CN205292417U - Prevent early warning device that car turned on one's side - Google Patents
Prevent early warning device that car turned on one's side Download PDFInfo
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- CN205292417U CN205292417U CN201520937797.8U CN201520937797U CN205292417U CN 205292417 U CN205292417 U CN 205292417U CN 201520937797 U CN201520937797 U CN 201520937797U CN 205292417 U CN205292417 U CN 205292417U
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- acceleration signal
- car
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- warning device
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Abstract
The utility model discloses a prevent early warning device that car turned on one's side, including the control unit, slope measured module, voice unit, man -machine interaction module, memory cell and electrical unit, slope measured module is used for measuring automobilism in -process axial and fore -and -aft acceleration, man -machine interaction module includes input unit and output unit, and input unit is used for the input of car preset parameter, and output unit is used for showing the automobile state parameter, voice unit is used for alarm information's speech output, memory cell is used for saving the operating parameter of car, slope measured module, voice unit, man -machine interaction module and memory cell be the connection control unit respectively. The device is through gathering automobilism in -process slope state parameter signal in real time, and the analysis arouses the relation between each parameter that the car turned on one's side, declares the possibility that the car was turned on one's side in advance, and the suggestion driver in time takes precautionary measures, prevents the emergence of turning on one's side.
Description
Technical field
This utility model relates to automobile and installs full technical field, particularly to the prior-warning device of a kind of anti-vehicle side turning.
Background technology
Along with the increase of automobile pollution and improving constantly of automobile driving speed, the driving safety of automobile increasingly receives publicity, the running attitude monitoring system being currently based on various kinds of sensors and information processing system is progressively applied in the middle of all kinds of automobile, being obtained state of motion of vehicle by sensor in time and to judge in time be the important development direction of intelligent automobile, wherein vehicle side turning early warning is one of them. In automobile safety accident, vehicle side turning often oneself is brought very big loss, particularly high capacity waggon and tank car with other vehicles, how to reduce the rollover under vehicle travel situations and has become as the major issue that automotive safety must take into.
Utility model content
Technical problem to be solved in the utility model is in that to provide a kind of volume little, easy for installation, the prior-warning device of the anti-vehicle side turning that cost is low, can occur the probability of rollover to carry out anticipation in automobile according to the situation in car running process, remind driver to take preventive measures in time.
For solving above-mentioned technical problem, this utility model have employed the prior-warning device of a kind of anti-vehicle side turning, including control unit, tilt measurement module, voice unit, human-computer interaction module, memory element and power subsystem, described tilt measurement module is for measuring in car running process acceleration axially and longitudinally, described human-computer interaction module includes input block and output unit, input block is for the input of automobile preset parameter, output unit is used for display automobile state parameter, institute's speech units is for the voice output of warning message, described memory element is for storing the operational factor of automobile, described tilt measurement module, voice unit, human-computer interaction module and memory element connect control unit respectively.
Further, described tilt measurement module includes acceleration signal collecting unit, operation amplifier unit and A/D converting unit, the acceleration signal that acceleration signal collecting unit gathers sends into operation amplifier unit, described operation amplifier unit sends into A/D converting unit after acceleration signal is nursed one's health, and described A/D converting unit sends into control unit after being processed by acceleration signal.
Further, described acceleration signal collecting unit adopts twin-axis accelerometer ADXL203.
This utility model has the advantages that this device adopts ADXL203 double-axel acceleration sensor Real-time Collection motoring condition parameter signal, and signal is nursed one's health, change after be sent to microcontroller, analyze the relation between each parameter causing vehicle side turning, the probability of anticipation vehicle side turning, and provide information in time, prompting driver takes preventive measures in time, it is prevented that the generation of rollover; Having circuit structure simple, size is little, low in energy consumption, shock resistance and the good feature of vibratility.
Accompanying drawing explanation
Fig. 1 is this utility model system architecture diagram.
Fig. 2 is this utility model tilt measurement module circuit diagram.
In figure: 1, acceleration signal collecting unit; 2, operation amplifier unit; 3, A/D converting unit; 4, control unit.
Detailed description of the invention
As shown in Figure 1, prior-warning device for a kind of anti-vehicle side turning, including control unit, tilt measurement module, voice unit, human-computer interaction module, memory element and power subsystem, described tilt measurement module is for measuring in car running process acceleration axially and longitudinally, described human-computer interaction module includes input block and output unit, input block is for the input of automobile preset parameter, output unit is for the display of vehicle condition parameter, institute's speech units is for the voice output of warning message, described memory element is for storing the operational factor of automobile, tilt measurement module, voice unit, human-computer interaction module and memory element connect control unit respectively.
Described tilt measurement module includes acceleration signal collecting unit, operation amplifier unit and A/D converting unit, the acceleration signal that acceleration signal collecting unit gathers sends into operation amplifier unit, described operation amplifier unit sends into A/D converting unit after acceleration signal is nursed one's health, and described A/D converting unit sends into control unit after being processed by acceleration signal.
In this device, acceleration signal collecting unit adopts twin-axis accelerometer ADXL203, the axial and longitudinal acceleration for measurement automobile in real time; Input block adopts 4 �� 4 membrane keyboards that automobile wheel track, center of gravity are carried out input to the parameter such as floor height, load capacity and arranged; Control unit adopts MSP430F149 microprocessor, and real-time reception also processes data and the information of collection; Voice unit points out driver to take appropriate measures by voice mode; Output unit adopts LCD chromatic liquid crystal screen, it is achieved the display to parameter, information; Described memory element is for storing the operational factor of automobile, for the analysis of user.
As shown in Figure 2, described tilt measurement module includes acceleration signal collecting unit, operation amplifier unit and A/D converting unit, wherein acceleration signal collecting unit adopts the twin-axis accelerometer ADXL203 of ADI company, it it is a polysilicon surface micromachined transducer, being internally integrated signal conditioning circuit, when motor racing, axial or longitudinal direction acceleration can dynamically export at device Xout or Yout end with corresponding voltage signal. This acceleration transducer operation principle is to use gravity as input vector to determine the direction of object in space.
Differential capacitance in described tilt measurement module circuit, can to structure deflection measurement by independently fixing plate and movable mass connecting plate forms; Fixing plate, by 180 �� of anti-phase square wave drive, when acceleration makes beam deflect, makes differential capacitance unbalance, so that the amplitude of output square wave is proportional to acceleration;Then, phase demodulation technology is used signal to carry out rectification and determines the direction of acceleration. Operation amplifier unit adopts the high performance operational amplifier AD8608 that the speed of service is fast, can catch transient signal, by four-way amplifier, it is achieved signal condition, it may be achieved low maladjustment voltage, Low-bias Current, low noise rail-to-rail input/output.
When signals collecting and conditioning are digitized after completing processing, it are then input to control unit and process. Digitized processing adopts A/D converting unit, and described A/D converting unit adopts 12 SAR type A/D converter AD7887 of high-speed low-power-consumption, and its sample rate can reach 125ksps, and conversion work frequency is up to 2.5MHz; The input voltage range of AD7887 is the output voltage range of 0��3.3V, ADXL203 is 1.5��3.5V.
Described tilt measurement module is in the scope of gradient 90 ��, and precision can reach 0.01, and certainty of measurement is high; This device each unit all adopts low-power consumption, small package scale device, has high accuracy, high-performance, low cost, undersized feature.
Claims (3)
1. the prior-warning device of an anti-vehicle side turning, it is characterized in that: include control unit, tilt measurement module, voice unit, human-computer interaction module, memory element and power subsystem, described tilt measurement module is for measuring in car running process acceleration axially and longitudinally, described human-computer interaction module includes input block and output unit, input block is for the input of automobile preset parameter, output unit is used for display automobile state parameter, institute's speech units is for the voice output of warning message, described memory element is for storing the operational factor of automobile, described tilt measurement module, voice unit, human-computer interaction module and memory element connect control unit respectively.
2. the prior-warning device of anti-vehicle side turning according to claim 1, it is characterized in that: described tilt measurement module includes acceleration signal collecting unit, operation amplifier unit and A/D converting unit, the acceleration signal that acceleration signal collecting unit gathers sends into operation amplifier unit, described operation amplifier unit sends into A/D converting unit after acceleration signal is nursed one's health, and described A/D converting unit sends into control unit after being processed by acceleration signal.
3. the prior-warning device of anti-vehicle side turning according to claim 2, it is characterised in that: described acceleration signal collecting unit adopts twin-axis accelerometer ADXL203.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520937797.8U CN205292417U (en) | 2015-11-20 | 2015-11-20 | Prevent early warning device that car turned on one's side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520937797.8U CN205292417U (en) | 2015-11-20 | 2015-11-20 | Prevent early warning device that car turned on one's side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205292417U true CN205292417U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520937797.8U Expired - Fee Related CN205292417U (en) | 2015-11-20 | 2015-11-20 | Prevent early warning device that car turned on one's side |
Country Status (1)
| Country | Link |
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| CN (1) | CN205292417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398378A (en) * | 2015-11-20 | 2016-03-16 | 四川航达机电技术开发服务中心 | Early warning device with automobile lateral overturning preventing function |
-
2015
- 2015-11-20 CN CN201520937797.8U patent/CN205292417U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398378A (en) * | 2015-11-20 | 2016-03-16 | 四川航达机电技术开发服务中心 | Early warning device with automobile lateral overturning preventing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160608 Termination date: 20161120 |