State Detection Circuit Timing for Fast Fault Alerts
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Solution Overview
Problem
Existing state detection apparatuses face challenges in reducing the time between detecting an abnormal state and transmitting the detection result while minimizing power consumption, as shortening the detection-to-transmission time increases power consumption and vice versa.
Innovation Solution
A state detection apparatus comprising a communication circuit, a control circuit, a battery, and a first explosion-proof barrier, where the control circuit applies a test signal to the contact circuit via the explosion-proof barrier at a shorter interval than the communication circuit's operating timing, allowing for immediate detection signal acquisition and transmission to an external apparatus, thereby reducing the detection-to-transmission time without increasing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the communication circuit operates at a shorter interval to reduce detection-to-transmission time, then the response speed improves, but the power consumption increases
Solution Approach 1:
The control circuit applies a test signal to the contact circuit at a second timing that arrives at a shorter interval than the first timing (communication circuit operating interval). This preliminary detection action allows the system to detect abnormal states more frequently without requiring the communication circuit to operate more frequently, thus reducing detection-to-transmission time while maintaining reduced power consumption.
Solution Approach 2:
The patent separates the detection function from the communication function by using two different timing intervals. The test signal application (detection) operates at a shorter interval (second timing) while the communication circuit operates at a longer interval (first timing). This segmentation allows independent optimization of detection speed and power consumption.
2Speed
If the test signal application interval is shortened to improve detection speed, then the response time improves, but the battery power consumption increases
Solution Approach 1:
The control circuit applies a test signal to the contact circuit at a second timing that arrives at a shorter interval than the first timing. This preliminary detection action allows the system to detect abnormal states more frequently without requiring the communication circuit to operate more frequently, thus reducing detection-to-transmission time while maintaining reduced power consumption.
Solution Approach 2:
The patent uses periodic action with two different periods: the communication circuit operates periodically at the first timing (longer interval), while the test signal application operates periodically at the second timing (shorter interval). This allows the system to balance detection speed and power consumption by having the higher-frequency operation only for detection, not for communication.
Data Source
AI summary
A state detection apparatus includes a communication circuit that transmits information to an external apparatus, a control circuit that operates the communication circuit at a first timing, a battery that supplies electric power to the communication and control circuits, and a first explosion-proof barrier connected between a contact circuit and the control circuit. The control circuit applies a test signal, generated based on voltage from the battery, to the contact circuit at a second timing arriving at shorter intervals than the first timing, acquires a detection signal indicating current flow in the contact circuit due to test signal application, and regardless of the first timing, operates the communication circuit when the detection signal is acquired to transmit to the external apparatus that the state of a device connected to the contact circuit is abnormal.