A smart city rapid emergency personnel and vehicle dispatch system

Abstract

The present invention discloses a smart city rapid emergency personnel vehicle dispatching system, which relates to the field of smart city technology. The scene layout module is used to arrange road scenes for rapid emergency personnel vehicles, the vehicle information module is used to collect information of rapid emergency personnel vehicles, the route planning module is used to plan the optimal driving route of the rapid emergency personnel vehicles, and the data processing module is used to calculate and process data of the vehicle information module and the scene layout module. The present invention uses the scene layout module to arrange the scenes of the rapid emergency personnel vehicles, and uses the route planning unit to plan the optimal driving route. In the process of route planning, the length of the route and the number of intersections are fully considered, because the length of the route and the number of intersections will affect the time of emergency rescue. Therefore, the route planned according to these conditions will be optimal, which will win valuable time for emergency rescue.

Description

Technical Field

[0001] The present invention relates to the technical field of smart cities, and in particular to a smart city rapid emergency personnel and vehicle dispatching system. Background Art

[0002] Rapid emergency personnel include firefighters, medical staff and public security personnel. Rapid emergency personnel travel on the roads of the city every day to protect people's lives and property. However, with the continuous improvement of people's living standards, cars have become people's mainstream means of transportation. The increase in cars will not only pollute the environment, but also lead to congestion in urban road traffic. When rapid emergency personnel vehicles need to rescue people's lives and property, the congestion of the road may delay the golden rescue time. If a special lane for rapid emergency personnel vehicles is set up on urban roads, it will further lead to road traffic congestion. At the same time, it will also cause a waste of traffic resources. Therefore, how to open up an unobstructed channel in time when rapid emergency personnel vehicles need rescue has become a problem to be solved. Therefore, people need a smart city rapid emergency personnel vehicle dispatching system and method to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a smart city rapid emergency personnel vehicle dispatching system to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a smart city rapid emergency personnel vehicle dispatching system, the rapid emergency personnel vehicle dispatching system comprising a scene arrangement module, a vehicle information module, a route planning module, a data processing module and a voice reminder module;

[0005] The scene arrangement module is used to arrange road scenes for the rapid emergency personnel vehicles, the vehicle information module is used to collect information about the rapid emergency personnel vehicles, and the route planning module is used to plan the optimal driving route for the rapid emergency personnel vehicles, so as to shorten the driving time of the emergency personnel vehicles and win valuable rescue time for the emergency personnel. The data processing module is used to calculate and process the data of the vehicle information module and the scene arrangement module. The voice reminder module is a loudspeaker installed on the traffic light at the intersection of urban roads, and reminds social vehicles to avoid a clear passage for the rapid emergency personnel vehicles through voice broadcast. For example, the voice reminder module broadcasts the following information to remind social vehicles to pay attention to avoidance: "The rapid emergency personnel vehicle will enter the right turn lane within 30 seconds, please do not enter the right turn lane";

[0006] The output end of the vehicle information module is electrically connected to the input end of the scene arrangement module, the output end of the scene arrangement module is electrically connected to the input end of the route planning module and the data processing module, and the output end of the data processing module is electrically connected to the input end of the voice reminder module.

[0007] According to the above technical solution, the scene layout module includes a map import unit, an intersection annotation unit, a signal light import unit and a coordinate system import unit;

[0008] The map importing unit is used to import a map of a certain area into the system, and the imported map includes every lane and every intersection on the road, so that the optimal driving route of the rapid emergency personnel vehicle can be planned on the imported map; the intersection marking unit is used to mark each intersection of the regional map imported by the map importing unit, so that the distance between the rapid emergency personnel vehicle and each intersection on the optimal driving route can be determined; the traffic light importing unit is used to import the traffic light information of each intersection, so that the rapid emergency personnel vehicle dispatching system determines whether it is necessary for social vehicles to open up an unobstructed channel; the coordinate system establishing unit is used to establish a plane rectangular coordinate system of the regional map imported by the map importing unit, so as to locate the coordinate value of each point on the regional map.

[0009] According to the above technical solution, the vehicle information module includes a Beidou positioning unit, a speed collection unit and a destination input unit;

[0010] The Beidou positioning unit is used to locate the emergency personnel vehicle in real time, so that the position information of the fast emergency personnel vehicle can be obtained in time, so as to temporarily open up an unobstructed channel for the fast emergency personnel vehicle without affecting normal road traffic; the speed collection unit is used to collect the speed information of the emergency personnel vehicle, and determine whether it is necessary for social vehicles to open up an unobstructed channel based on the speed information and the distance to the intersection; the destination input unit is used to input the destination information of the fast emergency personnel vehicle, and cooperate with the Beidou positioning unit to plan the best driving route for the emergency personnel vehicle.

[0011] According to the above technical solution, the data processing module includes an avoidance confirmation unit, a threshold analysis unit, a distance calculation unit and a central control unit;

[0012] The avoidance confirmation unit determines the color of the traffic light at the intersection when the fast emergency personnel vehicle arrives at the intersection based on the signal light import unit and the speed acquisition unit. When the fast emergency personnel vehicle arrives at the intersection, the traffic light at the intersection is red. At this time, social vehicles need to avoid. When the fast emergency personnel vehicle arrives at the intersection, the traffic light at the intersection is green. At this time, social vehicles do not need to avoid. The threshold analysis unit is used to analyze the distance threshold of the fast emergency personnel vehicle from the intersection when it is determined that the traffic light at the intersection is red when the fast emergency personnel vehicle arrives at the intersection. When the fast emergency personnel vehicle reaches the threshold range, it notifies social vehicles to open up an unobstructed channel to avoid affecting normal road traffic. The distance calculation unit is used to calculate the distance value of the emergency personnel vehicle from each intersection on the optimal driving route. Calculate and use the threshold analysis unit to set the distance threshold. Only when the distance value of the emergency personnel vehicle to the intersection is Only when the distance is less than or equal to the set distance threshold will the private vehicles at the intersection be reminded to open up an unobstructed channel. On the one hand, the distance threshold is set by the threshold analysis unit so that it will not affect normal road traffic and shorten the avoidance time of private vehicles as much as possible. On the other hand, it avoids the waiting of rapid emergency personnel vehicles at the intersection, resulting in a waste of the best rescue time for rapid emergency personnel vehicles; the central control unit is used to intelligently control the entire dispatching system to achieve rapid dispatch and adjustment of rapid emergency personnel vehicles.

[0013] A method for rapid emergency vehicle dispatching in a smart city, comprising the following steps:

[0014] S1. Collect ground traffic data to determine the destination of emergency personnel vehicles;

[0015] S2. Based on the destination of the emergency personnel vehicle, use the route planning module to plan the best driving route;

[0016] S3. Determine whether the intersection requires other vehicles to give way based on the optimal driving route;

[0017] S4. When social vehicles need to give way, determine the distance threshold between the rapid emergency personnel vehicle and the intersection;

[0018] S5. Remind other vehicles to give way to the vehicles of the rapid emergency personnel through the voice reminder module.

[0019] According to the above technical solution, in step S1, a map importing unit is used to import a regional map of a certain area, a road intersection marking unit is used to mark each road intersection on the regional map, a plane rectangular coordinate system of the regional map is established by the coordinate system establishment unit, and a coordinate value (X i , Y i ), use the destination input unit to input the emergency rescue destination of the rapid emergency personnel vehicle.

[0020] According to the above technical solution, in step S2, the route planning module is used to plan the optimal driving route of the fast emergency personnel vehicle;

[0021] The route planning module is used to retrieve the historical driving route data of the rapid emergency personnel vehicle from the database. The route planning module retrieves the historical driving route data of several rapid emergency personnel vehicles with the same driving distance and different numbers of intersections, and forms a set of intersection numbers P of the historical driving routes of the rapid emergency personnel vehicles and a set of time length data T of the historical driving routes of the rapid emergency personnel vehicles, where P = {P1, P2, P3, …, P n}, T = {T1, T2, T3, … , T n}, the average time spent at each intersection is calculated according to the following formula Perform the calculation:

[0022] ;

[0023] The route planning module retrieves a number of fast emergency personnel vehicle historical driving data sets with the same number of intersections to form a fast emergency personnel vehicle historical driving route length data set Q and a fast emergency personnel historical driving route duration data set t. , the average time per kilometer is calculated according to the following formula Perform the calculation:

[0024] ;

[0025] The route planning module plans several routes according to the destination input by the destination input unit. Among the several routes planned, the length of the route and the number of intersections are respectively i and p i ;

[0026] Calculate the time t required for each route based on the following i :

[0027] ;

[0028] The route planning module calculates the time it takes for several routes i Sort them and select the route with the shortest driving time as the best driving route for emergency personnel vehicles.

[0029] According to the above technical solution, in step S3, the speed acquisition unit is used to collect the speed V of the fast emergency personnel vehicle, the Beidou positioning unit is used to locate the current position of the fast emergency personnel vehicle, and the coordinate value (x i , y i ), the coordinate system establishment unit assigns the coordinate value of the intersection closest to the emergency personnel vehicle as (x k , y k ), the distance between the current rapid emergency personnel vehicle and the nearest intersection is calculated according to the following formula Perform the calculation:

[0030] ;

[0031] Calculate the time it takes for the current emergency personnel vehicle to reach the intersection using the following formula: ;

[0032] ;

[0033] Importing traffic light information of an intersection closest to emergency personnel using a traffic light importing unit, the traffic light information includes current color information of the traffic light, the current color information is "0" or "1", where "0" indicates that the traffic light is red and "1" indicates that the traffic light is green, current countdown information Z of the traffic light, red light duration M of the traffic light at the intersection, and street light duration N of the traffic light at the intersection;

[0034] When the current color information of the traffic light is "0", that is, the red light, the time range of the green light is calculated according to the following formula:

[0035] ;

[0036] in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light;

[0037] That is or When the social vehicles do not need to give way, or When the traffic is very chaotic, the public vehicles need to give way;

[0038] When the current color information of the traffic light is "1", that is, the light is green, the time range of the green light is calculated according to the following formula:

[0039] ;

[0040] in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light;

[0041] That is When the social vehicles do not need to give way, When the traffic light turns green, private vehicles need to give way.

[0042] According to the above technical solution, in step S4;

[0043] When the current color information of the traffic light is "0", it is red and When the threshold value analysis unit is used to calculate the distance threshold L according to the following formula:

[0044] ;

[0045] When the current color information of the signal light is "1", it is green and When , the threshold analysis unit is used to calculate the distance threshold L according to the following formula;

[0046] .

[0047] The reason why and are used as the critical points is that when the traffic light is about to turn red, private vehicles will stop and wait, while the rapid emergency personnel vehicles will pass through the intersection at this red light. If private vehicles stop in the corresponding lane waiting for the red light at this time, it will affect the driving of the rapid emergency personnel vehicles. Therefore, using and as the critical points to calculate the distance threshold of the voice reminder module, on the one hand, it avoids the long-term avoidance of private vehicles that affects normal road traffic. On the other hand, it can avoid the rapid emergency personnel vehicles waiting in line and wasting precious rescue time. Therefore, choosing and as the critical points to calculate the distance threshold of the reminder is the best.

[0048] According to the above technical solution, in step S5;

[0049] when or When the central control unit is used to control the voice reminder module to issue a voice to remind social vehicles to avoid one of the lanes for the use of rapid emergency personnel vehicles. Indicates the real-time distance between the emergency personnel vehicle and the intersection it is about to pass.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] 1. The present invention utilizes a scene arrangement module to arrange scenes for rapid emergency personnel vehicles, and utilizes a route planning unit to plan the best driving route. During the route planning process, the length of the route and the number of intersections are fully considered, because the length of the route and the number of intersections will affect the time of emergency rescue. Therefore, the route planned according to these conditions will be the best, which will win valuable time for emergency rescue.

[0052] 2. The present invention uses the Beidou positioning unit to determine the position of the rapid emergency personnel vehicle, and determines the traffic light conditions at the intersection where the rapid emergency personnel vehicle is about to pass according to the traffic light import unit, confirms whether to avoid it according to the avoidance confirmation unit, and confirms the time point when the social vehicle needs to avoid it according to the threshold analysis unit. In this way, without affecting the normal traffic on the road as much as possible, it is ensured that social vehicles will open up an unobstructed channel for the rapid emergency personnel vehicle, thereby winning precious time for the rescue of the rapid emergency personnel vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a schematic diagram of the module composition structure of a smart city rapid emergency personnel and vehicle dispatching system of the present invention;

[0054] Figure 2 A schematic diagram of the connection relationship of a smart city rapid emergency personnel vehicle dispatching system according to the present invention;

[0055] Figure 3 The figure is a schematic diagram of the steps of a method for rapid emergency personnel vehicle dispatching in a smart city according to the present invention. DETAILED DESCRIPTION

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0057] like Figures 1-2As shown, the present invention provides the following technical solutions: a smart city rapid emergency personnel vehicle dispatching system, the rapid emergency personnel vehicle dispatching system includes a scene layout module, a vehicle information module, a route planning module, a data processing module and a voice reminder module;

[0058] The scene arrangement module is used to arrange road scenes for the rapid emergency personnel vehicles, the vehicle information module is used to collect information about the rapid emergency personnel vehicles, and the route planning module is used to plan the optimal driving route for the rapid emergency personnel vehicles, so as to shorten the driving time of the emergency personnel vehicles and win valuable rescue time for the emergency personnel. The data processing module is used to calculate and process the data of the vehicle information module and the scene arrangement module. The voice reminder module is a loudspeaker installed on the traffic light at the intersection of urban roads, and reminds social vehicles to avoid a clear passage for the rapid emergency personnel vehicles through voice broadcast. For example, the voice reminder module broadcasts the following information to remind social vehicles to pay attention to avoidance: "The rapid emergency personnel vehicle will enter the right turn lane within 30 seconds, please do not enter the right turn lane";

[0059] The output end of the vehicle information module is electrically connected to the input end of the scene arrangement module, the output end of the scene arrangement module is electrically connected to the input end of the route planning module and the data processing module, and the output end of the data processing module is electrically connected to the input end of the voice reminder module.

[0060] According to the above technical solution, the scene layout module includes a map import unit, an intersection annotation unit, a signal light import unit and a coordinate system import unit;

[0061] The map importing unit is used to import a map of a certain area into the system, and the imported map includes every lane and every intersection on the road, so that the optimal driving route of the rapid emergency personnel vehicle can be planned on the imported map; the intersection marking unit is used to mark each intersection of the regional map imported by the map importing unit, so that the distance between the rapid emergency personnel vehicle and each intersection on the optimal driving route can be determined; the traffic light importing unit is used to import the traffic light information of each intersection, so that the rapid emergency personnel vehicle dispatching system determines whether it is necessary for social vehicles to open up an unobstructed channel; the coordinate system establishing unit is used to establish a plane rectangular coordinate system of the regional map imported by the map importing unit, so as to locate the coordinate value of each point on the regional map.

[0062] According to the above technical solution, the vehicle information module includes a Beidou positioning unit, a speed collection unit and a destination input unit;

[0063] The Beidou positioning unit is used to locate the emergency personnel vehicle in real time, so that the position information of the fast emergency personnel vehicle can be obtained in time, so as to temporarily open up an unobstructed channel for the fast emergency personnel vehicle without affecting normal road traffic; the speed collection unit is used to collect the speed information of the emergency personnel vehicle, and determine whether it is necessary for social vehicles to open up an unobstructed channel based on the speed information and the distance to the intersection; the destination input unit is used to input the destination information of the fast emergency personnel vehicle, and cooperate with the Beidou positioning unit to plan the best driving route for the emergency personnel vehicle.

[0064] According to the above technical solution, the data processing module includes an avoidance confirmation unit, a threshold analysis unit, a distance calculation unit and a central control unit;

[0065] The avoidance confirmation unit determines the color of the traffic light at the intersection when the fast emergency personnel vehicle arrives at the intersection based on the signal light import unit and the speed acquisition unit. When the fast emergency personnel vehicle arrives at the intersection, the traffic light at the intersection is red. At this time, social vehicles need to avoid. When the fast emergency personnel vehicle arrives at the intersection, the traffic light at the intersection is green. At this time, social vehicles do not need to avoid. The threshold analysis unit is used to analyze the distance threshold of the fast emergency personnel vehicle from the intersection when it is determined that the traffic light at the intersection is red when the fast emergency personnel vehicle arrives at the intersection. When the fast emergency personnel vehicle reaches the threshold range, it notifies social vehicles to open up an unobstructed channel to avoid affecting normal road traffic. The distance calculation unit is used to calculate the distance value of the emergency personnel vehicle from each intersection on the optimal driving route. Calculate and use the threshold analysis unit to set the distance threshold. Only when the distance value of the emergency personnel vehicle to the intersection is Only when the distance is less than or equal to the set distance threshold will the private vehicles at the intersection be reminded to open up an unobstructed channel. On the one hand, the distance threshold is set by the threshold analysis unit so that it will not affect normal road traffic and shorten the avoidance time of private vehicles as much as possible. On the other hand, it avoids the waiting of rapid emergency personnel vehicles at the intersection, resulting in a waste of the best rescue time for rapid emergency personnel vehicles; the central control unit is used to intelligently control the entire dispatching system to achieve rapid dispatch and adjustment of rapid emergency personnel vehicles.

[0066] like Figure 3 As shown, a method for rapid emergency vehicle dispatching in a smart city includes the following steps:

[0067] S1. Collect ground traffic data to determine the destination of emergency personnel vehicles;

[0068] S2. Based on the destination of the emergency personnel vehicle, use the route planning module to plan the best driving route;

[0069] S3. Determine whether the intersection requires other vehicles to give way based on the optimal driving route;

[0070] S4. When social vehicles need to give way, determine the distance threshold between the rapid emergency personnel vehicle and the intersection;

[0071] S5. Remind other vehicles to give way to the vehicles of the rapid emergency personnel through the voice reminder module.

[0072] According to the above technical solution, in step S1, a map importing unit is used to import a regional map of a certain area, a road intersection marking unit is used to mark each road intersection on the regional map, a plane rectangular coordinate system of the regional map is established by the coordinate system establishment unit, and a coordinate value (X i , Y i ), use the destination input unit to input the emergency rescue destination of the rapid emergency personnel vehicle.

[0073] According to the above technical solution, in step S2, the route planning module is used to plan the optimal driving route of the fast emergency personnel vehicle;

[0074] The route planning module is used to retrieve the historical driving route data of the rapid emergency personnel vehicle from the database. The route planning module retrieves the historical driving route data of several rapid emergency personnel vehicles with the same driving distance and different numbers of intersections, and forms a set of intersection numbers P of the historical driving routes of the rapid emergency personnel vehicles and a set of time length data T of the historical driving routes of the rapid emergency personnel vehicles, where P = {P1, P2, P3, ..., P n}, T={T1, T2, T3,…, T n}, the average time spent at each intersection is calculated according to the following formula Perform the calculation:

[0075] ;

[0076] The route planning module retrieves a number of fast emergency personnel vehicle historical driving data sets with the same number of intersections to form a fast emergency personnel vehicle historical driving route length data set Q and a fast emergency personnel historical driving route duration data set t. The average time per kilometer is calculated using the following formula Perform the calculation:

[0077] ;

[0078] The route planning module plans several routes according to the destination input by the destination input unit. Among the several routes planned, the length of the route and the number of intersections are respectively i and p i ;

[0079] Calculate the time t required for each route based on the following i :

[0080] ;

[0081] The time it takes for the route planning module to calculate several routes Sort them and select the route with the shortest driving time as the best driving route for emergency personnel vehicles.

[0082] According to the above technical solution, in step S3, the speed acquisition unit is used to collect the speed V of the fast emergency personnel vehicle, the Beidou positioning unit is used to locate the current position of the fast emergency personnel vehicle, and the coordinate value (x i , y i ), the coordinate system establishment unit assigns the coordinate value of the intersection closest to the emergency personnel vehicle as (x k , y k ), the distance between the current rapid emergency personnel vehicle and the nearest intersection is calculated according to the following formula Perform the calculation:

[0083] ;

[0084] Calculate the time it takes for the current emergency personnel vehicle to reach the intersection using the following formula: ;

[0085] ;

[0086] Importing traffic light information of an intersection closest to emergency personnel using a traffic light importing unit, the traffic light information includes current color information of the traffic light, the current color information is "0" or "1", where "0" indicates that the traffic light is red and "1" indicates that the traffic light is green, current countdown information Z of the traffic light, red light duration M of the traffic light at the intersection, and street light duration N of the traffic light at the intersection;

[0087] When the current color information of the traffic light is "0", that is, the red light, the time range of the green light is calculated according to the following formula:

[0088] ;

[0089] in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light;

[0090] That is or When the social vehicles do not need to give way, or When the traffic is very chaotic, the public vehicles need to give way;

[0091] When the current color information of the traffic light is "1", that is, the light is green, the time range of the green light is calculated according to the following formula:

[0092] ;

[0093] in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light;

[0094] That is When the social vehicles do not need to give way, When the traffic light turns green, private vehicles need to give way.

[0095] According to the above technical solution, in step S4;

[0096] When the current color information of the traffic light is "0", it is red and When the threshold value analysis unit is used to calculate the distance threshold L according to the following formula:

[0097] ;

[0098] When the current color information of the signal light is "1", it is green and When , the threshold analysis unit is used to calculate the distance threshold L according to the following formula;

[0099] .

[0100] The reason why and are used as the critical points is that when the traffic light is about to turn red, private vehicles will stop and wait, while the rapid emergency personnel vehicles will pass through the intersection at this red light. If private vehicles stop in the corresponding lane waiting for the red light at this time, it will affect the driving of the rapid emergency personnel vehicles. Therefore, using and as the critical points to calculate the distance threshold of the voice reminder module, on the one hand, it avoids the long-term avoidance of private vehicles that affects normal road traffic. On the other hand, it can avoid the rapid emergency personnel vehicles waiting in line and wasting precious rescue time. Therefore, choosing and as the critical points to calculate the distance threshold of the reminder is the best.

[0101] According to the above technical solution, in step S5;

[0102] when or When the central control unit is used to control the voice reminder module to issue a voice to remind social vehicles to avoid one of the lanes for the use of rapid emergency personnel vehicles. Indicates the real-time distance between the emergency personnel vehicle and the intersection it is about to pass.

[0103] Example 1:

[0104] The route planning module is used to retrieve the historical driving route data of the rapid emergency personnel vehicle from the database. The route planning module retrieves the historical driving route data of several rapid emergency personnel vehicles with the same driving distance and different numbers of intersections to form a set of intersection numbers P of the historical driving routes of the rapid emergency personnel vehicles and a set of time data T of the historical driving routes of the rapid emergency personnel vehicles, where P = {T1, T2, T3, T4} = {12, 8, 15, 6}, T = {T1, T2, T3, T4} = {21, 15, 25, 14}, and the average time spent at each intersection is calculated according to the following formula Perform the calculation:

[0105] ;

[0106] The route planning module retrieves a number of historical travel data sets of fast emergency personnel vehicles with the same number of intersections to form a historical travel route length data set Q of fast emergency personnel vehicles and a time length data set t of historical travel routes of fast emergency personnel, where Q = {Q1, Q2, Q3, Q4} = {15, 18, 17, 21}, and t = {t1, t2, t3, t4} = {21, 23, 22, 28}. The average time per kilometer is calculated according to the following formula: Perform the calculation:

[0107] ;

[0108] The route planning module plans a plurality of routes according to the destination input by the destination input unit, wherein the lengths and the numbers of intersections of the planned routes are q1=12, p1=6, q2=15, p2=5, q3=10, p3=8 respectively;

[0109] Calculate the time t1, t2, and t3 required for each route based on the following:

[0110]

[0111] ;

[0112] The route planning module sorts the durations t1, t2 and t3 of the routes and selects the first route as the optimal route for the emergency personnel vehicle.

[0113] Example 2:

[0114] The speed acquisition unit is used to collect the speed V of the rapid emergency personnel vehicle and obtain V=15m / s. The Beidou positioning unit is used to locate the current position of the rapid emergency personnel vehicle and assign its coordinate value (x i , y i ) = (120, 120), the coordinate system establishment unit assigns the coordinate value of the intersection closest to the emergency personnel vehicle to = (120,560), the distance between the current rapid emergency personnel vehicle and the nearest intersection is calculated according to the following formula Perform the calculation:

[0115] ;

[0116] Calculate the time it takes for the current emergency personnel vehicle to reach the intersection using the following formula: ;

[0117] ;

[0118] The traffic light information of the intersection closest to the emergency personnel is imported using the traffic light import unit, wherein the current color information is "0", where "0" indicates that the traffic light is red, the current countdown information of the traffic light is Z=15s, the red light duration of the traffic light at the intersection is M=40s, and the street light duration of the traffic light at the intersection is N=30s;

[0119] When the current color information of the traffic light is "0", that is, the red light, the time range of the green light is calculated according to the following formula:

[0120] ;

[0121] in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light;

[0122] , private vehicles do not need to give way.

[0123] Example 3:

[0124] The speed acquisition unit is used to collect the speed V of the rapid emergency personnel vehicle, and V=10m / s is obtained. The Beidou positioning unit is used to locate the current position of the rapid emergency personnel vehicle and assign its coordinate value in the plane rectangular coordinate system established by the coordinate system establishment unit. The coordinate system establishment unit assigns the coordinate value of the intersection closest to the emergency personnel vehicle to , the distance between the current rapid emergency personnel vehicle and the nearest intersection is calculated according to the following formula: Perform the calculation:

[0125] ;

[0126] Calculate the time it takes for the current emergency personnel vehicle to reach the intersection using the following formula: ;

[0127] ;

[0128] The traffic light information of the intersection closest to the emergency personnel is imported using the traffic light import unit, wherein the current color information is "0", where "0" indicates that the traffic light is red, the current countdown information of the traffic light is Z=15s, the red light duration of the traffic light at the intersection is M=40s, and the street light duration of the traffic light at the intersection is N=30s;

[0129] When the current color information of the traffic light is "0", that is, the red light, the time range of the green light is calculated according to the following formula:

[0130] ;

[0131] in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light;

[0132] or , social vehicles need to give way;

[0133] The current color information of the traffic light is "0", which means it is red and , use the threshold analysis unit to calculate the distance threshold L according to the following formula:

[0134] ;

[0135] The central control unit is used to control the voice reminder module to issue a voice to remind social vehicles to avoid one of the straight lanes for the use of rapid emergency personnel vehicles. Indicates the real-time distance between the emergency personnel vehicle and the intersection it is about to pass.

[0136] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A smart city rapid emergency personnel and vehicle dispatch system, characterized by: The rapid emergency personnel vehicle dispatch system includes a scene layout module, a vehicle information module, a route planning module, a data processing module and a voice reminder module; The scene arrangement module is used to arrange road scenes for the rapid emergency personnel vehicles, the vehicle information module is used to collect information about the rapid emergency personnel vehicles, the route planning module is used to plan the optimal driving route for the rapid emergency personnel vehicles, the data processing module is used to calculate and process the data from the vehicle information module and the scene arrangement module, and the voice reminder module is a loudspeaker installed on the traffic lights at the intersections of urban roads, which reminds other vehicles to make way for the rapid emergency personnel vehicles through voice broadcasts. The output end of the vehicle information module is electrically connected to the input end of the scene arrangement module, the output end of the scene arrangement module is electrically connected to the input end of the route planning module and the data processing module, and the output end of the data processing module is electrically connected to the input end of the voice reminder module; The dispatching method of the rapid emergency personnel vehicle dispatching system comprises the following steps: S1. Collect ground traffic data to determine the destination of emergency personnel vehicles; S2. Based on the destination of the emergency personnel vehicle, use the route planning module to plan the best driving route; S3. Determine whether the intersection requires other vehicles to give way based on the optimal driving route; S4. When social vehicles need to give way, determine the distance threshold between the rapid emergency personnel vehicle and the intersection; S5, using a voice reminder module to remind other vehicles to give way to the vehicles of the emergency personnel; In step S1, a map import unit is used to import a regional map of a certain area, a road intersection marking unit is used to mark each road intersection on the regional map, a plane rectangular coordinate system of the regional map is established by a coordinate system establishment unit, and a coordinate value (x i , y i ), using the destination input unit to input the emergency rescue destination of the rapid emergency personnel vehicle; In step S2, the route planning module is used to plan the optimal driving route of the emergency personnel vehicle; The route planning module is used to retrieve the historical driving route data of the rapid emergency personnel vehicle from the database. The route planning module retrieves the historical driving route data of several rapid emergency personnel vehicles with the same driving distance and different number of intersections, and forms a set of intersection numbers P of the historical driving routes of the rapid emergency personnel vehicles and a set of time length data T of the historical driving routes of the rapid emergency personnel vehicles, where P = {P1, P2, P3, ..., P n }, T={T1, T2, T3,…, T n }, the average time spent at each intersection is calculated according to the following formula Perform the calculation: ； The route planning module retrieves a number of historical travel data sets of rapid emergency personnel vehicles with the same number of intersections to form a historical travel route length data set Q of rapid emergency personnel vehicles and a time length data set t of historical travel routes of rapid emergency personnel. , the average time per kilometer is calculated according to the following formula Perform the calculation: ； The route planning module plans several routes according to the destination input by the destination input unit. Among the several planned routes, the length and number of intersections are i and p i ; Calculate the time t required for each route based on the following i : ； The time t that the route planning module takes for several routes i Sort and select the route with the shortest driving time as the best driving route for emergency personnel vehicles; In step S3, the speed acquisition unit is used to acquire the speed V of the rapid emergency personnel vehicle, and the Beidou positioning unit is used to locate the current position of the rapid emergency personnel vehicle, and the coordinate value (x i , y i ), the coordinate value assigned by the coordinate system establishment unit to the intersection closest to the emergency personnel vehicle is (x k , y k ), the distance between the current rapid emergency personnel vehicle and the nearest intersection is calculated according to the following formula Perform the calculation: ； Calculate the time it takes for the current emergency personnel vehicle to reach the intersection using the following formula: ; ； The traffic light import unit imports traffic light information of an intersection closest to the emergency personnel. The traffic light information includes the current color of the traffic light, which is "0" or "1" (where "0" indicates the traffic light is red and "1" indicates the traffic light is green), the current countdown time in seconds of the traffic light, Z, the red light duration of the traffic light at the intersection, M, and the green light duration of the traffic light at the intersection, N. When the current color information of the traffic light is "0", that is, the red light, the time range of the green light is calculated according to the following formula: ； in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light; That is or When the social vehicles do not need to give way, or When the traffic is very chaotic, the public vehicles need to give way; When the current color information of the traffic light is "1", that is, the light is green, the time range of the green light is calculated according to the following formula: ； in, Indicates the minimum duration of the first green light. Indicates the maximum duration of the first green light. Indicates the minimum duration of the second green light. Indicates the maximum duration of the second green light; That is When the social vehicles do not need to give way, When the traffic light turns green, private vehicles need to give way.

2. A smart city rapid emergency personnel vehicle dispatch system according to claim 1, characterized in that: In step S4; When the current color information of the traffic light is "0", it is red and When the threshold value analysis unit is used to calculate the distance threshold L according to the following formula: ； When the current color information of the signal light is "1", it is a green light and When , the threshold analysis unit is used to calculate the distance threshold L according to the following formula; 。 3. The smart city rapid emergency personnel vehicle dispatch system according to claim 2, characterized in that: In step S5; when or When the central control unit is used to control the voice reminder module to issue a voice to remind social vehicles to avoid one of the lanes for the use of rapid emergency personnel vehicles. Indicates the real-time distance between the emergency personnel vehicle and the intersection it is about to pass.

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