KR20110064140A - Child Protection Loss Prevention System - Google Patents

Abstract

The child protection system for preventing child protection possesses a terminal which generates a unique code signal for identification to a child, and performs the continuous and continuous monitoring through a broadband information network network to identify the child's movement and find a lost child. A child protection system for preventing child protection improved to safeguard and manage children.

The present invention provides a mobile terminal, comprising: a handheld node terminal having a child or a mother and radiating a radio signal containing information on a unique identification code assigned to each child; Detect and analyze the radio signal from the own node terminal and perform control management in the middle through mutual communication with the integrated management server, and interim management installed around the living and various places to monitor and check the child or the lost child. An apparatus; An integrated management server that confirms, accepts and controls the rental and return request of the customer who wants to use the system, and analyzes and confirms the information according to the communication with the possession node terminal to check and manage the state of the child or the child as a whole; It is configured to include.

Accordingly, the present invention provides a foundation for managing children or children without being restricted by conditions such as areas or places, indoors or outdoors, in a situation where a network capable of receiving signals from children or children is established. It offers many benefits, including protection and management.

Child, Mia, Control, Server, Possession, Unique Code, OS, Radio

Description

Juvenile protection system with search for lost children}

The present invention relates to the protection of children and the prevention of childhood, and more particularly, to carry a child's own terminal that generates a unique code signal for identification to the child and carry out continuous and continuous monitoring through a broadband information network. It relates to a child protection system for preventing child protection, which is designed to protect and manage children by identifying and finding children.

As crimes against children and children increase in modern society, there is a growing interest in protecting them. This is in line with a more liberal society and an increasing number of family-oriented outings.

It is also of concern that crimes against children and children are becoming more intelligent and violent. There is a movie about child abduction, and there is an incident that mimics the movie, adding to its seriousness.

In recent years, many people have been shocked, including the appearance of murders after children are kidnapped.

To cope with this, police are also operating the 'Amber System' to respond early to the public by telling all citizens of a lost child or missing or abducted child or child.

Most people think that Mia is something else, but like a car accident, Mia is always a problem that can happen to us.

Therefore, printing children's fingerprints, or pulling hair and keeping them in plastic bags is a very preventive method that can be very helpful in the future. It is also important to prepare ahead of time and make sure children have preventive education.

In addition, a managed system has been developed and used to protect children and prevent 'mummy'.

As one of such managed systems, it is a system to protect children in a limited space and prevent the loss of children. It plays a role of observing the movement of a child in a nursery or academy. There is only a problem with observing.

In addition, the system also shows an advanced type of service that checks the movement of a child at work or home through the Internet. However, this type of service has a disadvantage in that it does not function properly outside of the risk of accident.

In addition, anti-lost devices that generate an alarm when the separation distance between the child and the guardian of the child become more than a predetermined distance are being distributed, but a device or system as a solution that can protect the child from the risk of missing or kidnapping Is not a reality.

Therefore, there is a need for development of a method capable of proactively protecting the child from the risk of childbirth or kidnapping by not only accurately guiding the child's position but also tracking the child's movement path.

Therefore, the present invention for solving the above-mentioned problem is to possess a hand node terminal that emits a radio signal to a child or a mia, and receive and detect the radio signal and control and control in the middle through mutual communication with the integrated management server Intermediate management device to perform the operation is installed around the living and various places, while confirming, accepting and controlling the rental and return request of the customer who wants to use the system by the integrated management server and at the same time according to the communication with the other node terminal The aim is to provide a child protection system for preventing child protection by analyzing and confirming the information so that the status of children or children can be identified and managed as a whole.

The present invention provides a mobile terminal, comprising: a handheld node terminal having a child or a mother and radiating a radio signal containing information on a unique identification code assigned to each child; Detect and analyze the radio signal from the own node terminal and perform control management in the middle through mutual communication with the integrated management server, and interim management installed around the living and various places to monitor and check the child or the lost child. An apparatus; It includes an integrated management server that confirms, accepts and controls the rental and return request of the customer who wants to use the system, and analyzes and confirms the information according to the communication with the own node terminal to check and manage the state of the child or the child as a whole. This is a feature of the child protection system.

In the child protection lost prevention system, the integrated management server is connected to a plurality of users through an online network, and a web server for providing a web service in conjunction with the requests from the users; A communication server configured to communicate with intermediate management devices installed in the places to receive dynamic information on the dynamics of the child or the lost child, and to transmit management information and signals to the intermediate management device; A control server which receives the information from the communication server, grasps and checks the state of the child or the lost child, and outputs a control signal to each component to control and manage the information; A database server receiving the processed information from the control server and providing a database with information required for the control server; It is preferable to comprise.

In addition, in the child protection loss prevention system, the intermediate management device, the server communication stage for communicating information with each other by performing communication with the central management server; A node communication terminal for communicating with a handover node terminal possessed by the child or the lost child; A signal conversion stage for extracting information from a signal received through the server communication node and the node communication terminal according to a designated communication method, and converting the output information from the following device control terminal into a designated radio signal; An apparatus control stage for analyzing and calculating information from the signal conversion stage, and for operating and controlling the intermediate management apparatus itself according to the analysis and calculation result; It is preferable to comprise.

In addition, the child node terminal in the child protection lost child system, the power supply terminal is configured to receive a plurality of paths for power supply for its own supply; A signal output stage for generating and outputting a signal for a unique classification code respectively given to a child or a child who is protected and managed through the system; A signal receiver for receiving the information signal from the intermediate management apparatus; A terminal control stage for transmitting and receiving and exchanging information signals with the intermediate management apparatus and controlling to operate according to a signal from the system; It is preferable to comprise.

And the child protection loss prevention system, the alarm module to announce or warn when the child leaves the predetermined place; A warning module capable of warning the light; A photographing module for photographing a vicinity of a place where the child is determined to be present; It is possible to comprise any one or more.

In addition, in the child protection child protection system, the communication between the integrated management server and the intermediate management device is performed in the form of WiBro (Wireless Broadband) which is one of wireless Internet access standards; Communication between the intermediate management device and the own node terminal is performed in the form of ZigBee (ZigBee), a low-power wireless short-range standard communication technology designed to have low power, low cost, and ease of use; More specifically, communication between the intermediate management device and the handheld node terminal in the form of IEEE 802.15.4a with the addition of ZigBee location recognition and low power capability, which is a low-power wireless short-range standard communication technology designed to have low power, low cost, and ease of use. This is preferably done.

In addition, in the child protection child protection system, the holding node terminal is calculated by the osmosis method of at least three intermediate management apparatus capable of receiving a signal from the holding node terminal; The intermediate management apparatus performs a gateway function between the integrated management server and the own node; At least one of the intermediate management apparatus and the own node terminal is designed based on Microsoft's Windows OS (Windows Operation System); At least one of the intermediate management device and the own node terminal is preferably designed based on Linux OS (Linux Operation System).

And it provides a detailed description of each component of the anti-child protection system of the present invention, the description of each of these components can be implemented or carried out individually or in combination.

The present invention provides a foundation for managing children and children without being restricted by conditions such as areas or places, indoors or outdoors, in a situation where a network capable of receiving signals from children or children is established. There is an effect that makes it possible to manage.

In addition, it is also possible to provide services for the protection or management of children or children to the family or child caregivers in real time.

In addition, it is possible to implement the same function at a lower cost than the existing location recognition using GPS, CDMA, and there is an advantage that can be operated without a separate communication cost.

In addition, by providing the service related to the present invention at low cost and high efficiency, it is possible to maintain various advantages in competition with other systems.

The child protection system for preventing child protection according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining the overall configuration of the child protection system for preventing children lost in accordance with an embodiment of the present invention, Figure 2 is a child node of the child or the lost in the area where the child protection system for children 1 The figure for demonstrating the concept about the communication until now is shown.

In addition, Figure 3 is a diagram showing the integrated management server in the child protection child protection system of Figure 1, Figure 4 is a view showing a simplified communication made in the child protection child protection system of FIG.

Child protection child protection system 10 according to the present embodiment, the central management unit 110, the intermediate management device 120 is installed in various places, and possessed by children (Kd) or Mia (Kx) It can be largely divided into the possession node terminal 130.

In the child protection loss prevention system 10 of the present embodiment, first, the integrated management server 110 confirms, accepts and controls the rental and return request of the customer who wants to use the child protection loss prevention system 10, and possesses It is a component that checks and manages the state of the child Kd or the lost child Kx by analyzing and confirming the information according to the communication with the node terminal 130.

In addition, the intermediate management device 120 detects and analyzes the radio wave signal from the own node terminal 130 and performs control management in the middle through mutual communication with the integrated management server 110, and the child (Kd) or the lost child (Kx). It is a component that is installed around living and various places to monitor and check).

In addition, the possession node terminal 130 is a component that emits a radio signal containing information about the unique identification code given to each child (Kd) or Mia (Kx).

Although briefly described above, the overall control management of the child protection child protection system 10 is centrally managed by the integrated management server 110.

That is, the integrated management server 110 confirms and accepts the request of the client (C, client client) using the child protection child protection system 10, responds and controls according to the request, and ultimately the child (Kd) or Mia (Kx) is to identify the location of the child (Kd) or Mia (Kx) through the communication with the possession of the possession of the terminal 130, and overall management.

This integrated management server 110 is connected to a plurality of users through an online network, the web server 111 for providing a web service in conjunction with the requests from the users; Communication server for performing communication with the intermediate management device 120 is installed in various places to receive the dynamic information about the dynamics of the child or mia, and transmits the management information and signals for control to the intermediate management device 120 ( 112); A control server 113 which receives and receives information from the communication server 112 and checks and checks the state of the child or the lost child, and outputs a control signal to each component to control and manage it; It is configured to include a database server 114 for receiving the processed information from the control server 113, the database, and provides the necessary information to the control server 113.

In addition, the integrated management server 110 can be connected to other servers, such as the control center, computer, a plurality of client terminals (20c), and a notebook (20n) through an online network, such as the Internet, The user (User U, User; Client Client) is connected to each of the access terminal devices, and thus, the children Kd, that is, the customer (U, User; Client Client) through the child protection anti-lost system 10. You will receive a variety of services related to your child's location and care.

In addition, as shown, the service through the child protection child protection system 10 according to the present embodiment is wired and wireless communication through the broadband client network (BcN), as well as the general client terminal (20c) connected to the integrated management server (110). The service can be provided by the police 20p, the vehicle 20q, the mobile phone 20r, or the like.

5 is a view for explaining a communication process between the integrated management server and the intermediate management device in the child protection child protection system of FIG.

In the child protection child protection system 10, between the integrated management server 110 and the intermediate management device 120 can communicate and exchange information through a communication network of various paths, such as wired and wireless, in the present embodiment As shown in the figure, it is configured to use WiBro (Wireless Broadband), which is one of wireless Internet access standards.

WiBro enables simultaneous transmission and reception and multiple access, and has a bandwidth of 8.75Mhz on one channel. WiBro is designed to overcome the limitations of data rates for cell phones such as CDMA 1x and adds portability to broadband Internet access such as ADSL and wireless LAN.

The WiBro technology makes it possible to use stream footage or lossy material in a reliable way. In terms of its essential aspects, it is attracting attention as a next-generation communication service together with a separate service from the mobile communication or a high speed downlink packet access (HSDPA) of the third generation mobile communication.

A big technical feature of WiBro is that it adds mobility to wireless Internet access. The existing WIFI (Wireless-Fidelity) -based wireless LAN Internet access allows access to the Internet at a certain radius around an AP (Access Point) device, but because the AP device is fixed, it cannot escape a certain range. WiBro is capable of accessing the Internet while constructing and moving a service cell by applying multiple access (CDMA) technology of mobile communication. Therefore, in this embodiment, the intermediate management apparatus 120 is fixedly installed and operated. It is possible to find and explore children Kd or Mia Kx while moving or moving to special places.

FIG. 6 is a block diagram illustrating an intermediate management apparatus in the child protection system for preventing child loss.

The intermediate management apparatus 120 of this embodiment includes a server communication terminal 121 for communicating with each other by performing communication with the central management server 110; A node communication terminal 122 which communicates with the own node terminal possessed by the child Kd or the lost Kx; Signal conversion for extracting information from the signals received through the server communication terminal 121 and the node communication terminal 122 according to a specified communication method, and converts the output information from the device control terminal 124 into a specified radio signal Stage 123; And a device control stage 124 for analyzing and calculating the information from the signal conversion stage 123 and for operating and controlling the intermediate management apparatus 120 itself according to the result of the analysis and operation.

Through such a configuration, the intermediate management apparatus 120 continuously receives and analyzes radio waves radiated from the possession node terminal 130 to identify and identify the location of the child Kd or the lost child Kx and to identify and protect the moving lines. Will be performed.

In addition, the overall control and management of the child protection child protection system 10, such as the control between the intermediate management device 120 and the holding node terminal 130 is to be carried out in the central management server 110, the intermediate management device The control unit 120 receives the necessary control in such an operation process, and continuously manages and protects the child Kd by continuously detecting the radio wave signal from each of the possession node terminals 130 and performing communication.

In addition, the photographing module 1210c may be installed in order to observe the movement or behavior of the child Kd or the lost child Kx in association with the intermediate management apparatus 120. It is also possible to interlock by installing the alarm module (1210a) and the warning module (120b) capable of warning light.

In addition, the intermediate management device 120 as a single gateway (gateway) device that interconnects between the central management server 110 and the handheld node terminal 130 to be carried to children (Kd) or Mia (Kx). Of course, it also performs a function.

As shown in FIG. 2, the intermediate management apparatus 120 is installed at various places in the main places of the city, as well as at places where children Kd or Mia Kx are judged to be good to go or hide.

7 is a view for explaining a communication process between the intermediate management device and the child node terminal in the child protection child protection system of FIG.

As shown in the child protection child protection system 10, between the intermediate management device 120 and the mobile node terminal 130 is expected to be spotlighted as the next generation communication network (WPAN, Wireless Personal- ZigBee (ZigBee) is used as an area network, and communication is performed by adopting IEEE 802.15.4a which is similar to ZigBee (ZigBee) but has its own characteristics.

ZigBee (ZigBee) is one of the representative technologies of short-range wireless sensor network with low power, low cost, and ease of use. It is inexpensive, has low power consumption, and is small in size and program. Therefore, it is most suitable when the speed is not very fast at close range and the frequency of network usage is rare. In addition, the battery can be used for almost one year or more, the transmission speed can be up to 250 Kbps in the 2.4GHz band, and the chip is very cheap. Because of these advantages, it is expected to be standardized for remote monitoring, control and management, and to be configured and applied to home automation and various automations.

IEEE 802.15.4a is a next-generation communication technology that adds location recognition and low power functions to ZigBee (ZigBee) of RFID and Low Power Sensor Network Standardization Group. It is the next generation of technology that is expected to be applied and adopted as power generation and real-time location tracking systems.

The child protection child protection system 10 is configured to perform communication between the intermediate management apparatus 120 and the handover node terminal 130 by the ZigBee (Zigbee) and IEEE 802.15.4a.

FIG. 8 is a block diagram of the own node terminal of the child protection system for child protection.

As shown in the drawing, the own node terminal 130 includes: a power supply terminal 131 configured to receive power for supplying itself through a plurality of paths; A signal output stage 132 for generating and outputting a signal for a unique classification code respectively given to a child Kd or a child Kx protected and managed through the anti-child protection system 10; A signal receiver 133 for receiving the information signal from the intermediate management apparatus 120; It is configured to include a terminal control stage 134 for performing the transmission and reception and exchange of information signals with the intermediate management apparatus 120 and to operate according to the signal from the system.

In the holding node terminal 130, the power supply terminal 131 is generally operated by receiving power from a battery or a rechargeable battery, but may also be configured to enable additional power generation by solar light.

In addition, the terminal control unit 134 includes a circuit for recording and storing the unique identification code Cd assigned to the child Kd or the lost child Kx, so that the information on the unique identification code Cd is transmitted. Modulates and generates a radio wave signal including the unique identification code (Cd) information and outputs it to the signal output terminal 132 of the next stage, and finally the radio wave including the unique identification code (Cd) information is output from the signal output terminal 132. The signal is amplified and continuously radiated to the outside at regular intervals.

Then, the integrated management server 110 or the intermediate management device 120 receives and analyzes this signal to determine which child (Kd) or Mia (Kx) is located at which point in the area where the intermediate management device 120 is installed. You will know.

FIG. 9 is a view for explaining a process of calculating a child node terminal of a child or a lost child in the child protection lost child system of FIG.

As shown, in the anti-child child protection system 10 of the present embodiment, a radio wave signal including a unique identification code (Cd) information is first received, but a location where a child (Kd) or a child (Kx) is located is unknown. We use osmosis to find (T, the point we are looking for).

First, as shown in (a), the three neighboring intermediate management apparatuses 120 that have received the radio signal measure an angle from the reference line to calculate a point where they meet, or (b), the three neighboring intermediate that have received the radio signal. By narrowing the point where the management device 120 draws a circle, the expected point T is calculated. In addition, as shown in (c), it is also possible to calculate to find the point where the bisector of the two intermediate management apparatus 120 meets.

In addition, it is also possible to configure a method using the reception sensitivity of each intermediate management apparatus 120 or the time according to the echo of the specified pulse.

Of course, in each case, by setting the minimum receiving intermediate management apparatus 120 to 3, more cases are possible, and in this case, the precision can be improved more in finding the expected point T. In this embodiment, the first intermediate management apparatus is provided. In addition to 120, another intermediate management apparatus 120 may increase the precision of the predicted point T through a plurality of iterative operations.

FIG. 10 is a view for explaining a process of protecting a child, such as finding a lost child through the child protection lost child system.

As shown, first, when the child protection child protection system 10 is operated, the intermediate management apparatus 120 installed at various places continuously receives location information from the possession node terminal 130 and the like. Then, the central integrated management server 110 receives the information on each of the own node terminal 130 from the intermediate management device 120 installed everywhere. Through this, the integrated management server 110 analyzes the signals received from the intermediate management device 120 to determine the location of the user, that is, the child. However, if the first signal to some extent out of the designated condition or the signal from the own node terminal 130 is out of the set condition to go out of the preset condition, when the propagation abnormal signal is received, the integrated management server 110 receives this abnormal signal Will be received [Step 1]. Of course, in this process, it is possible to receive video signals or necessary information around the site [step 2].

In this case, the control center checks this and responds to the police station or related protection agency [Course 3], emergency dispatch [Course 4], and on-site verification [Course 5]. (Kx) is found. If a child (Kd) or a child (Kx) is not found, it will be carried out separately until relevant follow-up is found, such as a police investigation.

In addition, this process is notified to the family or guardian through SMS text or the Internet [step 6], and the family or guardian can check it in real time so that they can cope with each situation [step 7].

As described above, a child managed through the child protection system for child protection system 10 is set an area which should not be accessed or a specific area that should not be departed. If not performed, the integrated management server 110 determines this to generate warnings, dangerous situations, and the like.

In addition, in order to use the child protection child protection system 10, the user (user, client) is basically a member (P) through the control center of the client terminal (20c) or the child protection child protection system (10). Register and receive a membership card, member ID, and unique identification code (Cd) for a child (Kd). Of course, this registration process is similar to the general membership registration to check the personal information, contact information, residence, etc. of the member customer (P), the membership card, etc. will be received by visiting the site or delivery.

Information related to this process is transmitted to the centralized integrated management server 110 and stored in the database server 114, etc., thereby completing the database for use completion.

In addition, the child protection child protection system 10 is not only Microsoft's widely used Windows OS (Windows Operation System), but also each operating system (Operation System) such as open source Linux OS (Linux Operation System). It is possible to be conveniently configured to fit.

In the above description of the present invention, a specific embodiment has been described and described. However, the present invention is not limited thereto, and various modifications may be made by those skilled in the art without departing from the concept of the present invention. In addition to being practiced, these various implementations will be within the scope of the present invention.

1 is a view for explaining the overall configuration of a child protection anti-loan system according to an embodiment of the present invention.

FIG. 2 is a view for explaining a concept of communication from a region where the child protection system for preventing child protection is operated to a child node of a child or a child lost.

Figure 3 is a view showing the integrated management server in Figure 1 child protection system.

4 is a simplified diagram showing communication performed in the child protection system for preventing child loss of FIG.

5 is a view for explaining a communication process between the integrated management server and the intermediate management device in the child protection child protection system.

Figure 6 is a block diagram of an interim management device in Figure 1 child protection child protection system.

7 is a view for explaining the communication process between the intermediate management device and the child node terminal in the child protection lost child prevention system.

FIG. 8 is a block diagram of the own node terminal in the child protection system for child protection lost.

FIG. 9 is a view for explaining a process of calculating a child node terminal of a child or a lost child in the child protection system for preventing child loss.

FIG. 10 is a view for explaining a process of protecting a child, such as finding a lost child through the child protection lost child system.

          <Explanation of symbols for the main parts of the drawings>

Cd: Identification Code Kd: Child

Kx: Mia 10: Child Protection Loss Prevention System

110: integrated management server 111: web server

112: communication server 113: control server

114: database server 120: intermediate management device

121: server communication terminal 122: node communication terminal

123: signal conversion stage 124: device control stage

120: possession node terminal 131: power terminal

132: signal output terminal 133: signal receiving terminal

134: terminal control terminal 20c: client terminal

20p: police 20q: vehicle

20r: Mobile Phone

Claims (12)

In the system to protect children and prevent the loss of children, A possessing node terminal possessing the child or the mum and radiating a radio signal including information on a unique identification code assigned to each of the children and the children; Detect and analyze the radio signal from the own node terminal and perform control management in the middle through mutual communication with the integrated management server, and interim management installed around the living and various places to monitor and check the child or the lost child. An apparatus; An integrated management server that confirms, accepts and controls the rental and return request of the customer who wants to use the system, and analyzes and confirms the information according to the communication with the possession node terminal to check and manage the state of the child or the child as a whole; Child protection child protection system comprising a. The method according to claim 1, wherein the integrated management server, A web server connected to a plurality of users through an online network and providing a web service in association with a request from the users; A communication server configured to communicate with intermediate management devices installed in the places to receive dynamic information on the dynamics of the child or the lost child, and to transmit management information and signals to the intermediate management device; A control server which receives the information from the communication server, grasps and checks the state of the child or the lost child, and outputs a control signal to each component to control and manage the information; A database server receiving the processed information from the control server and providing a database with information required for the control server; Child protection child protection system comprising a. The method according to claim 1, The intermediate management device, A server communication stage which communicates with the integrated management server in the center to transfer information to each other; A node communication terminal for communicating with a handover node terminal possessed by the child or the lost child; A signal conversion stage for extracting information from a signal received through the server communication node and the node communication terminal according to a designated communication method, and converting the output information from the following device control terminal into a designated radio signal; An apparatus control stage for analyzing and calculating information from the signal conversion stage, and for operating and controlling the intermediate management apparatus itself according to the analysis and calculation result; Child protection child protection system comprising a. The method according to claim 1, wherein the holding node terminal, A power stage configured and configured to receive power for supplying itself through a plurality of paths; A signal output stage for generating and outputting a signal for a unique classification code respectively given to a child or a child who is protected and managed through the system; A signal receiver for receiving the information signal from the intermediate management apparatus; A terminal control stage for transmitting and receiving and exchanging information signals with the intermediate management apparatus and controlling to operate according to a signal from the system; Child protection child protection system comprising a. The method according to claim 1, An alarm module for announcing or warning when the child leaves the predetermined place; A warning module capable of warning the light; A photographing module for photographing a vicinity of a place where the child is determined to be present; Child protection child protection system, characterized in that it can be configured to further include any one or more. The method according to claim 1, A child protection system for preventing child protection characterized in that communication between the integrated management server and the intermediate management device is performed in the form of a wireless broadband (WiBro; Wireless Broadband). The method according to claim 1, Child protection child protection system, characterized in that the communication between the intermediate management device and the handheld node terminal is performed in the form of ZigBee (ZigBee), a low-power wireless short-range standard communication technology designed to have low power, low cost, and ease of use. The method according to claim 1 or 7, Communication between the intermediate management device and the handheld node terminal is performed in the form of IEEE 802.15.4a in which ZigBee (Zigbee), which is a low-power wireless short-range standard communication technology designed to have low power, low cost, and ease of use, is added. Child protection child protection system, characterized in that. The method according to claim 1, wherein the holding node terminal, The child protection lost prevention system, characterized in that the position is calculated by the osmosis method of at least three or more intermediate management apparatus capable of receiving a signal from the possession node terminal. The method according to claim 1, The intermediate management device, Child protection child protection system, characterized in that to perform a gateway (Gateway) function between the integrated management server and the own node terminal. The method according to claim 1, At least one of the intermediate management device and the own node terminal is designed based on Microsoft's Windows OS (Windows Operation System). The method according to claim 1, The child protection system for preventing child protection, characterized in that any one or more of the intermediate management device and the own node terminal is designed based on Linux Operating System (Linux OS).

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