Surveying Instrument Remote Control Angle Correction
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Solution Overview
Problem
Conventional surveying instruments without reflectors face challenges in efficiently guiding the sighting of a measuring point, particularly due to limitations in visual field, display resolution, and environmental conditions such as insufficient illuminance or wide dynamic range, which decrease working efficiency.
Innovation Solution
A surveying instrument comprising a main body with a telescope unit, laser pointer, rotation driving unit, angle detectors, and a control unit, along with a remote control operation unit equipped with sensors and buttons, allows for easy guidance of the sighting direction to a measuring point by calculating and correcting directional and vertical angles, enabling precise and efficient alignment of the laser pointer beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a button or slider on a screen is used for controlling the telescope, then the device can perform sighting operations, but the operator cannot perform sensing operation and working efficiency decreases
Solution Approach 1:
The patent replaces the mechanical interface control (buttons and sliders on screen) with a sensor-based system. The sensor detects the operator's line of sight direction and automatically controls the telescope to align with the measured point, eliminating the need for manual button pressing and enabling intuitive sensing operation.
Solution Approach 2:
The system performs self-alignment by automatically calculating the telescope's rotation angles based on sensor-detected line of sight information. The control unit autonomously adjusts the telescope without requiring manual operation, making the system serve itself in the alignment process.
2Measurement precision
If a camera image display is used for selecting a point to be sighted, then the point can be specified on the image, but there are restrictions on visual field or display resolving power
Solution Approach 1:
The patent replaces the camera-based visual display system with a sensor-based line of sight detection system. The sensor directly measures the operator's viewing direction without requiring image capture and display, eliminating restrictions related to camera field of view and screen resolution while maintaining precise point selection capability.
3Adaptability or versatility
If monitoring is performed in low illuminance or wide dynamic range conditions, then the surveying can be conducted in various environments, but the monitor screen becomes difficult to recognize and working efficiency decreases
Solution Approach 1:
The patent replaces the optical monitor display system with a sensor-based line of sight detection system. Since the sensor electronically detects viewing direction without requiring optical illumination of a screen, the system maintains full operability in low illuminance conditions and eliminates the recognition difficulties associated with monitor screens in challenging environmental conditions.
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 enhances working efficiency by allowing easy and accurate guidance of the laser pointer beam to the measuring point, even in challenging environments, and reduces processing load by allowing angle detection only when necessary.
Implementation Method 1
a laser pointer irradiating unit for irradiating a laser pointer beam running in parallel to or on the same axis as an optical axis of the telescope unit
Implementation Method 2
the remote control operation unit has an operation button, a directional angle sensor and a vertical sensor, the angle measurement value is transmitted to the remote control operation unit by pressing the operation button
Data Source
AI summary
The invention provides a surveying instrument, comprising a surveying instrument main body and a remote control operation unit being attachable to and detachable from the surveying instrument main body and capable of communicating with the surveying instrument main body. The remote control operation unit has an operation button, a directional angle sensor and a vertical sensor. The angle measurement value is transmitted to the remote control operation unit by pressing the operation button. The remote control operation unit calculates a difference between the directional angle and the vertical angle detected by the directional angle sensor and the vertical sensor before moving and the directional angle and the vertical angle after moving the remote control operation unit. An angle measurement value after moving is calculated based on the difference and the main body control unit rotates the telescope unit so as to become the angle measurement value after the moving.