IoT Detection Device Communication Profile for Collision-Free Transmission

Solution Overview

Problem

Inefficient media access control on communication channels in IoT devices leads to data collisions and loss, particularly in home and industrial automation, where inexpensive devices transmit data uncoordinatedly.

Innovation Solution

A detection device with a stored communication profile defining predetermined transmission times, allowing periodic data transmission and efficient access control, managed by a server entity, which can update the profile and assign identifiers for data assignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If inexpensive devices are used to detect physical quantities and transmit data without complex media access control, then device cost is reduced, but data collisions and data loss occur on the communication channel

Engineering Contradiction:

Improvedevice costVSAvoiddata transmission reliability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The system performs preliminary actions by pre-allocating transmission time slots to detection devices before actual data transmission occurs. The server entity assigns specific time windows to each device, allowing them to transmit data without collision. This preliminary organization of transmission rights eliminates the need for complex real-time media access control while maintaining data transmission reliability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The communication channel is segmented into distinct time slots, with each detection device assigned to specific time windows for data transmission. This temporal segmentation allows multiple inexpensive devices to share the communication channel without collisions, as each device transmits only during its allocated slot. The server entity manages this segmentation and can dynamically adjust time slot assignments.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If data are sent out in an uncoordinated manner by detection devices, then device complexity is reduced, but collisions and data loss occur on the communication channel

Engineering Contradiction:

Improvemedia access control complexityVSAvoiddata loss

Core Design Contradiction:

Device complexityVSLoss of information

Solution Approach 1:

A server entity acts as an intermediary between detection devices and the communication channel. Instead of each device independently managing media access control, the server entity receives data from devices during allocated time slots, manages transmission coordination, and handles data routing. This intermediary approach simplifies device complexity while preventing data collisions and loss through centralized coordination.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The server entity performs preliminary actions by pre-allocating transmission time slots to detection devices before actual data transmission occurs. This preliminary organization of transmission rights eliminates the need for complex real-time media access control while maintaining data transmission reliability.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If predetermined transmission times are assigned to detection devices, then media access control efficiency is improved, but system complexity increases due to communication profile management

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidcommunication profile management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

A server entity acts as an intermediary between detection devices and the communication channel. Instead of each device independently managing media access control, the server entity receives data from devices during allocated time slots, manages transmission coordination, and handles data routing. This intermediary approach simplifies device complexity while preventing data collisions and loss through centralized coordination.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary actions by pre-allocating transmission time slots to detection devices before actual data transmission occurs. The server entity assigns specific time windows to each device, allowing them to transmit data without collision. This preliminary organization of transmission rights eliminates the need for complex real-time media access control while maintaining data transmission reliability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3270603B1Detection device to detect a physical quantity

Publication Date: 2021.01.06 DEUTSCHE TELEKOM AG

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AI summary

The invention relates to a detection device (100) for detecting a physical quantity, comprising a detector (101) for detecting the physical quantity, wherein the detector (101) is configured to output data representing the physical quantity, a memory (103) in which a communication profile of the detection device (100) is stored, wherein the communication profile defines at least one predetermined transmission time for sending the data, the predetermined transmission time being assigned to the detection device (100), and a communication interface (105) configured to send the data at the predetermined transmission time via a communication network to a predetermined target network address.