CN203104521U - SD combined device-based data transmission system in vehicle network - Google Patents
SD combined device-based data transmission system in vehicle network Download PDFInfo
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- CN203104521U CN203104521U CN 201320041540 CN201320041540U CN203104521U CN 203104521 U CN203104521 U CN 203104521U CN 201320041540 CN201320041540 CN 201320041540 CN 201320041540 U CN201320041540 U CN 201320041540U CN 203104521 U CN203104521 U CN 203104521U
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Abstract
The utility model discloses an SD combined device-based data transmission system in a vehicle network. The SD combined device-based data transmission system in a vehicle network comprises a vehicle-mounted navigation device, an SD combined device, a peripheral small-sized terminal, a Bluetooth module-equipped mobile phone, and a service platform, wherein the vehicle-mounted navigation device is connected with the SD combined device through an SDIO interface, the SD combined device is connected with the peripheral small-sized terminal through a 2.4G network, the peripheral small-sized terminal is connected with the Bluetooth module-equipped mobile phone through a Bluetooth network, and the Bluetooth module-equipped mobile phone is connected with the service platform through a GSM network. The SD combined device-based data transmission system in a vehicle network is characterized in that information which needs to be transmitted can be modulated into a DTMF code which can be put onto a sound channel, the DTMF code can be transmitted between mobile phone devices through the GSM, and data interaction between a back stage and the vehicle-mounted navigation device can be realized.
Description
Technical field
The utility model relates to vehicle electric field, in the networking of in particular a kind of car based on the data transmission system of dual-tone multifrequency SD equipment complex.
Background technology
In traditional car networking.Information communication between backstage and the vehicle mounted guidance (car machine) is based on the GPRS passage and the short message channel of cell phone network.This dual mode has two drawbacks, and the one, the necessary built-in GSM/GPRS module of vehicle mounted guidance, and, increase hardware cost so on the one hand with joining a SIM cards of mobile phones, 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.
Therefore, prior art has yet to be improved and developed.
The utility model content
The purpose of this utility model is to provide in a kind of car networking based on the data transmission system of SD equipment complex, is intended to solve the problem of cost height between traditional backstage and the vehicle mounted guidance, management trouble.
The technical solution of the utility model is as follows:
In the networking of a kind of car based on the data transmission system of SD equipment complex, wherein, comprise in-vehicle navigation apparatus, SD equipment complex, peripheral hardware Miniature Terminal, the mobile phone that bluetooth module is arranged and information desk, described in-vehicle navigation apparatus connects the SD equipment complex by the SDIO interface, be connected by the 2.4G network between described SD equipment complex and peripheral hardware Miniature Terminal, described peripheral hardware Miniature Terminal is connected with the mobile phone that bluetooth module is arranged by blueteeth network, and described have the mobile phone of bluetooth module by GSM network-in-dialing information desk.
Based on the data transmission system of SD equipment complex, wherein, described in-vehicle navigation apparatus comprises navigation module, middle control module and the SD driver module that links to each other successively in the described car networking; Described SD equipment complex comprises SD protocol conversion chip, TF card and a 2.4G wireless chip, the middle control program that the ground module is arranged in the described TF card and move for control module in described, described TF card is connected by the SDIO interface with SD protocol conversion chip, and described SD protocol conversion chip is connected by the RS232 serial ports with a 2.4G wireless chip; Described peripheral hardware Miniature Terminal comprises the 2nd 2.4G wireless chip, MCU and the bluetooth module that links to each other successively, in the described ground module map software is installed, and described middle control program is WINCE.
In the networking of described car based on the data transmission system of SD equipment complex, wherein, also be provided with independently PTT service application module, the icon independent displaying of this application module in all display interfaces foremost, when the user click application module icon the time, system can judge earlier whether map software opens, if open, the software of then spreading out the map is dialed the backstage then.
In the networking of described car based on the data transmission system of SD equipment complex, wherein, with the icon independent displaying be: in WINDOWS, the form of icon with the dialog box Background is presented on the display screen in the method foremost of all display interfaces, and this dialog box is set to TOPMOST, and realizes the start self-starting by revising registration table.
Based on the data transmission system of SD equipment complex, wherein, described SD equipment complex is packaged into the contour structures of common SD in the described car networking.
In the networking of described car based on the data transmission method of SD equipment complex, wherein, the concrete grammar that described ground module is finished the self-navigation function according to the data message of information desk is: encapsulate the dynamic link library that one group of standard common interface function provides dynamic load, by boot is set, when system is spread out the map dynamic link library is loaded in the in-vehicle navigation apparatus, concrete grammar is: earlier the EXENAME of the map software of former car is replaced to the another one name, make into the execute file name of boot consistent then with the filename of former map software executable, click the navigation button of UI program as the client, car machine UI program will be opened boot earlier, the boot executable file of software of spreading out the map then, and load the dynamic link library of in-vehicle navigation apparatus correspondence.
The beneficial effects of the utility model: the utility model transmits between cell phone apparatus by GSM by being put into sound channel and getting on needing information transmitted to be modulated into dtmf code, realizes easy data interaction between backstage and the vehicle mounted guidance.
Description of drawings
Fig. 1 is the system block diagram 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, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.
Referring to Fig. 1, the system that the utility model provides comprises in-vehicle navigation apparatus, SD equipment complex, peripheral hardware Miniature Terminal, the mobile phone that bluetooth module is arranged and information desk, described in-vehicle navigation apparatus connects the SD equipment complex by the SDIO interface, be connected by the 2.4G network between described SD equipment complex and peripheral hardware Miniature Terminal, described peripheral hardware Miniature Terminal is connected with the mobile phone that bluetooth module is arranged by blueteeth network, and described have the mobile phone of bluetooth module by GSM network-in-dialing information desk.
Described in-vehicle navigation apparatus comprises navigation module, middle control module and the SD driver module that links to each other successively; Described SD equipment complex comprises SD protocol conversion chip, TF card and a 2.4G wireless chip, the middle control program that the ground module is arranged in the described TF card and move for control module in described, described TF card is connected by the SDIO interface with SD protocol conversion chip, and described SD protocol conversion chip is connected by the RS232 serial ports with a 2.4G wireless chip; Described peripheral hardware Miniature Terminal comprises the 2nd 2.4G wireless chip, MCU and the bluetooth module that links to each other successively.
Described SD equipment complex is packaged into the contour structures of common SD, can directly insert the SD interface of in-vehicle navigation apparatus.
Be connected by the RS232 serial ports between described the 2nd 2.4G wireless chip and MCU, be connected by voice-grade channel between MCU and bluetooth module.Described Miniature Terminal can be set directly in the in-vehicle navigation apparatus.The control program is WINCE in described, but and in being limited to the wince system, so long as the operating system that band SD card drives can be used (as windows, linux, unix, android).In the described ground module map software is installed.
The operating process that a 2.4G wireless chip in the SD equipment complex and middle control program wince pass data mutually is as follows: the first step is: the 2.4G wireless chip transfers data to middle control program wince, this 2.4G wireless chip was passed to SD protocol conversion chip by serial ports with data before this, SD protocol conversion this moment chip can oneself state be set to state data memory after accepting data and finishing; Second step was: middle control program wince reads the state of SD protocol conversion chip in a time period, central control program wince grabs when in the SD protocol conversion chip storing data state being arranged, and then enters to read these data;
In like manner, the step when central control program wince gives 2.4G wireless chip transmission data is: at first, middle control program wince can pass to data SD protocol conversion chip, SD protocol conversion chip can give one state data memory; The data that control program wince gave during then, 2.4G wireless chip scanning SD protocol conversion chip obtained.Thereby control program wince gives the purpose of 2.4G wireless chip transmission data in realizing.
The utility model also is provided with an independently PTT service application module on the basis of said system, this application module rests in a suitable position on the car machine screen with the form of an icon.In the time of user's clickable icon, system can judge at first whether the map software in the ground module opens, if do not open, the software of then spreading out the map is dialed the backstage then.Be in the top layer of screen after the start of this icon, the user can click this icon at any time always, and the software that need not to spread out the map just can be dialed the PTT backstage and navigate, and realizes that really PTT navigates.And this icon has suspension characteristic and mobility, and is also smaller.So the practicality on the car machine is also than higher.
Described icon be one with common bitmap, the form with the dialog box Background in WINDOWS is presented on the car machine display screen.Only need this dialog box to be set to TOPMOST among the WINDOWS 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, may further comprise the steps by the flow process of information desk toward in-vehicle navigation apparatus transmission data:
Step S1: information desk is put into sound channel and gets on needing information transmitted to be modulated into dtmf code, sends to mobile phone by the GSM network;
Step S2: mobile phone sends to dtmf code the peripheral hardware Miniature Terminal with bluetooth module by bluetooth;
Step S3: obtain the data message that information desk transmits after the peripheral hardware Miniature Terminal makes an explanation to dtmf code, and send to the SD equipment complex;
Step S4: 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 S5: the ground module is finished the self-navigation function according to the data message of information desk.
Information desk is put into sound channel and gets on needing information transmitted to be modulated into dtmf code, transmits between cell phone apparatus by GSM.This mobile phone is the client's mobile phone of usefulness or mobile phone of using zero time at ordinary times, only need have phone functions and BT function.In the process that client's mobile phone is being made a phone call, just can send data to from the bluetooth of user mobile phone the bluetooth equipment of a pairing like this.After this bluetooth equipment parses audio frequency, output to the MCU of a band AD interface from a voice-grade channel.MCU obtains the data message that information desk transmits after the dtmf code of sound the inside is explained.MCU obtains sending the 2nd 2.4G wireless chip to by RS232 behind the data message.The 2nd 2.4G wireless chip transmits a 2.4G wireless chip of SD equipment complex again by the 2.4G network.The one 2.4G wireless chip sends information to a SD protocol conversion chip again.This SD protocol conversion chip can receive the data from common IO equipment, through protocol conversion.Middle control program in the middle control module operation TF card above the 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 be finished the such thing of similar automatic path planning according to these information.So just reach the purpose that information desk sends information to navigation software.
This flow process just can give the information anti-pass above the car machine information desk to reach two-way communication conversely.In addition, the ground module is arranged in the TF card, because SD protocol conversion chip has been arranged, described ground module can be followed the shared SDIO interface of common IO equipment.Can reach the purpose that to visit map and IO equipment by a SDIO interface simultaneously like this.
The described purpose that can visit map and IO equipment simultaneously by a SDIO interface is to finish the function of SD compound chip with SD specification 2.0 agreements of standard.The SD compound chip comprises storage card and basic IO equipment, for example the equipment of IO interfaces such as RS232, SPI, IIC, USB and ether net all can because described SD protocol conversion chip is the chip with IO interfaces such as RS232, SPI, IIC, USB or ether net.
This agreement only need utilize USB storage general on existing PC or the WINCE equipment or SD card to drive, and just can visit the TF card of standard and the IO equipment of a standard by the SD interface simultaneously.Thereby the design and use of SD equipment complex have been simplified greatly.The functional specification of SD equipment complex is: adopt standard SD specification 2.0 agreements; Its TF card is 4G to 32G; Read or write speed satisfies CLASS 6, and reading speed can reach 10M BYTE/second; IO equipment can be realized RS232, wherein one or several of SPI, IIC, USB or ether net etc.
SD protocol conversion chip realizes that the method for conversion is: SD protocol conversion chip need be done protocol conversion to the read-write of specific two sectors.A sector is a data sector.Data to this data sector read-write all are transformed on the corresponding IO equipment.Another sector is the control sector.Can control the sector by this and dispose IO equipment, such as the baud rate of equipment, data format.
This protocol conversion has been arranged, on operating system, only needed application layer to initiate just can have access to corresponding peripheral hardware the direct visit of these two sectors.Because respective drive has mutual exclusion function, does not influence file system and visits external memory device simultaneously, so just can reach the arbitrary purpose of using IO equipment and memory device simultaneously.
The use of described SD protocol conversion chip is just as card reader.Common in the past SD card can only be inserted into computer when a memory device usefulness.But can work as a memory device usefulness after the SD equipment complex that SD protocol conversion chip is set inserts, can work as a serial equipment again and use.This SD protocol conversion chip is to give IO equipment usefulness preceding a certain size the addressing space of TF card internal memory, and the addressing space of back continues to use to storage card.Be equivalent to sacrifice a little memory headroom.
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 dynamic load DLL is provided the method for (Dynamic-link libraries, dynamic link library).Its principle: in this DLL storehouse, encapsulated the needed DLL of different automatic navigator platforms, as the bridge of communication between map software and the automatic navigator, to realize the communication between different map software and the different automatic navigators.
The standard common interface function of described encapsulation is the inside that is put into the ground graph card, does a boot, when spreading out the map DLL is loaded in the system.Its specific practice is: at first, the EXENAME of original map software is replaced, the executable file of map software is made into the another one name; Then, boot is made into the map software original filename of part of can composing a piece of writing with holding.When car machine UI program start, will open boot earlier.It is exactly the executable file of software of spreading out the map that boot is finished 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 among the DLL, realizes the function of different automatic navigators.In the time of need using vocal function such as map software, 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, and after map software was received message, the control AM/BAM switched.Require map software to realize being provided with the navigation volume such as automatic navigator, 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 the map software and the navigation panel problem of automatic navigator.The user arbitrarily buys any one tame map software and any one tame automatic navigator, can solve compatibility issue by loading DLL.Universal like this DLL can solve compatibling problem between different automatic navigators and the map software, can guarantee Navigator normally operation on automatic navigator.
The utility model transmits between cell phone apparatus by GSM by being put into sound channel and getting on needing information transmitted to be modulated into dtmf code, realizes easy data interaction between backstage and the vehicle mounted guidance.
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 improvement and conversion all should belong to the protection range of the utility model claims.
Claims (6)
- In the car networking based on the data transmission system of SD equipment complex, it is characterized in that, comprise in-vehicle navigation apparatus, SD equipment complex, peripheral hardware Miniature Terminal, the mobile phone that bluetooth module is arranged and information desk, described in-vehicle navigation apparatus connects the SD equipment complex by the SDIO interface, be connected by the 2.4G network between described SD equipment complex and peripheral hardware Miniature Terminal, described peripheral hardware Miniature Terminal is connected with the mobile phone that bluetooth module is arranged by blueteeth network, and described have the mobile phone of bluetooth module by GSM network-in-dialing information desk.
- 2. based on the data transmission system of SD equipment complex, it is characterized in that described in-vehicle navigation apparatus comprises navigation module, middle control module and the SD driver module that links to each other successively in the car networking according to claim 1; Described SD equipment complex comprises SD protocol conversion chip, TF card and a 2.4G wireless chip, the ground module is arranged in the described TF card, described TF card is connected by the SDIO interface with SD protocol conversion chip, and described SD protocol conversion chip is connected by the RS232 serial ports with a 2.4G wireless chip; Described peripheral hardware Miniature Terminal comprises the 2nd 2.4G wireless chip, MCU and the bluetooth module that links to each other successively.
- 3. based on the data transmission system of SD equipment complex, it is characterized in that also be provided with independently PTT service application module, the icon independent displaying of this application module in all display interfaces foremost in the car networking according to claim 2.
- 4. based on the data transmission system of SD equipment complex, it is characterized in that described SD protocol conversion chip is the chip with RS232, SPI, IIC, USB or ether net interface in the car networking according to claim 3.
- 5. based on the data transmission system of SD equipment complex, it is characterized in that described SD equipment complex is packaged into the contour structures of common SD in the car networking according to claim 2.
- 6. based on the data transmission system of SD equipment complex, it is characterized in that a SD protocol conversion chip and a 2.4G wireless chip integrate in the car networking according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041540 CN203104521U (en) | 2013-01-25 | 2013-01-25 | SD combined device-based data transmission system in vehicle network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041540 CN203104521U (en) | 2013-01-25 | 2013-01-25 | SD combined device-based data transmission system in vehicle network |
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| Publication Number | Publication Date |
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| CN203104521U true CN203104521U (en) | 2013-07-31 |
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| CN 201320041540 Expired - Lifetime CN203104521U (en) | 2013-01-25 | 2013-01-25 | SD combined device-based data transmission system in vehicle network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108038A (en) * | 2013-01-25 | 2013-05-15 | 广东翼卡车联网服务有限公司 | Data transmission method and system based on secure digital (SD) compound device in car networking |
-
2013
- 2013-01-25 CN CN 201320041540 patent/CN203104521U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108038A (en) * | 2013-01-25 | 2013-05-15 | 广东翼卡车联网服务有限公司 | Data transmission method and system based on secure digital (SD) compound device in car networking |
| CN103108038B (en) * | 2013-01-25 | 2015-10-28 | 广东翼卡车联网服务有限公司 | Based on the data transmission method of SD equipment complex and system in car networking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 528133, No. 2, inner ring road, 1 North East Sea Road, Sanshui East Road, Sanshui District, Guangdong, Shenzhen 303, 204 Patentee after: GUANGDONG ECAR TELEMATICS SERVICE Co.,Ltd. Address before: 528133 C zone, southwest industry zone, Sanshui District, Guangdong, Shenzhen Patentee before: Guangdong Ecar Telematics Service Co.,Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 528133, No. 2, inner ring road, 1 North East Sea Road, Sanshui East Road, Sanshui District, Guangdong, Foshan 303, 204 Patentee after: GUANGDONG ECAR TELEMATICS SERVICE Co.,Ltd. Address before: 528133, No. 2, inner ring road, 1 North East Sea Road, Sanshui East Road, Sanshui District, Guangdong, Shenzhen 303, 204 Patentee before: Guangdong Ecar Telematics Service Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |
Address after: 528133 F3 (F3), C District, southwest garden of Sanshui center science and Technology Industrial Park, Foshan, Guangdong Patentee after: GUANGDONG ECAR TELEMATICS SERVICE Co.,Ltd. Address before: 528133, No. 2, inner ring road, 1 North East Sea Road, Sanshui East Road, Sanshui District, Guangdong, Foshan 303, 204 Patentee before: Guangdong Ecar Telematics Service Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
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| CX01 | Expiry of patent term |