CN2139537Y - Intelligence liquid crystal digital display and controlling meter for motor driven vehicle - Google Patents
Intelligence liquid crystal digital display and controlling meter for motor driven vehicle Download PDFInfo
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- CN2139537Y CN2139537Y CN 92242023 CN92242023U CN2139537Y CN 2139537 Y CN2139537 Y CN 2139537Y CN 92242023 CN92242023 CN 92242023 CN 92242023 U CN92242023 U CN 92242023U CN 2139537 Y CN2139537 Y CN 2139537Y
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Abstract
The utility model relates to an intelligent liquid crystal digital display and control meter for motor driving vehicle, belonging to the field of meter control and liquid crystal display applications. The utility model mainly comprises a plurality of sensors, an A/D converter, a D/A converter, a CPU with the external circuit, a liquid crystal display panel with the drive circuit, etc. The treatment and the memory of various imformations of different types of vehicles can be realized, the monitoring, alarm and autocontrol of the working state of the vehicles can be realized, and various imformations can be displayed in one liquid crystal panel. The utility model has the advantages of small occupied area, and clear and accurate data display, and can be used in various levels of vehicles, and can enhance the level of the vehicles, and can increase the driving safety factors.
Description
The utility model belongs to instrument and meter and control and lcd applications field, particularly to the improvement of the signal aspect and indication and the control instrument of power actuated vehicle.
At present, the various data in motor bike, the running car, information adopt each class mechanical type instrument mostly, write down respectively, show.Required various signals are generally directly delivered to machinery instrument by mechanical pick-up device and are shown.For example, speed, the tach signal that the mechanical type instrument is got is to obtain by the flexible axle mechanical rotation amount that flexible axle connects with wheel hub or engine retarder, mileage is to obtain by the flexible axle mechanical counter, and these machinery instruments are installed in respectively on the operator's compartment front panel, and area occupied is big.Machinery instrument uses the back for a long time because natural factors such as wearing and tearing can cause read untrue.In addition, general automatic monitor alarm and the control setup that does not also have some signals of present power actuated vehicle.
The purpose of this utility model is that the information of designing a kind of intelligent comprehensive type shows and the signal control instrument, to overcome the weak point of prior art, technology such as this instrument employing Computer signal processing and control, liquid crystal display have the required various information of summary display power actuated vehicle, realization is remembered data, storage, and some state of vehicle monitored, reports to the police and purpose such as control.Also can realize " black box " function (state that keeps the last moments such as traffic accident: the speed of a motor vehicle, turn to etc.).
The utility model is designed a kind of intelligent liquid digitalisation power actuated vehicle display instrument, it is characterized in that comprising a plurality of sensors that are used for the various information of collection vehicle, the analog quantity information of said sensor output is converted to the A/D converter of the digital signal of handling for computer processor, convert the digital signal after the computer processor processing to show and control the analog signal of usefulness for telltale D/A converter, the computer processor CPU and the peripheral circuit thereof that are used for data handing and storage, LCD panel that the output signal of said computer processor is shown and decoding thereof and driving circuit each several part constitute.Under hardware unmodified condition, can realize integrated control functions simultaneously.
The utility model is owing to adopt the Computer signal treatment technology can to keep off the various information of inferior power actuated vehicle and handle memory, storage to dissimilar.Various information, data are carried out different disposal by different needs, also can the mode of operation of vehicle be monitored, report to the police and automatic guidance.Adopt extensive liquid crystal display drive circuit and large-area liquid crystal summary display plate, various information can be combined in a display panels and show, replace all kinds of display instruments, instrument, not only save the area occupied of instrument, and data display is clear, accurate.Also the LCD panel of this instrument can be made transparently, be installed in the first-class place of windshield, it is convenient and reliable that the motorist is observed.This instrument can be widely used among all kinds of power actuated vehicles, and helps to improve the retaining of vehicle, makes vehicle ' safer, reliable.The utility model can be according to the inferior different needs of difference retaining, and the sensor that flexible configuration is different, microprocessor carry out data handing according to different needs, to obtain required information.
Brief Description Of Drawings
Fig. 1 is a present embodiment design-calculated electric pulse sensor scheme drawing
The engine overrun speed that Fig. 2 adopts for present embodiment, extraordinary high temperature protection controller
A kind of two cycle engine exhaust timing controller that Fig. 3 adopts for present embodiment
Fig. 4 is present embodiment circuit principle of compositionality figure
The program flow chart that Fig. 5 adopts for present embodiment
Fig. 6 is a present embodiment liquid crystal summary display screen Presentation Function layout circle
Fig. 7 is present embodiment LCDs and wiring board assembly drowing
The utility model provides a kind of intelligent liquid crystal digital demonstration on general automobile, the motor bike and embodiment of control instrument of being assemblied in.Its each several part composition, structure such as Fig. 1～shown in Figure 6, described in detail one by one below in conjunction with each accompanying drawing.
Present embodiment by 1, sensor, controller; 2, A/D, D/A converter, computer microprocessor (CPU) and peripheral circuit thereof; 3, liquid crystal summary display plate and decoding thereof, driving circuit three parts are formed.
1, sensor and controller part:
Present embodiment has adopted a plurality of sensors can be to speed per hour, mileage, the engine speed of vehicle, water temperature, and oil mass, engine oil pressure, information such as brake pressure are gathered.Sensor divides four types, and promptly the various analog quantitys that will gather of sensor convert voltage, the magnitude of current, electric pulse amount and switching value output to, and electric pulse type sensor can be used for collection vehicle speed and rotating speed mileage information; Voltage sensor can be used for gathering Engine Coolant Temperature information; Amperometric sensor can be used for gathering oil mass information.The switching mode sensor can be used for exporting switching value, and each sensor receiving end is separately positioned on the parts suitable position of the information that will gather, and its mouth links to each other with the wiring board of computer processor by two Thin cables.
The quantity of the sensor can be selected according to actual needs, combination in any, collocation.Sensor can be selected original sensor on the vehicle for use.
Present embodiment is designed a kind of special-purpose electric pulse type sensor of measuring the speed of a motor vehicle, its structure as shown in Figure 1, this sensor is made up of the garden dish that is socketed in retarder interface in the vehicle hub or flexible axle root and the light-emitting diode and the photelectric receiver that split on the relative position of dish two sides, garden, the same garden of coiling a plurality of through holes of rectangular distribution on week in the garden, the quantity in hole is decided on the transmitting ratio size of vehicle axles, the garden dish rotates with wheel when vehicle ', when the through hole on the dish of garden forwards the position of light-emitting diode to, photelectric receiver receives optical signal and converts electric pulse output to, the number of unit time electric pulse is sent into the moving velocity that computing machine can obtain vehicle, obtains travelled distance by cumulative integral.
Two kinds of controller embodiment of the utility model design, a kind of engine overrun speed, extraordinary high temperature protection controller.One adhesive cut-off relay (23) promptly is installed in the engine spark plug circuit of being made up of high-tension coil (21) and light-up plug (22), and this relay links to each other with the computing machine follower, as shown in Figure 2.When the information that records when tachogen and temperature sensor has surpassed said upper engine speed limit and normal temperature; send the switching value control signal by computer processor; make relay cut off the light-up plug circuit; cause driving engine to stop burning; realization is to the protection of driving engine; avoided thus sharply increasing owing to reasons such as engine output does not match cause engine speed; and engine overheat is burnt, or owing to reasons such as water tank lacks water cause the bad serious consequence that driving engine is scrapped of engine cooling.
Second kind of controller is two cycle engine exhaust timing controller.Be primarily aimed at and adopt the two cycle engine motor bike and design-calculated.According to the two cycle engine theory; Utilize the part of blow off valve to open and close, obtain best exhaust regularly, can make driving engine obtain peak power.This controller example structure principle as shown in Figure 3.This controller is included in cylinder exhaust port (31) and locates to be provided with centre garden jaggy tubular blow off valve (32), and be arranged on air inlet (bearing) pressure sensor, the engine speed sensor of driving engine suitable position, compositions such as exhaust gas temperature sensor, back pressure transducer.This blow off valve rotates a certain angle under joystick (33) control, exhausr port is partly closed, also can turn round a certain angle and make the exhausr port standard-sized sheet, open and close angle control and convert voltage, the magnitude of current, switching value to by the various data (for example engine speed and acceleration/accel, exhaust temperature, exhaust gas pressure) of above-mentioned each sensor acquisition and send into computer processor CPU and handle and realize.The result of CPU after with data handing is by 2 switching value control output ends, export two frequency differences, the pulse that direction is opposite is rotated two-way stepping motor (34) forward or backwards, makes the blow off valve transmission by gear (35) and transmission rope (36) and joystick.CPU sends different pulse numbers in the unit time, just can make blow off valve rotate different angles, thereby realize exhausr port switching in various degree, more than each sensing data and blow off valve open and close angle and time, all be to calculate or experiment draws according to driving engine is theoretical.Adopt sort controller, blow off valve can partly stop up exhausr port when high engine speeds is moved, and realizes exhaust lag, thereby can improve the power of driving engine greatly.
2, A/D, D/A converter and computer processor CPU part
It is core that the present embodiment computation processor is selected Intel 8098 micro controller systems for use, and this chip has the IO interface of A/D, D/A translation function, and it constitutes as shown in Figure 4, and its peripheral circuit comprises following each several part: crystal oscillating circuit; A/D converter VREF (Voltage Reference) source circuit; The address date multiplex bus adopts two 74LS373 and a slice 74LS245 separately; Address decoding circuitry adopts GAL20V8, is used for the gating decoding of peripheral circuit chip; Adopt the job procedure of the former storage micro controller system of EPROM27256 core, need power down such as the former storage mileage of EEPROM2816 core and the data of not losing; Produce 1 tunnel analog signal and 8 path switching signals of control usefulness by PWM and another sheet 74LS373.
Voltage, current-output type sensor (as temperature, oil mass etc.) are connected to the A/D input port ACH4～ACH7 of micro controller system, converting the corresponding digital amount to through A/D sends into micro controller system and handles, electric pulse output type sensor and switching value type sensor are received on the High Speed I/O mouth of micro controller system, micro controller system comes the identification switch state, the sensor output by calculating and electrical level judging.When the instrument normal working, Intel 8098 is by giving the output and the on off state of each sensor of program cycle checkout that is provided with earlier, calculating accordingly result regularly delivers on the liquid crystal display and shows, or deliver to each controller and control, simultaneously with mileage and at once the speed equivalence deposit among the EEPROM2816 forever and preserve.Above-mentioned said all components and parts are installed on the wiring board.
The said computer processor CPU of present embodiment and locate to enclose circuit and also can select other kinds 8 or 16 bit CPUs and corresponding peripheral component for use also can be with integrated one or several large-scale circuit that is cured as of all said elements.
The program that present embodiment is set as shown in Figure 5.Its algorithm is as follows: when instrument powers up or press the instrument reset key; CPU(Intel8098) starting working from reset mode, at first is the instrument initialization, comprises High Speed I/O mouth initialization, PWM initialization, liquid crystal display initialization.Data among the EEPROM2816 are called in the micro controller system.Next be that the timer that is used for Displaying timer resets, start.Begin to start A/D then, measure oil mass, temperature signal, the saltus step of judgement speed, tachogen, computation speed and revolution counter numerical value.Judge on off state, turn to, state such as neutral.After all signal measurement was finished, judgement demonstration timing had been arrived later calculating result of a measurement to designated value (showing once as 0.8 second), delivers to LCDs LCD and goes up demonstration.According to observed reading, the output corresponding control signal is preserved the mileage value in EEPROM, and the Displaying timer device that resets then restarts next round and measures demonstration.If the Displaying timer device is less than designated value, then do not show not record yet, restart to measure, reach designated value up to timing value and begin to show.
3, liquid crystal summary display plate and decoding thereof, driving circuit section
Present embodiment adopts extensive LCD(liquid crystal) driving circuit HD61602 chip and large-area liquid crystal summary display plate, promptly all information of present embodiment all can be presented on the liquid crystal display.HD61602 is special-purpose liquid crystal decoding, driving circuit, and its input end is connected with PAo～PA3 mouth of GAL20V8 address decoding circuitry and EPROM27256, and its mouth and liquid crystal board join.The design of liquid crystal board as shown in Figure 6.The arrow in the left upper right corner of screen is the prompting of Vehicular turn direction; Upper left side 3 bit digital are represented Vehicle Speed, and unit is kilometer/hour (KM/H); Be the amount of fuel indication below the speed numeric display, E be empty, and F is for full, the bright number of square between from E to F just represent oil mass in the fuel tank how much; Left side 6 bit digital of below is mileage accumulation (KM), and the time (TIME), have the records of distance by the log (LOG) shows, three kinds of functions are switched by the K key; Oil mass shows that the below is that engine temperature (water temperature) shows that L is low, and H is high, and little ellipse garden shows light many more between L to H, the high more A of expression temperature; Figure is storage battery demonstrations of need charging above screen middle part, (P) for the parking parking brake shows, (N) is the strangler valve demonstration, and triangle is night or greasy weather Warning light demonstration; The right-hand part 1/4 arc show bar of screen and 1～12 or 1～8(both only select one) individual numeral is that engine speed shows, unit is RPM * 1000, the icon of right steering key head below is that car door or back box lid, engine case etc. do not shut demonstration, three symbols in the screen lower right corner, from left to right being respectively engine oil pressure shows, brake shows and neutral gear shows, two symbols above that are respectively country beam or passing light shows and water tank need add the water demonstration; Intermediate symbols at screen is that room light shows, four letters of the A～D on it give over to specific function as required and show, shows etc. as the atmospheric pressure of braking automobile is not enough.
Above displaying contents is the position of conversion in read-out arbitrarily, and shape also can design and produce other patterns on request, also can increase other needed displaying contents, also can not show the unexistent displaying contents of actual vehicle.Use problem night for solving liquid crystal instrument, can adopt versicolor field to put luminous zone and make backlight, be cost-cutting, also can adopt light-emitting diode to replace.
In the present embodiment, liquid crystal board can adopt dual mode to be connected with wiring board, one, adopt conduction zebra bar line, liquid crystal board and wiring board are fixed together shown in Fig. 7 (a), i.e. LCD panel LCD(71) stud with metal or plastic frame (72) all around with a plurality of pin, insert in the PB wiring board (73) and stubborn curved framework pin, the display panel both sides are symmetrical with conduction zebra bar (74) and the crimping of PB wiring board.They are two years old, adopt the zebra conductive strips to connect, can realize that liquid crystal board separates installation with wiring board, as Fig. 7 (b), be about to the conductive strips two ends and be crimped on respectively on liquid crystal board (71) and the circuit card (72), respectively wiring board and liquid crystal board are fixed on the appropriate location of vehicle again by hot pressing.For solving the anti-vibration of this instrument, shock problem, except that preferably selecting the antivibration liquid crystal board for use, in installing of liquid crystal board and wiring board and vehicle frame adopted the metal framework of fixing liquid crystal board, increase elastic seal ring or adopt the elastoplast framework and instrument bottom plastic adapter plate fixedly mounts.Elastoplast gong nail with having wedge-shaped indentation is evenly distributed on around the liquid crystal board; Snap in through in the gong of the bottom plastic adapter plate nail wedge shape mouth with small iron plate, and twist into S shape.
Claims (7)
1, a kind of intelligent liquid crystal digital power actuated vehicle display instrument, it is characterized in that comprising a plurality of sensors that are used for the various information of collection vehicle, the analog quantity information of said sensor output is converted to the A/D converter of the digital signal of handling for computer processor, convert the digital signal after the computer processor processing to show and control the analog signal of usefulness for telltale D/A converter, the computer processor CPU and the peripheral circuit thereof that are used for data handing and storage, LCD panel that the output signal of said computer processor is shown and decoding thereof and driving circuit each several part constitute.
2, liquid crystal display instrument as claimed in claim 1, it is characterized in that illustrated sensor comprises amperometric sensor, voltage sensor electric pulse type sensor, said computer processor CPU adopts micro controller system, said peripheral circuit comprises that crystal oscillating circuit, A/D converter reference voltage source circuit are formed, the address date multiplex bus, address decoding circuitry, random access memory and control signal circuit.
3, liquid crystal display instrument as claimed in claim 2, it is characterized in that light-emitting diode and photelectric receiver that said electric pulse type sensor coils and splits by the garden that is socketed in the flexible axle root on the vehicle on the relative position of dish two sides, garden are formed, the same garden week of said garden dish is a plurality of through holes of rectangular distribution upward.
4, as the described liquid crystal display instrument of claim 1,2 or 3, it is characterized in that said liquid crystal display, comprise following shows signal on the said LCDs: the arrow in the left upper right corner of screen is the prompting of Vehicular turn direction; Upper left side 3 bit digital are represented Vehicle Speed, and unit is kilometer/hour (KM/H); Be the amount of fuel indication below the speed numeric display, E be empty, and F is for full, the bright number of square between from E to F just represent oil mass in the fuel tank how much; Left side 6 bit digital of below is mileage accumulation (KM), and the time (TIME), have the records of distance by the log (LOG) shows, three kinds of functions are switched by the K key; Oil mass shows that the below is that engine temperature (water temperature) shows that L is low, and H is high, and little ellipse garden shows light many more between L to H, the high more A of expression temperature; Figure is storage battery demonstrations of need charging above screen middle part, (P) for the parking parking brake shows, (N) is the strangler valve demonstration, and triangle is night or greasy weather Warning light demonstration; The right-hand part 1/4 arc show bar of screen and 1～12 or 1～8(both only select one) individual numeral is that engine speed shows, unit is RPM * 1000, the icon of right steering key head below is that car door or back box lid, engine case etc. do not shut demonstration, three symbols in the screen lower right corner, from left to right being respectively engine oil pressure shows, brake shows and neutral gear shows, two symbols above that are respectively country beam or passing light shows and water tank need add the water demonstration; Intermediate symbols at screen is that room light shows, four letters of the A～D on it give over to specific function as required and show.
5, a kind of intelligent liquid crystal digital power actuated vehicle shows and control instrument, it is characterized in that comprising a plurality of sensors that are used for each information of collection vehicle, the analog quantity information of said sensor output is converted to the A/D converter of the digital signal of handling for computer processor, convert the digital signal after the computer processor processing to show and control the analog signal of usefulness for telltale D/A converter, the computer processor CPU and the peripheral circuit thereof that are used for data handing and storage, LCD panel and decoding and driving circuit each several part and driving circuit thereof that the output signal of said computer processor is shown, be used for controller that a plurality of control sensing switch type relays and the valve of the output signal control vehicle corresponding component of said computer processor are formed.
6, demonstration as claimed in claim 5 and control instrument; it is characterized in that said controller is engine overrun speed, extraordinary high temperature protection controller; formed by an adhesive cut-off relay is installed in the engine spark plug circuit that high-tension coil and light-up plug are formed, said relay links to each other with said computer processor CPU delivery port.
7, demonstration as claimed in claim 5 and control instrument, it is characterized in that said controller is a two cycle engine exhaust timing controller, be included in exhaust gas temperature sensor, back pressure transducer, the engine speed sensor that the engine exhaust port place is provided with centre garden jaggy tubular blow off valve and is installed in corresponding site and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242023 CN2139537Y (en) | 1992-12-03 | 1992-12-03 | Intelligence liquid crystal digital display and controlling meter for motor driven vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92242023 CN2139537Y (en) | 1992-12-03 | 1992-12-03 | Intelligence liquid crystal digital display and controlling meter for motor driven vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2139537Y true CN2139537Y (en) | 1993-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92242023 Expired - Fee Related CN2139537Y (en) | 1992-12-03 | 1992-12-03 | Intelligence liquid crystal digital display and controlling meter for motor driven vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN2139537Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110027C (en) * | 1995-05-15 | 2003-05-28 | 定向电子公司 | Advanced automotive automation and security system |
| CN100442019C (en) * | 2005-08-25 | 2008-12-10 | 康寒松 | Digital graphics automobile instrument |
| CN101670842B (en) * | 2008-09-11 | 2011-11-16 | 中国北车集团大同电力机车有限责任公司 | Method and system for displaying locomotive state information |
| CN103129392A (en) * | 2011-11-30 | 2013-06-05 | 株式会社电装 | In-vehicle display apparatus |
-
1992
- 1992-12-03 CN CN 92242023 patent/CN2139537Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110027C (en) * | 1995-05-15 | 2003-05-28 | 定向电子公司 | Advanced automotive automation and security system |
| CN100442019C (en) * | 2005-08-25 | 2008-12-10 | 康寒松 | Digital graphics automobile instrument |
| CN101670842B (en) * | 2008-09-11 | 2011-11-16 | 中国北车集团大同电力机车有限责任公司 | Method and system for displaying locomotive state information |
| CN103129392A (en) * | 2011-11-30 | 2013-06-05 | 株式会社电装 | In-vehicle display apparatus |
| CN103129392B (en) * | 2011-11-30 | 2015-06-17 | 株式会社电装 | In-vehicle display apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Lv Dongming Designer before: Lv Dongming Designer before: Yang Lizhi |
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| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: LV DONGMING; YANG LIZHI TO: LV DONGMING; CO-PATENTEE; FROM: YANG LIZHI TO:NONE |
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| CP01 | Change in the name or title of a patent holder |
Co-patentee before: Yang Lizhi |
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| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: LV DONGMING TO: BEIJING XINGUODA TECHNOLOGY + TRADE CENTER |
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| CP03 | Change of name, title or address |
Address after: 100081 No. 27 Wanshou temple, Beijing, Haidian District Patentee after: Xinguoda Science and Tech. Trade Centre, Beijing Address before: Room 308, East Fourth, Haidian stadium, Haidian District, Beijing Patentee before: Lv Dongming |
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |