Material Handling Vehicle V2V Path Overlap Warning in Blind Zones
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Solution Overview
Problem
Conventional warehouse environments rely heavily on visual observation for vehicle awareness, which can be inadequate for maintaining safety due to the complexity of navigating multiple material handling vehicles and the need for operators to predict trajectories without direct line of sight.
Innovation Solution
Implementing a vehicle-to-vehicle communication system that uses wireless transceivers, speed sensors, steering angle sensors, and position sensors to calculate and compare predicted vehicle paths between material handling vehicles, providing operators with real-time notifications of potential overlaps and enabling proactive control measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual observation is used for vehicle awareness, then operators can detect nearby vehicles, but safety is inadequate due to complexity of navigating multiple vehicles and need to predict trajectories without direct line of sight
Solution Approach 1:
The patent introduces wireless transceivers as intermediaries between material handling vehicles and operators. These transceivers transmit vehicle position, speed, and trajectory data to operators' display devices, serving as a communication mediator that bridges the gap between vehicles and operators without requiring direct visual contact. This resolves the contradiction by providing reliable safety information while avoiding the complexity of manual trajectory prediction in multi-vehicle environments.
Solution Approach 2:
The system implements continuous feedback by having wireless transceivers on each vehicle constantly transmit position, speed, and trajectory data to other vehicles' display devices. This real-time feedback loop allows operators to see the current state of nearby vehicles and predict their trajectories based on displayed data, improving safety without requiring operators to manually track and predict multiple moving vehicles simultaneously.
2Loss of information
If wireless transceivers and sensors are implemented for vehicle-to-vehicle communication, then operator awareness is enhanced with real-time notifications, but device complexity increases
Solution Approach 1:
The patent makes each material handling vehicle universal by equipping it with both wireless transceiver capabilities and display devices. Each vehicle can both transmit its own position and trajectory data and receive/display data from other vehicles. This multi-functionality reduces the need for separate dedicated communication infrastructure, as the vehicles themselves serve as both information sources and information receivers, thereby reducing overall system complexity while improving information availability.
Solution Approach 2:
The system implements self-service by having each vehicle automatically transmit its own operational data (position, speed, trajectory) through its onboard wireless transceiver without requiring external monitoring equipment. The vehicles self-manage the communication of their state information to the network, reducing the need for additional complex external sensing and communication infrastructure.
3Ease of operation
If operators manually control and predict trajectories of multiple vehicles, then flexibility in navigation is maintained, but collision risk increases due to inability to maintain awareness of all vehicles
Solution Approach 1:
The patent segments the complex task of multi-vehicle awareness into individual vehicle data streams. Instead of requiring operators to process integrated information about multiple moving vehicles simultaneously, the system presents segmented information about each vehicle separately on display devices. This segmentation allows operators to maintain manual control flexibility while reducing cognitive load and improving collision avoidance through organized, vehicle-by-vehicle information presentation.
Data Source
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AI summary
Systems and methods provide assistance to an operator of a material handling vehicle. Provided systems and methods include receiving vehicle condition data at a first material handling vehicle (10a) from a second material handling vehicle (10b) when the second material handling vehicle is within a predetermined communication range, determining a first predicted vehicle position for the first material handling vehicle based on current vehicle conditions, determining a second predicted vehicle position for the second material handling vehicle based on the received vehicle condition data, and determining if the first predicted vehicle position for the first material handling vehicle overlaps with the second predicted vehicle position for the second material handling vehicle. Upon the determination that the first predicted vehicle position overlaps with the second predicted vehicle position, the operator of the first material handling vehicle is provided an indication.