CN111610400B

CN111610400B - Detection system and detection method

Info

Publication number: CN111610400B
Application number: CN202010488075.4A
Authority: CN
Inventors: 童彦锭
Original assignee: Suzhou Raken Technology Co Ltd
Current assignee: Suzhou Raken Technology Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2023-05-02
Anticipated expiration: 2040-06-02
Also published as: CN111610400A

Abstract

A detection system 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 bridging circuit and is 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 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 and audio content accords with the detection parameter. Therefore, each performance of the device to be detected is confirmed in real time through the detection device, and 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

Detection system and detection method

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 on a device under test.

Background

After the assembly of a device is completed in the production line, a detection program is needed to ensure that each performance of the device meets the standard. In the prior art, the detection procedure is divided into a number of steps, corresponding to the detection of different properties of the device, respectively. However, such conventional inspection efficiency is not good, and each performance inspection result of each device cannot be grasped accurately in real time.

Therefore, how to solve the above-mentioned drawbacks of the prior art is a subject to be studied and 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 above purpose, the invention adopts the following technical scheme:

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 bridging circuit and is used for receiving the detection signals and inputting the detection signals to a device to be tested so that the device to be tested plays a plurality of video and audio 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 or not.

The relevant content explanation in the technical scheme is as follows:

1. in the above scheme, the method further comprises:

the jig is arranged on the conveying device, and 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 in the video content accords with 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 and audio content 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 aspect, the detection device includes:

a first detector for capturing a first video of the video contents and transmitting the first video to the control circuit through the power line; and

and the second detector is used for capturing a second video and audio content, wherein when the control circuit judges that the first video and audio content accords with a first detection parameter of the detection parameters, 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.

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 displaced to a first position, the first wireless sensor transmits a first identification signal to the jig; and

a second wireless sensor for being connected with the jig in a wireless manner, wherein when the jig is displaced to a second position, the second wireless sensor transmits a second identification signal to the jig,

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 positioned 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 positioned 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 fixture is electrically connected with the device to be tested through one of the connection interfaces HDMI, AUDIO, UART and I2C.

a method of detection comprising:

transmitting a detection signal transmitted by a control circuit to a jig through a power line network bridging circuit and a power line;

inputting the detection signal to a device to be detected through the jig;

capturing an audio-video content played by the device to be tested through a detection device;

judging whether the video and audio content accords with a detection parameter or not;

when the video and audio content accords with the detection parameter, controlling a conveying device to move the jig from a first position to a second position; and

when the video content does not accord with the detection parameter, the conveying device is controlled to move the jig from the first position to a third position.

The relevant content explanation in the technical scheme is as follows:

1. in the above scheme, the method further comprises:

when the jig is positioned at the first position, a first identification signal is received to the control circuit in a wireless mode;

the control circuit transmits an audio-video file to the jig through the power line.

The working principle and the advantages of the invention are as follows:

the invention discloses a detection system, which comprises a control circuit, a power line network bridging 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 is 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 video and audio 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 and audio content accords with the detection parameter.

The invention also relates to a detection method, which comprises the following steps: the first video transmitted from the control circuit is transmitted to the jig through the power line network bridging circuit and the power line. The first video is input to the device to be tested through the jig. And capturing the video and audio 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. When the video content accords with the detection parameter, the conveying device is controlled to move the jig from the first position to the second position. When the video content does not accord with the detection parameter, the conveying device is controlled 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 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 schematic diagram of a detection system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a detection system according to an embodiment of the present invention;

FIG. 3 is a flow chart of the steps of the detection method according to the embodiment of the present invention;

fig. 4 is a schematic diagram of a detection system according to an embodiment of the present invention.

In the above figures: 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. a detection system.

Detailed Description

The invention is further described below with reference to the accompanying drawings and examples:

examples: in the following description, numerous embodiments of the invention are described, with details of the embodiments being set forth in the accompanying drawings. However, it should be understood that these details are not to be applied in order to limit the invention. That is, in some embodiments of the invention, these details are not necessary. In addition, for the sake of simplicity of the drawing, some conventional structures and components are shown in the drawing in a simplified schematic manner.

Herein, when a component 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 mean that two or more elements co-operate or interact with each other. Furthermore, although the terms "first," "second," …, etc. are used herein to describe various elements, this term is merely intended to distinguish between components or operations that are described in the same technical term. Unless the context clearly indicates otherwise, the terms are not specifically intended or implied to be order or cis-ient nor intended to limit the invention.

As shown in fig. 1, the inspection system 100 includes a control circuit 110, a power line network bridge circuit 120, a jig 130, and an inspection device 140. The control circuit 110 is used for generating a plurality of detection signals. In some embodiments, the control circuit 110 may be a computer host for performing various operations. The control circuit 110 may also be implemented by a microcontroller (microcontroller), a microprocessor (microprocessor), a digital signal processor (digital signal processor), an application specific integrated circuit (application specific integrated circuit, ASIC), or a logic circuit.

In an embodiment, the power line network bridge circuit 120 may be disposed on a power supply port (e.g., a utility outlet) of the power grid, such that the power line network 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, a Fixture 130 (Fixture Device) is used to fix the Device under test DUT (Device under test), 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. Likewise, the DUT also has a HDMI, AUDIO, UART or I2C connection interface for connecting with the fixture 130 and performing data transmission.

The jig 130 is used for inputting the detection signals to the DUT to enable the DUT to play a plurality of audio/video contents (media). The "video content" may be video or audio. In some embodiments, the control circuit 110 may transmit the audio-video file and the detection signal to the fixture 130, so that the audio-video file is input to the DUT through the fixture 130, and the DUT plays the corresponding audio-video content. In other embodiments, the audio/video file may be stored in a storage device on the jig 130 in advance, and when the jig 130 receives the detection signal, the audio/video file is obtained from the storage device. In another embodiment, the audio and video content may also be pre-stored in the DUT. The control circuit 110 may transmit the detection signal to the power line network bridge circuit 120 through the power line P. The power line network bridge circuit 120 then transmits the detection signal to the DUT via the jig 130. The DUT plays the pre-stored video and audio content according to the detection signal.

In one embodiment, the detecting device 140 is electrically connected to the control circuit 110, and detects and captures the audio/video content from the DUT to be tested and transmits the audio/video content to the control circuit 110. In some embodiments, the detection device may include a microphone or camera for capturing video or audio played by the DUT. Furthermore, in an embodiment, the detection device 140 is installed in the fixture 130 or integrated with the fixture 130 as a single device, such that the detection device 140 corresponds to the position of the display screen or 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 audio/video contents conform to a plurality of detection parameters, so as to determine whether the DUT passes the corresponding detection procedure. The "detection parameter" may be a playing parameter of the audio-visual content, for example: whether the similarity between the colors of the picture presented by the DUT and the colors of the preset ideal picture reaches the standard value, whether the noise in the sound played by the DUT is smaller than the standard value, and whether the picture updating speed of the DUT accords with the standard value.

In an embodiment, the audio-visual content includes a first audio-visual and a second audio-visual, wherein the first audio-visual is a section of image, and the second audio-visual is a section of sound effect. At the first time, the detecting device 140 records the image 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 detecting device 140 records the sound effect played by the DUT to be detected, and transmits the recorded result to the control circuit 110 to compare whether the recorded result (i.e. the second audio/video) is the same as the second detection parameter.

As shown in fig. 1, in some embodiments, after the DUT connected to the fixture 130 is inspected at the first inspection station S10, the DUT and the fixture may also perform other inspection … … at the second inspection station S20, for example, the first inspection station S10 has a specific inspection environment (e.g., a specific environmental light), so that the inspection device 140 can inspect the image display capability of the DUT under the set condition. The second detection station S20 has another detection environment (such as specific environmental noise), so that the detection device 140 can detect the sound 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 a universal asynchronous receiver Transmitter (Universal Asynchronous Receiver/Transmitter, UART), a serial peripheral interface (Serial Peripheral Interface Bus, SPI), or an integrated circuit bus (Inter-Integrated Circuit, I2C). However, when the DUT moves between the test stations, the transmission line needs to be manually connected to enable the DUT to receive the detection signal transmitted by the control circuit 110. To improve this, the control circuit 110 and the DUT are connected through the power line P and the power line network bridge circuit 120 in the present embodiment. In this connection, the DUT can continuously perform data transmission with the control circuit 110 during the whole detection process, so as to omit the time and cost of manually plugging and unplugging the transmission interface. That is, the control circuit 110 will be able to remotely send the detection signal to the jig 130 via the power line P. Meanwhile, the detecting device 140 can also transmit the captured video content back to the control circuit 110 in real time through the power line P or other modes to determine whether the current detecting 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 conveying device 150 (e.g., a conveyor belt, a robot arm, etc.). The jig 130 and the detecting device 140 are displaced to different positions by the conveying device 150. In some embodiments, the power line network bridge circuit 120, the jig 130 and the DUT are disposed on the transporting device 150, so that the transporting device 150 can move the positions of the power line network bridge circuit 120, the jig 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 it is determined that no test item passes through a specific test station (e.g., the first test station), the control circuit 110 may issue a notification to record that the DUT failed the test item of the test station, and control the transporting device 150 to transport the DUT to a third location corresponding to a "repair area". The notification may include the number of the DUT, failed items, test alignment results, possible reasons for failed tests, and the test station information.

Referring to fig. 1, when the jig 130 is located at a first position corresponding to the first detection station S10, the detection device 140 is configured to capture a first video played by the DUT. When the control circuit 110 detects that the first audio/video captured by the device 140 matches 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 from the first position to a second position corresponding to the second detection station S20 (as shown in fig. 2).

On the other hand, when the control circuit 110 determines that the first audio/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 fails the test procedure will be moved in unison.

In some embodiments, the third location is different from the second location in distance from the first location. For example, the second position is located 2 units of distance to the right of the first position, and the third position is located 3 units of distance to the left of the first position. In addition, the conveying direction of the conveying device 150 is not limited to the manner shown in fig. 1 and 2. In some embodiments, the conveying device 150 may also have the capability 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 (for example, 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, the description is omitted herein.

In one embodiment, the first detection station S10 includes a first wireless sensor S11. The second detection station S20 includes a second wireless sensor S21. In one embodiment, each inspection station (e.g., the first inspection station S10 or the second inspection station S20) may be coupled to another power line bridge circuit, and a connection relationship is established between the power line bridge circuit and the control circuit 110. In another embodiment, each inspection station (e.g. the first inspection station S10 or the second inspection station S20) may establish a connection with the control circuit 110 through other manners (e.g. Wifi or other communication protocols). In addition, the jig 130 or the detecting device 140 is provided with a corresponding wireless sensing module (not shown) for performing wireless connection (e.g. through bluetooth or near field communication NFC) with the first wireless sensor S11 and the second wireless sensor S21. After 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 jig 130 or the DUT has moved to a specific inspection station. In some embodiments, when the jig 130 is moved to the first position, the first wireless sensor S11 can establish a wireless connection with the wireless sensing module on the jig 130 to transmit the first identification signal to the jig 130 and obtain the information of the jig 130 or the DUT to be tested. The first wireless sensor S11 then transmits 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 the second identification signal to the jig 130, and transmit the information of the jig 130 or the DUT to the control circuit 130. Thus, the control circuit 130 can determine which inspection station the jig 130 or the DUT is at according to the information, so that the control circuit transmits inspection signals to a specific inspection station.

Referring to fig. 3, a detection method according to some embodiments of the present disclosure is described herein. In step S301, the transporting 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 receives the first identification signal transmitted from the first wireless sensor S11 in a wireless manner, and transmits information identifying the jig 130 or the DUT and the first identification signal to the control circuit 110. In step S302, the control circuit 110 checks whether the detecting device (e.g. shooting capability, radio capability) of the detecting apparatus 140 is normal. For example, the control circuit 110 transmits the test command "CC-70-77-01-05-00-FF" and the detecting device 140 generates the response command "CC-70-77-01-05-01-FF", if the control circuit 110 determines that the 6 th code in the response command is "01", it means that the detecting device 140 is normal. The data packets (i.e., test instructions, response instructions, or detection signals) between the control circuit 110 and the detection device 140 may be appended within 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 performed, and the transporting device 150 moves the jig 130 to the third position. If the control circuit 110 determines that the detecting device 140 is normal, step S303 is executed, and the control circuit 110 transmits the detecting signal to the jig 130 through the power line network bridge circuit 120 and the power line P. In some embodiments, the detection signal transmitted by the control circuit 110 includes a first audio/video file for enabling the DUT to play a 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 video file. The first audio/video file may be stored in the fixture 130 in advance. After receiving the detection signal, the jig transmits the pre-stored first audio-video file and the detection signal to the 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 video file. The first audio-video file can be stored in the DUT in advance. When the control circuit 110 transmits the detection signal to the DUT through the jig 130, the DUT can play the first audio/video file in the audio/video content to be detected.

In step S304, the jig 130 inputs the detection signal to the DUT, so that the DUT plays the first audio/video file according to the detection signal. When the first audio/video file is played, the detecting device 140 captures a 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 the image. In another embodiment, the jig 130 transmits the audio file to the DUT so that the DUT plays the audio.

In step S305, the control circuit 110 receives the first video via the power line P and the power line network bridge circuit 120, and determines whether the first video meets 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 conforms to 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. Next, the detection system 100 can perform a second detection at the second detection station S20 according to the same principle as in the foregoing steps S301 to 306.

In the foregoing embodiment, the detecting device 140 is disposed on the jig 130 to move along with the jig 130. In other embodiments, the inspection device may also be installed at the inspection station. FIG. 4 is a schematic diagram of a detection system 400 according to some embodiments 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 similar components are described in the previous paragraphs, which are not necessarily described in conjunction with the components of fig. 4, but are not repeated here.

As shown in fig. 4, the detection device includes a first detector 141 and a second detector 142. The first detector 141 is disposed in the first detection station S10, and is configured to capture a first audio/video played by the 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, and is used for capturing a second audio/video 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 audio/video accords with the first detection parameter, the control circuit 110 will send 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 via a power line P or other means. Therefore, the control circuit can judge whether the video playing function of the DUT of the device to be tested is normal or not. 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.

The components, method steps, or technical features of the foregoing embodiments may be combined with each other, and are not limited to the text description order or the drawing presentation order in the present disclosure.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. A detection system, characterized by: comprising the following steps:

a control circuit for generating a plurality of detection signals;

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 or not;

the conveying device is arranged on the jig, and the conveying device is used for moving the position of the jig;

the detection device is arranged on the jig, and the jig and the detection device are displaced to different positions through the conveying device;

when the control circuit judges that a first video in the video content accords with 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;

2. The detection system according to claim 1, wherein: the detection device includes:

and the second detector is used for capturing a second video and audio content, wherein when the control circuit judges that the first video and audio content accords with a first detection parameter of the detection parameters, the control circuit controls the conveying device to move the jig from a first position corresponding to the first detector to a second position corresponding to the second detector.

3. The detection system according to claim 1, wherein: also comprises:

4. A method of detection, characterized by: comprising:

inputting the detection signal to a device to be detected through the jig;

5. The method of claim 4, wherein: also comprises: