CN203876653U - Wheel returning alarm device for parking of vehicle - Google Patents
Wheel returning alarm device for parking of vehicle Download PDFInfo
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- CN203876653U CN203876653U CN201420200255.8U CN201420200255U CN203876653U CN 203876653 U CN203876653 U CN 203876653U CN 201420200255 U CN201420200255 U CN 201420200255U CN 203876653 U CN203876653 U CN 203876653U
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- 239000003990 capacitor Substances 0.000 claims description 69
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- 230000006378 damage Effects 0.000 abstract description 6
- 239000000725 suspension Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
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Abstract
The utility model relates to a wheel returning alarm device for the parking of a vehicle. The device comprises a singlechip unit, a streering wheel corner sensor, a vehicle speed sensor, an audio processing unit, an audio frequency power amplifier unit, and a power supply unit for providing a working voltage for the wheel returning alarm device for the parking of the whole vehicle, wherein signal output terminals of the streering wheel corner sensor and the vehicle speed sensor are respectively connected with an input terminal of the singlechip unit; and an output terminal of the singlechip unit is connected with an input terminal of the audio processing unit, and an output terminal of the audio processing unit is connected with an input terminal of the audio frequency power amplifier unit. According to the device disclosed by the utility model, under the condition that wheels do not return when the vehicle parks, the device actively starts voice broadcast to remind a driver to return the wheels timely, so that the damage to the vehicle is reduced, and the safety of the vehicle is improved.
Description
Technical field
The utility model relates to a kind of mobile unit, relates in particular to a kind of parking of automobile wheel and returns positive alarm set.
Background technology
Along with the high speed development of China's automobile industry, automobile provides convenient and amenities of life efficiently to people, and it is lighter that simultaneously more electronic assistance aids allows your driving experience, and has also promoted your driving safety.
And at present, when automobile driver stops, not return positive situation very general for bearing circle, this wherein great majority be all some with brave, the very casual car owners of vehicle and horse.Such parking custom is very bad in fact, and often parking meeting damages vehicle like this.
On the one hand, if wheel is not just returning during parking, wheel can dragged steering track rod cannot return, and the gear of bearing circle and the tooth bar of steering track rod, also in strained condition, will cause these part accelerated weathering or distortion in the course of time simultaneously.
On the other hand, the in the situation that of orderly shutdown, suspension system is in relative relaxation state, and four suspensions are stressed average.And bearing circle is not just returning (wheel is not just returning) when stopping; the wheel of a lot of vehicles there will be an inclination angle; and suspension system will tilt to a direction; elastic support part in suspension, rubber cuff also have some rubber shock-absorbings in suspension system to be lined with a stress; allow them eat strength; normal return, although can not damage in the short time, the time has been grown and will cause certain injury to suspension system.If the yielding rubber pad in suspension system is aging, the swing arm of suspension or the junction of connecting rod just there will be frame amount, and frame amount is galling just more severe more, forms vicious circle.
In addition, during parking, bearing circle is not just returning, and except above two parts of meeting infringement, also can damage tire.Tire under normal circumstances, can keep the tyre surface stressed state that lands, when bearing circle does not return timing, and due to the existence of knuckle pin angle and the design of passenger vehicle tyre flare, tire be not exclusively that tyre surface lands, but tire shoulder and a part of tyre surface are stressed.Lateral wall pressure for tire is larger in this case, because lower tire side wall is relatively thin, if often allow like this tire unbanlence stressed, will accelerate the aging distortion of lower tire side wall, after the aging distortion of lower tire side wall, the situation generation that probably causes gas leakage or blow out.
On automobile, there is no a kind of alert device at present, during parking of automobile, can just not have back by active warning chaufeur wheel, by this custom parking meeting, to automobile, bring larger infringement and potential safety hazard for a long time.
Summary of the invention
When the utility model mainly solves original parking, automobile can not return positive information by active warning chaufeur wheel, does not return positive wheel parking meeting for a long time and brings larger infringement and the technical matters of potential safety hazard to automobile; Provide a kind of parking of automobile wheel to return positive alarm set, when parking of automobile, wheel does not return in positive situation and can initiatively send voice messaging prompting chaufeur time positive wheel in time, reduces vehicle damage, the safety that simultaneously improves vehicle.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises single machine unit, steering wheel angle sensor, car speed sensor, Audio Processing Unit and audio power amplifier unit and return the power subsystem unit that positive alarm set provides operating voltage for whole parking of automobile wheel, the signal output part of steering wheel angle sensor and car speed sensor is connected with the input end of described single machine unit respectively, the mouth of single machine unit is connected with the input end of described Audio Processing Unit, the mouth of Audio Processing Unit is connected with the input end of described audio power amplifier unit.During parking of automobile, the signal that car speed sensor detects is zero, the signal that now single machine unit just collects steering wheel angle sensor is processed, the signal of exporting by steering wheel angle sensor judges whether automotive wheel is just returning, if wheel does not just have back, single machine unit output control signal starts Audio Processing Unit output voice messaging, and after processing by audio power amplifier unit, carry out voice broadcast, as " please return positive wheel " etc., remind in time chaufeur to return on request positive wheel, thereby reduce the infringement to vehicle, also improve vehicle safety.
As preferably, described parking of automobile wheel returns positive alarm set and comprises indicator lamp alert circuit, and indicator lamp alert circuit is connected with described single machine unit.If during parking of automobile just there there is no back wheel, single machine unit output control signal starts indicator lamp alert circuit, lights indicator lamp.Existing voice reminder, has again light warning, works along both lines, and improves the reliability that wheel returns positive reminding alarm.
As preferably, described single machine unit comprises unit machine U1, and micro controller system U1 adopts M430F149 micro controller system; Described Audio Processing Unit comprises speech chip U2, and speech chip U2 adopts WT588D speech chip; 35 pin of the signal output part of described steering wheel angle sensor and micro controller system U1 are connected, 33 pin of the signal output part of described car speed sensor and micro controller system U1 are connected, 7 pin of speech chip U2,21 pin, 18 pin, 17 pin and 16 pin are connected with 2 pin, 3 pin, 4 pin, 5 pin and 6 pin of micro controller system U1 respectively, and 18 pin of speech chip U2,17 pin and 16 pin connect D3.3V voltage through resistance R 8, resistance R 7 and resistance R 6 respectively again.It is convenient to realize, and reliability is high.
As preferably, described audio power amplifier unit comprises audio-frequency power amplifier U3, and audio-frequency power amplifier U3 adopts TPA3123D2 audio-frequency power amplifier, 8 pin of described speech chip U2, one tunnel is connected with 5 pin of capacitor C 4 and audio-frequency power amplifier U3 through resistance R 2, another road is connected with 6 pin of capacitor C 5 and audio-frequency power amplifier U3 through resistance R 3, also has a road through the circuit parallel ground connection of resistance R 1 and capacitor C 1, the also contact of resistance R 2 and capacitor C 4 is through the circuit parallel ground connection of resistance R 9 and capacitor C 3, the also contact of resistance R 3 and capacitor C 5 is through the circuit parallel ground connection of resistance R 4 and capacitor C 2, 19 pin of audio-frequency power amplifier U3 and all connect+12V of 20 pin voltage, and the circuit parallel ground connection through chemical capacitor C6 and capacitor C 7, the 7 foot meridian capacitor C8 ground connection of audio-frequency power amplifier U3, the 11 foot meridian capacitor C9 ground connection of audio-frequency power amplifier U3, 8 pin of audio-frequency power amplifier U3 and the equal ground connection of 9 pin, 2 pin of audio-frequency power amplifier U3 are connected through 16 pin of resistance R 10 and micro controller system U1, 4 pin of audio-frequency power amplifier U3 are connected through 34 pin of resistance R 11 and micro controller system U1, resistance R 12, one end of resistance R 13 all meets voltage VDD, resistance R 12, the other end of resistance R 13 respectively with 17 pin of audio-frequency power amplifier U3, 18 pin are connected, resistance R 14, the equal ground connection in one end of resistance R 15, resistance R 14, the other end of resistance R 15 respectively with 17 pin of audio-frequency power amplifier U3, 18 pin are connected, 1 pin of audio-frequency power amplifier U3, 3 pin, 10 pin and all connect+12V of 12 pin voltage, 13 pin of audio-frequency power amplifier U3, 14 pin, 23 pin and the equal ground connection of 24 pin, and be connected with chemical capacitor C16 between 1 pin of audio-frequency power amplifier U3 and 13 pin, chemical capacitor C17, the circuit parallel of capacitor C 18 and capacitor C 19, between 16 pin of audio-frequency power amplifier U3 and 15 pin, be connected with capacitor C 10, 15 pin of audio-frequency power amplifier U3 are through inductance L 1, 1 pin of chemical capacitor C12 and loudspeaker U4 is connected, between 22 pin of audio-frequency power amplifier U3 and 21 pin, be connected with capacitor C 11, 22 pin of audio-frequency power amplifier U3 are through inductance L 2, 3 pin of chemical capacitor C13 and loudspeaker U4 are connected, the 2 pin ground connection of loudspeaker U4, the also contact of inductance L 1 and chemical capacitor C12 is through capacitor C 14 ground connection, the also contact of inductance L 2 and chemical capacitor C13 is through capacitor C 15 ground connection.Circuit is simple, and it is convenient to realize, and reports clear.
As preferably, described parking of automobile wheel returns positive alarm set and comprises indicator lamp alert circuit, and indicator lamp alert circuit is connected with described single machine unit; Described indicator lamp alert circuit comprises resistance R 5 and light-emitting diode D1, and 3 pin of the negative pole of light-emitting diode D1 and micro controller system U1 are connected, and the positive pole of light-emitting diode D1 is connected with one end of resistance R 5, another termination D3.3V voltage of resistance R 5.Circuit is simple, easy for installation, and light-emitting diode D1 can be inlaid on automobile instrument panel, directly perceived, clear.
As preferably, described power subsystem unit adopts rechargeable battery powered, and rechargeable battery is connected with automobile mounted storage battery.Under automobile starting state, Vehicular accumulator cell can charge to rechargeable battery, and the technical program is endure after automobile flameout, still can remind wheel just to return.
The beneficial effects of the utility model are: when parking of automobile, wheel does not return positive in the situation that, can initiatively carry out sound and light alarm, lights alarm lamp, and carry out voice broadcast, remind chaufeur to return in time positive wheel, thereby reduce the infringement to vehicle, the safety that improves vehicle.
Accompanying drawing explanation
Fig. 1 is a kind of circuit theory connection structure block diagram of the present utility model.
Fig. 2 is a kind of schematic circuit diagram of single machine unit in the utility model.
Fig. 3 is a kind of schematic circuit diagram of Audio Processing Unit and indicator lamp alert circuit in the utility model.
Fig. 4 is a kind of schematic circuit diagram of the utility model sound intermediate frequency power amplifier unit.
1. single machine unit in figure, 2. steering wheel angle sensor, 3. car speed sensor, 4. Audio Processing Unit, 5. audio power amplifier unit, 6. power subsystem unit, 7. indicator lamp alert circuit, 8. rechargeable battery, 9. Vehicular accumulator cell.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the parking of automobile wheel of the present embodiment returns positive alarm set, as shown in Figure 1, comprise single machine unit 1, steering wheel angle sensor 2, car speed sensor 3, Audio Processing Unit 4, audio power amplifier unit 5 and indicator lamp alert circuit 7 and return the power subsystem unit 6 that positive alarm set provides operating voltage for whole parking of automobile wheel, the signal output part of steering wheel angle sensor 2 and car speed sensor 3 is connected with the input end of single machine unit 1 respectively, the mouth of single machine unit 1 is connected with the input end of Audio Processing Unit 4 and indicator lamp alert circuit 7 respectively, the mouth of Audio Processing Unit 4 is connected with the input end of audio power amplifier unit 5.In the present embodiment, power subsystem unit 6 adopts rechargeable battery 8 power supplies, and rechargeable battery 8 is connected with automobile mounted storage battery 9.
As shown in Figure 2, Figure 3 and Figure 4, single machine unit 1 comprises unit machine U1 and peripheral circuit thereof, and micro controller system U1 adopts M430F149 micro controller system, and its peripheral circuit can be with reference to the work book of this chip; Audio Processing Unit 4 comprises speech chip U2, and speech chip U2 adopts WT588D speech chip; Audio power amplifier unit 5 comprises audio-frequency power amplifier U3, and audio-frequency power amplifier U3 adopts TPA3123D2 audio-frequency power amplifier.35 pin of the signal output part of steering wheel angle sensor 2 and micro controller system U1 are connected, 33 pin of the signal output part of car speed sensor 3 and micro controller system U1 are connected, 7 pin of speech chip U2,21 pin, 18 pin, 17 pin and 16 pin are connected with 2 pin, 3 pin, 4 pin, 5 pin and 6 pin of micro controller system U1 respectively, and 18 pin of speech chip U2,17 pin and 16 pin connect D3.3V voltage through resistance R 8, resistance R 7 and resistance R 6 respectively again.8 pin of speech chip U2, one tunnel is connected with 5 pin of capacitor C 4 and audio-frequency power amplifier U3 through resistance R 2, another road is connected with 6 pin of capacitor C 5 and audio-frequency power amplifier U3 through resistance R 3, also has a road through the circuit parallel ground connection of resistance R 1 and capacitor C 1, the also contact of resistance R 2 and capacitor C 4 is through the circuit parallel ground connection of resistance R 9 and capacitor C 3, the also contact of resistance R 3 and capacitor C 5 is through the circuit parallel ground connection of resistance R 4 and capacitor C 2, 19 pin of audio-frequency power amplifier U3 and all connect+12V of 20 pin voltage, and the circuit parallel ground connection through chemical capacitor C6 and capacitor C 7, the 7 foot meridian capacitor C8 ground connection of audio-frequency power amplifier U3, the 11 foot meridian capacitor C9 ground connection of audio-frequency power amplifier U3, 8 pin of audio-frequency power amplifier U3 and the equal ground connection of 9 pin, 2 pin of audio-frequency power amplifier U3 are connected through 16 pin of resistance R 10 and micro controller system U1, 4 pin of audio-frequency power amplifier U3 are connected through 34 pin of resistance R 11 and micro controller system U1, resistance R 12, one end of resistance R 13 all meets voltage VDD, resistance R 12, the other end of resistance R 13 respectively with 17 pin of audio-frequency power amplifier U3, 18 pin are connected, resistance R 14, the equal ground connection in one end of resistance R 15, resistance R 14, the other end of resistance R 15 respectively with 17 pin of audio-frequency power amplifier U3, 18 pin are connected, 1 pin of audio-frequency power amplifier U3, 3 pin, 10 pin and all connect+12V of 12 pin voltage, 13 pin of audio-frequency power amplifier U3, 14 pin, 23 pin and the equal ground connection of 24 pin, and be connected with chemical capacitor C16 between 1 pin of audio-frequency power amplifier U3 and 13 pin, chemical capacitor C17, the circuit parallel of capacitor C 18 and capacitor C 19, between 16 pin of audio-frequency power amplifier U3 and 15 pin, be connected with capacitor C 10, 15 pin of audio-frequency power amplifier U3 are through inductance L 1, 1 pin of chemical capacitor C12 and loudspeaker U4 is connected, between 22 pin of audio-frequency power amplifier U3 and 21 pin, be connected with capacitor C 11, 22 pin of audio-frequency power amplifier U3 are through inductance L 2, 3 pin of chemical capacitor C13 and loudspeaker U4 are connected, the 2 pin ground connection of loudspeaker U4, the also contact of inductance L 1 and chemical capacitor C12 is through capacitor C 14 ground connection, the also contact of inductance L 2 and chemical capacitor C13 is through capacitor C 15 ground connection.Indicator lamp alert circuit 7 comprises resistance R 5 and light-emitting diode D1, and 3 pin of the negative pole of light-emitting diode D1 and micro controller system U1 are connected, and the positive pole of light-emitting diode D1 is connected with one end of resistance R 5, another termination D3.3V voltage of resistance R 5.
Working process: during parking of automobile, the signal that car speed sensor detects is zero, the signal that now micro controller system just collects steering wheel angle sensor is processed, the signal of exporting by steering wheel angle sensor judges whether automotive wheel is just returning, if wheel does not just have back, micro controller system is exported respectively control signal startup Audio Processing Unit and indicator lamp alert circuit, Audio Processing Unit output voice messaging, after processing by audio power amplifier unit again, carry out voice broadcast, as " please return positive wheel " or " wheel does not just return " etc., indicator lamp alert circuit is lighted light-emitting diode after starting, carry out sound and light alarm simultaneously, remind in time chaufeur to return on request positive wheel, thereby reduce the infringement to vehicle, also improve vehicle safety.
Claims (6)
1. a parking of automobile wheel returns positive alarm set, it is characterized in that comprising single machine unit (1), steering wheel angle sensor (2), car speed sensor (3), Audio Processing Unit (4) and audio power amplifier unit (5) and return the power subsystem unit (6) that positive alarm set provides operating voltage for whole parking of automobile wheel, the signal output part of steering wheel angle sensor (2) and car speed sensor (3) is connected with the input end of described single machine unit (1) respectively, the input end of the mouth of single machine unit (1) and described Audio Processing Unit (4) is connected, the input end of the mouth of Audio Processing Unit (4) and described audio power amplifier unit (5) is connected.
2. parking of automobile wheel according to claim 1 returns positive alarm set, it is characterized in that comprising indicator lamp alert circuit (7), and indicator lamp alert circuit (7) is connected with described single machine unit (1).
3. parking of automobile wheel according to claim 1 returns positive alarm set, it is characterized in that described single machine unit (1) comprises unit machine U1, and micro controller system U1 adopts M430F149 micro controller system; Described Audio Processing Unit (4) comprises speech chip U2, and speech chip U2 adopts WT588D speech chip; The signal output part of described steering wheel angle sensor (2) is connected with 35 pin of micro controller system U1, the signal output part of described car speed sensor (3) is connected with 33 pin of micro controller system U1,7 pin of speech chip U2,21 pin, 18 pin, 17 pin and 16 pin are connected with 2 pin, 3 pin, 4 pin, 5 pin and 6 pin of micro controller system U1 respectively, and 18 pin of speech chip U2,17 pin and 16 pin connect D3.3V voltage through resistance R 8, resistance R 7 and resistance R 6 respectively again.
4. parking of automobile wheel according to claim 3 returns positive alarm set, it is characterized in that described audio power amplifier unit (5) comprises audio-frequency power amplifier U3, and audio-frequency power amplifier U3 adopts TPA3123D2 audio-frequency power amplifier, 8 pin of described speech chip U2, one tunnel is connected with 5 pin of capacitor C 4 and audio-frequency power amplifier U3 through resistance R 2, another road is connected with 6 pin of capacitor C 5 and audio-frequency power amplifier U3 through resistance R 3, also has a road through the circuit parallel ground connection of resistance R 1 and capacitor C 1, the also contact of resistance R 2 and capacitor C 4 is through the circuit parallel ground connection of resistance R 9 and capacitor C 3, the also contact of resistance R 3 and capacitor C 5 is through the circuit parallel ground connection of resistance R 4 and capacitor C 2, 19 pin of audio-frequency power amplifier U3 and all connect+12V of 20 pin voltage, and the circuit parallel ground connection through chemical capacitor C6 and capacitor C 7, the 7 foot meridian capacitor C8 ground connection of audio-frequency power amplifier U3, the 11 foot meridian capacitor C9 ground connection of audio-frequency power amplifier U3, 8 pin of audio-frequency power amplifier U3 and the equal ground connection of 9 pin, 2 pin of audio-frequency power amplifier U3 are connected through 16 pin of resistance R 10 and micro controller system U1, 4 pin of audio-frequency power amplifier U3 are connected through 34 pin of resistance R 11 and micro controller system U1, resistance R 12, one end of resistance R 13 all meets voltage VDD, resistance R 12, the other end of resistance R 13 respectively with 17 pin of audio-frequency power amplifier U3, 18 pin are connected, resistance R 14, the equal ground connection in one end of resistance R 15, resistance R 14, the other end of resistance R 15 respectively with 17 pin of audio-frequency power amplifier U3, 18 pin are connected, 1 pin of audio-frequency power amplifier U3, 3 pin, 10 pin and all connect+12V of 12 pin voltage, 13 pin of audio-frequency power amplifier U3, 14 pin, 23 pin and the equal ground connection of 24 pin, and be connected with chemical capacitor C16 between 1 pin of audio-frequency power amplifier U3 and 13 pin, chemical capacitor C17, the circuit parallel of capacitor C 18 and capacitor C 19, between 16 pin of audio-frequency power amplifier U3 and 15 pin, be connected with capacitor C 10, 15 pin of audio-frequency power amplifier U3 are through inductance L 1, 1 pin of chemical capacitor C12 and loudspeaker U4 is connected, between 22 pin of audio-frequency power amplifier U3 and 21 pin, be connected with capacitor C 11, 22 pin of audio-frequency power amplifier U3 are through inductance L 2, 3 pin of chemical capacitor C13 and loudspeaker U4 are connected, the 2 pin ground connection of loudspeaker U4, the also contact of inductance L 1 and chemical capacitor C12 is through capacitor C 14 ground connection, the also contact of inductance L 2 and chemical capacitor C13 is through capacitor C 15 ground connection.
5. according to the parking of automobile wheel described in claim 3 or 4, return positive alarm set, it is characterized in that comprising indicator lamp alert circuit (7), indicator lamp alert circuit (7) is connected with described single machine unit (1); Described indicator lamp alert circuit (7) comprises resistance R 5 and light-emitting diode D1, and 3 pin of the negative pole of light-emitting diode D1 and micro controller system U1 are connected, and the positive pole of light-emitting diode D1 is connected with one end of resistance R 5, another termination D3.3V voltage of resistance R 5.
6. according to the parking of automobile wheel described in claim 1 or 2 or 3, return positive alarm set, it is characterized in that described power subsystem unit (6) adopts rechargeable battery (8) power supply, rechargeable battery (8) is connected with automobile mounted storage battery (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200255.8U CN203876653U (en) | 2014-04-23 | 2014-04-23 | Wheel returning alarm device for parking of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200255.8U CN203876653U (en) | 2014-04-23 | 2014-04-23 | Wheel returning alarm device for parking of vehicle |
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| Publication Number | Publication Date |
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| CN203876653U true CN203876653U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200255.8U Expired - Fee Related CN203876653U (en) | 2014-04-23 | 2014-04-23 | Wheel returning alarm device for parking of vehicle |
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| CN (1) | CN203876653U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105151123A (en) * | 2015-09-07 | 2015-12-16 | 芜湖仅一机械有限公司 | Angle monitoring device for steering wheel of car in parking process |
| CN105197109A (en) * | 2015-09-30 | 2015-12-30 | 成都奥利斯机电有限公司 | Parking steering protecting and indicating device |
| CN105730507A (en) * | 2016-01-26 | 2016-07-06 | 万军 | Vehicle steering wheel correction prompting device |
| CN106585642A (en) * | 2017-01-25 | 2017-04-26 | 高楚颐 | Parking direction disc alignment prompt method and system |
| CN107914772A (en) * | 2017-10-30 | 2018-04-17 | 深圳依偎控股有限公司 | Based reminding method, device and the computer-readable recording medium of Automobile operation |
-
2014
- 2014-04-23 CN CN201420200255.8U patent/CN203876653U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105151123A (en) * | 2015-09-07 | 2015-12-16 | 芜湖仅一机械有限公司 | Angle monitoring device for steering wheel of car in parking process |
| CN105197109A (en) * | 2015-09-30 | 2015-12-30 | 成都奥利斯机电有限公司 | Parking steering protecting and indicating device |
| CN105730507A (en) * | 2016-01-26 | 2016-07-06 | 万军 | Vehicle steering wheel correction prompting device |
| CN106585642A (en) * | 2017-01-25 | 2017-04-26 | 高楚颐 | Parking direction disc alignment prompt method and system |
| CN107914772A (en) * | 2017-10-30 | 2018-04-17 | 深圳依偎控股有限公司 | Based reminding method, device and the computer-readable recording medium of Automobile operation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 |