TWI422839B - System and method for testing gsm modules - Google Patents

Description

GSM module test system and method

The invention relates to a GSM (Global System of Mobile Communication) module testing system and method.

GSM (Global System of Mobile Communication) is the most widely used communication standard in mobile communications. It can support integrated services digital network (ISDN), packet switching networks, and Internet-related asynchronous and Synchronous data communication, G3 fax communication, etc. and voice communication.

GSM modules equipped in mobile phones usually require quality inspection before leaving the factory, including testing of the GSM module connection network. However, the existing testing of the GSM module often needs to be performed manually, while the manual test is difficult to accurately control the output voltage to the GSM module, and it is necessary to manually connect the GSM module and the network one by one to determine whether it can be normal operation. In particular, testing for a product often requires multiple cycles of testing to verify that the product functionality is working properly. In addition, manual testing is difficult to avoid human error and low test efficiency.

In view of the above, it is necessary to provide a GSM module test system and method, which can automatically realize power supply and power off of the GSM module by controlling the relay analog power supply key of the GSM module, and automatically complete the GSM mode. The test of the group and network connection function to determine whether the GSM module can operate normally.

A GSM module test system installed in a computer, the computer and power supply, relay, to be tested The GSM module and the charger are connected, wherein the system comprises: a power control device for controlling the opening and closing of the power source, and controlling the power source to output a voltage to the relay to enable the relay analog key function to turn on the power of the GSM module. a switch, thereby controlling the charger to provide power to the GSM module; a command sending module for generating a test command for causing the GSM module to start running and attempting to connect to the network, and transmitting the generated test command to the GSM module; The test module is configured to enable the GSM module to execute the test command, obtain an execution result, and determine, according to the execution result, whether the GSM module can be connected to the network after power-on to confirm whether the GSM module can operate normally.

A GSM module test method for testing whether a GSM module is normal by using a connection between a computer and a power source, a relay, a GSM module to be tested, and a charger, the method comprising the steps of: turning on a power source and controlling the power source to output a voltage to the relay; The relay analog button function turns on the power switch of the GSM module, so that the charger starts to supply power to the GSM module; generates a test command that causes the GSM module to start running and attempts to connect to the network; and sends the generated test command to the GSM module. And let the GSM module execute the test command; obtain the corresponding execution result; let the relay analog key function turn off the power switch of the GSM module, so that the charger stops supplying power to the GSM module; and judge GSM according to the execution result Whether the module can be connected to the network after power-on to confirm whether the GSM module can run normally to obtain test results.

Compared with the prior art, the GSM module testing system and method can automatically implement power supply and power off of the GSM module by controlling the power of the relay analogy to the GSM module, and automatically complete the pairing. Test the GSM module and network connection function to determine whether the GSM module can operate normally. The system and the method can effectively avoid human error, realize automatic control of the power supply status of the GSM module, and can automatically cycle and repeatedly test the GSM module by setting a loop test, thereby improving test efficiency and measurement accuracy. .

1‧‧‧ computer

10‧‧‧GSM Module Test System

100‧‧‧Power control unit

102‧‧‧Command Sending Module

104‧‧‧Test module

106‧‧‧Result output module

108‧‧‧Circuit test module

11‧‧‧Storage device

12‧‧‧ motherboard

120‧‧‧Chain

121‧‧‧ interface

2‧‧‧Power supply

3‧‧‧ Relay

4‧‧‧GSM module

5‧‧‧Charger

6‧‧‧GPIB line

7‧‧‧Power cord

8‧‧‧Data line

1 is a hardware architecture diagram of a preferred embodiment of a GSM module test system of the present invention.

2 is a functional module diagram of the GSM module test system of the present invention.

3 is a flow chart of test data of a preferred embodiment of the GSM module test system of the present invention.

4 is a flow chart of a preferred embodiment of the GSM module testing method of the present invention.

FIG. 1 is a hardware architecture diagram of a preferred embodiment of a GSM (Global System of Mobile Communication) module test system according to the present invention. The hardware architecture of the preferred embodiment mainly includes a computer 1, a power supply 2, a relay 3, a GSM module 4 to be tested, and a charger 5. The computer 1 includes a GSM module test system (hereinafter referred to as "the present system") 10, a storage device 11, and a motherboard 12. The GSM module test system 10 runs in the computer 1 and is used to detect whether the GSM module 4 can be normally connected to the network after power-on.

The computer 1 also provides an interactive operation interface for the tester to view and control the test process, for example, setting a plurality of buttons in the operation interface for the tester to perform related operations, and the computer 1 recognizes the operation and commands the computer according to the operation. The software and hardware in 1 are coordinated and executed, and the corresponding execution results are fed back to the tester.

The storage device 11 is a readable and writable storage medium, such as a computer hard disk or a flash memory. In the preferred embodiment, the storage device 11 can be used to store the data sent by the system software, the received data transmitted by the GSM module 4 and the power source 2 to the motherboard 12, and the test according to various materials. Results, etc.

The motherboard 12 provides a plurality of electronic device interfaces, so that the electronic device can be connected to the motherboard 12 through the interface, for example, providing a central processing unit (CPU) interface so that the CPU can perform with the motherboard 12. The connection provides a memory interface so that the memory can be connected to the motherboard 12.

The motherboard 12 further includes a serial port 120 and an interface 121 for transmitting commands and data to and from an external device. In the preferred embodiment, the serial port 120 is an RS-232C serial port standard, for example, com1, com2, etc., and the interface 121 is a GPIB (General-Purpose Interface Bus) interface. The GPIB interface is often used for the connection between the printer and the computer. In addition, the user can connect the computer with one or more instruments through the GPIB line and the GPIB interface to form an instrument system, so that the test and measurement work can be obtained. More accurate information.

The GSM module 4 is connected to the serial port 120 of the motherboard 12 via a data line 8 for receiving relevant commands and transmitting data from the computer 1. The related command may include: instructing the GSM module 4 to start connecting to the network, and the like.

The power source 2 is connected to the interface 121 of the motherboard 12 via the GPIB line 6 to receive related commands from the computer 1, for example, a command to turn on or off the power. The power source 2 is also connected to the relay 3 via a power line 7 for supplying power to the relay 3. The GSM module test system 10 causes the relay 3 to be turned on and off than the power switch of the button control GSM module 4, for example, the button is a "Power" button.

The relay 3 is usually an electric gate that controls the switching direction by electromagnetic force. When the power source 2 is not supplying power to the relay 3, the computer 1, the power source 2, the relay 3, the GSM module 4, and the charger 5 shown in FIG. 1 form an open circuit, and when the power source 2 starts supplying power to the relay 3, Then, after the coil of the relay 3 is energized, the soft iron core in the center of the relay 3 is magnetically generated, thereby sucking the lateral swing arm of the relay 3 to force the gate contacts to be connected, so that the two contacts form a passage, that is, the computer 1 The power supply 2, the relay 3, the GSM module 4, and the charger 5 form a closed circuit.

The charger 5 is connected to the GSM module 4 via a power line 7 for supplying power to the GSM module 4 after the power switch is turned on.

As shown in FIG. 2, it is a functional module diagram of the GSM module test system of the present invention. The GSM module test system The system 10 is installed in the computer 1 and mainly includes four functional modules, namely: a power control device 100, a command transmitting module 102, a test module 104, and a result output module 106.

The power control device 100 is configured to control the opening and closing of the power source 2 and the magnitude of the output voltage of the control power source 2, which can be realized by a preset on/off time, a value of the output voltage, or a voltage range. Automatic control of the power supply 2. During the test, the magnitude of the output voltage of the power source 2 and the on/off time can be modified by the power control device 100 according to the test requirements.

For example, if the test is to start at 9:00 am and the power supply 2 outputs a voltage of 5 volts to the relay 3 during the test, and when it reaches 9:10, the power supply 2 stops the output voltage and turns itself off. In the above example, the output voltage of the power source 2 is 5 volts, the power-on time of the power supply 2 is 9:00 AM, and the turn-off time is 9:10 AM.

The power control device 100 is further configured to control the power source 2 to output a voltage to the relay 3 to enable the relay 3 to turn on the power switch of the GSM module 4 than the button function, thereby controlling the charger 5 to supply power to the GSM module 4. The power control device 100 causes the power supply 2 to supply power to the relay 3, so that the computer 1, the power supply 2, the relay 3, the GSM module 4, and the charger 5 form a path, and the charger 5 starts to supply power to the GSM module 4, where In the process, the relay 3 functions as a power on/off button (Power On/Off button), such as the Power button on the host computer. After the Power button is pressed, the devices in the host computer can be powered on and started. In the preferred embodiment, the relay 3 is used to analogize the power switch button of the GSM module 4, thereby controlling the charger 5 to supply power to the GSM module 4.

The command sending module 102 is configured to generate a corresponding test command according to the test requirement after the GSM module 4 is powered on, and send the generated test command to the GSM module 4 so that the GSM module 4 can perform corresponding operations according to the test command. Obtain the corresponding execution results and other information. For example, the generated test command is to cause the GSM module 4 to attempt to connect to the network after power up. In the preferred embodiment, the GSM module 4 is connected. Connected to the GSM network.

In the preferred embodiment, the test command sent is an AT command, which is a built-in command in the ^Windows® operating system, which can be used to schedule, manage tasks, process work transactions, and the like. The AT command specifies the time and date, and runs commands and programs on the specified computer. For example, to set the task of timed shutdown, you can enter the AT command ''at 21:00 ShutDown-S-T30' in the "Start → Run" of the Windows ^® operating system. After the command runs, it will arrive at 21:00 in the evening. The computer will appear in the "System Shutdown" dialog box to prompt the user, and the default 30 seconds delay automatically shut down, if the user does not perform other operations within the default delay, the computer will automatically shut down.

In other embodiments, a user can send AT commands by operating system windows ^® comes with Hyper Terminal (HyperTerminal) software to the GSM module 4. The Hyper Terminal is a serial communication software.

The test module 104 is configured to enable the GSM module 4 to execute the AT command after the GSM module 4 receives the AT command, and obtain an execution result. For example, the test module 104 causes the GSM module 4 to perform corresponding operations according to the received AT command, including starting operation and attempting to connect to the network, and then the test module 104 obtains the execution result.

The test module 104 is further configured to determine, according to the execution result, whether the GSM module 4 can be connected to the network after power-on to confirm whether the GSM module 4 can operate normally, thereby obtaining a test result. If the GSM module 4 can be connected to the network after being powered on, the test module 104 determines that the GSM module 4 can operate normally. Otherwise, the test module 104 can determine that the GSM module 4 is not able to operate normally.

The test result includes: determining the information of the normal operation of the GSM module 4, and determining that the GSM module 4 is incapable of running normally. The information that cannot be normally operated includes: unable to connect to the network after being powered on.

After the test module 104 obtains the execution result of the test command, the power control device 100 commands the power supply 2 to stop supplying power to the relay 3, so that the relay 3 is compared with the power switch button (Power Off button) of the GSM module 4, and the computer 1 The power supply 2, the relay 3, the GSM module 4, and the charger 5 form an open circuit, and the charger 5 stops supplying power to the GSM module 4.

The result output module 106 is configured to generate a test report according to the test result and various test materials in the test process, and output the test result, the test data, the test report, and the like to the storage device 11 for the user. For reference. The test data includes: the time when the power source 2 is turned on/off during the test, the magnitude of the output voltage, and the like.

When the test module 104 determines that the GSM module 4 is not working properly, the result output module 106 can also be used to transmit the abnormal cause to the tester by mail, information or other means, so that the tester can use the GSM module. Group 4 checks and determines why it is not working properly.

In addition, the GSM module test system 10 further includes a loop test module 108, and the loop test module 108 is configured to perform cyclic test on the GSM module 4, and provides a setting of the number of loops, thereby according to the set loop. The number of times automatically loops the GSM module 4 to obtain the corresponding test results. Moreover, the loop test module 108 can also preset the default number of loop tests.

The loop test module 108 recognizes whether the "cycle test" is activated by providing a "loop test" button on the operation interface, and provides a "cycle count setting" field to identify the number of loop tests. If the "cycle test" is started, the loop test module 108 will notify the corresponding module to perform a series of related operations, thereby looping, repeatedly testing the GSM module 4 and obtaining each test data to achieve a more accurate test. effect. If the field of "Number of Cycles Setting" is empty, the cycle test can be automatically performed according to the preset number of times set in advance, and the predetermined number of times can be modified.

In the loop test, the test module 104 obtains each test data, and the result output module 106 records and finally outputs, the tester can judge the final test result based on the output test data, thereby confirming whether the GSM module 4 can operate normally after being powered on. For example, if the number of cycles is set to 5 times, 5 sets of test data are obtained. If one set of test data indicates that the GSM module 4 is abnormal, it can be confirmed that the GSM module 4 is abnormal and reports abnormal information. For another example, if the number of cycles is set to 100 times, 100 sets of test data are obtained, and if the normal ratio is greater than 95%, the GSM module can be confirmed to be normal.

As shown in FIG. 3, it is a test data flow diagram of a preferred embodiment of the GSM module test system of the present invention, which is used to describe the flow of data during the test. First, the GSM module test system 10 in the computer 1 controls the power source 2 to be turned on, so that the power source 2 starts to output a voltage to the relay 3. When the coil in the relay 3 is energized to form a path, the charger 5 starts to supply power to the GSM module 4. The GSM module test system 10 in the computer 1 issues a test command to the GSM module 4 after the path is formed, causes the GSM module 4 to perform corresponding operations, and transmits the execution result back to the computer 1 for analysis and storage. After the computer 1 acquires the execution result, the power source 2 is turned off to stop outputting the voltage to the relay 3.

4 is a flow chart of a preferred embodiment of the GSM module testing method of the present invention. First, in step S2, the power control device 100 sets a specific value of the output voltage of the power source 2 and a voltage range, a turn-on time and a turn-off time of the power source 2, and the loop test module 108 sets the number of loop tests.

In step S4, the tester connects the GSM module 4 to the serial port 埠120 on the motherboard 12 via the data line 8, and connects the power source 2 to the interface 121 on the motherboard 12 via the GPIB line 6, and the power line 7 is connected. The power source 2, the relay 3, the GSM module 4, and the charger 5 are connected.

In step S6, the power source control device 100 turns on the power source 2, and outputs a voltage to the relay 3 in accordance with the value of the set output voltage.

In step S8, the power control device 100 causes the relay 3 to turn on the power of the GSM module 4 than the button function. When the computer 1, the power source 2, the relay 3, the GSM module 4, and the charger 5 form a path, the charger 5 starts to supply power to the GSM module 4.

In step S10, the command sending module 102 generates a corresponding test command according to the test requirement, and sends the generated test command to the GSM module 4, and the test module 104 causes the GSM module 4 to perform corresponding operations according to the AT command. This includes starting the operation and trying to connect to the network, and then getting the execution results. In the preferred embodiment, the test command sent is an AT command.

In step S12, the test module 104 determines, according to the execution result, whether the GSM module 4 can be connected to the network after being powered on.

If it is determined that the GSM module 4 can be connected to the network after being powered on, the test module 104 acquires the test data in step S14, and records the test data by the result output module 106, and executes step S18.

If it is determined that the GSM module 4 cannot be connected to the network after being powered on, in step S16, the result output module 106 records the test data and reports the abnormal information. The test data includes abnormal information and abnormalities of the GSM module 4, for example, it is not possible to connect to the network after being powered on.

In step S18, the power control device 100 causes the relay 3 to turn off the power switch of the GSM module 4 by the button function, so that the computer 1, the power source 2, the relay 3, the GSM module 4, and the charger 5 form an open circuit, and the charger 5 stops. The GSM module 4 is powered.

In step S20, the loop test module 108 determines whether the loop test is completed according to the set number of loops. If the loop test has not been completed, return to step S8 for the next round of testing.

If the loop test is completed, in step S22, the result output module 106 outputs all the recorded test data, and the test module 104 determines whether the GSM module 4 can operate normally according to the output test data and obtains the test result, and outputs the result. The module 106 generates a test report according to the test result and various test materials in the test process, and the test result, test data, test report The content is output to the storage device 11, and the flow is ended. The test data includes: the time when the power source 2 is turned on/off during the test, the magnitude of the output voltage, and the number of times of the loop test.

For example, if the number of loops is set to 5, the test module 104 obtains 5 sets of test data. If one set of test data indicates that the GSM module 2 is abnormal, it can confirm that the GSM module 2 is abnormal and report abnormal information. . For another example, if the number of cycles is set to 100 times, the test module 104 obtains 100 sets of test data, and if the normal ratio is greater than 95%, the GSM module can be confirmed to be normal.

Users can choose whether to perform cyclic test on GSM module 2 or set the number of loop tests according to the test requirements.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and equivalent modifications or variations made by those skilled in the art in accordance with the spirit of the present invention are It should be covered by the following patent application.

10‧‧‧GSM Module Test System

100‧‧‧Power control unit

102‧‧‧Command Sending Module

104‧‧‧Test module

106‧‧‧Result output module

108‧‧‧Circuit test module

Claims (12)

A GSM module test system is installed in a computer, and the computer is connected with a power source, a relay, a GSM module to be tested, and a charger. The system includes: a power control device for setting a power on/off time, and Outputting a range of voltages to the relay, controlling the opening and closing of the power source, and controlling the power supply to output voltage to the relay to enable the relay analog key function to turn on the power switch of the GSM module, thereby controlling the charger to supply power to the GSM module; The sending module is configured to generate a test command for starting the GSM module and attempting to connect to the network after being powered on, and sending the generated test command to the GSM module; and the test module for executing the GSM module The test command acquires the execution result and determines whether the GSM module can be connected to the network after power-on according to the execution result to confirm whether the GSM module can operate normally. For example, in the GSM module test system described in claim 1, the system further includes a result output module, configured to generate a test report according to the test result and various test materials in the test process, and store the test result, Test data and test reports. For example, the GSM module test system described in claim 2, the system further includes a loop test module for setting the number of cycles to perform cyclic test on the GSM module and obtain corresponding test results. For example, in the GSM module test system described in claim 1, the result output module is further configured to transmit the abnormal cause to the tester by mail, information or other means. For example, in the GSM module test system described in claim 1, the command sent by the command sending module is an AT command. A GSM module test method using a computer and a power supply, a relay, a GSM module to be tested, and The connection of the charger is tested whether the GSM module is normal. The method includes the following steps: setting the power on and off time, and outputting the voltage range to the relay; turning on the power and controlling the power output to the relay; and turning the analog analog button function on The power switch of the GSM module enables the charger to start supplying power to the GSM module; generates a test command that causes the GSM module to start running and attempts to connect to the network after power-on; sends the generated test command to the GSM module, and Let the GSM module execute the test command; obtain the corresponding execution result; let the relay analog key function turn off the power switch of the GSM module, so that the charger stops supplying power to the GSM module; and judge the GSM module according to the execution result Whether it is possible to connect to the network after power-on to confirm whether the GSM module can operate normally to obtain test results. For example, in the GSM module test method described in claim 6, the method further includes the following steps: generating a test report according to the test result and various test data in the test process, and storing the test result, test data, and test report. For example, in the GSM module test method described in claim 6, the method further includes the following steps: transmitting the abnormal cause to the tester by mail, information or other means before the power-on step. For example, in the GSM module test method described in claim 6, the test result includes: if the GSM module can be connected to the network after being powered on, it is determined that the GSM module can operate normally; and if the GSM module If the network cannot be connected after power-on, it is judged that the GSM module cannot operate normally. A GSM module test method using a computer and a power supply, a relay, a GSM module to be tested, and The connection of the charger is tested whether the GSM module is normal. The method includes the following steps: (a) setting a loop test for the GSM module and setting the number of cycles; (b) setting the power on and off time, and outputting the voltage to the relay Range, turn on the power and control the power supply to the relay output voltage; (c) Let the relay analog key function turn on the power switch of the GSM module, so that the charger starts to supply power to the GSM module; (d) generate the GSM module Start the test and try to connect to the network test command after power-on; (e) send the generated test command to the GSM module, and let the GSM module execute the test command; (f) obtain the corresponding execution result; (g) The relay analog key function turns off the power switch of the GSM module, so that the charger stops supplying power to the GSM module; (h) judges whether the GSM module can be connected to the network after power-on according to the execution result to confirm the GSM mode. Whether the group can run normally to obtain the test result; and (i) automatically repeat the process of steps (c) to (h) according to the set number of cycles to realize the cyclic test of the GSM module and obtain the phase Test results. The method for testing a GSM module according to claim 10, the method further comprising the steps of: generating a test report according to the test result and various test data in the test process, and storing the test result, test data, and test report. For example, in the GSM module test method described in claim 10, the method further includes the following steps before the power-on step: transmitting the abnormal cause to the tester by mail, information or other means.