Laser bird repelling device with self-locking protection function
By introducing a self-locking circuit and sensors to detect the gimbal status and control the laser output in the laser bird deterrent device, the safety hazards caused by gimbal malfunctions are solved, and the safety protection of the laser device and the protection of the equipment are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI HAIZHUO TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing laser bird deterrence devices lack safety control and protection when the gimbal malfunctions, resulting in continuous laser output, which can easily damage the equipment or cause fire accidents.
A device comprising a laser drive circuit, a self-locking circuit, and a laser emitter was designed. The device uses a vibration sensor and a triaxial accelerometer to detect the gimbal status, and a processor controls a switch module to adjust the laser output to prevent excessive laser irradiation when the gimbal jams. An overcurrent protection switch is set to limit the laser power, and the device reminds the user to perform maintenance via wireless communication.
It effectively avoids equipment damage or fire caused by excessive laser irradiation when the gimbal malfunctions, protects sensitive equipment, and promptly reminds users to maintain it, thus reducing safety hazards.
Smart Images
Figure CN224522197U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of laser bird deterrence equipment, and specifically relates to a laser bird deterrence device with self-locking protection function. Background Technology
[0002] Currently, with the improvement of the ecological environment, the damage caused by the frequent activities of birds to power supply facilities, military and civilian airports, orchards and other facilities is also increasing. For example, birds stop and build nests on power supply facilities, and bird droppings adhere to the power facilities, causing corrosion and reducing the insulation of the power facilities. Nesting materials falling on power transmission lines can easily cause short circuits and tripping of the lines. Furthermore, birds pecking at fruits can cause bacterial infections in the fruits, resulting in reduced fruit production.
[0003] In existing technologies, bird control methods mainly include ultrasonic bird deterrence, reflective mirror bird deterrence, bird deterrence using simulated predator-like popping sounds, and laser bird deterrence. Among these, laser bird deterrence is widely used in substations, airports, orchards, etc., because it has little impact on the surrounding environment and has a significant bird deterrence effect.
[0004] However, existing laser bird deterrent devices have the following technical problems during use: Laser is a beam of energy. When the pan-tilt unit is operating normally, the bird deterrent laser is in motion and the time it irradiates birds and objects is very short, so it will not burn the eyes of birds or other objects. However, even though the lasers used for bird deterrence are usually below 20W, when the pan-tilt unit malfunctions, such as jamming or stopping for a long time, the bird deterrent laser may fall on the video surveillance equipment in the substation, the lines with polyethylene insulation material, or the dry branches and grass in the orchard for a long time. This can easily damage the photosensitive element of the video surveillance equipment, destroy the insulation layer of the polyethylene insulation material of the lines and cause a discharge grounding accident, or cause the dry branches and grass in the orchard to be ignited and cause a fire. Moreover, most existing laser bird deterrent devices usually lack safety control and protection for the laser emitter when the pan-tilt unit malfunctions, which poses a great safety hazard.
[0005] In view of this, the present invention proposes a laser bird deterrent device with self-locking protection function. Utility Model Content
[0006] The purpose of this utility model is to provide a laser bird deterrent device with a self-locking protection function to solve the technical problem in the prior art that there is no safety control and protection between the gimbal and the laser. When the gimbal is out of control, the laser continues to output, which can easily cause damage to the equipment in the bird deterrent area or cause a fire, posing a great safety hazard.
[0007] To achieve the above objectives, this utility model provides a laser bird deterrent device with a self-locking protection function, comprising:
[0008] The laser mounted on the gimbal includes a laser driving circuit, a self-locking circuit, and a laser emitter. The self-locking circuit includes a vibration sensor module, a first switch module, and a second switch module. The input terminal of the first switch module is connected to the input power supply of the laser, and the output terminal is connected to the input terminal of the laser driving circuit. The input terminal of the second switch module is connected to the output terminal of the laser driving circuit, and the output terminal is connected to the laser emitter.
[0009] The processor is connected to the gimbal, the control terminal of the first switch module, the control terminal of the second switch module, and the vibration sensor module, respectively, to control the on / off state of the first switch module and the second switch module, receive signals from the vibration sensor module, and control the first switch module and the second switch module based on the signals from the vibration sensor module, so as to control the laser output of the laser emitter.
[0010] Preferably, in the above technical solution, the first switching module is a relay module; the second switching module is a field-effect transistor module.
[0011] Preferably, in the above technical solution, the self-locking circuit includes a triaxial accelerometer, which is connected to the processor.
[0012] Preferably, in the above technical solution, the self-locking circuit includes an overcurrent protection switch, the input terminal of which is connected to the output terminal of the second switch module, and the output terminal is connected to the input terminal of the laser emitter.
[0013] Preferably, in the above technical solution, the overcurrent protection switch is a self-resetting fuse.
[0014] Preferably, in the above technical solution, the overcurrent protection switch is a fast-acting fuse.
[0015] Preferably, the above technical solution further includes a timer module and an audible and visual alarm, which are respectively connected to the processor.
[0016] Compared with existing technologies, this utility model has the following beneficial effects:
[0017] 1. The laser of this utility model includes a laser driving circuit, a self-locking circuit, and a laser emitter. The laser driving circuit drives the laser emitter to generate a 532nm green bird-repelling laser. The self-locking circuit includes a vibration sensor module, a first switch module, and a second switch module. The vibration sensor module is used to detect the motion state of the laser. The input terminal of the first switch module is connected to the input power supply of the laser, and the output terminal is connected to the input terminal of the laser driving circuit. The output terminal of the laser driving circuit is connected to the input terminal of the second switch module, and the output terminal of the second switch module is connected to the laser emitter. The processor determines the gimbal lag time by acquiring the signal transformation time of the vibration sensor module. When the processor detects that the gimbal lag time exceeds a set threshold, the processor inputs a PWM modulation signal to the second switch module to control the switching of the second switch module. This reduces the average current input from the laser drive circuit to the laser emitter, thereby reducing the output laser power of the laser emitter or stopping the laser output. When the processor detects that the gimbal lag time is too long (i.e., when it stops), the processor controls the first switch module to disconnect the power supply to the laser drive circuit, causing the laser emitter to stop outputting. This prevents the laser emitted by the laser from remaining in a certain position in the bird deterrence protection area for too long when the gimbal is malfunctioning, which could cause the facilities in that position to be burned or damaged, or even cause a fire and property damage.
[0018] 2. This utility model obtains the real-time spatial angle of the laser under the action of the gimbal by a three-axis accelerometer. The processor obtains the angle data from the three-axis accelerometer and then controls the on / off state of the second switch module at the user-set angle to reduce the average current input to the laser transmitter from the laser drive circuit. This makes the input current of the laser transmitter lower than the trigger current, and the laser transmitter is in standby mode, thereby protecting laser-sensitive equipment (video surveillance equipment) installed on the laser's cruise route within the bird deterrence protection area.
[0019] 3. This utility model sets an overcurrent protection switch between the second switch module and the laser drive circuit. When the output current of the laser drive circuit exceeds the set threshold, the overcurrent protection switch quickly disconnects the connection between the laser drive circuit and the laser emitter, thereby limiting the output power of the laser emitter and preventing the laser power emitted by the laser emitter from being too high, which could cause blindness in birds.
[0020] 4. This utility model uses a processor to write the signals collected by the vibration sensor module and the angle signals collected by the triaxial accelerometer when the gimbal malfunctions into the memory as gimbal malfunction data. The processor then sends the gimbal malfunction data and the malfunction time in the memory to the user's smart terminal device through a wireless communicator to remind the user to maintain the gimbal in a timely manner and prevent minor gimbal malfunctions from developing into major malfunctions. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall circuit structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the circuit structure of the vibration sensor module.
[0023] In the diagram: 100—Laser drive circuit, 101—First switch module, 102—Processor, 103—Second switch module, 104—Overcurrent protection switch, 105—Laser emitter, 106—Triaxial accelerometer, 107—Vibration sensor module, 108—Memory, 109—Wireless communicator, 200—Gimbal. Detailed Implementation
[0024] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of protection of the invention is not limited to the specific embodiments.
[0025] refer to Figure 1 A laser bird deterrent device with self-locking protection function includes: a laser, a gimbal 200 and a processor 102. The laser is mounted on the gimbal 200. The laser includes a laser driving circuit 100, a self-locking circuit and a laser emitter 105. The self-locking circuit includes a vibration sensor module 107, a first switch module 101 and a second switch module 103.
[0026] The input terminal of the first switch module 101 is connected to the input power supply of the laser, and the output terminal is connected to the input terminal of the laser drive circuit 100. The control terminal of the first switch module 101 is connected to the processor 102. Specifically, in this embodiment, the first switch module 101 is a relay module, such as... Figure 1 The relay module consists of a relay RLY1, an NPN transistor Q1, and a resistor R1. The laser's input power supply is connected to the input contact of the relay RLY1 switching circuit. The normally closed contact of the relay RLY1 switching circuit is connected to the laser drive circuit 100. The collector of the NPN transistor Q1 is connected to one end of the coil contact of the relay RLY1. The other end of the coil contact of the relay RLY1 is connected to the VCC power supply. The base of the NPN transistor Q1 is connected to the I / O port of the processor 102 through the resistor R1. The emitter of the NPN transistor Q1 is connected to GND. The processor 102 controls the opening and closing of the normally closed circuit of the relay RLY1 by inputting high and low levels to the resistor R1, thereby realizing the connection control between the laser drive circuit 100 and the laser's input power supply.
[0027] The input terminal of the second switching module 103 is connected to the output terminal of the laser driving circuit 100, and the output terminal is connected to the laser emitter 105. The processor 102 is connected to the control terminal of the second switching module 103. Specifically, in this embodiment, the second switching module 103 is a field-effect transistor module, including a P-channel MOSFET Q2 and a MOSFET Q2 driving circuit composed of an NPN transistor Q3, resistors R2 and R3, and a Schottky diode D1. The drain of the MOSFET Q2 is connected to the output terminal of the laser driving circuit 100, the source of the MOSFET Q2 is connected to the input terminal of the laser emitter 105, the anode of the Schottky diode D1 is connected to the source of the MOSFET Q2, and the cathode of the Schottky diode D1 is connected to the drain of the MOSFET Q2 to provide a continuous current during the off-state of the MOSFET Q2. A current-carrying loop is used to reduce ringing and high-frequency noise of MOSFET Q2. The gate (G) of MOSFET Q2 is connected to the collector of NPN transistor Q3. A resistor R3 is connected to the collector of NPN transistor Q3. One end of resistor R3 is connected to the VCC power supply. The emitter of NPN transistor Q3 is connected to GND. The collector of NPN transistor Q3 is connected to the I / O port of processor 102 through resistor R2. Processor 102 controls the on / off state of NPN transistor Q3 by inputting a PWM pulse width signal at one end of resistor R2, thereby changing the level of the gate of MOSFET Q2. This controls the cutoff or conduction between the drain and source of MOSFET Q2, thereby controlling the average current input to laser emitter 105 of laser drive circuit 100, and thus controlling the output laser power of laser emitter 105.
[0028] Vibration sensor module 107 is connected to processor 102. Vibration sensor module 107 is used to detect the motion state of laser. Specifically, in this embodiment, vibration sensor module 107 can be selected as SW-18010P vibration sensor module, and its circuit structure is as follows. Figure 2 As shown, when the laser is stationary, the high-sensitivity vibration switch SW-18010P is not conducting. At this time, the voltage at the non-inverting input of the comparator U1.1 is higher than the voltage division from the adjustable resistor R6, and the comparator U1.1 outputs a high level. When the laser is in motion, the high-sensitivity vibration switch SW-18010P closes, the voltage at the non-inverting input of the comparator U1.1 is pulled low and is lower than the voltage division from the adjustable resistor R6, and the comparator U1.1 outputs a low level. The processor 102 determines whether the laser is in motion or stationary based on the output level of the vibration sensor module 107. The processor 102 obtains the stuttering time of the pan-tilt unit 200 by recording the time when the vibration sensor module 107 changes from a high level to a low level. In this embodiment, the processor 102 can be a microcontroller of the STC8H2K12U series. The processor 102 records the time when the vibration sensor module 107 changes from a high level to a low level through an internal timer.
[0029] The working process of this utility model is as follows: During normal operation, the gimbal 200 drives the laser to drive birds according to the user-set cruise route. The laser drive circuit 100 inputs drive voltage and current to the laser emitter 105, so that the laser emitter 105 generates a 532nm green bird-repelling laser. The processor 102 collects the movement of the laser in real time through the vibration sensor module 107. When the gimbal 200 lags, the laser also lags. If the lag time is within 2 to 5 seconds, the processor 102 outputs a first PWM control signal to the control terminal of the second switch module 103, so that the second switch module 103 performs high-speed switching, thereby reducing the average current input from the laser drive circuit 100 to the laser emitter 105, thereby reducing the output laser power of the laser emitter 105. When the gimbal 200 lags between 5 and 8 seconds, the processor 102 outputs a second PWM control signal to the second... The control terminal of the switch module 103 ensures that the average current input to the laser emitter 105 through the laser drive circuit 100 is less than the trigger current of the laser emitter 105, thus putting the laser emitter 105 into a standby, no-output state. When the gimbal 200 is stuck for more than 8 seconds, the processor 102 outputs a control signal to the control terminal of the first switch module 101, causing the relay module of the first switch module 101 to cut off the input power of the laser, de-energizing the laser drive circuit 100 and stopping the laser emitter 105 from working. Through the above operations, the laser emitter 105 is locked, limiting its output to a low power, preventing it from triggering standby or shutdown states. This effectively avoids the laser emitted by the gimbal 200 from remaining in a certain position within the bird-repelling protection area for too long when the gimbal 200 malfunctions, which could cause burns or damage to the facilities at that location, or even lead to a fire and property loss.
[0030] Based on the above embodiments:
[0031] As an optional embodiment, the self-locking circuit includes a triaxial accelerometer 106 connected to a processor 102. The triaxial accelerometer 106 collects the motion acceleration of the laser as it rotates following the gimbal 200. The processor 102 calculates the angle transformation of the laser in three-dimensional space according to a corresponding angle calculation formula. The user sets a specific angle for the laser. When the processor 102 detects that the laser has rotated to the set angle via the triaxial accelerometer 106, the processor 102 adjusts the duty cycle of the second switch module 103 to allow the laser to rotate to the set angle. The average current input from the light driving circuit 100 to the laser emitter 105 is less than the trigger current of the laser emitter 105, so that the laser emitter 105 is in standby mode and does not emit laser, thereby protecting the laser-sensitive equipment (camera monitoring equipment) installed on the laser patrol route in the bird deterrence protection area. In specific implementation, the triaxial acceleration sensor 106 can be a triaxial gravity acceleration sensor of model ADXL335. Using a triaxial gravity acceleration sensor to obtain the rotation angle of an object is existing technology, and its detailed working principle will not be described in detail in this embodiment.
[0032] As an optional embodiment, the self-locking circuit includes an overcurrent protection switch 104. The input terminal of the overcurrent protection switch 104 is connected to the output terminal of the second switch module 103, and the output terminal is connected to the laser emitter 105. When the laser driving circuit 100 malfunctions and causes the output current to exceed the current required for the normal operation of the laser emitter 105, the connection between the laser driving circuit 100 and the laser emitter 105 is disconnected. This limits the output power of the laser emitter 105 and prevents the laser power emitted by the laser emitter 105 from being too high, which could cause blindness in birds when the laser shines into their eyes. In this embodiment, the overcurrent protection switch 104 can be a reusable self-resetting fuse or a disposable fast-acting fuse.
[0033] As an optional embodiment, the laser bird deterrent device with self-locking protection function further includes a memory 108 and a wireless communicator 109. The memory 108 and the wireless communicator 109 are respectively connected to the processor 102. The memory 108 is used to store the gimbal lag signal collected by the processor 102 through the vibration sensor module 107. The signal includes the lag occurrence time and duration. The processor 102 sends the lag signal to the user's smart terminal device through the wireless communicator 109 to remind the user to maintain the gimbal in time and prevent the small fault of the gimbal from developing into a big fault. In this embodiment, the memory 108 can be selected as a 25C040 EEPROM storage chip, and the wireless communicator 109 can be selected as a 4G communication module of EC05-DGC.
[0034] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A laser bird deterrent device with self-locking protection function, characterized in that, include: The laser mounted on the gimbal includes a laser driving circuit, a self-locking circuit, and a laser emitter. The self-locking circuit includes a vibration sensor module, a first switch module, and a second switch module. The input terminal of the first switch module is connected to the input power supply of the laser, and the output terminal is connected to the input terminal of the laser driving circuit. The input terminal of the second switch module is connected to the output terminal of the laser driving circuit, and the output terminal is connected to the laser emitter. The processor is connected to the gimbal, the control terminal of the first switch module, the control terminal of the second switch module, and the vibration sensor module, respectively, to control the on / off state of the first switch module and the second switch module, receive the signal from the vibration sensor module, and control the first switch module and the second switch module based on the signal from the vibration sensor module, so as to control the laser output of the laser emitter.
2. The laser bird deterrent device with self-locking protection function according to claim 1, characterized in that, The first switching module is a relay module; the second switching module is a field-effect transistor module.
3. The laser bird deterrent device with self-locking protection function according to claim 1, characterized in that, The self-locking circuit includes a triaxial accelerometer, which is connected to the processor.
4. The laser bird deterrent device with self-locking protection function according to claim 2, characterized in that, The self-locking circuit includes an overcurrent protection switch, the input terminal of which is connected to the output terminal of the second switch module, and the output terminal is connected to the input terminal of the laser emitter.
5. The laser bird deterrent device with self-locking protection function according to claim 4, characterized in that, The overcurrent protection switch is a self-resetting fuse.
6. The laser bird deterrent device with self-locking protection function according to claim 4, characterized in that, The overcurrent protection switch is a fast-acting fuse.
7. The laser bird deterrent device with self-locking protection function according to claim 1, characterized in that, It also includes a memory and a wireless communicator, which are respectively connected to the processor.