Coordinate Measuring Device Wireless Authentication
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Solution Overview
Problem
Existing coordinate measuring systems face challenges in securely and intelligently connecting mobile terminal devices to stationary machines, particularly in ensuring authorized access and preventing unauthorized connections, especially when multiple systems are operated in close proximity.
Innovation Solution
A secure wireless connection system using dynamic and static keys, where each coordinate measuring machine has a unique dynamic key and a static key stored in a memory unit, with the authorization key generated based on these keys and a stored generation rule, ensuring only authorized users can establish a connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless connection is enabled for mobile terminal access to coordinate measuring machine, then ease of operation is improved, but security against unauthorized access deteriorates
Solution Approach 1:
The system performs preliminary authentication actions before establishing the wireless connection. The mobile terminal and coordinate measuring machine exchange authentication data and verify each other's identity in advance, ensuring that only authorized devices can connect. This preliminary security check prevents unauthorized access while maintaining ease of operation for authorized users.
Solution Approach 2:
The patent introduces an intermediary authentication mechanism that mediates between the mobile terminal and the coordinate measuring machine. This intermediary layer verifies credentials and establishes secure communication channels, allowing convenient access for authorized users while blocking unauthorized connections without requiring complex security procedures from end users.
2Productivity
If multiple coordinate measuring systems are operated in close proximity, then productivity is improved, but ability to detect and measure authorized connections deteriorates
Solution Approach 1:
The patent segments the authentication and connection management functions for each coordinate measuring system. Each system maintains its own unique authentication credentials and connection identifiers, allowing multiple systems to operate simultaneously in close proximity without interference. The mobile terminal can selectively connect to the intended system by presenting the correct authentication data, making it easy to identify and connect to the authorized system even when multiple systems are nearby.
3Reliability
If access authorization control is implemented, then reliability is improved, but device complexity deteriorates
Solution Approach 1:
The authentication system implements feedback mechanisms that guide the connection establishment process. The coordinate measuring machine and mobile terminal exchange status information and authentication results, providing clear feedback about connection status and authorization levels. This automated feedback loop simplifies the user interface and connection management while maintaining reliable access control, reducing the perceived complexity for end users.
Data Source
Figure 1
Figure 2A~2C
Figure 3
AI summary
The invention relates to a method and to a coordinate-measuring system (10) for securely and intelligently coupling and connecting a mobile terminal (14) to a coordinate-measuring device (12) arranged in a stationary manner, comprising: a coordinate-measuring device (12), which is arranged in a stationary manner and has: a measuring system (20); an evaluating and control unit (22) having a first data-processing unit (24); a first memory unit (26) for storing data, parameters, and programs; and a first transmitter/receiver unit (28) for wireless communication; and a mobile terminal (14), which is arranged so as to be physically separate from and movable in relation to the coordinate-measuring device (12) and which is designed for the operation of the coordinate-measuring device (12) and/or for the display of data of the coordinate-measuring device (12) by a user, wherein the mobile terminal (14) has: a second data-processing unit (30); a second memory unit (32) for storing data and programs; and a second transmitter/receiver unit (34) for wireless communication; wherein the coordinate-measuring device (12) and the mobile terminal (14) are designed to establish an authenticated wireless connection (16) for exchanging data between the coordinate-measuring device (12) and the mobile terminal (14); wherein an identifier, which uniquely identifies the coordinate-measuring device (12), and a dynamic first key (52) are associated with the coordinate-measuring device (12), wherein the dynamic first key (52) represents an access authorization and preferably also a degree of access authorization of the user, wherein different degrees of access authorization result in different first keys (52); and wherein the mobile terminal (14) is also designed to request the first key (52) from the user, wherein the first key (52) is used for authentication in the establishment of the wireless connection (16).