-
Autonomous and Wireless Control Fire Fighter Robot
Issue:
Volume 9, Issue 4, December 2021
Pages:
97-103
Received:
31 August 2021
Accepted:
27 September 2021
Published:
12 October 2021
Abstract: The aim of this paper is to explore a new model to extinguish fire without much human effort. There has been a renewed and sustained interest towards safety in both public and private sectors. During the year 2016, 3,515 people died by fire or fire related injuries in the USA alone. The total estimated economic value of fire related damages in 2017 exceeds $300 billion. Industries are the most possible places of fire accident particularly those related to chemical/hydrocarbon manufacturing and or processing. An advanced autonomous fire extinguishing system can combat fire accidents and minimize damage to both human lives and property without exposing fire fighters to additional risks. The proposed robot can autonomously detect and extinguish fire before it spreads. The robot can, without any human input, navigate through hallways or corridors of any complexity, even places unreachable by a human, to reach the origin of the fire before it is allowed to spread further. The robot can automatically recognize and avoid obstacles to reach its destination. The robot, therefore, can not only be used to effectively fight fire but can also be deployed to assist in search and rescue operations at natural disasters such as floods, hurricanes, tornadoes, volcanic eruptions, earthquakes, tsunamis, and other geologic processes. It can also be utilized to carry up to 1kg of equipment or emergency supply to hard to reach places. Its camera view can be live streamed, and if needed controlled by an authorized personal using a smartphone from a safe place through its wireless capabilities.
Abstract: The aim of this paper is to explore a new model to extinguish fire without much human effort. There has been a renewed and sustained interest towards safety in both public and private sectors. During the year 2016, 3,515 people died by fire or fire related injuries in the USA alone. The total estimated economic value of fire related damages in 2017...
Show More
-
Construction of Parametric System for Aircraft Conceptual Design Based on Simulink
Zhang Yue,
Xu Ying,
Xu Zhanghuan,
Dan Yanghui
Issue:
Volume 9, Issue 4, December 2021
Pages:
104-110
Received:
27 October 2021
Accepted:
23 November 2021
Published:
24 November 2021
Abstract: Aircraft conceptual design is a complex system engineering, which makes it easy for aircraft designers to create confusion when constructing analysis systems. In order to solve the difficult problem of complex system modeling, we thought of making the flow diagram of aircraft conceptual design more intuitive and concrete than the ordinary method when design an abstract system. Simulink's block diagram modeling and online data transfer methods can visually develop complex systems, which are usually aimed at specific systems in most of related studies, like areoengine containing concrete component which can be constructed to block diagram framework in a so-called component level. Although the aircraft conceptual design system is an abstract system, we still can divide it into several parts based on its different sub-tasks which is like the component of the concrete system, greatly reducing the difficulty of modeling. In this paper, the aircraft conceptual design process was modularized to a framework using block diagram, and an intuitive aircraft conceptual design system according to the block diagram design frame was constructed through the visual development function of Simulink. According to the requirements of each stage of the flight mission envelope, an aircraft conceptual design parametric system based on constraint analysis subsystem and mission analysis subsystem is constructed, which advances layer by layer internally, merges and unifies externally, and finally completes the construction of the system. The developed system includes constraint analysis subsystem and mission analysis subsystem, which can analyze and calculate the overall parameters in aircraft conceptual design. In the process of system construction, we will encounter some problems due to negligence, but because we build the block diagram in a step-by-step design method, the structure is also very clear, it is easy to find the wrong module and correct it quickly. To evaluate the accuracy of the system, with the data of Airbus A318 as a reference, the design requirements were set, and the overall parameters of the conceptual design of the aircraft including takeoff weight, wing area, takeoff thrust, fuel amount, were calculated, and compared with the relevant parameters of A318, the deviation was within a reasonable range. It can be seen that after the framework of the aircraft concept design system is constructed, the aircraft parametric concept design system can be constructed intuitively through Simulink's block diagram modeling translation.
Abstract: Aircraft conceptual design is a complex system engineering, which makes it easy for aircraft designers to create confusion when constructing analysis systems. In order to solve the difficult problem of complex system modeling, we thought of making the flow diagram of aircraft conceptual design more intuitive and concrete than the ordinary method wh...
Show More
-
Autonomous Driving System with a Planar LiDAR-based Localization Method for a Magnetic Wheeled-type Bridge Inspection Robot—BIREM-IV-P
Hyunwoo Song,
Ryota Hatanaka,
Masaru Tanida,
Yogo Takada
Issue:
Volume 9, Issue 4, December 2021
Pages:
111-121
Received:
15 November 2021
Accepted:
9 December 2021
Published:
24 December 2021
Abstract: Since the period of high economic growth, several social infrastructure facilities have been aging. Regular inspections are conducted for safety; however, current bridge inspections are visually performed, which is problematic with regard to cost and safety. Therefore, robots are being considered for inspections. In previous research, a bridge inspection robot was developed, and the small bridge inspection robot BIREM with high driving performance was developed. However, as BIREM-IV is manually operated, autonomous driving is required. In this study, a planar light detection and ranging (LiDAR) sensor, which was developed in the previous study, and a camera was mounted to perform localization for the autonomous driving of the bridge inspection robot BIREM-IV. In addition, in order to mount the sensor necessary for localization in the robot, the driving performance evaluation according to the change of the robot's additional weight and center of gravity was conducted as a previous study, and a new robot was designed and manufactured based on the results. The newly manufactured BIREM-IV-P is path planning by comparing it with the coordinates of the destination point based on the robot's localization information obtained from the mounted planar LiDAR and the camera and analyzes the possibility of autonomous driving to the destination through path tracking.
Abstract: Since the period of high economic growth, several social infrastructure facilities have been aging. Regular inspections are conducted for safety; however, current bridge inspections are visually performed, which is problematic with regard to cost and safety. Therefore, robots are being considered for inspections. In previous research, a bridge insp...
Show More
-
Research of ETC with GPS/BDS High-speed Charging and Navigation System
Sun Zhimin,
Wang Zhengjia,
Zhou Zhijun
Issue:
Volume 9, Issue 4, December 2021
Pages:
122-128
Received:
7 January 2022
Published:
8 January 2022
Abstract: Aiming at the disadvantages of ETC electronic charging compared with traditional manual charging, a ETC charging method based on GPS/BDS combined system is proposed. In view of the vehicle in the process of driving will be due to a variety of reasons in the road through the gantry record omission and other circumstances, resulting in the exit billing failed to charge according to the actual driving path; Because ETC electronic toll collection system is implemented by network technology under the environment of information technology, in the case of network technology problems, ETC electronic toll collection system will stop working phenomenon, thus affecting the efficiency of the highway; For vehicles on business trips, the ETC channel is cumbersome to charge and reimburse. At present, manual toll channels are still used for high-speed bus trips. At present, there are still some technical loopholes in the ETC electronic charging system. Criminals steal or rub others' ETC cards. When the vehicle enters the ETC sensor area and opens the railing, they will rub others' ETC by following closely or changing lanes instantly, which will affect the interests of the owners and lead to safety accidents and other problems. The GPS/BDS chip is installed on the ETC device. According to the real-time path information and preset navigation route of the charging vehicle, the precise positioning of the charging vehicle is realized to achieve accurate charging. According to the observed vehicle density of road conditions, select the path that is not easy to jam vehicles to achieve accurate navigation; Judge whether the real-time location information of the vehicle is in the target navigation route, so that when the vehicle takes a wrong route, it can quickly return to the correct route and reduce the high-speed charge.
Abstract: Aiming at the disadvantages of ETC electronic charging compared with traditional manual charging, a ETC charging method based on GPS/BDS combined system is proposed. In view of the vehicle in the process of driving will be due to a variety of reasons in the road through the gantry record omission and other circumstances, resulting in the exit billi...
Show More
