EP2135491A2 - Method for controlling an electric fence - Google Patents
Method for controlling an electric fenceInfo
- Publication number
- EP2135491A2 EP2135491A2 EP08761819A EP08761819A EP2135491A2 EP 2135491 A2 EP2135491 A2 EP 2135491A2 EP 08761819 A EP08761819 A EP 08761819A EP 08761819 A EP08761819 A EP 08761819A EP 2135491 A2 EP2135491 A2 EP 2135491A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- capacitor
- discharge
- energizer
- transformer
- delay
- 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.)
- Granted
Links
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05C—ELECTRIC CIRCUITS OR APPARATUS SPECIALLY DESIGNED FOR USE IN EQUIPMENT FOR KILLING, STUNNING, OR GUIDING LIVING BEINGS
- H05C1/00—Circuits or apparatus for generating electric shock effects
- H05C1/04—Circuits or apparatus for generating electric shock effects providing pulse voltages
Definitions
- the subject of the present invention is a method of controlling an electric fence energizer and an electric fence energizer for carrying out this method.
- Electric fences are intended to protect spaces, and especially fields, against the intrusion or the exit of an animal.
- the document WO 88/10059 describes a fence energizer an electrical device comprising two storage capacitors, the second capacitor being intended to be discharged when the energy delivered by the discharge of the first capacitor is no longer sufficient.
- WO 00/35253 proposes an electric fence energizer comprising one or more capacitors (s) whose charge level is controlled so that, when the rate of change of the equivalent resistance observed across the energizer takes a value greater than a predetermined threshold for a predetermined period, the charge level of the capacitor (s) is modified to increase the chances, for example, clearance of an entangled animal in the fence.
- the energizer described in this document has the disadvantage that the electronics required to manage the charge level of a capacitor is relatively expensive, to a lesser extent than that necessary to accurately monitor the rate of change. equivalent resistance.
- the change of the charge level does not make it possible to instantly modify the current pulse and can therefore only be applied to the following cycles.
- ABS accidents are accidents due to a particularly low value (well below 500 ⁇ and in some cases as low as 50 ⁇ ) of the body impedance of the victim, which is the case when the pulse is circulating. through the victim's head.
- patent FR 2 857 554 proposes an electric fence energizer controlled so that, when the equivalent resistance across the energizer is in the 'high impedance' zone (> 2000 ⁇ ) or in the 'low impedance' zone (500 to 2000 ⁇ ) the capacitor discharge is systematically interrupted to maintain a low energy pulse, and when the value of the equivalent resistance across the energizer is found for the first time in the 'ultra-low impedance' zone (0 to 500 ⁇ ), a delay is started during which the energy of the pulse remains unchanged, then, at the end of the delay, the energy of the discharge is increased.
- This control method makes it possible to cope with a possible progressive vegetative surge while reducing the risk of an accident when the drop in resistance is due to the unexpected contact of a person, with impulse passing through his head.
- the energizer described in this document has the disadvantage that the energy of the pulse, which is of the order of 500 mJ, is not always sufficient to ensure good guarding security in a 'high impedance' zone or 'low impedance' because the energy can be consumed in significant proportions because of the initial choice of a poor driver or the progressive appearance of losses 'series' (for example damage at the junctions, conductors and / or grounding).
- patent FR 2 818 868 proposes a controlled electrifier so that when the equivalent resistance across the energizer has fallen particularly low for being in the 'ultra-low impedance' zone, the energizer stores and delivers a very high energy pulse, then, when the equivalent resistance across the energizer suddenly rises back to the 'low impedance' zone or in the 'high impedance' zone, following for example the opening by a user of a barrier passage downstream on the enclosure, the energizer prevents the delivery of this pulse of too high energy.
- a pulse is prepared as a function of the equivalent resistance measured in the preceding cycle, and, when the energizer detects during the current cycle a power or a voltage greater than a predetermined limit depending on the equivalent resistance measured in the previous cycle. energizer blocks or derives part of the pulse of the current cycle.
- the type of accident against which this document seeks to combat is an accident where the human body presents a classical impedance. say greater than 500 Ohm.
- the electrifier control method described in this document does not reduce the risk of "abnormal" accident because it does not describe the detection of a decrease in equivalent resistance across the energizer.
- the preparation of an impulse as a function of the equivalent resistance measured in the previous cycle leads to a limitation of the available power, which can be detrimental in terms of guard security and / or economic optimization of the costs of the apparatus.
- the present invention aims to provide a method of controlling an electric fence energizer which avoids, or at least reduces, some of the aforementioned drawbacks, which allows to reduce the risk of an "abnormal" fatal accident - and / or a lesser degree of fainting - while maintaining maximum guard security, and offering the consumer a real choice by being simple to implement and economical.
- the invention also aims to propose an electric fence energizer adapted to implement the method.
- the subject of the invention is a method for controlling a periodic pulse electrical fence energizer comprising a first capacitor and at least one other capacitor, said first capacitor and said at least one other capacitor being capable of being discharged. almost simultaneously to the primary of a transformer of said energizer so as to form a macro-pulse from the point of view of an animal, characterized in that, for a series of cycles consecutive operation of the energizer or for all its cycles, it comprises the steps of: a) controlling the discharge of said first capacitor in the primary of said transformer, determining, from the discharge of said first capacitor, an estimate of the resistance equivalent to the terminals of the secondary of said transformer, and comparing the value of said equivalent resistance with a predetermined threshold, and b) as the value of said equivalent resistance is greater than said predetermined threshold, to control each cycle the discharge of said at least one other capacitor in the primary of said transformer, or c) as soon as the value of said equivalent resistance falls below said predetermined threshold, initiating a delay and preventing the discharge of all or part of said at
- step d) comprises a substep f) of completing said delay when said equivalent resistance returns to above said predetermined threshold.
- said energizer comprises adjustment means for adjusting the duration of said delay.
- said energizer comprises adjustment means for adjusting the value of said threshold.
- steps c) and d) are performed by not triggering the discharge of all or part of said at least one other capacitor.
- steps c) and d) are performed by deriving the discharge of all or part of said at least one other capacitor to a shunt. According to another embodiment of the invention, steps c) and d) are performed by interrupting the discharge of all or part of said at least one other capacitor.
- the portion of said at least one other capacitor may vary during one or more subsequent cycles of the delay (without ever returning to a situation where said at least one other capacitor would be fully discharged during one of the cycles of the delay).
- the invention also relates to a fence energizer comprising a first capacitor, at least one other capacitor, and an electronic control module capable of performing the steps of the control method.
- the energizer comprises one or more additional discharge capacitors (s) for which there is at least a range of equivalent resistors on which said additional discharge capacitors (s) are never allowed to discharge.
- said predetermined threshold is greater than 250 Ohm and less than 2000 Ohm.
- said predetermined threshold is substantially equal to 500 Ohm.
- FIG. 1 is a simplified schematic view of a known energizer
- FIG. 2 is a curve representing the various possible values for the energy of the pulse emitted by the energizer of FIG. 1 as a function of the equivalent resistance between its output terminals;
- FIG. 3 is a simplified schematic view of an energizer according to a first embodiment of the invention
- Figures 4a and 4b are block diagrams showing the steps of a "basic" control method and a "preferred" control method of the electric fence energizer of Figure 3
- FIG. 5 is a graph showing the various possible values for the energy of the pulse emitted by the energizer of FIG. 3 as a function of the equivalent resistance between its output terminals
- FIG. 6 is a simplified schematic view of an electric fence energizer according to a second embodiment of the invention.
- the energiser I A comprises a transformer whose primary 4 A is mounted between the input terminal 2 A and a common point 7 A - A set of storage capacitors C A, I to C A, n , n being an integer greater than or equal to 2, is connected in parallel between the common point 1 A and the input terminal
- a diode 8 is connected between terminals 2 A and 3 A, in a conventional manner for those skilled in the art, to protect the thyristor T A, i when the current is reversed in the LC circuit formed by the primary 4A and the capacitors CA, I to C A , ⁇ -
- the primary 4 A of the transformer is coupled, via a magnetic circuit 6 A , to the secondary 5 A of the transformer.
- the terminals of Release 9 A, 10 A of secondary 5A supply the conducting elements of the closure (not shown).
- Capacitors C A, I to C A, II are charged at the same voltage V c by several hundred volts by known means (not shown).
- a control pulse is applied on the gate GA , I of the thyristor T A , i, it becomes conductive and the capacitors C A, i to C A5H are discharged through the primary 4A of the transformer.
- a pulse then appears at the terminals of the secondary 5A .
- the energizer 1 A comprises an electronic control module (not shown) for triggering the thyristor T A, i by means of its trigger G A, i to control the discharge of capacitors C A) i CA , ⁇ -
- the energy E of the output pulse that is to say the energy delivered to each pulse by the energizer 1 A , varies according to the equivalent resistance.
- R present between the output terminals 9A and 10A-
- the equivalent resistance R is the resistance of the loopback circuit, that is to say the resistance corresponding to the various components of the combination of the fence, weeds and other "parallel” losses, of the animal and the return grounding and other “series” losses.
- "Parallel” losses are a consequence of the appearance of a loss of electrical resistance between the high voltage wire of the electric fence and the earth, for example due to vegetative pressure, tree limbs fallen on the ground. enclosures, insulators becoming progressively defective, increased humidity, etc.
- the energizer 1 A delivers the same pulses at each cycle that this that of the first second, the one after a minute or an hour, for example.
- an electric fencing energizer I B having two input terminals 2 B and 3 B connected to a known power supply circuit and not shown.
- a diode 8B is connected between terminals 2 and B 3 and B plays the same role as the diode 8 A of IA- Energizer
- the energizer 1B comprises a transformer whose primary winding 4 B is connected between the terminal of entry 2 B and a common point
- the capacitor C B , i and the subset of capacitors C Bj2 to C B, n are respectively connected in series with a diode D B, i and D B, 2> to prevent the capacitor C B, I and the subset of capacitors C B , 2 to C B , n can be unloaded into each other.
- the common point of the cathodes of the diodes D i and Bj D B 2 is connected firstly to the anode of the diode 8 and B on the other hand to the input terminal 3b.
- a thyristor T B In parallel with the primary 4B and the energy storage capacitor C Bj i is connected a thyristor T B) i with its trigger G B; i. Similarly, in parallel with the primary 4 B and subset of C ⁇ capacitors 2 -C BjI1 is connected a thyristor T B; 2 with its G Bj2 trigger. Between the common point 7 B of the capacitor C B, i and the capacitor subassembly C Bj2 to C B) I1 and the common point 11 B of the anodes of the thyristors T B> i and T B; 2 is mounted the primary 4 B of the transformer, which is coupled, via a magnetic circuit 6 B , to the secondary 5 B of the transformer. The output terminals 9 B , 10 B of the secondary 5 B feed the conductive elements of the fence.
- the capacitor C B) i and the subset of capacitors C B , 2 to C B> n are charged at the same voltage V c by several hundred volts by means known and not shown.
- the diodes D B ⁇ and D B; 2 ensure that the capacitor C B, i and the subset of capacitors C B , 2 to C ⁇ , n are loaded at the same voltage and that the capacitor C Bs i on one side and the subset of capacitors C B; 2 to C BjI1 of the other can be discharged separately without changing the state of the other remaining subset.
- the pulse across the secondary B is therefore a complex pulse consisting of a sequence of two successive individual pulses very close together or possibly partially superimposed.
- the energy of the complex impulse is the sum of the energies of the individual impulses.
- An individual pulse can have a duration of between a few hundred microseconds and 1 to 2 milliseconds.
- Physiological phenomena causes of the painful sensation felt by an animal when in contact with the fence wire, have response times of tens to hundreds of milliseconds. Consequently, as long as the total duration of the complex pulse is typically less than about 20 ms, the sensation felt by the animal is identical to that felt when it receives a single pulse whose energy is equal to the sum of the energies. individual pulses.
- the energizer 1 B comprises an electronic control module (not shown) for triggering each thyristor T B, i and T BI2 through its trigger G Bj i and G B) 2 to control the discharge, respectively, of the capacitor C B, i and the subset of capacitors C B; 2 to C B n .
- an electronic control module (not shown) for triggering each thyristor T B, i and T BI2 through its trigger G Bj i and G B) 2 to control the discharge, respectively, of the capacitor C B, i and the subset of capacitors C B; 2 to C B n .
- step 100 the method is initialized. Step 100 is performed periodically, the period being for example about a little more than one second. This step 100 is spread over most of the period and allows the capacitor C B, i and the subset of capacitors C B, 2 to C B, ⁇ to recharge. The subsequent steps of the process are very little spread over time because the standard applicable to closing electrifiers generally limits the duration of a complex pulse to a maximum of 10 ms and requires a difference of at least one second between two complex impulses.
- the electronic module controls the discharge of the first capacitor C B, I in the primary 4 B.
- step 102 the electronic module determines an estimate of the equivalent electrical resistance R t at the terminals 9 B , 10 B of the secondary B.
- the first capacitor C B, i thus serves as a "pilot fish" for determining the resistance R t at the terminals 9 B , 10 B of the secondary B.
- the upward crossing of a predefined energy threshold is not equivalent to the downward crossing of a predefined resistance threshold R 0 .
- the peak voltage of the energizer output discharge pulse has overshoots depending on the more or less significant presence of imaginary components in the equivalent complex impedance at the terminals%, 10 B of the secondary B , it is preferable not to assimilate too roughly a recoil under a predefined limit of voltage at a passage below the threshold R 0 .
- the determination or estimation of the resistance R t is carried out as described in the document FR 2 863 816. Such a determination is economical and relatively reliable.
- step 103 the electronic module tests a current timing condition which is verified when a timer has been started during a previous pass in step 107. When the condition is verified, the process proceeds to step 112 otherwise the process proceeds to step 104.
- step 104 the electronic module tests the condition "Since the last delay , R t is (it) raised above R 0 C?) ". This condition is explained in the following way: since the last triggering of a timer, has the value of R t become greater than R 0 (even transiently).
- the process proceeds to step 105, otherwise the process proceeds to step 109.
- step 105 the electronic module tests a sufficient resistance condition which is verified when the resistance R t determined in step 102 is greater than the threshold R 0 .
- the process proceeds to step 106, otherwise the process proceeds to step 107.
- the process proceeds to step 106.
- step 106 the electronic module controls the discharge of the subset of capacitors C B , 2 to C B , n - Step 106 is performed almost simultaneously in step 101 so that the complex pulse is felt by the animal as a single impulse, as described above.
- step 106 the process returns to step 100.
- the cycle K t as described corresponds to the most frequent operation of the energizer 1 B , that is to say the operation of the energizer 1 B on a good or a poor fence of reasonable size and not completely invaded by vegetation: the resistance R t is then above the critical threshold R 0 . Steps 100 to 106 are thus executed at each cycle K as long as the resistance R remains greater than the threshold R 0 .
- the energizer I B delivers a pulse I whose energy is equal to several Joules in 'low impedance' zone, the energy can even approach the conventional value of 5 Joules provided that the characteristics of the capacitors C B , i to C B , n and transformer allow, and that any conditions set by the standard on the corresponding impedance area are met.
- step 105 it is now considered that, for example, at cycle K t + 5 , the sufficient resistance condition of step 105 is no longer satisfied, that is to say that the resistance R t has just passed below the threshold critical R 0 , and the method therefore goes to step 107.
- the electronic module starts a timer.
- the time delay has a predetermined duration, which corresponds to an integer N greater than or possibly equal to 1 of cycles K.
- the number N corresponds to a number of cycles subsequent to the current cycle. They will allow a person possibly under the influence of alcohol or drugs or limited in his recoil capacity and receiving the current impulse through the head (so likely to be partially stunned) of withdraw with less pain and therefore less panic, from the fence.
- a value of N equivalent to at least one minute is preferably contemplated but smaller or larger values of N may be chosen.
- step 108 the electronic module prevents the discharge of all or part of the subset of capacitors C B , 2 to C B , n in the primary 4 B , for example by controlling the non-triggering of the discharge of the sub-unit.
- the discharge, or part of the discharge, of the subset of capacitors C B; 2 to C B; I1 is derived in a shunt (not shown), or is interrupted. Such an interruption can be achieved for example by an electronic sub-circuit based on IGBT (not shown in Figure 3) instead of the thyristor T 5 ⁇ .
- This step makes it possible to decrease the energy of the current pulse I t + 5 .
- the adaptation of the energy of the pulse I 5 here the pulse I t + 5 is carried out instantaneously in real time, that is to say that the electronic module prevents the discharge of the subset capacitors C B, 2 to C B, n in the current cycle itself, here the cycle K t + 5 , in which the crossing of the threshold R 0 has been detected.
- step 103 At the K t + 6 cycle, the condition of step 103 is checked, since a timer has been started at cycle K t + 5 when going to step 107. The process therefore proceeds to step 112.
- step 112 the electronic module tests a completed delay condition which is verified when the expected duration for the delay, corresponding to the number N of cycles, has elapsed. When the condition is satisfied, the process resumes at step 104, otherwise the process proceeds to step 113.
- N 2 is considered.
- the timer has been started at cycle K t + 5 , so at cycle K t + 6 the condition of step 112 is not checked and the process proceeds to step 113.
- the electronic module prevents the discharge of all or part of the subset of capacitors C B, 2 to C B, ⁇ in the primary 4 ⁇ .
- step 113 has been performed, the process returns to step 100.
- cycle K t + 7 it is considered that the condition of step 112 is verified and the method therefore resumes at step 104.
- step 109 It is assumed then that, for example, never since the start of the delay at cycle K t + 5 the equivalent resistance observed at step 102 at each successive cycle has not risen above the threshold R 0 , then we go to step 109.
- step 109 the electronic module controls the discharge of the subset of capacitors C B , 2 to C B , n -
- step 109 is performed from almost simultaneously at step 101 so that the complex pulse is felt by the animal as a single pulse.
- the process returns to step 100. And for subsequent cycles, as long as the equivalent resistance R does not rise above R 0 - for example, as long as the vegetation does not decrease with return of cold seasons -, the process continues to loop through steps 100 to 104 then 109.
- the pulse in the range of low impedances, the pulse can be reduced or not depending on whether one is in the case where the impedance "becomes" below the threshold R 0 or not.
- the pulse when the impedance becomes lower than the threshold R 0 the pulse is reduced, but when the impedance remains below the threshold Ro for a predetermined time, the pulse is increased again.
- the purpose of the "basic" process is therefore to provide a lower cost for personal safety when an accident risk has been detected and to optimize safety when the risk of accidents is lower.
- step 110 We thus place our directly in the cycle K t + 6 , where the condition of the step 103 is verified, since a delay has been started at the cycle K t + 5 during the transition to step 107. The process therefore proceeds to step 110.
- step 110 the electronic module tests a sufficient resistance condition which is verified when the resistance R determined in step 102, here the resistance R t + 6 , is greater than the threshold R 0 .
- This step is similar to step 105.
- the process proceeds to step 111, otherwise the process proceeds to step 112.
- step 110 it is considered that, at the cycle K t + 6 , the sufficient resistance condition of step 110 is not satisfied and the method therefore proceeds to step 112 and, shortly thereafter, is resumed at step 104 or go to step 113, both already described.
- step 107 of the cycle K t + i 0 the current timing condition is checked and the method proceeds to step 110.
- step 110 the condition of sufficient strength is checked. In this case, the process proceeds to step 111.
- step 111 the electronic module controls the stopping of the timer and the process then proceeds to step 112 already described.
- the discharge of the subset of capacitors C ⁇ , 2 to C B, ⁇ is again allowed, that is to say that the energizer 1B is again in "classic” operation, which instantly reduces the guard security to its highest possible level.
- Step 111 is therefore, for example, performed following the contact of a human body of very low impedance with the electric fence followed by a rapid withdrawal, or following a fluctuation of R in the vicinity of the threshold R 0 due to Parallel losses unstable as often in the presence of wind. It should be noted, however, that if the vegetation continues to progress, the crossing of the R 0 threshold will become straightforward and a complete delay will finally succeed: the guard security can then take precedence.
- the "preferred" method of control is intended to privilege the safety of persons when an accident risk has been detected and to maximize guard security in all other cases, especially from the first. cycle or it is detected that the initially proven risk of accident has become less.
- the energy E delivered to each pulse by the energizer 1 B varies, on the one hand, as a function of the equivalent resistance R, and, on the other hand, for the resistances less than R 0 , as a function of time.
- the energy E of the pulses differs indeed in this case depending on whether or not one is in the delay period.
- the energy E is momentarily restricted to that of a significantly less powerful electrifier than could be delivered if all the capacitors C B, I to C B5H were discharged, and out of the time delay, for any value of the resistance R, the energy E is nominal.
- the energizer 1 B can therefore provide two very distinct output pulses depending on whether one is in the delay period or not. Except during the delay, the energy of the pulse is that resulting from the discharge of all the capacitors present in the energizer which gives the invention its optimal safety / cost ratio.
- the threshold R 0 may have been programmed by the manufacturer of the energizer or be registered by the user using adjustment means known to those skilled in the art (keyboard, screen, for example. ).
- the electrifcator may comprise adjustment means (not shown) of the timer allowing a user to choose a new duration thereof.
- Threshold R 05 is typically, but not necessarily, less than 2000 Ohm and should preferably be equal to or of the order of 500 ⁇ . Note that the threshold R 0 may nevertheless be chosen higher or lower, for example 400 ⁇ or 250 ⁇ , so that the timing is not launched unnecessarily at each contact of an animal with the fence while the risk of "abnormal" accident is not proven.
- the values mentioned for the threshold R 0 can be adapted according to the type of animal mainly kept, the type of enclosure envisaged, the technological choices retained for the characteristics of the capacitors C B , I to C B , n and the transformer, for example.
- the values mentioned for the threshold R 0 are therefore not limiting.
- the capacitor "pilot fish” Ci is chosen to, during a delay, maximize the safety of custody while remaining reasonable in terms of risk, that is to say by preventing a fatal accident "unnatural".
- the decrease of the energy of the pulse during this phase must be clear, for example at least 20% and preferably 50%, with respect to the "normal" pulse that would have been generated if the number of capacitors had not been momentarily reduced. This impulse must nevertheless remain strong enough to limit at best the problems of security of custody.
- the capacitor "pilot fish” Ci is for example chosen to allow a discharge of the order of 1 or 2 Joules.
- a contact of a human body of too low impedance on the electric fence does not present a risk of being lethal or excessive risk of fading.
- the shock if it triggers the delay is indeed limited to the power of the discharge pulse of the "pilot fish" C B, i- Note that the longer the delay is longer the safety of people is high (without the security of guard being considerably reduced because animals already trained at the electric fence respect it for a long time even if its power is temporarily reduced).
- FIG. 6 illustrates a second embodiment of the invention.
- the elements of the electrode 1c identical to the first embodiment are designated by the same reference numeral and are not described again.
- the capacitor C B, i is replaced by the combination of two capacitors C'c , i and C " c, i intended to be triggered simultaneously by the same thyristor T c, i, or alternatively (not shown) by
- the capacitors of the capacitor subassembly Cc , 2 to Cc , n are controlled by several thyristors T C) 2 to T Cjn
- the use of several thyristors T c, 2 to T c, n allows to vary the number of capacitors Cc , 2 to Cc, n during one or more cycles of the timer. Note that in this case at least one capacitor of the subset of capacitors C Q2 to Cc, ⁇ is not discharged during each cycle of the timer (but it is not necessarily always the same that is not discharged ).
- the energizer Ic comprises one or more additional capacitors Cc , x to Cc , z whose discharge in the primary (4) of said transformer is controlled, by means of one (or more), thyristor (s) T Cx (to possibly Tc 2 ) under certain conditions of equivalent resistance R and only outside the delay period.
- the discharge of the capacitors C C, X to C c , z can be controlled systematically even during the time delay, or only for certain given cycles (1 cycle on N, sequence of random cycles, prerecorded series of cycles, by example.) of the delay and / or post-delay.
- IGBT can be controlled the interruption of the discharge, or part of the discharge, the capacitor C ⁇ and / or part of the subset of capacitors C 2 to C n and / or capacitors C x to C z .
- the charge rate of the capacitor Ci and / or a portion of the subset of capacitors C 2 to C n and / or capacitors C x to C z can also be controlled, in addition to the control of the discharge. , for some or all possible values of the resistance R, and / or during, or excluding, the time delay, or for any other possible reason such as for example a random function to each cycle, or the state of the power supply of the energizer, for example.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Insects & Arthropods (AREA)
- Catching Or Destruction (AREA)
- Testing Relating To Insulation (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Road Signs Or Road Markings (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Protection Of Transformers (AREA)
- Electrotherapy Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0700875A FR2912278A1 (en) | 2007-02-07 | 2007-02-07 | Electrifier controlling method for electric fence, involves controlling discharge of storage capacitor in primary winding of transformer if triggering is completed as long as delay is not triggered |
PCT/FR2008/000111 WO2008110684A2 (en) | 2007-02-07 | 2008-01-30 | Method for controlling an electric fence |
Publications (2)
Publication Number | Publication Date |
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EP2135491A2 true EP2135491A2 (en) | 2009-12-23 |
EP2135491B1 EP2135491B1 (en) | 2010-08-04 |
Family
ID=38521248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08761819A Active EP2135491B1 (en) | 2007-02-07 | 2008-01-30 | Method for controlling an electric fence |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2135491B1 (en) |
AT (1) | ATE476858T1 (en) |
DE (1) | DE602008002068D1 (en) |
FR (1) | FR2912278A1 (en) |
WO (1) | WO2008110684A2 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ272112A (en) * | 1995-05-12 | 1997-10-24 | Stafix Electric Fencing Ltd | Electric fence pulse generator: pulse height maintained while duration varied according to fence load |
AU1420000A (en) * | 1998-12-08 | 2000-06-26 | Gallagher Group Limited | Improvement to electric fence energisers |
NZ509061A (en) * | 2000-12-21 | 2003-04-29 | Tru Test Ltd | Output protected electric fence energiser |
NZ535719A (en) * | 2004-10-04 | 2007-06-29 | Tru Test Ltd | A transformerless semiconductor switched electric fence energiser charging capacitors in parallel & discharging in series |
-
2007
- 2007-02-07 FR FR0700875A patent/FR2912278A1/en not_active Withdrawn
-
2008
- 2008-01-30 DE DE602008002068T patent/DE602008002068D1/en active Active
- 2008-01-30 EP EP08761819A patent/EP2135491B1/en active Active
- 2008-01-30 WO PCT/FR2008/000111 patent/WO2008110684A2/en active Application Filing
- 2008-01-30 AT AT08761819T patent/ATE476858T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2008110684A3 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008110684A2 (en) | 2008-09-18 |
DE602008002068D1 (en) | 2010-09-16 |
WO2008110684A3 (en) | 2008-11-06 |
EP2135491B1 (en) | 2010-08-04 |
ATE476858T1 (en) | 2010-08-15 |
FR2912278A1 (en) | 2008-08-08 |
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