A system and method for monitoring automobile power battery temperature in a transport ship cabin

Abstract

The present invention discloses a system and method for monitoring the temperature of automobile power batteries in the hold of a transport ship. The system comprises a monitoring host computer system and multiple intelligent vehicles. In the monitoring host computer system, a two-dimensional cabin mapping module creates an initial map and initial obstacles based on the distribution of automobile berths within the car transport ship; a path planning module plans the driving paths of the intelligent vehicles; an intelligent vehicle scheduling module dispatches the intelligent vehicles to various waypoints; the intelligent vehicles monitor the temperature of new energy vehicle power battery packs and scan berth details using a laser radar; a radar information re-mapping module of the intelligent vehicles corrects and reconstructs the berth details on the initial map; and an in-cabin automobile power battery temperature monitoring and display module locates and displays the temperature of the new energy vehicle power battery packs at each berth. This invention enables efficient, intuitive, and comprehensive safety monitoring of new energy vehicle power battery packs loaded in the hold of a car transport ship.

Description

Technical Field

[0001] The present invention relates to the technical field of battery temperature detection, and in particular to a system and method for monitoring the temperature of an automobile power battery in a cabin of a transport ship. Background Art

[0002] As an important mode of import and export for new energy vehicles, how to ensure the safety of vehicles during transportation has become a primary issue that needs to be addressed urgently. The power battery packs of new energy vehicles are the source of fire during transportation, so safety monitoring of them is of paramount importance.

[0003] Most current car carriers are designed for transporting traditional fuel-powered vehicles and lack the necessary monitoring capabilities for the power battery packs of new energy vehicles. A small number of these vessels, specifically designed for transporting new energy vehicles, also require specialized monitoring equipment, such as infrared thermal imaging sensors and smoke detectors. However, these sensors are typically mounted on the top of the ship, with limited visibility, making it difficult to quickly and intuitively monitor the power battery packs located within the chassis of new energy vehicles. Furthermore, manual security patrols are difficult to conduct within the crowded cabins of car carriers.

[0004] Therefore, how to quickly, efficiently and targetedly monitor the safety of new energy vehicle power battery packs in the cabins of car transport ships has become a difficult problem that needs to be solved. Summary of the Invention

[0005] In order to overcome the defects and shortcomings of the existing technology, the present invention provides a car power battery temperature monitoring system and method in the cabin of a transport ship. The present invention is based on multiple intelligent vehicles to perform efficient, intuitive and global safety monitoring of the new energy vehicle power battery packs loaded in the cabin of the car transport ship.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention provides a vehicle power battery temperature monitoring system in a transport ship cabin, comprising: a monitoring host computer system and a plurality of intelligent vehicles, wherein the intelligent vehicles are provided with a laser radar;

[0008] The monitoring host computer system includes: a two-dimensional cabin mapping module, a path planning module, an intelligent car scheduling module, an intelligent car radar information map supplement module, and a car power battery temperature monitoring and display module in the cabin;

[0009] The two-dimensional cabin mapping module is used to create an initial map and initial obstacles according to the distribution of car berths in the car carrier;

[0010] The path planning module is used to plan the driving path of the smart car according to the set path starting position, waypoints and end position;

[0011] The smart car dispatching module is used to dispatch the smart car to each waypoint according to the planned driving route;

[0012] The smart car monitors the temperature of the power battery packs of new energy vehicles on the path and uses a laser radar to scan the berth details;

[0013] The intelligent car radar information map supplement module is used to correct and reconstruct the initial map of berth details based on the laser radar scanning data fed back by the intelligent car, supplement the initial map and initial obstacles, and store the actual driving path trajectory;

[0014] The vehicle power battery temperature monitoring and display module in the cabin is used to locate and display the temperature of the new energy vehicle power battery pack returned by the smart car, and complete the filling and display of the vehicle power battery pack temperature information of each berth on the map based on the power battery pack temperature information.

[0015] As a preferred technical solution, the two-dimensional cabin mapping module is used to create an initial map according to the distribution of car berths in the car transport ship. The two-dimensional cabin mapping module fills black squares at the four corners of each berth as initial obstacles for the intelligent car path planning.

[0016] As an optimal technical solution, the path planning module completes the intelligent car's driving path planning based on the a* algorithm.

[0017] As a preferred technical solution, the intelligent car radar information map completion module fuses the lidar scanning data and the initial map through Rviz to complete the initial map and initial obstacles.

[0018] As a preferred technical solution, the monitoring host computer system is also provided with a temperature alarm reminder module, which is used to determine whether the temperature of the new energy vehicle power battery pack exceeds a set threshold, and activate an alarm reminder if it exceeds the set threshold.

[0019] As a preferred technical solution, the smart car is also provided with a non-contact temperature sensor and / or a thermal imaging camera for temperature monitoring of the power battery pack of the new energy vehicle.

[0020] As an optimal technical solution, the smart car is also provided with an IMU inertial navigation module for monitoring real-time pitch angle and roll angle. The smart car adjusts its posture according to the data of the IMU inertial navigation module, and performs path correction if it is determined to have deviated from the route.

[0021] The present invention also provides a method for monitoring the temperature of an automobile power battery in a transport ship cabin, provided with the above-mentioned automobile power battery temperature monitoring system in a transport ship cabin, the method comprising the following steps:

[0022] Creating an initial map and initial obstacles based on the distribution of car berths in the car carrier;

[0023] Plan the driving path of the smart car according to the set starting position, waypoints and end point of the path;

[0024] When the smart car passes through the parking spaces in the initial map, it monitors the power battery packs of the new energy vehicles passing by and uses LiDAR to scan the parking space details.

[0025] Based on the LiDAR scanning data fed back by the smart car, the initial map is corrected and reconstructed to include berth details, the initial map and initial obstacles are completed, and the actual driving path trajectory is stored;

[0026] The temperature of the power battery pack of the new energy vehicle returned by the smart car is located and displayed, and the temperature information of the power battery pack of the vehicle at each berth on the map is filled and displayed based on the power battery pack temperature information.

[0027] As a preferred technical solution, it also includes a temperature judgment step to determine whether the temperature of the new energy vehicle power battery pack exceeds a set threshold. If it exceeds the set threshold, an alarm reminder is activated.

[0028] As an optimal technical solution, it also includes a posture adjustment step to monitor the real-time pitch angle and roll angle of the smart car. If it is determined to have deviated from the route, the path correction is performed and the posture is adjusted based on the data of the IMU inertial navigation module.

[0029] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0030] The present invention uses multiple intelligent vehicles to carry out efficient, intuitive and global safety monitoring of new energy vehicle power battery packs loaded in the cabin of a car transport ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall architecture of the automobile power battery temperature monitoring system in the cabin of a transport ship according to the present invention;

[0032] Figure 2 This is a schematic diagram of the architecture for realizing the functions of the automobile power battery temperature monitoring system in the cabin of a transport ship according to the present invention;

[0033] Figure 3 Schematic diagram of the initial map created for this invention;

[0034] Figure 4A schematic diagram of the implementation process of planning and monitoring the driving path of the intelligent vehicle according to the present invention;

[0035] Figure 5 This is a schematic diagram of the result of correcting and reconstructing the berth details on the initial map according to the present invention;

[0036] Figure 6 Schematic diagram of the structure of the intelligent car of the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] Example 1

[0039] like Figure 1 、 Figure 2 As shown, this embodiment provides a vehicle power battery temperature monitoring system in the cabin of a transport ship, comprising: a monitoring host computer system (i.e., a PC host computer) and multiple smart cars to monitor the temperature of the power battery packs of new energy vehicles loaded in the cabin of the car transport ship;

[0040] In this embodiment, the monitoring host computer system includes: a two-dimensional cabin mapping module, a path planning module, an intelligent car scheduling module, an intelligent car radar information map module, and a car power battery temperature monitoring and display module in the cabin;

[0041] like Figure 3 As shown, the 2D cabin mapping module creates an initial map based on the distribution of car berths in the car carrier;

[0042] In this embodiment, an initial map and initial obstacles are created based on the car carrier cabin drawings or on-site car berth conditions. The two-dimensional cabin mapping module fills the four corners of each berth with black squares, i.e., car tires, as initial obstacles for the intelligent car's path planning.

[0043] like Figure 4 As shown in the figure, the path planning module plans the driving path of the smart car according to the set path starting position, waypoints and end point positions;

[0044] In this embodiment, the path planning module completes the intelligent car's driving path planning based on the A* algorithm. The planned driving path does not exceed the area planned by the two-dimensional cabin mapping module. The planned path prioritizes passing through more car parking spaces at the same distance. The starting point of the planned path is first calculated, and then the starting point with the shortest distance to the intelligent car is prioritized. The intelligent car is selected for monitoring.

[0045] The smart car dispatching module dispatches smart cars to various waypoints according to the planned driving route. The smart cars monitor the temperature of the power battery packs of new energy vehicles along the route.

[0046] In this embodiment, the smart car uses a non-contact temperature sensor and a thermal imaging camera for temperature monitoring;

[0047] like Figure 5 As shown in the figure, the radar information map completion module of the intelligent car reconstructs the berth details of the initial map based on the lidar scanning data fed back by the intelligent car, completes the initial map and initial obstacles, and stores the actual driving path trajectory;

[0048] In this embodiment, after the smart car passes the berth, the real situation on the berth, such as the position, width, and length of the car tires, is combined with the real information returned by the smart car radar information re-map module and the preliminary map for correction and reconstruction;

[0049] In this embodiment, after receiving the driving path information, the smart car automatically drives to the destination. During the driving process, the smart car monitors the temperature of the power battery packs of the new energy vehicles passing by, and uses the laser radar to scan the berth details, such as the position of the car's tires and the position of the lashing straps.

[0050] In this embodiment, the lidar scanning data and the initial map are fused through Rviz to complete the initial map;

[0051] The vehicle power battery temperature monitoring and display module in the cabin locates and displays the temperature of the new energy vehicle power battery pack returned by the smart car. Based on the power battery pack temperature information, it completes the filling and display of the vehicle power battery pack temperature information of each berth on the map, and finally completes the power battery pack temperature monitoring of all new energy vehicles in the cabin;

[0052] The temperature alarm reminder module determines whether the temperature of the new energy vehicle power battery pack exceeds the set threshold. If it exceeds the set threshold, an alarm reminder will be activated;

[0053] The functions of the smart car include infrared thermal imaging temperature measurement, stabilization in ship working environments, non-contact temperature measurement and three-dimensional mapping. Figure 6 As shown in the figure, infrared thermal imaging temperature measurement is achieved by fixed-point detection using the infrared thermal imaging camera carried by the car. Stability enhancement in the ship's working environment is achieved by the IMU inertial navigation module carried by the car monitoring the real-time pitch angle, roll angle, etc., and reverse output of speed and acceleration. Non-contact temperature measurement is achieved by scanning with the air-temperature measurement probe carried by the car. Three-dimensional mapping is achieved by collecting data from the laser radar carried by the car and returning it to the host computer.

[0054] Example 2

[0055] This embodiment provides a method for monitoring the temperature of a vehicle power battery in a transport ship cabin, provided with the vehicle power battery temperature monitoring system in a transport ship cabin of the above-mentioned embodiment 1. The method comprises the following steps:

[0056] S1: Create an initial map and initial obstacles based on the distribution of car berths in the car carrier;

[0057] S2: Plan the driving path of the smart car based on the set starting position, waypoints and end point of the path;

[0058] S3: After receiving the driving route information, the smart car automatically drives to the destination. When passing through the parking spaces in the initial map, it monitors the power battery packs of new energy vehicles passing by and uses LiDAR to scan the parking space details.

[0059] S4: Based on the map details data returned by the LiDAR of each smart car, the initial map and initial obstacle details are supplemented, and the actual driving path trajectory is stored;

[0060] S5: Fill the feedback temperature monitoring data into each berth corresponding to each new energy vehicle on the map, completing the temperature monitoring and display of all new energy vehicle power batteries in the entire car carrier cabin;

[0061] S6: Determine whether the temperature of the new energy vehicle power battery pack exceeds the set threshold. If it exceeds the set threshold, an alarm will be activated;

[0062] During the temperature detection process of the smart car on the power battery pack of the new energy vehicle, if the ship encounters wind and waves and is shaking, the smart car will adjust its posture according to the IMU data and use the motor to control the driving mechanism to output reverse acceleration and speed. If it deviates from the route slightly, it will make a path correction by comparing the path of the smart car affected by the hull shaking with the original planned path. If there is a large shaking that causes the smart car to deviate from the path, the interrupt trigger and path replanning function will be used to implement the car path correction, so that the car can quickly return to the originally planned driving route.

[0063] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A vehicle power battery temperature monitoring system in a transport ship cabin, characterized in that: include: Monitor the host computer system and multiple smart cars equipped with laser radar; The monitoring host computer system includes: a two-dimensional cabin mapping module, a path planning module, an intelligent car scheduling module, an intelligent car radar information map supplement module, and a car power battery temperature monitoring and display module in the cabin; The two-dimensional cabin mapping module is used to create an initial map and initial obstacles according to the distribution of car berths in the car carrier; The two-dimensional cabin mapping module is used to create an initial map based on the distribution of car berths in the car carrier. The two-dimensional cabin mapping module fills the four corners of each berth with black squares as initial obstacles for the intelligent car's path planning; The path planning module is used to plan the driving path of the smart car according to the set path starting position, waypoints and end position; The smart car dispatching module is used to dispatch the smart car to each waypoint according to the planned driving route; The smart car monitors the temperature of the power battery packs of new energy vehicles on the path and uses a laser radar to scan the berth details; The intelligent car radar information map supplement module is used to correct and reconstruct the initial map of berth details based on the laser radar scanning data fed back by the intelligent car, supplement the initial map and initial obstacles, and store the actual driving path trajectory; The intelligent car radar information map completion module fuses the lidar scanning data with the initial map through Rviz to complete the initial map and initial obstacles; The vehicle power battery temperature monitoring and display module in the cabin is used to locate and display the temperature of the new energy vehicle power battery pack returned by the smart car, and complete the filling and display of the vehicle power battery pack temperature information of each berth on the map according to the power battery pack temperature information; The smart car is also equipped with an IMU inertial navigation module for monitoring real-time pitch angles and roll angles. If the ship is shaken by wind and waves, the smart car adjusts its posture according to the data of the IMU inertial navigation module and uses a motor to control the driving mechanism to output reverse acceleration and speed. If it is determined to have deviated from the route, the path correction is performed. Interruption correction is performed by comparing the path of the smart car affected by the shaking of the hull with the original planned path.

2. The automobile power battery temperature monitoring system in the cabin of a transport ship according to claim 1 is characterized in that: The path planning module completes the intelligent car's driving path planning according to the a* algorithm.

3. The automobile power battery temperature monitoring system in the cabin of a transport ship according to claim 1 is characterized in that: The monitoring host computer system is also provided with a temperature alarm reminder module, which is used to determine whether the temperature of the new energy vehicle power battery pack exceeds a set threshold, and activate an alarm reminder if it exceeds the set threshold.

4. The automobile power battery temperature monitoring system in the cabin of a transport ship according to claim 1 is characterized in that: The smart car is also equipped with a non-contact temperature sensor and / or a thermal imaging camera for temperature monitoring of the power battery pack of new energy vehicles.

5. A method for monitoring the temperature of automobile power batteries in a transport ship cabin, characterized in that: A vehicle power battery temperature monitoring system in a transport ship cabin according to any one of claims 1 to 4 is provided, and the method comprises the following steps: Creating an initial map and initial obstacles based on the distribution of car berths in the car carrier; Plan the driving path of the smart car according to the set starting position, waypoints and end point of the path; When the smart car passes through the parking spaces in the initial map, it monitors the power battery packs of the new energy vehicles passing by and uses LiDAR to scan the parking space details. Based on the LiDAR scanning data fed back by the smart car, the initial map is corrected and reconstructed to include berth details, the initial map and initial obstacles are completed, and the actual driving path trajectory is stored; The temperature of the power battery pack of the new energy vehicle returned by the smart car is located and displayed, and the temperature information of the power battery pack of the vehicle at each berth on the map is filled and displayed based on the power battery pack temperature information.

6. The method for monitoring the temperature of automobile power batteries in a transport ship cabin according to claim 5, characterized in that: It also includes a temperature judgment step to determine whether the temperature of the new energy vehicle power battery pack exceeds a set threshold. If it exceeds the set threshold, an alarm reminder is activated.

7. The method for monitoring the temperature of automobile power batteries in a transport ship cabin according to claim 5, characterized in that: It also includes a posture adjustment step to monitor the real-time pitch angle and roll angle of the smart car. If it is determined to have deviated from the route, the path correction is performed and the posture is adjusted based on the data from the IMU inertial navigation module.

Images