Patent Application
20090114721
This invention relates to a system having at least two groups of service facilities on each of which at least one access control device is provided, according to the preamble of claim 1.
In such a system the application data which have been coded on the data carrier by a data input device e.g. at a ticket office are read out from the data carrier by the read/write device. If the read-out application data show a valid right to access the service facility of e.g. a transport facility, such as a ski lift, the access control device releases access to the service facility. The check of the application data can be effected for example by the read/write device which reads out the application data and controls the access control device, or e.g. in the case of an access with a plurality of access lanes with a PC.
The readout of RFID and similar contactless data carriers requires a read time of 100 ms and more for memory-intensive applications, which is felt to be too long and thus annoying. It has therefore been proposed to network all service facilities of e.g. a winter sports area to a central database to which the ticket office is also connected. The application data are then stored in the database by the input device at the ticket office, together with an identification number, for example the serial number of the chip of the RFID data carrier.
Upon access to a control device of this fully networked system, only the serial number of the chip is read out by the read/write device, and the application data stored in the database which are assigned to said serial number are then retrieved online. This permits the read time to be substantially shortened at the access control device.
However, the ski lifts of a winter sports region are often located far apart. Thus, one group of ski lifts can be located in one valley and another group in a far away valley. It is possible to network the ski lifts of the various valleys to a common database. However, the networking of all ski lifts of all valleys requires considerable effort.
It is therefore the problem of the invention to shorten the read time at the access control device in a simple manner when only one data carrier is used in the case of two or more groups of service facilities that are located far apart.
This is obtained according to the invention by the system characterized in claim 1. That is, according to the invention the data carrier which has an identification number is provided additionally with a transaction counter. The application data and a transaction number are written to the data carrier. At the same time, the identification number, the application data and said transaction number are stored in the database of the group of service facilities which the user with the data carrier goes to. Upon access to a service facility of said group, the identification number and the transaction number from the transaction counter of the data carrier are read out by the read/write device of the access control device of the service facility and in case of a match of the read identification number and transaction number with the identification number and transaction number stored in the database there is effected—instead of the reading and check of the application data from the data carrier—a readout of the application data from the database and a subsequent check of the application data, the access control device releasing access in case of a valid access authorization check.
The check of the application data can be effected for example directly by the read/write device which controls the access control device, by a PC or similar computer which, in particular in the case of an access with a plurality of access lanes each having an access control device with a read/write device, controls a plurality of access control devices, or directly by the server of the database.
The transaction counter and the identification number of the data carrier are thus used jointly as a key for the database of the particular group of service facilities. When the user with the data carrier stays within the area of said group, it is thus sufficient to read the serial number and transaction number from the data carrier with the read/write device at the access control device. This permits the read time to be shortened for example to 25 ms to 50 ms or less.
Upon a change of the application data the transaction number is changed, and the changed application data stored, in the database with which the read/write device is networked which reads out the data carrier, and the changed transaction number stored on the transaction counter of the data carrier, together with the changed application data.
The service facilities can be e.g. transport facilities, such as ski lifts. However, they also include other facilities, for example other sports, entertainment and food-serving facilities and the like.
While the service facilities and their read/write devices of each group are adjacent to each other and networked with a common database, the groups can be located far away from each other without additional effort according to the invention. Thus, one group can involve ski lifts or similar transport facilities in one valley, and the other group ski lifts and the like in a far away valley.
Since the data transmission speed is substantially lower with non-contact-type data carriers than with contact-type data carriers, the invention is intended in particular for contactless data carriers, in particular RFID data carriers. It is suitable primarily for “hands free” data carriers with a data transmission distance of more than 100 mm. The one-to-one identification number of the data carrier is preferably the serial number of the chip of the RFID data carrier.
The access control device can be a revolving gate, a light barrier or another person singling device. The release of access with a revolving gate can be effected by the blocked revolving gate being transferred to the release position or the revolving gate located in the release position remaining open. The invention has proved to be particularly suitable for an access control device according to German patent no. 10 2004 013 965. Here, two antennas are provided one after the other at the access, the access control device being driven in dependence on the reading by the first and second antennas as well as the detection of a person by a people sensor.
With said access control device the time duration for reading the data carrier is reduced to a particularly short period of time, namely the period of time in which the area of the first antenna is passed.
The storing of the application data, the identification number and the transaction number of the transaction counter of the data carrier in the database can be effected in different ways.
If the database does not contain an entry with the identical identification number and the identical transaction number, the application data, the identification number and the transaction number can be read out by the read/write device of an access control device of the particular group and stored on the database with which said read/write device is networked.
It is preferable to provide e.g. at a ticket office or similar point of sale a data input device which is networked with the database of the adjacent group of service facilities. It is thereby possible e.g. upon purchase of the data carriers or of access authorizations to use the data input device at the ticket office to code the application data on the data carrier and store a transaction number on the transaction counter of the data carrier, on the one hand, and simultaneously store the identification number, the application data and the transaction number in the database of said group, on the other hand.
The data input device also can be constituted by a PC or similar terminal which is connected to the database e.g. via the Internet. The identification number can be provided visibly on the data carrier or be read out by the data input device.
When the database with which the read/write device is networked which reads out the data carrier is not connected to a data input device, however, the application data, the identification number and the transaction number which have been read out from the data carrier by the read/write device are stored in the database.
The invention is suitable in particular for data carriers with an access authorization extending over a certain time period, for example for commutation tickets, such as multi-hour, half-day, day, multi-day, weekly, monthly or season tickets. The data carrier can of course for this purpose be configured in a manner other than a card, for example in the form of a wrist watch. It may have a period of validity, e.g. a day, or e.g. two half-days. Said periods of validity then constitute a component of the application data. When the period of validity changes, e.g. the first half day is utilized for the data carrier storing altogether two half days, this changes the application data. The changed application data are stored with a changed transaction number in the database and by the read/write device on the data carrier. That is, the transaction number is changed at each write procedure with a read/write device.
Upon a change from one group of service facilities to another group on the first half day, the identification number, the changed application data and the changed transaction number of the transaction counter are then read out by a read/write device of the other group and stored in the database of said group.
The invention is particularly suitable for so-called flexipasses. Here the access authorization data define a total period of validity and within the total period of validity one or more single periods of validity for use of the service facilities of the groups comprised by the system. The data carrier involved may for example be valid for altogether one week but within this week for example only on five days or seven half days or similarly limited single periods of validity.
According to the invention, the data carrier must thus be read when writing must be done outside the network of one group of service facilities. If the data carrier stays within a group, however, it is sufficient to read the identification number and the transaction number.
The transaction number can be constituted by a memory location on the data carrier which is overwritten with a new transaction number upon a change of the application data. Instead, the transaction counter can be constituted by a counting logic integrated into the data carrier, causing the transaction number to be changed either automatically or by command upon a change of the application data.
The application data comprise e.g. besides the total period of validity and/or single periods of validity all data that the data carrier needs for carrying out the access control.
That is, according to the invention there is applied to each data carrier a transaction counter which is used together with the one-to-one identification number, e.g. the serial number of the data carrier, as a key for the central database of each network of a group of service facilities.
The data carrier is written with the application data for example first at the point of sale and subsequently by the read/write device of an access control device whenever charged, i.e. the transaction number on the transaction counter is changed. The application data plus identification number plus transaction number are stored in the database of the network of the particular group.
The reading by the read/write device of an access control device comprises the reading of the identification number and the transaction number from the data carrier. This is followed by the query in the database of the particular network. If an entry with an identical combination of identification number and transaction number is present in the database, the application data from the database are used for the further transaction. If no entry with an identical combination of identification number and transaction number is present in the database, however, the application data are read out from the data carrier by the read/write device. That is, if the data carrier stays within the network of one group of service facilities it suffices to read the identification number and the transaction number from the data carrier with the read/write device.
Hereinafter the invention will be explained in more detail by way of example with reference to the enclosed drawing. Therein is shown schematically:
According to
Each ski lift 1 to 4 is provided with an access control device 5 to 8 with a turnstile 9 to 12 or similar person singling device which has a read/write device 13 to 16.
The read/write devices 13, 14 of the group A and the read/write devices 15, 16 of the group B are networked with a database 17 or 18 via lines 13a to 16a. The database 17 of the group A is furthermore connected via the line 19a to the data input device 19, e.g. of a ticket office where the data carrier 20 is purchased.
According to
If e.g. a flexipass is involved, i.e. an access authorization that is valid e.g. for five days within a week (seven days), the application data comprise as validity data for example the date of the first day, e.g. “10 January XX”, and of the last day, e.g. “17 January XX”, the total period of validity of the data carrier as well as the days or single periods of validity “5” when the data carrier 20 is valid within the total period of validity. The transaction number of the transaction counter 22 is assigned to the days or single time periods as a reference.
The identification number 21 (“7412”), the transaction number (“1”) and the application data 23 including the periods of validity (valid for 5 days in the time period from 10 January to 17 January XX) are transmitted upon purchase of the data carrier 20 by the data input device 19 at the same time to the database 17 of the skiing area A and stored there.
When the skier with the thus coded data carrier 20 goes for example to the lift 1 to go skiing in the skiing area A on 10 January XX, the read/write device 13 of the access control device 15 reads the identification number 21 (“7412”) and the transaction number (“1”) from the transaction counter 22. By accessing the lift 1 the skier has utilized the first day of the five days on which the data carrier 20 is valid. The data carrier 20 is thus valid for only four further days. In the database 17 an update of the application data is therefore carried out, and the transaction number “2” is assigned to the changed application data. At the same time the changed application data are stored in the data carrier 20 by the read/write device 13, as is the transaction number “2” in the transaction counter 22 of the data carrier 20.
Upon another access to one of the lifts 1, 2 of the skiing area A on the first day, the read/write device 13 or 14 of the access control device 5 or 6 reads out the identification number 21 and the transaction number “2” of the transaction counter 22 from the data carrier 20 and in case of a match of the read identification number 21 and transaction number with the identification number and transaction number stored in the database 17 the application data are read out of the database 17 and the read-out application data are checked as to whether they contain a valid access authorization. If this is the case, the turnstile 9 or 10 is driven so as to release access to the lift 1 or 2. The check of the application data for a valid access authorization can be effected by the read/write device 13 or 14 which also drives the turnstile 9 or 10.
The data transmission between the read/write device 13 and the database 17 is effected online and thus very fast. On the first skiing day the transaction number (“2”) and the identification number 21 (“7412”) thus constitute the key to access to the ski lifts 1, 2 in the skiing area A. It is thus only necessary that the identification number 21 and the transaction number of the transaction counter 22 are read out from the data carrier contactlessly by the read/write device 13, so that the read time is reduced to for example 25 ms to 50 ms.
When the skier goes skiing again for the first time after three days, e.g. on 13 January XX, going e.g. to the lift 3 in the skiing area B, the read/write device 15 of the access control device 7 transmits the identification number 21 and the application data 23 to the database 18 upon access to the lift 3. Since the access authorization data have changed, namely only three more days within the remaining period of validity up to 17 January XX, the transaction number is changed e.g. to “3” in the database 18 and the changed transaction number stored in the transaction counter 22 of the data carrier 20, together with the changed application data 23.
Upon each further access to one of the lifts 3, 4 of the skiing area B on the same day, it is thus only necessary that the identification number 21 and the transaction number on the transaction counter 22 of the data carrier 20 are read by the read/write device 15, 16 of the access control device 7, 8, matched with the identification number and transaction number stored in the database 18, the application data read out of the database 18 and checked for a valid access authorization by the read/write device 15, 16.
If the skier changes from the skiing area B to the skiing area A, e.g. to the lift 2, on the same day, that is, on 13 January XX, the identification number 21, the changed transaction number (“3”) of the transaction counter 22 and the changed application data 23 of the data carrier 20 are read from the data carrier 20 by the read/write device 14 of the access control device 6 and stored in the database 17. Upon each further access to one of the lifts 1, 2 of the skiing area B on the same day, it is then only necessary that the identification number 21 and the transaction number on the transaction counter 22 of the data carrier are read by the read/write device 13, 14 of the access control device 5, 6 and matched with the identification number and transaction number stored in the database 17, the application data read out of the database 17 and checked for a valid access authorization by the read/write device 13 or 14.
That is, only if the skier changes from the skiing area A to the skiing area B or from the skiing area B to the skiing area A is it necessary that the application data 23, including the authorization data 24, of the data carrier 20 are read and stored in the particular database 17, 18, while if the skier stays within the skiing area A, B to which he has changed it is only necessary, upon each further use of the lifts 1, 2 or 3, 4 of said skiing area A, B, that the identification number 21 and the transaction number of the transaction counter 22 are read out by the read/write device 13, 14 or 15, 16 to read out the application data from the database 17, 18.
