CN101399864A - Test system and method for standby current of mobile terminal - Google Patents
Test system and method for standby current of mobile terminal Download PDFInfo
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Abstract
The invention discloses a testing system and a testing method for a standby current of a movable terminal; the testing system includes a sampling resistance, a multimeter, a power and a movable terminal which are connected in series for forming a testing loop as well as a data collector connected in parallel with the sampling resistance; the invention further includes a comprehensive measuring device connected with the movable terminal and a shielding box which shields the movable terminal inside the shielding box. During testing, the movable terminal is arranged in a testing network environment and the movable terminal is started into a standby state; then the testing is started, the voltage at the two ends of the sampling resistance connected in series with the movable terminal is collected in real time by the data collector; the voltage data of the whole standby measuring process is preserved; after the measurement is finished, a real time standby current value in the whole standby process is obtained according to the relation formula of the voltage that I is equal to U/R; and the average standby current value during the standby measuring process is further obtained by an integral mean of (1/t) multiply the integral of f from 0 to t. The invention has the advantages of high technical precision, high flexibility and being capable of tracing the state change of a mobile phone terminal.
Description
Technical Field
The invention relates to the technical field of parameter measurement of mobile terminals, in particular to a system and a method for testing standby current of a mobile terminal.
Background
With the rapid development of wireless communication, mobile terminals having communication functions have attracted attention as a means for rapid and convenient wireless communication, and their powerful functions, rich services, and personalized services have been recognized and favored by people. The research and development quality of the mobile phone terminal is the starting point of each mobile phone terminal manufacturer, and the key point and the hot point of competition of the mobile phone terminal are to ensure that the mobile phone terminal works more permanently, so that the control of the standby current of the mobile phone terminal becomes the key point of defeating the mobile phone terminal. Therefore, the test of the standby current becomes the first pass for verifying the quality of the mobile phone, and is also a very important link in the research and development process of the mobile phone, and the test result is the direction for solving problems for research and development personnel.
For the test of the standby current of the mobile phone terminal, the conventional method for measuring the standby current by using the universal meter connected in series under the real network and the method for measuring the standby current by using the universal meter connected in series under the ideal network (the mobile phone is connected with the comprehensive tester) has the following main defects:
(1) the method for measuring standby current by using the tandem multimeter is to average standby current within test time, and has low precision;
(2) the two previous test methods have poor flexibility under different test requirements;
(3) the standby current testing method of the tandem multimeter only has a final average value, and can not track the change of the standby current of the mobile phone terminal in real time;
(4) the universal meter is used for measurement, if the average value of the standby current is required to be obtained, the real-time change of the current in the whole process cannot be observed, even if the universal meter is not used for reaching the AVG (automatic voltage regulation) grade, only one change of the current can be seen, and data cannot be recorded, so that the change of the state of the mobile phone terminal cannot be tracked.
Aiming at the defects of low precision, poor flexibility, incapability of tracking the state change of a mobile phone terminal and the like in the prior art, a more accurate test method and a more accurate test system for standby current are needed to realize real-time measurement with high precision and high flexibility.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a system and a method for testing standby current of a mobile terminal, which aim at the defects in the measurement of standby current in the prior art, and realize real-time measurement of standby current of the mobile terminal with high precision and high flexibility.
The invention provides a mobile terminal standby current testing system which comprises a sampling resistor, a universal meter, a power supply, a mobile terminal and a data acquisition unit, wherein the sampling resistor, the universal meter, the power supply and the mobile terminal are connected in series to form a testing loop, and the data acquisition unit is connected with the sampling resistor in parallel.
The test system further comprises a comprehensive tester connected with the mobile terminal. The comprehensive tester is a base station simulator, is connected with the mobile terminal through a radio frequency cable and is used for generating network signals under an ideal network.
The test system further comprises a shielding box for shielding the mobile terminal.
The data collector is used for collecting and recording voltages at two ends of the sampling resistor in real time, obtaining a current value according to a relation formula I of current and voltage, and performing integral average on the current value
An average standby current value is obtained.
The sampling resistor is a precision resistor with a known resistance value, and the resistance value of the sampling resistor is selected to be 1 ohm or 0.1 ohm according to the precision requirement.
The invention also provides a standby current testing method based on the testing system, which comprises the following steps:
(1) placing the mobile terminal in a test network environment, and starting the mobile terminal to enter a standby state;
(2) starting a test, acquiring voltages at two ends of a sampling resistor connected with the mobile terminal in series by a data acquisition unit in real time, and storing voltage data of the whole standby measurement process;
(3) after the measurement is finished, obtaining the real-time standby current value in the whole standby process according to the relation formula I of current and voltage, namely U/R, and carrying out integral average
And further obtaining the average standby current value in the standby measurement process.
The step (3) further comprises:
and drawing by using a data analysis tool according to the real-time standby circuit data to obtain the real-time standby current visual condition of the mobile terminal in the standby mode.
The network environment in the step (1) refers to an actual network environment, an ideal network environment or a network-free environment; wherein,
the actual network environment refers to a network of GSM, TD-SCDMA, CDMA, WCDMA or PHS system;
the ideal network environment is a GSM, TD-SCDMA, CDMA, WCDMA or PHS network simulated by the integrated tester connected with the mobile terminal;
the network-free environment refers to an environment without any network signal, which is obtained by shielding the mobile terminal in a shielding box.
The data acquisition unit acquires and records two ends of the sampling resistor in real time in the step (2)After voltage is applied, a real-time standby current value is obtained according to a relation formula I of current and voltage, wherein the relation formula I is U/R, and the standby current value is subjected to integral average
An average standby current value is obtained.
Compared with the prior art, the test system and the test method have the following advantages:
(1) the system complexity is low, the test data precision is high, and the sampling resistance value can be adjusted to obtain results with different precisions;
(2) the system flexibility is high, the standby current of the mobile phone terminals of different systems can be obtained by replacing different comprehensive test instruments with the same test loop, and meanwhile, the standby current value in a network-free state can also be measured;
(3) the high sampling rate of the data acquisition unit can capture the current value of the mobile phone terminal to be detected in real time, thereby being beneficial to the analysis of data;
(4) the states of position updating, interaction with a base station and the like of the mobile phone terminal to be tested can be analyzed according to the recorded current value, and the detail change of the mobile phone terminal to be tested is concerned.
Drawings
FIG. 1 is a schematic diagram of a test connection of a standby current test system according to the present invention;
FIG. 2 is a flowchart showing the detailed operation of the test system according to the present invention;
FIG. 3 is a testing system for testing standby current in a practical network according to the present invention;
FIG. 4 is a testing system for testing standby current in an ideal network according to the present invention;
FIG. 5 is a testing system for performing a standby current test without a network according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
Aiming at the defects and shortcomings of the existing testing method, the invention provides a solution for tracking and sampling the standby current of the mobile phone terminal in real time by using a data acquisition unit, so that the change of the mobile phone terminal in the whole standby process can be acquired, and the positioning and the solution of the problems are facilitated.
In order to achieve the above purpose, as shown in fig. 1, the standby current testing system of the present invention includes a sampling resistor, a multimeter, a power supply, a mobile phone terminal, a data collector connected in parallel with the sampling resistor, and a shielding box and a comprehensive tester connected to the mobile phone terminal, wherein:
a data acquisition unit: the current measuring device is main testing equipment in standby current measurement, a data collector samples a sampling resistor to obtain voltages at two ends of the sampling resistor, and the current of a tested mobile phone terminal can be obtained by calculating a formula I which is U/R;
sampling resistance: the method comprises the following steps of using a precision resistor which is a sampling reference in standby circuit measurement, using a data collector to sample data of a sampling resistor, and connecting the sampling resistor in series with a tested mobile phone terminal;
a multimeter: the instrument is connected in series in a test loop, and the average standby current value of the tested mobile phone terminal in the time period can be obtained after the specified test time;
and (3) comprehensive measuring instrument: the base station simulator is connected with the mobile phone terminal to be tested through a radio frequency cable, and the standby current value under an ideal network can be obtained;
a mobile phone terminal: namely the device under test in standby current measurement;
a shielding box: the device for shielding the wireless communication network is characterized in that a tested mobile phone terminal is placed in a shielding box, and the standby current of the mobile phone terminal under the condition of no network can be measured;
power supply: and the instrument provides working voltage for the tested mobile phone terminal.
As shown in fig. 2, the operation steps of the standby current test based on the system shown in fig. 1 are shown:
101. completing the construction of a test system;
102. inserting necessary test cards (such as SIM/USIM cards) into the tested mobile phone terminal;
103. the power supply provides normal working voltage, such as 3.7V, for the tested mobile phone terminal;
104. setting various parameters of PC side software of the data acquisition unit;
105. setting the tested mobile phone terminal to be in a mode needing to be tested, and if the mobile phone terminal needs to be tested, performing the next testing step; if not, ending the test;
106. starting up a tested mobile phone terminal, registering the mobile phone terminal to a corresponding test network and entering a standby state;
107. and starting a voltage acquisition program of the data acquisition device to test the standby current of the mobile phone terminal.
In a specific process of measuring the standby current of the mobile phone terminal, three test conditions can be adopted:
(1) actual network testing, namely, a mobile phone terminal is connected to a real network, and standby current testing is carried out in a networking state;
(2) an ideal network test is carried out, namely, a mobile phone terminal is connected to the comprehensive tester to simulate an ideal network for testing;
(3) and (4) network-free testing, namely placing the mobile phone terminal into a shielding box and testing the standby current of the mobile phone terminal under the network-free condition.
As shown in fig. 3, a test system configuration diagram of embodiment 1 is shown in the actual network test. The sampling resistor, the universal meter, the power supply and the mobile phone terminal are connected in series to form a test loop, the data acquisition unit is connected with the sampling resistor in parallel, and the mobile phone terminal is registered on an actual network.
As shown in fig. 4, a structure diagram of the test system of embodiment 2 is shown in the ideal network test. The sampling resistor, the universal meter, the power supply and the mobile phone terminal are connected in series to form a test loop, the data acquisition unit is connected with the sampling resistor in parallel, and the mobile phone terminal is connected with the comprehensive tester through a radio frequency cable.
As shown in fig. 5, a structure of the test system of embodiment 3 is shown when no network test is performed. The sampling resistor, the universal meter, the power supply and the mobile phone terminal are connected in series to form a test loop, the data collector is connected with the sampling resistor in parallel, and the mobile phone terminal is arranged in the shielding box and is in a state without network connection.
The invention is based on the above-mentioned system to carry on the method that the standby current tests, connect the above-mentioned test system in the mobile phone, and after entering the standby state needing to test, start the standby current test, gather the voltage of the both ends of the sampling resistor in real time by the data collector, keep the voltage data of the whole standby process, after measuring and finishing, according to the relation formula I of the current and voltage that can get the real-time standby current value in the whole standby process, through the average current value of integral
And further obtaining the average standby current value in the standby measurement process, and drawing by using a data analysis tool can intuitively obtain the real-time situation of the standby current in the mode. And the average standby current value measured by the multimeter and the average standby current value measured by the data collector can be compared and mutually verified to be used as reference.
When the standby current is measured in the three test embodiments 1, 2, and 3, the standby current of the tested mobile phone terminal is tested by using the data collector to collect the voltages at the two ends of the sampling resistor, the power supply, the mobile phone terminal, the universal meter, and the sampling resistor are connected in series as shown in fig. 1, 3, 4, and 5, and the data collector is connected in parallel at the two ends of the sampling resistor. A necessary test card (SIM/USIM card) is inserted into the tested mobile phone terminal, and the power supply outputs 3.7V voltage; and starting the mobile phone terminal to enter a mode needing to be tested, and registering the mobile phone terminal to a corresponding network and entering a standby state. In the actual network test of embodiment 1, the mobile phone terminal needs to be registered in the actual mobile communication network, the multimeter is used for striking an average mA gear, and the AVG mode is set; and setting parameters of PC side software of the data acquisition unit, and starting a program for acquiring voltage by the data acquisition unit to perform standby current test.
The selection of the sampling resistance value can be flexibly adjusted according to the requirement of precision, 1 ohm resistance is generally selected for the convenience of calculation, if the requirement on the precision is higher, 0.1 ohm resistance can be selected, the influence of the 0.1 ohm sampling resistance on the whole circuit is smaller than that of the 1 ohm sampling resistance, and the test result is better.
In embodiment 2, in the standby current testing process in an ideal network, the acquisition process of the standby current by the data acquisition device is the same as the actual network measurement, except that:
for the GSM mode, the GSM integrated tester is used to simulate an actual GSM network, BS _ PA _ MFRMS of the integrated tester is set to 2 (parameter range 2-9), T3212 is set to 0, because the mobile phone terminal to be tested should normally enter a standby state, paging reorganization needs to be set to off in the standby current test process, the influence of BCCH (broadcast control channel) carrier strength on GSM standby current is small, and the BCCH value is set to-55 dB for test uniformity. When testing, the necessary SIM card is inserted into the mobile phone terminal, the mobile phone terminal is connected with the integrated tester through the radio frequency cable, the mobile phone terminal is started to enter a GSM mode, and after the mobile phone terminal enters a standby state, a program of collecting voltage by the data collector is started to test the standby current.
For the TD mode, similar to the GSM mode, the TD-SCDMA simulator is used to simulate the actual TD network, and the Cellpower value is set to-70 dBm for the uniformity of the test. During testing, a necessary USIM card is plugged in the mobile phone terminal, the mobile phone terminal is connected with the comprehensive tester through a radio frequency cable, the mobile phone terminal is started to enter a TD mode, and after the mobile phone terminal is registered in a TD network and enters a standby (idle) state, a program of a data collector for collecting voltage is started to test standby current.
In the process of testing the standby current without the network in embodiment 3, the process of acquiring the standby current by the data acquisition device is the same as the actual network measurement, and during the test, the necessary test card (SIM/USIM card) is inserted into the tested mobile phone terminal, and the tested mobile phone terminal is put into the shielding box to work in the network-free state of the tested mode, and after the tested mobile phone terminal is started up to reach the stable state, the program of acquiring the voltage by the data acquisition device is started to test the standby current.
In the above 3 embodiments, after the specified test time, the PC side automatically stores the voltage data of the whole standby process, and the current value can be obtained according to the relation formula I of current and voltage as U/R, and the average standby current value is obtained by integrating and averaging
Therefore, the standby current condition in the mode can be obtained visually by drawing by using a data analysis tool. And the average standby current value measured by the multimeter can be compared with the average standby current value measured by the data collector, and the average standby current values can be verified mutually and also can be used as a reference.
The test methods under different test requirements are set forth above, so that the flexibility of the test scheme of the invention is embodied, meanwhile, the data acquisition unit can record the change of the standby current of the tested mobile phone terminal in a short time interval in real time, and the change of each state detail of the tested mobile phone terminal can be intuitively mastered by processing the recorded data, so that the test scheme is simple and accurate.
The method for testing the standby current of the mobile phone can be applied to the standby current test of the mobile phones of GSM, TD-SCDMA, CDMA, WCDMA and PHS modes, or the dual-mode mobile phone terminal combined by the modes, and can also be popularized to the test of the mobile phone terminals of other modes.
The method for testing the standby current of the mobile phone terminal is also suitable for various other mobile terminals with communication functions, such as a palm computer PDA with a mobile phone function, a vehicle-mounted communication mobile terminal and the like.
The present invention has been described in terms of the preferred embodiment, but it is not limited thereto, and various modifications and changes can be made by those skilled in the art. Therefore, any modification, equivalent replacement, improvement, and updating made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A test system for standby current of a mobile terminal is characterized by comprising a sampling resistor, a universal meter, a power supply, the mobile terminal and a data acquisition unit, wherein the sampling resistor, the universal meter, the power supply and the mobile terminal are connected in series to form a test loop, and the data acquisition unit is connected with the sampling resistor in parallel.
2. The test system of claim 1, wherein the test system further comprises a comprehensive tester coupled to the mobile terminal.
3. The test system of claim 2, wherein the integrated tester is a base station simulator connected to the mobile terminal through a radio frequency cable for generating network signals under an ideal network.
4. The test system of claim 1, wherein the test system further comprises a shield box to shield the mobile terminal therein.
5. The test system of any one of claims 1 to 4, wherein the data collector is configured to collect and record voltages at two ends of the sampling resistor in real time, obtain a current value according to a relationship formula of current and voltage, I-U/R, and perform integral averaging on the current value
An average standby current value is obtained.
6. The test system according to any one of claims 1 to 4, wherein the sampling resistor is a precision resistor with a known resistance value, and the resistance value of the sampling resistor is selected to be 1 ohm or selected to be 0.1 ohm according to the requirement of precision.
7. A standby current testing method based on the testing system of any one of claims 1 to 4, characterized by comprising the following steps:
(1) placing the mobile terminal in a test network environment, and starting the mobile terminal to enter a standby state;
(2) starting a test, acquiring voltages at two ends of a sampling resistor connected with the mobile terminal in series by a data acquisition unit in real time, and storing voltage data of the whole standby measurement process;
(3) after the measurement is finished, obtaining the real-time standby current value in the whole standby process according to the relation formula I of current and voltage, namely U/ROver-integral averagingAnd further obtaining the average standby current value in the standby measurement process.
8. The testing method of claim 7, wherein the step (3) further comprises:
and drawing by using a data analysis tool according to the real-time standby circuit data to obtain the real-time standby current visual condition of the mobile terminal in the standby mode.
9. The testing method of claim 7, wherein the network environment in step (1) is an actual network environment, an ideal network environment, or a network-less environment; wherein,
the actual network environment refers to a network of GSM, TD-SCDMA, CDMA, WCDMA or PHS system;
the ideal network environment is a GSM, TD-SCDMA, CDMA, WCDMA or PHS network simulated by the integrated tester connected with the mobile terminal;
the network-free environment refers to an environment without any network signal, which is obtained by shielding the mobile terminal in a shielding box.
10. The testing method of claim 7, wherein in the step (2), after the data collector collects and records the voltages at two ends of the sampling resistor in real time, a real-time standby current value is obtained according to a relation formula I of current and voltage, and the standby current value is subjected to integral averageAn average standby current value is obtained.
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| CN2007101517871A CN101399864B (en) | 2007-09-29 | 2007-09-29 | Test system and method for standby current of mobile terminal |
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| CN2007101517871A CN101399864B (en) | 2007-09-29 | 2007-09-29 | Test system and method for standby current of mobile terminal |
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- 2007-09-29 CN CN2007101517871A patent/CN101399864B/en not_active Expired - Fee Related
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| CN105635388A (en) * | 2016-01-05 | 2016-06-01 | 广东欧珀移动通信有限公司 | Method and equipment for testing current of intelligent terminal |
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| CN114167132A (en) * | 2022-02-10 | 2022-03-11 | 为准（北京）电子科技有限公司 | Power consumption detection method and device of wireless terminal, electronic equipment and storage medium |
| CN114167132B (en) * | 2022-02-10 | 2022-04-29 | 为准（北京）电子科技有限公司 | Power consumption detection method and device of wireless terminal, electronic equipment and storage medium |
| CN117706174A (en) * | 2023-06-30 | 2024-03-15 | 荣耀终端有限公司 | Standby current testing method and electronic equipment |
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