CA2285930A1 - A method of localizing storage devices, a monitoring system for localizing storage devices for goods, and use of the monitoring equipment - Google Patents
A method of localizing storage devices, a monitoring system for localizing storage devices for goods, and use of the monitoring equipment Download PDFInfo
- Publication number
- CA2285930A1 CA2285930A1 CA002285930A CA2285930A CA2285930A1 CA 2285930 A1 CA2285930 A1 CA 2285930A1 CA 002285930 A CA002285930 A CA 002285930A CA 2285930 A CA2285930 A CA 2285930A CA 2285930 A1 CA2285930 A1 CA 2285930A1
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- Canada
- Prior art keywords
- satellite
- near field
- data processing
- connection
- antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
- G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0018—Transmission from mobile station to base station
- G01S5/0027—Transmission from mobile station to base station of actual mobile position, i.e. position determined on mobile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S2205/001—Transmission of position information to remote stations
- G01S2205/002—Transmission of position information to remote stations for traffic control, mobile tracking, guidance, surveillance or anti-collision
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S2205/001—Transmission of position information to remote stations
- G01S2205/008—Transmission of position information to remote stations using a mobile telephone network
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The present invention relates to a method and a monitoring system, in particular for use in the monitoring of containers (4). Each container has a radio connection to positioning satellites of the GPS type (5), the SatCom type (6) as well as near field communications equipment from which data may be transferred to a data processing unit. Thus, according to the invention several possible radio connections are provided between the individual near filed communications equipment, it being first checked whether a connection can be established to the position satellite, and if this is not possible, it is attempted to establish a radio connection to the communications satellite. If this cannot be done either, then a radio connection is established to another near field communications equipment. The containers can hereby be monitored and tracked currently if for some reason they loose a radio connection. If the containers are placed at particularly difficult places, an embodiment of the invention comprises near field communications equipment which is not placed on any container and which can communicate with the containers and with the satellites.
Description
A method of localizing storage devices, a monitoring sys-tem for localizing storage devices for goods, and use of the monitoring equipment The invention relates to a method of localizing storage devices, e.g. containers, where each container is equipped with a data processing unit programmed to try to position the unit concerned at determined intervals by establishing a connection to a positioning satellite, and where each container is moreover equipped such that a message on observed positions may be emitted via a commu-nications satellite.
The invention moreover relates to a monitoring system for localizing storage devices for goods, e.g. containers, where each container is also equipped with a near field radio system which enables communication between the data processing units in the individual containers and between the containers and near field radio systems on yards, ships, trains or other transporting or storing units.
Finally, the invention relates to uses of the method and the monitoring system.
US Patent No. 5 5f5 858 discloses a localization system for use in connection with the monitoring of containers comprising a group of containers which are e.g. stored.
Each container has communications equipment which con-sists of a satellite communications device and a near field communications device. The satellite and near field communications devices are capable of communicating with each other so that an arbitrary container can communicate its position directly via other containers to a GPS posi-tioning system, or indirectly via a connection to an in-terrogator.
The invention moreover relates to a monitoring system for localizing storage devices for goods, e.g. containers, where each container is also equipped with a near field radio system which enables communication between the data processing units in the individual containers and between the containers and near field radio systems on yards, ships, trains or other transporting or storing units.
Finally, the invention relates to uses of the method and the monitoring system.
US Patent No. 5 5f5 858 discloses a localization system for use in connection with the monitoring of containers comprising a group of containers which are e.g. stored.
Each container has communications equipment which con-sists of a satellite communications device and a near field communications device. The satellite and near field communications devices are capable of communicating with each other so that an arbitrary container can communicate its position directly via other containers to a GPS posi-tioning system, or indirectly via a connection to an in-terrogator.
Another monitoring system is known from the applicant's own International Patent Application WO 96/16387.
This known monitoring system, which is used e.g. in con-s nection with the monitoring of containers, in principle consists of a communications system in which exchange of information with the surrounding world takes place via communications satellites, e.g. of the GPS type. Each container has a radio connection to a data processor sys-tem. Each container additionally has a data connection to a tag, which cooperates with the radio connection of the container in such a manner that if the data connection of the container is removed from the container, a connection to a satellite will be established via the data processor system.
The system operates fully satisfactorily as long as there is a good connection between the satellite and the data processor system. However, the data processor system re-quires that there is a line of sight between the data processor system and the satellite. This cannot always be satisfied, e.g. if containers and the data processor sys-tem connected to it are stored on the bottom of a ship or on a train which drives through a tunnel. Furthermore, it is a drawback that if a radio connection fails, it may be difficult to find the reason for the failure.
Accordingly, an object of the invention is to provide a system which, in an even faster manner, is capable of monitoring storage devices for goods, e.g. containers, and of providing an indication of what is wrong if a con-tainer cannot be positioned.
The object of the invention is achieved by a monitoring system of the type defined in the introductory portion of claim 1 which is characterized in that the data process-ing unit in each container will individually try to de-termine its position and communicate information on this via a communications satellite, and which, when no con-nection to the positioning satellite can be established, is adapted to transfer data to a communications satellite containing the information that a connection to the posi-tioning satellite cannot be established.
When contact to the communications satellite cannot be established, the data processing unit, as stated in claim 2, activates the near field radio system and tries to connect to another near field radio which is capable of creating or has contact to the positioning and communica-tions satellite via a data processing unit or in another manner. It is ensured hereby that all containers posi-tioned within the overall operating range of the near field radio system can position and communicate their po-sitions to the surrounding world.
The individual containers can hereby transfer data be-tween each other and to the surroundings via the radio connections, thereby achieving a greater certainty that the desired positioning of the individual container can be established, and information on this can be applied and enable tracking of any containers with faulty equip-ment for the satellite-based positioning and communica-tion.
It is moreover expedient, as stated in claim 3, that pre-cisely as many radio connections are established between near field communications equipment on a plurality of storage devices as are sufficient to set up radio connec-tion to the positioning satellite and the communications satellite, respectively.
This known monitoring system, which is used e.g. in con-s nection with the monitoring of containers, in principle consists of a communications system in which exchange of information with the surrounding world takes place via communications satellites, e.g. of the GPS type. Each container has a radio connection to a data processor sys-tem. Each container additionally has a data connection to a tag, which cooperates with the radio connection of the container in such a manner that if the data connection of the container is removed from the container, a connection to a satellite will be established via the data processor system.
The system operates fully satisfactorily as long as there is a good connection between the satellite and the data processor system. However, the data processor system re-quires that there is a line of sight between the data processor system and the satellite. This cannot always be satisfied, e.g. if containers and the data processor sys-tem connected to it are stored on the bottom of a ship or on a train which drives through a tunnel. Furthermore, it is a drawback that if a radio connection fails, it may be difficult to find the reason for the failure.
Accordingly, an object of the invention is to provide a system which, in an even faster manner, is capable of monitoring storage devices for goods, e.g. containers, and of providing an indication of what is wrong if a con-tainer cannot be positioned.
The object of the invention is achieved by a monitoring system of the type defined in the introductory portion of claim 1 which is characterized in that the data process-ing unit in each container will individually try to de-termine its position and communicate information on this via a communications satellite, and which, when no con-nection to the positioning satellite can be established, is adapted to transfer data to a communications satellite containing the information that a connection to the posi-tioning satellite cannot be established.
When contact to the communications satellite cannot be established, the data processing unit, as stated in claim 2, activates the near field radio system and tries to connect to another near field radio which is capable of creating or has contact to the positioning and communica-tions satellite via a data processing unit or in another manner. It is ensured hereby that all containers posi-tioned within the overall operating range of the near field radio system can position and communicate their po-sitions to the surrounding world.
The individual containers can hereby transfer data be-tween each other and to the surroundings via the radio connections, thereby achieving a greater certainty that the desired positioning of the individual container can be established, and information on this can be applied and enable tracking of any containers with faulty equip-ment for the satellite-based positioning and communica-tion.
It is moreover expedient, as stated in claim 3, that pre-cisely as many radio connections are established between near field communications equipment on a plurality of storage devices as are sufficient to set up radio connec-tion to the positioning satellite and the communications satellite, respectively.
As mentioned, the invention also relates to a monitoring system.
This monitoring system is characterized in that each storage unit, container, is provided with equipment which, in combination, enables positioning and tracking of the individual unit, also when it is not possible to create contact to the satellites concerned for position-ing and communication because of functional restraints or because parts of the equipment are out of order.
As stated in claim 5, each container is equipped with a data processing unit which is programmed to initiate a procedure for producing ID as well as for determining the position and time of it and for presenting this in-formation via communication with satellite or near field radio system.
In order to be able to identify the individual containers additionally, it is expedient, as stated in claim 6, that the container which establishes a connection to one or more other containers is adapted to produce its own iden-tification data.
In order to additionally ensure careful monitoring of the containers, it is an advantage, as stated in claim 7, that each container tries to set up a connection to the positioning satellite at suitable intervals.
For use of the monitoring equipment according to the in-vention in connection with locations where no container can establish a connection to a satellite, it is an ad-vantage, as stated in claim 8, that the near field commu-nications equipment of the containers is in communication with further near field communications equipment which is not positioned on the containers.
As mentioned, the invention also relates to uses of the monitoring system according to the invention.
This monitoring system is characterized in that each storage unit, container, is provided with equipment which, in combination, enables positioning and tracking of the individual unit, also when it is not possible to create contact to the satellites concerned for position-ing and communication because of functional restraints or because parts of the equipment are out of order.
As stated in claim 5, each container is equipped with a data processing unit which is programmed to initiate a procedure for producing ID as well as for determining the position and time of it and for presenting this in-formation via communication with satellite or near field radio system.
In order to be able to identify the individual containers additionally, it is expedient, as stated in claim 6, that the container which establishes a connection to one or more other containers is adapted to produce its own iden-tification data.
In order to additionally ensure careful monitoring of the containers, it is an advantage, as stated in claim 7, that each container tries to set up a connection to the positioning satellite at suitable intervals.
For use of the monitoring equipment according to the in-vention in connection with locations where no container can establish a connection to a satellite, it is an ad-vantage, as stated in claim 8, that the near field commu-nications equipment of the containers is in communication with further near field communications equipment which is not positioned on the containers.
As mentioned, the invention also relates to uses of the monitoring system according to the invention.
5 These uses are defined in claims 10 - 12.
The invention will now be explained more fully with ref-erence to an example shown in the drawing, in which fig. 1 shows examples of the storage of containers under various conditions, fig. 2 shows a basic sketch of the mode of operation of the monitoring system according to the invention, and fig. 3 shows a further embodiment of the mode of opera-tion of the system according to the invention.
In fig. 1, 5 designates a GPS positioning satellite for providing position data, while 6 designates a SatCom com-munications satellite for providing communications data.
As will be seen in the figure, the satellites 5, 6 can establish data transfer to a truck 1, a containership 2 with several containers 4, or a train 3 with carriages 12. Each container has an antenna capable of reading in-formation from a tag which is positioned on an underlying container, e.g. as shown on the ship 2, at the reference numeral 10. This system is described in detail in the previously mentioned WO application. In brief, the mode of operation of the system is such that if one of the containers is unlawfully removed, then a radio connection between the bridge of the ship and the container will en-sure that a connection is set up to e.g. a police author-ity. Fig. 1 moreover shows a train with a plurality of carriages 12, each of which communicates with a locomo-tive, which in turn communicates with the satellites 5, 6. Finally, fig. 1 shows a plurality of containers which are stored at a site where they are in radio connection with a stationary data connection unit 9 which communi-cates with the satellites 5, 6.
In fig. 2, 5 and 6 again designate the GPS positioning satellite and the SatCom communications satellite, re-spectively. The figure also shows a plurality of contain-ers 4 which are placed in a space schematically shown at 14, which might e.g. be on board a ship. It is moreover shown schematically that the satellites 5, 6 are in radio connection with the containers which are designated by 4C
and 4I. All the containers are moreover equipped with a positioning satellite system, a communications satellite system, and near field communications equipment, which, however, are not shown in detail in the figure. The near field communications system is capable of establishing a connection between the individual containers. As a result of this, if e.g. the container 4A is to be able to commu-nicate with the satellites 5, 6, then near field communi-cation will be established from the container 4A via 4B
to 4C, which communicates with the satellites 5, 6. The position of the container 4A may hereby be determined reasonably accurately. To make the system even more flexible, it is possible to set up relay stations 16 so that e.g. a connection from the container 4D may be es-tablished via the radio connections 17 and the relay sta-tion 16, further via the radio connection 17A and the container 4I, which, as mentioned, communicates with the satellites 5, 5. The same connection might be set up be-tween the containers 4D and 4I, as shown.
It is noted that each container, if there is a line of sight, has the possibility of communicating directly with the positioning satellite as well as the communications satellite.
The invention will now be explained more fully with ref-erence to an example shown in the drawing, in which fig. 1 shows examples of the storage of containers under various conditions, fig. 2 shows a basic sketch of the mode of operation of the monitoring system according to the invention, and fig. 3 shows a further embodiment of the mode of opera-tion of the system according to the invention.
In fig. 1, 5 designates a GPS positioning satellite for providing position data, while 6 designates a SatCom com-munications satellite for providing communications data.
As will be seen in the figure, the satellites 5, 6 can establish data transfer to a truck 1, a containership 2 with several containers 4, or a train 3 with carriages 12. Each container has an antenna capable of reading in-formation from a tag which is positioned on an underlying container, e.g. as shown on the ship 2, at the reference numeral 10. This system is described in detail in the previously mentioned WO application. In brief, the mode of operation of the system is such that if one of the containers is unlawfully removed, then a radio connection between the bridge of the ship and the container will en-sure that a connection is set up to e.g. a police author-ity. Fig. 1 moreover shows a train with a plurality of carriages 12, each of which communicates with a locomo-tive, which in turn communicates with the satellites 5, 6. Finally, fig. 1 shows a plurality of containers which are stored at a site where they are in radio connection with a stationary data connection unit 9 which communi-cates with the satellites 5, 6.
In fig. 2, 5 and 6 again designate the GPS positioning satellite and the SatCom communications satellite, re-spectively. The figure also shows a plurality of contain-ers 4 which are placed in a space schematically shown at 14, which might e.g. be on board a ship. It is moreover shown schematically that the satellites 5, 6 are in radio connection with the containers which are designated by 4C
and 4I. All the containers are moreover equipped with a positioning satellite system, a communications satellite system, and near field communications equipment, which, however, are not shown in detail in the figure. The near field communications system is capable of establishing a connection between the individual containers. As a result of this, if e.g. the container 4A is to be able to commu-nicate with the satellites 5, 6, then near field communi-cation will be established from the container 4A via 4B
to 4C, which communicates with the satellites 5, 6. The position of the container 4A may hereby be determined reasonably accurately. To make the system even more flexible, it is possible to set up relay stations 16 so that e.g. a connection from the container 4D may be es-tablished via the radio connections 17 and the relay sta-tion 16, further via the radio connection 17A and the container 4I, which, as mentioned, communicates with the satellites 5, 5. The same connection might be set up be-tween the containers 4D and 4I, as shown.
It is noted that each container, if there is a line of sight, has the possibility of communicating directly with the positioning satellite as well as the communications satellite.
Fig. 3 shows a variant of the embodiment of fig. 2, a near field communications device 18 being established here, which is not positioned on a container, but has a good connection to the satellites 5, 6. Such a set-up may be useful if e.g. the containers are placed so deep down in a ship that is impossible for any satellite communica-tions equipment of any of the containers to establish a connection. Of course, more near field communications de-vices of the type 18 than shown in the drawing may be set up .
As will be appreciated, the invention provides a system which is capable of monitoring any container in a very safe manner no matter where in the world it is located.
The principles of the invention have been explained par-ticularly in connection with containel;s, but basically they may be used in connection with all movable objects where security against theft and vandalism is desired.
As will be appreciated, the invention provides a system which is capable of monitoring any container in a very safe manner no matter where in the world it is located.
The principles of the invention have been explained par-ticularly in connection with containel;s, but basically they may be used in connection with all movable objects where security against theft and vandalism is desired.
Claims (10)
1. A method of localizing storage devices, e.g. containers (4), wherein each storage device is equipped with a data processing unit programmed to try to position the unit concerned at determined intervals by establishing a connection to a positioning satellite, and further equipped with a near field radio being part of a near field radio, system comprising at least two storage devices, and wherein each storage device is moreover equipped such that a message on observed positions may be emitted via a communications satellite, character ized in that the data processing unit in each container will individually try to determine its position and communicate information on this via a communications satellite, and which, when connection to the positioning satellite cannot be established, is adapted to transfer data to a communications satellite containing the information that a connection to the positioning satellite cannot be established, and in that the data processing unit activates the near field radio system and tries to connect to another near field radio which is capable of creating or has contact to the positioning and communications satellite via one or more data processing units, when contact to the communications satellite cannot be established.
2. A method according to claim 1, characterized in that precisely as matey radio connections between near field communications devices on a plurality of storage devices are established as are necessary to set up a radio connection to the positioning satellite and the communications satellite, respectively.
3. A monitoring system for localizing storage devices for goods, e.g. containers (4), wherein each storage device is equipped with a data processing unit connected to a first antenna, a second antenna, and a third antenna, wherein the first antenna is adapted to try to connect to a positioning satellite for receiving positional information, the second antenna is adapted to communicate with a near field radio system which enables communication between the data processing units of each storage device, the third antenna is adapted to communicate information to a communication satellite, and wherein the data processing unit is adapted to produce a unique ID number and to determine the time and obtain positional information via said first antenna, characterized in that said data processing unit is adapted to transmit information containing positional information, ID number and time via said third antenna, and in that said data processing unit, when no connection to the positioning satellite can be established, is further adapted to transmit information, indicating that a connection to the positioning satellite cannot be established, via said third, antenna, and in that said data processing unit is further adapted to activate said near field radio system and try to connect to another near field radio system which is capable of creating or has contact to the positioning and communications satellites via one or more data processing units when a connection to the positioning satellite cannot be established, and in that said data processing unit is further adapted to test for one or more other data processing units via said second antenna.
4. A monitoring system according to any one of the preceding claims, characterized in that each storage device tries to set up a connection to the positioning satellite at suitable predetermined intervals.
5. A monitoring system according to any one of the preceding claims, characterized in that said second antenna is further adapted to communicate with at least one central near field radio system.
6. A monitoring system according to claim 6, charac terized in that said central near field radio system is located on yards, ships, trains or ether transporting or storing units.
7. A monitoring system according to any one of the preceding claims, characterized in that the positioning satellite is formed by a GPS system (Global Positioning System) (5) and the communications satellite (Satellite, Communications System) (6) is formed by a Sat-Com system, while the near field communications equipment is an SR (Short Range) system.
8. Use of the method and the storage device according to any one of claims 1-9 on a containership (21).
9. Use of the method and the monitoring system according to any one of claims 1-9 on a goods train (3).
10. Use of the method and the storage device according to any one of claims 1-9 oh a storage site for containers.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK0386/97 | 1997-04-07 | ||
| DK38697 | 1997-04-07 | ||
| PCT/DK1998/000144 WO1998048396A1 (en) | 1997-04-07 | 1998-04-07 | A method of localizing storage devices, a monitoring system for localizing storage devices for goods, and use of the monitoring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2285930A1 true CA2285930A1 (en) | 1998-10-29 |
Family
ID=8092924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002285930A Abandoned CA2285930A1 (en) | 1997-04-07 | 1998-04-07 | A method of localizing storage devices, a monitoring system for localizing storage devices for goods, and use of the monitoring equipment |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0974136A1 (en) |
| JP (1) | JP2002510269A (en) |
| CN (1) | CN1255222A (en) |
| AU (1) | AU722440B2 (en) |
| BR (1) | BR9808490A (en) |
| CA (1) | CA2285930A1 (en) |
| WO (1) | WO1998048396A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8223730B2 (en) | 2005-01-25 | 2012-07-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | System and method for the monitoring of grouped objects |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050046841A (en) * | 2003-11-14 | 2005-05-19 | 2-트랙 리미티드 | System for monitering containers |
| JP4378643B2 (en) * | 2005-08-01 | 2009-12-09 | ソニー株式会社 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, COMMUNICATION METHOD, AND PROGRAM |
| CN100337090C (en) * | 2005-10-13 | 2007-09-12 | 上海交通大学 | Grading quick positioning method for automatic manless stack field lifting slings-and container in truck |
| US8095147B2 (en) * | 2006-04-28 | 2012-01-10 | Sony Ericsson Mobile Communications Ab | Multi-device location monitoring system |
| US20080020724A1 (en) * | 2006-07-19 | 2008-01-24 | John Robert Orrell | Establishing a data link between stacked cargo containers |
| EP1895456A1 (en) * | 2006-08-31 | 2008-03-05 | Cargo Trax Oy | Container unit, mesh network and system reporting container events |
| CN101604462B (en) * | 2008-06-10 | 2011-08-31 | 关贸网路股份有限公司 | Counter monitoring system and electric counter lock |
| US7911382B2 (en) | 2008-09-15 | 2011-03-22 | Sony Ericsson Mobile Communications Ab | System and method of transferring location assistance information between electronic devices |
| US8456302B2 (en) | 2009-07-14 | 2013-06-04 | Savi Technology, Inc. | Wireless tracking and monitoring electronic seal |
| EP2467812A4 (en) | 2009-08-17 | 2014-10-22 | Deal Magic Inc | Contextually aware monitoring of assets |
| US8314704B2 (en) * | 2009-08-28 | 2012-11-20 | Deal Magic, Inc. | Asset tracking using alternative sources of position fix data |
| US8068011B1 (en) | 2010-08-27 | 2011-11-29 | Q Street, LLC | System and method for interactive user-directed interfacing between handheld devices and RFID media |
| US10250300B1 (en) * | 2018-06-27 | 2019-04-02 | Aktiebolaget Skf | Wireless condition monitoring sensor with near field communication insection hardware |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565858A (en) * | 1994-09-14 | 1996-10-15 | Northrop Grumman Corporation | Electronic inventory system for stacked containers |
| TW303444B (en) * | 1994-11-22 | 1997-04-21 | Traffic Object Supervision Systems | |
| US5517199A (en) * | 1995-05-11 | 1996-05-14 | Aerodata Corporation | Emergency locator device |
| US5588005A (en) * | 1995-06-07 | 1996-12-24 | General Electric Company | Protocol and mechanism for primary and mutter mode communication for asset tracking |
-
1998
- 1998-04-07 CA CA002285930A patent/CA2285930A1/en not_active Abandoned
- 1998-04-07 BR BR9808490-9A patent/BR9808490A/en not_active Application Discontinuation
- 1998-04-07 CN CN98804851.5A patent/CN1255222A/en active Pending
- 1998-04-07 AU AU69188/98A patent/AU722440B2/en not_active Ceased
- 1998-04-07 WO PCT/DK1998/000144 patent/WO1998048396A1/en not_active Application Discontinuation
- 1998-04-07 JP JP54321698A patent/JP2002510269A/en active Pending
- 1998-04-07 EP EP98914843A patent/EP0974136A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8223730B2 (en) | 2005-01-25 | 2012-07-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | System and method for the monitoring of grouped objects |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9808490A (en) | 2000-05-23 |
| CN1255222A (en) | 2000-05-31 |
| AU722440B2 (en) | 2000-08-03 |
| WO1998048396A1 (en) | 1998-10-29 |
| JP2002510269A (en) | 2002-04-02 |
| EP0974136A1 (en) | 2000-01-26 |
| AU6918898A (en) | 1998-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |