DE102019119569A1 - System for detecting an incision in a tarpaulin or wall of a vehicle - Google Patents

Abstract

The invention relates to a system (100) for detecting an incision in a tarpaulin of a truck or other vehicle. The system should ensure protection against cargo theft in trucks and, moreover, can be installed and retrofitted in a time-efficient and individually adapted manner without the use of tools. A system (100) is proposed with a circuit board (128), an evaluation unit (113) and an electrically conductive adhesive tape (102). The circuit board (128) comprises a first and a second contact (120, 122). The evaluation unit (114) is coupled to the circuit board (128). The electrically conductive adhesive tape (102) comprises a first and a second end section (130, 132). The first end section (130) of the electrically conductive adhesive tape (102) can be connected to the first contact (120) and the second end section (132) of the electrically conductive adhesive tape (102) can be connected to the second contact (122) of the circuit board (128), so that a closed circuit is created.

Description

The invention relates to a system for detecting incisions in a tarpaulin or a wall; in particular, the system can detect or detect incisions in a tarpaulin of trucks or other vehicles.

The increasing theft of transport goods from trucks and the associated task of transport security are becoming increasingly important in the transport sector. When attempting to rob a transport, one of the most common methods is to slit open the tarpaulin on trucks, preferably when the truck is parked overnight and the truck driver is asleep, in order to get to the loaded goods and steal them. The slashing of the tarpaulin or the stealing of the transport goods is often discovered too late to be able to react. Successful prosecution of the perpetrator becomes almost impossible.

Various systems for securing the load of a truck are known from the prior art. For example disclosed WO 2018/149458 A1 Alarm elements and alarm systems for securing transport, loading and storage goods, as well as methods for producing the alarm elements. The alarm elements comprise a carrier material, an alarm wire and several feed-through devices arranged on the carrier material, through which the alarm wire is passed in order to fix the alarm wire on the carrier material. Several of these alarm elements can be arranged on the inside on a tarpaulin and connected to one another to form an alarm system. If the alarm wire is (deliberately) damaged, an alarm is triggered. DE 20 2019 102 121 U1 describes a similar system.

DE 3931367 A1 describes tarpaulins for covering loading and / or passenger compartments of motor vehicles, which in particular are intended to prevent or at least make more difficult transport theft. The plans disclosed here contain electrical conductors distributed over a large area, which are connected to an alarm system. If the electrical resistance is increased by cutting several electrical conductors, this is recognized and an alarm is triggered. The electrical conductors are incorporated into the tarpaulin, for example, metalized threads can be woven into the tarpaulin.

In DE 10 2010 020 320 A1 a device and a method for protecting truck tarpaulins from damage and theft of cargo is disclosed. A rectangular double foil containing a copper wire is described. The double film can be incorporated into the tarpaulin during manufacture or retrofitted to the (mostly standardized side and rear) tarpaulin using industrial adhesive. If the wire is cut, the control technology detects this and triggers an acoustic alarm.

With the known alarm systems for securing against cargo theft in trucks, either the tarpaulin itself must be specially designed (e.g. integrated pockets for a wire to be passed through, contain interwoven wires, etc.) or an appropriate alarm system must be attached to the tarpaulin. The retrofitting means a complex installation, since the installation of the alarm system according to the known methods requires basic electrical knowledge (wiring of individual alarm elements to a system) and / or difficult handling because large and flat elements have to be attached. In addition, the regularities in their arrangements make the known systems predictable and thus avoidable as soon as the system used is known.

The object of the invention is to provide a system which ensures protection against cargo theft in trucks and which can also be installed and retrofitted in a time-efficient and individually adapted manner without the use of tools.

The object is achieved by a system according to claim 1 or by an electrically conductive adhesive tape according to claim 26.

A system can be used to detect an incision in a tarpaulin, in particular to detect an incision in a tarpaulin to cover a loading space of a truck.

The system for detecting an incision in a tarpaulin comprises a circuit board, an evaluation unit and an electrically conductive adhesive tape. The circuit board has a first and a second (electrical) contact. The evaluation unit is coupled to the circuit board. The electrically conductive adhesive tape has a first and a second end section. The first end portion of the electrically conductive adhesive tape is connected to the first contact and the second end portion of the electrically conductive adhesive tape can be or is connected to the second end portion of the circuit board, so that a closed circuit is created.

The connection of the first and the second end section to the first and the second contact of the printed circuit board can be an electrical contact.

Electronic components can be arranged on or on the circuit board. In particular, electronic components can be mechanically attached to the circuit board and electrically connected to the circuit board. The circuit board can be or can be attached to the tarpaulin via an adhesive.

The evaluation unit can be mechanically coupled to the circuit board and electrically connected to it. The evaluation unit can comprise at least one shift register and / or at least one microcontroller.

The electrically conductive adhesive tape can be attached to an inside of a tarpaulin of a truck. The adhesive tape can preferably be attached to the inside of the tarpaulin in a lattice structure, more preferably in a meandering manner.

The first end section of the adhesive tape can cover the first contact of the circuit board at least in sections, preferably completely, and the second end section of the adhesive tape can cover the second contact of the circuit board at least in sections, preferably completely.

A closed circuit can be produced by pressing or pressing the first end section of the adhesive tape onto the first contact of the printed circuit board and by pressing the second end section of the adhesive tape onto the second contact of the printed circuit board. The pressing can be carried out by a user without an additional tool. The pressing on can also be carried out via a first and a second pressing element, it being possible for one of the pressing elements to be used for pressing one of the end sections of the adhesive tape.

The evaluation unit can comprise a correlator and a voltage source. The voltage source can be a switching voltage source.

The voltage source can provide a voltage as an output signal. The output signal can be introduced into the second end section of the electrically conductive adhesive tape via the second contact. The correlator can measure an input signal via the first contact, which can be connected to the first end section of the electrically conductive adhesive tape, in particular the output signal provided by the voltage source.

The detected input signal can be correlated with the output signal by the correlator. The similarity of the input and output signals can preferably be determined by comparing the signals. A limit value for the similarity of the signals can be established to determine if the adhesive tape has been severed (incision in the tarpaulin).

If the limit value for the similarity of the signals is exceeded, this can indicate that there is no cut in the electrically conductive adhesive tape. If the value falls below the limit, this can mean that there is an incision in the adhesive tape. The adhesive tape can preferably be attached to the inside of a tarpaulin of a motor vehicle, so that an incision in the adhesive tape means an incision in the tarpaulin.

If the limit value of the similarity of the output to the input signal is detected, an alarm can be triggered by the evaluation unit. The alarm can be an acoustic or a silent alarm.

The silent alarm can be a visual alarm on a screen of an alarm receiver. The alarm recipient can be the user (e.g. truck driver) or a centrally responsible person, in particular security personnel or the police.

The voltage source can be a battery, in particular a button cell. The evaluation unit can include terminating resistors with which the load on the voltage source can be kept low.

The first and second contacts can each have a roughened surface. In this context, “roughened” can mean that the first and second contacts can each be technical surfaces that are not ideally smooth. In particular, “roughened” means that the surfaces of the contacts have a mean roughness value R _a of at least 0.3, measured according to DIN EN ISO 4287: 2010 .

The first and the second contact can comprise conductive corundum. The conductive corundum can preferably form the surface of the first and the second contact. The conductive corundum can be applied over the surface of the circuit board, at least in sections, and be electrically connected to the circuit board. The conductive corundum is preferably a granular electrical corundum.

The first and second contacts can comprise metal chips. The metal chips preferably form the surface of the first and the second contact. The metal chips can cover a surface of the circuit board at least in sections and be electrically connected to the circuit board.

The metal chips or the conductive corundum can be attached to the circuit board by means of an electrically conductive adhesive.

The first and second contacts can each contact the adhesive tape at a plurality of locations. The contacting is electrical contacting. Due to the preferably roughened surface of the first and second contact, when connecting the first and second end section of the electrically conductive adhesive tape to the first and second contact of the printed circuit board, a large number of simultaneously punctually contacted points can occur. The large number of points at which the adhesive tape is electrically contacted by the contacts can increase the contact reliability.

The electrically conductive adhesive tape can be a multi-layer adhesive tape. The multilayer adhesive tape can comprise a plurality of layers.

The multilayer adhesive tape can comprise a cover layer, an electrically conductive layer and an adhesive layer.

The cover layer can be a plastic film.

The electrically conductive layer can be a metal layer, in particular a metallization. The metallization can be a plastic metallization.

The electrically conductive layer can be an aluminum layer, in particular a vapor-deposited aluminum layer. The aluminum layer is preferably an aluminum layer vapor-deposited onto the cover layer.

The electrically conductive layer can have a first and a second side. The first side can be covered by the cover layer and the second side by the adhesive layer.

The first and second contacts have a higher roughness depth R _z , measured according to DIN EN ISO 4288: 1998, than the thickness of the adhesive layer, so that electrical contact can be made with the electrically conductive layer via the first and second contacts through the adhesive layer. It is assumed here that the electrically conductive layer adjoins the adhesive layer. The thickness or height of the adhesive layer extends, starting from a plane lying in the adhesive surface, perpendicular to the plane.

The electrically conductive layer can have a maximum thickness of 100 μm, preferably between 1.0 μm and 10.0 μm.

The adhesive layer can have a maximum thickness of 300 μm, preferably between 20.0 μm and 100.0 μm.

The electrically conductive adhesive tape can have a width between 3 mm and 50 mm, preferably between 5 mm and 20 mm, particularly preferably between 8 mm and 12 mm.

The adhesive layer can have a greater layer thickness than the electrically conductive layer and / or the cover layer.

The adhesive layer can be softer (lower hardness) than the top layer. The adhesive layer can be viscous.

The adhesive layer of each of the first and second end sections of the adhesive tape can be pressed onto each of the first and second contacts of the circuit board. The pressing on the contacts can take place in such a way that the contacts, due to their surface roughness, make punctual contact with the electrically conductive layer at a large number of points through the adhesive layer.

The surface pressure (pressure when pressing) can be in a range between 50 N / m ² and 1000 N / m ² .

The adhesive layer can cover at least some sections, preferably the entire surface of the contacts; in this way, the contacts are specifically isolated from environmental influences. The insulation can, for example, prevent or at least delay oxidation of the contacts.

The evaluation unit can send an output signal. The output signal can be an electrical voltage introduced into the adhesive tape.

The output signal can be a pseudostatic voltage sequence (Pseudorandom Binary Sequence - PRBS). The pseudostatic voltage sequence can be implemented via feedback shift registers or via software in a microcontroller. It is advantageous that pseudostatic voltage sequences have very little resemblance to other sources of interference.

The evaluation unit can receive an input signal, in particular the output signal. The output signal is introduced into the second end section, for example, by means of the voltage source and via the second contact. At the other end, in this example the first end section of the electrically conductive adhesive tape, the output signal arrives as an input signal via the first contact at the correlator. The correlator compares the measured input signal with the output signal, preferably with the PRBS function. As long as the signals are very similar, the adhesive tape is not severed. If the adhesive tape is cut, the two signals are not very similar and an alarm is triggered. To distinguish between the states of a severed adhesive tape and a non-severed adhesive tape, a limit value for the similarity of the signals can be specified.

The system can be operated with an operating current of less than 50 µA, preferably less than 20 µA.

The system can furthermore comprise a short-range radio module. The short-range radio module can be suitable for receiving and / or sending data (transceiver).

The short-range radio module can comprise components for control, in particular a microcontroller. The microcontroller can establish a connection between a user interface and a radio protocol. In addition, the microcontroller can encrypt data to be sent and decrypt data to be received. Furthermore, the short-range radio module can comprise an antenna. The short-range radio module can be coupled to the circuit board.

The short-range radio module can send signals using the time slot method.

The system can include a wide area network (WAN) communication unit. The short-range radio module can transmit data to the WAN-connected communication unit so that remote receivers can be alerted via the WAN communication unit.

Any of the systems disclosed herein can operate in a method of detecting an incision in a tarpaulin, particularly in a tarpaulin of a truck.

Any of the systems disclosed herein can be disposed on a tarpaulin or wall of a vehicle or trailer or cargo container.

Any of the systems disclosed herein can be used to detect an incision in a tarpaulin or wall of a vehicle or trailer or cargo container.

An electrically conductive adhesive tape comprises a cover layer, an electrically conductive layer and an adhesive layer.

The electrically conductive adhesive tape can be used in any of the systems disclosed herein.

The cover layer can be a plastic film.

The electrically conductive layer can be a metal layer, in particular a metallization. The metallization can be a plastic metallization.

The electrically conductive layer can be an aluminum layer, in particular a vapor-deposited aluminum layer. The aluminum layer can preferably be an aluminum layer vapor-deposited onto the cover layer.

The electrically conductive layer can have a first and a second side. The first side can be covered by the cover layer and the second side by the adhesive layer.

The electrically conductive layer can have a thickness between 1.0 μm and 10.0 μm. The adhesive layer can have a thickness between 20.0 μm and 100.0 μm. The electrically conductive adhesive tape can have a width of 10 mm. The adhesive layer can have a greater layer thickness than the electrically conductive layer and / or the cover layer.

In general, the thickness or height of the adhesive layer extends, starting from a plane lying in the adhesive surface, perpendicular to the plane.

The adhesive layer can be essentially softer (have a lower hardness) than the cover layer. The adhesive layer can in particular be viscous.

• 1 zeigt ein System 100 zur Erfassung eines Einschnitts in eine Plane in einer schematischen geschnittenen Teilansicht;
• 2 zeigt das System 100 zur Erfassung eines Einschnitts in eine Plane in einer schematischen Draufsicht.

The embodiments of the invention are illustrated by way of an example, but not in a way in which restrictions from the figures are transferred or read into the claims. The same reference symbols in the figures indicate the same elements.

• 1 shows a system 100 for detecting an incision in a tarpaulin in a schematic sectional partial view;
• 2 shows the system 100 for detecting an incision in a tarpaulin in a schematic top view.

1 shows a system 100 for detecting an incision in a tarpaulin, in particular in a tarpaulin of a loading space of a truck. The tarpaulin can also be a tarpaulin from a trailer or another tarpaulin or wall.

The system 100 includes a circuit board 128 , an evaluation unit 114 and an electrically conductive adhesive tape 102 . The circuit board 128 may have a substantially rectangular shape and may be configured to be mechanically coupled and electrically connected to a plurality of electronic components. The electrical connection can be made via a large number of electrically conductive lines (not shown).

The circuit board 128 has a back 134 and a front 136 on. On the back side 134 The assembly of (electronic) components is not planned, but not excluded. In particular, the back is 134 suitable to be attached flat to a tarpaulin by means of an adhesive. With the circuit board 128 is the evaluation unit 114 mechanically attached and electrically connected. Some schematic electrical connections are in 1 indicated with a dashed line.

The evaluation unit 114 includes a correlator 116 and a voltage source 118 . The voltage source 118 can provide an output signal, in particular a voltage. The voltage source 118 can be a switching voltage source.

The correlator 116 can receive an input signal. In particular, the correlator 116 correlate the input signal with a function or a predetermined (target) value in order to determine a similarity between the input signal and the function or a predetermined value. In particular, there can be a similarity between the output signal of the voltage source 118 and the input of the correlator 116 be determined.

A limit value can be set for the similarity. If the determined similarity is above the limit value of the similarity, it can be recognized or concluded that the adhesive tape 102 is intact. If the determined similarity is below the limit value, it can be recognized or concluded that the adhesive tape 102 is not (sufficiently) intact.

Also includes the circuit board 128 a first and a second contact 120 , 122 . The first contact 120 is electrical with the correlator 116 connected. The second contact 122 is electrical with the voltage source 118 connected.

The first and second contact 120 , 122 each comprise a conductive granular material, for example conductive granular corundum 124 that is on a first surface of the first contact 120 and on a second surface of the second contact 122 is appropriate.

In this illustration, the first contact and the second contact 120 , 122 each conductive granular corundum 124 (conductive granular material) and electrically conductive adhesive 126 . The conductive grainy corundum 124 is by means of the electrically conductive adhesive 126 with the circuit board 128 electrically connected.

The conductive granular material, e.g. the conductive granular corundum 124 , can have an (average) grain size of at least 100.0 µm. The conductive corundum can be preferred 124 have an (average) grain size of 160.0 µm, more preferably an (average) grain size of 220.0 µm. By using conductive granular corundum 124 or by using metal filings (not shown) or generally a conductive granular material, the contacts can become rough and sharp 120 , 122 surrender.

The first and second contact 120 , 122 can be flat on the circuit board 128 be trained. The conductive grainy corundum 124 can at least partially, preferably completely, the surfaces of the first and second contacts 120 , 122 cover or form.

To the surface of the first contact 120 is a first end portion 130 of the electrically conductive adhesive tape 102 appropriate. The same applies to the surface of the second contact 122 a second end section 132 of the electrically conductive adhesive tape 102 electrically connected, so that a closed circuit is created.

The electrically conductive adhesive tape 102 can be glued to an inside of the tarpaulin of the truck. The conductive tape 102 can be attached to the tarpaulin by a user in a lattice structure, preferably in a meandering manner. Applying the tape 102 can be done in such a way that there are no regularities in the attachment to the tarpaulin.

The electrically conductive adhesive tape 102 includes a top layer 104 , an electrically conductive layer 106 and an adhesive layer 108 . The top layer 104 can be a plastic film. The electrically conductive layer 106 may be a metal layer, more preferred is the conductive layer 106 a metallization. The top layer 104 can serve as a carrier material for the metallization ( Plastic metallization). The electrically conductive layer can be an aluminum layer, preferably one on the cover layer 104 vapor-deposited aluminum layer.

The electrically conductive layer 106 may include first and second sides. The first side can be of the top layer 104 and the second side of the adhesive layer 108 be covered.

The adhesive layer 108 can have a greater layer thickness than the electrically conductive layer 106 and / or the top layer 104 . The electrically conductive layer can have a layer thickness between 1.0 μm and 10.0 μm. The adhesive layer 108 can have a layer thickness or thickness between 20.0 µm and 100.0 µm. The electrically conductive adhesive tape 102 can have a width between 8 mm and 12 mm, especially about 10 mm. The adhesive layer 108 can be softer than the top layer 104 . The hardness of the top layer 104 can be greater than the hardness of the adhesive layer 108 . The adhesive layer 108 can be viscous.

The first end section 130 of the electrically conductive adhesive tape 102 is with the first contact 120 connected. The first end section 130 can at first contact 120 by means of a first pressure element 110 have been pressed with a force F. The electrical contacting of the first end section 130 of the tape 102 through the first contact 120 takes place in 1 so that the sharp-edged surface of the first contact 120 at a large number of points through the adhesive layer 108 occurs and with it the electrically conductive layer 106 of the electrically conductive adhesive tape. The second end section is the same 132 of the electrically conductive adhesive tape 102 through the second contact 122 electrically contacted. The second end section 132 can use a second pressure element 112 with the force F to the second contact 122 have been pressed. The surface pressure (pressure during the pressing) can be between 50 N / cm ² and 1000 N / cm ² .

The first and second end sections 130 , 132 can, at least in sections, each of the first and second surfaces of the first and second contacts 120 , 122 cover, preferably covers the first and the second end portion 130 , 132 each of the entire surface of the first and second contact 120 , 122 .

The voltage source 118 can use a voltage, in particular a pseudostatic voltage sequence, as an output signal via the second contact 122 in the second end section 132 of the electrically conductive adhesive tape 102 bring in. The correlator 116 can about the first contact 120 , the one with the first end section 130 of the electrically conductive adhesive tape 102 is connected to receive and measure the input signal, in particular that from the voltage source 118 provided output signal. The correlator 116 can correlate the measured input signal with the output signal in order to determine a similarity between the two signals.

As long as the similarity of the two signals is high (e.g. above a limit value), this means that the electrically conductive adhesive tape 102 is intact. As soon as the similarity of the two signals is low or not given (eg below a limit value), this means that the electrically conductive adhesive tape 102 has been damaged and an alarm is triggered. Because the electrically conductive tape 102 can be attached in particular to the inside of the tarpaulin of a truck, the damage to the electrically conductive adhesive tape can also indicate the simultaneous (and likely) damage to the tarpaulin.

2 shows the system 100 for detecting an incision in a tarpaulin in a schematic top view. The top view assumes that the system 100 is attached to an inside of the tarpaulin of a cargo space of a truck. The tarpaulin is not shown.

The electrically conductive adhesive tape 102 is attached in a meandering shape or in serpentine lines on the inside of the tarpaulin. The backside 134 the circuit board 128 is glued to the tarpaulin and not visible. The front 136 the circuit board 128 with the evaluation unit 114 is facing the hold. The correlator 116 and the voltage source 118 are shown schematically as essentially rectangular units.

The first and second end sections 130 , 132 of the tape 102 are with the circuit board 128 connected. The first and the second pressure element 110 , 112 can after pressing the first and second end sections 130 , 132 to the first and second contact, respectively 120 , 122 on the top layer 104 of the electrically conductive adhesive tape 102 stick when this is taped 102 are connected, or the first and second pressure element 110 , 112 can not mechanically with the tape 102 be connected.

The conductive tape 102 Can be attached to the tarpaulin or wall in any form, avoiding a predictable or fixed pattern.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2018/149458 A1 [0003]
• DE 202019102121 U1 [0003]
• DE 3931367 A1 [0004]
• DE 102010020320 A1 [0005]

Non-patent literature cited

• DIN EN ISO 4287: 2010 [0024]

Claims (33)

System (100) for detecting an incision in a tarpaulin, in particular in a tarpaulin for covering a loading space of a truck, the system (100) comprising: (A) a circuit board (128), the circuit board (128) comprising a first and a second contact (120, 122); (b) an evaluation unit (114), the evaluation unit (114) being coupled to the circuit board (128); (c) an electrically conductive adhesive tape (102) having a first and a second end portion (130, 132), the first end portion (130) of the electrically conductive adhesive tape (102) having the first contact (120) and the second end portion (132) of the electrically conductive adhesive tape (102) can be connected to the second contact (122) of the circuit board (128) so that a closed circuit is created. System (100) according to Claim 1 , wherein the evaluation unit (114) comprises a correlator (116) and / or a voltage source (118). System (100) according to Claim 2 wherein the voltage source (118) is a battery. System (100) according to one of the preceding claims, wherein the first and the second contact (120, 122) each have a roughened surface. System (100) according to one of the preceding claims, wherein the first and the second contact (120, 122) comprise conductive corundum. The system (100) according to any one of the preceding claims, wherein the first and second contacts (120, 122) comprise metal chips. The system (100) according to any one of the preceding claims, wherein the first and the second contact (120, 122) each contact the electrically conductive adhesive tape (102) at a plurality of locations. System (100) according to one of the preceding claims, wherein the electrically conductive adhesive tape (102) is a multilayer adhesive tape. System (100) according to Claim 8 wherein the multilayer adhesive tape comprises a cover layer (104), an electrically conductive layer (106) and an adhesive layer (108). System (100) according to Claim 9 , wherein the cover layer (104) is a plastic film. System (100) according to Claim 9 or 10 , wherein the electrically conductive layer (106) is a metal layer, in particular a metallization. System (100) according to Claim 9 to 11 , wherein the electrically conductive layer (106) is an aluminum layer, in particular a vapor-deposited aluminum layer. System (100) according to one of the Claims 9 to 12 wherein the electrically conductive layer (106) has a first and a second side, the first side being covered by the cover layer (104) and the second side being covered by the adhesive layer (108). System (100) according to one of the preceding claims, wherein the first and the second contact (120, 122) have a higher surface roughness (Rz _n ), according to DIN EN ISO 4288: 1998, than the thickness of the adhesive layer (108), so that the electrically conductive layer (106) can be contacted through the adhesive layer (108) through the first and second contacts (120, 122). System (100) according to one of the preceding claims, wherein the electrically conductive layer (106) has a thickness between 1.0 µm and 10.0 µm. System (100) according to one of the preceding claims, wherein the adhesive layer (108) has a thickness between 20.0 µm and 100.0 µm. System (100) according to one of the preceding claims, wherein the adhesive layer (108) has a greater layer thickness than the electrically conductive layer (106) and / or the cover layer (104). System (100) according to one of the preceding claims, wherein an output signal can be sent by the evaluation unit (114). System (100) according to Claim 18 wherein the output signal is an electrical voltage introduced into the adhesive tape (102). System (100) according to Claim 19 , whereby the output signal is a pseudo-static voltage sequence (Pseudorandom Binary Sequence - PRBS). System (100) according to one of the preceding claims, wherein an input signal can be received by the evaluation unit (114), in particular the output signal can be received. System (100) according to one of the preceding claims, wherein the system (100) can be operated with an operating current of less than 20 µA. System (100) according to one of the preceding claims, wherein the system (100) comprises a short-range radio module. System (100) according to Claim 23 , whereby signals can be sent by the short-range radio module using the time slot method. System (100) according to one of the preceding claims, wherein the system (100) comprises a wide area network (WAN) communication unit. Electrically conductive adhesive tape (102) for a system for detecting an incision in a tarpaulin, in particular from a tarpaulin to cover a loading space of a truck, the electrically conductive adhesive tape (102) comprising: (a) a cover layer (104); (b) an electrically conductive layer (106); (c) an adhesive layer (108). Electrically conductive adhesive tape (102) after Claim 26 , wherein the cover layer (104) is a plastic film. Electrically conductive adhesive tape (102) after Claim 26 or 27 , wherein the electrically conductive layer (106) is a metal layer, in particular a metallization. Electrically conductive adhesive tape (102) according to one of the preceding claims, wherein the electrically conductive layer (106) is an aluminum layer, in particular a vapor-deposited aluminum layer. Electrically conductive adhesive tape (102) according to one of the preceding claims, wherein the electrically conductive layer (106) has a first and a second side, the first side being covered by the cover layer (104) and the second side being covered by the adhesive layer (108) . Electrically conductive adhesive tape (102) according to one of the preceding claims, wherein the electrically conductive layer (106) has a thickness between 1.0 µm and 10.0 µm. Electrically conductive adhesive tape (102) according to one of the preceding claims, wherein the adhesive layer (108) has a thickness between 20.0 µm and 100.0 µm. Electrically conductive adhesive tape (102) according to one of the preceding claims, wherein the adhesive layer (108) has a greater layer thickness than the electrically conductive layer (106) and / or the cover layer (104).

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