CN114528160A

CN114528160A - Product detection device, product detection system and product detection method

Info

Publication number: CN114528160A
Application number: CN202011320768.9A
Authority: CN
Inventors: 杨顺富; 邱奕纲; 陈威丞
Original assignee: Primax Electronics Ltd
Current assignee: Primax Electronics Ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2022-05-24

Abstract

The invention relates to a product detection device, a product detection system and a product detection method applied to the product detection system. The system comprises a computer device, at least one power supply detection instrument and a product detection device. The product detection device comprises a processing unit, a plurality of USB-C transmission ends and a plurality of detection connecting ends. The method comprises the following steps: connecting at least one USB-C product to be detected to the USB-C transmission end, and connecting the at least one power supply detection instrument to the detection connection end; setting the USB-C transmission end connected with the USB-C product to be tested as a first role or a second role; the processing unit controls the USB-C transmission end of the first role to circularly run on a plurality of specified voltages and outputs voltage to the USB-C transmission end of the second role; and detecting the running condition of the corresponding USB-C product to be detected by the connected power supply detecting instrument.

Description

Product detection device, product detection system and product detection method

Technical Field

The present invention relates to a product inspection apparatus, a product inspection system and a product inspection method applied thereto, and more particularly, to a product inspection apparatus, a product inspection system and a product inspection method having a plurality of transmission terminals and capable of automatically inspecting a plurality of products to be inspected at the same time.

Background

A Universal Serial Bus (USB) is a specification or standard for connecting a computer device to an external device, and is also a specification of a power or signal input/output interface. In terms of hardware, the connectors or transmission interfaces of the Universal Serial Bus (USB) are currently divided into three types, i.e., Type-A, Type-B and Type-C (also called USB-C). The biggest characteristic of the Type-C connector is that the upper layer and the lower layer of the connector are the same, namely, the front side and the back side are not different.

In addition, USB Power Delivery (USB PD) is a USB-related charging protocol or standard promulgated by the USB developers forum, and is also a technology for fast charging. The latest version of the current USB-C PD is 3.0, and is for Type-C Type transmission interfaces.

Compared with the conventional standard USB 2.0 maximum power supply of 2.5 watts (W), USB 3.0 maximum power supply of 4.5 watts (W), and USB Battery Charging (BC), the current USB-C PD power supply range can reach 15-100 watts (W). Therefore, electronic devices using high power consumption, such as notebook computers, flat televisions, etc., can also be powered using a Type-C power cord.

Because the related peripheral electronic products supporting the USB-CPD can operate under relatively high voltage or high current, these products may face many technical problems including power charging, compatibility, safety or protection mechanism design. Therefore, the in-line testing of the relevant products before shipment is very important. Current production line testing for USB-C PD products may include detection of voltage or current items such as over-current protection (OCP), over-voltage protection (OVP), low-voltage protection (UVP), etc.

However, in the existing technology, the Device designed for USB-CPD detection can only Test one Device Under Test (DUT) at a time, and the voltage/current switching or control is performed manually by the detection personnel, and the process and result are observed visually. The mode not only causes the burden of detection personnel due to long working time, but also easily causes the problems of erroneous judgment and the like. Therefore, how to develop a detection system capable of simultaneously detecting a plurality of tested objects on a production line has become an important issue that is not ignored by developers or the industry.

Disclosure of Invention

The invention aims to provide a product detection device, a product detection system and a product detection method applied to the product detection system. The product detection device, the product detection system and the product detection method thereof can automatically detect a plurality of products to be detected by a plurality of transmission terminals, thereby effectively reducing detection time and reducing errors possibly caused by manual detection.

The invention relates to a product detection device, which is applied among a computer device, at least one power supply detection instrument and at least one USB-C product to be detected. The computer device is loaded with a detection program. The product detection device comprises a circuit board, a processing unit, a plurality of USB-C transmission ends and a plurality of detection connecting ends. The processing unit is arranged on the circuit board. The USB-C transmission end is arranged on the circuit board and used for providing connection for the at least one USB-C product to be tested. The detection connecting end is arranged on the circuit board and used for providing connection for the at least one power supply detection instrument, and the detection connecting end corresponds to the USB-C transmission end. The detection program is used for sending a detection instruction, the USB-C transmission end connected with the USB-C product to be detected is set to be a first role or a second role, the processing unit controls the USB-C transmission end of the first role to circularly operate on a plurality of specified voltages, the USB-C transmission end of the second role is output with voltage, and the connected power detection instrument detects the operation situation of the USB-C product to be detected on the corresponding USB-C transmission end.

Another aspect of the invention is a product inspection system applied to at least one USB-C product under inspection. The system comprises a computer device, at least one power detecting instrument and a product detecting device. The computer device is loaded with a detection program. The product detection device comprises a circuit board, a processing unit, a plurality of USB-C transmission ends and a plurality of detection connecting ends. The processing unit is arranged on the circuit board. The USB-C transmission end is arranged on the circuit board and used for providing connection for the at least one USB-C product to be tested. The detection connecting end is arranged on the circuit board and used for providing connection for the at least one power supply detection instrument, and the detection connecting end corresponds to the USB-C transmission end. The detection program is used for sending a detection instruction, the USB-C transmission end connected with the USB-C product to be detected is set to be a first role or a second role, the processing unit controls the USB-C transmission end of the first role to circularly operate on a plurality of specified voltages, the USB-C transmission end of the second role is output with voltage, and the connected power detection instrument detects the operation situation of the USB-C product to be detected on the corresponding USB-C transmission end.

The invention also provides a product detection method, which is applied to a product detection system and at least one USB-C product to be detected. The system comprises a computer device, at least one power detecting instrument and a product detecting device. The computer device is loaded with a detection program. The product detection device comprises a processing unit, a plurality of USB-C transmission ends and a plurality of detection connecting ends, wherein the detection connecting ends correspond to the USB-C transmission ends. The method comprises the following steps: connecting the at least one USB-C product to be detected to the USB-C transmission end, and connecting the at least one power supply detection instrument to the detection connection end; sending out a detection instruction by the detection program; checking, by the processing unit, a connection status of each USB-C transmission terminal; setting the USB-C transmission end connected with the USB-C product to be tested as a first role or a second role; the processing unit controls the USB-C transmission end of the first role to circularly run on a plurality of specified voltages and outputs voltage to the USB-C transmission end of the second role; and detecting the running situation of the USB-C product to be detected on the corresponding USB-C transmission end by the connected power supply detecting instrument.

In order that the manner in which the above recited and other aspects of the present invention are obtained can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the appended drawings.

Drawings

Fig. 1A is a schematic plan view of a product inspection apparatus 100 according to the present invention.

Fig. 1B is a schematic diagram of the product inspection system 1 according to the present invention for performing USB-C inspection.

Fig. 2 is a flowchart of a product detection method according to the present invention.

FIG. 3 is a schematic diagram of the product inspection system 1 according to the present invention for performing USB-C and Type-A inspection applications.

Wherein the reference numerals are as follows:

1: product detection system

100: product detection device

10: circuit board

11: processing unit

12: rear end connection interface

13: power socket

14: manual operation assembly

140: change-over switch

141 to 143: push-button

15: display assembly

21-26: USB-C transmission terminal

27. 28: Type-A transmission terminal

31a to 38 b: detection connecting end

41. 42: USB-C product to be tested

43: Type-A/C product to be tested

50: computer device

60: power supply detecting instrument

S1-S8: step (ii) of

Detailed Description

The following embodiments are provided for illustrative purposes only and do not limit the scope of the present invention. In addition, the drawings in the embodiments omit elements that are not necessary or that can be accomplished by a general technique to clearly show the technical features of the present invention.

A first embodiment of the product inspection apparatus, the product inspection system and the product inspection method applied thereto according to the present invention will be described. Please refer to fig. 1A and fig. 1B, wherein fig. 1A is a schematic plan view of a product inspection apparatus 100 according to the present invention; FIG. 1B is a schematic diagram of a product inspection system 1 according to the present invention for USB-C inspection. As shown in fig. 1A and fig. 1B, the product inspection system 1 mainly includes a computer device 50, a power source inspection apparatus 60 and the product inspection apparatus 100. The product inspection apparatus 100 mainly includes a circuit board 10, a processing unit 11, a plurality of USB-C transmission terminals 21-26 and a plurality of inspection connection terminals 31 a-38 b, wherein the processing unit 11, the USB-C transmission terminals 21-26 and the inspection connection terminals 31 a-38 b are disposed on the circuit board 10.

The product inspection apparatus 100 and the product inspection system 1 of the present invention are provided for inspecting a plurality of objects under test (DUTs) or products under inspection, particularly for USB-C (or Type-C) Type electronic products. As shown in fig. 1A and fig. 1B, six USB-C transmission terminals 21 to 26 are provided for illustration, and the product detection system 1 is used for illustration of detecting two USB-

C products

41 and 42 to be detected, that is, the USB-

C transmission terminals

21 and 22 can provide the USB-

C products

41 and 42 to be detected to form a connection. It can be understood that if there is only one output/input terminal of the USB-C product under test, the product testing apparatus 100 can test six USB-C products under test at most, or only one USB-C product under test as required.

Then, the detection connection terminals 31 a-38 b are provided for the power detecting instrument 60 to connect, and the arrangement of the detection connection terminals 31 a-36 b is corresponding to the USB-C transmission terminals 21-26. In detail, each USB-C transmission terminal corresponds to a group of two detection connection terminals (i.e. V + terminal and GND terminal), for example, the USB-C transmission terminal 21 corresponds to two

detection connection terminals

31a and 31b, the USB-C transmission terminal 22 corresponds to two

detection connection terminals

32a and 32b, and the power detection apparatus 60 can be connected by four transmission lines. In this embodiment, one end of the transmission line can be connected to the corresponding

detection connection terminals

31a, 31b, 32a, 32b of the USB-

C transmission terminals

21, 22 connected to the USB-

C products

41, 42 to be detected, respectively, and the other end is connected to the power detection apparatus 60.

The power source detection instrument 60 may be a prior art detection device, and is primarily used to detect the output/input power (W) behavior of a Device Under Test (DUT). Depending on the design, the power detection apparatus 60 can be designed to have a plurality of detection Channels (CH), for example, six detection channels, so that with the configuration of fig. 1B, only one power detection apparatus 60 can be connected to simultaneously detect six USB-C products to be tested. Of course, other embodiments may use only one detection channel, and for such a situation, the product detection apparatus 100 must connect a plurality of such power detection apparatuses for detection applications.

It should be noted that the detection connection terminals 31A-38B are arranged in sixteen (i.e. eight) groups in fig. 1A and 1B, because the product detection device 100 of the present invention may further have a plurality of Type-a

transmission terminals

27, 28, here illustrated as two, arranged on the circuit board 10, and the Type-a

transmission terminals

27, 28 correspond to one group of

detection connection terminals

37a, 37B and 38a, 38B, respectively. Thus, the Type-

A transmission terminals

27, 28 of FIGS. 1A and 1B can provide one to two Type-A products to be tested to form a connection. In other words, the number of the detection connection terminals 31a to 38b is set to correspond to two types of the USB-C transmission terminals 21 to 26 and the Type-

A transmission terminals

27 and 28. The application of the invention to the detection of Type-A products to be detected will be described later.

On the other hand, the product inspection apparatus 100 further has a rear connection interface 12 disposed on the circuit board 10. In this embodiment, the back-end connection interface 12 is designed in a USB type for providing the computer device 50 with a corresponding connection via a cable. Similarly, the computer device 50 can be a prior art device, i.e. a notebook computer or a desktop computer, and mainly the computer device 50 of the present invention carries a detection program for providing the user or the inspector with control and viewing the detection result. The inspection program may be presented as a window interface and may instruct the product inspection apparatus 100 to operate the product inspection method of the present invention.

In detail, the circuit board 10 may further include a hardware unit corresponding to each of the USB-C transmission ports 21-26 and supporting the USB-C PD communication protocol, for example, a Type-C Port Controller (TCPC) for controlling the USB-C transmission ports 21-26 respectively.

On the other hand, the processing unit 11 configured by a Micro Controller Unit (MCU) can be designed by using a software technology such as Type-C Port Manager (TCPM), and especially, the processing unit can be programmed and encoded for the purpose of supporting the detection of a plurality of USB-C products to be tested or managing multiple ports of USB-C PD communication protocol. Although not shown in fig. 1A and 1B, it is understood that each Type-C terminal controller is electrically connected between the USB-C transmission terminals 21-26 and the processing unit 11.

The invention is characterized in that a plurality of USB-C transmission ends are designed to simultaneously detect a plurality of USB-C products to be detected, and the designed part of the USB-C transmission ends have the function of Dual-Role Power (DRP). In detail, the USB-C (or Type-C) device can support a power supply (Source) role or a dual power supply (DRP) role in addition to the power consumption or Sink role. When the USB-C device is acting as a power utility (Sink) or end-user, the system will draw current from it; when the USB-C device is used as a power supply (Source) role or a power supply terminal, the system supplies power or charges the USB-C device. In this embodiment, the first and fourth USB-

C transmission terminals

21, 24 are designed to have DRP function, and the other four USB-

C transmission terminals

22, 23, 25, 26 can only serve as power (Sink) roles.

Fig. 2 is a flowchart of a product detection method according to the present invention. Firstly, connecting the at least one USB-C product to be tested to the USB-C transmission end, and connecting the at least one power detection instrument to the detection connection end (step S1); next, the detection program issues a detection command (step S2); then, the processing unit checks the connection status of each USB-C transmission terminal (step S3); then, the USB-C transmission terminal connected with the USB-C product to be tested is set as a first role or a second role (step S4); then, the processing unit controls the USB-C transmission terminal of the first role to cyclically run on a plurality of designated voltages (step S5), and outputs a voltage to the USB-C transmission terminal of the second role (step S7); finally, the connected power detecting instrument detects the operation status of the USB-C product to be tested on the corresponding USB-C transmission terminal (steps S6, S8).

In the step S1, the product inspection system 1 is designed to be in the initial state and ready to start inspection before this stage, and in the initial state, there is no connection between the USB-C transmission terminals 21-26 and the inspection connection terminals 31 a-38 b. As mentioned above, the way for the user to connect the USB-C products to be tested to the USB-C transmission terminals 21-26 depends on the design of the input/output terminals of the USB-C products to be tested. Therefore, a connection relationship between one transmission end and one product to be tested may be present between the USB-C transmission end and the USB-C product to be tested, or a connection relationship between a plurality of transmission ends and one product to be tested.

On the other hand, the connection mode of the power detecting instrument 60 to the detecting connection terminals 31 a-38 b has a similar corresponding relationship, that is, it depends on the number of detecting channels of the instrument itself, the number of USB-C products to be detected, and the number of output/input terminals. The power detecting instrument 60 that has completed the connection needs to be connected to an external power source to start the operation.

In step S2, as mentioned above, the user can execute the detection program on the computer device 50 and perform detection control in the window interface presented. In detail, the product inspection method of the present invention can be designed to be automatically executed, and when the user uses the inspection program to control and send an inspection command to the product inspection apparatus 100, the processing unit 11 can receive the inspection command and start to execute the corresponding running program code for inspection. The detection procedure is designed for monitoring and is performed by a plurality of USB-C transmitting terminals 21-26 conforming to the USB-C PD protocol, so that the detection procedure also has to issue the detection command according to the USB-C power transmission (PD) protocol.

For the step S3, the processing unit 11 can check the USB-C transmission ports 21-26 in sequence to see which transmission ports have connection status. In this embodiment, the USB-

C transmission terminals

21 and 22 are connected to the corresponding USB-

C products

41 and 42 to be tested at this stage, so that the processing unit 11 can know which transmission terminals to perform the subsequent testing. It is understood that this stage may also be a judgment procedure. For example, the processing unit 11 can check whether the transmission terminals form a connection; if the connection state exists, the next procedure is carried out; if there is no connection, the check can be repeated.

In step S4, the first role is set to be the power (Sink) role for the connected USB-

C device

41 and 42 to be tested to supply power to the circuit board 10. In this embodiment, all USB-C transmitting terminals 21-26 are designed to operate in the first role. Therefore, if the operation condition of the USB-

C products

41 and 42 to be tested in the power consumption (Sink) role is to be detected, the USB-

C products

41 and 42 to be tested can be connected to any one of the USB-C transmission terminals 21 to 26. In addition, the second role is set to enable the circuit board 10 or an external power Source (not shown in the drawings) to supply power to the connected USB-C product 41 to be tested, i.e. the power supply (Source) role.

In view of the above, the USB-C transmission terminal of the design part of the present invention is also provided for the operation of the second role, and in this embodiment, the first and fourth USB-

C transmission terminals

21 and 24 are also designed to operate in the second role. In other words, the first and fourth USB-

C transmission ports

21, 24 can support the DRP function simultaneously, while the other transmission ports, i.e. the other four USB-

C transmission ports

22, 23, 25, 26, can only operate in the first role of power utilization (Sink). Therefore, if the running situation of the USB-C product to be tested in the power supply (Source) role is to be detected, it can only be connected to the USB-C transmission terminal 21 or the USB-C transmission terminal 24.

Furthermore, if the role setting of step S4 is directed to the other four USB-

C transmission terminals

22, 23, 25, and 26, the user can complete the role setting, because these transmission terminals cannot operate the power supply (Source) role, and the user can determine that the product to be tested is fixed in the power utilization (Sink) role by connecting these transmission terminals. However, if the USB-C transmitter is connected to the first or fourth USB-

C transmitter

21, 24, the roles thereof may be power consumption (Sink) or power supply (Source). In this embodiment, this portion can be determined by the USB-C PD protocol, i.e., the power (Sink) or power (Source) role of the test can be set according to the requirement.

For the steps S5-S6, the power supply of the currently standard Type-C transmission line can support a plurality of voltages under the USB-C PD communication protocol, i.e., the specified voltages include 5 volts (V), 9 volts (V), 12 volts (V), 15 volts (V) or 20 volts (V). One feature of the present invention is that, for the detection of the first role of power utilization (Sink), the processing unit 11 sequentially operates the corresponding USB-

C transmission terminals

21 and 22 at the specified voltage and repeats the cycle, so that the USB-

C transmission terminals

21 and 22 can draw currents from the corresponding USB-

C products

41 and 42 to be tested at different specified voltages, and the power detection instrument 60 detects the load capacity of the corresponding USB-

C products

41 and 42 to be tested.

As mentioned above, according to the current art, the standard Type-C transmission line is rated for a load capacity of 3 amperes (A). In this embodiment, the power detecting device 60 can be set to pump the corresponding USB-

C products

41 and 42 to be tested with 3 amperes (a) or 4.25 amperes (a), and match different specified voltages in a circulating manner.

Taking the application of the USB-

C products

41 and 42 to be tested in fig. 1B as an example, the processing unit 11 can sequentially operate the transmission terminal 21 at 5 volts (V), the transmission terminal 22 at 5 volts (V), the transmission terminal 21 at 9 volts (V), the transmission terminal 22 at 9 volts (V), the transmission terminal 21 at 12 volts (V), the transmission terminal 22 at 12 volts (V), the transmission terminal 21 at 15 volts (V), the transmission terminal 22 at 15 volts (V), the transmission terminal 21 at 20 volts (V), and the transmission terminal 22 at 20 volts (V). Secondly, the processing unit 11 can perform automatic cycle control and design the number of times of repetition, and obtain accurate detection results by means of a plurality of different output detections. Of course, if there are more USB-C transmission terminals to connect with the USB-C products to be tested, the above-mentioned circulation method can be used to control these USB-C transmission terminals.

On the other hand, the power detection apparatus 60 of this embodiment also has an associated operation interface and display unit, which can provide user operation and can display the data including voltage, current or operation power measured by each channel. Furthermore, the computer device 50 can be connected to the power detecting instrument 60 by another transmission line signal, so that the power detecting instrument 60 can simultaneously transmit the detection result of the

products

41 and 42 to be detected for USB-C to the computer device 50, and the user can view the detection result on the window interface presented by the detection program. In addition, if the number of products to be tested is larger or the designed cycle number is larger, the present invention also designs that the detection program of the computer device 50 can automatically perform further sorting and calculation on the received data without the user spending time to process.

On the other hand, the steps S7 to S8 have a similar flow, but the steps S7 to S8 are directed to the processing when the USB-C transmission terminal is in the second role of power supply (Source). In the same way as in fig. 1B, the detection application for the second role of power supply (Source) is only available to the USB-C transmitter 21 supporting the DRP function. As shown in fig. 1A and fig. 1B, the circuit board 10 is further provided with a power socket 13 for providing a power line adapter connection, so that the power line can transmit power from the external power source (not shown in the drawings) to supply power to the USB-C to-be-tested product 41 connected to the USB-C transmission terminal 21 serving as the second role.

In this embodiment, an external power supply of 65 watts (W) is used to provide power, and the power detection instrument 60 is set to pump the corresponding USB-C product 41 to be tested with a current of 3 amperes (a) or 1.5 amperes (a), so as to detect the power supply capability of the product. It is understood that the operation power of the product detection device 100 including the processing unit 11 can also be provided by the external power source. Since the detection application for the second role of power supply (Source) includes outputting voltage to the USB-C transmission terminal 21 and drawing current by the power detecting instrument 60 to detect its operation, the signal in fig. 1B shows bidirectional transmission.

As can be seen from the above description, the detection of the first role and the detection of the second role cannot be performed simultaneously, and particularly, the first and fourth USB-

C transmission terminals

21 and 24 capable of supporting the DRP function in this embodiment are provided. In order to effectively plan the detection work, in fig. 1B, after the USB-

C transmission terminals

21 and 22 have run the detection of the first role, the USB-C transmission terminal 21 may be individually tested to run the second role. Furthermore, the first role detection process of steps S5-S6 and the second role detection process of steps S7-S8 do not have a certain sequence relationship, and a user can determine to perform the first role detection or the second role detection first according to the requirement. Alternatively, the processing unit 11 may be designed to automatically continue the detection of the second character after the detection of the first character is completed.

Furthermore, fig. 1B also shows that the product inspection apparatus 100 of the present invention further includes a manual operation component 14 and a display component 15 which are also disposed on the circuit board 10, wherein the manual operation component 14 can provide a user with manual operation for inspection, and the display component 15 is designed to display and reflect the inspection result of the inspection instruction for inspection in addition to the inspection result of the manual operation component 14.

In detail, the manual operating component 14 can be designed as a switch 140 capable of being toggled by a user, and the switch 140 can be composed of multiple sets of switches matching with the USB-

C transmission terminals

21, 24, so that the user can set whether to enable the second role of the USB-

C transmission terminals

21, 24 or the operation of the DRP function. Furthermore, the manual operating device 14 can be designed as a plurality of buttons 141-143 that can be pressed by the user, so that the user can control the operation of a plurality of different designated voltages. The display module 15 can use a plurality of LED elements, so that the user can know the result of manual operation or automatic detection by the color or flashing of the light.

The manual operating assembly 14 of the present invention can include two hardware configurations, i.e., the switch 140 and the buttons 141-143. The manual operation component 14 and the display component 15 are electrically connected to the processing unit 11, so as to inform the processing unit 11 of the result set or controlled by the user, or receive and display the information sent by the processing unit 11.

Referring to fig. 3, a second embodiment of the invention is illustrated, which is a schematic diagram of the product detecting system 1 of the invention for performing USB-C and Type-a detection applications. The main difference between the second embodiment and the first embodiment is that, as shown in fig. 3, the product inspection device 100 and the product inspection system 1 of the second embodiment perform inspection of a Type-a/C product 43 to be inspected. In other words, the Type-A/C product 43 to be tested has a Type-A transmission interface in addition to a USB-C (or Type-C) transmission interface. According to the present technology, there may be more than one input/output terminal designed for such devices, and such devices may be, for example, a power Docking Station (Docking Station), a USB Hub (Hub), a multi-terminal USB power adapter (USB) device, etc.

As mentioned in the first embodiment, the product inspection device 100 further has two Type-

A terminals

27, 28 for connecting and inspecting Type-A products to be inspected. Next, although not shown in fig. 3, it is understood that the product inspection apparatus 100 further has Multiplexers (MUXs) disposed on the circuit board 10 and corresponding to the Type-a

transmission terminals

27, 28, respectively, for selecting or switching the outputs of the Type-a

transmission terminals

27, 28. The multiplexers are electrically connected between the Type-

A transmission terminals

27 and 28 and the processing unit 11.

In this embodiment, the Type-a/C product 43 to be tested has four input/output terminals, three of which are USB-C Type, for example, three different operating powers of 15 watt (W), 18 watt (W), and 85 watt (W); and the other Type-a, the operating power may be 7.5 watts (W) (providing 5 volts (V)/1.5 amps (a) of operation). The Type-a

terminals

27, 28 can perform load or power detection in compliance with the USB battery charge for Battery (BC) specification, and particularly, the specification for the USB battery charge for Battery (BC) version 1.2.

In summary, the Type-a/C product 43 to be tested is connected to the first to third USB-C transmission terminals 21 to 23 of the product inspection apparatus 100 by three transmission lines, and is connected to the Type-a transmission terminal 27 of the product inspection apparatus 100 by another transmission line. Next, the power detecting device 60 of this embodiment is designed with a plurality of detecting channels, so that the power detecting device 60 can be connected to the detecting

connection terminals

31a, 31b, 32a, 32b, 33a, 33b, 37a, 37b corresponding to the first to third USB-C transmission terminals 21-23 and the Type-a transmission terminal 27 by eight transmission lines, respectively.

Therefore, when the power detection apparatus 60 detects the first role including power consumption (Sink) and the second role including power supply (Source) for the Type-a/C product 43 to be tested, the processing unit 11 can also detect the connection status of each Type-a

transmission terminal

27, 28. Next, in this embodiment, the power detecting instrument 60 can be designed to detect the operation of the corresponding input/output terminal of the Type-A/C product 43 under test on the Type-A transmission terminal 27 according to the Battery Charging (BC) specification. In detail, the power detecting device 60 can detect the voltage or current items by using the USB D +/D-switchable voltage division recognition technology, and the power detecting device 60 can be set to pump the Type-a/C product 43 to be tested at a current of 3 amperes (a), 1.5 amperes (a) or 4.25 amperes (a).

Although the embodiment takes a Type-A/Type product as an example to perform the USB-C and Type-A Type tests simultaneously, it should be understood that in other embodiments, a plurality of different devices may be used for testing, such as three USB-C products and one Type-A product. Referring to fig. 1B and 3, the proposed product inspection apparatus 100 can provide inspection of up to six USB-C products under test and two Type-a products under test. In addition, besides the specification of USB BC 1.2, the invention can also be applied to the standard of Apple 2.1A aiming at the detection application of Type-A Type.

In summary, the product inspection apparatus, the product inspection system and the product inspection method applied thereto according to the present invention can achieve the following technical improvements compared with the prior art: firstly, the invention can simultaneously detect a plurality of tested pieces (DUTs) or products to be detected (including USB-C and Type-A types), and can effectively reduce the detection time and reduce errors possibly caused by manual detection under the automatic detection design of program codes; secondly, the invention can provide the detection of a power consumption (Sink) role, a power supply (Source) role and a power consumption and power supply Dual Role (DRP), and provides a complete power supply detection platform for products which can support a USB-C PD communication protocol; thirdly, under the design of automatic control, the processing unit can carry out a large amount of operation control for many times in a circulating way by using a plurality of different specified voltages, which is the effect that the prior detection technology can be realized only by continuously plugging and unplugging the transmission line joint and the transmission end.

Accordingly, the present invention has been made to solve the above problems occurring in the prior art, and a primary object of the present invention is to provide a method for manufacturing a display device.

Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A product detection device is applied between a computer device, at least one power detection instrument and at least one USB-C product to be detected, the computer device carries a detection program, and the product detection device comprises:

a circuit board;

a processing unit arranged on the circuit board;

the USB-C transmission ends are arranged on the circuit board and used for providing connection for the at least one USB-C product to be tested; and

the detection connecting ends are arranged on the circuit board and used for providing connection for the at least one power supply detection instrument, and the detection connecting ends correspond to the USB-C transmission ends;

the detection program is used for sending a detection instruction, the USB-C transmission end connected with the USB-C product to be detected is set to be a first role or a second role, the processing unit controls the USB-C transmission end of the first role to circularly operate on a plurality of specified voltages, the USB-C transmission end of the second role is output with voltage, and the connected power detection instrument detects the operation situation of the USB-C product to be detected on the corresponding USB-C transmission end.

2. The product detecting device as claimed in claim 1, further applied to at least one Type-a product under test, and further having a plurality of Type-a terminals disposed on the circuit board for providing connection of the at least one Type-a product under test, wherein the detecting terminals correspond to the USB-C terminals and the Type-a terminals.

3. The product detecting device as claimed in claim 2, wherein the power detecting instrument is connected to detect the operation of the Type-A product under test at the corresponding Type-A transmitting terminal according to a battery usage charging specification.

4. The product detecting device as claimed in claim 1, further comprising:

a back end connection interface arranged on the circuit board for providing connection for the computer device;

a manual operation component, which is arranged on the circuit board and is used for providing manual operation for a user to carry out detection; and

and the display component is arranged on the circuit board and used for displaying and reflecting the detection result of the manual operation component or the detection instruction.

5. The product detecting device as claimed in claim 1, wherein the first role is set to enable the connected USB-C device under test to supply power to the circuit board, and the second role is set to enable the circuit board or an external power source to supply power to the connected USB-C device under test.

6. The product detecting device as claimed in claim 1, wherein the USB-C transmission terminals are provided for operation in the first role, and a part of the USB-C transmission terminals are also provided for operation in the second role.

7. The product detecting device as claimed in claim 1, wherein the computer device is connected to the at least one power detecting instrument in a signal manner such that the corresponding power detecting instrument can transmit a detection result of the USB-C product to be detected to the computer device.

8. The product inspection device as claimed in claim 1, wherein the inspection program issues the inspection command according to a USB-C power transmission protocol.

9. The product detection device of claim 1 wherein the specified voltage comprises 5 volts, 9 volts, 12 volts, 15 volts, or 20 volts.

10. A product detection system is applied to at least one USB-C product to be detected, and comprises:

a computer device loaded with a detection program;

at least one power source detection instrument; and

a product detection device; wherein the product detection device comprises:

a circuit board;

a processing unit arranged on the circuit board;

11. A product detection method is applied to a product detection system and at least one USB-C product to be detected, the system comprises a computer device, at least one power supply detection instrument and a product detection device, the computer device carries a detection program, the product detection device comprises a processing unit, a plurality of USB-C transmission ends and a plurality of detection connection ends, the detection connection ends correspond to the USB-C transmission ends, and the method comprises the following steps:

connecting the at least one USB-C product to be detected to the USB-C transmission end, and connecting the at least one power supply detection instrument to the detection connection end;

sending out a detection instruction by the detection program;

checking, by the processing unit, a connection status of each USB-C transmission terminal;

setting the USB-C transmission end connected with the USB-C product to be tested as a first role or a second role;

the processing unit controls the USB-C transmission end of the first role to circularly run on a plurality of specified voltages and outputs voltage to the USB-C transmission end of the second role; and

and detecting the running condition of the USB-C product to be detected on the corresponding USB-C transmission end by the connected power supply detecting instrument.

12. The product inspection method of claim 11, further applied to at least one Type-a product under inspection, the product inspection apparatus further having a plurality of Type-a transmission terminals, and the method further comprising the steps of:

connecting the at least one Type-A product to be detected to the Type-A transmission end, and connecting the at least one power supply detection instrument to the detection connection end;

wherein, the detection connecting end corresponds to the USB-C transmission end and the Type-A transmission end.

13. The product testing method of claim 12, further comprising the steps of:

checking, by the processing unit, a connection status of each Type-a transmission terminal; and

and detecting the operation condition of the Type-A product to be detected on the corresponding Type-A transmission terminal by the connected power supply detecting instrument according to a battery use charging specification.

14. The product inspection method as claimed in claim 11, wherein the product inspection apparatus further comprises a back connection interface, a manual operation component and a display component, the back connection interface is used for connecting the computer apparatus, the manual operation component is used for providing manual operation for a user to perform inspection, and the display component is used for displaying and reflecting the inspection result of the manual operation component or the inspection instruction.

15. The product inspection method as claimed in claim 11, wherein the first role is set to enable the connected USB-C device under test to power a circuit board, and the second role is set to enable the circuit board or an external power supply to power the connected USB-C device under test.

16. The product detecting method as claimed in claim 11, wherein the USB-C transmission terminals are provided for operation of the first role, and part of the USB-C transmission terminals are provided for operation of the second role.

17. The product testing method of claim 11, further comprising the steps of:

connecting the computer device signal to the at least one power detecting instrument; and

the corresponding power detecting instrument transmits the detection result of the USB-C product to be detected to the computer device.

18. The product detection method as claimed in claim 11, wherein the detection program issues the detection command according to a USB-C power transmission protocol.

19. The product detection method of claim 11, wherein the specified voltage comprises 5 volts, 9 volts, 12 volts, 15 volts, or 20 volts.

20. The product inspection method of claim 11, wherein the method is implemented by configuring the processing unit as firmware or storing a running program code in a flash memory electrically connected to the processing unit.