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WO2008013360A1 - Home security system capable of detecting trespass information and method thereof - Google Patents

Home security system capable of detecting trespass information and method thereof Download PDF

Info

Publication number
WO2008013360A1
WO2008013360A1 PCT/KR2007/002185 KR2007002185W WO2008013360A1 WO 2008013360 A1 WO2008013360 A1 WO 2008013360A1 KR 2007002185 W KR2007002185 W KR 2007002185W WO 2008013360 A1 WO2008013360 A1 WO 2008013360A1
Authority
WO
WIPO (PCT)
Prior art keywords
trespass
sensor
power line
abnormal situations
home security
Prior art date
Application number
PCT/KR2007/002185
Other languages
French (fr)
Inventor
Hee Kwan Jung
Original Assignee
Kyungdong Network Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyungdong Network Co., Ltd filed Critical Kyungdong Network Co., Ltd
Publication of WO2008013360A1 publication Critical patent/WO2008013360A1/en

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/06—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using power transmission lines
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19608—Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/007—Details of data content structure of message packets; data protocols
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/14—Central alarm receiver or annunciator arrangements

Definitions

  • Trespass detection sensors are generally installed in houses or offices to strengthen security, and to thus prevent unexpected accidents which may occur.
  • home security systems are applied in order to incorporate and control several home appliances in houses, and monitor and control the several home appliances by use of an external phone, etc.
  • FlG. 1 is a schematic diagram illustrating a general home security system.
  • a home controller 11 is selected an absence mode, a sleep mode, etc., by a user, and then is operated as a security system for prevention of crimes in advance.
  • the home controller 11 is notified of occurrence of abnormal situations such as trespass from the outside of a house via wired or wireless communications with the trespass detection sensors 12(1) to 12(3).
  • the home controller 11 and the trespass detection sensors 12(1) to 12(3) can be linked with one another via RS-232 serial communications, wireless communications such as radio-frequency (RF) communication or Zigbee, power line communications, etc.
  • RF radio-frequency
  • the home controller 11 which is notified of occurrence of abnormal situations recognizes only the occurrence of abnormal situations, but copes with the occurrence of abnormal situations such as trespass circumstance through alarming, generating of trespass information, lighting "ON" etc.
  • a sensor having detected illegal trespass circumstance may also locally generate an alarm.
  • a home security system which can detect a trespass position, using power line communications, the home security system comprising:
  • a home security method which can detect a trespass position in a home security system, the home security method comprising the steps of:
  • FlG. 1 is a schematic diagram illustrating a general home security system
  • FlG. 2 is a schematic diagram illustrating a home security system which can detect a trespass position according to the present invention
  • FlG. 3 is a detailed block diagram illustrating a sensor unit in the FlG. 2 system
  • FlG. 4 is a diagram illustrating structure of a data generation packet
  • FlG. 5 is a flowchart view for explaining operation of the FlG. 2 system.
  • FlG. 6 is a schematic diagram showing an event occurrence path according to a sensor position and a time difference. Best Mode for Carrying Out the Invention
  • the present invention also provides a home security method which can detect a trespass position in a home security system, the home security method comprising the steps of: (a) producing unique identification (ID) included data indicating occurrence of abnormal situations when the abnormal situations occur, in a number of sensor units which have respectively unique identifications; (b) converting the produced data into power line communication data o then be transmitted to a power line; (c) receiving the power line communication data in a home controller through power line communications; (d) converting the power line communication data into the original data, and analyzing the converted result to judge whether or not abnormal situation occur and to detect position of a sensor which has detected occurrence of abnormal situations; and (e) generating an alarm if it is judged that the abnormal situations have occurred in the judgment result to then detect a trespass position from the position of the sensor.
  • ID unique identification
  • FlG. 2 is a schematic diagram illustrating a home security system which can detect a trespass position according to the present invention.
  • the home security system shown in FlG. 2 largely includes a home controller 20 and a number of trespass detection sensor units 30(1) to 30(3).
  • the home controller 20 and the sensor units 30(1) to 30(3) communicate with each other using power line communications. If a third sensor unit 30(3) among the three sensor units 30(1) to 30(3) connected with the electric power lines, detects that abnormal situations have occurred, the third sensor unit 30(3) transmits packet information indicating occurrence of abnormal situations to the home controller 20 by the power line communications.
  • the sensor units 30(1) to 30(3) is configured as illustrated in FlG. 3.
  • FlG. 3 is a detailed block diagram illustrating a sensor unit 30 in the FlG. 2 system.
  • the sensor unit 30 includes a power unit 31 which is linked with electric power lines of alternating-current (AC) 220V and supplies an operating voltage of each element, a setting dip switch 32 for setting a number of times of detection attempts of the sensor unit and a unique number of the sensor unit, and a sensor module 33 which detects abnormal situations such as a trespass situation and illegal actions to thus output an action sensing signal.
  • the power unit 31 converts the voltage of AC 220V into 5 V and 12V and supplies the voltages of 5 V and 12V according to the converted result as operating voltages of the respective elements. Also, the sensor unit 30 of FlG.
  • the sensor units 30(1) to 30(3) which are respectively connected with and installed on the electric power lines need unique identifications (IDs).
  • the unique identification (ID) is a neuron identification (ID) for power line communications to recognize the respective sensor units 30(1) to 30(3) and to play a role of indicating a unique position of the respective sensor units 30(1) to 30(3).
  • the unique identification (ID) is a neuron identification (ID) of a power communication line module (PCL) 35 used in the power line communications and is determined at a chip manufacturing step.
  • the home controller 20 operates as a security system mode such as prevention of crimes if an absence mode or a sleep mode is selected by manipulation of a user and communicates with the sensor units 30(1) to 30(3) by the power line communications.
  • the sensor module 33 in the sensor unit 30 performs detection of an action, that is, detects whether or not abnormal situations occur, within a predetermined monitoring range at a place where the sensor module 33 has been installed (step 501).
  • the sensor module 33 converts the action sensing signal into a signal of a form which can be processed in the sensor CPU 34 (step 502). That is, the sensor module 33 converts the action sensing signal of an optical form into an electrical signal and transmits the electrical signal to the sensor CPU 34.
  • the sensor CPU 34 judges whether or not a trespass occurs based on the action sensing signal applied from the sensor module 33 (step 503). Here, the sensor CPU 34 judges whether or not a sensed object or objects are a person or persons.
  • the sensing signal is ignored without indicating the sensed state (step 504). If it is judged as a person or persons in the judgment result of step 503, the sensor CPU 34 turns on the light emitting diode (LED) in the state indicator 37A to thus indicate the detection state of the sensed result by a light emitting method (step 505). Then, the sensor CPU 34 generates data indicating a trespass fact and transmits the data to the power communication line module (PCL) 35 (step 506).
  • the power communication line module (PCL) 35 attaches a predetermined neuron identification (ID), that is, a unique identification (ID) to a header portion of the data packet produced in the sensor CPU 34, to thereby make a packet structure as shown in FIG. 4.
  • ID predetermined neuron identification
  • a data packet has a variable length, and includes a source identification (ID) indicating a dispatch address, a destination identification (ID) indicating a destination address, command or status information, and packet length information.
  • the source identification (ID) indicating a dispatch address is a unique identification (ID) of a sensor which detects occurrence of abnormal situations.
  • the destination identification (ID) indicating a destination address is a unique identification (ID) of the home controller 20.
  • the status information may include time information about the occurrence of abnormal situations.
  • the power communication line module (PCL) 35 converts data having a packet structure of FlG.
  • the coupling circuit 36 loads the power line communication data on the electric power lines and transmits the power line communication data to the home controller 20 (step 508). That is, the sensor units 30(1) to 30(3) transmit a packet having a structure of FlG. 4 to the home controller 20 regularly at a predetermined time interval.
  • the home controller 20 receives the power line communication data transmitted from the power line communication linked sensor units 30(1) to 30(3) through a power line modem (not shown) (step 509).
  • the home controller 20 converts the received power line communication data into a data packet of the original action sensing signal to have been converted into a power line communication signal (step 510).
  • the home controller 20 analyzes the data packet (step 511), recognize status information and senses an event such as occurrence of abnormal situations (step 512). That is, since a dispatch address such as a source identification (ID) is included in a data packet, the home controller 20 analyzes whether or not abnormal situations occur in which sensor using the dispatch address such as a source identification (ID), and confirm a trespass position.
  • ID source identification
  • the home controller 20 can see that the illegal trespass circumstance event has occurred in the third sensor 30(3) through the unique identification (ID) contained in the dispatch address such as a source identification (ID). Since the home controller 20 grasps positions where the sensor units 30(1) to 30(3) have been installed, the home controller 20 generates an alarm indicating occurrence of abnormal situations or informs a user who is located in the outside of a house (step 513).
  • ID unique identification
  • ID source identification
  • an invader's trespass path can be grasped by time differences between the points in time events occur in each sensor. For example, if an event occurred at the time of 23:40:50 in a fourth sensor 30(4) placed in a rear veranda, and an event occurred at the time of 23:40:52 in the second sensor 30(2) placed in the kitchen, that is, the event of the fourth sensor 30(4) occurred earlier than that of the second sensor 30(2), in advance of two seconds, the home controller 20 can see that an invader moved to the kitchen through the rear veranda, based on the unique identification (ID) of each sensor and time information about occurrence of abnormal situations. [36] In addition, the home controller 20 can play a role of a black box which stores a trespass position, trespass time and a trespass migration path, and can take advantage of the stored information as necessary.
  • ID unique identification
  • a home security system and a method thereof which can detect a trespass position provides an effect of making a user or administrator see an illegal trespass circumstance occurrence position and an illegal trespass circumstance occurrence path as well as see occurrence of abnormal situations, through unique identifications (ID) of respective sensor units which are power line devices, and enabling the user or administrator to more positively cope with the occurrence of abnormal situations, to thereby further enhance a home security performance.
  • ID unique identifications
  • a home security system and a method thereof which can detect a trespass position according to the present invention can be applied to a security field or a crime prevention field, using trespass detection sensors which detect trespass positions.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Alarm Systems (AREA)

Abstract

Provided are a home security system capable of detecting a trespass position or time as well as detecting whether or not a trespass occurs, via a unique identification (ID) assigned for each trespass detection sensor via a power line communication, and a home security method thereof. The home security system includes a number of sensor units which produce packet data indicating occurrence of abnormal situations when the abnormal situations occur, and attach the data packet with a neuron identification (ID) being a unique identification (ID) which is sensor installation position information, to then be transmitted via a power line, and a home controller which operates a security system according to manipulation of a user, receives the packet data transmitted via the power line from the sensor, analyzes occurrence of abnormal situations, and grasps a trespass position and a trespass migration path through the unique identification (ID). Thus, if abnormal situations such as external trespass occur, a trespass position, path and time can be confirmed to thus further enhance a home security performance.

Description

Description
HOME SECURITY SYSTEM CAPABLE OF DETECTING TRESPASS INFORMATION AND METHOD THEREOF
Technical Field
[1] The present invention relates to a home security system using trespass detection sensors, and more particularly, to a home security system capable of detecting a trespass position or time as well as detecting whether or not a trespass occurs, via a unique identification (ID) assigned for each trespass detection sensor via a power line communication, and a home security method thereof. Background Art
[2] Trespass detection sensors are generally installed in houses or offices to strengthen security, and to thus prevent unexpected accidents which may occur. In addition, home security systems are applied in order to incorporate and control several home appliances in houses, and monitor and control the several home appliances by use of an external phone, etc.
[3] In order to prevent uncertainty of trespass when to go out or when to go to bed, trespass detection sensors are connected with a home security system to thus use various methods of alarming a user who is located at the inside and/or outside of a house of emergency conditions of the house or turning on domestic illumination. Also, trespass detection sensors are designed to use various kinds of detection methods according to places where they are installed.
[4] FlG. 1 is a schematic diagram illustrating a general home security system. In FlG. 1, a home controller 11 is selected an absence mode, a sleep mode, etc., by a user, and then is operated as a security system for prevention of crimes in advance. The home controller 11 is notified of occurrence of abnormal situations such as trespass from the outside of a house via wired or wireless communications with the trespass detection sensors 12(1) to 12(3). The home controller 11 and the trespass detection sensors 12(1) to 12(3) can be linked with one another via RS-232 serial communications, wireless communications such as radio-frequency (RF) communication or Zigbee, power line communications, etc. The home controller 11 which is notified of occurrence of abnormal situations recognizes only the occurrence of abnormal situations, but copes with the occurrence of abnormal situations such as trespass circumstance through alarming, generating of trespass information, lighting "ON" etc. Of course, among trespass detection sensors 12(1) to 12(3), a sensor having detected illegal trespass circumstance may also locally generate an alarm.
[5] However, although several trespass detection sensors have been installed in the home security system, only occurrence of abnormal situations might be sensed. There have been problems that it cannot be sensed that abnormal situations occur at which place and moves through which path.
Disclosure of Invention Technical Problem
[6] Therefore, in order to supplement the shortcoming of the conventional art, it is an object of the present invention to provide a home security system capable of detecting a trespass position or time via a trespass detection sensor which detects whether or not a trespass occurs, via a unique identification (ID) assigned for each trespass detection sensor via a power line communication with a home controller, and grasping a trespass migration path, and a home security method thereof. Technical Solution
[7] To accomplish the above object of the present invention, there is provided a home security system which can detect a trespass position, using power line communications, the home security system comprising:
[8] a number of sensor units which have respectively unique identifications, and produce unique identification (ID) included data indicating occurrence of abnormal situations when the abnormal situations occur, to then be transmitted to a power line; and
[9] a home controller which communicates with the number of sensor units via power line communications, analyzes the received data indicating occurrence of abnormal situations, recognizes the occurrence of abnormal situations, generating an alarm, and grasps a position where the abnormal situations have occurred from the unique identification (ID) included in the data indicating the occurrence of abnormal situations.
[10] According to another aspect of the present invention, there is also provided a home security method which can detect a trespass position in a home security system, the home security method comprising the steps of:
[11] (a) producing unique identification (ID) included data indicating occurrence of abnormal situations when the abnormal situations occur, in a number of sensor units which have respectively unique identifications;
[12] (b) converting the produced data into power line communication data o then be transmitted to a power line;
[13] (c) receiving the power line communication data in a home controller through power line communications;
[14] (d) converting the power line communication data into the original data, and analyzing the converted result to judge whether or not abnormal situation occur and to detect position of a sensor which has detected occurrence of abnormal situations; and
[15] (e) generating an alarm if it is judged that the abnormal situations have occurred in the judgment result to then detect a trespass position from the position of the sensor. Advantageous Effects
[16] A home security system and a home security method thereof, according to the present invention provides an effect of enhancing a home security performance, in which positions and time of trespass detection sensors which have detected that abnormal situations have occurred, can be detected using unique identifications (ID) assigned for each trespass detection sensor via a power line communication, to thus let a use grasp a trespass migration path and positively cope with the abnormal situations having occurred in a house based on the trespass migration path. Brief Description of the Drawings
[17] FlG. 1 is a schematic diagram illustrating a general home security system;
[18] FlG. 2 is a schematic diagram illustrating a home security system which can detect a trespass position according to the present invention;
[19] FlG. 3 is a detailed block diagram illustrating a sensor unit in the FlG. 2 system;
[20] FlG. 4 is a diagram illustrating structure of a data generation packet;
[21] FlG. 5 is a flowchart view for explaining operation of the FlG. 2 system; and
[22] FlG. 6 is a schematic diagram showing an event occurrence path according to a sensor position and a time difference. Best Mode for Carrying Out the Invention
[23] The present invention provides a home security system which can detect a trespass position, using power line communications, the home security system comprising: a number of sensor units which have respectively unique identifications, and produce unique identification (ID) included data indicating occurrence of abnormal situations when the abnormal situations occur, to then be transmitted to a power line; and a home controller which communicates with the number of sensor units via power line communications, analyzes the received data indicating occurrence of abnormal situations, recognizes the occurrence of abnormal situations, generating an alarm, and grasps a position where the abnormal situations have occurred from the unique identification (ID) included in the data indicating the occurrence of abnormal situations.
[24] The present invention also provides a home security method which can detect a trespass position in a home security system, the home security method comprising the steps of: (a) producing unique identification (ID) included data indicating occurrence of abnormal situations when the abnormal situations occur, in a number of sensor units which have respectively unique identifications; (b) converting the produced data into power line communication data o then be transmitted to a power line; (c) receiving the power line communication data in a home controller through power line communications; (d) converting the power line communication data into the original data, and analyzing the converted result to judge whether or not abnormal situation occur and to detect position of a sensor which has detected occurrence of abnormal situations; and (e) generating an alarm if it is judged that the abnormal situations have occurred in the judgment result to then detect a trespass position from the position of the sensor. Mode for the Invention
[25] Hereinbelow, a home security system and a home security method thereof according to an exemplary preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.
[26] FlG. 2 is a schematic diagram illustrating a home security system which can detect a trespass position according to the present invention. The home security system shown in FlG. 2 largely includes a home controller 20 and a number of trespass detection sensor units 30(1) to 30(3). The home controller 20 and the sensor units 30(1) to 30(3) communicate with each other using power line communications. If a third sensor unit 30(3) among the three sensor units 30(1) to 30(3) connected with the electric power lines, detects that abnormal situations have occurred, the third sensor unit 30(3) transmits packet information indicating occurrence of abnormal situations to the home controller 20 by the power line communications. Here, the sensor units 30(1) to 30(3) is configured as illustrated in FlG. 3.
[27] FlG. 3 is a detailed block diagram illustrating a sensor unit 30 in the FlG. 2 system.
In FlG. 3, the sensor unit 30 includes a power unit 31 which is linked with electric power lines of alternating-current (AC) 220V and supplies an operating voltage of each element, a setting dip switch 32 for setting a number of times of detection attempts of the sensor unit and a unique number of the sensor unit, and a sensor module 33 which detects abnormal situations such as a trespass situation and illegal actions to thus output an action sensing signal. The power unit 31 converts the voltage of AC 220V into 5 V and 12V and supplies the voltages of 5 V and 12V according to the converted result as operating voltages of the respective elements. Also, the sensor unit 30 of FlG. 3 includes a sensor central processing unit (CPU) 34 which receives the action sensing signal from the sensor module 33 and thus judge occurrence of abnormal situations, a power communication line (PCL) module 35 which generates data of a data packet structure including a unique identification (ID) and indicating that abnormal situations have occurred, and converting the data packet into power line communication data; and a coupling circuit 36 which loads the power line communication data on a power line. Meanwhile, the sensor unit 30 of FlG. 3 includes state indicators 37A and 37B which indicate a detection state and an action mode state using light emitting diode (LED) lighting indications, respectively.
[28] The trespass position detection operation of the home security system according to the present invention will be described in more detail with reference to FIGS. 4 to 6.
[29] The sensor units 30(1) to 30(3) which are respectively connected with and installed on the electric power lines need unique identifications (IDs). The unique identification (ID) is a neuron identification (ID) for power line communications to recognize the respective sensor units 30(1) to 30(3) and to play a role of indicating a unique position of the respective sensor units 30(1) to 30(3). The unique identification (ID) is a neuron identification (ID) of a power communication line module (PCL) 35 used in the power line communications and is determined at a chip manufacturing step. The home controller 20 operates as a security system mode such as prevention of crimes if an absence mode or a sleep mode is selected by manipulation of a user and communicates with the sensor units 30(1) to 30(3) by the power line communications.
[30] The sensor module 33 in the sensor unit 30 performs detection of an action, that is, detects whether or not abnormal situations occur, within a predetermined monitoring range at a place where the sensor module 33 has been installed (step 501). The sensor module 33 converts the action sensing signal into a signal of a form which can be processed in the sensor CPU 34 (step 502). That is, the sensor module 33 converts the action sensing signal of an optical form into an electrical signal and transmits the electrical signal to the sensor CPU 34. The sensor CPU 34 judges whether or not a trespass occurs based on the action sensing signal applied from the sensor module 33 (step 503). Here, the sensor CPU 34 judges whether or not a sensed object or objects are a person or persons. If the sensed object is not a person or persons, the sensing signal is ignored without indicating the sensed state (step 504). If it is judged as a person or persons in the judgment result of step 503, the sensor CPU 34 turns on the light emitting diode (LED) in the state indicator 37A to thus indicate the detection state of the sensed result by a light emitting method (step 505). Then, the sensor CPU 34 generates data indicating a trespass fact and transmits the data to the power communication line module (PCL) 35 (step 506). The power communication line module (PCL) 35 attaches a predetermined neuron identification (ID), that is, a unique identification (ID) to a header portion of the data packet produced in the sensor CPU 34, to thereby make a packet structure as shown in FIG. 4.
[31] Referring to FIG. 4, a data packet has a variable length, and includes a source identification (ID) indicating a dispatch address, a destination identification (ID) indicating a destination address, command or status information, and packet length information. Here, the source identification (ID) indicating a dispatch address is a unique identification (ID) of a sensor which detects occurrence of abnormal situations. The destination identification (ID) indicating a destination address is a unique identification (ID) of the home controller 20. In addition, the status information, may include time information about the occurrence of abnormal situations. [32] In addition, the power communication line module (PCL) 35 converts data having a packet structure of FlG. 4 into power line communication data and outputs the converted result, that is, the power line communication data to the coupling circuit 36 (step 507). The coupling circuit 36 loads the power line communication data on the electric power lines and transmits the power line communication data to the home controller 20 (step 508). That is, the sensor units 30(1) to 30(3) transmit a packet having a structure of FlG. 4 to the home controller 20 regularly at a predetermined time interval.
[33] The home controller 20 receives the power line communication data transmitted from the power line communication linked sensor units 30(1) to 30(3) through a power line modem (not shown) (step 509). The home controller 20 converts the received power line communication data into a data packet of the original action sensing signal to have been converted into a power line communication signal (step 510). Then, the home controller 20 analyzes the data packet (step 511), recognize status information and senses an event such as occurrence of abnormal situations (step 512). That is, since a dispatch address such as a source identification (ID) is included in a data packet, the home controller 20 analyzes whether or not abnormal situations occur in which sensor using the dispatch address such as a source identification (ID), and confirm a trespass position. For example, in the case that an illegal trespass circumstance event occurs in the third sensor 30(3), the home controller 20 can see that the illegal trespass circumstance event has occurred in the third sensor 30(3) through the unique identification (ID) contained in the dispatch address such as a source identification (ID). Since the home controller 20 grasps positions where the sensor units 30(1) to 30(3) have been installed, the home controller 20 generates an alarm indicating occurrence of abnormal situations or informs a user who is located in the outside of a house (step 513).
[34] Meanwhile, if time information is included in addition to the status information included in the data packet, the home controller 20 can grasp a trespass path, or trespass route.
[35] That is, referring to FlG. 6, an invader's trespass path can be grasped by time differences between the points in time events occur in each sensor. For example, if an event occurred at the time of 23:40:50 in a fourth sensor 30(4) placed in a rear veranda, and an event occurred at the time of 23:40:52 in the second sensor 30(2) placed in the kitchen, that is, the event of the fourth sensor 30(4) occurred earlier than that of the second sensor 30(2), in advance of two seconds, the home controller 20 can see that an invader moved to the kitchen through the rear veranda, based on the unique identification (ID) of each sensor and time information about occurrence of abnormal situations. [36] In addition, the home controller 20 can play a role of a black box which stores a trespass position, trespass time and a trespass migration path, and can take advantage of the stored information as necessary.
[37] As described above, a home security system and a method thereof which can detect a trespass position according to the present invention provides an effect of making a user or administrator see an illegal trespass circumstance occurrence position and an illegal trespass circumstance occurrence path as well as see occurrence of abnormal situations, through unique identifications (ID) of respective sensor units which are power line devices, and enabling the user or administrator to more positively cope with the occurrence of abnormal situations, to thereby further enhance a home security performance.
[38] As described above, the present invention has been described with respect to a particularly preferred embodiment. However, the present invention is not limited to the above embodiment, and it is possible for one who has an ordinary skill in the art to make various modifications and variations, without departing off the spirit of the present invention. Thus, the protective scope of the present invention is not defined within the detailed description thereof but is defined by the claims to be described later and the technical spirit of the present invention. Industrial Applicability
[39] As described above, a home security system and a method thereof which can detect a trespass position according to the present invention can be applied to a security field or a crime prevention field, using trespass detection sensors which detect trespass positions.

Claims

Claims
[1] A home security system which can detect a trespass position, using power line communications, the home security system comprising: a number of sensor units which have respectively unique identifications, and produce unique identification (ID) included data indicating occurrence of abnormal situations when the abnormal situations occur, to then be transmitted to a power line; and a home controller which communicates with the number of sensor units via power line communications, analyzes the received data indicating occurrence of abnormal situations, recognizes the occurrence of abnormal situations, generating an alarm, and grasps a position where the abnormal situations have occurred from the unique identification (ID) included in the data indicating the occurrence of abnormal situations.
[2] The home security system according to claim 1, wherein the sensor unit comprises: a power unit; a setting dip switch for setting the number of times of detection attempts of the sensor unit and a unique number of the sensor unit; a sensor module which detects abnormal situations such as a trespass situation and illegal actions to thus output an action sensing signal; a sensor central processing unit (CPU) which receives the action sensing signal from the sensor module and thus judge occurrence of abnormal situations; a power communication line (PCL) module which generates data of a data packet structure including a unique identification (ID) of the sensor unit and indicating that abnormal situations have occurred, and converting the data packet into power line communication data; a coupling circuit which transmits the power line communication data to the home controller via a power line; and state indicators which indicate a detection state and an action mode state using light emitting diode (LED) lighting indications, respectively.
[3] The home security system according to claim 2, wherein the sensor module converts an action sensing signal of an optical form into an electrical signal which can processed in the sensor central processing unit (CPU) and transmits the converted result, that is, the electrical signal to the sensor central processing unit (CPU).
[4] The home security system according to claim 2, wherein the data packet has a variable length, and comprises a source identification (ID) indicating a dispatch address, a destination identification (ID) indicating a destination address, command or status information, and packet length information.
[5] The home security system according to claim 4, wherein the data packet further comprises time information about occurrence of abnormal situations.
[6] The home security system according to claim 5, wherein the home controller converts the received power line communication data into a data packet of the original action sensing signal to have been converted into a power line communication signal, grasps position of the sensor from the unique identification (ID) which is a dispatch address of a source identification (ID) contained in the data packet, and combines the grasped sensor position with the time information to grasp a trespass migration path.
[7] A home security method which can detect a trespass position in a home security system, the home security method comprising the steps of:
(a) producing unique identification (ID) included data indicating occurrence of abnormal situations when the abnormal situations occur, in a number of sensor units which have respectively unique identifications;
(b) converting the produced data into power line communication data o then be transmitted to a power line;
(c) receiving the power line communication data in a home controller through power line communications;
(d) converting the power line communication data into the original data, and analyzing the converted result to judge whether or not abnormal situation occur and to detect position of a sensor which has detected occurrence of abnormal situations; and
(e) generating an alarm if it is judged that the abnormal situations have occurred in the judgment result to then detect a trespass position from the position of the sensor.
[8] The home security method of claim 7, wherein the step (a) performs an action sensing operation to judge whether or not a trespass occurs, and generates data about a trespass fact including a unique identification (ID) indicating position of the sensor which detects the trespass and time information indicating trespass time.
[9] The home security method of claim 8, wherein the step (e) combines the grasped sensor position with the time information to grasp a trespass migration path.
PCT/KR2007/002185 2006-07-24 2007-05-03 Home security system capable of detecting trespass information and method thereof WO2008013360A1 (en)

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KR1020060069140A KR20080009483A (en) 2006-07-24 2006-07-24 Home Security System and Method for Intrusion Location Identification
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