Projection System Asynchronous Alignment Control
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Solution Overview
Problem
Conventional projection systems face accuracy and precision issues due to manufacturing tolerances and environmental factors, causing deviations in hitting a target point.
Innovation Solution
A projection system comprising a control module, a projection tube, an aiming driver, and an observation device, where the projection tube and observation device are controlled asynchronously to align with a calibration point, improving alignment accuracy and precision through Ethernet communication and independent movement mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the projection tube and observation device are controlled synchronously, then the system structure is simpler, but the alignment accuracy deteriorates due to mechanical errors and tolerances
Solution Approach 1:
The system divides the control of the projection tube and observation device into separate independent control mechanisms. The projection tube is controlled by a projection drive mechanism while the observation device is controlled by an observation drive mechanism, allowing independent adjustment and calibration of each component to eliminate mechanical errors from synchronized coupling
Solution Approach 2:
The system employs a feedback mechanism where the observation device detects the position of the projected object and sends signals back to the control module. The control module then adjusts the projection tube's position based on this feedback to achieve precise alignment with the target point, continuously compensating for deviations
2Measurement precision
If conventional projection systems are used, then the system structure is simple, but the precision of hitting the target point deteriorates due to tolerances and environmental factors
Solution Approach 1:
The observation device acts as an intermediary between the projection tube and the target point. It detects the actual position of the projected object and provides correction information to the control module, which then adjusts the projection tube to compensate for environmental factors and achieve precise target hitting
Solution Approach 2:
The system replaces purely mechanical alignment methods with a combination of optical detection (observation device) and electronic control (control module). This substitution allows for more precise adjustment and compensation of environmental factors compared to traditional mechanical systems
Data Source
AI summary
A projection system includes a control module, a projection tube, an aiming driver, an observation device and an observation driver. The control module is configured to issue a first control command and a second control command. The aiming driver is electrically connected to the projection tube and configured to control, in response to the first control command, a projection viewing-line of the projection tube to be aligned with a calibration point. The observation driver is electrically connected to the observation device and configured to control, in response to the second control command, an observation viewing-line of the observation device to be aligned with the calibration point. The projection tube and the observation device are controlled asynchronously.