CN110601776B - Vehicle-mounted wireless module performance test method and system - Google Patents
Vehicle-mounted wireless module performance test method and system Download PDFInfo
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- CN110601776B CN110601776B CN201910852867.2A CN201910852867A CN110601776B CN 110601776 B CN110601776 B CN 110601776B CN 201910852867 A CN201910852867 A CN 201910852867A CN 110601776 B CN110601776 B CN 110601776B
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- H04B17/00—Monitoring; Testing
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- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/30—Monitoring; Testing of propagation channels
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Abstract
The invention relates to the technical field of wireless module testing, in particular to a method and a system for testing the performance of a vehicle-mounted wireless module. The method comprises the following steps: sending a wireless signal to a closed environment where equipment to be tested is located, establishing wireless connection with the equipment to be tested, and acquiring first strength information; acquiring real-time intensity information of the position of equipment to be tested; sending a wireless test signal, monitoring response information of equipment to be tested, and acquiring a first test moment; acquiring a first response moment according to response information of the equipment to be tested; obtaining delay information according to the first sending time and the first response time; and respectively calculating and comparing the delay information and the first strength information with a preset delay range and real-time strength information to obtain the performance information of the equipment to be tested. The processing module is used for simultaneously testing the wireless connection strength and the time delay condition of the vehicle-mounted wireless equipment, so that the wireless performance of the vehicle-mounted wireless equipment is accurately determined, the testing efficiency of the performance of the wireless module is greatly improved, the testing precision is improved, and the testing cost is reduced.
Description
Technical Field
The invention relates to the technical field of wireless module testing, in particular to a method and a system for testing the performance of a vehicle-mounted wireless module.
Background
With the increasing complexity and the increasing functionality of the vehicle-mounted multimedia system, the Wi-Fi function also becomes an important function in the vehicle-mounted multimedia system. The Wi-Fi function of the vehicle-mounted multimedia is mainly used for connecting hot spots and providing internet data service for the vehicle-mounted multimedia, and with the increase of automobile entertainment equipment, the performance and stability of a Wi-Fi module of the vehicle-mounted multimedia of a user are more and more important, so that the performance and stability of the Wi-Fi module of the vehicle-mounted multimedia are especially important in the test verification in the development process.
The test of the Wi-Fi function of the vehicle-mounted multimedia system not only needs to detect the connection strength of a sending end and a receiving end, but also needs to test the network smoothness of the wireless connection data transmission. At present, there are several methods for testing the Wi-Fi function of the vehicle-mounted multimedia system, one method is to detect the Wi-Fi function through a WIFI integrated tester, and the WIFI integrated tester can accurately test the performance and stability of the Wi-Fi function, but the cost is high, and the Wi-Fi integrated tester can only be applied to laboratory research and development and cannot be put into an industrial production test chain. And test through simple and easy WIFI integrated tester, the test is not accurate, and can only see signal strength, can't judge whether its network has the time delay condition.
In the workshop production test chain, whether on-vehicle hypersystem can connect the hot spot through the tester observation usually, then manually carry out network communication operation to on-vehicle hypersystem, whether there is the time delay condition observation, test record again, the test procedure need consume a large amount of cost of labor, and the test efficiency is low down, the recording process is numerous and diverse, subjective test error or hourglass inspection very easily appears, the test procedure receives external signal interference easily simultaneously, and can only go on at normal atmospheric temperature, can't carry out the extreme temperature test to the wireless module of mobile unit.
Disclosure of Invention
In order to overcome at least one of the above-mentioned drawbacks (shortcomings) of the prior art, the present invention provides a method and a system for testing the performance of a vehicle-mounted wireless module.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a performance testing method of a wireless module, the performance testing method comprising:
sending a wireless signal to a closed environment where equipment to be tested is located, establishing wireless connection with the equipment to be tested, and acquiring first strength information;
acquiring real-time intensity information of the position of equipment to be tested;
sending a wireless test signal, monitoring response information of equipment to be tested, and acquiring a first test moment;
acquiring a first response moment according to response information of the equipment to be tested;
obtaining delay information according to the first sending time and the first response time;
and respectively calculating and comparing the delay information and the first strength information with a preset delay range and real-time strength information to obtain the performance information of the equipment to be tested.
Further, the sending a wireless signal to the closed environment where the device to be tested is located, establishing wireless connection with the device to be tested, and acquiring the first strength information includes,
sending a wireless signal to the closed environment of the equipment to be tested, and establishing connection with the equipment to be tested;
and acquiring a first intensity signal according to the serial port information of the equipment to be tested.
Further, the acquiring the real-time intensity information of the position of the device to be tested includes,
obtaining feedback information of an intensity analysis module of the position of the equipment to be tested;
and obtaining real-time intensity information according to the feedback information of the intensity analysis module.
Further, the sending the wireless test signal, monitoring the response information of the device to be tested, and acquiring the first test time includes,
acquiring address information of the equipment to be tested according to the serial port information of the equipment to be tested;
and sending a wireless test signal to the equipment to be tested according to the address information of the equipment to be tested, monitoring response information of the equipment to be tested, and obtaining a first test moment according to the sending time.
Further, the obtaining of the delay information according to the first test time and the first response time is specifically,
and calculating the time difference between the first test time and the first response time to obtain the delay information.
Further, the delay information and the first strength information are respectively calculated and compared with a preset delay range and real-time strength information to obtain the performance information of the equipment to be tested,
comparing the delay information with a preset delay range, and judging whether the delay information is in the preset delay range, if so, obtaining first test information as 'test qualified', and if not, obtaining the first test information as 'test unqualified';
calculating and comparing the first strength information with the actual strength information, judging whether the difference value of the first strength information and the actual strength information is within a preset strength range, if so, obtaining second test information as 'test qualified', and if not, obtaining the second test information as 'test unqualified';
and obtaining performance information according to the first test information and the second test information, and recording the test information of the device to be tested in the test process.
Further, the obtaining performance information according to the first test information and the second test information and recording the test information of the test process of the device to be tested specifically include,
judging whether the first test information and the second test information are both qualified:
if yes, the performance information of the wireless module of the equipment to be tested is qualified;
if not, the performance information of the wireless module of the equipment to be tested is unqualified;
recording test information of a test process of the equipment to be tested;
and performing the next operation on the equipment to be tested according to the performance information.
The invention also provides a vehicle-mounted wireless module performance test system, which adopts the vehicle-mounted wireless module performance test method and comprises the following steps,
the wireless sending module is used for sending a wireless signal into the test box;
the intensity analysis module is used for receiving the wireless signals and feeding back wireless signal intensity information to the processing module;
the test box is used for manufacturing a closed test environment and shielding external interference; and
and the processing module is in control connection with the wireless sending module and is used for controlling the test process and calculating and processing the test information in the test process.
Furthermore, the sending module of the wireless sending module and the receiving module of the strength analysis module are both arranged in the test box.
Furthermore, the test box can provide an extreme temperature environment of the device to be tested.
According to the invention, the processing module is used for simultaneously testing the wireless connection strength and the delay condition of the vehicle-mounted wireless equipment, so that the wireless performance of the vehicle-mounted wireless equipment is accurately determined, manual operation and subjective delay operation testing are not required, the automatic testing of the performance of the vehicle-mounted wireless module can be realized, the testing efficiency of the performance of the wireless module is greatly improved, the testing precision is improved, and the testing cost is reduced. Meanwhile, the invention can monitor and record the test process of the vehicle-mounted wireless module in real time, and the test information and the performance information of the product can be clearly known in the test process or after the test process, thereby solving the problem that the test information of the performance test of the wireless module is difficult to record and monitor. In addition, the method can shield external test signals through the test box, can effectively improve the test precision, and the test box can adjust the temperature environment of the vehicle-mounted wireless module, thereby solving the problem that the vehicle-mounted wireless module is difficult to perform performance test monitoring in various environments such as normal temperature, high temperature, low temperature and the like.
Drawings
Fig. 1 is a structural flow chart of a method for testing the performance of a vehicle-mounted wireless module according to an embodiment of the invention.
Fig. 2 is a flowchart illustrating a detailed structure of step S100 according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a detailed structure of step S200 according to an embodiment of the present invention.
Fig. 4 is a flowchart illustrating a detailed structure of step S300 according to an embodiment of the present invention.
Fig. 5 is a flowchart illustrating a detailed step structure of step S600 according to an embodiment of the present invention.
Fig. 6 is a flowchart illustrating a detailed structure of step S630 according to an embodiment of the present invention.
Fig. 7 is a structural diagram of a vehicle-mounted wireless module performance testing system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Examples
Fig. 1 shows a flow chart of the structure of the method for testing the performance of the vehicle-mounted wireless module according to the embodiment.
Specifically, in fig. 1, the device to be tested has a wireless module, and the device to be tested may be a vehicle-mounted multimedia system or other vehicle-mounted devices with a wireless module. The device to be tested is arranged in a closed environment, and is shielded and protected, so that interference of other external signals in the testing process is prevented. Specifically, the closed environment may be provided by a test box, that is, the device to be tested is disposed in the test box, and of course, the closed environment may also be obtained by other suitable devices. Specifically, the test box can adjust the temperature of sealing test environment, guarantees that the equipment that awaits measuring can test under different temperature environment.
Referring to fig. 1, the present embodiment provides a performance testing method for a vehicle-mounted wireless module, where the performance testing method includes:
step S100, sending a wireless signal to a closed environment where the equipment to be tested is located, establishing wireless connection with the equipment to be tested, and acquiring first strength information.
The processing module controls the wireless sending module to send out a wireless signal, so that wireless connection is established with the equipment to be tested, and particularly, the processing module can carry out information communication with the equipment to be tested through the wireless connection between the processing module and the equipment to be tested. The processing module obtains first intensity information of the wireless connection between the equipment to be tested and the wireless sending module, and the first intensity information is used for displaying or embodying the intensity of the connection between the processing module or the wireless sending module and the equipment to be tested, namely the intensity of a wireless signal received by the equipment to be tested.
And S200, acquiring real-time intensity information of the position of the equipment to be tested.
The wireless signal intensity detection device comprises a wireless transmission module, an intensity analysis module and a processing module, wherein the intensity analysis module is used for detecting the intensity of a wireless signal and can perform information interaction with the control module, the intensity analysis module receives the wireless signal sent by the wireless transmission module at the position of the equipment to be detected, carries out intensity analysis on the wireless signal, outputs an analysis result to the processing module, and obtains real-time intensity information of the position of the equipment to be detected, and the real-time intensity information is the actual intensity value of the wireless signal of the position of the equipment to be detected.
Step S300, sending a wireless test signal, monitoring response information of the equipment to be tested, and acquiring a first test moment.
The processing module controls the wireless sending module to send out a wireless detection signal, and obtains a first test time, specifically, the first test time is the sending time of the wireless detection signal. The processing module seeks response information of the equipment to be tested and monitors the response information to detect the delay condition of the wireless connection of the equipment to be tested.
Step S400, acquiring a first response time according to the response information of the device to be tested.
The device to be tested receives the wireless detection signal and carries out feedback response, the processing module monitors response information of the device to be tested, and a first response time is obtained according to the time of the monitored response information. Specifically, the processing module may monitor the response information by receiving feedback through the wireless sending module, and may also monitor in other suitable manners.
And step S500, obtaining delay information according to the first sending time and the first response time.
The processing module processes the first sending time and the first response time, specifically, the processing module calculates a time difference between the first sending time and the first response time to obtain delay information, and at this time, the delay information is a time from sending the wireless test information by the wireless sending module to receiving the response time of the device to be tested. Of course, the processing module may also process the first sending time and the first response time in other suitable manners to obtain corresponding delay information.
S600, calculating and comparing the delay information and the first strength information with a preset delay range and real-time strength information respectively to obtain performance information of the equipment to be tested.
The processing module calculates and compares the delay information with a preset delay range to obtain network delay or communication delay information of wireless connection between the equipment to be tested and the processing module or the wireless sending module, and confirms whether the network delay or the communication delay information is in the preset range, so that whether the delay condition of the equipment to be tested is qualified is determined. Similarly, the processing module calculates and compares the first strength information and the real-time strength information to obtain the connection strength information of the wireless connection between the device to be tested and the processing module or the wireless sending module, and determines whether the connection strength information is within a preset range, so as to determine whether the strength condition of the device to be tested is qualified. The processing module comprehensively calculates and processes the delay condition and the strength condition of the wireless connection of the equipment to be tested to obtain the performance information of the equipment to be tested, namely whether the wireless module of the equipment to be tested is qualified or not. In the testing process, the processing module records the delay information, the first strength information and the strength information of the equipment to be tested in the testing process in real time, so that the wireless performance of the equipment to be tested can be classified and the information in the testing process can be monitored in the later period.
The performance testing method has the advantages that the processing module sends a wireless signal in the testing box through the wireless sending module, establishes wireless connection with the device to be tested in the testing box, obtains the connection strength of the device to be tested through the serial port tool, obtains the delay information of the device to be tested by sending the testing signal to the device to be tested and monitoring the response of the device to be tested, processes the connection strength and the delay information to obtain the performance information of the device to be tested, and records the testing information of the testing process of the device to be tested. The embodiment simultaneously tests the wireless connection strength and the time delay condition of the wireless module of the product or the equipment, thereby accurately determining the wireless performance of the wireless module, without manual operation and subjective time delay operation test, realizing the automatic test of the performance of the wireless module of the product, greatly improving the test efficiency of the performance of the wireless module, improving the test precision and reducing the test cost. Meanwhile, the embodiment can monitor the test process in real time and record the test process in the later period, so that the test information and the performance information of the product can be conveniently and clearly known, and the problem that the test information of the performance test of the wireless module is difficult to record and monitor is solved. In addition, this embodiment can adjust the temperature environment of the equipment that awaits measuring through the test box, has solved the performance test control difficult problem of on-vehicle wireless module in various environment reliability experiments such as normal atmospheric temperature, high temperature, low temperature.
Fig. 2 shows a flowchart of a detailed step structure of step S100 of the present embodiment.
In some embodiments, as shown in fig. 2, step S100 specifically includes:
step S110, sending a wireless signal to the closed environment of the device to be tested, and establishing connection with the device to be tested.
The processing module is in control connection with the wireless sending module, and sends a wireless signal to the closed environment of the device to be tested through the wireless sending module, namely the wireless sending module serves as a hot spot in wireless connection, the device to be tested receives the wireless signal sent by the wireless sending module through the wireless module of the device to be tested, and wireless communication connection is established with the processing module through the wireless sending module.
And step S120, acquiring a first intensity signal according to the serial port information of the equipment to be tested.
Carry out the information interaction through the serial port instrument between equipment to be tested and the processing module, processing module can acquire the serial port information of equipment to be tested through the serial port instrument, the equipment to be tested will feed back to processing module through the serial port instrument with the intensity of wireless communication connection between processing module or the wireless sending module, processing module acquires first intensity information through the information interaction with the equipment to be tested, specifically, first intensity information is the intensity of wireless communication connection between equipment to be tested and processing module or the wireless sending module. Of course, the processing module may also obtain the strength of the wireless communication connection of the device under test in other suitable manners.
Fig. 3 shows a flowchart of a specific step structure of step S200 in this embodiment.
In some embodiments, as shown in fig. 3, step S200 includes:
step S210, obtaining feedback information of the intensity analysis module at the position of the device under test.
The intensity analysis module receives the wireless signals sent by the wireless sending module at the position of the equipment to be tested, and meanwhile, the wireless signals are subjected to intensity analysis. The processing module is in information interaction connection with the strength analysis module through a serial port tool, the processing module controls the strength analysis module to analyze the strength of the wireless signals, and the strength analysis module outputs feedback information to the processing module.
And step S220, acquiring real-time intensity information according to the feedback information of the intensity analysis module.
The processing module obtains real-time intensity information through the feedback information of the intensity analysis module, and specifically, the real-time intensity information is the wireless signal intensity of the position of the equipment to be tested, which is sent by the current wireless sending module. The real-time intensity information and the first intensity information are acquired in the same time, and the real-time intensity information and the first intensity information can be acquired uniformly or uninterruptedly according to the needs of the processing module.
Fig. 4 shows a flowchart of a specific step structure of step S300 in this embodiment.
In some embodiments, as shown in fig. 4, step S300 specifically includes:
and step S310, acquiring the address information of the equipment to be tested according to the serial port information of the equipment to be tested.
The processing module is connected with the equipment to be tested through the serial port tool, and acquires the IP address acquired after the equipment to be tested is connected with the processing module or the wireless sending module. Specifically, the IP address can identify the position of the module to be tested in the wireless connection, and the processing module can accurately send the wireless test signal through the wireless sending module.
Step S320, sending a wireless test signal to the device to be tested according to the address information of the device to be tested, monitoring response information of the device to be tested, and obtaining a first test time according to the sending time.
According to the address information of the equipment to be tested, the processing module firstly sends a wireless test signal to the equipment to be tested through the wireless sending module, and according to the sending time of the wireless test signal, a first test moment is obtained, meanwhile, the feedback of the equipment to be tested is sought, and the response information fed back by the equipment to be tested is monitored. Specifically, the response information is a feedback signal corresponding to the wireless test signal sent by the device to be tested after receiving the wireless test signal.
In some embodiments, the first response time in step S400 is a time when the processing module receives the response information of the device under test.
In some embodiments, in step S500, the processing module obtains the delay information by calculating a time difference between the first test time and the first response time. Of course, the processing module may also obtain corresponding delay information by performing other suitable processing on the first test time and the first response time.
Fig. 5 shows a flowchart of a detailed step structure of step S600 in this embodiment.
In some embodiments, as shown in fig. 5, step S600 specifically includes:
step S610, comparing the delay information with a preset delay range, and determining whether the value of the delay information is within the preset delay range, if so, the obtained first test information is "test qualified", and if not, the obtained first test information is "test unqualified".
The processing module compares the delay information with a preset delay range, and specifically, an upper limit value of the preset delay range is set according to an empirical value and a test requirement. The first test information may be "pass" and "fail" and, of course, may also be adjusted to other words or other information identifiers representing pass or fail as required, such as "pass" and "fail", and the like.
Step S620, calculating and comparing the first strength information and the actual strength information, and determining whether a difference between the first strength information and the actual strength information is within a preset strength range, if so, the obtained second test information is "test pass", and if not, the obtained second test information is "test fail".
The processing module calculates the first strength information and the actual strength information to obtain a difference value of the first strength information and the actual strength information, and judges whether the difference value of the first strength information and the actual strength information is within a preset strength range, so that the second test information is qualified in test or unqualified in test. Specifically, the predetermined intensity range is set according to predetermined empirical values and test requirements. Similarly, the second testing information may be "pass" and "fail" and, of course, may also be adjusted to other words or other information representing pass or fail according to the need to identify, such as "1" and "0", "pass" and "fail", or "pass" and "fail".
Step S630, according to the first test information and the second test information, performance information is obtained, and test information of the device to be tested in the test process is recorded.
The processing module identifies and judges the first test information and the second test information, judges whether the first test information and the second test information are qualified or not, thereby obtaining performance information, and records test information of the device to be tested in the test process.
Fig. 6 shows a flowchart of a specific step structure of step S630 in this embodiment.
In some embodiments, as shown in fig. 6, step S630 specifically includes:
step S631, determining whether the first test information and the second test information are both "test-eligible":
if yes, the performance information of the wireless module of the equipment to be tested is qualified;
and if not, the performance information of the wireless module of the equipment to be tested is unqualified.
The processing module identifies the first test information and the second test information, judges the wireless module performance information of the equipment to be tested to be qualified if the first test information and the second test information are both qualified through testing, and judges the wireless module performance information of the equipment to be tested to be unqualified if the first test information and the second test information are not qualified. Of course, "qualified" and "unqualified" are only information identifiers, and the performance information can be set as "passing" and "failing" or other suitable characters, numbers or other information identifiers capable of highlighting the performance qualification or non-qualification of the wireless module of the device to be tested according to the requirement.
Step S632 is to record test information of the test process of the device under test.
The processing module records test information of the test process of the device to be tested in real time during detection, wherein the test information includes, but is not limited to, delay information, first intensity information and real-time intensity information of the device to be tested.
And step S633, performing the next operation on the equipment to be tested according to the performance information.
And the processing module performs the next operation on the equipment to be tested according to the performance information of the equipment to be tested. If the performance information of the equipment to be tested is unqualified, the equipment to be tested is sent into an unqualified product detection box, and if the performance information of the equipment to be tested is unqualified, the equipment to be tested is subjected to the next round of test.
Fig. 7 shows a configuration diagram of the in-vehicle wireless module performance test system of the present embodiment.
For better operation experience, the embodiment further provides a vehicle-mounted wireless module performance testing system, as shown in fig. 7, including a wireless sending module 710, an intensity analyzing module 720, a testing box 730, and a processing module 740; the performance test system adopts the vehicle-mounted wireless module performance test method of the embodiment. The wireless sending module 710 is in control connection with the processing module 740, and is configured to send a wireless signal to establish wireless connection with the device to be tested; the intensity analysis module 720 is connected with the processing module 740 through a serial port tool, and is configured to receive a wireless signal at a position of the device to be tested, perform intensity analysis, and output real-time intensity information of the wireless signal to the processing module 740; the test box 730 is used for manufacturing a closed test environment, can shield external interference and prevents interference signals from occurring in the test process. In addition, the processing module 740 is used for controlling the testing process and processing information such as calculation, comparison and judgment on the information output or fed back to the processing module 740.
In some embodiments, the sending module of the wireless sending module 710 and the receiving module of the strength analyzing module 720 are both disposed in the test box 730, and more specifically, the receiving module of the strength analyzing module 720 is disposed around the position of the device under test, so as to ensure that the wireless signal and the wireless test signal are both sent and received in the test box 730 during the test process, and thus the interference of the external signal is avoided, and the accuracy and reliability of the test are improved.
In some embodiments, the intensity analysis module 720 may be a spectrum analyzer, but may be other suitable intensity analysis devices.
In addition, for better operation experience, a specific test example of the vehicle-mounted wireless module performance test system is provided, wherein the device to be tested is a vehicle-mounted multimedia device, the processing module is an industrial personal computer, the wireless analysis module is a USB wireless network card, the USB wireless network card can be in control connection with the industrial personal computer through a USB interface and is connected with the sending module through an SMA interface, and the sending module can be a WiFi transmitting antenna.
The industrial personal computer controls the USB wireless network card to send a wireless WiFi signal in the test box, and wireless connection is established with a WiFi module of the vehicle-mounted multimedia equipment. The industrial computer carries out information interactive connection through serial ports instrument and vehicle-mounted multimedia equipment and intensity analysis module, acquires the real-time intensity of vehicle-mounted multimedia equipment's wireless connection intensity and vehicle-mounted multimedia equipment position, compares through both intensity, judges whether vehicle-mounted multimedia equipment's wireless connection intensity is qualified to record the intensity data of its testing process, make things convenient for the later stage control. Meanwhile, the industrial personal computer obtains delay information of the vehicle-mounted multimedia equipment by carrying out PING command on the vehicle-mounted multimedia equipment, judges whether the wireless connection network delay of the vehicle-mounted multimedia equipment is qualified or not by comparing the delay information with a preset delay range, records delay data in the test process, and obtains a group of performance information by monitoring and comprehensively comparing the connection strength of the vehicle-mounted multimedia equipment and the network delay.
Meanwhile, the environment in the test box is adjusted, specifically, the environment in the test box is set to be close to the upper limit or the lower limit of the limit temperature of the vehicle-mounted multimedia equipment to be tested, and more specifically, the temperature is set to be lower than the upper limit of the limit temperature of the vehicle-mounted multimedia equipment to be tested by 5 ℃ or higher than the lower limit thereof by 5 ℃. And performing performance test on the vehicle-mounted multimedia equipment again to obtain two additional groups of performance information. The industrial personal computer comprehensively judges whether the WiFi network performance of the WiFi module of the vehicle-mounted multimedia equipment is qualified or not according to the three groups of performance information, and corresponding next operation is carried out on the vehicle-mounted multimedia equipment.
The system has the advantages that the system can automatically carry out wireless module performance test on the device to be tested, meanwhile, the problem that the current wireless module test needs to be carried out through manual operation and subjective test is solved through time delay and strength multi-aspect test, the performance test precision of the wireless module is improved, the efficiency of the performance test of the wireless module is greatly improved, and the performance test monitoring problem of the vehicle-mounted multimedia Wi-Fi module in various environment reliability experiments of normal temperature, high temperature, low temperature and the like can be effectively solved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A vehicle-mounted wireless module performance test method is characterized by comprising the following steps:
sending a wireless signal to a closed environment where equipment to be tested is located, establishing wireless connection with the equipment to be tested, and acquiring first strength information;
obtaining feedback information of an intensity analysis module at the position of the equipment to be tested, and obtaining real-time intensity information according to the feedback information;
sending a wireless test signal, monitoring response information of equipment to be tested, and acquiring a first test moment;
acquiring a first response moment according to response information of the equipment to be tested;
obtaining delay information according to the first sending time and the first response time;
comparing the delay information with a preset delay range, and judging whether the delay information is within the preset delay range: if yes, obtaining first test information as 'test pass'; if not, obtaining first test information as 'test unqualified';
calculating and comparing the first intensity information with the actual intensity information, and judging whether the difference value of the first intensity information and the actual intensity information is within a preset intensity range: if yes, obtaining second test information as 'test pass'; if not, obtaining second test information as 'unqualified test';
and obtaining performance information according to the first test information and the second test information, and recording the test information of the device to be tested in the test process.
2. The method for testing the performance of the vehicle-mounted wireless module according to claim 1, wherein the step of sending a wireless signal to the closed environment where the device to be tested is located to establish a wireless connection with the device to be tested and the step of obtaining the first strength information comprises the step of,
sending a wireless signal to the closed environment of the equipment to be tested, and establishing connection with the equipment to be tested;
and acquiring a first intensity signal according to the serial port information of the equipment to be tested.
3. The method of claim 1, wherein the sending the wireless test signal, monitoring the response information of the device under test, and obtaining the first test time comprises,
acquiring address information of the equipment to be tested according to the serial port information of the equipment to be tested;
and sending a wireless test signal to the equipment to be tested according to the address information of the equipment to be tested, monitoring response information of the equipment to be tested, and obtaining a first test moment according to sending time.
4. The method for testing the performance of the in-vehicle wireless module according to claim 1, wherein the delay information obtained according to the first test time and the first response time is specifically,
and calculating the time difference between the first test time and the first response time to obtain the delay information.
5. The method for testing the performance of the vehicle-mounted wireless module according to claim 1, wherein the obtaining of the performance information according to the first test information and the second test information and the recording of the test information of the test process of the device under test specifically comprise,
judging whether the first test information and the second test information are both qualified:
if yes, the performance information of the wireless module of the equipment to be tested is qualified;
if not, the performance information of the wireless module of the equipment to be tested is unqualified;
recording test information of a test process of the equipment to be tested;
and performing the next operation on the equipment to be tested according to the performance information.
6. A vehicle-mounted wireless module performance testing system, characterized in that the vehicle-mounted wireless module performance testing method of any one of claims 1-5 is adopted, the performance testing system comprises,
the wireless sending module is used for sending a wireless signal into the test box;
the intensity analysis module is used for receiving the wireless signals and feeding back wireless signal intensity information to the processing module;
the test box is used for manufacturing a closed test environment and shielding external interference; and
and the processing module is in control connection with the wireless sending module and is used for controlling the test process and calculating and processing the test information in the test process.
7. The vehicle-mounted wireless module performance testing system of claim 6, wherein the transmitting module of the wireless transmitting module and the receiving module of the strength analyzing module are both disposed in a testing box.
8. The vehicle-mounted wireless module performance testing system of claim 6, wherein the test box is capable of providing an extreme temperature environment for the device under test.
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| CN112003656A (en) * | 2020-07-03 | 2020-11-27 | 惠州市德赛西威汽车电子股份有限公司 | System and method for testing vehicle-mounted wireless communication terminal assembly product |
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