Integrated intelligent monitoring system of vehicle-mounted multiple cold accumulation boxes

Abstract

The invention discloses an integrated intelligent monitoring system of vehicle-mounted multiple cold accumulation boxes. The integrated intelligent monitoring system comprises a group of cold accumulation boxes and is characterized in that a temperature and humidity sensor is respectively arranged in each cold accumulation box, each temperature and humidity sensor is connected to a temperature and humidity recording meter, and the temperature and humidity recording meter is connected with an antenna and a cold storage car refrigeration control system. Each temperature and humidity sensor is used for collecting the temperature and the humidity of each cold accumulation box, the temperature and the humidity are transmitted to a controller through a wiring interface of each temperature and humidity sensor, the received temperature and humidity values are analyzed by the controller, when the temperature and humidity values exceed the preset temperature and humidity, a system warning indicating lamp warns, in addition, warning information are transmitted to the cold storage car refrigeration control system through a warning signal switching value output module, a display screen is used for displaying the temperature and humidity of the cold accumulation boxes and the number of the accumulation boxes, a clock module provides standard clock signals for a system, and a Micro secure digital (SD) card arranged in a Micro SD card slot is used for storing the temperature and humidity values collected by the temperature and humidity sensors.

Description

technical field [0001] The invention relates to a temperature and humidity monitoring system for cold storage boxes, in particular to a centralized intelligent monitoring system for multiple cold storage boxes on a vehicle. Background technique [0002] When using cold storage boxes to transport products, especially fresh agricultural products, it is necessary to record the influence of temperature and humidity of cold storage boxes on the quality of fresh agricultural products during transportation; understand the different changes of temperature and humidity of cold storage boxes in different positions in refrigerated transport vehicles during transportation. This requires real-time recording of the temperature and humidity data of multiple cold storage boxes. [0003] Most of the current temperature and humidity monitoring systems use a temperature and humidity recorder to monitor only one cold storage box, and cannot monitor multiple cold storage boxes at the same time,...

AI Technical Summary

Problems solved by technology

Obviously, the wired method is not suitable or very inconvenient for the vehicle-mounted cold storage box, because it either requires an on-board computer, or the entire temperature and humidity recorder must be moved to the computer

For the wireless method, on the one hand, the real-time temperature and humidity data of multiple cold storage boxes are sent wirelessly, the data volume is large, the energy consumption is high, and the communication cost is high; on the other hand, the temperature and humidity of the cold storage boxes are usually within the specified range, and it is not necessary send to remote computer

[0004] There are only wireless temperature and humidity monitoring systems based on zigbee or radio frequency chips, which can monitor multiple cold storage boxes at the same time. Large power consumption; high requirements for controller capability and high cost

They also have the above-mentioned shortcomings of being unsuitable for vehicles or high energy consumption and high communication costs when transmitting monitoring data to computers.

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