CN201750444U - Vehicular active interest point searching system - Google Patents

Abstract

A vehicular active interest point searching system relates to the technical field of vehicle navigation and solves the technical problem of reducing cost and searching interest points actively. The system comprises a proxy server, a multi-content server, and a vehicle-mounted bluetooth device and a cell phone which are arranged in a vehicle; the vehicle-mounted bluetooth device is connected with the cell phone in a bluetooth way, and then connected with the proxy server by the cell phone; the vehicle-mounted bluetooth device comprises a central processor, a random storage, a nonvolatile storage, a UART (universal asynchronous receiver/transmitter) communication module, an audio coding and decoding module, a GPS (global position system) navigation module, an vehicle-mounted bluetooth transmission module, and a CAN (controller area network) transceiving module; the audio input interface of the audio coding and decoding module is connected with a microphone, and the audio output interface is connected with a vehicle-mounted speaker phone; the output end of the UART communication module is connected with a vehicle-mounted display; and the CAN transceiving module is connected with a CAN bus on the vehicle. The vehicular active interest point searching system can search the interest points actively according to the change of state of the vehicle.

Description

The vehicle active-type interest point search system

Technical field

The utility model relates to the technology of automobile navigation, particularly relates to a kind of technology that can carry out vehicle active-type interest point (POI) search system of point of interest (POI) search according to vehicle-state automatically.

Background technology

At present, Vehicular navigation system has obtained using widely in services such as vehicle location and road inquiry.In a traditional Vehicular navigation system, when the user initiates a point of interest (POI) inquiry, Vehicular navigation system at first obtains the coordinate (as gps coordinate) of user position, the search condition Query Database of setting according to the coordinate of user position and user then, and return relevant data message.For example, the user can search for the information of all gas stations in the specified location area by Vehicular navigation system, when the user selected certain point of interest (POI), Vehicular navigation system can also be cooked up best traffic route according to the coordinate of the current position of user.

The database of conventional truck navigation system all leaves in the remote server or deposits in this locality; If database leaves in the remote server, need to dispose a network access module (NAD) so in the Vehicular navigation system and carry out communication with remote server, therefore the cost of this Vehicular navigation system is higher; If database deposits in this locality (as PND equipment Personal Navigation Device), Vehicular navigation system need dispose a jumbo memory and comes the store data storehouse, the difficulty that this has just brought upgrading and has safeguarded so.

In addition, the conventional truck navigation system all can only passive reception Client-initiated point of interest (POI) querying command, can only inquire about according to the Client-initiated order, can not automatically go out corresponding information according to the variation of vehicle-state (low, some mistake of vehicle etc.) as oil mass to user search, therefore the user is not if notice the state variation of vehicle, very likely can miss nearest point of interest (POI), thereby influence the normal use of vehicle.

The utility model content

At the defective that exists in the above-mentioned prior art, it is convenient, with low cost that technical problem to be solved in the utility model provides a kind of upgrade maintenance, can be according to the user instruction searching for point of interest, can also be according to the state variation active searching point of interest of vehicle and real-time informing user's vehicle active-type interest point search system.

In order to solve the problems of the technologies described above, a kind of vehicle active-type interest point search system provided by the utility model is characterized in that: comprise acting server, and a plurality of content servers, and be installed in vehicle interior on-vehicle Bluetooth equipment and mobile phone;

Described acting server is by each content server of Internet connection;

Be built-in with the Bluetooth of mobile phone transport module in the described mobile phone;

Described on-vehicle Bluetooth equipment comprises central processing unit, and the random asccess memory, nonvolatile storage, UART communication module, audio coding decoding module, GPS navigation module, on-vehicle Bluetooth transport module, the CAN transceiver module that connect central processing unit and moved by central processing unit control;

The audio input port of described audio coding decoding module is connected to a microphone, and its audio output port connects the vehicle-mounted loudspeaker in the vehicle;

The output of described UART communication module connects Vehicular display device;

Described GPS navigation module receives the GPS navigation information of navigation satellite through a gps antenna;

The Bluetooth of mobile phone transport module of described on-vehicle Bluetooth transport module wireless connections mobile phone;

Described CAN transceiver module connects the CAN bus on the vehicle;

Described mobile phone is by mobile phone cellular network and Internet connection acting server.

The vehicle active-type interest point search system that the utility model provides has following beneficial effect:

1) the on-vehicle Bluetooth equipment that is loaded in the vehicle passes through the interior mobile phone of bluetooth approach wireless connections car, in wireless network, create a data passage by mobile phone again, thereby make on-vehicle Bluetooth equipment can be connected to remote server and carry out remote inquiry, all can use so long as have bluetooth and WAP cellular phone with the pairing of on-vehicle Bluetooth equipment, therefore need not the configuration network access modules, its cost is lower;

2) link to each other with the CAN bus of vehicle owing to on-vehicle Bluetooth equipment, during particular vehicle status message on receiving the CAN bus, the relevant point of interest query requests of state that on-vehicle Bluetooth equipment can initiatively be connected to remote server and initiate to change with vehicle, in time notify the user by vehicle-mounted loudspeaker and Vehicular display device with Query Result then, can avoid the user to miss nearest target point of interest; When for example the low CAN message of indication oil mass was received by system, system can initiatively initiate a point of interest inquiry, near the fuel station information the search, and play Search Results by vehicle-mounted loudspeaker, by the Vehicular display device display of search results;

3) because point of interest (POI) database is arranged in remote server, so do not need very big memory device in the local device, database upgrade is safeguarded very convenient.

Description of drawings

Fig. 1 is the structural representation of the vehicle active-type interest point search system of the utility model embodiment;

Fig. 2 is the structural representation of the vehicle-mounted part in the vehicle active-type interest point search system of the utility model embodiment;

Fig. 3 is the flow chart of searching for point of interest in the vehicle active-type interest point search system of the utility model embodiment.

Embodiment

Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection range of the present utility model in.

As Fig. 1-shown in Figure 2, a kind of vehicle active-type interest point (POI) search system that the utility model embodiment is provided, it is characterized in that: comprise acting server 4, a plurality of content servers 5, and be installed in on-vehicle Bluetooth equipment (BTHF) 1 and mobile phone 2 in the vehicle 3;

Described acting server 4 connects each content server 5 by the Internet 7;

Be built-in with Bluetooth of mobile phone transport module 21 in the described mobile phone 2;

Described on-vehicle Bluetooth equipment (BTHF) 1 comprises central processing unit (CPU) 11, and the random asccess memory 12, nonvolatile storage 13, UART communication module 14, audio coding decoding module 15, GPS navigation module 16, on-vehicle Bluetooth transport module 17, the CAN transceiver module 18 that connect central processing unit (CPU) 11 and moved by central processing unit (CPU) 11 controls;

The audio input port of described audio coding decoding module 15 is connected to a microphone 151, and its audio output port connects the vehicle-mounted loudspeaker 152 in the vehicle 3;

The output of described UART communication module 14 connects Vehicular display device 141;

Described GPS navigation module 16 receives the GPS navigation information of navigation satellite 6 through a gps antenna 10;

The Bluetooth of mobile phone transport module 21 of described on-vehicle Bluetooth transport module 17 wireless connections mobile phones 2;

CAN (control area net network) bus 19 that described CAN transceiver module 18 connects on the vehicle 3;

Described mobile phone 2 connects acting server 4 by mobile phone cellular network 8 (GSM or CDMA) and the Internet 7;

Be built-in with master control module 111 in the described central processing unit (CPU) 11, be used to control the demonstration service module 112 of UART communication module, TTS (massage voice reading) module 113 that is used for the control audio coding/decoding module and sound identification module 114, be used to control the GPS navigation module GPS service module 115, be used to control the on-vehicle Bluetooth transport module bluetooth service module 116, be used to control the CAN service module 117 of CAN transceiver module; Each built-in module operation in the described master control module 111 control central processing units (CPU) 11;

Among the utility model embodiment, the model of described central processing unit (CPU) 11 is PowerPC 5200, described random asccess memory 12 is that memory capacity is the synchronous DRAM (SDRAM) of 32MB, described nonvolatile storage 13 is that memory capacity is the NOR FLASH flash memory of 64MB, the model of described audio coding decoding module 15 is TLV320AIC23B, the model of described GPS navigation module 16 is SiRF III, the model of described on-vehicle Bluetooth transport module 17 is CSR BC04, and the model of described CAN transceiver module 18 is TJA1041AT;

As shown in Figure 3, the embodiment of the invention is after vehicle ignition, and on-vehicle Bluetooth equipment (BTHF) 1 is electrifying startup and finishes initialization, mates by on-vehicle Bluetooth transport module 17 and Bluetooth of mobile phone transport module 21 then, enters ready state after coupling is finished;

The operation principle of the utility model embodiment is as follows:

1) generated query request

On-vehicle Bluetooth equipment (BTHF) 1 is by its CAN transceiver module 18 real-time CAN message that receive on vehicle CAN (control area net network) bus 19, receive the voice that microphone 151 picks up in real time by its audio coding decoding module 15, receive the GPS navigation information of navigation satellite 6 by its GPS navigation module 16 in real time;

Wherein, described CAN message (such as the low CAN message of oil mass) is sent by changing corresponding vehicle CAN (control area net network) node with vehicle-state;

Wherein, CAN transceiver module 18 receives that the CAN service module 117 that transfers to central processing unit (CPU) 11 after the CAN message handles, the sound identification module 114 that sends central processing unit (CPU) 11 after the voice command that microphone 151 is picked up is encoded by audio coding decoding module 15 to is discerned processing, GPS navigation module 16 receives that the GPS service module 115 that transfers to central processing unit (CPU) 11 after the GPS navigation information handles, and the master control module 111 of central processing unit (CPU) 11 generates the respective queries request and controls its built-in bluetooth service module 116 according to the result of each module and sends the networking request to on-vehicle Bluetooth transport module 17;

2) set up wireless data link

On-vehicle Bluetooth transport module 17 is set up wireless connections with Bluetooth of mobile phone transport module 21 after receiving the networking request, make on-vehicle Bluetooth equipment (BTHF) 1 and mobile phone 2 interconnected, at first insert the digital network of mobile phone cellular network provider after on-vehicle Bluetooth equipment (BTHF) 1 and mobile phone 2 are interconnected by the dial-up connection mode, send one then and set up the wireless data link request, this request is through mobile phone 2, mobile phone cellular network 8 (GSM or CDMA) and the Internet 7 are sent to acting server 4, and acting server 4 is promptly set up wireless data link with on-vehicle Bluetooth equipment (BTHF) 1 after receiving this request;

Wherein,, then attempt setting up wireless data link again, reach default number of retries or set up the wireless data link success until number of retries if on-vehicle Bluetooth equipment (BTHF) 1 is set up the wireless data link failure with acting server 4; If number of retries reaches default number of retries, then finish this inquiry;

Wherein, if on-vehicle Bluetooth equipment (BTHF) 1 is set up the wireless data link success with acting server 4, on-vehicle Bluetooth equipment (BTHF) 1 promptly sends logging request to acting server 4, acting server 4 carries out authentication after receiving logging request, if authentication failed is then returned the message of a login failure and is given on-vehicle Bluetooth equipment (BTHF) 1, on-vehicle Bluetooth equipment (BTHF) 1 promptly discharges the wireless data link of being set up after receiving the message of login failure, and finish this inquiry, if the query requests that the successful on-vehicle Bluetooth equipment of login (BTHF) 1 is promptly generated to acting server 4 forwarding steps 1;

3) point of interest (POI) inquiry

Acting server 4 is received after the query requests according to the query requests type of receiving to corresponding contents server 5 data queries, and Query Result is returned to on-vehicle Bluetooth equipment (BTHF) 1;

4) receive Query Result

If on-vehicle Bluetooth equipment (BTHF) 1 successfully receives Query Result, then Query Result is converted to Query Result voice signal and Query Result picture signal respectively by TTS (massage voice reading) module 113 built-in among its central processing unit (CPU) 11 and demonstration service module 112, and then the vehicle-mounted loudspeaker 152 that the Query Result voice signal sends in the vehicle is play by its audio coding decoding module 15, or by its UART communication module 14 the Query Result picture signal is sent to Vehicular display device 141 and show, or play simultaneously and show, and then the wireless data link between release and the acting server 4, this inquiry promptly comes to an end;

If on-vehicle Bluetooth equipment (BTHF) 1 do not receive Query Result, the direct wireless data link between release and the acting server 4 then, this inquiry promptly comes to an end.

Claims (1)

1. vehicle active-type interest point search system is characterized in that: comprise acting server, and a plurality of content servers, and be installed in on-vehicle Bluetooth equipment and mobile phone in the vehicle;

Described acting server is by each content server of Internet connection;

Be built-in with the Bluetooth of mobile phone transport module in the described mobile phone;

Described on-vehicle Bluetooth equipment comprises central processing unit, and the random asccess memory, nonvolatile storage, UART communication module, audio coding decoding module, GPS navigation module, on-vehicle Bluetooth transport module, the CAN transceiver module that connect central processing unit and moved by central processing unit control;

The audio input port of described audio coding decoding module is connected to a microphone, and its audio output port connects the vehicle-mounted loudspeaker in the vehicle;

The output of described UART communication module connects Vehicular display device;

Described GPS navigation module receives the GPS navigation information of navigation satellite through a gps antenna;

The Bluetooth of mobile phone transport module of described on-vehicle Bluetooth transport module wireless connections mobile phone;

Described CAN transceiver module connects the CAN bus on the vehicle;

Described mobile phone is by mobile phone cellular network and Internet connection acting server.

Images