Working Surface Positioning via Scan Map Correction
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Solution Overview
Problem
Existing systems face challenges in accurately determining the position of a driving-type working device on a working surface, particularly in construction and civil engineering, leading to poor accuracy and inefficiencies in displaying specific content or performing repetitive tasks.
Innovation Solution
A location measuring system comprising a data transmitting and receiving unit, a driving unit, a sensing unit, a position detecting unit, and a correcting unit to accurately determine the position of a driving-type working device by measuring distances and angles to reference points, correcting positional data, and generating accurate path data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual marking methods are used by workers, then flexibility in operation is maintained, but positioning accuracy deteriorates
Solution Approach 1:
The driving-type working device autonomously determines its own position by integrating the position detecting unit, sensing unit, and correcting unit. The device self-corrects positional deviations by measuring distances to reference points and comparing sensed environment data with map data, eliminating the need for manual positioning operations while achieving high accuracy.
Solution Approach 2:
The patent replaces manual mechanical positioning operations with an automated electronic positioning system. The position detecting unit uses sensors and reference points to electronically determine position, substituting the mechanical manual marking process with an automated sensing and calculation system that achieves superior accuracy.
2Measurement precision
If automated position detection is implemented, then positioning accuracy is improved, but system complexity increases
Solution Approach 1:
The positioning system is divided into three functional modules: a position detecting unit that calculates position from sensor data, a sensing unit that measures environmental features, and a correcting unit that refines position data by comparing with map data. This segmentation allows each module to perform a specific function, managing complexity through modular design while achieving high accuracy.
Solution Approach 2:
The driving-type working device integrates multiple functions into a single platform: it performs work operations while simultaneously executing position detection, environmental sensing, and self-correction. This multi-functionality reduces overall system complexity by consolidating positioning and working functions into one device rather than requiring separate systems.
3Reliability
If multiple sensing units and correction mechanisms are added, then positioning reliability is improved, but device complexity increases
Solution Approach 1:
The correcting unit implements a feedback mechanism by continuously comparing the position determined by the position detecting unit with expected positions from map data. When deviations are detected, the system generates correction data to adjust the position determination. This feedback loop improves reliability by self-correcting errors while maintaining a manageable system structure.
Solution Approach 2:
The system performs preliminary position correction by comparing sensed environment data with pre-stored map data before final position determination. This preliminary action of validating position against known map features ensures reliability by detecting and correcting deviations early in the processing chain, preventing error propagation.
Data Source
AI summary
A location measuring system including a driving-type working device is proposed. The system may include a data receiving unit that receives marking data about a working surface, a marking unit that executes a marking operation with respect to the working surface corresponding to the marking data, and a scanning unit that scans a target space. The system may also include a scan condition setting unit that sets a movement path of the driving-type working device corresponding to the marking data, sets a scanning position for scanning the target space in consideration of space map data corresponding to the target space, and sets a scan angle of the scanning unit at the scanning position. The system may further include a position detecting unit that compares scan data acquired via the scanning unit with the space map data to detect a position of the driving-type working device.