CN102155954A - Vehicular equipment and navigation method thereof - Google Patents
Vehicular equipment and navigation method thereof Download PDFInfo
- Publication number
- CN102155954A CN102155954A CN2010101100225A CN201010110022A CN102155954A CN 102155954 A CN102155954 A CN 102155954A CN 2010101100225 A CN2010101100225 A CN 2010101100225A CN 201010110022 A CN201010110022 A CN 201010110022A CN 102155954 A CN102155954 A CN 102155954A
- Authority
- CN
- China
- Prior art keywords
- analog
- digital converter
- vehicle
- mobile unit
- digital
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Navigation (AREA)
Abstract
The invention discloses vehicular equipment. The vehicular equipment comprises a gyroscope, an analog-to-digital converter and a central processing unit (CPU), wherein the gyroscope is used for computing a deflection angle and a deflection distance of a vehicle at a next position relative to a previous position according to a speed signal of the vehicle; the analog-to-digital converter is used for converting the analog signals, which are sent by the gyroscope, of the deflection angle and the deflection distance into the digital signals; and the CPU is used for implementing a position navigation matching algorithm according to the digital signals output by the analog-to-digital converter so as to acquire longitudinal information and latitudinal information of the vehicle at the next position. The invention also discloses a navigation method of the vehicular equipment. In the vehicular equipment, an analog-to-digital converting chip with high precision is added, and special equipment is used for analog-to-digital conversion, so the computing burden of the CPU is lightened, data deviation is avoided during conversion, and then the locating precision of the vehicular equipment is guaranteed and normal driving of a driver is facilitated.
Description
Technical field
The present invention relates to a kind of mobile unit and air navigation aid thereof, particularly relate to a kind of mobile unit and air navigation aid thereof that improves bearing accuracy.
Background technology
In the present mobile unit field, the shift position majority of vehicle is that the mode with arrow is carried out real-time demonstration on the display screen of navigator, and this is because the GPS module of mobile unit also is to obtain the longitude and latitude positional information of vehicle in real time from satellite.But when the GPS module does not receive satellite-signal, such as in the tunnel, travelling or in underground garage the time, just need gyroscope to calculate vehicle when next position, deflection angle and distance with respect to previous position, pass to the CPU of mobile unit then, by CPU completing place matching algorithm, obtain the latitude and longitude information of vehicle in next position.Make the current location that can demonstrate vehicle on the display screen in real time.But the equipment that this mode is not changed specially to simulating signal, one side has increased the weight of the burden of the CPU of mobile unit, on the other hand, do not carry out analog-to-digital equipment specially, it is not high to carry out conversion accuracy by CPU, can make data produce distortion, has influenced accuracy of navigation.
Summary of the invention
The technical problem to be solved in the present invention is to overcome mobile unit of the prior art to have data deviation, CPU burden heavily to wait defective in analog-digital conversion process, and no datat deviation in a kind of analog-digital conversion process, mobile unit that bearing accuracy is high are provided.
The present invention solves above-mentioned technical matters by following technical proposals:
A kind of mobile unit, its characteristics are that it comprises:
One gyroscope is used for calculating vehicle when the next position according to vehicle speed signal, with respect to the deflection angle and the distance of previous position;
One analog to digital converter is used for the deflection angle that the gyroscope transmission is next and the simulating signal of distance and changes into digital signal;
One CPU is used for the digital signal according to analog to digital converter output, and navigation matching algorithm in completing place obtains the latitude and longitude information of the next position of vehicle.
Wherein, described analog to digital converter is high-precision analog to digital converter.
Wherein, described analog to digital converter is the modulus conversion chip of 6bit, 8bit, 12bit or the above figure place of 12bit.
Wherein, described analog to digital converter is connected to described CPU by the synchronous serial interface communications protocol.
Wherein, this mobile unit also comprises a GPS module, is used for obtaining from satellite the longitude and latitude positional information of vehicle, and passes to CPU.
Another technical scheme of the present invention is: a kind of air navigation aid of aforesaid mobile unit, and its characteristics are that it may further comprise the steps:
S
1, gyroscope calculates vehicle when the next position according to vehicle speed signal, with respect to the deflection angle and the distance of previous position, and is delivered to analog to digital converter;
S
2, analog to digital converter deflection angle that the gyroscope transmission is come and the simulating signal of distance change into digital signal;
S
3, CPU is according to the digital signal of analog to digital converter output, navigation matching algorithm in completing place obtains the latitude and longitude information of the next position of vehicle.
Positive progressive effect of the present invention is: mobile unit of the present invention is by increasing high-precision modulus conversion chip, adopt special equipment to carry out analog to digital conversion, alleviated the computational burden of CPU, and there is not data deviation in the transfer process, thereby guaranteed the bearing accuracy of mobile unit, be car owner's the normal driving condition of providing convenience.
Description of drawings
Fig. 1 is the structural representation of the mobile unit of preferred embodiment of the present invention.
Fig. 2 is the process flow diagram of the mobile unit air navigation aid of preferred embodiment of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 1, mobile unit of the present invention comprises gyroscope 3, is used for calculating vehicle when the next position according to vehicle speed signal, with respect to the deflection angle and the distance of previous position; Analog to digital converter 2 is used for that gyroscope 3 is transmitted next deflection angle and the simulating signal of distance changes into digital signal; CPU1 is used for the digital signal according to analog to digital converter 2 outputs, and navigation matching algorithm in completing place obtains the latitude and longitude information of the next position of vehicle.For guaranteeing the high precision of simulating signal when digital signal is changed, analog to digital converter in the present embodiment is selected the modulus conversion chip of 12bit for use, those skilled in the art also can select other high-precision modulus conversion chips for use, such as the modulus conversion chip of 6bit, 8bit or the above figure place of 12bit.Modulus conversion chip is connected to CPU1 by SPI (synchronous serial interface) communications protocol.Mobile unit also comprises a GPS module 4, is used for obtaining from satellite the longitude and latitude positional information of vehicle, and passes to CPU1.
Be illustrated in figure 2 as the air navigation aid of mobile unit of the present invention, may further comprise the steps:
Step 101, gyroscope calculate vehicle when the next position according to vehicle speed signal, with respect to the deflection angle and the distance of previous position, and are delivered to analog to digital converter; Wherein, the principle that gyroscope calculates deflection angle and distance is the general knowledge of those skilled in the art's well-known, does not repeat them here.
The deflection angle that step 102, analog to digital converter are come the gyroscope transmission and the simulating signal of distance change into digital signal;
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.
Claims (6)
1. mobile unit is characterized in that it comprises:
One gyroscope is used for calculating vehicle when the next position according to vehicle speed signal, with respect to the deflection angle and the distance of previous position;
One analog to digital converter is used for the deflection angle that the gyroscope transmission is next and the simulating signal of distance and changes into digital signal;
One CPU is used for the digital signal according to analog to digital converter output, and navigation matching algorithm in completing place obtains the latitude and longitude information of the next position of vehicle.
2. mobile unit as claimed in claim 1 is characterized in that, described analog to digital converter is high-precision analog to digital converter.
3. mobile unit as claimed in claim 2 is characterized in that, described analog to digital converter is the modulus conversion chip of 6bit, 8bit, 12bit or the above figure place of 12bit.
4. mobile unit as claimed in claim 1 is characterized in that described analog to digital converter is connected to described CPU by the synchronous serial interface communications protocol.
5. mobile unit as claimed in claim 1 is characterized in that, this mobile unit also comprises a GPS module, is used for obtaining from satellite the longitude and latitude positional information of vehicle, and passes to CPU.
6. the air navigation aid of a mobile unit as claimed in claim 1 is characterized in that, it may further comprise the steps:
S
1, gyroscope calculates vehicle when the next position according to vehicle speed signal, with respect to the deflection angle and the distance of previous position, and is delivered to analog to digital converter;
S
2, analog to digital converter deflection angle that the gyroscope transmission is come and the simulating signal of distance change into digital signal;
S
3, CPU is according to the digital signal of analog to digital converter output, navigation matching algorithm in completing place obtains the latitude and longitude information of the next position of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101100225A CN102155954A (en) | 2010-02-11 | 2010-02-11 | Vehicular equipment and navigation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101100225A CN102155954A (en) | 2010-02-11 | 2010-02-11 | Vehicular equipment and navigation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102155954A true CN102155954A (en) | 2011-08-17 |
Family
ID=44437537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101100225A Pending CN102155954A (en) | 2010-02-11 | 2010-02-11 | Vehicular equipment and navigation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102155954A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111757001A (en) * | 2020-06-30 | 2020-10-09 | 浩鲸云计算科技股份有限公司 | Real-time optimal camera selection and linkage intelligent solution based on case place |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5773616A (en) * | 1980-10-25 | 1982-05-08 | Furuno Electric Co Ltd | Navigation device |
| US20040210387A1 (en) * | 2001-04-06 | 2004-10-21 | Arne Friedrichs | Method for operating a navigation system for a vehicle |
| CN101033975A (en) * | 2006-03-10 | 2007-09-12 | 上海乐金广电电子有限公司 | Mobile position information measuring and calculating device |
| CN201331348Y (en) * | 2009-01-06 | 2009-10-21 | 山东科沐华信息技术有限公司 | Combined GPS vehicle terminal |
| CN201359500Y (en) * | 2009-02-27 | 2009-12-09 | 启明信息技术股份有限公司 | GPS/DR combined navigation device for vehicle |
| CN201622076U (en) * | 2010-02-11 | 2010-11-03 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted equipment |
-
2010
- 2010-02-11 CN CN2010101100225A patent/CN102155954A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5773616A (en) * | 1980-10-25 | 1982-05-08 | Furuno Electric Co Ltd | Navigation device |
| US20040210387A1 (en) * | 2001-04-06 | 2004-10-21 | Arne Friedrichs | Method for operating a navigation system for a vehicle |
| CN101033975A (en) * | 2006-03-10 | 2007-09-12 | 上海乐金广电电子有限公司 | Mobile position information measuring and calculating device |
| CN201331348Y (en) * | 2009-01-06 | 2009-10-21 | 山东科沐华信息技术有限公司 | Combined GPS vehicle terminal |
| CN201359500Y (en) * | 2009-02-27 | 2009-12-09 | 启明信息技术股份有限公司 | GPS/DR combined navigation device for vehicle |
| CN201622076U (en) * | 2010-02-11 | 2010-11-03 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111757001A (en) * | 2020-06-30 | 2020-10-09 | 浩鲸云计算科技股份有限公司 | Real-time optimal camera selection and linkage intelligent solution based on case place |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101334288B (en) | Public transport bus exact stop method based on standard line matching | |
| CN101447133B (en) | Terminal for collecting traffic information and method of generating traffic information | |
| CN101586962B (en) | Map feedback correction method of inertial navigation system | |
| WO2011065066A1 (en) | Navigation system and vehicle-mounted device | |
| CN105300395A (en) | Navigation and positioning method and device | |
| CN106840154B (en) | Underground space inertial measurement and wireless sensor combination positioning system and method | |
| CN103069469A (en) | Altitude estimation apparatus, altitude estimation method, and program | |
| JP5254104B2 (en) | POSITION INFORMATION ACQUISITION DEVICE, POSITION INFORMATION ACQUISITION SYSTEM, POSITION INFORMATION ACQUISITION METHOD, AND PROGRAM | |
| US20080082265A1 (en) | Accurate positioning system for a vehicle and its positioning method | |
| CN102313553A (en) | Positioning system, communication device, positioning method | |
| WO2007097245A1 (en) | Positioning system, positioning method and car navigation system | |
| CN104165641A (en) | Milemeter calibration method based on strapdown inertial navigation/laser velocimeter integrated navigation system | |
| CN104048663A (en) | Vehicular inertial navigation system and navigation method | |
| CN108780157B (en) | Vehicle dead reckoning using dynamic calibration and/or dynamic weighting | |
| CN114111775B (en) | Multi-sensor fusion positioning method and device, storage medium and electronic equipment | |
| CN102778686A (en) | Synergic vehicle positioning method based on mobile global positioning system (GPS)/inertial navigation system (INS) node | |
| CN113934775B (en) | Vehicle track map matching method, device, equipment and computer readable medium | |
| CN102980589A (en) | Method and device for automatically computing vehicle pulse factor via GPS (global positioning system) speed | |
| CN104864874A (en) | Low-cost single-gyroscope dead reckoning navigation method and system | |
| CN106093992A (en) | A kind of sub-meter grade combined positioning and navigating system based on CORS and air navigation aid | |
| CN112197780B (en) | Path planning method and device and electronic equipment | |
| CN102826122A (en) | Automobile steering wheel rotation angle sensing system, steering control method and automobile | |
| GB2492331A (en) | Means for estimating journey attributes based on mobile device journey data | |
| CN203519012U (en) | Navigation positioning system based on 3D (three-dimensional) sensor and auxiliary mobile phone | |
| CN104215255A (en) | Mobile terminal and operating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110817 |