Laser Marker Vibration Compensation via Tilt Sensor Feedback
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Solution Overview
Problem
Automatic leveling devices in multistory buildings face challenges in maintaining accurate laser line application due to building vibrations, leading to inconsistencies between sensor detection values and reference values.
Innovation Solution
A laser marker with a movable portion, tilt sensors, and actuators that adjust the tilt to align the center value with a reference value, using filtering and averaging techniques to account for building vibrations, ensuring accurate leveling even in vibrating environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatic leveling is performed using a tilt sensor and actuator in a multistory building, then the laser line can be applied with reference to the building structure, but building vibrations cause the sensor detection value to deviate from the reference value, reducing leveling accuracy
Solution Approach 1:
The system performs preliminary leveling by acquiring multiple detection values and calculating a center value before final laser line application. This preliminary action allows the system to establish an accurate reference point despite building vibrations, as the center value represents the stable position around which vibrations oscillate.
Solution Approach 2:
The system continuously monitors the difference between the center value and reference value, and repeatedly executes the leveling process until these values coincide. This feedback mechanism ensures that even during building vibrations, the laser line is eventually applied with high accuracy by making incremental adjustments based on real-time sensor data.
2Measurement precision
If the leveling process is repeatedly executed to compensate for building vibrations, then laser line accuracy is improved, but the time required for leveling increases
Solution Approach 1:
The system performs preliminary acquisition of multiple detection values and calculates the center value before final laser line application. This preliminary action consolidates vibration compensation into a single preparatory phase, allowing subsequent leveling operations to proceed more efficiently with fewer repeated executions.
Solution Approach 2:
The system uses periodic sampling of detection values at predetermined intervals to capture building vibration patterns. By analyzing these periodic vibrations and calculating the center value from multiple samples, the system compensates for vibrations efficiently without requiring continuous repeated leveling executions.
3Measurement precision
If the tilt sensor continuously monitors building vibrations and adjusts the laser marker position, then leveling accuracy in vibrating buildings is improved, but the device complexity increases
Solution Approach 1:
The system uses the building's own vibration pattern as the reference for leveling. By calculating the center value from multiple detection values that capture the vibration cycle, the system automatically adapts to the building's vibration characteristics without requiring external reference systems or complex vibration cancellation mechanisms.
Solution Approach 2:
The system changes the reference parameter from a fixed static value to a dynamic center value calculated from multiple detection readings. This parameter change allows the system to accommodate building vibrations by using the statistical center of the vibration range as the reference, simplifying the overall system architecture while maintaining high 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
The solution enables precise alignment of the laser line with the building's gravity direction, enhancing accuracy and stability during leveling processes in multistory buildings by continuously adjusting for vibrations, thus maintaining reliable leveling operations.
Implementation Method 1
the tilt sensor detects a first tilt of the movable portion with respect to the supporter. The first tilt corresponds to a tilt with respect to a first axis on a horizontal plane
Implementation Method 2
The at least one laser optical source is provided to the movable portion and emits at least one laser line
Data Source
AI summary
In one aspect of the present disclosure, a laser marker includes a supporter, a movable portion, at least one laser optical source, a tilt sensor, a first actuator, and a controller. The movable portion is tiltably supported by the supporter. The tilt sensor is provided to the movable portion, detects a first tilt of the movable portion, and outputs a first detection value that indicates the first tilt. The first actuator changes a tilt of the movable portion with respect to the supporter. The controller controls the first actuator such that a center value of a first series of detection values and a reference value coincide with each other.