Grain condition alarm system, grain condition control system and grain bulk safety state discrimination method

Abstract

The invention provides a grain condition alarm system. The system comprises a plurality of temperature sensors, a storage unit, an analysis unit and an alarm unit, wherein the temperature sensors are used for detecting the temperature of each position in the grain bulk; the storage unit is used for storing the detection position and time of each temperature sensor and the data of the detection temperature at the detection time; the analysis unit comprises a calculation module and a temperature difference comparison module; the calculation module is used for calculating the pre-detected temperature and the temperature difference between the actually detected temperature and the pre-detected temperature; the temperature difference comparison module is used for comparing the temperature difference with the temperature difference threshold in each detection position; the analysis unit also comprises a temperature comparison module; the temperature comparison module is used for comparing the actually detected temperature value with the temperature threshold in each detection position; when the temperature difference is not less than the temperature difference threshold or when the temperature difference is not less than the temperature difference threshold and the actually detected temperature is not less than the temperature threshold, the analysis unit sends out unsafety state information; and the alarm unit gives an alarm after receiving the unsafety state information. The invention also provides a grain condition control system and a grain bulk safety state discrimination method.

Description

technical field [0001] The invention relates to a grain storage safety theory method and engineering control application technology, in particular to a novel grain situation alarm system, a grain situation control system and a method for judging the safety state of grain piles. Background technique [0002] Grain is an important agricultural product and an important resource related to the national economy and people's livelihood. In order to ensure my country's food security, a large number of large-scale grain reserve depots have been newly built since 1998. Therefore, a major demand has been put forward for the quality and safety of grain reserves. At present, the common method of monitoring the grain situation at home and abroad is to install a temperature sensor inside the grain pile in the granary, and judge the quality and safety of the grain by monitoring the temperature of the grain pile. The storage period of foreign grains is generally 3 to 6 months. Due to the s...

AI Technical Summary

Problems solved by technology

Although this can play a role in early warning, it also increases unnecessary false alarms.

Although these methods can guarantee the quality and safety of grain piles to a certain extent, they are difficult to achieve the purpose of early prevention because most of them are empirical means, and the blindness of prevention and control is relatively high.

[0004] Therefore, there is a need for a grain alarm system that can accurately alarm the grain condition of the granary by detecting the temperature of the grain pile, so as to solve the problem of grain storage quality control in large-scale granaries in my country

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