Underground Wireless Data communication solutions

With the rapid development of wireless communication technology, IoT communication technology is used in more and more industries, wireless data acquisition technology is more and more widely used in various IoT industries, such as power, energy, water conservancy, environmental monitoring and protection, fire fighting, public safety and other fields.

With the rapid development of urban construction, high-rise residential and high-rise office building more and more, building basement as a living and Civil air defense project an important area. Many of the meters, water meters and gas meters used in the life are installed in the basement, and the basement environment needs to be monitored in real-time, which requires the installation of various collection equipment in the basement center to collect data from the basement.

The current data collection methods are mainly divided into two kinds: wired acquisition and wireless acquisition. The cable data acquisition delay is small, but the cable acquisition has a major flaw is the wiring trouble, poor expansibility, high cabling costs, not conducive to the use of the basement; Wireless acquisition is not restricted by the wiring can be installed arbitrarily, scalability is good, but because the installation in the basement location mobile phone signal is quite weak, more cases is the blind spot of the signal, There is no way to meet the normal communication needs, basement wireless network coverage has become the difficulties of each operator.

This paper describes the existing wireless data acquisition scheme in the basement, and puts forward a new solution for the basement wireless collection.

1, the ground floor because there is no cell phone signal, the first use of Xiamen for the development of ZigBee equipment after the network, the data to a layer of Wbee Coordinator node.

2, Wbee Coordinator node connected to the DTU device, by receiving the basement Wbee routing node sent over the data, and through the Wbee coordinator of the data collection, while data transmission to the DTU device.

3, DTU Connection Center, DTU received the Wbee coordination node sent over the data, to be packaged over the Internet to send the designated data collection center.

Underground Wireless Data communication solutions