Configurable low-light night vision device circuit device and working method

Abstract

A configurable low-light level night vision device circuit device and a working method thereof, the configurable low-light level night vision device circuit device comprises a power management module (11) used as a power supply, a master control MCU module (15) used for logic processing, and a configuration module group arranged between the power management module (11) and the master control MCU module (15), through the power management module (11), electric energy power is supplied to a low-light level night vision device, and the low-light level night vision device is supplied to the master control MCU module (15). Through the configuration module group, performance real-time matching of electronic components of the low-light-level night vision device is realized, through the master control MCU module (15), logic signal processing control between the power management module (11) and the configuration module group is realized, and the working state of the low-light-level night vision device is enabled to be in logic program control. The technical problems that various low-light level night vision devices are obviously different in the aspects of function control, power consumption requirements and the like, and a circuit system and a terminal product have a strict matching relation are solved, and therefore the configurable performance between the various low-light level night vision devices is improved.

Description

Technical Field

[0001] This invention relates to a low-light night vision device circuit and operating method, and more particularly to a configurable low-light night vision device circuit and operating method. Background Technology

[0002] A low-light night vision device is an instrument that uses weak natural light such as moonlight, starlight, and atmospheric glow as illumination sources. It uses an image intensifier to amplify and convert the weak photons reflected from the target into a visible image, thus enabling nighttime observation. Low-light night vision devices are widely used in military reconnaissance, law enforcement patrols, and industrial detection, and are particularly valuable in the military field. Therefore, the circuitry of a low-light night vision device is a crucial electronic component. With the increasing diversity of low-light night vision device products, a complete product matrix has been developed, encompassing monocular / monocular, monocular / binocular, binocular / binocular, and quad-bullet / binocular devices, to precisely adapt to different application scenarios. The circuit system is responsible for core functions such as power supply, logic control, and signal processing, directly determining the overall performance and stability of the device. Different types of low-light night vision devices differ significantly in functional control and power consumption requirements, and a strict matching relationship exists between the circuit system and the end product. Although some application modules, such as intensifier driver control, high beam protection, and auxiliary lighting, have the same functions, they still suffer from low universality, missing functions, difficulty in porting, and poor configurability. This invention, by enabling the operation of low-light night vision devices to be under logical program control, effectively explores and studies the technical problems of significant differences in functional control and power consumption requirements among various low-light night vision devices, and the strict matching relationship between circuit systems and end products. The statements herein provide only background information related to this invention and do not necessarily constitute prior art. The technical solution of this invention is based on the technical disclosure provided by the applicant that solves the actual technical problems in the course of work, and the existing technical problems, technical features and technical effects in similar patent literature and background art obtained through retrieval. Summary of the Invention

[0003] The subject of this invention is a configurable low-light night vision device circuit. The subject of this invention is a method for operating a configurable low-light night vision device circuit.

[0004] To overcome the above-mentioned technical shortcomings, the purpose of this invention is to provide a configurable low-light night vision device circuit device and operating method, thereby improving the configurability among various low-light night vision devices.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a configurable low-light night vision device circuit device, comprising a power management module for power supply, a main control MCU module for logic processing, and a configuration module group disposed between the power management module and the main control MCU module.

[0006] By designing a power management module, a main control MCU module, and a configuration module group, the power management module provides power to the low-light night vision device. The configuration module group enables real-time performance matching of the electronic components of the low-light night vision device. The main control MCU module enables logic signal processing control between the power management module and the configuration module group, ensuring that the working state of the low-light night vision device is under logical program control. This solves the technical problem of significant differences in functional control and power consumption requirements among various low-light night vision devices, as well as the strict matching relationship between the circuit system and the terminal product. Therefore, it improves the configurability among various low-light night vision devices.

[0007] This invention designs a system in which the power management module, the main control MCU module, and the configuration module are interconnected in a manner that keeps the working state of the low-light night vision device under logical program control.

[0008] This invention designs a method for connecting the configuration module group with the power management module and the main control MCU module in a way that matches the performance of the electronic components of the low-light night vision device in real time.

[0009] The present invention designs a configuration module group that includes a peripheral driver module, an intelligent protection module, and an expansion module.

[0010] The technical effect of the above four technical solutions is that they achieve matching circuit compatibility with various low-light night vision devices.

[0011] This invention designs a power management module whose power output interface is connected to the power input interface T1 of the peripheral driver module, the power input interface T2 of the intelligent protection module, the power input interface T3 of the expansion module, and the power input interface T4 of the main control MCU module. The main control MCU module's monitoring input interface W1 is connected to the power management module, and its monitoring input interfaces W2, W3, W4, and W5 are connected to the intelligent protection module. The main control MCU module's monitoring input interface W6 is connected to the expansion module, and its control output interfaces Y1, Y2, Y3, and Y4 are connected to the peripheral driver module. The main control MCU module's control output interface Y5 is connected to the expansion module.

[0012] The technical effect of the above technical solution is that the power management module, peripheral driver module, intelligent protection module, expansion module and main control MCU module constitute the basic technical solution of the present invention, and solve the technical problem of the present invention.

[0013] This invention designs a power management module comprising a first PMOS transistor Q1, a Schottky diode D1, a PNP transistor VT1, resistors R1 and R2, a second PMOS transistor Q2, a third PMOS transistor Q3, an external battery J1, an internal battery J2, a coil L1, a resistor R3, a first boost converter chip U1, a capacitor C1, resistors R4 and R5, a capacitor C2, a resistor R6, a capacitor C3, and a resistor R7, a second boost converter chip U2, a coil L2, a power switch J3, a capacitor C4, resistors R8 and R9, and a capacitor C5. The first boost converter chip U1 and the second boost converter chip U2 are respectively provided with interfaces LX, IN, EN, OUT, and FB. The interface GND, one interface of power switch J3, the gate of the third PMOS transistor Q3, the emitter of PNP transistor VT1, and the drain of the first PMOS transistor Q1 are respectively connected to the monitoring input interface W1 of the main control MCU module. The collector of PNP transistor VT1, the source of the first PMOS transistor Q1, and one interface of resistor R2 are interconnected. The base of PNP transistor VT1, one interface of resistor R1, and the cathode of Schottky diode D1 are interconnected. The other interface of resistor R2 and the other interface of resistor R1 are respectively connected to ground. The gate of the first PMOS transistor Q1, the anode of Schottky diode D1, and the external... One of the interfaces of battery J1, one of the interfaces of coil L1, the interface IN of the first boost chip U1, and one of the interfaces of resistor R3 are connected to each other. The other interface of external battery J1 and the other interface of internal battery J2 are connected to ground. One interface of internal battery J2 is connected to the gate of the second PMOS transistor Q2. The other interface of coil L1 is connected to the interface LX of the first boost chip U1. The other interface of resistor R3 is connected to the interface EN of the first boost chip U1. The interfaces GND of the first boost chip U1, the other interface of resistor R5, and the other interface of capacitor C2 are also connected to ground. The interfaces of the first boost chip U1, resistor R6 (one other interface), capacitor C3 (one other interface), second boost chip U2 (GND interface), resistor R9 (one other interface), and capacitor C5 (one other interface) are respectively connected to ground. The interfaces of the first boost chip U1 (FB), resistor R5 (one other interface), capacitor C1 (one other interface), and resistor R4 (one other interface) are interconnected. The interfaces of the first boost chip U1 (OUT), capacitor C1 (one other interface), resistor R4 (one other interface), the source of the second PMOS transistor Q2, the source of the third PMOS transistor Q3, capacitor C2 (one other interface), and resistor R6 (one other interface) are interconnected.One of the interfaces of capacitor C3, one of the interfaces of resistor R7, one of the interfaces of coil L2, one of the interfaces of power switch J3, and the interface IN of the second boost chip U2 are interconnected. Another interface of coil L2 is connected to the interface LX of the second boost chip U2. Another interface of resistor R7 is connected to the interface EN of the second boost chip U2. Interfaces FB, C4, R8, and R9 of the second boost chip U2 are interconnected. Interfaces OUT, C4, R8, and C5 of the second boost chip U2, the power input interface T1 of the peripheral driver module, the power input interface T2 of the intelligent protection module, the power input interface T3 of the expansion module, and the power input interface T4 of the main control MCU module are interconnected.

[0014] The present invention is designed with the following configuration: a battery compatibility unit is configured as a built-in battery J2; a power switch unit is configured as a power switch J3; a reverse connection protection unit is configured to include a second PMOS transistor Q2 and a third PMOS transistor Q3; an external battery compartment unit is configured to include a first PMOS transistor Q1, a Schottky diode D1, a PNP transistor VT1, a resistor R1, a resistor R2, an external battery J1, and a first boost chip U1; and a voltage output unit is configured as a second boost chip U2.

[0015] The technical effects of the above two solutions are: they enable the formation of an intermediate integrated component and enable power supply under the control of the main control MCU module.

[0016] This invention designs a peripheral driver module comprising a fourth PMOS transistor Q4, resistor R10, a fifth PMOS transistor Q5, resistor R11, a sixth PMOS transistor Q6, resistors R12 and R13, a seventh PMOS transistor Q7, resistors R14 and R15. The drain of the fourth PMOS transistor Q4, one interface of resistor R10, the drain of the fifth PMOS transistor Q5, one interface of resistor R11, one interface of resistor R13, the drain of the sixth PMOS transistor Q6, one interface of resistor R15, and the drain of the seventh PMOS transistor Q7 are respectively connected to the power input interface T1 of the peripheral driver module. The gate of the fourth PMOS transistor Q4 is connected to the first image intensifier drive control interface J4. The other interface of resistor R10 and the source of the fourth PMOS transistor Q4 are respectively connected to the control output interface Y1 of the main control MCU module. The gate of the fifth PMOS transistor Q5 is connected to the second image intensifier drive control interface J5. The other interface of resistor R11 and the source of the fifth PMOS transistor Q5 are respectively connected to the control output interface Y2 of the main control MCU module. One port of resistor R12 is connected to the auxiliary lighting interface J6. The other port of resistor R12 is connected to the gate of the sixth PMOS transistor Q6. The other interface of resistor R13 and the source of the sixth PMOS transistor Q6 are respectively connected to the control output interface Y3 of the main control MCU module. One port of resistor R14 is connected to the low battery indicator interface J7. The other port of resistor R14 is connected to the gate of the seventh PMOS transistor Q7. The other interface of resistor R15 and the source of the seventh PMOS transistor Q7 are respectively connected to the control output interface Y4 of the main control MCU module.

[0017] The present invention designs an image intensifier drive control unit comprising a fourth PMOS transistor Q4, a resistor R10, a fifth PMOS transistor Q5, and a resistor R11; an auxiliary lighting unit comprising a sixth PMOS transistor Q6, a resistor R12, and a resistor R13; and a low battery indicator unit comprising a seventh PMOS transistor Q7, a resistor R14, and a resistor R15.

[0018] The technical effects of the above two solutions are: they enable the formation of an intermediate integrated component and enable external driving under the control of the main control MCU module.

[0019] This invention designs an intelligent protection module comprising a resistor R16, a photoresistor LDR1, a capacitor C6, a first Hall sensor U3, a second Hall sensor U4, an attitude sensor U5, resistors R17, R18, and R19, and capacitors C7, C8, C9, and C10. The first Hall sensor U3 has interfaces GND, VOUT, and VDD; the second Hall sensor U4 has interfaces GND, VOUT, and VDD; and the attitude sensor U5 has interfaces EP, CLKIN, NC, AUX-DA, AUX-CL, VLOGIC, ADO, REGOUT, and FSYNC. The following interfaces are connected: SDA, SCL, RESV, CPOUT, GND, and VDD. The power input interface T2 of the intelligent protection module, one port of resistor R16, one port of resistor R18, one port of capacitor C7, the VLOGIC interface of attitude sensor U5, one port of resistor R17, one port of capacitor C8, the FSYNC interface of attitude sensor U5, the negative terminal of capacitor C10, the GND interface of attitude sensor U5, the GND interface of the first Hall sensor U3, the GND interface of the second Hall sensor U4, and the VDD interfaces of the first Hall sensor U3 and the second Hall sensor U4 are configured to be interconnected. Resistor R1... One of the other ports of resistor 6, one of the ports of photoresistor LDR1, one of the ports of capacitor C8, and the monitoring input interface W2 of the main control MCU module are configured to be interconnected. The other ports of photoresistor LDR1 and capacitor C8 are respectively connected to ground. The other port of capacitor C7, the CLKIN interface of attitude sensor U5, and the EP interface of attitude sensor U5 are respectively connected to ground. One of the other ports of resistor R17 is connected to the ADO interface of attitude sensor U5. The other port of capacitor C8 is connected to the REGOUT interface of attitude sensor U5. One of the ports of R18, one of the ports of resistor R19, and the attitude sensor U5 interface are respectively connected to ground. The VDD interface of attitude sensor U5 and the positive terminal of capacitor C10 are connected to each other. One port of capacitor C9 is connected to the CPOUT interface of attitude sensor U5. The other port of capacitor C9, the GND interface of attitude sensor U5, the GND interface of the first Hall sensor U3, and the GND interface of the second Hall sensor U4 are all connected to ground. The other port of resistor R18, the other port of resistor R19, the SDA interface of attitude sensor U5, the SCL interface of attitude sensor U5, and the monitoring input interface W2 of the main control MCU module are connected to each other. The VOUT interface of the first Hall sensor U3 is connected to the monitoring input interface W3 of the main control MCU module.The interface VOUT of the second Hall sensor U4 is configured to connect to the monitoring input interface W4 of the main control MCU module.

[0020] The present invention designs a strong light protection unit 131, which includes a resistor R16, a photoresistor LDR1, and a capacitor C6; a side-flip power-off unit 132, which includes a first Hall sensor U3 and a second Hall sensor U4; and an upward-flip power-off unit 133 and a static power-off and motion wake-up unit 134, which include an attitude sensor U5, resistors R17, R18, and R19, and capacitors C7, C8, C9, and C10.

[0021] The technical effects of the above two solutions are: they enable the formation of an intermediate integrated component and achieve intelligent protection under the control of the main control MCU module.

[0022] The present invention designs an expansion module configured as a rotary potentiometer RP1. The power input interface T3 of the expansion module and the monitoring input interface W6 of the main control MCU module are respectively connected to the sensor level monitoring interface J9. One port of the rotary potentiometer RP1 is connected to the control output interface Y5 of the main control MCU module. The gain power output terminal of the rotary potentiometer RP1 is connected to the image intensifier gain adjustment interface J8. The other port of the rotary potentiometer RP1 is connected to ground.

[0023] The present invention designs an image intensifier gain adjustment unit 141 that includes a rotary potentiometer RP1, and a sensor level monitoring unit 142 that has a sensor level monitoring interface J9.

[0024] The technical effects of the above two solutions are: they enable the formation of an intermediate integrated component and allow for extended settings under the control of the main MCU module.

[0025] This invention designs a main control MCU module as a single-chip microcomputer.

[0026] The technical effect of the above technical solution is that it realizes the formation of an intermediate integrated component and serves as the main control component.

[0027] The present invention is designed such that the power management module, peripheral driver module, and intelligent protection module are distributed with the main control MCU module in a logical processing manner, and the power management module, peripheral driver module, intelligent protection module, and main control MCU module are distributed with the expansion module in an external control manner.

[0028] This invention designs a working method for a configurable low-light night vision device circuit, the steps of which are: the power management module supplies power to the low-light night vision device; the configuration module group performs real-time performance matching of the electronic components of the low-light night vision device; and the main control MCU module performs logic signal processing control between the power management module and the configuration module group, thereby enabling the working state of the low-light night vision device to be under logical program control.

[0029] The technical effect of the above technical solution is that it highlights the technical feature of making the working state of the low-light night vision device under the control of the logic program, and introduces its application in the technical field of working method of configurable low-light night vision device circuit device.

[0030] The present invention is designed with the following steps: When the power switch J3 is turned on, the low-light night vision device circuit system is powered on; when the power switch J3 is turned off, the low-light night vision device circuit system is powered off. This simultaneously controls the power supply to both the external battery J1 and the internal battery J2. For monocular and binocular low-light night vision devices, the internal battery J2 provides power. The voltage rating of the internal battery J2 is set to 3V, 1.5V, and 1.2V. It is connected through the internal battery J2 interface of the low-light night vision device, primarily using a single battery. When the external battery J1 is not connected or is not activated, the internal battery J2 is positively connected, and the drain voltage of the second PMOS transistor Q2 is the battery voltage. Due to the presence of the diode in the second PMOS transistor Q2, the source voltage of the second PMOS transistor Q2 is higher than the gate voltage, and the second PMOS transistor Q2 is in the on state. When the source voltage of PMOS transistor Q3 is equal to the source voltage of the second PMOS transistor Q2, the source voltage of the third PMOS transistor Q3 is higher than its gate voltage, and Q3 is turned on. The internal battery J2 is in the positive connection output state. When the external battery J1 is either connected or not, J2 is reverse-connected, and the drain voltage of the second PMOS transistor Q2 is the negative battery voltage. Due to the presence of the diode in the second PMOS transistor Q2, its source voltage is lower than its gate voltage, and Q2 is turned off. When the source voltage of the third PMOS transistor Q3 is equal to the source voltage of the second PMOS transistor Q2, its source voltage is lower than its gate voltage, and Q3 is turned off. The internal battery J2 is in the reverse connection protection state. For binocular and quad-binocular low-light night vision devices, two compatible power supply methods are used: an internal battery J2 and an external battery J1. The voltage of the external battery J1 is set to 3V and 1.5V, and it is connected through the external battery J1 interface of the low-light night vision device. Four batteries are the main type. When the external battery J1 is not connected or is not turned on, the output voltage of the first boost chip U1 is 0V. After the internal battery J2 is correctly connected, the second PMOS transistor Q2 and the third PMOS transistor Q3 are in the conducting state, and the circuit system is powered by the internal battery J2. At this time, the drain voltage of the first PMOS transistor Q1 is 0V, and the source voltage of the first PMOS transistor Q1 is equal to... With the built-in battery J2 in operation, the gate voltage of the first PMOS transistor Q1 is equal to its source voltage due to the conduction of PNP transistor VT1. Therefore, the first PMOS transistor Q1 is in the off state. Because of the diode in the first PMOS transistor Q1, a short circuit will not occur when the source voltage of the first PMOS transistor Q1 is greater than its drain voltage, preventing current from flowing back from the source to the drain of the first PMOS transistor Q1. When the external battery J1 is connected and turned on, the output voltage of the first boost chip U1 is 3.3V. Regardless of whether the built-in battery J2 is connected in the forward or reverse direction, the second PMOS transistor Q2 and the third PMOS transistor... With transistor Q3 in the off state, the drain voltage of the first PMOS transistor Q1 is equal to the voltage of the external battery J1. Due to the presence of the diode in the first PMOS transistor Q1, the source voltage of the first PMOS transistor Q1 is equal to the voltage of the external battery J1. Since the PNP transistor VT1 is off, the gate voltage of the first PMOS transistor Q1 is 0V. At this time, the source voltage of the first PMOS transistor Q1 is higher than the gate voltage, and the first PMOS transistor Q1 is on. The circuit system is powered by the external battery J1. Regardless of how the voltage of the external battery J1 decreases or how the battery type changes, the output voltage of the first boost chip U1 is always 3.3V. MOSFET Q2 and the third PMOS transistor Q3 remain off to prevent slow discharge of the built-in battery J2 due to incomplete conduction of the second and third PMOS transistors Q2 and Q3. The circuit design of the low-light night vision device must ensure that the voltage output unit provides a stable operating voltage regardless of whether the built-in battery J2 or the external battery J1 is used, and regardless of its charge decay. Given that the image intensifier's operating voltage range is 2.6V to 3.3V, the voltage output value of the voltage output unit is usually set to 3.3V to ensure the stable operation of the core components. The output voltage of the second boost chip U2 is adjusted by a resistor. With resistance The resistance value is achieved by following the formula: in, This is the output voltage of the second boost chip U2. Let R8 be the resistance value. The resistance value of resistor R9 is given, and 1.2 is the reference voltage coefficient. Here, the resistance values ​​of resistors R8 and R9 are chosen to be 360K ohms and 205K ohms, respectively. At this time, the output voltage of the voltage output unit is 3.3V. The number of image intensifiers mounted on the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5 depends on the type of low-light night vision device. For monocular low-light night vision devices, only the first image intensifier drive control interface J4 is connected. For binocular low-light night vision devices, the left and right image intensifiers are connected to the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5, respectively. For tetracular low-light night vision devices, the left and right image intensifier groups are connected to the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5, respectively. When the image intensifier meets the activation conditions, the voltages of the control output interfaces Y1 and Y2 of the main control MCU module are pulled low, and the gate voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are 0V. The source voltage of PMOS transistor Q4 and the source voltage of PMOS transistor Q5 are both 3.3V. Since the source voltages of PMOS transistors Q4 and Q5 are higher than their gate voltages, both PMOS transistors Q4 and Q5 are in the ON state. The drain voltages of PMOS transistors Q4 and Q5 are also both 3.3V, indicating the image intensifier is in the OFF state. When the image intensifier does not meet the OFF conditions, the voltages of the control output interfaces Y1 and Y2 of the main control MCU module are pulled high. At this time, the gate and source voltages of PMOS transistors Q4 and Q5 are both 3.3V, and the source voltages of PMOS transistors Q4 and Q5 are equal to their gate voltages, indicating both PMOS transistors Q4 and Q5 are in the OFF state. The drain voltages of PMOS transistors Q4 and Q5 are both 0V, indicating the image intensifier is in the OFF state. When the auxiliary lighting is turned on, the voltage of the control output interface Y3 of the main control MCU module is pulled low. At this time, the gate voltage of the sixth PMOS transistor Q6 is 0V, the source voltage of the sixth PMOS transistor Q6 is 3.3V, the source voltage of the sixth PMOS transistor Q6 is higher than the gate voltage, the sixth PMOS transistor Q6 is in the on state, and the drain voltage of the sixth PMOS transistor Q6 is 3.3V, the auxiliary lighting is on. When the auxiliary lighting is turned off, the voltage of the control output interface Y3 of the main control MCU module is pulled high. At this time, the gate and source voltages of the sixth PMOS transistor Q6 are both 3V.With the source voltage of the sixth PMOS transistor Q6 equal to its gate voltage (3.3V), Q6 is in a non-conducting state. Its drain voltage is 0V, turning off the auxiliary lighting. When the low battery indicator light turns on, the voltage at the control output interface Y4 of the main MCU module is pulled low. At this time, the gate voltage of the seventh PMOS transistor Q7 is 0V, and its source voltage is 3.3V. Since the source voltage of Q7 is higher than its gate voltage, Q7 is in a conducting state. Its drain voltage is 3.3V, and the low battery indicator light illuminates. When the low battery indicator light is off, the voltage of the control output interface Y4 of the main control MCU module is pulled high. At this time, the gate and source voltages of the seventh PMOS transistor Q7 are both 3.3V, and the source voltage of the seventh PMOS transistor Q7 is equal to the gate voltage, so the seventh PMOS transistor Q7 is in a non-conducting state. The drain voltage of the seventh PMOS transistor Q7 is 0V, and the low battery indicator light is off. If the photosensitive material of the image intensifier is exposed to strong light for a long time, its sensitivity will decrease sharply due to fatigue, thus losing its amplification function for weak light and losing its night vision capability. Therefore, strong light protection is implemented for the image intensifier. The specific relationship between light intensity and image intensifier state switching is as follows: when the light intensity is less than 10 lux, the image intensifier is turned on; when the light intensity is greater than or equal to 10 lux, the image intensifier is turned off. The voltage at the monitoring input interface W2 of the main control MCU module is the voltage division value of photoresistor LDR1 and resistor 16, and follows the formula below: in, The voltage at the voltage monitoring terminal of the photoresistor LDR1 is... The resistance value of photoresistor LDR1 is... Here is the resistance value of resistor R16, and 3.3 is the voltage divider factor. As the light intensity increases, the resistance of the photoresistor LDR1 gradually decreases, and the voltage at the voltage monitoring terminal gradually increases, eventually exceeding the voltage value corresponding to the light intensity threshold. The low-light night vision device triggers its high-light protection function, and the voltages at the control output interfaces Y1 and Y2 of the main control MCU module are pulled high, turning off the image intensifier. Conversely, as the light intensity decreases, the resistance of the photoresistor LDR1 gradually increases, and the voltage at the voltage monitoring terminal gradually decreases, eventually falling below the voltage value corresponding to the light intensity threshold. The low-light night vision device does not trigger its high-light protection function, and the voltages at the control output interfaces Y1 and Y2 of the main control MCU module are pulled low, turning on the image intensifier. The side-flip power-off unit 132 is commonly used in binocular and quad-lens low-light night vision devices. When the left observation system tilts, the left image intensifier group is powered off, while the right image intensifier group operates normally. Conversely, when the right observation system tilts, the right image intensifier group is powered off, while the left image intensifier group operates normally. When both the left and right observation systems tilt simultaneously, the first Hall sensor U3 and the second Hall sensor U4 move away from the magnet on the middle bridge. The voltages at monitoring input interfaces W3 and W4 of the main control MCU module are pulled high, triggering the tilt-off power-off function on both sides. The voltages at control output interfaces Y1 and Y2 of the main control MCU module are also pulled high, shutting down both left and right image intensifier groups. When the left observation system tilts but the right observation system does not tilt, the first Hall sensor U3 moves away from the magnet on the middle bridge. When the second Hall sensor U4 is close to the magnet on the middle bridge, the voltage of the monitoring input interface W3 of the main control MCU module is pulled high and the voltage of the monitoring input interface W4 of the main control MCU module is pulled low, triggering the side-tilt power-off function on the left side. The side-tilt power-off function is not triggered on the right side. The voltage of the control output interface Y1 of the main control MCU module is pulled high and the voltage of the control output interface Y2 of the main control MCU module is pulled low, turning off the left image intensifier group and turning on the right image intensifier group. When the left observation system does not tilt and the right observation system tilts, the first Hall sensor U3 is close to the magnet on the middle bridge, and the second Hall sensor U4 is away from the magnet on the middle bridge. The voltage of the monitoring input interface W3 of the main control MCU module is pulled low, and the voltage of the main control MCU module... When the voltage of monitoring input interface W4 is pulled high, the side tilt power-off function is not triggered on the left side, but it is triggered on the right side. The voltage of control output interface Y1 of the main control MCU module is pulled low, and the voltage of control output interface Y2 of the main control MCU module is pulled high. The left image intensifier group is turned on, and the right image intensifier group is turned off. When neither the left nor right observation system tilts, the first Hall sensor U3 and the second Hall sensor U4 are close to the magnet on the middle bridge. The voltages of monitoring input interfaces W3 and W4 of the main control MCU module are pulled low, and the side tilt power-off function is not triggered on either side. The voltages of control output interfaces Y1 and Y2 of the main control MCU module are pulled low, and both left and right image intensifier groups are turned on.The flip-up power-off, static power-off, and motion wake-up functions of the low-light night vision device all rely on triaxial acceleration and triaxial angular velocity data acquired from the attitude sensor U5. Based on a Kalman filter algorithm, the acquired attitude data is fused to calculate the pitch and roll angles at the current attitude, limiting them to the range of -180° to 180°. This serves as the basis for determining flip-up power-off, static power-off, and motion wake-up. The low-light night vision device triggers the flip-up power-off function when the pitch angle is between -180° and 135° or between 90° and 180°. The control output interface of the main control MCU module... When the voltages of Y1 and control output interface Y2 are pulled high, the image intensifier is turned off. The low-light night vision device does not trigger the flip-up power-off function when the pitch angle is between -135° and 90°. When the voltages of the control output interfaces Y1 and Y2 of the main control MCU module are pulled low, the image intensifier is turned on. The monitoring input interface W5 of the main control MCU module samples the attitude sensor U5 400 times every three minutes. If the range of both the pitch angle and roll angle is less than 2°, the low-light night vision device triggers the static power-off function. When the voltages of control output interfaces Y2, Y3, Y4, and Y5 are pulled high, all peripherals are turned off. The monitoring input interface W5 of the main control MCU module samples the attitude sensor U5 400 times every five minutes. If the range of the pitch or roll angle is not less than 2°, the low-light night vision device does not trigger the static power-off function, and all peripherals operate normally. After the low-light night vision device enters the static power-off state, the monitoring input interface W5 of the main control MCU module samples the attitude sensor U5 50 times every 1.5 seconds. If the range of the pitch or roll angle is not less than 2°, the low-light night vision device does not trigger the static power-off function. If the range of pitch or roll angles is greater than 2°, the low-light night vision device triggers the motion wake-up function, and all peripherals resume normal operation. After the low-light night vision device enters the static power-off state, the monitoring input interface W5 of the main control MCU module samples the attitude sensor U5 20 times every 1.5 seconds. If the range of pitch and roll angles is not greater than 2°, the low-light night vision device does not trigger the motion wake-up function, and all peripherals remain off. The image intensifier gain adjustment function must meet two conditions: first, the image intensifier is a gain-adjustable type; second, the image intensifier is in the on state. Meeting the above conditions, the brightness of the image intensifier can be controlled by adjusting the output voltage of the rotary potentiometer RP1. A higher output voltage of RP1 results in a brighter image intensifier, while a lower output voltage results in a dimmer image intensifier. When RP1 is slid to the left, the voltage at the J8 terminal of the image intensifier gain adjustment interface decreases, and the image intensifier gradually dims. When RP1 is slid to the right, the voltage at the J8 terminal of the image intensifier gain adjustment interface increases, and the image intensifier gradually brightens. The sensor level monitoring unit 142 is typically adapted for Hall effect flip-up power-off monitoring, key input, and other functions. It mainly monitors the digital values ​​of the connected sensors and is an expansion interface reserved for low-light night vision devices. When the level of the connected extended sensor changes...The voltage of the monitoring input interface W6 of the main control MCU module is pulled low or high, and the operator can set the corresponding code instructions according to different personalized functions, which has a high degree of configurability.

[0031] The technical effect of the above solution is that it enables matching circuit operation with various low-light night vision devices.

[0032] The technical advantages of this application are as follows: The configurable low-light night vision device circuit system based on low-power multi-functional control provided by this invention includes a power management module, a peripheral driver module, an intelligent protection module, an expansion module, and a main control MCU module. It is applicable to various low-light night vision products such as monocular, monocular, binocular, binocular, and quad-binocular devices. At the same time, it has the characteristics of low-power multi-functional control, solving the problems of low universality, lack of functions, difficulty in porting, and poor configurability of current low-light night vision device circuit systems.

[0033] In this technical solution, the operation of the low-light night vision device is controlled by a logic program, which is implemented by the main control MCU module.

[0034] In this technical solution, the power management module, main control MCU module, and configuration module group that enable the low-light night vision device to operate under logical program control are important technical features. In the technical field of configurable low-light night vision device circuit devices and operating methods, this solution is novel, inventive, and practical. The terminology used in this technical solution can be explained and understood using patent literature in this technical field. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a structural block diagram of one of the first embodiments of a configurable low-light night vision device circuit according to the present invention. Figure 2 This is a circuit diagram of the power management module 11 of the present invention. Figure 3 This is a circuit diagram of the peripheral driver module 12 of the present invention. Figure 4 This is a circuit diagram of the intelligent protection module 13 of the present invention. Figure 5 This is a circuit diagram of the extension module 14 of the present invention. Power Management Module-11, Peripheral Driver Module-12, Intelligent Protection Module-13, Expansion Module-14, Main Control MCU Module-15. Detailed Implementation

[0037] According to the examination guidelines, terms such as “having,” “comprising,” and “including” used in this invention should be understood to mean without dispensing the presence or addition of one or more other elements or combinations thereof.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following embodiments are commercially available. Unless otherwise specified, please make improvements according to conventional methods in the art.

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] A configurable low-light night vision device circuitry. Figure 1As one of the first embodiments of the present invention, this embodiment is described in detail with reference to the accompanying drawings. It includes a power management module 11, a peripheral driver module 12, an intelligent protection module 13, an expansion module 14, and a main control MCU module 15. The power output interface of the power management module 11 is respectively configured to connect to the power input interface T1 of the peripheral driver module 12, the power input interface T2 of the intelligent protection module 13, the power input interface T3 of the expansion module 14, and the power input interface T4 of the main control MCU module 15. The monitoring input interface W1 of the main control MCU module 15 is configured to connect to the power supply... The monitoring input interfaces W2, W3, W4, and W5 of the main control MCU module 15 are respectively connected to the intelligent protection module 13. The monitoring input interface W6 of the main control MCU module 15 is connected to the expansion module 14. The control output interfaces Y1, Y2, Y3, and Y4 of the main control MCU module 15 are connected to the peripheral driver module 12. The control output interface Y5 of the main control MCU module 15 is connected to the expansion module 14.

[0043] The second embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, the power management module 11 is configured to include a first PMOS transistor Q1, a Schottky diode D1, a PNP transistor VT1, resistors R1 and R2, a second PMOS transistor Q2, a third PMOS transistor Q3, an external battery J1, an internal battery J2, a coil L1, a resistor R3, a first boost converter chip U1, a capacitor C1, a resistor R4, a resistor R5, a capacitor C2, a resistor R6, a capacitor C3, a resistor R7, a second boost converter chip U2, a coil L2, a power switch J3, a capacitor C4, a resistor R8, a resistor R9, and a capacitor C5. The first boost chip U1 and the second boost chip U2 are respectively provided with interface LX, interface IN, interface EN, interface OUT, interface FB and interface GND. One interface of power switch J3, the gate of third PMOS transistor Q3, the emitter of PNP transistor VT1, and the drain of first PMOS transistor Q1 are connected to the monitoring input interface W1 of the main control MCU module 15. The collector of PNP transistor VT1, the source of first PMOS transistor Q1, and one interface of resistor R2 are interconnected. The base of PNP transistor VT1, one interface of resistor R1, and the cathode of Schottky diode D1 are interconnected. The other interfaces of resistor R2 and resistor R1 are connected to ground. The gate of first PMOS transistor Q1, the anode of Schottky diode D1, one interface of external battery J1, one interface of coil L1, the interface IN of first boost chip U1, and one interface of resistor R3 are interconnected. One of the interfaces of the external battery J1 and the other of the internal battery J2 are respectively connected to ground. One of the interfaces of the internal battery J2 is connected to the gate of the second PMOS transistor Q2. One of the interfaces of the coil L1 is connected to the interface LX of the first boost chip U1. One of the interfaces of the resistor R3 is connected to the interface EN of the first boost chip U1. The interfaces GND of the first boost chip U1, one of the interfaces of the resistor R5, one of the interfaces of the capacitor C2, one of the interfaces of the resistor R6, one of the interfaces of the capacitor C3, the interface GND of the second boost chip U2, one of the interfaces of the resistor R9, and one of the interfaces of the capacitor C5 are respectively connected to ground. The interface FB of the first boost converter chip U1, one of the interfaces of resistor R5, the other interface of capacitor C1, and the other interface of resistor R4 are configured to be interconnected. The interface OUT of the first boost converter chip U1, one of the interfaces of capacitor C1, one of the interfaces of resistor R4, the source of the second PMOS transistor Q2, the source of the third PMOS transistor Q3, one of the interfaces of capacitor C2, and one of the interfaces of resistor R6 are configured to be interconnected. One of the terminals of capacitor C3, one of the terminals of resistor R7, one of the terminals of coil L2, another terminal of power switch J3, and the IN terminal of the second boost chip U2 are connected to each other. The other terminal of coil L2 is connected to the LX terminal of the second boost chip U2, and the other terminal of resistor R7 is connected to the EN terminal of the second boost chip U2. The interfaces FB of the second boost chip U2, one of the interfaces of capacitor C4, one of the interfaces of resistor R8, and one of the interfaces of resistor R9 are configured to be interconnected. The interfaces OUT of the second boost chip U2, one of the interfaces of capacitor C4, one of the interfaces of resistor R8, one of the interfaces of capacitor C5, the power input interface T1 of the peripheral driver module 12, the power input interface T2 of the intelligent protection module 13, the power input interface T3 of the expansion module 14, and the power input interface T4 of the main control MCU module 15 are configured to be interconnected.

[0044] The power management module 11 forms a supporting connection point for the peripheral driver module 12, the intelligent protection module 13, the expansion module 14, and the main control MCU module 15. The power management module 11 realizes the connection with the peripheral driver module 12, the intelligent protection module 13, the expansion module 14, and the main control MCU module 15. Its technical purpose is to serve as a component that supplies power to the peripheral driver module 12, the intelligent protection module 13, the expansion module 14, and the main control MCU module 15.

[0045] In this embodiment, the battery compatibility unit 111 is configured as a built-in battery J2, the power switch unit 112 is configured as a power switch J3, the reverse connection protection unit 113 is configured to include a second PMOS transistor Q2 and a third PMOS transistor Q3, the external battery compartment unit 114 is configured to include a first PMOS transistor Q1, a Schottky diode D1, a PNP transistor VT1, a resistor R1, a resistor R2, an external battery J1, and a first boost chip U1, and the voltage output unit 115 is configured as a second boost chip U2.

[0046] Its technical objective is to provide stable voltage power to the peripheral driver module 12, intelligent protection module 13, expansion module 14 and main control MCU module 15.

[0047] In this embodiment, the peripheral driver module 12 is configured to include a fourth PMOS transistor Q4, a resistor R10, a fifth PMOS transistor Q5, a resistor R11, a sixth PMOS transistor Q6, a resistor R12, a resistor R13, a seventh PMOS transistor Q7, a resistor R14, and a resistor R15. The drain of the fourth PMOS transistor Q4, one of the interfaces of resistor R10, the drain of the fifth PMOS transistor Q5, one of the interfaces of resistor R11 and resistor R13, the drain of the sixth PMOS transistor Q6, one of the interfaces of resistor R15, and the drain of the seventh PMOS transistor Q7 are respectively connected to the power input interface T1 of the peripheral driver module 12. The gate of the fourth PMOS transistor Q4 is connected to the first image intensifier drive control interface J4, and the other interface of resistor R10 and the source of the fourth PMOS transistor Q4 are respectively connected to the control output interface Y1 of the main control MCU module 15. The gate of the fifth PMOS transistor Q5 is connected to the second image intensifier drive control interface J5, and the other interface of resistor R11 and the source of the fifth PMOS transistor Q5 are respectively connected to the control output interface Y2 of the main control MCU module 15. One port of resistor R12 is connected to the auxiliary lighting interface J6, and the other port of resistor R12 is connected to the gate of the sixth PMOS transistor Q6. The other port of resistor R13 and the source of the sixth PMOS transistor Q6 are respectively connected to the control output interface Y3 of the main control MCU module 15. One of the ports of resistor R14 is connected to the low battery indicator interface J7, and the other port of resistor R14 is connected to the gate of the seventh PMOS transistor Q7. The other port of resistor R15 and the source of the seventh PMOS transistor Q7 are respectively connected to the control output interface Y4 of the main control MCU module 15.

[0048] The peripheral driver module 12 forms a supporting connection point for the power management module 11 and the main control MCU module 15. The peripheral driver module 12 realizes the connection with the power management module 11 and the main control MCU module 15. Its technical purpose is to serve as a component for driving the first image intensifier drive control interface J4, the second image intensifier drive control interface J5, the auxiliary lighting interface J6, and the low battery warning interface J7.

[0049] In this embodiment, the image intensifier drive control unit 121 is configured to include a fourth PMOS transistor Q4, a resistor R10, a fifth PMOS transistor Q5, and a resistor R11; the auxiliary lighting unit 122 is configured to include a sixth PMOS transistor Q6, a resistor R12, and a resistor R13; and the low battery indicator unit 123 is configured to include a seventh PMOS transistor Q7, a resistor R14, and a resistor R15.

[0050] Its technical purpose is to be used as a variable voltage driving interface for the first image intensifier drive control interface J4, the second image intensifier drive control interface J5, the auxiliary lighting interface J6, and the low battery indicator interface J7.

[0051] In this embodiment, the intelligent protection module 13 is configured to include a resistor R16, a photoresistor LDR1, a capacitor C6, a first Hall sensor U3, a second Hall sensor U4, an attitude sensor U5, resistors R17, R18, and R19, and capacitors C7, C8, C9, and C10. The first Hall sensor U3 is equipped with interfaces GND, VOUT, and VDD; the second Hall sensor U4 is equipped with interfaces GND, VOUT, and VDD; and the attitude sensor U5 is equipped with interfaces EP, CLKIN, NC, AUX-DA, AUX-CL, VLOGIC, ADO, REGOUT, FSYNC, SDA, SCL, RESV, CPOUT, GND, and VDD. The power input interface T2 of the intelligent protection module 13, one port of resistor R16, one port of resistor R18, one port of capacitor C7, the VLOGIC interface of attitude sensor U5, one port of resistor R17, one port of capacitor C8, the FSYNC interface of attitude sensor U5, the negative terminal of capacitor C10, the GND interface of attitude sensor U5, the GND interface of the first Hall sensor U3, the GND interface of the second Hall sensor U4, the VDD interface of the first Hall sensor U3, and the VDD interface of the second Hall sensor U4 are configured to be interconnected. One of the ports of resistor R16, one of the ports of photoresistor LDR1, one of the ports of capacitor C8, and the monitoring input interface W2 of the main control MCU module 15 are configured to be interconnected. The other ports of photoresistor LDR1 and capacitor C8 are configured to be connected to ground. One of the other ports of capacitor C7, the CLKIN interface of attitude sensor U5, and the EP interface of attitude sensor U5 are respectively connected to ground. One of the other ports of resistor R17 is connected to the ADO interface of attitude sensor U5. One of the other ports of capacitor C8 is connected to the REGOUT interface of attitude sensor U5. One port of R18, one port of resistor R19, the VDD interface of attitude sensor U5, and the positive terminal of capacitor C10 are interconnected. One port of capacitor C9 is connected to the CPOUT interface of attitude sensor U5. The other port of capacitor C9... The interfaces GND of attitude sensor U5, first Hall sensor U3, and second Hall sensor U4 are respectively connected to ground. One other port of R18, one other port of resistor R19, interface SDA of attitude sensor U5, interface SCL of attitude sensor U5, and monitoring input interface W2 of main control MCU module 15 are interconnected. The interface VOUT of first Hall sensor U3 is connected to monitoring input interface W3 of main control MCU module 15, and the interface VOUT of second Hall sensor U4 is connected to monitoring input interface W4 of main control MCU module 15.

[0052] The intelligent protection module 13 forms a supporting connection point for the power management module 11 and the main control MCU module 15. The intelligent protection module 13 realizes the connection with the power management module 11 and the main control MCU module 15. Its technical purpose is to be used as a component to control the strong light protection unit 131, the side-flip power-off unit 132, the upward-flip power-off unit 133, and the static power-off and motion wake-up unit 134.

[0053] In this embodiment, the strong light protection unit 131 is configured to include a resistor R16, a photoresistor LDR1, and a capacitor C6; the side-flip power-off unit 132 is configured to include a first Hall sensor U3 and a second Hall sensor U4; and the upward-flip power-off unit 133 and the static power-off and motion wake-up unit 134 are configured to include an attitude sensor U5, resistors R17, R18, and R19, and capacitors C7, C8, C9, and C10.

[0054] Its technical objective is to achieve variable voltage control of the high-intensity light protection unit 131, the side-flip power-off unit 132, the upward-flip power-off unit 133, and the static power-off and motion wake-up unit 134.

[0055] In this embodiment, the expansion module 14 is configured as a rotary potentiometer RP1. The power input interface T3 of the expansion module 14 and the monitoring input interface W6 of the main control MCU module 15 are respectively configured to be connected to the sensor level monitoring interface J9. One port of the rotary potentiometer RP1 is configured to be connected to the control output interface Y5 of the main control MCU module 15. The gain power output terminal of the rotary potentiometer RP1 is configured to be connected to the image intensifier gain adjustment interface J8. The other port of the rotary potentiometer RP1 is configured to be connected to ground.

[0056] The expansion module 14 forms a support connection point for the power management module 11 and the main control MCU module 15. The expansion module 14 realizes the connection with the power management module 11 and the main control MCU module 15. Its technical purpose is to be used as a component for controlling the image intensifier gain adjustment unit 141 and the sensor level monitoring unit 142.

[0057] In this embodiment, the image intensifier gain adjustment unit 141 is configured to include a rotary potentiometer RP1, and the sensor level monitoring unit 142 is configured to have a sensor level monitoring interface J9.

[0058] Its technical objective is to achieve variable voltage value control of the image intensifier gain adjustment unit 141 and the sensor level monitoring unit 142.

[0059] In this embodiment, the main control MCU module 15 is configured as a single-chip microcomputer.

[0060] The main control MCU module 15 forms a supporting connection point for the power management module 11, peripheral driver module 12, intelligent protection module 13, and expansion module 14. The main control MCU module 15 realizes the connection with the power management module 11, the peripheral driver module 12, the intelligent protection module 13, and the expansion module 14. Its technical purpose is to serve as a component for logic control and signal processing of the power management module 11, peripheral driver module 12, intelligent protection module 13, and expansion module 14.

[0061] In this embodiment, the power management module 11, peripheral driver module 12, and intelligent protection module 13 are distributed with the main control MCU module 15 in a logical processing manner, and the power management module 11, peripheral driver module 12, intelligent protection module 13, and main control MCU module 15 are distributed with the expansion module 14 in an external control manner.

[0062] The present invention will be further described below with reference to embodiments. These embodiments are intended to illustrate the present invention and not to further limit the present invention.

[0063] A method for operating a configurable low-light night vision device circuit includes the following steps: when power switch J3 is turned on, the low-light night vision device circuit system is powered on; when power switch J3 is turned off, the low-light night vision device circuit system is powered off. This simultaneously controls the power supply to both the external battery J1 and the internal battery J2. For monocular and binocular low-light night vision devices, power is supplied by the built-in battery J2. The voltage rating of the built-in battery J2 is 3V, 1.5V, and 1.2V. It is connected through the built-in battery interface J2 of the low-light night vision device, primarily using a single battery. When the external battery J1 is not connected or is connected but not activated, the internal battery J2 is positively connected. The drain voltage of the second PMOS transistor Q2 is the battery voltage. Due to the presence of the diode in the second PMOS transistor Q2, the source voltage of Q2 is higher than the gate voltage, and Q2 is in the ON state. The source voltage of the third PMOS transistor Q3 is equal to the source voltage of the second PMOS transistor Q2. At this time, the source voltage of Q3 is higher than the gate voltage, and Q3 is in the ON state. The internal battery J2 is in the positively connected output state. When the external battery J1 is connected or disconnected, the internal battery J2 is reverse-connected. The drain voltage of the second PMOS transistor Q2 is the negative battery voltage. Due to the presence of the diode in the second PMOS transistor Q2, the source voltage of the second PMOS transistor Q2 is lower than the gate voltage, and the second PMOS transistor Q2 is in the off state. The source voltage of the third PMOS transistor Q3 is equal to the source voltage of the second PMOS transistor Q2. At this time, the source voltage of the third PMOS transistor Q3 is lower than the gate voltage, and the third PMOS transistor Q3 is in the off state. The internal battery J2 is in reverse connection protection mode. For binocular and quad binocular low-light night vision devices, two compatible power supply methods are available: built-in battery J2 and external battery J1. The external battery J1 is set to 3V and 1.5V and is connected through the external battery J1 interface of the low-light night vision device. Four batteries are the primary power supply. When the external battery J1 is not connected or is not activated, the output voltage of the first boost chip U1 is 0V. After the internal battery J2 is correctly connected, the second PMOS transistor Q2 and the third PMOS transistor Q3 are in the conducting state, and the circuit system is powered by the internal battery J2. At this time, the drain voltage of the first PMOS transistor Q1 is 0V, and the source voltage of the first PMOS transistor Q1 is equal to the voltage of the internal battery J2. Since the PNP transistor VT1 is turned on, the gate voltage of the first PMOS transistor Q1 is equal to the source voltage, and the first PMOS transistor Q1 is in the cutoff state. Due to the presence of the diode in the first PMOS transistor Q1, a short circuit will not occur when the source voltage of the first PMOS transistor Q1 is greater than the drain voltage, thus preventing current from flowing back from the source of the first PMOS transistor Q1 to the drain of the first PMOS transistor Q1. When the external battery J1 is connected and turned on, the output voltage of the first boost chip U1 is 3.3V. Regardless of whether the internal battery J2 is connected in the forward or reverse direction, the second PMOS transistor Q2 and the third PMOS transistor Q3 are in the off state. The drain voltage of the first PMOS transistor Q1 is equal to the voltage of the external battery J1. Due to the presence of the diode in the first PMOS transistor Q1, the source voltage of the first PMOS transistor Q1 is equal to the voltage of the external battery J1. Since the PNP transistor VT1 is off, the gate voltage of the first PMOS transistor Q1 is 0V. At this time, the source voltage of the first PMOS transistor Q1 is higher than the gate voltage, and the first PMOS transistor Q1 is turned on. The circuit system is powered by the external battery J1. Regardless of how the voltage of the external battery J1 decreases or how the battery type changes, the output voltage of the first boost chip U1 remains 3.3V. The second PMOS transistors Q2 and Q3 remain off, avoiding the slow discharge of the internal battery J2 due to the incomplete conduction of the second and third PMOS transistors Q2 and Q3. The circuit design of the low-light night vision device must ensure that the voltage output unit 115 provides a stable operating voltage regardless of whether the built-in battery J2 or the external battery J1 is used, and regardless of how much its power decreases. Given that the image intensifier's operating voltage range is 2.6V to 3.3V, the voltage output value of the voltage output unit 115 is typically set to 3.3V to ensure the stable operation of the core components. The output voltage of the second boost chip U2 is adjusted by a resistor... With resistance The resistance value is achieved by following the formula: in, This is the output voltage of the second boost chip U2. Let R8 be the resistance value. Here, R8 and R9 are chosen to have resistance values ​​of 360K ohms and 205K ohms respectively, and the output voltage of voltage output unit 115 is 3.3V. The number of image intensifiers connected to the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5 depends on the type of low-light night vision device. For monocular low-light night vision devices, only the first image intensifier drive control interface J4 is connected. For binocular low-light night vision devices, the left and right image intensifiers are connected to the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5 respectively. For tetracular low-light night vision devices, the left and right image intensifier groups are connected to the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5 respectively. When the image intensifier meets the activation conditions, the voltages of the control output interfaces Y1 and Y2 of the main control MCU module 15 are pulled low. The gate voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are 0V, and the source voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are 3.3V. Since the source voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are higher than the gate voltages, the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are in the on state. The drain voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are 3.3V, and the image intensifier is in the startup state. When the image intensifier does not meet the turn-on conditions, the voltages of the control output interfaces Y1 and Y2 of the main control MCU module 15 are pulled high. At this time, the gate and source voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are both 3.3V, and the source voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are equal to the gate voltage. Therefore, the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are in a non-conducting state, and the drain voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are 0V. The image intensifier is in a turned-off state. When the auxiliary lighting is turned on, the voltage of the control output interface Y3 of the main control MCU module 15 is pulled low. At this time, the gate voltage of the sixth PMOS transistor Q6 is 0V, the source voltage of the sixth PMOS transistor Q6 is 3.3V, the source voltage of the sixth PMOS transistor Q6 is higher than the gate voltage, the sixth PMOS transistor Q6 is in the on state, the drain voltage of the sixth PMOS transistor Q6 is 3.3V, and the auxiliary lighting is on. When the auxiliary lighting is off, the voltage of the control output interface Y3 of the main control MCU module 15 is pulled high. At this time, the gate and source voltages of the sixth PMOS transistor Q6 are both 3.3V, the source voltage of the sixth PMOS transistor Q6 is equal to the gate voltage, the sixth PMOS transistor Q6 is in a non-conducting state, and the drain voltage of the sixth PMOS transistor Q6 is 0V, thus the auxiliary lighting is off. When the low battery indicator light is on, the voltage of the control output interface Y4 of the main control MCU module 15 is pulled low. At this time, the gate voltage of the seventh PMOS transistor Q7 is 0V, the source voltage of the seventh PMOS transistor Q7 is 3.3V, and the source voltage of the seventh PMOS transistor Q7 is higher than the gate voltage, so the seventh PMOS transistor Q7 is in the on state. The drain voltage of the seventh PMOS transistor Q7 is 3.3V, and the low battery indicator light illuminates. When the low battery indicator light is off, the voltage of the control output interface Y4 of the main control MCU module 15 is pulled high. At this time, the gate and source voltages of the seventh PMOS transistor Q7 are both 3.3V, the source voltage of the seventh PMOS transistor Q7 is equal to the gate voltage, the seventh PMOS transistor Q7 is in a non-conducting state, the drain voltage of the seventh PMOS transistor Q7 is 0V, and the low battery indicator light is off. If the photosensitive material of an image intensifier is exposed to strong light for a prolonged period, its sensitivity will decrease sharply due to fatigue, thus losing its ability to amplify weak light and its night vision capability. Therefore, strong light protection is implemented for the image intensifier. The specific relationship between light intensity and image intensifier status switching is as follows: the image intensifier is on when the light intensity is less than 10 lux; the image intensifier is off when the light intensity is greater than or equal to 10 lux. The voltage at the monitoring input interface W2 of the main control MCU module 15 is the voltage division value of the photoresistor LDR1 and the resistor 16, and follows the formula below: in, The voltage at the voltage monitoring terminal of the photoresistor LDR1 is... The resistance value of photoresistor LDR1 is... The resistance of resistor R16 is given, and 3.3 is the voltage divider coefficient. As the light intensity increases, the resistance of photoresistor LDR1 gradually decreases, and the voltage value at the voltage monitoring terminal gradually increases. This eventually exceeds the voltage value corresponding to the light intensity threshold, triggering the high-light protection function of the low-light night vision device. The voltages at control output interfaces Y1 and Y2 of the main control MCU module 15 are pulled high, and the image intensifier is turned off. Conversely, as the light intensity decreases, the resistance of photoresistor LDR1 gradually increases, and the voltage value at the voltage monitoring terminal gradually decreases. This eventually falls below the voltage value corresponding to the light intensity threshold, and the low-light night vision device does not trigger the high-light protection function. The voltages at control output interfaces Y1 and Y2 of the main control MCU module 15 are pulled low, and the image intensifier is turned on. The tilt-over power-off unit 132 is commonly used in binocular and quad-lens low-light night vision devices. When the left observation system tilts, the left image intensifier group is powered off, while the right image intensifier group operates normally. Conversely, when the right observation system tilts, the right image intensifier group is powered off, while the left image intensifier group operates normally. When the left and right observation systems simultaneously tilt, the first Hall sensor U3 and the second Hall sensor U4 move away from the magnet on the middle bridge. The voltages of the monitoring input interfaces W3 and W4 of the main control MCU module 15 are pulled high, triggering the tilt power-off function on both sides. The voltages of the control output interfaces Y1 and Y2 of the main control MCU module 15 are also pulled high, shutting down both left and right side image intensifier groups. When the left observation system tilts while the right observation system does not, the first Hall sensor U3 moves away from the magnet on the middle bridge, and the second Hall sensor U4 moves closer to the magnet on the middle bridge. The voltage at the monitoring input interface W3 of the main control MCU module 15 is pulled high, and the voltage at the monitoring input interface W4 of the main control MCU module 15 is pulled low. The left side triggers the tilt-off power-off function, while the right side does not. The voltage at the control output interface Y1 of the main control MCU module 15 is pulled high, and the voltage at the control output interface Y2 of the main control MCU module 15 is pulled low. The left image intensifier group is turned off, and the right image intensifier group is turned on. When the left observation system does not tilt and the right observation system tilts, the first Hall sensor U3 approaches the magnet on the middle bridge, and the second Hall sensor U4 moves away from the magnet on the middle bridge. The voltage of the monitoring input interface W3 of the main control MCU module 15 is pulled low, and the voltage of the monitoring input interface W4 of the main control MCU module 15 is pulled high. The tilt power-off function is not triggered on the left side, but it is triggered on the right side. The voltage of the control output interface Y1 of the main control MCU module 15 is pulled low, and the voltage of the control output interface Y2 of the main control MCU module 15 is pulled high. The left image intensifier group is turned on, and the left image intensifier group is turned off. When neither the left nor right observation system tilts, the first Hall sensor U3 and the second Hall sensor U4 are close to the magnet on the middle bridge. The voltages of the monitoring input interfaces W3 and W4 of the main control MCU module 15 are pulled low, and the tilt power-off function is not triggered on either side. The voltages of the control output interfaces Y1 and Y2 of the main control MCU module 15 are pulled low, and both left and right side image intensifier groups are turned on. The low-light night vision device's flip-up power-off, static power-off, and motion wake-up functions all rely on triaxial acceleration and triaxial angular velocity data acquired from the attitude sensor U5. Based on a Kalman filter algorithm, the acquired attitude data is fused to calculate the pitch and roll angles in the current attitude, limiting them to the range of -180° to 180°. This serves as the basis for determining flip-up power-off, static power-off, and motion wake-up. When the low-light night vision device triggers the upward power-off function at a pitch angle between -180° and 135° or between 90° and 180°, the voltages at control output interfaces Y1 and Y2 of the main control MCU module 15 are pulled high, and the image intensifier is turned off. When the low-light night vision device's pitch angle is between -135° and 90°, the upward power-off function is not triggered. The voltages at control output interfaces Y1 and Y2 of the main control MCU module 15 are pulled low, activating the image intensifier. The monitoring input interface W5 of the main control MCU module 15 samples the attitude sensor U5 400 times every three minutes. If the range of both the pitch angle and roll angle is less than 2°, the low-light night vision device triggers the static power-off function. The voltages of the control output interfaces Y1, Y2, Y3, Y4, and Y5 of the main control MCU module 15 are pulled high, and all peripherals are turned off. The monitoring input interface W5 of the main control MCU module 15 samples the attitude sensor U5 400 times every five minutes. If the range of the collected pitch or roll angle is not less than 2°, the low-light night vision device will not trigger the static power-off function, and all peripherals will work normally. After the low-light night vision device enters the static power-off state, the monitoring input interface W5 of the main control MCU module 15 samples the attitude sensor U5 50 times every 1.5 seconds. If the range of the pitch angle or roll angle collected is greater than 2°, the low-light night vision device triggers the motion wake-up function, and all peripherals resume normal operation. After the low-light night vision device enters the static power-off state, the monitoring input interface W5 of the main control MCU module 15 samples the attitude sensor U5 20 times every 1.5 seconds. The range values ​​of the pitch angle and roll angle collected are not greater than 2°. The low-light night vision device does not trigger the motion wake-up function, and all peripherals remain turned off. To use the image intensifier gain adjustment function, two conditions must be met: first, the image intensifier must be a gain-adjustable type; second, the image intensifier must be in the on state. Once these conditions are met, the brightness of the image intensifier can be controlled by adjusting the output voltage of the rotary potentiometer RP1. The higher the output voltage of rotary potentiometer RP1, the brighter the image intensifier; the lower the output voltage of rotary potentiometer RP1, the dimmer the image intensifier. When rotary potentiometer RP1 is slid to the left, the voltage at the J8 terminal of the image intensifier gain adjustment interface decreases, and the image intensifier gradually dims; when rotary potentiometer RP1 is slid to the right, the voltage at the J8 terminal of the image intensifier gain adjustment interface increases, and the image intensifier gradually brightens. The sensor level monitoring unit 142 is typically adapted for functions such as Hall effect flip-up power failure monitoring and key input. It mainly monitors the digital values ​​of the connected sensors and is an expansion interface reserved for low-light night vision devices. When the voltage level of the connected extended sensor changes, the voltage of the monitoring input interface W6 of the main control MCU module 15 is pulled low or high. The operator can set the corresponding code instructions according to different personalized functions, which has extremely high configurability.

[0064] In verifying this invention, the inventors discarded the existing technical features of various low-light night vision devices, which differ significantly in functional control and power consumption requirements, and where there is a strict matching relationship between the circuit system and the terminal product. They first proposed a technical feature that places the working state of the low-light night vision device under the control of a logic program, resulting in the first unexpected technical effect: the arrangement of the low-light night vision device's working state under the action of the built-in logic program in the main control MCU module 15, improving the device's performance. The second unexpected technical effect: the power management module 11 can operate in a dual-battery state under the action of the monitoring port of the main control MCU module 15, improving the safety performance of the power management module 11. The third unexpected technical effect: the peripheral drive module 12 can operate under the action of the control port of the main control MCU module 15, improving the response performance of the image intensifier, auxiliary lighting, and low battery indicator. The fourth unexpected technical effect was achieved: the intelligent protection module 13 was activated under the monitoring port of the main control MCU module 15, ensuring the image intensifier was in a safe protection state. The fifth unexpected technical effect was achieved: the expansion module 14 was activated under the monitoring port of the main control MCU module 15, enabling the image intensifier gain to be adjusted and the sensor level to be monitored during the operation of the low-light night vision device, thus expanding the working performance of the low-light night vision device. The sixth unexpected technical effect was achieved: the significant differences in functional control and power consumption requirements among various low-light night vision devices, and the strict matching relationship between the circuit system and the terminal product, were eliminated, allowing for adaptive configuration of the low-light night vision device circuit to meet the needs of various scenarios in use. The seventh unexpected technical effect was achieved: the standardized selection and matching of circuit components for low-light night vision devices was realized, shortening the testing period for performance verification of various low-light night vision devices.

[0065] In a second embodiment of the present invention, the power management module 11, the main control MCU module 15, and the configuration module group are interconnected in such a way that the working state of the low-light night vision device is under logical program control.

[0066] In this embodiment, the configuration module group is connected to the power management module 11 and the main control MCU module 15 in a way that matches the performance of the electronic components of the low-light night vision device in real time.

[0067] In this embodiment, the configuration module group is configured to include a peripheral driver module 12, an intelligent protection module 13, and an expansion module 14. The second embodiment of the present invention is based on the first embodiment. In the second embodiment of the present invention, the steps are as follows: the power management module 11 provides power to the low-light night vision device; the configuration module group performs real-time performance matching of the electronic components of the low-light night vision device; and the main control MCU module 15 performs logic signal processing control between the power management module 11 and the configuration module group, thereby enabling the low-light night vision device to operate under logic program control.

[0068] The second embodiment of the present invention is based on the first embodiment.

[0069] This invention has the following characteristics: 1. By designing a power management module 11, a main control MCU module 15, and a configuration module group, the power management module 11 enables the supply of power to the low-light night vision device. The configuration module group enables real-time performance matching of the electronic components of the low-light night vision device. The main control MCU module 15 enables logic signal processing control between the power management module 11 and the configuration module group, ensuring that the working state of the low-light night vision device is under logical program control. This solves the technical problem of significant differences in functional control and power consumption requirements among various low-light night vision devices, as well as the strict matching relationship between the circuit system and the terminal product. Therefore, it improves the configurability among various low-light night vision devices.

[0070] 2. Due to the design of peripheral driver module 12, intelligent protection module 13 and expansion module 14, the control of the amplifier, auxiliary lighting and low battery indicator light is realized.

[0071] 3. Because the design limits the numerical range of the structural shape, the numerical range is a technical feature in the technical solution of this invention, and is not a technical feature obtained by formula calculation or a limited number of experiments. The experiment shows that the technical feature of this numerical range has achieved very good technical effect.

[0072] 4. Due to the design of the technical features of this invention, and the combined effect of the individual and collective technical features, experiments have shown that the performance indicators of this invention are at least 1.7 times that of existing performance indicators, and the invention has been evaluated to have good market value.

[0073] Other technical features that connect the power management module 11, the main control MCU module 15, and the configuration module group to the low-light night vision device under logical program control are also embodiments of the present invention. Furthermore, the technical features of the above embodiments can be combined arbitrarily. In order to meet the requirements of the Patent Law, the Patent Implementation Regulations, and the Examination Guidelines, all possible combinations of the technical features in the above embodiments will not be described.

[0074] The above embodiments are merely one implementation of the configurable low-light night vision device circuit and working method provided by the present invention. Other modifications to the solution provided by the present invention, additions or reductions of features or steps, or application of the present invention to other technical fields similar to the present invention, all fall within the protection scope of the present invention.

Claims

1. A configurable low-light night vision device circuit, characterized in that: It includes a power management module (11) for power supply, a main control MCU module (15) for logic processing, and a configuration module group located between the power management module (11) and the main control MCU module (15).

2. The configurable low-light night vision device circuit according to claim 1, characterized in that: The power management module (11), the main control MCU module (15), and the configuration module are interconnected in a way that keeps the working state of the low-light night vision device under logical program control.

3. The configurable low-light night vision device circuit according to claim 2, characterized in that: The configuration module group is connected to the power management module (11) and the main control MCU module (15) in a way that matches the performance of the electronic components of the low-light night vision device in real time.

4. The configurable low-light night vision device circuit according to claim 1, characterized in that: The configuration module group is set to include a peripheral driver module (12), an intelligent protection module (13), and an expansion module (14).

5. The configurable low-light night vision device circuit according to claim 4, characterized in that: The power output interface of the power management module (11) is respectively connected to the power input interface T1 of the peripheral driver module (12), the power input interface T2 of the intelligent protection module (13), the power input interface T3 of the expansion module (14), and the power input interface T4 of the main control MCU module (15). The monitoring input interface W1 of the main control MCU module (15) is connected to the power management module (11), and the monitoring input interfaces W2, W3, W4, and W5 of the main control MCU module (15) are respectively connected to the intelligent protection module (13). The monitoring input interface W6 of the main control MCU module (15) is connected to the expansion module (14), and the control output interfaces Y1, Y2, Y3, and Y4 of the main control MCU module (15) are connected to the peripheral driver module (12). The control output interface Y5 of the main control MCU module (15) is connected to the expansion module (14).

6. The configurable low-light night vision device circuit according to claim 5, characterized in that: The main control MCU module (15) is configured as a single-chip microcomputer. Alternatively, the power management module (11) is configured to include a first PMOS transistor Q1, a Schottky diode D1, a PNP transistor VT1, resistors R1 and R2, a second PMOS transistor Q2, a third PMOS transistor Q3, an external battery J1, an internal battery J2, a coil L1, a resistor R3, a first boost chip U1, a capacitor C1, a resistor R4, a resistor R5, a capacitor C2, a resistor R6, a capacitor C3, a resistor R7, a second boost chip U2, a coil L2, a power switch J3, a capacitor C4, a resistor R8, a resistor R9, and a capacitor C5. The first boost chip U1 and the second boost chip U2 are respectively provided with interfaces LX, IN, EN, OUT, FB, and FB. The gate of the power switch J3, the gate of the third PMOS transistor Q3, the emitter of the PNP transistor VT1, and the drain of the first PMOS transistor Q1 are connected to the monitoring input interface W1 of the main control MCU module (15). The collector of the PNP transistor VT1, the source of the first PMOS transistor Q1, and one of the interfaces of the resistor R2 are connected to each other. The base of the PNP transistor VT1, one of the interfaces of the resistor R1, and the cathode of the Schottky diode D1 are connected to each other. The other interface of the resistor R2 and the other interface of the resistor R1 are connected to ground. The gate of the first PMOS transistor Q1, the anode of the Schottky diode D1, and the cathode of the first PMOS transistor Q1 are connected to each other. One of the interfaces of the external battery J1, one of the interfaces of the coil L1, the interface IN of the first boost chip U1, and one of the interfaces of the resistor R3 are connected to each other. The other interface of the external battery J1 and the other interface of the internal battery J2 are connected to ground. One interface of the internal battery J2 is connected to the gate of the second PMOS transistor Q2. The other interface of the coil L1 is connected to the interface LX of the first boost chip U1. The other interface of the resistor R3 is connected to the interface EN of the first boost chip U1. The interfaces GND of the first boost chip U1, the other interface of the resistor R5, and the other interface of the capacitor C2 are also connected to the ground. One of the interfaces of resistor R6, one of the interfaces of capacitor C3, the GND interface of the second boost chip U2, one of the interfaces of resistor R9, and one of the interfaces of capacitor C5 are respectively connected to ground. The FB interface of the first boost chip U1, one of the interfaces of resistor R5, one of the interfaces of capacitor C1, and one of the interfaces of resistor R4 are interconnected. The OUT interface of the first boost chip U1, one of the interfaces of capacitor C1, one of the interfaces of resistor R4, the source of the second PMOS transistor Q2, the source of the third PMOS transistor Q3, one of the interfaces of capacitor C2, and one of the interfaces of resistor R6 are interconnected.One of the interfaces of capacitor C3, one of the interfaces of resistor R7, one of the interfaces of coil L2, one of the interfaces of power switch J3, and the interface IN of the second boost chip U2 are connected to each other. One of the interfaces of coil L2 is connected to the interface LX of the second boost chip U2. One of the interfaces of resistor R7 is connected to the interface EN of the second boost chip U2. The interfaces FB of the second boost chip U2, one of the interfaces of capacitor C4, one of the interfaces of resistor R8, and one of the interfaces of resistor R9 are connected to each other. The interfaces OUT of the second boost chip U2, one of the interfaces of capacitor C4, one of the interfaces of resistor R8, one of the interfaces of capacitor C5, the power input interface T1 of the peripheral driver module (12), the power input interface T2 of the intelligent protection module (13), the power input interface T3 of the expansion module (14), and the power input interface T4 of the main control MCU module (15) are connected to each other. Alternatively, the battery compatibility unit 111 is configured as a built-in battery J2, the power switch unit 112 is configured as a power switch J3, the reverse connection protection unit 113 is configured to include a second PMOS transistor Q2 and a third PMOS transistor Q3, the external battery compartment unit 114 is configured to include a first PMOS transistor Q1, a Schottky diode D1, a PNP transistor VT1, a resistor R1, a resistor R2, an external battery J1 and a first boost chip U1, and the voltage output unit (115) is configured as a second boost chip U2.

7. The configurable low-light night vision device circuit according to claim 5, characterized in that: The peripheral driver module (12) is configured to include a fourth PMOS transistor Q4, a resistor R10, a fifth PMOS transistor Q5, a resistor R11, a sixth PMOS transistor Q6, a resistor R12, a resistor R13, a seventh PMOS transistor Q7, a resistor R14, and a resistor R15. The drain of the fourth PMOS transistor Q4, one of the interfaces of the resistor R10, the drain of the fifth PMOS transistor Q5, one of the interfaces of the resistor R11, one of the interfaces of the resistor R13, the drain of the sixth PMOS transistor Q6, one of the interfaces of the resistor R15, and the drain of the seventh PMOS transistor Q7 are respectively connected to the power input interface T1 of the peripheral driver module (12). The gate of the fourth PMOS transistor Q4 is connected to the first image intensifier drive control interface J4. The other interface of the resistor R10 and the source of the fourth PMOS transistor Q4 are respectively connected to the control output interface Y1 of the main control MCU module (15). The gate of OS transistor Q5 is connected to the second image intensifier drive control interface J5. The other port of resistor R11 and the source of the fifth PMOS transistor Q5 are respectively connected to the control output interface Y2 of the main control MCU module (15). One port of resistor R12 is connected to the auxiliary lighting interface J6. The other port of resistor R12 is connected to the gate of the sixth PMOS transistor Q6. The other port of resistor R13 and the source of the sixth PMOS transistor Q6 are respectively connected to the control output interface Y3 of the main control MCU module (15). One port of resistor R14 is connected to the low battery indicator interface J7. The other port of resistor R14 is connected to the gate of the seventh PMOS transistor Q7. The other port of resistor R15 and the source of the seventh PMOS transistor Q7 are respectively connected to the control output interface Y4 of the main control MCU module (15). Alternatively, the booster drive control unit 121 may be configured to include a fourth PMOS transistor Q4, a resistor R10, a fifth PMOS transistor Q5, and a resistor R11; the auxiliary lighting unit 122 may be configured to include a sixth PMOS transistor Q6, a resistor R12, and a resistor R13; and the low battery indicator unit 123 may be configured to include a seventh PMOS transistor Q7, a resistor R14, and a resistor R15. Alternatively, the intelligent protection module (13) is configured to include resistor R16, photoresistor LDR1, capacitor C6, first Hall sensor U3, second Hall sensor U4, attitude sensor U5, resistor R17, resistor R18, resistor R19, capacitor C7, capacitor C8, capacitor C9, and capacitor C10. The first Hall sensor U3 is configured with interfaces GND, VOUT, and VDD. The second Hall sensor U4 is configured with interfaces GND, VOUT, and VDD. The attitude sensor U5 is configured with interfaces EP, CLKIN, NC, AUX-DA, AUX-CL, VLOGIC, ADO, REGOUT, and F. SYNC, SDA, SCL, RESV, CPOUT, GND, and VDD; power input interface T2 of the intelligent protection module (13); one port of resistor R16; one port of resistor R18; one port of capacitor C7; VLOGIC interface of attitude sensor U5; one port of resistor R17; one port of capacitor C8; FSYNC interface of attitude sensor U5; negative terminal of capacitor C10; GND interface of attitude sensor U5; GND interface of first Hall sensor U3; GND interface of second Hall sensor U4; VDD interface of first Hall sensor U3; and VDD interface of second Hall sensor U4. Interface VDD is set to be interconnected. One of the other ports of resistor R16, one of the ports of photoresistor LDR1, one of the ports of capacitor C8, and the monitoring input interface W2 of the main control MCU module (15) are set to be interconnected. One of the other ports of photoresistor LDR1 and one of the other ports of capacitor C8 are set to be connected to ground. One of the other ports of capacitor C7, the interface CLKIN of attitude sensor U5, and the interface EP of attitude sensor U5 are set to be connected to ground. One of the other ports of resistor R17 is set to be connected to the interface ADO of attitude sensor U5. One of the other ports of capacitor C8 is set to be connected to the interface REGOUT of attitude sensor U5. The connections are as follows: one port of R18, one port of resistor R19, the VDD interface of attitude sensor U5, and the positive terminal of capacitor C10 are connected to each other; one port of capacitor C9 is connected to the CPOUT interface of attitude sensor U5; the other port of capacitor C9, the GND interface of attitude sensor U5, the GND interface of the first Hall sensor U3, and the GND interface of the second Hall sensor U4 are connected to ground; the other port of R18, the other port of resistor R19, the SDA interface of attitude sensor U5, the SCL interface of attitude sensor U5, and the monitoring input interface W2 of the main control MCU module (15) are connected to each other.The interface VOUT of the first Hall sensor U3 is set to be connected to the monitoring input interface W3 of the main control MCU module (15), and the interface VOUT of the second Hall sensor U4 is set to be connected to the monitoring input interface W4 of the main control MCU module (15). Alternatively, the high-intensity light protection unit 131 is configured to include a resistor R16, a photoresistor LDR1, and a capacitor C6; the side-flip power-off unit 132 is configured to include a first Hall sensor U3 and a second Hall sensor U4; and the upward-flip power-off unit 133 and the static power-off and motion wake-up unit 134 are configured to include an attitude sensor U5, resistors R17, R18, and R19, and capacitors C7, C8, C9, and C10. Alternatively, the expansion module (14) is configured as a rotary potentiometer RP1. The power input interface T3 of the expansion module (14) and the monitoring input interface W6 of the main control MCU module (15) are respectively connected to the sensor level monitoring interface J9. One port of the rotary potentiometer RP1 is connected to the control output interface Y5 of the main control MCU module (15). The gain power output terminal of the rotary potentiometer RP1 is connected to the image intensifier gain adjustment interface J8. The other port of the rotary potentiometer RP1 is connected to ground. Alternatively, the enhancer gain adjustment unit (141) may be configured to include a rotary potentiometer RP1, and the sensor level monitoring unit (142) may be configured to have a sensor level monitoring interface J9.

8. The configurable low-light night vision device circuitry according to any one of claims 1 to 7, characterized in that: The power management module (11), peripheral driver module (12), and intelligent protection module (13) are distributed with the main control MCU module (15) in a logical processing manner, and the power management module (11), peripheral driver module (12), intelligent protection module (13), and main control MCU module (15) are distributed with the expansion module (14) in an external control manner.

9. A method for operating a configurable low-light night vision device circuit, characterized by the following steps: The power management module (11) provides power to the low-light night vision device, the configuration module group performs real-time performance matching of the electronic components of the low-light night vision device, and the main control MCU module (15) performs logic signal processing control between the power management module (11) and the configuration module group, thus enabling the low-light night vision device to operate under logic program control.

10. The method for operating the configurable low-light night vision device circuit according to claim 5, characterized in that: the steps are: When power switch J3 is on, the low-light night vision device's circuit system is powered on. When power switch J3 is off, the low-light night vision device's circuit system is powered off. It simultaneously controls the power supply to both the external battery J1 and the internal battery J2. For monocular and binocular low-light night vision devices, the internal battery J2 provides power. The internal battery J2 has voltage ratings of 3V, 1.5V, and 1.2V and is connected via the device's internal battery J2 interface, primarily using a single battery. When the external battery J1 is not connected or is not activated, the internal battery J2 is positively connected, and the drain voltage of the second PMOS transistor Q2 is the battery voltage. Due to the presence of the diode in the second PMOS transistor Q2, the voltage across the drain of the second PMOS transistor Q2 is... When the source voltage of PMOS transistor Q2 is higher than its gate voltage, Q2 is in the ON state. The source voltage of PMOS transistor Q3 is equal to the source voltage of Q2. Therefore, the source voltage of Q3 is higher than its gate voltage, and Q3 is in the ON state. The internal battery J2 is in the positive connection output state. When the external battery J1 is either connected or not, J2 is in the reverse connection state, and the drain voltage of PMOS transistor Q2 is the negative battery voltage. Due to the presence of the diode in PMOS transistor Q2, the source voltage of Q2 is lower than its gate voltage, and Q2 is in the OFF state. The source voltage of PMOS transistor Q3... The gate voltage is equal to the source voltage of the second PMOS transistor Q2. At this time, the source voltage of the third PMOS transistor Q3 is lower than the gate voltage, and the third PMOS transistor Q3 is in the off state. The built-in battery J2 is in the reverse connection protection state. For binocular and quad-binocular low-light night vision devices, there are two compatible power supply methods: built-in battery J2 and external battery J1. The voltage of the external battery J1 is set to 3V and 1.5V. It is connected through the external battery J1 interface of the low-light night vision device. Four batteries are the main type. When the external battery J1 is not connected or is not connected, the output voltage of the first boost chip U1 is 0V. After the built-in battery J2 is correctly connected, the second PMOS transistor Q2 and the third PMOS transistor Q3 are in the reverse connection protection state. In the ON state, the circuit system is powered by the built-in battery J2. At this time, the drain voltage of the first PMOS transistor Q1 is 0V, and the source voltage of the first PMOS transistor Q1 is equal to the voltage of the built-in battery J2. Since the PNP transistor VT1 is turned on, the gate voltage of the first PMOS transistor Q1 is equal to the source voltage, and the first PMOS transistor Q1 is in the OFF state. Due to the presence of the diode in the first PMOS transistor Q1, a short circuit will not occur when the source voltage of the first PMOS transistor Q1 is greater than the drain voltage, thus preventing current from flowing back from the source of the first PMOS transistor Q1 to the drain of the first PMOS transistor Q1. When the external battery J1 is connected and turned on, the output voltage of the first boost chip U1 is 3V.With the internal battery J2 connected at 3V, regardless of whether it is in the forward or reverse connection state, the second PMOS transistor Q2 and the third PMOS transistor Q3 are in the off state. The drain voltage of the first PMOS transistor Q1 is equal to the voltage of the external battery J1. Due to the presence of the diode in the first PMOS transistor Q1, the source voltage of the first PMOS transistor Q1 is equal to the voltage of the external battery J1. Since the PNP transistor VT1 is off, the gate voltage of the first PMOS transistor Q1 is 0V. At this time, the source voltage of the first PMOS transistor Q1 is higher than the gate voltage, and the first PMOS transistor Q1 is in the on state. The circuit system is powered by the external battery J1. Regardless of how the voltage of the external battery J1 decreases or how the battery type changes, the first boost chip U1 outputs... The voltage is always 3.3V. The second PMOS transistor Q2 and the third PMOS transistor Q3 remain off to avoid the slow discharge of the built-in battery J2 due to the incomplete conduction of the second PMOS transistor Q2 and the third PMOS transistor Q3. The circuit system design of the low-light night vision device must ensure that the voltage output unit (115) can provide a stable operating voltage regardless of whether the built-in battery J2 or the external battery J1 is used and regardless of how much its power decreases. Given that the operating voltage range of the image intensifier is 2.6V to 3.3V, the voltage output value of the voltage output unit (115) is usually set to 3.3V to ensure the stable operation of the core components. The output voltage of the second boost chip U2 is adjusted by the resistor. With resistance The resistance value is achieved by following the formula: ,in, This is the output voltage of the second boost chip U2. Let R8 be the resistance value. Here, the resistance value of resistor R9 is 1.2, and the reference voltage coefficient is 1.

2. The resistance values ​​of resistors R8 and R9 are chosen to be 360K ohms and 205K ohms respectively. At this time, the output voltage of the voltage output unit (115) is 3.3V. The number of image intensifiers mounted on the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5 depends on the type of low-light night vision device. For monocular low-light night vision devices, only the first image intensifier drive control interface J4 is connected. For binocular low-light night vision devices, the left and right image intensifiers are connected to the first image intensifier drive control interface J4 respectively. Image intensifier drive control interface J4 and image intensifier drive control interface J5 are connected to the first image intensifier drive control interface J4 and the second image intensifier drive control interface J5 respectively. When the image intensifier meets the activation condition, the voltages of the control output interface Y1 and the control output interface Y2 of the main control MCU module (15) are pulled low, and the gate voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are 0V. The source voltage of OS transistor Q4 and the source voltage of the fifth PMOS transistor Q5 are 3.3V. The source voltage of the fourth PMOS transistor Q4 and the source voltage of the fifth PMOS transistor Q5 are higher than the gate voltage. The fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are in the on state. The drain voltage of the fourth PMOS transistor Q4 and the drain voltage of the fifth PMOS transistor Q5 are 3.3V. The image intensifier is in the start state. When the image intensifier does not meet the start condition, the control output interface Y1 of the main control MCU module (15) and the main control M When the voltage of the control output interface Y2 of the CU module (15) is pulled high, the gate and source voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are both 3.3V. The source voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are equal to the gate voltage. The fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are in a non-conducting state. The drain voltages of the fourth PMOS transistor Q4 and the fifth PMOS transistor Q5 are 0V. The image intensifier is in a turned-off state. When the auxiliary lighting is turned on, the voltage of the control output interface Y3 of the main control MCU module (15) is pulled low. At this time, the gate voltage of the sixth PMOS transistor Q6 is 0V, the source voltage of the sixth PMOS transistor Q6 is 3.3V, the source voltage of the sixth PMOS transistor Q6 is higher than the gate voltage, the sixth PMOS transistor Q6 is in the on state, the drain voltage of the sixth PMOS transistor Q6 is 3.3V, and the auxiliary lighting is lit. When the auxiliary lighting is turned off, the voltage of the control output interface Y3 of the main control MCU module (15) is pulled high. At this time, the gate and source voltages of the sixth PMOS transistor Q6 are both 3.3V.When the source voltage of the sixth PMOS transistor Q6 is equal to the gate voltage, Q6 is in a non-conducting state, and the drain voltage is 0V. The auxiliary lighting is off. When the low battery indicator is on, the voltage of the control output interface Y4 of the main control MCU module (15) is pulled low. At this time, the gate voltage of the seventh PMOS transistor Q7 is 0V, and the source voltage is 3.3V. The source voltage of Q7 is higher than the gate voltage, so Q7 is in a conducting state. The drain voltage is 3.3V, and the low battery indicator lights up. When the low battery indicator light is off, the voltage of the control output interface Y4 of the main control MCU module (15) is pulled high. At this time, the gate and source voltages of the seventh PMOS transistor Q7 are both 3.3V, the source voltage of the seventh PMOS transistor Q7 is equal to the gate voltage, the seventh PMOS transistor Q7 is in a non-conducting state, the drain voltage of the seventh PMOS transistor Q7 is 0V, the low battery indicator light is off, and if the photosensitive material of the image intensifier is exposed to strong light for a long time, its sensitivity will decrease sharply due to fatigue effect, thereby losing the amplification function of weak light and losing night vision capability. Therefore, strong light protection is provided for the image intensifier. The specific relationship between light intensity and image intensifier state switching is as follows: when the light intensity is less than 10 lux, the image intensifier is turned on; when the light intensity is greater than or equal to 10 lux, the image intensifier is turned off. The voltage of the monitoring input interface W2 of the main control MCU module (15) is the voltage division value of the photoresistor LDR1 and the resistor (16), and follows the following formula: in, The voltage at the voltage monitoring terminal of the photoresistor LDR1 is... The resistance value of photoresistor LDR1 is... The resistance of resistor R16 is 3.3, and the voltage divider coefficient is 3.

3. As the light intensity increases, the resistance of photoresistor LDR1 gradually decreases, and the voltage value at the voltage monitoring terminal gradually increases, eventually exceeding the voltage value corresponding to the light intensity threshold. The low-light night vision device triggers the strong light protection function, and the voltage of the control output interface Y1 and control output interface Y2 of the main control MCU module (15) is pulled high, and the image intensifier is turned off. As the light intensity decreases, the resistance of photoresistor LDR1 gradually increases, and the voltage value at the voltage monitoring terminal gradually decreases, eventually falling below the voltage value corresponding to the light intensity threshold. The low-light night vision device does not trigger the strong light protection function, and the voltage of the control output interface Y1 and control output interface Y2 of the main control MCU module (15) is pulled low, and the image intensifier is turned on. The side-flip power-off unit 132 is commonly used in binocular and quad-eye low-light night vision devices. When the left observation system flips, the left image intensifier group is powered off, and the right image intensifier group works normally. When the right observation system flips, the right image intensifier group is powered off, and the left image intensifier group works normally. When the left and right observation systems simultaneously tilt, the first Hall sensor U3 and the second Hall sensor U4 move away from the magnet on the middle bridge, and the voltages of the monitoring input interfaces W3 and W4 of the main control MCU module (15) are pulled high, triggering the tilt power-off function on both sides. The voltages of the control output interfaces Y1 and Y2 of the main control MCU module (15) are pulled high, and both left and right side image intensifier groups are turned off. When the left observation system tilts but the right observation system does not tilt, the first Hall sensor U3 moves away from the magnet on the middle bridge, and the second Hall sensor U4 moves closer to the magnet on the middle bridge. The voltages of the monitoring input interfaces W3 and W4 of the main control MCU module (15) are pulled high, and the voltages of the monitoring input interfaces W3 and W4 of the main control MCU module (15) are pulled high. When the voltage is pulled low, the left side triggers the side-flip power-off function, while the right side does not trigger the side-flip power-off function. The voltage of the control output interface Y1 of the main control MCU module (15) is pulled high, and the voltage of the control output interface Y2 of the main control MCU module (15) is pulled low. The left image intensifier group is turned off, and the left image intensifier group is turned on. When the left observation system does not flip and the right observation system flips, the first Hall sensor U3 is close to the magnet on the middle bridge, and the second Hall sensor U4 is away from the magnet on the middle bridge. The voltage of the monitoring input interface W3 of the main control MCU module (15) is pulled low, and the voltage of the monitoring input interface W4 of the main control MCU module (15) is pulled high. The left side does not trigger the side-flip power-off function, while the right side triggers the side-flip power-off function. The voltage of the main control MCU module (15) When the voltage of the control output interface Y1 is pulled low and the voltage of the control output interface Y2 of the main control MCU module (15) is pulled high, the left image intensifier group is turned on and the right image intensifier group is turned off. When the left observation system and the right observation system do not tilt at the same time, the first Hall sensor U3 and the second Hall sensor U4 are close to the magnet on the middle bridge, and the voltage of the monitoring input interface W3 and the monitoring input interface W4 of the main control MCU module (15) is pulled low. The tilt power-off function is not triggered on either side. The voltage of the control output interface Y1 and the control output interface Y2 of the main control MCU module (15) is pulled low, and the left and right side image intensifier groups are turned on. The tilt power-off, static power-off and motion wake-up functions of the low-light night vision device all rely on the triaxial acceleration and the three-axis acceleration obtained from the attitude sensor U5. The three-axis angular velocity data is fused with the acquired attitude data based on the Kalman filter algorithm to calculate the pitch and roll angles under the current attitude and limit them to the range of -180° to 180°. This serves as the basis for judging the flip-up power-off, static power-off, and motion wake-up. When the pitch angle of the low-light night vision device is in the range of -180° to 135° or 90° to 180°, the flip-up power-off function is triggered. The voltage of the control output interface Y1 and control output interface Y2 of the main control MCU module (15) is pulled high, and the image intensifier is turned off. When the pitch angle of the low-light night vision device is in the range of -135° to 90°, the flip-up power-off function is not triggered. The voltage of the control output interface Y1 and control output interface Y2 of the main control MCU module (15) is pulled low, and the image intensifier is turned on.The monitoring input interface W5 of the main control MCU module (15) samples the attitude sensor U5 400 times every three minutes. If the range of the pitch angle and roll angle is less than 2°, the low-light night vision device triggers the static power-off function. The voltages of the control output interfaces Y1, Y2, Y3, Y4 and Y5 of the main control MCU module (15) are pulled high, and all peripherals are turned off. The monitoring input interface W5 of the main control MCU module (15) samples the attitude sensor U5 400 times every five minutes. If the range of the pitch angle or roll angle is not less than 2°, the low-light night vision device does not trigger the static power-off function. When the power-off function is enabled, all peripherals operate normally. After the low-light night vision device enters the static power-off state, the monitoring input interface W5 of the main control MCU module (15) samples the attitude sensor U5 50 times every 1.5 seconds. If the range of the pitch angle or roll angle is greater than 2°, the low-light night vision device triggers the motion wake-up function, and all peripherals resume normal operation. After the low-light night vision device enters the static power-off state, the monitoring input interface W5 of the main control MCU module (15) samples the attitude sensor U5 20 times every 1.5 seconds. If the range of the pitch angle and roll angle is not greater than 2°, the low-light night vision device does not trigger the motion wake-up function, and all peripherals remain off. Two conditions must be met to use the image intensifier gain adjustment function: first, the image intensifier must be of adjustable gain; second, the image intensifier must be in the on state. If the above conditions are met, the brightness of the image intensifier can be controlled by adjusting the output voltage of the rotary potentiometer RP1. The higher the output voltage of the rotary potentiometer RP1, the brighter the image intensifier; the lower the output voltage of the rotary potentiometer RP1, the darker the image intensifier. When the rotary potentiometer RP1 is slid to the left, the voltage at the J8 terminal of the image intensifier gain adjustment interface decreases, and the image intensifier gradually darkens; when the rotary potentiometer RP1 is slid to the right, the voltage at the J8 terminal of the image intensifier gain adjustment interface increases, and the image intensifier gradually brightens. The sensor level monitoring unit (142) is usually adapted to Hall-type flip-up power-off monitoring, key input and other functions. It mainly monitors the digital quantity of the connected sensor. It is an extension interface reserved by the low-light night vision device. When the level of the connected extended sensor changes, the voltage of the monitoring input interface W6 of the main control MCU module (15) is pulled low or pulled high. The operator will set the corresponding code instruction according to different personalized functions, which has extremely high configurability.

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