CN203298780U - Navigation system based on Wifi (Wireless Fidelity) communication of SD (Secure Digital) compound device - Google Patents
Navigation system based on Wifi (Wireless Fidelity) communication of SD (Secure Digital) compound device Download PDFInfo
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- CN203298780U CN203298780U CN2013202345835U CN201320234583U CN203298780U CN 203298780 U CN203298780 U CN 203298780U CN 2013202345835 U CN2013202345835 U CN 2013202345835U CN 201320234583 U CN201320234583 U CN 201320234583U CN 203298780 U CN203298780 U CN 203298780U
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Abstract
The utility model discloses a navigation system based on Wifi (Wireless Fidelity) communication of an SD (Secure Digital) compound device. The navigation system comprises a vehicle-mounted navigation device, the SD compound device, a mobile phone with a Wifi module and a service station, wherein the vehicle-mounted navigation device is connected with the SD compound device through an SDIO (Secure Digital Input Output) interface, the SD compound device is connected with the mobile phone with the Wifi module through a Wifi network, the mobile phone with the Wifi module is communicated with an internet through a mobile phone network, and the service station is in communication connection with the internet; the SD compound device comprises an SD card, an SD protocol conversion chip and a Wifi module, wherein the SD card and the SD protocol conversion chip are connected through the SDIO interface, and the SD protocol conversion chip and the Wifi module are connected through an SPI (Serial Peripheral Interface) serial port. By utilizing the navigation system based on the Wifi communication of the SD compound device, the problems that the vehicle-mounted navigation device is high in cost and poor in stability when a 2.4G wireless chip is used for transmitting the information are solved.
Description
Technical field
The utility model relates to vehicle electric field, in particular a kind of navigational system based on SD equipment complex Wifi communication.
Background technology
In traditional car networking.Information communication between backstage and vehicle mounted guidance (car machine) is based on GPRS passage and the short message channel of cell phone network.These two kinds of modes have two drawbacks, and the one, the necessary built-in GSM/GPRS module of vehicle mounted guidance, and, with joining a SIM cards of mobile phones, increase hardware cost so on the one hand, also there is very burden in the management of SIM cards of mobile phones on the other hand.Another drawback is, no matter is by GPRS or by short message channel, all can produce extra-pay.
In prior art, also exist a kind of 2.4G of utilization wireless chip to carry out the onboard navigation system of transmission of information, this navigational system cost is high, and because 2.4G wireless chip technology is not overripened, when onboard navigation system and mobile phone backstage transmission of information, poor stability.
Therefore, prior art has yet to be improved and developed.
The utility model content
The purpose of this utility model is to provide a kind of navigational system based on SD equipment complex Wifi communication, is intended to solve the problem that between traditional backstage and vehicle mounted guidance, cost is high, management bothers.
The technical solution of the utility model is as follows: a kind of navigational system based on SD equipment complex Wifi communication, wherein, comprise in-vehicle navigation apparatus, SD equipment complex, the mobile phone that the Wifi module is arranged and information desk, described in-vehicle navigation apparatus connects the SD equipment complex by the SDIO interface, described SD equipment complex is connected with the mobile phone that the Wifi module is arranged by the Wifi network, the mobile phone of the described Wifi of having module is communicated with internet by cell phone network, information desk and internet communication connection; Described SD equipment complex comprises SD card, SD protocol conversion chip and Wifi module; Described SD card is connected by the SDIO interface with SD protocol conversion chip; Described SD protocol conversion chip is connected by the SPI serial ports with the Wifi module.
Described navigational system based on SD equipment complex Wifi communication, wherein, described SD card storing map module and middle control program.
Described navigational system based on SD equipment complex Wifi communication, wherein, described in-vehicle navigation apparatus comprises navigation module, middle control module and the SD driver module that is connected successively; Described SD driver module is connected by the SDIO interface with SD protocol conversion chip.
Described navigational system based on SD equipment complex Wifi communication, wherein, described SD protocol conversion chip is the chip with RS232, SPI, IIC, USB or ether net interface.
Described navigational system based on SD equipment complex Wifi communication, wherein, described cell phone network comprises GSM network, GPRS network and 3G network.
Described navigational system based on SD equipment complex Wifi communication wherein, is characterized in that described SD equipment complex is packaged into the contour structures of common SD.
The utility model is put into internet by the information the needs transmission and gets on, and by internet, between the equipment that can connect internet, transmits, and realizes easy data interaction between backstage and vehicle mounted guidance; The utility model is by arranging the Wifi module on the SD equipment complex, the SD equipment complex is connected with the mobile phone that the Wifi module is arranged by the Wifi network, by mobile phone GPRS network or 3G network access internet, information transfer efficiency is high, good stability, solved conventional art and utilized 2.4G wireless chip transmission of information expensive, the problems such as poor stability.
The accompanying drawing explanation
Fig. 1 is the system chart that the utility model provides.
Fig. 2 is the method flow diagram that the utility model provides.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Referring to Fig. 1, the system that the utility model provides comprises in-vehicle navigation apparatus, SD equipment complex, the mobile phone that the Wifi module is arranged and information desk, described in-vehicle navigation apparatus connects the SD equipment complex by the SDIO interface, described SD equipment complex is connected with the mobile phone that the Wifi module is arranged by the Wifi network, the mobile phone of the described Wifi of having module is communicated with internet by cell phone network, information desk and internet communication connection.Described cell phone network comprises GSM network, GPRS network and 3G network.
Described in-vehicle navigation apparatus comprises navigation module, middle control module and the SD driver module that is connected successively; Described SD equipment complex comprises SD protocol conversion chip, SD card and Wifi module, the middle control program that the ground module is arranged in described SD card and move for described middle control module, described SD card is connected by the SDIO interface with SD protocol conversion chip, and described SD protocol conversion chip is connected by the SPI serial ports with the Wifi module.
Described in-vehicle navigation apparatus is provided with the SD interface; Described SD equipment complex is packaged into the contour structures of common SD, can directly insert the SD interface of in-vehicle navigation apparatus.
Described middle control program is WINCE, but and in being limited to the wince system, so long as can use (as windows, linux, unix, android) with the operating system of SD card driving.In described ground module, map software is installed.
The operating process that Wifi module in the SD equipment complex and middle control program wince pass data mutually is as follows: the first step is: the Wifi module transfers data to middle control program wince, this Wifi module was passed to SD protocol conversion chip by serial ports by data before this, SD protocol conversion this moment chip, after accepting data and completing, can oneself state be set to state data memory; Second step is: middle control program wince reads the state of SD protocol conversion chip within a time period, and central control program wince grabs in SD protocol conversion chip when storing data state is arranged, and enters to read these data;
At first, middle control program wince can pass to data SD protocol conversion chip in like manner, the step of central control program wince during to Wifi module transmission data is:, SD protocol conversion chip can give one state data memory; Then, Wifi module scanning SD protocol conversion chip obtains the data that middle control program wince gives.Thereby in realizing, control program wince is to the purpose of Wifi module transmission data.Described SD protocol conversion chip is the chip with RS232, SPI, IIC, USB or ether net interface.
In practical application, the utility model also is provided with an independently PTT service application module on the basis of said system, and this application module rests in a suitable position on car machine screen with the form of an icon.In the time of user's clickable icon, at first system can judge whether the map software in the ground module opens, if do not open, the software of spreading out the map, then dial backstage.After the start of this icon, be in the top layer of screen, the user can click this icon at any time, without the software of spreading out the map, just can dial the PTT backstage to navigate always, realizes that really PTT navigates.And this icon has suspension characteristic and movability, and is also smaller.So the practicality on the car machine is also higher.
Described icon is a common bitmap, and the form with the dialog box Background in WINDOWS is presented on car machine display screen.In WINDOWS, only need this dialog box to be set to TOPMOST and just can realize remaining on screen purpose foremost.And by writing registration table can realize the starting shooting function of self-starting.
Referring to Fig. 2, in the means of communication that the utility model provides, by the flow process of information desk toward in-vehicle navigation apparatus transmission data, comprised the following steps:
Step S1: mobile phone is connected with internet by GPRS network or 3G network, from internet, uploads delivery data, and mobile phone, as a Wifi focus, is connected with the Wifi module communication in the SD equipment complex;
Step S2:SD equipment complex is by mobile phone access internet: it is upper that information desk sends to internet to data, by internet, passes to the SD equipment complex;
Step S3: in-vehicle navigation apparatus reads the data message that the SD equipment complex obtains, and control program in service loads data message to the ground module;
Step S4: the ground module completes the self-navigation function according to the data message of information desk.
Information desk is put into internet to the information of needs transmission and gets on, and by internet, between the equipment that can connect internet, transmits.This equipment is the client's mobile phone of use or mobile phone of temporarily using at ordinary times, only need to have GPRS or 3G function and Wifi function; This equipment can be also the equipment such as panel computer with wireless networking capabilities and Wifi function.Just at client's mobile phone, by GPRS or 3G, connect like this in the process of internet and can send the Wifi that data are passed through user mobile phone from internet to the Wifi equipment (SD equipment complex) of a pairing.The SD equipment complex stores data through protocol conversion.Middle control program in middle control module operation SD card above vehicle mounted guidance just can read the data message that this SD protocol conversion chip obtains by the SDIO interface.Middle control program just can send the ground module to after reading information, and the ground module just can complete the such thing of similar automatic path planning according to these information.So just reach information desk and information is sent to the purpose of navigation software.
This flow process conversely just can be the information anti-pass above the car machine to information desk to reach two-way communication.In addition, the ground module is arranged in the SD card, and due to SD protocol conversion chip having been arranged, described ground module can share the SDIO interface with common IO equipment.Can reach like this purpose that can access simultaneously map and IO equipment by a SDIO interface.
For the navigation panel that realizes automatic navigator and the problem of the compatible property of map software, the utility model proposes: adopt one group of standard common interface function of encapsulation that the dynamic load DLL method of (Dynamic-link libraries, dynamic link library) is provided.Its principle: encapsulated the needed DLL of different automatic navigator platforms in this DLL storehouse, as the bridge of communication between map software and automatic navigator, to realize the communication between different map software and different automatic navigators.
The standard common interface function of described encapsulation is to be put into graph card the inside, ground, does a boot, when spreading out the map, DLL is loaded in system.Its specific practice is: at first, the EXENAME of original map software is replaced, the executable file of map software is made into to the another one name; Then, boot is made into to the map software original filename of part of can composing a piece of writing with holding.When starting, car machine UI program will first open boot.It is exactly the executable file of software of spreading out the map that boot completes two one of actions, and another one is exactly to load corresponding DLL.
Map software adopts the mode of inquiry to detect the DLL storehouse DLL corresponding with automatic navigator, and the DLL that dynamic load should correspondence on map software, and then calls the standard common interface function in DLL, realizes the function of different automatic navigators.In the time of such as map software, need to using vocal function, can call corresponding interface function request automatic navigator and close DVD, MP3 etc. and stop sounding.
Automatic navigator transmits windows messaging by DLL to map software, after map software is received message, controls the AM/BAM switching.Such as automatic navigator requires map software, realize arranging the navigation volume, the functions such as navigation are closed in request.
Because versatility DLL adopts standard common interface function, and any automatic navigator company and map software company also can adopt the disclosure standard common interface function.So as long as automatic navigator company and navigation software have adopted this standard interface function to realize DLL.The user does not need to consider that automatic navigator uses which map software and the navigation panel problem of automatic navigator.The user arbitrarily buys any map software and any automatic navigator, can solve compatibility issue by loading DLL.Universal like this DLL can solve compatibling problem between different automatic navigators and map software, can guarantee Navigator normally operation on automatic navigator.
The utility model is put into internet by the information the needs transmission and gets on, and by internet, between the equipment that can connect internet, transmits, and realizes easy data interaction between backstage and vehicle mounted guidance; The utility model is by arranging the Wifi module on the SD equipment complex, the SD equipment complex is connected with the mobile phone that the Wifi module is arranged by the Wifi network, by mobile phone GPRS network or 3G network access internet, information transfer efficiency is high, good stability, solved and traditional utilized the wireless chip transmission of information expensive, the problems such as poor stability.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improve and conversion all should belong to the protection domain of the utility model claims.
Claims (6)
1. navigational system based on SD equipment complex Wifi communication, it is characterized in that, comprise in-vehicle navigation apparatus, SD equipment complex, the mobile phone that the Wifi module is arranged and information desk, described in-vehicle navigation apparatus connects the SD equipment complex by the SDIO interface, described SD equipment complex is connected with the mobile phone that the Wifi module is arranged by the Wifi network, the mobile phone of the described Wifi of having module is communicated with internet by cell phone network, information desk and internet communication connection;
Described SD equipment complex comprises SD card, SD protocol conversion chip and Wifi module; Described SD card is connected by the SDIO interface with SD protocol conversion chip; Described SD protocol conversion chip is connected by the SPI serial ports with the Wifi module.
2. the navigational system based on SD equipment complex Wifi communication according to claim 1, is characterized in that described SD card storing map module and middle control program.
3. the navigational system based on SD equipment complex Wifi communication according to claim 2, is characterized in that, described in-vehicle navigation apparatus comprises navigation module, middle control module and the SD driver module that is connected successively; Described SD driver module is connected by the SDIO interface with SD protocol conversion chip.
4. the navigational system based on SD equipment complex Wifi communication according to claim 3, is characterized in that, described SD protocol conversion chip is the chip with RS232, SPI, IIC, USB or ether net interface.
5. the navigational system based on SD equipment complex Wifi communication according to claim 4, is characterized in that, described cell phone network comprises GSM network, GPRS network and 3G network.
6. the navigational system based on SD equipment complex Wifi communication according to claim 4, is characterized in that, it is characterized in that, described SD equipment complex is packaged into the contour structures of common SD.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202345835U CN203298780U (en) | 2013-05-03 | 2013-05-03 | Navigation system based on Wifi (Wireless Fidelity) communication of SD (Secure Digital) compound device |
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| CN2013202345835U CN203298780U (en) | 2013-05-03 | 2013-05-03 | Navigation system based on Wifi (Wireless Fidelity) communication of SD (Secure Digital) compound device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729512A (en) * | 2015-03-05 | 2015-06-24 | 广东翼卡车联网服务有限公司 | Method and system for accessing wireless network into vehicle-mounted navigator |
| CN104796864A (en) * | 2015-03-23 | 2015-07-22 | 广东翼卡车联网服务有限公司 | Method for enabling vehicle-mounted navigator to access network and system thereof |
| CN104954969A (en) * | 2014-08-18 | 2015-09-30 | 深圳弘范网络科技有限公司 | Communication system of vehicle-mounted electronic equipment and communication method thereof |
| CN105357772A (en) * | 2015-11-12 | 2016-02-24 | 广东翼卡车联网服务有限公司 | Method and system for interconnecting vehicle navigation system and mobile phone |
| CN105491528A (en) * | 2016-01-04 | 2016-04-13 | 深圳市凯逸达科技有限公司 | Method for directly transmitting mobile phone map location information to vehicle-mounted navigation system |
| CN105760107A (en) * | 2014-12-15 | 2016-07-13 | 联想(北京)有限公司 | Storage device, electronic device and information processing method |
-
2013
- 2013-05-03 CN CN2013202345835U patent/CN203298780U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954969A (en) * | 2014-08-18 | 2015-09-30 | 深圳弘范网络科技有限公司 | Communication system of vehicle-mounted electronic equipment and communication method thereof |
| CN104954969B (en) * | 2014-08-18 | 2019-02-01 | 深圳弘范网络科技有限公司 | A kind of communication system and its communication means of vehicle electronic device |
| CN105760107A (en) * | 2014-12-15 | 2016-07-13 | 联想(北京)有限公司 | Storage device, electronic device and information processing method |
| CN105760107B (en) * | 2014-12-15 | 2019-02-05 | 联想(北京)有限公司 | A kind of storage equipment, electronic equipment and information processing method |
| CN104729512A (en) * | 2015-03-05 | 2015-06-24 | 广东翼卡车联网服务有限公司 | Method and system for accessing wireless network into vehicle-mounted navigator |
| CN104796864A (en) * | 2015-03-23 | 2015-07-22 | 广东翼卡车联网服务有限公司 | Method for enabling vehicle-mounted navigator to access network and system thereof |
| CN105357772A (en) * | 2015-11-12 | 2016-02-24 | 广东翼卡车联网服务有限公司 | Method and system for interconnecting vehicle navigation system and mobile phone |
| CN105491528A (en) * | 2016-01-04 | 2016-04-13 | 深圳市凯逸达科技有限公司 | Method for directly transmitting mobile phone map location information to vehicle-mounted navigation system |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20190503 |