Cold chain article electronic tag

Abstract

The invention discloses a cold chain article electronic tag. The electronic tag comprises a protective shell, an MCU chip located in the protective shell, and a power supply module for supplying power to the MCU chip, wherein the MCU chip comprises a radio-frequency circuit, a temperature sensor circuit, a clock circuit, a read-only memory, a low-power power management circuit and a micro-control circuit integrated on a same wafer; the radio-frequency circuit communicates with a collection terminal; the temperature sensor circuit records temperature data; the clock circuit records time data; the read-only memory stores tag data; the tag data comprises an identity code used for uniquely identifying the electronic tag and preset before output, the time data recorded in real time and the temperature data synchronous with the time data; and the low-power power management circuit is used for managing power consumption information of each circuit in the MCU chip. All the circuits are designed on the same wafer, and a tag form is adopted, so that the integration level is high, few peripheral devices are used, and the size is small; each circuit enters a sleep state before being activated, so that the power consumption is low, the cost is low, and a single box body can be subjected to temperature measurement; and the tag data is fed back to the collection terminal in real time, so that the temperature of an article in a vehicle can be tracked in real time.

Description

technical field [0001] The invention relates to the field of cold chain technology, in particular to an electronic tag for cold chain items. Background technique [0002] Cold chain transportation requires that in the whole process of transportation, whether it is loading and unloading, changing transportation methods, changing packaging equipment, etc., the transported goods must always be kept at a certain temperature, and some even require a certain humidity during the process. [0003] For cold chain transportation, the traditional monitoring method is to use a temperature recorder to measure and record the temperature of the entire compartment, that is, each transport vehicle is equipped with one or more temperature recorders to measure and record the temperature during transportation. After the goods arrive at the transportation destination, connect the temperature recorder and the computer to import the data into the computer through a wired connection, and then perfo...

AI Technical Summary

Problems solved by technology

[0004] 1.) Expensive, bulky, high cost of use and maintenance, not suitable for simple use by front-line workers in all walks of life;

[0005] 2.) It is impossible to measure the temperature of a single box, basically completing the monitoring of the transport vehicle, not the monitoring of the transported items themselves;

[0006] 3.) It cannot truly reflect the temperature of the transported items themselves throughout the process, cannot automatically identify product information and requires wired connections and manual intervention to export data, and cannot track the temperature of each transported item in the vehicle in real time

[0007] In addition, the cold chain transportation industry is also faced with the problem of responsibility division. The refrigerated transportation and cold storage of cold chain transportation are controlled according to the food temperature. Operation, in this situation, the cold chain transportation link will refreeze the goods and then transport them to various stores, but once there is a problem in the store, the customer will pass the responsibility to the cold chain transporter

On the other hand, for some companies with a weak sense of responsibility, in order to save costs, the refrigerator is turned on when the customer loads the goods, and the refrigeration equipment is turned off when the customer feels that it is almost done during transportation, and then turned on when the customer arrives at the destination. The cold machine cannot be fully turned on. When the goods are delivered, although the goods are frozen on the surface, they have actually deteriorated.

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