scholarly journals Development of a Mobile Platform with IoT for LIDAR

2021 ◽  
Vol 2107 (1) ◽  
pp. 012042
Author(s):  
Tew Chin Keong ◽  
S.A.A. Shukor ◽  
N.A. Rahim
Keyword(s):  
Mobile Robot ◽  
Mobile Application ◽  
Low Cost ◽  
Mobile Platform ◽  
Laser Rangefinder ◽  
The Real ◽  
Real Environment ◽  
Arduino Uno ◽  
Map Analysis ◽  
Mit App Inventor

Abstract Nowadays, interior scanning is very significant in mobile robot applications because it helps humans to monitor, study and investigate the environments, especially the challenging ones with clutter, hazardous, unexplored, dynamic, and others. A LIDAR can be utilised to perform the task; however, suitable mobile platform should be accompanying it to allow mobility while collecting data representing the environment. This paper shows the process of developing a suitable mobile platform for a low-cost laser rangefinder, RP LIDAR from SLAMTEC with its scanning performance. The mobile platform used in this project is an Arduino Uno R3 4WD mobile robot. L298 H-Bridge IC and HC-05 Bluetooth module is implemented on the robot to make the user able to control its movement through a mobile application. MIT app inventor is used to develop the mobile application. Through the application, user can control the mobile robot with the LIDAR to move around the selected indoor area to scan its environment. To show the scanning results, MATLAB will be used to plot the map. Analysis from the plotting show good mapping results and similar to the real environment, thus presenting its potential to be used in the above-mentioned situations.

scholarly journals Mixed Reality Enhanced User Interactive Path Planning for Omnidirectional Mobile Robot

2020 ◽  
Vol 10 (3) ◽  
pp. 1135 ◽  
Author(s):  
Mulun Wu ◽  
Shi-Lu Dai ◽  
Chenguang Yang
Keyword(s):  
Path Planning ◽  
Mobile Robot ◽  
Mixed Reality ◽  
Avoidance Performance ◽  
Motion Path ◽  
The Real ◽  
Virtual Objects ◽  
Omnidirectional Mobile Robot ◽  
Real Environment ◽  
Control Command

This paper proposes a novel control system for the path planning of an omnidirectional mobile robot based on mixed reality. Most research on mobile robots is carried out in a completely real environment or a completely virtual environment. However, a real environment containing virtual objects has important actual applications. The proposed system can control the movement of the mobile robot in the real environment, as well as the interaction between the mobile robot’s motion and virtual objects which can be added to a real environment. First, an interactive interface is presented in the mixed reality device HoloLens. The interface can display the map, path, control command, and other information related to the mobile robot, and it can add virtual objects to the real map to realize a real-time interaction between the mobile robot and the virtual objects. Then, the original path planning algorithm, vector field histogram* (VFH*), is modified in the aspects of the threshold, candidate direction selection, and cost function, to make it more suitable for the scene with virtual objects, reduce the number of calculations required, and improve the security. Experimental results demonstrated that this proposed method can generate the motion path of the mobile robot according to the specific requirements of the operator, and achieve a good obstacle avoidance performance.

scholarly journals Automatic Reconstruction of Building-Scale Indoor 3D Environment with a Deep-Reinforcement-Learning-Based Mobile Robot

2021 ◽  
Vol 6 ◽  
pp. 11-23
Author(s):  
Menglong Yang ◽  
Katashi Nagao
Keyword(s):  
Reinforcement Learning ◽  
Mobile Robot ◽  
Real World ◽  
Low Cost ◽  
Three Dimensional ◽  
Point Clouds ◽  
Autonomous Agent ◽  
Entire Area ◽  
The Real ◽  
3D Point Clouds

The aim of this paper is to digitize the environments in which humans live, at low cost, and reconstruct highly accurate three-dimensional environments that are based on those in the real world. This three-dimensional content can be used such as for virtual reality environments and three-dimensional maps for automatic driving systems. In general, however, a three-dimensional environment must be carefully reconstructed by manually moving the sensors used to first scan the real environment on which the three-dimensional one is based. This is done so that every corner of an entire area can be measured, but time and costs increase as the area expands. Therefore, a system that creates three-dimensional content that is based on real-world large-scale buildings at low cost is proposed. This involves automatically scanning the indoors with a mobile robot that uses low-cost sensors and generating 3D point clouds. When the robot reaches an appropriate measurement position, it collects the three-dimensional data of shapes observable from that position by using a 3D sensor and 360-degree panoramic camera. The problem of determining an appropriate measurement position is called the “next best view problem,” and it is difficult to solve in a complicated indoor environment. To deal with this problem, a deep reinforcement learning method is employed. It combines reinforcement learning, with which an autonomous agent learns strategies for selecting behavior, and deep learning done using a neural network. As a result, 3D point cloud data can be generated with better quality than the conventional rule-based approach.

The Concept of the Modularized Subsystem Performing Mobile Platform Navigation Tasks

2012 ◽  
Vol 17 (4) ◽  
pp. 143-150
Author(s):  
Adam Wulkiewicz ◽  
Maciej Łaski ◽  
Sylwester Błaszczyk ◽  
Piotr Duch ◽  
Rafał Jachowicz ◽  
...  
Keyword(s):  
Mobile Robot ◽  
Unmanned Vehicles ◽  
Mobile Platform ◽  
The Real ◽  
Unknown Environment ◽  
The Subject ◽  
Robotic Vehicles

Abstract Robotic vehicles autonomy is the subject of many researches performed by various institutions. There is growing tendency to conduct research in the field of autonomous mobile units, unmanned vehicles and robots moving without operator supervision. Authors of this article presents the concept of the modularized subsystem implementing the functionality of the mobile platform navigation in an unknown environment. The concept has been implemented in the real mobile robot.

scholarly journals Prototype Development of Mecanum Wheels Mobile Robot: A review

2020 ◽  
Vol 1 (2) ◽  
pp. 71-82
Author(s):  
Mohd Azri Abd Mutalib ◽  
Norsinnira Zainul Azlan
Keyword(s):  
Mobile Robot ◽  
Mobile Application ◽  
Control Strategies ◽  
Low Cost ◽  
Dynamic Modelling ◽  
Market Demand ◽  
Confined Space ◽  
Prototype Development ◽  
Wheeled Robot ◽  
Accuracy And Repeatability

This paper provides the review and prototype development of mecanum wheels mobile robot (MWMR). Nowadays, there is a high market demand for a wheeled machine or wheeled robot for various applications. The ability to move in any direction without altering even a single wheel makes this type of wheel useful for driving, especially in a narrowed or confined space. Various styles of implementing MWMR are discussed in this paper. The kinematic derivation and dynamic modelling are also presented. Characteristically, mecanum wheels face traditional mobile application issues like jerking and slippage, which contribute to low positioning accuracy and repeatability. Besides, environmental factors like disturbance and uncertainty also contribute to these issues. To eliminate or at least reduce the effect, the control strategies in previous researches have been reviewed and are presented in this paper. Finally, a low-cost prototype of MWMR was developed as an experimental platform for future study.

scholarly journals EXPERIMENTAL VERIFICATION OF THREE MODE CONTROLLER FOR HOME APPLIANCE USING WIRELESS TECHNOLOGY

2021 ◽  
Vol 22 (2) ◽  
pp. 188-198
Author(s):  
Maswoodhur Rahman Abdul Wahidh ◽  
Muruganandam Masilamani
Keyword(s):  
Mobile Application ◽  
Low Cost ◽  
Android Application ◽  
Communication Mode ◽  
Working Model ◽  
Switch Mode ◽  
Home Appliance ◽  
App Inventor ◽  
Ending Process ◽  
Mit App Inventor

An attempt is made to enhance the automation and sophistication of a home appliance. In this work, electric lamp is considered as a home appliance and it is controlled through three different modes. Technology is a never-ending process, the home automation is a well-known field of recent research, which makes the customer to reach the next level of sophistication. One such next level is presented in this article. The proposed paper is about design, experimentation and testing of three-way control for a lamp, using low cost microcontroller, Bluetooth module and android mobile application. The three modes of control are manual switch mode, Light Dependent Resistor (LDR) mode and Bluetooth based Wireless communication mode. The work is initially simulated using Proteus 8 Professional Application and then implemented as a real time working model. Also, the working performances were tested using the Simulation and developed working model.  The control in Bluetooth mode is based on an Android Application. A dedicated Android Application is developed for testing the developed working model, using MIT App Inventor. ABSTRAK: Percubaan dibuat untuk meningkatkan automasi dan kecanggihan perkakas rumah. Dalam karya ini, lampu elektrik dianggap sebagai perkakas rumah dan ia dikendalikan melalui tiga mod yang berbeza. Teknologi adalah proses yang tidak pernah berakhir, automasi rumah adalah bidang penyelidikan baru-baru ini, yang menjadikan pelanggan mencapai tahap kecanggihan yang seterusnya. Satu tahap seterusnya ditunjukkan dalam artikel ini. Makalah yang dicadangkan adalah mengenai reka bentuk, eksperimen dan pengujian kawalan tiga arah untuk lampu, menggunakan mikrokontroler kos rendah, modul Bluetooth dan aplikasi mudah alih android. Tiga mod kawalan tersebut ialah mod suis manual, mod Perintang Bergantung Cahaya (LDR) dan mod komunikasi Tanpa Wayar berasaskan Bluetooth. Karya ini pada mulanya disimulasikan menggunakan Proteus 8 Professional Application dan kemudian dilaksanakan sebagai model kerja masa nyata. Juga, prestasi kerja diuji menggunakan Simulasi dan model kerja yang dikembangkan. Kontrol dalam mod Bluetooth didasarkan pada Aplikasi Android. Aplikasi Android khusus dikembangkan untuk menguji model kerja yang dikembangkan, menggunakan MIT App Inventor.

Development of a Mobile Robot with Camera-based Target Tracking and Obstacle Avoidance Systems

2020 ◽  
Vol 12 (7) ◽  
Author(s):  
Mohamed Fitri Mohamad Jamatolail ◽  
◽  
Radzi Ambar ◽  
Mohd Helmy Abd Wahab ◽  
Khalid Isa ◽  
...  
Keyword(s):  
Mobile Robot ◽  
Target Tracking ◽  
Obstacle Avoidance ◽  
Low Cost ◽  
Elderly Care ◽  
Hardware Design ◽  
Ultrasonic Sensor ◽  
Preliminary Design ◽  
Design And Development ◽  
Arduino Uno

This work describes the preliminary design and development of a mobile robot called CREC (Camera-Based Mobile Robot for Elderly Care). The robot uses a low-cost HC-SR04 ultrasonic sensor to avoid obstacle, and a Pixy CMUcam5 camera as the vision-based sensor to track the target. This camera uses colour marker tag to follow and monitor the target. CREC uses an Arduino UNO microcontroller to fuse data conveyed by the ultrasonic sensor and camera so that the robot can follow the target and avoid obstacles simultaneously. In this work, the hardware design of CREC is described. Furthermore, preliminary experiments to characterize the ultrasonic sensor and Pixy camera are demonstrated to verify the usefulness of the selected sensors for the mobile robot.

HEURISTIC EVALUATION FOR MOBILE APPLICATION (STUDI KASUS: APLIKASI DEPO AUTO 2000 TANJUNG API API PALEMBANG)

2017 ◽  
Vol 8 (2) ◽  
pp. 563 ◽  
Author(s):  
Usman Ependi
Keyword(s):  
Real World ◽  
Mobile Application ◽  
Usability Testing ◽  
Heuristic Evaluation ◽  
End User ◽  
Error Prevention ◽  
The Real ◽  
User Control ◽  
Cosmetic Problem

Heuristic evaluation merupakan salah satu bentuk usability testing perangkat lunak yang dinilai oleh pengguna (evaluator). Dalam melakukan heuristic evaluation instrumen penilaian terdiri dari sepuluh (10) pernyataan dengan lima pilihan jawaban dalam skala severity ratings. Dalam penelitian ini heuristic evaluation terhadap aplikasi Depo Auto 2000 Tanjung Api-Api Palembang yang dilakukan oleh 4 evaluator.  Hasil dari heuristic evaluation dikelompokkan kedalam  masing-masing instrumen yaitu visibility of system status dengan nilai 0,75, match between system and the real world dengan nilai 0,25, user control and freedom dengan nilai 0,25, consistency and standards dengan nilai 0,75, error prevention dengan nilai 1, recognition rather than recall dengan nilai 1,25, flexibility and efficiency of use dengan nilai 0,25, Aesthetic and minimalist design dengan nilai 0,25, help users recognize, diagnose, and recover from errors dengan nilai 1 dan Help and documentation dengan nilai 0. Dari hasil heuristic evaluation yang dilakukan menunjukkan bahwa evaluator memberikan nilai 0 dan 1 aplikasi Depo Atuo 2000 Tanjung Api-Api Palembang. Hasil penilaian tersebut menunjukkan bahwa aplikasi yang buat tidak ada masalah usability dan hanya memiliki cosmetic problem sehingga aplikasi Depo Auto 2000 Tanjung Api Api Palembang  dapat dinyatakan layak untuk didistribusikan kepada pengguna akhir (end user). 

Open Loop Speed Control Of Brushless DC Motor Using Low Cost Arduino UNO Processor

2016 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Potnuru Devendra ◽  
Mary K. Alice ◽  
Ch. Sai Babu ◽  
◽  
◽  
...  
Keyword(s):  
Low Cost ◽  
Speed Control ◽  
Dc Motor ◽  
Open Loop ◽  
Brushless Dc Motor ◽  
Brushless Dc ◽  
Arduino Uno
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