Grain condition monitoring system based on wireless Ad Hoc network

Abstract

The invention provides grain condition monitoring system based on a wireless Ad Hoc network, which is high in efficiency and convenient for installation and maintenance. According to the system, grain condition data sensors are connected together in granaries through a one-line bus, and outside of the granaries, all granaries in a whole grain storage station are interconnected through a wireless sensor network with the Ad Hoc network and self-healing property. A gateway node in the wireless Ad Hoc network is provided with a GPRS (General Packet Radio Service) network interface or an LAN (local area network) interface which can be accessed to a VPN (Virtual Private Network) so as to collect grain condition data of a plurality of grain storage stations to a grain condition public data platform in a grain system.

Description

technical field [0001] The method of the invention relates to a wireless ad hoc network, in particular to a grain situation monitoring system based on the wireless ad hoc network. Background technique [0002] In the process of food storage, changes in the environment (temperature, humidity, moisture, etc.) directly affect the quality of the food. Improper storage will cause a lot of food waste. Therefore, the grain monitoring system plays an important role in grain storage. [0003] At present, there are mostly two kinds of grain situation monitoring systems. One is to use temperature measuring rods, which is almost completely manual query, which has no advantages; the other is to use wired methods to connect each granary to the monitoring center. This method There are the following defects: the RS485 bus has high requirements on the quality of communication cables, which greatly increases the cost; once a lightning strike occurs in the cable connection, it is easy to caus...

AI Technical Summary

Problems solved by technology

[0003] At present, there are mostly two kinds of grain situation monitoring systems. One is to use temperature measuring rods, which is almost completely manual query, which has no advantages; the other is to use wired methods to connect each granary to the monitoring center. This method There are the following defects: the RS485 bus has high requirements on the quality of communication cables, which greatly increases the cost; once a lightning strike occurs in the cable connection, it is easy to cause damage to a large area or even the entire grain monitoring and control system; communication cables are easy to age, Requires high replacement and maintenance costs

Images