技术领域technical field
本发明涉及通信领域，尤其涉及一种通信模块的电流测试系统及方法。The invention relates to the communication field, in particular to a current testing system and method for a communication module.
背景技术Background technique
在通信领域，通信模块的应用范围越来越广，对通信模块的性能要求也越来越高，为提高通信模块的工作性能，需要对通信模块进行大量的测试，其中通信模块在高、低温等环境下的压力测试中，测试通信模块的工作电流是否正常，是对通信模块的通性能测试的一个重要测试项。In the field of communication, the application range of communication modules is getting wider and wider, and the performance requirements of communication modules are getting higher and higher. In order to improve the working performance of communication modules, a large number of tests need to be carried out on communication modules. In the stress test under such environment, testing whether the working current of the communication module is normal is an important test item for the passability test of the communication module.
在现有技术中，通常采用人工操作监控程控电流电源的方式测试通信模块的电流，但程控电流电源非专用的测试电流的工具，而且程序电流电源的价格也普通偏高，测试成本太高，而且人工测试费时费力。In the prior art, the current of the communication module is usually tested by manually monitoring the program-controlled current power supply, but the program-controlled current power supply is not a special tool for testing current, and the price of the program current power supply is generally high, and the test cost is too high. And manual testing is time-consuming and labor-intensive.
发明内容Contents of the invention
本发明要解决的技术问题是为了克服现有技术中压力测试下的通信模块的电流测试方式成本高且费时费力的缺陷，提供一种通信模块的电流测试系统及方法。The technical problem to be solved by the present invention is to provide a communication module current testing system and method in order to overcome the defects of high cost and time-consuming and labor-intensive current testing methods of the communication module under pressure test in the prior art.
本发明是通过下述技术方案来解决上述技术问题：The present invention solves the above technical problems through the following technical solutions:
一种通信模块的电流测试系统，所述通信模块的电流测试系统包括供电通路选择模块和控制模块；A current testing system of a communication module, the current testing system of the communication module includes a power supply path selection module and a control module;
所述供电通路选择模块包括电压输入端、电压输出端和至少一与所述工作状态相对应的电压通路，所述电压输出端用于与所述通信模块的电源输入端电连接；所述电压输入端用于连接外部电源；The power supply channel selection module includes a voltage input terminal, a voltage output terminal and at least one voltage channel corresponding to the working state, and the voltage output terminal is used to electrically connect with the power input terminal of the communication module; the voltage The input terminal is used to connect the external power supply;
所述控制模块用于分别与所述通信模块的输出引脚以及所述通信模块的电压测量单元通信连接；The control module is used to communicate with the output pin of the communication module and the voltage measurement unit of the communication module respectively;
所述电压输入端和所述电压输出端用于分别与所述电压测量单元电连接；The voltage input terminal and the voltage output terminal are respectively used to be electrically connected to the voltage measurement unit;
所述控制模块用于根据所述通信模块的工作状态发送通路选择信号至所述输出引脚，所述通路选择信号由所述输出引脚发送至所述供电通路选择模块；The control module is used to send a channel selection signal to the output pin according to the working state of the communication module, and the channel selection signal is sent to the power supply channel selection module by the output pin;
所述供电通路选择模块用于接收所述通路选择信号并选择对应的电压通路，以使所述电压输入端和所述电压输出端之间的电压差值在所述电压测量单元的测试范围内；The power supply path selection module is used to receive the path selection signal and select a corresponding voltage path, so that the voltage difference between the voltage input end and the voltage output end is within the test range of the voltage measurement unit ;
所述控制模块还用于读取所述电压测量单元并获取所述电压差值，还用于根据所述电压差值和选择的所述电压通路得到所述通信模块的测试电流。The control module is also used to read the voltage measurement unit and obtain the voltage difference, and is also used to obtain the test current of the communication module according to the voltage difference and the selected voltage path.
较佳地，所述电压通路中设置负载和第一开关，所述第一开关用于根据所述通路选择信号断开或者导通对应的所述电压通路，所述控制模块还用于根据所述电压差值和导通的所述电压通路中的所述负载的负载值得到所述测试电流。Preferably, a load and a first switch are set in the voltage path, the first switch is used to disconnect or turn on the corresponding voltage path according to the path selection signal, and the control module is also used to The test current is obtained from the voltage difference and a load value of the load in the turned-on voltage path.
较佳地，所述控制模块还用于与所述控制模块的控制单元通信连接，所述控制模块还用于发送状态控制命令至所述控制单元，所述状态控制命令用于控制所述控制单元进入对应的所述工作状态；Preferably, the control module is also used to communicate with the control unit of the control module, and the control module is also used to send a state control command to the control unit, and the state control command is used to control the control unit. The unit enters the corresponding working state;
所述控制模块还用于预设所述工作状态与所述电压通路的对应关系，并根据所述对应关系和当前的所述工作状态发送所述通路选择信号至所述供电通路选择模块，以导通对应的电压通路。The control module is also used to preset the corresponding relationship between the working state and the voltage path, and send the path selection signal to the power supply path selection module according to the corresponding relationship and the current working state, so as to Turn on the corresponding voltage path.
较佳地，所述工作状态包括IDLE状态、慢时钟状态和最大功率发射测试状态中的至少一种。Preferably, the working state includes at least one of an IDLE state, a slow clock state and a maximum power emission test state.
较佳地，所述第一开关包括第一精度开关，所述负载包括第一负载，所述第一精度开关用于与所述输出引脚中的第一串口相对应，所述第一开关包括第一三极管电路和第一场效应管电路，所述通路选择信号包括高电平信号和低电平信号；Preferably, the first switch includes a first precision switch, the load includes a first load, and the first precision switch is used to correspond to the first serial port in the output pin, and the first switch It includes a first transistor circuit and a first field effect transistor circuit, and the channel selection signal includes a high-level signal and a low-level signal;
所述第一三极管电路包括第一三极管、第一电阻和第二电阻，所述第一场效应管电路包括第一场效应管和第三电阻；The first transistor circuit includes a first transistor, a first resistor and a second resistor, and the first field effect transistor circuit includes a first field effect transistor and a third resistor;
所述第一电阻的一端与所述第一串口电连接；One end of the first resistor is electrically connected to the first serial port;
所述第一电阻的另一端与所述第一三极管的基极电连接；The other end of the first resistor is electrically connected to the base of the first triode;
所述第二电阻的一端与所述第一三极管的基极电连接；One end of the second resistor is electrically connected to the base of the first triode;
所述第二电阻的另一端与所述第一三极管的发射极电连接并接地；The other end of the second resistor is electrically connected to the emitter of the first triode and grounded;
所述第三电阻的一端与所述电压输入端电连接；One end of the third resistor is electrically connected to the voltage input end;
所述第三电阻的另一端与所述第一场效应管的栅极电连接；The other end of the third resistor is electrically connected to the gate of the first field effect transistor;
所述第一三极管的集电极与所述第一场效应管的栅极电连接；The collector of the first triode is electrically connected to the gate of the first field effect transistor;
所述第一场效应管的源极与所述电压输入端电连接；The source of the first field effect transistor is electrically connected to the voltage input terminal;
所述第一场效应管的漏极通过所述第一负载与所述电源输入端电连接；The drain of the first field effect transistor is electrically connected to the input terminal of the power supply through the first load;
当所述第一串口输出所述高电平信号时，所述第一三极管和所述第一效应管均导通，所述电压输出端输出电压；When the first serial port outputs the high-level signal, both the first triode and the first effect transistor are turned on, and the voltage output terminal outputs a voltage;
当所述第一串口输出所述低电平信号时，所述第一三极管和所述第一效应管均截止，所述电压输出端无输出电压。When the first serial port outputs the low-level signal, both the first triode and the first effect transistor are turned off, and the voltage output end has no output voltage.
较佳地，所述负载为电阻性负载，不同的所述电压通路中的所述负载的负载值不同。Preferably, the load is a resistive load, and the load values of the loads in different voltage paths are different.
较佳地，所述供电通路选择模块还包括开机通路，所述开机通路包括第二开关，所述第二开关包括第二三极管电路和第二场效应管电路；Preferably, the power supply path selection module further includes a boot path, the boot path includes a second switch, and the second switch includes a second triode circuit and a second field effect transistor circuit;
所述第二三极管电路包括第二三极管、第四电阻和第五电阻，所述第二场效应管电路包括第二场效应管、第二场效应管、第六电阻和第七电阻；The second transistor circuit includes a second transistor, a fourth resistor, and a fifth resistor, and the second field effect transistor circuit includes a second field effect transistor, a second field effect transistor, a sixth resistor, and a seventh resistor. resistance;
所述第二三极管的基极通过所述第四电阻用于与所述输入引脚的一第二串口电连接；The base of the second triode is electrically connected to a second serial port of the input pin through the fourth resistor;
所述第五电阻的一端与所述第二三极管的基极电连接，另一端与所述第二三极管的发射极电连接并接地；One end of the fifth resistor is electrically connected to the base of the second triode, and the other end is electrically connected to the emitter of the second triode and grounded;
所述电压输入端通过所述第六电阻分别与所述第二三极管的集电极以及所述第二场效应管的栅极电连接；The voltage input terminal is electrically connected to the collector of the second triode and the gate of the second field effect transistor respectively through the sixth resistor;
所述第二三极管的集电极与所述第二场效应管的栅极电连接；The collector of the second triode is electrically connected to the gate of the second field effect transistor;
所述第二场效应管的源极与所述第三场效应管的栅极电连接；The source of the second field effect transistor is electrically connected to the gate of the third field effect transistor;
所述第二场效应管的漏极接地；The drain of the second field effect transistor is grounded;
所述电压输入端通过所述第七电阻与所述第二场效应管的源极电连接；The voltage input terminal is electrically connected to the source of the second field effect transistor through the seventh resistor;
所述电源输入端与所述第三场效应管的源极电连接，所述电源输出端与所述三场效应管的漏极电连接；The power supply input terminal is electrically connected to the source of the third field effect transistor, and the power supply output terminal is electrically connected to the drains of the three field effect transistors;
当所述第二串口输出所述高电平信号时，所述第二三极管导通，所述第二效应管，所述第三效应管截止，所述电压输出端无输出电压；When the second serial port outputs the high-level signal, the second triode is turned on, the second effect transistor and the third effect transistor are turned off, and the voltage output terminal has no output voltage;
当所述第二串口输出低电平信号时，所述第二三极管截止，所述第一效应管导通，所述第三效应管导通，所述电压输出端输出电压。When the second serial port outputs a low-level signal, the second triode is turned off, the first effect transistor is turned on, the third effect transistor is turned on, and the voltage output terminal outputs a voltage.
较佳地，所述第一开关还包括多个第二精度开关，所述负载还包括与所述第二精度开关对应的第二负载，每个所述第二精度开关与所述第二负载串联之后并联，所述第二精度开关用于与所述输出引脚中的第三串口相对应，所述第二精度开关包括第三三极管电路和第三场效应管电路；Preferably, the first switch further includes a plurality of second precision switches, and the load further includes a second load corresponding to the second precision switches, each of the second precision switches is connected to the second load connected in parallel after being connected in series, the second precision switch is used to correspond to the third serial port in the output pin, and the second precision switch includes a third triode circuit and a third field effect transistor circuit;
所述第三三极管电路包括第三三极管、第八电阻和第九电阻，所述第三场效应管电路包括第四场效应管、第五效应管和第十电阻；The third triode circuit includes a third transistor, an eighth resistor, and a ninth resistor, and the third field effect transistor circuit includes a fourth field effect transistor, a fifth effect transistor, and a tenth resistor;
所述第八电阻的一端与所述第三串口电连接；One end of the eighth resistor is electrically connected to the third serial port;
所述第八电阻的另一端与所述第三三极管的基极电连接；The other end of the eighth resistor is electrically connected to the base of the third triode;
所述第九电阻的一端与所述第三三极管的基极电连接；One end of the ninth resistor is electrically connected to the base of the third triode;
所述第九电阻的另一端与所述第三三极管的发射极电连接并接地；The other end of the ninth resistor is electrically connected to the emitter of the third triode and grounded;
所述第十电阻的一端分别与所述第四场效应管的栅极电连接和所述第五场效应管的栅极电连接；One end of the tenth resistor is electrically connected to the gate of the fourth field effect transistor and the gate of the fifth field effect transistor respectively;
所述电压输入端分别与所述第十电阻的另一端和所述第五场效应管的源极电连接；The voltage input terminals are respectively electrically connected to the other end of the tenth resistor and the source of the fifth field effect transistor;
所述第五场效应管的漏极与所述第四场效应管的漏极电连接；The drain of the fifth field effect transistor is electrically connected to the drain of the fourth field effect transistor;
所述第三三极管的集电极与所述第四场效应管的栅极电连接；The collector of the third triode is electrically connected to the gate of the fourth field effect transistor;
所述第四场效应管的源极与所述电压输入端电连接；The source of the fourth field effect transistor is electrically connected to the voltage input terminal;
所述第四场效应管的漏极通过所述第二负载与所述电源输入端电连接；The drain of the fourth field effect transistor is electrically connected to the input terminal of the power supply through the second load;
当所述第三串口输出所述高电平信号时，所述第三三极管、所述第四效应管和所述第五效应管均导通，所述电压输出端输出电压；When the third serial port outputs the high-level signal, the third triode, the fourth effect transistor and the fifth effect transistor are all turned on, and the voltage output terminal outputs a voltage;
当所述第三串口输出所述低电平信号时，所述第三三极管、所述第四效应管和所述第五效应管均截止，所述电压输出端无输出电压。When the third serial port outputs the low-level signal, the third triode, the fourth effect transistor and the fifth effect transistor are all turned off, and the voltage output end has no output voltage.
一种通信模块的电流测试方法，所述通信模块的电流测试方法基于如上所述的通信模块的电流测试系统实现，所述通信模块的电流测试方法包括：A current testing method of a communication module, the current testing method of the communication module is realized based on the current testing system of the communication module as described above, the current testing method of the communication module includes:
将所述电流测试系统的供电通路选择模块的电压输入端与外部电源电连接；Electrically connecting the voltage input terminal of the power supply path selection module of the current testing system with an external power supply;
将所述供电通路选择模块的电压输出端与所述通信模块的电源输入端电连接；electrically connecting the voltage output end of the power supply path selection module with the power input end of the communication module;
将所述电流测试系统的控制模块分别与所述通信模块的输出引脚和电压测量单元通信连接；Connecting the control module of the current testing system to the output pin of the communication module and the voltage measurement unit respectively;
将所述电压测量单元分别与所述电压输入端、所述电压输出端电连接；electrically connecting the voltage measuring unit to the voltage input terminal and the voltage output terminal respectively;
所述控制模块发送状态控制命令至所述通信模块，所述状态控制命令用于控制所述通信模块进入对应的所述工作状态；The control module sends a state control command to the communication module, and the state control command is used to control the communication module to enter the corresponding working state;
所述控制模块预设所述通信模块的工作状态与供电通路选择模块中的电压通路的对应关系；The control module presets the corresponding relationship between the working state of the communication module and the voltage path in the power supply path selection module;
所述控制模块根据所述通信模块的工作状态和所述对应关系发送通路选择信号至所述输出引脚；The control module sends a channel selection signal to the output pin according to the working state of the communication module and the corresponding relationship;
所述供电通路选择模块接收所述输出引脚发出的所述通路选择信号，并根据所述通路选择信号导通对应的电压通路；The power supply path selection module receives the path selection signal sent by the output pin, and turns on the corresponding voltage path according to the path selection signal;
所述控制模块读取所述电压测量单元并获取所述电压输入端和所述电压输入端的电压差值，还根据所述电压差值和选择的所述电压通路得到所述通信模块的测试电流。The control module reads the voltage measurement unit and obtains the voltage difference between the voltage input terminal and the voltage input terminal, and also obtains the test current of the communication module according to the voltage difference and the selected voltage path .
本发明的积极进步效果在于：The positive progress effect of the present invention is:
本发明的供电通路选择模块通过选择不同的电压通路为通信模块供电，供电通路选择模块与通信模块形成电路通路，通过获取电压通路两端的电压以及结合对应的电压通路，可得到电路通路中的电流，当将模块放置于测试环境中时，如高温，低温等测试环境中进行测试的过程中，可通过自动监测电路通路中的电流的变化，如果电流保持在预设变化阈值范围内，则说明模块工作正常，如果电流变化超过预设变化阈值范围，则说明通信模块工作异常，从而实现通信模块的各种测试环境下的电流的自动测试。The power supply path selection module of the present invention supplies power to the communication module by selecting different voltage paths, the power supply path selection module and the communication module form a circuit path, and by obtaining the voltage at both ends of the voltage path and combining the corresponding voltage path, the current in the circuit path can be obtained , when the module is placed in the test environment, such as high temperature, low temperature and other test environments during the test, the change of the current in the circuit path can be automatically monitored. If the current remains within the preset change threshold range, it means The module works normally, and if the current change exceeds the preset change threshold range, it indicates that the communication module is working abnormally, so as to realize the automatic test of the current of the communication module under various test environments.
附图说明Description of drawings
图1为本发明的实施例1的通信模块的电流测试系统的模块示意图。FIG. 1 is a block diagram of a current testing system for a communication module according to Embodiment 1 of the present invention.
图2为本发明的实施例3的通信模块的电流测试系统的模块示意图。FIG. 2 is a block diagram of a current testing system for a communication module according to Embodiment 3 of the present invention.
图3为本发明的实施例4的通信模块的电流测试系统的电路示意图。FIG. 3 is a schematic circuit diagram of a current testing system of a communication module according to Embodiment 4 of the present invention.
图4为本发明的实施例5的通信模块的电流测试系统的电路示意图。FIG. 4 is a schematic circuit diagram of a current testing system of a communication module according to Embodiment 5 of the present invention.
图5为本发明的实施例6的通信模块的电流测试方法的流程图。FIG. 5 is a flowchart of a current testing method of a communication module according to Embodiment 6 of the present invention.
具体实施方式Detailed ways
下面通过实施例的方式进一步说明本发明，但并不因此将本发明限制在所述的实施例范围之中。The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.
实施例1Example 1
本实施例提供一种通信模块的电流测试系统，本实施例中的通信模块0包括电源输入端01、电压测量单元02、输出引脚03和至少一工作状态，如图1所示，通信模块的电流测试系统包括供电通路选择模块1和控制模块2；This embodiment provides a current testing system for a communication module. The communication module 0 in this embodiment includes a power input terminal 01, a voltage measurement unit 02, an output pin 03, and at least one working state. As shown in FIG. 1, the communication module The current testing system includes a power supply path selection module 1 and a control module 2;
供电通路选择模块1包括电压输入端11、电压输出端12和至少一与工作状态相对应的电压通路13。The power supply channel selection module 1 includes a voltage input terminal 11 , a voltage output terminal 12 and at least one voltage channel 13 corresponding to a working state.
电压输出端12用于与通信模块的电源输入端01电连接；电压输入端11用于连接外部电源。外部电源可以为普通的电池。The voltage output terminal 12 is used to electrically connect with the power input terminal 01 of the communication module; the voltage input terminal 11 is used to connect to an external power supply. The external power source can be an ordinary battery.
控制模块2用于分别与通信模块的输出引脚03以及通信模块的电压测量单元02通信连接。The control module 2 is used to communicate with the output pin 03 of the communication module and the voltage measurement unit 02 of the communication module respectively.
控制模块2分别与输出引脚03和电压测量单元02通信连接；The control module 2 is communicatively connected with the output pin 03 and the voltage measurement unit 02 respectively;
电压输入端11、电压输出端12分别与电压测量单元02电连接；The voltage input terminal 11 and the voltage output terminal 12 are respectively electrically connected to the voltage measurement unit 02;
控制模块2用于根据通信模块的工作状态发送通路选择信号至输出引脚03，通路选择信号由输出引脚03发送至供电通路选择模块1。The control module 2 is used to send a channel selection signal to the output pin 03 according to the working state of the communication module, and the channel selection signal is sent to the power supply channel selection module 1 through the output pin 03 .
供电通路选择模块1用于接收通路选择信号并选择对应的电压通路13，以使电压输入端11和电压输出端12之间的电压差值在电压测量单元02的测试范围内。The power supply channel selection module 1 is used to receive the channel selection signal and select the corresponding voltage channel 13 so that the voltage difference between the voltage input terminal 11 and the voltage output terminal 12 is within the test range of the voltage measurement unit 02 .
控制模块2用于读取电压测量单元02并获取电压差值，还用于根据电压差值和选择的电压通路13得到通信模块的测试电流。The control module 2 is used to read the voltage measurement unit 02 and obtain the voltage difference, and is also used to obtain the test current of the communication module according to the voltage difference and the selected voltage path 13 .
本实施例的供电通路选择模块通过选择不同的供电通路为通信模块供电，供电通路选择模块与通信模块形成电路通路，通过获取供电通路上的电压差以及结合对应供电通路，可得到电路通路中的电流，当将模块放置于测试环境中时，如高温，低温等测试环境中进行测试的过程中，可通过自动监测电路通路中的电流的变化，如果电流变化保持在预设变化阈值范围内，则说明模块工作正常，如果电流变化超过预设变化阈值范围，则说明通信模块工作异常，从而实现通信模块的各种测试环境下的电流的自动测试。The power supply path selection module in this embodiment supplies power to the communication module by selecting different power supply paths, and the power supply path selection module and the communication module form a circuit path. Current, when the module is placed in the test environment, such as high temperature, low temperature and other test environments, during the test process, the current change in the circuit path can be automatically monitored. If the current change remains within the preset change threshold range, It means that the module is working normally, and if the current change exceeds the preset change threshold range, it means that the communication module is working abnormally, so as to realize the automatic test of the current of the communication module under various test environments.
实施例2Example 2
本实施例提供一种通信模块的电流测试系统，本实施例与实施例1相比，其区别在于，控制模块2还用于发送状态控制命令至通信模块0的控制单元，状态控制命令用于控制控制单元进入对应的工作状态；This embodiment provides a current testing system for a communication module. Compared with Embodiment 1, the difference between this embodiment is that the control module 2 is also used to send a state control command to the control unit of the communication module 0, and the state control command is used for Control the control unit to enter the corresponding working state;
控制模块3还用于预设工作状态与电压通路13的对应关系，并根据对应关系和当前的工作状态发送通路选择信号至输出引脚03，输出引脚03根据通路选择信号打开对应的电压通路13。The control module 3 is also used to preset the corresponding relationship between the working state and the voltage path 13, and send the path selection signal to the output pin 03 according to the corresponding relationship and the current working state, and the output pin 03 opens the corresponding voltage path according to the path selection signal 13.
通常，通信模块的工作状态包括IDLE状态、慢时钟状态和最大功率发射测试状态中的至少一种。Usually, the working state of the communication module includes at least one of an IDLE state, a slow clock state and a maximum power transmission test state.
通信模块在分别处理IDLE状态、慢时钟状态和最大功率发射测试状态时，电压测量单元和输出引脚的耗流非常小，在对通信模块的压力测试时，对通信模块的电流测试影响很小，可以忽略不计。When the communication module handles the IDLE state, the slow clock state and the maximum power emission test state respectively, the current consumption of the voltage measurement unit and the output pin is very small, and it has little influence on the current test of the communication module during the stress test of the communication module. , can be ignored.
本实施例通过控制模块预设通信模块的工作状态与电压通路的对应关系，并根据对应关系和通信模块当前的工作状态打开对应的电压通路。以实现通信模块的不同工作状态下的电流测试。In this embodiment, the control module presets the corresponding relationship between the working state of the communication module and the voltage path, and opens the corresponding voltage path according to the corresponding relationship and the current working state of the communication module. In order to realize the current test under different working states of the communication module.
实施例3Example 3
本实施例提供一种通信模块的电流测试系统，本实施例与实施例2相比，其区别在于，更具体的，如图2所示，电压通路13中设置第一开关131和负载132；This embodiment provides a current testing system for a communication module. Compared with Embodiment 2, this embodiment differs in that, more specifically, as shown in FIG. 2 , a first switch 131 and a load 132 are set in the voltage path 13;
第一开关131用于根据通路选择信号断开或者导通对应的电压通路13，控制模块2还用于根据电压差值和导通的电压通路13中的负载132的负载值得到测试电流。The first switch 131 is used to disconnect or turn on the corresponding voltage path 13 according to the path selection signal, and the control module 2 is also used to obtain the test current according to the voltage difference and the load value of the load 132 in the turned-on voltage path 13 .
此实施例的电压通路结构简单，成本低廉，可节省测试成本。The structure of the voltage path in this embodiment is simple, the cost is low, and the test cost can be saved.
实施例4Example 4
本实施例提供一种通信模块的电流测试系统，本实施例与实施例3相比，其区别在于，第一开关131包括第一精度开关，负载包括第一负载,如图3所示，输出引脚03包括至少一第一串口，第一串口分别与第一精度开关131相对应。This embodiment provides a current testing system for a communication module. Compared with Embodiment 3, the difference between this embodiment is that the first switch 131 includes a first precision switch, and the load includes a first load. As shown in FIG. 3 , the output The pin 03 includes at least one first serial port, and the first serial ports correspond to the first precision switches 131 respectively.
通信模块的工作状态通常包括IDLE状态、慢时钟状态和最大功率发射测试状态。本实施例以分别测试IDLE状态、慢时钟状态两个状态的电流为例，为匹配通信模块的IDLE状态、慢时钟状态，本实施例中对应设置两个串口，即第一串口GPIO1a、GPIO1b以及对应设置两个第一精度开关131a、131b。The working state of the communication module usually includes an IDLE state, a slow clock state and a maximum power transmission test state. In this embodiment, the current of the two states of IDLE state and slow clock state are respectively tested as an example. In order to match the IDLE state and slow clock state of the communication module, two serial ports are set correspondingly in this embodiment, namely the first serial port GPIO1a, GPIO1b and Two first precision switches 131a, 131b are correspondingly provided.
如图3所示，第一精度开关131a包括第一三极管电路和第一场效应管电路。As shown in FIG. 3 , the first precision switch 131a includes a first triode circuit and a first field effect transistor circuit.
本实施例中的通路选择信号包括高电平信号和低电平信号；The channel selection signal in this embodiment includes a high-level signal and a low-level signal;
第一三极管电路包括第一三极管T1、第一电阻R1和第二电阻R2，第一场效应管电路包括第一场效应管Q1和第三电阻R3；The first transistor circuit includes a first transistor T1, a first resistor R1 and a second resistor R2, and the first field effect transistor circuit includes a first field effect transistor Q1 and a third resistor R3;
第一电阻R1的一端与第一串口GPIO1电连接；One end of the first resistor R1 is electrically connected to the first serial port GPIO1;
第一电阻R1的另一端与第一三极管T1的基极电连接；The other end of the first resistor R1 is electrically connected to the base of the first triode T1;
第二电阻R2的一端与第一三极管T1的基极电连接；One end of the second resistor R2 is electrically connected to the base of the first triode T1;
第二电阻R2的另一端与第一三极管T1的发射极电连接并接地；The other end of the second resistor R2 is electrically connected to the emitter of the first triode T1 and grounded;
第三电阻R3的一端与电压输入端11电连接；One end of the third resistor R3 is electrically connected to the voltage input terminal 11;
第三电阻R3的另一端与第一场效应管Q1的栅极电连接；The other end of the third resistor R3 is electrically connected to the gate of the first field effect transistor Q1;
第一三极管T1的集电极与第一场效应管Q1的栅极电连接；The collector of the first transistor T1 is electrically connected to the gate of the first field effect transistor Q1;
第一场效应管Q1的源极与电压输入端11电连接；The source of the first field effect transistor Q1 is electrically connected to the voltage input terminal 11;
第一场效应管Q1的漏极通过电阻性第一负载R8与电源输入端01电连接；The drain of the first field effect transistor Q1 is electrically connected to the power supply input terminal O1 through a resistive first load R8;
第一精度开关131b与第一精度开关131a结构相同，为匹配通信模块的IDLE状态、慢时钟状态，第一精度开关131b中的第一负载R9与R8设置的电阻阻值设置为不相同。The first precision switch 131b has the same structure as the first precision switch 131a. In order to match the IDLE state and slow clock state of the communication module, the resistance values of the first loads R9 and R8 in the first precision switch 131b are set to be different.
因为通常通信模块在慢时钟模式时，通常耗流为3～5毫安，一般模数转换单元ADC的取样精度为mV级别，此时为能使电压测量单元ADC1和ADC2测试出的电流为3～5毫安，假设将慢时钟模式与第一精度开关131a建立对应关系，设计电阻性第一负载R8的阻值为50欧姆，T1和Q1的电阻值很小为几十毫欧级别，可以忽略不计，则在实际测试时，通过ADC1和ADC2测得的电压差除以R8的电阻值即为通信模块的电流，当在特定环境下，监测时，如果电流保持在预设变化阈值范围内，则说明模块慢时钟模式状态工作正常，如果电流变化超过预设变化阈值范围，则说明慢时钟模式状态工作异常。Usually, when the communication module is in the slow clock mode, the current consumption is usually 3-5 mA, and the sampling accuracy of the general analog-to-digital conversion unit ADC is at the mV level. At this time, the current measured by the voltage measurement units ADC1 and ADC2 is 3 ~5 mA, assuming that the slow clock mode is associated with the first precision switch 131a, the resistance value of the first resistive load R8 is designed to be 50 ohms, and the resistance values of T1 and Q1 are as small as tens of milliohms. Neglected, in the actual test, the voltage difference measured by ADC1 and ADC2 divided by the resistance value of R8 is the current of the communication module. When monitoring in a specific environment, if the current remains within the preset change threshold range , it means that the slow clock mode of the module is working normally. If the current change exceeds the preset change threshold range, it means that the slow clock mode is working abnormally.
通常通信模块在IDLE模式下通信模块的耗流为20～30毫安，假设将IDLE模式与第一精度开关131b建立对应关系，此时为能使电压测量单元ADC1和ADC2测得的电压差与电阻R9计算测得的电流为20～30毫安，设计电阻性负载R9的阻值为10欧姆，而且10欧姆电阻产生的20～30毫安电流产生0.2～0.3伏的压降不会影响通信模块工作。Usually, the current consumption of the communication module in the IDLE mode is 20-30 milliamps. Assuming that the IDLE mode is associated with the first precision switch 131b, at this time, the voltage difference measured by the voltage measurement units ADC1 and ADC2 can be compared with the The calculated and measured current of resistor R9 is 20-30 mA, and the resistance value of the designed resistive load R9 is 10 ohms, and the 20-30 mA current generated by the 10-ohm resistor will generate a voltage drop of 0.2-0.3 volts without affecting communication The module works.
在进行实际测试时，将通信模块在相应的工作状态下选择对应的通路进行匹配，当通信模块进入慢时钟模式时，第一串口GPIO1输出高电平信号，第一精度开关131a的第一三极管T1和第一效应管Q1均导通，此时第一精度开关131a导通，电压输出端12输出电压，此时为慢时钟模式下的电流测试。During the actual test, the communication module is selected in the corresponding working state to match the corresponding channel. When the communication module enters the slow clock mode, the first serial port GPIO1 outputs a high level signal, and the first three of the first precision switch 131a Both the transistor T1 and the first effect transistor Q1 are turned on, the first precision switch 131a is turned on at this time, and the voltage output terminal 12 outputs a voltage, which is a current test in the slow clock mode.
当要进行测试状态切换时，比如切换至IDLE状态，进行电流测试时，为保证通信模块不断电，可控制第一串口GPIO1b输出高电平信号，第一精度开关131b的第一三极管T1和第一效应管Q1均导通，此时第一精度开关131b导通，电压输出端12输出电压，设置一预设时间间隔，等131b工作稳定后，然后将第一串口GPIO1a输出低电平信号，第一精度开关131a的第一三极管T1和第一效应管Q1均截止，此时可进行IDLE模式下的电流测试。When switching the test state, such as switching to the IDLE state, and performing a current test, in order to ensure that the communication module is not powered on, the first serial port GPIO1b can be controlled to output a high-level signal, and the first transistor T1 of the first precision switch 131b and the first effect transistor Q1 are both turned on, at this time the first precision switch 131b is turned on, the voltage output terminal 12 outputs a voltage, set a preset time interval, after the 131b works stably, then the first serial port GPIO1a outputs a low level signal, the first triode T1 and the first effect transistor Q1 of the first precision switch 131a are both turned off, and the current test in the IDLE mode can be performed at this time.
为进一步提高测试效率，供电通路选择模块1还包括开机通路14，开机通路14用于为通信模块自动上电开机。In order to further improve the test efficiency, the power supply path selection module 1 also includes a boot path 14, which is used for automatically powering on and starting the communication module.
开机通路14包括第二开关，第二开关包括第二三极管电路和第二场效应管电路；控制模块还包括第二串口GPIO2。The boot path 14 includes a second switch, and the second switch includes a second triode circuit and a second field effect transistor circuit; the control module also includes a second serial port GPIO2.
第二三极管电路包括第二三极管T2、第四电阻R4和第五电阻R5，第二场效应管电路包括第二场效应管Q2、第三场效应管Q3、第六电阻R 6和第七电阻R7；The second transistor circuit includes a second transistor T2, a fourth resistor R4 and a fifth resistor R5, and the second field effect transistor circuit includes a second field effect transistor Q2, a third field effect transistor Q3, and a sixth resistor R6 and the seventh resistor R7;
第二串口GPIO2通过第四电阻R4与第二三极管T2的基极电连接；The second serial port GPIO2 is electrically connected to the base of the second triode T2 through the fourth resistor R4;
第五电阻R5的一端与第二三极管T2的基极电连接，另一端与第二三极管T2的发射极电连接并接地；One end of the fifth resistor R5 is electrically connected to the base of the second transistor T2, and the other end is electrically connected to the emitter of the second transistor T2 and grounded;
电压输入端11通过第六电阻R6分别与第二三极管T2的集电极以及第二场效应管Q2的栅极电连接；The voltage input terminal 11 is respectively electrically connected to the collector of the second transistor T2 and the gate of the second field effect transistor Q2 through the sixth resistor R6;
第二三极管T2的集电极与第二场效应管Q2的栅极电连接；The collector of the second transistor T2 is electrically connected to the gate of the second field effect transistor Q2;
第二场效应管Q2的源极与第三场效应管Q3的栅极电连接；The source of the second field effect transistor Q2 is electrically connected to the gate of the third field effect transistor Q3;
第二场效应管Q2的漏极接地；The drain of the second field effect transistor Q2 is grounded;
电压输入端11通过第七电阻R7与第二场效应Q2管的源极电连接；The voltage input terminal 11 is electrically connected to the source of the second field effect Q2 transistor through the seventh resistor R7;
电压输入端11与第三场效应管Q3的源极电连接，电源输出端12与第三场效应管Q3的漏极电连接；The voltage input terminal 11 is electrically connected to the source of the third field effect transistor Q3, and the power supply output terminal 12 is electrically connected to the drain of the third field effect transistor Q3;
当第二串口GPIO2输出高电平信号时，第二三极管T2导通，第二效应管Q2和第三效应管Q3截止，电压输出端13无输出电压；When the second serial port GPIO2 outputs a high-level signal, the second transistor T2 is turned on, the second effect transistor Q2 and the third effect transistor Q3 are turned off, and the voltage output terminal 13 has no output voltage;
当第二串口GPIO2输出低电平信号时，第二三极管T2截止，第二效应管Q2和第三效应管Q3均导通，电压输出端13输出电压。When the second serial port GPIO2 outputs a low-level signal, the second transistor T2 is turned off, the second effect transistor Q2 and the third effect transistor Q3 are both turned on, and the voltage output terminal 13 outputs a voltage.
在电源上电开始，此时通信模块还未上电开机，GPIO1a、GPIO1b和GPIO2均无驱动能力各晶体管包括两个第一精度开关中的T1和第二开关中的T2均关闭；此时第二场效应Q2打开，导致第三效应管Q3打开，外部电源通过开机通路14为通信模块供电，其中Q1等效阻抗为10毫欧，通信模块正常开机。At the beginning of power-on, the communication module has not yet been powered on, and GPIO1a, GPIO1b, and GPIO2 have no drive capability. Each transistor, including T1 in the two first-precision switches and T2 in the second switch, is closed; at this time The second field effect Q2 is turned on, causing the third effect transistor Q3 to be turned on, and the external power supplies power to the communication module through the power-on path 14, wherein the equivalent impedance of Q1 is 10 milliohms, and the communication module starts normally.
实施例5Example 5
本实施例提供一种通信模块的电流测试系统，本实施例与实施例4相比，其区别在于，因为当通信模块的工作状态为最大功率发射测试状态时，通信模块的平均耗流为600～700毫安，为提高电压测量模块测量的电压的精度，尽量减小电压通路中开关的影响，如图4所示，第一开关131还包括多个第二精度开关131c，负载132还包括与第二精度开关131c对应的第二负载，每个第二精度开关与第二负载串联之后的线路再进行并联。This embodiment provides a current testing system for a communication module. Compared with Embodiment 4, the difference between this embodiment is that when the working state of the communication module is the maximum power transmission test state, the average current consumption of the communication module is 600 ~700 mA, in order to improve the accuracy of the voltage measured by the voltage measurement module and minimize the influence of switches in the voltage path, as shown in Figure 4, the first switch 131 also includes a plurality of second precision switches 131c, and the load 132 also includes For the second load corresponding to the second precision switch 131c, the circuit after each second precision switch is connected in series with the second load is then connected in parallel.
第二精度开关用于与输出引脚中的第三串口GPIO3相对应，第二精度开关包括第三三极管电路和第三场效应管电路；The second precision switch is used to correspond to the third serial port GPIO3 in the output pin, and the second precision switch includes a third triode circuit and a third field effect tube circuit;
第三三极管电路包括第三三极管T3、第八电阻R10和第九电阻R11，第三场效应管电路包括第四场效应管Q4、第五效应管Q5和第十电阻R12；The third triode circuit includes a third transistor T3, an eighth resistor R10 and a ninth resistor R11, and the third field effect transistor circuit includes a fourth field effect transistor Q4, a fifth effect transistor Q5 and a tenth resistor R12;
第八电阻R10的一端与第三串口GPIO3电连接；One end of the eighth resistor R10 is electrically connected to the third serial port GPIO3;
第八电阻R10的另一端与第三三极管T3的基极电连接；The other end of the eighth resistor R10 is electrically connected to the base of the third transistor T3;
第九电阻R11的一端与第三三极管T3的基极电连接；One end of the ninth resistor R11 is electrically connected to the base of the third transistor T3;
第九电阻R11的另一端与第三三极管T3的发射极电连接并接地；The other end of the ninth resistor R11 is electrically connected to the emitter of the third triode T3 and grounded;
第十电阻R12的一端分别与第四场效应管Q4的栅极电连接和第五场效应管Q5的栅极电连接；One end of the tenth resistor R12 is electrically connected to the gate of the fourth field effect transistor Q4 and the gate of the fifth field effect transistor Q5 respectively;
电压输入端11分别与第十电阻R12的另一端和第五场效应管Q5的源极电连接；The voltage input terminal 11 is respectively electrically connected to the other end of the tenth resistor R12 and the source of the fifth field effect transistor Q5;
第五场效应管Q5的漏极与第四场效应管Q4的漏极电连接；The drain of the fifth field effect transistor Q5 is electrically connected to the drain of the fourth field effect transistor Q4;
第三三极管T3的集电极与第四场效应管Q4的栅极电连接；The collector of the third transistor T3 is electrically connected to the gate of the fourth field effect transistor Q4;
第四场效应管Q4的源极与电压输入端11电连接；The source of the fourth field effect transistor Q4 is electrically connected to the voltage input terminal 11;
第四场效应管Q4的漏极通过第二负载R13与电源输入端01电连接；The drain of the fourth field effect transistor Q4 is electrically connected to the power input terminal O1 through the second load R13;
当第三串口输出高电平信号时，第三三极管T3、第四效应管Q4和第五效应管Q5均导通，电压输出端输出电压。When the third serial port outputs a high-level signal, the third triode T3, the fourth effect transistor Q4 and the fifth effect transistor Q5 are all turned on, and the voltage output terminal outputs a voltage.
当第三串口GPIO3输出低电平信号时，第三三极管T3、第四效应管Q4和第五效应管Q5均截止，电压输出端无输出电压。When the third serial port GPIO3 outputs a low-level signal, the third triode T3, the fourth effect transistor Q4 and the fifth effect transistor Q5 are all cut off, and the voltage output terminal has no output voltage.
第二精度开关采用多路场效应管与一较大电阻并联，以降低开关对电压通路的影响，例如10路场效应管与500毫欧电阻，通常并联场效应管的阻值大约为10毫欧，其数值远小于500毫欧电阻的阻值，所以对电压通路的影响很小。The second precision switch uses multiple FETs in parallel with a large resistor to reduce the impact of the switch on the voltage path. For example, 10 FETs and 500 milliohm resistors, usually the resistance of the parallel FETs is about 10 milliohms ohm, its value is much smaller than the resistance of the 500 milliohm resistor, so it has little effect on the voltage path.
实施例6Example 6
本实施例提供一种通信模块的电流测试方法，本实施例的通信模块的电流测试方法基于以上的通信模块的电流测试系统实现，如图5所示，通信模块的电流测试方法包括：This embodiment provides a current testing method for a communication module. The current testing method for a communication module in this embodiment is implemented based on the above current testing system for a communication module. As shown in FIG. 5 , the current testing method for a communication module includes:
步骤51、将电流测试系统的供电通路选择模块的电压输入端与外部电源电连接；Step 51, electrically connecting the voltage input end of the power supply path selection module of the current testing system with an external power supply;
步骤52、将供电通路选择模块的电压输出端与通信模块的电源输入端电连接；Step 52, electrically connecting the voltage output terminal of the power supply path selection module with the power input terminal of the communication module;
步骤53、将电流测试系统的控制模块分别与通信模块的输出引脚、电压测量单元和控制单元通信连接；Step 53, connecting the control module of the current testing system to the output pin of the communication module, the voltage measurement unit and the control unit respectively;
步骤54、将电压测量单元分别与电压输入端、电压输出端电连接；Step 54, electrically connecting the voltage measurement unit to the voltage input terminal and the voltage output terminal respectively;
步骤55、控制模块发送状态控制命令至通信模块，状态控制命令用于控制通信模块进入对应的工作状态；Step 55, the control module sends a state control command to the communication module, and the state control command is used to control the communication module to enter a corresponding working state;
步骤56、控制模块预设通信模块的工作状态与供电通路选择模块中的电压通路的对应关系；Step 56, the control module presets the corresponding relationship between the working state of the communication module and the voltage path in the power supply path selection module;
步骤57、控制模块根据通信模块的工作状态和对应关系发送通路选择信号至输出引脚；Step 57, the control module sends the channel selection signal to the output pin according to the working state and corresponding relationship of the communication module;
步骤58、供电通路选择模块接收输出引脚发出的通路选择信号，并根据通路选择信号导通对应的电压通路；Step 58, the power supply path selection module receives the path selection signal sent by the output pin, and conducts the corresponding voltage path according to the path selection signal;
步骤59、控制模块读取电压测量单元并获取电压输入端和电压输入端的电压差值，还根据电压差值和选择的电压通路得到通信模块的测试电流。Step 59, the control module reads the voltage measurement unit and obtains the voltage difference between the voltage input terminal and the voltage input terminal, and also obtains the test current of the communication module according to the voltage difference and the selected voltage path.
本实施例的通过选择不同的负载通路为通信模块供电，供电通路选择模块与通信模块形成电路通路，通过获取负载通路上的负载两端的电压以及结合对应负载通路上的负载，可得到电路通路中的电流，当将模块放置于测试环境中时，如高温，低温等测试环境中进行测试的过程中，可通过自动监测电路通路中的电流的变化，如果电流变化保持在预设变化阈值范围内，则说明模块工作正常，如果电流变化超过预设变化阈值范围，则说明通信模块工作异常，从而实现通信模块的各种测试环境下的电流的自动测试。In this embodiment, different load paths are selected to supply power to the communication module. The power supply path selection module and the communication module form a circuit path. When the module is placed in the test environment, such as high temperature, low temperature and other test environments, the current change in the circuit path can be automatically monitored, if the current change remains within the preset change threshold range , it means that the module is working normally, and if the current change exceeds the preset change threshold range, it means that the communication module is working abnormally, so as to realize the automatic test of the current of the communication module under various test environments.
虽然以上描述了本发明的具体实施方式，但是本领域的技术人员应当理解，这仅是举例说明，本发明的保护范围是由所附权利要求书限定的。本领域的技术人员在不背离本发明的原理和实质的前提下，可以对这些实施方式做出多种变更或修改，但这些变更和修改均落入本发明的保护范围。Although the specific implementation of the present invention has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623093.6ACN110261704B (en) | 2019-07-11 | 2019-07-11 | Current testing system and method of communication module |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623093.6ACN110261704B (en) | 2019-07-11 | 2019-07-11 | Current testing system and method of communication module |
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| CN110261704Atrue CN110261704A (en) | 2019-09-20 |
| CN110261704B CN110261704B (en) | 2021-07-16 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201910623093.6AActiveCN110261704B (en) | 2019-07-11 | 2019-07-11 | Current testing system and method of communication module |
| Country | Link |
|---|---|
| CN (1) | CN110261704B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613163A (en)* | 2020-05-27 | 2020-09-01 | 苏州华兴源创科技股份有限公司 | OLED display panel negative current detection device and display device |
| CN111665412A (en)* | 2019-12-11 | 2020-09-15 | 重庆芯讯通无线科技有限公司 | Method and system for testing aging of module on/off |
| CN111698630A (en)* | 2019-12-02 | 2020-09-22 | 芯讯通无线科技（上海）有限公司 | Test system of audio interface of wireless communication module |
| CN112731030A (en)* | 2020-12-23 | 2021-04-30 | 深圳市优必选科技股份有限公司 | Electronic component detection method and device, terminal equipment and storage medium |
| CN113655328A (en)* | 2021-08-31 | 2021-11-16 | 浙江睿索电子科技有限公司 | Multi-path free editing grouping test device and test method |
| CN114578255A (en)* | 2022-01-27 | 2022-06-03 | 苏州浪潮智能科技有限公司 | Method and system for testing power supply voltage |
| CN114911664A (en)* | 2022-07-18 | 2022-08-16 | 上海泰矽微电子有限公司 | Multi-power supply switching SOC test method and system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1750687A (en)* | 2004-09-15 | 2006-03-22 | 乐金电子(中国)研究开发中心有限公司 | Charging current compensating device and method of mobile communication terminal |
| CN1780162A (en)* | 2004-11-23 | 2006-05-31 | 乐金电子(中国)研究开发中心有限公司 | Mobile communication terminal with anomalous electric current checking function and method thereof |
| CN201904769U (en)* | 2010-09-01 | 2011-07-20 | 文祚明 | Sampling circuit gear fast switching device |
| CN102520239A (en)* | 2012-01-05 | 2012-06-27 | 重庆市电力公司电力科学研究院 | Power consumption testing system for communication module of electricity information acquisition system |
| CN202424727U (en)* | 2011-12-01 | 2012-09-05 | 深圳市航天泰瑞捷电子有限公司 | Portable testing device of micropower wireless communication module |
| CN203786484U (en)* | 2014-02-25 | 2014-08-20 | 苏州美高立电气有限公司 | AC-DC universal active switching input detection device |
| CN205091064U (en)* | 2015-10-23 | 2016-03-16 | 上海移远通信技术有限公司 | A temperature measuring system for last chip of working of communication module |
| CN106526362A (en)* | 2016-10-25 | 2017-03-22 | 上海移远通信技术股份有限公司 | Test system of wireless communication module |
| CN109709840A (en)* | 2018-12-06 | 2019-05-03 | 芜湖市努尔航空信息科技有限公司 | A kind of remote monitoring system of electronic communication equipment |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1750687A (en)* | 2004-09-15 | 2006-03-22 | 乐金电子(中国)研究开发中心有限公司 | Charging current compensating device and method of mobile communication terminal |
| CN1780162A (en)* | 2004-11-23 | 2006-05-31 | 乐金电子(中国)研究开发中心有限公司 | Mobile communication terminal with anomalous electric current checking function and method thereof |
| CN201904769U (en)* | 2010-09-01 | 2011-07-20 | 文祚明 | Sampling circuit gear fast switching device |
| CN202424727U (en)* | 2011-12-01 | 2012-09-05 | 深圳市航天泰瑞捷电子有限公司 | Portable testing device of micropower wireless communication module |
| CN102520239A (en)* | 2012-01-05 | 2012-06-27 | 重庆市电力公司电力科学研究院 | Power consumption testing system for communication module of electricity information acquisition system |
| CN203786484U (en)* | 2014-02-25 | 2014-08-20 | 苏州美高立电气有限公司 | AC-DC universal active switching input detection device |
| CN205091064U (en)* | 2015-10-23 | 2016-03-16 | 上海移远通信技术有限公司 | A temperature measuring system for last chip of working of communication module |
| CN106526362A (en)* | 2016-10-25 | 2017-03-22 | 上海移远通信技术股份有限公司 | Test system of wireless communication module |
| CN109709840A (en)* | 2018-12-06 | 2019-05-03 | 芜湖市努尔航空信息科技有限公司 | A kind of remote monitoring system of electronic communication equipment |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111698630A (en)* | 2019-12-02 | 2020-09-22 | 芯讯通无线科技（上海）有限公司 | Test system of audio interface of wireless communication module |
| CN111698630B (en)* | 2019-12-02 | 2022-04-05 | 芯讯通无线科技（上海）有限公司 | Test system of audio interface of wireless communication module |
| CN111665412A (en)* | 2019-12-11 | 2020-09-15 | 重庆芯讯通无线科技有限公司 | Method and system for testing aging of module on/off |
| CN111613163A (en)* | 2020-05-27 | 2020-09-01 | 苏州华兴源创科技股份有限公司 | OLED display panel negative current detection device and display device |
| CN112731030A (en)* | 2020-12-23 | 2021-04-30 | 深圳市优必选科技股份有限公司 | Electronic component detection method and device, terminal equipment and storage medium |
| CN113655328A (en)* | 2021-08-31 | 2021-11-16 | 浙江睿索电子科技有限公司 | Multi-path free editing grouping test device and test method |
| CN113655328B (en)* | 2021-08-31 | 2024-07-02 | 浙江睿索电子科技有限公司 | Multi-path free editing grouping testing device and testing method |
| CN114578255A (en)* | 2022-01-27 | 2022-06-03 | 苏州浪潮智能科技有限公司 | Method and system for testing power supply voltage |
| CN114578255B (en)* | 2022-01-27 | 2024-02-02 | 苏州浪潮智能科技有限公司 | A power supply voltage testing method and system |
| CN114911664A (en)* | 2022-07-18 | 2022-08-16 | 上海泰矽微电子有限公司 | Multi-power supply switching SOC test method and system |
| CN114911664B (en)* | 2022-07-18 | 2022-09-30 | 上海泰矽微电子有限公司 | Multi-path power supply switching SOC test method and system |
| Publication number | Publication date |
|---|---|
| CN110261704B (en) | 2021-07-16 |
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|---|---|---|
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