CN112363187B - Automatic testing method and system for GNSS sensitivity of communication module - Google Patents
Automatic testing method and system for GNSS sensitivity of communication module Download PDFInfo
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- CN112363187B CN112363187B CN202011386925.6A CN202011386925A CN112363187B CN 112363187 B CN112363187 B CN 112363187B CN 202011386925 A CN202011386925 A CN 202011386925A CN 112363187 B CN112363187 B CN 112363187B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an automatic testing method, system, equipment and medium for GNSS sensitivity of a communication module, which are used for presetting configuration parameters of automatic testing procedures for GNSS sensitivity of the communication module with different testing types; configuring a test instrument according to the setting information; executing a communication module GNSS sensitivity automatic test flow corresponding to the target test type through the setting information, wherein the test flow comprises the following steps: controlling the testing instrument to continuously emit a testing signal to the communication module within a first preset period under the target testing type and the target testing mode; and judging whether the positioning is successful or not according to the returned response data. The automatic test of the GNSS sensitivity of the communication module is realized, manual intervention is not needed, and the test efficiency is improved; the defect of low testing accuracy caused by the fact that the strength of the signal sent by the testing instrument is reduced manually when the communication module does not completely respond to the signal with preset strength sent by the testing instrument is avoided.
Description
Technical Field
The invention relates to the technical field of automatic testing, in particular to an automatic testing method, system, equipment and medium for GNSS sensitivity of a communication module.
Background
The sensitivity test of the communication module GNSS (Global Navigation Satellite System ) is a test for checking the performance status of the communication module, and the communication module needs to perform the sensitivity test before leaving the factory to detect the recognition capability of the communication module to various level signals.
However, in the prior art, when the GNSS sensitivity of the communication module is tested, a manual testing method is generally adopted, which is inefficient. And manually adjusting a testing instrument for simulating an on-the-day satellite, observing feedback data after the communication module is connected with the testing instrument, and judging the signal intensity which can be captured by the communication module. The mode can cause that when the communication module does not completely respond to the signal with preset intensity sent by the testing instrument, the signal intensity sent by the testing instrument is manually reduced, so that the testing accuracy is low.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of low testing efficiency and low accuracy of the GNSS sensitivity of the communication module manually in the prior art, and provide an automatic testing method, system, equipment and medium for the GNSS sensitivity of the communication module.
The invention solves the technical problems by the following technical scheme:
In a first aspect, the present invention provides an automated testing method for GNSS sensitivity of a communication module, the automated testing method comprising:
the automated testing method comprises the following steps:
presetting configuration parameters of a GNSS sensitivity automatic test flow of communication modules of different test types;
acquiring setting information of a user;
configuring a test instrument according to the setting information; the setting information comprises a target test type and a target test mode;
executing the communication module GNSS sensitivity automatic test procedure corresponding to the target test type through the setting information, wherein the communication module GNSS sensitivity automatic test procedure comprises the following steps:
controlling the test instrument to continuously transmit test signals to the communication module in a first preset period under the target test type and the target test mode;
and judging whether the positioning is successful or not according to response data returned by the communication module.
Preferably, the target test type is a cold start sensitivity test, and after the step of controlling the test instrument to continuously transmit the test signal to the communication module in the first preset period of time in the target test type and the target test mode, the automatic testing procedure of the GNSS sensitivity of the communication module further includes:
Transmitting a cold start instruction to the communication module to eliminate original ephemeris information in the communication module;
after the step of judging whether the positioning is successful according to the response data returned by the communication module, the automatic test method further comprises the following steps:
if the positioning is successful, judging whether the operation of positioning success statistics needs to be executed or not;
if so, judging whether the positioning success rate meets a first preset threshold value;
if not, returning to the step of controlling the test instrument to continuously transmit the test signal to the communication module in the first preset period under the target test type and the target test mode, and re-enhancing the strength of the test signal and testing the test signal;
if yes, receiving the signal intensity and the CN0 value after successful positioning;
or alternatively, the first and second heat exchangers may be,
after the successful positioning is judged, the ephemeris information is downloaded in a second preset period;
reducing the signal strength according to a second preset step, and continuously transmitting the adjusted test signal to the communication module in the first preset period;
judging whether the communication module is positioned successfully under the intensity of the adjusted test signal;
if the positioning is successful, judging whether the operation of positioning success statistics needs to be executed or not;
If so, judging whether the positioning success rate meets a first preset threshold value;
if yes, returning to the step of reducing the signal strength according to the second preset step, and continuously transmitting the adjusted test signal to the communication module in the first preset period of time to reduce the strength of the test signal again and test;
if not, acquiring the signal intensity and the CN0 value after the last positioning success from the signal intensity and the CN0 value after the positioning is finished;
or alternatively, the first and second heat exchangers may be,
the test type is a reacquiring sensitivity test, and after the step of judging whether positioning is successful according to the response data returned by the communication module, the method further comprises the following steps:
after the successful positioning is judged, the ephemeris information is downloaded in a second preset period;
after the intensity of the test signal is reduced below a second preset threshold value, controlling the test instrument to stop transmitting the test signal to the communication module within a third preset period of time;
controlling the test instrument to continuously transmit test signals below a second preset threshold value to the communication module within the first preset period;
judging whether the communication module is positioned successfully under the test signal below a second preset threshold value;
If the positioning is successful, judging whether the operation of positioning success statistics needs to be executed or not;
if so, judging whether the positioning success rate meets a first preset threshold value;
if not, returning to the step of controlling the testing instrument to continuously transmit the testing signal below a second preset threshold value to the communication module in the first preset period, re-enhancing the strength of the signal strength, and testing;
if yes, the signal intensity and the CN0 value after successful positioning are received.
Preferably, the target test mode includes a single positioning mode and a combined mode, wherein the single positioning mode includes GPS, GLONASS or BD, and the combined mode is a combination of at least two of GPS, GLONASS, BD.
Preferably, the operation of performing the positioning success statistics includes the operation of obtaining the cycle number, the total number of single tests, the stop number of cycle failures and the single expected success number;
and/or;
when the target test type is tracking sensitivity test, the value of the second preset step is increased under the signal intensity of-130 dB to-140 dBm.
In a second aspect, the present invention provides an automated testing system for GNSS sensitivity of a communication module, the automated testing system comprising:
The presetting module is used for presetting configuration parameters of the GNSS sensitivity automatic test flow of the communication modules with different test types;
the acquisition module is used for acquiring setting information of a user;
the configuration module is used for configuring the test instrument according to the setting information; the setting information comprises a target test type and a target test mode;
the execution module is used for executing the automatic GNSS sensitivity test flow of the communication module corresponding to the target test type through the setting information; the execution module comprises:
the first control unit is used for controlling the test instrument to continuously transmit test signals to the communication module in a first preset period of time under the target test type and the target test mode;
and the positioning success judging unit is used for judging whether the positioning is successful or not according to the response data returned by the communication module.
The execution module further includes:
a cold start instruction sending unit, configured to send a cold start instruction to the communication module to eliminate original ephemeris information in the communication module;
if positioning is successful, calling a first judging unit;
the first judging unit is used for judging whether the operation of successful statistics of positioning needs to be executed or not; if necessary, calling a second judging unit;
The second judging unit is used for judging whether the positioning success rate meets a first preset threshold value or not; if not, the first control unit is called to re-enhance the signal strength and test is carried out; if yes, calling a signal first signal strength receiving unit;
the first signal strength receiving unit is used for receiving the signal strength and the CN0 value after successful positioning;
or alternatively, the first and second heat exchangers may be,
the target test type is a tracking sensitivity test, and the execution module further comprises:
after judging that the positioning is successful, calling an ephemeris information downloading unit;
the ephemeris information downloading unit is used for downloading the ephemeris information in a second preset period;
the second control unit is used for reducing the signal intensity according to a second preset step and continuously transmitting the adjusted test signal to the communication module in the first preset period;
the third judging unit is used for judging whether the communication module is positioned successfully or not under the intensity of the adjusted test signal, and if so, the first judging unit is called and used for judging whether the operation of positioning success statistics needs to be executed or not; if necessary, calling a second judging unit; the second judging unit is used for judging whether the positioning success rate meets a first preset threshold value or not;
If yes, calling the second control unit to reduce the strength of the test signal again and testing;
if not, the second signal strength receiving unit is called;
the second signal strength receiving unit is used for obtaining the signal strength and the CN0 value after the last successful positioning from the signal strength and the CN0 value after the positioning;
or alternatively, the first and second heat exchangers may be,
the test type is a reacquisition sensitivity test, and the execution module further includes:
after judging that the positioning is successful, calling an ephemeris information downloading unit;
the ephemeris information downloading unit is used for downloading the ephemeris information in a second preset period;
the third control unit is used for controlling the test instrument to stop transmitting the test signal to the communication module within a third preset period after the intensity of the test signal is reduced below a second preset threshold value;
a fourth control unit, configured to control the test instrument to continue transmitting a test signal that is below a second preset threshold to the communication module continuously during the first preset period;
a fourth judging unit, configured to judge whether the communication module is positioned successfully under the test signal below a second preset threshold; if the positioning is successful, a first judging unit is called, and the first judging unit is used for judging whether the operation of positioning success statistics needs to be executed or not; if necessary, calling a second judging unit; the second judging unit is used for judging whether the positioning success rate meets a first preset threshold value or not;
If not, a fourth control unit is called to re-enhance the signal strength and test is carried out;
if yes, calling a first signal strength receiving unit;
the first signal strength receiving unit is used for receiving the signal strength and the CN0 value after successful positioning.
Preferably, the target test mode includes a single positioning mode and a combined mode, wherein the single positioning mode includes GPS, GLONASS or BD, and the combined mode is a combination of at least two of GPS, GLONASS, BD.
Preferably, the operation of performing the positioning success statistics includes the operation of obtaining the cycle number, the total number of single test, the stop number of cycle failure and the single expected success number;
and/or;
when the target test type is tracking sensitivity test, the value of the second preset step is increased under the signal intensity of-130 dB to-140 dBm.
In a third aspect, the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the method for automatically testing GNSS sensitivity of the communication module according to the first aspect when the processor executes the computer program.
In a fourth aspect, the present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for automatically testing GNSS sensitivity of a communication module according to the first aspect.
The invention has the positive progress effects that: the automatic testing method for the GNSS sensitivity of the communication module is provided, so that the automatic testing of the GNSS sensitivity of the communication module is realized, manual intervention is not needed, and the testing efficiency is improved; the defect of low testing accuracy caused by the fact that the signal intensity sent by the testing instrument is reduced manually when the communication module does not completely respond to the signal with preset intensity sent by the testing instrument is avoided, and the automatic testing is performed after the signal intensity is automatically adjusted, so that the testing accuracy is improved; in the operation of carrying out statistics of successful positioning statistics, the total times, the single expected successful times, the circulation times and the circulation failure stopping times of single test are determined, so that the condition that the test result is inaccurate due to one or a few times of positioning failures caused by positioning contingency under weak signals and the like is reduced.
Drawings
Fig. 1 is a flowchart of an automatic testing method for GNSS sensitivity of a communication module according to embodiment 1 of the present invention.
Fig. 2 is a flowchart of an automatic testing method for GNSS sensitivity of a communication module according to embodiment 1 of the present invention in testing cold start sensitivity.
Fig. 3 is a flowchart of an automatic testing method for the GNSS sensitivity of the communication module according to embodiment 1 of the present invention.
Fig. 4 is a flowchart of an automatic testing method for the GNSS sensitivity of the communication module according to embodiment 1 of the present invention.
Fig. 5 is a schematic diagram of an automatic testing system for GNSS sensitivity of a communication module according to embodiment 2 of the present invention.
Fig. 6 is a main interface diagram of an automatic testing system for GNSS sensitivity of a communication module according to embodiment 2 of the present invention.
FIG. 7 is a first common parameter interface diagram of an automatic testing system for GNSS sensitivity of a communication module according to embodiment 2 of the present invention.
FIG. 8 is a second common parameter interface diagram of an automatic testing system for GNSS sensitivity of a communication module according to embodiment 2 of the present invention.
Fig. 9 is a schematic diagram of a first test interface of an automatic testing system for GNSS sensitivity of a communication module according to embodiment 2 of the present invention.
Fig. 10 is a schematic diagram of a second test interface of an automatic testing system for GNSS sensitivity of a communication module according to embodiment 2 of the present invention.
Fig. 11 is a schematic diagram of a third test interface of an automatic test system for GNSS sensitivity of a communication module according to embodiment 2 of the present invention.
Fig. 12 is a schematic diagram of the hardware structure of the electronic device in embodiment 4 of the invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Example 1
The present embodiment provides an automatic testing method of GNSS sensitivity of a communication module, which can be applied to a client, and thus can be executed by the client, specifically, the client can be executed by a mobile device such as a smart phone, a tablet computer or a desktop computer. As shown in fig. 1, the automated test method comprises the steps of:
s1, presetting configuration parameters of the GNSS sensitivity automatic test flow of communication modules with different test types.
Step S11, acquiring setting information of a user.
Step S12, configuring a testing instrument according to the setting information; wherein the setting information includes a target test type and a target test mode.
Step S2, executing a communication module GNSS sensitivity automatic test procedure corresponding to the target test type through the setting information, wherein the communication module GNSS sensitivity automatic test procedure comprises the following steps:
and S3, controlling the testing instrument to continuously transmit a testing signal to the communication module within a first preset period under the target testing type and the target testing mode.
And S4, judging whether the positioning is successful or not according to response data returned by the communication module.
In this embodiment, after the test is started, it is first required to detect whether the test apparatus (GSS 6700/GSS 7000) is already turned on, and if so, it is required to detect whether the network segments of the client computer and the test apparatus are the same. If the network segments are different, the test fails.
The target test mode comprises a single positioning mode and a combined mode, wherein the single positioning mode comprises GPS, GLONASS or BD, and the combined mode is a combination of at least two of GPS, GLONASS, BD.
The configuration information set by a user is read, corresponding test threads are started according to the checked target test type and the target test mode in the configuration information, 1 test thread corresponds to 1 test module, a plurality of test threads can be set for simultaneously testing a plurality of test modules, and the number of the test modules can be 1, 2, 3, 4 and 5. The target test types can be three types of tracking sensitivity test, re-capture sensitivity test and cold start sensitivity test, and the target test module can be GPS, GLONASS, BD, GPS and GLONASS, GPS and BD, GLONASS and BD, and GPS, GLONASS and BD, and the target test module can be one type of the following test, the re-capture sensitivity test and the cold start sensitivity test. The configuration information can also comprise a communication mode, and the communication mode can adopt an AT interface and an NMEA interface; alternatively, the communication mode may use only an NMEA interface. When the communication mode is the AT interface and the NMEA interface, judging whether the AT interface is successfully opened or not, and judging whether the NMEA interface is successfully opened or not; when the communication mode is an NMEA interface, only whether the NMEA interface is opened or not is judged to be successful, and if the serial port is opened and fails, the test is directly ended.
After the communication serial port is successfully opened, the testing instrument is configured according to the configuration information, and under the target test type, a test signal is continuously transmitted to the communication module in a first preset period through the adopted communication serial port.
And automatically receiving response data returned by the communication module aiming at the transmitted test signal, and judging whether the communication module is positioned successfully under the test signal according to the returned response data.
The automatic testing method for the GNSS sensitivity of the communication module specifically comprises the following steps when testing the cold start sensitivity:
s1, presetting configuration parameters of the GNSS sensitivity automatic test flow of communication modules with different test types.
Step S11, acquiring setting information of a user.
Step S12, configuring a testing instrument according to the setting information; wherein the setting information includes a target test type and a target test mode.
Step S2, executing a communication module GNSS sensitivity automatic test procedure corresponding to the target test type through the setting information, as shown in fig. 2, where the communication module GNSS sensitivity automatic test procedure includes:
and S3, controlling the testing instrument to continuously transmit a testing signal to the communication module within a first preset period under the target testing type and the target testing mode.
Step S31, a cold start instruction is sent to the communication module to eliminate the original ephemeris information in the communication module.
And S4, judging whether the positioning is successful or not according to response data returned by the communication module, if the positioning is successful, executing the step S5, and if the positioning is unsuccessful, acquiring the strength of the current test signal and the CN0 value.
Step S5, judging whether the operation of successful statistics of the positioning needs to be executed, and if so, executing step S6.
And S6, judging whether the positioning success rate meets a first preset threshold value, if not, returning to the step S3, readjusting the strength of the test signal and testing, and if so, executing the step S7.
The return control test instrument readjusts the signal strength and tests the communication module in the step of continuously transmitting the test signal in the first preset period under the target test type and the target test mode, and the return control test instrument comprises the following steps:
and taking the strength of the test signal as a reference, enhancing the strength of the signal according to a first preset step and retesting.
And S7, receiving the signal intensity and the CN0 value after successful positioning.
Specifically, the control instrument outputs a test signal set by the configuration information, and sends a cold start instruction to the communication module through the communication serial port so as to eliminate the original ephemeris information stored in the communication module. And in a first preset period set by the configuration information, judging that the positioning is not successful according to response data returned by the communication module, and recording the intensity of the current test signal and the CN0 value. After returning to step S31, the test signal strength is enhanced according to the set step, and then a cold start command is sent to the module again, so that the check module can negate the success of the bit, and the cycle is performed until the positioning is successful.
After the communication module is successfully positioned according to the response data returned by the communication module, if the configuration information comprises the operation of executing the statistics of the positioning success, the analysis of the positioning success rate (the analysis of the number of times of positioning of NMEA sentences) is started. If the positioning success rate does not meet the first preset threshold, returning to the step S3 to readjust the strength of the test signal and test. The process of cold start operation is performed again after the signal strength is enhanced. If the positioning success rate meets the standard, recording the signal intensity after successful positioning and the CN0 value after positioning in the cold start sensitivity test, and outputting the result to the end of the cold start sensitivity test.
It should be noted that, during the cold start sensitivity test, the communication module must not have any ephemeris information that is helpful to positioning, and after the test is started, the communication module automatically searches for satellites in full days until positioning is successful. The worse the test signal strength is, the longer the positioning time of the cold start sensitivity is, the first preset threshold may be 5min, and the minimum test signal strength capable of successfully positioning the cold start in the first preset period is the cold start sensitivity.
The automatic testing method for the GNSS sensitivity of the communication module specifically comprises the following steps when the tracking sensitivity is tested:
s1, presetting configuration parameters of the GNSS sensitivity automatic test flow of communication modules with different test types.
Step S11, acquiring setting information of a user.
Step S12, configuring a testing instrument according to the setting information; the setting information comprises a target test type and a target test mode, wherein the target test type is a tracking sensitivity test.
Step S2, executing a communication module GNSS sensitivity automatic test procedure corresponding to the target test type through the setting information, as shown in fig. 3, where the communication module GNSS sensitivity automatic test procedure includes:
and S3, controlling the testing instrument to continuously transmit a testing signal to the communication module within a first preset period under the target testing type and the target testing mode.
And S4, judging whether the positioning is successful according to response data returned by the communication module, and if so, executing the step S41.
Step S41, downloading ephemeris information in a second preset period.
Step S42, the signal intensity is reduced according to the second preset step, and the adjusted test signal is continuously transmitted to the communication module in the first preset period.
Step S43, judging whether the communication module is positioned successfully under the intensity of the adjusted test signal, if so, executing step S5, and if not, executing step S71.
Step S5, judging whether the operation of successful statistics of the positioning needs to be executed, and if so, executing step S6.
And S6, judging whether the positioning success rate meets a first preset threshold value, if so, returning to the step S42 to readjust the strength of the test signal and test, and if not, executing the step S71.
Step S71, outputting the signal intensity and the CN0 value after the last positioning success from the signal intensity and the CN0 value after the positioning.
Specifically, if the current test type is a tracking sensitivity test, the test instrument is controlled to continuously transmit a test signal to the communication module within a first preset period, whether positioning is successful is judged according to response data returned by the communication module, and if positioning is failed, the tracking sensitivity test is ended. And if the positioning is successful, downloading the ephemeris information within a second preset period set by the configuration information. After the ephemeris information is downloaded, the intensity and CN0 value of the current test signal can be obtained.
If in the GPS measurement mode, the ephemeris information is an accurate position or track table of the running satellite which changes with time. Continuously transmitting the adjusted test signal to the communication module in a first preset period according to the second preset step to reduce the signal intensity, judging whether the communication module is positioned successfully under the intensity of the adjusted test signal in a time range set by the configuration information,
If the positioning is successful, judging whether the operation of positioning success statistics is needed according to the configuration information, and if not, recording the current test signal strength and the CN0 value and reducing the signal strength according to the setting. If necessary, the success rate statistics is carried out. And when the positioning success rate does not meet the set value, continuously reducing the signal strength according to the set second preset step. And (3) circulating until the positioning fails or the success rate is lower than the set value, recording the strength of the last positionable test signal and the CN0 value, and outputting the result, so that the tracking sensitivity test is finished.
The automatic testing method for the GNSS sensitivity of the communication module specifically comprises the following steps when the re-acquisition sensitivity is tested:
s1, presetting configuration parameters of the GNSS sensitivity automatic test flow of communication modules with different test types.
Step S11, acquiring setting information of a user.
Step S12, configuring a testing instrument according to the setting information; the setting information comprises a target test type and a target test mode, wherein the target test type is a reacquisition sensitivity test.
Step S2, executing a communication module GNSS sensitivity automatic test procedure corresponding to the target test type through the setting information, as shown in fig. 4, where the communication module GNSS sensitivity automatic test procedure includes:
And S3, controlling the testing instrument to continuously transmit a testing signal to the communication module within a first preset period under the target testing type and the target testing mode.
And S4, judging whether the positioning is successful according to response data returned by the communication module, and if so, executing the step S41.
Step S41, downloading ephemeris information in a second preset period.
And S44, after the intensity of the test signal is reduced below a second preset threshold value, controlling the test instrument to stop transmitting the test signal to the communication module within a third preset period.
Step S45, the test instrument is controlled to continuously transmit the test signal below the second preset threshold value to the communication module within the first preset period.
Step S46, judging whether the communication module is positioned successfully under the test signal below the second preset threshold value.
Step S5, judging whether the operation of successful statistics of the positioning needs to be executed, and if so, executing step S6.
And S6, judging whether the positioning success rate meets a first preset threshold value, if not, returning to the step S45 to readjust the strength of the test signal and test, and if so, executing the step S7.
And S7, receiving the signal intensity and the CN0 value after successful positioning.
If the reacquiring sensitivity is tested, the testing instrument is controlled to reduce the strength of the testing signal below a second preset threshold value, the testing signal is closed within a third preset time period, and then the testing instrument is controlled to continuously transmit the testing signal below the second preset threshold value to the communication module within the first preset time period.
Judging whether the communication module is positioned successfully under the test signal below a second preset threshold value; if the positioning fails, the current test signal strength can be recorded. If the positioning is successful, if the positioning success rate is required to be counted, starting counting of the positioning success rate. If the success rate is lower than the set value, the signal strength is enhanced again according to the preset step, if the positioning success rate of the communication module meets the first preset threshold value, the signal strength and the CN0 value after the successful positioning are recorded, and the signal strength which can be positioned at maximum and the CN0 value after the positioning can be output, so that the reacquisition sensitivity test is finished.
The target test mode comprises a single positioning mode and a combined mode, wherein the single positioning mode comprises a GPS, GLONASS or BD, and the combined mode is a combination of at least two of GPS, GLONASS, BD; the operation of executing the positioning success statistics comprises the operation of acquiring the cycle times, the total times of single test, the stop times of cycle failure and the single expected success times; and/or; when the target test type is tracking sensitivity test, the value of the second preset step is increased under the signal intensity of-130 dB to-140 dBm.
The automatic testing method for the GNSS sensitivity of the communication module is provided, so that the automatic testing of the GNSS sensitivity of the communication module is realized, manual intervention is not needed, and the testing efficiency is improved; the defect of low testing accuracy caused by the fact that the signal intensity sent by the testing instrument is reduced manually when the communication module does not completely respond to the signal with preset intensity sent by the testing instrument is avoided, and the automatic testing is performed after the signal intensity is automatically adjusted, so that the testing accuracy is improved; in the operation of carrying out statistics of successful positioning statistics, the total times, the single expected successful times, the circulation times and the circulation failure stopping times of single test are determined, so that the condition that the test result is inaccurate due to one or a few times of positioning failures caused by positioning contingency under weak signals and the like is reduced.
Example 2
The embodiment provides an automatic testing system for GNSS sensitivity of a communication module, as shown in fig. 5, the automatic testing system specifically includes: the device comprises a presetting module 110, an obtaining module 111, a configuration module 112 and an executing module 120, wherein the executing module 120 comprises a first control unit 130 and a positioning success judging unit 140.
The presetting module 110 is configured to preset configuration parameters of the automatic testing process of the GNSS sensitivity of the communication module with different testing types;
An obtaining module 111, configured to obtain setting information of a user;
a configuration module 112, configured to configure a test instrument according to the setting information; the setting information comprises a target test type and a target test mode;
an execution module 120, configured to execute, according to the setting information, an automatic GNSS sensitivity test procedure of the communication module corresponding to the target test type;
the execution module 120 includes:
a first control unit 130, configured to control the test instrument to continuously transmit a test signal to the communication module in a first preset period under a target test type and a target test mode;
and the positioning success judging unit 140 is configured to judge whether the positioning is successful according to the response data returned by the communication module.
If the target test type is a cold start sensitivity test, the execution module 120 includes: a cold start instruction transmitting unit 131, a first judging unit 150, a second judging unit 160, and a first signal strength receiving unit 170.
The cold start instruction sending unit 131 is configured to send a cold start instruction to the communication module to eliminate original ephemeris information in the communication module;
a first judging unit 150, configured to judge whether an operation of performing positioning success statistics is required; if necessary, invoking the second judging unit 160;
A second judging unit 160, configured to judge whether the positioning success rate meets a first preset threshold, and if yes, invoke the first control unit 130 to re-enhance the signal strength and perform a test; if yes, the signal first signal strength receiving unit 170 is called;
the first signal strength receiving unit 170 is configured to receive the signal strength and the CN0 value after the positioning is successful.
If the target test type is a tracking sensitivity test, the execution module 120 includes: the ephemeris information download unit 141, the second control unit 142, the third judgment unit 143, the second signal strength receiving unit 171.
The ephemeris information downloading unit 141 is configured to download ephemeris information in a second preset period;
the second control unit 142 is configured to decrease the signal strength according to a second preset step, and continuously transmit the adjusted test signal to the communication module in the first preset period;
a third judging unit 143 for judging whether the communication module is positioned successfully under the intensity of the adjusted test signal, and if so, invoking the first judging module 150,
a first judging unit 150, configured to judge whether an operation of performing positioning success statistics is required; if necessary, invoking the second judging unit 160;
A second judging unit 160, configured to judge whether the positioning success rate meets a first preset threshold, and if yes, call the second control unit 142 to reduce the strength of the test signal again and perform a test; if not, the second signal strength receiving unit 171 is called;
the second signal strength receiving unit 171 is configured to obtain the signal strength and the CN0 value after the last positioning success from the signal strength and the CN0 value after the positioning.
If the target test type is a reacquisition sensitivity test, the execution module 120 includes: ephemeris information download unit 141, third control unit 144, fourth control unit 145, fourth judgment unit 146, first signal strength receiving unit 170.
The ephemeris information downloading unit 141 is configured to download ephemeris information in a second preset period;
a third control unit 144, configured to control the test instrument to stop transmitting the test signal to the communication module within a third preset period after the intensity of the test signal is reduced below the second preset threshold;
a fourth control unit 145 for controlling the tested instrument to continue transmitting the test signal below the second preset threshold to the communication module for the first preset period;
A fourth judging unit 146, configured to judge whether the communication module is positioned successfully under the test signal below the second preset threshold; if the positioning is successful, the first judging unit 150 is invoked,
a first judging unit 150, configured to judge whether an operation of performing positioning success statistics is required; if necessary, invoking the second judging unit 160;
a second judging unit 160, configured to judge whether the positioning success rate meets a first preset threshold, and if not, call the fourth control unit 145 to re-enhance the signal strength and perform a test; if so, invoking the first signal strength receiving unit 170;
the first signal strength receiving unit 170 is configured to receive the signal strength and the CN0 value after the positioning is successful.
The target test mode comprises a single positioning mode and a combined mode, wherein the single positioning mode comprises a GPS, GLONASS or BD, and the combined mode is a combination of at least two of GPS, GLONASS, BD; the operation of executing the positioning success statistics comprises the operation of acquiring the cycle times, the total times of single test, the stop times of cycle failure and the single expected success times;
and/or;
when the target test type is tracking sensitivity test, the value of the second preset step is increased under the signal intensity of-130 dB to-140 dBm.
Fig. 6 is a main interface diagram of an automatic testing system for GNSS sensitivity of the communication module according to the present embodiment. The main interface is divided into a menu bar, a log display area, a result display area, a test state indication area, a button area and a test waiting progress area.
Menu bar: the menu bar is divided into two parts, set up and related. Log display area: and displaying all needed test logs, and conveniently checking the test progress. Result display area: and the test result is displayed, so that the test condition is convenient to check. Test status indication: the real-time indication of the current software Running state is divided into six states of Ready, running, stoped, pause, fail and Completed, and the current test positioning mode. Button area: comprising a start button and a pause button. Test waiting progress area: and displaying the progress of the current test state through the progress bar in a countdown mode.
As shown in fig. 7, a first common parameter interface diagram of the automatic testing system for GNSS sensitivity of the communication module of the present embodiment is shown, where the first common parameter interface includes: project name, test item, etc. The communication modes can comprise AT+NMEA and NMEA, and are selected according to the communication modes of the project. Instrument selection: GSS6700, GSS7000, which instrument is used to select which one. Test mode: the system comprises three single positioning modes and a combination mode, and is checked according to actual test requirements. Initial signal strength: for tracking sensitivity and reacquisition sensitivity, there is an action of downloading ephemeris before testing, i.e. a positioning download is required at this initial signal strength. The GPS test mode is-130 dBm, the GLONASS test mode is-131 dBm, and the Beidou test module is-133 dBm. Instrument port setup: the port fills in the IP address of the test instrument for controlling the test instrument. End print NMEA statement: this function is used to log whether NMEA is output. The line loss can be filled with line loss values according to the actual test environment.
As shown in fig. 8, a second common parameter interface diagram of the automatic testing system for GNSS sensitivity of the communication module of the present embodiment may include multiple serial port setting, location success statistics, analysis of NMEA GSV specification sentences, and loading of configuration files. Multiple serial port settings: according to the selection of the actual test item and the communication mode in the public parameter 1, if the test module supports the AT port to issue the instruction and the NMEA port to read the positioning information, the AT port and the NMEA port need to pick up and fill in the corresponding serial numbers and pick up the previous modules. Which module is hooked corresponds to which thread is started. Similarly, if the test module only supports the NMEA port to send instructions and read positioning information, only the module and the NMEA port are checked and corresponding serial numbers are filled.
And (5) successful positioning statistics: in NMEA, sentences are spelled at a frequency of 1 Hz. Taking the data filled in fig. 8 as an example, the total number of times of single test is 10, the number of times of single expected success is 7, which means that the set requirement is met as long as 7 times of sentences are successfully positioned in every 10 effective NMEA sentences, the positioning success rate at the moment is more than or equal to 70%, the cycle number is 8, the cycle failure stopping number is 3, which means that the test of the success rate of 70% is carried out for 8 times again, and if the success rate of 70% is achieved for 3 times, the set requirement is met. Sensitivity testing reduces the occurrence of inaccurate test results caused by one or a few positioning failures due to positioning contingency and other problems under weak signals.
The desired character: during testing, NMEA sentences of individual platforms or special modules contain some non-positioning sentences, and sometimes the 1Hz information which is spitted does not contain any positioning information, so that the probability of software analysis positioning is affected.
Analysis of NMEA GSV specification statement: the analysis module locates the CN0 value, which needs to use GSV statement in NMEA, GPGSV represents GPS ephemeris, GLGSV represents GLONASS, BDGSV represents Beidou. But some special modules, especially for beidou, will be represented by e.g. PQGSV, GBGSV.
The loading configuration file can be used for loading the set project configuration parameters, and is simple, convenient and quick.
Fig. 9 is a schematic diagram of a first test interface of an automatic testing system for GNSS sensitivity of a communication module according to the present embodiment. The cold start sensitivity includes an initial signal strength, an increase step value, a cold start time, and a cold start command. The initial signal strength characterizes a signal strength that is critical and for which the module cannot be successfully cold started. Increasing the step value characterizes each unsuccessful positioning of a cold start, and the signal strength is increased in this step. The cold start time characterizes a given module cold start time.
Fig. 10 is a schematic diagram of a second test interface of the automatic testing system for GNSS sensitivity of the communication module according to the present embodiment. The tracking sensitivity test interface comprises a downloading ephemeris waiting time, a waiting positioning time, an interval after successful positioning and a signal descending stepping. When the signal is in descending step setting, the module can properly fill the step under the strong signal, and the step is properly reduced to achieve the effect of testing accuracy as the step is closer to the test critical value.
Fig. 11 is a schematic diagram of a third test interface of the automatic testing system for GNSS sensitivity of the communication module according to the present embodiment. The reacquisition sensitivity interface includes five items, download ephemeris latency, reacquisition initial signal strength, increment step value, wait positioning time, signal off latency. The reacquired initial signal strength characterizes a weak signal strength of a given communication module that cannot be located, and on the basis of this, the signal strength is enhanced to find a weak signal that can be located exactly.
The automatic testing system for the GNSS sensitivity of the communication module is provided, so that the automatic testing of the GNSS sensitivity of the communication module is realized, manual intervention is not needed, and the testing efficiency is improved; the defect of low testing accuracy caused by the fact that the signal intensity sent by the testing instrument starts to be reduced manually when the communication module does not completely respond to the signal with preset intensity sent by the testing instrument is avoided; the automatic test is performed after the signal intensity is automatically adjusted, so that the test precision is improved; in the operation of carrying out statistics of successful positioning statistics, the total times, the single expected successful times, the circulation times and the circulation failure stopping times of single test are determined, so that the condition that the test result is inaccurate due to one or a few times of positioning failures caused by positioning contingency under weak signals and the like is reduced.
Example 3
The present embodiment provides a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of the automated test method of GNSS sensitivity of a communication module of embodiment 1.
More specifically, among others, readable storage media may be employed including, but not limited to: portable disk, hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible embodiment, the invention may also be realized in the form of a program product comprising program code for causing a terminal device to carry out the steps of an automated test method for implementing the GNSS sensitivity of the communication module of example 1, when said program product is run on the terminal device.
Wherein the program code for carrying out the invention may be written in any combination of one or more programming languages, which program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on the remote device or entirely on the remote device.
Example 4
Fig. 12 is a schematic structural diagram of an electronic device according to the present embodiment. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the automatic testing method of GNSS sensitivity of the communication module of embodiment 1, and the electronic device 30 shown in fig. 12 is merely an example, and should not impose any limitation on the functions and the scope of use of the embodiment of the present invention.
The electronic device 30 may be in the form of a general purpose computing device, which may be a server device, for example. Components of electronic device 30 may include, but are not limited to: the at least one processor 31, the at least one memory 32, a bus 33 connecting the different system components, including the memory 32 and the processor 31.
The bus 33 includes a data bus, an address bus, and a control bus.
Memory 32 may include volatile memory such as Random Access Memory (RAM) 321 and/or cache memory 322, and may further include Read Only Memory (ROM) 323.
Memory 32 may also include a program/utility 325 having a set (at least one) of program modules 324, such program modules 324 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
The processor 31 executes various functional applications and data processing, such as the automatic test method of the GNSS sensitivity of the communication module of embodiment 1 of the present invention, by running a computer program stored in the memory 32.
The electronic device 30 may also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). Such communication may be through an input/output (I/O) interface 35. Also, model-generating device 30 may also communicate with one or more networks, such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet, via network adapter 36. As shown, network adapter 36 communicates with the other modules of model-generating device 30 via bus 33. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in connection with the model-generating device 30, including, but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, data backup storage systems, and the like.
It should be noted that although several units/modules or sub-units/modules of an electronic device are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more units/modules described above may be embodied in one unit/module in accordance with embodiments of the present invention. Conversely, the features and functions of one unit/module described above may be further divided into ones that are embodied by a plurality of units/modules.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (8)
1. An automated testing method for GNSS sensitivity of a communication module, wherein the automated testing method comprises:
presetting configuration parameters of a GNSS sensitivity automatic test flow of communication modules of different test types;
acquiring setting information of a user;
configuring a test instrument according to the setting information; the setting information comprises a target test type and a target test mode;
executing the communication module GNSS sensitivity automatic test procedure corresponding to the target test type through the setting information, wherein the communication module GNSS sensitivity automatic test procedure comprises the following steps:
controlling the test instrument to continuously transmit test signals to the communication module in a first preset period under the target test type and the target test mode;
Judging whether positioning is successful or not according to response data returned by the communication module;
the target test type is a cold start sensitivity test, the controlling the test instrument is further performed after the step of continuously transmitting test signals to the communication module in a first preset period of time in the target test type and the target test mode, and the communication module GNSS sensitivity automatic test procedure further includes:
transmitting a cold start instruction to the communication module to eliminate original ephemeris information in the communication module;
after the step of judging whether the positioning is successful according to the response data returned by the communication module, the automatic test method further comprises the following steps:
if the positioning is successful, judging whether the operation of positioning success statistics needs to be executed or not;
if so, judging whether the positioning success rate meets a first preset threshold value;
if not, returning to the step of controlling the test instrument to continuously transmit the test signal to the communication module in the first preset period under the target test type and the target test mode, and re-enhancing the strength of the test signal and testing the test signal;
if yes, receiving the signal intensity and the CN0 value after successful positioning;
Or alternatively, the first and second heat exchangers may be,
the target test type is a tracking sensitivity test, and after the step of judging whether positioning is successful according to response data returned by the communication module, the method further comprises the following steps:
after the successful positioning is judged, the ephemeris information is downloaded in a second preset period;
reducing the signal strength according to a second preset step, and continuously transmitting the adjusted test signal to the communication module in the first preset period;
judging whether the communication module is positioned successfully under the intensity of the adjusted test signal;
if the positioning is successful, judging whether the operation of positioning success statistics needs to be executed or not;
if so, judging whether the positioning success rate meets a first preset threshold value;
if yes, returning to the step of reducing the signal strength according to the second preset step, and continuously transmitting the adjusted test signal to the communication module in the first preset period of time to reduce the strength of the test signal again and test;
if not, acquiring the signal intensity and the CN0 value after the last positioning success from the signal intensity and the CN0 value after the positioning is finished;
or alternatively, the first and second heat exchangers may be,
the test type is a reacquiring sensitivity test, and after the step of judging whether positioning is successful according to response data returned by the communication module, the automatic testing flow of the GNSS sensitivity of the communication module comprises the following steps:
After the successful positioning is judged, the ephemeris information is downloaded in a second preset period;
after the intensity of the test signal is reduced below a second preset threshold value, controlling the test instrument to stop transmitting the test signal to the communication module within a third preset period of time;
controlling the test instrument to continuously transmit test signals below a second preset threshold value to the communication module within the first preset period;
judging whether the communication module is positioned successfully under the test signal below a second preset threshold value;
if the positioning is successful, judging whether the operation of positioning success statistics needs to be executed or not;
if so, judging whether the positioning success rate meets a first preset threshold value;
if not, returning to the step of controlling the test instrument to continuously transmit the test signal below a second preset threshold value to the communication module in the first preset period, re-enhancing the strength of the test signal and testing;
if yes, the signal intensity and the CN0 value after successful positioning are received.
2. The automated testing method of communication module GNSS sensitivity of claim 1 wherein the target test mode comprises a single location mode and a combined mode, wherein the single location mode comprises GPS, GLONASS or BD, and the combined mode is a combination of at least two of GPS, GLONASS, BD.
3. The method of automated testing of GNSS sensitivity of a communication module according to claim 1, wherein said operations of performing positioning success statistics include operations of obtaining a number of loops, a total number of single tests, a number of loop failure stops, and a single expected number of successes;
and/or;
when the target test type is tracking sensitivity test, the value of the second preset step is increased under the signal intensity of-130 dB to-140 dBm.
4. An automated testing system for GNSS sensitivity of a communication module, the automated testing system comprising:
the presetting module is used for presetting configuration parameters of the GNSS sensitivity automatic test flow of the communication modules with different test types;
the acquisition module is used for acquiring setting information of a user;
the configuration module is used for configuring the test instrument according to the setting information; the setting information comprises a target test type and a target test mode;
the execution module is used for executing the automatic GNSS sensitivity test flow of the communication module corresponding to the target test type through the setting information; the execution module comprises:
the first control unit is used for controlling the test instrument to continuously transmit test signals to the communication module in a first preset period of time under the target test type and the target test mode;
The positioning success judging unit is used for judging whether positioning is successful or not according to response data returned by the communication module;
the target test type is a cold start sensitivity test, and the execution module further comprises:
a cold start instruction sending unit, configured to send a cold start instruction to the communication module to eliminate original ephemeris information in the communication module;
if positioning is successful, calling a first judging unit;
the first judging unit is used for judging whether the operation of successful statistics of positioning needs to be executed or not; if necessary, calling a second judging unit;
the second judging unit is used for judging whether the positioning success rate meets a first preset threshold value or not; if not, the first control unit is called to re-enhance the signal strength and test is carried out; if yes, calling a signal first signal strength receiving unit;
the first signal strength receiving unit is used for receiving the signal strength and the CN0 value after successful positioning;
or alternatively, the first and second heat exchangers may be,
the target test type is a tracking sensitivity test, and the execution module further comprises:
after judging that the positioning is successful, calling an ephemeris information downloading unit;
the ephemeris information downloading unit is used for downloading the ephemeris information in a second preset period;
The second control unit is used for reducing the signal intensity according to a second preset step and continuously transmitting the adjusted test signal to the communication module in the first preset period;
the third judging unit is used for judging whether the communication module is positioned successfully or not under the intensity of the adjusted test signal, and if so, the first judging unit is called and used for judging whether the operation of positioning success statistics needs to be executed or not; if necessary, calling a second judging unit; the second judging unit is used for judging whether the positioning success rate meets a first preset threshold value or not;
if yes, calling the second control unit to reduce the strength of the test signal again and testing;
if not, the second signal strength receiving unit is called;
the second signal strength receiving unit is used for obtaining the signal strength and the CN0 value after the last successful positioning from the signal strength and the CN0 value after the positioning;
or alternatively, the first and second heat exchangers may be,
the test type is a reacquisition sensitivity test, and the execution module further includes:
after judging that the positioning is successful, calling an ephemeris information downloading unit;
the ephemeris information downloading unit is used for downloading the ephemeris information in a second preset period;
The third control unit is used for controlling the test instrument to stop transmitting the test signal to the communication module within a third preset period after the intensity of the test signal is reduced below a second preset threshold value;
a fourth control unit, configured to control the test instrument to continue transmitting a test signal that is below a second preset threshold to the communication module continuously during the first preset period;
a fourth judging unit, configured to judge whether the communication module is positioned successfully under the test signal below a second preset threshold; if the positioning is successful, a first judging unit is called, and the first judging unit is used for judging whether the operation of positioning success statistics needs to be executed or not; if necessary, calling a second judging unit; the second judging unit is used for judging whether the positioning success rate meets a first preset threshold value or not;
if not, a fourth control unit is called to re-enhance the signal strength and test is carried out;
if yes, calling a first signal strength receiving unit;
the first signal strength receiving unit is used for receiving the signal strength and the CN0 value after successful positioning.
5. The automated testing system of communication module GNSS sensitivity of claim 4 wherein the target test mode comprises a single location mode and a combined mode, wherein the single location mode comprises GPS, GLONASS or BD and the combined mode is a combination of at least two of GPS, GLONASS, BD.
6. The automated testing system of communication module GNSS sensitivity of claim 4 wherein said operations of performing positioning success statistics include operations of obtaining a number of loops, a total number of single tests, a number of loop failure stops, and a single expected number of successes;
and/or;
when the target test type is tracking sensitivity test, the value of the second preset step is increased under the signal intensity of-130 dB to-140 dBm.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements an automated testing method of GNSS sensitivity of a communication module according to any of the claims 1-3 when executing the computer program.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for automated testing of GNSS sensitivity of a communication module according to any of the claims 1-3.
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