Agricultural machinery is widely used in modern agricultural operations, but its operating area is still well calculated. The application of intelligent area measurement system in agricultural machinery is worth exploring. The number of rotations of the wheels on both sides of the rear axle of agricultural machinery (such as a tractor and a combine harvester) is detected by a magnetic induction sensor, and the detection result is input to the counting port of the single-chip microcomputer. The width of the agricultural machinery operation tool is measured manually and the measurement data is input to the controller. The controller automatically calculates the agricultural machinery work tool area based on the magnetic induction sensor detection information and the manually input tool width and calculates the result. Synchronized display in the system display. The amount of switches collected by the farmland area measuring instrument system, such as the type of working implements and the working status of the operating implements, etc., are displayed by the LEDs to facilitate the operation of agricultural machinery operators.
By comparison, the SCM is small and flexible, low cost, easy to product, reliable performance, wide temperature range, easy expansion, strong control features, easy to install in agricultural machinery, reduce system costs, can be in the agricultural machinery Widely promoted. The poor working environment of agricultural machinery, using a single-chip microcomputer as a controller is more conducive to improving the reliability of the system.
Farmland area measuring instrument uses magnetic induction sensors. Magneto-inductive sensor is an electromechanical energy conversion type sensor, does not require power supply, simple circuit, stable performance, small output impedance, but also has a certain range of frequency response, suitable for speed measurement. The quality and volume of this kind of sensor are larger, but it does not affect the application on agricultural machinery.
The farmland area measuring instrument initializes each port and device in the main program, and checks whether the peripheral device (mainly the wheel rotation number sensor, farm implement working state sensor and memory) can work normally. If an abnormal problem occurs, an alarm is issued to remind the operator to perform the corresponding operation. The self-test process is to check whether the state of each line port after initialization is consistent with the expected state after initialization, and restore the values ​​of various variables at the time of the previous shutdown. When checking agricultural machinery farm implement type and operation status, determine the farm implement size according to the type of farm implement and assign the relevant variable with the corresponding value, and determine whether the area measurement system is in the standby state or area measurement according to the farm implement status.
By comparison, the SCM is small and flexible, low cost, easy to product, reliable performance, wide temperature range, easy expansion, strong control features, easy to install in agricultural machinery, reduce system costs, can be in the agricultural machinery Widely promoted. The poor working environment of agricultural machinery, using a single-chip microcomputer as a controller is more conducive to improving the reliability of the system.
Farmland area measuring instrument uses magnetic induction sensors. Magneto-inductive sensor is an electromechanical energy conversion type sensor, does not require power supply, simple circuit, stable performance, small output impedance, but also has a certain range of frequency response, suitable for speed measurement. The quality and volume of this kind of sensor are larger, but it does not affect the application on agricultural machinery.
The farmland area measuring instrument initializes each port and device in the main program, and checks whether the peripheral device (mainly the wheel rotation number sensor, farm implement working state sensor and memory) can work normally. If an abnormal problem occurs, an alarm is issued to remind the operator to perform the corresponding operation. The self-test process is to check whether the state of each line port after initialization is consistent with the expected state after initialization, and restore the values ​​of various variables at the time of the previous shutdown. When checking agricultural machinery farm implement type and operation status, determine the farm implement size according to the type of farm implement and assign the relevant variable with the corresponding value, and determine whether the area measurement system is in the standby state or area measurement according to the farm implement status.
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