EP3619496A1 - Elektronische sicherungsvorrichtung - Google Patents
Elektronische sicherungsvorrichtungInfo
- Publication number
- EP3619496A1 EP3619496A1 EP18719841.1A EP18719841A EP3619496A1 EP 3619496 A1 EP3619496 A1 EP 3619496A1 EP 18719841 A EP18719841 A EP 18719841A EP 3619496 A1 EP3619496 A1 EP 3619496A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- logic
- switch
- power supply
- load
- electronic
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/44—Arrangements for disarming, or for rendering harmless, fuzes after arming, e.g. after launch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/40—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically
Definitions
- the present invention relates to an electronic security device for electronic load securing devices.
- an electronic load should be safely activated for a certain time and then the power supply for the electronic load should be safely deactivated, so that no follow-up activations are possible.
- the present invention is suitable for detonators for ammunition and pyrotechnic projectiles.
- the load is the detonator of the ammunition or the pyrotechnic active body.
- WO 2016/026640 A2 a safety device is known in which an activation signal is evaluated in order to connect the energy supply to the load by means of a processor. The processor then ensures that after a certain time the power supply is disconnected from the load again.
- Object of the present invention is therefore to show a safety device that allows the safest possible ignition of the load and after ignition safely disconnects the power supply from the load, so that no further ignition operations can be triggered. It is likewise an object of the present invention to reliably detect an ignition signal and to distinguish it from possibly occurring interference signals.
- the electronic security device for an electronic load consists of a power supply, which can supply the safety device and the load with energy. Since it is an electronic safety device, the safety device must be supplied by itself via the power supply and it is still appropriate to use the same energy supply for the supply of the load. In this case, the load is an electronic load. It is also conceivable to carry out the power supply as another energy source, for example a pressure tank for pneumatic control systems or a hydraulic tank for hydraulic control systems, but preference is given to an electrical power supply.
- the electronic security device further includes a time delay, which ensures that an incoming ignition signal must be present for a certain time in order to be processed uniquely as an ignition signal. Faster pulses, or smaller signals are detected by the time delay and, because they were not detected as an ignition signal, not to connect the energy to the load.
- an operating switch is provided and a programmable logic.
- the operating switch ensures that the power supply to the programmable logic is switched on and the programmable logic can be activated with it. Without switching the energy on the logic by means of the operating switch, the programmable logic is in a deactivated state and thus at rest.
- the time delay is now provided with an input via which signals of the time delay can be supplied. Also, these signals are preferably electronic signals, but also here other forms of signal may be conceivable.
- the time delay now recognizes when the input signal is present for a certain time that this is to be the activation signal for the load and, upon detection of the activation signal, activates the operating switch, which then switches the power supply to the programmable logic. When the power supply to the programmable logic is concerned this is activated and is integrated into the electronic safety device so that it can connect the power supply to the load.
- the programmable logic may control a first logic switch and thus turn it on or off.
- This first logic switch is now able to switch the operating switch. This means that the activated logic can switch off the operating switch via the first logic switch and thus can interrupt the energy supply of the energy supply to the logic. The programmable logic can thereby deactivate itself.
- the programmable logic is programmed to turn off the first logic switch as well as supply power to the load. Likewise, it can interrupt the power supply from the load.
- the logic is designed programmable, so that the time in which the load is supplied with energy, is freely selectable. After this time, then the power supply is disconnected from the load again and the power switch is turned off, so that the programmable logic is disabled.
- a circuit breaker is required, which can also be controlled by the processor.
- the safety device To ensure proper functioning of the safety device, make sure that the power supply is disconnected from the load when the processor is disabled. Furthermore, it must be ensured that the operating switch can be switched on at any time to activate the programmable logic. Upon activation of the programmable logic, the first logic switch must be safely turned on, so that the programmable logic is not immediately disabled again. It must also be ensured by the programmable logic that no switching operations are carried out after it has been deactivated, because this is the only way to ensure that the first logic switch remains switched and the operating switch can not be switched on a second time.
- the switches that is to say the operating switch, the first logic switch and the power switch, also be implemented electronically.
- the operating switch as a thyristor and the first logic switch and the power switch as a field effect transistor.
- the field-effect transistors ensure that switching is safe and there is no state between switching on and off, with simultaneous low power consumption.
- the signal which is to lead to the connection of the power supply to the load supplied by a sensor of the time delay.
- This sensor can be tailored to the requirements of the application of the electronic security device and can be a piezo sensor, a Hall sensor, but also a pressure sensor or set-back generator.
- a second logic switch is provided, which is arranged between the operating switch and programmable logic. This makes it possible to supply the programmable logic more defined with the power supply, since the logic switch does not have the transistor characteristic. In this case, the operation switch controls the second logic switch so that the programmable logic can be powered via the second logic switch.
- an energy limit is provided by which the energy of the power supply to the load is limited.
- the present invention fulfills by the double security corresponding standards for securing devices of igniters and is thus preferably used for electronic detonators.
- the function is further claimed by the independent claim 9, namely an electronic security method by means of an electronic security device, wherein first a signal to turn on the energy by the power supply to the load activates the time delay, wherein the activated time delay means of the operating switch, the energy of the power supply with the Logic connects and so activates the logic.
- the activated logic in turn switches the circuit breaker and thus connects the energy of the power supply to the load for a predefined time. After expiration of the predefined time, the logic disconnects the energy of the power supply from the load by means of the circuit breaker and switches the first logic switch to switch off after the predefined time has expired Time over this to switch the operating switch so that the logic is disconnected from the power supply and thus deactivated.
- a corresponding signal is thus supplied to the time delay and is intended to ensure that the safety device switches on the energy of the energy supply to the load. Due to the time delay, the signal must be present for a certain time, so that the activated time delay by means of the operating switch connects the energy of the power supply to the logic. So after a certain time of the signal has been detected with the time delay, the time delay activates the operating switch and this switches the power supply to the logic.
- the logic is activated and starts the programmable logic program.
- the logic is connected to a circuit breaker and can switch this.
- the logic is connected to a first logic switch and can also switch this. Switching the circuit breaker connects the energy of the power supply to the load. The load is activated with it.
- the program in the programmable logic is designed so that the circuit breaker only stays on for a certain time. After this time, the circuit breaker is turned off again and thus the energy of the power supply is disconnected from the load again. Also, the first logic switch is switched and causes the operation switch is turned off. Turning off the power switch disconnects the logic from the power supply and disables it.
- the signal over which the time delay is activated is preferably generated via a sensor.
- an input switch between the sensor and the time delay is provided, which switches only from a certain signal strength of the signal and thus signals under the specific signal strength can be filtered out.
- the time during which the programmable logic connects the power supply to the load and the time of the activated logic is freely definable and can be programmed via a program in the programmable logic.
- the circuit breaker interrupts the power supply to the load and the first logic switch connects the power supply to the operating switch so that it can switch the power supply to the logic at an applied signal. Only when the connection of the power supply has already taken place, the first logic switch must be kept off to prevent the restart of the operating switch.
- the above-mentioned double ignition safety of detonators is ensured in that only a defined ignition signal from possibly occurring interference signals can be filtered out and after a single ignition the interruption to igniter is so disrupted that no new ignition pulse can activate the programmable logic and so the load is activated again.
- Fig. 1 is a block diagram of a security device according to the invention.
- Fig. 2 is an exemplary electronic circuit diagram of a security device according to the invention.
- Fig. 1 shows the electronic security device 6 according to the invention for an electronic load 1 1.
- an LED is shown as an electronic load 1 1.
- the electronic security device 6 is powered by a battery as a power supply 2, wherein the power supply 2, the backup device 6 and the load 1 1 can provide energy.
- the electronic security device 6 is now designed so that it can turn on the energy of the power supply 2 to the load 1 1 for a certain time at an input signal. After this certain time then the energy of the power supply 2 is again separated from the load 1 1 and indeed permanently, so that no further signal can enable the connection of the power supply to the load 1 1.
- the input signal is detected by a sensor 1 and may be electronic, mechanical or electromagnetic nature. Also, a set-back generator, as it is known in ammunition and throwing bodies, can trigger such a signal.
- the signal of the sensor 1 is connected via an input switch 3 to a time delay 4.
- the input switch 3 ensures that only signals with a certain signal strength, or level, is recognized as an input signal.
- the time delay ensures that the signal passed through the input switch 3 must be present for a certain time in order to be evaluated as a corresponding signal.
- Noise or background noise is filtered out by the two elements, input switch 3 and time delay 4.
- the signal thus detected is supplied to a power switch 5, which ensures that the power supply 2 is connected via a second logic switch 8 to a programmable logic 9.
- the programmable logic 9 then executes the program contained therein upon application of the power by the power supply 2.
- the programmable logic 9 ensures that the energy of the power supply 2 is switched to the load 1 1 and includes the time function after which the load 1 1 is disconnected again from the power supply 2.
- the connection of the power supply 2 to the load 1 1 is done by a circuit breaker 10, which connects the power supply 2 with the load 1 1.
- a circuit breaker 10 which connects the power supply 2 with the load 1 1.
- an energy limit 12 which can limit the energy that is supplied to the load 1 1. This can for example be designed as a current limit.
- the energy limitation 12 ensures that no power peaks occur through the connection of the power supply 2 to the load 1 1 and thus the power supply 2 is unnecessarily burdened.
- the logic 9 controls a first power switch 7, which in turn interrupts the power supply 2 to the operation switch 5, whereby the operation switch 5 is turned off. As a result, the power supply 2 of the programmable logic 9 is interrupted, whereby the programmable logic 9 stops working.
- the power supply 2 to the operation switch 5 is interrupted so that it can not turn on again. Any occurring subsequent signals detected by the sensor 1, thus can no longer lead to turn on the power switch 5 and thus no longer to connect the power supply 2 to the load 1 1.
- FIG. 2 shows a possible electronic circuit in which the elements of the block diagram of FIG. 1 can be seen again.
- Four inputs can be seen on the left side, with the outer inputs representing the connections for the power supply 2 and the inner connections representing the inputs of the sensor 1.
- the power supply 2 thus supplies the entire electronic security device 6 with electrical energy.
- the input switch 3 switches and thus supplies the time delay 4 with electrical energy.
- Time delay 4 is implemented here as an RC combination so that the capacitor charges via the upstream resistors.
- the capacitor is provided with sufficient charge, there is a voltage at the input of the operating switch 5, which is designed as a thyristor. When a voltage at the thyristor is applied, it switches on and supplies the programmable logic 9 with electrical energy via the second logic switch 8.
- the programmable logic 9 in turn ensures that the power switch 10 switches and thus the energy of the power supply 2 to the load 1 1 passes.
- the two FET's which are provided as a circuit breaker, are turned off again, so that the power supply to the load 1 1 is interrupted.
- the programmable logic 9 interrupts the power supply of the operating switch 5, so that the thyristor no longer turns on. This results in a power interruption to the programmable logic 9, whereby the programmable logic 9 stops working.
- the last switched state is maintained, so that the operation switch 5 can not turn on again, since the power supply of the operation switch 5 is interrupted by the first logic switch 7.
- a second switching on the programmable logic 9 and thus switching on the power supply 2 to the load 1 1 is thus impossible.
- the present invention is not limited to the features described above, but other embodiments are conceivable.
- the programmable logic notes in its internal memory, that a switching operation has already been carried out and, due to this memorization, is likewise designed so that no further switching operation is carried out.
- the switches shown above can also be designed as electromechanical switches instead of field-effect transistors, for example as relays.
- a generator instead of a battery as a power supply, a generator may be provided.
- the time delay includes an energy storage, which takes over the power supply for the remaining function of the electronic security device. Due to the energy-saving design of the electronic security device, such a cache is sufficient for a short moment to supply the electronic security device.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Electronic Switches (AREA)
- Automotive Seat Belt Assembly (AREA)
- Relay Circuits (AREA)
- Safety Devices In Control Systems (AREA)
- Power Sources (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017109627.2A DE102017109627B4 (de) | 2017-05-04 | 2017-05-04 | Elektronische Sicherungsvorrichtung |
| PCT/EP2018/060279 WO2018202452A1 (de) | 2017-05-04 | 2018-04-23 | Elektronische sicherungsvorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3619496A1 true EP3619496A1 (de) | 2020-03-11 |
| EP3619496B1 EP3619496B1 (de) | 2022-07-27 |
Family
ID=62046920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18719841.1A Active EP3619496B1 (de) | 2017-05-04 | 2018-04-23 | Elektronische sicherungsvorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11231260B2 (de) |
| EP (1) | EP3619496B1 (de) |
| DE (1) | DE102017109627B4 (de) |
| WO (1) | WO2018202452A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3336534A1 (de) | 1983-10-07 | 1985-04-25 | Diehl GmbH & Co, 8500 Nürnberg | Elektronische zuendsteuerschaltung |
| US5157222A (en) * | 1989-10-10 | 1992-10-20 | Joanell Laboratories, Inc. | Pyrotechnic ignition apparatus and method |
| SE504627C2 (sv) | 1994-02-21 | 1997-03-17 | Bofors Ab | Förfarande för armering och arrangemant för genomförande av förfarandet |
| US6629498B1 (en) * | 2002-05-10 | 2003-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Proximity submunition fuze safety logic |
| US6966261B2 (en) | 2003-05-20 | 2005-11-22 | Alliant Techsystems Inc. | Fuze explosive ordnance disposal circuit |
| US8528478B2 (en) * | 2009-09-04 | 2013-09-10 | Raytheon Company | Safe arming system and method |
| DE102009058718B4 (de) | 2009-12-17 | 2011-12-08 | Junghans Microtec Gmbh | Sicherungseinrichtung für einen Zünder eines Geschosses |
| US9441896B2 (en) * | 2014-03-04 | 2016-09-13 | Robert M. Allan | Apparatus for firearm safety |
| DE102014111852A1 (de) | 2014-08-19 | 2016-02-25 | Rheinmetall Waffe Munition Gmbh | Leuchtspursatz für aus einer Rohrwaffe verschießbare Leuchtspurmunition |
-
2017
- 2017-05-04 DE DE102017109627.2A patent/DE102017109627B4/de not_active Expired - Fee Related
-
2018
- 2018-04-23 EP EP18719841.1A patent/EP3619496B1/de active Active
- 2018-04-23 WO PCT/EP2018/060279 patent/WO2018202452A1/de not_active Ceased
-
2019
- 2019-11-04 US US16/672,896 patent/US11231260B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3619496B1 (de) | 2022-07-27 |
| DE102017109627A1 (de) | 2018-11-08 |
| US11231260B2 (en) | 2022-01-25 |
| DE102017109627B4 (de) | 2022-08-04 |
| WO2018202452A1 (de) | 2018-11-08 |
| US20200064115A1 (en) | 2020-02-27 |
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