Detection apparatus

Abstract

A detection apparatus, the detection apparatus comprising a detection assembly, a camera assembly and a shielding assembly. The detection assembly is used for transmitting and receiving set electromagnetic waves having a set wavelength, the set wavelength being greater than the wavelength of light rays collected by the camera assembly. The camera assembly is installed on the detection assembly, the shielding assembly covers a light collection member of the camera assembly, and the shielding assembly is used for allowing light rays collected by the light collection member to pass through and shield the set electromagnetic waves.

Description

A detection device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 16, 2023, with application number 202311533996.8 and application name “A Detection Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic device detection, and in particular to a detection device. Background Art

[0003] In a detection device such as a nonlinear node detector, in addition to setting up corresponding detection components such as a nonlinear node detection component, a camera component is also set up.

[0004] The detection component can identify electronic devices through methods such as harmonic detection, while the camera component plays an auxiliary role in detection, helping to display the appearance of electronic devices. However, the current detection equipment equipped with a camera component has a high false alarm rate, which is a problem that technicians in this field are currently seeking to solve. Summary of the Invention

[0005] Based on this, it is necessary to provide a detection device.

[0006] A detection device comprises a detection component, a camera component and a shielding component. The detection component is used to transmit and receive set electromagnetic waves with a set wavelength, and the set wavelength is greater than the wavelength of light collected by the camera component.

[0007] The camera assembly is installed on the detection assembly, and the shielding assembly covers the light-collecting component of the camera assembly. The shielding assembly is used to allow the light collected by the light-collecting component to pass through and shield the set electromagnetic waves.

[0008] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0010] FIG1 is a partial cross-sectional view of a detection device provided in the first embodiment of the present application.

[0011] FIG2 is a partial exploded view of the detection device provided in the first embodiment of the present application.

[0012] FIG3 is a schematic structural diagram of the second side of the reflective plate provided in an embodiment of the present application.

[0013] FIG4 is a partial cross-sectional view of a detection device provided in a second embodiment of the present application.

[0014] FIG5 is a partial exploded view of a detection device provided in the second embodiment of the present application.

[0015] FIG6 is a structural diagram of a detection device provided in an embodiment of the present application.

[0016] Wherein: 1. Detection assembly. 11. Reflector. 111. Metal window. 2. Camera assembly. 3. Shielding assembly. 31. First through-hole. 32. Shielding mesh. 4. Shielding cover. 41. Opening. 42. Shielding cavity. 5. Lighting assembly. 51. Metal sheet. 52. Second through-hole. 6. Housing. 7. Flaring member. 8. Rotating shaft. 9. Connecting rod. DETAILED DESCRIPTION

[0017] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] The above description includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it will be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, to the extent that the term "comprising" is used in the specification or claims, the term is intended to be encompassed in a manner similar to the term "including", as explained by the use of "including" as a transitional word in the claims. In addition, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".

[0020] In detection equipment (such as nonlinear node detection equipment or metal detection equipment), adding imaging functions (such as infrared imaging and visible light imaging) can not only reveal the appearance of hidden electronic products, but also help inspectors make quick and accurate judgments, improve security inspection efficiency, and quickly locate hidden targets. The imaging function can be implemented by a camera assembly with a camera.

[0021] However, in nonlinear node detection equipment, for example, electromagnetic waves emitted by the detection component reach the camera. Since the camera contains electronic components, these electromagnetic waves generate corresponding second and third harmonics. Once the detection component receives these harmonics, it may mistakenly believe that an electronic device is present, resulting in a false alarm from the nonlinear node detector. Similarly, metal detection equipment can trigger false alarms due to the presence of metal in the camera. Therefore, reducing the false alarm rate of the detection component in the detection equipment has become an urgent problem to be solved.

[0022] In response to the above technical problems, the present application provides a detection device, which aims to reduce the impact of the camera on the detection component by shielding the camera without affecting the imaging function of the camera.

[0023] Please refer to FIG1 , which is a partial cross-sectional view of a detection device provided in a first embodiment of the present application.

[0024] As shown in Figure 1, Figure 1 shows the local structure of the detection device. As can be seen in Figure 1, the detection device includes a detection component 1, a camera component 2 and a shielding component 3. The detection device uses the shielding component 3 to achieve light transmission and shielding of set electromagnetic waves for the camera component 2, thereby reducing or even eliminating the interference of the camera component 2 on the detection component 1 during normal operation while meeting the light requirements of the camera component 2 for normal operation.

[0025] Specifically, the detection component 1 is used to emit and receive set electromagnetic waves with a set wavelength, and the set wavelength is greater than the wavelength of the light collected by the camera component 2. The camera component 2 is installed on the detection component 1, and the shielding component 3 covers the light-collecting component of the camera component 2. The shielding component 3 is used to allow the light collected by the light-collecting component to pass through and shield the set electromagnetic waves.

[0026] If the detection assembly 1 is, for example, a nonlinear node detection assembly, the electromagnetic wave is assumed to include a fundamental wave, a second harmonic, and a third harmonic. The camera assembly 2 is, for example, a visible light camera or an infrared camera. The light-collecting component on the camera assembly 2 is the component in the camera assembly 2 that collects and captures light, and may be, for example, a lens of the camera assembly 2. In addition, the camera assembly 2 may also include other components for implementing imaging functions, which are not described in detail in this embodiment of the present application. Furthermore, the type of light-collecting component may also be consistent with the functional type of the camera assembly 2. For example, if the camera assembly 2 is a visible light camera assembly, the light-collecting component may be a visible light lens. The camera assembly 2 and the detection assembly 1 may be arranged to face the same direction (for example, if the detection device includes a housing, and the camera assembly 2 and the detection assembly 1 are both located within the housing, then the camera assembly 2 and the detection assembly 1 face the same side of the housing), so that the area captured by the camera assembly 2 corresponds to the detection area of ​​the detection assembly 1. It should be noted that there are various ways to mount the camera assembly 2 on the detection assembly 1, including but not limited to fastener connection, bonding, welding, etc., which are not limited in this embodiment of the present application.

[0027] Based on the light requirements of the lighting components in the camera assembly 2 and the position where the camera assembly 2 is installed on the detection assembly 1, it can be understood that a lighting channel can be opened in the detection equipment to meet the light requirements of the lighting components, and the existence of the lighting channel will increase the probability that the set electromagnetic waves emitted by the detection assembly 1 reach the camera assembly 2, thereby increasing the probability that the detection assembly 1 mistakenly identifies the camera assembly 2 as the target detection object, and further resulting in a higher false alarm rate of the detection equipment.

[0028] In order to overcome the above problems, the embodiment of the present application covers the shielding component 3 on the light collecting component. It should be noted that the shielding component 3 can be made of conductive or magnetic materials (such as metal materials), so that the transmission of the set electromagnetic waves can be blocked by utilizing the principle of electromagnetic shielding, thereby achieving the effect of weakening or even eliminating the set electromagnetic waves received or emitted by the camera component 2. The shielding component 3 can also be provided with a corresponding light-inlet structure (such as a hole) for the light collected by the light collecting component to pass through, and because the wavelengths of the set electromagnetic waves and the light collected by the camera component 2 are different, and the wavelength of the light collected by the camera component 2 is smaller than the wavelength of the set electromagnetic waves, the size of the light-inlet structure (such as a hole) on the shielding component 3 can be controlled so that the light-inlet structure only allows the collected light to pass through, thereby ensuring that the camera component 2 collects light normally, and the set electromagnetic waves with longer wavelengths cannot pass through the shielding component 3 and reach the camera component 2, that is, it is achieved to avoid the passage of the set electromagnetic waves without affecting the passage of light, thereby achieving the purpose of shielding.

[0029] Compared with the traditional solution without shielding between the camera component 2 and the detection component 1, the technical solution of the embodiment of the present application prevents the set electromagnetic waves of the detection component 1 from entering the camera component 2 by adding a shielding component 3, and the shielding component 3 can also ensure that light can enter the camera component 2, so that the detection equipment can ensure the normal use of the camera function of the camera component 2 while avoiding the situation where the detection component 1 is falsely alarmed by the camera component 2.

[0030] In an alternative embodiment, the detection device is a nonlinear node detection device, and the detection assembly 1 is a nonlinear node detection assembly. In this case, the detection accuracy of the nonlinear node detection device is improved. The camera assembly 2 is an infrared imaging assembly, which implements an infrared imaging function and includes a light collecting element and other components required for implementing the infrared imaging function.

[0031] It should be noted that this embodiment is an improvement to a detection device, such as a nonlinear node detection device. The improvement primarily relates to a shielding scheme between the camera assembly 2 and the detection assembly 1 (as described in the claims). Beyond this improvement, the present embodiment does not limit the working principles of the detection assembly 1 and the camera assembly 2, or their structural configurations. Improvements not related to this embodiment may be referred to the prior art and will not be elaborated upon here.

[0032] Continuing with FIG2 , in some embodiments, the detection assembly 1 includes an antenna plate (not shown) and a reflector 11. The antenna plate is located on a first side of the reflector 11, and the camera assembly 2 is located on a second side of the reflector 11. The first side of the reflector 11 faces in an opposite direction to the second side of the reflector 11. The shielding assembly 3 is mounted on the reflector 11.

[0033] In this embodiment, the antenna plate can be used to transmit and receive set electromagnetic waves with a set wavelength to achieve the detection function of the detection assembly 1. For example, if the detection device is a nonlinear node detection device, the antenna plate is used to transmit a fundamental signal and receive the second harmonic signal and third harmonic signal generated by the target detection object after receiving the fundamental signal, thereby achieving the nonlinear node detection function of the detection device. It is understandable that the fundamental signal, second harmonic signal, and third harmonic signal can correspond to the set electromagnetic wave. The reflector 11 can serve as the reflective surface of the antenna plate. The antenna on the antenna plate typically has two radiation lobes in both forward and reverse directions. The reflector 11 is used to reflect the reverse radiation lobe of the antenna plate so that it is superimposed with the forward radiation lobe. The forward direction of the antenna plate can be the direction of the side end of the antenna unit on it. In addition to the antenna plate and reflector 11, the detection assembly 1 also includes other components for achieving the detection function, such as a radio frequency board, a baseband board, etc., which are not limited in this embodiment of the present application.

[0034] The first side and the second side of the reflector 11 can be the left side and the right side respectively, or can also be the upper side and the lower side respectively, which is not limited in the embodiments of the present application. The antenna plate, the reflector 11 and the camera assembly 2 are arranged at intervals, which is equivalent to the antenna plate and the camera assembly 2 being separated by the reflector 11. That is, the antenna plate and the camera assembly 2 are distributed on two sides of the reflector 11 facing in opposite directions, such as the antenna plate is located on the upper side of the reflector 11, and the camera assembly 2 is located on the lower side of the reflector 11. With such an arrangement, the reflector 11 can reflect the set electromagnetic waves of the antenna plate. In addition, the reflector 11 can also block the penetration of the set electromagnetic waves. Therefore, the reflector 11 can also serve as a barrier between the antenna plate and the camera assembly 2, reducing the set electromagnetic waves from directly passing through and reaching the camera assembly 2.

[0035] In this embodiment, since the camera assembly 2 is located on the side of the reflector 11 facing away from the antenna plate, the light channel of its light-collecting member needs to be provided through the reflector 11. The shielding assembly 3 can be specifically installed on the reflector 11 at the point where the light channel passes through, so that the reflector 11 can provide a light channel for the light-collecting member while shielding the transmission of the set electromagnetic waves. In addition, in the embodiment of the present application, there are various ways to install the shielding assembly 3 and the reflector 11, including but not limited to connecting with fasteners, bonding, welding, etc., which are also not limited in this embodiment.

[0036] As shown in Figure 2, in some embodiments, the shielding assembly 3 includes a first through hole 31 and a shielding net 32, the first through hole 31 is provided on the reflecting plate 11, the first through hole 31 connects the first side of the reflecting plate 11 and the second side of the reflecting plate 11, and the shielding net 32 ​​is provided on the first side of the reflecting plate 11 and covers the first through hole 31.

[0037] In this embodiment, the first through hole 31 can be a straight hole and can be set through the reflector 11. The first through hole 31 can have a first opening and a second opening that are interconnected. The first opening and the second opening can be located on the first side and the second side of the reflector 11, respectively. The first through hole 31 functions as a light-collecting through hole for the camera assembly 2, allowing light to enter the second side of the reflector 11 from the first side of the reflector 11 for collection by the light-collecting element, thereby enabling the camera assembly 2 to capture images of areas outside the first side of the reflector 11 through the first through hole 31 on the second side of the reflector 11.

[0038] The shielding mesh 32 can be made of a metal material, or can be made of other materials and then plated with a metal layer. The shielding mesh 32 can be located at the first opening and configured to cover the first opening. The shielding mesh 32 can have mesh holes to allow light passing through the first through hole 31 to pass normally to the light collecting member, while blocking electromagnetic waves of wavelengths other than the wavelength of the light, such as set electromagnetic waves of a set wavelength, thereby preventing the set electromagnetic waves from flowing through the first through hole 31, thereby shielding the set electromagnetic waves without affecting the normal operation of the camera assembly 2.

[0039] Furthermore, the shielding net 32 ​​includes meshes, and the maximum span of the meshes is smaller than the set wavelength.

[0040] With this arrangement, when the set electromagnetic wave and light reach the first through-hole 31, because the maximum span of the mesh is smaller than the set wavelength of the set electromagnetic wave, the set electromagnetic wave of the detection component 1 is blocked by the shielding net 32 ​​and cannot pass through. However, the maximum span of the mesh can be larger than the wavelength of the light collected by the camera component 2, and the wavelength of the light can pass through normally because it is smaller than the maximum span of the mesh. In summary, the shielding net 32 ​​is equivalent to filtering the set electromagnetic wave of the set wavelength, thereby achieving a shielding effect on the set electromagnetic wave while ensuring the passage of light.

[0041] It should be noted that the cross-sectional shape of the mesh can be, but is not limited to, a circle, an ellipse, a prism, a triangle, etc., and the embodiments of the present application do not limit this. It should be noted that the maximum span of the mesh is: the maximum length of a line segment connecting two points on the periphery of the mesh cross-sectional shape and passing through the center of the cross-sectional shape. For example, when the cross-sectional shape of the mesh is a circle, all spans of the mesh cross-sectional shape are equal, and the maximum span is the length of the diameter of the circle. When the cross-sectional shape of the mesh is an ellipse, the spans of the mesh are not all equal, and the maximum span is the length of the major axis of the ellipse.

[0042] It should be noted that in this embodiment, while the maximum span of the mesh is smaller than the set wavelength, it should also be greater than or equal to the maximum wavelength of the light to ensure that the light can pass through normally. In actual applications, the maximum span of the mesh can be set to be much smaller than the wavelength of the set electromagnetic wave. For example, if the set wavelength of the electromagnetic wave is 120 mm, the maximum span of the mesh can be selected to be 1 / 100th or 1 / 1000th of 120 mm.

[0043] Exemplarily, the shielding mesh 32 is a copper wire mesh with a circular cross-section having a diameter ranging from 0.12 mm to 1.20 mm. The shielding mesh 32 is welded to the reflective plate 11. Furthermore, the distance between the shielding mesh 32 and the camera assembly 2 is less than a predetermined distance, which may be less than 1.0 mm. This allows light to pass through the shielding mesh 32 from the first side of the reflective plate 11 and reach the camera assembly 2, ensuring that the camera assembly 2 can properly image.

[0044] Please continue to refer to FIG. 1 and FIG. 2 . In some embodiments, the detection device further includes a shielding cover 4 . The shielding cover 4 is located on the second side of the reflective plate 11 , and the camera assembly 2 is disposed in the shielding cover 4 .

[0045] In this embodiment, the material of the shielding cover 4 can be the same metal material as the shielding net 32, which can play the role of shielding the set electromagnetic waves. Since the shielding net 32 ​​and the reflector 11 are equivalent to shielding the set electromagnetic waves between the camera assembly 2 and the detection assembly 1, it is found in actual applications that the set electromagnetic waves may also be transmitted between the camera assembly 2 and the detection assembly 1 through other leakage paths (for example, through the edge of the reflector 11). Therefore, the embodiment of the present application sets the camera assembly 2 in the shielding cover 4, and the shielding cover 4 wraps the camera assembly 2 to reduce the exposed area of ​​the camera assembly 2. The shielding cover 4 can shield the camera assembly 2 from leaking set electromagnetic waves in all directions on the second side of the reflector 11, thereby reducing the probability of the set electromagnetic waves being transmitted in both directions between the camera assembly 2 and the detection assembly 1 through other leakage paths, thereby improving the shielding effect on the camera assembly 2.

[0046] Such an arrangement enables the shielding cover 4, the shielding net 32 ​​and the reflective plate 11 to jointly shield electromagnetic waves of a set wavelength, which not only enriches the shielding methods but also helps to improve the shielding effect.

[0047] Please refer to FIG3 , which is a schematic structural diagram of the second side of the reflective plate provided in an embodiment of the present application.

[0048] As shown in Figure 3, in some embodiments, the reflective plate 11 is provided with a metal window 111, which is located on the second side of the reflective plate 11, and the metal window 111 surrounds the outer periphery of the first through hole 31. The metal window 111 is in contact with the shielding cover 4, and the reflective plate 11 forms a shielding cavity 42 with the shielding cover 4 through the metal window 111.

[0049] In this embodiment, as shown in FIG2 , the shielding cover 4 may have an open end 41. The open end 41 may abut against the metal window 111 to form a closed shielding cavity 42 on the second side of the reflector 11. The camera assembly 2 is mounted within the shielding cavity 42. In this manner, the mesh of the shielding mesh 32 is the only structure within the shielding cavity 42 that allows the camera assembly 2 to communicate with the outside world, thereby improving the shielding effect against target electromagnetic waves.

[0050] The metal window 111 can be implemented as a boss-type structure or a groove-type structure, and there are various ways to set the metal window 111 on the reflector 11. For example, the metal window 111 can be installed on the reflector 11 as another component independent of the reflector 11 (such as a boss-type structure), or the metal window 111 can be integrally formed on the reflector 11 as a structure integral with the reflector 11 (such as a groove-type structure). This is not limited in the embodiments of the present application. In addition, the metal window 111 can also be used to provide positioning for the installation of the shielding cover 4 to reduce the difficulty of installing the shielding cover 4.

[0051] The portion where the metal window 111 contacts the shielding cover 4 can be made of the same metal material as the shielding cover 4. Therefore, when the shielding cover 4 abuts the metal window 111, the shielding cover 4 and the metal window 111 form a complete shielding cavity 42, fully enclosing the camera assembly 2. This reduces the passage of electromagnetic waves without affecting the installation effect, thereby achieving the purpose of shielding. Optionally, the metal window 111 includes a groove and a metal layer, wherein the groove is provided on the surface of the second side of the reflector 11, and the metal layer is provided on the groove surface of the groove, with at least a portion of the shielding cover 4 being embedded in the groove and abutting the metal layer.

[0052] In this embodiment, the cross-sectional shape of the groove may be rectangular, semicircular, triangular, etc., which is not limited in this embodiment. The groove of the metal window 111 may be a groove structure additionally opened on the reflector 11, or the groove of the metal window 111 may be integrally formed with the reflector 11, and a metal layer may be provided on the groove surface of the groove. When installing the shielding cover 4, the shielding cover 4 may be pre-positioned for installation by at least partially engaging the shielding cover 4 in the groove. When the shielding cover 4 is installed in the groove, the metal layer may abut against part or all of the surface of the open end 41 of the shielding cover 4, and when the metal layer abuts against part of the surface of the shielding cover 4, the remaining surface of the open end 41 of the shielding cover 4 may abut against the end face of the reflector 11 on the second side.

[0053] It should be noted that this embodiment only provides a way to achieve the installation of the shielding cover 4 and the reflector 11, that is, the shielding cover 4 is positioned through the groove on the second side of the reflector 11, and the shielding cover 4 contacts the metal layer on the groove surface of the groove to achieve shielding, but it does not limit the shielding cover 4 to be installed with the reflector 11 only in this way. For other installation methods, such as the shielding cover 4 and the second side of the reflector 11 using other connecting parts to form a sealed shielding cavity 42, etc., they should also fall within the scope of protection of this application.

[0054] In this way, compared with the direct contact between the end faces of the shielding cover 4 and the reflective plate 11, the set electromagnetic waves on either side of the inside or outside of the shielding cover 4 need to pass through a stepped transmission path to reach the other side. That is, by increasing the tortuosity complexity of the transmission path of the set electromagnetic waves from the contact point between the shielding cover 4 and the reflective plate 11, the transmission probability of the set electromagnetic waves is reduced, thereby further reducing the interference of the camera group 2 on the detection component 1.

[0055] Please refer to Figures 4 and 5. Figure 4 is a partial cross-sectional view of the detection device provided in the second embodiment of the present application, and Figure 5 is a partial exploded view of the detection device provided in the second embodiment of the present application.

[0056] As shown in Figures 4 and 5, as an option, the detection device further includes a lighting component 5 on the basis of the detection component 1, the camera component 2, the shielding component 3 and the shielding cover 4. The lighting component 5 is located between the first through hole 31 and the lighting component of the camera component 2. The lighting component 5 is used to allow the light passing through the first through hole 31 to reach the lighting component, and the thickness of the lighting component 5 is less than the thickness of the reflective plate 11.

[0057] In this embodiment, the lighting assembly 5 may also be provided with a corresponding light-entry structure (e.g., a hole) for the light passing through the first through hole 31. The size of the light-entry structure (e.g., a hole) on the lighting assembly 5 may also be controlled so that the light-entry structure only allows the light collected by the lighting component to pass through, while preventing the passage of set electromagnetic waves with longer wavelengths, thereby further reducing the transmission of the set electromagnetic waves between the detection assembly 1 and the camera assembly 2. Because the shielding net 32 ​​is provided on the first side of the reflective plate 11 and covers the first through hole 31, and the lighting assembly 5 is located between the first through hole 31 and the lighting component, the lighting assembly 5 is equivalent to being located downstream of the shielding net 32 ​​in the lighting channel of the camera assembly 2 in the direction in which the light from the first through hole 31 enters (from the first opening of the first through hole 31 to the second opening). That is to say, after the shielding net 32 ​​filters the electromagnetic waves in the light, the lighting component 5 serves as another barrier behind the shielding net 32. On the one hand, it allows the light collected by the lighting component to pass through, and on the other hand, it further shields the set electromagnetic waves of the set wavelength. Therefore, the lighting component 5 can further improve the shielding effect.

[0058] In addition, the thickness of the lighting component 5 needs to be less than the thickness of the reflector 11, and the thickness of the reflector 11 is the thickness of a conventional circuit board. Therefore, the thickness of the lighting component 5 needs to be set to be thinner than the thickness of a conventional circuit board. It should be noted that since the thickness of the reflector 11 and the lighting component 5 will affect the passage of light, and the lighting component 5 is located downstream of the reflector 11, the light passes through the reflector 11 and the lighting component 5 in turn to reach the lighting component. This embodiment can allow more light to enter the lighting component by flexibly adjusting the light intake structure of the reflector 11 and the lighting component 5. Since the reflector 11 also needs to cooperate with the antenna plate for reflection, there is little room for modification of parameters such as the thickness of the reflector 11, which may affect the transmittance of light to a certain extent. Since the lighting component 5 is newly added in this embodiment, the transmittance of light can be further improved by setting the relevant parameters of the light-transmitting structure of the lighting component 5. For example, the thickness of the lighting component 5 affects the light passing through it. Specifically, the thicker the lighting component 5 is, the less light passes through it, and the thinner the lighting component 5 is, the more light passes through it. Therefore, the lighting component 5 can be set to have a thinner thickness.

[0059] The technical solution of this embodiment can minimize the loss of light caused by the lighting component 5 by setting the thickness of the lighting component 5 to be smaller than the thickness of the reflector 11, so that the lighting component 5 can further shield the set electromagnetic waves while reducing the impact on the imaging function of the camera component 2.

[0060] Please continue to refer to Figure 5. In some embodiments, the lighting component 5 includes a metal sheet 51 and a second through hole 52 provided on the metal sheet 51. The cross-sectional area of ​​the second through hole 52 is smaller than the cross-sectional area of ​​the first through hole 31, and the second through hole 52 is respectively opposite to the first through hole 31 and the lighting component.

[0061] In this embodiment, the second through hole 52 may be a straight hole and may be provided through the metal sheet 51. The metal sheet 51 may have a first side end and a second side end relative to each other, wherein the first side end may be relative to the first through hole 31, and the second side end may be relative to the light collecting member. The second through hole 52 may also have a third opening and a fourth opening that are interconnected, and the third opening and the fourth opening may be located on the first side and the second side of the metal sheet 51, respectively. The second through hole 52 also serves as a light collecting through hole, and the third opening of the second through hole 52 is opposite to the first through hole 31, and the fourth opening may be opposite to the light collecting member, which is equivalent to the shielding net 32, the first through hole 31, the second through hole 52, and the light collecting member being located in sequence on the path for light to enter, so that the light enters the second side of the reflective plate 11 from the first side of the reflective plate 11, and then enters the second side of the metal sheet 51 from the first side of the metal sheet 51, and is then collected by the light collecting member.

[0062] In this embodiment, the cross-sectional area of ​​the second through hole 52 is configured to be smaller than the cross-sectional area of ​​the first through hole 31. The smaller the cross-sectional area of ​​the second through hole 52, the lower the probability that the set electromagnetic wave will pass through the second through hole 52 and reach the camera assembly 2. This configuration effectively reduces the probability of the set electromagnetic wave being transmitted through the second through hole 52, further helping to reduce the impact of the camera assembly 2 on the detection assembly 1. Furthermore, it is understood that the depth of the second through hole 52 can be consistent with the thickness of the reflector 11, that is, less than the depth of the first through hole 31, thereby achieving the purpose of reducing light loss.

[0063] It should be noted that since the circuit board structure of the reflector 11 has a certain thickness, if the first through-hole 31 provided in the reflector 11 is a smaller hole of similar size to the second through-hole 52, while shielding the camera assembly 2 can be achieved, some light from the camera assembly 2 will be blocked by the reflector 11, thereby affecting the imaging performance of the camera assembly 2. Therefore, the first through-hole 31 can be set as a larger hole to allow as much light as possible to pass through. Furthermore, a thinner metal sheet 51 is added, while the second through-hole 52 provided in the metal sheet 51 is a smaller hole to improve the shielding effect against the target electromagnetic waves. Since the depth of the second through-hole 52 is less than that of the first through-hole 31, the metal sheet 51 is thinner than the reflector 11. Therefore, despite its small size, the second through-hole 52 has little impact on the light collected by the camera assembly 2. Therefore, through the coordination of the shielding mesh 32, the first through-hole 31, and the metal sheet 51, this embodiment can both improve the shielding effect against the target electromagnetic waves and ensure light transmittance.

[0064] For example, the metal sheet 51 can be a 0.2 mm thick nickel silver sheet.

[0065] Please refer to FIG6 , which is an overall structural diagram of the detection device provided in an embodiment of the present application.

[0066] As shown in FIG6 , in some embodiments, the detection device further includes a housing 6 and an expansion member 7 , wherein the detection assembly 1 , the camera assembly 2 and the shielding assembly 3 are located in the housing 6 . The expansion member 7 is provided on the housing 6 and faces the shielding assembly 3 .

[0067] In this embodiment, the expansion member 7 is funnel-shaped with two open ends. The end with a smaller opening diameter faces the shielding assembly 3, while the end with a larger opening diameter extends to the surface of the housing 6. The expansion member 7 can focus light to improve the imaging effect of the camera assembly 2. The expansion member 7 focuses the light required for imaging by the camera assembly 2 and transmits it into the shielding assembly 3. The light then passes through the shielding mesh 32, the first through hole 31, the second through hole 52, and the light collecting member before being collected by the light collecting member.

[0068] Optionally, the detection device also includes a probe part, a rotating shaft 8 and a connecting rod 9 (it should be noted that the connecting rod shown in Figure 6 is only a partial connecting rod). The outer shell 6 is the shell of the probe part, and the probe part is rotatably connected to the connecting rod 9 through the rotating shaft 8 to facilitate the user to hold the connecting rod 9, and to adjust the detection direction of the detection component 1 and the shooting direction of the camera component 2 at the same time by adjusting the angle of the outer shell 6.

[0069] In this embodiment, the detection area of ​​the detection component 1 is changed by adjusting the angle of the detection component 1. On the basis that the camera component 2 and the detection component 1 are in the same orientation direction, the camera component 2 and the detection component 1 are adjusted synchronously to achieve the consistency between the camera area of ​​the camera component 2 and the detection area of ​​the detection component 1.

[0070] Optionally, the camera component 2 is an infrared imaging component, and the detection component 1 is a nonlinear node detection component. In this case, the detection device is an infrared imaging nonlinear node detector, which can identify the electronic device through harmonic detection while displaying the appearance of the electronic device through infrared imaging.

[0071] In an optional embodiment, the detection device is a nonlinear node detector, and the electromagnetic wave is assumed to include a fundamental wave, a second harmonic, and a third harmonic.

[0072] Compared with the solution of the traditional nonlinear node detector, the technical solution of the embodiment of the present application can prevent the set electromagnetic wave, i.e., the fundamental wave, from entering the camera component 2 by adding the shielding component 3, and can also prevent the second harmonic and third harmonic generated by the camera component 2 from reaching the detection component 1, thereby ensuring normal lighting of the camera component 2 while reducing the false alarm rate of the nonlinear node detector and improving the detection accuracy of the nonlinear node detector.

[0073] It should be noted that many of the components mentioned in this application are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0074] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A detection device, comprising a detection component, a camera component and a shielding component, wherein the detection component is used to transmit and receive a set electromagnetic wave with a set wavelength, and the set wavelength is greater than the wavelength of the light collected by the camera component; The camera assembly is installed on the detection assembly, the shielding assembly covers the light collecting component of the camera assembly, and the shielding assembly is used for allowing the light collected by the light collecting component to pass through and shielding the set electromagnetic wave.

2. The detection device according to claim 1, characterized in that The detection assembly includes an antenna plate and a reflective plate, the antenna plate is located on a first side of the reflective plate, the camera assembly is located on a second side of the reflective plate, and the orientation of the first side of the reflective plate is opposite to that of the second side of the reflective plate; the shielding assembly is installed on the reflective plate.

3. The detection device according to claim 2, characterized in that: The shielding assembly includes a first through hole and a shielding net, wherein the first through hole is arranged on the reflecting plate, the first through hole connects the first side of the reflecting plate and the second side of the reflecting plate, and the shielding net is arranged on the first side of the reflecting plate and covers the first through hole.

4. The detection device according to claim 3, characterized in that: The shielding net includes meshes, and the maximum span of the meshes is smaller than the set wavelength.

5. The detection device according to claim 2, characterized in that: The detection device further comprises a shielding cover, wherein the shielding cover is located at the second side of the reflecting plate, and the camera assembly is arranged in the shielding cover.

6. The detection device according to claim 5, characterized in that The reflector is provided with a metal window, which is located on the second side of the reflector and surrounds the periphery of the first through hole. The metal window abuts against the shielding cover, and the reflector forms a shielding cavity with the shielding cover through the metal window.

7. The detection device according to claim 6, characterized in that The metal window comprises a groove and a metal layer, wherein the groove is arranged on the surface of the second side of the reflector plate, and the metal layer is arranged on the groove surface of the groove; at least part of the shielding cover is embedded in the groove and abuts against the metal layer.

8. The detection device according to claim 3, characterized in that: The detection device also includes a lighting assembly, which is located between the first through hole and the lighting member. The lighting assembly is used to allow light passing through the first through hole to reach the lighting member, and the thickness of the lighting assembly is smaller than the thickness of the reflector.

9. The detection device according to claim 8, characterized in that The lighting assembly includes a metal sheet and a second through hole provided on the metal sheet; The cross-sectional area of ​​the second through hole is smaller than the cross-sectional area of ​​the first through hole, and the second through hole is opposite to the first through hole and the lighting element respectively.

10. The detection device according to claim 1, characterized in that The detection device also includes a shell and a flaring member, wherein the detection component, the camera component and the shielding component are located inside the shell; the flaring member is arranged on the shell and faces the shielding component.

11. The detection device according to claim 1, characterized in that The detection device is a nonlinear node detector, and the set electromagnetic wave includes a fundamental wave, a second harmonic and a third harmonic.

12. The detection device according to claim 4, characterized in that The maximum span of the mesh is greater than or equal to the wavelength of light collected by the camera assembly.

13. The detection device according to claim 3, characterized in that: The distance between the shielding net and the camera assembly is less than 1.0 mm.

14. The detection device according to claim 6, characterized in that The metal window is a boss-type structure or a groove-type structure.

15. The detection device according to claim 10, characterized in that The expansion piece is in the shape of a funnel with openings at both ends, wherein the end with a smaller opening diameter faces the shielding assembly, and the end with a larger opening diameter extends to the surface of the shell.

16. A nonlinear node detector, comprising a detection component, a camera component and a shielding component, wherein the detection component is used to transmit and receive a set electromagnetic wave with a set wavelength, and the set wavelength is greater than the wavelength of the light collected by the camera component; The camera assembly is installed on the detection assembly, the shielding assembly covers the light collecting component of the camera assembly, and the shielding assembly is used for allowing the light collected by the light collecting component to pass through and shielding the set electromagnetic wave.

17. The nonlinear node detector according to claim 16, characterized in that: The nonlinear node detector comprises a probe part, a rotating shaft and a connecting rod; the probe part is connected to the connecting rod through the rotating shaft; the detection component, the camera component and the shielding component are all located in the probe part.

18. The nonlinear node detector according to claim 16, characterized in that: The detection assembly includes an antenna plate and a reflective plate, the antenna plate is located on a first side of the reflective plate, the camera assembly is located on a second side of the reflective plate, and the orientation of the first side of the reflective plate is opposite to that of the second side of the reflective plate; the shielding assembly is installed on the reflective plate.

19. The nonlinear node detector according to claim 18, characterized in that: The shielding assembly includes a first through hole and a shielding net, wherein the first through hole is arranged on the reflecting plate, the first through hole connects the first side of the reflecting plate and the second side of the reflecting plate, and the shielding net is arranged on the first side of the reflecting plate and covers the first through hole.

20. The nonlinear node detector according to claim 18, characterized in that: The detection device further comprises a shielding cover, wherein the shielding cover is located at the second side of the reflecting plate, and the camera assembly is arranged in the shielding cover.

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