CN105048929B - Wireless remote control type irrigation pump machine governing system and control method with protection device - Google Patents
Wireless remote control type irrigation pump machine governing system and control method with protection device Download PDFInfo
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- CN105048929B CN105048929B CN201510547148.1A CN201510547148A CN105048929B CN 105048929 B CN105048929 B CN 105048929B CN 201510547148 A CN201510547148 A CN 201510547148A CN 105048929 B CN105048929 B CN 105048929B
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Abstract
Wireless remote control type irrigation pump machine governing system and control method with protection device, it is related to irrigation pump machine governing system and its control method.The present invention is low in order to solve agriculture pump machine irrigation efficiency, easily occurs the excessive problem for causing water-supply-pipe to disconnect or burst of pressure during use.The output end of hydraulic pressure detection modulate circuit of the invention connects the A/D inputs of dsp controller; the input connection governor circuit of Drive Protecting Circuit; the output end of Drive Protecting Circuit connects the PDPINTA ports of dsp controller; order reception apparatus are arranged on dsp controller; the output end of order reception apparatus connects the XD data input pins of dsp controller; Command Launch Unit and order reception apparatus are set up data transfer and are connected by wireless network, and display screen sets up bidirectional data transfers by data bus connection and dsp controller.The present invention carries out remote monitoring and stepless speed regulation to irrigation pump machine, and control effect more preferably, regulates and controls more accurate.
Description
Technical field
The present invention relates to irrigation pump machine governing system and its control method, and in particular to the wireless remote control with protection device
Formula irrigation pump machine governing system and its control method, belong to electric machine speed regulation protection technique field.
Background technology
At present, domestic electric machine speed regulation control technology is simple to control in terms of irrigation pump machine wireless timing, intelligence degree
It is very low, it is impossible to meet modern agricultural development requirement.Existing agricultural irrigation pump machine, substantially or traditional immersible pump machine, it is impossible to
Carry out variable voltage control control, it is impossible to when meeting people under different situations to pump power requirement, such as irrigation bulk farmland, I
Think the electromechanical pressure of elevator pump, improve its unit interval water yield；When irrigating dish seedling, height wheat higher, it is intended that current
Diminish, reduction washes away infringement to crops, automatic positive and negative regulation and control can't be realized in addition.In recent years for convenience to pump machine
Start-up and shut-down control, in the market occurs in that the controller that controlled in wireless pump machine starts, stops, but is mostly simple start-up and shut-down control, and
And also not to some system protections of pump machine.Additionally, when people irrigated farmland farther out, it is necessary to many connections of water-supply-pipe,
It is easy for water pipe bending during long transmission distance, causes water pipe junction, pump machine water outlet hydraulic pressure to be increased sharply, causes water pipe to take off
Section bursts, and can influence irrigation efficiency, also brings economic loss.
The content of the invention
It is low the invention aims to solve agriculture pump machine irrigation efficiency, it is impossible to realize the wireless timing of motor, also not
, easily there is the excessive problem for causing water-supply-pipe to disconnect or burst of pressure in energy controlled in wireless pump machine rotating during use.
The technical scheme is that：Wireless remote control type irrigation pump machine governing system with protection device, including DSP controls
Device processed, governor circuit, pump electromechanics machine, hydraulic pressure detection modulate circuit, display screen, Drive Protecting Circuit and wireless remote controller, institute
Stating wireless remote controller includes Command Launch Unit and order reception apparatus, the output end connection master control electricity of the dsp controller
Road, the output end connection pump electromechanics machine of governor circuit, pump electromechanics machine is arranged in irrigation pump machine, the output end connection of irrigation pump machine
Waterline, the input connection waterline of the hydraulic pressure detection modulate circuit, the output end of hydraulic pressure detection modulate circuit connects
Connect the A/D inputs of dsp controller, the input connection governor circuit of Drive Protecting Circuit, the output end of Drive Protecting Circuit
Connect dsp controller PDPINTA ports, the order reception apparatus be arranged on dsp controller on, order reception apparatus it is defeated
Go out the XD data input pins of end connection dsp controller, Command Launch Unit and order reception apparatus set up number by wireless network
Connected according to transmission, the display screen sets up bidirectional data transfers by data bus connection and dsp controller.
The Command Launch Unit includes instruction issue circuit, and instruction issue circuit includes command input, coding chip
And wireless sending module, command input includes speed governing button, and the output end of the coding chip is defeated with wireless sending module
Enter end and set up connection.
The order reception apparatus include command reception circuit, and command reception circuit includes wireless receiving module and decoding core
Piece, the output end of the wireless receiving module connects the input of decoding chip, and the output end of decoding chip is corresponding in turn to connection
The XD inputs of dsp controller.
The governor circuit includes uncontrollable three phase rectifier bridge circuit, filter circuit, buffer circuit and IPM modules, filtering
Circuit includes two electric capacity of series connection, and buffer circuit includes buffer resistance, noninductive electric capacity and recovery diode, buffer resistance and two
Pole pipe is simultaneously attempted by the two ends of rectifier bridge after connecing with noninductive capacitances in series, the filter circuit, and buffer circuit is attempted by filtered electrical
The two ends on road, two inputs of IPM modules are attempted by buffer circuit two ends, the uncontrollable rectifier bridge of three-phase, and they are by power supply
Three-phase alternating current full-wave rectification into direct current, filter capacitor in addition to the voltage ripple after filtering rectification, also in rectification circuit and inversion
Play decoupling between device, interfered with eliminating, this just provides necessary reactive power to the motor as inductive load.
Be made up of inverter circuit in inverter circuit IPM integrated power modules six full-control type MOSFET, inverter circuit rectification after it is straight
The electric another mistake of stream is changed into the adjustable alternating current of amplitude, frequency, it is contemplated that MOSFET is protected, plus an absorption in inverter bridge
Buffer circuit, the noninductive electric capacity in circuit, buffer resistance and fast recovery diode, constitute power absorption buffer circuit, can have
The suppression surge of effect.
The wireless remote control type irrigation pump machine governing system with protection device includes that line voltage detects modulate circuit, institute
Stating line voltage detection modulate circuit includes voltage sensor, sampling resistor, filter resistance, filter capacitor and amplifying circuit, described
The input of voltage sensor terminates at the output end of the IPM modules of governor circuit, and the output end of voltage sensor is connected respectively adopts
One end of sample resistance and one end of filter resistance, the other end ground connection of sampling resistor, the other end of filter resistance connect filter respectively
One end of ripple electric capacity and the input of amplifying circuit, the other end ground connection of filter capacitor, the output end connection DSP controls of amplifying circuit
The A/D transition module interfaces of device processed.
The wireless remote control type irrigation pump machine governing system with protection device includes some photoelectric isolating circuits, photoelectricity
The number of isolation circuit is identical with the PSM signal output part numbers of DSP, photoelectric isolating circuit include be sequentially connected buffer,
First optocoupler and the second optocoupler, the output end of each pwm signal of the dsp controller is respectively by corresponding Phototube Coupling electricity
Road is set up with the IPM modules of governor circuit and is connected.
The Drive Protecting Circuit first input end, the second input, the 3rd input, the 4th input, four photoelectricity
Coupler and a NAND gate, first input end, the second input and the 3rd input connect three upper bridges of IPM modules respectively
Arm, the 4th input connects three lower bridge arms of IPM modules, and first input end, the second input, the 3rd input and the 4th are defeated
Enter end to be connected with NAND gate foundation by photoelectrical coupler respectively, the output end of NAND gate connects the PDPINTA ends of dsp controller
Mouthful, fault detect protection circuit is added for governor circuit Converting Unit IPM modules, in excessively stream, overvoltage, the real-time guarantor for overheating
Shield, once the controller that breaks down can in real time block control signal output, the connection of cut-out main circuit and pump electromechanics machine.
The hydraulic pressure detection modulate circuit includes pressure sensor, the first amplifier, RC filter circuits and the second amplifier,
The output end of the pressure sensor accesses the in-phase input end of the first amplifier, and the output end of the first amplifier is filtered by RC
Circuit accesses the in-phase input end of the second amplifier, and the A/D modular converters of the output end connection dsp controller of the second amplifier connect
Mouthful.
The wireless remote control type irrigation pump machine governing system with protection device includes electric machines test modulate circuit, described
Electric machines test modulate circuit includes photoelectric encoder, isolation optocoupler and Schmidt trigger, and it is electromechanical that photoelectric encoder is arranged on pump
On the rotor of machine, the output end of photoelectric encoder is connected by optocoupler with Schmidt trigger foundation, Schmidt trigger it is defeated
Go out the QEP inputs of end connection dsp controller, electric machines test modulate circuit is not only monitored to the rotating speed of motor, while
The control to pump machine motor positive and inverse is realized, people is eliminated and is exchanged the trouble that phase line realizes turning to regulation manually；Also
It is that line voltage, motor speed, motor positive and inverse show, facilitates man-machine interaction, real time inspection motor working condition.
Based on the control method of the wireless remote control type irrigation pump machine governing system with protection device, including following step
Suddenly：
Step one, system and dsp controller are initialized after, motor is operated in middling speed using Command Launch Unit
Cruising condition；
Step 2, length press Command Launch Unit speed governing button, and dsp controller adjusts PWM letters according to the duration of input instruction
Number dutycycle, speed governing is carried out to motor.
The method of the duration regulation output pwm signal dutycycle described in step 2 according to input instruction is specially：
α=kt,
α is the dutycycle of output pwm signal in formula, and t is the duration of input instruction, and k is scale factor.
α spans be 0 to 1 between, k values change with the maximum duration of t, and the maximum range of the t is
Between 30s to 60s.
The present invention has the following effects that compared with prior art：The present invention is entered by wireless remote control technology to irrigation pump machine
Row remote monitoring and stepless speed regulation, more preferably, regulation and control are more preferably smart for control effect.For anti-antipriming pipe bending, cause water pipe disconnect, very
Occur to explosion situation, hydraulic pressure real-time detection module is with the addition of in pump machine water outlet, once detecting hydraulic pressure herein reaches water
Pipe ability to bear 80% when, controller is with regard to automatic control program by relay disconnecting power switch, and it is right to play in real time
The protective effect of water pipe, raising efficiency reduces unnecessary loss.The working order of pump electromechanics machine is shown by display screen, is passed through
Pump electromechanics machine positive and reverse steering show, it is to avoid obscuring during operation smaller with motor normal voltage, because voltage is smaller and pump machine
During reversion, output water-carrying capacity all very littles.Switch to rotate forward during reversion, it is necessary to just be shifted gears when tuning up power.
Brief description of the drawings
Fig. 1 is structured flowchart of the invention；
Fig. 2 is governor circuit figure of the invention；
Fig. 3 is wireless control directives radiating circuit figure of the invention；
Fig. 4 is wireless control directives receiving circuit figure of the invention；
Fig. 5 is photoelectric isolating circuit circuit diagram of the invention；
Fig. 6 Drive Protecting Circuit figures of the invention；
Fig. 7 is line voltage detection modulate circuit figure of the invention；
Fig. 8 is hydraulic pressure real-time detection modulate circuit figure of the invention；
Fig. 9 is electric machines test modulate circuit figure of the invention；
Figure 10 is control flow chart of the present invention；
Figure 11 is the flow chart that controller of the present invention protects interrupt routine；
Figure 12 is the power circuit diagram of the dsp controller of invention.
Specific embodiment
Specific embodiment of the invention is described with reference to the drawings, as shown in figure 1, of the invention with the wireless of protection device
Distance type irrigation pump machine governing system, including dsp controller, governor circuit, pump electromechanics machine M, hydraulic pressure detection modulate circuit, display
Screen, Drive Protecting Circuit and wireless remote controller, the wireless remote controller include Command Launch Unit and order reception apparatus,
The output end connection governor circuit of the dsp controller, the output end connection pump electromechanics machine M of governor circuit, pump electromechanics machine M installations
In irrigation pump machine, the output end connection waterline of irrigation pump machine, the input connection of the hydraulic pressure detection modulate circuit is defeated
Water pipeline, the output end of hydraulic pressure detection modulate circuit connects the A/D inputs of dsp controller, the input of Drive Protecting Circuit
Connection governor circuit, the output end of Drive Protecting Circuit connects the PDPINTA ports of dsp controller, the order reception apparatus
On dsp controller, the output end of order reception apparatus connects the XD data input pins of dsp controller, instruction issue dress
Put and data transfer connection is set up by wireless network with order reception apparatus, the display screen is controlled by data bus connection with DSP
Device sets up bidirectional data transfers.The dsp controller of present embodiment with digital signal processor TMS320F2812 as core, institute
It is three phase alternating current motor to state pump electromechanics machine M.
As shown in figure 3, the Command Launch Unit includes instruction issue circuit, instruction issue circuit includes instruction input
End, coding chip U1 and wireless sending module Y1, the input of the command input connection coding chip U1, coding chip
The output end of PT2262 is set up with the input of wireless sending module Y1 and is connected.The command input and coding chip PT2262
Between and be connected to circuit of LED, input instruction input includes six instruction input buttons, respectively SB1, SB2,
SB3, SB4, SB5 and SB6, described SB1, SB2 and SB3 are used for realizing the electrodeless rise of motor, cruising at moderate speed operation, electrodeless lower regulation and control
System, the rotating of SB4, SB5 controlled motor, SB6 is the start and stop button of motor.
As shown in figure 4, the order reception apparatus include command reception circuit, command reception circuit includes wireless receiving mould
The input of the output end connection decoding chip U2 of block Y2 and decoding chip U2, the wireless receiving module Y2, decoding chip U2
Output end be corresponding in turn to connection dsp controller XD inputs.
The coding chip U1 of present embodiment is PT2262 chips, and decoding chip is PT2272 chips, wireless transmitter module
It is YG300U-S, wireless receiving module is YG300U-R, and dsp controller is to tri- control button input instructions of SB1, SB2, SB3
State carries out real time scan, and original levels status scan is only carried out to the button of SB4, SB5 two.When certain key is pressed, can all have
Light emitting diode is lighted, and illustrates that this instruction is effective, is then instructed and is input to wireless transmitter module via the DOUT ports of PT2262
YG300U-S, sends out control instruction through this, and the geocoding end address setting of the PT2262 need to be with PT2272-L6 mono-
Cause.After wireless receiving module YG300U-R receives instruction, the Din ports of PT2272-L6 are sent to, it is defeated by instruction decoding
Go out the XD data input pins that FPDP is input to dsp controller, realize the various regulation and control of motor.
As shown in Fig. 2 the governor circuit include uncontrollable three phase rectifier bridge circuit 1, filter circuit 2, buffer circuit 3,
IPM modules 4 and power switch K, are respectively the diode being connected in series on three bridge arms of uncontrollable three phase rectifier bridge circuit 1
VD1 and diode VD2, diode VD3 and VD4 and diode VD5 and diode VD6, filter circuit include the first electric capacity of series connection
C1 and the second electric capacity C2, buffer circuit include buffer resistance R, noninductive electric capacity C3 and recovery diode VD7, buffer resistance R with it is extensive
Answer diode VD7 and connected with noninductive electric capacity C3 after connecing, the filter circuit 2 is attempted by the bridge arm of uncontrollable three-phase commutation bridge 1
Two ends, power switch K is located between uncontrollable three phase rectifier bridge circuit 1 and filter circuit 2, and power switch K is entered by dsp controller
Row control, buffer circuit 3 is attempted by the two ends of filter circuit 2, and the IPM modules include the first bridge arm, second that are connected in parallel
Bridge arm and the 3rd bridge arm, the first bridge arm include that the power tube T1 being serially connected and power tube T4, the second bridge arm include the work(of series connection
Rate pipe T3 and power tube T6, the 3rd bridge arm includes two inputs difference of the power tube T5 of series connection and power tube T2, IPM module
It is connected on the two ends of buffer circuit 3.
The wireless remote control type irrigation pump machine governing system with protection device includes that line voltage detects modulate circuit, such as
Shown in Fig. 7, the line voltage detection modulate circuit includes voltage sensor 5, sampling resistor R2, filter resistance R3, filter capacitor
C4 and amplifying circuit, amplifying circuit include the first operational amplifier 6 and the second operational amplifier 7, the voltage sensor 5 it is defeated
Enter to terminate at the output end of the IPM modules 4 of governor circuit, the output end of voltage sensor connects one end of sampling resistor R2 respectively
With one end of filter resistance R3, the other end of sampling resistor R2 is grounded, and the other end of filter resistance R3 connects filter capacitor respectively
One end of C4 and the inverting input of the first operational amplifier 6, the output end of the first operational amplifier 6 connect the second operation amplifier
The in-phase input end of device 7, the output end of the second operational amplifier 7 connects the A/D transition module interfaces of dsp controller, filtered electrical
Hold the other end ground connection of C4.The voltage sensor is the LV100 voltage sensors of LEM companies, the He of the first operational amplifier 6
The model of second operational amplifier 7 is OP27, and it determines rated voltage between 100V to 2500V, there is sufficiently large appearance allowance
Avoid damaging device during line fault.The output of LV100 voltage sensors is current signal, in order to measure voltage, in secondary
Output concatenation sampling resistor R2, sample conversion compares Kn=Ip/Is=10mA/50mA, wherein IpIt is primary side rated current, IsIt is secondary
Rated current, while to be also filtered the treatment with impedance matching, filter resistance R3 and filter capacitor C4 constitutes single order low pass
Filter circuit, accesses the first infinitely great operational amplifier 6 of input impedance, plays a part of impedance matching.Linked more than
The treatment of circuit, obtains a low pressure output signal proportional to input dc power, is then delivered to the A/D treatment moulds of DSP
Block, is calculated and displayed the line voltage for measuring.
The wireless remote control type irrigation pump machine governing system with protection device includes some photoelectric isolating circuits, photoelectricity
The number of isolation circuit is identical with the PSM signal output part numbers of DSP, such as Fig. 5, and shown photoelectric isolating circuit includes being sequentially connected
Buffer 8, the first optocoupler 9 and the second optocoupler 10, the output end of each pwm signal of the dsp controller passes through phase respectively
The photoelectric isolating circuit answered is set up with the IPM modules of governor circuit and is connected.The buffer 8 is SN7407, and the first optocoupler 9 is
6N137, the second optocoupler 10 is HCPL4504, and the six road pwm pulse signals that dsp controller sends are exported via open collector
Buffer SN7407 exports the driving force of pulse to improve, because inversion drive module needs to be isolated, so passing through again
High-speed photoelectric coupler 6N137 drives IPM modules.What is exported will also drive U phases Up to drive again via high speed photo coupling HCPL4504
Dynamic voltage signal, in order to prevent the excessive misoperation of voltage change ratio, PWM1 inputs will connect pull-up resistor R4.
As shown in fig. 6, the Drive Protecting Circuit first input end UF0, the second input VF0, the 3rd input WF0,
4th input F0, the first photoelectrical coupler 11, the second photoelectrical coupler 12, the 3rd photoelectrical coupler 13, the 4th photoelectric coupling
Device 14 and NAND gate 15, first input end UF0, the second input VF0 and the 3rd input WF0 connect the three of IPM modules respectively
Individual upper bridge arm, the 4th input F0 connects three lower bridge arms of IPM modules, first input end UF0, the second input VF0, the 3rd
Input WF0 and the 4th input F0 pass through light the first photoelectrical coupler 11, the second photoelectrical coupler 12, the 3rd smooth thermocouple respectively
The photoelectrical coupler 14 of clutch 13 and the 4th is set up with NAND gate 15 and is connected, the output end connection dsp controller of NAND gate 15
PDPINTA ports.The wherein upper bridge arm of inverter bridge three respectively has a protection signal to export, respectively UF0, VF0, WF0, under three
Bridge arm shares an output protection signal F0.Fault-free Shi Ge roads protection signal output high level, photoelectrical coupler TPL521 is not
Conducting, it is high level to be connected to four with the input of the 74LS21 of door.When a drive signal is faulty in upper and lower bridge arm,
Output is low level, and photoelectrical coupler TPL521 conductings are changed into low level with the input signal of door, and output is also changed into low therewith
Level, the PDPINTA for being now connected to DSP is detected by a trailing edge, triggers the fault interrupting program of DSP, blocks six tunnels
Pwm pulse signal is exported, and plays the unit effect of protection IPM module drives.
The power supply that TMS320F2812 chips need has：Dsp chip core power VDD, analog circuit power supply VDDASupplied with I/O
Power supply VDDIO.Supply voltage requirement be 1.8V and 3.3V, had to during design consider each several part power supply voltage accuracy and
The size of supply current.
Present embodiment uses TPS73HD138 chips power supply for needed for DSP is provided, and it is the electricity of two-way low voltage difference output
Source chip, can export the fixed voltage value of 3.3V and 1.8V, and controlled output is distinguished by two independent Enable Pins, the output per road
Electric current can reach 750mA.Additionally, the chip can also provide the power-on reset signal of Low level effective, output 12 for dsp controller
Shown, the output end of TPS73HD138 chips is respectively the kernel of dsp controller and periphery powers, TPS73HD138 chips in figure
Input be respectively equipped with the first filter regulator circuit 23 and the second filter regulator circuit 24, two of TPS73HD138 chips are defeated
Go out end and be respectively equipped with electric capacity of voltage regulation C5 and C6.
As shown in figure 8, the hydraulic pressure detection modulate circuit includes pressure sensor 16, the first amplifier 17, RC filtered electricals
The amplifier 19 of road 18 and second, the output end of the pressure sensor accesses the in-phase input end of the first amplifier 17, and first puts
The output end of big device 17 accesses the in-phase input end of the second amplifier 19, the output of the second amplifier 19 by RC filter circuits 18
The A/D transition module interfaces of end connection dsp controller.The model of the first amplifier 17 and the second amplifier 19 is respectively LM1458
And LM358.For the measure of hydraulic pressure, using Hall pressure sensor, physical quantity pressure signal is converted to the telecommunications of analog quantity
Number, it is input in amplification, filtering, the shaping circuit that LM1458, LM358 and resistance, electric capacity are constituted, it is then delivered to the A/D of DSP
Processing module, is calculated and displayed the hydraulic pressure of the water outlet pipe part for measuring.
The wireless remote control type irrigation pump machine governing system with protection device includes electric machines test modulate circuit, such as schemes
Shown in 9, the electric machines test modulate circuit includes photoelectric encoder 20, isolation optocoupler 21 and Schmidt trigger 22, and photoelectricity is compiled
Code device 20 is arranged on the rotor of pump electromechanics machine, and the output end of photoelectric encoder 20 passes through isolation optocoupler 21 and Schmidt trigger
22 set up connection, and the output end of Schmidt trigger 22 connects the QEP inputs of dsp controller.The design uses photoelectric coding
Device is used as velocity sensor, the photoelectric encoder produced using Omron Corp.Its resolution ratio is 1000P/R, i.e. every turn of motor
One circle encoder code disc exports 1000 pulses.The type encoder has three output A, B, Z three-phases, and A, B phase are used for measuring speed,
A, B phase are the orthogonal signalling that phase differs 90 degree, and the direction that motor is rotated also is can obtain by the priority phase relation for staggering.Compile
Code device coding send square-wave signal, via TLP1114A high speed photo couplings isolation be transported to 74F14 Schmidt triggers buffering, it is whole
The QEP event management units of DSP are input to after shape, DSP capture pulses eventually pass the program that tests the speed and calculate defeated along the number for rising
Go out the rotating speed of motor.
Based on the control method of the wireless remote control type irrigation pump machine governing system with protection device, including following step
Suddenly：
Step one, system and dsp controller are initialized after, motor is operated in middling speed using Command Launch Unit
Cruising condition；
Step 2, length press Command Launch Unit speed governing button, and dsp controller adjusts PWM letters according to the duration of input instruction
Number dutycycle, speed governing is carried out to motor.
The method of the duration regulation output pwm signal dutycycle described in step 2 according to input instruction is specially：
α=kt (1)
α is the dutycycle of output pwm signal in formula, and t is the duration of input instruction, and k is scale factor.
Between 0 to 1, k values are with the maximum duration t of t for α spansmaxChange and change, k=1/tmax, in order to
Making to change between output control signal and time more relax smooth, and scale factor k is suitably lower, the maximum length in time of t
It is set as 30s, will not increases followed by t more than this value output signal and change, now k is exactly 1/30, then changes continuing most for t
Big value, k also can be small again therewith, but the duration of trying not is oversize (more than 1min), so adjusts output effect just less
Substantially.
Input instruction is set to six press keys, respectively SB1, SB2, SB3, and this three button realizes that motor M's is electrodeless respectively
Raise, cruising at moderate speed runs, electrodeless downward controls, the rotating of SB4, SB5 controlled motor, SB6 is the start and stop button of motor.
Dsp controller carries out real time scan to tri- control button input instruction states of SB1, SB2, SB3, to the button of SB4, SB5 two only
Carry out original levels status scan.When certain key is pressed, can all there is light emitting diode to light, illustrate that this instruction is effective, then
Instruction is input to YG300U-S wireless transmitter modules via PT2262 coding chip DOUT ports, sends out control instruction through this
Go.After YG300U-R wireless receiving modules receive instruction, the Din ports of PT2272-L6 are sent to, it is defeated by instruction decoding
Go out the XD data input pins that FPDP is input to DSP, realize the various regulation and control of motor, the setting of geocoding end address is needed
It is consistent with PT2272-L6.
Specific control process includes：
Dsp controller compares deposit including T1 timers, T2 timers, T1CNT registers, T2CNT registers and CMPR1
Device；
SB6 presses system startup；
When SB1 presses not loose, SB1 wireless signal instruction inputs, receiving terminal output port persistently keeps high level, DSP controls
Device processed starts to continually scan for the status information of respective input mouthful, the T1 timer timing input instruction states in dsp controller
Duration simultaneously finally writes T1CNT registers, and slowly constantly raises change by the relation of formula (1) according to key press time length
The dutycycle of PWM output signal, and voltage, rotary speed information or the water outlet water-carrying capacity that can be in real time shown according to display screen
The selected pump machine power output of size, when the output water-carrying capacity effect of our needs is reached, unclamp button, now transmission signal
Disappear, receiving terminal keeps state during last release, dsp controller stores PWM control signal duty cycle this moment and keeps output,
The dsp controller storage is last to disconnect moment status information, is also to provide initial information, pump machine for SB3 lowers motor speed
Just maintain to unclamp moment power output, realize that continuous control pump machine rotating speed is raised with this.
When similarly SB3 presses not loose, SB3 wireless signal instruction inputs, receiving terminal output port persistently keeps high level, control
Device response processed treatment, reads the value in T1CNT registers, the T2 timer timing SB3 input port state times and it is final when
Between write T2CNT registers in, at this moment the initial value of modulation is the output control signal corresponding to the value in T1CNT under motor
Size.Dsp controller is slowly constantly lowered by formula (1) the regulation relation according to key press time length and changes PWM output signal
Dutycycle, and the selected pump machine of size of voltage, rotary speed information or water outlet water-carrying capacity can be in real time shown according to display screen
Power output, judges, when the output water-carrying capacity effect of our needs is reached, to unclamp button, and now transmission signal disappears, and receives
End keeps state during last release, and DSP stores PWM control signal duty cycle this moment and keeps output, and the dsp controller is deposited
Storage is last to disconnect moment status information, is also to provide initial information for SB1 raises motor speed, and pump machine just maintains the release moment defeated
Go out power, realize that continuous control pump machine rotating speed is lowered with this.
SB2 is pressed, and reads the numerical value in comparand register CMPR1, and the motor control corresponding to this value is directly exported this moment
Signal.Operation under the rotating speeds such as middling speed is fixed on during setting electric motor starting, when needs leap to middling speed from high speed or low speed
When, press SB2 keys, processor scan process initial triggering level that time, pump machine is not changed according to key press time length
Rotating speed, unlike SB1, SB3 keep real time scan input port state.Need to keep just to press SB2 during middle-grade traveling at the uniform speed.This is pressed
Key design is raised when being for electric motor starting, downward provides initial baseline value, while also for motor is in higher or lower operation shape
Middling speed operation provides convenient is passed directly under state.
When hydraulic pressure detection modulate circuit detects hydraulic pressure more than water pipe limit ability to bear, into interruption defence program, DSP
Controller control power switch K disconnects, and cuts off main circuit power；During Drive Protecting Circuit detection IPM inside modules abnormal signals,
Interruption defence program is immediately entered, dsp controller blocks the output of pwm signal, and the interrupt routine is written as NMI can not be shielded
Highest interruption subroutine is covered, no matter under what conditions, as long as faulty just treatment in time, reaches higher level protection control
Device effect.
Claims (8)
1. the wireless remote control type irrigation pump machine governing system of protection device is carried, it is characterised in that：Including dsp controller, master control
Circuit, pump electromechanics machine, hydraulic pressure detection modulate circuit, display screen, Drive Protecting Circuit and wireless remote controller, the wireless remote control
Device includes Command Launch Unit and order reception apparatus, the output end connection governor circuit of the dsp controller, governor circuit
Output end connection pump electromechanics machine, pump electromechanics machine is arranged in irrigation pump machine, the output end of irrigation pump machine connection waterline, institute
State the input connection waterline of hydraulic pressure detection modulate circuit, the output end connection dsp controller of hydraulic pressure detection modulate circuit
A/D inputs, Drive Protecting Circuit input connection governor circuit, Drive Protecting Circuit output end connection DSP control
The PDPINTA ports of device, the order reception apparatus are arranged on dsp controller, the output end connection DSP of order reception apparatus
The XD data input pins of controller, Command Launch Unit and order reception apparatus are set up data transfer and are connected by wireless network,
The display screen sets up bidirectional data transfers by data bus connection and dsp controller；The governor circuit includes uncontrollable three-phase
Rectifier circuit, filter circuit, buffer circuit and IPM modules, filter circuit include two electric capacity of series connection, and buffer circuit includes
Buffer resistance, noninductive electric capacity and recovery diode, buffer resistance and diode and after connecing with noninductive capacitances in series, the filtered electrical
Road is attempted by the two ends of rectifier bridge, and buffer circuit is attempted by the two ends of filter circuit, and two inputs of IPM modules are connected on respectively
Buffer circuit two ends；The wireless remote control type irrigation pump machine governing system with protection device includes line voltage detection conditioning electricity
Road and some photoelectric isolating circuits, line voltage detection modulate circuit include voltage sensor, sampling resistor, filter resistance,
Filter capacitor and amplifying circuit, the input of the voltage sensor terminate at the output end of the IPM modules of governor circuit, and voltage is passed
The output end of sensor connects one end of sampling resistor and one end of filter resistance, the other end ground connection of sampling resistor, filtering respectively
The other end of resistance connects one end of filter capacitor and the input of amplifying circuit respectively, and the other end ground connection of filter capacitor is put
The output end of big circuit connects the A/D transition module interfaces of dsp controller, the number of photoelectric isolating circuit and the pwm signal of DSP
Output end number is identical, and photoelectric isolating circuit includes the buffer, the first optocoupler and the second optocoupler that are sequentially connected, the DSP controls
The output end of each pwm signal of device processed is set up by the IPM modules of corresponding photoelectric isolating circuit and governor circuit connect respectively
Connect.
2. the wireless remote control type irrigation pump machine governing system of protection device is carried according to claim 1, it is characterised in that：Institute
Stating Command Launch Unit includes instruction issue circuit, and instruction issue circuit includes command input, coding chip and wireless transmission
Module, command input includes speed governing button, and the output end of the coding chip is set up with the input of wireless sending module and connected
Connect.
3. the wireless remote control type irrigation pump machine governing system of protection device is carried according to claim 1, it is characterised in that：Institute
Stating order reception apparatus includes command reception circuit, and command reception circuit includes wireless receiving module and decoding chip, the nothing
The output end of line receiver module connects the input of decoding chip, and the output end of decoding chip is corresponding in turn to connection dsp controller
XD inputs.
4. the wireless remote control type irrigation pump machine governing system of protection device is carried according to claim 1, it is characterised in that：Institute
Stating Drive Protecting Circuit includes first input end, the second input, the 3rd input, the 4th input, four photoelectrical couplers
With a NAND gate, first input end, the second input and the 3rd input connect three of IPM modules upper bridge arms respectively, the
Four inputs connect three lower bridge arms of IPM modules, first input end, the second input, the 3rd input and the 4th input
Set up with NAND gate by photoelectrical coupler respectively and be connected, the output end of NAND gate connects the PDPINTA ports of dsp controller.
5. the wireless remote control type irrigation pump machine governing system of protection device is carried according to claim 1, it is characterised in that：Institute
Stating hydraulic pressure detection modulate circuit includes pressure sensor, the first amplifier, RC filter circuits and the second amplifier, and the pressure is passed
The output end of sensor accesses the in-phase input end of the first amplifier, and the output end of the first amplifier accesses the by RC filter circuits
The in-phase input end of two amplifiers, the output end of the second amplifier connects the A/D transition module interfaces of dsp controller.
6. the wireless remote control type irrigation pump machine governing system of protection device is carried according to claim 1, it is characterised in that：Institute
Stating the wireless remote control type irrigation pump machine governing system with protection device includes electric machines test modulate circuit, and the electric machines test is adjusted
Reason circuit includes photoelectric encoder, isolation optocoupler and Schmidt trigger, and photoelectric encoder is arranged on the rotor of pump electromechanics machine,
The output end of photoelectric encoder is set up with Schmidt trigger by optocoupler and is connected, the output end connection DSP of Schmidt trigger
The QEP inputs of controller.
7. the control method of the wireless remote control type irrigation pump machine governing system with protection device described in claim 1 is based on, its
It is characterised by：Comprise the following steps：
Step one, system and dsp controller are initialized after, motor is operated in cruising at moderate speed by Command Launch Unit
State；
Step 2, length press Command Launch Unit speed governing button, and dsp controller adjusts pwm signal and accounts for according to the duration of input instruction
Sky ratio, speed governing is carried out to motor.
8. the control method of the wireless remote control type irrigation pump machine governing system of protection device is carried according to claim 7, its
It is characterised by：The method of the duration regulation output pwm signal dutycycle described in step 2 according to input instruction is specially：
α=kt,
α is the dutycycle of output pwm signal in formula, and t is the duration of input instruction, and k is scale factor.
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| CN107086839A (en) * | 2017-05-26 | 2017-08-22 | 浙江大学 | The intelligent controller and its method supplied water for constant pressure frequency conversion |
| CN108988733A (en) * | 2017-05-31 | 2018-12-11 | 徐州安邦信汽车电机科技有限公司 | Vector-control frequency converter for motor |
| CN107942754A (en) * | 2017-12-08 | 2018-04-20 | 柳州市融智科技服务有限公司 | A kind of immersible pump remotely initiated devices |
| CN110043479B (en) * | 2019-05-15 | 2023-12-08 | 济宁安泰矿山设备制造有限公司 | Submersible pump integrated with self-generating speed measuring device |
| CN112615574B (en) * | 2020-12-22 | 2023-03-24 | 河北工大科雅能源科技股份有限公司 | Direct current motor driving device |
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