Assa Abloy has been granted a patent for an automatic door operator that saves energy and increases the main control circuit’s lifetime. The system includes a standby power switching circuit that controls the electric current flow based on a switching signal, optimizing energy efficiency during door operations. GlobalData’s report on Assa Abloy gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Assa Abloy, Intelligent access control was a key innovation area identified from patents. Assa Abloy's grant share as of May 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Energy-saving automatic door operator with extended main control circuit lifetime
A recently granted patent (Publication Number: US12000197B2) discloses an automatic door operator system that includes a main control circuit, an actuating unit for torque output, and a transmission device to drive door leaf movement. The system features a DC power supply providing voltage to the main control circuit and a standby power switching circuit that controls the flow of electric current between the power supply and the main control circuit based on a switching signal. This switching signal triggers the actuating unit to move the door leaf during door opening or closing operations within a preset time period.
Furthermore, the automatic door operator system includes a complex standby power switching circuit with various sub-circuits such as a signal source sub-circuit, delay sub-circuit, control signal sub-circuit, and DC switching sub-circuit connected in series. These sub-circuits work together to ensure efficient control of electric current flow between the power supply and the main control circuit. Additionally, the patent also covers a method for driving the automatic door operator system, involving acquiring a switching signal, controlling the electrical current flow based on the signal, and enabling the main control circuit to operate the actuating unit for door leaf movement through the transmission device. The method emphasizes the importance of trigger level signals in determining the flow of electric current and the timing for cutting off the current after a specific time period has elapsed.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
