CN111610400A - Detection system and detection method - Google Patents
Detection system and detection method Download PDFInfo
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- CN111610400A CN111610400A CN202010488075.4A CN202010488075A CN111610400A CN 111610400 A CN111610400 A CN 111610400A CN 202010488075 A CN202010488075 A CN 202010488075A CN 111610400 A CN111610400 A CN 111610400A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
A detection system comprises a control circuit, a power line network bridge circuit, a fixture and a detection device. The control circuit is used for generating a plurality of detection signals. The power line network bridge circuit receives the detection signal through the power line. The fixture is electrically connected to the power line through the power line network bridge circuit and used for receiving the detection signals. The jig is used for inputting the detection signal to the device to be detected, so that the device to be detected plays a plurality of audio-video contents. The detection device is used for capturing the video and audio content and transmitting the video and audio content to the control circuit. The control circuit is used for judging whether the video content accords with the detection parameters. Therefore, each performance of the device to be detected is confirmed in real time through the detection device, and the confirmation information is fed back to the control circuit in real time through the power line, so that the efficiency and the accuracy of the detection system can be greatly improved.
Description
Technical Field
The present invention relates to a detection system, and more particularly, to a detection system and a detection method for detecting audio/video data played by a device under test.
Background
After the assembly of a device is completed in a production line, a detection procedure is required to ensure that various performances of the device meet standards. In the prior art, the detection procedure is divided into a number of steps, each corresponding to a different performance detection of the device. However, such conventional detection is inefficient, and it is impossible to accurately grasp each performance detection result of each device in real time.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The invention aims to provide a detection system and a detection method.
In order to achieve the purpose, the invention adopts the technical scheme that:
a detection system, comprising:
a control circuit for generating a plurality of detection signals;
a power line network bridge circuit for receiving the detection signals through a power line;
the jig is electrically connected to the power line through the power line network bridge circuit and used for receiving the detection signals and inputting the detection signals to a device to be detected so that the device to be detected plays a plurality of audio and video contents; and
the detection device is used for capturing the video and audio contents and transmitting the video and audio contents to the control circuit, wherein the control circuit is used for judging whether the video and audio contents accord with a plurality of detection parameters.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the method further comprises:
the jig is arranged on the conveying device, wherein the conveying device is used for moving the position of the jig.
2. In the above scheme, the detection device is arranged on the jig, and the jig and the detection device are displaced to different positions through the conveying device.
3. In the above scheme, when the control circuit determines that a first video of the video contents conforms to a first detection parameter of the detection parameters, the control circuit is configured to control the conveying device to move the jig from a first position to a second position;
when the control circuit judges that the first video in the video contents does not accord with the first detection parameter in the detection parameters, the control circuit is used for controlling the conveying device to move the jig from the first position to a third position.
4. In the above solution, the detecting device includes:
the first detector is used for capturing a first video and audio in the video and audio contents and transmitting the first video and audio to the control circuit through the power line; and
and the control circuit controls the conveying device to move the jig from a first position corresponding to the first detection circuit to a second position corresponding to the second detection circuit when judging that the first video in the video contents conforms to a first detection parameter in the detection parameters.
5. In the above scheme, the method further comprises:
the first wireless sensor is used for being connected with the jig in a wireless mode, and when the jig is moved to a first position, the first wireless sensor transmits a first identification signal to the jig; and
a second wireless sensor for connecting with the jig in a wireless manner, wherein the second wireless sensor transmits a second identification signal to the jig when the jig is moved to a second position,
when the first identification signal is received, the jig transmits the first identification signal and identification information containing the jig or the device to be tested to the control circuit through the power line, and the control circuit judges that the device to be tested is located near the first position according to the first identification signal and the identification information of the jig or the device to be tested;
when the second identification signal is received, the jig transmits the second identification signal and identification information containing the jig or the device to be tested to the control circuit through the power line, and the control circuit judges that the device to be tested is located near the second position according to the second identification signal and the identification information of the jig or the device to be tested.
6. In the above scheme, the detection device is a microphone or a camera.
7. In the above scheme, the jig is electrically connected to the device under test through one of the connection interfaces of HDMI, AUDIO, UART, and I2C.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of detection, comprising:
transmitting a detection signal transmitted from a control circuit to a jig through a power line network bridge circuit and a power line;
inputting the detection signal to a device to be detected through the jig;
capturing a video and audio content played by the device to be detected through a detection device;
judging whether the video and audio content accords with a detection parameter;
when the audio-visual content accords with the detection parameters, controlling a conveying device to move the jig from a first position to a second position; and
and when the audio-video content does not accord with the detection parameters, controlling the conveying device to move the jig from the first position to a third position.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the method further comprises:
when the jig is located at the first position, a first identification signal is received to the control circuit in a wireless mode;
the control circuit transmits a video file to the jig through the power line.
The working principle and the advantages of the invention are as follows:
the invention provides a detection system, which comprises a control circuit, a power line network bridge circuit, a jig and a detection device. The control circuit is used for generating a plurality of detection signals. The power line network bridge circuit receives the detection signal through the power line. The jig is electrically connected to the power line through the power line network bridge and used for receiving the detection signals and inputting the detection signals to the device to be tested so that the device to be tested plays a plurality of audio and video contents. The detection device is used for capturing the video and audio content and transmitting the video and audio content to the control circuit. The control circuit is used for judging whether the video content accords with the detection parameters.
The invention also relates to a detection method, which comprises the following steps: the first video and audio transmitted from the control circuit is transmitted to the fixture through the power line network bridge circuit and the power line. And inputting the first audio-video to the device to be tested through the jig. And capturing the audio and video content played by the device to be detected through the detection device. And judging whether the video and audio content accords with the detection parameters. And when the audio-video content accords with the detection parameters, controlling the conveying device to move the jig from the first position to the second position. And when the audio-video content does not accord with the detection parameters, controlling the conveying device to move the jig from the first position to the third position.
Therefore, each performance of the device to be detected is confirmed in real time through the detection device, and the confirmation information is fed back to the control circuit in real time through the power line, so that the efficiency and the accuracy of the detection system can be greatly improved.
Drawings
FIG. 1 is a first schematic diagram of a detection system according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of a detection system according to an embodiment of the present invention;
FIG. 3 is a flow chart of the steps of a detection method according to an embodiment of the present invention;
FIG. 4 is a third schematic diagram of a detection system according to an embodiment of the present invention.
In the above drawings: 100. a detection system; 110. a control circuit; 120. a power line network bridge circuit; 130. a jig; 140. a detection device; 141. a first detector; 142. a second detector; 150. a conveying device; p. a power line; dut, device under test; s10, a first detection station; s11, a first wireless sensor; s20, a second detection station; s21, a second wireless sensor; S301-S307; 400. and (4) a detection system.
Detailed Description
The invention is further described with reference to the following figures and examples:
example (b): in the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these details should not be used to limit the invention. That is, these details are not necessary in some embodiments of the invention. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
When an element is referred to as being "connected" or "coupled," it can be referred to as being "electrically connected" or "electrically coupled. "connected" or "coupled" may also be used to indicate that two or more elements are in mutual engagement or interaction. Further, although terms such as "first," "second," …, etc., may be used herein to describe various components, such terms are used merely to distinguish one component from another or to distinguish one component from another that is described in the same technical terms. Unless the context clearly dictates otherwise, the terms do not specifically refer or imply an order or sequence nor are they intended to limit the invention.
As shown in fig. 1, the detection system 100 includes a control circuit 110, a power line network bridge circuit 120, a fixture 130, and a detection device 140. The control circuit 110 is used for generating a plurality of detection signals. In some embodiments, the control circuit 110 can be a host computer for performing various operations. The control circuit 110 may also be implemented by a micro control unit (microcontroller), a microprocessor (microprocessor), a digital signal processor (digital signal processor), an Application Specific Integrated Circuit (ASIC), or a logic circuit.
In one embodiment, the plc bridge circuit 120 may be disposed at a power port (e.g., a commercial power outlet) of the power grid, such that the plc bridge circuit 120 is electrically connected to the control circuit 110 through the power line P and receives the detection signals through the power line P. In some embodiments, the detection signal is transmitted in the form of a data packet.
In one embodiment, the Fixture 130 (texture Device) is used to fix the dut (Device interface) and is electrically connected to the power line P through the power line network bridge 120 to receive the detection signals. In some embodiments, the fixture 130 has a port, and the connection interface of the port is one of HDMI, AUDIO, UART, and I2C. In another embodiment, the fixture 130 has a plurality of ports, and the connection interface of each port is one of HDMI, AUDIO, UART, and I2C. Similarly, the DUT also has an HDMI, AUDIO, UART or I2C connection interface to connect with the fixture 130 for data transmission.
The fixture 130 is used to input these detection signals to the DUT, so that the DUT plays several audio/video contents (media). The "audio/video content" can be video or sound. In some embodiments, the control circuit 110 can transmit the video file and the detection signal to the fixture 130, so as to input the video file to the DUT through the fixture 130, and enable the DUT to play the corresponding video content. In other embodiments, the audio/video file may be stored in a storage device of the fixture 130 in advance, and when the fixture 130 receives the detection signal, the audio/video file is obtained from the storage device. In another embodiment, the audio/video content may also be pre-stored in the DUT. The control circuit 110 may transmit the detection signal to the plc bridge circuit 120 through the power line P. The plc bridge circuit 120 transmits the detection signal to the DUT through the fixture 130. And the DUT plays the pre-stored audio and video content according to the detection signal.
In one embodiment, the detection device 140 is electrically connected to the control circuit 110, and transmits the detected and captured video and audio content played by the DUT to the control circuit 110. In some embodiments, the detection device may include a microphone or a camera for capturing video or audio played by the DUT. In addition, in one embodiment, the detecting device 140 is installed in the fixture 130 or integrated with the fixture 130 into a single device, so that the detecting device 140 corresponds to the position of the display screen or the speaker of the DUT. In another embodiment, the detecting device 140 is not directly connected to the jig 130, but is electrically connected to the control circuit 110.
In one embodiment, the control circuit 110 is further configured to determine whether the video contents conform to a plurality of detection parameters, so as to determine whether the DUT passes a corresponding detection procedure. The "detection parameters" may be playback parameters of the video content, such as: whether the similarity between the color of the picture presented by the device to be tested DUT and the color of the preset ideal picture reaches a standard value, whether the noise in the sound played by the device to be tested DUT is smaller than the standard value, and whether the picture updating speed of the device to be tested DUT accords with the standard value.
In one embodiment, the audio/video content includes a first audio/video and a second audio/video, wherein the first audio/video is a segment of video and the second audio/video is a segment of audio. At the first time, the detection device 140 records the video played by the DUT and transmits the recorded result to the control circuit 110 to compare whether the recorded result (i.e., the first video) is the same as the first detection parameter. Then, in the second time, the detection device 140 records the sound effect played by the DUT and transmits the recording result to the control circuit 110 to compare whether the recording result (i.e., the second audio/video) is the same as the second detection parameter.
In some embodiments, as shown in FIG. 1, after the DUT connected to the fixture 130 is tested at the first testing station S10, the DUT and the fixture may be tested … … at the second testing station S20. for example, the first testing station S10 has a specific testing environment (e.g., specific ambient light) so that the testing device 140 can detect the image display capability of the DUT under the set conditions. The second testing station S20 has another testing environment (e.g., specific environmental noise) so that the testing device 140 can detect the sound effect playing capability of the DUT under the set condition.
It should be noted that in other embodiments, the fixture 130 generally performs data transmission with the control Circuit 110 through a wired communication Interface such as Universal Asynchronous Receiver/Transmitter (UART), Serial Peripheral Interface (SPI), or Integrated Circuit Bus (I2C). However, when the DUT moves between the test stations, the transmission line needs to be manually connected to receive the test signal transmitted by the control circuit 110. To improve this, the control circuit 110 and the DUT are connected via the power line P and the plc bridge circuit 120 in this embodiment. Through this connection, the DUT can continue to perform data transmission with the control circuit 110 during the entire testing process, thereby saving time and cost for manually plugging and unplugging the transmission interface. That is, the control circuit 110 can remotely send the detection signal to the fixture 130 through the power line P. Meanwhile, the detection device 140 can also transmit the captured audio/video content back to the control circuit 110 in real time through the power line P or other methods to determine whether the current detection procedure is qualified. Therefore, the inspection system 100 can have better management capability, inspection accuracy and inspection efficiency.
Referring to FIG. 1, in some embodiments, the inspection system 100 further includes a conveyor 150 (e.g., a conveyor belt, a robot arm, etc.). The jig 130 and the detecting device 140 are moved to different positions by the conveying device 150. In some embodiments, the plc bridge circuit 120, the fixture 130 and the DUT are disposed on the transporting device 150, so that the transporting device 150 can move the locations of the plc bridge circuit 120, the fixture 130 and the DUT. For example: the jig 130 is displaced to a first position corresponding to the first inspection station S10 and to a second position corresponding to the second inspection station S20. In another embodiment, when determining that the testing item has not passed through a specific testing station (e.g., the first testing station), the control circuit 110 can issue a notification to record that the DUT has not passed through the testing item of the testing station, and control the transporting device 150 to transport the DUT to the third position corresponding to the "maintenance area". The notification may include the DUT's number, failed item, test comparison result, possible reason for failed test, and the test station information.
Referring to fig. 1, when the fixture 130 is located at the first position corresponding to the first testing station S10, the testing device 140 is used to capture a first video and audio played by the device under test DUT. When the control circuit 110 detects that the first video captured by the detection device 140 conforms to the first detection parameter, the control circuit 110 transmits a confirmation message to the conveying device 150, so that the conveying device 150 moves the jig 130 to the second position (as shown in fig. 2) corresponding to the second detection station S20 from the first position.
Accordingly, when the control circuit 110 determines that the first video does not conform to the first detection parameter, the control circuit 110 transmits an error message to the conveying device 150, so that the conveying device 150 moves the jig 130 from the first position to a third position different from the second position. The third position corresponds to a "repair area" to which the DUT that has not passed the test procedure is moved in unison.
In some embodiments, the third position is different from the second position by a distance different from the first position. For example, the second location is 2 unit distances to the right of the first location, and the third location is 3 unit distances to the left of the first location. In addition, the conveying direction of the conveying device 150 is not limited to the manner shown in fig. 1 and fig. 2. In some embodiments, the conveying device 150 may also be capable of conveying in different directions. For example: the first position and the second position are located in the first conveying direction, the third position is located in the second conveying direction, and an angle (such as 90 degrees) is formed between the first conveying direction and the second conveying direction. Since the definition and operation of the conveying device can be understood by those skilled in the art, they are not described herein in detail.
In one embodiment, the first detection station S10 includes a first wireless sensor S11. The second sensing station S20 includes a second wireless sensor S21. In one embodiment, each testing station (e.g., the first testing station S10 or the second testing station S20) may be coupled to another power line bridge circuit, and may be connected to the control circuit 110 via the power line bridge circuit. In another embodiment, each testing station (e.g., the first testing station S10 or the second testing station S20) may be connected to the control circuit 110 by other means (e.g., Wifi or other communication protocol). In addition, the fixture 130 or the detecting device 140 is provided with a corresponding wireless sensing module (not shown) for performing wireless connection (e.g., via bluetooth or NFC) with the first wireless sensor S11 and the second wireless sensor S21. When the wireless sensor module is connected to the wireless sensor (e.g., the first wireless sensor S11 or the second wireless sensor S21), the wireless sensor can read the information of the fixture 130 or the DUT. The wireless sensor can then transmit the read information to the control circuit 110, so that the control circuit 110 knows that the fixture 130 or DUT has moved to a specific testing station. In some embodiments, when the fixture 130 is moved to the first position, the first wireless sensor S11 can establish a wireless connection with the wireless sensing module on the fixture 130 to transmit the first identification signal to the fixture 130 and obtain information about the fixture 130 or the DUT. The first wireless sensor S11 then sends this information to the control circuit 110. Similarly, when the jig 130 is moved to the second position, the second wireless sensor S21 can establish a wireless connection with the wireless sensing module on the jig 130 to transmit a second identification signal to the jig 130 and transmit information of the jig 130 or the device under test DUT to the control circuit 130. Therefore, the control circuit 130 can determine which testing station the fixture 130 or the DUT is at according to the information, so that the control circuit transmits the testing signal to the specific testing station.
Referring now to FIG. 3, a method for detecting a portion of an embodiment of the present disclosure is described. In step S301, the conveying device 150 displaces the jig 130 (together with the detecting device 140) to a first position corresponding to the first detecting station S10, so that the jig 130 wirelessly receives the first identification signal transmitted from the first wireless sensor S11, and transmits information identifying the jig 130 or the device under test DUT and the first identification signal to the control circuit 110. In step S302, the control circuit 110 checks whether the detection devices (e.g., photographing capability, sound reception capability) of the detection apparatus 140 are normal. For example, the control circuit 110 transmits a test command "CC-7077-01-05-00-FF" and the detection device 140 generates a response command "CC-70-77-01-05-01-FF", and if the control circuit 110 determines that the code 6 in the response command is "01", it indicates that the detection device 140 is normal. The data packets (i.e., test commands, response commands, or detection signals) between the control circuit 110 and the detection device 140 may be appended to the application layer in the TCP/IP packet format.
If the control circuit 110 determines that the detecting device 140 is abnormal, step S306 is executed, and the conveying device 150 moves the jig 130 to the third position. If the control circuit 110 determines that the detection device 140 is normal, step S303 is executed, in which the control circuit 110 transmits the detection signal to the fixture 130 through the plc bridge circuit 120 and the power line P. In some embodiments, the detection signal transmitted by the control circuit 110 includes a first video file for enabling the DUT to play a first video of the video contents to be detected. In some embodiments, the detection signal transmitted by the control circuit 110 does not include the first video file. The first video file can be stored in the fixture 130 in advance. After receiving the detection signal, the fixture transmits the pre-stored first audio-video file and the detection signal to the Device Under Test (DUT), so that the DUT can play the first audio-video in the audio-video content to be detected. In some embodiments, the detection signal transmitted by the control circuit 110 does not include the first audio/video file. The first AV file can be pre-stored in the DUT. When the control circuit 110 transmits the detection signal to the DUT through the fixture 130, the DUT can play the first video file of the video content to be detected.
In step S304, the fixture 130 inputs the test signal to the device under test DUT, so that the device under test DUT plays the first audio/video file according to the test signal. When the first audio/video file is played, the detection device 140 captures the first audio/video in the audio/video content played by the DUT. In one embodiment, the fixture 130 transmits the image file to the DUT through the HDMI interface, so that the DUT displays an image frame. In another embodiment, the tool 130 transmits the audio file to the DUT, so that the DUT broadcasts the audio.
In step S305, the control circuit 110 receives the first video through the power line P and the power line network bridge circuit 120, and determines whether the first video conforms to the first detection parameter. In step S306, if the first video does not conform to the first detection parameter, the control circuit transmits an error signal to the conveying device, and the conveying device 150 moves the jig 130 from the first position to the third position. In step S307, if the first video matches the first detection parameter, the control circuit 110 transmits a confirmation signal to the conveying device 150, and the conveying device 150 moves the jig 130 from the first position to the second position corresponding to the second detection station S20. Then, the inspection system 100 can perform a second inspection at the second inspection station S20 by the same principle as the aforementioned steps S301 to 306.
In the foregoing embodiment, the detecting device 140 is disposed on the fixture 130 to move along with the fixture 130. In other embodiments, the inspection device may be installed in the inspection station. FIG. 4 is a diagram of a detection system 400 according to a portion of the present disclosure. In fig. 4, similar components related to the embodiment of fig. 1 are denoted by the same reference numerals for easy understanding, and the specific principles of the similar components have been described in detail in the previous paragraphs, which are not repeated herein if necessary for describing the components in fig. 4 in a cooperative relationship.
As shown in fig. 4, the detecting device includes a first detector 141 and a second detector 142. The first detector 141 is disposed in the first detecting station S10 and is used for capturing a first audio/video played by the device under test DUT at the first position. The first detector 141 is electrically connected to the control circuit 110 for transmitting the captured first video to the control circuit 110. Similarly, the second detector 142 is disposed in the second detecting station S20 for capturing a second video and audio played by the DUT at the second position. Accordingly, the control circuit 110 can also receive the first video and the second video through the control circuit 110. When the control circuit 110 determines that the first video conforms to the first detection parameter, the control circuit 110 sends a confirmation signal to the conveying device 150 to control the conveying device 150 to move the jig 130 from the first position to the second position. The first detector 141 and the second detector 142 may be coupled to the control circuit 110 through the power line P or other methods. Therefore, the control circuit can judge whether the audio-video playing function of the DUT is normally operated. The other coupling means may be, for example, USB, ethernet or other wired connection means, or other wireless connection means such as WiFi or bluetooth.
Various components, method steps or technical features of the foregoing embodiments may be combined with each other without being limited by the order of description of characters or order of presentation of drawings in the disclosure.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A detection system, characterized by: the method comprises the following steps:
a control circuit for generating a plurality of detection signals;
a power line network bridge circuit for receiving the detection signals through a power line;
the jig is electrically connected to the power line through the power line network bridge circuit and used for receiving the detection signals and inputting the detection signals to a device to be detected so that the device to be detected plays a plurality of audio and video contents; and
the detection device is used for capturing the video and audio contents and transmitting the video and audio contents to the control circuit, wherein the control circuit is used for judging whether the video and audio contents accord with a plurality of detection parameters.
2. The detection system of claim 1, wherein: further comprising:
the jig is arranged on the conveying device, wherein the conveying device is used for moving the position of the jig.
3. The detection system of claim 2, wherein: the detection device is arranged on the jig, and the jig and the detection device are displaced to different positions through the conveying device.
4. The detection system of claim 3, wherein: when the control circuit judges that a first video in the video contents conforms to a first detection parameter in the detection parameters, the control circuit is used for controlling the conveying device to move the jig from a first position to a second position;
when the control circuit judges that the first video in the video contents does not accord with the first detection parameter in the detection parameters, the control circuit is used for controlling the conveying device to move the jig from the first position to a third position.
5. The detection system of claim 2, wherein: the detection device includes:
the first detector is used for capturing a first video and audio in the video and audio contents and transmitting the first video and audio to the control circuit through the power line; and
and the control circuit controls the conveying device to move the jig from a first position corresponding to the first detection circuit to a second position corresponding to the second detection circuit when judging that the first video in the video contents conforms to a first detection parameter in the detection parameters.
6. The detection system of claim 1, wherein: further comprising:
the first wireless sensor is used for being connected with the jig in a wireless mode, and when the jig is moved to a first position, the first wireless sensor transmits a first identification signal to the jig; and
a second wireless sensor for connecting with the jig in a wireless manner, wherein the second wireless sensor transmits a second identification signal to the jig when the jig is moved to a second position,
when the first identification signal is received, the jig transmits the first identification signal and identification information containing the jig or the device to be tested to the control circuit through the power line, and the control circuit judges that the device to be tested is located near the first position according to the first identification signal and the identification information of the jig or the device to be tested;
when the second identification signal is received, the jig transmits the second identification signal and identification information containing the jig or the device to be tested to the control circuit through the power line, and the control circuit judges that the device to be tested is located near the second position according to the second identification signal and the identification information of the jig or the device to be tested.
7. The detection system of claim 1, wherein: the detection device is a microphone or a camera.
8. The detection system of claim 1, wherein: the jig is electrically connected with the device to be tested through one of the connection interfaces of HDMI, AUDIO, UART and I2C.
9. A method of detection, characterized by: comprises the following steps:
transmitting a detection signal transmitted from a control circuit to a jig through a power line network bridge circuit and a power line;
inputting the detection signal to a device to be detected through the jig;
capturing a video and audio content played by the device to be detected through a detection device;
judging whether the video and audio content accords with a detection parameter;
when the audio-visual content accords with the detection parameters, controlling a conveying device to move the jig from a first position to a second position; and
and when the audio-video content does not accord with the detection parameters, controlling the conveying device to move the jig from the first position to a third position.
10. The detection method according to claim 9, characterized in that: further comprising:
when the jig is located at the first position, a first identification signal is received to the control circuit in a wireless mode;
the control circuit transmits a video file to the jig through the power line.
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