CN212667259U - Traffic accident front line warning system - Google Patents
Traffic accident front line warning system Download PDFInfo
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- CN212667259U CN212667259U CN202021505407.7U CN202021505407U CN212667259U CN 212667259 U CN212667259 U CN 212667259U CN 202021505407 U CN202021505407 U CN 202021505407U CN 212667259 U CN212667259 U CN 212667259U
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Abstract
The utility model relates to a traffic accident front line warning system, mobile terminal and intelligent vehicle including communication connection, intelligent vehicle includes the dolly body and sets up singlechip, triangle warning sign, communication module, motor drive chip, driving motor, warning light and bee calling organ on the dolly body, communication module, motor drive chip, warning light and bee calling organ are connected respectively to the singlechip, the warning light is installed on triangle warning sign, motor drive chip is connected with driving motor, realizes intelligent vehicle's motion and stops. Compared with the prior art, the utility model discloses can effectively reduce the incidence of secondary traffic accident, protect the security of the lives and property.
Description
Technical Field
The utility model belongs to the technical field of the road traffic safety technique and specifically relates to a traffic accident front line warning system is related to.
Background
In various traffic accidents, part of the accidents are secondary accidents caused by improper operation after the traffic accidents of drivers, so that the occurrence probability of the existing traffic accidents is greatly increased.
In order to reduce the secondary accident, most of the traditional triangular warning boards in the market are passive reflectors made of plastic reflective materials, for example, the patent application CN109318798A discloses an expressway anti-collision triangular warning board connected with a vehicle network, and the triangular warning board is provided with the plastic reflective materials. However, in practical application, the traditional triangular warning board has certain defects, which are mainly shown as follows: the light can be emitted only when the light is irradiated, and the warning effect is poor when the visual field is poor under the condition of no light. The requirement on the use angle is high, the warning range is small, the warning effect on vehicles running from the front is good, and the warning effect on vehicles changing lanes on the side is poor.
In addition, the process of traditionally placing the triangular warning board is as follows: and (3) turning on a danger alarm lamp of the accident vehicle, carefully observing the coming vehicle at the rear, holding the triangular warning board in front of the chest, moving the triangular warning board to the rear of the accident lane to a specified distance, placing the triangular warning board, and finally evacuating the personnel. Because need personnel to hold the triangle warning sign, walk backward along the accident lane, if meet the rear that does not pay attention to the speed reduction and come the car, personnel hide and dodge untimely, cause secondary traffic accident easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a traffic accident front line warning system which effectively improves the road safety in order to overcome the defects existing in the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a traffic accident front line warning system, includes communication connection's mobile terminal and intelligent vehicle, intelligent vehicle includes the dolly body and sets up singlechip, triangle warning sign, communication module, motor drive chip, driving motor, warning light and bee calling organ on the dolly body, communication module, motor drive chip, warning light and bee calling organ are connected respectively to the singlechip, the warning light is installed on triangle warning sign, motor drive chip is connected with driving motor.
Furthermore, the mobile terminal is provided with a human-computer interaction interface, and the human-computer interaction interface comprises an environment parameter input unit, a communication connection state display unit, a remote control unit and a placement distance display unit.
Furthermore, the singlechip is also connected with an ultrasonic ranging module.
Further, the ultrasonic ranging module comprises an ultrasonic transmitter and an ultrasonic receiver.
Further, the communication module is an HC-05 Bluetooth chip.
Further, the singlechip is connected with a mobile charging power supply.
Further, the singlechip is Arduino Uno singlechip.
Further, the single chip microcomputer is connected with a key switch.
Further, the single chip microcomputer is connected with a GPS module.
Furthermore, the warning light comprises an outer ring light and an inner ring light, wherein the outer ring light is an LED light bar and is arranged on three edges of the triangular warning board.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses intelligent vehicle and mobile terminal communication connection can control the placing of triangle warning sign in order to realize the standard distance through the remote control mode, need not personnel and walk about on the lane, can reach the purpose that the very first time personnel withdraw the accident lane, have avoided the emergence of secondary accident, have further improved the security.
2. The utility model discloses can show the guide based on accident scene environmental parameter through handheld mobile terminal, make the triangle warning sign place the distance that accords with the standard, improve road traffic safety nature.
3. The utility model discloses triangle warning sign internally mounted warning light and bee calling organ can improve warning effect, can self-luminous and send out the alarm sound at night, not only improve warning effect from the vision, still increased sense of hearing warning effect, improved the security.
4. The utility model discloses be provided with ultrasonic ranging module, can be used to detect the barrier distance, can change the warning mode according to the barrier distance that detects, improved the initiative security of system.
5. The utility model discloses can reduce the incidence of secondary traffic accident, protect the security of the lives and property.
Drawings
FIG. 1 is a schematic view of the structure principle of the present invention;
FIG. 2 is a schematic structural view of the intelligent trolley of the present invention;
FIG. 3 is a front view of the intelligent trolley of the utility model;
FIG. 4 is a top view of the intelligent trolley of the present invention;
fig. 5 is a bottom view of the intelligent trolley of the utility model;
FIG. 6 is a schematic diagram of the operation of the system of the present invention;
FIG. 7 is a schematic diagram of a man-machine interface of the mobile terminal;
in the figure, 1, a mobile terminal, 2, an intelligent trolley, 201, a single chip microcomputer, 202, an ultrasonic transmitter, 203, an ultrasonic receiver, 204, a key switch, 205, a motor driving chip, 206, a driving motor, 207, an alarm lamp, 208, a buzzer, 209, a triangular warning board, 210, a communication module, 211, a rubber wheel, 212, a universal wheel, 2071, an outer ring lamp, 2072, an inner ring lamp, 213 and a GPS module.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
As shown in fig. 1, the embodiment provides a traffic accident front line warning system, which includes a mobile terminal 1 and an intelligent car that are in communication connection. In the embodiment, the mobile terminal 1 is a smart phone loaded with an application program APP, and can display the placement distance of the triangular warning board; the intelligent vehicle reaches the designated position under the remote control of the mobile terminal based on the triangular warning board placement distance, and plays a role in warning motor vehicles, non-motor vehicle drivers or pedestrians.
After the accident happens, the driver turns on the danger alarm lamp of the accident vehicle, and all personnel on the vehicle can withdraw from the accident lane at the first time. The driver can remotely control the triangular warning board on the intelligent vehicle to the specified placement distance outside the street edge or lane, so that the occurrence of secondary accidents is avoided.
The mobile terminal 1 has a human-computer interaction interface, as shown in fig. 7, which includes an environment parameter input unit, a communication connection state display unit, a remote control unit, and a placement distance display unit, wherein the environment parameter input unit adopts a selection mode. In this embodiment, the environment parameters include a road type, an actual time, and a weather view, and specific options are shown in table 1.
Table 1 environmental parameter variables and options
And the mobile terminal calculates the standard placement distance of the triangular warning board according to the received options of different environment parameters. In this embodiment, only when all the 3 environmental parameters selected by the user are option 1, the triangular warning board displayed on the APP interface is placed at a distance "greater than 50 meters", and in all other cases, "greater than 150 meters" is displayed.
As shown in fig. 1-5, the intelligent car includes a car body, and a single chip 201, a triangular warning board 209, a communication module 210, a motor driving chip 205, a driving motor 206, a warning lamp 207 and a buzzer 208 which are arranged on the car body, wherein the single chip 201 is respectively connected with the communication module, the motor driving chip 205, the warning lamp 207 and the buzzer 208, the warning lamp 207 is installed on the triangular warning board, and the motor driving chip 205 is connected with the driving motor 206, so as to realize the movement and stop of the intelligent car. The single chip microcomputer is also connected with a key switch 204 for starting. The single chip 201, the motor driving chip 205, the communication module 210, the buzzer 208 and the like are integrated on a PCB expansion board.
In this embodiment, the automobile body of dolly body adopts the 3D printing mode to obtain.
In another embodiment, the single chip microcomputer is further connected with an ultrasonic ranging module, and when the ultrasonic ranging module detects that the distance between the front obstacles is smaller than a set threshold value, the warning modes of the alarm lamp and the buzzer are switched. The warning mode comprises a conventional warning mode and a strengthened warning mode, and when the distance between the detected front obstacles is smaller than a set threshold value, the warning mode is switched from the conventional warning mode to the strengthened warning mode. Further, under the enhancement warning mode, the intelligent vehicle automatically retreats. Wherein, the normal warning mode is that the alarm lamp is always on, and the buzzer takes time t1Interval chirping; the enhanced alert mode is defined by the time t2Flashing alarm lights at intervals and sounding a buzzer, t2<t1。
(1) Communication module
In this embodiment, the communication module uses an HC-05 bluetooth chip, and the bluetooth chip enables the single chip microcomputer to be used as a slave node to perform bluetooth communication with the mobile terminal host node. The important parameters of the HC-05 Bluetooth chip are as follows:
the effective communication distance of the open field is 10 meters;
secondly, the paired serial ports can be used as full-duplex serial ports;
thirdly, supporting standard baud rate between 4800bps and 1382400 bps;
the pins comprise VCC, GND, TXD, RXD, KEY and STATE, when the device is used, the VCC is connected with 5V, the GND is grounded, and the TXD and the RXD are respectively connected with the serial ports RXD and TXD of the single chip microcomputer.
(2) Ultrasonic ranging module
The ultrasonic ranging module of the embodiment adopts an HC-SR04 ultrasonic ranging module, which includes an ultrasonic transmitter 202 and an ultrasonic receiver 203, and is further connected with a control circuit. The module will automatically send 8 square waves of 40kHz and automatically detect if a signal is returned. If a signal returns, a high level is output through IO ECHO, the duration time of the high level is the time from the emission to the return of the ultrasonic wave, and the distance measurement calculation formula is as follows:
distance (high level time × sound velocity)/2
In the formula, the sound velocity is 340 m/s.
Load on triangle warning sign intelligent vehicle, connect the singlechip, detect non-motor vehicle or pedestrian's distance, important parameter is as follows:
firstly, ranging range: 2 cm-4 m;
measuring precision: 2 mm;
the distance measurement period is more than 60 milliseconds, so that the influence of the transmitted signal on the echo signal is prevented;
pins comprise VCC, TRIG, ECHO and GND, when the single-chip microcomputer is used, the VCC is connected with 5V, the GND is grounded, and the TRIG and the ECHO are respectively connected with a digital output pin and a digital input pin of the single-chip microcomputer.
(3) Motor driving chip
The motor driving chip of the embodiment adopts TB6612FNG, outputs and drives the left and right wheel motors, and has the following important parameters:
firstly, the logic power supply VCC range is 2.7V-5.5V of direct current;
the maximum value of the power supply VM of the motor is direct current 15V;
thirdly, the rated current is 1.2A, the peak current is 3.2A, and the heating is not easy to occur in the rated range;
and fourthly, double driving is realized, two motors can be driven respectively, and a driving truth table is shown in a table 2.
TABLE 2 TB6612FNG Motor drive chip logic truth table
The chip has 16 pins, when in use, VM and VCC are connected with 5V, GND is grounded, A1 and A2 are connected with one path of direct current motor, B1 and B2 are connected with the other path of direct current motor, PWMA and PWMB are connected with a singlechip PWM output pin, STBY, AIN1, AIN2, BIN1 and BIN2 are connected with a singlechip digital output pin.
(4) Driving motor
The left and right wheels of the trolley body are driven by a left and right driving motor. The driving motor of this embodiment adopts TT direct current gear motor, receives the signal from the motor drive chip, and the output drives left and right wheels.
(5) Other modules
The cart body includes rubber wheels 211 and universal wheels 212 for driving and steering.
The intelligent trolley is provided with a connecting wire and a connector, and the interval of XH2.54-2P 2.54mm is effective in preventing reverse connection.
In this embodiment, the warning light includes outer lane lamp 2071 and inner circle lamp 2072, and the outer lane lamp is LED lamp strip, installs on three limits of triangle warning sign.
The singlechip is connected with a mobile charging power supply and supplies power to the whole system. In this embodiment, mobile charging source adopts the treasured that charges, and specific parameter is: lithium battery, 5000mAh, 5V direct current output and 109.5 g. Remove the support frame dolly automobile body that charging source accessible 3D printed.
(6) Single chip microcomputer
Considering performance, cost and development mode comprehensively, the single chip microcomputer of the embodiment is an Arduino Uno single chip microcomputer, the processor core of the single chip microcomputer is Atmel Atmega328p, and the single chip microcomputer has 14 paths of digital input/output, wherein 6 paths of digital input/output can be used as PWM output, 6 paths of analog input, 2 paths of UART interfaces, a 16MHz crystal oscillator, a USB interface (which is convenient for on-line program debugging and power supply), a power jack, an ICSP header and a reset button.
The resource allocation interfaces of each interface of the singlechip and other hardware are shown in table 3.
TABLE 3 resource allocation interface definition table for all hardware model selection modules
As shown in fig. 6, the operation process of the traffic accident front line warning system is described as follows:
the working process of the mobile terminal (mobile phone APP terminal) comprises the following steps:
calculating the standard placement distance of the triangular warning board according to the environmental parameters of the accident scene set by the user;
then, Bluetooth pairing is carried out on the mobile phone APP and the intelligent car with the triangular warning board, and the pairing is tried again when the pairing fails until the pairing is successful; after the pairing is successful, the user can remotely control the intelligent car to move forwards, backwards, turn left, turn right and stop by using the mobile phone APP, as shown in fig. 7;
and when the intelligent car end carrying the triangular warning board runs to the standard distance, stopping the whole process.
The working process of the intelligent trolley comprises the following steps:
firstly, a key starts the intelligent trolley, an IO port is initialized, and input and output are set;
because the direct current motors always have small difference in the processing and manufacturing processes, compensation correction is carried out on the left motor and the right motor, and the compensation value is determined through debugging, so that the trolley can move along a straight line when the left wheel and the right wheel input the same PWM;
then, as a Bluetooth slave node, when the mobile phone APP terminal initiates a pairing request, the intelligent vehicle terminal attempts pairing, and if the pairing fails, the pairing needs to be initiated again until the pairing is successful;
the conventional warning mode is turned on, and in this embodiment, the conventional warning effect is: the alarm lamp is normally on, and the buzzer buzzes at intervals of 1 second;
after the pairing is successful, if the intelligent trolley receives a remote control command of the mobile phone APP, the left and right wheel motors are controlled to act according to the table 4, and the remote control command is completed; and if the intelligent trolley does not receive the remote control command of the mobile phone APP, controlling the intelligent trolley to stop in situ to wait for receiving the remote control command. The logic truth table of the motor driving chip in the table 2 and the interface definition table in the table 3 are combined, so that the remote control command can be converted into the output of Arduino;
TABLE 4 remote control Cart Command resolution
In the process of controlling the intelligent trolley to move, if the distance between the ultrasonic sensor and the front obstacle (generally, a non-motor vehicle or a pedestrian) is too short and is smaller than a set threshold value, an automatic driving takeover procedure is executed, the trolley retreats, and the warning effect is enhanced in the embodiment: the alarm lamp is changed from normal lighting to 500-second interval flashing, the buzzer is changed from 1-second interval sounding to 500-second interval sounding, and the conventional warning effect and the remote control operation are recovered until the ultrasonic sensor detects that the distance between the obstacles is larger than the threshold value;
and when the intelligent car end carrying the triangular warning board runs to the standard distance, stopping the whole process.
Example 2
The embodiment provides a traffic accident front line warning system.A manual input mode is adopted by an environment parameter input unit in a human-computer interaction interface of a mobile terminal. The rest is the same as example 1.
Example 3
In the human-computer interaction interface of the mobile terminal, the environmental parameter input unit adopts a real-time acquisition mode, that is, the mobile terminal directly acquires information such as current weather, time, road type and the like based on the position of the mobile terminal, and calculates to obtain the standard placement distance of the triangular warning board. The rest is the same as example 1.
Example 4
The embodiment provides a traffic accident front line warning system, and in mobile terminal's human-computer interaction interface, the remote control unit still included a key control unit, is provided with the GPS module on the intelligent vehicle, and mobile terminal steerable intelligent vehicle key autopilot is to the target distance to key when retrieving and retrieve. The rest is the same as example 1.
Example 5
The embodiment provides a traffic accident front line warning system, is provided with the GPS module on the intelligent vehicle, and the steerable intelligent vehicle of mobile terminal is retrieved a key. The rest is the same as example 1.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a traffic accident front line warning system, its characterized in that, including communication connection's mobile terminal and intelligent vehicle, intelligent vehicle includes the dolly body and sets up singlechip, triangle warning sign, communication module, motor drive chip, driving motor, warning light and bee calling organ on the dolly body, communication module, motor drive chip, warning light and bee calling organ are connected respectively to the singlechip, the warning light is installed on triangle warning sign, motor drive chip is connected with driving motor.
2. The warning system of the traffic accident front line according to claim 1, wherein the mobile terminal has a human-machine interaction interface including an environmental parameter input unit, a communication connection state display unit, a remote control unit, and a placement distance display unit.
3. The warning system of the front line of traffic accident according to claim 1, wherein the single chip microcomputer is further connected with an ultrasonic ranging module.
4. The pre-accident line warning system of claim 3, wherein the ultrasonic ranging module comprises an ultrasonic transmitter and an ultrasonic receiver.
5. The warning system of the preceding line of traffic accident according to claim 1, wherein the communication module is a HC-05 bluetooth chip.
6. The warning system of the preceding line of traffic accident according to claim 1, wherein the single chip microcomputer is connected with a mobile charging power supply.
7. The warning system of a preceding line of a traffic accident of claim 1, wherein the single chip microcomputer is an Arduino Uno single chip microcomputer.
8. The warning system of the preceding line of traffic accident according to claim 1, wherein the single chip microcomputer is connected with a key switch.
9. The warning system of the preceding line of traffic accident according to claim 1, wherein the single chip microcomputer is connected with a GPS module.
10. The warning system of claim 1, wherein the warning light comprises an outer ring light and an inner ring light, and the outer ring light is an LED light bar and is mounted on three sides of the triangular warning board.
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| CN202021505407.7U CN212667259U (en) | 2020-07-27 | 2020-07-27 | Traffic accident front line warning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111873901A (en) * | 2020-07-27 | 2020-11-03 | 陈彬豪 | Traffic accident front line warning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873901A (en) * | 2020-07-27 | 2020-11-03 | 陈彬豪 | Traffic accident front line warning system |
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