A three-dimensional measurement system and method of greenhouse gas concentration

Abstract

The invention discloses a three-dimensional measurement system and method for gas concentration in a greenhouse. The measurement system includes a control terminal, a mobile gas concentration measurement device, a track, and a height moving device. The control terminal includes a space measurement position planning unit for acquiring measurement Demand, plan the sequence of the target position and target height for gas concentration measurement, and form the measurement point control information. The track is used to carry the mobile gas measurement device, and the height mobile device is used to adjust the mobile gas concentration measurement device according to the measurement point control information. Height to target height; the mobile gas concentration measuring device is used to move to a specific target position, and perform gas concentration measurement and data collection at the specific target position and target height, and send the gas concentration data to the control terminal through the wireless communication module . The system and method of the invention can automatically and conveniently realize the three-dimensional measurement of the gas concentration in the greenhouse.

Description

technical field [0001] The invention relates to modern automated agricultural technology, in particular to automated environmental monitoring technology in agricultural planting. Background technique [0002] In the prior art, the gas concentration measuring devices used in greenhouses such as figure 1 As shown, it is composed of a gas sensor, a data acquisition module, a wireless communication module, and a control module, and is powered by a power line. More specifically, as figure 2 As shown, there are mainly two arrangements for the greenhouse gas concentration measurement device. The first is to suspend the gas concentration measurement device on the steel frame of the greenhouse, such as the gas concentration measurement devices 1 and 4. The second is to place the gas concentration measuring devices on the ground of the greenhouse, such as the gas concentration measuring devices 2 and 3. By repeating the above two arrangements, the gas concentration measuring devic...

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Problems solved by technology

[0003] to combine figure 1 , figure 2 , image 3 It can be seen that due to the large area of ​​the greenhouse, when it is necessary to measure the gas concentration at multiple points, it is necessary to arrange a corresponding number of gas concentration measuring devices, which is costly

[0004] Secondly, a large number of gas concentration measuring devices are arranged on the ground, which is not conducive to production operations

Arranging a large number of gas concentration measuring devices at the same time will generate large energy consumption, which is not conducive to energy saving and environmental protection

[0005] Thirdly, the gas concentration measuring device arranged on the ground is prone to moisture because it is on the ground, which affects the service life of the gas concentration measuring device

At the same time, it is impossible to measure the gas concentration distribution at different heights as required

[0006] In some existing technologies, such as the utility model application with the publication number CN205280706U, the gas concentration is measured by means of a fixed track on the ground, so the gas concentration measurement device and its auxiliary facilities are difficult to arrange because they are on the ground, easy to get wet and affect the service life

Another example is the utility model application whose publication number is CN206557198U, which belongs to different technical fields and is not used in greenhouses, and uses hydrogen balloons to carry sensors, which cannot measure the gas concentration at a specific target position, but can only adjust the height of the sensor

Another example is the invention application whose publication number is CN105301190A, which is also a ground facility, and its positioning accuracy is lower compared with the track

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