KR100855234B1 - Power Line Communication Sensor, Security System Comprising the Sensors, and Method for Registering Information about the Sensor - Google Patents

Abstract

Disclosed are a power line communication sensor, a security system having the sensor, and a sensor registration method thereof. The security system of the present invention includes a main device and at least one sensor, and each sensor is connected to the main device according to a power line communication (PLC) method. In addition, each sensor can facilitate installation and registration of the sensor by providing the main unit with information on the guard block or information on the sensing method, in addition to the abnormal state information using power line communication.

Security system, sensor, power line communication

Description

Power line communication sensor, security system with sensor and method for registering the sensor {Power Line Communication Sensor, Security System Comprising the Sensors, and Method for Registering Information about the Sensor}

1 is a block diagram of a security system according to the prior art,

2 is a block diagram of a security system according to an embodiment of the present invention;

3 is a view showing an example of the configuration of the security system of the present invention, and

4 is a flowchart provided to explain an operation method of the PSI sensor of the present invention.

The present invention relates to a security system including a main device and at least one sensor, and more particularly, each sensor is connected to the main device by a power line communication method to form a network, comprising a sensor network by power line communication. A security system and its sensor information registration method.

1 is a block diagram of a security system according to the prior art.

Referring to FIG. 1, the security system 100 includes a main device 110 and a plurality of sensors 131 to 137 connected to the main device 110.

The main device 110 includes a plurality of loop terminals and transmits various information including abnormal signals received from the sensors 131 to 137 connected to each loop to a control device (not shown) through a predetermined network. By monitoring and guarding specific areas of security.

The sensors 131 to 137 generate an abnormal signal corresponding to an abnormal state occurring in a specific area that is a security target, and transmit the abnormal signal to the main device 110 in a contact manner.

The sensors 131 to 137 include types 131, 133, and 135 that operate by being supplied with power, and 137 that operate without power. A typical infrared sensor operates by receiving a separate operating power from the main device 110 or the like. Therefore, the sensor and the main device 110 are connected by four wires. Two of them are power lines 151 for supplying power, and the other two lines are signal lines 153 for transmitting the state of the sensor.

A sensor that operates without an operating power source includes a magnet detector. The magnet sensor installed on the upper side of the door is a sensor in which the internal switch operates according to whether the magnets installed in the door are separated, and operates without power. In such a sensor, only a signal line for transmitting an abnormal signal is connected to the main device 110 without connecting a power line.

Representative sensors of the power supply type include infrared, heating wire, gas, and fire detectors. Representative sensors of the non-power type include magnet, vibration, and glass detectors.

Each sensor 131 to 137 outputs an abnormal signal when an abnormal condition occurs according to its operating characteristics, and the output is in the form of a mechanical switch contact such as a short or open. That is, in the normal state, the short circuit or disconnection state is maintained, and when an abnormal condition occurs, the state changes to the contact state of the disconnection or short circuit, which is the contact of the opposite type to the initial state. Using the contact characteristics corresponding to the abnormal state, the main device 110 determines whether an abnormal state occurs in the guarded area of the corresponding sensors 131 to 137, and transmits an abnormal signal to the control center in the abnormal state.

According to the prior art method, a sensor requiring a power source must be supplied with power directly from the main device 110 through a power line. When the security system 100 is normally installed in a building that has already been constructed, and the corresponding target area is divided into a predetermined number of blocks, signal lines and power lines of the security system 100 must be separately installed for each block. With the difficulty of installation, the installation cost is increased.

In addition, the main device 110 according to the conventional method is to unilaterally receive only the presence or absence of simple sensing from the sensors 131 to 137, and the main device 110 transmits a predetermined control command to the sensors 131 to 137. It is impossible to carry out its functions.

In addition, it is difficult to cope with sensor misunderstanding according to various installation environments, and it is impossible to provide a service using various abnormal information such as abnormal state of the sensor.

An object of the present invention, in a security system comprising a main unit and at least one sensor, so that each sensor is connected to the main unit by a power line communication method to form a network to simplify the installation and registration of the sensor, The present invention provides a sensor of a power line communication system and a security system having the sensor.

Still another object of the present invention is to provide a sensor registration method for registering information on a sensor connected to a main device by a power line communication method to a main device without an administrator.

In order to achieve the above object, the security system according to the present invention includes at least one power line communication (PLC) sensor and a claim value.

The PSI sensor monitors a predetermined security target area and outputs abnormal state information.

The asserted value includes a first PSI communication unit configured to receive the abnormal state information by performing communication with the at least one PSI sensor according to a power line communication method through a power line for supplying operating power to the at least one PSI sensor. The received abnormal state information is transmitted to a control system through a separate network.

Here, each of the PSI sensors, the second PSI communication unit communicating with the first PSI communication unit via the power line, the sensor unit for monitoring a part of the guarded area by a predetermined sensing method and the monitoring result of the sensor unit And a sensor control unit which transmits the abnormal state information to the second communication unit, and controls the second communication unit to transmit the abnormal state information to the main unit.

Security system according to another embodiment of the present invention, when subdividing a predetermined security target area into at least one guard block, at least one PSI sensor each installed to monitor one of the at least one guard block and Include claims.

The asserted value communicates with the at least one PSI sensor according to a power line communication method through a power line for supplying operating power to the at least one PSI sensor, and thus the abnormal state information for the guarded area and the PSI sensor. Including a first PSI communication unit for receiving at least one of the information on the guard block is installed, transmits the abnormal state information for the guard block to the control system through a separate network.

Here, the PSI sensor further includes a setting unit together with the second PSI communication unit, the sensor unit, and the sensor control unit. The setting unit receives information about the guard block monitored by the sensor from the manager. The sensor controller may transmit the abnormal state information, the monitoring result of the sensor unit, and the information about the guard block set by the setting unit to the second PSI communication unit to control the second PSI communication unit to transmit to the main device. Can be.

Further, the PSI sensor may transmit the information on the guard block to the main device when the power is initially received from the main device and initialized.

According to an embodiment of the present disclosure, the sensor controller controls to transmit previously stored information about a sensing method to the main device through the second PSI communication unit, and the assertion value is transmitted to the control system. Information on the sensing method of the PSI sensor may be transmitted together.

According to another embodiment of the present invention, the security system is configured to monitor at least one general sensor for monitoring one of the guard blocks and the abnormal signal received from the at least one general sensor in a contact manner through the power line in the power line communication method. It may further include a PSI communication module for transmitting to the first PSI communication unit.

According to the present invention, a sensor information registration method of a security system for subdividing a predetermined security target area into at least one security block, and receiving information of a sensor installed in the at least one security block in advance to provide a predetermined security service, , Includes a plurality of steps.

The step of the main device for supplying the operating power to the at least one PSI sensor via the power line, initiating communication with the at least one PSI sensor via the power line in a power line communication method, after the communication start, Receiving, by the main device, information on the block information and the sensing method of the at least one PSI sensor, and information on the sensing method and the block information of the at least one PSI sensor received by the main device; And registering.

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

2 is a block diagram of a security system according to an embodiment of the present invention.

Referring to FIG. 2, the security system 200 of the present invention includes a main device 210, at least one Power Line Communication (PLC) sensor 230 and 250, a PI communication module 270, and a PI communication. At least one general sensor 273 connected to the module 270, and is connected to the control system via a predetermined network. In FIG. 2, only one PI communication module 270 is included, but a plurality of PI communication modules may be included. In addition, the security system 200 may include only one of at least one PSI sensor and at least one PSI communication module.

The security system 200 uses the at least one PSI sensor 230, 250 and the PSI communication module 270 information on the security abnormal situation occurring in a predetermined target area (hereinafter referred to as' abnormal state) Information '), and the collected abnormal state information is transmitted to the control system according to a predetermined security algorithm, so that the manager of the control system can grasp the security status of the corresponding security target area.

Transmission of data between the main device 210 of the present invention, the PI sensor 230, 250 and the PI communication module 270 is a DC power line communication through a power line 290 is supplied with DC power (DC PLC: Direct Current Power Line Communication, hereinafter referred to as 'Pelci'). The data communication of the PI method transmits and receives data in a manner of carrying a data signal modulated by a predetermined method on a power line for supplying DC power. Therefore, the Pelsi method does not require a separate signal line. Since the power supply used by the PSI sensors 230 and 250 and the PSI communication module 270 uses a DC power supply, data is sent to the DC power supply (about 6Vdc to 20Vdc) together.

The plurality of PSI sensors, the PSI communication module, and the main device 200 may be connected to one power line 290 to form a network. This not only facilitates the installation and management of the sensor, but also enables the control of the PSI sensors 230 and 250 and the PSI communication module 270 by the main apparatus 210. The distinction of each communication subject in power line communication is made by using address. The address is a data identifier for data transmission by the PSI method, and is included in data transmitted through power line communication.

The PSI sensors 230 and 250 and the PSI communication module 270 transmit information on at least one of a guard zone (or a guard block) and a sensing method to the main apparatus 210 in addition to the abnormal state information, thereby transmitting the main apparatus 210. ) Enables the registration process of the PSI sensors 230 and 250 and the PSI communication module 270 without the help of an administrator. This registration process is described again below.

The security system 200 blocks the entire security target area into multiple blocks to identify and efficiently monitor the access route of an accessor who is not allowed access due to no access authentication (hereinafter referred to as 'unauthorized accessor'). ), And by transmitting at least one abnormal state information obtained through at least one PSI sensor (230, 250) installed for each guard block to the control system, to enable efficient expenses. The expense block may include a final block for securing a final departure path of the security system 200 administrator (hereinafter referred to as “manager”). When the final block is set, the security system 200 controls the abnormal state information generated in the last block for a predetermined time required for the administrator of the security system 200 to input the start command of the guard and finally escape the target area. It should not be sent to the system and should be ignored. By dividing the target area into predetermined blocks, the security system 200 and the control system can manage the history of access paths, etc. of access persons (hereinafter referred to as 'unauthorized users') who are not allowed access due to lack of access authentication. Can be.

Hereinafter, the main device 210, the PSI sensors 230 and 250 and the PSI communication module 270 will be described in more detail.

The main device 210 includes a network interface unit 201, an input unit 203, a display unit 205, a first PSI communication unit 207, a memory 209, and a control unit 211. The main device 210 is connected to the control system through the network interface unit 201, and is connected to at least one PSI sensor 230 and 250 and the PSI communication module 270 through the first PSI communication unit 207. do.

The control unit 211 starts or releases the expenses according to the control command of the administrator through the input unit 203, transmits the result of the processing to the control system, and displays them on the display unit 205. The control unit 211 processes the abnormal state information of the PSI sensors 230 and 250 and the PSI communication module 270 received through the first PSI communication unit 207 according to a predetermined security algorithm to process the network interface unit ( 201), and the history is stored in the memory 209 or the like. In addition, the controller 211 may control the display unit 205 to display abnormal state information received from the PSI sensors 230 and 250 and the PSI communication module 270.

The control unit 211 may receive information on the security block and the sensing method of the sensor itself from the PSI sensors 230 and 250, and may perform a registration process for the corresponding PSI sensor. Since the security of the security system 200 for a predetermined security target area is made based on sensors installed in a predetermined security block, information on which sensor is connected to a specific security block should be registered in the main device 210. . Accordingly, the access route of the unauthorized person can be grasped, and based on the guard block information, the administrator can also grasp whether a series of signals are due to misinformation of the sensor.

The registration process of such a PSI sensor refers to the establishment of a guard block according to a predetermined expense plan for the corresponding security target area and to store and manage information on the PSI sensors assigned to the corresponding guard block.

When the control unit 211 transmits the abnormal state information on the specific guard block to the control system through the network interface unit 201, the control unit 211 can also transmit the information on the guard block and the sensor that detects the abnormal state occurred. have.

The first PSI communication unit 207 is a modem for modulating and demodulating data to be carried together on the power line 290 to which DC power is supplied by the PSI sensors 230 and 250 and the PSI communication module 270. Including), the data received from the Pelsi sensor 230, 250 and the Pelsi communication module 270 demodulated and transmitted to the control unit 211, or Pelsi sensor 230, 250 and the Pelsi communication module ( The data to be transmitted to the 270 is modulated and transmitted to the PSI sensors 230 and 250 and the PSI communication module 270. Accordingly, the first PSI communication unit 207 may transmit the control command of the control unit 211 to the PSI sensors 230 and 250 and the PSI communication module 270, and the PSI sensors 230 and 250 and The communication module 270 receives the abnormal state information transmitted to the control unit 211.

The first PSI communication unit 207 may be connected to at least one PSI sensor 230 and 250 and the PSI communication module 270 through one power line 290.

Hereinafter, the PSI sensor will be described based on the PSI sensor 230.

The PSI sensor 230 includes a sensor unit 231, a second PSI communication unit 233, a setting unit 235, and a sensor controller 237. The PSI sensor 230 includes a main unit (s) through one power line 290. 210). The first PSI sensor 230 is installed in a specific guard block to monitor the abnormality occurring in the area, and transmits the abnormal state information to the main device (210). In addition to the abnormal state information, the PSI sensor 230 may transmit the PSI sensor itself of the address, block information or information on the sensing method.

The block information of the PSI sensor 230 is information on the guard block that he monitors of the entire guard block. The information on the sensing method is information on the type of the sensor unit 231, and information on whether the sensing method of the sensor unit 231 is magnet sensing, vibration sensing, glass sensing, infrared sensing, safe sensing, temperature sensing, or the like. to be. Based on the sensing information, the administrator of the control system can obtain powerful information about the actual installation location of the sensor. The information on the sensing method may be set in the PSI sensor 230 so that the administrator or installer of the security system 200 may not directly set it. The information on the sensing method may simply correspond to information on a short or open line corresponding to a contact signal in an abnormal state of an existing sensor.

In addition, the PSI sensor 230 may change the event sensing sensitivity according to the control command of the main device 210. Hereinafter, each component of the PSI sensor 230 will be described.

The sensor unit 231 monitors the guard block by a predetermined sensing method and transmits the monitoring result to the sensor control unit 237. The sensing method may include an infrared sensing method, a sensing method according to whether the magnet is spaced apart, a vibration, a gas, a temperature sensing method, and the like.

The second PSI communication unit 233 is connected to the power line 290, and transmits and receives data in a PSI method with the first PSI communication unit 207 of the main device 210. The second PSI communication unit 233 transmits various information provided by the sensor control unit 237 to the host device 210. In transmitting the predetermined data to the host device 210, the second communication unit 233 transmits and receives data based on a preset address.

The setting unit 235 is an input unit for setting block information or a sensing method of the PSI sensor 230. The manager may input the block information or the sensor method of the corresponding PSI sensor 230 through the setting unit 235. The setting unit 235 may simply use a dip switch or the like. As described above, the sensing method is not set by the administrator through the setting unit 235, the sensor controller 237 may use the pre-stored value.

The sensor controller 237 controls the overall operation of the PSI sensor 230. The sensor control unit 237 transfers the monitoring result received from the sensor unit 231 and the block information read from the setting unit 235 to the second PSI communication unit 233, thereby causing the second PSI communication unit 233. Control to transmit the information to the host device (210).

When the sensor controller 237 receives the control command of the main device 210 through the second communication unit 233, the sensor controller 237 controls the sensor unit 231 to adjust the sensing sensitivity.

The PSI communication module 270 may be connected together with the power line 290 to which the PSI sensors 230 and 250 are connected to communicate with the main device 210. Although not shown in FIG. 2, the PSI communication module 270 may include the same configuration as the PSI sensors 230 and 250. However, instead of the sensor unit 231 of the PSI sensor 230, the PSI communication module 270 is provided with at least one terminal pair 271 for connecting the conventional general sensor 273 and the general sensor The abnormal signal may be received from the contact point 273 in a contact manner.

The abnormal state information generated by the general sensor 273 is transmitted to the main device 210 via the PSI communication module 270. The PSI communication module 270 has its own address like the PSI sensors 230 and 250 and may transmit its block information. However, according to an embodiment, the PI communication module 270 may not provide information on the sensing method to the main device 210. This PI communication module 270 may be applied to the case of diversifying the security for one small guard block as well as to secure the access path of unauthorized persons.

3 is a diagram showing an example of the configuration of the security system of the present invention.

The main device 310, the PI sensors 331 to 339, and the PI communication module 350 of FIG. 3 correspond to the main device 210, the PI sensor 230, and the PI communication module 270 of FIG. 2, respectively. And the same explanation.

The PSI sensors 331 to 339 and the PSI communication module 350 transmit their block information to the main device 310, so that the address of the corresponding PSI sensor in the main device 310 or the control system is assigned to a certain security block. Eliminates the need for a separate configuration process for installed sensors.

3 shows that the predetermined security target area is divided into first to third security blocks (a, b, c). Each PSI sensor 331 to 339 connected to the main device 310 is connected through one power line 370. The PSI sensors 331 and 333 are connected to the first guard block (a), the PSI sensors 335 to 339 are connected to the second guard block (b), and the PSI sensors are connected to the third guard block (a). The communication module 350 is connected. General sensors 351 to 353 are connected to the PI communication module 350.

As described above, the manager and the installer of the guard system 200 should establish a plan for the guard block to be in charge of each before installing the PI sensor (331 to 339) and the PI communication module 350. According to the plan for the established guard block, the installer is to set the guard block directly to the PI sensor (331 to 339) and the PI communication module 350 during the installation of the PI sensor. The PSI sensors 331 to 339 and the PSI communication module 350 transmit their block information to the main device 310, so that the main device 310 corresponds to the corresponding PSI sensors 331 to 339 and the PSI communication module ( 350 can be registered without the administrator. In addition, the PSI sensors 331 to 339 may also transmit information on the sensing method to the host device 310 for registration.

Preferably, the PSI sensors 331 to 339 and the PSI communication module 350 may transmit information on the corresponding guard block to the main device 310 when the PSI sensor 331 to 339 and the PSI communication module 350 are first connected to the main device 310.

The method of installing and registering the PSI sensors 331 to 339 and the PSI communication module 350 becomes more effective when the PSI sensors 331 to 339 and the PSI communication module 350 are replaced. When the PSI sensors 331 to 339 and the PSI communication module 350 are to be replaced, the block information is set to the same through the setting units of the PSI sensors 331 to 339 and the PSI communication module 350. The replacement is completed only by recognizing and registering only the PSI sensors 331 to 339 and the PSI communication module 350 replaced by the main apparatus 310, thus eliminating the process of re-registering the whole.

4 is a flowchart provided to explain an operation method of the PSI sensor of the present invention. Hereinafter, a method of operating the PSI sensor of the present invention will be described with reference to FIGS. 2 to 4. The method of FIG. 4 and the following description also apply to the PSI communication module 270 based on the description of the PSI communication module 270.

When the PSI sensor 230 is connected to the main device 210 and receives power from the power line 290, it performs initialization and starts communication with the main device 210 (S401).

The PSI sensor 230 performing the initialization step transmits its block information and information on a sensing method to the master device 210. The transmission of this information is based on the Pelsi method and is based on the address set to the self. The main device 210 performs a registration process for the assigned guard block and the corresponding PSI sensor 230 based on the block information received from the PSI sensor 230 and the information on the sensing method (S403).

After performing step S403, the sensor unit 231 monitors whether there is a detection according to its sensing method, and the sensor control unit 237 of the PSI sensor 230 is predetermined from the sensor unit 231. It is determined whether the detection signal is transmitted (S405).

When the detection signal is transmitted from the sensor unit 231, the sensor controller 237 generates predetermined abnormal state information, and transmits the generated abnormal state information to the main device 210 through the second PSI communication unit 233. . In this case, the transmission of the information may not only be based on the corresponding address but also may be transmitted together with the block information (S407).

The PSI sensor 230 transmits the abnormal state information after the abnormal state is generated, or if the abnormal state information is not transmitted because the abnormal state does not occur, continues to perform step S405.

When the PSI sensor 230 transmits its abnormal state information to the main device 210 by the above method, the information is processed by the main device 210 according to a predetermined security algorithm.

The invention can be implemented in methods, devices and systems. In addition, when the present invention is implemented in computer software, the components of the present invention may be replaced with code segments necessary for performing necessary operations. The program or code segment may be stored in a medium that can be processed by a microprocessor and transmitted as computer data coupled with carrier waves via a transmission medium or communication network.

The media that can be processed by the microprocessor include electronic circuits, semiconductor memory devices, ROMs, flash memory, electrically erasable programmable read-only memory (EEPROM), floppy disks, optical disks, and hard disks. (Hard) Includes the ability to transmit and store information such as disks, fiber optics, wireless networks, and the like. Computer data also includes data that can be transmitted over electrical network channels, optical fibers, electromagnetic fields, wireless networks, and the like.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the above-described specific embodiment, the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

As described in detail above, the main device and the at least one sensor are connected by a power line communication method. Accordingly, it is not necessary to install a separate preference line can reduce the number of lines installed during construction.

The plurality of sensors connected to the main unit forms one sensor network based on the power line, and may transmit various sensor information to the main unit as well as normal abnormal state information. In addition, the assertion value may transmit a separate control command to each sensor by power line communication. By using this method, it is possible to minimize sensor misunderstanding according to various installation environment and provide high quality security service.

Each sensor can send information about the guard block so that the host can register the sensor. In this way, the administrator may skip the process of registering the information on the sensor directly to the host device. The registration method of such a sensor is more effective in the case of replacing the sensor due to a failure of the sensor, or in the case of newly establishing a security block.

Claims (7)

At least one power line communication (PLC) sensor that monitors a predetermined security target area and outputs abnormal state information; And And a first PSI communication unit configured to receive the abnormal state information by performing communication with the at least one PSI sensor according to a power line communication method through a power line for supplying operating power to the at least one PSI sensor. And a main device for transmitting the received abnormal state information to a control system through a separate network. Each of the PI sensor, A second PSI communication unit communicating with the first PSI communication unit through the power line; A sensor unit for monitoring a part of the security target area by a predetermined sensing method; And And a sensor control unit which transmits the abnormal state information which is a monitoring result of the sensor unit to the second PSI communication unit, and controls the second PSI communication unit to transmit to the main device. The sensor controller controls to transmit previously stored information on its sensing method to the host device through the second PSI communication unit. The claim value, when transmitting the abnormal state information to the control system, security system, characterized in that for transmitting the information on the sensing method of the PSI sensor received. When subdividing a predetermined security target area into at least one guard block, each of the at least one PSI sensor installed to monitor one of the at least one guard block; And The at least one PSI sensor communicates with the at least one PSI sensor according to a power line communication method through a power line for supplying operation power to the at least one state information on the guarded area and the PSI sensor It includes; a main device for transmitting the abnormal state information for the guard block to the control system through a separate network, including a first PSI communication unit for receiving at least one of the information on the guard block installed; The Pelsi sensor, A second PSI communication unit communicating with the first PSI communication unit through the power line; A sensor unit for monitoring one of the guard blocks by a predetermined sensing method; A setting unit for receiving information on the guard block monitored by the sensor from an administrator; A sensor control unit which transmits the abnormal state information, which is a monitoring result of the sensor unit, and information on the guard block set by the setting unit, to the second PSI communication unit, and controls the second PSI communication unit to transmit to the main device; Security system comprising a. The method of claim 2, The PSI sensor, the security system, characterized in that for transmitting the information about the guard block to the main device when the power input for the first time to initialize the main device. The method of claim 2, The sensor controller controls to transmit previously stored information on its sensing method to the host device through the second PSI communication unit. The claim value, when transmitting the abnormal state information to the control system, security system, characterized in that for transmitting the information on the sensing method of the PSI sensor received. The method according to claim 1 or 2, At least one general sensor for monitoring one of the guard blocks; And And a communication module for transmitting an abnormal signal received from the at least one general sensor through a contact method to the first communication unit via the power line in the power line communication method. When subdividing a predetermined security target area into at least one security block, performing the registration process of the information on the subdivided security block, and transmits the abnormal state information of the security target area to the control system based on the registered information. In the sensor is connected to the main device to transmit the abnormal state information to the main device, A PI communication unit communicating with the main device through a power line communication method through a power line supplied with operating power from the main device; A sensor unit for monitoring one of the guard blocks by a predetermined sensing method; A setting unit for receiving information on the guard block monitored by the sensor from an administrator; And And a sensor control unit which transmits the abnormal state information, the monitoring result of the sensor unit, and the information on the guard block set by the setting unit, to the PSI communication unit and controls the PSI communication unit to transmit to the main device. And a registration process of the host device and transmission of abnormal state information. In the sensor information registration method of the security system for subdividing a predetermined security target area into at least one guard block, and receiving the information of the sensor installed in the at least one guard block to provide a predetermined guard service, Initiating communication in a power line communication manner with the at least one PSI sensor via the power line, by a main apparatus supplying operating power to the at least one PSI sensor through a power line; After the communication is started, receiving, by the master device, information about its own block information and a sensing method transmitted by the at least one PSI sensor; And And storing and registering, by the main apparatus, block information and information on a sensing method of the received at least one PSI sensor.

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