CN104601059A

CN104601059A - Direct-current motor controller and method

Info

Publication number: CN104601059A
Application number: CN201510027138.5A
Authority: CN
Inventors: 余大庆; 王茹敏; 高扬; 陶路生; 徐元国; 刘墨林; 朱杰
Original assignee: Xinyang Normal University
Current assignee: Xinyang Normal University
Priority date: 2015-01-16
Filing date: 2015-01-16
Publication date: 2015-05-06

Abstract

The invention discloses a direct-current motor controller and method. The direct-current motor controller comprises a single-chip microcomputer PIC16F688 minimum system, a signal receiving module, a 7805 voltage stabilizing module, a relay module and an optical coupler module. By the adoption of a control chip PIC16F688, the problem that an existing motor completely relies on hardware control is solved, and control over a motor is more intelligent and more stable; due to adaptation of a procedure, different requirements of the outside world can be met without changes of a peripheral circuit; the problem that an existing system is too high in pertinence and cannot be changed according to the specific actual situation is solved; when rotor locking of the motor happens, the system has a rapid response, the phenomena, such as the time delay phenomenon, do not happen, a power source of the motor can be immediately disconnected, and the motor is protected from being burnt out; meanwhile, a wireless remote control module is added, and forward rotation, reverse rotation and stop of the motor are controlled in a wireless mode.

Description

A kind of DC motor controller and method

Technical field

The invention belongs to electroporation field, relate to a kind of DC motor controller and method.

Background technology

The DC motor controller of prior art adopts the connection of hardware, and when motor rotation blockage, information gathering insufficient sensitivity is high, and between components and parts, dependence is too strong, and components and parts number is too many, and performance is stable not, inconvenient maintenance.Circuit requirement precision is high, complex circuit designs, and components and parts are too many, and cost is high.Due to pure by signal wiring, its function and apply unalterable, cannot adapt to different operational environments.

Summary of the invention

The object of the invention is to the defect overcoming the existence of above-mentioned technology, a kind of DC motor controller and method are provided, adopt PIC16F688 control chip, solve motor in the past and rely on hardware controls completely, more intelligent to the control of motor, stabilisation.By the rewriting of program, peripheral circuit can be need not changed, just different extraneous requirements can be tackled.Solve system specific aim in the past too strong, cannot change according to concrete actual conditions.After motor suffers stall, system response is rapid, without situations such as time delays, can cut off motor power immediately, and protection motor can not be burned, and increases wireless remote control module, by controlled in wireless motor positive and inverse and stopping simultaneously.

Its concrete technical scheme is:

A kind of DC motor controller, comprises single-chip microcomputer PIC16F688 minimum system 1, signal receiving module 2,7805 Voltage stabilizing module 3, relay module 4 and optical coupling module 5,

Described single-chip microcomputer PIC16F688 minimum system 1 is the system core, runs control pin according to internal processes;

Described signal receiving module 2 is for receiving external signal;

The 12V power supply of input dress is changed to 5V power supply, for system provides energy by described 7805 Voltage stabilizing modules 3;

Described relay module 4 when reception external signal after, to the processing controls of circuit;

Described optical coupling module 5 according to the change of R2 sampling resistor both end voltage, thus changes K3 level point height.

Be connected mode: wherein letter identical representative device in line terminal is interconnected; Vcc end is 5V power end;

A kind of DC motor control method, comprises the following steps:

Step 1; Trigger: when A or B triggers 12V voltage, be divided to K4, K5 by R5, R6, signal changed into the voltage range of single-chip microcomputer identification;

Step 2; Signal transacting: single-chip microcomputer PIC16F688 receives K4, K5 leg signal, by the operation of single-chip microcomputer internal processes, judges the low and high level exporting K1, K2, K3 pin;

Step 3: starter motor: Q1, Q2, according to incoming level height, put conducting and still end, thus change relay operating state, change circuit connecting mode;

Step 4: motor rotation blockage: when after motor blocking, electric current in loop increases at random, R2 is sampling resistor, after electric current increases to certain value, after R2 both end voltage increases above 3.7V at random, optical coupler is started working, bypass circuit conducting, LED0 is luminous, the blocking of display motor, K3, by former electronegative potential, changes into high potential;

Step 5: motor power-off: when K3 receives high potential, single-chip microcomputer PIC16F688 Received signal strength, by internal interrupt program, K1, K2 pin level is all set to low level, now, triode Q1Q2 is in cut-off state, and two relays are in normally off, do not form loop, motor power-off stall.

Compared with prior art, beneficial effect of the present invention is: the present invention changes the design of pure hardware in the past, and access control chip, makes the control of motor more intelligent.Because program can compiled strong, more convenient, the program by changing the control program of control chip inside, thus tackles the different market demands, and need not make a change hardware circuit.Meanwhile, because in circuit, components and parts are fewer, be convenient to maintenance and the maintenance in later stage, also greatly reduce production cost simultaneously.

Accompanying drawing explanation

Fig. 1 is structure chart or the schematic diagram of DC motor controller;

Fig. 2 is the flow chart of DC motor control method;

Fig. 3 is the board design figure of DC motor controller.

Embodiment

Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in more detail.

With reference to Fig. 1, a kind of DC motor controller, comprises single-chip microcomputer PIC16F688 minimum system 1, signal receiving module 2,7805 Voltage stabilizing module 3, relay module 4 and optical coupling module 5,

Described signal receiving module 2 is for receiving external signal;

The relevant position of single-chip microcomputer PIC16F688 minimum system 1, signal receiving module 2,7805 Voltage stabilizing module 3, relay module 4 and optical coupling module 5 can be changed flexibly according to actual conditions in practical application.

As shown in Figure 2, a kind of DC motor control method, comprises the following steps:

Step 1; Trigger: when A or B triggers 12V voltage, be divided to K4, K5 by R5, R6, signal changed into the voltage range of single-chip microcomputer identification; Also can adopt hcs300 wireless signal decoding device Received signal strength, be directly sent to K4 on K5, HCS300 uses K EE L OQ frame hopping technology, and has that fail safe is high, package dimension is little and the characteristic such as cost is low.Be applied to this project can effectively launch and Received signal strength.

Step 2; Signal transacting: single-chip microcomputer PIC16F688 receives K4, K5 leg signal, by the operation of single-chip microcomputer internal processes, judges the low and high level exporting K1, K2, K3 pin.During K4 Received signal strength, K1 is set to high level; During K5 Received signal strength, K5 is set to high level

Step 3: starter motor: Q1, Q2, according to incoming level height, put conducting and still end, thus change relay operating state, change circuit connecting mode; Such as: when K1 is set to high level, triode 8050 is due to triode character, and collector electrode, emitter conducting, relay contact forwards normal battle to by normally closed point, and circuit forms loop, and motor rotates forward.

The board design figure of DC motor controller as shown in Figure 3.

Embody rule:

1 is applied on furniture automatic curtain, reaches remote control and the switch of curtain.

2 are applied on desk, and the position rotating of the devices such as computer moves.

The above; be only the present invention's preferably embodiment; protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen within the scope of protection of the present invention.

Claims

1. a DC motor controller, it is characterized in that, comprise single-chip microcomputer PIC16F688 minimum system (1), signal receiving module (2), 7805 Voltage stabilizing modules (3), relay module (4) and optical coupling module (5)

Described single-chip microcomputer PIC16F688 minimum system (1) is the system core, runs control pin according to internal processes;

Described signal receiving module (2) is for receiving external signal;

The 12V power supply of input dress is changed to 5V power supply, for system provides energy by described 7805 Voltage stabilizing modules (3);

Described relay module (4) when reception external signal after, to the processing controls of circuit;

Described optical coupling module (5) according to the change of R2 sampling resistor both end voltage, thus changes K3 level point height.

2. a DC motor control method, is characterized in that, comprises the following steps: step 1; Trigger: when A or B triggers 12V voltage, be divided to K4, K5 by R5, R6, signal changed into the voltage range of single-chip microcomputer identification;