The article describes the development of a wireless monitoring system for toxic and flammable gases control to solve the actual problem of gaseous environment automated control at hazardous production facilities. The architecture of the monitoring system is described, which consists of wireless gas analyzers with connected remote digital modules. The article deals with design and circuit solutions for the development of a gas sensors digital module, which includes: a microcontroller, a RS-485 transceiver, an integrated power supply based on a pulse converter, and a block with digital gas sensors. The principle of the combined protection against electrostatic and microsecond interference is considered, as well as the concept of digital gas sensors with sensing elements of various physical types. The developed module is to detect explosive and toxic gases in the atmosphere, and can be used in emergency prevention systems at the factory together with execution units.

Keywords: monitoring system, industrial safety, gas sensor, intelligent digital sensor, zigbee, microassembly, RS-485, toxic gas, explosive gas

The article describes the concept of the digital gas sensors for toxic and flammable gases used in portable gas analyzers and stationary systems for dangerous objects monitoring. The results of the development of the low-power digital gas sensor for determining the concentration of carbon monoxide are described. The structure of the analog sensitive element, as well as its sensitivity to various gases and ambient temperature, is considered. A structural and schematic solution of a digital gas sensor using operational amplifiers and a miniature microcontroller is presented. The algorithm of firmware of the microcontroller is considered, as well as the calibration process.

Keywords: Digital gas sensor, toxic gas, gas converter, carbon monoxide, gas analyzer, monitoring system, calibration process, gas generator

Nowadays the wide integration of automation resources is occurred in many domains of industry. One of the key aspects of this process is control automation for breaking up process on railways. Due to the fact that main element of railway yard is hump the Intellectualization of decision making processes becomes the key task in area of fault prediction during breaking up. The experience of fault effects elimination shows this task decision allows to reduce the financial and time costs for breaking up process. This paper proposes new algorithm for creation of theoretical base of the system for fault prediction. This algorithm is realized by hybrid methods, which combine different temporal models characterizing technological process of sorting of following cuts. Presented experimental arguments show integration of proposed methods is efficient in domain of railway nreaking up process

Keywords: breaking up process, hump yards automation, intellectualization of technological processes, fault detection, hybrid techniques, fuzzy temporal relations, reconstructed phase space

The article gives IT-companies and their software products review in the field of engineer analysis and calculation. The importance and intensive development of this sphere IT-companies through their works and service refining, that facilitates their new market segments introduction, is shown.

Keywords: CAE, engineering, intellectual property, IT-technology, software products, CAD

Identification of railway vehicles is relevant for the conversion from automatic control systems with manual data input to automatic modeling environment of train and vehicle. The most effective and economic inventory number recognition is optical recognition. But there is question about veracity in such technology. This paper represent the qualitatively new approach for optical recognition based on building integral robust constructive features of vehicles and allowed to significantly increase level of recognition veracity. Proposed technique investigated in introduction subject of automatic vehicle number recognition system (ARNV).  Computational experiments demonstrated relevance of proposed technique for using in optical recognition of vehicle numbers.

Keywords: Automatic systems, number identification, vehicle, optical recognition, ARNV, robust features