Wireless grain situation measuring and control sensor node positioning system

Abstract

The invention discloses a wireless grain situation measuring and control sensor node positioning system, which comprises a grain situation measuring and control host, grain situation measuring and control extensions, an assistant positioning route and sensor nodes, wherein the grain situation measuring and control host is arranged in a control room; the grain situation measuring and control extensions and the assistant positioning route are respectively arranged in different positions in each granary; the sensor nodes are spliced in grains in each granary in a rectangular array distribution manner; the grain situation measuring and control host and the grain situation measuring and control extensions are in bidirectional wireless communication; and the grain situation measuring and control extensions are in bidirectional wireless communication with the assistant positioning route and the sensor nodes respectively. According to the system, an installation process of equipment is saved, the expenditure for purchasing a thermometric cable is saved, the equipment maintenance cost is reduced, and the positioning is safer and more reliable.

Description

technical field [0001] The invention belongs to the technical field of sensor node positioning systems, in particular to a sensor node positioning system for wireless grain situation measurement and control. Background technique [0002] The national grain reserve is the foundation of the national strategic reserve. The national grain reserve is responsible for the safe storage of grain. Timely monitoring of grain information such as grain temperature and humidity plays a vital role in safe grain storage. my country is a large agricultural country, and there is a very large demand for grain reserves in various regions of our country. The National Grain Reserve Bank also has reserve depots all over the country. Although the moisture content of the grain stored in the warehouse is relatively small, the accumulated grain will still undergo respiration to release heat and moisture. If it is not handled in time, the grain will be moldy Mutated and moth-eaten. By monitoring the ...

AI Technical Summary

Problems solved by technology

[0004] However, the solution used at this stage is to use cables to connect the sensors and extensions. Because the area of ​​the grain depot is large, a long temperature measurement cable is required, which not only greatly increases the cost of the cable, but also is not easy to install and very inconvenient to operate.

At the same time, because it is a single-bus method, many sensors need to be packaged into a thick protective sleeve for anti-corrosion. The length of the cable and the number of internal sensors need to be customized, which prolongs the construction period.

More importantly, if a sensor inside a temperature measurement cable is damaged, the entire temperature measurement cable needs to be replaced, which greatly increases the maintenance cost, and requires professional maintenance personnel to replace it, and the operation and maintenance costs are relatively high

Images