EP2591512A1 - Überwachungsanordnungen und verfahren zum überwachen einer vorrichtung - Google Patents
Überwachungsanordnungen und verfahren zum überwachen einer vorrichtungInfo
- Publication number
- EP2591512A1 EP2591512A1 EP11745715.0A EP11745715A EP2591512A1 EP 2591512 A1 EP2591512 A1 EP 2591512A1 EP 11745715 A EP11745715 A EP 11745715A EP 2591512 A1 EP2591512 A1 EP 2591512A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detection means
- arrangement according
- monitoring arrangement
- thermal generator
- electrical signal
- 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- Withdrawn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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims description 7
- 238000000429 assembly Methods 0.000 title 1
- 230000000712 assembly Effects 0.000 title 1
- 238000001514 detection method Methods 0.000 claims abstract description 79
- 238000001228 spectrum Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 abstract description 12
- 230000004044 response Effects 0.000 abstract description 3
- 230000004913 activation Effects 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010000210 abortion Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 238000009420 retrofitting Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
- G07C3/02—Registering or indicating working or idle time only
- G07C3/04—Registering or indicating working or idle time only using counting means or digital clocks
Definitions
- the invention relates to monitoring arrangements for monitoring a device according to claims 1, 11 and 18 and to a method for monitoring a device according to claim 29.
- a monitoring arrangement for monitoring at least one device is provided, with
- thermoelectric generator for detecting the operating time of a device, wherein the thermoelectric generator is to be arranged in relation to the device so as to generate an electrical signal indicative of the commissioning of the device, due to the heat generated by the start-up of the device, and
- the detection means are adapted to detect the electric signal generated by the thermal generator and to determine based on the detected electrical signal an operating time of the device, wherein
- the detection means comprise a transmitting unit which detects an electrical signal signaling the start-up of the device, and after detecting the electrical signal intermittently sends radio signals to a receiving unit of the detection means and counting means of the detection means counts the received radio signals and the number the radio signals determines the operating time of the device.
- the detection means are in particular formed in the form of an electronic circuit which is electrically connected to the thermogenerator.
- the thermogenerator comprises, for example, a microtechnologically produced thermoelectric component, such as e.g. described in DE 198 45 104 A1. This document is expressly incorporated by reference in connection with the design and manufacture of the thermoelectric device.
- the "electrical signal" of the thermal generator comprises (or is), for example, an increasing voltage which is generated by the thermal generator due to the temperature gradient acting on the device when it is switched on or a change in a temperature gradient already applied to the thermal generator when the device is switched on.
- an “electrical signal” for example, a voltage generated by the thermal generator can be considered, which is above a predetermined minimum value.
- Evaluation means of the detection means check the voltage generated by the thermal generator and interpret, for example, a rising voltage curve, which in particular has a time change (slope) which exceeds a predeterminable value, or a voltage which is above a minimum value, as a signal indicating the startup of the device displays.
- the time at which the thermal generator voltage exceeds the predetermined minimum value is regarded as the switch-on time.
- the predefinable minimum value is determined in particular via the design of a heat sink of the thermal generator. For example, a desired minimum value is first defined and the design of the heat sink is determined as a function of this minimum value.
- the thermal generator can also have a capacitive element for storing the electrical energy generated by it, wherein the "electrical signal" generated by the thermal generator can be a voltage provided by the capacitive element which exceeds a predefinable limit value the thermogenerator, as will be explained below with reference to the third aspect of the invention.
- the electrical signal which signals the startup of the device and triggers the transmission of the radio signals, in particular, the electrical signal generated by the thermal generator.
- the electrical energy generated by the thermal generator can also be used, in particular, to supply the transmitting unit and / or other components of the detection means to be arranged on the device, so that an as energy-independent determination of the operating time can be realized.
- the electrical signal which the thermal generator generates when the device is switched on is a first electrical signal and when the device is switched off the thermal generator generates a second electrical signal which signals the switching off of the device.
- the second electrical signal comprises a falling voltage or a voltage which is lower than a predeterminable value, wherein the detection means also check the thermo-generator voltage to determine whether the thermo-generator voltage falls below this value and, if so, the time at which the voltage falls below the specified value, interpret as switch-off time.
- the transmitting unit can be supplied (in particular exclusively) by electrical energy which the thermogenerator generates.
- the thermogenerator voltage exceeds a predetermined value (start of operation of the apparatus) or below a predetermined value (end of operation)
- the energy provided by the thermogenerator reaches a value sufficient To operate transmitting unit (ie the intermittent radio signals absetz) or the provided energy falls below a minimum value, which is necessary for operating the transmitting unit.
- the monitoring device has a display (eg in the form of an LCD display) for displaying the operating time.
- the detection means are in particular connected to the display or another terminal (eg a a PC or a mobile phone) connected (eg by electrical or wireless) and send to the display and / or the terminal the current operating time (and or the entire operating time of switching on or off of the device).
- the detection means may be designed such that when the device is switched on again, ie when a thermal signal of the thermogenerator is detected again when the device is switched on, the last counter reading and thus the preceding operating duration are indicated on the display, transmitted to the terminal or written to another memory.
- the display can be operated by means of the voltage generated by the thermal generator, the display can be such that it also after switching off the power still the last displayed display (ie the last count) displays (eg similar to an "e-ink” (electronic Ink) display or a bistable display or display).
- the last displayed display ie the last count
- displays eg similar to an "e-ink” (electronic Ink) display or a bistable display or display.
- the display or terminal for example, is located remotely from the thermal generator (i.e., the device), and e.g. connected to the receiving unit of the detection means.
- the receiving unit is arranged in particular away from the device.
- the intermittent transmission of a radio signal (eg, one of the transmitting unit uniquely assigned identifier) is triggered, based on the radio signal determines the elapsed since the detection of the electrical signal time and thus the operating time the device is determined. For example, after detecting the electrical signal that signals the device to turn on, the transmitting device sends a (e.g., pulsed) radio signal to the receiving device per second (or per minute, for example).
- the counting device of the receiving device counts the radio signals received by the transmitting device, so that the operating time of the device can be determined on the basis of the number of radio signals.
- the current counter reading is in each case written in an (eg non-volatile) electronic memory (buffer).
- the transmitting unit eg exclusively borrowed
- the transmitting unit can be supplied by the electrical energy generated by the thermal generator, in particular such that no radio signal from the transmitting unit is more generated when no voltage is provided by the thermal generator.
- the intermittent transmission of the radio signal stops when the device is turned off, so the last entry (count) in the memory indicates the operating time of the device.
- the monitoring device can also be used for monitoring a plurality of devices, in particular spaced-apart devices, wherein each device is assigned at least one thermal generator.
- each device can be assigned a transmitting unit, each of which is designed to transmit information relating to the determined (current or entire) operating time.
- Several receiving units can serve to receive this information, but it is also conceivable that a common receiving unit (and / or a common counting unit) is provided for receiving the information of all transmitting units (star-shaped arrangement). It is also conceivable, of course, that each transmitting unit is assigned its own receiving and counting means.
- the transmitting and receiving units are networked with each other, wherein the individual transmitting units in particular have an identifier (ID, eg in the form of a "MAC" address - Media Access Control address) for uniquely identifying the transmitting units in the network and send out
- ID eg in the form of a "MAC” address - Media Access Control address
- the transmitting and receiving units can be networked with one another (in particular with the formation of a "MESH" network) so that greater distances can be bridged by a transmitting unit to a remote receiving station.
- the receiving unit of one of the devices obtains information about the condition of another device; e.g. the information that the other device is not in operation.
- the counter (s) may be connected to a control center (e.g., bi-directional) to which e.g. Information regarding the operating time can be determined for evaluation.
- the control center also handles control functions, e.g. the interval between the radio signals generated to determine the operating time can be adjusted by the control center; e.g. individually for the thermal generators connected to the control center via the respective receiving unit.
- control center via the respective transmitting and receiving unit information about the status of the thermal generators (eg the currently generated voltage) are transmitted and the control center in dependence of this information, the control of the thermal generators (eg the mentioned adaptation of the radio signal interval) performs.
- the detection means determine exclusively on the basis of the signal generated by the thermogenerator, which arises when switching on the device, or based this first signal and a second electrical signal, which arises when switching off the device, the operating time of the device.
- the monitoring arrangement with the exception of the thermogenerator (or a plurality of thermogenerators), has no further sensors which are used to determine the duration of operation.
- the monitoring arrangement has an electronic memory in which information relating to the determined operating time can be stored.
- the memory is in the form of a nonvolatile memory (eg in the form of a flash memory). With such a memory, it is particularly possible to retrieve information about the operating time even after switching off the device.
- the monitoring arrangement may further comprise electronics which serve to condition the electrical signals (voltages) generated by the thermal generator, i. in particular, to exercise a filter function in order to be able to distinguish signals which arise as a result of fluctuations in the temperature gradient acting on the thermogenerator from an electrical signal which is generated by the thermogenerator when the device is switched on or off.
- the monitoring arrangement (or, as mentioned above, the thermal generator itself) has an energy store in which electrical energy generated by the thermal generator can be stored.
- the energy store can be used in particular for operating a data memory (see above) of the monitoring device, so that it can be ensured that data in a memory of the monitoring arrangement are also available for a longer time after the device has been switched off.
- the invention also relates to an arrangement of a device and a monitoring arrangement according to one of the preceding claims.
- the electrical energy generated by the thermal generator is used to supply at least (eg electronic) a component of the arrangement (ie the device and / or the monitoring arrangement).
- the device whose operating time is to be determined by means of the monitoring arrangement is, for example, a pump, in particular a vacuum pump or a liquid pump.
- the invention is not limited to any particular type of device, but the monitoring device can in principle be used with any device that generates heat during operation.
- the monitoring arrangement according to the invention can also be retrofitted to existing devices, ie retrofitted, for example, to a radiator whose operating hours are to be determined. This is conceivable in particular in the context of a system for building automation, which is used to control several radiators (or other heat-conducting devices such as motors, bearings (eg ball bearings of machines).
- one of the components of the device operated by means of the electrical energy generated by the thermal generator is a sensor for detecting vibrations of the device (i.e., a vibration sensor, for example in the form of an acceleration sensor).
- a vibration sensor for example in the form of an acceleration sensor
- the vibration sensor is arranged in addition to the detection means for detecting the operating time and e.g. serves to provide information about the state of the device.
- the vibration sensor is in particular a component of the monitoring arrangement, so that a retrofitting of the vibration monitoring is possible without any problems.
- the vibration sensor detects an imbalance of a ball bearing and the life of the ball bearing can be estimated using the data of the vibration sensor, so that an unexpected failure of the ball bearing having device can be avoided.
- the senor cooperates with the detection means of the monitoring arrangement such that the detection of the vibrations is triggered by the electrical signal of the thermal generator, which signals the startup of the device.
- the monitoring arrangement may also include a memory to store information regarding the vibrations sensed by the sensor, ie the memory is directly or indirectly connected to the vibration sensor. In particular, the amplitude and / or frequency of the detected vibrations as a function of time saved.
- the memory can, as explained above, additionally store counting information regarding the operating time.
- the monitoring arrangement can also have a transmitting unit, via which information relating to the vibrations detected by the sensor is transmitted to an external receiver, in particular at intervals.
- the transmitting unit also transmits information regarding the operating time determined by the detecting means, as mentioned above.
- the invention relates to a monitoring arrangement for monitoring at least one device, with
- the thermal generator is to be arranged in relation to the device so as to generate electrical energy due to the heat generated when the device is put into operation;
- thermogenerator The means are operated with the electrical energy of the thermogenerator.
- the monitoring device comprises the above-described detecting means which detects an operating time of the device in response to a thermo-generator signal.
- the variants discussed above with respect to the vibration sensor are also applicable to the monitoring arrangement according to the second aspect of the invention.
- the monitoring arrangement according to the second aspect of the invention also be used as a monitoring device in the arrangement described above.
- the embodiments described below in relation to the third aspect of the invention may also be used in connection with the second aspect of the invention (mutatis mutandis).
- the monitoring arrangement can also have means for detecting and evaluating a frequency spectrum of the sensor signal (ie the vibrations detected by the sensor).
- the means detect the sensor signal at intervals, it being possible in each case before the detection of the sensor signal, to be checked as to whether the electrical energy provided by the thermal generator (or an energy store fed by the thermogenerator) is sufficient. If this is not the case, data collection is delayed. Based on the frequency spectrum can be concluded on the operating condition. For example, the presence of only few vibration frequencies (eg, only a single frequency or less than three) in the frequency spectrum indicates trouble-free operation, while the occurrence of many vibration frequencies indicates interference and required maintenance of the device (eg, a pump).
- the thermal generator or an energy store fed by the thermogenerator
- thermogenerator ie by "energy harvesting" energy production
- the means for evaluating generate a signal (eg electrical or optical ), which signals a required maintenance of the device when the frequency spectrum has more than three (or more than two or more than one) maxima (ie frequencies)
- the detection means, the sensor and / or the transmitting unit can be on one common printed circuit board or be arranged on interconnected circuit boards.
- a monitoring arrangement for monitoring at least one device, with
- At least one thermal generator which is to be arranged with respect to the device that it generates electrical energy due to the heat generated during startup of the device, wherein
- the thermal generator has a capacitive element for storing the electrical energy generated see;
- Detecting means for detecting an operating time of the device which are adapted to detect a voltage provided by the capacitive element of the thermal generator voltage and to determine based on the detected voltage, the operating time of the device.
- the thermogenerator has a thermotechnically manufactured thermoelectric component.
- the thermal generator may comprise a voltage conditioning device (eg in the form of a step-up converter) with an AC voltage generating unit, wherein the AC voltage generating unit generates an AC voltage from a DC voltage generated by a thermoelectric element of the thermal generator, and wherein the capacitive element is part of the span tion processing device for smoothing the AC voltage generated by the AC voltage generating unit is.
- the detection means generate e.g. a signal indicating the start of the commissioning of the device when the voltage provided by the capacitive element exceeds a predetermined limit. It is conceivable in particular that if the voltage provided at the capacitive element exceeds a presettable value, a timer, e.g. in the form of a counter which initiates detection means (e.g., directly by the voltage on the capacitive element or by an electrical signal generated by the detection means in response to the voltage on the capacitive element), and e.g. is stopped again when the voltage across the capacitive element falls below the predetermined value.
- a timer e.g. in the form of a counter which initiates detection means (e.g., directly by the voltage on the capacitive element or by an electrical signal generated by the detection means in response to the voltage on the capacitive element), and e.g. is stopped again when the voltage across the capacitive element falls below the predetermined value.
- the timer with which the time elapsed between the detection of the voltage generated by the capacitive element and the switching off of the device, and thus the operating time of the device, is determined in particular in the form of an electronic circuit, e.g. Part of the detection means or is connected to these only electrically.
- the timer may e.g. also remote from the device (i.e., the thermogenerator).
- the detection means are supplied via the energy generated by the thermal generator, which is why, for example, an electrical connection between the timer and the thermoelectric generator (eg the capacitive element) exists.
- the timer is only partially or not supplied with the thermal generator voltage, but for example via a battery. If the timer is supplied (eg exclusively) with the energy supplied by the thermogenerator, the determination of a start and an end of the operation of the device (ie the detection of the operating time) can also be effected simply by the energy supplied by the thermogenerator reaching a value which is sufficient to trigger the timer or the energy supplied falls below a minimum value, which is necessary for operating the timer.
- the timer is started when the thermo-generator provides a sufficient amount of energy and stops when the energy provided is insufficient.
- the detection means also comprise a memory in which the count of the radio signals determined by the counter is stored, for example, a counter is provided as a timer, which generates a count signal at intervals, the number of count signals in a memory of the detection means after starting the counter can be written.
- the counter it is possible for the counter to be operated only by means of the energy generated by the thermal generator (the voltage provided by the capacitive element), so that no counting signal is generated any longer, if sufficient energy is no longer available, ie after switching off the Contraption. In this case, the last count stored in memory would indicate the operating time of the device.
- the detection means may also comprise a receiving unit for receiving information to which information about the determined operating time is transmitted wirelessly by a transmitting unit; e.g. a time that indicates the switch-on time, a signal that sets an external counter in motion, or a determined operating time.
- the electrical signal which is transmitted to the transmitting unit and which indicates the switching on of the device is in particular generated by evaluation means of the detection means which monitor the voltage at the capacitive element for the presence of a startup of the device.
- the voltage which can be tapped off at the capacitive element may be transmitted directly to the transmitting unit as the electrical signal which indicates the switching on of the device.
- the wireless connection e.g. not the already determined operating time transmitted, but the determination of the operating time by an external counter (or other time recording) only started.
- the transmitting unit transmits a radio signal to the receiving unit at intervals (in particular at temporally constant intervals) after detecting the electrical signal indicating the switching on of the device the detection means (ie a counter of the detection means on the side of the receiving unit) determine the operating time of the device on the basis of this radio signal.
- the detection means may also have further features explained with reference to the first aspect of the invention.
- the monitoring arrangement has a display. It is possible here that information relating to the operating time is sent by radio to a receiving unit of the detection means arranged remotely from the monitored device and from there to the display or the terminal. In particular, the transmission of the information takes place at intervals, ie at predeterminable time intervals, or only after switching off the device, for example when detecting an electrical voltage on capacitive element, which indicates the switching off of the device, by the detection means.
- the invention also relates to a method for monitoring a device, comprising the steps
- thermogenerator Arranging a thermogenerator with respect to the apparatus so as to generate an electrical signal indicative of the start-up of the apparatus due to the heat generated upon start-up of the apparatus;
- the detection means (22) have a transmitting unit, which detects an electrical signal signaling the startup of the device, and after detecting the electrical signal intermittently transmits radio signals to a receiving unit of the detection means and a counting means of the detection means counts the received radio signals and based on Number of radio signals determines the operating time of the device.
- the invention furthermore relates to methods for monitoring a device, which have steps corresponding to the above-described devices according to the second or third aspect of the invention.
- FIG. 1 shows schematically a monitoring arrangement according to the invention arranged with respect to a device
- FIG. 2 shows a monitoring arrangement according to the second aspect of the invention
- FIG. 3A shows components of the monitoring arrangement from FIG. 2;
- FIG. 3B shows the vibration sensor and the transmission unit of FIG. 3A in an interconnected state.
- Fig. 4A shows the signal of a vibration sensor arranged on a damaged vacuum pump
- Fig. 4B is the frequency spectrum associated with Fig. 4A;
- Fig. 5A shows the signal of a vibration sensor arranged on a trouble-free vacuum pump;
- Fig. 5B is the frequency spectrum associated with Fig. 5A.
- FIG. 6 shows schematically a circuit diagram of a voltage conditioning device of a monitoring arrangement according to the invention.
- FIG. 1 illustrates a device 1 which generates heat during operation, wherein a monitoring device 2 according to the invention is located in the region of the device 1 and has a thermal generator 21 arranged in the region of the device 1.
- the thermal generator 21 is arranged with respect to the device 1 such that a temperature gradient acts on it or a temperature gradient already acting on it changes when the device 1 is put into operation. Thus, when the device 1 is started up, the thermal generator 21 generates a first electrical signal (an electrical voltage) and, when the device is switched off, a second electrical signal.
- a first electrical signal an electrical voltage
- the first and second electrical signals of the thermal generator 21 are transmitted to detection means (e.g., in the form of an electrical circuit) 22, the thermogenerator 21 being connected to the detection means 22, in particular via an electrical line (e.g., a track or cable).
- detection means 22 detects, based on the first and the second electrical signal, the operating time of the device which has elapsed since the startup or between the startup and the shutdown.
- the detection means 22 comprise at least one transmitter unit (not shown) and a remote from the device 1 receiving unit (also not shown), wherein the transmitting unit detects the first electrical signal of the thermal generator, which indicates the switching on of the device, and then, as above already explained, a periodic radio signal (counting signal) emits to the receiving unit. A counting device of the detection means then determines from the number of received radio signals the operating time of the device. It is also possible that the detection means 22 have a (further) receiving unit which is located in the vicinity of the transmitting unit (for example, is arranged on the device to be monitored), for example a remote control of the thermogenerator or components of the detection unit. medium or to form a network between multiple monitoring devices. For example, the further receiving unit and the transmitting unit are arranged in a common module, for example on a common printed circuit board.
- the detection means 22 are particularly associated with other data processing terminals (e.g., via radio).
- the detection means 22 can be read out via an external computer (not shown).
- the monitoring device 2 it is also conceivable for the monitoring device 2 to have a display on which the operating time which has elapsed since switching on and / or other information relating to the operating time is displayed.
- the thermal generator 1 comprises a capacitive element for storing energy, wherein a voltage of the capacitive element is the signal that signals the start-up of the device, as will be explained in more detail with reference to FIG.
- the detection means 22 comprise a transmitting and receiving unit. Rather, the determination of the operating time can be local, i.
- a counter of the detecting means is disposed in the vicinity of the thermo generator 1 (on the apparatus 1).
- the detection means 22 detect a second signal of the thermal generator, which arises when the device 1 is switched off. Rather, it is also possible that the operating time of the device, as already stated above, takes place only on the basis of the first signal generated when the device is switched on.
- FIG. 2 shows a monitoring arrangement according to an embodiment of the invention.
- the monitoring arrangement 2 has a thermal generator 21 arranged on a printed circuit board 3.
- the thermogenerator 21 is located under a base 7, on which a heat sink 4 is arranged.
- the printed circuit board 3 also has connections 31, 32 (see Fig. 3A), via which a module 5, which comprises a vibration sensor and a transmitting unit for wireless transmission of data of the vibration sensor and / or the thermal generator with the circuit board 3 electrically is coupled.
- the module 5 has corresponding contacts 51, 52 which are inserted into the terminals 31, 32; see. Fig. 3B.
- the module 5 is composed of a first circuit board 53 and a second circuit board 54, wherein on the first circuit board 53 electronic components are arranged, which form the transmitting unit, while on the second circuit board 54 are electronic components that form the vibration sensor.
- the first circuit board 53 has a connection 531, via which the second circuit board 54 can be coupled to the first circuit board.
- the vibration sensor can therefore be retrofitted in a simple manner.
- the monitoring arrangement 1 also has a further module 6, which is e.g. a memory (capacitor) for electrical energy generated by the thermal generator 21 summarized.
- the module 6 may comprise a circuit for conditioning the voltage generated by the thermogenerator or provided by the memory, e.g. 4A shows the output signal produced by a vibration sensor of a monitoring arrangement according to the invention over time, wherein the vibration sensor is arranged on a device in the form of a (damaged) vacuum pump and via a thermogenerator with electrical The vibration sensor absorbs the vibrations of the pump that occur during operation of the pump.
- FIG. 4B shows the frequency spectrum associated with the amplitude signal of FIG. 4A (generated in particular by Fourier transformation). It can be seen that the frequency spectrum has a plurality of maxima, i. of superimposed oscillation frequencies.
- FIG. 6 relates to an exemplary embodiment of a monitoring arrangement according to a further aspect of the invention, according to which the thermal generator of the monitoring arrangement has a voltage conditioning device in the form of an up-converter 7.
- the boost converter 7 includes an AC voltage generating unit in FIG Shape of a chopper 71, which converts a DC voltage U T EG generated by a thermoelectric element 21 1 of the thermal generator into an AC voltage.
- This alternating voltage is rectified in a rectifier 72 (for example in the form of a diode), wherein tips of the alternating voltage are smoothed by means of a capacitive element in the form of a capacitor 73.
- the capacitor 73 serves at the same time as a memory of the thermoelectric generator (from the thermoelectric element 21 1) generated electrical energy and, for example, to supply components of the detection means (not shown in Fig. 6) of the monitoring device.
- the determination of the operating time "as a function of the output voltage U aUs " means that a point in time when the voltage U aUs exceeds a predetermined limit value is interpreted as the switch-on time of the device and the measurement of the operating time is started at this point in time
- a point in time at which the voltage U out again falls below the preset limit value can be regarded as the switch-off time point .
- This can also be done “automatically” as explained above, namely by the measurement of the operating time starting when that of the thermoelectric element 21 1 energy is sufficient to set a counter of the detection means in operation, and aborts (or suspends) when the energy to operate the counter is no longer sufficient. It is also conceivable that a further capacitor is provided with a much larger capacity, which acts after the
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Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010031135.9A DE102010031135B4 (de) | 2010-07-08 | 2010-07-08 | Überwachungsanordnung zum Überwachen einer Vorrichtung und Verfahren zum Überwachen einer Vorrichtung |
DE202010015650U DE202010015650U1 (de) | 2010-07-08 | 2010-11-18 | Überwachungsanordnung zum Überwachen einer Vorrichtung |
PCT/EP2011/061636 WO2012004389A1 (de) | 2010-07-08 | 2011-07-08 | Überwachungsanordnungen und verfahren zum überwachen einer vorrichtung |
Publications (1)
Publication Number | Publication Date |
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EP2591512A1 true EP2591512A1 (de) | 2013-05-15 |
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Application Number | Title | Priority Date | Filing Date |
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EP11745715.0A Withdrawn EP2591512A1 (de) | 2010-07-08 | 2011-07-08 | Überwachungsanordnungen und verfahren zum überwachen einer vorrichtung |
Country Status (3)
Country | Link |
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EP (1) | EP2591512A1 (de) |
DE (2) | DE102010031135B4 (de) |
WO (1) | WO2012004389A1 (de) |
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GB201320280D0 (en) | 2013-11-18 | 2014-01-01 | Heraeus Quartz Uk Ltd | Furnace for sintering silica soot bodies |
DE102016210989A1 (de) * | 2016-06-20 | 2017-07-27 | Continental Automotive Gmbh | Sensormodul mit Energierückgewinnung und Steuermodul für Fahrzeuge und Fahrzeug |
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---|---|---|---|---|
GB2027902A (en) * | 1978-07-14 | 1980-02-27 | Secr Social Service Brit | Measuring wearing time of a prosthesis or orthosis |
DE4305172A1 (de) * | 1993-02-19 | 1994-08-25 | Autent Ingenieurgesellschaft F | Vorrichtung zur Überwachung eines sicherheitsrelevanten Elements eines Kraftfahrzeugs |
DE4307916C1 (de) * | 1993-03-12 | 1994-09-29 | Heraeus Sensor Gmbh | Temperaturüberwachungsvorrichtung mit Energieversorgung durch Thermoelement |
US5447059A (en) * | 1993-12-27 | 1995-09-05 | Solar Turbines Incorporated | Apparatus and method for determining gas turbine engine life |
JPH0837322A (ja) * | 1994-07-21 | 1996-02-06 | Seiko Instr Inc | 熱電モジュール |
DE19724769A1 (de) * | 1997-06-12 | 1998-12-17 | D T S Ges Zur Fertigung Von Du | Energieautark betriebenes Sensorsystem und Verfahren zur Detektion unerwünschter Wärmeentstehung |
DE19845104A1 (de) | 1998-09-30 | 2000-04-06 | Siemens Ag | Verfahren zum Herstellen eines thermoelektrischen Wandlers |
DE10126733A1 (de) * | 2001-05-31 | 2002-12-05 | Wilo Gmbh | Lebensdauerüberwachung an Umwälzpumpen |
JP3850311B2 (ja) * | 2002-02-21 | 2006-11-29 | オムロン株式会社 | 残存寿命予測報知方法および電子機器 |
JP2004303208A (ja) * | 2003-03-20 | 2004-10-28 | Seiko Epson Corp | 発振器とこれを用いた電子機器 |
DE102004007504B4 (de) * | 2004-02-13 | 2009-11-05 | Demag Cranes & Components Gmbh | Hebezeug, insbesondere Kettenzug oder Seilzug |
US20070209435A1 (en) * | 2004-09-23 | 2007-09-13 | Koninklijke Philips Electronics, N.V. | Monitoring the time of operating of a device |
DE202006017151U1 (de) * | 2006-11-08 | 2007-02-01 | Rubröder, Klaus | Betriebsstundenzähler für eine Zentralheizung |
FI120758B (fi) * | 2007-08-31 | 2010-02-15 | Vacon Oyj | Komponentin eliniän määritys |
-
2010
- 2010-07-08 DE DE102010031135.9A patent/DE102010031135B4/de not_active Expired - Fee Related
- 2010-11-18 DE DE202010015650U patent/DE202010015650U1/de not_active Expired - Lifetime
-
2011
- 2011-07-08 EP EP11745715.0A patent/EP2591512A1/de not_active Withdrawn
- 2011-07-08 WO PCT/EP2011/061636 patent/WO2012004389A1/de active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2012004389A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE202010015650U1 (de) | 2011-03-31 |
WO2012004389A1 (de) | 2012-01-12 |
DE102010031135A1 (de) | 2012-01-12 |
DE102010031135B4 (de) | 2015-01-22 |
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