Wireless Serial Control Signaling for Low-Delay Synchronized Units
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Solution Overview
Problem
Conventional packet transmission methods in electronic systems face challenges in achieving both low delay and high transmitting rate simultaneously, leading to shifting control timings and improper operation of controlled units.
Innovation Solution
An electronic system that generates control signals in parallel, multiplexes them into a chronologically continuous serial signal, and transmits it wirelessly, ensuring synchronized control signals are maintained through continuous transmission, allowing for real-time operation of control target apparatuses like motors with low delay and high transmitting rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If packet transmission is used to transmit control signals wirelessly, then wireless control can be achieved, but control timing synchronization deteriorates and operation becomes improper
Solution Approach 1:
The patent applies continuous transmission of serial control signals instead of intermittent packet transmission. The controller continuously transmits control signals for multiple controlled units in serial form, ensuring that timing synchronization is maintained throughout the transmission process. This continuous action eliminates the timing shifts that occur with packet-based transmission, where signals are sent in discrete bursts that can arrive at different times.
2Loss of time
If frame is shortened to decrease delay, then delay is reduced, but transmitting rate decreases
Solution Approach 1:
The patent merges multiple control signals for different controlled units into a single continuous serial transmission stream. Instead of transmitting separate packets for each controlled unit (which would require multiple transmissions and increase delay), the system combines all control signals into one continuous serial flow that is transmitted in chronological order. This merging allows the system to achieve low delay without sacrificing transmitting rate, as the continuous stream efficiently utilizes the transmission channel.
3Productivity
If frame is elongated to maintain transmitting rate, then transmitting rate is maintained, but delay increases
Solution Approach 1:
The patent segments the transmission approach by sending control signals in a serial sequence rather than grouping them into large frames. Each control signal is transmitted immediately after the previous one in chronological order, avoiding the need to wait for large frame transmissions. This segmentation of the transmission process into smaller, sequential units maintains high transmitting rate while minimizing delay, as each control signal is transmitted and can be processed sooner rather than waiting for the entire frame to be sent.
Data Source
AI summary
According to one embodiment, in electronic apparatus, controller generates first and second control signals to control first and second controlled unit. First serial converter multiplexes the first and second control signals into first serial signal. First wireless transmitter transmits the first serial signal by first wireless signal in a chronologically continuous manner. First wireless receiver receives the first wireless signal. First parallel converter separates the first and second control signals from the first wireless signal received by first wireless receiver, to output the first control signal to first controlled unit, and to output the second control signal to second controlled unit.