CN206440833U - On-vehicle navigation apparatus - Google Patents
On-vehicle navigation apparatus Download PDFInfo
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- CN206440833U CN206440833U CN201720123656.1U CN201720123656U CN206440833U CN 206440833 U CN206440833 U CN 206440833U CN 201720123656 U CN201720123656 U CN 201720123656U CN 206440833 U CN206440833 U CN 206440833U
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Abstract
The utility model discloses a kind of on-vehicle navigation apparatus, including GPS module, navigation module, display module, MCU control module, RF receiving and transmission module and data processing module；Navigation module is connected with GPS module, display module respectively；MCU control module is connected with navigation module, RF receiving and transmission module respectively, and RF receiving and transmission module is connected with data processing module, and data processing module is connected with navigation module.Weaker or when can not receive gps signal in gps signal, the utility model can also realize navigation feature.
Description
Technical field
The utility model belongs to airmanship, and in particular to a kind of on-vehicle navigation apparatus.
Background technology
With the fast development of China's economy, the continuous popularization of private car, urban road changes more and more frequent, and road conditions become
It must become increasingly complex, user is increasingly dependent on vehicle mounted guidance, and vehicle factory is in order to meet consumer demand, and vehicle mounted guidance is almost
Become the standard configuration of automobile.
But, then traditional vehicle mounted guidance decodes position temporal information, but be due to letter by receiving satellite-signal
Influenceed by synoptic climate, terrain number in transmitting procedure, signal is disturbed by some multi signals again after the receipt, is caused
Error is located, even satellite-signal can not be received sometimes, it is impossible to which vehicle is positioned.
Therefore, it is necessary to develop a kind of new on-vehicle navigation apparatus.
The content of the invention
The purpose of this utility model is to provide a kind of on-vehicle navigation apparatus, gps signal it is weaker or can not receive GPS letter
Number when, navigation feature can be realized.
On-vehicle navigation apparatus described in the utility model, including GPS module, navigation module and display module, navigation module
It is connected respectively with GPS module, display module；The GPS module is used to position vehicle；The navigation module is according to positioning
As a result the related cartographic information of matched position point；The display module display correspondence map position information；Also include MCU and control mould
Block, RF receiving and transmission module and data processing module；
The MCU control module is connected with navigation module, RF receiving and transmission module respectively, RF receiving and transmission module and data processing
Module is connected, and data processing module is connected with navigation module；
The navigation module is additionally operable to detect the quantity of navigation message signals and be sent to MCU control module；
The MCU control module is used to judge the quantity of navigation message signals and RF receiving and transmission module is controlled；
The RF receiving and transmission module is used to gathering the data time difference that radiofrequency signal sends and receives and is sent to data
Processing module；
The data processing module is used to calculate the location point information of vehicle according to time difference data and is sent to navigation
Module.
The beneficial effects of the utility model：Make vehicle weaker or gps signal can not be received in the signal intensity of gps signal
When, it still is able to realize navigation feature.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model；
Fig. 2 is flow chart of the present utility model；
In figure：1st, MCU control module, 2, RF receiving and transmission module, 3, data processing module, 4, navigation module, 5, display mould
Block, 6, GPS module.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
On-vehicle navigation apparatus as shown in Figure 1, including GPS module 6, navigation module 4, display module 5, MCU control module
1st, RF receiving and transmission module 2 and data processing module 3；Navigation module 4 is connected with GPS module 6, display module 5 respectively；MCU is controlled
Module 1 is connected with navigation module 4, RF receiving and transmission module 2 respectively, and RF receiving and transmission module 2 is connected with data processing module 3, data
Processing module 3 is connected with navigation module 4.Wherein：The GPS module 6 is used to position vehicle.The navigation module 4 is used
Detected in the quantity to navigation message signals and be sent to MCU control module 1.The MCU control module 1 is led for judgement
The quantity of boat telegraph signal is simultaneously controlled to RF receiving and transmission module 2.The RF receiving and transmission module 2 is used to gather radiofrequency signal hair
The data time for sending and receiving is poor and is sent to data processing module 3.The data processing module 3 is used for according to time difference
According to the location point information for calculating vehicle and it is sent to navigation module 4.The navigation module 4 is according to positioning result matched position point
Related cartographic information.The display of the display module 5 correspondence map position information.
As shown in Fig. 2 workflow of the present utility model is：
1st, the quantity to navigation message signals judges：
The quantity of navigation message signals is detected by navigation module 4, and feeds back to MCU control module 1, works as navigation
The quantity of telegraph signal reaches more than 4, then illustrates that now aerial signal is strong, directly carried out using the positioning result of GPS module 6
Navigation and display, otherwise send commands to RF receiving and transmission module 2 by MCU control module 1, and RF receiving and transmission module 2 starts to send
With reception data.
2nd, the collection that RF receiving and transmission module 2 carries out signal is started：
RF receiving and transmission module 2 transmits signals to four base stations in the process of moving, and the signal of feedback is transferred into data
Processing module 3.
3rd, the signal collected is handled, calculates the corresponding position coordinates of current vehicle：
The time difference data of collection is entered data processing module 3 by RF receiving and transmission module 2, and data processing module 3 is according to receipts
To signal with sending the time difference of signal calculate relative position with four base stations, counteracting the time by software algorithm misses
Difference, calculates the position coordinates of Current vehicle, and inputs to navigation module 4.
4th, positioned and shown according to current position coordinates：
Navigation module 4 receives the position coordinates, and matches location point information, and display is on a display screen.
Software and each modular circuit involved by the utility model are prior art.
Claims (1)
1. a kind of on-vehicle navigation apparatus, including GPS module（6）, navigation module（4）And display module（5）, navigation module（4）Point
Not and GPS module（6）, display module（5）Connection；The GPS module（6）For being positioned to vehicle；The navigation module
（4）According to the related cartographic information of positioning result matched position point；The display module（5）Display correspondence map position information；
It is characterized in that：Also include MCU control module（1）, RF receiving and transmission module（2）And data processing module（3）；
The MCU control module（1）Respectively with navigation module（4）, RF receiving and transmission module（2）Connection, RF receiving and transmission module（2）With
Data processing module（3）Connection, data processing module（3）With navigation module（4）Connection；
The navigation module（4）It is additionally operable to detect the quantity of navigation message signals and be sent to MCU control module（1）；
The MCU control module（1）For judging the quantity of navigation message signals and to RF receiving and transmission module（2）It is controlled；
The RF receiving and transmission module（2）For gathering data time difference that radiofrequency signal sends and receives and being sent at data
Manage module（3）；
The data processing module（3）For calculating the location point information of vehicle according to time difference data and being sent to navigation mould
Block（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123656.1U CN206440833U (en) | 2017-02-10 | 2017-02-10 | On-vehicle navigation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123656.1U CN206440833U (en) | 2017-02-10 | 2017-02-10 | On-vehicle navigation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206440833U true CN206440833U (en) | 2017-08-25 |
Family
ID=59633851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720123656.1U Active CN206440833U (en) | 2017-02-10 | 2017-02-10 | On-vehicle navigation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206440833U (en) |
-
2017
- 2017-02-10 CN CN201720123656.1U patent/CN206440833U/en active Active
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