Telescopic Trajectory Record Arm for Interference-Free Motion Tracking
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Solution Overview
Problem
Existing technologies struggle to accurately record and transmit motion trajectories due to environmental interference, mechanical faults, and ergonomic challenges, leading to reduced data accuracy and operator safety risks.
Innovation Solution
A trajectory record arm equipped with telescopic bars, sensors, and balancing elements that allow for ergonomic movement and precise data transmission, enabling accurate recording and repetition of motion trajectories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors are positioned at predetermined points to receive data, then data transmission is enabled, but measurement accuracy deteriorates due to environmental interference from light, dust, color distribution, and UV rays
Solution Approach 1:
The patent introduces a mechanical transmission intermediary (trajectory record arm with telescopic bars and sensors) that physically transfers motion data from the connection apparatus to the recording device. This mechanical intermediary bypasses the problematic electromagnetic signal transmission through environmental interference, converting the problem from signal reception to physical motion tracking.
2Adaptability or versatility
If a transmitter moved by the user is used with a fixed sensor, then mobile measurement is enabled, but data accuracy deteriorates due to distortion from magnetic fields, electric motors, and electrical fields
Solution Approach 1:
The patent replaces electromagnetic transmission systems with a purely mechanical measurement system. The trajectory record arm uses mechanical sensors (encoders, potentiometers) attached to the manipulator structure itself, converting electromagnetic signal transmission problems into mechanical position and motion measurements that are immune to electrical and magnetic interference.
3Ease of operation
If coordinate measurements are taken via camera during material spraying, then non-contact measurement is enabled, but data accuracy deteriorates due to influence from particles during spraying process
Solution Approach 1:
The patent introduces a mechanical intermediary system (trajectory record arm with sensors directly attached to the manipulator) that physically follows the connection apparatus through space. This mechanical tracker bypasses the line-of-sight requirements and particle interference problems of optical cameras, providing continuous measurement even during material spraying operations.
4Productivity
If the operator carries the trajectory record arm after motor brakes fade, then manual recording is enabled, but operator safety deteriorates due to risk of crushing or compression under the manipulator
Solution Approach 1:
The patent implements a self-recording system where the trajectory record arm automatically tracks and records the motion of the connection apparatus without requiring operator intervention during the recording process. The system records data autonomously as the manipulator moves, eliminating the need for operators to physically position or carry equipment under moving manipulators, thus preventing crushing and compression injuries.
5Ease of operation
If telescopic bars with freedom of rotation are used, then ergonomic movement is enabled, but device complexity increases due to multiple sensors and balancing elements
Solution Approach 1:
The patent employs balancing elements (counterweights) integrated into the telescopic bar structure to offset the weight of sensors and maintain ergonomic balance. This allows the trajectory record arm to move smoothly and easily despite carrying multiple sensors, as the counterbalancing mechanism compensates for the added weight and complexity, making the system as easy to operate as simpler alternatives.
Data Source
Figure 1
AI summary
The present invention is a trajectory record arm (10) on which the connection apparatus (40) is engaged in order to provide the transmission of the motion trajectory of a connection apparatus (40) to a trajectory recording device. The novelty of the invention is that, it comprises the following; at least one telescopic bar (30) which is engaged on one side with at least one fastening element (20) and on the other side with said connection apparatus (40) such that they have freedom of rotation between them, at least one first sensor (22) for detecting the movement between said telescopic bar (30) and said fastening element (20), at least one second sensor (33) for detecting the distance change between the fastening element (20) and the connection apparatus (40) based on the change in the length of the telescopic bar (30), at least one third sensor (44) for detecting the movement of the connection apparatus (40) in relation with the telescopic bar (30).