KR20010028882A - System for Monitoring and Controlling Electric Appliances - Google Patents

Abstract

PURPOSE: A system for monitoring and controlling electric equipments is provided to achieve a network covering electric equipments having no network ports at low cost, and to grasp and control an action state of each electric equipment from the inside or outside of a house. CONSTITUTION: A system for monitoring and controlling electric equipments(42a,...,42k) comprises a control unit(32), an infrared rays receiver(34a,34b,...,34n), and an infrared rays transmitter(36a,36b,...,36n). The infrared rays receivers receive a first infrared rays signal showing at least one of the infrared rays signal of a remote controller(40a,...,40m) and the infrared rays state signal to output a first electric signal corresponding to the first infrared rays signal. When the first electric signal corresponds to the infrared rays signal, the control unit outputs a second electric signal same with the first electric signal to a part of the infrared rays transmitters. Thereby the infrared rays transmitters output a second infrared rays signal substantially same with the first infrared rays signal. In the case of that the control unit is connected to an outside host via an internet, the host controls and monitors a certain action of the electric equipment at a remote place via a communication network and the control unit. Also, when the control unit is connected to a local area network constructed in a home or an office building, the infrared receiver and the infrared transmitter are additionally interfaced to the local area network.

Description

System for Monitoring and Controlling Electric Appliances}

FIELD OF THE INVENTION The present invention relates to electrical equipment monitoring and control systems, such as, for example, home automation systems, and more particularly, to a system that enables monitoring and control of the operation of electrical equipment at remote locations.

In general, a home automation system refers to a system that can control home appliances installed in a home using a computer at home or remotely. According to such a home automation system, it is possible to perform household chores such as cooking, washing, cleaning, etc. by using a computer or outside the home without a direct operation of each household appliance. can do.

In particular, as the Internet has evolved and the area of the network mainly used by corporations has been gradually extended to the home, home appliances in the home have been integrated to create a home office environment and to effectively and effectively implement home automation. Research on technology standardization to integrate into a network is also actively conducted. The development of this home networking technology is being carried out by standardization groups and working groups such as 'Home RF Working Group', VESA, and 'Home PNA'. Among them, the Home RF Working Group is developing a protocol that enables wireless data transfer between home devices, while VESA is focused on developing home networking technologies that integrate personal computers, peripherals and consumer electronics based on the web. PNA is focusing on developing home network equipment with bandwidth expansion.

However, the home network system that these groups are conducting research on is to connect personal computers, video phones, and game machines, which are usually referred to as electric appliances, and the study focuses on the interfaces between incompatible devices. It is aligned. In particular, the conventional approach to home networking presupposes installing a network port on each of these electronics to interface those electronics that require control or status monitoring within the home.

Therefore, the home network system currently being developed is suitable only for electronic products having a network interface port according to a newly established standard, and products already on the market are not yet considered. In addition, the electronic products suitable for such a home network system are expected to be considerably higher in price than those currently in use, thereby increasing the economic burden on the consumer.

The present invention has been made to solve the above-described problems, it is possible to build a network encompassing electrical equipment without a network port at a low cost, the operation state of each electrical equipment in the house from the outside of the house as well as the house The technical problem is to provide an electric equipment monitoring and control system that can be used to identify and control the operation of each device.

1 is a block diagram of one embodiment of an electrical device monitoring and control system according to the present invention;

FIG. 2 is a detailed block diagram of the controller shown in FIG. 1. FIG.

3 is a detailed block diagram showing any one of the infrared receivers shown in FIG.

4 is a detailed block diagram illustrating any one of the infrared transmitters shown in FIG. 1.

5 is a view illustrating an example in which an infrared transceiver housing housing a plurality of infrared transmitter-receiver pairs is installed on a ceiling of a building;

6 is a detailed block diagram of the web host shown in FIG.

7 is a diagram illustrating an example of an indoor device registration screen provided by a web host.

8 is a diagram showing an example of an alarm message setting screen provided by a web host.

FIG. 9 illustrates an example of a process in which a controller mediates a remote controller signal to another room in the system illustrated in FIG. 1.

FIG. 10 illustrates an example of a process in which an event generated in a home is reported to a web host through the Internet in the system shown in FIG.

FIG. 11 is a diagram illustrating an example of a process in which a home device is remotely controlled through the Internet in the system shown in FIG.

12 is a block diagram of another embodiment of an electrical device monitoring and control system according to the present invention.

13 is a detailed block diagram of the controller shown in FIG. 12;

14 is a block diagram of another embodiment of an electrical device monitoring and control system in accordance with the present invention.

15 is a detailed block diagram of the sub-controller shown in FIG.

FIG. 16 is a diagram illustrating an example of a process in which a main controller and a sub controller relay a remote controller signal to another room in the system shown in FIG. 13.

FIG. 17 illustrates an example of a process in which an event generated in a home is reported to a web host through the Internet in the system shown in FIG.

FIG. 18 illustrates an example of a process in which a home appliance is remotely controlled through the Internet in the system shown in FIG.

19 is a block diagram of another embodiment of an electrical device monitoring and control system in accordance with the present invention.

The electrical device monitoring and control system of the present invention for achieving the above technical problem controls the operation of the electrical device by the infrared link and monitors its operation.

Each of the first predetermined number of infrared receivers receives a first infrared signal representing one of the infrared remote control signal and the infrared status signal and outputs a first electrical signal corresponding to the first infrared signal. Each of the second predetermined number of infrared transmitters receives a second electrical signal and outputs a second infrared signal corresponding to the second electrical signal. The control unit receives the first electrical signal from the first predetermined number of infrared receivers, and when the first electrical signal corresponds to the infrared remote control signal, outputs a second electrical signal that is identical to the first electrical signal. By outputting to at least some of the second predetermined number of infrared transmitters, the infrared transmitters that receive the second electrical signal output the second infrared signal substantially the same as the first infrared signal.

In a preferred embodiment, the control unit comprises a first storage means, a central processor and an interface means. The first storage means stores infrared remote control signal information and a predetermined program defined for devices operating in response to the infrared remote control signal. The central processor determines whether the first electrical signal corresponds to the infrared remote controller signal based on the infrared remote controller signal information, and when the first electrical signal corresponds to the infrared remote controller signal, compares the first electrical signal with the first electrical signal. Output the same second electrical signal to at least some of the second predetermined number of infrared transmitters. The interface means interfaces the first predetermined number of infrared receivers and the second predetermined number of infrared transmitters to the central processing unit. In particular, the infrared receivers and the infrared transmitters are configured in the same number, and are installed in pairs one to one.

In addition, the control unit may further be connected to the local LAN by further comprising a first network interface means for connecting to the predetermined local LAN. In addition, in a preferred embodiment, the control unit can also be connected to an external host via a communication network such as the Internet. In this case, the host may remotely control the operation of at least some of the electrical devices and monitor the operating state of at least some of the electrical devices via the control unit via the communication network.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. In the drawings and the following description, the same or corresponding parts are denoted by the same reference numerals and description thereof will be briefly described.

1 shows an embodiment of an electrical device monitoring and control system according to the present invention. The electric equipment monitoring and control system is constructed based on the Internet (1), and monitors the status of the web host 10, the sub-system 30 installed in each house, and the electric equipment inside the house from outside the house. A client computer 20 for monitoring and controlling the operation of each electrical device. The indoor subsystem 30 includes a controller 32, a plurality of infrared receivers 34a-34n and infrared transmitters 36a-36n connected to the controller 32, and remote controllers 40a-40m. ), Electrical devices 42a-42k, sensors 44a-44j, and an alarm generator 46.

The web host 10 sends a control message for remotely controlling the operation of the electrical devices 42a-42k in response to the device status information from the premises subsystem 30 or in response to a request from the client computer 20. Transmit to the controller 32. In addition, the web host 10 may alert the client computer 20, the mobile phone, or the pager of the user in response to the device status information from the subsidiary system 30, and may send an alarm message to a fire department or a security service company. Can also be transmitted. Meanwhile, the user may access the web host 10 through the client computer 20 to check the status of the devices installed in his house or control the operation of a specific device.

In a preferred embodiment, such a service of the web host 10 may be operated on a membership basis. A user who wants to be provided with the service from the web host 10, that is, a resident of the premises subsystem 30, uses the client computer 20 to access the premises subsystem 30 and the electrical devices 42a-42k via the Internet 1. ) And sensors 44a-44j may be registered with the web host 10. The web host 10 maintains and monitors data on the types and specifications of the electric devices 42a-42k and the sensors 44a-44j therein for each registered indoor subsystem 30. And remote control. The client computer 20 may be installed, for example, in a user's office and / or home.

In the indoor subsystem 30, the electrical devices 42a-42k are devices that can be controlled by a remote control such as televisions, video cassette recorders, audio, computers, rice cookers, air conditioners and boilers. On the other hand, the remote controllers 40a-40m are those which are independently provided by the corresponding manufacturers for each of the electric devices 42a-42k. However, some of the remote controllers 40a-40m may be integrated remote controllers capable of selectively operating a plurality of electric devices.

In order to control any one of the electrical devices 42a to 42k, a system user living in a house can directly press a button provided on the front of the electrical device or operate the remote control corresponding to the electrical device. Can be controlled. In the case where the remote control is to be used to control the electric device, the user does not necessarily have to operate the remote control in a room in which the electric device is installed, and may operate the remote control in another room. At this time, the infrared signal generated by the remote control is received by the infrared receiver 34a-34n in the room where the user is located and transmitted to the controller 32. The controller 32 transmits the signal received from any of the infrared receivers 34a-34n to all the infrared transmitters 36a-36n so that the infrared transmitters 36a-36n have the same infrared signal pattern as the original infrared signal. Allow copying. Accordingly, the electric device corresponding to the remote controller can be controlled regardless of the position where the user operates the remote controller. On the other hand, in another embodiment of the present invention, instead of allowing the controller 32 to relay the infrared signal pattern to all infrared transmitters 36a-36n, only the specific transmitter (s) may be programmed to mediate it.

The sensors 44a-44j are for example installed in a boiler, an air conditioner or an intrusion alarm device. Each of these sensors 44a-44j collects data regarding the operational state of the device. In a preferred embodiment, an infrared transmitter is provided for each of the sensors 44a-44j so that the collected data can be transmitted in the form of an infrared signal. The transmitted signal is detected by any one of the infrared receivers 34a-34n and transmitted to the controller 32. The controller 32 analyzes the received data and transmits a control message to the device in which the sensor is installed or transmits status information to the web host 10 via the Internet. Also, as described below, the controller 32 may operate the alert generator 46 in response to the data received from the sensors 44a-44j.

The alarm generator 46 generates an alarm for an abnormal state of the sensors 44a to 44j or the device to which the sensors 44a to 44j are attached under the control of the controller 32. In a preferred embodiment, the alarm generating unit 46 includes a speaker and a warning light, and a light emitting element provided corresponding to each sensor. The speaker sounds an alarm when a signal informing of an abnormal object intrusion from the intrusion alarm sensor is transmitted to the controller 32, wherein the warning light is in a light emitting state. The speaker may also beep when the controller 32 is not operating normally. Each light emitting device emits light or blinks when the sensor operates abnormally or when communication with the controller 32 is not smooth. On the other hand, in another embodiment of the present invention, the speaker of the alarm generating unit 46 may issue a recorded voice alert message.

FIG. 2 shows the controller 32 shown in FIG. 1 in detail. The controller 32 includes a ROM (ROM) 50, a central processing unit (CPU) 52, a RAM (RAM) 54, a network adapter 56, an electrical device interface unit 58, and a display unit 60.

The ROM 50 stores operating system (OS) and application programs for the CPU 52 and remote control signal pattern data for the electrical devices 42a-42k. As the ROM 50, an EEPROM is used, and a flash memory may be used instead of the EEPROM. In a preferred embodiment, the programs and data stored in ROM 50 may be set or updated by a web host 10 operator or by a client computer 20 user over the Internet. On the other hand, in another embodiment of the present invention, the remote control signal pattern data stored in the ROM 50 may include a pattern defined by the user. In this case, the infrared signal pattern emitted by each of the sensors 44a to 44j or other light emitting devices may also include the light emitting pattern having the same shape as the user-defined pattern. You can give effects to the system.

The CPU 52 interprets an infrared (IR) protocol of signals received from each infrared receiver 34a-34n via the electrical device interface 58, retransmits the signal to the infrared transmitters 36a-36n and mediates. Or report the information contained in the signal to the web host 10. In addition, the CPU 52 may issue an alarm to the user through the alarm generator 46 when a specific situation occurs. Here, when the signal from the infrared receivers 34a-34n is a remote control signal for controlling a specific electric device, the CPU 52 retransmits the signal to the infrared transmitters 36a-36n. At this time, in order to prevent the same remote control signal from being applied to the electric device twice, the CPU 52 retransmits the received signal only to the infrared transmitters installed in the rooms other than the room where the infrared receiver is first recognized. You may. On the other hand, when the signal from the infrared receivers 34a-34n indicates the state of a specific electric device, the CPU 52 transmits a control signal for controlling the electric device in response to the device state information. And a network packet outputted through the infrared ray transmitting unit or added with a header according to the TCP / IP protocol to the status signal to the web host 10. Whether the CPU 52 outputs a control signal to a corresponding port of the electrical device interface unit 58 for a specific event, issues an alarm via the alarm generating unit 46, or network via the network adapter 56. Whether or not the packet is to be transmitted to the web host 10 is determined by a program stored in the ROM 50.

The RAM 54 stores data on the data bus 62 or outputs the stored data to the data bus 62 in response to an address signal applied through an address bus (not shown). The data stored in the RAM 54 may include, for example, temporary data generated during the operation of the CPU 52, message data received from the web host 10 through the network adapter 56 or to be transmitted to the web host 10. And remote control signal pattern data transmitted and received between the CPU 52 and the electrical device interface 58.

In a preferred embodiment, message data from web host 10 is received via network adapter 56 and stored in RAM 54, where RAM 54 is accessed by DMA. At this time, the CPU 52 is in a standby state. On the other hand, in another embodiment of the present invention, a separate buffer is provided in the network adapter instead of adopting the DMA scheme. In this embodiment, the data received from the web host 10 is temporarily stored in the buffer so that the CPU 52 can later read this data after generating an interrupt request.

The network adapter 56 transmits message data to the web host 10 in accordance with the network protocol. The network protocol may for example be a TCP / IP protocol. The header added during packet encapsulation is supplied by a program processed by the CPU 52. The formed packet is transmitted to the web host 10 via the Internet. In addition, the network adapter 56 may selectively accept only packets in which the target address is set to the indoor system among the packets received from the web host 10. The received packet is stored in the RAM 54 and then the information is restored by the CPU 52 (Decapsulation).

In a preferred embodiment, a modem with ISDN-TA or wake-up may be used to connect the controller 32 to the Internet, which are not shown in FIG. 1 or FIG. 2. In this case, the modem can be turned on only when there is data to be transmitted and received via the Internet, thereby allowing the user to save phone charges. However, in another embodiment of the present invention, the controller 32 may be connected to the Internet in a LAN form by a dedicated line or HDSL.

The electrical equipment interface 58 receives the remote controller signals sampled by the infrared receivers 34a to 34n, converts the signals into binary data, and sends them to the RAM 54. In addition, the electrical device interface 58 receives data to be transmitted from the controller 32 to the infrared transmitters 36a-36n from the RAM 54, converts the format of the data into a sampled remote control signal, and transmits the infrared transmitter. To 36f-36n. However, in another embodiment of the present invention, the electrical device interface 58 may receive the unsampled remote control signal from each of the infrared receivers 34a to 34n and then perform sampling in hardware or software. have. In this embodiment, the signal output from the electric machine interface unit 58 to the infrared transmitters 36a-36n also becomes an unsampled remote control signal. In addition, the electrical device interface 58 allows the alarm generator 46 to interface with the CPU 52.

FIG. 3 shows a preferred embodiment of any one of the infrared receivers 34a-34n shown in FIG. 1. Each infrared receiver portion includes a light receiving element 64 and a reception control portion 66. The light receiving element 64 is composed of a photodiode or a phototransistor and photoelectrically converts a received remote control signal into an electrical signal. The reception control unit 66 samples the output signal of the light receiving element 64 and supplies the sampled signal to the electric device interface unit 58 of the controller 32. Meanwhile, FIG. 4 shows a preferred embodiment of any one of the infrared transmitters 36a-36n shown in FIG. 1. Each infrared transmitter includes a transmission controller 68 and a light emitting element 69. The transmission control unit 68 switches the current supplied to the light emitting element 69 in response to a signal supplied from the electric device interface unit 58 of the controller 32. The light emitting element 69 is composed of a light emitting diode, and emits an infrared remote control signal forward by emitting light in response to a supplied current.

In a preferred embodiment, one infrared transmitter and one infrared receiver are paired and housed in a housing installed on the ceiling or wall of each room in the house. In this case, in consideration of the directivity of the infrared transmitter and the infrared receiver, a plurality of infrared transmitter-receiver pairs may be installed in one scheme. In this case, it is preferable that a plurality of infrared transmitter-receiver pairs installed in one room be installed in one housing. However, of course, in another embodiment of the present invention, each infrared transmitter and infrared receiver may be installed in separate housings.

FIG. 5 shows an example in which a plurality of infrared transmitter-receiver pairs are accommodated in one infrared transceiver housing 70. When a plurality of infrared transmitter-receiver pairs are accommodated in one infrared transceiver housing 70 as described above, infrared signals received at various angles can be detected, and the infrared signals can be emitted in a wide angle range. As described above, in the system of the present invention, since the controller 32 intermediately transmits the remote control signal received from one of the infrared receivers 34a-34n to all the infrared transmitters 36a-36n, the infrared transmitter These 36a-36n will copy the same infrared signal pattern.

Meanwhile, in FIG. 2, all or part of the ROM 50, the CPU 52, the RAM 54, and the electrical device interface unit 58 may be included in one ASIC. In this case, the CPU 52 may include, for example, an ARM. Embedded CPU cores such as CPU may be used. On the other hand, the display unit 60 displays the operation state of the controller 32 and each electric device. In the preferred embodiment, the display unit 60 is composed of a liquid crystal display (LCD) or a light emitting device (LED) array and is installed on the front of the controller 32 or on the living room wall of the home.

FIG. 6 shows the web host 10 shown in FIG. 1 in more detail. The web host 10 includes a worldwide web server 80 (hereinafter abbreviated as 'web server'), an application program 82, a database management system (DBMS) 84, and a database 86. The web server 80 is a program for the host system 10 operator to store, manage, control, and distribute materials in order to provide information services through the Internet 1, in particular, the World Wide Web (WWW). In the hardware on which the web server 80 is loaded, a plurality of web pages written in hypertext markup language (HTML) are loaded together so that the web server 80 can provide such web pages in response to a user's request. It is. In the system of the present invention, the web pages include, for example, a system introduction, membership registration guide, each member's home equipment selection and setup, reservation control, home equipment status check, and the like, and other various guide information. The specific contents of the web pages may be dynamically changed through an interface with the application program 82.

The application program 82 is executed in association with the web server 80 by an application program interface (API). The application program 82 receives data from the web server 80 or reads data from the database 86 through the DBMS 84 to perform necessary tasks. The tasks that the application 82 performs include managing member information, monitoring and controlling the status of devices included in each member's home sub-system, accepting reservation control requests of each member, and fire departments, public offices or security service companies regarding emergency situations. For example, to the public. The application program 82 transmits the data generated or acquired as a result of the operation to the web server 80 or stored in the database 86.

DBMS 84 is a relational database management system (RDBMS), and is implemented using Oracle, Informix, or MS SQLserver. The database 86 includes a unit database such as a member DB, an electric device DB, a member home device DB, an alarm target institution DB, and these DBs store data or output stored data under management of the DBMS 84. The member DB stores personal information about each member and information on contact and billing. The electrical device DB stores the specifications of all the electrical equipment marketed in Korea, in particular, the remote control signal pattern data for each equipment that can be controlled by the remote control. The member indoor device DB stores information about electric devices included in the indoor sub-system 30 of each member and control setting data for each electric device. The agency database for alarm stores the contact information of the nearest fire department and the security service company selected by each member.

Hereinafter, installation and operation of the electric device monitoring and control system of FIG. 1 will be described. A user or contractor wishing to install an electrical appliance monitoring and control system first installs an infrared transceiver housing 70 as shown in FIG. 5 on the wall or ceiling in every room or in some rooms of the home. In addition, the controller 32 is installed in the house, the controller 32 may be installed in the internal space of any one of the infrared transceiver housings 70, or may be installed near the wall or the interphone of the boiler room.

After the hardware is installed in the home, the user accesses the web host 10 through the client computer 20 and registers the type of home equipment installed in his home. FIG. 7 illustrates an example of a screen displayed on a client computer when a user wants to register a type of indoor device installed in his / her home with a web host. The user can register the electric device by selecting a company and a model for each electric device. In this case, when two or more electric appliances of one type are installed in the home, for example, when two or more televisions are installed, all the devices may be registered by pressing the "add" button. When the device registration is completed, the web host 10 downloads the remote control signal pattern data for the registered device to the controller 32 of the indoor sub-system 30, and the downloaded data is stored in the ROM of the controller.

On the other hand, the user can set a message to be notified of the occurrence of a special situation in the state connected to the web host 10 through the client computer (20). 8 shows an example of an alarm message setting screen. Such a setting screen is provided in the form of a web page in the web host 10 corresponding to emergency situations that may occur in the indoor sub-system 30 so that each user can selectively call and register it. The setting screen of FIG. 8 shows a state in which data is input in order to be notified of an alarm message for room temperature. In the illustrated example, the user may set a temperature value at which the alert message is transmitted, a message transmission method, and a specific message content. If the room temperature reaches the set temperature, the web host 10 notifies the user of the set message.

In this state of hardware installation and usage configuration, the system operates as follows. First, in the system of Figure 1, a user in the home can use the remote control regardless of the position. 9 shows an example of a process in which the controller 32 mediates a remote control signal to another room. The illustrated example shows a case where a user in the home room controls the television 42b in the living room by operating the television remote control 40a. In this case, the infrared control signal emitted from the television remote control 40a is received by the infrared receiver 34a in the back room and transmitted to the controller 32. The controller 32 relays the control signal received from the infrared receiver 34a to all infrared transmitters. Accordingly, the infrared transmitter 36b in the living room receives the mediated control signal and reproduces the infrared control signal, and in response thereto, the television 42b can be controlled. Although described as an example of a television here, in the system according to the present invention, all the home electrical equipment that can be operated by the remote control can be controlled by the remote control in another room through this process. On the other hand, it has already been described that the remote control does not necessarily have to be a universal remote control.

FIG. 10 shows an example of a process in which an event generated in a home is reported to a web host through the Internet in the system shown in FIG. 1. The infrared receiver 34c that receives the infrared status signal photoelectrically converts the infrared status signal and outputs an electrical status signal. The controller 32 receives the status signal and analyzes it to determine whether to control the device directly, to issue an alarm through the alarm generator 46, or to report to the web host 10. If the status signal is of a kind programmed to report to the web host 10, the controller 32 constructs a data packet according to the TCP / IP protocol for the status signal and transmits it to the web host 10 via the Internet. Done. The web host 10 transmits a control message to the controller 32 in response to the received state data frame, or alerts as previously set. On the other hand, the infrared status signal is mainly generated by the sensors 44a-44j installed in a boiler, an air conditioner, or an intrusion alarm device, but may be generated by other devices or generated by a user in the home using a remote controller. It may be.

FIG. 11 shows an example of a process in which a home appliance is remotely controlled through the Internet in the system shown in FIG. 1. The web host 10 may transmit a remote control signal frame to the controller 32 of the indoor subsystem 30 through the Internet. Here, the remote control signal frame is generated in response to a status data frame received from the controller 32 or in response to a request of the client computer 20. The controller 32 releases the packet for the remote control signal frame and interprets the contents to control whether the content of the remote control event is a program or program data for the controller 32 itself or for controlling any one of the indoor devices. Determine whether or not. If it is determined that the content of the remote control event is for controlling the indoor device, the controller 32 transmits a remote control signal to the infrared transmitters 36a-36d. Accordingly, the electric device 42d to be controlled can be controlled according to the infrared remote control signal from the infrared transmitter 36d in the room.

As such, the monitoring and control system illustrated in FIG. 1 may provide a service for user convenience with respect to a specific event as defined by the user, and also provide a reservation service in control and user notification of each home electrical device. can do. For example, when a fire breaks out in the house, a notification can be made to a user's terminal such as a user's mobile phone, a pager, a client computer, or the like, and an alarm can be issued through the home alarm command unit 46. Alarms can also be given to management offices and fire departments. In addition, even when the burglar alarm sensor is activated, the user can be notified to a user's terminal such as a user's mobile phone, pager, or client computer, or an alarm can be issued through the home alarm command unit 46. At the same time, alarms can be issued to apartment management offices, security service companies and police boxes. In addition, since the system is built on the Internet, it is possible to access the subsidiary system anywhere in the world to check the status of the devices or to control their operation.

12 shows another embodiment of an electrical device monitoring and control system according to the present invention. In the system shown in FIG. 12, the indoor subsystem 130 includes a controller 132, a plurality of infrared receivers 34a-32n and infrared transmitters 36a-36n connected to the controller 132. And remote controllers 40a, electrical devices 42a, sensors 44a-44j, and an alarm generator 46. In addition, an internal local area network (LAN) 170 is connected to the controller 132. The local LAN 170 is connected to a plurality of computers 172 and 174, and various information devices such as a printer 176 and a video telephone 178. On the other hand, although not shown, in the present embodiment, the local LAN 170 may include a hub for connecting a plurality of information devices. However, in another embodiment in which the present embodiment is modified, the local LAN 170 may be constructed by a media sharing method using IEEE1394 or USB. In such a local LAN 170, each information device can exchange data with each other, and can also transmit and receive data with an external device through the Internet.

FIG. 13 shows the controller 132 shown in FIG. 12 in detail. The controller 132 includes a ROM 50, a CPU 52, a RAM 54, an electrical device interface 58, a display 60, a first network adapter 156 and a second network adapter 164. do. The first network adapter 156 forms a packet by the network protocol for the message data to be transmitted to the web host 10, and transmits the formed packet through the Internet. In addition, the first network adapter 56 selects only the one whose target address is set to the address of the indoor sub-system 130 among the network packets received through the Internet, and stores the result in the RAM 54 so that the CPU 52 can do so. Will be referenced.

Meanwhile, the second network adapter 156 allows the controller 132 to communicate with devices connected to the local LAN 170. When data is to be transmitted from the controller 132 to any of the devices connected to the local LAN 170, the second network adapter 156 constructs a frame according to the LAN protocol, for example, the Ethernet protocol, to configure the local LAN 170. ), So that the data frame can be delivered to the device through the hub. On the other hand, when there is a frame whose target address is set to the address of the controller 132 among the data frames received through the local LAN 170, the second network adapter 156 transmits the data through the data bus 62 to the RAM 54. ) So that the CPU 52 can refer to it.

In the indoor sub-system 130, when there is data to be transmitted from the computer 172 connected to the local LAN 170 to a system outside the indoor sub-system 130, such data is in accordance with the LAN protocol. It is stored in the RAM 54 of the controller via the second network adapter 156. The data stored in the RAM 54 is converted into a network packet by the first network adapter 132 under the control of the CPU 52 and then transmitted over the Internet. On the other hand, upon receiving the data transmitted to the computer 172 from an external system, the first network adapter 132 first detects the data based on the target address on the network packet and stores the data in the RAM 54. Data stored in the RAM 54 is transmitted to the computer 172 through the second network adapter 132 under the control of the CPU 52.

As such, in the present embodiment, the controller 132 allows the network to be configured in the home, and also acts as a gateway for providing a network interface between the local LAN and the external LAN in the house. On the other hand, in the present embodiment, the programs and data stored in the ROM 50 can be updated by the web host 10 operator or the client computer 20 user via the Internet, but are changed by the computer 172 or 174. May be Other features of the system shown in FIG. 12 and the controller shown in FIG. 13 are similar to those described with reference to FIGS. 1 and 2, and thus detailed description thereof will be omitted.

14 shows another embodiment of an electrical device monitoring and control system according to the present invention. In the illustrated system, the indoor subsystem 230 includes a main controller 232, a plurality of infrared receivers 34a-32n and infrared transmitters 36a-36n connected to the controller 232, Remote controllers 40a, electrical devices 42a, sensors 44a-44j, and an alarm generator 46 are included. In addition, an internal local LAN 270 is connected to the main controller 232. This configuration of the indoor sub-system 230 is similar to that shown in FIG. By the way, in FIG. 14, the sub-controller 274 for connecting the infrared transmitter and infrared receiver to the local LAN 270 is further connected. Such a configuration is suitable when the number of ports of the electric machine interface portion of the main controller 230 is smaller than the number of the infrared transmitter or the infrared receiver to be connected to the main controller 23. According to the number of infrared transmitters or infrared receivers to be connected, a plurality of sub-controllers 274 may be connected to the local LAN 270.

In a preferred embodiment, master controller 232 has the same configuration as shown in FIG. On the other hand, the sub-controller 274 has a slightly different configuration than the main controller 232, an example of the sub-controller 274 is shown in FIG. Referring to FIG. 15, the sub controller 274 includes a ROM 280, a CPU 282, a RAM 284, an electric device interface unit 288, a third network adapter 286, and a display unit 290. .

The ROM 280 stores an operating system (OS) and an application program for the CPU 282 and remote control signal pattern data for electric devices. Programs and data stored in the ROM 280 may be updated by the web host 10 operator or the client computer 20 user via the Internet, or may be changed by the computer 172. The CPU 282 interprets an infrared (IR) protocol of signals received from each infrared receiver 334a-334n through the electrical device interface 288, and retransmits the signal to the infrared transmitters 336a-336n or signals The information contained in the main controller 232 will be reported. Whether the CPU 282 outputs a control signal to a corresponding port of the electrical device interface unit 288 or transmits a network packet to the master controller 232 for a specific event is determined by a program stored in the ROM 280. Lose.

The RAM 284 stores data on the data bus 292 or outputs the stored data to the data bus 292 in response to an address signal applied through an address bus (not shown). The data stored in the RAM 284 may be, for example, temporary data generated during an operation of the CPU 282, received from the main controller 232 through the third network adapter 286 or transmitted to the main controller 232. Message data, and remote control signal pattern data transmitted and received between the CPU 282 and the electrical device interface unit 288.

The third network adapter 286 allows the subcontroller 274 to communicate with the master controller 232. When data is to be transmitted from the sub-controller 274 to the master controller 232, the third network adapter 286 transmits the data to the LAN port by constructing a frame according to a LAN protocol, for example, an Ethernet protocol. It can be delivered to the master controller 232 through this hub. On the other hand, the third network adapter 286 stores the data in the RAM 284 via the data bus 292 when there is a frame whose target address is set to its own address among the data frames received through the local LAN 270. This allows the CPU 282 to refer to it.

The electrical appliance interface 288 provides connection ports for the infrared receivers 334a-334n and the infrared transmitters 336a-336n. The infrared receivers 334a-334n and the infrared transmitters 336a-336n connected to the electrical equipment interface 288 of the sub-controller 274 are infrared receivers connected to the electrical equipment interface of the main controller 232. And 34a to 34n and infrared transmitters 36a to 36n. In the case where a sub-controller 274 other than the main controller 232 is used as in this embodiment, the sub-controller 274 is preferably housed in the infrared transceiver housing 70 shown in FIG.

Operation of the system shown in FIGS. 14 and 15 will be described with reference to FIGS. 16 to 18.

16 illustrates an example of a process in which the main controller 232 and the sub-controller 274 mediate the remote control signal to another room. The illustrated example shows a case where a user in the home room controls the television 342b in the living room by operating the television remote control 40a. Herein, it is assumed that the infrared transceiver in the home room is managed by the main controller 232 and the infrared transceiver in the living room is managed by the sub-controller 274. In this case, the infrared control signal emitted from the television remote control 40a is received by the infrared receiver 34a in the back room and transmitted to the main controller 232. The master controller 232 relays the control signal received from the infrared receiver 34a to all the infrared transmitters managed by the master controller 232 and transmits the control signal to the sub-controller 274 in the form of LAN data. The sub-controller 274 transmits the control signal received from the main controller 232 to all infrared transmitters managed by the sub-controller 232. Accordingly, the infrared transmitter 336b in the living room receives the mediated control signal and generates the infrared control signal to reproduce the infrared control signal. In response, the television 342b can be controlled.

FIG. 17 shows an example of a process in which an event generated in a home is reported to a web host through the Internet. An infrared receiver 334b for receiving an infrared state signal photoelectrically converts the infrared state signal and outputs an electrical state signal. Assuming that the infrared receiver 334b is under the control of the sub-controller 274, the sub-controller 274 receives the status signal and analyzes it to determine whether to directly control the device. If the status signal is of a type programmed to report to the web host 10, the subcontroller 274 converts the status signal into a status data frame in a LAN format and transmits it to the master controller 232. The master controller 232 configures a data packet according to the TCP / IP protocol for the state data and transmits it to the web host 10 through the Internet. The web host 10 transmits a control message to the controller 32 in response to the received state data frame, or alerts as previously set.

18 shows an example of a process in which a home appliance is remotely controlled through the Internet. The web host 10 may transmit a remote control signal frame in TCP / IP format to the main controller 232 of the indoor sub-system 230 through the Internet. Here, the remote control signal frame is generated in response to a status data frame received from the master controller 232 or in response to a request of the client computer 20. The main controller 232 releases and interprets the TCP / IP packet for the remote control signal frame, so that the contents of the remote control signal are programs or program data for the main controller 232 itself or are under the jurisdiction of the home devices. Determine whether to control one of the sub-controllers 274 or any of the indoor devices under the jurisdiction of the sub-controllers 274. . In a preferred embodiment, this determination is made based on the header of the LAN data packet with the TCP / IP header removed. However, in other embodiments, this determination may be made based on the actual information contained in the packet.

If the content of the remote control event is for the program or program data for itself or to control any one of the indoor devices under its jurisdiction, the master controller 232 performs the appropriate task. On the other hand, when the content of the remote control event is a program or program data for any one of the sub-controllers 274 or to control any one of the indoor devices under the jurisdiction of the sub-controllers 274, the master controller 232 transmits the remote control signal frame to the sub-controller 274 in the LAN data format.

Again, the sub-controller 274 determines whether the contents of the remote control signal frame is a program or program data for itself or one of the indoor devices. When it is determined that the contents of the remote control signal frame is for controlling the indoor device, the sub controller 274 transmits a remote control signal to the infrared transmitters 336a to 336n. Accordingly, the electric device 342c to be controlled can be controlled according to the infrared remote control signal from the infrared transmitter 336c in the room.

19 shows another embodiment of an electrical device monitoring and control system according to the present invention. The system of FIG. 19 shows a case in which a large number of homes installed with sub-systems according to the present invention in a large residential complex such as an apartment complex constitute a local LAN. In the illustrated embodiment, the premises subsystems 330a-330p built in multiple homes are connected to the hub 340 to form the local LAN 300. The hub 340 is connected to the Internet through a router 360. Meanwhile, the local host 350 is connected to the hub 340 in addition to the indoor subsystems 330a to 330p. The local host 350 is installed in, for example, the security office or the management office of the apartment, and is used to check the state of each subsidiary system 330a-330p, in particular an emergency state or an emergency state.

In such a system, the status report packet transmitted to the web host 10 from the controller or master controller in each indoor subsystem 330a to 330p varies depending on the type of message. Can be. For example, among the messages, (1) are sent directly to the web host 10 only, and (2) no action is taken unconditionally or within a certain amount of time after being sent to the local host 350. In this case, it may be transmitted to the web host 10 and (3) simultaneously transmitted to the web host 10 and the local host 350. In addition, there may be a message not transmitted to the web host 10 but transmitted only to the local host 350.

On the other hand, in another embodiment of the present invention employing such a local host 350, the web host 10 may not be included. In this embodiment, the local host 350 may perform a remote control and monitoring function, a control program and a data downloading function among functions provided by the web host 10.

The above description illustrates the present invention, and the present invention is not limited thereto and can be modified in various other ways. For example, in the above embodiments, only the devices that can be operated by the remote controller are networked on the system of the present invention. In another embodiment of the present invention, networking via auxiliary wires is also supported for the devices that are not provided with the remote controller. It can be done. As such, for devices that are not provided with a remote controller, it is desirable to have an A / D and D / A converter in the electric device interface 58 of the controller 32 or in the device.

On the other hand, in another embodiment of the present invention, the master controller may perform error detection on the received data after accepting a network packet from the Internet and before processing the packet. In addition, the sub-controller can also perform error detection on the network packet received from the master controller or another sub-controller.

In addition, the above description focuses on a system for controlling electric devices installed in a home, but the present invention may be utilized in a business building such as an office, a research institute, or a factory.

According to the present invention, it is possible to build a network encompassing electrical equipment without a network port at home or in a business building at low cost. In particular, in such a network, each device included in the system can be controlled from inside the building or from outside the building through the Internet, and the status can be easily understood from the outside because the fact is that the event is messaged to the web host. have. In addition, the status of each device in the home system may be directly managed and controlled by a separate control center, such as an apartment management office, a fire station or a security service company. In this case, it becomes possible to integrate and manage the in-house sub-system for all adjacent areas or a specific area, thereby lowering maintenance and management costs. Instead of having a comprehensive function, the system may be implemented to serve only a partial purpose, such as a home outsider intrusion alarm system, a home automation system, or remote monitoring of premises equipment.

Claims (12)

A system for controlling devices operating in response to an infrared remote control signal and monitoring the operation of devices capable of outputting an operating state as an infrared status signal, First predetermined number of infrared receivers each receiving a first infrared signal representing one of the infrared remote control signal and the infrared status signal and outputting a first electrical signal corresponding to the first infrared signal; A second predetermined number of infrared transmitters each receiving a second electrical signal and outputting a second infrared signal corresponding to the second electrical signal; And The first predetermined electrical signal is received from the first predetermined number of infrared receivers, and when the first electrical signal corresponds to the infrared remote controller signal, the second predetermined electrical signal is equal to the first electrical signal. A control unit for outputting to at least some of several infrared transmitters, such that the infrared transmitters having received the second electrical signal output the second infrared signal substantially the same as the first infrared signal; Electrical equipment monitoring and control system comprising a. The method of claim 1, wherein the control unit First storage means for storing infrared remote control signal information and a predetermined program defined for devices operating in response to the infrared remote control signal; It is determined whether the first electrical signal corresponds to the infrared remote controller signal based on the infrared remote controller signal information, and when the first electrical signal corresponds to the infrared remote controller signal, the first electrical signal equal to the first electrical signal is determined. A central processing unit for outputting an electrical signal to at least some of the second predetermined number of infrared transmitting units; And Interface means for interfacing the first predetermined number of infrared receivers and the second predetermined number of infrared transmitters to the central processing unit; Electrical equipment monitoring and control system comprising a. The method of claim 2, An alarm generating unit connected to the control unit and capable of displaying an operating state of the devices capable of outputting an operating state as an infrared state signal; When the first infrared signal corresponds to the infrared status signal, the alarm generating unit displays the operation status of the devices by any one selected from the group of alarm means composed of voice, alarm sound, light emission, and a combination thereof. Electrical equipment monitoring and control system. The method of claim 2, wherein the control unit And a first network interface means for connecting to a predetermined local LAN. The method of claim 4, wherein At least one sub-control unit connected to the local LAN; Third predetermined number of infrared receivers connected to said sub-control unit, each receiving said first infrared signal and outputting said first electrical signal corresponding to said first infrared signal; And A fourth predetermined number of infrared transmitters connected to the sub-control unit, each receiving the second electrical signal and outputting the second infrared signal corresponding to the second electrical signal; More, When any of the infrared receivers connected to the control unit and the sub-control unit receives the infrared remote control signal and outputs a first electric signal, the control unit to which the infrared receiver which receives the infrared remote control signal is connected. And the sub-control unit is configured to supply a second electrical signal identical to the first electrical signal to at least some of the infrared transmitters so that a second infrared signal corresponding to the first electrical signal is output, and simultaneously receive the infrared remote control signal. The control unit and the sub-control unit, to which the received infrared receiver is connected, form a network packet with respect to the first electrical signal and transmit the same to the other control unit or sub-control unit by transmitting to the other control unit or the sub-control unit. At least some of the infrared transmitters corresponding to the first electrical signal; Electric equipment monitoring and control system that outputs a signal. The method of claim 5, wherein the sub-control unit Second storage means for storing the infrared remote control signal information; It is determined whether the first electrical signal received from the third predetermined number of infrared receivers corresponds to the infrared remote controller signal based on the infrared remote controller signal information, and the first electrical signal corresponds to the infrared remote controller signal. And outputting the second electrical signal identical to the first electrical signal to at least some of the fourth predetermined number of infrared transmitters so that the fourth predetermined number of infrared transmitters output the second infrared signal. Transmitting a control data frame including a first electrical signal to the control unit and other sub-control units such that the infrared transmitters connected to the control unit and the sub-control units output the second infrared signal; When receiving the control data frame from the other sub-control unit Wherein the second electrical signal a fourth processor for outputting at least some of the predetermined number of the infrared transmission section; An interface unit for interfacing the third predetermined number of infrared receivers and the fourth predetermined number of infrared transmitters to the processing unit; And And second network interface means for connecting the sub-control unit to the local LAN. The method of claim 2, communications network; And A host for remotely controlling the operation of at least some of the electrical devices and monitoring the operating state of at least some of the electrical devices via the control unit via the communication network; More, The control unit further comprises first network interface means for allowing the control unit to be connected to the communication network, The control unit forms a state packet suitable for the communication network for the first electrical signal and transmits it to the host when the first infrared signal corresponds to the infrared state signal, The host transmits a remote control packet for remotely controlling any one of the electrical devices to the control unit, and the control unit releases a remote control packet to perform an operation corresponding to the information included in the remote control packet. Electrical equipment monitoring and control systems. The method of claim 7, wherein the control unit outputs the second electrical signal to at least some of the second predetermined number of infrared transmitters when the information included in the remote control packet corresponds to an infrared remote control signal. 2 allow a predetermined number of infrared transmitters to output the second infrared signal, and transmit a remote control control data frame including information included in the remote control packet to the sub-control units to the sub-control units. And an connected infrared transmitter for outputting said second infrared signal. 8. The system of claim 7, wherein the predetermined program stored in the first storage means can be downloaded and updated from the host. 10. The control unit according to any of claims 7 to 9, wherein the control unit And a second network interface means for connecting to a predetermined local LAN. The method of claim 10, At least one sub-control unit connected to the local LAN; Third predetermined number of infrared receivers connected to said sub-control unit, each receiving said first infrared signal and outputting said first electrical signal corresponding to said first infrared signal; And A fourth predetermined number of infrared transmitters connected to the sub-control unit, each receiving the second electrical signal and outputting the second infrared signal corresponding to the second electrical signal; More, When any of the infrared receivers connected to the control unit and the sub-control unit receives the infrared remote control signal and outputs a first electric signal, the control unit to which the infrared receiver which receives the infrared remote control signal is connected. And the sub-control unit is configured to supply a second electrical signal identical to the first electrical signal to at least some of the infrared transmitters so that a second infrared signal corresponding to the first electrical signal is output, and simultaneously receive the infrared remote control signal. The control unit and the sub-control unit, to which the received infrared receiver is connected, form a network packet with respect to the first electrical signal and transmit the same to the other control unit or sub-control unit by transmitting to the other control unit or the sub-control unit. At least some of the infrared transmitters corresponding to the first electrical signal; Electric equipment monitoring and control system that outputs a signal. The method of claim 11, wherein the sub-control unit Second storage means for storing the infrared remote control signal information; It is determined whether the first electrical signal received from the third predetermined number of infrared receivers corresponds to the infrared remote controller signal based on the infrared remote controller signal information, and the first electrical signal corresponds to the infrared remote controller signal. And outputting the second electrical signal identical to the first electrical signal to at least some of the fourth predetermined number of infrared transmitters so that the fourth predetermined number of infrared transmitters output the second infrared signal. Transmitting a control data frame including a first electrical signal to the control unit and other sub-control units such that the infrared transmitters connected to the control unit and the sub-control units output the second infrared signal; When receiving the control data frame from the other sub-control unit Wherein the second electrical signal a fourth processor for outputting at least some of the predetermined number of the infrared transmission section; An interface unit for interfacing the third predetermined number of infrared receivers and the fourth predetermined number of infrared transmitters to the processing unit; And And second network interface means for connecting the sub-control unit to the local LAN.