Multi-channel detector
By designing a multi-channel detector with integrated camera, infrared camera and sound sensor in the mine environment, the problems of inefficiency and low accuracy of traditional detection methods are solved, and rapid and accurate detection of pipeline leakage is achieved, which is suitable for mines. environment, providing efficient fault location support.
Patent Information
- Application Number
- CN202421166130.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The traditional pipeline leakage detection method is inefficient, it is difficult to detect tiny leakage, and it is not suitable for mine environments. It is impossible to detect multiple signals such as visible light, infrared and sound at the same time. The detection accuracy is not high, and it is impossible to accurately judge the leakage position and degree. .
A multi-channel detector is designed, integrating cameras, infrared cameras, sound sensors and special gas detection probes, and detecting and processing multiple signals through signal acquisition boards and signal processing units, combining visible light, infrared and sound detection means. , has a compact and lightweight design suitable for mine environments, with high flexibility and scalability.
It realizes rapid and accurate detection of leakage conditions of pipelines or equipment, can quickly locate fault points, improves detection efficiency and accuracy, is suitable for environments such as mines with small spaces and complex environments, and provides strong support for subsequent maintenance work.
Smart Images
Figure CN222364704U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine safety detection, in particular to a multi-channel detector. Background Art
[0002] In mine operations, pipeline maintenance often faces many difficulties due to the complex layout of pipelines, numerous adapters, and the special underground environment. Traditional pipeline leakage detection methods often rely on manual inspections, which are not only inefficient but also difficult to detect small leaks. In addition, due to the harsh underground environment, it is difficult for workers to conduct inspections for a long time, which can easily lead to missed inspections or misdetections, posing a hidden danger to mine safety.
[0003] Although existing pipeline leakage detection instruments can improve detection efficiency to a certain extent, they still have some shortcomings. For example, some instruments can only detect a single type of leakage and cannot detect multiple signals such as visible light, infrared and sound at the same time; some instruments are large in size and are not suitable for use in narrow spaces such as underground mines; and some instruments have low detection accuracy and cannot accurately determine the location and extent of leakage. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a multi-channel detector.
[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a multi-channel detector, including a sensor probe body, a signal processing unit and a display, the sensor probe body includes a probe and a handheld handle connected to the rear end of the probe, a signal acquisition board is provided inside the handheld handle, and the probe is provided with a camera, an infrared camera and a plurality of acoustic sensors connected to the signal of the signal acquisition board, the output end of the signal acquisition board is electrically connected to the signal processing unit in the sensor probe body, and the signal processing unit is electrically connected to the display through a wire.
[0006] Furthermore, the signal acquisition board is connected to a gas probe and a CO2 probe fixed on the probe through interface A and interface B respectively.
[0007] Furthermore, the number of the acoustic sensors is four and they are circumferentially distributed on the front end surface of the probe.
[0008] Furthermore, the probe is also provided with a plurality of auxiliary lighting lamps connected to the signal acquisition board.
[0009] Furthermore, the signal processing unit includes an image synthesis module, an interface A digital synthesis module, an interface B digital synthesis module, a video decoding A module, a video decoding B module and several acoustic filters connected to the acoustic sensors accordingly, the acoustic filter is connected to the image synthesis module through an acoustic localization noise output module, the image synthesis module is connected to the display, the input ends of the interface A digital synthesis module and the interface B digital synthesis module are respectively connected to the interface A and the interface B, the input ends of the video decoding A module and the video decoding B module are respectively connected to the camera and the infrared camera, and the interface A digital synthesis module, the interface B digital synthesis module, the video decoding A module and the video decoding B module are all electrically connected to the image synthesis module.
[0010] Furthermore, the display is provided with a plurality of function keys.
[0011] Furthermore, a support frame is installed at the bottom of the display and a handle is provided at the upper end of the display.
[0012] The advantages of the utility model compared with the prior art are: the application realizes rapid and accurate detection of pipeline or equipment leakage by integrating a camera, an infrared camera, an acoustic sensor and a special gas detection probe. This detector is small in size, light in weight and easy to carry, and is very suitable for operation in special environments such as mines where space is small and the environment is complex. It can quickly locate the fault point through the combination of multiple detection methods such as visible light, infrared and sound, providing strong support for subsequent maintenance work. In addition, the detector is also highly flexible and scalable, and can adapt to the detection needs of different environments and different pipelines or equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a structural schematic diagram of a multi-channel detector.
[0014] Figure 2 The utility model is a schematic diagram of the back structure of a sensor probe body in a multi-channel detector.
[0015] Figure 3 The utility model is a principle structure diagram of a multi-channel detector.
[0016] As shown in the figure: 1. Sensor probe body, 2. Signal processing unit, 3. Display, 4. Probe, 5. Handheld handle, 6. Signal acquisition board, 7. Camera, 8. Acoustic sensor, 9. Interface A, 10. Interface B, 11. Auxiliary lighting, 12. Image synthesis module, 13. Interface A digital synthesis module, 14. Interface B digital synthesis module, 15. Video decoding A module, 16. Video decoding B module, 17. Acoustic filter, 18. Acoustic positioning noise output module, 19. Infrared camera, 20. Support frame, 21. Handle, 22. Gas probe, 23. CO2 probe. DETAILED DESCRIPTION
[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0018] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.
[0019] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.
[0020] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0021] Combined with Figure 1 -Attached Figure 3 A multi-channel detector includes a sensor probe body 1, a signal processing unit 2 and a display 3. The sensor probe body 1 includes a probe 4 and a handheld handle 5 connected to the rear end of the probe 4. A signal acquisition board 6 is arranged inside the handheld handle 5. The probe 4 is provided with a camera 7, an infrared camera 19 and a plurality of acoustic sensors 8 connected to the signal acquisition board 6. The output end of the signal acquisition board 6 is electrically connected to the signal processing unit 2 in the sensor probe body 1, and the signal processing unit 2 is electrically connected to the display 3 through a wire.
[0022] In one embodiment, in order to further enhance the function of the detector, the signal acquisition board 6 is connected to the gas probe 22 and the CO2 probe 23 through the interface A9 and the interface B10 respectively. The two probes are fixed on the probe 4, so that the detector can simultaneously detect the concentration of gas and carbon dioxide in the environment. This design is particularly useful in occasions where it is necessary to monitor multiple gas leaks at the same time, such as coal mines, chemical plants, etc. The gas probe 22 and the CO2 probe 23 convert the detected gas concentration signal into an electrical signal, respectively, and transmit it to the signal acquisition board 6 through the interface A9 and the interface B10, and then perform subsequent signal processing and display.
[0023] In order to meet the requirement of all-round monitoring of sound signals, the number of the sound sensors 8 in this embodiment is set to four, and the four sound sensors 8 are circumferentially distributed on the front face of the probe 4. Such a layout ensures that no matter which direction the leakage sound comes from, it can be captured by at least one sound sensor 8. By calculating the time difference and intensity difference of the sound signals received by the four sound sensors 8, the position of the leakage point can be further accurately located.
[0024] In some dark occasions, in order to ensure that the camera 7 and the infrared camera 19 can work normally, in this embodiment, a number of auxiliary lighting lamps 11 connected to the signal acquisition board 6 are added to the probe 4. These auxiliary lighting lamps 11 can be automatically turned on or off as needed to provide sufficient light for the camera 7 and the infrared camera 19, thereby ensuring the accuracy and reliability of the detection results.
[0025] In one embodiment, the signal processing unit 2 includes an image synthesis module 12, an interface A digital synthesis module 13, an interface B digital synthesis module 14, a video decoding A module 15, a video decoding B module 16, and a plurality of acoustic filters 17 connected to the acoustic sensor 8, the acoustic filter 17 is connected to the image synthesis module 12 through the acoustic localization noise output module 18, the image synthesis module 12 is connected to the display 3, the input ends of the interface A digital synthesis module 13 and the interface B digital synthesis module 14 are respectively connected to the interface A9 and the interface B10, the input ends of the video decoding A module 15 and the video decoding B module 16 are respectively connected to the camera 7 and the infrared camera 19, and the interface A digital synthesis module 13, the interface B digital synthesis module 14, the video decoding A module 15 and the video decoding B module 16 are all electrically connected to the image synthesis module 12. The signal processing unit 2 realizes the processing and integration of complex signals through the coordinated work of multiple modules inside it. Specifically, the video signals captured by the camera 7 and the infrared camera 19 are first processed by the video decoding A module 15 and the video decoding B module 16. These two modules are responsible for decoding the video signals based on specific compression rules and restoring them to recognizable normal signals for subsequent processing. At the same time, the interface A digital synthesis module 13 and the interface B digital synthesis module 14 receive the 1-5V analog signals from the interface A9 and the interface B10 respectively, and convert them into 16-bit digital signals to digitally process analog data such as gas concentration. The sound signal captured by the acoustic sensor 8 is filtered out by the corresponding acoustic filter 17, and is positioned by the acoustic positioning noise output module 18. Finally, the image synthesis module 12 receives data from the video decoding module, the digital synthesis module and the acoustic positioning noise output module, and generates complete detection information after comprehensive processing, and displays it to the user through the display 3. The entire signal processing process realizes the digital processing and integration of video signals, gas concentration signals and sound signals, and improves the data processing capability and detection accuracy of the detector.
[0026] In one embodiment, a plurality of function keys are also provided on the display 3. The user can use these keys to perform various operation settings on the detector, such as selecting a detection mode, adjusting the frequency bandwidth of the sound filter, etc. In addition, in order to facilitate the user to place and carry the detector, a support frame 20 is installed at the bottom of the display 3, and a handle 21 is provided at the upper end of the display 3. These designs greatly improve the practicality and portability of the detector.
[0027] Working principle: This application is a highly sensitive instrument for multi-source simultaneous detection, equivalent to human eyes, ears and nose, but with a much higher sensitivity than human senses.
[0028] First, the image information collected by camera 7 and infrared camera 19 can be used to establish a detection area. This detection area is 1 to 3 meters away from the sensor probe body. When the light is dim or the heat source needs to be detected, the image can be switched to infrared mode, and the leakage of high-temperature gas or liquid can be intuitively seen on the image on display 3.
[0029] Highly sensitive acoustic sensors 8 are installed at four positions on the sensor probe body 1, which are specially used to monitor the noise of high-pressure gas or liquid ejected from a small hole at a specific frequency. When gas leaks from a pipeline, container or system, ultrasonic waves are generated due to pressure difference and friction. The frequencies of these ultrasonic waves are generally distributed in the frequency band of 20kHz to 100kHz, and sometimes even higher. This high-frequency noise is inaudible to the human ear, so a special acoustic filter 17 is used to remove the background noise, and then the acoustic positioning program in the acoustic positioning noise output module 18 calculates the direction where the noise occurs, and the positioning coordinates are output to the image synthesis module 12, and the position of the leak point is displayed on the screen. In addition, the frequency bandwidth of the acoustic filter 17 can be selected through the function keys on the display 3 to adapt to the detection of different scenes.
[0030] The instrument is also equipped with interface A9 and interface B10. Different types of probes can be selected according to the needs to detect special gas molecules diffused in the surrounding air. The detected parameters will also be synchronously displayed on the screen of display 3, which is helpful for early warning of dangerous gas leakage. In addition to the above functions, the instrument is also equipped with auxiliary lighting 11, video storage card, USB interface and other accessories.
[0031] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A multi-channel detector, characterized in that: The invention comprises a sensor probe body (1), a signal processing unit (2) and a display (3); the sensor probe body (1) comprises a probe (4) and a hand-held handle (5) connected to the rear end of the probe (4); a signal acquisition board (6) is arranged inside the hand-held handle (5); a camera (7) connected to the signal acquisition board (6) and an infrared camera (19) and a plurality of acoustic sensors (8) are arranged on the probe (4); an output end of the signal acquisition board (6) is electrically connected to the signal processing unit (2) in the sensor probe body (1), and the signal processing unit (2) is electrically connected to the display (3) via a wire.
2. A multi-channel detector according to claim 1, characterized in that: The signal acquisition board (6) is also connected to a gas probe (22) and a CO2 probe (23) fixed on the probe (4) via an interface A (9) and an interface B (10) respectively.
3. A multi-channel detector according to claim 2, characterized in that: The acoustic sensors (8) are provided in four numbers and are circumferentially distributed on the front end surface of the probe (4).
4. A multi-channel detector according to claim 3, characterized in that: The probe (4) is also provided with a plurality of auxiliary lighting lamps (11) connected to the signal collection board (6).
5. A multi-channel detector according to claim 4, characterized in that: The signal processing unit (2) comprises an image synthesis module (12), an interface A digital synthesis module (13), an interface B digital synthesis module (14), a video decoding A module (15), a video decoding B module (16) and a plurality of acoustic filters (17) connected to the acoustic sensor (8) in correspondence, wherein the acoustic filter (17) is connected to the image synthesis module (12) via an acoustic localization noise output module (18), the image synthesis module (12) is connected to a display (3), the input ends of the interface A digital synthesis module (13) and the interface B digital synthesis module (14) are respectively connected to the interface A (9) and the interface B (10), the input ends of the video decoding A module (15) and the video decoding B module (16) are respectively connected to the camera (7) and the infrared camera (19), and the interface A digital synthesis module (13), the interface B digital synthesis module (14), the video decoding A module (15) and the video decoding B module (16) are all electrically connected to the image synthesis module (12).
6. A multi-channel detector according to claim 1, characterized in that: The display (3) is also provided with a plurality of function keys.
7. A multi-channel detector according to claim 6, characterized in that: A support frame (20) is installed at the bottom of the display (3) and a handle (21) is provided at the upper end of the display (3).