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Masquerading a Networked Embedded Computer as a Remote Object Using an Asynchronous Remote Object Protocol for a System With Small Servers
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AI
DOI：10.1109/TIM.2023.3265764.png)
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摘要
En 中文
There are increasing demands for making multiple sensors/devices accessible over a wireless local area network (WLAN) for measurement, control, and monitoring purposes. Such a system comprises a client and multiple small embedded computer-based servers deployed in remote places. To apply the advantage of distributed object models, such as Java Remote Method Invocation (RMI), the model cannot work on an embedded computer because it demands sufficient resources, including the processing power of the central processing unit, memory, and an operating system. The model provides synchronous operations using the Transmission Control Protocol/Internet Protocol with heavy overheads, which results in low throughput compared with the lightweight User Datagram Protocol. A simple asynchronous remote object protocol for embedded computers (eASROP) is designed and implemented to enable an embedded computer and its acquired data to masquerade as an RMI-compatible remote object on a server. The client is not blocked after it makes a remote method call to a server and can continue its job. The client can asynchronously receive a return object that contains status data and control data. The results of performance measurements obtained in experiments demonstrated that, for the eASROP on an embedded computer-based server (48 MHz), the extra execution time that the client experienced was 1.67%-15.4% of that for the RMI on a personal-computer-based server (3.1 GHz, four cores) on a WLAN.
Keyword:
Servers
TCPIP
Java
Protocols
Distributed databases
Delays
Wireless LAN
Asynchronous distributed object model
control and monitoring system
data acquisition system
distributed measurement
embedded computer
Java Remote Method Invocation (RMI)
sensor network
wireless local area network (WLAN)
期刊
IF:
5.9
论文数:
2.0W
被引数:
5.8W
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