EP3444787B1 - Système de capteurs de surveillance d'un objet - Google Patents

Système de capteurs de surveillance d'un objet Download PDF

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Publication number
EP3444787B1
EP3444787B1 EP18199006.0A EP18199006A EP3444787B1 EP 3444787 B1 EP3444787 B1 EP 3444787B1 EP 18199006 A EP18199006 A EP 18199006A EP 3444787 B1 EP3444787 B1 EP 3444787B1
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EP
European Patent Office
Prior art keywords
sensor
adapter
sensor system
module
sensor module
Prior art date
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Application number
EP18199006.0A
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German (de)
English (en)
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EP3444787A1 (fr
Inventor
Jan Hefer
Johannes Rojahn
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Publication of EP3444787A1 publication Critical patent/EP3444787A1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/06—Mechanical actuation by tampering with fastening
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1445—Mechanical actuation by lifting or attempted removal of hand-portable articles with detection of interference with a cable tethering an article, e.g. alarm activated by detecting detachment of article, breaking or stretching of cable
    • G08B13/1463—Physical arrangements, e.g. housings
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits

Definitions

  • the invention relates to a sensor system for monitoring an object according to the preamble of the main claim.
  • a sensor system of this type can be used to monitor a work of art or another object that is to be protected, for example, against counterfeiting, theft or damage from external influences.
  • Sensor systems of this type can be set up to record various sizes which characterize the ambient conditions relevant for the preservation of the object (for example temperature, air humidity, brightness). They can also serve to enable the object monitored with it to be located and / or to detect vibrations on the object.
  • a generic sensor system is for example in the publication US 2010/0315239 A1 described.
  • the present invention is therefore based on the object of proposing a comparable sensor system for monitoring objects which, while being attached to an object to be monitored in the simplest possible manner, cannot be removed from it without being noticed.
  • the sensor system proposed here for monitoring an object comprises at least a first part and a second part, of which a sensor module is with at least one sensor, and at least one fastening means for fastening the first part to the object to be monitored .
  • the first part and the second part are designed to produce a detachable connection between the second part and the first part.
  • One of the two parts mentioned is equipped with a signal transmitter which is set up to detect a loosening of the connection mentioned between the second part and the first part and to generate a signal triggered thereby. If the second part is separated from the first part when the sensor system is separated from the object, this is recognized by the signal generator, which then generates the signal mentioned. This initially prevents the second part of the sensor system from being removed unnoticed from the first part and thus from the object to be monitored.
  • the proposed sensor system also provides that said attachment of the first part to the object in the state mentioned, in which the connection between the second part and the first part exists, is not non-destructive, that is to say not without at least partially destroying or damaging the Object and / or the sensor system is detachable.
  • the first part and the second part are thus designed in such a way that they prevent the first part from being attached to the object in a non-destructive manner.
  • connection between the second part and the first part is not released before the first part is separated from the object - which, as I said, is not possible without being noticed, this attachment of the first to the object can only be released by simultaneously Object and / or the sensor system is at least damaged. Since this damage to the object and / or the sensor system can either be detected during the loosening of the attachment - due to the force required to loosen it and accompanied by vibrations - or at least leaves traces that remain recognizable and can be determined subsequently, it is in any case impossible to detach the sensor module - be it the first or the second of the parts mentioned - from the object to be monitored without being noticed.
  • the signal that is triggered by releasing the connection between the two parts can be, for example, an acoustically or optically perceptible warning signal. However, it can also be a radio signal or another signal that can be received by means of an appropriately configured external receiver unit. It is of course also possible for the signal transmitter to also be set up, in a state in which the connection between the two parts mentioned exists, to detect a loosening of the attachment of the first part to the object and to generate a signal triggered thereby, the same can apply to the first signal.
  • the signal transmitter generally has a correspondingly designed sensor element in order to detect the loosening of the connection mentioned between the second part and the first part.
  • the sensor element can be designed as a contact sensor, as a mechanical button or switch, as a magnetic element, as a piezoelectric or piezoresisitive element, as a capacitive or inductive sensor or as a temperature sensor or as an optical sensor or light barrier or as part of a conductor loop.
  • a bulge or a projection can be provided which, in the state in which the said connection exists between the two parts, exerts a counterforce on the sensor element, which forces the sensor element into a predetermined (e.g. compressed) state transferred and / or in this state stops as soon as and / or as long as the named connection exists between the second part and the first part.
  • the first part of the sensor system can be an adapter that connects the sensor module to the object.
  • the proposed sensor system makes it possible to keep the shape of the sensor module unchanged for various applications and only to adapt the shape of the adapter to the shape of the object to be monitored so that the adapter and, via the adapter, the sensor module are also securely attached to the object can, without a change in the shape of the sensor module, which is typically complex and can also cause high costs, would be necessary.
  • the adapter is preferably made of a plastic and can thus be produced inexpensively in any desired shape.
  • Components of this type can be completely integrated in the sensor module or in a further function module of the sensor system which may be provided.
  • the aforementioned signal transmitter which is intended to detect a separation of the two parts, is arranged in the sensor module.
  • the adapter has a contact surface which faces a surface of the object when the adapter is attached to the object to be monitored in the intended manner.
  • the adapter when the adapter is attached to the object as intended, there is a flat contact contact between said contact surface and the surface of the object.
  • the said contact surface of the adapter is designed or shaped to be complementary to the surface of the object, in order to enable the object to be fastened as securely and gently as possible.
  • the sensor system has at least two different adapters, that is to say that said at least one adapter comprises a first adapter, a second adapter and possibly further adapters, these adapters being able to differ in the shape or configuration of their respective contact surface .
  • a size of the contact area of the first adapter differs from a size of the contact area of the second adapter and / or that a curvature of the contact area of the first adapter differs from a curvature of the contact area of the second adapter.
  • the contact surface of each of the adapters mentioned can, for example, be flat, convex, concave, round, angular or in any other shape or mixed shape.
  • the sensor system comprises several of the adapters mentioned, each of which has different contact surfaces, so that for a given object with a given surface of the object, the adapter can be selected whose contact surface is particularly good with the surface of the object fits and can therefore be particularly securely attached to the object.
  • the object has a convex, i.e. outwardly curved, surface with a certain radius of curvature
  • the adapter whose contact surface is designed to be as complementary as possible to it, which is concave, i.e. is curved inwards and has a radius of curvature that is as similar as possible.
  • the sensor system preferably comprises at least one sensor element, for example housed in the sensor module, for detecting a temperature and / or for detecting vibrations.
  • the sensor module can also include an evaluation unit for evaluating output signals of this sensor element, the evaluation unit preferably also being set up to detect those output signals of the sensor element that are characteristic of destroying the named part of the object to be monitored or the sensor system, such as an increase in temperature due to heating of the sensor system (for example in order to soften or melt parts of the sensor system) or shocks due to mechanical bending or separation of parts of the sensor system.
  • the evaluation unit can also be set up to generate a corresponding signal, which in turn is a can be an acoustically or optically perceptible warning signal or a radio signal or another signal that can be received by means of an appropriately configured external receiver unit.
  • the first part has an area with access to the at least one fastening means.
  • an area of the first part should be understood as “having access to the fastening means” if the fastening means can be accessed in this area or from this area without destruction, ie if the fastening means can be reached in this area or from this area can without damaging the object or at least part of the sensor system.
  • the fastening means is therefore only accessible in a non-destructive manner in those states of the sensor system in which this area is accessible without destruction using the said access.
  • the fastening means is, for example, a screw, rivet or a comparable mechanical fastening means
  • the first part for this fastening means typically has a passage opening (i.e. a hole) through which the fastening means is or can be passed.
  • a passage opening i.e. a hole
  • Such a fastening means is generally accessible without destruction if this passage opening is accessible from an upper side opposite the contact surface, that is to say if the region of the second part which surrounds the passage opening (s) on the said upper side is not covered or blocked.
  • the feature according to which the first part cannot be detached from the object in a non-destructive manner as long as the connection between the second part and the first part exists can be realized in this embodiment in that in the state mentioned, in which the connection between the second part and the first part, access to the at least one fastening element is blocked by the second part.
  • This is typically synonymous with the fact that, in this state, the area mentioned, which has this access, is not itself accessible without being destroyed, that is to say is typically itself covered or blocked by the second part.
  • the fastening means is also itself not accessible without being destroyed.
  • the second part has at least one bulge or widening or a projection or cantilever on at least one outer side of the second part, which in the state mentioned, in which the connection between the second part and the first part exists, obscured or blocked said access to the fastener.
  • this can have at least one bulge or widening or the projection or extension, for example rib-shaped or lamellar.
  • This widening or this projection is preferably made as stable and solid as possible and can, for example, have a metallic (e.g. steel) portion or can also be made entirely of metal, for example of a steel.
  • the fastening means or at least one of the fastening means is typically designed to produce a positive and / or non-positive fastening of the first part to the object.
  • it can be a screw or a rivet.
  • the fastening means can also be an adhesive for producing an integral fastening.
  • a combination of different fastening means is also conceivable, such as any combination of the examples mentioned here.
  • the adhesive serving as fastening means can be softened or released by applying an electrical voltage in the said access and / or by applying heat to the said access.
  • Adhesives with the required properties are, for example, from the in Adhesion - gluing and sealing 50 (2006) 9, pp. 28-30 published article by J.Kolbe, M. Stuve.
  • the aforementioned attachment of the first part to the object cannot be released without damage even in a state in which the aforementioned connection between the sensor module and the adapter does not exist.
  • the sensor system has a circuit which comprises a conductor loop which can be passed through a part of the object, and at least one section of the circuit which is connected to the conductor loop and runs through the first part (this in turn can have several sections, typically comprise two sections) and a further section of the circuit running through the second part.
  • the conductor loop, the at least one section of the circuit running through the first part and the further section of the circuit running through the second part are connected to one another, so that the circuit as a whole is closed or can be closed.
  • the signal generator mentioned can be set up to detect an interruption in this circuit (for example as a change in the electrical resistance of the circuit) and then, as described above, to generate a signal triggered thereby.
  • said conductor loop is preferably attached to the object, for example glued to the object or passed through the object, so that the first part can only be separated from the object it is possible to cut the conductor loop, i.e. by damaging and thus partially destroying the sensor system.
  • the conductor loop is interwoven with part of the screen.
  • the adapter forming the first part is designed as a plate or as a frame.
  • the adapter can have a first longitudinal strut and a second longitudinal strut and at least one cross strut connecting the first longitudinal strut to the second longitudinal strut.
  • the adapter is U-shaped and in this case comprises two of the longitudinal struts mentioned and preferably exactly one of the cross struts mentioned.
  • the longitudinal struts and the at least one transverse strut are preferably designed such that the sensor module is positioned between these longitudinal struts in the state mentioned, in which the connection between the sensor module and the adapter exists. In the state mentioned, in which the connection between the sensor module and the adapter is present, the longitudinal struts and the at least one cross strut then frame the sensor module at least partially.
  • the two parts typically have connecting elements designed to be complementary to one another.
  • the connecting elements mentioned can each be designed in the form of a rail, a groove, a groove, a spring, a bung, a bulge, a recess, a recess, a depression or in the form of a latching element, for example a latching lug or a clip his.
  • the first part and the second part each comprise at least one such connecting element, possibly also two or more such connecting elements.
  • the connecting elements are preferably designed in such a way that the named connection between the sensor module and the adapter can be repeatedly established and released again. In the state in which the said connection exists between the second part and the first part, the said connection elements are typically in mutual engagement, in a mutual positive engagement and / or in a mutual frictional engagement.
  • Typical designs provide that the two parts are pushed together or pushed into one another and can thus be connected by means of the connecting elements.
  • the connecting elements mentioned are arranged on side surfaces of the two parts.
  • the named connecting elements of the adapter can be arranged on mutually facing sides of these longitudinal struts.
  • a maximum height of the first part or of the adapter is preferably not greater than a maximum height of the second part or of the sensor element.
  • the heights mentioned are defined as dimensions in a direction perpendicular to the contact surface described above, that is to say perpendicular to the surface of the object, when the sensor system is attached to the object.
  • the said maximum height of the at least one adapter is even less than the maximum height of the sensor element, so that it projects above the adapter.
  • the sensor system Due to a spatially particularly compact design of the sensor system, it is in many cases possible to attach the sensor system to the object in such a way that it is not or hardly perceived by an observer of the object or at least is not perceived as disturbing. In some cases, it is even possible through a compact design to arrange the sensor system completely or at least partially within a cavity of the object.
  • the sensor system comprises, in addition to the sensor module, at least one functional module, which typically has in particular an energy store for supplying the sensor module with electrical energy and which should be able to be replaced without the sensor module having to be removed from the object and taken out of operation.
  • the functional module can be the second part of the sensor system if the first part is given by the sensor module.
  • the function module becomes the adapter as the first part and the sensor module as second part.
  • the at least one function module is set up for a detachable connection to the sensor module and / or to the adapter.
  • the functional module can also have connecting elements which interact with the connecting elements of the adapter already described above and can be of the same type as the connecting elements of the sensor module.
  • the adapter, the functional module and the sensor module are configured such that the functional module in a state in which the aforementioned connection between the sensor module and the adapter and the aforementioned connection between the functional module and the adapter also exist and the sensor module are arranged relative to one another and to the adapter such that they are arranged essentially at the same height relative to the above-mentioned contact surface of the adapter.
  • the function module and the sensor module are arranged next to one another when viewed from the direction of the contact surface (ie from the direction of the object). In this way it is achieved that the sensor system as a whole is very flat and thus advantageously projects as little as possible beyond the surface of the object.
  • the adapter as described above, is designed in the form of a frame and has two longitudinal struts and at least one cross strut connecting the two longitudinal struts
  • the functional module (as well as the sensor module) and the adapter are preferably also designed such that in the state in which the named connection exists between the functional module and the adapter, the functional module is positioned between the first longitudinal strut and the second longitudinal strut (and possibly next to the sensor module).
  • the connecting elements of the adapter can be designed at the same time for connecting the functional module and for connecting the sensor module to the adapter.
  • the sensor module and, if applicable, the functional module can each comprise one or more sensor elements.
  • This sensor element or these sensor elements can be set up to detect a temperature, a humidity, a radiation intensity or another measurement variable, for example a measurement variable that is used to obtain the object to be monitored relevant environmental conditions are characterized.
  • the sensor element or at least one of the sensor elements can be set up to detect vibrations in the sensor system or the object and / or to detect pollutants. In this way, it is in particular possible, as already described above, to detect unauthorized manipulation of the sensor system.
  • a location signal from a preferably satellite-based location system such as GPS or another location system
  • the function module and the sensor module can each have at least one interface, which can be set up for data exchange and / or for energy transmission between the sensor module and the function module.
  • the functional module can have an energy store, which is set up to supply consumers in the sensor module, such as the sensor elements already mentioned, with energy via the interfaces mentioned above.
  • the sensor module also has an energy store in order to supply the consumers contained in the sensor module with energy, for example during a separation of the functional module from the sensor module.
  • the function module and / or the sensor module can have interfaces which make it possible to transfer measurement signals from at least one external sensor element to the sensor module and / or to the function module.
  • the at least one external sensor element can be part of the sensor system and, for example, can also be attached to the object to be monitored. In particular, it can be used to detect a radiation intensity or an illuminance, for example on a front of a piece of art to be monitored, if the main components of the sensor system - in particular the first and the second part - are hidden on the back of the piece of art.
  • the sensor system can also have at least one plug connected to the external sensor, which is used for a detachable plug connection is set up with the second part of the sensor system, wherein the first part of the sensor system has a recess which receives the plug, the plug blocking at least then in this recess in the state mentioned, in which the second part is connected to the first part and its plug connection is locked to the second part when the first part is fastened to the object with the at least one fastening means.
  • the sensor system it is possible for the sensor system to have at least one additional functional element which is set up for a releasable plug connection to the second part of the sensor system, the first part of the sensor system having a recess which receives the functional element, the functional element in the state in which the second part is connected to the first part, at least then blocked in this recess and its plug connection is locked to the second part when the first part is fastened to the object with the at least one fastening means.
  • the function module and / or the sensor module can comprise a transmitter unit for transmitting measurement signals of the sensor elements mentioned or signals or warning signals derived therefrom to an external receiver unit.
  • the function module and / or the sensor module can include an evaluation device for evaluating the measurement signals of the sensor elements mentioned.
  • an evaluation unit for example, it is possible to use such an evaluation unit to monitor, depending on the measurement signals, whether predetermined ambient conditions of the object have been met, for example with regard to temperature, air humidity, radiation exposure, brightness and / or vibrations.
  • the evaluation unit can also be used to derive further information from the measurement signals, such as the extent of a load restricting the life of the object or the extent of a damaging effect of the environment on the object.
  • the function module and / or the sensor module can also include a memory unit for storing measurement signals from sensor elements or signals or data derived therefrom.
  • the functional module is removed from the adapter and possibly can be separated from the sensor module without triggering a signal or warning signal.
  • FIGs 1 and 2nd show schematic representations of a sensor system 1 of the type proposed here for monitoring an object 2, which in the case shown is given by a work of art in the form of a framed painting.
  • the sensor system 1 comprises an adapter 3, a sensor module 4 and a function module 5.
  • the adapter 3 is secured by means of several fastening means 11 (cf. Fig. 3rd and 6 ) releasably attached to a frame 6 of the object 2.
  • the adapter 3, the sensor module 4 and the function module 5 are designed to establish a detachable connection between the sensor module 4 and the adapter 3 and between the function module 5 and the adapter 3.
  • a state is shown in which these connections between the sensor module 4 and the adapter 3 and between the function module 5 and the adapter 3 and in which the adapter 3 is also attached to the frame 6 of the object 2.
  • the sensor system 1 With the sensor system 1, it is advantageously sufficient to adapt the adapter 3 made of plastic to the shape of the frame 6 of the object 2, whereas the sensor module 3 and the functional module 4 can be retained unchanged.
  • the sensor system 1 also includes a large number of further differently shaped adapters, which are not shown here.
  • Each of these further adapters is also designed to establish a detachable connection between the sensor module 4 and the adapter 3 and between the functional module 5 and the adapter 3 and differs from the adapter 3 shown here only in that it is shaped differently from a piece of art to be protected Contact area.
  • the adapter 3 which is best suited in each case or further adapters can then be selected.
  • Figure 3A is the sensor system from the Figures 1 and 2nd shown again in a semi-transparent manner so that some additional features can be seen, which are referred to below Figure 4 are explained in more detail.
  • the Figure 3B shows a cross section through the same sensor system on one in Figure 3A position marked with BB.
  • the sensor module 4, the adapter 3, the frame 6 can also be seen there.
  • the adapter 3 has a contact surface 9 which, in the present state, in which the said attachment of the adapter 3 to the object 2 to be monitored, faces a surface 10 of the frame 6 of the object 2 and bears against this surface 10.
  • the contact surface 9 of the adapter 3 shown is planar and thus complementary to the likewise planar surface 10 of the object 2, in order to enable the adapter 3 to be fastened to the object 2 as safely as possible and gentle on the object 2.
  • the one of these adapters can be selected, the contact surface of which fits particularly well with the surface of the object and thus is particularly securely attached to the object can be.
  • this attachment of the adapter can be made 3 only loosen the object 2 by simultaneously destroying or damaging at least part of the sensor system 1, be it part of the frame 6, part of the adapter 3 or part of the sensor module 4.
  • the sensor module comprises a sensor element 12 for detecting shocks which can occur, for example, when the adapter 3 is separated from the frame 6 with damage.
  • the sensor module 4 also comprises an evaluation unit 13 for evaluating output signals of this sensor element 12, the evaluation unit 13 also being set up to detect those output signals of the sensor element 12 which are based on at least partial destruction of the frame 6, the adapter 3 or the sensor module 4 indicate and e.g. caused by vibrations due to mechanical bending or cutting of parts of the sensor system 1, such as a widening 14 of the sensor module 4.
  • the evaluation unit 13 is also set up to generate or trigger warning signals, for example optically or acoustically perceptible signals and / or radio signals, which can be received by means of an appropriately configured external receiver unit (not shown here).
  • the evaluation unit 13 can be connected to correspondingly configured signal transmitters of the sensor module 4, in particular to that in FIG Fig. 4 Transmitter unit 27 of the sensor module 4 shown.
  • the sensor module 4 has on at least one outside of the sensor module 4 a lamellar bulge or widening 14 which is formed by a cantilever and forms a projection, the widening 14 or the projection thus formed in the state mentioned, in which the connections between the sensor module 4 and the adapter 3 exist, the said access to the fastening means covered and blocked.
  • the widening 14 is mechanically stable and solid and can have a steel core.
  • Figure 4 shows a further semi-transparent view of the embodiment of the Figures 1-3 .
  • the sensor module 4 comprises a signal generator 18, which is set up to detect a loosening of the connection mentioned between the sensor module 4 and the adapter 3 and to generate a signal triggered thereby.
  • the signal is a combination of an acoustically and an optically perceptible warning signal and a radio signal that is sent to an appropriately configured external receiver unit (not shown here).
  • the signal transmitter 18 has a correspondingly designed sensor element 18 ', which is set up to detect the loosening of the aforementioned connection between the sensor module 4 and the adapter 3 and in the present example is designed as a contact sensor or as a mechanical button or switch.
  • the sensor module 3 comprises, in addition to the sensor element 13, a further sensor element 20 which is used to detect a Radiation intensity and / or for receiving location signals of a satellite-based location system (eg GPS) can be set up.
  • a sensor element 21 is also provided in the function module 5, specifically for detecting an air humidity and a temperature.
  • An ID chip can also be provided in the sensor module 4 and / or in the function module 5.
  • the function module 4 and the sensor module 3 also each have an interface 22, 23 for data exchange and for energy transmission between the sensor module 4 and the function module 5.
  • the function module 5 contains, in particular, an energy store 24 in order to store the loads contained in the function module 5, such as the sensor element 21, and also the consumers contained in the sensor module 4, such as the sensor elements 12, 20, via the interfaces 22, 23 mentioned above. to supply with electrical energy.
  • the sensor module 4 also contains a small energy store 25 in order to temporarily supply the consumers contained in the sensor module 4 with energy during a separation of the functional module 5 from the sensor module 4.
  • This structure allows the energy store 24 to be exchanged with the functional module 5 without interrupting the monitoring of the object 2 by the sensor module 4.
  • the sensor element 21 is expediently accommodated in the exchangeable functional module 5, because, due to its relatively short lifespan, it may, like the energy store 24, possibly must be replaced during operation of the sensor system 1. Instead, it would also be conceivable to accommodate the sensor elements 12, 20 in the sensor module 4.
  • the sensor module 4 has a transmitter unit 27 for wireless transmission of measurement signals of the sensor elements 12, 20, 21 mentioned and signals derived therefrom and the warning signals already mentioned to an external receiver unit (not shown).
  • an evaluation unit 29 can also be provided in the function module 5 for evaluating the measurement signals from the sensor element 21.
  • the evaluation units 13, 29 can also be used to derive further information from the measurement signals, such as, for example, the extent of a load restricting the service life of the object 2 or the extent of a damaging effect of the environment on the object 2.
  • a memory unit 30, 31 for storing measurement signals of the sensor elements 12, 20, 21 or signals or data derived therefrom can also be arranged.
  • the function module 5 can be separated from the adapter and from the sensor module 3 without a signal or a warning signal being triggered thereby. However, if the modules are disconnected unannounced, an alarm is triggered in the platform of the overall system. Alternatively, if the ID chip of the function module 5 is checked regularly by the sensor module 4, a warning signal could also be triggered directly here. In any case, it is possible to maintain, calibrate the function module 5, read out measurement signals and / or data stored in it and / or replace it with another function module 5, for example in order to replace the sensor module 4 with a new or charged energy store 24 to connect and / or to attach another function module 5 to the object 2 with (additional or supplementary) sensor elements 21, which are particularly suitable for monitoring the object.
  • FIG 5 is another view of the one already in Figures 1-4
  • the embodiment shown shows, in which a state of the sensor system 1 can be seen in which the connection between the sensor module 4 and the adapter does not exist, but the functional module 5 and the sensor module 4 are pulled out of the adapter 3. It can be seen here that in this state the area 15 of the adapter 3 and thus the through holes 16, through which the fastening means 11, not shown in this figure, and in which the screw heads of which come to rest, are accessible without being destroyed. In this state, the adapter 3 can thus be separated from the object 2 without having to cause destruction or damage.
  • the adapter 3 is designed as a U-shaped, flat frame and a first longitudinal strut 32 and a second longitudinal strut 33 and at least one cross strut 34 connecting the first longitudinal strut 32 to the second longitudinal strut 33.
  • the sensor module 4 and the function module 5 are in the mentioned state, in which the connections between the sensor module 4 and the adapter 3 and between the function module 5 and the adapter 3 exist, side by side between these longitudinal struts 32, 33 and Cross strut 34 positioned and are at least partially framed by the aforementioned longitudinal struts 32, 33 and the cross strut 34.
  • the adapter 3, the sensor module 4 and the functional module 5 for establishing the connections mentioned between the sensor module 4 and the adapter 3 and between the functional module 5 and the adapter 3 have mutually complementary connecting elements 35, 36, 37 which can each be configured in the form of a rail or tongue, a groove, a depression or in the form of a latching element, so that the connection mentioned can be repeatedly made and released again.
  • the connecting elements 36 provided on the sensor element 4 and the connecting elements 37 provided on the functional module 5 are grooves
  • the connecting elements 35 provided on the adapter 3 and complementary thereto are designed as rails or springs.
  • connecting elements 35, 36, 37 are in mutual engagement, so that the sensor module 4 and the functional module 5 are positively connected to the adapter 3.
  • the sensor module 4 and the functional module 5 are held in place by a frictional connection between the connecting elements 35, 36, 37.
  • the named connecting elements 35, 36, 37 are arranged on side surfaces of the sensor module 4, the functional module 5 and the adapter 3, in the case of the adapter 3, on mutually facing sides of the longitudinal struts 32, 33.
  • a maximum height h of the adapter 3 is not greater than a maximum height H of the sensor element 4 and the functional module 5.
  • the maximum height h of the adapter 3 is even less than the maximum height H of the sensor element 4 and the functional module 5, so that they protrude beyond the adapter 3.
  • the sensor system 1 has a circuit.
  • This circuit comprises a conductor loop 39 which is only partially shown and which is guided through part of the object 2 - in the present case through a canvas 40 of the object 2 with which it is interwoven - and which can alternatively or additionally also be glued to the object 2 , and two (only one is shown) connected to the conductor loop 39 and extending through the adapter 3 through sections 41 of the circuit and a further section 42 through the sensor module 4 of the circuit.
  • the conductor loop 39, the sections 41 of the circuit extending through the adapter 3 and the further section 42 of the circuit extending through the sensor module 4 are interconnected connected so that the circuit as a whole is closed.
  • the aforementioned signal generator 18 of the sensor module 4 is (also) set up to detect an interruption in this circuit (as a change in the electrical resistance of the circuit) and then, as described above, to generate a signal triggered thereby.
  • a separation of the adapter 3 from the object 2 is therefore only possible by cutting the conductor loop 39.
  • the signal generator 18 can detect this and, as described above, generate a signal triggered thereby.
  • connection elements 35, 36 which of course can be implemented regardless of the type of signal transmitter 18 designed to detect detachment of the sensor module 4 from the adapter 3.
  • the connecting element 35 provided on the adapter 3 is here provided by an L-shaped rail and the connecting element 36 on the sensor module 4 is accordingly provided by an L-shaped groove. So pose the connecting elements 35, 36 establish a positive connection between the adapter 3 and the sensor module 4 without the adapter 3, as in the previous exemplary embodiment, having to have two longitudinal struts 32, 33 lying opposite one another.
  • the adapter 3 can also be provided by a single strut or a simple plate in the form of a straight strip.
  • the sensor module 4 can be pushed together with the adapter 3 and also pulled out again, the latter, however, not unnoticed because of the signal transmitter 18.
  • the latter can have a stop, not shown here, for example at one end of the rail, which forms the connecting element 35.
  • the rail and the groove which form the connecting elements 35, 36 can also have other cross sections, for example the rail can be designed as a T-profile or with a wedge-shaped cross section or as a bead seated on a web. Groove and rail can also be interchanged, so that the adapter 3 has a groove and the sensor module 4 has a rail guiding the groove.
  • FIGs 7 and 8 A further exemplary embodiment of a sensor system 1 for monitoring an object 2 is shown, which, like the sensor systems 1 described above, is made in several parts. It shows Figure 8 one in Figure 7 cross-section of the sensor system 1, designated BB, deviating from the previous explanations, a first part of the sensor system 1, which is fastened directly to the object 2 with the fastening means 11, again provided by screws, is given here by the sensor module 4 itself. In this case too, the sensor module 4 again contains in particular a sensor element 12 for detecting at least one variable that is of interest for the monitoring of the object 2.
  • a second part of the sensor system 1 from FIGS Figures 7 and 8 namely the function module 5 with the energy store 24 serving to supply the sensor module 4, is detachably connected to the first part.
  • the detachable connection between the two parts of the sensor system 1 is established with the aid of two mutually complementary connecting means 35 and 36, namely a rail provided on the sensor module 4 and a groove in the function module 5 receiving this rail.
  • the two parts can therefore simply be pushed together.
  • the part given here by the sensor module 4 with the adapter 3 is the previous one Embodiments comparable and the part given here by the function module 5 with the sensor module 4 of the previous embodiment.
  • a signal transmitter 18 provided in the sensor module 4 is set up to detect a loosening of the connection between the two parts and to trigger a signal in the event of a loosening of this connection.
  • the signal transmitter 18 has a sensor element 18 ′, for example in the form of a microswitch, which interacts with a bulge 19 now provided on the function module 5. The two parts cannot be separated from each other without being noticed.
  • the functional module 5 now has a widening 14 which covers an area 15 with the fastening means 11, as long as the functional module 5 is connected to the sensor module 4.
  • the attachment of the first part to the object 2 cannot therefore be released without being destroyed.
  • the sensor system 1 as a whole cannot be separated from the object 2 without being noticed even in this embodiment.
  • the energy storage device 24 can also be replaced here relatively easily by temporarily separating the functional module 5 from the sensor module 4.
  • FIG. 9 Another embodiment is in the Figures 9 and 10 shown, the Figure 10 a cross section through the in Figure 9 reproduces the sensor module 1 shown at the point labeled BB there. It is a further development of the execution from the Figures 1-5 . In a departure from this, the cross strut 34 of the adapter 3 is designed somewhat wider here and has two recesses 28 and 38.
  • a functional element 26 is arranged in the recess 38 and is connected to the sensor module 4 by a detachable plug connection.
  • the functional element 26 can be, for example, an additional sensor for measuring a measured variable that is of interest for the monitoring of the object 2, but is not yet taken into account by the sensor elements 12, 20, 21.
  • the functional element 26 can also be a memory or an ID chip, for example.
  • the recess receiving the functional element 26 is 38 covered by the widening 14 of the sensor module 4.
  • the widening 14 extends not only over the second longitudinal strut 33, but also over the cross strut 34.
  • the functional element 26 is thereby blocked in the recess 38 and its plug connection is locked with the second part. Since neither the entire sensor system 1 nor the sensor module 4 can be removed without being noticed, it is also impossible to replace or remove the functional element 26 without being noticed.
  • FIG. 9 shows in the Figures 9 and 10 Sensor system 1 shown an external sensor 7.
  • This can be used in particular to detect an illuminance or radiation intensity on a front side of the work of art and is therefore not arranged within the sensor module 4 or the function module 5.
  • the external sensor 7 is arranged outside or on a front side of the frame 6 and is only connected to the sensor module 4 via a cable connection and a plug 8.
  • the plug 8 can also not be pulled out unnoticed because it is blocked in the recess 28 and because its plug connection with the sensor module 4 is locked as long as the adapter 3 is fastened to the frame 6 with the fastening means 11. However, this attachment cannot be undetected because it cannot be released without being destroyed in the state in which the sensor module 4 is connected to the adapter 3.
  • the recess 28 provided here on the side of the adapter 3 facing the frame 6 can instead also be provided like the recess 26 on the side facing away from the frame 6 and then covered by the widening 14.
  • the recess 38 for the functional element 26 can also be provided in a modification, like the recess 28 of the present exemplary embodiment, at a point facing the frame 6.
  • FIGs 11 to 13 A further embodiment of a sensor system 1 of the type proposed here is shown.
  • a cross section through this sensor system is in Figure 12 at one in the side view Figure 11 shown with AA.
  • Figure 13 is an enlarged section of the cross section shown the in Figure 12 is marked by a circle.
  • the embodiment differs from Figures 11 to 13 only in that it is additionally equipped with a locking device with which an unwanted loosening of the connection between the sensor module 4 and the adapter 3 can be prevented when the functional module 5 is separated from the adapter 3 and the sensor module 4.
  • the locking device locks the connection between the sensor module 4 and the adapter 3 in the state in which this connection exists, whereby this locking is blocked and cannot be released as long as the connection between the sensor module 4 and the functional module 5 exists.
  • the locking device in the present case has two locking elements 43 which are movably articulated on the sensor module 4 and for each of these locking elements 43 a receptacle 44 provided on the adapter 3.
  • the locking elements 43 are molded onto a housing of the sensor module 4 here and can be deflected elastically.
  • the locking elements 43 could also be movably mounted in or on the sensor module 4 in another way. In the state in which there is a connection between the sensor module 4 and the adapter 3, the locking elements 43 are pressed into the receptacles 44.
  • the functional module 5 in turn has a recess 45 for each of the locking elements 43, which is shaped in such a way that the functional module 5 bears against the locking elements 43 in the state in which the connection between the sensor module 4 and the adapter 3 exists and thus movement of the locking elements 43 out of the receptacles 44 is prevented as long as the connection of the functional module 5 with the sensor module 4 and the adapter 3 exists.
  • the locking elements resting in the receptacles 44 prevent the sensor module 4 from moving. It is thus excluded that when the function module 5 is removed — for example for changing or charging the energy store 24 — the sensor module 4 is accidentally pulled out, which increases the monitoring of the object to be protected 2 would interrupt.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Claims (15)

  1. Système de détection (1) pour surveiller un objet (2), comprenant au moins un premier élément et un second élément, dont le second élément est un module de détection (4) avec au moins un capteur et le premier élément étant un adaptateur (3) permettant de relier le module de détection (4) avec l'objet (2), ainsi qu'au moins un moyen de fixation (11) permettant une fixation du premier élément sur l'objet (2) à surveiller, le premier élément et le second élément étant agencés pour établir une liaison amovible entre le second élément et le premier élément, et l'un des éléments mentionnés étant doté d'un transmetteur de signaux (18) agencé pour détecter un détachement de ladite liaison entre le second élément et le premier élément et pour générer un signal déclenché de ce fait, ladite fixation du premier élément sur l'objet (2) n'étant pas détachable de manière non destructive dans un état dans lequel ladite liaison existe entre le second élément et le premier élément,
    caractérisé en ce que le système de détection (1) comprend en outre au moins un module fonctionnel (5) agencé à la fois pour une liaison amovible avec le module de détection (4) et pour une liaison amovible avec l'adaptateur (3).
  2. Système de détection (1) selon la revendication 1, caractérisé en ce que le système de détection (1) comprend en outre un dispositif de verrouillage qui est conçu pour verrouiller le module de détection (4) avec l'adaptateur (3) dans l'état dans lequel la liaison existe entre le module de détection (4) et l'adaptateur (3), ce verrouillage étant bloqué et/ou non détachable tant qu'existe la liaison entre le module de détection (4) et le module fonctionnel (5).
  3. Système de détection (1) selon la revendication 2, caractérisé en ce que le dispositif de verrouillage comprend au moins un élément de verrouillage (43) monté ou articulé de manière mobile dans ou sur le module de détection (4) ainsi qu'au moins un logement (44) prévu sur l'adaptateur (3) pour l'élément de verrouillage (43), le module fonctionnel (5) étant formé de telle manière qu'il empêche un mouvement de l'élément de verrouillage (43) hors du logement (44) dans l'état dans lequel la liaison existe entre le module de détection (4) et l'adaptateur (3), si la liaison entre le module fonctionnel (5) et le module de détection (4) et/ou l'adaptateur (3) existe.
  4. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier élément comporte une zone (15) avec un accès au moyen de fixation (11), ledit accès étant bloqué par le second élément dans l'état dans lequel ladite liaison existe entre le second élément et le premier élément.
  5. Système de détection (1) selon la revendication 4, caractérisé en ce que le second élément présente au moins un renflement ou un élargissement (14) ou une saillie ou une flèche qui cache ladite zone (15) avec l'accès au moyen de fixation (11) dans l'état dans lequel ladite liaison existe entre le second élément et le premier élément.
  6. Système de détection (1) selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que la premier élément présente dans ladite zone (15) au moins une ouverture de passage (16) s'étendant à travers le premier élément.
  7. Système de détection (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le premier élément et le second élément comprennent des éléments de liaison (35, 36) de conception complémentaire pour réaliser ladite liaison entre le second élément et le premier élément
    et/ou le moyen de fixation (11) ou au moins un des moyens de fixation (11) est une vis, un rivet ou un adhésif qui est détachable de préférence électriquement et/ou thermiquement
    et/ou ladite fixation du premier élément sur l'objet (2) peut être détachée de manière non destructive dans un état dans lequel ladite liaison entre le second élément et le premier élément n'existe pas
    et/ou le module fonctionnel (5) et le module de détection (4) présentent chacun au moins une interface (22, 23) pour un échange de données et/ou pour une transmission d'énergie entre le module de détection (4) et le module fonctionnel (5).
  8. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de détection (1) présente un circuit électrique comprenant une boucle conductrice (39) et au moins une section (41) du circuit électrique connectée à la boucle conductrice (39) et s'étendant à travers le premier élément, et une autre section (42) du circuit électrique s'étendant à travers le second élément, la section du circuit (41) s'étendant à travers le premier élément et l'autre section (42) du circuit s'étendant à travers le second élément sont connectés ensemble pour fermer le circuit dans l'état dans lequel ladite connexion existe entre le second élément et le premier élément, le transmetteur de signaux (18) étant agencé pour détecter une coupure dans le circuit électrique et ainsi générer ledit signal déclenché.
  9. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le transmetteur de signaux (18) présente un élément de détection (18') pour détecter un détachement de ladite liaison entre le second élément et le premier élément, l'élément de détection (18') étant conçu comme un capteur à contact, comme un bouton-poussoir ou un interrupteur mécanique, un élément magnétique, un élément piézoélectrique ou piézorésistif, un capteur capacitif ou inductif, un capteur optique, un capteur de température ou en tant qu'élément d'une boucle conductrice (39).
  10. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le au moins un capteur du module de détection (4) comprend au moins un élément de détection (12, 20) pour la détection d'une température et/ou d'une humidité relative et/ou d'une intensité de rayonnement et/ou de vibrations et/ou de polluants et/ou de signaux de localisation d'un système de localisation de préférence assisté par satellite.
  11. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend en outre au moins une fiche (8) connectée à un capteur externe (7) et/ou un élément fonctionnel (26) agencés pour une connexion à fiche amovible avec le second élément du système de détection (1), le premier élément du système de détection (1) comprenant un évidement (28, 38) qui loge la fiche (8) respectivement l'élément fonctionnel (26), la fiche (8) respectivement l'élément fonctionnel (26) étant bloqué dans cet évidement (28, 38) et sa connexion à fiche étant verrouillée avec le second élément dans ledit état dans lequel le second élément est relié au premier élément lorsque le premier élément est fixé avec au moins un moyen de fixation (11) sur l'objet (2).
  12. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le transmetteur de signaux (18) est un composant du module de détection (4) et/ou que l'adaptateur (3) est conçu comme une plaque ou comme un cadre.
  13. Système de détecteur (1) selon l'une des revendications précédentes, caractérisé en ce que l'adaptateur (3) comprend une première entretoise longitudinale (32) et une deuxième entretoise longitudinale (33) ainsi qu'au moins une entretoise transversale (34) reliant la première entretoise longitudinale (32) avec la deuxième entretoise longitudinale (33), le module de détection (4) étant positionné entre la première entretoise longitudinale (32) et la deuxième entretoise longitudinale (33) dans ledit état dans lequel la connexion existe entre le module de détection (4) et l'adaptateur (3).
  14. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend au moins deux adaptateurs (3) pouvant être utilisés alternativement comme premier élément et qui présentent chacun une surface de contact, la surface de contact (9) en cas de fixation conforme de l'adaptateur (3) respectif sur l'objet à surveiller (2) étant en face d'une surface (10) de l'objet (2), la surface de contact (9) d'un premier desdits adaptateurs (3) ayant une taille et/ou une courbure différente d'une taille et/ou d'une courbure de la surface de contact (9) d'un deuxième desdits adaptateurs (3).
  15. Système de détection (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le au moins un adaptateur (3) présente une surface de contact (9) qui, en cas de fixation conforme de l'adaptateur (3) sur l'objet à surveiller (2), fait face à une surface (10) de l'objet (2) dans ledit état dans lequel la liaison entre l'adaptateur (3) et le module de détection (4) existe, une hauteur maximale (H) du au moins un adaptateur (3) n'étant pas supérieure à une hauteur maximale (h) de l'élément de détection (4), lesdites hauteurs (h, H) étant définies comme étant des dimensions dans une direction perpendiculaire par rapport à ladite surface de contact (9) de l'adaptateur (3).
EP18199006.0A 2012-09-13 2013-09-11 Système de capteurs de surveillance d'un objet Active EP3444787B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012018620.7A DE102012018620B4 (de) 2012-09-13 2012-09-13 Sensorsystem zum Überwachen eines Objekts
PCT/EP2013/068830 WO2014041025A1 (fr) 2012-09-13 2013-09-11 Système de capteurs de surveillance d'un objet
EP13762110.8A EP2896024B1 (fr) 2012-09-13 2013-09-11 Système de capteurs de surveillance d'un objet

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP13762110.8A Division EP2896024B1 (fr) 2012-09-13 2013-09-11 Système de capteurs de surveillance d'un objet

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EP3444787A1 EP3444787A1 (fr) 2019-02-20
EP3444787B1 true EP3444787B1 (fr) 2020-04-15

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EP18199006.0A Active EP3444787B1 (fr) 2012-09-13 2013-09-11 Système de capteurs de surveillance d'un objet
EP13762110.8A Not-in-force EP2896024B1 (fr) 2012-09-13 2013-09-11 Système de capteurs de surveillance d'un objet

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EP (2) EP3444787B1 (fr)
DE (2) DE102012018620B4 (fr)
WO (1) WO2014041025A1 (fr)

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DE102012018620B4 (de) 2012-09-13 2014-04-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sensorsystem zum Überwachen eines Objekts

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WO1988003689A1 (fr) * 1986-11-15 1988-05-19 John Bryan Clough Dispositif de securite
DE3811912A1 (de) * 1988-04-09 1989-11-09 Telefunken Electronic Gmbh Sicherungsgeraet mit einem hf-empfaenger
DE9013431U1 (fr) * 1990-09-06 1991-06-06 Zander, Hans, 4836 Herzebrock, De
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EP0773520A4 (fr) * 1994-07-29 1997-10-08 Kubota Kk Appareil d'alarme antivol et recepteur radio
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CA2340533A1 (fr) * 2001-03-13 2002-09-13 Claude Houde Systeme de securite a fibres optiques
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NL1031220C2 (nl) * 2006-02-20 2007-08-21 A C Pasma Holding B V Diefstalbeveiliging.
DE102008009491B4 (de) * 2008-02-15 2010-02-04 Rainer Brenner Vorrichtung zur Sicherung von Waren
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Also Published As

Publication number Publication date
DE112013004460B4 (de) 2021-01-28
US9824555B2 (en) 2017-11-21
EP2896024B1 (fr) 2018-11-07
EP3444787A1 (fr) 2019-02-20
WO2014041025A1 (fr) 2014-03-20
US20150221192A1 (en) 2015-08-06
DE112013004460A5 (de) 2015-05-28
DE102012018620B4 (de) 2014-04-03
DE102012018620A1 (de) 2014-03-13
EP2896024A1 (fr) 2015-07-22

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