Saab automobile company CEO (CEO) Zhan Ake Johnson (JanAkeJonsson) expression, “the Russian market for us is a very tight market closed, we take in this car brand Saab saw growth potential.” < br /> Swedish car maker Saab Automobile Company (saabAutomobile) today announced that the company has appointed ArmandImport companies for the Russian market imports Saab (Saab) car dealers, Armand will be Saab Automobile in cooperation with the Russian market when the major . Meanwhile, ArmandImport took over the Russian market from GMCIS Saab Automobile imports all relevant business covering marketing, sales and distribution lines.
expression of Saab business, the company has with China Automobile Trading Co. company (ChinaAutomobileTradingCo., Ltd., abbreviation CATC) signed a cooperation agreement. Under the agreement, China Automobile Trading Co., has been appointed business to take over Saab from Shanghai GM in China, all distribution and sales businesses. We are now history, Saab launched the largest-ever product ffensive therefore, our cooperation with ArmandImport right time. Earlier this year, Saab has been expressed, the introduction of the new car will be a local Saab expansion plan.
2011 年 07 月 29 日
. Saab corporate expression of the enterprises in the future Russia will sell the line through the ArmandImport enterprise network of 12 independent retail Saab deal in the existing business models, as well as possible future Saab new models. (K-car network)

Agera is to celebrate the super car manufacturer Koenig Sager, born of a vehicle, the overall streamlined body at high speeds can ensure adequate downforce and low drag. Power on, this beast was equipped with a 4.7LV8 twin-turbo engine, when engine speed at 2680rpm to 6100rpm when the output torque super 1000N · m, and can be reached at 5100rpm while peak torque 1100N · m . Vehicle curb weight of 1290kg, acceleration from zero to 100km / h only 3.1 seconds ,0-200km / h acceleration is just 8.9 seconds, top speed can reach 390km / h. Of course, access to these amazing properties is expensive, and 22.6 million yuan, Koenig Sager Agera become the Guangzhou auto show of the most expensive show car.
introduction of FFFAUTOMOBILE Koenig Sager Agera shows the same field two more small minority of super models, including a sports car from Germany, Melkus, priced at 185 yuan. Another is from Spain, Tramontana R, the super sports car in Spain CostaBrava manual factory production Tramontana R, although in the country is not known, but the unique body design is described as equation shock, while the performance is staggering, it price is 16.8 million yuan
2011 年 01 月 04 日

Source File: d: \ New Folder (3) \ data \ data \ flowers delivery system \ source code \ ST_FlowerPrearrange \ App_Code \ Classes \ ST_Base.cs line: 155
System.Web.UI.Control.OnLoad ( EventArgs e) 99
line 156:}
ST_GROUP.FlowerPrearrange.ST_WebForm1.ST_BindData () in d: \ New Folder (3) \ data \ data \ flowers delivery system \ source code \ ST_FlowerPrearrange \ ST_Main.aspx.cs: 41
Source Error:
line 157: finally
System.Web.Util.CalliHelper.EventArgFunctionCaller (IntPtr fp, Object o, Object t, EventArgs e) 15
line 154: {
ST_GROUP.FlowerPrearrange.ST_WebForm1.Page_Load (Object sender, EventArgs e) in d: \ New Folder (3) \ data \ data \ flowers delivery system \ source code \ ST_FlowerPrearrange \ ST_Main.aspx.cs: 27
ST_GROUP.FlowerPrearrange.ST_Flower.ST_GetNewFlower () in d: \ New Folder (3) \ data \ data \ flowers delivery system \ source code \ ST_FlowerPrearrange \ App_Code \ Classes \ ST_Flower. cs: 168
[Exception: user a login failures. ]
System.Web.UI.Control.LoadRecursive () 47
ST_GROUP.FlowerPrearrange.ST_Base.ST_ExecuteSql4Ds (String ST_strSQL) in d: \ New Folder (3) \ data \ data \ flowers delivery system \ source code \ ST_FlowerPrearrange \ App_Code \ Classes \ ST_Base.cs: 155
line 155: throw new Exception (e.Message);
System.Web.UI.Page.ProcessRequestMain (Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) 1061
System.Web.Util.CalliEventHandlerDelegateProxy.Callback (Object sender, EventArgs e) 34
stack trace:
Line 153: catch (System.Data.SqlClient.SqlException e )
Exception Details: System.Exception: user a login failures.

Important: the system detects that your account may have risk of theft, please see the risk warning as soon as possible, and immediately change your password. Close

to promote the economic development of people to continuously improve security awareness, when the traditional way of monitoring the local analog gradually to meet some portion of the industry, the demand for remote monitoring, such as a bank regional network monitoring, through the network for remote transmission of the image centralized monitoring approach came into being. Now, with the popularity of the Internet large-scale, remote monitoring has penetrated into the education, government, entertainment, hospitals, hotels, sports venues, security and other areas of the city. Familiar with remote monitoring of people know that the remote transmission of images after the intake of the main ways in addition to the Internet, as well as fiber. Some people think that, by Optical and fiber-optic remote monitoring, its video image quality and transmission speed of transmission over the network, but it is expensive and complex wiring projects cost prohibitive. More importantly, the network capacity is relatively poor, can not meet the needs of large-scale monitoring project. The network monitor shows it in this unique advantage: a place where there are network will be able to build a network monitoring system. By eliminating the traditional wiring and line maintenance costs, making the network monitoring system greatly reduces installation costs. For users, network monitoring is also not subject to time and place, in the authorization at any time on demand monitoring, plug and play-per-view, use very convenient. Thus, IP network monitoring agreement was considered a major future trend in video surveillance network.

At present, domestic and international stakeholders are working hard to improve and perfect the IP network video surveillance inherent defect, although the short term is difficult to meet the needs of users, IP network video surveillance technology can only say is maturing, but can be expected, IP network control will be further improved with the network and develop rapidly. Development of a video surveillance system the past twenty years time, from the earliest analog monitor to the monitor and then a few years ago now in the ascendant hot digital network video surveillance, has undergone enormous changes. Progressive unification of IP technology in the world today, we need to re-understand the history of video surveillance systems. From a technical point of view, the development of video surveillance system is divided into the first generation of analog video surveillance systems (CCTV), the second generation based on “PC multimedia card” digital video surveillance system (DVR), the third generation fully IP-based network video surveillance system ( IPVS). The first generation of video surveillance: as traditional analog closed-circuit surveillance system (CCTV): dependent on the camera, cable, VCR and monitor, and other special equipment. For example, the camera via a dedicated coaxial cable output video signal. Cable connected to a dedicated analog video devices such as video Quad, matrix switchers, cassette recorder (VCR) and video monitors. There are a large number of analog CCTV limitations: a limited ability to monitor only supports local control, by analog video transmission cable length and cable amplifiers limits. Scalability is usually limited by the video system, Quad, and the switching matrix input capacity limits.
network monitoring to promote the advantages and broad prospects for domestic and foreign security firms have R

On the other hand, so many types of compression technology, but also allow users to choose the network cameras and video servers, resulting in a lot of problems, some users required to achieve real-time network transmission, and some require high image quality, but some requires back-end storage system capacity is large enough …. For network-based products, network transmission speed, image quality and system storage capacity with the compression method used in the product is closely related to the three and each other, it is difficult to achieve three while those who reach the ideal state, can only strike a balance among the three, that the actual needs of real users themselves. Many manufacturers recommend that users in the choice of network cameras and video servers, the first should be a clear system of existing resources and systems to achieve real results, not the blind pursuit of market so-called “hot” product or cost.
Network Camera is a traditional camera and network video technology combined with a new generation of products, in addition to conventional cameras with all the image capture, the machine has built-in digital compression controller and WEB-based operating system, making compressed video data encrypted, LAN, internet or wireless network sent to end users. The remote user can own a PC using a standard Web browser, according to the network camera with a unique IP address, access to network cameras, real-time monitoring of the target site, and the image data real-time editing and storage, other You can also network to control the PTZ camera and lens, all-round monitor.
Wavelet Transform
address this problem in different network environments have different solutions in LAN, WAN, intranet environment. IP address resources are relatively abundant, if not, you can use NAT approach, which uses a different port IP address to resolve; in the INTERNET, you can use DDNS server on the network to establish the method to solve the problem of dynamic IP address , that is, each network camera or video server has a network of secondary domain names, the two domain names corresponding to the network camera or video server, MAC address, as long as the network camera or video server on the network, it will automatically connect to the DDNS , regardless of its IP address changes, the customer as long as the IE address bar, type the domain name, you can through the DDNS server, the network camera or video server and remote client IP address to connect to domain name resolution purposes.
certain angle, the video server can be seen as a network camera without a lens, or without a hard drive DVR, its structure is also broadly similar to the network camera is simulated by one or more video input port, digital image processor, compression chip and a server network connectivity posed. The input video server digitizes analog video signals, the digital signal sent to the network model, in order to achieve the purpose of remote real-time monitoring. As the analog camera video server successfully “converted” to the network camera, so it is also a network monitoring system with the current analogue CCTV system to integrate the best way.
In addition to the video server network camera can be achieved with the same features, the device configuration more flexible. Network camera lens and the body itself normally functions subject to the restrictions, the video server in addition to the traditional camera connection and regular, but also can connect the camera some special features, such as: low-light cameras, highly sensitive infrared cameras.
camera network camera as a new member of the family, also has the same operation with the general performance of the camera, for example, with automatic white balance, electronic shutter, auto iris, auto gain control, automatic backlight compensation function. On the other hand, the network camera with networking capabilities, so they can support multiple users connected at the same time, some network camera also has a dual function, both at the same time analog output and digital output network.
MPEG-4
2010 年 09 月 09 日 What is a network camera
In addition, there are some manufacturers to use the MPEG-1, MPEG-2 compression format, addition of addition, some manufacturers also use a combination of a variety of compression methods, such as VN-C10U Network Camera, its compression is MPEG-4, combined with JPEG, JPEG still images can be seen at the same time, the use of MPEG-4 high compression, high-quality dynamic images that can be in low-bandwidth transmission.
As the network cameras and video servers with separate IP addresses, can support multiple network protocols such as TCP / IP, HTTP, ARP, UDP, etc., so the compressed video data is processed through the WEB server, the LAN or INTERNET sent to end-users, users will know about a network camera and video server IP address, you can see to this network cameras and video servers to monitor the image.
two domain names, dynamic IP address
H.264 is the ITU-T VCEG (Video Coding Experts Group) and the ISO / IEC MPEG (Moving Picture Coding Experts Group) Joint Video Team (JVT: joint video team) developed a new digital video coding standard, it is both the ITU-T H.264, but also the ISO / IEC MPEG-4 Part 10. January 1998 began to collect the draft, September 1999, completed the first draft, May 2001, developed its test model TML-8, 2002 June 5 th JVT meeting adopted the H.264 FCD board. Released in March 2003.
network cameras, video servers generally use any compression
MPEG-4 focus is to address the low-bandwidth audio and video transmission problems, the bandwidth in the 164KHZ, MPEG-4 transfer on average 5-7 frames / sec. Using MPEG-4 compression technology, network-based products use low bandwidth networks such as PSTN, ISDN, ADSL, etc., significant savings in network costs. In addition, MPEG-4 up to a maximum resolution of 720 × 576, close to DVD picture effects, image-based compression model determines the movement of objects it can guarantee a good resolution. MPEG-4 all of these advantages, making it the current network product manufacturers to develop one of the important trends, such as NS-1040 video server, VS series video servers, AV1500E-T/TA network video server, WEBCAM800 Series network video server, etc. .
wavelet transform also belongs to intra-frame compression techniques, such as image compression removes high frequency components, leaving only the single-frame image signal, especially for the occasion frequent screen changes, and the compression ratio has also been some increase, therefore, be some network cameras and video servers are used, for example, NetCam-4 Series digital network cameras, NETCAM series network cameras.
network cameras and video server applications as a network of new products to meet the network requirements are bound to become an important factor in product development, and which video technology has become critical. In the current China network cameras and video server products on the market, a variety of compression techniques vary, and have their own advantages, to provide users with a lot of options.
Throughout these compression techniques, although MPEG-4 image compression with its excellent performance, very low bandwidth to support video conferencing to achieve the quality, thus becoming the future network-based product development mainstream, but now the application of the market situation, MPEG-4 does not yet account for a dominant position, the reason is mainly because although the MPEG-4 international standard has been developed, but the MPEG-4 algorithm is public and therefore manufacturers fragmented, mixed, secondary development of follow-up brought a serious impact, in addition, MPEG-4 is also the image quality to be improved, in a complex network environment, the data flow through the large easily lead to data loss.
a considerable part of the international network cameras and video servers are based on JPEG, Motion-JPEG compression technology, such as latest Z2OP network camera, 2130PTZ network camera, CAM50 webcams. JPEG, M-JPEG uses intra-frame compression, the image clear, stable and suitable for video editing, and can be flexibly set for each channel of video resolution and compression frames. In addition, because of its compressed format can be read a single screen, it can be any editing, especially for use with security forensics.
JPEG, Motion-JPEG
video information network environment and the relationship, like “Road” and “car” like the relationship, to protect the “vehicle” smooth, safe driving, you must first do a good job. ” road “construction. Since China current network environment, there are still various issues to be resolved, but also makes network products network cameras, video servers can not play the advantage, the improvement and development of the network bottleneck in the development of a product.
H.264
video server on the market today with 1 – and 4-way video input-based, and has a remote control on the network PTZ and lens functions, in addition, the product can also support real-time audio transmission and voice intercom functions, and some video server also dynamically triggered event detection and alarm functions.
network resources into what the bottleneck is the network video server
from the external structure, the current market there is a network camera lens for the built-in integration models, this network camera the lens is fixed, can not change; another can be replaced according to the standard C / CS mount lens, just to be with a C-type lens CS-C converter with the installation. But the internal composition that either model, the basic structure of most of the network camera by the lens, filter, image sensors, digital image processor, a compression chip and network connectivity with the server components.
There are some network cameras and video server uses a fixed IP address, but because of China current network environment is also not well developed, especially in the INTERNET fixed IP address lease more costly, so most Network cameras and video server products are mostly used in dynamic IP address, that is, network cameras and video servers every time you log online, the network is assigned a new IP address, the same as dial-up ordinary PC, but also for remote users network camera or video server all the search caused some difficulty.

Video pixel: 320×240
Photo Pixel: 640×480
Product Description
file formats: JPEG format photos, video to AVI format
2, to detect moving objects, conduct an automated camera / video;
6, the image storage to “FIFO” principle, overwrite, never stop;
SD Memory Card: (optional)
12, the dynamic detection range, sensitivity, the time interval set by the user and re-save;
factory direct 155 yuan / Taiwan (6 units from the Order. long-term supply 15915349574
Video Polarity: Negative
9, to with a variety of alarm system / video door phone system, forming a new shooting alarm system;
DVR900 is a mini-SD card video recorder motion detection; machine uses advanced Motion Detection Technology and Motion JPEG compression way, the basic functions can be summarized as follows: When the moving object in the camera field of vision when, DVR900 can automatically (or manually) to record or take pictures of the screen and saved on an SD card. Users may at any time in the TV (monitor ) or computer (requires reader) to view recorded images can be stored in the computer.
eye-level polarity: Negative
14, by shooting date can find, view, and Delete image files;
mini-SD card video recorder DVR900
⒉ Function:
Video input level: 1Vp-pTyp
2011 年 03 月 07 日
compression: Motion JPEG
15, Has the simple operation menu, no need to install the software;
Video Output Impedance: 75Ω Typ
4, maximum support 2GbSD card, can store photos 28800, 4500 stored video segment;
recording time: the length of each recording time :10-20 seconds
operating current: 400mA
17, there is DC12V Output voltage self-host port; can give DC12V voltage cable for the camera.
⒊ technical parameters:
13, to capture the image file name to store the date;
video segments can be saved: about 4500 segment
SD card capacity : maximum support 2Gb
DVR900 host 1; DC12V power supply 1; external shooting a line of control; input / output control line 1; AV line 2; power cord for a camera.
can keep the number of photos: About 28800
10, power-down, save the SD card that is not lost;
7, support a variety of CCTV cameras (CCD, CMOS) access;
Output voltage: DC12V camera for use
5, the host to support all the way video and audio inputs and one audio output connected TV;
8, the “outside triggers shooting” port and “motion detect signal trigger output” port;
Video input impedance: 75Ω Typ
Operating Temperature: -10 ° C ~ 50 ° C
⒋ product configuration:
3, no moving objects stop moving , stop shooting;
Video output level: 1Vp-pTyp
voltage: DVR900 (DC12V)
⒈ Description:
small digital video recorder>> mini-SD card video recorder < br /> 16, the host has a key lock function to prevent false triggering, misuse;
11, supports NTSC / PAL video in both formats (TV) signal;
1, immediately after booting into the “dynamic detection of “working condition

DVR (DigitalVideoRecorder) digital hard disk recorders, video surveillance industry is currently the most common and most ideal video surveillance and recording equipment.
DVR is a computer for image storage and processing system, with the image / voice for a long time video zj.xdysz.com, recording, remote monitoring and control capabilities, DVR set the VCR, Quad, cloud camera control units, alarm control, and network transmission five functions in one, with a single device can replace a lot of equipment, analog control system functions, and gradually the price advantage. In addition, DVR video recording is good, clear picture, and repeat several times to record, playback images can be retrieved for storage.
mainstream DVR market today use compression technology MPEG-2, MPEG-4, H.264, M-JPEG, and MPEG-4, H.264 is the most common compression; from compression card divided on the soft compression and hardware compression are two kinds of soft pressure influenced by the CPU, most can not do full real-time display and recording, so the hardware compression gradually eliminated; input from the camera into the large ones on the road is divided into 1, 2 , 4 -, 6 way, 9 way, 12, 16, 32, or more large ones; Overall, the system architecture can be divided into two categories: PC-based DVR and PC-off PC-based embedded DVR. 3512 Hass network module
Digital Video Recorder is designed fundamentally to replace the original low-quality, high repair rate of CCTV recorders, analog recorders such as video surveillance. 80 m IR not only revolutionized the uniform ball DVR CCTV video surveillance system extends the functionality and the additional features that make it far superior to previously used analog recorders.
DVR system hardware consists of CPU, memory, motherboards, graphics cards, video capture cards, chassis, power supply, hard drive, connecting cables and other accessories.
2011 年 06 月 08 日
Therefore, DVR is not only an increase in the general sense of control system components and functions, and, DVR software has been greatly expanded video surveillance system design, features and benefits . Alarm signal via the digital input and output to the DVR, almost all types of DVR security system combinations are allowed as the main embedded monitoring and control equipment. [Top] DVR working principle of structural analysis and common sense sort
First, and most importantly, DVR to record high-quality image data on the hard drive, eliminating the trouble of constantly change the tape. Hass network module Secondly, DVR built-in multiplexer can simultaneously record multiple CCTV video recorder, a video surveillance system to reduce the required equipment, showing the powerful. Thus, by the security cameras and digital video MPEG-4 based compression, DVR can record high-efficiency multi-channel high-quality video stream. DVR may also use other side format backup video information, such as CD-RW/DVD-RW. USB drives, memory cards or other memory cards.

Second, the DVR NVR form of the maximum limit play, structure similar to – NVR NVR IP camera use, DVR using analog cameras DVR , function similar – NVR and DVR also supply a similar integration effect, cover loose in the video, the management , the local show, video forwarding, and other long-distance interview, the device is similar – NVR with an innovative plug and play device, users only need to pull on the NVR and IP cameras enough line, turn the power on it, even without setting equipment, furnishings avoid any IP parameters, you can complete the installation to use the whole course, which is also extremely similar to the placement of the DVR, use similar – NVR and DVR to mention find a similar mode of operation, remote control, PC, monitor keyboard so you can , and the interface is the maximum limit of the DVR for a succession tributary, the cost of similar – just NVR IP camera equipment costs slightly higher than the DVR analog cameras, but to bring the network cabling, maintenance costs of the demolition and land, NVR and DVR allows customers to split the cost (TCO) is very close.
other, after the high-definition video from a CMOS sensor, CMOS sensor indirect input digital video signal, the camera DSP or ASIC through this digital signal directly to compress high-definition video encoding, and then transmitted to the network, high-definition signal input than the camera more directly economic.
different and to make short NVR in less than a year when the outside has made widely recognized, and changes to the conservative people miss all kinds of network video surveillance or stereotypes, but their mobility and the NVR NVR market response to loss of space is extremely expansive. Thus, they are just like a digital surveillance DVR moving rapidly forward to improve the same, NVR and must promote the collection of monitoring moving rapidly throughout. Road 2009 non-video monitoring was probably the high is not too muddy, CCTV manufacturers, DVR manufacturers, IP surveillance manufacturer or even the vain name of the cottage manufacturers, are to strive for this year high-definition monitors pulled out of the product. One of the most intense effort to spur a network video surveillance craft is naive.
network video surveillance has been debated for many years comment, but in 2008 before the first meet at the conceptual level, Embedding wiring facilities, agricultural facilities maintenance capital is low, close and good, scalability, and weak. Although these disadvantages do video surveillance network to bring Shen to innovate, but our innovation and customer value of these coherent together, we often have to control general hidden and can not be touched by customers indirectly invalid.
public security, finance, and other industries connected to the video applications are comparable to any small, over a narrow, touching the very jumbled images breeds, such as video surveillance, video meetings, conditioning and other visual instructions, its external video monitoring and compliance for the Province / City / County of different days of the domain, analog / DVR / network of different systems, wired / wireless transmission of different ways, external / internal and other varieties of different types from the original, and then go up another manufacturers brand of DVR good with. Tired due to the constant short uniform standard, so Ruo collection of resources to achieve these image sharing and unity of the swap is becoming urgent issues facing these industries.
we know, high-definition monitor must be networked, video compression based on stretching must be disposed of and to stop transmission over IP networks, such as many abilities as long as high-definition video transmission control capital. Enlist after the already compressed high-definition video signals and digital transmission poses to imitate the pattern of normal use YPbPr analog transmission weight transfer, with high-definition video signals while the necessary three coaxial cable transmission. Digital transmission, as usual use DVI, HDMI perhaps HD-SDI transmission, the transmission of DVI or HDMI herein interval as long as a few meters, is not suitable for monitoring transmission, while the HD-SDI, although you can transmit 100 meters, but the request is for coaxial cable high, the price of cable is also particularly very noble. Whether it is digital simulation method is still transmitted, high-definition video without the crunch flags signal transmission costs are obviously higher than the imitation of the previous definition video signals. The use of video encoding and tight stop transmission over IP networks, high-definition video and standard definition video on the original transmission to vary considerably.
the first from 2008 to present, network video monitoring of the upper hand against the gradually extended and extended to the detailed application level – NVR, HD, and wireless integration, these applications from the base reflects the network video surveillance can bring innovation and experience of customer value, so as to promote awareness of network video surveillance to obtain fast and popular.
capture back-class networking through the small differences in regional cities and counties to complete payment, different levels of integration to share the image data stream, through the power of authority were harsh defeat the resources required to call. The vertical, the latter through a variety of media cross into the net off the response of the image and disposal of capital punishment, war and peace talks with the same scale of zero to these images together into a unified resource images administered an IP platform. Through the entire opened first, authorized users to the same narrow stage is a comfortable, under the effect of the diversion of resources to their desired image, and not to care what these images from the set of resources to accept the type of equipment, furnishings and top-level skills.
2011 年 09 月 07 日
whether video surveillance wireless access point, wireless video, the client still reading, 3G and wireless monitoring results are sent about to the great market space. The popularity of wireless monitoring video surveillance network will launch a high increase. Takes into thinking from the application of network video surveillance has brought it, customers can experience the value of innovation. And with off NVR, HD, and wireless integration of these applications become increasingly unpopular, network video surveillance is no doubt slow down before the line break situation, to enter the high-speed growth temporarily.
traditional security areas was very touching throughout, prison, finance, teaching, home security industry will always be just so much to pile layout video surveillance, alarm, access control, on the road, the security patrol and other female systems self- . With the support of the security goes back deep and continued popularity of network security applications, the subject gradually into the show: First, the security subsystem independent of each other, the lack of linkage, resulting in an emergency upheaval when, can not be efficient early warning defense espoused probation; two are sitting alone for all security systems, control and protection subject to short, the police and resources China extravagant clear. Strange because then the heart, regulate the inconsistent, so the results make this a non-stop access useful treatment.
NVR is more than just a product so simple, NVR video surveillance network to spread from the point of view, go after the real one from the central part of the network video surveillance at the application layer in the main value of the innovation performance.
former times past, this integration can not be read as a. The heads of today, the maturity of network video surveillance makes a natural result. Integration with Kodak image processing program, for example, through a unified platform for image networking Eve, in both vertical and horizontal dimensions of the image on a variety of resources to complete the access, sharing and integration, and thus eliminate the separate display and specification information silos caused by differences in signs, and promoted the efficiency of imaging applications.
From April 2008 subjects (KEDACOM) announced lay the balance due embedded NVR, and Britain last year after the introduction of universal, each beginning slowly to eliminate the traditional network video surveillance all the scruples, the more increasingly take over and approved the application of this new form of Qi. Based on our research, recognized master of the most important reason is the reason two round face:
whether image integration, integrated anti-crisis business as usual, is to bring innovative network video surveillance applications, users can feel a huge value. Thus, these two types of integrated applications without the letter A will drive the rapid increase of network video surveillance. Brings network video surveillance applications is another component of the wireless monitoring. Of course, refer only to win the amount of transfer from copper, fiber led to the atmosphere, but the significance of the wireless monitoring is often the length of the long-term. In particular, the commercialization of 3G closed course, more to the traditional wired security surveillance industry has brought the idea of ??endless space.
vertical take a look at the video surveillance market in 2009, most focus is now changing body – from concept to network video surveillance application, which is put into the high-speed network video surveillance delete key life time mark.
First NVR network brings all the disadvantages of low-cost wiring briefly, the image does not disturb Mongolia, real-time video and recording video of the same, high reliable of storage, networking, namely Jie;
Moreover, Jinan Add a network video server monitoring pole combination, this growth will be the body at the moment in all aspects of network video surveillance, but not only network cameras, Jinan monitoring pole that is immediately followed by a valid signal. Detailed customer applications on-line, high-definition front access only in the cage cover, middle management, video storage, system performance and other key code only is it real meaning. Because he, network cameras, NVR / management platform, TV decoder, the city wall along with increased access to less one-sided.
For example, after the alarm system to take control piecemeal together quiet, attack alarms, video surveillance initiative linkage look back sound and light alarm, switch alarm image under the wall surface to hold image capture, start the video storage, management plans and other shells came in. a splitting manipulation. And fragmented by the process of access control and monitoring system of linkage, have access member payments, the hidden field will take the initiative to capture images and shoot video to launch dead storage, entry into the real-time documentary news staff. Both those who promoted the linkage of time to the Interahamwe, but also for the supply of the song after questioning the suspect for indecent for when.
The network also change the traditional thinking, so security is decomposed into an ideal whole. Security integration with Kodak strange treatment options (security analysis and management), for example, the center is through a different interface, protocol access to video surveillance, alarm, access control, intercom, patrol and other security subsystems, then networking unity of style to an integrated management platform, on the one hand, these really are the unified management of security subsystems, falling-rising management efficiency, the other for video surveillance subsystem linkage with other security subsystems, each subsystem promotion defense skills as well as the escape pre-traceability.
This city trail from now people can see the front of the entire high-definition monitors are high-definition network camera can take a look at the notice.
not to say that the network video surveillance into a catalyst to dead HD monitor. Varies, the high definition network video surveillance is now monitored from birth to slaughter foot level for the line to use the most, the best performance of the main household consideration of the use of the old record. Is, along with HD warm down to be done to accelerate for the network video surveillance will certainly get high fast increase.
presented before the NVR, a model of the foundation of network video surveillance system architecture can be divided into two types: one is to visit IP camera plus the management of complex hardware, a service of control by large-scale video management platform. In response to these two methods have limitations on the scope of relatively large, are not appropriate a small amount of the universal market. Deal with universal market, the first approach is too complicated, since the DVR compared with the equipment management, video transfer income distribution, video storage, the use of exercise to do more than match the defect exists, not satiation of user needs. The second method are too large, resulting in a high cost, easy to install placement, land stability, maintenance and management issues such as the use of over-Boye. All these issues make the network video surveillance have long-lasting and more scruples than force.
3G high-band width can be truly satisfied with the wireless transmission of video surveillance needs, and 3G wide monitoring point to make arrangements to cover up everywhere, 3G and also allows the moving of the client can meet anytime, anywhere. These features make the wireless monitor not only have to be content specific set of deployment requirements, such as car, shall be slow command, temporary and other occasions, and will promote the video surveillance by the court and the opposition groups with a plain near the market hope.

One. Operating system
2) through the RS485 network Barrier unified billing system time, show a good image of the community management;
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IT industry in both Windows and Linux platforms intense competition spread to the security industry. Linux is an operating environment can be multi-user, allowing multiple users at the same time while using the resources of the host computer. Linux offers full multiplayer (Multiuser), multi-tasking (Multitasking) and multi-trip (Multiprocessing) environment, can be downloaded on the network use. Because of its source code (Source Code) is open, it can be any development, modification, so Linux users do not have to worry about the lack of need applications, accelerate the speed of research and development, and the system itself, and most applications is free, allows developers to save an enormous amount of research and development costs. In addition, the lower the hardware requirements of Linux, so that users can save more hardware cost, and overall product cost decreases. With the popularity of the Internet, the world more and more people use Linux, but also attracted many improvements into the core of the development staff, develop application software and hardware drivers around the ranks, so Linux is increasingly expanding function and integrity, as the side the focus of attention.
1) through the network to NTP / SNTP protocol to multiple DVR video surveillance equipment in the school network, to ensure the multiple unity of the DVR time, playback and search for the event to facilitate;
DVR hard drive VCR technology is still constantly in development, and one of the key technology is the operating system and image compression technology.
DVR DVR in the early stages of development as competition, a wide range of stakeholders so that the industry is quite “dazzled” in a sense, the changes over time, the various types of classification are generally formed. According to the Taiwan Industrial Technology Research Institute of the photovoltaics industry, “Optoelectronics Industry Development Analysis” report, roughly all of the DVR DVR is divided into three categories:
Website: http://www.ruicheng-china.cn/ < br /> 4) through the internal network to provide NTP service to companies within the community to provide a unified time service.
JPEG compression factor of 20 to 80 times, for a static picture compression, resolution no choice. Previous JPEG compression technique is to deal directly with the whole picture, so to wait until the entire compressed file transfer is complete before starting the extract shrunk image screen, and such a high resolution picture transmission means to cause to be time-consuming tens of seconds or even minutes. The new generation of JPEG is to take a gradient-based technology, the first transmission of low-resolution image file, and then supplemented to send details of the information, to make the picture quality improvement. Although the time required in this way the same way as the original, but you can first see the screen, so users will feel better this way.
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3) through the barrier system shows the exact time for community residents to provide high-precision time service;
2011 年 07 月 12 日
Address: Shanghai Xiang Yin Road 128 Shanghai University of Science and Technology Park, Building 1, State
In addition, Windows software upgrades, also stronger than other operating systems. As the IT industry in recent years is closely related with the security industry, so when digital technology in the IT industry, while thousands of miles into the day, is bound to affect the development of safety-related technology industries. Windows may be the reason why many manufacturers like to use, but because it has strong scalability. Companies that, due to DVR DVR system can not long remain in a fixed level, so scalability is bound to become a key point of system development. If you consider the cost of eliminating the old, once the user for the existing system to produce higher system requirements or the original exposed some flaws, most of the users are less likely to buy a new system to replace, this way, the product upgrade to become a primary solution.
In addition, Linux is a network-based operating system environment, with full network capabilities, users can connect under Linux on a stand-alone Internet, can also be set up local area network (LAN); also can set up the Linux kinds of Server, provides Internet and Intranet e-mail, FTP, Web … all kinds of services. Under such a trend, Linux DVR as DVR manufacturers eager to operating system. Some suppliers even said that Linux is more suitable than Windows applications on the DVR in the DVR. South Korea, Eastern Info-Com overseas markets, namely the Ministry of Associate Hyoksang Kwon said: “Because Windows unstable, and the price is high, in contrast, Linux seems to be the most potential for development of the mainstream operating system.”
In fact, now under the “Linux as a DVR DVR operating system better than Windows” too early to draw such a conclusion. According to the reaction of other manufacturers, Linux compatibility, there are still in some problems, such as printer support, Internet connection, etc., not as good as Windows. In addition, already accustomed to using Windows applications users, will not meet the beginning of the Linux operating mode; and for Linux can read files of Windows, but Linux still can not read the file to the Windows system shortcomings coupled with the rise of the Linux operating system for the later, so maintenance personnel in the current situation is not very adequate, many manufacturers choose to use with the Linux system will also have some psychological barriers.
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K series high precision GPS time server Features:
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2. MPEG1 and MPEG2
3. RTOS for the user interface to
1. Linux-based user interface
stand-alone DVR is a DVR to re-use of CPU and RAM to development and design, using proprietary software programs, research and development costs are higher. Using hardware compression, quality and stability, there will be no crash problems arise, and in the image storage speed, resolution and image quality has greatly improved on. This type of products only provide a simple digital video playback functions, such as radio signals instead of receiving additional other, on the Internet and other functions. As used in the field of security surveillance products are mostly above Category 2 and 3 classes, so far as this article will discuss these two types do. PC-based stand-alone type system with which one is better type of controversy, so far still can not draw a conclusion. At present, although the DVR to PC-based DVR majority of the market, but it was observed that two types of products will be produced each market segment. DVR 1995 DVR is put into the field of development in Japan Ikegami company and its overseas manager Yasuhiko Saito pointed out: “DVR DVR market will be facing two different directions, on the one hand, the RTOS (Real time Operation System, real-time operating system ) in the reliability of operation is expected to be of great development; the other hand, the emphasis on the work of the DVR can be networked DVR product, Windows operating system is as easy to operate and will become another mainstream. ”
K series was sharp precision GPS time server is the sharp Shanghai Electric Co., Ltd. was developing a community to adapt to the digital time synchronization system, network and communication interface through which a variety of video surveillance, security, unity of time barrier toll facilities.
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Although the supplier that the stability of the system depends on the user actual operation, however, Windows operating system itself is unstable, so that users are still quite a challenge. There are vendors that, if only simple to use monitoring system, Windows 98 system is fairly stable; but if the Windows platform to run other programs at the same time, system instability, or even crash the inevitable.
However, stand-alone DVR DVR is the greatest challenge currently facing the networking capabilities. Popular in networking today, more and more users use the network, Korea Digital Logic Jonathan Kim that said: “When we talk about stand-alone DVR DVR, it is often left out of the remote control part of the network, but If you can not DVR DVR system and network convergence, and frankly, it can not be called DVR DVR system. ” Some Western manufacturers have the same view, such as the U.S., Germany, Britain and other Nordic countries, has the network function as the key to digital CCTV products. UK Dedicated Micros Executive General Manager Mike Fawcett example: “Britain chemical industry, pharmaceutical plants using the network-DVR DVR equipment, in addition to the cost of saving a lot of manpower, but also can work in any place monitoring and line status , thus saving a lot of costs. ” Feature allows users to be networked via LAN / WAN, Internet and other networks for remote monitoring. This feature has been predicted to become the future mainstream CCTV market. In order to make products with networking capability, stand-alone DVR DVR manufacturers into “price vs. Function” dilemma. South Korea Korea Computer Technology YH Min, general manager pointed out: “In order for DVR DVR with networking capability, we must stand-alone DVR DVR add some chips for this, we must increase the amount of investment and costs, price competition in an increasingly severe cases, the cost increases to our very vulnerable. ”
For stand-alone or PC-based DVR is a DVR, RTOS (Real Time Operation System) is the best operating system, currently on the market this type of supplier to South Korea and Japan-based. Many South Korean companies such as 3R, Korea Computer Technologies, Kodicom, Artinix so that the stand-alone DVR DVR with high cost, high stability and the security controller with both high compatibility and so on, so while all the previous launched a stand-alone type DVR DVR. For Japanese manufacturers, will be committed to the development of stand-alone DVR DVR is based mainly on considerations of image resolution, now, most PC-based DVR DVR picture quality not as good as stand-alone type DVR DVR.
stage DVR DVR compression technology used to JPEG, MPEG1, MPEG2 based. Strictly speaking, these compression techniques are not able to fully meet the needs of a long video.
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what compression method is more suitable for DVR DVR products in view of considerable differences in the views of manufacturers. South Korea 3R Sung-IK Chang specifically pointed out: “Broadly speaking, the compression technology uses two methods, one is intraframe, the other is Interframe. Interframe can distinguish differences in each image, and only send images of different parts of , H.263 and MPEG is the representative of this format, while Intraframe way to put a movie into several fixed a picture of a transmission, Wavelet and Motion JPEG with representatives of this approach from the transmission efficiency considerations, Interframe in performance is much better than Intraframe; Moreover, Interframe small changes in technology in the case of the screen, can provide very good quality. ” However, security products, the user must take into account the problem of image quality, MPEG at this point should be less than the Wavelet and JPEG. Digital Logic Jonathan Kim, said: “We recognize the MPEG4 video compression is superior, but there is MPEG series are distorted screen image interference and distortion. If you want to buy a large memory capacity of the DVR DVR, he can consider the MPEG compression; but if you want to have good quality, you should consider other compression methods; that way as well, it depends on customer demand. ” Eastern Info-com companies Hyoksang said: “The image sharpness, and image compression, CPU and other related hardware is inversely proportional to the load, as MPEG4 has a very high compression rate, thus resulting image is not clear To achieve the security industry standards required for the image, there is still much room for improvement. ” DM chief executive Mike Fawcett further pointed out: “For still images, whether in JPEG or MPEG compression method compressed mode, transmission speed is the same, however, if the object is to present the state of motion, the MPEG format is not an immediate response transmission, because transmission of the MPEG format is slow, or monitoring the scene prone to interference. ” In his view, JPEG compression technology, both in image quality or in the transmission speed, are more suitable for the security industry. He said: “I think the JPEG quality is better, more competitive, but also safer.” With the DVR DVR technology continues to evolve, gradually expand the storage capacity, users will inevitably become increasingly high quality requirements. British Visionfactory chairman David Beanland said: “Although the image of JPEG and Wavelet formats take up more storage space, but this compression technology in the DVR DVR industry is still the mainstream. There is no doubt, DVR DVR storage capacity will be gradually expanded storage capacity of 200GB DVR DVR over the slowest in 3 years later appeared in the market once capacity issues are resolved, the user will focus on image quality, while MPEG compression technical means will be eliminated. ” Beanland MPEG compression technology also questioned whether the recorded images can be used as reliable evidence in court, now in the U.S. and European markets is also debatable. Currently works in the Philips company, has 14 years of experience Alan Everid believes that the DVR DVR products,, Wavelet compression is the best way. The main reason is to remove the image Wavelet frequency components (high frequency components), retaining only single-frame image signal. This feature, especially for the screen to change frequently occasions, such as time-sharing multi-screen display. However, Wavelet image although in line with requirements of the security industry, but in considering whether or not the network element, the reader should pay attention to the existing IT network Wavelet is not universally supported format, so the use of the network will be limited.
two. Compression
1. JPEG
The compression factor of 450 times (still images up to 800 times), the input resolution from 320 × 240 1280 × 1024 到 of MPEG4, is designed for mobile communications equipment (eg mobile phones) in real-time transmission Internet audio / video signals and the development of the latest MPEG standard. MPEG4 and MPEG compared to the previous version, the biggest difference is that MPEG4 using the “layer” (layer) way to intelligently select the image difference in compression under the individual edit screen, so that figure substantially reduced file size, and speed audio / video transmission. Some people think that the emergence of MPEG4, DVR for DVR manufacturers is undoubtedly a blessing, but also some manufacturers that, MPEG4 Although the set specifications, but the actual technology used in the DVR DVR is not yet mature at this stage whether the soft , are to be implemented in hardware break (more “technical articles ─ MPEG4 compression technology to DVR DVR Applications”).
two. Digital STB type
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and MPEG1, MPEG2 moving image is not in the case of the compression factor is about 100 times (usually VCD, DVD about 35 times ), from the VCD, DVD specification point of view, MPEG1 resolution of 320 × 240 (or less), MPEG2 is usually 720 × 480. MPEG1, MPEG2 is sent a picture of the different actions of the local picture.
3. MPEG4
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PC-based DVR DVR type of its application platform for the average PC, laptop, etc. Installation of one or more of the PC chip video capture card, the use of the software implementation of image compression and image editing functions, the system less stable.
2. Windows-user interface
community safety is an important community management work. DVR digital video technology as a means of community security is becoming increasingly popular technology, DVR as a video recording device, the time accuracy is very important. The clock comes with the DVR system is not accurate because the high cost relationship, and must be regularly calibrated manually, especially more than one DVR to keep pace, which is manually impossible task. Without the DVR time synchronization, in the event of an event will need to play and retrieve a great deal of difficulty, reflecting the community management of the merits.
STB refers to Set-top Box (usually translated into: digital satellite receivers, set-top boxes, TV Internet access machines, video boxes, due to translation differences, it is referred to in this case to the STB). Types of digital STB DVR DVR functionality integrated in the nature of the signal reception platform to provide digital video recording features and receive digital broadcast signals and interactive applications based, can choose to receive terrestrial digital wireless transmission (Digital Terrestrial), digital cable television broadcasting (Digital Cable), digital satellite transmission (Digital Satellite) and other different types of communication signals.
parking system is an important source of income for the community, and the parking fee based on time, accurate time can reduce the charges arising from disputes, shows community-managed image.
main architecture for PC-DVR is a DVR, Windows platform, its easy to use, application and other characteristics common among the top list of various operating systems. 3R Group, president of South Korea Sung-Ik Chang said: “Most DVR DVR and related products, manufacturers are using a Windows-based operating system; especially in large markets like the U.S., the user, for the future maintenance, and more inclined to use based on DVR DVR for Windows product. ” Korea Digital Logic overseas marketing manager Jonathan Kim said: “We believe that the Windows operating system is best suited to DVR DVR series, because Windows is more common operating system, hence, have higher supportive, regardless of any place Windows can support most of the relevant product. ”
one. Stand-alone (Standalone) types
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three. PC-based type