CN103123749B - A kind of vehicle-mounted emergency alarm device based on sense of touch - Google Patents
A kind of vehicle-mounted emergency alarm device based on sense of touch Download PDFInfo
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- CN103123749B CN103123749B CN201110370011.5A CN201110370011A CN103123749B CN 103123749 B CN103123749 B CN 103123749B CN 201110370011 A CN201110370011 A CN 201110370011A CN 103123749 B CN103123749 B CN 103123749B
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Abstract
The invention discloses a kind of vehicle-mounted emergency alarm device based on sense of touch, comprising: communication module, for gathering the car load security information in car load operational process; Control module, for receiving the car load security information from communication module, judge that the running status of car load is to obtain the probability of car load generation security incident according to car load security information, when the probability of car load generation security incident is equal to or higher than accident probability threshold value, send warning enabling signal; Driver module, for after receiving warning enabling signal, the output voltage according to the Vehicular accumulator cell of car load generates driving voltage; Vibration module, under the driving of driving voltage, produces vibration with the driver's alarm condition notifying car load according to the driver of preset frequency to car load.The present invention can when judging to occur security incident, and the vibration producing preset frequency, with the mode alerting driver by sense of touch, makes driver make a response fast, thus reduces 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 occurs a large amount of accidents and injures and deaths event.In order to avoid or the generation of minimizing accident, make different riving conditions and this mobilism degree of vehicle drive high and under unpredictalbe operating environment, ensure the safety of the person and property, dissimilar automobile all can mounting vehicle running state detecting device.Travel condition of vehicle pick-up unit can the information of monitor vehicle surrounding environment, thus can predict the danger that may occur in vehicle operation and make driver and warn in advance.
The mode that traditional travel condition of vehicle pick-up unit gives a warning comprises: sound, light and image etc.Because driver needs to make extremely strong real-time reaction to unsafe condition, even if warning postpones the very short time or driver fails to react in time, just probably accident is caused to occur.But the mankind are longer for the reaction time of vision, audible signal, probably cannot make at crucial moment and operating timely.On the other hand, due to the requirement of safety and precise manipulation, the vision of driver should be exclusive in essence.But in actual applications, driver has to switch the vision visual field continually to realize operation and controls, thus probably causes the delay in reaction time, and then the possibility that the accident that adds occurs.In addition, the type of alarm of traditional sound, light and image requires high to driver attention and working strength.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency, a kind of vehicle-mounted emergency alarm device based on sense of touch of special proposition.
For achieving the above object, embodiments of the invention propose a kind of vehicle-mounted emergency alarm device based on sense of touch, and comprise communication module, described communication module is for gathering the car load security information in car load operational process; Control module, described control module is connected with described communication module, for receiving the described car load security information from described communication module, judge that the running status of described car load is to obtain the probability of described car load generation security incident according to described car load security information, when the probability of described car load generation security incident is equal to or higher than accident probability threshold value, send warning enabling signal; Driver module, described driver module is connected with the Vehicular accumulator cell of described control module with described car load respectively, and for after receiving described warning enabling signal, the output voltage according to the Vehicular accumulator cell of described car load generates driving voltage; Vibration module, described vibration module is connected with described driver module, under the driving of described driving voltage, produces vibration with the driver's alarm condition notifying described car load according to the driver of preset frequency to described car load.
According to a kind of vehicle-mounted emergency alarm device based on sense of touch of the embodiment of the present invention, the running status of car load can be monitored, and when judging to occur security incident, produce the vibration of preset frequency with the mode alerting driver by sense of touch, driver can be made a response fast, substantially reduce the processing time of driver to emergency condition, increase the probability that driver makes timely and effective reaction, thus reduce accident rate, ensure the safety of life and property of driver.
In one embodiment of the invention, described communication module is communicated by controller local area network's CAN with described car load.
In one embodiment of the invention, described communication module comprises: CAN signal transceiver, for gathering the car load security information in described car load operational process, and described car load security information is sent to described CAN protocol controller; CAN protocol controller, for being sent to described control module by described car load security information.
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, for the electric signal of the Vehicular accumulator cell from described car load is carried out voltage transitions, and the electric signal after output voltage conversion, processing unit, under described processing unit is used for the driving of the electric signal after voltage transitions, receive the described car load security information from described CAN protocol controller and described accident probability threshold value is set, the running status of described car load is judged according to described car load security information, and according to the running state analysis of described car load the probability of car load generation security incident, and the probability of described car load generation security incident and described accident probability threshold value are compared, when the probability of described car load generation security incident is equal to or higher than accident probability threshold value, send 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 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, for rotating under the driving of described driving voltage; Gear train, described gear train is fixed on described brush direct current motor, for moving back and forth under the driving of described brush direct current motor; With sense of touch thimble, described sense of touch thimble is connected with described gear train, 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, for boosting to the output voltage of the Vehicular accumulator cell from described car load; H bridge driver element, described H bridge driver element is connected with described processing unit with described boosting unit respectively, for under the control of square-wave signal that sends at described processing unit, first via electric signal and the second road electric signal is exported according to the electric signal after the boosting from described boosting unit, wherein, described first via electric signal and described second road electric signal are alternating voltage.
In one embodiment of the invention, when described square-wave signal is high level, the magnitude of voltage of described first via electric signal is greater than the magnitude of voltage of described second road electric signal; When described square-wave signal is low level, the magnitude of voltage of described first via electric signal is less than the magnitude of voltage of described second road electric signal.
In one embodiment of the invention, described vibration module comprises: twin crystal flap-type piezoelectric ceramics, described twin crystal flap-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 second road electric signal is applied on described second piezoelectric ceramics; Sense of touch thimble, described sense of touch thimble is connected with described sheet metal, 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 is greater than the magnitude of voltage of described second road electric signal, described first piezoelectric ceramics extends, and described second piezoelectric ceramics shortens, and described sheet metal is bent downwardly.
In one embodiment of the invention, when the magnitude of voltage of described first via electric signal is less than the magnitude of voltage of described second road electric signal, described first piezoelectric ceramics shortens, and described second piezoelectric ceramics extends, and described sheet metal is bent upwards.
In one embodiment of the invention, on the described vibration module bearing circle that is arranged on described car load or driver's seat.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, 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 of the vehicle-mounted emergency alarm device based on sense of touch according to another embodiment of the present invention
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
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 operator by sense of touch passage, will greatly alleviate its working strength.Based on above-mentioned discovery, when vehicle foresees danger, the present invention proposes a kind of vehicle-mounted emergency alarm device based on sense of touch, makes warning by the mode of sense of touch to driver.
Describe the vehicle-mounted emergency alarm device based on sense of touch according to the embodiment of the present invention below with reference to Fig. 1, comprise communication module 1, control module 2, driver module 3 and vibration module 4, wherein, communication module 1 is for gathering the security information in car load operational process; Control module 2 is connected with communication module 1, for receiving the car load security information from communication module 1, judge that the running status of car load is to obtain the probability of car load generation security incident according to car load security information, when the probability of car load generation security incident is equal to or higher than accident probability threshold value, send warning enabling signal; Driver module 3 is connected with the Vehicular accumulator cell 5 of car load with control module 2 respectively, and for after receiving warning enabling signal, the output voltage according to the Vehicular accumulator cell of car load generates driving voltage; Vibration module 4 is connected with driver module 3, under the driving of driving voltage, produces vibration with the driver's alarm condition notifying described car load according to the driver of preset frequency to car load.
In one embodiment of the invention, vibration module 4 can be arranged on the optional position that driver can produce sense of touch.Such as, on vibration module 4 driver's seat that can be arranged on car load or bearing circle.Thus the vibration that vibration module 4 produces can pass to driver in time, makes a response in time to make driver.
According to the kind of the embodiment of the present invention vehicle-mounted emergency alarm device based on sense of touch, the running status of car load can be monitored, and when judging to occur security incident, produce the vibration of preset frequency with the mode alerting driver by sense of touch, driver can be made a response fast, substantially reduce the processing time of driver to emergency condition, increase the probability that driver makes timely and effective reaction, thus reduce accident rate, ensure the safety of life and property of driver.
Communication module 1 is linked in the CAN network of car load by CAN (ControllerAreaNetwork, controller local area network) bus, thus communication module 1 is communicated by CAN mode with car load.As shown in Figure 1, communication module 1 comprises CAN signal transceiver 11 and CAN protocol controller 12.CAN signal transceiver 11 gathers the car load security information in car load operational process, and wherein, car load security information comprises the various status informations in car load operational process.CAN protocol controller 12 receives the car load security information 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 the CAN network of car load by twisted-pair feeder mode.
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, carries out voltage transitions, export the electric signal after voltage transitions for the electric signal provided by Vehicular accumulator cell 5.The voltage transitions that Vehicular accumulator cell 5 provides by power supply unit 21 is processing unit 22, communication module 1 and the voltage needed for driver module 3,
Under the driving of the electric signal of processing unit 22 after voltage transitions, receive the car load security information from CAN protocol controller 12, and judge 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 car load and is in dangerous driving state or has fortuitous event to occur.Preset by accident probability threshold value in processing unit 22, the probability of the car load generation security incident of acquisition and accident probability threshold value compare by processing unit 22, when the probability of car load generation security incident is equal to or higher than accident probability threshold value, then processing unit 22 sends 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 driven by motor mechanical transmission component, convert the rotary motion of motor to vibration;
(2) deformation effect of twin crystal flap-type piezoelectric ceramics is utilized 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 crystal flap-type piezoelectric ceramics mode carry out haptic alert is described below in conjunction with Fig. 2 and Fig. 3.
As shown in Figure 2, driver module 3 is 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 processing unit 22 is by finding do not have emergency condition to the analysis of car load security information, when namely the probability of car load generation security incident is lower than accident probability threshold value, exporting constant is low level pwm signal.Now H bridge driver is closed, thus also can not be applied on brush direct current motor 41 by the output voltage of Vehicular accumulator cell 5, and brush direct current motor 41 does not work.
When processing unit 22 is by finding to send emergency condition to the analysis of car load security information, namely when the probability of car load generation security incident is equal to or higher than accident probability threshold value, processing unit 22 sends the pwm signal of preset frequency and dutycycle, this pwm signal can the switch of control H bridge driver, thus the output voltage of Vehicular accumulator cell 5 can be applied on the supply lines of brush direct current motor 41, thus brush direct current motor 41 is driven to rotate.Now, be driving voltage by the output voltage of Vehicular accumulator cell 5.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, the rotary motion of brush direct current motor 41 is converted to the to-and-fro movement according to specific direction by gear train 42.Under the drive of gear train 42, sense of touch thimble 43 moves back and forth, thus forms the vibration of preset frequency.The vibration of sense of touch thimble 43 can produce vibratory stimulation to the skin of driver, and then stimulates the sense of touch of driver, thus sends tactile alert to driver, informs the generation of driver's dangerous situation, makes driver make a response in time.In one embodiment of the invention, the control of the rotating speed to brush direct current motor 41 can be realized by the dutycycle of the pwm signal of controlled processing unit 22, and then control 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 3, driver module 3 comprises boosting unit 31 and H bridge driver element 32, and vibration module 4 comprises twin crystal flap-type piezoelectric ceramics and sense of touch thimble 43.Wherein, boosting unit 31 is connected with the Vehicular accumulator cell 5 of car load, and the output voltage for the Vehicular accumulator cell 5 by car load boosts, thus generation makes piezoelectric ceramics occur compared with the high voltage required for large deformation.H bridge driver element 32 is connected with processing unit 22 with boosting unit 31 respectively, under the control of square-wave signal that sends at processing unit 22, exports first via electric signal OUT1 and the second road electric signal OUT2 according to the electric signal after the boosting from boosting unit 31.Wherein, first via electric signal OUT1 and the second road electric signal OUT2 is alternating voltage.
Under the control of the square-wave signal that H bridge driver element 32 produces at processing unit 22, 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 that processing unit 22 exports is high level, the magnitude of voltage of first via electric signal OUT1 is greater than the magnitude of voltage of the second road electric signal OUT2.When the square-wave signal that processing unit 22 exports is low level, the magnitude of voltage of first via electric signal OUT1 is less than the magnitude of voltage of the second road electric signal OUT2.
Piezoelectric ceramics has inverse piezoelectric effect, and namely by applying the voltage identical with polarised direction on piezoelectric ceramics, piezoelectric ceramics can stretch out, otherwise then shrinks.In an embodiment of the present invention, twin crystal flap-type piezoelectric ceramics comprises the above-mentioned sheet metal 430 between the two of first piezoelectric ceramics 410, second piezoelectric ceramics 420 and position.In one embodiment of the invention, first piezoelectric ceramics 410 and second piezoelectric ceramics 420 are pasted onto 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 that H bridge driver element 32 exports 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 is greater than the magnitude of voltage of the second road electric signal OUT2, the first piezoelectric ceramics 410 be positioned at above sheet metal 430 extends, second piezoelectric ceramics 420 be positioned at below sheet metal 430 shortens, thus the sheet metal 430 be positioned between the two is bent downwardly.When the magnitude of voltage of first via electric signal OUT1 is less than the magnitude of voltage of the second road electric signal OUT2, the first piezoelectric ceramics 410 be positioned at above sheet metal 430 shortens, second piezoelectric ceramics 420 be positioned at below sheet metal 430 stretches out, thus the sheet metal 430 be positioned between the two is bent upwards.
Because square-wave signal is that high level and low level alternately occur, thus can make, first via electric signal OUT1 and the second road electric signal OUT2 is alternating voltage, and then is constantly changed by the voltage direction applied to twin crystal flap-type piezoelectric ceramics, makes sheet metal 430 produce reciprocal bending.Sense of touch thimble 43 is fixed on sheet metal 430, along with the to-and-fro movement of sheet metal 430, sense of touch thimble 43 is driven to move back and forth to produce vibratory stimulation to the skin of driver, and then stimulate the sense of touch of driver, thus tactile alert is sent to driver, inform the generation of driver's dangerous situation, make driver make a response in time.
In one embodiment of the invention, by the frequency of the square-wave signal of controlled processing unit 22, the frequency of alternating voltage can be controlled, thus control 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, the running status of car load can be monitored, and when judging to occur security incident, produce the vibration of preset frequency with the mode alerting driver by sense of touch, driver can be made a response fast, substantially reduce the processing time of driver to emergency condition, increase probability and reaction velocity that driver makes timely and effective reaction, alleviate the working strength of driver, thus reduce accident rate, ensure the safety of life and property of driver.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (11)
1., based on a vehicle-mounted emergency alarm device for sense of touch, it is characterized in that, comprising:
Communication module, described communication module is for gathering the car load security information in car load operational process;
Control module, described control module is connected with described communication module, for receiving the described car load security information from described communication module, judge that the running status of described car load is to obtain the probability of described car load generation security incident according to described car load security information, when the probability of described car load generation security incident is equal to or higher than accident probability threshold value, send warning enabling signal, wherein, described communication module comprises CAN protocol controller, described CAN protocol controller receives described car load security information, and described car load security information is sent to control module, described control module comprises processing unit, under the driving of the electric signal of described processing unit after voltage transitions, receive the described car load security information from described CAN protocol controller and described accident probability threshold value is set, the running status of described car load is judged according to described car load security information, and according to the running state analysis of described car load the probability of car load generation security incident, and the probability of described car load generation security incident and described accident probability threshold value are compared, when the probability of described car load generation security incident is equal to or higher than accident probability threshold value, send warning enabling signal,
Driver module, described driver module is connected with the Vehicular accumulator cell of described control module with described car load respectively, for after receiving described warning enabling signal, output voltage according to the Vehicular accumulator cell of described car load generates driving voltage, wherein, described driver module comprises: boosting unit, and described boosting unit is connected with the Vehicular accumulator cell of described car load, for boosting to the output voltage of the Vehicular accumulator cell from described car load; H bridge driver element, described H bridge driver element is connected with described processing unit with described boosting unit respectively, for under the control of square-wave signal that sends at described processing unit, first via electric signal and the second road electric signal is exported according to the electric signal after the boosting from described boosting unit, wherein, described first via electric signal and described second road electric signal are alternating voltage; With
Vibration module, described vibration module is connected with described driver module, for under the driving of described driving voltage, vibration is produced with the driver's alarm condition notifying described car load according to the driver of preset frequency to described car load, wherein, by described driver module and the described vibration module of different structure, utilize and adopt driven by motor mechanical transmission component, convert the rotary motion of motor to vibration, or utilize the deformation effect of twin crystal flap-type piezoelectric ceramics to produce vibration, wherein, described vibration module comprises: twin crystal flap-type piezoelectric ceramics, described twin crystal flap-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, described second road electric signal is applied on described second piezoelectric ceramics, sense of touch thimble, described sense of touch thimble is connected with described sheet metal, for vibrating under the drive of described sheet metal.
2., as claimed in claim 1 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, described communication module is communicated by controller local area network's CAN with described car load.
3., as claimed in claim 2 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, described communication module also comprises:
CAN signal transceiver, for gathering the car load security information in described car load operational process.
4., as claimed in claim 1 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, described control module also comprises:
Power supply unit, described power supply unit is connected with the Vehicular accumulator cell of described car load, for the electric signal of the Vehicular accumulator cell from described car load is carried out voltage transitions, and the electric signal after output voltage conversion.
5., as claimed in claim 4 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, described processing unit is 8 single-chip microcomputers.
6., as claimed in claim 1 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, described driver module is H bridge driver.
7., as claimed in claim 6 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, described vibration module comprises:
Brush direct current motor, described brush direct current motor is connected with described driver module, for rotating under the driving of described driving voltage;
Gear train, described gear train is fixed on described brush direct current motor, for moving back and forth under the driving of described brush direct current motor; With
Sense of touch thimble, described sense of touch thimble is connected with described gear train, for vibrating under the drive of described gear train.
8., as claimed in claim 1 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, when described square-wave signal is high level, the magnitude of voltage of described first via electric signal is greater than the magnitude of voltage of described second road electric signal;
When described square-wave signal is low level, the magnitude of voltage of described first via electric signal is less than the magnitude of voltage of described second road electric signal.
9. as claimed in claim 1 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, when the magnitude of voltage of described first via electric signal is greater than the magnitude of voltage of described second road electric signal, described first piezoelectric ceramics extends, described second piezoelectric ceramics shortens, and described sheet metal is bent downwardly.
10. as claimed in claim 1 based on the vehicle-mounted emergency alarm device of sense of touch, it is characterized in that, when the magnitude of voltage of described first via electric signal is less than the magnitude of voltage of described second road electric signal, described first piezoelectric ceramics shortens, described second piezoelectric ceramics extends, and described sheet metal is bent upwards.
11., as claimed in claim 1 based on the vehicle-mounted emergency alarm devices of sense of touch, is characterized in that, on the bearing circle that described vibration module is arranged on described car load or driver's seat.
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| CN106985827A (en) * | 2017-03-10 | 2017-07-28 | 华南理工大学 | Car seat vibrations alarming device and its vibrations alarming method for power under car networking environment |
| CN107895410B (en) * | 2017-11-08 | 2021-04-13 | 广东翼卡车联网服务有限公司 | Vehicle accident reporting processing method, storage device and vehicle-mounted terminal |
| CN108766122B (en) * | 2018-06-22 | 2020-06-05 | 常州轻工职业技术学院 | Device for improving English pronunciation quality by touch sense |
| 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 |
| EP3796543B1 (en) * | 2019-09-23 | 2023-09-20 | Mahle International GmbH | Method for operating a brushed direct current electric motor, data processing apparatus, computer program, computer-readable data carrier and a device |
| CN113581101B (en) * | 2021-08-31 | 2022-12-02 | 三一专用汽车有限责任公司 | Engineering vehicle accident detection processing method and device |
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