COMMUNICATION SYSTEM WITH AUTOMATIC CONFIGURATION OF THE COMMUNICATION INTERFACE

Abstract: The present invention provides a communication system comprising a Master unit (1) and at least one Client unit (3), means to automatically establish a wireless bi-directional connection between said Client unit and said Master unit when they are close together; and means to automatically configure a communication interface (5) between said Master unit and said Client unit after connection is established. The invention thus enables systems with different protocols to find and communicate via said configured communication interface (5).

Description: COMMUNICATION SYSTEM WITH AUTOMATIC CONFIGURATION OF THE COMMUNICATION INTERFACE The present invention relates to a communication system permitting a person 5 having a communicator to connect and to communicate with other devices such as retailer point of sale devices, vending machines or service providers. More specifically, the present invention is directed to a communication system for users having mobile wireless communicators such as mobile phones. 0 With present communication systems there are some drawbacks due to the fact that communication is necessarily restricted to users having communicators which are configured to exchange data according to a predetermined communication common protocol. For example, cellular network communication systems allow a 5 certain number of subscribers to communicate with each other when they are inside a predetermine region "covered" by the same network. A first solution to that problem has been provided for by creating "standard" communication system to which most of the mobile phones comply. However, 0 even these "standard" systems, for example the GSM cellular system, are strictly limited to certain types of use mobile communicators such as cellular phones, and do not permit a user to go beyond predetermined regions, or devices. These problems represent a big obstacle for a world-wide "universal" use of 5 mobile communicators, which may be of different types, such as lap tops, personal digital assistants, mobile phones and the like which can not, at present, communicate with other communication devices wherever located and based on whatever communicating protocol. 0 In particular, there is a need for a communication system permitting vending apparatus to be joined to users having mobile communicators of different types without specific configuration procedures having to be implemented beforehand. An aim of the invention is to provide a communication system permitting a mobile communicator of a user, and specifically of a purchaser, to have an "universal" use regardless of the type of communicator, communication protocol and the geographic location of the communication device. Another aim of the invention is to provide a system, particularly a complex vending system, which can be easily upgraded and supplemented with apparatus additional to that originally fitted or intended to be fitted . According to the present invention there is provided a communication system comprising a Master unit and at least one Client unit characterised in that the system further comprises means to automatically establish a wireless bi-directional connection between said Client unit and said Master unit when they are within close proximity to each other and means to automatically configure a communication interface between said Master unit and said Client unit after connection is established. By employing the present invention an interface may be configured in accordance with the protocol of either of the Master unit or the Client unit such that different Client units of different types and using different protocols may be used with a common Master unit, for example a fuel dispenser may interact with different types of mobile communicators, such as mobile phones on different networks or personal digital assistants and the like. Preferably the means to automatically establish a wireless bi-directional connection between said Client unit and said Master unit consists of a radio frequency bi-directional interface provided at the Master unit and to the Client unit. Advantageously, the means to automatically configure a communication interface between the Master unit and Client unit comprises driver software provided at the Master unit and at the Client unit which is respectively transmitted to the Master unit and to the Client unit in order to automatically configure a communication interface between said master and Client units. In this manner the driver circuitry can re-configure the appropriate interface in accordance with information received from the initial wireless connection. Preferably the system further comprises at least one Service Provider unit connected to said Master unit and means to automatically configure a communication interface between said Client unit and said Service Provider unit, said master, client and Service Provider units being able to be connected through a network. This feature of the invention not only enables a Client unit to be configured to the Master unit but also to a remote Service Provider unit. One embodiment of the present invention will now be described by way of example only with reference to the accompanying drawings of which: Figure 1 is a schematic diagram of a communication system according to the invention; and Figure 2 illustrates the general architecture of the system of Figure 1. Referring to Figure 1 a master (MST) unit 1 has a radio frequency RF interface 2 able to automatically establish a wireless bi-directional connection with a corresponding RF interface 4a to 4d of one of a Client units 3a to 3d when the latter are located in the vicinity of the Master unit 1. Each of the interfaces 4a to 4d together with interface 2 and associated software, effectively form a communication interface illustrated schematically as 5. Said RF interfaces may be Bluetooth™ enabled interfaces, and the Master unit 1 is typically a central processor of a vending system such as the controller of a fuel dispensing system. The communicators system further comprises a number of Service Provider units (SPR) 6a and 6c. Each could be a fuel dispenser, drinks dispenser or similar such vending device that does not require an operator, but alternatively could be a point of sale system, such as may be located at a restaurant or store check out. Each service provider unit 6a to 6c is connected to the MST 1 by a RF connection 7a to 7c respectively or by other suitable communication interface, for example by a conventional cable connection. The Master unit MST 1 is a controller unit of a local network, for example a network of vending machines and other Service Providers of a vending system, and the Client unit CLN is a mobile communicator of a user of the system, for example of a purchaser in the vicinity of the vending machine which purchaser is already connected to the MST by the above identified RF interface. The Master 1 , Client 4a to 4c, and Service Provider, 6a to 6c, units are controlled by a microprocessor unit 8 in the Master unit running an operating system with a layer structured architecture and they are each connected through a local network. As illustrated with reference to Figures 2, an operating system of the microprocessor 8 comprises: - a communication infrastructure layer; able to provide the system of the connectivity function and the communication protocols of the network; - a discovery and lookup layer 9 able to discover, register and to make available the system resources; and - a service layer 10 where driver software of the Service Providers including all the features and attributes of the service and the proxy object of the service is loaded. As illustrated with reference to Figure 2, when a client approaches the Master unit 1, the Client unit 3 is automatically connected to the Master unit via respective interfaces 2 and 4 and can request a service. To achieve this the Client unit interface 4a to 4b joins the discovery service of Master unit 1 , transmitting the driver software of the Client unit, including its proxy code, and a service request. Through the discovery software the system resources finds out that a service has been requested and where the corresponding resource is present in the system, it is made available to the client through the lookup software 9. The "lookup" layer of the Master unit 1 registers the availability in the system of the requested service, associates it to all the necessary driver software loaded in the service layer, and sends a copy of the requested service object to the Client unit 3 comprising the proxy codes of the requested services, so that the latter can interact directly with the Service Provider SPR via the downloaded service object. Preferably the system units are connected through a TCP/IP protocol enabled network and the proxy codes include an IP address of the corresponding service or Client unit. In a preferred embodiment of the invention said operating system is a JAVA™ operating system and said architecture is a JINI™ based layer architecture. Advantageously, the system of the invention is able to be supplemented of any type of device or service by simply providing the Master unit with the driver software corresponding to that service or device. At the same time, the Client units 3a to 3d the system can communicate with each other provided that their driver software is loaded into the service layer of a Master unit 1. Furthermore "upgrading" of the system can be remotely controlled by a controller 10 connected with the Master unit 1 , for example via the internet, and able to transmit to the Master unit 1 the required driver software. The present invention has been described with reference to preferred embodiments, however, equivalent modifications can be made within the scope of the appended claims.

Claims: CLAIMS 1. A communication system comprising a Master unit (1) and at least one Client unit (3) characterised in that the system further comprises means to automatically establish a wireless bi-directional connection between said Client unit (3) and said Master unit (1) when they are within close proximity to each other, and means to automatically configure a communication interface (5) between said Master unit (1 ) and said Client unit (3) after connection is established. 2. A system according to claim 1 , wherein said means to automatically establish a wireless bi-directional connection between said Client unit (3) and said Master unit (1) consists of a radio frequency (RF) bi-directional interface (5) provided at said Master unit and at said Client unit. 3. A System according to claim 1 or 2, wherein said means to automatically configure a communication interface (5) between said Master unit (1) and said Client unit (3) comprises driver software provided at the Master unit (1) and at the Client unit and respectively transmitted to the Master unit and to the Client unit in order to automatically configure a communication interface (5) between said Master and Client unit. 4. A System according to claim 3, wherein said driver software comprise discovery and lookup software (9) able to discover, join and make available to each other said Master and Client unit. 5. A System according to any preceding claim further comprising at least one Service Provider unit (6) connected to said Master unit (1) and means to automatically configure a communication interface between said Client unit (3) and said Service Provider unit (6) said Master, Client and Service Provider units being able to be connected through a network. 6. A System according to claim 5 wherein said means to automatically configure a communication interface between said Client unit and said Service Provider unit comprises: driver software of the Client unit provided at the Client unit and transmitted to the Master unit through said communication interfaces (5); driver software of the Service Provider unit (6) provided at the Master unit (1 ); means to associate said driver software of the Client unit and of the Service Provider unit in order to automatically configure a communication interface between said Client unit and said Service Provider unit. 7. A system according to claim 6, wherein said driver software of the Client unit and of the Service Provider unit comprises a proxy code respectively of the Client unit and of the Service Provider unit. 8. A system according to claim 6 or 7, wherein said means to associate said driver software of the Client unit and of the Service Provider unit comprise discovery and lookup software (9) able to discover, join and make available to each other said client and service unit. 9. A system according to any one of claims 6 to 8 wherein said driver software of said Service Provider unit is downloaded by said Master unit from a remotely located controller (10) connected to said network. 10. A system according to claim 9, wherein said controller is connected to said network through the Internet. 11. A system according to any one of claims 5 to 10, wherein the Master unit, Client unit and Service Provider unit are connected through a TCP/IP enabled network. 12. A system according to any preceding claim wherein said Master unit (1) is a control station of a vending system, and said Client unit (3) is a mobile communicator of a purchaser.

Inventors: CARAPELLI GIOVANNI, CARAPELLI, GIOVANNI
Applicants: CARAPELLI GIOVANNI, MARCONI COMM S R L, CARAPELLI, GIOVANNI, MARCONI COMMUNICATIONS S.R.L.
Application year: 2001
Main classification: H04L12
IPC codes: H01Q1