KR20040022791A - Remote pc control dvr system - Google Patents

Abstract

PURPOSE: A DVR(Digital Video Recorder) system controlled by a remote PC is provided to connect a user PC to a remote DVR PC under a floating IP(Internet Protocol) network environment and to enable the user computer on the network turn on/off the remote DVR PC. CONSTITUTION: The system comprises the WDVR(100) installed to the remote PC(R) and a cable connection module(200) connecting the WDVR to the network. The cable connection module comprises a microcomputer(215) connected to the WDVR, and a TCP/IP(Transmission Control Protocol/Internet Protocol) module(212) connecting to a LAN(Local Area Network) cable coupler(211) and the microcomputer, a RAM(213) and an EEPROM(Electronically Erasable Programmable ROM)(214) connecting to the microcomputer, and a switch(240) connecting a power-on pin(242) of the remote PC to the microcomputer.

Description

Remote PC Control DVR System {REMOTE PC CONTROL DVR SYSTEM}

The present invention relates to a remote PC control DVR system.

As personal computer (DVR) -based digital video recorders (DVRs) are connected to the network, several new applications are being proposed. This application field starts from a technology that can freely image the remote space and accumulate image files into a digital database.

The PC-based DVR is configured by mounting a PC-type DVR card and an operating program for connecting a multi-channel generally 4-channel camera to a port. The DVR PC selects a camera channel under the control of an application program, monitors a plurality of channels or a camera image of a selected channel in real time, stores a plurality of channel image images in a database as a digital file at a predetermined time, and stores the stored image file. It has a function to make a database of camera video images such as search and playback.

As the DVR PC is connected to a web-based network centered on the Internet, it meets new demands of DVR operation. Specifically, it is intended to unmanage the management of DVR PCs by controlling a number of remote DVR PCs on the network from the user computer and further opening and closing the power of the remote DVR PC from the user computer.

This demand was not free in the Internet environment of allocating dynamic IP. However, according to Patent Application No. 10-2001-68355 (Space Communication Co., Ltd.), a floating IP connection system of a remote client computer that enables remote access between specified computers through an Internet network in a floating IP environment has been proposed. The cited floating IP access system further installs an IP relay computer in addition to a remote PC (DVR PC) and a user PC on the network. The remote PC provides the IP and its ID provided from the web browser to the IP relay server on the network at the time of booting, and the relay server stores and manages this IP and ID as a database. In the approaching step, the ID is provided to the IP relay server, and the remote PC IP corresponding to the id is provided from the IP relay server to access the remote PC.

Conventionally, the power switching technology of a remote PC required for unmanning the remote PC has been used a signal detection module for detecting the request of the user PC in the power off state. Specifically, the signal detection module (emberded) used in the PCI type LAN card is driven by 3.3v current applied to the PCI slot of the PC which is turned off, and has a built-in MCU and a TCP / IP module. Even if the PC's power cord is connected to the drive current, it remains active by the base voltage applied to the PCI slot even if the PC's power cord is connected to the drive current. It maintains the TCP / IP communication status and keeps the active state on the network by sending the IP of the PC to the router's status query.

4 (A) and (B) refer to data coupling of a conventional Unshielded Twistied Pair Cable (UTP) LAN port, and FIG. 4 (C) refers to an Ethernet frame format. The mainstream of the network of the conventional Internet is 10Mbps Ethernet. The frame structure of Ethernet is cited in Fig. 4 (C). Although the communication speed of Ethernet is 10Mbps, since the information transmission target is plural, the actual transmission speed is about 1 ~ 2Mbps. The worst case is 500 Kbps.

The UTP cable connects one end to a network side hub and the other end to a LAN card of a user's computer. The advantage of UTP cable is that it avoids CrossTalk, which is the communication interference between adjacent cables by magnetic, so that many cables can be bundled together. UTP cable connected to LAN card is composed of 8 pairs of orange, green, blue and brown pairs. There are direct connection and crossover connection according to the wiring method of UTP cable. Direct connection is a connection between a hub and a PC using a UTP cable, which interconnects network equipment and a computer as shown in FIG. 4 (A). The cross cable is a hub and a hub or a PC and a PC as shown in FIG. 4 (B).

An object of the present invention is to provide a remote PC control DV system that can be connected to a remote DVR PC from a user computer in a dynamic IP network environment.

The present invention is to provide a remote PC control DV system that can be controlled in the power-on state from the user PC on the network, even when the power of the remote PC connected to the network is off. .

An object of the present invention is to provide a remote PC control DV system that is easy to access a user PC and a remote PC.

1 is a network connection diagram of a user PC and a DVR PC

2 is an overall configuration diagram of the present invention

3 is a configuration diagram of a cable connection module

Figure 4 (A) (B) is a data path of the UTP cable LAN port, (C) is a frame structure of Ethernet

<Description of Drawing Major Symbols>

S: IP relay server R: Remote PC C: User PC 100: WDVR 200: Cable connection module 211: Cable connector 212: TCP / IP module 213: RAM, 214: EEPROM 215: Microcom 240: Switching unit, 21, 22 , 23, 24, 25: camera 25: home appliance control module

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a network (N) connection diagram of a user PC (C) and a remote PC (R). In FIG. 1, an IP relay server S is installed to relay a floating IP of a remote PC R to a user PC as a URL in a network; Remote PC (R) which is provided with dynamic IP from web browser when connected to network (N), provides the provided dynamic IP and its ID to IP relay server (S), and is installed more than one for IP relay server. Wow; Connected to the network (N) to access the remote PC, connected to the IP relay server (S) prior to the remote PC (R), and connected to the remote PC (R) as an IP provided by the IP relay server, remote control As a user PC (C) to control the remote PC (R) as.

In FIG. 1, the IP relay server S has a floating IP management module S1 and a database S2. The management module (S1) receives the packet including the Internet connection IP and the ID of the remote PC (R) from the remote PC (R), and stores the id and IP included in the reception packet in the database (S2), When the remote PC (R) is separated from the network (N), it receives the separation information and deletes the corresponding IP information from the database, receives the IP request of the user PC (C), and the IP of the PC designated as id in the request packet. Is retrieved, and the retrieved IP is included in the packet and transmitted to the user PC (C).

In FIG. 1, the IP transmission module R1 mounted on the remote DVR PC (R) includes an IP provided by a web browser and an ID of the remote PC (R) in a packet when connected to a network. Transmits the separated information to the IP relay server (S) when separated from the network (N).

In FIG. 1, the dynamic IP connection module C1 included in the user PC C accesses the IP relay server S prior to the connection of the remote PC R, and assigns the IP of the remote PC R designated as id. It is requested to connect to the remote PC as the returned IP.

The DVR is mounted on the remote PC (R) and performs a DVR function, and the DVR is operated to allow the user PC (C) access through the IP relay server (S) in the dynamic IP network environment is defined as WDVR in the present invention.

2 is an overall block diagram of the present invention. In FIG. 2, an application program for controlling the WDVR 100 and the camera and the home appliance control module is mounted on the remote PC R. In the embodiment, the WDVR card is inserted into the PCI slot of the remote PC (R). The four channel cameras 21, 22, 23, 24 and the home appliance control module 25 are connected to the WDVR 100 of FIG. 2, and the PC display and the 1 to 4 channel camera images can be monitored on the remote PC R. Monitor M that can be connected. In the WDVR 100 of FIG. 2, the cable connection module 200 is included and connected to the user PC C on the network (Internet (LAN, PSTN, ISDN), Modem) (N) through the module 200. .

The present invention attempts to access the remote PC (R) while inputting the ID of the remote PC (R) from the user PC (C). The id is transmitted to the IP relay server S through the network N, and the IP relay server S returns the corresponding IP. The user PC C obtained the IP attempts to access the remote PC R on the network N as an IP registered in the active state of the router. When the web browser connects the user PC (C) and the remote PC (R) and the TCP / IP communication is enabled, the user PC (C) remotely controls the WDVR (100) to control the four-channel camera (21, 22, 23). , 24), receive the video from the selected camera in real time, search the time zone video image file database on the remote PC (R), select the required file, download the selected file, It is to transmit the necessary execution command for 25) to control the home appliance remotely.

3 is a configuration diagram of the cable connection module 200 mounted on the WDVR 100 of the remote PC (R). Cable connection module 200 and the microcomputer 215 connected to the WDVR (100); A TCP / IP module 212 for connecting the LAN cable coupler 211 and the microcomputer 215 with TCP / IP control; A RAM 213 and an EEP ROM 214 connected to the microcomputer 215; It comprises a switching unit 240 for connecting the power-on pin 242 of the remote PC to the microcomputer 215 as a jump cable 241,

The microcomputer 215 stores in the RAM 213 a user ID, a password, and a power switch request data given from a connection initial cable; If the user ID and password stored in the EEP ROM 214 are compared with the data stored in the RAM 213, and the data matches, the power opening / closing request data of the user PC stored in the RAM 213 is read again, and the contents of the request are read. According to the control unit 240 to control the power-on pin 242 to perform the power opening and closing process; Send TCP / IP communication ready signal to WDVR 100 to control multi-channel camera, image image file database management and home appliance control module from user PC according to application program mounted on remote PC (R). To do this.

In addition, a signal detection module (emberded) is included in the microcomputer 215, and the cable connection module 200 includes a driving current that does not interfere with power opening and closing of the PC, so that it is active even in the power off state of the remote PC and is in a network state of the router. In response to the inquiry, the IP of the remote PC (R) stored in the EEP ROM 214 is returned to maintain the TCP / IP communication enabled state, and the network connection IP and the user are connected to the EEP ROM 214 under the control of the WDVR 100. The microcomputer 215 has been programmed to store data including the ID and password of the PC.

The connection of the coupler 211 included in the cable connection module 200 will be described as an example employing a UTP cable. UTP cable is a cross cable of Fig. 4 (B) and communicates with LAN ports 1,2,3,6. When the signal comes to the RX Line of the first cable, the microcomputer 215 sends the handshaking signal to the TX Line, and then stores the incoming data format as the promised user id and password and stores it in the RAM 213 as described above. The id and password stored in the ROM 214 are compared. As a result of the comparison, if the id and the password match, the power opening / closing request of the PC is decrypted among the data stored in the RAM 213 to perform power processing, or the connection is refused.

The power opening / closing control of the microcomputer 215 checks the voltage state high or low of the power-on pin 242 of the PC R through the switching unit 240 and executes the power opening / closing command to invert the voltage state. Power switch control is shown in Table 1.

Table 1: Power Control Types

1) When the remote PC (R) requests power on in the power on state, it transmits a message to the user PC (C) that the power on state.

2) If the remote PC R is in the power-off state and the power-on is requested, the switching unit is controlled to power on the remote PC R, and a power-on control result message is transmitted to the user PC C.

3) If the remote PC (R) requests power on in the power off state, the switching unit controls the remote PC (R) to power on, and transmits a power-on control result message to the user PC (C).

4) If the remote PC (R) is in the power-off state and the power-off is requested, a message is sent to the user PC (C) indicating that the power-off state is maintained.

If the remote PC (R) is in the power-on state after the power control, activate the data communication between the microcomputer 215 and the WDVR (100) and according to the application program mounted on the user PC and the remote PC as described above the WDVR (100) There is a variety of control.

The response to the router status inquiry of the microcomputer 215 is connected to the network of the remote PC (R) whenever 5v power is applied to the cable connection module (200) regardless of the power on / off state of the remote PC (R). The IP is sent back to maintain an active state on the network (N). To this end, the WDVR 100 mounted on the remote PC R delivers the IP provided by the web browser to the microcomputer 215 when the remote PC R is first connected to the network, and stores the IP in the EEP ROM 214. The IP stored in the EEP ROM 214 is updated when a new IP is assigned to the PC R. Meanwhile, when the power of the remote PC R is turned on by the cable connection module 200 or by rebooting the remote PC R, the IP transmitted to the IP relay server is the same IP as the data contained in the EEP ROM.

The microcomputer 215 registers the ID and password of the user PC C when the WDVR 100 is set up in the remote PC R. This data is stored and retained by the WDVR, and at the same time, a copy is stored in the EEP ROM 214 of the cable connection module 200, so that the user can quickly and easily connect the remote PC (R) from the user (C). The data of the remote PC can be protected.

Examples of formats of id, password, and power switch request data held by the WDVR 100 and the cable connection module 200 are shown in Table 2.

Table 2: Format of id, Password, and Power Switch Request Data

id (4-8 bytes) Password (4-8 bytes) Power switch request code (2-3 bytes) Remarks wj-wdvr "wkey" "on" or "off" Digit "wj-wdvr" "wkey" "on" or "off" String processing

An example of the edit window for inputting the embodiment data of Table 2 to the user PC C is shown in Table 3.

Table 3:

id password Power opening and closing request (optional) w j - w d v r w k e y On Off

The edited string for the data of Table 3 to be transmitted from the user PC R to the remote PC R and stored in the EEP ROM 214 is shown in Table 4.

Table 4: String example of id, password and power switch information for transmission

"wj-wdvr wkey on / n";

Or "wj-wdvr wkey off / n";

As described above, the present invention can be connected to a remote DVR PC from a user computer in a dynamic IP network environment, and even when the power of the remote PC connected to the network is turned off, the power is controlled from the user PC on the network or the power is turned on. It is to provide remote PC control system which can control from power off state and easy connection process between user PC and remote PC.

Claims (4)

WDVR (100) mounted on the remote PC (R); A cable connection module 200 for connecting the WDVR 100 to the network; The cable connection module 200 and the microcomputer 215 connected to the WDVR (100); A TCP / IP module 212 for connecting the LAN cable coupler 211 and the microcomputer 215; A RAM 213 and an EEP ROM 214 connected to the microcomputer 215; Remote PC control DVR system, characterized in that it comprises a switching unit 240 for connecting the power-on pin (242) of the remote PC with the microcomputer (215). The method of claim 1, The microcomputer 215 stores in the RAM 213 a user ID, a password, and a power switch request data given from an initial connection cable; Comparing the data stored in the RAM 213 with the user id and password set in the EEP ROM 214; If the comparison result data is matched, the power on / off request data of the user PC stored in the RAM 213 is read to control the power on / off by controlling the power on / off pin 242 through the switching unit 240 according to the content of the request; Transmitting a network connection completion signal to the WDVR 100 so that the user PC C can control the WDVR 100 on the remote PC R; It is also active in the power-off state of the remote PC, and forwards the IP of the remote PC R to the network status inquiry of the router; Remote PC control DVR system, characterized in that programmed to store data including network connection IP, user PC id and password in EEPROM under the control of WDVR (100). The method according to claim 1 or 2, A plurality of channels of cameras 21, 22, 23 and 24 in the WDVR 100; To connect the home appliance control module 25; Depending on the application program loaded on the remote PC (R) A multi-channel camera connected to the WDVR 100 of the remote PC R from the user PC C; Image file database; And home appliance control module; Remote PC control DVR system characterized in that the control. The method according to any one of claims 1, 2 and 3, WDVR 100 is, An IP relay server (S) installed to relay the dynamic IP of the remote PC to the user PC as a URL in the network; When connected to the network (N) is provided with a dynamic IP from the web browser, providing the assigned dynamic IP and its ID to the IP relay server (S), one or more remote PC (R) installed on the IP relay server (R) )Wow; It is connected to the network (N) to access the remote PC, connected to the IP relay server (S) prior to the remote PC (R) connection, and connected to the remote PC (R) as an IP provided by the IP relay server, and remotely controlled. As the user PC (C) to control the remote PC (R), A remote PC control DV system, characterized in that the remote PC (R) of the IP relay system is configured to mount a DVR system to control the DVR on the network from the user PC (C).