Remote Control Instruction Transfer for Low-Latency Unmanned Devices
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Solution Overview
Problem
Existing remote control systems for unmanned devices face latency and overhead issues due to the need for constant communication of control instructions, particularly when performing complex tasks that require substantial data transfer and real-time sensor data processing.
Innovation Solution
A method and apparatus that selectively include instruction data items in response messages based on whether the requested items have been previously sent, allowing for dynamic adjustment of data quantity to avoid buffer overflow and reduce latency, including the option to send multiple items in a single message when the device buffer is empty and single items when the buffer is likely full.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control instructions are constantly provided to enable device operation and respond to changes, then the device can operate autonomously and complete missions, but latency and overhead issues occur due to substantial data communication
Solution Approach 1:
The patent extracts only the necessary control instructions from the substantial data communication stream. The control apparatus selectively determines which instruction data items to include in response messages based on device requests and current operational needs, rather than constantly transmitting all possible control data. This extraction approach reduces communication overhead and latency while maintaining the device's ability to complete missions.
Solution Approach 2:
The control apparatus prepares and selectively transmits control instructions in advance based on predicted device needs and current mission requirements. By anticipating which instruction data items will be needed and pre-positioning them in response messages, the system reduces latency when the device needs to respond to changing conditions, while avoiding unnecessary data transmission.
2Productivity
If multiple instruction data items are sent in response messages, then data transfer efficiency improves, but buffer overflow risk increases at the device
Solution Approach 1:
The patent implements a dynamic approach where the control apparatus adjusts the number of instruction data items included in response messages based on real-time assessment of device buffer status. The system dynamically determines whether to include one or multiple instruction data items in each response message, optimizing data transfer efficiency while preventing buffer overflow. This dynamic adjustment allows the system to adapt to changing communication conditions and device states.
Solution Approach 2:
The device provides feedback to the control apparatus about its buffer status and instruction data item needs. The control apparatus uses this feedback to selectively determine the appropriate number of instruction data items to include in response messages. This feedback mechanism enables the system to maintain high data transfer efficiency while reliably preventing buffer overflow by adjusting transmission based on actual device capacity.
3Reliability
If single instruction data items are sent in response messages, then buffer overflow is avoided, but communication overhead and latency increase
Solution Approach 1:
The system dynamically adjusts between sending single and multiple instruction data items in response messages based on device buffer status and communication conditions. When the device buffer has available capacity, the control apparatus sends multiple instruction data items to reduce communication overhead and latency. When the buffer is near capacity, it sends single items to prevent overflow. This dynamic strategy optimizes both reliability and communication efficiency.
Solution Approach 2:
The patent changes the parameter of instruction data item quantity in response messages based on system state. The control apparatus selectively includes one or multiple instruction data items depending on buffer status, device needs, and communication conditions. This parameter change allows the system to optimize the balance between preventing buffer overflow and minimizing communication overhead and latency.
4Adaptability or versatility
If substantial amounts of data are communicated between control apparatus and device, then complex missions can be executed, but communication overhead and latency increase
Solution Approach 1:
The patent extracts and transmits only the essential instruction data items needed for executing complex missions, rather than communicating all possible data. The control apparatus selectively determines which data items to include in response messages based on device requests and mission requirements. This extraction approach enables complex mission execution while reducing communication overhead and latency by eliminating unnecessary data transmission.
Solution Approach 2:
The control apparatus prepares instruction data items in advance for complex mission execution and selectively transmits them based on predicted device needs. By pre-positioning necessary control data and anticipating mission requirements, the system enables complex operations while minimizing communication overhead and latency that would occur with reactive data transmission.
Data Source
AI summary
Method and apparatuses for communicating instruction data items from a control apparatus to a device to be controlled are disclosed. The control apparatus receives a request for at least one instruction data item from a device and responds the request by sending a response message. The responding comprises selectively including at least one instruction data item in the response message based at least partly on determination whether the requested at least one data item has been sent before.