Patent Application
20070072548
Apparatus and methods are provided to allow wireless communication with remotely located equipment, including without limitation, using multiple networks and communication paths. More particularly, apparatus and methods are provided to change changing wireless networks without requiring major hardware changes of communication equipment.
Modern, electronic vending machines often contain microprocessor based control systems, sometimes referred to as “vending machine controllers.” Such systems may be used to control, monitor and record detailed information about the state of an associated vending machine including, but not limited to, sales, cash received and paid out, errors, events, temperatures, inventory change, lock and unlock. A vending machine controller (VMC) may also control, monitor and record information from peripheral devices associated with functions such as coin acceptance, change giving, displays, credit cards and wireless transactions. The European Vending Association's Data Transfer Standard (“EVA-DTS”) and the National Automatic Merchandising Association's (NAMA) Multi-Drop Bus/Internal Communications Protocol (MDB/ICP or MDB) are widely used formats for collecting, recording, transmitting and auditing data associated with vending machines.
Advances in electronics are now enabling the use of computer controls and data acquisition systems within each vending machine. Some of the latest vending machines make it possible for vending operators to download data and information associated with sales, inventory, and equipment status on-site onto portable computers or transmit vending machine data and information to a central location such as a network operations center. Many vending machines include vending machine controllers based on the International Multi-drop Bus Interface Standards developed by the National Automatic Merchandising Association (NAMA).
Advances in electronics have also enabled the use of controls and data acquisition systems in other types of remotely located equipment, e.g. service vehicles, snack machines, beverage machines, automatic teller machines (ATMs), postage stamp dispensers, arcade machines, slot machines, laundry machines and car wash equipment, in addition to vending machines. However, there are many known disadvantages to such control and data acquisition systems in remotely located equipment. For example, known systems may require that, in order to retrieve data from the data acquisition system, remotely located equipment (e.g., a service vehicle) must be returned to a central location or one must travel to the geographical location in which the remotely located equipment is located.
Therefore, a need has arisen for systems and methods for providing multiple wireless communication paths to and from remotely located equipment. In accordance with teachings of the present disclosure, apparatus and methods may be presented for providing multiple wireless communications paths to and from remotely located equipment.
In one embodiment of the present disclosure, a system for interfacing a controller with a plurality of wireless networks may comprise a wireless antenna, a wireless interface module, and a plurality of wireless transceivers. The wireless antenna is coupled to a wireless interface module operable to send and receive wireless signals. The wireless interface module may be in communication with the controller and have an interface operable to communicate with a plurality of wireless transceivers. The wireless interface module may be further operable to communicate wireless signals between each wireless transceiver and the antenna. Each of the wireless transceivers may be associated with at least one of the plurality of wireless networks, operable to be remotely coupled to the wireless interface module and operable to send and receive wireless signals associated with one or more of the wireless networks.
In another embodiment of the present disclosure a system for monitoring and controlling access to a service vehicle may comprise a service vehicle, a controller, a first wireless transceiver associated with a first wireless network, a second wireless transceiver associated with a second wireless network and not operable to communicate over the first wireless network, a wireless interface module coupled to the service vehicle controller and capable of being used with the first and second wireless transceivers, and a selected wireless transceiver removably coupled to the wireless interface module, wherein the selected wireless transceiver is selected from the first and second wireless transceivers based on available wireless networks in a geographical location in which the system is to be located.
In yet another embodiment of the present disclosure, a system for controlling and monitoring access to a service vehicle and objects disposed within the service vehicle may comprise an electronic enclosure disposed within the service vehicle, a controller disposed within the electronic enclosure, and a mobile storage container. The electronic enclosure may operably be coupled with the mobile storage container. The mobile storage container may have a plurality of receptacles operable to be releasably engaged with respective inserts. Each insert may have a respective unique electronic identifier. Each receptacle may be operable to communicate a signal to the controller when one of the inserts is engaged with the receptacle and when the one insert is removed from the receptacle. The controller may be operable to identify the respective insert disposed in the receptacle.
In accordance with yet another embodiment of the present disclosure a method for interfacing a controller disposed in a service vehicle with a plurality of wireless networks distributed over a geographic area is provided. A wireless interface module having a wireless transceiver port capable of interfacing with a plurality of wireless transceivers may be integrated with the controller. Each wireless transceiver may be associated with at least one of the plurality of wireless networks. The service vehicle may be deployed to a first geographic location. One of the plurality of wireless networks may be determined as preferred for use at the first geographic location. A wireless transceiver associated with the preferred wireless network may be selected from the plurality of wireless transceivers and removably coupled to the wireless transceiver port.
In accordance with yet another embodiment of the present disclosure, a service vehicle operable to communicate with a plurality of wireless networks may comprise a controller, a wireless interface module, and a wireless transceiver. The controller may be operable to monitor, control and record operation of the service vehicle and to monitor and record information associated with selected functions of the service vehicle and may have a bus interface adapted to communicate such information using the wireless interface module. The wireless interface module may be removably coupled into the controller bus interface and may be in electrical communication with the controller to receive the information. The wireless interface module may further include a wireless transceiver port capable of interfacing with a plurality of wireless transceivers respectively associated with one of the plurality of wireless networks. The wireless transceiver may be removably coupled to the wireless transceiver port and be operable to communicate information with the associated wireless network. The wireless transceiver may be selected from a plurality of wireless transceivers based on each geographic location of the service vehicle and increased reliability of communications with the associated wireless network.
In accordance with yet another embodiment of the present disclosure, a system operable to provide more than one wireless communication path may comprise a service vehicle having at least one controller disposed therein, a first wireless transceiver associated with a first wireless network, a second wireless transceiver associated with a second wireless network and not operable to communicate over the first wireless network, a wireless interface module coupled to the controller and capable of being used with the first and second wireless transceivers, a selected wireless transceiver removably coupled to the wireless interface module, and the selected wireless transceiver selected from the first and second wireless transceivers based on available wireless networks in a geographical location in which the service vehicle is to be located.
In accordance with yet another embodiment of the present disclosure, a method for interfacing a controller with a plurality of wireless networks distributed over a geographic area is provided. A wireless interface module may be installed into a standardized connector of the controller and power and data may be supplied to the wireless interface module from the controller. The wireless interface module may prepare the data for transmission across a plurality of wireless networks by the wireless interface module and the controller may be deployed in a service vehicle to a geographic location. One of the plurality of wireless networks is selected for testing as a preferred wireless network for the geographic location, and a wireless transceiver associated with the selected wireless network is selected from a plurality of wireless transceivers respectively associated with the plurality of wireless networks. The selected wireless transceiver is removably coupled to a standardized port associated with the wireless interface module to test the compatibility of the geographic location and the selected wireless network, and additional wireless transceivers are removably coupled with the wireless interface module to determine which transceiver and associated wireless network establishes the best performance at the geographic location.
In accordance with yet another embodiment of the present disclosure, a system operable to provide more than one wireless communication path may include a wireless interface module, one or more wireless transceivers, and a selected wireless transceiver. The wireless interface module may be configured to be coupled to a controller. The one or more wireless transceivers may be removably coupled to the wireless interface module. Each wireless transceiver may be associated with a respective wireless network. The selected wireless transceiver may be removably coupled to the wireless interface module and may be selected from the one or more wireless transceivers based on available wireless networks in a geographical location in which the service vehicle is to be located.
Technical benefits of the present disclosure may include eliminating or substantially reducing requirements for service personnel to return a service vehicle to a central location for replenishment of inventory, tools or consumable products or for service personnel to travel to the geographic location of remotely located equipment to service such equipment. In large metropolitan areas significant amounts of nonproductive time may be saved by no longer requiring service personnel to return service vehicles to a central location at the end of each daily work shift for maintenance and/or servicing or travel to service other remotely located equipment. In addition, by providing multiple wireless communication paths to and from remotely located equipment, one or more alternative wireless communication paths may be provided in the event that one or more of the other wireless communication paths does not provide adequate quality of service.
All, some or none of these technical advantages may be present in various embodiments of the present disclosure. Other technical advantages will be readily apparent to one skilled in the art from studying the following figures, descriptions and/or claims.
A more complete and thorough understanding of the present embodiments and advantages thereof may be acquired by referring to the following description taken in conjunction with the accompanying drawings, in which like reference numbers indicate like features, and wherein:
a is a schematic drawing showing an isometric view of a panel having a plurality of receptacles and a plurality of inserts releasably engaged with respective receptacles in accordance with teachings of the present disclosure;
b is a schematic drawing in elevation showing a back view of the panel in
a is a schematic drawing showing an electronic controller coupled to a wireless communication module in accordance with the teachings of the present disclosure;
b is a schematic drawing showing a block diagram of a wireless interface module configured to accept a wireless transceiver for interfacing an electronic controller with a wireless network according to one aspect of the present disclosure;
Preferred embodiments of the disclosure and various advantages are best understood by reference to
Various aspects of the present disclosure may be described with respect to remotely located equipment, mobile storage containers, mobile electronic controllers and/or handheld devices. However, various features and teachings of the present disclosure may be satisfactorily used with fixed storage containers having valuable objects disposed therein. Also, various embodiments of the present disclosure may not require the use of a handheld device but may instead utilize a personal computer, general purpose computer, or other suitable device.
The term “remotely located equipment” may be used in this application to refer to any automatic sales machine that allows payment to be exchanged for goods or services including, but not limited to, all types of service vehicles, vending machines, snack machines, beverage machines, automatic teller machines (ATMs), postage stamp dispensers, arcade machines, slot machines, laundry machines and car wash equipment. The term “remotely located equipment” may also be used to describe any type of equipment operated by use of a key or any enclosure, building or other secured space which may be opened using a key.
The term “wire-line transmissions” may be used to refer to all types of electromagnetic communications over wires, cables, or other types of conduits. Examples of such conduits include, but are not limited to, metal wires and cables made of copper or aluminum, fiber-optic lines, and cables constructed of other metals or composite materials satisfactory for carrying electromagnetic signals. Wire-line transmissions may be conducted in accordance with teachings of the present disclosure over electrical power lines, electrical power distribution systems, building electrical wiring, conventional telephone lines, ethernet cabling (10baseT, 100baseT, etc.), coaxial cables, T-1 lines, T-3 lines, ISDN lines, ADSL, etc.
The term “wireless transmissions” may be used to refer to all types of electromagnetic communications which do not require a wire, cable, or other types of conduits. Examples of wireless transmissions which may be used include, but are not limited to, personal area networks (PAN), local area networks (LAN), wide area networks (WAN), narrowband personal communications services (PCS), broadband PCS, circuit switched cellular, cellular digital packet data (CDPD), radio frequencies, such as the 800 MHz, 900 MHz, 1.9 GHz and 2.4 GHz bands, infra-red and laser.
Examples of wireless transmissions for use in local area networks (LAN) include, but are not limited to, radio frequencies, especially the 900 MHZ and 2.4 GHz bands, such as IEEE 802.11 and BLUETOOTH, as well as infrared, and laser. Examples of wireless transmissions for use in wide area networks (WAN) include, but are not limited to, narrowband personal communications services (nPCS), personal communication services (PCS such as CDMA, TMDA, GSM) circuit switched cellular, and cellular digital packet data (CDPD), etc.
The term “receptacle” may be used in this application to describe a socket, a chamber or any other type of cavity having an opening operable to receive an insert therein. Electrical contacts may be provided in the receptacle to communicate with an electronic controller.
The term “insert” may be used in this application to describe a plug, a fob, a pin or any other object which may be releasably engaged with a receptacle. Each insert may include an electronic identifier operable to communicate with an electronic controller when the insert is disposed within a respective receptacle. For some applications each receptacle and associated insert may be operable to communicate real time data with an electronic controller.
The term “electronic identifier” may be used in this application to refer to all types of electronic devices which may be securely engaged with a respective insert to communicate at least a unique identification such as a serial number associated with the respective insert. Examples of an electronic identifier may include, but are not limited to, an addressable switch, an RFID tag, a magnetic strip, or a smart card. One example of an addressable switch includes a one wire switch available from Dallas Semiconductor and sold under the registered trademark iButton®. However, the present disclosure is not limited to addressable switches and/or one wire switches.
The term “electronic controller” may be used in this application to refer to an audit device, a general purpose computer or an electronic processor having wireless transmission and/or wire-line transmission capabilities. The electronic controller may be operable to communicate real time data with a network operations center (NOC), remotely located equipment, other service vehicles and/or handheld devices.
Data collecting, storing and communication system 20 may be satisfactorily used with vending machine 50 and/or other types of remotely located equipment. System 20 may include one or more handheld integration audit devices (handheld devices) 40. Vending machine 50 may include vending machine controller (VMC) 52 operable to control and monitor various electronic components and mechanical components associated with vending machine 50. Vending machine 50 may also include audit device 54 having memory 56 and firmware 58.
Audit device 54 may be operable to obtain DEX data via DEX interface or communication link 60 from vending machine controller 52. Audit device 54 may also be operable to obtain multi-drop bus (MDB) data via MDB interface or communication link 62 from vending machine controller 52. Audit device 54 may also obtain MDB data from various peripherals including, but not limited to, cashless reader 64. Audit device 54 may archive or store the DEX data and MDB data in memory 56.
Audit device 54 of vending machine 50 may be operable to communicate with handheld device 40 and/or electronic controller 94 disposed within electronic enclosure 90. See
Communication link or interface 74 such as shown in
When handheld device 40 and audit device 54 communicate with each other over wire-line link 74 or wireless communication link 76, DEX data and MBD data stored in memory 56 may be transferred on demand to handheld device 40. In addition to DEX data and MDB data, audit device 54 may record and store other transactions or activities associated with vending machine 50. For example audit device 54 may record information concerning transactions such as the frequency, date and time and the identity of each engagement and disengagement of electronic lock 66. In addition, audit device 54 may record operational matters such as compressor failure, vend failures, inventory depletion, correct change events, user selected events as well as other data associated with modern electronic vending machine activities and transactions.
Vending machine 50 may include one or more hardware devices or peripheral devices operable to accept cash, noncash payment tokens and/or wireless payments. Cashless reader 64 may be representative of such hardware devices and peripherals. Cashless reader or cashless media device 64 may be operable to accept noncash payment tokens such as credit cards, RFID (Radio Frequency Identification Devices) or other media representative of noncash payment.
Vending machine 50 may include electronic lock 66 operably coupled with audit device 54. Electronic lock 66 may be commanded to engage or disengage in response to signals from audit device 54. Audit device 54 may operate electronic lock 66 by supplying appropriate power and/or digital control signals thereto. For example, audit device 54 may receive a command from handheld device 40 to initiate a sequence for unlocking electronic lock 66. Some vending machines and other types of remotely located equipment associated with data collecting, storing and communication system 20 may have only a mechanical locking device (not expressly shown) operated by a conventional key.
For some applications an electronic key (not expressly shown) may be used to initiate opening of an electronic lock. For such applications portions of an electronic reader (not expressly shown) may be disposed on exterior portions of vending machine 50. The electronic reader may be operable to respond to an electronic key and send an appropriate signal to audit device 54 to initiate a sequence for unlocking electronic lock 66.
The unlocking sequence may include a request from audit device 54 to electronic lock 66 to obtain a serial number associated with electronic lock 66. Audit device 54 may use a serial number or other information associated with electronic lock 66 to confirm that the electronic key is authorized for use in opening electronic lock 66 and associated vending machine 50. Handheld device 40 may also be used to initiate an unlocking sequence via audit device 54.
Vending machine 50 may include vending hardware 68 and inventory 70. Examples of vending machine hardware 68 may include, but are not limited to, one or more inventory dispensing apparatus, one or more coin acceptance and verification mechanisms, one or more bill acceptance and validation mechanisms or any other hardware device associated with vending machines. Vending machine 50 may also include secure power source 72 operably coupled to audit device 54. For some applications secure power source 72 may be used to provide power to audit device 54 in the event of power failure to vending machine 50 or at other selected time periods.
As shown in
Handheld device 40 may be operable to communicate with audit device 54 and electronic controller 94 (see
A mobile container and electronic controller incorporating teachings of the present disclosure may be installed within various types of service vehicles. For embodiments of the present disclosure such as shown in
For some applications, secure power source 92 may have characteristics and features similar to previously described secure power source 72. Electronic controller 94 may also have characteristics and features similar to previously described audit device 54 and/or electronic controller 336. See
For some applications, door assembly 106 of electronic enclosure 90 may include window 108 covered with clear plastic material. One or more light emitting diodes (LEDs) may be visible through window 108 to allow monitoring the status of secure power source 92 and/or electronic controller 94. The plastic covering for window 106 may be operable to allow wireless transmissions, for example BLUETOOTH, therethrough. A reset button (not expressly shown) may also be available inside electronic enclosure 90 when door assembly has been opened by authorized personnel.
Various wire-line and/or wireless communication links may be established between electronic enclosure 90 and other components. For example, first cable or wire-line interface 102 may be provided to couple secure power source 92 with an electrical power distribution system (not expressly shown) associated with service vehicle 80. Second cable or wire-line interface 104 may be provided between electronic enclosure 90 and storage container 140. Cable 104 may be used to communicate data and other information between components disposed within storage container 140 and electronic controller 94. Cable 104 may also be used to provide electrical power from secure power source 92 to various components disposed within storage container 140.
Various types of commercially available enclosures and containers may be satisfactory used as storage container 140. For some applications storage container 140 may be generally described as a lockable vault or safe. For such applications storage container 140 may include door assembly 142 with various types of locking mechanisms (not expressly shown) and/or sensors (not expressly shown) attached thereto and/or mounted thereon. For some applications door assembly 142 may include mechanical locking mechanisms such as a conventional key and locking cylinder or a combination of tumblers and lock bolts associated with a conventional safe. One or more sensors (not expressly shown) may be attached with storage container 140 to indicate when door assembly 142 has been opened and closed.
For some applications, electronic enclosure 90 and storage container 140 may have similar types of mechanical locking mechanisms (not expressly shown) and/or electronic locking mechanisms (not expressly shown). For other applications, electronic enclosure 90 and storage container 140 may have substantially different locking mechanisms. For example, storage container 140 may have an electronic lock operable to be opened in response to signals sent from handheld device 40 via electronic controller 94. For this same application, electronic enclosure 90 may have a mechanical lock which may be opened only by a mechanical key and/or a combination maintained by personnel located at a service center.
Electronic controller 94 may be operable to record and store a wide variety of transactions and other activities associated with storage container 140, valuable objects disposed therein, electronic enclosure 90 and/or other components associated with service vehicle 80. For some applications, electronic controller 94 may also be operable to communicate with network 24 in the same manner as previously described with respect to communication between audit device 54 and network 24. For example, electronic controller 94 may maintain a log or record of transactions such as the date, time and number of valuable objects removed from and returned to storage container 140. Electronic controller 94 may also be operable to monitor and record possible tampering with the contents of storage container 140 and/or electronic enclosure 90. Electronic controller 94 may also record the date, time and identity of each handheld device 40 which may request disengagement of an electronic lock associated with either storage container 140 or electronic enclosure 90.
For some applications electronic controller 94 may be operable to monitor and record the status of various components associated with service vehicle 80. An antenna or other suitable interface (not expressly shown) may be provided to supply data from a global positioning system (GPS) to electronic controller 94 so that geographic locations may be recorded and/or transmitted to network operations center 24 along with the previously discussed data. As a result, a service center having access to network operations center 24 may be able to more effectively manage service vehicles to provide optimum maintenance and servicing of remotely located equipment and minimize requirements for service vehicles to return to the service center.
In the same or alternative embodiments, electronic controller 94 may be communicatively coupled to wireless communication module 180 operable to send and receive signals via one or more wireless links 96. Handheld device 40 and associated software 44 may provide a user interface operable to indicate the status of electronic controller 94, electronic enclosure 90 and/or storage container 140. Handheld device 40 may also be operable to send signals via electronic controller 94 using wireless link 96 to disengage and engage an electronic lock (not expressly shown) associated with storage container 140. Wireless link 96 may have characteristics similar to previously described wireless link 76.
Wire-line link 98 may be provided between electronic controller 94 and the exterior of electronic enclosure 90. Various types of cables (not expressly shown) may be used to couple handheld device 40 with wire-line link 98. As previously noted with respect to link 74 in
For some applications an RFID reader or other type of electronic reader (not expressly shown) may be attached to link 98. Alternatively, a wireless RFID reader or other wireless electronic readers (not expressly shown) may be used to communicate with electronic controller 94 via wireless link 96 and wireless communication module 180. As a result, electronic controller 94 may be used to record usage of tools and changes in repair part inventory carried in service vehicle 80. Such data may be transferred real time to a service center (not expressly shown) via network 24 or may be downloaded when vehicle 80 returns to a service center after daily, weekly or even longer time periods.
For some applications panel 150 such as shown in
One or more sensors operable to detect possible tampering with storage container 140 and/or valuable objects disposed therein may also be provided. For example, back surface or second surface 152 of panel 150 may include a sensor operable to indicate any attempt to remove panel 50 from interior portions of storage container 140. As a further example, a housing 190 with a sensor (not shown) disposed therein may be securely attached with second surface 152, various types of mechanical fastening techniques (not expressly shown) and/or bonding techniques may be used. For some applications housing 190 may include base 190b and covering 190a. Both base 190b and covering 190a may include a cut out or recessed portion (not shown) having dimensions and configurations compatible with disposing a sensor therein.
For some applications the sensor may be an addressable switch available from various companies. For such applications a signal wire and a ground wire (not expressly shown) may extend from the sensor through a cut out or recessed portion formed in housing 190.
Various electrical connections may be provided on back surface or second surface 152 of panel 150. For embodiments such as shown in
For purposes of describing various features of the present disclosure, respective sets of contacts 154 have been designated as a, b, c, d, e, f, g and h. For some applications electrical wires such as respective signal wire 126 and ground wire 128 extending from end 182 of each socket or receptacle 160a-160e may be engaged with respective sets of contacts 154a-154e. The wires extending from housing 190 may be engaged with contacts 154g. The wires extending from second cable 104 may be engaged with contacts 154h. Signal wires 126 may be used tocommunicate data and other information between electronic controller 94, respective socket 160a-160e and/or associated insert 200.
For some applications receptacles 160 may have similar configurations, dimensions and functions. For such applications all inserts 200 may have similar configurations, dimensions and functions. As a result, each insert 200 may be releasably engaged with any receptacle 160. For other applications, each receptacle and each insert may have unique configurations and/or unique dimensions such that each insert may be releasably engaged with only a specific receptacle (not expressly shown).
For purposes of describing various features of the present disclosure receptacles 160 as shown in
For embodiments such as shown in
Each insert 200a-200f may include electronic identifier 210. For some applications an addressable switch such as a “one-wire” addressable switch may be satisfactorily used as electronic identifier 210. Examples of such electronic identifiers include, but are not limited to, iButtons available from Dallas Semiconductor. Electronic identifier 210 may include a generally hollow enclosure or “can” formed from electrically conductive material such as stainless steel.
An example of one or more service vehicles interfaced through a wireless network is depicted by
As described in greater detail with respect to
Electronic controllers 94 may also communicate directly with each other and with network 24 to act as repeaters in case another electronic controller 94 or user interface 34 cannot directly communicate with a particular electronic controller 94 while another electronic controller 94, which does have an established communication link with network 24, is able to directly communicate.
The network interface of system 10 may be implemented in one of a number of ways. In particular, system 10 is designed to support a network 24 that can be implemented via wireless transmissions. For example, if a wireless narrowband PCS paging network is used to implement the network, messages from one or more electronic controllers 94 may be communicated as digital messages through the pager network and stored in one or more dedicated message mailboxes provided by the wireless network operator. These mailboxes may be securely accessed, for example, through an Internet-based connection.
As shown in
At network operations center 26, a client access point 32 may provide access from a client interface subsystem (CI) across external network 24. In one implementation, client access point 32 may be a web-based interface allowing user access from a client computer across a network such as the Internet. Other implementations may include providing a direct-dial connection between client interface subsystem 34 and client access point 32. Once connected, a user may use user interface 34 to obtain information from database 30 based upon data acquired from service vehicles 80. Further, users may be provided with extended services such as trend information developed by mining and analyzing database 30.
Referring now to
Referring now to
Wireless interface module 300 may have a transceiver port 308 operable to removably couple one or more wireless transceivers 310 to communicate signals to and from wireless interface module 300 transmitted to or received from wireless transceivers 310. Wireless interface module 300 may also include coaxial plugs 312 and 316 each operable to couple an antenna.
Wireless interface module 300 may integrate with electronic controller 94 to obtain power or may include an optional power supply 304 operable to supply power to circuitry coupled to wireless interface module 300. Optional power supply 304 may provide power to wireless transceiver 310 coupled to transceiver port 308, with specific levels of power provided to different transceivers as required. Alternatively, if wireless interface module 300 lacks a power supply, it may pass power from the controller 94 to wireless transceiver 310.
Wireless interface module 300 may be operable to accept data and power from the machine control system 94 and to prepare the data for transmission across a wireless network. Similarly, wireless interface module 300 may accept and process command and control data from a wireless network for transfer to electronic controller 94. For instance, wireless interface module 300 may prepare data for transmission to a wireless transceiver 310 that may communicate with an associated wireless network and may execute tasks, such as fetching status from electronic controller 94, based on command and control data received from the network through wireless transceiver 310. By removably coupling different types of wireless transceivers 310 to wireless interface module 300, electronic controller 94 may be enabled to communicate over different types of networks. For some applications, wireless interface module 300 may have characteristics and features similar to wireless interface module 440. See
Wireless interface module may also include an interface controller 306. Interface controller 306 may be any suitable apparatus or system for providing processing, routing and connectivity among the various components of wireless interface module 300, e.g. a four-port USB controller as in known in the art.
Wireless interface module 300 may also include one or more serial data ports, such as universal serial bus (USB) data ports 320 and 324 for example, operable to couple one or more optional peripheral device(s) 322 and/or one or more additional wireless interface modules 300 in a daisy chain fashion. Peripheral device(s) 322 may include multi-media devices, readers/storage devices, additional wireless interface modules 300, additional wireless transceivers 310, or other devices used in association with wireless interface module 300.
Various different types of wireless networks exist and, as such, wireless transceiver 310 may be configured to communicate with one or more wireless networks. For some applications, wireless transceiver 310 may have characteristics and features similar to wireless transceiver 444. See
In one embodiment of the disclosure, plural wireless interface modules 300 may be coupled to electronic controller 94 in a daisy chain fashion. For example, port 324 may optionally couple additional wireless interface modules 300 to electronic controller 94 in a daisy chain fashion. Each wireless interface module 300 in a daisy chain may also be coupled to a wireless transceiver 310 via its respective transceiver port 308. Using a plurality of wireless interface modules 300 advantageously allows a machine control system to simultaneously communicate with a plurality of wireless networks as it allows electronic controller 94 to communicate with different associated wireless communication networks without requiring removal or replacement of individual wireless transceivers 310. For example, a first wireless transceiver 310 coupled to a first wireless interface module 300 may include a GSM transceiver circuit operable to communicate with a GSM network, a second wireless transceiver 310 coupled to a second wireless interface module 300 may include a PCS transceiver circuit operable to communicate with a PCS network, a third wireless transceiver 310 coupled to a third wireless interface module 300 may include a CDMA transceiver circuit operable to communicate with a CDMA network, and so on. Thus, as the quality of service of wireless networks vary among geographical regions, an embodiment utilizing a plurality of wireless interface modules 300 and a plurality of wireless transceivers 310 coupled thereto advantageously allows electronic controller 94 to communicate over alternative wireless networks in the event that one or more of the wireless networks supported by wireless transceivers 310 do not provide adequate quality of service in a particular geographical area.
In operation, a manufacturer of remotely located equipment, .e.g., a service vehicle or a vending machine, builds the equipment as wireless-ready by incorporating one or more wireless interface modules 300 to communicate with the electronic controller 94. A technician need only attach appropriate wireless transceivers 310 to wireless interface modules 300 to interface the remotely located equipment with the associated wireless networks. The technician simply tests reception at the location, for instance by installing different transceivers or through conventional coverage analysis techniques, to determine the most suitable wireless networks and then installs the associated wireless transceivers 310. Wireless interface modules 300 detect the transceivers and networks that are being used and adapt the low-level communication protocols to handle transmission and reception with the network while maintaining the application level communications protocol fixed.
Referring now to
An electronic controller 436 for use in remotely located equipment is depicted that may include a bus interface, depicted as a slot or connector 438. Electronic controller 436 may be conventional hardware, firmware and software associated with remotely located equipment, e.g., vending machine 50 in
Wireless interface module 440 may be operable to accept data and power from electronic controller 436 and to prepare the data for transmission across a wireless network. Similarly, wireless interface module 440 may accept and process command and control data from a wireless network for transfer to electronic controller 436. For instance, wireless interface module 440 may prepare data for transmission through a data cable 442 to a wireless transceiver 444 that may communicate with an associated wireless network and may execute tasks, such as fetching status from electronic controller 436, based on command and control data received from the network through wireless transceiver 444. By removably coupling different types of wireless transceivers 444 to wireless interface module 440, electronic controller 436 may be enabled to communicate over different types of networks. In some embodiments, wireless interface module 440 may have characteristics and features similar to previously described wireless interface module 300. In addition, in the same or alternative embodiments, wireless transceiver 444 may have characteristics and features similar to previously described wireless transceiver 310.
Wireless interface module 440 may also include a serial data port, e.g., universal serial bus (USB) data port 446, operable to couple one or more peripheral(s) 448 in a daisy chain fashion. Peripheral(s) 448 may include multi-media devices such as a speaker operable to output audio signals received via wireless interface module 440, an E-lock, or a video screen. In the same or alternative embodiments, a BLUETOOTH wireless system may interface with wireless interface module 440 through USB port 446 to provide a personal area network that can be used by vending consumers to interact with the vending machine, such as for performing wireless financial or cash transactions. LED lights associated with wireless interface module 440 may provide visual indications of the operability and current functions of the system.
To communicate with wireless networks, a wireless antenna 450 may be coupled to wireless transceiver 344 to receive and send wireless signals. In the same or alternative embodiments, a wireless antenna 452 may couple to wireless interface module 440 and may communicate with wireless transceiver 444 through a coaxial cable 454. Wireless transceiver 444 may communicate with and receive power from wireless interface module 440 through a data and power cable 442.
In one embodiment of the disclosure, plural wireless transceivers 444 are coupled to wireless interface module 440 via data and power cable 442. For example, if more than one wireless transceivers 444 are coupled to wireless interface module 440, then a data line, such as a USB data line, and additional coaxial cables 454 may be used to couple one or more antennae for communication with a wireless network. Similarly, USB port 446 may optionally couple USB-compatible peripherals, such as one or more multi-media devices, readers/storage devices, wireless transceivers 444 or other devices used in association with wireless interface module 440.
It is understood that, in service truck 80 depicted in
Referring now to
Wireless interface module 440 may have a transceiver port 458 operable to removably couple one or more wireless transceivers 444 to communicate signals to and from wireless interface module 440 transmitted to or received from transceiver 444 as illustrated in
Wireless interface module 440 may integrate with electronic controller 436 to obtain power or may include an optional power supply 474 operable to supply power to circuitry coupled to wireless interface module 440. Optional power supply 474 may provide power to transceiver 444 coupled to transceiver port 458, with specific levels of power provided to different transceivers as required. Alternatively, if wireless interface module 440 lacks a power supply, it may pass power from electronic controller 436 to wireless transceiver.
Serial driver/transceiver lines 476 may communicate information between wireless interface module 440 and slot 438 as needed. Interface 456 may provide a standard for simplified incorporation into vending machine or general purpose computer designs, such as industry standard interfaces that support a MDB multi-drop bus operable to transmit and receive information communicated via optional serial transceiver 478. Other types of standards available for exchanging information between electronic controller 436 wireless interface module 440 may include USB, DEX or industry specific data formats. Transceiver port 458 may also include serial transmit and receive lines including a serial ground and power supply lines operable to provide power to a wireless transceiver 444 coupled to wireless interface module 440.
Referring now to
A coaxial cable receptacle 484 may be provided for coupling an antenna to wireless receiver 444. A wireless transceiver circuit 482 may be coupled to a serial driver 486 and generates and receives signals for communicating information with a wireless network, such as a GSM network, an analog network or a two-way paging network. In one embodiment, a power supply 488 may also be included for providing power to wireless transceiver circuit 482. Wireless transceiver 444 is preferably a printed circuit board which may be removably coupled to an interface module with conventional mounting hardware. Wireless transceiver 444 may be assembled inside a housing for simplified coupling to a system and may be configured to communicate with one or more predetermined wireless networks.
Various different types of wireless networks exist and, as such, wireless transceiver 444 may be configured to communicate with one or more wireless networks. Wireless transceiver 444 advantageously allows a control system to communicate with one or more wireless networks by being a removable wireless transceiver that may be replaced with alternative wireless transceivers operable to communicate with different associated wireless communication networks. For example, a first wireless transceiver may include a GSM transceiver circuit operable to communicate with a GSM network. To convert an item of remotely located equipment to communicate with an analog network, the GSM wireless transceiver is removed and replaced with an analog wireless transceiver configured to communicate via an analog wireless communication network. Wireless communication of information may be provided in one or more ways. Some examples of wireless communication networks and protocols operable to be used with the present disclosure may include, but are not limited to, CDMA, GSM, TDMA, PCS, GPRS, CDPD, AMPS, REFLEX and UMTS.
In operation, a manufacturer of remotely located equipment builds the equipment as wireless-ready by incorporating wireless interface module 440 to communicate with electronic control system 436. The equipment is then shipped to its operational location and provided power. A technician need only attach an appropriate wireless transceiver 444 to wireless interface module 440 to interface the vending machine with the associated wireless network. The technician simply tests reception at the location, for instance by installing different transceivers or through conventional coverage analysis techniques, to determine the most suitable wireless network and then installs the associated wireless transceiver 444. Advantageously, vending machines that are installed in network “dead zones” are simply equipped to operate with a communication system or network that has acceptable signal strength and desired data transfer ability and cost structures. Further, if the vending machine is moved at a future date, a suitable wireless transceiver 444 may be installed to convert the vending machine to a different network as needed with minimal cost, time and complexity. Wireless interface module 440 may detect the transceiver and network that is being used and adapts the low level communication protocols to handle transmission and reception with the network while maintaining the application level communications protocol fixed.
Although the present disclosure and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made thereto without departing from the spirit and scope of the disclosure as defined by the following claims.
This application is a continuation-in-part of U.S. patent application Ser. No. 11/279,174 entitled “Method and System for Interfacing a Machine Controller and a Wireless Network” filed Apr. 10, 2006, (attorney docket no. 064814.0230), which is a continuation application of U.S. patent application Ser. No. 09/695,647 entitled “Method and System for Interfacing a Machine Controller and Wireless Network” filed Jun. 29, 2001, now U.S. Pat. No. ______ (attorney docket no. 064814.0193.) This application is related to copending Patent Application entitled “Apparatus And Method For Controlling Access To Remotely Located Equipment”, application Ser. No. ______, filed ______ claiming priority to U.S. Provisional Patent Application Ser. No. 60/729,106 Filed Oct. 22, 2005 (064814.0222), and copending Patent Application entitled “Apparatus And Method For Attaching An Electronic Module To A Lock Assembly ” application Ser. No. ______, filed ______ claiming priority to U.S. Provisional Patent Application Ser. No. 60/772,700 filed Feb. 13, 2006 (064814.0225).
| Number | Date | Country | |
|---|---|---|---|
| Parent | 09895647 | Jun 2001 | US |
| Child | 11279174 | Apr 2006 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 11279174 | Apr 2006 | US |
| Child | 11539331 | Oct 2006 | US |
