Zdeněk Bradáč

Electric vehicles charger as a part of home area network

With increasing oil price and environment pollution, especially in large cities, electric vehicles are getting to be more interesting than they were several years ago. Using electric vehicles in cities and large agglomerations lead to less pollution caused by common cars combustion engines (nitrogen oxides, carbon oxides, dust particles). Electric vehicles are more considerate to the environment than traditional cars even when the energy produced by non-renewable energy resources is used for their charging. The lack of the infrastructure prevents electric vehicles spreading. This paper describes standards and ideas how to integrate electric vehicle charger to the home area network. Home area network is a local part of SmartGrid network usually situated in homes. All devices connected to this network should implement several specifications. Basic requirements to charger properties are summarized.

New Methods of Interconnection of Industrial Fieldbuses

Abstract Traditional way of interconnection of industrial fieldbuses is used for data acquisition and operator control. This type of interconnection is not suitable for realtime control as it usually uses MS Windows based software gateways that are not capable of real-time processing of information. To assure real-time data transfer it is necessary to use different principle of interconnection. This new approach is based on hardware gateways. Hardware gateways can transfer data in predictable time. At present time hardware gateways are already used to interconnect fieldbuses of different level. Our paper presents that it is possible to use hardware gateways to interconnect fieldbuses of same level.

Short Range Radio Data Transfer For Process Automation

Abstract Galvanic connection of sensors and actuators to the central control or measurement station is the most popular solution. There are lot of problems where is not possible to use standard metallic cable connection. In some cases is not possible to use cable connection (components are allocated on rotating elements or in hardto reach locations etc.), it is appropriate to realize interconnection by wireless radio communication network. For small range network (perimeter up to 100m) industrial Bluetooth standard can be applicable, where full Bluetooth stack and basic necessary functions have been defined. This standard also accepts requirements to assure high safety and security.

Localization techniques and nanoLOC TRX system

Abstract The aim of this paper is the test of wireless localization modules nanoLOC TRX. These modules shall be embedded into complex electronic system placed on fireman helmet. Through static anchors placed in the environment and possibly with cooperation with other similar systems, information about the fireman location is transferred to the base station. The theoretical part of this paper shows several localization methods and techniques in the following, nanoLOC TRX hardware and configuration is briefly described. The performance and reliability of modules is measured in the real environment. The paper shows test results and evaluation.

A10: Embedded sensors for automation

Abstract Contribution deals with recent development in smart sensors that are widely used all over automation projects. Authors present design and development of Internet oriented data concentrator as well as world first Internet oriented single pressure sensor with Ethernet 10BaseT interface, indicate and discuss problems with implementation of advanced communication technologies in industrial area. In the next part of the paper there are presented solutions of indicated problems by author’s own design and development. Second part of the paper deals with wireless technologies for automation purposes. Authors present a unique smart pressure sensor communicated by wireless Bluetooth technology with PDA and Smart Phone.

Development in Safety and Reliability of Programmable Devices and Systems

Abstract Functionality and reliability of automation projects are assumed automatically. On the other hand in the last time there are higher demands on increased fault tolerance as well as on the high reliability and safety in new automation projects, devices and systems. It is the reason that the contribution, seen as a tutorial, deal swith backgrounds of safety and high reliability of devices and systems for purposes of industrial informatics and automation of machines, production lines and technological processes. There are specified, explained, discussed and compare several international and national standards of keywords and definitions in the contribution. The main attention is given to the IEC, DIN and EN standards with consideration to their implementation into systems of industrial automation. In the second part of the contribution, there are presented representative solutions of safe programmable devices and systems. Generalization of basic conclussions, trends and future solutions are demonstrated on recent safe PLCs.