CN107885112B - Automatic response cell-phone presss from both sides - Google Patents
Automatic response cell-phone presss from both sides Download PDFInfo
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- CN107885112B CN107885112B CN201711057463.1A CN201711057463A CN107885112B CN 107885112 B CN107885112 B CN 107885112B CN 201711057463 A CN201711057463 A CN 201711057463A CN 107885112 B CN107885112 B CN 107885112B
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- 238000001514 detection method Methods 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims description 41
- 230000002265 prevention Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/0295—Constructional arrangements for removing other types of optical noise or for performing calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0425—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using optical fibers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
- G01J2001/444—Compensating; Calibrating, e.g. dark current, temperature drift, noise reduction or baseline correction; Adjusting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
- G01J2001/4446—Type of detector
- G01J2001/446—Photodiode
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25192—Infrared
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Telephone Function (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses an automatic induction mobile phone clamp which comprises a fixed clamping block, a movable clamping block, a driving system and a circuit board, wherein an MCU (microprogrammed control Unit) control circuit, an infrared code transmitting circuit, an infrared code receiving circuit, a motor driving circuit, a light ray detection circuit, an anti-false triggering jitter anti-interference circuit and the like are arranged on the circuit board. The infrared code transmitting circuit and the infrared code receiving circuit are arranged, so that the infrared signals can be coded, the infrared signals received by the infrared code receiving circuit are different from infrared rays in sunlight, the interference of the infrared rays in the sunlight on the infrared sensing equipment is avoided, and the using effect of a product is improved; the light detection circuit is arranged, and the MCU control circuit can trigger the infrared coding transmitting circuit to work only when the detected light brightness is below a reference brightness, so that the interference caused by infrared rays in sunlight is further reduced; the anti-false-triggering shaking interference circuit is arranged, interference caused by light sudden change can be responded, and the stability of the product is further improved.
Description
The technical field is as follows:
the invention belongs to the technical field of electronic products, and particularly relates to an automatic induction mobile phone clamp.
Background art:
the existing mobile phone clamps are of various types, including clamping type and adsorption type, the existing mobile phone supports are generally clamped manually, but the movable blocks are required to be manually opened before clamping, so that the mobile phone clamps are very labor-consuming, and are usually operated by two hands, so that the mobile phone clamps are inconvenient to take without leaving hands. Therefore, the mobile phone support capable of being automatically clamped appears in the market, and time and labor are saved.
Automatic clamp's cell-phone presss from both sides needs to set up the position that induction element comes the response cell-phone to press from both sides and go up the cell-phone to control actuating system work, current induction element adopts infrared induction equipment mostly, and infrared induction equipment when the outside is used, because there is the infrared ray in the sunshine, infrared induction equipment receives the interference easily, influences its result of use.
The invention content is as follows:
therefore, the technical problem to be solved by the present invention is that the infrared sensing device for the mobile phone clip in the prior art is easily interfered by infrared rays in sunlight to affect the using effect thereof, thereby providing an automatic sensing mobile phone clip.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an auto-induction cell phone clip, comprising:
the clamping device comprises a fixed clamping block and a movable clamping block which are arranged on a shell, a driving system used for driving the movable clamping block, and a circuit board arranged at the lower end of the shell.
The circuit board is provided with an MCU control circuit, an infrared coding transmitting circuit, an infrared coding receiving circuit and a motor driving circuit, the MCU control circuit sends signals to the infrared coding transmitting circuit, the infrared coding transmitting circuit transmits infrared coding signals, the infrared coding receiving circuit receives the infrared coding signals and sends the infrared coding signals to the MCU control circuit, the MCU control circuit judges whether the received infrared coding signals are consistent with the sent signals, and the MCU control circuit controls the motor driving circuit to trigger work according to the judgment result.
Preferably, the infrared encoding transmitting circuit includes a first resistor R1, a sixteenth resistor R16, a fifth triode Q5, and a light emitter of a photocoupler OP1, a first end of the first resistor R1 is connected to a pin 12 of a control chip U1 in the MCU control circuit, a second end of the first resistor R1 is connected to a base of the fifth triode Q5, an emitter of the fifth triode Q5 is grounded, a collector of the fifth triode Q5 is connected to a first end of the sixteenth resistor R16, a second end of the sixteenth resistor R16 is connected to a negative electrode of the light emitter of the photocoupler OP1, a positive electrode of the light emitter of the photocoupler OP1 is connected to a voltage of +5V, a first end of the second capacitor C2 is connected to a voltage of +5V, and a second end of the second capacitor C2 is grounded.
Preferably, the infrared encoding receiving circuit includes a photo-detector of a photo-coupler OP1, a sixth resistor R6, and a first capacitor C1, wherein an emitter of the photo-detector of the photo-coupler OP1 is connected to pin 13 of the control chip U1, a collector of the photo-detector of the photo-coupler OP1 is grounded, a first end of the sixth resistor R6 is connected to an emitter of the photo-detector of the photo-coupler OP1, a second end of the sixth resistor R6 is connected to a voltage of +5V, a first end of the first capacitor C1 is connected to an emitter of the photo-detector of the photo-coupler OP1, and a second end of the first capacitor C1 is grounded.
Preferably, the motor driving circuit includes a MOTO connection port, a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a seventh resistor R7, a thirteenth resistor R13, and a third capacitor C3, wherein a base of the second diode Q2 is connected in series with the second resistor R2 and then connected to the pin 10 of the control chip U1 in the MCU control circuit (6), an emitter of the second transistor Q2 is grounded, a collector of the second transistor Q2 is connected to a collector of the first transistor 686q 9, an emitter of the first transistor Q1 is connected to a voltage of +5V, a base of the first transistor Q1 is connected in series with the third resistor R3 and then connected to a collector of the third transistor Q3, an emitter of the third transistor Q3 is grounded, a base of the third transistor Q3 is connected in series with the pin 5 of the control chip U369, the collector of fourth triode Q4 is connected with the collector of third triode Q3, the emitter of fourth triode Q4 is connected with +5V voltage, the base of fourth triode Q4 is connected with the collector of second triode Q2 after being connected with fourth resistor R4 in series, the two ends of third capacitor C3 are connected with the collector of second triode Q2 and the collector of third triode Q3 respectively, pin 1 and pin 2 of MOTO junction are connected with motor respectively, pin 1 of MOTO junction is connected with the collector of third triode Q3 after being connected with thirteenth resistor R13 in series, pin 2 of MOTO junction is connected with the collector of first triode Q1, pin 3 of MOTO junction is grounded, pin 4 of MOTO junction is connected with +5V voltage after being connected with seventh resistor R7 in series.
Preferably, the circuit board is further provided with a light detection circuit, the light detection circuit is used for detecting light brightness and sending a detection signal to the MCU control circuit, and the MCU control circuit controls the infrared code emitting circuit to trigger operation according to the received detection signal.
Preferably, the circuit board is further provided with an anti-false triggering jitter anti-interference circuit.
Preferably, the light detection circuit includes a seventeenth resistor R17 and a photodiode D1, the false trigger jitter prevention and interference rejection circuit includes an eighteenth resistor R18 and a fifth capacitor C5, a voltage of +5V is connected to a first end of the seventeenth resistor R17, a second end of the seventeenth resistor R17 is connected to a negative electrode of the photodiode D1, an anode of the photodiode D1 is grounded, a first end of the eighteenth resistor R18 is connected to a second end of the seventeenth resistor R17, a second end of the eighteenth resistor R18 is connected to pin 1 of a control chip U1 in the MCU control circuit, a first end of the fifth capacitor C5 is connected to a second end of the eighteenth resistor R18, and a second end of the fifth capacitor C5 is grounded.
Preferably, the circuit board is further provided with a mobile phone charging identification circuit, the mobile phone charging identification circuit includes a first USB connector J1, a second USB connector J2, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, and a fourth capacitor C4, pin 1 of the first USB connector J1 and pin 1 of the second USB connector J2 are respectively connected to +5V, pin 5 and pin 6 of the first USB connector J1 are respectively grounded, pin 4, pin 5, and pin 6 of the second USB connector J2 are respectively grounded, a first end of the ninth resistor R9 is connected to +5V, a second end of the ninth resistor R9 is connected to pin 3 of the second USB connector J2, one end of the tenth resistor R10 is connected to a second end of the ninth resistor R9, a second end of the tenth resistor R6 is grounded, a second end of the eleventh resistor R11 is connected to the second end of the second USB connector J11, the first end of the twelfth resistor R12 is connected with the voltage of +5V, the second end of the twelfth resistor R12 is connected with the second end of the eleventh resistor R11, the first end of the fourth capacitor C4 is connected with the voltage of +5V, and the second end of the fourth capacitor C4 is grounded.
The invention has the beneficial effects that: the infrared sensing device is provided with the infrared coding transmitting circuit and the infrared coding receiving circuit, so that an infrared signal can be coded, the infrared signal received by the infrared coding receiving circuit and transmitted by the infrared coding transmitting circuit is different from infrared rays in sunlight, interference of the infrared rays in the sunlight on the infrared sensing device is avoided, and the using effect of the infrared sensing device is improved; by arranging the light detection circuit, the MCU control circuit can trigger the infrared coding transmitting circuit to work only when the detected light brightness is below a reference brightness, so that the interference caused by infrared rays in sunlight is further reduced; it is through setting up the mistake and triggering the interference circuit that shakes, can deal with the interference that the light sudden change condition caused, further increases the stability of product.
Description of the drawings:
the drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
fig. 1 is a schematic front view of an auto-induction mobile phone clip according to an embodiment of the present invention;
fig. 2 is a schematic view of a reverse structure of an automatic sensing mobile phone clamp after a rear cover plate is hidden according to an embodiment of the invention;
fig. 3 is a circuit diagram of an auto-induction handset clip according to an embodiment of the present invention;
FIG. 4 is a diagram of a light detection circuit and anti-glitch circuit for preventing false trigger jitter according to an embodiment of the present invention;
FIG. 5 is a circuit diagram of a charging identification circuit for a mobile phone according to an embodiment of the present invention;
fig. 6 is a limit switch circuit according to an embodiment of the present invention.
The symbols in the drawings illustrate that:
the mobile phone comprises a shell, 2 parts of a fixed clamping block, 3 parts of a movable clamping block, 4 parts of a driving system, 5 parts of a circuit board, 6 parts of an MCU control circuit, 7 parts of an infrared code transmitting circuit, 8 parts of an infrared code receiving circuit, 9 parts of a motor driving circuit, 10 parts of a light detection circuit, 11 parts of an anti-false trigger jitter anti-interference circuit, 12 parts of a mobile phone charging identification circuit and 13 parts of a limit switch circuit.
The specific implementation mode is as follows:
as shown in fig. 1 and 2, an auto-induction mobile phone holder according to the present invention includes:
the clamping device comprises a fixed clamping block 2 and a movable clamping block 3 which are arranged on a shell 1, a driving system 4 for driving the movable clamping block 3, and a circuit board 5 arranged at the lower end of the shell 1.
As shown in fig. 3, the circuit board 5 is provided with an MCU control circuit 6, an infrared code transmitting circuit 7, an infrared code receiving circuit 8 and a motor driving circuit 9, the MCU control circuit 6 sends a signal to the infrared code transmitting circuit 7, the infrared code transmitting circuit 7 transmits an infrared code signal, the infrared code receiving circuit 8 receives the infrared code signal and sends it to the MCU control circuit 6, the MCU control circuit 6 determines whether the received infrared code signal is consistent with the sent signal, and the MCU control circuit 6 controls the motor driving circuit 6 to operate according to the determination result.
The infrared coding transmitting circuit 7 comprises a first resistor R1, a sixteenth resistor R16, a fifth triode Q5 and a light emitter of a photoelectric coupler OP1, wherein the first end of the first resistor R1 is connected with a pin 12 of a control chip U1 in the MCU control circuit 6, the second end of the first resistor R1 is connected with a base of the fifth triode Q5, an emitter of the fifth triode Q5 is grounded, a collector of the fifth triode Q5 is connected with the first end of the sixteenth resistor R16, the second end of the sixteenth resistor R16 is connected with a negative electrode of the light emitter of the photoelectric coupler OP1, a positive electrode of the light emitter of the photoelectric coupler OP1 is connected with +5V voltage, the first end of the second capacitor C2 is connected with +5V voltage, and the second end of the second capacitor C2 is grounded.
The infrared coding receiving circuit 8 comprises a light receiver of a photoelectric coupler OP1, a sixth resistor R6 and a first capacitor C1, wherein an emitter of the light receiver of the photoelectric coupler OP1 is connected with the 13 pin of the control chip U1, a collector of the light receiver of the photoelectric coupler OP1 is grounded, a first end of the sixth resistor R6 is connected with an emitter of the light receiver of the photoelectric coupler OP1, a second end of the sixth resistor R6 is connected with +5V voltage, a first end of the first capacitor C1 is connected with an emitter of the light receiver of the photoelectric coupler OP1, and a second end of the first capacitor C1 is grounded.
The motor driving circuit 9 comprises a MOTO connection port, a first triode Q1, a second triode Q2, a third triode Q3, a fourth triode Q4, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a seventh resistor R7, a thirteenth resistor R13 and a third capacitor C3, wherein the base of a second diode Q2 is connected in series with a second resistor R2 and then connected with the 10 pin of a control chip U1 in the MCU control circuit (6), the emitter of the second triode Q2 is grounded, the collector of the second triode Q2 is connected with the collector of a first triode Q1, the emitter of the first triode Q1 is connected with +5V voltage, the base of the first triode Q1 is connected in series with the third resistor R1 and then connected with the collector of the third triode Q1, the emitter of the third triode Q1 is grounded, the base of the third triode Q1 is connected in series with the collector of the fourth triode Q1, the emitter of fourth triode Q4 is connected with +5V voltage, the collector of second triode Q2 is connected after the base of fourth triode Q4 is connected with fourth resistor R4 in series, the collector of second triode Q2 and the collector of third triode Q3 are connected respectively at the both ends of third capacitor C3, motor is connected respectively to pin 1 and pin 2 of MOTO wiring port, the collector of third triode Q3 is connected after pin 1 of MOTO wiring port is connected with thirteenth resistor R13 in series, the collector of first triode Q1 is connected to pin 2 of MOTO wiring port, pin 3 of MOTO wiring port is grounded, pin 4 of MOTO wiring port is connected with +5V voltage after being connected with seventh resistor R7 in series. The MUC sends out a high level to enable the Q2 to be conducted through the R2, the collector of the Q2 (namely the MOTO connector 2 pin) becomes a low level, the base of the Q4 becomes a low level to be conducted through the R4, the collector of the Q4 (from the R13 to the MOTO connector 1 pin) becomes a high level, and at the moment, the MOTO interface 1.2 pin generates a positive voltage difference, and the motor rotates forwards. MCU sends high level and passes through R5, makes Q3 turn on, and the Q3 collecting electrode (through R13 to MOTO wiring port 1 foot) becomes low level, and through R3, Q1 base electrode becomes low level and switches on, and Q1 collecting electrode (MOTO wiring port 1 foot) becomes high level, and MOTO wiring port 1, 2 feet produced the negative voltage difference this moment, and the motor reverses.
The circuit board 5 is further provided with a light detection circuit 10, the light detection circuit 10 is used for detecting light brightness and sending a detection signal to the MCU control circuit 6, and the MCU control circuit 6 controls whether the infrared coding emission circuit 7 is triggered to work or not according to the received detection signal.
And the circuit board 5 is also provided with an anti-false triggering and jitter anti-interference circuit 11.
As shown in fig. 4, the light detection circuit 10 includes a seventeenth resistor R17 and a photodiode D1, the anti-false-triggering jitter anti-interference circuit 11 includes an eighteenth resistor R18 and a fifth capacitor C5, a voltage of +5V is connected to a first end of the seventeenth resistor R17, a second end of the seventeenth resistor R17 is connected to a negative electrode of the photodiode D1, an anode of the photodiode D1 is grounded, a first end of the eighteenth resistor R18 is connected to a second end of the seventeenth resistor R17, a second end of the eighteenth resistor R18 is connected to a pin 1 of a control chip U1 in the MCU control circuit 6, a first end of the fifth capacitor C5 is connected to a second end of the eighteenth resistor R18, and a second end of the fifth capacitor C5 is grounded.
The circuit board 5 is further provided with a mobile phone charging identification circuit 12, as shown in fig. 5, the mobile phone charging identification circuit 12 includes a first USB connector J1, a second USB connector J2, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, and a fourth capacitor C4, where pin 1 of the first USB connector J1 and pin 1 of the second USB connector J2 are respectively connected to +5V, pin 5 and pin 6 of the first USB connector J1 are respectively grounded, pin 4, pin 5, and pin 6 of the second USB connector J2 are respectively grounded, a first end of the ninth resistor R9 is connected to +5V, a second end of the ninth resistor R9 is connected to pin 3 of the second USB connector J2, one end of the tenth resistor R10 is connected to a second end of the ninth resistor R8, a second end of the tenth resistor R10 is connected to ground, a second end of the eleventh resistor R11 is connected to the second end of the second USB connector J11, the first end of the twelfth resistor R12 is connected with the voltage of +5V, the second end of the twelfth resistor R12 is connected with the second end of the eleventh resistor R11, the first end of the fourth capacitor C4 is connected with the voltage of +5V, and the second end of the fourth capacitor C4 is grounded.
Still be provided with limit switch circuit 13 on circuit board 5, as shown in fig. 6, limit switch circuit 13 includes eighth resistance R8 and limit switch interface S1, 8 feet of control chip U1 in MCU control circuit 6 are connected to limit switch interface S1' S1 foot, connect +5V voltage behind the eighth resistance R8 of 1 foot series connection of limit switch interface S1, and 2 feet ground connection of limit switch interface S1.
The working principle is as follows:
the MCU control circuit 6 sends a signal to the infrared code transmitting circuit 7, the infrared code transmitting circuit 7 transmits an infrared code signal, the infrared code receiving circuit 8 receives the infrared code signal and transmits the infrared code signal to the MCU control circuit 6, the MCU control circuit 6 judges whether the received infrared code signal is consistent with the sent signal or not, if so, the MCU control circuit 6 sends a signal to the motor driving circuit 9 to trigger action, and otherwise, infrared rays, ultraviolet rays and visible light do not act.
Due to the infrared coding mode, under specific outdoor light, the sensing distance can be increased, and the possibility of false triggering exists, so that the light detection circuit 10 is added, an object is arranged at the position where the mobile phone is clamped on the mobile phone to block the external light or at night, and only when the light brightness is below a reference brightness, the light detection circuit 10 can transmit a voltage value to the MCU control circuit 6 to judge whether the infrared coding transmitting circuit 7 works or not.
The mobile phone clip is used for the automobile, so the working environment is more complicated and changeable, the light mutation condition is more in the automobile running process, the false triggering prevention shake anti-interference circuit is added, and the stability of the product is further improved.
The automobile power supply has larger fluctuation, and a second capacitor C2 and a fourth capacitor C4 are arranged for filtering the power supply, so that the working voltage of the product is stabilized.
A mobile phone charging identification circuit is added to provide identification parameters of 1A for the charging current of the iphone mobile phone.
This embodiment an auto-induction cell-phone press from both sides, including setting up fixed clamp splice and the activity clamp splice on the casing, be used for the drive the actuating system of activity clamp splice, set up the circuit board at the casing lower extreme, be provided with MCU control circuit, infrared code transmitting circuit, infrared code receiving circuit, motor drive circuit, light detection circuitry on the circuit board, prevent that the mistake triggers shakes anti-interference circuit etc.. The infrared sensing device is provided with the infrared coding transmitting circuit and the infrared coding receiving circuit, so that an infrared signal can be coded, the infrared signal received by the infrared coding receiving circuit and transmitted by the infrared coding transmitting circuit is different from infrared rays in sunlight, interference of the infrared rays in the sunlight on the infrared sensing device is avoided, and the using effect of the infrared sensing device is improved; by arranging the light detection circuit, the MCU control circuit can trigger the infrared coding transmitting circuit to work only when the detected light brightness is below a reference brightness, so that the interference caused by infrared rays in sunlight is further reduced; it is through setting up the mistake and triggering the interference circuit that shakes, can deal with the interference that the light sudden change condition caused, further increases the stability of product.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (4)
1. An auto-induction cell phone clip, comprising:
the clamping device comprises a fixed clamping block (2) and a movable clamping block (3) which are arranged on a shell (1), a driving system (4) for driving the movable clamping block (3), and a circuit board (5) arranged at the lower end of the shell (1);
the circuit board (5) is provided with an MCU control circuit (6), an infrared coding transmitting circuit (7), an infrared coding receiving circuit (8) and a motor driving circuit (9), the MCU control circuit (6) sends a signal to the infrared coding transmitting circuit (7), the infrared coding transmitting circuit (7) transmits an infrared coding signal, the infrared coding receiving circuit (8) receives the infrared coding signal and sends the infrared coding signal to the MCU control circuit (6), the MCU control circuit (6) judges whether the received infrared coding signal is consistent with the sent signal or not, and the MCU control circuit (6) controls the motor driving circuit (9) to trigger work or not according to a judgment result;
the circuit board (5) is also provided with a light detection circuit (10), the light detection circuit (10) is used for detecting light brightness and sending a detection signal to the MCU control circuit (6), and the MCU control circuit (6) controls the infrared coding emission circuit (7) to trigger work or not according to the received detection signal;
the circuit board (5) is also provided with an anti-false triggering jitter anti-interference circuit (11);
the light detection circuit (10) comprises a seventeenth resistor R17 and a photodiode D1, the false triggering prevention and jitter anti-interference circuit (11) comprises an eighteenth resistor R18 and a fifth capacitor C5, the first end of the seventeenth resistor R17 is connected with +5V voltage, the second end of the seventeenth resistor R17 is connected with the negative electrode of the photodiode D1, the positive electrode of the photodiode D1 is grounded, the first end of the eighteenth resistor R18 is connected with the second end of the seventeenth resistor R17, the second end of the eighteenth resistor R18 is connected with the pin 1 of a control chip U1 in the MCU control circuit (6), the first end of the fifth capacitor C5 is connected with the second end of the eighteenth resistor R18, and the second end of the fifth capacitor C5 is grounded;
the circuit board (5) is further provided with a mobile phone charging identification circuit (12), the mobile phone charging identification circuit (12) comprises a first USB connector J1, a second USB connector J2, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12 and a fourth capacitor C4, wherein the pin 1 of the first USB connector J1 and the pin 1 of the second USB connector J2 are respectively connected with +5V voltage, the pin 5 and the pin 6 of the first USB connector J1 are respectively grounded, the pin 4, the pin 5 and the pin 6 of the second USB connector J2 are respectively grounded, the first end of the ninth resistor R9 is connected with +5V voltage, the second end of the ninth resistor R9 is connected with the pin 3 of the second USB connector J2, one end of the tenth resistor R10 is connected with the second end of the ninth resistor R8, the second end of the tenth resistor R10 is connected with the second ground, the second end of the eleventh resistor R11 is connected with the second end of the second USB connector J11, the first end of the twelfth resistor R12 is connected with the voltage of +5V, the second end of the twelfth resistor R12 is connected with the second end of the eleventh resistor R11, the first end of the fourth capacitor C4 is connected with the voltage of +5V, and the second end of the fourth capacitor C4 is grounded.
2. The auto-induction mobile phone clip of claim 1, wherein:
the infrared coding transmitting circuit (7) comprises a first resistor R1, a sixteenth resistor R16, a fifth triode Q5 and a light emitter of a photoelectric coupler OP1, wherein the first end of the first resistor R1 is connected with a 12 pin of a control chip U1 in an MCU control circuit (6), the second end of the first resistor R1 is connected with a base electrode of the fifth triode Q5, an emitter electrode of the fifth triode Q5 is grounded, a collector electrode of the fifth triode Q5 is connected with the first end of the sixteenth resistor R16, the second end of the sixteenth resistor R16 is connected with a negative electrode of the light emitter of the photoelectric coupler OP1, a positive electrode of the light emitter of the photoelectric coupler OP1 is connected with a voltage of +5V, the first end of a second capacitor C2 is connected with a voltage of +5V, and the second end of the second capacitor C2 is grounded.
3. An auto-induction cell phone clip according to claim 2, wherein:
the infrared coding receiving circuit (8) comprises a light receiver of a photoelectric coupler OP1, a sixth resistor R6 and a first capacitor C1, wherein an emitter of the light receiver of the photoelectric coupler OP1 is connected with the 13 feet of the control chip U1, a collector of the light receiver of the photoelectric coupler OP1 is grounded, a first end of the sixth resistor R6 is connected with the emitter of the light receiver of the photoelectric coupler OP1, a second end of the sixth resistor R6 is connected with +5V voltage, a first end of the first capacitor C1 is connected with the emitter of the light receiver of the photoelectric coupler OP1, and a second end of the first capacitor C1 is grounded.
4. The auto-induction mobile phone clip of claim 1, wherein:
the motor driving circuit (9) comprises a MOTO connection port, a first triode Q1, a second triode Q2, a third triode Q3, a fourth triode Q4, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a seventh resistor R7, a thirteenth resistor R13 and a third capacitor C3, wherein the base of a second diode Q2 is connected in series with the second resistor R2 and then connected with the pin 10 of a control chip U1 in the MCU control circuit (6), the emitter of the second triode Q2 is grounded, the collector of the second triode Q2 is connected with the collector of a first triode Q1, the emitter of the first triode Q1 is connected with +5V voltage, the base of the first triode Q1 is connected in series with the collector of a third resistor R1 and then connected with the collector of a third triode Q1, the emitter of the third triode Q1 is grounded, the base of the third triode Q1 is connected in series with the collector of the fourth triode Q1, the emitter of fourth triode Q4 is connected with +5V voltage, the collector of second triode Q2 is connected after the base of fourth triode Q4 is connected with fourth resistor R4 in series, the collector of second triode Q2 and the collector of third triode Q3 are connected respectively at the both ends of third capacitor C3, motor is connected respectively to pin 1 and pin 2 of MOTO wiring port, the collector of third triode Q3 is connected after pin 1 of MOTO wiring port is connected with thirteenth resistor R13 in series, the collector of first triode Q1 is connected to pin 2 of MOTO wiring port, pin 3 of MOTO wiring port is grounded, pin 4 of MOTO wiring port is connected with +5V voltage after being connected with seventh resistor R7 in series.
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| CN201711057463.1A CN107885112B (en) | 2017-11-01 | 2017-11-01 | Automatic response cell-phone presss from both sides |
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| CN109140157A (en) * | 2018-10-23 | 2019-01-04 | 深圳市爱迪芯科技有限公司 | A kind of intelligent vehicle-carried bracket carrying out automation induction using microwave reflection principle |
| CN111753932A (en) * | 2020-05-29 | 2020-10-09 | 深圳市天毅科技有限公司 | Clamping device and card sender |
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