Automatic Door Operator Standby Power Switching for Lower Idle Drain
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Solution Overview
Problem
Automatic door operators waste power and reduce their circuit lifetime due to continuous operation in standby mode, consuming energy to receive external switching signals and transmit control commands.
Innovation Solution
An automatic door operator with a standby power switching circuit that cuts off electric current between the DC power supply and the main control circuit after a preset time period when the switching signal disappears, ensuring the main control circuit is powered off during standby, and only powered on when receiving a switching signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main control circuit operates continuously in standby state to receive external switching signals and transmit control commands, then the automatic door operator can respond to switching signals in real time, but power consumption increases and circuit lifetime is reduced
Solution Approach 1:
The main control circuit operates periodically rather than continuously. It switches between an operating state (receiving signals and transmitting commands) and a standby state (low power consumption). The circuit is activated only when needed and remains dormant otherwise, achieving periodic operation that reduces power consumption while maintaining response capability.
2Reliability
If the main control circuit operates continuously in standby state, then the automatic door operator can maintain readiness for control operations, but the circuit lifetime is reduced due to prolonged operation
Solution Approach 1:
The main control circuit is activated periodically only when control operations are needed, rather than operating continuously. This periodic activation extends the circuit's operational life by reducing the total operating time while maintaining the system's readiness to perform control functions when required.
3Use of energy by moving object
If the standby power switching circuit cuts off electric current after preset time period, then power consumption is reduced and circuit lifetime is extended, but the main control circuit cannot respond immediately to switching signals
Solution Approach 1:
The standby power switching circuit is pre-configured with a preset time period delay. When a switching signal is detected, the circuit automatically activates the main control circuit after the preset time period has elapsed. This preliminary setup allows the system to balance power savings with timely response by using the delay mechanism to trigger activation at the appropriate moment.
Data Source
AI summary
An automatic door operator is disclosed, including a main control circuit, an actuating unit configured to output torque, and a transmission device. The main control circuit controls operation of the actuating unit to drive a movement of a door leaf through the transmission device. The automatic door operator further includes: a DC power supply configured to supply a DC voltage VDD to the main control circuit; and a standby power switching circuit, connected in series between the DC power supply and the main control circuit, and configured to acquire a switching signal and conduct, or cut off after a preset time period Δt has been elapsed, electric current between the DC power supply and the main control circuit according to the switch signal. A method for driving the automatic door operator is also disclosed. The present disclosure realizes the purpose of saving energy and electricity of the automatic door operator, while increasing the lifetime of the main control circuit.