With the rapid development of the alarm market and the continuous expansion of network alarms, alarm platform users, especially networked alarm centers, need to obtain the real-time status of all types of events on the user side of the alarm host. At the same time, they can remotely control or even program front-end alarm panels. Needs.
The alarm center must verify after receiving the alarm information, and send someone to handle it. Dealing with a large number of false alarm information in the alarm center requires huge manpower and material resources. Therefore, the combination of the alarm platform and video technology, that is, the alarm center's ability to possess alarm video review technology, is put on the agenda. The alarm platform is in close contact with other related industries and platforms. It is necessary to connect and integrate the relevant interfaces. The customer needs the alarm platform to provide a complete and rich external interface for the secondary development and integration.
Application of new alarm platform technology
Application of network technology
For the networked alarm center platform, the use of telephone lines for alarm information transmission has been used for nearly 20 years. This type of communication method results in slow information transmission speed. It takes almost 20 seconds for the alarm information to be sent from the front-end alarm host to the alarm center. The remote control operation is performed on the front-end alarm host at the alarm center. In addition, with the upgrading of telephone network and telephone exchanges, the traditional way of sending alarm information based on DTMF audio often leads the alarm center to receive no alarm signal.
At the same time, for the alarm management platform of a single building, the traditional way of connecting the alarm host to the alarm platform computer through the serial port is limited by the short distance of the serial port, which cannot be expanded and the failure rate is high. With the rapid development of communications technology, fiber ADSL/GPRS/3G technology is widely used, but also provides new technical means for the transmission of alarm information, handling of police, and nuclear police. Application network for alarm communication, the distance between the alarm host and the alarm platform can be unlimited, and achieve high-speed transmission of information; also rely on the network, the remote platform can directly control and operate the host, greatly improving the reliability of the alarm management system Sex, safety, and ease of use.
The network digitalization introduces the alarm platform, which mainly refers to the ability of the front-end alarm control host and the alarm platform to form a network communication transmission. The alarm platform can also be infinitely extended and extended through the network, forming a multi-level alarm platform networking and forwarding, making the alarm system management level, and improving the management efficiency of the alarm platform.
The network technology introduces the alarm, but also brings some hidden troubles on the network, such as the virus on the network, the Trojan horse threat, the network monitor simulates the real alarm equipment, carries on the high-tech crime. Of course, the network will not stop the application and development because of these hidden dangers. Some companies have already applied network security technologies to hardware devices and alarm platforms. For example, network communications use encryption technology to set communication protocols to prevent people from performing simulated damage. The use of gatekeepers and related equipment technologies to prevent network virus, Trojans and other attacks.
Video review technology application
All along, the most troublesome alarm center is the problem of false alarms generated by front-end detectors. There are many reasons for false alarms in the network monitoring of the security industry, such as damage to components and poor production processes, selected equipment, installation methods, and angles. Improper positioning can also lead to false alarms, such as the installation of the equipment close to the source (airfield, railroad); environmental impacts, such as air movement, pets, etc.; and human factors, mainly due to improper operation of the user, accidentally triggered the alarm Devices, mistakes, and mistakenly entered defense zones have all kept the false alarm rate of the entire security system high. In the current stage, it is not allowed to allow a missed report to occur. It is inevitable that a false alarm is generated. There are related data showing that more than 95% of the generated alarm information is false alarm.
Alarms often cause unnecessary troubles for security officers and users, affecting their normal work and life. The information received by the center needs to be verified. The traditional situation is that some experienced alarm personnel judge according to the information after the alarm, or contact the user by telephone to determine whether there is a real alarm. If there is no remote verification method, police personnel must be arranged to the scene to determine whether the alarm is true. On the one hand, real alarm may be missed, on the other hand, a lot of time, manpower and material resources will be wasted. The heavier consequence is that, over time, frequent misreporting will cause the police and security personnel to lose their sense of urgency, and may eventually become a big disaster because of paralysis.
At present, the video surveillance system, alarm system and other subsystems in the entire security system are independent of each other and cannot meet the needs of overall security management. The user must implement the 'integration and integration' management of the security system to achieve the mutual linkage of the entire security system, so that the entire security system becomes an organic whole, it is necessary to put the most important and most closely related alarm subsystem in the security system and The video review subsystems are combined to fully enhance the technical protection level and management level of enterprise-level security. Therefore, the alarm video review technology, that is, the combination of the alarm system and the video system is unified.
The application of video composite technology in the alarm platform is actually sending alarm information to the video platform, and then implementing the alarm linkage video function according to the preset configuration relationship: alarm linkage real-time playback of video images, alarm linkage centralized recording, alarm linkage on the wall display , Alarm linkage terminal display, alarm linkage visual intercom, alarm linkage plan display, alarm linkage PTZ set.
Future trends
Network digitization, visualization and other technologies have gradually begun to be used in alarm platforms, but the needs of customers have not been widely recognized and practiced. Some networked alarm centers have begun to propose alarm platforms in addition to traditional alarm receiving, verification, processing, user management, statistical inquiry, host device management and control, remote video review and many other multi-functional requirements, the alarm platform should also have some enterprise management The functions, especially those that can be combined with the company's financial management, information management, office management systems, or with some interfaces can be connected. Of course, these requirements are still relatively vague or incomplete, and various manufacturers are also exploring the process.
Although the current alarm platform can already implement hierarchical management and layout, from the perspective of the overall market development, the alarm platform should be subdivided, and more types of platforms suitable for different markets or industries can be produced for different scales and applications in different fields.
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