EP2135263A1 - Kabel - Google Patents
KabelInfo
- Publication number
- EP2135263A1 EP2135263A1 EP08716729A EP08716729A EP2135263A1 EP 2135263 A1 EP2135263 A1 EP 2135263A1 EP 08716729 A EP08716729 A EP 08716729A EP 08716729 A EP08716729 A EP 08716729A EP 2135263 A1 EP2135263 A1 EP 2135263A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- information carrier
- cable according
- strand
- carrier unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
- H01B7/366—Insulated conductors or cables characterised by their form with distinguishing or length marks being a tape, thread or wire extending the full length of the conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
- H01B7/368—Insulated conductors or cables characterised by their form with distinguishing or length marks being a sleeve, ferrule, tag, clip, label or short length strip
Definitions
- the invention relates to a cable comprising a Kabeünnen emotions, in which extends at least one conductor strand of an optical and / or electrical conductor in the cable longitudinal direction, a cable inner body enclosing the cable sheath, which is located between a cable outer surface and the cable inner body, and at least one disposed within the cable outer surface information carrier unit.
- Cables with an information carrier unit are known from the prior art. However, in the known solutions is not specified in detail how the information carrier unit can be arranged in the cable to process the cable optimally and inexpensively to produce and on the other hand to be able to set suitable locations for the information carrier unit.
- the invention is therefore an object of the invention to improve a cable of the generic type with respect to its structure such that the information carrier unit is reliably arranged with ease of manufacture at appropriate locations in the cable.
- the cable inner body is assigned a running along the same length of carrier strand, that at least one readable by electromagnetic field coupling information carrier unit is arranged on the carrier strand and that the carrier strand is covered by the cable sheath.
- the advantage of the solution according to the invention is to be seen in that the carrier strand provides an optimal possibility to optimally position the information carrier unit in the cable, and thus in particular also permits a cost-effective and simple production of the cable.
- the solution according to the invention also created a way to improve the readability and findability on the defined positioning of the information carrier unit, as a possibility of the defined arrangement of the information carrier unit was created by the inventive solution, which allows to use information carrier units, the for example, can be read over short ranges.
- the information carrier unit should be readable by electromagnetic field coupling, it should be understood that the read-out of the information carrier unit should be possible both in the LF frequency range, as well as in the RF frequency range or in the UHF frequency range.
- an exemplary embodiment provides that the carrier strand runs parallel to a longitudinal direction of the cable inner body.
- this can be realized simply by designing the carrier strand as an auxiliary strip, which is fed to the cable inner body optionally provided with a separating layer in the manufacture of the cable, rests against the latter and is then covered by the cable sheath produced by extrusion.
- another embodiment provides that the carrier strand runs around the at least one conductor strand of the inner cable body.
- Such a looping course can be realized in various ways.
- the carrier strand is formed as the cable inner body wrapping and thus spirally surrounds the inner cable body, the orientation of the carrier strand in this case can be completely independent of a stranding of the conductor strand.
- the carrier strand runs approximately in the same direction or in opposite directions to a stranding direction of the conductor strands.
- the carrier strand In approximately parallel and co-directional course can be stranded together with the conductor strand, for example, in the manufacture of the cable, the carrier strand.
- the carrier strand may be a carrier strand independent of the inner cable body.
- the carrier strand may also be formed as part of the cable inner body, namely, for example, when the carrier strand is in the form of a gusset cord of the cable inner body.
- the carrier strand can be arranged in different ways relative to the cable inner body.
- the carrier strand lies directly on the cable inner body.
- the carrier strand is at least part of a separating layer between the cable inner body and the cable sheath.
- the carrier strand it is advantageous for flexible cables, for example, if the carrier strand does not disturb the mechanical conditions in the cable.
- the carrier strand in the cable acts symmetry neutral. This means that there is no disturbance of the mechanical symmetry of the forces occurring during bending of the cable, which would be the case, for example, if the carrier strand would make it difficult or easier for the cable to bend in one direction in relation to other directions.
- the mechanical conditions in the cable can be maintained undisturbed in a simple manner.
- the carrier strand is located on a separating layer between the cable inner body and the cable sheath.
- the information carrier unit can be arranged relative to the carrier strand in different ways.
- the information carrier unit is arranged on a side of the carrier strand facing the cable inner body.
- the information carrier unit lies directly on the cable inner body or the carrier strand lies on the separating layer, so that then the information carrier unit is arranged between the carrier strand and the separating layer.
- the information carrier unit is arranged on a side facing away from the cable inner body of the carrier strand.
- the information carrier unit is covered directly by the cable sheath.
- Another possibility provides that the information carrier unit is embedded in the carrier strand. This is the case in particular when the carrier strand runs in the form of a gusset cord in the cable inner body.
- the information carrier unit is arranged so that no disturbance of the relative movement of separating layer and inner cable body, in particular by changing friction between them, to avoid flexible and highly flexible cables, for example, the formation of a twist of inner cable body and cable sheath ,
- the information carrier unit comprises a base.
- an integrated circuit of the information carrier unit is arranged on the base.
- a line acting as an antenna is arranged on the base.
- the antenna can be made of printed conductors produced by a paint applied to the base.
- An embodiment in which the antenna is applied to the base by a printing process is particularly favorable.
- the base is a rigid body.
- the base may for example be a plate or at least part of a Einbett stressess, in which the integrated circuit and the line for the antenna are at least partially embedded.
- the base is at least part of a embedded body enclosing the integrated circuit and the antenna.
- the embedding body may, for example, be in the form of a lens, a half-lens or a cylinder.
- the base is made of a bendable material.
- Such a bendable material could for example be a resiliently flexible material.
- the bendable material is a so-called limp material.
- the bendable material is tensile in at least one direction.
- an advantageous solution provides that the base is fixed to the carrier strand.
- the base is fixed via at least one connection point with the carrier strand.
- Such a solution does not require full-surface bonding of the base to the carrier strand, but it is sufficient, for example, a partial or sectional bonding of the base to the carrier strand.
- the at least one connection point is a splice.
- the carrier strand forms a portion of the base.
- the carrier strand is a gusset cord in which the integrated circuit and the line for the antenna are embedded.
- manufacture the entire carrier strand from a material suitable as the basis for the information carrier unit, for example from a pliable strip material.
- an advantageous embodiment provides that one information carrier unit is arranged per cable.
- this has the disadvantage that then there is the problem with the reader to find the one information carrier unit of the cable to read the information stored in this.
- a plurality of information carrier units are arranged on the carrier strand.
- the plurality of information carrier units could in principle be arranged at arbitrary intervals on the carrier strand.
- the information carrier units are arranged in the longitudinal direction of the cable in a defined spacing grid.
- the defined spacing grid could also specify variable distances, for example, at the ends of the cable smaller distances, which increase towards the center. In the simplest case, however, it is expedient if the defined spacing grid for the information carrier units specifies a uniform distance between the information carrier units in the longitudinal direction of the cable.
- the information carrier units in the longitudinal direction of the cable have a read / write range, which depends on the frequency at which they are operated and also how the antenna is formed.
- the information carrier units are arranged relative to each other in the spacing grid so that the distances between the information carrier units at least a 2-fold correspond to a read / write range of the information carrier units in the direction of the nearest information carrier unit.
- the distances correspond at least to at least 2.5 times the read / write range of the information carrier units in the direction of the closest information carrier unit.
- the information carrier unit has at least one memory for the readable information.
- a memory could be designed in various ways.
- the memory could be designed so that the information stored in this memory is overwritten by the reader.
- the memory has a memory field in which information written once is stored in read-only memory.
- Such a memory field is suitable for storing, for example, an identification code for the information carrier unit or other data specific to this information carrier unit, which are no longer changeable by any of the users.
- Such a memory field is also suitable for the cable manufacturer to store information that should not be overwritten. For example, these are cable data, cable specifications or information on the type and usability of the cable.
- this data may also be supplemented, for example, by data that includes information about the manufacture of this particular cable or data that represents measurement protocols from a final test of the cable.
- a memory according to the invention may be further designed such that it has a memory field in which information is stored in read-only memory by an access code.
- a read-only storage of information may include, for example, data that can be stored by a user.
- a user in the memory array after assembling the cable could store data about the assembly of the cable or about the total length of the cable or about the respective lengths of the cable, the user being provided an access code by the cable manufacturer for this data in store the memory field.
- a further advantageous embodiment provides that the memory has a memory field which is freely writable with information.
- Such a memory array can record, for example, information that should be stored by the cable user in the cable, for example, the nature of the installation or the packaging of the same.
- each of the information carrier units carries a different length specification, so that by reading the length of an information carrier unit whose distance to one of the ends of the cable or to both ends of the cable can be determined. For this reason, it is favorable if each of the information carrier units is individually addressable by an access code.
- a further advantageous solution of a cable according to the invention provides that the at least one information carrier unit of the cable acquires measured values of an assigned sensor, that is to say that the information carrier unit not only stores external information and then makes it available again but is capable of itself information of the sensor Cable, that is, physical state variables of the cable detected.
- the senor detects at least one of the state variables such as physical radiation, temperature, tension, pressure, strain or moisture.
- a particularly advantageous solution provides that shear stresses in the cable can be detected with the sensor.
- an advantageous solution provides that the information carrier unit reads out the sensor in the activated state. This means that the information carrier unit does not have its own power supply, but must be activated by an external power supply.
- the information carrier unit can be activated by a reading device.
- the information carrier unit can be activated by an electromagnetic field of a current flowing through the cable.
- Such an electromagnetic field can be achieved, for example, by the fact that a current flows through the cable to supply devices that build up the electromagnetic field.
- the information carrier unit stores the measured values in a memory field of the memory.
- the information carrier unit in the memory field stores a measured value only if this one Threshold exceeds. This can be done, for example, in such a way that the information carrier unit constantly records the measured values, but the information carrier unit is given a threshold value from which the measured values are stored, so that normal states are not stored, but only the measured values which are defined by the threshold value are stored Normal state does not correspond.
- these measured values are then stored as mere measured values, in somewhat more complex cases as measured values with an indication of the time at which they were recorded, or with other circumstances in which these measured values were recorded.
- an advantageous solution provides that the information carrier unit only stores measured values in the memory field which lie outside a statistically determined normal measured value distribution.
- an advantageous solution provides that the sensor detects at least one state variable of the cable inner body.
- Another solution provides that the sensor detects at least one state variable of the cable sheath.
- the senor detects at least one state variable between the cable inner body and the cable sheath.
- the sensor detects at least one state variable between the cable inner body and the cable sheath.
- both a sensor for state variables of the cable inner body and a sensor for state variables of the cable sheath is provided.
- an advantageous embodiment provides that the sensor is an irreversibly reacting to the state variable to be detected sensor.
- Such a sensor has the advantage that it reacts irreversibly when the state quantity occurs, so that it is not necessary for the sensor and in particular the information carrier unit at the time of occurrence of the state variable to be detected or the occurrence of the deviation of the state variable to be detected is active. Rather, at all later times, the sensor is capable of generating a measurement that corresponds to the state quantity that has been reached at some point in the past.
- the senor is a reversibly reacting sensor with regard to the state variable to be detected.
- the state variable to be detected or the change of the state variable to be detected occurs, it is necessary to activate the sensor in order to be able to detect the measured value corresponding to this state variable.
- the cable sheath may be an opaque, in particular fillers exhibiting cable sheath.
- the cable sheath comprises a transparent material in the visible spectral range, so that the cable sheath, due to its transparency, opens the possibility of optically checking the location of the information carrier unit in the cable longitudinal direction Determine cable.
- Another way to be able to detect the location of the information carrier unit simple and reliable for a user provides that the cable sheath carries a label and that the label is arranged in a defined relation to the location of the information carrier unit, so that opens up the possibility by the label to easily find the location of the information carrier unit.
- Fig. 1 is a schematic block diagram of a first embodiment of an information carrier unit according to the invention
- FIG. 2 is a block diagram similar to FIG. 1 of a second embodiment of an information carrier unit according to the invention.
- FIG. 3 shows a block diagram similar to FIG. 1 of a third exemplary embodiment of an information carrier unit according to the invention
- FIG. 4 is a perspective view of a first embodiment of a cable according to the invention.
- FIG. 5 shows a section through the separating layer in Fig. 4 in the region of
- Fig. 6 is a plan view of an implementation of the information carrier unit used in Figs. 5 and 6;
- Fig. 7 is a plan view similar to FIG. 6 on a first variant of
- Fig. 8 is a plan view similar to FIG. 6 on a second variant of
- FIG. 9 is a plan view similar to FIG. 6 on a third variant of
- FIG. 10 is a view similar to Figure 4 through a second embodiment of an information carrier unit according to the invention ..;
- FIG. 11 shows a section similar to Figure 5 through the second embodiment of the cable according to the invention.
- FIG. 12 is a perspective view of a cable piece according to the second embodiment of the cable according to the invention.
- FIG. 13 is a view similar to FIG. 4 of a third embodiment of a cable according to the invention.
- FIG. 14 shows a representation similar to FIG. 4 of a fourth exemplary embodiment of a cable according to the invention
- Fig. 15 is a view similar to Figure 4 of a fifth embodiment of a cable according to the invention.
- FIG. 17 is a view similar to FIG. 4 of a sixth embodiment of a cable according to the invention.
- Fig. 19 is a perspective view of a cable piece similar
- 20 is a perspective view of a seventh embodiment of a cable according to the invention, only shown in the region of a cable inner body;
- 21 is a perspective view of a portion of a
- Fig. 22 is a perspective view of a portion of
- An exemplary embodiment of an information carrier unit 10 to be used according to the invention, illustrated in FIG. 1, comprises a processor 12 with which a memory denoted overall by 14 is coupled, wherein the memory is preferably designed as an EEPROM.
- an analog part 16 which interacts with an antenna unit 18, is coupled to the processor 12.
- the analog part 16 is capable of generating the necessary electrical current for the operation of the processor 12 and of the memory 14 and of the analog part 16 itself on the other hand, to provide the information signals transmitted by electromagnetic field coupling at a carrier frequency to the processor 12 or to transmit information signals generated by the processor 12 via the antenna unit 18 to the reader 20.
- the antenna unit 18 acts essentially as a second coil of a transformer formed by the antenna unit 18 and the reader 20, the energy and information transmission being substantially via the magnetic field.
- the range between the reader 20 and the antenna unit 18 is low, that is, for example, the mobile reader 20 must be brought very close, to less than 10 cm, to the antenna unit 18.
- the antenna unit 18 also acts substantially as a coil, still good energy transfer at a sufficiently long range in the interaction between the antenna unit 18 and the reader 20 is possible, the distance for example, less than 20 cm.
- the antenna unit 18 is designed as a dipole antenna, so that when not using the mobile reader 20 power supply of the information carrier unit 10, a long range in communication with the reader 20, for example, up to 3 m can be realized, the interaction between the Reader 20 and the antenna unit 18 via electromagnetic fields.
- the carrier frequencies are about 850 to about 950 MHz, or about 2 to about 3 GHz, or about 5 to about 6 GHz.
- the range in communication is up to 20 cm.
- the antenna units 18 are formed differently.
- the antenna unit 18 is formed as a compact, for example, wound coil with an extension, which may also be less than one square centimeter.
- the antenna unit 18 is also formed as a sheet-like coil, which may also have a larger dimension in the dimension of several square centimeters.
- the antenna unit 18 is designed as a dipole antenna of very different characteristics.
- the memory 14 cooperating with the processor 12 is preferably divided into a plurality of memory fields 22 to 28, which can be written in different ways.
- the memory field 22 is provided as a memory field which can be written by the manufacturer and carries, for example, an identification code for the information carrier unit 10. This identification code is written in the memory field 22 by the manufacturer, and at the same time the memory field 22 is provided with a write inhibit.
- the memory array 24 can be provided, for example, with a write lock that can be activated by the cable manufacturer, so that the cable manufacturer has the option of describing the memory array 24 and of securing the information in the memory array 24 by means of a write lock.
- the processor 12 has the ability to read out and output the existing information in the memory array 24, but the information in the memory array 24 can not be overwritten by third parties.
- the information stored in the memory array 24 is information about the type, type of cable and / or technical specifications of the cable.
- information is stored by the buyer of the cable and provided with a write protection.
- the buyer and user of the cable stores information about the installation and use of the cable and secured by the write lock.
- memory array 28 information is freely writable and freely readable, so that this memory array can be used during use of the information carrier unit in conjunction with a cable for storing and reading information.
- the illustrated in Fig. 1 embodiment of the information carrier unit 10 is a so-called passive information carrier unit and thus requires no energy storage, in particular no accumulator or no battery to interact with the reader 20 and to exchange information.
- the processor 12 is associated with a sensor 30, with which the processor 12 is able to detect physical quantities of the cable, such as radiation, pressure, temperature, train or moisture, and for example corresponding Store values in the memory array 28.
- the sensor 30 can be designed depending on the field of use.
- the senor 30 for measuring a pressure as a pressure-sensitive layer, the pressure sensitivity being able to be measured capacitively, for example by means of a resistance measurement or in the case of a multilayered layer.
- the senor as a temperature sensor to form the sensor as a resistor variable with the temperature, so that a temperature measurement is possible by a resistance measurement.
- the senor When forming the sensor as a tensile or strain sensor, the sensor is designed, for example, as a strain gauge, which changes its electrical resistance depending on the strain.
- the senor is designed to be irreversibly sensitive to a specific strain or to a particular train
- the tension measurement or the strain measurement could also be realized by a capacitive measurement if necessary.
- the sensor is preferably formed as a multi-layered layer structure, which changes its electrical resistance or its capacity depending on the humidity.
- the second embodiment of FIG. 2 operates in the same manner as the first embodiment.
- a third embodiment 10 ", shown in Fig. 3 the analog part 16 associated with an antenna unit 18", which has a two-part effect, namely, for example, an antenna portion 18a, which communicates with the reader 20 in a known manner and an antenna part 18b, which by induction is able to couple to an alternating magnetic field 32 and deprive it of energy in order to operate with this energy extracted from the alternating magnetic field 32, the information carrier unit 10 "independently of the reading device 20.
- the alternating electromagnetic field 32 can be generated by the stray field of an AC line, which is connected, for example, to a 50 Hz AC voltage source. This makes it possible, regardless of whether the reading device 20 is to be read or read information, to supply the information carrier unit 10 "with energy as long as the alternating field 31 is present.
- the information carrier unit 10 "can be activated by switching on the electromagnetic alternating field 31 so that physical state variables can be measured by the sensor 30 and detected by the processor 12 and stored, for example, in the memory field 28, independently of the question as to whether the reading device 20 the antenna unit 18 is coupled or not.
- the alternating electromagnetic field 31 can be generated by the stray field of a data line, a control line, a pulsed power line or an AC line, which is connected, for example, to a 50 Hz or higher frequency AC power source. This makes it possible, regardless of whether the reading device 20 is to be read or read information, to supply the information carrier unit 10 with energy as long as the alternating field 31 is present.
- the frequency of the alternating field 31 and a resonant frequency of the antenna part 18b can be adapted to each other so that the antenna part 18b is operated in resonance and thus allows an optimal energy input from the alternating field 31.
- Such independent from the reader 20 supply of the information carrier unit 10 with electrical energy is particularly useful if the sensor 30 for long periods a physical state variable is to be detected, which do not coincide with the period of coupling of the reader 20 to the antenna unit 18 a, but should be independent of this.
- the information carrier unit 10 can be activated by switching on the alternating electromagnetic field 31 so that physical state variables can be measured by the sensor 30 and detected by the processor 12 and stored, for example, in the memory field 28, regardless of the question whether the reading device 20 with the Antenna unit 18 is coupled or not.
- An information carrier unit corresponding to the exemplary embodiments described above can be used in a cable according to the invention in different variants.
- a first exemplary embodiment of a cable 40 shown in FIG. 4 comprises an inner cable body 42, in which a plurality of electrical conductor strands 44 extend, wherein the electrical conductor strands 44 each have, for example, a core 46 of an electrical conductor which is insulated.
- the electrical conductor strands 44 are preferably stranded together about a longitudinal axis 48, that is, they are disposed about the longitudinal axis 48 around and extend at an angle to a parallel to the longitudinal axis 48, which intersects the respective conductor strand 44.
- the inner cable body 42 is enclosed by a separating layer 52 which separates the inner cable body 42 from a cable sheath 62, which encloses the inner cable body 42 and forms a cable outer surface 64. - ..y -
- the separating layer 52 is formed by a band 54 which is wound around the cable inner body 42, with a slope which deviates from that of the stranded conductor strands 44.
- the band 54 is, for example, a non-woven band which is wound around the inner cable body 42, either non-overlapping or overlapping, during production of the cable 40 prior to the extrusion of the cable sheath 62 and, as shown in FIG. 5, on its side facing the inner cable body 42 Information carrier unit 10 which is arranged on a base 70.
- a base 70 thereof extends in a longitudinal direction 71 and carries an integrated circuit 72 comprising the processor 12, the memory 14 and the analog part 16, as well as tracks provided on the base 70 74, which form the antenna unit 18.
- the printed conductors 74 can be applied to the base 70 by means of any shape-selective coating processes, for example in the form of printing of a conductive lacquer or of a conductive paste.
- the base 70 is, for example, a bendable, especially flimsy material, for example, a plastic tape on which on the one hand, the conductor 74 by coating easily and permanently applied and on the other hand, the integrated circuit 72 is easy to fix, in particular so that in large extent a permanent electrical connection between external connection points 76 of the integrated circuit 72 and the conductor tracks 74 can be realized.
- a bendable, especially flimsy material for example, a plastic tape on which on the one hand, the conductor 74 by coating easily and permanently applied and on the other hand, the integrated circuit 72 is easy to fix, in particular so that in large extent a permanent electrical connection between external connection points 76 of the integrated circuit 72 and the conductor tracks 74 can be realized.
- the base 70 is now arranged so that it faces the cable inner body 42, in particular the conductor strands 44, so that the integrated circuit 72 and the conductor tracks 74 facing the belt 54 and Thus, between the band 54 and the base 70 are arranged protected so as to avoid damage to the conductor track 74, especially in the region of the outer connection points 76 already during cable production.
- the base 70 rests on the cable inner body 42 with a surface which does not hinder sliding on the inner cable body 42 and thus does not disturb the friction conditions between the inner cable body and the separating layer 52 fixedly connected to the cable sheath 62.
- the base 70 is adhesively bonded to the tape 54 by an adhesive, prior to wrapping the cable body 42 through the tape 54, so that when wrapping the cable inner body 42 with the tape 54 also defines the information carrier unit 10 in the cable in a simple manner can be introduced and integrated.
- the band 54 preferably covers the inner cable body 42 substantially completely, so that this causes a mechanical separation of inner cable body 42 and cable sheath 62 and essentially defines the friction conditions for the relative to the belt 54 during bending of the cable 40 moving inner cable body 42.
- the information carrier unit 10 still the sensor 30, for example, a radiation sensor for all types of physical radiation, a - 3i -
- Temperature sensor, a tensile or strain sensor or a moisture sensor may be formed over a large area as a layer 32 and disposed on the base 70 adjacent to the antenna unit 18, as shown in Fig. 7.
- the senor 30 is designed as a multilayer layer structure 34 and can thus be operated as a capacitive sensor 30 in a space-saving design.
- moisture, temperature or pressure due to the state-dependent capacity can be detected in a simple manner.
- Such a sensor 30 may be easily contacted by the integrated circuit or formed as part thereof.
- the base 70 is formed as a flat material, it is advantageous if it is formed with edge regions which are dull for its surroundings in order to avoid damage to the surroundings of the base 70 in the cable 40 when the cable is moved.
- edge regions which are dull for its surroundings in order to avoid damage to the surroundings of the base 70 in the cable 40 when the cable is moved.
- the senor 30 is designed as a strain gauge 36, which is arranged in this embodiment on a base 70 connected to the substrate 37, which is stretchable in a longitudinal direction 38 of the strain gauge 36.
- the pad 37 together with the strain gauges 36 can be in this perennialsbeispie! advantageously fix on the part to be measured or embed in this, so that the elongation of this part or the environment of Pad 37 is transferred to the substrate 37 and thus the pad 37 unadulterated absorb the strain of their environment and can transmit to the strain gauge 36.
- the longitudinal direction 38 runs in this,sbeispie! for example, transversely to the direction 71, which represents a longitudinal direction of the base 70, but can also extend parallel to this.
- this information carrier unit 10 if the expansion strip 36 is firmly connected to a component of the cable to be stretched, strains in the longitudinal direction 38 of the strain gauge 36 can be measured and detected by the processor 12 on the integrated circuit 72.
- the strain gauge 36 is firmly fixed to the band 54 according to FIG. 9, in particular together with the base 37, wherein the longitudinal direction 71 of the base 70 runs approximately parallel to the longitudinal direction 56 of the band 54, so that with the strain gauge 36 train or strains, for example, transverse to the longitudinal direction 56 of the belt 54 can be detected.
- strains of the belt 54 are then representative of the stress on the cable 40 during bending and can be detected in this embodiment by the processor 12, optionally stored, and read out via the reading device 20.
- Strain gauge 36 may be either of a tensile or elongated material forming a crack, so that its electrical resistance increases irreversibly when a threshold value of tension or strain is exceeded, for example becomes very large.
- the strain gauge 36 may also be made of a reversibly changing its resistance with the occurring train or the strain occurring material.
- the base 37 is fixed, for example by gluing, with one end on the inner cable body 42 and one upper side of the respective upper surface facing away from the lower surface 37
- Strain gauge strip 36 fixed with the opposite end in the longitudinal direction 38 on the belt 54, wherein in the finished cable 40 is an intimate connection between the belt 54 and the extruded on this cable sheath 62, so that with the strain gages 36 then relative movements between the cable inner body 42 and the cable sheath 62 can be detected with the relative to this fixed band 54.
- the base 70 is arranged on a side facing away from the cable inner body 42 of the tape 54 wrapping around this area, in such a way that the integrated circuit 72 with the conductor tracks 74 is also located between the base 70 and the band 54 and thus protected on both sides.
- the information carrier unit 10 with the wrapping of the cable inner body 42 in the manufacture of the cable 40 'defined in this bring, the information carrier unit 10 is embedded in the cable sheath 62 and thus fixed together with the separating layer 52 on the cable sheath 62, so that in flexible and highly flexible cables no interference of the friction between the inner cable body 42 and the separating layer 52 by the information carrier unit 10 can take place.
- the information carrier unit 10 according to the first and second embodiments of the cable according to the invention is designed, for example, as an information carrier unit 10 which operates in the HF or UHF frequency range, that is, has an antenna unit 18 whose extension is, for example, several square centimeters.
- the fact that the base 70 is arranged on the side of the separating layer 52 facing away from the cable inner body 42 makes it possible to optically recognize the base 70 of the information carrier unit 10 when the cable sheath 62 is made of a transparent material in the visible range.
- FIG. 12 Such a solution is shown in Fig. 12, wherein a plurality of information carrier units 10 at uniform intervals A in the longitudinal direction 50 of the cable 40 'are arranged successively, so that the information carrier units 10 in a defined geometrical pitch, namely with the distance A, over the entire length of the cable 40 'successive.
- a position in the longitudinal direction of the cable 40 'by the information carrier units 10 so that, after reading one of the information carrier units 10, it can be seen at what distance it is positioned from one of the ends of the cable 40'.
- the memory field 26 with information about the position of the respective information carrier unit 10, for example, the distance from the two ends of the cable 40 'writable by the user.
- the position of the respective information carrier units 10 can already be recognized from the outside in the visible spectral region of the cable sheath 62, and can approach the reader 20 in a defined manner; to read the information from the respective information carrier units 10.
- the cable sheath 62 on the cable outer surface 64 carries a label 80, which additionally has a labeling gap 82, wherein the height of the labeling gap 82, the information carrier unit 10 in the cable 40 ' is.
- each position of an information carrier unit 10 the label 80 associated with the labeling gap 82 so as to facilitate finding the information carrier unit 10. Even if the cable sheath 62 is not transparent in this embodiment, there is also, simply by approaching the labeling gap 82, the ability to easily locate and read the information carrier unit 10 in the cable 40 '.
- a read / write range R of the information carrier units is further selected so that the write / read range R of the individual information carrier units 10 in the longitudinal direction 50 of the cable 40 does not overlap, but sufficient spaces between the respective write / read ranges R exist in that each of the information carrier units 10 can be individually approached and read by the reading device 20.
- the distance A of the information carrier units 10 is at least twice the read / write range R of the information carrier units 10, even better are larger distances, for example at least 2.5 times the read / write range R.
- a third exemplary embodiment of a cable 40 "according to the invention illustrated in FIG. 13, in contrast to the second exemplary embodiment, the profile of the band 54 forming the separating layer 52 is selected such that it runs essentially parallel to the stranded conductor strands 44, so that also the information carrier unit 10, in particular the base 70 thereof likewise extends with its longitudinal direction 71 approximately parallel to the course of the conductor strands 44 stranded together about the longitudinal axis 48.
- this third exemplary embodiment of the cable 40 "according to the invention corresponds to the extent to which the same parts are provided with the same reference numerals, the second and the first exemplary embodiment, so that reference can be made to the full content of the explanations here.
- the band 54 runs in opposite directions to the conductor strands 44 stranded together about the longitudinal axis 48, so that the longitudinal direction 71 of the base 70 and the conductor strands 44 run obliquely or transversely to one another.
- the separating layer 52 is formed by a so-called auxiliary belt 54, which substantially encloses the inner cable body 42 in a circumferential direction 53 and has longitudinal edges 55a, 55b essentially abut each other or at a small distance from each other or even overlap with each other, so that substantially a complete enclosure of the cable inner body 42 is ensured.
- the supplemental tape carries the information carrier unit 10, which extends with the longitudinal direction 71 of the base 70 approximately parallel to the longitudinal direction 50 of the cable 40 "", wherein the base 70 in the circumferential direction 53 in Essentially clings to the attachment tape 54 '.
- the information carrier unit 10 is preferably located on a side facing away from the cable inner body 42 of the separating layer 52 and is embedded in the material of the cable sheath 62 during extrusion of the same together with the separating layer 52.
- a sixth embodiment of a cable according to the invention 40 ""'to produce the information carrier unit 10 as a disc-shaped circular structure, which is held on a carrier tape 54, which on a the cable inner body 42nd remote side of the separating layer 52 rests and extends parallel to the longitudinal direction 50 of the cable 40 ""'over its entire length, wherein the carrier tape 54 is provided at defined intervals with a disk-shaped information carrier unit 10.
- This information carrier unit 10 as shown in Fig.
- tracks 74 are embedded in a base material 70 'forming investment material 90, for example made of resin or plastic material.
- the information carrier unit 10 in this case is a disc-like rigid body with rounded edge portions, which is introduced in the manufacture of the cable 40 in this by supplying the carrier tape 54 and positioned at defined intervals within the cable 40.
- the information carrier unit 10 it is also possible to form the information carrier unit 10 as a lens-like or semi-lens-like body. With such a design, damage to an environment in the cable when bending the cable is avoidable.
- the carrier tape 54 To receive the base 70 'while the carrier tape 54 is provided with cultivatedverbreiterten areas 57, to which the respective base 70' of the corresponding information carrier unit is glued, with the area widened areas 57 narrow areas 58 of the carrier tape 54 follow, each extending between the area Areas 57 extend.
- the carrier tape 54 with the separator layer 52 regardless of how this is applied to the cable inner body 42, placed, wherein such a laying of the carrier tape 54 similar to attaching a Beilaufbandes the cable with Help a mold is done.
- the information carrier unit 10 can be seen through the cable sheath 62, if the cable sheath 62 is formed in the visible spectral range of a transparent material, so that through the cable sheath 62 through sitting on the cable inner body 42 Einbett emotions 90 of the information carrier unit can be detected, if this embedding body 90 differs in color from the separating layer 52 on which it is arranged, as shown in FIG. If the location of the information carrier units 10 is not easy to find their position, a label 80 with, for example, a labeling gap 82 may additionally be provided.
- the label 80 for example, to be arranged so that in each case by the beginning of the label 80 or the end thereof or by a label element, the position is indicated, at which the information carrier unit 10 in the longitudinal direction 50 of the cable 40 can be found ,
- gusset cords 94 which are stranded with the electrical conductor strands 44, wherein an information carrier unit 10 " is integrated in one of the gusset cords 94.
- the integrated circuit 72 within the gore cord 94 lies the integrated circuit 72, and on both sides of the integrated circuit 72 are thin wires 79 forming the antenna unit 18, which is preferably formed as a dipole antenna in the UHF frequency range, so that on either side of the integrated circuit 72, only a single wire 79 extends which, like the integrated circuit 72, is also embedded in the gore cord 94 as shown in FIG.
- the gusset cord 94 forms in the solution according to the invention the carrier strand in which the information carrier unit 10 "is arranged and through which the information carrier unit 10" into the cable 40 """ can be introduced, namely simply by the gusset cord 94 is stranded with the electrical conductor strands 44 together in a known manner to the cable inner body 42.
- the information carrier unit 10 is operable in the UHF frequency range, since the antenna unit 18 is preferably formed as a dipole.
- the antenna unit 18 is also possible to form the antenna unit 18 as an elongate coil 96 and to embed it in a protective sleeve 98, wherein the information carrier unit 10 '' can be operated in the LF frequency range.
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007017964A DE102007017964A1 (de) | 2007-04-10 | 2007-04-10 | Kabel |
| PCT/EP2008/002604 WO2008122389A1 (de) | 2007-04-10 | 2008-04-02 | Kabel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2135263A1 true EP2135263A1 (de) | 2009-12-23 |
| EP2135263B1 EP2135263B1 (de) | 2018-09-26 |
Family
ID=39689141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08716729.2A Active EP2135263B1 (de) | 2007-04-10 | 2008-04-02 | Kabel |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100166374A1 (de) |
| EP (1) | EP2135263B1 (de) |
| DE (1) | DE102007017964A1 (de) |
| WO (1) | WO2008122389A1 (de) |
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| JP4962152B2 (ja) * | 2007-06-15 | 2012-06-27 | 日立電線株式会社 | 光電気複合伝送アセンブリ |
| DE102007036948A1 (de) * | 2007-07-19 | 2009-01-22 | Lapp Engineering & Co. | Leitungsaufnahmeeinheit |
| US9040825B2 (en) * | 2007-11-13 | 2015-05-26 | Southwire Company, Llc | Conductors and metal-covered cable with coded information and method of applying coded information |
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| US9053841B2 (en) * | 2007-11-13 | 2015-06-09 | Southwire Company, Llc | Traceable and theft deterrent reclaimable product |
| US10102461B2 (en) | 2007-11-13 | 2018-10-16 | Southwire Company, Llc | Traceable and theft deterrent reclaimable product |
| CA3158230A1 (en) * | 2007-11-13 | 2009-05-22 | Southwire Company, Llc | Traceable and theft deterrent reclaimable product |
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| EP2883232A1 (de) * | 2012-08-10 | 2015-06-17 | Southwire Company, LLC | Rückverfolgbares und diebstahlgesichertes zurückforderbares produkt |
| AU2012387604B2 (en) * | 2012-08-17 | 2017-12-14 | Servicios Condumex, S.A. De C.V. | Energy extraction system for illuminating cables, among other uses, which comprises a power cable and an energy extraction device; method for manufacturing and repairing said system |
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- 2008-04-02 EP EP08716729.2A patent/EP2135263B1/de active Active
-
2009
- 2009-10-05 US US12/587,410 patent/US20100166374A1/en not_active Abandoned
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2008122389A1 (de) | 2008-10-16 |
| EP2135263B1 (de) | 2018-09-26 |
| DE102007017964A1 (de) | 2008-10-23 |
| US20100166374A1 (en) | 2010-07-01 |
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