WO2012175762A1 - Procédé et dispositif de protection de lignes de conducteurs électriques - Google Patents

Procédé et dispositif de protection de lignes de conducteurs électriques Download PDF

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Publication number
WO2012175762A1
WO2012175762A1 PCT/ES2012/000152 ES2012000152W WO2012175762A1 WO 2012175762 A1 WO2012175762 A1 WO 2012175762A1 ES 2012000152 W ES2012000152 W ES 2012000152W WO 2012175762 A1 WO2012175762 A1 WO 2012175762A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
header
electrical
terminator
alarm
Prior art date
Application number
PCT/ES2012/000152
Other languages
English (en)
Spanish (es)
Inventor
Germán HORMAZA VILLELABEITIA
Francisco Miguel NIETO MONTESANO
Javier NARVÁEZ RIARÁN
Juan Carlos PEÑAS MANRIQUE
José Antonio HORTAL CARRETERO
Original Assignee
Iberwave Ingenieria Sll
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 Iberwave Ingenieria Sll filed Critical Iberwave Ingenieria Sll
Publication of WO2012175762A1 publication Critical patent/WO2012175762A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • 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
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • 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

Definitions

  • the present invention relates generally to the field of protection of electric conductor lines against theft, such as for example copper wire lines.
  • Copper cable subtraction occurs routinely in remote locations, as a natural way to minimize the risks by the perpetrators of the theft.
  • Various automatic surveillance methods have been proposed in the prior art for such installations, such as motion detection, camera surveillance and perimeter protection. In all cases, the solution presents obvious practical problems due to the special characteristics of the object to be protected.
  • the fundamental problems of these proposed solutions can be mentioned false positives due to the presence of animals or rain, and the economic impossibility of monitoring long copper lines.
  • Another category of protection systems is based on the sending of a continuous or alternating low frequency voltage, so that the cut of the cable prior to the subtraction generates the interruption of the electrical circuit, detecting said interruption to generate an alarm.
  • This solution mainly presents two types of problems. On the one hand it cannot be applied when the conductor is in operation (that is, when voltage is applied to the power supply), and on the other hand it does not fit wiring structures complex (as connected in tree, or star).
  • US patent application US 2010/0085189 A1 intends to partially solve the drawbacks of the prior art, disclosing a method such as that described above, which also inserts a low voltage in the electrical circuit when said conductor is not in operation. However, this method still does not adapt to complex wiring structures.
  • the present invention relates to a method and a device for protection of laying of electrical conductors, in order to generate an alarm when the interruption of the integrity of the circuit is detected.
  • the method comprises sequentially:
  • timing period comprising:
  • the method comprises generating a driver cut-off alarm state in the absence of the at least one unique identifier in the header sensor of the laying, since said absence of the at least one unique identifier implies the subtraction of the physical medium by the that the radio frequency signal is propagated (that is, the electrical conductor).
  • a method is provided that allows the detection of the subtraction of a single wire from an electrical conductor consisting of a multitude of wires.
  • the method according to the second aspect of the present invention comprises, in addition to the steps of the first aspect process, the additional steps of
  • the electrical parameters of the conductor to be protected such as, for example, voltage, current, impedance, etc.
  • the electrical parameters measured at one end of the electrical conductor will be different from those measured in the another end, therefore the absence of said conductor wire can be detected even though the radio frequency signal between both ends of the electrical conductor can still be transmitted.
  • the device of the present invention suitable for practicing the procedure described above, comprises, according to a first aspect of the invention:
  • At least one terminator sensor arranged to inject a radio frequency signal into at least one electrical conductor to be protected, modulated and encoded to transmit at least one unique identifier
  • Y a header sensor arranged to receive, demodulate and decode said radio frequency signal
  • the header sensor is arranged to generate an alarm state in the absence of at least one unique identifier in the header.
  • the device is adapted to implement the method according to the second aspect of the present invention, detecting the subtraction of a single wire from an electrical conductor comprising a multitude of wires, for which the sensor
  • the terminator is also arranged to measure electrical parameters and include them in the radio frequency signal transmitted by said electrical conductor.
  • the header sensor is in turn arranged to measure the same electrical parameters and compare them with the electrical parameters transmitted from the terminator sensor; so that a cut-off alarm state of at least one wire can be generated in the header sensor in case the electrical parameters measured in the terminator sensor and the electrical parameters measured in the header do not match.
  • the present invention provides a method and a device for protecting highly reliable electrical conductor lines and allowing their application to complex wiring structures.
  • each providing a radio frequency signal comprising at least one unique identifier.
  • These radio frequency signals are received in a single header and, in the absence of a specific unique identifier, may determine exactly which section of electrical conductor is being subtracted.
  • the elements connected to the low-voltage electrical network allow operation under all conditions of the laying of electrical conductors that are intended to be protected. That is, the method and device of the present invention will work both with applied voltage and in the event that the line has been temporarily disconnected from the general mains (for example during the day on driving lines for street lighting street lamps) ).
  • 201 100718 also refers to a device according to claim 15 of this patent, identical to claim 1 1 of Spanish patent application no. 201 100718 with the same proviso, which does not affect the content or scope of the claim, that the term “header (3)” in the previous patent application has the same scope as the term “header sensor (3)” in this patent.
  • Figure 1 shows a flow chart representing the process according to the preferred embodiment of the first aspect of the present invention.
  • Figure 2 shows a flow chart representing the process according to the preferred embodiment of the second aspect of the present invention.
  • Figure 3 shows a block diagram according to the preferred embodiment of the method of the second aspect of the present invention.
  • Figure 4 shows the internal block structure of the head sensor of the protection device according to the preferred embodiment of the present invention.
  • Figure 5 shows the internal block structure of the terminator sensor of the protection device according to the preferred embodiment of the present invention.
  • Figure 6 shows the internal block structure of the multinode sensor of the protection device according to the preferred embodiment of the present invention.
  • Figure 7 shows the complete structure of the operation of the process according to a first embodiment of the present invention.
  • Figure 8 shows the complete structure of the operation of the process according to a second embodiment of the present invention.
  • the method of protection of laying of electrical conductors comprises sequentially:
  • timing period that includes:
  • ID list an internal list of unique identifiers
  • Said internal list can be pre-configured during installation or alternatively it can be generated automatically by the sensor itself. header after initial startup.
  • the procedure further comprises generating a driver cut-off alarm state, preceeding its shipment according to a predetermined configuration as will be described below in the present invention.
  • a mechanism is also implemented that prevents the transmission of the driver's cut-off alarm the first time a sensor fault is detected, such as for example a fault counter or any other similar mechanism known to those skilled in the art.
  • Figure 2 An organization chart similar to that of Figure 1 is presented in Figure 2, which represents the method of protection of laying of electrical conductors according to the second aspect of the present invention. Said process is applied to the protection of electric conductor lines comprising a multitude of wires, such as for example the typical five-wire copper electrical conductors.
  • the measurement and comparison of the electrical parameters in the header of the laying can be carried out by the header sensor itself mentioned above, or by a multinode sensor that connects to each of the various lines in a complex wiring situation and that is directly connected to said header sensor.
  • a cut-off alarm state of at least one wire is generated in case the electrical parameters measured in the terminator sensor and the electrical parameters measured in the header (sensor header or multinode sensor) do not match.
  • a mechanism is also implemented that prevents the transmission of the cut-off alarm of at least one wire the first time a device is detected. failure of a sensor, such as a fault counter or any other similar mechanism known to those skilled in the art.
  • FIG. 3 shows the preferred embodiment of the method of the second aspect of the present invention.
  • This figure shows a complex wiring comprising four electrical conductors (2).
  • the method according to this embodiment of the present invention requires in this case the use of four terminator sensors (1) and a header sensor (3).
  • ID 00001, 00002, 00003 and 00004
  • the characteristics of the radio frequency signal and the modulation and coding are chosen taking into account criteria of:
  • the signal injected into the electrical conductor (2) is transmitted through it, and, eventually, reaches the header sensor (3).
  • Said header sensor (3) is responsible for detecting, demodulating and decoding the received radio frequency signal, which contains, as mentioned above, the unique identifier of each terminator sensor (1).
  • the interruption of the electrical conductor due to breakage or cutting causes that the head sensor (3) does not receive the proper identifier of the corresponding terminator sensor (1), which is considered a condition of conductor cut-off alarm .
  • each electrical conductor (2) comprises five wires (three wires for phases R, S and T, one wire for neutral N, and one grounding wire GND).
  • a series of electrical parameters (voltage, current, impedance, ...) are measured and transmitted together with the radio frequency signal, through the electrical conductors (2), to the Headboard.
  • a multinode sensor (4) is also included before the header sensor (3). Said multinode sensor (4) is responsible for adapting the connection and making the corresponding measurements of the electrical parameters in each of the electrical conductors (2).
  • the header sensor (3) upon receiving the Radio frequency signal with the corresponding unique identifier will not detect a cut-off alarm status of the conductor from the terminator sensor (1).
  • the breakage of a single wire causes the electrical balance between the different wires of the electric conductor (2) to be modified, which is detected as a variation of the electrical parameters measured at the different points of the line (specifically, measured in each terminator sensor (1) and in the header). In this way, the comparison between the electrical parameters measured at both ends of the electrical conductor (2) allows detecting a cut-off alarm state of at least one wire in that electrical conductor (2).
  • the electrical conductor laying protection device comprises:
  • At least one terminator sensor (1) arranged to inject a radio frequency signal into at least one electrical conductor to be protected, modulated and encoded to transmit at least one unique identifier, as well as to measure electrical parameters and include them in said signal of radiofrequency;
  • Y a header sensor (3) arranged to receive, demodulate and decode said radio frequency signal, as well as to measure the same electrical parameters and compare them with the electrical parameters transmitted from the terminator sensor (1);
  • the header sensor (3) is arranged to generate a driver cut-off alarm state in the absence of at least one unique identifier in the header.
  • the header sensor (3) is arranged to generate a cut-off alarm state of at least one wire in the electrical conductor (2) in case the electrical parameters measured in the terminator sensor (1) and the electrical parameters measured in the header sensor (3) do not match.
  • the device further comprises a multinode sensor (4) connected to the header sensor (3).
  • the electrical parameters in the header are measured in said sensor multinode (4) and transmitted to the header sensor (3).
  • the device further comprises a fault counter arranged to prevent the generation of a conductor cut-off alarm state and a cut-off alarm state of at least one wire the first time said wires are detected. alarm states
  • the header sensor (3) in turn comprises the following constituent elements.
  • the header sensor (3) includes at least one line interface (3A), which adapts the internal circuitry of the header sensor (3) to the characteristics of the electrical conductor line (2) to be protected .
  • the basic functions of said at least one interface (3A) are:
  • the header sensor (3) includes a modem (3B) arranged to demodulate and decode the radio frequency signal transmitted by the electrical conductor (2).
  • the modem (3B) can demodulate the signal transmitted in the work band, with good sensitivity and reliability, in order to avoid false alarms.
  • the header sensor (3) includes a controller (3C) arranged to manage the header sensor (3) and generate and manage the alarms.
  • the alarm transmission module (3D) is arranged to transmit a signal as will be described hereinafter.
  • said alarm transmission module (3D) is based on communications via GSM.
  • GSM Global System for Mobile communications
  • the power supply unit (3E) is included in applications in which the device is applied to power lines that do not receive power supply during certain periods (for example, power lines). night public lighting).
  • Said power block (3E) provides the necessary power to the different head sensor blocks (3), and implements a battery that is responsible for maintaining the security of the system during periods when there is no available power voltage.
  • FIG. 5 shows the structure of the terminator sensor (1) according to the preferred embodiment of the invention.
  • Said terminator sensor (1) comprises the following constituent elements.
  • a line interface (1A) that adapts the internal circuitry of the terminator sensor to the characteristics of the line of electrical conductors to be protected.
  • a modem (1 B) arranged in this case to modulate and encode the radio frequency signal with the identifier corresponding to said terminator sensor.
  • the signal is encoded and modulated in the D band described in the EN 50065 standard of CENELEC (95-125 KHz), for signaling in electric cables, in order to provide interoperability (not to interfere or be interfered with) with other services that could use the same electric conduction to transmit information.
  • a controller (1C) of the terminator sensor that is responsible for providing the basic system timing, storing the functional parameters and managing communications through the modem (1 B).
  • the power supply unit (1 D) manages the charge of an internal battery to guarantee the operation of the terminator sensor (1) in the absence of power from the mains.
  • Said multinode sensor (4) comprises a set of n line interfaces and n measuring elements (4A).
  • the n line interfaces adapt the internal circuitry of the multinode sensor (4) to the characteristics of each of the n lines of electrical conductors (2) to be protected.
  • the n measuring elements measure the electrical parameters of each of the n lines of electrical conductors (2) connected to it.
  • the multinode sensor (4) also comprises a control and communications block (4B).
  • Sensor controller Multinode (4) manages the general operation of the same to perform the measurements in each of the measurement blocks, while the communication element is responsible for transmitting the data corresponding to said measurements to the header sensor (3) to allow its processing and comparison with the measurements of electrical parameters from the terminator sensors (1).
  • the power supply unit (4C) manages the charge of an internal battery to guarantee the operation of the multinode sensor (4) in the absence of power coming from the mains.
  • the method and device of the present invention can operate according to a centralized model or according to a direct model, respectively represented in Figures 7 and 8.
  • an alarm (5) is generated (for example through a GSM / GPRS), and is sent to a database (6) of an alarm center that in turn is responsible for sending the alarm information (5) to at least one programmed final recipient (for example, to a user mobile (7) or mobile security center (8) by SMS message, or via the Internet to a user computer (9)).
  • This centralized model of the process of the present invention provides the following advantages:
  • the information is centralized and communications protocols are more secure (bidirectional protocol, alarm confirmation, %)
  • the service provider also provides support and maintenance services to users
  • an alarm (5) is generated (for example through a GSM / GPRS connection), and sent directly to a programmed end user (for example, a user's mobile (7) or a central mobile of security (8)) by, for example, an SMS message.
  • a programmed end user for example, a user's mobile (7) or a central mobile of security (8)

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Alarm Systems (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de protection de lignes de conducteurs électriques. Le procédé comprend de manière séquentielle une période de temporisation et une période de vérification. La période de temporisation comprend à son tour l'injection, à une extrémité du conducteur électrique, d'un signal radiofréquence, modulé et codé pour transmettre au moins un identificateur unique; la transmission, par ledit conducteur électrique, dudit signal radiofréquence; et la réception, la démodulation et le décodage dudit signal radiofréquence dans un capteur de tête à l'autre extrémité de la ligne. La période de vérification comprend la comparaison, au niveau du capteur de tête, d'au moins un identificateur unique reçu avec une liste interne d'identificateurs uniques. Ainsi, en cas d'absence d'au moins un identificateur unique au niveau de la tête, un état d'alarme est généré. Le procédé peut être utilisé sur des conducteurs électriques à fils multiples.
PCT/ES2012/000152 2011-06-20 2012-05-31 Procédé et dispositif de protection de lignes de conducteurs électriques WO2012175762A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP201100718 2011-06-20
ES201100718A ES2397584B1 (es) 2011-06-20 2011-06-20 Procedimiento y dispositivo de protección de tendidos de conductores eléctricos.

Publications (1)

Publication Number Publication Date
WO2012175762A1 true WO2012175762A1 (fr) 2012-12-27

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PCT/ES2012/000152 WO2012175762A1 (fr) 2011-06-20 2012-05-31 Procédé et dispositif de protection de lignes de conducteurs électriques

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ES (1) ES2397584B1 (fr)
WO (1) WO2012175762A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015052357A1 (fr) * 2013-10-07 2015-04-16 Iberwave Ingenieria Sll Procédé et dispositif antivol pour des câbles de communication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008299498A (ja) * 2007-05-30 2008-12-11 Chubu Electric Power Co Inc 架線切断の検出方法
KR20090105216A (ko) * 2008-04-02 2009-10-07 서순구 전력선통신을 이용한 전선도난 감시장치.
KR101026353B1 (ko) * 2010-10-08 2011-04-05 한빛디엔에스 주식회사 디씨 전력선 통신을 이용한 태양전지모듈 제어 및 모니터링시스템

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008299498A (ja) * 2007-05-30 2008-12-11 Chubu Electric Power Co Inc 架線切断の検出方法
KR20090105216A (ko) * 2008-04-02 2009-10-07 서순구 전력선통신을 이용한 전선도난 감시장치.
KR101026353B1 (ko) * 2010-10-08 2011-04-05 한빛디엔에스 주식회사 디씨 전력선 통신을 이용한 태양전지모듈 제어 및 모니터링시스템

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015052357A1 (fr) * 2013-10-07 2015-04-16 Iberwave Ingenieria Sll Procédé et dispositif antivol pour des câbles de communication
ES2537793A1 (es) * 2013-10-07 2015-06-12 Iberwave Ingenieria Sll Procedimiento y dispositivo antirrobo de cables de comunicaciones

Also Published As

Publication number Publication date
ES2397584B1 (es) 2014-03-20
ES2397584A1 (es) 2013-03-08

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