Radio Remote Control System for Building Closures
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Solution Overview
Problem
Current automatic building lock systems and radio remote control systems face challenges in ease of use, particularly in maintaining user comfort over extended operating times, especially when combining battery-operated and mains-powered components.
Innovation Solution
A radio remote control system with transmitters and receivers that switch between active and inactive phases, using preambles of varying lengths to optimize power consumption and response times, allowing for efficient operation of both battery-powered and mains-powered actuators with a single transmitter, while incorporating security features for command inheritance and copy protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single remote control transmitter is used to control both battery-operated and mains-powered receivers, then device complexity is reduced and ease of operation is improved, but the transmitter must accommodate varying preamble lengths which increases signal processing complexity
Solution Approach 1:
The transmitter dynamically changes the preamble length parameter based on the target receiver type. When controlling a battery-operated receiver, the transmitter uses a longer preamble to ensure reliable activation during the receiver's longer inactive phases. When controlling a mains-powered receiver, the transmitter uses a shorter preamble for faster response. This parameter adaptation allows a single transmitter to efficiently control multiple receiver types without requiring separate dedicated transmitters for each power source type.
2Reliability
If the preamble length is increased to ensure reliable activation of battery-operated receivers during their longer inactive phases, then reliability of activation is improved, but the response time for mains-powered receivers increases
Solution Approach 1:
The system dynamically adjusts the preamble length based on the operational characteristics of the target receiver. The transmitter is configured to use a longer preamble when addressing battery-operated receivers to guarantee activation during their extended inactive periods, while using a shorter preamble for mains-powered receivers to maintain fast response times. This dynamic adaptation of the preamble length parameter resolves the contradiction between ensuring reliable activation and maintaining fast response across different receiver types.
3Use of energy by moving object
If battery-operated receivers switch between active and inactive phases to save energy, then energy consumption is reduced and service life is extended, but the receiver may miss control signals during inactive phases
Solution Approach 1:
The transmitter sends a preliminary activation signal (preamble) before the actual control command to battery-operated receivers. This preliminary action serves to wake up the receiver from its inactive phase and prepare it to receive the subsequent control signal. The longer preamble duration ensures that even if the receiver is in the middle of its inactive phase when the signal is sent, it will be properly activated and able to receive the control command without missing it.
Data Source
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AI summary
In order to increase the convenience of the remote control of components of an automatic building closure system, the invention provides a radio remote control system (50) for building closure drives (30, 28, 34, 36, 38) and/or building closure actuators (14, 16) or other components of an automatic building closure system (10), comprising at least one remote control transmitter (52, 54, 56) and a first and a second remote control receiver (46, 48), wherein the remote control transmitter (52, 54, 56) is designed for transmitting a first remote control signal (62) for activating the first remote control receiver (46) and for transmitting a second remote control signal (64) for activating the second radio remote control receiver (48) in such a manner that the first and the second remote control signals (62, 64) each comprise a preamble (66, 68) and a command section (74), wherein the preamble (66, 68) for activating the radio reception readiness of the allocated remote control receiver (46, 48) and the command section contains command signal information to be received by the remote control receiver (46, 48), with the preambles (66, 68) of the first and the second remote control signals (62, 64) being of different length.