CN106627474A - Motor vehicle intelligent safety belt based on single chip - Google Patents
Motor vehicle intelligent safety belt based on single chip Download PDFInfo
- Publication number
- CN106627474A CN106627474A CN201510732157.8A CN201510732157A CN106627474A CN 106627474 A CN106627474 A CN 106627474A CN 201510732157 A CN201510732157 A CN 201510732157A CN 106627474 A CN106627474 A CN 106627474A
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- CN
- China
- Prior art keywords
- safety belt
- seat belt
- single chip
- motor
- slideway
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/02—Semi-passive restraint systems, e.g. systems applied or removed automatically but not both ; Manual restraint systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention discloses a motor vehicle intelligent safety belt based on a single chip. After a motor vehicle is ignited, safety belts for a driver and passengers are automatically tied; therefore, a drawback that the driver and the passengers do not take the trouble to use the safety belts during driving and taking can be conveniently solved. The motor vehicle intelligent safety belt based on the single chip mainly comprises a single chip control module, a pulling type safety belt and a safety belt slide, wherein the single chip control module mainly comprises an AT89S52 single chip, a 5V stabilized voltage supply, two micro touch switches, two control keys, an infrared and pyroelectric sensor, a direct current stepping motor and a drive; after the single chip receives signals transmitted by the sensor, the switches and the keys, corresponding signals are generated to control positive and negative rotations and stopping of the motor so as to realize actions like tightening the safety belt, locking the safety belt and releasing the safety belt; the pulling type safety belt is provided with a pre-tightening device and a tension limiter so as to realize timely tightening and moderate releasing; and the safety belt slide is made of a rubber material, can be used for the safety belt to slide under the pulling of the motor and can be bent and sheared according to needs while in use.
Description
Technical field
The present invention relates to a set of intelligent apparatus based on Single-chip Controlling automobile safety belt automatic tieing and untieing.
Background technology
, used as the basic preventer that driver and crew are protected during collision scenario, its birth is earlier than automobile for seat belt.Early in 1885, seat belt occurred first and is applied on carriage, its objective is to prevent passenger from throwing from carriage.On May 20th, 1902, a racing driver was fastened oneself and companion on seat with a few root bark bands to prevent driver that racing car is thrown out of in running at high speed on the autodrome that New York is held.During contest, the automobile that they drive pours group of viewers because unexpected, causes two people to die, dozens injured, and this several racing drivers are escaped death by a hair's breadth due to the reason of belt.This few root bark band also just becomes the blank of car belt, and seat belt using first on automobile has just saved the life of user.
At present, in the world the canonical form of seat belt is the three-point safety belt of this invention of Neil, and this car belt started to be received by people in 1967.Neil this deliver in the U.S.《28000 unexpected reports》, wherein have recorded the domestic all traffic accidents for involving Volvo Cars of Sweden in 1966, according to data display, three-point safety belt reduces the injured probability of passenger in the case more than half, protects the life security of passenger.
As many as since emerging from seat belt, the seat belt up to 10,000,000 kilometers is put into the whole world more than in 1,000,000,000 automobiles, and its length be enough to be enclosed around terrestrial equator 250, or the round moon 13 times.But, it is most important that countless life are rescued because of it in 40 years, it was demonstrated that three-point safety belt is effective automotive safety equipment.
The content of the invention
Problems to be solved by the invention
Statistics shows that safety belt buckling free is the third-largest reason for causing road traffic death by accident, is only second to drive over the speed limit and drives when intoxicated.The purpose of the present invention is a set of intelligent apparatus for the automatic latch-release seat belt of motor vehicles driver and crew of research.Light a fire at the beginning when motor vehicles and fastened one's safety belt automatically to driver and crew, be that the life of numerous driver and crew brings strong guarantee, reduce traffic violation and road traffic death by accident.
Solution to problem
According to the present invention, after motor vehicles igniting, this device goes up electricity automatically, single-chip microcomputer is used as control core, the low and high level signal of the generations such as switch and button, infrared sensor and pyroelectric sensor can be received, and corresponding signal is sent to drive module, and the rotating and stopping of motor are controlled, the action such as tighten up, lock, releasing so as to realize seat belt.
Drawing and pulling type seat belt, with pre-tightening device and force limiter, the first moment occurred in accident without hesitation people's " pressing " on the seat, realization is tightened up in time.Then, moderately loosen, treat that impulsive force peak value is gone over, or people by air bag when can be protected, i.e., suitably loosen seat belt, it is to avoid to make one rib injured because pulling force is excessive.
In order to realize the general applicability of automatic belt, the present invention have selected two-point belt design, so as to simplified system, allow this system to be more easily applied to various vehicles.Seat belt slideway need to be installed on the edge that roof presses close to car door, and the material of slideway have selected the elastomeric material for being easy to bend, and the bending angle and fixing point in the middle of slideway can oneself adjustment as needed.The a little higher than steering wheel in slideway front end is advisable, and end needs to reach conventional security band bearing, and is provided with electronics lock, and a slide block is installed on slideway, and by Motor drive, traction seat belt is moved along slideway.
Wherein, slideway starting and terminal position be placed with it is micro- touch switch, seat belt dead bolt once touches the micro- of placement and touches switch, and motor will stop operating, and prevents from being damaged due to motor for a long time energization, that is, realize overwinding-proof function.
Invention effect
According to the present invention, this device can fasten one's safety belt to driver and crew automatically after motor vehicles igniting；When seat belt touches slideway starting and end micro- touches switch, motor stalls；When to untie, as long as pressing releasing button.Driver and crew dislike the disadvantage fastened the safety belt trouble and do not use of seat belts when the present invention can solve to drive a vehicle.
Description of the drawings
It is of the invention to illustrate by referring to the mode of accompanying drawing, wherein：
Fig. 1 is Intelligent Single-Chip Based type automobile safety belt system block diagram.
Fig. 2 is SCM peripheral wiring diagram.
Fig. 3 is software system function flow chart.
Fig. 4 is on-vehicle safety band ramp design figure.
Specific embodiment
Hereinafter, the specific embodiment of invention is explained in detail with reference to the accompanying drawings.
Fig. 1 illustrates the structure of the control system of SCM Based intelligent motor vehicle seat belt.
Wherein, AT89S52 single board computer is the core of control system；5V Voltage stabilizing modules are connected with single-chip microcomputer, and it can provide power supply for control system；Infrared sensor and pyroelectric sensor are connected with single-chip microcomputer, for detecting whether someone, and corresponding level signal is produced to single-chip microcomputer；Micro- to touch switch 1 and 2, control button 1 and 2 is also connected with single-chip microcomputer, control button 1 and 2 produces respectively signal that controlled motor rotates and reverse to single-chip microcomputer, micro- to touch switch for producing signal that motor stops to single-chip microcomputer；Motor drive module adopts L298N chips, is connected with single-chip microcomputer and motor respectively.
As mentioned above, after system electrification, infrared sensor and pyroelectric sensor detect someone, control button 1 and 2 is pressed, and safety belt lock whip graft contact it is micro- touch switch, when there is three cases above, corresponding signal is produced respectively to single-chip microcomputer, single-chip microcomputer produces again corresponding signal to drive module, the different output of drive module can directly the rotating of controlled motor with stop, realizing the tightening up of seat belt, lock and releasing.
Fig. 2 is SCM peripheral wiring diagram.
The most important element of this device is AT89S52 single-chip microcomputers, a kind of low-power consumption, the 8-digit microcontroller of high-performance CMOS 8 that it is produced by ATMEL, with 8K in-system programmable components Flsah memorizeies.Its periphery circuit mainly includes a few parts of clock circuit, reset circuit, LED and key circuit.Wherein clock circuit is the part being made up of electric capacity C5, C6 and crystal oscillator XTAL in figure, and respectively with the X1 of single-chip microcomputer, X2 pins are connected；Reset circuit is the part being made up of electric capacity C7, reset key RESET1 and resistance R1 shown in figure, is connected with the RST pins of single-chip microcomputer；8 LED of LED section connect respectively the P2 mouths of single-chip microcomputer；Button S1 and S2 are represented and micro- are touched switch 1 and 2, S3 and S4 represent control button 1 and 2.
As described above, pressing S1 and S2, level signal being produced respectively and giving single-chip microcomputer P2.2 and P2.3 mouth, finally controllable motor stops.When S3 is pressed, produce level and turn left to single-chip microcomputer P2.4 mouths, final controlled motor；When S4 is pressed, produce level and turn right to single-chip microcomputer P2.5 mouths, final controlled motor.
Fig. 3 represents software system flow chart.
Wherein, on car engine single-chip microcomputer after electricity, detect whether seat belt is located at initial position first, if not when seat belt is in initial position, motor traction safety brings back to initial position, when having button to press or sensor detects someone, motor, traction seat belt slides, after seat belt is reached home, once touching button (i.e. micro- to touch switch), motor stalls, seat belt can be fastened successfully.
If now pressing releasing button, motor then draws seat belt and slides back into original position, touch it is micro- touch switch after, motor stalls, seat belt can be released successfully.
Fig. 4 represents on-vehicle safety band ramp design figure.
Slideway is installed on the edge that roof presses close to car door, and the material of slideway have selected the elastomeric material for being easy to bend, and the bending angle and fixing point in the middle of slideway can oneself adjustment as needed.The a little higher than steering wheel in slideway front end is advisable, and end needs to reach conventional security band bearing.
One slide block is installed, motor is placed at ways-end, is connected with slide block by rope on slideway, by Motor drive, traction seat belt is moved along slideway.Ways-end is provided with electronics lock, and locker can be automatically locked when seat belt slides into end seat belt detecting.
Need to install one in seat opposite side seat belt bearing, the volume box of seat belt with belt lock catch identical lock is installed, so as to safe band coiling box directly can be installed on the safety belt lock buckle on the right side of driver's seat by lock.Seat belt is removed when such design also contributes to occur emergency or quickly during automatic locking plant failure, passenger is discharged.
Claims (4)
1. a kind of SCM Based motor vehicle intelligent seat belt, including single chip control module, drawing and pulling type seat belt, seat belt slideway, after detecting signal, by the rotating of Single-chip Controlling motor and stopping, traction seat belt slides along slideway, realizes automatic tightening, locking and the releasing of seat belt.
2. single chip control module according to claim 1, the 5V power voltage supplies that AT89S52 single board computer is produced by L7805 voltage stabilizings, after receiving infrared proximity transducer E18-80NK and pyroelectric sensor HC-SR501, micro- signal for touching switch and control button generation, send corresponding signal and give L298N chips, control DC stepper motor action.
3. drawing and pulling type seat belt according to claim 1, with pre-tightening device and force limiter, realizes tightening up in time and appropriateness is loosened.
4. seat belt slideway according to claim 1, it is made up of elastomeric material, cutting can be as needed bent when in use, pacify a slide block on slideway, can be slided along slideway by cable traction seat belt by motor, slideway two ends place respectively it is micro- touch switch, realize starting point, terminal motor automatic stop to prevent the pulleying of seat belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732157.8A CN106627474A (en) | 2015-11-02 | 2015-11-02 | Motor vehicle intelligent safety belt based on single chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732157.8A CN106627474A (en) | 2015-11-02 | 2015-11-02 | Motor vehicle intelligent safety belt based on single chip |
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| Publication Number | Publication Date |
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| CN106627474A true CN106627474A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510732157.8A Pending CN106627474A (en) | 2015-11-02 | 2015-11-02 | Motor vehicle intelligent safety belt based on single chip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110077357A (en) * | 2019-04-22 | 2019-08-02 | 三峡大学 | A kind of automatic belt |
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- 2015-11-02 CN CN201510732157.8A patent/CN106627474A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110077357A (en) * | 2019-04-22 | 2019-08-02 | 三峡大学 | A kind of automatic belt |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |