CN201622076U - Vehicle-mounted equipment - Google Patents
Vehicle-mounted equipment Download PDFInfo
- Publication number
- CN201622076U CN201622076U CN2010201134994U CN201020113499U CN201622076U CN 201622076 U CN201622076 U CN 201622076U CN 2010201134994 U CN2010201134994 U CN 2010201134994U CN 201020113499 U CN201020113499 U CN 201020113499U CN 201622076 U CN201622076 U CN 201622076U
- Authority
- CN
- China
- Prior art keywords
- analog
- mobile unit
- digital converter
- vehicle
- cpu
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Navigation (AREA)
- Gyroscopes (AREA)
Abstract
The utility model discloses vehicle-mounted equipment which comprises a gyroscope, a CPU and an analog-to-digital converter, wherein the analog-to-digital converter is electrically connected with the gyroscope and the CPU. By adding a high-precision analog-to-digital converting chip, and adopting special equipment for analog-to-digital conversion, the vehicle-mounted equipment reduces computing burden of the CPU, and has no data deviation in the conversion process, so as to ensure the positioning precision of the vehicle-mounted equipment, and provide convenience for the normal driving of a vehicle owner.
Description
Technical field
The utility model relates to a kind of mobile unit, particularly relates 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.
The utility model content
The technical problems to be solved in the utility model 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 utility model solves above-mentioned technical matters by following technical proposals:
A kind of mobile unit, it comprises gyroscope and CPU, and its characteristics are that this mobile unit also comprises an analog to digital converter, and this analog to digital converter is electrically connected with described gyroscope and CPU.
Wherein, this gyroscope calculates vehicle when the next position for being used for according to vehicle speed signal, with respect to the deflection angle of previous position and the gyroscope of distance.
Wherein, this analog to digital converter is the analog to digital converter that the simulating signal of the deflection angle that is used for the gyroscope transmission is come and distance changes into digital signal.
Wherein, this CPU is the digital signal that is used for according to analog to digital converter output, and navigation matching algorithm in completing place obtains the CPU of the latitude and longitude information of the next position of vehicle.
Preferably, described analog to digital converter is high-precision analog to digital converter.
Preferably, described analog to digital converter is the modulus conversion chip of 6bit, 8bit, 12bit or the above figure place of 12bit.
Preferably, this mobile unit comprises that also one is used for obtaining from satellite the longitude and latitude positional information of vehicle, and passes to the GPS module of CPU.
Another technical scheme of the present utility model 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 utility model is: mobile unit of the present utility model 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 the utility model preferred embodiment.
Fig. 2 is the process flow diagram of the mobile unit air navigation aid of the utility model preferred embodiment.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 1, mobile unit of the present utility model comprises gyroscope 3, CPU1, and this mobile unit also comprises an analog to digital converter 2 (ADC), and this analog to digital converter 2 is electrically connected with aforesaid gyroscope 3 and CPU1.Wherein, the gyroscope 3 in the present embodiment 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; And 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 can also comprise 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 utility model, 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 embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these embodiments.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (7)
1. mobile unit, it comprises gyroscope and CPU, it is characterized in that, and this mobile unit also comprises an analog to digital converter, and this analog to digital converter is electrically connected with described gyroscope and CPU.
2. mobile unit as claimed in claim 1 is characterized in that, this gyroscope calculates vehicle when the next position for being used for according to vehicle speed signal, with respect to the deflection angle of previous position and the gyroscope of distance.
3. mobile unit as claimed in claim 2 is characterized in that, this analog to digital converter is the analog to digital converter that the simulating signal of the deflection angle that is used for the gyroscope transmission is come and distance changes into digital signal.
4. mobile unit as claimed in claim 3 is characterized in that, this CPU is the digital signal that is used for according to analog to digital converter output, and navigation matching algorithm in completing place obtains the CPU of the latitude and longitude information of the next position of vehicle.
5. mobile unit as claimed in claim 1 is characterized in that, described analog to digital converter is high-precision analog to digital converter.
6. mobile unit as claimed in claim 1 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.
7. as any described mobile unit of claim 1-6, it is characterized in that this mobile unit comprises that also one is used for obtaining from satellite the longitude and latitude positional information of vehicle, and passes to the GPS module of CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201134994U CN201622076U (en) | 2010-02-11 | 2010-02-11 | Vehicle-mounted equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201134994U CN201622076U (en) | 2010-02-11 | 2010-02-11 | Vehicle-mounted equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622076U true CN201622076U (en) | 2010-11-03 |
Family
ID=43025533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201134994U Expired - Lifetime CN201622076U (en) | 2010-02-11 | 2010-02-11 | Vehicle-mounted equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155954A (en) * | 2010-02-11 | 2011-08-17 | 上海博泰悦臻电子设备制造有限公司 | Vehicular equipment and navigation method thereof |
-
2010
- 2010-02-11 CN CN2010201134994U patent/CN201622076U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155954A (en) * | 2010-02-11 | 2011-08-17 | 上海博泰悦臻电子设备制造有限公司 | Vehicular equipment and navigation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101447133B (en) | Terminal for collecting traffic information and method of generating traffic information | |
| CN109443347A (en) | System and corresponding method for land vehicle navigation | |
| CN105973243A (en) | Vehicle-mounted inertial navigation system | |
| CN103069469A (en) | Altitude estimation apparatus, altitude estimation method, and program | |
| CN105300395A (en) | Navigation and positioning method and device | |
| CN101334288A (en) | Public transport bus exact stop method based on standard line matching | |
| JP5254104B2 (en) | POSITION INFORMATION ACQUISITION DEVICE, POSITION INFORMATION ACQUISITION SYSTEM, POSITION INFORMATION ACQUISITION METHOD, AND PROGRAM | |
| CN102313553A (en) | Positioning system, communication device, positioning method | |
| CN102680002B (en) | Online calibrating method of zero-point voltage of micro-machine gyroscope for automobile | |
| CN102740457A (en) | Method for preventing drift of mobile positioning of terminal | |
| CN105783921A (en) | Method for correcting automobile attitude data, and apparatus thereof | |
| CN102826122A (en) | Automobile steering wheel rotation angle sensing system, steering control method and automobile | |
| CN108780157A (en) | Utilize dynamic calibration and/or the automobile dead reckoning of dynamic weighting | |
| CN107782335A (en) | A kind of contactless line detection system inertial navigation and laser range finder self-calibrating method | |
| CN106093992A (en) | A kind of sub-meter grade combined positioning and navigating system based on CORS and air navigation aid | |
| CN103900566A (en) | Method for eliminating influence on accuracy of rotating modulation strapdown inertial navigation system caused by earth rotation angular velocity | |
| US20190250007A1 (en) | Navigation method and navigation system | |
| CN101071069A (en) | On-board driving information wireless transceiving device | |
| CN204286452U (en) | A kind of indoor locating system for vehicle | |
| CN203519012U (en) | Navigation positioning system based on 3D (three-dimensional) sensor and auxiliary mobile phone | |
| CN201622076U (en) | Vehicle-mounted equipment | |
| CN202631738U (en) | Sensor auxiliary vehicle positioning system designed based on handset | |
| CN101482418A (en) | Navigation apparatus and method for correcting route according to travelling information | |
| CN103557869A (en) | Vehicle-mounted navigator | |
| CN101581583A (en) | Navigation positioning system for moving object |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |