Fixed holder laser telemetering device
By integrating video monitoring equipment and background reflector plates in the laser telemetry device and using solar panels to power, the existing laser telemetry device has solved the problems of high cost, poor sensitivity and inability to meet outdoor detection requirements, and the sensitivity improvement and outdoor detection capabilities have been achieved.
Patent Information
- Application Number
- CN202420757871.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-12
AI Technical Summary
Existing laser telemetry devices are costly and have poor sensitivity, and cannot meet outdoor detection requirements.
A fixed gimbal laser telemetry device is designed, the video monitoring equipment and laser detection module are installed in a single cylinder, and the single cylinder is fixed on an overhead to align with the high incidence of gas leakage, and the background reflector plate is added to improve detection sensitivity, and power is supplied through solar panels to meet outdoor detection needs.
It achieves cost savings, improves detection sensitivity, and can meet outdoor gas detection needs, and has capture function and wireless upload function.
Smart Images

Figure CN222687976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser telemetry, in particular to a fixed pan-tilt laser telemetry device. Background Art
[0002] Currently, there are laser pan-tilt alarm devices on the market for detecting dangerous gases that may be harmful to the environment and human body in natural gas gate stations and gas storage stations, natural gas pipelines, petroleum and petrochemical refineries, chemical plants, etc., which can monitor methane leaks and videos in the environment at 360° left and right and 90° up and down. However, the above device solutions are relatively expensive, and the use of mobile point detection during the rotation of the pan-tilt may reduce the sensitivity of the instrument detection, and it needs to be powered by mains electricity, which is difficult to meet the gas detection needs when the mains power is off or in remote areas.
[0003] The utility model patent with application number 202321093326.4 discloses a pan-tilt fixed laser methane telemetry device that is easy to install, comprising: a fixed installation frame, an adjustment disk is arranged on the lower inner side of the fixed installation frame, and a first adjustment rod is arranged on the upper right side of the adjustment disk, a movable crank is arranged on the right end of the first adjustment rod, and a limit pin is arranged at the connection between the movable crank and the fixed installation frame, a second adjustment rod is arranged at the upper middle end of the adjustment disk, and a movable connecting block is arranged on the outer side of the upper end of the second adjustment rod, and a fixed limit rod connected to the fixed installation frame is arranged on the outer side of the lower end of the movable connecting block; a pan-tilt base is arranged above the movable connecting block, a connecting assembly is arranged at the connection between the pan-tilt base and the movable connecting block, and the connecting assembly consists of an adjusting bolt, a rubber ring and an adjusting nut, connecting sleeves are arranged on both sides of the upper end of the pan-tilt base, and a communication optical cable is arranged at the lower right end of the pan-tilt base, a laser detector body is arranged on the outer side of the connecting sleeve, and a protective cover is connected to the upper end of the laser detector body. The above patent is conducive to stable connection and installation, avoiding shaking during use, and can adjust the height as needed, thereby improving the practical effect of the device. However, the device is installed at a fixed angle, so it can only monitor in a set area. Utility Model Content
[0004] In view of the technical problems that the existing laser telemetry devices are high in cost, poor in sensitivity and cannot meet the needs of outdoor detection, the utility model proposes a fixed pan-tilt laser telemetry device, in which the video monitoring equipment and the laser detection module are installed in a monotube, and the monotube is fixed on an elevated frame and aimed at the high-incidence area of gas leakage, and a background reflector is placed thereafter to improve the detection sensitivity; when someone breaks in and stays temporarily or there is any illegal operation, video capture and recording can be carried out in time; solar panels are added for power supply to meet the needs of outdoor detection.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: a fixed pan-tilt laser telemetry device, including a fixed frame, a monocylinder is provided on the fixed frame, the monocylinder is facing the gas pipeline or gas storage station to be inspected, and a background reflection plate is provided on the other side of the gas pipeline or gas storage station to be inspected; a laser telemetry module and a video monitoring device are provided in the monocylinder, the laser telemetry module and the video monitoring device are both connected to a signal processing unit, and the signal processing unit is connected to a cloud platform through a wireless module; the background reflection plate is arranged on the output optical path of the laser telemetry module.
[0006] Preferably, a column is fixed at the lower part of the background reflection plate, and the column is fixed on the ground through a tripod; and the monocular is fixed to the top of the fixing frame through a pan-tilt head.
[0007] Preferably, the monotube is a cylindrical body, the video monitoring device is fixed on one side of a partition, the partition is fixed on the bottom surface of the cylindrical body, and the laser telemetry module is fixed at the center of the cylindrical body and located on the other side of the partition.
[0008] Preferably, a diagonal brace is fixedly provided on one side of the fixing frame, and a solar panel is provided on the diagonal brace; the solar panel is arranged on the rear side of the monotube, the solar panel is connected to the power supply module, and the power supply module is respectively connected to the laser telemetry module, the video monitoring equipment and the signal processing unit.
[0009] Preferably, the signal processing unit is connected to the laser telemetry module via an RS232 interface, the signal processing unit is connected to the video monitoring device via an RJ45 interface, the signal processing unit is connected to the wireless module via an IO port, and the wireless module uploads information to the cloud platform via 4G or Bluetooth.
[0010] The laser telemetry module includes a detection laser, a laser driving circuit and a photoelectric detection module. The laser driving circuit is connected to the detection laser. A collimator is provided in front of the light outlet of the detection laser. The detection laser and the collimator are arranged at the edge of a receiving lens. A receiving optical system is provided on the rear side of the receiving lens. A photoelectric detection module is provided near the focus of the receiving optical system. The photoelectric detection module and the laser driving circuit are both connected to a signal processing unit. The signal processing unit is connected to an audible and visual alarm system.
[0011] Preferably, a receiving lens is provided on the front side of the receiving optical system, and the receiving optical system is arranged at the focus of the receiving lens; the receiving optical system includes a plano-concave lens I, a filter, and a plano-convex lens II centered on the reflected light path; the photoelectric detection module includes a photodetector, a preamplifier circuit and a filter circuit connected in sequence, the photodetector is arranged near the focus of the plano-convex lens II of the receiving optical system, and the filter circuit is connected to the signal processing unit.
[0012] Preferably, the signal processing unit includes a DSP signal processing unit, a microprocessor, an AD module and a DA module, the microprocessor is connected to the wireless module, the DSP signal processing unit and the AD module respectively, the DSP signal processing unit is connected to the DA module, the DA module is connected to the laser driving circuit, and the AD module is connected to the filter circuit of the photoelectric detection module; the microprocessor is connected to the sound and light alarm system, the sound and light alarm system includes an alarm light and a buzzer connected in parallel, and the alarm light and the buzzer are both connected to the microprocessor.
[0013] Preferably, the video monitoring device comprises a camera and an edge processor, the camera is connected to the edge processor, and the edge processor is connected to a microprocessor of a signal processing unit; the edge processor comprises a CPU and a memory, the CPU is respectively connected to the microprocessor, the camera and the memory, an image processing module is provided on the CPU, and a gas concentration alarm threshold is provided on the memory.
[0014] Preferably, the power supply module includes a rechargeable battery, and the rechargeable battery is respectively connected to the laser telemetry module, the video monitoring equipment, and the signal processing unit through a power interface, and the rechargeable battery is connected to the solar panel.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] (1) Use a single tube installed at a fixed angle on a fixed frame to monitor areas with high incidence of gas leakage, saving costs, adding a background reflector, and improving detection sensitivity;
[0017] (2) Add a snapshot function to capture images in time when someone breaks in or makes illegal operations;
[0018] (3) The laser telemetry module is combined with the video monitoring equipment to realize platform-based image capture when someone breaks in or stays. When there is a gas leak in the environment, the system triggers an audible and visual alarm and starts the image capture function. The alarm value and the captured image are saved in the storage unit and uploaded to the cloud platform in real time through the wireless module.
[0019] (4) Adding solar modules to power the product not only allows it to continue to be used when the mains power is cut off, but also extends the service life of the laser telemetry equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 This is a rendering of the utility model.
[0022] Figure 2 It is the principle diagram of the utility model.
[0023] Figure 3 This is a schematic diagram of the structure of the laser telemetry module of the present utility model.
[0024] In the figure, 1 is a fixed frame, 2 is a monocular, 3 is a solar panel, 4 is a background reflector, 5 is a laser telemetry module, 6 is a video monitoring device, 7 is a signal processing unit, 8 is a power supply module, 9 is a wireless module, 10 is a cloud platform, 51 is a detection laser, 52 is a laser driving circuit, 53 is a collimator, 54 is a receiving lens, 55 is a receiving optical system, 56 is a photoelectric detection module, and 57 is an acoustic and visual alarm system. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] like Figure 1 As shown, a fixed pan-tilt laser telemetry device comprises a fixed frame 1, on which a monotube 2 is arranged, the monotube 2 is facing the gas pipeline or gas storage station to be detected, and a background reflection plate 4 is arranged on the other side of the gas pipeline or gas storage station, the background reflection plate 4 corresponds to the monotube 2, and the background reflection plate 4 is used to reflect the light emitted by the monotube 2. The monotube 2 is provided with a laser telemetry module 5 and a video monitoring device 6, as shown in FIG. Figure 2As shown, the laser telemetry module 5 and the video monitoring device 6 are both connected to the signal processing unit 7. The laser telemetry module 5 is used to emit laser to detect leaking gas, and the video monitoring device 6 is used to video monitor the gas pipeline or gas storage station to be detected. The monotube 2 sets the laser telemetry module and the video detection in the same monotube, which saves costs. The laser telemetry module 5 and the video monitoring device 6 are directly on the gas pipeline or gas storage station to be detected, and the background reflection plate 4 is set on the output light path of the laser telemetry module 5. The background reflection plate 4 reflects the laser beam emitted by the laser telemetry module 5 to improve the detection sensitivity. That is, the gas pipeline or gas storage station to be detected is set between the center of the laser telemetry module 5 and the center of the background reflection plate 4, so that the background reflection plate 4 is convenient to reflect the beam, thereby effectively detecting gas leakage. The placement position and height of the background reflection plate 4 vary according to the specific situation. If the ground space is limited, a column is fixed at the lower part of the background reflection plate 4, and the column is used to support the lower part of the background reflection plate 4, and the column is fixed to the ground through a tripod. The signal processing unit 7 is used to process the laser telemetry module 5 and the detected laser as well as the images collected by the video monitoring device 6 .
[0027] The monocular 2 is a cylindrical body, and its appearance is a metal fixed cylinder. The video monitoring device 6 and the laser telemetry module 5 are respectively located at the upper and lower positions inside the metal fixed cylinder. The video monitoring device 6 is fixed to one side of the L-shaped metal partition by screws, and the other side of the L-shaped metal partition is fixed to the bottom surface of the metal fixed cylinder at its rear by screws. The lower part fixes the laser telemetry module 5 to the center of the metal fixed cylinder by three screws. The monocular 2 is fixed to the top of the fixed frame 1 by a pan-tilt. The pan-tilt mainly plays a supporting role. After the monocular 2 with the laser telemetry module 5 and the video monitoring device 6 is installed on the pan-tilt, the horizontal and pitch angles of the monocular 2 can be adjusted by the adjustment mechanism. After the best working posture is achieved, the adjustment mechanism can be locked. The pan-tilt is a hydraulic pan-tilt, which can perform 360° horizontal pan and tilt shooting of plus or minus 90°. For example, the MASTER MK2 hydraulic pan-tilt can bear a load of 35KG, including a quick release plate, camera positioning pins, damping and dynamic balance system. The hydraulic head is usually installed on a ball-bowl tripod. After the head is installed, install the quick-release plate on the monotube 2, and then install it on the hydraulic head. According to the actual situation, make specific adjustments to the damping and dynamic balance system design of the head until it is adjusted to the appropriate position, and then turn the locking button to lock the hydraulic head in the set position.
[0028] A diagonal brace is fixed on one side of the fixed frame 1, and a solar panel 3 is arranged on the diagonal brace. The solar panel is used to convert solar energy into electrical energy. The solar panel 3 is arranged on the rear side of the monocular 2, and uses the photoelectric effect to convert the received light energy into electrical energy and store it in the battery, which is used to power the laser telemetry module 5 and the video monitoring device 6 without affecting the transmission of the light beam of the laser telemetry module 5; the solar panel 3 is connected to the power supply module 8. The power supply module 8 is powered by DC+24V, and is respectively connected to the laser telemetry module 5, the video monitoring device 6 and the signal processing unit 7, the signal processing unit 7 is connected to the wireless module 9, and the wireless module 9 is connected to the cloud platform 10. The signal processing unit 7 communicates with the laser telemetry module 5 through the RS232 interface, the signal processing unit 7 communicates with the video monitoring device 6 through the RJ45 interface, the signal processing unit 7 is connected to the wireless module 9 through the IO port, and the information is uploaded to the cloud platform 10 through Bluetooth communication.
[0029] The laser telemetry module 5 is used to detect dangerous gas leaks. Figure 3As shown, the laser telemetry module 5 includes a detection laser 51, a laser driving circuit 52, a collimator 53, a receiving lens 54, a receiving optical system 55 and a photoelectric detection module 56. A collimator 53 is provided in front of the light outlet of the detection laser 51, wherein the collimator 53 is used to convert the laser light emitted by the detection laser 51 into a parallel collimated light beam. The detection laser 51 and the collimator 53 are arranged at the edge of the receiving lens 54, and the scattered return light is irradiated onto the receiving lens 54 and is converged onto the receiving optical system 55. The receiving optical system 55 is arranged near the focus of the receiving lens 54. The receiving optical system 55 includes a group of plano-concave lenses I, a narrow-band filter, and a plano-convex lens II parallel to the optical axis of the receiving lens 54, and is placed near the focus of the receiving lens 54 to receive as much reflected light as possible. The plano-concave lens I plays a diverging role, and is used to transfer the received converged light beam to the narrow-band filter behind it as much as possible; the narrow-band filter removes stray light interference from the return light and transfers it to the convex side of the plano-convex lens II behind it, and the plano-convex lens II converges the filtered light beam to the photosensitive surface of the photodetector behind it. The photoelectric detection module 56 includes a photoelectric detector, a preamplifier circuit and a filter circuit connected in sequence. The photoelectric detector is located near the focus of the plano-convex lens II in the receiving optical system 55. The photoelectric detector is used to detect the light reflected by the receiving optical system 55 and convert it into an electrical signal. The electrical signal is amplified and filtered by the preamplifier circuit and the filter circuit respectively. The filter circuit of the photoelectric detection module 56 is connected to the signal processing unit 7. The signal processing unit 7 is connected to the laser driving circuit 52, and the laser driving circuit 52 is connected to the detection laser 51. The detection laser 51 is generally a semiconductor laser, such as a DFB laser with a model W1653B-12-B-SM-FPC and a peak wavelength of 1654nm, which is mainly used for methane gas detection; the photodetector is an InGaAs photodetector, such as the HAMAMATSU model G12181-010k InGaAs photodetector with an applicable wavelength of 1.85~1.9um, which can be used for methane gas detection. The laser drive circuit 52 includes a power supply for laser drive and temperature control, a laser drive and a TEC drive control circuit, such as a DRV591 model driver chip.
[0030] The signal processing unit 7 plays the role of signal generation, processing and transmission. It is mainly composed of a DSP signal processing unit, a microprocessor, an AD module and a DA module. The DSP signal processing unit is connected to the DA module, the DA module is connected to the laser driving circuit 52, the microprocessor is connected to the wireless module 7, the DSP signal processing unit, the AD module and the DA module respectively, and the AD module is connected to the filter circuit of the photoelectric detection module 56. The laser driving and modulation signals are generated by the DSP processing unit, and are converted into analog signals by the DA module and then input into the laser driving circuit 52, driving the detection laser 51 to emit a light beam, which passes through the collimator 53 and is emitted outward through the window. After passing through the gas cloud to be measured, the detection beam is irradiated onto the background reflection plate 4, and the reflected light carrying the gas concentration information is irradiated onto the receiving lens 54 of the receiving optical system 55 through the diffuse reflection effect of the background reflection plate 4 and converged. Then, the received light signal is converted into an electrical signal by the photoelectric detector, and then processed by the preamplifier and the filter circuit for phase-locked filtering, and then converted into a digital signal by the AD module and transmitted to the microprocessor of the signal processing unit 7 to obtain the concentration of the gas to be measured. The microprocessor adopts a dual-core microprocessor of STM32F407IGH model for data processing and communication. The model of the DSP signal processing unit can be a DSPIC30F6014A digital signal processor. The sound and light alarm system 57 includes a warning light and a buzzer connected in parallel, and the warning light and the buzzer are both connected to the microprocessor.
[0031] The video monitoring device 6 is used to monitor local gas leaks and capture suspicious personnel's illegal operations. The video monitoring device 6 is composed of a camera and an edge processor. The camera is connected to the edge processor, and the edge processor is connected to the microprocessor of the signal processing unit 7. The edge processor includes a CPU, a memory, and an integrated circuit, etc. The memory stores an existing computer program for image processing, including various program instructions. When these program instructions are executed by the microprocessor, the video monitoring device 6 has an image capture function, and uses the existing deep learning algorithm to analyze the monitoring screen in real time, and can capture the intruder picture and send an alarm. The edge processor reflects the gas concentration information collected by the signal processing unit 7 in the monitoring video, and the gas concentration alarm threshold can be set. The working modes of the video monitoring device 6 are divided into two types: timed capture mode and dangerous situation capture mode. The timed capture mode is: every half an hour, the edge processor sends a signal to the camera to control it to take an image and store it in the memory; the dangerous situation capture mode is: first, when there is a gas leak, the dangerous gas concentration value transmitted by the laser telemetry module 5 to the signal processing unit 7 exceeds the gas concentration alarm threshold set by the video monitoring device 6, then the edge processor will send an alarm signal to the signal processing unit 7 to trigger the sound and light alarm system 57, and at the same time send a signal to the camera to capture the area map of the gas leakage in real time; second, when a person breaks into the monitoring area, the edge processor processes the image information returned by the camera through the existing deep learning algorithm to capture the face, and sends a signal to the camera to control it to take the picture of the person breaking into the memory, and sends an alarm information to the signal processing unit 7 to trigger the sound and light alarm system 57 to make a sound and light alarm. The sound and light alarm is controlled by the signal processing unit 7 to flash the alarm light and vibrate the buzzer; the camera generally uses a CMOS image sensor, such as the smart cylindrical network camera of model DS-2CD2T56EF(D)WDA3-IS.
[0032] The wireless module 9 is mainly used to upload gas detection data and monitoring image information captured by the camera, and send it to the cloud platform 10 through Bluetooth communication according to a specific communication protocol, so as to facilitate remote monitoring by patrol personnel. The wireless module 9 generally uses Bluetooth, such as the Bluetooth chip model WH-BLE103 of Shanghai Wenheng.
[0033] The power supply module 8 includes a rechargeable battery, which is respectively connected to the laser telemetry module 5, the video monitoring device 6, and the signal processing unit 7 through a power interface. At the same time, the solar panel 3 is connected to the rechargeable battery. When there is no AC power outdoors, the solar panel 3 can convert solar energy into electrical energy of the required specifications. Under this condition, the laser telemetry module 5 and the video monitoring device 6 can still work normally.
[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fixed pan-tilt laser telemetry device, comprising a fixed frame (1), characterized in that: The fixed frame (1) is provided with a single cylinder (2), the single cylinder (2) is facing the gas pipeline or gas storage station to be detected, and a background reflection plate (4) is provided on the other side of the gas pipeline or gas storage station to be detected; a laser telemetry module (5) and a video monitoring device (6) are provided in the single cylinder (2), the laser telemetry module (5) and the video monitoring device (6) are both connected to a signal processing unit (7), and the signal processing unit (7) is connected to a cloud platform (10) via a wireless module; the background reflection plate (4) is arranged on the output optical path of the laser telemetry module (5).
2. The fixed PTZ laser telemetry device according to claim 1, characterized in that: A column is fixed at the bottom of the background reflection plate (4), and the column is fixed on the ground via a tripod; the monocular (2) is fixed to the top of the fixing frame (1) via a pan / tilt.
3. The fixed pan-tilt laser telemetry device according to claim 1 or 2, characterized in that: The monotube (2) is a cylindrical body, the video monitoring device (6) is fixed on one side of a partition, the partition is fixed on the bottom surface of the cylindrical body, and the laser telemetry module (5) is fixed at the center of the cylindrical body and located on the other side of the partition.
4. The fixed pan-tilt laser telemetry device according to claim 1 or 2, characterized in that: A diagonal brace is fixedly provided on one side of the fixing frame (1), and a solar cell panel (3) is provided on the diagonal brace; the solar cell panel (3) is arranged on the rear side of the monotube (2), the solar cell panel (3) is connected to a power supply module (8), and the power supply module (8) is respectively connected to a laser telemetry module (5), a video monitoring device (6), and a signal processing unit (7).
5. The fixed pan-tilt laser telemetry device according to claim 4, characterized in that: The signal processing unit (7) is connected to the laser telemetry module (5) via an RS232 interface, the signal processing unit (7) is connected to the video monitoring device (6) via an RJ45 interface, the signal processing unit (7) is connected to the wireless module (9) via an IO port, and the wireless module (9) uploads information to the cloud platform (10) via Bluetooth.
6. The fixed pan-tilt laser telemetry device according to claim 5, characterized in that: The laser telemetry module (5) comprises a detection laser (51), a laser driving circuit (52) and a photoelectric detection module (56); the laser driving circuit (52) is connected to the detection laser (51); a collimator (53) is provided in front of a light outlet of the detection laser (51); the detection laser (51) and the collimator (53) are arranged at the edge of a receiving lens (54); a receiving optical system (55) is provided at the focus of the receiving lens (54); a photoelectric detection module (56) is provided near the focus of the receiving optical system (55); the photoelectric detection module (56) and the laser driving circuit (52) are both connected to a signal processing unit (7); and the signal processing unit (7) is connected to an audible and visual alarm system (57).
7. The fixed PTZ laser telemetry device according to claim 6, characterized in that: A receiving lens (54) is provided on the front side of the receiving optical system (55), and the receiving optical system (55) is arranged at the focus of the receiving lens (54); the receiving optical system (55) comprises a plano-concave lens I centered on the reflected light path, a filter, and a plano-convex lens II; the photoelectric detection module (56) comprises a photoelectric detector, a preamplifier circuit, and a filter circuit connected in sequence, the photoelectric detector is arranged near the focus of the plano-convex lens II of the receiving optical system (55), and the filter circuit is connected to the signal processing unit (7).
8. The fixed pan-tilt laser telemetry device according to any one of claims 5 to 7, characterized in that: The signal processing unit (7) comprises a DSP signal processing unit, a microprocessor, an AD module and a DA module; the microprocessor is connected to the wireless module (9), the DSP signal processing unit and the AD module respectively; the DSP signal processing unit is connected to the DA module; the DA module is connected to the laser driving circuit (52); and the AD module is connected to the filter circuit of the photoelectric detection module (56); the microprocessor is connected to the sound and light alarm system (57); the sound and light alarm system (57) comprises an alarm light and a buzzer connected in parallel; the alarm light and the buzzer are both connected to the microprocessor.
9. The fixed PTZ laser telemetry device according to claim 8, characterized in that: The video monitoring device (6) is composed of a camera and an edge processor, the camera is connected to the edge processor, and the edge processor is connected to the microprocessor of the signal processing unit (7); the edge processor includes a CPU and a memory, the CPU is connected to the microprocessor, the camera and the memory respectively, and the memory is provided with a gas concentration alarm threshold.
10. The fixed pan-tilt laser telemetry device according to claim 8, characterized in that: The power supply module (8) comprises a rechargeable battery, which is respectively connected to the laser telemetry module (5), the video monitoring device (6), and the signal processing unit (7) via a power supply interface, and the rechargeable battery is connected to the solar panel (3).
Citation Information
Patent Citations
Holder fixing type laser methane telemetering device convenient to install
CN219799208U