EP2415087A2 - Thermogenerator arrangement, thermal switch, and method for operating an electrical device - Google Patents
Thermogenerator arrangement, thermal switch, and method for operating an electrical deviceInfo
- Publication number
- EP2415087A2 EP2415087A2 EP10718505A EP10718505A EP2415087A2 EP 2415087 A2 EP2415087 A2 EP 2415087A2 EP 10718505 A EP10718505 A EP 10718505A EP 10718505 A EP10718505 A EP 10718505A EP 2415087 A2 EP2415087 A2 EP 2415087A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermal generator
- thermogeneratoranordnung
- state
- electrical signal
- fire
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000008859 change Effects 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 9
- 239000012782 phase change material Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 3
- 230000005678 Seebeck effect Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- -1 salt hydrates Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system
Definitions
- Thermoelectric generator assembly thermal switch and method of operating an electrical device
- the invention relates to a thermoelectric generator assembly according to claim 1, a thermal see switch according to claim 20 and a method for operating an electrical device according to claim 22.
- Thermogenerators utilizing the Seebeck effect when exposed to a temperature gradient, generate an electrical voltage, e.g. for operating an electrical device (e.g., a measuring device).
- the problem to be solved by the present invention is to provide a way to operate an electrical device as energy-saving as possible using a thermogenerator.
- thermogenerator arrangement having the features of claim 1
- thermal switch having the features of claim 20
- method having the features of claim 22.
- thermoelectric generator assembly is provided with
- Switching means by which the device is switchable from a first, energy-saving state to a second, active state; and - At least one thermal generator which generates an electrical signal at a temperature change in its environment, which is forwarded to the switching means, wherein
- the switching means are designed so that the switching of the device from the first, energy-saving state to the second, active state in response to the electrical signal of the thermal generator takes place.
- a thermal generator is a component which generates an electrical voltage by utilizing the Seebeck effect under the action of a temperature gradient.
- a temperature change i. an increase in temperature or -Verring für, in the environment of the thermogenerator a sufficient temperature gradient acts on the thermogenerator, structures of different heat capacity (thermal mass) are provided on the hot and the cold side in particular.
- thermogenerator With a temperature change in the environment, the temperature of the higher thermal capacity, more thermally-responsive structure will change more slowly than the temperature of the lower thermal-capacity structure.
- different thermal response of hot and cold side of the thermogenerator arises at a temperature change occurring in its environment, a temperature gradient.
- the thermal generator structures of different materials which have different specific heat capacities, and / or different mass may be provided.
- thermogenerator operates in particular energy self-sufficient, i. it does not require an energy source for operation, but rather is a purely passive component that only generates a voltage when a temperature gradient occurs.
- the electrically operable device is operated, in particular, via a voltage source (e.g., landline source or battery) separate from the thermogenerator, i. In its second, active state, the device draws the electrical energy necessary for the operation at least predominantly from the separate voltage source.
- a voltage source e.g., landline source or battery
- the electrically operable device can be switched from its first, energy-saving state to the second, active state, eg "woken up” from a rest state.
- “Energy-saving” means that the device consumes less electrical energy in the first state than in the second state Status,
- the "first, energy-saving state” is also understood as meaning an off or a stand-by state of the device, and the switching means can also serve to switch the device from the active state into the energy-saving state.
- the switching means are in particular designed such that they only switch the device between the first and the second state when the amount of the electrical signal transmitted to it by the thermal generator (ie the electrical voltage passed to it) exceeds a predefinable threshold value ,
- the switching means are realized in particular in the form of an electronic circuit and / or a program code which is executed on a programmable unit.
- the switching means are part of the electrically operable device.
- the thermal generator, the switching means and the device form a unit, for example, these components are integrated in a common housing or at least arranged on a common carrier.
- the electrically operable device is, for example, a hazard detector that alerts to imminent or acute danger situations, e.g. by generating an alarm signal.
- the hazard detector is a fire detector and / or burglar alarm.
- the electrically operable device may include an air pressure sensor, a humidity sensor, a temperature sensor, one or more gas sensors and / or a microprocessor.
- the invention is not fixed to a particular type of device, in addition to the mentioned are in principle any other electrically operable devices conceivable that are switched depending on the thermal generator voltage from an energy-saving state to an operating state.
- the device could itself be a temperature detection unit.
- the thermogenerator (in particular on its hot or cold side) with a structure for receiving body heat, in particular for placing a hand portion (eg a finger), thermally connected and designed so that it as a result of laying on the Hand section on the structure in its ambient temperature change generates an electrical voltage that switches the device via the switching means from the first state to the second state.
- the thermogenerator is thus designed in this embodiment as a manually operable thermal switch.
- a switch could be operated not only with a hand portion, but in principle with other areas of the human body.
- the structure for laying the finger may be made of copper or another good heat conductive metal, e.g. is thermally connected to a hot side of the thermogenerator.
- a heat sink for example in the form of a heat sink
- the largest possible temperature gradient arises in the area of the thermogenerator when the finger is placed on the finger.
- the thermal generator and the structure for placing a hand section are integrated in a door handle.
- the signal of the thermal generator is forwarded to the electrically operable device (for example one or more sockets or light sources) to be controlled by radio.
- the electrically operable device is e.g. for generating a (in particular electrical, acoustic and / or optical) alarm and / or control signal which is triggered in response to the electrical signal of the thermal generator.
- the thermogenerator effectively constitutes a detector which monitors its environment for a change in temperature and, upon occurrence of such, sends an electrical signal to the alarm device.
- the device Prior to the triggering of an alarm signal, the device is in its first, passive state and is set to the second, active state by the signal of the thermal generator in which it is e.g. First, it checks whether the signal transmitted by the thermal generator exceeds a predefinable threshold value. Depending on this test, the device then generates e.g. itself an audible and / or visual alarm signal or sends a corresponding control signal to a signal generator and / or to an alarm center.
- the alarm device first in response to a signal of the thermal generator, a (energy-consuming) measurement by means of another sensor activated and only depending on the result of this measurement triggers an alarm signal.
- Applications include the monitoring of cooling or heating devices, a room temperature and in particular fire protection, which will be discussed in more detail below.
- the electrically operable device comprises a fire detector for triggering an alarm signal.
- the thermal generator is designed and arranged so that it generates an electrical signal in the event of a fire in its surroundings, wherein the switching means switch the fire detector from the first state to the second, active state as a function of the electrical signal of the thermal generator.
- the thermogenerator thus has the function of a fire detector in this embodiment of the invention, which responds in particular to a rapid increase in temperature in its environment.
- the second, active state (alarm state), which the fire detector is set to with a corresponding signal from the thermal generator, does not necessarily mean that a human-perceptible alarm signal is generated immediately. Rather, the second state of the fire detector initially also consist in that it activates one or more other detectors, which check whether a fire has arisen in the vicinity of the fire alarm.
- this additional detector Only upon confirmation by this additional detector is then e.g. generates a light signal or an acoustic signal, for example from the fire detector itself or from a separate signal generator, which receives an electrical alarm signal from the fire alarm.
- the fire detector after detection of a fire by the additional detector sends a communication signal (by wire or by radio) to a fire alarm panel, which then generates an alarm signal.
- This alarm signal is in particular an optical / acoustic signal, an electrical signal to a signal generator and / or a communication signal to a rescue station (for example a fire brigade).
- the fire detector has a separate from the thermal generator energy source (for example in the form of a battery), which supplies the fire detector with electrical energy. It is also conceivable that the fire detector in the second state is additionally or exclusively operated by the electrical energy generated by the thermal generator.
- the electrical energy generated by the thermal generator can be used to the above-mentioned mentioned human-perceptible alarm signal generate, generate a corresponding control signal for triggering a human perceptible alarm signal and forward to a signal generator (or a control center) and / or activate further fire detectors of the fire alarm.
- the fire alarm - as already mentioned above additional means for detecting a fire, i.
- additional means for detecting a fire i.
- thermogenerator used as a fire detector further means for detecting a fire are provided. This makes it possible, for example, to reliably detect fires that are associated with only a slow increase in temperature (smoldering fires).
- the means for detecting a fire via activating means are activated at intervals to initiate a measurement for determining whether a fire exists in the vicinity of the fire detector, the time interval of the intermittently initiated measurements being compared to conventional fire detectors is chosen relatively large in order to minimize the energy consumption of the fire alarm. This is possible because flame fires that result in a rapid temperature change are detected by the thermogenerator and the additional means of detecting a fire are only for detecting slowly developing smoldering fires and otherwise only in the second state of the fire detector, i. after a signal from the thermal generator has arrived, be activated to verify the presence of a fire.
- the interval between two measurements made by the means for detecting the fire after activation by the activation means is at least 5 seconds, at least 10 seconds, at least 30 seconds, or at least 60 seconds.
- the detectors are activated approximately every 2s in order to detect even rapidly developing flame fires in time.
- the means for detecting a fire include, for example, a smoke sensor (for example a scattered light sensor, a transmitted light sensor and / or ionisation sensor) and / or a fire gas sensor.
- a temperature sensor element different from the thermogenerator could still be present, which in particular allows a measurement of the absolute temperature.
- the fire detector may have any known detectors in addition, for example, infrared or ultraviolet detectors that detect a temperature increase or a Flackerfrequenz the fire flame.
- a video camera could be used as a fire detector.
- the fire detector has an additional temperature sensor for measuring the absolute ambient temperature, then, for example, parallel to a scattered light measurement carried out a temperature measurement and an alarm is triggered at a temperature above a predetermined threshold temperature.
- the temperature measurements can be stored and compared, so that even slow temperature increases can be detected in a smoldering fire.
- thermogenerator and fire detector can be tested in particular by means of test gas, since the thermogenerator registers a drop in temperature due to the expansion of the gas and / or the evaporative cold occurring. If an optical sensor is additionally present, it would then be activated, for example, by the temperature change occurring at the thermogenerator.
- the thermal generator, the switching means and the fire detector form a common unit, for example, they are arranged in a common housing and / or on a common carrier.
- the electrically operable device is a burglar alarm system; e.g. also in combination with the fire detector described above.
- the device here comprises a structure-borne sound sensor, which can be switched from a passive to an active state via the switching means (that is, to a signal of the thermo generator).
- the structure-borne sound sensor on a door (such as a vault door) or a window can be arranged so that in a break-in attempt (such as drilling or sawing the door or window) resulting heat causes an electrical signal of the thermal generator, the sound detector (or a another sensor of the burglary alarm system) from an energy-saving, passive state "wakes".
- a break-in attempt such as drilling or sawing the door or window
- the sound detector or a another sensor of the burglary alarm system
- thermogenerator is a microfabricated (thin-film) device, although the invention is not limited to this type of thermo-generator.
- an electronic circuit can be provided which amplifies the electrical signal generated by the thermal generator.
- this circuit has at least one transistor, in particular a field effect transistor.
- the circuit may also be part of the switching means.
- the invention relates to a thermal switch having a thermal generator which generates an electrical signal under the action of a temperature gradient and whose cold side and / or hot side is thermally connected to a phase change material.
- a phase change material has the ability to absorb heat through a phase transition, such as latent heat, required for a transfer of the material from one physical state to another, especially from the solid to the liquid state.
- phase change materials are organic materials (eg sugar alcohols, paraffin waxes), salt solutions or salt hydrates.
- the invention relates to a method for operating an electrical device, comprising the steps:
- the FIGURE shows a thermo-generator arrangement with an electrically operable device in the form of a microcontroller 1, which has switching means in the form of a program code stored in the microcontroller, which can switch it from an active (second) state into an energy-saving first state or vice versa.
- thermoelectric generator arrangement has a thermoelectric generator 2, which is produced in particular by microtechnology, and which is electrically connected to an interrupt port 11 of the microcontroller 1, which is monitored by the program of the switching means.
- thermoelectric generator 2 On one side (for example, the warm side) of the thermal generator 2, a structure in the form of a copper plate 3 for laying a finger (or other hand portion) is provided. On the opposite side (cold side) of the thermal generator 2 is a heat sink, for example in the form of a rib heat sink.
- a temperature gradient which acts on the thermoelectric generator 2, whereby at this an electrical voltage is produced, for example, a voltage of at least 0.3 volts.
- This voltage is forwarded via a transistor circuit in the form of an FET circuit 5 to the interrupt port 1 1 of the microcontroller 1.
- the FET circuit 5 is used for
- thermo generator in particular when using a microtechnologically produced thermogenerator, the voltage generated by the thermal generator can be so high that it can be detected even without the FET circuit at the interrupt port 11. Thus, it is possible that the thermo generator signal is fed directly to the interrupt port 1 1 and is dispensed with a processing electronics. It is also conceivable to transform the voltage generated by the thermal generator to a higher voltage, wherein in particular the transistor circuit and the current source 52 can be dispensed with, so that the thermal generator operates in an energy-autonomous manner.
- thermogenerator 2 thus serves as a manually operable thermal switch for activating the microcontroller 1.
- the switch principle shown in the figure can of course be combined with other electrically operable devices, for example, with sockets or generally with electrical circuits whose energy-saving first state of Off state is and closed at the input of a forwarded from the thermal generator electrical signal, that is to be switched to the on state.
- the thermal switch with the components thermal generator 2, copper plate 3 and heat sink 4 can be used in this or similar form also to register a temperature increase in the vicinity of this arrangement.
- the copper plate and the heat sink are formed with very different heat capacities, so that when a temperature change in the environment of the thermal generator, for example, the copper plate reacts faster, i. heats up faster than the heat sink.
- thermogenerator assembly may also have more than one thermogenerator.
- a single thermal generator can control multiple electrical devices, such as multiple microcontrollers.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Central Heating Systems (AREA)
- Control Of Temperature (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910016154 DE102009016154A1 (en) | 2009-04-03 | 2009-04-03 | Thermoelectric generator assembly, thermal switch and method of operating an electrical device |
PCT/EP2010/054329 WO2010112554A2 (en) | 2009-04-03 | 2010-03-31 | Thermogenerator arrangement, thermal switch, and method for operating an electrical device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2415087A2 true EP2415087A2 (en) | 2012-02-08 |
Family
ID=42667913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10718505A Withdrawn EP2415087A2 (en) | 2009-04-03 | 2010-03-31 | Thermogenerator arrangement, thermal switch, and method for operating an electrical device |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120032527A1 (en) |
EP (1) | EP2415087A2 (en) |
DE (1) | DE102009016154A1 (en) |
WO (1) | WO2010112554A2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5640800B2 (en) * | 2011-02-21 | 2014-12-17 | ソニー株式会社 | Wireless power supply apparatus and wireless power supply method |
DE102011001774A1 (en) * | 2011-04-04 | 2012-10-04 | Unitronic Ag | Sensor device for reporting existing gas |
DE102012214468A1 (en) | 2012-08-14 | 2014-02-20 | Albert-Ludwigs-Universität Freiburg | AUTARKE SENSOR UNIT FOR SOLAR MODULES |
EP2790474B1 (en) | 2013-04-09 | 2016-03-16 | Harman Becker Automotive Systems GmbH | Thermoelectric cooler/heater integrated in printed circuit board |
US10592306B2 (en) | 2014-10-03 | 2020-03-17 | Tyco Safety Products Canada Ltd. | Method and apparatus for resource balancing in an automation and alarm architecture |
US10803720B2 (en) | 2014-08-13 | 2020-10-13 | Tyco Safety Products Canada Ltd. | Intelligent smoke sensor with audio-video verification |
US10084638B2 (en) | 2014-08-13 | 2018-09-25 | Tyco Safety Products Canada Ltd. | Method and apparatus for automation and alarm architecture |
WO2017117674A1 (en) * | 2016-01-05 | 2017-07-13 | Tyco Safety Products Canada Ltd. | Intelligent smoke sensor with audio-video verification |
EP3441951B1 (en) * | 2017-08-08 | 2020-03-18 | Carrier Corporation | Door lock with display unit |
Citations (3)
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US4884222A (en) * | 1984-07-31 | 1989-11-28 | Tetsuya Nagashima | Fire alarm system |
US20080281220A1 (en) * | 2004-10-04 | 2008-11-13 | Statchip Aps | Handheld Home Monitoring Sensors Network Device |
US20090077895A1 (en) * | 2007-09-26 | 2009-03-26 | Adi Tshai | Automatic door bottom with release mechanism |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH75518A (en) * | 1917-02-01 | 1917-08-01 | Arno Boerner | Tubeless rubber tires for automobiles, bicycles, etc. |
NL152212B (en) * | 1949-03-11 | Mitsui Shipbuilding Eng | CONTAINER SHIP. | |
JPS5272596A (en) * | 1975-12-15 | 1977-06-17 | Yuwa Sangyo Kk | Composite early fire detecting system and device therefor |
US20020196152A1 (en) * | 2001-06-20 | 2002-12-26 | Eric Wilson | Automated fire protection system |
US20030112145A1 (en) * | 2001-12-18 | 2003-06-19 | Allen Daniel T. | Thermoelectric fire alarm device |
JP2004056866A (en) * | 2002-07-17 | 2004-02-19 | Nec Engineering Ltd | Portable communication apparatus equipped with power generation function |
US7068177B2 (en) * | 2002-09-19 | 2006-06-27 | Honeywell International, Inc. | Multi-sensor device and methods for fire detection |
US20060289657A1 (en) * | 2005-06-25 | 2006-12-28 | Outland Research, Llc | Methods and apparatus for user interaction with RFID cards |
DE102005031106A1 (en) * | 2005-07-04 | 2007-01-18 | Simons, Oliver, Dipl.-Betriebsw. | Micro integrated movement and vibration sensor, has electronic and mechatronic components that are strongly shortened in such a manner components are integrated in form of window catch with standardized connecting dimensions and shaping |
US7733224B2 (en) * | 2006-06-30 | 2010-06-08 | Bao Tran | Mesh network personal emergency response appliance |
US8333584B2 (en) * | 2005-10-28 | 2012-12-18 | Beckett Gas, Inc. | Burner control |
JP4953729B2 (en) * | 2006-08-17 | 2012-06-13 | テンパール工業株式会社 | Residential fire alarm |
DE102006055120B4 (en) * | 2006-11-21 | 2015-10-01 | Evonik Degussa Gmbh | Thermoelectric elements, process for their preparation and their use |
-
2009
- 2009-04-03 DE DE200910016154 patent/DE102009016154A1/en not_active Ceased
-
2010
- 2010-03-31 EP EP10718505A patent/EP2415087A2/en not_active Withdrawn
- 2010-03-31 WO PCT/EP2010/054329 patent/WO2010112554A2/en active Application Filing
- 2010-03-31 US US13/262,808 patent/US20120032527A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884222A (en) * | 1984-07-31 | 1989-11-28 | Tetsuya Nagashima | Fire alarm system |
US20080281220A1 (en) * | 2004-10-04 | 2008-11-13 | Statchip Aps | Handheld Home Monitoring Sensors Network Device |
US20090077895A1 (en) * | 2007-09-26 | 2009-03-26 | Adi Tshai | Automatic door bottom with release mechanism |
Non-Patent Citations (2)
Title |
---|
MATEU L ET AL: "Human Body Energy Harvesting Thermogenerator for Sensing Applications", SENSOR TECHNOLOGIES AND APPLICATIONS, 2007. SENSORCOMM 2007. INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 14 October 2007 (2007-10-14), pages 366 - 372, XP031338545, ISBN: 978-0-7695-2988-2 * |
See also references of WO2010112554A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102009016154A1 (en) | 2010-10-14 |
WO2010112554A2 (en) | 2010-10-07 |
WO2010112554A3 (en) | 2011-08-25 |
US20120032527A1 (en) | 2012-02-09 |
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