Agricultural greenhouse data transmission system

A data transmission system and agricultural technology, applied in the field of agricultural greenhouse data transmission system, can solve the problems of increasing the number of data transmission modulation-demodulation, increasing the number of data signal sending-receiving, increasing the error of analog signal, etc. Effects of anti-interference, signal noise reduction, and reliability improvement

Inactive Publication Date: 2019-11-05
HUANGHE S & T COLLEGE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Among them, data transmission relies on the principle of nearest communication, which is equivalent to increasing the nodes of data transmission, reducing the distance of data transmission, and also increasing the number of data transmission modulation-demodulation, increasing the number of times of data signal transmission-reception, because each time

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  • Agricultural greenhouse data transmission system
  • Agricultural greenhouse data transmission system
  • Agricultural greenhouse data transmission system

Examples

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Example Embodiment

[0014] The first embodiment is an agricultural greenhouse data transmission system, including a controller, a signal transmission module, a display module, an error calibration module, and a signal acquisition module. The signal acquisition module collects agricultural greenhouse operating state data signals and sends them to the control via the signal transmission module. Inside the device, the controller analyzes and processes the data signal, and controls the display module to display the real-time status information of the agricultural greenhouse. The error calibration module includes a frequency acquisition circuit, a separation feedback circuit and a push-pull voltage regulator circuit. The frequency acquisition circuit acquisition controller The receiving signal transmission module outputs the analog signal frequency. The separation feedback circuit uses the capacitor C6, the capacitor C7 and the transistor Q1 to form a separation circuit to divide the signal into two sign...

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Abstract

The invention discloses an agricultural greenhouse data transmission system. The agricultural greenhouse data transmission system comprises a frequency acquisition circuit, a separation feedback circuit and a push-pull voltage stabilizing circuit. The frequency acquisition circuit acquires analog signal frequency output by the signal transmission module and received by the controller; according tothe separation feedback circuit, a capacitor C6, a capacitor C7 and a triode Q1 form a separation circuit to divide a signal into two paths of signals with the same frequency and different amplitudes; in one path, an operational amplifier AR1, a diode D1, a diode D2 and a capacitor C8 are used for forming a noise reduction circuit to reduce the signal-to-noise ratio; in the second path, an operational amplifier AR2, an operational amplifier AR3, a capacitor C4 and a capacitor C5 form a filter circuit to filter disturbance signals; finally, the push-pull voltage stabilizing circuit uses a triode Q4 and a triode Q5 to form a push-pull circuit to prevent signal crossover distortion, the signals are output after being stabilized by a voltage stabilizing tube D3, the signals in the signal transmission channel for the control terminal in the agricultural greenhouse data transmission system are detected in real time, the signals can be automatically calibrated, and signal distortion is prevented.

Description

technical field [0001] The invention relates to the field of circuit technology, in particular to an agricultural greenhouse data transmission system. Background technique [0002] In the prior art, a large data acquisition system for environmental parameter monitoring of greenhouses (application number: 201610176247.8) is disclosed. The greenhouse farthest from the monitoring center communicates wirelessly with another greenhouse closest to the monitoring center. The nearest greenhouse is connected to the data server group of the monitoring center through wireless means, and all the greenhouses between the greenhouse farthest from the monitoring center and the greenhouse closest to the monitoring center use the previous greenhouse to transmit data to the nearest next one The nearby communication principle of the greenhouse, until all the data is transmitted to the monitoring center, after all the data is collected, it can form a graph that intuitively reflects the changes o...

Claims

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Application Information

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IPC IPC(8): H04B1/40
CPCH04B1/40
Inventor 李伟柴远波张换珍李光远董满才尚屹秦博智
Owner HUANGHE S & T COLLEGE
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