Vehicle-mounted natural gas leakage detection device
By designing a rotatable and pitched vehicle-mounted natural gas leak detection device, the problem of insufficient detection of existing equipment in high object occlusion environments is solved, achieving wider detection coverage and efficient leakage detection.
Patent Information
- Application Number
- CN202421555668.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing vehicle-mounted overhead laser gas detection equipment has a single use environment and cannot adapt to environments with high object occlusion, resulting in narrow detection coverage, poor alignment, and inability to adapt to multiple application scenarios.
A vehicle-mounted natural gas leakage detection device is designed, including overhead equipment and system control module. The overhead equipment consists of a lifting base, an electric gimbal and a detection indication module. The electric gimbal can rotate 360° and pitch at -45°~+90°. The detection indication module includes a laser gas telemeter and a camera, and flexible detection direction and height adjustment are achieved through slip ring and motor drive.
The device can adapt to environments with high object shading, improve detection coverage and alignment, and is suitable for a variety of application scenarios, such as underground pipelines, outdoor risers and inspections of rural residents, reducing the risk of missed inspections.
Smart Images
Figure CN222780363U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of natural gas leakage inspection, and in particular relates to a vehicle-mounted natural gas leakage detection device. Background Art
[0002] The existing vehicle-mounted laser gas detection equipment is a single-point detection, that is, the laser gas detector emits a beam of point-shaped laser, and the laser irradiates the detection target. If there is gas leakage in the target, the laser gas detector will sound an alarm. When moving, the vehicle is started to perform long-distance continuous measurement of the target.
[0003] The existing technology has the following problems: 1. Narrow coverage: Single-point laser detection can only detect a small area illuminated by the laser point, while the actual application scenario generally requires surface detection. For example, the area where the leakage of underground gas pipelines emerges from the surface is related to the hardness of the soil at that location. There is uncertainty in the location and range. The coverage of single-point detection is small, and it is very easy to miss detection. 2. Poor alignment: When the vehicle-mounted top-mounted laser gas detection equipment is moving for detection, it cannot ensure that the target to be detected is completely parallel to the vehicle. It is difficult to align the detection laser with the target to be detected by adjusting the vehicle's driving trajectory in real time. It is also easy to miss detection when the vehicle speed is fast, and even traffic safety accidents are prone to occur. 3. The use environment is single and cannot adapt to the environment of high object obstruction: At present, the vehicle-mounted detection equipment is only suitable for detecting underground pipeline leaks, and has not been adapted to applications such as patrolling outdoor risers in residential areas and patrolling rural residents. Utility Model Content
[0004] The problem to be solved by the utility model is that the existing vehicle-mounted top-mounted laser gas detection equipment has a single use environment and cannot adapt to the environment where high objects block it.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] A vehicle-mounted natural gas leak detection device includes a top-mounted device and a system control module electrically connected to the top-mounted device. The top-mounted device is arranged on the top of a vehicle. The top-mounted device includes an electric pan-tilt head and a detection indication module arranged on the electric pan-tilt head. The detection indication module includes a laser gas telemeter and a camera. The laser gas telemeter and the camera are arranged in parallel on the electric pan-tilt head. The device also includes a lifting base arranged on the top of the vehicle. The electric pan-tilt head is arranged on the lifting base. The system control module is used to control the movement of the electric pan-tilt head and the lifting base, and process the detection information of the detection indication module.
[0007] Furthermore, the electric pan-tilt head includes a pan-tilt head base and a slip ring. The pan-tilt head base includes an upper base and a lower base. The slip ring is arranged between the upper base and the lower base. The slip ring is connected to the upper base and the lower base through bearings.
[0008] Furthermore, the laser output center of the laser gas telemeter coincides with the image output center of the camera.
[0009] Furthermore, the lifting base includes a lifting motor, and the lifting base is a scissor-type lift.
[0010] Furthermore, the system control module includes a front panel, a rear panel, and controllers disposed in the front panel and the rear panel.
[0011] Furthermore, a transport handle, a display screen, a switch, and a Bluetooth antenna are arranged on the front panel.
[0012] Furthermore, the system control module is wirelessly connected to the inspection terminal iPAD.
[0013] Furthermore, the camera is equipped with a built-in wireless transceiver, through which the video of the camera is transmitted to the inspection terminal iPAD.
[0014] Furthermore, the power supply of the system control module is a vehicle-mounted 12V DC power supply.
[0015] Furthermore, the detection data of the laser gas telemeter communicates with the system control module wirelessly or by wire.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. The overhead equipment of the utility model drives the electric pan-tilt head to rise and fall through the lifting movement of the lifting base, thereby adjusting the height of the detection indication module. It can adapt to the environment blocked by high objects and avoid the detection light from being blocked. It is not only suitable for detecting underground pipeline leakage, but also for patrolling outdoor risers in residential areas and rural residents.
[0018] 2. The forward and backward movement of the slip ring of the utility model can drive the detection indication module to move forward and backward, thereby increasing the detection range of the detection indication module. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the vehicle-mounted natural gas leakage detection device of the utility model;
[0020] Figure 2 This is a schematic diagram of the application of the vehicle-mounted natural gas leakage detection device of the utility model when working in a horizontal environment.
[0021] Reference numerals:
[0022] 1-lifting base; 2-electric pan / tilt; 21-pan / tilt base; 211-upper base; 212-lower base; 22-slip ring; 3-detection indication module; 31-laser gas telemeter; 32-camera; 4-system control module; 5-path one; 6-path two; 7-vehicle travel direction; 8-vehicle; 9-detection laser. DETAILED DESCRIPTION
[0023] The technical solution of the utility model will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without making creative work are within the protection scope of the utility model.
[0024] It should be noted that the terms "center", "up", "down", "horizontal", "left", "right", "front", "back", "lateral", "longitudinal", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0025] The utility model provides a vehicle-mounted natural gas leakage detection device, which is used as a gas detection device for long-distance urban natural gas pipeline network inspection. The gas detection device emits two laser beams, a green indicator laser pointing to the detection area, and an accompanying invisible infrared laser to measure the unit concentration (ppm.m) of methane gas existing at a long distance.
[0026] The vehicle-mounted natural gas leakage detection device includes a top-mounted device arranged on the top of the vehicle, and a system control module 4 inside the vehicle.
[0027] The overhead device includes a lifting base 1 arranged on the top of the vehicle, an electric pan head 2 arranged on the lifting base 1, and a detection indicating module 3 arranged on the electric pan head 2.
[0028] The electric pan-tilt head 2 is connected to the detection indication module 3 through a bearing and a retaining spring. The electric pan-tilt head 2 can rotate 360° clockwise or counterclockwise in the horizontal direction; it can rotate freely within the range of -45° to +90° in the vertical direction, that is, it can tilt downward by 0-45° and tilt upward by 0-90°. Then, the electric pan-tilt head 2 drives the detection indication module 3 to rotate freely, thereby increasing the detection coverage area of the detection indication module 3.
[0029] The electric pan-tilt head 2 has a housing, and the electric pan-tilt head 2 includes a pan-tilt head base 21, a slip ring 22, a horizontal motor, and a vertical motor. The pan-tilt head base 21 includes an upper base 211 and a lower base 212. The slip ring 22 is arranged between the upper base 211 and the lower base 212, and the slip ring 22 is connected to the upper base 211 and the lower base 212 through a bearing. The forward and backward movement of the slip ring 22 can drive the detection indication module 3 to move forward and backward.
[0030] The horizontal motor and the vertical motor are arranged in parallel on both sides of the pan-tilt base 21. The horizontal motor and the vertical motor are located inside the housing of the electric pan-tilt 2 (not shown in the figure), and the detection indication module 3 is located between the horizontal motor and the vertical motor. The horizontal motor can drive the electric pan-tilt 2 to rotate 360° clockwise or counterclockwise in the horizontal direction; the vertical motor can drive the electric pan-tilt 2 to rotate freely in the vertical direction within -45° to +90°, that is, it can tilt down 0-45° and tilt up 0-90°.
[0031] The detection indication module 3 includes a laser gas telemeter 31 and a camera 32. The laser gas telemeter 31 and the camera 32 are arranged on the electric pan / tilt platform 2, and the laser gas telemeter 31 is arranged above the camera 32. The laser output center of the laser gas telemeter 31 is arranged to coincide with the image output center of the camera 32, so that the area to be detected can be indicated by video. During the detection process, the laser output center can be adjusted in real time to align with the area to be detected by observing the video image, ensuring that the shooting field of view of the camera 32 covers the detection range of the laser gas telemeter 31, thereby improving the alignment with the detection target.
[0032] Driven by the horizontal motor and the vertical motor, the laser gas telemeter 31 and the camera 32 rotate freely and synchronously, thereby realizing flexible detection of the laser gas telemeter 31. The laser gas telemeter 31 can realize surface detection, improve the coverage of detection, and reduce the occurrence of missed detection.
[0033] The pan-tilt base 21 is threadedly connected to the lifting base 1, and the lifting base 1 includes a lifting motor. The lifting base 1 adopts a scissor-type lift in the prior art. The lifting motor drives the lifting base 1 to rise and fall, thereby driving the electric pan-tilt 2 to rise and fall, thereby playing a role in adjusting the height of the detection indicator module 3. It can adapt to the environment blocked by high objects to avoid the detection light being blocked. It can not only be used to detect underground pipeline leakage, but also can adapt to the inspection of outdoor risers in residential areas and rural residents.
[0034] The pan / tilt base 21 is provided with a cable interface and a grounding port, and the system control module 4 is connected to the cable interface through a cable to connect the power of the overhead device to the vehicle-mounted 12V DC power supply.
[0035] The detection indication module 3, the electric pan / tilt head 2, and the lifting motor are connected to the system control module 4 through cables.
[0036] The system control module 4 includes a front panel, a rear panel, and controllers disposed in the front panel and the rear panel.
[0037] The front panel is the system control panel, on which are provided a transport handle, display screen, switch, Bluetooth antenna, and debugging control interface; the rear panel is the connection interface, on which are provided a controller point input port, overhead device connection port, and WIFI antenna.
[0038] The power supply of the system control module 4 is usually connected to the vehicle-mounted 12V DC power supply. The system control module 4 supplies power and data to the overhead device through a cable, and is connected to the inspection terminal through WIFI and Bluetooth, such as an iPAD.
[0039] The detection data of the laser gas remote detector 31 communicates with the system control module 4 via the RS-485 bus in the cable.
[0040] The real-time video of the camera 32 relies on the built-in IEEE 802.11n wireless transceiver of the camera 32 to be directly sent to the inspection terminal, which can then be guided to aim at the inspection target.
[0041] The system control module 4 flexibly sets the motion path of the electric pan / tilt 2 according to the application environment, sets the angle between the pre-detection path and the vehicle driving path, and the reciprocating detection width along the target to be detected, thereby meeting the requirements of wide detection range, curved path setting, and adapting to various detection environments. The point detection is added with an automatic path, and the point detection is changed to a line type. Non-single straight line operation can be achieved by setting the path. It is ensured that the laser gas telemeter 31 is completely parallel to the detection target. In order to adapt to the detection environment perpendicular to the ground, a vertical reciprocating inspection can be set.
[0042] A sunshade is provided on the top of the detection indicating module 3 to protect the laser gas telemeter 31 and the camera 32 .
[0043] Embodiment 1
[0044] like Figure 1 As shown, based on the specific implementation scheme of the utility model, this embodiment provides a conventional use of a vehicle-mounted natural gas leak detection device as a natural gas leak detection method in a horizontal environment, that is, a vehicle-mounted natural gas leak detection device, which performs horizontal scanning and detection of roadside green belts along the direction of vehicle travel, and is used to realize natural gas leak detection in a horizontal environment.
[0045] Specifically, Figure 2 As shown,
[0046] The vehicle 8 is traveling along the vehicle travel direction 7;
[0047] The electric pan-tilt head 2 moves in the horizontal direction according to the preset angle range of the system control module 4, the detection indication module 3 moves synchronously with the electric pan-tilt head 2, the laser gas telemeter 31 emits the detection laser 9 in the direction of the vehicle, and the laser is aligned by the camera 32 to perform horizontal scanning and detection on the roadside green belt, forming a path 5 of the laser gas telemeter 31;
[0048] The system control module 4 controls the slider 22 to move, and the laser gas telemeter 31 changes to the path 2 6 .
[0049] Embodiment 2
[0050] like Figure 1 As shown, based on the specific implementation scheme of the utility model, this embodiment provides an innovative use method of a vehicle-mounted natural gas leak detection device, as a natural gas leak detection method in a vertical environment, that is, a vehicle-mounted natural gas leak detection device. When performing horizontal environment detection in Example 1, since the pitch angle range of the vehicle-mounted natural gas leak detection device is -45° to +90°, when passing by a high-rise building, it is possible to stop the vehicle and perform vertical scanning and detection of the external gas pipeline of the high-rise building, so as to realize natural gas leak detection in a vertical environment.
[0051] Specifically,
[0052] When performing natural gas leak detection in a horizontal environment, the system control module 4 stops the vehicle when it detects a high building;
[0053] The system control module 4 adjusts the pitch angle of the laser gas telemeter 31, and the laser gas telemeter 31 performs vertical scanning detection on the external gas pipeline of the high-rise building; further, by setting a fixed pitch angle, it focuses on detecting whether there is gas leakage in the high-rise building's prone-to-leakage area, thereby reducing equipment debugging time and accelerating detection efficiency;
[0054] The height of the lifting base 1 is controlled by the system control module 4 to raise the height position of the detection indication module 3, so that the detection indication module 3 has a long-distance detection capability. Even if the building is very high and the leakage is very small, the vehicle-mounted natural gas leak detection device of the utility model can also achieve the purpose of effective detection.
[0055] The above technical features constitute the best implementation example of the present utility model, which has strong adaptability and best implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the needs of different situations.
[0056] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.
Claims
1. A vehicle-mounted natural gas leak detection device, comprising a top-mounted device and a system control module electrically connected to the top-mounted device, wherein the top-mounted device is arranged on the top of the vehicle, the top-mounted device comprises an electric pan-tilt platform, and a detection indication module arranged on the electric pan-tilt platform, wherein the detection indication module comprises a laser gas telemeter and a camera, wherein the laser gas telemeter and the camera are arranged in parallel on the electric pan-tilt platform, wherein: It also includes a lifting base arranged on the top of the vehicle, an electric pan head arranged on the lifting base, and a system control module for controlling the movement of the electric pan head and the lifting base, and processing the detection information of the detection indication module.
2. The vehicle-mounted natural gas leakage detection device according to claim 1, characterized in that: The electric pan-tilt head comprises a pan-tilt head base and a slip ring. The pan-tilt head base comprises an upper base and a lower base. The slip ring is arranged between the upper base and the lower base. The slip ring is connected to the upper base and the lower base through bearings.
3. The vehicle-mounted natural gas leakage detection device according to claim 1, characterized in that: The laser output center of the laser gas telemeter coincides with the image output center of the camera.
4. The vehicle-mounted natural gas leakage detection device according to claim 1, characterized in that: The lifting base comprises a lifting motor, and the lifting base is a scissor-type lift.
5. The vehicle-mounted natural gas leakage detection device according to claim 1, characterized in that: The system control module includes a front panel, a rear panel, and controllers arranged in the front panel and the rear panel.
6. The vehicle-mounted natural gas leakage detection device according to claim 5, characterized in that: The front panel is equipped with a transport handle, display screen, switch, and Bluetooth antenna.
7. The vehicle-mounted natural gas leakage detection device according to any one of claims 1 to 6, characterized in that: The system control module is wirelessly connected to the inspection terminal iPAD.
8. The vehicle-mounted natural gas leakage detection device according to claim 7, characterized in that: The camera has a built-in wireless transceiver, which transmits the camera's video to the inspection terminal iPAD through the wireless transceiver.
9. The vehicle-mounted natural gas leakage detection device according to any one of claims 1 to 6, characterized in that: The power supply of the system control module is the vehicle-mounted 12V DC power supply.
10. The vehicle-mounted natural gas leakage detection device according to any one of claims 1 to 6, characterized in that: The detection data of the laser gas remote sensor communicates with the system control module wirelessly or wired.