CN103117001A - Broadcast method and broadcast system of vehicle-loaded real-time traffic information - Google Patents
Broadcast method and broadcast system of vehicle-loaded real-time traffic information Download PDFInfo
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- CN103117001A CN103117001A CN2013100246596A CN201310024659A CN103117001A CN 103117001 A CN103117001 A CN 103117001A CN 2013100246596 A CN2013100246596 A CN 2013100246596A CN 201310024659 A CN201310024659 A CN 201310024659A CN 103117001 A CN103117001 A CN 103117001A
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Abstract
The invention is applied to the field of information broadcast, and provides a broadcast method and a broadcast system of vehicle-loaded real-time traffic information. The broadcast method includes the following steps: (1) A vehicle-loaded terminal is connected with a background server through network communication. (2) The vehicle-loaded terminal locates a current vehicle through utilization of the network communication and nearby base stations, and obtains information of the current location of the fixed vehicle. (3) The vehicle-loaded terminal sends the obtained location information of the current vehicle to the background server through the network communication, and the background server receives the location information of the current vehicle. (4) The background server computes real-time traffic information of vehicles at the current location according to the location information of the current vehicle, converts the real-time traffic information of the location of the current vehicle into Chinese words which can be broadcasted, and sends the Chinese words back to the vehicle-loaded terminal through the network communication. (5) The vehicle-loaded terminal broadcasts the real-time traffic information through a text-to-speech (TTS) voice broadcast system, and the data format of the real-time traffic information in Chinese words is concise and clear.
Description
Technical field
The information that the invention belongs to is reported the field, relates in particular to a kind of broadcasting method and broadcasting system of vehicle-mounted Real-time Traffic Information.
Background technology
Traditional car-mounted terminal is reported Real-time Traffic Information, all adopt the Real-time Traffic Information that receives specific coding in terminal, when car-mounted terminal receives specific coding from server, application through navigational system and visualization system combination, Real-time Traffic Information is showed the driver, make the driver recognize current transport information situation.This displaying Real-time Traffic Information mode understands for the driver driving that traffic conditions easily affects the driver, and this displaying is also wanted navigational system to be combined with visualization system just to show Real-time Traffic Information, limit the understanding of driver to traffic conditions.
In sum, traditional Real-time Traffic Information is reported and is had the defective that the Real-time Traffic Information data layout is complicated, read inconvenience.
Summary of the invention
The invention reside in provides a kind of vehicle-mounted Real-time Traffic Information broadcasting method, is intended to solve the problem that the Real-time Traffic Information data layout is complicated, read inconvenience.
The present invention is achieved in that a kind of broadcasting method of vehicle-mounted Real-time Traffic Information, said method comprising the steps of:
A, car-mounted terminal connect background server by wireless telecommunications;
B, car-mounted terminal to positioning when vehicle in front, and utilize the base station to obtain positioned vehicle current position information by the base station;
C, car-mounted terminal send to background server with the current vehicle location information exchange;
D, background server calculate the current vehicle location Real-time Traffic Information according to vehicle position information, and the current vehicle location Real-time Traffic Information is changed into Chinese information, and Chinese Real-time Traffic Information is sent to car-mounted terminal;
E, car-mounted terminal are reported out with Real-time Traffic Information by the TTS voice system;
Described Real-time Traffic Information is when vehicle in front present position peripheral information and works as the universe information in vehicle in front city of living in;
Described peripheral information is the current real-time traffic situation in all roads in preset range centered by vehicle in front;
Described universe information is when the current real-time traffic situation of vehicle in front major urban arterial highway of living in.
Further technical scheme of the present invention is: comprise the following steps in described steps A:
Comprise the following steps in described steps A:
A1, car-mounted terminal connect background server by wireless telecommunications;
A2, be connected to background server as car-mounted terminal, execution in step B, be not connected to background server as car-mounted terminal, repeated execution of steps A1.
Further technical scheme of the present invention is: comprise the following steps in described step B:
B1, car-mounted terminal position working as vehicle in front by the base station;
B2, as architecture to work as vehicle in front, execution in step B3, arrive as the base station no-fix and work as vehicle in front, repeated execution of steps B1;
B3, utilize the base station to obtain positioned vehicle current position information;
B4, get positioned vehicle current position information as the base station, execution in step C does not get positioned vehicle current position information, repeated execution of steps B3 as the base station.
Further technical scheme of the present invention is: comprise the following steps in described step D:
D1, background server calculate the current vehicle location Real-time Traffic Information according to vehicle position information;
D2, background server change into Chinese information with the current vehicle location Real-time Traffic Information;
D3, background server send to car-mounted terminal with Chinese Real-time Traffic Information.
Further technical scheme of the present invention is: comprise the following steps in described step D1:
D11, background server calculate the current vehicle location Real-time Traffic Information according to vehicle position information;
D12, calculate the current vehicle location Real-time Traffic Information as background server, execution in step D2, do not calculate the current vehicle location Real-time Traffic Information as background server, repeated execution of steps D11.
Further technical scheme of the present invention is: comprise the following steps in described step D2:
D21, background server change into Chinese information with the current vehicle location Real-time Traffic Information;
D22, as the current vehicle location Real-time Traffic Information is changed into Chinese information, execution in step D3, as the current vehicle location Real-time Traffic Information not being changed into Chinese information, repeated execution of steps D21.
Further technical scheme of the present invention is: described preset range is take radius centered by the vehicle in front present position as less than or equal to real-time traffic situation in the circle of 8 kms.
The present invention also provides a kind of broadcasting system of vehicle-mounted Real-time Traffic Information, comprising:
Car-mounted terminal is used for connecting background server, utilizing architecture to work as the vehicle in front present position, obtain when vehicle in front present position information, current vehicle location information is sent to background server and report and work as vehicle in front present position Real-time Traffic Information by network communication;
Background server is used for current vehicle location information is calculated to be Real-time Traffic Information, Real-time Traffic Information is changed into Chinese information and the Chinese information of real-time traffic is sent to car-mounted terminal;
described car-mounted terminal comprises central processing unit, display module, data transmit-receive module, audio-frequency module, radio, power amplifier module, loudspeaker and with the MP3 of USB interface, described central processing unit output terminal connects respectively the audio unit input end, receiver inlet, the display module input end, described central processing unit connects described data transmit-receive module, described audio-frequency module output terminal connects described power amplifier module input end, described audio-frequency module input end connects described data transmit-receive module output terminal, the radio output terminal, described power amplifier module output terminal connects described loudspeaker, described MP3 connects described central processing unit, described MP3 output terminal connects described audio-frequency module.
Further technical scheme of the present invention is: what described data transmit-receive module adopted is 3G network communication or GPRS network communication.
Further technical scheme of the present invention is: adopt serial communication mode between described data transmit-receive module and described central processing unit.
The invention has the beneficial effects as follows: report Real-time Traffic Information to change into Chinese character information output by background server, make the Real-time Traffic Information data layout short and sweet.Utilize the TTS voice broadcasting system to report out Real-time Traffic Information by vehicle-mounted radio, obtaining information is simple, and the driver does not need to see that screen just can get Real-time Traffic Information.
Description of drawings
Fig. 1 is the vehicle-mounted Real-time Traffic Information broadcasting method process flow diagram that the embodiment of the present invention provides;
Fig. 2 is the broadcasting system structured flowchart based on broadcasting method that the embodiment of the present invention provides;
Fig. 3 is the broadcasting system structural drawing based on broadcasting method that the embodiment of the present invention provides.
Embodiment
Reference numeral: 203-display unit 204-audio unit 205-radio unit, 10-background server 20-car-mounted terminal 201-MCU 202-data transmit-receive unit 206-MP3 207-power amplifier unit 208-loudspeaker
Fig. 1 shows the process flow diagram of the broadcasting method of vehicle-mounted Real-time Traffic Information provided by the invention, and details are as follows:
In step S1, when the user uses the broadcasting system of vehicle-mounted Real-time Traffic Information, open the broadcasting system of vehicle-mounted Real-time Traffic Information, car-mounted terminal 20 is connected with background server 10 by wireless network communication.
In step S2, broadcasting system judges whether car-mounted terminal 20 is connected to background server 10.If be connected to background service 10, execution in step S3 is not if be connected to background server 10, till waiting for that car-mounted terminal 20 is connected to background server 10.When car-mounted terminal 20 is connected by wireless network with background server 10, employing be GPRS network communication or 3G network communication.The signal broad covered area that 3G network communication is communicated by letter with GPRS network, the network signal dead angle is less, easily obtains with background server 10 to be connected.GPRS is the abbreviation of General Packet Radio Service, i.e. general packet radio service technology, and it is a kind of mobile data services that the gsm mobile telephone user can use.GPRS can say the continuity of GSM.GPRS with in the past continuously different in the mode of channel transmission, is to transmit with package (Packet) formula, so the expense that the user bears is to calculate with its data transmission unit, is not its whole channel of use, and is comparatively cheap in theory.The transfer rate of GPRS can be promoted to 56 114Kbps even.3G is 3G (Third Generation) Moblie technology (3rd-generation, 3G), refers to support the honeycomb mobile communication technology of high speed data transfer.The 3G service can transmit sound and data message simultaneously, and speed is generally more than hundreds of kbps.3G exists four kinds of standard: CDMA2000, WCDMA, TD-SCDMA, WiMAX at present.
In step S3, car-mounted terminal 20 is located carry out GPS when vehicle in front by near the base station the network service utilization.
In step S4, broadcasting system judges current vehicle location the base station.If architecture is to working as vehicle in front, execution in step S5 is if architecture less than working as vehicle in front, is waited for that architecture arrives and worked as vehicle in front.Described base station is that the public mobile communication base station is a kind of form of radio station, refers in certain area of radio coverage, and by mobile switching center, and the information of carrying out between the mobile telephone terminal transceiving letter radio station of transmitting.The construction of mobile communication base station is all generally to carry out around coverage rate, speech quality, returns of investment, construction difficulty or ease, the key element such as easy to maintenance.To datumization, packetizing future development, the development trend of mobile communication base station must be also broadband, large coverage rate construction and IPization along with the mobile communications network business.
In step S5, arrive by network positions in the base station and work as vehicle in front, car-mounted terminal 20 utilizes the base station to get the information of the current position of positioned vehicle.
In step S6, broadcasting system judges obtaining of current vehicle location information.If get the information when the vehicle in front position, execution in step S7, if obtain less than the positional information when vehicle in front, car-mounted terminal 20 gets information when the vehicle in front present position by the base station.
In step S7, utilize the base station to get information when the vehicle in front position at car-mounted terminal 20, car-mounted terminal 20 sends to background server 10 by what wireless communication will get when vehicle in front present position information.
In step S8, when background server 10 receives positional information when vehicle in front, background server 10 can go out according to the positional information calculation when vehicle in front that receives the Real-time Traffic Information situation of current vehicle location.
In step S9, broadcasting system can judge whether to obtain the Real-time Traffic Information of current vehicle location.If background server 10 is by going out the Real-time Traffic Information when the vehicle in front present position when the positional information calculation of vehicle in front, execution in step S10, if background server 10 does not go out Real-time Traffic Information when the vehicle in front present position by the positional information calculation when vehicle in front, wait background server 10 to calculate Real-time Traffic Information situation when the vehicle in front present position.
In step S10, the Real-time Traffic Information that background server 10 will be worked as the vehicle in front present position changes into the Chinese character information that can report.The Word message form of Chinese is short and sweet, and transfer rate is high.
In step S11, can judge whether the Real-time Traffic Information when the vehicle in front present position is changed into Chinese character information in broadcasting system.If fruit will change into Chinese character information, execution in step S12, if do not change into Chinese character information, wait for that background server 10 transforms Chinese character information.
In step S12, background server 10 sends it back car-mounted terminal 20 with the Chinese character information that changes into by wireless network communication.
In step S13, the Real-time Traffic Information when the vehicle in front present position that car-mounted terminal 20 is beamed back background server 10 by the TTS voice broadcasting system of self is reported to the driver and is listened to the traffic conditions of understanding current road surface.Because of background server 10 transmission be Chinese character information, car-mounted terminal 20 receives and need not decoding, can directly use.By the Real-time Traffic Information of TTS voice broadcast, make the driver not need to see that screen just can learn the road traffic situation of current region and place major urban arterial highway.
Change into Chinese character information output by background server 10 newspaper Real-time Traffic Informations, make the Real-time Traffic Information data layout short and sweet, transfer efficiency is high, and car-mounted terminal 20 receives Word message and need not decoding, can directly use.Car-mounted terminal utilizes the TTS voice broadcasting system to report out Real-time Traffic Information, and obtaining information is simple, and the driver does not need to see that screen just can get Real-time Traffic Information.Comprised the traffic conditions of the major trunk roads in the traffic conditions of current region and city of living at described Real-time Traffic Information.
as Fig. 2, shown in 3, the broadcasting system of a kind of vehicle-mounted Real-time Traffic Information provided by the invention, this broadcasting system comprises car-mounted terminal 20 and background server 10, described car-mounted terminal 20 is connected 10 by radio communication with described background server, described car-mounted terminal 20 comprises MCU201, display unit 203, data transmit-receive unit 202, audio unit 204, radio unit 205, power amplifier unit 207, the MP3206 that loudspeaker 208 reach with USB interface, described MCU201 output terminal connects respectively audio unit 204 input ends, radio unit 205 input ends, display unit 203 input ends, the described MCU201 described data transmit-receive of connection unit 202, described audio unit 204 output terminals connect described power amplifier unit 207 input ends, described audio unit 204 input ends connect described data transmit-receive unit 202 output terminals, radio unit 205 output terminals, described power amplifier unit 207 output terminals connect described loudspeaker 208, described MP3206 connects described MCU201, described MP2063 output terminal connects described audio unit 203.Set up wireless telecommunications system on original car-mounted terminal 20.Make car-mounted terminal 20 to obtain traffic information on background server 20 by wireless telecommunications, background server 20 changes into character message transmission to car-mounted terminal 20 with traffic information, and car-mounted terminal 20 is reported out by the form of TTS voice.
Described car-mounted terminal 20 is the C/S framework with described background server 10 employings.
Described C/S(Client/Server) framework, i.e. everybody client-server structure of knowing.It is software system architecture, can take full advantage of the advantage of two ends hardware environment by it, task is reasonably allocated to Client end and Server brings in realization, has reduced the communication-cost of system.The most application software system is all the double-layer structure of Client/Server form, due to present software application system to distributed Web application development, Web and Client/Server use can carry out same business processing, uses different module shared logic assemblies; Therefore, the inner user with the outside can access new and existing application system, can expand by the logic in existing application system the application system that makes new advances.This is the developing direction of present application system namely.
Although what traditional C/S architecture adopted is open mode, this is the opening of system development one-level, is that client or server end all also need specific software support in specific the application.Due to the user could not be provided the open environment of real expectation, the software of C/S structure need to be for the software of different operating system system development different editions, the update of product is very fast in addition, has been difficult to adapt to hundred above LAN subscriber of computer and has used simultaneously.
Described data transmit-receive unit 202 adopts wireless communication protocol.
Described wireless communication protocol is 3G network communication or GPRS network communication.
Described data transmit-receive unit 202 adopts serial communication mode to carry out exchanges data with described MCU201.
Described data transmit-receive unit 202 is provided with the SIM card interface.
Described MCU201 adopts the I2C bus mode to be connected with described MP3206 to carry out data communication, and described MP3206 has USB interface.I2C(Inter-Integrated Circuit) bus is for connecting microprocessor and peripherals thereof.It is the extensive a kind of bus standard that adopts in microelectronics Control on Communication field.It is a kind of special shape of synchronous communication, has an interface line few, and control mode is simple, and the device package form is little, and traffic rate is than advantages of higher.
Described MCU201 adopts the I/O mode to be connected with described display unit 203.
Described display unit 203 comprises push-button unit and driver element.
Described MCU201 adopts the I2C bus mode to be connected with described audio unit 207.
Described audio unit 207 input ends are provided with the audio input port of external connection external equipment.
Described MCU201 adopts the I2C bus modes to be connected with described radio unit 204.
Described broadcasting system is simple in structure, and is easy to operate, and cost is low.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the broadcasting method of a vehicle-mounted Real-time Traffic Information, is characterized in that, said method comprising the steps of:
A, car-mounted terminal connect background server by wireless telecommunications;
B, car-mounted terminal to positioning when vehicle in front, and utilize the base station to obtain positioned vehicle current position information by the base station;
C, car-mounted terminal send to background server with the current vehicle location information exchange;
D, background server calculate the current vehicle location Real-time Traffic Information according to vehicle position information, and the current vehicle location Real-time Traffic Information is changed into Chinese information, and Chinese Real-time Traffic Information is sent to car-mounted terminal;
E, car-mounted terminal are reported out with Real-time Traffic Information by the TTS voice system;
Described Real-time Traffic Information is when vehicle in front present position peripheral information and works as the universe information in vehicle in front city of living in;
Described peripheral information is the current real-time traffic situation in all roads in preset range centered by vehicle in front;
Described universe information is when the current real-time traffic situation of vehicle in front major urban arterial highway of living in.
2. broadcasting method according to claim 1, is characterized in that, comprises the following steps in described steps A:
A1, car-mounted terminal connect background server by wireless telecommunications;
A2, be connected to background server as car-mounted terminal, execution in step B, be not connected to background server as car-mounted terminal, repeated execution of steps A1.
3. broadcasting method according to claim 2, is characterized in that, comprises the following steps in described step B:
B1, car-mounted terminal position working as vehicle in front by the base station;
B2, as architecture to work as vehicle in front, execution in step B3, arrive as the base station no-fix and work as vehicle in front, repeated execution of steps B1;
B3, utilize the base station to obtain positioned vehicle current position information;
B4, get positioned vehicle current position information as the base station, execution in step C does not get positioned vehicle current position information, repeated execution of steps B3 as the base station.
4. broadcasting method according to claim 3, is characterized in that, comprises the following steps in described step D:
D1, background server calculate the current vehicle location Real-time Traffic Information according to vehicle position information;
D2, background server change into Chinese information with the current vehicle location Real-time Traffic Information;
D3, background server send to car-mounted terminal with Chinese Real-time Traffic Information.
5. broadcasting method according to claim 4, is characterized in that, comprises the following steps in described step D1:
D11, background server calculate the current vehicle location Real-time Traffic Information according to vehicle position information;
D12, calculate the current vehicle location Real-time Traffic Information as background server, execution in step D2, do not calculate the current vehicle location Real-time Traffic Information as background server, repeated execution of steps D11.
6. broadcasting method according to claim 5, is characterized in that, comprises the following steps in described step D2:
D21, background server change into Chinese information with the current vehicle location Real-time Traffic Information;
D22, as the current vehicle location Real-time Traffic Information is changed into Chinese information, execution in step D3, as the current vehicle location Real-time Traffic Information not being changed into Chinese information, repeated execution of steps D21.
7. according to claim 1-6 described broadcasting methods, is characterized in that, described preset range is take radius centered by the vehicle in front present position as less than or equal to real-time traffic situation in the circle of 8 kms.
8. the broadcasting system of a vehicle-mounted Real-time Traffic Information, is characterized in that, comprising:
Car-mounted terminal is used for connecting background server, utilizing architecture to work as the vehicle in front present position, obtain when vehicle in front present position information, current vehicle location information is sent to background server and report and work as vehicle in front present position Real-time Traffic Information by network communication;
Background server is used for current vehicle location information is calculated to be Real-time Traffic Information, Real-time Traffic Information is changed into Chinese information and the Chinese information of real-time traffic is sent to car-mounted terminal;
described car-mounted terminal comprises central processing unit, display module, data transmit-receive module, audio-frequency module, radio, power amplifier module, loudspeaker and with the MP3 of USB interface, described central processing unit output terminal connects respectively the audio unit input end, receiver inlet, the display module input end, described central processing unit connects described data transmit-receive module, described audio-frequency module output terminal connects described power amplifier module input end, described audio-frequency module input end connects described data transmit-receive module output terminal, the radio output terminal, described power amplifier module output terminal connects described loudspeaker, described MP3 connects described central processing unit, described MP3 output terminal connects described audio-frequency module.
9. broadcasting system according to claim 8 is characterized in that: what described data transmit-receive module adopted is 3G network communication or GPRS network communication.
10. broadcasting system according to claim 9, is characterized in that: adopt serial communication mode between described data transmit-receive module and described central processing unit.
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Application publication date: 20130522 |