CN201435010Y - Intelligent position localizer module - Google Patents
Intelligent position localizer module Download PDFInfo
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- CN201435010Y CN201435010Y CN2009201034476U CN200920103447U CN201435010Y CN 201435010 Y CN201435010 Y CN 201435010Y CN 2009201034476 U CN2009201034476 U CN 2009201034476U CN 200920103447 U CN200920103447 U CN 200920103447U CN 201435010 Y CN201435010 Y CN 201435010Y
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Abstract
The utility model relates to an intelligent position localizer module which comprises an analog quantity control signal input circuit, a switching value control signal input circuit, a valve positionsignal acquisition circuit, a valve position signal input circuit, a status indicator lamp, a driving circuit, a function setting button switch,a motor control circuit, a communication interface and amicroprocessor. In the utility model, a control signal sent from an upper computer and a valve position signal collected through a valve poison transducer are sent to the microprocessor, the two signals are subject to high precision A/D sampling in the microprocessor and are converted into digital values through the microprocessor, and then the digital valves are compared based on the presettingperformance characteristic relation to judge if the valve opening is matched with the control signal, if matched, that is, the deviation is zero, a power circuit of a motor is cut off, and the movement of an electric actuating mechanism is prevented, therefore, the electric actuating mechanism is precisely localized.
Description
Technical field
The utility model relates to the electric control unit of electric operator inside in a kind of industrial automation control.
Background technology
In the industrial processes automation control system, adopt instrument such as electric operator, servoamplifier, electric operator to come controlling opening of valve mostly.A large amount of contact switchs and mimic channel and element thereof in each unit instrument, have been used, and wiring complexity between each instrument, distance are far away, therefore resist various industrial noise poor-performings, and it is out of control to cause that easily system regulates, and easy-to-search not after going wrong, maintenance difficult.Be unfavorable for the normal operation of system equipment.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of electric operator inside that is installed in, replace original position signalling transmitter module, and with electric operator in the original system, servoamplifier combines together, it directly accepts 4～20mA current controling signal or the switching value control signal that host computer is sent here, potentiometer on the electric operator is as the valve position signal sensor, valve position signal and control signal are made comparisons in inside modules, when the signal difference after the comparison during greater than the Sensitirity va1ue of module, the motor that module is directly controlled electric operator is towards the direction action that reduces signal difference, till the difference of signal is during less than the Sensitirity va1ue of module.
The utility model adopts following technical scheme:
The utility model is made up of analog quantity control signal input circuit, switching value control signal input circuit, valve position signal Acquisition Circuit, valve position signal output circuit, status indicator lamp and driving circuit, function setting pushbutton switch, circuit for controlling motor, communication interface and microprocessor; The output of analog quantity control signal input circuit connects microprocessor and imports accordingly, the output of valve position signal Acquisition Circuit connects the corresponding input of microprocessor, the input of valve position signal output circuit connects the corresponding output of microprocessor, the output of switching value control signal input circuit connects the microprocessor control signal and imports accordingly, the input of status indicator lamp and driving circuit thereof connects microprocessor and exports accordingly, the output of function setting pushbutton switch connects the button input port of microprocessor, the circuit for controlling motor input connects the J port of microprocessor, and communication interface connects the universal serial port of microprocessor.
Analog quantity control signal input circuit described in the utility model is made up of terminal CT1-1, terminal CT1-2, capacitor C 1-C3, resistance R 1-R3 and stabilivolt DW1; Terminal CT1-1 and terminal CT1-2 are the input port of analog quantity control signal, terminal CT1-1 is successively through being connected on 42 pin of microprocessor U1 after resistance R 2 and the resistance R 3, terminal CT1-2 ground connection, capacitor C 2 one is terminated on the node of resistance R 2 and resistance R 3, C2 other end ground connection, capacitor C 1 and electric capacity R1 are connected in parallel, capacitor C 1 anodal connecting terminal CT1-1, the minus earth of capacitor C 1, stabilivolt DW1 and capacitor C 3 are connected in parallel, stabilivolt DW1 negative electrode connects 42 pin of microprocessor U1, the plus earth of stabilivolt DW1, and described microprocessor U1 adopts JC757D.
Valve position signal Acquisition Circuit described in the utility model is made up of valve position sensor W1, capacitor C 4-C6, resistance R 4-R6, terminal CT1-3, terminal CT1-4 and terminal CT1-5; Described valve position sensor W1 adopts multi-turn formula potentiometer, 1 pin of valve position sensor W1 is connected to ground behind terminal CT1-3,2 pin of valve position sensor W1 pass through terminal CT1-4 successively, resistance R 5, be connected to after the resistance R 6 on 43 pin of microprocessor U1, on 44 pin of 3 pin of valve position sensor W1 through meeting microprocessor U1 behind the terminal CT1-5,12 pin and 44 pin of microprocessor all connect+5V voltage, resistance R 4 is connected between terminal CT1-3 and the terminal CT1-4, capacitor C 4, capacitor C 5, capacitor C 6 is filter capacitor, capacitor C 4 one is terminated on the node of resistance R 5 and resistance R 6, capacitor C 4 other end ground connection, capacitor C 5 is connected between 43 pin and ground of microprocessor U1, and capacitor C 6 is connected between 44 pin and ground of microprocessor U1.
Valve position signal output circuit described in the utility model is made up of optocoupler U2, the accurate source of stable pressure U3 of three end groups, phase inverter U4, integrated operatinoal amplifier U5, triode T1-T2, stabilivolt DW2, capacitor C 7-C8, resistance R 7-R13, terminal CT1-10 and terminal CT1-11; Terminal CT1-10 and terminal CT1-11 are the output terminal of valve position signal output circuit, 1 pin of U2 connects+5V voltage, 13 pin of microprocessor U1 connect 2 pin of optocoupler U2 after resistance R 7,3 pin of optocoupler U2 connect 2 pin of phase inverter U4,4 pin of U4 are successively through connecing 3 pin of integrated operatinoal amplifier U5 after resistance R 10 and the resistance R 11, triode T1 and triode T2 form complex pipe, 6 pin of integrated operatinoal amplifier U5 connect the base stage of triode T2 after resistance R 13, the collector of T1 connects the collector of T2, and node connecting terminal CT1-10, terminal CT1-11 ground connection, stabilivolt DW2 be connected to optocoupler U2 3 pin and+24V voltage between, 3 pin of U2 pass through resistance R 8 and resistance R 9 back ground connection successively, 2 pin of the accurate source of stable pressure U3 of three end groups and 3 pin connect 5 pin and 3 pin of phase inverter U4 respectively, and 3 pin of the accurate source of stable pressure U3 of three end groups are connected on the node of resistance R 8 and resistance R 9,1 pin of the accurate source of stable pressure U3 of three end groups and 2 pin short circuits, 5 pin of phase inverter U4 are connected to the anode of stabilivolt DW2, resistance R 12 is connected between 2 pin of the anode of stabilivolt DW2 and integrated operatinoal amplifier U5, the 4 pin ground connection of integrated operatinoal amplifier U5,7 pin of integrated operatinoal amplifier U5 connect+24V voltage, the base stage of triode T1 connects the emitter of triode T2, the emitter of triode T1 is connected on the anode of stabilivolt DW2 through after the resistance R 12, capacitor C 7 and capacitor C 8 are filter capacitor, the anode of capacitor C 7 one termination stabilivolt DW2, the other end of capacitor C 7 is connected on the node of resistance R 10 and resistance R 11, and capacitor C 8 is connected between 3 pin of the anode of DW2 and integrated operatinoal amplifier U5.
Switching value control signal input circuit described in the utility model is made up of diode D1-D3, resistance R 14-R21, terminal CT1-6, terminal CT1-7, terminal CT1-8 and terminal CT1-9; Diode D1; diode D2 and diode D3 are the protection diode; on the node of terminal CT1-6 through being connected to resistance R 17 and resistance R 21 behind the D1; terminal CT1-9 connects+9V; terminal CT1-7 is out the input end of instruction control signal; on 52 pin through being connected to microprocessor U1 behind the diode D2; terminal CT1-8 is for closing the input end of instruction control signal; on 4 pin through being connected to microprocessor U1 behind the diode D3; 45 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 18 and the resistance R 14; 46 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 19 and the resistance R 15; through connecing+5V voltage after resistance R 20 and the resistance R 16,48 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 21 and the resistance R 17 successively for 47 pin of microprocessor U1.
Status indicator lamp described in the utility model and driving circuit thereof are made up of LED chip for driving U6, LED 1-LED4, triode T3-T4 and resistance R 22-R30; LED output pin 35 pin of microprocessor U1,34 pin, 32 pin, 30 pin, 29 pin, 28 pin are connected to 1 pin of LED chip for driving U6 respectively, 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, LED 1, LED 2 and LED 3 are common anode dichromatic LED, the anode of LED 1, the anode of the anode of LED 2 and LED 3 joins, and the collector of node and triode T3 joins, the base stage of T3 connects 7 pin of microprocessor U1 through resistance R 28, the emitter of T3 connects+5V voltage, two negative electrodes of LED1 are respectively through being connected to 16 pin and 15 pin of LED chip for driving U6 after resistance R 22 and the resistance R 23, two negative electrodes of LED2 are respectively through being connected to 14 pin and 13 pin of LED chip for driving U6 after resistance R 24 and the resistance R 25, two negative electrodes of LED3 are respectively through being connected to 12 pin and 11 pin of LED chip for driving U6 after resistance R 26 and the resistance R 27,20 pin of microprocessor U1 are connected to triode T4 base stage after resistance R 29, the collector of triode T4 is successively through being connected to+5V voltage behind resistance R 30 and the LED 4, the grounded emitter of triode T4, described LED chip for driving U6 adopts ULN2003.
Function setting pushbutton switch circuit described in the utility model is made up of button switch K 1-K4, diode D4-D7 and resistance R 31; 6 pin of microprocessor U1 are successively through being connected to after diode D10 and the button switch K 1 on 25 pin of microprocessor U1; 2 pin of microprocessor U1 are successively through being connected to after diode D11 and the button switch K 2 on 25 pin of microprocessor U1; 51 pin of microprocessor U1 are successively through being connected to after diode D12 and the button switch K 3 on 25 pin of microprocessor U1; 3 pin of microprocessor U1 are successively through being connected to after diode D13 and the button switch K 4 on 25 pin of microprocessor U1; diode D10-D13 is the protection diode; resistance R 31 is a pull-up resistor, and be connected to+25 pin of 5V voltage and microprocessor U1 between.
Circuit for controlling motor described in the utility model is made up of controllable silicon BT1-BT2, optocoupler U7-U8, triode T5-T6, resistance R 32-R39, terminal CT2-1, terminal CT2-2, terminal CT2-3, terminal CT2-4, terminal CT2-5 and terminal CT2-6; Built-in 2 road great power bidirectional controllable silicon BT1 and the BT2 of circuit for controlling motor, 19 pin of microprocessor U1 pass through resistance R 32 successively, triode T5, resistance R 34, optocoupler U7, be connected to behind the controllable silicon BT1 on the terminal CT2-1, resistance R 32 is connected between the base stage of 19 pin of microprocessor U1 and triode T5, resistance R 34 is connected between 2 pin of the collector of triode T5 and optocoupler U7,3 pin of optocoupler U7 are connected on the terminal CT2-1 through after the resistance R 36,4 pin of optocoupler U7 are connected on the terminal CT2-2 through after the resistance R 37, and 4 pin of optocoupler U7 connect 3 pin of controllable silicon BT1,1 pin of controllable silicon BT1 and 2 pin are connected to respectively on terminal CT2-2 and the terminal CT2-1,18 pin of microprocessor U1 pass through resistance R 33 successively, triode T6, resistance R 35, optocoupler U8, be connected to behind the controllable silicon BT2 on the terminal CT2-3, resistance R 33 is connected between the base stage of 18 pin of microprocessor U1 and triode T6, resistance R 35 is connected between 2 pin of the collector of triode T6 and optocoupler U8,4 pin of optocoupler U8 are connected on the terminal CT2-3 through after the resistance R 39,3 pin of optocoupler U8 are connected on the terminal CT2-2 through after the resistance R 38,4 pin of optocoupler U8 connect 3 pin of controllable silicon BT2, and 1 pin of controllable silicon BT2 and 2 pin are connected to respectively on terminal CT2-3 and the terminal CT2-2.
The utility model is provided with communication interface, and terminal COM-VCC connects+5V voltage, and terminal COM-TXD is connected on 23 pin of microprocessor U1 through after the resistance R 40, and terminal COM-RXD connects on 24 pin of microprocessor U1 terminal COM-GND ground connection through behind the R41.
The beneficial effects of the utility model are as follows:
The utility model is a core with instrument special microprocessor chip, adopts digital technology.Valve position signal carries out high-precision a/d converter at microprocessor internal respectively and converts digital signal on 4～20mA current controling signal that the host computer that is about to receive is sent here or switching value control signal and the electric operator, compare according to pre-set relation then, judge valve opening whether with the deviation of control signal, microprocessor is controlled the motor of electric operator towards the direction action that reduces signal difference according to the signal difference after relatively by controllable silicon.The utility model can be introduced digital Anti-Jamming Technique simultaneously, realize anti-interference function by software, not only can the good restraining effect be arranged, and the abnormal signal that common mode interference in the signal circuit causes is changed, also can play good inhibition effect pulse sudden change, that energy is bigger.The utlity model has motor rotation blockage protection, protection when losing signal, function such as spacing midway and electric braking all realizes with the form of software arbitrarily.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Fig. 2 is a schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, utility model is made up of analog quantity control signal input circuit, switching value control signal input circuit, valve position signal Acquisition Circuit, valve position signal output circuit, status indicator lamp and driving circuit, function setting pushbutton switch, circuit for controlling motor, communication interface and microprocessor; The output of analog quantity control signal input circuit connects microprocessor and imports accordingly, the output of valve position signal Acquisition Circuit connects the corresponding input of microprocessor, the input of valve position signal output circuit connects the corresponding output of microprocessor, the output of switching value control signal input circuit connects the microprocessor control signal and imports accordingly, the input of status indicator lamp and driving circuit thereof connects microprocessor and exports accordingly, the output of function setting pushbutton switch connects the button input port of microprocessor, the circuit for controlling motor input connects the J port of microprocessor, and communication interface connects the universal serial port of microprocessor.
As shown in Figure 2, analog quantity control signal input circuit is made up of terminal CT1-1, terminal CT1-2, capacitor C 1-C3, resistance R 1-R3 and stabilivolt DW1; Terminal CT1-1 and terminal CT1-2 are the input port of analog quantity control signal, terminal CT1-1 is successively through being connected on 42 pin of microprocessor U1 after resistance R 2 and the resistance R 3, terminal CT1-2 ground connection, capacitor C 2 one is terminated on the node of resistance R 2 and resistance R 3, C2 other end ground connection, capacitor C 1 and electric capacity R1 are connected in parallel, capacitor C 1 anodal connecting terminal CT1-1, the minus earth of capacitor C 1, stabilivolt DW1 and capacitor C 3 are connected in parallel, stabilivolt DW1 negative electrode connects 42 pin of microprocessor U1, the plus earth of stabilivolt DW1, and described microprocessor U1 adopts JC757D.
The valve position signal Acquisition Circuit is made up of valve position sensor W1, capacitor C 4-C6, resistance R 4-R6, terminal CT1-3, terminal CT1-4 and terminal CT1-5; Valve position sensor W1 adopts multi-turn formula potentiometer, 1 pin of described valve position sensor W1 is connected to ground behind terminal CT1-3,2 pin of valve position sensor W1 pass through terminal CT1-4 successively, resistance R 5, be connected to after the resistance R 6 on 43 pin of microprocessor U1, on 44 pin of 3 pin of valve position sensor W1 through meeting microprocessor U1 behind the terminal CT1-5,12 pin and 44 pin of microprocessor all connect+5V voltage, resistance R 4 is connected between terminal CT1-3 and the terminal CT1-4, capacitor C 4, capacitor C 5, capacitor C 6 is filter capacitor, capacitor C 4 one is terminated on the node of resistance R 5 and resistance R 6, capacitor C 4 other end ground connection, capacitor C 5 is connected between 43 pin and ground of microprocessor U1, and capacitor C 6 is connected between 44 pin and ground of microprocessor U1.
The valve position signal output circuit is made up of optocoupler U2, the accurate source of stable pressure U3 of three end groups, phase inverter U4, integrated operatinoal amplifier U5, triode T1-T2, stabilivolt DW2, capacitor C 7-C8, resistance R 7-R13, terminal CT1-10 and terminal CT1-11; Terminal CT1-10 and terminal CT1-11 are the output terminal of valve position signal output circuit, 1 pin of U2 connects+5V voltage, 13 pin of microprocessor U1 connect 2 pin of optocoupler U2 after resistance R 7,3 pin of optocoupler U2 connect 2 pin of phase inverter U4,4 pin of U4 are successively through connecing 3 pin of integrated operatinoal amplifier U5 after resistance R 10 and the resistance R 11, triode T1 and triode T2 form complex pipe, 6 pin of integrated operatinoal amplifier U5 connect the base stage of triode T2 after resistance R 13, the collector of T1 connects the collector of T2, and node connecting terminal CT1-10, terminal CT1-11 ground connection, stabilivolt DW2 be connected to optocoupler U2 3 pin and+24V voltage between, 3 pin of U2 pass through resistance R 8 and resistance R 9 back ground connection successively, 2 pin of the accurate source of stable pressure U3 of three end groups and 3 pin connect 5 pin and 3 pin of phase inverter U4 respectively, and 3 pin of the accurate source of stable pressure U3 of three end groups are connected on the node of resistance R 8 and resistance R 9,1 pin of the accurate source of stable pressure U3 of three end groups and 2 pin short circuits, 5 pin of phase inverter U4 are connected to the anode of stabilivolt DW2, resistance R 12 is connected between 2 pin of the anode of stabilivolt DW2 and integrated operatinoal amplifier U5, the 4 pin ground connection of integrated operatinoal amplifier U5,7 pin of integrated operatinoal amplifier U5 connect+24V voltage, the base stage of triode T1 connects the emitter of triode T2, the emitter of triode T1 is connected on the anode of stabilivolt DW2 through after the resistance R 12, capacitor C 7 and capacitor C 8 are filter capacitor, the anode of capacitor C 7 one termination stabilivolt DW2, the other end of capacitor C 7 is connected on the node of resistance R 10 and resistance R 11, and capacitor C 8 is connected between 3 pin of the anode of DW2 and integrated operatinoal amplifier U5.
Switching value control signal input circuit is made up of diode D1-D3, resistance R 14-R21, terminal CT1-6, terminal CT1-7, terminal CT1-8 and terminal CT1-9; Diode D1; diode D2 and diode D3 are the protection diode; on the node of terminal CT1-6 through being connected to resistance R 17 and resistance R 21 behind the D1; terminal CT1-9 connects+9V; terminal CT1-7 is out the input end of instruction control signal; on 52 pin through being connected to microprocessor U1 behind the diode D2; terminal CT1-8 is for closing the input end of instruction control signal; on 4 pin through being connected to microprocessor U1 behind the diode D3; 45 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 18 and the resistance R 14; 46 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 19 and the resistance R 15; 47 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 20 and the resistance R 16; 48 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 21 and the resistance R 17; behind terminal CT1-6 and the CT1-9 short circuit, the utility model is configured to the switching value control mode.
Status indicator lamp and driving circuit thereof are made up of LED chip for driving U6, LED 1-LED4, triode T3-T4 and resistance R 22-R30; LED output pin 35 pin of microprocessor U1,34 pin, 32 pin, 30 pin, 29 pin, 28 pin are connected to 1 pin of LED chip for driving U6 respectively, 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, LED 1, LED 2 and LED 3 are common anode dichromatic LED, the anode of LED 1, the anode of the anode of LED 2 and LED 3 joins, and the collector of node and triode T3 joins, the base stage of T3 connects 7 pin of microprocessor U1 through resistance R 28, the emitter of T3 connects+5V voltage, two negative electrodes of LED1 are respectively through being connected to 16 pin and 15 pin of LED chip for driving U6 after resistance R 22 and the resistance R 23, two negative electrodes of LED2 are respectively through being connected to 14 pin and 13 pin of LED chip for driving U6 after resistance R 24 and the resistance R 25, two negative electrodes of LED3 are respectively through being connected to 12 pin and 11 pin of LED chip for driving U6 after resistance R 26 and the resistance R 27,20 pin of microprocessor U1 are connected to triode T4 base stage after resistance R 29, the collector of triode T4 is successively through being connected to+5V voltage behind resistance R 30 and the LED 4, the grounded emitter of triode T4, described LED chip for driving U6 adopts ULN2003.
The pushbutton switch circuit is made up of button switch K 1-K4, diode D4-D7 and resistance R 31; 6 pin of microprocessor U1 are successively through being connected to after diode D10 and the button switch K 1 on 25 pin of microprocessor U1; 2 pin of microprocessor U1 are successively through being connected to after diode D11 and the button switch K 2 on 25 pin of microprocessor U1; 51 pin of microprocessor U1 are successively through being connected to after diode D12 and the button switch K 3 on 25 pin of microprocessor U1; 3 pin of microprocessor U1 are successively through being connected to after diode D13 and the button switch K 4 on 25 pin of microprocessor U1; diode D10-D13 is the protection diode; resistance R 31 is a pull-up resistor, and be connected to+25 pin of 5V voltage and microprocessor U1 between.K1 is for setting pushbutton switch, and K2 is up pushbutton switch, and K3 is the descending button switch, and K4 is manual switching push button switch, utilizes the electromotive force of the switching change pin of pushbutton switch, reaches the purpose of relevant parameter in the calling program menu.
Circuit for controlling motor is made up of controllable silicon BT1-BT2, optocoupler U7-U8, triode T5-T6, resistance R 32-R39, terminal CT2-1, terminal CT2-2, terminal CT2-3, terminal CT2-4, terminal CT2-5 and terminal CT2-6; Built-in 2 road great power bidirectional controllable silicon BT1 and the BT2 of circuit for controlling motor, 19 pin of microprocessor U1 pass through resistance R 32 successively, triode T5, resistance R 34, optocoupler U7, be connected to behind the controllable silicon BT1 on the terminal CT2-1, resistance R 32 is connected between the base stage of 19 pin of microprocessor U1 and triode T5, resistance R 34 is connected between 2 pin of the collector of triode T5 and optocoupler U7,3 pin of optocoupler U7 are connected on the terminal CT2-1 through after the resistance R 36,4 pin of optocoupler U7 are connected on the terminal CT2-2 through after the resistance R 37, and 4 pin of optocoupler U7 connect 3 pin of controllable silicon BT1,1 pin of controllable silicon BT1 and 2 pin are connected to respectively on terminal CT2-2 and the terminal CT2-1,18 pin of microprocessor U1 pass through resistance R 33 successively, triode T6, resistance R 35, optocoupler U8, be connected to behind the controllable silicon BT2 on the terminal CT2-3, resistance R 33 is connected between the base stage of 18 pin of microprocessor U1 and triode T6, resistance R 35 is connected between 2 pin of the collector of triode T6 and optocoupler U8,4 pin of optocoupler U8 are connected on the terminal CT2-3 through after the resistance R 39,3 pin of optocoupler U8 are connected on the terminal CT2-2 through after the resistance R 38,4 pin of optocoupler U8 connect 3 pin of controllable silicon BT2,1 pin of controllable silicon BT2 and 2 pin are connected to respectively on terminal CT2-3 and the terminal CT2-2, terminal CT2-4, terminal CT2-5 and terminal CT2-6 are connected to respectively+9V voltage, 1 pin of optocoupler U7 and 1 pin of optocoupler U8.Terminal CT2-5, terminal CT2-6, terminal CT2-7 connect respectively limit switch common port, open positive stop end and close positive stop end.Terminal CT2-1, terminal CT2-3, terminal CT2-2 connect just commentaries on classics, counter-rotating and the common port of electric operator motor respectively.
Communication interface of the present utility model is a universal serial port, and terminal COM-VCC connects+5V voltage, and terminal COM-TXD is connected on 23 pin of microprocessor U1 through after the resistance R 40, and terminal COM-RXD connects on 24 pin of microprocessor U1 terminal COM-GND ground connection through behind the R41; The staff can carry out parameter setting and functional mode selection by computing machine or JC1001 programmable device to position sender unit module according to user's request.
The utility model is a core with instrument special microprocessor chip, adopts digital technology.Valve position signal carries out high-precision a/d converter at chip internal respectively and converts digital signal on 4～20mA current controling signal that the host computer that is about to receive is sent here or switching value control signal and the electric operator, compare according to pre-set relation then, control the motor of electric operator by controllable silicon towards the direction action that reduces signal difference according to the signal difference relatively.Because control signal and valve position signal relatively is that direct digital quantity compares, and is not subject to the influence of environment, good operating stability, accurate positioning.When reasons such as mechanical driving devices such as Electric Machine Control circuit broken string or valve are stuck occurring and make motor rotation blockage, will produce bigger error between actual valve position signal and the control signal, in case error amount is during greater than the valve position deviation allowable value, chip picks up counting and at 6.4S scope internal cutting off motor power, forbid that motor again to this direction action, prevents that motor from burning because of overload.Chip internal has defined the current reference signal of a 3mA, when chip reads to such an extent that control signal then starts the break signal alert program immediately less than this benchmark, cuts off motor power, and electric operator keeps current location.And the interference of outer bound pair system can be eliminated by the mode of software, thereby has guaranteed control accuracy.Mode with software realizes limit function midway, and arbitrarily capping position and lower position in the total travel scope of electric operator not only are active in one's movements, the precision height, and reproducibility error is minimum.But the utility model is outer without any adjustment component, and functions such as the field adjustable of module, sensitivity setting, hand automatic switchover all are provided with by four buttons above the module, makes on-the-spot Installation and Debugging not only fast but also easy.But also be provided with the led state pilot lamp, the running status of visual indication electric operator.The utility model have one can 0～10mA defined by the user or the valve position feedback analog quantity output of 4～20mA, and the converted output signal and the microprocessor of this valve position feedback are isolated, built-in 2 road great power bidirectional controllable silicons of the utility model also adopt photoelectricity to isolate the zero cross fired special circuit, and are more more reliable than traditional control method.
The utility model has two kinds of control modes, and a kind of is the analog quantity control mode, and a kind of is the switching value control mode.The analog quantity control mode is accepted simulating signal, and the switching value control mode is accepted the switching value signal.The analog quantity control signal is standard dc current signal (4～20mA DC), after this signal is sent by host computer, flows to microprocessor through analog quantity control signal input circuit.After the switching value control signal is sent by host computer, flow to microprocessor through switching value control signal input circuit.These two kinds of control modes can be selected for use voluntarily by the user, and promptly behind terminal CT1-6 and CT1-9 short circuit, the utility model is configured to the switching value control mode.
The valve position signal that the utility model valve position signal Acquisition Circuit is accepted is that its resistance of resistance-type valve position sensor signal can be selected arbitrarily in 0～5K Ω scope.The analog signals that the valve position signal Acquisition Circuit collects is input to microprocessor.Microprocessor to this signal carry out A D conversion, the digital quantity signal one tunnel after the conversion is called when carrying out various functions controls, data operation by microprocessor as the computing parameter; Another route valve position signal through photoelectricity isolate, anti-phase, signal exports to host computer as the valve position feedback signal after amplifying, and makes the control personnel in time understand the valve opening situation of on-the-spot pipeline.This output signal can be 0～10mA or 4～20mA standard dc current signal through software set.
The utility model is provided with the led state pilot lamp, the running status of visual indication electric operator.
LED1: green light is bright to be manual state; Red, green light and bright be set condition.
LED2: red colored lamp is bright to be disconnected status input signal.
LED3: green light is bright to be the counter-rotating running status; Red colored lamp is bright to be the lower limit alarm condition.
LED4: green light is bright for just transporting capable state; Red colored lamp is bright to be the upper limit alarm state.
Utilize pushbutton switch to demarcate electric operator zero point and full scale step:
Under auto state, pin earlier and set button switch K 1,, then and unclamp, then enter the demarcation state of zero point and full scale, and the LED1 pilot lamp above the module is red and green and bright again by descending button switch K 3; By descending button switch K 3 or up button switch K 2, select the mechanical zero of electric operator, confirm by setting button switch K 1 then; By the mechanical full scale of up button switch K 2 selection electric operators, confirm by setting button switch K 1 then; Pin descending button K switch 3 at last earlier, again by setting button switch K 1, then and unclamp and withdraw from the state of promptly demarcating, and the red green indicating lamp of the LED1 above the module and going out.
But the utility model is outer without any adjustment component, and functions such as the field adjustable of module, sensitivity setting, hand automatic switchover all are provided with by four pushbutton switches above the module, makes on-the-spot Installation and Debugging not only fast but also easy.
Described microprocessor U1 adopts JC757D, and described LED chip for driving U6 adopts ULN2003.
Claims (9)
1, a kind of intelligent position steady arm module is characterized in that it is made up of analog quantity control signal input circuit, switching value control signal input circuit, valve position signal Acquisition Circuit, valve position signal output circuit, status indicator lamp and driving circuit, function setting pushbutton switch, circuit for controlling motor, communication interface and microprocessor; The output of analog quantity control signal input circuit connects microprocessor and imports accordingly, the output of valve position signal Acquisition Circuit connects the corresponding input of microprocessor, the input of valve position signal output circuit connects the corresponding output of microprocessor, the output of switching value control signal input circuit connects the microprocessor control signal and imports accordingly, the input of status indicator lamp and driving circuit thereof connects microprocessor and exports accordingly, the output of function setting pushbutton switch connects the button input port of microprocessor, the circuit for controlling motor input connects the J port of microprocessor, and communication interface connects the universal serial port of microprocessor.
2, a kind of intelligent position steady arm module according to claim 1 is characterized in that described analog quantity control signal input circuit is made up of terminal CT1-1, terminal CT1-2, capacitor C 1-C3, resistance R 1-R3 and stabilivolt DW1; Terminal CT1-1 and terminal CT1-2 are the input port of analog quantity control signal, terminal CT1-1 is successively through being connected on 42 pin of microprocessor U1 after resistance R 2 and the resistance R 3, terminal CT1-2 ground connection, capacitor C 2 one is terminated on the node of resistance R 2 and resistance R 3, C2 other end ground connection, capacitor C 1 and electric capacity R1 are connected in parallel, capacitor C 1 anodal connecting terminal CT1-1, the minus earth of capacitor C 1, stabilivolt DW1 and capacitor C 3 are connected in parallel, stabilivolt DW1 negative electrode connects 42 pin of microprocessor U1, the plus earth of stabilivolt DW1, and described microprocessor U1 adopts JC757D.
3, a kind of intelligent position steady arm module according to claim 1 is characterized in that described valve position signal Acquisition Circuit is made up of valve position sensor W1, capacitor C 4-C6, resistance R 4-R6, terminal CT1-3, terminal CT1-4 and terminal CT1-5; Described valve position sensor W1 adopts multi-turn formula potentiometer, 1 pin of valve position sensor W1 is connected to ground behind terminal CT1-3,2 pin of valve position sensor W1 pass through terminal CT1-4 successively, resistance R 5, be connected to after the resistance R 6 on 43 pin of microprocessor U1, on 44 pin of 3 pin of valve position sensor W1 through meeting microprocessor U1 behind the terminal CT1-5,12 pin and 44 pin of microprocessor all connect+5V voltage, resistance R 4 is connected between terminal CT1-3 and the terminal CT1-4, capacitor C 4, capacitor C 5, capacitor C 6 is filter capacitor, capacitor C 4 one is terminated on the node of resistance R 5 and resistance R 6, capacitor C 4 other end ground connection, capacitor C 5 is connected between 43 pin and ground of microprocessor U1, and capacitor C 6 is connected between 44 pin and ground of microprocessor U1.
4, a kind of intelligent position steady arm module according to claim 1 is characterized in that described valve position signal output circuit is made up of optocoupler U2, the accurate source of stable pressure U3 of three end groups, phase inverter U4, integrated operatinoal amplifier U5, triode T1-T2, stabilivolt DW2, capacitor C 7-C8, resistance R 7-R13, terminal CT1-10 and terminal CT1-11; Terminal CT1-10 and terminal CT1-11 are the output terminal of valve position signal output circuit, 1 pin of U2 connects+5V voltage, 13 pin of microprocessor U1 connect 2 pin of optocoupler U2 after resistance R 7,3 pin of optocoupler U2 connect 2 pin of phase inverter U4,4 pin of U4 are successively through connecing 3 pin of integrated operatinoal amplifier U5 after resistance R 10 and the resistance R 11, triode T1 and triode T2 form complex pipe, 6 pin of integrated operatinoal amplifier U5 connect the base stage of triode T2 after resistance R 13, the collector of T1 connects the collector of T2, and node connecting terminal CT1-10, terminal CT1-11 ground connection, stabilivolt DW2 be connected to optocoupler U2 3 pin and+24V voltage between, 3 pin of U2 pass through resistance R 8 and resistance R 9 back ground connection successively, 2 pin of the accurate source of stable pressure U3 of three end groups and 3 pin connect 5 pin and 3 pin of phase inverter U4 respectively, and 3 pin of the accurate source of stable pressure U3 of three end groups are connected on the node of resistance R 8 and resistance R 9,1 pin of the accurate source of stable pressure U3 of three end groups and 2 pin short circuits, 5 pin of phase inverter U4 are connected to the anode of stabilivolt DW2, resistance R 12 is connected between 2 pin of the anode of stabilivolt DW2 and integrated operatinoal amplifier U5, the 4 pin ground connection of integrated operatinoal amplifier U5,7 pin of integrated operatinoal amplifier U5 connect+24V voltage, the base stage of triode T1 connects the emitter of triode T2, the emitter of triode T1 is connected on the anode of stabilivolt DW2 through after the resistance R 12, capacitor C 7 and capacitor C 8 are filter capacitor, the anode of capacitor C 7 one termination stabilivolt DW2, the other end of capacitor C 7 is connected on the node of resistance R 10 and resistance R 11, and capacitor C 8 is connected between 3 pin of the anode of DW2 and integrated operatinoal amplifier U5.
5, a kind of intelligent position steady arm module according to claim 1 is characterized in that described switching value control signal input circuit is made up of diode D1-D3, resistance R 14-R21, terminal CT1-6, terminal CT1-7, terminal CT1-8 and terminal CT1-9; Diode D1; diode D2 and diode D3 are the protection diode; on the node of terminal CT1-6 through being connected to resistance R 17 and resistance R 21 behind the D1; terminal CT1-9 connects+9V; terminal CT1-7 is out the input end of instruction control signal; on 52 pin through being connected to microprocessor U1 behind the diode D2; terminal CT1-8 is for closing the input end of instruction control signal; on 4 pin through being connected to microprocessor U1 behind the diode D3; 45 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 18 and the resistance R 14; 46 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 19 and the resistance R 15; through connecing+5V voltage after resistance R 20 and the resistance R 16,48 pin of microprocessor U1 are successively through connecing+5V voltage after resistance R 21 and the resistance R 17 successively for 47 pin of microprocessor U1.
6, a kind of intelligent position steady arm module according to claim 1 is characterized in that described status indicator lamp and driving circuit thereof be made up of LED chip for driving U6, LED 1-LED4, triode T3-T4 and resistance R 22-R30; LED output pin 35 pin of microprocessor U1,34 pin, 32 pin, 30 pin, 29 pin, 28 pin are connected to 1 pin of LED chip for driving U6 respectively, 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, LED 1, LED 2 and LED 3 are common anode dichromatic LED, the anode of LED 1, the anode of the anode of LED 2 and LED 3 joins, and the collector of node and triode T3 joins, the base stage of T3 connects 7 pin of microprocessor U1 through resistance R 28, the emitter of T3 connects+5V voltage, two negative electrodes of LED1 are respectively through being connected to 16 pin and 15 pin of LED chip for driving U6 after resistance R 22 and the resistance R 23, two negative electrodes of LED2 are respectively through being connected to 14 pin and 13 pin of LED chip for driving U6 after resistance R 24 and the resistance R 25, two negative electrodes of LED3 are respectively through being connected to 12 pin and 11 pin of LED chip for driving U6 after resistance R 26 and the resistance R 27,20 pin of microprocessor U1 are connected to triode T4 base stage after resistance R 29, the collector of triode T4 is successively through being connected to+5V voltage behind resistance R 30 and the LED 4, the grounded emitter of triode T4, described LED chip for driving U6 adopts ULN2003.
7, a kind of intelligent position steady arm module according to claim 1 is characterized in that described function setting pushbutton switch circuit is made up of button switch K 1-K4, diode D4-D7 and resistance R 31; 6 pin of microprocessor U1 are successively through being connected to after diode D10 and the button switch K 1 on 25 pin of microprocessor U1; 2 pin of microprocessor U1 are successively through being connected to after diode D11 and the button switch K 2 on 25 pin of microprocessor U1; 51 pin of microprocessor U1 are successively through being connected to after diode D12 and the button switch K 3 on 25 pin of microprocessor U1; 3 pin of microprocessor U1 are successively through being connected to after diode D13 and the button switch K 4 on 25 pin of microprocessor U1; diode D10-D13 is the protection diode; resistance R 31 is a pull-up resistor, and be connected to+25 pin of 5V voltage and microprocessor U1 between.
8, a kind of intelligent position steady arm module according to claim 1 is characterized in that described circuit for controlling motor is made up of controllable silicon BT1-BT2, optocoupler U7-U8, triode T5-T6, resistance R 32-R39, terminal CT2-1, terminal CT2-2, terminal CT2-3, terminal CT2-4, terminal CT2-5 and terminal CT2-6; Built-in 2 road great power bidirectional controllable silicon BT1 and the BT2 of circuit for controlling motor, 19 pin of microprocessor U1 pass through resistance R 32 successively, triode T5, resistance R 34, optocoupler U7, be connected to behind the controllable silicon BT1 on the terminal CT2-1, resistance R 32 is connected between the base stage of 19 pin of microprocessor U1 and triode T5, resistance R 34 is connected between 2 pin of the collector of triode T5 and optocoupler U7,3 pin of optocoupler U7 are connected on the terminal CT2-1 through after the resistance R 36,4 pin of optocoupler U7 are connected on the terminal CT2-2 through after the resistance R 37, and 4 pin of optocoupler U7 connect 3 pin of controllable silicon BT1,1 pin of controllable silicon BT1 and 2 pin are connected to respectively on terminal CT2-2 and the terminal CT2-1,18 pin of microprocessor U1 pass through resistance R 33 successively, triode T6, resistance R 35, optocoupler U8, be connected to behind the controllable silicon BT2 on the terminal CT2-3, resistance R 33 is connected between the base stage of 18 pin of microprocessor U1 and triode T6, resistance R 35 is connected between 2 pin of the collector of triode T6 and optocoupler U8,4 pin of optocoupler U8 are connected on the terminal CT2-3 through after the resistance R 39,3 pin of optocoupler U8 are connected on the terminal CT2-2 through after the resistance R 38,4 pin of optocoupler U8 connect 3 pin of controllable silicon BT2, and 1 pin of controllable silicon BT2 and 2 pin are connected to respectively on terminal CT2-3 and the terminal CT2-2.
9, intelligent position steady arm module according to claim 1, it is characterized in that being provided with communication interface, terminal COM-VCC connects+5V voltage, terminal COM-TXD is connected on 23 pin of microprocessor U1 through after the resistance R 40, terminal COM-RXD connects on 24 pin of microprocessor U1 terminal COM-GND ground connection through behind the R41.
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| CN2009201034476U CN201435010Y (en) | 2009-06-26 | 2009-06-26 | Intelligent position localizer module |
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| CN2009201034476U CN201435010Y (en) | 2009-06-26 | 2009-06-26 | Intelligent position localizer module |
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| CN201435010Y true CN201435010Y (en) | 2010-03-31 |
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| CN102943916A (en) * | 2012-12-04 | 2013-02-27 | 烟台荏原空调设备有限公司 | Electronic expansion valve driver |
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| CN102943916A (en) * | 2012-12-04 | 2013-02-27 | 烟台荏原空调设备有限公司 | Electronic expansion valve driver |
| CN103786703B (en) * | 2014-01-28 | 2017-04-12 | 同济大学 | Electro-hydraulic composite braking system hierarchical control structure and method of integrated braking cylinder |
| CN103786703A (en) * | 2014-01-28 | 2014-05-14 | 同济大学 | Electro-hydraulic composite braking system hierarchical control structure and method of integrated braking cylinder |
| CN104155898A (en) * | 2014-08-05 | 2014-11-19 | 大唐保定热电厂 | Control system for electric actuator converting analog quantity into switching value |
| CN105387225A (en) * | 2015-12-09 | 2016-03-09 | 天津博远达科技有限公司 | Lifting mechanism for remote control electric gate of salt pond |
| CN105387225B (en) * | 2015-12-09 | 2018-04-06 | 天津博远达科技有限公司 | A kind of salt pond remote control electric gate valve elevating mechanism |
| CN106090385A (en) * | 2016-05-31 | 2016-11-09 | 靖江市鹏明金属制品有限公司 | A kind of full-automatic multi-functional combined valve controller |
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| CN106369203A (en) * | 2016-08-29 | 2017-02-01 | 苏州金洛宇智能科技有限公司 | Electric control valve control system |
| CN106598013A (en) * | 2017-02-09 | 2017-04-26 | 青岛华高软件科技有限公司 | Gang control device for interior of pipe gallery |
| CN106598013B (en) * | 2017-02-09 | 2019-02-05 | 青岛华高物联网科技有限公司 | A kind of piping lane Inner link control device |
| CN110043707A (en) * | 2019-03-28 | 2019-07-23 | 钦州市创华工控设备有限公司 | A kind of analog signal turns the valve actuator of pulse signal |
| CN113985851A (en) * | 2021-10-29 | 2022-01-28 | 雅迪科技集团有限公司 | Electric vehicle locator communication circuit with bus protection and anti-interference functions |
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