protocol

Important functions of the Internet of Things (IoT) concept include facilitating everyday life, increasing work efficiency and quality, energy saving, and more. Increasingly, data from "things" are transmitted to public communication networks and cloud services. Any objects in the physical world that can be assigned IP addresses and are capable of transmitting data can act as "things" in such a network. Various technologies and protocols are used for data transmission, with more than twenty currently available.

Наведено протоколи кешування web-трафіку. Описані основні їхні властивості, переваги та недоліки.

In this article were described the protocols caching web-traffic. The basic properties, advantages and lacks are described.

The problem of controlling the computer control system of multichannel lighting devices is considered. Basic means of lighting control systems are determited. Generalised structure system for controlling of multichannel lighting devices is developed. Expediency of use of trunk serial interfaces in such systems is substantiated. Efficiency of use of DMX protocol is subsnantiated and analysed. The structural scheme of multichannel lighting devices control system according to such a protocol and the general algorithm of system operation are considered.

The article considers architecture and algorithms of vending machines. Given of criteria to choosing a microcontroller for creating vending machine. Analyzes hardware interfaces used in vending technology. Shows advantages of using of AES and CRC hardware accelerators.