Dual Sensor Parking Trajectory Control
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Solution Overview
Problem
Current automatic parking systems rely on instantaneous image capture, failing to account for moving objects and lack continuous monitoring, and pose safety risks if the driver leaves the vehicle during operation.
Innovation Solution
The method employs two independent detection systems, with the first system using sensors like ultrasonic and optical cameras to record surroundings and calculate a trajectory for parking, and the second system continuously monitoring the environment with optical sensors to ensure safety and allow driverless operation via a portable control device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single detection system is used to capture surroundings instantaneously, then the system complexity is low, but the ability to detect moving objects and provide continuous monitoring is insufficient
Solution Approach 1:
The detection system is segmented into two independent subsystems: a first detection system (ultrasonic sensors) for initial parking space detection and trajectory calculation, and a second detection system (optical sensors/cameras) for continuous monitoring during the maneuver. This segmentation allows each system to specialize in specific detection tasks, improving overall reliability while managing complexity through functional division.
Solution Approach 2:
The system changes the operational parameters of detection by using ultrasonic sensors for static environment mapping and optical sensors for dynamic motion detection. This parameter change enables the system to detect both stationary objects and moving objects effectively, addressing the limitation of single-system instantaneous capture.
2Ease of operation
If the driver must remain in the vehicle during automatic parking, then safety monitoring is ensured, but the ease of operation is reduced and driver flexibility is limited
Solution Approach 1:
A portable control device serves as an intermediary between the driver and the automatic parking system. This device receives data from both detection systems and provides real-time visualization and control capabilities to the driver outside the vehicle. The intermediary maintains safety monitoring reliability while enabling driver flexibility by allowing remote supervision and intervention.
Solution Approach 2:
The system replaces the mechanical requirement of driver physical presence in the vehicle with an electronic/optical monitoring system. The second detection system with optical sensors and the portable control device substitute for the driver's direct visual monitoring, allowing the driver to observe and control the maneuver from outside the vehicle.
3Speed
If instantaneous image capture is used for trajectory calculation, then the response time is fast, but the ability to account for moving objects is insufficient
Solution Approach 1:
The first detection system performs preliminary action by capturing the static environment and calculating the trajectory before the parking maneuver begins. This preliminary mapping provides the baseline path, while the second detection system continuously monitors for moving objects during execution, combining fast initial response with ongoing safety verification.
Solution Approach 2:
The system ensures continuity of useful action by having the second detection system continuously monitor the environment throughout the parking maneuver. This continuous optical monitoring complements the initial instantaneous capture, maintaining awareness of moving objects while the vehicle executes the pre-calculated trajectory.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances safety by continuously monitoring the environment during parking maneuvers, allowing the driver to monitor and intervene remotely, preventing accidents and ensuring the vehicle can be safely parked without direct driver presence.
Implementation Method 1
As sensors that can be used to detect the environment, for example, ultrasonic sensors, infrared sensors, radar sensors or LIDAR sensors and optical sensors
Implementation Method 2
optical sensors, the captured images of which are evaluated with image processing software
Implementation Method 3
ultrasonic sensors, infrared sensors, radar sensors or LIDAR sensors and optical sensors
Implementation Method 4
ultrasonic sensors, infrared sensors, radar sensors or LIDAR sensors and optical sensors
Data Source
Figure 1
AI summary
The invention relates to a method for automatically carrying out a driving manoeuvre with a motor vehicle (7) which comprises the following steps: (a) sensing of the surrounding of the motor vehicle (7) with a first sensing system while the vehicle travels past a parking space (1), (b) calculation, a function of the ambient data detected in step (a), of a trajectory (11) along which the motor vehicle (7) is moved during the driving manoeuvre, and (c) automatic movement of the motor vehicle (7) along the trajectory (11) as in order to carry out h the driving manoeuvre, wherein the surroundings of the motor vehicle (7) are sensed by means of a second sensing system, different from the first sensing system, while the motor vehicle (7) is moving. The invention also relates to a device for carrying out the method.