Light Unit Control Circuit Using Address Pins for Binning Detection
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Solution Overview
Problem
Existing circuit arrangements for controlling light units are inefficient in recognizing and accommodating light modules with different binning classes, leading to logistical challenges and increased costs due to the need for additional pins and connectors for detection.
Innovation Solution
A circuit arrangement that utilizes the existing address interface to identify binning classes without additional pins, using a microcontroller to read the indexation interface, compare with a lookup table, and determine the operation mode of light controllers based on non-indexation addresses, allowing cost-effective recognition of binning classes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional pins and connectors are used for detection of binning classes, then the reliability of binning class identification is improved, but the device complexity and manufacturing costs increase
Solution Approach 1:
The patent reuses the existing indexation interface address pins, which were originally designed for addressing light controllers, to also encode binning class information. This multi-functional use of the same hardware resources eliminates the need for separate detection pins while maintaining reliable binning class identification. The address pins serve dual purposes: controller addressing and binning class encoding.
Solution Approach 2:
The light controller itself provides the binning class information through its address interface without requiring external detection hardware. The binning class is encoded in the address space that the controller already uses for its operation, making the system self-sufficient for identification purposes.
2Measurement precision
If additional pins and connectors are used for detection of binning classes, then the measurement precision of binning class is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The existing address pins are made multi-functional to also carry binning class information, eliminating the need for additional manufacturing steps and components. This approach maintains precise binning class detection while simplifying the manufacturing process by reusing existing hardware.
Solution Approach 2:
The patent merges the binning class detection function with the existing address interface functionality. By combining these two functions into a single hardware interface, the manufacturing process is simplified as fewer components need to be produced and assembled.
3Adaptability or versatility
If the address space is fully utilized for light controller designation, then the adaptability of the system is improved, but the ability to identify binning classes deteriorates
Solution Approach 1:
The address space is segmented into two functional parts: indexation addresses for light controller designation and non-indexation addresses for binning class encoding. This segmentation allows both controller addressing and binning class identification to coexist within the same address interface without interfering with each other.
Solution Approach 2:
The patent adds a new dimension of information encoding by utilizing the non-indexation addresses in the address space. This effectively creates an additional information channel within the existing address interface, allowing binning class data to be transmitted without reducing the controller addressing capability.
4Loss of information
If non-indexation addresses are used for binning class encoding, then the loss of information is reduced, but the device complexity increases
Solution Approach 1:
The binning class information is pre-encoded into the address space during system initialization or configuration. The microcontroller reads this pre-encoded information from the non-indexation addresses and uses it to determine the appropriate operation mode, eliminating the need for complex real-time analysis during operation.
Solution Approach 2:
The patent uses a lookup table that stores the mapping between non-indexation addresses and binning classes. This copying approach allows the microcontroller to quickly retrieve binning class information through simple table lookup rather than performing complex calculations, reducing processing complexity.
Data Source
AI summary
Circuit arrangement (1) for identifying the binning-class/es of at least one light unit (2) and for controlling the at least one light unit (2) in dependence of its binning class, wherein the circuit arrangement (1) comprises at least one microcontroller (6), and at least one light unit (2), the light unit (2) comprises at least one light module (3a, 3b), wherein each light module (3a, 3b) is classified by a binning class, said binning class representing radiation characteristics of its light sources (4), at least one light controller (5a, 5b), the microcontroller (6) being configured to select a specific operation mode (A, B, C, D, . . . ) and to configure the light controller (5a, 5b) accordingly to adjust the light emission radiated by the at least one light module (3a, 3b) in dependence of its binning class.