A high-concurrency communication method and system for proactor mode in a smart lighting system

Abstract

The invention discloses a high-concurrency communication method using Proactor mode in a smart lighting system, establishes a communication class CmultiServer based on a kernel event notification mechanism Proactor mode, and the communication class CmultiServer encapsulates unified member variables and member methods; based on asynchronous, event-driven and Callback function, providing event loop and I / O-based callback mechanism; using asynchronous, event-driven, callback function programming style, providing event loop and I / O-based callback mechanism. This class encapsulates uniform member variables and member methods for different operating systems; logically sorts each device, designs Hash storage methods, and stores data efficiently and accurately. It can establish Tcp connection to thousands of data terminals, maintain the status, take data and issue control commands, and realize high concurrent communication in the Proactor mode of the interface communication layer of the landscape lighting system.

Description

technical field [0001] The invention relates to the field of landscape lighting control systems and is applied to landscape lighting systems. Background technique [0002] With the development of urbanization and the construction of regional lighting such as landmark buildings and urban landscape belts, the urban landscape lighting control system has developed rapidly, from the lighting control of a single building to the integrated lighting control of the park. The integrated control of landscape lighting in natural scenery belts (such as along the Pearl River) is also under construction. The traditional lighting system facing a single building cannot meet the needs. The new landscape lighting system combines three-remote power distribution monitoring and landscape lighting control into one. It adopts a three-layer control architecture of master control, sub-control, and equipment to collect all information in the landscape area in real time. Building lighting and energy c...

AI Technical Summary

Problems solved by technology

[0007] The TPC model is a stable and monitorable communication model, usually creating an independent process for each client, but as the system scale increases, when the number of connections exceeds one thousand, due to the excessive number of processes, the management Expensive to monitor and monitor, poor maintainability

The operating system kernel spends a lot of time context switching, managing and scheduling these threads takes more time than the thread execution itself

[0008] The select model is limited by the maximum number of open descriptors (FD_SETSIZE) of the process. The linux2.6 version is 1024. For tens of thousands of user connection requests, even if the parameters are modified to forcibly increase FD_SETSIZE, the efficiency of select scanning drops rapidly, resulting in Decreased communication efficiency

[0009] Multiplexing technologies such as Poll and epoll models are not efficient in processing control information when a single process handles a large number of Tcp connections, and often require multiple threads, which increases the complexity of system management and active-standby redundancy.

[0010] In some landscape lighting control systems, the communication networks of the existing building access systems are not the same, there are optical fiber dedicated networks, public networks, 4G wireless networks, etc., and the communication status and stability of various networks are also very different, such as The stability and efficiency of the fiber-optic private network are very high, the public network is affected by the communication peak, the link stability of the 4G wireless network is not high, and the communication link is frequently disconnected

The interface communication technology of the traditional monitoring system is not suitable for such a complex network environment

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