CN103927796A - Automatic calibration method of pulse coefficient of automobile traveling data recorder - Google Patents
Automatic calibration method of pulse coefficient of automobile traveling data recorder Download PDFInfo
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- CN103927796A CN103927796A CN201310013451.4A CN201310013451A CN103927796A CN 103927796 A CN103927796 A CN 103927796A CN 201310013451 A CN201310013451 A CN 201310013451A CN 103927796 A CN103927796 A CN 103927796A
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Abstract
The invention discloses an automatic calibration method of a pulse coefficient of an automobile traveling data recorder. One point in a vehicle traveling route is selected as a starting point, another point is used as an end point, statistics of the pulse mileage and the GPS mileage from the starting point to the end point are carried out respectively, and pulse coefficient after calibration=pulse coefficient before calibration*(pulse mileage/GPS mileage). With adopting the method and in an automatic traveling data recorder afterinstallation market, the pulse coefficient of the recorder is not required to be calibrated by technical personnel, the manpower cost is greatly saved, the labor intensity is reduced, and the work efficiency is improved.
Description
Technical field
The present invention relates to automobile travel recorder, what be specifically related to is a kind of automobile travel recorder impulse ratio automatic calibrating method.
Background technology
Automobile travel recorder, is commonly called as automobile black box, is the digital electronic pen recorder that other status informations of Vehicle Speed, time, mileage and relevant Vehicle Driving Cycle are recorded, stored and can export by Interface realization data.In order to strengthen the management and using of automobile travel recorder, China requires solar obligation on large-scale operating passenger car, Transportation of Dangerous Chemicals car, school bus to use automobile travel recorder, and set up dynamic monitoring information platform, realize inter-sectional data sharing, the supervision of strengthening dynamic security.
Setting or calibration that technological difficulties of generally encountering in installing and using the process of automobile travel recorder are at present Tachographs impulse ratios.Because the speed acquisition principle of automobile travel recorder is: preset time t, the pulse mileage s in cumulative calculation time t, car speed v=s/t.Hence one can see that, and whether car speed collection is accurate, and key is that whether pulse mileage calculation is accurate, and whether pulse mileage calculation accurately depends on that whether impulse ratio setting is accurate.Impulse ratio is the inherent attribute of vehicle, closely related with vehicle motor parameter, tire parameter, speed pickup parameter, it is a determined value, once this value is fixing after vehicle dispatches from the factory, this property value of the vehicle of same type is identical, when the value of therefore only having Tachographs impulse ratio to arrange is consistent with this property value, the speed of Tachographs collection could accurately reflect works as vehicle in front actual travel speed.For front dress market, generally Ke You automobile production producer sets the impulse ratio of automobile travel recorder, but for rear dress market, often fill a kind of car and need the technician of automobile travel recorder manufacturer to calibrate pulsatile once coefficient, otherwise registering instrument after installing cannot normally use.Not only labour intensity is large for this kind of method, and time-consuming, effort, efficiency are low.
Summary of the invention
For this reason, the object of the present invention is to provide a kind of automobile travel recorder impulse ratio automatic calibrating method, to realize, rear dress automobile travel recorder carried out to impulse ratio automatic calibration, to solve that the labour intensity existing while filling after automobile travel recorder is large, time-consuming, effort, inefficient problem.
The object of the invention is to be achieved through the following technical solutions.
An automobile travel recorder impulse ratio automatic calibrating method, comprises step:
S1, system initialization, pulse velocity abnormality mark is clear 0, and reads the impulse ratio value k1 before calibration;
S2, pulse velocity gather and add up pulse mileage, and opening timing device;
S3, judge whether to arrive timing, in this way, enter step S4; As no, exit, wait for next time;
S4, judge whether impulse speed abnormality mark is set, in this way, enter step S9; As no, enter step S5;
S5, judge that whether GPS is in navigational state, in this way, enter step S6; As no, exit, wait for next time;
S6, read impulse speed and GPS velocity amplitude;
S7, judge that whether the difference of both speed of impulse speed and GPS velocity amplitude exceeds setting value, in this way, enters step S8; As no, exit, wait for next time;
S8, set pulse velocity sag sign, impulse speed anomalous counts is clear 0, and choosing current residing location point is A point, reads as prepulse accumulative mileage SA, and GPS accumulative mileage is clear 0, opens GPS mileage statistics;
S9, judge that whether GPS is in navigational state, in this way, enter step S11; As no, enter step S10;
S10, impulse speed anomalous counts clear 0;
S11, impulse speed anomalous counts add 1;
S12, judge that whether impulse speed anomalous counts value is greater than setting value, in this way, enters step S13; As no, exit, wait for next time;
S13, to choose current location point be B point, reads pulse accumulative mileage SB and GPS accumulative mileage S that B is ordered;
Impulse ratio k2 after S14, calculating calibration, k2=k1* (SB-SA)/S;
S15, impulse speed abnormality mark are clear 0, and impulse speed anomalous counts is clear 0, the impulse ratio after calibration is stored in the storer of original storage k1 value, and replaces k1 with k2, so far impulse ratio calibration end.
The present invention compared with prior art, beneficial effect is: automobile travel recorder impulse ratio automatic calibrating method provided by the invention, by choosing certain in route or travel by vehicle a bit as starting point, another point is as end point, add up respectively pulse mileage and GPS mileage from starting point to end point, the impulse ratio * (pulse mileage/GPS mileage) before the impulse ratio=calibration after calibration.And fill market after adopting the present invention for automobile travel recorder, and without by technician, the impulse ratio of registering instrument being calibrated, greatly save human cost, reduced labour intensity, improved work efficiency.
Accompanying drawing explanation
Fig. 1 is automobile travel recorder impulse speed automatic calibration process flow diagram of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to shown in Fig. 1, Fig. 1 is automobile travel recorder impulse speed automatic calibration process flow diagram of the present invention.The present invention is to provide a kind of automobile travel recorder impulse ratio automatic calibrating method, it is when filling Tachographs after current automobile, the technician of automobile travel recorder manufacturer need to calibrate rear dress registering instrument, and existing labour intensity is large, time-consuming, effort, inefficient problem.
The present invention introduces satellite positioning functions, a kind of method of applying GPS mileage automatic calibration automobile travel recorder impulse ratio has been proposed, the party's ratio juris is: choose certain 1 A in route or travel by vehicle as starting point, another B is as end point, add up respectively pulse mileage and the GPS mileage of from A point, to B, ordering, suppose to be respectively S1, S2, the impulse ratio * (S1/S2) before the impulse ratio=calibration after calibration.
Wherein automobile travel recorder impulse ratio automatic calibrating method of the present invention, specifically comprises the steps:
S1, system initialization, pulse velocity abnormality mark is clear 0, and reads the impulse ratio value k1 before calibration;
S2, pulse velocity gather and add up pulse mileage, and opening timing device;
S3, judge whether to arrive timing, in this way, enter step S4; As no, exit, wait for next time;
S4, judge whether impulse speed abnormality mark is set, in this way, enter step S9; As no, enter step S5;
S5, judge that whether GPS is in navigational state, in this way, enter step S6; As no, exit, wait for next time;
S6, read impulse speed and GPS velocity amplitude;
S7, judge that whether the difference of both speed of impulse speed and GPS velocity amplitude exceeds setting value, in this way, enters step S8; As no, exit, wait for next time;
S8, set pulse velocity sag sign, impulse speed anomalous counts is clear 0, and choosing current residing location point is A point, reads as prepulse accumulative mileage SA, and GPS accumulative mileage is clear 0, opens GPS mileage statistics;
S9, judge that whether GPS is in navigational state, in this way, enter step S11; As no, enter step S10;
S10, impulse speed anomalous counts clear 0;
S11, impulse speed anomalous counts add 1;
S12, judge that whether impulse speed anomalous counts value is greater than setting value, in this way, enters step S13; As no, exit, wait for next time;
S13, to choose current location point be B point, reads pulse accumulative mileage SB and GPS accumulative mileage S that B is ordered;
Impulse ratio k2 after S14, calculating calibration, k2=k1* (SB-SA)/S;
S15, impulse speed abnormality mark are clear 0, and impulse speed anomalous counts is clear 0, the impulse ratio after calibration is stored in the storer of original storage k1 value, and replaces k1 with k2, so far impulse ratio calibration end.
Automobile travel recorder of the present invention has gps signal receiver module and pulse collection module, has impulse speed acquisition function, pulse mileage statistical function and GPS mileage statistical function; And the present invention's unbalanced pulse coefficient calibration automatically, without manual intervention, use timing mechanism, when reaching timing, just enter follow-up calibration flow process, otherwise exit, effectively like this guaranteed that automobile travel recorder also can other task of real-time response when carrying out pulse matching task.
For rear dress market, adopt after method of the present invention, the problem that can avoid every technician who fills a kind of car and need automobile travel recorder manufacturer to calibrate pulsatile once coefficient, without the impulse ratio to registering instrument, calibrate, greatly save human cost and technician's trip expenses, improved work efficiency and client's satisfaction.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. an automobile travel recorder impulse ratio automatic calibrating method, is characterized in that comprising step:
S1, system initialization, pulse velocity abnormality mark is clear 0, and reads the impulse ratio value k1 before calibration;
S2, pulse velocity gather and add up pulse mileage, and opening timing device;
S3, judge whether to arrive timing, in this way, enter step S4; As no, exit, wait for next time;
S4, judge whether impulse speed abnormality mark is set, in this way, enter step S9; As no, enter step S5;
S5, judge that whether GPS is in navigational state, in this way, enter step S6; As no, exit, wait for next time;
S6, read impulse speed and GPS velocity amplitude;
S7, judge that whether the difference of both speed of impulse speed and GPS velocity amplitude exceeds setting value, in this way, enters step S8; As no, exit, wait for next time;
S8, set pulse velocity sag sign, impulse speed anomalous counts is clear 0, and choosing current residing location point is A point, reads as prepulse accumulative mileage SA, and GPS accumulative mileage is clear 0, opens GPS mileage statistics;
S9, judge that whether GPS is in navigational state, in this way, enter step S11; As no, enter step S10;
S10, impulse speed anomalous counts clear 0;
S11, impulse speed anomalous counts add 1;
S12, judge that whether impulse speed anomalous counts value is greater than setting value, in this way, enters step S13; As no, exit, wait for next time;
S13, to choose current location point be B point, reads pulse accumulative mileage SB and GPS accumulative mileage S that B is ordered;
Impulse ratio k2 after S14, calculating calibration, k2=k1* (SB-SA)/S;
S15, impulse speed abnormality mark are clear 0, and impulse speed anomalous counts is clear 0, the impulse ratio after calibration is stored in the storer of original storage k1 value, and replaces k1 with k2, so far impulse ratio calibration end.
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| CN201310013451.4A CN103927796A (en) | 2013-01-11 | 2013-01-11 | Automatic calibration method of pulse coefficient of automobile traveling data recorder |
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| CN201310013451.4A CN103927796A (en) | 2013-01-11 | 2013-01-11 | Automatic calibration method of pulse coefficient of automobile traveling data recorder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361650A (en) * | 2014-10-24 | 2015-02-18 | 成都亿盟恒信科技有限公司 | Method for automatically calibrating pulse factor of vehicle traveling data recorder |
| CN104374406A (en) * | 2014-11-11 | 2015-02-25 | 福建星海通信科技有限公司 | Method for calculating approximate value of pulse factor according to GPS data |
| CN106168631A (en) * | 2016-08-27 | 2016-11-30 | 河源华盈科技有限公司 | A kind of automobile speed pulse hunting and terminal pulse coefficient calibration instrument and method |
| CN111198775A (en) * | 2019-12-19 | 2020-05-26 | 潍柴动力股份有限公司 | Method and system for correcting abnormal EEPROM storage state and motor vehicle |
| CN113267201A (en) * | 2021-06-24 | 2021-08-17 | 东风华神汽车有限公司 | Vehicle mileage correction method, device, equipment and readable storage medium |
| CN115218922A (en) * | 2022-09-05 | 2022-10-21 | 杭叉集团股份有限公司 | AGV data calibration system and method |
| CN115235508A (en) * | 2022-09-08 | 2022-10-25 | 四川科泰智能电子有限公司 | Vehicle mileage self-correcting method and system |
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Patent Citations (6)
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| JPH08178681A (en) * | 1994-12-26 | 1996-07-12 | Toyota Motor Corp | Hybrid navigation system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361650A (en) * | 2014-10-24 | 2015-02-18 | 成都亿盟恒信科技有限公司 | Method for automatically calibrating pulse factor of vehicle traveling data recorder |
| CN104374406A (en) * | 2014-11-11 | 2015-02-25 | 福建星海通信科技有限公司 | Method for calculating approximate value of pulse factor according to GPS data |
| CN106168631A (en) * | 2016-08-27 | 2016-11-30 | 河源华盈科技有限公司 | A kind of automobile speed pulse hunting and terminal pulse coefficient calibration instrument and method |
| CN111198775A (en) * | 2019-12-19 | 2020-05-26 | 潍柴动力股份有限公司 | Method and system for correcting abnormal EEPROM storage state and motor vehicle |
| CN111198775B (en) * | 2019-12-19 | 2023-07-18 | 潍柴动力股份有限公司 | Method and system for correcting EEPROM storage state abnormality and motor vehicle |
| CN113267201A (en) * | 2021-06-24 | 2021-08-17 | 东风华神汽车有限公司 | Vehicle mileage correction method, device, equipment and readable storage medium |
| CN115218922A (en) * | 2022-09-05 | 2022-10-21 | 杭叉集团股份有限公司 | AGV data calibration system and method |
| CN115235508A (en) * | 2022-09-08 | 2022-10-25 | 四川科泰智能电子有限公司 | Vehicle mileage self-correcting method and system |
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Application publication date: 20140716 |