Detection circuit of multifunctional sensor
By designing detection circuits of multifunction sensors, including power supply modules, multifunction sensor modules, detection modules, status judgment modules, electrical energy control modules and lighting adjustment modules, the problem of insufficient detection accuracy and automatic adjustment capabilities in the prior art is solved, and lighting control with higher intelligence and flexibility is achieved.
Patent Information
- Application Number
- CN202421607971.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The detection circuit of existing multifunction sensors cannot adjust the light detection accuracy and sound detection accuracy, and cannot automatically adjust the lighting brightness according to the light level, and has low intelligence.
A detection circuit of a multifunction sensor is designed, including a power supply module, a multifunction sensor module, a first detection module, a second detection module, a state judgment module, an electrical energy control module and a lighting adjustment module. Through the coordinated work of these modules, the setting and adjustment of the lighting threshold and volume threshold are realized, and the lighting brightness is automatically adjusted according to the lighting signal.
The intelligence of the detection circuit is improved, and the illumination brightness can be automatically adjusted according to the lighting and sound signals, which enhances the detection accuracy and flexibility of control methods.
Smart Images
Figure CN222776346U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of multifunctional sensors, in particular to a detection circuit of a multifunctional sensor. Background Art
[0002] A multifunctional sensor is a device that can measure two or more physical or chemical quantities at the same time. It can convert these different measured quantities into signals that can be received and processed. Multifunctional sensors are equipped with many types of sensors, including sound sensors, light sensors, temperature sensors, etc. Among them, multifunctional sensors with sound sensor and light sensor functions are generally used in the sound and light control of lighting lamps. By detecting light intensity and sound, automatic lighting control of lighting lamps is achieved. However, due to the low intelligence of the circuit, the light detection accuracy and sound detection accuracy cannot be adjusted, and the lighting brightness cannot be automatically adjusted according to the light level. Therefore, there is room for improvement. Utility Model Content
[0003] The embodiments of the present invention provide a detection circuit for a multifunctional sensor to solve the problems raised in the above background technology.
[0004] To achieve the above objectives, the present invention provides the following technical solutions:
[0005] The detection circuit of the multifunctional sensor includes: a power supply module, a multifunctional sensor module, a first detection module, a second detection module, a state judgment module, a power control module and a lighting adjustment module;
[0006] The power module is used to receive AC power and perform voltage reduction, rectification, filtering and voltage stabilization on the AC power;
[0007] a multifunctional sensor module, connected to the power module, configured to receive the electrical energy output by the power module and perform light detection and sound detection, and to output a first light signal and a first sound signal;
[0008] a first detection module, connected to the multifunctional sensor module, configured to set and adjust a light threshold and output a first control signal when a first light signal is less than the light threshold;
[0009] a second detection module, connected to the multifunctional sensor module, configured to set and adjust a volume threshold and output a second control signal when the first sound signal exceeds the volume threshold;
[0010] a state judgment module, connected to the first detection module and the second detection module, and configured to output a third control signal when receiving the first control signal and the second control signal at the same time;
[0011] an electric energy control module, connected to the state judgment module, the lighting adjustment module and the power supply module, and configured to receive a third control signal and transmit the electric energy output by the power supply module to the lighting adjustment module;
[0012] The lighting adjustment module is connected to the multi-function sensor module and the power supply module, and is used to receive the electric energy transmitted by the power control module and the AC power input by the power supply module, and is used to receive the first light signal and adjust the lighting brightness of the lighting device according to the voltage of the first light signal.
[0013] As a further solution of the present invention: the power supply module includes a power supply interface, a first transformer, a first rectifier, a first capacitor and a first diode; the multifunctional sensor module includes a first sensor;
[0014] Preferably, the first end and the second end of the power interface are respectively connected to the first end and the second end of the primary side of the first transformer, the first end and the second end of the secondary side of the first transformer are respectively connected to the first input end and the second input end of the first rectifier, the first output end of the first rectifier is connected to one end of the first capacitor, the cathode of the first diode and the VCC end of the first sensor, the second output end of the first rectifier, the other end of the first capacitor, the anode of the first diode and the GND end of the first sensor are all grounded, and the OUT1 end and OUT2 end of the first sensor are respectively connected to the first detection module and the second detection module.
[0015] As a further solution of the present invention: the first detection module includes a first resistor, a first potentiometer, a second resistor and a first comparator;
[0016] Preferably, one end of the first resistor is connected to the cathode of the first diode, the other end of the first resistor is connected to one end of the first potentiometer, the slider end of the first potentiometer is connected to the non-inverting end of the first comparator, the inverting end of the first comparator is connected to the OUT1 end of the first sensor, the other end of the first potentiometer is grounded through the second resistor, and the output end of the first comparator is connected to the status judgment module.
[0017] As a further solution of the present invention: the second detection module includes a third resistor, a second potentiometer, a fourth resistor and a second comparator;
[0018] Preferably, one end of the third resistor is connected to the cathode of the first diode, the other end of the third resistor is connected to one end of the second potentiometer, the other end of the second potentiometer is grounded through a fourth resistor, the slider end of the second potentiometer is connected to the inverting end of the second comparator, the non-inverting end of the second comparator is connected to the OUT2 end of the first sensor, and the output end of the second comparator is connected to the status judgment module.
[0019] As a further solution of the present utility model: the state determination module includes a first logic chip;
[0020] Preferably, the A end of the first logic chip is connected to the output end of the first comparator, the B end of the first logic chip is connected to the output end of the second comparator, and the F end of the first logic chip is connected to the power control module.
[0021] As a further solution of the present invention: the lighting adjustment module includes a second diode, a fifth resistor, a sixth resistor, a first switch tube, a second capacitor, a first trigger diode, a first thyristor and a lighting device;
[0022] Preferably, the emitter of the first switching tube is connected to the power control module, the base of the first switching tube is connected to the cathode of the second diode and grounded through the fifth resistor, the anode of the second diode is connected to the OUT1 end of the first sensor, the collector of the first switching tube is connected to one end of the second capacitor and one end of the first trigger diode through the sixth resistor, the other end of the second capacitor is grounded, the other end of the first trigger diode is connected to the control end of the first thyristor, one end of the first thyristor is connected to one end of the lighting device, and the other end of the first thyristor and the other end of the lighting device are respectively connected to the second end and the first end of the power interface.
[0023] As a further solution of the present invention: the power control module includes a seventh resistor, a first power tube and a second switch tube;
[0024] Preferably, the gate of the first power tube is connected to the collector of the second switching tube and is connected to the source of the first power tube and the first output end of the first rectifier through the seventh resistor, the drain of the first power tube is connected to the emitter of the first switching tube, the emitter of the second switching tube is grounded, and the base of the second switching tube is connected to the F end of the first logic chip.
[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the detection circuit of the multifunctional sensor of the present invention performs light detection and sound detection by the multifunctional sensor module, the first detection module sets the light threshold and adjusts the light threshold so as to adjust the critical value required for lighting, the second detection module sets the volume threshold and adjusts the volume threshold to adjust the required sound volume, and when the sound volume and light level reach the set level, the state judgment module controls the power control module to perform power transmission, so that the lighting adjustment module starts working and the lighting brightness is automatically adjusted by the first light signal provided by the multifunctional sensor module, thereby improving the intelligence of the circuit and making the control means simple and easy. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0027] Figure 1 This is a schematic block diagram of the principle of the detection circuit of the multifunctional sensor provided in this example of the utility model.
[0028] Figure 2 This is a circuit diagram of the detection circuit of the multifunctional sensor provided in an example of the present utility model.
[0029] Figure 3 This is a connection circuit diagram of the power control module provided by an example of the present utility model. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0031] In one embodiment, see Figure 1 , the detection circuit of the multifunctional sensor includes: a power supply module 1, a multifunctional sensor module 2, a first detection module 3, a second detection module 4, a state judgment module 5, a power control module 6 and a lighting adjustment module 7;
[0032] Specifically, the power module 1 is used to receive AC power and perform voltage reduction, rectification, filtering and voltage stabilization on the AC power;
[0033] a multifunctional sensor module 2, connected to the power module 1, configured to receive the electrical energy output by the power module 1 and perform light detection and sound detection, and to output a first light signal and a first sound signal;
[0034] A first detection module 3, connected to the multifunctional sensor module 2, for setting and adjusting a light threshold and outputting a first control signal when a first light signal is less than the light threshold;
[0035] a second detection module 4, connected to the multifunctional sensor module 2, for setting and adjusting a volume threshold and outputting a second control signal when the first sound signal exceeds the volume threshold;
[0036] a state judgment module 5, connected to the first detection module 3 and the second detection module 4, and configured to output a third control signal when receiving the first control signal and the second control signal at the same time;
[0037] The power control module 6 is connected to the state judgment module 5, the lighting adjustment module 7 and the power module 1, and is used to receive the third control signal and transmit the power output by the power module 1 to the lighting adjustment module 7;
[0038] The lighting adjustment module 7 is connected to the multi-function sensor module 2 and the power module 1, and is used to receive the electric energy transmitted by the power control module 6 and the AC power connected to the power module 1, and is used to receive the first light signal and adjust the lighting brightness of the lighting device according to the voltage of the first light signal.
[0039] In a specific embodiment, the power supply module 1 can adopt a power supply circuit composed of a power interface, a transformer, a rectifier, etc., which can be connected to AC power and perform voltage reduction, rectification, filtering and voltage stabilization on the AC power; the multifunctional sensor module 2 can adopt a multifunctional sensor to perform light detection and sound detection; the first detection module 3 can adopt a first detection circuit composed of a resistor, a potentiometer and a comparator, which can set the light threshold and adjust the light threshold, and compare the light threshold with the voltage of the signal output by the multifunctional sensor module 2; the second detection module 4 can adopt a second detection circuit composed of a resistor, a potentiometer and a comparator. The detection circuit can set the volume threshold and adjust the volume threshold, and compare the volume threshold with the voltage of the signal output by the multi-function sensor module 2; the above-mentioned state judgment module 5 can adopt a state judgment circuit composed of a logic chip, which can judge the state of the output signal of the first detection module 3 and the second detection module 4; the above-mentioned power control module 6 can adopt a power control circuit composed of a power tube, a resistor and a transistor to control the transmission of power; the above-mentioned lighting adjustment module 7 can adopt a lighting adjustment circuit composed of a transistor, a thyristor, a lighting device, etc. to perform lighting work and adjust the lighting brightness according to the signal detected by the multi-function sensor module 2.
[0040] In another embodiment, see Figure 1 、 Figure 2 and Figure 3 The power module 1 includes a power interface, a first transformer B1, a first rectifier T1, a first capacitor C1 and a first diode D1; the multifunctional sensor module 2 includes a first sensor IC1;
[0041] Specifically, the first end and the second end of the power interface are respectively connected to the first end and the second end of the primary side of the first transformer B1, the first end and the second end of the secondary side of the first transformer B1 are respectively connected to the first input end and the second input end of the first rectifier T1, the first output end of the first rectifier T1 is connected to one end of the first capacitor C1, the cathode of the first diode D1 and the VCC end of the first sensor IC1, the second output end of the first rectifier T1, the other end of the first capacitor C1, the anode of the first diode D1 and the GND end of the first sensor IC1 are all grounded, and the OUT1 end and OUT2 end of the first sensor IC1 are respectively connected to the first detection module 3 and the second detection module 4.
[0042] In a specific embodiment, the first sensor IC1 may be a multifunctional sensor with light detection function and sound detection function.
[0043] Furthermore, the first detection module 3 includes a first resistor R1, a first potentiometer RP1, a second resistor R2 and a first comparator A1;
[0044] Specifically, one end of the first resistor R1 is connected to the cathode of the first diode D1, the other end of the first resistor R1 is connected to one end of the first potentiometer RP1, the slider end of the first potentiometer RP1 is connected to the non-inverting end of the first comparator A1, the inverting end of the first comparator A1 is connected to the OUT1 end of the first sensor IC1, the other end of the first potentiometer RP1 is grounded through the second resistor R2, and the output end of the first comparator A1 is connected to the status judgment module 5.
[0045] In a specific embodiment, the first resistor R1, the first potentiometer RP1 and the second resistor R2 set the light threshold, and the voltage value of the light threshold is adjusted by adjusting the resistance value of the first potentiometer RP1; the first comparator A1 can be an LM358 comparator.
[0046] Furthermore, the second detection module 4 includes a third resistor R3, a second potentiometer RP2, a fourth resistor R4 and a second comparator A2;
[0047] Specifically, one end of the third resistor R3 is connected to the cathode of the first diode D1, the other end of the third resistor R3 is connected to one end of the second potentiometer RP2, the other end of the second potentiometer RP2 is grounded through the fourth resistor R4, the slider end of the second potentiometer RP2 is connected to the inverting end of the second comparator A2, the non-inverting end of the second comparator A2 is connected to the OUT2 end of the first sensor IC1, and the output end of the second comparator A2 is connected to the status judgment module 5.
[0048] In a specific embodiment, the third resistor R3, the second potentiometer RP2 and the fourth resistor R4 set the sound threshold, and the voltage value of the sound threshold is adjusted by adjusting the resistance value of the second potentiometer RP2; the second comparator A2 can be an LM358 comparator.
[0049] Furthermore, the state determination module 5 includes a first logic chip U1;
[0050] Specifically, the A terminal of the first logic chip U1 is connected to the output terminal of the first comparator A1 , the B terminal of the first logic chip U1 is connected to the output terminal of the second comparator A2 , and the F terminal of the first logic chip U1 is connected to the power control module 6 .
[0051] In a specific embodiment, the first logic chip U1 can be an AND gate chip.
[0052] Furthermore, the lighting adjustment module 7 includes a second diode D2, a fifth resistor R5, a sixth resistor R6, a first switch tube VT1, a second capacitor C2, a first trigger diode KS1, a first thyristor SCR1 and a lighting device;
[0053] Specifically, the emitter of the first switching tube VT1 is connected to the power control module 6, the base of the first switching tube VT1 is connected to the cathode of the second diode D2 and is grounded through the fifth resistor R5, the anode of the second diode D2 is connected to the OUT1 end of the first sensor IC1, the collector of the first switching tube VT1 is connected to one end of the second capacitor C2 and one end of the first trigger diode KS1 through the sixth resistor R6, the other end of the second capacitor C2 is grounded, the other end of the first trigger diode KS1 is connected to the control end of the first thyristor SCR1, one end of the first thyristor SCR1 is connected to one end of the lighting device, and the other end of the first thyristor SCR1 and the other end of the lighting device are respectively connected to the second end and the first end of the power interface.
[0054] In a specific embodiment, the first switch tube VT1 can be a PNP transistor; the first trigger diode KS1 can be a bidirectional trigger diode; the first thyristor SCR1 can be a bidirectional thyristor; and the lighting device can be an LED module.
[0055] Furthermore, the power control module 6 includes a seventh resistor R7, a first power tube Q1 and a second switch tube VT2;
[0056] Specifically, the gate of the first power tube Q1 is connected to the collector of the second switching tube VT2 and is connected to the source of the first power tube Q1 and the first output end of the first rectifier T1 through the seventh resistor R7. The drain of the first power tube Q1 is connected to the emitter of the first switching tube VT1, the emitter of the second switching tube VT2 is grounded, and the base of the second switching tube VT2 is connected to the F end of the first logic chip U1.
[0057] In a specific embodiment, the first power tube Q1 can be a P-channel field effect tube; the second switch tube VT2 can be an NPN transistor.
[0058] In the detection circuit of the multifunctional sensor of this embodiment, AC power is connected to the power interface, and the first transformer B1, the first rectifier T1, the first capacitor C1 and the first diode D1 respectively perform step-down, rectification, filtering and voltage stabilization processing, and the first sensor IC1 performs light detection and sound detection and outputs a first light signal and a first sound signal respectively. When the first light signal is lower than the light threshold value set by the first resistor R1, the first potentiometer RP1 and the second resistor R2, the first comparator A1 outputs a high level, and the light threshold value can be adjusted by adjusting the resistance value of the first potentiometer RP1 to change the critical point. When the first sound signal is greater than the light threshold value set by the third resistor R3, the second potentiometer RP2 and the fourth resistor R4, the comparator A1 outputs a high level. When the volume threshold is reached, the second comparator A2 outputs a high level. The volume threshold can be adjusted by adjusting the resistance value of the second potentiometer RP2 to adjust the sound volume required for triggering. When both the first comparator A1 and the second comparator A2 output high levels, the second switch tube VT2 is turned on, and the first power tube Q1 is turned on, so that the emitter of the first switch tube VT1 is energized. At this time, the conduction degree of the first switch tube VT1 is determined by the voltage of the first light signal output from the OUT1 terminal of the first sensor IC1. The smaller the voltage of the first light signal, the larger the conduction angle of the first switch tube VT1, which in turn increases the conduction angle of the first thyristor SCR1, the greater the power input to the lighting device, and the higher the brightness.
[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
[0060] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A detection circuit of a multifunctional sensor, characterized in that: The detection circuit of the multifunctional sensor includes: a power supply module, a multifunctional sensor module, a first detection module, a second detection module, a state judgment module, an electric energy control module and a lighting adjustment module; The power module is used to receive AC power and perform voltage reduction, rectification, filtering and voltage stabilization on the AC power; The multifunctional sensor module is connected to the power module, and is used to receive the electric energy output by the power module and perform light detection and sound detection, and is used to output a first light signal and a first sound signal; The first detection module is connected to the multifunctional sensor module, and is used to set and adjust the light threshold and output a first control signal when the first light signal is less than the light threshold; The second detection module is connected to the multifunctional sensor module, and is used to set and adjust the volume threshold and output a second control signal when the first sound signal is greater than the volume threshold; The state judgment module is connected to the first detection module and the second detection module, and is used to output a third control signal when receiving the first control signal and the second control signal at the same time; The power control module is connected to the state judgment module, the lighting adjustment module and the power module, and is used to receive the third control signal and transmit the power output by the power module to the lighting adjustment module; The lighting adjustment module is connected to the multifunctional sensor module and the power module, and is used to receive the electric energy transmitted by the power control module and the AC electric energy connected to the power module, and is used to receive the first light signal and adjust the lighting brightness of the lighting device according to the voltage of the first light signal.
2. The detection circuit of the multifunctional sensor according to claim 1, characterized in that: The power module includes a power interface, a first transformer, a first rectifier, a first capacitor and a first diode; the multifunctional sensor module includes a first sensor; The first end and the second end of the power interface are respectively connected to the first end and the second end of the primary side of the first transformer, the first end and the second end of the secondary side of the first transformer are respectively connected to the first input end and the second input end of the first rectifier, the first output end of the first rectifier is connected to one end of the first capacitor, the cathode of the first diode and the VCC end of the first sensor, the second output end of the first rectifier, the other end of the first capacitor, the anode of the first diode and the GND end of the first sensor are all grounded, and the OUT1 end and OUT2 end of the first sensor are respectively connected to the first detection module and the second detection module.
3. The detection circuit of the multifunctional sensor according to claim 2, characterized in that: The first detection module includes a first resistor, a first potentiometer, a second resistor and a first comparator; One end of the first resistor is connected to the cathode of the first diode, the other end of the first resistor is connected to one end of the first potentiometer, the slider end of the first potentiometer is connected to the non-inverting end of the first comparator, the inverting end of the first comparator is connected to the OUT1 end of the first sensor, the other end of the first potentiometer is grounded through the second resistor, and the output end of the first comparator is connected to the status judgment module.
4. The detection circuit of the multifunctional sensor according to claim 3, characterized in that: The second detection module includes a third resistor, a second potentiometer, a fourth resistor and a second comparator; One end of the third resistor is connected to the cathode of the first diode, the other end of the third resistor is connected to one end of the second potentiometer, the other end of the second potentiometer is grounded through a fourth resistor, the slider end of the second potentiometer is connected to the inverting end of the second comparator, the non-inverting end of the second comparator is connected to the OUT2 end of the first sensor, and the output end of the second comparator is connected to the state judgment module.
5. The detection circuit of the multifunctional sensor according to claim 4, characterized in that: The state judgment module includes a first logic chip; The A end of the first logic chip is connected to the output end of the first comparator, the B end of the first logic chip is connected to the output end of the second comparator, and the F end of the first logic chip is connected to the power control module.
6. The detection circuit of the multifunctional sensor according to claim 5, characterized in that: The lighting adjustment module includes a second diode, a fifth resistor, a sixth resistor, a first switch tube, a second capacitor, a first trigger diode, a first thyristor and a lighting device; The emitter of the first switch tube is connected to the power control module, the base of the first switch tube is connected to the cathode of the second diode and grounded through the fifth resistor, the anode of the second diode is connected to the OUT1 end of the first sensor, the collector of the first switch tube is connected to one end of the second capacitor and one end of the first trigger diode through the sixth resistor, the other end of the second capacitor is grounded, the other end of the first trigger diode is connected to the control end of the first thyristor, one end of the first thyristor is connected to one end of the lighting device, and the other end of the first thyristor and the other end of the lighting device are respectively connected to the second end and the first end of the power interface.
7. The detection circuit of the multifunctional sensor according to claim 6, characterized in that: The power control module includes a seventh resistor, a first power tube and a second switch tube; The gate of the first power tube is connected to the collector of the second switch tube and is connected to the source of the first power tube and the first output end of the first rectifier through the seventh resistor, the drain of the first power tube is connected to the emitter of the first switch tube, the emitter of the second switch tube is grounded, and the base of the second switch tube is connected to the F end of the first logic chip.