Emergency avoidance system and method in emergency vehicle driving process

Abstract

The invention relates to the technical field of emergency avoidance of emergency vehicles, and discloses an emergency avoidance system and method in the driving process of an emergency vehicle. According to the system and the method, rescue information data are transmitted in a rescue area with a rescue vehicle as the center and a radius of 1500 m, the rescue information data comprise a driving route and a passing road, position information of social vehicles is monitored, whether the social vehicles enter the area range or not is judged, and when the social vehicles enter the area range, the social vehicles enter the area range. The method comprises the following steps: automatically acquiring rescue information data, verifying the rescue information data, carrying out data analysis, sending the rescue information data to a central control display uploading module after analysis, uploading the rescue information data to a vehicle central control display screen, and stopping acquiring the rescue information data and central control display by the social vehicle when the social vehicle drives out of the area range. The rescue information is sent by broadcasting, and the social vehicles receive the rescue information, so that the social vehicles are reminded to predict in advance and prepare for avoiding, and the timeliness of special vehicle rescue is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency vehicle emergency avoidance, and in particular to an emergency vehicle emergency avoidance system and method during driving. Background Art

[0002] Rescue vehicles are vehicles that protect the safety of people's lives and property. In emergency and relief work, every second counts. However, during the rescue, due to the relatively simple way of reminding social vehicles, only alarms and horns, social vehicles are not able to give way in time, or there are many social vehicles on a certain section of road, and it is impossible to predict in advance that a rescue vehicle is about to pass, and there is not enough time to avoid it, which delays the passage of the rescue vehicle.

[0003] The existing technology is to remind other vehicles to avoid by means of the alarm device on the rescue vehicle and the horn of the rescue vehicle driver. The broadcast range of this solution is limited. Only when the rescue vehicle drives around the other vehicles and the drivers of the other vehicles hear the alarm or horn information, they know that they need to avoid. If there is not enough space to avoid at this time, it is easy to block the rescue vehicle and delay the rescue time. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an emergency avoidance system and method for emergency vehicles during driving. Rescue information data is transmitted in a rescue area with a radius of 1500 meters as the center of the rescue vehicle. The rescue information data includes the driving route and the road passed, and the rescue vehicle position Jcwz and the traffic volume Dcll of the road passed are calculated. The position information of social vehicles is monitored, and the actual distance Sjcl between the social vehicle and the rescue vehicle is calculated to determine whether the social vehicle enters the above-mentioned area. When the social vehicle enters the above-mentioned area, the rescue information data is automatically obtained, the above-mentioned rescue information data is verified and the data is analyzed. After the analysis, the rescue information data is sent to the central control display upload module, the rescue information data is uploaded to the vehicle central control display screen, and the information update frequency Xgpl is calculated. When the social vehicle leaves the above-mentioned area, the social vehicle closes the acquisition of rescue information data and the central control display. The system has the advantages of sending rescue information by broadcasting and social vehicles receiving rescue information, reminding social vehicles to predict in advance and make avoidance preparations, thereby improving the timeliness of special vehicle rescue and solving the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an emergency avoidance system for emergency vehicles during driving, comprising a rescue information publishing module, a rescue information acquisition module, a rescue information parsing module, a central control display upload module and a rescue information closing module;

[0008] The rescue information release module transmits rescue information data in a rescue area with a radius of 1500 meters centered on the rescue vehicle. The rescue information data includes the driving route and the passing road, and calculates the rescue vehicle position Jcwz and the traffic volume Dcll of the passing road;

[0009] The rescue information acquisition module monitors the location information of social vehicles, and determines whether social vehicles enter the above-mentioned area by calculating the actual distance Sjcl between social vehicles and rescue vehicles. When social vehicles enter the above-mentioned area, rescue information data is automatically acquired;

[0010] The rescue information analysis module is used to verify the rescue information data and perform data analysis, and after analysis, send the rescue information data to the central control display upload module;

[0011] The central control display upload module is used to upload rescue information data to the vehicle central control display screen and calculate the information update frequency Xgpl;

[0012] The rescue information closing module closes the rescue information data and the central control display of the private vehicle when the private vehicle leaves the above-mentioned area.

[0013] Preferably, the formula for calculating the rescue vehicle position Jcwz by the rescue information publishing module is as follows:

[0014] JbXj x =R*lng*cos(lat)

[0015] JbXj y =R*lat

[0016] In the formula, Jcwz x , y Represents the position of the rescue vehicle in the plane coordinate system, R represents the radius of the earth, lat represents the latitude of the rescue vehicle, and lng represents the longitude of the rescue vehicle.

[0017] Preferably, the formula for calculating the traffic flow Dc11 of the road by the rescue information release module is as follows:

[0018]

[0019] In the formula, Dcll represents the traffic volume passing through the road, Tdsl represents the number of vehicles passing through in the time interval T, and T represents the time interval.

[0020] Preferably, the rescue information acquisition module calculates the actual distance Sjcl between the private vehicle and the rescue vehicle, and the formula is as follows:

[0021]

[0022] In the formula, Sjcl represents the actual distance between the social vehicle and the rescue vehicle, R represents the radius of the earth, lat1 and lat2 represent the longitude and latitude of the rescue vehicle, and lng1 and lng2 represent the longitude and latitude of the social vehicle.

[0023] Preferably, the conditions for the rescue information acquisition module to determine whether a private vehicle has entered the rescue area are as follows:

[0024] When the actual distance Sjcl between the private vehicle and the rescue vehicle is less than or equal to 100 meters, it means that the private vehicle is in the area. When the actual distance Sjcl between the private vehicle and the rescue vehicle is greater than 100 meters, it means that the private vehicle is not in the area.

[0025] Preferably, the formula for verifying the rescue information data by the rescue information parsing module is as follows:

[0026]

[0027] In the formula, CRC(n) represents the CRC check value, which is used for data verification, data[i] represents the value of the i-th byte in the data to be verified, n represents the total number of bytes of the data, m represents the base used for modulus, which is 2 to the first power, and i represents the counting subscript.

[0028] Preferably, the formula for parsing rescue information data by the rescue information parsing module is as follows:

[0029] (Xslx,jgdl)=ParseRescueInfo(D)

[0030] In the formula, (Xslx, jgdl) represents the parsed driving route and the set of roads passed, ParseRescueInfo represents the data parsing function, and D represents the original rescue information data.

[0031] Preferably, the formula for calculating the information update frequency Xgpl by the central control display upload module is as follows:

[0032]

[0033] In the formula, Xgpl represents the information update frequency, Gxcs represents the number of updates, and St represents the time interval.

[0034] Preferably, when a private vehicle leaves the above-mentioned area, the rescue information closing module sends a command to the vehicle's internal system through the on-board computing unit to stop receiving rescue information data, and feeds back the status of the closing operation to the driver through the CAN bus.

[0035] An emergency avoidance method for an emergency vehicle during driving, comprising the following steps:

[0036] S1. Rescue information data is transmitted in a rescue area with a radius of 1500 meters centered on the rescue vehicle. The rescue information data includes the driving route and the passing road, and the rescue vehicle position Jcwz and the traffic flow Dclk of the passing road are calculated;

[0037] S2. Monitor the location information of social vehicles, and determine whether social vehicles have entered the above-mentioned area by calculating the actual distance Sjcl between social vehicles and rescue vehicles. When social vehicles enter the above-mentioned area, automatically obtain rescue information data;

[0038] S3, verifying the rescue information data and performing data analysis, and sending the rescue information data to the central control display upload module after analysis;

[0039] S4, upload rescue information data to the vehicle central control display screen, and calculate the information update frequency Xgpl;

[0040] S5. When a private vehicle leaves the above-mentioned area, the private vehicle will shut down the rescue information data and central control display.

[0041] Compared with the prior art, the present invention provides an emergency avoidance system and method for emergency vehicles during driving, which has the following beneficial effects:

[0042] The present invention transmits rescue information data in a rescue area with a radius of 1500 meters as the rescue vehicle as the center, the rescue information data includes the driving route and the road passed, and calculates the rescue vehicle position Jcwz and the traffic volume Dcll of the road passed, monitors the position information of social vehicles, and determines whether the social vehicle enters the above-mentioned area by calculating the actual distance Sjcl between the social vehicle and the rescue vehicle. When the social vehicle enters the above-mentioned area, the rescue information data is automatically acquired, the above-mentioned rescue information data is verified and the data is analyzed. After the analysis, the rescue information data is sent to the central control display upload module, the rescue information data is uploaded to the vehicle central control display screen, and the information update frequency Xgpl is calculated. When the social vehicle goes out of the above-mentioned area, the social vehicle closes the acquisition of rescue information data and the central control display, uses broadcast to send rescue information, and the social vehicle receives the rescue information in a way that the social vehicle is reminded to predict in advance and make avoidance preparations, thereby improving the timeliness of special vehicle rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the system flow of the present invention;

[0044] Figure 2 It is a schematic diagram of the steps of the method of the present invention. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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.

[0046] In view of the problem that the current method of reminding private vehicles to avoid by using the alarm device on the rescue vehicle and the rescue vehicle driver's horn is limited in broadcast range and easily delays the rescue time, an emergency avoidance system for emergency vehicles during driving is proposed.

[0047] See also Figure 1 ,The system includes a rescue information publishing module, a rescue information acquisition module, a rescue information parsing module, a central control display upload module and a rescue information closing module;

[0048] The core function of the rescue information release module is to transmit rescue information data to surrounding vehicles and related users in real time within the rescue area with a radius of 1,500 meters centered on the rescue vehicle, and use the geographic information system to establish a circular geographic fence to monitor the movement within the area. The rescue information release module will obtain road information related to the rescue vehicle's driving route through the integrated map service API, and combine the vehicle's navigation system to draw the current driving route, passing roads and their corresponding traffic conditions. At the same time, the rescue information release module will collect real-time traffic flow data passing through the road through on-board sensors and Internet of Things technology. These data can be uploaded to the cloud through the communication network LoRaWAN for analysis to calculate the road's traffic capacity and traffic congestion. The analysis results will be promptly integrated into the rescue information data, and then through the wireless communication technology V2X, notifications will be sent to other vehicles, pedestrians and related emergency service personnel in the rescue area to ensure that all relevant parties can obtain rescue driving routes and road status information in real time. Among them, the calculation formula for the rescue vehicle position is as follows:

[0049] JbXj x =R*lng*cos(lat)

[0050] JbXj y =R*lat

[0051] In the formula, Jcwz x , yRepresents the position of the rescue vehicle in the plane coordinate system, R represents the radius of the earth, lat represents the latitude of the rescue vehicle, and lng represents the longitude of the rescue vehicle. By accurately calculating the real-time position of the rescue vehicle, the system can make decisions quickly, provide the best driving route for the rescue vehicle, and reduce the time to arrive at the accident scene. And accurate location information helps ensure the safety of the rescue vehicle while driving and avoid collisions with other vehicles.

[0052] Real-time traffic flow data shows the road's capacity and traffic congestion, which can effectively guide emergency vehicles to choose alternative routes, thereby reducing delays and ensuring timely arrival at the accident scene.

[0053] The formula for calculating the traffic volume on the road is as follows:

[0054]

[0055] In the formula, Dcll represents the traffic volume on the road, Tdsl represents the number of vehicles passing through in the T time interval, and T represents the time interval. Understanding the traffic volume on a specific road can help rescue vehicles choose relatively unobstructed routes, avoid peak hours or congested sections, and improve traffic efficiency.

[0056] The rescue information acquisition module is used to monitor the location information of social vehicles. By calculating the actual distance Sjcl between social vehicles and rescue vehicles, it determines whether social vehicles have entered the above-mentioned area. When social vehicles enter the above-mentioned area, the system will automatically trigger a series of response mechanisms. First, the system will instantly push relevant rescue information data to the monitored social vehicles through the wireless communication network. The content includes the current location of the rescue vehicle, the scheduled driving route, the traffic conditions of the passing road, the estimated arrival time, etc. This process relies on the general Internet of Things protocol MQTT to ensure low-latency data transmission. In addition, the module can also integrate traffic flow analysis and dynamic information update services to adjust the pushed rescue information in real time to provide social vehicles with the latest avoidance guidance.

[0057] The calculation formula for the actual distance between the social vehicle and the rescue vehicle is as follows:

[0058]

[0059] Accurately calculate the distance between the social vehicle and the rescue vehicle, so that the system can send avoidance instructions to the social vehicle in time, instruct it to safely stop or change lanes, and ensure the passage of the rescue vehicle. In the formula, Sjcl represents the actual distance between the social vehicle and the rescue vehicle, R represents the radius of the earth, lat1 and lat2 represent the longitude and latitude of the rescue vehicle, and lng1 and lng2 represent the longitude and latitude of the social vehicle. Through distance calculation, the response speed of social vehicles to rescue vehicles is improved, thereby optimizing road use efficiency and reducing traffic chaos.

[0060] The conditions for judging whether a private vehicle has entered the rescue area are as follows:

[0061] When the actual distance Sjcl between the private vehicle and the rescue vehicle is less than or equal to 1500 meters, it means that the private vehicle is in the rescue area; when the actual distance Sjcl between the private vehicle and the rescue vehicle is greater than 1500 meters, it means that the private vehicle is not in the rescue area;

[0062] When a private vehicle enters the rescue area and obtains rescue information data, the rescue information parsing module will verify and parse the rescue information data. Verifying the collected data can ensure the accuracy and consistency of the information and reduce decision-making errors caused by data errors. The data verification formula is as follows:

[0063]

[0064] In the formula, CRC(n) represents the CRC check value, which is used for data verification, data[i] represents the value of the i-th byte in the verified data, n represents the total number of bytes of the data, m represents the base for modulo, which is 2 to the first power, and i represents the counting subscript. The verification mechanism can promptly detect improper data or potential security threats in the system, thus improving the overall security and stability of the system.

[0065] Through data analysis, useful information is extracted to lay the foundation for subsequent trend analysis and pattern recognition, helping to improve rescue and traffic management strategies. The data analysis formula is as follows:

[0066] (Xslx,jgdl)=ParseRescueInfo(D)

[0067] In the formula, (Xslx,jgdl) represents the parsed driving route and the set of roads passed, ParseRescueInfo represents the data parsing function, and D represents the original rescue information data. The parsed information can be used in various forms such as graphics and notifications to allow personnel at different levels to quickly obtain important information, thereby improving the efficiency of emergency response.

[0068] The central control display upload module is used to upload rescue information data to the vehicle central control display screen and calculate the information update frequency Xgpl. The formula is as follows:

[0069]

[0070] In the formula, Xgpl represents the information update frequency, Gxcs represents the number of updates, and St represents the time interval. Determining the appropriate information update frequency can ensure that the system obtains the latest data in real time and supports accurate decision-making and response. The update frequency can be dynamically adjusted according to actual needs. The frequency can be increased during high traffic periods and reduced during low traffic periods to optimize system resource allocation;

[0071] After the rescue information closing module detects that a private vehicle has left the preset rescue area, the emergency avoidance system will automatically trigger a geo-fence release event, and use the on-board GPS module and signal receiver to update the vehicle's location data in real time to ensure its accuracy. The emergency avoidance system will send instructions to the central control system through the on-board computing platform to automatically close the data connection for obtaining rescue information. Specifically, the 5G wireless communication protocol is used to terminate the connection with the rescue information service platform to prevent additional data transmission and reduce the system burden. At the same time, in order to protect the user's privacy and data protection, the emergency avoidance system will immediately stop displaying rescue-related information, including the location information, driving route and other dynamic traffic data of the rescue vehicle, to ensure that the central control display interface of the private vehicle is no longer disturbed by external rescue information in subsequent operations. In addition, the emergency avoidance system uses edge computing technology to quickly process the status update of leaving the area locally, reduce delays, and ensure stability. When the private vehicle returns to the area next time, the rescue information acquisition module will be reactivated and automatically update the relevant data to optimize the user experience and safety.

[0072] See also Figure 2 , an emergency avoidance method for an emergency vehicle during driving, comprising the following steps:

[0073] S1, transmitting rescue information data in a rescue area with a radius of 1500 meters centered on the rescue vehicle. The rescue information data includes the driving route and the passing road, and calculates the rescue vehicle position Jcwz and the traffic volume Dcll of the passing road;

[0074] S2. Monitor the location information of social vehicles, and determine whether social vehicles have entered the above-mentioned area by calculating the actual distance Sjcl between social vehicles and rescue vehicles. When social vehicles enter the above-mentioned area, automatically obtain rescue information data;

[0075] S3, verifying the rescue information data and performing data analysis, and sending the rescue information data to the central control display upload module after analysis;

[0076] S4, upload rescue information data to the vehicle central control display screen, and calculate the information update frequency Xgpl;

[0077] S5. When a private vehicle leaves the above-mentioned area, the private vehicle will shut down the rescue information data and central control display.

[0078] Through the combination of the above-mentioned system and method, rescue information is sent by broadcasting, and private vehicles receive the rescue information, which reminds private vehicles to predict and prepare for avoidance in advance, thereby improving the timeliness of special vehicle rescue.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency avoidance system for emergency vehicles during driving, characterized in that: It includes rescue information release module, rescue information acquisition module, rescue information analysis module, central control display upload module and rescue information closing module; The rescue information release module transmits rescue information data in a rescue area with a radius of 1500 meters centered on the rescue vehicle. The rescue information data includes the driving route and the passing road, and calculates the position Jcwz of the rescue vehicle and the traffic flow Dcll of the passing road; The rescue information acquisition module is used to monitor the location information of the social vehicle, and to determine whether the social vehicle has entered the rescue area by calculating the actual distance Sjcl between the social vehicle and the rescue vehicle. When the social vehicle enters the rescue area, the rescue information acquisition module automatically acquires the rescue information data; The rescue information parsing module is used to verify and parse the rescue information data, and after parsing, send the rescue information data to the central control display upload module; The central control display upload module is used to upload rescue information data to the vehicle central control display screen and calculate the update frequency Xgpl of the rescue information; The rescue information closing module controls the social vehicle to close the acquisition of rescue information data and the central control display when the social vehicle drives out of the above-mentioned rescue area.

2. The emergency avoidance system for emergency vehicles during driving according to claim 1, characterized in that: The formula for calculating the rescue vehicle position Jcwz by the rescue information publishing module is as follows: Jcwz x =R*lng*cos(lat) Jcwz y =R*years In the formula, Jcwz x , y They respectively represent the position of the rescue vehicle in the plane coordinate system, R represents the radius of the earth, lat represents the latitude of the rescue vehicle, and lng represents the longitude of the rescue vehicle.

3. The emergency avoidance system for emergency vehicles during driving according to claim 2, characterized in that: The formula for calculating the traffic flow Dc11 of the road by the rescue information release module is as follows: In the formula, Dcll represents the traffic volume passing through the road, Tdsl represents the number of vehicles passing through in the time interval T, and T represents the time interval.

4. The emergency avoidance system for emergency vehicles during driving according to claim 3, characterized in that: The rescue information acquisition module calculates the actual distance Sjcl between the social vehicle and the rescue vehicle, and the formula is as follows: In the formula, Sjcl represents the actual distance between the social vehicle and the rescue vehicle, R represents the radius of the earth, lat1 and lat2 represent the longitude and latitude of the rescue vehicle, and lng1 and lng2 represent the longitude and latitude of the social vehicle.

5. The emergency avoidance system for emergency vehicles during driving according to claim 4, characterized in that: The conditions for the rescue information acquisition module to determine whether a private vehicle has entered the rescue area are as follows: When the actual distance Sjcl between the private vehicle and the rescue vehicle is less than or equal to 100 meters, it means that the private vehicle is in the rescue area. When the actual distance Sjcl between the private vehicle and the rescue vehicle is greater than 100 meters, it means that the private vehicle is not in the rescue area.

6. The emergency avoidance system for emergency vehicles during driving according to claim 5, characterized in that: The formula for verifying rescue information data by the rescue information parsing module is as follows: In the formula, CRC(n) represents the CRC check value used for data verification, data[i] represents the value of the i-th byte in the data to be verified, n represents the total number of bytes of the data, m represents the base used for modulus, m is a power of 2, and i represents the counting subscript.

7. The emergency avoidance system for emergency vehicles during driving according to claim 6, characterized in that: The formula for rescuing information data parsed by the rescue information parsing module is as follows: (Xslx,jgdl)=ParseRescueInfo(D) In the formula, (Xslx, jgdl) represents the parsed driving route and the set of roads passed, ParseRescueInfo represents the data parsing function, and D represents the original rescue information data.

8. The emergency avoidance system for emergency vehicles during driving according to claim 7, characterized in that: The formula for calculating the update frequency Xgpl of the rescue information by the central control display upload module is as follows: In the formula, Xgpl represents the information update frequency, Gxcs represents the number of updates, and St represents the time interval.

9. The emergency avoidance system for emergency vehicles during driving according to claim 8, characterized in that: When a private vehicle leaves the above-mentioned area, the rescue information closing module sends instructions to the internal system of the rescue vehicle through the on-board computing unit to stop receiving rescue information data, and feeds back the status of the closing operation to the driver through the CAN bus.

10. An emergency avoidance method for an emergency vehicle during driving, characterized in that: The following steps are involved: S1, transmitting rescue information data in a rescue area with a radius of 1500 meters, with the rescue vehicle as the center. The rescue information data includes the driving route and the road passed, and calculates the rescue vehicle position Jcwz and the traffic volume Dcll of the road passed; S2. Monitor the location information of the private vehicle, calculate the actual distance Sjcl between the private vehicle and the rescue vehicle, and compare it with the radius of the rescue area to determine whether the private vehicle has entered the above rescue area. When Sjcl is less than or equal to 1500 meters, the private vehicle has entered the above area, and the rescue vehicle automatically obtains rescue information data; S3, verifying the rescue information data and performing data analysis, and sending the rescue information data to the central control display upload module after analysis; S4, upload rescue information data to the vehicle central control display screen, and calculate the information update frequency Xgpl; S5. When Sjcl is greater than 1500 meters, social vehicles drive out of the above-mentioned area and close the rescue information data and central control display.

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