CN104615524A - USB (universal serial bus) plug testing method for mobile terminal - Google Patents

Abstract

The invention discloses a USB plug-in test method for a mobile terminal, comprising the following steps: Step 1, hardware connection: the hardware includes a PC main controller, a pulse output controller, a relay, a USB, and testing equipment; the PC main controller uses It is used to send open/close instructions to the pulse output controller and receive test information from the test equipment at the same time; the pulse output controller is electrically connected to the control terminal of the relay; the output terminal of the relay is electrically connected to the four wires of the USB; the USB is electrically connected to the test equipment Connection; step 2, test link: divide the four USB lines into multiple modes in pairs, and each mode is equipped with an on/off command module and a test result module in the PC main controller; PC main control The device realizes the on/off of each mode through the pulse output controller and the relay in turn; the test equipment realizes the test of each mode, and sends the test result to the test result module.

Description

USB plug-in test method for mobile terminal

technical field

The invention relates to the technical field of mobile terminal testing, in particular to a USB plug-in test method for a mobile terminal.

Background technique

With the popularity of smart mobile terminals, users have higher and higher requirements for terminal equipment stability, performance and user experience, and the use of smart robots in the field of smart mobile terminal testing has also become popular. Compared with traditional manual testing and pure software automated testing, intelligent robot testing has significant advantages in terms of test accuracy, no software intervention, higher reliability, test consistency, and anthropomorphic simulation.

When using an intelligent robot to test a mobile terminal, it is necessary to obtain relevant data information and charging status of the terminal to complete subsequent accurate data analysis of the mobile phone. At present, in the mainstream intelligent robot test system, there are several ways to capture the charging state and data transmission of the measured object as follows:

1. Manually plug and unplug the USB;

2. Carry out line transformation on mobile terminals;

3. Mode switching requires manual modification of the on-off data line.

There are obvious defects in the above three technologies, as follows:

1. The manual plugging and unplugging modes are mixed and cannot be tested individually. Can only rely on software simulation testing. Data accuracy is low.

2. If you want to conduct a single test, you need to carry out physical intervention such as line modification on the mobile phone. Although the signal interference is solved, it also destroys the integrity of the mobile terminal. It is time-consuming and labor-intensive, requiring high professional skills

3. The manual modification is intensive and the test efficiency is low, and the signal transmission is not smooth and the data transmission is unstable. The test accuracy is extremely low.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high-efficiency, simple and convenient USB plug-in test method for mobile terminals.

The technical scheme that the present invention takes for solving the technical problem existing in known technology is:

A kind of USB plug-in test method that mobile terminal is used, above-mentioned USB comprises two power lines and two signal lines; It is characterized in that: comprise the following steps:

Step 1, hardware connection: the hardware includes a PC master controller, a pulse output controller, a relay, USB, and a test device; the PC master controller is used to send an on/off command to the pulse output controller, and simultaneously receive the test device The test information; the pulse output controller is electrically connected to the control terminal of the relay; the output terminal of the relay is electrically connected to the four wires of the USB; the USB is electrically connected to the test equipment;

Step 2. Test link: Divide the four USB lines into multiple modes in pairs. Each mode is equipped with an on/off command module corresponding to the mode in the PC main controller, and is used to receive The test result module of the test information of this mode; the PC main controller realizes the on/off of each mode through the pulse output controller and the relay in turn; the test equipment realizes the test of each mode and sends the test result to the test result module.

The advantages and positive effects of the present invention are: by adopting the above-mentioned technical scheme, the present invention controls the card, the relay and the PC main controller through the pulse output, in various USB modes (AC charging on-off, USB charging on-off, data transmission on-off) Switch freely among several modes). It has significantly improved the low efficiency and high strength problems caused by manual plugging or other methods of switching on and off, and effectively reduced the problems of high manual participation and high labor intensity when using manipulators to test mobile terminals. And the operation is convenient and fast, fool-like operation.

Description of drawings

Fig. 1 is a structural block diagram of the hardware part of the present invention;

Fig. 2 is a work flow chart of the present invention;

Fig. 3 is a schematic circuit diagram of the hardware part of the present invention.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Fig. 1, Fig. 2 and Fig. 3: a kind of USB plug-in test method that mobile terminal is used, the USB in this preferred embodiment comprises two power lines and two signal lines;

Step 1, hardware connection: the hardware includes a PC master controller, a pulse output controller, a relay, USB, and a test device; the PC master controller is used to send an on/off command to the pulse output controller, and simultaneously receive the test device The test information; the pulse output controller is electrically connected to the control terminal of the relay; the output terminal of the relay is electrically connected to the four wires of the USB; the USB is electrically connected to the test equipment;

Step 2. Test link: Divide the four USB lines into multiple modes in pairs. Each mode is equipped with an on/off command module corresponding to the mode in the PC main controller, and is used to receive The test result module of the test information of this mode; the PC main controller realizes the on/off of each mode through the pulse output controller and the relay in turn; the test equipment realizes the test of each mode and sends the test result to the test result module.

The working principle of the present invention is as follows: the four wires of the USB are separately switched on and off.

Through the relay, the 4 wires in the USB are switched on and off in pairs to realize the switching of different modes.

USB automatic on-off steps:

Test initialization (connect USB to the terminal under test)

Select test mode

The circuit operation of the two states of the main USB charging mode here is shown in Figure 3

In the USB charging mode, the PC main controller sends instructions to the pulse output controller, so that the corresponding output ports Out1 out2 out3 out4 are in a high level state (default low level off state) coils 1, 2, 3, 4 Conduction contacts 1, 2, 3 and 4 are closed and the USB interface is completely conducted with the main controller circuit. This mode simulates the traditional USB plugging and unplugging state, and similarly changes the high level of ports 2 and 3 (D+ D-) that control data transmission to low level. Coils 2 and 3 are de-energized, and contacts 2 and 3 are disconnected. Only 1 and 4 are left to conduct. Successfully switching to an individual USB charging state simulates a USB single charging state without other disturbances. This guarantees free conversion of modes.

The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (1)

1. a kind of USB plug-in test method that mobile terminal is used, above-mentioned USB comprises two power lines and two signal lines; It is characterized in that: comprise the steps: Step 1, hardware connection: the hardware includes a PC main controller, a pulse output controller, a relay, a USB, and a test device; the PC main controller is used to send an on/off command to the pulse output controller, and simultaneously receive the test device The test information; the pulse output controller is electrically connected to the control terminal of the relay; the output terminal of the relay is electrically connected to the four wires of the USB; the USB is electrically connected to the test equipment; Step 2. Test link: Divide the four USB lines into multiple modes in pairs. Each mode is equipped with an on/off command module corresponding to the mode in the PC main controller, and is used to receive The test result module of the test information of this mode; the PC main controller realizes the on/off of each mode through the pulse output controller and the relay in turn; the test equipment realizes the test of each mode and sends the test result to the test result module.