Linear Sensor Voltage Coding for Modular Leak Detection
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Solution Overview
Problem
Existing linear sensors for detecting liquid leaks in long pipelines or large areas face challenges in reliability, cost, performance, flexibility in installation, maintenance, and management, and are limited in their ability to cover larger and more varied areas.
Innovation Solution
A method for coding communication conductors in linear sensors using a central unit and multiple sensors connected in series, where information signals are coded by varying voltages on two communication conductors, allowing for voltage difference measurement and enabling a modular system with two-way communication, and includes a management module for identifying and transmitting unique identifiers and specific data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If linear sensors are connected in series to cover long lengths and large areas, then the detection coverage is improved, but the system complexity and difficulty in management increase
Solution Approach 1:
The system is divided into autonomous linear sensor nodes that can be individually identified and managed. Each sensor contains a management module with unique identifier, allowing the central unit to address and control specific segments of the detection line without managing the entire system as a single complex unit.
Solution Approach 2:
The communication conductors serve multiple functions: they transmit power, carry communication signals for identification and data exchange, and enable two-way interaction between sensors and the central unit. This multi-functionality reduces the need for separate dedicated systems for each function.
2Reliability
If traditional communication methods are used in linear sensors, then the system structure is simple, but the reliability and performance are insufficient
Solution Approach 1:
The system implements two-way communication where sensors can send detection data and status information to the central unit, and the central unit can send commands and configuration data to specific sensors. This feedback mechanism enables reliable monitoring and control, allowing the system to detect and respond to failures or anomalies.
Solution Approach 2:
The patent uses voltage level changes on communication conductors to encode digital information. By varying voltage parameters (high/low states), the system achieves reliable digital communication over the sensor network, improving signal integrity and reducing errors compared to analog methods.
3Adaptability or versatility
If more sensors are added to cover larger areas, then the detection capability is improved, but the cost and difficulty of installation and maintenance increase
Solution Approach 1:
Each linear sensor is designed as an independent, identical module with standardized connectors and communication protocols. This segmentation allows sensors to be manufactured using the same process, making them interchangeable and reducing installation complexity. Sensors can be added or removed from the detection line without affecting other components.
Solution Approach 2:
Sensors are pre-configured with unique identifiers and management modules during manufacturing. This preliminary configuration eliminates the need for complex field programming or calibration during installation, reducing both installation time and maintenance requirements.
4Productivity
If voltage-based coding is used on communication conductors, then the data transmission efficiency is improved, but the electrical complexity increases
Solution Approach 1:
The same communication conductors that provide power to the sensors are also used for data transmission. By encoding information through voltage variations on these existing conductors, the system achieves efficient communication without requiring separate dedicated signal wires, thereby reducing overall electrical complexity.
Solution Approach 2:
The management module in each sensor acts as an intermediary that translates between the voltage-coded signals on the communication conductors and the internal digital logic of the sensor. This intermediary function simplifies the interface between the communication medium and the sensor processing units.
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
Enhances the reliability and flexibility of liquid leak detection systems by improving performance, enabling coverage of larger areas, and facilitating easier installation, maintenance, and management through a modular and flexible network architecture.
Implementation Method 1
at least one information signal being coded by the central unit (8) by increasing voltage T on the first communication conductor, at least one information signal being coded by the central unit (8) by decreasing voltage T on the second communication conductor, reading of a voltage by the central unit by measuring the voltage difference between the two communication conductors
Data Source
Figure 1~2
Figure 3~4
AI summary
Disclosed is a method for coding communication conductors of a linear sensor belonging to a system, characterized in that the method comprises the following steps: - coding at least two information signals simultaneously as follows: at least one information signal being coded by the exchange (8) by increasing voltage T on the first communication conductor, at least one information signal being coded by the exchange (8) by decreasing voltage T on the second communication conductor, - the exchange reading a voltage by measuring the voltage difference between the two communication conductors.