KR101948010B1 - Terminal server for sensor and Distributed sensor network control system using the same - Google Patents

Abstract

The present invention relates to a terminal server for directly collecting, analyzing, storing and managing sensing data of a sensor, sending a sensor control signal transmitted from the control center to a connected sensor through bidirectional communication with a control center terminal, and acting as an intermediary of an interlocking device operated according to sensing information, and a distributed sensor network control system capable of efficiently managing, operating, and acquiring information of each sensor unit using the same. The terminal server of the present invention comprises a sensor port, a CPU board, and a communication port, wherein the sensor port is configured to receive the sensing data of the sensor and transmit the same to the CPU board, and transmit a sensor control signal transmitted through the CPU board to the sensor; the CPU board is configured to store the transmitted sensing data, classify sensing data that exceeds a preset threshold value in the transmitted sensing data as an event generation signal, and transmits the classified sensing data to the communication port; and the communication port is configured to send the transmitted event generation signal to a wired/wireless communication network, receive the sensor control signal transmitted through the wired/wireless communication network and transmit the sensor control signal to the CPU board.

Description

[0001] The present invention relates to a terminal server for a sensor and a distributed sensor network control system using the terminal server.

The present invention directly acquires, analyzes, stores, and manages sensing data of a sensor, provides a sensor control signal transmitted from the control center through bi-directional communication with a control center terminal to a connected sensor, The present invention relates to a distributed sensor network control system capable of efficiently managing, operating, and obtaining information of each sensor unit using a terminal server serving as a medium of a device and using the same.

A sensor is a device collecting signals related to the senses such as light, sound, chemicals, temperature, etc., and collecting them by a scientific method to identify the external state. Method is applied. Numerous sensors are installed in various facilities such as office, plant, ship, power generation facility, water treatment facility, and military boundary area for security, disaster prevention, access management, facility remote management, etc., The system is configured.

Conventionally, in order to monitor all the sensing information of tens to thousands of sensors in the control center, a master server that receives sensing information from all the sensors in the facility area and transmits the sensing information to the control center terminal was needed.

However, it is very difficult for the master server to collect all the sensing data of various sensors to analyze whether or not an event has occurred, and it is also inappropriate from the viewpoint of operation of the control system. Therefore, in the related art, when a change in the sensing object exceeding the threshold value is sensed by setting a threshold value in advance by controlling sensitivity for each sensor, the converter connected to the sensor converts the sensing information into an event generation signal, A centralized sensor network control system configured to transmit the generated signal to the master server has been operated. In such a centralized sensor network control system, the master server receives event occurrence information from the sensing area of each sensor node composed of sensors, converters, and communication elements, and transmits the event occurrence information to the control center terminal. It is configured to monitor the situation.

However, in the above-described centralized sensor network control system, an operation program must be set up for each sensor node, and the sensor node management program is dependent on the operation program of the master server. In addition, the sensor node only transmits an event generation signal and can not receive the control signal from the master server and transmit it to the sensor. For example, the sensitivity of the sensor, the rebooting, and the checking of the malfunction have been forced by the manager to visit each sensor installation site manually. In addition, since only the event generation signal is transmitted in the sensor node, continuous sensing data of each sensor can not be separately stored and managed, and various sensing data of various high performance sensors can not be utilized sufficiently. Most of all, if the master server is damaged by a disaster or becomes a target such as hacking or bombing, there is a problem that the entire control system is paralyzed or destroyed.

1. Patent document 10-0842286 "Information providing system using sensor node including lightweight web server and method thereof" 2, No. 10-1205671 entitled " Distributed control system of sensor network, local node for this and method therefor " 3. Publication No. 10-2014-0072462 "Dynamic real-time monitoring service system and method using sensor network" 4. Patent Document 10-1773330 entitled " Method for Detecting Information in Distributed Wireless Sensor Network and Distributed Wireless Sensor Network "

The present invention is directed to overcome the problems of a centralized sensor network control system. The present invention relates to: 1) individual management and operation of each sensor, 2) sensing data collection, storage, analysis and utilization of each sensor, 3) disaster, hacking, 4) efficient control of interlocking devices such as cameras, warning lights, sprinklers, and 4) enhancement of system scalability, and a distributed sensor network control system using the same. .

In order to solve the above-mentioned problems, the present invention provides a sensor system including a sensor port, a CPU board and a communication port, the sensor port receiving sensing data of the sensor and transmitting the sensed data to the CPU board, A sensor port for transmitting a control signal to the sensor; A CPU board for storing transmitted sensing data, classifying sensing data exceeding a preset threshold value in the transmitted sensing data as an event generation signal, and transmitting the classified sensing data to the communication port; And a communication port for transmitting the generated event generation signal to the wired / wireless communication network, receiving the sensor control signal transmitted through the wired / wireless communication network, and transmitting the sensor control signal to the CPU board; And a terminal server for a sensor configured including the terminal.

The sensor port may include at least one of a relay communication port, a serial communication port, and an Ethernet communication port.

Further, the present invention provides a power supply system comprising: a power supply port which supplies an applied power to one or a plurality of sensors and is controlled by an on / off signal transmitted through the CPU board; And a terminal server for a sensor, characterized by further comprising:

Further, the present invention can be applied to an interlocking device port connected to any one or more interlocking devices of a camera, a warning light, and a speaker. And the CPU board is configured to transmit the event generation signal to the communication port and also to the interlocking device port.

The present invention also relates to " a plurality of sensors arranged in a dispersed manner; A terminal server according to any one of claims 1 to 4 connected to each of the plurality of sensors through a sensor port; And a control center terminal connected to a communication port of the terminal server via a wired / wireless communication network; And a distributed sensor network control system configured to include a plurality of sensor nodes.

The following effects can be expected by applying the terminal server for sensors provided by the present invention and the distributed sensor network control system using the same.

1. Sensitivity control of many sensors, normal operation check, and rebooting can be performed remotely through the control center terminal.

2. Each sensor is connected to a terminal server, which can distribute or delay hacking or physical attacks (hacking or physical attacks are virtually impossible).

3. Conventional centralized sensor network control system may cause loss of the master server due to disasters such as fire, flood, earthquake, etc. However, the risk is dispersed in the present invention and recovery can be easily performed by sensor and terminal server unit.

4. The CPU board of the terminal server can collect the sensing data of the sensor even if the event does not occur, generate the accumulated big data, analyze the pattern of the situation change through the big data, and predict the occurrence of the specific situation.

5. Accurate and quick response (camera shooting, lightening and / or warning sound) can be made to the emergency situation (event occurrence situation) through the configuration of the interlocking device port.

6. Sensor network It is easy to replace sensors and expand the system according to the life cycle of the system.

1 is a schematic diagram of a conventional centralized sensor network control system.
2 is a schematic diagram of a distributed sensor network control system provided by the present invention.
3 is a structural diagram of a terminal server provided by the present invention.

The present invention solves the problems of the centralized sensor network control system mentioned in the Background of the Invention, and it can be used for: 1) individual management and operation of each sensor, 2) sensing data collection, storage, analysis, 4) Distributed sensor network control system that can obtain effects such as efficient control of interlocking devices such as camera, warning light, and sparker, and 4) enhancement of system scalability. .

The present invention includes a plurality of sensors distributedly arranged; A terminal server connected to each of the plurality of sensors via a sensor port; And a control center terminal connected to a communication port of the terminal server via a wired / wireless communication network; And a distributed sensor network control system.

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

2 is a schematic diagram of a distributed sensor network control system provided by the present invention. A plurality of distributed sensors 11 are connected to a terminal server 100 and the terminal server 100 is connected to a control center terminal 40 via a wired and wireless communication network. The customs center terminal 40 receives an event generation signal transmitted from a plurality of terminal servers 100. The unique identification information is assigned to each of the plurality of sensors 11 distributed in a distributed manner so that the control center terminal 40 can recognize at which point the event has occurred and display it on a monitor, And the like can be monitored.

3 is a structural diagram of a terminal server 100 applied to a distributed sensor network control system. The terminal server 100 includes a sensor port 110, a CPU board 120, and a communication port 130. The terminal server 100 may be a kind of a single board computer and may be provided with a unique identification number matching the unique identification number of the sensor.

The sensor port 110 receives sensing data of the connected sensor 11 and transmits it to the CPU board 120 and transmits a sensor control signal transmitted through the CPU board 120 to the sensor 11 . Since the sensing data transfer method of the sensor 11 can be classified into a relay communication method, a serial communication method, and an Ethernet communication method, the sensor port 110 is also connected to the relay communication port 111, A serial communication port 112, and an Ethernet communication port 113, as shown in FIG. Preferably, the relay communication port 111, the serial communication port 112, and the Ethernet port 113 are all provided so that they can be connected to any sensor.

However, since the relay communication method is generally adopted in a low-cost sensor, the relay communication port 111 may be configured to be connected to a plurality of (four to eight) sensors 11 through a module.

The sensor control signal transmitted through the CPU board 120 may be transmitted from the control center terminal. A detailed description of this point will be given later.

The CPU board 120 stores sensed data transmitted from the sensor port 110 and classifies sensed data exceeding a predetermined threshold value in the transmitted sensed data into an event generation signal and transmits the sensed data to the communication port 130 do. The CPU board 120 stores all the sensing data transmitted through the sensor port 110, thereby continuously accumulating important information for operation and management of the sensor network control system. That is, although the CPU board 120 sends an event generation signal to the control center terminal, all the sensing information of the sensor connected to the CPU board 120 is accumulated in the memory of the CPU board 120 itself.

Especially, big data storing sensing data according to time can be analyzed to identify patterns of event occurrence according to time, or to capture patterns of significant motions less than an event threshold value, and to utilize them as predictive data for a specific issue in the future. For example, in a case where a human movement is set as a threshold value by adjusting sensitivity to a sensor capable of capturing motion of an object such as an infrared sensor, a laser sensor, or a microwave sensor, Only the sensing data of the animal is classified as "event occurrence ", but the movement of a small animal is also accumulated as sensing data so that the movement pattern of a small animal in the characteristic region can be analyzed.

However, in the distributed sensor network control system according to the present invention, the prediction of a specific issue is obtained by the big data analysis as described above, and the vulnerability, trend analysis, and the like are applied to the centralized sensor network control system The application range can be extended.

The communication port 130 transmits an event generation signal transmitted from the CPU board 120 to a wire / wireless communication network, receives a sensor control signal transmitted through the wire / wireless communication network, . According to such a configuration, the control center terminal can receive an event occurrence status for each sensing area of each sensor, display a related situation on a monitor so that an administrator can check it, or recall a shooting screen of a camera that controls an event occurrence area.

In addition, the communication port 130 of the wired / wireless communication network 20 and the terminal server 100 may be used in a manner that the sensor control signal is transmitted from the control center terminal. The sensor control signal transmitted from the control sensor terminal is transmitted to the sensor via the communication port 130, the CPU board 120 and the sensor port 110. The control center terminal 40 controls the sensor (Such as checking whether the power is not supplied, checking the failure status, etc.) can be performed remotely. This is also an operation that can not be performed in the conventional centralized sensor network control system.

The terminal server 100 may further include a power port 140. The power supply port 140 may be configured to supply the supplied power to the terminal server 100 and to distribute the power to the sensor 11 as well. That is, power for operating the sensor 11 can be supplied through the terminal server 100. [ In the present invention, the power port 140 is controlled by an on / off signal transmitted through the CPU board 120 so that the on / off control signal of the power port 140 is transmitted to the control center And is supplied to the power supply port 140 through the terminal 40, the wired and wireless communication network 20, the communication port 130 of the terminal server 100 and the CPU board 120, Can be controlled. The operation center of the sensor can be remotely checked by the control center, and if necessary, the power supplied to the sensor 11 can be shut off and re-supplied to reboot the sensor. This is also an operation that can not be performed in a conventional centralized sensor network control system.

The power supply port 140 may be connected to a plurality of sensors 11 so as to form a module so that a plurality of sensors 11 constituting a module can be rebooted through on / off control of one power supply port 140.

In addition, the terminal server 100 may further include an interlocking device port 150. The interlocking device port 150 is connected to one or more interlocking devices such as a camera 50, a beacon light 60 and a speaker 70. The CPU board 120 transmits the event signal to the communication port 130, And also to the interlocking device port 150.

The conventional centralized sensor network control system receives the event generation signal generated by the sensor node 10 composed of the sensor 11 and the converter 12 and transmits the event generation signal to the control center terminal 40, The control center terminal 40 drives the camera 50, the beacon light 60, the speaker 70, and the like in the event occurrence area. Therefore, a time interval of several seconds between the occurrence of an event situation and the operating point of the camera 50, the beacon light 60, the speaker 70 and the like is inevitable, and the time interval becomes more frequent according to the communication state .

The present invention further includes an interlocking device port 150 to the terminal server 100 so that the event generating signal is immediately transmitted to the control center terminal 40 and the camera 50, And can be used as a signal for driving the speaker 70 or the like (simultaneous action and report on the event). Accordingly, the camera 50 connected to the interlocking device port 150 can photograph and store the still shot directly to the object to be intercepted, so that the beep light of the beacon light 60 or the beep sound of the speaker 70 can be transmitted immediately can do.

The present invention has been described in detail with reference to the preferred embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, but may be modified and changed without departing from the gist of the present invention. The claims of the present invention thus include such modifications and variations.

10: sensor node 11: sensor 12: converter
20: wired / wireless communication network 30: master server 40: control center terminal
50: camera 60: warning lamp 70: speaker
100: Terminal server 110: Sensor port 111: Relay communication port
112: Serial communication port 113: Ethernet communication port 120: CPU board
130: Communication port 140: Power port 150: Interlocking device port

Claims (5)

Sensor port, CPU board and communication port,
Wherein the sensor port includes a sensor port for receiving sensing data of a sensor and transmitting the sensed data to the CPU board and transmitting a sensor control signal transmitted through the CPU board to the sensor;
A CPU board that continuously stores and accumulates transmitted sensing data, classifies sensing data that exceeds a preset threshold value in the transmitted sensing data as an event generation signal, and transmits the classified sensing data to the communication port; And
A communication port for transmitting the generated event signal to the wired / wireless communication network, receiving a sensor control signal transmitted through the wired / wireless communication network, and transmitting the sensor control signal to the CPU board; And
An interlocking device port connected to one or more interlocking devices of a camera, a warning light, and a speaker; Further comprising:
Wherein the CPU board is configured to transmit the event generation signal to the communication port and also to the interlocking device port.
The method of claim 1,
Wherein the sensor port comprises at least one of a relay communication port, a serial communication port, and an ethernet communication port.
The method of claim 1,
A power supply port which supplies an applied power to one or a plurality of sensors and is controlled by an on / off signal transmitted through the CPU board; And a terminal server for the sensor.
delete A plurality of sensors arranged in a distributed manner;
A terminal server according to any one of claims 1 to 3 connected to each of the plurality of sensors through a sensor port; And
A control center terminal connected to a communication port of the terminal server via a wired / wireless communication network; And a distributed sensor network control system.

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