CH714291A1 - Device, system and method for controlling access, payment and location. - Google Patents

Abstract

The invention relates to a personal access control device in a leisure park, for example in a ski area or an amusement park, comprising: a housing (2); a battery (4); a user identifier (80); an active RFID circuit (10) for receiving an RFID signal in a frequency below 1 MHz; a wireless interface (12) for communicating in a frequency band above the 10 MHz and for exchanging payment data for the use of the amusement park with payment terminals (30); a Wi-Fi interface (14) for communicating with Wi-Fi terminals (50) to locate the device in the amusement park. The invention also relates to a method and an access control system making use of such a device.

Description

Description

Technical Field [0001] The present invention relates to the problem of access control, payment and the location of users in leisure parks, in particular ski resorts or amusement parks.

STATE OF THE ART Many ski resorts and amusement parks use RFID elements, for example transponders integrated in a smart card or a watch, for access control and payment of accesses. Users who wish to ski must purchase an RFID item and charge it with a monetary amount to gain access to the facilities. Payment is most often made in advance, by preloading the card with a prepaid amount which is debited as a function of time (for example by the hour or by the day), or by controlling each access to the facilities by means of '' an RFID reader near each portal.

These systems operate reliably and economically. However, conventional RFID readers have a very limited range, typically of the order of a few centimeters or a few meters. They therefore only make it possible to detect users in the immediate vicinity of access control terminals, but not to locate them when they are far from the installations.

Payment systems and access control systems for a leisure park are also known, which employ users' smartphones both for payment and for user access control. These systems most often require user intervention via an application and the smartphone's touch interface; however, handling a smartphone in a ski resort or wearing gloves is inconvenient. As not all users have access to a smartphone, and in any case not to a smartphone capable of running the required application, another access control system must be provided for other users, for example a system based on smart cards. Each access control terminal must therefore be provided with a first interface for communicating with smartphone users, for example a Bluetooth type interface, and with a second interface for reading smart cards.

US 2014 257 889 describes a system for locating mobile devices making it possible to optimize the waiting times in queues as a function of customer flows. It implements wireless detection devices of mobile devices, for example telephones equipped with a Bluetooth or Wi-Fi interface. Again, this system only works with users equipped with such a device; a different system must imperatively be provided for the access control of other users, or when the user's device is unloaded.

US 2005 030 160 describes a multimode tag which can communicate with RFID readers and be located by triangulation by Wi-Fi terminals. This tag is intended to ensure the traceability of objects in an inventory and does not include means of payment, or means of access control.

EP 2 077 473 describes another system for locating by Wi-Fi a mobile device equipped with an active RFID tag. The system is intended for monitoring operators or technicians in factories or industrial environments, and does not include means of payment or means of access control.

Brief Summary of the Invention An object of the present invention is to provide a device, system and method for controlling access, payment and locating users in a leisure park free from the limitations of the solutions known.

According to the invention, these aims are achieved in particular by means of a personal access control device in a leisure park, for example in a ski area or an amusement park, comprising: a housing;

a battery;

a user identifier;

an active RFID circuit intended to communicate in a frequency below 1 MHz;

a wireless interface intended to communicate in a frequency band above 10 MHz and intended to exchange payment data for the use of the leisure park with payment terminals;

a Wi-Fi interface, intended to communicate with Wi-Fi hotspots in order to locate the device in the leisure park.

In one embodiment, the user identifier can be stored in a memory.

In one embodiment, the user identifier can be used for identification both through the active RFID circuit, the wireless interface and the Wi-Fi interface.

In one embodiment, the active RFID circuit can communicate in a frequency band around 125 KHz.

In one embodiment, the wireless interface can communicate in a frequency band around 13.56 MHz.

CH 714 291 A1 [0014] In one embodiment, the wireless interface is intended to communicate via the nfc protocol.

In one embodiment, the device is located by trilateration or triangulation.

The device is preferably arranged to allow communication through said active RFID circuit with access control terminals of various installations in the park in order to verify the presence of the user near these terminals, based on said identifier.

This solution has the particular advantage of allowing access control by means of conventional RFID access terminals. These access points can also be used to read conventional active or passive RFID transponders, for example smart cards or watches with an RFID tag. Thus, the device can be deployed in existing leisure parks equipped with access control terminals operating with conventional wireless smart cards. The deployment of this solution can thus be carried out with a minimum of costs.

This device can also be used as a means of payment, thanks to its wireless interface, for example of the nfc type. To this end, it can, for example, exchange payment data with payment terminals, for example cash dispensing boxes.

It is for example possible to charge through the nfc interface a prepaid amount in the device, and to debit this amount according to the access to the facilities as detected by the access terminals.

This solution also has the advantage of allowing the location of each user in the leisure park, for example on a ski area.

This localization is carried out using Wi-Fi signals emitted by Wi-Fi hotspots, which have wide coverage and are available at low cost.

This location can be transmitted to the users themselves, for example to go to the leisure park, or to find friends, family members, or other visitors.

This location can be transmitted to the operator of the leisure park, for example for statistical counting purposes or to optimize the management of queues.

This location can also be transmitted to third parties, for example restaurants, shops or parking operators associated with the leisure park, in order to optimize user management.

The battery life between two recharges is preferably more than a week.

In order to achieve this objective, the device preferably includes a standby circuit in order to reduce its electrical consumption when it is not in use.

The standby circuit is advantageously linked to the active RFID circuit, in order to wake the device from a standby mode when a signal is received by the RFID circuit.

In one embodiment, the standby circuit comprises a sensor, for example a shock sensor, or an inertial sensor such as an accelerometer or a gyroscope, and is arranged to put the device on standby after a period of immobility and to wake him up after moving.

In one embodiment, this standby circuit includes a clock circuit and is arranged to put the device on standby at certain times of the day, for example at the hours of closure of the leisure park.

In this embodiment, the magnetic field injected by a terminal in a well defined volume will wake up the device.

The magnetic field can be modulated in such a way that unique information is received by the device.

The device can be arranged to transmit by Wi-Fi this information and / or its identity to a server. It is the server that is ultimately able to determine whether the user of the device is authorized to pass.

The communication between the terminal and the device by active RFID technology can be unidirectional. In this case, the active RFID circuit can act as a simple receiver of signals emitted by terminals.

In a preferred embodiment, the location of the devices comprises a step during which at least one parameter associated with each Wi-Fi signal received by a device from at least one Wi-Fi terminal is preferably measured. using at least three Wi-Fi hotspots. This parameter can be, for example, the signal amplitude, the signal arrival time, its phase, the reception angle, etc. The combination of the parameters determined from the signals received from the different terminals allows localization of the device by triangulation or trilateration.

An approximate location can also be performed using a single Wi-Fi hotspot, or two hotspots.

In one embodiment, the parameters of the Wi-Fi signals determined in each device are transmitted to a central server, which is responsible for calculating the location.

The device is electrically autonomous, thanks to an on-board battery.

CH 714 291 A1 The device is preferably intended to be accommodated in the pocket. Its volume is preferably less than that of a pack of cigarettes.

The use of a unique identifier makes it possible to establish a direct relationship between a user's access and the amount to be debited from their device, for example.

The invention also relates to a method for controlling access, payment and positioning of users in a leisure park, in particular a ski area or an amusement park, comprising:

establishment of a communication via RFID between a personal user device and an access control terminal of a park installation in order to wake the device from a standby mode and / or initiate an identity verification of the user; payment of an amount for the use of the ski slopes or the amusement park, using a wireless interface in a frequency band above 10 MHz between said device and a payment terminal;

location of the device using Wi-Fi communication between the device and Wi-Fi hotspots in the leisure park.

The invention also relates to an access control system in a leisure park, for example in a ski area or an amusement park, comprising:

a plurality of devices as described above;

a plurality of access stations provided with an RFID interface for detecting the presence of said devices near these terminals or for waking them up;

at least one wireless payment terminal in a frequency band above 10 MHz in order to exchange payment data with said devices;

a plurality of Wi-Fi hotspots arranged in said park so that in at least one place in the park a device receives a signal from at least one Wi-Fi hotspot, so as to allow the location of the device.

The system is advantageously compatible with wireless smart cards used by users without a device. To this end, the system comprises a plurality of smart cards provided with RFID transponders and arranged to communicate with said access terminals to control the access of users provided with these cards.

The system can in particular be implemented in a leisure park whose facilities are free of gantry. The access terminals are then only intended to count the uses of these facilities by users. Billing may depend on uses.

Brief description of the figures Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:

Fig. 1 illustrates a schematic view of a system according to the invention.

Fig. 2 illustrates a schematic view of a device according to the invention.

Example (s) of embodiment of the invention [0045] FIG. 1 schematically illustrates a system according to the invention. In this example, the system is deployed on a ski area as an example of a leisure park. Other leisure parks, including amusement parks, holiday clubs, outdoor festivals, etc. can implement the system.

The leisure park 1 includes several facilities, here ski lifts 60. The access to each facility is controlled by an access control terminal 40. Access control may involve controlling the opening of a portal giving access to the installation. In a preferred embodiment, at least certain installations can be accessed without going through a portal. Access control then aims to control which user has accessed which installation at which time, and / or to transmit an indication when an unauthorized user is near the access control terminal. In this case, the access control terminal can for example be used to detect and identify the users who are in a determined volume, for example in a queue.

Each access control terminal 40 notably includes an RFID interface (transmitter or transceiver) capable of communicating with RFID transponders in users' devices 1, or in smart cards 3 provided with such a transponder.

The RFID transponders in the devices 1 are preferably active transponders, that is to say that they are powered by the energy supplied by a battery 4 in the device 1. The RFID transponders in the cards chip can be active or passive transponders. The same RFID interface in each access control terminal 40 can read both active and passive transponders.

Reference 41 indicates the perimeter around each access control terminal 40 in which active RFID transponders can be read. This perimeter is typically a few centimeters or a few meters. The detection of the presence of a user in this perimeter makes it possible to determine that he is currently using the installation associated with the access control terminal.

CH 714 291 A1 The access control terminal transmits an RFID signal, for example in a frequency range of 125 KHz, which can be received by the active transponders when they are within the perimeter 41. The signal RFID received is preferably modulated so as to transmit a control terminal identification. The device 1 which receives such a signal when it is in the perimeter 41 reacts by transmitting this terminal identification as well as a user identifier 80 to a server 70 which checks the authorization of the user.

The system further comprises a plurality of Wi-Fi terminals 50 ("hotspots") which each transmit a Wi-Fi signal received by devices 1 in a perimeter 51 around the terminal. The Wi-Fi signal is preferably at 2.4 GHz for maximum range. The terminals 50 are sufficiently close together so that at least certain regions of the leisure park simultaneously receive the signal from at least three or more terminals. Advantageously, the entire perimeter of the leisure park, or the majority of this surface, receives a signal from at least three separate Wi-Fi hotspots, so as to allow localization of the devices 1 by triangulation and / or trilateration. The range of each Wi-Fi 50 hotspot, outdoors, is typically a few hundred meters. A few tens or hundreds of terminals are enough to completely cover a large surface ski area.

In another embodiment, the location is performed by means of a single Wi-Fi terminal, possibly with a measurement of the amplitude of the received signal. This already makes it possible to determine if the device is in the zone covered by the Wi-Fi zone, and to estimate the distance at which it is from this terminal.

The system 1 also includes at least one payment terminal 30 provided with a wireless interface in a frequency band above 10 MHz, for example an interface in a frequency band around 13.56 MHz, for example an interface according to the nfc protocol (“near-field communication”). This interface makes it possible to exchange monetary data with devices 1 in the immediate vicinity. The nfc interface covers an area 31 with a typical diameter of a few centimeters or tens of centimeters around the payment terminal 30. The monetary data transmitted may, for example, make it possible to load a prepaid amount into the device, or to debit an account of debit or a credit account associated with the device depending on the use of the leisure park facilities. In one embodiment, the payment terminal makes it possible to introduce cash or a credit or debit card in order to recharge the device.

Each user 1 of the fleet is provided either with a device 1 according to the invention, or with a conventional RFID circuit, for example a wireless smart card. Having a device 1 or a RFID circuit preloaded with a prepaid amount gives access to the park and the park's facilities. In one embodiment, access to at least certain portions of the leisure park, or to certain installations of this park, requires the opening of a portal by presenting a loaded RFID device or circuit. In another embodiment, the fleet has no gantry and controllers monitor the possession of loaded devices 1, for example by monitoring indicators which signal the presence of devices 1 in an area 41, for example a queue.

The various terminals 40, 50 and 60 of the system communicate via an Ethernet or Wi-Fi interface with the server 70 which manages the users, their location, the payments, and the queues in the park. The server can be made up of one or more physical or virtual machines. It can generate reports for the park manager.

FIG. 2 schematically represents an example of device 1 according to the invention. It can be in the form of a box, for example a box with a volume smaller than that of a packet of cigarettes. The case is intended to be put in the pocket. It is advantageously waterproof. The exterior of the housing can include an optional charging socket, for example a micro-USB or mini-USB or USD type C socket. In order to reduce the cost, the bulk and the electrical consumption, the housing is preferably free of display, except for status LED indicators 22, and of any tactile data input device, except for an on-off button 24. An optional Bluetooth interface can be provided for updating and / or for communicating with a nearby user device, such as a user's smartphone or tablet, used as a data entry and display terminal.

The interior of the housing includes an electronic circuit preferably mounted on a printed circuit not shown. The circuit includes a low consumption microprocessor 6, for example an ARM processor, accessing a memory

8. The memory 8 can include a semi-permanent memory, for example a Flash memory, and a volatile memory of RAM type. A portion of the memory 80 makes it possible to store a unique user identifier, making it possible to distinguish the user who owns the device 1 from all the other users. This identifier is preferably used both for access control initiated via the RFID interface, for locating the user via the Wi-Fi interface, and for payments via the nfc interface.

The processor 6 and the other components of the device 1 are supplied by a battery 4, advantageously a rechargeable battery, for example a Lithium-ion or Lithium-Polymer battery. The autonomy of the battery 4 is preferably greater than one week of normal use.

The device 1 further comprises an active RFID circuit 10 supplied by the battery 4 and controlled by the processor 6, in order to exchange data with an access control terminal 40. The RFID circuit may include means of identification of the device, preferably with the identity stored in the memory location 80, or with another identity. An anti-collision module can be provided in the RFID circuit 10 and / or in the access control terminal 40 in order to manage the problems of data collision between several devices 1 in a reading area 41. In a mode

CH 714 291 A1 as a preferred embodiment, this module is however replaced by a one-way communication from the access control terminal 40 to the device 1, which minimizes the risk of collision.

A cryptographic module can be provided to secure the communication between the RFID circuit and the access control terminal 40.

As mentioned above, the active RFID circuit 10 allows in particular to initiate a user authentication process when he is with his device in the perimeter 41 around an access control terminal 40 ; the detection of a signal from the terminal then initiates the sending of the identity of the access control terminal 40 and the identifier of the device 1 to the server 70 which identifies the user, and verifies or debits his account .

The user identification is used by the server 70 to open an access portal, to control the presence of authorized or unauthorized users in perimeters 41, and / or to bill for this presence. This information can also be used by the server 70 to optimize the use of the fleet, in particular by managing the queues and the distribution of users on the various infrastructures.

The active RFID circuit 10 can also, or alternatively, be used in order to take the device out of a standby mode when it is in or near the leisure park, so that it can then be identified or locate.

Some users may be provided with a passive transponder, for example in smart card format, which makes it possible to signal to the access terminals the presence of a user identified in the associated access zone 41.

The device 1 also includes a wireless interface 12 in a frequency band above 10 MHz, for example 13.56 MHz, for example an interface according to the nfc protocol. This interface is intended to communicate with the payment terminal 30 in order to exchange payment data, for example in order to recharge a monetary amount associated with the device, or to debit it as and when the infrastructures are used.

The device 1 also includes a Wi-Fi interface 14 (for example 2.4 GHz) making it possible to receive a Wi-Fi signal transmitted by the Wi-Fi terminals 50. This communication channel allows on the one hand to exchange data with the server 7 or other websites, for example for updates to the device 1, or for other value-added services. The Wi-Fi interface also includes a circuit, not shown, for measuring, in several given instants, a physical parameter of all the Wi-Fi signals received at this instant. The measured parameter can be for example the amplitude of the Wi-Fi signal, its phase, possibly the reception time (which makes it possible to determine the flight time from terminal 50), etc. This parameter is advantageously transmitted by Wi-Fi to the server 70 (or to a dedicated server) in order to determine by triangulation or trilateration the location of the device 1.

Alternatively, the location could also be performed by the device itself, but this requires on the one hand greater energy consumption on the part of the device, and on the other hand an update in each device 1 of the active Wi-Fi hotspot locations.

This location is preferably carried out at regular intervals, for example every 5 minutes, at the request of the device 1. The location can also be triggered by various events detected in the device 1, for example the start-up of the device 1, its exit from a standby mode, and / or a displacement detected by the inertial sensor 18 or a shock sensor, described below. On-demand localization, triggered by the server 70 or by the user, can also be performed.

In order to reduce the electrical consumption of the device 1 and to increase its autonomy, it advantageously comprises a standby circuit 16 which makes it possible to put in total or partial standby at least certain components of the device 1 when certain standby conditions are met. To this end, the device 1 advantageously includes a sensor 18 already mentioned, for example a shock sensor, or an inertial sensor such as an accelerometer and / or a gyroscope, for detecting the movements of the device. The device 1 can be put on standby after an extended period of immobility, for example after 5 minutes of immobility. It can be awakened by an interruption generated by the sensor 18 in the event of displacement of the latter, or displacement of amplitude above a threshold, or with sufficient acceleration. As indicated, it can also be awakened by the active RFID circuit 10 when the device 1 is in the perimeter 41 of reception of an RFID signal emitted by an access control terminal 40. For this purpose, the active RFID circuit 10 can be activated, at least intermittently, even when the rest of the device is in standby.

The standby circuit can also be put on standby by a clock circuit 20. The standby can for example be automatic at the closing hours of the leisure park. The clock circuit can also put the device 1, or certain components of this device, in intermittent standby even during the periods when it is used. For example, it is possible to put the processor 6 on standby, or at least in reduced consumption mode, then to wake it up with periodic cycle times between 30 and 120 seconds.

It is also possible to put the device on standby on days when it is not used, for example as long as no access near an access control terminal 40 is detected.

A standby and / or wake-up button can also be provided on the housing of the device 1.

The device can integrate security means. In one embodiment, a photo of the user is stored in memory 8, which can be displayed near the access control terminal or by a controller provided with a suitable reader, in order to ensure that a device containing a personal subscription is used by the correct user.

CH 714 291 A1 The use of the device, for example to program it or to load functions, can be protected by a password entered for example in a connected device, for example a smartphone. Certain data stored in the memory, for example electronic keys, can also be encrypted.

During normal use of the device 1, the user moves to a payment terminal 30 in order to load a prepaid amount into his device, or to consult the available balance. This balance can advantageously also be displayed on a device connected to device 1. In one embodiment, recharging via the Internet, for example via the Wi-Fi interface, can also be carried out.

The user then accesses the leisure park, for example the ski area, of which he uses the facilities 60. His device 1 is then put out of standby as soon as an RFID signal is received from one of the control terminals d access 40, or by another event such as a shock, displacement detection, or periodically.

When the user enters the perimeter 41 near an access control terminal 40, he receives via the active RFID interface 10 the identity of this terminal, which he transmits with his identification 80 to the server 70. This server verifies the user's right to access the installation near zone 41, and optionally debits the user's monetary account. Access can also be checked for statistical purposes or to check queues, for example.

When it is outside the perimeter 41 of reading the access control terminals 40, the user is located periodically, or on demand, thanks to the Wi-Fi signals received throughout the fleet of several Wi terminals -Fi 50 distributed in the park. The location information is determined by the server 70 operated by the fleet manager, or by a third party offering this location service.

This location can be made available to the user himself to allow him, for example, to find his way around the park. It is also possible for him, for example, to determine the position of his friends or family members who have given him this authorization. The position of the user can for example be displayed on a map presented on the display 22 of the device, or on a smartphone or other terminal connected via the Internet to the server 70.

This location can also be made available to the operator of the leisure park in order to allow him to manage the movements of users according to the day or the season, and to adapt his offer accordingly. The park operator can also charge for use based on this location, for example based on the distance traveled by a skier on the ski area. This location also allows him to locate users who are moving away from the area, for example for off-piste skiing. In one embodiment, the location displayed for the park operator can be anonymized, for example by replacing the user's identity with an alias.

This location can also be made available to ancillary service providers, for example restaurants, bars, parking lots or other providers on the leisure park. This information allows them, for example, to adopt their offer and / or their rates according to demand or expected demand depending on the location of users. The location displayed for the park operator is preferably anonymized, for example by replacing the user's identity with an alias.

The server 70, or another server managed by the operator of the leisure park or by another entity, can also manage a loyalty program. Loyalty points can for example be distributed according to the monetary sums loaded in the device. In one embodiment, loyalty points can be distributed according to the location or the trajectory traveled by a user. For example, loyalty points can be awarded to a user who has traveled a minimum distance per day, who has borrowed a certain number of installations, and / or visited the installations of external service providers.

The server 70 can also manage a profile of each user, associating with each user more complete data than that stored in his device. This profile can for example include bibliographic data (surname, first name, address, telephone number, e-mail address, payment details, etc.); preferences (preferred means of payment, favorite installations, language, etc.), transaction and travel history, etc.

Claims (23)

claims 1. A personal access control device in a leisure park, for example in a ski area or an amusement park, comprising: a housing (2); a battery (4); a user identifier (80); an active RFID circuit (10) for receiving an RFID signal in a frequency below 1 MHz; a wireless interface (12) intended to communicate in a frequency band above 10 MHz and intended to exchange payment data for the use of the leisure park with payment terminals (30); a Wi-Fi interface (14), intended to communicate with Wi-Fi terminals (50) in order to locate the device in the leisure park. 2. The device of claim 1, arranged to allow reception through said active RFID circuit of said RFID signal emitted by access control terminals (40) of various installations (60) of the park, in order to verify the presence of the user near these terminals, based on said user identifier (80). CH 714 291 A1 3. The device of claim 2, arranged to detect an identity of the access control terminal (40) in said RFID signal. 4. The device of claim 3, arranged to transmit said identity of the access control terminal (40) and said identifier to a server. 5. Device according to one of claims 1 to 4, comprising a standby circuit (16). 6. Device according to claim 5, the standby circuit being linked to said active RFID circuit in order to wake the device from a standby mode when a signal is received by the RFID circuit. 7. Device according to one of claims 5 or 6, the standby circuit being linked to a shock sensor or to an inertial sensor (18) and being arranged to put the device in standby after a period of immobility and to wake him up after a shock or displacement. 8. Device according to one of claims 5 to 7, the standby circuit (16) being linked to a clock circuit (20) and being arranged to put the device in standby at certain times of the day, by example during the closing hours of the leisure park. 9. Device according to one of claims 1 to 8, said Wi-Fi interface (14) comprising a circuit for measuring a parameter of each Wi-Fi signal sent to the device by at least one Wi-Fi terminal, so as to allow the location of the device. 10. Device according to claim 9, said Wi-Fi interface (14) being arranged to transmit said parameters to a server (70) responsible for localization. 11. Device according to one of claims 1 to 10, said identifier being used both to identify the device during communications with the active RFID circuit (10), with the wireless interface (12) and with the Wi interface -Fi. 12. A method of controlling access, payment and positioning of users in a leisure park, in particular a ski area or an amusement park, comprising: establishment of a communication via RFID between a personal user device (1) according to one of claims 1 to 9 and an access control terminal (40) of a park installation in order to exit the device a standby mode and / or to initiate a verification of the user's identity; payment of an amount for the use of the ski slopes or the amusement park, using a wireless interface (12) in a frequency band above 10 MHz between said device and a terminal of payment; location of the device using Wi-Fi communication (14) between the device and Wi-Fi hotspots in the leisure park. 13. The method as claimed in claim 12, comprising the transmission of an RFID signal by an access control terminal (40) of various installations (60) in the park, and the reception of the RFID signal through said active RFID circuit, in order to verify the presence of the user near this access control terminal (40), based on an identifier stored in the device. 14. The method of claim 13, said RFID signal comprising an identity of the access control terminal (40). 15. The method of claim 14, comprising a transmission of said identity and an identifier of the device (1) to a server. 16. Method according to one of claims 12 to 15, comprising a measurement of a parameter of each Wi-Fi signal sent to the device by at least one Wi-Fi terminal (50), so as to allow the location of the device. 17. The method of claim 16, said Wi-Fi interface (14) transmitting said parameters to a server (70) responsible for localization. 18. Method according to one of claims 12 to 17, comprising a standby and an exit from the standby mode after a displacement or a shock. 19. Method according to one of claims 12 to 18, comprising an automatic standby at certain times of the day, for example at the hours of closure of the leisure park. 20. Method according to one of claims 15 to 19, said identifier (80) being used both for identifying the device during communications with the active RFID circuit (10), with the wireless interface (12) and with the Wi-Fi interface. 21. An access control system in a leisure park, for example in a ski area or an amusement park, comprising: a plurality of devices (1) according to one of claims 1 to 11; a plurality of access control terminals (40) provided with an RFID interface for detecting the presence of said devices (1) near these access terminals (40) and or for waking them up; at least one payment terminal (30) provided with a wireless interface in a frequency band above 10 MHz in order to exchange payment data with said devices; at least one Wi-Fi terminal (50) arranged in said park so that in at least one place in the park a device receives a Wi-Fi signal, so as to allow the location of the device. CH 714 291 A1 22. The system as claimed in claim 21, where said Wi-Fi terminals (50) are linked to a server programmed so as to receive a parameter of the Wi-Fi signal (50) measured by the devices, the location being determined by said server. (70). 23. System according to one of claims 21 or 22, comprising a plurality of smart cards (3) provided with passive RFID transponders and arranged to communicate with said access control terminals to control the access of users provided with these smart cards (3).