CN214751365U - Intelligent non-contact automatic display clock with human body induction - Google Patents
Intelligent non-contact automatic display clock with human body induction Download PDFInfo
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- CN214751365U CN214751365U CN202121324187.2U CN202121324187U CN214751365U CN 214751365 U CN214751365 U CN 214751365U CN 202121324187 U CN202121324187 U CN 202121324187U CN 214751365 U CN214751365 U CN 214751365U
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Abstract
The utility model discloses an intelligence contactless automatic display clock with human response, including the clock body, circuit board and display screen, be provided with human response circuit, photoinduction circuit and the infrared detection circuit that MCU treater and MCU treater electricity are connected on the circuit board. The human body induction circuit consists of a pyroelectric infrared sensor and an infrared processing IC (integrated circuit), or the human body induction circuit consists of an infrared sensor and an infrared processing IC, the pyroelectric infrared sensor or the infrared sensor can detect human body activity and transmit the detected signal to the infrared processing IC for processing, and the infrared processing IC is internally provided with an amplifying circuit which amplifies a human body signal through the internal amplifying circuit and outputs a high level; the ambient light detection sensor detects the light and dark change of the ambient light, converts the light signal into an electric signal and transmits the electric signal to the MCU processor. The utility model discloses the power saving is effectual, can the quick start through the gesture response the utility model discloses an automatic display clock.
Description
Technical Field
The utility model relates to a clock, specific saying so relates to an intelligence contactless automatic display clock with human response.
Background
The clock is a common household article, and with the continuous progress of human body sensing technology, the clock can also be applied to the human body sensing technology in clock products.
When people get up at night, the clock senses the activity of the human body and then starts the light. But the existing clock does not start the time display of the clock.
Therefore, there is a need to develop a contactless human body sensing automatic display clock to make the clock more functional.
SUMMERY OF THE UTILITY MODEL
To the not enough among the prior art, the to-be-solved technical problem of the utility model lies in providing an intelligence contactless automatic display clock with human response, the purpose of designing this automatic display clock is the time automatic display on the clock when the human body is out of the night.
In order to solve the technical problem, the utility model discloses a following scheme realizes: the utility model discloses a human body induction circuit, by pyroelectric infrared sensor and infrared processing IC U8 constitution, pyroelectric infrared sensor can detect human body activity to with the signal that detects give infrared processing IC U8 handles, infrared processing IC U8 is inside to have amplifier circuit, and it amplifies human body signal and output high level through the amplifier circuit of inside;
the light sensing circuit is connected with an ambient light detection sensor, the ambient light detection sensor detects the light and dark change of the environment, converts an optical signal into an electric signal and transmits the electric signal to the MCU processor;
the infrared detection circuit is provided with an infrared transmitting tube and an infrared receiving tube, the MCU processor is a compiling processor which can compile a designated program to enable the infrared transmitting tube to transmit a designated signal, and the infrared receiving tube receives the infrared transmitting tube signal.
Further, the MCU processor includes a first chip U6, a crystal oscillator Y1 is connected between an IOB0-1 pin and an IOB1-2 pin of the first chip U6, an IOB0-1 pin and an IOB1-2 pin of the first chip U6 are respectively connected with capacitors, the other ends of the two capacitors are connected with each other and grounded, an IOA5-23 pin of the MCU processor is connected with a resistor R12, the other end of the resistor R12 is connected with a switch P1, two capacitors are further connected between a ground GND-31 pin of the MCU processor and a VDD-26 pin of the MCU processor, and a capacitor C16 is further connected between a ground GND-31 pin of the MCU processor and an IOCO-32 pin of the MCU processor.
Furthermore, the MCU processor is also connected with a burning interface.
Further, the circuit board is further provided with a lithium battery management circuit, the lithium battery management circuit is controlled by a charging management IC U1, the charging management IC U1 has a six PIN, a PIN 1 of the charging management IC U1 is connected with a resistor R2, the other end of the resistor R2 is connected with an LED21, the other end of the LED21 is respectively connected with an anode of a diode D1, a capacitor C1, a resistor R1 and a VDD PIN of a USB1, a cathode of the diode D1 is connected with a cathode of a diode D2 and a bat circuit, the other end of the capacitor C1 is connected with a GDN PIN of a USB1 and grounded, the other end of the resistor R1 is connected with a VCC PIN of the charging management IC U1 and a capacitor C5, the other end of the capacitor C5 is grounded, a PIN 2 of the charging management IC U1 is grounded, a PIN 3 of the charging management IC U1 is connected with a positive PIN of a capacitor C6, a positive electrode of a diode D2, a resistor R4 and a positive electrode of a lithium battery, and the other end of the capacitor C6 is grounded, a resistor R3 is connected between pins 5 and 6 of the charging management IC U1, and the pin 5 of the charging management IC U1 is grounded;
the other end of the resistor R4 is connected with a VCC pin of a second chip U2 and a capacitor C7, the other end of the capacitor C7 is connected with a VSS pin of the second chip U2, a cathode of a lithium battery, a resistor R39 and an S1 pin of a third chip U3, an OD pin of the second chip U2 and a G1 pin of the second chip are connected with each other, an OC pin of the second chip U2 and a G2 pin of the third chip U3 are connected with each other, a CS pin of the second chip U2 is connected with the resistor R5, the other end of the resistor R5 is connected with an S2 pin of the third chip U3 and the other end of the resistor R39, the second chip S2 is grounded, and the two D pins of the second chip are connected with each other.
Further, the infrared processing IC U8 has an 8PIN, and the circuit structure of each PIN is:
the CDS pin is respectively connected with a resistor R63 and a resistor R62, the other end of the resistor R63 is respectively connected with a resistor R64, a resistor R66, a VDD pin connected with 3.3V voltage and an interface U7, a VDD pin of the infrared processing IC U8 and a capacitor C17, the other end of the resistor R62 and the other end of the capacitor C17 are connected and connected with a GND pin of the infrared processing IC U8,
the GND pin is grounded;
the pin of the PIRIN is respectively connected with a capacitor C16 and a resistor R61, the other end of the capacitor C16 is connected with an OUT pin of the capacitor C20, the resistor R60 and an interface U7, the other ends of the capacitor C20 and the resistor R60 are connected with each other and grounded, the other end of the resistor R61 is grounded, and the GND end of the interface U7 is connected with the ground end of the resistor R60;
the REL pin is connected to a B-CK pin of the MCU processor;
the TIME pin is respectively connected with the other ends of a capacitor C19, a resistor R65 and a resistor R64, and the other ends of the capacitor C19 and the resistor R65 are mutually connected and grounded;
the other end of the resistor R66 and the resistor R67 are connected to the SENSE pin, and the other end of the resistor R67 is grounded.
Further, the circuit board is further provided with a low voltage detection circuit, the low voltage detection circuit comprises a resistor R6, a resistor R7, a resistor R8 and a resistor R9, the resistor R6 is connected with the resistor R7, a circuit node between the resistor R6 and the resistor R7 is connected to a B CK-20 pin of the MCU processor, the other end of the resistor R6 is connected to the BAT circuit, the resistor R8 is connected with the resistor R9, a circuit node between the resistor R8 and the resistor R9 is connected to a 5V-CK-21 pin of the MCU processor, the other end of the resistor R8 is connected to +5V voltage, and the other end of the resistor R7 and the other end of the resistor R9 are connected to each other and grounded.
Furthermore, the circuit board is further provided with an LDO power supply circuit, the LDO power supply circuit is provided with a voltage stabilizing chip U4, the VI end of the voltage stabilizing chip U4 is connected with a capacitor C8 and a BATV circuit, the VO end of the voltage stabilizing chip U4 is connected with a capacitor C9 and outputs 3.3V voltage, and the GND end of the voltage stabilizing chip U4 is grounded and is connected with the other end of the capacitor C8 and the other end of the capacitor C9.
Further, still be provided with photosensitive detection circuit on the circuit board, photosensitive detection circuit includes photodiode RG, resistance R37, resistance R38, electric capacity C18, photodiode RG's positive pole connecting resistance R38, the SENSOR foot of MCU treater, photodiode RG is parallelly connected with electric capacity C18, photodiode RG's negative pole end is connected with resistance R37, resistance R38's the other end ground connection, resistance R37's the other end connect to the SEN foot of MCU treater.
Further, still be provided with the drive display circuit on the circuit board, this drive display circuit includes a plurality of parallelly connected drive circuit, drive circuit includes triode, first resistance, second resistance and third resistance, the triode is PNP type triode, and its base and projecting pole are connected with first resistance, and its base is connected with the second resistance, and the other end of second resistance is connected with the third resistance, the other end of third resistance connects to the collecting electrode of triode, and the voltage of the projecting pole of triode is 3.3V, and its collecting electrode connects to CM series foot on the display screen, connect to COM series foot on the MCU treater on the circuit node between second resistance and the third resistance.
Further, the infrared detection circuit comprises a resistor R70, a resistor R73, an NPN type triode Q7, a resistor R71, a resistor R72, a diode D3 and an interface U9, one end of the resistor R70 is connected to the pin C _ IR-18 of the MCU processor, the other end of the resistor is connected to the base electrode of the NPN type triode Q7, a resistor R73 is connected between the grid electrode of the NPN type triode Q7 and the emitting electrode of the NPN type triode Q7, the emitter of the NPN type triode Q7 is grounded, the resistor R71 is connected with the resistor R72 in parallel, the two ends of the diode D3 are respectively connected with the cathode of a diode D3 and the collector of an NPN type triode Q7 after being connected in parallel, the diode D3 is a light emitting diode, the anode pin of the MCU processor is connected with 3.3V voltage and is connected to a VCC-3 pin of an interface U9, a GND-2 pin of the interface U9 is grounded, and an OUT pin of the MCU processor is connected with an IR-19 pin of the MCU processor.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an automatic display clock adopts human response technique, reaches the time display purpose of opening the clock. And because the automatic display clock is started by induction, the electric energy can be saved. When a user starts at night, the automatic display clock senses a moving object through gesture actions and starts immediately. The utility model discloses automatic display clock is when sending light, and the user also can look over the time fast.
Drawings
Fig. 1 is the utility model discloses intelligence contactless automatic display clock circuit schematic diagram.
Fig. 2 is a circuit diagram of the MCU microprocessor of the present invention.
Fig. 3 is a circuit diagram of the lithium battery management circuit of the present invention.
Fig. 4 is an enlarged view of the left portion of fig. 3.
Fig. 5 is an enlarged view of the right portion of fig. 3.
Fig. 6 is a circuit diagram of the human body induction circuit of the present invention.
Fig. 7 is a circuit diagram of the low voltage detection circuit of the present invention.
Fig. 8 is a diagram of the LDO power supply circuit of the present invention.
Fig. 9 is a circuit diagram of the photosensitive detection circuit of the present invention.
Fig. 10 is a driving display circuit diagram of the present invention.
Fig. 11 is a circuit diagram of the LED lamp of the present invention.
Fig. 12 is a circuit diagram of the buzzer of the present invention.
Fig. 13 is the infrared detection circuit diagram of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention. It is obvious that the described embodiments of the invention are only some of the embodiments of the invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
referring to fig. 1, the human body sensing circuit of the present invention comprises a pyroelectric infrared sensor and an infrared processing IC U8, wherein the pyroelectric infrared sensor can detect human body movement and transmit the detected signal to the infrared processing IC U8 for processing, and the infrared processing IC U8 has an amplifying circuit therein, which amplifies the human body signal and outputs a high level through the internal amplifying circuit;
the light sensing circuit is connected with an ambient light detection sensor, the ambient light detection sensor detects the light and dark change of the environment, converts an optical signal into an electric signal and transmits the electric signal to the MCU processor;
the infrared detection circuit is provided with an infrared transmitting tube and an infrared receiving tube, the MCU processor is a compiling processor which can compile a designated program to enable the infrared transmitting tube to transmit a designated signal, and the infrared receiving tube receives the infrared transmitting tube signal.
Example 2:
as shown in fig. 2, fig. 2 is a circuit diagram of the MCU microprocessor of the present invention. The MCU processor comprises a first chip U6, a crystal oscillator Y1 is connected between an IOB0-1 pin and an IOB1-2 pin of the first chip U6, capacitors are further respectively connected to an IOB0-1 pin and an IOB1-2 pin of the first chip U6, the other ends of the two capacitors are connected with each other and grounded, a resistor R12 is connected to an IOA5-23 pin of the MCU processor, a switch P1 is connected to the other end of the resistor R12, two capacitors are further connected between a grounded GND-31 pin of the MCU processor and a VDD-26 pin of the MCU processor, and a capacitor C16 is further connected between a grounded GND-31 pin of the MCU processor and the IOCO-32 pin of the MCU processor.
A preferred technical solution of this embodiment: the singlechip U6 is also connected with a burning interface.
Example 3:
as shown in fig. 3-5, fig. 3 is a circuit diagram of a lithium battery management circuit of the present invention, fig. 4 is a left enlarged view of fig. 3, and fig. 5 is a right enlarged view of fig. 3. The circuit board is also provided with a lithium battery management circuit which is controlled by a charging management IC U1, the charging management IC U1 is provided with a six PIN PIN, a PIN 1 of the charging management IC U1 is connected with a resistor R2, the other end of the resistor R2 is connected with an LED21, the other end of the LED21 is respectively connected with the anode of a diode D1, a capacitor C1, a resistor R1 and the VDD PIN of a USB1, the cathode of the diode D1 is connected with the cathode of a diode D2 and a BATV circuit, the other end of the capacitor C1 is connected with the GDN PIN of a USB1 and grounded, the other end of the resistor R1 is connected with the VCC PIN of the charging management IC U1 and a capacitor C5, the other end of the capacitor C5 is grounded, a PIN 2 of the charging management IC U1 is grounded, a PIN 3 of the charging management IC U1 is connected with the anode of a capacitor C6, the anode of a diode D2, the resistor R4 and the anode of a lithium battery, and the other end of the capacitor C6 is grounded, a resistor R3 is connected between pins 5 and 6 of the charging management IC U1, and the pin 5 of the charging management IC U1 is grounded;
the other end of the resistor R4 is connected with a VCC pin of a second chip U2 and a capacitor C7, the other end of the capacitor C7 is connected with a VSS pin of the second chip U2, a cathode of a lithium battery, a resistor R39 and an S1 pin of a third chip U3, an OD pin of the second chip U2 and a G1 pin of the second chip are connected with each other, an OC pin of the second chip U2 and a G2 pin of the third chip U3 are connected with each other, a CS pin of the second chip U2 is connected with the resistor R5, the other end of the resistor R5 is connected with an S2 pin of the third chip U3 and the other end of the resistor R39, the second chip S2 is grounded, and the two D pins of the second chip are connected with each other.
Example 4:
as shown in fig. 6, fig. 6 is a circuit diagram of the human body induction circuit of the present invention. The infrared processing IC U8 is provided with 8PIN PINs, and the circuit structure of each PIN is as follows:
the CDS pin is respectively connected with a resistor R63 and a resistor R62, the other end of the resistor R63 is respectively connected with a resistor R64, a resistor R66, a VDD pin connected with 3.3V voltage and an interface U7, a VDD pin of the infrared processing IC U8 and a capacitor C17, the other end of the resistor R62 and the other end of the capacitor C17 are connected and connected with a GND pin of the infrared processing IC U8,
the GND pin is grounded;
the pin of the PIRIN is respectively connected with a capacitor C16 and a resistor R61, the other end of the capacitor C16 is connected with an OUT pin of the capacitor C20, the resistor R60 and an interface U7, the other ends of the capacitor C20 and the resistor R60 are connected with each other and grounded, the other end of the resistor R61 is grounded, and the GND end of the interface U7 is connected with the ground end of the resistor R60;
the REL pin is connected to a B-CK pin of the MCU microprocessor;
the TIME pin is respectively connected with the other ends of a capacitor C19, a resistor R65 and a resistor R64, and the other ends of the capacitor C19 and the resistor R65 are mutually connected and grounded;
the other end of the resistor R66 and the resistor R67 are connected to the SENSE pin, and the other end of the resistor R67 is grounded.
Example 5:
as shown in fig. 7, fig. 7 is a low voltage detection circuit diagram of the present invention. The circuit board is further provided with a low-voltage detection circuit, the low-voltage detection circuit comprises a resistor R6, a resistor R7, a resistor R8 and a resistor R9, the resistor R6 and the resistor R7 are connected, circuit nodes between the resistor R6 and the resistor R7 are connected to a B CK-20 pin of the MCU processor, the other end of the resistor R6 is connected to the BAT circuit, the resistor R8 and the resistor R9 are connected, circuit nodes between the resistor R9 and the circuit nodes between the resistor R9 are connected to a 5V-CK-21 pin of the MCU processor, the other end of the resistor R8 is connected to +5V voltage, and the other end of the resistor R7 and the other end of the resistor R9 are connected to and grounded.
Example 6:
as shown in fig. 8, fig. 8 is a diagram of the LDO power supply circuit of the present invention. The circuit board is also provided with an LDO power supply circuit, the LDO power supply circuit is provided with a voltage stabilizing chip U4, the VI end of the voltage stabilizing chip U4 is connected with a capacitor C8 and a BATV circuit, the VO end of the voltage stabilizing chip U4 is connected with a capacitor C9 and outputs 3.3V voltage, and the GND end of the voltage stabilizing chip U4 is grounded and is connected with the other end of the capacitor C8 and the other end of the capacitor C9.
Example 7:
as shown in fig. 9, fig. 9 is a diagram of the photosensitive detection circuit of the present invention. Still be provided with photosensitive detection circuit (be light sensing circuit) on the circuit board, photosensitive detection circuit includes photodiode RG, resistance R37, resistance R38, electric capacity C18, photodiode RG's anodal connecting resistance R38, MCU microprocessor's SENSOR foot, photodiode RG parallel connection has electric capacity C18, photodiode RG's negative pole end is connected with resistance R37, resistance R38's other end ground connection, resistance R37's the other end connects to MCU microprocessor's SEN foot.
Example 8:
as shown in fig. 10, fig. 10 is a driving display circuit diagram of the present invention. The circuit board is also provided with a driving display circuit which comprises a plurality of driving circuits connected in parallel, the driving circuit comprises a triode, a first resistor, a second resistor and a third resistor, the triode is a PNP type triode, the base electrode and the emitting electrode of the triode are connected with the first resistor, the base electrode of the triode is connected with the second resistor, the other end of the second resistor is connected with the third resistor, the other end of the third resistor is connected to the collector electrode of the triode, the voltage of the emitting electrode of the triode is 3.3V, the collector electrode of the triode is connected to a CM series pin on the display screen, and a circuit node between the second resistor and the third resistor is connected to a COM series pin on the MCU microprocessor.
As shown in fig. 11-12, the circuit board is further provided with an LED lamp circuit and a buzzer circuit.
Example 9:
as shown in fig. 13, fig. 13 is a diagram of the infrared detection circuit of the present invention. The infrared detection circuit comprises a resistor R70, a resistor R73, an NPN triode Q7, a resistor R71, a resistor R72, a diode D3 and an interface U9, wherein one end of the resistor R70 is connected to a pin C _ IR-18 of the MCU processor, the other end of the resistor R70 is connected to a base electrode of the NPN triode Q7, a resistor R73 is connected between a grid electrode of the NPN triode Q7 and an emitter electrode of the NPN triode Q7, the emitter electrode of the NPN triode Q7 is grounded, the resistor R71 and the resistor R72 are connected in parallel, two ends of the resistor R3683 are respectively connected with a negative electrode of the diode D3 and a collector electrode of the NPN triode Q7, the diode D3 is a light emitting diode, a pin of the positive electrode of the diode is connected with 3.3V voltage and is connected to a GND of a pin VCC-3 of the interface U9, a pin 2 of the interface U9 is grounded, and a pin of the OUT of the diode is connected with a pin of the IR-19 of the MCU processor.
Example 10:
the human body induction clock is an intelligent non-contact automatic display clock. The lithium battery management circuit is controlled by a charging management IC (integrated circuit), can realize trickle charging and constant voltage/constant current charging and has a charging indication function; the red indicator light is always on when charging, and the green indicator light is always on when charging, and the red indicator light is off; the clock part is electrically realized by a high-performance MCU microprocessor; the light source adopts a high-efficiency light-emitting diode (LED) and has no visual screen flash.
The human body induction circuit consists of a pyroelectric infrared sensor and an infrared processing IC, wherein the pyroelectric infrared sensor can detect human body activity and transmit the human body activity to the infrared processing IC, and the infrared processing IC amplifies a human body signal through an internal amplifying circuit and outputs a high level through a special algorithm.
The light sensing circuit consists of an ambient light detection sensor and an MCU, and the ambient light detection sensor detects the light and dark change of the environment to convert optical signals into electric signals and transmit the electric signals to the MCU.
Example 11:
the types of the chips are as follows:
the model number of the charging management IC U1 is LY 4057; the second chip U2 is a lithium battery protection chip with the model of DW01, the third chip U3 is a lithium battery protection chip with the model of 8205S, the voltage stabilization chip U4 is 662K, the first chip U6 is FT330, and the infrared processing IC U8 is ZG 0928.
The function is realized that the product charges the lithium battery through the battery management circuit and provides power for the post-stage circuit. The clock circuit is realized by the MCU processor through a specific program instruction; under the normal display state of the clock, when the ambient light detection sensor detects that the ambient light brightness is greater than a set threshold value, the clock displays in a high-brightness state; when the ambient light detection sensor detects that the ambient light brightness is less than the set threshold, the clock is displayed in a low-brightness state. Therefore, the clock can automatically adjust the brightness displayed by the clock according to the brightness of the current ambient light. When the clock is in the induction mode, the pyroelectric infrared sensor or the infrared sensor induces the activity of the human body, the clock automatically displays the current time, and the clock is turned off after 15 seconds. In the mode, the clock can automatically sense whether people move nearby the product, so that the clock is lightened, and further the purpose of automatically displaying the clock in a non-contact manner is achieved. When the clock is in the sense mode.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (10)
1. The utility model provides an intelligent contactless automatic display clock with human response, includes the clock body, sets up in circuit board in the clock body and set up in the clock openly and by the display screen of being connected with the circuit board electricity, its characterized in that, be provided with the MCU treater on the circuit board and with the MCU treater electricity is connected:
the human body induction circuit consists of a pyroelectric infrared sensor and an infrared processing IC U8, wherein the pyroelectric infrared sensor can detect human body activity and transmit detected signals to the infrared processing IC U8 for processing, and an amplifying circuit is arranged in the infrared processing IC U8 and amplifies human body signals through the internal amplifying circuit and outputs high level;
the light sensing circuit is connected with an ambient light detection sensor, the ambient light detection sensor detects the light and dark change of the environment, converts an optical signal into an electric signal and transmits the electric signal to the MCU processor;
the infrared detection circuit is provided with an infrared transmitting tube and an infrared receiving tube, the MCU processor is a compiling processor which can compile a designated program to enable the infrared transmitting tube to transmit a designated signal, and the infrared receiving tube receives the infrared transmitting tube signal.
2. The intelligent contactless automatic display clock with human body induction of claim 1, wherein the MCU processor comprises a first chip U6, a crystal oscillator Y1 is connected between the IOB0-1 pin and the IOB1-2 pin of the first chip U6, capacitors are further connected to the IOB0-1 pin and the IOB1-2 pin of the first chip U6, the other ends of the two capacitors are connected to each other and grounded, the IOA5-23 pin of the MCU processor is connected to a resistor R12, the other end of the resistor R12 is connected to a switch P1, two capacitors are further connected between the ground GND-31 pin of the MCU processor and the VDD-26 pin of the MCU processor, and a capacitor C16 is further connected between the ground GND-31 pin of the MCU processor and the IOCO-32 pin of the MCU processor.
3. The intelligent contactless automatic display clock with human body induction according to claim 2, characterized in that the MCU processor is further connected with a burning interface.
4. The intelligent contactless automatic display clock with human body induction function according to claim 1, characterized in that the circuit board is further provided with a lithium battery management circuit, the lithium battery management circuit is controlled by a charging management IC U1, the charging management IC U1 has a six PIN, a PIN 1 thereof is connected with a resistor R2, the other end of the resistor R2 is connected with an LED21, the other end of the LED21 is connected with the anode of a diode D1, a capacitor C1, a resistor R1 and the VDD PIN of a USB1, the cathode of the diode D1 is connected with the cathode of a diode D2 and a bat v circuit, the other end of the capacitor C1 is connected with the GDN PIN of a USB1 and is grounded, the other end of the resistor R1 is connected with the VCC PIN of the charging management IC U1 and the capacitor C5, the other end of the capacitor C5 is grounded, the PIN 2 of the charging management IC U1 is grounded, the PIN 3 of the charging management IC U1 is connected with a capacitor C6, The charging management IC U1 is characterized by comprising an anode of a diode D2, a resistor R4 and an anode of a lithium battery, the other end of the capacitor C6 is grounded, a resistor R3 is connected between pins 5 and 6 of the charging management IC U1, and a pin 5 of the charging management IC U1 is grounded;
the other end of the resistor R4 is connected with a VCC pin of a second chip U2 and a capacitor C7, the other end of the capacitor C7 is connected with a VSS pin of the second chip U2, a cathode of a lithium battery, a resistor R39 and an S1 pin of a third chip U3, an OD pin of the second chip U2 and a G1 pin of the second chip are connected with each other, an OC pin of the second chip U2 and a G2 pin of the third chip U3 are connected with each other, a CS pin of the second chip U2 is connected with the resistor R5, the other end of the resistor R5 is connected with an S2 pin of the third chip U3 and the other end of the resistor R39, the second chip S2 is grounded, and the two D pins of the second chip are connected with each other.
5. The intelligent contactless automatic display clock with human body induction of claim 1, wherein the infrared processing IC U8 has 8PIN PINs, and the circuit structure of each PIN is as follows:
the CDS pin is respectively connected with a resistor R63 and a resistor R62, the other end of the resistor R63 is respectively connected with a resistor R64, a resistor R66, a VDD pin connected with 3.3V voltage and an interface U7, a VDD pin of the infrared processing IC U8 and a capacitor C17, the other end of the resistor R62 and the other end of the capacitor C17 are connected and connected with a GND pin of the infrared processing IC U8,
the GND pin is grounded;
the pin of the PIRIN is respectively connected with a capacitor C16 and a resistor R61, the other end of the capacitor C16 is connected with an OUT pin of the capacitor C20, the resistor R60 and an interface U7, the other ends of the capacitor C20 and the resistor R60 are connected with each other and grounded, the other end of the resistor R61 is grounded, and the GND end of the interface U7 is connected with the ground end of the resistor R60;
the REL pin is connected to a B-CK pin of the MCU processor;
the TIME pin is respectively connected with the other ends of a capacitor C19, a resistor R65 and a resistor R64, and the other ends of the capacitor C19 and the resistor R65 are mutually connected and grounded;
the other end of the resistor R66 and the resistor R67 are connected to the SENSE pin, and the other end of the resistor R67 is grounded.
6. The intelligent contactless automatic display clock with human body induction function of claim 1, wherein the circuit board is further provided with a low voltage detection circuit, the low voltage detection circuit comprises a resistor R6, a resistor R7, a resistor R8 and a resistor R9, the resistor R6 is connected with the resistor R7, a circuit node between the resistor R6 and the resistor R7 is connected to a buck-20 pin of the MCU processor, the other end of the resistor R6 is connected to a BAT circuit, the resistor R8 is connected with the resistor R9, a circuit node between the resistor R8 and the resistor R9 is connected to a 5V-CK-21 pin of the MCU processor, the other end of the resistor R8 is connected to +5V, and the other end of the resistor R7 and the other end of the resistor R9 are connected to each other and grounded.
7. The intelligent contactless automatic display clock with human body induction of claim 1, wherein the circuit board is further provided with a LDO power supply circuit, the LDO power supply circuit has a voltage regulator chip U4, the VI terminal of the voltage regulator chip U4 is connected to a capacitor C8 and a bat V circuit, the VO terminal thereof is connected to a capacitor C9 and outputs a 3.3V voltage, and the GND terminal thereof is grounded and connected to the other terminal of the capacitor C8 and the other terminal of the capacitor C9.
8. The intelligent contactless automatic display clock with human body induction function according to claim 1, characterized in that a photosensitive detection circuit is further disposed on the circuit board, the photosensitive detection circuit includes a photosensitive diode RG, a resistor R37, a resistor R38 and a capacitor C18, the positive electrode of the photosensitive diode RG is connected with the resistor R38 and the SENSOR pin of the MCU processor, the photosensitive diode RG is connected in parallel with the capacitor C18, the negative electrode of the photosensitive diode RG is connected with the resistor R37, the other end of the resistor R38 is grounded, and the other end of the resistor R37 is connected to the SENSOR pin of the MCU processor.
9. The intelligent contactless automatic display clock with human body induction according to claim 1, characterized in that the circuit board is further provided with a driving display circuit, the driving display circuit comprises a plurality of driving circuits connected in parallel, the driving circuit comprises a triode, a first resistor, a second resistor and a third resistor, the triode is a PNP type triode, the base and the emitter of the triode are connected with the first resistor, the base of the triode is connected with the second resistor, the other end of the second resistor is connected with the third resistor, the other end of the third resistor is connected to the collector of the triode, the voltage of the emitter of the triode is 3.3V, the collector of the triode is connected to a CM series pin on the display screen, and a circuit node between the second resistor and the third resistor is connected to a COM series pin on the MCU processor.
10. The intelligent contactless automatic display clock with human body induction of claim 1, wherein the infrared detection circuit comprises a resistor R70, a resistor R73, an NPN transistor Q7, a resistor R71, a resistor R72, a diode D3 and an interface U9, one end of the resistor R70 is connected to the C _ IR-18 pin of the MCU processor, the other end of the resistor R70 is connected to the base of the NPN transistor Q7, a resistor R73 is connected between the grid of the NPN transistor Q7 and the emitter of the NPN transistor Q7, the emitter of the NPN transistor Q7 is grounded, the resistor R71 and the resistor R72 are connected in parallel, the two ends of the resistor R3 and the collector of the NPN transistor Q7 are respectively connected in parallel, the diode D3 is a light emitting diode, the positive pin of the diode is connected to 3.3V voltage and connected to the VCC-3 pin of the interface U9, the GND-2 pin of the interface U9 is grounded, and the OUT pin of the interface U9 is connected to the IR-19 pin of the MCU processor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121324187.2U CN214751365U (en) | 2021-06-15 | 2021-06-15 | Intelligent non-contact automatic display clock with human body induction |
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| CN202121324187.2U CN214751365U (en) | 2021-06-15 | 2021-06-15 | Intelligent non-contact automatic display clock with human body induction |
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