CN102650693A - Method for correcting navigation mileage measurement signal of navigator - Google Patents
Method for correcting navigation mileage measurement signal of navigator Download PDFInfo
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- CN102650693A CN102650693A CN2012101916571A CN201210191657A CN102650693A CN 102650693 A CN102650693 A CN 102650693A CN 2012101916571 A CN2012101916571 A CN 2012101916571A CN 201210191657 A CN201210191657 A CN 201210191657A CN 102650693 A CN102650693 A CN 102650693A
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Abstract
The invention relates to a working method of a navigator, which is used for correcting a navigation mileage measurement signal. The adopted navigator comprises a central processing unit (CPU), a storage device, a pulse counter and a geomagnetic compass navigation module, wherein the pulse counter is used for inducting the rotation of wheels and outputting a pulse number which corresponds to the number of turns of the rotation of the wheels. The working method of the navigator comprises the following steps of: recording the pulse number output by the pulse counter by the CPU at regular intervals or through user control on a road section on which current vehicles run past, and working out the distance which corresponds to a single pulse according to the length of the road section; then, updating the distance which corresponds to the single pulse prestored in the storage device; and performing real-time path navigation through the pulse number acquired by the pulse counter in unit time, the distance which corresponds to the single pulse and the geomagnetic compass navigation module when the CPU judges that a global positioning system (GPS) signal does not exist currently or the GPS signal is invalid.
Description
Technical field
The present invention relates to the technical field of the method for work of navigating instrument, specifically is the bearing calibration of a kind of navigation of navigating instrument with the mileage metering signal.
Background technology
At present; When the vehicle that is equipped with navigating instrument (is called for short: (for example: in the time of the path between tunnel, intermountain path or the city high rise building) current vehicle) get into zone that gps signal is blocked or highway section; The general rotating cycle that adopts the impulse meter of being located on the wheel to obtain wheel in the certain hour of existing vehicle; And then obtain the mileage of this vehicle in this time period, combine earth magnetism dead reckoning module simultaneously, when gps signal is invalid, to implement navigation work.
The weak point of above-mentioned prior art is: the tire pressure of wheel regularly changes; After there are wearing and tearing in wheel tyre or more renew tire; Cause wheel diameter exist to change, and then make the accuracy of the described vehicle mileage that obtains according to the mode of step-by-step counting not enough.
Summary of the invention
The technical matters that the present invention will solve provides a kind of method of work of navigating instrument, is used for proofreading and correct navigation and uses the mileage metering signal.
For solving the problems of the technologies described above; The method of work of navigating instrument provided by the invention; The navigating instrument that adopts comprises: CPU element, the storer that links to each other with this CPU element, the impulse meter that links to each other with this CPU element and the earth magnetism dead reckoning module that is used to respond to the current vehicle sense of displacement that links to each other with this CPU element, and impulse meter is used to respond to wheel rotation and output and the corresponding umber of pulse of wheel rotating cycle; The method of work of this navigating instrument comprises: said CPU element regularly or through the user is controlled; The umber of pulse of the said impulse meter output of record on the highway section that current vehicle crosses; And calculate the corresponding distance of individual pulse according to the length gauge in this highway section, upgrade the corresponding distance of individual pulse that prestores in the said storer then; When CPU element judged that current no gps signal or gps signal are invalid, distance and earth magnetism dead reckoning module that umber of pulse, the described individual pulse that in the unit interval, obtains through said impulse meter is corresponding were carried out the real-time route navigation.
As preferred scheme, described highway section is the craspedodrome highway section, and this highway section is not shorter than 500m; This highway section is long more, and the distance that said individual pulse is corresponding is accurate more.
As further preferred scheme, the routing information of putting down in writing in the GPS information of starting point and the terminal point of the length in said highway section through this highway section and the map data base of navigating instrument that is between said starting point and the terminal point calculates.
As the preferred scheme of another kind, said navigating instrument also comprises touch-screen or the voice input module that links to each other with this CPU element; The length in said highway section is obtained according to the indication numerical value of the highway mileage upright stone tablet of the starting point in this highway section and destination county by the user, and by the user through said touch-screen or voice input module input.Adopt the mode of phonetic entry control command, have convenient, the timely and higher characteristics of security of input.Adopt the mode of touch-screen input of control commands, have the advantages that reliability is higher, avoid interference.
As further preferred scheme, in the process that current vehicle is gone,, then judge current vehicle generation lane change if said CPU element is stirred through the steering indicating light driving lever of a steering indicating light sensor current vehicle on said highway section, and record lane change number of times; Calculate according to the length gauge in this highway section individual pulse corresponding apart from the time, according to the lane change total degree, increase the length in highway section; Every lane change once, the length in said highway section just increases 1-2m.Record lane change number of times is also considered to be suitable for improving the measuring accuracy of the corresponding distance of described individual pulse because of the error of lane change to road section length calculating.
As further preferred scheme, said navigating instrument also comprises touch-screen or the voice input module that links to each other with this CPU element; When current vehicle successively arrived starting point and the terminal point in said highway section, the user made said CPU element successively write down the starting point in this highway section and the GPS information of terminal point through said touch-screen or voice input module input of control commands.Adopt the mode of phonetic entry control command, have convenient, the timely and higher characteristics of security of input.Adopt the mode of touch-screen input of control commands, have the advantages that reliability is higher, avoid interference.
The technique effect that the present invention has: the navigation of navigating instrument of the present invention is with the bearing calibration of mileage metering signal; Umber of pulse through the said impulse meter output of record on the highway section of crossing in current vehicle; And calculate the corresponding distance of individual pulse according to the length gauge in this highway section; Upgrade the corresponding distance of individual pulse that prestores in the said storer then, and then realize proofreading and correct navigation and use the mileage metering signal.Under no gps signal or gps signal is invalid and current location is known situation, the umber of pulse of in the unit interval, obtaining through said impulse meter, the distance that described individual pulse is corresponding calculate operating range; Side by side the magnetic compass navigation module is suitable for providing the current vehicle sense of displacement, and the CPU element of navigating instrument combines map data base to carry out the real-time route navigation.
Description of drawings
For content of the present invention is more clearly understood, below basis specific embodiment and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the circuit structure block diagram of navigating instrument of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
(embodiment 1)
Like Fig. 1; The navigating instrument of present embodiment comprises: CPU element, the storer that links to each other with this CPU element, the impulse meter that links to each other with this CPU element, the map data base that links to each other with this CPU element, link to each other with this CPU element be used to respond to the earth magnetism dead reckoning module of current vehicle sense of displacement and the GPS module that is used to obtain gps signal that links to each other with this CPU element, impulse meter is used to respond to wheel rotation and output and the corresponding umber of pulse of wheel rotating cycle.
The method of work of above-mentioned navigating instrument comprises: said CPU element regularly or through the user is controlled; The umber of pulse of the said impulse meter output of record on the highway section that current vehicle crosses; And calculate the corresponding distance of individual pulse according to the length gauge in this highway section, upgrade the corresponding distance of individual pulse that prestores in the said storer then; When CPU element judged that current no gps signal or gps signal are invalid, distance and earth magnetism dead reckoning module that umber of pulse, the described individual pulse that in the unit interval, obtains through said impulse meter is corresponding were carried out the real-time route navigation.The said unit interval is 1-5 second; When the speed of a motor vehicle during less than 20Km/h, the described unit interval is 4 or 5 seconds; When the speed of a motor vehicle was in 20-40Km/h, the unit interval was 3 or 4 seconds; When the speed of a motor vehicle was in 40-60Km/h, the unit interval was 2 or 3 seconds; When the speed of a motor vehicle was in 60-80Km/h, the unit interval was 2 seconds; When the speed of a motor vehicle during greater than 80Km/h, the unit interval is 1 second.And then real-time and the accuracy of navigation, location have been improved.
Described highway section be the craspedodrome highway section (when promptly on this highway section, going, current vehicle not at the parting of the ways or the T-shaped road junction turn to), the long 1Km in this highway section.
The routing information of putting down in writing in the GPS information of starting point and the terminal point of the length in said highway section through this highway section and the map data base of navigating instrument that is between said starting point and the terminal point calculates.
In the process that current vehicle is gone,, then judge current vehicle generation lane change if said CPU element is stirred through the steering indicating light driving lever of a steering indicating light sensor current vehicle on said highway section, and record lane change number of times; Calculate according to the length gauge in this highway section individual pulse corresponding apart from the time, according to the lane change total degree, increase the length in highway section; Every lane change once, the length in said highway section just increases 1-2m.The time correlation that the added value of road section length and lane change are required; If the lane change time is shorter than 3 seconds, then every lane change once, the added value of said road section length is 1-1.5m; If the lane change time is greater than 3 seconds, then every lane change once, the added value of said road section length is 1.5-2m.
Said navigating instrument also comprises touch-screen or the voice input module that links to each other with this CPU element; When current vehicle successively arrived starting point and the terminal point in said highway section, the user made said CPU element successively write down the starting point in this highway section and the GPS information of terminal point through said touch-screen or voice input module input of control commands.
The steering indicating light sensor adopts magnetic induction switch or the toggle switch that links to each other with said CPU, and whether the steering indicating light driving lever that is used to detect current vehicle is in zero-bit, left steering position or right turn position.
(embodiment 2)
On the basis of embodiment 1, the method for work of the navigating instrument of present embodiment has following modification:
Said navigating instrument also comprises touch-screen or the voice input module that links to each other with this CPU element; The length in said highway section is obtained according to the indication numerical value of the highway mileage upright stone tablet of the starting point in this highway section and destination county by the user of current vehicle; And when current vehicle successively arrives starting point and the destination county in this highway section, by said user successively through said touch-screen or voice input module input.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (6)
1. the method for work of a navigating instrument; Said navigating instrument comprises: CPU element, the storer that links to each other with this CPU element, the impulse meter that links to each other with this CPU element and the earth magnetism dead reckoning module that is used to respond to the current vehicle sense of displacement that links to each other with this CPU element, and impulse meter is used to respond to wheel rotation and output and the corresponding umber of pulse of wheel rotating cycle; The method of work that it is characterized in that this navigating instrument comprises:
Said CPU element regularly or through the user is controlled; The umber of pulse of the said impulse meter output of record on the highway section that current vehicle crosses; And calculate the corresponding distance of individual pulse according to the length gauge in this highway section, upgrade the corresponding distance of individual pulse that prestores in the said storer then;
When CPU element judged that current no gps signal or gps signal are invalid, distance and earth magnetism dead reckoning module that umber of pulse, the described individual pulse that in the unit interval, obtains through said impulse meter is corresponding were carried out the real-time route navigation.
2. the method for work of navigating instrument according to claim 1, it is characterized in that: described highway section is the craspedodrome highway section, and this highway section is not shorter than 500m.
3. the method for work of navigating instrument according to claim 2 is characterized in that: the routing information of putting down in writing in the GPS information of starting point and the terminal point of the length in said highway section through this highway section and the map data base of navigating instrument that is between said starting point and the terminal point calculates.
4. the method for work of navigating instrument according to claim 2, it is characterized in that: said navigating instrument also comprises touch-screen or the voice input module that links to each other with this CPU element;
The length in said highway section is obtained according to the indication numerical value of the highway mileage upright stone tablet of the starting point in this highway section and destination county by the user, and by the user through said touch-screen or voice input module input.
5. according to the method for work of one of claim 1-4 described navigating instrument; It is characterized in that: in the process that current vehicle is gone on said highway section; If said CPU element is stirred through the steering indicating light driving lever of a steering indicating light sensor current vehicle; Then judge current vehicle generation lane change, and record lane change number of times; Calculate according to the length gauge in this highway section individual pulse corresponding apart from the time, according to the lane change total degree, increase the length in highway section; Every lane change once, the length in said highway section just increases 1-2m.
6. the method for work of navigating instrument according to claim 3, it is characterized in that: said navigating instrument also comprises touch-screen or the voice input module that links to each other with this CPU element;
When current vehicle successively arrived starting point and the terminal point in said highway section, the user made said CPU element successively write down the starting point in this highway section and the GPS information of terminal point through said touch-screen or voice input module input of control commands.
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| CN2012101916571A CN102650693A (en) | 2012-06-12 | 2012-06-12 | Method for correcting navigation mileage measurement signal of navigator |
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Cited By (10)
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| CN103161121A (en) * | 2013-03-19 | 2013-06-19 | 南京道润交通科技有限公司 | Automatic mileage stake mark calibration method, system and method |
| CN103364008A (en) * | 2013-07-30 | 2013-10-23 | 苏州翼凯通信科技有限公司 | GPS based vehicle-mounted mileage measuring and calculating system |
| CN103925921A (en) * | 2014-04-25 | 2014-07-16 | 上海斐讯数据通信技术有限公司 | Assistant locating device and method based on electronic compass and pedometer |
| CN104949686A (en) * | 2014-03-24 | 2015-09-30 | 陕西重型汽车有限公司 | Automatic kilometer pulse number calibration method and system for speedometer |
| CN108036802A (en) * | 2018-02-08 | 2018-05-15 | 衢州职业技术学院 | A kind of robot odometer correction system of view-based access control model |
| CN108549091A (en) * | 2018-03-28 | 2018-09-18 | 湖南华宏铁路高新科技开发有限公司 | A kind of GPS adds the system and method for wheel footpath derivation one bar, one file data |
| CN109856648A (en) * | 2018-12-29 | 2019-06-07 | 北京市计量检测科学研究院 | A kind of net about vehicle is had the records of distance by the log timing detection device and method |
| CN110723484A (en) * | 2019-09-26 | 2020-01-24 | 兰剑智能科技股份有限公司 | Shuttle vehicle walking automatic deviation rectifying method and device, computer equipment and storage medium |
| CN114492713A (en) * | 2021-12-31 | 2022-05-13 | 河南牧原智能科技有限公司 | Inspection method and equipment for breeding fence and computer-readable storage medium |
| CN117346804A (en) * | 2022-06-29 | 2024-01-05 | 保时捷(上海)数字科技有限公司 | Navigation method and device, and corresponding mobile device, computer device and medium |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161121A (en) * | 2013-03-19 | 2013-06-19 | 南京道润交通科技有限公司 | Automatic mileage stake mark calibration method, system and method |
| CN103364008A (en) * | 2013-07-30 | 2013-10-23 | 苏州翼凯通信科技有限公司 | GPS based vehicle-mounted mileage measuring and calculating system |
| CN103364008B (en) * | 2013-07-30 | 2015-08-12 | 苏州翼凯通信科技有限公司 | Based on the vehicle-mounted mileage calculating system of GPS |
| CN104949686A (en) * | 2014-03-24 | 2015-09-30 | 陕西重型汽车有限公司 | Automatic kilometer pulse number calibration method and system for speedometer |
| CN103925921A (en) * | 2014-04-25 | 2014-07-16 | 上海斐讯数据通信技术有限公司 | Assistant locating device and method based on electronic compass and pedometer |
| CN108036802A (en) * | 2018-02-08 | 2018-05-15 | 衢州职业技术学院 | A kind of robot odometer correction system of view-based access control model |
| CN108549091A (en) * | 2018-03-28 | 2018-09-18 | 湖南华宏铁路高新科技开发有限公司 | A kind of GPS adds the system and method for wheel footpath derivation one bar, one file data |
| CN109856648A (en) * | 2018-12-29 | 2019-06-07 | 北京市计量检测科学研究院 | A kind of net about vehicle is had the records of distance by the log timing detection device and method |
| CN109856648B (en) * | 2018-12-29 | 2021-04-23 | 北京市计量检测科学研究院 | Online taxi appointment, taxi and timing detection device and method |
| CN110723484A (en) * | 2019-09-26 | 2020-01-24 | 兰剑智能科技股份有限公司 | Shuttle vehicle walking automatic deviation rectifying method and device, computer equipment and storage medium |
| CN114492713A (en) * | 2021-12-31 | 2022-05-13 | 河南牧原智能科技有限公司 | Inspection method and equipment for breeding fence and computer-readable storage medium |
| CN117346804A (en) * | 2022-06-29 | 2024-01-05 | 保时捷(上海)数字科技有限公司 | Navigation method and device, and corresponding mobile device, computer device and medium |
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Application publication date: 20120829 |