DE10007028B4 - Transponder system for operating a system - Google Patents

Abstract

Transponder system for a system,
wherein the transponder system comprises at least one transponder,
and wherein material carrier vehicles are movable on tracks,
and at some fixed positions in the system, transponders are mounted for marking the material carrier vehicles or for storing information, such as leaving information on subsequent material carrier vehicles or the like,
and wherein at least one material carrier vehicle has at least one read / write device for writing and / or reading the transponder,
wherein a read / write device is installed in the system at at least one position for the purpose of transmitting programs and / or exchanging data with the material carrier vehicle,
wherein transponders in the installation identify positions for at least one material carrier vehicle whose override triggers a speed change of the material carrier vehicle,
wherein the material carrier vehicle comprises an actuator, wherein the actuator for driving, adjusting or changing other devices, things or objects is usable
each transponder comprising at least a microprocessor and a memory,
where the energy ...

Description

The The invention relates to a transponder system for a plant.

Out the catalog 'RF Identification Circuits' the year 1999 of the company EM-MARIN with the number WBRFID4E Th-10/99 transponders are known. They have an integrated circuit on, which includes a microprocessor and a memory. The integrated Circuit is part of an electronic circuit that connects to a coil is connected via which the entire circuit is powered. It will The energy supplied by a read-writer, in addition to energy Information transfers and from Transponder also receives. The system thus has a unidirectional energy transfer and a bidirectional data transmission on. The read-write device and the transponders are for Operating frequencies from about 100kHz to about 3 GHz interpretable. The Coil is essentially two-dimensional in many transponders educated. Therefore, the transponder with its coil is also in an adhesive tape or paper piece integrated.

For material transport in facilities such as production facilities, warehouses or the like Material carrier vehicles used. They transport the material to firmly prescribed Paths or paths to the given points. Be transponder by way of example on material carrier vehicles or glued on the transported material itself and serve thus as a marking of the material carrier vehicle, its contents or as a carrier for further Information.

adversely is that such a system can not react flexibly, for example, accidents, Congestion, capacity utilization, changes of production orders or similar. Furthermore are many read-write devices to read and write the transponder necessary and must the railway will be installed. This is expensive and also expensive during installation, especially because an installation is difficult accessible Job is difficult. The read-write devices also have a considerable amount of space, the available must stand. This restricts the flexibility when operating the system. In addition, the read-write devices must be and data bus are cabled costly.

From the DE 299 12 726 U1 For example, a transport system is known which comprises transponders installed in the guideway.

From the DE 197 41 033 A1 a transmission of traffic information for the driver of a vehicle using SAW sensors is known.

From the DE 197 09 847 A1 For example, a mobile unit control system and method of operation is known using SAW tags.

Of the The invention is therefore based on the object, a transponder system to train to operate a plant while avoiding the aforementioned Disadvantage. In particular, a cost-effective system is proposed Be that as possible little cabling and with few read-write devices manages and still has a high degree of flexibility.

According to the invention Task in the transponder system according to the specified in claim 1 Characteristics solved.

basics Features of the invention are that the transponder system for a plant comprises at least one transponder, wherein material carrier vehicles be moved on tracks, and where at some positions transponder for labeling for the material carrier vehicles or for storing information such as leaving information to subsequent material carrier vehicles or the like, and wherein at least one material carrier vehicle at least one reader or at least one writing-reading device for writing and / or Reading the transponder has.

Under 'material carrier vehicles' should also cars or container be understood with or without their own drive. Also is below also a piece or to understand material without additional device, such as container or the like, is drivable. For example, one is at least partial metallic material as a secondary part usable in an electric linear induction motor and is thus movable on a train. Such material is in one to interpret such a case in this document as 'material carrier vehicle'. The same applies to others Driving techniques, especially without a wheel, such as magnetic Material with a linear synchronous electric motor or in gas or liquid transportable material or the like.

It is advantageous that the transponder at fixed positions in the system or on the earth slowly moving positions, such as processing machines or the like, are attached and installed. Because the transponders are very small are, the space requirement for these is also very small. In addition, the installation can be done quickly and easily, since transponders are fastened, for example, with an adhesive tape. It is also advantageous in the invention that the material carrier vehicles are moved on tracks, so that the material carrier vehicles move past the positions marked by the transponder and detect the transponder with their read-write devices or even only readers. After detection or contact, so to speak, data or information is interchangeable.

Especially is the information about Detecting the transponder usable. The material carrier vehicle can be dependent trigger actions from this information. Furthermore, as a transponder Also a transponder can be used, one or more times has writable memory. Thus, the material carrier vehicle Store information on the transponder, for example the Time of passage, a speed or information about transported Material or the like. The following material vehicle reads then this deposited information and uses this when further operation or will of this information in further operation affected.

at In an advantageous embodiment, transponders in the Investment positions for at least a material carrier vehicle, being overrun a speed change of the material carrier vehicle triggers. The advantage here is that a system can be used economically optimized, since the transponders are very inexpensive can be produced.

at an advantageous embodiment comprises the material carrier vehicle a drive with programmable unit and / or computer with memory to run a program or process, wherein the actuator and / or drive for Driving the material carrier vehicle and / or for driving, adjusting or changing other objects usable is. The advantage here is that a flow for each material vehicle stored is that even dependent events or, for example, transponders by previously passed by Material carrier vehicles stored information the process can be controlled. This leaves one high flexibility in the operation of the plant and the consideration of different states or emergency conditions the plant too. Likewise, however, is also a material carrier vehicle executable, the means of the actuator or a drive loading or unloading the Material carrier vehicle executable power. About that In addition, an actuator can also be used to set a discrete mechanical Movement, such as switch position or the like, or setting a linear or rotational size, such as length or angle serve. The Material carrier vehicle So it can either be designed with a drive for your own locomotion and / or with a drive to drive or move others Stuff. Also a drive for rotating the material carrier vehicle is used in the context of the invention.

at an advantageous embodiment is in the system at least a position a writing and / or writing device installed to transfer the program and / or data exchange with the material carrier vehicle. The advantage here is that this is a writing or writing-reading device of the material carrier vehicle with the read-writer the Facility can exchange data or information. If the writing or the read / write device of the system Connected to a central controller is also a new one Program or a new process transferable. Thus, even updating the knowledge of the invention is advantageous Material carrier vehicle executable.

at an advantageous embodiment is for decentralized error detection installed in the system at least a first position a reading or writing device for detecting the event of passing through the first position, and that at least a second position a read or write reader installed is for detecting the event of passing through the second position, and that these reading or writing readers at least partially with each other are connected. In particular, in the train or track are consecutive Reading or writing readers connected with each other. The advantage here is that a cost track inspection is reachable without connecting to a central computer or like that. Furthermore is the retraction of another material vehicle in the monitored Track section preventable. The advantage here is the increase in Safety and limiting the maximum extractable energy in the area of the supervised Web section.

at an advantageous embodiment are reading or writing readers with means for acoustic, optical, electrical, magnetic and / or electromagnetic display or message indicating errors connected. The advantage here is that a mistake or even only a state of a web portion can be communicated or displayed.

An essential feature of the underlying method for operating a system is that material carrier vehicles are moved onto tracks, and that transponders are used to identify positions, and that on at least one material carrier vehicle at least one reader or at least one read-write is used for writing and / or reading transponders. The advantage here is that the material vehicles are flexible in use, positions are detectable and dependent on the detection of their behavior or that of the system. Overall, therefore, the system is operable in a complex manner.

at an advantageous embodiment receives the material carrier vehicle At least one item contains a program or expiration of a central control or a device with computer. Advantageous is there that every material carrier vehicle receives a driving order, which is also customizable. If several read / write devices are installed in the system An updating of the driving orders is also advantageously feasible.

at According to an advantageous embodiment, the program or the Expiration information about speed changes and / or directions when driving through turnouts, this information should then be activated when driving through positions was detected. The advantage here is that at points the material carrier vehicle automatic trigger the drive-through direction can and at speed changes the Travel times of webs are optimized.

at an advantageous embodiment is after reading the information or data of at least one transponder by means of a reader or a read-write device changed the speed of the material carrier vehicle. From The advantage here is that the speed can be optimized, in particular driving slowly in bends, fast on straight stretches. In addition, can For some tracks, a speed or speed-time profile activated, which meets the respective requirements, such as driving through a processing or production machine or departing one Temperature-time profile or the like.

at an advantageous embodiment is after reading the information or data of at least one transponder by means of a reader or a read-write device dependent traversing a switch from programming the material carrier vehicle, in particular is passed through right or left or a multiple turnout drive right, left or straight ahead.

From The advantage here is that the material carrier vehicle, the position of the Transponders before the switch learns and corresponding settings for driving through the switch so trigger can do that driving through in the programmed way executable is.

at an advantageous embodiment is a decentralized error detection realized in the plant such that one at a first position installed read or write reader the event of passage this first position to a installed at a second position Read or write reader notifies and this after an adjustable period of time and non-occurrence the event of passing through the second position an error message publishes. The advantage here is that no wiring to a central computer is necessary, but a flexible and cost-effective decentralized Track section surveillance, which notifies or displays an error message in any way.

1

train

2

Material carrier vehicle

3

Read-write device

4

programmable unit

5

transponder

51

transponder before soft

52

transponder in the train

6

fieldbus

31

web direction

32

Material carrier vehicle

33

transversely

Pos. 1

position 1

Pos. 2

position 2

Pos. 3

position 3

Pos. 4

position 4

The The invention will now be explained in more detail with reference to an illustration:

In the 1 a corresponding system is shown schematically.

In the 2 a corresponding device is shown in each case at four positions.

In the 3 an alternative system is shown.

In the 2 are four material carrier vehicles 2 at four positions (Pos. 1, Pos. 2, Pos. 3, Pos. 4) of the web 1 shown. They have a drive with control and regulation and drive to the right. The energy supply is done contactless by high frequency is coupled into a line system, wherein the material carrier vehicle has an inductive pickup, which decouples the energy from the line system contactless and provides the drive available. In another embodiment, the power supply is done by means of sliding contacts.

The material carrier vehicles 2 have a read-write device 3 on that with a programmable unit 4 , which includes a computer and a memory connected. At the positions pos. 1 and pos. 4 are each read-write devices 3 that via fieldbus 6 are connected for data exchange with other field devices connected to the fieldbus and with the read-write devices 3 the material carrier vehicles 2 Exchange data and / or programs. In particular, at the position 1 (item 1) of the programmable unit of the material carrier vehicle, a sequence is recorded which comprises at least the information that the material carrier vehicle, upon detection of the transponder installed at position 2 (item 2), sets the speed to a value specified in the sequence Value is increased and after reaching the transponder installed at position 2 (item 2), the speed is reduced to a further value specified in the sequence. At position 4, in turn, data and programs are exchanged.

In a further exemplary embodiment, at the position 4 (item 4) of the material carrier vehicle, its arrival at position 4 is communicated and in addition the information is transmitted that the material carrier vehicle 2 to pass the switch to position 4 (pos. 4) to the left. In this embodiment, the switch is installed with the reader 4 installed at position 4 (item 4) 3 connected to the data exchange. Thus, the transfer of the information 'switch to Pos. 4 left drive' transmitted to the switch so that the switch is set so that a drive through to the left is executable.

In the 1 is outlined the railway system of a plant. A material carrier vehicle starts from A. At A, the programmable unit of the material carrier vehicle is equipped with the procedure, which includes the information about driving through the necessary from A to B points or multiple points. In addition, information about speeds is included in the process. At the plant of 1 the material carrier vehicle is designed such that it is after detection of the transponder 51 mechanically executes such adjustments before the associated switch, that the switch is automatically traversed in the set and predetermined by the sequence direction.

Another material carrier vehicle is provided with a process comprising the information of driving from A to C. Again, the course for detection of the associated transponder 51 drive through in the automatic manner. When driving through the position of the transponder 52 in the web this is detected by the read-write device and then increases the speed of the material carrier vehicle from its programmable unit. After detection of the other transponder 52 the speed is lowered again to another value.

In further embodiments are also other actions when detecting other transponders executable. For example, a rotational movement, such as turning the transported Materials and / or car at an angle, or a translational Movement, like moving the transported material around one Amount or the like, executed.

In further embodiments is a decentralized fault detection implemented in the system. there At a first position, a read-write device is installed, which is the event passing through this first position to one at a second Location installed read-write device communicates. This is so programmed or connected to a computer that after an adjustable Time lapse the non-occurrence of the event of passing through the second Position issues an error message. This is by radio waves, Infrared waves, radar waves and or optical waves transmit the error message or displayed. Also an electrical, magnetic, mechanical, acoustic display is executable by means of the associated means for display. On this way, a decentralized error detection system is realized, that without central control and necessary and costly Wiring gets by. It becomes a stretch of road in this way the railway monitors. Advantageous is the possibility feasible that the retraction of further material carrier vehicles monitored in these Section is prevented.

In further embodiments such a prevention will be to a subsequent material carrier vehicle of entering the supervised Share the route section. This message is sent via further, with the monitoring write readers connected read-write device, which transmits the information to this subsequent material carrier vehicle. In whose Expiration is for deposited this case an alternative way.

In the 3 is outlined another alternative system. This move material carrier vehicles 32 in the railway direction 31 , Many of the material carrier vehicles do not have their own drive, but are jointly driven, for example, by a single drive vehicle having a material carrier vehicle or by a fixed drive, the frictional, chain drive or the like drives the contiguous, connected or chained material carrier vehicles. The material carrier vehicles have read-write device 3 and a programmable unit 4 on. The transponder 5 will be on of Read-write device of the material carrier vehicle detected and read its data. As programmed, the programmable unit now controls 4 an actor. In the 3 For example, this actuator is a drive which is a belt located on the material carrier vehicle in the transverse direction 33 drives. The program in the programmable unit 4 is at a different position according to the example of 2 from a read-writer 3 transferred to the material carrier vehicle. For example, it may contain the command that is in the transverse direction 33 drivable belt should be driven after the transponder of the 3 was detected and / or his data were read. In this way, for example, bags can be loaded or unloaded at certain positions marked with transponders.

In further embodiments Actuators with linear or rotary axes can also be used. Also electromagnets for putting on or dropping things are can be used as actuators. There are also actuators can be used, the mechanical, optical, hydraulic, pneumatic, electric and / or magnetic Movements and / or changes To run. Also storing, dispensing or exchanging energy and / or Information can be effected by such actuators.

Claims (11)

Transponder system for a system, the Transponder system comprises at least one transponder, and wherein material carrier vehicles are movable on tracks, and being at some fixed positions in the system transponder for identification of the material carrier vehicles or for storing information such as leaving information to subsequent material carrier vehicles or the like, are attached, and at least one Material carrier vehicle at least a read-writer for writing and / or reading the transponder, in which installed in the system at least one position a read-write device is to transfer programs and / or data exchange with the material carrier vehicle, in which Transponder in the plant Positions for at least one material carrier vehicle mark their overrun a speed change of Material carrier vehicle triggers, in which the material carrier vehicle an actuator, wherein the actuator for driving, for setting or to change other devices, things or objects is usable in which each transponder at least a microprocessor and a memory includes, the energy supplied by means of the read-write device becomes. Transponder system according to claim 1, characterized that a writing and / or writing device installed in the system with a central control connected to the exchange of data. Transponder system according to at least one of the preceding Claims, thereby marked that for decentralized error detection in the System installed at least one first position a reading or writing device is for detecting the event of passing through the first position, and that at least a second position a read or write reader installed is for detecting the event of passing through the second position, and that these reading or writing readers, in particular electrical, at least partially interconnected. Transponder system according to claim 3, characterized that in the train or track successive reading or writing readers with each other are connected, in particular electrically. Transponder system according to at least one of claims 1 to 3, characterized in that read or write readers with means for acoustic, optical, electrical, magnetic and / or electromagnetic display or message indicating errors are connected. Transponder system according to at least one of the preceding Claims, characterized in that the material carrier vehicle is designed such that there is at least one item of data, information, a program or a drain from a central controller or device with calculator receives. Transponder system according to at least one of the preceding Claims, characterized in that the program or process information about speed changes and / or Directions when driving through turnouts includes, this information should then be activated when driving through positions was detected. Transponder system according to at least one of the preceding claims, characterized in that the material carrier vehicle is designed such that after reading the information or data at least one transponder by means of a reader or a read-write device, the speed of the material carrier vehicle bar is. Transponder system according to at least one of the preceding Claims, characterized in that the material carrier vehicle and the system executed in such a way is that after reading the information or data at least one Transponders by means of a reader or a writer-dependent on the programming of the material carrier vehicle a switch through is, in particular right or left is durchfahrbar or a Mehrfachweiche right, left or straight is passable. Transponder system according to at least one of the preceding Claims, characterized in that in the system at least one position a program transferable to the material carrier vehicle is and / or data with the material carrier vehicle are interchangeable. Transponder system according to at least one of the preceding Claims, characterized in that a means for decentralized error detection in the plant is realized such that one at a first position installed read or write reader the event of passing through this first position to a reading device installed at a second position. or read-write device notifies and this after an adjustable period of time and non-occurrence the event of passing through the second position an error message publishes.