MESH Ad Hoc Network Emergency Communication
Background introduction
Long-distance WiFi module emergency communication is a special communication mechanism that provides rapid response to respond to natural or man-made emergencies, comprehensively utilize various communication resources, and ensure emergency rescue and necessary communication. When various natural disasters and emergencies threaten the safety of people’s lives and property, when normal communication cannot be guaranteed, in order to reliably and effectively carry out emergency communications and command rescue missions, a set of ultra-long-distance WiFi MESH components are self-organized The network communication system is an important guarantee for us to ensure emergency response to disasters in various emergencies.
Application requirements
In order to reduce emergencies and the casualties and losses they cause, and to protect the safety of people’s lives and property, adequate emergency preparation, monitoring and early warning, handling and rescue of emergencies are required. The unobstructed communication network is essential for the rapid emergency response of disasters, and the powerful emergency rescue capability creates miracles when a crisis occurs!
Efficient emergency communication methods play a key role, but public safety departments often face problems such as lack of on-site awareness, slow emergency response, and difficulty in department coordination. Video is becoming more and more important in the handling of public safety incidents, and visual information transmission is becoming the mainstream. Therefore, in the face of actual emergency combat needs under the new situation, according to the characteristics of emergency operations and communication support, the wireless long-distance wifi module WiFi MESH emergency communication system was launched, which integrates professional services such as video surveillance, data collection, professional broadband clusters, and emergency communications. , To achieve visual scheduling.
An Introduction
The front individual can carry a wireless long-distance wifi module WiFi mesh self-organizing network individual device, which can integrate video and voice modules, which can realize wired docking with individual headset cameras and bone conduction headphones, and can connect live audio and video The picture is transmitted to the front command platform through the self-organizing network of the individual soldier device, and then transmitted to the central platform through platform docking. At the same time, the individual soldier device has a WiFi coverage function, which can realize the interconnection and intercommunication with the individual soldier's intelligent terminal. The handheld individual soldier equipment, PAD and other equipment can be connected to the entire large network through the wifi of the mesh individual soldier device.
The site can realize the interconnection and intercommunication between the individual soldiers and the mutual communication, the interconnection and intercommunication between the individual soldiers and the on-site command platform. Network base station) realizes the interconnection and intercommunication with the central platform, and realizes a comprehensive command and dispatch system.
Program features
Strong environmental adaptability: The system can work in a non-line-of-sight environment. Adapt to the complex geographic environment under emergencies.
Wide coverage: The coverage of a single central station can reach 5-20km in a plain, medium undulating hilly or multi-building urban environment (the coverage distance is related to the antenna height of the central station); the coverage under the condition of line-of-sight transmission can be Up to 20-40km.
Strong anti-interference ability The device can automatically adjust the modulation mode and transmit power according to the channel conditions. Eliminate interference by other signals. You can also manually turn off some carriers to prevent interference with others.
Strong anti-fading ability The adopted OFDM technology has good anti-multipath fading ability. OFDM spreads a group of data through multiple sub-carriers, and the signal time on each sub-carrier is correspondingly many times longer than the signal time on a single carrier system at the same rate, making OFDM very resistant to impulse noise and fast channel fading. powerful.
Flexible networking: real plug and play. Using ultra-wireless long-distance wifi module WiFi private MESH communication protocol. Ethernet interface, transparent transmission, after connecting with the device, it can automatically network communication after power on. Easy to expand. In networking applications, you can switch between different modes according to network scale, structure, and rate requirements.
Real-time online monitoring: to achieve efficient interaction and accurate and effective command and dispatch capabilities;
Emergency alarm: quickly lock the real-time position of the alarm personnel, and give immediate and accurate response;
Multi-channel data information transmission: to ensure the smooth flow of real-time dispatch and communication between the command center and the personnel on duty;
Multi-level scheduling: Multi-level scheduling commands can be selected for emergencies to achieve rapid and accurate command and dispatch for processing.
Excellent reliability and performance: Fully consider the equipment's electromagnetic compatibility, shock resistance, temperature, humidity and other product characteristics suitable for outdoor working environments.
Easy to operate: The operation is simple and clear, no special training is required for users, the device transparently transmits Ethernet data, no additional configuration is required during use, and all network-based data can be transmitted.
Personalized customization: can provide customers with personalized multi-platform system program customization;
Failure self-checking function: the system will automatically notify the dispatching center and equipment maintenance personnel when the component fails;
Lower cost: The system is equivalent to a standard cluster mode, which is aimed at digital management of various industries and has low cost;
Convenient maintenance: Compatible with different frequency bands, various voice communications, and data access interconnection, making maintenance more convenient.
Low cost of use: When using the wireless long-distance wifi module, there is no use cost except labor.
