LoRa IoT Fireground Entry Control System
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Solution Overview
Problem
Current fire ground entry systems face challenges in real-time data transmission and communication, particularly in complex fire scenarios where wireless voice communication may be unavailable, and there is a need for a reliable and efficient method to monitor firefighter vital signs and environmental conditions.
Innovation Solution
A LoRa-based internet of things (IoT) platform for fire ground entry control, comprising LoRa Node terminals with integrated sensors and a LoRa Gateway&Server subsystem, enabling wireless communication through LoRaWAN and Wi-Fi/COFDM, with modules for vital sign monitoring, environment detection, navigation, and real-time data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional wireless communication technologies (Wi-Fi, Bluetooth) are used for fire ground entry control, then data transmission rate is high, but communication range is limited to tens of meters requiring higher deployment costs
Solution Approach 1:
The patent introduces LoRa technology as an intermediary communication solution that bridges the gap between short-range high-speed technologies and long-range low-speed technologies. The LoRa gateway acts as a mediator that receives data from firefighter terminals using LoRa's long-range capability and forwards it through IP networks to command centers, enabling city-wide coverage while maintaining adequate data transmission for monitoring applications.
2Speed
If traditional wireless communication technologies are used, then data transmission rate is high, but power consumption is high requiring sufficient power supply
Solution Approach 1:
The patent applies parameter changes by selecting different communication technologies for different data transmission requirements. For continuous monitoring data (vital signs, environmental parameters), LoRa is used with low data rate and low power consumption. For high-priority alerts and commands, the system can switch to higher data rate modes if available, optimizing the balance between transmission speed and power consumption based on operational needs.
3Loss of time
If fire ground entry systems use conventional communication methods, then real-time data transmission is achieved, but reliability is insufficient in complex fire scenarios where wireless voice communication may be unavailable
Solution Approach 1:
The patent implements a multi-functional communication system that can operate across different network types. The firefighter terminal and command center are equipped with multiple communication interfaces (LoRa, Wi-Fi, cellular, satellite) that can automatically switch or work in combination. This universal communication capability ensures that at least one communication path remains available even in complex fire scenarios where conventional wireless voice communication may fail.
4Area of stationary object
If LPWAN with long range is used for fire ground entry control, then communication range is extended to kilometers, but data transmission rate becomes low
Solution Approach 1:
The patent segments the communication system into two parts: LoRa for long-range, low-power transmission of critical monitoring data (vital signs, environmental parameters, location), and IP-based networks (Wi-Fi, cellular, satellite) for higher-rate transmission of detailed information when available. This segmentation allows the system to leverage the strengths of each communication technology without being constrained by their individual limitations.
Data Source
AI summary
A system and a method for fire ground entry control based on internet of things are provided. The system includes a fire ground entry Node subsystem, a fire ground entry LoRa Gateway&Server subsystem and a monitoring and controlling subsystem, where the fire ground entry Node subsystem includes multiple LoRa Node terminals, each user entering a fire ground is equipped with a LoRa Node terminal, and each LoRa Node terminal includes a LoRa antenna and a Wi-Fi antenna; the fire ground entry LoRa Gateway&Server subsystem includes a LoRa Gateway chip, a LoRa Server chip, a LoRa antenna, a Wi-Fi antenna and a battery pack, and the LoRa Gateway chip and the LoRa Server chip are integrated into a whole body; and the monitoring and controlling subsystem monitors the fire ground entry Node subsystem and the fire ground entry LoRa Gateway&Server subsystem.