Laser Receiver Self-Motion Compensation via Acceleration Feedback
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Solution Overview
Problem
Conventional laser receivers struggle to accurately detect and adjust the elevation of a rotating laser beam when the receiver itself undergoes unintended movements, such as tilting, drifting, or other arbitrary movements, which can lead to incorrect adjustments of the laser beam or plane.
Innovation Solution
Incorporating an acceleration sensor into the laser receiver to provide movement and direction data, which is then used by the circuitry to weight and correct the photo sensor signals, allowing for accurate detection and adjustment of the laser beam independent of the receiver's movements, and enabling automated corrections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the laser receiver is made portable and hand-held for ease of operation, then the ease of operation is improved, but the stability of the receiver position deteriorates, leading to unintended movements during detection
Solution Approach 1:
The acceleration sensor provides continuous feedback about the receiver's motion state to the control unit. This feedback loop enables the system to detect unintended movements and automatically compensate for them, maintaining detection accuracy despite the receiver being portable and potentially moving during operation.
Solution Approach 2:
The patent replaces mechanical stabilization methods (such as tripods or fixed mounting) with an electronic/sensor-based solution. Instead of mechanically fixing the receiver to ensure stability, the system uses acceleration sensors and electronic signal processing to compensate for movements, achieving stability through information processing rather than mechanical constraint.
2Measurement precision
If the laser receiver detects movements to correct for them, then the measurement precision is improved, but the device complexity increases due to additional sensors and processing
Solution Approach 1:
The acceleration sensor serves multiple functions: it detects the receiver's motion state, provides data for compensation calculations, and enables the system to adapt to different operating conditions. This multi-functionality justifies the added component by providing several benefits from a single addition.
Solution Approach 2:
The system performs self-correction by using its own acceleration sensor data to compensate for its movements. The control unit automatically processes the sensor signals and adjusts the detection results without requiring external intervention or complex additional equipment, making the system self-sufficient in maintaining accuracy.
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
This solution ensures precise and accurate detection and adjustment of the laser beam, even during unintended movements of the receiver, enhancing the user's ability to accurately position the laser beam and plane, and facilitating more efficient and user-friendly operation.
Implementation Method 1
a laser light photo sensor (1) having a zero position, said photo sensor providing an electrical output signal when illuminated by a laser beam
Implementation Method 2
an acceleration sensor (4), which is designed to provide electrical output signals indicating a movement of the laser receiver together with an indication of a direction and an acceleration of this movement
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a laser system (100) comprising a laser receiver (10) and a laser emitter (20) and to a method using this system (100). The laser receiver is designed for locating a laser beam (22) relative to the laser receiver (10) by its laser light photo sensor (1). The laser receiver (10) has an acceleration sensor (4) providing a signal indicating a movement of the laser receiver together with a movement direction and an acceleration of this movement and a circuitry (3) connected to said photo sensor (1) and to the acceleration sensor (4) designed to compute and correlate the signals of photo sensor (1) and acceleration sensor (4) and to weight the information derived from the acceleration sensor (4). Laser receiver and laser emitter of the laser system are both provided with communication means, so that by communicating the weighted information the laser plane can be adjusted and/or readjusted in response to a movement of the leaser receiver.