CN103123749A - Vehicle-carrying emergency alarming device based on tactile - Google Patents
Vehicle-carrying emergency alarming device based on tactile Download PDFInfo
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- CN103123749A CN103123749A CN2011103700115A CN201110370011A CN103123749A CN 103123749 A CN103123749 A CN 103123749A CN 2011103700115 A CN2011103700115 A CN 2011103700115A CN 201110370011 A CN201110370011 A CN 201110370011A CN 103123749 A CN103123749 A CN 103123749A
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- 238000004891 communication Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 9
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- 239000000919 ceramic Substances 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 23
- 241000446313 Lamella Species 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 8
- 230000004044 response Effects 0.000 abstract description 7
- 230000003213 activating effect Effects 0.000 abstract 2
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- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
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Abstract
The invention discloses a vehicle-carrying emergency alarming device based on tactile. The vehicle-carrying emergency alarming device based on tactile comprises a communication module, a controlling module, a driving module and a vibrating module. The communication module is used for collecting safety information of a whole vehicle in the running process of the whole vehicle. The controlling module is used for receiving safety information of the whole vehicle from the communication module, the accident rate of the whole vehicle is obtained by judging the running state of the whole vehicle according to the safety information of the whole vehicle, and alarming activating signal is sent when the accident rate of the whole vehicle is equal to or larger than the accident rate threshold. The driving module is used for generating driving voltage according to the output voltage of a vehicle-carrying storage battery of the whole vehicle after receiving the alarming activating signal. The vibrating module is used for vibrating a driver of the whole vehicle according to a preset frequency to inform the driver of the whole vehicle of the alarming state under the driving of the driving voltage. According to the vehicle-carrying emergency alarming device based on tactile, when an accident is judged to happen, vibration of the preset frequency is generated to alarm the driver through tactile, thereby the driver can response quickly to reduce the accident rate.
Description
Technical field
The present invention relates to field of automobile, particularly a kind of vehicle-mounted emergency alarm device based on sense of touch.
Background technology
Along with the raising of people's living standard, automobile becomes the main traffic instrument that people ride instead of walk, transport gradually, becomes the indispensable part of modern society.But the thing followed is a large amount of accidents and injures and deaths event to occur because of vehicle drive.For fear of or the generation of minimizing accident, make different riving conditions and this mobilism degree of vehicle drive is high and unpredictalbe operating environment under, guarantee the safety of the person and property, dissimilar automobile all can the mounting vehicle running state detecting device.The travel condition of vehicle pick-up unit can the monitor vehicle surrounding environment information, thereby can predict may occur in the vehicle operating process dangerous and the driver is made warning in advance.
The mode that traditional travel condition of vehicle pick-up unit gives a warning comprises: sound, light and image etc.Because the driver need to make extremely strong real-time reaction to unsafe condition, even warning postpones the very short time or the driver fails in time to react, just probably cause accident to occur.But the mankind are longer for the reaction time of vision, audible signal, probably can't make operation timely at crucial moment.On the other hand, due to safety and the accurately requirement of operation, driver's vision should be monopolized in essence.The driver has to switch continually the vision visual field and realizes that operation controls, thereby probably causes the delay in reaction time, and then has increased the possibility that accident occurs but in actual applications.In addition, the type of alarm of traditional sound, light and image requires high to driver's notice and working strength.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, proposes especially a kind of vehicle-mounted emergency alarm device based on sense of touch.
For achieving the above object, embodiments of the invention propose a kind of vehicle-mounted emergency alarm device based on sense of touch, comprise communication module, and described communication module is used for gathering the car load security information of car load operational process; Control module, described control module is connected with described communication module, be used for receiving the described car load security information from described communication module, judge that according to described car load security information the running status of described car load is to obtain the probability of described car load generation security incident, when the probability of described car load generation security incident is equal to or higher than the accident probability threshold value, send the warning enabling signal; Driver module, described driver module are connected with the Vehicular accumulator cell of described control module and described car load respectively, are used for after receiving described warning enabling signal, generate driving voltage according to the output voltage of the Vehicular accumulator cell of described car load; Vibration module, described vibration module is connected with described driver module, is used under the driving of described driving voltage, according to preset frequency, the driver of described car load is produced vibration to notify driver's alarm condition of described car load.
A kind of vehicle-mounted emergency alarm device based on sense of touch according to the embodiment of the present invention, can monitor the running status of car load, and when judgement may security incident occur, produce the vibration of preset frequency with the mode alerting driver by sense of touch, the driver can be made a response fast, greatly shortened the processing time of driver to emergency condition, increase the probability that the driver makes timely and effective reaction, thereby reduced accident rate, ensured driver's safety of life and property.
In one embodiment of the invention, described communication module and described car load communicate by controller local area network's CAN bus.
In one embodiment of the invention, described communication module comprises: the CAN signal transceiver is used for gathering the car load security information of described car load operational process, and described car load security information is sent to described CAN protocol controller; The CAN protocol controller is used for described car load security information is sent to described control module.
in one embodiment of the invention, described control module comprises: power supply unit, described power supply unit is connected with the Vehicular accumulator cell of described car load, is used for carrying out voltage transitions from the electric signal of the Vehicular accumulator cell of described car load, and the electric signal after the output voltage conversion, processing unit, described processing unit is used under the driving of the electric signal after voltage transitions, reception is from the described car load security information of described CAN protocol controller and described accident probability threshold value is set, running status according to the described car load of described car load security information judgement, and the probability of car load generation security incident according to the running state analysis of described car load, and probability and the described accident probability threshold value of described car load generation security incident compared, when the probability of described car load generation security incident is equal to or higher than the accident probability threshold value, send the warning enabling signal.
In one embodiment of the invention, described processing unit is 8 single-chip microcomputers.
In one embodiment of the invention, described driver module is the H bridge driver.
In one embodiment of the invention, described vibration module comprises: brush direct current motor, and described brush direct current motor is connected with described driver module, is used for rotating under the driving of described driving voltage; Gear train, described gear train are fixed on described brush direct current motor, are used for moving back and forth under the driving of described brush direct current motor; With the sense of touch thimble, described sense of touch thimble is connected with described gear train, is used for vibrating under the drive of described gear train.
In one embodiment of the invention, described driver module comprises: boosting unit, and described boosting unit is connected with the Vehicular accumulator cell of described car load, is used for the output voltage from the Vehicular accumulator cell of described car load is boosted; H bridge driver element, described H bridge driver element is connected with described processing unit with described boosting unit respectively, be used under the control of the square-wave signal that described processing unit sends, according to from the output first via electric signal of the electric signal after the boosting of described boosting unit and the second road electric signal, wherein, described first via electric signal and described the second road electric signal are alternating voltage.
In one embodiment of the invention, when described square-wave signal was high level, the magnitude of voltage of described first via electric signal was greater than the magnitude of voltage of described the second road electric signal; When described square-wave signal was low level, the magnitude of voltage of described first via electric signal was less than the magnitude of voltage of described the second road electric signal.
In one embodiment of the invention, described vibration module comprises: twin lamella type piezoelectric ceramics, described twin lamella type piezoelectric ceramics comprises first piezoelectric ceramics, second piezoelectric ceramics and sheet metal, wherein, described sheet metal is arranged between described first piezoelectric ceramics and second piezoelectric ceramics, and described first piezoelectric ceramics is identical with the polarised direction of second piezoelectric ceramics, described first via electric signal is applied on described first piezoelectric ceramics, and described the second road electric signal is applied on described second piezoelectric ceramics; The sense of touch thimble, described sense of touch thimble is connected with described sheet metal, is used for vibrating under the drive of described sheet metal.
In one embodiment of the invention, when the magnitude of voltage of described first via electric signal during greater than the magnitude of voltage of described the second road electric signal, described first piezoelectric ceramics elongation, described second piezoelectric ceramics shortens, and described sheet metal is bent downwardly.
In one embodiment of the invention, during less than the magnitude of voltage of described the second road electric signal, described first piezoelectric ceramics shortens when the magnitude of voltage of described first via electric signal, described second piezoelectric ceramics elongation, and described sheet metal is bent upwards.
In one embodiment of the invention, described vibration module is arranged on the bearing circle or driver's seat of described car load.
The aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or the additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is according to an embodiment of the invention based on the structural drawing of the vehicle-mounted emergency alarm device of sense of touch;
Fig. 2 is in accordance with another embodiment of the present invention based on the structural drawing of the vehicle-mounted emergency alarm device of sense of touch; With
Fig. 3 is the structural drawing based on the vehicle-mounted emergency alarm device of sense of touch of another embodiment according to the present invention
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
With reference to following description and accompanying drawing, these and other aspects of embodiments of the invention will be known.These describe and accompanying drawing in, specifically disclose some specific implementations in embodiments of the invention, represent to implement some modes of the principle of embodiments of the invention, still should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise spirit and interior all changes, modification and the equivalent of intension scope that falls into additional claims.
Due to the mankind for the reaction velocity of sense of touch far away higher than the reaction velocity to the sense of hearing, vision, if the extraneous information outside the main visual field can be passed to the operator by the sense of touch passage, will greatly alleviate its working strength.Based on above-mentioned discovery, in the situation that vehicle foresees danger, the present invention proposes a kind of vehicle-mounted emergency alarm device based on sense of touch, by the mode of sense of touch, the driver is made warning.
Below with reference to the vehicle-mounted emergency alarm device based on sense of touch of Fig. 1 description according to the embodiment of the present invention, comprise communication module 1, control module 2, driver module 3 and vibration module 4, wherein, communication module 1 is used for gathering the security information of car load operational process; Control module 2 is connected with communication module 1, be used for receiving the car load security information from communication module 1, judge that according to the car load security information running status of car load is to obtain the probability of car load generation security incident, when the probability of car load generation security incident is equal to or higher than the accident probability threshold value, send the warning enabling signal; Driver module 3 is connected with the Vehicular accumulator cell 5 of control module 2 and car load respectively, is used for after receiving the warning enabling signal, generates driving voltage according to the output voltage of the Vehicular accumulator cell of car load; Vibration module 4 is connected with driver module 3, is used under the driving of driving voltage, according to preset frequency, the driver of car load is produced vibration to notify driver's alarm condition of described car load.
In one embodiment of the invention, vibration module 4 can be arranged on the optional position that the driver can produce sense of touch.For example, vibration module 4 can be arranged on the driver's seat or bearing circle of car load.Thereby the vibration that vibration module 4 produces can in time pass to the driver, so that the driver in time makes a response.
According to the kind of the embodiment of the present invention vehicle-mounted emergency alarm device based on sense of touch, can monitor the running status of car load, and when judgement may security incident occur, produce the vibration of preset frequency with the mode alerting driver by sense of touch, the driver can be made a response fast, greatly shortened the processing time of driver to emergency condition, increase the probability that the driver makes timely and effective reaction, thereby reduced accident rate, ensured driver's safety of life and property.
Communication module 1 is linked in the CAN network of car load by CAN (Controller Area Network, controller local area network) bus, thereby communication module 1 communicates by the CAN bus mode with car load.As shown in Figure 1, communication module 1 comprises CAN signal transceiver 11 and CAN protocol controller 12.The car load security information that CAN signal transceiver 11 gathers in the car load operational process, wherein, the car load security information comprises the various status informations in the car load operational process.The car load security information that CAN protocol controller 12 receives from CAN signal transceiver 11, and above-mentioned car load security information is sent to control module 2.
In one embodiment of the invention, communication module 1 can access by the twisted-pair feeder mode CAN network of car load.
Control module 2 comprises power supply unit 21 and processing unit 22, and wherein, power supply unit 21 is connected with the Vehicular accumulator cell 5 of car load, and the electric signal that is used for Vehicular accumulator cell 5 is provided carries out voltage transitions, and output is through the electric signal after voltage transitions.The voltage transitions that power supply unit 21 provides Vehicular accumulator cell 5 is processing unit 22, communication module 1 and the required voltage of driver module 3,
Processing unit 22 receives the car load security information from CAN protocol controller 12 under the driving of the electric signal after voltage transitions, and judges the running status of car load according to this car load security information.Then, processing unit 22 is according to the probability of the running state analysis car load generation security incident of car load.Wherein, security incident comprises that car load is in the dangerous driving state or has unexpected situation to occur.Interior default by the accident probability threshold value at processing unit 22, processing unit 22 compares probability and the accident probability threshold value of the car load generation security incident of acquisition, when the probability of car load generation security incident was equal to or higher than the accident probability threshold value, processing unit 22 sent the warning enabling signal to driver module 3.
In one embodiment of the invention, processing unit 22 is 8 single-chip microcomputers.
The vehicle-mounted emergency alarm device based on sense of touch that the embodiment of the present invention provides provides two kinds of haptic alert modes:
(1) adopt the driven by motor mechanical transmission component, convert rotatablely moving of motor to vibration;
(2) utilize the deformation effect of twin lamella type piezoelectric ceramics to produce vibration.
According to the difference of haptic alert mode, the structure of driver module 3 and vibration module 4 is also different.Respectively the principle that motor mode and twin lamella type piezoelectric ceramics mode are carried out haptic alert is described below in conjunction with Fig. 3 and Fig. 4.
As shown in Figure 3, driver module 3 is the H bridge driver, and vibration module 4 comprises brush direct current motor 41, gear train 42 and sense of touch thimble 43.Wherein, driver module 3 is connected with Vehicular accumulator cell 5 with processing unit 22 respectively, and brush direct current motor 41 is connected with the output terminal of H bridge driver.Processing unit 22 can produce pwm signal.When the analysis of car load security information is found there is no emergency condition, i.e. the probability of car load generation security incident is during lower than the accident probability threshold value when processing unit 22, and exporting constant is low level pwm signal.This moment, the H bridge driver was closed, thereby also the output voltage of Vehicular accumulator cell 5 can be applied on brush direct current motor 41, and brush direct current motor 41 is not worked.
When processing unit 22 sends emergency condition by the analysis discovery to the car load security information, be that the probability of car load generation security incident is when being equal to or higher than the accident probability threshold value, processing unit 22 sends the pwm signal of preset frequency and dutycycle, this pwm signal can be controlled the switch of H bridge driver, thereby the output voltage of Vehicular accumulator cell 5 can be applied on the supply lines of brush direct current motor 41, thereby drive brush direct current motor 41 rotations.At this moment, the output voltage with Vehicular accumulator cell 5 is driving voltage.In other words, brush direct current motor 41 rotates under the driving of driving voltage.Gear train 42 is fixed on brush direct current motor 41, and sense of touch thimble 43 is connected with gear train 42.When rotating under the driving of brush direct current motor 41 at driving voltage, drive the to-and-fro movement that gear train 42 carries out according to specific direction.In other words, gear train 42 is converted to to-and-fro movement according to specific direction with rotatablely moving of brush direct current motor 41.Under the drive of gear train 42, sense of touch thimble 43 moves back and forth, thereby forms the vibration of preset frequency.The vibration of sense of touch thimble 43 can produce vibratory stimulation to driver's skin, and then stimulates driver's sense of touch, thereby the driver is sent tactile alert, informs the generation of driver's dangerous situation, makes the driver in time make a response.In one embodiment of the invention, the dutycycle of the pwm signal by controlled processing unit 22 can realize the control to the rotating speed of brush direct current motor 41, and then controls the vibration frequency of sense of touch thimble 43.
In one embodiment of the invention, gear train 42 can be cam mechanism or slider-crank mechanism.
As shown in Figure 4, driver module 3 comprises boosting unit 31 and H bridge driver element 32, and vibration module 4 comprises twin lamella type piezoelectric ceramics and sense of touch thimble 43.Wherein, boosting unit 31 is connected with the Vehicular accumulator cell 5 of car load, is used for the output voltage of the Vehicular accumulator cell 5 of car load is boosted, thereby produce, piezoelectric ceramics is occured than the needed high voltage of large deformation.H bridge driver element 32 is connected with processing unit 22 with boosting unit 31 respectively, is used under the control of the square-wave signal that processing unit 22 sends, according to from electric signal output first via electric signal OUT1 and the second road electric signal OUT2 after the boosting of boosting unit 31.Wherein, first via electric signal OUT1 and the second road electric signal OUT2 are alternating voltage.
H bridge driver element 32 is under the control of the square-wave signal that processing unit 22 produces, and the size of the first via electric signal OUT1 of output and the voltage of the second road electric signal OUT2 can change with the level of square-wave signal.
Particularly, when the square-wave signal of processing unit 22 outputs was high level, the magnitude of voltage of first via electric signal OUT1 was greater than the magnitude of voltage of the second road electric signal OUT2.When the square-wave signal of processing unit 22 outputs was low level, the magnitude of voltage of first via electric signal OUT1 was less than the magnitude of voltage of the second road electric signal OUT2.
Piezoelectric ceramics has inverse piezoelectric effect, and namely by apply the voltage identical with polarised direction on piezoelectric ceramics, piezoelectric ceramics can stretch out, otherwise shrinks.In an embodiment of the present invention, twin lamella type piezoelectric ceramics comprises first piezoelectric ceramics 410, second above-mentioned sheet metal 430 between the two of piezoelectric ceramics 420 and position.In one embodiment of the invention, first piezoelectric ceramics 410 and second piezoelectric ceramics 420 stick on the both sides up and down of sheet metal 430.Wherein, first piezoelectric ceramics 410 is identical with the polarised direction of second piezoelectric ceramics 420.The first via electric signal OUT1 of H bridge driver element 32 outputs is applied on first piezoelectric ceramics 410, and the second road electric signal OUT2 is applied on second piezoelectric ceramics 420.
When the magnitude of voltage of first via electric signal OUT1 during greater than the magnitude of voltage of the second road electric signal OUT2, be positioned at first piezoelectric ceramics 410 elongations of sheet metal 430 tops, be positioned at second piezoelectric ceramics, 420 shortenings of sheet metal 430 belows, thereby make the sheet metal 430 that is positioned between the two be bent downwardly.When the magnitude of voltage of first via electric signal OUT1 during less than the magnitude of voltage of the second road electric signal OUT2, be positioned at first piezoelectric ceramics 410 shortenings of sheet metal 430 tops, second piezoelectric ceramics 420 that is positioned at sheet metal 430 belows stretches out, thereby makes the sheet metal 430 that is positioned between the two be bent upwards.
Because square-wave signal is that high level and low level alternately occur, thereby can so that, first via electric signal OUT1 and the second road electric signal OUT2 are alternating voltage, and then constantly change by the voltage direction of applying for twin lamella type piezoelectric ceramics, make sheet metal 430 produce reciprocal bending.Sense of touch thimble 43 is fixed on sheet metal 430, to-and-fro movement along with sheet metal 430, driving sense of touch thimble 43 moves back and forth with the skin generation vibratory stimulation to the driver, and then the sense of touch that stimulates the driver, thereby the driver is sent tactile alert, inform the generation of driver's dangerous situation, make the driver in time make a response.
In one embodiment of the invention, the frequency of the square-wave signal by controlled processing unit 22 can be controlled the frequency of alternating voltage, thereby controls the vibration frequency of sense of touch thimble 43.
According to the kind of the embodiment of the present invention vehicle-mounted emergency alarm device based on sense of touch, can monitor the running status of car load, and when judgement may security incident occur, produce the vibration of preset frequency with the mode alerting driver by sense of touch, the driver can be made a response fast, greatly shortened the processing time of driver to emergency condition, increase probability and reaction velocity that the driver makes timely and effective reaction, alleviate driver's working strength, thereby reduced accident rate, ensured driver's safety of life and property.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (13)
1. the vehicle-mounted emergency alarm device based on sense of touch, is characterized in that, comprising:
Communication module, described communication module is used for gathering the car load security information of car load operational process;
Control module, described control module is connected with described communication module, be used for receiving the described car load security information from described communication module, judge that according to described car load security information the running status of described car load is to obtain the probability of described car load generation security incident, when the probability of described car load generation security incident is equal to or higher than the accident probability threshold value, send the warning enabling signal;
Driver module, described driver module are connected with the Vehicular accumulator cell of described control module and described car load respectively, are used for after receiving described warning enabling signal, generate driving voltage according to the output voltage of the Vehicular accumulator cell of described car load; With
Vibration module, described vibration module is connected with described driver module, is used under the driving of described driving voltage, according to preset frequency, the driver of described car load is produced vibration to notify driver's alarm condition of described car load.
2. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 1, is characterized in that, described communication module and described car load communicate by controller local area network's CAN bus.
3. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 2, is characterized in that, described communication module comprises:
The CAN signal transceiver is for the car load security information that gathers described car load operational process;
The CAN protocol controller is used for receiving described car load security information, and described car load security information is sent to described control module.
4. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 1, is characterized in that, described control module comprises:
Power supply unit, described power supply unit is connected with the Vehicular accumulator cell of described car load, is used for carrying out voltage transitions from the electric signal of the Vehicular accumulator cell of described car load, and the electric signal after the output voltage conversion;
processing unit, described processing unit is used under the driving of the electric signal after voltage transitions, reception is from the described car load security information of described CAN protocol controller and described accident probability threshold value is set, running status according to the described car load of described car load security information judgement, and the probability of car load generation security incident according to the running state analysis of described car load, and probability and the described accident probability threshold value of described car load generation security incident compared, when the probability of described car load generation security incident is equal to or higher than the accident probability threshold value, send the warning enabling signal.
5. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 4, is characterized in that, described processing unit is 8 single-chip microcomputers.
6. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 1, is characterized in that, described driver module is the H bridge driver.
7. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 6, is characterized in that, described vibration module comprises:
Brush direct current motor, described brush direct current motor is connected with described driver module, is used for rotating under the driving of described driving voltage;
Gear train, described gear train are fixed on described brush direct current motor, are used for moving back and forth under the driving of described brush direct current motor; With
The sense of touch thimble, described sense of touch thimble is connected with described gear train, is used for vibrating under the drive of described gear train.
8. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 1, is characterized in that, described driver module comprises:
Boosting unit, described boosting unit is connected with the Vehicular accumulator cell of described car load, is used for the output voltage from the Vehicular accumulator cell of described car load is boosted;
H bridge driver element, described H bridge driver element is connected with described processing unit with described boosting unit respectively, be used under the control of the square-wave signal that described processing unit sends, according to from the output first via electric signal of the electric signal after the boosting of described boosting unit and the second road electric signal, wherein, described first via electric signal and described the second road electric signal are alternating voltage.
9. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 8, is characterized in that, when described square-wave signal was high level, the magnitude of voltage of described first via electric signal was greater than the magnitude of voltage of described the second road electric signal;
When described square-wave signal was low level, the magnitude of voltage of described first via electric signal was less than the magnitude of voltage of described the second road electric signal.
10. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 9, is characterized in that, described vibration module comprises:
Twin lamella type piezoelectric ceramics, described twin lamella type piezoelectric ceramics comprises first piezoelectric ceramics, second piezoelectric ceramics and sheet metal, wherein, described sheet metal is arranged between described first piezoelectric ceramics and second piezoelectric ceramics, and described first piezoelectric ceramics is identical with the polarised direction of second piezoelectric ceramics, described first via electric signal is applied on described first piezoelectric ceramics, and described the second road electric signal is applied on described second piezoelectric ceramics;
The sense of touch thimble, described sense of touch thimble is connected with described sheet metal, is used for vibrating under the drive of described sheet metal.
11. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 10, it is characterized in that, when the magnitude of voltage of described first via electric signal during greater than the magnitude of voltage of described the second road electric signal, described first piezoelectric ceramics elongation, described second piezoelectric ceramics shortens, and described sheet metal is bent downwardly.
12. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 10, it is characterized in that, when the magnitude of voltage of described first via electric signal during less than the magnitude of voltage of described the second road electric signal, described first piezoelectric ceramics shortens, described second piezoelectric ceramics elongation, described sheet metal is bent upwards.
13. the vehicle-mounted emergency alarm device based on sense of touch as claimed in claim 1 is characterized in that described vibration module is arranged on the bearing circle or driver's seat of described car load.
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| CN107895410A (en) * | 2017-11-08 | 2018-04-10 | 广东翼卡车联网服务有限公司 | A kind of car accident report process method, storage device and car-mounted terminal |
| CN108766122A (en) * | 2018-06-22 | 2018-11-06 | 常州轻工职业技术学院 | A kind of device improving pronunciation of English quality with tactile |
| CN109118845A (en) * | 2018-10-15 | 2019-01-01 | 常州轻工职业技术学院 | A kind of device improving pronunciation of English quality with tactile |
| CN112636643A (en) * | 2019-09-23 | 2021-04-09 | 马勒国际有限公司 | Method for operating a brushed DC motor |
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