Data Reception Apparatus with Dual Processing Sections for IrSimple Error Detection
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Solution Overview
Problem
In one-way communication using the IrSimple standard, users face difficulties in determining if data reception has failed due to mismatched communication modes between the data transmission and reception apparatuses, as the data reception apparatus may not receive connection signals correctly, leading to unclear communication success or failure.
Innovation Solution
A data reception apparatus with a main processing section for standby mode connection signal reception and a sub processing section for receiving data signals in a different communication mode, along with a notification system to inform users of communication errors if the sub processing section receives data signals without the main processing section receiving the connection signal, utilizing a preamble detection circuit to recognize data signal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the data reception apparatus waits in standby state for connection signal, then it can receive connection signal correctly, but it cannot receive data signal if user directs transmission apparatus at delayed timing
Solution Approach 1:
The reception apparatus is divided into two processing sections: a main processing section that handles connection signals and a sub processing section that handles data signals. This segmentation allows the apparatus to independently monitor both connection signal reception status and data signal reception status, enabling it to detect mismatches between expected and actual reception states without compromising either connection reliability or operational flexibility
2Reliability
If the reception apparatus continues to wait for connection signal after missing it, then it maintains standby state, but the user cannot know whether communication error occurred
Solution Approach 1:
The notification section provides feedback to the user about communication status by displaying error information when a mismatch is detected between connection signal reception state and data signal reception state. This feedback mechanism transforms the previously invisible communication status into visible information, allowing users to understand whether communication errors occurred without losing communication status information
3Reliability
If the apparatus uses single processing section for both connection and data signals, then device complexity is low, but it cannot detect communication errors in one-way communication
Solution Approach 1:
The processing section is segmented into a main processing section for connection signals and a sub processing section for data signals. Each section independently processes its designated signal type and monitors its own reception status. This segmentation enables error detection capability while maintaining relatively simple device structure by assigning specific functions to each section rather than using a complex unified processing system
Data Source
AI summary
The data reception apparatus includes a main processing unit that waits in a standby state so as to be able to receive the connection signal that is transmitted in a first communication mode, and further receives, after reception of the connection signal, the data signal that is transmitted in a second communication mode that is different from the first communication mode; a sub processing unit that is provided in addition to the main processing unit, the sub processing unit being capable of receiving the data signal that is transmitted in the second communication mode; a notification unit that is capable of notifying information to a user; and a notification control unit that controls the notification unit so that the notification unit notifies a communication error to the user if the sub processing unit has received the data signal although the main processing unit has not received the connection signal.