Geodetic Apparatus Single-User Target Alignment

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Solution Overview

Problem

Traditional geodetic apparatuses require two users to adjust the position of a target relative to the apparatus, making it time-consuming and costly due to the need for precise alignment of light beams and complex optics, especially at long distances.

Innovation Solution

A geodetic apparatus with a detector and light emitter that outputs cones of light with different wavelengths, allowing a single user to align the target with the sighting axis by measuring the target's position and controlling the light output based on detected offsets, maintaining the apparatus's orientation constant.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional geodetic apparatuses use complex optics and multiple light beams for alignment, then measurement precision is improved, but device complexity and manufacturing costs increase

Engineering Contradiction:
Improvealignment precisionVSAvoidoptics complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the alignment function from complex optical systems and implements it through a simplified controller that processes detector signals and generates alignment instructions. The controller separates the measurement function (detector) from the alignment control function, eliminating the need for complex aligning optics while maintaining precision through electronic control and visual feedback mechanisms.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical/optical alignment systems with an electronic control system. Instead of using complex optical components and mechanical adjustments, the system uses a detector to sense target position, a controller to process this information, and visual indicators (such as colored lights or display elements) to guide the user, substituting mechanical optics with electronic information processing and visual feedback.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If traditional geodetic apparatuses require two users for target alignment, then measurement precision is maintained, but productivity decreases

Engineering Contradiction:
Improvealignment accuracyVSAvoidalignment speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent implements self-service alignment by providing the user with visual feedback from the detector about the target's position relative to the sighting axis. The system automatically processes the detector signals and presents alignment guidance to the user, allowing the user to independently adjust the target without requiring a second operator, thus maintaining precision while improving productivity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent introduces a feedback loop where the detector continuously monitors the target position and the controller provides real-time alignment instructions to the user through visual indicators. This feedback mechanism enables the user to make precise adjustments independently, replacing the need for two users while maintaining alignment accuracy through continuous positional information.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If geodetic apparatuses use adjustable lenses for field of view alteration, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improvefield of view adjustmentVSAvoidlens system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the field of view adjustable through a controller that can alter the detection parameters or display representation based on measurement distance and target position. Instead of physical lens adjustments, the system dynamically adapts the electronic detection and visualization to provide appropriate field of view for near-field and far-field measurements, maintaining adaptability while reducing mechanical complexity.

Inventive Principle:
Principle #15Dynamics

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 simplifies the alignment process, reduces manufacturing costs, and ensures robustness by eliminating the need for complex optics, allowing a single user to align the target efficiently and effectively, even at long distances.

Implementation Method 1

a light emitter for outputting from the apparatus a first cone of light having a first wavelength and a second cone of light having a second wavelength different from the first wavelength

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentUS8581978B2Geodetic apparatus and method for controlling the same
Publication Date: 2013.11.12 TRIMBLE JENA
  • US8581978B2 patent drawing
  • US8581978B2 patent drawing
  • US8581978B2 patent drawing

AI summary

A geodetic apparatus for performing measurements using a target and a method for controlling the geodetic apparatus is disclosed. The apparatus comprises a detector for measuring a position of the target relative to a sighting axis of the apparatus, a light emitter for outputting to an outside of the geodetic apparatus a first cone of light having a first wavelength and a second cone of light having a second wavelength different from the first wavelength, and a controller connected to both the detector and the light emitter. The first cone of light overlaps with the second cone of light at the distance of one meter from the apparatus by at least 30%. The controller is configured to control the light emitter based on the detected position of the target to output at least one of the first cone of light and the second cone of light.