GB2366945A - Passenger and baggage locating system - Google Patents

Passenger and baggage locating system Download PDF

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Publication number
GB2366945A
GB2366945A GB0022318A GB0022318A GB2366945A GB 2366945 A GB2366945 A GB 2366945A GB 0022318 A GB0022318 A GB 0022318A GB 0022318 A GB0022318 A GB 0022318A GB 2366945 A GB2366945 A GB 2366945A
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location
tag
tags
passenger
position
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Granted
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GB0022318A
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GB0022318D0 (en
GB2366945B (en
Inventor
Lav Kanodia
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IPROX Ltd
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IPROX Ltd
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Publication of GB2366945B publication Critical patent/GB2366945B/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of the preceding main groups, e.g. automatic card files incorporating conveying and reading operations

Abstract

Aircraft passengers, or passengers of other types of transportation, are assigned location tags 20 with their boarding cards. The tag includes a unique identifier and passenger details are stored 22 with the identifier on a central computer system. If a passenger fails to board on time the tag is activated and the position 26 of the passenger can be found and displayed 28. The passenger can then either be sent a message 30, which may be played over a proximate tannoy or displayed on a display unit integral with the tag, or be retrieved. By attaching location tags to bags, their position can be determined on arrival at a destination or tagged bags can be found in the hold to enable priority handling.

Description

<Desc/Clms Page number 1> BAGGAGE AND PASSENGER MONITORING SYSTEM FIELD OF THE INVENTION This invention relates to the monitoring of passengers and baggage. It is particularly, but not exclusively suited to the airline industry. <img class="EMIRef" id="024177278-00010002" />

BACKGROUND TO THE INVENTION The delaying of flights due to missing passengers can be very expensive to an airline. The loss of a takeoff slot can cause a flight to be delayed and may result in inconvenience to passengers, missed connecting flights and, to the airline, airport fees having to be paid. Once a passenger has checked in for a flight the airline is obliged to use every effort to takeoff with that passenger on board. However, passengers do not always present themselves at the gate on time for a number of reasons including unfamiliarity with the airport, unfamiliarity with the language used at the airport or unfamiliarity with air travel in general. There is a need to improve systems for ensuring passengers board aircraft on time to reduce airline overheads and increase punctuality. This need also applies to other modes of transport. Lost baggage can be problematic to airlines and distressing to customers. Bags which have been placed on the wrong flight have to be retrieved and delivered to the customer and lost items replaced at the airline's expense. It is common to include a bar code on the destination tag adhered to a piece of luggage but this only tells the reader which flight and destination the piece of luggage should have been placed on and not where it actually us. There is, therefore, a need for improved met"ods of tracing airline baggage and baggage carried by other modes of transport.

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<img class="EMIRef" id="024177278-00020001" />

SUMMARY OF THE INVENTION The present invention aims to tackle the above mentioned problems and to provide improved methods and systems for locating passengers and baggage. In its broadest form, one aspect of the invention contemplates the use of mobile telecommunications handset tracking techniques for both passengers and baggage. More specifically, there is provided a passenger location system comprising: a plurality of location tags, each tag to be assigned to a passenger prior to boarding a vessel and each tag comprising a mobile communications transmitting device; storage means for storing a unique tag identifier with passenger information;a mobile communications network for transmission of signals from the location tags; activation means for selectively activating one or more location tags for transmission of signals; a location provider for determining the position of each of the activated location tags; and a display device communicating with the location provider for displaying the position of selected tags with respect to a local area; whereby the location of a passenger can be determined. This aspect of the invention also provides a method of locating passengers prior to boarding a transportation vessel, comprising the steps of: assigning a location tag to each passenger, each location tag comprising a mobile communications transmitting device; storing a unique identifier for each location tag with passenger information; activating location tags for passengers not on board the vessel at a given time; determining the position of the activated location tags using a mobile telecommunications location provider; and displaying the determined position of the activated tags. Embodiments of this aspect of the invention have the advantage that passengers who have not boarded an aircraft after check in can speedily be located, within the airport, and retrieved for boarding. This helps to ensure that a

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flight takes off on time reducing the risk of missed takeoff slots and the attendant delays, costs and passenger dissatisfaction.

Preferably, the location tags each comprise means for receiving mobile communications signals, and the system comprising means for sending messages to activated location tags whose location is displayed on the display device.

This preferred embodiment of the invention has the advantage that located passengers may be contacted remotely, so reducing passenger retrieval time.

Alternatively, the location tags may be radio tracking devices.

Preferably, the location tags are integral with a boarding card.

This embodiment of the invention has the advantage that the location devices are incorporated into an existing point of airline travel, the boarding card, assisting acceptance and assisting handling by the airline.

The invention further provides an object location system for locating the position of a movable object, comprising: a plurality of location tags, each to be assigned to an object, each location tag comprising a mobile communications transmitting device; a storage device for storing a unique location tag identifier with details of the object to which it has been assigned; a mobile communications network for transmission of signals from the location tags; activation means for activating selectively one or more tags for transmission of signals; a location provider for determining the position of each of the activated location tags; and a display device for communicating with the location provider for displaying the position of selected tags with respect to a local area, whereby the location of an object to which a tag is assigned can be found.

The invention still further provides a method of locating the position of objects, comprising the steps of:

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assigning a location tag to each of the objects, each location tag comprising a mobile communications transmitting device; storing a unique identifier for each location tag together with object information relating to the object to which the tag is assigned; activating selectively one or more tags for transmission of signals; locating the position of the activated location tags within. a predetermined area using a mobile communications location provider; and displaying the location of located activated tags.

Embodiments of this aspect of the invention. have the advantage that objects such as bags within an airport or a hold may easily be located and retrieved improving efficiency and the quality of service delivered to the <img class="EMIRef" id="024177278-00040004" />

passenger. Preferably the location tags are either embedded in an object such as a bag or removably attached. The latter is advantageous where the tags are provided by an airline and the former where provided by the owner of the object. A second aspect of the invention resides in the use of security tags to detect the position of baggage or passengers. Security tags are commonly used in shops to prevent theft of items of merchandise. In the second aspect of the invention passengers are issued with security tags, for example in a boarding card and/or attached to luggage. Tag readers installed at strategic areas around the airport such as duty free, passengers lounges, bars and restaurants register which tags are in which area. This information is stored in a database which can be interrogated by the airline to locate a missing passenger of article of luggage. DESCRIPTION OF BEST MODE -mbodiments of the invention will now be described with <img class="EMIRef" id="024177278-00040006" />

reference to the accompanying drawings, in which: Figure 1 is a schematic representation of a first embodiment of the invention;

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Figure 2 is a flow chart showing the steps in one method of operating the system of Figure 1; Figure 3 is a flow chart showing the steps in an embodiment of a second aspect of the invention; Figure 4 is a flow chart showing the steps in a second embodiment of the second aspect of the invention; and Figure 5 is a schematic representation of the second aspect of the invention.

Referring to Figure 1, the embodiment relies on the use of mobile telephone location detection techniques to keep track of passengers once they have been checked in and assigned boarding cards.

Within cellular telephone systems there are a number of known ways for the geographical position of a handset to be fixed. The mobile telephone operator can determine crudely in which cell the handset is. However, cell sizes vary enormously from a few hundred metres in densely populated areas to a few miles in remote areas. Mobile telephone operators usually contract out location services to location providers which can determine more precisely the position of a handset within a cell. One well known technique uses triangulation between the base stations defining a cell, for example, based on relative signal strength at each of the stations. Another known method uses GPS (Global Positioning System) using the GPS satellite network to fix position accurately. This method can only work if the handset is fitted with a suitable GPS transmitter. For the purposes of this and other embodiments of the invention, it does not matter which of the described, or other, position fixing methods is used, provided it can fix position within a cell to the same order of accuracy as existing methods.

When a passenger for a flight checks in for that flight he or she is issued with a boarding pass. In the first embodiment of the invention, the passenger is also issued with a mobile communications transmitter or with a boarding card modified to include a mobile communications transmitter. This transmitter need not be a conventional

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mobile telephone handset as the user will not use it to make calls. However, it must be capable of transmitting a signal at least in response to a received polling request or at per`odic intervals. The transmitted signal must either contain a unique identifier or be at a unique frequency to enable a receiving station to distinguish between passengers. As the purpose of the system of this embodiment is to ensure location of all passengers for a given flight it would be possible for all the transmitters issued to passengers on a given flight to operate on a common frequency or with a common identifier as will become clear. <img class="EMIRef" id="024177278-00060002" />

The record of what passenger has been assigned what tag is held on a central computer system which also includes a :nap of the airport, or significant portions of the airport to which passengers have access. As airports include multistorey buildings the map is preferably three dimensional or layered. The computer system can display the position of each passenger on the GIS (Graphical Information System) map of the airport to show the position of each passenger to whom a location tag has been assigned. As can be seen from Figure 1, the computer system is connected to the location provider which is in turn connected to the mobile telephone operation. However, it will be appreciated that the mobile telephone operator could be a private network limited to the airport and may only have a few cells, or in a small airport, only a single cell. As passengers board a fight, boarding cards are conve ticnal ly removed and processed, usua@.ly by a computer to correlate passenaers boarding -he plane with passengers who have checked in. In the present embodiment, location tags are returned to the airline at this point and deactivated. Thus, if any passengers are missing, the display provided by the computer system is just of those passengers who have not yet boarded, making interpretation o- the display more easy. W'-en the airline discovers that a passenger has not ..carded, they may estab'_@.sh the position of that passenger's

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location tag and then dispatch a representative to fetch the passenger. Alternatively, if the location tag is capable of receiving incoming calls, the airline may use the mobile telecommunications device to call the passenger and ask them to board. The call may be a voice call or a transmitted text message. It may even do no more than cause the location tag to be activated, for example, by ringing or lighting up. The airline may choose to notify all passengers in this manner when a flight is ready for boarding as this is a more effective way of communicating with passengers than general tannoy announcements or general displays, which are often unnoticed or ignored by passengers.

Referring now to Figure 1, the mobile telephone network is indicated generally at 10. Attached to the network is a location provider 12, which is usually a service contracted out by the mobile network provider to a third party. A number of passenger tags 14 are shown connected to the network. As discussed earlier, these tags may be one of a number of forms. The airport GIS system 16 is attached to the location provider to enable the locations of each of the tags to be superposed on a map of the airport to enable to location of the passengers holding the tags to be identified.

Figure 2 is a flow chart showing the process described. At step 20, a passenger checks in and is allocated a boarding pass either with a separate locator tag or an integral locator tag. At step 22 the unique identifier for that tag is stored against the passenger details, including flight number, seat number and other pertinent details which may include telephone number, physical and e-mail address. At step 24 the flight is called. At step 26, when the flight is about to close, or a certain time before closing, the airline staff activate the tags of all passengers who have not boarded the plane. On boarding, the tags are removed from passengers, or the portion of the boarding tag bearing the position tag is removed in a similar manner to a conventional boarding pass. At step 28 the position of

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unboarded passengers is displayed. At step 30 a broadcast message is sent all remaining passengers. As mentioned previously, this may be a telephone call, a text message or a simple indicator depending on the type of location tag used. At step 32 the system determines whether all checker passengers have boarded and, if not, repeats steps 26 to 30 until it has ail passengers on board at which point the process ends.

The process described above may be varied if the locator tags are not capable of receiving calls, in which case, once position has been determined, a member of the airline staff must be dispatched to find the passenger at the known location.

The embodiment has the advantage of enabling airlines rapidly to locate missing passengers and so speed up the process of boarding an aircraft thus ensuring that an assigned take off slot can be kept. Although the embodiment has been described with reference to aircraft it will be appreciated that it is equally applicable to any situation where it is necessary for a finite number of checked people <img class="EMIRef" id="024177278-00080003" />

to be in a given location before an event can commence. In the case of an airline, that event is takeoff but the system may be used, for example, in passenger trains, ships and coaches as well as other static venues such as concert halls and conference rooms. These examples are not exhaustive and other applications will occur to those skilled in the art. Figures 3 to 5 illustrate a second aspect of the invention which resides in the application of telecommunications positions techniques to baggage tracking and retrieval. Jnsuring that a piece of baggage is loaded onto the correct flight and then presented for retrieval is a highly complex operation in airports which handle large numbers of flights simultaneously. It is particularly complex if a passenger changes flights and the bags are checked through, requiring the ground staff at the intermediate airport to

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identify and unload the correct baggage and then load it onto the correct connecting flight. This can be extremely time consuming. Despite the precautions taken by airlines, by which all bags are bar coded and entered into a central computer system, bags frequently get lost, in some cases being sent to the wrong destination.

It is often a source of considerable irritation to first class and business class passengers who, having paid a premium rate for their flights, have to wait for a long time to retrieve their bags upon deplaning. This can be particularly problematic on large aircraft carrying large numbers of people. Although some airlines attempt to label some bags as priority bags, the results are often haphazard.

In the previous aspect of the invention, mobile telecommunications devices are distributed to passengers, for example, integrated into a boarding pass. In this aspect of the invention, the same communications devices are assigned to baggage. A customer with a valuable piece of luggage may purchase their own location tag or location tags may be fitted to the baggage by the airline. For example, the airline may choose to offer baggage tagging to first and/or business class passengers to increase the desirability of that service. The location tags may be embedded into the luggage, for example within the lining of a pocket or be strapped or otherwise tied to the outside of the baggage. The former is preferred where the tag is purchased by the owner and the latter preferred when the tag is fixed temporarily to the bag by the airline.

When the baggage tag is assigned by the airline to a passenger, the baggage tag details and the flight information are stored together. The stored information may include a unique tag identifier, such as its transmitting frequency, the flight number, usually an alphanumeric code, the destination and the passenger name. Many variations of these details are possible to suit the circumstances. For example, passenger contact details such as address,

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telephone number and e-mail may be stored or a link to a passenger database included.

In the example of an airline assigned tag the tag need only be activated when the bag is actually lost or stolen. At that time the position of the bag can be determined using position location as described with respect to the first aspect of the invention. However, in the first aspect of the invention it is known in which airport a missing passenger is to be found. In the present aspect, the missing baggage may be in the airport of origin, in the destination airport or in an intermediate airport where the passenger changed flight. If the baggage has been sent to the wrong destination it could be at any other airport to which the carrier has flown that day. <img class="EMIRef" id="024177278-00100001" />

In order to locate the missing bag, the airports involved in the journey, destination, intermediate and origin are notified of the missing bag and the unique tag identifier and can then attempt to locate the bag using a telecommunications location system in place at each airport. This system may be the same as, or an extension of the system used to track passengers at that airport according to the first aspect of the invention. Thus, a bag which is lost, but is at one of the airports visited by the passenger, may easily be retrieved. The system may also be used to retrieve specific items of baggage from an aircraft hold. This may be necessary in a number of situations and will often lead to considerable disruption and delays- nor example, if a passenger is removed -nom a flight after -_:e baggage has been checked, that baggage must be found and removed whether or not it has already been loaded onto the aircraft. This is a time consuming operation and it will be appreciated that bv activating the baggage location tag, the position of the bag is accurately and swiftly determined. Certain types of bag may be quickly identified and retrieved from the hold. One application of this is for first class and business class baggage. On landing this

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baggage is removed first. The location tags of a11 the baggage in these preferential categories are activated to ensure that no baggage remains in the aircraft hold. Alternatively, these may be activated before removal so that the location of all tags in this category may be determined.

It will be appreciated that the location tags may be active or passive. That is, they may either emit signals at periodic intervals for position location or only when polled. As the bags will be on a boarded aircraft, it is preferred that they only emit signals when polled to prevent any interference with aircraft control systems. In that case the location tags must be able to receive a request from a central polling station and transmit a signal in response to enable position to be determined. Where signals are transmitted periodically there is no need for an ability to receive signals.

The embodiments of this aspect of the invention are shown schematically in the flow charts of Figures 3 and 4 and the block diagram of Figure 5. In Figure 3, the airline assigns a tag to a bag at step 100. At step 102 the unique details of the tag, such as transmission frequency, together with passenger details and flight number are stored. At step 104 the tag is applied to the passengers bag. At steps 106 and 108 the passenger flies to his or her destination and seeks to retrieve the bag through normal means. If the bag i s found, at 110 and 112 the process ends. If the bag is not found, the passenger reports the lost bag to the airline which activates the location tag at the destination airport at step 114. If the bag shows up on the GIS screen at the airport the bag may be retrieved and the process stops at step 116. If not, the airline notifies the airport of origin and any intermediate airports who attempt to activate the tag at step 118. This may involve passing the tag's unique identifier although that information may be accessible at the origin and intermediate airports through the airlines computer systems.

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If the bag is located at one of the airports of origin or intermediate airlines it may then be retrieved and the process ends at step 120. If not, and the bag has been sent to the wrong airport the system may either make use of vocation systems at other airports to which it toa=d have been sent, or rely on conventional location techniques, for example using bar code information as conventional baggage tags. <img class="EMIRef" id="024177278-00120002" />

Figures 4a and 4b show the second embodiment of this aspect of the invention. Steps 200, 202 and 204 are the same as in Figure 3. In Figure 4a at step 205 the passenger's bags are retrieved from the aircraft hold. At this stage it is only priority bags such as first and business class which are retrieved. At step 208 the location tags are activated and any remaining tagged bags are located and, at step 210, removed from the hold. The embodiment of Fiaure 4b is very similar except that the tags are activated at step 210 before removal of any bags allowing a11 tagged bags to be removed at step 212. Figure 5 shows schematically how bags may be distributed. The bags are tagged and loaded at the airport origin 300. The bags will be retrieved by the passenger at the destination airport 302. The passenger may change planes at an intermediate airport 304 at which his bags should be transferred to the plane for the onward journey. Each airport has its own cell or set of mobile telecommunications cells w-ich define an area 306 with@.n which tagged bags may be located. In both of the aspects of the invention described, the airline or other body may determine the location of a tag by reference to a GIS display. This display may be incorporated in to a hand held device, to enable a person dispatched to find the missing person or bag to keep monitoring their cos-_,7ion. T@-:e screen may display the position with respectto maps of decreasing scale and increasing detail as the handset approaches. This is of particular advantage in

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seeking luggage which is hard to distinguish from other luggage which may be deposited at the same place.

The aspects of the invention described here have the advantage of greatly decreasing the disruption caused by missing bags or passengers. The passenger location system and method has the advantage that the likelihood of flights being delayed and takeoff slots missed is greatly reduced so increasing airline efficiency, enhancing passenger satisfaction, airline reputation and reducing costs. The second aspect has the advantage that lost baggage be easily located and retrieved and premium rate customer baggage can be identified swiftly and retrieved in advance of other passengers, so enhancing the premium service and thereby enhancing the airlines efficiency.

In a further aspect of the invention, security tags are used to detect the position of baggage or passengers. Security tags are commonly used in shops to prevent theft of items of merchandise. In this aspect of the invention passengers are issued with security tags, for example in a boarding card and/or attached to luggage. Tag readers installed at strategic areas around the airport such as duty free, passengers lounges, bars and restaurants register which tags are in which area. This information is stored in a database which can be interrogated by the airline to locate a missing passenger of article of luggage.

All aspects of the invention may be applied to other modes of travel or operations involving large numbers of people or baggage. The first aspect of the invention may also be applied to static venues such as concert halls and the second aspect may have application in left luggage deposits or hotel luggage stores. Other applications are possible. Various modifications and developments are possible within the scope and spirit of the invention and will occur to those skilled in the art. The scope if the invention is limited only by the following claims.

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Claims (1)

  1. CLAIMS <img class="EMIRef" id="024177279-00140002" />
    1. A passenger location system comprising: a plurality of location tags, each tag to be assigned to a passenger prior to boarding a vessel and each tag comprising a mobile communications transmitting device; storage means for storing a unique tag identifier with passenger information; a mobile communications network for transmission of signals from the location tags; activation means for selectively activating one or more location tags for transmission of signals; a location provider for determining the position of each of the activated location tags; and a display device communicating with the location provider for displaying the position of selected tags with respect to a local area; whereby the location of a passenger can be determined. 2. A passenger location system according to claim 1, wherein the location lags each comprise means for receiving mobile communications signals, and the system comprising means for sending messages to activated location tags whose location is displayed on the display device. 3. A passenger location system according to claim 2, wherein the location tags each include a display for displaying a received message. 4_ A passenger location system according to claim 1, 2 or 3, wherein the display device comprises a portable display device.
    <Desc/Clms Page number 15>
    5. A passenger location system according to any of claims 1 to 4, wherein the location tags are integral with a boarding card. 6. A passenger location system according to any of claims 1 to 5, comprising a deactivating device for deactivating location tags when a passenger boards the vessel. 7. A method of locating passengers prior to boarding a transportation vessel, comprising the steps of: assigning a location tag to each passenger, each location tag comprising a mobile communications transmitting device; storing a unique identifier for each location tag with passenger information; activating location tags for passengers not on board the vessel at a given time; determining the position of the activated location tags using a mobile telecommunications location provider; and displaying the determined position of the activated tags. 8. A method according to claim 7, wherein the storing comprises storing flight number and passenger name together with the unique tag identifier. 9. A method according to any of claims 7 or 8, wherein the location tags each comprise means for receiving mobile communications signals, comprising sending messages to activated location tags where location is displayed on the display device. 10. A method according to claim 9, wherein determining the position of location tags comprising polling the activated tags.
    <Desc/Clms Page number 16>
    <img class="EMIRef" id="024177279-00160001" />
    11. A method according to any of claims I' to 9, comprising deactivating the active tags when the passenger to which the tag has been assigned boards the vessel. 12. An object location system for locating the position of a movable object, comprising: a plurality of location tags, each to be assigned to an object, each location, tag comprising a mobile communications transmitt-ng device; a storage device for storing a unique location tag identifier with details of the object to which it has been assigned; a mobile communications network for transmission of signals from the location tags; activation means for activating selectively one or more tags for transmission of signals; A location provider for determining the position of each of the activated location tags; and a display device for communicating with the location provider for displaying the position of selected tags with respect to a local area, whereby the location of an object to which a tag is assigned can be found. A system according to claim 12, wherein. the objects are travellers luggage. 1_. A system according to claim 13, wherein the location =ags are removably attached to .items of luggage. A s%,ste@ according to claim 13, wherein the 1 ocat l on bags are fixed to the _tem of luggage. ?o. A system according to any of claims i2-15, comprising means for communicating to a point of crigin or a point of transit the stored location tag identifier and object details.
    <Desc/Clms Page number 17>
    17. A method of locating the position of objects, comprising the steps of: assigning a location tag to each of the objects, each location tag comprising a mobile communications transmitting device; storing a unique identifier for each location tag together with object information relating to the object to which the tag is assigned; activating selectively one or more tags for transmission of signals; locating the position of the activated location tags within a predetermined area using a mobile communications location provider; and displaying the location of located activated tags. 18. A method according to claim 17, wherein the objects are baggage for transportation, wherein the steps of assigning and storing are performed at the point of origin and the steps of activating, locating and displaying are performed at the point of destination. 19. A method according to claim 18, wherein the steps of activation and location are performed after a passenger has determined that baggage has been mislaid. 20. A method according to claim 18, wherein the steps of activation and location are performed on arrival at the point of destination prior to distribution of baggage to passengers; whereby priority baggage can be separated from non-priority baggage. 21. A method according to claim 19, comprising following unsuccessful location of baggage, sending the stored unique tag identifier and associated object information to the point of origin and/or any intermediate points in a
    <Desc/Clms Page number 18>
    <img class="EMIRef" id="024177279-00180001" />
    journey and performing the steps of activation, location and display at the point of origin and/or any intermediate points. 22. A system for locating people, comprising: a plurality of location tags, each tag to be assigned to a person and each tag comprising a mobile communications transmitting device; storage means for storing a unique tag identifier with information about a person to whom a location tag has been assigned; a mobile communications network for transmission of signals from the location tags; activation means for selectively activating one or more location tags for transmission of signals; a location provider for determining the position of each of the activated location tags; and a display device communicating with the location provider for displaying the position of selected tags with respect to a local area; whereby the location of a person to whom a tag has been assigned. 23. A system for locating people or objects, comprising: a plurality of security tags, each tag to be assigned to a person or an object; a plurality of tag readers arranged at 'locations around an area, the tag readers detecting the presence of a security tag when said security tag is proximate the tag reader; A database for storing details of tage read by the tag readers; means for sending information about the reading of tags from the tag readers to the database; and means for displaying the locations of tags within the area based on tag information stored in the database.
    <Desc/Clms Page number 19>
    a display device communicating with the location provider for displaying the position of selected tags with respect to a local area: whereby the location of a person to whom a tag has been assigned.
GB0022318A 2000-09-12 2000-09-12 Baggage and passenger monitoring system Expired - Fee Related GB2366945B (en)

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US9667627B2 (en) 2012-04-10 2017-05-30 Sita Information Networking Computing Ireland Limited Airport security check system and method therefor
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