Orthogonal State Measuring Device Collision Avoidance
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Solution Overview
Problem
Conventional orthogonal state measuring devices face challenges in ensuring safe operation and improving operability due to the risk of collisions between the CCD camera and the work piece, especially as the device size increases, leading to increased operational complexity and psychological burden on the operator.
Innovation Solution
The integration of a wide angle surveillance camera, processor, and display to generate a bird's-eye image of the work piece, allowing for the creation of a navigation map that overlays the position of the stylus head, CAD data, and completed measurement regions, enabling intuitive understanding and avoidance of collisions without requiring the operator to visually monitor the camera's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the device size is increased to improve measurement capability, then the measurement range is improved, but the risk of collision between the CCD camera and work piece increases
Solution Approach 1:
A wide-angle surveillance camera is introduced as an intermediary monitoring system to capture the entire measurement field. This separate monitoring channel allows the operator to observe the CCD camera's position and detect potential collisions without directly controlling the camera, thus resolving the contradiction between large measurement range and collision risk.
Solution Approach 2:
The surveillance camera provides continuous visual feedback of the measurement area to the operator. This feedback mechanism enables real-time monitoring of the CCD camera's movement and work piece position, allowing the operator to adjust operations to avoid collisions while maintaining a large measurement range.
2Reliability
If the operator visually monitors the CCD camera to avoid collisions, then the collision risk is reduced, but the operational complexity and psychological burden increase
Solution Approach 1:
The monitoring function is extracted from the primary measurement task. The wide-angle surveillance camera separately captures the entire measurement field, allowing the operator to monitor for collisions independently from the measurement operation. This separation reduces operational complexity while maintaining collision avoidance capability.
Solution Approach 2:
The monitoring perspective is changed from the operator's direct line of sight to a bird's-eye view provided by the surveillance camera. This dimensional change allows comprehensive monitoring of the entire measurement area and CCD camera position without requiring the operator to physically position themselves for optimal viewing, thereby reducing operational burden.
Data Source
AI summary
An orthogonal state measuring device includes a measurement table and a CCD camera displacing in X, Y, and Z directions relative to the measurement table and measuring a work piece placed on the measurement table. The orthogonal state measuring device further includes a wide angle surveillance camera, a computer main body, and a display. The wide angle surveillance camera captures in one pass an image that is capable of configuring a bird's-eye image of the work piece, the bird's-eye image encompassing an entire field over which the CCD camera is capable of relative displacement. The computer main body generates the bird's-eye image based on the image and defines a position of the CCD camera on the bird's-eye image, then configures navigation maps in which the position of the CCD camera is composited on the bird's-eye image. The display displays the navigation maps.