Automatic detection system and automatic detection method
Through the automatic detection system detects the electromagnetic anti-interference ability of electronic equipment in an electromagnetic interference environment, the problem of working stability detection of equipment in an electromagnetic interference environment in the prior art is solved, and efficient improvement and cost reduction of equipment are achieved.
Patent Information
- Application Number
- CN202310793553.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-29
- Publication Date
- 2024-12-31
AI Technical Summary
The prior art is difficult to effectively detect the working stability of electronic equipment in an electromagnetic interference environment, resulting in insufficient immunity of electromagnetic signal interference in equipment design.
An automatic detection system is designed, including a test cavity, antenna assembly, radio frequency module and detection module, to simulate an electromagnetic interference environment through radio frequency signals, collect equipment information and save abnormal information to evaluate the electromagnetic anti-interference ability of the equipment.
It realizes the electromagnetic anti-interference ability of electronic equipment automatically detects the electromagnetic interference in an electromagnetic interference environment, provides an improved solution for equipment problems, reduces detection costs and improves work efficiency.
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Figure CN119232287A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of equipment detection, and in particular to an automatic detection system and an automatic detection method. Background Art
[0002] Currently, many signals such as mobile phone communications and WIFI are concentrated in the microwave band. The strength of electromagnetic signals in daily environments is hundreds or even thousands of times higher than in the past. This requires that many electronic devices not only consider the stability of the device itself in their design, but also consider their working stability in an environment with electromagnetic signal interference, which corresponds to the EMS of the device, that is, the degree of immunity of the electronic device to the electromagnetic disturbance in the environment. Therefore, it is necessary to provide an automatic detection system and an automatic detection method, which can perform EMS detection on electronic devices. Summary of the invention
[0003] The embodiments of the present invention provide an automatic detection system and an automatic detection method.
[0004] An automatic detection system according to an embodiment of the present invention is used to detect the anti-electromagnetic interference capability of a device to be tested, and the automatic detection system comprises:
[0005] A test cavity, wherein a test cavity is provided in the test cavity, and the test cavity is used to place the device to be tested;
[0006] An antenna assembly, wherein the antenna assembly is installed in the test cavity;
[0007] A radio frequency module, the radio frequency module is electrically connected to the antenna assembly, the radio frequency module is used to output a radio frequency signal, and the radio frequency signal is fed into the test cavity through the antenna assembly;
[0008] The detection module is used to collect information of the device under test and save the abnormal information of the device under test when it is determined that the device under test is abnormal according to the information of the device under test.
[0009] In the above-mentioned automatic detection system, the RF signal emitted by the RF module can be fed into the test cavity through the antenna assembly to radiate the RF signal to the device under test, thereby simulating the electromagnetic interference environment in which the device under test is located. The detection module can collect information about the device under test, and then automatically detect the electromagnetic anti-interference capability of the device under test in the electromagnetic interference environment, and save abnormal information of the device under test, which is conducive to subsequent improvement of problems with the device under test.
[0010] In some embodiments, the information of the device under test includes image information of the device under test, the automatic detection system includes a camera, the detection module is electrically connected to the camera, and the detection module is used to collect image information of the device under test through the camera.
[0011] In some embodiments, the information of the device under test includes temperature information of the device under test, the automatic detection system includes a temperature detection device, the detection module is electrically connected to the temperature detection device, and the detection module is used to collect the temperature information of the device under test through the temperature detection device.
[0012] In some embodiments, the information of the device under test includes sound information of the device under test, the automatic detection system includes a sound sensor, the detection module is electrically connected to the sound sensor, and the detection module is used to collect the sound information of the device under test through the sound sensor.
[0013] In some embodiments, the automatic detection system further includes a communication module, the detection module is electrically connected to the communication module, and the communication module is used to send abnormal information of the device under test to a preset terminal.
[0014] In some embodiments, the automatic detection system includes a control panel, the control panel includes a display screen, the display screen is used to display abnormal information of the device under test, and / or;
[0015] The automatic detection system includes a sound component, and the sound component is used to prompt abnormal information of the device to be tested.
[0016] In some embodiments, the automatic detection system includes an electrical room and a heat dissipation component, the electrical room is located outside the test cavity, the heat dissipation component and the RF module are located in the electrical room, and the heat dissipation component is used to dissipate heat from the RF module.
[0017] In some embodiments, the heat dissipation assembly includes an air guide and a heat dissipation motor, the air guide covers the radio frequency module, the air guide is provided with an air inlet and an air outlet, and the air inlet is arranged corresponding to the heat dissipation motor.
[0018] An automatic detection method according to an embodiment of the present invention is used to detect the anti-electromagnetic interference capability of a device to be tested, and the automatic detection method comprises:
[0019] Controlling the radio frequency module to output a radio frequency signal according to the start-up instruction, wherein the radio frequency signal is fed into the test cavity through the antenna assembly and radiated to the device under test located in the test cavity;
[0020] The information of the device under test is collected, and when it is determined that the device under test is abnormal according to the information of the device under test, the abnormal information of the device under test is saved.
[0021] In the above automatic detection method, the RF signal emitted by the RF module can be fed into the test cavity through the antenna assembly to radiate the RF signal to the device under test, thereby simulating the electromagnetic interference environment in which the device under test is located. The detection module can collect information about the device under test, and then automatically detect the electromagnetic anti-interference capability of the device under test in the electromagnetic interference environment, and save the abnormal information of the device under test, which is conducive to the subsequent improvement of problems of the device under test.
[0022] In certain embodiments, the detection method further comprises:
[0023] Send the abnormal information of the device under test to a preset terminal.
[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0026] Figure 1 It is a structural schematic diagram of an automatic detection system according to an embodiment of the present invention;
[0027] Figure 2 It is an exploded schematic diagram of an automatic detection system according to an embodiment of the present invention;
[0028] Figure 3 to Figure 4 Schematic diagram of the process of the automatic detection method according to the embodiment of the present invention.
[0029] Component Symbols:
[0030] Automatic detection system-100, test cavity-12, antenna assembly-14, radio frequency module-16, detection module-18, test cavity-20, antenna-22, base 24, control panel-26, door body-28, opening-30, camera-32, communication module-34, display screen-36, electrical room-38, heat dissipation assembly-40, air guide-42, heat dissipation motor-44, air inlet-46, air outlet-48, air inlet end-50, air outlet end-52, power supply module-54. DETAILED DESCRIPTION
[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0035] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0036] Please refer to Figure 1 to Figure 2 An automatic detection system 100 provided in an embodiment of the present invention is used to detect the anti-electromagnetic interference capability of a device under test.
[0037] The automatic detection system 100 includes a test cavity 12, an antenna assembly 14, a radio frequency module 16, and a detection module 18. A test cavity 20 is provided in the test cavity 12, and the test cavity 20 is used to place the device under test. The antenna assembly 14 is installed in the test cavity 12. The radio frequency module 16 is electrically connected to the antenna assembly 14, and the radio frequency module 16 is used to output a radio frequency signal, and the radio frequency signal is fed into the test cavity 20 through the antenna assembly 14. The detection module 18 is used to collect information about the device under test, and when it is determined that the device under test is abnormal based on the information of the device under test, save the abnormal information of the device under test.
[0038] In the above-mentioned automatic detection system 100, the RF signal emitted by the RF module 16 can be fed into the test cavity 20 via the antenna assembly 14 to radiate the RF signal to the device under test, thereby simulating the electromagnetic interference environment in which the device under test is located. The detection module 18 can collect information about the device under test, and then automatically detect the electromagnetic anti-interference capability of the device under test in the electromagnetic interference environment, and save abnormal information of the device under test, which is conducive to subsequent improvement of problems of the device under test.
[0039] Specifically, in one embodiment, the device under test may include but is not limited to a chip, a circuit board or an electronic device, which is not specifically limited herein.
[0040] A test cavity 20 is formed in the test cavity 12 . The device to be tested can be placed in the test cavity 20 and can be radiated by the radio frequency signal radiated by the automatic detection system 100 to perform an electromagnetic immunity (EMS) test.
[0041] Optionally, the test cavity 12 is made of a material having the ability to shield radio frequency signals, such as a metal cavity. Further, the test cavity 12 may include a body made of plastic material and a metal layer covering the surface of the body to reduce manufacturing costs and reduce weight. Further, optionally, the wall of the test cavity 12 close to the test cavity 20 may be covered with an absorbing layer to absorb radio frequency signals radiated to the wall and reduce reflection of radio frequency signals.
[0042] In one embodiment, the radio frequency signal includes but is not limited to a radio frequency signal in the microwave frequency band. The radio frequency module 16 may include a signal generating circuit, an incident power detection circuit, and a reflected power detection circuit. The signal generating circuit may include components such as a crystal oscillator, an amplifier, a circulator, and a phase shifter. The incident power detection circuit is used to detect the power of the radio frequency signal incident into the test cavity 20. The radio frequency module 16 may adjust the radio frequency signal output by the signal generating circuit according to the data fed back by the incident power detection circuit, so that the power of the radio frequency signal incident into the test cavity 20 is close to or equal to the target power.
[0043] The reflected power detection circuit is used to detect the power of the RF signal reflected by the test cavity 20. The RF module 16 can determine the energy of the RF signal absorbed by the device under test based on the data fed back by the incident power detection circuit and the reflected power detection circuit.
[0044] Please refer to Figure 2 The antenna assembly 14 may include an antenna 22 and a base 24, the base 24 is mounted on a side plate (such as a top plate) of the test cavity 12, and the antenna 22 is mounted on the base 24. Optionally, the antenna 22 may extend into the test cavity 20 in whole or in part. The antenna 22 may be an array antenna 22 or other types of antennas 22, which are not specifically limited herein. Optionally, the antenna 22 is a broadband antenna 22.
[0045] exist Figure 1 and Figure 2 In the embodiment, the automatic detection system 100 further includes a control panel 26 mounted on the test cavity 12, and the control panel 26 is electrically connected to the RF module 16 and the detection module 18. The control panel 26 may include input components such as buttons and a touch screen, and the operator may set the parameters of the RF signal through the input components, such as the frequency band, phase, power, etc. of the RF signal, so as to generate a variety of RF signals within a certain frequency band, and to simulate the complex electromagnetic interference scenario of the device under test in the actual environment.
[0046] The automatic detection system 100 further includes a door 28. An opening 30 is provided on one side of the test chamber 20. The door 28 is rotatably mounted at the opening 30 to open or close the opening 30. When the door 28 opens the opening 30, an operator can take and place the device to be tested. When the door 28 is closed, testing can be performed. The door 285 is used to prevent the radio frequency signal from leaking from the test chamber 20 into the air, thereby improving the safety of the detection process.
[0047] The RF module 16 generates a corresponding RF signal according to the set RF signal parameters. The RF signal is fed into the test cavity 20 via the antenna assembly 14 and radiated to the device under test.
[0048] During the test, the device under test can be powered on, and the detection module 18 collects information about the device under test in the test cavity 20. If the device under test can work normally under the interference of the current RF signal, it means that the device under test has the corresponding electromagnetic immunity, or has a high electromagnetic immunity, under the current RF signal.
[0049] If the device under test cannot work normally under the interference of the current radio frequency signal, it is determined that the device under test is abnormal. The detection module 18 can save the abnormal information of the device under test.
[0050] The information corresponding to the abnormal operation of the device under test (preset abnormal information) or the information corresponding to the normal operation (preset normal information) can be determined and stored in advance through simulation, experience or other means. The information of the device under test collected during the detection process can be compared with the preset abnormal information or the preset normal information to obtain the corresponding detection results, and the detection results can be used to determine whether the device under test is abnormal or normal.
[0051] Optionally, the automatic detection system 100 may preset multiple preset abnormal information or multiple preset normal information. When the information of the device under test is consistent with one or more of the preset abnormal information, or is inconsistent with one or more of the preset normal information, it is determined that the device under test is abnormal.
[0052] Optionally, the automatic detection system 100 has a USB interface. When a USB flash drive is inserted into the USB interface, the automatic detection system 100 can save the abnormal information of the device under test into the USB flash drive, so that the operator can use the abnormal information of the device under test conveniently.
[0053] In some embodiments, the information of the device under test includes image information of the device under test. The automatic detection system 100 includes a camera 32 . The detection module 18 is electrically connected to the camera 32 . The detection module 18 is used to collect image information of the device under test through the camera 32 .
[0054] In this way, it is possible to determine whether the device under test is abnormal by collecting image information of the device under test.
[0055] Specifically, the camera 32 can be installed in the test cavity 20, or outside the test cavity 20. Optionally, the camera 32 can be placed inside the electromagnetic shielding member to reduce the impact of the radio frequency signal on the camera 32. The camera 32 can collect image information of the device under test in the test cavity 20 through the light transmission hole.
[0056] In one embodiment, the device under test includes a display screen 36, and the preset abnormal information includes a flickering screen, a distorted screen, or other abnormal conditions with color changes. During the detection process, the detection module 18 can collect image information of the device under test through the camera 32 to identify whether the device under test has a flickering screen, a distorted screen, or other abnormal conditions with color changes.
[0057] If the device under test has screen flickering, screen distortion or other abnormal conditions with color changes, it is determined that the device under test is abnormal, and the abnormal information is screen flickering, screen distortion or other abnormal conditions with color changes. The detection module 18 saves the abnormal information of the device under test, which is conducive to subsequent improvement of the problems of the device under test.
[0058] It can be understood that in other implementations, the device under test is not limited to including the display screen 36 , and the abnormal information of the device under test can be identified by using the image information of the device under test collected by the camera 32 .
[0059] In some embodiments, the information of the device under test includes temperature information of the device under test, the automatic detection system 100 includes a temperature detection device, the detection module 18 is electrically connected to the temperature detection device, and the detection module 18 is used to collect the temperature information of the device under test through the temperature detection device.
[0060] In this way, it is possible to determine whether the device under test is abnormal by collecting temperature information of the device under test.
[0061] Specifically, the temperature detection device may be a contact temperature detection device or a non-contact temperature detection device, which is not specifically limited here.
[0062] The contact temperature detection device may include a thermistor, such as an NTC (negative temperature coefficient) thermistor. The thermistor may be arranged on the detection part of the device to be tested. The temperature detection device may use the thermistor to detect the temperature of the detection part of the device to be tested.
[0063] The non-contact temperature detection device may include an infrared sensor, which may be directed toward the device to be tested to collect temperature information of the device to be tested. The temperature detection device may use an infrared sensor to detect the temperature information of the device to be tested. The detection module 18 may identify an abnormal state of local overheating of the device to be tested through the infrared sensor.
[0064] The preset abnormal information may include an abnormal temperature range. If the temperature information of the device under test determines that the temperature of the device under test (such as local temperature) is within the abnormal temperature range, it can be determined that the device under test is abnormal, and the abnormal information is that the device under test is overheated or locally overheated.
[0065] In some embodiments, the information of the device under test includes sound information of the device under test, the automatic detection system 100 includes a sound sensor, the detection module 18 is electrically connected to the sound sensor, and the detection module 18 is used to collect the sound information of the device under test through the sound sensor.
[0066] In this way, it is possible to determine whether the device under test is abnormal by collecting sound information of the device under test.
[0067] Specifically, the sound sensor may include a microphone, which may be installed in the test cavity 20 or outside the test cavity 20. Optionally, the microphone may be placed inside the electromagnetic shielding member to reduce the influence of the radio frequency signal on the microphone. The microphone may collect sound information of the device under test in the test cavity 20 through the sound pickup hole.
[0068] The preset abnormal information may include abnormal sound information. During the detection process, the detection module 18 may collect the sound information of the device under test through the sound sensor, and compare the abnormal sound information with the sound information of the device under test to determine whether the device under test is abnormal. If the sound information of the device under test is consistent with the abnormal sound information, it is determined that the device under test is abnormal, and the abnormal information is abnormal sound.
[0069] In one example, during the detection process, a component of the object to be tested makes a sound due to cracking, and the detection module 18 can determine that the device to be tested is abnormal based on the cracking sound information of the device to be tested, and the abnormal information is that the component of the device to be tested is cracked.
[0070] In some embodiments, the automatic detection system 100 further includes a communication module 34 , the detection module 18 is electrically connected to the communication module 34 , and the communication module 34 is used to send abnormal information of the device under test to a preset terminal.
[0071] In this way, it is convenient to uniformly manage abnormal information of the equipment under test.
[0072] Specifically, the preset terminal includes but is not limited to cloud servers, mobile phones, tablet computers, personal computers and other terminals. Optionally, the preset terminal can be pre-bound to the automatic detection system 100. When the detection is completed or when the abnormal information of the device under test is obtained, the automatic detection system 100 can use the communication module 34 to send the abnormal information to the preset terminal, so that the preset terminal can manage the abnormal information of multiple devices under test or the different abnormal information of the same device under test in a unified manner. The communication module 34 can communicate with the preset terminal in a wired or wireless manner, without specific limitation.
[0073] exist Figure 2 In the embodiment, the communication module 34 is installed on the control panel 26 . It can be understood that in other embodiments, the communication module 34 can also be installed at other positions of the automatic detection system 100 , and is not limited to being installed on the control panel 26 .
[0074] In some embodiments, the automatic detection system 100 includes a control panel 26, the control panel 26 includes a display screen 36, the display screen 36 is used to display abnormal information of the device under test, and / or; the automatic detection system 100 includes a sound component, the sound component is used to prompt abnormal information of the device under test.
[0075] In this way, it is convenient for on-site operators to understand the test results in a timely manner.
[0076] Specifically, the display screen 36 can display text, graphics, etc. of abnormal information of the device under test. In one embodiment, the display screen 36 can display "the device under test has a flashing screen phenomenon" or similar text or graphics. Optionally, the display screen 36 can be a touch screen 36, and the operator can input relevant instructions through the touch screen 36, and the control panel 26 controls the operation of the automatic detection system 100 according to the instructions, such as controlling the start and stop of the corresponding function.
[0077] In one embodiment, the sound component may include a buzzer, which may emit a rapid "beep, beep" prompt sound to prompt that the device under test has a screen flickering phenomenon, or may emit a long "beep---beep---beep" prompt sound to prompt that the device under test has a screen distortion phenomenon, etc.
[0078] In one embodiment, the sound component may include a speaker, and the speaker emits a voice message of “the device under test has a screen flashing phenomenon” or a similar voice message.
[0079] It should be pointed out that in other implementations, the automatic detection system 100 may also use other display methods or prompt methods to display or prompt abnormal information of the device under test, and is not limited to the above implementations.
[0080] In some embodiments, the automatic detection system 100 includes an electrical chamber 38 and a heat dissipation assembly 40 . The electrical chamber 38 is located outside the test cavity 20 . The heat dissipation assembly 40 and the RF module 16 are located inside the electrical chamber 38 . The heat dissipation assembly 40 is used to dissipate heat for the RF module 16 .
[0081] In this way, it is possible to avoid the temperature of the RF module 16 increasing and thus reducing the accuracy of the RF module 16 in adjusting the RF signal.
[0082] Specifically, the RF module 16 needs to output RF signals when working, and its temperature rises quickly. When the temperature of the RF module 16 is high, the internal components of the RF module 16 are affected by the high temperature, and the accuracy of regulating the RF signal will be reduced. By setting the heat dissipation component 40, when the temperature of the RF module 16 exceeds the temperature threshold, the heat dissipation component 40 can be started to dissipate heat for the RF module 16, thereby ensuring the accuracy of the RF module 16 in regulating the RF signal. At the same time, it can also prevent the components of the RF module 16 from aging too quickly due to excessive temperature, thereby reducing its failure rate and extending the service life of the RF module 16.
[0083] In one embodiment, the heat dissipation component 40 can use liquid cooling to dissipate heat from the RF module 16. In one embodiment, the heat dissipation component 40 can use air cooling to dissipate heat from the RF module 16. In one embodiment, the heat dissipation component 40 can use liquid cooling and air cooling to dissipate heat from the RF module 16.
[0084] The antenna assembly 14 may also be at least partially disposed in the electrical chamber 38, and the heat dissipation assembly 40 may also dissipate heat for the antenna assembly 14. It is understandable that the heat dissipation assembly 40 may dissipate heat for other components in the electrical chamber 38 in addition to dissipating heat for the RF module 16 and the antenna assembly 14.
[0085] In some embodiments, the heat dissipation assembly 40 includes an air guide 42 and a heat dissipation motor 44 . The air guide 42 covers the RF module 16 . The air guide 42 is provided with an air inlet 46 and an air outlet 48 . The air inlet 46 is provided corresponding to the heat dissipation motor 44 .
[0086] In this way, the heat dissipation component 40 can dissipate the heat of the RF module 16 by air cooling.
[0087] Specifically, the heat dissipation motor 44 can provide wind when working. The wind blown by the heat dissipation motor 44 enters the interior of the air guide 42, and can take away the heat of the RF module 16 to cool it down. The air inlet 46 of the air guide 42 is correspondingly arranged with the heat dissipation motor 44 so that the heat dissipation motor 44 can send the generated wind into the air guide 42. After the wind takes away the heat of the RF module 16, it can be discharged from the air outlet 48 of the air guide 42, thereby reducing the temperature of the RF module 16 and the inside of the electrical room 38.
[0088] exist Figure 2 In the figure, the air guide 42 includes an air inlet end 50 and an air outlet end 52. The air inlet end 50 is provided with an air inlet 46, and the air outlet end 52 is provided with an air outlet 48. The area of the air inlet 46 is larger than the area of the air outlet 48. Along the direction from the air inlet end 50 to the air outlet end 52, the internal flow channel of the air guide 42 is in a gradually contracting shape, so that the wind can be accelerated in the air guide 42, so as to speed up the removal of heat from the RF module 16 and other components and parts, and improve the heat dissipation efficiency.
[0089] The automatic detection system 100 also includes a power supply module 54 , which is disposed above the air guide 42 . The power supply module 54 can be thermally connected to the air guide 42 , and the heat dissipation assembly 40 can dissipate heat from the power supply module 54 through the air guide 42 .
[0090] The power supply module 54 is electrically connected to various components and parts of the automatic detection system 100, including but not limited to the radio frequency module 16, the control panel 26, the heat dissipation component 40, the detection module 18, etc. The power supply module 54 can also be electrically connected to the socket in the test cavity 20, and the power plug of the device under test can be inserted into the socket, so that the power supply module 54 provides the device under test with the power (DC and / or AC) required for operation, so that the device under test can work, thereby detecting the anti-electromagnetic interference capability of the device under test.
[0091] In summary, compared with large systems such as microwave darkrooms and TEM cells used in related technologies, the automatic detection system 100 of the embodiment of the present invention has a simple structure and miniaturization, which greatly reduces the system cost. Moreover, the entire automatic detection system 100 is easy to move and occupies a small space. It can detect the EMS performance of the device under test by simulating a complex electromagnetic interference environment. At the same time, the detection process is automated, and the operator does not need to keep watching, which greatly improves work efficiency.
[0092] The test chamber 20 can be made to have different volume sizes to adapt to different detection scenarios. In some examples, the volume of the test chamber 20 is 35L (liters), 70L or 150L, which can be placed in devices to be tested of different sizes, expanding the range of detection objects of the automatic detection system 100, and is also easy to carry. The outer dimensions of the 70L automatic detection system 100 can be 600mm*600mm*570mm. However, the present design is not limited to this. In other embodiments, the volume of the test chamber 20 can also be configured to other values, which is not limited to this. Further optionally, the spatial dimensions of the test chamber 20 can be 350mm*340mm*320mm, or 480mm*420mm*360mm, or 650mm*600*400mm, which can be placed in devices to be tested of different sizes. However, the present design is not limited to this. In other embodiments, the spatial dimensions of the test chamber 20 can also be customized to meet different test requirements, which is not specifically limited.
[0093] Please refer to Figure 3 An automatic detection method provided by an embodiment of the present invention is used to detect the anti-electromagnetic interference capability of a device to be tested, and the automatic detection method includes:
[0094] Step 101, according to the start instruction, the RF module 16 is controlled to output a RF signal, and the RF signal is fed into the test cavity 20 through the antenna assembly 14 and radiated to the device under test located in the test cavity 20;
[0095] Step 103 , collecting information of the device under test, and when it is determined that the device under test is abnormal according to the information of the device under test, saving the abnormal information of the device under test.
[0096] In the above-mentioned automatic detection method, the RF signal emitted by the RF module 16 can be fed into the test cavity 20 via the antenna assembly 14 to radiate the RF signal to the device under test, thereby simulating the electromagnetic interference environment in which the device under test is located. The detection module 18 can collect information about the device under test, and then automatically detect the electromagnetic anti-interference capability of the device under test in the electromagnetic interference environment, and save abnormal information of the device under test, which is conducive to subsequent improvement of problems of the device under test.
[0097] Specifically, the start instruction may be generated by the control panel in response to a user operation.
[0098] It should be noted that the above explanation of the implementation method and beneficial effects of the automatic detection system 100 is also applicable to the automatic detection method of this embodiment, and will not be elaborated here in detail to avoid redundancy.
[0099] In certain embodiments, see Figure 4 , the automatic detection method also includes:
[0100] Step 105: Send abnormal information of the device under test to a preset terminal.
[0101] In this way, it is convenient to uniformly manage abnormal information of the equipment under test.
[0102] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0103] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An automatic detection system for detecting the anti-electromagnetic interference capability of a device to be tested, characterized in that: The automatic detection system comprises: A test cavity, wherein a test cavity is provided in the test cavity, and the test cavity is used to place the device to be tested; An antenna assembly, wherein the antenna assembly is installed in the test cavity; A radio frequency module, the radio frequency module is electrically connected to the antenna assembly, the radio frequency module is used to output a radio frequency signal, and the radio frequency signal is fed into the test cavity through the antenna assembly; The detection module is used to collect information of the device under test and save the abnormal information of the device under test when it is determined that the device under test is abnormal according to the information of the device under test.
2. The automatic detection system according to claim 1, characterized in that: The information of the device under test includes image information of the device under test, the automatic detection system includes a camera, the detection module is electrically connected to the camera, and the detection module is used to collect the image information of the device under test through the camera.
3. The automatic detection system according to claim 1, characterized in that: The information of the device under test includes temperature information of the device under test, the automatic detection system includes a temperature detection device, the detection module is electrically connected to the temperature detection device, and the detection module is used to collect the temperature information of the device under test through the temperature detection device.
4. The automatic detection system according to claim 1, characterized in that: The information of the device under test includes sound information of the device under test, the automatic detection system includes a sound sensor, the detection module is electrically connected to the sound sensor, and the detection module is used to collect the sound information of the device under test through the sound sensor.
5. The automatic detection system according to claim 1, characterized in that: The automatic detection system further comprises a communication module, the detection module is electrically connected to the communication module, and the communication module is used to send abnormal information of the device under test to a preset terminal.
6. The automatic detection system according to claim 1, characterized in that: The automatic detection system comprises a control panel, the control panel comprises a display screen, the display screen is used to display abnormal information of the device to be tested, and / or; The automatic detection system includes a sound component, and the sound component is used to prompt abnormal information of the device to be tested.
7. The automatic detection system according to claim 1, characterized in that: The automatic detection system comprises an electrical room and a heat dissipation component, wherein the electrical room is located outside the test cavity, the heat dissipation component and the radio frequency module are located in the electrical room, and the heat dissipation component is used for dissipating heat for the radio frequency module.
8. The automatic detection system according to claim 7, characterized in that: The heat dissipation component includes an air guide and a heat dissipation motor. The air guide covers the radio frequency module. The air guide is provided with an air inlet and an air outlet. The air inlet is arranged corresponding to the heat dissipation motor.
9. An automatic detection method for detecting the anti-electromagnetic interference capability of a device to be tested, characterized in that: The automatic detection method comprises: Controlling the radio frequency module to output a radio frequency signal according to the start-up instruction, wherein the radio frequency signal is fed into the test cavity through the antenna assembly and radiated to the device under test located in the test cavity; The information of the device under test is collected, and when it is determined that the device under test is abnormal according to the information of the device under test, the abnormal information of the device under test is saved.
10. The automatic detection method according to claim 9, characterized in that: The detection method further comprises: Send the abnormal information of the device under test to a preset terminal.
