BITWAVE high-definition wireless surveillance system enhances campus security

Recently, school safety management has risen to an unprecedented level across the country. Premier Wen Jiabao of the State Council recently said in an interview with Hong Kong media that the government attaches great importance to the recent attacks on children and will take strong public security measures to provide children with a harmonious and safe environment. This is the most responsible statement of the highest level of the Chinese government on school safety. Security measures have been fully implemented in schools across the country, and the construction of school safety and security systems is improving day by day.

In order to prevent and deter campus crimes, reduce property losses, ensure the personal safety of student dormitories on campus, improve the school security system, and enhance the overall prevention and control capabilities of the campus, the use of advanced scientific and technological products and technologies to build a campus security system has been put on the agenda, and video surveillance is undoubtedly the most direct and effective way. In fact, in the current campus security system, the construction ratio of video surveillance systems is not high, and the surveillance systems of many primary and secondary schools and kindergartens are still under construction. Based on this, BITWAVE, a professional wireless transmission brand focusing on video surveillance, uses the most mature microwave communication product at present, the wireless bridge, and has launched an advanced high-definition campus wireless video surveillance system, which can quickly and efficiently build an advanced high-definition wireless surveillance system to meet the actual application of campus security. This is also a powerful measure to cooperate with management departments at all levels for campus security, and greatly improves the crime-solving rate, while deterring criminals.

Compared with traditional wired networks, building an advanced high-definition wireless network monitoring system on campus is the best solution. In the wireless video monitoring system for campuses, BITWAVE conducted careful field investigations on many campuses. Due to the scattered distribution of monitoring points in the campus, the use of traditional network wiring is not only very costly, but also has a long construction period, and poor scalability and flexibility. Once the monitored points need to be increased or reduced, a new construction period will be brought. In addition, the campus environment is relatively rugged and complex, wiring is difficult, and construction is relatively dangerous. The construction of a wireless network monitoring system does not need to destroy the existing campus geographical environment, does not need to lay complex optical cable routing, and does not require a lengthy construction period. Multiple monitored points can be connected to the control center, and the construction is fast. A wireless network link can be quickly established in the shortest time, and the scalability is particularly flexible. In the real campus, the campus security monitoring system covers major gate entrances and exits, student playgrounds, public places, teaching buildings, office buildings, student dormitories and other areas. The high-definition video signal is transmitted to the school monitoring center through the wireless network formed by the BITWAVE wireless bridge. At the same time, the video signal can be sent to the public security police department in real time as needed. Through the construction of the system, we can achieve security management of public areas of important monitoring points within the campus, establish a unified management command and dispatch center, realize vertical management and horizontal sharing of video information, build a campus alarm monitoring platform supported by science and technology, build an integrated public security prevention and control system of fighting, prevention and control, improve intelligent transportation, explore emergency response mechanisms for sudden incidents, and thus improve the comprehensive management level of the school.

1. Active prevention: campus prevention, control, public security and combat capabilities.

2. Rapid deployment: When an emergency occurs, the system can quickly call up cameras at the suspect scene and surrounding areas to track the suspect, which is conducive to the grasp and control of the situation at the scene.

3. Video review: Retrieve the video footage of the crime scene by time or event, collect suspect video information, and search for clues such as suspects and vehicles.

4. The system has good scalability. As the number of monitoring points increases, only the front-end equipment needs to be added and the software upgraded.

5. Users can learn about the security status of each dispersed point at any time through the computer in the monitoring center, and can conduct continuous real-time monitoring for 24 hours.

In order to ensure the excellent performance of the entire campus wireless monitoring system, the BITWAVE high-definition campus wireless network monitoring system is built on IP-based wireless OFDM microwave technology. The series of wireless products have undergone rigorous production processes and strict testing methods, and the products can operate well in any regional climate environment. This technology has experienced more than many years of development and is now very mature. The technology works within the 5Ghz frequency range permitted by the state and has good frequency resources, which can ensure that various applications of the network system are smooth and fast. BITWAVE wireless products provide a variety of security mechanisms to ensure the security of your data, and the industrial-grade design ensures that the product has a unique waterproof and dustproof design. The wireless system established on this basis has a flexible access method. The data transmission of the monitoring point is mainly wireless. The video data of each monitoring point is directly or wirelessly aggregated by each base station, and finally uniformly transmitted back to the management center. The newly established high-definition monitoring system must be completely based on the TCP/IP network for video image transmission. All transmissions between systems are digital video signals. One is to ensure the compatibility of new points and existing systems in the future, and the other is to ensure the video quality of the image. The video surveillance system should strictly comply with the safety standards of the wireless surveillance system to ensure that the transmission lines, encoding and decoding equipment and front-end probes operate stably, safely and reliably.

In the BITWAVE high-definition campus wireless monitoring solution (taking the ordinary campus environment as an example), each corner of the campus wall uses an outdoor integrated day and night network camera, and each building entrance and exit and school gate entrance and exit use a day and night 20-meter network gun camera. The monitoring and relay points that need to be explained are as follows:

1. Considering that monitoring points 9, 10, 11 in the northeast corner and monitoring points 12, 13 in the southeast corner may be blocked by the teaching buildings, a relay point is set up on the teaching building in the northeast corner to receive signals from points 7, 9, 10, 11, 12, and 13.

2. Use BWB-210CA equipment in the main center office building to cover nearby monitoring points, and build a bridge link from the relay point to the office building, using BWB-310 high-bandwidth equipment.

The entire campus wireless monitoring system is completely based on TCP/IP network for image transmission. At the same time, it is necessary to ensure that each link at the front end has a certain bandwidth margin to ensure stable data transmission and clear image requirements.

BITWAVE high-definition campus wireless monitoring system will be built into an advanced security system for the purpose of combating and preventing campus crimes. Video monitoring points will be set up at important locations such as school gates, dormitories, and campuses, and high-definition monitoring images will be transmitted to the monitoring center and other relevant departments in real time. By browsing and recording images, schools, government agencies at all levels, and other relevant functional departments can intuitively understand and grasp the normal order of the campus area, effectively improve the efficiency of campus security management, and minimize and eliminate campus safety hazards at the hardware security level.