CN103630144A - Automobile acoustic control navigation device and method - Google Patents
Automobile acoustic control navigation device and method Download PDFInfo
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- CN103630144A CN103630144A CN201310649701.3A CN201310649701A CN103630144A CN 103630144 A CN103630144 A CN 103630144A CN 201310649701 A CN201310649701 A CN 201310649701A CN 103630144 A CN103630144 A CN 103630144A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3605—Destination input or retrieval
- G01C21/3608—Destination input or retrieval using speech input, e.g. using speech recognition
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3647—Guidance involving output of stored or live camera images or video streams
Abstract
The invention discloses an automobile acoustic control navigation device and an automobile acoustic control navigation method. The automobile acoustic control navigation device is in communication with a background system through a user mobile phone and comprises a switching module, a navigation module, a back-up module, an automobile mainframe, a display screen, a Bluetooth communication module and a judgment module, wherein the switching module is connected with the navigation module, the back-up module, the automobile mainframe, the display screen, the Bluetooth communication module and the judgment module, and the judgment module is connected with the Bluetooth communication module; when detecting a first control command, the switching module connects the navigation module to a video channel of the back-up module and connects the video channel of the back-up module to the display screen to enter the navigation state; the switching module controls the user mobile phone and the background system to in communication connection with each other according to a push-to-talk signal, the background system acquires a navigation information point according to a voice signal acquired by the user mobile phone and feeds the navigation information point back to the navigation module, finds out a geographic coordinate corresponding to the navigation information point in pre-stored map data, and acquires the current geographic position of a user to generate a navigation line so as to realize acoustic control navigation.
Description
Technical field
The present invention relates to vehicle mounted guidance technical field, relate in particular to a kind of automobile sound control guider and method.
Background technology
Car manufactures, according to the market demand and cost budgeting, designs different functions to different automobile types.For example, some automobile primary function play CD or radio reception, it is controlled display and receives vehicle carried video signal playback on display.Described display is also connected with vehicle-mounted camera, at when reversing, vehicle main frame, controls the convenient reversing of display display automobile scenery behind.Navigation feature is not set in such vehicle main frame.
If conventionally there is following mode when automobile will be set up navigation feature:
1, automobile navigation instrument and the holder of buying band screen, be fixed on automobile navigation instrument on automobile and navigate by holder.Because band screen automobile navigation instrument cost is higher, and its screen is less, and inconvenient user checks route; Simultaneously it may destroy in-vehicle device fixedly time, affect the interior integral layout of car.
2, vehicle main frame (comprising CD/ radio reception module) is replaced by the vehicle main frame with navigation feature.There is problem that can not be compatible or compatible poor in the vehicle main frame which cost is high, newly-increased and former car sound system, destroys former car sound system.
3, adopt LVDS video switch mode.Although which can obtain higher picture quality, because the manufacturer of different automobiles is different, automobile model is different with the productive year, the video decoding chip adopting is inconsistent.Must carry out independent debugging to every money automobile could mate with its specific video decoding chip, cause workload very large, so which compatibility is very poor, can not realize production in enormous quantities.
4, the combination of demoder and navigation.Which can combine accordingly according to different vehicles, and implementation is more flexible.But need to increase touch-screen, control, touch-screen installation inconvenience and cost are higher, affect user and drive during touch control operation, have traffic safety hidden danger.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of automobile sound control guider and method, when being intended to solve existing band screen automobile and increasing navigation feature cost higher, install inconvenient problem.
In order to achieve the above object, the present invention has taked following technical scheme:
An automobile sound control guider, is connected with background system communication by user mobile phone, and it comprises handover module, navigation module, reversing module, vehicle main frame, display screen, bluetooth communication module and judge module; Described handover module connects navigation module, reversing module, vehicle main frame, display screen, bluetooth communication module and judge module, described judge module connects bluetooth communication module, described bluetooth communication module and user mobile phone wireless connections, described user mobile phone is connected with background system communication;
Under former car duty, when described handover module detects the first steering order, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of reversing module is connected with display screen with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module; Display screen shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state:
The bluetooth module of bluetooth communication module and user mobile phone carries out wireless connections; Handover module sends link order, by bluetooth communication module, is wirelessly sent to user mobile phone according to the PTT signal of navigation module output, controls user mobile phone and is connected with background system communication; Described user mobile phone gathers user's voice signal and is transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and send to user mobile phone, and user mobile phone receives described navigation information and puts and send to navigation module; Navigation module is controlled navigation alternately by described navigation information point and the map datum prestoring.
Described automobile sound control guider, wherein, described navigation module is navigation box, comprising:
Dtmf decoder, carries out DTMF decoding for the navigation information point to after coding, is reduced into navigation information point;
Storer, for the map datum prestoring;
Loudspeaker, move towards for voice message navigation circuit;
Processor, finds out navigation information for the map datum prestoring and puts corresponding geographic coordinate, generates navigation circuit;
Described processor connected storage, dtmf decoder and loudspeaker.
Described automobile sound control guider, wherein, also comprises touch-screen, and described navigation module also comprises that described navigation touch screen interface connects touch-screen by handover module for receiving the navigation touch screen interface of the touching signals of touch-screen;
Described handover module is also for when the first steering order being detected, the navigation touch screen interface of navigation module being connected with touch-screen, and described touch-screen output touching signals is controlled the duty of navigation module.
Described automobile sound control guider, wherein, under navigational state, described handover module is also controlled vehicle main frame when to the second steering order and is connected with display screen;
Described vehicle main frame, also for starting former car pattern, is exported former car vision signal and is shown to display screen, enters former car duty;
Described handover module is also connected vehicle main frame when to the second steering order with touch-screen, described touch-screen output touching signals is controlled the duty of vehicle main frame.
Described automobile sound control guider, wherein, under navigational state, described handover module is also transferred to vehicle main frame by described astern signal when to astern signal, and handover module is connected the reversing camera lens of reversing module with its video channel; Reversing camera lens output back-up video signal enters the video channel of reversing module;
Described display screen shows back-up video signal, enters reversing state.
Described automobile sound control guider, wherein, described handover module comprises MCU, the first relay, the second relay, the 3rd relay and the 4th relay; The selection contact of described the first relay connects the power end of the 3rd relay, and the normally closed contact of the first relay connects reversing module, and the normally opened contact of the first relay connects the first output pin of MCU, and the power end of the first relay connects the second output pin of MCU; The selection contact of described the second relay connects touch-screen, and the normally closed contact of the second relay connects vehicle main frame, and the normally opened contact of the second relay connects the navigation touch screen interface of navigation module, and the power end of the second relay connects the 3rd output pin of MCU; The selection contact of the 3rd relay connects display screen, and the normally opened contact of the 3rd relay connects the video channel of reversing module; The selection contact of the 4th relay connects the video channel of reversing module, and the normally closed contact of the 4th relay connects the reversing camera lens of reversing module, and the normally opened contact of the 4th relay connects navigation module, and the power end of the 4th relay connects the 4th output pin of MCU.
Described automobile sound control guider, wherein, described the first relay, the second relay, the 3rd relay and the 4th relay are single-pole double-throw (SPDT) relay.
A voice navigation method that adopts described automobile sound control guider, it comprises step:
The duty of A, judgement automobile, when automobile carries out wireless connections in navigational state and with user mobile phone, handover module sends link order, by bluetooth communication module, is wirelessly sent to user mobile phone according to the PTT signal of navigation module output, controls user mobile phone and is connected with background system communication;
B, user mobile phone gather user's voice signal and are transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and send to user mobile phone;
C, user mobile phone receive described navigation information and put and send to navigation module, control alternately navigation with the map datum prestoring in navigation module.
Described voice navigation method, wherein, in described step B, described background system carries out sending to user mobile phone after dtmf code to navigation information point; Described navigation information point comprises the coordinate of destination title and destination.
Described voice navigation method, wherein, described step C specifically comprises:
Navigation module is put and sent to navigation information after C1, user mobile phone received code; Described navigation module carries out DTMF decoding to the navigation information point after encoding, and is reduced into navigation information point;
C2, navigation module find out navigation information and put corresponding geographic coordinate in the map datum prestoring, and generate navigation circuit;
C3, navigation module voice message navigation circuit trend.
Compared to prior art, the present invention is under former car duty, when described handover module detects the first steering order, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of reversing module is connected with display screen with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module; Display screen shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state.The present invention shares display screen by navigation module and reversing module, thereby the video channel that makes navigation module take reversing module by switching in the time of need to navigating realizes the broadcasting of navigation video, it takes full advantage of the display screen of former car and the video channel of reversing module, implementation is simple, is applicable to produce in enormous quantities.
Meanwhile, the bluetooth module of bluetooth communication module and user mobile phone carries out wireless connections, when judge module judges automobile in navigational state and wireless connections; Handover module sends link order to user mobile phone according to the PTT signal of navigation module output, controls user mobile phone and is connected with background system communication; Described user mobile phone gathers user's voice signal and is transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and send to user mobile phone, and user mobile phone receives described navigation information and puts and send to navigation module; Navigation module is controlled navigation alternately by described navigation information point and the map datum prestoring; Not dismantling any device of former car, do not reequip former car indoor design in the situation that, realize voice navigation, control mode is simple, is applicable to wideling popularize.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of automobile sound control guider of the present invention.
Fig. 2 is the process flow diagram of the voice navigation method of automobile sound control guider of the present invention.
Embodiment
The invention provides a kind of automobile sound control guider and method, for making object of the present invention, technical scheme and effect clearer, clear and definite, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, automobile sound control guider 10 provided by the invention is connected with background system communication by user mobile phone, and it combines to realize voice navigation with user mobile phone and background system.Described automobile sound control guider 10 comprises: handover module 100, navigation module 200, reversing module 300, vehicle main frame 400, display screen 500, bluetooth communication module 600 and judge module 700, described handover module 100 connects navigation module 200, reversing module 300, vehicle main frame 400, display screen 500, bluetooth communication module 600 and judge module 700, described judge module 700 connects bluetooth communication module 600, described bluetooth communication module 600 and user mobile phone wireless connections, described user mobile phone is connected with background system communication.
Under former car duty, when described handover module 100 detects the first steering order, output simulation astern signal is to vehicle main frame 400, navigation module 200 is connected with the video channel of reversing module 300, and the video channel of reversing module 300 is connected with display screen 500; Described navigation module 200 output navigation vision signals enter in the video channel of reversing module 300; Display screen shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame 400 starts simulation reversing mode, enters navigational state.
Described bluetooth communication module 600 carries out wireless connections with the bluetooth module of user mobile phone, when judge module 700 judges automobiles in navigational state and wireless connections; Handover module 100 sends link order, by bluetooth communication module 600 wireless (being bluetooth approach), sends to user mobile phone according to the PTT signal of navigation module 200 outputs, controls user mobile phone and is connected with background system communication; Described user mobile phone gathers user's voice signal and is transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and send to user mobile phone, and user mobile phone receives described navigation information and puts and send to navigation module; Navigation module 200 is controlled navigation alternately by described navigation information point and the map datum prestoring.
Wherein, described navigation module 200 is navigation box (not being with display screen), the present invention improves existing navigation box, has increased therein DTMF(dual-tone multifrequency) demoder, storer, loudspeaker and processor, described processor connected storage, dtmf decoder and loudspeaker.The map datum of described storer for prestoring.Dtmf decoder carries out DTMF decoding to the navigation information point after encoding, and is reduced into navigation information point; Processor finds out navigation information and puts corresponding geographic coordinate in the map datum prestoring, and generates navigation circuit.Loudspeaker are for voice message navigation circuit trend.Described navigation information point comprises the coordinate of destination title and destination.
On described navigation module 200, be also provided with " PTT " button, while pressing this button, processor can be exported PTT signal to MCU.Described storer is storaged voice prompt tone also, for example, " please input destination ".When output PTT signal, processor calls the voice message sound prestoring and plays by loudspeaker, and prompting user inputs the destination of navigation.
After processor generates navigation circuit, it also can detect user's current location in real time, and diagram data calls corresponding voice message and reports by loudspeaker in combination.Which way to go to point out user when there is minute cross road on map.This is prior art, and the present embodiment is not described further this.
Described the first steering order can be produced by the button on vehicle steering, from vehicle main frame 400 outputs.The level signal for example, producing when length is pressed (being more than or equal to 3 seconds) MODE key is as the first steering order, to realize the switching of navigation video and former car video.
In the specific implementation, described automobile sound control guider also comprises power management chip, and for powering to vehicle main frame, it is prior art, and the present invention is not described further this.
Should be understood that, reversing mode is the signal that display screen is play the video channel transmission that is reversing module 300, and this signal shows as the video pictures that reversing camera lens (being automobile camera below) is taken, and this is prior art.And described simulation reversing mode is the pattern that the present embodiment increases, although display screen is play the signal of the video channel transmission that is also reversing module 300, now the video channel of this reversing module 300 disconnects with reversing camera lens, is connected with navigation module.Navigation vision signal enters in the video channel of reversing module 300, and what display screen was play is navigation video.That is to say, the video channel of utilizing reversing module 300 under simulation reversing mode and navigation module be connected to play navigation video.
Mutual in order to realize man-machine touch, described automobile sound control guider also comprises touch-screen 800, described navigation module 200 also comprises for receiving the navigation touch screen interface of the touching signals of touch-screen, and described navigation touch screen interface connects touch-screens 800 by handover module 100.Described handover module 100 is also for when the first steering order being detected, the navigation touch screen interface of navigation module 200 being connected with touch-screen 500, and described touch-screen 500 output touching signals are controlled the duty of navigation module 200.Facilitate user's touch-control to select your destination, check guidance path etc.
Under navigational state, and navigation is when finish, and in order to exit navigation mode, is reduced into former car duty, and user can reduce switching by the volume key on bearing circle by length, and vehicle main frame 400 correspondences are exported the second steering orders.Described handover module 100 is also controlled vehicle main frame when to the second steering order and is connected with display screen; Now described vehicle main frame starts former car pattern, exports former car vision signal and shows to display screen 500, enters former car duty.That is to say and be reduced into the common duty of automobile, under this state, user can play CD or listen to radio station.
Meanwhile, described handover module 100 is also connected vehicle main frame 400 when to the second steering order with touch-screen 800, and described touch-screen 800 output touching signals are controlled the duty of vehicle main frames, and the man-machine touch-control of realizing under former car duty is mutual.
Under navigational state, user can also automatically switch into reversing mode when reversing.While moveing backward in prior art, can export astern signal (for high level), the present embodiment utilizes this astern signal as navigation---the switching foundation of reversing.Described handover module 100 is transferred to vehicle main frame by described astern signal when astern signal being detected, the reversing camera lens of reversing module 300 is connected with its video channel simultaneously.Because the video channel of the module 300 of moveing backward under navigational state is connected with display screen 500, now the reversing camera lens of reversing module 300 is connected with its video channel, the camera lens of moveing backward is exported in the video channel that back-up video signal enters the module 300 of moveing backward; Described display screen 500 shows back-up video signal, enters reversing state.
When reversing finishes, astern signal becomes low level.When handover module 100 detects low level astern signal, be judged as reversing and finish, its control navigation module 200 is connected with the video channel of reversing module 300, returns to navigational state.
During concrete enforcement, described handover module 100 comprises MCU, the first relay K 1, the second relay K 2, the 3rd relay K 3 and the 4th relay K 4.The selection contact 1 of described the first relay K 1 connects the power end 12 of the 3rd relay, the normally closed contact 2 of the first relay K 1 connects reversing module 300, the normally opened contact 3 of the first relay K 1 connects the first output pin OUT1 of MCU, and the power end 4 of the first relay K 1 connects the second output pin OUT2 of MCU; The selection contact 5 of described the second relay K 2 connects touch-screen 800, the normally closed contact 6 of the second relay K 2 connects vehicle main frame, the normally opened contact 7 of the second relay K 2 connects the navigation touch screen interface of navigation module, and the power end 8 of the second relay K 2 connects the 3rd output pin OUT3 of MCU; Described the 3rd relay K 3 is arranged in vehicle main frame, the selection contact 9 of the 3rd relay K 3 connects display screen 500, the video output unit that the normally closed contact 10 of the 3rd relay K 3 connects in vehicle main frame is (not shown, this video output unit is prior art, be used for exporting former car vision signal), the normally opened contact 11 of the 3rd relay K 3 connects the video channel of reversing module; The selection contact 13 of the 4th relay K 4 connects the video channel of reversing module, the normally closed contact 14 of the 4th relay K 4 connects the reversing camera lens of reversing module, the normally opened contact 15 of the 4th relay K 4 connects the 4th output pin OUT4 of the power end 16 connection MCU of navigation module 200, the four relay K 4.
Described reversing module 300 is prior art, and the present embodiment is the improvements of reversing module 300: increase by the 4th relay K 4 and select the reversing camera lens of reversing module 300 to be connected with its video channel, transmission back-up video signal; Or select the video channel of reversing module 300 to be connected with navigation module 200 transmission navigation vision signal.
Described bluetooth communication module 600 is prior art, and the present embodiment is its improvements, and bluetooth communication module 600 is controlled with the link order that being connected of user mobile phone exported by MCU; After successfully connecting, the sign that bluetooth communication module 600 feedback one level signals connect as success.
Please continue to refer to Fig. 1, the principle of work of the guider of automobile sound control described in the present embodiment is:
1, former car duty → navigational state:
Under former car duty, when with the head of a household, press on bearing circle MODE key time, vehicle main frame 400 produces the first steering orders, when MCU receives this first steering order, its first output pin OUT1 output simulation astern signal (high level is effective) gives the normally opened contact 3 of the first relay K 1; Meanwhile, the equal output HIGH voltage of the second output pin OUT2 to the four output pin OUT4 of MCU enters respectively the power end 4,8,16 of the first relay K 1, the second relay K 2, the 4th relay K 4.The first relay K 1, the second relay K 2 and the 4th relay K 4 all electric adhesive.The selection contact 1 of the first relay K 1 is connected with its normally opened contact 3, in simulation astern signal input vehicle main frame 400, then the power end 12 that transfers to the 3rd relay K 3 make the 3rd relay K 3 electric adhesive.The selection contact 5 of the second relay K 2 is connected with its normally opened contact 7, and touch-screen 800 is connected with the navigation touch screen interface of navigation module 200.The selection contact 9 of the 3rd relay K 3 is connected with its normally opened contact 11, and display screen 500 is connected with the video channel of reversing module 300.The selection contact 13 of the 4th relay K 4 is connected with its normally opened contact 15, and navigation module 200 is connected with the video channel of reversing module 300.After above-mentioned switching, the navigation vision signal of described navigation module 200 outputs enters in the video channel of reversing module 300; Display screen 500 shows the navigation vision signal of the video channel transmission of reversing module.Be that described vehicle main frame 400 starts simulation reversing mode, enter navigational state.Touch-screen 500 output touching signals are controlled the duty of navigation module 200
2, navigational state → former car duty:
Under navigational state, when pressing the volume key on bearing circle with the head of a household, vehicle main frame 400 produces the first steering orders, when MCU receives this first steering order, the equal Non voltage output of its second output pin OUT2 to the four output pin OUT4, is equivalent to power-off.The first relay K 1, the second relay K 2 and the 4th relay K 4 are all reduced into auto-closing state, and the selection contact of each relay is connected with its normally closed contact.Simultaneously, due to now without astern signal (being that astern signal is low level), the 3rd relay K 3 is also reduced into auto-closing state, vehicle main frame 400 connects respectively touch-screen 800 and display screen 500, the video output unit (the selection contact 9 of the 3rd relay K 3 is connected with normally opened contact 11) that display screen 500 connects in vehicle main frame, vehicle main frame 400 starts former car pattern, exports former car vision signal and shows to display screen 500, enters former car duty.
3, navigational state → reversing state:
Under navigational state, the module of moveing backward when user moves backward 300 can produce an astern signal (high level is effective), when MCU detects this astern signal, its second output pin OUT2 Non voltage output makes the first relay K 1 power-failure close, control vehicle main frame 400 and be connected with reversing module 300, astern signal transfer in vehicle main frame 400, control the 3rd relay K 3 must electric adhesive (the selection contact 9 of the 3rd relay K 3 is connected with normally opened contact 11).The 4th output pin OUT4 Non voltage output of MCU makes the 4th relay K 4 power-failure closes, and the reversing camera lens of controlling reversing module 300 is connected with its video channel.Reversing camera lens output back-up video signal enters in the video channel of reversing module 300.The 3rd output pin OUT3 of MCU keeps current high level output.Now display screen 500 shows back-up video signal, enters reversing state.
In addition, when reversing finishes, astern signal becomes low level, MCU is judged as reversing while this low level being detected finishes, the second output pin OUT2 of MCU and the 4th output pin OUT4 output high level, make vehicle main frame 400 obtain simulation astern signal, navigation module 200 is connected with the video channel of reversing module 300, returns to navigational state.
4, voice navigation under navigational state:
Whether judge module 700 can judge automobile in navigational state by detecting the magnitude of voltage of the second output pin OUT2 to the four output pin OUT4 of MCU, and the level signal that is successfully connected rear output by receiving bluetooth communication module 600 and user mobile phone can be judged as successfully and connect.By above-described embodiment (1, former car duty → navigational state) automobile, in navigational state and with user mobile phone, carry out wireless connections.
When user presses " PTT " button on navigation module 200, the processor output PTT signal of navigation module 200 is to MCU, MCU sends link order (telephone number that comprises background system) and sends to user mobile phone by bluetooth communication module 600, controls user mobile phone and is connected (controlling the phone that user mobile phone is dialed background system) with background system communication.Meanwhile, processor calls the voice message sound prestoring and plays by loudspeaker, and prompting user inputs the destination of navigation.
Then user mobile phone gathers user's voice signal (being the title of destination) and is transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and carry out sending to user mobile phone after dtmf code.Described navigation information point comprises the coordinate of destination title and destination.Navigation information after user mobile phone received code puts and sends to the dtmf decoder of navigation module 200 to carry out DTMF decoding, is reduced into navigation information point.The processor of navigation module 200 finds out navigation information and puts corresponding geographic coordinate in the map datum prestoring, and obtains the current geographic position of user and generates navigation circuit.Last navigation module 200 voice message navigation circuit trends.
In addition, the present embodiment can also be in " PTT " pattern, be that navigation module 200 is connected with user mobile phone bluetooth, in the situation that user mobile phone is connected with background system communication, carries out communication call service with background system.Can carry out the high-quality car internet services such as weather forecast query, national roadside assistance, hotel reservation, plane ticket booking.For example, user links up by certain telephonist's phone of mobile phone and background system, consulting weather forecast.Telephonist sends to user mobile phone by weather forecast in the mode of note.User mobile phone sends to navigation module 200 by bluetooth communication module 600 by weather forecast.The dtmf decoder of navigation module 200 carries out being transferred to processor after DTMF decoding to the note of weather forecast.Processor can convert voice messaging to by the note of weather forecast (Word message), by loudspeaker, plays.Processor also can transfer to display screen in the mode of the vision signal of navigating by the note of weather forecast (Word message) and show.Described automobile sound control guider 10, in conjunction with user mobile phone and background system, by playing or show the relevant information of background system transmission, makes user network the epoch by the car that enters of least cost mode, enjoys safety and driving life easily that acoustic control brings.
The present embodiment makes full use of the principle of work of relay, obtains adhesive (the selection contact of relay is connected with its normally opened contact) when electric, during without electricity closed (the selection contact of relay is connected with its normally closed contact).Even handover module 100 faults, above-mentioned relay can be guaranteed the connected mode of former car, can not affect former car function, has greatly improved the stability of product.
Based on above-mentioned automobile sound control guider, the step that the present embodiment switches comprises:
The first step, under former car duty, when handover module detects the first steering order, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of the module of moveing backward is connected with display screen with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module.
Mutual in order to realize man-machine touch, the described first step also comprises: handover module is connected the navigation touch screen interface of navigation module when the first steering order being detected with the touch-screen of automobile, and described touch-screen output touching signals is controlled the duty of navigation module.
Second step, display screen show the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state.
After described second step, also comprise:
1, navigational state and former car duty are switched: under navigational state, control vehicle main frame and be connected with display screen when handover module detects the second steering order.Vehicle main frame starts former car pattern, exports former car vision signal and shows to display screen, enters former car duty.In addition, when handover module detects the second steering order, also vehicle main frame is connected with touch-screen, described touch-screen output touching signals is controlled the duty of vehicle main frame.Thereby realize the switching that navigation feature is reduced into former car function.
2, navigational state and reversing state switch: under navigational state, when handover module detects astern signal, described astern signal is transferred to vehicle main frame, handover module is connected the reversing camera lens of reversing module with its video channel; Reversing camera lens output back-up video signal enters the video channel of reversing module.Described display screen shows back-up video signal, enters reversing state.Thereby the switching between the navigation feature of realization and car-backing function.
Described automobile enters after navigational state, and the present invention also provides a kind of voice navigation method of automobile sound control guider, and as shown in Figure 2, it comprises step:
The duty of S100, judgement automobile, when automobile carries out wireless connections in navigational state and with user mobile phone, handover module sends link order, by bluetooth communication module, is wirelessly sent to user mobile phone according to the PTT signal of navigation module output, controls user mobile phone and is connected with background system communication.
S200, user mobile phone gather user's voice signal and are transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and send to user mobile phone.
S300, user mobile phone receive described navigation information and put and send to navigation module, control alternately navigation with the map datum prestoring in navigation module.
In described step S200, described background system carries out sending to user mobile phone after dtmf code to navigation information point; Described navigation information point comprises the coordinate of destination title and destination.
Described step S300 specifically comprises:
1, navigation module is put and sent to the navigation information after user mobile phone received code; Described navigation module carries out DTMF decoding to the navigation information point after encoding, and is reduced into navigation information point;
2, navigation module finds out navigation information and puts corresponding geographic coordinate in the map datum prestoring, and generates navigation circuit;
3, navigation module voice message navigation circuit trend.
In sum, the present invention is under former car duty, output simulation astern signal while the first steering order being detected by the MCU of handover module, control each relay switch selector channel simultaneously, make navigation module be connected and the video channel of reversing module is connected with display screen with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module; Display screen shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state; The present invention shares display screen by navigation module and reversing module, thereby the video channel that makes navigation module take reversing module by switching in the time of need to navigating realizes the broadcasting of navigation video, it takes full advantage of the display screen of former car and the video channel of reversing module, implementation is simple, is applicable to produce in enormous quantities.Meanwhile, the present invention makes full use of the principle of work of relay, during without electricity closed (the selection contact of relay is connected with its normally closed contact).Even handover module 100 faults, above-mentioned relay can be guaranteed the connected mode of former car, can not affect former car function, has greatly improved the stability of product.
In addition, enter after navigational state, the present invention is connected with background system communication by key control user mobile phone by " PTT " on navigation module, background system obtains corresponding navigation information according to the voice signal of user mobile phone collection and puts and feed back to user mobile phone, user mobile phone sends to navigation module by bluetooth communication module, in the map datum prestoring, find out navigation information and put corresponding geographic coordinate, obtain the current geographic position of user and generate navigation circuit, realize voice navigation.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. an automobile sound control guider, is connected with background system communication by user mobile phone, it is characterized in that, comprises handover module, navigation module, reversing module, vehicle main frame, display screen, bluetooth communication module and judge module; Described handover module connects navigation module, reversing module, vehicle main frame, display screen, bluetooth communication module and judge module, described judge module connects bluetooth communication module, described bluetooth communication module and user mobile phone wireless connections, described user mobile phone is connected with background system communication;
Under former car duty, when described handover module detects the first steering order, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of reversing module is connected with display screen with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module; Display screen shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state:
The bluetooth module of bluetooth communication module and user mobile phone carries out wireless connections; Handover module sends link order, by bluetooth communication module, is wirelessly sent to user mobile phone according to the PTT signal of navigation module output, controls user mobile phone and is connected with background system communication; Described user mobile phone gathers user's voice signal and is transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and send to user mobile phone, and user mobile phone receives described navigation information and puts and send to navigation module; Navigation module is controlled navigation alternately by described navigation information point and the map datum prestoring.
2. automobile sound control guider according to claim 1, is characterized in that, described navigation module is navigation box, comprising:
Dtmf decoder, carries out DTMF decoding for the navigation information point to after coding, is reduced into navigation information point;
Storer, for the map datum prestoring;
Loudspeaker, move towards for voice message navigation circuit;
Processor, finds out navigation information for the map datum prestoring and puts corresponding geographic coordinate, generates navigation circuit;
Described processor connected storage, dtmf decoder and loudspeaker.
3. automobile sound control guider according to claim 2, is characterized in that, also comprise touch-screen, described navigation module also comprises that described navigation touch screen interface connects touch-screen by handover module for receiving the navigation touch screen interface of the touching signals of touch-screen;
Described handover module is also for when the first steering order being detected, the navigation touch screen interface of navigation module being connected with touch-screen, and described touch-screen output touching signals is controlled the duty of navigation module.
4. automobile sound control guider according to claim 3, is characterized in that, under navigational state, described handover module is also controlled vehicle main frame when to the second steering order and is connected with display screen;
Described vehicle main frame, also for starting former car pattern, is exported former car vision signal and is shown to display screen, enters former car duty;
Described handover module is also connected vehicle main frame when to the second steering order with touch-screen, described touch-screen output touching signals is controlled the duty of vehicle main frame.
5. automobile sound control guider according to claim 3, it is characterized in that, under navigational state, described handover module is also transferred to vehicle main frame by described astern signal when to astern signal, and handover module is connected the reversing camera lens of reversing module with its video channel; Reversing camera lens output back-up video signal enters the video channel of reversing module;
Described display screen shows back-up video signal, enters reversing state.
6. automobile sound control guider according to claim 3, is characterized in that, described handover module comprises MCU, the first relay, the second relay, the 3rd relay and the 4th relay; The selection contact of described the first relay connects the power end of the 3rd relay, and the normally closed contact of the first relay connects reversing module, and the normally opened contact of the first relay connects the first output pin of MCU, and the power end of the first relay connects the second output pin of MCU; The selection contact of described the second relay connects touch-screen, and the normally closed contact of the second relay connects vehicle main frame, and the normally opened contact of the second relay connects the navigation touch screen interface of navigation module, and the power end of the second relay connects the 3rd output pin of MCU; The selection contact of the 3rd relay connects display screen, and the normally opened contact of the 3rd relay connects the video channel of reversing module; The selection contact of the 4th relay connects the video channel of reversing module, and the normally closed contact of the 4th relay connects the reversing camera lens of reversing module, and the normally opened contact of the 4th relay connects navigation module, and the power end of the 4th relay connects the 4th output pin of MCU.
7. automobile sound control guider according to claim 6, is characterized in that, described the first relay, the second relay, the 3rd relay and the 4th relay are single-pole double-throw (SPDT) relay.
8. a voice navigation method that adopts automobile sound control guider described in claim 1, is characterized in that, comprises step:
The duty of A, judgement automobile, when automobile carries out wireless connections in navigational state and with user mobile phone, handover module sends link order, by bluetooth communication module, is wirelessly sent to user mobile phone according to the PTT signal of navigation module output, controls user mobile phone and is connected with background system communication;
B, user mobile phone gather user's voice signal and are transferred to background system, and background system obtains corresponding navigation information according to described voice signal and puts and send to user mobile phone;
C, user mobile phone receive described navigation information and put and send to navigation module, control alternately navigation with the map datum prestoring in navigation module.
9. voice navigation method according to claim 8, is characterized in that, in described step B, described background system carries out sending to user mobile phone after dtmf code to navigation information point; Described navigation information point comprises the coordinate of destination title and destination.
10. voice navigation method according to claim 9, is characterized in that, described step C specifically comprises:
Navigation module is put and sent to navigation information after C1, user mobile phone received code; Described navigation module carries out DTMF decoding to the navigation information point after encoding, and is reduced into navigation information point;
C2, navigation module find out navigation information and put corresponding geographic coordinate in the map datum prestoring, and generate navigation circuit;
C3, navigation module voice message navigation circuit trend.
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