HVAC Actuator Wireless Configuration for Master-Slave Mode Selection
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Solution Overview
Problem
Conventional actuators in building automation systems face challenges in configuring and communicating, particularly in master-slave configurations, especially when access is restricted or unclear, and require physical access for tasks like programming and diagnostics.
Innovation Solution
The implementation of an actuator with a mechanical transducer, input data connection, feedback data connection, and processing circuit that uses a master-slave detection signal to select operating modes and enables bi-directional wireless communication, allowing configuration and data exchange without physical access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If physical access to actuators is required for configuration and programming, then configuration can be performed, but access becomes difficult when actuators are mounted in confined spaces or sealed environments
Solution Approach 1:
The patent replaces physical mechanical access requirements with wireless communication capabilities. The actuator includes a wireless transceiver that enables configuration, programming, and diagnostics to be performed remotely without physical contact, substituting the mechanical access paradigm with electromagnetic communication.
Solution Approach 2:
The patent introduces a wireless communication intermediary (transceiver system) that mediates between the external configuration device and the actuator's internal processing circuit. This intermediary enables data exchange without requiring direct physical access to the actuator's circuit board or components.
2Ease of operation
If physical access to circuit board is required for programming, then device can be configured, but access becomes difficult when device is mounted in confined space or sealed environment
Solution Approach 1:
The patent replaces the mechanical access requirement for circuit board programming with wireless communication. The processing circuit receives programming data wirelessly through its transceiver, eliminating the need to physically access the circuit board even in sealed or confined environments.
Solution Approach 2:
The wireless transceiver provides multiple functions including configuration, programming, diagnostics, and data exchange, making the actuator universally accessible through wireless means regardless of its physical mounting environment or sealing status.
3Ease of operation
If master-slave configuration uses physical switches, then configuration can be performed, but it becomes challenging when access is restricted or proper configuration is unclear
Solution Approach 1:
The patent replaces physical switches with wireless communication for master-slave configuration. The transceiver system transmits and receives configuration signals wirelessly, providing clear indication of configuration status and enabling easy switching between master and slave modes without physical access or ambiguous switch positions.
Solution Approach 2:
The wireless configuration system provides feedback signals that clearly indicate the current operating mode (master or slave) and configuration status. This feedback mechanism eliminates the confusion that arises with physical switches by providing explicit wireless communication of the actuator's configuration state.
Data Source
AI summary
An actuator in a HVAC system includes a mechanical transducer, an input data connection, a feedback data connection, and a processing circuit. The processing circuit is configured to use a master-slave detection signal communicated via the feedback data connection to select an operating mode for the actuator from a set of multiple potential operating modes including a master operating mode and a slave operating mode. The processing circuit is configured to operate the mechanical transducer in response to a control signal received via the input data connection according to the selected operating mode.