Sliding Door Research Articles

An Automatic Sliding Door: Leveraging Locally Sourced Materials for Innovation

A door is an essential component of a building. It provides security and access to the different parts of a building. In the modern era, when people want everyday life to be completely automated so that work can be done easily in a short amount of time without wasting energy, automatic doors have continued to be fashionable. In addition to being effective and efficient as automation continues to develop rapidly, automatic doors are essential to curbing the transmission of infectious diseases like Ebola and COVID-19. While automatic doors are available in Nigeria, they are imported, thereby shrinking the nation’s foreign exchange. Not only that, but they also cost more when imported compared to when they are manufactured locally. In this work, therefore, a cost-effective automatic sliding door was developed using locally sourced materials from Nigeria. The door uses a passive infrared sensor (PIR) to detect a human or an object in a doorway and automatically opens and closes the door by signalling a microcontroller to activate a DC motor, which drives a belt pulley mechanism. The conceptual design of the system was designed and simulated using SolidWorks. Based on the design, calculations were made to determine the appropriate materials to source. The DC motor model was simulated using MATLAB SIMULINK as a physical model to observe how it would behave in the presence of noise, and the PID controller was tuned to give optimal performance using MATLAB Auto tuning. Some materials were locally purchased, while others were constructed through standard workshop methods. A cost-saving advantage of 95.77% and 89.13% were achieved when compared to imported equivalent types from the USA and China, respectively. The siding door was assembled and subjected to a functionality test, and it was observed that the automatic sliding door successfully detects humans and objects and actuates the motor to open and close the door after the object is out of the set sensing range of 50cm. This work is a step forward in boosting local innovation in Nigeria.

Design of an Automated Sliding Door Using Ultrasonic Sensors and an Arduino Board to Halt the Spread of Covid-19

Covid-19 is an infectious disease caused by acute respiratory syndrome coronavirus 2 (Sars-CoV-2), therefore a study is conducted to break the chain the spread of the coronavirus is a touchless automatic door. In this study, an automatic door is made, and this door uses an Arduino-based ultrasonic sensor. This research aims to be able to design and build sliding doors for automatic doors and can create an Arduino system that is suitable for automatic doors and can use ultrasonic sensors as a touchless medium. This research uses tools and materials, namely Arduino Uno, ultrasonic sensor, dc motor, l298n motor driver, and for the driving mechanism is a dc motor connected to the pinion sprocket and a chain connected to the door surface. This research designs doors in SolidWorks 2018 software and builds doors with specifications (Material: PVC, Height: 1900 mm, Width: 610 mm, Thickness: 40 mm, Mass: 7.5 kg, Weight: 73.5 N) in a street workshop in Leuweung Sawo Cilegon-Banten, as well as making an Arduino system for doors that can move automatically by making a coding program in the Arduino IDE software, for opening and closing the door with an ultrasonic sensor that is set at a distance of about 5 cm..

Выбор материалов и конструктивных решений раздвижной стены сменного кузова

Purpose: Material choice and construction development of sliding wall for interchangeable body with expanding side walls and roof. Methods: Development and calculation of interchangeable body sliding wall construction were being fulfilled according to several technical-normative documentations with the help of engineering programs COMRAS- 3Dv18.1 and SOLIDWORKS 2016. Mechanical trials of samples were held on the basis of Petersburg Transport University in Mechanical Laboratory named after Prof. Belelyubskiy N. A. Results: interchangeable body slide door construction has been developed. The variants of samples of interchangeable body side wall of various materials and construction are proposed. Sample “on location” trials to define mechanical properties were pursued. The results on experimental and theoretical research to define stress-deformable sample states for interchangeable body sliding side walls ‘re given. Practical importance: The developed construction of sliding wall with various material application makes it possible to lower tare mass of new being projected interchangeable and removable bodies with expanding slide walls and roof wherein preserving own strength characteristics.

DeepGlobal: A framework for global robustness verification of feedforward neural networks

Feed forward neural networks (FNNs) have been deployed in a variety of domains, though achieving great success, also pose severe safety and reliability concerns. Existing adversarial attack generation and automatic verification techniques cannot formally verify a network globally, i.e., finding all adversarial dangerous regions (ADRs) of a network is out of their reach. To address this problem, we develop a global robustness verifiable FNN framework DeepGlobal with four components: 1) a rule-generator finding all potential boundaries of a network by logical reasoning; 2) a new network architecture Sliding Door Network (SDN) enabling rule generation in a feasible way; 3) a selector which selects real boundaries from the generated potential boundaries; 4) a filter finding ADRs with meaningful adversarial examples. The ADRs can be represented by the identified real boundaries. We demonstrate the effectiveness of our approach on both synthetic and real datasets.

Concept of Center Pillarless Car Body and Dual Sliding Door

<div class="section abstract"><div class="htmlview paragraph">To prepare for the future car market, concept cars based on eco-friendly vehicles with autonomous driving systems are being developed, such as BEV (battery electric vehicle) and HFCEV (hydrogen fuel cell electric vehicle). These concept cars adopt a new body structure to improve passenger convenience, and the CTR-PLRless (center pillarless) body structure is one of the key structures that can improve the passenger convenience. However, the CTR-PLRless body structure has a disadvantage in that it cannot connect the load between the upper parts and the lower parts of the body structure, as well as that it provides limited protection to the passengers from the occurrence of a side collision because the main members on the side of the body are removed. Therefore, the aim of this paper is to introduce a door opening and closing mechanism and body structure design concept that applies the CTR-PLRless structure to general CUV vehicles, and to suggest a door reinforcement method using AHSS (advanced high strength steel). The door opening and closing mechanism was implemented as a dual sliding method, and the performance verification of the door reinforcement structure was performed with stiffness analysis and crash analysis. The removed CTR-PLR was modified and fastened to the door to reinforce the door, and it was developed with the concept of minimizing deformation by applying hot-stamping process with PHS (press hardened steel).</div></div>

Design and Prototyping of Powered Sliding Door for Light Commercial Vehicles

This study presents the powered sliding door (PSLD) design and prototype for light commercial vehicles. First of all, the literature and patent research are done. And the state of the art for sliding door mechanism types and electronic control methods are investigated. Then, the requirements, specifications and regulations of original equipment manufacturers (OEMs) are dealt with and design require-ments and criteria are determined. The performance requirements of the electric motor for the sliding door main unit are calculated according to the design crite-ria and the vehicle door. The main unit is designed to actuate the sliding door as per the design criteria by defining the electric motor. The vehicle door must be unlocked before opening or closing the door. Unlocking actuator is developed for this process. Subsequently, the electronic control unit (DCU) is designed to control the components and actuators. In order to solve the problem frequently encountered in obstacle detection when the vehicle is on a slope, the current lim-its are updated according to the current information read from the electric motor and the vehicle slope information, and the obstacle detection is tried to be per-formed. Finally, testing and verification studies are performed according to the design requirements.

Elevator controller based on implementing a random access memory in FPGA

Previous techniques of elevator controllers suffer from two main challenges: processing time, and software size. In this work these challenges have been overcame by implementing a controller random access memory (RAM) in a fast FPGA for a proto-type of two-floors elevator, as known the RAM and FPGA are fast devices. A look-up-table LUT (which is fast technique) has been proposed for this work, this LUT has represented a proposed relation between 10 and 7 lines, the states of the sensors and switches have been represented by the 10 input lines, and the commands for the motors of slide door and traction machine have been represented by the 7 output lines. The proposed LUT has been schematically realize by a (10×7) bits RAM which has been implemented in field programmable gate arrays (FPGA). The proposed system has been performed using 'ISE Design Suit' software package and FPGA Spartan6 SP-605 evaluation kit, the clock frequency of this FPGA is 200 MHz which is respectively high. The processing time and software size of the proposed controller had reached to 20ns and 3.75 MB, which they are less than that obtained from the results of previous techniques.

Durability Test Bench Design for Electric Lock of Sliding Door

With the rapid development of automobile industry, electric door locks have widely used in various vehicle doors, especially for sliding doors. Among all performances, durability performance for electric locks is virtual for safety, so miniaturized durability test bench has been designed in the research according to the national standard of electric lock. Firstly, four-bar linkage mechanism has been adopted as the main actuator for the motion track achievement, the real motion track of sliding door can be guaranteed through the verification of ADAMS simulation. Secondly, the compression test has been carried out to calculate the reaction force of door sealing strips, thus the resistance device of test bench for simulating reliable locking process of electric lock has been designed. The miniaturized durability test bench can replace the existing durability test method which only performed by the whole vehicle testing, thus providing a low-cost and reliable test device for relevant manufacturers.

Development of Sliding Door with Storable Handrail Supporting Senior and Handicapped Persons to Walk by Themselves

Development of Sliding Door with Storable Handrail Supporting Senior and Handicapped Persons to Walk by Themselves

Study of the Sliding Door Shaking Problem and Optimization Based on the Application of Euler’s Spiral

Study of the Sliding Door Shaking Problem and Optimization Based on the Application of Euler’s Spiral

국가지정 음압격리 입원치료병상의 슬라이딩 도어의 개폐속도 및 의료진의 이동속도에 따른 오염공기 유출에 관한 해석적 연구

국가지정 음압격리 입원치료병상의 슬라이딩 도어의 개폐속도 및 의료진의 이동속도에 따른 오염공기 유출에 관한 해석적 연구

自動スライドドア作動時における外気侵入状況の把握 （第三報）二重スライドドアの配置の検討

自動スライドドア作動時における外気侵入状況の把握 （第三報）二重スライドドアの配置の検討

低境界風速条件における空間分煙効果に関する研究 : 第3報-暖房期におけるスライド式扉およびスイング式扉の開閉がたばこ煙の挙動に及ぼす影響

低境界風速条件における空間分煙効果に関する研究 : 第3報-暖房期におけるスライド式扉およびスイング式扉の開閉がたばこ煙の挙動に及ぼす影響

Performances Analysis of a Linear Motor for Sliding Door Application

The present work deals to investigate the performance of linear switched reluctance motor designed for a sliding door application. The objective of this paper is to develop an analytical model in order to predict the dynamic behaviour of the studied motor. Firstly, the characteristics of the proposed motor in open loop operation was computed.Secondly, the effect of the load on the response of the motor was investigated. In this context, a two technoque in open loop were adopted to solve the error positioning with load and to damp the oscillation observed in the characteristics of the motor in order to obtain a smooth motion.

Who Moved My Masterpiece? Digital Reproduction, Replacement, and the Vanishing Cultural Heritage of Kyoto

Abstract:In many temples in and around Kyoto, sets of wall and slide door paintings and folding screen paintings, which are designated either national treasures or important cultural properties of Japan, have been replaced in situ by high-quality digital reproductions. The original paintings, in turn, are now largely out of sight, placed in storage spaces within temples and museums. Vanguard projects of this nature were conducted in the mid-1990s. Since the mid-2000s, however, and without adequate review of the merits and demerits of such replacement, the practice has accelerated, and numerous sets of slide door paintings have been replaced by reproductions produced for the most part by two competing corporations. The process and implication of such digital replacement require far greater attention and discussion than has to date taken place. Accordingly, this article seeks to clarify the current status of, and problems arising from, the digitization projects taking place in and around Kyoto.

Study of Optimizing Sliding Door Efforts and Package Layout

Study of Optimizing Sliding Door Efforts and Package Layout

P-3 The Design of the Requirements and Verification for the Sliding Door knob:

P-3 The Design of the Requirements and Verification for the Sliding Door knob:

Raspberry Piを用いたセンサー付きスライドドア自動開閉の実験と音声機能の検討

Raspberry Piを用いたセンサー付きスライドドア自動開閉の実験と音声機能の検討

Development of Sliding Door with Storable Handrail Supporting Senior and Handicapped Persons to Walk by Themselves

Development of Sliding Door with Storable Handrail Supporting Senior and Handicapped Persons to Walk by Themselves

Examining the Modular End of Line Control Unit Design Criteria for Vehicle Sliding Door System Track Profile

Examining the Modular End of Line Control Unit Design Criteria for Vehicle Sliding Door System Track Profile