CN102368382A

CN102368382A - Vehicular LCD (Liquid Crystal Display) imitation screen

Info

Publication number: CN102368382A
Application number: CN2011103978402A
Authority: CN
Inventors: 刘斌; 王俊平; 王成群; 阚彩云; 王风顺
Original assignee: Tianjin Jintian Temperature Instrument Science & Technology Co Ltd
Current assignee: Tianjin Jintian Temperature Instrument Science & Technology Co Ltd
Priority date: 2011-12-05
Filing date: 2011-12-05
Publication date: 2012-03-07
Anticipated expiration: 2031-12-05
Also published as: CN102368382B

Abstract

The invention relates to a vehicle-used LCD (Liquid Crystal Display) imitation screen. According to the imitation screen, the mounting size and weight of components are reduced, a small uncomplicated electrical system is used and individual components are combined to reduce the total number of the components; mechanical joints between an instrument board and a vehicle are reduced by adopting more reliable components so as to reduce maintenance to the maximum degree; and a display method is modified to bring convenience to the internal distribution of the instrument board and the connection among sensors. The LCD imitation screen has the following advantages that: 1, digitization of the basic information of the vehicle and standardization of the information transmission of the vehicle are realized; 2, the instrument board of the vehicle is simplified and the size of the instrument board is reduced; 3, multimedia and entertainment functions of the vehicle are increased; and 4, the LCD imitation screen is convenient and safe to operate and simplified in maintenance.

Description

The automobile-used imitation screen of LCD

Technical field

The present invention relates to a kind of 10 inch or automobile-used imitation screen of 14 inch LCD that automobile shows various power electricity data of operating vehicle condition and signal that be used for.

Background technology

Automobile adopts traditional electromechanical to show at present, comprises tachometer gage, speed/mileometer, fuel gauge, bayonet gauge, thermometer and a large amount of signal lamp.What instrument panel was mainly considered when design is driver's human factor and the physical location of part on instrument panel.Require designer's this limited sites on instrument panel that the dozens of parts are installed.The volume of a typical panel board inner room is approximately 0.015m ³, about 65% is used for installing machinery and carries out part (comprising panel board and radio etc.) in the area of panel board inner room, and 12% is used to install electric device, and 2% is used to install lead.These numerals have also comprised the equispaced about about 10mm between the part.Like this, approximately have only 20% position that support, the carriage of part is installed and reserve essential maintenance position.This shows that the panel board inner room is quite full.

Summary of the invention

In view of the deficiency that prior art exists, the invention provides a kind of automobile-used imitation screen of LCD that automobile shows various power electricity data of operating vehicle condition and signal that is used for.Installation dimension and the weight of this imitation screen through reducing part is used more small-sized not too complicated electrical system, single part is merged, to reduce the total quantity of part; Adopt part more reliably, reduce the mechanical contacts between instrument panel and the automobile, to reduce maintaining to greatest extent; Improve display packing, being connected etc. between the layout of giving the panel board inner room and each sensor brings convenience.

The present invention is for realizing above-mentioned purpose; The technical scheme of being taked is: the automobile-used imitation screen of a kind of LCD; It is characterized in that: comprise three gating chip U1; U2; U3; Also comprise amplifying circuit U4; A/D change-over circuit U5; Calculation function chip U6; EEPROM U7; Single-chip microcomputer U8 and LCD main display board Y; Vehicle right and left steering indicating light signal; The long-and-short distant light signal; Braking warning lamp signal; The backup lamp signal; The fog lamp signal; Offside door does not close cue and connects resistance R 2 respectively; R1; R3; R4; R5; R6; R7; The end of R8; Resistance R 2; R1; R3; R4; R5; R6; R7; The other end of R8 respectively with 1 pin of gating chip U1; 2 pin; 4 pin; 5 pin; 12 pin; 13 pin; 14 pin; 15 pin are connected; 7 pin of gating chip U1 are received power supply negative terminal; 16 pin are received power positive end; 3 pin of gating chip U1; 9 pin; 10 pin; 11 pin respectively with 16 pin of single-chip microcomputer U8; 10 pin; 11 pin; 12 pin are connected; And 3 pin of gating chip U1 are connected with 3 pin of gating chip U2; 6 pin of gating chip U1; 8 pin respectively with 6 pin of gating chip U2; 8 pin connect ground connection simultaneously; The automobile offside door does not close cue; Driver safety warning lamp signal; The braking anti-lock signal; Fuel tank fuel quantity hangs down the warning lamp signal; The Oil pressure warning light signal; The charging indicator light signal; Gear pilot lamp signal connects resistance R 9 respectively; R10; R11; R12; R13; R14; The end of R15; Resistance R 9; R10; R11; R12; R13; R14; The other end of R15 respectively with 1 pin of gating chip U2; 2 pin; 4 pin; 5 pin; 12 pin; 3 pin; 4 pin are connected; 7 pin of gating chip U2 are received power supply negative terminal; 16 pin of gating chip U2 are received power positive end; 9 pin of gating chip U2; 10 pin; 11 pin respectively with 28 pin of single-chip microcomputer U8; 4 pin; 5 pin connect; The tachometer gage signal; The reometer signal; The voltage table signal; The oil manometer signal; Fuel liquid level table signal; The water-thermometer signal is connected respectively to 1 pin of gating chip U3; 2 pin; 4 pin; 5 pin; 12 pin; 13 pin; 7 pin of gating chip U3 are received power supply negative terminal; 16 pin of gating chip U3 are received power positive end; 6 pin of gating chip U3; 8 pin; 14 pin; 15 pin are ground connection simultaneously; 9 pin of gating chip U3; 10 pin; 11 pin respectively with 25 pin of single-chip microcomputer U8; 26 pin; 27 pin connect; 3 pin of gating chip U3 are connected with 2 pin of amplifier U4; 3 pin of amplifier U4 connect an end of resistance R 17; The other end of resistance R 17 respectively with 1 pin of storer U7; 2 pin; 3 pin; 10 pin of 4 pin and A/D conversion chip U5; 24 pin are received together and ground connection; 6 pin of amplifier U4 are connected with an end of resistance R 18; The other end of resistance R 18 is received 9 pin of A/D conversion chip U5; 5 pin of storer U7; 6 pin; 7 pin are received 1 pin of singlechip chip U8 respectively; 2 pin; 3 pin; 8 pin of storer U7 connect positive source; The end of the 11 pin connecting resistance R19 of A/D conversion chip U5 and an end of capacitor C 1 also connect positive 5 volts of power supplys simultaneously; The end of the other end connecting resistance R20 of

resistance R

19 and 2 pin of A/D conversion chip U5; The other end of capacitor C 1 is connected with the other end of resistance R 20; 1 pin of A/D conversion chip U5 is connected with an end of capacitor C 2 to connect simultaneously bears 5 volts of power supplys; 3 pin of another termination U5 of capacitor C 2 and an end of resistance R 21; The negative pole of another terminating diode D1 of resistance R 21; The positive pole of diode D1 connects an end of capacitor C 3 and 4 pin of A/D conversion chip U5; One end of another termination capacitor C 4 of capacitor C 3 and an end of resistance R 22; 5 pin of another termination A/D change-over circuit U5 of capacitor C 4; 6 pin of another termination A/D change-over circuit U5 of resistance R 22; 7 pin of A/D conversion chip U5; 8 pin are received the two ends of capacitor C 5 respectively; 21 pin of A/D change-over circuit U5; 22 pin; 23 pin are received 13 pin of single-chip microcomputer U8 respectively; 15 pin; 6 pin; 22 pin wherein also connect 6 pin of arithmetical unit U6; 16 pin of arithmetical unit U6 connect positive source; 8 pin of arithmetical unit U6 and 11 pin are ground connection simultaneously; 10 pin are connected with 30 pin of single-chip microcomputer U8; 20 pin of single-chip microcomputer U8 connect power cathode; 31 pin connect positive source; 18 pin of single-chip microcomputer U8 connect the end of crystal oscillator Y1 and an end of capacitor C 6; One end and the ground connection of another termination capacitor C 7 of capacitor C 6; The other end of another termination crystal oscillator Y1 of capacitor C 7 and 19 pin of single-chip microcomputer U8; 7 pin of single-chip microcomputer U8; 8 pin; 9 pin; 14 pin; 29 pin; 21 pin; 22 pin; 23 pin; 24 pin; 32 pin; 33 pin; 34 pin; 35 pin; 36 pin; 37 pin; 38 pin; 39 pin; 40 pin are connecting resistance R39 respectively; R38; R37; R36; R35; R34; R33; R32; R31; R30; R29; R28; R27; R26; R25; R24; R23; The end of R16; Resistance R 38; R37; R36; R35; R34; R33; R32; R31; R30; R29; R28; R27; R26; R25; R24; R23; The other end of R16 connects the dipped headlights on the display panel respectively; High beam; Fog lamp; Backup lamp; The brake system warning lamp; The right turn lamp; The left steering lamp; The anti-lock braking system warning lamp; The engine oil pressure pilot lamp; Charging indicator light; The driver safety warning lamp; The too high alarm lamp of water temperature; The car door warning lamp; Voltage table; Tachometer gage; The fuel liquid level table; Water-thermometer; The other end of resistance R 39 is received 1 pin of gear indicator cock S1; 2 pin of gear indicator cock S1; 3 pin; 4 pin; 5 pin; 6 pin; 7 pin are received on the gear pilot lamp, the speedometer of the received impulse signal display panel of sensor L in the variator.

The invention has the beneficial effects as follows:

1. realize the digitizing of automobile essential information, realized the Automotive Information Transmission standardization.

2. simplify automobile instrument panel, dwindled the panel board size.

3. car multimedia and amusement function have been increased.

4. easy to operate, safety, simplified maintenance.

Description of drawings

Fig. 1 is that circuit of the present invention connects block diagram.

Fig. 2 is circuit theory diagrams of the present invention.

Embodiment

As shown in Figure 1; The automobile-used imitation screen of a kind of LCD; Comprise three gating chip U1; U2; U3; Also comprise amplifying circuit U4; A/D change-over circuit U5; Calculation function chip U6; EEPROM U7; Single-chip microcomputer U8 and LCD main display board Y; Vehicle right and left steering indicating light signal; The long-and-short distant light signal; Braking warning lamp signal; The backup lamp signal; The fog lamp signal; Offside door does not close cue and connects resistance R 2 respectively; R1; R3; R4; R5; R6; R7; The end of R8; Resistance R 2; R1; R3; R4; R5; R6; R7; The other end of R8 respectively with 1 pin of gating chip U1; 2 pin; 4 pin; 5 pin; 12 pin; 13 pin; 14 pin; 15 pin are connected; 7 pin of gating chip U1 are received power supply negative terminal; 16 pin are received power positive end; 3 pin of gating chip U1; 9 pin; 10 pin; 11 pin respectively with 16 pin of single-chip microcomputer U8; 10 pin; 11 pin; 12 pin are connected; And 3 pin of gating chip U1 are connected with 3 pin of gating chip U2; 6 pin of gating chip U1; 8 pin respectively with 6 pin of gating chip U2; 8 pin connect ground connection simultaneously; The automobile offside door does not close cue; Driver safety warning lamp signal; The braking anti-lock signal; Fuel tank fuel quantity hangs down the warning lamp signal; The Oil pressure warning light signal; The charging indicator light signal; Gear pilot lamp signal connects resistance R 9 respectively; R10; R11; R12; R13; R14; The end of R15; Resistance R 9; R10; R11; R12; R13; R14; The other end of R15 respectively with 1 pin of gating chip U2; 2 pin; 4 pin; 5 pin; 12 pin; 3 pin; 4 pin are connected; 7 pin of gating chip U2 are received power supply negative terminal; 16 pin of gating chip U2 are received power positive end; 9 pin of gating chip U2; 10 pin; 11 pin respectively with 28 pin of single-chip microcomputer U8; 4 pin; 5 pin connect; The tachometer gage signal; The reometer signal; The voltage table signal; The oil manometer signal; Fuel liquid level table signal; The water-thermometer signal is connected respectively to 1 pin of gating chip U3; 2 pin; 4 pin; 5 pin; 12 pin; 13 pin; 7 pin of gating chip U3 are received power supply negative terminal; 16 pin of gating chip U3 are received power positive end; 6 pin of gating chip U3; 8 pin; 14 pin; 15 pin are ground connection simultaneously; 9 pin of gating chip U3; 10 pin; 11 pin respectively with 25 pin of single-chip microcomputer U8; 26 pin; 27 pin connect; 3 pin of gating chip U3 are connected with 2 pin of amplifier U4; 3 pin of amplifier U4 connect an end of resistance R 17; The other end of resistance R 17 respectively with 1 pin of storer U7; 2 pin; 3 pin; 10 pin of 4 pin and A/D conversion chip U5; 24 pin are received together and ground connection; 6 pin of amplifier U4 are connected with an end of resistance R 18; The other end of resistance R 18 is received 9 pin of A/D conversion chip U5; 5 pin of storer U7; 6 pin; 7 pin are received 1 pin of singlechip chip U8 respectively; 2 pin; 3 pin; 8 pin of storer U7 connect positive source; The end of the 11 pin connecting resistance R19 of A/D conversion chip U5 and an end of capacitor C 1 also connect positive 5 volts of power supplys simultaneously; The end of the other end connecting resistance R20 of

resistance R

Principle of work: like Fig. 1, shown in 2; Each road input signal is by three gating chip U1, U2, U3 gating; Six groups of signals such as fuel liquid level table, oil manometer, thermometer, reometer, voltage table, tachometer gage belong to the analog quantity input, through gating chip U3 gating-amplifying circuit U4 amplification-A/D conversion chip U5 conversion-single-chip microcomputer U8 data processing-LCD main display board Y display image and data; Other signals all belong to switching value, do not have to amplify and the A/D converse routine, behind gating chip U1 or the U2 gating directly by single-chip microcomputer U8 data processing-LCD main display board Y display graphics; Sensor L output pulse signal in the speedometer need not through other data-switching just directly by single-chip microcomputer U8 deal with data-LCD main display board Y display digit again.Gear indication also is that switching value need not through other data-switching again, and working routine is fairly simple just directly by LCD main display board Y deal with data-LCD display image.In order to realize these functions, can adopt the inner program (using the C language) of direct display graphics of PLC trapezoidal pattern programming method (software realization figure module) and single-chip microcomputer.

Gating chip U1, U2, U3 model are 4051, and amplifying circuit U4 model is 358, and A/D conversion chip U5 model is 7135, and single-chip microcomputer U8 model is 89C52, and calculation function chip U6 model is 14040.

Claims

1. automobile-used imitation screen of LCD; It is characterized in that: comprise three gating chip U1; U2; U3; Also comprise amplifying circuit U4; A/D change-over circuit U5; Calculation function chip U6; EEPROM U7; Single-chip microcomputer U8 and LCD main display board Y; Vehicle right and left steering indicating light signal; The long-and-short distant light signal; Braking warning lamp signal; The backup lamp signal; The fog lamp signal; Offside door does not close cue and connects resistance R 2 respectively; R1; R3; R4; R5; R6; R7; The end of R8; Resistance R 2; R1; R3; R4; R5; R6; R7; The other end of R8 respectively with 1 pin of gating chip U1; 2 pin; 4 pin; 5 pin; 12 pin; 13 pin; 14 pin; 15 pin are connected; 7 pin of gating chip U1 are received power supply negative terminal; 16 pin are received power positive end; 3 pin of gating chip U1; 9 pin; 10 pin; 11 pin respectively with 16 pin of single-chip microcomputer U8; 10 pin; 11 pin; 12 pin are connected; And 3 pin of gating chip U1 are connected with 3 pin of gating chip U2; 6 pin of gating chip U1; 8 pin respectively with 6 pin of gating chip U2; 8 pin connect ground connection simultaneously; The automobile offside door does not close cue; Driver safety warning lamp signal; The braking anti-lock signal; Fuel tank fuel quantity hangs down the warning lamp signal; The Oil pressure warning light signal; The charging indicator light signal; Gear pilot lamp signal connects resistance R 9 respectively; R10; R11; R12; R13; R14; The end of R15; Resistance R 9; R10; R11; R12; R13; R14; The other end of R15 respectively with 1 pin of gating chip U2; 2 pin; 4 pin; 5 pin; 12 pin; 3 pin; 4 pin are connected; 7 pin of gating chip U2 are received power supply negative terminal; 16 pin of gating chip U2 are received power positive end; 9 pin of gating chip U2; 10 pin; 11 pin respectively with 28 pin of single-chip microcomputer U8; 4 pin; 5 pin connect; The tachometer gage signal; The reometer signal; The voltage table signal; The oil manometer signal; Fuel liquid level table signal; The water-thermometer signal is connected respectively to 1 pin of gating chip U3; 2 pin; 4 pin; 5 pin; 12 pin; 13 pin; 7 pin of gating chip U3 are received power supply negative terminal; 16 pin of gating chip U3 are received power positive end; 6 pin of gating chip U3; 8 pin; 14 pin; 15 pin are ground connection simultaneously; 9 pin of gating chip U3; 10 pin; 11 pin respectively with 25 pin of single-chip microcomputer U8; 26 pin; 27 pin connect; 3 pin of gating chip U3 are connected with 2 pin of amplifier U4; 3 pin of amplifier U4 connect an end of resistance R 17; The other end of resistance R 17 respectively with 1 pin of storer U7; 2 pin; 3 pin; 10 pin of 4 pin and A/D conversion chip U5; 24 pin are received together and ground connection; 6 pin of amplifier U4 are connected with an end of resistance R 18; The other end of resistance R 18 is received 9 pin of A/D conversion chip U5; 5 pin of storer U7; 6 pin; 7 pin are received 1 pin of singlechip chip U8 respectively; 2 pin; 3 pin; 8 pin of storer U7 connect positive source; The end of the 11 pin connecting resistance R19 of A/D conversion chip U5 and an end of capacitor C 1 also connect positive 5 volts of power supplys simultaneously; The end of the other end connecting resistance R20 of resistance R 19 and 2 pin of A/D conversion chip U5; The other end of capacitor C 1 is connected with the other end of resistance R 20; 1 pin of A/D conversion chip U5 is connected with an end of capacitor C 2 to connect simultaneously bears 5 volts of power supplys; 3 pin of another termination U5 of capacitor C 2 and an end of resistance R 21; The negative pole of another terminating diode D1 of resistance R 21; The positive pole of diode D1 connects an end of capacitor C 3 and 4 pin of A/D conversion chip U5; One end of another termination capacitor C 4 of capacitor C 3 and an end of resistance R 22; 5 pin of another termination A/D change-over circuit U5 of capacitor C 4; 6 pin of another termination A/D change-over circuit U5 of resistance R 22; 7 pin of A/D conversion chip U5; 8 pin are received the two ends of capacitor C 5 respectively; 21 pin of A/D change-over circuit U5; 22 pin; 23 pin are received 13 pin of single-chip microcomputer U8 respectively; 15 pin; 6 pin; 22 pin wherein also connect 6 pin of arithmetical unit U6; 16 pin of arithmetical unit U6 connect positive source; 8 pin of arithmetical unit U6 and 11 pin are ground connection simultaneously; 10 pin are connected with 30 pin of single-chip microcomputer U8; 20 pin of single-chip microcomputer U8 connect power cathode; 31 pin connect positive source; 18 pin of single-chip microcomputer U8 connect the end of crystal oscillator Y1 and an end of capacitor C 6; One end and the ground connection of another termination capacitor C 7 of capacitor C 6; The other end of another termination crystal oscillator Y1 of capacitor C 7 and 19 pin of single-chip microcomputer U8; 7 pin of single-chip microcomputer U8; 8 pin; 9 pin; 14 pin; 29 pin; 21 pin; 22 pin; 23 pin; 24 pin; 32 pin; 33 pin; 34 pin; 35 pin; 36 pin; 37 pin; 38 pin; 39 pin; 40 pin are connecting resistance R39 respectively; R38; R37; R36; R35; R34; R33; R32; R31; R30; R29; R28; R27; R26; R25; R24; R23; The end of R16; Resistance R 38; R37; R36; R35; R34; R33; R32; R31; R30; R29; R28; R27; R26; R25; R24; R23; The other end of R16 connects the dipped headlights on the display panel respectively; High beam; Fog lamp; Backup lamp; The brake system warning lamp; The right turn lamp; The left steering lamp; The anti-lock braking system warning lamp; The engine oil pressure pilot lamp; Charging indicator light; The driver safety warning lamp; The too high alarm lamp of water temperature; The car door warning lamp; Voltage table; Tachometer gage; The fuel liquid level table; Water-thermometer; The other end of resistance R 39 is received 1 pin of gear indicator cock S1; 2 pin of gear indicator cock S1; 3 pin; 4 pin; 5 pin; 6 pin; 7 pin are received on the gear pilot lamp, the speedometer of the received impulse signal display panel of sensor L in the variator.