An on-vehicle intelligent early warning system based on radio wave technology

Abstract

The present invention discloses an on-vehicle intelligent early warning system based on radio wave technology, relates to the technical field of on-vehicle intelligent early warning, and solves the technical problem in the prior art that it is impossible to judge whether the current warning sign setting has safety hazards based on the warning sign setting analysis. Specifically, deceleration information and lane change information are obtained, and the warning sign setting analysis is judged to be qualified based on the information analysis; a warning sign setting analysis is performed on a faulty vehicle to judge whether the warning sign setting of the current faulty vehicle meets actual needs, thereby ensuring the effectiveness of the warning sign setting, minimizing the impact of the current faulty vehicle on the driving of subsequent vehicles, and improving the safety performance of the on-vehicle early warning system; a warning safety early warning analysis is performed on the faulty vehicle to judge whether the warning safety of the faulty vehicle during the on-vehicle early warning process meets actual needs.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted intelligent early warning technology, and in particular to a vehicle-mounted intelligent early warning system based on radio wave technology. Background Art

[0002] Radio waves or radio frequency waves refer to electromagnetic waves that propagate in free space (including air and vacuum); the on-board intelligent warning system can warn of various traffic accidents, such as collision, lane departure, blind spot monitoring, traffic light recognition, etc.; through these warning systems, the incidence of traffic accidents can be effectively reduced, driving safety can be improved, and the lives of drivers and passengers can be protected.

[0003] However, in the prior art, it is impossible to accurately analyze and determine whether the vehicle needs to stop based on the driving warning while the vehicle is driving, so that the vehicle trajectory cannot be accurately controlled, which reduces the warning efficiency. At the same time, the parking position cannot be set according to the vehicle position, resulting in reduced feasibility of vehicle warning. In addition, it is impossible to analyze the warning sign settings and determine whether the current warning sign settings have safety hazards, and the practicality of the on-board intelligent warning cannot be guaranteed.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems and to propose a vehicle-mounted intelligent early warning system based on radio wave technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An on-vehicle intelligent warning system based on radio wave technology includes an on-vehicle warning platform, and the on-vehicle warning platform is connected to:

[0008] The vehicle driving warning unit is used to set a running vehicle with a fault as a faulty vehicle, set a faulty component according to the faulty component of the faulty vehicle, set a fault parameter according to the faulty component, and construct a fault period of the faulty vehicle with the corresponding warning light reminder time of the faulty vehicle as the starting time and the current system time; collect driving warning information according to the faulty period, substitute it into the formula to obtain the vehicle driving warning coefficient, and judge whether the current faulty vehicle continues to drive according to the comparison of the vehicle driving warning coefficient;

[0009] The parking position analysis and setting unit is used to mark the current lane of the faulty vehicle as the real-time lane, and mark the rightmost emergency lane as the emergency parking lane, obtain traffic flow data and vehicle speed data, divide the current time period into a lane high-impact time period or a lane low-impact time period according to data analysis, obtain duration data and spacing data, divide the current time period into a lane change high-risk time period or a lane change low-risk time period according to data comparison, and set the parking point of the faulty vehicle according to time period type comparison;

[0010] A warning sign setting analysis unit is used to uniformly mark the visible distance and radio wave transmission coverage distance of the current setting location environment of the real-time warning sign as a warning safety distance, obtain deceleration information and lane change information, and determine whether the warning sign setting analysis is qualified based on information analysis;

[0011] The warning safety early warning analysis unit is used to obtain the warning coefficient ratio and the lane change influence coefficient ratio, and judge whether the faulty vehicle warning safety early warning analysis is qualified according to the ratio comparison.

[0012] As a preferred embodiment of the present invention, the driving warning information includes the floating frequency of the deviation value between the real-time value of the fault parameter corresponding to the fault vehicle during the fault period and the red line value, the overlapping duration of the period when the warning light of the faulty vehicle is on and the period when the fault parameter of the faulty component is lower than the red line value, and the maximum reciprocating floating value of the fault parameter of the faulty component during the fault period and the maximum reciprocating floating value of the fault parameter under the premise of no external intervention in the historical driving process.

[0013] As a preferred implementation of the present invention, the coefficient comparison process is as follows:

[0014] If the faulty vehicle driving warning coefficient exceeds the faulty vehicle driving warning coefficient threshold, a stop driving signal is generated and sent to the vehicle warning platform;

[0015] If the faulty vehicle driving warning coefficient does not exceed the faulty vehicle driving warning coefficient threshold, a low-speed departure signal is generated and sent to the vehicle-mounted warning platform.

[0016] As a preferred embodiment of the present invention, the traffic flow data and the vehicle speed data are respectively the instantaneous increase speed of the traffic flow in the lane where the faulty vehicle is located in real time after the on-board warning and the corresponding interval lane of the emergency parking lane, and the excess value of the average speed of the vehicles in the lane where the faulty vehicle is located in real time after the on-board warning and the average speed of the vehicles in all the current lanes;

[0017] If the traffic flow data exceeds the instantaneous increase speed threshold of the traffic flow, or the speed data exceeds the excess threshold of the average speed value, the current period is marked as a lane high impact period;

[0018] If the traffic flow data does not exceed the instantaneous increase speed threshold of the traffic flow, and the vehicle speed data does not exceed the excess threshold of the average speed value, the current period is marked as a lane low impact period.

[0019] As a preferred embodiment of the present invention, the duration data and the spacing data are respectively the mean time deviation between the vehicle passing interval time of the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane and the minimum time required for lane change, and the minimum vertical spacing value of vehicles passing the horizontal position of the fault point between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane;

[0020] If the duration data is lower than the duration deviation threshold, or the spacing data is lower than the minimum vertical spacing value threshold, the current period is marked as a high-risk period for lane change;

[0021] If the duration data is higher than the duration deviation threshold, and the spacing data is higher than the minimum vertical spacing value threshold, the current period is marked as a low-risk period for lane change.

[0022] As a preferred implementation mode of the present invention, a type comparison analysis is performed according to the current time period of the on-board warning of the faulty vehicle. If the current time period is a low-impact time period for the lane or a low-risk time period for lane change, the parking position of the current faulty vehicle is set to the emergency parking lane; if the time period is a high-impact time period for the lane or a high-risk time period for lane change, the parking position of the current faulty vehicle is set to the real-time lane, and the rescue vehicle sets the road section distance in advance when driving to the parking position and diverts the vehicles in the current real-time lane at the set road section distance; and the real-time set parking position is sent to the on-board warning platform.

[0023] As a preferred embodiment of the present invention, the deceleration information and lane change information are respectively the deviation between the proportion of vehicles without deceleration and the proportion of vehicles without deceleration among subsequent passing vehicles that enter the warning safety distance after the warning warning sign is set, and the maximum interval distance between vehicles without deceleration and the lane change position of vehicles within the warning safety distance after the warning warning sign is set.

[0024] As a preferred embodiment of the present invention, if the deceleration information exceeds the quantity proportion deviation threshold, or the lane change information exceeds the position maximum interval distance threshold, a setting analysis abnormal signal is generated; if the deceleration information does not exceed the quantity proportion deviation threshold, and the lane change information does not exceed the position maximum interval distance threshold, a setting analysis normal signal is generated.

[0025] As a preferred embodiment of the present invention, the warning coefficient ratio and the lane change influence coefficient ratio are respectively the corresponding numerical ratios of the shortest interval distance between the deceleration position of the passing vehicle and the fault point after the faulty vehicle warning sign is set and the maximum span value of the passing vehicle deceleration, and the ratio of the number of lane changes after the passing vehicle receives the warning signal after the faulty vehicle warning sign is set to the number of lane changes before the passing vehicle receives the warning signal.

[0026] As a preferred implementation of the present invention, if the warning coefficient ratio exceeds the warning coefficient ratio threshold, and the lane change influence coefficient ratio does not exceed the lane change influence coefficient ratio threshold, a safety warning analysis qualified signal is generated;

[0027] If the warning coefficient ratio does not exceed the warning coefficient ratio threshold, or the lane change impact coefficient ratio exceeds the lane change impact coefficient ratio threshold, a safety warning analysis failure signal is generated.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, a driving warning is given to the driving vehicle, and after a driving failure, an analysis is performed according to the fault type to determine whether the current vehicle needs to pull over after the driving failure, so as to avoid the vehicle continuing to drive instead of stopping in time when a vehicle failure occurs, resulting in the vehicle being unable to move in the lane, causing more continuous congestion, and also reducing the driving safety performance; the real-time parking position of the faulty vehicle is analyzed and set to ensure that the faulty vehicle can be in a safe position after receiving the on-board warning and stopping in time, ensuring the safety of the on-board warning, and at the same time, when the faulty vehicle performs a parking warning, the impact on vehicles passing in other lanes can be reduced, thereby improving the comprehensiveness of the on-board warning.

[0030] 2. In the present invention, a warning sign setting analysis is performed on the faulty vehicle to determine whether the warning sign setting of the current faulty vehicle meets the actual needs, thereby ensuring the effectiveness of the warning sign setting, minimizing the impact of the current faulty vehicle on the driving of subsequent vehicles, and improving the safety performance of the on-board warning system; a warning safety early warning analysis is performed on the faulty vehicle to determine whether the warning safety of the faulty vehicle during the on-board early warning process meets the actual needs, so as to ensure the safety early warning efficiency of the faulty vehicle, ensure that the on-board early warning of the faulty vehicle can reduce the impact on the driving of other vehicles, and improve the intelligent performance and safety performance of the on-board early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0032] Figure 1 It is a principle block diagram of the whole invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] An on-vehicle intelligent warning system based on radio wave technology includes an on-vehicle warning platform, which is communicatively connected to a vehicle driving warning unit, a parking position analysis and setting unit, a warning sign setting and analysis unit, and a warning safety warning analysis unit;

[0036] Embodiment 1

[0037] There is a risk that the vehicle will stall and become unable to move during driving. This embodiment provides a vehicle driving warning to address this problem, so as to ensure safety warning protection based on radio wave technology when the vehicle is driving. Please refer to Figure 1 As shown, the vehicle warning platform generates a vehicle driving warning signal and sends the vehicle driving warning signal to the vehicle driving warning unit. After receiving the vehicle driving warning signal, the vehicle driving warning unit performs a driving warning on the driving vehicle, and analyzes the fault type after a driving fault to determine whether the current vehicle needs to pull over after the driving fault, so as to avoid the vehicle continuing to drive instead of stopping in time when a vehicle fault occurs, resulting in the vehicle being unable to move in the lane, causing more continuous congestion, and also reducing the driving safety performance;

[0038] A running vehicle with a fault is set as a faulty vehicle, and a faulty component is set according to the faulty component of the faulty vehicle. If the faulty component is an engine fault, the faulty component is the engine; if the faulty component is a fuel tank, the faulty component is the fuel tank; a fault parameter is set according to the faulty component. If the cause of the faulty component is engine blockage, the fault parameter is the engine fuel supply floating amount; if the cause of the fuel tank faulty component is fuel tank leakage, the fault parameter is the engine fuel tank reduction speed;

[0039] The fault time period of the faulty vehicle is constructed by taking the corresponding warning light reminder time of the faulty vehicle as the starting time and the current system time;

[0040] The floating frequency of the deviation between the real-time value of the fault parameter of the faulty vehicle and the red line value during the fault period is obtained, where the red line value represents the data threshold of the fault parameter fault. The corresponding deviation value fluctuates specifically according to the positive or negative value of the deviation value. If it is positive, it exceeds the red line value, and if it is negative, it is lower than the red line value. The stability of the fault parameter of the current faulty vehicle can be inferred based on the floating frequency of the deviation value, and the floating frequency of the deviation between the real-time value of the fault parameter of the faulty vehicle and the red line value during the fault period is marked as FCP;

[0041] Obtain the overlapping time of the faulty vehicle warning light on period and the faulty component fault parameter lower than the red line value period within the fault period, and judge whether the faulty component fault parameter still causes the warning light alarm when it is qualified according to the overlapping time, so as to evaluate the persistence of the fault, avoid fault deviation caused by value fluctuation, and fail to stop the vehicle in time, and mark the overlapping time of the faulty vehicle warning light on period and the faulty component fault parameter lower than the red line value period within the fault period as DCS;

[0042] The excess of the maximum reciprocating floating value of the fault parameter of the faulty component during the fault period and the maximum reciprocating floating value of the fault parameter in the historical driving process without external intervention is obtained, and the excess of the maximum reciprocating floating value of the fault parameter of the faulty component during the fault period and the maximum reciprocating floating value of the fault parameter in the historical driving process without external intervention is marked as SCD; wherein, the historical comparison of the fault parameters is used to determine whether the current faulty component has the possibility of recovery, such as the fluctuation of the engine fuel supply, the blockage of the fuel supply pipeline may be flushed away, and the fuel supply may be restored, on the contrary, the oil tank leakage is difficult to recover without external interference, so according to the historical comparison, it can be determined whether the current vehicle needs to stop;

[0043] The above collected data are uniformly marked as driving warning information, and substituted into the formula to obtain the fault vehicle driving warning coefficient GZ, where the formula is , where po1, po2 and po3 are the preset proportional coefficients of the deviation value floating frequency, the time period overlap duration and the excess value respectively, and α is the error correction factor of the preset proportional coefficient, which is 0.98, and β is the error correction coefficient, which is 1.01;

[0044] Compare the faulty vehicle driving warning coefficient GZ with the faulty vehicle driving warning coefficient threshold:

[0045] If the faulty vehicle driving warning coefficient GZ exceeds the faulty vehicle driving warning coefficient threshold, the faulty vehicle driving warning analysis is determined to be abnormal, a stop driving signal is generated and sent to the vehicle warning platform. After the vehicle warning platform receives the stop driving signal, the faulty vehicle sends a vehicle fault signal to the current faulty vehicle maintenance and after-sales manufacturer via radio waves;

[0046] If the faulty vehicle driving warning coefficient GZ does not exceed the faulty vehicle driving warning coefficient threshold, it is determined that the faulty vehicle driving warning analysis is normal, and a low-speed departure signal is generated and sent to the vehicle warning platform. After receiving the low-speed departure signal, the vehicle warning platform uses the nearest auto repair point around the faulty vehicle as the center as the low-speed departure end point, and imposes lane restrictions on the faulty vehicle, that is, driving in the rightmost lane, and controls the driving speed;

[0047] At the same time, a parking position analysis setting signal is generated and sent to a parking position analysis setting unit. After receiving the parking position analysis setting signal, the parking position analysis setting unit analyzes and sets the real-time parking position of the faulty vehicle to ensure that the faulty vehicle can be in a safe position after receiving the vehicle-borne warning and parking in time, thereby ensuring the safety of the vehicle-borne warning. At the same time, when the faulty vehicle performs a parking warning, the impact on vehicles passing in other lanes can be reduced, thereby improving the comprehensiveness of the vehicle-borne warning.

[0048] The current lane of the faulty vehicle is marked as the real-time lane, and the rightmost emergency lane is marked as the emergency parking lane. The instantaneous increase speed of the traffic flow in the lane corresponding to the interval lane between the real-time lane and the emergency parking lane after the faulty vehicle on-board warning and the excess value of the average speed of vehicles in the real-time lane after the faulty vehicle on-board warning and the average speed of vehicles in all current lanes are obtained. The instantaneous increase speed of the traffic flow in the lane corresponding to the interval lane between the real-time lane and the emergency parking lane after the faulty vehicle on-board warning and the excess value of the average speed of vehicles in the real-time lane after the faulty vehicle on-board warning and the average speed of vehicles in all current lanes are marked as traffic data and speed data, respectively, and compared with the instantaneous increase speed threshold of traffic flow and the excess value threshold of average speed, respectively:

[0049] If the instantaneous increase speed of the traffic volume in the lane where the faulty vehicle is located in real time after the on-board warning and the lane between the emergency parking lanes exceeds the threshold of the instantaneous increase speed of the traffic volume, or the value of the average speed of the vehicle in the lane where the faulty vehicle is located in real time after the on-board warning exceeds the average speed of the vehicle in all lanes at present by more than the threshold of the average speed value excess, then it is determined that the lane where the faulty vehicle is currently located in real time has an impact, and the current period is marked as a high-impact period of the lane;

[0050] If the instantaneous increase speed of the traffic volume in the lane where the faulty vehicle is located in real time after the on-board warning and the lane between the emergency parking lane does not exceed the threshold of the instantaneous increase speed of the traffic volume, and the excess of the average speed of the vehicles in the lane where the faulty vehicle is located in real time after the on-board warning and the average speed of the vehicles in all the current lanes does not exceed the threshold of the excess of the average speed value, it is determined that the lane where the faulty vehicle is currently located in real time has no impact, and the current period is marked as a lane low impact period;

[0051] The time deviation between the average time difference between the vehicle passing interval between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane and the minimum time required for lane change is obtained, and at the same time, the position of the faulty vehicle is set as the fault point, and the minimum vertical spacing value of vehicles passing the horizontal position of the fault point adjacent to the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane is obtained, and the time deviation between the average time difference between the vehicle passing interval between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane and the minimum time required for lane change, and the minimum vertical spacing value of vehicles passing the horizontal position of the fault point adjacent to the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane are marked as time data and spacing data, respectively, and compared with the time deviation threshold and the minimum vertical spacing value threshold, respectively: wherein the minimum vertical spacing value of vehicles is represented by the vertical spacing between the position of the real-time passing vehicle and the position of the vehicle in the adjacent interval lane that is about to pass the horizontal position of the fault point when a vehicle in any lane in the interval lane passes the horizontal position of the fault point;

[0052] If the time deviation between the average of the vehicle interval time between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane and the minimum time required for lane change is lower than the time deviation threshold, or the minimum vertical distance between the vehicles passing the fault point at the horizontal position between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane is lower than the minimum vertical distance threshold, it is judged that there is a high risk for the faulty vehicle to change lanes from the lane where it is located in real time to the emergency parking lane, and the current time period is marked as a high-risk time period for lane change;

[0053] If the time deviation between the average of the vehicle passage interval time between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane and the minimum time required for lane change is higher than the time deviation threshold, and the minimum vertical spacing value between the vehicles passing the fault point at the horizontal position of the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane is higher than the minimum vertical spacing value threshold, it is judged that there is a low risk for the faulty vehicle to change lanes from the lane where it is located in real time to the emergency parking lane, and the current time period is marked as a low-risk time period for lane change;

[0054] Perform type comparison analysis based on the current time period of the faulty vehicle's onboard warning. If the current time period is a low-impact time period for the lane or a low-risk time period for lane change, set the parking position of the current faulty vehicle to the emergency parking lane. The current situation includes the current time period being a low-impact time period for the lane and a high-risk time period for lane change, a low-impact time period for the lane and a low-risk time period for lane change, and a high-impact time period for the lane and a low-impact time period for lane change. If the time period is a high-impact time period for the lane or a high-risk time period for lane change, set the parking position of the current faulty vehicle to the real-time lane, and set the road section distance in advance when the rescue vehicle drives to the parking position, and divert vehicles in the current real-time lane at the set road section distance.

[0055] And send the real-time set parking position to the vehicle warning platform;

[0056] Embodiment 2

[0057] After receiving the parking position, the vehicle warning platform will set a warning sign and broadcast it in the faulty vehicle through voice. If the faulty vehicle is in a lane where a warning sign cannot be set, the warning sign signal will be sent based on radio wave technology and continuously sent to subsequent vehicles. After receiving it, the smart terminal of the subsequent vehicle will automatically issue an obstacle warning based on the warning sign radio wave transmission position; at the same time, the real-time set warning sign and the radio wave transmitted warning sign signal are uniformly marked as the warning sign setting;

[0058] At the same time, a warning sign setting analysis signal is generated and sent to the warning sign setting analysis unit. After receiving the warning sign setting analysis signal, the warning sign setting analysis unit performs a warning sign setting analysis on the faulty vehicle to determine whether the warning sign setting of the current faulty vehicle meets the actual demand, thereby ensuring the effectiveness of the warning sign setting, minimizing the impact of the current faulty vehicle on the driving of subsequent vehicles, and improving the safety performance of the vehicle-mounted warning system;

[0059] The visible distance and radio wave transmission coverage distance of the current setting location environment of the real-time warning sign are uniformly marked as the early warning safety distance, and the deviation between the proportion of vehicles without deceleration and the proportion of vehicles without deceleration in the subsequent passing vehicles that enter the early warning safety distance after the early warning sign is set is obtained. At the same time, the maximum interval distance between the vehicles without deceleration in the subsequent passing vehicles that enter the lane change position within the early warning safety distance after the early warning sign is set is obtained, and the deviation between the proportion of vehicles without deceleration and the proportion of vehicles without deceleration in the subsequent passing vehicles that enter the early warning safety distance after the early warning sign is set, and the maximum interval distance between the vehicles without deceleration in the subsequent passing vehicles that enter the lane change position within the early warning safety distance after the early warning sign is set is set as the deceleration information and the lane change information, and are compared with the quantity proportion deviation threshold and the position maximum interval distance threshold respectively:

[0060] If, after the early warning sign is set, the deviation between the proportion of vehicles without deceleration in the subsequent passing vehicles that enter the early warning safety distance and the proportion of vehicles without deceleration exceeds the quantity ratio deviation threshold, or if the maximum interval distance between vehicles without deceleration in the subsequent passing vehicles that enter the early warning safety distance exceeds the position maximum interval distance threshold, then the setting analysis of the warning sign of the faulty vehicle is determined to be abnormal, and a setting analysis abnormality signal is generated and sent to the on-board early warning platform, which controls the range of the radio waves of the faulty vehicle and issues a safety warning to people around the faulty vehicle;

[0061] If after the early warning sign is set, the deviation between the proportion of vehicles without deceleration in the subsequent passing vehicles that enter the early warning safety distance and the proportion of vehicles without deceleration does not exceed the number ratio deviation threshold, and after the early warning sign is set, the maximum interval distance between the lane change positions of vehicles without deceleration in the subsequent passing vehicles that enter the early warning safety distance does not exceed the position maximum interval distance threshold, then it is determined that the setting analysis of the faulty vehicle warning sign is normal, and a setting analysis normal signal is generated and sent to the vehicle-mounted early warning platform;

[0062] At the same time, a warning safety early warning analysis signal is generated and sent to the warning safety early warning analysis unit. After receiving the warning safety early warning analysis signal, the warning safety early warning analysis unit performs a warning safety early warning analysis on the faulty vehicle to determine whether the warning safety of the faulty vehicle during the on-board early warning process meets the actual demand, so as to ensure the efficiency of the safety early warning of the faulty vehicle, ensure that the on-board early warning of the faulty vehicle can reduce the impact on the driving of other vehicles, and improve the intelligent performance and safety performance of the on-board early warning;

[0063] The numerical ratio of the shortest interval between the deceleration position of the passing vehicle and the fault point after the faulty vehicle warning sign is set and the corresponding numerical ratio of the shortest interval between the deceleration position of the passing vehicle and the fault point and the maximum span value of the passing vehicle deceleration after the faulty vehicle warning sign is set is obtained, and the numerical ratio of the shortest interval between the deceleration position of the passing vehicle and the fault point and the maximum span value of the passing vehicle deceleration after the faulty vehicle warning sign is set is marked as the warning coefficient ratio. At the same time, the quantitative ratio of the number of lane changes after the passing vehicle receives the warning signal after the faulty vehicle warning sign is set to the number of lane changes before the passing vehicle receives the warning signal is obtained, and the quantitative ratio of the number of lane changes after the passing vehicle receives the warning signal after the faulty vehicle warning sign is set to the number of lane changes before the passing vehicle receives the warning signal is marked as the lane change influence coefficient ratio, wherein receiving the warning signal means that the real-time position of the passing vehicle and the setting position of the warning sign are within the visible distance of the current environment, or the passing vehicle receives the radio wave sent by the faulty vehicle; and compared with the warning coefficient ratio threshold and the lane change influence coefficient ratio threshold respectively:

[0064] If the ratio of the shortest interval between the deceleration position of the passing vehicle and the fault point and the corresponding value of the maximum span value of the passing vehicle deceleration after the faulty vehicle warning sign is set exceeds the warning coefficient ratio threshold, and the ratio of the number of lane changes after the passing vehicle receives the warning signal to the number of lane changes before the passing vehicle receives the warning signal after the faulty vehicle warning sign is set does not exceed the lane change impact coefficient ratio threshold, then the warning safety warning analysis of the faulty vehicle is determined to be qualified, a safety warning analysis qualified signal is generated and the safety warning analysis qualified signal is sent to the vehicle-mounted warning platform;

[0065] If after the faulty vehicle warning sign is set, the ratio of the shortest interval between the deceleration position of the passing vehicle and the fault point to the corresponding value of the maximum span value of the passing vehicle deceleration does not exceed the warning coefficient ratio threshold, or after the faulty vehicle warning sign is set, the ratio of the number of lane changes of the passing vehicle after receiving the warning signal to the number of lane changes of the passing vehicle before receiving the warning signal exceeds the lane change impact coefficient ratio threshold, then the warning safety warning analysis of the faulty vehicle is determined to be unqualified, and a safety warning analysis unqualified signal is generated and sent to the on-board warning platform. After the on-board warning platform receives the safety warning analysis unqualified signal, the safety warning of the faulty vehicle is reset, that is, the transmission distance and transmission frequency of the radio wave are expanded;

[0066] The above formulas are obtained by collecting a large amount of data and performing software simulation, and a formula close to the actual value is selected. The coefficients in the formula are set by technicians in this field according to actual conditions;

[0067] When the present invention is in use, the vehicle driving warning unit collects driving warning information, substitutes it into the formula to obtain the vehicle driving warning coefficient, and judges whether the current faulty vehicle continues to drive according to the comparison of the vehicle driving warning coefficient; the parking position analysis and setting unit obtains the traffic data and the speed data, divides the current time period into a lane high impact time period or a lane low impact time period according to the data analysis, obtains the duration data and the spacing data, divides the current time period into a lane change high risk time period or a lane change low risk time period according to the data comparison, and sets the parking point of the faulty vehicle according to the time period type comparison; the warning sign setting analysis unit obtains the deceleration information and the lane change information, and judges whether the warning sign setting analysis is qualified according to the information analysis; the warning safety warning analysis unit obtains the warning coefficient ratio and the lane change impact coefficient ratio, and judges whether the faulty vehicle warning safety warning analysis is qualified according to the ratio comparison.

[0068] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle-mounted intelligent early warning system based on radio wave technology, characterized in that: Including the vehicle warning platform, the vehicle warning platform communication connections are: The vehicle driving warning unit is used to set a running vehicle with a fault as a faulty vehicle, set a faulty component according to the faulty component of the faulty vehicle, set a fault parameter according to the faulty component, and construct a fault period of the faulty vehicle with the time when the warning light corresponding to the faulty vehicle is turned on as the starting time and the current system time; The driving warning information is collected according to the fault period, and the driving warning information includes the floating frequency of the deviation value between the real-time value of the fault parameter corresponding to the fault vehicle during the fault period and the red line value, the overlapping time of the period when the fault vehicle warning light is on and the period when the fault parameter of the fault component is lower than the red line value, and the maximum reciprocating floating value of the fault parameter of the fault component during the fault period and the maximum reciprocating floating value of the fault parameter without external intervention in the historical driving process, and the labels FCP, DCS and SCD are set respectively; Substitute into the formula The vehicle driving warning coefficient GZ is obtained, and the current fault vehicle is judged whether to continue driving according to the comparison of the vehicle driving warning coefficient; among them, po1, po2 and po3 are the preset proportional coefficients of the deviation value floating frequency, the time period overlap duration and the excess value, and α is the error correction factor of the preset proportional coefficient, which is 0.98, and β is the error correction coefficient, which is 1.01; the coefficient comparison process is as follows: If the faulty vehicle driving warning coefficient exceeds the faulty vehicle driving warning coefficient threshold, a stop driving signal is generated and sent to the vehicle warning platform; If the faulty vehicle driving warning coefficient does not exceed the faulty vehicle driving warning coefficient threshold, a low-speed departure signal is generated and sent to the vehicle-mounted warning platform; The parking position analysis and setting unit is used to mark the current lane of the faulty vehicle as the real-time lane, and mark the rightmost emergency lane as the emergency parking lane, obtain the traffic flow data and vehicle speed data, and divide the current time period into a lane high-impact time period or a lane low-impact time period according to the data analysis; The traffic flow data and vehicle speed data are respectively the instantaneous increase speed of the traffic flow in the lane where the faulty vehicle is located in real time after the on-board warning and the corresponding interval lane of the emergency parking lane, and the excess value of the average speed of the vehicles in the lane where the faulty vehicle is located in real time after the on-board warning and the average speed of the vehicles in all lanes at present; If the traffic flow data exceeds the instantaneous increase speed threshold of the traffic flow, or the speed data exceeds the excess threshold of the average speed value, the current period is marked as a lane high impact period; If the traffic flow data does not exceed the instantaneous increase speed threshold of the traffic flow, and the vehicle speed data does not exceed the excess threshold of the average speed value, the current period is marked as a lane low impact period; The duration data and spacing data are obtained, and the current time period is divided into a high-risk lane change period or a low-risk lane change period according to data comparison, and the parking point of the faulty vehicle is set according to the time period type comparison; the duration data and spacing data are respectively the deviation between the average of the vehicle passage interval time between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane and the minimum time required for lane change, and the minimum vertical spacing value of vehicles passing the horizontal position of the fault point between the lane where the faulty vehicle is located in real time after the on-board warning and the interval lane corresponding to the emergency parking lane; the minimum vertical spacing value of vehicles is represented by the vertical spacing between the position of the real-time passing vehicle and the position of the vehicle in the adjacent interval lane that is about to pass the horizontal position of the fault point when a vehicle in any lane in the interval lane passes the horizontal position of the fault point; If the duration data is lower than the duration deviation threshold, or the spacing data is lower than the minimum vertical spacing value threshold, the current period is marked as a high-risk period for lane change; If the duration data is higher than the duration deviation threshold, and the spacing data is higher than the minimum vertical spacing value threshold, the current period is marked as a low-risk period for lane change; Perform type comparison analysis based on the current time period of the faulty vehicle's onboard warning. If the current time period is a low-impact time period for lanes or a low-risk time period for lane changes, set the parking position of the current faulty vehicle to the emergency parking lane; if the time period is a high-impact time period for lanes or a high-risk time period for lane changes, set the parking position of the current faulty vehicle to the real-time lane, and set the road section distance in advance when the rescue vehicle drives to the parking position, and divert vehicles in the current real-time lane at the set road section distance; and send the real-time set parking position to the onboard warning platform; After receiving the parking position, the vehicle warning platform will set a warning sign and broadcast it in the faulty vehicle through voice. If the faulty vehicle is in a lane where a warning sign cannot be set, the warning sign signal will be sent based on radio wave technology and continuously sent to subsequent vehicles. After receiving it, the smart terminal of the subsequent vehicle will automatically issue an obstacle warning based on the warning sign radio wave transmission position; at the same time, the real-time set warning sign and the radio wave transmitted warning sign signal are uniformly marked as the warning sign setting; The warning safety early warning analysis unit is used to obtain the warning coefficient ratio and the lane change influence coefficient ratio, and judge whether the faulty vehicle warning safety early warning analysis is qualified according to the ratio comparison; the warning coefficient ratio and the lane change influence coefficient ratio are respectively the corresponding numerical ratio of the shortest interval distance between the deceleration position of the passing vehicle and the fault point after the faulty vehicle early warning warning sign is set and the maximum span value of the passing vehicle deceleration, and the ratio of the number of lane changes after the passing vehicle receives the warning signal after the faulty vehicle early warning warning sign is set to the number of lane changes before the passing vehicle receives the warning signal.

2. According to claim 1, a vehicle-mounted intelligent warning system based on radio wave technology is characterized in that: If the warning coefficient ratio exceeds the warning coefficient ratio threshold, and the lane change impact coefficient ratio does not exceed the lane change impact coefficient ratio threshold, a safety warning analysis qualified signal is generated; If the warning coefficient ratio does not exceed the warning coefficient ratio threshold, or the lane change impact coefficient ratio exceeds the lane change impact coefficient ratio threshold, a safety warning analysis failure signal is generated.

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