CN217213461U - Intelligent control circuit for adding networking control function to sensor - Google Patents
Intelligent control circuit for adding networking control function to sensor Download PDFInfo
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- CN217213461U CN217213461U CN202220698829.3U CN202220698829U CN217213461U CN 217213461 U CN217213461 U CN 217213461U CN 202220698829 U CN202220698829 U CN 202220698829U CN 217213461 U CN217213461 U CN 217213461U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses an intelligent control circuit for being sensor adds networking control function, include: a sensor detection signal processing circuit for generating a sensor control signal transmittable to the receiving apparatus based on a detection signal output from the sensor; the switching circuit is used for controlling the sensor detection signal processing circuit to work according to a switching signal; the communication and processing circuit is used for receiving a control instruction of the Internet of things and generating an Internet of things instruction signal and the switching signal; and the Internet of things instruction signal processing circuit is used for generating an Internet of things control signal which can be sent to the receiving equipment according to the Internet of things instruction signal. Implement the utility model discloses can add networking control function for the sensor, still keep the original function of sensor to circuit structure is simple, with low costs.
Description
Technical Field
The utility model relates to a sensor control technical field especially relates to an intelligent control circuit for add networking control function for the sensor.
Background
The electronic equipment controlled through the Internet of things is popular among consumers, and has great development potential. Still exist most electronic equipment on the existing market and lack the networking control function, like intelligent lamp, under normal use condition, its sensor is connected with its dimmer circuit, and the sensor sends dimmer circuit through converting environmental status information into the signal of telecommunication, and dimmer circuit realizes the self-adaptation light modulation function according to this signal of telecommunication control light source again, and the user can't adjust luminance according to actual demand. In addition, the sensors with networking control function in the current market have the defects of complex circuit structure, high cost and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to at least one defect that prior art exists, an intelligent control circuit for add networking control function for the sensor is provided.
The utility model provides a technical scheme that its technical problem adopted is: constructing an intelligent control circuit for adding networking control functionality to a sensor, comprising:
the sensor detection signal processing circuit is used for generating a sensor control signal which can be sent to receiving equipment according to the detection signal output by the sensor;
the switch circuit is connected with the sensor detection signal processing circuit and is used for controlling the sensor detection signal processing circuit to work according to a switch signal;
the communication and processing circuit is connected with the switch circuit and used for receiving a control instruction of the Internet of things and generating an Internet of things instruction signal and the switch signal;
and the Internet of things instruction signal processing circuit is connected with the communication and processing circuit and is used for generating an Internet of things control signal which can be sent to the receiving equipment according to the Internet of things instruction signal.
In the intelligent control circuit for adding networking control function to the sensor of the present invention, the switch circuit includes a thirtieth resistor R30, a fourth triode Q4, a thirty-first resistor R31, a twenty-ninth resistor R29, a twenty-eighth resistor R28, a first voltage regulator DZ1, and a third triode Q3;
a first end of the thirtieth resistor R30 is used as a switching signal input end to be connected with the communication and processing circuit, the second end of the thirtieth resistor R30 is connected with the base of the fourth triode Q4, the collector of the fourth triode Q4 is connected with the first end of the thirty-first resistor R31, the emitter of the fourth triode Q4 is grounded, the second end of the thirty-first resistor R31 passes through the first end of the twenty-ninth resistor R29, the first end of the twenty-eighth resistor R28 and the cathode of the first regulator tube DZ1, the collector of the third transistor Q3 is connected as a first power input terminal to the second terminal of the twenty-ninth resistor R29, the second end of the twenty-eighth resistor R28 is connected with the base of the third triode Q3, the anode of the first voltage regulator DZ1 is grounded, and the emitter of the third triode Q3 is used as the output end of the switching circuit and is connected with the sensor detection signal processing circuit.
In the intelligent control circuit for adding networking control function to the sensor of the present invention, the sensor detection signal processing circuit includes a fifth operational amplifier U5, a thirty-second resistor R32, a thirty-third resistor R33 and a fourth diode D4;
an output end of the switch circuit is connected to a power supply end of the fifth operational amplifier U5, a first end of the thirty-second resistor R32 is a detection signal input end, a second end of the thirty-second resistor R32 is connected to a non-inverting input end of the fifth operational amplifier U5, an inverting input end of the fifth operational amplifier U5 is connected to an output end of the fifth operational amplifier U5 and an anode of the fourth diode D4 through the thirty-third resistor R33, and a cathode of the fourth diode D4 is a sensor control signal output end.
In the intelligent control circuit for adding networking control function to the sensor of the present invention, the command signal processing circuit of the internet of things includes a twenty-fifth resistor R25, a twenty-sixth resistor R26, a fourth operational amplifier U4, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-seventh resistor R27, and a third diode D3;
a first end of the twenty-fifth resistor R25 is connected to the communication and processing circuit as an internet-of-things command signal input end, a second end of the twenty-fifth resistor R25 is connected to a first non-inverting input end of the fourth operational amplifier U4 through the twenty-sixth resistor R26, a first inverting input end of the fourth operational amplifier U4 is connected to ground through the twenty-second resistor R22, a first inverting input end of the fourth operational amplifier U4 is further connected to a first output end of the fourth operational amplifier U4 through the twenty-third resistor R23 and the twenty-fourth resistor R24, a first output end of the fourth operational amplifier U4 is further connected to a second non-inverting input end of the fourth operational amplifier U4, a second inverting input end of the fourth operational amplifier U4 is connected to a second output end of the fourth operational amplifier U4 and an anode of the third diode D3 through the twenty-seventh resistor R27, and the cathode of the third diode D3 is an Internet of things control signal output end.
In the intelligent control circuit for adding networking control function to the sensor of the present invention, the command signal processing circuit of the internet of things further includes a fourteenth capacitor C14 and a fifteenth capacitor C15; the second terminal of the twenty-fifth resistor R25 is connected to ground through the fourteenth capacitor C14, and the first non-inverting input terminal of the fourth operational amplifier U4 is connected to ground through the fifteenth capacitor C15.
The intelligent control circuit for adding networking control function to the sensor of the utility model also comprises a first interface circuit for connecting the sensor, a voltage follower circuit and a second interface circuit for connecting the receiving device; the first interface circuit is connected with the sensor detection signal processing circuit, the sensor detection signal processing circuit and the Internet of things control signal processing circuit are connected with the voltage follower circuit, and the voltage follower circuit is connected with the second interface circuit.
In the intelligent control circuit for adding networking control function to the sensor of the present invention, the voltage follower circuit includes a thirty-fourth resistor R34, a sixth operational amplifier U6, and a thirty-fifth resistor R35;
a cathode of the third diode D3 and a cathode of the fourth diode D4 are connected to a first end of the thirty-fourth resistor R34, a second end of the thirty-fourth resistor R34 is connected to a non-inverting input of the sixth operational amplifier U6, and an inverting input of the sixth operational amplifier U6 is connected to an output of the sixth operational amplifier U6 and the second interface circuit through the thirty-fifth resistor R35.
In the intelligent control circuit for adding networking control function to the sensor of the present invention, the intelligent control circuit further comprises a power supply circuit for supplying power to the communication and processing circuit, wherein the power supply circuit comprises a first resistor R1, a first voltage conversion chip IC1, a second resistor R2, a first diode D1, a first inductor L1, a second capacitor C2, a fourth resistor R4 and a third resistor R3;
a first terminal of the first resistor R1 is a first power input terminal connected to a power terminal of the first voltage converting chip IC1, a second terminal of the first resistor R1 is connected to an enable terminal of the first voltage converting chip IC1, the enable terminal of the first voltage conversion chip IC1 is also connected to ground through the second resistor R2, a switching signal output terminal of the first voltage switching chip IC1 is connected to the cathode of the first diode D1 and the first terminal of the first inductor L1, the anode of the first diode D1 is grounded, the second terminal of the first inductor L1 is connected to ground through the second capacitor C2, the second terminal of the first inductor L1 is also connected as a second power supply output terminal to a power supply terminal of the communication and processing circuit, the second terminal of the first inductor L1 is further connected to the feedback terminal of the first voltage converting chip IC1 through the fourth resistor R4, the feedback terminal of the first voltage conversion chip IC1 is also connected to ground through the third resistor R3.
In the intelligent control circuit for adding networking control function to the sensor of the present invention, the power circuit further includes a second voltage regulator DZ2 and a tenth resistor R10; the second end of the first inductor L1 is connected to the cathode of the second regulator tube DZ2, and the anode of the second regulator tube DZ2 is connected to ground through the tenth resistor R10.
The utility model discloses an among the intelligent control circuit for being provided with networking control function for the sensor, still include reset circuit, it includes first button K1 and ninth resistance R9; the second end of the ninth resistor R9 is connected with the reset signal input end of the communication and processing circuit, and the first end of the ninth resistor R9 is connected with the ground through the first key K1.
The utility model discloses following beneficial effect has: the intelligent control circuit can be connected between the sensor and receiving equipment, a user can send a control instruction to the intelligent control circuit through the Internet of things, after receiving the control instruction, the communication and processing circuit generates a switch signal to enable the sensor detection signal processing circuit to be closed and also generates an Internet of things instruction signal, and the Internet of things instruction signal processing circuit converts the Internet of things instruction signal into an Internet of things control signal to enable the Internet of things control signal to act on the receiving equipment; when the control instruction is not received, the sensor detection signal processing circuit can be started through the switch circuit, so that the detection signal output by the sensor acts on the receiving equipment. Implement the utility model discloses can add networking control function for the sensor, still keep the original function of sensor to circuit structure is simple, with low costs.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a structural diagram of a first embodiment of an intelligent control circuit for adding a networking control function to a sensor according to the present invention;
fig. 2 is a schematic diagram of a switch circuit in an intelligent control circuit for adding a networking control function to a sensor according to the present invention;
fig. 3 is a schematic diagram of a sensor detection signal processing circuit in an intelligent control circuit for adding a networking control function to a sensor according to the present invention;
fig. 4 is a schematic diagram of an instruction signal processing circuit of the internet of things in an intelligent control circuit for adding a networking control function to a sensor, provided by the present invention;
fig. 5 is a structural diagram of a second embodiment of the intelligent control circuit for adding networking control function to the sensor provided by the present invention;
fig. 6 is a schematic diagram of a voltage follower circuit in the intelligent control circuit for adding networking control function to the sensor provided by the present invention;
fig. 7 is a schematic diagram of a power supply circuit in an intelligent control circuit for adding a networking control function to a sensor according to the present invention;
fig. 8 is a schematic diagram of a reset circuit in an intelligent control circuit for adding a networking control function to a sensor according to the present invention;
fig. 9 is a schematic diagram of a communication and processing circuit in an intelligent control circuit for adding networking control function to a sensor.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses an intelligent control circuit for add networking control function for the sensor has been constructed, include: the system comprises a sensor detection signal processing circuit, a switch circuit, a communication and processing circuit and an Internet of things instruction signal processing circuit.
And the sensor detection signal processing circuit is used for generating a sensor control signal which can be sent to receiving equipment according to the detection signal output by the sensor.
And the switch circuit is connected with the sensor detection signal processing circuit and is used for controlling the sensor detection signal processing circuit to work according to a switch signal.
And the communication and processing circuit is connected with the switch circuit and is used for receiving a control command of the Internet of things and generating an Internet of things command signal and the switch signal.
And the Internet of things instruction signal processing circuit is connected with the communication and processing circuit and is used for generating an Internet of things control signal which can be sent to the receiving equipment according to the Internet of things instruction signal.
The receiving device is a device that receives the detection signal output by the sensor.
As shown in fig. 2, in some embodiments, the switching circuit includes a thirtieth resistor R30, a fourth transistor Q4, a thirty-first resistor R31, a twenty-ninth resistor R29, a twenty-eighth resistor R28, a first regulator DZ1, and a third transistor Q3.
Specifically, the first end of the thirtieth resistor R30 is used as a switch signal input end to be connected with the communication and processing circuit, the second end of the thirtieth resistor R30 is connected with the base of the fourth triode Q4, the collector of the fourth triode Q4 is connected with the first end of the thirty-first resistor R31, the emitter of the fourth triode Q4 is grounded, the second end of the thirty-first resistor R31 passes through the first end of the twenty-ninth resistor R29, the first end of the twenty-eighth resistor R28 and the cathode of the first voltage regulator tube DZ1, the collector of the third transistor Q3 is connected as a first power input terminal to the second terminal of the twenty-ninth resistor R29, the second end of the twenty-eighth resistor R28 is connected with the base of the third triode Q3, the anode of the first voltage regulator DZ1 is grounded, and the emitter of the third triode Q3 is used as the output end of the switching circuit and is connected with the sensor detection signal processing circuit.
Referring to fig. 2, the operating principle of the switching circuit is as follows: when the switching signal KG is at a low level, the fourth triode Q4 is turned off, the first power supply forms a loop through the twenty-ninth resistor R29 and the first voltage regulator tube DZ1, and under the clamping action of the first voltage regulator tube DZ1, the cathode of the first power supply is at a high level, so that the third triode Q3 is turned on, and the first power supply is input to the sensor detection signal processing circuit to supply power to the sensor detection signal processing circuit.
As shown in fig. 3, in some embodiments, the sensor detection signal processing circuit includes a fifth operational amplifier U5, a thirty-second resistor R32, a thirty-third resistor R33, a sixteenth capacitor C16, and a fourth diode D4;
specifically, an output end of the switch circuit is connected to a power supply end of the fifth operational amplifier U5, a first end of the thirty-second resistor R32 is a detection signal input end, a second end of the thirty-second resistor R32 is connected to a non-inverting input end of the fifth operational amplifier U5 and a first end of the sixteenth capacitor C16, a second end of the sixteenth capacitor C16 is grounded, an inverting input end of the fifth operational amplifier U5 is connected to the output end of the fifth operational amplifier U5 and an anode of the fourth diode D4 through the thirty-third resistor R33, and a cathode of the fourth diode D4 is a sensor control signal output end.
Referring to fig. 3, the sensor detection signal processing circuit operates as follows: the fifth operational amplifier U5 is used for voltage following to buffer and isolate the detection signal, so that when the third transistor Q3 in the switch circuit is turned on, the fifth operational amplifier U5 operates to enable the detection signal to be inputted to the receiving device. The thirty-second resistor R32 and the thirty-third resistor R33 have impedance matching function, so as to ensure that the voltage of the output end of the fifth operational amplifier U5 is close to the voltage of the detection signal as much as possible; the fourth diode D4 plays a role of unidirectional conduction, so as to prevent the output end voltage of the fifth operational amplifier U5 from being influenced by a post-stage circuit connected to the cathode of the fourth diode D4; the sixteenth capacitor C16 is used to filter out the noise of the detection signal.
As shown in fig. 4, in some embodiments, the internet of things instruction signal processing circuit includes a twenty-fifth resistor R25, a fourteenth capacitor C14, a twenty-sixth resistor R26, a fifteenth capacitor C15, a fourth operational amplifier U4, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-seventh resistor R27, and a third diode D3. The fourth operational amplifier U4 includes two groups of operational amplifiers; the IN 1-port, the IN1+ port and the OUT1 port of the fourth operational amplifier U4 form a first group of operational amplifiers of the fourth operational amplifier U4, and the IN 1-port, the IN1+ port and the OUT1 port respectively correspond to a first inverting input end, a first non-inverting input end and a first output end of the fourth operational amplifier U4; the IN 2-port, the IN2+ port, and the OUT2 port of the fourth operational amplifier U4 constitute a second set of operational amplifiers of the fourth operational amplifier U4, and the IN 2-port, the IN2+ port, and the OUT2 port correspond to a second inverting input, a second non-inverting input, and a second output of the fourth operational amplifier U4, respectively.
Specifically, a first end of the twenty-fifth resistor R25 is connected to the communication and processing circuit as an internet-of-things command signal input end, a second end of the twenty-fifth resistor R25 is connected to the first non-inverting input end of the fourth operational amplifier U4 through the twenty-sixth resistor R26, a second end of the twenty-fifth resistor R25 is further connected to ground through the fourteenth capacitor C14, a first non-inverting input end of the fourth operational amplifier U4 is further connected to ground through the fifteenth capacitor C15, a first inverting input end of the fourth operational amplifier U4 is connected to ground through the twenty-second resistor R22, a first inverting input end of the fourth operational amplifier U4 is further connected to a first output end of the fourth operational amplifier U4 through the twenty-third resistor R23 and the twenty-fourth resistor R24, a first output end of the fourth operational amplifier U4 is further connected to a second non-inverting input end of the fourth operational amplifier U4, a second inverting input terminal of the fourth operational amplifier U4 is connected to the second output terminal of the fourth operational amplifier U4 and the anode of the third diode D3 through the twenty-seventh resistor R27, and a cathode of the third diode D3 is an internet-of-things control signal output terminal.
Referring to fig. 4, the operation principle of the command signal processing circuit of the internet of things is as follows: the first group of operational amplifiers of the twenty-second resistor R22, the twenty-third resistor R23, the twenty-fourth resistor R24, the twenty-fifth resistor R25, the twenty-sixth resistor R26 and the fourth operational amplifier U4 form an amplifying circuit for amplifying the instruction signals of the internet of things, and the gain coefficient of the amplifying circuit can be adjusted by adjusting the resistance values of the twenty-second resistor R22, the twenty-third resistor R23 and the twenty-fourth resistor R24; in addition, the twenty-fifth resistor R25 and the twenty-sixth resistor R26 are used for impedance matching of the first inverting input terminal of the fourth operational amplifier U4, so that the output of the amplifying circuit is more accurate; the fourteenth capacitor C14 and the fifteenth capacitor C15 are used for filtering noise of the command signal of the internet of things. The second group of operational amplifiers of the fourth operational amplifier U4, the twenty-seventh resistor R27 and the third diode D3 form a voltage follower circuit, and the voltage follower circuit is used for buffering and isolating output signals of the first group of operational amplifiers; the third diode D3 plays a role of unidirectional conduction, and prevents the voltage at the second output terminal of the fourth operational amplifier U4 from being affected by a subsequent circuit connected to the cathode of the third diode D3.
Referring to fig. 5, in some embodiments, the intelligent control circuit further comprises a first interface circuit for connecting the sensor, a voltage follower circuit, and a second interface circuit for connecting the receiving device; the first interface circuit is connected with the sensor detection signal processing circuit, the sensor detection signal processing circuit and the Internet of things control signal processing circuit are connected with the voltage follower circuit, and the voltage follower circuit is connected with the second interface circuit.
Referring to fig. 6, in some embodiments, the voltage follower circuit includes a thirty-fourth resistor R34, a seventeenth capacitor C17, a sixth operational amplifier U6, a thirty-fifth resistor R35, and an eighteenth capacitor C18.
Specifically, a cathode of the third diode D3 and a cathode of the fourth diode D4 are connected to a first end of the thirty-fourth resistor R34, a second end of the thirty-fourth resistor R34 is connected to a non-inverting input terminal of the sixth operational amplifier U6, the non-inverting input terminal of the sixth operational amplifier U6 is further connected to ground through the seventeenth capacitor C17, an inverting input terminal of the sixth operational amplifier U6 is connected to the output terminal of the sixth operational amplifier U6, the second interface circuit and a second end of the eighteenth capacitor C18 through the thirty-fifth resistor R35, and a first end of the eighteenth capacitor C18 is connected to ground.
Referring to fig. 6, the voltage follower circuit functions as follows: the sensor control signal output by the sensor detection signal processing circuit or the internet of things control signal output by the internet of things instruction signal processing circuit is buffered and isolated, and the driving capability of the control signal can be improved. The seventeenth capacitor C17 and the eighteenth capacitor C18 are filter capacitors.
Referring to fig. 5 and 7, in some embodiments, the intelligent control circuit further includes a power supply circuit for supplying power to the communication and processing circuit, and the power supply circuit includes a first resistor R1, a first voltage conversion chip IC1, a seventh capacitor C7, a second resistor R2, a first diode D1, a first inductor L1, a second capacitor C2, a third capacitor C3, a twenty-first capacitor C21, a fourth resistor R4, and a third resistor R3. The IN port of the first voltage conversion chip IC1 is a power supply terminal of the first voltage conversion chip IC1, the EN port of the first voltage conversion chip IC1 is an enable terminal of the first voltage conversion chip IC1, the SW port of the first voltage conversion chip IC1 is a conversion signal terminal of the first voltage conversion chip IC1, the FB port of the first voltage conversion chip IC1 is a feedback terminal of the first voltage conversion chip IC1, and the GND port of the first voltage conversion chip IC1 is a ground terminal of the first voltage conversion chip IC 1.
Specifically, the first end of the first resistor R1 is a first power input end and is connected to the power end of the first voltage conversion chip IC1, the power end of the first voltage conversion chip IC1 is further connected to ground through the seventh capacitor C7, the second end of the first resistor R1 is connected to the enable end of the first voltage conversion chip IC1, the enable end of the first voltage conversion chip IC1 is further connected to ground through the second resistor R2, the conversion signal output end of the first voltage conversion chip IC1 is connected to the cathode of the first diode D1 and the first end of the first inductor L1, the anode of the first diode D1 is grounded, the second end of the first inductor L1 is connected to ground through the second capacitor C2, the third capacitor C3 and the twenty-first capacitor C21 are connected in parallel to the second capacitor C2, the second end of the first inductor L1 is further connected to the power end of the communication and processing circuit as a second power output end, the second end of the first inductor L1 is further connected to the feedback end of the first voltage conversion chip IC1 through the fourth resistor R4, the feedback end of the first voltage conversion chip IC1 is further connected to ground through the third resistor R3, and the ground end of the first voltage conversion chip IC1 is grounded.
As shown in fig. 7, in some embodiments, the power circuit further includes a second regulator DZ2 and a tenth resistor R10; the second end of the first inductor L1 is connected to the cathode of the second regulator tube DZ2, and the anode of the second regulator tube DZ2 is connected to ground through the tenth resistor R10.
Referring to fig. 7, the operating principle of the power supply circuit is as follows: when the first voltage conversion chip IC1 works normally, the switch signal is output through the SW port to charge and discharge the first inductor L1, and the output voltage of the first power supply is converted to obtain the second power supply. In addition, the first resistor R1 is a current-limiting resistor for preventing the first voltage conversion chip IC1 from being damaged by overcurrent at the enable terminal; the second resistor R2 and the first resistor R1 form a voltage division loop, and divide the output voltage of the first power supply to ensure that the enabling end of the first voltage conversion chip IC1 is kept within the working voltage range, so that the first voltage conversion chip IC1 is prevented from being damaged due to overvoltage of the enabling end; the second capacitor C2, the third capacitor C3 and the twenty-first capacitor C21 form a filter circuit, so that the output voltage of the converted second power supply is smooth and stable; the third resistor R3 and the fourth resistor R4 form a feedback loop, and the output voltage of the second power supply can be adjusted by adjusting the resistance ratio of the feedback loop; the second voltage regulator tube DZ2 and the tenth resistor R10 form a protection loop for preventing the communication and processing circuit from being damaged due to the higher voltage of the second power supply, and the voltage value of the upper bias of the second power supply can be adjusted by adjusting the resistance value of the tenth resistor R10.
Referring to fig. 5 and 8, in some embodiments, the intelligent control circuit further comprises a reset circuit including a first key K1 and a ninth resistor R9. Specifically, a second terminal of the ninth resistor R9 is connected to a reset signal input terminal of the communication and processing circuit, and a first terminal of the ninth resistor R9 is connected to ground through the first key K1. The working principle of the reset circuit is as follows: when the communication and processing circuit normally works, the reset signal input end defaults to high level, and when a user presses the first key K1, the reset signal input end of the communication and processing circuit is equivalently set to be low, so that the communication and processing circuit detects the reset signal, and further the reset function is realized.
As shown in fig. 9, in some embodiments, the communication and processing circuitry includes a master control chip U2; the main control chip U2 may be, but is not limited to, a bluetooth communication chip; the TL _ VDD port of the main control chip U2 is a power source end of the communication and processing circuit, the TL _ D2 port of the main control chip U2 is a reset signal input end of the communication and processing circuit, the TL _ C4 port of the main control chip U2 is an internet of things instruction signal output end of the communication and processing circuit, and the TL _ B4 port of the main control chip U2 is a switch signal output end of the communication and processing circuit.
It can be understood that the intelligent control circuit can be connected between the sensor and the receiving device, a user can send a control instruction to the intelligent control circuit through the internet of things, after the communication and processing circuit receives the control instruction, a switch signal is generated to close the sensor detection signal processing circuit, and an internet of things instruction signal is also generated, the internet of things instruction signal processing circuit converts the internet of things instruction signal into an internet of things control signal, so that the internet of things control signal acts on the receiving device, and if the receiving device is a dimming circuit of the intelligent lamp, a dimming function can be realized through the internet of things control signal; when the control instruction is not received, the sensor detection signal processing circuit can be started through the switch circuit, so that the detection signal output by the sensor acts on the receiving equipment. Further, implement the utility model discloses can add networking control function for the sensor, still keep the original function of sensor to circuit structure is simple, with low costs.
It should be understood that the above examples only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. An intelligent control circuit for adding networking control functions to a sensor, comprising:
the sensor detection signal processing circuit is used for generating a sensor control signal which can be sent to receiving equipment according to the detection signal output by the sensor;
the switch circuit is connected with the sensor detection signal processing circuit and is used for controlling the sensor detection signal processing circuit to work according to a switch signal;
the communication and processing circuit is connected with the switch circuit and used for receiving a control instruction of the Internet of things and generating an Internet of things instruction signal and the switch signal;
and the Internet of things instruction signal processing circuit is connected with the communication and processing circuit and is used for generating an Internet of things control signal which can be sent to the receiving equipment according to the Internet of things instruction signal.
2. A smart control circuit for adding networking control functions to a sensor as claimed in claim 1, wherein the switching circuit comprises a thirtieth resistor R30, a fourth transistor Q4, a thirty-first resistor R31, a twenty-ninth resistor R29, a twenty-eighth resistor R28, a first zener diode DZ1, and a third transistor Q3;
a first end of the thirtieth resistor R30 is used as a switching signal input end to be connected with the communication and processing circuit, the second end of the thirtieth resistor R30 is connected with the base of the fourth triode Q4, the collector of the fourth triode Q4 is connected with the first end of the thirty-first resistor R31, the emitter of the fourth triode Q4 is grounded, the second end of the thirty-first resistor R31 passes through the first end of the twenty-ninth resistor R29, the first end of the twenty-eighth resistor R28 and the cathode of the first voltage regulator tube DZ1, the collector of the third transistor Q3 is connected as a first power input terminal to the second terminal of the twenty-ninth resistor R29, the second end of the twenty-eighth resistor R28 is connected with the base of the third triode Q3, the anode of the first voltage regulator DZ1 is grounded, and the emitter of the third triode Q3 is used as the output end of the switching circuit and is connected with the sensor detection signal processing circuit.
3. The intelligent control circuit for adding networking control function to the sensor according to claim 2, wherein the sensor detection signal processing circuit comprises a fifth operational amplifier U5, a thirty-second resistor R32, a thirty-third resistor R33 and a fourth diode D4;
an output end of the switch circuit is connected to a power supply end of the fifth operational amplifier U5, a first end of the thirty-second resistor R32 is a detection signal input end, a second end of the thirty-second resistor R32 is connected to a non-inverting input end of the fifth operational amplifier U5, an inverting input end of the fifth operational amplifier U5 is connected to an output end of the fifth operational amplifier U5 and an anode of the fourth diode D4 through the thirty-third resistor R33, and a cathode of the fourth diode D4 is a sensor control signal output end.
4. The intelligent control circuit for adding networking control functions to the sensor according to claim 3, wherein the internet of things command signal processing circuit comprises a twenty-fifth resistor R25, a twenty-sixth resistor R26, a fourth operational amplifier U4, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-seventh resistor R27 and a third diode D3;
a first end of the twenty-fifth resistor R25 is connected to the communication and processing circuit as an internet-of-things command signal input end, a second end of the twenty-fifth resistor R25 is connected to a first non-inverting input end of the fourth operational amplifier U4 through the twenty-sixth resistor R26, a first inverting input end of the fourth operational amplifier U4 is connected to ground through the twenty-second resistor R22, a first inverting input end of the fourth operational amplifier U4 is further connected to a first output end of the fourth operational amplifier U4 through the twenty-third resistor R23 and the twenty-fourth resistor R24, a first output end of the fourth operational amplifier U4 is further connected to a second non-inverting input end of the fourth operational amplifier U4, a second inverting input end of the fourth operational amplifier U4 is connected to a second output end of the fourth operational amplifier U4 and an anode of the third diode D3 through the twenty-seventh resistor R27, and the cathode of the third diode D3 is an Internet of things control signal output end.
5. The intelligent control circuit for adding networking control functions to a sensor according to claim 4, wherein the internet of things command signal processing circuit further comprises a fourteenth capacitor C14 and a fifteenth capacitor C15; the second terminal of the twenty-fifth resistor R25 is connected to ground through the fourteenth capacitor C14, and the first non-inverting input terminal of the fourth operational amplifier U4 is connected to ground through the fifteenth capacitor C15.
6. A smart control circuit for adding networking control functions to a sensor as claimed in claim 4, further comprising a first interface circuit for connecting the sensor, a voltage follower circuit and a second interface circuit for connecting the receiving device; the first interface circuit is connected with the sensor detection signal processing circuit, the sensor detection signal processing circuit and the Internet of things control signal processing circuit are connected with the voltage follower circuit, and the voltage follower circuit is connected with the second interface circuit.
7. The intelligent control circuit for adding networking control functions to a sensor of claim 6, wherein the voltage follower circuit comprises a thirty-fourth resistor R34, a sixth operational amplifier U6, and a thirty-fifth resistor R35;
a cathode of the third diode D3 and a cathode of the fourth diode D4 are connected to a first end of the thirty-fourth resistor R34, a second end of the thirty-fourth resistor R34 is connected to a non-inverting input of the sixth operational amplifier U6, and an inverting input of the sixth operational amplifier U6 is connected to an output of the sixth operational amplifier U6 and the second interface circuit through the thirty-fifth resistor R35.
8. The intelligent control circuit for adding networking control functions to the sensor according to claim 2, further comprising a power supply circuit for supplying power to the communication and processing circuit, wherein the power supply circuit comprises a first resistor R1, a first voltage conversion chip IC1, a second resistor R2, a first diode D1, a first inductor L1, a second capacitor C2, a fourth resistor R4 and a third resistor R3;
a first terminal of the first resistor R1 is a first power input terminal connected to a power terminal of the first voltage converting chip IC1, a second terminal of the first resistor R1 is connected to an enable terminal of the first voltage converting chip IC1, the enable terminal of the first voltage conversion chip IC1 is also connected to ground through the second resistor R2, a switching signal output terminal of the first voltage switching chip IC1 is connected to the cathode of the first diode D1 and the first terminal of the first inductor L1, the anode of the first diode D1 is grounded, the second terminal of the first inductor L1 is connected to ground through the second capacitor C2, the second terminal of the first inductor L1 is also connected as a second power supply output terminal to a power supply terminal of the communication and processing circuit, the second terminal of the first inductor L1 is further connected to the feedback terminal of the first voltage converting chip IC1 through the fourth resistor R4, the feedback terminal of the first voltage conversion chip IC1 is also connected to ground through the third resistor R3.
9. A smart control circuit for adding networking control functions to a sensor as recited in claim 8, wherein the power supply circuit further comprises a second voltage regulator DZ2 and a tenth resistor R10; the second end of the first inductor L1 is connected to the cathode of the second regulator tube DZ2, and the anode of the second regulator tube DZ2 is connected to ground through the tenth resistor R10.
10. The intelligent control circuit for adding networking control function to the sensor according to any one of claims 1-9, further comprising a reset circuit comprising a first key K1 and a ninth resistor R9; the second end of the ninth resistor R9 is connected with the reset signal input end of the communication and processing circuit, and the first end of the ninth resistor R9 is connected with the ground through the first key K1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220698829.3U CN217213461U (en) | 2022-03-29 | 2022-03-29 | Intelligent control circuit for adding networking control function to sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220698829.3U CN217213461U (en) | 2022-03-29 | 2022-03-29 | Intelligent control circuit for adding networking control function to sensor |
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| Publication Number | Publication Date |
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| CN217213461U true CN217213461U (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220698829.3U Active CN217213461U (en) | 2022-03-29 | 2022-03-29 | Intelligent control circuit for adding networking control function to sensor |
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| Country | Link |
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| CN (1) | CN217213461U (en) |
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