ClassID:

194864

G08B21/0275 - CPC Classification

Classification description:

Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for; Alarms for ensuring the safety of persons; Child monitoring systems using a transmitter-receiver system carried by the parent and the child Electronic Article Surveillance [EAS] tag technology used for parent or child unit, e.g. same transmission technology, magnetic tag, RF tag, RFID

Recent Application in this class:
#1
20250104545
2025-03-27

SYSTEMS AND METHODS FOR PROTECTING RETAIL DISPLAY MERCHANDISE FROM THEFT

#2
20250069488
2025-02-27

CONTEXT-BASED PROGRAMMABLE SAFETY RULES FOR PERSONAL PROTECTIVE EQUIPMENT

#3
20250012594
2025-01-09

PERSONNEL LOCATION MONITORING

#4
20240169301
2024-05-23

BEACON ENABLED DISTRIBUTION ITEMS

#5
20230419838
2023-12-28

Proximity detection system and method and collision avoidance system and method of using proximity detection

#6
20230306829
2023-09-28

Systems and methods for protecting retail display merchandise from theft

#7
20230298449
2023-09-21

Modular tracking device

#8
20230274112
2023-08-31

Personnel location monitoring

#9
20230267817
2023-08-24

Context-based programmable safety rules for personal protective equipment

#10
20230260636
2023-08-17

Method and apparatus to account for transponder tagged objects used during clinical procedures employing a shielded receptacle with antenna

#11
20230073841
2023-03-09

Beacon enabled distribution items

#12
20230039245
2023-02-09

Tracking tags

#13
20230022006
2023-01-26

Machine coordination and management of uniting a minor with a guardian

#14
20220375321
2022-11-24

Security system, method of emitting an alarm signal, bus, use of a security system

#15
20220319331
2022-10-06

Proximity detection system and method and collision avoidance system and method using proximity detection

#16
20220230521
2022-07-21

System and process for distributed network of redundant central stations

#17
20220215739
2022-07-07

CHILD ALERT NOTIFICATION SYSTEM

#18
20220215735
2022-07-07

Comprehensive system and method of universal real-time linking of real objects to a machine, network, internet, or software service

#19
20220208362
2022-06-30

METHOD AND APPARATUS TO ACCOUNT FOR TRANSPONDER TAGGED OBJECTS USED DURING CLINICAL PROCEDURES EMPLOYING A SHIELDED RECEPTACLE WITH ANTENNA

#20
20210319680
2021-10-14

Modular tracking device

#21
20210264761
2021-08-26

Context-based programmable safety rules for personal protective equipment

#22
20210233375
2021-07-29

Modular tracking device

#23
20210173034
2021-06-10

Object monitoring system

#24
20210136524
2021-05-06

System for locating remote objects

#25
20210103882
2021-04-08

Determining a remaining amount of material in a material package

#26
20210057086
2021-02-25

Method and apparatus to account for transponder tagged objects used during clinical procedures employing a shielded receptacle with antenna

#27
20200402383
2020-12-24

Comprehensive system and method of universal real-time linking of real objects to a machine, network, internet, or software service

#28
20200372801
2020-11-26

Proximity detection system and method and collision avoidance system and method using proximity detection

#29
20200191896
2020-06-18

Object monitoring system

#30
20200175838
2020-06-04

Eyeglasses-type wearable terminal, control method thereof, and control program

#31
20200168069
2020-05-28

Context-based programmable safety rules for personal protective equipment

#32
20200160684
2020-05-21

Method and system for remotely monitoring a user

#33
20200151527
2020-05-14

Durable RFID printed fabric labels

#34
20200126394
2020-04-23

Multi-modal tracking locator alarm system

#35
20200111365
2020-04-09

Proximity detection system and method and collision avoidance system and method using proximity detection

#36
20200082692
2020-03-12

RFID tag tracking systems and methods in identifying suspicious activities

#37
20200082686
2020-03-12

Systems and methods for protecting retail display merchandise from theft

#38
20200066129
2020-02-27

System and method for tracking students

#39
20200020063
2020-01-16

Beacon enabled distribution items

#40
20200013270
2020-01-09

Inventory systems with sensor-driven tag read points

#41
20190364404
2019-11-28

Alert system capable of indicating the nature of an object, person, or pet

#42
20190339351
2019-11-07

System and method for locating personnel at muster station on offshore unit

#43
20190304598
2019-10-03

Method and apparatus to account for transponder tagged objects used during clinical procedures employing a shielded receptacle with antenna

#44
20190287377
2019-09-19

Water-borne beacon detection system for missing persons

#45
20190279490
2019-09-12

Eyeglasses-type wearable terminal, control method thereof, and control program

#46
20190228630
2019-07-25

Beacon detection system for locating missing persons

#47
20190213861
2019-07-11

Offender monitoring system

#48
20190156643
2019-05-23

Child/Individual Tracking System

#49
20190130758
2019-05-02

Proximity detection system and method and collision avoidance system and method using proximity detection

#50
20190130727
2019-05-02

SMART MAT, LOCATING SYSTEM AND LOCATING METHOD

#51
20190122519
2019-04-25

Comprehensive system and method of universal real-time linking of real objects to a machine, network, internet, or software service

#52
20190114887
2019-04-18

Security and tracking systems and associated methods

#53
20190057289
2019-02-21

Durable RFID printed fabric labels

#54
20190051132
2019-02-14

MONITORING SYSTEM AND METHOD OF USE

#55
20190051130
2019-02-14

Method and system for remotely monitoring a user

#56
20190043329
2019-02-07

SYSTEM AND METHOD FOR MONITORING AN INDIVIDUAL BY A SINGLE MONITOR AND OR A SOCIAL NETWORK

#57
20190037352
2019-01-31

System for locating remote objects

#58
20180350218
2018-12-06

RFID tag tracking systems and methods in identifying suspicious activities

#59
20180322755
2018-11-08

Localized hazard alert system and method of use

#60
20180293865
2018-10-11

Comprehensive system and method of universal real-time linking of real objects to a machine, network, internet, or software service

#61
20180293862
2018-10-11

System and method for automatic tool tracking, monitoring, and inventory management

#62
20180227727
2018-08-09

Alert system capable of indicating the nature of an object, person, or pet

#63
20180216906
2018-08-02

Durable Asset Management Tag

#64
20180189915
2018-07-05

Beacon enabled distribution items

#65
20180182192
2018-06-28

Noise-tolerant security system

#66
20180151078
2018-05-31

Proximity detection system and method and collision avoidance system and method using proximity detection

#67
20180122202
2018-05-03

Security and tracking systems and related methods

#68
20180114423
2018-04-26

Battery operated device and tag for a battery operated tool

#69
20180108236
2018-04-19

Context-based programmable safety rules for personal protective equipment

#70
20180102037
2018-04-12

Security system tracking of remote items using reduced power

#71
20180096585
2018-04-05

Multi-modal tracking locator alarm system

#72
20180082560
2018-03-22

Beacon detection system for locating missing persons

#73
20180068544
2018-03-08

Alert system capable of indicating the nature of an object, person, or pet

#74
20180025606
2018-01-25

System and method for locating a patient

#75
20180018625
2018-01-18

Determining a remaining amount of material in a material package

#76
20170287303
2017-10-05

System and method for marking and identifying baled crop

#77
20170228566
2017-08-10

Wireless asset location tracking system and related techniques

#78
20170213059
2017-07-27

Methods, systems, and products for tracking objects

#79
20170039834
2017-02-09

Monitoring system

#80
20170032647
2017-02-02

Security system tracking of remote items using reduced power

#81
20170025016
2017-01-26

Proximity detection system and method and collision avoidance system and method using proximity detection

#82
20160379464
2016-12-29

Alerting on proximity of items

#83
20160371944
2016-12-22

Systems and methods for protecting retail display merchandise from theft

#84
20160328939
2016-11-10

System and method for locating a patient

#85
20160325867
2016-11-10

Safety control for product dispensers

#86
20160292980
2016-10-06

Comprehensive system and method of universal real-time linking of real objects to a machine, network, internet, or software service

#87
20160247379
2016-08-25

Footwear arrangement with battery and anti-theft protection

#88
20160240067
2016-08-18

Multi-modal tracking locator alarm system

#89
20160189516
2016-06-30

Apparatus, method and computer program for monitoring positions of objects

#90
20160063371
2016-03-03

Battery operated device and tag for a battery operated device

#91
20150317897
2015-11-05

Proximity detection system with concurrent RF and magnetic fields

#92
20150222740
2015-08-06

Wireless alerting system for personal area asset supervision

#93
20150213701
2015-07-30

Monitoring inmate movement with RFID

#94
20150194033
2015-07-09

Gun detection system and method to prevent school and business shootings

#95
20150091729
2015-04-02

Systems and methods for protecting retail display merchandise from theft

#96
20150070165
2015-03-12

System and method for tracking assets

#97
20150054627
2015-02-26

Object management system and method

#98
20150029026
2015-01-29

Methods and devices for supervising baggage items

#99
20150015394
2015-01-15

System and method for alerting and tracking with improved confidentiality

#100
20150015370
2015-01-15

Methods, systems, and products for tracking objects

#101
20150002292
2015-01-01

Emergency response and tracking using lighting networks

#102
20140375445
2014-12-25

Proximity detection system and method and collision avoidance system and method using proximity detection

#103
20140333417
2014-11-13

Electronic tag having wristband

#104
20140300473
2014-10-09

Monitoring an object

#105
20140266708
2014-09-18

Security system tracking of remote items using reduced power

#106
20140240088
2014-08-28

Apparatus and method for locating, tracking, controlling and recognizing tagged objects using active RFID technology

#107
20140218189
2014-08-07

Method and apparatus for alerting a user to presence of an item in a vehicle

#108
20140159888
2014-06-12

Event warning system and method thereof

#109
20140125488
2014-05-08

Proximity detection systems and method for internal traffic control

#110
20140055276
2014-02-27

System, method and device to interrogate for the presence of objects

#111
20140053185
2014-02-20

In-flight entertainment system with wireless handheld controller and cradle having controlled locking and status reporting to crew

#112
20140028445
2014-01-30

Continuously monitored core temperature sensor and method

#113
20130293377
2013-11-07

System and method for tracking people

#114
20130257587
2013-10-03

Authentication of a terminal by an electromagnetic transponder

#115
20130241732
2013-09-19

Attachment detection

#116
20130141238
2013-06-06

System and method for monitoring restricted areas below bucket trucks, lineworkers on power distribution poles or other elevated loads

#117
20130141217
2013-06-06

Battery operated device and tag for a battery operated tool

#118
20130120145
2013-05-16

Method and device for prevention loss of item and prompt search thereof

#119
20130038432
2013-02-14

System for monitoring items in proximity to a vehicle

#120
20130038320
2013-02-14

Proximity detection system with concurrent RF and magnetic fields

#121
20130027200
2013-01-31

Information processing apparatus, information processing method, program, storage medium, and information processing system

#122
20130002433
2013-01-03

Systems and methods for behavior monitoring and identification

#123
20120326875
2012-12-27

INVISIBLE FENCE FOR A CHILD

#124
20120322380
2012-12-20

LOCALIZED TRACKING OF ITEMS WITH ELECTRONIC LABELS

#125
20120309359
2012-12-06

Method and system for remotely monitoring a user

#126
20120286933
2012-11-15

FIRST RESPONDER TEAM TRACKING SYSTEM AND METHOD

#127
20120268264
2012-10-25

System for alarming upon occurrence of secession of smart key for vehicles

#128
20120268261
2012-10-25

Proximity detection system and method and collision avoidance system and method using proximity detection

#129
20120268244
2012-10-25

Methods, systems and computer program products for anonymous tracking of objects

#130
20120249318
2012-10-04

Proximity detection systems and method for internal traffic control

#131
20120242481
2012-09-27

Apparatus and method for locating, tracking, controlling and recognizing tagged objects using RFID technology

#132
20120234921
2012-09-20

RFID apparel tag for use in industrial processing and post care treatment

#133
20120184305
2012-07-19

Sensory Enhancement Systems and Methods in Personal Electronic Devices

#134
20120176244
2012-07-12

System and method for integrated product protection

#135
20120161961
2012-06-28

User-portable deployable RFID device and system

#136
20120154148
2012-06-21

System and method for tracking people

#137
20120154146
2012-06-21

SYSTEM AND METHOD FOR TRACKING PEOPLE

#138
20120154144
2012-06-21

Sensory enhancement systems and methods in personal electronic devices

#139
20120139721
2012-06-07

Sensory Enhancement Systems and Methods in Personal Electronic Devices

#140
20120112905
2012-05-10

RADIO FREQUENCY IDENTIFICATION SAFETY SYSTEM

#141
20120105232
2012-05-03

Method and System for Remotely Monitoring a User

#142
20120086557
2012-04-12

WIRELESS TERMINAL AND INFORMATION STORAGE METHOD

#143
20120086552
2012-04-12

System for, and method of, monitoring the movement of mobile items

#144
20120086550
2012-04-12

PEDOBAROGRAPHIC BIOMETRIC SYSTEM

#145
20120044072
2012-02-23

Logical floor determination for a wireless device using weighted AP received signal strengths

#146
20110315284
2011-12-29

ARM AND LEG PURSE APPARATUS

#147
20110304464
2011-12-15

Attachment detection method and system

#148
20110304460
2011-12-15

SYSTEM AND METHOD FOR MONITORING GOLF CLUB INVENTORY

#149
20110288938
2011-11-24

INTERACTIVE DISPLAY SYSTEM

#150
20110285506
2011-11-24

SYSTEM AND METHOD FOR TRACKING ITEMS

#151
20110279261
2011-11-17

Event warning system and method thereof

#152
20110273297
2011-11-10

Method and system for identifying missing items

#153
20110234396
2011-09-29

FIRE AND EMERGENCY WARNING AND LOCATOR SYSTEM

#154
20110195701
2011-08-11

System and method for mobile monitoring of non-associated tags

#155
20110148625
2011-06-23

Method and system of providing location-based alerts for tracking personal items

#156
20110121965
2011-05-26

Sensory Enhancement Systems and Methods in Personal Electronic Devices

#157
20110109434
2011-05-12

Tracking passengers on cruise ships

#158
20110095866
2011-04-28

Locator inventory system

#159
20110084840
2011-04-14

Key device for monitoring systems

#160
20110084807
2011-04-14

System, method and device to interrogate for the presence of objects

#161
20110080262
2011-04-07

LOCATION FINDER SYSTEM

#162
20100328046
2010-12-30

Authentication of a terminal by an electromagnetic transponder

#163
20100295665
2010-11-25

Object management system and method

#164
20100283602
2010-11-11

System and method for monitoring relative position of moving object

#165
20100277322
2010-11-04

Transmit-only electronic article surveillance system and method

#166
20100238042
2010-09-23

DENTAL FIXTURE WITH ANTI-LOST SYSTEM

#167
20100188226
2010-07-29

DEVICE CONFIGURATION MANAGER AND ABSENT CONNECTION ALERTER

#168
20100141455
2010-06-10

ANTI-THEFT DEVICE

#169
20100141446
2010-06-10

METHOD AND SYSTEM FOR AUTOMATICALLY TRACKING AND CONTROLLING THE USAGE OF REMOVABLE HARD DRIVES

#170
20100141427
2010-06-10

PORTABLE ELECTRONIC SECURITY DEVICE

#171
20100134288
2010-06-03

Method of reducing power consumption of a radio badge in a boundary detection localization system

#172
20100117838
2010-05-13

System for remotely monitoring a user

#173
20100117821
2010-05-13

CHILD MONITORING SYSTEM

#174
20100090831
2010-04-15

Electronic device with radio frequency identification (RFID) technology

#175
20100066531
2010-03-18

Locator inventory system

#176
20100039259
2010-02-18

System and method for boarding area security

#177
20100026513
2010-02-04

Logical floor determination for a wireless device using weighted AP received signal strengths

#178
20100026495
2010-02-04

System for, and method of, monitoring the movement of mobile items

#179
20100007500
2010-01-14

DETECTOR SYSTEM FOR DETECTING CARGO ITEMS FALLING DURING TRANSPORT AND METHOD FOR RETRIEVAL THEREOF

#180
20090322537
2009-12-31

RFID-based asset security and tracking system, apparatus and method

#181
20090309732
2009-12-17

Wireless tracking system and method with tag removal detection

#182
20090295593
2009-12-03

Passage alert system and method using RFID

#183
20090289794
2009-11-26

Method and system for monitoring one or more objects by electronic device

#184
20090256715
2009-10-15

Electromagnetic field adjustment for proximity detection

#185
20090160647
2009-06-25

RFID tag detection method and system

#186
20090153333
2009-06-18

Entry and exit confirmation system and method

#187
20090128300
2009-05-21

WIRELESS DEVICE WITH AN RFID INTERROGATOR

#188
20090121875
2009-05-14

Method and system for locating a dependent

#189
20090111484
2009-04-30

Methods, systems, and products for tracking objects

#190
20090109049
2009-04-30

Interactive magnetic marker field for safety systems and complex proximity warning system

#191
20090102638
2009-04-23

System, method, and apparatus for capturing telematics data with an active RFID tag

#192
20090085873
2009-04-02

Sensory enhancement systems and methods in personal electronic devices

#193
20090085741
2009-04-02

METHODS AND APPARATUS FOR LOCATING AN RFID READER USING RFID TAGS

#194
20090058651
2009-03-05

Methods, computer program products, terminals and systems for providing location reporting of RFID enabled moveable objects

#195
20090051566
2009-02-26

System, method, and apparatus for collecting telematics and sensor information in a delivery vehicle

#196
20090021381
2009-01-22

Danger determining device, method, danger notifying device, and program for determining danger based on identification information of a person in a watched environment and identification information of an article in the watched environment

#197
20090015410
2009-01-15

Wireless asset monitoring and security system

#198
20090009327
2009-01-08

System and apparatus for integrated location detection and wireless communications

#199
20080284600
2008-11-20

Location management for radio frequency identification readers

#200
20080238657
2008-10-02

Method for monitoring a group of objects and associated arrangement

#201
20080204554
2008-08-28

Electronic article surveillance system

#202
20080167896
2008-07-10

System for, and method of, monitoring the movement of mobile items

#203
20080157970
2008-07-03

Coarse and fine location for tagged items

#204
20080096649
2008-04-24

Security zones for casino gaming

#205
20080061992
2008-03-13

System for remotely monitoring a user

#206
20080042800
2008-02-21

Wireless asset monitoring and security system using user identification tags

#207
20080024303
2008-01-31

Systems and methods for identifying missing items

#208
20080018471
2008-01-24

Alarm systems, wireless alarm devices, and article security methods

#209
20080018470
2008-01-24

Methods, systems, and products for tracking objects

#210
20080012711
2008-01-17

Systems and methods for identifying lost or stolen devices

#211
20080001755
2008-01-03

Wireless asset monitoring and security system

#212
20080001730
2008-01-03

Apparatus and method to detect the presence of a child in a vehicle

#213
20070285245
2007-12-13

RFID system and method for localizing and tracking a moving object with an RFID tag

#214
20070257796
2007-11-08

Wireless picocellular RFID systems and methods

#215
20070252697
2007-11-01

Method and system for identifying missing items

#216
20070247282
2007-10-25

System, method, and apparatus for capturing telematics data with an active RFID tag

#217
20070241902
2007-10-18

Radio frequency identification (RFID) systems and methods

#218
20070222588
2007-09-27

Personal property security device

#219
20070194924
2007-08-23

Electronic fence mode alert system and method

#220
20070194923
2007-08-23

Spin around direction and distance locator

#221
20070159332
2007-07-12

Using RFID to prevent or detect falls, wandering, bed egress and medication errors

#222
20070150460
2007-06-28

Systems and methods for providing victim location information during an emergency situation

#223
20070046461
2007-03-01

Dentally mounted RFID security device and method of using the same

#224
20070040693
2007-02-22

Method and system for locating a dependent

#225
20070040671
2007-02-22

Method and system for locating a dependent

#226
20070035397
2007-02-15

RFID asset management method and system for vehicles

#227
20070030142
2007-02-08

Protection system of a work station by network-centralised management

#228
20060267762
2006-11-30

Protection against loss or theft of identification badges and other items

#229
20060267575
2006-11-30

Theft prevention device for automotive vehicle service centers

#230
20060232398
2006-10-19

System for personal possessions security

#231
20060208857
2006-09-21

Use of rfid tags and readers to automate real time alert signals in a security system

#232
20060187045
2006-08-24

Mobile locator system and method with wander management

#233
20060187029
2006-08-24

Security zones for casino gaming

#234
20060181411
2006-08-17

System for, and method of, monitoring the movements of mobile items

#235
20060164237
2006-07-27

Method and system for locating a dependent

#236
20060152368
2006-07-13

Combination ID/tag holder

#237
20060132308
2006-06-22

Lost item locater

#238
20060132300
2006-06-22

System for monitoring a person's location in a defined area

#239
20060102718
2006-05-18

Filing security system and article security system

#240
20060092072
2006-05-04

Self-locating devices via highly directional RFID tags in controlled location

#241
20060092028
2006-05-04

Identification band using shorting wire for enabling/disabling an RFID transponder contained thereon

#242
20060087438
2006-04-27

Method and system for preventing unauthorized removal and use of an RFID apparatus

#243
20060055564
2006-03-16

System, method, and apparatus for capturing telematics data with an active RFID tag

#244
20060055538
2006-03-16

Method and system for finding lost or stolen objects

#245
20060055537
2006-03-16

Methods, identification tags and computer program products for automated location and monitoring of mobile devices

#246
20060055536
2006-03-16

Methods, systems and computer program products for automated location and monitoring of mobile device

#247
20060033623
2006-02-16

RFID multiple range method and system

#248
20060022832
2006-02-02

Tagging systems

#249
20060022823
2006-02-02

Systems and methods for zone security

#250
20060001542
2006-01-05

System for monitoring mobile personal items

#251
20050285739
2005-12-29

Proximity management system and method using radio-frequency identification tags

#252
20050280535
2005-12-22

Systems and methods for tagging and identification

#253
20050270158
2005-12-08

RFID system for locating people, objects and things

#254
20050262212
2005-11-24

Targeted messaging system and related methods

#255
20050247775
2005-11-10

Methods and apparatus of meshing and hierarchy establishment for tracking devices

#256
20050237196
2005-10-27

Article management system and method

#257
20050225427
2005-10-13

Finding location and ranging explorer

#258
20050219052
2005-10-06

Infant monitoring system and method

#259
20050203683
2005-09-15

System, method, and apparatus for collecting telematics and sensor information in a delivery vehicle

#260
20050200478
2005-09-15

Instantaneous mobile access to all pertinent life events

#261
20050134459
2005-06-23

Loss prevention system

#262
20050132047
2005-06-16

Targeted messaging system and related methods

#263
20050128083
2005-06-16

Wireless asset monitoring and security system

#264
20050110639
2005-05-26

Wireless asset monitoring and security system using user identification tags

#265
20050104956
2005-05-19

Imaging device, information storage server, article identification apparatus and imaging system

#266
20050101250
2005-05-12

Mobile care-giving and intelligent assistance device

#267
20050099299
2005-05-12

Tracking, presence verification and locating features as part of a security system

#268
20050099293
2005-05-12

Object locator feature as part of a security system

#269
20050093705
2005-05-05

Subscription system for monitoring user well being

#270
20050071879
2005-03-31

Smart space appliance control using a mobile communications device

#271
20050068168
2005-03-31

Personal articles tracking

#272
20050062637
2005-03-24

Multimedia controller

#273
20050060088
2005-03-17

Pedestrian navigation and spatial relation device

#274
20050057361
2005-03-17

Remote surveillance and assisted care using a mobile communication device

#275
20050057357
2005-03-17

Daily task and memory assistance using a mobile device

#276
20050038860
2005-02-17

Portable device medical assistant

#277
20050035854
2005-02-17

Home management and personal assistance using a mobile communication device

#278
20050024201
2005-02-03

Method for locating an asset

#279
20050005874
2005-01-13

Electronic tether for portable objects

#280
17488857
2023-08-15

Charge and guardian safety system

#281
16853370
2022-04-12

System and process for distributed network of redundant central stations

#282
16687604
2020-10-06

Low-power person tracking system that uses magnetic signals

#283
16422991
2020-02-25

System and method for locating a patient

#284
16414531
2019-11-19

Low-power, secure passenger tracking system

#285
16389526
2020-04-21

System and process for distributed network of redundant central stations

#286
16127169
2019-06-11

System and method for locating a patient

#287
15984676
2019-04-30

System and process for distributed network of redundant central stations

#288
15590147
2018-05-22

System and process for distributed network of redundant central stations

#289
15426385
2018-03-06

Lost child notification system

#290
15366188
2018-02-27

Method of increasing sensing device noticeability upon low battery level

#291
15182194
2018-11-13

Method and system for remotely monitoring a user

#292
14449747
2015-10-13

Tracking passengers on cruise ships