Laser Receiver With Acceleration Sensor For Beam Localization
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Solution Overview
Problem
The precise localization of a laser light plane generated by rotating construction lasers or line lasers on construction sites is time-consuming due to the need for multiple sweeps of a conventional laser receiver to detect the beam, especially when using infrared beams, and is hindered by the dimming and defocusing of laser beams at greater distances.
Innovation Solution
A laser receiver system that combines a laser light photo sensor with an acceleration sensor, allowing for the derivation of movement direction relative to the laser beam, reducing the number of beam strikes required for localization and enabling faster sweep speeds, along with communication means for adjusting the laser emitter's beam focus and orientation based on sensor data, facilitating more efficient alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional laser receivers are used with multiple sweeps to locate the laser beam, then localization precision is improved, but the time required for localization increases significantly
Solution Approach 1:
The acceleration sensor continuously monitors the receiver's movement and predicts the optimal moment to capture beam strike data, allowing the system to prepare for and execute localization more efficiently without requiring multiple manual sweeps
Solution Approach 2:
The system uses feedback from the acceleration sensor and photo sensor to dynamically adjust the laser emitter's focus and orientation, creating a closed-loop system that automatically optimizes beam delivery to the receiver, reducing the need for manual localization sweeps
2Object-affected harmful factors
If laser beam power is reduced for eye safety, then safety is improved, but beam intensity and focus at distance deteriorate
Solution Approach 1:
The laser emitter dynamically adjusts its focus and orientation based on real-time feedback from the receiver's position and movement data, allowing the low-power beam to remain effectively focused on the receiver even at greater distances
Solution Approach 2:
The system changes the beam's focus parameter and orientation angle in response to receiver position changes, maintaining optimal beam delivery conditions while operating at safe low power levels
3Productivity
If the laser receiver is moved faster through the laser plane, then productivity is improved, but the precision of beam localization may deteriorate
Solution Approach 1:
The acceleration sensor continuously tracks the receiver's motion trajectory in advance, allowing the system to predict when the beam will strike the photo sensor and capture data at the optimal moment, maintaining precision even during rapid movement
Solution Approach 2:
The system replaces manual iterative adjustment with automated electronic detection and computation, using the acceleration sensor data and photo sensor signals to calculate receiver position and orientation automatically, enabling fast movement without sacrificing precision
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 system allows for more efficient localization of the laser beam and light plane, reducing the time and effort needed to align the receiver with the emitter, even at greater distances, by using sensor data to adjust the laser beam's focus and orientation dynamically.
Implementation Method 1
an acceleration sensor designed to provide an electrical output signal indicating a movement and at least a movement direction of the laser receiver
Implementation Method 2
a laser light photo sensor—particularly having a zero position—providing an electrical output signal when illuminated by a laser beam
Data Source
AI summary
The invention relates to a laser system comprising a laser receiver collaborating with a laser emitter. The laser emitter is designed to provide a laser light plane and includes a control unit connected to a communication signal receiver in order to process and compute incoming communication signals from the laser receiver. The laser receiver comprising a communication signal transmitter for communicating with the laser emitter, a linear laser light photo sensor and an acceleration sensor both connected to a circuitry, which is designed to derive a movement of the laser receiver with respect to the detected laser beam of the laser emitter from computing and correlating the signals of the acceleration senor and the laser light photo sensor. The control unit includes an adjustment unit and adjustment is carried out by the adjustment unit in dependence of the processed and computed incoming communication signals of the laser receiver.