Development of Intelligent Controlled System for Object Special-Shaped Stone

2012 ◽  
Vol 241-244 ◽  
pp. 1139-1142
Author(s):  
Ming Ming Xiao
Keyword(s):  
Intelligent Control ◽  
Single Chip ◽  
Hardware Platform ◽  
Controlled System ◽  
Intelligent Control System ◽  
Graphic Information ◽  
Cad Cam ◽  
Processing Module ◽  
New Type

A new intelligent control system for a new type equipment of special-shaped stone machining is presented, it can reach high quality of intelligent machining for the special-shaped stone production. The hardware platform use universal IPC as kernel, which consists of IPC, embedded micro-computer system, SCM(Single Chip Micyoco). The CAD/CAM system consists of 3 sub-modules: graphic information processing module, 3-dimention dynamic modeling and simulating module and machining implementing module.

Based on Single Chip Microcomputer Intelligent Bathroom Lighting System Design Research

2014 ◽  
Vol 687-691 ◽  
pp. 3212-3215
Author(s):  
An Bi Qin
Keyword(s):  
Intelligent Control ◽  
Design Research ◽  
Test Results ◽  
Lighting System ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Indoor Temperature ◽  
Intelligent Control System ◽  
Zigbee Protocol ◽  
Detection Circuit

The system test results show that the system modules can run normally. When the infrared detection circuit, Zigbee accept module detects information, microcontroller will drive the relay open the lights and headlamp unit, or shut down. In the display, dot matrix can work normally, can carry on the automatic control the fan, DHT11 sensor to detect the indoor temperature, can work normally. Through repeated tests, ZigBee protocol based on HOLTEK microcontroller remote intelligent control system successfully developed bath bully.

Design of Intelligent Telephone Alarm System with Intelligent Control System

2013 ◽  
Vol 648 ◽  
pp. 281-284
Author(s):  
Juan He ◽  
Shuai Kang
Keyword(s):  
Intelligent Control ◽  
Intelligent System ◽  
Input Circuit ◽  
Alarm System ◽  
Digital Information ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Intelligent Control System ◽  
Signal Input ◽  
Microcomputer Control

The intelligent telephone alarm system is designed with a single chip microcomputer as the core of system,and the intelligent system is controlled by AT89C51. A telephone network is used as transmission of voice digital information in the system. The telephone alarm is composed of a single-chip microcomputer control, sensor and signal input circuit, and DTMF send and receive circuit, voice controlling and receiving circuit, alarm telephone circuit. According to the different sensor output signal, it can send out different alarm information to realize remote monitoring function.

scholarly journals A Combined Analytical Method for Intelligent Control of Friction Damped Structures

2021 ◽  
Vol 29 (4) ◽  
Author(s):  
Kamyar Gharra ◽  
Karen Khanlari ◽  
Jafar Asgari Marnani
Keyword(s):  
Control System ◽  
Intelligent Control ◽  
Analytical Method ◽  
Structural Engineering ◽  
Control Level ◽  
Steel Structures ◽  
Matrix Analysis ◽  
Friction Damper ◽  
Intelligent Control System ◽  
Processing Module

Controlling structures and increasing the prognosis of their behaviour before natural disasters are the most critical issues in structural engineering. To that end, predicting the destructive effects of earthquakes on both acceleration and displacement of structures would be beneficial. This paper suggests an intelligent control system that realises simultaneous control of acceleration and displacement parameters. There are two modules in the system. First, the preserving module aims to estimate the crisis thresholds of acceleration and displacement based on the historical seismic data of each area. Second, the processing module finds the optimum value of the slip load of the friction damper so that both acceleration and displacement are controlled. We introduce an analytical method based on a matrix analysis approach and heuristic algorithm (MAHA) as a core of the processing module. MAHA would analyse the structure response, and the friction damper would determine the optimum slip load. The numerical and software simulation results for various one-bay and two-bay steel structures show that the proposed intelligent control system applies to multiple frictions damped structures under different earthquake records. In addition, a control level of 80% in acceleration and displacement of structures is achieved compared to an uncontrolled state. Moreover, the mentioned system enables the engineers to find appropriate friction dampers during the design of structures.

scholarly journals Publication by association: how the COVID-19 pandemic has shown relationships between authors and editorial board members in the field of infectious diseases

2021 ◽  
pp. bmjebm-2021-111670
Author(s):  
Clara Locher ◽  
David Moher ◽  
Ioana Alina Cristea ◽  
Florian Naudet
Keyword(s):  
Infectious Diseases ◽  
Evidence Based Medicine ◽  
Medical Community ◽  
Board Members ◽  
Evidence Based ◽  
Ripple Effect ◽  
New Type ◽  
Based Medicine

During the COVID-19 pandemic, the rush to scientific and political judgements on the merits of hydroxychloroquine was fuelled by dubious papers which may have been published because the authors were not independent from the practices of the journals in which they appeared. This example leads us to consider a new type of illegitimate publishing entity, ‘self-promotion journals’ which could be deployed to serve the instrumentalisation of productivity-based metrics, with a ripple effect on decisions about promotion, tenure and grant funding, but also on the quality of manuscripts that are disseminated to the medical community and form the foundation of evidence-based medicine.

scholarly journals Influence of Sequential CAD/CAM Milling on the Fitting Accuracy of Titanium Three-Unit Fixed Dental Prostheses

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1401
Author(s):  
Doo-Bin Song ◽  
Man-So Han ◽  
Si-Chul Kim ◽  
Junyong Ahn ◽  
Yong-Woon Im ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Computer Aided Design ◽  
Dental Prostheses ◽  
Computer Aided ◽  
Cad Cam ◽  
Fixed Dental Prostheses ◽  
Gap Data ◽  
Aided Design ◽  
Fitting Accuracy

This study investigated the fitting accuracy of titanium alloy fixed dental prostheses (FDP) after sequential CAD/CAM (Computer Aided Design/Computer Aided Manufacturing) fabrication. A three-unit FDP model connecting mandibular second premolars and molars was prepared and scanned to fabricate titanium FDPs by CAD/CAM milling. A total of six FDPs were sequentially milled in one titanium alloy disk using a new set of burs every time (n = 4). The fitting accuracy of FDPs was mesiodistally evaluated by a silicone replica technique and the measurement was triplicated at four different locations: MO (marginal opening), MG (marginal gap), AG (axial gap), and OG (occlusal gap). Data were statistically analyzed using ANOVA and Tukey’s HSD test. The fitting accuracy of PMMA (polymethyl methacrylate) FDPs milled using the worn or new bur were evaluated by the same procedure (n = 6). The mean dimensions of titanium FDP for all measuring positions, except for AG, were significantly increased from the third milling. However, no difference was noted between the first FDP and the second FDP milled with the same set of burs. Severe edge chippings were observed in all milling burs. Detrimental effects of the worn burs on the fitting accuracy were demonstrated in the CAD/CAM-milled PMMA FDP. The results recommend proper changing frequency of cutting burs to achieve the quality of fit and predictable outcomes for dental CAD/CAM prostheses.

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