CN216746426U - Illuminance sensor circuit and illuminance sensor - Google Patents
Illuminance sensor circuit and illuminance sensor Download PDFInfo
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- CN216746426U CN216746426U CN202220221290.2U CN202220221290U CN216746426U CN 216746426 U CN216746426 U CN 216746426U CN 202220221290 U CN202220221290 U CN 202220221290U CN 216746426 U CN216746426 U CN 216746426U
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Abstract
The utility model provides an illuminance sensor circuit and an illuminance sensor, wherein the illuminance sensor circuit comprises an illuminance probe, a microcontroller and a power supply circuit, the illuminance probe is connected with the microcontroller through a wiring terminal, the microcontroller is also connected with a bus communication circuit, and the bus communication circuit is networked to a monitoring center through a bus. The utility model collects the illumination through the illumination probe, realizes the accurate detection of the illumination, obtains the accurate detection data, and adopts the illumination probe with high sensitivity to realize the wide-range detection of the illumination and good linearity. In addition, the wireless data transmission circuit is adopted to realize the functions of data return and wireless data transmission, and the data acquired by the illumination probe is uploaded to the monitoring center, so that the monitoring center can know the operation condition of the illumination system and carry out corresponding control, the stable operation of the illumination system is facilitated, and the purpose of energy-saving control is achieved.
Description
Technical Field
The utility model relates to the technical field of electronic circuits, in particular to an illumination sensor circuit and an illumination sensor.
Background
With the pressure of lighting load on the power grid and the continuous improvement of the quality requirements of modern people on the lighting environment, the energy-saving problem of the lighting system is paid more and more attention.
With the implementation of the national vigorous development of green building policies, energy conservation and emission reduction in the building field have become a necessary trend, and illumination is a part with large energy consumption in buildings, so that energy conservation of an illumination system is very necessary.
At present, energy-saving elements are mostly adopted for illumination, but the cost is higher, and the control on the illumination elements in the use process is lacked.
SUMMERY OF THE UTILITY MODEL
The utility model provides an illumination sensor circuit and an illumination sensor, which are used for solving the problem of energy-saving control of illumination in the prior art. The intelligent lighting switch system can effectively realize lighting intelligent switch control and management by detecting and collecting the ambient illumination and combining the upper computer to configure the global scene.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an illuminance sensor circuit, which comprises an illuminance probe, a microcontroller and a power supply circuit, wherein the illuminance probe is connected with the microcontroller through a wiring terminal, the microcontroller is also connected with a bus communication circuit, and the bus communication circuit is networked to a monitoring center through a bus.
Furthermore, the illuminance sensor circuit further comprises a wireless data transmission circuit, the wireless data transmission circuit comprises a wireless conversion module and an indication circuit, and the wireless conversion module is respectively connected with the indication circuit and the microcontroller.
Further, the wireless conversion module comprises a chip U2, the chip U2 is a UART-to-ZigBee wireless chip, a signal input end of the chip U2 is connected with the microcontroller, a DAT pin of the chip U2 is connected with an indicator light DAT through a resistor R11, an RUN pin of the chip U2 is connected with an indicator light RUN through a resistor R10, and a KEY FUN pin of the chip U2 is connected with the switch.
Further, the power supply circuit comprises a voltage reduction circuit and a voltage stabilizing circuit; the voltage reduction circuit converts the 24V voltage into 5V, and the stabilized voltage converts the 5V voltage into stable 3.3V output.
Further, the voltage reduction circuit comprises a voltage reduction chip U5, wherein a pin 1 of the chip U5 is connected with one end of a capacitor C3, and the other end of the capacitor C3 is connected with a pin 6 of a voltage reduction chip U5; the 2 pin of the voltage reduction chip U5 is grounded; the 3 pin is respectively connected with one end of a capacitor C4, one end of a resistor R2 and one end of a resistor R1, the other end of the resistor R1 is grounded, and the other end of a resistor R2 and the other end of a capacitor C4 are both connected with 5V voltage; the 4 pins are respectively connected with one end of the capacitor R3 and one end of the resistor R4, and the other end of the resistor R4 is grounded; the 5 pins of the voltage reduction chip U5 are respectively connected with the other end of the resistor R3, one end of the capacitor C1, one end of the capacitor C2 and the cathode of the diode D1, the other ends of the capacitor C2 and the capacitor C1 are grounded, the anode of the diode D1 is connected with one end of the fuse F1, and the other end of the fuse F1 is connected with the power supply 24V; the 6 pins of the voltage reduction chip U5 are respectively connected with the cathode of the diode D2 and one end of the inductor L1, the anode of the diode D2 is grounded, the other end of the inductor L1 is respectively connected with one end of the capacitor C5, one end of the capacitor C6 and a 5V power supply, and the other ends of the capacitor C5 and the capacitor C6 are grounded.
Further, the voltage stabilizing circuit comprises a voltage stabilizing chip U6, wherein an IN pin of the voltage stabilizing chip U6 is connected with 5V voltage, and an OUT pin is respectively connected with one end of a capacitor C7, one end of a C8, one end of a resistor R14 and 3.3V voltage; the other end of the capacitor C7 and the other end of the capacitor C8 are grounded, and the other end of the resistor R14 is grounded through an indicator light D24.
Furthermore, the bus communication circuit comprises a transceiver U9, wherein a pin 1 of the transceiver U9 is connected with a pin RS485_ RX _ TTL1 of the microprocessor, a pin 4 is connected with a pin RS485_ TX _ TTL1 of the microprocessor, a pin 2 is respectively connected with a pin 3, one end of a resistor R11 and a collector of a triode Q1, the other end of the resistor R11 is connected with a power supply 5V, an emitter of the triode Q1 is grounded GND, a base is connected with one end of the resistor R10, the other end of the resistor R10 is connected with one end of a resistor R9 and a pin RS485_ TX _ TTL1 of the microprocessor, and the other end of the resistor R9 is connected with the power supply 5V; an 8-pin of an RS485 transceiver U9 is connected with one end of a power supply 5V and a capacitor C46, a 7-pin is connected with one end of a resistor R12, one end of a fuse F2, one end of a TVS tube D3 and one end of a TVS tube D4, the other end of the resistor R12 and one end of the capacitor C46 are grounded, the other end of the capacitor C6 is connected with a 5V voltage, the other end of the TVS tube D3 is grounded, and the other end of the fuse F2 is connected with a 485B; the 6-pin of the transceiver U9 is connected with one end of a resistor R13, one end of a fuse F3, one end of a TVS tube D5 and the other end of a TVS tube D4, the other end of the TVS tube D5 is grounded GND, the resistor R13 is connected with a power supply 5V, and the other end of the fuse F3 is connected with 485A.
The utility model provides an illuminance sensor, wherein the sensor is provided with the illuminance sensor circuit.
The effects provided in the contents of the utility model are only the effects of the embodiments, not all the effects of the utility model, and one of the above technical solutions has the following advantages or beneficial effects:
the utility model collects the illumination through the illumination probe, realizes the accurate detection of the illumination, obtains the accurate detection data, and adopts the illumination probe with high sensitivity to realize the wide-range detection of the illumination and good linearity. In addition, the wireless data transmission circuit is adopted to realize the functions of data return and wireless data transmission, and the data acquired by the illumination probe is uploaded to the monitoring center, so that the monitoring center can know the operation condition of the illumination system and carry out corresponding control, the stable operation of the illumination system is facilitated, and the purpose of energy-saving control is achieved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an illumination sensor circuit according to the present invention;
FIG. 2 is a schematic diagram of a circuit configuration of a microprocessor according to the present invention;
FIG. 3 is a schematic diagram of the power supply circuit of the present invention;
FIG. 4 is a schematic diagram of a bus communication circuit according to the present invention;
FIG. 5 is a schematic diagram of a wireless data transmission circuit according to the present invention;
fig. 6 is a schematic wiring diagram of the terminal of the present invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the utility model.
As shown in fig. 1, the illuminance sensor circuit provided by the present invention includes an illuminance probe, a microcontroller, a power circuit, a wireless data transmission circuit, and a bus communication circuit, where the illuminance probe is connected to the microcontroller through a wiring terminal, the microcontroller is further connected to the bus communication circuit and the wireless data transmission circuit, and the bus communication circuit is networked to a monitoring center through a bus. The power supply circuit is used for supplying power to the whole illumination sensor circuit.
The microcontroller comprises a microprocessor MCU of the type STM32F103R8T 6. The bus communication circuit adopts an RS485 serial communication protocol, and can realize balanced transmission and differential reception. And the system can be networked to a monitoring center through a bus, so that the monitoring center can display the working state of the circuit of the illumination sensor in real time and modify the operation parameters. The wireless data transmission circuit comprises a UART-to-ZigBee wireless module DRF1609H and an indicator light circuit; the wireless data transmission circuit can be connected to the monitoring center through a communication cable under a networking operation mode, so that the monitoring center can be connected with each intelligent lighting monitor in real time, and each monitor can be remotely controlled in real time and various alarm information can be collected. The illuminance probe adopts a silicon blue light detector with higher sensitivity to weak light as a sensor, so that the illuminance probe can detect the illuminance more accurately, and the acquired data is more accurate and reliable.
As shown in fig. 2, the microprocessor U of the present invention is provided with a crystal oscillator circuit, the crystal oscillator circuit is connected to a 5-pin and a 6-pin of the microprocessor U, the 5-pin of the microprocessor U is respectively connected to one end of a resistor R7, one end of a crystal oscillator Y1 and one end of a capacitor C9, the 6-pin of the microprocessor U is respectively connected to the other end of a resistor R7, the other end of a crystal oscillator Y1 and one end of a capacitor C10, and the other end of the capacitor C9 and the other end of the capacitor C10 are both grounded to GND. The 7 th pin of the microprocessor U is connected with a reset circuit, the 7 th pin of the microprocessor U is respectively connected with one end of a resistor R8 and one end of a capacitor C12, the other end of a resistor R8 is connected with a power supply 3.3V, and the other end of a capacitor C12 is grounded.
The edge circuit of the microprocessor comprises a power supply filter circuit, the power supply filter circuit is formed by connecting capacitors C13-C24 in parallel, one ends of the capacitors C13-C24 are all connected with a power supply 3.3V, and the other ends of the capacitors C13-C24 are all grounded GND. The terminals 8, 9, 10, 11, 24 and 25 of the microprocessor U are respectively connected with pins 1, 2, 3, 4, 5 and 6 of a dial switch U21, and the other end of the dial switch U21 is grounded.
The values of the capacitors C9 and C10 are 20pF, the values of the capacitors C12-C18 and the capacitors C21-C24 are 100nF, and the values of the capacitors C19 and C20 are 10 uF. The resistance of the resistor R7 is 1M, and the resistance of the resistor R8 is 10K.
As shown in fig. 3, the power supply circuit includes a voltage reduction circuit and a voltage stabilization circuit; the voltage reduction circuit converts the 24V voltage into 5V, and the stabilized voltage converts the 5V voltage into stable 3.3V output.
The voltage reduction circuit comprises a voltage reduction chip U5, wherein a pin 1 of the chip U5 is connected with one end of a capacitor C3, and the other end of the capacitor C3 is connected with a pin 6 of a voltage reduction chip U5; the 2 pin of the voltage reduction chip U5 is grounded; the 3 pin is respectively connected with one end of a capacitor C4, one end of a resistor R2 and one end of a resistor R1, the other end of the resistor R1 is grounded, and the other end of a resistor R2 and the other end of a capacitor C4 are both connected with 5V voltage; the 4 pins are respectively connected with one end of the capacitor R3 and one end of the resistor R4, and the other end of the resistor R4 is grounded; the 5 pins of the voltage reduction chip U5 are respectively connected with the other end of the resistor R3, one end of the capacitor C1, one end of the capacitor C2 and the cathode of the diode D1, the other ends of the capacitor C2 and the capacitor C1 are grounded, the anode of the diode D1 is connected with one end of the fuse F1, and the other end of the fuse F1 is connected with the power supply 24V; the 6 pins of the voltage reduction chip U5 are respectively connected with the cathode of the diode D2 and one end of the inductor L1, the anode of the diode D2 is grounded, the other end of the inductor L1 is respectively connected with one end of the capacitor C5, one end of the capacitor C6 and a 5V power supply, and the other ends of the capacitor C5 and the capacitor C6 are grounded.
The voltage stabilizing circuit comprises a voltage stabilizing chip U6, wherein an IN pin of the voltage stabilizing chip U6 is connected with 5V voltage, and an OUT pin is respectively connected with one end of a capacitor C7, one end of a C8, one end of a resistor R14 and 3.3V voltage; the other end of the capacitor C7 and the other end of the capacitor C8 are grounded, and the other end of the resistor R14 is grounded through an indicator light D24.
As shown in fig. 4, the bus communication circuit includes a transceiver U9, a pin 1 of the transceiver U9 is connected to a pin RS485_ RX _ TTL1 of the microprocessor, a pin 4 is connected to a pin RS485_ TX _ TTL1 of the microprocessor, a pin 2 is connected to a pin 3, one end of a resistor R11 and a collector of a transistor Q1, the other end of the resistor R11 is connected to a power supply 5V, an emitter of the transistor Q1 is grounded GND, a base is connected to one end of the resistor R10, the other end of the resistor R10 is connected to one end of a resistor R9 and a pin RS485_ TX _ TTL1 of the microprocessor, and the other end of the resistor R9 is connected to the power supply 5V; an 8-pin of an RS485 transceiver U9 is connected with one end of a power supply 5V and a capacitor C46, a 7-pin is connected with one end of a resistor R12, one end of a fuse F2, one end of a TVS tube D3 and one end of a TVS tube D4, the other end of the resistor R12 and one end of the capacitor C46 are grounded, the other end of the capacitor C46 is connected with a 5V voltage, the other end of the TVS tube D3 is grounded, and the other end of the fuse F2 is connected with a 485B; the 6-pin of the transceiver U9 is connected with one end of a resistor R13, one end of a fuse F3, one end of a TVS tube D5 and the other end of a TVS tube D4, the other end of the TVS tube D5 is grounded GND, the resistor R13 is connected with a power supply 5V, and the other end of the fuse F3 is connected with 485A.
As shown in fig. 5, the wireless conversion module includes a chip U2, the chip U2 is a UART-to-ZigBee wireless chip, the signal input terminal of the chip U2 is connected to the microcontroller, the DAT pin of the chip U2 is connected to the DAT indicator lamp through a resistor R11, the RUN pin of the chip U2 is connected to the RUN indicator lamp through a resistor R10, and the KEY FUN pin of the chip U2 is connected to the switch.
As shown in fig. 6, the terminal P2 is used to connect the illuminance probe to the microprocessor, and the illuminance probe is connected via the terminal P2. The 1 pin of the connecting terminal P2 is connected with a 5V power supply, the 4 pin is grounded, the 2 pin is connected with the 50 pin of the single chip machine, the 3 pin is connected with the 51 pin of the single chip machine, and the 5 pin is connected with the 52 pin of the single chip machine.
The utility model also provides an illumination sensor, and the sensor is provided with the illumination sensor circuit.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (8)
1. The illumination sensor circuit is characterized by comprising an illumination detection head, a microcontroller and a power circuit, wherein the illumination detection head is connected with the microcontroller through a wiring terminal, the microcontroller is further connected with a bus communication circuit, and the bus communication circuit is networked to a monitoring center through a bus.
2. The circuit of claim 1, further comprising a wireless data transmission circuit, wherein the wireless data transmission circuit comprises a wireless conversion module and an indication circuit, and the wireless conversion module is connected to the indication circuit and the microcontroller respectively.
3. The illuminance sensor circuit according to claim 2, wherein the wireless conversion module comprises a chip U2, the chip U2 is a UART-to-ZigBee wireless chip, the signal input terminal of the chip U2 is connected to the microcontroller, the DAT pin of the chip U2 is connected to the indicator light DAT through a resistor R11, the RUN pin of the chip U2 is connected to the indicator light RUN through a resistor R10, and the KEY FUN pin of the chip U2 is connected to the switch.
4. The illuminance sensor circuit according to claim 1, wherein the power supply circuit comprises a voltage step-down circuit and a voltage stabilizing circuit; the voltage reduction circuit converts the 24V voltage into 5V voltage, and the voltage stabilizing circuit converts the 5V voltage into stable 3.3V voltage for output.
5. The illuminance sensor circuit according to claim 4, wherein said voltage-reducing circuit comprises a voltage-reducing chip U5, a pin 1 of said chip U5 is connected to one end of a capacitor C3, and the other end of the capacitor C3 is connected to a pin 6 of a voltage-reducing chip U5; the 2 pin of the voltage reduction chip U5 is grounded; the 3 pin is respectively connected with one end of a capacitor C4, one end of a resistor R2 and one end of a resistor R1, the other end of the resistor R1 is grounded, and the other end of a resistor R2 and the other end of a capacitor C4 are both connected with 5V voltage; the 4 pins are respectively connected with one end of the capacitor R3 and one end of the resistor R4, and the other end of the resistor R4 is grounded; the 5 pins of the voltage reduction chip U5 are respectively connected with the other end of the resistor R3, one end of the capacitor C1, one end of the capacitor C2 and the cathode of the diode D1, the other ends of the capacitor C2 and the capacitor C1 are grounded, the anode of the diode D1 is connected with one end of the fuse F1, and the other end of the fuse F1 is connected with the power supply 24V; the 6 pins of the voltage reduction chip U5 are respectively connected with the cathode of the diode D2 and one end of the inductor L1, the anode of the diode D2 is grounded, the other end of the inductor L1 is respectively connected with one end of the capacitor C5, one end of the capacitor C6 and a 5V power supply, and the other ends of the capacitor C5 and the capacitor C6 are grounded.
6. The illuminance sensor circuit according to claim 4, wherein said voltage regulator circuit comprises a voltage regulator chip U6, an IN pin of said voltage regulator chip U6 is connected to a voltage of 5V, an OUT pin is connected to one end of a capacitor C7, one end of a capacitor C8, one end of a resistor R14, and a voltage of 3.3V, respectively; the other end of the capacitor C7 and the other end of the capacitor C8 are grounded, and the other end of the resistor R14 is grounded through the indicator lamp D24.
7. The illuminance sensor circuit according to claim 1, wherein said bus communication circuit comprises a transceiver U9, and said transceiver U9 has 1 pin connected to RS485_ RX _ TTL1 pin of the microprocessor, 4 pins connected to RS485_ TX _ TTL1 pin of the microprocessor, 2 pins connected to 3 pins, one end of a resistor R11 and a collector of a transistor Q1, respectively, the other end of the resistor R11 connected to power supply 5V, an emitter of the transistor Q1 connected to GND, a base connected to one end of a resistor R10, the other end of the resistor R10 connected to one end of a resistor R9 and to RS485_ TX _ TTL1 pin of the microprocessor, and the other end of the resistor R9 connected to power supply 5V; an 8-pin of an RS485 transceiver U9 is connected with one end of a power supply 5V and a capacitor C46, a 7-pin is connected with one end of a resistor R12, one end of a fuse F2, one end of a TVS tube D3 and one end of a TVS tube D4, the other end of the resistor R12 and one end of the capacitor C46 are grounded, the other end of the capacitor C6 is connected with a 5V voltage, the other end of the TVS tube D3 is grounded, and the other end of the fuse F2 is connected with a 485B; the 6-pin of the transceiver U9 is connected with one end of a resistor R13, one end of a fuse F3, one end of a TVS tube D5 and the other end of a TVS tube D4, the other end of the TVS tube D5 is grounded GND, the resistor R13 is connected with a power supply 5V, and the other end of the fuse F3 is connected with 485A.
8. An illuminance sensor characterized in that the sensor is provided with the illuminance sensor circuit according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220221290.2U CN216746426U (en) | 2022-01-26 | 2022-01-26 | Illuminance sensor circuit and illuminance sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220221290.2U CN216746426U (en) | 2022-01-26 | 2022-01-26 | Illuminance sensor circuit and illuminance sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216746426U true CN216746426U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220221290.2U Active CN216746426U (en) | 2022-01-26 | 2022-01-26 | Illuminance sensor circuit and illuminance sensor |
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| CN (1) | CN216746426U (en) |
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- 2022-01-26 CN CN202220221290.2U patent/CN216746426U/en active Active
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