CN2201667Y - Vehicle speed meter having real time speed pulse signal output - Google Patents
Vehicle speed meter having real time speed pulse signal output Download PDFInfo
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- CN2201667Y CN2201667Y CN 93217142 CN93217142U CN2201667Y CN 2201667 Y CN2201667 Y CN 2201667Y CN 93217142 CN93217142 CN 93217142 CN 93217142 U CN93217142 U CN 93217142U CN 2201667 Y CN2201667 Y CN 2201667Y
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Abstract
The utility model relates to a vehicle speed meter with the output of real time speed pulse signals. A photoelectric sensing device is arranged in a traditional mechanical transmission magnetic-iron type vehicle speed odometer; a hand shaft for vehicle speed is provided with a luminous tube; a plurality of photosensitive elements are arranged on the surface of a vehicle speed indication panel corresponding to a speed sign; the luminous tube is controlled by external control signals to switch on or off; the output end of each of the photosensitive elements is connected with a multichannel photoelectric converter; the output end of the multichannel photoelectric converter is connected with a coder, the interface of the coder, a photoelectric amplifier and the interface of the photoelectric amplifier to form standby interfaces, and the output end of the multichannel photoelectric converter can be combined with modules with different functions and relevant speed control assembly to carry out automatic records for vehicle speed and automatic control; therefore, a multifunctional device for automatic counting and controlling for vehicle speed is formed.
Description
The utility model relates to a kind of speed of a motor vehicle meter, particularly a kind of motor vehicle speed measuring apparatus of utilizing photoelectric technology meter speed and exporting the real-time speed pulse signal, except that timing speed function with existing speed of a motor vehicle measuring apparatus, the real-time speed pulse signal that also can utilize the present invention to export, automobile is implemented auto-speed record and auto-speed control, to constitute metering of Mobyneb motor vehicle speed and control device.
Speed of a motor vehicle measuring apparatus on the present domestic and international various model automobiles, the overwhelming majority is a mechanical drive magnet-type speedometer.When running car, engine speed is rotated in the iron bowl by flexible axle drive permanent magnet and is induced current vortex, utilizes current vortex and magnet to interact and produces moment of torsion swing speed needle deflection angle method meter speed.Also have a small amount of sedan limousine to adopt the electronic vehicle speed meter, but the real-time speed that can be used as speed record and speed control pulse signal all is not provided, do not see that also have can the module combinations mode, the speed of a motor vehicle measuring apparatus of automobile being implemented different action functions occurs.Mechanical drive magnet-type speedometer particularly, use till today over more than 100 year constant substantially, this is for being in today that the automobile new and high technology develops rapidly, and obviously function singleness too is difficult to adapt to current automobile and is tending towards electronization---the developing direction of robotization.
The utility model proposes a kind of novel speed of a motor vehicle meter on the basis of existing speed of a motor vehicle measuring apparatus technology and traditional function.
The purpose of this utility model proposes a kind of speed of a motor vehicle meter that can export the real-time speed pulse signal, adopts photoelectric sense technology and signal processing circuit output real-time speed pulse signal.
Another purpose of the present utility model is to be equiped with the speed record display device in described speed of a motor vehicle meter, to be formed with the speed of a motor vehicle meter of auto-speed record Presentation Function.
The circuit that another purpose of the present utility model is described speed of a motor vehicle meter has standing interface, supplies and difference in functionality module and speed control combination of components, to form the novel speed of a motor vehicle meter of multi-functional auto-speed Detection ﹠ Controling.
A kind of speed of a motor vehicle meter that can export the real-time speed pulse signal of the utility model, has ferromagnetic formula speedometer structure, comprise driving shaft flexible axle, driving shaft, permanent magnet, iron bowl, speed indicator axle, speed indicator, speed of a motor vehicle display disc, hairspring, its characteristics are also to comprise:
One luminotron is installed on the speed indicator axle, and the light that is sent penetrates from this pointer tip end through described photoelectric speed pointer along needle pivot;
A plurality of light activated elements are installed in speed of a motor vehicle display disc card periphery and mark on the corresponding position with speed, and this light activated element is received from the light that described photoelectric speed pointer sends, and produces electric impulse signal;
One multichannel photoelectric commutator is connected with the output of described a plurality of light activated elements;
One scrambler and interface are connected with the output of described multichannel photoelectric commutator respectively with a photo amplifier and interface, constitute standing interface, with output real-time speed pulse signal.
One gauge tap is connected with described luminotron, at car body about controlling under signal and the external control signal effect connecting and disconnecting of this luminotron of control.
The utility model has the advantages of and be:
1. do not destroy and change the structure of existing automobile, add optoelectronic sensor on traditional speed of a motor vehicle gauging table, recombinant promptly forms described novel speed of a motor vehicle meter with signal processing circuit, and is simple in structure, easy to install and use.
2. can export the real-time speed pulse signal, have standing interface, can combine with relevant speed control assembly, can further implement the speed of a motor vehicle control of the speed record and the different mode of difference in functionality with the difference in functionality module.
Below in conjunction with accompanying drawing, describe this novel method and specific embodiment in detail.
Fig. 1 is a vehicle speed sensor structural representation of the present utility model.
Fig. 2 is the utility model structure principle chart.
Fig. 3 is the utility model electrical schematic diagram.
Fig. 4 is that non-intersection speed of the present utility model detects record display module block diagram automatically.
Fig. 5 is that the utility model is to bicycle Control for Speed Limitation module frame chart.
Vehicle speed sensor of the present utility model, as shown in Figure 1, be made up of traditional mechanical drive magnet-type speedometer and optoelectronic sensor, it comprises the original driving shaft flexible axle of magnet-type speedometer (1), driving shaft (2), permanent magnet (3), iron bowl (4), hairspring (7); And be installed at the photoelectric speed needle pivot (5) that become on the former speed indicator axle of magnet-type speedometer by luminotron (6), be installed at the photoelectricity speed of a motor vehicle display disc (8) that become on the former speed of a motor vehicle display disc by a plurality of photoelectric tube (12), the photoelectric speed pointer parts such as (9) that are installed on the former speed indicator to be become by catoptron (10) and collector lens (11).Luminotron (6) can adopt the 2CU2 pipe, the light that is sent is by photoelectricity speed of a motor vehicle display disc (8), be mapped on the 45 ° of catoptrons (10) that are located in the photoelectric speed pointer (9) according to (thoroughly), refract to the lens (11) that are installed in the pointer end along pointer, project through lens (11) on the photoelectric tube (12) at the speed mark place that is located at photoelectricity speed of a motor vehicle display disc (8), photoelectric tube can adopt PH302.Photoelectric tube can be superimposed with the speed mark of former speed of a motor vehicle display disc, and also can be located at speed indicator axle axle center is on the center of circle, the connection speed of a motor vehicle display disc speed target line or on the extended line of line, on the madial wall that can be contained in the speedometer watchcase.For avoiding photoelectric tube (12) to produce error signal, used collector lens (11) control bundle width is not more than the distance between adjacent two photoelectric tubes.For preventing the interference of extraneous light, also can adopt another structure and the identical pointer of photoelectric speed pointer (9); Perhaps, this pointer that is used for transmitting optical signal also can be made (not shown) with fiber optic materials, above-mentioned pointer is installed under the photoelectricity speed of a motor vehicle display disc (8) in the lighttight watchcase, coaxial with the speed indicator of former magnet-type speedometer, parallel, rotate synchronously, simultaneously, photoelectric tube (12) also is installed in to be marked on the corresponding position with speed below the speed of a motor vehicle display disc, according to this new design and photoelectricity transformation principle, any moment no matter, light beam by the speed indicator ejaculation of indicating the speed of a motor vehicle, be radiated at the voltage signal of exporting between any one the photoelectric tube Shun on the speed of a motor vehicle display disc that is positioned on the reflection speed of a motor vehicle, be this novel described real-time speed pulse signal.
If what certain vehicle speed of a motor vehicle display disc card was represented the speed of a motor vehicle the most at a high speed is designated as 240 kilometers/hour, this novel according to mechanical drive magnet-type speedometer measuring accuracy with 5,10,15,20 ... 240 kilometers/hour are the digit's design of going forward one by one, on photoelectricity speed of a motor vehicle display disc (8), can set up 48 photoelectric tubes altogether, if the travel speed of automobile is per hour 100 kilometers, according to the previous designs principle, photoelectric speed pointer (9) will face the 20th photoelectric tube.By that analogy, any moment is according to the travel speed of automobile, the emitted light beam of photoelectric speed pointer (9), be radiated at the electric impulse signal of moment output on certain photoelectric tube,, can reflect that automobile is in this instantaneous speed value of exporting constantly according to this photoelectric tube place speed mark location of reading.(also can be by 1,2,3,4 ... on photoelectricity speed of a motor vehicle display disc (8), set up 240 a class light activated element or other photochromicss such as photoelectric tube for the digit design of going forward one by one for 240 kilometers/hour.
Described luminotron (6) joins through a gauge tap (13) and power supply, this gauge tap (13) is subjected to the relevant control of controlling signal or trigger pip from car body, this controls the brake signal that signal can be an automobile, also can be that other of car body are controlled signal and trigger pip, as signals such as turning-bar, loudspeaker, safety belts, even also can be the outer remote signal of car.When the driver stepped on brake pedal, luminotron was electrically connected with the Brake lamp of automobile, promptly accepts the control from brake pedal.
As shown in Figure 2, photoelectric tube (12) has a plurality of, individual channel with multichannel photoelectric commutator (14) is connected respectively, and this multichannel photoelectric commutator (14) is connected with photo amplifier and interface (16) with scrambler and interface (15), forms this novel described standing interface.
In Fig. 2, when gauge tap (13) is connected, the light that luminotron 2CU2 sends, behind collector lens (11) optically focused, when photoelectric speed pointer (9) shone the photoelectric tube (12) corresponding with a certain speed mark, the voltage signal that photoelectric tube produces was exported the real-time speed pulse signal through shaping, gating, coding in scrambler and interface (15).This scrambler and interface (15) can with speed displayed record module combinations, the spot speed of displayed record automobile; Also can make up with speed of a motor vehicle control module, utilization is made gating signal from the speed identification code of scrambler and interface (15) output, the multichannel of opening in photo amplifier and the interface (16) is selected an analog switch, and the voltage signal processing and amplifying that photoelectric tube is produced is the automatically controlled signal that be used for speed of a motor vehicle control of another road from photo amplifier and interface (16) output.Above-mentioned electric principle and with the array mode of module and action function by Fig. 3 combine Fig. 4, Fig. 5 embodiment further specifies, to realize this novel described purpose.
In Fig. 3,2CU2 also is the luminotron of Figure 1 and Figure 2 for being satisfied with the luminotron on the photoelectric speed needle pivot (5).PH302 is that row's correspondence is satisfied with the photoelectric tube that photoelectricity speed of a motor vehicle display disc (8) speed is put on.According to this new principle, among Fig. 3, when the light signal of 2CU2 is radiated on the PH302, mating shaping in the CMOS of Fig. 3 CD4011 NAND circuit after, the voltage signal that photoelectric tube PH302 produces enters the input end of SN74LSO8 AND gate.CTRL control end no signal of accepting extraneous signal control when another of this AND gate enters or during by gating, by the signal of gating, also be that photoelectric speed pointer (9) is radiated at the standard logic level signal through shaping that a plurality of photoelectric tubes of some photoelectric tubes (12) or other produce and will enters scrambler SN74147, and represent the recognition sign indicating number of the speed of a motor vehicle from output terminal output, in this case, selected an analog switch to enter the LM741 operational amplifier by the voltage signal of the PH302 of the gating also CD4051 multichannel from Fig. 3, be enlarged into automatically controlled signal.(this amplifying circuit has and on one side adds delay circuit, the time-delay output when being used to control automatically controlled signal and arriving, sound and light alarm and other output signal purposes of need delaying time when reaching that the speed of a motor vehicle enters or surpassing speed limit.Do not draw among this delay circuit Fig. 3).
Fig. 4 detects record display module block diagram automatically for non-intersection speed, and the output signal of scrambler and interface (15) is delivered to this record display module automatically.
In Fig. 4, according to this novel described principle of work, when the driver steps on brake pedal in any moment in the automobile traveling process, coded signal by scrambler and interface (15) output, it also is the velocity amplitude identification code of Fig. 3 SN74147 output, solve the instantaneous speed value of representing automobile through Fig. 4 speed code translator (17), when this velocity amplitude is stepped on brake pedal as the driver at the existing velocity amplitude of this moment automobile, with latch in the speed latch (18) and, in speed comparator (20), compare by the former velocity amplitude that velocity indicator (19) shows; If existing velocity amplitude latchs greater than speed latch (18) and when the former velocity amplitude that velocity indicator (19) shows, speed comparator (20) produces a update signal, new existing velocity amplitude is latched in speed latch (18), to show velocity amplitude by velocity indicator (19) shows, otherwise former velocity amplitude is not updated; Meanwhile, the update signal that speed comparator (20) produces, also toggle speed register (21), the existing velocity amplitude that upgrades is stored in static random memory (RAM) or the electric erasable read-only memory (EEPROM), upgrade the velocity amplitude of former record, so that the inspection of relevant traffic safety department.Above-mentioned record show state is realized originally novel described standing interface and difference in functionality module till being maintained to and having the more speed value to occur next time when the driver steps on brake pedal---non-intersection speed detects record display module combination automatically, reaches and implement this novel auto-speed displayed record function that proposes.
Fig. 5 is to bicycle Control for Speed Limitation module frame chart, and this module receives car and controls signal outward, exports the AND gate circuit control end CTRL of restricting signal to Fig. 3 after treatment.
Explanation
1. this module speed limit and vehicle number are provided by the outer remote signal of car.
2. this module is stored in this car license plate number in this car license number read-only memory in advance, and the car owner can't rewrite privately.
3. speed limit in the remote signal and license plate number are imported by the keyboard on the telepilot, and will be modulated into radio wave transmission (5 parts omitted of signal emission block diagram) behind its parallel commentaries on classics serial code.
In Fig. 5, after signal receiver (22) is controlled the signal reception outward with car, after changeing parallel signal demoder (23) decoding, serial signal obtains license plate number and the speed limit signal deposits in respectively in license number register (24) and the speed limit latch (25), when this car license number that the license plate number of controlling signal input outside car and license number read-only memory (27) store is identical, confirmation signal of license number comparer (26) output, make the output enable end (OE) of speed limit latch (25) effective, start the gauge tap J among Fig. 3, make luminotron 2CU2 send light signal; Meanwhile, the speed limit signal also enters demoder (28).The speed limit signal that demoder (28) solves, be after restricting signal that transmitter is launched is received device (22) and receives, confirm under the identical license number situation at license number comparer (26), the speed limit signal is imported the control end CTRL's of Fig. 3 AND gate, like this, when the high level signal of the low level signal of representing the low speed limit and the high speed limit of representative enters AND gate control end CTRL, end on each road of AND gate that correspondence is lower than speed limit, and corresponding each road maintenance gating of AND gate that is in speed limit and is higher than speed limit.In this case, coming from the outer speed limit high level signal of car will open multichannel by the corresponding coded address of scrambler NS74147 output terminal and select an analog switch CD4051, the other end voltage signal of PH302 output is amplified, behind delayed alarm, export automatically controlled signal from amplifier LM741 output terminal, utilize this automatically controlled signal to act in the relevant speed control assembly of car body, as ignition switch, the fuel feeding control system, even relevant speed automatic operation device, make parking of automobile or Reduced Speed Now; Otherwise, coming from the outer speed limit low level signal of car then is cut off, the light signal of luminotron (2UC2) is through 45 ° of catoptrons, collector lens penetrate by the photoelectric speed pointer with speed of a motor vehicle size variation light beams deflected, the voltage signal of the photoelectric tube that shines below speed limit (PH302) output can't enter scrambler NS74147 at last to be recognized the location and opens multichannel and select an analog switch, thereby amplifier LM741 output terminal does not have automatically controlled signal output, controlled vehicle can be at the following cruising of speed limit, thereby reach bicycle Control for Speed Limitation purpose, help of the monitoring of traffic safety department vehicles peccancy.Realize this novel described standing interface and difference in functionality module---the relevant speed control assembly with car body of bicycle Control for Speed Limitation module is selected for use combination, and implement this novel auto-speed control function that proposes.
Used photoelectric device of the utility model Fig. 3 and integrated package are not limit by the drawing model, can adopt the device and the model of identical function yet.
A kind of novel speed of a motor vehicle meter that can export the real-time speed pulse signal of the utility model also can adapt to other motor vehicles that are used to adopt mechanical drive magnet-type speedometer except that automobile.
According to the utility model design and principle, the utility model also can be used as exterior component and adds and be retrofitted in the existing motor vehicles.
Claims (8)
1, a kind of speed of a motor vehicle meter that can export the real-time speed pulse signal has magnet-type speedometer structure, comprises the driving shaft flexible axle, and driving shaft, permanent magnet, iron bowl, speed indicator, speed of a motor vehicle display disc, hairspring is characterized in that also comprising:
One luminotron is installed on the speed indicator axle, and the light that is sent penetrates from this pointer tip end through described speed indicator along needle pivot, also can be by the pointer leaded light made from described fiber optic materials;
A plurality of light activated elements are installed in speed of a motor vehicle display disc card periphery and mark on the corresponding position with speed, and this light activated element is received from the light that described speed indicator sends, and produces electric impulse signal;
The output of one multichannel photoelectric commutator and described a plurality of light activated elements links;
One scrambler and interface are connected with the output of described multichannel photoelectric commutator respectively with a photo amplifier and interface, constitute standing interface, with output real-time speed pulse signal.
2, speed of a motor vehicle meter as claimed in claim 1 is characterized in that: have a gauge tap that is connected with luminotron, control switching on and off of luminotron at car body under signal and the external control signal effect about controlling.
3, as claim 1,2 described speed of a motor vehicle meters, it is characterized in that: the light beam incident direction over against luminotron in described photoelectric speed pointer is provided with one 45 ° of catoptrons, with the refraction of optical beam to the pointer end; Install a collector lens at the close end of described pointer, so that light beam is converged on the receiving plane that is incident upon described light activated element.
4, as claim 1,2 described speed of a motor vehicle meters, it is characterized in that: described light activated element can superimposedly be located at the speed mark place of speed of a motor vehicle display disc card, or is located on needle pivot axle center and the speed mark line or on the extended line of line.
5, a kind of speed of a motor vehicle meter of exportable real-time speed pulse signal has magnet-type speedometer structure, comprises driving shaft flexible axle, driving shaft, permanent magnet, iron bowl, speed indicator, speed of a motor vehicle display disc, hairspring, it is characterized in that also comprising:
One is equipped with the photoelectric speed pointer of 45 ° of catoptrons and collector lens, is installed under the speed of a motor vehicle display disc card and with it synchronous rotation coaxial, parallel with the former speed indicator of magnet-type speedometer;
One luminotron is installed on the speed indicator axle, and the light that is sent penetrates from this pointer tip end through described photoelectric speed pointer along needle pivot;
A plurality of light activated elements are installed in speed of a motor vehicle display disc card lower periphery and mark on the corresponding position with speed, and this light activated element is received from the light that described photoelectric speed pointer sends, and produces electric impulse signal;
One multichannel photoelectric commutator is connected with the output of described a plurality of light activated elements;
One scrambler and interface are connected with the output of described multichannel photoelectric commutator respectively with a photo amplifier and interface, constitute standing interface, with output real-time speed pulse signal.
6, speed of a motor vehicle meter as claimed in claim 5 is characterized in that: have a gauge tap that is connected with luminotron, control being switched on or switched off of luminotron at car body under signal and the external control signal effect about controlling.
7, as claim 5 or 6 described speed of a motor vehicle meters, it is characterized in that: the output of described scrambler and interface can be connected with the speed record display, shows the speed of a motor vehicle with automatic record.
8, the speed of a motor vehicle meter described in claim 7, it is characterized in that: also comprise a remote signal receiver, this receiver is with the signal input coding device and the interface that receive, ending or gating of control luminotron light signal and photoelectric tube level signal, so that described speed of a motor vehicle meter is under the remote signal effect, from the output terminal output automatically controlled signal of photo amplifier and interface, this automatically controlled signal may command car body has ignition switch, oil pump, valve etc. now, makes parking of automobile or deceleration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93217142 CN2201667Y (en) | 1992-07-08 | 1993-06-28 | Vehicle speed meter having real time speed pulse signal output |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92227430.4 | 1992-07-08 | ||
| CN92227430 | 1992-07-08 | ||
| CN 93217142 CN2201667Y (en) | 1992-07-08 | 1993-06-28 | Vehicle speed meter having real time speed pulse signal output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2201667Y true CN2201667Y (en) | 1995-06-21 |
Family
ID=34065219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93217142 Expired - Fee Related CN2201667Y (en) | 1992-07-08 | 1993-06-28 | Vehicle speed meter having real time speed pulse signal output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2201667Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773637A (en) * | 2016-12-28 | 2017-05-31 | 歌尔科技有限公司 | The method of intelligent watch and its setting time with indicator and indicator drive mechanism |
| CN110411495A (en) * | 2018-12-14 | 2019-11-05 | 李建平 | A kind of comparison expression direct-reading gauge table |
-
1993
- 1993-06-28 CN CN 93217142 patent/CN2201667Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773637A (en) * | 2016-12-28 | 2017-05-31 | 歌尔科技有限公司 | The method of intelligent watch and its setting time with indicator and indicator drive mechanism |
| CN110411495A (en) * | 2018-12-14 | 2019-11-05 | 李建平 | A kind of comparison expression direct-reading gauge table |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |