A method of detecting the relative spatial configuration of a side opening and a potential ignition source and apparatus therefor
By combining various technical means, intelligent, convenient, and accurate testing of electronic products has been achieved, solving the technical problems of existing testing technologies and providing a detection method for the spatial structure of side openings and potential ignition sources, thereby improving the intelligence and accuracy of the testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-17
- Publication Date
- 2026-03-27
AI Technical Summary
In the existing technology, the detection methods for the spatial structure of the side openings of the fireproof protective shell of electronic products relative to potential ignition sources are poor in terms of operability, reproducibility, and accuracy, and lack universal, convenient and accurate detection means.
It adopts a combination of main control module, magnetic angle meter module, visual laser rangefinder module and camera module. The visual laser rangefinder module emits laser beams, the camera module acquires path images, and the main control module automatically determines the position of the side opening and potential ignition source, meeting the angle and distance requirements of safety standards.
It enables intelligent, convenient, and accurate detection of the spatial structure between side openings and potential ignition sources in electronic products, and is applicable to electronic products of various structures, improving the versatility and feasibility of the detection.
Smart Images

Figure CN116242257B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a method and device for detecting the relative spatial structure between the side opening of an electronic product shell and a potential ignition source. BACKGROUND
[0002] The fireproof structure of electronic products is related to personal and property safety, and is a key project in the research and design of electronic products, and is a key focus in safety regulation testing. However, due to the different internal structures of electronic products and the various forms of side openings of electronic products, there are generally poor operability, poor reproducibility, and low accuracy in the existing detection methods for the suitability of the relative spatial structure between the side opening of an electronic product shell and a potential ignition source. Therefore, there is an urgent need for a general, convenient, and accurate method, device, storage medium, and detection equipment for measuring and judging the suitability of the relative spatial structure between the side opening and the potential ignition source. SUMMARY
[0003] The main purpose of the present application is to provide a method and device for detecting the relative spatial structure between the side opening of an electronic product shell and a potential ignition source, aiming to improve the universality, convenience, intelligence, and accuracy of detecting the suitability of the relative spatial structure between the side opening and the potential ignition source. To achieve the above purpose, the present application provides the following technical solutions:
[0004] A device for detecting the relative spatial structure between the side opening and the potential ignition source, the device comprising: a main control module, a magnetic angle instrument module, a visual laser ranging module, and a camera module, wherein the main control module is connected to the magnetic angle instrument module, the visual laser ranging module, and the camera module respectively;
[0005] The main control module is used to control the magnetic angle instrument module to adjust the relative positions of the visual laser ranging module and the camera module with respect to the electronic product to be tested, so that the camera module and the visual laser ranging module are located outside the side opening of the electronic product, and the distance between the laser emission port of the visual laser ranging module and the outer edge g of the lower surface f of the side opening of the electronic product is d, d = 3mm;
[0006] The visual laser ranging module emits a visual laser beam from the outside of the side opening of the electronic product to the inside of the electronic product, and the included angle between the direction of the visual laser beam away from the center of the earth and the vertical line away from the center of the earth is a, wherein a is not greater than 5°;
[0007] The visual laser ranging module is further used to measure the distance L from the starting point to the ending point of the visual laser beam, and the ending point is the intersection point between the visual laser beam and the first obstacle encountered after being emitted;
[0008] The camera module is configured to obtain a path image of the visible laser ray from a starting point to an ending point.
[0009] The master module is further configured to obtain a spatial position relationship between the ending point and a potential ignition source inside the electronic product according to the path image obtained by the camera module, and determine the suitability of the relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship; if the ending point is located within the boundary of the potential ignition source region or within a range of L×sinα≤15 mm, it is determined that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is determined that the relative spatial structure of the side opening and the potential ignition source is qualified.
[0010] The potential ignition source is a circuit, module, component or device inside the electronic product that has sufficient power energy to ignite and sustain combustion.
[0011] The visible laser ranging module simultaneously emits a plurality of visible laser rays.
[0012] The visible laser ranging module simultaneously emits the visible laser rays within an angle range of 0° to 5°.
[0013] If the ending point of the path of any of the visible laser rays is located within the boundary of the potential ignition source region or within a range of L×sinα≤15 mm, it is determined that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is determined that the relative spatial structure of the side opening and the potential ignition source is qualified.
[0014] The suitability of the relative spatial structure of the side opening and the potential ignition source determined by the master module according to the spatial position relationship is automatically completed by the master module.
[0015] The potential ignition source is a circuit, module, component or device inside the electronic product that has sufficient power energy to ignite and sustain combustion.
[0016] A method for detecting the relative spatial structure of a side opening and a potential ignition source using the above device, comprising the following steps:
[0017] S1, preparing an electronic product to be tested, and placing the camera module and the visible laser ranging module outside the side opening of the electronic product;
[0018] S2, setting the position of the visible laser ranging module such that the distance between the laser emission port and the outer edge g of the lower surface f of the side opening of the electronic product is d, d=3 mm;
[0019] S3, adjusting the direction of the visual laser ranging module so that the visual laser ranging module emits visual laser beams from outside of the side opening of the electronic product to inside of the electronic product, the direction of the visual laser beams being away from the center of the earth, and the included angle between the direction of the visual laser beams and the vertical line away from the center of the earth being α, wherein α is not greater than 5°;
[0020] S4, measuring the distance L from the starting point to the ending point of the visual laser beams, the ending point being the intersection point of the visual laser beams and the first encountered obstacle after the visual laser beams are emitted;
[0021] S5, adjusting the imaging direction of the camera module to obtain the path image of the visual laser beams from the starting point to the ending point;
[0022] S6, obtaining the spatial position relationship between the ending point and the potential ignition source inside the electronic product according to the path image, and judging the suitability of the relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship; wherein if the ending point is located in the boundary of the potential ignition source region or within the range and L×sinα≤15mm, it is judged that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is judged that the relative spatial structure of the side opening and the potential ignition source is qualified.
[0023] The potential ignition source is a circuit, module, component or device inside the electronic product which has enough power energy to ignite and sustain combustion.
[0024] Optionally, the electronic product to be tested is a common commercial and civil electronic product such as uninterruptible power supply, liquid crystal display, flat panel television, personal computer, switch or printer.
[0025] In step S3, the visual laser ranging module emits a plurality of visual laser beams simultaneously.
[0026] The visual laser ranging module emits the visual laser beams simultaneously within the angle range of 0° to 5°, and when the ending point of the path of any one of the visual laser beams is located in the boundary of the potential ignition source region or within the range and L×sinα≤15mm, it is judged that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is judged that the relative spatial structure of the side opening and the potential ignition source is qualified.
[0027] In steps S5 and S6, the suitability of the relative spatial structure of the side opening and the potential ignition source is automatically completed by the main control module.
[0028] The second aspect of the application provides a device for detecting the relative spatial structure of a side opening and a potential ignition source, comprising: a master control module, a magnetic angle instrument module, a visual laser ranging module, and a camera module, wherein the master control module is connected to the magnetic angle instrument module, the visual laser ranging module, and the camera module respectively;
[0029] The master control module is configured to control the magnetic angle instrument module to adjust the relative positions of the visual laser ranging module and the camera module with respect to the electronic product to be detected, so that the camera module and the visual laser ranging module are located outside the side opening of the electronic product, and the distance between the laser emission port of the visual laser ranging module and the outer edge g of the lower surface f of the side opening of the electronic product is d, d = 3 mm.
[0030] The visual laser ranging module emits visual laser rays from the outside of the side opening of the electronic product to the inside of the electronic product, and the angle between the direction of the visual laser rays and the vertical line away from the center of the earth is α, wherein α is not greater than 5°.
[0031] The visual laser ranging module is further configured to measure the distance L from the starting point to the ending point of the visual laser rays, and the ending point is the intersection point of the visual laser rays after being emitted and the first obstacle encountered.
[0032] The camera module is configured to obtain the path image of the visual laser rays from the starting point to the ending point.
[0033] The master control module is further configured to obtain the spatial position relationship between the ending point and the potential ignition source inside the electronic product according to the path image obtained by the camera module, and determine the suitability of the relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship, wherein if the ending point is located within the boundary of the potential ignition source region or the inner range and L x sin α ≤ 15 mm, it is determined that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is determined that the relative spatial structure of the side opening and the potential ignition source is qualified.
[0034] The potential ignition source is a circuit, module, component, or device inside the electronic product that has sufficient power energy to ignite and sustain combustion.
[0035] The electronic product to be detected can be an uninterruptible power supply, a liquid crystal display, a flat panel television, a personal computer, a switch, a printer, or other common commercial and consumer electronic products.
[0036] The visual laser ranging module emits multiple visual laser rays simultaneously.
[0037] The visual laser ranging module emits the visual laser rays at an angle range of 0° to 5°, and when the end point of the path of any one of the visual laser rays is located on or within the potential ignition source area boundary and L*sinα≤15mm, it is determined that the side opening and the potential ignition source relative spatial structure is unqualified, otherwise, it is determined that the side opening and the potential ignition source relative spatial structure is qualified.
[0038] The main control module automatically completes the judgment of the suitability of the side opening and the potential ignition source relative spatial structure according to the spatial position relationship.
[0039] The device for detecting the side opening and the potential ignition source relative spatial structure is provided with a computer readable storage medium, and the computer readable storage medium stores instruction codes, and when the instruction codes are executed, the detection method of the electronic product in any one of S1 to S6 in the above content is executed.
[0040] Compared with the prior art, the method and device for detecting the side opening and the potential ignition source relative spatial structure have the following beneficial effects:
[0041] The laser emission port of the visual laser ranging module and the outer edge of the lower surface of the electronic product side opening are set as the distance specified in the electronic product safety standard, and the positions and orientations of the visual laser ranging module and the camera module are adjusted by the magnetic angle instrument module, so that the emission angle of the visual laser rays emitted by the visual laser ranging module meets the angle specified in the electronic product safety standard, the path of the flying sparks when the potential ignition source in the electronic product burns is simulated in reverse through the visual laser ray emission path, and finally whether the potential ignition source and the relative spatial structure of the electronic product side opening meet the standard is automatically judged according to the image information of the visual laser ray emission path and the visual laser ray emission path distance. The method and device can intelligently, conveniently and accurately detect electronic products of different structures. BRIEF DESCRIPTION OF DRAWINGS
[0042] Figure 1 The electronic product side surface is shown in the schematic diagram of the related standard,
[0043] Figure 2 The path and range of the flying sparks when the potential ignition source burns are shown in the schematic diagram of the related standard,
[0044] (Note: the origin is the spark of the potential ignition source, and the shadow area is the path and range of the flying sparks);
[0045] Figure 3 The schematic diagram of the electronic product side opening is shown,
[0046] Figure 4This illustrates a typical application scenario of a method for detecting the spatial structure of a side opening relative to a potential ignition source;
[0047] Figure 5 A schematic block diagram of a device for detecting the spatial structure relative to a side opening and a potential ignition source is shown.
[0048] The numbers in the diagram represent:
[0049] 1. Partition plate, thickness d, d=3mm;
[0050] 2. Visual laser ranging module, which emits a visual laser and measures distance;
[0051] 3. Camera module, to obtain a path image of the visible laser ray from its starting point to its ending point;
[0052] 4. Magnetic angle meter (equipped with an angle adjustment gimbal), adjust α;
[0053] 5. Main control module: acquires measurement data and images from each module, and analyzes and judges them. Detailed Implementation
[0054] For ease of understanding, the method and apparatus for detecting the spatial structure of a side opening relative to a potential ignition source, provided by embodiments of the present invention, will be described in detail below with reference to the accompanying drawings. (However, this is not a limitation of the present invention).
[0055] The concepts and principles involved in the embodiments of the present invention will be introduced.
[0056] Side openings in electronic products: such as Figure 1 As shown, when an electronic product is placed normally, the IEC 62368-1 standard specifies that if the angle between a surface of an electronic product and a vertical line is no greater than 5°, that surface is called a side surface; if the angle between that surface and the vertical line is greater than 5° and it faces upwards, that surface is called a top surface; and if the angle between that surface and the vertical line is greater than 5° and it faces downwards, that surface is called a bottom surface. Openings located on the side of an electronic product are called side openings. Note that... Figure 1 The examples of opening methods for electronic products shown are merely illustrative; this invention is applicable to electronic products with various types of openings.
[0057] Potential ignition source: A circuit, module, component, or device within an electronic product that possesses sufficient power energy to ignite and sustain combustion. To maintain the intended function of an electronic product, the circuit, module, component, or device possesses a certain amount of power energy. In the event of an anomaly or malfunction, this power energy is converted into heat energy, and potential ignition sources are easily ignited by this heat.
[0058] The electronic product regulatory research and development design usually considers opening a side opening to facilitate the heat dissipation performance of the internal heat of the product. The certification standard of the electronic product considers that the potential ignition source is easy to become a fire source, and the sparks fly out when the fire source burns. The angle between the sparks and the vertical line is not more than 5°, and the sparks fall in any direction downward. When the horizontal distance between the outwardly ejected sparks and the potential ignition source is 15 mm, the horizontal impulse of the sparks is exhausted, and the sparks fall vertically. Figure 2 , Figure 2 The path and range of the sparks ejected and fallen during the burning of the potential ignition source. During the ejection and falling of the sparks, the product shell inside may be contacted, or the product shell may be ejected out of the electronic product through the side opening of the electronic product.
[0059] When the horizontal distance between the outwardly ejected sparks and the potential ignition source is greater than 15 mm, the sparks are considered to fall vertically. If the sparks are still inside the electronic product at this time or the horizontal distance between the landing position of the sparks and the side opening of the electronic product is less than d, d = 3 mm, the sparks are considered not to cause a fire accident around the outside of the electronic product shell, and the fireproof structure is considered reasonable. Otherwise, it is considered that the volume of the sparks is large, and the sparks carry enough energy to ignite the combustible material outside the electronic product shell, causing a fire accident, and the fireproof structure needs to be replaced.
[0060] For example, refer to Figure 3 , Figure 3 For the sparks ejected out of the product shell through the side opening, the certification standard of the electronic product provides that when the sparks fall to the lower surface f of the side opening, the distance between the sparks and the outer edge g of the lower surface f of the side opening is less than d, d = 3 mm, the sparks are considered not to cause a fire accident around the outside of the electronic product shell, and the fireproof structure is considered reasonable. Otherwise, it is considered that the volume of the sparks is large, and the sparks carry enough energy to ignite the combustible material outside the electronic product shell, causing a fire accident, and the fireproof structure needs to be replaced.
[0061] Therefore, an embodiment of the present application provides a method for detecting the relative spatial structure of the side opening and the potential ignition source, please refer to Figure 4 , the method comprises the following steps:
[0062] S1, prepare the electronic product to be tested, and place the camera module and the visible laser ranging module outside the side opening of the electronic product;
[0063] S2, set the position of the visible laser ranging module, so that the distance between the laser emission port and the outer edge g of the lower surface f of the side opening of the electronic product is d, d = 3 mm;
[0064] S3, adjusting the direction of the visual laser ranging module so that the visual laser ranging module emits visual laser rays from outside of the side opening of the electronic product to inside of the electronic product, the direction of the visual laser rays being away from the center of the earth, and the included angle between the direction of the visual laser rays and the vertical line away from the center of the earth being a, wherein a is not greater than 5°;
[0065] S4, measuring the distance L from the starting point to the ending point of the visual laser rays, the ending point being the intersection point of the visual laser rays and the first encountered obstacle after the visual laser rays are emitted;
[0066] S5, adjusting the imaging direction of the camera module to obtain the path image of the visual laser rays from the starting point to the ending point;
[0067] S6, obtaining the spatial position relationship between the ending point and the potential ignition source inside the electronic product according to the path image, and judging the suitability of the relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship; wherein if the ending point is located in the boundary of the potential ignition source region or within the range and L x sin a is less than or equal to 15 mm, it is judged that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is judged that the relative spatial structure of the side opening and the potential ignition source is qualified;
[0068] The potential ignition source is a circuit or module or component or device inside the electronic product which has enough power energy to ignite and sustain combustion.
[0069] In some embodiments, the electronic product to be tested can be common commercial and civil electronic products such as uninterruptible power supply, liquid crystal display, flat panel television, personal computer, switch and printer.
[0070] In some embodiments, in the above steps S3 and S4, the visual laser ranging module simultaneously emits a plurality of visual laser rays, the plurality of visual laser rays can form different angles with the vertical line, preferably, the visual laser ranging module simultaneously emits three rays at angles of 0°, 2.5° and 5° with the vertical line to obtain three path images of the visual laser rays. Then, judging the suitability of the relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship is specifically: when the ending point of the path of any one of the visual laser rays is located in the boundary of the potential ignition source region or within the range and L x sin a is less than or equal to 15 mm, it is judged that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is judged that the relative spatial structure of the side opening and the potential ignition source is qualified;
[0071] The method for detecting the relative spatial structure of the side opening and the potential ignition source provided by the embodiment of the present application can accurately and conveniently measure and judge the suitability of the relative spatial structure of the side opening of the electronic product and the potential ignition source by reversely simulating the path of the flying and falling of the sparks through the visual laser ray and obtaining the image of the path through the camera module. Meanwhile, the method adopted by the embodiment of the present application has excellent feasibility and reproducibility because the implementation steps of the method do not involve the specific material properties, the shape contour, the internal structure and the opening style of the electronic product to be measured.
[0072] In particular, in some embodiments, the suitability of the relative spatial structure of the side opening and the potential ignition source is automatically judged by the image processing and recognition module according to the path image obtained by the camera module in steps S5 and S6, so that the method for detecting the relative spatial structure of the side opening and the potential ignition source has intelligence.
[0073] Please refer to Figure 5 The embodiment of the present application also provides a device for detecting the relative spatial structure of the side opening and the potential ignition source, which comprises a master control module, a magnetic angle instrument module, a visual laser ranging module and a camera module, wherein the master control module is connected with the magnetic angle instrument module, the visual laser ranging module and the camera module respectively, and the data or signaling can be exchanged between the modules when needed.
[0074] The master control module is used for controlling the magnetic angle instrument module to adjust the relative positions of the visual laser ranging module and the camera module with respect to the electronic product to be measured, so that the camera module and the visual laser ranging module are located outside the side opening of the electronic product, and the distance between the laser emission port of the visual laser ranging module and the outer edge g of the lower surface f of the side opening of the electronic product is d, d=3mm.
[0075] According to the relevant standards, when the flying sparks fall to the ground from the side opening of the electronic product, if the horizontal distance between the landing site and the outer edge g of the lower surface f of the side opening of the electronic product is less than d, d=3mm, the sparks are considered to be unable to cause fire accidents around the outside of the shell of the electronic product, and the fireproof structure is considered to be reasonable, otherwise, the sparks are considered to be large in volume and to carry enough energy to ignite the combustible material outside the shell of the electronic product, causing a fire accident, and the fireproof structure needs to be replaced.
[0076] The visual laser ranging module is used for emitting visual laser rays from the outside of the side opening of the electronic product to the inside of the electronic product, wherein the included angle between the visual laser rays and the vertical line is α, and α is not greater than 5°.
[0077] It is noted that in some embodiments, the alpha can be any angle from 0° to 5°, according to different detection needs.
[0078] The visual laser ranging module is further configured to measure a distance L from a starting point to an ending point of the visual laser ray, the ending point being an intersection point of the visual laser ray with a first encountered obstacle after the visual laser ray is emitted.
[0079] The camera module is configured to obtain a path image of the visual laser ray from the starting point to the ending point.
[0080] The main control module is further configured to obtain a spatial position relationship between the ending point and a potential ignition source inside the electronic product according to the path image obtained by the camera module, and determine suitability of a relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship, wherein if the ending point is located within a boundary of the potential ignition source or a range within the boundary and L*sin(alpha) is less than or equal to 15mm, it is determined that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is determined that the relative spatial structure of the side opening and the potential ignition source is qualified.
[0081] The potential ignition source is a circuit, a module, a component or a device inside the electronic product that has sufficient power energy to ignite and sustain combustion.
[0082] In some embodiments, the electronic product to be detected can be a common commercial and civil electronic product such as an uninterruptible power supply, a liquid crystal display, a flat panel television, a personal computer, a switch or a printer.
[0083] The device for detecting the relative spatial structure of the side opening and the potential ignition source provided by the embodiments of the present application can accurately and conveniently measure and determine suitability of the relative spatial structure of the side opening and the potential ignition source of the electronic product by simulating a path of a spark ejection and a fly-off of a visual laser ray in reverse and obtaining an image of the path by the camera module. Meanwhile, the device has excellent feasibility and reproducibility because the implementation steps thereof do not involve specific material properties, an outline, an internal structure and an opening style of the electronic product to be detected.
[0084] Preferably, in some embodiments, the determination of whether the relative spatial structure of the side opening and the potential ignition source is qualified is automatically completed by an image processing and recognition module in the main control device, so as to improve intelligence of the device for detecting the relative spatial structure of the side opening and the potential ignition source.
[0085] It should be noted that through the description of the above embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above-mentioned division of functional modules is exemplified, and in actual application, the above-mentioned functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the device for detecting the spatial structure of the side opening and the potential ignition source can refer to the corresponding process in the foregoing method embodiment, and will not be repeated here.
[0086] Embodiments of the present application also provide a computer readable storage medium having instruction codes stored thereon, the instruction codes being executed to perform the detection method of the electronic product according to any one of claims 1-4.
[0087] For example, the instruction codes can be transmitted from one computer readable storage medium to another computer readable storage medium, for example, the instruction codes can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, magnetic disk, magnetic tape), optical media (such as digital video disc (DVD)), or semiconductor media (such as solid state drive (SSD)) and the like.
[0088] The device for detecting the spatial structure of the side opening and the potential ignition source has one or more processors, the processor is provided with a computer readable storage medium having instruction codes stored thereon, the instruction codes being configured to run computer program instructions, and when the instruction codes are executed, the detection method of the electronic product according to any one of S1 to S6 in the above description is performed.
[0089] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes, combinations or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A device for detecting the relative spatial configuration of a side opening and a potential ignition source, characterized in that, The device comprises a master control module, a magnetic angle instrument module, a visual laser ranging module and a camera module, wherein the master control module is connected with the magnetic angle instrument module, the visual laser ranging module and the camera module respectively; The master control module is used for controlling the magnetic angle instrument module to adjust the relative positions of the visual laser ranging module and the camera module with the electronic product to be measured, so that the camera module and the visual laser ranging module are located outside the side opening of the electronic product, and the distance between the laser emission port of the visual laser ranging module and the outer edge g of the lower surface f of the side opening of the electronic product is d, d=3mm; The visual laser ranging module emits visual laser rays from the outside of the side opening of the electronic product to be measured to the inside of the electronic product to be measured, and the angle between the direction of the visual laser rays and the vertical line away from the center of the earth is α, wherein α is not greater than 5°; the visual laser ranging module simultaneously emits a plurality of visual laser rays within the angle range of 0° to 5° of α; The camera module is used for obtaining the path image of the visual laser rays from the starting point to the ending point; The potential ignition source is a device with sufficient power energy in the electronic product to be measured, which can ignite and continuously burn; The visual laser ranging module is used for measuring the distance L from the starting point to the ending point of the visual laser rays, and the ending point is the intersection point between the visual laser rays and the first encountered obstacle after being emitted; The master control module is used for obtaining the spatial position relationship between the ending point and the potential ignition source inside the electronic product to be measured according to the path image obtained by the camera module, and judging the suitability of the relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship; wherein if the ending point is located in the boundary or the inner range of the potential ignition source area and L×sinα≤15mm, it is judged that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is judged that the relative spatial structure of the side opening and the potential ignition source is qualified.
2. The detection method of the device according to claim 1, characterized in that, The method comprises the following steps: S1, preparing an electronic product to be measured, and placing a camera module and a visual laser ranging module outside a side opening of the electronic product to be measured; S2, setting the position of the visual laser ranging module, so that the distance between the laser emission port and the outer edge g of the lower surface f of the side opening of the electronic product to be measured is d, d=3mm; S3, adjusting the direction of the visual laser ranging module, so that the visual laser ranging module emits visual laser rays from the outside of the side opening of the electronic product to be measured to the inside of the electronic product to be measured, and the angle between the direction of the visual laser rays and the vertical line away from the center of the earth is α, wherein α is not greater than 5°; S4, measuring the distance L from the starting point to the ending point of the visual laser rays, and the ending point is the intersection point between the visual laser rays and the first encountered obstacle after being emitted; S5, adjusting the camera direction of the camera module to obtain the path image of the visual laser rays from the starting point to the ending point; S6, obtaining the spatial position relationship between the terminal point and the potential ignition source inside the electronic product to be tested according to the path image, and judging the suitability of the relative spatial structure of the side opening and the potential ignition source according to the spatial position relationship; wherein if the terminal point is located in the boundary of the potential ignition source region or within the range and L×sinα≤15mm, it is judged that the relative spatial structure of the side opening and the potential ignition source is unqualified, otherwise, it is judged that the relative spatial structure of the side opening and the potential ignition source is qualified.
3. The method of claim 2, wherein, In steps S5 and S6, the suitability of the relative spatial structure of the side opening and the potential ignition source is automatically completed by the main control module.
4. The method of claim 3, wherein, The device for detecting the relative spatial structure of the side opening and the potential ignition source is provided with a computer readable storage medium, and the computer readable storage medium stores instruction codes, and when the instruction codes are executed, the detection method of the electronic product to be tested in any one of claims 2-3 is executed.
Citation Information
Patent Citations
Fire source detection and alarm device
CN107437319A
Combustion chamber assembly, method of organizing combustion, computer readable medium, internal combustion engine
CN114165329A