Intelligent Shading Control System Based on the Lonworks Bus

2013 ◽  
Vol 273 ◽  
pp. 665-668
Author(s):  
Ai Min Xiong ◽  
Fei Yu Li ◽  
Xuan Xie
Keyword(s):  
Control System ◽  
Control Program ◽  
Building Energy ◽  
Automation System ◽  
Low Carbon ◽  
Temperature Changes ◽  
Building Automation System ◽  
Shading Control ◽  
Seamless Connection ◽  
Indoor Lighting

In order to improve the lighting and temperature control in large public buildings, intelligent shading technology has been growing attention. This intelligent shading control system is based on the Lonworks bus. It uses various sensors to detect indoor and outdoor light intensity and temperature changes automatically, the system provides reasonable the curtain control program to change the height of the curtains and the blade angle, to regulate indoor lighting and air-conditioning, reducing building energy consumption in all aspects. Common TCP / IP protocol is used to achieve a seamless connection with the building automation system. It concerns with energy saving, low carbon, environmental protection, intelligence concept of modern building.

Application of Building Automation System in Building Energy Efficiency

2011 ◽  
Vol 374-377 ◽  
pp. 357-360
Author(s):  
De Xin Zong ◽  
Zhao Xia Wang
Keyword(s):  
Energy Efficiency ◽  
Information Age ◽  
Modern Society ◽  
Building Energy ◽  
High Tech ◽  
Automation System ◽  
Building Energy Efficiency ◽  
Building Automation ◽  
Building Model ◽  
Building Automation System

Building automation is the inevitable product of information age and the modern society, and it is the perfect combination of modern high-tech and building. Making the equipments in the building running automatically in optimal state, building automation system can reduce energy consumption maximally while providing a comfortable environment conditions. This paper makes an energy saving analysis of each important component of building automation system, and establishes a typical office building model, simulating how building automatic system can influence building energy efficiency in four level cases. It hopes to provide some reference for the application of building automation system in building energy efficiency.

scholarly journals COMPUTER SYSTEM FOR CONTROLLING INDOOR LIGHTING

2021 ◽  
Vol 295 (2) ◽  
pp. 40-44
Author(s):  
D. STATSENKO ◽  
◽  
B. ZLOTENKO ◽  
S. NATROSHVILI ◽  
T. KULIK ◽  
...  
Keyword(s):  
Control System ◽  
Remote Control ◽  
Programming Languages ◽  
Computer System ◽  
Control Program ◽  
System Control ◽  
Light Sources ◽  
Lighting Control ◽  
Indoor Lighting ◽  
Room Lighting

The analysis of modern tendencies related to “Smart House” technologies is carried out in this article. The questions of programming languages of microcontrollers and microprocessors are considered. Software products that are used to create mobile applications for smartphones or tablets are presented. A computer system for remote control of room lighting is considered. The design and principle of its operation are shown schematically. A prototype of a computer system that has the following functions: 1) Control, on / off, lighting systems, depending on the needs of the owner of the premises. 2) Transfer of information about the level of illumination to the user, the owner of the premises. 3) Automatic switching on / off of electric, electroluminescent light sources, which are included in the room lighting control system. Photo of the prototype is shown. The principle of operation of the system control program based on the use of a photoresistor is presented. The Arduino microcontroller receives and processes information from the photoresistor, on the basis of which it automatically sends signals to the room lighting control system. The formulas for calculating the illumination using the results of the data obtained from the photoresistor of the prototype are given. The processed information, using wireless networks, goes to the interactive devices of the user, who can remotely check the value of illumination and, if necessary, control it. The visual interface of a mobile application for mobile phones and tablets using the Android operating system is presented. A computer system for controlling the lighting of premises, which is easy to use and does not require significant financial costs, is considered and analyzed. The methods of modeling, observation and research of computer systems are used in the work. The obtained results allow obtaining an effective computer system for remote control of indoor lighting.

Commissioning brownstock washing controls for an evaporator limited mill

TAPPI Journal ◽  
2016 ◽  
Vol 15 (7) ◽  
pp. 459-464
Author(s):  
RICARDO SANTOS ◽  
PETER HART
Keyword(s):  
Control System ◽  
Negative Impact ◽  
Black Liquor ◽  
Pulp Mill ◽  
Control Program ◽  
Separation Point ◽  
Water Control ◽  
Oxygen Delignification ◽  
Percentage Points

An automated shower water control system has been implemented to reduce the volume and variability of weak black liquor being sent from the pulp mill to the evaporators. The washing controls attempt to balance the need for consistent and low soda carryover to the bleach plant with consistently high weak black liquor solids being sent to the evaporators. The washer controls were implemented on two bleachable grade hardwood lines (one with oxygen delignification, one without oxygen delignification) and one pine line. Implementation of the control program resulted in an increase in black liquor solids of 0.6 percentage points for the hardwood lines. Significant foam reduction was realized on the pine line since the pine black liquor solids were able to be consistently maintained just below the soap separation point. Low black liquor solids excursions to the evaporators were eliminated. Bleach plant carryover was stabilized and no negative impact on chemical consumption was noticed when controlling weak black liquor solids to recovery.

POTOMAC

Alloy Digest ◽  
1975 ◽  
Vol 24 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Heat Treating ◽  
General Purpose ◽  
Low Carbon ◽  
Repeated Heating ◽  
Temperature Changes ◽  
Heating And Cooling ◽  
Temperature Performance ◽  
Heat Checking

Abstract POTOMAC is a general-purpose, low-carbon, chromium-molybdenum-tungsten hot-work steel. It has excellent resistance to shock and heat checking after repeated heating and cooling. Potomac is suitable for hot-work applications involving severe conditions of shock and sudden temperature changes. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, and machining. Filing Code: TS-290. Producer or source: Allegheny Ludlum Corporation.

scholarly journals Architecture For Automation System Metrics Collection, Visualization and Data Engineering – HAMK Sheet Metal Center Building Automation Case Study

2019 ◽  
Vol 9 (1) ◽  
pp. 561-570
Author(s):  
Khoa Dang ◽  
Igor Trotskii
Keyword(s):  
System Integration ◽  
Data Analytics ◽  
Building Energy ◽  
Facility Management ◽  
Automation System ◽  
Building Energy Efficiency ◽  
Building Automation ◽  
Automation Systems ◽  
Integration Data

AbstractEver growing building energy consumption requires advanced automation and monitoring solutions in order to improve building energy efficiency. Furthermore, aggregation of building automation data, similarly to industrial scenarios allows for condition monitoring and fault diagnostics of the Heating, Ventilations and Air Conditioning (HVAC) system. For existing buildings, the commissioned SCADA solutions provide historical trends, alarms management and setpoint curve adjustments, which are essential features for facility management personnel. The development in Internet of Things (IoT) and Industry 4.0, as well as software microservices enables higher system integration, data analytics and rich visualization to be integrated into the existing infrastructure. This paper presents the implementation of a technology stack, which can be used as a framework for improving existing and new building automation systems by increasing interconnection and integrating data analytics solutions. The implementation solution is realized and evaluated for a nearly zero energy building, as a case study.

Study on Novel Automatic Steel Bundling Machine Pneumatic Control System

2012 ◽  
Vol 490-495 ◽  
pp. 594-597
Author(s):  
Cheng Qun Li ◽  
Liang Gao
Keyword(s):  
Control System ◽  
Control Program ◽  
Control Flow ◽  
Pneumatic Control ◽  
The Core ◽  
New Type ◽  
Action Process ◽  
And Control

This paper introduces a new type of automatic steel bundling machine for bundling process, which includes a pneumatic action process, mainly do some researches on the pneumatic control system. The system chooses PLC as the core control component, puts forward the hardware of control system and control flow. Eventually we have been designed the control program.

Auto-Tuning Tub-Level Control of Blender in Hydraulic Fracturing

2016 ◽  
Author(s):  
Zheng Chen ◽  
Leslie Cargill ◽  
Brent Naizer
Keyword(s):  
Control System ◽  
Hydraulic Fracturing ◽  
Oil And Gas ◽  
Pi Control ◽  
Automation System ◽  
Control Performance ◽  
Level Control ◽  
Relay Feedback ◽  
System Parameters ◽  
Auto Tuning

Hydraulic fracturing is one of the key technologies for producing shale oil and gas. During hydraulic fracturing, a blender is used to mix sand with water and chemicals to obtain a fluidic mixture that will be pumped down a well to frack rocks. In order to achieve high-quality fracturing during a job, the blender needs to maintain its tub level as well as the density of the fluidic mixture. In this paper, an auto-tuning proportional-integral (PI) control is developed for the blender automation system to maintain the tub level of its fluidic mixture. The control system adopts a single-loop PI with gains that can be auto-tuned during a job. A relay feedback test is conducted for auto-tuning the PI gains online. The auto-tuning PI control has been successfully tested in a blender simulator. Experimental results have shown that the control performance was improved after auto-tuning and that the control system was adaptive to variation in system parameters.

IP-TUNNELING OF KNX BUILDING AUTOMATION SYSTEM AS AN IOT REABILITY STUDY

2021 ◽  
pp. 47-50
Author(s):  
Abdullatif Y. M. Alhatem
Keyword(s):  
Rapid Growth ◽  
Communication System ◽  
Human Life ◽  
The Internet ◽  
Automation System ◽  
Global Communication ◽  
Building Automation ◽  
Building Automation System ◽  
Ip Network ◽  
Technological Developments

At the present time the smart technology enhanced to be utilized for the human life in many elds, especially in the houses. The building automation experienced a rapid growth in techniques and methods to provide an advanced management for operational advantages in buildings and develop the equipment in the houses to the consumption of energy and operation. When the KNX system has been developed to be the most important building automation, the ethernet system has evolved to be global communication system and use it as automation system. Among the various technological developments is IoT, which is the essential development the future achievement via the internet techniques, Meanwhile the different available communication mediums of KNX and the need of utilizing IP network in compiling extensive areas of KNX has led us to conduct this comparison.

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