Optical signal detection device based on optical filter and solar cell panel

Abstract

The utility model relates to the technical field of optical signal transmission, and discloses an optical signal detection device based on an optical filter and a solar cell panel, which is characterized in that a light filter plate is arranged on the solar cell panel, and is used for filtering light except for optical signals with specified wavelengths, so that the optical signals with specified wavelengths can be detected. The solar cell panel receives the optical signal with the specified wavelength emitted by the signal light source and converts the optical signal to obtain the corresponding output voltage, and the output voltage is subsequently converted to obtain information fed back by the optical signal with the specified wavelength, so that optical signal transmission by using the solar cell panel is realized. The problem that an optical signal detection device in the prior art is high in cost is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical signal transmission, in particular to an optical signal detection device based on a filter and a solar panel. Background Art

[0002] In the field of national economy, photodetectors are widely used, such as in fiber optic communication, industrial automation, environmental monitoring, energy utilization, and security defense. It is responsible for receiving optical signals and converting them into electrical signals, and then sending them to the receiving backend for processing.

[0003] Common photodetectors are PIN photodiodes and avalanche photodiodes (APDs). These two types of detectors have the characteristics of high sensitivity, fast response, low noise, good spectral selectivity, and good stability, and can be applied in the field of high-speed communication. However, the effective receiving area of PIN and APD photodiodes is generally very small, and the larger the effective receiving area, the more expensive the price. Therefore, for non-high-speed communication fields, but for communication scenarios with long distances and large receiving surfaces, using PIN and APD photodiodes is too expensive in terms of cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an optical signal detection device based on a filter and a solar panel, aiming to solve the problem of high cost of optical signal detection devices in the prior art.

[0005] The utility model is realized as follows. The utility model provides an optical signal detection device based on a filter and a solar panel, including:

[0006] A solar panel detection circuit, a detection signal transfer circuit, and a signal conversion module;

[0007] The solar panel detection circuit includes a solar panel, a filter, and a diode;

[0008] The diode is electrically connected to the positive and negative electrodes of the solar panel, and the diode is used to provide reverse current protection for the solar panel;

[0009] The filter is disposed on the solar panel, and the filter is used to filter out optical signals other than the specified wavelength optical signal, and the specified wavelength optical signal is an optical signal within the light source wavelength range for the solar panel to receive in the preset plan;

[0010] The solar panel is used to receive the specified wavelength optical signal for light energy conversion and charging processing, so as to generate an output voltage corresponding to the specified wavelength optical signal;

[0011] The detection signal transfer circuit is electrically connected to the solar panel. The detection signal transfer circuit is used for preparatory processing before signal conversion of the output voltage to obtain a signal to be converted corresponding to the output voltage;

[0012] The signal conversion module is electrically connected to the detection signal transfer circuit. The signal conversion module is used for signal conversion processing of the signal to be converted to obtain the information fed back by the signal to be converted.

[0013] Preferably, the detection signal transfer circuit includes a voltage source, a pre-amplification circuit, and a secondary amplification circuit;

[0014] The voltage source is electrically connected to the pre-amplification circuit and the secondary amplification circuit respectively. The voltage source is used to provide a driving voltage to the pre-amplification circuit and the secondary amplification circuit;

[0015] The pre-amplification circuit is electrically connected to the solar panel. The pre-amplification circuit is used for signal amplification processing of the output voltage to obtain a voltage amplification signal corresponding to the output voltage;

[0016] The secondary amplification circuit is electrically connected to the pre-amplification circuit and the signal conversion module respectively. The secondary amplification circuit is used for secondary amplification processing of the voltage amplification signal to obtain a signal to be converted corresponding to the voltage amplification signal, and transmits the signal to be converted to the signal conversion module.

[0017] Preferably, the pre-amplification circuit includes a first NPN transistor, a second NPN transistor, a power supply drive circuit, and a transistor connection circuit;

[0018] Both the first NPN transistor and the second NPN transistor have a collector, a base, and an emitter. The emitter of the first NPN transistor is grounded. The collector of the first NPN transistor is electrically connected to a second resistor. The emitter of the second NPN transistor is connected in parallel with a twelfth capacitor and a twelfth resistor and then grounded;

[0019] The power supply drive circuit is electrically connected to the base of the first NPN transistor and the base of the second NPN transistor respectively to provide a driving voltage to the first NPN transistor and the second NPN transistor;

[0020] The triode connection circuit is electrically connected to the solar panel, the first NPN triode, and the second NPN triode respectively. The triode connection circuit is used to convert the voltage output signal generated by the solar panel into an AC signal, and transmit the AC signal to the base of the first NPN triode and the base of the second NPN triode respectively, so that a voltage change occurs at the collector of the second NPN triode, thereby generating a voltage amplification signal corresponding to the output voltage.

[0021] Preferably, the power supply drive circuit includes a first drive circuit and a second drive circuit;

[0022] The first drive circuit includes a first capacitor, a first resistor, and a tenth resistor. The first capacitor is electrically connected to the voltage source, and the first capacitor is grounded. The first capacitor is used to filter the voltage source. The first resistor is electrically connected to the voltage source, the first capacitor, the tenth resistor, and the base of the first NPN triode respectively. The tenth resistor is electrically connected to the first resistor and the base of the first NPN triode respectively, and the tenth resistor is grounded. The first resistor and the tenth resistor are used to divide the drive voltage provided by the voltage source;

[0023] The second drive circuit includes a second capacitor, a third resistor, and an eleventh resistor. The second capacitor is electrically connected to the voltage source, and the second capacitor is grounded. The second capacitor is used to filter the voltage source. The third resistor is electrically connected to the voltage source, the third resistor, the eleventh resistor, and the base of the second NPN triode respectively. The eleventh resistor is electrically connected to the third resistor and the base of the second NPN triode respectively, and the eleventh resistor is grounded. The third resistor and the eleventh resistor are used to divide the drive voltage provided by the voltage source.

[0024] Preferably, the triode connection circuit includes a first section connection circuit and a second section connection circuit;

[0025] The first section connection circuit includes a tenth capacitor, an eighth resistor, and an eleventh capacitor. The tenth capacitor is electrically connected to the solar panel. The eighth resistor is electrically connected to the tenth capacitor, the eleventh capacitor, and the base of the first NPN triode respectively. The eleventh capacitor is electrically connected to the eighth resistor and the base of the first NPN triode respectively, and the eleventh capacitor is grounded;

[0026] The second-stage connection circuit includes a seventh capacitor, an eighth capacitor, and a fifth resistor. The seventh capacitor is electrically connected to the eighth resistor and the base of the first NPN transistor respectively. The fifth resistor is electrically connected to the seventh capacitor, the eighth capacitor, and the collector of the first NPN transistor respectively. The eighth capacitor is electrically connected to the collector of the first NPN transistor and the base of the second NPN transistor respectively.

[0027] Preferably, the second-stage amplification circuit includes an operational amplifier, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a ninth capacitor, a fourth resistor, a sixth resistor, and a seventh resistor;

[0028] The third capacitor, the fifth capacitor, and the sixth capacitor are electrically connected to the voltage source and the positive power supply terminal of the operational amplifier respectively, for filtering the voltage source;

[0029] The ninth capacitor is electrically connected to the positive power supply terminal of the operational amplifier, and the ninth capacitor is grounded;

[0030] The non-inverting input terminal of the operational amplifier is electrically connected to the collector of the second NPN transistor through a sixth resistor, and the fourth resistor is electrically connected to the sixth resistor and the voltage source respectively;

[0031] The negative feedback terminal of the operational amplifier is electrically connected to the output terminal of the operational amplifier, and the output terminal of the operational amplifier is electrically connected to the analog-to-digital conversion module through a seventh resistor.

[0032] Preferably, the signal conversion module includes an ADC detection module and an FPGA module. The ADC detection module is electrically connected to the detection signal transfer circuit. The ADC detection module is used for performing analog-to-digital conversion processing on the signal to be converted. The FPGA module is electrically connected to the ADC detection module. The FPGA module is used for performing data programming processing on the signal to be converted that has undergone analog-to-digital conversion processing.

[0033] Preferably, it further includes a ninth resistor, and the ninth resistor is electrically connected to the diode.

[0034] The present invention provides an optical signal detection device based on a filter and a solar panel, having the following beneficial effects:

[0035] The utility model solves the problem of high cost of optical signal detection devices in the prior art by setting a filter plate on a solar panel, using the filter plate to filter out light rays other than the specified wavelength optical signal, enabling the solar panel to receive the specified wavelength optical signal emitted by a signal light source and convert it into a corresponding output voltage, and obtaining the information fed back by the specified wavelength optical signal through subsequent conversion of the output voltage, thereby realizing optical signal transmission using the solar panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 FIG. is a schematic structural diagram of an optical signal detection device based on a filter and a solar panel provided by an embodiment of the utility model;

[0037] Figure 2 FIG. is a schematic circuit diagram of an optical signal detection device based on a filter and a solar panel provided by an embodiment of the utility model.

[0038] REFERENCE SIGNS: 1 - solar panel detection circuit, 2 - detection signal transfer circuit, 3 - signal conversion module, 11 - solar panel, 12 - filter, D1 - diode, 21 - pre - amplifier circuit, 22 - secondary amplifier circuit, 31 - ADC detection module, 32 - FPGA module, Q1 - first NPN transistor, Q2 - second NPN transistor, R1 - first resistor, R2 - second resistor, R3 - third resistor, R4 - fourth resistor, R5 - fifth resistor, R6 - sixth resistor, R7 - seventh resistor, R8 - eighth resistor, R9 - ninth resistor, R10 - tenth resistor, R11 - eleventh resistor, C1 - first capacitor, C2 - second capacitor, C3 - third capacitor, C4 - first four - capacitor, C5 - fifth capacitor, C6 - sixth capacitor, C7 - seventh capacitor, C8 - eighth capacitor, C9 - ninth capacitor, C10 - tenth capacitor, C11 - eleventh capacitor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In order to make the objectives, technical solutions and advantages of the utility model clearer, the following further details the utility model with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0040] The following describes the implementation of the utility model in detail with specific embodiments.

[0041] Refer to Figure 1 、 Figure 2 shown, which is a preferred embodiment provided by the utility model.

[0042] The utility model provides an optical signal detection device based on a filter 12 and a solar panel 11, comprising:

[0043] A solar panel detection circuit 1, a detection signal transfer circuit 2, and a signal conversion module 3.

[0044] Specifically, the solar panel detection circuit 1 includes a solar panel 11, a filter 12, and a diode; the diode is electrically connected to the positive and negative electrodes of the solar panel 11 to provide reverse current protection for the solar panel 11; the filter 12 is disposed on the solar panel 11, and the filter 12 is used to filter out optical signals other than the optical signal of a specified wavelength, and the optical signal of the specified wavelength is within the range of the light source wavelength for the solar panel 11 to receive in the preset plan; the solar panel 11 is used to receive the optical signal of the specified wavelength to perform light energy conversion charging processing, thereby generating an output voltage corresponding to the optical signal of the specified wavelength.

[0045] More specifically, the filter 12 can filter out optical signals other than the optical signal of the specified wavelength. That is to say, the solar panel 11 will only receive the optical signal of the specified wavelength. That is to say, when using a specific light source to irradiate the solar panel 11, the solar panel 11 will only receive the light emitted by the specific light source.

[0046] Furthermore, the solar panel 11 can convert the received light into a corresponding output voltage, and the intensity of the output voltage corresponds to the intensity of the light emitted by the specific light source. That is to say, by controlling the irradiation intensity of the specific light source on the solar panel 11, the solar panel 11 can generate a corresponding output voltage, thereby completing the signal transmission.

[0047] More specifically, the detection signal transfer circuit 2 is electrically connected to the solar panel 11. The detection signal transfer circuit 2 is used to perform preparatory processing on the output voltage before signal conversion to obtain a signal to be converted corresponding to the output voltage. The function of the detection signal transfer circuit 2 is to perform pre-processing on the signal so that the signal can be signal-converted in subsequent steps. Generally speaking, the signal conversion preparatory processing represents signal amplification.

[0048] More specifically, the signal conversion module 3 is electrically connected to the detection signal transfer circuit 2. The signal conversion module 3 is used to perform signal conversion processing on the signal to be converted to obtain the information fed back by the signal to be converted. The function of the signal conversion module 3 is to perform signal conversion on the signal to be converted, thereby obtaining the information fed back by the signal to be converted.

[0049] It can be understood that the core of the present invention lies in using the filter 12 to control the light of the solar panel 11, so that only the optical signal of the irradiation light source can reach the solar panel 11, and the solar panel 11 converts the optical signal according to its own photoelectric conversion function, and outputs a corresponding output voltage for subsequent information extraction.

[0050] The utility model provides an optical signal detection device based on a filter 12 and a solar panel 11, which has the following beneficial effects:

[0051] In the utility model, by arranging a filter on the solar panel 11, the filter is used to filter out the light rays other than the specified wavelength optical signal, so that the solar panel 11 receives the specified wavelength optical signal emitted by the signal light source and converts it into a corresponding output voltage. By performing subsequent conversion on the output voltage to obtain the information fed back by the specified wavelength optical signal, the optical signal transmission using the solar panel 11 is realized, and the problem of high cost of the optical signal detection device in the prior art is solved.

[0052] Preferably, the detection signal transfer circuit 2 includes a voltage source, a pre-amplification circuit 21 and a secondary amplification circuit 22.

[0053] Specifically, the voltage source is electrically connected to the pre-amplification circuit 21 and the secondary amplification circuit 22 respectively, and the voltage source is used to provide a driving voltage for the pre-amplification circuit 21 and the secondary amplification circuit 22.

[0054] More specifically, the pre-amplification circuit 21 is electrically connected to the solar panel 11, and the pre-amplification circuit 21 is used to perform signal amplification processing on the output voltage to obtain a voltage amplification signal corresponding to the output voltage.

[0055] More specifically, the secondary amplification circuit 22 is electrically connected to the pre-amplification circuit 21 and the signal conversion module 3 respectively, and the secondary amplification circuit 22 is used to perform secondary amplification processing on the voltage amplification signal to obtain a signal to be converted corresponding to the voltage amplification signal, and transmit the signal to be converted to the signal conversion module 3.

[0056] More specifically, the pre-amplification circuit 21 is electrically connected to the solar panel 11, and the pre-amplification circuit 21 is used to perform signal amplification processing on the output voltage to obtain a voltage amplification signal corresponding to the output voltage.

[0057] More specifically, the secondary amplification circuit 22 is electrically connected to the pre-amplification circuit 21, and the secondary amplification circuit 22 is used to perform secondary amplification processing on the voltage amplification signal to obtain a secondary amplification signal corresponding to the voltage amplification signal, and the secondary amplification signal is used to feed back information on the specified wavelength optical signal.

[0058] More specifically, the pre-amplification circuit 21 and the secondary amplification circuit 22 are a choice for signal transfer because the output voltage converted by the illumination light source transmitted to the solar panel 11 is small and needs to be amplified.

[0059] Preferably, the pre-amplification circuit 21 includes a first NPN transistor, a second NPN transistor, a power supply drive circuit and a transistor connection circuit.

[0060] Specifically, both the first NPN transistor and the second NPN transistor have a collector, a base, and an emitter. The emitter of the first NPN transistor is grounded, the collector of the first NPN transistor is electrically connected to the second resistor, and the emitter of the second NPN transistor is connected in parallel with the twelfth capacitor and the twelfth resistor and then grounded.

[0061] More specifically, the power supply driving circuit is electrically connected to the base of the first NPN transistor and the base of the second NPN transistor respectively to provide a driving voltage for the first NPN transistor and the second NPN transistor.

[0062] More specifically, the transistor connection circuit is electrically connected to the solar panel 11, the first NPN transistor, and the second NPN transistor respectively. The transistor connection circuit is used to convert the voltage output signal generated by the solar panel 11 into an AC signal and transmit the AC signal to the base of the first NPN transistor and the base of the second NPN transistor respectively, so that the collector of the second NPN transistor generates a voltage change, thereby generating a voltage amplification signal corresponding to the output voltage.

[0063] Preferably, the power supply driving circuit includes a first driving circuit and a second driving circuit.

[0064] Specifically, the first driving circuit includes a first capacitor, a first resistor, and a tenth resistor. The first capacitor is electrically connected to the voltage source and the first capacitor is grounded. The first capacitor is used to filter the voltage source. The first resistor is electrically connected to the voltage source, the first capacitor, the tenth resistor, and the base of the first NPN transistor respectively. The tenth resistor is electrically connected to the first resistor and the base of the first NPN transistor respectively, and the tenth resistor is grounded. The first resistor and the tenth resistor are used to divide the driving voltage provided by the voltage source.

[0065] More specifically, the second driving circuit includes a second capacitor, a third resistor, and an eleventh resistor. The second capacitor is electrically connected to the voltage source and the second capacitor is grounded. The second capacitor is used to filter the voltage source. The third resistor is electrically connected to the voltage source, the third resistor, the eleventh resistor, and the base of the second NPN transistor respectively. The eleventh resistor is electrically connected to the third resistor and the base of the second NPN transistor respectively, and the eleventh resistor is grounded. The third resistor and the eleventh resistor are used to divide the driving voltage provided by the voltage source.

[0066] Preferably, the transistor connection circuit includes a first stage connection circuit and a second stage connection circuit.

[0067] Specifically, the first-stage connection circuit includes a tenth capacitor, an eighth resistor, and an eleventh capacitor. The tenth capacitor is electrically connected to the solar panel 11. The eighth resistor is electrically connected to the tenth capacitor, the eleventh capacitor, and the base of the first NPN transistor respectively. The eleventh capacitor is electrically connected to the eighth resistor and the base of the first NPN transistor respectively, and the eleventh capacitor is grounded.

[0068] More specifically, the second-stage connection circuit includes a seventh capacitor, an eighth capacitor, and a fifth resistor. The seventh capacitor is electrically connected to the eighth resistor and the base of the first NPN transistor respectively. The fifth resistor is electrically connected to the seventh capacitor, the eighth capacitor, and the collector of the first NPN transistor respectively. The eighth capacitor is electrically connected to the collector of the first NPN transistor and the base of the second NPN transistor respectively.

[0069] It should be noted that the functions of the first-stage connection circuit and the second-stage connection circuit are to functionally connect the first NPN transistor and the second NPN transistor to form a multi-stage amplifier circuit, so as to amplify the signal step by step and realize the amplification processing of the output voltage.

[0070] Preferably, the second-stage amplifier circuit 22 includes an operational amplifier, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a ninth capacitor, a fourth resistor, a sixth resistor, and a seventh resistor.

[0071] Specifically, the third capacitor, the fifth capacitor, and the sixth capacitor are electrically connected to the voltage source and the positive power supply terminal of the operational amplifier respectively, and are used for filtering the voltage source.

[0072] More specifically, the ninth capacitor is electrically connected to the positive power supply terminal of the operational amplifier, and the ninth capacitor is grounded. The ninth capacitor filters and protects the voltage source.

[0073] More specifically, the non-inverting input terminal of the operational amplifier is electrically connected to the collector of the second NPN transistor through the sixth resistor, and the fourth resistor is electrically connected to the sixth resistor and the voltage source respectively.

[0074] More specifically, the negative feedback terminal of the operational amplifier is electrically connected to the output terminal of the operational amplifier. The output terminal of the operational amplifier is electrically connected to the analog-to-digital conversion module through the seventh resistor.

[0075] More specifically, the function of the operational amplifier is to further amplify the signal, so as to amplify the voltage amplified signal into a signal to be converted.

[0076] Preferably, the signal conversion module 3 includes an ADC detection module 31 and an FPGA module 32. The ADC detection module is electrically connected to the detection signal transfer circuit. The ADC detection module 31 is used to perform analog-to-digital conversion processing on the signal to be converted. The FPGA module 32 is electrically connected to the ADC detection module 31, and the FPGA module 32 is used to perform data programming processing on the signal to be converted that has undergone analog-to-digital conversion processing.

[0077] More specifically, the ADC detection module 31 is electrically connected to the secondary amplification module, and the ADC detection module 31 is used to perform analog-to-digital conversion processing on the secondary amplified signal.

[0078] More specifically, the FPGA module 32 is electrically connected to the ADC detection module 31, and the FPGA module 32 is used to perform data programming processing on the secondary amplified signal that has undergone analog-to-digital conversion processing.

[0079] It can be understood that the functions of the pre-stage amplification circuit 21 and the secondary amplification circuit 22 are to amplify the output voltage generated by the solar panel 11 so that the ADC detection module 31 and the FPGA module 32 can receive the amplified signal and perform corresponding data processing, thereby obtaining the signal transmitted by irradiating the solar panel 11.

[0080] Preferably, it further includes a ninth resistor, and the ninth resistor is electrically connected to the diode.

[0081] Specifically, the ninth resistor is electrically connected to the diode, and the purpose is to increase the resistance value so as to protect the diode.

[0082] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An optical signal detection device based on a filter and a solar panel, characterized in that: include: Solar panel detection circuit, detection signal transfer circuit and signal conversion module; The solar panel detection circuit comprises a solar panel, a filter and a diode; The diode is electrically connected to the positive and negative electrodes of the solar cell panel, and the diode is used to provide reverse current protection for the solar cell panel; The optical filter is arranged on the solar panel, and is used to filter out optical signals other than optical signals of a specified wavelength, wherein the optical signals of the specified wavelength are optical signals within the wavelength range of the light source received by the solar panel in a preset plan; The solar cell panel is used to receive the optical signal of the specified wavelength to perform light energy conversion charging processing, thereby generating an output voltage corresponding to the optical signal of the specified wavelength; The detection signal transfer circuit is electrically connected to the solar cell panel, and is used for performing preparatory processing on the output voltage before signal conversion to obtain a signal to be converted corresponding to the output voltage; The signal conversion module is electrically connected to the detection signal transfer circuit, and the signal conversion module is used to perform signal conversion processing on the signal to be converted to obtain information fed back by the signal to be converted.

2. The optical signal detection device based on the filter and the solar panel as claimed in claim 1, characterized in that: The detection signal transfer circuit includes a voltage source, a front-stage amplifier circuit and a secondary amplifier circuit; The voltage source is electrically connected to the pre-amplifier circuit and the secondary amplifier circuit respectively, and the voltage source is used to provide a driving voltage to the pre-amplifier circuit and the secondary amplifier circuit; The pre-stage amplifier circuit is electrically connected to the solar cell panel, and the pre-stage amplifier circuit is used to perform signal amplification processing on the output voltage to obtain a voltage amplification signal corresponding to the output voltage; The secondary amplifier circuit is electrically connected to the pre-amplifier circuit and the signal conversion module respectively, and is used to perform secondary amplification processing on the voltage amplified signal to obtain a signal to be converted corresponding to the voltage amplified signal, and transmit the signal to be converted to the signal conversion module.

3. The optical signal detection device based on the filter and the solar panel as claimed in claim 2, characterized in that: The pre-amplifier circuit includes a first NPN transistor, a second NPN transistor, a power drive circuit and a transistor connection circuit; The first NPN transistor and the second NPN transistor both have a collector, a base and an emitter, the emitter of the first NPN transistor is grounded, the collector of the first NPN transistor is electrically connected to the second resistor, and the emitter of the second NPN transistor is connected in parallel with the twelfth capacitor and the twelfth resistor and then grounded; The power drive circuit is electrically connected to the base of the first NPN transistor and the base of the second NPN transistor respectively to provide a drive voltage to the first NPN transistor and the second NPN transistor; The transistor connection circuit is electrically connected to the solar panel, the first NPN transistor and the second NPN transistor respectively, and is used to convert the voltage output signal generated by the solar panel into an AC signal, and transmit the AC signal to the base of the first NPN transistor and the base of the second NPN transistor respectively, so that the collector of the second NPN transistor generates a voltage change, thereby generating a voltage amplification signal corresponding to the output voltage.

4. The optical signal detection device based on the filter and the solar panel as claimed in claim 3, characterized in that: The power drive circuit includes a first drive circuit and a second drive circuit; The first driving circuit includes a first capacitor, a first resistor and a tenth resistor, the first capacitor is electrically connected to the voltage source, and the first capacitor is grounded, the first capacitor is used to filter the voltage source, the first resistor is electrically connected to the voltage source, the first capacitor, the tenth resistor and the base of the first NPN transistor respectively, the tenth resistor is electrically connected to the first resistor and the base of the first NPN transistor respectively, and the tenth resistor is grounded, and the first resistor and the tenth resistor are used to divide the driving voltage provided by the voltage source; The second driving circuit includes a second capacitor, a third resistor and an eleventh resistor. The second capacitor is electrically connected to the voltage source and is grounded. The second capacitor is used to filter the voltage source. The third resistor is electrically connected to the voltage source, the eleventh resistor and the base of the second NPN transistor, respectively. The eleventh resistor is electrically connected to the third resistor and the base of the second NPN transistor, respectively, and the eleventh resistor is grounded. The third resistor and the eleventh resistor are used to divide the driving voltage provided by the voltage source.

5. The optical signal detection device based on a filter and a solar panel as claimed in claim 3, characterized in that: The triode connection circuit comprises a first section connection circuit and a second section connection circuit; The first connection circuit includes a tenth capacitor, an eighth resistor and an eleventh capacitor, the tenth capacitor is electrically connected to the solar cell panel, the eighth resistor is electrically connected to the tenth capacitor, the eleventh capacitor and the base of the first NPN transistor respectively, the eleventh capacitor is electrically connected to the eighth resistor and the base of the first NPN transistor respectively, and the eleventh capacitor is grounded; The second connection circuit includes a seventh capacitor, an eighth capacitor and a fifth resistor. The seventh capacitor is electrically connected to the eighth resistor and the base of the first NPN transistor, respectively. The fifth resistor is electrically connected to the seventh capacitor, the eighth capacitor and the collector of the first NPN transistor, respectively. The eighth capacitor is electrically connected to the collector of the first NPN transistor and the base of the second NPN transistor, respectively.

6. The optical signal detection device based on a filter and a solar panel as claimed in claim 3, characterized in that: The secondary amplification circuit includes an operational amplifier, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a ninth capacitor, a fourth resistor, a sixth resistor and a seventh resistor; The third capacitor, the fourth capacitor, the fifth capacitor and the sixth capacitor are electrically connected to the voltage source and the positive power supply terminal of the operational amplifier, respectively, and are used to filter the voltage source; The ninth capacitor is electrically connected to the positive power supply terminal of the operational amplifier, and the ninth capacitor is grounded; The signal non-inverting input terminal of the operational amplifier is electrically connected to the collector of the second NPN transistor through a sixth resistor, and the fourth resistor is electrically connected to the sixth resistor and the voltage source respectively; The signal negative feedback terminal of the operational amplifier is electrically connected to the signal output terminal of the operational amplifier, and the signal output terminal of the operational amplifier is electrically connected to the analog-to-digital conversion module through the seventh resistor.

7. The optical signal detection device based on a filter and a solar panel as claimed in claim 1, characterized in that: The signal conversion module includes an ADC detection module and an FPGA module. The ADC detection module is electrically connected to the detection signal transfer circuit. The ADC detection module is used to perform analog-to-digital conversion on the signal to be converted. The FPGA module is electrically connected to the ADC detection module. The FPGA module is used to perform data programming on the signal to be converted after the analog-to-digital conversion.

8. The optical signal detection device based on a filter and a solar panel as claimed in claim 1, characterized in that: A ninth resistor is also included, and the ninth resistor is electrically connected to the diode.

Images