KR100613476B1 - Processor communication apparatus for home network system - Google Patents

Abstract

In order to provide a processor communication device of a home network system for implementing a home network system without a separate home server, a processor communication device of a home network system in which a plurality of clients are interconnected, wherein each client is a processor for controlling a client. A serial bus interface including a line for transmitting and receiving data and control signals between clients and a line for supplying power, for example, IEEE 1394 and a power supply line of the serial bus interface and a communication bus of the processor; A processor communication device in a home network system is provided that includes a switching chip for selecting any one of a communication bus.

Home Network, Processor Communications, IEEE 1394

Description

Processor communication device in home network system {PROCESSOR COMMUNICATION APPARATUS FOR HOME NETWORK SYSTEM}

1 is a schematic diagram of a typical home network system.

2 is a schematic structural diagram of a processor communication device of a home network system according to the present invention;

3 is a perspective view of an IEEE 1394 6-pin connector used in one embodiment of the present invention.

4 is a cross-sectional view of the cable of the IEEE 1394 6-pin connector shown in FIG.

* Description of the symbols for the main parts of the drawings *

10: home network system 20: the first client

30: second client 21, 31: first and second processor

23, 33: first and second IEEE 1394 25, 35: first and second switching chip

40: IEEE 1394 connector

The present invention relates to a home network system, and more particularly, to a processor communication device of a home network system.

A home network system is a physical network system that connects home electronic appliances to a network so that they can be used freely regardless of time and place.All home appliances are inherently inherent in function, as well as information utilization and remote control through the Internet. It is a system that automatically controls, controls and interacts with a central home server for advanced functions such as monitoring, monitoring and security.

The target of building a home network system is a non-analog-type digital device that can be connected to a refrigerator, washing machine, digital TV, digital camcorder, digital camera, computer, and air conditioner that can be operated via the Internet. All are utilized.

1 is a schematic diagram of a typical home network system.

As shown in FIG. 1, the home network system 10 includes a home server 1 and a plurality of clients such as a digital TV 3, a DVD 4, a refrigerator 5, and an air conditioner 6. , The washing machine 7, the digital camera 8 and the video telephone 9 are interconnected by a network.

A plurality of clients can transmit data to each other and must be able to communicate with each other only through the home server 1. Therefore, in order to construct the home network system 1, a home server for interconnecting a plurality of clients is absolutely necessary, and therefore, a problem arises in that the implementation of the home network system requires a considerable cost.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to provide a processor communication device of a home network system for implementing a home network system without a separate home server.

The apparatus of the present invention for achieving the object of the present invention is a processor communication device of a home network system in which a plurality of clients are interconnected, each client is a processor for controlling the client, and transmit and receive data and control signals between the clients A serial bus IEEE 1394 interface and a serial bus IEEE 1394 interface and a I2C communication bus of a processor. It comprises a switching chip for selecting any one of the I2C communication bus to selectively perform I2C communication between the processor of each client through the power line.

delete

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to Figure 2, a schematic block diagram of a processor communication device of a home network system according to the present invention will be described.

As shown in FIG. 2, the first client 20 is interconnected with the second client 30.

The first client 20 and the second client 30 may be some of the plurality of clients shown in FIG. 1, or may be other home appliances.

The first client 20 includes a first processor 21, a first IEEE 1394 23, and a first switching chip 25. The second client 30 includes a second processor 31, a second processor 31. 2 includes an IEEE 1394 (33) and a second switching chip (35).

The IEEE 1394 (23, 33) is a new serial bus interface standard jointly proposed by Apple and Texas Instruments, and has been developed under the code name FireWire, and has been studied since 1986 and was established in 1995 by the Institute of Electrical and Electronics Engineers (IEEE). It was formally agreed in March and standardized it.

The biggest advantage of this IEEE 1394 interface is its high transfer rate. Depending on the mode, three speeds can be achieved: 100Mbps, 200Mbps, and 400Mbps. At this speed, digital audio and moving picture information can be easily transmitted, so a multimedia peripheral such as a scanner, a digital camera, or a digital video camera can be connected and used. In addition, IEEE 1394 has better two-way communication than USB, which means that all peripherals can be equipped with an IC that can control the IEEE 1394 interface, so it can perform well in applications such as video conferencing through a PC.

The IEEE 1394 is roughly divided into two types according to port types. One is Sony's iLink S400 (4-pin), the other is the international standard IEEE 1394 (6-pin). The difference is that the iLink S400 is unpowered and small, while IEEE 1394 The six pins provide two more pins for power and the larger port size.

In the case of the embodiment according to the present invention, IEEE 1394 (6-pin) capable of supplying power is used.

In order to communicate with each other, the first processor 21 and the second processor 31 use an I2C (Inter Integrate Circuit) communication scheme.

The I2C is a two stranded bidirectional serial bus that provides a communication link between integrated circuits. Philips introduced the I2C bus 20 years ago for mass production products such as TVs, VCRs and audio equipment. I2C is today the de facto standard solution for embedded applications. There are three data transfer modes on the I2C bus, including standard, high speed and ultra high speed, with 100 Kbps for standard mode, 400 Kbps for high speed, and up to 3.4 Mbps in ultra high speed mode. All three have backward compatibility. The I2C bus supports devices with 7-bit and 10-bit address spaces and devices that operate at different voltages.

An I 2 C bus of the first processor 21 and a power line of the first IEEE 1394 23 are connected to an input side of the first switching chip 25, and likewise, the input side of the second switching chip 35 is connected to the input side of the second switching chip 35. The I2C bus of the second processor 31 and the power line of the second IEEE 1394 33 are connected.

In addition, the outputs of the first switching chip 25 and the second switching chip 35 are interconnected, and the data / control signal line of the first IEEE 1394 23 and the data of the second IEEE 1394 33. The control signal lines are interconnected.

Referring to the operation of the processor communication device of the home network system shown in FIG. 2, power lines of the IEEE 1394 (23, 33) are interconnected through the switching chips 25 and 35, and the processor 21, Each I2C bus of 31 is connected to an input side of the switching chips 25 and 35, and under the control of the processors 21 and 31, the switching chips 25 and 35 are connected to a power line or I2C of the processor. The bus will be selected. As a result, power supply or communication between processors can be performed through the IEEE 1394, and thus a network system can be implemented between clients without a separate home server.

3 is a perspective view of the IEEE 1394 6-pin connector used in one embodiment of the present invention, Figure 4 is a cross-sectional view of the cable of the IEEE 1394 6-pin connector shown in FIG.

As shown in FIGS. 3 and 4, the IEEE 1394 is a cable in which six thin wires fit together, and four of them are data / control signal lines 42 for transmitting and receiving data and control signals. The remaining two strands are the power lines 44, which supply + and-power. Unlike other interfaces, the power supply is included to prevent problems caused by the power being cut off from the network when IEEE 1394 is configured as a network.

The present invention connects the power line 44 with a switching chip connected to the I2C bus of the processor, thereby realizing the communication between the processors by using the original function as an I2C bus line for communication between the processors.

What has been described above is merely an exemplary embodiment of a processor communication apparatus of a home network system according to the present invention, and the present invention is not limited to the above-described embodiment, and as claimed in the following claims, the present invention Without departing from the gist of the present invention, one of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

 As described above, according to the processor communication device of the home network system of the present invention, it is possible to implement a home network system without a separate home server, thereby reducing the cost of implementing the home network system.

Claims (2)

A processor communication apparatus of a home network system in which a plurality of clients are interconnected, Each client above A processor for controlling the client; A serial bus IEEE 1394 interface comprising data / control signal lines for transmitting and receiving data and control signals between clients and power lines for supplying power; And a switching chip connected to a power line of the serial bus IEEE 1394 interface and an I2C communication bus of the processor, and to select one of the power line and the I2C communication bus according to the control of the processor. Processor communication device of a home network system, characterized in that to perform I2C communication between the processors of each client through a power line. delete

Images