Multi-Hand Robotic Weight Measurement System
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Solution Overview
Problem
Existing weight measurement systems face challenges in efficiently measuring and sorting multiple articles based on their weights, particularly in applications requiring rapid sorting and precise weight determination.
Innovation Solution
A weight measurement system comprising a robot arm, a weight measurement device, and multiple hand movement mechanisms that allow for simultaneous or sequential measurement of articles' weights by holding and measuring individual articles and calculating the weight of each article by subtracting the weight of one article from the total weight measured when both are held.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single hand is used to hold and measure articles sequentially, then measurement precision is maintained, but productivity decreases due to sequential processing time
Solution Approach 1:
The system divides the measurement function into multiple independent hands (first hand, second hand, etc.), each capable of holding and measuring articles simultaneously. This segmentation allows parallel processing of multiple articles, thereby improving productivity while maintaining measurement precision through dedicated measurement mechanisms for each hand.
Solution Approach 2:
Multiple hands are merged into a single integrated system with a common control unit that coordinates their operations. The control unit manages the sequential and parallel operations of multiple hands, enabling simultaneous measurement of multiple articles while maintaining centralized control for precision.
2Productivity
If multiple hands are used to measure articles simultaneously, then productivity increases, but device complexity increases
Solution Approach 1:
Each hand is designed as a universal measurement unit that can independently hold, measure, and release articles. This multi-functionality allows the system to handle multiple articles simultaneously with standardized components, reducing overall system complexity despite the increased number of hands.
Solution Approach 2:
A control unit acts as an intermediary that coordinates the operations of multiple hands. This central mediator manages the complex interactions between hands, articles, and measurement mechanisms, simplifying the control architecture while enabling sophisticated parallel operations.
3Device complexity
If articles are measured one by one in sequence, then device complexity is minimized, but loss of time increases due to sequential processing
Solution Approach 1:
The system segments the measurement process into multiple parallel channels, each with its own hand and measurement capability. This allows simultaneous measurement of multiple articles, dramatically reducing total measurement time while maintaining manageable system complexity through modular design.
Solution Approach 2:
The system enables continuous measurement operations by having multiple hands work in parallel without idle time. While one hand is measuring an article, another hand can be preparing to hold the next article or releasing a previously measured one, eliminating waiting time and maximizing productivity.
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
Enables rapid and precise sorting of articles based on their weights by allowing the system to hold and measure multiple articles efficiently, improving the speed and accuracy of weight determination in applications such as production lines.
Implementation Method 1
a weight measurement device attached to the distal end of the robot arm... configured to measure a weight of a first article held by a first hand... and a weight of a second article held by a second hand
Data Source
AI summary
A weight measurement system able to hold a plurality of articles and measure the respective weight thereof. A weight measurement system includes a robot arm, a weight measurement device attached to the robot arm, a plurality of hand movement mechanisms attached to the weight measurement device, and a plurality of hands separately moved by respective motions of the plurality of hand movement mechanisms, wherein the weight measurement device measures a weight of a first article held by a first of the hands moved by a motion of a first of the hand movement mechanisms and a weight of a second article held by a second of the hands moved by a motion of a second of the hand movement mechanisms.