Bidirectional IR Data Transmission for Medical Tables
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Solution Overview
Problem
Current IR data transmission methods between medical treatment tables and operating devices are primarily one-way and do not allow for continuous user guidance, as feedback from the table to the device is not possible during operation, leading to incomplete status information display.
Innovation Solution
Implementing a method where IR data blocks are transmitted in pauses between data blocks of the other participant, with synchronized waiting times to avoid collisions and prioritize operation device commands over status feedback, using higher carrier frequencies to reduce interference, and including identification codes within data blocks for participant recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one-way IR data transmission is used from operating device to operating table, then device complexity is reduced, but loss of information occurs as feedback cannot be transmitted
Solution Approach 1:
The patent implements periodic bidirectional data transmission where the operating device transmits command data blocks and the operating table transmits status data blocks in alternating periodic intervals. This allows both directions of communication to occur systematically without requiring complex simultaneous transmission mechanisms, thus maintaining relatively simple device architecture while enabling complete information exchange including feedback.
2Loss of information
If simultaneous bidirectional IR data transmission is implemented between operating table and operating device, then loss of information is reduced by enabling continuous feedback, but object-generated harmful factors increase due to signal collisions and interference
Solution Approach 1:
The system uses periodic alternating transmission where one participant transmits during its designated time slot and the other listens, then they switch roles in the next period. This converts potentially harmful simultaneous transmission into controlled sequential transmission, eliminating signal collisions while maintaining continuous bidirectional communication capability.
Solution Approach 2:
Before each data transmission, the system performs preliminary actions including sending synchronization signals and checking transmission medium availability. This preliminary preparation ensures that when actual data blocks are transmitted, the channel is ready and no collisions will occur, thus preventing harmful interference before it can happen.
3Reliability
If data transmission checks are performed before each data block send, then reliability of data transmission is improved by avoiding collisions, but loss of time increases due to waiting periods
Solution Approach 1:
The system performs transmission medium checks and synchronization signal exchanges as preliminary actions before actual data blocks are sent. By completing these checks in advance during designated synchronization periods, the system ensures reliable collision-free transmission while minimizing waiting time during critical data transfer phases, as the channel status is already known.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous user guidance by allowing quasi-simultaneous communication and increased interference immunity, ensuring that user feedback and status information are displayed in real-time during operation, while minimizing interference from external sources.
Implementation Method 1
transmit its data blocks as IR signals
Implementation Method 2
receive IR signals from the other participant
Data Source
Figure 1
Figure 2~4
AI summary
A method and a device for bidirectional IR data transmission between a medical treatment table, in particular operating table 10a to 10d, and an operating device 12a to 12d, which are participants in the IR data transmission and each comprise an IR transmitter and an IR receiver, wherein the data to be transmitted by a participant 10a to 10d, 12a to 12d is divided into data blocks which are sent one after the other, with a pause being observed between the sending of the individual data blocks, and in which data from another participant is sent within the pauses.