EP2772890A1 - Alarm device - Google Patents

Abstract

The alarm device has a mobile alarm transmitter (1) which is connected to a sensor element (4a-4c) for providing an alarm signal, when change in electrical property is detected. The alarm transmitter and sensor elements are electrically connected and contacted and are designed as separate units and as a consumption unit. The sense element is designed as separate units for performing securing and releasing process of a protected article. The connection supply to alarm transmitter from sensor element is removed.

Description

The invention relates to an alarm device comprising a mobile alarm, wherein the alarm is set up to detect a change in an electrical property of a sensor element connected to the alarm and to signal an alarm when a change is detected.

Alarm devices of this type are known in the art and are used primarily for securing objects against unauthorized stealing. For example, it is known to provide bicycle locks in the manner of such an alarm device, in which case the alarm device is carried by a user, so basically can be considered mobile and usually has a steel cable, the bicycle and optionally an object in the area can be attached. Such a steel cable is firmly connected at one end to the alarm, whereas the other end is open, so for example by bicycle spokes or through the frame can be performed to then connect this end to the alarm, which thus also has a closing function ,

The primary function is to prevent the stealing of the secured object, such as here a bicycle, the prior art, however, also knows such versions in which the severing of the steel cable is detected and thereafter an alarm, in particular an audible alarm is triggered , To enable such a detection, it is known to form an electrical circuit through the steel cable mentioned above, the opening is detected by severing the steel cable by the alarm.

It is problematic here to assess that such alarm devices are destroyed by severing the steel cable designed as a sensor element, that is, they can not be reused in the future.

In addition, such alarm devices with sensor elements, which also make it difficult to steal or impossible, the disadvantage of a very heavy weight, so that such alarm devices are basically mobile, but can not be comfortably carried by a user.

In addition, it is a further disadvantage of such alarm devices that they are tailored to a specific application, such as here the aggravation of a bicycle theft and the acoustic display of the same, so that such known alarm devices are not universally applicable as a rule.

It is therefore an object of the invention to provide an alarm device of the aforementioned generic type, which is easy, can be carried easily by people who can be used universally for securing a wide variety of objects and in particular which are also repeatedly, at least partially, reused can, if a destruction of the sensor element has taken place.

This object is achieved with a generic aforementioned alarm device, which is so far designed according to the invention that the alarm and at least one sensor element each form separate units and electrically connected to each other are electrically connected, in particular also mechanically fastened together, the alarm as a reusable Unit is formed and the at least one sensor element is designed as a consumption unit.

A first essential core idea of the invention is already to design the alarm transmitter and the at least one sensor element as separate units, so that any destruction of the sensor element, for example by an unauthorized person or possibly also by the authorized user, does not destroy the entire system Alarm device leads, but at least the alarm continues to be used and only for the next following use a new sensor element must be used.

It is provided as in the prior art that alarm and the at least one sensor element are electrically connected to each other in contact to detect by a change in an electrical property of the sensor element, the alarm case and to signal accordingly.

It can be provided that in a proper state between the alarm and the at least one sensor element after an electrically contacting connection of these two units, at least one electrical conduction path, in particular at least one circuit is closed, the opening, for example by severing the sensor element , detected by the alarm and signaled.

It is also possible to design sensor elements and alarm device such that instead of opening at least one closed circuit or at least one closed conductor loop, the reverse case, that is at least an open circuit is considered normal and closing at least one circuit by a measure on Sensor element, such as a movement, a touch or an expansion, etc. represents an alarm case and is detected and signaled by the alarm.

In yet another embodiment, it can also be provided, as an electrical property whose change is checked, not merely to check the presence of an open or closed circuit, but instead to check the resistance of a circuit, for example, by manipulative measures on Sensor element to be changed can, for example, again by cutting, whereby it becomes high-impedance, by a closing, whereby the resistance is low, or by a change in resistance, in particular between these extremes, whereby an original, in particular when establishing the connection between the alarm and sensor element detected Resistance value changes.

Again, a change, for example, by stretching, upsetting, bending, touching, but also by a dampening or drying out of the sensor element take place, so that such changes in state can be detected indirectly via such a resistance. It is also possible to detect changes in humidity in the case of a sensor element by means of a different electrical measurement variable than the resistor.

It is therefore essential that the alarm transmitter monitors at least one sensor element connected to it an electrical measured variable with respect to a change which is caused by a manipulation of the sensor element.

The formation of a sensor element as a consumption unit according to the invention is at least understood that such a sensor element after a particular first time use, that is, connection with an alarm and / or an object to be protected / monitored, not as often, that is continuously, can be reused but at most allows a multiple use limited in number, whereas a preferred embodiment of the alarm device according to the invention can provide that the at least one sensor element is designed as a disposable unit, in particular, is consumed by the process of securing and unlocking an object to be protected or is consumed by an occurred alarm case.

The securing of an object comprises at least the attachment of the sensor element to an object, preferably at the same time also the connection (electrical and mechanical) with the alarm.

Thus, such a sensor element can be used once to connect it with the object and preferably with the alarm, whereby an electrical contact between the sensor element and alarm is closed and by the alarm a change in an electrical property, as described above, is detectable.

If, however, in a release of the object to be protected, a sensor element removed or severed from the object to be protected or the connection between the sensor element and alarm, it may preferably be provided according to the invention that the same previously used sensor element is not connected to the alarm again and thus not can be used again, at least not under restoration of function.

However, it may also provide an embodiment that a reuse of a sensor element is possible, provided it remains attached to the object to be protected / monitored and only the connection between the sensor element and alarm was solved. Only when it is detached from the object, it is then consumed, especially because it can only be solved under mechanical or electrical destruction, e.g. by tearing or cutting.

It may also be provided, for example, that a connection once established between the alarm transmitter and the sensor element does not start without the consumption of the sensor element generating event, such as the (electrical and / or mechanical) destruction of the sensor element again from the alarm or a to be protected or to be monitored object can be separated.

Although the formation of a sensor element may be provided as a disposable unit, but not mandatory for the inventive execution of an alarm device, provides a preferred embodiment of the invention, regardless of the specific embodiment of the consumption unit that the alarm device comprises a supply of sensor elements, from or from the at least one individual sensor element for connection to the alarm can be removed.

This also takes into account the fact that due to the existing stock a user can always use new sensor elements to bring the alarm again to secure any object used.

In addition, it can also be provided to provide various types of sensor elements as a stock, for example in the manner of an assortment, in order to allow different measures of attachment of a sensor element to an object to be protected or monitored.

For example, sensor elements can be provided which can be bonded particularly well with flat objects, for example adhesively bonded to the surface thereof, or even those sensor elements which can be wrapped around objects particularly well, such as band-shaped sensor elements.

One possibility for the formation of a stock can provide that such a supply comprises a plurality of at least identical, in particular even identical individual sensor elements and accordingly can be taken from this stock for use with the alarm transmitter at least one of these sensor elements and used by connection with the alarm device.

By similar is preferably understood in this case that the individual sensor elements have the same mode of action with respect to attachment to an object and change an electrical property, as is the case for band-shaped elements, however, for example, can be in stock with different length, for example, and insofar not identical due to the different lengths, but at least similar.

Another embodiment can provide that a supply is formed by a coil of sensor element material, in particular of "endless" sensor element material, so that the possibility is opened up to cut off a portion of the sensor element material from such a coil cut to length piece of material represents a sensor element for use in conjunction with the alarm. This also has the advantage that needs different lengths of sensor elements can be obtained from such a coil.

Such a coil may in the simple case be a kind of cable drum from which a cable with at least one electrically conductive line is cut off in a desired length in order to connect this cable or its at least one line to the alarm transmitter.

It can also be provided here that such a coil is formed by a sensor element material, which is adhesive on at least one side, so that self-adhesive sensor elements are provided thereby, which can attach a user in a simple manner adhesive to be protected objects, in particular on objects which are not allowed to move relative to other objects, as is the case, for example, with doors to be closed, so that such possibly occurring movement can be detected by a tearing of the sensor element adhesively attached to the object to be secured. Again, such a self-adhesive sensor element may comprise at least one electrically conductive line.

As already mentioned, a sensor element, for example, and for the invention may preferably be band-shaped, wherein it may be provided that such a sensor element is formed either directly itself by an electrical line, in particular by a cable, or that in a preferred embodiment such a sensor element has at least one electrical line which can be electrically contacted by the alarm transmitter. In the case of a band-shaped sensor element, this at least one electrical line preferably extends along the longitudinal extension direction of the band-shaped sensor element.

Here, various embodiments are conceivable, such as that the at least one electrical line is surrounded by the material of the sensor element and a contacting of at least one electrical line at least at one end of the sensor element is made possible by the alarm, for example, characterized in that the ends of at least an electrical line of a sensor element at least one band end of the sensor element, optionally at both band ends, are guided to the surface and thus freely accessible there or the ends of the material of the sensor element which surrounds the at least one line are free, thus thus at least one Line there is open.

It may alternatively be provided here that the at least one electrical line within a band-shaped sensor element according to the invention over the entire length of the sensor element and thus also at the ends, is embedded in the material of the sensor element, thus completely isolated within the sensor element and an electrical contacting connection between the sensor element and the alarm is effected in that the material of the sensor element at the location of the connection is at least partially penetrated by contacts of the alarm to achieve an electrical connection through the material to the at least one electrical line disposed therein.

Another embodiment may also provide that at least one electrical line, in particular one which extends in the longitudinal direction of extension of the band-shaped sensor element, is arranged on the surface of the sensor element.

In particular, an embodiment in which a sensor element is realized by an adhesive tape, or has an at least one side adhesive surface, but also in other inventive Sensor elements can provide that at least two electrical lines are arranged in the longitudinal direction of the sensor element on the surface, so that by folding this sensor element on itself, can cause the lying in the surface electrical lines cross each other and thus an electrical contact is closed between the lines.

It can thus be provided that, for example, a sensor element designed as an adhesive tape has two parallel electrical lines lying on the surface of the adhesive tape, for example on the adhesive surface of the adhesive tape, so that at one end of such a tape-shaped sensor element the connection thereof to the alarm transmitter takes place can, for which this contacted each of the two lines and wherein further at the other end of the tape by folding over the same on itself, the aforementioned crossing of the electrical lines is achieved, so that a total of a closed circuit between the alarm and the two electrical lines of the adhesive tape results.

A tearing of the adhesive tape, which is attached, for example, on an object to be secured, such as on a door leaf and a door frame, thus resulting in a tearing of the tape and a separation of at least one of the electrical lines, which is detected and signaled by the alarm accordingly can be.

Of course, it is possible to provide within such a band-shaped sensor element also a plurality, that is in particular more than two electrical lines that can be electrically connected to at least two corresponding contact elements on the alarm, preferably with a corresponding number of corresponding contacts on the alarm to eventual To be able to determine changes in an electrical property via the alarm transmitter.

In addition to the electrical contact between at least one sensor element and the alarm, there is always a mechanical attachment to each other in the connection between them.

For the connection between the alarm transmitter and the sensor element, it is generally provided that an alarm transmitter has at least one receiving area in which a sensor element can be connected to the alarm transmitter in an electrically contacting manner. This may be a plug contact, a surface contact, but also a piercing contact, in which the sensor element material surrounding an electrical conductor is pierced by a contact element. Especially by such a piercing contact a mechanical attachment is made at the same time.

A preferred further development can also provide that an alarm transmitter has at least two receiving areas, which are set up to connect different sensor elements. Thus, for example, sensor elements which are designed as adhesive tape can be connected to the alarm transmitter in a special reception area provided for this purpose, whereas other types of sensor elements, for example band-shaped sensor elements which are laid in one loop, are connected to the alarm transmitter in another reception area can be.

Of course, there is also the possibility that an alarm, in particular at least two identical receiving areas for a sensor element to be used, which is inserted with a respective end in each one of these receiving areas to achieve an electrically contacting connection between the sensor element and alarm.

For example, it may be provided that a receiving area is formed as an opening, for example a slot-shaped opening into which at least one end of a sensor element can be inserted to produce an electrically contacting connection, in particular also to produce a mechanical connection.

In this embodiment, for example, a sliding contact may be provided in the opening, which when inserting one end of a sensor element with a surface contact area of the sensor element in connection and thus establishes an electrical connection to the sensor element. It can also be provided here to arrange two opposing electrical contacts in such an opening, between which an open, if necessary. Even both open ends of a band-shaped sensor element are introduced, in particular of such a sensor element which has at least one electrical line, so that here a total closed circuit between alarm and sensor element can be produced.

It may be provided that in the band-shaped sensor element, an electrical line, apart from the respective end regions, in the interior, that is isolated, is guided and in the end regions, the electrical line is guided to the surface of the sensor element, in particular at the two opposite ends , Also on opposite surface sides of the sensor element, so that, for example, a contact element at one end of the sensor element on the top and another end on the bottom, resulting in a looping of the sensor element and plugging into the opening of the alarm contact with the two each other facilitates oppositely arranged sliding contacts, in particular when the two ends are superimposed and the contact elements are then arranged on opposite sides.

It can also be provided that at least one end of a sensor element is inserted into an opening of a receiving area of the alarm and moves through an internal mechanism of the alarm, in particular after mechanical actuation of a corresponding actuator of the alarm, a piercing contact and by the sensor element material is punched through to contact a sensor element or the electrical line lying therein.

It can also be provided that a receiving area is realized as an insertion area formed between two mutually pivotable, for example, foldable about an axis housing parts of the alarm, in which at least one end of a sensor element after an opening pivoting of the housing parts can be inserted and electrically contacted by a closing pivoting is, in particular also mechanically fastened.

By way of example, such a configuration can be provided with an insert area if a sensor element designed as an adhesive strip, in particular a one-sided adhesive strip, is used. Here, it can be provided that at least one, preferably two contact elements are provided in the insertion region, in order thereby to produce at least one electrical connection to the at least one, preferably two electrical lines within or on the surface of the sensor element.

With regard to the alarm device according to the invention, it should further be pointed out that the sensor elements used in a possible embodiment variant do not themselves constitute active protection of an object to be secured, in particular complicating possible theft of the object to be secured or moving the object to be secured, but exclusively for that purpose are provided to detect such an unwanted event as reliable and immediate as possible.

Accordingly, it can be provided that sensor elements of the type according to the invention are particularly easily destructible, that is, a change in the electrical characteristic of such a sensor element is caused especially easily by the slightest mechanical stress, such as tearing at least one electrical line arranged therein or thereon. This is the case in particular in the case of the embodiment in which a sensor element as at least one-sided adhesive tape is formed with at least one electrical conductor therein or thereon.

A preferred embodiment of the alarm device according to the invention can provide that such an alarm device comprises a communication module, by means of which, at least in an alarm triggering an alarm signaling message to a communication device, in particular a mobile phone is sendable.

Here it can be provided, for example, that in the alarm device according to the invention, a user can store his mobile phone number to specify so that in case of alarm, the user receives a message, for example, an SMS or e-mail or other notification to his mobile phone and Thus, attention is drawn to the alarm case, even if he is not in hearing range or visibility to the alarm and therefore can not perceive a possible acoustic or visual signaling of the alarm condition.

It can also be provided to transmit messages other than the pure alarm triggering to a communication device, for example status messages about the proper state of the alarm device.

The invention can provide here that an alarm device, in particular the alarm transmitter can receive a SIM card of any mobile operator so as to provide the radio functionality with the communication module, wherein the user can determine over which telecommunications provider the messages are sent.

On the other hand, it can also be provided that the communication module of the alarm device already has a permanently installed SIM card functionality, thus already tied manufacturer-specific to a particular provider and a user when purchasing such an alarm device according to the invention at the same time the use of the alarm device via the telecommunications network of the corresponding provider acquires.

It may also be provided that the alarm is set up only over a limited period of time or over a limited number of communications to allow the transmission or reception of messages via the communication module, so that after the expiration of the time or the implementation of the limited number of communications, the alarm device is automatically disabled and either must be renewed or an extension of the useful life or an increase in the number of available communications must be performed, for example, by buying the service life or the number of communication.

An embodiment of the invention can also provide that an alarm transmitter can be defused by a message communicated to the alarm transmitter and received by the communication module. Thus, for example, it is possible to allow the use of an object secured by an alarm device according to the invention also remotely by sending a corresponding message to the alarm device for third persons, although the owner of the alarm device is not on site.

Likewise, the authorized owner of such an alarm device can make a disarming of the alarm device when he carries his mobile phone and sends a message to the communication module of the alarm device.

Here, an application executable on a mobile telephone, in particular a smartphone, can also be provided in order to exchange communication messages with the alarm device, in particular for the purpose of sharpening, defusing or other messages, e.g. Status message about service life etc.

The alarm transmitter can furthermore, in particular on its upper side, preferably have the upper side of a pivotable housing part, at least one actuating element, in particular at least one key, by means of which the alarm device can be sharpened and / or defused. Therefore, a provide further embodiment also that the alarm device according to the invention can also be defused at the alarm itself, for example by entering a PIN number, pressing a particular key sequence or by an operable with a key lock or other measures known in the art per se.

Sharpening here preferably means that the alarm generator begins to check the electrical characteristic of the sensor element for a change out and then to signal in a change. In this case, it may be provided that the alarm transmitter first detects an initial state of the electrical property and stores it as a nominal state for the normal case, in order to be able to detect changes on this basis. Defusing or unlocking means preferably to terminate the aforementioned monitoring, thus triggering or signaling an alarm case in a subsequent change following.

Also, with at least one such key or by the pivoting of two housing parts of the alarm to each other, the mechanical attachment between the sensor element and alarm or the release of the connection can be effected. Especially with a proposed pivoting of two housing parts for the purpose of electrical and / or mechanical connection of alarm and sensor element, it may be provided that automatically takes place when pivoting, which leads to the closed state of the alarm, a sharpening of the alarm, without it requires another activity.

A refinement can also provide that the alarm transmitter, in particular on its upper side, preferably the upper side of a pivotable housing part, at least one illumination device, in particular by means of an alarm is optically signaled and / or an optical acknowledgment message to the user can be issued to the acknowledgment of a performed Action, in particular a sharpening or defusing and / or a continuous or intermittent lighting is effected. The latter can eg as lighting a person on the road, if they carry the alarm device with them.

An embodiment may also provide that the alarm transmitter comprises a device for locating, e.g. a GPS receiver, in particular wherein the determined location coordinates via an existing communication module to a receiving communication device, e.g. a mobile phone or even a computer can be sent. Thus, in case of theft of the alarm, this can be located and recovered. It can also be provided that the alarm generator signals an alarm by the above-described possibilities, if it determines that it has been moved, in particular so change its coordinates stored during the sharpening.

A possible further development may also provide for designing the alarm transmitter in a watertight manner so as to enable outdoor use, that is to say under environmental influence and in particular under different weather conditions. In particular, the receiving areas, or their openings for the introduction of sensor elements may include corresponding sealing means here.

Embodiments of the invention are described below:

The FIG. 1 shows an overview of an alarm device according to the invention, which in the present case comprises an alarm device 1, which is for example designed as a mobile unit, with a circular in cross-section here shown housing, but the invention is not limited to the shown housing shape. By inserting a SIM card 2, the alarm transmitter 1 has the functionality that a possible alarm case detected by the alarm transmitter 1 via the GSM mobile network 3 to a communication device, not shown here, for example, a mobile phone of the authorized user, communicates becomes.

According to the alarm device is not formed solely by the mobile alarm 1, but also has at least a supply of sensor elements designed as a consumer unit, wherein the FIG. 1 shows that there are three different types of sensor elements 4a, 4b and 4c in this embodiment. The sensor elements 4a, 4b are in this case designed as a coil supply and thus form a substantially endless supply of sensor elements, provided that one disregards the limitation by the amount of coil.

Here, a sensor element 4a, for example by an adhesive tape with at least one electrical conductor, here symbolically six electrical conductors 5 is formed. A piece of tape may be torn or cut from the bobbin supply to connect the sensor element thus formed to the alarm, thereby closing at least one electrical circuit between the alarm and the sensor element, wherein the adhesive tape designed as a sensor element can be adhesively attached to any object.

A sensor element can be formed here, for example, by cable strand 4b, which can also be deducted from a coil supply in the desired length. In the embodiment shown here, two electrical conductors 5 are provided in the cable sheath, which can be connected to the alarm 1 to close at least one electrical circuit, at least after the conductor 5 connected to each other outside the alarm transmitter 1 at the other end of such a sensor element 4b or just as this end is connected to the alarm 1.

A sensor element according to the embodiment 4c, for example, have the mechanical design of a cable tie, in which it is provided to pass through an eye designed as an end of this sensor element the other end, thereby forming a closed loop, which are only reduced in size due to the Einwegrastfunktion the eyelet can.

Here it can be provided that in at least one not shown here line element is arranged in such a sensor element, which is contacted after insertion of the open end (without the eyelet) in the alarm 1, for example, by contacts in the alarm 1, the corresponding contacts touching the surface of the sensor element end, provided that the at least one line element is guided within the sensor element 4c at the open end on the surface thereof. Also, with at least one piercing contact in the alarm, the material of the sensor element can be pierced to contact at least one embedded therein line.

For all different versions 4a, 4b, 4c or here not shown further possible embodiments of sensor elements, it is essential that these sensor elements are designed as consumer units, thus after their use, in particular after a release of the object to be protected, discarded, and a new sensor element is used, for example by removal from a supply.

The FIG. 2 illustrates a use of a sensor element, which is designed as a one-sided adhesive tape 4a and which in the present case has two conductors 5, which are arranged in the longitudinal direction and parallel to each other in the adhesive tape or in a preferred embodiment on a surface of the adhesive tape, in particular on the adhesive surface.

The left side shows the FIG. 2 , a piece of tape 4a cut from a supply before it is inserted in and connected to the alarm device 1. The embodiment according to the invention provides here that the alarm transmitter has two housing parts, namely an upper housing part 1a and a lower housing part 1b, which are pivotable relative to one another, for example about a hinge axis, whereby a receiving area 6 is released, which in the present case has two contacts. which are arranged at the same distance, which is also present between the electrical conductors 5 of the adhesive tape.

The adhesive tape is here inserted with the adhesive side down and thus with the arranged in the adhesive side conductors in the receiving area 6, hereafter the two housing areas pivoted against each other, thus thus the receiving area 6 is closed, so that the electrical connection between alarm 1 and Sensor element 4a is done.

The middle part of the FIG. 2 shows that the previously open end of the tape can be folded by 45 degrees and thus on itself, so as to achieve a crossing of the two parallel conductors in the folding area and so to realize a closed circuit between the two parallel conductors 5 and the alarm 1 ,

The right-sided part of FIG. 2 visualized a possible application, namely here, for example, the securing of a door or window, which is done by the adhesive tape designed as a sensor element 4a is glued with its adhesive surface on door leaf and door frame or window sash and window frame, so that opening the door or the Window is only possible if in this case torn the sensor element 4a, thereby opening the closed electrical circuit between the conductors 5 and thereby the alarm case is detected by means of the alarm transmitter 1. This can then signal this alarm case, for example, acoustically and / or optically and / or by placing a message by means of a communication module to a telecommunications device not shown here.

The FIG. 3 shows the application of an alarm transmitter 1 in conjunction with a sensor element 4c of FIG. 1 , here in the form of a cable tie. The left part of the FIG. 3 illustrates that the alarm device 1 may have an opening 1 c, through which a sensor element 4c can be inserted into the alarm 1, wherein in the opening electrical contacts are provided to provide an electrical connection to at least one arranged in the sensor element 4c electrical line to reach. As already mentioned above, these may be surface contacts or even piercing contacts.

The open end of the sensor element 4c introduced through the opening 1c can be guided in a loop in order to form a closed loop through the eye of the sensor element 4c, which can not be opened again due to the functionality known from a cable tie. since it is a one-way latching connection between the open end and the eyelet of the sensor element 4c, which allows only a reduction of the loop formed.

The right-sided part of FIG. 3 shows that, for example, a bicycle frame can be secured to a mast with such a loop shaped sensor element which is guided within the loop formed or at the open end by or in the opening 1 c of the alarm 1 to a verifiable electric circuit to build. Accordingly, the bicycle can only be removed from the mast if the sensor element 4c is severed, which also causes a severing of the electric circuit, which the alarm transmitter detects and signals, provided that it has not previously been defused.

The FIG. 4 illustrates another embodiment of sensor elements in the FIG. 1 not shown. For example, they may be sensor elements 4d that change their resistance or some other electrical property under the effect of moisture, such as that incident in the case of rain.

Here it is, as with the FIG. 2 described, provided between the two housing parts 1 a and 1 b of the alarm in the receiving area 6 to introduce an end of such a moisture-sensitive or generally weather-sensitive sensor element and so to achieve an electrical connection between the alarm and sensor element 4 d.

If rain hits the sensor element 4d, this changes its electrical property, such as the resistance, which can be determined by the electrical connection to the alarm by this alarm, after which it signals an alarm, such as optical, acoustic or telecommunications.

The right-hand representation of the FIG. 4 visualizes a possible application, namely, for example, the backup of an open-parked convertible, for which on the car seat such alarm device according to the invention is positioned, which then reliably detects when it starts to rain and the user, for example, by an SMS message or other telecommunications over this Notify a circumstance, even if the user is far away from the car parked open, for example, in a house in which he does not notice the onset of rain.

The FIG. 5 shows an embodiment in which two receiving areas are provided on the alarm for various types of sensor elements, namely an area 1 c to record an open end of a sensor designed as a cable tie sensor element or other band-shaped sensor element 4c, for which this example simply in this receiving area or its opening is inserted.

Here, opposite to the receiving region 1 c, a receiving region 1 d is provided, which serves to receive and, for example, contact a sensor element 4 a designed as an adhesive tape. For a folding axis 1 e may be provided, which is located in the area 1 c and around which the alarm device 1 can be opened, as it also FIG. 2 shows.

Without limitation to this embodiment shows the FIG. 5 also that the alarm transmitter 1, here on its upper side at least one key 1f may have for operation, eg for sharpening or for operating the mechanical attachment of a sensor element, for example, to effect opening of a receiving area.

FIG. 6 shows by way of example a plurality of electrical and / or mechanical connection possibilities between a preferably band-shaped sensor element and an alarm transmitter. The sensor element may be formed, for example, as a cable tie or as an endless belt from which a desired length is cut off.

The representations of the FIG. 6 illustrate that in the receiving area for such a band-shaped sensor element, for example, the tape ends of a sensor element can be arranged overlapping / overlapping each other eg in the radial direction (top left) or in the bandwidth can be arranged one above the other (top right) or for each tape end own recording or Contacting is provided (bottom left). In this case, for example, in each case the sensor element or a strap end of the same between two oppositely arranged contacts are clamped and thus both electrically contacted and mechanically fixed.

The above explanations make it clear that an alarm device according to the invention opens up a multiplicity of application areas and can be implemented cost-effectively, since the alarm transmitter 1 represents an always reusable unit that can be used by a user with possibly different sensor elements to cover different applications or fields of application.

Here it is regarded as an advantage that the individual sensor elements can be obtained from a supply of stocks or from an endless, in particular a strip supply, so that opens up the possibility to offer such sensor elements as a separate sales product for alarm devices according to the invention in the market.

Such sensor elements are according to the invention only consumed by their use and therefore always needed again when a previously protected or secured object to be unlocked and newly secured or when an alarm has led to the destruction of the sensor element.

This is for example in the application according to FIG. 4 the case in which a moisture-sensitive sensor element is used. When it has become humid, it has changed its electrical characteristic, indicating the alarm case, and thereafter can not be used again for displaying the same event. It therefore becomes a security for another object or to re-secure the same item a new dry sensor element 4d needed.

Based on the application example of FIG. 2 it may additionally be provided that a designed as at least one-sided adhesive sensor element belt 4a is made such that after a single adhesive attachment no removal of this sensor element of the secured object without changing the electrical property of this sensor element is possible. This does not necessarily mean that the adhesive matrix material surrounding the electrical conductors has to rupture, but an embodiment can be designed such that, when the adhesive tape is pulled off and the forces resulting therefrom, at least the conductors 5 arranged in the adhesive tape or on its surface rupture ,

Thus, it is also achieved by the structural nature of the sensor element designed as an adhesive tape that it is a disposable product of the sensor element, which can only be used once to secure an object.

In the versions of the FIG. 3 in which a sensor element is designed in the function or structural type of a cable tie, beyond the disposable property is evident, since due to the Einwegverrastung the open end in the eye of the sensor element opening the loop once formed of the sensor element 4c not without cutting this Sensor element is possible.

Thus, the one-way function is determined here by the constructive property of the sensor element. Accordingly, it can be provided in general for any type of sensor elements that they have such a mechanical design that after use or after detachment or removal of the sensor element used from the secured object, a repeated use is not possible, since removal preferably only below Destruction of the sensor element or at least under permanent change of its electrical property can be achieved.

Claims (13)

Alarm device comprising a mobile alarm transmitter (1), wherein the alarm transmitter (1) is adapted to detect a change in an electrical property of a sensor element (4a, 4b, 4c) connected to the alarm transmitter (1) and to signal an alarm in the event of a detected change , characterized in that the alarm transmitter (1) and at least one sensor element (4a, 4b, 4c) each form separate units and can be connected to one another in an electrically contacting manner, wherein the alarm transmitter (1) is designed as a reusable unit and the at least one sensor element ( 4a, 4b, 4c) is designed as a consumption unit. Alarm device according to claim 1, characterized in that the at least one sensor element (4a, 4b, 4c) is designed as a disposable unit, in particular which is consumed by the process of securing and unlocking an object to be protected. Alarm device according to one of the preceding claims, characterized in that it comprises at least one supply of sensor elements (4a, 4b, 4c), from or from which a single sensor element (4a, 4b, 4c) for connection to the alarm transmitter (1) can be removed is. Alarm device according to claim 3, characterized in that a supply of sensor elements (4a, 4b, 4c) is formed by at least one of the following possibilities: a. A plurality of at least identical, in particular identical, individual sensor elements (4c) b. A coil of, in particular endless sensor element material, from which a sensor element (4a, 4b) can be removed by cutting to length, in particular, wherein the sensor element material is designed to be adhesive on at least one side Alarm device according to one of the preceding claims, characterized in that a sensor element (4a, 4b, 4c) is band-shaped with at least one electrical line (5) which is electrically contacted by the alarm (1), in particular along the longitudinal extent of the band-shaped Sensor element (4a, 4b, 4c) extends, in particular that of material of the sensor element (4a, 4b, 4c) is surrounded and at least one end of the sensor element (4a, 4b, 4c) electrically contacted by the alarm (1) or the on at least one surface of the sensor element (4a, 4b, 4c) extends. Alarm device according to one of the preceding claims, characterized in that an alarm transmitter (1) at least one receiving area (1c, 1d), in which a sensor element (4a, 4b, 4c) with the alarm transmitter (1) is electrically contacting connectable. Alarm device according to claim 6, characterized in that an alarm transmitter (1) has at least two receiving areas (1 c, 1 d), which are adapted for the connection of different, in particular artverschiedenen sensor elements (4a, 4b, 4c). Alarm device according to claim 6 or 7, characterized in that a receiving area (1 c) is formed as an opening into which at least one end of a sensor element (4 c) can be inserted to produce an electrically contacting connection or is formed as a between two mutually pivotable housing parts (1 a, 1 b) of the alarm transmitter (1) trained insertion area (1 d), in the at least one end of a sensor element (4 a) after an opening pivoting of the housing parts (1 a, 1 b) can be inserted and electrically contacted by a closing pivoting is. Alarm device according to one of the preceding claims, characterized in that an alarm device, in particular an alarm transmitter (1) comprises a communication module, by means of at least one Alarm triggering an alarm signaling message to a communication device, in particular a mobile phone is sendable. Alarm device according to claim 9, characterized in that an alarm transmitter (1) can be defused by a message communicated to the alarm transmitter (1) and received by the communication module. Alarm device according to one of the preceding claims 9 or 10, characterized in that the alarm transmitter (1) is arranged to enable, over a limited period of time or a limited number of communications, the transmission and / or reception of messages via the communication module, in particular wherein Duration renewable or the number is increased. Alarm device according to one of the preceding claims, characterized in that the alarm transmitter (1), in particular on its upper side, preferably the upper side of a pivotable housing part (1a), at least one actuating element (1f), in particular at least one key (1f), by means of which the alarm can be sharpened. Alarm device according to one of the preceding claims, characterized in that the alarm transmitter (1), in particular on its upper side, preferably the upper side of a pivotable housing part (1a), at least one illumination device, in particular by means of a. an alarm is optically signaled, b. an optical acknowledgment message can be output to the user for acknowledgment of a performed action, in particular a sharpening or defusing, c. a continuous or intermittent lighting is effected.

Images