Wireless sensor network-based refrigerator truck monitoring system

Abstract

The invention relates to a wireless sensor network-based refrigerator truck monitoring system. The system comprises a vehicular terminal and a monitoring management center, which communicate with each other through a general packet radio service (GPRS) network. The vehicular terminal comprises a communication aggregator, a group of monitoring modules and a power supply for supplying power, wherein each monitoring module is arranged in a refrigeration area of a refrigerator truck; the communication aggregator is arranged in a cab; each monitoring module comprises a temperature and humidity sensor; and the communication aggregator comprises a GPRS module, a display module and a control module connected with the GPRS module and the display module respectively. The monitoring management center comprises a monitoring terminal and a server, which are connected with each other. Each of the monitoring modules and the communication aggregator comprises a radio frequency transceiver module. Each monitoring module communicates with the communication aggregator through a wireless network. The system is simple in structure and convenient to implement, and the temperature and humidity of the refrigeration area in the refrigerator truck can be monitored in real time in the logistics process of the refrigerator truck.

Description

technical field [0001] The invention relates to a monitoring system for a refrigerated vehicle based on a wireless sensor network. Background technique [0002] With the improvement of people's living standards and the acceleration of the pace of life, the demand for frozen and refrigerated food is getting higher and higher, resulting in a greatly increased demand for refrigerated vehicles. Unnecessary delays occurred during transportation. In order to save transportation costs, some refrigerated truck drivers did not transport according to the specified transportation temperature and humidity conditions, resulting in food deterioration. appears to be crucial. In the existing monitoring of refrigerated trucks, electrical signal connecting wires are often used to connect various devices, which will bring inconvenience to the assembly of the entire monitoring system, and the connecting wires will be aging due to long-term use, resulting in the failure of the entire monitoring...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards and the acceleration of the pace of life, the demand for frozen and refrigerated food is getting higher and higher, resulting in a greatly increased demand for refrigerated vehicles. Unnecessary delays occurred during transportation. In order to save transportation costs, some refrigerated truck drivers did not transport according to the specified transportation temperature and humidity conditions, resulting in food deterioration. appear crucial

In the existing monitoring of refrigerated trucks, electrical signal connecting wires are often used to connect various devices, which will bring inconvenience to the assembly of the entire monitoring system, and the connecting wires will be aging due to long-term use, resulting in the failure of the entire monitoring system. It works normally, and the setting brings safety hazards. Because the connecting wires located in the refrigerated area of ​​the refrigerated truck are also affected by the environment, the aging of the connecting wires will be accelerated and the service life will be reduced.

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