Daisy Chain Multi-Vision ID Allocation via Switch Segmentation
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Solution Overview
Problem
Conventional multi-vision sets connected in a daisy chain form cannot identify a reference set and face limitations in automatically setting IDs, as the same ID is allocated to all sets due to interconnected communication lines, requiring manual counting of sets.
Innovation Solution
Incorporating first and second off switches at IR and RS-232 communication lines to block signals and allow sequential ID allocation, with a controller designating a reference set and transmitting ID increasing commands through bypassed communication lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple multi-vision sets are connected in a daisy chain form with interconnected communication lines, then the system can display images across multiple screens, but all sets receive the same ID allocation causing inability to identify reference set and limitations in automatic ID setting
Solution Approach 1:
The patent divides the communication line into two independent paths: an IR communication line for control signals and an RS-232 communication line for data transmission. This segmentation allows the reference set to be identified through IR signals while enabling sequential ID allocation through the RS-232 line, resolving the contradiction between multi-vision display capability and ID identification capability
Solution Approach 2:
The patent introduces a controller as an intermediary device that manages the communication between sets. The controller receives IR signals to identify the reference set, then uses the RS-232 communication line to sequentially allocate IDs to each set in the daisy chain, enabling both reference set identification and automatic ID setting without requiring manual intervention
2Reliability
If manual counting of multi-vision sets is performed for ID allocation, then unique IDs can be assigned, but the process is time-consuming and inefficient
Solution Approach 1:
The patent implements self-service ID allocation where the system automatically assigns IDs to each multi-vision set in sequence without requiring manual counting or configuration. The controller sequentially transmits ID values through the RS-232 communication line to each set in the daisy chain, enabling automatic identification and assignment that eliminates manual intervention and significantly reduces setup time
3Ease of manufacture
If the same ID is allocated to all multi-vision sets, then simple ID assignment is achieved, but the system cannot properly identify and control individual sets
Solution Approach 1:
The patent applies local quality by assigning unique ID values to each multi-vision set in the daisy chain. The controller sequentially allocates different ID values (e.g., ID 1 to the first set, ID 2 to the second set) through the RS-232 communication line, enabling each set to have its own distinct identifier. This allows the system to properly identify and control individual sets while maintaining ease of operation through automatic sequential allocation
Data Source
AI summary
The present invention relates to a multi-vision having a daisy chain type, capable of automatically setting an ID of each multi-vision set in a multi-vision where a plurality of sets are connected to each other in a daisy chain form, and an ID allocating method thereof. The multi-vision having a daisy chain type includes: a plurality of multi-vision sets; a first off switch provided at an IR communication line output port of each of the multi-vision sets, and configured to block an IR signal applied to each multi-vision set; series communication lines connected to the plurality of multi-vision sets in a bypass form; a second off switch provided at an output port of the series communication line of each multi-vision set, and configured to block an ID value which is to be bypassed to a next multi-vision set through the series communication line; and a controller configured to set an ID of a reference multi-vision set by blocking the first and second off switches, and configured to transmit an ID increased value to a next multi-vision set by releasing the blocked output state of the second off switch from the reference multi-vision set.