CN2407327Y - Intelligence meter of automobile - Google Patents

Abstract

The utility model relates to an intelligence instrument for a motor vehicle, which is composed of a sensor, an input circuit 3, an A/D converting circuit 4, a central processing unit circuit 5, a shaping circuit 7, a display driving circuit 6, an alarm circuit 12, a power supply circuit 8, a drive circuit 10, an execution circuit 9 and an instrument display panel, wherein, the central processing unit circuit 5 is provided with an SCM and a memory. The utility model has the functions that all parameters and information that need to be displayed by the motor vehicle can be recognized, and the automatic processing capacity is realized, and the full automatic man-machine conversation is realized. When the utility model is used, the termwise display, the automatic display, the overall display and the limit automatic acoustic and light alarm can be realized according to the needs; thus, the far light and the near light can be automatically converted when the vehicle meeting is generated at night, the prompt can be given when another vehicle comes from the rear part, the detection and the indication can be realized when the circuit malfunction happens, the theft prevention with cipher is realized, a robber can not drive away the motor vehicle because the power supply can be automatically switched off, and the stolen alarming information can be sent out. The utility model has the advantages of low cost, stable and reliable performance, and clear display.

Description

The motor vehicle intelligence instrument

The utility model relates to the vehicle instrument, particularly a kind of automobile-use intelligence instrument.

At present, domestic automobile, the common employed machinery instrument of motorcycle, adopt pointer to show the speed of a motor vehicle, mileage, oil mass, water temperature, oil pressure, charging current mostly, under high vibration, all temps, wet environment state, performance is unreliable, unstable, has short, defective such as indication is narrow, backward in technique, manufacture craft is numerous and diverse in serviceable life, the used flexible axle of vehicle speed mileage particularly, very easily damage under the mechanical shear stress effect, mileage is also moved back in reversing, does not play due effect.For overcoming these defectives, the vehicular meter of electronic type occurred, but still had many defectives.As the patent No. is that the full-electronic automobile instrument of ZL93239300.4 just exists not vibration resistance, easily loses, can't realize antitheft because of having used battery, data, show stiff, automaticity is low, do not have man-machine dialogue function, display mode can not be removed driver fatigue to greatest extent, alarm range is too narrow, memory storage is single, can not autodiagnosis and circuit detect deficiencies such as the far and near light that can not automatically switch during the night running meeting automatically.

The purpose of this utility model is the defective at prior art, and a kind of electronic technology that adopts microcomputerized control is provided, and makes more perfect functions, automaticity is higher, performance is more stable motor vehicle intelligence instrument.

The utility model motor vehicle intelligence instrument is to adopt clear intactly enforcement of following technical scheme to finish: promptly a kind of motor vehicle intelligence instrument, comprise receiving and handling and come from the speed of a motor vehicle, voltage, water temperature, amount of gasoline, oil level, the brake oil mass, far and near light meets at night, night the back circuit and the display instrument panel thereof of sensor signal of information of sending a car, it is characterized in that circuit comprises input circuit, the A/D change-over circuit, the CPU (central processing unit) circuit that contains single-chip microcomputer and storer, current amplification circuit, shaping circuit, drive display circuit, warning circuit, power circuit, meeting drives relay circuit and executive circuit; After carrying out filtering, anti-interference process and level conversion, input circuit imports the digital signal that the A/D conversion becomes the identification of monolithic function from the signal of sensor, through the single-chip microcomputer calculation process, send current amplification circuit to amplify, luminous and show state separately respectively with dynamic scan mode driving display spare; The cue that meets at night that wherein sensor receives send driving circuit to carry out far and near light switching after single-chip microcomputer is handled; The speed of a motor vehicle and engine speed are to take the sensor that adopts Hall element or photovalve to make, convert mechanical separator speed to electric impulse signal, send the single-chip microcomputer calculation process after shaping circuit is handled, and drive display circuit and warning circuit; Adopt man-machine conversation or anti-theft cipher button to be connected with single-chip microcomputer, after its identification, calculation process, the driving circuit that stops is carried out in control, or changes the display mode of instrument.

The utility model motor vehicle intelligence instrument compared with prior art has the micro computer advanced technology, all parameters of the required demonstration of energy cognitron motor-car, information, and handle automatically, realize full-automatic man-machine conversation, have by actual needs especially and show item by item, automatically show or show comprehensively, the automatic sound of the limit, light is reported to the police, and the far and near light that automaticallyes switch meets at night, back car is pointed out automatically, fault detects indication, cipher anti theft, and outage is stopped and is refused to steal automatically, send stolen warning message, guarantee that without battery data are not lost and the advantage of instrument autodiagnosis, to the maintenance of motor vehicle, safety all has good effect.

Below in conjunction with accompanying drawing said structure of the present utility model is further narrated:

Fig. 1 is the utility model circuit theory block diagram;

Fig. 2 is the synoptic diagram of the utility model panel board;

Fig. 3 is input filter circuit figure of the present utility model;

Fig. 4 is A/D change-over circuit figure of the present utility model;

Fig. 5 is a CPU (central processing unit) circuit diagram of the present utility model;

Fig. 6 is driving of the present utility model, display circuit figure;

Fig. 7 is shaping circuit figure of the present utility model;

Fig. 8 is working power circuit figure of the present utility model;

Fig. 9 is burglar alarm executive circuit figure of the present utility model;

Figure 10 is that meeting of the present utility model drives relay circuit figure;

Figure 11 is the utility model man-machine conversation key circuit figure;

Figure 12 is buzzer alarm circuit figure of the present utility model;

Figure 13, the 14th, the structural representation of the utility model speed of a motor vehicle or engine speed sensor.

Referring to accompanying drawing 1, motor vehicle intelligence instrument among the figure, comprise receiving and handling and come from the speed of a motor vehicle, voltage, water temperature, amount of gasoline, oil level, brake oil mass, the far and near light that meets at night, night the send a car circuit and the display instrument panel thereof of sensor signal of information of back, it is characterized in that circuit comprises input circuit 3, A/D change-over circuit 4, contains the CPU (central processing unit) circuit 5 of single-chip microcomputer and storer, shaping circuit 7, display driver circuit 6, warning circuit 12, power circuit 8, meeting drive relay circuit 10 and executive circuit 9; After carrying out filtering, anti-interference process and level conversion, input circuit 3 imports the digital signal that A/D change-over circuit 4 is converted to the identification of monolithic function from the signal of sensor, through the single-chip microcomputer calculation process, send the current amplification circuit in the display driver circuit 6 to amplify, luminous and show state separately respectively with dynamic scan mode driving display spare; The cue that meets at night that wherein sensor receives send driving circuit 10 to carry out far and near light switching after single-chip microcomputer is handled; The speed of a motor vehicle and engine speed are the sensors 11 that adopts Hall element or photovalve to make, and convert mechanical separator speed to electric impulse signal, send the single-chip microcomputer calculation process after shaping circuit 7 is handled, and drive display circuit 6 and warning circuit 12; Adopt man-machine conversation or anti-theft cipher button AN to be connected with single-chip microcomputer, after its identification, calculation process, the executive circuit 9 that stops is carried out in control, or changes the display mode of instrument.

Referring to accompanying drawing 2, in panel board as shown in the figure, wherein 13 are the indication of burglar alarm state, 14 are the engine oil pressure indication, 15 are the indication of brake oil mass, and 16 is the fault indication, and 17 are the velocity simulate demonstration, 18 is that little mileage shows, 19 for total kilometrage shows, 20 for water temperature shows, 21 are the battery voltage demonstration, 22 are the amount of gasoline indication, 23 are man-machine conversation button AN, and 24 is window with an automatic light meter, and 25 are the engine speed demonstration, 26 are lampet indication at night, 27 is far and near indication, and 28 is a left side, the indication of right-hand bend lamp, 29 are the backup lamp indication, 30 are the brake lamp indication, the back prompting of sending a car at 31 nights.

Referring to accompanying drawing 3, its corresponding sensor of each input end of input filter circuit 3 connects, and wherein storage battery+12V voltage is through R ₃₆And R ₃₇Dividing potential drop produces the voltage that is directly proportional with input voltage, through R ₈₁, C ₄The filtering circuit filtering of forming is delivered to the processing of A/D change-over circuit through 101 output terminals and is become digital signal, read by single-chip microcomputer, deliver to electric current through calculation process and amplify to drive show, limit the quantity of if reach to report to the police, the deliver newspaper input end 57 of alert circuit 12 of the signal of single-chip microcomputer after with calculation process is carried out and is reported to the police; The signal of water temperature, amount of gasoline, oil level, brake oil mass carries out after filtering, anti-interference process and the level conversion respectively by 102～105 termination A/D change-over circuits respectively by 98～95 inputs; Signal with an automatic light meter is by photoresistance R ₄₁Resistance change with the power of ambient light, through R ₃₉Dividing potential drop is after R ₈₀With C ₁₃Send the A/D processing to become digital signal by 100 ends after the filtering circuit filtering of forming and read by single-chip microcomputer, after calculation process, send into and drive display circuit 6, control all luminescent device electric currents, thereby reach purpose with an automatic light meter; Meet at night and automatically switch far and near light signal by photoresistance R ₈₈The induction back obtains, and by the output of 106 ends, delivers to the input end 44 that drives relay circuit 10 and drive relay after the signal after the A/D conversion is imported the single-chip microcomputer processing again, realizes that far and near light automaticallyes switch; Cue send a car night behind the car by photoresistance R ₉₁Induction obtains, and the signal after the A/D conversion is imported single-chip microcomputer again and handled rear drive display circuit 6 current amplification circuit rear drives demonstration.

Referring to Fig. 4, this A/D change-over circuit 4 adopts ADC0809 integrated chip U ₁, its input end is connected with the output terminal of input circuit, with manner of comparison one by one eight tunnel single-ended analog quantitys of input circuit 3 is converted to digital signal and reads for single-chip microcomputer.

Referring to Fig. 5, CPU (central processing unit) circuit of the present utility model is by 51 series monolithic U ₂With 2 serial/parallel switching devices of 74HC164 and CPU monitoring circuit (house dog) MAX706 and Serial E ²PROM93C ₄₆Storer is formed, its input end receives the signal that button AN sends here, the signal that single-shot trigger circuit is sent here, the data that read A/D, deal with data respectively, with the data storing of needs storages, and signal is transported to respectively drives display circuit 6, warning circuit 12, driving circuit 10 and executive circuit 9 shows respectively, the automatic switchover and the antitheft parking of warning, far and near light.93C46 among the figure is a Serial E ²PROM, be used for storing in good time little mileage, total kilometrage, anti-theft cipher, it has the function of online rewrite data, and no matter non-transformer is arranged, data are not lost.

Referring to Fig. 6, the signal amplification driving LED that the driving display circuit is sent single-chip microcomputer here is luminous, and all demonstrations can be finished by LED, and driving display circuit as shown in the figure is the electric current amplified current, and its quantity is determined by the LED quantity of participating in demonstration.

Referring to Fig. 7, by two trigger U ₃And U ₄Speed of a motor vehicle frequency pulse and engine rotational speed signal that the monostable triggering shaping circuit 7 that constitutes is sent sensor 11 here carry out shaping, respectively through R ₅₅And R ₅₆, R ₉₃And R ₉₄, send Fig. 5 single-chip microcomputer to carry out step-by-step counting, draw little mileage and total kilometrage and storage after the computing, vehicle speed signal is sent to drive display circuit 6 demonstrations, and engine rotational speed signal only send driving display circuit 6 to show, does not store.

Referring to Fig. 8, working power circuit 8 carries out filtering with motor vehicle+12V battery voltage, supplies with instrument after the voltage stabilizing and uses.

Referring to Fig. 9, the burglar alarm executive circuit comprises driving tube T9, the switch relay J1 that is connected with the T9 output terminal, and the adhesive switch series of its repeat circuit is connected in the electric power loop of automobile; Behind input end 49 input signals, J ₁Adhesive realizes stopping and refuses to steal by the 46 ends power supply on the car that breaks, and connects 47 terminations simultaneously and is open to traffic and goes up the loudspeaker power supply and send stolen alarm call, sends digital code information by 48 ends simultaneously, reports to the police for digital receiver.

Referring to Figure 10, it is the same with the burglar alarm executive circuit that meeting drives relay circuit 10, driving tube T10, the switch relay J2 that controls by the T10 output terminal, and the adhesive switch series of its repeat circuit is connected in the loop of the distance light of automobile and dipped headlights power supply; After input end 44 is received signal, J ₂Adhesive switches to dipped beam power supply 43 ends by 42 ends with distance light power supply on the automobile, thereby reaches the far and near light that automaticallyes switch.

Referring to Figure 11, button AN circuit is finished the password input and display mode is selected, and little mileage zero clearing is imported by button AN.

Referring to Figure 12, in buzzer alarm circuit, after 57 ends are received signal, send " ticking " acoustic alarm signal.

Referring to Figure 13,14, this speed of a motor vehicle and engine sensor 11 are by the rotating disk of magnet steel or band light hole, Hall element CH or photovalve CG constitute, and the speed of a motor vehicle and the engine speed output terminal 80,81,82 or 83,84,85 on Hall element CH or photovalve CG is passed to shaping circuit 7.Wherein anyly all can replace flexible axle.This sensor is installed on motor vehicle gearbox, the hub, becomes the frequency pulse signal to deliver to the shaping current processing transformation of speed.

Now the utility model motor vehicle intelligence instrument job step, show state are described in down:

Referring to Fig. 2, with the self check of key operated energising instrument, change into after showing once successively by red, orange, green red and constantly flicker, send " tick, tick, tick " sound equipment simultaneously, signal is waited for and is carried password.Engine oil pressure indication 14, indication 15 of brake oil mass and fault indication 16 stop self check, and it shows disappearance.The self check that goes round and begins again is continued in other display area.Password is imported by button AN.Password is made up of three bit digital, and bits per inch is determined with touch potential in 3 second time.Three kinds of Show Colors of burglar alarm state indication 13: red, orange, green, red representative burglar alarm is not removed, the motor vehicle ability that input password cruising; Orange representative is removed burglar alarm once, will input password again after the outage, just can travel, and as not outage, the motor vehicle that need not input password again also can travel; The permanent burglar alarm of removing of green representative is equivalent to cancel anti-theft feature.

When blinking red lamp, input password first number is promptly pressed eight times AN keys as " 8 ", send " ticking " sound just can import second number as " 8 " promptly by eight times AN keys, send " ticking " sound just can import the 3rd number as " 8 " promptly by eight times AN keys, send " ticking " sound every three seconds " tick, tick " sounds, defeated close the finishing of signal, the indication 13 of burglar alarm state becomes orange by redness, display device stops inspection, shows total data, can start to walk to travel.Remove burglar alarm for a long time as need, after aforesaid operations is finished, repeat to import the 3rd number and promptly press eight times AN keys as " 8 ", when sending " tick, tick " sound, close finishing failed in signal, and by red virescence, display device stops inspection, and instrument shows various data; Start back engine oil pressure indication 14 by red virescence, 20 show orange and " tick, tick " sound are arranged after the preheating, and the signal water temperature is suitable, can start to walk to travel.Show respectively that when car travels 5 meters except that indication 13,14,15,16,17, other are disappearance automatically all, (as amounts of transfiniting such as gasoline, water temperature, voltages, all can report to the police automatically, show automatically in the driving on the way) surface is clear, clear.

Select the operation of display mode: press the AN key once, little mileage and zero clearing are set, press the AN key more once, cancel little mileage setting and demonstration, button is reversible.Press AN key secondary, access water temperature and show, press secondary again, disappearing shows that button is reversible.Press the AN key three times, access voltage and show, disappearing by three times shows that button is reversible again.Press the AN key four times, access amount of gasoline and show, again by four times, disappearing shows that button is reversible.Press the AN key five times, show comprehensively, again by five times, disappearing shows that button is reversible.Button six times recovers anti-theft alarm function, and indication 13 becomes orange by green, and this moment, button was irreversible.(when various demonstrations disappear, inside still in work)

When the speed of a motor vehicle is lower than 100km/h, show in 100 scales to be green, noiseless; When the speed of a motor vehicle is higher than 100kg/h, show to be redness " tick, tick, tick " sound five times, the repetition in 30 seconds of every interval from 100 scales; When surpassing 110km/h, the speed of a motor vehicle shows to be redness from 100 scales, " tick, tick, tick " sound five times, and 10 seconds repeat at interval.Showing when water temperature surpasses 95 ℃ changes red, and " tick, tick, tick " rings secondary.When voltage is less than or equal to 10V, show redness, " tick, tick, tick " sound secondary.Also can keep when travelling 30km when amount of gasoline, show red, " tick, tick, tick " sound secondary, continuous five times of the sound " ticked, ticks, ticks " after ten minutes.Indication 14,15,16,31 is sent when reporting to the police, blinking red lamp, " tick, tick, tick " sound continuous quadratic.

When indicating 13 to show the five meters just automatic outage stagnations of movement of (mistake is failed or do not input password) motor-driven vehicle going of starting to walk by force when redness are flashed, longtime call of horn, send warning message, start to walk again more only after the outage once to travel five meters, when the input proper password recovers cruising again.

The utility model motor vehicle intelligence instrument is used micro-computer technology, and structure, demonstration, the use of instrument are more become rationally, and is simple and direct, the life-span is longer, has solved an insoluble in the past difficult problem, and increased brand-new content, can fully satisfy driver's needs.

Claims (7)

1. motor vehicle intelligence instrument, comprise receiving and handling and come from the speed of a motor vehicle, voltage, water temperature, amount of gasoline, oil level, brake oil mass, the far and near light that meets at night, night the send a car circuit and the display instrument panel thereof of sensor signal of information of back, it is characterized in that circuit comprises input circuit (3), A/D change-over circuit (4), contains the CPU (central processing unit) circuit (5) of single-chip microcomputer and storer, shaping circuit (7), display driver circuit (6), warning circuit (12), power circuit (8), meeting drive relay circuit (10) and executive circuit (9); After carrying out filtering, anti-interference process and level conversion, input circuit (3) imports the digital signal that A/D change-over circuit (4) is converted to the identification of monolithic function from the signal of sensor, through the single-chip microcomputer calculation process, send the current amplification circuit in the display driver circuit (6) to amplify, luminous and show state separately respectively with dynamic scan mode driving display spare; The cue that meets at night that wherein sensor receives send driving circuit (10) to carry out far and near light switching after single-chip microcomputer is handled; The sensor (11) that the speed of a motor vehicle and engine speed adopt Hall element or photovalve to make converts mechanical separator speed to electric impulse signal, send the single-chip microcomputer calculation process after shaping circuit 7 is handled, and drives display circuit (6) and warning circuit (12); Adopt button (AN) to be connected, carry out the executive circuit (9) that stops by its input password or by its indication Single-chip Controlling, or change the display mode of instrument with single-chip microcomputer.

2. motor vehicle intelligence instrument according to claim 1, it is characterized in that: have burglar alarm state indication (13) on the panel board, engine oil pressure indication (14), brake oil mass indication (15), fault indication (16), velocity simulate shows (17), and little mileage shows (18), and total kilometrage shows (19), water temperature shows (20), battery voltage shows (21), amount of gasoline indication (22), man-machine conversation button (AN) (23), window with an automatic light meter (24), engine speed shows (25), lampet indication at night (26), headlight indication (27), a left side, right-hand bend lamp indication (28), backup lamp indication (29), brake lamp indication (30), the back prompting (31) of sending a car at night.

3. motor vehicle intelligence instrument according to claim 1, it is characterized in that: the speed of a motor vehicle and engine sensor (11) are by the rotating disk of magnet steel or band light hole, Hall element (CH) or photovalve (CG) constitute, the speed of a motor vehicle and engine speed output terminal (80,81,82) or (83,84,85) on Hall element (CH) or photovalve (CG) are passed to shaping circuit (7), sensor (11) is installed on motor vehicle gearbox, the hub, becomes the frequency pulse signal to deliver to shaping circuit transformation of speed and handles.

4. motor vehicle intelligence instrument according to claim 1 is characterized in that: A/D change-over circuit (4) adopts integrated chip U ₁, its input end is connected with the output terminal of input circuit, with manner of comparison one by one eight tunnel single-ended analog quantitys of input circuit (3) is converted to digital signal and reads for single-chip microcomputer.

5. motor vehicle intelligence instrument according to claim 1 is characterized in that: the CPU (central processing unit) circuit is by single-chip microcomputer (U ₂) and two serial/parallel switching devices and CPU monitoring circuit, Serial E ²PROM forms; Its input end receives the signal that button (AN) sends here, the signal that single-shot trigger circuit is sent here, the data that read A/D, deal with data respectively, with the data storing of needs storages, and signal is transported to respectively drives display circuit (6), warning circuit (12), driving circuit (10) and executive circuit (9) shows respectively, the automatic switchover and the antitheft parking of warning, far and near light.

6. motor vehicle intelligence instrument according to claim 1, it is characterized in that: the burglar alarm executive circuit comprises driving tube (T9), the switch relay (J1) that is connected with (T9) output terminal, and the adhesive switch series of its repeat circuit is connected in the electric power loop of automobile.

7. motor vehicle intelligence instrument according to claim 1, it is characterized in that: it is the same with the burglar alarm executive circuit that meeting drives relay circuit (10), driving tube (T10), by the switch relay (J2) of (T10) output terminal control, the adhesive switch series of its repeat circuit is connected in the loop of the distance light of automobile and dipped headlights power supply.

Images