CN209955942U - Safety belt wearing state identification and trapping device - Google Patents
Safety belt wearing state identification and trapping device Download PDFInfo
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- CN209955942U CN209955942U CN201920458355.3U CN201920458355U CN209955942U CN 209955942 U CN209955942 U CN 209955942U CN 201920458355 U CN201920458355 U CN 201920458355U CN 209955942 U CN209955942 U CN 209955942U
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Abstract
The utility model belongs to the traffic safety field, concretely relates to safety belt is worn and is tied state identification and lures to tie device. Including fast sensor of wheel, seat pressure sensor, safety belt hasp sensor, signal processor, ECU controller, USB charge mouthful and seat warning bee calling organ, the beneficial effects of the utility model are that: the safety belt wearing device can effectively remind a passenger of wearing the safety belt, and remind the passenger of a specific seat number of not wearing the safety belt through a loudspeaker and a display screen broadcasting mode, and simultaneously induce the passenger to wear the safety belt correctly and effectively through a mode of disconnecting a USB charging port power supply on the seat. The utility model discloses an ECU controller uses with the cooperation of signal processor and each sensor for the device reliability is high, and the popularity is wide, can effectively prevent the condition emergence of the false safety belt of fastening simultaneously.
Description
Technical Field
The utility model belongs to the traffic safety field, concretely relates to safety belt is worn and is tied state identification and lures to tie device.
Background
The safety belt as a passive safety device can protect the safety of a driver and passengers in the case of automobile collision, emergency braking and the like. Although safe driving behaviors are accepted by the masses, people with weak safety consciousness are not tied with safety belts or fake safety belts in real life. Therefore, most modern automobiles are equipped with a safety belt alarm device, and can prompt drivers and passengers in the form of sound or signal lamps when the safety belt is not fastened. Most of the safety belt alarm devices adopt a seat internal pressure sensor and a safety belt lock switch signal to judge whether a safety belt is fastened, but people can avoid the alarm by buckling a safety belt lock from the back or even purchasing redundant locks, so that the life safety of people in a vehicle is difficult to guarantee when emergency braking and collision accidents happen.
At present, in order to solve the problem, some technical schemes are designed to overcome, for example, the authorization publication number is: CN 101402348B discloses a method and system for inspecting wearing of a seat belt, which can detect the pressure, seat pressure and temperature of a buckle of the seat belt to determine whether the seat belt is worn, and can feed back the seat occupancy and the wearing of the seat belt by a passenger, but this solution does not solve the problem of false fastening of the seat belt, for example, the application publication number is: CN 102874210 a discloses a device for preventing a seat belt from being worn, which proposes to use an image recognition technology to determine whether the seat belt of a driver or a passenger is worn effectively, the method has accurate recognition and simple structure, but is easily affected by ambient light, when the light is insufficient, an additional lighting device is needed to supplement light, the range of the camera device is limited, if the method is popularized in a passenger car, especially a large passenger car, a plurality of devices are needed, so the cost is high, the data volume is large, and the requirement on a controller is high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming prior art's not enough, provides a safety belt and wears to tie state recognition and lure to tie the device for solve the passenger and do not tie or the false problem of tying the safety belt, not only the reliability is high, simple structure moreover, but the popularization is wide
The utility model provides an above-mentioned technical problem's technical scheme as follows: a safety belt wearing state recognition and trapping device comprises a wheel speed sensor, a seat pressure sensor, a safety belt lock catch sensor, a signal processor, an ECU controller, a USB charging port and a seat alarm buzzer,
the wheel speed sensor is electrically connected with the signal processor and is used for acquiring a vehicle speed signal;
the seat pressure sensor is arranged in the seat, is electrically connected with the signal processor and is used for acquiring the pressure condition of the seat;
the safety belt lock sensor is arranged in the lock of the safety belt, is electrically connected with the signal processor and is used for acquiring the lock condition of the seat;
the signal processor is electrically connected with the ECU controller and used for processing and transmitting the acquired signals to the ECU controller;
the USB charging port and the seat alarm buzzer are electrically connected with the ECU controller.
Furthermore, the USB charging port and the seat alarm buzzer are arranged in one-to-one correspondence with the seat.
Further, still include the safety belt encoder, the safety belt encoder sets up inside the safety belt coiler, is connected with the safety belt reel, the safety belt encoder with the signal processor electricity is connected for gather the rotation number of turns signal of safety belt reel.
Further, still include time-recorder, pronunciation chip and speaker, the time-recorder sets up inside the ECU controller, just speaker and pronunciation chip are connected with the time-recorder electricity in proper order.
And the display screen is electrically connected with the timer, and the timer is used for timing to reach set time, so that the ECU controller sends signals to control the loudspeaker and the display screen to output corresponding voice signals and video signals.
The utility model has the advantages that:
1. the safety belt can be effectively reminded to wear the safety belt, and the passengers who arrive at the specific seat numbers are reminded not to wear the safety belt in a broadcasting mode through the loudspeaker and the display screen;
2. not only can effectively urge the passengers to wear the safety belts, but also can effectively control the situation of false fastening of the safety belts;
3. the passenger is induced to correctly and effectively wear the safety belt by disconnecting the USB charging port power supply on the seat;
4. the device has simple structure, high reliability and wide popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a seat belt wearing state recognition and fastening inducement device according to an embodiment of the present invention;
fig. 2 is a flow chart illustrating the operation principle of the seat belt wearing state recognition and fastening inducing device according to the embodiment of the present invention.
Reference numerals:
1-wheel speed sensor; 2-seat pressure sensor; 3-a seat belt buckle sensor; 4-a seat belt encoder; 5-a signal processor; 6-an ECU controller; 7-a timer; 8-USB charging port; 9-seat alarm buzzer; 10-voice chip; 11-a loudspeaker; 12-display screen.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Examples
As shown in FIG. 1, the device for recognizing wearing state and inducing wearing of safety belt provided by the present invention comprises a wheel speed sensor 1, a seat pressure sensor 2, a safety belt lock sensor 3, a signal processor 5, an ECU controller 6, a USB charging port 8 and a seat alarm buzzer 9,
the wheel speed sensor 1 is electrically connected with the signal processor 5 and is used for collecting a driving speed signal of a vehicle, wherein the vehicle speed sensor adopts a 74HC573 electromagnetic sensor, and the signal can also be collected from a vehicle speedometer;
the seat pressure sensor 2 is arranged inside a seat cushion of the seat, electrically connected with the signal processor 5 and used for acquiring the pressure condition of the seat, when the vehicle speed signal acquired by the wheel speed sensor 1 is greater than 0, the seat pressure sensor 2 acquires the pressure signal of the seat, when the pressure signal of the seat is smaller than a set seat pressure threshold value F, the seat is indicated to be free of passengers, otherwise, the seat is provided with passengers, and the seat pressure threshold value F is set according to the actual condition, for example, 20 kg;
the safety belt lock sensor 3 is arranged inside the lock of the safety belt, is electrically connected with the signal processor 5 and is used for acquiring whether the seat lock is buckled or not;
the signal processor 5 is electrically connected with the ECU controller 6 and is used for transmitting the acquired vehicle speed signal and the acquired seat pressure signal to the ECU controller 6, and the model of the signal processor is TMS320F 28335;
the USB charging port 8 and the seat alarm buzzer 9 are electrically connected with the ECU controller 6, when the ECU controller 6 reads a signal transmitted by the signal processor 5 and transmitted by the safety belt lock sensor 3 on the seat with a passenger, whether the lock of the safety belt is locked is judged, if the safety belt is not locked, the corresponding seat alarm buzzer 9 rings, and meanwhile, the corresponding USB charging port 8 is powered off; otherwise, the passenger wearing the safety belt on the seat is judged. Wherein, the 2 models of seat pressure sensor that this utility model adopted are built-in pressure sensor of HX711, and 6 models of ECU controller are JT _ SECU _070_ 1002.
Further, the USB charging port 8 and the seat alarm buzzer 9 correspond to seats on the vehicle one by one, and each seat is provided with the corresponding USB charging port 8 and the corresponding seat alarm buzzer 9.
Further, the safety belt monitoring device further comprises a safety belt encoder 4, the safety belt encoder 4 is arranged inside a safety belt retractor and connected with a safety belt winding drum, the safety belt encoder 4 is electrically connected with a signal processor 5, circle number signals of winding drums in the retractor on a seat which is judged to be worn with the safety belt are collected, the collected circle number signals Q are compared with a preset threshold value beta in an ECU (electronic control unit) controller 6, wherein beta is preset according to different types of the safety belt in the vehicle, different installation positions of the safety belt, different seat structures and other factors, the circle number signals Q and the threshold value beta correspond to corresponding seats one by one, if Q is less than or equal to beta, the fact that the passenger safety belt on the seat is worn is judged, the ECU controller 6 sends out control signals to achieve power-off of a USB charging port 8 on the seat and enable a seat alarm buzzer 9 on the; if Q is larger than beta, the wearing of the passenger safety belt on the seat is judged to be effective, and the corresponding seat alarm buzzer 9 does not sound and the corresponding USB charging port 8 does not cut off the power.
Further, the threshold β set in the third step is in the range of (Δ N)a,ΔNb)，
Wherein, Δ NaThe seat of the vehicle has no passenger, and the maximum rotation number of turns of the retractor is obtained when the safety belt is buckled;
ΔNbthe minimum rotation number of turns of the retractor when the safety belt is buckled is that a passenger is in a seat of the vehicle;
rjis the radius (r) of the winding drum of the coilerj＞0)；NcThe number of winding turns of the safety belt on the coiler in the initial state (N)cGreater than 0), h is the thickness of the safety belt (h is greater than 0), LkaFor the theoretical extension length, L, of the seat belt with respect to the initial position when the seat belt buckle is fastened without a passenger for each seat of the vehiclekbA theoretical minimum extension of the belt with respect to the initial position when the belt buckle is engaged for each seat of the vehicle with a passenger, wherein the parameter LkaAnd LkbThe vehicle seat retractor is characterized in that epsilon is the maximum design error between the actual stretching length and the theoretical length of each seat retractor of the vehicle, and is determined by factors such as the size of a passenger, the structure of the seat, the arrangement position of a safety belt and the like.
Maximum rotation number delta N of winding device when seat is free of passenger and safety belt is buckledaMinimum rotation number delta N of retractor when seat is provided with passenger and safety belt is buckledbThe method specifically comprises the following steps:
initial position of seat belt: length L of safety belt wound on coilerc： Lc＝2πrjNc+πNch(Nc+1) (1)
Wherein r isjIs the radius (r) of the winding drum of the coilerj＞0)；NcThe number of winding turns of the safety belt on the coiler in the initial state (N)cIs more than 0), h is the thickness of the safety belt (h is more than 0),
when each seat of the vehicle is taken without passengers and the safety belt lock catch is buckled, the minimum length L of the safety belt wound on the coilera：La＝Lc-(Lka+ε) (2)
La＝2πrjNa+πNah(Na+1) (3)
Wherein L iskaThe theoretical stretching length of the safety belt relative to the initial position is obtained when each seat of the vehicle is free of passengers and the safety belt buckle is buckled; epsilon is the maximum design error between the actual stretching length and the theoretical length of each seat retractor of the vehicle;
Nafor the vehicle seat without passenger, when the safety belt lock catch is buckled, the safety belt on the coiler winds for the minimum number of turns (N)a>0)；
ΔNa＝Nc-Na(4)
The maximum rotation number delta N of the retractor when the safety belt is buckled and the passengers are not in the (1) to (4)a(0<Na<Nc)：
Maximum length L of safety belt wound on coiler when passenger is seated and safety belt buckle is buckleda： Lb＝Lc-(Lkb+ε) (6)
LkbA theoretical minimum extension length of the seat belt relative to the initial position when a passenger is present on each seat of the vehicle and the seat belt buckle is buckled;
the minimum rotation number delta N of the coiler when the passenger and the safety belt are buckledb(0<Na<Nc):
The same principle is that:
preferably, the electronic device further comprises a timer 7, a voice chip 10 and a loudspeaker 11, wherein the timer 7 is arranged inside the ECU controller 6, the loudspeaker 11 and the voice chip 10 are electrically connected with the timer 7 in sequence, after the timer 7 starts timing, when the timer 7 reaches T1, if a passenger who is not wearing or is not wearing a safety belt is present, the loudspeaker 11 reminds the passenger of wearing the safety belt to wear the safety belt in a voice mode and reminds the passenger of not wearing the safety belt correctly and being incapable of charging through the USB charging port 8, and the T1 time is set by the ECU controller 6 according to actual needs of the client.
Further, the intelligent safety belt charging system further comprises a display screen 12, the display screen 12 is electrically connected with the timer 7, the display module is UG-2864KSWLG01, when the timer 7 reaches T2, the ECU controller 6 displays the seat information which is acquired by the signal processor 5 and is used for wearing the safety belt or the fake wearing of the safety belt through the display screen 12 and notifies the seat information through the loudspeaker 11, and reminds passengers that the improper wearing of the safety belt cannot be charged through the USB charging port 8, wherein T2 is more than T1, and T2 can be automatically set according to actual conditions.
As shown in fig. 2, the working principle flow of the present invention is that when the vehicle is started and the vehicle speed is not 0, the ECU controller 6, the signal processor 5 and each sensor start to work, firstly the seat pressure sensor 2 starts to collect the pressure signal of the seat, if the pressure signal is less than the threshold F, it is determined that the seat is unoccupied, otherwise, it is determined that the seat is occupied, then the signal set on the seat belt buckle sensor 3 corresponding to the seat is collected, if the seat belt is buckled, it is determined that the seat belt is worn, meanwhile, the signal Q on the seat belt encoder 4 corresponding to the seat is collected again is compared with the threshold β, if the signal Q acquired by the seat belt encoder 4 is greater than the threshold β, it is determined that the seat belt is worn effectively, then the ECU controller 6 sends a signal to control the USB corresponding to the seat belt which the seat belt is worn effectively to have electricity and the corresponding buzzer, otherwise, the signal acquired by the seat belt buckle sensor 3 is not buckled, judging whether the seat is not tied or is tied in a false state, and simultaneously sounding a buzzer corresponding to the seat and reminding through a loudspeaker 11; on the other hand, when the time T of the timer 7 reaches the set time T1, the loudspeaker 11 reminds again, when the time T of the timer 7 reaches the time T2, the seat number of the unbuckled or fake-fastened seat belt is reported through the loudspeaker 11 and reminds again, meanwhile, the display screen 12 displays the seat number of the unbuckled or fake-fastened seat belt, and then the time T of the timer 7 is reset to zero and is counted again. The utility model discloses a speaker 11 reports, display screen 12 shows the seat number and the disconnection corresponds the USB of seat and charges modes such as mouth 8's power and induce the passenger effective correct safety belt of wearing to the safety belt appears not being tied in the mode prevention of public supervision, the condition of the safety belt of false tying, the potential safety hazard that effectively avoids this type of condition to bring, this utility model is with low costs, but the popularization is wide, easily promotes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. A safety belt wearing state recognizing and fastening inducing device is characterized in that: comprises a wheel speed sensor, a seat pressure sensor, a safety belt lock catch sensor, a signal processor, an ECU controller, a USB charging port and a seat alarm buzzer,
the wheel speed sensor is electrically connected with the signal processor and is used for acquiring a vehicle speed signal;
the seat pressure sensor is arranged in the seat, is electrically connected with the signal processor and is used for acquiring the pressure condition of the seat;
the safety belt lock sensor is arranged in the lock of the safety belt, is electrically connected with the signal processor and is used for acquiring the lock condition of the seat;
the signal processor is electrically connected with the ECU controller and is used for processing the acquired signals and transmitting the processed signals to the ECU controller;
the USB charging port and the seat alarm buzzer are electrically connected with the ECU controller.
2. The device for recognizing and trapping wearing state of a seat belt according to claim 1, wherein: the USB charging port and the seat alarm buzzer are arranged in one-to-one correspondence with the seat.
3. The device for recognizing and trapping wearing state of a seat belt according to claim 2, wherein: still include the safety belt encoder, the safety belt encoder sets up inside the safety belt coiler, is connected with the safety belt reel, the safety belt encoder with the signal processor electricity is connected for gather the rotation number of turns signal of safety belt reel.
4. The seatbelt wearing state recognizing and attaching induction device according to claim 2 or 3, wherein: still include time-recorder, pronunciation chip and speaker, the time-recorder sets up inside the ECU controller, just speaker and pronunciation chip are connected with the time-recorder electricity in proper order.
5. The device for recognizing and trapping wearing state of safety belt according to claim 4, wherein: the timer also comprises a display screen, and the display screen is electrically connected with the timer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920458355.3U CN209955942U (en) | 2019-04-04 | 2019-04-04 | Safety belt wearing state identification and trapping device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920458355.3U CN209955942U (en) | 2019-04-04 | 2019-04-04 | Safety belt wearing state identification and trapping device |
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| CN209955942U true CN209955942U (en) | 2020-01-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001571A (en) * | 2019-04-04 | 2019-07-12 | 潍柴(扬州)亚星新能源商用车有限公司 | It is device and method that a kind of safety belt based on usb charge control, which lures, |
| CN111688634A (en) * | 2020-07-20 | 2020-09-22 | 南京恒天领锐汽车有限公司 | Intelligent detection control strategy and system for passenger seat belt of passenger car |
| CN113752973A (en) * | 2021-09-14 | 2021-12-07 | 安徽安凯汽车股份有限公司 | Vehicle safety belt early warning control system |
-
2019
- 2019-04-04 CN CN201920458355.3U patent/CN209955942U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001571A (en) * | 2019-04-04 | 2019-07-12 | 潍柴(扬州)亚星新能源商用车有限公司 | It is device and method that a kind of safety belt based on usb charge control, which lures, |
| CN110001571B (en) * | 2019-04-04 | 2020-12-15 | 潍柴(扬州)亚星新能源商用车有限公司 | Safety belt fastening device and method based on usb charging control |
| CN111688634A (en) * | 2020-07-20 | 2020-09-22 | 南京恒天领锐汽车有限公司 | Intelligent detection control strategy and system for passenger seat belt of passenger car |
| CN113752973A (en) * | 2021-09-14 | 2021-12-07 | 安徽安凯汽车股份有限公司 | Vehicle safety belt early warning control system |
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