巴西专利BR112015011514B1 Cabinet system and method for monitoring items having an RFID tag

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专利摘要:
CABINET SYSTEM METHOD FOR MONITORING ITEMS. An RFID cabinet system for tracking items having an RFID tag is provided for tracking items having an open interior where items are stored and at least one door provides access to items. The static RFID system is provided for reading and identifying data embedded in the RFID tag located on at least some of the objects placed inside the cabinet. The static RFID system is configured to monitor substantially all items located inside the cabinet when the door is closed. Transaction RFID system is provided for reading one of the RFID tags upon removal or return of the associated cabinet item. Transaction RFID system is operable when the door is open. The computer system is configured to sense the opening and closing of the door. The computer system is configured to receive input that identifies the user, and the computer system is configured to periodically record data read from RFID tags by the static RFID system and a transactional RFID system.
公开号:BR112015011514B1
申请号:R112015011514-4
申请日:2013-11-19
公开日:2022-01-25
发明作者:John D'Ambrosio；Onne Ganel；Nat Moody；Gerard Moreno
申请人:Omnicell, Inc；
IPC主号:

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CROSS REFERENCES FOR RELATED ORDERS
[001] This application claims the benefit of US Provisional Patent Application No. 61/727,956, filed November 19, 2012 entitled "STORAGE CABINET WITH MULTIPLE RFID READERS", which is incorporated herein by reference, as if set forth in full in this document, for all purposes. FUNDAMENTALS OF THE INVENTION
[002] In the healthcare industry, the availability of supply items, including medications, is critical. Also important is the ability to keep an accurate account of not only items used, but also their location. Real-time location and usage tracking proved to be a difficult and challenging task.
[003] In addition, there are closed cabinet systems that prevent removal of items without inputting the necessary data to perform the above tracking and prevent diversion or theft. Such a system is particularly applicable to expensive items that are used in an operating room (OR) or a catheterization laboratory. However, closed cabinet systems are also applicable to high volume diversion of low cost items that are useful outside the healthcare facility, such as batteries, bandages, shampoos and pens etc., where the user may deem the item too small. to be considered “theft”.
[004] In developing such systems, the challenge is to balance convenience and speed of access along with the input of data necessary to identify the user, the product, and the account or patient number. Systems that dispense an individual product in the same way as a candy machine, while desirable for convenience and safety, are typically very expensive, require special packaging, and are not flexible in terms of the various sizes and configurations of product that need to be supplied in a hospital. They are also not very space efficient as long as the items are spaced and housed individually.
[005] The use of RFID tags on products presents an opportunity to track individual products without the need for expensive dispensing systems. This is particularly true for expensive product, where it is important to incur additional expense of applying RFID tags. BRIEF SUMMARY OF THE INVENTION
[006] In one embodiment, a radio frequency identification (RFID) cabinet system is provided to monitor items having an RFID tag. The system includes a cabinet having an open interior where items are stored. The system also includes at least one door that gives access to items. At least one first RFID system is provided for reading and identifying data embedded in an RFID tag located on at least some of the items placed inside the cabinet. The first RFID system is configured to monitor substantially all items located inside the RFID cabinet when the door is closed. At least a second RFID system is provided for reading one or more of the RFID tags upon removal of the associated item from the RFID cabinet. The second RFID system can be operated when the door is opened. For example, the user can hold an item in the cabinet and remove it through the second RFID system, in essence pulling the item through a "tunnel reader" to record the item's removal. A computer system is configured to sense the opening and closing of the door. The computer system is also configured to receive input that identifies a user, and the computer system is configured to periodically record data read from the RFID tags by the first RFID system and the second RFID system.
[007] In one aspect, embodiments of the present invention provide a cabinet system for tracking items having an RFID tag. The system may include a cabinet having an interior where items are stored and at least one door that gives access to the items. The system also includes a static RFID system to read and identify data embedded in RFID tags located on at least some of the items placed inside the cabinet. The static RFID system is configured to scan substantially all items located inside the cabinet when at least one door is closed. The system also provides a transaction RFID system to read the data on one of the RFID tags after removing the associated item from the RFID cabinet. Transaction RFID system is operable when the door is opened. The system further includes a computer system that is configured to detect the opening and closing of at least one door. The computer system can be configured to receive input that identifies a user. The computer system is configured to periodically record the data read from the RFID tags by the static RFID system and the transaction RFID system.
[008] In some embodiments, the cabinet additionally includes a plurality of doors and the interior has a plurality of storage areas. Each of the plurality of doors controls access to a corresponding one of a plurality of storage areas. In other embodiments, each of the plurality of storage areas includes a different level of access. The transaction RFID system can be configured to read data from one of the RFID tags for a detection time that is less than about 2 seconds. The computer system can be configured to store and correlate expiration date information with items in the cabinet and to provide an indication of an approaching or past expiration date for each of the items. In some embodiments, the input includes one or more of a biometric identifier, a username, a password, and a signal from a wireless device assigned to the user. In other embodiments, the system may additionally include an external item reader. The external item reader may include at least one of an RFID scanner and a barcode reader.
[009] In another aspect, the invention provides a method of tracking items having an RFID tag. The method may include storing a plurality of items within an interior of an enclosure that defines a controlled access area. Access to the interior can be gained through one or more doors and at least some of the items are attached to an RFID tag having electronically readable identification data. The method may also include using one or more static RFID scanners, while the door is closed, to read data on substantially all RFID tags located within the controlled access area to monitor a warehouse of substantially all items. The method additionally includes storing the deposit in a database and authenticating a user who is requesting access to the controlled access area. The method may include receiving an objective introduced for an item to be placed in, or removed from, the controlled access area. The method may also include scanning an item's RFID tag while the door is open, using one or more transaction RFID scanners as the user removes the item or places the item into the controlled access area. The method may also include recording the removal or placement of the item in the database.
[0010] In some embodiments, authentication of a user may include scanning one or more entries selected from a biometric identifier, a username, a password, and a signal from a wireless device assigned to the user. . Using one or more static RFID scanners may include periodically scanning substantially all items at a scheduled interval. In some embodiments, scanning an RFID tag is completed in less than about 2 seconds. In some embodiments, storing and correlating expiration date information with items and providing an indication of approaching or past expiration dates for the items. The method may additionally include activating one or more transaction RFID scanners when one or more ports are open and deactivating one or more transaction RFID scanners when one or more ports are closed. The method may also include activating one or more static RFID scanners when the one or more doors are closed and deactivating one or more static RFID scanners when one or more doors are open. The method may include determining if a second item is needed for the objective and determining if the user has a new objective for a new item stored within the controlled access area. Embodiments of the invention provide that the method includes reading information from an item that is located outside the controlled access area using an external scanner.
[0011] In another aspect, the present invention provides a method of tracking items having an RFID tag. The method includes using one or more static RFID scanners to read and identify data embedded in an RFID tag located on at least some items placed within a controlled access area to monitor a warehouse of substantially all items on which a or more doors controlling access to the controlled access area are closed. The method may also include storing the warehouse in a database and authenticating a user to a warehouse management system. The method may include unlocking one or more doors to provide user access to items. The method may additionally include scanning an RFID tag of the item using one or more transaction RFID scanners when the user removes the item from the controlled access area. The method may include locking one or more doors to prevent the user from accessing the items and recording the item's removal in the database.
[0012] In some embodiments, the method may also include receiving a target entered for an item within an access-controlled area. Embodiments of the invention provide that the use of one or more static RFID scanners may include periodically scanning substantially all items at a scheduled interval. In some embodiments, the method also includes activating one or more transaction RFID scanners when one or more ports are open and deactivating one or more transaction RFID scanners when one or more ports are closed. The method may also include activating one or more static RFID scanners when one or more doors are closed and deactivating one or more static RFID scanners when one or more doors are open. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] A further understanding of the nature and advantages of various embodiments can be realized by referring to the following figures. In the attached figures, components or similar features may have the same reference label. Furthermore, multiple components of the same type can be distinguished by following the reference label by a dash and a second label that distinguishes between similar components. If only the first reference label is used in the specification, the description is applicable to any of the similar components having the same first reference label, regardless of the second reference label.
[0014] Fig. 1 illustrates an RFID cabinet warehouse management system in accordance with embodiments of the invention.
[0015] Fig. 2 is a flowchart of a method of using an RFID cabinet warehouse management system in accordance with embodiments of the invention. DETAILED DESCRIPTION OF THE INVENTION
[0016] Various exemplary embodiments of the invention are described herein. While certain features are described for ease of discussion in connection with certain illustrated embodiments, those skilled in the art will appreciate, based on the description given herein, that a variety of features of the invention can be combined in accordance with many embodiments. different from the invention. The embodiments illustrated below, therefore, are provided by way of example only and should not be considered as limiting the scope of the invention, which is defined only by the appended claims.
[0017] Embodiments of the invention refer to ways to manage the workflow of items that are associated with RFID tags. This is accomplished using multiple RFID readers as described herein.
[0018] The invention takes advantage of RFID technology that is employed at point of use locations such as offices, carts, or locations in healthcare facilities, although the invention is not limited to healthcare facilities alone. RFID technology is used to provide automated warehouse management capabilities through periodic scans of items within a cabinet or other enclosed area that are monitored by an RFID reader and antennas. In addition, RFID technology is used to separately scan items as they are removed from the RFID cabinet or other monitored location.
[0019] A challenge experienced in configuring the RFID technology used in the present invention is that, when scanning all items within a storage location, a delay that annoys the user, such as, for example, about 5-30 seconds or more may occur. As such, a significant amount of time may pass before a determination can be made as to any items lost or removed. Ways to avoid this delay are inconvenient. Examples of such inconvenient ways to avoid this delay include swinging the item in front of an external RFID or barcode scanner or manually attaching the item to the patient's profile.
[0020] Accordingly, embodiments of the present invention provide the ability to both scan items within the cabinet or storage location and determine when items have been removed in a minimal amount of time, generally less than 2 seconds. The system is also fully automated for end users, eliminating the need for the end user to swing an item in front of a scanner. This is particularly advantageous when a caregiver is removing items for multiple patients. In the process of removing (or returning) items, the caregiver may enter incoming nurse identification information and patient identification information within the cabinet. After removing items from a patient, the caregiver can enter incoming patient identification information for another patient within the cabinet and immediately begin removing items for the second patient, without waiting for a scanning process to complete, for example. , another 5-30 seconds.
[0021] In one embodiment, this is accomplished using an RFID cabinet configuration having multiple RFID readers integrated into the cabinet. A reader (or set of readers) and its connected antennas is dedicated for warehouse management purposes. For example, the antenna for this reader(s) is specifically configured to read all areas of the cabinet with a high degree of accuracy. In this way, all items can be scanned periodically at the same time. For example, these reader(s) can be configured to perform a full cabinet scan at scheduled intervals. In one aspect, this reader(s) can be triggered to perform a full cabinet scan each time the cabinet door is closed. However, it will be appreciated that scans are not limited to taking place only after the door is closed. For example, scans can take place during periods of non-use of the cabinet so that the user does not have to wait for a full scan after closing the door before removing additional items. The reader(s) can also be configured to be disabled and all active scans to be paused or terminated when the cabinet is open. In this way, a scan of the total warehouse will only take place when the door is closed and the system is not being used (and at periodic intervals).
[0022] A second RFID reader (or readers) and their connected antennas can be dedicated to capturing item transaction information, such as, for example, item removal or replenishment. For example, the antenna for these reader(s) can be specifically configured to read moving tags as they are removed or returned to the cabinet or storage location. In one aspect, the second reader is enabled only when the cabinet doors are open. The second reader is then disabled when the cabinet door(s) are closed. This allows for items to be scanned as they are being removed or replaced (and without full scanning of other items within the cabinet or storage location). This provides near real-time data to the cabinet computer system (or other associated computer system, such as a back-end computer system operating over a network) which maintains a warehouse and item location database. . Additionally, a display screen in the cabinet could display transactions to the end user as the item is being removed or returned. For example, the display screen in the cabinet might recite that: “A syringe is being removed.” Another feature of the second RFID reader is that it can be configured to sense the direction of movement of an item. In this way, the RFID reader can detect whether an item is being removed or returned.
[0023] As previously described, RFID systems can be used in connection with cabinets, carts, or storage locations. As an example, the cabinet may have one locking door, or multiple individually controlled locking doors. As another example, the invention may provide an environment (or multiple environments) with an electronically controlled lock. The cabinet, car, or room can contain multiple quantities of multiple items.
[0024] RFID systems including readers (or multiple readers) are placed inside the cabinet. One of the RFID readers provides continuous monitoring of items inside the cabinet, for example, identifying the data embedded in the tag of each product. This RFID reader is capable of repeatedly scanning all products in a short period of time. A separate reader is responsible for determining when an item has been removed. Since the reading time period for reading the tag to be removed is short, the invention provides early warnings to the user leaving the vicinity of the cabinet and the control computer.
[0025] The data associated with the RFID tag can take many forms. In one example, the invention uses a fixed identification number (ID), which is unique to the universe of tags used at all times. At an appropriate point in time, in the cabinet or a separate work station or system in the central supply, this unique number is read from a database. Other product data are also entered into the database for later retrieval. This data may include the item type ID, the item's unique product number (UPN), expiration date, serial number, manufacturer, or other parameters.
[0026] In another example, RFID tags are WORM tags (written once, read many). In the case of a WORM tag, some or all of the data can be written once into the tag's readable memory and thus can be read directly from the RFID tag. If the central database is not available, the product can still be identified. Also, if access to the central server is unavailable, any user alerts presented at the time of removal can be done by the local computer and cabinet system.
[0027] In yet another example, the RFID tag uses a writable tag. For a writable label, the information can be added to the product by the user. For example, the writable tag may contain user-selected information, such as patient ID, user ID, removal date and time, and the like. In all cases, the data formats associated with the tags must be compatible with the software systems so that accurate reporting at the level of detail can be automated.
[0028] Types of RFID cabinets and readers that may be used include those described in US Patent No. 7,348,884, the full description of which is incorporated herein by reference. The details of how to build a cabinet that allows scanning of all items stored inside the cabinet are described here.
[0029] In order to scan items as they are removed or returned, the computer system can detect when the door is opened. Upon opening the door, any scanning of all items by a first static RFID reader (or readers) is stopped or prevented. A second transaction reader (or readers) is then activated and used to scan an item or items as they are removed or returned. This reduces the time for removing or replacing a record as only the item being removed or replaced is being scanned. The computer system can then update the database containing the item warehouse, adding or subtracting the item or items removed as detected by the second RFID reader. When the door closes, the first RFID reader can then perform its normal scan for all items to confirm the accuracy of the database.
[0030] Fig. 1 illustrates an example of an RFID warehouse management system embedded in a cabinet 100 in accordance with the present invention. Although shown here implemented in cabinet 100, the RFID Warehouse Management System as described here can be integrated into storage carts, other hospital locations, and any other controlled access areas. Examples of other types of carts and cabinets that can be modified to include the features described are described in the following US patent and patent applications, the contents of which are incorporated herein by reference: US Patent No. 6,272,394, issued in August 7, 2001 to Lipps, US Patent No. 6,385,505, issued May 7, 2002, to Lipps, US Patent No. 6,760,643, issued July 6, 2004, to Lipps, US Patent No. 5,805,455 issued September 8, 1998 to Lipps, US Patent No. 6,609,047 issued August 19, 2003 to Lipps, US Patent No. 5,805,456 issued September 8, 1998 to Lipps Higham et al., US Patent No. 5,745,366, issued April 28, 1998 to Higham et al., a US Patent No. 5,905,653, issued May 18, 1999 to Higham et al., US Patent No. 5,927,540, issued July 27, 1999 to Godlewski, US Patent No. 6,039,467, issued March 21, 2000 to Holmes, US Patent No. 6,640,159 , issued October 28, 2003 to Holmes et al., US Patent No. 6,151,536, issued November 21, 2000, to Arnold et al., US Patent No. 5,377,864, issued January 3, 2000. 1995 to Blechl et al., US Patent No. 5,190,185, issued March 2, 1993 to Blechl, US Patent No. 6,975,922, issued December 13, 2005 to Duncan et al., US Patent No. 7,571,024, issued August 4, 2009 to Duncan et al., US Patent No. 7,835,819, issued November 16, 2010 to Duncan et al., US Patent No. 6,011,999, issued November 4, 2010 to Duncan et al. January 2000 to Holmes, US Patent No. 7,348,884, issued March 25, 2008 to Higham, US Patent No. 7,675,421, issued March 9, 2010 to Higham, US Patent No. 6,170,929, Issued January 9, 2001, to Wilson et al., US Patent Application Publication No. 2008/0319579 to Vahlberg et al., published December 25, 2008, and US Patent Application Publication No. 2010/0042437 by Levy et al., published on February 18, 2010.
[0031] Cabinet 100 includes a housing frame with locking doors 102. Cabinet 100 and/or doors 102 may be made of a transparent material to allow a user to view items stored within cabinet 100. In addition, the cabinet 100 and/or ports 102 may include a mesh (of metal) or other material to prevent radio frequency from an RFID transmitter from propagating out of the cabinet 100. Techniques for shielding RF signals are described in U.S. Pat. At the. 7,348,884, the entire contents are incorporated herein by reference. Doors 102 may provide access to one or more storage areas 104. These storage areas 104 may be separated by dividers, shelves, drawers, boxes and the like. Cabinet 100 may further include one or more static RFID readers 106. Static RFID readers 106 are configured to conduct a scan of items held within cabinet 100 while doors 102 are closed. Static RFID readers 106 can be used to help determine the storage of items within the cabinet 100 (or a set of cabinets and/or other access-controlled areas). Cabinet 100 may be linked to a central server through a computer system 110 that has at least one processor, memory, and computer code to control the operation of the various systems associated with cabinet 100 (such as scanners, doors, indicator lights, and the like). A database of the computer system 110 can be updated with the item store. A central server, or other remotely located computer system, may also receive updated warehouse information from the computer system 110 over a computer network. In this way, data from multiple offices located within a healthcare facility can be updated with deposit information in real time. In addition, cabinet 100 may include one or more transaction RFID readers 108. Transaction RFID readers 108 are configured to operate (from signals received from computer system 110) when one or more ports 102 are are) open to scan items being removed from, or placed into, the interior of the cabinet 100. Transaction RFID readers 108 may be configured to detect moving items that are removed from or placed within the cabinet. Accordingly, transaction RFID readers 108 may be appropriately positioned with respect to ports 102 so that they can perform their scan when port 102 is opened and an item is being removed from, or placed into, the interior of the cabinet. Information relating to the removal or placement of such items may be stored or compared to the database using the computer system 110 (and also transmitted to a remote computer system). The process of detecting and storing an individual item can take less than about two seconds, allowing minimal delay for a busy clinician. Transactions involving the item can be logged in and/or verified against the database.
[0032] In some embodiments, the cabinet 100 may include an external reader 116. The external reader 116 may be positioned on an exterior of the cabinet 100, such as close to the computer system 110 to facilitate entry of transaction-related data. wrapping the item. External reader 116 may be a bar code scanner, RFID reader, any other reader configured to identify an item, or a combination of such readers and scanners. The external reader 116 can be used when removing items from the cabinet 100 or when placing items inside the cabinet 100. In some cases, the external reader 116 can be used in place of transaction RFID readers 108. For example, the reader external 116 may be used if the transaction RFID readers 108 are broken or disabled, if an item does not include an RFID tag, or if the RFID tag has been dropped or removed. In some cases, transaction RFID reader 108 may be used in conjunction with external reader 116, for example, as a quality control check. It will be appreciated that any number of doors 102 can be used in cabinet 100, and each of the doors can provide access to one or more shelves, compartments or other storage areas 104 in which items can be stored. The use of multiple ports 102 and storage areas 104 creates separate access areas, which can be useful in some applications, such as applications where certain items can only be accessed by users of a particular access level. For example, access areas A1 and A2 can have a different access level than access area B. Any number of access areas can be created using independently lockable doors 102.
[0033] Cabinet 100 may include a guide light or other indicator signal to locate a correct cabinet 100, door 102, and/or item storage area 104. The use of guide lights is described in US Pat No. 5,745,366, 5,805,455, 5,805,456, 6039,467, 6,272,394, and 5,385,505 incorporated herein by reference for all purposes.
[0034] Computer system 110 may be built into, or formed with, cabinet 100, in close proximity to cabinet 100, or mounted on cabinet 100. Here, computer system 110 is mounted on top of cabinet 100 and in the form of physical conductors for the various electrical components of cabinet 100. Computer system 110 may alternatively be coupled with cabinet 100 (including the various electrical components contained in cabinet 100) by Ethernet, optical infrared, serial cable, USB, Bluetooth , other wireless communication interface, or any other means of data connection. When using an external computer, either in close proximity to chassis 100 or mounted in chassis 100, using a general purpose computer is possible with different form factors. For example, the type, size, shape, and/or configuration of the external computer is limited by the cabinet design. Use of such a computer may allow an existing cabinet to be retrofitted with a multipurpose computer and/or one or more RFID sensors to achieve the desired item tracking efficiency. As software rapidly evolves into RFID cabinet warehouse management system control, newer versions often need a new operating system and these in turn need a new computer. By keeping the computer system 110 off-site, upgrading computer software and hardware is easy and inexpensive.
[0035] The computer system 110 may include a console screen 114 and an input area 112. For example, the input area 112 may include a keyboard, a numeric keypad, a touch screen, and the like. In some embodiments, input area 110 may be used to identify a user. For example, a user may enter a user ID, password, PIN, and/or other identifier into input area 112 to validate or authenticate the user's identity to grant access. In some embodiments, an RFID badge, magnetic card, or other identification device may provide access to the RFID warehouse management system. In other embodiments, the input area 112 may include biometric sensors, such as fingerprint, facial, or retinal scanners to biometrically identify a user. Some embodiments may incorporate a wireless device that can be worn or held by a user, or otherwise held in close proximity to the user. The wireless device communicates wirelessly with the computer system 110 to identify a user as the user approaches the cabinet 100. Input area 112 may also be used to select from a variety of options related to items within. of cabinet 100. For example, a user may select an item name or identifier of an item being removed or replaced, a patient name or ID may be entered into the computer system 110 via input area 112, and/or a objective for the item may be entered into a record in the computer system 110. For example, objectives may include patient use, moving from a first location to a second location, transforming goods into new shapes/sets and residue.
[0036] Computer system 110 may additionally be configured to lock and unlock ports 102. For example, computer system 110 may unlock and/or open at least one port 102 upon entry of a valid user ID, a password, an item request, and the like. Each of the ports 102 may be lockable independently of the ports 102 such that only access to selected/allowed areas is enabled. This allows different storage areas 104 to have different levels of access.
[0037] In some embodiments, an expiration date for one or more of the items can be linked to RFID tags. As the first RFID system scans the cabinet, it can be determined whether any of the items in the cabinet have expired or are approaching an expiration date. The computer system can be configured to provide an alert or other indication of such items that need to be used before expiration or removed from the cabinet after the items have expired.
[0038] Fig. 2 illustrates a method for using an RFID integrated warehouse management system in an enclosure system, such as the enclosure 100 described above. It will be appreciated that a similar method may be used in conjunction with RFID warehouse management systems embedded in carts, other medical locations, and other controlled access areas. At block 200, a system user can be identified. In some embodiments, the user may be identified using a biometric identifier, a password entered into a computer system, and/or using a wireless device that communicates with the computer system when the user is in close proximity to the user. system to provide the user with access to the interior of the cabinet. The user may select a purpose or use for the item being removed or placed into the cart, at block 202. For example, a user may enter a purpose by typing the purpose into the computer, selecting an objective from a list or menu on the computer, or can scan a customer ID, such as scanning a patient wristband. Objectives may include, but are not limited to, for patient use, transferring an item from one location to another location, transforming one or more items to a new shape and/or assembly, and waste. Goals typically include removing an item from the cart or placing an item in the cart. If an objective is not selected by a user, the system may perform tasks unrelated to the physical warehouse at block 228. For example, the system may lock the cart doors at block 230, activate the internal RFID scanners at block 232, and /or put the external motion sensors into a "snooze" mode at block 234.
[0039] If a user does select an objective, the system can perform one or more tasks related to physical storage. For example, the system can unlock a specific door to allow access to a selected item or items in block 204, the system can put the internal static RFID scanners into a “snooze” mode or otherwise disable the static RFID scanners in the block 206, and/or the system may activate motion sensors (transaction RFID scanners) and/or external static RFID scanners at block 208. The system determines whether the objective involves removing an item or placing an item on the cart, at block 210. When the objective involves placing an item onto the cart rather than removing an item, an external scan may be conducted at block 212 and/or a self-removal scan may occur at block 214 when the user places the item in the cart at block 216. As used herein, "self-removal scan" can refer to both a scan of an item being placed in the cart and a scan of an item being removed from the cart. The user may be prompted to select whether an external scan of the item is desired, or external scanner can be enabled, should the user wish to externally scan the item. For example, a barcode can be scanned, a UPN can be entered, the item's RFID tag can be externally scanned, or any other method of identifying the item can be used. Self-removal scanning can be done using transaction RFID scanners to sense objects being moved in and out of the cart by the user. Often, a user will only have external scanning or self-removal scanning performed for a particular application. For example, a user can rely on transaction RFID scanners to detect items removed from, and placed into, the cart for warehouse management purposes most of the time. In some cases, the external scanner may be used to track items that do not contain RFID tags or may be used if transaction RFID scanners are broken, disabled, or otherwise inactivated. In some cases, external scanning and self-removal scanning can be used together, such as for quality assurance checks. After a self-removal scan has been conducted or skipped the system can prompt the user to select whether a second item is required for the target in block 224. If the user needs a second item for the target, the system can determine if an item is to be removed from the cart or is to be added to the cart, at block 220. The system can automatically determine whether a second item is needed based on the selected objective. When there is no extra item needed for the objective, the user may be prompted to select whether the user has a new objective in block 226. If the user has a new objective, the user can then select a objective in block 202. If the If the user does not have a second objective, the system can lock the doors at block 230, activate the internal static RFID scanners at block 232, and/or set the external motion sensors (transaction RFID scanners) to “snooze” mode. at block 234. The system can then update a warehouse database using the warehouse when detected by static RFID sensors at block 236. The system can be accessed by a new user or the same user at a later time, returning to block 200.
[0040] In cases where an initially selected objective involves removing an item from the cart, the item may be selected and removed by a user at block 218. A self-removal scan may be conducted at block 220 when the user removes the item at block 222. The user then has the option of conducting an external scan of the item. As described above, one or both of self-removal scanning and external scanning can be conducted based on user preferences. After the item is scanned, the system may prompt the user to select whether a second item is needed for the purpose at block 224 and the process may continue as described above.
[0041] During scanning, transaction RFID scanners and/or static RFID scanners, the particular transaction can be stored and/or verified in the database. In some embodiments, the selected objective may be introduced by an external scan of an item. The computer can be configured to recognize this scan as an objective to place the item inside the case. The computer can then unlock one or more doors, put the internal static RFID sensors into “snooze” mode, activate motion sensors (transaction RFID scanners). A self-removal scan can be conducted as the item is placed inside the cabinet. The system can continue with the deposit process as described above for placing an item into the cart.
[0042] The use of both static and dynamic (transaction) RFID scanners allows users to efficiently retrieve items from a cart while maintaining accurate warehouse. The static scanner(s) may conduct periodic scans of all items in the cabinet, such as scans conducted when the doors are closed, to maintain a warehouse of all items. Because all, or substantially all, items are scanned in this time, scanning may take 5-30 seconds. To ensure that a user does not experience this delay when an item is needed, dynamic scanners can be activated when ports are opened. Dynamic scanners can then detect the removal of items from, or placement of, items within the cabinet. As only removed and/or placed items are scanned, the time required for scanning can be less than about 2 seconds. Reducing this delay can be particularly beneficial when a caregiver is removing items for multiple patients. After removing items from one patient, the caregiver can enter incoming patient identification information for another patient within the cabinet and immediately begin removing items for the second patient, without waiting for a deposit scanning process to complete. full, for example another 5-30 seconds.
[0043] It should be noted that the methods, systems and devices discussed above are intended to be examples only. It should be noted that various embodiments may omit, replace, or add various procedures or components, as appropriate. For example, it should be noted that, in alternative embodiments, the methods may be performed in a different order than described, and that various steps may be added, omitted, or combined. Furthermore, the features described in relation to certain embodiments may be combined from several other embodiments. Different aspects and elements of the embodiments can be combined in a similar way. In addition, it should be noted that technology evolves and thus many of the elements are examples and should not be interpreted to limit the scope of the invention.
[0044] Specific details are given in the description to provide a thorough understanding of the embodiments. However, it will be understood by one of ordinary skill in the art that the embodiments can be practiced without these specific details. For example, well known processes, structures and techniques have been shown without unnecessary detail in order to avoid confusion of embodiments. This description provides exemplary embodiments only, and is not intended to limit the scope, applicability, or configuration of the invention. Rather, the foregoing description of the embodiments will provide those skilled in the art with a description enabling implementation of embodiments of the invention. Various changes can be made to the function and arrangement of elements without departing from the spirit and scope of the invention.
[0045] Furthermore, it is noted that the embodiments can be described as a process which is described as a flowchart or a block diagram. While each can describe the operations as a sequential process, many of the operations can be performed in parallel or simultaneously. Also, the order of operations can be rearranged. A process may have additional steps not included in the figure.
[0046] Having described various embodiments, it will be recognized by those skilled in the art that various modifications, alternative constructions and equivalents may be used without departing from the spirit of the invention. For example, the above elements may merely be a component of a larger system, where other rules may take precedence over or otherwise modify the application of the invention. In addition, a number of steps may be performed before, during, or after the above elements are considered. Therefore, the above description should not be taken as limiting the scope of the invention.
[0047] The invention has now been described in detail for purposes of clarity and understanding. However, it will be appreciated that certain changes and modifications may be practiced within the scope of the appended claims.

权利要求:
Claims (20)
[0001]
1. Cabinet system for monitoring items having an RFID tag, the system comprising: a cabinet comprising: an interior where items are stored; and at least one door providing access to the items; a static RFID system having a first antenna for reading and identifying data embedded in RFID tags located on at least some of the items placed inside the cabinet, wherein the static RFID system is configured to scan all items located inside from the cabinet when at least one door is closed; and a computer system that is configured to detect the opening and closing of the at least one door, characterized in that it comprises: a transaction RFID system separate from the static RFID system, the transaction RFID system having a second antenna to read data from one of the RFID tags upon removal or replacement of the associated item from the RFID cabinet, wherein the transaction RFID system is operable only when the door is open; and wherein the computer system is configured to receive input identifying a user, receive an objective introduced for an item to be placed in or removed from the cabinet, and wherein the computer system is configured to periodically record data read from of RFID tags by the static RFID system and the transaction RFID system.
[0002]
2. Cabinet system according to claim 1, characterized in that the cabinet additionally comprises a plurality of doors and the interior comprises a plurality of storage areas, and wherein each of the plurality of doors controls access to a corresponding to the plurality of storage areas.
[0003]
3. Cabinet system according to claim 2, characterized in that each of the plurality of storage areas comprises a different level of access.
[0004]
4. Cabinet system according to claim 1, characterized in that the transaction RFID system is configured to read data on one of the RFID tags for a detection time that is less than 2 seconds.
[0005]
5. Cabinet system according to claim 1, characterized in that the computer system is configured to store and correlate expiration date information with items in the cabinet and to provide an indication of an approaching or past expiration date. for each of the items.
[0006]
6. Cabinet system according to claim 1, characterized in that the input comprises one or more of a biometric identifier, a username, a password, and a signal from a wireless device assigned to the user.
[0007]
7. Cabinet system according to claim 1, characterized in that it additionally comprises an external item reader, the external item reader comprising at least one of an RFID scanner and a barcode reader.
[0008]
8. A method of monitoring items having an RFID tag, the method comprising: storing a plurality of items within an interior of an enclosure defining a controlled access area, wherein access to the interior is gained through one or more doors , and wherein at least some of the items are coupled to an RFID tag having electronically readable identification data; a computer detecting the opening or closing of one or more doors; while the door is closed, use one or more static RFID scanners to read data on all RFID tags located within the controlled access area to monitor a warehouse for all items; store the deposit in a database; characterized by the fact that it comprises: the computer authenticates a user who is requesting access to the controlled access area; the computer receives an input target for an item to be placed within or removed from the controlled access area; while the door is open, scan an item's RFID tag using one or more transaction RFID scanners separate from static RFID scanners as the user removes the item or places the item in the controlled access area; and record the removal or placement of the item in the database.
[0009]
9. Method for monitoring items according to claim 8, characterized in that authenticating the user comprises verifying one or more selected user entries of a biometric identifier, a username, a password and a signal from a designated wireless device. for the user.
[0010]
10. Method for monitoring items according to claim 8, characterized in that using one or more static RFID scanners comprises periodically scanning all items at a scheduled interval.
[0011]
11. Method for monitoring items according to claim 8, characterized in that the scanning of an RFID tag is completed in less than 2 seconds.
[0012]
12. Method for monitoring items according to claim 8, characterized in that it additionally comprises storing and correlating expiration date information with the items and providing an indication of upcoming or past expiration dates for the items.
[0013]
13. Method for monitoring items according to claim 8, characterized in that it additionally comprises activating the one or more transaction RFID scanners when the one or more ports are open and deactivating the one or more transaction RFID scanners when one or more doors are closed.
[0014]
14. Method for monitoring items according to claim 8, characterized in that it additionally comprises activating the one or more static RFID scanners when the one or more doors are closed and deactivating the one or more static RFID scanners when the one or more ports are open.
[0015]
15. Method for monitoring items according to claim 8, characterized in that it comprises determining if a second item is necessary for the objective and determining if the user has a new objective for a new item stored in the controlled access area.
[0016]
16. Method for monitoring items according to claim 8, characterized in that it additionally comprises reading information from an item that is located externally in relation to the controlled access area using an external scanner.
[0017]
17. Method for monitoring items having an RFID tag, the method characterized in that it comprises: using one or more static RFID scanners having at least a first antenna to read and identify data embedded in RFID tags located on at least some items placed within the interior of a controlled access cabinet to monitor a warehouse for all items when one or more doors controlling access to the controlled access area are closed; store the deposit in a database; receive an entry that identifies a user of a warehouse management system; unlock one or more doors to provide user access to items; detect the opening and closing of one or more doors; receive an objective entered for an item to be placed in or removed from the cabinet; scanning an item's RFID tag using one or more transaction RFID scanners separate from the static RFID scanners and having at least one second antenna as the user removes the item from the controlled access cabinet, where the one or more RFID scanners transactions are operable only when at least one of the one or more ports is open; lock one or more doors to prevent the user from accessing the items; and periodically recording in the database the data read from the RFID tags by the one or more static RFID scanners and the one or more transaction RFID scanners.
[0018]
18. Method for monitoring items according to claim 17, characterized in that using one or more static RFID scanners comprises periodically scanning all items at a scheduled interval.
[0019]
19. Method for monitoring items according to claim 17, characterized in that it additionally comprises activating the one or more transaction RFID scanners when the one or more ports are open and deactivating the one or more transaction RFID scanners when one or more doors are closed.
[0020]
20. Method for monitoring items according to claim 17, characterized in that it additionally comprises activating the one or more static RFID scanners when the one or more doors are closed and deactivating the one or more static RFID scanners when one or more ports are open.

类似技术:

公开号 | 公开日 | 专利标题

BR112015011514B1|2022-01-25|Cabinet system and method for monitoring items having an RFID tag

US9626485B2|2017-04-18|Secure medication transport and administration system

EP1771829B1|2014-01-15|Rfid cabinet

JP2002119577A|2002-04-23|Management system for medical article, especially catheter

同族专利:

公开号 | 公开日

KR20150087371A|2015-07-29|

WO2014078860A1|2014-05-22|

BR112015011514A2|2018-04-24|

EP2920775A4|2016-04-27|

AU2013344345B2|2017-03-23|

CA2891844A1|2014-05-22|

JP6490587B2|2019-03-27|

JP2016507442A|2016-03-10|

CA2891844C|2019-10-29|

US9875461B2|2018-01-23|

US10885494B2|2021-01-05|

KR20190090877A|2019-08-02|

US20170053230A1|2017-02-23|

CN105122324A|2015-12-02|

ES2687549T3|2018-10-25|

US9324051B2|2016-04-26|

KR102110578B1|2020-05-13|

US20180101816A1|2018-04-12|

AU2013344345A1|2015-06-04|

KR102089650B1|2020-03-16|

EP2920775B1|2018-08-08|

US20140138440A1|2014-05-22|

EP2920775A1|2015-09-23|

CN105122324B|2019-12-13|

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法律状态:
2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2020-06-23| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2021-08-17| B350| Update of information on the portal [chapter 15.35 patent gazette]|

2021-11-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2022-01-25| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/11/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

US201261727956P| true| 2012-11-19|2012-11-19|

US61/727956|2012-11-19|

PCT/US2013/070811|WO2014078860A1|2012-11-19|2013-11-19|Storage cabinet with multiple rfid readers|

US14/084349|2013-11-19|

US14/084,349|US9324051B2|2012-11-19|2013-11-19|Storage cabinet with multiple RFID readers|

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