Bulletin of the Military University of Technology最新文献_第2页

Concept of anti-collision algorithm for unmanned aerial vehicles 无人机防碰撞算法的概念

Bulletin of the Military University of Technology Pub Date : 2022-09-30 DOI: 10.5604/01.3001.0053.6747

Sebastian Tatko, S. Konatowski

{"title":"Concept of anti-collision algorithm for unmanned aerial vehicles","authors":"Sebastian Tatko, S. Konatowski","doi":"10.5604/01.3001.0053.6747","DOIUrl":"https://doi.org/10.5604/01.3001.0053.6747","url":null,"abstract":"The basis of the novel anti-collision algorithm is a software implementation that allows theUAV to avoid collisions with environmental obstacles, as well as with other flying objects. The paperuses simplified equations describing the dynamics of the quadcopter to facilitate the modelling ofthe simulation structure. The software implementation of the quadcopter model together with thecontroller is the basis for the operation of the anti-collision algorithm. The model control system usesa three-stage proportional-integral-differential controller. The inspiration of the resulting program ismagnetic interaction. The obstacle avoidance algorithm is based on the measurement of angular valuesand the selection of a proportional virtual force. The force repelling a quadcopter from an obstacle isa parameter that depends on its linear velocity, bearing on the obstacle and distance to the obstacle.The heat maps obtained reflect the scaling of the value and direction of the repulsive force. Afterdefining the target point and the position of the obstacle, the necessary parameters are measured andthe collision course correcting coordinates are selected on-board the quadcopter. The flight parametersof the quadcopter and the control coefficients of the anti-collision algorithm were analysed. Thecorrectness of the programs operation was checked by simulation using numerous characteristics.Keywords: Unmanned Aerial Vehicle, obstacle avoidance, anti-collision algorithm, UAV dynamicsmodel, quadcopter","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126661190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrical and optical properties of the WOx thin films, prepared by magnetron sputtering, and analysis of their highest value 磁控溅射制备的WOx薄膜的电学和光学特性及其最高值分析

Bulletin of the Military University of Technology Pub Date : 2022-06-30 DOI: 10.5604/01.3001.0016.2779

Julia Dybała, M. Mazur

{"title":"Electrical and optical properties of the WOx thin films, prepared by magnetron sputtering, and analysis of their highest value","authors":"Julia Dybała, M. Mazur","doi":"10.5604/01.3001.0016.2779","DOIUrl":"https://doi.org/10.5604/01.3001.0016.2779","url":null,"abstract":"In this article, optical and electrical properties of tungsten oxide thin films, prepared by magnetron sputtering in the atmosphere of various oxygen content, were analysed. Tungsten oxide is a material, which is widely used in modern applications such as smart windows, anti-steam mirrors, and gas sensors. Five sets of tungsten oxide thin films were deposited by magnetron sputtering in the mixed argon-oxygen atmosphere composed of various content of reactive gas, i.e., from 5% to 15%. In each case, other deposition process parameters were the same. The thickness of the thin films was ca. 160 nm and it was measured with the optical profilometer. It was noticed that along with the increase in the proportion of reactive gas in the process, thin film samples changed their colour from metallic, through navy blue to blue and simultaneously they became increasingly transparent. Measurements of electrical properties, made using the four-point probe and optical properties, performed with the aid of a spectrophotometer showed that increasing the proportion of oxygen in the process increased the average transmission in the visible wavelength range and the resistivity of the prepared WOx thin films. In the article, the Figure of Merit (FoM) coefficients are also presented, which determine the quality of the thin film samples. It was shown that the highest value of the FoM was observed for WOx thin film characterised by a relatively high average transmission in the visible wavelength range and low value of resistivity. The performed measurements showed that the gas atmosphere during magnetron sputtering process leads to the tailoring of the optical and electrical properties of tungsten oxide thin films, which in turn makes it possible to design and apply such thin film coatings in transparent electronics. Keywords: magnetron sputtering, thin films, tungsten oxide, optical and electrical properties","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132419266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of annealing temperature on sensing properties of TIOx thin films prepared by magnetron sputtering 退火温度对磁控溅射制备TIOx薄膜传感性能的影响

Bulletin of the Military University of Technology Pub Date : 2022-06-30 DOI: 10.5604/01.3001.0016.2780

Paulina Kapuścik, Ewa Mankowska, D. Wojcieszak

{"title":"Influence of annealing temperature on sensing properties of TIOx thin films prepared by magnetron sputtering","authors":"Paulina Kapuścik, Ewa Mankowska, D. Wojcieszak","doi":"10.5604/01.3001.0016.2780","DOIUrl":"https://doi.org/10.5604/01.3001.0016.2780","url":null,"abstract":"This work describes the influence of the annealing temperature on the optical and surfaceproperties of non-stoichiometric titanium oxide (TiOx) thin films. The results were related to theinvestigation of the sensing response toward H2 gas. The samples were prepared by the magnetronsputtering method using Ar:O2 plasma with low oxygen content (20% and 30%). An increase in theamount of oxygen in the gas mixture supplied to the magnetron led to a decrease in the deposition rate.The thickness of the deposited thin films, determined by the use of an optical profiler, was found tobe 600 nm and 200 nm, respectively. The coatings were then annealed in an ambient air atmosphereat a temperature in the range from 100C to 800C. Additionally, the roughness of the coating surfacewas measured. To investigate the optical properties of the thin films, transmission and reflection spectrawere measured, and parameters such as transmission coefficient, cutoff wavelength value, and opticalband gap value were determined as functions of the annealing temperature. The sensing propertiesof the thin films were characterised on the basis of changes in a resistance value as a response to amix of Ar:3.5% H2. It was found that the oxidation of the thin films has a key influence not only onthe response time of the TiOx thin films, but also on the character of the response.Keywords: materials engineering, titanium oxides, thin films, magnetron sputtering, optical properties,gas sensing properties","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114623008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interactive air situation simulator 交互式空情模拟器

Bulletin of the Military University of Technology Pub Date : 2022-06-30 DOI: 10.5604/01.3001.0016.2812

Michał Miller-Kopyt, A. Witczak

{"title":"Interactive air situation simulator","authors":"Michał Miller-Kopyt, A. Witczak","doi":"10.5604/01.3001.0016.2812","DOIUrl":"https://doi.org/10.5604/01.3001.0016.2812","url":null,"abstract":"In the present day, simulators play a significant role in training military personnel. They allow, among other things, for practicing combat scenarios that are difficult or outright impossible to execute in reality. Virtual reality technologies are being constantly developed, as are the ways of their interaction with each other and with real objects. This article brings up the topic of interactive distributed simulations, presenting their technological developments as well as the goals of their authors. After the analysis of selected methods of interactive distributed simulations, project assumptions are formulated and interactions occurring between objects in virtual airspace are stated. The last part of the article describes the attempt of creating an interactive air situation simulator in accordance with the formulated assumptions. As a result of the work conducted, it was possible to program a simulator that allows us to study the interactions between radar warning receivers and ground based primary surveillance radars. Not all assumptions have been achieved, most notably full functionality with the DIS standard, however, the project can be further developed, allowing for full compatibility with this standard. Developing a simulator is a process that requires many assumptions, but also trade-offs. With correct assumptions and a standardised way of information exchange between simulators, it is possible to make a web of interoperable simulators. Keywords: aerospace engineering, simulators, radars, distributed interactive simulation","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115268148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of selected performance parameters of capacitive touch sensors 电容式触摸传感器的性能参数比较分析

Bulletin of the Military University of Technology Pub Date : 2022-06-30 DOI: 10.5604/01.3001.0016.2814

Mariusz Mścichowski, Grzegorz Bieszczad, Paweł Horbaczewski

{"title":"Comparative analysis of selected performance parameters of capacitive touch sensors","authors":"Mariusz Mścichowski, Grzegorz Bieszczad, Paweł Horbaczewski","doi":"10.5604/01.3001.0016.2814","DOIUrl":"https://doi.org/10.5604/01.3001.0016.2814","url":null,"abstract":"In the article, various types of touch buttons are presented and compared, including standardself-capacitance buttons and Metal over Cap Technology (MoCT) buttons which work through thedeflection of the additional covering conductive layer.Two types of touch buttons have been simulated. Standard self-capacitance buttons have been simulatedusing built-in CapExt software standard capacitive sensors models while for MoCT buttons, a speciallydesigned simulation model has been developed, which has made a simulation of phenomena occurringin the sensors manufactured in this technology possible. Furthermore, two physical models of capacitivebuttons have been designed and constructed. The parameters of both buttons have been tested andcompared with the simulated results. There is a presentation of a specifically designed and constructedtool which allows simulating a touch event with high accuracy and repeatability. Test results of thetouch force required to activate the sensor, created in the MoCT technology, are presented and theresults are compared against the parameters of classic mechanical buttons.The research has shown that MoCT touch sensors have a high resistance to false detection. Theresearch described in the article allows selecting the effective construction materials for MoCT buttons,depending on the required user parameters such as pressing force and construction parameters suchas required panel thickness (strength). A comparative analysis of the empirical data and the results ofsimulations, conducted with commercially available software, allows accelerating the design processof such buttons and introducing appropriate corrections to the simulation results in the process ofdesigning the final device.Keywords: capacitive touch sensor, parallel plate type capacitive pressure sensor, capacitive pressorsensors, sensing performance","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114256531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical elements for the extreme ultraviolet and soft X-ray range 用于极紫外和软x射线范围的光学元件

Bulletin of the Military University of Technology Pub Date : 2022-06-30 DOI: 10.5604/01.3001.0016.2808

Martyna Wardzińska, P. Wachulak

引用次数: 0

Influence of annealing on selected properties of mixed copper and titanium oxides 退火对铜钛混合氧化物选择性能的影响

Bulletin of the Military University of Technology Pub Date : 2022-06-30 DOI: 10.5604/01.3001.0016.2781

Ewa Mankowska, M. Mazur

引用次数: 0

Vehicle security monitoring system 车辆安全监控系统

Bulletin of the Military University of Technology Pub Date : 2022-06-30 DOI: 10.5604/01.3001.0016.2813

Piotr Adamowski, A. Rosiński

{"title":"Vehicle security monitoring system","authors":"Piotr Adamowski, A. Rosiński","doi":"10.5604/01.3001.0016.2813","DOIUrl":"https://doi.org/10.5604/01.3001.0016.2813","url":null,"abstract":"A vehicle left in a parking lot may be the target of a potential theft or damage. In orderfor the vehicle owner to have information about the condition of his vehicle, it is necessary to applyappropriate security measures. Therefore, a proprietary vehicle security monitoring system has beendeveloped. In order to obtain adequate information about the condition of the secured vehicle, thevehicle security system has been designed and constructed. It allows you to monitor such parametersas: vehicle inclination (related to, for example, lifting the car in order to put it on a trailer), temporaryvehicle acceleration (related to, for example, a car crash in a parking lot), GPS location (related tovehicle displacement in relation to a fixed position), temperature and humidity. In addition, themovement in the vehicle is monitored by a passive infrared detector, the door status (open/ closed)by reed switches, and the gas concentration (LPG, propane butane) by a gas sensor. Information aboutthe vehicle sensors is sent to the user in the form of an SMS message, either at the users request orin the form of an alarm. The designed vehicle security monitoring system is a solution that allowsthe user to both use and add new useful functionalities. It is also possible to add additional sensors,as well as to expand with new innovative functions (e.g. access control). This results in an increasedsense of security for the user regarding his vehicle.Keywords: security, system, vehicle, sensors","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134186205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soldier protection — immediate elimination of contamination 士兵保护-立即消除污染

Bulletin of the Military University of Technology Pub Date : 2022-03-31 DOI: 10.5604/01.3001.0016.1456

W. Harmata

{"title":"Soldier protection — immediate elimination of contamination","authors":"W. Harmata","doi":"10.5604/01.3001.0016.1456","DOIUrl":"https://doi.org/10.5604/01.3001.0016.1456","url":null,"abstract":"The article deals with the current issue, which is the protection of the soldier after\u0000contamination, including the restoration of the so-called immediate liquidation of contamination in the\u0000Polish Armed Forces. Elimination of contamination is the only element of the system of defence against\u0000weapons of mass destruction (WMD), in which the recovery of soldiers, equipment, and technology\u0000after contamination occurs. The most important element of decontamination is immediate elimination\u0000of contamination as it may affect health and often life of the contaminated persons. According to the\u0000conducted research, the effect of chemical weapon (CW) is almost instantaneous, and fabric coverings\u0000slightly delay the effect of poisoning. The guided 2020 doctrinal document DD /3.8(B) contains the main\u0000principles for conducting immediate decontamination, which are inconsistent with other documents.\u0000It is important to recognise that waiting for a commander’s order or postponing the elimination of\u0000contamination of the exposed skin surfaces or uniforms can be tragic in its consequences.\u0000Keywords: chemical sciences, defense against weapons of mass destruction, protection of the soldier,\u0000immediate elimination of contamination\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126545726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review of fibers and fabrics used for special services’ protective clothing in terms of their mechanical and thermal properties 特种部队防护服用纤维和织物的机械和热性能综述

Bulletin of the Military University of Technology Pub Date : 2022-03-31 DOI: 10.5604/01.3001.0016.1379

D. Miedzińska, R. Wolański

引用次数: 1