Smart Grid Address-Based Emergency Location System
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Solution Overview
Problem
Current social safety network systems face high initial investment costs and accuracy issues, particularly in closed spaces like cities and buildings, due to the need for extensive infrastructure and signal interference, which hinders effective location detection and emergency response.
Innovation Solution
An address-based social safety network system utilizing a portable location information terminal, digital energy meter, and positioning server, which transmits emergency signals via RF modem, calculates wireless receiving strength, and uses GPS for accurate location tracking, integrating with existing smart grid infrastructure to reduce costs and enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GPS system is used for location detection, then location detection can be performed in open spaces, but normal functions cannot work in closed spaces like city areas or buildings due to radio interference
Solution Approach 1:
The patent segments the location detection function into two parts: GPS for open space detection and a ground-based relay station system for closed space detection. Each segment operates independently in its suitable environment, with the relay station system specifically designed to handle GPS-failure scenarios in urban canyons and buildings.
Solution Approach 2:
The patent introduces relay stations as intermediary devices between the mobile terminal and the location detection system. These relay stations receive signals from mobile terminals in closed spaces and forward them to the location detection server, enabling location detection where direct GPS signals cannot penetrate.
2Measurement precision
If relay installation density is increased to improve location detection accuracy, then accuracy improves, but initial investment cost increases proportionally
Solution Approach 1:
The patent designs relay stations that serve multiple functions: they act as communication relays for location detection, provide wireless access points for data transmission, and can function as emergency response nodes. This multi-functionality reduces the need for dedicated infrastructure solely for location detection.
Solution Approach 2:
The patent implements dynamic adjustment of relay station density based on location accuracy requirements and signal propagation conditions. In areas with poor GPS reception or high accuracy requirements, relay stations are deployed more densely, while in open areas with good GPS coverage, deployment is sparser, optimizing the balance between cost and performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly reduces initial investment costs while improving location detection accuracy in various environments, including closed spaces, by leveraging existing smart grid infrastructure and advanced communication networks.
Implementation Method 1
transmits emergency signals via RF modem
Implementation Method 2
calculates wireless receiving strength
Implementation Method 3
uses GPS for accurate location tracking
Data Source
AI summary
The present invention provides an address-based social safety network system of a smart grid infrastructure device, the address-based social safety network system comprising: a potable location information terminal for transmitting an emergency signal through a RF modem when an emergency signal generation command is inputted; a digital energy meter which calculates an average value of wireless reception strength of the emergency signal received from the portable location information terminal and then transmits the calculated average value to an upper end; a collection device which collects the emergency signal received from the digital energy meter, and which transmits the collected emergency signal to the upper end; and a positioning server which collects the emergency signal received from the collection device, and which tracks location information of the portable location information terminal by using the wireless receiving sensitivity and an intrinsic identification address of the digital emergency meter.