Lamp Control Circuit Non-Volatile Memory Wireless Updates
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Solution Overview
Problem
Current lamp control systems require complex and logistically challenging installation processes, as each lamp must be preprogrammed with unique settings before installation, and changing settings post-installation is difficult due to safety regulations that disconnect power from the lamp driving circuit.
Innovation Solution
A lamp control circuit with a communication circuit and a lamp driving circuit that uses a non-volatile memory to store lamp operating parameters, allowing settings to be programmed and updated without power, and enabling wireless communication for parameter transfer, even when the circuit is not powered, facilitating flexible and cost-effective installation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If lamp control circuits are preprogrammed with unique settings at the manufacturing site, then each lamp can be installed at the corresponding location according to a lighting plan, but the installation process becomes logistically complex and time-consuming
Solution Approach 1:
The patent applies preliminary action by storing lamp operating parameters in non-volatile memory at the manufacturing site, so that settings are prepared in advance but not hard-coded. This allows the lamp control circuit to be manufactured with the capability to store settings, and the actual programming can be deferred to installation time or later, eliminating the need for complex pre-programming logistics while maintaining the benefit of having settings ready when needed.
Solution Approach 2:
The patent implements dynamics by making the lamp control circuit reconfigurable after installation. The control circuit can receive and update operating parameters through wireless communication even after being installed and powered on. This dynamic capability allows settings to be changed adaptively based on actual installation conditions, traffic patterns, or maintenance requirements, eliminating the rigidity of pre-programmed systems.
2Adaptability or versatility
If lamp settings are changed after installation, then adaptive lighting control is enabled, but safety regulations require disconnection of supply voltage which makes setting updates difficult
Solution Approach 1:
The patent replaces the mechanical/electrical connection method with wireless communication. Instead of requiring physical access to the lamp control circuit during powered-off state for setting updates, the system uses wireless communication protocols to transmit operating parameters without any physical connection. This substitution eliminates the safety disconnection requirement while enabling seamless post-installation configuration changes.
Solution Approach 2:
The patent introduces wireless communication as an intermediary between the external environment and the lamp control circuit. This intermediary allows settings to be updated by transmitting data through the air without requiring direct electrical or physical contact with the powered-off circuit. The wireless intermediary bridges the gap between safety requirements and adaptability needs.
3Reliability
If non-volatile memory is used to store lamp operating parameters, then settings can be stored without supply voltage, but additional memory components are required in the lamp control circuit
Solution Approach 1:
The patent applies universality by integrating the non-volatile memory function into the existing lamp control circuit architecture. Rather than adding a completely separate memory subsystem, the design incorporates storage capability into the microcontroller or control IC that already exists in modern LED driver circuits. This multi-functional approach allows the same component to handle both control logic and parameter storage, minimizing additional complexity.
Solution Approach 2:
The patent merges the memory function with the lamp control circuit by integrating non-volatile storage into the control IC or microcontroller unit. This consolidation combines what would traditionally be separate components (control logic and data storage) into a single integrated unit, reducing the overall number of discrete components and simplifying the circuit design while maintaining the ability to store operating parameters without power.
4Ease of operation
If wireless communication is implemented for parameter transfer, then settings can be updated remotely without power connection, but communication circuitry is added to the lamp control circuit
Solution Approach 1:
The patent applies universality by making the communication circuit multi-functional. The wireless communication module serves multiple purposes: it transmits operating parameters to the lamp control circuit, receives status information from the lamp, enables remote diagnostics, and facilitates firmware updates. This multi-functionality justifies the added complexity by providing several benefits from a single communication subsystem.
Solution Approach 2:
The patent merges the communication function with the existing control circuitry by integrating wireless communication capabilities into the lamp control IC or microcontroller. Rather than adding a completely separate communication module, the design combines data processing, memory management, and wireless communication in a single integrated unit, minimizing the increase in device complexity while enabling remote parameter updates.
Data Source
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AI summary
In a method of driving a lamp using a lamp control circuit, the lamp control circuit comprises a communication circuit and a lamp driving circuit. The lamp driving circuit is configured to drive a lamp in accordance with a number of lamp operating parameters. The method comprises providing a lamp operating parameter to a memory of the communication circuit; providing a supply voltage to the lamp driving circuit; and supplying the lamp operating parameter from the memory to the lamp driving circuit. Then, driving the lamp by the lamp driving circuit corresponding to the supplied lamp operating parameter. In the lamp control circuit, the communication circuit comprises a memory and is configured to supply the lamp operating parameter to the lamp driving circuit, when the lamp driving circuit is supplied with a supply voltage. In an embodiment, the lamp operating parameter may be supplied to the memory when no supply voltage is supplied to the lamp control circuit.