Wireless Sensor Position Control for Low-Power Communication

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Solution Overview

Problem

Existing sensor systems for machine tools face inefficiencies in power consumption and communication management, particularly when the position of wireless communication sensors changes, leading to unnecessary energy usage and potential errors in communication status transitions.

Innovation Solution

A sensor system with wireless communication sensors and a controller that detects position changes, switching communication states from a low-power state to a higher power state only when necessary, by defining specific ranges and conditions, thereby optimizing power consumption and reducing errors in communication status transitions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wireless communication is continuously maintained in a high-power state, then communication reliability is improved, but electric power consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidelectric power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The wireless communication module dynamically transitions between first state (low power consumption) and second state (high power consumption) based on real-time position detection results, rather than maintaining a fixed communication state. This dynamic adjustment resolves the contradiction by adapting power consumption to actual communication needs.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the communication state parameter (power consumption level) based on position parameter changes. When the sensor moves from a first position to a second position, the communication module transitions from first state to second state, optimizing the balance between communication reliability and power consumption.

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If wireless communication is frequently switched between power states, then power consumption is reduced, but communication status transition errors increase

Engineering Contradiction:

Improveelectric power consumptionVSAvoidcommunication status transition accuracy

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The position detection is performed in advance to determine whether communication state transition is necessary, preventing unnecessary transitions and their associated errors. The system proactively checks position conditions before switching communication states.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses position detection feedback to control communication state transitions. The controller continuously monitors position information and uses this feedback to make informed decisions about when to transition communication states, reducing erroneous transitions.

Inventive Principle:

Principle #23Feedback

3Use of energy by moving object

If position-based communication control is implemented, then power consumption is optimized, but system complexity increases

Engineering Contradiction:

Improveelectric power consumptionVSAvoidsystem complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The controller performs multiple functions: it controls the wireless communication module's power states and also processes position detection results to make control decisions. This multi-functionality reduces the need for separate dedicated components, minimizing system complexity while achieving power optimization.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The position detection function and communication control function are merged into an integrated system where the controller handles both position monitoring and communication state management, reducing overall system complexity despite the advanced control logic.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20220288739A1Sensor system, wireless terminal, and wireless communication apparatus

Publication Date: 2022.09.15 KYOCERA CORP

AI summary

A sensor system may include a base, one or more wireless communication sensors attached to the base, and a wireless communication apparatus that performs wireless communication with the wireless communication sensors. The wireless communication sensors may include a sensor that detects a position of the wireless communication sensor, a wireless communication module that performs wireless communication with the wireless communication apparatus, and a controller that controls the sensor and the wireless communication module. The controller, when the position of the wireless communication sensor, detected by the sensor, satisfies a predetermined condition, may change a status of wireless communication between the wireless communication module and the wireless communication apparatus from a first state to a second state in which an electric power consumption of the wireless communication module is greater than in the first state.