CN213122902U - Curtain lifting control circuit based on gesture recognition - Google Patents
Curtain lifting control circuit based on gesture recognition Download PDFInfo
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- CN213122902U CN213122902U CN202021848521.XU CN202021848521U CN213122902U CN 213122902 U CN213122902 U CN 213122902U CN 202021848521 U CN202021848521 U CN 202021848521U CN 213122902 U CN213122902 U CN 213122902U
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Abstract
The utility model relates to a projection equipment, it discloses a curtain lift control circuit based on gesture recognition, simplifies user's operation. The control circuit comprises a power supply circuit, a gesture recognition circuit and a motor control circuit; the gesture recognition circuit is connected with the motor control circuit; the power supply circuit is connected with the gesture recognition circuit and the motor control circuit; the gesture recognition circuit is used for recognizing the gesture of the user, converting the recognized gesture into a corresponding control instruction and sending the control instruction to the motor control circuit; the motor control circuit is used for controlling the forward rotation or the reverse rotation of the motor according to the corresponding control instruction so as to control the lifting of the curtain; the power supply circuit provides working voltage for the gesture recognition circuit and the motor control circuit. The utility model is suitable for a various projection system that have the curtain.
Description
Technical Field
The utility model relates to a projection equipment, concretely relates to curtain lift control circuit based on gesture recognition.
Background
With the popularization of various projection devices, projectors and projection screens are almost ubiquitous in our lives. At present, the lifting control of the projection curtain is mostly controlled by keys or remote control, and the operation is still not simple and convenient enough. With the gradual maturity and wide use of gesture recognition technology, if the curtain can be controlled to ascend and descend based on gesture recognition, the operation of a user can be simplified to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a screen lifting control circuit based on gesture recognition is provided, and operation of a user is simplified.
The utility model provides a technical scheme that above-mentioned technical problem adopted is:
a curtain lifting control circuit based on gesture recognition comprises a power supply circuit, a gesture recognition circuit and a motor control circuit; the gesture recognition circuit is connected with the motor control circuit; the power supply circuit is connected with the gesture recognition circuit and the motor control circuit;
the gesture recognition circuit is used for recognizing the gesture of the user, converting the recognized gesture into a corresponding control instruction and sending the control instruction to the motor control circuit; the motor control circuit is used for controlling the forward rotation or the reverse rotation of the motor according to the corresponding control instruction so as to control the lifting of the curtain; the power supply circuit provides working voltage for the gesture recognition circuit and the motor control circuit.
As a further optimization, the gesture recognition circuit comprises: the gesture recognition device comprises a single chip microcomputer U1, a gesture recognition chip U2, first to sixth resistors R1-R6, first to fourth capacitors C1-C4, a thirteenth capacitor C13, a first KEY KEY1, a crystal oscillator X1 and a first light emitting diode LED 1; the fourth resistor R4 is connected with a PB1 pin of the singlechip U1 through a first light-emitting diode LED 1; the crystal oscillator X1, the first capacitor C1 and the second capacitor C2 form a crystal oscillator circuit, and are connected to PF0 and PF1 pins of a single chip microcomputer U1; one end of the first KEY1 is grounded, and the other end is connected with an NRST pin of a singlechip U1; the fourth capacitor C4 is connected in parallel with the first KEY KEY1 and is connected with 3.3V voltage through a sixth resistor R6; the PA0 pin, the PA1 pin and the PA2 pin of the single chip microcomputer U1 are respectively and correspondingly connected with an SCL pin, an INT pin and an SDA pin of the gesture recognition chip U2 and are respectively connected with 3.3V voltage through a third resistor R3, a second resistor R2 and a first resistor R1; the VDD pin and the VDDA pin of the singlechip U1 are both connected with 3.3V voltage and are grounded through a parallel circuit of a third capacitor C3 and a thirteenth capacitor C13.
As a further optimization, the motor control circuit includes: the device comprises a permanent magnet synchronous motor M1, a first relay, a second relay, a first limit switch, a second limit switch, eighth to twelfth resistors R8-R12, a first triode Q1, a second triode Q2, a first diode D1 and a second diode D2; pins 1 of the first limit switch and the second limit switch are respectively connected with 3.3V voltage through an eighth resistor R8 and a seventh resistor R7, pins 2 are respectively connected with pins PA3 and PA4 of a singlechip U1, and pins 3 are all grounded; the base electrode of the first triode Q1 is connected with the PA5 pin of the singlechip U1 through a ninth resistor R9 and is grounded through a tenth resistor R10; the emitting electrode of the first triode Q1 is grounded, the collector electrode of the first triode Q1 is connected with the 4-pin of the first relay, and the collector electrode of the first triode Q1 is connected with 5V voltage through a first diode D1; a pin 1 of the first relay is connected with 5V voltage, and a pin 2 is connected with a CW signal line of a permanent magnet synchronous motor M1; the base electrode of the second triode Q2 is connected with the PA6 pin of the singlechip U1 through an eleventh resistor R11 and is grounded through a twelfth resistor R12; the emitting electrode of the second triode Q2 is grounded, the collector electrode of the second triode Q2 is connected with the 4-pin of the second relay, and the collector electrode of the second triode Q2 is connected with 5V voltage through a second diode D2; and a pin 1 of the second relay is connected with 5V voltage, a pin 2 is connected with a CCW signal wire of the permanent magnet synchronous motor M1, and a pin 3 of the second relay is connected with a pin 3 of the first relay.
As a further optimization, the power supply circuit comprises: the LED driving circuit comprises a first linear voltage stabilizer U4, a second linear voltage stabilizer U5, an AC/DC power supply module U6, a switch SW1, an alternating current power supply interface CN1, a fuse F1, seventh to twelfth capacitors C7-C12, a thirteenth resistor R13, a fourteenth resistor R14, a second LED2 and a third diode D3; the alternating current power interface CN1 is connected with the input end of the AC/DC power module U6 through a switch SW1 and a fuse F1; the output end of the AC/DC power supply module U6 outputs 5V voltage, and is simultaneously connected with the input ends of a first linear voltage stabilizer U4 and a second linear voltage stabilizer U5; the output end of the first linear voltage stabilizer U4 outputs 3.3V voltage and is grounded through a parallel circuit of a seventh capacitor C7 and an eighth capacitor C8; the output end of the second linear voltage stabilizer U5 outputs 3.3V voltage, supplies power for a VLED pin of a gesture recognition chip U2, and is grounded through a parallel circuit of an eleventh capacitor C11 and a twelfth capacitor C12; the thirteenth resistor R13 and the second light emitting diode LED2 are connected in series between the output end of the second linear voltage regulator U5 and the ground; the ninth capacitor C9, the tenth capacitor C10 and the third diode D3 are connected in parallel between the output end of the AC/DC power supply module U6 and the ground; the fourteenth resistor R14 is connected between two input terminals of the AC/DC power supply module U6.
The utility model has the advantages that:
based on the circuit design, a user can control the lifting of the curtain only by making simple gestures (such as swinging upwards or downwards), so that the operation is simplified, and the control efficiency is high.
Drawings
Fig. 1 is a schematic diagram of a curtain lifting control circuit based on gesture recognition in an embodiment.
Detailed Description
The utility model aims at providing a user's operation is simplified to curtain lift control circuit based on gesture recognition. The circuit comprises a single chip microcomputer gesture recognition circuit, a motor control circuit, a power supply circuit and the like. When a user makes a gesture of waving downwards or upwards in front of the gesture recognition chip, the gesture recognition chip can automatically recognize an action instruction, a gesture recognition result is stored in the register, the generated gesture is interrupted, the single chip microcomputer reads the gesture recognition result according to the I2C interface, and the permanent magnet synchronous motor is controlled to rotate so as to control the lifting of the curtain.
Example (b):
the curtain lifting control circuit based on gesture recognition in the embodiment is shown in fig. 1 and comprises a power supply circuit, a gesture recognition circuit and a motor control circuit; the gesture recognition circuit is connected with the motor control circuit; the power supply circuit is connected with the gesture recognition circuit and the motor control circuit; the gesture recognition circuit is used for recognizing the gesture of the user, converting the recognized gesture into a corresponding control instruction and sending the control instruction to the motor control circuit; the motor control circuit is used for controlling the forward rotation or the reverse rotation of the motor according to the corresponding control instruction so as to control the lifting of the curtain; the power supply circuit provides working voltage for the gesture recognition circuit and the motor control circuit.
The respective portions are specifically described as follows:
1. the gesture recognition circuit:
in the embodiment, the partial circuit comprises a single chip microcomputer U1, a gesture recognition chip U2, first to sixth resistors R1-R6, first to fourth capacitors C1-C4, a thirteenth capacitor C13, a first KEY KEY1, a crystal oscillator X1, a first light emitting diode LED1 and the like; the single chip microcomputer U1 adopts STM32F030F4P6 as a main control chip; the first capacitor C1, the second capacitor C2 and the crystal oscillator X1 form a crystal oscillator circuit of the singlechip; the sixth resistor R6(10K), the fourth capacitor C4 and the first KEY KEY1 form a singlechip reset circuit, the tenth resistor R10 is a pull-down resistor, and the BOOT0 of the singlechip is pulled down to be at a low level, so that the singlechip is started from the flash memory. And the third capacitor C3 and the thirteenth capacitor C13 are power supply filter capacitors of the singlechip. The gesture recognition chip U2 selects PAJ7620U2, an LED driver, a sensor sensing array, a target information extraction array and a gesture recognition array are arranged in the chip, when the sensor array detects an object in an effective distance, the target information extraction array can acquire characteristic original data of the detected object, and the acquired data can be stored in a register. The first resistor R1, the second resistor R2 and the third resistor R3 are pull-up resistors for IIC communication.
2. Permanent magnet synchronous machine control circuit:
the circuit controls the triode amplifying circuit to drive the relay to control the on-off of the power supply of the motor through the singlechip, so as to control the positive and negative rotation of the permanent magnet synchronous motor and stop to achieve the aim of controlling the lifting and stopping of the curtain. It includes: permanent magnet synchronous motor M1, first relay, second relay, first limit switch, second limit switch, eighth to twelfth resistors R8-R12, first triode Q1, second triode Q2, first diode D1 and second diode D2
The ninth resistor R9, the tenth resistor R10, the first triode Q1 and the first diode D1 form a control circuit of the first relay, and the eleventh resistor R11, the twelfth resistor R12, the second triode Q2 and the second diode D2 form a control circuit of the second relay. When the curtain needs to be put down, the singlechip controls the first relay to be closed, at the moment, one phase of the permanent magnet synchronous motor is connected with commercial power, and at the moment, the motor rotates forwards to control the curtain to be put down; when the curtain descends to the right position and the descending limit switch is triggered, the singlechip controls the first relay to disconnect the motor and stop rotating, when the curtain needs to be folded, the singlechip controls the second relay to be closed, and at the moment, the motor reversely rotates to control the curtain to be folded; when the curtain is folded in place and the ascending limit switch is triggered, the singlechip controls the second relay to disconnect the motor to stop rotating, and the seventh resistor R7 and the eighth resistor R8 are the pull-up resistors of the limit switch.
3. A power supply circuit:
the partial circuit comprises a first linear voltage stabilizer U4, a second linear voltage stabilizer U5, an AC/DC power supply module U6, a switch SW1, an alternating current power supply interface CN1, a fuse F1, seventh to twelfth capacitors C7-C12, a thirteenth resistor R13, a fourteenth resistor R14, a second light emitting diode LED2 and a third diode D3;
the power supply system directly takes power from 220V mains supply, F1 is a 5A/250V slow fusing fuse, when the power supply of the equipment fails or is in short circuit, the equipment is cut off from the mains supply, and R14 is a voltage dependent resistor and is used for protecting the equipment from being damaged when the equipment is subjected to lightning stroke surge; u6 is an AC/DC power supply module, and can convert 220V alternating current into 5V direct current; the ninth capacitor C9 and the tenth capacitor C10 are output filter capacitors, and high-frequency noise of the output direct-current power supply is removed; d3 is TVS tube for protecting the latter stage circuit. The first linear voltage stabilizer U4 and the second linear voltage stabilizer U5 are both high-efficiency linear voltage stabilizers and stabilize 5V voltage to 3.3V, wherein U4 independently supplies power for an internal LED driver of the PAJ7620U2 gesture recognition chip to ensure the stability of the gesture recognition circuit, and U5 supplies power for all other parts of the circuit which need 3.3V; the seventh capacitor C7, the eleventh capacitor C11, the eighth capacitor C8 and the twelfth capacitor C12 are filter capacitors and are used for keeping voltage output stable; the thirteenth resistor R13 and the second light emitting diode LED2 form a 3.3V power indicator.
Claims (4)
1. A curtain lifting control circuit based on gesture recognition is characterized in that,
the device comprises a power supply circuit, a gesture recognition circuit and a motor control circuit; the gesture recognition circuit is connected with the motor control circuit; the power supply circuit is connected with the gesture recognition circuit and the motor control circuit;
the gesture recognition circuit is used for recognizing the gesture of the user, converting the recognized gesture into a corresponding control instruction and sending the control instruction to the motor control circuit; the motor control circuit is used for controlling the forward rotation or the reverse rotation of the motor according to the corresponding control instruction so as to control the lifting of the curtain; the power supply circuit provides working voltage for the gesture recognition circuit and the motor control circuit.
2. The curtain lifting control circuit based on gesture recognition as claimed in claim 1,
the gesture recognition circuit includes: the gesture recognition device comprises a single chip microcomputer (U1), a gesture recognition chip (U2), first to sixth resistors (R1-R6), first to fourth capacitors (C1-C4), a thirteenth capacitor (C13), a first KEY (KEY1), a crystal oscillator (X1) and a first light emitting diode (LED 1); the fourth resistor (R4) is connected with a PB1 pin of the singlechip (U1) through a first light emitting diode (LED 1); the crystal oscillator (X1), the first capacitor (C1) and the second capacitor (C2) form a crystal oscillator circuit, and the crystal oscillator circuit is connected to PF0 and PF1 pins of a single chip microcomputer (U1); one end of the first KEY (KEY1) is grounded, and the other end of the first KEY is connected with an NRST pin of the singlechip (U1); the fourth capacitor (C4) is connected with the first KEY (KEY1) in parallel and is connected with 3.3V voltage through a sixth resistor (R6); the PA0 pin, the PA1 pin and the PA2 pin of the single chip microcomputer (U1) are respectively and correspondingly connected with an SCL pin, an INT pin and an SDA pin of the gesture recognition chip (U2) and are respectively connected with 3.3V voltage through a third resistor (R3), a second resistor (R2) and a first resistor (R1); and the VDD pin and the VDDA pin of the singlechip (U1) are both connected with 3.3V voltage and are grounded through a parallel circuit of a third capacitor (C3) and a thirteenth capacitor (C13).
3. The curtain lifting control circuit based on gesture recognition as claimed in claim 2,
the motor control circuit includes: the circuit comprises a permanent magnet synchronous motor (M1), a first relay, a second relay, a first limit switch, a second limit switch, eighth to twelfth resistors (R8-R12), a first triode (Q1), a second triode (Q2), a first diode (D1) and a second diode (D2); pins 1 of the first limit switch and the second limit switch are respectively connected with 3.3V voltage through an eighth resistor (R8) and a seventh resistor (R7), pins 2 are respectively connected with pins PA3 and PA4 of a single chip microcomputer (U1), and pins 3 are both grounded; the base electrode of the first triode (Q1) is connected with the PA5 pin of the singlechip (U1) through a ninth resistor (R9) and is grounded through a tenth resistor (R10); the emitter of the first triode (Q1) is grounded, the collector of the first triode is connected with the 4 pins of the first relay, and the emitter is connected with the 5V voltage through a first diode (D1); the pin 1 of the first relay is connected with 5V voltage, and the pin 2 is connected with a CW signal line of a permanent magnet synchronous motor (M1);
the base electrode of the second triode (Q2) is connected with the PA6 pin of the singlechip (U1) through an eleventh resistor (R11) and is grounded through a twelfth resistor (R12); the emitting electrode of the second triode (Q2) is grounded, and the collector electrode of the second triode is connected with the 4-pin of the second relay and is connected with 5V voltage through a second diode (D2); and a pin 1 of the second relay is connected with 5V voltage, a pin 2 is connected with a CCW signal wire of the permanent magnet synchronous motor (M1), and a pin 3 of the second relay is connected with a pin 3 of the first relay.
4. The curtain lifting control circuit based on gesture recognition as claimed in claim 3,
the power supply circuit includes: the LED driving circuit comprises a first linear voltage stabilizer (U4), a second linear voltage stabilizer (U5), an AC/DC power supply module (U6), a switch (SW1), an alternating current power interface (CN1), a fuse (F1), seventh to twelfth capacitors (C7-C12), a thirteenth resistor (R13), a fourteenth resistor (R14), a second light-emitting diode (LED2) and a third diode (D3); the alternating current power supply interface (CN1) is connected with the input end of the AC/DC power supply module (U6) through a switch (SW1) and a fuse (F1); the output end of the AC/DC power supply module (U6) outputs 5V voltage, and is connected with the input ends of a first linear voltage stabilizer (U4) and a second linear voltage stabilizer (U5); the output end of the first linear voltage stabilizer (U4) outputs 3.3V voltage and is grounded through a parallel circuit of a seventh capacitor (C7) and an eighth capacitor (C8); the output end of the second linear voltage stabilizer (U5) outputs 3.3V voltage, supplies power to a VLED pin of a gesture recognition chip (U2), and is grounded through a parallel circuit of an eleventh capacitor (C11) and a twelfth capacitor (C12); the thirteenth resistor (R13) and the second light emitting diode (LED2) are connected in series between the output end of the second linear voltage regulator (U5) and the ground; the ninth capacitor (C9), the tenth capacitor (C10) and the third diode (D3) are connected in parallel between the output end of the AC/DC power supply module (U6) and the ground; the fourteenth resistor (R14) is connected between two input terminals of the AC/DC power supply module (U6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848521.XU CN213122902U (en) | 2020-08-28 | 2020-08-28 | Curtain lifting control circuit based on gesture recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848521.XU CN213122902U (en) | 2020-08-28 | 2020-08-28 | Curtain lifting control circuit based on gesture recognition |
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| Publication Number | Publication Date |
|---|---|
| CN213122902U true CN213122902U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021848521.XU Active CN213122902U (en) | 2020-08-28 | 2020-08-28 | Curtain lifting control circuit based on gesture recognition |
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|---|---|
| CN (1) | CN213122902U (en) |
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- 2020-08-28 CN CN202021848521.XU patent/CN213122902U/en active Active
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