Multi-parameter grain situation detection terminal

Abstract

The invention discloses a multi-parameter grain situation detection terminal, which includes a plurality of pest trapping devices that are arranged in different positions of a granary, a ball valve gating device, a pest detection pipeline, a gas detection pipeline and a control module. The pest detection pipeline and the gas detection pipeline are connected in parallel. The pest detection pipeline comprises an electric ball valve, a pest counting device, a pest collecting bottle, a pressure meter and a gas suction pump, which are connected to each other through gas pipes. The gas detection pipeline includes a filter, an electric ball valve, a gas suction pump and a gas detector. The ball valve gating device is composed of a plurality of electric ball valves which are one-to-one correspondingly conencted to the pest trapping devices. Each electric ball valve is controlled by the control module. The control module controls on / off of the electric ball valves.

Description

technical field [0001] The invention relates to a grain situation detection terminal, in particular to a multi-parameter grain situation detection terminal. Background technique [0002] During the storage period of grain in the granary, the harm of pests is very serious. The excessive reproduction of pests will cause the loss and spoilage of grain stored in the granary. Gas components, taking effective countermeasures can reduce the damage to food by pests. Patent application number: 201310193718.2 The invention patent discloses an integrated detection system for comprehensive indicators of grain conditions, including a grain condition detection system and a granary temperature and humidity monitoring system respectively connected to the control module, and the control module is connected to the host computer. The periodic gating device in this patent uses a positive and negative motor to drive the through hole on the moving plate to communicate with one of the several air...

AI Technical Summary

Problems solved by technology

The periodic gating device in this patent uses a positive and negative motor to drive the through hole on the moving plate to communicate with one of the several air guide holes on the fixed plate, and connect the entire insect extraction pipeline to realize insect extraction and air extraction; the device When the under-membrane circulation fumigation or nitrogen atmosphere is used to kill insects in the granary, the air guide hole on the fixed plate will lead the toxic gas or nitrogen with a certain pressure in the granary from the insect trap to the periodic gating device through the air pipe. inside, resulting in the leakage of fumigant gas or nitrogen under the film, affecting the airtightness of the film-coated grain pile; in addition, the toxic gas will corrode the stepping motor or servo motor in the gating device, causing damage to the gating device and making it unable to work ; In addition, this invention adopts the food insect counter of photocoupler, is easily affected by factors such as light and heat of the external environment and the aging of the transparent tube passing through the photocoupler, causing a large change in the output signal of the photocoupler, thereby affecting The accuracy of pest counting; and the composite gas detector in this patent is set at the negative pressure end of the negative pressure source, which will cause the measured gas to not fully diffuse to the gas detector during gas measurement, which will affect the accuracy of detection

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