Emergency communication command, positioning and sensing system

Abstract

The invention provides an emergency communication command, positioning and sensing system. The system comprises communication base stations, wireless communication terminals, wireless sensors, positioning tags and a server. The communication base stations and the wireless sensors provide wireless grid network networking and signal coverage for the system. A broad-band wireless local area network is formed among the communication base stations and broad-band wireless access is provided. A narrowband sensing network is formed among the wireless sensors and narrow-band wireless access is provided. IPV6 / 6Lowpan protocol networking is used between the communication base stations and the wireless sensors. The server is connected with any one communication base station. Each wireless communication terminal accesses the communication base stations through the broad-band wireless local area network. Each positioning tag communicates with the communication base stations or the wireless sensors through the narrowband sensing network. The server issues monitoring information to the wireless sensors and the positioning tags through the communication base stations. By using the emergency communication command, positioning and sensing system provided in the invention, a narrow-band low-power-consumption advantage and a broad-band wireless communication capability of a sensing network are possessed simultaneously.

Description

technical field [0001] The invention relates to the technical fields of wireless communication and Internet of Things, in particular to an emergency communication command, positioning and sensing system. Background technique [0002] There are nearly 100 domestic invention patents related to IoT systems or methods, involving various technical systems such as RFID, Zigbee, Wi-Fi, and UWB, as well as various technologies such as communication, sensing, and positioning. [0003] For example, Chinese patent CN 102386964 A discloses an underground communication system and application based on the Internet of Things technology, including an underground roadway LAN and an aboveground data center, and the underground roadway LAN is connected to the aboveground data center through wired, wireless or wired and wireless switching , the underground roadway local area network includes personnel nodes, vehicle nodes, environmental monitoring nodes, roadway transmission and positioning nod...

AI Technical Summary

Problems solved by technology

Secondly, the system is only based on the Wi-Fi Mesh protocol. The Wi-Fi Mesh protocol has the advantages of high bandwidth and can support the transmission of multimedia voice, video, and data. However, it also has the disadvantages of complex protocols and high power consumption. In sensor networks, high power consumption will become a fatal constraint for devices such as sensors. Therefore, a simple, low-power Mesh protocol is required at the access layer

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