Granary temperature and humidity measuring and monitoring unit and implementation method thereof

Abstract

The invention discloses a granary temperature and humidity measuring and monitoring unit and an implementation method thereof. The unit is characterized by comprising a temperature and humidity acquisition module, a temperature sensing switch, a pressure switch module comprising three pressure switches, a fourth field effect transistor, a fifth field effect transistor, a sixth field effect transistor and a seventh field effect transistor; a control voltage output of the pressure switch module is connected with a grid electrode of the seventh field effect transistor; a grid electrode of the fourth field effect transistor is connected with an output of the temperature and humidity acquisition module; a grid electrode of the sixth field effect transistor is in parallel connection with drain electrodes of the fourth field effect transistor and fifth field effect transistor, and a drain electrode of the seventh field effect transistor is connected with a grid electrode of the fifth field effect transistor and an input of the temperature and humidity acquisition module; the temperature and humidity acquisition module is connected with an information receiving and transmitting control terminal through wireless; the temperature sensing switch is in parallel connection with the switch of the sixth field effect transistor and then is in series connection in a loop of a battery and the temperature and humidity acquisition module. The method is characterized in that when the temperature and humidity acquisition module responds to an interruption request issued by the pressure switch module through the seventh field effect transistor, it is determined that granary overturning, grain discharging or stealing is performed, output information is uploaded to external equipment, and whenit is identified that a returned identification code representing granary overturning / grain discharging, an indicator light is lighted.

Description

technical field [0001] The invention belongs to the technical field of granary safety, and in particular relates to monitoring, uploading and implementation methods of temperature and humidity, overturning, anti-theft, etc. in the granary at the end of the granary monitoring and management system. Background technique [0002] As we all know, during the grain storage process, it is easily affected by temperature, humidity and other factors, and problems such as heat generation, mildew, and pest breeding may occur. In order to reduce the loss during the grain storage process and ensure the quality and quality of the grain, the granary monitoring and management system takes corresponding measures to cool down, dehumidify, Or turnover processing. At present, the granary monitoring and management system: according to the specific conditions of temperature and humidity uploaded by the sensor device of the terminal node, it can be automatically completed when cooling and / or dehum...

AI Technical Summary

Problems solved by technology

It is convenient to supply power to the node of the wired temperature and humidity sensing device, but it is inconvenient to install it in the grain pile; while it is convenient to bury the node of the wireless temperature and humidity sensing device in the grain pile, but the power supply must be wireless and / or battery powered, and No battery power supply, if the temperature and humidity exceed the limit, it cannot be monitored in real time, that is, it cannot be uploaded to the granary monitoring and management system

The wired temperature and humidity sensing device can not only facilitate the regular inspection of the granary monitoring and management system, but also facilitate the real-time upload of temperature and humidity exceeding the limit to the granary monitoring and management system during the inspection period, because the wired temperature and humidity sensor The power supply of the sensing device is convenient, so the temperature and humidity sensing device in the wired mode can be in the live working state all the time, but the node of the temperature and humidity sensing device in the wired mode is not convenient to be installed in the stacking granary; the temperature and humidity sensing device in the wireless mode The sensing device node can facilitate the regular inspection of the granary monitoring and management system, and the wireless temperature and humidity sensing device node is located in the stacking granary, which is more convenient than the wired temperature and humidity sensing device node, but the granary monitoring and management system is not in the inspection. During the inspection period, if the temperature and humidity exceeds the limit, it needs to be uploaded to the granary monitoring and management system in real time. The node of the wireless temperature and humidity sensing device must have its own power supply battery. Because the power of the battery is limited, it must be considered in the state of energy saving. If the management system is not in the inspection period, if the temperature and humidity exceed the limit, it will be uploaded to the granary monitoring and management system in real time, and the problem of convenient battery replenishment needs to be considered

After investigation, there is still no good solution to solve the energy saving problem of the wireless temperature and humidity sensing device with temperature and humidity overrun uploaded to the granary monitoring and management system in real time, and to solve its battery power replenishment problem, because once the wireless method The temperature and humidity sensing device is embedded in the stacking granary, which is inconvenient to take out. It is convenient to take out the temperature and humidity sensing device when the bin is turned over or the grain is put out.

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