The invention relates generally to monitoring systems and, more particularly, to a system for monitoring the status of a mini-bar.
Multi-unit buildings such as hotels, motels, inns, and the like, offer a variety of services and facilities for the convenience of their guests, such as a mini-bar. A mini-bar is a convenient store of goods within each room, usually within a refrigerator, that can be accessed by the occupant at his or her discretion. Typically, the mini-bar is re-stocked after the occupant checks out, and the occupant is billed for the items that he or she consumed. The mini-bar is also often checked on a daily basis, often while the room is occupied, for re-stocking. This can be annoying and inconvenient for the occupant.
Monitoring devices and systems for mini-bars are known. One such device is a door switch that detects an opening of the door of a mini-bar. Door switches only provide information that the mini-bar door has been opened. They fail to provide any indication that an item from the mini-bar has actually been removed. Accordingly, if the switch indicates that the mini-bar has been opened then housekeeping will check the mini-bar for re-stocking. However, as is often the case, no item has been removed from the mini-bar. Another such monitoring system not only indicates when a mini-bar has been accessed but also indicates that consumable items have been removed. Such mini-bars track items by, e.g., pressure sensitive switches or infrared light barriers. These product-sensor type mini-bars carry the disadvantage that they are unforgiving to the user—a removed and returned product is registered as consumed. These product sensors tend to be unreliable as the number of sensors per mini-bar can be very high. One example of a mini-bar monitoring system is commercially available from Bartech Systems Corporation of Millersville, Md. Further, removed and returned items can lead to awkward situations at the front desk during checkout to reconcile the actual consumption.
The above discussed and other drawbacks and deficiencies are overcome or alleviated by an exemplary system and method for viewing mini-bar status.
In one aspect of the invention, a mini-bar includes an imaging device disposed for acquiring an image of an interior of the mini-bar.
In another aspect of the invention, a system for monitoring activity of a mini-bar in a room of a multi-unit building, comprises an imaging device disposed for acquiring an image of an interior of the mini-bar, the imaging device configured to generate image data indicative of the image, and a display device receptive to the image data for displaying the image, the display device configured for viewing the image external to the mini-bar.
In still another aspect of the invention a method for monitoring activity of a mini-bar in a room of a multi-unit building comprises acquiring an image of an interior of the mini-bar, and displaying the image.
The above discussed and other features and advantages of the present invention will be appreciated and understood by those skilled in the art from the following detailed description and drawings.
Referring now to the drawings wherein like elements are numbered alike in the several FIGURES:
Referring to
It is within the scope of the present invention that any number of cameras may be used, including a single camera, and that such camera(s) may be arranged at any desired location(s) and disposition(s) (e.g., positioned on an interior side, back, top, or bottom surface of the mini-bar housing 14). Further, the cameras may employ a wide-angle lens or any other suitable lens to capture the images. What is important is that the camera(s) be positioned to capture one or more images of the items. It is preferred that the cameras be triggered to capture images upon closure of the door 16, as detected by switch 22. This may require a flash or in the case of mini-bars with an interior light, a delay in turning the light off to allow the cameras to capture images. The cameras may be triggered sequentially or simultaneously. The camera being controlled (and powered) by a controller 25, which could be mounted at the exterior back of the mini-bar or any other suitable location. A still-picture camera may be preferred, as such is typically less expensive than a continuous camera (although use of a continuous camera is within the scope of the invention). Further, limiting imaging to when the door is closed will eliminate any concerns regarding privacy, as it may not be desirable to capture images of an occupied room.
Referring to
Further, the camera 24 may be pivotally mounted, in any of the exemplary embodiments, with the position being controlled by a miniature electric motor (continuous or step), with power being provided from controller 25.
Referring now to
Wireless IR communication may utilize, for example, the protocol described in U.S. Pat. No. 5,128,792, which is incorporated herein by reference. Digital iterative gain control such as described in U.S. patent application Ser. No. 10/631,457, entitled Digital Iterative Gain Control, filed Jul. 30, 2003, which is incorporated herein by reference, may also be utilized. Further, the infrared communication protocol may be the IR5 infrared protocol described in the above-referenced applications. Other infrared communication protocols may include IrDA, or the like.
Wireless RF communication may utilize, for example, 802.11b radio frequency protocol, WI-FI, Bluetooth, ZigBee, 802.15.4, or any other suitable protocol.
Wired communication may comprise any conventional wiring, (e.g., twisted-pair not shown). Alternatively, the controller 25 could be connected to electrical or telephone wiring for providing communication over such, as communication configurations and protocols on such wiring are known.
Controller 25 is powered by a power regulator or supply 34 connected to line power, although controller 25 may be directly powered from an appropriate low voltage line (whereby the power regulator 34 could be eliminated). Low voltage DC power could be obtained from a low voltage DC electric bus commonly found in such multi-unit buildings or could be generated by a AC-to-DC converter located within a wall or ceiling of the building. The converter would be powered directly from electrical wiring of the multi-unit building. While a micro controller is described as having integrated elements, it will be appreciated that the memory and interface could be discrete elements, as is well known in the art. Also, the micro controller may alternatively comprise a microprocessor, a programmable logic device (PLD), a programmable logic array (PLA), a programmable logic controller (PLC) or other suitable device, generically referred to herein as a processor, each being well known in the art and the configuration of each being readily apparent to one skilled in the art.
Micro controller 30 of controller 25, upon detection by door switch 22 of opening and closing of the mini-bar door, initiates a picture(s). This may be a single picture or a series of pictures when the camera is mounted for scanning on the aforementioned tracks or multiple cameras are employed. The data for the picture(s) is then transmitted to the central server 62 (
Referring to
Gateway module 38 communicates over the LAN in a suitable protocol (e.g., TCP/IP or UDP/IP, Inncom International, Inc's proprietary P5 Protocol, Wi-Fi, ZigBee, 802.15.4, Bluetooth, etc.) that is compatible with the central floor switch 60 (
Wireless IR communication may utilize, for example, the protocol described in U.S. Pat. No. 5,128,792, which is incorporated herein by reference. Digital iterative gain control such as described in U.S. patent application Ser. No. 10/631,457, entitled Digital Iterative Gain Control, filed Jul. 30, 2003, which is incorporated herein by reference, may also be utilized. Further, the infrared communication protocol may be the IR5 infrared protocol described in the above-referenced applications. Other infrared communication protocols may include IrDA, or the like.
Wireless RF communication may utilize, for example, 802.11b radio frequency protocol, WI-FI, Bluetooth, ZigBee, 802.15.4 or any other suitable protocol.
Wired communication may comprise any conventional wiring, (e.g., twisted-pair not shown). Alternatively, the gateway could be connected to electrical or telephone wiring for providing communication over such, as communication configurations and protocols on such wiring are known.
Typically, the mini-bar is re-stocked after the occupant checks out, and the occupant is billed for the items that he or she consumed. Server 62 (
Known image enhancement/processing techniques may be employed to add a visual-difference picture, highlighting the picture areas where actual changes are recognizable (for ease of picture interpretation). Also, a second set of images can be obtained in the IR domain for enhanced evaluation/tamper checks. For example, temperature changes may indicate that an item has been removed and replaced or that a liquid has been refilled to avoid a charge.
Displaying a sequence of pictures at a front desk terminal may assist the front desk clerk at time of checkout to reconcile consumption disputes. For example, the image at 9:00 a.m. shows a particular item in the mini-bar and an image at 10:00 a.m. shows that the particular item is no longer in the mini-bar, whereby it must have been removed when the mini-bar was opened causing the latter picture to be taken.
In an alternate embodiment, the server 62 (
With RF wireless communications, images can be transmitted and received by a personal digital assistant (PDA) or other portable communication device, which supports RF communication, carried by a staff member. This allows the staff member to visually inspect the mini-bar without entering the room, by viewing images or a report. More specifically, the staff member sends a command from the PDA to the controller 25 to collect image data and/or reporting data (which may be acquired at that time or previously stored). This data is collected and sent to the PDA, where the inquiring staff member views images and/or a report. Images are preferably only acquired when the mini-bar door is closed, in order to protect the privacy of the occupants/guests.
With IR wireless communication a transceiver is used. Referring to
Referring to
Display plate assembly 50 may be hardwired to the controller 25 or the gateway module 38 for communication, as described hereinbefore, for receiving the image data and/or reporting data for display. Display plate assembly 50 may alternatively include a micro controller and a wireless transceiver (as described hereinbefore with respect to the controller 25 and the gateway module 38) for RF wireless communication. This would allow for RF wireless communication between the display plate assembly 50 and the controller 25, directly or through the gateway module 38. The display plate assembly 50 is typically mounted at the wall in close proximity to the door of the room.
The system of the invention may additionally or alternatively include a display device disposed within the room 10 by which an occupant of the room may access images of the interior of the mini-bar provided by the camera 24 and/or data or information relating to the images. The occupant display device may be any device which is suitable for displaying images, text, graphics, etc., such as a CRT monitor, an LED panel, etc. For example, the occupant display device may be a device such as the Guestroom Digital Assistant (GDA-700) commercially available from Inncom International, Inc. Alternatively, the occupant display device may comprise a television disposed in the room. Further alternatively, the occupant display device may comprise a monitor, display panel, or the like disposed on the mini-bar. The occupant display device is disposed communicatively within the system 70 (
It is within the scope of the present invention, that micro controller 30 of controller 25 perform much of the processing described herein as being performed at the server 62. In such an embodiment micro controller 30 has sufficient processing power to accomplish the desired tasks. For example, micro controller 30 may process the image data with a heuristic image interpretation for automated tracking of items in the mini-bar, as described hereinbefore. Further, from this heuristic image interpretation the micro controller would generate a report of items in a mini-bar and/or items removed from the mini-bar. Again, this report can be printed, displayed, and/or archived.
A log of the images could be generated and stored at the central server. This log would be useful for analyzing anomalies or resolving disputes with guests at a later time. Further, the log could be useful to a mini-bar service company or a lodging corporation for data mining purposes and/or consumption interpretation and folio posting (ASP model). The log could be sent directly to a mini-bar service company or a lodging corporation over the Internet, as described herein.
If pictures/images are scheduled to be collected periodically, then such could be suspended when the room is not occupied. The central server has data as to the occupancy/rental status of a room, whereby it would send a command to the controller 25 to suspend collecting images. Controller 25 may be configured to provide an event message in response to some event. An event message may include the opening of a door to a mini-bar or that images have been obtained and are available, for example. Further, in a refrigerated mini-bar the level of cooling or the times the unit is run for cooling could be set, thereby providing energy savings. Such could be substantial in the larger multi-unit buildings.
As depicted in
While the invention has been described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed as the best modes contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Moreover, the use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
This patent application claims priority to a provisional application that was filed on Feb. 5, 2004, Ser. No. 60/542,432, the entire contents of which are incorporated herein by reference.
Number | Date | Country | |
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60542432 | Feb 2004 | US |