EP1008971A2 - Monitoring system with hanging device for electrically conductive objects - Google Patents

Abstract

The theft prevention hanging device has an elongate fixing (1016) attached to a room wall and provided with at least 2 current paths (1018,1020), cooperating with at least one contact element (1024) of a hanging hook (1022A) for each hanging object, which can slide along the elongate fixing, for providing a closed monitoring circuit. Also included are Independent claims for the following: (a) a monitoring device for a hanging object; (b) a monitoring system for a hanging object

Description

The present invention relates to a monitoring system with an associated hanging device for Hanging objects to be contacted electrically, in particular art objects are provided with electrical safety and / or lighting devices. The invention relates also a monitoring unit for objects of the type mentioned.

A surveillance system of the generic type is described in the article "Protecting Paintings from Theft "by J.R. Knisley, Electrical Construction and Maintenance 76 (2/1977), page 62 It is an anti-theft device for exhibited paintings, being on the wall behind The hanging paintings are attached to metal rails, which are connected via three-core cables corresponding plugs are electrically connected to each other, with each rail having one for each picture Has socket, in which a three-pin plug can be inserted to by means of a three-wire Cable to connect a mini switch to the three-wire system of the rails. Every mini switch is attached with a wood screw and an adhesive surface on the back of the painting frame. In In this position the circuit is closed by the switch. Every move on that Painting frame breaks the switch away from the painting frame, causing the switch by means of a Preload spring comes into a position in which the circuit is interrupted by the switch. The three-wire system of the rails is connected to an alarm unit. As soon as the alarm unit is one If the circuit is interrupted, it triggers a corresponding theft alarm. It will not mentioned in more detail how the paintings are hung.

It is an object of the present invention, a monitoring system and an associated one To provide a hanging device for hanging objects to be contacted electrically, which is characterized by particularly easy handling and application and as convenient as possible Items can be hung.

It is a further object of the present invention to provide the associated hanging device for Suspend objects to be contacted electrically so that they are inexpensive, visual is designed to be appealing and easy to use.

It is another object of the present invention to provide a monitoring unit for attachment to to create surveillance objects that is simple and functional.

It is also an object of the present invention to provide the article surveillance system design that it is reliable and user-friendly and a high security standard guaranteed.

According to the invention, these objects are achieved by a monitoring system according to claims 45, 61 and 64 and associated subclaims, further by a hanging device according to claims 1 and 31 and associated subclaims, and further by a monitoring unit according to Claim 65.

The hanging device according to the invention is very inexpensive, visually appealing and designed to be user-friendly. The monitoring unit according to the invention can be inexpensive be made and is still reliable. The monitoring system according to the invention 45ff offers a high level of security with ease of use, while the Monitoring system according to claim 61 in a simple manner for good sensitivity.

Preferred embodiments of the hanging device according to the invention, the inventive one Monitoring unit and the monitoring system according to the invention result from the Subclaims.

In the following, the one provided in the monitoring system according to the invention is first described Hanging device presented. In the solution defined in claim 1, it is advantageous that only a single attachment unit is required to hang the items as they already has at least two current paths and thus for a complete, d. H. bipolar, contacting suitable is. Furthermore, it is advantageous that due to the displaceability of the suspended Fasteners are the final location for a particular item when fixed installed mounting unit can be chosen flexibly.

The fasteners can be designed so that they ensure a selectability to which the current paths the or each contact element makes an electrical contact. This allows one uniform design of each fastener, so that only a uniform basic type of Fasteners are required.

According to an alternative embodiment of the hanging device, at least two types of Fastening elements can be provided, which are arranged by the arrangement of their contact elements distinguish that in the suspended state with each fastener type the at least one Contact element contacted another current path.

In a first embodiment of the fastening elements according to the invention, the selectability is thereby ensures that the contact depends on the orientation in which the or each Fastening element is hooked into the fastening unit. This eliminates any need to adjust the fastener to the desired type of contact, it only has to Orientation when hanging is selected accordingly. In this embodiment, the Contact elements expediently firmly attached to the fasteners. At a preferred embodiment, each fastener is substantially mirror-symmetrical with respect formed its center plane, two contact configurations are provided, between which can be selected by rotating the orientation of the fastener by 180 °.

In a second embodiment of the fastening elements according to the invention, the Guaranteed selectability achieved in that only one type of contact elements is provided and each contact element before hanging the fastener in different places of the Fastening element can be used to determine the current path to be contacted. In In this case, the basic type of fasteners will be the desired one before insertion Contact configuration set.

Alternatively, according to a third embodiment, the selectability can also be achieved in that at least two types of contact elements are provided and the contact elements before hanging of the fastener are used at a specific location on the fastener, wherein the choice of the contact element locations determines the current path to be contacted.

Alternatively, according to a fourth embodiment, the eligibility can also be achieved by that only a single type of fastening unit, a single type of contact element and only a single one Variety fastener is provided, with targeted localization of contact and Fastening element made on or on the fastening unit a desired contact can be.

The fastening unit is preferably designed in the manner of a rail, with a partial interior enclosing profile part and each current path than in the interior on the profile part applied busbar is formed, wherein the profile part is preferably electrically insulating is trained. The contact elements are preferably designed as loop springs.

In a first embodiment, the profile part is preferably channel-shaped with three essentially closed sides and a side provided with a continuous elongated opening formed, wherein the fasteners can be suspended by means of the opening in the profile part.

Alternatively, the profile part can be channel-shaped with three sides, with its rear side is attachable to a wall, the front is essentially open and the top with a is provided first slot and the underside is provided with a second slot, the Fastening elements can be hooked into the first slot with their upper end and with their lower end End can be snapped into the second slot.

Panel parts are preferably provided which extend into the opening or the open side of the profile part can be used and preferably with contact elements for contacting the current paths and with electronic devices connected to these contact elements.

As an alternative to the rail-like design of the fastening unit, the contact elements can thus be designed so that they serve to hang the fasteners in the fastening unit. The fastening unit preferably comprises several to be fixed in place in a row Holding elements and at least two parallel tubular or rod-shaped current guides, the Current leads are held by the holding elements. The contact elements are designed so that they can each be hooked into one of the current guides. There is preferably one for each contact element appropriately designed insulated auxiliary element arranged in one of the current guides can be attached. In this embodiment, the selectability of the contact configuration is thereby achieved that the contact configuration depends on the orientation of the fastener when hanging depends.

Each fastening element preferably has an eyelet for hanging one with the one to be hung Object connected suspension element, which is conductively connected to the or each contact element is. The hanging elements are preferably designed as electrically conductive ropes or chains. At the objects to be hung are preferably works of art that are made with electrical safety and / or lighting devices are provided. The current paths are with a power source and / or a control unit connected to make electrical contact between the Power source and / or the control unit and the corresponding security and / or To produce lighting devices on the art objects via the hanging device.

Fig. 1 bis 5 schematisch verschiedene Sicherheits- bzw. Beleuchtungssysteme für aufgehängte Kunstgegenstände;

Fig. 6 eine Schnittansicht einer ersten Ausführungsform einer erfindungsgemäßen Hängevorrichtung;

Fig. 7 eine Ansicht ähnlich zu Fig. 6, wobei jedoch eine Abwandlung der ersten Ausführungsform mit arretiertem Befestigungselement gezeigt ist;

Fig. 8 eine Ansicht wie Fig. 7, wobei jedoch das Befestigungselement beim Einhängen bzw. Aushängen dargestellt ist;

Fig. 9 eine Ansicht wie Fig. 6 bis 8, wobei jedoch eine zweite Ausführungsform der Hängevorrichtung dargestellt ist;

Fig. 10 eine Ansicht der Kontaktfeder aus Fig. 9;

Fig. 11 eine Vorderansicht der Befestigungseinrichtung von Fig. 9 mit aufgesetzter Blende;

Fig. 12 eine Ansicht ähnlich zu Fig. 6 bis 9, wobei jedoch eine dritte Ausführungsform der Hängevorrichtung dargestellt ist;

Fig. 13 eine Schnittansicht einer vierten Ausführungsform einer Hängevorrichtung;

Fig. 14 eine Aufsicht auf ein Befestigungselement zur Verwendung mit der in Fig. 13 gezeigten Befestigungseinrichtung;

Fig. 15 und 16 eine Schnittansicht an unterschiedlichen Stellen der Hängevorrichtung von Fig. 19;

Fig. 17 eine Aufsicht auf eine erfindungsgemäße Überwachungseinheit in einer ersten Ausführungsform, die an einem zu überwachenden Gegenstand befestigt ist;

Fig. 18 eine Rückansicht einer zweiten Ausführungsform einer erfindungsgemäßen Überwachungseinheit;

Fig. 19 eine schematische Gesamt-Ansicht einer weiteren erfindungsgemäßen Hängevorrichtung, im Zusammenspiel mit einem erfindungsgemäßen Überwachungssystem.

In the following several embodiments of the invention are explained in more detail by way of example with reference to the accompanying drawings. Show it:

Figures 1 to 5 schematically different security or lighting systems for suspended art objects;

6 shows a sectional view of a first embodiment of a hanging device according to the invention;

FIG. 7 is a view similar to FIG. 6, but showing a modification of the first embodiment with the fastening element locked;

FIG. 8 is a view like FIG. 7, but with the fastening element being shown when hanging or unhooking;

9 is a view like FIGS. 6 to 8, but showing a second embodiment of the hanging device;

FIG. 10 is a view of the contact spring from FIG. 9;

FIG. 11 shows a front view of the fastening device from FIG. 9 with the cover attached; FIG.

12 is a view similar to FIGS. 6 to 9, but showing a third embodiment of the hanging device;

13 is a sectional view of a fourth embodiment of a hanging device;

FIG. 14 is a top view of a fastener for use with the fastener shown in FIG. 13;

15 and 16 a sectional view at different locations of the hanging device from FIG. 19;

17 shows a plan view of a monitoring unit according to the invention in a first embodiment, which is attached to an object to be monitored;

18 shows a rear view of a second embodiment of a monitoring unit according to the invention;

19 shows a schematic overall view of a further hanging device according to the invention, in interaction with a monitoring system according to the invention.

The monitoring device shown in FIG. 1 is used to monitor cables 12A, 12B in an exhibition room hung pictures 10A, 10B. Each image 10A, 10B is on the back with a resistor RA or RB, which is conductively connected to the cables 12A and 12B, respectively is. An individual resistance value is assigned to each image 10A, 10B in order to provide the images for the To make monitoring device distinguishable. On the wall or on the ceiling of the In the exhibition room, a rail 14 is attached, which is connected to two continuous current paths 16 and 18 is provided, each of which is connected to a control unit 20 which is powered by a power source 22 Electricity is supplied. The ropes 12A, 12B are designed as electrical conductors, preferably as Metal cables, and are connected at one end to one of the current paths 16 and 18, respectively for an electrical connection between the control unit 20 and the respective resistor RA or To worry RB. The resistors RA and RB are thus in an electrical parallel connection arranged, the control unit 20 the current through the formed by the parallel connection Entire loop detected and an alarm signal to a in the event of deviations from a predetermined setpoint Alarm device 24 sends, which then generates an acoustic or visual warning signal. Each Removing an image 10A, 10B by unhooking at least one of the ropes 12A, 12B increases the Resistance in the overall loop and can thus be detected by the control unit 20. As a result of that each resistance value is assigned only once, the control unit 20 can from the detected Change in resistance determine which of the images is being manipulated.

2 shows a digital form of a monitoring device, the identification of each picture 10A, 10B via a logic unit mounted on the back of the picture frame 150a, 150b takes place, each of which comprises a microprocessor as an essential component. Doing so each image 10A, 10B by a digital code value assigned only once, which is transmitted by digital Memory, dip switches, wire jumpers and the like is fixed to the logic unit 150a, 150b, identified. Communication between the control unit 120 and the logic units 150a, 150b takes place via a serial three-wire bus system (e.g. 12C bus). The mounting rail 114 includes For this purpose, three parallel current paths 116, 117, 118, the current path 116 as a ground connection serves and the current paths 117 and 118 serve as a receive or transmit line. To images 10A, 10B on the mounting rail 114 and around each logic unit 150a, 150b with the bus system connect, three electrically conductive cables 12A, 12B are provided per picture. Current tracks 116, 117 and 118 can simultaneously serve as a power supply for the logic unit 50a, 50b or else it will be one or two additional current paths and corresponding additional ropes for the Power supply to the logic unit provided. The monitoring function is implemented so that the Control unit 120 via the bus system, i. H. the current paths 116, 117, 118 and the cables 12A, 12B, Sends signals to the logic units 150a, 150b which receive them and depending on the acknowledged code value assigned to the special logic unit 150a or 150b. In the absence of one Acknowledgment signal is triggered by the control unit 120 by a corresponding alarm signal to the alarm unit 24 an alarm. Since the acknowledgment function is different for each picture, the control unit can 120 recognize which image has been manipulated.

FIG. 3 shows a further digital form of the monitoring device, whereby instead of one Three-wire bus system, a simpler bidirectional two-wire bus system is used, which can also take over the power supply of the logic unit 250A, 250B. The Fastening rail 214 has two current paths 216, 218, with which the electrically conductive cables 12A 12B are connected to form the two-wire bus system, this bus system being both the Data exchange between the logic units 250A, 250B and the control unit 220 as well Power supply for the logic units 250A, 250B takes over. In addition, the mounting rail 214 two current paths 226, 228, which serve as a power supply for lighting elements 252A, 252B serve, which are each attached to the mounting rail 214 above each image 10A, 10B.

The lighting elements 252A, 252B can be, for example, sofa lamps or one Act light-emitting diode arrangement to protect the color pigments of the painting. The attachment and The lighting elements 252A, 252B can also be contacted electrically, for example conductive ropes or cables 254A, 254B, which are connected to the current paths 226, 228. Each depending on the type of lighting elements used, it is also conceivable that the power supply to the Illumination elements also take place via the current paths 216, 218 provided for the bus system, so that in this case the additional power supply tracks 226, 228 can be omitted. The Illumination elements 252A, 252B can also be provided with a motion detector 256A, 256B, whose power supply also takes place via the contact strips 226, 228 and that via the current paths 216, 218 is connected to the control unit 220 in order to detect conspicuous movements in the area of the images 10A, 10B to report to the control unit 220, which then optionally sends an alarm signal to the alarm unit 24 sends. The motion detector 256A, 256B can work optically or capacitively. By means of the Motion detector 256A, 256B can also be implemented to indicate when a person or object comes too close to images 10A, 10B. The motion detector 256A, 256B can also serve the lighting elements 252A, 252B only then to switch on when a person is in the vicinity of the corresponding image 10A, 10B in order to on the one hand to save energy and on the other hand to use the color pigments of images 10A, 10B whenever possible little light.

It is also conceivable to use the lighting elements 252A, 252B directly with the cables 12A, 12B Attachment and power supply to connect, so that the lighting elements 252A, 252B not with the mounting rail 214 are connected.

The logic units 250A, 250B can also be designed so that they exchange data with the Control unit 220 in addition or as an alternative to using the bus system wirelessly accomplish, wherein the logic units 250A, 250B are then designed as a transceiver and the control unit 220 is equipped with an additional transmitter / receiver unit 258 (in FIG. 3 shown in dashed lines).

4, if only lighting, but no monitoring of the objects may be required is dispensed with a control unit and the corresponding monitoring elements. In this In this case, the lighting elements 252A, 252B can be attached to the images 10A, 10B via the electrically conductive suspension cables 12A, 12B of FIGS. 10A, 10B, which are connected to the current paths 16, 18 the mounting rail 14 are connected, which in turn are connected to the power source 22 with Electricity supplied. The lighting elements 252A, 252B can also be “intelligent”, i. H. with circuit breaker and decoding logic, so that a centrally controlled selective on / off individual or all lighting elements is possible. This control function can be done via the Power supply lines or additional control lines can be implemented.

5 shows an alternative embodiment in which the lighting elements 252A, 252B are not shown 10A, 10B are attached, but are directly clamped to the suspension cables 12A, 12B. Out For safety reasons, the cables 12A, 12B used for the power supply should be insulated accordingly.

In general, the electrically conductive suspension cables can be used for safety reasons or in the interest of one outside operation should be provided with external insulation wherever possible. If necessary, a Suspension rope also provide two electrical connection lines, e.g. in the form of a coaxial or Twisted pair arrangement.

In the described security / lighting systems it is advantageous that a simple Suspension system is realized, which is a very simple and flexible suspension, monitoring and / or Illumination of pictures allowed. These systems are not just for exhibited works of art suitable, but can for any to be monitored, exhibited and if necessary illuminating objects are used.

The following description deals with the design of the mounting rails and in which way the suspension cables or elements can be hung in the mounting rails.

Fig. 6 shows a first embodiment for a mounting rail with two current paths, such as Rail 14 in the monitoring and lighting systems shown in FIGS. 1 and 4 as rail 14 can be used. The one designated as a whole in FIG. 6 with the reference number 300 Fastening rail comprises a channel-shaped profile part 302, which is made of metal, for example and is attached to a wall 306 by its rear 304. The front 308 of the profile 302 is with an elongated through opening 310 through which or into which Fastening element 312 is suspended in the profile 302, which has a body 314, which by means of a Pressure spring 316 is pressed downward in the interior 318 enclosed by the profile 302, and a screw eyelet 320 which can be screwed into the body 314. The interior 318 and the Aperture 310 is lined with insulation 322. There are two on the inside of front 308 busbars 324 and 326 arranged in parallel at a distance from one another, which by means of an insulation 328 are insulated from the profile 302.

On the body 314 of the fastening element 312 there is a self-contained contact spring 330 provided, which in the configuration shown in Fig. 6 as sliding contact with the upper Busbar 324 is in electrical contact. The body 314 and the screw eye 320 are conductive formed so that the sliding contact 330 makes electrical contact between the upper busbar 324 and the screw eye 320. One of the electrically conductive ones can be inserted into the screw eye Hanging elements 12A, 12B are hooked to one pole of an electronic monitoring element to be connected to the busbar 324 on an object 10A or 10B to be monitored. Instead of the Screw eye 320 may also use another suitable element, such as a hook become. The fastening element 312 is fundamentally displaceable along the profile 302, the Contact spring 330 regardless of the position of the fastener 312 for one electrical contact to the busbar 324 provides. The pressure spring 316, however, ensures a certain Locking the fastener 312 in the respective position, so that for moving the Fastening element 312 a certain force threshold must be overcome.

According to a first option, the contact spring 330 can be attached to the body 314 so that it protrudes hooking the fastener 312 into the profile 302 in position on the body 314 of Can be adjusted by hand to select the upper one after attaching the fastening element 314 Contact bus bar 324 or the lower bus bar 326.

For this purpose, the contact spring can, for example, between two corresponding positions in which it can be locked, can be moved on the body 314. When hanging one to be monitored Item 10A or 10B is one of the fastening elements 312 required for this on the in Fig. 6th shown configuration for contact with the upper busbar 324 set while the other Fastening element 312 by correspondingly moving the contact spring 330 for contact with the lower busbar 326 is set. With this solution it is advantageous that only one "Basic type" of fasteners 312 is required, depending on the desired Contact configuration can be set before hanging.

The adjustment of the fasteners 312 before hanging can be omitted if two Different types of fasteners 312 are provided, which are determined by the position of the attached contact spring 330 differ, so that by selecting the type of Fastening element 312 the respective contact configuration is set.

FIG. 7 shows a modification of the embodiment according to FIG. 6, the fastening element in FIG mounted state is shown. Fig. 8 shows the fastener of Fig. 7 when hanging or unhooking in or out of the profile part. 7 and 8 is non-conductive, e.g. made of plastic, which means no additional insulation from the fastening element is required. The fastener is approximately L-shaped in cross section, which is Hooking or unhooking through the opening 310 easier. In the one shown in Figs. 7 and 8 Fastening element, in contrast to FIG. 6, the contact spring is designed and contacted in the form of a flag the lower track.

Fig. 9 shows a second embodiment of a hanging device according to the invention. The profile part 500 the fastening unit is similar to that in FIGS. 6 to 8, i. H. it is with its back attached to a wall 306 by means of a screw 504 and has one on its front through opening 510, which also serves to attach the screw 504. Profile 500 can be made of metal or plastic and is essentially symmetrical with respect to one the screw 504 extending median plane. On the inside of the back wall of the profile 500 are one upper bus bar 501 and a lower bus bar 511 are provided, which by means of insulation 502 and 512 are isolated from the profile part 500 and are also symmetrical with respect to the central plane are arranged. The rear wall 503 of the profile 500 is provided with holes for the at regular intervals Provide screws 504. The boundary edges of the opening 510 are each one in the Provide longitudinal slot 513 or 514 of profile 500. The fastener 528 comprises a preferably electrically insulating body 530, the two projections 527 and 526th which, in the suspended state of the fastening element 528, into the slots 513 and 514 intervene, thereby guiding the attached fastener 528 in Ensure the longitudinal direction of the profile. A locking lock or a locking screw 524 is provided.

The fastening element 528 is inserted into the slot by first of all Locking screw 524 is loosened upwards. The slots 513 and 514 are dimensioned so that the Fastener 528 can be inserted into the slot 513 from bottom to top and then can be pivoted slightly backwards so that it can be inserted downwards into the slot 514 can. Then the locking screw 524 can be screwed in again, so that the Fastening element 528 is secured.

The slots 513 and 514 are of different depths so that the fastening element 528 is symmetrical can be trained, which ensures good aesthetics and easier handling. A senior Screw eye 522 is guided through the body 530 and by means of a nut 523 on the body 530 attached. The nut 523 also holds a contact spring 520 in the position shown in FIG. 9 is in electrical contact with the upper busbar 501 and the screw eye 522. 10 the contact spring 520 is provided with contact spring slots 531 in order to ensure good contact with the Busbar 501 to worry. The busbars 501, 511 and the contact spring 520 are preferably gold-plated. The fastening element 528 is, apart from the contact spring 520, mirror-symmetrical with respect to an axis that extends through the screw eyelet 522. The contact spring 520 is fixed connected to the body 530. Due to the symmetrical design of the profile 500, the Busbars 501, 511 and the fastening element 528 can instead of the upper busbar 501 easily contact the lower busbar 511 with the contact spring 520 by the whole fastener 528 rotated by 180 ° inserted into the profile 500 or the slots 513, 514 becomes. This embodiment has the advantage that only a single basic type of fasteners must be provided and the user still has no adjustment procedures regarding the hooking the contact elements must make, but he can easily by choosing the Determine the orientation of the fastener when attaching the contact configuration.

The body 530 of the fastener 528 is preferably made of insulating material therewith if necessary, signals can be sent from the interior of the profile 500. The Fastening element 528 can optionally also be equipped with electronics and / or a battery, a Accumulator or an emergency power supply.

In Fig. 11, an aperture or cover strip 529 is shown, which in the slots 513, 514 of the front of the Profiles 500 is used to cover the opening 510. Aperture 529 is preferably off Insulating material made, and can optionally with (not shown) contact springs be provided in order to contact the busbars 501 and 511 and also on the panel 529 provided (not shown) electronic devices or a battery holder to contact. The aperture 529 is primarily used to cover those parts of the opening 510 that are not occupied with a fastening element 528. If the bezel with a battery holder is equipped, the battery used for an emergency power supply to the monitoring device serve in the event of failure of the regular power supply to the busbars 501, 511.

Fig. 12 shows a third embodiment of a hanging device according to the invention, in which the Profile 600 is preferably made of plastic and is attached to the wall 306 with its back 602 is. The top 604 of the profile 600 is provided with a slot 606, while the bottom 608 with a slot 610 is provided. The fastener 628 has a body 632 and a hook 622 which is passed through the body 632 has a thread 621 on which a nut 623 is screwed on to secure the hook to the body 632. Mother 623 also holds one Spring 620 which contacts a bus bar 634 provided on the inside of the upper side 604. The body 632 is designed such that it can be hooked into the slot 606 with its upper end and can be snapped into the slot 610 with its lower end. On the inside of the back 602 is one second busbar 636 is provided. Around fastener 622 before hanging in the profile Prepare 600 for contacting the second busbar 636; can the spring 620 against a differently shaped spring 630 are replaced, which is shown in dashed lines in Fig. 12. Instead of that Fastening elements 628 with an exchange function can also be two different ones Varieties of fasteners 632 are provided, each with a spring 620 or one Spring 630 are firmly connected, the determination of the contacting then via the selection of the variety of the fastener 628.

13 and 14 finally show a fourth embodiment of an inventive Hanging device which differs from the previously described embodiments in that that no rail or profile-shaped fastening unit is provided, but that the Fastening unit of several in a row on a wall 303 holding elements 710 and two parallel tubular or rod-shaped current guides 713 and 714 is formed by the Holding elements 710 are held by means of corresponding sensors 711 and 712. To avoid In order to avoid a short circuit, sections of the current supply can be provided with an insulating layer. The transducers 711, 712 are designed such that the current guides 713, 714 are clipped in can.

FIG. 14 shows a fastening element 728 for the fastening unit shown in FIG. 13, which has a body 730 with a contact element designed as a conductive clip or hook 721 and a correspondingly symmetrically designed and arranged non-conductive clip or hook 720 includes as an auxiliary element. The contact element 721 is connected to a by means of a connecting conductor 722 Contact 723, which is passed through the body 730 and for connection to a conductive Hanging element 12A, 12A is connected. The body 730 with the contact element 721 and the Auxiliary element 720 is designed such that the contact element 721, for example, in the lower Current guide 714 and the auxiliary element 720 can be hooked into the upper current guide 713, contact element 721 then for electrical contact with lower current lead 714 worries. The contact configuration can be reversed by rotating the fastening element 728 by 180 ° become, d. H. contact element 721 then makes electrical contact with the upper one Current supply 713. It is understood that in FIG. 14 only one half of the fastening element 728 is shown, the half, not shown, being constructed symmetrically to the half shown.

So far, only fastening elements for fastening units with two current paths have been described. However, it is understood that the described principles also apply to fastening units with more than two Current paths are applicable, e.g. in the monitoring systems of FIGS. 2 and 3. In this Case, the fasteners can be designed so that they can choose one of three or four Can contact power lines (a single basic type) or three or four accordingly Different types of fasteners can be provided. It is also possible that a Fastener contacted two current paths at the same time and accordingly two connection poles having.

In a modification of the monitoring devices described in FIGS. 1, 2 and 4 or in addition thereto can theft protection for monitored objects be carried out in that at least one hanging element of a suspended object is a force sensor for detecting the Suspension force is integrated. Alternatively, the force sensor could also be integrated into the fastening element be, which connects the hanging element with the fastening unit. The sensor can be its measurement signal send to the alarm unit, which then determines that an alarm is present if a predetermined one Force is undershot, and gives a corresponding signal. The force sensor acts as a force meter and as a transponder and is preferably on the hanging element or the hanging elements with the corresponding current paths of the mounting rail or unit for power supply from the Power source or connected to the alarm device for communication. Basically, the However, the sensor itself emits an alarm signal.

As an alternative or in addition to the monitoring devices described above, a sensor can be attached the object to be monitored can be provided, which is the distance of the suspended object from detects the wall and provides a signal when the distance of the suspended object from the wall leaves a predetermined tolerance range.

Alternatively, the sensor can send its distance measurement signal to the alarm unit, which then determines whether there is an alarm. The power supply of the sensor and, if necessary, its communication takes place preferably in the manner described above, i. H. over conductive hanging elements. The sensor is as capacitive sensor or designed as an optical sensor, in the latter case it preferably a Beam of light sends to the wall and detects the reflected light.

The following can be seen from the further embodiments of hanging devices or monitoring devices shown in FIGS. 15 to 18:
The cable 1014A or 1014B is connected at its upper end to a fastening element 1022A or 1022B which is suspended in the fastening unit 1016 and has a contact element 1024 which is in electrical contact with one of the current paths 1018 or 1020. The cables 1014A and 1014B and the fastening elements 1022A and 1022B are designed to be electrically conductive, so that the cable 1014A is in electrical connection with the current path 1020, while the cable 1014B is in electrical connection with the current path 1018. The fastening unit 1016 comprises a first trough-shaped part 1026 which is open at the top and comprises a base 1028 and two side walls 1030 and 1032. The side wall 1032 of the trough-shaped first part 1026, which is further away from the building wall 1034, merges upwards into a side wall 1036 of a second trough-shaped part 1038, which is open at the bottom and comprises a base 1040 and a second side wall 1042 next to the side wall 1036, which is used to attach the fastening unit 1016 to the building wall 1034 and is essentially in contact with the building wall 1036. The current paths 1018 and 1020 are attached to the inside of the side wall 1036 and 1032, respectively. The second part 1038 essentially forms an upwardly closed U-shape, while the first trough-shaped part 1026 forms an upwardly open U-shape.

The fastening element 1022A or 1022B is essentially a U-shaped part which is open at the bottom formed with a base 1044 and two legs 1046 and 1048, the free end of the leg 1046 is connected to the rope 1014A or 1014B and the free end of the leg 1048 in the first trough-shaped part 1026 of the fastening unit 1016 is suspended and thereby essentially of the Base 1028 is supported. The leg 1048 also carries the contact element on its outside 1024.

The fastening element 1022A or 1022B is hooked into the fastening unit 1016 by: from below through the space between the side wall 1042 of the second trough-shaped part 1038 and the side wall 1030 of the trough-shaped first part 1026 is inserted until the leg 1048 can be lifted over the upper end of the side wall 1030, creating the fastener 1022A or 1022B can be hooked into the first trough-shaped part 1026.

15 and 16 is very inexpensive to manufacture, visually appealing and easy to use. The fasteners 1022A and 1022B can be trough-shaped in the first Part 1026 can be moved along the fastening unit 1016 as desired, without the electrical Contact with the current tracks 1018 or 1020 is interrupted. This allows flexible adjustment the suspension point of the corresponding image 1010.

As mentioned earlier, each image 1010 is electronic on its back Monitoring unit 1012 provided. The monitoring unit 1012 comprises a monitoring element 1050, which is designed as a transponder, and by means of connecting lines 1052 with two connections 1054 is connected, which in turn are in electrical contact with the rope 1014A or 1014B. The monitoring unit 1012 further comprises an elastic film 1056 with which the transponder 1050 and the connecting lines 1052 are permanently and non-detachably connected and which on their Back side an adhesive layer for sticking the monitoring unit 1012 on the back side of the picture 10 includes. The film 1056 is designed in terms of its material, its thickness and its elasticity that when attempted mechanical detachment in the glued state it tears from picture 1010. For To reinforce this effect, the film 1056 is provided with perforations 1058.

The transponder 1050 and the connecting lines 1052 are preferably on the film 1056 laminated or printed on or welded into the film 1056.

The monitoring system is designed so that the control unit via the current paths 1018 and 1020 the fastening unit 1016 and the suspension cables 1014A and 1014B with each one Transponder 1050 is in electrical connection. In the simplest case, it is Transponder 1050 around a resistor, with each frame 1010 having an individual resistance value is assigned and all resistors are arranged in parallel.

The control unit 1220 (or 20, 120) then senses the current through that through the parallel connection formed overall loop and generates a deviations from a predetermined target value Alarm signal. The transponder 1050 can, however, also be designed as a digital logic unit that does the corresponding image 1010 by means of a digital code value assigned only once, which by digital memory, dip switches, wire jumpers or the like is defined on the logic unit, identified. In this case, the monitoring is carried out in such a way that the control unit uses the current paths 1018 and 1020 and the suspension cables 1014A and 1014B, respectively, send signals to the transponder 1050 by can be acknowledged with the specially assigned code value. The absence of one Acknowledgment signal leads to the generation of a corresponding alarm signal at the control unit. Here the specially affected image can be identified.

The alarm signal is triggered as soon as the electrical connection between the control unit and the transponder 1050 is interrupted in any way. This can e.g. done by a Rope 1014A or 1014B, i.e. the corresponding fastening element 1022A or 1022B, from which Fastening unit 1016 is unhooked or attempted, the monitoring unit 1012 as a whole to solve from the picture 1010. When trying to pull the glued film 1056 from the back of the picture 1010 to release, the film 1056 tears, e.g. along the perforations 1058, whereby at least one of the Connection lines 1052 is interrupted or the transponder 1050 itself is damaged. By the resulting interruption of the electrical connection between the control unit and the A corresponding alarm signal is generated on transponder 1050 at the control unit.

In addition or as an alternative to the monitoring unit 1012 on the back of the images 1010, for a motion detector should be provided for each image, which should indicate suspicious movements sends the corresponding signal to the control unit. A comparable motion detector 1214 can also be used However, an advantage can also be integrated into a lighting unit 1210, as shown in FIG. 19.

The control unit is designed in such a way that, in the absence of a specific signal from one of the Transponder 1050 and / or when detecting an alarm signal from one of the motion detectors corresponding picture identified. The control unit forms part of a monitoring system, which further comprises a display device and a memory in which graphic representations of the individual images 1010 are stored. The control unit is designed so that after the determination of the image 1010 affected by the alarm situation is the graphical representation of the corresponding image 1010 from the memory (1224, Fig. 19) on the display device, so that a Surveillance person can immediately see which image is affected. In addition to the graphic Representation of the affected image, additional information can be displayed, such as the Room number and an identification number assigned to the picture. In addition, a general alarm by means of signal generator 1222 (FIG. 19) locally or at different locations simultaneously are given.

Furthermore, surveillance cameras (e.g. camera 1212 integrated into a lighting unit 1210) can be be provided for the images, with a surveillance camera each having one or more images can be assigned. The monitoring system can then be designed so that in the absence of a specific signal from the transponders 1050 and / or upon detection of an alarm signal from one of the Motion detector additionally image signals from the surveillance camera assigned to the image concerned be displayed on the display device. Furthermore, image signals of the affected Surveillance camera for a certain period of time, e.g. multiple days can be. The storage can proceed in such a way that image signals for one frame of each Surveillance camera can be saved at specified intervals, e.g. at a distance of one Second. The saved images can then be overwritten, for example, after about 10 days become. In a special embodiment of the invention, the surveillance cameras are in the Integrated lighting elements and can monitor the entire area in front of one Capture object. A serial data transmission format similar to that can be used for data transmission So - called USB standard can be used, so that several cameras are available on the Power or signal conductors can be operated.

Furthermore, acoustic sensors 1214 can be provided in the vicinity of the images, in the absence of these a specific signal from one of the transponders 1050 and / or when an alarm signal is detected by one of the motion detectors signals of the acoustic sensor associated with the image in question similar to the way the signals from the surveillance camera are recorded and temporarily can be saved.

A plurality of control units 1220 can be provided, which are connected in such a way that they can be used individually or in can be used simultaneously, the control units e.g. via modems 1226 and related Network connections 1228, 1230 can be interconnected to form a computer network. To this In this way, several monitoring workplaces are created that are connected to each other. The Computer network can be designed as an intranet, for example, or it can be connected to the Internet be formed. The monitoring system is preferably remotely controllable, the Remote control, for example using a 1226 modem and telephone system or using a direct digital Network connection can take place.

Furthermore, a control unit can also form several connected work stations by several Display devices, e.g. in the form of so-called terminals.

18, which shows the rear view of an image 1110 to be hung and monitored, is one another embodiment of an electronic monitoring unit 1112 shown on the Back of image 1110 is attached. The picture 1110 is suspended with two ropes 1114 and 1116, respectively also as an electrical communication link between the monitoring unit 1112 and one Serve (not shown) central control unit by, for example, designed to be electrically conductive are. A strain gauge 1120 is integrated into the cable 116, which replaces a cable section and the The load on the rope 1116 is captured by the image 110. The monitoring unit 1112 is via connections 1122, 1124 electrically connected to the strain gauge 1120 in order to correspond to the current load of the To detect cable 116 corresponding electrical signal. As soon as this load signal leaves the predetermined fluctuation range, the monitoring unit 1112 sends an alarm signal to the Control unit, since then theft or the like is to be expected.

In a further embodiment of the invention, multiple and independent of each other functioning monitoring units provided. Accordingly, a monitoring unit be wired into a monitoring system on the one hand, or wirelessly Connection. But it can also be ensured that in addition to a first monitoring system the second is provided for individual or all monitoring units, which is independent of the first works. For this purpose, it is proposed to expand the monitoring units so that they for example, have inductively working second transponders, which are independent and mobile control authority for occasional and essentially incognito Control gears can be queried so that the existence and functionality of the intended Monitoring units can be verified.

Claims (68)

Hanging device for hanging objects to be contacted electrically (10A, 10B), with an elongate fastening unit (300) which can be attached in a spatially fixed manner and which has at least two Current tracks (324, 326, 501, 511, 634, 636, 713, 714), and at least one in the Fastening unit attachable fastener (312, 528, 628, 728) for each to be hung Object, wherein the or each fastener in the suspended state along the Fastening unit is displaceable and with at least one contact element (330, 520, 620, 630, 721) is provided, which one regardless of the displacement of the attached fastener makes electrical contact with one of the current paths. Hanging device according to claim 1, characterized in that the or each Fastening element (312, 528, 628, 728) is designed so that it ensures selectability, too which of the current paths (324, 326, 501, 511, 634, 636, 713, 714) has the at least one contact element (330, 520, 620, 630, 721) makes an electrical contact. Hanging device according to claim 1, characterized in that at least two types of fastening elements (328) are provided, which are distinguished by the arrangement of their contact elements Distinguish (330) in such a way that in the suspended state the at least one contact element contacts another current path (324, 326). Hanging device for hanging objects to be contacted electrically (10A, 10B), with a fastening unit (300) which can be attached in a spatially fixed manner and which has at least two current paths (324, 326, 501, 511, 634, 636, 713, 714), and at least one that can be suspended in the fastening unit Fastening element (312, 528, 628, 728) for each object to be hung, which with at least a contact element (330, 520, 620, 630, 721) is provided which makes electrical contact with one of the Produces current paths, wherein the or each fastener is designed so that it is a Selectability ensures to which of the current paths the at least one contact element unites makes electrical contact. Hanging device according to claim 4, characterized in that the or each Fastening element (312, 528, 628, 728) in the suspended state along the fastening unit (300) is displaceable and the contact is independent of the displacement of the hooked Fastener is. Hanging device according to claim 2, 4 or 5, characterized in that the selectability this ensures that the contact depends on the orientation in which the or each Fastening element (528, 728) is suspended in the fastening unit. Hanging device according to claim 6, characterized in that the or each Fastening element (528, 728) essentially mirror-symmetrical with respect to a central plane is trained. Hanging device according to claim 7, characterized in that the fastening unit is essentially mirror-symmetrical with respect to a central plane. Hanging device according to claim 8, characterized in that the fastening element (528, 728) can be hooked into the fastening unit in a first orientation and in a second orientation is, which lead to a first or second contact configuration, wherein the fastener in the second orientation is rotated by 180 ° with respect to the first orientation. Hanging device according to claim 9, characterized in that the fastening unit comprises two current paths (501, 511, 713, 714) and the or each fastening element (528, 728) Contact element (520, 721) comprises the one current path in the first contact configuration and in the second contact configuration contacts the other current path. Hanging device according to claim 6 to 10, characterized in that the or each Contact element (520, 721) is fixedly attached to the or each fastening element (528, 728). Hanging device according to claim 2, 4 or 5, characterized in that the selectability this ensures that only one type of contact element (328) is provided and that or each Contact element before hanging the or each fastening element (312) on different Locations of the fastener can be used to the current path to be contacted (324, 326) to determine. Hanging device according to claim 2, 4 or 5, characterized in that the selectability this ensures that at least two types of contact elements (620, 630) are provided and the or each contact element before attaching the or each fastener (628) to one predetermined location of the fastener can be used, the choice of Contact element type determines the current path to be contacted (634, 636). Hanging device according to one of the preceding claims, characterized in that that the fastening unit (300) is formed like a rail. Hanging device according to claim 14, characterized in that the fastening unit a profile part (302, 402, 500, 600) partially enclosing an interior (318), the Current tracks as busbars (324, 326, 501, 511, 634, 636) are formed. Hanging device according to claim 15, characterized in that the profile part (402, 500, 600) is electrically insulating. Hanging device according to claim 15 or 16, characterized in that the or each Contact element is designed as a grinding spring (330, 520, 620, 630), which due to its bias attached fastener on the corresponding busbar (324, 326, 501, 511, 634, 636) presses. Hanging device according to claim 14 to 17, characterized in that the profile part (302, 402, 500) channel-shaped with three essentially closed sides (304, 503) and one with one through the elongated opening (310, 510) side (308), the or each fastening element (312, 528) can be suspended in the profile part by means of the opening. Hanging device according to claim 18, characterized in that the or each Fastening element (528) in the suspended state in the boundary edges of the opening (510) in Is guided in the longitudinal direction. Hanging device according to claim 19, characterized in that the boundary edges the opening (510) are each provided with a slot (513, 514) in the longitudinal direction, in which in in the suspended state, the lateral edge (526, 527) of the or each fastening element (528) is led. Hanging device according to claim 14 to 17, characterized in that the profile part (600) is channel-shaped with three sides, with its rear side (602) on a wall (306) is attachable, the front is substantially open and the top (604) with a first slot (606) and the underside (608) is provided with a second slot (610), the or each fastening element (628) can be suspended with its upper end in the first slot and with its lower end can be snapped into the second slot. Hanging device according to Claims 18 to 21, characterized in that panel parts (529) are provided which can be inserted into the opening (510) or the open side of the profile part (500, 600). Hanging device according to claim 22, characterized in that the panel parts (529) with contact elements for contacting the current paths (501, 511, 634, 636) and with conductive electronic devices connected to these contact elements are provided. Hanging device according to claim 1 to 13, characterized in that the or each Contact element (721) serves the or each fastening element (728) in the fastening unit to mount. Hanging device according to claim 24, characterized in that the fastening unit several holding elements (710) to be fixed in a row and at least two parallel tubular or rod-shaped current guides (713, 714), the current guides from the Holding elements are held. Hanging device according to claim 25, characterized in that the or each Contact element (721) is designed so that it can be suspended in one of the current guides (713, 714). Hanging device according to claim 26, characterized in that symmetrical to the or each contact element (721) is arranged an appropriately designed insulated auxiliary element (720) which can be suspended in one of the current guides (713, 714). Hanging device according to one of the preceding claims, characterized in that that it is in the objects to be hung (10A, 10B) to art objects that with electrical safety and / or lighting devices (150A, 150B, 250A, 250B, 2524 252B) are provided. Hanging device according to claim 28, characterized in that the or each Fastening element (312, 528, 628) an eyelet (320, 522) which can be screwed in or out or a hook (622) for hanging a hanging element (12A, 12B) connected to the object to be hung which is conductively connected to the or each contact element (330, 520, 620, 630). Hanging device according to claim 29, characterized in that the fastening element (528, 628) is otherwise electrically insulating. Hanging device for hanging objects to be contacted electrically (1010), with an elongate fastening unit (1016) which can be attached in a spatially fixed manner and which has at least two Has current paths (1018, 1020), and at least one that can be hooked into the fastening unit Fastener (1022A, 1022B) for each item to be hung, the or each Fastening element can be moved along the fastening unit in the suspended state and with at least one contact element (1024) is provided, which is independent of the displacement of the hooked fastener makes an electrical contact to one of the current paths, wherein the fastening unit (1016) has a first upwardly open trough-shaped rail-like part (1026) comprising a base (1028) and two side walls (1030, 1032) and that or each Fastening element (1022A, 1022B) a downwardly open U-shaped part with a base (1044) and comprises two legs (1046, 1048), the free end of the first leg (1048) with the object to be hung (1010) is connected and the free end of the second leg (1046) in the first trough-shaped part (1026) of the fastening unit is suspended. Hanging device according to claim 31, characterized in that one (1032) of the two Side walls (1030, 1032) of the first trough-shaped part (1026) of the fastening unit (1016) into a first (1036) passes from two side walls (1036, 1042) of a second part (1038) of the fastening unit, which comprises a base (1040) lying above and connected to the first side wall, and the second side wall (1042) of the second part for attachment to a building wall (1034) and essentially abuts against this, the first trough-shaped part against the wall of the building facing side of the first side wall of the second part is arranged. Hanging device according to claim 32, characterized in that the second side wall (1042) of the second part (1038) lies below the base (1040) of the second part, so that the second part forms a closed U-shape. Hanging device according to claim 33, characterized in that the current paths (1018, 1020) are provided on the inside of the first side wall (1036) of the second part (1038). Hanging device according to claim 31 to 34, characterized in that the first Leg (1048) of the fastener (1022A, 1022B) on the base (1028) of the first trough-shaped Part (1026) supports. Hanging device according to claim 31, characterized in that one of the two Side walls of the first trough-shaped part of the fastening unit for attachment to a Building wall serves and is essentially against this. Hanging device according to one of the preceding claims, characterized in that that the or each hanging element is designed as a rope or a chain. Monitoring unit for objects (1010), with at least two connections (1054) for electrical supply lines (1014A, 1014B) and one by means of connecting lines (1052) with the Connections of electrically connected electronic monitoring element (1050), thereby characterized in that an elastic film (1056) is provided with which the monitoring element (1050) and the connecting lines (1052) firmly and permanently connected and which with a Adhesive layer for sticking the monitoring unit onto the object to be monitored (1010) is provided, wherein the film is designed so that when attempted mechanical detachment in bonded state tears from the object to be monitored. Monitoring unit according to claim 38, characterized in that the film (1056) with Perforations (1058) is provided. Monitoring unit according to claim 38 or 39, characterized in that the Monitoring element (1050) is an electrical circuit that together with the Connection lines (1052) is laminated onto the film (1056). Monitoring unit according to claim 38 to 40, characterized in that it is in the Connection lines (1052) and for the monitoring element (1050) around printed conductor tracks acts. Monitoring unit according to claim 41, characterized in that it is the Monitoring element (1050) is a resistor. Monitoring unit according to claim 41, characterized in that it is the Monitoring element (1050) is a logic unit. Monitoring unit according to claim 38 to 43, characterized in that it is the object to be monitored (1010) is an image or painting and the Monitoring unit (1012) is glued to the back of the picture or painting. Monitoring system for objects (1010), with at least one control unit which at least one display device and a memory in which graphic representations of the Items are stored, included and in communication with monitoring elements (1012), each associated with an item and each for delivering a specific one Signals to the control unit are formed, and / or motion detectors, each one Object are assigned, wherein the control unit is designed so that in the absence of a specific signal and / or when detecting an alarm signal from one of the motion detectors associated object is identified and a graphical representation of the object from the Memory is displayed by the display device. Monitoring system according to claim 45, characterized in that in the absence of a specific signal and / or when an alarm signal is detected by one of the motion detectors additional information regarding the affected item (1010) is displayed. Monitoring system according to claim 46, characterized in that it is in the additional information about a room number and one assigned to each object (1010) Identification number is. Monitoring system according to claim 45 to 17, characterized in that it is in the Objects (1010) are exhibited works of art. Monitoring system according to claims 45 to 48, characterized in that at least a surveillance camera for the objects (1010) is provided. Monitoring system according to claim 49, characterized in that in the absence of a specific signal and / or when an alarm signal is detected by one of the motion detectors Image signals of the surveillance camera assigned to the object concerned (1010) additionally be displayed on the display device. Monitoring system according to claim 49 or 50, characterized in that at Absence of a specific signal and / or when an alarm signal is detected by one of the Motion detector image signals associated with the object (1010) concerned Security camera can be saved for a certain period of time. Monitoring system according to claim 51, characterized in that the period is several days. Surveillance system according to claim 51 or 52, characterized in that image signals can be saved for a single image at predetermined intervals. Monitoring system according to claims 45 to 53, characterized in that at least one acoustic sensor is provided in the vicinity of the objects (1010), with the absence of a specific signal and / or when detecting an alarm signal from one of the motion detector signals of the sensor assigned to the object concerned are recorded. Monitoring system according to claims 45 to 54, characterized in that several Control units are provided which are connected so that they can be used individually or simultaneously. Monitoring system according to claim 55, characterized in that the control units are interconnected to form a computer network. Monitoring system according to claim 56, characterized in that the computer network is designed as an intranet. Monitoring system according to claim 56, characterized in that the computer network is formed over internet connections. Monitoring system according to claim 45 to 58, characterized in that the Monitoring system is remotely controllable. Monitoring system according to claim 59, characterized in that the remote control using a modem and telephone system or using a direct digital network connection. Monitoring system for objects suspended by means of hanging elements (1114, 1116) (1110), a force sensor (1120) for at least one hanging element (1116) of each object Detection of the hanging force is integrated, one each on the back of the suspended Item attached electronic monitoring unit (1112) with the respective force sensor is electrically connected to detect a signal for the load on the hanging element, the Monitoring unit in electrical communication connection with a central control unit of the Monitoring system stands, and wherein each monitoring unit is designed so that when the detected load signal leaves a predetermined fluctuation range, an alarm signal to the Control unit delivers. Monitoring system according to claim 61, characterized in that the hanging elements (1114, 1116) are designed as ropes and that the force sensor (120) is one Strain gauge that replaces a rope section. Monitoring system according to claim 62, characterized in that it is in the Objects (1110) are pictures which are each suspended by means of two ropes (1114, 1116), wherein the force sensor (1120) is integrated in one of the ropes (1116). Monitoring device for objects suspended on a wall, with a sensor for detecting the distance of the suspended object from the wall, which provides a signal when the Distance of the suspended object from the wall leaves a predetermined tolerance range, characterized in that the sensor is a capacitive sensor or an optical sensor. Monitoring device according to claim 64, characterized in that the sensor is an optical sensor that sends a beam of light to the wall and detects the reflected light. Monitoring device for by means of hanging elements and related Fastening elements suspended from a fastening unit, in at least one Hanging element or a fastening element of each object a force sensor for detecting the Suspension force is integrated, and the monitoring device when falling below one gives a predetermined signal an alarm signal. Monitoring device for hanging elements and related Fastening elements suspended from a fastening unit, with one having a first, permanently installed monitoring system communicating with a monitoring device second monitoring device, in particular a transponder, which is suitable for information exchange with a second, mobile monitoring system. Hanging device for at least one suspended from a hanging element Object, with a fixed mounting unit for holding the or everyone Hanging element, one on the or each hanging element or the or each suspended object attached electrical device, and a power source and / or a control unit, thereby characterized in that the or each hanging element is designed so that it for an electrical Connection between the respective electrical and the control unit and / or the power source ensures and that the hanging device as a monitoring device for the or each suspended Object is formed, wherein the or each electrical unit is an electronic Is monitoring element, which is in each case firmly connected to the object to be monitored, and the control unit in cooperation with the monitoring element (s) detects whether a There is a deviation from a predetermined normal state of the overall system.

Images