EP0179435B1 - Dispositif pour clôture électrique - Google Patents

Dispositif pour clôture électrique Download PDF

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Publication number
EP0179435B1
EP0179435B1 EP85113357A EP85113357A EP0179435B1 EP 0179435 B1 EP0179435 B1 EP 0179435B1 EP 85113357 A EP85113357 A EP 85113357A EP 85113357 A EP85113357 A EP 85113357A EP 0179435 B1 EP0179435 B1 EP 0179435B1
Authority
EP
European Patent Office
Prior art keywords
electric fence
electric
pulse
pulse generator
devices
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP85113357A
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German (de)
English (en)
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EP0179435A3 (en
EP0179435A2 (fr
Inventor
Wilhelm Dipl.-Ing. Weinrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Horizont Geraetewerk GmbH
Original Assignee
Horizont Geraetewerk GmbH
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Priority to AT85113357T priority Critical patent/ATE69905T1/de
Publication of EP0179435A2 publication Critical patent/EP0179435A2/fr
Publication of EP0179435A3 publication Critical patent/EP0179435A3/de
Application granted granted Critical
Publication of EP0179435B1 publication Critical patent/EP0179435B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Definitions

  • the invention relates to an electric fence device for applying electrical impulses to an electrically conductive electric fence to be connected, which is electrically insulated from earth, the electrical impedance of which is undesirable or arbitrary variable due to external influences, the electrical pulse generator circuit arrangement provided in the electric fence device testing and monitoring device for the condition of the electric fence are assigned.
  • an intruder warning system in which high frequency signals are generated by an oscillator and placed on an antenna. As soon as the body of an intruder enters the electrical field of the antenna, the radiation conditions of the antenna for the high-frequency signals change, which can be used for the display or alarm.
  • the high-frequency signals are placed on a field wire laid parallel to the antenna. Due to the intruder's body entering the electrical field of field wire and antenna, the induction between field wire and antenna and thus the transmission of high-frequency signals from field wire to the antenna is changed, which is also to be used for indicating or alarming.
  • no electric fences can be operated which are subjected to high-voltage pulses in order to deter animals or intruders coming into galvanic contact with the electric fence with an electric shock.
  • an article in BULL.SEV 62 (1971) 21, pages 1009 to 1010 contains an apparatus for measuring the Earth resistance of an overhead line pylon described with protective conductors.
  • electrical pulses are to be used, which are to be measured by means of an electronic voltmeter and used to compare the earth resistance to a calibration resistor.
  • this also means that no monitoring of an electric fence and energizer that is in operation can be carried out.
  • the monitoring of the impedance is primarily to be used to check the correct operating condition of the electric fence from a single point, generally from the electric fence device.
  • Impedance monitoring can also be used with object protection fences to detect arbitrary changes to the object protection fence, in particular when a person tries to make a path over or through the fence to the protected object.
  • An electronic measuring device as is known, for example, from BUL SEV 62 (1971) 21, pages 1009 to 1010, could be used to try to measure the actual voltage of the pulses applied to the electric fence.
  • this voltage measurement is only important for checking the condition of the fence if a direct comparison between the measured fence voltage and the fence voltage occurring during undisturbed normal operation of the fence could be made. the latter necessary for this comparison
  • the voltage value cannot be determined with such voltage measuring devices.
  • the object of the invention is therefore to equip an electric fence device of the type specified at the outset with testing and monitoring devices for the impedance of the connected electric fence, which at any time, at short notice or in short time intervals or at all constantly determine the pulse voltage developed by the electrical pulses on the electric fence, with a Compare the reference size and have it ready for viewing at any time or report it at any time.
  • This reference can be based on the impedance of the undisturbed electric fence. This can be done, for example, before putting the fully assembled electric fence into operation by placing pulses on the fence with the electric fence device, as are also intended for operation later, and storing the pulse voltage developed on the electric fence as a reference variable. This reference value can then expediently be determined and stored again even after the electrical fence has been inspected, for example removal of fouling, etc.
  • Another possibility for developing a reference quantity within the scope of the invention consists in that pulses with an increased internal impedance of the energizer are put on the fence a lower pulse voltage can be generated than with the pulses generated with low internal impedance of the pulse generator.
  • the difference in the pulse voltage developed on the electric fence under both conditions is thus a measure of the impedance currently prevailing on the electric fence.
  • a reference variable is thus provided which depends to an even greater extent on the impedance prevailing on the electric fence than the pulse voltage occurring during operation.
  • the testing and monitoring devices provided in the electric fence device can be designed in such a way that the switching of the pulse generator circuit arrangement to higher internal impedance and the switching back to low internal impedance takes place periodically by means of a timer and, together with this periodic switching, also the pulse voltage comparison is performed. Comparative results are then periodically available in the form of a periodic, continuous monitoring.
  • Circuit arrangements of various types can be provided within the scope of the invention for the generation of electrical pulses with a low and optionally increased internal impedance of the pulse generator.
  • additional electrical circuit parts which increase the internal impedance of the pulse generator circuit arrangement can be provided, which are in front of the voltage-side (hot output or optionally ground-side (cold) output of the energizer arranged, with a short-circuit bypass separable to check the current condition on the electric fence bypassed electrical resistance, preferably ohmic resistance, contain, the devices for actual value / reference value comparison behind this electrical resistance are connected to the hot side of the circuit output.
  • twin pulses are placed on the electric fence.
  • the one partial pulse of such twin pulses is then to be developed with a low internal impedance of the pulse generator and the second partial pulse with increased internal impedance of the pulse generator.
  • two pulse generator circuit arrangements one with a low internal impedance and one with a higher internal impedance, can also be provided and coupled to one another in order to deliver their pulses in immediate succession.
  • the temporal course of the pulse voltage generated with such twin pulses on the electric fence depends on the electrical impedance currently prevailing on the electric fence.
  • the temporal The course of the pulse voltage then already contains the actual value / reference value comparison and can be evaluated in the testing and monitoring devices of the electric fence device for monitoring the operating state of the electric fence.
  • testing and monitoring devices can be designed to switch on additional electrical circuit parts of the pulse generator or an additional pulse generator designed to generate amplified pulses as soon as and as long as the comparison value between the actual value and the reference variable or the averaged comparison value determined in the testing and monitoring devices exceeds a set or adjustable threshold.
  • the electric fence device represents a significant improvement in the use of electric pasture fences, since it enables a reliable display of the condition of the electric pasture fence on the electric fence device itself.
  • the farmer can see on a display device located on the electric fence unit or at another central location whether the electric electric fence is in good condition. Only if the farmer finds a deteriorating condition of the electric fence indicating that he will carry out an inspection of the electric fence, which may then require walking the entire electric fence.
  • the invention creates an electric fence device that can also be used for other applications or can be specially developed.
  • One such special purpose is the use of the energizer to operate Object protection electric fences.
  • Such object protection electric fences require on the one hand a high deterrent effect and stable pulse generation, ie that even with a deliberate earth fault, sufficiently strong pulses are still generated.
  • the object protection electric fence or the electric fence device used for its operation should react sensitively to those impedance changes which result from the approach of a person, an animal or an object to the object protection fence, in order to thereby actuate alarm devices and the like.
  • the devices for evaluating the comparison result of the actual value and the reference variable can be designed for storing and averaging a plurality of comparison values between the actual value and the reference variable which are developed one after the other in time. Such an averaged comparison value is then to be used for the display or the switching of connected devices. Short-term disturbances can be largely determined with such averaged comparison values render harmless.
  • the devices for evaluating the comparison result of the actual value and reference variable can also be designed to respond when the comparison value between the actual value and reference variable or the averaged comparison value is exceeded via a set or adjustable threshold value. This means that minor faults can be screened out effectively.
  • an electric fence device 10 is equipped with a pulse generator part 11 and a test and monitoring part 12.
  • the pulse generator part 11 contains two pulse generator circuit arrangements 13 and 14, of which the pulse generator circuit arrangement 13 is designed to emit pulses for normal operation, for example pulses with a pulse voltage of 3000 V to 5000 V, and is continuously switched on during operation.
  • the pulse generator circuit arrangement 14, on the other hand, is designed to generate amplified pulses, for example 6000 V to 8000 V, and is only switched on temporarily with the control system explained below.
  • Each of the two pulse generator circuit arrangements 13 and 14 has a isolating diode 15 at its voltage-side (hot) output, so that the two pulse generator circuit arrangements 13 and 14 can be connected in parallel with their corresponding outputs.
  • the test and monitoring part 12 contains a high-voltage connection 16 which is to be connected to the voltage-side (hot) output of the pulse generator part 11 and forms the connection for the electric fence 17. Furthermore, the test and monitoring part 12 has a second connection 18 which is to be connected to the second output of the test and monitoring part 12 and forms an earth connection.
  • the test and monitoring part 12 also contains an electrical, preferably electronic voltage measuring device 21 for the peak voltage generated with the applied electrical pulses on the electric fence 17, which is also referred to below as the pulse voltage.
  • the voltage measuring device 21 is electrically connected between the high-voltage connection 16 and the second connection 18 of the test and monitoring part 12.
  • a reference variable developing device 22 is connected to the voltage measuring device 21, which in this example is designed as a storage device for the pulse voltage value supplied by the voltage measuring device 21 and has an actuating element 23, for example a push-button. By actuating this actuating element 23, the reference variable developing device 22 is caused to store the pulse voltage value currently supplied by the voltage measuring device as a reference variable.
  • a memory and central computer 24 which always stores a number, for example 3 to 5, of pulse voltage values supplied in succession from the voltage measuring device 21 and forms an average pulse voltage value therefrom.
  • This average pulse voltage value is transferred to an electronic comparison device 25, which also receives the reference value stored in the reference variable development device 22 and compares it with the average pulse voltage value, preferably by forming a difference.
  • This comparison value is transferred to a threshold value comparison device 26.
  • the threshold value comparison device 26 If the comparison value supplied by the comparison device exceeds the threshold value stored in the threshold value comparison device 26, the threshold value comparison device 26 emits a signal to a display, registration and switching unit 27, which can contain display devices 28, a clock 29 and switches Switch-on signals to acoustic alarm devices 19, for example sirens, can give the headlights 20 illuminating the surroundings of the electric fence 17 and place a switch-on signal on the pulse generator circuit arrangement 14 for generating amplified pulses.
  • a display, registration and switching unit 27 which can contain display devices 28, a clock 29 and switches Switch-on signals to acoustic alarm devices 19, for example sirens, can give the headlights 20 illuminating the surroundings of the electric fence 17 and place a switch-on signal on the pulse generator circuit arrangement 14 for generating amplified pulses.
  • an electric fence device 10 For the operational preparation of an electric fence device 10 according to FIG. 1, after the electric fence 17 has been installed and connected to the high-voltage connection 16 of the test and monitoring part 12, start-up operation with the pulse generator circuit arrangement 13 is first initiated.
  • the actuating element 23 of the reference variable developing device 22 is actuated during this starting operation, so that the pulse voltage value resulting during this starting operation is stored as a reference variable in the reference variable developing device. With each inspection and in the area of the electric fence 17, this run-in operation is carried out again with the reference quantity for the pulse voltage value being stored again.
  • the electric fence device 10 according to FIG. 1 is particularly suitable for the operation of object protection electric fences. It offers the particular advantage that, in addition to alarms and illumination of the surroundings with headlights 20, any attempt to reduce the effectiveness of the electric fence 17 by short-circuiting or other measures is answered by the electric fence device 10 by emitting increased high-voltage pulses.
  • the electric energizer 10 contains in its pulse generator part 11 a pulse generator circuit arrangement 13 which is designed with a low internal electrical impedance. so that the pulses generated by the pulse generator circuit arrangement 13 used in the example in FIG. 2 have only a relatively small dependence on changes in impedance of the electric fence 17.
  • the test and monitoring part 12 of the electric fence device 10 according to FIG. 2 contains an impedance increasing unit 30, the impedance increasing circuit parts 31 of which are indicated in FIG. 2 as a series connection of electrical capacitor, coil and ohmic resistance. As a rule, only an ohmic resistance is provided as the circuit part which increases the impedance.
  • FIG. 1 As FIG.
  • the circuit parts 31 that increase the impedance are included bridged a separable short-circuit bypass 32.
  • the short-circuit bypass When the short-circuit bypass is closed, the test and monitoring part 12 at the high-voltage connection 16 has practically impedance-free passage from the pulse generator circuit arrangement 13 to the electric fence 17. If the short-circuit bypass 32 is disconnected, the internal impedance becomes in the test and monitoring part 12 of the electric fence unit 10 at the high-voltage connection 16 increased by the amount provided with the circuit parts 30 which increase the impedance.
  • the short-circuit bypass is opened and closed by means of a clock generator 33.
  • the test and monitoring part 12 also contains an electronic voltage measuring device 21 with a storage device for the measured pulse voltage values and a combined comparison and display device 34 with, for example, an optical display element 35.
  • the voltage measuring device 21 or combined comparison and display device 34 is also on the clock generator 33 is connected, so that it can be seen whether noticeably lower pulse voltage values are developed on the electric fence when the short-circuit bypass is opened than when the short-circuit bypass 32 is closed Signs that the electric fence has increased impedance due to vegetation or other influences and should be inspected.
  • the electric fence device 10 shown in FIG. 2 is particularly suitable for the operation of electric pasture fences.
  • FIG. 3 is an electric fence device 10, which is constructed on the same principle as the electric fence device according to FIG. It consists of a pulse generator part 11 with pulse generator circuit arrangement 13 and a test and monitoring part 12, an electric fence 17 is to be connected to its high-voltage connection 16, while the second, cold connection 18 is connected to earth.
  • the pulse generator circuit arrangement 13 is constructed in a manner known per se and is designed with a low internal electrical impedance
  • a capacitive voltage divider 35a, 35b is placed between the high-voltage connection 16 and the second, cold connection 18 of the test and monitoring part 12, and a glow lamp 36 is connected as a display element via its partial capacitance 35b.
  • the capacitive voltage divider 35a, 35b is set in such a way that the glow lamp 36 lights up for every pulse given to the electric fence 17 if the pulse voltage is above a reference value, for example of 2000 V. Since due to the low internal impedance of the pulse generator circuit 13 on the electric fence 17 occurring disturbances, such as touching the ground, vegetation, etc. do not lead to the pulse voltage falling below this reference value, the glow lamp 36 still lights up in time with the pulses delivered when the condition of the electric fence 17 is significantly disturbed.
  • an ohmic resistor 37 is connected between the hot output of the pulse generator circuit 13 and the high-voltage connection 16 of the test and monitoring part 12, which is bridged in operation with a switch in the manner of a short-circuit bypass 32.
  • the short-circuit bypass 32 is opened and thereby the ohmic resistance 37 is effective for increasing the internal impedance of the energizer 10. Faults occurring on the electric fence 17, such as contact with the ground, heavy growth and the like. then make themselves felt by a noticeable reduction in the electrical pulse voltage at the high-voltage connection 16.
  • the size of the ohmic resistor 37 is to be selected in view of the size of the insulation reductions which are still to be determined as a fault.
  • the ohmic resistor 37 can be adjustable in order to match it to the respective impedance of the electric fence 17 and the size of the insulation losses which are still to be determined.
  • the example in FIG. 4 is an electric fence device 10, the pulse generator part 11 of which contains a pulse generator circuit arrangement with a low internal impedance and can be connected to an electrical supply network.
  • the pulse generator circuit arrangement 13 can be designed in the same or a similar manner as in the example in FIG. 3.
  • an ohmic resistor 37 with a short-circuit Bypass 32 used in the manner of a switch to be opened with a test and control button 38.
  • the electric fence device 10 according to FIG. 4 is equipped with a plurality of display devices 40, 41, 42 for the electrical pulse voltage.
  • the display device 40 contains an electric glow lamp 36 with a varistor 39 and a controllable ohmic resistor 43 as additional series resistors. By means of these two series resistors 39 and 43, the voltage display device 40 is to be set such that it responds to a desired value of the pulse voltage which is matched to the impedance of the connected electric fence 17 and which can be, for example, between 3000 V and 4000 V.
  • the display device 41 can be set to a minimum pulse voltage, for example 2000 V, by means of a series resistor and a parallel resistor to the glow lamp 36.
  • the display device 42 is adjustable by means of an ohmic voltage divider 44a, 44b set to a response pulse voltage that is just below the normal pulse voltage that occurs when setting up the electric fence.
  • the ohmic voltage divider 44a, 44b is also connected upstream of an ohmic series resistor 45, which is normally bridged in operation by a switch 46 in the manner of a short-circuit bypass.
  • This switch 46 can be opened with a control button 47.
  • the electric energizer 10 according to FIG. 4 is provided with a capacitive base load 48, that is to say a high-voltage capacitor arranged between the high-voltage connection 16 and the cold connection 18 and additional capacitive loads 49 and 51 which can be inserted by means of control buttons 50 and 52.
  • the glow lamps of all three display devices 40, 41 and 42 light up.
  • the test and control button 38 has to be actuated and the short-circuit bypass 32 has to be opened. Due to the increase in the internal impedance of the electric fence device 10 due to the now effective ohmic resistance 37, the glow lamp of the display device 42 will no longer light up in the normal operating state of the electric fence. If the fence insulation is still permitted to be reduced, for example when the vegetation is so thick that it can still be overcome by the electric fence 17 during operation, the glow lamp of the display device 40 will no longer light up, but only the glow lamp of the display device 41. If the glow lamp of the display device 41 no longer lights up when the test button 38 is actuated, a greater insulation fault, for example touching the floor of the electric fence, is to be assumed, so that a control walk along the electric fence 17 is necessary.
  • the test button 47 is pressed in and the additional series resistor 45 in the display device 42 is thereby effective. If the glow lamp of the display device 42 then no longer lights up, it can be assumed that the fence has the impedance, in particular the capacitance, for which the display device 42 has been set. However, if the glow lamp 36 of the display device 42 continues to light up when the test and control button 47 is actuated, it can be assumed that the electric fence has a part of its impedance, i.e. has lost its capacity, i.e. has been torn down over part of its length. By pressing the test and control buttons 50 and 52, additional capacitive loads 49 and / or 51 can then be switched on in order to determine how large the capacity loss of the electric fence could be.
  • the pulse transformer 51 of the pulse generator circuit arrangement 13 is indicated in the interior of the four-pole representation of the pulse generator part 11.
  • the electric energizer 10 also contains a test and monitoring part 12 which, comparable to the example in FIG. 4, contains three display devices 40, 41, 42 for the pulse voltage, which are connected between the high-voltage connection 16 and the cold connection 18.
  • the display devices 41 and 42 are equipped with capacitive voltage dividers. Basically, however, the mode of operation of the display devices 40, 41 and 42 is the same as that of the corresponding display devices in the electric fence device according to FIG. 4.
  • FIG Primary side of the pulse transformer 40 arranged and accordingly indicated by the series connection of an inductor 54, an ohmic resistor 55 and a capacitor 56.
  • Each of these impedance parts is bridged by a short-circuit bypass 32.
  • Each short-circuit bypass 32 can be separated individually by means of test and control buttons 57, 58 and 59, so that the size and type of the additional internal impedance made effective in the circuit arrangement can be selected by selecting the operated control button or control buttons.
  • the electric fence device according to FIG. 6 can be connected to an electrical supply network and is provided in its pulse generator part 11 with an electrical pulse generator circuit arrangement 13 with low electrical impedance.
  • This pulse generator circuit arrangement 13 may be the same as or similar to that which is arranged in the electric fence device according to FIG. 3 or in the electric fence device according to FIG. 4.
  • a multi-stage capacitive voltage divider 35 is arranged between the high-voltage connection 16 and the cold connection 18 of the test and monitoring part 12 also provided in this example.
  • the number and the height of the stages provided in the capacitive voltage divider 35 are set up in such a way that when electrical pulses of maximum voltage are applied for which the pulse generator circuit arrangement 13 is designed, a minimum pulse voltage of approximately 2000 is set at the lowest stage of the capacitive voltage divider 35 V is tapped.
  • the LED diodes 60a, 60b, 60c, 60d and 60e applied to the stages of the capacitive voltage divider 35 via series resistors are matched to the fact that the last LED diode 60e still responds when the minimum pulse voltage is applied.
  • the LED diode 60a of the lowest stage no longer has the voltage required to respond to this LED diode. It is therefore no longer displayed on the LED diode 60a of the lowest level.
  • the last indicating LED diode 60a, 60b, 60c, 60d, 60e indicates the pulse voltage present at the high voltage connection of the energizer 10.
  • an adjustable marking element 61 is attached to the housing of the test and monitoring part 12, which the user sets when the electric fence device 10 is started up with a freshly set up electric fence.
  • a visual inspection as to whether the LED diode 60c provided with the marking still indicates. If a higher-level LED, such as LED 60d or LED 60e, is the last to indicate, this is a sign that there has been a significant reduction in insulation resistance on the electric fence. If the last indicating LED diode, for example the LED diode 60e, is several steps above the marked LED diode, then a control walk on the electric fence is necessary.
  • an LED diode appears as the last indicating LED diode which is adjacent to the marking LED diode
  • additional testing and control can be carried out by additionally increasing the internal impedance of the energizer 10.
  • an ohmic resistor 62 is inserted between the hot output of the pulse generator circuit arrangement and the high-voltage connection 16.
  • this ohmic resistor 62 can be particularly low-ohmic, since the row of connected to the capacitive voltage divider 35 LED diodes 60a to 60e gives a very sensitive display for the pulse voltage.
  • the ohmic resistor 62 is bridged with a short-circuit bypass 32, which short-circuit bypass 32 can be opened using the test button 38. If the opening and closing of the short-circuit bypass 32 results in considerable differences with respect to the last indicating LED diode, this suggests considerable insulation loss, for example due to heavy growth. If the actuation of the short-circuit bypass 32 makes practically no difference with regard to the last indicating LED diode or if the last indicating LED diode 60b belongs to a level which is below the marked LED diode 60c, then it can be concluded that the capacitive Load has become smaller, i.e. part of the electric fence has been torn off.
  • the pulse generator part 11 contains a pulse transformer 71 with a twin-side output on the high-voltage side, ie two essentially identical high-voltage windings 72a and 72b.
  • One high-voltage winding 72a is connected via an element which increases the internal impedance, for example an ohmic resistor 73 to the hot output 75 of the pulse generator part 11 and via a separating diode 74 to the high-voltage connection 16 of the test and monitoring part 12, while the second high-voltage winding a isolating diode 76 is connected to high-voltage connection 16.
  • Both high-voltage windings 72a and 72b are connected in parallel at the cold output 77.
  • This arrangement on the secondary side of the pulse transformer 71 generates a twin pulse 78, as shown in the right part of FIG.
  • the one partial pulse 78a which can also be shifted in phase by the element 73 which increases the internal impedance, adjoins the first pulse part 78b, which originates from the high-voltage winding 72b with a lower impedance.
  • a voltage comparison device 79 is provided in this example, which has an input the ohmic resistor 73, a second input to the voltage-side end of the high-voltage winding 72b and also to the cold connection 18 of the test and monitoring part 12.
  • an evaluation and display device 80 is connected to this voltage comparison device 79, which gives a display as soon as the two partial pulses 78a and 78b have substantially different pulse voltages, as is indicated, for example, in the interior of the voltage comparison device 79 in FIG. Since the partial pulse 78b generated in circuit parts of the pulse generator with a lower internal impedance responds only to a small extent to impedance changes, in particular loss of insulation of the electric fence 17, while the pulse part 78a generated in circuit parts with a higher internal impedance responds to it much more strongly, a much stronger damping of the partial impulse can be achieved 78a conclude that the impedance of the electric fence 17 has changed, in particular the insulation resistance has been reduced.
  • a display, registration and switching unit 27 as in the example of FIG. 1 could also be provided in the example of FIG. 7, so that in such a case the electric fence device could also be used for the operation of object protection electric fences.
  • the pulse generator part 11 contains two complete pulse generator circuit arrangements 13a and 13b, which preferably have the same structure.
  • the control of both pulse generator circuit arrangements 13a and 13b is set up in such a way that both devices are controlled in the same cycle, but with a slight delay, of the pulse generator circuit arrangement 13b for delivering a high-voltage pulse.
  • the one pulse generator circuit arrangement 13a is in turn via one which increases the internal impedance Element 73 and a separating diode 74 are connected to the hot output 75 of the pulse generator part 11, while the second pulse generator circuit arrangement 13b is only connected to the same output 75 via a separating diode 74.
  • both pulse generator circuit arrangements 13a and 13b are connected in parallel.
  • the testing and monitoring part 12 contains a voltage comparison device 79 and a display device 80.
  • twin pulses 78 are placed on the electric fence 17, the partial pulse 78a generated with a higher internal impedance being first and the partial pulse 78b generated with a lower internal impedance being second. With increased fence impedance or reduced fence insulation, the first partial pulse 78a is damped much more than the second partial pulse 78b, as indicated in FIG. 8 inside the voltage comparison device 79.
  • a display, registration and switching unit 27 according to FIG. 1 can also be provided in the example of FIG. 8 if the electric fence device according to FIG. 7 for the operation of object protection fences or for comparable use cases are to be used.
  • circuit parts which change the internal impedance of the electric fence device 10 are arranged on the high voltage side, this is indicated by way of example. It is also possible to arrange such circuit parts, which change the internal impedance of the energizer 10, at the cold output, which is generally to be connected to earth during operation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Catching Or Destruction (AREA)
  • Housing For Livestock And Birds (AREA)

Claims (17)

  1. Electrificateur pour appliquer des impulsions électriques à une clôture électrique à raccorder, qui est électriquement conductrice et isolée électriquement par rapport à la terre et dont l'impédance électrique est variable par des influences extérieures indésirées ou de nature aléatoire, avec coordination au système générateur d'impulsions électriques, prévu dans l'électrificateur, de dispositifs de contrôle et de surveillance de l'état de la clôture électrique,
    caractérisé en ce que les dispositifs de contrôle et de surveillance contiennent, en combinaison:
    - des parties de circuit électrique pour déterminer la valeur réelle de la tension électrique de crête d'impulsions électriques générées et appliquées à la clôture électrique sur la base d'une première impédance interne déterminée du système générateur d'impulsions,
    - des dispositifs pour former une grandeur de référence par la détermination d'une valeur réelle supplémentaire de la tension électrique de crête, due à des impulsions électriques appliquées à la clôture électrique et générées sur la base d'une seconde impédance interne déterminée, différente de la première, du système générateur d'impulsions, et
    - des dispositifs pour comparer la valeur réelle determinée, correspondant à la tension d'impulsion, avec cette grandeur de référence, ainsi que des dispositifs pour exploiter le résultat de la comparaison, tels que des dispositifs d'affichage, d'enregistrement, de déclenchement d'alarme et ainsi de suite.
  2. Electrificateur selon la revendication 1, caractérisé en ce que les dispositifs de contrôle et de surveillance (12) contiennent des dispositifs supplémentaires (24) pour mémoriser et pour établir la moyenne de plusieurs valeurs de comparaison formées l'une après l'autre, dans le temps, entre la valeur réelle et la grandeur de référence.
  3. Electrificateur selon la revendication 1 ou 2, caractérisé en ce que les dispositifs de contrôle et de surveillance (12) contiennent des dispositifs supplémentaires (26) destinés à réagir lorsque la valeur de comparaison entre la valeur réelle et la grandeur de référence, ou la valeur de comparaison moyenne, dépasse un seuil préréglé ou réglable.
  4. Electrificateur selon une des revendications 1 à 3, caractérisé en ce que les dispositifs de contrôle et de surveillance (12) peuvent être enclenchés à l'état actif pour fonctionner dans un mode de surveillance ininterompu.
  5. Electrificateur selon une des revendications 1 à 3, caractérisé en ce que les dispositifs de contrôle et de surveillance (12) peuvent périodiquement être enclenchés à l'état actif de façon temporaire au moyen d'un dispositif d'interrupteur commandé par une horloge (33).
  6. Electirificateur selon une des revendications 1 à 3, caractérisé en ce que les dispositifs de contrôle et de surveillance (12) peuvent être enclenchés à l'état actif, en vue d'un fonctionnement en mode de contrôle temporaire, au moyen d'un interrupteur (38; 57, 58, 59) à commande manuelle.
  7. Electrificateur selon une des revendications 1 à 6, caractérisé en ce que les dispositifs de contrôle et de surveillance (12) contiennent un montage électrique (22), pouvant être actionné sciemment par l'utilisateur, pour mémoriser une grandeur, correspondant à la valeur réelle de la tension d'impulsion existant à l'instant de l'actionnement, en tant que grandeur de référence à comparer avec la valeur réelle de la tension d'umpulsion déterminée consécutivement.
  8. Electrificateur selon une des revendications 1 à 6, caractérisé en ce que des parties de circuit (30, 37, 54, 53, 56) sont coordonnées au montage générateur d'impulsions (13) pour changer temporairement l'impédance interne et des dispositifs (40, 41, 42) sont prévus pour comparer les tensions d'impulsion établies sur la clôture électrique sous une impédance interne plus faible et sous une impédance interne plus élevée du montage générateur d'impulsions.
  9. Electrificateur selon la revendication 8, caractérisé en ce qu'il comprend des parties de circuit électrique supplémentaires (31, 37) augmentant l'impédance interne du montage générateur d'impulsions (13), qui comportent une résistance électrique, de préférence une résistance ohmique, placée devant la sortie côté tension (sortie chaude) ou, au choix, devant la sortie froide de l'électrificateur, et qui est shuntée par une dérivation de mise en court-circuit (32) susceptible d'être ouverte pour contrôler l'état instantané sur la clôture électrique, les dispositifs (34, 36, 40, 41, 42) pour effectuer la comparaison valeur réelle/grandeur de référence étant branchés derrière cette résistance électrique au côté chaud (borne de raccordement 16) de la sortie du montage.
  10. Electrificateur selon les revendications 5 et 9, caractérisé en ce que l'horloge (33) pour l'enclenchement des dispositifs de contrôle et de surveillance est connectée aux parties de circuit (30, 31) augmentant l'impédance interne, de manière que l'enclenchement de ces parties de circuit soit couplé à la délivrance d'une impulsion faisant suite à un nombre préfixé d'impulsions.
  11. Electrificateur selon la revendication 8, caractérisé en ce que les parties de circuit supplémentaires (54, 55, 56) pour augmenter l'impédance interne du montage générateur d'impulsions sont réalisées en deux ou davantage d'étages et sont enclenchables sélectivement pour l'un ou l'autre étage d'augmentation d'impédance.
  12. Electrificateur selon la revendication 10 ou 11, caractérisé en ce que des interrupteurs susceptibles d'être actionnés périodiquement, sont coordonnés aux parties de circuit supplémentaires pour augmenter l'impédance interne du montage générateur d'impulsions, interrupteurs qui sont actionnés pour différentes augmentations de l'impédance interne en liaison avec l'horloge pour la suite d'impulsions et en couplage avec des délivrances d'impulsions effectuées après la fin de groupes d'impulsions.
  13. Electrificateur selon une des revendications 1 à 6, caractérisé en ce que le montage générateur d'impulsions (13, 13a, 13) est réalisé pour la génération d'impulsions jumelées (78) constituées chacune d'une impulsion partielle (78b) délivrée sous une impédance électrique interne plus faible et d'une impulsion partielle (78a) délivrée sous une impédance électrique interne plus élevée, et que des dispositifs (7, 80) sont prévus pour comparer les tensions électriques d'impulsion établies sur la clôture électrique (17) par les impulsions partielles (78b) générées sous impédance interne plus faible avec celles établies par les impulsions partielles (78a) générées sous impédance interne plus élevée.
  14. Electrificateur selon la revendication 13, caractérisé en ce qu'il comprend un double montage générateur d'impulsions (13a, 13b) dont les parties sont mutuellement couplées pour délivrer chacune, successivement, une impulsion, l'un des montages générateurs d'impulsions (13b) étant réalisé pour délivrer des impulsions sous une plus faible impédance interne et des parties de circuit (73) pour créer une plus haute impédance interne étant coordonnées à l'autre montage générateur d'impulsions.
  15. Electrificateur selon une des revendications 1 à 14, caractérisé en ce que les dispositifs de contrôle et de surveillance (12) sont réalisés pour enclencher des parties de circuit électrique supplémentaires, du générateur d'impulsions ou d'un générateur d'impulsions supplémentaire (14), qui sont réalisées pour la génération d'impulsions renforcées, dès que et tant que la valeur de comparaison formée dans les dispositifs de contrôle et de surveillance (12) entre la valeur réelle et la grandeur de référence, ou la valeur de comparaison moyenne, dépasse un seuil réglé ou réglable.
  16. Electrificateur selon une des revendications 1 à 15, en particulier pour le raccordement d'une clôture électrique de pâturage, caractérisé en ce que les dispositifs (34; 80) pour comparer la valeur réelle de la tension d'impulsion avec la grandeur de référence, contiennent un dispositif d'affichage (35; 36; 40, 41, 42; 60) réagissant au dépassement d'un seuil réglé ou réglable pour la valeur de comparaison entre la valeur réelle et la grandeur de référence.
  17. Electrificateur selon une des revendications 1 à 15, en particulier pour le raccordement d'une clôture électrique de protection d'un site, caractérisé en ce qu'il comprend des dispositifs de contrôle et de surveillance (12) susceptibles d'être enclenchés à l'état actif de façon continue, en vue d'un mode de fonctionnement de surveillance ininterrompu, ainsi que des dispositifs supplémentaires (27) pour enclencher des dispositifs d'alarme (19, 20) en cas de dépassement d'un seuil réglé ou réglable pour la valeur de comparaison entre la valeur réelle et la grandeur de référence de la tension d'impulsion générée sur la clôture électrique (17).
EP85113357A 1984-10-25 1985-10-22 Dispositif pour clôture électrique Expired - Lifetime EP0179435B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85113357T ATE69905T1 (de) 1984-10-25 1985-10-22 Elektrozaungeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3439015A DE3439015A1 (de) 1984-10-25 1984-10-25 Elektrozaungeraet
DE3439015 1984-10-25

Publications (3)

Publication Number Publication Date
EP0179435A2 EP0179435A2 (fr) 1986-04-30
EP0179435A3 EP0179435A3 (en) 1988-07-13
EP0179435B1 true EP0179435B1 (fr) 1991-11-27

Family

ID=6248697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113357A Expired - Lifetime EP0179435B1 (fr) 1984-10-25 1985-10-22 Dispositif pour clôture électrique

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Country Link
EP (1) EP0179435B1 (fr)
AT (1) ATE69905T1 (fr)
DE (2) DE3439015A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115630A1 (de) * 1991-05-14 1992-11-19 Ako Werke Gmbh & Co Schaltungsanordnung zur ueberwachung eines weidezaunes
CN102722950A (zh) * 2012-06-28 2012-10-10 彭磊 一种电子围栏监控系统及定位的方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727787A1 (de) * 1987-08-20 1989-03-02 Horizont Geraetewerk Generator zur erzeugung von elektrozaunimpulsen
FR2654239B1 (fr) * 1989-11-06 1994-04-15 Serpe Iesm Procede pour la protection d'un site interdit contre des intrusions et systeme pour la mise en óoeuvre de ce procede.
FR2673020B1 (fr) * 1991-02-20 1995-05-19 Seroe Iesm Systeme pour la protection d'un site interdit contre des intrusions, comprenant une cloture electrifiee.
FR2859302B1 (fr) * 2003-08-27 2005-11-11 Serpe Iesm Soc D Etudes Et De Systeme de detection et de localisation de defaillances dans une cloture electrifiee
CN114333272B (zh) * 2021-12-23 2024-04-02 深圳市豪恩安全科技有限公司 一种高压脉冲高精度检测系统及方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000936A1 (fr) * 1980-08-29 1982-03-18 Begg G Systeme d'alarme pour barrieres electriques

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581299A (en) * 1968-11-19 1971-05-25 Flo Tronics Inc Electric fence charger having ground detector
DE2323212A1 (de) * 1973-05-09 1974-11-28 Utina Elektrowerk Gmbh Elektrozaungeraet
IT1210603B (it) * 1980-01-15 1989-09-14 Matsushita Electric Works Ltd Sistema avvisatore di intrusione

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000936A1 (fr) * 1980-08-29 1982-03-18 Begg G Systeme d'alarme pour barrieres electriques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115630A1 (de) * 1991-05-14 1992-11-19 Ako Werke Gmbh & Co Schaltungsanordnung zur ueberwachung eines weidezaunes
CN102722950A (zh) * 2012-06-28 2012-10-10 彭磊 一种电子围栏监控系统及定位的方法

Also Published As

Publication number Publication date
DE3584760D1 (de) 1992-01-09
DE3439015A1 (de) 1986-04-30
ATE69905T1 (de) 1991-12-15
EP0179435A3 (en) 1988-07-13
EP0179435A2 (fr) 1986-04-30
DE3439015C2 (fr) 1989-08-03

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