The Network based on intelligent control system

The Network based on intelligent control system Intelligent home network With the network technology and communication technology continues to evolve and requirements of people living continuously improve and achieve family intelligent remote control has become an inevitable trend. Ministry of Construction and Housing Industrialization Promotion Center proposed residential area to achieve the six intelligence requirements, including safety precautions implemented automated monitoring and management: on residential fires, toxic gas leak to implement automatic alarm; anti-theft alarm system should be installed such as infrared or microwave various types of alarm detector; system should be integrated with the computer security management system network; computer system burglar alarm system can be centrally managed and controlled. However, as wireless technology immature, operating expenses of higher malpractice, intelligent home controller and the external network of wireless communications technology as leading to a low degree of market acceptance of the important factors, the characteristics of GPRS system can be a good solution to the problem. GPRS network communication business communications company launched a data communication services, the GPRS network coverage area, unlimited transmission distance, communication cost is relatively low transfer rate faster. This article related to intelligent systems and GPRS technology family background, analysis of its basic characteristics and their basic functions to be achieved, and on this basis was proposed based on GPRS wireless home the overall intelligent control system solutions. At last, the core GPRS chip system software and hardware realization.Overall system architecture The popularity of network applications and the production of a variety of information appliances are made within the family visit on the Internet, no longer limited to a single PC, each family will be faced with how to transfer Internet data within the family and how the various appliances problems connecting, based on this, intelligent home networks come into being. Intelligent home network is the basic unit of information society. The future of the family, all kinds of appliances will form a home LAN and Internet access through the smart home controller. Intelligent home network market potential is considerable, several large manufacturers Intel, IBM, Microsoft and Sony are already involved in them.Intelligent home network that is in a home in a communications network, the various appliances connected together, to achieve all the intelligent home network appliances for remote access and control, and any request for information exchange, such as music, television or data. Intelligent home network architecture, including within the family network system, intelligent home controller and the intelligent home network and external Internet networks of data communications. Among them, the smart home smart home network controller is an integral part of the core to play the management, control and communications role with the external network. It is the management platform and home through the family life of the combination of the various subsystems of a system is to connect the family intelligence network inside and outside the physical interfaces, complete with external communication networks within the family, the data exchange between functions, but also for familiesequipment management and control.Smart home controller on the one hand the need for cabling to provide communication interface within the family, to collect information on household equipment, and processing, automatic control and regulation; other smart home controller as a home gateway, to provide for external network interfaces, connectivity within the family network and external Internet networks, so users can access the home network, internal network, to achieve monitoring and control. In addition, smart home controller should also be equipped with automatic alarm and other functions, that is, when found, such as alarm signal: it was a malicious intrusion, high temperature, etc., the controller can be dealt with immediately send alarm signals to the user.Shown in Figure , intelligent home control for the core of the system. ARM embedded system design can be used to automatically run, processing of data, management and control through the RS485 bus, the control terminal. And the controller through the GPRS module to achieve the family system and the external network communications, so users can SMS and the Internet, etc. to achieve the family system, remote control, while the controller through the keyboard and display for the user interface, easy users to achieve local control. Control terminal for the SCM control system composed of a number of small control various home appliances, and by controlling the bus, the control system composed of these small networks, connected to the smart home controller, by the smart home controller.Specific smart home controller features include: Household equipment data collection: Collection of household equipment, including indoor temperature, lighting appliances, security doors and other equipment of the state data, processed by the controller feedback to the user.Local control: the user through the controller keyboard and display, for home monitoring equipment.Remote Control: Remote users can send text messages or via the Internet on the family system to control and query.Automatic alarm: when the controller detects high temperature, such as illegal intrusion or alarm signal, triggering indoor alarm in time and send alert messages by means of promptly notify the user.Temperature check: the user can check the room temperature by the controller. Security door password settings: local or remote user can modify the password security door, enter the correct password at the door before they can open the door.Infrared Appliance Control: receiving user commands via infrared transmitter control TV, air conditioning and other infrared controlled appliances.Other lamps and so on-off control: receiving user commands control the amount of lighting and other switching equipment.Smart home controller through GPRS module, to achieve the family system and the external network communication as a central part of the smart home system to solve the bottleneck before the key technology. GPRS (General Packet Radio Service) is short, the existing GSM system is to add a new GGSN (Gateway Support Node) and SGSN (Service Support Node) node developed a new packet data bearer services. GPRS with the existing GSM system the most fundamental difference is, GPRS is a packet switching system, particularly suitable for intermittent, sudden or frequent, small amounts of data transfer, but also to the occasional large data transfers. The main advantage of GPRS network transmission are: always online, according to traffic accounting, quick log on, high-speed transmission, within a restricted range (transmission distance, terrain, weather, etc.), data transmission reliability.The booming Internet has broadened the traditional concept of smart consumer appliances. Originally, smart consumer appliances are just stand-alone devices that have the control program running by themselves. Due to hardware limitations, these appliances can only implement some simple control algorithms that can at most achieve local optimal control effects. On the other hand, Hardware implementation of control systems will be one of important issues in the development of smart consumer electronics. For simple applications, such as smart toys, microwaves, and washing machines, simple control algorithms can be used and implemented on a single chip that may cost very little. However, for more complex problems, such as smart heating, ventilation, and air conditioning (WAC) for individual houses or office buildings, advanced control methods must be utilized and implemented with sophisticated hardware that would cost significantly more than the conventional controllers. For example, an intelligent PLC (programmable logic controller) for energy efficient and waving temperature control may cost several times more than a household air conditioning unit. This might be justified for some industrial applications but obviously not acceptable for average individual customers. Therefore, to make smart consumer electronics marketable for this type of applications, innovative approach for implementation must be established to reduce the cost to a level acceptable to average customers.In the following sections, the architecture of intelligent control systems for consumer appliances via Internet is briefly presented, and then a network-basednemo-fuzzy implementation is described.Architecture of Networked AppliancesFigure shows two versions of architecture for networked appliances. Both architectures can be seen composed of two different types of functional devices: home-based appliances, and remote controllers. The remote controllers in both architectures play the same role as: a) running advanced control algorithms and issue control commands; b) monitoring the running status of appliances.The difference between these two architectures is on the home side. In architecture (I), home appliances must first connect to Home Control System, which functions in part as a common gateway to the Internet for all appliances. This architecture is suitable for current implementation because networked appliance is still in its early stage of development; they are still lack of standard software and hardware interfaces to the Internet. Besides, the data exchange between home appliances and remote controller at current stage are limited, therefore the utility lines and phone lines are enough for transmitting simple control signals. Architecture (II) is the choice for future development while all home appliances have direct access to the Internet. In this case, large amounts of real-time data from home appliances can be fed back to remote controller as the control input through Internet, and control output, which could vary from simple control parameters or set values to updated algorithms, can also be downloaded to the corresponding appliances.The architectures proposed here have their origins in Distributed Control Systems (DCS), which is widely used in industrial automation and proved to be mature and reliable. From topology point of view, the networked appliances systems and DCS are similar, and those functional devices in networked appliances systems can also find their counterpart in DCS. But a significant difference lies in the fact that DCS uses proprietary communication protocols in a local area network for data exchange, thus it is not an open architecture that makes devices from different vendors very difficult, if it’s not impossible to be interconnected, while networked appliances systems rely on the Internet that uses TCP/IP, the de facto protocol for network communication, so any applance that is TCP/IP compatible can be easily interconnected and communicate with other appliances that are already on the net.To the home environment, and a network-based neuro-fuzzy implementation of this architecture. The basic idea of this implementation is to use simple and reliable in-system programmable devices for on-line field control execution with fuzzy logic, and communication networks and computers for off-line learning and optimization through neural networks. An ongoing research project in consumer electronics is to implement this architecture to the network- based intelligent control of smart heating and air-conditioning systems, which could lead to significant saving in energy and reduction in pollution.。