Wireless video surveillance is not susceptible to wired networks and can achieve networked video surveillance across difficult-to-route areas. Therefore, the use of wireless mesh networking technology to build a security-oriented IoT platform is an inevitable choice for building an intelligent visual Internet of Things. The advantage of the wireless Mesh mesh network introduced in this paper lies in the strong anti-interference ability, strong ability of moving through the middle, and it is worth the attention of security system integrators.
First, wireless network technology is one of the essential technologies for the formation of monitoring systems. The monitoring system is mainly used for monitoring and control of important areas. The video monitoring technology is already in the power system, telecommunications room, factories, urban transportation, water conservancy systems, and community security. And Other fields have been more and more widely used. The video monitoring system will timely transmit the video files collected by the monitoring points to the monitoring center in real time, dynamically report the monitored points in real time, and promptly identify and handle the problems. For example, video surveillance systems need to be installed in power system substations and telecommunication industry unattended facilities. Under normal circumstances, because the monitoring points are distributed in a wide range and are far away from the monitoring center, traditional wire connections are used, the cost of laying the wires is high, and the construction period is long, or it is difficult to set up cables because of physical factors. If you encounter obstacles such as rivers and mountains.
The rise and development of Internet of Things technology also breaks the narrow field of traditional video surveillance. On the one hand, it introduces a deeper, higher level of information management, establishes a shared management platform, and solves the interoperability between departments. The problem is that on the other hand, the Internet of Things will enable the original security monitoring system to rise to a more intelligent level. Whether it is the collection, management or application of video, especially the high-speed dome cameras in surveillance cameras adopt a comprehensive intelligent system, Handle more effectively with smart technology. The development of the Internet of Things concept will enable video surveillance to move toward the direction of intelligence, digitization, and information.
At this point, the comprehensive application of IoT technology in the field of social public security has gradually matured. Video surveillance technology is an important part of the Internet of Things technology and has become the main means of security.
Second, the use of wireless technology to build a wireless Mesh network monitoring platform for Internet of Things, to achieve large-scale wireless monitoring network. Different from wired monitoring, a wireless mesh network can also carry other services such as wireless acquisition and wireless voice, and is a comprehensive multi-service platform. Mesh system has the characteristics of fast switching between network nodes, which can provide efficient and reliable solution for network deployment in high-speed mobile environment. This also makes mobile video surveillance under high-speed mobility possible.
The Mesh-based Access/One wireless network supports a completely wireless network construction and can quickly set up a wireless network. It is highly mobile and deploys rapidly. Compared with traditional wired and wireless network technologies, it is greatly reduced. The initial installation and deployment costs; only need to add new Strix wireless node devices at the edge of the network, can meet the network expansion requirements, therefore, effectively reduce the operation and maintenance costs after the completion of the network and network expansion and upgrade costs.
1. Introduction to Networking Technology The StrixMesh wireless networking solution is used to achieve metropolitan area wireless network coverage and provides broadband wireless access to fixed monitoring, mobile monitoring, and emergency monitoring.
The outdoor wireless base station seamlessly covers the area to ensure that the wireless camera is in a wireless connection state during the operation, and the transmission of the video signal is not interrupted. Public security and emergency workers can use broadband wireless networks to remotely inquire camera monitoring information and improve the efficiency of wireless network usage.
Strix's Wireless Mesh Network can assist local government departments in improving the efficiency and reliability of business operations, thereby providing municipal staff and citizens with quality services. Eliminating the communication gap between the public security sector and the communities they serve and extending vital information and services to the entire community. Provides robust and secure wireless solutions for law enforcement and emergency services to meet the needs of vehicles and control centers, rapid emergency response, monitoring and data exchange.
Wireless Mesh units can be installed on public and municipal buildings, on street-side light poles or dedicated poles, at traffic signal crossings and billboards, etc.; via the cellular mesh networking feature of StrixMesh, Successfully and quickly formed wireless network coverage for larger areas.
The Mesh network built by the StrixAccess/OneNetwork system removes the need for routing between nodes, but still has the redundancy mechanisms and rerouting capabilities provided by the distributed network.
2. Video Surveillance Equipment Selection (1) IP Camera (2) Video Encoder Plus Analog Camera Both video surveillance devices have a 10/100M Ethernet line interface. There are two ways to set up video surveillance points:
(1) The video surveillance point is directly connected to the outdoor base station using a 10/100M Ethernet cable.
(2) The video surveillance point is connected to the wireless CPE using a 10/100M Ethernet cable, and the video is transmitted back through the high-speed wireless link between the wireless CPE and the outdoor base station.
The transmission distance between the wireless CPE and the outdoor base station can be as high as 2km, which ensures that the video surveillance can be obtained in the area of ​​2km radius around each base station. Even through video surveillance heads that are temporarily erected, video surveillance is performed on the construction sites that need to be dispatched.
The flexible installation and implementation of outdoor base stations and wireless CPE also brings great flexibility and portability to network construction. For example, with the continuous construction of highways or railways, the wireless network can be completely moved from a 50km section to another 50km section, and only need to provide power and fix the equipment antenna on the high pole, thus providing a fast group. The advantages of network and temporary networking.
3, mobile video surveillance Mobile video surveillance fully reflects the StrixMesh network supports high-speed mobility and fast switching characteristics. A video surveillance point and an outdoor base station (OWS2400-10) are installed on the mobile vehicle, and the two are connected by an Ethernet cable. When the vehicle moves at a high speed along the wireless Mesh base station coverage, the vehicle-mounted wireless base station can quickly switch to ensure uninterrupted upload of video information.
StrixAccess/One adopts a revolutionary Mesh (mesh mesh) technology and uses wireless cascaded communication between nodes. At the same time, each node can be connected with other nodes in a point-to-multipoint manner. There is no limit on the number of hops for wireless cascading. In this way, StrixAccess/One can build a network with a mesh structure. Each node in the network has more than one wireless uplink link, which provides high redundancy and guarantees high availability of wireless transmission services.
4. Wireless Mesh networking features (1) StrixMesh supports a wide range of indoor and outdoor wireless video surveillance networking, with great flexibility and scalability;
(2) StrixMesh Wireless Video Surveillance Solution provides multiple solutions such as fixed surveillance, mobile surveillance, and temporary surveillance to meet the video surveillance requirements in various scenarios;
(3) StrixMesh network is stable and reliable, with automatic adjustment and automatic link healing.
5. Advantages of Wireless Mesh Networking (1) Wireless Mesh networks support point-to-point, point-to-multipoint, mesh networking, and other topologies;
(2) Scale wireless networks supporting large-scale networks, ranging from tens of square kilometers to hundreds of square kilometers;
(3) Industry-leading high-performance networking, providing multiple 802.11a wireless modules for wireless backhaul and aggregation infrastructure, ensuring that the bandwidth loss per hop wireless network is less than 10%;
(4) The multi-sector provides the overall network performance. The multi-sector networking technology (3 sectors, 6 sectors, etc.) is used at the fiber point location to fully inject the bandwidth resources of the fiber point into the wireless Mesh network.
(5) Strong anti-interference ability, using the smart frequency scanning and multi-frequency point planning capabilities of StrixOWS equipment to avoid interference problems in wireless Mesh network systems; cooperate with sectors and directional antennas to reduce Mesh relay links and wireless backhaul Point of opportunity for external interference;
(6) Support roaming and handover of WiFi handheld devices under low-speed movement;
(7) Strix car nodes can support high-speed movement and switching at 240 km/h. Vehicle nodes support high performance and high security networking and support multiple VLAN functions;
(8) Multi-layered networking, where the wireless mesh network consists of three layers, forming a three-dimensional, hierarchical distributed wireless mesh network architecture;
(9) The Mesh Convergence Layer at the height of the towers of an infinite building.
Conclusion The Internet of Things is known as the third wave of the world's information industry after computers and the Internet. The Internet of Things makes full use of the next-generation IT technology in all walks of life. Specifically, it embeds and equips sensors into various objects such as power grids, railways, bridges, tunnels, highways, buildings, water supply systems, dams, oil and gas pipelines, and then integrates the Internet of Things with the existing Internet. The integration of human society and physical systems is realized. In this integrated network, there is a super-powerful central computer group that can realize real-time management and control of people, machines, equipment, and infrastructure in the integrated network. On this basis, mankind can manage production and life in a more refined and dynamic manner, achieve wisdom, increase resource utilization and productivity, and improve the relationship between man and nature. Wireless video surveillance is not affected by the wired network and can achieve networked video surveillance across difficult-to-route areas. It is therefore an inevitable choice for building intelligent visual Internet of Things.
First, wireless network technology is one of the essential technologies for the formation of monitoring systems. The monitoring system is mainly used for monitoring and control of important areas. The video monitoring technology is already in the power system, telecommunications room, factories, urban transportation, water conservancy systems, and community security. And Other fields have been more and more widely used. The video monitoring system will timely transmit the video files collected by the monitoring points to the monitoring center in real time, dynamically report the monitored points in real time, and promptly identify and handle the problems. For example, video surveillance systems need to be installed in power system substations and telecommunication industry unattended facilities. Under normal circumstances, because the monitoring points are distributed in a wide range and are far away from the monitoring center, traditional wire connections are used, the cost of laying the wires is high, and the construction period is long, or it is difficult to set up cables because of physical factors. If you encounter obstacles such as rivers and mountains.
The rise and development of Internet of Things technology also breaks the narrow field of traditional video surveillance. On the one hand, it introduces a deeper, higher level of information management, establishes a shared management platform, and solves the interoperability between departments. The problem is that on the other hand, the Internet of Things will enable the original security monitoring system to rise to a more intelligent level. Whether it is the collection, management or application of video, especially the high-speed dome cameras in surveillance cameras adopt a comprehensive intelligent system, Handle more effectively with smart technology. The development of the Internet of Things concept will enable video surveillance to move toward the direction of intelligence, digitization, and information.
At this point, the comprehensive application of IoT technology in the field of social public security has gradually matured. Video surveillance technology is an important part of the Internet of Things technology and has become the main means of security.
Second, the use of wireless technology to build a wireless Mesh network monitoring platform for Internet of Things, to achieve large-scale wireless monitoring network. Different from wired monitoring, a wireless mesh network can also carry other services such as wireless acquisition and wireless voice, and is a comprehensive multi-service platform. Mesh system has the characteristics of fast switching between network nodes, which can provide efficient and reliable solution for network deployment in high-speed mobile environment. This also makes mobile video surveillance under high-speed mobility possible.
The Mesh-based Access/One wireless network supports a completely wireless network construction and can quickly set up a wireless network. It is highly mobile and deploys rapidly. Compared with traditional wired and wireless network technologies, it is greatly reduced. The initial installation and deployment costs; only need to add new Strix wireless node devices at the edge of the network, can meet the network expansion requirements, therefore, effectively reduce the operation and maintenance costs after the completion of the network and network expansion and upgrade costs.
1. Introduction to Networking Technology The StrixMesh wireless networking solution is used to achieve metropolitan area wireless network coverage and provides broadband wireless access to fixed monitoring, mobile monitoring, and emergency monitoring.
The outdoor wireless base station seamlessly covers the area to ensure that the wireless camera is in a wireless connection state during the operation, and the transmission of the video signal is not interrupted. Public security and emergency workers can use broadband wireless networks to remotely inquire camera monitoring information and improve the efficiency of wireless network usage.
Strix's Wireless Mesh Network can assist local government departments in improving the efficiency and reliability of business operations, thereby providing municipal staff and citizens with quality services. Eliminating the communication gap between the public security sector and the communities they serve and extending vital information and services to the entire community. Provides robust and secure wireless solutions for law enforcement and emergency services to meet the needs of vehicles and control centers, rapid emergency response, monitoring and data exchange.
Wireless Mesh units can be installed on public and municipal buildings, on street-side light poles or dedicated poles, at traffic signal crossings and billboards, etc.; via the cellular mesh networking feature of StrixMesh, Successfully and quickly formed wireless network coverage for larger areas.
The Mesh network built by the StrixAccess/OneNetwork system removes the need for routing between nodes, but still has the redundancy mechanisms and rerouting capabilities provided by the distributed network.
2. Video Surveillance Equipment Selection (1) IP Camera (2) Video Encoder Plus Analog Camera Both video surveillance devices have a 10/100M Ethernet line interface. There are two ways to set up video surveillance points:
(1) The video surveillance point is directly connected to the outdoor base station using a 10/100M Ethernet cable.
(2) The video surveillance point is connected to the wireless CPE using a 10/100M Ethernet cable, and the video is transmitted back through the high-speed wireless link between the wireless CPE and the outdoor base station.
The transmission distance between the wireless CPE and the outdoor base station can be as high as 2km, which ensures that the video surveillance can be obtained in the area of ​​2km radius around each base station. Even through video surveillance heads that are temporarily erected, video surveillance is performed on the construction sites that need to be dispatched.
The flexible installation and implementation of outdoor base stations and wireless CPE also brings great flexibility and portability to network construction. For example, with the continuous construction of highways or railways, the wireless network can be completely moved from a 50km section to another 50km section, and only need to provide power and fix the equipment antenna on the high pole, thus providing a fast group. The advantages of network and temporary networking.
3, mobile video surveillance Mobile video surveillance fully reflects the StrixMesh network supports high-speed mobility and fast switching characteristics. A video surveillance point and an outdoor base station (OWS2400-10) are installed on the mobile vehicle, and the two are connected by an Ethernet cable. When the vehicle moves at a high speed along the wireless Mesh base station coverage, the vehicle-mounted wireless base station can quickly switch to ensure uninterrupted upload of video information.
StrixAccess/One adopts a revolutionary Mesh (mesh mesh) technology and uses wireless cascaded communication between nodes. At the same time, each node can be connected with other nodes in a point-to-multipoint manner. There is no limit on the number of hops for wireless cascading. In this way, StrixAccess/One can build a network with a mesh structure. Each node in the network has more than one wireless uplink link, which provides high redundancy and guarantees high availability of wireless transmission services.
4. Wireless Mesh networking features (1) StrixMesh supports a wide range of indoor and outdoor wireless video surveillance networking, with great flexibility and scalability;
(2) StrixMesh Wireless Video Surveillance Solution provides multiple solutions such as fixed surveillance, mobile surveillance, and temporary surveillance to meet the video surveillance requirements in various scenarios;
(3) StrixMesh network is stable and reliable, with automatic adjustment and automatic link healing.
5. Advantages of Wireless Mesh Networking (1) Wireless Mesh networks support point-to-point, point-to-multipoint, mesh networking, and other topologies;
(2) Scale wireless networks supporting large-scale networks, ranging from tens of square kilometers to hundreds of square kilometers;
(3) Industry-leading high-performance networking, providing multiple 802.11a wireless modules for wireless backhaul and aggregation infrastructure, ensuring that the bandwidth loss per hop wireless network is less than 10%;
(4) The multi-sector provides the overall network performance. The multi-sector networking technology (3 sectors, 6 sectors, etc.) is used at the fiber point location to fully inject the bandwidth resources of the fiber point into the wireless Mesh network.
(5) Strong anti-interference ability, using the smart frequency scanning and multi-frequency point planning capabilities of StrixOWS equipment to avoid interference problems in wireless Mesh network systems; cooperate with sectors and directional antennas to reduce Mesh relay links and wireless backhaul Point of opportunity for external interference;
(6) Support roaming and handover of WiFi handheld devices under low-speed movement;
(7) Strix car nodes can support high-speed movement and switching at 240 km/h. Vehicle nodes support high performance and high security networking and support multiple VLAN functions;
(8) Multi-layered networking, where the wireless mesh network consists of three layers, forming a three-dimensional, hierarchical distributed wireless mesh network architecture;
(9) The Mesh Convergence Layer at the height of the towers of an infinite building.
Conclusion The Internet of Things is known as the third wave of the world's information industry after computers and the Internet. The Internet of Things makes full use of the next-generation IT technology in all walks of life. Specifically, it embeds and equips sensors into various objects such as power grids, railways, bridges, tunnels, highways, buildings, water supply systems, dams, oil and gas pipelines, and then integrates the Internet of Things with the existing Internet. The integration of human society and physical systems is realized. In this integrated network, there is a super-powerful central computer group that can realize real-time management and control of people, machines, equipment, and infrastructure in the integrated network. On this basis, mankind can manage production and life in a more refined and dynamic manner, achieve wisdom, increase resource utilization and productivity, and improve the relationship between man and nature. Wireless video surveillance is not affected by the wired network and can achieve networked video surveillance across difficult-to-route areas. It is therefore an inevitable choice for building intelligent visual Internet of Things.
Sodium Tripolyphosphate,Sodium Hexameta Phosphat Co., Ltd. , http://www.chphosphate.com