CN101178836A - Vehicle state monitoring method and vehicle mounted multimedia informatin terminal thereof - Google Patents
Vehicle state monitoring method and vehicle mounted multimedia informatin terminal thereof Download PDFInfo
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Abstract
The invention relates to a vehicle monitoring method and a device thereof, aiming at providing a vehicle status monitoring method and an on-vehicle multimedia information terminal used for the method. The method comprises a main control unit sending the start signal to the video and audio input unit, a video and audio input unit and a GPS positioning unit collecting information, a wireless transmitting unit sending information and other steps. The terminal comprises an alarming inducting unit and the main control unit which are connected with each other. Besides, the terminal also comprises an identifying unit, a wireless transmitting unit, a GPS positioning unit, a video and audio input unit, a video and audio processing unit, a storing unit and a video and audio outputting unit, all of which are respectively connected with the main control unit. The invention realizes visual and rich alarming information, multiple alarming measures and multi media resources integration, and can be widely used in vehicle safety, on-vehicle communication, and on-vehicle multimedia play of the individual user and the vehicle monitoring of taxi companies and bus companies.
Description
Technical field
The present invention relates to a kind of method for supervising and device thereof that is used for vehicle, more particularly, the present invention relates to a kind of method of vehicle state monitoring and be used for the vehicle mounted multimedia informatin terminal of this method for supervising.
Background technology
In the prior art, the warning system of vehicle is the simple alarm bell prompting of passing through basically or uses SMS notification, if the car owner is not or not the vehicle scene then can't grasp vehicle-state all sidedly when alarm takes place, one of purpose of the present invention is the instant multimedia messages of vehicle when providing warning for the car owner, comprise audio frequency, video, location coordinate information, above information directly sends on car owner's the mobile phone or other receiving ends by multimedia short message or the live mode of audio-video wireless, makes the understanding vehicle-state that the car owner can be more detailed.When vehicle took place to report to the police like this, the car owner not only can watch video situation in the car in real time, heard sound in the car, can also understand the present present position of vehicle at any time, also made things convenient for the law enfrocement official to recover immediately.
In addition, the driver often will dispose multiple electronic product on a car in the past, had not only wasted money and valuable interior space, had also increased the complicacy of operation; And each electronic product all can only independent utility, and the user can't be related, integrate multiple information and resource, and for example the car owner wants can watch automatically the audiovisual information of vehicle when vehicle leaves certain geographic area, uses existing device just can't realize.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of method of vehicle state monitoring is provided, further object of the present invention provides a kind of vehicle mounted multimedia informatin terminal that is used for this method for supervising.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The invention provides a kind of method for supervising of vehicle-state, comprising:
(1) when the warning sensing unit produced alert event or wireless transmission unit and receives the periodicity clock instruction triggers of note or vod by telephone request or main control unit, main control unit sent enabling signal to looking the audio frequency input block;
(2) look the audio frequency input block and gather in the car behind the sound and image, video/audio is carried out encoding compression by looking audio treatment unit; The GPS positioning unit is the current coordinate information of registration of vehicle simultaneously;
(3) become multimedia short message to be sent to mobile phone the gps coordinate information package of audiovisual information and current vehicle by wireless transmission unit, or audiovisual information in the car is sent on the receiving equipment of mobile phone, computer or monitoring central server in real time in the mode of looking the audio wireless network direct broadcasting.
Among the present invention, the described warning sensing unit of step (1) produces alert event and is meant:
The external alert incident: sense car door when the external alert interface and open unusually, vehicle is subjected to bump, overspeed of vehicle or other vehicle alarming systems produce when reporting to the police, the warning sensing unit then produces the external alert incident; Or
GPS displacement alert event: the GPS remote alarm interface reads vehicle Current GPS coordinate in real time from the GPS positioning unit, in case detect the position change of vehicle, the warning sensing unit then produces GPS displacement alert event; Or
GPS zone overflow alarm incident: set in advance a vehicle safety zone, in case the GPS remote alarm interface is left this safety zone from the current vehicle coordinate that the GPS positioning unit obtains, the warning sensing unit then produces GPS zone overflow alarm incident; Or
Manual alert event: when danger button was pressed, manually remote alarm interface triggered the warning sensing unit and produces manual alert event.
Among the present invention, described step (2) is looked audio treatment unit video/audio is carried out being kept at storage unit earlier after the encoding compression, if main control unit is not received the fingerprint recognition of authentication unit transmission or the password authentification instruction of withdrawing a garrison in the given time, or the password authentification of the wireless transmission unit transmission instruction of withdrawing a garrison, then continue the operation of execution in step (3).
The present invention also provides a kind of vehicle mounted multimedia informatin terminal that is used for described vehicle state monitoring method, comprise interconnective warning sensing unit and main control unit, also comprise the authentication unit, wireless transmission unit, the GPS positioning unit that are connected with main control unit respectively, look the audio frequency input block, look audio treatment unit, storage unit and look audio output unit; Look audio treatment unit respectively with look audio frequency input block, storage unit, look audio output unit and be connected; Looking audio treatment unit, storage unit is connected with wireless transmission unit respectively; The GPS positioning unit is connected with the warning sensing unit; Described:
The warning sensing unit comprises external alert interface, GPS remote alarm interface and manual remote alarm interface, can produce alert event behind the signal that receives the report for police service;
Main control unit comprises processor chips and built-in Control Software, is responsible for total scheduling and management;
The authentication unit is used for the authentication of equipment, comprises two kinds of patterns of fingerprint recognition and password authentification, preserves user's finger print information and password;
Wireless transmission unit is used for becoming multimedia short message to be sent to mobile phone the gps coordinate information package of audiovisual information and current vehicle, or audiovisual information in the car is sent on the receiving equipment of mobile phone, computer or monitoring central server in real time in the mode of looking the audio wireless network direct broadcasting, perhaps be used for the car phone signal and transmit.
The GPS positioning unit is used to obtain the current coordinate information accurately of vehicle;
Look the audio frequency input block and be used for typing car interior video and audio-frequency information;
Look audio treatment unit be used for will look the looking the audio frequency simulation data compression coding and the audio file of looking of storage unit input decompressed, decode of audio unit input;
Storage unit is used to preserve the video/audio behind multimedia file and the compressed encoding;
Look audio output unit, comprise a liquid crystal indicator, be used for the system operation interface and look the demonstration of voice playing.
As a kind of improvement of the present invention, also comprise a navigation elements that links to each other with main control unit, be used to point out the road information of car owner's vehicle position, electronic chart, navigation information are shown in the liquid crystal indicator of looking audio output unit.
As a kind of improvement of the present invention, describedly look the CVBS video input terminal that the audio frequency input block comprises autozoom camera, microphone and is used for external camera.
As a kind of improvement of the present invention, the described audio output unit of looking also comprises loudspeaker and audio output; Described liquid crystal indicator is a touch LCD screen; Audio output is used for providing audio frequency output to vehicle self sound system.
As a kind of improvement of the present invention, the described external interface that links to each other with main control unit that also comprises, external interface comprises USB OTG interface and blue tooth interface, is used for external USB flash disk and bluetooth earphone, PDA or computer equipment.
The invention has the beneficial effects as follows:
The invention provides a kind of multimedia function of enriching that possesses, and can externally carry out the automobile electronics of multimedia transmission with wireless mode.One aspect of the present invention can be monitored the safety of automobile, when automobile takes place to report to the police owing to abnormal conditions, the present invention by the live mode of multimedia short message or audio-video wireless directly with audio frequency and video in the car, information such as position coordinates send on car owner's the mobile phone or other receiving ends, even the car owner can not watch video situation in the car by receiving terminals such as mobile phones in real time yet near vehicle, hear sound in the car, can also understand the present present position of vehicle at any time, also make things convenient for simultaneously instant the recovering of law enfrocement official, when the car owner is in car, can also trigger warning by the manual triggers danger button when running into robber or traffic accident on the other hand.The present invention can also use as car phone, auto navigation, multimedia player in addition.The present invention not only can independently use as individual car-mounted terminal, also can a plurality of terminals form a supervisory system use.
Compared with prior art the present invention has realized:
Abundant warning message directly perceived---compare with original alarm bell prompting or use SMS notification, the present invention makes the car owner watch image real-time in the car, sound by mobile phone or computer, can also know the coordinate that vehicle is current, for the car owner still is that the law enfrocement official provides more perfect warning message.
Multiple warning means---the present invention possesses three kinds of type of alarms, both can sense vehicle the warning of existing warning system, for example car door opening, collision etc. also can be overflowed two kinds of novel warnings by the mobile or zone of GPS unit sense vehicle, and be supported user's manual warning in emergency circumstances.
The integrating multimedia resource---compare with the automotive electronics that original application is single, the present invention has integrated application such as vehicle safety, car phone, GPS navigation, multimedia on a terminal, this integration is not that original these should be used as simple quantitative stack, thereby but realized the shared use that has reduced resource of maximized hardware-software on the one hand, on the other hand by expanding the association between these application, realize new application, increased the multimedia impression of comprehensive solid for the car owner.
The present invention can be widely used in the vehicle monitoring of application such as personal user's vehicle safety, vehicle mounted communication, vehicle mounted guidance, vehicle mounted multimedia broadcast or taxi company, public transport company.
Description of drawings
Fig. 1 is the structure principle chart of vehicle mounted multimedia informatin terminal in the embodiment of the invention;
Fig. 2 is the workflow diagram under the early warning pattern in the embodiment of the invention;
Fig. 3 is the workflow diagram under the cruise mode in the embodiment of the invention;
Fig. 4 is the mode chart that a plurality of terminals are formed supervisory system.
Embodiment
Do further detailed description below in conjunction with accompanying drawing for the present invention.
The Multifunction vehicle mounted multimedia informatin terminal, be a kind of, the automobile terminal device of abundant in content multimedia messages such as vehicle safety, multimedia recreation, geography information, path navigation is provided for the car owner based on technology such as GSM/GPRS/CDMA/3G wireless telecommunications, GPS location, electronic chart, video encoding, fingerprint recognition.Terminal comprises early warning pattern and two kinds of mode of operations of cruise mode.The early warning pattern is mainly used in provides the security monitoring to vehicle of unmanned state following time, and the car owner starts by terminal is deployed troops on garrison duty and withdrawn a garrison and closes the early warning pattern; Cruise mode is mainly used in when vehicle and is in when people's state is arranged, and functions such as navigation, amusement, communication, emergency alarm are provided.
As shown in Figure 1, vehicle mounted multimedia informatin terminal comprises interconnective warning sensing unit 1 and main control unit 2, also comprises the authentication unit 3, wireless transmission unit 4, the GPS positioning unit 5 that are connected with main control unit 2 respectively, looks audio frequency input block 6, looks audio treatment unit 7, storage unit 8, looks audio output unit 9 and external interface 10; Look audio treatment unit 7 respectively with look audio frequency input block 6, storage unit 8, look audio output unit 9 and be connected; Looking audio treatment unit 7, storage unit 8 is connected with wireless transmission unit 4 respectively; GPS positioning unit 5 is connected with warning sensing unit 1;
Look audio frequency input block 6 and be used for early warning pattern following time, in order to video in the typing car and audio-frequency information, the microphone in cruise mode audio frequency of following time input block plays the conversation effect; Look the CVBS video input terminal that the audio frequency input block comprises autozoom camera, microphone and is used for external camera.In the present embodiment, camera is selected CMOS 2,000,000 pixel automatic focus cameras for use.
Look audio treatment unit 7 be used for will look the looking the audio frequency simulation data compression coding and the audio file of looking of storage unit input decompressed, decode of audio unit input; Look audio treatment unit and play the effect of looking the audio frequency simulation data compression coding that to look the audio unit input, play the effect that audio file decompresses, decodes of looking the storage unit input in cruise mode following time in early warning pattern following time; In the present embodiment, video encoding adopts the software compress mode based on MPEG4, H264 coding, because the primary processor PXA270 in the present embodiment is the dominant frequency of 400MHz, chip supports IPP series audio frequency and video to handle function library, therefore MPEG4, H.264 the coding and decoding video algorithm can be realized based on this, so that signal Processing efficient to be provided.
Look audio output unit 9 and comprise a liquid crystal indicator; Look the demonstration that audio output unit is used for the total system operation interface, look voice playing, show electronic chart, navigation information etc.; Look audio output unit and also comprise loudspeaker and audio output; Described liquid crystal indicator is a touch LCD screen; Audio output is used for providing audio frequency output to vehicle self sound system.In the present embodiment, liquid crystal display can be selected 16: 9 4.3 cun touch-screens of Samsung, resolution 480 * 272 for use.
Have a navigation elements 11 respectively with main control unit 2 with look audio output unit 9 and link to each other, navigation elements 11 is used under the cruise mode, form with electronic chart after embedded geographical information systems in the navigation elements 11 (GIS) is handled the coordinate of vehicle shows on LCD screen, can point out the road information of car owner's vehicle position, comprise the place place name, the road name, surrounding building etc., and can generate best traffic route automatically, the navigation hint that the voice system in the navigation elements 11 provides true man to pronounce for the car owner according to starting point and the destination that the car owner is provided with; In the present embodiment, navigational system adopts Kai Lide Careland07 south to hope customization version navigation software, possesses true man's sound prompt function.
The method for supervising of the vehicle-state among the present invention is realized by following steps:
(1) when warning sensing unit 1 produced alert event or wireless transmission unit 4 and receives the periodicity clock instruction triggers of note or vod by telephone request or main control unit, main control unit 2 sent enabling signals to looking audio frequency input block 6;
(2) look audio frequency input block 6 and gather in the cars behind the sound and image, carry out encoding compression by looking 7 pairs of video/audios of audio treatment unit; The GPS positioning unit is the current coordinate information of registration of vehicle simultaneously;
(3) become multimedia short message to be sent to mobile phone the gps coordinate information package of audiovisual information and current vehicle by wireless transmission unit 4, or audiovisual information in the car is sent on the receiving equipment of mobile phone, computer or monitoring central server in real time in the mode of looking the audio wireless network direct broadcasting.
Among the present invention, the described warning sensing unit 1 of step (1) produces alert event and is meant:
The external alert incident: sense car door when the external alert interface and open unusually, vehicle is subjected to bump, overspeed of vehicle or other vehicle alarming systems produce when reporting to the police, 1 of warning sensing unit produces the external alert incident; Or
GPS displacement alert event: the GPS remote alarm interface reads vehicle Current GPS coordinate in real time from GPS positioning unit 5, in case detect the position change of vehicle, the warning sensing unit then produces GPS displacement alert event; Or
GPS zone overflow alarm incident: set in advance a vehicle safety zone, in case the GPS remote alarm interface is left this safety zone from the current vehicle coordinate that GPS positioning unit 5 obtains, 1 of warning sensing unit produces GPS zone overflow alarm incident; Or
Manual alert event: when danger button was pressed, manually remote alarm interface triggered warning sensing unit 1 and produces manual alert event.
Among the present invention, described step (2) is looked 7 pairs of video/audios of audio treatment unit and is carried out being kept at storage unit 8 earlier after the encoding compression, if main control unit 2 is not received the instruction of withdrawing a garrison of fingerprint recognition that authentication unit 3 transmits in the given time, or wireless transmission unit 4 password authentification of the transmitting instruction of withdrawing a garrison, then continue the operation of execution in step (3).
Concrete application mode of the present invention is as follows:
Operation of Multifunction vehicle mounted multimedia informatin terminal all component and task scheduling all are in charge of by main control unit 2.Authentication unit 3 adopts fingerprint recognition system combining cipher verification system, can preserve a plurality of users' finger print information.Terminal can be by button or touch LCD screen operation.Terminal has early warning pattern and two kinds of mode of operations of cruise mode.When leaving vehicle, the car owner can select terminal with the work of early warning pattern, this moment, terminal mainly provided the safety protection function of vehicle, if the car owner is driving to select cruise mode work, this moment, terminal provided multimedia recreation, GPS navigation function, car phone, the manual warning function of vehicle.The user start, need be when closing the early warning pattern by authentication.
When terminal was worked with the early warning pattern, the main control unit 2 of terminal, warning sensing unit 1, GPS positioning unit 5, wireless transmission unit 4 and storage unit 8 started and other unit are in the power saving dormant state.The benefit of doing like this is the maximized power consumption that reduced, and makes terminal can reduce consumption to storage battery under the vehicle flameout state.Warning sensing unit 1 can detect the vehicle safe condition in real time, the external alert interface of warning sensing unit 1, the GPS remote alarm interface, manually remote alarm interface can produce the external alert incident, the GPS alert event, manual alert event three class alert events, starting terminal is looked audio frequency input block 6 and is begun to gather sound and image in the car in case warning sensing unit 1 has alert event to take place, the audio frequency raw data of looking that to import then carries out temporarily being kept at storage unit 8 after the encoding compression through looking audio treatment unit 7, the user can cancel warning by fingerprint recognition or password identification in Preset Time, avoiding is the warning that causes because of carelessness owing to car owner oneself, if the instruction of not withdrawing a garrison in Preset Time, then terminal will be stored in the audiovisual information of storage unit 8 and Current GPS coordinate information by wireless transmission unit 4 and be packaged into multimedia short message and be sent to car owner's mobile phone or in real time audiovisual information in the car be sent to car owner's mobile phone in the mode of looking the audio wireless network direct broadcasting, on the receiving equipments such as computer; Except that reporting to the police, the early warning pattern is also supported program request and cycle two types information indicating, be that the car owner can initiatively send note or vod by telephone request to terminal, perhaps every a time cycle, terminal also can start looks audio frequency input block 6 and gathers sound and image in the cars and write down coordinate information in the GPS positioning unit 5 simultaneously, at last these information package is become multimedia short message to be sent to car owner's mobile phone or in real time audiovisual information in the car is sent on the receiving equipments such as car owner's mobile phone, computer in the mode of looking the audio wireless network direct broadcasting.Terminal can preestablish maximum three multimedia warning recipients, when report to the police or the cycle when taking place terminal can send an a plurality of user that set simultaneously, for the situation of program request, terminal only sends multimedia messages to program request person.
Look audio frequency input block 6 and comprise built-in 2,000,000 pixel autozoom cameras and a CVBS video input terminal, be used for external camera, terminal can be supported the input of two-path video simultaneously.The user can be with built-in camera in car, and an external as required camera outside car can interior, the outer situation of car of while car when reporting to the police like this.
When the Multifunction vehicle mounted multimedia informatin terminal was worked with cruise mode, terminal activated navigation elements 11, looks audio output unit 9, and this moment, the wireless transmission unit 4 of terminal was in the telephony feature pattern, for the car owner provides the car phone service.GPS positioning unit 5 is used for determining the coordinate position of vehicle, navigation elements 11 is handled down the road information that can generate car owner's vehicle position by the embedded electronic map to coordinate, comprise place place name, road name, surrounding building etc., and can generate best traffic route automatically, the navigation hint that the voice system in the navigation elements 11 provides true man to pronounce for the car owner according to starting point and the destination that the car owner is provided with.The looking audio treatment unit 7, storage unit 8, look audio output unit 9 and under cruise mode, be used for multimedia file and play use of terminal, the car owner can select any MP3, MP4, the multimedia files such as VCD, DVD on the terminal storing unit 8 to play, selected file is play on LCDs and loudspeaker or vehicle sound equipment by looking audio output unit 9 then by after looking audio treatment unit 7 and decoding.Warning sensing unit 1 is an inductive and manual alert event under cruise mode, in case this moment, danger button was pressed, the terminal activation is looked audio frequency input block 6 and is begun to gather sound and image in the car, then video/audio is carried out encoding compression through looking audio treatment unit 7, audiovisual information after will compressing by wireless transmission unit 4 and Current GPS coordinate information are packaged into multimedia short message and are sent to car owner's mobile phone or in real time audiovisual information in the car are sent on the receiving equipments such as car owner's mobile phone, computer in the mode of looking the audio wireless network direct broadcasting.
The Multifunction vehicle mounted multimedia informatin terminal both can independently use as individual car-mounted terminal, also can a plurality of terminals form a big supervisory system use, can be used for taxi company, public transport company etc.Supervisory system is made up of Surveillance center and a plurality of terminal, Surveillance center comprises a central server at least also can be according to the system scale dilatation, the wireless transmission unit 4 of terminal can send the information such as gps coordinate, sound, image of vehicle by wireless network to Surveillance center, Surveillance center stores vehicle data of receiving and the real time status that shows each vehicle; Operation platform also can send information such as driving instruction, best route, condition of road surface by wireless network to each terminal.
Fig. 2 is the workflow diagram of Multifunction vehicle mounted multimedia informatin terminal under the early warning pattern.As shown in the figure, the main control unit 2 of terminal, warning sensing unit 1, GPS positioning unit 5, wireless transmission unit 4 and storage unit 8 start and other unit are in the power saving dormant state.Warning sensing unit 1 can detect the vehicle safe condition in real time, and the external alert interface of warning sensing unit 1, GPS remote alarm interface, manually remote alarm interface can produce that external alert, GPS are reported to the police, the three class alert events of manually reporting to the police.The one, to sense car door when the external alert interface and open unusually, vehicle is subjected to bump, hypervelocity or other vehicle alarming systems produce when reporting to the police, 1 of warning sensing unit produces alert event; The 2nd, regularly read vehicle Current GPS coordinate by the GPS remote alarm interface from GPS positioning unit 5, in case finding the position of vehicle changes, 1 of warning sensing unit produces alert event or can set in advance a vehicle safety zone by the car owner, in case the GPS remote alarm interface is left this safety zone from the current vehicle coordinate that GPS positioning unit 5 obtains, 1 of warning sensing unit produces alert event, the setting of safety zone can be imported two pairs of gps coordinates by the car owner, represent the upper left corner and the lower right corner of rectangle effective coverage respectively, also can on electronic chart, confine by the user; The 3rd, there is the user to press danger button and triggers manual alert event.Audio frequency input block 6 is looked in main control unit 2 startups when alert event takes place, begin to gather video/audio signal, the video/audio of input carries out encoding compression and temporarily is kept at storage unit 8 in looking audio treatment unit 7, the user can cancel warning by fingerprint recognition or password identification in Preset Time, avoiding is the warning that causes because of carelessness owing to car owner oneself, if the instruction of not withdrawing a garrison in Preset Time, audiovisual information when then terminal is with the warning generation of preserving in the storage unit 8 and Current GPS coordinate information are packaged into multimedia short message and notify the car owner or send current audiovisual information and notify the car owner to look the live mode of audio wireless.Multimedia short message is made based on " WAP-209-MMSEncapsulation " standard, the text that comprises in the multimedia short message, picture, the layout of looking audio frequency and order adopt " lantern slide " pattern to be specified by the SMIL language, picture adopts JPEG, GIF form, audio frequency adopts AMR, MP3 standard, video adopts the 3GP standard, and the multimedia short message that completes adopts WAP, ICP/IP protocol directly to send on car owner's mobile phone by wireless networks such as GPRS/CDMA/3G by wireless transmission unit; Look audio wireless is live will be looked on the receiving equipments such as mobile phone that video/audio after audio treatment unit 7 encoding compression is sent to the car owner in real time, computer by TCP or UDP mode based on the GSM/GPRS/CDMA/3G network by wireless transmission unit 4, as long as receiving equipments such as car owner's mobile phone, computer are connected in Internet and go up and pre-install the audio-video signal that the audio frequency and video PKUNZIP can watch in real time that promptly vehicle is interior at this moment, audio frequency adopts AMR, MP3 standard, and video adopts the 3GP standard.In addition, take place even without reporting to the police, the car owner also can carry out program request to the Multifunction vehicle mounted multimedia informatin terminal by the mode of note or phone, terminal receives whether can check the SMS/phone number after car owner's note or the vod by telephone request is car owner's number, number correctly then can carry out equally video frequently compressed encoding carry out the transmission of multi-media SMS breath then or look the wireless network of audio frequency live.
Fig. 3 is the workflow diagram of Multifunction vehicle mounted multimedia informatin terminal under cruise mode.As shown in the figure, when the Multifunction vehicle mounted multimedia informatin terminal is worked with cruise mode, mainly provide four kinds of services: car phone, GPS navigation, multimedia, manually warning.This moment, the wireless transmission unit of terminal was in the telephony feature pattern, for the car owner provides the car phone service.GPS positioning unit 5 is used for determining vehicle accurate coordinate position, form with electronic chart after embedded geographical information systems in the navigation elements 11 (GIS) is handled the coordinate of vehicle shows on LCD screen, can point out the road information of car owner's vehicle position, comprise place place name, road name, surrounding building etc., and can generate best traffic route automatically, the navigation hint that the voice system in the navigation elements 11 is used to the car owner to provide true man to pronounce according to starting point and the destination that the car owner is provided with.The looking audio treatment unit 7, storage unit 8, look audio output unit 9 and under cruise mode, be used for multimedia file and play use of terminal, the car owner can select any MP3, MP4, the multimedia files such as VCD, DVD on 1G SD/MMC/TF card in the terminal storing unit 8 or the circumscribed USB storage equipment to play, selected file is play on the sound equipment in LCDs and loudspeaker or car by looking audio output unit 9 then by after looking audio treatment unit 7 and decoding.Warning sensing unit 1 is an inductive and manual alert event under cruise mode, in case this moment, danger button was pressed, the terminal activation is looked audio frequency input block 6 and is begun to gather sound and image in the car, then video/audio is carried out encoding compression through looking audio treatment unit 7, audiovisual information after will compressing by wireless transmission unit 4 and Current GPS coordinate information are packaged into multimedia short message and are sent to car owner's mobile phone or in real time audiovisual information in the car are sent on the receiving equipments such as car owner's mobile phone, computer in the mode of looking the audio wireless network direct broadcasting.
Fig. 4 is the mode chart that a plurality of terminals are formed supervisory system.The Multifunction vehicle mounted multimedia informatin terminal both can independently use as personal terminal, need not operation platform this moment, also can form a supervisory system use by a plurality of Multifunction vehicle mounted multimedia informatin terminals.Supervisory system is made up of Surveillance center and a plurality of terminal, Surveillance center comprises a central server at least also can be according to the system scale dilatation, the wireless transmission unit 4 of terminal can send the information such as gps coordinate, sound, image of vehicle by wireless network to Surveillance center, Surveillance center stores vehicle data of receiving and the real time status that shows each vehicle; Operation platform also can send information such as driving instruction, best route, Real-time Road situation by wireless network to each terminal.The real-time road condition information service here is meant: when the terminal user submits to Surveillance center to need this service, current location information (longitude, latitude) and traffic direction that the server system platform can send over by wireless network according to car-mounted terminal automatically, search is all real-time road condition informations in the specific region on the current driving route and around this position, have accident, which place that traffic control etc. is arranged such as which place's traffic congestion, which place.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above examples of implementation, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should think that guarantor of the present invention all should think protection scope of the present invention.
Claims (8)
1. the method for supervising of a vehicle-state comprises:
(1) when the warning sensing unit produced alert event or wireless transmission unit and receives the periodicity clock instruction triggers of note or vod by telephone request or main control unit, main control unit sent enabling signal to looking the audio frequency input block;
(2) look the audio frequency input block and gather in the car behind the sound and image, video/audio is carried out encoding compression by looking audio treatment unit; The GPS positioning unit is the current coordinate information of registration of vehicle simultaneously;
(3) become multimedia short message to be sent to mobile phone the gps coordinate information package of audiovisual information and current vehicle by wireless transmission unit, or audiovisual information in the car is sent on the receiving equipment of mobile phone, computer or monitoring central server in real time in the mode of looking the audio wireless network direct broadcasting.
2. the method for supervising of vehicle-state according to claim 1 is characterized in that, the described warning sensing unit of step (1) produces alert event and is meant:
The external alert incident: sense car door when the external alert interface and open unusually, vehicle is subjected to bump, overspeed of vehicle or other vehicle alarming systems produce when reporting to the police, the warning sensing unit then produces the external alert incident; Or
GPS displacement alert event: the GPS remote alarm interface reads vehicle Current GPS coordinate in real time from the GPS positioning unit, in case detect the position change of vehicle, the warning sensing unit then produces GPS displacement alert event; Or
GPS zone overflow alarm incident: set in advance a vehicle safety zone, in case the GPS remote alarm interface is left this safety zone from the current vehicle coordinate that the GPS positioning unit obtains, the warning sensing unit then produces GPS zone overflow alarm incident; Or
Manual alert event: when danger button was pressed, manually remote alarm interface triggered the warning sensing unit and produces manual alert event.
3. the method for supervising of vehicle-state according to claim 1, it is characterized in that, described step (2) is looked audio treatment unit video/audio is carried out being kept at storage unit earlier after the encoding compression, if main control unit is not received the fingerprint recognition of authentication unit transmission or the password authentification instruction of withdrawing a garrison in the given time, or the password authentification of the wireless transmission unit transmission instruction of withdrawing a garrison, then continue the operation of execution in step (3).
4. vehicle mounted multimedia informatin terminal that is used for the described vehicle state monitoring method of claim 1, comprise interconnective warning sensing unit and main control unit, it is characterized in that, also comprise the authentication unit, wireless transmission unit, the GPS positioning unit that are connected with main control unit respectively, look the audio frequency input block, look audio treatment unit, storage unit and look audio output unit; Look audio treatment unit respectively with look audio frequency input block, storage unit, look audio output unit and be connected; Looking audio treatment unit, storage unit is connected with wireless transmission unit respectively; The GPS positioning unit is connected with the warning sensing unit; Described:
The warning sensing unit comprises external alert interface, GPS remote alarm interface and manual remote alarm interface, produces alert event behind the signal that receives the report for police service;
Main control unit comprises processor chips and built-in Control Software, is responsible for total scheduling and management;
The authentication unit is used for the authentication of equipment, comprises two kinds of patterns of fingerprint recognition and password authentification, preserves user's finger print information and password;
Wireless transmission unit is used for becoming multimedia short message to be sent to mobile phone the gps coordinate information package of audiovisual information and current vehicle, or audiovisual information in the car is sent on the receiving equipment of mobile phone, computer or monitoring central server in real time in the mode of looking the audio wireless network direct broadcasting, perhaps be used for the car phone signal and transmit;
The GPS positioning unit is used to obtain the current coordinate information accurately of vehicle;
Look the audio frequency input block and be used for typing car interior video and audio-frequency information;
Look audio treatment unit be used for will look the looking the audio frequency simulation data compression coding and the audio file of looking of storage unit input decompressed, decode of audio unit input;
Storage unit is used to preserve the video/audio behind multimedia file and the compressed encoding;
Look audio output unit, comprise a liquid crystal indicator, be used for the system operation interface and look the demonstration of voice playing.
5. vehicle mounted multimedia informatin terminal according to claim 4, it is characterized in that, also comprise a navigation elements that links to each other with main control unit, be used to point out the road information of car owner's vehicle position, electronic chart, navigation information are shown in the liquid crystal indicator of looking audio output unit.
6. vehicle mounted multimedia informatin terminal according to claim 4 is characterized in that, describedly looks the CVBS video input terminal that the audio frequency input block comprises autozoom camera, microphone and is used for external camera.
7. vehicle mounted multimedia informatin terminal according to claim 4 is characterized in that, the described audio output unit of looking also comprises loudspeaker and audio output; Described liquid crystal indicator is a touch LCD screen; Audio output is used for providing audio frequency output to vehicle self sound system.
8. vehicle mounted multimedia informatin terminal according to claim 4 is characterized in that, the described external interface that links to each other with main control unit that also comprises, and external interface comprises USB OTG interface and blue tooth interface, is used for external USB flash disk and bluetooth earphone, PDA or computer equipment.
Priority Applications (1)
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| CNA2007100714834A CN101178836A (en) | 2007-09-29 | 2007-09-29 | Vehicle state monitoring method and vehicle mounted multimedia informatin terminal thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100714834A CN101178836A (en) | 2007-09-29 | 2007-09-29 | Vehicle state monitoring method and vehicle mounted multimedia informatin terminal thereof |
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| CN101178836A true CN101178836A (en) | 2008-05-14 |
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| CNA2007100714834A Pending CN101178836A (en) | 2007-09-29 | 2007-09-29 | Vehicle state monitoring method and vehicle mounted multimedia informatin terminal thereof |
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