A Detection System of Location and Direction Angle by a RF Tag Reader Using a Rotary Antenna

2008 ◽  
Vol 20 (1) ◽  
pp. 189-195 ◽  
Author(s):  
Takashi Asakawa ◽  
◽  
Kazue Nishihara ◽  
Tadashi Yoshidome ◽  
Keyword(s):  
Turning Point ◽  
Detection System ◽  
Automatic Correction ◽  
Electric Wheelchair ◽  
Direction Angle ◽  
Voice Control ◽  
Moving Direction ◽  
Rf Tags ◽  
The Voice ◽  
Voice Instruction

This paper describes the method of presuming the angle of moving direction of an electric wheelchair by reading information of RF tags put on a floor using a rotary antenna, which is fixed underneath the wheelchair, revolving constantly above RF tags of the floor at a turning point. Our primary intention is to make a detection system of direction angle using RF tags for a voice controlled electric wheelchair. The voice instruction cannot give smooth nor detailed controls with ease unlike the joystick control. Because the voice control system can use only a few discrete instruction words. Thereby to assist smooth indoor motion, we proposed here a new method of automatic correction of the direction angle measured by the above rotary antenna and RF tags. We demonstrated experimentally to detect and correct the angle of moving direction when the wheelchair passes over the turning point, which was found to give accurate orientations.This paper is the full translation from the transactions of JSME Vol.73, No.729.

EVALUATION OF TAG MOVING DIRECTION DETECTION IN A UHF RFID GATE SYSTEM

2012 ◽  
Vol 21 (06) ◽  
pp. 1240015 ◽  
Author(s):  
YOSHINORI OIKAWA
Keyword(s):  
Inventory Management ◽  
Uhf Rfid ◽  
Bar Code ◽  
Received Power ◽  
Long Read ◽  
Direction Detection ◽  
Moving Direction ◽  
Gate System ◽  
The Difference ◽  
Rf Tags

A UHF-band RFID system handling many RF tags has some advantages over a bar code system such as simultaneous multi-reading and long read range. Especially, it has been strongly desired by the logistics and the retail industries for efficiency of operation. Recently, user-friendly RFID systems are being studied. We focused on a gate system using RFID technologies. If the tag moving direction can be recognized at the RFID gate system, it will be very useful for the efficiency of inventory management and the checking of pilferage or shoplifting. In this paper, new methods of tag moving direction detection using the difference of passing time of two antennas without expensive external sensors is proposed and evaluated. Two methods are proposed for the specific procedure. The first one is to detect the time when the received power goes over the preset threshold. The second one is to estimate the aimed time using the maximum likelihood approach. Some experimental results of these methods are also shown and their feasibility is proved.

The Voice of the Redeemer in Paradise Lost

PMLA ◽  
1955 ◽  
Vol 70 (5) ◽  
pp. 1082-1089
Author(s):  
Joseph H. Summers
Keyword(s):  
Paradise Lost ◽  
Turning Point ◽  
The Self ◽  
Adam And Eve ◽  
The Voice

After the initial intoxication, the Fall of Man is delineated in Paradise Lost largely in terms of the charges and counter-charges, the fear and hatred, the self-aggrandizement and the isolation of Adam and Eve. Only after Adam's most bitter denunciation of Eve is the direction changed with Eve's famous “Forsake me not thus, Adam … ”(x.914–936). Eve's speech is the turning point, for it is here that one of the guilty pair first attempts to take upon herself the burden of guilt, shows love and asks for love. The direction once taken, Adam is moved to similar affection, and the resulting reconciliation between man and woman is the inevitable prologue and type of the ensuing reconciliation between man and God.

ROS Based Voice-Control Navigation of Intelligent Wheelchair

2015 ◽  
Vol 733 ◽  
pp. 740-744 ◽  
Author(s):  
Yi Zhang ◽  
Shi Chuan Xu
Keyword(s):  
Operating System ◽  
Control System ◽  
System Development ◽  
Powered Wheelchair ◽  
Robot Operating System ◽  
Intelligent Wheelchair ◽  
Software Packages ◽  
Voice Control ◽  
The Cost ◽  
The Voice

Compared with the traditional electric-powered wheelchair, people are paying more attention on intelligent wheelchair. While the traditional intelligent wheelchair relays on separate designed control system, it is not good for general use. In that case, ROS provides an easy to use framework for rapid system development so that the researchers can develop various software packages to meet their needs, and we can also call each other packages without considering the compatibility problems. In this paper, we present a ROS (Robot Operating System) based intelligent wheelchair with the function of voice-control navigation. Compared with the traditional navigation, the voice-control navigation is more human. Obviously, ROS increases the versatility of system and reduces the cost. In order to prove the advancement and feasibility of this developed system, some experimental results are given in the paper.

scholarly journals IoT Based Voice Controlled Multitasking System for Home

2019 ◽  
Vol 9 (1) ◽  
pp. 4265-4268
Keyword(s):  
Internet Of Things ◽  
Smart Home ◽  
Raspberry Pi ◽  
Family Unit ◽  
Human Voice ◽  
The Family ◽  
Voice Control ◽  
The Voice ◽  
Dedicated Hardware

Internet of Things is a rising innovation that makes our world more astute. In recent years, there has been immense development in the realm of insightful gadgets for home mechanization. Such contraptions are planned so as to facilitate communication among individuals and everyday home obligations. This paper exhibits a voice-controlled smart home with multi-functions using ESP32 as the wireless choice. Voice control (using human voice to control any load like light, fan, ac, geyser, motor etc.). The voice-commands are recognized by a dedicated hardware module and the recognized data is sent to database using ESP32. On the accepting unit, raspberry pi peruses the information from the database and deciphers the directions verbally expressed by the client and controls the family unit apparatuses.

scholarly journals Reading Trauma in History through Post-Conflict Narrative: Thakuri’s “The Descending Mountain”

2020 ◽  
pp. 1-12
Author(s):  
Badri Prasad Pokharel
Keyword(s):  
Civil Society ◽  
Political Development ◽  
Turning Point ◽  
Democratic Movement ◽  
New Era ◽  
Elite Group ◽  
Post Conflict ◽  
History Of ◽  
Perpetrators And Victims ◽  
The Voice

Maya Thakuri’s “The Descending Mountain,” is a testimony of an event that might have happened during the People’s War instigated by the Maoists towards the end of the 20th century. It has unfolded the truth hidden behind the curtain, that is, how Nepal’s geopolitical development in the post-democratic movement has made one mass depart towards the forest and raise the voice against those who were still marginalized in the name of caste, gender and ethnicity; which ultimately caused the death of more than fifteen thousand Nepali citizen and hundreds of thousands other displaced from their own homes. The theme of this article is to show a bitter truth that happened in history - the compulsion of perpetrators and victims to sabotage physically and to mourn in trauma. It is to bring the fact of Nepal’s hinterlands’ people’s history of traumatic life – how much traumatic their life was, as well as the reluctance of the civil society to such grave tale. The end of the twentieth century and the beginning of the new era, in political development to grab the power from the elite group have been remarkable to heed for the historians and academicians to knit the very emotional facts in the form of narratives, which is called here post-conflict narrative. Mrs. Thakuri, to some extent, is successful to weave a plot of a mother and her daughter on the background of the People’s War – a historical turning point in the history of Nepal and narrativize the painful traumatic story to the readers.

scholarly journals Moderate evidence for a Lombard effect in a phylogenetically basal primate

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2328 ◽  
Author(s):  
Christian Schopf ◽  
Sabine Schmidt ◽  
Elke Zimmermann
Keyword(s):  
Auditory Feedback ◽  
Background Noise ◽  
Vocal Communication ◽  
Lombard Effect ◽  
Voice Control ◽  
Mouse Lemurs ◽  
System Properties ◽  
First Time ◽  
The Voice ◽  
Grey Mouse Lemur

When exposed to enhanced background noise, humans avoid signal masking by increasing the amplitude of the voice, a phenomenon termed the Lombard effect. This auditory feedback-mediated voice control has also been found in monkeys, bats, cetaceans, fish and some frogs and birds. We studied the Lombard effect for the first time in a phylogenetically basal primate, the grey mouse lemur,Microcebus murinus. When background noise was increased, mouse lemurs were able to raise the amplitude of the voice, comparable to monkeys, but they did not show this effect consistently across context/individuals. The Lombard effect, even if representing a generic vocal communication system property of mammals, may thus be affected by more complex mechanisms. The present findings emphasize an effect of context, and individual, and the need for further standardized approaches to disentangle the multiple system properties of mammalian vocal communication, important for understanding the evolution of the unique human faculty of speech and language.

Approach to the voice control of IoT objects in “smart house” systems

2021 ◽  
pp. 37-50
Author(s):  
Igor Shostak ◽  
Vitalina Babenko ◽  
Mariia Danova ◽  
Olena Feoktystova
Keyword(s):  
Voice Control ◽  
Smart House ◽  
The Voice
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