KR20030068223A - Home security system by using power line communication - Google Patents

Abstract

PURPOSE: A guard and security system using a low-power communication method is provided to perform a guard function and generate an emergency signal by using a power line communication method. CONSTITUTION: A guard and security system using a low-power communication method includes a power line modem IC(507), a PLC(Power Line Communication) coupling portion(503), a micro computer(509), and a human body operation sensor portion(515). The PLC coupling portion connects a power terminal of a power line communication transformer to a power line signal driver terminal. The power line modem IC is used for transmitting an alarm setup command or an alarm release command to the micro computer. The micro computer is used for performing a mode change operation to an alarm setup mode or an alarm release mode according to an input command. The human body operation sensor portion transmits an emergency signal when the micro computer is in the state of the alarm setup mode.

Description

Security / disaster prevention system using power line communication method {Home security system by using power line communication}

The present invention relates to a security / disaster prevention system using a power line communication method, and more particularly, when a motion of an external intruder is detected using a power line communication method, a fire occurs, or a window or front door opens unexpectedly. Sends a message to the power line to transmit to the crime prevention / disaster prevention device compatible with the power line communication protocol to perform the crime prevention / disaster prevention function, and built-in alarm generator if necessary, alarm sound that can limit the intruder action on its own Or it relates to a security / disaster prevention system using a power line communication method that generates a flashlight, and notifies the user to the ARS via a separate connected phone that the outside user is intruder or fire occurs.

In general, a security / disaster prevention system is physically connected using a separate wiring between each sensor and the host that receives the input of the sensor and the whole system is operated. That is, when a thermal sensor or smoke sensor for fire detection is connected to the host, or when a motion detection sensor is to be connected, each sensor is connected to the host and the host receives a signal and fires. Alarm or intrusion alarm will be triggered. At this time, the host notifies that the disaster has occurred to the outside using an external connection network connected to the host.

In addition, the intrusion occurrence alarm through the motion detection sensor generates an alarm for the input of the motion detection sensor or ignores the sensor input signal depending on whether the user has set the security function.

Such a conventional security / disaster prevention system should be wired using a separate dedicated line between the host and each sensor. Therefore, when the position between the sensor and the host is far from each other, the burden on the wiring is generated, which is a limitation in installing the position of the sensor and the host freely.

In addition, each of the security / disaster prevention sensors have to receive a rectified power to DC from the host, there is a problem that a separate power wiring must be performed.

In addition, each of the security / disaster prevention sensors are dependent on the host because it only transmits the sensing signal to the host, and does not generate any alarm sound or flashing alarm signal.

In other words, such a conventional security / disaster prevention system should have a wired wiring between the two devices if the installation location between the security / disaster prevention device and the detection sensor is physically separated from each other, and the motion detection sensor itself generates an alarm sound or other. There is a problem in that flashing is not possible, but a complicated wiring operation must be performed by transmitting a signal by wire only whether the sensor is detected.

An object of the present invention for solving the problems of the prior art as described above is to transmit a message to the power line when the unexpected operation is detected, intrusion or fire occurs using the power line communication method and the power line communication protocol and It performs security function by delivering to compatible crime prevention / disaster prevention device, and generates alarm sound or flashing light that can restrict action to intruder by itself by incorporating alarm generator if necessary. It is to provide a security / disaster prevention system using a power line communication method that notifies the ARS of a fact that a fire or a fire has occurred through a separately connected telephone.

1A and 1B are waveform diagrams showing data bits in a data communication method using zero cross points of a general power line,

Figure 2a is a data structure diagram showing the starting point of the conventional X-10 based protocol,

FIG. 2B is a waveform diagram showing a waveform of the data structure shown in FIG. 2A;

3 is an overall schematic diagram of a two-way power line communication home automation (HA) system to which a motion detection system according to an embodiment of the present invention is applied;

4 is an overall configuration diagram of a security / disaster prevention system using a power line communication method according to an embodiment of the present invention,

FIG. 5 is a block diagram illustrating a human body motion detection sensor in a security / disaster prevention system using a power line communication method according to an embodiment of the present invention.

6 is a block diagram illustrating a fire sensor in a security / disaster prevention system using a power line communication method according to an embodiment of the present invention;

FIG. 7 is a block diagram illustrating an intrusion detecting sensor in a security / disaster prevention system using a power line communication method according to an embodiment of the present invention.

FIG. 8 is a block diagram of a power line modem installed in the PC when a security device is configured using a PC among security / disaster prevention systems using the power line communication method according to an embodiment of the present invention.

9 is a block diagram illustrating a security / disaster prevention device that performs a host role in a security / disaster prevention system using a power line communication method according to an embodiment of the present invention.

FIG. 10 is a diagram illustrating how a power line communication protocol is applied to a security / disaster prevention system using a power line communication method according to an embodiment of the present invention.

※ Explanation of code about main part of drawing ※

300: power line remote control telephone device 301: power line switch

302: power line outlet 303: power line gas intermediate valve

304: power line gas main valve 305: power line learning remote control

306: Power Line Security / Disaster Prevention System

401, 1005: human body motion detection sensor

403: fire detection sensor 405: intrusion detection sensor

407: power line modem (PC) 409, 1001: security / disaster prevention equipment

501, 601, 701, 801, 901: power supply

503, 603, 703, 803, 903: power line communication coupling unit

505, 605, 705, 805, 905: zero cross detector

507, 607, 707, 807, 907: Power Line Modem IC

509, 609, 709, 909: Micom

511, 611, 711, 911: remote control receiver

513, 613, 713, 913: alarm display unit

515: human body motion detection sensor unit 615: heat detection or smoke detection sensor unit

715: intrusion detection contact sensor unit 815: PC or server communication unit

915: external network connection unit 917: key input unit

919: status display unit 921: emergency power unit

1003: other power line equipment such as switches or outlets

1007: remote control

In order to achieve the above object, according to the present invention, a power line modem IC, a power line communication coupling unit operating as a PLC (Power Line Communication) driver, a microcomputer, an external network connection unit and an alarm display unit, the power line communication couple The ring unit transmits and transmits a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal; The power line modem IC, when an alarm setting or alarm cancel command is broadcast on the power line, delivers it to the micom; The microcomputer generates an alarm through the alarm display unit when an intrusion occurs or an alarm condition occurs, performs an operation corresponding to the input command, and then broadcasts it on a power line; The external network connection unit transmits an intrusion occurrence or alarm occurrence situation to an external user when an intrusion occurrence or alarm occurs by using a telephone and other internet networks, and enables the external user to remotely control using the network. Provides a security / disaster prevention device using a power line communication method.

The power line communication coupling unit may include a power line communication coupling unit, a microcomputer, and a motion detection sensor unit operating as a power line modem IC, a power line communication (PLC) driver. Connect and perform transmission and reception; The power line modem IC, when an alarm setting or alarm cancel command is broadcast on the power line, delivers it to the micom; The microcomputer performs mode conversion to an alarm setting state or an alarm releasing state corresponding to an input command and simultaneously broadcasts a conversion result on a power line; When the micom is in the alarm setting state mode, the human body motion detection sensor unit transmits an alarm signal to the power line as the human body detection signal is generated. When the micom is in the release setting state mode, the human body motion detection sensor unit detects the human body detection signal. It provides a human body motion detection sensor using a power line communication method characterized in that the alarm signal is not sent on the power line even if it is generated.

In addition, a power line modem IC, a power line communication coupling unit that operates as a PLC (Power Line Communication (PLC) driver), a microcomputer and a heat detection or smoke detection sensor unit, wherein the power line communication coupling unit is a power line communication transformer is a power terminal and power line signal Connects a driver stage to perform transmission and reception; The microcomputer transmits the fact that a fire occurs by the heat detection or smoke detection sensor to the power line modem IC, and broadcasts its operating state on the power line via the power line modem IC; The power line modem IC provides a fire detection sensor, when an occurrence of a fire is input, an alarm signal is transmitted on the power line.

The power line communication coupling unit may include a power line communication coupling unit, a microcomputer, and an intrusion detection contact sensor that operate as a power line modem IC, a power line communication (PLC) driver, and the power line communication coupling unit may include a power supply terminal and a power line signal driver terminal. Connect and perform transmission and reception; The microcomputer receives the contact opening / closing state by the intrusion detecting contact sensor, processes it into communication data, transmits it to the power line modem IC, and broadcasts its operating state on the power line via the power line modem IC; The power line modem IC transmits a contact opening / closing state data of a window or front door on a power line; The intrusion detection contact sensor is disposed in a plurality of windows or front doors to provide an intrusion detection sensor, characterized in that the transmission to the micom each time the contact opening and closing state of the window or front door provides.

In addition, a power line modem IC, a power line communication coupling unit that operates as a PLC (Power Line Communication (PLC) driver) and a PC or server communication unit, the power line communication coupling unit is a power line communication transformer is connected to the power line and power line signal driver stage To perform transmission and reception; The power line modem IC analyzes a signal input from the power line communication coupling unit and transmits the data content to a data communication device serving as a PC or server through the PC or server communication unit, and transmits data through the PC or server communication unit. If is input, and analyzes the modulated into a power line signal, and provides a power line modem using a power line communication method characterized in that the broadcasting on the power line through the power line communication coupling unit.

On the other hand, the outline of the data communication method at the zero cross point, which is widely used among the power line communication method used in the present invention is as follows.

In general, data communication at a zero cross point on a power line is performed in units of one cycle of power frequency for each data bit, and indicates data bits according to positions of carrier signals per half cycle. That is, according to the conventional X-10 based communication method, a signal is generated while generating a 120KHz power line signal for 1 ms at a zero cross point of the power line's power level, and power line communication is performed by combining these data.

1A and 1B are waveform diagrams showing data bits in a data communication method using zero cross points of a general power line.

As shown in FIGS. 1A and 1B, when a carrier signal is present as 'ON' and when there is no 'OFF', the data bit '1' is displayed as a carrier signal 'OFF' in the carrier signal 'ON'. The data bit '0' is indicated by the carrier signal 'on' from the carrier signal 'off'.

Data communication using a zero cross point of a power line is based on this definition, in which control devices transmit and receive data to and from each other using the power line.

For the data communication method using the existing zero cross point, the present inventors have already applied for and registered the 'remote control apparatus using bidirectional power line communication and its control method' (Publication No. 10-2000-002198) and the Priority Data Communication Method Using Zero Cross Point '(Publication Number: 10-1999-053820). In addition, the present invention utilizes the contents described in the patent application 'data packet recording medium, operation method and bidirectional communication method applied to the power line communication method' which is further improved (Application No. 10-2001-076335).

In addition, by performing power line communication, a problem caused by a signal passing next door in a densely populated area such as an apartment or a villa is a power line communication device having a plug and play function (patent application No. 10-2001). -011864) to prevent interference and collisions.

The X-10 based communication method is as follows.

FIG. 2A is a data structure diagram illustrating a starting point of a conventional X-10 based protocol, and FIG. 2B is a waveform diagram illustrating the data structure illustrated in FIG. 2A as a waveform.

First, as shown in FIG. 2A, the X-10-based protocol start point includes two cycles of 'Start Code', four cycles of 'House Code', and five cycles of 'Number Code' or 'Function Code'. Send the signal twice in succession. At this time, 'Start Code' exists only 1110, and one data is transmitted in 1/2 cycle, and other codes are data of 1 and 0 if data is L1 because one cycle means 1 bit of data. Is extended and transmitted, and if L0, it is extended to 0 and 1 and sent. This is illustrated in Figure 2b.

Meanwhile, L1 and L0 are defined as follows.

If the carrier frequency is present at the zero cross point, it is defined as '1'. If it is not present, it is defined as '0', and 'logical 1 (L1)' is defined as '1' where the carrier frequency is present at the zero cross point and then is not present. 0 is a combination, and 'logical 0 (L0)' means a carrier frequency does not exist at a zero cross point and a carrier frequency exists at a next zero cross point, that is, a combination of 0 and 1.

Therefore, according to FIG. 2B, 'Start Code' is '1110', 'House Code' is 'L0, L0, L0, L1', and 'Number / Function Code' is 'L0, L0, L0, L1, L1'. do.

Meanwhile, the present invention may be implemented using a general power line communication method, or may be implemented using a power line communication method using the zero cross point as described above.

Hereinafter, the motion detection system using the power line communication method according to an embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

3 is an overall schematic diagram of a two-way power line communication home automation (HA) system applying a motion detection system using a power line communication method according to an embodiment of the present invention.

The power line remote control telephone apparatus 300 includes a power line switch 301, a power line outlet 302, a power line gas intermediate valve 303, a power line gas main valve 304, and a power line learning remote controller 305, which are control devices on the power line. The power line remote control telephone apparatus 300 is connected to a power line remote control telephone apparatus 300 by using a power line. A security / disaster prevention system 306 is connected, and the power line remote control telephone apparatus 300 is connected to a separate PSTN network and is connected to a user. It is possible to remotely control the control target devices 301, 302, 303, 304, 305, 306 through a telephone network from the outside.

As shown in FIG. 3, the power line remote control telephone apparatus 300 integrates the power line remote control devices in the home, informs the status of the power line remote control devices outside the home through a telephone line connected to the outside, and gives a command to the user. It delivers the power back to the power line remote control devices. At the same time, a separate security / disaster prevention system 306 is connected to the power line remote control telephone apparatus 300 by a power line, and after the user sets the security / disaster prevention function when the user goes out, an intruder is detected or a fire occurs as a result of sensing. When the alarm is detected, the phone number is sequentially dialed to the pre-stored phone number to inform the ARS that there is an intruder in the home or a fire has occurred.

Meanwhile, the power line remote control telephone apparatus 300 serves as a security device host in the security / disaster prevention system, but does not exclude that a host or a PC separately installed perform such a function.

In addition, although the power line gas main valve 304 is illustrated to be connected to the power line gas intermediate valve 303 in FIG. 3, the power line gas main valve 304 may be connected to a common power line to perform a function.

Meanwhile, the security / disaster prevention system proposed in the present invention is largely divided into a human body motion detection sensor, a fire detection sensor, an intrusion detection sensor, and a security / disaster prevention device serving as a host, and the security / disaster prevention device is a general server such as a PC. Can be responsible for the function, I will explain the description.

4 is an overall configuration of a crime prevention / disaster prevention system using a power line communication method according to an embodiment of the present invention.

As shown in Figure 4, the crime prevention / disaster prevention system according to an embodiment of the present invention is installed in the living room, room, etc. by detecting the human body motion sensor 101, the smoke, heat in the home, to detect the motion of the human body, Fire detection sensor 103 for determining whether a fire occurs, installed in the window or / and the front door detects whether the contact of the window or / and the front door opening, intrusion detection sensor 105 to determine whether the intruder is present. A PC 107 or a security / disaster prevention device 109 having a power line modem for performing a host function by receiving a sensing signal from the various sensors 101, 103, 105 and performing a host function. It is provided.

Here, the PC 107 and the security / disaster prevention device 109 is installed, the power line modem performs the same function, only one may be installed.

In addition, the human body motion detection sensor 101, the fire detection sensor 103 and the intrusion detection sensor 105 may be provided only a portion as needed.

FIG. 5 is a block diagram illustrating a human body motion detection sensor 101 of a security / disaster prevention system using a power line communication method according to an embodiment of the present invention, wherein the human body motion detection sensor includes a power supply unit 501 and a power line communication (PLC). : Power line communication coupling) A power line communication coupling unit 503 and a zero cross detection unit 505, a power line modem IC 507, a microcomputer 509, a remote control receiver 511, an alarm display unit 513, and human body motion detection The sensor unit 515 is provided.

The power supply unit 501 drops a voltage using a transformer or supplies a stable DC power to the entire apparatus through a smoothing circuit using a switching mode power supply (SMPS) method. The PLC driver portion is divided into a power line communication coupling unit 503 and a zero cross detection unit 505. The zero cross detection unit 505 detects a zero cross portion by detecting a voltage of a power line to detect the power line modem IC 507. The power line modem IC 507 performs power line communication using the signal synchronously. The power line communication coupling unit 503 transmits and receives a power line communication transformer by connecting a power source of 220V and a power line signal driver.

The power line modem IC 507 transmits the signal broadcast on the power line to the microcomputer 509. When the microcomputer 509 transmits data to be loaded on the power line to the power line modem IC 507, The power line modem IC 507 broadcasts its data on the power line.

When the remote controller receiving unit 511 issues an alarm setting or release setting command using a remote controller, the remote controller receiving unit 511 receives the alarm setting command and inputs it to the microcomputer 509. In this case, after the alarm setting command is input, the microcomputer 509 transmits an alarm signal to the power line when the human body detection signal is generated by the human body motion detection sensor unit 515, and the release setting command is input. If the human body motion detection sensor 515 generates a human body detection signal, the human body motion detection sensor unit 515 does not transmit an alarm signal on the power line.

The reason for this is that when the user does not have an alarm setting and the user is daily living in the home where the security / disaster prevention system is installed, if the user continuously detects the user's movement and sends a signal to the power line, it occupies too much traffic. This is because it can interfere with the communication of other power line devices.

In addition, the human body motion detection sensor may receive an alarm setting or release setting message through a power line. In this case, the operation is the same as that of the command input by the remote controller.

In addition, the human body motion detecting sensor broadcasts an alarm signal through a power line when a human body motion is detected after the alarm setting is set, but displays an operation such as an alarm sound or a flash by providing a separate alarm display unit 513 as necessary. Can be performed.

In addition, the human body motion detection sensor performs a corresponding operation according to a command signal input through the power line and broadcasts its operation result state on the power line, so that other power line devices know the current state of the human body motion detection sensor. To help.

In addition, although not shown in FIG. 5, a button input unit for manually inputting an alarm setting or release setting command may be provided separately.

FIG. 6 is a block diagram illustrating a fire detection sensor in a security / disaster prevention system using a power line communication method according to an embodiment of the present invention. The fire detection sensor may include a power supply unit 601 and a power line communication (PLC) driver. Power line communication coupling unit 603 and zero cross detection unit 605, power line modem IC 607, micom 609, remote control receiver 611, alarm display unit 613 and heat or smoke detection sensor 615 operating as ).

The power supply unit 601 drops a voltage using a transformer or supplies a stable DC power to the entire apparatus through a smoothing circuit using a switching mode power supply (SMPS) method. The PLC driver portion is divided into a power line communication coupling unit 603 and a zero cross detection unit 605. The zero cross detection unit 605 detects a zero cross portion by detecting a voltage of a power line to detect the power line modem IC 607. The power line modem IC 607 performs power line communication using the signal in synchronization. The power line communication coupling unit 603 transmits and receives a power line communication transformer by connecting a power source of 220V and a power line signal driver.

The power line modem IC 607 transmits the signal broadcast on the power line to the microcomputer 609, and when the microcomputer 609 transmits data to be loaded on the power line to the power line modem IC 607, The power line modem IC 607 broadcasts its data on the power line.

The remote control receiver 611 may set elements to be set in using the power line communication protocol by using the remote controller.

In addition, when heat or smoke is detected, the fire detection sensor 615 broadcasts an alarm signal through a power line, but if necessary, a separate alarm display unit 613 may be performed to perform a display action such as an alarm sound or a flashing light. Can be.

In addition, the fire detection sensor broadcasts its operation result state on the power line, so that other power line devices can know the current state of the fire detection sensor.

On the other hand, such a fire detection sensor is different from the human motion detection sensor is that if the heat or smoke is always detected regardless of whether the alarm is set, the signal is broadcast to the power line.

FIG. 7 is a block diagram illustrating an intrusion detection sensor in a security / disaster prevention system using a power line communication method according to an embodiment of the present invention. The intrusion detection sensor may include a power supply unit 701 and a power line communication (PLC) driver. Power line communication coupling unit 703 and zero cross detection unit 705, power line modem IC 707, micom 709, remote control receiver 711, alarm display unit 713, and intrusion detection contact sensor 715 Equipped.

The power supply unit 701 supplies a stable DC power to the entire device through a smoothing circuit using a transformer or a voltage drop using a transformer (SMPS). The PLC driver portion is divided into a power line communication coupling unit 703 and a zero cross detection unit 705. The zero cross detection unit 705 detects a zero cross portion by detecting a voltage of a power line to detect the power line modem IC 707. The power line modem IC 707 performs power line communication using the signal in synchronization. The power line communication coupling unit 703 transmits and receives a power line communication transformer by connecting a power supply terminal of 220V and a power line signal driver.

The power line modem IC 707 transmits a signal broadcast on a power line to the microcomputer 709. When the microcomputer 709 transmits data to be loaded on a power line, the power line modem IC 707 transmits the data. The power line modem IC 707 broadcasts its data on the power line.

The remote control receiver 711 may set elements to be set in using the power line communication protocol by using the remote controller. In addition, the alarm can be set through the remote control.

In addition, the intrusion detection contact sensor 715 is installed in the window or the front door, and whenever the state of opening and closing of the contact is transmitted whether or not to the microcomputer 709, the microcomputer 709 communicates it And transmit it to the power line modem IC 707, which broadcasts it on the power line. In addition, if necessary, a separate alarm display unit 713 may be provided to perform a display operation such as an alarm sound or a flashing light.

In addition, the intrusion detection sensor broadcasts its operation result state on the power line through the microcomputer 709 and the power line modem IC 707 so that other power line devices can know the current state of the fire detection sensor. .

On the other hand, the intrusion detection sensor is different from the human body motion detection sensor is that regardless of whether the alarm is set or not always broadcast the open and closed state of the contact point to the power line.

FIG. 8 is a block diagram illustrating a power line modem installed in the PC when a security device is configured using a PC among security / disaster prevention systems using the power line communication method according to an embodiment of the present invention. The power supply unit 801, a power line communication coupling unit 803 that operates as a PLC (Power Line Communication) driver, a zero cross detection unit 805, a power line modem IC 807, and a PC or server communication unit 815 are provided. .

The power supply unit 801 drops a voltage using a transformer or supplies a stable DC power to the entire apparatus through a smoothing circuit using an SMPS power circuit.

The PLC driver portion is divided into a power line communication coupling unit 803 and a zero cross detection unit 805. The zero cross detection unit 805 detects a voltage of a power line to detect a zero cross portion to detect the power line modem IC 807. The power line modem IC 807 performs power line communication using the signal in synchronization. The power line communication coupling unit 803 transmits and receives a power line communication transformer by connecting a power terminal of 220V and a power line signal driver.

The power line modem IC 807 transmits the signal broadcast on the power line to the PC or server communication unit 815, and the PC or server performs the function of the microcomputer shown in FIGS.

In addition, when the PC or server communication unit 815 transmits data to be loaded on a power line to the power line modem IC 807, the power line modem IC 807 analyzes the data and modulates the data into a power line signal, and then the power line. Broadcast on the power line via the communication coupling unit 803. That is, the power line modem simply serves to connect the power line signal between the power line and the PC (or server), and the security / disaster prevention function is performed by a higher application program installed in the server or the PC.

FIG. 9 is a block diagram illustrating a security / disaster prevention device that performs a host role in a security / disaster prevention system using a power line communication method according to an embodiment of the present invention. The security / disaster prevention device includes a power supply unit 901 and an emergency power supply unit ( 921, a power line communication coupling unit 903, a zero cross detection unit 905, a power line modem IC 907, a microcomputer 909, a remote control receiver 911, and an alarm operating as a PLC (Power Line Communication) driver. A display unit 913, an external network connection unit 915, a key input unit 917, and a status display unit 919 are provided.

The power supply unit 901 causes a voltage drop using a transformer or supplies a stable DC power to the entire apparatus through a smoothing circuit using an SMPS method. In addition, by separately installing the emergency power unit 921 to maintain the operation of the power line security / disaster prevention equipment for a period of time even during a power failure.

The PLC driver portion is divided into a power line communication coupling unit 903 and a zero cross detection unit 905. The zero cross detection unit 905 detects a zero cross portion by detecting a voltage of a power line to detect the power line modem IC 907. The power line modem IC 907 performs power line communication using the signal in synchronization. The power line communication coupling unit 903 transmits and receives a power line communication transformer by connecting a power supply terminal of 220V and a power line signal driver.

The power line modem IC 907 transmits the signal broadcast on the power line to the microcomputer 909. When the microcomputer 909 transmits the data to be loaded on the power line to the power line modem IC 907, The power line modem IC 907 broadcasts its data on the power line.

The microcomputer 909 is connected to the remote control receiver 911 and the key input unit 917 which can be used by the user. When an intrusion or an alarm situation occurs, the microcomputer 909 notifies an alarm occurrence through the alarm display unit 913. Through the status display unit 919, an interactive interface condition is configured so that the user can use the apparatus.

The external network connection unit 915 transmits an alarm occurrence situation when an alarm occurs using a telephone and other Internet networks, and enables a remote control by allowing a user to remotely access the device using the network.

In addition, the crime prevention / disaster prevention device performs a corresponding operation according to the command signal input through the power line and at the same time broadcasts the status of its operation on the power line, so that other power line devices to determine the current state of the security / disaster prevention device Make sure you know.

On the other hand, the crime prevention / disaster prevention device and the power line modem that serves as a host checks whether a problem occurs in the surrounding power line sensors in a polling manner from time to time while the security function is set. In addition, when a plurality of host devices are configured in one home, only one host device serves as a main through a separate setting operation, and the peripheral sensors are frequently checked in a polling manner, and the remaining sub devices are Only monitor function. On the other hand, when operating regardless of the security function setting, such as a disaster prevention function such as a fire, the priority relationship between the main device and the sub device is equally applied. In addition, in case of an emergency of crime prevention / disaster prevention, the main host device and the sub host device make a predetermined contact through an external network connected to each other, and the alarm action according to the setting can be independently operated through each alarm generating unit. do.

FIG. 10 is a diagram illustrating how a power line communication protocol is applied to a security / disaster prevention system using a power line communication method according to an embodiment of the present invention. For example.

First, a method of performing an alarm setting or an alarm releasing process by the human body motion detection sensor 1005 through the security / disaster prevention device 1001 will be described. When the user goes out or goes on a journey, when the alarm is set by the human body motion detection sensor 1005 using the security / disaster prevention device 1001, the human body motion detection sensor 1005 detects the human body motion from then on. The signal is broadcast on the power line. The devices used in the setting receiving the signal generate an alarm signal when the human body motion is detected by connecting to the user or the crime prevention / disaster prevention agency by using their external network. In addition, when the user returns to the home where the device is installed, the release setting may be performed through the device used for the setting.

Secondly, a process of setting an alarm or releasing an alarm to the human body motion detection sensor 1005 through power line communication devices that receive other remote control inputs using the remote controller 1007 will be described. When an alarm setting or alarm release command is issued to the power line switch or other power line device 1003 to the remote controller 1007, the power line switch or other power line devices 1003 are assigned an address value assigned to the human body motion detection sensor 1005. And broadcast the command data on a power line. After receiving the broadcasted command data, the human body motion detection sensor 1005 performs an operation corresponding to the command, and then broadcasts the state of the result of the operation again, so that other power line devices receive the human body motion detection sensor 1005. To know the current state of the. In addition, when the human body motion is detected in the alarm setting state, the human body motion detection sensor 1005 broadcasts the alarm signal to the power line, and does not transmit the alarm signal to the power line even when the human body motion is detected in the alarm release state. . The reason is to reduce the amount of power line communication traffic as described above. Meanwhile, when an alarm is set or released by the human body motion detection sensor 1005 to the power line communication devices that receive other remote control inputs using the remote control, an external power line communication security device or other similar function may be performed on the power line. When there is a device connected to the network, the device enters an alarm setting according to the signal. When an alarm signal is generated from the human body motion detection sensor 1005, the alarm signal is transmitted through an external network connected to each other.

Third, a case in which the command signal is directly transmitted to the human body motion detection sensor 1005 through the remote controller 1007 is as follows. When the human body motion detection sensor 1005 transmits an alarm setting or alarm release command to the human body motion detection sensor 1005 using the remote controller 1007, the human body motion detection sensor 1005 performs an alarm setting or an alarm release setting by itself. Broadcast to the powerline. When the security / disaster prevention device 1001 connected to the power line is in an alarm setting state, the alarm / disaster prevention device 1001 operates in an alarm setting mode without a separate operation, and when an alarm signal, which is a human motion detection signal, is transmitted to the power line, it is connected to each other together with an alarm. The external network is notified of the intrusion through the external network, and in the case of the deactivation state, the alarm setting devices connected to the external network are also released at the same time.

Each sensor is configured with a security function through an external input device such as a remote controller, and other power line devices (not host devices) may send a security function setting signal through the power line. At this time, each sensor transmits data to the power line that its security function is set, and if there is a response from the host device, it operates dependent on the host device, and if there is no response from the host device for a predetermined time, it operates as an independent device. You can do that. When operating as an independent device, the alarm is triggered through the alarm generator of the sensor.

In addition, when a security setting command is received from the host through the power line, the slave device operates dependently. When performing dependent operation, alarm is not generated through the alarm generator until the alarm generation command is received from the host. The reason for this is to support the host device's ability to report directly to a public office, such as the user or the police, over the telephone or the Internet without the intruder knowing, depending on the options set by the user. The appliance also does not generate an alarm through the alarm generator.

When setting the security function, the host device checks the sensors registered to itself at the initial setting by polling method. When the status of door open of sensors that detect door open, such as intrusion detection sensors, is entered, security is not set, and the user is not ready for the security function setting so that the user can check the security status in the home. do.

When the security function is set, the signal input from the human body motion detection sensor may be set to be recognized as an intrusion signal after a predetermined time according to a user setting. This is to prevent the alarm from happening when you go out after setting the security function.

As described above, the security / disaster prevention system proposed by the present invention mainly based on the human body motion detection sensor, and the fire detection sensor or the intrusion detection sensor perform operations similarly to those described above. However, in the case of the fire detection sensor or intrusion detection sensor, the sensed values are always broadcast on the power line regardless of the alarm function setting. In other words, the security / disaster prevention device generates an alarm regardless of the alarm function setting, and notifies the occurrence of a fire to the outside, and generates an alarm only when the alarm is set for the intrusion signal and there is an intruder outside. It performs the function of informing.

Meanwhile, the present invention has been described as being applied to a power line communication method using a zero cross point, but may be applied to other power line communication methods. However, in such a case, a zero cross detection circuit operating as a PLC driver is replaced by a corresponding power line communication data receiving unit, which can be modified by anyone skilled in the art.

In addition, as described above, the security / disaster prevention device broadcasts its own state to a power line and simultaneously asks a plurality of sensors for the state, and responds to the command of each sensor, thereby preventing the current state from being disclosed. You can tell the disaster prevention device.

In addition, if there is no response to the status check from the plurality of sensors registered at the initial setting, the security / disaster prevention device may recognize as a failure or an alarm signal and inform the user through the alarm generator.

In addition, although the plurality of sensors have been described as having a separate power supply unit or emergency power supply unit, by adding a battery, it is possible to switch to asynchronous communication mode using a power line in case of power failure to communicate. In this case, the security / disaster prevention device may be designed to notify the user of the power failure through an external connection network such as a telephone during a power failure.

In addition, the plurality of sensors and crime prevention / disaster prevention equipment is operated by the emergency power using the battery in the case of power failure, the security function setting state or release state before the operation is completely stopped because the power is not turned on until all the emergency power is consumed It is better to design the memory to be automatically set to the state just before the operation is completely stopped even if the power is turned on again and the initial operation is performed later.

While the invention has been described above based on the preferred embodiments thereof, these embodiments are intended to illustrate rather than limit the invention. It will be apparent to those skilled in the art that various changes, modifications, or adjustments to the above embodiments can be made without departing from the spirit of the invention. Therefore, the protection scope of the present invention will be limited by the appended claims, and should be construed as including all such changes, modifications or adjustments.

As described above, according to the present invention, an intruder and a fire may be recognized based on a communication line based on a power line wired throughout the house without a separate wiring, and an intrusion and a fire may be notified using an external network, and an alarm device may be used. It is effective to install the security / disaster prevention system anywhere in the home or freely without being bound by the location setting.

In addition, since the alarm setting or release command can be transmitted using various types of power line communication devices using the same power line protocol, convenience is maximized.

Claims (34)

A power line modem IC, a power line communication coupling unit, a microcomputer and a motion detection sensor unit operating as a PLC (Power Line Communication) driver, The power line communication coupling unit transmits and receives a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal; The power line modem IC, when an alarm setting or alarm cancel command is broadcast on the power line, delivers it to the micom; The microcomputer performs mode conversion to an alarm setting state or an alarm releasing state corresponding to an input command and simultaneously broadcasts a conversion result on a power line; When the micom is in the alarm setting state mode, the human body motion detection sensor unit transmits an alarm signal to the power line as the human body detection signal is generated. When the micom is in the release setting state mode, the human body motion detection sensor unit detects the human body detection signal. The human body motion detection sensor using the power line communication method, characterized in that the alarm signal is not sent on the power line even if it generates. The method of claim 1, A human body motion detection sensor using a power line communication method characterized in that it further comprises a power supply for dropping the voltage using a transformer and supplying a stable DC power through a smoothing circuit. The method of claim 2, A human body motion detection sensor using a power line communication method, characterized in that a separate emergency power unit to operate in an asynchronous communication mode using the power line in case of power failure. The method of claim 3, wherein When emergency power is discharged during operation by emergency power in case of power failure, it remembers the security function setting state or release state before discharge and automatically resets the power to the state before power off when power is turned on to perform initialization operation. Human body motion detection sensor using a power line communication method. The method of claim 1, And a zero cross detector configured to detect a voltage of a power line, detect a zero cross portion, and transmit a signal to the power line modem IC. The method of claim 1, A human body motion detection sensor using a power line communication method further comprises a remote control receiver for inputting an alarm setting or release setting command. The method of claim 1, The human body motion detection sensor using the power line communication method, characterized in that it further comprises an alarm display unit for performing an alarm action, such as an alarm sound or flash when the motion detection signal generated in the human motion detection sensor unit. The method of claim 1, When the query message for the state of the human body motion detection sensor is transmitted through a power line, the human body motion sensor using the power line communication method characterized in that for broadcasting the data in response to the command on the power line. The method of claim 8, The human body motion detection sensor using the power line communication method characterized in that the alarm when the human body is detected by operating independently, if there is no response of the host to the broadcast data for a certain period of time. A power line modem IC, a power line communication coupling unit operating as a PLC (Power Line Communication) driver, a microcomputer, an external network connection unit, and an alarm display unit, The power line communication coupling unit transmits and receives a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal. When the power line modem IC broadcasts an alarm setting or alarm release command on a power line, the power line modem IC delivers the signal to the microcomputer. The microcomputer generates an alarm through the alarm display unit when an intrusion occurs or an alarm condition occurs, performs an operation corresponding to the input command, and then broadcasts it on a power line; The external network connection unit transmits an intrusion occurrence or alarm occurrence situation to an external user when an intrusion occurrence or alarm occurs by using a telephone and other internet networks, and enables the external user to remotely control using the network. Security / disaster prevention equipment using power line communication method. The method of claim 10, Security / disaster prevention device using a power line communication method characterized in that it further comprises a power supply for supplying a stable DC power through a voltage drop and a smoothing circuit using a transformer. The method of claim 11, Further comprising an emergency power supply for supplying emergency power to maintain operation for a certain period of time, even in the event of power failure, Security / disaster prevention apparatus using the power line communication method, characterized in that the power supply communication can be informed to the external user through the external network in the event of power failure. The method of claim 10, When the security function is set, security / disaster prevention device using a power line communication method characterized in that for checking the power line sensors in a polling (Polling) method. The method of claim 10, And a zero cross detector for detecting a zero cross portion by detecting a voltage of a power line and transmitting a signal to the power line modem IC. The method of claim 10, Security / disaster prevention apparatus using a power line communication method further comprises a remote control receiver for inputting an alarm setting or release setting command. The method of claim 10, Power line communication characterized by broadcasting a command for status check on the power line from the plurality of registered sensors at the initial setting, and if there is no response, recognizes as a failure or alarm signal and alarms through the alarm display unit. Security / disaster prevention equipment using the method. The human body motion detection sensor according to any one of claims 1 to 9; And 17. A security / disaster prevention apparatus using a power line communication method, comprising the security / disaster prevention apparatus according to any one of claims 10 to 16. Fire detection sensor; And a security / disaster prevention device according to any one of claims 10 to 16, The fire detection sensor includes a power line modem IC, a power line communication coupling unit operating as a PLC (Power Line Communication) driver, a microcomputer and a heat detection or smoke detection sensor unit, The power line communication coupling unit transmits and receives a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal; The microcomputer transmits the fact that a fire occurs by the heat detection or smoke detection sensor to the power line modem IC, and broadcasts its operating state on the power line via the power line modem IC; The power line modem IC, when the fact that a fire occurs is input, the crime prevention / disaster prevention system using a power line communication method, characterized in that for transmitting an emergency (Emergency) signal on the power line. The method of claim 18, The fire detection sensor is a security / disaster prevention system using a power line communication method characterized in that it further comprises a power supply for supplying a stable DC power through a voltage drop using a transformer and a smoothing circuit. The method of claim 19, The fire detection sensor is a security / disaster prevention system using a power line communication method, characterized in that by providing a separate emergency power unit to operate in an asynchronous communication mode using the power line in the event of power failure. The method of claim 18, The fire detection sensor is a security / disaster prevention system using a power line communication method further comprises a zero cross detection unit for detecting the voltage of the power line to detect the zero cross portion and sends a signal to the power line modem IC. The method of claim 18, The fire detection sensor may further include an alarm display unit configured to perform an alarm action such as an alarm sound or a flash when a fire detection signal is generated from the heat detection or smoke detection sensor. system. The method of claim 18, The fire detection sensor broadcasts its setting state on the power line at the time of initialization, and if there is no response from the host to the broadcasted data for a certain period of time, the fire detection sensor operates independently and alerts the user when smoke / heat is detected. Security / disaster prevention system using a power line communication method characterized in that. Intrusion detection sensor; And a security / disaster prevention device according to any one of claims 10 to 16, The intrusion detection sensor includes a power line modem IC, a power line communication coupling unit operating as a PLC (Power Line Communication) driver, a micom and an intrusion detection contact sensor, The power line communication coupling unit transmits and receives a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal; The microcomputer receives the contact opening / closing state by the intrusion detecting contact sensor, processes it into communication data, transmits it to the power line modem IC, and broadcasts its operating state on the power line via the power line modem IC; The power line modem IC transmits a contact opening / closing state data of a window or front door on a power line; The intrusion detection contact sensor is disposed in a plurality of windows or front doors security / disaster prevention system using a power line communication method characterized in that the transmission of the state every time the contact opening and closing state of the windows or front doors to the micom. The method of claim 24, The intrusion detection sensor is a security / disaster prevention system using a power line communication method characterized in that it further comprises a power supply for supplying a stable DC power through a voltage drop using a transformer and a smoothing circuit. The method of claim 25, A human body motion detection sensor using a power line communication method, characterized in that a separate emergency power unit to operate in an asynchronous communication mode using the power line in case of power failure. The method of claim 24, And the intrusion detection sensor further comprises a zero cross detection unit detecting a voltage of a power line to detect a zero cross portion and transmitting a signal to the power line modem IC. The method of claim 24, The intrusion detection sensor, the security / disaster prevention system using a power line communication method further comprises an alarm display unit for performing an alarm action, such as an alarm sound or a flash when an intruder signal is generated from the intrusion detection contact sensor. The method of claim 24, The intrusion detection sensor is a security / disaster prevention system using a power line communication method, characterized in that when the state of the door open at the time of initialization, the security setting is not set, the user is not ready for the security function setting. The human body motion detection sensor according to any one of claims 1 to 9; And a powerline modem, The power line modem includes a power line modem IC, a power line communication coupling unit operating as a PLC (Power Line Communication) driver, and a PC or server communication unit, The power line communication coupling unit transmits and receives a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal; The power line modem IC analyzes a signal input from the power line communication coupling unit and transmits the data content to a data communication device serving as a PC or server through the PC or server communication unit, and transmits data through the PC or server communication unit. Is inputted, and then modulates the signal into a power line signal and broadcasts it on the power line through the power line communication coupling unit. The method of claim 30, The power line modem further comprises a power supply unit for supplying stable DC power through a voltage drop using a transformer and a smoothing circuit. The method of claim 30, The power line modem further comprises a zero cross detection unit for detecting a voltage of the power line to detect a zero cross portion and transmitting a signal to the power line modem IC. Fire detection sensor; And a powerline modem, The fire detection sensor includes a first power line modem IC, a first power line communication coupling part operating as a PLC (Power Line Communication) driver, a first micom and a heat sensing or smoke detection sensor part, and the first power line The communication coupling unit transmits and receives a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal; When the fact that a fire occurs is inputted by the heat detection or smoke detection sensor, the first micom sends it to the first power line modem IC, and broadcasts its operating state on the power line via the first power line modem IC. Casting; The first power line modem IC transmits an emergency signal on the power line when a fire occurrence is input. The power line modem includes a second power line modem IC, a second power line communication coupling unit operating as a PLC (Power Line Communication) driver, and a PC or server communication unit, and the second power line communication coupling unit is a power line communication transformer. Connects a power supply terminal and a power line signal driver terminal to perform transmission and reception; The second power line modem IC analyzes a signal input from the second power line communication coupling unit and transmits the data content to a data communication device serving as a PC or server through the PC or server communication unit, and transmits the data to the PC or server. When the data is input through the communication unit, it is analyzed and modulated into a power line signal, and then security / disaster prevention system using a power line communication method characterized in that broadcasting on the power line through the second power line communication coupling unit. Intrusion detection sensor; And a powerline modem, The intrusion detection sensor includes a first power line modem IC, a first power line communication coupling unit operating as a PLC (Power Line Communication) driver, a first micom, and an intrusion detection contact sensor, wherein the first power line communication couple The ring unit transmits and transmits a power line communication transformer by connecting a power supply terminal and a power line signal driver terminal; The first micom receives the contact opening / closing state by the intrusion detecting contact sensor, processes it into communication data, and transmits it to the first power line modem IC, and transmits its operating state to the power line modem via the first power line modem IC. Broadcast to; The first power line modem IC transmits a contact opening / closing state data of a window or front door on a power line; The intrusion detection contact sensor is disposed in a plurality of windows or front doors and transmits the state to the first micom whenever the contact opening / closing state of the windows or front doors changes, The power line modem includes a second power line modem IC, a second power line communication coupling unit operating as a PLC (Power Line Communication) driver, and a PC or server communication unit, and the second power line communication coupling unit is a power line communication transformer. Connects a power supply terminal and a power line signal driver terminal to perform transmission and reception; The second power line modem IC analyzes a signal input from the second power line communication coupling unit and transmits the data content to a data communication device serving as a PC or server through the PC or server communication unit, and transmits the data content to the PC or server. When the data is input through the communication unit, it is analyzed and modulated into a power line signal, and then security / disaster prevention system using a power line communication method characterized in that broadcasting on the power line through the second power line communication coupling unit.