CN102620744A - Application of audio transmission data to navigation system - Google Patents
Application of audio transmission data to navigation system Download PDFInfo
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- CN102620744A CN102620744A CN2012100894541A CN201210089454A CN102620744A CN 102620744 A CN102620744 A CN 102620744A CN 2012100894541 A CN2012100894541 A CN 2012100894541A CN 201210089454 A CN201210089454 A CN 201210089454A CN 102620744 A CN102620744 A CN 102620744A
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Abstract
The invention discloses a vehicle navigation method based on digital voice transmission. According to the vehicle navigation method, information transmission is conducted among a Bluetooth module, a mobile phone with a Bluetooth function and a master control unit (MCU). The vehicle navigation method is characterized in that the information transmission conducted among the Bluetooth module, the mobile phone with the Bluetooth function and the MCU is realized through transmitting data carriers through a voice channel and then modulating and demodulating the data carriers at a background. The invention additionally discloses a terminal system of the vehicle navigation method based on the digital voice transmission, and the terminal system comprises navigation equipment, the MCU, the Bluetooth module, the mobile phone with the Bluetooth function, and the processing background for being communicated and contacted with the mobile phone, wherein the MCU is bidirectionally connected with the navigation equipment through serial ports; the Bluetooth module is communicated with an audio channel of an A/D (analog to digital) converter of the MCU; and the processing background and the navigation equipment are additionally provided with audio modulation decoder. The terminal system has the advantages that original functions of the mobile phone are utilized, a communication module does not need to be added, the cost is low and the unification of standards is easy to realize.
Description
Technical field
The present invention relates to the vehicle mounted guidance technical field, more particularly relate to the application of a kind of audio transmission data in navigational system.
Background technology
Generally having the Bluetooth function data transmission in the onboard navigation system of prior art generally is to adopt data channel to carry out the transmission of relevant information; And different manufacturers all need be provided with the wireless module of oneself; Adopt like this in transmission mode; Its poor compatibility each other of the product that different manufacturer releases causes market comparatively chaotic like this, and cost is higher simultaneously.How to address this problem, realize that the unification of product standard between the different vendor becomes present pressing for.
Summary of the invention
The object of the invention is exactly a kind of low application of a kind of audio transmission data in navigational system of unification, cost that can effectively realize standard that provides for the deficiency that solves prior art.
The present invention adopts following technical solution to realize above-mentioned purpose: the application of a kind of audio transmission data in navigational system; It is to carry out information transmission between background system and the car machine; It is characterized in that; The information transmission of carrying out between said background system and the car machine is through voice channel transmission data carrier, is through the DTMF/FSK codec map latitude and longitude coordinates data to be encoded earlier, is sent to user mobile phone through cell phone network again; User mobile phone receives and is sent to the DTMF/FSK codec with the Bluetooth transmission mode after the voice signal data and decodes; Be stored in after the decoding among the car machine master controller MCU, last, extract map reference information and open navigation Service in storer by the navigational system in the car-mounted terminal.
As further specifying of such scheme; Said background system is earlier map longitude and latitude data message to be encoded through the DTMF/FSK codec; Be compiled into audio format, be sent to user mobile phone through cell phone network again, user mobile phone is sent to the car machine with bluetooth approach after receiving voice signal data; DTMF/FSK codec by the car machine is decoded, and is stored in after the decoding in the TF card of car machine master controller MCU.
After said user mobile phone receives voice signal data; Be earlier voice signal to be sent to one to have Bluetooth function and be equipped with in the bluetooth pedestal of DTMF/FSK codec, MCU and wireless transport module; After the decoding with data penetration transmission to car machine master controller MCU; At last, extract map reference information and open navigation Service in storer by the navigational system in the car-mounted terminal.
Said wireless transport module adopts the 2.4G Wireless Transmitter.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is: the present invention has adopted the audio speech passage to come transmitting data information, has utilized former client's cell-phone function, need not to increase in addition wireless module, and cost is low, more is prone to the unification of realization standard simultaneously.
Description of drawings
Fig. 1 is a square frame principle synoptic diagram of the present invention;
Fig. 2 is another embodiment of the present invention theory diagram.
Embodiment
Embodiment 1
As shown in Figure 1; The application of a kind of audio transmission data of the present invention in navigational system; It is to carry out information transmission between background system and the car machine; The information transmission of carrying out between said background system and the car machine is through voice channel transmission data carrier, is through the DTMF/FSK codec map latitude and longitude coordinates data to be encoded earlier, is sent to user mobile phone through cell phone network again; User mobile phone receives and is sent to the DTMF/FSK codec with the Bluetooth transmission mode after the voice signal data and decodes; Be stored in after the decoding among the car machine master controller MCU, last, extract map reference information and open navigation Service in storer by the navigational system in the car-mounted terminal.
Further; Background system is earlier map longitude and latitude data message to be encoded through the DTMF/FSK codec; Be compiled into audio format, be sent to user mobile phone through cell phone network again, user mobile phone is sent to the car machine with bluetooth approach after receiving voice signal data; DTMF/FSK codec by the car machine is decoded, and is stored in after the decoding in the TF card of car machine master controller MCU.
Embodiment 2
As shown in Figure 2; The difference of present embodiment and above-mentioned embodiment is; After said user mobile phone receives voice signal data, be earlier voice signal to be sent to one to have Bluetooth function and be equipped with in the bluetooth pedestal of DTMF/FSK codec, MCU and wireless transport module, after the decoding with data penetration transmission to car machine master controller MCU; At last, extract map reference information and open navigation Service in storer by the navigational system in the car-mounted terminal.Said wireless transport module adopts the 2.4G Wireless Transmitter.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (4)
1. the application of audio transmission data in navigational system; It is to carry out information transmission between background system and the car machine; It is characterized in that; The information transmission of carrying out between said background system and the car machine is through voice channel transmission data carrier, is through the DTMF/FSK codec map latitude and longitude coordinates data to be encoded earlier, is sent to user mobile phone through cell phone network again; User mobile phone receives and is sent to the DTMF/FSK codec with the Bluetooth transmission mode after the voice signal data and decodes; Be stored in after the decoding among the car machine master controller MCU, last, extract map reference information and open navigation Service in storer by the navigational system in the car-mounted terminal.
2. the application of a kind of audio transmission data according to claim 1 in navigational system; It is characterized in that said background system is earlier map longitude and latitude data message to be encoded through the DTMF/FSK codec, is compiled into audio format; Be sent to user mobile phone through cell phone network again; User mobile phone is sent to the car machine with bluetooth approach after receiving voice signal data, is decoded by the DTMF/FSK codec of car machine, is stored in after the decoding in the TF card of car machine master controller MCU.
3. the application of a kind of audio transmission data according to claim 1 in navigational system; It is characterized in that; After said user mobile phone receives voice signal data, be earlier voice signal to be sent to one to have Bluetooth function and be equipped with in the bluetooth pedestal of DTMF/FSK codec, MCU and wireless transport module, after the decoding with data penetration transmission to car machine master controller MCU; At last, extract map reference information and open navigation Service in storer by the navigational system in the car-mounted terminal.
4. the application of a kind of audio transmission data according to claim 3 in navigational system is characterized in that, said wireless transport module adopts the 2.4G Wireless Transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100894541A CN102620744A (en) | 2012-03-30 | 2012-03-30 | Application of audio transmission data to navigation system |
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| CN2012100894541A CN102620744A (en) | 2012-03-30 | 2012-03-30 | Application of audio transmission data to navigation system |
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Cited By (9)
| 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 |
| CN103475701A (en) * | 2013-08-30 | 2013-12-25 | 北京远特科技有限公司 | Data transmission method of vehicle-mounted terminal and background system, as well as system and vehicle-mounted terminal |
| CN103716473A (en) * | 2012-09-29 | 2014-04-09 | 深圳市众鸿科技股份有限公司 | Vehicle-mounted navigation communication system and method |
| CN104320445A (en) * | 2014-10-14 | 2015-01-28 | 广东翼卡车联网服务有限公司 | Internet-of-vehicles system based on mobile phone decoding and implementation method of Internet of vehicles |
| CN104410659A (en) * | 2014-10-14 | 2015-03-11 | 广东翼卡车联网服务有限公司 | Bluetooth-based information transmission system for Internet of Vehicles and implementation method thereof |
| CN104904242A (en) * | 2012-11-30 | 2015-09-09 | 麦恩电子股份有限公司 | System and method for providing targeted advertisements and geolocation information to an operator of a vehicle |
| CN104913788A (en) * | 2014-03-13 | 2015-09-16 | 深圳市赛格导航科技股份有限公司 | Auxiliary navigation method based on call center, system and vehicle navigation terminal |
| CN108512810A (en) * | 2017-02-24 | 2018-09-07 | 北京九五智驾信息技术股份有限公司 | The system that mobile terminal is communicated with car-mounted terminal |
| CN112097786A (en) * | 2019-06-17 | 2020-12-18 | 深圳市同行者科技有限公司 | Method and system for sending navigation destination to navigation equipment through sound wave |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103716473A (en) * | 2012-09-29 | 2014-04-09 | 深圳市众鸿科技股份有限公司 | Vehicle-mounted navigation communication system and method |
| CN104904242A (en) * | 2012-11-30 | 2015-09-09 | 麦恩电子股份有限公司 | System and method for providing targeted advertisements and geolocation information to an operator of a vehicle |
| CN104904242B (en) * | 2012-11-30 | 2019-04-02 | 麦恩电子股份有限公司 | For providing the system and method for targeted advertisement and geography information to vehicle driver |
| 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 |
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| CN103475701A (en) * | 2013-08-30 | 2013-12-25 | 北京远特科技有限公司 | Data transmission method of vehicle-mounted terminal and background system, as well as system and vehicle-mounted terminal |
| CN104913788A (en) * | 2014-03-13 | 2015-09-16 | 深圳市赛格导航科技股份有限公司 | Auxiliary navigation method based on call center, system and vehicle navigation terminal |
| CN104320445A (en) * | 2014-10-14 | 2015-01-28 | 广东翼卡车联网服务有限公司 | Internet-of-vehicles system based on mobile phone decoding and implementation method of Internet of vehicles |
| CN104410659A (en) * | 2014-10-14 | 2015-03-11 | 广东翼卡车联网服务有限公司 | Bluetooth-based information transmission system for Internet of Vehicles and implementation method thereof |
| CN108512810A (en) * | 2017-02-24 | 2018-09-07 | 北京九五智驾信息技术股份有限公司 | The system that mobile terminal is communicated with car-mounted terminal |
| CN112097786A (en) * | 2019-06-17 | 2020-12-18 | 深圳市同行者科技有限公司 | Method and system for sending navigation destination to navigation equipment through sound wave |
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Application publication date: 20120801 |