The paper constitutes a summary of the work carried out under the research project entitled The development of the method for marking and identi cation of the spots dangerous and of special importance for vision impaired persons in the big city with use of the wave-vibration markers. This article discusses key researches conducted during the project, including review of in uence of environmental sounds on orientation and mobility of blind and partially sighted people, results of vibration perception threshold measurement taken at the wrist of both hands, measurements of paraseismic vibrations and results of researches on annoyance, recognizability and easiness to learn of selected signals.
The article constitutes the continuation of the works realized under the research project entitled: The development of the method for marking and identication of the spots dangerous and of special importance for vision impaired persons in the big city with use of the wave-vibration markers. The consideration included the identication of the object (human), identication of the direction of movement (double barrier), wireless data transmission with the information on the dangerous area, stimulation of the vibration signal and the feedback of the system. This article presents the result of choice of the optimal solution regarding the installation of the system on the selected objects of the urban engineering and also presents the concept of the method of modelling of the shape of the zone that is used for marking of the dangerous spot.
The article presents the concept of a system for identification of dangerous areas in the urban area targeted at the people with visual dysfunction. The idea of the system is presented comprising the attempt of application of the wireless data transmission: IR -infra-red; BLUETOOTH; RFID. The consideration comprises also the identification of the object (human), identification of the movement direction (double barrier), wireless data transmission with data on the given dangerous area, excitation of the vibration information and the feedback of the system. Also the subject of optimal installation on the urban objects was discussed. The article is a realisation of the research task in the project called "The development of the method for marking of the dangerous areas and especially important places in urban area for visually impaired people with use of the wave-vibration markers".
The paper discusses the problem of thermal state of three-way catalytic converter depending on engine load with spark ignition fueled with gasoline and natural gas. The measurements on the test bench were performed, during which the temperature of the exhaust gases in the exhaust system was measured with the help of thermocouples, and at the same time, the track of the thermal state of the catalytic converter was monitored using thermo-vision camera. The stable work of engine with different rotation speed and values of load was considered together with transient states. The results of the measurements were presented in forms of charts and selected thermograms, qualitatively presenting the issue of thermal state of the catalytic converter.
This paper presents the conceptual design of tools integration for the dynamic creation of sound level distribution maps (acoustic maps) in a production hall with an employee position identification system. This solution allows for managing the working time of employees in a zone designated as dangerous. At the same time, it could eliminate the need to use personal dosimeters that do not accurately assess actual exposure to noise. The proposed method allows us to estimate the uncertainty assessment of human exposure to noise. Moreover, a large part of the solution is based on tools that do not require incurring licensing costs. The system is about to keep the simulation data of sound level distribution (acoustic maps) and time location of the employee in the database. The concept assumes the unification of a data storage system so that it could be possible to present it in any GIS system.
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