Sensor Array Identifier Assignment via Sequential Trigger
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Solution Overview
Problem
Existing sensor array systems for intrusion prevention, such as those used in fence oscillation detection, require complex and costly sensors with local processing units and voltage control devices for accurate sorting, leading to high complexity and expense.
Innovation Solution
A method of assigning unique identifiers to sensors in an array using a master-slave connection and sequential communication, where sensors are initially set with a first identifier, and then progressively assigned a unique identifier through a trigger signal and setting signal, eliminating the need for high-complexity sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If voltage control devices are equipped in each sensor to enable accurate sorting, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the voltage control device from each sensor and consolidates it into a single external device. This allows the sensors to be simpler while still achieving accurate sorting through the external control mechanism that sequentially adjusts voltages and reads sensor responses.
Solution Approach 2:
The patent introduces an external control unit as an intermediary between the simplified sensors and the sorting process. This control unit manages the voltage adjustments and reading sequences, enabling accurate sensor identification without requiring complex onboard voltage control circuits in each sensor.
2Measurement precision
If voltage control devices are equipped in each sensor to enable accurate sorting, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent extracts the expensive voltage control device from each sensor and consolidates it into a single external device. This significantly reduces the bill of materials and manufacturing cost for each sensor while maintaining the ability to perform accurate sorting through the external control mechanism.
Solution Approach 2:
The external control unit serves multiple functions: it controls voltage levels for sensors, manages the reading sequence, and facilitates the sorting process. This multi-functionality eliminates the need for each sensor to have its own dedicated voltage control circuit, reducing overall system cost.
3Measurement precision
If selective voltage adjustment is performed on each sensor, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a preliminary action by sequentially activating voltage control before reading each sensor. The external control unit adjusts voltages in a predetermined sequence and waits for sensor responses before moving to the next sensor. This systematic preliminary action enables accurate position identification while keeping the control logic organized and manageable.
Solution Approach 2:
The patent employs periodic action through sequential voltage adjustment and reading cycles. The external control unit repeatedly cycles through voltage adjustment and reading operations for each sensor in sequence. This periodic process simplifies the control architecture by using repetitive, structured operations rather than complex simultaneous control of multiple sensors.
Data Source
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AI summary
A method of assigning a plurality of unique identifiers to a plurality of sensors (2) of an array (1) of sensors (2) in signal communication with one another and with a control unit (4) via a predetermined connection (5), the sensors (2) being connected to each other according to a sequential order starting from the control unit (4); said method comprising the steps of: - temporarily setting a first identifier (A) in each sensor (2) of the array (1); - generating a trigger signal on the connection (5) by the control unit (4); - cyclically repeating the steps of: - receiving said trigger signal by a receiving sensor (2) of the array (1), said receiving sensor (2) being the sensor (2) closest to the control unit (4) according to the sequential order among the sensors set with the first identifier (A); - temporarily setting a second identifier (B) in said receiving sensor (2); - sending on the connection by the control unit (4) a setting signal containing a unique identifier directed to a sensor (2) of the array (1) set with the second identifier (B); - receiving by the sensor (2) of the array (1) set with the second identifier (B) the setting signal containing the unique identifier and changing the corresponding identifier from the second identifier (B) to the unique identifier; - propagating the trigger signal on the connection (5) by the sensor (2) that has received the setting signal containing the unique identifier.