Communications Device Intermittent Reception Timing Hold

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing fire alarm systems face delays in communication between devices due to overlapping communication timing, which can hinder the timely transmission of fire warnings across multiple sensors and the master device.

Innovation Solution

Implementing a communications device with intermittent reception capabilities, where transmission to the master device is put on hold during specific reception periods to avoid delays, allowing for prioritization of communication between devices and ensuring timely fire warnings are sent.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a communications device performs both communication with the master device and communication with other fire sensors simultaneously, then the device can maintain comprehensive communication coverage, but communication delays occur when timing overlaps

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidcommunication delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent segments communication into two distinct modes: intermittent reception mode for communicating with the master device, and continuous reception mode for communicating with other fire sensors. This segmentation allows the device to separate conflicting communication tasks into different operational states, preventing timing conflicts and ensuring reliable communication without delays.

Inventive Principle:

Principle #1Segmentation

2Use of energy by moving object

If the communications device uses intermittent reception to save power, then energy consumption is reduced, but communication timing becomes more complex and may cause delays

Engineering Contradiction:

Improvepower consumptionVSAvoidcommunication timing complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent implements dynamic switching between intermittent reception mode and continuous reception mode based on communication requirements. The device can adaptively change its reception behavior - using intermittent mode for power-saving during master device communication, and switching to continuous mode when需要及时 communicate with other fire sensors, thereby managing timing complexity while maintaining energy efficiency.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3451305B1Communications device, communications subsystem, and communications system

Publication Date: 2022.07.20 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Figure 1
Figure 2
Figure 3

AI summary

Disclosed herein are a communications device (2), a communications subsystem (20), and a communications system (10), all of which reduce the chances of communication with a first device (1) causing a delay in communication with a second device (2). A communications device (2) includes a communications unit (23) for performing transmission of a signal (SG3) to a master device (1) and one type of intermittent reception of intermittently carrying out a reception operation of receiving a signal (SG2) from another communications device (2). The communications unit (23) puts, when a timing to transmit the signal (SG3) to the master device (1) falls within a protection period (T3) defined with respect to a timing to carry out the reception operation, transmission of the signal (SG3) to the master device (1) on hold.