One-time tamper-proof RFID temperature and humidity recording and transmitting device for cold-chain logistics

Abstract

The invention relates to a one-time tamper-proof RFID temperature and humidity recording and transmitting device for cold-chain logistics. The one-time tamper-proof RFID temperature and humidity recording and transmitting device for the cold-chain logistics comprises a CPU, a sensing unit, a storage unit, an opening unit, an open circuit trigger unit, a RFID communication unit and a power supply. The CPU is respectively connected with the sensing unit, the storage unit, the opening unit, the open circuit trigger unit, the RFID communication unit and the power supply. When the opening unit is opened, the CPU controls the sensing unit to begin to gather temperature and humidity information, wherein the temperature and humidity information is stored through the storage unit, the CPU detects and judges whether open circuit signals sent by the open circuit trigger unit are received or not in real time, if the open circuit signals are received, the CPU controls the sensing unit to stop gathering the temperature and humidity information, and meanwhile controls the RFID communication unit to be opened to send previously-gathered temperature and humidity data to an upper computer, and if the open circuit signals are not received, the CPU continues to detect whether the open circuit signals are received or not. Compared with the prior art, the one-time tamper-proof RFID temperature and humidity recording and transmitting device for the cold-chain logistics has the advantages that the temperature and humidity data can be automatically gathered, temperature and humidity data are objective, accurate and tamper-proof, and data gathering safety can be improved.

Description

technical field [0001] The invention relates to a temperature and humidity recording and transmission device, in particular to a one-time tamper-proof RFID temperature and humidity recording and transmission device for cold chain logistics. Background technique [0002] For temperature-sensitive food and pharmaceuticals, especially biological products, we need to manage them through "cold chain logistics", so the control and measurement records of temperature and humidity of cold chain equipment are crucial. Overheated food and biological products will not only cause economic losses and waste to related production and sales enterprises, but more serious consequences will threaten the health and even lives of consumers. Food and drug authorities around the world, including China, have strict laws and regulations on the temperature supervision of food and drug cold chain logistics. At this stage, most enterprises related to cold chain items, such as production, processing, tr...

AI Technical Summary

Problems solved by technology

However, the supply chain contains many uncertain factors, especially in the transportation link. Delays or early delivery times occur from time to time, and the driver who is the real user is often not the programmer of the instrument. Changes in the delivery time will lead to Logging useless data early and wasting battery, or losing some necessary data

In addition, the existing temperature and humidity collection devices used in the cold chain are generally unsafe to collect data, and some data are processed and tampered with, which makes it impossible for the cold chain item supervision department to obtain real temperature and humidity data, thus bringing great harm to manufacturers and consumers. Great harm and loss come

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