CN113071469B - Motor vehicle steering and braking alarm system based on RFID - Google Patents
Motor vehicle steering and braking alarm system based on RFID Download PDFInfo
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- CN113071469B CN113071469B CN202110368511.9A CN202110368511A CN113071469B CN 113071469 B CN113071469 B CN 113071469B CN 202110368511 A CN202110368511 A CN 202110368511A CN 113071469 B CN113071469 B CN 113071469B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/029—Steering assistants using warnings or proposing actions to the driver without influencing the steering system
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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Abstract
The invention discloses a motor vehicle steering and braking alarm system based on RFID (radio frequency identification), which comprises a trigger device, a first identification module and a switching module, wherein the trigger device comprises a first RFID label and a second RFID label which are arranged at the tail of a motor vehicle, the first identification module is arranged at the head of the motor vehicle, and the switching module is connected to the first identification module, the first RFID label and the second RFID label; the alarm device comprises a second identification module arranged at the tail of the motor vehicle, a processing module connected with the second identification module and an alarm module connected with the processing module, wherein the switching module is connected with the processing module, so that when a driver carries out automobile braking action, the switching module can timely find and give alarm instructions to the driver and surrounding vehicles, and accidents such as rear-end collision and the like caused by untimely braking of rear vehicles are prevented; when the braking action does not occur, the alarm module does not respond, so that the influence on a driver is avoided, and the driving safety is ensured.
Description
Technical Field
The invention relates to the technical field of motor vehicle safety, in particular to a motor vehicle steering and braking alarm system based on RFID.
Background
The safe driving of the automobile is a topic generally concerned by people today, road traffic accidents caused by the rapid increase of the number of automobiles are more and more due to the development of social economy, and the traffic safety is not only a civil problem but also a social problem and a political problem. When a user drives a motor vehicle, the vision of a driver of the motor vehicle is changed and the driving concentration degree is reduced due to the fact that the driver is influenced by different road conditions or drives for a long time, and the phenomena of lane departure, lane changing, turning forgetting to turn a turn light, emergency braking and the like easily occur when the driver drives the motor vehicle. If the user suddenly deflects the driving direction or suddenly stops, people behind the user are difficult to make judgment in time according to the tail lamp of the vehicle, traffic accidents such as rear-end collision and the like are easily caused, and life danger is brought to the user.
Disclosure of Invention
In view of the above, the present invention provides a motor vehicle steering and braking alarm system and method based on RFID, which collects driving states of a driving vehicle in real time by switching steering and braking to provide alarm information for driving safety.
In a first aspect, the present invention provides an RFID-based motor vehicle steering and braking alarm system, comprising:
the triggering device comprises a first RFID label and a second RFID label which are arranged at the tail of the motor vehicle, a first identification module arranged at the head of the motor vehicle, and a switching module connected to the first identification module, the first RFID label and the second RFID label;
the alarm device comprises a second identification module arranged at the tail of the motor vehicle, a processing module connected with the second identification module and an alarm module connected with the processing module, and the switching module is connected with the processing module;
when the processing module receives steering information of a steering wheel of a current motor vehicle, the switching module is controlled to be connected with the first RFID tag and send out first frequency, a first identification module of the motor vehicle behind the current motor vehicle receives the first frequency, and the processing module controls the alarm module to send out first alarm information corresponding to the steering information according to the first frequency;
when the processing module receives brake information of the current motor vehicle, the switching module is controlled to be connected with the second RFID tag and send out second frequency, a second identification module of an excited vehicle behind the current motor vehicle receives the second frequency, the processing module controls the alarm module to send out second alarm information corresponding to the brake information according to the second frequency, and the second frequency is larger than the first frequency.
As a further improvement of the above technical solution, the alarm module includes a light emitting unit and a voice broadcasting unit;
when the steering wheel of the motor vehicle steers, the processor converts the steering information into an electric signal, prompts the rotation direction through the light-emitting unit, and prompts the steering information to a driver through the voice broadcasting unit;
and judging whether the rear motor vehicle receives the first frequency to obtain the safe distance of the rear vehicle so as to prompt the driver of the angle of the rotating direction.
As a further improvement of the above technical solution, the alarm device further includes a timing module and a distance measuring module, the timing module is connected to the processing module and is used for controlling the time when the first RFID tag and the second RFID tag transmit corresponding frequencies, and the distance measuring module is used for calculating a distance between vehicles or generating a safe distance for the vehicles to travel according to the identified frequencies.
As a further improvement of the above technical solution, the method further comprises:
the collecting device is used for counting the driving states of multiple times of overtaking or lane changing of the vehicle within the preset time, and when the unsafe driving records in the driving states exceed the preset threshold value, the alarm module sends out a safety warning for reminding a driver of overtaking or lane changing frequently.
As a further improvement of the above technical solution, the collecting device comprises a plurality of RFID identification modules arranged around the lower part of the steering wheel of the vehicle, the steering RFID identification module is provided with 120 RFID identifications, the RFID identifications are arranged around the lower part of the steering wheel of the vehicle to form a complete circle, each RFID identification represents steering 3 degrees, the label sequence is clockwise numbered from right above the steering wheel of the vehicle, when the vehicle performs steering action, the steering RFID identification module rotates along with the steering wheel, the steering RFID identification module identifies the steering RFID identification module during the rotation process, the identification information with the identification number of the RFID identification is transmitted to the processing module, the left-turning degree or the right-turning degree of the vehicle is judged, and finally, an instruction is transmitted to the alarm indicating module;
the RFID identification module is provided with a camera module, the shooting range of the camera module is the same as the reading range of the RFID identification module, and the camera module is used for shooting the position of the RFID identification module. After the camera module takes a picture, the picture is sent to the processing module for judgment processing;
identifying and calculating two RFID (radio frequency identification) identifiers R in photonAnd Rn+1Size of area MnAnd Mn+1Here, the area of a complete RFID tag is M, the recognition range of the RFID tag recognition module and the shooting range of the camera module are also M, where n represents a tag number. The steering wheel is now turnedThe angle is as follows:
if M isnIf the steering wheel is equal to M, the steering angle of the steering wheel is determined;
Z＝(3*n-1.5)+360*x；
in the formula, x is the steering wheel turning number;
if M isn+1If the steering wheel is equal to M, the steering angle of the steering wheel is determined;
Z＝(3*(n+1)-1.5)*x；
in the formula, x is the steering wheel turning number;
if M isnNot equal to M and Mn+1If not equal to M, the steering wheel steering angle is determined;
in the formula, x is the steering wheel turning number;
the judgment rule of the number of turns is as follows: in a steering action of the steering wheel in the same direction, the steering RFID identification module identifies the RFID identification RnTwice is a circle, the steering RFID identification module identifies the RFID identification RnAnd the third time is two circles.
In a second aspect, the invention further provides a motor vehicle steering and braking alarm method based on RFID, which comprises the following steps:
s1: the vehicle is in a straight-line driving state;
s2: judging whether the vehicle is in a steering state, if not, not making any response; if yes, the flow proceeds to step S3:
s3: determining a direction in which the steering wheel is turned;
s4: calculating the steering angle of a steering wheel;
s5: the alarm device carries out steering alarm indication;
s6: ending the steering;
s7: the alarm indicates an end.
As a further improvement of the above technical solution, the method further comprises:
s11: the vehicle is in a normal running state and is not subjected to brake operation;
s22: and judging whether the vehicle is in a braking state or not. If yes, go to step S3; if not, no response is made;
s33: the indication reporting module carries out brake alarm indication;
s44: ending the braking action;
s55: the alarm indicates an end.
The invention has the beneficial effects that:
1. can discern the RFID label of place ahead or rear vehicle in order to obtain driving state through first identification module, second identification module, the steering wheel turns to and sends first frequency through first RFID label, and brake information sends the second frequency through the second RFID label, and the switching module is nimble to be switched and to connect the corresponding RFID label, and the suitability is strong and the timeliness is high.
2. When the vehicle turns to, the processing module can accurately identify the specific angle of the steering state and the steering of the vehicle by identifying the RFID identification through the steering RFID identification module and the picture shot by the camera device, so that the driver and surrounding vehicles can be timely reminded, and accidents such as rear-end collision, side collision and the like are avoided.
3. When a driver brakes the automobile, the automobile brake device can find and give alarm indication to the driver and surrounding vehicles in time, and prevents rear-end collisions and other accidents caused by untimely braking of rear vehicles; when the braking action does not occur, the alarm module does not respond, so that the influence on a driver is avoided, and the driving safety is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block diagram of an RFID-based motor vehicle steering and braking alarm system;
FIG. 2 is a flow chart of a vehicle steering warning indication;
FIG. 3 is a flow chart of a vehicle brake warning indication.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the present invention provides an RFID-based motor vehicle steering brake warning system, including:
the triggering device comprises a first RFID label and a second RFID label which are arranged at the tail of the motor vehicle, a first identification module arranged at the head of the motor vehicle, and a switching module connected to the first identification module, the first RFID label and the second RFID label;
the alarm device comprises a second identification module arranged at the tail of the motor vehicle, a processing module connected with the second identification module and an alarm module connected with the processing module, and the switching module is connected with the processing module;
when the processing module receives steering information of a steering wheel of a current motor vehicle, the switching module is controlled to be connected with the first RFID tag and send out first frequency, a first identification module of the motor vehicle behind the current motor vehicle receives the first frequency, and the processing module controls the alarm module to send out first alarm information corresponding to the steering information according to the first frequency;
when the processing module receives brake information of the current motor vehicle, the switching module is controlled to be connected with the second RFID tag and send out second frequency, a second identification module of an excited vehicle behind the current motor vehicle receives the second frequency, the processing module controls the alarm module to send out second alarm information corresponding to the brake information according to the second frequency, and the second frequency is larger than the first frequency.
In this embodiment, the alarm module includes a light emitting unit and a voice broadcasting unit;
when the steering wheel of the motor vehicle steers, the processor converts the steering information into an electric signal, prompts the rotation direction through the light-emitting unit, and prompts the steering information to a driver through the voice broadcasting unit; and judging whether the rear motor vehicle receives the first frequency to obtain the safe distance of the rear vehicle so as to prompt the driver of the angle of the rotating direction. The alarm device further comprises a timing module and a distance measuring module, the timing module is connected with the processing module and used for controlling the time of the first RFID tag and the second RFID tag for sending corresponding frequencies, and the distance measuring module is used for calculating the distance between vehicles or generating the safe vehicle distance for the vehicles to run according to the identified frequencies.
In addition, the system also comprises a collecting device which is used for counting the driving states of the vehicles which overtake or change lanes for a plurality of times within the preset time, and when the unsafe driving records in the driving states exceed the preset threshold value, the alarm module sends out a safety warning which reminds the drivers of overtaking or changing lanes frequently.
The collecting device comprises a plurality of RFID identification modules which are arranged below an automobile steering wheel in an encircling mode, the steering RFID identification modules are provided with 120 RFID identifications, the RFID identifications are arranged below the automobile steering wheel in an annular mode to form a complete circle, each RFID identification represents steering 3 degrees, the identification sequence is clockwise numbered from the position right above the automobile steering wheel, when the automobile performs steering action, the steering RFID identification modules rotate along with the steering wheel, the steering RFID identification modules identify the steering RFID identification modules in the rotating process, identification information with the RFID identification serial numbers is transmitted to the processing module, the left-turning degree or the right-turning degree of the automobile is judged, and finally, an instruction is sent to the alarm indicating module;
the RFID identification module is provided with a camera module, the shooting range of the camera module is the same as the reading range of the RFID identification module, and the camera module is used for shooting the position of the RFID identification module. After the camera module takes a picture, the picture is sent to the processing module for judgment processing;
identifying and calculating two RFID (radio frequency identification) identifiers R in photonAnd Rn+1Size of area MnAnd Mn+1Here, the area of a complete RFID tag is M, the recognition range of the RFID tag recognition module and the shooting range of the camera module are also M, where n represents a tag number. The steering angle of the steering wheel at this time is:
if M isnIf the steering wheel is equal to M, the steering angle of the steering wheel is determined;
Z＝(3*n-1.5)+360*x；
in the formula, x is the steering wheel turning number;
if M isn+1If the steering wheel is equal to M, the steering angle of the steering wheel is determined;
Z＝(3*(n+1)-1.5)*x；
in the formula, x is the steering wheel turning number;
if M isnNot equal to M and Mn+1Not equal to M, thenSteering angle to the steering wheel;
in the formula, x is the steering wheel turning number;
the judgment rule of the number of turns is as follows: in a steering action of the steering wheel in the same direction, the steering RFID identification module identifies the RFID identification RnTwice is a circle, the steering RFID identification module identifies the RFID identification RnAnd the third time is two circles.
It should be noted that after the first RFID tag is identified by the first identification module, the first identification module 5 sends a signal "deviate left" to the alarm module, the alarm module sends the signal to the processing module, the processing module controls to start the light-emitting unit to turn on the left turn light as alarm information, and the processing module controls to start the voice broadcasting module to broadcast voice as voice alarm information; after the second RFID tag is identified by the first identification module, a signal of 'deviation to the right' is sent to the processing module, the processing module controls and starts the light emitting unit to start the right turn light as alarm information, and the central processing unit 107 controls and starts the voice broadcasting unit to broadcast voice as voice alarm information; the second identification module is used for identifying a second RFID label of a rear vehicle, the second frequency of the second RFID label is larger than the first frequency stored in the first RFID label, namely the first frequency corresponds to a near field, the second frequency corresponds to a far field, when the front vehicle performs steering or braking operation, the safety distance between the current vehicle and the rear vehicle can be obtained from the alarm device in advance, and other accidents caused by rear-end collision or vehicle faults are avoided.
After the RFID identification module on the acquisition device is identified by the RFID identification module, the RFID identification module sends a signal to the processing module to turn left, the processing module controls and starts the light-emitting unit to turn on the left turn light as alarm information, and the processing module controls and starts the voice broadcasting unit to broadcast voice as voice alarm information.
In addition, the second RFID label is located the front truck afterbody, and first identification module is located the back car head, and after the RFID label that is located the front truck afterbody was discerned by the identification module who is located the back car head, alarm device sent signal "the car is close to asking to brake" and is sent to processing module, and processing module control starts the luminescence unit and opens the brake light as alarm information, and processing module control starts the voice broadcast unit sends voice broadcast as alarm information.
It should be understood that the user can select whether to turn on the warning system according to different terrains (such as tunnels, narrow bridges, steep slopes), different road conditions (such as districts and schools), different climates (such as rainy and snowy days and foggy days) and driving fatigue conditions of the user, after the user judges that the terrain is a dangerous road surface or the road condition is complex or the road has low visibility in rainy, snowy and foggy days or the driving condition of the user is fatigued, after the alarm system is started, the user can turn the steering wheel and the acquisition device of the extension area of the rotating shaft of the steering wheel, further transmits the signal to a second RFID label at the rear, after the first identification module receives the signal, the signal is sent to a processing module to judge whether the signal is a left deviation signal according to the received signal, if the received signal is judged to be a left deviation signal, the light-emitting unit turns on a left turn light, and the voice broadcasting unit broadcasts the left deviation voice; if the received signal is judged not to be the 'left deviation' signal, judging whether the received signal is the 'right deviation' signal or not according to the received signal; if the received signal is judged to be a 'deviation right' signal, the right steering lamp is turned on by the light emitting unit, and the voice broadcasting unit carries out 'deviation right' voice broadcasting.
When the motor vehicle passes through a bumpy road section at night, a driver starts an alarm system corresponding to a first RFID tag, when a steering wheel of the motor vehicle is influenced by the bumpy road section and swings left and right, an RFID identification module arranged on the steering wheel is identified by an RFID identification module arranged right below the steering wheel, left and right steering lamps are automatically started, indoor voice broadcast and outdoor voice broadcast are sent out, wherein the indoor voice broadcast and the outdoor voice broadcast are deviated leftwards, rightwards, leftwards and rightwards, turns leftwards and turns rightwards, and the driver and vehicles on two sides are reminded of paying attention to the steering of the motor vehicle or are forced to change lanes due to the bumping of the road section; the driver can also start an alarm system corresponding to the second RFID tag according to the situation, the street lamp lighting condition is poor at night, the vehicle in the front stops suddenly, the driver does not respond timely, and rear-end accidents can be caused; the driver also can open the alarm system that the second RFID label corresponds, and the motor vehicle is bad because street lamp lighting conditions night, and the driver can not see the road sign clearly, probably causes and fails to go at a high speed according to the road sign speed limit, perhaps selects the condition such as wrong car, and alarm system starts the back, and the RFID label on the identification module accessible discernment road sign on the automobile body carries out indoor voice broadcast to traffic accident's emergence has been avoided.
In one embodiment, as shown in fig. 2, a method for warning a motor vehicle steering brake based on RFID further includes a vehicle steering warning indication process:
s1: the vehicle is in a running state.
S2: the steering RFID identification module is started when the automobile is started, and continuously captures RFID identification information. If the RFID identification information is captured, the automobile is in a steering state, and the step S3 is entered; if the RFID identification information is not captured, the automobile is not in a steering state and does not respond.
S3: and sending the read RFID information to a central processing unit, and judging and calculating the steering direction and the steering angle of the steering wheel by the central processing unit according to the judgment rule.
S4: and the alarm indication module carries out alarm reminding on the steering direction and the steering angle of the steering wheel after receiving the instruction of the central processing unit.
S5: the steering of the driver is finished;
s6: the alarm indicates an end.
In one embodiment, as shown in fig. 3, an RFID-based motor vehicle steering brake warning indication apparatus further includes a vehicle brake warning indication process:
s1: the vehicle is in a running state and no braking operation is performed.
S2: the brake RFID identification module is started when the automobile is started, and continuously captures RFID identification information. If the RFID identification information is captured, the automobile is in a braking state, and the step S3 is entered; if the RFID identification information is not captured, the automobile is not in a braking state and does not respond.
S3: and sending the read RFID information to a central processing unit, and judging by the central processing unit according to the judgment rule.
S4: and the alarm indication module carries out alarm reminding on the braking behavior of the driver after receiving the instruction of the central processing unit.
S5: the steering of the driver is finished;
s6: the alarm indicates an end.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (5)
1. An RFID-based motor vehicle steering brake warning system, comprising:
the triggering device comprises a first RFID label and a second RFID label which are arranged at the tail of the motor vehicle, a first identification module arranged at the head of the motor vehicle, and a switching module connected to the first identification module, the first RFID label and the second RFID label;
the alarm device comprises a second identification module arranged at the tail of the motor vehicle, a processing module connected with the second identification module and an alarm module connected with the processing module, and the switching module is connected with the processing module;
when a processing module of a current motor vehicle receives steering information of a steering wheel of the current motor vehicle, the switching module is controlled to be connected with the first RFID tag and send out first frequency, a first identification module of the motor vehicle behind the current motor vehicle receives the first frequency, and the processing module controls the alarm module to send first alarm information corresponding to the steering information according to the first frequency;
when a processing module of a rear motor vehicle receives brake information of a current motor vehicle, the switching module is controlled to be connected with the second RFID tag and send out second frequency, a second identification module of the motor vehicle behind the current motor vehicle receives the second frequency, the processing module controls the alarm module to send second alarm information corresponding to the brake information according to the second frequency, and the second frequency is greater than the first frequency;
the system comprises a collecting device, an alarming module and a driving state judging module, wherein the collecting device is used for counting the driving states of multiple times of overtaking or lane changing of a vehicle in a preset time, and when unsafe driving records in the driving states exceed a preset threshold value, the alarming module sends out a safety warning for reminding a driver of overtaking or lane changing frequently; the collecting device comprises a plurality of steering RFID identification modules which are arranged below an automobile steering wheel in an encircling mode, the steering RFID identification modules are provided with 120 RFID identifications, the RFID identifications are arranged below the automobile steering wheel in an encircling mode and form a complete circle, each RFID identification represents steering 3 degrees, the label sequence is clockwise numbered from the position right above the automobile steering wheel, when the automobile performs steering action, the steering RFID identification modules rotate along with the steering wheel, the steering RFID identification modules identify the steering RFID identification modules in the rotating process, identification information with the RFID identification serial numbers is transmitted to the processing module, the left-turning degree or the right-turning degree of the automobile is judged, and finally, an instruction is sent to the alarm indicating module;
the steering RFID identification module is provided with a camera module, the shooting range of the camera module is the same as the reading range of the steering RFID identification module, and the camera module is used for shooting the position of the RFID identification in the steering RFID identification module;
after the camera module takes a picture, the picture is sent to the processing module for judgment processing;
identifying two RFID tags in a computed photograph
And
size of (2)
And
here, one complete RFID tag has an area of
The identification range of the RFID identification module and the shooting range of the camera module are
Wherein n represents an identification number;
the steering angle of the steering wheel at this time is:
if it is
Then the steering wheel steering angle;
in the formula, x is the steering wheel turning number;
if it is
Then the steering wheel steering angle;
in the formula, x is the steering wheel turning number;
if it is
Then the steering wheel steering angle;
in the formula, x is the steering wheel turning number;
the judgment rule of the number of turns is as follows: the steering RFID identification module identifies the RFID identification in the steering wheel steering action in the same direction
Twice is a circle, the steering RFID identification module identifies the RFID identification
And the third time is two circles.
2. The RFID-based motor vehicle steering brake warning system according to claim 1, wherein the warning module comprises a light emitting unit and a voice broadcasting unit;
when the steering wheel of the motor vehicle steers, the processor converts the steering information into an electric signal, prompts the rotation direction through the light-emitting unit, and prompts the steering information to a driver through the voice broadcasting unit;
and judging whether the rear motor vehicle receives the first frequency to obtain the safe distance of the rear vehicle so as to prompt the driver of the angle of the rotating direction.
3. The RFID-based motor vehicle steering and braking alarm system according to claim 1, wherein the alarm device further comprises a timing module and a distance measuring module, the timing module is connected with the processing module and used for controlling the time when the first RFID tag and the second RFID tag transmit corresponding frequencies, and the distance measuring module is used for calculating the distance between vehicles or generating a safe distance for the vehicles to run according to the identified frequencies.
4. An RFID-based motor vehicle steering brake warning method of the RFID-based motor vehicle steering brake warning system according to any one of claims 1 to 3, comprising the steps of:
s1: the vehicle is in a straight-line driving state;
s2: judging whether the vehicle is in a steering state, if not, not making any response; if yes, the flow proceeds to step S3:
s3: determining a direction in which the steering wheel is turned;
s4: calculating the steering angle of a steering wheel;
s5: the alarm device carries out steering alarm indication;
s6: ending the steering;
s7: the alarm indicates an end.
5. The motor vehicle steering brake warning method of claim 4, further comprising:
s11: the vehicle is in a normal running state and is not subjected to brake operation;
s22: judging whether the vehicle is in a braking state or not;
if yes, go to step S3; if not, no response is made;
s33: the indication reporting module carries out brake alarm indication;
s44: ending the braking action;
s55: the alarm indicates an end.
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| US7239953B2 (en) * | 2004-10-05 | 2007-07-03 | Vision Works, Llc | Absolute acceleration sensor for use within moving vehicles |
| CN103832336A (en) * | 2014-02-19 | 2014-06-04 | 苏州市职业大学 | System for giving alarm when vehicle collides with another vehicle in front |
| CN107016878A (en) * | 2017-03-28 | 2017-08-04 | 中国人民解放军装甲兵工程学院 | A kind of car networking system |
| CN107985297A (en) * | 2017-12-14 | 2018-05-04 | 东北林业大学 | The method that early warning of knocking into the back is braked based on CAN bus vehicle |
| CN112440865A (en) * | 2020-12-15 | 2021-03-05 | 常州工业职业技术学院 | Intelligent vehicle lane changing auxiliary system and control method thereof |
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