CN114258067A - A method for detecting reliability of wireless communication module of electronic equipment - Google Patents
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Abstract
本发明公开了一种检测电子设备无线通信模块可靠性的方法，属于无线通信测试技术领域，包括如下步骤：将被测设备安装到测试系统中，设置好测试环境温度，待温度稳定后，调试仪表并设定好测试参数；启动测试系统，测试被测设备无线通信模块的可靠性；通过分析不同温度下的测试数据，结合被测设备的实际工作环境和官方发布的相关标准，对被测设备的无线通信模块进行系统性的评价。通过改变温度来测量不同温度环境下，被测设备的无线通信模块的辐射可靠性、接收可靠性、解译码可靠性以及长时间工作情况下的可靠性，对该设备无线通信模块的可靠性进行系统性的评价，给出该设备无线通信模块的理想工作参数，帮助优化该设备的产品设计。
The invention discloses a method for detecting the reliability of a wireless communication module of an electronic device, belonging to the technical field of wireless communication testing. Instrument and set the test parameters; start the test system to test the reliability of the wireless communication module of the device under test; analyze the test data at different temperatures, combine the actual working environment of the device under test and the relevant standards issued by the government, and test the reliability of the device under test. The wireless communication module of the device is systematically evaluated. By changing the temperature to measure the radiation reliability, reception reliability, decoding reliability and reliability of the wireless communication module of the device under test under different temperature environments, as well as the reliability under long-term operation, the reliability of the wireless communication module of the device A systematic evaluation is carried out, and the ideal working parameters of the wireless communication module of the device are given to help optimize the product design of the device.
Description
Technical Field
The invention relates to the technical field of wireless communication test, in particular to a method for detecting the reliability of a wireless communication module of electronic equipment.
Background
In the civil field, the reliability of the wireless communication module of the device generally only affects the user experience. Along with the development of automatic driving technology, low no-load people technology, unmanned aerial vehicle and other technologies, and the large-scale popularization of household intelligent equipment. The reliability of the wireless communication module of the device affects the user experience and is also related to the life safety of passengers. In the traditional civil wireless communication detection, the detection scheme of the equipment reliability is not sound, and in order to cope with the influence brought by the complex working environment, a method for detecting the equipment wireless communication module reliability is necessary to be designed.
To this end, we propose a method for detecting the reliability of the wireless communication module of the electronic device to solve the above problem.
Disclosure of Invention
The present invention is directed to a method for detecting the reliability of a wireless communication module of an electronic device, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a method for detecting the reliability of a wireless communication module of an electronic device comprises the following steps:
A. installing the tested equipment in a test system, setting the test environment temperature, debugging the instrument and setting test parameters after the temperature is stable;
B. starting a test system and testing the reliability of the wireless communication module of the tested equipment;
C. the wireless communication module of the tested equipment is systematically evaluated by analyzing the test data at different temperatures and combining the actual working environment of the tested equipment and related standards issued by the authorities.
In a preferred embodiment, in step B, the reliability detection of the wireless communication module of the device under test includes the following items: detecting the radiation reliability of the wireless communication module; the wireless communication module receives reliability detection; detecting the decoding reliability of the wireless communication module; and detecting the long-time working reliability of the wireless communication module.
In a preferred embodiment, the detecting of the radiation reliability of the wireless communication module includes the following steps:
setting the test environment temperature, the test duration, the test frequency and the interval and step length of the input power to carry out variable frequency and power sweep test;
measuring the intensities and phases of different polarization components of a radiation signal of a wireless communication module of the equipment on a preset detection point by using a probe, and calculating the polarization degree of the signal and the fluctuation of the intensities and phases of the different polarization components;
changing the system test environment temperature, and repeating the measurement until the measurement is finished;
after the measurement is finished, the radiation stability, the radiation sensitivity and the radiation signal polarization degree of the wireless communication module of the equipment to be measured at different temperatures in a set frequency domain are analyzed, and then the radiation reliability of the wireless communication module of the equipment is systematically evaluated by combining the actual working environment of the equipment and the related standards issued by the authorities.
In a preferred embodiment, the wireless communication module receiving the reliability detection includes the following steps:
setting the test environment temperature, the polarization direction, the test duration, the radiation frequency of a radiation source and the interval and step length of input power, and carrying out variable frequency and power sweep test;
measuring the intensity and the phase of microwave signals polarized along different directions received by a wireless communication module of the equipment to be tested, and calculating the receiving efficiency, the receiving sensitivity, the polarization separation degree and the fluctuation condition of the received signals of the equipment;
changing the temperature of the testing environment, and repeating the measurement until the measurement is finished;
after the measurement is finished, the receiving sensitivity, the receiving stability and the change of the polarization separation degree of the wireless communication module of the equipment to be measured at different temperatures in a set frequency domain are analyzed, and then the receiving reliability of the wireless communication module of the equipment is systematically evaluated by combining the actual working environment of the equipment and the related standards issued by the authorities.
In a preferred embodiment, the detecting of decoding reliability of the wireless communication module includes the following steps:
setting the test environment temperature, the test frequency, the interference source, the test duration and the test period, and connecting the tested equipment with the coding library;
enabling the equipment to continuously perform decoding and decoding operations according to a preset instruction sequence of the coding library, and counting the error rate of decoding and decoding of the equipment in the whole test process;
changing the temperature of the testing environment, and repeating the measurement until the measurement is finished;
after the measurement is finished, the variation of the equipment decoding error rate at different temperatures is analyzed, and then the systematic evaluation is carried out on the decoding reliability of the equipment wireless communication module by combining the actual working environment of the equipment and the relevant standards issued by the authorities.
In a preferred embodiment, the detecting of the long-time operation reliability of the wireless communication module includes the following steps:
setting the test environment temperature, test frequency, interference source, test duration and period, and enabling the equipment to continuously receive and transmit signals in the test duration;
reading receiving and signaling values in real time, and counting the stability of the equipment receiving and transmitting signals in the test time;
changing the temperature of the testing environment, and repeating the measurement until the measurement is finished;
after the measurement is finished, the change relation of the fluctuation conditions of the receiving and the signaling of the equipment along with the temperature is read, and then the long-time working reliability of the wireless communication module of the equipment is systematically evaluated by combining the actual working environment of the equipment and the related standards issued by the authorities.
In a preferred embodiment, the test system comprises:
the microwave shielding system is used for shielding external electromagnetic signal interference;
the temperature control system is used for controlling the temperature of the test equipment or the test environment and consists of a compressor, a heater, a direct-current power supply, a temperature detector and heat insulation cotton;
the detection probe is used for detecting microwave signals radiated by the equipment;
a radiation source for radiating a microwave signal to the device;
an interference source for implementing interference to the system;
the test instrument is used for controlling the emission and reading of signals;
the computer is used for controlling the running of the test program, accessing data and processing data;
the power supply control system is used for supplying power to the whole equipment;
and the interface control conversion system is used for converting the equipment interface when different equipment is connected into the test system.
In a preferred embodiment, the computer customizes the test flow for different test devices through a computer program.
An embodiment of preferred, by test equipment including cell-phone, router, mobile computer, panel computer, satellite phone, intelligent audio amplifier, unmanned aerial vehicle, basic station antenna, satellite antenna, wireless bluetooth mouse, keyboard, remote control, intelligent household electrical appliances wifi and bluetooth module, desktop host computer wifi and bluetooth module, sharing bicycle wifi and bluetooth module, the wireless communication, GPS, microwave radar, wifi and the bluetooth module of car, electric motor car. .
The invention has the beneficial effects that:
1. the radiation reliability, the receiving reliability, the decoding reliability and the reliability under the long-time working condition of the wireless communication module of the tested device under different temperature environments are measured by changing the temperature. By analyzing the changes of the radiation signal intensity and amplitude of the wireless communication module of the device to be tested along with the temperature, the changes of the received signal intensity and amplitude along with the temperature, the changes of decoding error rate along with the temperature and the stable condition of long-time work under different working frequency bands, combining the actual working environment of the device and referring to the relevant standards issued by the authorities, the reliability of the wireless communication module of the device is systematically evaluated, the ideal working parameters of the wireless communication module of the device are given, the product design of the device is helped to be optimized, and the consumer is better served;
2. the detection method is simple and clear, has strong operability and has popularization value.
Drawings
Fig. 1 is a schematic diagram of a method for detecting reliability of a wireless communication module of an electronic device according to an embodiment of the present invention.
Fig. 2 is a flow chart of a radiation reliability test of a wireless communication module according to an embodiment of the present invention.
Fig. 3 is a flow chart of a wireless communication module reception reliability test according to an embodiment of the present invention.
Fig. 4 is a decoding reliability testing process of the wireless communication module according to the embodiment of the invention.
Fig. 5 is a flow chart of testing long-time working reliability of a wireless communication module according to an embodiment of the present invention.
Fig. 6 is a flowchart of testing radiation and reception reliability of a smart phone according to an embodiment of the present invention.
Fig. 7 is a flow of testing solution and decoding reliability and long-term working reliability of the smart phone according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): the invention provides a method for detecting the reliability of a wireless communication module of electronic equipment, which refers to fig. 1 and is a test flow of an implementation case of the radiation reliability of the wireless communication module of the equipment, wherein the implementation case specifically comprises the following test steps:
P1S 1: checking the running state of the detection system, after the system can run normally, installing the equipment to be detected on an equipment bracket in the system, connecting the equipment to be detected with the cable, and simultaneously checking the conduction condition of the cable to ensure that the conduction state between the cable and the equipment is good;
P1S 2: starting a temperature control module of the detection system, setting the system temperature, waiting for the system temperature to be stable, and ensuring that the system temperature reaches a preset value, and the temperature fluctuation is smaller than a preset range, for example, the temperature fluctuation of a low-temperature sensitive environment can be 1 ℃ and the temperature fluctuation of a high-temperature sensitive device can be smaller than 0.1 ℃;
P1S 3: the matching instrument ensures that the impedance between the testing instrument and the equipment can be completely matched, and simultaneously inputs the testing frequency, the testing power interval and step length as well as the testing duration, so that the input testing frequency is in the frequency range in which the equipment can work, most of power values adopted by the testing power can drive the wireless communication module of the equipment to work, and the maximum value of the input power cannot damage the equipment;
P1S 4: starting a test system, carrying out power sweep test according to a set power step length and test duration, and recording input power P at different moments0And the intensity P of the microwave signals received on different polarization planes is read by a polarization probe at a detection pointHAnd PVAnd phase SHAnd SV；
P1S 5: recording the read data, and calculating the radiation efficiency of the wireless communication module of the equipment:
a is an attenuation coefficient related to the size and mounting position of the probe; calculating the radiation polarization degree of the equipment:
average of received microwave signal intensities on different polarization planes:
and
the fluctuation values of the microwave signal intensity received on different polarization planes are as follows:
maximum fluctuation value of the received microwave signal intensity on different polarization planes:
average of the phases of the received microwave signals on different polarization planes:
and
the fluctuation values of the phases of the received microwave signals on different polarization planes are as follows:
maximum fluctuation values of the phases of the received microwave signals on different polarization planes:
the relation curve, eta-P, of the radiation efficiency and the input power of the wireless communication module of the equipment can be obtained through the detected data0The radiation sensitivity P of the wireless communication module of the equipment under the frequency point can be obtained through the curver(ii) a While processing data, adjusting the equipment to the next testing frequency point, and repeating P1S3, P1S4 and P1S5 until all the frequencies are tested completely;
P1S 6: after all the preset test frequency points are tested, switching the environmental temperature, and repeating P1S2, P1S3, P1S4 and P1S5 until all the temperatures are tested;
P1S 7: after all tests are completed, the radiation efficiency, the fluctuation value of the radiation signal intensity and the phase and the radiation sensitivity of the wireless communication module of the equipment under different temperatures and different radiation frequencies can be obtained, the reasonable design standard of the wireless communication module of the equipment can be obtained by combining the actual working environment of the equipment and corresponding standard files, then the detection result and the standard value are compared and analyzed to obtain a corresponding chart, and a detection report of the radiation reliability of the wireless communication module of the equipment is generated.
Referring to fig. 2, a test procedure of an embodiment of the present invention for receiving reliability of a wireless communication module of a device specifically includes the following test steps:
P2S 1: checking the running state of the detection system, after the system can run normally, installing the equipment to be detected on an equipment bracket in the system, connecting the equipment to be detected with the cable, and simultaneously checking the conduction condition of the cable to ensure that the conduction state between the cable and the equipment is good;
P2S 2: starting a temperature control module of the detection system, setting the system temperature, waiting for the system temperature to be stable, and ensuring that the system temperature reaches a preset value and the temperature fluctuation is smaller than a preset range;
P2S 3: the matching instrument ensures that the impedance between the test instrument and the equipment can be completely matched, and simultaneously inputs the test frequency, the test power interval, the step length and the test duration to ensure that the input test frequency is in the receivable frequency range of the equipment, most of the power value adopted by the test power can be received by the wireless communication module of the equipment, and meanwhile, the maximum value of the radiation power cannot damage the equipment;
P2S 4: starting a test system, carrying out power sweep test according to a set step length and test duration, and recording input power P at different moments0And the polarization direction output by the radiation source, and reading the intensity P of the microwave signals on different polarization planes received by the wireless communication module of the deviceHAnd PVAnd phase SHAnd SV；
P2S 5: and recording the read data, and calculating the receiving efficiency of the wireless communication module of the equipment on microwave signals with different polarizations:
a is an attenuation coefficient related to the size and mounting position of the radiation source; calculating a polarization separation degree of a device wireless communication module:
the device wireless communication module receives the average value of the microwave signal intensities of different polarizations:
and
fluctuation value of the signal intensity:
maximum fluctuation value of the signal intensity:
average of the signal phase:
and
fluctuation value of the signal phase:
maximum fluctuation value of the signal phase:
obtaining a relation curve, eta, of the receiving efficiency and the input power of the wireless communication module of the equipmentH-P0，ηV-P0A curve through which the receiving sensitivity P of the wireless communication module of the equipment under the frequency point can be obtaineda(ii) a Switching the equipment to the next testing frequency point while processing the data, and repeating the P2S3, the P2S4 and the P2S5 until all the frequencies are tested;
P2S 6: after all the preset test frequency points are tested, switching the environmental temperature, and repeating the P2S2, the P2S3, the P2S4 and the P2S5 until all the temperatures are tested;
P2S 7: after all tests are completed, the receiving efficiency of the equipment wireless communication module to microwave signals with different polarizations under different temperatures and different receiving frequencies, the fluctuation values of the received signal strength and phase and the receiving sensitivity of the equipment wireless communication module can be obtained, the reasonable design standard of the equipment wireless communication module can be obtained by combining the actual working environment of the equipment and the corresponding standard file, then the detection result and the standard value are compared and analyzed to obtain a corresponding chart, and a detection report of the receiving reliability of the equipment wireless communication module is generated.
Referring to fig. 3, a test procedure of an implementation case of the reliability of decoding and solution of the wireless communication module of the device of the present invention is shown, the decoding and solution tests can be performed step by step or simultaneously, and the test procedure is explained by simultaneous measurement, wherein the implementation case specifically includes the following test steps:
P3S 1: checking the running state of the detection system, after the system can run normally, installing the equipment to be detected on an equipment bracket in the system, connecting the equipment to be detected with the cable, and simultaneously checking the conduction condition of the cable to ensure that the conduction state between the cable and the equipment is good;
P3S 2: starting a temperature control module of the detection system, setting the system temperature, waiting for the system temperature to be stable, and ensuring that the system temperature reaches a preset value and the temperature fluctuation is smaller than a preset range;
P3S 3: the matching instrument ensures that the impedance between the test instrument and the equipment can be completely matched, sets interference intensity of an interference source and connects the coding library to the equipment, and the coding library can be divided into a short code coding library, a long code coding library, a mixed coding library and a custom coding library according to different test objects;
P3S 4: starting the test system and the interference source, enabling the equipment to smoothly and continuously receive and send the instruction codes according to the preset instructions of the code library, monitoring the accuracy of the received and sent instructions in real time by using a computer, and counting the number N of errors of the received and sent instructions in the testr，NsIf the total number of instructions in the code library is N, the error rate of decoding and decoding of the wireless communication module of the device can be obtained:
P3S 5: if the device has test requirements of other instruction sets, the coding library can be switched more actually, and P3S3 and P3S4 are repeated;
P3S 6: after all the coding library tests are finished, switching the environmental temperature, and repeating the steps of P3S2, P3S3, P3S4 and P3S5 until all the temperatures are completely tested;
P3S 7: after all temperature tests are completed, the error rates of the equipment for decoding and solving different coding libraries at different temperatures can be obtained, the reasonable design standard of the equipment can be obtained by combining the actual working environment of the equipment and the relevant standard file, the detection result and the relevant standard are compared, and a comparison chart of the two and a test report of the reliability of decoding and solving of the wireless communication module of the equipment can be obtained.
Referring to fig. 4, a testing process of an embodiment of the reliability of the wireless communication module of the device in the invention during long-time operation is shown, and the embodiment specifically includes the following testing steps:
P4S 1: checking the running state of the detection system, after the system can run normally, installing the equipment to be detected on an equipment bracket in the system, connecting the equipment to be detected with the cable, and simultaneously checking the conduction condition of the cable to ensure that the conduction state between the cable and the equipment is good;
P4S 2: starting a temperature control module of the detection system, setting the system temperature, waiting for the system temperature to be stable, and ensuring that the system temperature reaches a preset value and the temperature fluctuation is smaller than a preset range;
P4S 3: the matching instrument ensures that the impedance between the test instrument and the equipment can be completely matched, and simultaneously inputs the interference intensity, the test frequency, the test power and the test duration to ensure that the test frequency is in the ideal working frequency range of the equipment and the test power is the optimal power value of the wireless communication module of the equipment;
P4S 4: starting the test system and the interference source to make the equipment continuously receive and send signals, actually recording different polarization components of the microwave signal radiated by the equipment, and recording the intensities of the different polarization components of the microwave signal radiated to the detection point as PH,sAnd PV,sThe phase is denoted as SH,sAnd SV,sAnd receiving microwave signals in different polarization directions, the intensity and phase being respectively recorded as PH,r、PV,r、SH,r、SV,r(ii) a Assuming that the strength and phase of continuous receiving and signaling in the time period are
By the formula
And
the fluctuation value and the maximum fluctuation value of the measured signal intensity and phase and the polarization separation degree of the equipment can be obtained;
P4S 5: after the measurement duration is reached, switching the ambient temperature, and repeating the steps of P4S2, P4S3 and P4S4 until all the temperatures are completely tested;
P4S 6: after all temperature tests are completed, the fluctuation conditions of the intensity and the phase of the radiation and receiving signals and the polarization separation degree of the equipment in long-time working at different temperatures can be obtained, the reasonable design standard of the equipment can be obtained by combining the actual working environment of the equipment and the relevant standard file, and the test report of the long-time working reliability of the wireless communication module of the equipment can be obtained by comparing the detection result with the relevant standard.
It should be noted that, if a crash situation occurs during the test, the working state of the device is recorded in time, such as: testing the environmental temperature, the working time of the test to halt, the intensity and the phase of the radiated or received signal, the polarization degree of the corresponding signal and the like; and writing the result on a final report as part of the confidence and final evaluation of the wireless communication module of the device.
The detection device of the present invention comprises:
the microwave shielding system is used for shielding external electromagnetic signal interference, such as an anechoic chamber, an electric wave reverberation chamber and the like;
the temperature control system controls the temperature of the test equipment or the test environment and consists of a compressor, a heater, a direct-current power supply, a temperature detector and heat insulation cotton;
the detection probe detects microwave signals radiated by the equipment;
the radiation source is controlled by the instrument and radiates microwave signals to the equipment;
an interference source that interferes with the system;
the test instrument controls the emission and reading of signals;
and the computer controls the running of the test program, accesses data and processes data.
The power supply control system supplies power to the whole equipment;
and the interface control conversion system is used for converting the equipment interface when different equipment is connected into the test system.
The test equipment comprises: the system comprises a mobile phone, a router, a mobile computer, a tablet personal computer, a satellite phone, an intelligent sound box, a small unmanned aerial vehicle, a base station antenna, a satellite antenna, a wireless Bluetooth mouse, a keyboard, a remote controller, an intelligent household appliance wifi and Bluetooth module, a desktop host wifi and Bluetooth module, a shared bicycle wifi and Bluetooth module, wireless communication of automobiles and electric vehicles, a GPS, a microwave radar, a wifi and a Bluetooth module; these devices may be connected to the test equipment through a reserved interface on the equipment, or through a specially designed adapter board in the test equipment.
In order to improve the testing efficiency in practical applications, a testing scheme of synchronous measurement may be adopted, and a testing procedure of the reliability of the wireless communication module of the device in a practical testing scene is described below by taking a smart phone as an example.
Referring to fig. 5, a test flow of an implementation case of the radiation and reception reliability of the wireless communication module of the smart phone of the present invention is shown, and the implementation case specifically includes the following test steps:
P5S 1: checking the running state of the detection system, after the system can run normally, installing the mobile phone on an equipment support in the system, connecting the mobile phone with a cable, and simultaneously checking the conduction condition of the cable to ensure that the conduction state between the cable and the mobile phone is good;
P5S 2: starting a temperature control module of the detection system, setting the system temperature, waiting for the system temperature to be stable, and ensuring that the system temperature reaches a preset value and the temperature fluctuation is smaller than a preset range;
P5S 3: the matching instrument ensures that the impedance between the test instrument and the mobile phone can be completely matched, and simultaneously inputs the test frequency, the test power interval, the step length and the test duration to ensure that the input test frequency is in the range of the receiving and transmitting frequencies of the mobile phone, most of the power values adopted by the test power can be in the working range of the mobile phone, and the maximum value of the test power can not damage the mobile phone;
P5S 4: performing power sweep test according to the set step length and test duration, and recording the input power P at different times0,rAnd the intensity P of the microwave signals received on different polarization planes is read by a polarization probe at a detection pointH,rAnd PV,rAnd phase SH,rAnd SV,r；
P5S 5: controlling an electronic switch to switch the mobile phone to a receiving mode, starting a radiation source, carrying out power sweeping test according to a set step length and a test duration, and recording input power P at different moments0,sAnd the polarization direction output by the radiation source, and reading the intensity P of the microwave signals on different polarization planes received by the mobile phoneH,sAnd PV,sAnd phase SH,sAnd SV,s；
P5S 6: recording data, and calculating the radiation efficiency, the radiation polarization degree, the instant fluctuation value and the maximum fluctuation value of the radiation signal intensity and the phase, the radiation sensitivity, the receiving efficiency, the polarization separation degree, the instant fluctuation value and the maximum fluctuation value of the receiving signal intensity and the phase and the receiving sensitivity of the mobile phone according to the above, and simultaneously repeating the test frequency of the switching system with P5S3, P5S4 and P5S 5;
P5S 7: after all the preset test frequency points are tested, switching the environmental temperature, and repeating the steps of P5S2, P5S3, P5S4, P5S5 and P5S6 until all the temperatures are tested;
P5S 8: after all tests are finished, evaluating the mobile phone wireless communication module according to the test standard published by the official or the production standard of the mobile phone manufacturer, listing the comparison conditions of the measured values and the standard values at different temperatures in a chart form, listing qualified and unqualified test items in columns in a table form, and obtaining a reliability test report of the radiation and receiving signals of the mobile phone wireless communication module;
referring to fig. 6, a test flow of an implementation case of the solution and decoding reliability and long-term working reliability of the wireless communication module of the smart phone of the present invention is shown, and the implementation case specifically includes the following test steps:
P6S 1: checking the running state of the detection system, after the system can run normally, installing the mobile phone on an equipment support in the system, connecting the mobile phone with a cable, and simultaneously checking the conduction condition of the cable to ensure that the conduction state between the cable and the mobile phone is good;
P6S 2: starting a temperature control module of the detection system, setting the system temperature, waiting for the system temperature to be stable, and ensuring that the system temperature reaches a preset value and the temperature fluctuation is smaller than a preset range;
P6S 3: the matching instrument ensures that the impedance between the test instrument and the mobile phone can be completely matched, and simultaneously inputs the test frequency, the test power and the test duration to ensure that the test frequency is within the ideal working frequency range of the equipment and the test power is the optimal power value of the wireless communication module of the equipment;
P6S 4: connecting the mobile phone to the coding library, starting the system, and enabling the mobile phone to continuously transmit and receive information;
P6S 5: reading the intensity and phase of the signal received and transmitted by the mobile phone, monitoring the accuracy of the solution and decoding of the mobile phone by using a computer, and calculating the fluctuation of the intensity and phase of the signal received and transmitted by the mobile phone, the change of the polarization degree and the polarization separation degree and the error rate of the solution and decoding according to the above calculation formula;
P6S 6: after the test is finished, switching the test environment temperature, and repeating the steps of P6S3, P6S4 and P6S5 until all the temperatures are completely tested;
P6S 7: after all tests are finished, evaluating the mobile phone wireless communication module according to the test standard published by the official or the production standard of the mobile phone manufacturer, listing the comparison conditions of the measured values and the standard values at different temperatures in a chart form, listing qualified and unqualified test items in columns in a table form, and obtaining a test report of the long-time working reliability and the decoding reliability of the mobile phone wireless communication module.
And after the test report is obtained, comprehensively evaluating the reliability of the mobile phone wireless communication module by referring to the test result, and giving optimal working parameters and optimization suggestions.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A method for detecting the reliability of a wireless communication module of an electronic device is characterized by comprising the following steps:
A. installing the tested equipment in a test system, setting the test environment temperature, debugging the instrument and setting test parameters after the temperature is stable;
B. starting a test system and testing the reliability of the wireless communication module of the tested equipment;
C. the wireless communication module of the tested equipment is systematically evaluated by analyzing the test data at different temperatures and combining the actual working environment of the tested equipment and related standards issued by the authorities.
2. The method of claim 1, wherein the step of detecting the authenticity of the wireless communication module of the electronic device comprises: in step B, the reliability detection of the wireless communication module of the device under test includes the following items: detecting the radiation reliability of the wireless communication module; the wireless communication module receives reliability detection; detecting the decoding reliability of the wireless communication module; and detecting the long-time working reliability of the wireless communication module.
3. The method for detecting the reliability of the wireless communication module of the electronic device as claimed in claim 2, wherein the wireless communication module radiation reliability detection comprises the steps of:
setting the test environment temperature, the test duration, the test frequency and the interval and step length of the input power to carry out variable frequency and power sweep test;
measuring the intensities and phases of different polarization components of a radiation signal of a wireless communication module of the equipment on a preset detection point by using a probe, and calculating the polarization degree of the signal and the fluctuation of the intensities and phases of the different polarization components;
changing the system test environment temperature, and repeating the measurement until the measurement is finished;
after the measurement is finished, the radiation stability, the radiation sensitivity and the radiation signal polarization degree of the wireless communication module of the equipment to be measured at different temperatures in a set frequency domain are analyzed, and then the radiation reliability of the wireless communication module of the equipment is systematically evaluated by combining the actual working environment of the equipment and the related standards issued by the authorities.
4. The method of claim 2, wherein the wireless communication module receiving the reliability detection comprises:
setting the test environment temperature, the polarization direction, the test duration, the radiation frequency of a radiation source and the interval and step length of input power, and carrying out variable frequency and power sweep test;
measuring the intensity and the phase of microwave signals polarized along different directions received by a wireless communication module of the equipment to be tested, and calculating the receiving efficiency, the receiving sensitivity, the polarization separation degree and the fluctuation condition of the received signals of the equipment;
changing the temperature of the testing environment, and repeating the measurement until the measurement is finished;
after the measurement is finished, the receiving sensitivity, the receiving stability and the change of the polarization separation degree of the wireless communication module of the equipment to be measured at different temperatures in a set frequency domain are analyzed, and then the receiving reliability of the wireless communication module of the equipment is systematically evaluated by combining the actual working environment of the equipment and the related standards issued by the authorities.
5. The method as claimed in claim 2, wherein the step of detecting the reliability of the wireless communication module of the electronic device comprises the steps of:
setting the test environment temperature, the test frequency, the interference source, the test duration and the test period, and connecting the tested equipment with the coding library;
enabling the equipment to continuously perform decoding and decoding operations according to a preset instruction sequence of the coding library, and counting the error rate of decoding and decoding of the equipment in the whole test process;
changing the temperature of the testing environment, and repeating the measurement until the measurement is finished;
after the measurement is finished, analyzing the change of the error rate of decoding and decoding of the equipment along with the temperature, and then systematically evaluating the reliability of decoding and decoding of the wireless communication module of the equipment by combining the actual working environment of the equipment and the relevant standards issued by the authorities.
6. The method for testing the reliability of the wireless communication module of the electronic device as claimed in claim 2, wherein the testing the reliability of the wireless communication module for long-term operation comprises the following steps:
setting the test environment temperature, test frequency, interference source, test duration and period, and enabling the equipment to continuously receive and transmit signals in the test duration;
reading receiving and signaling values in real time, and counting the stability of the equipment receiving and transmitting signals in the test time;
changing the temperature of the testing environment, and repeating the measurement until the measurement is finished;
after the measurement is finished, the change relation of the fluctuation conditions of the receiving and the signaling of the equipment along with the temperature is read, and then the long-time working reliability of the wireless communication module of the equipment is systematically evaluated by combining the actual working environment of the equipment and the related standards issued by the authorities.
7. The method of claim 1, wherein the test system comprises:
the microwave shielding system is used for shielding external electromagnetic signal interference;
the temperature control system is used for controlling the temperature of the test equipment or the test environment and consists of a compressor, a heater, a direct-current power supply, a temperature detector and heat insulation cotton;
the detection probe is used for detecting microwave signals radiated by the equipment;
a radiation source for radiating a microwave signal to the device;
an interference source for implementing interference to the system;
the test instrument is used for controlling the emission and reading of signals;
the computer is used for controlling the running of the test program, accessing data and processing data;
the power supply control system is used for supplying power to the whole equipment;
and the interface control conversion system is used for converting the equipment interface when different equipment is connected into the test system.
8. The method of claim 7, wherein the step of detecting the authenticity of the wireless communication module of the electronic device comprises: the computer customizes the testing process by a computer program aiming at different testing devices.
9. The method of claim 1, wherein the step of detecting the authenticity of the wireless communication module of the electronic device comprises: by test equipment including cell-phone, router, mobile computer, panel computer, satellite phone, intelligent audio amplifier, unmanned aerial vehicle, basic station antenna, satellite antenna, wireless bluetooth mouse, keyboard, remote control, intelligent household electrical appliances wifi and bluetooth module, desktop host computer wifi and bluetooth module, sharing bicycle wifi and bluetooth module, the radio communication of car, electric motor car, GPS, microwave radar, wifi and bluetooth module.
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