CN1312193A

CN1312193A - Automatic broadcaster in GPS positioned vehicle

Info

Publication number: CN1312193A
Application number: CN01103738A
Authority: CN
Inventors: 赵苏铭; 李维平; 刘波; 王月秋; 宋富琪; 唐宏寰
Original assignee: BEIHAI COMMUNICATION & BROADCAST DESIGN INST TIANJIN
Current assignee: BEIHAI COMMUNICATION & BROADCAST DESIGN INST TIANJIN
Priority date: 2001-02-13
Filing date: 2001-02-13
Publication date: 2001-09-12

Abstract

The present invention relates to a GPS location auto-broadcast equipment for train, including GPS global location navigation device, chip microprocessor and memory and their information processing device, liquid crystal display output and MP3 coding and decoding device and information output device of broadcast equipment, control and instruction input device; in which the GPS can provide geographical position information, according to the geographical position information the information processing device can search out speak information to obtain index of broadcast contents, the MP3 coding-decoding device can be used for synthesizing speak signal or calling optical disk playback machine to search correspondent contents, and it utilizes signal control circuit to transfer it to braodcast equipment to make automatic broadcast. Said invention fully uses advanced GPS global location system to implement train broadcast automation.

Description

GPS positioned vehicle automatic broadcaster

The present invention relates to GPS positioned vehicle automatic broadcaster.

Existing vehicle broadcast type has following three kinds: entertainment broadcasting such as voice broadcast service, radio reception broadcasting, special topic broadcasting and music.Speech amplifier is made of following equipment:. public address, radio receiver, audifier recorder, VCD and microphone etc.Wherein, voice broadcast service is finished by speaker's mouth, used broadcast equipment is microphone, public address (power gain machine), broadcasted content is a running information, as the broadcasting of arriving at a station, late broadcasting, travelling propaganda, broadcast mode is speaker's manual control, requires ten o'clock uninterruptedly to broadcast in seven o'clock to night in the morning; The news broadcast broadcasted content is Central People's Broadcasting Station's news hookup program, used apparatus for receiving broadcasting is a radio receiver, characteristics are to fix the time, seven o'clock of morning, eight in night, broadcast mode is speaker's manual control: thematic broadcast content is that each department are introduced, travelling announcement and each series advertisements etc., used broadcast equipment is an audifier recorder, used storage medium is a tape, used broadcast mode is announcer's manual control, and characteristics are that the part broadcasted content has tangible regionalism (as: local conditions and customs in a certain area, humane natural landscape etc.).

The problem that existing vehicle loud system exists: (1) broadcasts control operation for a long time, and 7 of vehicle airtime from mornings are provided with uninterrupted broadcasting to 10 end in night.Uninterrupted broadcasting purpose: passenger's amusement, play entertainments such as various music, song, essay, enrich travelling life, it is tired out to eliminate travelling; Make things convenient for the passenger, at first notice arrive at a station, information such as late, next carries out the introduction in garage zone.Also can carry out the broadcasting of local each series advertisements in this interval.More than a large amount of broadcasted contents only depend on mouthful broadcasting of speaker, the timeliness of broadcasting, region, the quality of what and voice broadcast service of broadcasted content quantity all is controlled by announcer's quality itself, speaker's work capacity is big, needs the energy high concentration.(2) night broadcast issue: during night travel, because the speaker needs to have a rest, the passenger can not listen to the broadcasting of arriving at a station, and is only informed orally by bus attendant, travels to the passenger and brings inconvenience.(3) special topic broadcasting: thematic broadcasted content is a large amount of repeated data.Since also be to control broadcast at present by the speaker, the rough sledding that equally also exists airtime property, region influenced by human element.

The object of the present invention is to provide a kind of Novel GPS (global positioning system) positioned vehicle method and apparatus of broadcasting automatically, can overcome the deficiency of above-mentioned technology, realize full automaticity broadcasting accurately.。

GPS positioned vehicle of the present invention is the method for broadcasting automatically, comprises the steps:

(1) GPS provides the geographical location information of vehicle, signal conditioning package retrieves cooresponding existing voice data according to geographical location information, obtain the broadcasted content index,, deliver to broadcast equipment by tone frequency channel wire and broadcast automatically to sending out broadcast speech signal by the synthetic vehicle of MP3, will arrive at a station to the place ahead and announce, the automatic announcement vehicle arrives the time at certain station: (2) are when vehicle parking, according to the timetable of typing, the geography information that corresponding GPS provides, automatic announcement.Automatically broadcasting can be the ad-hoc location range information that provides according to GPS, carries out special topic broadcasting automatically, comprises introduction or each series advertisements in this place.

More particularly, the present invention retrieves cooresponding voice data by the geographic coordinates retrieving information that GPS provides, and uses speech synthesis apparatus, will arrive at a station to the place ahead and announce.As working as vehicle (train) temporary term stop, the geographical location information that control part provides according to GPS is judged and is not arrived at a station, and announcements such as " each compartment bus attendant please be stuck to post " " is asked the passenger to note, is the temporary term stop state at present " in broadcasting automatically immediately.(3) according to the timetable of typing, the geography information that corresponding GPS provides, whether the automatic announcement vehicle arrives the time at certain station, the late and late time.

The present invention mainly comprises GPS global location homing advice, signal conditioning package (micro controller system and expansion equipment thereof), output information device, control and instruction inputting device.

(1) GPS global location homing advice comprises: antenna, GPS global location homing advice receiver.

(2) signal conditioning package comprises: micro controller system, expansion external memory, expansion IO interface and software program memory device.

(3) the output information device comprises: liquid crystal display, indicator lamp, MP3 encoding/decoding device, broadcaster.

(4) control and instruction inputting device comprise: keyboard, button and source switch.

The present invention has outstanding feature.

The manual control pattern that changes in the past according to embodiments of the invention is the automatic broadcast mode in location.The GPS global positioning system is set in novel broadcast equipment, and vehicle location system is with the speed retrieval geographical location information once of per second at least.According to longitude, the latitude that satellite positioning obtains, retrieve the broadcasted content of each position.For example: vehicle is during through somewhere Yangtze Bridge point, and the broadcast material content that the information retrieval that obtains according to global position system goes out herein the Yangtze Bridge is broadcasted.

According to embodiments of the invention special topic broadcasting automatically, according to the specific location information that GPS provides, the introduction in broadcasting this place, or each series advertisements.For example: vehicle is by way of Nanjing, and when vehicle arrived the Nanjing Yangtze River Bridge head, the GPS position fixing system offered control system and arrives information, and control system is searched the broadcast material about the Nanjing bridge, and the control loud system broadcasts.Vehicle ' is in the area, Nanjing, and the data in broadcast related Nanjing finishes broadcasting automatically when surpassing this scope.The geography information that is obtained by GPS of choosing of scope is finished.

The present invention makes full use of advanced GPS global positioning system, controls by location information, embodies automatic function, reduces or the removal behavior adjustment management, realizes the vehicle automation of broadcast continuity.

The embodiment that following reference is illustrated in the drawings will describe the present invention, wherein:

Fig. 1 is a self-orientation broadcasting diagram of circuit; Fig. 2 is automatic thematic broadcasting diagram of circuit; Fig. 3 is GPS fixing aid figure; Fig. 4 is a GPS fixing aid workflow diagram; Fig. 5 is a MCU control part scheme circuit; Fig. 6 is a sound materials typing diagram of circuit; Fig. 7 is the subject index diagram of block of broadcasted content; Fig. 8 is the Control Software diagram of circuit; Fig. 9 is a GPS positioned vehicle automatic broadcaster system construction diagram of block.

As shown in the figure, the location is finished by electronic chart, microcontroller, speech synthesis system, broadcast equipment etc. on the basis of broadcasting automatically jointly.

With reference to Fig. 1: the retrieving information that (1) provides by GPS retrieves existing voice data, carries out phonetic synthesis, will arrive at a station to the place ahead and announce.(2) when the vehicle temporary term stop, the geographical location information that control part provides according to GPS, for example announcements such as " asking the passenger to note, are the temporary term stop state at present " of broadcasting automatically.(3) according to the timetable of typing, the geography information that corresponding GPS provides, whether the automatic announcement vehicle arrives the time at certain station, the late and late time.

With reference to Fig. 2: vehicle carries out special topic broadcasting automatically.

With reference to Fig. 3, the GPS GPS: adopt JJTCH to make GPS950 mainboard+GPS901 antenna, GPS mainboard GPS950 need with 5.0+/-0.25VDC and gps antenna GPS901,3.3VDC are provided;

Among Fig. 4, it alignment mainboard transmits data, mainboard is powered to antenna, the GPS mainboard is to 8031 data-messages of micro controller system: longitude, latitude, height above sea level, highly, speed, time etc., micro controller system 8031 says the word, connects machine, stops, chooses serial mode etc. to the GPS mainboard, 8031 data transmit-receives adopt serial mode, baud rate 4800,8 bit data, 1 stops

Among Fig. 5, the MCU control part: adopting the 80C31 microprocessor is core, by the 74LS373 latch, extends out 8KEPROM2764 and constitutes the complete microcomputer that can store the 8K program.

Speech synthesis apparatus: finish by the MP3 coding decoder; Data bank: constitute by FLASH.Form database structure.Passage period, location information index broadcast data are searched sound bank, are finished the combination of broadcasted content by MP3.

Among Fig. 6, sound materials typing: comprise computing machine, speech processing software, CD writer, CD dish.

With reference to Fig. 7, the electronic chart typing, the timetable typing: the position coordinate that provides according to GPS by the speaker, by the key that selects on the device panel, somewhere during typing, the subject index of broadcasted content.

With reference to Fig. 8: after (1) start powers on, micro controller system 80C31 initialization self check, liquid crystal display display status information.(2) GPS Position Fixing Navigation System cold start-up, the liquid crystal display display status information.The back, location shows current, information such as longitude, latitude, time.(3) the LCDs menu is selected:

A. edit broadcasted content

B. broadcasting automatically

C. broadcasting temporarily

If this device in this line applications, needs the broadcasted content of each broadcast point of initialization for first.The speaker selects a to edit broadcasted content by button, enters Fig. 7.Choose broadcasting place (longitude, latitude) airtime and broadcasted content index, by determining key.Repeat this action, on the way after the broadcasted content index of each broadcast point edits, by storage key.The speaker returns previous menu, selects broadcasting item automatically, finishes whole initial work.

With reference to Fig. 9, micro controller system and expanding unit thereof comprise that micro controller system, external memory storage, software memory are to constitute with broadcast material memory device and IO interface.External memory storage 62256 is connected with 80C31 via input and output interface 8255 with software memory 27256 and broadcast material memory device FLASH.The GPS registration device is handled through internal algorithm after receiving satellite-signal, with serial mode and single chip communication, provides position information such as longitude, latitude by RS232 interface TX, RX end.Micro controller system is searched from there being the data in the FLASH according to location information, obtains the broadcasted content index.Output indicator lamp display system state, liquid crystal display display menu and show various status informations, the MP3 synthetic speech uses for audio broadcasting equipment.Keyboard is connected with micro controller system 80C31 with interface by line.

During vehicle operating, the GPS position fixing system is in running order always.Send location information by RS232 Serial Port Line TX, RX end to micro controller system.Micro controller system is read this information each second, searches whether store coordinate herein among the FLASH, broadcasts determining whether.After arriving broadcast point, broadcast material is delivered to broadcast equipment by the synthetic voice signal of prerecording of MP3 by tone frequency channel wire, and all passengers are broadcasted.

Claims

1, the method for the automatic broadcasting of a kind of GPS positioned vehicle is characterized in that it comprises the steps:

(1) GPS provides the geographical location information of vehicle, signal conditioning package retrieves cooresponding existing voice data according to geographical location information, obtain the broadcasted content index, by MP3 coding and decoding device synthetic speech signal or call cd player and retrieve corresponding content, delivering to broadcast equipment by signal control circuit broadcasts automatically, to arrive at a station to the place ahead and to announce, the automatic announcement vehicle arrives the time at certain station;

(2) when vehicle parking, according to the timetable of typing, the geography information that corresponding GPS provides, automatic announcement is arrived at a station or temporary term stop information;

(3) geographical location information that receives according to GPS, automatically retrieving information calls CD-ROM Title and carries out propaganda on the way broadcasting.

2, the method for the automatic broadcasting of GPS positioned vehicle according to claim 1, it is characterized in that the specific geographical position range information that described automatic broadcasting can provide according to GPS, automatically retrieval is broadcasted, and comprises that vehicle arrives introduction or each series advertisements of sending out this place.

3, the method for the automatic broadcasting of GPS positioned vehicle according to claim 1 is characterized in that described GPS positioned vehicle is with the synthetic broadcast message content of MP3 coding and decoding device.

4, a kind of GPS positioned vehicle automatic broadcaster is characterized in that mainly comprising GPS global location homing advice, signal conditioning package, output information device, control and instruction inputting device; Described GPS global location homing advice comprises antenna, GPS global location homing advice mainboard; Described signal conditioning package comprises micro controller system, expansion external memory, expansion IO interface and software program memory device; Described output information device comprises: liquid crystal display, indicator lamp, MP3 coding and decoding device, CD playback set, broadcaster: described control and instruction inputting device comprise: keyboard, button and source switch;

External memory storage 62256 is connected with 80C31 via input and output interface 8255 with software memory 27256 and broadcast material memory device FLASH; The GPS registration device is handled through internal algorithm after receiving satellite-signal, with serial mode and single chip communication, provides position information such as longitude, latitude by RS232 interface TX, RX end; Keyboard is connected with micro controller system 80C31 with interface by line.