Predicting 2011 West America Security Highlights New Technology Products

The 44th U.S. West Security Products Fair will begin in Las Vegas from April 6th to 8th. The U.S. Western Security Exhibition, together with the U.S. East International Security Exhibition held in New York each year and the Brazil International Security Exhibition, together form the International Security Exhibition Series, and has become the most influential professional exhibition in the world. Thousands of new technologies and products are exhibited here every year. These new products and new technologies also indicate the future development trend of the security industry. Next, we will make a prediction on the highlights of the US Western Conference in conjunction with current hot spots in the security industry.

First, video surveillance "cloud computing" through cloud computing is not a new concept. Its most basic concept is to automatically split a huge computing program into numerous subroutines through the Internet, and then submit it to a huge system of multiple servers. To the user. Through this technology, network service providers can achieve tens of millions or even billions of information in a matter of seconds, and achieve the same powerful network services as "supercomputers." It simply means running the application on a remote server and accessing it through the Internet by users, just like online banking.

However, cloud computing is new in the field of video surveillance. Applying the principles of cloud computing to camera hosting and real-time monitoring services, by integrating computing power at the server level into a single location, creates efficiency and provides more functionality and flexibility than ever before on a economies of scale basis.

Implementing cloud computing is a better way to consolidate video surveillance systems, especially when video surveillance is placed in different geographical areas or facilities. There is no need to run multiple DVRs and NVRs. All surveillance videos are centrally hosted in the data center. Users can access it using a web browser so that users can save software, hardware, and maintenance costs. Remotely stored video also eliminates the risk of the video being damaged or stolen, allowing users to access multiple locations or houses from anywhere in the world. Therefore, cloud computing not only enhances the security of surveillance video but also improves the monitoring flexibility.

Second, high-definition monitoring system 1 HD surveillance camera HD, as the name implies high-definition, English abbreviation is HD (High Definition). There are many resolution resolutions, and currently the high-definition surveillance cameras in the security industry mainly refer to digital cameras with resolutions of 720P and 1080P. The ratio of the aspect ratio is 16:9.720P or 1280*. 720 resolution, and 1080P is 1920 * 1080, which suffix "P" represents a progressive scan. For the moving object's image acquisition, relative interlacing and progressive scanning can obtain better dynamic images without smearing. Therefore, progressive scanning is more suitable for security monitoring applications.

High-definition surveillance cameras are mainly embodied in the definition of the picture. To achieve the definition of the picture, not only a horizontal resolution of 540TVL, but also some wide dynamic, automatic white balance, sharpness of the image. Adjustments, super digital noise reduction (signal-to-noise ratio), smart digital automatic metering compensation and other functions. When detecting the wide dynamic function, it is necessary to observe whether the transition between the bright area and the dark area is clear and natural, and whether the wide dynamic range can be automatically adjusted. Good cameras have rich levels and delicate performance in bright and dark areas. When looking at license plates under nighttime headlights, the outline of the headlights, filaments, and license plates are all very clear, and no bright lines appear. Low illumination requires observing whether the camera's surveillance picture is clear and how loud the noise is at night.

2 Transmission system and terminal display To obtain high-definition video, in addition to the front-end is a high-definition camera, the transmission system, intermediate system and terminal display system must meet the bandwidth and compression requirements in order to achieve high-definition practical results. Including cables, arrays, hard disk recorders, video servers, various video encoders, etc. The optical cable has large bandwidth, low attenuation, high anti-interference, and can better guarantee the image transmission.

The terminal display device preferably selects a progressive scan monitor and is more than 600 lines. Therefore, the use of high-definition cameras for light and the neglect of the selection of other ancillary equipment cannot achieve the true purpose.

Third, POE Power Over Ethernet (POE) refers to the existing Ethernet Cat. 5 In the absence of any changes to the cabling infrastructure, while powering a poe to transmit data signals to IP-based terminals (such as IP phones, wireless LAN access points APs, network cameras, etc.), it can also be used for such devices. Provides DC powered technology. POE is also referred to as Power over LAN (PoP) or Active Ethernet, sometimes also referred to as Power over Ethernet. This is the use of existing standard Ethernet transmission cables for the simultaneous transmission of data and The latest standard specification of electrical power, and maintain compatibility with existing Ethernet systems and users.

Structured cabling is the foundation of all today's data communications networks. With the development of many new technologies, today's data networks are providing more and more new applications and services: for example, where cabling is not convenient or where cabling costs are high. Wireless LAN technology (WLAN) can effectively expand existing networks, such as IP Telephony (IP Telephony) also provides users with more new and enhanced enterprise-class applications, and after September 11th, global The security market has undergone tremendous changes, directly contributing to users beginning to consider deploying as many network security cameras and other network security devices as possible on existing Ethernet networks. At present, such new applications have been increasingly accepted by users and have been rapidly developed.

All these devices that support new applications need to install additional AC power supply devices. In particular, wireless LANs such as APs and IP network cameras are located far away from the central computer room, which further increases the cost of the entire network. In order to make it as easy as possible and minimize costs, the IEEE Institute of Electrical and Electronic Engineers approved a new Power Over Ethernet (PoE) IEEE 802.3af in June 2003 to ensure that users can use existing ones. Structured cabling provides power for such new application devices.

With the widespread use of network cameras (IPCs), as a practical and efficient power transmission method, POE technology has entered the stage of security and received strong market attention. POE technology can ensure the safety of existing structured cabling Ensure the normal operation of existing networks and minimize costs. It can be predicted that the application of POE technology in the field of network cameras will greatly promote the development and maturity of the network camera market.

Conclusion Cloud computing, high-definition monitoring, and POE power supply are the new technologies and development directions of control systems, image processing, and transmission systems, respectively. We believe that new products using these technologies can be seen shining at the upcoming US security exhibition in western regions. Debut.