PTT-to-Things Server for IoT Talkgroup Control

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Solution Overview

Problem

Current push-to-talk (PTT) and talkgroup systems are not integrated with the Internet of Things (IoT), limiting their ability to control IoT devices remotely and efficiently.

Innovation Solution

A PTT-to-Things Server is introduced, which assigns IoT devices to talkgroups, allowing action commands received over these talkgroups to control IoT devices by mapping the talkgroup to the appropriate IoT device and protocol, enabling control of IoT devices through PTT calls, even when no voice or data transmission is involved.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If PTT systems are integrated with IoT devices, then remote control capability is improved, but system complexity increases

Engineering Contradiction:
Improveremote control capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A PTT-to-Things server acts as an intermediary between traditional PTT radio systems and IoT devices. The server receives PTT transmissions, maps talkgroup IDs to IoT device identifiers, translates commands into appropriate protocols, and sends control signals to IoT devices. This mediator approach enables integration without requiring modifications to existing PTT radios or IoT devices, thus improving remote control capability while minimizing system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The PTT-to-Things server provides universal functionality by supporting multiple IoT device types and protocols through a single platform. It can map different talkgroups to various IoT devices (lights, locks, thermostats, etc.) and translate PTT commands into device-specific protocols, enabling one system to control diverse IoT devices without requiring separate integration solutions for each device type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If talkgroups are mapped to multiple IoT devices, then control versatility is improved, but mapping complexity increases

Engineering Contradiction:
Improvecontrol versatilityVSAvoidmapping complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system performs preliminary mapping configuration where talkgroup IDs are pre-associated with IoT device identifiers and control protocols in a configuration database. This advance setup eliminates the need for complex real-time mapping decisions during PTT operations. When a PTT transmission is received, the server simply looks up the pre-configured mapping for that talkgroup and executes the corresponding IoT device control, thereby achieving control versatility without operational complexity.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If PTT commands are translated to IoT protocols, then device compatibility is improved, but processing overhead increases

Engineering Contradiction:
Improvedevice compatibilityVSAvoidprocessing overhead
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The PTT-to-Things server performs preliminary configuration of protocol mappings during system setup, storing the relationship between PTT talkgroups and IoT device protocols in advance. This pre-configuration allows the server to quickly translate PTT commands to appropriate IoT protocols using pre-defined rules, minimizing real-time processing overhead while maintaining broad device compatibility.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The server uses template-based protocol translation where common IoT device protocols are pre-defined as templates. When a PTT command needs to be translated, the server copies and adapts the appropriate protocol template rather than generating commands from scratch, significantly reducing processing time and overhead while maintaining compatibility with various IoT devices.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP3662633B1Push to talk for the internet of things
Publication Date: 2021.05.19 MOTOROLA SOLUTIONS INC
  • EP3662633B1 patent drawingFigure 1
  • EP3662633B1 patent drawingFigure 2
  • EP3662633B1 patent drawingFigure 3

AI summary

A method and apparatus for PTT over IoT is described herein. During operation each IoT device will be assigned to a talkgroup. Some talkgroups may have a single IoT device assigned, and other talkgroups may have multiple IoT devices assigned. During operation, an action command is received over a first talkgroup and a first command type is issued to a first IoT device assigned to that talkgroup. A second action command is received over a second talkgroup and a second command type is issued to a second IoT device assigned to the second talkgroup.