Device for measuring system delay time in variable spraying process based on real-time sensor

Abstract

The invention discloses a device for measuring system delay time in the variable spraying process based on a real-time sensor. The device is mainly composed of a photoelectric sensor, liquid level photoelectric sensors, a signal capture timer, a sliding block, a servo motor with the adjustable speed, a servo motor controller, a sliding rail platform and the like, wherein the photoelectric sensor is installed on a spraying machine, the photoelectric sensor and the original real-time sensor are in the same perpendicular position, the liquid level photoelectric sensors are fixed to nozzles and used for sensing water, and the sliding block is used for stimulating moving plant targets. The interval between time when the plant targets are detected by the real-time sensor and time when spraying operation is started is the system delay time in the spraying process, the delay time is inherent in a system, and it is important to accurately measure the delay time. In the spraying process, the real-time sensor is installed in front of the nozzles by a certain distance, the plant targets are sensed in advance, time needed for the plant targets to reach the nozzles is calculated through the real-time speed, and in combination with the measured system delay time, accurate targeting spraying can be achieved.

Description

technical field [0001] The invention relates to a delay time measurement device, in particular to a system delay time measurement device in the spraying process based on real-time sensor variables. Background technique [0002] During the spraying process, the traditional spraying method cannot perform variable spraying according to the characteristics of the spraying target. For plant targets with large plant spacing, different shapes, and varying degrees of branch and leaf density, a lot of waste is caused during the spraying process. lead to serious environmental pollution problems. At present, variable spray based on infrared, ultrasonic and laser detection real-time sensor technology has been further researched and applied. This type of real-time sensor-based variable spray technology requires the sensor to quickly identify the target and accurately control the nozzle spray, so as to ensure that the spray is accurately targeted when the nozzle reaches the target during...

AI Technical Summary

Problems solved by technology

Due to the inherent delay of the system due to factors such as sensor measurement process, controller algorithm processing, and solenoid valve drive, it is difficult to ensure accurate target spraying as the spray speed changes.

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