Brightness-controllable infrared light supplementing buoy

Abstract

The utility model discloses an infrared light supplementing buoy with controllable brightness. The infrared light supplementing buoy comprises a shell, a circuit board and a lithium battery, the shell is composed of a shell body I and a shell body II. The circuit board is fixedly connected in the shell I and the shell II, and the front face of the circuit board is fixedly connected with a charging port, a working mode adjusting dial switch and a lithium battery socket. The working mode adjusting dial switch and the circuit board form a capacitance induction switch circuit through various electronic components, and the capacitance induction switch circuit is connected with a forward and reverse 180-degree and 360-degree illumination switching circuit, a forward and reverse illumination brightness control circuit and a water quality turbidity illumination brightness control circuit; the lithium battery is fixedly connected to the reverse side of the circuit board, and the lithium battery is connected with the lithium battery socket through a connecting line and a plug. According to the utility model, automatic switch-on and switch-off are realized through overwater and underwater capacitance difference, and brightness adjustment can be automatically carried out according to water turbidity or light supplement intensity can be controlled according to the floating direction of the light supplement buoy.

Description

Technical Field

[0001] This utility model belongs to the field of fishing gear technology, and specifically relates to an infrared supplementary lighting float with controllable brightness. Background Technology

[0002] When fishing at night, the underwater camera used to observe fish behavior may not be able to capture clear images due to the influence of light and water quality, making it impossible for anglers to understand the specific situation underwater. In this case, anglers usually use infrared lights to provide a light source for the camera. However, the existing infrared lights have relatively limited brightness, and their supplementary light intensity cannot meet the requirements of underwater cameras in murky water.

[0003] A search revealed an existing technology announcement number, CN 216018622 U, for a float-mounted high-light device. When this device uses a MOSFET switch, the float sinks into the water, and the sensing point receives a water-contact signal, which is transmitted to the MOSFET switch. This closes the switch, completing the circuit, and the LED light emits infrared light. When using a gravity switch, after the float sinks and tilts, mercury droplets in the gravity switch flow to a lower part of the container. If these droplets simultaneously contact two electrodes, the switch closes the circuit, and the LED light receives power and emits infrared light, providing a light source for the night fishing camera. However, the voltage and current within the device cannot maintain a consistently stable output, which may cause the infrared light emitted by the LED to fluctuate in intensity, affecting the lighting effect.

[0004] After searching, the existing technology announcement number CN223140005U is used to detect the floating high light. This device uses the float entering the water signal detection electrode and the switching circuit to control the activation of two sets of infrared LEDs with different brightness to provide a light source for the underwater camera. However, the two sets of LEDs in this device can only be kept on at the same time and cannot be adjusted. This not only consumes a lot of power, but also may cause the underwater camera to be overexposed when the supplementary lighting needs of the underwater camera are weak. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an infrared supplementary lighting float with controllable brightness. This invention can automatically switch on and off by using the capacitance difference between the surface and underwater, and can also automatically adjust the brightness according to the turbidity of the water or control the supplementary lighting intensity according to the floating direction of the supplementary lighting float.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An infrared supplementary lighting float with controllable brightness includes a shell, a circuit board, and a lithium battery. The shell consists of a housing I and a housing II. The circuit board is fixedly connected inside the housing I and housing II. A charging port, a working mode adjustment DIP switch, and a lithium battery socket are fixedly connected to the front of the circuit board. The working mode adjustment DIP switch is connected to a capacitive sensing switch circuit, a forward and reverse 180° and 360° lighting switching circuit, a forward and reverse lighting brightness control circuit, and a water turbidity lighting brightness control circuit, all composed of various electronic components on the circuit board. The lithium battery is fixedly connected to the back of the circuit board and is connected to the lithium battery socket via a connecting wire and a plug.

[0008] The top and bottom of housing I are respectively provided with hanging ring I and hanging ring II. A support plate is located above hanging ring II and fixedly connected to housing I. A glue injection groove with a glue injection port on one side is located below hanging ring I and fixedly connected to housing I. A sealing groove is provided on the side of housing I. The top and bottom of housing II are respectively provided with hanging ring III and hanging ring IV. A detection groove with symmetrical connecting holes on both sides is located below hanging ring III and fixedly connected to housing II. A sealing strip corresponding to the sealing groove is provided on the side of housing II. The material of housing I and housing II is transparent ABS plastic.

[0009] The forward and reverse 180° and 360° lighting switching circuit, the forward and reverse lighting brightness control circuit, and the water turbidity lighting brightness control circuit share the front low-brightness infrared lighting beads, the front high-brightness infrared lighting beads, and infrared lighting beads. Several front low-brightness infrared lighting beads and several front high-brightness infrared lighting beads are fixedly connected to the top and bottom of the front of the circuit board, respectively, and several infrared lighting beads are fixedly connected to the back of the circuit board at both ends of the lithium battery.

[0010] The capacitive sensing switch circuit consists of a water sensing chip located below the circuit board, a water sensing capacitor signal detection point, a subsequent switching transistor, and several capacitors I and resistors I. The water sensing chip operates at a voltage of 2.4-5.5V and has a standby voltage of 10uA. The water sensing chip detects the capacitance difference between the surface and underwater areas, and outputs a high level to control the circuit to open or a low level to control the circuit to close. The several capacitors I and several resistors I are respectively the water sensing chip detection input anti-interference resistor, the water sensing detection sensitivity adjustment resistor, the water sensing chip fixed pull-up resistor, the water sensing chip reference capacitor, and the water sensing sampling capacitor.

[0011] The forward and reverse lighting brightness control circuit and the forward and reverse 180° and 360° lighting switching circuit consist of a four-way angle switch, a front high-brightness plus rear 360° infrared lighting lamp brightness adjustment transistor, a Zener diode, a front low-brightness infrared lighting lamp brightness adjustment transistor, and several resistors IV, V, and VI. The four-way angle switch is located diagonally below the working mode adjustment DIP switch and is fixedly connected to the circuit board. Resistors IV are respectively the front high-brightness plus rear 360° infrared lighting lamp brightness limiting resistor and the front low-brightness infrared lighting lamp brightness limiting resistor; resistor V is the front high-brightness plus rear 360° infrared lighting lamp brightness signal current limiting resistor and the front low-brightness infrared lighting lamp brightness current limiting resistor; resistor VI is the rear infrared lighting current limiting resistor and the front infrared lighting current limiting resistor.

[0012] The water turbidity illumination brightness control circuit consists of a water quality detection infrared emitting tube, a water quality detection infrared receiving tube, a water quality dual operational amplifier LMV358 chip, an adjustable infrared receiving signal resistor, an anti-backflow diode for automatic brightness signal in turbidity, an anti-backflow diode for severe turbidity signal, and several capacitors II, resistors II, III, and III. The water quality detection infrared emitting tube and the water quality detection infrared receiving tube are symmetrically fixed and connected to the top of the reverse side of the circuit board. The capacitors II are respectively the infrared emission stabilizing capacitor and the infrared receiving stabilizing capacitor. The resistors II are respectively the positive terminal voltage divider resistor, the negative terminal voltage divider resistor, the water turbidity severity signal adjustment resistor, the operational adjustable brightness output current limiting resistor, the infrared receiving signal current limiting resistor, and the water turbidity severity signal current limiting resistor. The capacitors III are respectively the operational adjustable brightness output filter capacitor and the operational amplifier power supply filter capacitor. The resistors III are respectively the infrared receiving power adjustment resistor I, the infrared emission current limiting resistor I, the infrared emission current limiting resistor II, the infrared receiving signal adjustment resistor II, and the infrared shunt resistor.

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] 1) By setting a capacitive sensing switch circuit on the circuit board to replace the external switch assembly, the capacitance difference between underwater and above water is used to control the light to turn on and off, thereby realizing the automatic start and stop of the supplementary lighting float when it enters the water, which is energy-saving and easy to operate.

[0015] 2) The brightness or range of the supplementary lighting float can be controlled by adjusting the orientation of the circuit board to control the illumination of the low-brightness infrared LEDs, high-brightness infrared LEDs, or individual or combined infrared LEDs. When the supplementary lighting float floats forward, it illuminates with the low-brightness infrared LEDs or provides 180-degree illumination; when it floats backward, it illuminates with the high-brightness infrared LEDs or provides 360-degree illumination. When the water quality is good, controlling the supplementary lighting float to float forward can meet the supplementary lighting intensity required by infrared cameras in normal waters. When the water quality is extremely turbid, controlling the supplementary lighting float to float backward will allow the supplementary lighting float to operate at full power, increasing the intensity of the emitted infrared light and effectively providing illumination for infrared cameras in turbid waters.

[0016] 3) By setting a water turbidity illumination brightness control circuit on the circuit board, the supplementary light float can automatically control the brightness of the front low-brightness infrared illumination beads and infrared illumination beads according to the turbidity of the water, so as to provide the best illumination effect for the infrared camera. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of an infrared supplementary lighting float with controllable brightness according to the present invention.

[0018] Appendix Figure 2 It is attached Figure 1 Schematic diagram of the internal structure of the inner and outer shells;

[0019] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the structure of the middle shell II;

[0020] Appendix Figure 4 It is attached Figure 1 Schematic diagram of the structure of the middle shell I;

[0021] Appendix Figure 5 It is attached Figure 1 A schematic diagram of the circuit board structure;

[0022] Appendix Figure 6 It is attached Figure 5 A schematic diagram of the DIP switch for adjusting the working mode;

[0023] Appendix Figure 7 It is attached Figure 5 A magnified structural diagram of part A in the middle;

[0024] Appendix Figure 8 It is attached Figure 1 A schematic diagram of the reverse side structure of the circuit board;

[0025] Appendix Figure 9 It is attached Figure 1 A schematic diagram of the mounting structure of electronic components on a circuit board;

[0026] In the diagram: 1. Outer shell; 101. Shell I; 1011. Hanging ring I; 1012. Hanging ring II; 1013. Glue injection groove; 1014. Glue injection port; 1015. Sealing groove; 1016. Support plate; 102. Shell II; 1021. Hanging ring III; 1022. Hanging ring IV; 1023. Detection groove; 1024. Connecting hole; 1025. Sealing strip; 2. Circuit board; 201. Charging port; 202. Working mode adjustment DIP switch; 2021. DIP switch I; 2022. DIP switch II; 2023. DIP switch III; 203. Lithium battery socket; 3. Front low-brightness infrared illumination bead; 4. Front high-brightness infrared illumination bead; 5. Lithium battery; 6. Water sensor detection chip; 7. Water sensor capacitive signal detection point; 8. 10. Infrared emitting tube for water quality detection; 11. Infrared illumination lamp bead; 12. Four-way angle switch; 13. Infrared receiving tube for water quality detection; 14. Capacitor I; 15. Resistor I; 16. Power stage switching transistor; 17. LMV358 chip for water quality dual operational amplifier; 18. Capacitor II; 19. Resistor II; 20. Capacitor III; 21. Adjustable resistor for infrared receiving signal; 22. Resistor III; 23. Transistor for brightness adjustment of front high-brightness and back 360-degree infrared illumination lamp bead; 24. Zener diode; 25. Resistor V; 26. Transistor for brightness adjustment of front low-brightness infrared illumination lamp bead; 27. Resistor VI; 28. Diode for anti-backflow of automatic brightness signal for water turbidity; 29. ​​Diode for anti-backflow of signal for severe water turbidity. Detailed Implementation

[0027] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-9 The technical solution of this utility model will be further described in detail below.

[0028] An infrared supplementary lighting float with controllable brightness includes a shell 1, a circuit board 2, and a lithium battery 5. The shell 1 is composed of a housing I 101 and a housing II 102. The circuit board 2 is fixedly connected inside the housing I 101 and the housing II 102. A charging port 201, a working mode adjustment DIP switch 202, and a lithium battery socket 203 are fixedly connected to the front of the circuit board 2. The working mode adjustment DIP switch 202 is connected to a capacitive sensing switch circuit, a forward and reverse 180° and 360° lighting switching circuit, a forward and reverse lighting brightness control circuit, and a water turbidity lighting brightness control circuit on the circuit board 2 through various electronic components. The lithium battery 5 is fixedly connected to the back of the circuit board 2 and is connected to the lithium battery socket 203 through a connecting wire and a plug.

[0029] The top and bottom of housing I101 are respectively provided with hanging ring I1011 and hanging ring II1012. Support plate 1016 is located above hanging ring II1012 and fixedly connected to housing I101. Glue injection groove 1013 with glue injection port 1014 on one side is located below hanging ring I1011 and fixedly connected to housing I101. Sealing groove 1015 is provided on the side of housing I101. The top and bottom of housing II102 are respectively provided with hanging ring III1021 and hanging ring IV1022. Detection groove 1023 with symmetrical connection holes 1024 on both sides is located below hanging ring III1021 and fixedly connected to housing II102. Sealing strip 1025 corresponding to sealing groove 1015 is provided on the side of housing II102. The material of housing I101 and housing II102 is transparent ABS plastic.

[0030] The forward and reverse 180° and 360° lighting switching circuit, the forward and reverse lighting brightness control circuit, and the water turbidity lighting brightness control circuit share the front low-brightness infrared lighting bead 3, the front high-brightness infrared lighting bead 4, and the infrared lighting bead 9. Several front low-brightness infrared lighting beads 3 and several front high-brightness infrared lighting beads 4 are respectively fixedly connected to the top and bottom of the front of the circuit board 2, and several infrared lighting beads 9 are respectively located at both ends of the lithium battery 5 and fixedly connected to the back of the circuit board 2.

[0031] The capacitive sensing switch circuit consists of a water sensing chip 6 located below the circuit board 2, a water sensing capacitor signal detection point 7, a subsequent switching transistor 14, and several capacitors I12 and resistors I13. The water sensing chip 6 is model JL01B, with an operating voltage of 2.4-5.5V and a standby circuit of 10uA. The water sensing chip 6 detects the capacitance difference between the surface and underwater, and outputs a high level to control the circuit to turn on or a low level to control the circuit to turn off. The several capacitors I12 and several resistors I13 are respectively the water sensing chip detection input anti-interference resistor, the water sensing detection sensitivity adjustment resistor, the water sensing chip fixed pull-up resistor, the water sensing chip reference capacitor, and the water sensing sampling capacitor.

[0032] The forward and reverse lighting brightness control circuit and the forward and reverse 180° and 360° lighting switching circuit consist of a four-way angle switch 10, a front high-brightness plus rear 360° infrared lighting lamp brightness adjustment transistor 22, a 3.3V Zener diode 23, a front low-brightness infrared lighting lamp brightness adjustment transistor 25, and several resistors IV21, V24, and VI26. The four-way angle switch 10 is located diagonally below the working mode adjustment DIP switch 202 and is fixedly connected to the circuit board 2. Resistors IV21 are respectively the front high-brightness plus rear 360° infrared lighting lamp brightness limiting resistors and the front low-brightness infrared lighting lamp brightness limiting resistors; resistor V24 is the front high-brightness plus rear 360° infrared lighting lamp brightness signal current limiting resistor and the front low-brightness infrared lighting lamp brightness current limiting resistor; resistor VI26 is the rear infrared lighting current limiting resistor and the front infrared lighting current limiting resistor.

[0033] The water turbidity illumination brightness control circuit consists of a water quality detection infrared emitting tube 8, a water quality detection infrared receiving tube 11, a water quality dual operational amplifier LMV358 chip 15, an adjustable infrared receiving signal resistor 19, an anti-backflow diode for automatic brightness signal in turbid water 27, an anti-backflow diode for severe turbidity signal 28, and several capacitors II 16, resistors II 17, capacitors III 18, and resistors III 20. The water quality detection infrared emitting tube 8 and the water quality detection infrared receiving tube 11 are symmetrically fixedly connected to the top of the reverse side of the circuit board. The capacitors II 16 are for infrared... The transmitter stabilizing capacitor and the infrared receiver stabilizing capacitor are respectively a 3.3V positive voltage divider resistor, a negative voltage divider resistor, a water turbidity severity signal adjustment resistor, an operational adjustable brightness output current limiting resistor, an infrared receiver signal current limiting resistor, and a water turbidity severity signal current limiting resistor; the capacitors III18 are respectively an operational adjustable brightness output filter capacitor and an operational amplifier power supply filter capacitor; the resistors III20 are respectively an infrared receiver power adjustment resistor I, an infrared transmitter current limiting resistor I, an infrared transmitter current limiting resistor II, an infrared receiver signal adjustment resistor II, and an infrared shunt resistor.

[0034] An infrared supplementary lighting float with controllable brightness operates as follows:

[0035] After adjusting the switch modes of DIP switches Ⅰ2021, Ⅱ2022, and Ⅲ2023 on DIP switch 202 to select one of the following circuits: forward / reverse 180° and 360° lighting switching circuit, forward / reverse lighting brightness control circuit, and water turbidity lighting brightness control circuit; install the charging port 201 on circuit board 2 into the glue injection groove 1013 on housing Ⅰ101, and pour resin glue made by mixing transparent A and B resin glues in a certain proportion into the glue injection groove 1013 through the glue injection port 1014, so that circuit board 2 is fixedly connected to housing Ⅰ101; then, the water quality detection red... The external emitting tube 8 and the water quality detection infrared receiving tube 11 are respectively fixed into the connecting holes 1024 on both sides of the detection groove 1023, and the hanging ring I 1011 and the hanging ring III 1021 are aligned. Then, the housing I 101 and the housing II 102 are pressed down. The housing I 101 and the housing II 102 are fixedly connected together by the sealing strip 1025 and the sealing groove 1015. When the supplementary light float is put into the water after the hanging ring I 1011 and the hanging ring III 1021 are tied with the connecting line, the supplementary light float floats in the positive direction. When the supplementary light float is put into the water after the hanging ring II 1012 and the hanging ring IV 1022 are tied with the connecting line, the supplementary light float floats in the negative direction.

[0036] When DIP switch I 2021 on the working mode adjustment DIP switch 202 is turned on and DIP switches II 2022 and III 2023 are turned off, the forward and reverse illumination brightness control circuits are connected. After the supplementary light float is immersed in water, the capacitive sensing switch circuit is turned on. When the supplementary light float floats forward, the lower contact of the four-way angle switch 10 is turned on, which turns on the low brightness control circuit, thereby controlling the front low-brightness infrared illumination lamp 3 to emit light. When the supplementary light float floats in reverse, the upper contact of the four-way angle switch 10 is turned on, which turns on the high brightness control circuit, thereby controlling the front high-brightness infrared illumination lamp 4 to emit light.

[0037] When DIP switch II 2022 on the working mode adjustment DIP switch 202 is turned on and DIP switches I 2021 and III 2023 are turned off, the forward and reverse 180° and 360° lighting switching circuits are connected; after the supplementary light float is immersed in water, the capacitive sensing switch circuit is turned on. When the supplementary light float floats forward, the lower contact of the four-way angle switch 10 is turned on, causing the high-brightness infrared illumination bead 4 on the front to emit light, thereby achieving 180° supplementary lighting; when the supplementary light float floats in reverse, the upper contact of the four-way angle switch 10 is turned on, causing the low-brightness infrared illumination bead 3 and infrared illumination bead 9 on the front to emit light, thereby achieving 360° supplementary lighting;

[0038] When DIP switch Ⅲ2023 on the working mode adjustment DIP switch 202 is turned on, and DIP switches Ⅰ2021 and Ⅱ2022 are turned off, the water turbidity illumination brightness control circuit is connected; after the supplementary light float is immersed in the water, the capacitive sensing switch circuit is turned on, and the 940-band infrared light emitted by the water quality detection infrared emitting tube 8 passes through the water in the detection tank 1023 and reaches the water quality detection infrared receiving tube 11, so that the water quality detection infrared receiving tube 11 adjusts the output level according to the magnitude of the received infrared light; the more turbid the water... The smaller the infrared light received by the water quality detection infrared receiver tube 11, the clearer the water quality and the larger the infrared light received by the water quality detection infrared receiver tube 11. The received signal is processed by the water quality dual operational amplifier LMV358 chip 15. The more turbid the water quality, the higher the output level and the brighter the front low-brightness infrared illumination lamp 3 and infrared illumination lamp 9. The clearer the water quality, the lower the output level and the lower the brightness of the front low-brightness infrared illumination lamp 3 and infrared illumination lamp 9, thereby realizing automatic brightness adjustment.

[0039] In the description of this utility model, unless otherwise stated, "a number" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In summary, the electronic or electrical components, including but not limited to circuit boards, charging ports, operating mode adjustment DIP switches, and lithium batteries, are existing components that were custom-made or purchased. Furthermore, the lithium battery charging circuit in the circuit board uses conventional circuit or electrical connections found in existing technologies.

[0041] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A brightness-controllable infrared supplemental lighting float, comprising a shell, a circuit board, and a lithium battery; characterized in that... The outer casing consists of casing I and casing II. The circuit board is fixedly connected inside casing I and casing II. A charging port, a working mode adjustment DIP switch, and a lithium battery socket are fixedly connected to the front of the circuit board. The working mode adjustment DIP switch is connected to a capacitive sensing switch circuit, a forward and reverse 180° and 360° lighting switching circuit, a forward and reverse lighting brightness control circuit, and a water turbidity lighting brightness control circuit, which are composed of various electronic components on the circuit board. The lithium battery is fixedly connected to the back of the circuit board and is connected to the lithium battery socket through a connecting wire and a plug. The forward and reverse 180° and 360° lighting switching circuit, the forward and reverse lighting brightness control circuit, and the water turbidity lighting brightness control circuit share the front low-brightness infrared lighting beads, the front high-brightness infrared lighting beads, and infrared lighting beads. Several front low-brightness infrared lighting beads and several front high-brightness infrared lighting beads are fixedly connected to the top and bottom of the front of the circuit board, respectively, and several infrared lighting beads are fixedly connected to the back of the circuit board at both ends of the lithium battery.

2. The infrared supplementary lighting float with controllable brightness according to claim 1, characterized in that... The top and bottom of housing I are respectively provided with hanging ring I and hanging ring II. A support plate is located above hanging ring II and fixedly connected to housing I. A glue injection groove with a glue injection port on one side is located below hanging ring I and fixedly connected to housing I. A sealing groove is provided on the side of housing I. The top and bottom of housing II are respectively provided with hanging ring III and hanging ring IV. A detection groove with symmetrical connecting holes on both sides is located below hanging ring III and fixedly connected to housing II. A sealing strip corresponding to the sealing groove is provided on the side of housing II.

3. The infrared supplementary lighting float with controllable brightness according to claim 1, characterized in that... The capacitive sensing switch circuit consists of a water sensing chip located below the circuit board, a water sensing capacitor signal detection point, a subsequent switching transistor, and several capacitors I and resistors I. The water sensing chip operates at a voltage of 2.4-5.5V and has a standby voltage of 10uA. The water sensing chip detects the capacitance difference between the surface and underwater areas, and outputs a high level to control the circuit to open or a low level to control the circuit to close. The several capacitors I and several resistors I are respectively the water sensing chip detection input anti-interference resistor, the water sensing detection sensitivity adjustment resistor, the water sensing chip fixed pull-up resistor, the water sensing chip reference capacitor, and the water sensing sampling capacitor.

4. The infrared supplementary lighting float with controllable brightness according to claim 1, characterized in that... The forward and reverse lighting brightness control circuit and the forward and reverse 180° and 360° lighting switching circuit consist of a four-way angle switch, a front high-brightness plus rear 360° infrared lighting lamp brightness adjustment transistor, a Zener diode, a front low-brightness infrared lighting lamp brightness adjustment transistor, and several resistors IV, V, and VI. The four-way angle switch is located diagonally below the working mode adjustment DIP switch and is fixedly connected to the circuit board. Resistors IV are the brightness limiting resistors for the front high-brightness plus rear 360° infrared lighting lamp and the front low-brightness infrared lighting lamp, respectively. Resistor V is the current limiting resistor for the brightness signal of the front high-brightness plus rear 360° infrared lighting lamp and the front low-brightness infrared lighting lamp, respectively. Resistor VI is the current limiting resistor for the rear infrared lighting and the front infrared lighting.

5. The infrared supplementary lighting float with controllable brightness according to claim 1, characterized in that... The water turbidity illumination brightness control circuit consists of a water quality detection infrared emitting tube, a water quality detection infrared receiving tube, a water quality dual operational amplifier LMV358 chip, an adjustable infrared receiving signal resistor, an anti-backflow diode for automatic brightness signal in turbidity, an anti-backflow diode for severe turbidity signal, and several capacitors II, resistors II, III, and III. The water quality detection infrared emitting tube and the water quality detection infrared receiving tube are symmetrically fixed and connected to the top of the reverse side of the circuit board. The capacitors II are respectively the infrared emission stabilizing capacitor and the infrared receiving stabilizing capacitor. The resistors II are respectively the positive terminal voltage divider resistor, the negative terminal voltage divider resistor, the water turbidity severity signal adjustment resistor, the operational adjustable brightness output current limiting resistor, the infrared receiving signal current limiting resistor, and the water turbidity severity signal current limiting resistor. The capacitors III are respectively the operational adjustable brightness output filter capacitor and the operational amplifier power supply filter capacitor. The resistors III are respectively the infrared receiving power adjustment resistor I, the infrared emission current limiting resistor I, the infrared emission current limiting resistor II, the infrared receiving signal adjustment resistor II, and the infrared shunt resistor.

6. The infrared supplementary lighting float with controllable brightness according to claim 1, characterized in that... The shell I and shell II are made of transparent ABS plastic.

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