WO1999012140A1 - Systeme pour service de transmission de donnees mondial aux fins de commande a distance et de notification d'etat - Google Patents

Systeme pour service de transmission de donnees mondial aux fins de commande a distance et de notification d'etat Download PDF

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Publication number
WO1999012140A1
WO1999012140A1 PCT/NL1997/000505 NL9700505W WO9912140A1 WO 1999012140 A1 WO1999012140 A1 WO 1999012140A1 NL 9700505 W NL9700505 W NL 9700505W WO 9912140 A1 WO9912140 A1 WO 9912140A1
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WO
WIPO (PCT)
Prior art keywords
service system
communications
global data
satellite
communications service
Prior art date
Application number
PCT/NL1997/000505
Other languages
English (en)
Inventor
Shem-Tov Levi
Original Assignee
Sits - Sky Track International Technology & Services N.V.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sits - Sky Track International Technology & Services N.V. filed Critical Sits - Sky Track International Technology & Services N.V.
Priority to CA002302954A priority Critical patent/CA2302954A1/fr
Priority to JP2000509068A priority patent/JP2001515288A/ja
Priority to PCT/NL1997/000505 priority patent/WO1999012140A1/fr
Priority to AU42232/97A priority patent/AU4223297A/en
Priority to IL13484397A priority patent/IL134843A0/xx
Priority to NZ503161A priority patent/NZ503161A/en
Publication of WO1999012140A1 publication Critical patent/WO1999012140A1/fr
Priority to NO20001080A priority patent/NO20001080D0/no

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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

Definitions

  • This invention relates to a global data communications service system for the remote control and status reporting of a platform via an autonomous communications unit.
  • a well known example is that of the need to keep track of the location of cargo containers as they are moved around harbors, docks and ports. It is known that this need can be achieved by mounting on each cargo container a satellite positioning system receiver and a radio transmitter.
  • a well known example of a satellite positioning system is the NAVSTAR Global Positioning System.
  • the satellite positioning system receiver receives signals from satellite positioning system positioning satellites from which it determines the location of the cargo container on which it is mounted.
  • the cargo container's location is transmitted by the radio transmitter to a service center.
  • the container may be important to keep some physical property, for example the temperature of some of the cargo containers, under surveillance.
  • Equally important is the ability to maintain substantially uninterrupted radio communication between a service center and a container so that the former can transmit commands to the container with instructions for, say, lowering the temperature inside the container.
  • a further problem encountered with the remote surveillance of cargo containers is when they are stored undercover, for example in a warehouse. Not only is there no line of sight with the satellite positioning system satellites, but radio communication between a service center and the containers will be impaired if not completely cut off.
  • cargo containers are very often moved from one place to another before reaching their final destination.
  • a container starting off at a loading and packing warehouse may then be transported by truck to a train station and therefrom by train to another train station and therefrom by truck to a port.
  • the container is generally stored before loading onto a ship for transport to another port.
  • the container is generally stored before transportation to its final destination, which may well require a further journey by truck and train.
  • radio transmitter/receiver and the satellite positioning system receiver mounted on a cargo container be able to function for long periods of time over large geographical regions, including different countries and under conditions in which normal radio communications may be impaired if not impossible.
  • a radio transmitter/receiver and satellite positioning system receiver unit mounted on a cargo container be provided with rechargeable batteries, which could then be recharged at every port of call.
  • rechargeable batteries which could then be recharged at every port of call.
  • Both of these solutions are not only inconvenient but also demand having electrical connectors appropriate to the different standards in different countries, not to mention differences in mains voltage values in different countries.
  • status reporting of a platform has been elucidated for a cargo container, it will be apparent that status reporting is not confined to cargo containers and that the problems, drawbacks and requirements referred to with respect to the status reporting of cargo containers may well exist completely or partially also for status reporting of other platforms both mobile and immobile. Furthermore, status reporting of a platform over long periods of time and possibly over large distances is not confined to location values or to the values of physical properties of containers but can also include, for example, reporting the status of an anti-theft device which gives an indication as to whether the platform has been stolen or broken into.
  • a data communications system including a communications device mounted on a platform for reporting the platform's status.
  • the communication device should be able to operate autonomously for long periods of time under varying communication conditions and possibly over large distances .
  • ACCUMULATOR An appliance for storing electrical energy.
  • a batterv. PLATFORM Any structure of interest, stationary or mobile.
  • Mobile platforms include, for example, cars, trains, ships, aircraft and transportable objects such as cargo containers.
  • Stationary platforms include, for example, houses, warehouses, airports and holding yards.
  • SERVICE CENTER A place equipped with processors for processing data and with transmitters and receivers and/or communication channels for transmitting and receiving data and for communicating with various platforms and customers.
  • a global data communications service system for status reporting of anti-theft devices comprising: (i) at least one communications satellite;
  • At least one autonomous dual-purpose communications device electrically connected to at least one multi-functional antenna unit, both mountable on at least one platform, the at least one autonomous dual-purpose communications device capable of receiving status data from at least one anti-theft device mounted on the at least one platform, and capable of communicating with the at least one service center via the at least one communications satellite.
  • the at least one autonomous dual-purpose communications device comprises: a transmitter connected to at least one multi-functional antenna unit for transmitting status data to the at least one service center; a processor, for receiving status data from the at least one anti-theft device and for relaying the status data to the transmitter, the processor capable of operating in a power down mode whereby power consumption of the at least one communications device is reduced during allowed time periods; and a power source connected to the transmitter and the processor for providing electrical power to the transmitter and the processor.
  • the power source comprises at least one battery.
  • the at least one battery is rechargeable.
  • the status data received from the at least one anti- theft device is selected from at least one of the group of data indicative of a triggered at least one anti-theft device and data indicative of a non- triggered at least one anti-theft device.
  • the global data communications service system further comprises a plurality of satellite positioning system satellites and the at least one autonomous dual-purpose communications device is provided with a satellite positioning system satellite signal receiver capable of receiving positioning signals from the plurality of satellite positioning system satellites via the at least one multifunctional antenna unit, and the satellite positioning system satellite signal receiver provides location measurement data indicative of the location thereof.
  • the status data further comprises location measurement data indicative of the location of the at least one autonomous dual-purpose communications device.
  • the at least one service center is capable of transmitting a signal to the at least one communications device contain- ing a command for terminating the power down mode.
  • the at least one autonomous dual-purpose communications device is further provided with a receiver for receiving signals from the at least one service center, via the at least one communications satellite, the received signals containing at least one command for activating the at least one anti-theft device mounted on the at least one platform.
  • the anti-theft device is an alarm system.
  • the anti-theft device is a an immobilizer.
  • the at least one platform is mobile. In accordance with another aspect of the invention, the at least one platform is immobile.
  • the at least one multi-functional antenna unit comprises an antenna capable of transmitting data to the at least one communications satellite. Further if desired, the at least one multi-functional antenna unit comprises an antenna capable of receiving data from the at least one communications satellite.
  • the at least one multi-functional antenna unit comprises an antenna capable of transmitting and receiving data from another at least one multi-functional antenna unit.
  • the at least one multi-functional antenna unit is mounted substantially undetectably on the at least one platform.
  • the at least one autonomous dual-purpose communications device is mounted substantially undetectably on the at least one platform.
  • the at least one anti-theft device is capable of being remotely activated by the at least one service center.
  • the status data is transmitted to the at least one service center only when the at least one service center transmits an appropriate signal to the at least one autonomous dual- purpose communications device.
  • the at least one anti-theft device further comprises a health monitoring device.
  • a global data communications service system for tracking, status reporting and management of mobile platforms' status, comprising:
  • At least one communications satellite (i) at least one communications satellite; (ii) at least one service center; and (iii) at least one autonomous dual-purpose communications device electrically connected to at least one multi-functional antenna unit, both mountable on at least one mobile platform, the at least one autonomous dual-purpose communications device capable of reporting the status of at least a portion of the at least one platform and capable of commu- nicating with the at least one service center via the at least one communications satellite.
  • the at least one autonomous dual-purpose communications device comprises: a transmitter connected to at least one multi-functional antenna unit for transmitting status data to the at least one service center; a processor, for receiving status data from at least one status data measuring device and for relaying the status data to the transmitter, the processor capable of operating in a power down mode whereby power consumption of the at least one autonomous dual-purpose communications device is reduced during allowed time periods; at least one accumulator connected to the transmitter and the processor for providing electrical power to the transmitter and the processor; and charging means for charging the accumulator.
  • the charging means is at least one solar panel. Alternatively if desired, the charging means is an external power source.
  • the status data comprises measurement data selected from at least one of the group of: temperature measurement data, humidity measurement data, fire detector measurement data and smoke detector measurement data.
  • the at least one autonomous dual-purpose communications device is further provided with a receiver connected to the at least one multi-functional antenna for receiving signals from the at least one service center, via the at least one communications satellite.
  • the received signals contain at least one command for causing a modification of the value of a property of at least a portion of the at least one platform.
  • the property is temperature.
  • the property is humidity.
  • the received signals contain at least one command for activating an anti-theft device mounted on the at least one platform.
  • the anti-theft device is an alarm system.
  • the anti-theft device is an immobilizer.
  • the global data communications service system further comprises a plurality of satellite positioning system satellites and the at least one communications device is provided with a satellite positioning system satellite signal receiver.
  • the status data comprises location measurement data of the at least one communications device.
  • the at least one service center is capable of transmitting a signal to the at least one communications device terminating the power down mode.
  • the at least one communications satellite is an INMARSAT satellite.
  • the at least one communications satellite is further capable of transmitting global positioning system data.
  • FIG. 1 shows a schematic illustrative block diagram of the system of the invention
  • Fig. 2 shows an illustrative block diagram showing two antenna units mounted on the same platform
  • FIG. 3 shows an illustrative block diagram of a communications device in accordance with a broad aspect of the invention
  • Fig. 4 shows a perspective view of a cargo container on which is mounted at least two antenna units
  • Fig. 5 shows a perspective view of stacked cargo containers
  • Fig. 6 shows a perspective view of a cargo container in a warehouse.
  • FIG. 1 showing a schematic illustrative block diagram of one embodiment the system of the invention comprising a plurality of communication satellites 10, a plurality of positioning satellites 12, a service center 14 and a multi-function antenna unit 16 electrically connected to an autonomous dual-purpose communications device 18 mounted on a platform 20.
  • multi-function antenna unit 16 comprises a number of antennas each utilized for a specific function, and hence the term "multi- function antenna unit”.
  • autonomous dual-purpose communications device 18 serves both for satellite communications and for communication between two or more autonomous dual-purpose communications devices, and hence the term "dual-purpose communications device".
  • autonomous dual-purpose communications device 18 functions without being electrically connected to an external power source, and hence the term “autonomous".
  • 18 will also be referred to herein simply as “communications device”.
  • 16 will also be referred to herein simply as "antenna unit”.
  • multi-function antenna unit 16 will be mounted on an external surface of platform 20, whereas communications device 18 will be mounted on an interior surface of the platform, preferably not far from the multi-function antenna.
  • the platform is a house, it may be possible build the communications device into an external wall of the house, making it safe from theft. In such circumstances and in others, it may also be preferable to hide the multi-function antenna unit from view by covering it with material substantially transparent to electromagnetic radiation in the operational frequency band of the multi-function antenna.
  • the communicating of data between service center 14 and communications device 18 is via communication satellites 10 either using a direct route "service center - satellite - communications device", if the service center is equipped with satellite communication capability. If on the other hand, service center 14 is not equipped with satellite communication capability then satellite ground station 22 is used in the communication process. That is, there is a terrestrial communications link between service center 14 and satellite ground station 22 and service center communicates with communications device 18 via the indirect route "service center - satellite ground station - satellite - communications device". Under some circumstances, as will be described in greater detail below, data can also be transmitted from one communications device to another before being transmitted to the service center.
  • a well known example of communication satellites 10 are the INMARSAT satellites.
  • the invention is by no means bound to INMARSAT satellites and can be applied to any communication satellites providing local and global communication services.
  • a well known example of positioning satellites 12 are the satellites of the NAVSTAR Global Positioning System, however, the invention is by no means bound to the NAVSTAR Global Positioning System and can be applied to any system of positioning satellites (see, e.g., Understanding satellite positioning system Principles and Applications, Editor E. D. Kaplan, Artech House, 1996).
  • the communication satellites 10 are shown as being separate from the positioning satellites 12, the case in which one set of satellites serves both as communications and positioning satellites is not ruled out.
  • Fig. 2 shows an example of two antenna units 16' and 16" mounted on the same platform 20, both electrically connected (the electrical connections are not shown) to the same communications device 18.
  • a platform can have any number of antenna units mounted on it.
  • the various antenna units may, but not necessarily, be connected to the same communications device.
  • Communications device 18 comprises a processor 24 connected to a status measurement device, not shown.
  • the status measurement device is not part of the communications device but is mounted on, or in, the platform under surveillance and provides status data pertaining to a state of the platform, or a portion of the platform.
  • Nonlimiting examples of status data are temperature or humidity measurements taken inside the platform.
  • Other examples are data pertaining to the state of smoke, fire or anti-theft detectors, wherein the data would typically comprise of one of two possible signals, one representing non-activation of the detector and the other representing activation of the detector.
  • Nonlimiting examples of status measurement devices are thermometers, or measuring temperature, hygrometers for measuring humidity, counters for measuring flow and accelerometers for measuring shock.
  • Processor 24 is connected to transmitter/receiver 26 which, as will be described in more detail below, may comprise just a transmitter for transmitting status data, via multi-function antenna 28, to a service center and may also comprise several transmitters and receivers, depending on the application. Accordingly, although shown as one antenna, multi-function antenna 28 may comprise a number of antennas that are preferably packaged as a single unit.
  • Processor 24 and transmitter/receiver 26 are powered by accumulator 30, which is capable of being charged by solar panel 31.
  • Solar panel 31 is preferably housed in antenna unit 16. However, solar panel 31 is optional and in some circumstances, when non-detection of the antenna unit is important, it is preferable to not to use a solar panel. If a solar panel is not used it is preferable to replace accumulator 30 by rechargeable batteries.
  • the data transmission by communications device 18 can be performed continuously or intermittently.
  • processor 24 is preferably programmed in a power conservation mode.
  • a power conservation mode consider the case in which the processor allows continuous transmission of data when the solar panel receives solar radiation and therefore recharges the accumulator, whereas it intermittently shuts done the transmitter when the accumulator is not being recharged.
  • the processor itself does not, of course, shut down, but powers down to a minimum required power allowing it to power up when required.
  • transmitter/receiver 26 not only transmits data but is also capable of receiving data.
  • multi-function antenna 28 comprises an antenna for receiving satellite signals as well as an antenna for transmitting signals to satellites.
  • one communications device is capable of communicating with another communicating device.
  • transmitter/receiver 26 also comprises components for terrestrial the transmission and reception of terrestrial communications and multi-function antenna 28 further comprises appropriate terrestrial communications antennas.
  • transmitter/receiver 26 is also capable of receiving satellite positioning system signals from satellite positioning system satellites.
  • multi-function antenna 28 further comprises an antenna for receiving satellite positioning system satellite signals.
  • communications device 18 is mounted on a cargo container and wherein the status data is the measured temperature within a refrigerated region inside the container.
  • the temperature within the refrigerated region is measured by a suitable temperature measuring device and the measured temperature values over a given period of time are communicated to processor 24 and then on to transmitter/receiver 26 from where they are transmitted to service center 14 via communications satellites 10.
  • the received temperature values are compared with an allowed range of temperature values. Should the temperature values fall outside the allowed temperature range then a signal is transmitted to communications device 18 with a suitable set of instructions for causing a change in temperature in the refrigerated region in order to correct the temperature.
  • the signal is received by transmitter/receiver 26 and then relayed by processor 24 to the refrigerator's control unit.
  • communications device 18 is enhanced by remote shut down, or power down, commands transmitted by service center 14, in addition to a possible internal timer for powering down.
  • service center 14 when the service center is tracking a cargo container which is on a long journey, say by ship, it may be decided that it is sufficient to receive a position status report once a day.
  • a command can be transmitted from the service center to the communications device mounted on the cargo container powering down the communications device, and then once a day a power up command can be transmitted to the communications device followed by a request for a position status report.
  • a power down command can then be sent to the communications device.
  • the communications device power down command can be accompanied by a satellite positioning system receiver power shut down command, whereby power to the satellite positioning system receiver is completely cut off until a location report is requested.
  • status measurement device power shut down commands can also be transmitted from the service center to the communications device for shutting down the power of other status measurement devices until a status report is required. Attention is now drawn to Fig. 4 showing a perspective view of a cargo container on which is mounted at least two multi-function antenna units.
  • Cargo container 32 has the form of a rectangular box with an end face 34 containing doors which are opened for loading the container. Opposite and parallel to end face 34 is end face 36, hidden from view.
  • the multi-function antenna units are mounted on the cargo container.
  • One multi- function antenna unit 46 is mounted on side face 38 and the other 48 is mounted on upper face 42.
  • the multi-function antenna units are preferably, but not necessarily, mounted close to an upper corner of the cargo container, as shown. If circumstances were to dictate so, further multi-function antenna units could be mounted on the other faces of the container.
  • the two multi-function antenna units are preferably, but not necessarily, electrically connected to the same communications device.
  • Multi-function antenna units 46 and 48 are flat and mounted flush with side face 38 and upper face 42, respectively. Due to the fact that the multi-function antenna units are flat, they can be mounted on existing cargo containers with a minimum of protrusion. However, future cargo containers can be built with the multi-function antenna units and their associated communication devices built in, as an integral part of the faces of the container. As will be described below, the mounting of two multi-function antenna units as shown offers a solution to the problem of loss in communications between a cargo container and communication and satellite positioning system satellites when the containers are stacked one on the other.
  • Fig. 5 showing a perspective view of stacked cargo containers. Shown are three cargo containers 50, 52 and 54, each of the type shown in Fig. 4 with two multi-function antenna units mounted as shown in Fig. 4. Visible, is multi-function antenna unit 56 mounted on the top face of container 50, and multi-function antenna units 58, 60 and 62 mounted on the visible side face of containers 50, 52 and 54, respectively.
  • multi-function antenna unit 56 mounted on the top face of container 50
  • multi-function antenna units 58, 60 and 62 mounted on the visible side face of containers 50, 52 and 54, respectively.
  • the uppermost container 50 has an unobstructed multi-function antenna unit on its upper face and therefore only the uppermost container 50 has a multifunction antenna unit, 56, that has line of sight with the satellite positioning system and communication satellites.
  • the containers apart from the uppermost one will suffer from lack satellite communication.
  • the lack satellite communication, in a stacked container configuration, for all but the uppermost container is solved by utilizing the multi-function antenna units 58, 60 and 62 to communicate between communication devices mounted on the three cargo containers.
  • multi-function antenna unit 62 is required to transmit status data to the service center via the communication satellites.
  • the status data is transmitted by multi-function antenna unit 62 which is then received by multi-function antenna unit 58.
  • Multi-function antenna unit 58 then relays the status data to multi-function antenna unit 56, which in turn transmits the status data to the service center via the communication satellites.
  • the transmission of data from the service center to multi-function antenna unit 62 is performed in a similar manner, but in the reverse order.
  • the service center transmits data which is received by multi-function antenna unit 56, which relays the data to multi-function antenna unit 58, which in turn transmits the data to multi-function antenna unit 62.
  • multi-function antenna unit 60 is able to communicate with the service center.
  • FIG. 6 showing a perspective view of a cargo container in a warehouse.
  • Container 64 has a multi-function antenna unit 66 mounted on a side face, and a multi-function antenna unit 68 mounted on its top face.
  • Warehouse 70 has two electrically connected multi-function antenna units. One 72 mounted on the warehouses ceiling (shown by a broken line because it is hidden from view), and the other 74 mounted on the roof of the warehouse. It is assumed that due to its location within the warehouse that the cargo container has no, or very poor, communications with anything outside of the warehouse.
  • Multi-function antenna unit 68 Communications between the container and the service center is carried out via the two multi-function antenna units 72 and 74, in the following manner.
  • multi-function antenna unit 68 is required to transmit status data to the service center via the communication satellites.
  • the status data is transmitted by multifunction antenna unit 68 which is then received by multi-function antenna unit 72.
  • Multi-function antenna unit 72 then relays the status data to multi-function antenna unit 74 through their common communi- cation device, and antenna unit 74 in turn transmits the status data to the service center via the communication satellites.
  • the transmission of data from the service center to multi-function antenna unit 68 is performed in a similar manner, but in the reverse order.
  • Multi-function antenna unit 16 can be placed on the roof of the house, or on a side wall of the house, and can be covered by some convenient material making blend with the background on which it is mounted.
  • Status data can be transmitted from wirelessly, or by wire, from various devices, such as smoke, fire or anti-theft detectors, in the house to the communications device. From the communications device the status data is transmitted to a service center. The status data can be directly observed and stored for latter use. Likewise, commands can be transmitted to the communication device from the service center with instructions for, say, switching on the heating system, or alternatively the air conditioning in the house.

Abstract

L'invention concerne un système pour service de transmission de données mondial aux fins de notification sur l'état de dispositifs antivol. Le système utilise au moins un satellite de communication, au moins un centre de service, et au moins un dispositif de communication autonome à double usage relié électriquement à au moins une unité d'antenne multifonction, tous deux montables au moins sur une plate-forme. Le ou les dispositifs autonomes en question peuvent recevoir des données d'état depuis le ou les dispositifs antivol montés sur la ou les plates-formes, et ils peuvent communiquer avec le ou les centres de service via le ou les satellites.
PCT/NL1997/000505 1997-09-02 1997-09-02 Systeme pour service de transmission de donnees mondial aux fins de commande a distance et de notification d'etat WO1999012140A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002302954A CA2302954A1 (fr) 1997-09-02 1997-09-02 Systeme pour service de transmission de donnees mondial aux fins de commande a distance et de notification d'etat
JP2000509068A JP2001515288A (ja) 1997-09-02 1997-09-02 遠隔制御と状態報告のためのグローバルデータ通信サービスシステム
PCT/NL1997/000505 WO1999012140A1 (fr) 1997-09-02 1997-09-02 Systeme pour service de transmission de donnees mondial aux fins de commande a distance et de notification d'etat
AU42232/97A AU4223297A (en) 1997-09-02 1997-09-02 A global data communications service system for remote control and status reporting
IL13484397A IL134843A0 (en) 1997-09-02 1997-09-02 A global data communication service system for remote control and status reporting
NZ503161A NZ503161A (en) 1997-09-02 1997-09-02 A global data communications service system for tracking, status reporting and management of platform's status including a status measurement device for measuring and adjusting a property of the platform
NO20001080A NO20001080D0 (no) 1997-09-02 2000-03-02 Globalt datakommunikasjonssystem for fjernstyring og statusrapportering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL1997/000505 WO1999012140A1 (fr) 1997-09-02 1997-09-02 Systeme pour service de transmission de donnees mondial aux fins de commande a distance et de notification d'etat

Publications (1)

Publication Number Publication Date
WO1999012140A1 true WO1999012140A1 (fr) 1999-03-11

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PCT/NL1997/000505 WO1999012140A1 (fr) 1997-09-02 1997-09-02 Systeme pour service de transmission de donnees mondial aux fins de commande a distance et de notification d'etat

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JP (1) JP2001515288A (fr)
AU (1) AU4223297A (fr)
CA (1) CA2302954A1 (fr)
IL (1) IL134843A0 (fr)
WO (1) WO1999012140A1 (fr)

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JP2002251689A (ja) * 2001-02-23 2002-09-06 Network Service:Kk 車両管理装置
WO2003078220A1 (fr) * 2002-03-20 2003-09-25 Minds Inc. Procede et dispositif de partage de donnees utilisant une liaison de communication non permanente
WO2004009473A1 (fr) * 2002-07-19 2004-01-29 Jan Christoffel Greyling Systeme de gestion de recipient

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WO1996016387A1 (fr) * 1994-11-22 1996-05-30 Pedersen Heine E Systeme de supervision de la circulation pour vehicules
DE19504733A1 (de) * 1995-02-06 1996-08-08 Siemens Ag Einrichtung zum Lokalisieren von Gegenständen
US5578877A (en) * 1994-06-13 1996-11-26 General Electric Company Apparatus for converting vibratory motion to electrical energy
DE19621225A1 (de) * 1995-05-31 1996-12-05 Gen Electric Leistungsreduziertes GPS-gestütztes System zum Verfolgen mehrerer Objekte von einem zentralen Ort
EP0748083A1 (fr) * 1995-06-07 1996-12-11 General Electric Company Utilisation de mode "Mutter" dans la localisation de bécus pour saisie de données de capteurs de marchandises
EP0748080A1 (fr) * 1995-06-07 1996-12-11 General Electric Company Service de réduction de données de localisation de biens et de dissémination
GB2304953A (en) * 1995-09-06 1997-03-26 Securicor Security Services Apparatus for controlling and tracking the transfer of a plurality of containers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255665A (en) * 1991-05-09 1992-11-11 Seamus Elmore Vehicle information system.
US5578877A (en) * 1994-06-13 1996-11-26 General Electric Company Apparatus for converting vibratory motion to electrical energy
WO1996016387A1 (fr) * 1994-11-22 1996-05-30 Pedersen Heine E Systeme de supervision de la circulation pour vehicules
DE19504733A1 (de) * 1995-02-06 1996-08-08 Siemens Ag Einrichtung zum Lokalisieren von Gegenständen
DE19621225A1 (de) * 1995-05-31 1996-12-05 Gen Electric Leistungsreduziertes GPS-gestütztes System zum Verfolgen mehrerer Objekte von einem zentralen Ort
EP0748083A1 (fr) * 1995-06-07 1996-12-11 General Electric Company Utilisation de mode "Mutter" dans la localisation de bécus pour saisie de données de capteurs de marchandises
EP0748080A1 (fr) * 1995-06-07 1996-12-11 General Electric Company Service de réduction de données de localisation de biens et de dissémination
GB2304953A (en) * 1995-09-06 1997-03-26 Securicor Security Services Apparatus for controlling and tracking the transfer of a plurality of containers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002251689A (ja) * 2001-02-23 2002-09-06 Network Service:Kk 車両管理装置
WO2003078220A1 (fr) * 2002-03-20 2003-09-25 Minds Inc. Procede et dispositif de partage de donnees utilisant une liaison de communication non permanente
US7373108B2 (en) 2002-03-20 2008-05-13 Minds Inc. Sharing method and apparatus using a non-permanent communication link
WO2004009473A1 (fr) * 2002-07-19 2004-01-29 Jan Christoffel Greyling Systeme de gestion de recipient

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IL134843A0 (en) 2001-05-20
CA2302954A1 (fr) 1999-03-11
AU4223297A (en) 1999-03-22
JP2001515288A (ja) 2001-09-18

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