CN105564301B - A kind of car audio system and its diagnostic method diagnosed automatically with radar for backing car - Google Patents
A kind of car audio system and its diagnostic method diagnosed automatically with radar for backing car Download PDFInfo
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Abstract
The present invention relates to a kind of car audio system and its diagnostic method diagnosed automatically with radar for backing car.The system includes automobile audio main control module, power module, display and buzzer, in addition to a radar for backing car main control module electrically connected with automobile audio main control module and multiple radar detedtors being arranged on around car body；A diagnosis unit that detectable signal is judged in advance for being used to gather the radar detedtor is additionally provided with automobile audio main control module., can be by the way that to check code, data length, data transmission time, data, whether the conditions for diagnostics such as saltus step judges, so that it is determined that whether the reversing radar function that the car audio system is carried is normal during actual diagnosis.The car audio system and its diagnostic method that are diagnosed automatically with radar for backing car of the present invention, is effectively reduced the chance of erroneous judgement, improves the security for driving reversing, reduces the loss and danger of user, so as to improve the comfortableness of vehicle and intelligent.
Description
Technical field
The present invention relates to automobile audio technical field, more particularly to a kind of automobile audio system diagnosed automatically with radar for backing car
System.
Background technology
Popularized already in automobile industry independently of the radar for backing car of car audio system, this reverse radar system and vapour
Car sound equipment is simultaneously unconnected, it is necessary to spend the separately installed a set of reverse radar system of certain cost, and the radar for backing car of low side
System is even more the prompting of only some simple displaying distances and sound, and without auto-check system.
In recent years, increasing reverse radar system starts to be combined with car audio system, is integrated into automobile audio
The data that reverse radar system in system is transmitted by radar tell car owner's current vehicle in itself residing for environment whether have barrier
Hinder thing, and come out by sound system interface display, such a system has certain design defect, if reverse radar system is in itself
Out of joint, such as radar for backing car and sound system communication failure (failure) or back-up radar probe break down and (lost
Effect), car owner has no idea to know, can so cause reversing automobile and barrier to be caused danger collision, therefore in the urgent need to one kind
Can be with automatic detection and collection radar for backing car and the car audio system for showing failure (failure) information.
The content of the invention
It is an object of the invention to provide a kind of car audio system and its diagnostic method diagnosed automatically with radar for backing car.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of automobile diagnosed automatically with radar for backing car
Sound system, it includes automobile audio main control module, power module, display and buzzer, in addition to one and the automobile sound
Ring the radar for backing car main control module and multiple radar detedtors being arranged on around car body of main control module electrical connection；The electricity
Source module out-put supply signal is that the radar main control module and the automobile audio main control module are powered, the radar detedtor
The data collected are delivered to the radar main control module, the radar main control module receives the radar detedtor collection
The number that data output exports the radar main control module to the automobile audio main control module, the automobile audio main control module
According to by diagnosing and sending diagnostic result to the display and buzzer；It is additionally provided with the automobile audio main control module
One diagnosis unit judged in advance for the detectable signal for gathering the radar detedtor.
In a preferred embodiment, the automobile audio main control module internal memory contains criteria check code, the standard school
Test the standard code that code sequentially includes being used to represent that each radar detedtor gathers frame data in normal state.
In a preferred embodiment, automobile audio main control module internal memory contains criteria check code, the criteria check code
Sequentially include the standard code for being used to represent that each radar detedtor gathers frame data in normal state, then perform again
Following diagnosis algorithm：
Step S1, power module start to start, and all radar detedtors gather detectable signal, are then sent to thunder in real time
Up to main control module；
The collection result of step S2, radar main control module in step S1 automatically generates multiple corresponding with radar detedtor
Real-time code and the plurality of real-time code is sequentially combined to form real-time check code, radar main control module simultaneously this is real-time
Check code is sent to automobile audio main control module, and radar main control module is received after end of data, then into step S3, otherwise, returned
Return step S1；
The real-time verification generated in step S3, the diagnosis unit receiving step S2 being arranged on inside automobile audio main control module
Code is simultaneously compared with the criteria check code progress diagnosis being stored in inside automobile audio main control module, if each real-time code is equal
It is identical with standard code, then judge that the data of radar detedtor detection are correct, the correct collection of automobile audio main control module output
Data simultaneously carry out distance prompt by display and buzzer, otherwise, are back to step S1；
Step S4, repeat step S1 to step S3 and accumulate execution 5 times, accumulation 5 times after perform step S5, otherwise,
Return to step S1；
Distance prompt sound when step S5, pause reversing；
Step S6, generation warning prompt, and the diagnostic result in step S3, will correspond to different real-time codes and mark
The radar detedtor of quasi- code is shown over the display, to be prompted to human pilot.
In a preferred embodiment, be also stored with a full-length value, the radar detection in automobile audio main control module
The standard frame data that device is collected under normal conditions forms the full-length value；During verification, radar detedtor is examined first
A frame data are surveyed, following steps are then performed：
It is described that step S01, diagnosis unit judge whether the length value of the real-time frame data of radar detedtor collection reaches
Full-length value, if it is, performing step S02, otherwise, radar detedtor continues gathered data；
Step S02, the real-time frame data gathered according to step S01, judge its last position and the full-length value
Whether corresponding end of data position is identical, if it is, performing the verification to the real-time check code of real-time frame data, otherwise, holds
Row step S03;
Step S03, the judged result according to step S02, automobile audio main control module add in the tail end of real-time frame data
Plus one is used for the flag bit for representing that its length value is not inconsistent with full-length value；
Step S04, circulation perform step S01 to S03 up to 5 times, and it is all mistake to judge whether continuous 5 times, if it is, performing
Step S05, otherwise, return to step S01 continue gathered data;
Step S05, the judged result according to step S04, are reported an error by display and buzzer.
In a preferred embodiment, when automobile audio master control module judges have been in reversing mode, radar for backing car is meeting
Continuous a period of time sends data, if not receiving the data of radar for backing car transmission in 1 second completely, reports an error, specific steps
Including：
Step S001, unlatching radar for backing car main control module；
Step S002, one set time of setting simultaneously open corresponding timer；
Step S003, radar for backing car main control module start and judge whether to receive the data that radar detedtor is sent to,
If it is, timer reclocking, otherwise, performs step S004;
Step S004, judge whether timing terminates timer, if it is, performing step S005;
Step S005, the judged result according to step S004, are reported an error by display and buzzer.
In a preferred embodiment, when the data that radar for backing car is detected in itself have saltus step, then following steps are performed：
Step S0001, all radar detedtors gather detectable signal, are then sent to radar main control module in real time；
The collection result of step S0002, radar main control module in step S0001 automatically generates real-time check code, thunder
The real-time check code is sent to automobile audio main control module simultaneously up to main control module, radar main control module receives end of data
Afterwards, then into step S0003, otherwise, return to step S0001；
The real-time check code that is generated in step S0003, diagnosis unit receiving step S0002 is simultaneously carried out with criteria check code
Diagnosis is compared, if each real-time code is identical with standard code, performs step S0004, otherwise return to step S0001;
Step S0004, the diagnostic result according to step S0003, judge radar detedtor collection data whether mistake, such as
It is really no, perform step S0005;
Step S0005, judge whether the data of collection have saltus step, if it is, step S0006 is performed, otherwise, normal display
The data of radar for backing car detection；
Step S0006, judge whether number of transitions is identical, if it is, saving as number of transitions, otherwise, perform step
S0007;
Step S0007, whether number of transitions cumulative number is judged with reaching, if it is not, then the data gathered next time are waited,
If it is, updating display data and this data being stored in into normal number.
The car audio system and its beneficial effect of diagnostic method that the present invention is diagnosed automatically with radar for backing car are：Pass through
Automobile audio main control module, power module, display and buzzer, in addition to one and automobile audio master control mould are set in system
The radar for backing car main control module and multiple radar detedtors being arranged on around car body of block electrical connection；Automobile audio master control mould
A diagnosis unit that detectable signal is judged in advance for being used to gather the radar detedtor is additionally provided with block.Actual diagnosis
When, can be by the way that to check code, data length, data transmission time, data, whether the conditions for diagnostics such as saltus step judges, so that really
Whether the reversing radar function that the fixed car audio system is carried is normal.The automobile sound diagnosed automatically with radar for backing car of the present invention
Acoustic system and its diagnostic method, are effectively reduced the chance of erroneous judgement, improve the security for driving reversing, reduce the loss of user
And danger, so as to improve the comfortableness of vehicle and intelligent.
Brief description of the drawings
Fig. 1 is the structure principle chart of the car audio system diagnosed automatically with radar for backing car in an embodiment.
Fig. 2 is the diagnostic flow chart of the car audio system diagnosed automatically with radar for backing car in first embodiment.
Fig. 3 is the diagnostic flow chart of the car audio system diagnosed automatically with radar for backing car in second embodiment.
Fig. 4 is the diagnostic flow chart of the car audio system diagnosed automatically with radar for backing car in 3rd embodiment.
Fig. 5 is the diagnostic flow chart of the car audio system diagnosed automatically with radar for backing car in fourth embodiment
Embodiment
The car audio system that is diagnosed automatically with radar for backing car to the present invention below in conjunction with specific embodiment and accompanying drawing and
Its diagnostic method is described in further detail.
Refer to Fig. 1, a kind of car audio system diagnosed automatically with radar for backing car, it includes automobile audio master control mould
Block, power module, display and buzzer, in addition to a radar for backing car master control mould electrically connected with automobile audio main control module
Block and multiple radar detedtors being arranged on around car body；Power module out-put supply signal is radar main control module and institute
State automobile audio main control module to power, the data collected are delivered to the radar main control module, radar master by radar detedtor
Control module and receive the data output of radar detedtor collection to automobile audio main control module, automobile audio main control module is by radar master
The data of control module output are by diagnosing and sending diagnostic result to display and buzzer；In automobile audio main control module also
It is provided with a diagnosis unit that detectable signal is judged in advance for being used to gather radar detedtor.
Automobile audio main control module internal memory contains criteria check code, and criteria check code sequentially includes being used to represent each thunder
Gather the standard code of frame data in normal state up to detector.
Data and automobile audio main control module pair that reversing diagnostic function is sent mainly in accordance with radar for backing car main control module
Data analysis is carried out.For self start type radar for backing car, radar all can send a data every one section of set time, then automobile
Sound equipment main control module is received, in the present case, and a data instance is sent per 100ms with radar, carries out explaining for diagnosis principle
State.
Fig. 2 is referred to, when a certain radar detedtor is removed, loose contact or unavailable, radar for backing car main control module is defeated
The data area gone out will be problematic, and the data that automobile audio main control module detects probe there is a problem, when accumulation to one
After fixed number of times, user will be told in the way of figure and warning.
In practice, it is defeated that the data that radar detedtor all on car is gathered all are combined into a frame by radar for backing car
Go out, and export to form a fixed check code for the single frames, by the check code whether change is that can determine whether thunder of moving backward
Whether the gathered data reached is accurate, if check code is all identical, then can only just sentence by automobile audio main control module
Whether disconnected data malfunction.
In the first embodiment, a kind of diagnostic method of the car audio system diagnosed automatically with radar for backing car, automobile sound
Ring main control module internal memory and contain criteria check code, the criteria check code sequentially includes being used to represent that each radar detedtor is equal
The standard code of frame data is gathered in normal state, and following diagnosis algorithm is then performed again：
Step S1, power module start to start, and all radar detedtors gather detectable signal, are then sent to thunder in real time
Up to main control module；
The collection result of step S2, radar main control module in step S1 automatically generates multiple corresponding with radar detedtor
Real-time code and the plurality of real-time code is sequentially combined to form real-time check code, radar main control module simultaneously this is real-time
Check code is sent to automobile audio main control module, and radar main control module is received after end of data, then into step S3, otherwise, returned
Return step S1；
The real-time verification generated in step S3, the diagnosis unit receiving step S2 being arranged on inside automobile audio main control module
Code is simultaneously compared with the criteria check code progress diagnosis being stored in inside automobile audio main control module, if each real-time code is equal
It is identical with standard code, then judge that the data of radar detedtor detection are correct, the correct collection of automobile audio main control module output
Data simultaneously carry out distance prompt by display and buzzer, otherwise, are back to step S1；
Step S4, repeat step S1 to step S3 and accumulate execution 5 times, accumulation 5 times after perform step S5, otherwise,
Return to step S1；
Distance prompt sound when step S5, pause reversing；
Step S6, generation warning prompt, and the diagnostic result in step S3, will correspond to different real-time codes and mark
The radar detedtor of quasi- code is shown over the display, to be prompted to human pilot.
Fig. 3 is referred to, in a second embodiment, because the data of each frame of radar for backing car are all fixed, then just
It can be judged according to the data length received.When receiving the data of a frame length, if last position is not knot
Shu Wei, then automobile audio MCU addition error flags position, if continuously determining 5 this problems, then just report an error, therefore, vapour
Also be stored with a full-length value, the standard that the radar detedtor is collected under normal conditions in car sound equipment main control module
Frame data forms the full-length value；During verification, radar detedtor detects a frame data first, then performs following steps：
It is described that step S01, diagnosis unit judge whether the length value of the real-time frame data of radar detedtor collection reaches
Full-length value, if it is, performing step S02, otherwise, radar detedtor continues gathered data；
Step S02, the real-time frame data gathered according to step S01, judge its last position and the full-length value
Whether corresponding end of data position is identical, if it is, performing the verification to the real-time check code of real-time frame data, otherwise, holds
Row step S03;
Step S03, the judged result according to step S02, automobile audio main control module add in the tail end of real-time frame data
Plus one is used for the flag bit for representing that its length value is not inconsistent with full-length value；
Step S04, circulation perform step S01 to S03 up to 5 times, and it is all mistake to judge whether continuous 5 times, if it is, performing
Step S05, otherwise, return to step S01 continue gathered data;
Step S05, the judged result according to step S04, are reported an error by display and buzzer.
Fig. 4 is referred to, in the third embodiment, when automobile audio master control module judges have been in reversing mode, is moved backward
Radar is continuously to send data for a period of time, if not receiving the data of radar for backing car transmission in 1 second completely, is reported an error,
Specific steps include：
Step S001, unlatching radar for backing car main control module；
Step S002, one set time of setting simultaneously open corresponding timer；
Step S003, radar for backing car main control module start and judge whether to receive the data that radar detedtor is sent to,
If it is, timer reclocking, otherwise, performs step S004;
Step S004, judge whether timing terminates timer, if it is, performing step S005;
Step S005, the judged result according to step S004, are reported an error by display and buzzer.
Fig. 4 is referred to, in the fourth embodiment, when the data that radar for backing car is detected in itself have saltus step, is then performed
Following steps：
Step S0001, all radar detedtors gather detectable signal, are then sent to radar main control module in real time；
The collection result of step S0002, radar main control module in step S0001 automatically generates real-time check code, thunder
The real-time check code is sent to automobile audio main control module simultaneously up to main control module, radar main control module receives end of data
Afterwards, then into step S0003, otherwise, return to step S0001；
The real-time check code that is generated in step S0003, diagnosis unit receiving step S0002 is simultaneously carried out with criteria check code
Diagnosis is compared, if each real-time code is identical with standard code, performs step S0004, otherwise return to step S0001;
Step S0004, the diagnostic result according to step S0003, judge radar detedtor collection data whether mistake, such as
It is really no, perform step S0005;
Step S0005, judge whether the data of collection have saltus step, if it is, step S0006 is performed, otherwise, normal display
The data of radar for backing car detection；
Step S0006, judge whether number of transitions is identical, if it is, saving as number of transitions, otherwise, perform step
S0007;
Step S0007, whether number of transitions cumulative number is judged with reaching, if it is not, then the data gathered next time are waited,
If it is, updating display data and this data being stored in into normal number.
To sum up, the present invention is diagnosed automatically with radar for backing car car audio system and its diagnostic method, by system
Automobile audio main control module, power module, display and buzzer are set, in addition to one electrically connects with automobile audio main control module
Radar for backing car main control module and multiple radar detedtors being arranged on around car body；Also set in automobile audio main control module
It is equipped with a diagnosis unit that detectable signal is judged in advance for being used to gather the radar detedtor.During actual diagnosis, it can lead to
Cross to check code, data length, data transmission time, data whether the conditions for diagnostics such as saltus step judges, so that it is determined that the vapour
Whether the reversing radar function that car sound system is carried is normal.The car audio system diagnosed automatically with radar for backing car of the present invention
And its diagnostic method, the chance of erroneous judgement is effectively reduced, the security for driving reversing is improved, loss and the danger of user is reduced
Danger, so as to improve the comfortableness of vehicle and intelligent.
Although description of this invention combination embodiments above is carried out, those skilled in the art
Member can carry out many replacements, modifications and variations according to above-mentioned content, be obvious.Therefore, it is all it is such substitute,
Improve and change is included in the spirit and scope of appended claims.
Claims (4)
1. a kind of diagnostic method of the car audio system diagnosed automatically with radar for backing car, it is characterised in that the diagnostic method
Based on the car audio system diagnosed automatically with radar for backing car, the sound system includes automobile audio main control module, power supply mould
Block, display and buzzer, in addition to one electrically connected with the automobile audio main control module radar for backing car main control module, with
And multiple radar detedtors being arranged on around car body；The power module out-put supply signal be the radar main control module and
The automobile audio main control module is powered, and the data collected are delivered to the radar main control module by the radar detedtor,
The radar main control module receives the data output of the radar detedtor collection to the automobile audio main control module, the vapour
The data that car sound equipment main control module exports the radar main control module are by diagnosing and sending diagnostic result to the display
Device and buzzer；A detection for being used to gather the radar detedtor is additionally provided with the automobile audio main control module to believe
Number diagnosis unit judged in advance；Automobile audio main control module internal memory contains criteria check code, criteria check code according to
Sequence include be used for represent each radar detedtor in normal state gather frame data standard code, then perform again with
Lower diagnosis algorithm：
Step S1, power module start to start, and all radar detedtors gather detectable signal, are then sent to radar master in real time
Control module；
The collection result of step S2, radar main control module in step S1 automatically generates multiple realities corresponding with radar detedtor
When code and the plurality of real-time code is sequentially combined to form real-time check code, radar main control module is simultaneously by the real-time verification
Code is sent to automobile audio main control module, and radar main control module is received after end of data, then into step S3, otherwise, returns to step
Rapid S1；
The real-time check code that is generated in step S3, the diagnosis unit receiving step S2 being arranged on inside automobile audio main control module,
And carry out diagnosis with the criteria check code being stored in inside automobile audio main control module and compared, if each real-time code with mark
Quasi- code is identical, then judges that the data of radar detedtor detection are correct, automobile audio main control module exports correct gathered data
And distance prompt is carried out by display and buzzer, otherwise, it is back to step S1；
Step S4, repeat step S1 to step S3 and accumulate execution 5 times, accumulation 5 times after perform step S5, otherwise, return
Step S1；
Distance prompt sound when step S5, pause reversing；
Step S6, produce warning prompt, and the diagnostic result in step S3, will the different real-time codes of correspondence and standard generation
The radar detedtor of code is shown over the display, to be prompted to human pilot.
2. diagnostic method according to claim 1, it is characterised in that be also stored with a standard in automobile audio main control module
Length value, the standard frame data that the radar detedtor is collected under normal conditions forms the full-length value；Verification
When, radar detedtor detects a frame data first, then performs following steps：
Step S01, diagnosis unit judge whether the length value of the real-time frame data of radar detedtor collection reaches the standard
Length value, if it is, performing step S02, otherwise, radar detedtor continues gathered data；
Step S02, the real-time frame data gathered according to step S01, judge that its last position is corresponding with the full-length value
End of data position it is whether identical, if it is, performing the verification to the real-time check code of real-time frame data, otherwise, perform step
Rapid S03;
Step S03, the judged result according to step S02, automobile audio main control module add one in the tail end of real-time frame data
The individual flag bit for being used to represent that its length value is not inconsistent with full-length value；
Step S04, circulation perform step S01 to S03 up to 5 times, and it is all mistake to judge whether continuous 5 times, if it is, performing step
S05, otherwise, return to step S01 continue gathered data;
Step S05, the judged result according to step S04, are reported an error by display and buzzer.
3. diagnostic method according to claim 1, it is characterised in that when automobile audio master control module judges are in down
Car pattern, radar for backing car is continuously to send data for a period of time, if not receiving the number of radar for backing car transmission in 1 second completely
According to then reporting an error, specific steps include：
Step S001, unlatching radar for backing car main control module；
Step S002, one set time of setting simultaneously open corresponding timer；
Step S003, radar for backing car main control module start and judge whether to receive the data that radar detedtor is sent to, if
It is, then timer reclocking otherwise, to perform step S004;
Step S004, judge whether timing terminates timer, if it is, performing step S005;
Step S005, the judged result according to step S004, are reported an error by display and buzzer.
4. diagnostic method according to claim 1, it is characterised in that jumped when the data that radar for backing car is detected in itself are present
During change, then following steps are performed：
Step S0001, all radar detedtors gather detectable signal, are then sent to radar main control module in real time；
The collection result of step S0002, radar main control module in step S0001 automatically generates real-time check code, radar master
Control module simultaneously sends the real-time check code to automobile audio main control module, and radar main control module is received after end of data, then
Into step S0003, otherwise, return to step S0001；
The real-time check code that is generated in step S0003, diagnosis unit receiving step S0002 is simultaneously diagnosed with criteria check code
Compare, if each real-time code is identical with standard code, perform step S0004, otherwise return to step S0001;
Step S0004, the diagnostic result according to step S0003, judge radar detedtor collection data whether mistake, if
It is no, perform step S0005;
Step S0005, judge whether the data of collection have saltus step, if it is, step S0006 is performed, otherwise, normal display reversing
The data of detections of radar；
Step S0006, judge whether number of transitions is identical, if it is, saving as number of transitions, otherwise, perform step S0007;
Step S0007, whether number of transitions cumulative number is judged with reaching, if it is not, then the data gathered next time are waited, if
It is then to update display data and this data is stored in normal number.
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| CN2823046Y (en) * | 2004-04-29 | 2006-10-04 | 李平山 | Intelligent radar for backing car |
| CN201133937Y (en) * | 2007-11-21 | 2008-10-15 | 奇瑞汽车股份有限公司 | Backing radar system |
| CN102753988A (en) * | 2009-12-07 | 2012-10-24 | 科布拉电子有限公司 | Analyzing data from networked radar detectors |
| CN103499817A (en) * | 2013-10-18 | 2014-01-08 | 柳州市华航电器有限公司 | Intelligent reversing radar system and automatic control method thereof |
| KR20140066405A (en) * | 2012-11-23 | 2014-06-02 | 현대모비스 주식회사 | Method for detecting installation position of vehicle radar sensor |
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| CN2823046Y (en) * | 2004-04-29 | 2006-10-04 | 李平山 | Intelligent radar for backing car |
| CN201133937Y (en) * | 2007-11-21 | 2008-10-15 | 奇瑞汽车股份有限公司 | Backing radar system |
| CN102753988A (en) * | 2009-12-07 | 2012-10-24 | 科布拉电子有限公司 | Analyzing data from networked radar detectors |
| KR20140066405A (en) * | 2012-11-23 | 2014-06-02 | 현대모비스 주식회사 | Method for detecting installation position of vehicle radar sensor |
| CN103499817A (en) * | 2013-10-18 | 2014-01-08 | 柳州市华航电器有限公司 | Intelligent reversing radar system and automatic control method thereof |
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