CN2719669Y - Automobile recreational video-audio controller - Google Patents

Abstract

The utility model relates to a recreational video-audio controller for automobiles, which is characterized in that the recreational video-audio controller for automobiles is composed of a high-speed video microprocessor and a peripheral unit circuit. The recreational video-audio controller for automobiles adopts a VirgineG2 chip as the core of the high-speed video microprocessor, and can uniformly control and adjust liquid crystal displays, video optical disks, backing back sight, frequency modulation/medium waves, and a vehicle carried TV. Installation space and the difficulty of wiring in installation are reduced, the functions are arranged according to Chinese people's habits and preference, and graphical interfaces, Chinese characters, and individual icons are used for guiding users to operate the system. The arrangement of humanized panel pressing keys takes full consideration of convenient and rapid use for users, and the keys and display interfaces are all provided with Chinese character, so the utility model has convenient operation.

Description

Automobile entertainment audiovisual controller

Technical field

The utility model relates to vehicle-mounted audio-visual products, the controller of automobile entertainment audiovisual specifically.

Background technology

Vehicle-mounted audio-visual products in the market is of a great variety, but mostly is traditional single DIN structure, can only satisfy the function of radio reception and music basically, the following weak point of their ubiquities:

1, single DIN structure is only as the control part and the broadcast reception part of total system;

Man-machine interaction when 2, operating has only the display capabilities of field character and english information, uses inconvenient;

3, panel button operation and function setting are loaded down with trivial details, complicated, and clear and definite prompting can't be provided;

4, can't receive and displaying video programs, as in-car TV, video disc, Digital video disc etc.;

5, do not have video display unit (VDU),, then must be equipped with telltale in addition if need in car, view and admire video frequency program;

6, each functional unit of system only is simply to synthesize, and must cause system to install and disperse, takes up room greatly, and system is all made troubles in installation, signal connection, car load wiring;

7, the simple synthetic of each functional module must bring control and operational wordy, inconvenient;

The vehicle-mounted audiovisual entertaining system of two DIN structures that also has some foreign vendors to produce on the market though these products become one each functional module and liquid crystal display, has following inconvenience for the demestic user:

1, English operation interface is not easy to Chinese user and uses;

2, operation mode, function setting do not meet Chinese custom;

3, mostly be the vision signal input pattern of TSC-system formula, incompatible with the pal mode of China;

4, built-in function is fixed, and is not easy to expand.

5, cost an arm and a leg, certainly will improve the car load cost.

Summary of the invention

The purpose of this utility model is: it is that the VirgineG2 chip is a core that a kind of at high speed video microprocessor is provided, and Liquid Crystal Display (LCD), video disc/audio frequency cd, vehicle backing backsight, frequency modulation/medium wave, in-car TV is carried out the automobile entertainment audiovisual controller of uniform dispatching.

The technical solution that realizes above-mentioned purpose is as follows:

Useful technique effect of the present utility model is embodied in following several aspect:

1, with two DIN structures, in-car TV reception, broadcast reception, GPS, liquid crystal display etc. are become one, significantly reduced the difficulty of installing space and installation wiring;

2, have abundant signal source, be built-in with in-car TV, broadcasting, GPS; Can external video disc, Digital video disc, vehicle backing backsight camera, the standard interface of Yu Liuing can be expanded functions such as MP3, Vehicular intelligent control bus simultaneously, allowing the driving travelling become light, satisfied;

3, the video superimpose interactive interface with input picture, color graphics, Chinese character and character shows.The mode of operation of system is presented in face of the passenger with complete Chinese graphical interfaces.The information of necessity such as the Chinese that shows on the liquid crystal display, numeral, indication small icon is superimposed upon and shows on static background image or the video image, the user can regulate satisfied sound equipment state, image display effect more directly perceived, more easily, switches between states such as in-car TV, broadcasting, video disc more quickly.

No matter 4 is TSC-system formula or pal mode vision signal, system all can detect and discern automatically;

5, the panel button setting of hommization takes into full account user's environment for use, easy to use, quick, all is printed on Chinese character on button, is provided with some salient points simultaneously on different buttons, locating point, convenient user's operation.

6, be provided with the line traffic control function, line traffic control can be placed on the back seat of automobile, be convenient to the rear rider switching signal source, regulate volume and search functions such as platform.

Description of drawings

Fig. 1 is an automobile entertainment audiovisual controller circuitry block diagram,

Fig. 2 is a VG2 chip controls peripheral interface structured flowchart,

Fig. 3 is VG2 initialization and startup flash interface element circuit,

Fig. 4 is the interface unit circuit of driving Liquid Crystal Display (LCD),

Fig. 5 is an image data storage interface unit circuit,

Fig. 6 is the synchronous dynamic storage unit circuit of the maximum 8M byte of support,

Fig. 7 is a frame buffer memory interface unit circuit,

Fig. 8 is that the control interface unit is selected in VG2 chip signal source,

Fig. 9 is the left and right acoustic channels audio interface unit circuit of four road video control interface unit, four road videos,

Figure 10 is a keyboard matrix control interface element circuit,

Figure 11 is on-line debugging, communication serial bus interface element circuit.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Embodiment:

This controller at high speed video microprocessor is the VirgineG2 chip, and abbreviation VG2 is a core, and Liquid Crystal Display (LCD), video disc/audio frequency cd, vehicle backing backsight, frequency modulation/medium wave, in-car TV are carried out uniform dispatching and control, sees Fig. 1.

The VG2 chip is produced by Korea S Adc Inc..This chip functions is powerful, and its collection video, audio frequency are treated to all over the body, and inside has comprised an X-Y scheme accelerator based on the 3-D graphic algorithm; Also embedded 8/16 audio engine of one 32 passage.The characteristics of VG2 chip are: it has been embedded in multiple peripheral hardwares such as digital video analog converter, dynamic storage controller, direct memory addressing, timer, two serial ports, makes the design of external circuit become very easy, sees Fig. 2.

Initialization and start unit comprise the SST39VFD40 storage chip, the address bus of this chip, promptly 12-5,27,26,23,25,1 with 28 pin and VG2 chip the 9th, 11,13-15,18-26 pin be connected; Its data bus, promptly 13-15,17-20,21 are connected with 79 pin with the 70-75,78 of VG2 chip, realize that VG2 carries out the initialization setting to entire controller, see Fig. 3; The VG2 chip carries out the initialization setting by the program of calling in a slice SST39VFD40 flash chip to The whole control system, and the various figures, the image that call simultaneously in the flash memory manifest in liquid crystal display.

The interface unit that drives Liquid Crystal Display (LCD) comprises KA2198 screen overlap-add procedure chip and CD4053 analog switch chip; The VG2 chip video is handled output interface---and " interface of Liquid Crystal Display (LCD) makes video image normally show in telltale to drive 6.5.The 132nd, 135 of VG2 chip is connected with the 2nd, 3,4 pin of KA2198 chip with 138 pin, see Fig. 4 (a), be used to transmit the red, green, blue tristimulus signals, the 20th of KA2198 chip is connected with the tripod of CD4053 chip, CD4053B is that to be used for discerning automatically video be pal mode, still TSC-system formula, and the switching between operation interface and the image, vision signal is exported to Liquid Crystal Display (LCD) (seeing Fig. 4 b) from CD4053B the 4th pin.

The image data storage interface unit comprises the SST39VF160 storage chip, the address bus of this SST39VF160 storage chip, promptly the 9th, 11 of 25-18,8-1,48,18-20 and VG2 chip, 13-15,18-29,32-36 pin be connected; The data bus of this SST39VF160 storage chip, promptly the 29th, 31,33,35,38,40,42,44,30,32,34,36,39,41,43,45 pin are connected (see figure 5) with 70-75, the 78-87 pin of VG2 chip;

The synchronous dynamic memory cell of supporting maximum 8M byte is the video frame images memory device, it is the K4S6416320 storage chip, the address bus the 35th of K4S6416320 storage chip, 34-29,26-22 pin are connected with VG2 chip the 181st, 183-193 pin, and VG2 the 178th, 179 pin are selected port as the rank addresses of video frame images memory device; The data bus the 2nd, 4,5,7,8,10,11,13,42,44,45,47,48,50,51,53 of K4S6416320 storage chip is connected with VG2 158-162,165-175 pin, sees Fig. 6.

Frame buffer memory interface unit comprises the video texture video memory, it is the K4S6416320 storage chip, address bus 22-26, the 29-35 of K4S6416320 storage chip is connected with VG2 chip the 220th, 222,223,226-234 pin, VG2 chip the 217th, 218 pin are selected port as the rank addresses of video texture video memory, the data bus the 2nd, 4,5,7,8,10,11,13,42,44,45,47,48,50,51,53 of K4S6416320 storage chip is connected with VG2 chip 196-202,205-208,211-215 pin, sees Fig. 7;

Signal source is selected the control interface unit, be that the VG2 chip has 32 input/output ports, promptly VG2 chip the 88th, 89,91-120 pin are seen Fig. 8, as the control PORT COM to external device, automobile entertainment audiovisual controller is finished the control of total system by these ports.

Four road video control interface unit comprise CD4052 (item is U26A) analog switch chip, U26A (CD4052) chip the 9th, 10 pin are connected with the 110th, 111 pin of VG2 chip, the left and right acoustic channels audio interface unit of four road videos comprises CD4052 (item is U27A) analog switch chip, U27A (CD4052) chip the 9th, 10 pin are connected with the 110th, 111 pin of VG2 chip, see Fig. 9; Promptly four road videos (in-car TV, video disc, vehicle backing backsight, digital video disk) input to U26A (CD4052) four and select an analog switch chip, are controlled the channel selecting of U26A (CD4052) chip by two peripheral input/output ports of the 110th, 111 pin of VG2.The left and right acoustic channels audio frequency of four road videos inputs to U27A (CD4052) four and selects an analog switch chip, also control the voice-grade channel selection of U27A (CD4052), make video, audio frequency be consistent by two peripheral input/output ports of the 110th, 111 pin of VG2 chip.

Keyboard matrix control interface unit comprises 74L,S08 two input ends four and a gate logic chip and 7,4LS,373 eight a D lock device, the line output interface of 4 * 6 key-press matrixs is connected with the 1st, 2,4,5 pin of 74LS08 chip, and the 8th pin mouth of 74LS08 chip is connected with the 113rd pin of VG2 chip; The row output interface of key-press matrix is connected with the 2nd, 5,6,9,13,14 of 74LS373 chip, and the 3rd, 4,7,8,12,15 pin of 74LS373 chip are connected with the data bus 70-75 pin of VG2 chip, see Figure 10.Key-press matrix identification, control are correctly understood the function of user by the required realization of operation of various buttons on the panel with this.The line output interface of key-press matrix inputs to U24A (74LS08) chip, is connected with the 113rd pin of VG2 chip, by the monitoring of VG2 chip, scanning key-press matrix again; The row output interface of key-press matrix inputs to U21 (74LS373) eight D lock and sends out device, is connected with data bus the 70th～75 pin of VG2 chip, by the monitoring of VG2 chip, scanning key-press matrix again.

On-line debugging, communication serial bus interface unit comprise MAX232 communication level transferring chip, MAX232 chip the 7th, 8,13,14 pin connect debugging, communication signal input, and MAX232 chip conversion back the 9th, 10,11,12 pin are connected output with VG2 chip 122-125 pin; Realize on-line debugging, communication function, see Figure 11; Can be implemented in wire system debugging and online information communication function by serial port.

Platform, the channel selection control input interface of searching of in-car TV is connected with peripheral input/output port the 97th, 98 pin of VG2 chip; The VG2 chip flows to in-car TV with control signal again according to user operation, and that realizes in-car TV searches functions such as platform, channel selection.

The liquid crystal module screen display menu is adjusted, control signal (comprising functions such as switchboard, brightness of image, contrast ratio, color saturation adjustment, menu) interface directly is connected with VG2 chip the 99th, 102,103,104,32,33 pin; When the switchboard on user's guidance panel, menu key, after VG2 monitors actuation of keys, again control signal is flowed to the liquid crystal display module.

Vehicle control bus interface is connected with VG2 chip periphery input and output the 34th, 35 pin.The VG2 chip can be supported outside expansion bus interface.The Vehicular intelligent control bus promptly comes oil circuit, circuit, centrally controrlled locking system, Car Burglar Alarm to institute's loading vehicles to carry out omnidistance Based Intelligent Control by this interface.

The principle of work of this device is as follows:

After the 1 energising start, VG2 resets and comes initialization automobile entertainment audiovisual controller system according to the information among initialization and the startup flash memory SST39VF040;

2 according to system initial state information, and 4 in the selected cell circuit of VG2 control signal source selects 1 analog switch chip CD4052, selects the input system of one road signal source;

3 signal sources comprise video, audio frequency two parts, after the signal source input system, are divided into two-way, and one the road delivers to video processing, the control unit in the system, and one the road delivers to audio frequency processing, the control unit in the system;

4 vision signals input to video processing, the control unit circuit on the control desk, and VG2 calls the respective icon that has been stored in advance among the picture flash memory SST39VF160 according to the type of incoming video signal;

By video superimpose chip KA2198 the Status icons of signal source is added on the video image in 5 video processing, the control unit circuit;

Vision signal after 6 stacks inputs in the liquid crystal display circuit after the standard of video discerned automatically through analog switch chip CD4053 again, by the liquid crystal display circuit video image is shown on liquid crystal display, plays;

Export automobile product sound equipment power amplifier to behind the audio frequency process audio control circuit unit of 7 signal sources, reach four loud speakers all around in the automobile again.

8 if this moment, the user selected is the radio reception state, and then VG2 will call control, the display interface under the radio reception state from picture flash memory SST39VF160.In the interface, demonstrate radio reception state, radio reception prestore platform frequency and the function when showing this button at the radio reception state on the read-out on panel button limit;

9 if what play this moment is the audio frequency cd video disc, then VG2 will be from the picture flash memory SST39VF160 call control, display interface under the audio frequency cd state.In the interface, demonstrate audio frequency cd video disc single bent number, single reproduction time etc., the function when showing this button at the audio frequency cd state on the read-out on panel button limit, for example audio, volume ...;

10 if play this moment be the video disc video disc time, VG2 at first from the picture flash memory SST39VF160 state interface of video disc is accessed, show the position in video disc total time, total song, the place disc player dish box, and the Chinese prompt of each function button under this state.

11 users operate native system, and during certain button on pressing lower faceplate, system sends button place ranks information to VG2 after sending out device by 74L,S08 two input ends four and gate logic chip and 7,4LS,373 eight D lock; After VG2 detects key information, analyze the cooresponding function of this button under present system state of living in, this state immediately, send instruction for again the correlation unit circuit, finish the button function corresponding.

Claims (1)

1, automobile entertainment audiovisual controller is characterized in that: be made up of high-speed video microprocessor and peripheral cell circuit, described high-speed video microprocessor is the VirgineG2 chip, is called for short the VG2 chip; The annexation of peripheral cell circuit and VG2 is as follows:

A, initialization and start unit comprise the SST39VFD40 storage chip, the address bus of this chip, promptly 12-5,27,26,23,25,1 with 28 pin and VG2 chip the 9th, 11,13-15,18-26 pin be connected; Its data bus, promptly 13-15,17-20,21 are connected with 79 pin with the 70-75,78 of VG2 chip, realize that VG2 carries out the initialization setting to entire controller;

The interface unit of B, driving Liquid Crystal Display (LCD) comprises KA2198 screen overlap-add procedure chip and CD4053 analog switch chip; The 132nd, 135 of VG2 chip is connected with the 2nd, 3,4 pin of KA2198 chip with 138 pin, is used to transmit the red, green, blue tristimulus signals, and the 20th pin of KA2198 chip is connected with the 3rd pin of CD4053 chip, is used for discerning video formats;

C, image data storage interface unit comprise the SST39VF160 storage chip, the address bus of this SST39VF160 storage chip, promptly the 9th, 11 of 25-18,8-1,48,18-20 pin and VG2 chip, 13-15,18-29,32-36 pin be connected; The data bus of this SST39VF160 storage chip, promptly the 29th, 31,33,35,38,40,42,44,30,32,34,36,39,41,43,45 pin are connected with 70-75, the 78-87 pin of VG2 chip;

The synchronous dynamic memory cell of D, the maximum 8M byte of support comprises the video frame images memory device, it is the K4S6416320 storage chip, the address bus the 35th of K4S6416320 storage chip, 34-29,26-22 pin are connected with VG2 chip the 181st, 183-193 pin, and VG2 the 178th, 179 pin are selected port as the rank addresses of video frame images memory device; Data bus the 2nd, 4,5,7,8,10,11,13,42,44,45,47,48,50,51,53 pin of K4S6416320 storage chip are connected with VG2 158-162,165-175 pin;

E, frame buffer memory interface unit comprise the video texture video memory, it is the K4S6416320 storage chip, the address bus 22-26 of K4S6416320 storage chip, 29-35 pin are connected with VG2 chip the 220th, 222,223,226-234 pin, VG2 chip the 217th, 218 pin are selected port as the rank addresses of video texture video memory, and data bus the 2nd, 4,5,7,8,10,11,13,42,44,45,47,48,50,51,53 pin of K4S6416320 storage chip are connected with VG2 chip 196-202,205-208,211-215 pin;

F, signal source are selected the control interface unit, and promptly the VG2 chip has 32 input/output ports, i.e. VG2 chip the 88th, 89,91-120 pin;

G, four road video control interface unit comprise CD4052 (item is U26A) analog switch chip, and U26A (CD4052) chip the 9th, 10 pin are connected with the 110th, 111 pin of VG2 chip; The left and right acoustic channels audio interface unit of four road videos comprises CD4052 (item is U27A) analog switch chip, and U27A (CD4052) chip the 9th, 10 pin are connected with the 110th, 111 pin of VG2 chip;

H, keyboard matrix control interface unit comprise 74L,S08 two input ends four and a gate logic chip and 7,4LS,373 eight a D lock device, the line output interface of 4 * 6 key-press matrixs is connected with the 1st, 2,4,5 pin of 74LS08 chip, and the 8th pin mouth of 74LS08 chip is connected with the 113rd pin of VG2 chip; The row output interface of key-press matrix is connected with the 2nd, 5,6,9,13,14 of 74LS373 chip, and the 3rd, 4,7,8,12,15 pin of 74LS373 chip are connected with the data bus 70-75 pin of VG2 chip;

I, on-line debugging, communication serial bus interface unit comprise MAX232 communication level transferring chip, MAX232 chip the 7th, 8,13,14 pin connect debugging, communication signal input, and MAX232 chip conversion back the 9th, 10,11,12 pin are connected output with VG2 chip 122-125 pin; Realize on-line debugging, communication function;

Platform, the channel selection control input interface of searching of J, in-car TV is connected with peripheral input/output port the 97th, 98 pin of VG2 chip; The liquid crystal module screen display menu is adjusted, the control signal input interface is connected with VG2 chip the 99th, 102,103,104,32,33 pin;

K, vehicle control bus interface are connected with VG2 chip periphery input and output the 34th, 35 pin.

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