JP4619235B2 - Information supply system using communication line - Google Patents

Description

  The present invention is a communication that enables an installation terminal installed indoors, such as a monitoring terminal, using a communication line to be connected from the outside using an information terminal such as a telephone or a personal computer owned by the user. The present invention relates to an information supply system using a line.

  For example, if you are away from home, you have to worry about the thief's invasion and the cleanup of the fire. With the deterioration of the security situation like today, such concerns are increasing. Therefore, in recent years, contracts with security companies have increased the number of private homes, companies, etc. that perform security agency work to prevent thieves from entering and fires.

  As a current security system, when a thief enters a house or the like where a predetermined sensor or the like is deployed, there is a system in which a security company's security staff rushes to the house by reporting to the security company due to a sensor reaction.

  However, in such a system that uses manpower, personnel costs for guards account for a very high proportion, so the subscription fee becomes enormous for the general public, and it is not possible to expect a rapid increase beyond this. Is the current situation.

  For this reason, using communication lines (including wired and wireless), it is possible to monitor the state of a remote area, which is a specific area, even if it is frequently and intermittently, as well as when it is necessary or anxious. There is a demand to do.

However, in the case of employing such a monitoring system as installed terminal installed indoors or the like, the installed terminal side address management always connected environment having no fixed IP address is an important factor.

Accordingly, the present invention has been made in view of the problems described above, despite the use of the continuous connection line, centrally IP address is managed, the user, and the installed terminal very quickly An object of the present invention is to provide an information supply system using a communication line that can be connected.

In order to achieve the above object, an information supply system using a communication line according to the present invention includes:
Installed in a communication network consisting of the Internet or a telephone network, and installed in order to directly connect the information terminal to the accessing information terminal with a link based on a peer-to-peer communication method using the Internet. An information supply system using a communication line in a management computer that gives a terminal-side IP address,
The management computer side includes a user database in which an installation terminal ID on the installation terminal side and an IP address on the installation terminal side that is updated and registered as the latest data are associated with each other,
The management computer side
A means for receiving the installation terminal ID and the IP address of the installation terminal transmitted from the installation terminal side, and updating the corresponding installation terminal IP address;
The installation terminal side
The difference between the old IP address and the newly assigned IP address due to the reassignment of the IP address of the installed terminal by the same provider is judged. If there is a difference, the global IP address of the management computer stored in the internal IP address is determined. It is characterized by having a self-connection function that can request connection and update registration of a new IP address based on its own installed terminal ID.
According to this feature, the management computer can manage a large number of installation terminals in a centralized manner for a large number of users so that the user's access can be handled instantaneously, and the IP address of the installation terminal Is provided to the information terminal of the accessing user, and the information terminal of the user can be linked to the corresponding installation terminal via the Internet. Therefore, the connection for exchanging data between the user information terminal and the installation terminal does not use the line on the management computer side, does not occupy the line on the management computer side, and has a large capacity. No need for a line.
In particular, the installation terminal determines the difference between the old IP address and the newly given IP address due to the reassignment of the IP address of the installation terminal . Since the connection processing can be performed for the global IP address and a new IP address can be requested to be updated and registered based on the own installation terminal ID, the management computer can manage the IP address of the installation terminal.

In order to achieve the above object, the information supply system using the communication line of the present invention, when the installation terminal is newly connected to or reconnected to the Internet, the installation terminal is stored in a management computer stored therein. A function for self-connection processing is provided for the global IP address, and it has a self-connection function that can request registration or update registration of the IP address assigned at that time based on its own installed terminal ID ing.

  Embodiments of the present invention will be described below with reference to the drawings.

    Example 1

  1 and 2 are block diagrams showing the configuration of a specific area monitoring system according to the present embodiment. FIG. 3 is an external perspective view showing a monitoring terminal used in the specific area monitoring system according to the present embodiment. 4 is a block diagram showing the configuration of the monitoring terminal used in the present embodiment, FIG. 5 is a block diagram showing the configuration of the management computer used in the present embodiment, and FIG. FIG. 7 is an external view showing a mobile phone carried by a user capable of outputting a monitoring image and sound from the management computer of the present embodiment, and FIG. 7 is a monitoring process in the specific area monitoring system of the embodiment of the present invention. FIG. 8 is a process flow diagram on the monitoring terminal side in the embodiment of the present invention, and FIG. 9 is a process flow diagram on the management computer side in the embodiment of the present invention. Figure 10 shows Is a block diagram illustrating a DSL configuration is a communication means used in the embodiment of the present invention.

  First, as shown in FIG. 1, the specific area monitoring system of the present embodiment is a place where a large number of registered users (ABC ... Z ...) want to individually monitor, for example, Monitoring terminal 4 (4a, 4b, 4c,... 4z,...) Installed in a monitored area (abc,..., Z,. A management computer 3 owned by a service provider capable of data communication with the information terminal owned by the person through the communication line network 5, and an Internet service provider (ISP) basically always connected to each monitoring terminal side. It is mainly composed of a relay server 6 and information terminals such as a personal computer 14, a notebook personal computer 15, and a mobile phone 11 operated by a user of the monitoring service.

  In addition, the monitoring terminal 4 (4a.4b.4c... 4z...) Used in the present embodiment is mainly owned by the service provider via the communication network 5 as shown in FIG. In principle, the management computer 3 is always connected. According to this example, the monitoring terminals 4a to 4c are connected to the management computer 3 via the network by ADSL (DSL), which is a so-called asymmetric digital subscriber line system, and the monitoring terminals 4a to 4c are connected to each other. The set-top box 2 is a communication device that performs transmission and reception of data, and the monitoring unit 1 that is connected to the set-top box 2 and collects monitoring information such as images and sounds in a specific area. FIG. 2 shows an example of a communication configuration using radio such as the wireless Internet.

  As shown in FIG. 3, the monitoring unit 1 used in this embodiment shown in FIG. 1 has a transparent dome-shaped cover 68 formed on the lower surface of a box-like housing 50 that can be placed on the ceiling or the like. The cover 68 includes a monitoring CCD camera 55 as monitoring means, and a direction changing device 58 capable of changing the monitoring direction of the monitoring CCD camera 55 left and right and up and down. A communication cable 51 connected to the set top box 2 is led out from the side surface of the housing 50, and a sound collecting microphone 53 capable of collecting sound in the monitoring area is provided on the other side surface. Yes.

  Further, as shown in FIG. 4, the internal configuration of the housing 50 of the monitoring unit 1 is used as a work memory in control performed by a communication unit 71 that performs data communication and an MPU 65 described later. An SRAM 70 for temporarily storing image data or audio data compressed by a digital signal processor (DSP) 56, and an A / D converter connected to the sound collection microphone 53 for converting input sound into digital data A monitoring CCD camera 55 having a built-in charge coupled device (CCD) 54 capable of outputting an image formed by a lens inside as a digital data string, the PCM codec 52 and the charge coupling The audio data and image data output from the element (CCD) 54 are subjected to a predetermined compression algorithm (MPEG, JPEG, etc.) A digital signal processor (DSP) 56 that performs compression processing, a direction changing device 58 that moves in the photographing direction of the monitoring CCD camera 55, a driver 59 that lights a pilot lamp (LED) 69, and each of these parts 4 are connected to each other as shown in FIG. 4, and MPU 65 for performing processing such as control of each unit.

  The MPU 65 recognizes the IP address given to the ADSL transceiver and spontaneously requests connection with its own ID to the fixed IP address of the management computer recorded in the internal ROM 66 (IP Address change request function), identifies the fixed IP address of the management computer, decrypts the predetermined encrypted password sent in advance from the management computer, waits, and the authorized user accesses with that password A program (connection permission function) that permits an Internet connection only when the MPU 65 is activated, monitoring means such as the monitoring CCD camera 55, the direction changing device 58, the sound collecting microphone 53, and the peripheral devices of the monitoring means. Internal ROM that stores the control program that describes the control contents It has a 6. If the password transmitted from the user is encrypted as the connection permission function, the system can be more secure if it has decryption means for decrypting it. In FIG. 4, white arrows indicate control signals, and black arrows mainly indicate data signals.

  The MPU 65 also has a program that enables communication between the mobile phone 11 and the personal computers 14 and 15 and the PDA that have been connected to the Internet in a peer-to-peer state after obtaining connection permission as will be described later. ing.

  In addition, the monitoring unit 1 of the present embodiment is equipped with a battery 67 as a power means, and is operable with the battery, so that the monitoring unit 1 can be easily installed in a place where power cannot be obtained. However, the present invention is not limited to this, and these electric powers may be used by converting an alternating current obtained from an outlet or the like into a predetermined direct current.

  In the present embodiment, as described above, the DSP 56 is used to compress and transmit image data and audio data by a method such as MPEG, and this data compression reduces the data capacity to be transmitted. The transmission load can be reduced and the communication capacity required in the management computer 3 can be reduced and the line cost can be reduced. However, the present invention is not limited to this. It is also possible to use a streaming distribution method by an encoder of a real player or a media player.

  In this embodiment, the monitoring CCD camera 55 and the sound collecting microphone 53 are provided as monitoring means. However, the present invention is not limited to this, and charge monitoring devices are used as these monitoring means. A plurality of monitoring CCD cameras 55 having a built-in (CCD) 54 are provided, each of which is connected to a digital signal processor (DSP) 56, addresses are assigned to the plurality of monitoring CCD cameras 55, and the MPU 65 collectively manages them. In addition, various selections can be browsed on the user's terminal on the Internet. Further, for example, an infrared sensor capable of detecting infrared rays emitted from animals, a temperature monitoring sensor capable of measuring the ambient temperature of the installation location (including a fire monitoring sensor depending on temperature), a smoke monitoring sensor, etc. may be used. These monitoring means to be used may be appropriately selected according to the monitoring purpose.

  As the installation location of the monitoring unit 1, it is only necessary to select a suitable location for checking the image of the area and temperature, sound, or smoke that the user particularly wants to monitor. It is preferable that a more precise monitoring can be performed by using a ceiling with few obstacles, etc., and allowing the monitoring direction to be appropriately moved.

    Next, a set top box is connected to the monitoring unit 1 and is connected to the communication line network 5 (ADSL line) and is a communication means for transmitting / receiving data to / from the management computer 3. As shown in FIG. 10, the configuration of 2 is provided with a monitoring terminal as the monitoring unit 1, an ADSL transceiver for connecting a personal computer, and a terminal for connecting an analog telephone, which are telephone lines connected to an exchange station. Connected through a filter. Here, in the switching center, it is distributed to a telephone exchange or an ADSL transceiver (modem or router) through a filter based on the frequency band.

  In addition, the monitoring units 1 of this embodiment are arranged in various places scattered throughout the country, for example, and have the communication units 71 as described above, and IP addresses are assigned to each monitoring terminal by the ISP. A network may be established with the management computer 3 at all times, or the management computer 3 and the network may be established only when the IP address on the monitoring terminal side is changed without always establishing a network. May be. This IP address plays a very important role in specifying the monitoring area and its access.

  Next, each of the monitoring terminals 4 (4a, 4b, 4c,... 4z,...) Composed of the monitoring unit 1 and the set-top box 2 can be connected to the Internet network via the relay server 6. As shown in FIG. 5, the configuration of the management computer 3 is such that an authentication process by connection from a user to a data bus 30 that transmits and receives data at a relatively high speed inside the computer. Or a search process for searching for the IP address (here, global IP) of the monitoring terminal registered corresponding to the user ID, an automatic update process of the user database, and the information terminal of the user. Link processing for indicating the address of the corresponding monitoring terminal 4 to the mobile phone 11 so that these information terminals can directly access the monitoring terminal, and a password (here, Central processing unit (CPU) 31 with excellent computing ability capable of performing batch processing of passwords), RAM 32 used for work memory of CPU 31, display device 34 such as a display, keyboard and mouse A real-time clock (RTC) 37 capable of outputting current time information used for registration of connection service execution history and calendar information such as day of the week of any year, month, and the like, the monitoring terminal A communication terminal board 38 for a monitoring terminal that can be connected to a line that can perform data communication with the ADSL transceiver of the set top box 2 that constitutes the mobile phone 11 and a mobile phone 11 that is a user information terminal A communication line substrate 33 for a user that can be connected with a communication line capable of performing data communication with a relatively high speed, and a magnetic disk or magneto-optical disk. The monitoring terminal ID assigned to the monitoring terminal side installed at the location that the user wants to monitor and the latest data are updated and registered in association with an identification code (ID) that can identify the user. User database (DB) based on the IP address of the user (Note that the data that is the basis of the identification code ID that can identify the user is the user's telephone number, ID number, address data, password, and further encryption And a relatively high processing capability connected to a storage device 35 in which a data processing program in which various data processing contents are described is stored. It is regarded as a computer.

  The communication line board 33 used in the present embodiment is based on the digital data registered in the storage device 35 when accessed from the mobile phone 11 or the like which is an information terminal possessed by the user. Guidance that prompts the user to input a user ID and a personal identification number is transmitted. If the ID (global IP address, user ID) possessed by the mobile phone or PC is sent to the access signal, the management computer 3 can receive this data when accessing the management computer 3. Thus, the user's authority and the monitoring terminal corresponding to the user can be searched without burdening the user. In addition, a predetermined guidance can be transmitted as audio to a user who is a caller. In this case, an A / D converter (not shown) that converts digital audio data into analog audio and transmits it. ) Should be provided.

  The communication line board 33 can be provided with a call ID detecting unit (not shown) as a telephone information receiving means for retrieving the telephone number data of the accessor. The user ID can also be confirmed by outputting to the central processing unit (CPU) 31.

  An information terminal used by a user in the present invention is one that can access the management computer 3 to receive compressed image data and sound data, decompress the compressed data, and reproduce and output it. In this embodiment, as shown in FIGS. 1 and 2, the user accesses the management computer 3 from any of the personal computer 14, the notebook personal computer 15, and the mobile phone 11 to display an image from the monitoring terminal 1. Data and sound data can be obtained and monitored, and the mobile phone 11 used in this embodiment has a relatively large display screen 16 on which a monitoring image can be displayed as shown in FIG. And having a microcomputer capable of performing decompression processing of the compressed data. By connecting an earphone to the earphone terminal port 17, the screen can be viewed. It has to be able to hear sound.

  Hereinafter, the flow of the monitoring process in the monitoring system of the present embodiment will be described based on the flowchart of FIG. 7. First, the user A is in a home where the monitoring terminal 1 is installed in a remote place or a place where the user is away. When the user becomes uneasy, for example, he accesses the management computer 3 owned by the monitoring service provider from the mobile phone 11 he / she owns and accesses his / her user ID and password according to the guidance. 11 to input. If an ID (global IP address, user ID) possessed by a mobile phone or PC is sent on an access signal and this data is delivered to the management computer 3 when accessing the management computer 3, special guidance is provided. Authentication processing according to is not required on the user side.

  On the management computer 3 side, the user ID and personal identification number transmitted from the mobile phone 11 of the user A are compared with the registration data of the user DB stored in the storage device 35, and the comparison is made. When it is determined that the user is an authorized user, the management computer performs a search with a search engine using the user DB, and is registered in the user DB in association with the user ID. IP addresses (addresses allocated by the always-connected ISP) are extracted. A search is performed to determine whether there are multiple monitoring terminal or monitoring unit locations (IP addresses) corresponding to the user. If there are multiple monitoring terminals or monitoring unit locations, a menu of monitoring terminal or monitoring unit locations that are accessible to the user is displayed. , It prompts the user to select the base information they want to get.

  For example, when there are a plurality of monitoring terminals 4a (IP addresses given for each area) corresponding to the user A and the user A selects one of them, the monitoring unit 1 in the corresponding monitoring terminal 4a is configured here. On the other hand, an encrypted password is sent to the IP address of the monitoring terminal using the Internet line that is normally always connected (by sending a control signal, which is other special command data, and accessing only within a predetermined time period) Information can be given to the monitoring terminal so as to allow processing), and an IP address is given to the information terminal of the user so that the monitoring terminal 4a can be connected to the Internet. Processing is performed so that an encrypted password for obtaining connection permission on the monitoring terminal side is simultaneously transmitted to the IP address of the link destination. This system is preferably a one-time password. Information such as images transmitted from the monitoring terminal side is preferably encrypted to prevent unauthorized acquisition, and decrypted on the user information terminal side.

Monitoring terminal that has received the password, the encrypted password to await the decrypted by the user's access, you now receive a password access from the user to decrypt the user When the password from the management computer and the password from the management computer match, the Internet connection is accepted, and the monitoring unit and the information terminal are connected in a so-called peer-to-peer state, and are photographed by the monitoring CCD camera 55 in the activated state. The collected image data and the sound data collected by the sound collecting microphone 53 and digitized by the PCM codec 52 can be collected by the user information terminal. Of course, various operations can be performed by sending command signals to the monitoring unit.

  In this example, it is assumed that there is no fixed IP address on the monitoring unit side. That is, the relay server 6 guarantees a specific IP address on the monitoring unit side as a general always-on ISP service, and enables communication with the address of the management computer, that is, the IP address toward the Internet network. Is a dynamic IP address and is not always the same, and the connected monitoring terminal 4 is specified by the monitoring terminal communication circuit board 38 and the CPU 31 on the management computer 3 side. Note that a more stable connection environment can be created by using the mutual communication environment using VPN.

  In other words, the corresponding accessor (user A) obtains image information and the like from the predetermined monitoring terminal 4a that is originally accessible by the management computer 3 based on the IP address assigned to the monitoring terminal. The data can be obtained directly. For this reason, once the access permission (user A) is given connection permission from the monitoring terminal side, information is exchanged without going through the dedicated line on the management computer side, so there is no burden on the management computer side. Since the information terminal and the monitoring terminal are connected via the Internet and are in communication with each other by mutual communication, it is obvious that various commands can be exchanged following the command data.

  The monitoring terminal 4a obtains model information (cell phone, PC, etc.) of the information terminal accessed via the Internet, and information on the user (here, user A) accessing based on the obtained information. Image frame adjustment or the like is performed in accordance with terminal model information (cell phone, PC, etc.), and the temporarily stored (accumulated) compressed data is stored in an appropriate file format such as a cell phone. In this case, the MPU 65 has a data conversion display function so that it can be converted into C-HTML and personal computer can be converted into HTML.

  The MPU 65 temporarily stores compressed data in a storage device, and stores the temporarily stored compressed data in accordance with the data transmission rate of the communication line to the information terminal of the accessing user such as the mobile phone 11. It is supposed to send.

  The conversion data including the compressed data obtained by the browser of the mobile phone 11 which is the user's information terminal is appropriately decompressed and the image data is displayed on the display screen 16 and the sound data is D / A converted. Then, it can be output from the earphone terminal port 17.

  When the monitoring terminal 4 first connects the management computer 3 with a line, an ID is assigned in advance to the monitoring terminal side, and the monitoring terminal communication line board 38 on the management computer 3 side is monitored. When there is a connection request from the terminal side, it accepts the IP address and predetermined ID assigned to it, and uses the user database (DB) in which the predetermined ID assigned to the monitoring terminal side is registered, The CPU 31 performs a search, confirms whether the transmission content is from the regular monitoring terminal 4a, and completes the line connection.

  Here, as described above, the IP address is allocated from the ISP on the monitoring terminal side. However, if the ISP is out of service, a power failure, a temporary line disconnection, or the like occurs, the ISP provider is next in a state of being always connected. In many cases, a new IP address is reassigned to the monitoring terminal. In such a situation, it is necessary to change the IP address that is the address of the monitoring terminal already registered in the user DB on the management computer side. Therefore, the MPU 65 in the monitoring unit 1 basically controls the communication unit 71, but also manages the IP address (function as the IP address management unit shown in FIG. 7). The currently assigned IP address is always stored in memory and updated.

  At the time of temporary disconnection, this MPU 65 always connects itself to the global IP address of the management computer 3 stored in the internal ROM 66 when reconnecting to the Internet, as in the case of the above connection start. A function is provided, and it has a self-connection function that can request to register a new IP address.

  That is, when the IP address is changed, the MPU 65 stores the new IP address in memory, performs update processing, and starts connection processing for the global IP address of the management computer 3 itself. In this connection processing, a predetermined ID registered together with the IP address assigned to the monitoring terminal recorded in the user database (DB), that is, the monitoring terminal ID is sent to the management computer as a connection parameter. , Request to register a new IP address.

  Various connection states are conceivable. When the IP address is changed in a certain connection state, the MPU 65 determines the difference between the current IP address and the newly given IP address. It has a self-connection function that can send a monitoring terminal ID as a connection parameter to the global IP address of the management computer 3 stored in the ROM 66 and request a new IP address to be registered by processing the connection request. Preferably it is.

  That is, as shown in FIG. 8, as a function of the MPU 65, it is determined whether or not a change has occurred in the IP address. When there is no change, the standby state is maintained. If it has been changed, the new IP address is stored in memory and an update process is performed. Subsequently, it starts connection processing for the global IP address of the management computer 3 itself. In this connection process, a registered predetermined ID assigned to the monitoring terminal recorded in the user database (DB), that is, the monitoring terminal ID is sent to the management computer as a connection parameter, and a new one is sent. Request to register an IP address.

  As shown in FIG. 9, the management computer side determines whether or not there is a connection parameter that is a monitoring terminal ID when connecting from the monitoring terminal side. If connection parameters are not sent, access is denied. When connection parameters are sent and this monitoring terminal ID is registered in the user database (DB), connection processing is performed. Subsequently, the target monitoring terminal data is searched and extracted from the user database (DB). Furthermore, it replaces the old IP address registered in the user database (DB) with a new IP address, and updates the data.

  In addition, when the monitoring terminal changes its IP address while being always connected, or when reconnection to the Internet is possible, when the monitoring terminal itself performs connection processing to the global IP address of the management computer stored therein, the monitoring terminal It is also possible to provide a self-connection function that can request that the old IP address of the self instead of the ID be used as authentication data and the IP address newly assigned at that time be updated and registered. In the case of this example, the old IP address corresponding to the monitoring terminal is already stored in the user database (DB), so that it is possible to authenticate the connected monitoring terminal. The address may be responded to the update registration request.

  The converted data including the compressed data transmitted to the mobile phone 11 which is the user's information terminal is appropriately decompressed and the image data is displayed on the display screen 16 and the sound data is D / A converted. Although output from the earphone terminal port 17, the user A connected to the monitoring terminal via the Internet is provided in the mobile phone 11 in order to change the monitoring direction in which the image is taken. When the cross key or the like is operated, the operation data is transmitted to the monitoring terminal 4a via the relay server 6, and the control instruction data of the direction changing device 58 based on the transmission is created, and the user appropriately shoots in the direction desired to be viewed. It is possible to move the direction up, down, left and right. Also, by expanding the hardware and software of the monitoring terminal, various functions can be added, such as camera zoom operation, audio amplification, and audio from the user terminal being played through the speaker from the monitoring terminal side.

  When making a connection process to the global IP address of the management computer and requesting the update registration of the newly assigned IP address at that time, the monitoring terminal ID and its own old IP address are transmitted as authentication data. In some cases, for example, if the encrypted data is transmitted and decrypted by the management computer, the security is further improved. A network connection using a VPN server is preferable.

  Although the present invention has been described with reference to the drawings, the present invention is not limited to these embodiments, and it goes without saying that modifications and additions within the scope of the present invention are included in the present invention. .

  For example, in the embodiment, the monitoring terminal 4 has a shape that can be installed on the ceiling, but the present invention is not limited to this, and these monitoring terminals are wall-mounted or adapted to other installation locations. Needless to say, an appropriate shape may be used.

  Moreover, in the said Example, although the monitoring terminal was comprised from the monitoring unit 1 and the set top box 2, you may make it comprise the monitoring terminal by accommodating these in one housing | casing.

  In the above embodiment, one monitoring unit 1 is connected to the set top box 2. However, the present invention is not limited to this, and a plurality of routers that are transceivers of the same set top box 2 are provided. An address (private address) may be assigned and connected to each of the monitoring units 1. Further, the monitoring CCD camera 55 incorporating the charge coupled device (CCD) 54 is used as one monitoring camera unit, and a plurality of such monitoring camera units can be managed for addresses (here, the numbers of connection ports), and set. A plurality of surveillance camera units (4aa.4ab.4ac.4ba etc.) are connected to the surveillance unit 1 connected to the top box 2, and each surveillance camera unit (4aa.4ab.4ac.4ba etc.) is connected. Information may be selectively given to the monitoring unit 1 side.

  Moreover, in the said Example, although the set top box 2 and the monitoring unit 1 are connected with the communication cable 51, this invention is not limited to this, These set top box 2 and the monitoring unit 1 are connected. It may be connected by wireless communication, for example, a wireless LAN. The “connection” used here includes all wired and wireless connections.

  Here, although the monitoring terminal 4 side and the management computer 3 are connected using an ADSL line, a CATV line is used as a communication line for transmitting / receiving data to / from the management computer 3. Furthermore, it can be used in a constantly connected state via a dedicated line, a wireless Internet network, or an optical fiber.

  In the embodiment, the monitoring terminal communication line board 38 and the user communication line board 33 are individually provided. However, the present invention is not limited to this, and a number of lines are connected instead. The same possible communication line substrate may be used.

  When the monitoring terminal has a fixed IP address as the IP address, it is not necessary to update the IP address of the user database in the management computer one by one.

It is a block diagram which shows the structure of the monitoring system of the specific area | region in the Example of this invention. It is a block diagram which shows the structure of the monitoring system of the specific area | region in the Example of this invention. It is an external appearance perspective view which shows the monitoring unit used in the Example of this invention. It is a block diagram which shows the structure of the monitoring terminal used in the Example of this invention. It is a block diagram which shows the structure of the management computer used in the Example of this invention. It is an external view which shows the mobile telephone as an information terminal which the user used in the Example of this invention carries. It is a flowchart which shows the flow of the monitoring process in the specific area | region monitoring system of the Example of this invention. It is a processing flow figure by the side of the monitoring terminal in the Example of this invention. It is a processing flow figure by the side of the management computer in the Example of this invention. It is a block diagram which shows the structure of DSL which is a communication means used in the Example of this invention.

Explanation of symbols

1 Monitoring unit 2 Set-top box (communication means)
3 Management computer 4a Monitoring terminal (installation terminal)
4b Monitoring terminal (installation terminal)
4c Monitoring terminal (installation terminal)
5 Communication network 11 Mobile phone 14 Personal computer 15 Notebook computer 16 Display screen 17 Earphone terminal 30 Data bus 31 Central processing unit (CPU)
32 RAM
33 Communication circuit board 34 Display device 35 Storage device 36 Input device 37 Real-time clock (RTC)
38 Communication Terminal Board for Monitoring Terminal 50 Case 51 Communication Cable 52 PCM Codec 53 Sound Collecting Microphone 55 Monitoring CCD Camera 56 Digital Signal Processor (DSP)
58 Direction change device 59 Driver 65 MPU
66 Internal ROM
67 Battery 68 Cover 69 Pilot lamp (LED)
70 SRAM
71 Communication Department

Claims (2)

Installed in a communication network consisting of the Internet or a telephone network, and installed in order to directly connect the information terminal to the accessing information terminal with a link based on a peer-to-peer communication method using the Internet. An information supply system using a communication line in a management computer that gives a terminal-side IP address,
The management computer side includes a user database in which an installation terminal ID on the installation terminal side and an IP address on the installation terminal side that is updated and registered as the latest data are associated with each other,
The management computer side
A means for receiving the installation terminal ID and the IP address of the installation terminal transmitted from the installation terminal side, and updating the corresponding installation terminal IP address;
The installation terminal side
The difference between the old IP address and the newly assigned IP address due to the reassignment of the IP address of the installed terminal by the same provider is judged. If there is a difference, the global IP address of the management computer stored in the internal IP address is determined. An information supply system using a communication line, characterized in that it has a self-connection function that can request connection and update registration of a new IP address based on its own installed terminal ID. When the installation terminal is newly connected or reconnected to the Internet, the installation terminal is provided with a function of performing connection processing for the global IP address of the management computer stored in the installation terminal. The information supply system using a communication line according to claim 1, which has a self-connection function capable of requesting registration or update registration of an IP address assigned at that time based on an ID .

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