Multi-temperature-zone refrigerator car temperature and humidity monitoring system and method

Abstract

The invention relates to a multi-temperature-zone refrigerator car temperature and humidity monitoring system and method. The multi-temperature-zone refrigerator car temperature and humidity monitoring system comprises a data acquisition module and a data aggregation module, wherein the data acquisition module is installed on the car wall of a multi-temperature-zone refrigerator car, the data acquisition module comprises at least one data acquisition unit, each data acquisition unit comprises a microprocessor, a temperature and humidity sensor and an LORA communication module, and the temperature and humidity sensor and the LORA communication module are respectively connected with the microprocessor; and the data aggregation module is installed in a cab of the multi-temperature-zone refrigerator car, the data aggregation module comprises a vehicle-mounted terminal, an LORA gateway and a satellite positioning module, the vehicle-mounted terminal is connected with the LORA communicationmodule through the LORA gateway, and the satellite positioning module is connected with the vehicle-mounted terminal. The invention further provides a monitoring method of the multi-temperature-zone refrigerator car temperature and humidity monitoring system.

Description

technical field [0001] The invention relates to a cold chain technology, in particular to a temperature and humidity monitoring system and method for multi-temperature zone refrigerated vehicles based on LORA technology. Background technique [0002] The multi-temperature zone refrigerated truck can use different temperature zones to transport goods with different temperature requirements, realizing mixed loading of goods with different temperature requirements, improving transportation efficiency and reducing transportation costs. Keeping the temperature in the effective space of the temperature zone in an appropriate range is the core of the cold chain and one of the important factors to ensure the quality of cargo transportation. The temperature and humidity of the cargo storage environment are crucial to the quality and freshness of fresh goods. The traditional detection module uses a point-to-point method to detect the temperature and humidity. The wiring harness is use...

AI Technical Summary

Problems solved by technology

The temperature and humidity of the cargo storage environment are crucial to the quality and freshness of fresh goods. The traditional detection module uses a point-to-point method to detect temperature and humidity. The wiring harness is used more, and the hardening of the wiring harness in a low temperature environment will affect the transmission of data. Therefore, the use of The wireless communication method is used to collect temperature and humidity, but in the wireless communication method, ZigBee technology has disadvantages such as high communication frequency, fast signal attenuation, and high power consumption; Wi-Fi communication has the disadvantages of limited transmission distance and high power consumption; 4G technology has disadvantages such as high cost, Disadvantages such as high power consumption

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