CN105242727A - Simple numerically-controlled one-way alternating-current low-voltage precise voltage regulating device and method thereof - Google Patents
Simple numerically-controlled one-way alternating-current low-voltage precise voltage regulating device and method thereof Download PDFInfo
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Abstract
The invention provides a simple numerically-controlled one-way alternating-current low-voltage precise voltage regulating device and a method. The device comprises a single-chip microcomputer controller, a manual voltage regulator, a key, a liquid crystal display circuit, an industrial frequency transformer, a stepping motor subdivision driving circuit, a stepping motor, an output current sampling and shaping circuit, an output voltage sampling and shaping circuit, an auxiliary power supply and a changing circuit of the auxiliary power supply; the input end of the single-chip microcomputer controller is connected with the output current sampling and shaping circuit, the output voltage sampling and shaping circuit, the stepping motor subdivision driving circuit, the auxiliary power supply, the changing circuit of the auxiliary power supply and the key; the output end of the single-chip microcomputer controller is connected with the liquid crystal display circuit. According to the device, the stepping motor and the subdivision driving circuit are adopted as executing devices to assist a corresponding fuzzy control voltage regulating algorithm, the extremely high voltage regulating precision can be achieved, and the precision can reach 0.1 V.
Description
Technical field
The present invention relates to voltage pressure regulation method, particularly relate to a kind of simple nc one-way communication low pressure accurate voltage regulating devices and methods therefor.
Background technology
In the fields such as scientific research, test and teaching demonstration, often need to change flexibly between 0-250V for 220VAC AC-input voltage, this carries out pressure regulation with regard to needs for input voltage.At present, market there is multiple voltage regulating mode, as manually simulated pressure regulation, Thyristor Controlled digital voltage regulation, IGBT copped wave numerical controlled voltage, break-make control pressure regulation, but in above-mentioned occasion, because other several voltage regulating mode has higher price, at a low price, stable manual simulation pressure regulation is widely adopted.But manually simulation pressure regulator needs manual control pressure regulation to export, and is not suitable for the occasion needing to carry out digital voltage regulation control, which also limits its application in robotization and field of power electronics.
Summary of the invention
For solving above technical matters, the present invention proposes a kind of simple nc one-way communication low pressure accurate voltage regulating device and installation method thereof.
Technical scheme of the present invention is:
A kind of simple nc one-way communication low pressure accurate voltage regulating device, comprise singlechip controller, manual voltage regulator, button, liquid crystal display and display circuit, Industrial Frequency Transformer, it is characterized in that, also comprise stepper motor and stepper motor subdivision drive circuit, output current sampling and shaping circuit, output voltage sampling and shaping circuit, accessory power supply and translation circuit thereof; Singlechip controller input end be connected with output current sampling and shaping circuit, output voltage sampling and shaping circuit, stepper motor subdivision drive circuit, accessory power supply and translation circuit thereof, button; Singlechip controller output terminal is connected with liquid crystal display circuit; Display circuit output terminal is connected with liquid crystal display;
220V external communication electricity is delivered to the input end of Industrial Frequency Transformer, manual voltage regulator, and the output terminal of Industrial Frequency Transformer is connected with accessory power supply and translation circuit thereof; The output terminal of manual voltage regulator is connected with output current sampling and shaping circuit, output voltage sampling and shaping circuit; Arrange voltage at the output terminal of manual voltage regulator to export; The handle of manual voltage regulator is connected with stepper motor, and stepper motor is connected with stepper motor subdivision drive circuit, and stepper motor subdivision drive circuit is used for Driving Stepping Motor;
Output current sampling and shaping circuit adopt standard current transformer, the semaphore of induction output current, and do Shape correction by the circuit that amplifier is formed to this semaphore, so that Chip Microcomputer A/D collection; Output voltage sampling and shaping circuit adopt standard potential transformer, the semaphore of induction output level, and do Shape correction by the circuit that amplifier is formed to this semaphore, so that Chip Microcomputer A/D collection; Stepper motor and sub-driver circuit thereof drive the rotatable handle on manual voltage regulator to realize pressure regulation for Single-chip Controlling stepper motor; Power frequency transformation and auxiliary power circuit part thereof adopt 50W24VAC to export Industrial Frequency Transformer, are equipped with accessory power supply and translation circuit thereof, and for system provides+24V power supply and+5V power supply, wherein+24V power supply is that driving stepper motor is used; + 5V power supply is that Single Chip Microcomputer (SCM) system is used; Manual voltage regulator is for bearing the task of realistic simulation pressure regulation.
Further, output current sampling and shaping circuit, comprise current sampling circuit, anti-phase ratio circuit, rectification circuit, filtering circuit, bleeder circuit, impedance inverter circuit;
The output voltage of current sampling circuit after anti-phase ratio circuit amplifies first through rectification circuit, and after the smoothing filtering of filtering circuit, successively after the bleeder circuit dividing potential drop that R5, R7 are formed, be delivered to impedance inverter circuit again, deliver to single-chip microcomputer input end after impedance transformation is carried out to voltage and carry out voltage sample, calculate the current value of out-put supply.
Further, current sampling circuit is made up of current transformer U1, resistance R1, resistance R2, electric capacity C1 and amplifier AR1; R1 is sampling resistor, R2, C1 phase corrective network in series.
Further, resistance R4, R3 and amplifier U2A forms anti-phase ratio circuit.
Further, auxiliary power circuit comprises Industrial Frequency Transformer T1, rectifier bridge D2 and D4, switching power source chip U4, U2, U3, and filter capacitor, inductance and the fast recovery diode IN5822 needed for switching power source chip periphery;
Switching power source chip U4 and U2 all adopts LM2576, and wherein U4 is fixing 15V output, and U2 exports, for the pulsating direct current after rectification being become the+5V burning voltage needed for Single Chip Microcomputer (SCM) system for fixing 5V; Switching power source chip U3 adopts 3A to fix the LM2596 of 24V output, for the pulsating direct current after rectification being become the+24V burning voltage needed for driving system of stepping motor.
Pressure regulation method, is characterized in that, comprises the steps:
Step 1: system electrification initialization; First Single-chip Controlling first power-up initializing, then carry out timer, SCI, SPI communication interface, the peripheral hardware such as clock and analog to digital converter initialization, the liquid crystal display of initialization simultaneously;
Step 2: scanning button also enters interrupt latency state;
After system initialization, first read output voltage and the electric current of numerical control voltage regulator, and then upgrade display screen displaying contents; Enter key scan and interrupt latency state afterwards, in this condition, the button of the continuous scan setting of system, has judged whether key-press input, also waits for the communication disruption of SCI and SPI interface simultaneously, to receive the steering order input of peripheral control unit;
When pressing when there being button and set output voltage or interrupt occurring, system enters step 3;
Step 3: adopt fuzzy algorithm, the rotating speed of adjustment stepper motor;
Calculating voltage difference also implements the control that FUZZY ALGORITHMS FOR CONTROL carries out stepper motor rotating speed; Adopt the additional subdivision driver of stepper motor to control in system, very high controlling angle precision can be reached, thus also can carry out fine Voltage Cortrol;
Step 4: Voltage Cortrol is complete, returns second step and enters key scan and interrupt latency state.
Further, in step 3, first controller calculates the difference of setting voltage and current output voltage, and implements FUZZY ALGORITHMS FOR CONTROL adjustment:
When difference is larger, use higher stepper motor rotating speed;
When difference is moderate, adjustment stepper motor is middling speed;
When difference is less, adjustment stepper motor is low speed;
When difference is minimum, adjustment stepper motor is minimum speed;
In the process, constantly gather pressure regulator output voltage, and adopt control algolithm to carry out Voltage Cortrol; When voltage reaches within the scope of permissible error, terminate adjustment.
Beneficial effect of the present invention:
(1) adopt controller, sensor, the term of execution and digital display device form the control section of numerical control voltage regulator, carry out installing design additional for original commercially available pressure regulator, namely the AC voltage regulator that numeral is adjustable is defined, there is the features such as cost is low, easy to use, Regulation Control is various informative, filled up the blank of low pressure numerical control voltage regulator at a low price.
(2) system adopts stepper motor+subdivision driver as performer, and auxiliary corresponding fuzzy control pressure regulation algorithm, can reach high regulation precision, precision can reach 0.1V.
(3) adopt single-chip microcomputer implementation system to control, user by SPI and SCI communication interface external controller, can rely on the external output voltage controlling pressure regulator.
(4) adopt liquid crystal display to carry out the display of information, have that display contains much information, the feature such as directly perceived.
(5) be provided with output current sampling, not only can increase the display of output power and power factor, also can be overcurrent protection in the future and provide reference data.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
The sampling of Fig. 2 output current signal and shaping circuit;
Fig. 3 accessory power supply and translation circuit thereof;
Fig. 4 regulating process figure.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with diagram and specific embodiment, setting forth the present invention further.
Simple nc one-way communication low pressure accurate voltage regulating device, comprise, the sampling of singlechip controller 1, stepper motor subdivision drive circuit 4, stepper motor 5, manual voltage regulator 7, output current and shaping circuit 2, output voltage sampling and shaping circuit 3, Industrial Frequency Transformer 6 and accessory power supply thereof and translation circuit 8, button 9, liquid crystal display, display circuit 10; Singlechip controller 1 input end be connected with output current sampling and shaping circuit 2, output voltage sampling and shaping circuit 3, stepper motor subdivision drive circuit 4, accessory power supply and translation circuit 8 thereof, button 9; Singlechip controller 1 output terminal is connected with liquid crystal display circuit 10; The input end input of Industrial Frequency Transformer 6 has 220V alternating current, and its output terminal is connected with accessory power supply and translation circuit 8 thereof.Display circuit 10 output terminal is connected with liquid crystal display, and liquid crystal display is used for the output of display device.
The input end input of manual voltage regulator 7 has 220V alternating current, and its output terminal is connected with output current sampling and shaping circuit 2, output voltage sampling and shaping circuit 3, the output terminal of manual voltage regulator 7 is provided with output voltage simultaneously; The handle 71 of manual voltage regulator 7 is connected by the arbor of fastener with stepper motor 5, and stepper motor 5 is arranged a handwheel 51, stepper motor 5 is connected with stepper motor subdivision drive circuit 4, and stepper motor subdivision drive circuit 4 is for Driving Stepping Motor 5.
In this device, singlechip controller 1 adopts STC12C5628AD single-chip microcomputer at a low price, inner containing 10,8 tunnel ADC peripheral hardware, 27 universal I/O ports, there is SPI and SCI communication serial port simultaneously, semaphore AD for realizing whole system gathers, the drived control of motor and the control etc. of man-machine user interface.
Output current sampling and shaping circuit 2 adopt standard current transformer, the semaphore of induction output current, and do Shape correction by the circuit that amplifier is formed to this semaphore, so that Chip Microcomputer A/D collection.
Output voltage sampling and shaping circuit 3 adopt standard potential transformer, the semaphore of induction output level, and do Shape correction by the circuit that amplifier is formed to this semaphore, so that Chip Microcomputer A/D collection.
Stepper motor 5 and sub-driver circuit 4 thereof for performer with 42 stepper motors, using 109S-48-4.5 type two-phase stepping motor segmentation device as driving element, drive the handle 71 on manual voltage regulator 7 to rotate for Single-chip Controlling stepper motor and realize pressure regulation.
Power frequency transformation 6 and auxiliary power circuit part 8 thereof adopt 50W24VAC to export Industrial Frequency Transformer, are equipped with accessory power supply and translation circuit thereof, and for system provides+24V power supply and+5V power supply, wherein+24V power supply is that driving stepper motor is used; + 5V power supply is that Single Chip Microcomputer (SCM) system is used.
Liquid crystal display circuit 10 is for the ac voltage showing the alternating voltage of current input, alternating current, power and export, and Operation system setting shows information alternately.
Button 9 adopts 4 × 4 matrix keyboards, for the input of conventional numerical and the operation such as the confirmation of input and cancellation, and simultaneously for arranging the communication interface of adjustment output voltage.
Manual voltage regulator is for bearing the task of realistic simulation pressure regulation.
As shown in Figure 2, for output current sampling and the circuit diagram of shaping circuit 2, it is made up of amplifier OP07, LM358D, rectifier bridge D1, stabilivolt D2, adjustable resistance R1, R2, R3 and R7, resistance R4 and R5, power resistor R6, smothing filtering electric capacity C3, filter capacitor C1, C2 and C4, current transformer U1.
Wherein stabilivolt D2 adopts 5.1V stabilivolt, needs series limiting resistor R6 to use during use; Adjustable resistance R1, R2, R3 and R7 all adopt the adjustable glass glaze precision resistor of different resistance; Resistance R4 and R5 all adopts the Chip-R of 0805 encapsulation; Power resistor R6 is the current-limiting resistance of 10 ohm of 2W; Smothing filtering electric capacity C3 is the withstand voltage alminium electrolytic condenser of 470u capacitance 50V; Filter capacitor C1, C2 and C4 all adopt the patch capacitor of 104 capacitances of 0805 encapsulation; Current transformer U1 adopts ZMCT102 precision current transformer, input-output ratio 2000:1.
Current transformer U1, resistance R1, resistance R2, electric capacity C1 and amplifier AR1 form current sampling circuit 21; R1 is sampling resistor, R2, C1 phase corrective network in series, and amplifier AR1 adopts OP07, and the voltage of output terminal exports U=I/2000 × R1.Consider that input current is generally 1-5A, R1 is about 100 ohm, and this voltage is generally millivolt level, and therefore its output terminal is provided with and forms anti-phase ratio circuit 22 by R4, R3 and amplifier U2A.U2A, U2B adopt amplifier LM358D.Rectifier bridge D1 forms rectification circuit 23; Filter capacitor C3, C4 parallel connection forms filtering circuit 24;
Voltage after anti-phase ratio circuit 22 amplifies is first through rectifier bridge D1, and after the smoothing filtering of C3 and C2, after the potential-divider network dividing potential drop successively formed through R5, R7 again, C4 capacitor filtering, the voltage stabilizing of D2 stabilivolt, deliver to the in-phase input end of U2B, the AD pin P1.0_ADC0 delivering to single-chip microcomputer after carrying out impedance transformation to this voltage carries out voltage sample, and then calculates the current value of out-put supply.
As shown in Figure 3, this circuit is formed primarily of filter capacitor, inductance and the fast recovery diode IN5822 needed for Industrial Frequency Transformer T1, rectifier bridge D2 and D4, switching power source chip LM2576 and LM2596 and switching power source chip periphery for accessory power supply and translation circuit thereof.Consider that numerical control voltage regulator needs two kinds of voltage :+5V and+24V, the former is for Power of SCM System; The latter is used for stepping motor system and drives.Consider that stepping motor system drives required electric current comparatively large, the special independent road LM2596 of employing is fixing exports 24V voltage simultaneously.And export for an other road 5V, for reducing voltage stabilization stress, strengthening the stability of power-supply system, adopting two-stage voltage stabilizing, first+24V is become+15V, and then+15V is become+5V.
Switching power source chip U1 and U2 all adopts LM2576, and wherein U4 is fixing 15V output, and U2 exports, for the pulsating direct current after rectification being become the+5V burning voltage needed for Single Chip Microcomputer (SCM) system for fixing 5V.Switching power source chip U3 adopts 3A to fix the LM2596 of 24V output, for the pulsating direct current after rectification being become the+24V burning voltage needed for driving system of stepping motor.
The transformer that Industrial Frequency Transformer T1 adopts 50W power 24VAC to export, for carrying out step-down to the civil power of input, dividing for numerical controlled voltage apparatus control portion provides power supply.
Rectifier bridge D2 and D4 all adopts 1N4007 to form, and adopts the paster M7 of DO-214AC encapsulation, for carrying out rectification to the alternating voltage of input.
Voltage after rectifier bridge D2 rectification is delivered to switching power source chip U4 and carries out first time step-down after electric capacity C5, C1, C6 filtering, and step-down is 15V, and then is delivered to switching power source chip U2 and carries out second time step-down, and step-down is 5V voltage;
Voltage after rectifier bridge D4 rectification delivers to switching power source chip U3 after electric capacity C8, C10 filtering, is 24V voltage by voltage transitions;
The output terminal of switching power source chip U4, U2, U3 is provided with the peripheral circuit of fast recovery diode IN5822 and LC filtering circuit composition.
The principle of work of this device is as follows: this device increases new control device to realize the function of digital control pressure regulation on original manual voltage regulator, when outside civil power 220V alternating voltage inputs to the input end of manual voltage regulator.When controllers inputs the output voltage of needs on button, Single-chip Controlling gathers the alternating voltage of civil power and electric current by output current sampling and shaping circuit and output voltage sampling and shaping circuit, singlechip controller can according to internal calculation, Driving Stepping Motor subdivision driver rotates with Driving Stepping Motor, thus realizes the object of adjustment output voltage.In addition, the power supply of whole additional control device be input voltage after power frequency transformation, then carry out the voltage after voltage transformation through accessory power supply and translation circuit thereof.In this voltage regulator operation process, liquid crystal display can show the line voltage of current input, electric current and output voltage information in real time.Meanwhile, Single Chip Microcomputer (SCM) system part leaves Interface for digital communication SPI and SCI, and user connects this communication interface by other peripheral control unit, implements intelligent pressure regulating and controls.
As shown in Figure 4, a kind of simple nc one-way communication low pressure accurate voltage regulating method, comprises the steps:
The first step: system electrification initialization.Input civil power, after auxiliary transformer and accessory power supply translation circuit, is powered to whole system.Single-chip Controlling is power-up initializing first, carries out timer, SCI, SPI communication interface, the peripheral hardware such as clock and analog to digital converter initialization, simultaneously initialization liquid crystal display.System enters second step execution afterwards.
Second step: scanning button also enters interrupt latency state.After system initialization, first read output voltage and the electric current of numerical control voltage regulator, and then upgrade display screen displaying contents.Enter key scan and interrupt latency state afterwards, in this condition, the button of the continuous scan setting of system, has judged whether key-press input (user directly arranges output voltage by button).Also wait for the communication disruption of SCI and SPI interface, to receive the steering order input of peripheral control unit simultaneously.
When pressing when there being button and set output voltage or interrupt occurring, system enters the 3rd step and performs
3rd step: calculating voltage difference also implements the control that FUZZY ALGORITHMS FOR CONTROL carries out stepper motor.Adopt the additional subdivision driver of stepper motor to control in system, very high controlling angle precision can be reached, thus also can carry out fine Voltage Cortrol.The error calculation of its adjustment is as follows:
Stepper motor step pitch corner 0.9 °, after carrying out maximum 32 segmentations, stepper motor often receives a pwm pulse, and angle rotatable Φ=0.9 °/32=0.0281 °, compared to full scale 0-250V pressure regulator, minimum precision is Φ/360*250V=0.02V.
For reaching higher precision, also need to use comparatively meticulous FUZZY ALGORITHMS FOR CONTROL.In the third step, first controller calculates the difference of setting voltage and current output voltage, and implements FUZZY ALGORITHMS FOR CONTROL adjustment.
When difference is larger, use higher stepper motor rotating speed; When difference is moderate, adjustment stepper motor is middling speed; When difference is less, adjustment stepper motor is low speed; When difference is minimum, adjustment stepper motor is minimum speed (under minimum speed adjustment, precision reaches as high as 0.02V);
In the process, constantly gather pressure regulator output voltage, and adopt control algolithm to carry out Voltage Cortrol.When voltage reaches within the scope of permissible error, terminate adjustment.And enter the 4th step execution.
4th step: Voltage Cortrol is complete, returns second step and enters key scan and interrupt latency state.
More than show and describe the ultimate principle of invention originally, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; under the prerequisite of not de-spirit and scope of the invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (8)
1. a simple nc one-way communication low pressure accurate voltage regulating device, comprise singlechip controller, manual voltage regulator, button, liquid crystal display and display circuit, Industrial Frequency Transformer, it is characterized in that, also comprise stepper motor and stepper motor subdivision drive circuit, output current sampling and shaping circuit, output voltage sampling and shaping circuit, accessory power supply and translation circuit thereof; Singlechip controller input end be connected with output current sampling and shaping circuit, output voltage sampling and shaping circuit, stepper motor subdivision drive circuit, accessory power supply and translation circuit thereof, button; Singlechip controller output terminal is connected with liquid crystal display circuit; Display circuit output terminal is connected with liquid crystal display;
220V external communication electricity is delivered to the input end of Industrial Frequency Transformer, manual voltage regulator, and the output terminal of Industrial Frequency Transformer is connected with accessory power supply and translation circuit thereof; The output terminal of manual voltage regulator is connected with output current sampling and shaping circuit, output voltage sampling and shaping circuit; Arrange voltage at the output terminal of manual voltage regulator to export; The handle of manual voltage regulator is connected with stepper motor, and stepper motor is connected with stepper motor subdivision drive circuit, and stepper motor subdivision drive circuit is used for Driving Stepping Motor;
Output current sampling and shaping circuit adopt standard current transformer, the semaphore of induction output current, and do Shape correction by the circuit that amplifier is formed to this semaphore, so that Chip Microcomputer A/D collection;
Output voltage sampling and shaping circuit adopt standard potential transformer, the semaphore of induction output level, and do Shape correction by the circuit that amplifier is formed to this semaphore, so that Chip Microcomputer A/D collection;
Stepper motor and sub-driver circuit thereof drive the rotatable handle on manual voltage regulator to realize pressure regulation for Single-chip Controlling stepper motor;
Power frequency transformation and auxiliary power circuit part thereof adopt 50W24VAC to export Industrial Frequency Transformer, are equipped with accessory power supply and translation circuit thereof, and for system provides+24V power supply and+5V power supply, wherein+24V power supply is that driving stepper motor is used; + 5V power supply is that Single Chip Microcomputer (SCM) system is used;
Manual voltage regulator is for bearing the task of realistic simulation pressure regulation.
2. the easy numerical control one-way communication low pressure accurate voltage regulating device of a kind of letter sampling according to claim 1, it is characterized in that, output current sampling and shaping circuit, comprise current sampling circuit, anti-phase ratio circuit, rectification circuit, filtering circuit, bleeder circuit, impedance inverter circuit;
The output voltage of current sampling circuit after anti-phase ratio circuit amplifies first through rectification circuit, and after the smoothing filtering of filtering circuit, successively after the bleeder circuit dividing potential drop that R5, R7 are formed, be delivered to impedance inverter circuit again, deliver to single-chip microcomputer input end after impedance transformation is carried out to voltage and carry out voltage sample, calculate the current value of out-put supply.
3. the easy numerical control one-way communication low pressure accurate voltage regulating device of a kind of letter sampling according to claim 2, it is characterized in that, current sampling circuit is made up of current transformer U1, resistance R1, resistance R2, electric capacity C1 and amplifier AR1; R1 is sampling resistor, R2, C1 phase corrective network in series.
4. the easy numerical control one-way communication low pressure accurate voltage regulating device of a kind of letter sampling according to claim 2, it is characterized in that, resistance R4, R3 and amplifier U2A form anti-phase ratio circuit.
5. the easy numerical control one-way communication low pressure accurate voltage regulating device of a kind of letter sampling according to claim 1, it is characterized in that, auxiliary power circuit comprises Industrial Frequency Transformer T1, rectifier bridge D2 and D4, switching power source chip U4, U2, U3, and filter capacitor, inductance and the fast recovery diode IN5822 needed for switching power source chip periphery;
Switching power source chip U4 and U2 all adopts LM2576, and wherein U4 is fixing 15V output, and U2 exports, for the pulsating direct current after rectification being become the+5V burning voltage needed for Single Chip Microcomputer (SCM) system for fixing 5V; Switching power source chip U3 adopts 3A to fix the LM2596 of 24V output, for the pulsating direct current after rectification being become the+24V burning voltage needed for driving system of stepping motor.
6. the easy numerical control one-way communication low pressure accurate voltage regulating device of a kind of letter sampling according to claim 1, it is characterized in that, singlechip controller adopts STC12C5628AD single-chip microcomputer.
7. pressure regulation method, is characterized in that, comprises the steps:
Step 1: system electrification initialization; First Single-chip Controlling first power-up initializing, then carry out timer, SCI, SPI communication interface, the peripheral hardware such as clock and analog to digital converter initialization, the liquid crystal display of initialization simultaneously;
Step 2: scanning button also enters interrupt latency state;
After system initialization, first read output voltage and the electric current of numerical control voltage regulator, and then upgrade display screen displaying contents; Enter key scan and interrupt latency state afterwards, in this condition, the button of the continuous scan setting of system, has judged whether key-press input, also waits for the communication disruption of SCI and SPI interface simultaneously, to receive the steering order input of peripheral control unit;
When pressing when there being button and set output voltage or interrupt occurring, system enters step 3;
Step 3: adopt fuzzy algorithm, the rotating speed of adjustment stepper motor;
Calculating voltage difference also implements the control that FUZZY ALGORITHMS FOR CONTROL carries out stepper motor rotating speed; Adopt the additional subdivision driver of stepper motor to control in system, very high controlling angle precision can be reached, thus also can carry out fine Voltage Cortrol;
Step 4: Voltage Cortrol is complete, returns second step and enters key scan and interrupt latency state.
8. pressure regulation method according to claim 7, is characterized in that, in step 3, first controller calculates the difference of setting voltage and current output voltage, and implements FUZZY ALGORITHMS FOR CONTROL adjustment:
When difference is larger, use higher stepper motor rotating speed;
When difference is moderate, adjustment stepper motor is middling speed;
When difference is less, adjustment stepper motor is low speed;
When difference is minimum, adjustment stepper motor is minimum speed;
In the process, constantly gather pressure regulator output voltage, and adopt control algolithm to carry out Voltage Cortrol; When voltage reaches within the scope of permissible error, terminate adjustment.
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| CN110057306A (en) * | 2019-06-03 | 2019-07-26 | 呜啦啦(广州)科技有限公司 | The driving device and its auto zero initial method of all diameter sensors |
| CN110108234A (en) * | 2019-06-03 | 2019-08-09 | 呜啦啦(广州)科技有限公司 | Current type compound bending sensor drive device and auto zero initial method |
| CN110108234B (en) * | 2019-06-03 | 2024-06-07 | 呜啦啦(广州)科技有限公司 | Current type bidirectional bending sensor driving device and automatic return-to-zero initialization method |
| CN110057306B (en) * | 2019-06-03 | 2024-06-07 | 呜啦啦(广州)科技有限公司 | Driving device of circumference sensor and automatic zeroing initialization method thereof |
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Application publication date: 20160113 |