CN102131330A - Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter - Google Patents
Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter Download PDFInfo
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- CN102131330A CN102131330A CN2011100064230A CN201110006423A CN102131330A CN 102131330 A CN102131330 A CN 102131330A CN 2011100064230 A CN2011100064230 A CN 2011100064230A CN 201110006423 A CN201110006423 A CN 201110006423A CN 102131330 A CN102131330 A CN 102131330A
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Abstract
The invention discloses a circuit system of an LED (light-emitting diode) display module of a solid-state vehicle meter. In the system, a power input terminal supplies power to a post-stage circuit through a primary voltage-regulating module and a secondary voltage-regulating module; a speed/rotating speed input filter shaping and frequency dividing module, an LED brightness adjustment input module and a serial communication module are respectively connected on a single-chip microprocessor (SCM) in parallel and respectively send signals to the SCM; after sampling and processing the signals, the SCM sends the signals to a speed/mileage/rotating speed module and an LED lamp so as to display speed, rotating speed, mileage and the like of a vehicle; power supply monitoring/resetting devices are connected between the secondary voltage-regulating end and the SCM; and an LED segment driver and an LED chip selection module are connected between the SCM and the LED lamp in parallel. The solid-state vehicle meter using the circuit system replaces the traditional pointer display mode so as to greatly improve reliability, thus being applicable to severe environments such as material handling, engineering machinery and the like.
Description
Technical field:
The present invention relates to a kind of Circuits System of LED display module, specifically, the present invention relates to a kind of Circuits System of solid-state vehicular meter LED display module.
Background technology:
The panel board of vehicle adopts pointer instrument mostly on the market now, indicate the travel speed of vehicle and rotating speed etc. by the rotation amplitude of pointer, because the instrument of this structure belongs to magnetoelectricity type structure, there is the movable device of more complicated inside, and produce, install and the maintenance more complicated, and reliability is poor, and application performance is poor under adverse circumstances such as material handling, engineering machinery, so be not suitable for the demand of development now.
Summary of the invention:
Technical problem to be solved by this invention provides a kind of Circuits System that can show the solid-state vehicular meter LED display module of vehicle operation parameter.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions.
The power input of the Circuits System of this solid-state vehicular meter LED display module is powered to late-class circuit by one-level Voltage stabilizing module, secondary Voltage stabilizing module, speed/rotating speed input filter shape and frequency division module, LED brightness regulation input module and serial communication module are connected in parallel on the single-chip microcomputer respectively, and signal sends single-chip microcomputer to separately, after single-chip microcomputer is sampled to signal and handled, signal is passed to speed/mileage/rotating speed module and LED lamp.
In order to guarantee circuit safety, monitoring power supply, power supply monitoring/resetting means in parallel between described secondary voltage stabilizing end and the single-chip microcomputer.
In order to show the speed/rotating speed of vehicle by the bright number of LED lamp, LED section in parallel drives and LED sheet modeling piece between described single-chip microcomputer and the LED lamp.
In order to guarantee to import the stable of power supply, power supply is leaded up to diode, the 23 resistance and is connected with the C end of the 6th triode in the described one-level Voltage stabilizing module, draw two circuit between diode and the 23 resistance, the 24 resistance of leading up to is connected with the C end of the 6th triode, another road is connected with the B end of the 6th triode by the 25 resistance, the E end of the 6th triode is for output and draw first capacity earth, the B end of the 6th triode is drawn the 4th voltage stabilizing didoe ground connection, draws piezo-resistance ground connection at power input.
For the power supply that makes input secure, input is connected with 1 port of second three terminal regulator in the described secondary Voltage stabilizing module, and draw the 11 capacity earth from input, 3 ports of second three terminal regulator are drawn two circuit, one the tunnel connects positive five volts of voltages, another road is an output, and the output of described 3 ports from second three terminal regulator is also drawn second electric capacity and the 12 electric capacity ground connection, wherein 2 port ground connection of second three terminal regulator in parallel.
For speed/rotating speed is analyzed and is handled, input filtering of described speed/rotating speed and frequency division module are held with the B of the 7th triode with the 33 resistance and are connected from incoming end one road the 30 resistance of connecting, draw the 7th capacity earth on the incoming end, draw the first voltage stabilizing didoe ground connection between the 30 resistance and the 33 resistance, the E end ground connection of described the 7th triode, the C end is drawn the 34 resistance and is connect positive five volts of voltages, the C of the 7th triode end and E end are parallel with the 8th electric capacity simultaneously, the C end of the 7th triode is connected with 1 port of integrated chip, wherein 2 ports in the integrated chip and 7 port ground connection, 14 ports are output, and draw the 6th capacity earth from output.
In order to regulate the brightness of LED lamp, be provided with the 31 resistance between input and the output in the described LED brightness regulation input module, draw the 32 resistance from input and connect positive five volts of voltages, draw the 9th capacity earth from output.
For serial communication being rectified the normal open news, be provided with two parallel circuitss in the described serial communication module, the 38 resistance of leading up to is connected with single-chip microcomputer, the C termination of another Lu Congdi four triodes is gone into, drawing the 35 resistance from the B end is connected with single-chip microcomputer, wherein the C of the 4th triode end is drawn the 37 resistance and is connect positive five volts of voltages, and E holds ground connection.
In order to control the LED lamp, three circuit of drawing from single-chip microcomputer in the described LED sheet modeling piece, the first via is connected with the B end of first triode by the 27 resistance, the second the tunnel passes through the 28 resistance is connected with the B end of second triode, Third Road is connected with the B end of the 3rd triode by the 29 resistance, the C end of described first triode, second triode and the 3rd triode is connected with the LED lamp, and the E end all connects positive five volts of voltages.
Compared with prior art, the novel advantage of this use is: this solid state LED shows that having substituted traditional pointer shows, has improved reliability greatly, is suitable for the application of adverse circumstances such as material handling, engineering machinery.
Description of drawings:
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is a kind of Circuits System block diagram of solid-state vehicular meter LED display module;
Fig. 2 is a kind of Circuits System circuit diagram of solid-state vehicular meter LED display module;
1, power input 2, one-level Voltage stabilizing module 3, secondary Voltage stabilizing module 4, speed/mileage/rotating speed module 5, power supply monitoring/resetting means 6, speed/rotating speed input filter shape and frequency division module 7, LED brightness regulation input module 8, single-chip microcomputer 9, LED section driving 10, LED sheet modeling piece 11, serial communication module 12, LED lamp
Embodiment:
Describe the present invention below in conjunction with the drawings and the specific embodiments:
The Circuits System of a kind of solid-state vehicular meter LED display module illustrated in figures 1 and 2, power input 1 is by one-level Voltage stabilizing module 2, secondary Voltage stabilizing module 3 is powered to late-class circuit, stable in order to guarantee power supply safety and voltage, power supply is leaded up to diode D3 in the one-level Voltage stabilizing module 2, resistance R 23 is connected with the C end of triode Q6, draw two circuit between diode D3 and the resistance R 23, the resistance R 24 of leading up to is connected with the C end of triode Q6, another road is connected with the B end of triode Q6 by resistance R 25, the E end of triode Q6 is for output and draw capacitor C 1 ground connection, the B end of triode Q6 is drawn voltage stabilizing didoe D4 ground connection, draws piezo-resistance MOV1 ground connection at power input 1; Input is connected with 1 port of three terminal regulator U2 in the described secondary Voltage stabilizing module 3, and draw capacitor C 11 ground connection from input, 3 ports of three terminal regulator U2 are drawn two circuit, one the tunnel connects positive five volts of voltages, another road is an output, the output of described 3 ports from three terminal regulator U2 is also drawn capacitor C 2 and capacitor C 12 ground connection in parallel, the wherein 2 port ground connection of three terminal regulator U2; In order to arrive the safety that single-chip microcomputer 8 backs guarantee single-chip microcomputers 8 at power supply, power supply monitoring/resetting means 5 in parallel between described secondary voltage stabilizing end 3 and the single-chip microcomputer 8; Next, speed/rotating speed input filter shape and frequency division module 6, LED brightness regulation input module 7 and serial communication module 11 are connected in parallel on respectively on the single-chip microcomputer 8, and signal sends single-chip microcomputer 8 to separately; For speed/rotating speed input filtering is analyzed and is handled, input filtering of described speed/rotating speed and frequency division module 6 are held with the B of triode Q7 with resistance R 33 and are connected from incoming end T/S one road resistance R 30 of connecting, draw capacitor C 7 ground connection on the incoming end T/S, draw voltage stabilizing didoe D1 ground connection between resistance R 30 and the resistance R 33, the E end ground connection of described triode Q7, the C end is drawn resistance R 34 and is connect positive five volts of voltages, the C of triode Q7 end and E end are parallel with capacitor C 8 simultaneously, the C end of triode Q7 is connected with 1 port of integrated chip U4, wherein 2 ports among the integrated chip U4 and 7 port ground connection, 14 ports are output, and draw electric capacity (C6) ground connection from output; In order to control the brightness of LED lamp, be provided with resistance R 31 between input OPT and the output in the described LED brightness regulation input module 7, draw resistance R 32 from input OPT and connect positive five volts of voltages, draw capacitor C 9 ground connection from output; In order to make serial communication normal, be provided with two parallel circuitss in the described serial communication module 11, the resistance R 38 of leading up to is connected with single-chip microcomputer 8, another road is gone into from the C termination of triode Q4, drawing resistance R 35 from the B end is connected with single-chip microcomputer 8, wherein the C of triode Q4 end is drawn resistance R 37 and is connect positive five volts of voltages, and E holds ground connection; Then, single-chip microcomputer 8 acknowledge(ment) signal and signal sampled and handle under the safe power supply of power input 1, signal is passed to speed/mileage/rotating speed module 4, speed/mileage/the rotating speed that shows vehicle, synchronous signal is also passed to LED lamp 12 by driving 9 of LED section and LED sheet modeling piece 10, shows car speed by LED lamp 12 bright numbers; In order to guarantee the accurate discriminatory analysis of 10 pairs of signals of LED sheet modeling piece, three circuit of drawing from single-chip microcomputer 8 in the described LED sheet modeling piece 10, the first via is connected with the B end of triode Q1 by resistance R 27, the second the tunnel passes through resistance R 28 is connected with the B end of triode Q2, Third Road is connected with the B end of triode Q3 by resistance (R29), the C end of described triode (Q1), triode (Q2) and triode (Q3) is connected with the LED lamp, and the E end all connects positive five volts of voltages.
It is emphasized that: above only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (8)
1. the Circuits System of a solid-state vehicular meter LED display module, it is characterized in that, power input (1) is powered to late-class circuit by one-level Voltage stabilizing module (2), secondary Voltage stabilizing module (3), speed/rotating speed input filter shape and frequency division module (6), LED brightness regulation input module (7) and serial communication module (11) are connected in parallel on respectively on the single-chip microcomputer (8), and signal sends single-chip microcomputer (8) to separately, after single-chip microcomputer (8) is sampled to signal and handled, signal is passed to speed/mileage/rotating speed module (4) and LED lamp (12).
2. the Circuits System of solid-state vehicular meter LED display module according to claim 1 is characterized in that, power supply monitoring/resetting means (5) in parallel between described secondary voltage stabilizing end (3) and the single-chip microcomputer (8).
3. the Circuits System of solid-state vehicular meter LED display module according to claim 1 is characterized in that, LED section in parallel drives (9) and LED sheet modeling piece (10) between described single-chip microcomputer (8) and the LED lamp (12).
3, the Circuits System of solid-state vehicular meter LED display module according to claim 1, it is characterized in that, power supply is leaded up to diode (D3) in the described one-level Voltage stabilizing module (2), the 23 resistance (R23) is connected with the C end of the 6th triode (Q6), draw two circuit between diode (D3) and the 23 resistance (R23), the 24 resistance (R24) of leading up to is connected with the C end of the 6th triode (Q6), another road is connected with the B end of the 6th triode (Q6) by the 25 resistance (R25), the E end of the 6th triode (Q6) is for output and draw first electric capacity (C1) ground connection, the B end of the 6th triode (Q6) is drawn the 4th voltage stabilizing didoe (D4) ground connection, draws piezo-resistance (MOV1) ground connection at power input (1).
4. the Circuits System of solid-state vehicular meter LED display module according to claim 1, it is characterized in that, input is connected with 1 port of second three terminal regulator (U2) in the described secondary Voltage stabilizing module (3), and draw the 11 electric capacity (C11) ground connection from input, 3 ports of second three terminal regulator (U2) are drawn two circuit, one the tunnel connects positive five volts of voltages, another road is an output, the output of described 3 ports from second three terminal regulator (U2) is also drawn second electric capacity (C2) and the 12 electric capacity (C12) ground connection in parallel, wherein 2 port ground connection of second three terminal regulator (U2).
5. the Circuits System of solid-state vehicular meter LED display module according to claim 1, it is characterized in that, input filtering of described speed/rotating speed and frequency division module (6) are held with the B of the 7th triode (Q7) and are connected from connecting the 30 resistance (R30) and the 33 resistance (R33) of incoming end (T/S) a road, draw the 7th electric capacity (C7) ground connection on the incoming end (T/S), draw first voltage stabilizing didoe (D1) ground connection between the 30 resistance (R30) and the 33 resistance (R33), the E end ground connection of described the 7th triode (Q7), the C end is drawn the 34 resistance (R34) and is connect positive five volts of voltages, the C of the 7th triode (Q7) end and E end are parallel with the 8th electric capacity (C8) simultaneously, the C end of the 7th triode (Q7) is connected with 1 port of integrated chip (U4), wherein 2 ports in the integrated chip (U4) and 7 port ground connection, 14 ports are output, and draw the 6th electric capacity (C6) ground connection from output.
6. the Circuits System of solid-state vehicular meter LED display module according to claim 1, it is characterized in that, be provided with the 31 resistance (R31) between input (OPT) and the output in the described LED brightness regulation input module (7), draw the 32 resistance (R32) from input (OPT) and connect positive five volts of voltages, draw the 9th electric capacity (C9) ground connection from output.
7. the Circuits System of solid-state vehicular meter LED display module according to claim 1, it is characterized in that, be provided with two parallel circuitss in the described serial communication module (11), the 38 resistance (R38) of leading up to is connected with single-chip microcomputer (8), the C termination of another Lu Congdi four triodes (Q4) is gone into, draw the 35 resistance (R35) from the B end and be connected with single-chip microcomputer (8), wherein the C of the 4th triode (Q4) end is drawn the 37 resistance (R37) and is connect positive five volts of voltages, and E holds ground connection.
8. the Circuits System of solid-state vehicular meter LED display module according to claim 3, it is characterized in that, three circuit of drawing from single-chip microcomputer (8) in the described LED sheet modeling piece (10), the first via is connected with the B end of first triode (Q1) by the 27 resistance (R27), the second the tunnel passes through the 28 resistance (R28) is connected with the B end of second triode (Q2), Third Road is connected with the B end of the 3rd triode (Q3) by the 29 resistance (R29), described first triode (Q1), the C end of second triode (Q2) and the 3rd triode (Q3) is connected with the LED lamp, and the E end all connects positive five volts of voltages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100064230A CN102131330B (en) | 2011-01-13 | 2011-01-13 | Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100064230A CN102131330B (en) | 2011-01-13 | 2011-01-13 | Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter |
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| Publication Number | Publication Date |
|---|---|
| CN102131330A true CN102131330A (en) | 2011-07-20 |
| CN102131330B CN102131330B (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100064230A Active CN102131330B (en) | 2011-01-13 | 2011-01-13 | Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359722Y (en) * | 1997-10-07 | 2000-01-19 | 东风汽车公司 | Speed-time display observing and control instrument |
| CN2687614Y (en) * | 2004-02-05 | 2005-03-23 | 项静 | Vehicle speed odometer control circuit |
| CN101701963A (en) * | 2009-10-29 | 2010-05-05 | 埃泰克汽车电子(芜湖)有限公司 | System for displaying automobile speed in automobile instrument |
| CN201975046U (en) * | 2011-01-13 | 2011-09-14 | 科蒂斯仪器(中国)有限公司 | Circuit system of LED display module of solid-state vehicle instrument |
-
2011
- 2011-01-13 CN CN2011100064230A patent/CN102131330B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359722Y (en) * | 1997-10-07 | 2000-01-19 | 东风汽车公司 | Speed-time display observing and control instrument |
| CN2687614Y (en) * | 2004-02-05 | 2005-03-23 | 项静 | Vehicle speed odometer control circuit |
| CN101701963A (en) * | 2009-10-29 | 2010-05-05 | 埃泰克汽车电子(芜湖)有限公司 | System for displaying automobile speed in automobile instrument |
| CN201975046U (en) * | 2011-01-13 | 2011-09-14 | 科蒂斯仪器(中国)有限公司 | Circuit system of LED display module of solid-state vehicle instrument |
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| Publication number | Publication date |
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| CN102131330B (en) | 2013-12-18 |
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Effective date of registration: 20161220 Address after: Xinping street Suzhou Industrial Park in Jiangsu province 215000 No. 388 Building No. 7 Suzhou innovation park off Patentee after: Curtis Technology (Suzhou) Co., Ltd. Address before: 215129 Suzhou high tech Zone, Jinshan Road, No. 86, Jiangsu Patentee before: Curtis Instruments Inc. |