Wireless temperature collection system

Abstract

The invention discloses a wireless temperature collection system. The wireless temperature collection system is characterized by comprising wireless temperature sensors, signal converters, a data collector and an RS-485 communication bus, wherein the wireless temperature sensors are placed in rooms of all storeys, the signal converters are placed at the top storey and the bottom storey of a building and convert wireless signals into wired signals, the data collector is placed in a monitor room, and the RS-485 communication bus is used for achieving data transmission between the data collector and the signal converters. The wireless temperature collection system has the advantages that a longitudinal data transmission mode is adopted, points are spaced only through storey cement boards irrelevant to the building structure, and the wireless transmission effect is not restrained by the housing structure; the RS-485 communication bus is added on the longitudinal wireless data transmission basis, an annular data network is formed by longitudinal wireless temperature sensor nodes through the signal converters and the RS-485 communication bus, when one certain wireless temperature sensor node breaks down, a data chain is broken, the data collector can collect data on the two sides of the broken point through the RS-485 communication bus, and the problem of wireless longitudinal communication chain break is solved effectively.

Description

technical field [0001] The invention relates to a temperature collection system, in particular to a wireless temperature collection system, belonging to the technical field of wireless sensor networks. Background technique [0002] The temperature data of each room in the building is transmitted by wireless signals. At present, the form of grid network and point-to-point handle is mostly used, that is, each point is a route. [0003] This method involves horizontal wireless communication. Due to the limited penetration of wireless to walls, this kind of communication is greatly restricted by the structure of the house. That is, as the number of walls between points increases or the wall thickness increases, the wireless communication The results are poor and data collection is often unreliable. [0004] In addition, in the horizontal wireless communication, because each point is in the form of routing and cannot sleep, it consumes a lot of power and cannot use batteries for...

AI Technical Summary

Problems solved by technology

[0003] This method involves horizontal wireless communication. Due to the limited penetration of wireless to the wall, this communication is greatly restricted by the structure of the house. That is, as the number of wall layers between points increases or the wall thickness increases, the wireless communication Poor performance, often unreliable data collection

[0004] In addition, in the horizontal wireless communication, because each point is in the form of routing, it cannot sleep, so it consumes a lot of power, and it cannot work with batteries for a long time

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