CN102087626B - Automatic test system and automatic test method thereof - Google Patents

Abstract

The invention provides an automatic test system and an automatic test method thereof. The automatic test system comprises a computer and a test device for testing the universal serial bus device. The automatic test system judges whether the universal serial bus device is completely configured with the computer by the method of the invention, and starts to test the universal serial bus device when the configuration is completed. The invention can automatically determine whether to start testing the universal serial bus device without depending on manpower, thereby improving the working efficiency.

Description

Automatic test system and its automatic test method

technical field

The invention relates to an automatic test system and method, in particular to an automatic test system and an automatic test method for automatically testing a universal serial bus device.

Background technique

Universal Serial Bus (USB) devices are used in many fields due to their plug-and-play functionality, and the more common ones are USB audio-visual playback devices, USB storage devices, USB mice, and USB keyboards. However, the USB device must be tested during the manufacturing process of the USB device or when the manufacturing is completed, so as to ensure that each function of the USB device can operate normally.

Taking a USB keyboard as an example, the simplest keyboard test is to connect the USB keyboard and a computer, and then a tester presses each button, and observes whether the button function is executed after pressing the button, so as to judge whether the button is normal. However, testing by manpower is not only slow and costly, but also the testers may feel tired due to long-time testing, so it is easy to touch the button by mistake. In order to solve this situation, a keyboard automatic testing device is introduced on the market to automatically test the keyboard, and its operation is as described in the Taiwan Patent No. 00325905 announcement, without further explanation.

Before testing the USB device, the USB device must be connected to the computer or the test device, and during the connection process, a device change (Device change) message will be generated. At this time, the USB device will transmit the USB protocol description to the computer, so that the computer Identify the function of the USB device by reading the USB protocol description. These USB protocol descriptions are described as Descriptors, and the Descriptors that constitute a USB device include Device Descriptor, Configuration Descriptor ( Configuration Descriptor), Interface Descriptor, Endpoint Descriptor. In addition, some USB devices also include string descriptors (String Descriptor), group descriptors (Class Descriptor), and report descriptors (Report Descriptor), etc. These descriptors can be increased or decreased according to the requirements of the USB device. After receiving these descriptors, the computer will store the descriptors of the USB device in a device registration information, so that the USB device can be detected and identified through the device registration information when the USB device is connected to the computer again in the future. The USB device and complete the configuration of the USB device (Configure).

Typically, the computer's operating system is Microsoft Windows. When a USB device is connected to a computer or a test device and transmits descriptors, the Windows operating system of the computer will detect all USB ports on the computer, so that the descriptors of the USB device will be repeatedly detected by the computer, so it is necessary to wait for the computer to respond to all The configuration of the USB device for automatic testing can only be completed after the detection of the USB port of the device is completed. Although the computer can detect all USB ports, it cannot determine whether the configuration of the USB device is complete, so the computer cannot know when to start the automatic test, so it is still necessary to arrange manpower to determine whether the configuration of the USB device is complete and start the automatic test. Test fixtures for automatic testing. That is to say, the automatic test equipment must still rely on manpower to carry out the test.

Contents of the invention

The technical problem to be solved by the present invention is to provide an automatic test system and an automatic test method that can automatically determine whether to start testing a Universal Serial Bus device, and can be performed without manpower. Automatic testing work, high work efficiency.

The technical solution adopted by the present invention to solve the technical problem is to provide an automatic test system for automatically testing a Universal Serial Bus device, the automatic test system includes a computer, a test device, a connection management program and an automatic test program; The testing device is connected to the computer and the USB device for testing the USB device, wherein when the USB device is connected to the testing device, the USB device generates a plurality of Descriptor and transmit the plurality of descriptors to the computer; the connection management program is installed in the computer to determine whether the target descriptor in the plurality of descriptors is transmitted to the computer; wherein when the target descriptor is transmitted to the computer, and the connection management program detects that the target descriptor is transmitted to the computer again within a waiting time, the connection management program resets the waiting time to zero and recalculates the waiting time; when the target when the descriptor is transmitted to the computer, and the connection management program does not detect that the target descriptor is transmitted to the computer again within the waiting time, an activation signal is output; and an automatic test program is installed in the computer, It is used for starting the test device according to the start signal to perform automatic test on the universal serial bus device.

The connection management program also includes a timer for calculating the waiting time.

After the connection management program recalculates the waiting time, when the connection management program detects that the target descriptor is transmitted to the computer again within the recalculated waiting time, the connection management program returns the waiting time to zero and recalculate the waiting time; when the target descriptor is transmitted to the computer again, and the connection management program does not detect that the target descriptor is transmitted to the computer within the recalculated waiting time, output the start signal.

The target descriptor is a device descriptor (Device Descriptor).

The device descriptor includes a product identification code (Product ID, PID) and a vendor identification code (VendorID, VID).

Optionally, the target descriptor includes a device descriptor, an interface descriptor (Interface Descriptor) and a report descriptor (Report Descriptor).

The device description element also includes a product identification code and a manufacturer identification code.

The universal serial bus device is a device such as a mouse with a USB interface or a keyboard with a USB interface.

The present invention also provides an automatic testing method for judging whether the configuration of the Universal Serial Bus device and the computer is completed, and the method includes the following steps:

S1: Receive multiple descriptors generated by the USB device;

S2: Judging whether the target descriptor in the plurality of descriptors is received; wherein when the target descriptor is received and the target descriptor is received again within a waiting time after the target descriptor is received, the The waiting time is reset to zero and the waiting time is recalculated; and when the target descriptor is received and the target descriptor is not received again within the waiting time after the target descriptor is received, it is determined that the Universal Serial Bus device And the computer configuration is complete.

After recalculating the waiting time, when the target descriptor is received again within the recalculated waiting time, reset the waiting time to zero and recalculate the waiting time; and when the target descriptor is received within the recalculated waiting time If it is not received again within the waiting time, it is determined that the configuration of the USB device and the computer is completed.

The target descriptor is a device descriptor.

The device descriptor includes a product identification code and a manufacturer identification code.

Optionally, the target descriptor further includes a device descriptor, an interface descriptor, and a report descriptor.

The device description element also includes a product identification code and a manufacturer identification code.

The universal serial bus device is a device such as a mouse with a USB interface or a keyboard with a USB interface.

The automatic test system and the automatic test method thereof of the present invention judge whether there are target descriptors that should be transmitted but are not transmitted by detecting the target descriptors within the waiting time, so as to know the universal Whether the configuration of the serial bus device and the computer is completed, and the follow-up work is carried out. The automatic test system and the automatic test method of the present invention are used to judge whether the configuration of the universal serial bus device and the computer is completed, which can improve the defects of the prior art and realize the automatic test work without relying on manpower to improve the work efficiency.

Description of drawings

FIG. 1 is a block flow chart of a preferred embodiment of the automatic testing method of the present invention.

Fig. 2 is a schematic structural diagram of a preferred embodiment of the automatic testing system of the present invention.

Detailed ways

In order to ensure that the computer can know when the automatic test should be started, the present invention provides an automatic test method for judging whether the universal serial bus device and the computer are configured. Please refer to FIG. 1, which is a comparison of the automatic test method of the present invention. Block flow diagram of the preferred embodiment. The method includes the following step S1: connecting a testing device and a computer, and connecting a USB device and the testing device to establish a connection between the USB device and the computer. Step S2: The USB device transmits a plurality of descriptors to the computer. Step S3: Determine whether an object descriptor is received from the USB device. Step S4: Start a timer, and judge whether the target descriptor is received again within a waiting time. Step S5: Reset the waiting time to zero, and recalculate the waiting time. Step S6: Determine that the configuration of the USB device and the computer is completed. And step S7: performing an automatic test of the USB device.

It should be noted that when performing step S3, if the target descriptor is not received, repeat step S3; and if the target descriptor is received, then proceed to step S4. When step S4 is performed, if the target descriptor is received again within the waiting time, then step S5 is performed; if the target descriptor is not received again within the waiting time, then step S6 is performed. After step S5 is completed, step S4 is performed again.

Next, a complete automatic test system is used to illustrate the method of judging whether the configuration of the USB device and the computer is completed. Please refer to FIG. 2 , which is a schematic structural diagram of a preferred embodiment of the automatic testing system of the present invention. Automatic test system 1 is used for carrying out automatic test to a universal serial bus device 12, and automatic test system 1 comprises a computer 10 and a test device 11, and test device 11 is connected with computer 10 and universal serial bus device 12, in order to The USB device 12 performs the test, and the structure and operation of the test device 11 are as described in Taiwan Patent No. 00325905 disclosed in the prior art, and will not be repeated here.

The computer 10 has a connection management program 101 and an automatic test program 102 for performing automatic tests, and the connection management program 101 has a timer 1011 . The USB device 12 is a device connected through a Universal Serial Bus (USB) interface. In this preferred embodiment, the USB device 12 is a USB keyboard.

As described in the prior art, during the connection process of connecting the USB keyboard 12 to the computer 10 or the test device 11, the USB keyboard 12 will transmit multiple descriptors D to the computer 10, so that the computer 10 can read the multiple descriptors D And the function of its USB keyboard 12 is identified, and a plurality of descriptors D are stored in the log editing program in the computer 10 . In order to ensure that the configuration of the USB keyboard 12 and the computer 10 is completed, the last set of descriptors among the plurality of descriptors D is set as a target descriptor. The present invention uses the target descriptor as a criterion for judging whether the configuration of the USB keyboard 12 and the computer 10 is completed, and the connection management program 101 is used to judge whether the target descriptor among the multiple descriptors D is transmitted to the computer 10 .

The target descriptor can be a device descriptor, and the device descriptor includes a product identification code (ProductID, PID) and a vendor identification code (Vendor ID, VID). Or the object descriptor may include a device descriptor, an interface descriptor and a report descriptor. In this preferred embodiment, the target descriptor may include a device descriptor, an interface descriptor, and a report descriptor, and the target descriptor is stored in the login editing program of the Windows operating system of the computer, and in this preferred embodiment The format of the target descriptor is Vid_1234Pid_5678MI_05Col_09.

When the automatic test system 1 of the present invention starts running, connect the test device 11 and the computer 10, and connect the USB keyboard 12 and the test device 11 to establish the connection between the USB keyboard 12 and the computer 10 (step S1). Next, the USB keyboard 12 transmits a plurality of descriptors D to the computer 10 (step S2), at this time, the connection management program 101 of the computer 10 judges whether the target descriptor D from the USB keyboard 12 is received (step S3), wherein when the connection When the hypervisor 101 detects that the computer 10 has not received the target descriptor, it continues to receive the target descriptor until the target descriptor is received. When the connection management program 101 detects that the computer 10 has received the target descriptor, it starts the timer 1011 and determines whether the computer 10 receives the target descriptor again within the waiting time (step S4).

In step S4, when the connection management program 101 detects that the computer 10 receives the target descriptor again within the waiting time, it resets the waiting time to zero and recalculates the waiting time (step S5) to perform step S4 again. And when the connection management program 101 detects that the computer 10 does not receive the target descriptor again within the waiting time, it determines that the configuration of the USB keyboard 12 and the computer is completed (step S6) and outputs an activation signal E. Next, the automatic test program 102 activates the test device 11 according to the start signal E, so that the test device 11 performs an automatic test on the USB keyboard 12 (step S7 ). As for the running process of the automatic test, no further explanation will be given.

It should be noted that the present invention sets the timer 1011 to calculate the waiting time, which is mainly used to detect whether there is still a descriptor D to be transmitted repeatedly. In this embodiment, the target descriptor is used as the representative of all descriptors D If it is detected that the target descriptor is transmitted within the waiting time, it means that the computer 10 has not yet completed the detection of all USB ports. On the contrary, if the target descriptor is not received within the waiting time, it means that the USB keyboard 12 and the computer 10 has been configured so that subsequent automatic testing can be performed. Therefore, the setting of the waiting time is very important, if the waiting time is set too short, the target descriptor that should be detected will be ignored, that is to say, the connection management program 101 will therefore make a wrong judgment, resulting in subsequent The auto-test work fails, so it is necessary to test different USB devices and obtain the setting of the waiting time through repeated experiments.

According to the above-mentioned preferred embodiment, the automatic test system and method of the present invention judge whether there are still target descriptors that should be transmitted by detecting the target descriptors within the waiting time, but the target descriptors that have not been transmitted, by This is to know whether the configuration of the USB device and the computer is completed, and to carry out follow-up work. Therefore, the automatic test system and method of the present invention are used to judge whether the configuration of the USB device and the computer is completed, which can indeed improve the defects of the prior art and realize the automatic test work without manpower.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the claims of the present invention. Therefore, all other equivalent changes or modifications that do not deviate from the spirit disclosed in the present invention should be included in this disclosure. within the scope of the claimed invention.

Claims (15)

1. an automatic test system, in order to carry out automatic test to universal serial bus device, it is characterized in that: this automatic test system comprises: computer; A testing device, connected to the computer and the USB device, for testing the USB device, wherein when the USB device is connected to the testing device, the USB device generates multiple descriptors and transfer the plurality of descriptors to the computer; A connection management program installed in the computer to determine whether a target descriptor among the plurality of descriptors is transmitted to the computer; wherein when the target descriptor is transmitted to the computer, and the connection management program waits for When it is detected that the target descriptor is transmitted to the computer again, the connection management program resets the waiting time to zero and recalculates the waiting time; when the target descriptor is transmitted to the computer, and the connection management program outputting an activation signal when the target descriptor is not detected to be transmitted to the computer again within the waiting time; and The automatic test program is installed in the computer, and is used to start the test device according to the start signal to perform automatic test on the universal serial bus device. 2. The automatic test system as claimed in claim 1, wherein the connection management program further comprises a timer for calculating the waiting time. 3. The automatic test system according to claim 1, wherein after the connection management program recalculates the waiting time, when the connection management program detects that the target descriptor is recalculated within the recalculated waiting time When transmitting to the computer, the connection management program resets the waiting time to zero again and recalculates the waiting time; when the target descriptor is transmitted to the computer again, and the connection management program fails to When it is detected that the target descriptor is transmitted to the computer, the activation signal is output. 4. The automatic test system as claimed in claim 1, wherein the target descriptor is a device descriptor. 5. The automatic test system as claimed in claim 4, wherein the device descriptor includes a product identification code and a manufacturer identification code. 6. The automatic test system according to claim 1, wherein the target descriptor includes a device descriptor, an interface descriptor and a report descriptor. 7. The automatic test system as claimed in claim 6, wherein the device descriptor includes a product identification code and a manufacturer identification code. 8. The automatic test system as claimed in claim 1, wherein the USB device is a USB interface mouse or a USB interface keyboard. 9. An automatic test method, in order to judge whether the universal serial bus device and the computer have been configured, it is characterized in that: the method comprises: receiving a plurality of descriptors generated by the USB device; and judging whether the target descriptor in the plurality of descriptors is received; wherein when the target descriptor is received and the target descriptor is received again within a waiting time after the target descriptor is received, the waiting time Reset to zero and recalculate the waiting time; and when the target descriptor is received, and the target descriptor is not received again within the waiting time after the target descriptor is received, it is determined that the Universal Serial Bus device and the Computer configuration is complete. 10. The automatic testing method according to claim 9, wherein after recalculating the waiting time, when the target descriptor is received again within the recalculated waiting time, the waiting time is reset to zero and recalculate the waiting time; and when the target descriptor is not received again within the recalculated waiting time, it is determined that the configuration of the USB device and the computer is completed. 11. The automatic testing method according to claim 10, wherein the target descriptor is a device descriptor. 12. The automatic testing method according to claim 11, wherein the device descriptor includes a product identification code and a manufacturer identification code. 13. The automatic testing method according to claim 9, wherein the object descriptor includes a device descriptor, an interface descriptor and a report descriptor. 14. The automatic testing method according to claim 13, wherein the device descriptor includes a product identification code and a manufacturer identification code. 15. The automatic testing method according to claim 9, wherein the USB device is a USB interface mouse or a USB interface keyboard.

Images