CN105607531A - Automatic control system for rolling door based on driving pre-amplification electric circuit - Google Patents

Automatic control system for rolling door based on driving pre-amplification electric circuit Download PDF

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Publication number
CN105607531A
CN105607531A CN201510963754.1A CN201510963754A CN105607531A CN 105607531 A CN105607531 A CN 105607531A CN 201510963754 A CN201510963754 A CN 201510963754A CN 105607531 A CN105607531 A CN 105607531A
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CN
China
Prior art keywords
triode
utmost point
diode
resistance
pin
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Pending
Application number
CN201510963754.1A
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Chinese (zh)
Inventor
韩群芳
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Chengdu Clay Star Technology Co Ltd
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Chengdu Clay Star Technology Co Ltd
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Application filed by Chengdu Clay Star Technology Co Ltd filed Critical Chengdu Clay Star Technology Co Ltd
Priority to CN201510963754.1A priority Critical patent/CN105607531A/en
Publication of CN105607531A publication Critical patent/CN105607531A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809Control
    • E06B2009/6818Control using sensors
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24027Circuit, independent from microprocessor, detects contact switch to allow power to actuator

Abstract

The invention discloses an automatic control system for a rolling door based on a driving pre-amplification electric circuit, the system is characterized in that: the system is formed by a CPU, an A/D converter and a control circuit which are connected with the CPU, a pre-amplification electric circuit connected with the A/D converter, a photoelectric sensor and an infrared sensor which are connected with the pre-amplification electric circuit, a drive circuit connected with the control circuit, and a lifting motor connected with the drive circuit; wherein the control circuit is formed by a control chip IC, a signal trigger circuit of which an input end is connected with the CPU, and a door opening control circuit and a door closing control circuit of which output ends are connected with the drive circuit; and the signal trigger circuit, the door opening control circuit and the door closing control circuit are connected with the control chip IC. According to the invention, the system has simple structure and low cost and can automatically open and close the door, so that the system can ensure that the rolling door isolates the product and production environment, and the system is suitable for generalizing and applying.

Description

A kind of rolling screen door automatic control system based on drive-type pre-amplification circuit
Technical field
The present invention relates to a kind of automatic control system, specifically refer to a kind of based on drive-type pre-amplification circuitRolling screen door automatic control system.
Background technology
Because production and processing needs, factory is used rolling screen door isolated product and production environment conventionally, uses at presentNormally electric rolling door of rolling screen door. Electric rolling door is all positive and negative by Control monophase machineTransfer the switch of rolling screen door, opened door by rising button, closed door by decline button, passed throughStop button stops an action. Because electric rolling door is all to move artificially gauge tap, often occurForget to close the door or owing to worrying the situation of not closed door, therefore easily make noise, dust or smog etc. harmfulPollution enters in rolling screen door, thereby brings greatly harm to product or production environment in rolling screen door.
Summary of the invention
The electric rolling door that the object of the invention is to overcome current use is all to move artificially to control outClose, often occur forgetting to close the door or there is no Guan Wanmen and easily make noise, dust or smog etc. have owing to worryingEvil is polluted the defect entering in rolling screen door, provides one not only simple in structure, and with low cost, Hai NengjiTime close the rolling screen door automatic control system based on drive-type pre-amplification circuit of rolling screen door.
The present invention is achieved through the following technical solutions:
A rolling screen door automatic control system based on drive-type pre-amplification circuit, is mainly processed by central authoritiesDevice, the A/D converter being all connected with central processing unit and control circuit, be connected with A/D converterPre-amplification circuit, the photoelectric sensor being all connected with pre-amplification circuit and infrared sensor, with controlThe drive circuit that circuit processed is connected, and the lifting motor being connected with drive circuit composition; Described controlCircuit is by control chip IC, the signal circuits for triggering that input is connected with central processing unit, and outputOpen the door control circuit and the pass gate control circuit composition that are all connected with drive circuit; Described signal circuits for triggeringControl circuit and pass gate control circuit are all connected with control chip IC with opening the door.
Further, described drive circuit is by driving chip U, triode VT5, triode VT6, three utmost pointsPipe VT7, is serially connected in the resistance R 12 between the base stage of triode VT5 and the VIN pin of driving chip U,Be serially connected in the resistance R 13 between the emitter stage of triode VT5 and the PWMD pin of driving chip U, PThe utmost point is connected with the colelctor electrode of triode VT5, the N utmost point is connected with the ROTP pin that drives chip UDiode D8, positive pole is connected with the emitter stage of triode VT5 after slide rheostat R14, negative pole connectsThe capacitor C 5 on ground, is serially connected in the resistance R 15 between the N utmost point of diode D8 and the colelctor electrode of triode VT6,Be serially connected in the resistance R 18 between the base stage of triode VT6 and the LD pin of driving chip U, the P utmost point and threeThe diode D10 that the base stage of utmost point pipe VT6 is connected, the N utmost point is connected with the emitter stage of triode VT7,The N utmost point is connected with the RI pin that drives chip U, the P utmost point after resistance R 17 with the transmitting of triode VT7The diode D11 that the utmost point is connected, the P utmost point is connected with the GATE pin that drives chip U after resistance R 16The diode D9 connect, the N utmost point being connected with the colelctor electrode of triode VT7, anodal with driving chip U'sCS pin is connected, the capacitor C 6 of negative pole ground connection after resistance R 19, and the P utmost point and capacitor C 6 is negativeThe diode D12 composition that the utmost point is connected, the N utmost point is connected with the base stage of triode VT7; Described driving coreThe GATE pin of sheet U is connected with the sliding end of slide rheostat R14, its RI pin and triodeThe emitter stage of VT6 is connected, its GND pin ground connection; The base stage of described triode VT6 and triodeThe colelctor electrode of VT7 is connected, the base stage of described triode VT5 as the input of drive circuit respectively withThe control circuit that opens the door is connected with pass gate control circuit, and the base stage of described triode VT7 is as drive circuitOutput be connected with lifting motor.
Further, described pre-amplification circuit is by amplifier P1, amplifier P2, and triode VT8,The N utmost point is connected with the negative input end of amplifier P1, the P utmost point after resistance R 20 with the output of amplifier P1The diode D13 being connected, positive pole is connected with the negative input end of amplifier P2, the electric capacity of minus earthC7, the N utmost point is connected with the P utmost point of diode D13 after resistance R 21, the sending out of the P utmost point and triode VT8The diode D15 that emitter-base bandgap grading is connected, anodal after slide rheostat R23 with the output phase of amplifier P2The capacitor C 8 that connection, negative pole are connected with the base stage of triode VT8, the output of the P utmost point and amplifier P1The diode D14 be connected, the N utmost point being connected with the output of amplifier P2, is serially connected in amplifier P2'sResistance R 22 between the positive pole of output and capacitor C 8, and one end is connected with the base stage of triode VT8Connect, the positive pole of the other end and capacitor C 8 jointly as pre-amplification circuit output and with A/D converter phaseThe resistance R 24 connecting forms; The control end phase of the base stage of described triode VT8 and slide rheostat R23Connect, the positive input terminal of described amplifier P2 is connected with the output of amplifier P1; Described amplifierThe P of the positive input terminal of P1 and diode D13 extremely jointly as the input of pre-amplification circuit and respectively withPhotoelectric sensor is connected with infrared sensor.
Further, described signal circuits for triggering are by triode VT1, triode VT2, and the P utmost point is through resistanceAfter R1, be connected with the base stage of triode VT1, the N utmost point is connected with the CONT pin of control chip ICDiode D2, one end is connected with the base stage of triode VT1, the CONT of the other end and control chip ICThe slide rheostat R2 that pin is connected, the P utmost point is connected with the emitter stage of triode VT1, the N utmost point and controlThe diode D3 that the THR pin of chip IC processed is connected, the N utmost point is connected with the colelctor electrode of triode VT1The diode D1 connect, the P utmost point being connected with the RES pin of control chip IC after resistance R 3, anodal withThe P utmost point of diode D1 is connected, the capacitor C 1 of minus earth, and the base stage of one end and triode VT1 altogetherIt is same as the input of signal circuits for triggering, the resistance R 5 that the other end is connected with the base stage of triode VT1,Be serially connected in the resistance R 4 between the base stage of triode VT1 and the colelctor electrode of triode VT2, anodal and three utmost pointsThe capacitor C 2 that base stage is connected, negative pole is connected with the base stage of triode VT1 of pipe VT2, the N utmost point is through continuingAfter electrical equipment K1, be connected with the CONT pin of control chip IC, the P utmost point is connected with the control circuit that opens the doorDiode D4, and one end is connected with the negative pole of capacitor C 2 after relay K 2, the other end and closing the doorThe resistance R 10 that control circuit is connected forms; The emitter stage of described triode VT2 and control chip IC'sCONT pin is connected, the emitter stage of described triode VT1 with the sliding end phase of slide rheostat R2Connect.
Meanwhile, described in open the door control circuit by triode VT3, the P utmost point after resistance R 7 with triode VT3Emitter stage be connected, the N utmost point is connected with lifting motor after the normally opened contact K1-1 of relay K 1 twoUtmost point pipe D5, one end is connected with the base stage of triode VT1, the other end is extremely connected with the N of diode D5The resistance R 6 connecing, and positive pole is connected with the P utmost point of diode D5, negative pole is connected with pass gate control circuitThe capacitor C 3 connecing forms; The colelctor electrode of described triode VT3 is connected with the P utmost point of diode D4, itsEmitter stage is connected with the DIS pin of control chip IC.
In order to ensure effect, described pass gate control circuit is by triode VT4, anodal after resistance R 8 with threeThe capacitor C 4 that the base stage of utmost point pipe VT3 is connected, negative pole is connected with the colelctor electrode of triode VT4, the P utmost pointWith the diode D6 that the OUT pin of control chip IC is connected, the N utmost point is connected with the positive pole of capacitor C 4,The P utmost point is connected with the emitter stage of triode VT4, the N utmost point after the normally opened contact K2-1 of relay K 2 withThe diode D7 that lifting motor is connected, is serially connected between the N utmost point of diode D7 and the positive pole of capacitor C 4Resistance R 9, and be serially connected in the resistance R 11 between the P utmost point of diode D7 and the base stage of triode VT4Composition; The emitter stage of described triode VT4 is connected with the negative pole of capacitor C 3, and its base stage is in turn through resistanceR10 is connected with the negative pole of capacitor C 2 with after relay K 2; The GND pin of described control chip ICGround connection.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the present invention is not only simple in structure, and with low cost, energy automatic door opening in the time having people to enter,And can also automatic door-closing in the time that nobody enters, can avoid artificial action control switch and often forget to close the door or due toWorry and do not closed door and made harmful pollutions such as noise, dust or smog enter the situation in rolling screen door, because ofThis can ensure rolling screen door isolated product and production environment.
(2) drive circuit of the present invention is used for driving lifting motor switch gate, by the driving of drive circuitCan make the action of lifting motor switch gate more steady.
(3) pre-amplification circuit of the present invention can enter the signal of photoelectric sensor and infrared sensor collectionRow amplifies to be processed, and is convenient to A/D converter and carries out conversion process.
(4) signal circuits for triggering of the present invention are used for receiving the control signal that central processing unit sends, and willThis control signal is sent to control chip IC and processes, and opens the door or closes the door so that control lifting motor.
(5) control circuit that opens the door of the present invention can be opening the door when control signal of receiving that central processing unit sendsConducting, and lifting controllable motor rises rolling screen door.
(6) pass of the present invention gate control circuit can be in the time of the pass gate control signal of receiving that central processing unit sendsConducting, and lifting controllable motor cuts out rolling screen door.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of control circuit of the present invention.
Fig. 3 is the electrical block diagram of drive circuit of the present invention.
Fig. 4 is the electrical block diagram of pre-amplification circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limitIn this.
Embodiment
As shown in Figure 1, automatic control system of the present invention, mainly by central processing unit, all processes with central authoritiesThe A/D converter that device is connected and control circuit, the pre-amplification circuit being connected with A/D converter,The photoelectric sensor being all connected with pre-amplification circuit and infrared sensor, what be connected with control circuit drivesMoving circuit, and the lifting motor being connected with drive circuit composition. Described infrared sensor is used for gathering volumeCurtain human body signal outdoors, in the time having people to enter rolling screen door, infrared sensor is sent out the human body signal collectingDeliver to A/D converter, A/D converter is sent to central authorities after the signal of infrared sensor collection is changedProcessor, central processing unit sends to control circuit the control signal of opening the door, and control circuit is controlled lifting electricityMachine rises rolling screen door.
Described photoelectric sensor, for gathering human body and other object informations of rolling screen door below, is worked as photoelectric sensingWhen device induction has people or other objects less than rolling screen door below, central processing unit sends pass gate to control circuitSignal processed, control circuit controls lifting motor and cuts out rolling screen door; When photoelectric sensor senses under rolling screen doorSide is sent to A/D converter conversion by the signal of collection, the information after conversion while having people or other objectsTo be sent to central processing unit, central processing unit sends to control circuit the control signal that stops closing the door, controlCircuit processed is controlled lifting motor and is stopped action. By the setting of automatic control system of the present invention, can haveAutomatic door opening when people enters, and can also automatic door-closing after people enters, can avoid artificial action control switch andOften forget to close the door or do not closed door and made harmful pollutions such as noise, dust or smog enter volume owing to worryingSituation in curtain door, therefore can ensure rolling screen door isolated product and production environment.
When enforcement, described control circuit is by control chip IC, the signal that input is connected with central processing unitCircuits for triggering, and the control circuit and close gate control circuit group of opening the door that is all connected with drive circuit of outputBecome; Described signal circuits for triggering and open the door control circuit and close gate control circuit all with control chip IC phaseConnect, as shown in Figure 2. What described control chip IC adopted is NE555 integrated chip, described centreWhat reason device adopted is SOP8 integrated chip.
Concrete, described signal circuits for triggering are by triode VT1, triode VT2, and relay K 1, continuesElectrical equipment K2, diode D1, diode D2, diode D3, diode D4, capacitor C 1, capacitor C 2,Resistance R 1, slide rheostat R2, resistance R 3, resistance R 4, resistance R 5 and resistance R 10 form. InstituteState the control signal that signal circuits for triggering send for receiving central processing unit, and this control signal is sent toControl chip IC processes, and opens the door or closes the door so that control lifting motor.
When connection, the P utmost point of described diode D2 is connected with the base stage of triode VT1 after resistance R 1,Its N utmost point is connected with the CONT pin of control chip IC. One end of described slide rheostat R2 and threeThe base stage of utmost point pipe VT1 is connected, and its other end is connected with the CONT pin of control chip IC. DescribedThe P utmost point of diode D3 is connected with the emitter stage of triode VT1, the THR of its N utmost point and control chip ICPin is connected. The N utmost point of described diode D1 is connected with the colelctor electrode of triode VT1, its P utmost pointAfter resistance R 3, be connected with the RES pin of control chip IC. The positive pole of described capacitor C 1 and diodeThe P utmost point of D1 is connected, its minus earth. The base stage of one end and triode VT1 triggers as signal jointlyThe input of circuit, its other end is connected with the base stage of triode VT1. Wherein, described resistance R 5One end is connected with the ZCD pin of SOP8 integrated chip, the base stage of described triode VT1 and SOP8The CS pin of integrated chip is connected, the MULT pin of described A/D converter and SOP8 integrated chipBe connected.
Described resistance R 4 is serially connected between the base stage of triode VT1 and the colelctor electrode of triode VT2. InstituteState that capacitor C 2 positive poles are connected with the base stage of triode VT2, negative pole is connected with the base stage of triode VT1Connect. The N utmost point of described diode D4 is connected with the CONT pin of control chip IC after relay K 1Connect, its P utmost point is connected with the control circuit that opens the door. One end of described resistance R 10 after relay K 2 with electricityThe negative pole that holds C2 is connected, and its other end is connected with pass gate control circuit. Meanwhile, described triode VT2Emitter stage be connected with the CONT pin of control chip IC, the emitter stage of described triode VT1 and cunningThe sliding end of moving rheostat R2 is connected.
The described control circuit that opens the door is by triode VT3, diode D5, capacitor C 3, resistance R 6 and resistanceR7 composition. The described control circuit that opens the door can be in conducting when control signal of opening the door of receiving that central processing unit sends,And lifting controllable motor rises rolling screen door.
When connection, the P utmost point of described diode D5 is connected with the emitter stage of triode VT3 after resistance R 7Connect, its N utmost point is connected with drive circuit after the normally opened contact K1-1 of relay K 1. Described resistance R 6One end be connected with the base stage of triode VT1, its other end is connected with the N utmost point of diode D5.The positive pole of described capacitor C 3 is connected with the P utmost point of diode D5, and its negative pole is connected with pass gate control circuitConnect. Meanwhile, the colelctor electrode of described triode VT3 is connected with the P utmost point of diode D4, its emitter stage withThe DIS pin of control chip IC is connected. When signal circuits for triggering receive opening that central processing unit sendsWhen gate control signal, relay K 1 must be electric, the normally opened contact K1-1 closure of relay K 1, the control of opening the doorCircuit rises rolling screen door by drive circuit control lifting motor.
Described pass gate control circuit is by triode VT4, diode D6, diode D7, capacitor C 4, electricityResistance R8, resistance R 9 and resistance R 11 form. Described pass gate control circuit can receive that central processing unit sendsPass gate control signal time conducting, and lifting controllable motor cuts out rolling screen door.
When connection, the positive pole of described capacitor C 4 is connected with the base stage of triode VT3 after resistance R 8,Its negative pole is connected with the colelctor electrode of triode VT4. The P utmost point of described diode D6 and control chip ICOUT pin be connected, its N utmost point is connected with the positive pole of capacitor C 4. The P of described diode D7The utmost point is connected with the emitter stage of triode VT4, its N utmost point after the normally opened contact K2-1 of relay K 2 withDrive circuit is connected. Described resistance R 9 be serially connected in the N utmost point of diode D7 and the positive pole of capacitor C 4 itBetween, described resistance R 11 is serially connected between the P utmost point of diode D7 and the base stage of triode VT4. Meanwhile,The emitter stage of described triode VT4 is connected with the negative pole of capacitor C 3, and its base stage is in turn through resistance R 10Be connected with the negative pole of capacitor C 2 with relay K 2 is rear; The GND pin ground connection of described control chip IC.In the time of the gate control signal of signal circuits for triggering receive that central processing unit sends pass relay K 2 electric, continueThe normally opened contact K2-1 closure of electrical equipment K2, closes gate control circuit by drive circuit control lifting motorClose rolling screen door.
As shown in Figure 3, described drive circuit is by driving chip U, triode VT5, triode VT6, threeUtmost point pipe VT7, diode D8, diode D9, diode D10, diode D11, diode D12,Capacitor C 5, capacitor C 6, resistance R 12, resistance R 13, slide rheostat R14, resistance R 15, resistanceR16, resistance R 17, resistance R 18 and resistance R 19 form. In the present embodiment, described driving chip U adoptsBe PT4107 integrated chip. Described drive circuit is used for driving lifting motor switch gate, by drivingThe driving of circuit can make the action of lifting motor switch gate more steady.
When connection, described resistance R 12 is serially connected in the base stage and the VIN pipe that drives chip U of triode VT5Between pin, described resistance R 13 is serially connected in the emitter stage and the PWMD that drives chip U of triode VT5Between pin. The P utmost point of described diode D8 is connected with the colelctor electrode of triode VT5, its N utmost point withDrive the ROTP pin of chip U to be connected. The positive pole of described capacitor C 5 after slide rheostat R14 withThe emitter stage of triode VT5 is connected, its minus earth. Described resistance R 15 is serially connected in diode D8The N utmost point and the colelctor electrode of triode VT6 between, described resistance R 18 is serially connected in the base stage of triode VT6And drive between the LD pin of chip U. The P utmost point of described diode D10 and the base stage of triode VT6Be connected, its N utmost point is connected with the emitter stage of triode VT7. The N utmost point of described diode D11 with driveThe RI pin of moving chip U is connected, its P utmost point after resistance R 17 with the emitter stage phase of triode VT7Connect. The P utmost point of described diode D9 is connected with the GATE pin that drives chip U after resistance R 16Connect, its N utmost point is connected with the colelctor electrode of triode VT7. The positive pole of described capacitor C 6 and driving chip UCS pin be connected, its negative pole is ground connection after resistance R 19. The P utmost point and the electric capacity of described diode D12The negative pole of C6 is connected, and its N utmost point is connected with the base stage of triode VT7.
Meanwhile, the GATE pin of described driving chip U is connected with the sliding end of slide rheostat R14,Its RI pin is connected with the emitter stage of triode VT6, its GND pin ground connection, described triode VT6Base stage be connected with the colelctor electrode of triode VT7. The base stage of described triode VT5 is as drive circuitInput respectively with open the door control circuit with close gate control circuit be connected, concrete, described triodeThe base stage of VT5 is connected with the N utmost point of diode D5 after the normally opened contact K1-1 of relay K 1, withTime, the base stage of this triode VT5 also after the normally opened contact K2-1 of relay K 2 with the N of diode D7The utmost point is connected; The base stage of described triode VT7 is connected with lifting motor as the output of drive circuitConnect.
As shown in Figure 4, described pre-amplification circuit is by amplifier P1, amplifier P2, and triode VT8,Diode D13, diode D14, diode D15, capacitor C 7, capacitor C 8, resistance R 20, resistanceR21, resistance R 22, slide rheostat R23 and resistance R 24 form. Described pre-amplification circuit can be to lightThe signal of electric transducer and infrared sensor collection amplifies processing, is convenient to A/D converter and carry out conversion placeReason.
When connection, the N utmost point of described diode D13 is connected with the negative input end of amplifier P1, its P utmost pointAfter resistance R 20, be connected with the output of amplifier P1. The positive pole of described capacitor C 7 and amplifier P2Negative input end be connected, its minus earth. The N utmost point of described diode D15 after resistance R 21 with twoThe P utmost point of utmost point pipe D13 is connected, and its P utmost point is connected with the emitter stage of triode VT8. Described capacitor C 8Positive pole after slide rheostat R23, be connected with the output of amplifier P2, its negative pole and triode VT8Base stage be connected. The P utmost point of described diode D14 is connected with the output of amplifier P1, its N utmost pointBe connected with the output of amplifier P2. Described resistance R 22 is serially connected in the output and electricity of amplifier P2Hold between the positive pole of C8. One end of described resistance R 24 is connected with the base stage of triode VT8, its anotherEnd is connected as pre-amplification circuit output and with A/D converter jointly with the positive pole of capacitor C 8. InstituteThe base stage of stating triode VT8 is connected with the control end of slide rheostat R23, and described amplifier P2 justInput is connected with the output of amplifier P1. The positive input terminal of described amplifier P1 and diode D13P extremely jointly as the input of pre-amplification circuit and respectively with photoelectric sensor and infrared sensor phaseConnect.
As mentioned above, just can realize preferably the present invention.

Claims (6)

1. the rolling screen door automatic control system based on drive-type pre-amplification circuit, is characterized in that:Mainly, by central processing unit, the A/D converter being all connected with central processing unit and control circuit, with A/DThe pre-amplification circuit that converter is connected, the photoelectric sensor being all connected with pre-amplification circuit and infraredSensor, the drive circuit being connected with control circuit, and the lifting motor group being connected with drive circuitBecome; Described control circuit is by control chip IC, the signal circuits for triggering that input is connected with central processing unit,And the control circuit that opens the door that output is all connected with drive circuit forms with pass gate control circuit; Described letterNumber circuits for triggering with open the door control circuit and close gate control circuit and be all connected with control chip IC.
2. a kind of rolling screen door based on drive-type pre-amplification circuit according to claim 1 is with automaticControl system, is characterized in that: described drive circuit is by driving chip U, triode VT5, triodeVT6, triode VT7, is serially connected in the base stage of triode VT5 and drives between the VIN pin of chip UResistance R 12, be serially connected in the emitter stage of triode VT5 and drive between the PWMD pin of chip UResistance R 13, the P utmost point is connected with the colelctor electrode of triode VT5, the N utmost point and the ROTP that drives chip UThe diode D8 that pin is connected, anodal after slide rheostat R14 with the emitter stage phase of triode VT5The capacitor C 5 of connection, minus earth, is serially connected in the N utmost point of diode D8 and the colelctor electrode of triode VT6Between resistance R 15, be serially connected in the base stage of triode VT6 and drive between the LD pin of chip UResistance R 18, the P utmost point is connected with the base stage of triode VT6, the emitter stage phase of the N utmost point and triode VT7The diode D10 connecting, the N utmost point is connected with the RI pin of driving chip U, the P utmost point is after resistance R 17The diode D11 being connected with the emitter stage of triode VT7, the P utmost point after resistance R 16 with drive chip UThe diode D9 that GATE pin is connected, the N utmost point is connected with the colelctor electrode of triode VT7, positive poleBe connected with the CS pin that drives chip U, the capacitor C 6 of negative pole ground connection after resistance R 19, and PThe diode D12 that the utmost point is connected with the negative pole of capacitor C 6, the N utmost point is connected with the base stage of triode VT7Composition; The GATE pin of described driving chip U is connected with the sliding end of slide rheostat R14, itsRI pin is connected with the emitter stage of triode VT6, its GND pin ground connection; Described triode VT6Base stage be connected with the colelctor electrode of triode VT7, the base stage of described triode VT5 is as drive circuitInput respectively with open the door control circuit with close gate control circuit be connected, the base of described triode VT7The utmost point is connected with lifting motor as the output of drive circuit.
3. a kind of rolling screen door based on drive-type pre-amplification circuit according to claim 2 is with automaticControl system, is characterized in that: described pre-amplification circuit is by amplifier P1, amplifier P2, triodeVT8, the N utmost point is connected with the negative input end of amplifier P1, the P utmost point after resistance R 20 with amplifier P1'sThe diode D13 that output is connected, positive pole is connected with the negative input end of amplifier P2, minus earthCapacitor C 7, the N utmost point is connected with the P utmost point of diode D13 after resistance R 21, the P utmost point and triode VT8The diode D15 that is connected of emitter stage, anodal after slide rheostat R23 with the output of amplifier P2The capacitor C 8 that end is connected, negative pole is connected with the base stage of triode VT8, the P utmost point and amplifier P1's is defeatedGo out the diode D14 that end is connected, the N utmost point is connected with the output of amplifier P2, be serially connected in amplifierResistance R 22 between the positive pole of the output of P2 and capacitor C 8, and the base stage of one end and triode VT8Be connected, the positive pole of the other end and capacitor C 8 changes as pre-amplification circuit output and with A/D jointlyThe resistance R 24 that device is connected forms; The control of the base stage of described triode VT8 and slide rheostat R23End is connected, and the positive input terminal of described amplifier P2 is connected with the output of amplifier P1; Described amplificationThe extremely common input as pre-amplification circuit of the P of the positive input terminal of device P1 and diode D13 differenceBe connected with infrared sensor with photoelectric sensor.
4. a kind of rolling screen door based on drive-type pre-amplification circuit according to claim 3 is with automaticControl system, is characterized in that: described signal circuits for triggering are by triode VT1, triode VT2, the P utmost pointAfter resistance R 1, be connected with the base stage of triode VT1, the CONT pin of the N utmost point and control chip ICThe diode D2 being connected, one end is connected with the base stage of triode VT1, the other end and control chip ICThe slide rheostat R2 that is connected of CONT pin, the P utmost point is connected with the emitter stage of triode VT1,The diode D3 that the N utmost point is connected with the THR pin of control chip IC, the collection of the N utmost point and triode VT1The diode D1 that electrode is connected, the P utmost point is connected with the RES pin of control chip IC after resistance R 3,Positive pole is connected with the P utmost point of diode D1, the capacitor C 1 of minus earth, one end and triode VT1'sBase stage is connected with the base stage of triode VT1 as input, the other end of signal circuits for triggering jointlyResistance R 5, is serially connected in the resistance R 4 between the base stage of triode VT1 and the colelctor electrode of triode VT2,The capacitor C 2 that positive pole is connected with the base stage of triode VT2, negative pole is connected with the base stage of triode VT1,The N utmost point is connected with the CONT pin of control chip IC after relay K 1, the P utmost point and the control circuit that opens the doorThe diode D4 being connected, and one end is connected with the negative pole of capacitor C 2 after relay K 2, anotherEnd forms with the resistance R 10 that pass gate control circuit is connected; The emitter stage of described triode VT2 and controlThe CONT pin of chip IC is connected, the emitter stage of described triode VT1 with slide rheostat R2Sliding end be connected.
5. a kind of rolling screen door based on drive-type pre-amplification circuit according to claim 4 is with automaticControl system, is characterized in that: described in open the door control circuit by triode VT3, the P utmost point is after resistance R 7Be connected with the emitter stage of triode VT3, the N utmost point after the normally opened contact K1-1 of relay K 1 with liftingThe diode D5 that motor is connected, one end is connected with the base stage of triode VT1, the other end and diodeThe resistance R 6 that the N utmost point of D5 is connected, and anodal be connected with the P utmost point of diode D5, negative pole and passThe capacitor C 3 that gate control circuit is connected forms; The colelctor electrode of described triode VT3 and diode D4'sThe P utmost point is connected, and its emitter stage is connected with the DIS pin of control chip IC.
6. a kind of rolling screen door based on drive-type pre-amplification circuit according to claim 5 is with automaticControl system, is characterized in that: described pass gate control circuit is by triode VT4, anodal after resistance R 8The capacitor C 4 be connected with the base stage of triode VT3, negative pole being connected with the colelctor electrode of triode VT4,The P utmost point and two utmost points that the OUT pin of control chip IC is connected, the N utmost point is connected with the positive pole of capacitor C 4Pipe D6, the P utmost point is connected with the emitter stage of triode VT4, the N utmost point is through the normally opened contact K2-1 of relay K 2The diode D7 being connected with lifting motor afterwards, is serially connected in the N utmost point of diode D7 and the positive pole of capacitor C 4Between resistance R 9, and be serially connected in the electricity between the P utmost point of diode D7 and the base stage of triode VT4Resistance R11 composition; The emitter stage of described triode VT4 is connected with the negative pole of capacitor C 3, and its base stage in turnBe connected with the negative pole of capacitor C 2 after relay K 2 through resistance R 10; The GND of described control chip ICPin ground connection.
CN201510963754.1A 2015-12-19 2015-12-19 Automatic control system for rolling door based on driving pre-amplification electric circuit Pending CN105607531A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63268645A (en) * 1987-04-28 1988-11-07 Fuji Kikai Kogyo Kk Ink film thickness controller
CN101064792A (en) * 2006-04-28 2007-10-31 三星Techwin株式会社 Photographing apparatus and method
CN102400599A (en) * 2011-11-30 2012-04-04 郑州新大陆智能科技有限公司 Remote control electric rolling door direct-current motor control circuit with automatic locking function
CN102632646A (en) * 2012-03-30 2012-08-15 蒙特集团(香港)有限公司 Shutter material for transmitting curtain with flexible composite structure and method for manufacturing shutter material
CN202874927U (en) * 2012-05-29 2013-04-17 曹锐冠 Light regulating device
CN204402331U (en) * 2014-12-30 2015-06-17 齐齐哈尔大学 SCM Based automatic curtain rolling device
CN105162237A (en) * 2015-08-31 2015-12-16 成都科创城科技有限公司 Intelligent home system for bracelet-type multi-speech signal collection device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63268645A (en) * 1987-04-28 1988-11-07 Fuji Kikai Kogyo Kk Ink film thickness controller
CN101064792A (en) * 2006-04-28 2007-10-31 三星Techwin株式会社 Photographing apparatus and method
CN102400599A (en) * 2011-11-30 2012-04-04 郑州新大陆智能科技有限公司 Remote control electric rolling door direct-current motor control circuit with automatic locking function
CN102632646A (en) * 2012-03-30 2012-08-15 蒙特集团(香港)有限公司 Shutter material for transmitting curtain with flexible composite structure and method for manufacturing shutter material
CN202874927U (en) * 2012-05-29 2013-04-17 曹锐冠 Light regulating device
CN204402331U (en) * 2014-12-30 2015-06-17 齐齐哈尔大学 SCM Based automatic curtain rolling device
CN105162237A (en) * 2015-08-31 2015-12-16 成都科创城科技有限公司 Intelligent home system for bracelet-type multi-speech signal collection device

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