Indicator for forecasting shelf life of cold fresh pork

Abstract

The invention relates to an indicator for forecasting the shelf life of cold fresh pork, belonging to the technical field of detecting the quality of the pork by acquiring the temperature of the pork. The indicator forecasts the shelf life of the pork by timely acquiring the temperature of the pork in the circulation process from output to sell. The indicator has small volume and convenient use, can be directly attached to the surface of the cold fresh pork, and timely updates and displays the temperature, the shelf life and the system time of the fresh pork. The indicator uses a high-precision temperature sensor DS18B20 to acquire the temperature of the surface of the cold fresh pork, transmits the temperature value to a micro controller MSP430F1XX through a data wire DQ, uses the controller to forecast the real-time shelf life based on the TTT theory of the temperature, and uses a liquid crystal display LM6059BCW to display real-time temperature, the shelf life, the system time and the food names. The system time, the real-time temperature and the shelf life are all memorized in an extended memory card every 1 hour, and can be transmitted to a computer through serial ports of the indicator as required by users. The indicator has high precision, low energy consumption, multiple functions and convenient operation, and effectively solves the problem for forecasting the shelf life of the cold fresh pork during circulating.

Description

technical field [0001] The invention is an indicator which uses a temperature sensor attached to the surface of chilled fresh pork to predict its shelf life by calling an algorithm in a rule library in real time, and uses a display screen to display various data. Background technique [0002] At present, consumers' consumption orientation of pork is undergoing major changes, and their demand for "safe meat" has greatly increased. Only safer, more hygienic and more nutritious chilled fresh pork can meet their consumption needs. Guided by such demands, food safety and traceability will be the focus of consumers' attention. But so far, there is no electronic chilled fresh pork quality detection device to occur yet. [0003] The existing shelf life prediction device for dairy products is designed based on the principle of an embedded system, which has many disadvantages, such as: low prediction accuracy, power supply, high power consumption, large volume and inconvenient use, a...

AI Technical Summary

Problems solved by technology

[0003] The existing shelf life prediction device for dairy products is designed based on the principle of an embedded system, which has many shortcomings, such as: low prediction accuracy, power supply, high power consumption, large volume and inconvenient use, and does not have historical temperature and shelf life query function (that is, the traceability of food cannot be ensured), and the real-time alarm cannot be issued when the quality of dairy products is at a critical point, etc., which have not been applied in real life

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