CN109949612B - Ghost probe accident early warning system based on information interaction - Google Patents
Ghost probe accident early warning system based on information interaction Download PDFInfo
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Abstract
The invention discloses a ghost probe accident early warning system based on information interaction, which consists of a vehicle front detection module, an arduino development board, a position positioning module, a communication module, an in-vehicle voice alarm module, an out-vehicle voice alarm module and an in-vehicle display, wherein the vehicle front detection module consists of two ultrasonic radars which are respectively installed in the left side and the right side of a vehicle head, the output ends of the two ultrasonic radars and the output end of the position positioning module are electrically connected with the signal input end of the arduino development board, the control end of the arduino development board is respectively in control connection with the input end of the in-vehicle voice alarm module, the input end of the out-vehicle voice alarm module and the input end of the in-vehicle display, and the communication module is in bidirectional connection with the arduino development board. Compared with the prior art, the system can realize the bidirectional early warning of pedestrians and vehicles, eliminate the potential safety hazard of blind areas of pedestrians, effectively avoid ghost probe accidents, has high safety system, and expands the perception range of vehicles.
Description
Technical Field
The invention relates to the technical field of traffic safety, in particular to a ghost probe accident early warning system based on information interaction.
Background
The data of the national statistical bureau show that with the development of the transportation industry and the improvement of the national economic level, the number of motor vehicles kept in the whole country in 2018 reaches 3.2 hundred million, and the number is continuously increased. The traffic accidents are greatly increased due to the large increase of the quantity of the motor vehicles, only in 2018, the number of people died due to the traffic accidents in the world is as high as 135 thousands, the number of injured people is more than five thousands, and direct economic loss of billions of dollars is caused, pedestrians are often in a weak position in the pedestrian and passenger accidents, and the data of the national statistical bureau shows that the fatality rate of the pedestrian and passenger traffic accidents is as high as 53.5%, which is 1.7 times of the total fatality rate of the traffic accidents all the year round. The ghost probe accidents are frequent cases of the traffic accidents, when a vehicle runs normally, the vehicle on one side is in a static or low-speed state, a driver is blocked by the sight line of the vehicle, cannot timely find pedestrians and small motor vehicles passing in front of the vehicle, and cannot effectively avoid the pedestrians and the small motor vehicles, so that the traffic accidents are caused. Due to the abruptness of such accidents and the vulnerability of pedestrians, once such accidents occur, pedestrians are often injured seriously, if not dead. Large vehicles such as buses and trucks can cause larger visual field blind areas, so that ghost probe traffic accidents are easy to happen, and huge losses are caused to life and property safety.
At present, no relevant products for solving ghost probe accidents exist at home and abroad, the existing scheme is mainly two, the ghost probe traffic accident early warning system and the ghost probe traffic accident early warning method are provided by the combined fertilizer industry university which is published by the national intellectual property administration in 2018, 12, month and 11, the scheme adopts a camera and ultrasonic waves which are arranged on a vehicle to detect, and adopts a recording broadcast and text display method to early warn and remind other vehicle drivers and pedestrians; the scheme is characterized in that the vehicle is modified, the monitoring, analysis and early warning of the vehicle are completed by devices on the same vehicle, the information cannot be effectively transmitted, and the directional early warning is difficult to perform; correspondingly, the national intellectual property office provides a zebra crossing ghost probe mutual identification and early warning method for vehicles and pedestrians by the university of the Chinese mining industry, which is published in 2018, 10, 12, and the scheme aims to solve the ghost probe accident at the intersection, adopts a method for detecting pedestrians by adopting a monitoring camera, and sends early warning information to multimedia terminals of pedestrians and drivers to avoid the accident. But because the device is limited to intersections, its operating range is greatly limited.
Aiming at the existing automatic driving vehicle, the vehicle is taken as an independent individual to finish information collection and analysis in the driving process independently, and the sensor data of the vehicle is taken as the basis of automatic driving; during the driving process, the vehicle can obtain information, and the limitation is exposed: when a pedestrian passes through the front of the front vehicle, the rear vehicle cannot know the information due to the existence of the blind area, so that dangerous information is difficult to acquire in time to take measures, and traffic accidents are very easy to happen.
Accordingly, the present inventors have made extensive studies on the above problems, and as a result, the present invention has been made.
Disclosure of Invention
The invention aims to provide an information interaction-based ghost probe accident early warning system, which can extend the intelligent sensor range of a vehicle by sharing the sensor data of the vehicle on the premise of effectively detecting danger, so that surrounding vehicles can acquire accurate and effective early warning information, dangerous accidents are avoided, and the safety system is high.
In order to achieve the above purpose, the solution of the invention is:
a ghost probe accident early warning system based on information interaction comprises a front detection module, an arduino development board, a position positioning module, a communication module, a voice alarm module and an on-board display, wherein the front detection module consists of two ultrasonic radars which are respectively arranged in the left side and the right side of the head of an automobile and used for detecting whether pedestrians or motor vehicles pass transversely in front of the automobile, the position positioning module, the arduino development board and the communication module are all arranged in the automobile, antennas of the position positioning module and the communication module are all connected with a shell of the automobile, the on-board display is arranged in the automobile and positioned on the right side of an instrument panel in the automobile, the voice alarm module is provided with an on-board voice alarm module and an off-board voice alarm module, the on-board voice alarm module is arranged in the automobile and positioned beside the on-board display, the off-board voice alarm module is arranged at the head of the automobile and embedded in the automobile, the output end of the ultrasonic radar and the output end of the position positioning module are electrically connected with the signal input end of the arduino development board, the control end of the arduino development board is respectively in control connection with the input end of the in-vehicle voice alarm module, the input end of the out-vehicle voice alarm module and the input end of the vehicle-mounted display, and the communication module is in bidirectional connection with the arduino development board;
the ghost probe accident early warning system based on information interaction is realized by adopting the following steps:
the method comprises the following steps that firstly, two ultrasonic radars are used for detecting whether a pedestrian or a small motor vehicle transversely passes through the front of a current vehicle within a preset distance range in real time, and data collected by the two ultrasonic radars are sent to an arduino development board in real time; meanwhile, the positioning data of the current vehicle is obtained in real time by utilizing the position positioning module and is analyzed, the vehicle running information of the position, the speed and the course of the current vehicle is obtained when the current vehicle runs, the vehicle running information is sent to the arduino development board in real time, and the arduino development board receives the vehicle running information and stores the current front and rear groups of vehicle running information data of the vehicle in real time;
step two, the arduino development board judges whether a pedestrian exists in front of the vehicle according to the received data sent by the ultrasonic radar, then the arduino development board is matched with the automobile running information of the position positioning module to judge whether the current vehicle causes danger to the pedestrian, and finally the arduino development board judges whether an early warning signal that the pedestrian exists in front of the vehicle and causes danger is generated; when judging, if the distance value of the ultrasonic radar received by the arduino development board twice before and after is changed by more than 15%, judging that a pedestrian or a small motor vehicle transversely passes through the front of the current vehicle, generating a corresponding character early warning signal to trigger a vehicle-mounted display of the current vehicle to work, and displaying character information that the pedestrian passes through the front vehicle; meanwhile, the arduino development board packs the early warning information of the current vehicle with pedestrian or small motor vehicle transverse crossing and danger caused by position information into an early warning information data packet;
thirdly, communication connection is achieved by using vehicles around the communication module, if the communication module of the vehicles around receives the early warning information data packet, the vehicle receiving the early warning information data packet is taken as a signal receiving vehicle, the vehicle transmitting the early warning information data packet is taken as a signal source vehicle, the signal receiving vehicle sends the early warning information data packet to an arduino development board of the vehicle, the arduino development board preprocesses the received information to obtain position information of the signal source vehicle, and then the position information is compared with position and direction information of the vehicle, which are cached in the arduino development board of the signal receiving vehicle in real time, so that the position relation between the vehicle and the signal source vehicle is judged; if the self vehicle and the signal source vehicle are judged to be in the same driving direction and located behind the signal source vehicle, a vehicle-mounted display screen of a trigger signal receiving vehicle displays ghost probe accident information, and when the vehicle speed of the signal receiving vehicle at the moment is higher than 25km/h, an in-vehicle voice alarm module of the trigger signal receiving vehicle starts to remind a driver of avoiding a pedestrian ahead, danger information of threat to the pedestrian caused by the fact that the vehicle speed of the signal receiving vehicle is too high and danger feedback information of position information of the signal source vehicle in an early warning data packet sent by the signal source vehicle are generated and packaged into a danger feedback information data packet, and the danger feedback information data packet is shared out through a communication module;
and step four, the signal source vehicle receives the danger feedback information data packet through the communication module, the arduino development board of the signal source vehicle analyzes the danger feedback information data packet, the position information of the analyzed early warning signal is compared with the position information of the early warning signal sent by the signal source vehicle, if the comparison result is the same position information, the voice alarm module outside the vehicle of the signal source vehicle is triggered to work, and the voice alarm module outside the vehicle sends out voice to remind pedestrians to avoid the rear vehicle.
The ultrasonic radar is arranged on the front side wall of the automobile head and is close to the position of 0.5m on the side surface of the automobile head.
The position positioning module is a Beidou/GPS dual-mode navigation positioning module, and the communication module is an HC-12 wireless serial port communication module.
After the structure is adopted, the ghost probe accident early warning system based on information interaction is applied, whether pedestrians or small-sized motor vehicles exist in front of a vehicle or not is measured through the ultrasonic radar on the vehicle, the current position information of the vehicle is collected by the position locating module in real time, if the pedestrians or the small-sized motor vehicles exist in front, the vehicle-mounted display works to remind a driver of the current vehicle of avoiding the pedestrians, meanwhile, data of the ultrasonic radar and the position information of the position locating module are packaged and sent to peripheral vehicles communicated with peripheral signals, the peripheral vehicles generate danger feedback information when the received information and the speed of the vehicle form danger according to analysis and processing of the received data, the vehicle-mounted display and the vehicle-mounted voice alarm module are triggered to work to remind the driver of avoiding the pedestrians and send the information back to the signal source vehicle through the communication module, and the signal source vehicle judges whether the signal source vehicle is matched with the early warning information, and if the received data is matched with the early warning information data sent by the vehicle, controlling the outside voice alarm module to work to remind pedestrians of avoiding the vehicle at the side of the signal source vehicle. Compared with the prior art, the whole system can realize the data transmission of peripheral vehicles, expand the perception range of vehicles, the whole system can remind the driver of the current detection vehicle that the front has the alarm information that pedestrians transversely pass, and can also send the early warning data of the current detection vehicle to other vehicles in the blind area of the detection vehicle, so that the drivers of other vehicles in the blind area can also know the danger signal reminding that pedestrians are about to walk and cause danger, meanwhile, the danger signal can be sent to the detection vehicle to remind the pedestrians in the front of the detection vehicle that the vehicles run in the vertical direction of the advancing direction, so that the pedestrians can stop steps in time, the human-vehicle bidirectional early warning is realized, the potential safety hazard of the blind area of the pedestrians is eliminated, the occurrence of ghost probe accidents is effectively avoided, and the safety system is high.
Drawings
FIG. 1 is a schematic block diagram of the circuit of the present invention;
FIG. 2 is a flow chart of the present invention.
Detailed Description
The following detailed description of the embodiments of the invention patent, but the invention patent can be embodied in many different forms as defined and covered by the claims.
As shown in figure 1, the ghost probe accident early warning system based on information interaction comprises a front detection module 1, an arduino development board 2, a position positioning module 3, a communication module 4, a voice alarm module 5 and a vehicle-mounted display 6, wherein the front detection module 1 comprises two ultrasonic radars which are respectively arranged in the left side and the right side of the head of a vehicle and used for detecting whether pedestrians or motor vehicles pass transversely in front of the vehicle, the ultrasonic radars are preferably arranged on the front side wall of the head of the vehicle and are close to the side surface of the head of the vehicle by 0.5m, namely the ultrasonic radar on the left side is arranged at the position of 0.5m close to the left outer side wall of the head of the vehicle on the left side of the front side wall of the head of the vehicle, the ultrasonic radar on the right side is arranged at the position of 0.5m close to the right outer side wall of the head of the front side wall of the vehicle on the right side of the, the ultrasonic radar is embedded and installed on the automobile head. The ultrasonic radar is a known product, and is also known to be installed in an automobile, and is the same as the existing reversing radar, and the description is not repeated here.
The position positioning module 3 is a big Dipper/GPS dual-mode navigation positioning module, the model of the big Dipper/GPS dual-mode navigation positioning module is UM220, the position positioning module can acquire the positioning data of the current vehicle in real time, analyzes the data and acquires the automobile running information of the position, the speed and the course of the current vehicle when the current vehicle runs, and the position positioning module 3 adopts the positioning module of the existing vehicle-mounted navigator, which is a known technology.
The communication module 4 is an HC-12 wireless serial communication module, the center frequency of the communication module is 433MHz, the communication module is provided with a serial communication interface with TTL level, the communication module supports multiple baud rates of 1200 and 115200, the effective identification distance is 600m, the communication module is low in power consumption and high in performance, the communication module 4 and the position positioning module 3 are both installed in an automobile, and an antenna of the communication module 4 and an antenna of the position positioning module 3 are both electrically connected with a shell of the automobile through wires.
The vehicle-mounted display 6 is arranged in the automobile and positioned on the right side of an instrument panel in the automobile, the vehicle-mounted display 6 can adopt the vehicle-mounted display of the existing automobile, the technology is known, and not described herein, the voice alarm module 5 is provided with an in-automobile voice alarm module 51 and an out-automobile voice alarm module 52, the in-automobile voice alarm module 51 is arranged in the automobile and positioned beside the vehicle-mounted display 6, the installation mode of the in-automobile voice alarm module 51 is the same as that of the existing automobile horn, a playing port is formed in the position of the automobile console, the in-automobile voice alarm module 51 and the out-automobile voice alarm module 52 are both known players, and the out-automobile voice alarm module 52 is arranged at the automobile head and positioned in the automobile shell.
The arduino development board 2 is provided with a data receiving and analyzing unit, a data judging unit, a signal analyzing unit and a data packing unit, the data receiving and analyzing unit can receive data sent by an ultrasonic radar, a position positioning module and a communication module and analyze the received data, the data judging unit receives the data analyzed by the data receiving and analyzing board unit and judges the data, the judging unit is provided with a pedestrian judging unit, a position judging unit and an information comparing unit, the calculation algorithm adopted by the pedestrian judging unit is different from the traditional pedestrian judging algorithm, the algorithm is determined by analyzing the change condition of the ultrasonic feedback distance value, when a pedestrian transversely passes through, the ultrasonic feedback distance value is subjected to two-time abrupt change, the distance value is firstly reduced and then increased, the characteristic is the characteristic when a moving object passes through, when a static obstacle exists at the front side, if the gradient is 15%, namely the change of the distance value detected by the currently received ultrasonic radar relative to the distance value detected by the previous group of ultrasonic radars is larger than 15%, judging that a pedestrian or a small motor vehicle transversely passes through the front of the vehicle, and triggering a vehicle-mounted display of the current vehicle after judgment to display the reminding information of 'the pedestrian passes through the front of the vehicle'; the algorithm of the pedestrian judgment unit breaks through the traditional calculation mode of setting a fixed threshold value, ascend variable value is adopted for judgment, and it is reasonable that ascend variable value is set to be 15%, under the complex road environment, common static obstacles in front of a vehicle can be eliminated, false alarm caused by too small distance between the obstacles and the vehicle can also be eliminated, and the accuracy of detecting pedestrians is greatly improved.
The position judging unit stores two groups of automobile driving information sent by the current vehicle position positioning module in real time, when the pedestrian judging unit judges that a pedestrian exists, the received automobile driving information and the position relation of the pedestrian judge whether a danger exists, and if the danger exists, the danger is formed; the signal analysis unit immediately generates early warning information with pedestrian information and current vehicle position information, the early warning information is packaged into an early warning information data packet through the data packaging unit, and the early warning information data packet is sent and shared through the communication module;
the position judging unit is also provided with a function of comparing the data of the self-vehicle position positioning module 3 with the position information of the early warning information received by the communication module to judge the position relationship between the detected object and the self-vehicle, and particularly, when the position judging unit receives the vehicle position coordinate of the early warning information, the position coordinate is combined with the position and direction information of the self-vehicle cached in real time to analyze, so as to judge the position relationship between the self-vehicle and the vehicle sending the early warning information, whether the pedestrian or the small motor vehicle in front of the early warning information vehicle forms a threat or not is obtained according to the position relationship, and if the threat forms, the vehicle-mounted display of the vehicle is triggered to send ghost probe accident information that the pedestrian wants to pass through in front to a driver; meanwhile, when the vehicle speed is higher than 25km/h in the received vehicle running information of the position positioning module 3, the in-vehicle voice alarm module 51 is triggered to send out voice to remind a driver of deceleration and avoidance; at the moment, the signal analysis unit immediately generates danger information which threatens pedestrians when the speed of a rear vehicle (namely a signal receiving vehicle) is too high and danger feedback information of the position information of the signal source vehicle in the received early warning data packet; the danger feedback information is packaged into danger feedback information through a data packaging unit and is sent and shared out through a communication module;
the information analysis unit receives the danger feedback information analyzed by the data receiving and analyzing unit in real time and stores the early warning information of the self vehicle, compares the position information of the early warning data packet in the danger feedback information with the position information of the stored early warning information of the self vehicle, determines whether the position information is the same position information, and triggers the outer voice alarm module 52 to send out voice to remind pedestrians to avoid the vehicle in the side direction in front of walking if the position information is the same position information.
Two ultrasonic radar's output and position orientation module 3's output all are connected with arduino development board 2's signal input part electricity, arduino development board 2's control end respectively with in the car audio alert module 51's input, the input of outer audio alert module 52 and on-vehicle display 6's input control connection, communication module 4 and arduino development board 2 to being connected.
The ghost probe accident early warning system based on information interaction is realized by adopting the following steps as shown in figure 2:
the method comprises the following steps that firstly, ultrasonic radars on two sides of the head of an automobile are used for detecting whether a pedestrian or a small motor vehicle transversely passes through the front of a current automobile within a preset distance range in real time, and data collected by the two ultrasonic radars are sent to an arduino development board in real time; meanwhile, the positioning data of the current vehicle is obtained in real time by using a position positioning module and is analyzed, the vehicle running information of the position, the speed and the course of the current vehicle is obtained when the current vehicle runs, the vehicle running information is sent to an arduino development board in real time, and the arduino development board receives the vehicle running information and stores the current front and rear groups of vehicle running information data of the vehicle in real time;
step two, judging whether a pedestrian exists in front of the vehicle or not by the arduino development board according to the received data sent by the ultrasonic radar, judging whether the current vehicle causes danger to the pedestrian or not by matching with the vehicle running information of the position positioning module, and finally judging whether an early warning signal that the pedestrian exists in front of the vehicle and the pedestrian is caused is generated or not; when judging, if the distance value of the ultrasonic radar received by the arduino development board twice before and after is changed by more than 15%, judging that a pedestrian or a small motor vehicle transversely passes through the front of the current vehicle, generating a corresponding character early warning signal to trigger a vehicle-mounted display of the current vehicle to work, and displaying character information that the pedestrian passes through the front vehicle; meanwhile, the arduino development board packs the early warning information of the current vehicle with pedestrian or small motor vehicle transverse crossing and danger caused by position information into an early warning information data packet;
thirdly, communication connection is achieved by using vehicles around the communication module, if the surrounding vehicle communication module receives the early warning information data packet, the vehicle receiving the early warning information data packet is taken as a signal receiving vehicle, the vehicle transmitting the early warning information data packet is taken as a signal source vehicle, the signal receiving vehicle sends the early warning information data packet to an arduino development board of the vehicle, the arduino development board preprocesses the received information to obtain position information of the signal source vehicle, and then the position information is compared with position and direction information of the vehicle, which are cached in the arduino development board of the signal receiving vehicle in real time, so that the position relation between the vehicle and the signal source vehicle is judged; if the self vehicle and the signal source vehicle are judged to be in the same driving direction and located behind the signal source vehicle, a vehicle-mounted display screen of a trigger signal receiving vehicle displays ghost probe accident information, and when the vehicle speed of the signal receiving vehicle at the moment is higher than 25km/h, an in-vehicle voice alarm module of the trigger signal receiving vehicle starts to remind a driver of avoiding a pedestrian ahead, danger information of threat to the pedestrian caused by the fact that the vehicle speed of the signal receiving vehicle is too high and danger feedback information of position information of the signal source vehicle in an early warning data packet sent by the signal source vehicle are generated and packaged into a danger feedback information data packet, and the danger feedback information data packet is shared out through a communication module;
and step four, the signal source vehicle receives the danger feedback information data packet through the communication module, the arduino development board of the signal source vehicle analyzes the danger feedback information data packet, the position information of the analyzed early warning signal is compared with the position information of the early warning signal sent by the signal source vehicle, if the comparison result is the same position information, the voice alarm module outside the vehicle of the signal source vehicle is triggered to work, and the voice alarm module outside the vehicle sends out voice to remind pedestrians to avoid the rear vehicle.
The ghost probe accident early warning system provided by the invention has the advantages that during testing, the lane width of a common urban road is designed to be 3.5m, the width of an urban bus is 2.5 m, vehicles are supposed to run in the middle of the lane, the distance between two adjacent vehicles is 1m, when a pedestrian passes through the front of the vehicle on the right side and is only 0.5m away from the right side of the vehicle, the vertical distance between the pedestrian and the vehicle on the adjacent lane is calculated to be 3.5m, and the speed of a detected object on a pedestrian road is designed to be V1The time t for the pedestrian to reach the position in the vertical direction of the signal receiving vehicle from the detected point can be calculated as 1.08m/s1The calculation formula is t1＝E/V1,t1After that, the safe running vehicle speed V of the signal receiving vehicle is calculated as 3.2s2,V2＝(t1-t2) μ g, wherein, t2The time interval t from the start of the in-vehicle voice alarm module of the signal source vehicle to the start of the in-vehicle voice alarm module of the signal receiving vehicle2Mu is 31ms, mu is 0.75, g is the earth gravity acceleration, and g is 9.8m/s2，V2＝21.24m/s, so that drivers of all vehicles with the speed of the signal receiving vehicle lower than 60.4km/h can reduce the speed to 0km/h before an accident happens through braking, vehicles exceeding the speed can also reduce the speed by 60.4km/h, and the aim of safe driving can be fulfilled in the driving process of an urban road; at the same time, the corresponding time of the person from the accident occurrence point is redesigned to be t3T, after the signal source vehicle receives the danger feedback information of the surrounding vehicle4If the voice reminding occurs to the pedestrian within 31ms, t is3＝t1-t2-t4Will t1、t2And t4Substituting into a calculation formula to obtain t3The numerical value of be about 3.1 seconds, it can receive early warning information about 3 seconds before the occurence of failure to draw the pedestrian through above-mentioned calculation, enough pedestrian stops the step this time, safely pass through again after standing by observation, realize people's car two-way early warning, through this inventor's test learn when not adopting this system pedestrian to the early warning time of blind area vehicle only about 0.93 seconds, make the pedestrian can't early warning at all, consequently, the emergence of ghost probe accident has thoroughly been avoided in the application of this system, safety coefficient is high, and the application of this system only need in the car relevant position install each part can, need not to change the car, strong applicability, flexibility.
The ghost probe accident early warning system based on information interaction measures whether a pedestrian or a small motor vehicle exists in front of a vehicle or not by using an ultrasonic radar of a head of the ghost probe accident early warning system, and a position positioning module collects current position information of the vehicle in real time, if the pedestrian or the small motor vehicle exists in front, a vehicle-mounted display works to remind a driver of the current vehicle of avoiding the pedestrian, and the walking safety of the pedestrian passing transversely is guaranteed; meanwhile, the data of the ultrasonic radar and the position information of the position positioning module are processed to form early warning information when causing danger and then are sent to the surrounding vehicles which are in communication connection in the signal range, the surrounding vehicles carry out analysis and processing according to the received data to obtain that the received information and the speed of the vehicle form danger to generate danger feedback information, and trigger the vehicle-mounted display and the in-vehicle voice alarm module to work to remind drivers of avoiding pedestrians and send the information to the signal source vehicle through the communication module, the signal source vehicle judges whether to be matched with the early warning information data sent by the signal source vehicle according to the received data, if the received data is matched with the early warning information data sent by the signal source vehicle, the out-vehicle voice alarm module is controlled to work to remind the pedestrians to avoid the vehicles right behind or side behind the signal source vehicle, so that the pedestrians can stop walking in time, and realize the two-, the potential safety hazard of the blind area of the pedestrian is eliminated, the occurrence of ghost probe accidents is effectively avoided, and the safety system is high; and the vehicle data are communicated, so that the perception range of the vehicle is expanded.
The above-described embodiments and drawings are not intended to limit the structure and manner of the present invention, and any suitable changes or modifications thereof by one of ordinary skill in the art should be considered as not departing from the scope of the present invention.
Claims (3)
1. Ghost probe accident early warning system based on information interaction, its characterized in that: the automobile front detection module consists of two ultrasonic radars which are respectively arranged in the left side and the right side of the automobile head and used for detecting whether pedestrians or motor vehicles pass transversely in front of the automobile, the position positioning module, the arduino development board and the communication module are all arranged in the automobile, the antennas of the position positioning module and the communication module are all connected with the shell of the automobile, the vehicle-mounted display is arranged in the automobile and positioned on the right side of an automobile inner instrument panel, the voice alarm module is provided with an automobile inner voice alarm module and an automobile outer voice alarm module, the automobile inner voice alarm module is arranged in the automobile and positioned beside the vehicle-mounted display, the automobile outer voice alarm module is arranged at the automobile head and embedded in the automobile, the output end of the ultrasonic radar and the output end of the position positioning module are electrically connected with the signal input end of the arduino development board, the control end of the arduino development board is respectively in control connection with the input end of the in-vehicle voice alarm module, the input end of the out-vehicle voice alarm module and the input end of the vehicle-mounted display, and the communication module is in bidirectional connection with the arduino development board;
the ghost probe accident early warning system based on information interaction is realized by adopting the following steps:
the method comprises the following steps that firstly, two ultrasonic radars are used for detecting whether a pedestrian or a small motor vehicle transversely passes through the front of a current vehicle within a preset distance range in real time, and data collected by the two ultrasonic radars are sent to an arduino development board in real time; meanwhile, the positioning data of the current vehicle is obtained in real time by utilizing the position positioning module and is analyzed, the vehicle running information of the position, the speed and the course of the current vehicle is obtained when the current vehicle runs, the vehicle running information is sent to the arduino development board in real time, and the arduino development board receives the vehicle running information and stores the current front and rear groups of vehicle running information data of the vehicle in real time;
step two, the arduino development board judges whether a pedestrian exists in front of the vehicle according to the received data sent by the ultrasonic radar, then the arduino development board is matched with the automobile running information of the position positioning module to judge whether the current vehicle causes danger to the pedestrian, and finally the arduino development board judges whether an early warning signal that the pedestrian exists in front of the vehicle and causes danger is generated; when judging, if the distance value of the ultrasonic radar received by the arduino development board twice before and after is changed by more than 15%, judging that a pedestrian or a small motor vehicle transversely passes through the front of the current vehicle, generating a corresponding character early warning signal to trigger a vehicle-mounted display of the current vehicle to work, and displaying character information that the pedestrian passes through the front vehicle; meanwhile, the arduino development board packs the early warning information of the current vehicle with pedestrian or small motor vehicle transverse crossing and danger caused by position information into an early warning information data packet;
thirdly, communication connection is achieved by using vehicles around the communication module, if the communication module of the vehicles around receives the early warning information data packet, the vehicle receiving the early warning information data packet is taken as a signal receiving vehicle, the vehicle transmitting the early warning information data packet is taken as a signal source vehicle, the signal receiving vehicle sends the early warning information data packet to an arduino development board of the vehicle, the arduino development board preprocesses the received information to obtain position information of the signal source vehicle, and then the position information is compared with position and direction information of the vehicle, which are cached in the arduino development board of the signal receiving vehicle in real time, so that the position relation between the vehicle and the signal source vehicle is judged; if the self vehicle and the signal source vehicle are judged to be in the same driving direction and located behind the signal source vehicle, a vehicle-mounted display screen of a trigger signal receiving vehicle displays ghost probe accident information, and when the vehicle speed of the signal receiving vehicle at the moment is higher than 25km/h, an in-vehicle voice alarm module of the trigger signal receiving vehicle starts to remind a driver of avoiding a pedestrian ahead, danger information of threat to the pedestrian caused by the fact that the vehicle speed of the signal receiving vehicle is too high and danger feedback information of position information of the signal source vehicle in an early warning data packet sent by the signal source vehicle are generated and packaged into a danger feedback information data packet, and the danger feedback information data packet is shared out through a communication module;
and step four, the signal source vehicle receives the danger feedback information data packet through the communication module, the arduino development board of the signal source vehicle analyzes the danger feedback information data packet, the position information of the analyzed early warning signal is compared with the position information of the early warning signal sent by the signal source vehicle, if the comparison result is the same position information, the voice alarm module outside the vehicle of the signal source vehicle is triggered to work, and the voice alarm module outside the vehicle sends out voice to remind pedestrians to avoid the rear vehicle.
2. The ghost probe accident warning system based on information interaction of claim 1, wherein: the ultrasonic radar is arranged on the front side wall of the automobile head and is close to the position of 0.5m on the side surface of the automobile head.
3. The ghost probe accident warning system based on information interaction of claim 1, wherein: the position positioning module is a Beidou/GPS dual-mode navigation positioning module, and the communication module is an HC-12 wireless serial port communication module.
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| CN112185170B (en) * | 2019-07-05 | 2023-02-28 | 浙江宇视科技有限公司 | Traffic safety prompting method and road monitoring equipment |
| CN110428662A (en) * | 2019-08-23 | 2019-11-08 | 玖安智能科技(杭州)有限公司 | Right side intelligent collision pre-warning management system and working method based on millimeter wave |
| CN111223333B (en) * | 2020-01-17 | 2021-11-12 | 上海银基信息安全技术股份有限公司 | Anti-collision method and device and vehicle |
| CN112092728A (en) * | 2020-09-10 | 2020-12-18 | 重庆长安汽车股份有限公司 | Reversing prompting system and method |
| CN113096443A (en) * | 2021-03-30 | 2021-07-09 | 安徽安凯汽车股份有限公司 | Pedestrian crossing early warning system of passenger car networking |
| CN114056232A (en) * | 2021-11-12 | 2022-02-18 | 安徽江淮汽车集团股份有限公司 | Vehicle voice alarm system based on platformized regional centralized control |
| CN114043931A (en) * | 2021-12-14 | 2022-02-15 | 常州希格斯智能科技有限公司 | Vehicle safety warning system and control method thereof |
| CN114056235A (en) * | 2021-12-24 | 2022-02-18 | 大连工业大学 | Ghost probe early warning system and method based on brake lamp identification |
| CN114394109A (en) * | 2022-02-16 | 2022-04-26 | 上海豪承信息技术有限公司 | Driving assistance method, device, equipment, medium and program product |
| CN116639151B (en) * | 2023-05-30 | 2023-11-28 | 武汉理工大学 | Unmanned vehicle control method and system based on pedestrian existence prediction in pavement blind area |
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