Rail-Guided Vehicle Position Detection with Body-Behavior Compensation
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Solution Overview
Problem
Existing rail-guided vehicles face challenges in accurately determining the position abnormalities of rail peripheral equipment due to changes in the vehicle's behavior, leading to potential erroneous determinations.
Innovation Solution
Incorporating a measurement device, such as a length measuring sensor, to measure the vehicle's behavior alongside detection devices for rail peripheral equipment, allowing for differentiation between actual abnormalities and those caused by vehicle behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detection device is provided in the vehicle body to detect the position of rail peripheral equipment, then the position can be detected, but the relative position changes depending on vehicle body behavior causing erroneous determination
Solution Approach 1:
A measurement device is introduced as an intermediary to detect vehicle body behavior (inclination, acceleration). This intermediary measurement allows the system to compensate for vehicle behavior effects on the detection device, thereby maintaining accurate position determination despite vehicle motion. The measurement device acts as a mediator between the vehicle body dynamics and the detection device readings.
Solution Approach 2:
The system uses feedback from the measurement device to continuously monitor and compensate for vehicle body behavior. By feeding back the measured behavior data to the determination logic, the system can distinguish between position changes caused by vehicle motion versus actual rail peripheral equipment abnormalities, improving determination reliability.
2Device complexity
If the detection device is fixed in the vehicle body, then the structure is simple, but the detection accuracy deteriorates due to vehicle behavior changes
Solution Approach 1:
The measurement device serves multiple functions: it measures vehicle body inclination, acceleration, and other behavioral parameters that affect detection accuracy. By making the detection system multi-functional (combining position detection with behavior measurement), the system maintains simplicity while improving accuracy through comprehensive data collection.
Data Source
AI summary
A rail-guided vehicle is capable of accurately determining an abnormality of a position of rail peripheral equipment. The rail-guided vehicle travels along a rail. The rail-guided vehicle is provided with: a vehicle body including a body part and a traveling part; a light projecting/receiving sensor and contact type sensors provided in the vehicle body that each detect a position of rail peripheral equipment; and a length measuring sensor that measures behavior of the vehicle body at the time of detection of the rail peripheral equipment by the light projecting/receiving sensor and the contact type sensors.