CN103538530A - Separated vehicle-mounted device - Google Patents
Separated vehicle-mounted device Download PDFInfo
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- CN103538530A CN103538530A CN201310450624.9A CN201310450624A CN103538530A CN 103538530 A CN103538530 A CN 103538530A CN 201310450624 A CN201310450624 A CN 201310450624A CN 103538530 A CN103538530 A CN 103538530A
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Abstract
The invention relates to a separated vehicle-mounted device. The device comprises a basic processing unit and an external replaceable control unit, wherein the basic processing unit and the external replaceable control unit are mutually separated, and the basic processing unit and the external replaceable control unit are connected through a data line. The device has the advantages that traditional integral design of the vehicle-mounted device is changed into separated design, it is that the vehicle-mounted device is separated into the basic processing unit and the replaceable control unit, and therefore the equipment can be updated conveniently by only replacing the external control unit.
Description
technical field
The present invention relates to vehicle carried video field, particularly a kind of separation type car-mounted device.
Background technology
The development of science and technology, makes rapid progress update processor, and CPU is by former single core, double-core, and four cores, to eight cores of main flow; Internal memory was also upgraded to the 2GB internal memory of current main flow by former 256 MB of memory.Following CPU speed is more and more faster, and internal memory is also increasing.
At present, vehicle audio design control system, all in inside, can not be carried out HardwareUpgring.When upgrading appears in software, because hardware system can not upgrade in time, cause system operation more and more slower.This has limited the use of new functional software greatly.
The present invention is directed to the deficiency of existing on-vehicle acoustic apparatus, proposed a kind of separation type car-mounted device.This device is changed into separation design from traditional integral design, and a basic processing unit and a replaceable control unit, only need, by changing external control unit, can conveniently carry out device upgrade thereby realized.
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Summary of the invention
The present invention is directed to the shortcoming of existing on-vehicle acoustic apparatus hardware update difficulty, designed a kind of car-mounted device of being convenient to HardwareUpgring.
A kind of mobile unit, it is characterized in that, comprise basic processing unit and outside replaceable control unit, the replaceable control unit of described basic processing unit and described outside is separated from each other, and described basic processing unit is connected by digital signal transmission line with the replaceable control unit in described outside.
Further, described digital signal transmission line is that a pair of differential signal twisted-pair feeder or a pair of differential signal twisted-pair feeder add some control signal wires.
Further, the control signal wire between the treater of the replaceable control unit of described basic processing unit and described outside can be serial ports or
or SPI or USB transmission line.
Further, the audio-video signal of the replaceable control unit in described outside sends to basic processing unit end by a pair of differential signal line and processes.
Further, the control signal between the treater of the replaceable control unit of described basic processing unit and described outside both can individual transmission, also can was bundled in differential signal line and be transmitted by digital signal sending module.
Further, described basic processing unit comprises micro controller system, peripheral apparatus, digital signal reception module, switch unit, display module and power amplifier module.
Further, described peripheral apparatus comprises any or several combination in GPS module, automobile CAN-bus module, bluetooth module, radio receiver module, vehicle-carrying DVD module, back up rearview mirror module, digital television module.
Further, described peripheral apparatus also comprises Display panel screen, panel button and touch-screen.
Further, described outside replaceable units comprises any or several combination in CPU, memory modules, memory module and interface module, digital signal sending module.
Further, described interface module comprises SD card interface and/or USB interface.
Advantage of the present invention is: car-mounted device is changed into separation design from traditional integral design, and a basic processing unit and a replaceable control unit, only need, by changing external control unit, can conveniently carry out device upgrade thereby realized.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the control flow chart of outside replaceable units of the present invention to each equipment of basic processing unit.
Fig. 3 is the playing flow figure of audio/video information of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present invention, feature and flow process are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of separation type car-mounted device comprises basic processing unit 101 and outside replaceable units 103, and described basic processing unit 101 is connected by digital signal transmission line 102 with outside replaceable units 103.
Wherein, basic processing unit 101 comprises micro controller system 104, GPS module 105, vehicle-mounted CAN module 106, bluetooth module 107, radio receiver module 108, vehicle-carrying DVD module 109, back up rearview mirror module 110, digital television module 111, digital signal reception module 112, switch unit 113, display module 116 and power amplifier module 117; Wherein switch unit 113 comprises video frequency switching module 114 and Audio conversion module 115.Described GPS module 105 is connected with described micro controller system 104, described vehicle-mounted CAN module 106 is connected with described micro controller system 104, described bluetooth module 107 is connected with described micro controller system 104, described radio receiver module 108 is connected with described micro controller system 104, described vehicle-carrying DVD module 109 is connected with described micro controller system 104, described back up rearview mirror module 110 is connected with described micro controller system 104, and described digital television module 111 is connected with described micro controller system 104; Described bluetooth module 107, radio receiver module 108, vehicle-carrying DVD module 109, back up rearview mirror module 110, digital television module 111 are connected with switch unit; Described video frequency switching module 114 is connected with described display module 116, and described Audio conversion module 115 is connected with power amplifier module 117.
Wherein, outside replaceable units 103 comprises CPU118, memory modules 119, memory module 120, interface module 121 and digital signal sending module 122, described memory modules 119 is connected with described CPU118, described memory module 120 is connected with described CPU118, described interface module 121 is connected with described CPU118, and described digital signal sending module 122 is connected with described CPU118.
Wherein, digital signal transmission line 102 comprises and controls wire size line and audio frequency and video are divided difference signal line.
In embodiment, described CPU118 is connected by controlling wire size line with micro controller system 104, and described digital signal sending module 122 divides difference signal line with digital signal reception module 112 by audio frequency and video.
The vision signal of described vehicle-carrying DVD module 109, back up rearview mirror module 110, digital television module 111 and digital signal reception module 112 shows by display module 116 after switching by video frequency switching module 114.
The sound signal of described bluetooth module 107, radio receiver module 108, vehicle-carrying DVD module 109, back up rearview mirror module 110, digital television module 111 and digital signal reception module 112 is play by power amplifier module 117 after switching by Audio conversion module 115.
As shown in Figure 2, a kind of separation type car-mounted device sends to micro controller system 104 by outside replaceable units 103 control command, the order that micro controller system 104 receives is distributed to each peripheral apparatus 201(and comprises GPS module 105, vehicle-mounted CAN module 106, bluetooth module 107, radio receiver module 108, vehicle-carrying DVD module 109, back up rearview mirror module 110 and digital television module 111), and the data that collect from each peripheral apparatus 201 are sent to outside replaceable units 103.
As shown in Figure 3, the audio-video signal that a kind of separation type car-mounted device sends outside replaceable units 103 sends digital received module 112 to by digital sending module 122, digital received module 112 shows the video information 301 in the audio-video signals that receive by display module 116, audio-frequency information 302 is play by power amplifier module 117.
In embodiment, digital signal sending module 122 is encoded into 1 pair of differential signal 32 digital signals by DHlink chip, 1 pair of differential signal arrives digital signal reception module 112 by Double-strand transmission, and digital signal reception module 122 is transferred to power amplifier module 117 and display module 116 after the 1 pair of differential signal receiving being reduced into 32 digital signals by decoding by DHlink chip.
In embodiment, 32 digital signals comprise operation (DE), 28 data-signals of clock (CLOCK), and the output of audio frequency I2S signal, generally comprises major clock (MCK), bit clock (BCK), left and right clock (LRCK), voice data (DAO) 4 bars.
Micro controller system model in embodiment is STM32FP03, and CPU is RK3066 or RK3188, and the chip of digital signal sending module is TLCCV220, and the chip of digital signal reception module is TLCCV219.
Above embodiment is only for illustrating the present invention, but not limitation of the present invention, person skilled in the relevant technique, in the situation that do not depart from the spirit and scope of invention, can also make a variety of changes and be out of shape, therefore all technical schemes that are equal to also belong to category of the present invention.
Claims (10)
1. a separation type car-mounted device, it is characterized in that, comprise basic processing unit and outside replaceable control unit, the replaceable control unit of described basic processing unit and described outside is separated from each other, and described basic processing unit is connected by digital signal transmission line with the replaceable control unit in described outside.
2. a kind of separation type car-mounted device according to claim 1, is characterized in that, described digital signal transmission line is that a pair of differential signal twisted-pair feeder or a pair of differential signal twisted-pair feeder add some control signal wires.
3. a kind of separation type car-mounted device according to claim 2, is characterized in that, the control signal wire between the treater of the replaceable control unit of described basic processing unit and described outside can be serial ports or
or SPI or USB transmission line.
4. a kind of separation type car-mounted device according to claim 2, is characterized in that, the audio-video signal of the replaceable control unit in described outside sends to basic processing unit end by a pair of differential signal line and processes.
5. according to a kind of separation type car-mounted device one of claim 3 or 4 Suo Shu, it is characterized in that, control signal between the treater of the replaceable control unit of described basic processing unit and described outside both can individual transmission, also can was bundled in differential signal line and be transmitted by digital signal sending module.
6. a kind of separation type car-mounted device according to claim 1, is characterized in that, described basic processing unit comprises micro controller system, peripheral apparatus, digital signal reception module, switch unit, display module and power amplifier module.
7. a kind of separation type car-mounted device according to claim 6, it is characterized in that, described peripheral apparatus comprises any or several combination in GPS module, automobile CAN-bus module, bluetooth module, radio receiver module, vehicle-carrying DVD module, back up rearview mirror module, digital television module.
8. a kind of separation type car-mounted device according to claim 6, is characterized in that, described peripheral apparatus also comprises Display panel screen, panel button and touch-screen.
9. a kind of separation type car-mounted device according to claim 1, is characterized in that, described outside replaceable units comprises any or several combination in CPU, memory modules, memory module and interface module, digital signal sending module.
10. a kind of separation type car-mounted device according to claim 9, is characterized in that, described interface module comprises SD card interface and/or USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450624.9A CN103538530A (en) | 2013-09-29 | 2013-09-29 | Separated vehicle-mounted device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450624.9A CN103538530A (en) | 2013-09-29 | 2013-09-29 | Separated vehicle-mounted device |
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| CN103538530A true CN103538530A (en) | 2014-01-29 |
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| CN201310450624.9A Pending CN103538530A (en) | 2013-09-29 | 2013-09-29 | Separated vehicle-mounted device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105912360A (en) * | 2016-04-07 | 2016-08-31 | 乐视控股（北京）有限公司 | Vehicle-mounted system expansion board, vehicle-mounted system and application method thereof |
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| WO2005009798A1 (en) * | 2003-07-17 | 2005-02-03 | Valeo Systemes Thermiques | Control device for a motor vehicle |
| CN1808067A (en) * | 2006-01-18 | 2006-07-26 | 广东瑞图万方科技有限公司 | Embedded vehicle-mounted navigation device |
| CN201432631Y (en) * | 2009-05-15 | 2010-03-31 | 深圳市振潍科技有限公司 | Vehicular electronic device upgrading device, vehicular electronic system and automobile |
| WO2010149318A1 (en) * | 2009-06-26 | 2010-12-29 | Honeywell Technologies Sarl | Input/output unit |
| CN103204114A (en) * | 2012-01-17 | 2013-07-17 | 湖南纽曼数码科技有限公司 | Multisystem vehicle-mounted equipment and use method thereof |
-
2013
- 2013-09-29 CN CN201310450624.9A patent/CN103538530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005009798A1 (en) * | 2003-07-17 | 2005-02-03 | Valeo Systemes Thermiques | Control device for a motor vehicle |
| CN1808067A (en) * | 2006-01-18 | 2006-07-26 | 广东瑞图万方科技有限公司 | Embedded vehicle-mounted navigation device |
| CN201432631Y (en) * | 2009-05-15 | 2010-03-31 | 深圳市振潍科技有限公司 | Vehicular electronic device upgrading device, vehicular electronic system and automobile |
| WO2010149318A1 (en) * | 2009-06-26 | 2010-12-29 | Honeywell Technologies Sarl | Input/output unit |
| CN103204114A (en) * | 2012-01-17 | 2013-07-17 | 湖南纽曼数码科技有限公司 | Multisystem vehicle-mounted equipment and use method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105912360A (en) * | 2016-04-07 | 2016-08-31 | 乐视控股（北京）有限公司 | Vehicle-mounted system expansion board, vehicle-mounted system and application method thereof |
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Application publication date: 20140129 |