CN104640239A - Vehicle-mounted communication multimedia equipment with interface capable being customized by user - Google Patents
Vehicle-mounted communication multimedia equipment with interface capable being customized by user Download PDFInfo
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Abstract
The invention relates to vehicle-mounted communication multimedia equipment with an interface capable being customized by a user. The multimedia equipment comprises a main control unit, a power supply processing unit, a signal detection unit, a communication positioning unit, an interface unit, a Bluetooth/WIFI (wireless fidelity) communication unit and a man-machine interaction unit, wherein the power supply processing unit can provide various voltage grades, and can provide electric power for different modules or equipment, in addition, whether the electric power is supplied to different modules or equipment or not in different time periods can be controlled, and particularly, the equipment is also provided with an interface customization module used for controlling a screen of the multimedia equipment to work in different UI (user interface) formats according to the selection of a driver. The multimedia equipment has the advantages that the multi-option voltage sources are provided, in addition, the power supply can be saved, and in addition, the excellent man-machine interaction experience is realized.
Description
Technical field
The present invention relates to a kind of vehicle-carrying communication multimedia equipment, be specifically related to the vehicle-carrying communication multimedia equipment that a kind of user can customize interface.
Background technology
Existing on-vehicle information multimedia equipment is mainly divided into two large classes by function, and a class is to fill navigator after passenger car, and master is orientated in the another kind of monitoring with commercial car as.The navigation amusement equipment of passenger car have the functions such as video playback, document process and game, the monitoring positioning product of commercial car mainly uses its monitoring positioning function, is widely used on the commercial operation vehicles such as taxi, long-distance passenger transportation, fire fighting truck, police car, ambulance, Tour Bus.
Existing commercial car vehicle-carrying communication multimedia equipment proposes high requirement to power supply supply, the electric pressure that will adapt to plurality of devices is on the one hand selected, on the other hand also will saves energy as much as possible, to extend the electricity consumption up time of multimedia equipment and other portable equipments, this series products also proposes certain requirement to the stability of Power supply; In addition, existing commercial on-vehicle information multimedia equipment human-computer interaction function is not good enough, the inflexible doctrine in UI interface, style is single, easy generation visual fatigue, and the individual Sexual behavior mode that cannot meet driver, can not provide comfortable man-machine interaction for driver, more cannot provide visual enjoyment and alarm function for the driving procedure of driver, thus improve the security of operation of vehicle further.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, there is provided the vehicle-carrying communication multimedia equipment that a kind of user can customize interface, this multimedia equipment overcomes alternative poor, the uncontrollable saves energy of existing commercial on-vehicle information multimedia equipment voltage and ignores man-machine Consumer's Experience and use sense is subject to, vehicle operating security problems.
For the present invention that achieves the above object adopts following technical scheme: a kind of user can customize the vehicle-carrying communication multimedia equipment at interface, this multimedia equipment comprises main control unit, power supply processing unit, detecting signal unit, communication positioning unit, interface unit, bluetooth/WIFI communication unit, man-machine interaction unit, described power supply processing unit, detecting signal unit, communication positioning unit, interface unit, bluetooth/WIFI communication unit, man-machine interaction unit is connected with main control unit respectively, it is characterized in that, described power supply processing unit has power taking port, fuse, filter, DC/DC converter, transducer one, transducer two, transducer three, described power taking port connects fuse, fuse connects filter, filter electrical connection DC/DC converter, transducer one and transducer two are connected in parallel DC/DC converter, transducer three is connected in series transducer two, and, this multimedia equipment is also provided with the interface custom block be connected with main control unit, described interface custom block arranges manual selected cell and automatic selected cell, wherein, manual selected cell is used for the form at the screen operator UI interface selecting multimedia equipment for driver according to the hobby of oneself, and automatic selected cell is used for arranging screen operator UI interface formats according to the instruction of the remote cloud server received or main control unit.
The construction quality of manual selected cell is the lowest class, and the option that this unit is selected for driver comprises screen display theme, screen background, font size, font type, font color, language manipulation pattern, prompt tone type.
The language manipulation pattern of described manual selected cell comprises Chinese operator scheme and English operator scheme, and described Chinese operator scheme comprises simplified form of Chinese Character operator scheme and Chinese-traditional operator scheme.
The prompt tone type of described manual selected cell comprises any one in mandarin prompt tone pattern, Guangdong language prompt tone pattern, Shanghai native language prompt tone pattern, Sichuan words prompt tone pattern, Shandong words prompt tone pattern, Henan words prompt tone pattern, Shaanxi words prompt tone pattern, Hunan words prompt tone pattern, English prompts sound pattern.
The construction quality of described automatic selected cell is higher than the construction quality of manual selected cell, and the option that automatic selected cell controls comprises: screen display theme, screen background, font size, font type, font color, language manipulation pattern, prompt tone type; Wherein when automatic selected cell receive main control unit issue instruction time its construction quality be middle-and-high-ranking, automatic selected cell receive remote cloud server issue instruction time its construction quality be the superlative degree.
The instruction that described main control unit is issued makes higher than during the First Speed set when main control unit monitors car speed, and now automatic selected cell control screen background is for yellow and prompt tone pattern switches to male voice.
The instruction that the described remote cloud server received is issued is that now automatic selected cell control screen background is for redness and prompt tone pattern switches to male voice when remote cloud server receives car speed higher than instruction done during the second speed set.
Described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, and it comprises bluetooth module, WIFI module; Other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit carry out transfer of data by bluetooth or WIFI; Described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, comprise other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit and carry out transfer of data by bluetooth or WIFI, automatic Identification mobile phone also carries out bluetooth conversation.
Described man-machine interaction unit comprises high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker, central processing unit, high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker are all electrically connected with central processing unit, described central processing unit is used for control information input, image display and transfer voice, push-button unit has the button facilitating user to carry out manual direct control, for carrying out physical control when touch control manner is malfunctioning by button simultaneously; User, by the interface of touch-control touch-screen, conveniently can realize Voice Navigation, call, video, music and information interaction function, can also configure the sorts of systems parameter of multimedia equipment simultaneously.
Intelligent embedded OS in this multimedia equipment main control unit is Android system, supports according to actual management, user oneself requires that exploitation is applicable to the application software of commercial car use.
Wherein, the method for described remote cloud server and vehicle-carrying communication multimedia equipment co-controlling vehicle safety is: the 1) running status of Real-Time Monitoring vehicle and positional information, and the data monitored are sent to remote cloud server by communication network; 2) when monitoring vehicle and being in improper running status, remote cloud server produces an emergency alarm, and issues the instruction of Telelock oil circuit to multimedia equipment; 3) after multimedia equipment receives this instruction, controlled the oil circuit relay of vehicle by corresponding output port, cut off the oil circuit of vehicle, realize car locking function; 4) positional information of vehicle generation abnormal operational conditions and Che Nei image are sent to remote cloud server by multimedia equipment; 5) the vehicle abnormal operational conditions information that stores according to remote cloud server of remote management center, determines ensuing vehicle treatment measures.Wherein, described abnormal operational conditions comprises vehicle acceleration seriously excessive, car body is significantly shaken, vehicle brake is malfunctioning, vehicle confirms passenger on stolen, vehicle and driver exists life safety hazard.
Described main control unit has main control chip, such as, select a kind of chip of four core 1.6GHz dominant frequency.Internal memory selection memory capacity is the ROM of RAM and 4G of 2G, support expansion SD card heap(ed) capacity 64G, have integrated circuit built-in audio I2S (Inter-IC Sound) bus simultaneously, I2C (Inter-Integrated Circuit) bus, Serial Peripheral Interface (SPI) (SPI), secure digital input the various hardware resource such as output interface (SDI0) and a large amount of GPIO.
Described power supply processing unit has power taking port, fuse, filter, DC/DC converter, transducer one, transducer two, transducer three, described power taking port connects cigar lighter, fuse connects power taking port and filter, filter electrical connection DC/DC converter, transducer one and transducer two are connected in parallel DC/DC converter, and transducer three is connected in series transducer two; Described automobile power source processing unit meets onboard electrical specification completely, utilize this equipment, directly from car cigarette lighter power taking, carry out voltage transitions and filtering process, the transient voltage of 20kV during vehicle launch can be tackled, add the stability of equipment work, the burning voltage that power supply can export more than 20W is after treatment given to external accessories and uses; When vehicle is struck sparks, equipment starts automatically, and when equipment stops working, equipment automatic cut-off power is to protect vehicle accumulator, can by remote center's controlled in wireless from the time interval of stopping working to the power supply of cut-out own.Automobile power source processing unit is when powering on for the first time, and when vehicle power ACC signal is high, whole vehicle-mounted multimedia equipment starts power supply.Vehicle power after after filtering, by DC-DC, is reduced to 5V by supply voltage after overcurrent fuse, then by voltage transitions, 5V is changed into 4.2V and 3.3V, and 3.3V changes into 1.8V again.The power supply of various peripheral hardware is all controlled, comprises screen, communication module, locating module, makes a video recording first-class, like this when system hibernates, can reduce the power consumption of system.When supply voltage low pressure, multimedia equipment can also cut off self power supply, protection automobile storage battery.
The method of work that described power supply processing unit carries out power supply process is: 1) after automobile starting power supply processing unit from cigar lighter power taking; 2) electric current is through the fuse of power supply processing unit, if fuse is without exception, then power taking is normal, and this electric current flows into filter; 3) described filter carries out strict filtering to this power taking electric current, by bulky capacitor filtering low frequency signal, by small capacitances filtering high-frequency signal, described bulky capacitor at least differs 10 times with the capacitance of small capacitances, and such as the application is preferably the bulky capacitor of 22 μ F and the small capacitances of 0.1 μ F; 4) strict filtered electric current inputs to DC/DC electric pressure converter and carries out the first voltage transitions, and described first voltage transitions is the voltage of 5V by the voltage transformation of cigar lighter; 5) the 5V voltage after the first voltage transitions is inputed to transducer one simultaneously and transducer two carries out the second voltage transitions, described second voltage transitions is to be 4.2V voltage by 5V voltage transitions by transducer one and to be 3.3V voltage by transducer two by 5V voltage transitions; 6) the 3.3V voltage that transducer two exports inputs to transducer three and carries out tertiary voltage conversion, and described tertiary voltage conversion is 1.8V voltage by transducer three by 3.3V voltage transitions.
When multimedia equipment main control unit detects that the corresponding units of multimedia equipment inside is in resting state, then control the supply path that power supply processing unit turns off corresponding units.When main control unit receives the instruction of corresponding units needs power supply, then control to restore electricity to the supply path of corresponding units.
The input object of described vehicle signal detecting unit comprises switching signal, analog signal and CAN data three category information, and by the information real-time Transmission that gathers to on-vehicle information multimedia equipment, and be uploaded to remote cloud server by this on-vehicle information multimedia equipment and store described information.Signal and master control are isolated by optocoupler by the detection of switching signal, avoid signal disturbing.The detected object of described switching signal comprises connects vehicle power ACC, left-hand rotation direction indicator lamp, right-hand rotation direction indicator lamp, dipped headlights, high beam, brake, door sideline, front fog lamp, Rear Fog Lamp etc.Analog signal comprises automobile storage battery voltage, backup battery voltage, car locking electric circuit inspection and oil mass detection etc.Described CAN data are the information data that vehicle-mounted each electronic control unit (ECU) gathers and exchanges.
Described multimedia equipment is integrated with the total interface of almost vehicle, comprise storage battery and detect interface, video interface, door image edge detection interface, oil consumption detection interface, power supply (ACC) interface connecting automotive department ignition distributor equipment, RS232 communication interface, RS485 communication interface, CAN interface, eight signals input detection GPIO, four export control GPIO, computer standard DB9 mouth, USB interface, SD card interface, itself supports MIC and loudspeaker, also support the external of MIC and loudspeaker simultaneously, support the built-in and external of Beidou antenna.Wherein, described interface unit is USB/UART/SD/CAN interface unit, for connecting various functional module or equipment, multimedia equipment hardware designs adopts the USB HUB structure of extensive interface, the advantage that USB device has traffic rate fast, have multiple module to use USB interface, WIFI module, 3G communication module and peripheral hardware flash memory etc. all adopt USB interface; UART is mainly used in bluetooth, locating module communication, external camera, the extraction of driving recording data etc., because the place of using is many, to the UART interface wherein adopting multiplex mode, is switched by 74HC126; SDIO interface is mainly used to and flash memory cards (TF) communication, and flash memory cards is used for storing multimedia equipment operating data, the data such as system mistake data and video file; CAN interface connects with automobile computer, and obtain the travelling data of vehicle, such as start rotating speed, vehicle trouble code etc., are convenient to vehicle diagnostics.
Described communication positioning unit comprises communication module, GPS/ Big Dipper locating module, Android communication drivers module, described communication module also has communication pattern determining unit and signal transmitting and receiving unit, described communication pattern determining unit is used for selecting suitable communication network according to the signal(l)ing condition of communication network, described communication pattern determining unit is used for when detecting that 4G communication network signal receives normal, determine to adopt 4G communication pattern and remote management center to carry out exchanges data, when detecting that the message transmission rate of 4G communication network is less than the first transmission rate threshold values, determine to adopt 3G communication pattern and remote management center to carry out exchanges data, when detecting that the message transmission rate of 3G communication network is less than the second transmission rate threshold values, determine to adopt 2G communication pattern or note to carry out exchanges data, described signal transmitting and receiving unit is for the monitored instruction that receives remote management center and send over and send the real time data such as position, speed, oil consumption that commercial vehicle-mounted multimedia equipment gathers.Described GPS/ Big Dipper locating module is used for for multimedia equipment and remote management center provide the positional information of vehicle, and for providing positioning function for vehicle.
Should be noted that, described communication positioning unit comprises communication module, GPS/ Big Dipper locating module, Android communication drivers module, described communication module also has communication pattern determining unit and signal transmitting and receiving unit, described communication pattern determining unit is used for selecting also have another kind of form during suitable communication network according to the signal(l)ing condition of communication network, when it detects that 3G communication network signal receives normal, determine to adopt 3G communication pattern and remote management center to carry out exchanges data, when detecting that the message transmission rate of 3G communication network is less than the second transmission rate threshold values, determine to adopt 2G communication pattern or note to carry out exchanges data, described signal transmitting and receiving unit is for the monitored instruction that receives remote management center and send over and send the real time data such as position, speed, oil consumption that commercial vehicle-mounted multimedia equipment gathers.Described GPS/ Big Dipper locating module is used for for multimedia equipment and remote management center provide the positional information of vehicle, and for providing positioning function for vehicle.
Android communication drivers module is connected with communication network for making the android system of multimedia equipment.The communication module of native system is adopt WCDMA or TD-SCDMA supporting 4G network TD-LTE or FDD-LTE pattern, 3G network, and the communication module of 2G network G SM, and support high speed downlink packet (HSDPA) network, adopt USB interface and main control unit communication, locating module supports GPS location and Big Dipper location, tracking sensitivity is-160dBm, adopts serial ports and main control unit communication.
Described man-machine interaction unit comprises high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker, central processing unit, high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker are all electrically connected with central processing unit, described central processing unit is used for control information input, image display and transfer voice, push-button unit has the button facilitating user to carry out manual direct control simultaneously, guarantees to carry out physical control when touch control manner is malfunctioning by button; User, by the interface of touch-control touch-screen, conveniently can realize Voice Navigation, call, video, music and information interaction function, can also configure the sorts of systems parameter of multimedia equipment simultaneously.When vehicle occurs that abnormal operating condition or driver think necessary, can be realized and remote management center real-time voice or video conversation by this multimedia equipment, remote management center checks the image information in car by camera, and by loud speaker and/or display screen order command is issued to driver in conjunction with vehicle, road and environmental aspect data or by continuing lock oil circuit, lock door, the form such as brake directly controls vehicle condition, meanwhile, vehicle driver can also check by display screen the information that remote management center transmits.
The high definition capacitance touching control display screen that this multimedia equipment carries, is convenient to the mutual of user and remote management center, is also conducive to operation and the experience of third party software.Multimedia equipment is operating system based on android operating system, after having carried out a large amount of system optimizations, this equipment is made to be more suitable for being suitable in commercial automotive field, specifically comprise the preferential lifting of 3G/4G communication function, the operations such as telephony feature priority reduction, make equipment within 24 hours, continually can carry out radio communication with remote management center, the automatic choice for use 3G communication network uploading data when 4G abnormal signal, then automatically choice for use 2G or note information upload when 3G abnormal signal, thus guarantee the continuation of information transmission to the full extent.In addition, multimedia equipment is provided with audio-visual application software, supports displaying video or audio file.
In addition, this multimedia equipment equipment has well compatible and open, supports that user oneself requires according to actual management to develop the application software being applicable to commercial car and using, and can customize style and the form at main interface.Effectively improve the convenience of User Exploitation vehicular applications, thus the kind of horn of plenty and expansion vehicular applications and quantity provide an effective platform, reduce the entry threshold of commercial vehicular applications.
Described bluetooth/WIFI communication unit has bluetooth module and WIFI module, and bluetooth module is connected with main control unit by serial ports, and WIFI module is by USB interface and main control unit communication.Described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, comprise other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit and carry out transfer of data by bluetooth or WIFI, such as automatic Identification mobile phone also carries out bluetooth conversation, or carries out transfer of data etc. with hand-hold electronic equipments such as smart mobile phone, panel computer PAD.
Due to technique scheme, the present invention has following beneficial effect: (1) provides the supply voltage grade of more options, facilitates module or the equipment power-extracting of various electric pressure; (2) functional unit that can control multimedia equipment has a power failure when dormancy, thus saves energy; (3) multimedia equipment has outstanding Man machine interaction, can allow user-defined interface, can provide effectively and the service of hommization while facilitating remote management center to carry out managing.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the vehicle-carrying communication multimedia equipment overall structure figure that user can customize interface
Fig. 2 is main control unit electrical block diagram
Fig. 3 is automobile power source processing unit structural representation
Fig. 4 is the confession electrical schematic of automobile power source processing unit
Fig. 5 is vehicle signal detecting unit structural representation
Fig. 6 is interface unit structural representation
Fig. 7 is communication positioning unit structural representation
Fig. 8 is man-machine interaction unit structural representation
Fig. 9 is bluetooth/WIFI communication unit structural representation
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
Embodiment:
See Fig. 1, a kind of user can customize the vehicle-carrying communication multimedia equipment at interface, this multimedia equipment comprises main control unit, power supply processing unit, detecting signal unit, communication positioning unit, interface unit, bluetooth/WIFI communication unit, man-machine interaction unit, described power supply processing unit, detecting signal unit, communication positioning unit, interface unit, bluetooth/WIFI communication unit, man-machine interaction unit is connected with main control unit respectively, it is characterized in that, described power supply processing unit has power taking port, fuse, filter, DC/DC converter, transducer one, transducer two, transducer three, described power taking port connects fuse, fuse connects filter, filter electrical connection DC/DC converter, transducer one and transducer two are connected in parallel DC/DC converter, transducer three is connected in series transducer two, and, this multimedia equipment is also provided with the interface custom block be connected with main control unit, described interface custom block arranges manual selected cell and automatic selected cell, wherein, manual selected cell is used for the form at the screen operator UI interface selecting multimedia equipment for driver according to the hobby of oneself, and automatic selected cell is used for arranging screen operator UI interface formats according to the instruction of the remote cloud server received or main control unit.
The construction quality of manual selected cell is the lowest class, and the option that this unit is selected for driver comprises screen display theme, screen background, font size, font type, font color, language manipulation pattern, prompt tone type.
The language manipulation pattern of described manual selected cell comprises Chinese operator scheme and English operator scheme, and described Chinese operator scheme comprises simplified form of Chinese Character operator scheme and Chinese-traditional operator scheme.
The prompt tone type of described manual selected cell comprises any one in mandarin prompt tone pattern, Guangdong language prompt tone pattern, Shanghai native language prompt tone pattern, Sichuan words prompt tone pattern, Shandong words prompt tone pattern, Henan words prompt tone pattern, Shaanxi words prompt tone pattern, Hunan words prompt tone pattern, English prompts sound pattern.
The construction quality of described automatic selected cell is higher than the construction quality of manual selected cell, and the option that automatic selected cell controls comprises: screen display theme, screen background, font size, font type, font color, language manipulation pattern, prompt tone type; Wherein when automatic selected cell receive main control unit issue instruction time its construction quality be middle-and-high-ranking, automatic selected cell receive remote cloud server issue instruction time its construction quality be the superlative degree.
The instruction that described main control unit is issued makes higher than during the First Speed set when main control unit monitors car speed, and now automatic selected cell control screen background is for yellow and prompt tone pattern switches to male voice.
The instruction that the described remote cloud server received is issued is that now automatic selected cell control screen background is for redness and prompt tone pattern switches to male voice when remote cloud server receives car speed higher than instruction done during the second speed set.
Described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, and it comprises bluetooth module, WIFI module; Other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit carry out transfer of data by bluetooth or WIFI; Described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, comprise other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit and carry out transfer of data by bluetooth or WIFI, automatic Identification mobile phone also carries out bluetooth conversation.
Described man-machine interaction unit comprises high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker, central processing unit, high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker are all electrically connected with central processing unit, described central processing unit is used for control information input, image display and transfer voice, push-button unit has the button facilitating user to carry out manual direct control, for carrying out physical control when touch control manner is malfunctioning by button simultaneously; User, by the interface of touch-control touch-screen, conveniently can realize Voice Navigation, call, video, music and information interaction function, can also configure the sorts of systems parameter of multimedia equipment simultaneously.
Intelligent embedded OS in this multimedia equipment main control unit is Android system, supports according to actual management, user oneself requires that exploitation is applicable to the application software of commercial car use.
Wherein, the method for described remote cloud server and vehicle-carrying communication multimedia equipment co-controlling vehicle safety is: the 1) running status of Real-Time Monitoring vehicle and positional information, and the data monitored are sent to remote cloud server by communication network; 2) when monitoring vehicle and being in abnormal operational conditions, remote cloud server produces an emergency alarm, and issues the instruction of Telelock oil circuit to multimedia equipment; 3) after multimedia equipment receives this instruction, controlled the oil circuit relay of vehicle by corresponding output port, cut off the oil circuit of vehicle, realize car locking function; 4) positional information of vehicle generation abnormal operational conditions and Che Nei image are sent to remote cloud server by multimedia equipment; 5) the vehicle abnormal operational conditions information that stores according to remote cloud server of remote management center, determines ensuing vehicle treatment measures.Wherein, described abnormal operational conditions comprises vehicle acceleration seriously excessive, car body is significantly shaken, vehicle brake is malfunctioning, vehicle confirms passenger on stolen, vehicle and driver exists life safety hazard.
See Fig. 2, described main control unit has main control chip, such as, select a kind of chip of four core 1.6GHz dominant frequency.Internal memory selection memory capacity is the ROM of RAM and 4G of 2G, support expansion SD card heap(ed) capacity 64G, have integrated circuit built-in audio I2S (Inter-IC Sound) bus simultaneously, I2C (Inter-Integrated Circuit) bus, Serial Peripheral Interface (SPI) (SPI), secure digital input the various hardware resource such as output interface (SDI0) and a large amount of GPIO.
See Fig. 3, Fig. 4, described power supply processing unit has power taking port, fuse, filter, DC/DC converter, transducer one, transducer two, transducer three, described power taking port connects cigar lighter, fuse connects power taking port and filter, filter electrical connection DC/DC converter, transducer one and transducer two are connected in parallel DC/DC converter, and transducer three is connected in series transducer two; Described automobile power source processing unit meets onboard electrical specification completely, utilize this equipment, directly from car cigarette lighter power taking, carry out voltage transitions and filtering process, the transient voltage of 20kV during vehicle launch can be tackled, add the stability of equipment work, the burning voltage that power supply can export more than 20W is after treatment given to external accessories and uses; When vehicle is struck sparks, equipment starts automatically, and when equipment stops working, equipment automatic cut-off power is to protect vehicle accumulator, can by remote center's controlled in wireless from the time interval of stopping working to the power supply of cut-out own.Automobile power source processing unit is when powering on for the first time, and when vehicle power ACC signal is high, whole vehicle-mounted multimedia equipment starts power supply.Vehicle power after after filtering, by DC-DC, is reduced to 5V by supply voltage after overcurrent fuse, then by voltage transitions, 5V is changed into 4.2V and 3.3V, and 3.3V changes into 1.8V again.The power supply of various peripheral hardware is all controlled, comprises screen, communication module, locating module, makes a video recording first-class, like this when system hibernates, can reduce the power consumption of system.When supply voltage low pressure, multimedia equipment can also cut off self power supply, protection automobile storage battery.
The method of work that described power supply processing unit carries out power supply process is: 1) after automobile starting power supply processing unit from cigar lighter power taking; 2) electric current is through the fuse of power supply processing unit, if fuse is without exception, then power taking is normal, and this electric current flows into filter; 3) described filter carries out strict filtering to this power taking electric current, by bulky capacitor filtering low frequency signal, by small capacitances filtering high-frequency signal, described bulky capacitor at least differs 10 times with the capacitance of small capacitances, and such as the application is preferably the bulky capacitor of 22 μ F and the small capacitances of 0.1 μ F; 4) strict filtered electric current inputs to DC/DC electric pressure converter and carries out the first voltage transitions, and described first voltage transitions is the voltage of 5V by the voltage transformation of cigar lighter; 5) the 5V voltage after the first voltage transitions is inputed to transducer one simultaneously and transducer two carries out the second voltage transitions, described second voltage transitions is to be 4.2V voltage by 5V voltage transitions by transducer one and to be 3.3V voltage by transducer two by 5V voltage transitions; 6) the 3.3V voltage that transducer two exports inputs to transducer three and carries out tertiary voltage conversion, and described tertiary voltage conversion is 1.8V voltage by transducer three by 3.3V voltage transitions.
When multimedia equipment main control unit detects that the corresponding units of multimedia equipment inside is in resting state, then control the supply path that power supply processing unit turns off corresponding units.When main control unit receives the instruction of corresponding units needs power supply, then control to restore electricity to the supply path of corresponding units.
See Fig. 5, the input object of described vehicle signal detecting unit comprises switching signal, analog signal and CAN data three category information, and by the information real-time Transmission that gathers to on-vehicle information multimedia equipment, and be uploaded to remote cloud server by this on-vehicle information multimedia equipment and store described information.Signal and master control are isolated by optocoupler by the detection of switching signal, avoid signal disturbing.The detected object of described switching signal comprises connects vehicle power ACC, left-hand rotation direction indicator lamp, right-hand rotation direction indicator lamp, dipped headlights, high beam, brake, door sideline, front fog lamp, Rear Fog Lamp etc.Analog signal comprises automobile storage battery voltage, backup battery voltage, car locking electric circuit inspection and oil mass detection etc.Described CAN data are the information data that vehicle-mounted each electronic control unit (ECU) gathers and exchanges.
See Fig. 6, described multimedia equipment is integrated with the total interface of almost vehicle, comprise storage battery and detect interface, video interface, door image edge detection interface, oil consumption detection interface, power supply (ACC) interface connecting automotive department ignition distributor equipment, RS232 communication interface, RS485 communication interface, CAN interface, eight signals input detection GPIO, four export control GPIO, computer standard DB9 mouth, USB interface, SD card interface, itself supports MIC and loudspeaker, also support the external of MIC and loudspeaker simultaneously, support the built-in and external of Beidou antenna.Wherein, described interface unit is USB/UART/SD/CAN interface unit, for connecting various functional module or equipment, multimedia equipment hardware designs adopts the USB HUB structure of extensive interface, the advantage that USB device has traffic rate fast, have multiple module to use USB interface, WIFI module, 3G communication module and peripheral hardware flash memory etc. all adopt USB interface; UART is mainly used in bluetooth, locating module communication, external camera, the extraction of driving recording data etc., because the place of using is many, to the UART interface wherein adopting multiplex mode, is switched by 74HC126; SDIO interface is mainly used to and flash memory cards (TF) communication, and flash memory cards is used for storing multimedia equipment operating data, the data such as system mistake data and video file; CAN interface connects with automobile computer, and obtain the travelling data of vehicle, such as start rotating speed, vehicle trouble code etc., are convenient to vehicle diagnostics.
See Fig. 7, described communication positioning unit comprises communication module, GPS/ Big Dipper locating module, Android communication drivers module, described communication module also has communication pattern determining unit and signal transmitting and receiving unit, described communication pattern determining unit is used for selecting suitable communication network according to the signal(l)ing condition of communication network, described communication pattern determining unit is used for when detecting that 4G communication network signal receives normal, determine to adopt 4G communication pattern and remote management center to carry out exchanges data, when detecting that the message transmission rate of 4G communication network is less than the first transmission rate threshold values, determine to adopt 3G communication pattern and remote management center to carry out exchanges data, when detecting that the message transmission rate of 3G communication network is less than the second transmission rate threshold values, determine to adopt 2G communication pattern or note to carry out exchanges data, described signal transmitting and receiving unit is for the monitored instruction that receives remote management center and send over and send the real time data such as position, speed, oil consumption that commercial vehicle-mounted multimedia equipment gathers.Described GPS/ Big Dipper locating module is used for for multimedia equipment and remote management center provide the positional information of vehicle, and for providing positioning function for vehicle.
Should be noted that, described communication positioning unit comprises communication module, GPS/ Big Dipper locating module, Android communication drivers module, described communication module also has communication pattern determining unit and signal transmitting and receiving unit, described communication pattern determining unit is used for selecting also have another kind of form during suitable communication network according to the signal(l)ing condition of communication network, when it detects that 3G communication network signal receives normal, determine to adopt 3G communication pattern and remote management center to carry out exchanges data, when detecting that the message transmission rate of 3G communication network is less than the second transmission rate threshold values, determine to adopt 2G communication pattern or note to carry out exchanges data, described signal transmitting and receiving unit is for the monitored instruction that receives remote management center and send over and send the real time data such as position, speed, oil consumption that commercial vehicle-mounted multimedia equipment gathers.Described GPS/ Big Dipper locating module is used for for multimedia equipment and remote management center provide the positional information of vehicle, and for providing positioning function for vehicle.
Android communication drivers module is connected with communication network for making the android system of multimedia equipment.The communication module of native system is adopt WCDMA or TD-SCDMA supporting 4G network TD-LTE or FDD-LTE pattern, 3G network, and the communication module of 2G network G SM, and support high speed downlink packet (HSDPA) network, adopt USB interface and main control unit communication, locating module supports GPS location and Big Dipper location, tracking sensitivity is-160dBm, adopts serial ports and main control unit communication.
See Fig. 8, described man-machine interaction unit comprises high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker, central processing unit, high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker are all electrically connected with central processing unit, described central processing unit is used for control information input, image display and transfer voice, push-button unit has the button facilitating user to carry out manual direct control simultaneously, guarantees to carry out physical control when touch control manner is malfunctioning by button; User, by the interface of touch-control touch-screen, conveniently can realize Voice Navigation, call, video, music and information interaction function, can also configure the sorts of systems parameter of multimedia equipment simultaneously.When vehicle occurs that abnormal operating condition or driver think necessary, can be realized and remote management center real-time voice or video conversation by this multimedia equipment, remote management center checks the image information in car by camera, and by loud speaker and/or display screen order command is issued to driver in conjunction with vehicle, road and environmental aspect data or by continuing lock oil circuit, lock door, the form such as brake directly controls vehicle condition, meanwhile, vehicle driver can also check by display screen the information that remote management center transmits.
The high definition capacitance touching control display screen that this multimedia equipment carries, is convenient to the mutual of user and remote management center, is also conducive to operation and the experience of third party software.Multimedia equipment is operating system based on android operating system, after having carried out a large amount of system optimizations, this equipment is made to be more suitable for being suitable in commercial automotive field, specifically comprise the preferential lifting of 3G/4G communication function, the operations such as telephony feature priority reduction, make equipment within 24 hours, continually can carry out radio communication with remote management center, the automatic choice for use 3G communication network uploading data when 4G abnormal signal, then automatically choice for use 2G or note information upload when 3G abnormal signal, thus guarantee the continuation of information transmission to the full extent.In addition, multimedia equipment is provided with audio-visual application software, supports displaying video or audio file.
In addition, this multimedia equipment equipment has well compatible and open, supports that user oneself requires according to actual management to develop the application software being applicable to commercial car and using, and can customize style and the form at main interface.Effectively improve the convenience of User Exploitation vehicular applications, thus the kind of horn of plenty and expansion vehicular applications and quantity provide an effective platform, reduce the entry threshold of commercial vehicular applications.
See Fig. 9, described bluetooth/WIFI communication unit has bluetooth module and WIFI module, and bluetooth module is connected with main control unit by serial ports, and WIFI module is by USB interface and main control unit communication.Described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, comprise other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit and carry out transfer of data by bluetooth or WIFI, such as automatic Identification mobile phone also carries out bluetooth conversation, or carries out transfer of data etc. with hand-hold electronic equipments such as smart mobile phone, panel computer PAD.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a user can customize the vehicle-carrying communication multimedia equipment at interface, described multimedia equipment comprises main control unit, power supply processing unit, detecting signal unit, communication positioning unit, interface unit, bluetooth/WIFI communication unit, man-machine interaction unit, described power supply processing unit, detecting signal unit, communication positioning unit, interface unit, bluetooth/WIFI communication unit, man-machine interaction unit is connected with main control unit respectively, it is characterized in that, described power supply processing unit has power taking port, fuse, filter, DC/DC converter, transducer one, transducer two, transducer three, described power taking port connects fuse, fuse connects filter, filter electrical connection DC/DC converter, transducer one and transducer two are connected in parallel DC/DC converter, transducer three is connected in series transducer two, and, this multimedia equipment is also provided with the interface custom block be connected with main control unit, described interface custom block arranges manual selected cell and automatic selected cell, wherein, manual selected cell is used for the form at the screen operator UI interface selecting multimedia equipment for driver according to the hobby of oneself, and automatic selected cell is used for arranging screen operator UI interface formats according to the instruction of the remote cloud server received or main control unit.
2. user according to claim 1 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, the construction quality of manual selected cell is the lowest class, and the option that this unit is selected for driver comprises screen display theme, screen background, font size, font type, font color, language manipulation pattern, prompt tone type.
3. user according to claim 2 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, the language manipulation pattern of described manual selected cell comprises Chinese operator scheme and English operator scheme, and described Chinese operator scheme comprises simplified form of Chinese Character operator scheme and Chinese-traditional operator scheme.
4. user according to claim 3 can customize the vehicle-carrying communication multimedia equipment at interface; it is characterized in that, the prompt tone type of described manual selected cell comprises mandarin prompt tone pattern, Guangdong language prompt tone pattern, Shanghai native language prompt tone pattern, Sichuan words prompt tone pattern, Shandong words prompt tone pattern, Henan words prompt tone pattern, Shaanxi words prompt tone pattern, Hunan words prompt tone pattern, English prompts sound pattern.
5. user according to claim 1 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, the construction quality of described automatic selected cell is higher than the construction quality of manual selected cell, and the option that automatic selected cell controls comprises: screen display theme, screen background, font size, font type, font color, language manipulation pattern, prompt tone type; Wherein when automatic selected cell receive main control unit issue instruction time its construction quality be middle-and-high-ranking, automatic selected cell receive remote cloud server issue instruction time its construction quality be the superlative degree.
6. user according to claim 5 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, the instruction that described main control unit is issued makes higher than during the First Speed set when main control unit monitors car speed, and now automatic selected cell control screen background is for yellow and prompt tone pattern switches to male voice.
7. user according to claim 6 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, the instruction that the described remote cloud server received is issued is that now automatic selected cell control screen background is for redness and prompt tone pattern switches to male voice when remote cloud server receives car speed higher than instruction done during the second speed set.
8. the user according to any one of claim 5-7 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, and it comprises bluetooth module, WIFI module; Other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit carry out transfer of data by bluetooth or WIFI; Described bluetooth/WIFI communication unit is used for facilitating multimedia equipment to carry out local data transfer, comprise other portable electric appts realized in multimedia equipment and car by described bluetooth/WIFI communication unit and carry out transfer of data by bluetooth or WIFI, automatic Identification mobile phone also carries out bluetooth conversation.
9. user according to claim 8 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, described man-machine interaction unit comprises high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker, central processing unit, high definition capacitance touching control display screen, push-button unit, microphone, camera, loud speaker is all electrically connected with central processing unit, described central processing unit is used for control information input, image display and transfer voice, push-button unit has the button facilitating user to carry out manual direct control simultaneously, for carrying out physical control when touch control manner is malfunctioning by button, user, by the interface of touch-control touch-screen, conveniently can realize Voice Navigation, call, video, music and information interaction function, can also configure the sorts of systems parameter of multimedia equipment simultaneously.
10. user according to claim 8 or claim 9 can customize the vehicle-carrying communication multimedia equipment at interface, it is characterized in that, intelligent embedded OS in this multimedia equipment main control unit is Android system, supports according to actual management, user oneself requires that exploitation is applicable to the application software of commercial car use.
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