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Motor control circuit of saline-alkali soil water and fertilizer integrated irrigation system

An irrigation system and motor control technology, applied in the field of electronics, can solve the problems of cumulative error of motor rotation cycle, uneven motor rotation frequency, inaccurate position control, etc., to achieve no cumulative error, uniform rotation frequency, and simple control. Effect

Inactive Publication Date: 2015-10-28
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current motor control circuit has a complex circuit structure, uneven rotation frequency of the motor, cumulative error in the rotation cycle of the motor, and inaccurate position control.

Method used

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  • Motor control circuit of saline-alkali soil water and fertilizer integrated irrigation system
  • Motor control circuit of saline-alkali soil water and fertilizer integrated irrigation system
  • Motor control circuit of saline-alkali soil water and fertilizer integrated irrigation system

Examples

Experimental program
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Embodiment Construction

[0032] Examples such as figure 1 and figure 2 As shown, a motor control circuit of a saline-alkali land water and fertilizer integrated irrigation system includes a control module, an input module and an output module.

[0033] The control module is a single-chip microcomputer AT89C51, and the single-chip microcomputer AT89C51 includes pins 1-40.

[0034] The input module includes a motor drive chip L298, and the motor drive chip L298 includes pins 1 to 15, pins 5, 6, 7, 10, and 11 of the motor drive chip L298. Pin and pin No. 12 are input pins.

[0035] The No. 5 pin of the motor drive chip L298 is connected to one end of the resistor R1, and the No. 5 pin of the motor drive chip L298 is connected to the No. 39 pin of the single-chip microcomputer AT89C51;

[0036] The No. 7 pin of the motor drive chip L298 is connected to one end of the resistor R2, and the No. 7 pin of the motor drive chip L298 is connected to the No. 38 pin of the single-chip microcomputer AT89C51;

...

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Abstract

The invention discloses a motor control circuit of a saline-alkali soil water and fertilizer integrated irrigation system. The motor control circuit comprises a control module, an input module and an output module, wherein the control module is a single chip microcomputer AT89C51 which comprises pins from No.1 to No.40; the input module comprises a motor driving chip L298 which comprises pins from No.1 to No.15, and the pin No.5, the pin No.6, the pin No.7, the pin No.10, the pin No.11 and the pin No.12 of the motor driving chip L298 are input end pins; and the output module comprises a motor driving chip L298 and a motor M, a pin No.2, a pin No.3, a pin No.13 and a pin No.14 of the motor driving chip L298 are output end pins, and the pin No.2, the pin No.3, the pin No.13 and the pin No.14 of the motor driving chip L298 are connected with the motor M. The motor control circuit has the advantages that the circuit structure is simple, the rotation frequency of the motor is uniform, the rotation period of the motor has no accumulated error, and the position control is accurate.

Description

technical field [0001] The invention relates to a motor control circuit of a water and fertilizer integrated irrigation system for saline-alkali land, which belongs to the field of electronic technology. Background technique [0002] In the irrigation system, the speed requirement of the irrigation robot arm is high, and to achieve precise positioning, the motor controls the horizontal rotation and vertical swing of the robot arm to realize the precise positioning of the sprinkler irrigation. The speed and stop position of the motor are very important. However, the current motor control circuit has complex circuit structure, uneven rotation frequency of the motor, cumulative error in the rotation cycle of the motor, and inaccurate position control. Contents of the invention [0003] The problem to be solved in the present invention is to solve the above-mentioned technical defects, and to provide a motor control circuit for an integrated irrigation system of water and fer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/042
Inventor 王胜
Owner WEIFANG YOURONG IND
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