WO2001091077A1 - Systeme de securite destine a la determination automatique de la position d'objets - Google Patents

Systeme de securite destine a la determination automatique de la position d'objets Download PDF

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Publication number
WO2001091077A1
WO2001091077A1 PCT/EP2001/006068 EP0106068W WO0191077A1 WO 2001091077 A1 WO2001091077 A1 WO 2001091077A1 EP 0106068 W EP0106068 W EP 0106068W WO 0191077 A1 WO0191077 A1 WO 0191077A1
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WO
WIPO (PCT)
Prior art keywords
position data
unit
mobile communication
communication unit
system management
Prior art date
Application number
PCT/EP2001/006068
Other languages
German (de)
English (en)
Inventor
Bernhard Koblischeck
Helmut Fuhrmann
Original Assignee
Bernhard Koblischeck
Helmut Fuhrmann
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 Bernhard Koblischeck, Helmut Fuhrmann filed Critical Bernhard Koblischeck
Publication of WO2001091077A1 publication Critical patent/WO2001091077A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/028—Communication between parent and child units via remote transmission means, e.g. satellite network
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/023—Power management, e.g. system sleep and wake up provisions

Definitions

  • the invention relates to a security system and a method for automatically determining the position of objects, which can determine the position of a mobile communication unit and make this position data available, for example, as raw data and / or as a location designation via a user interface of an output unit.
  • a disadvantage of this device is that the range is very limited and that an exact position determination is only possible if at least three receivers are provided. WEI furthermore, the transmitter's energy consumption is naturally relatively high, since it constantly transmits when the watch is worn on the arm.
  • the object of the invention is to provide a security system and a method for automatically determining the position of objects, in particular children, which allow automatic position determination and monitoring in a simple and inexpensive manner.
  • the security system for automatically determining the position of objects, in particular children can have a mobile communication unit which is assigned to the object.
  • the mobile communication unit can be fixed on or in the object. However, it is also possible to attach the mobile communication unit to an object that the object carries with it.
  • the object can be a child, for example.
  • the object can also be another object, for example a motor vehicle, a fur coat, or another object worthy of protection.
  • a position determination unit can be provided which determines position data of the communication unit.
  • a system management unit can be provided, which can have a user interface, wherein the position data determined by the position determination unit can be transferred to an output unit via the user interface.
  • the communication unit can itself become active, whereby it emits a signal at predetermined time intervals, for example.
  • This signal can contain the position data, the signal with the position data then being able to be evaluated by the system management unit.
  • the signal given by the communication unit at predetermined time intervals is assigned by the network operator to a specific position and then this position is transferred to the system management unit for further evaluation.
  • the energy requirement of the mobile communication unit would be minimized, since it is only activated at predetermined time intervals and emits a corresponding signal.
  • the radiation exposure for the object would also be minimized in this case.
  • the system management unit and / or the network operator selects or controls the mobile communication unit at predetermined time intervals, the mobile communication unit then transferring its position data.
  • the mobile communication unit itself has determined the position data via a global positioning system, or it has received the position data via a corresponding system.
  • the network operator can of course determine corresponding position data of the mobile communication unit and then transfer this to the system management unit.
  • the network operator can determine the position of the mobile communication unit relatively precisely, for example by means of runtime measurements.
  • the position can be determined very precisely by means of transit time differences from the arrival of the radio signals of the mobile communication unit at at least three surrounding base stations of the network operator.
  • the base stations have to be time-synchronized.
  • the expected position accuracy is between 100 and 150 m.
  • the global positioning system can indicate the position of the mobile communication unit. This position can then be transmitted to the system management unit on request by the network operator and / or by the system management unit.
  • the mobile communication unit can also control position data itself at predetermined times hand over the network operator and / or the system management unit.
  • an automated route tracking mode, restricted location mode and / or position extrapolation mode can be provided as the monitoring process.
  • the system management unit can store the position data transferred by the network operator and / or by the mobile communication unit. Upon request, the route position data can then be transferred to the output unit via the user interface.
  • a restricted stay mode can be selected via the user interface.
  • a location or area of residence is specified here.
  • a warning signal can be issued. This warning signal can then be sent to the output unit via the user interface.
  • the respective position data would be saved with the respective time stamps.
  • the route tracking mode in which the respective position data are also provided with a time stamp, so that each position data record can be assigned to a corresponding time.
  • the respective position data provided with time stamps can then be set in relation to one another such that, for example, a corresponding speed profile and / or a direction of movement of the mobile communication unit and thus of the object to be monitored can be determined. If, for example, the speed exceeds a certain amount in a certain predetermined area of the stay zone, a corresponding warning signal can also be issued.
  • a warning signal it would also be conceivable for a warning signal to be issued if the mobile communication unit is at a standstill for a predetermined or predetermined time (provided that such a standstill is not to be expected).
  • a position extrapolation mode can also be provided.
  • the position extrapolation mode can serve above all to provide a corresponding security mode if it is not possible to assign a position signal to the mobile communication unit. If the mobile communication unit is located, for example, in an area in which no radio signals can be received or transmitted or in an area in which the position determining unit cannot receive or transmit signals, the communication unit can be operated by the system management unit and / or by the network operator not be contacted. In this case, it is not possible to determine the position of the mobile communication unit.
  • the mobile communication unit it is possible for the mobile communication unit to be contacted, but no position data ten from the position determination unit (for example a GPS system), since this system is disturbed, for example. In this case, too, no current position of the mobile communication unit can be determined.
  • the position determination unit for example a GPS system
  • the stored position data of the past provided with time stamps can be used.
  • the position data are compared with one another, and a movement profile of the mobile communication unit can be created.
  • This movement profile can result, for example, in a movement path with movement direction and movement speed. If current position data is not available, this movement data can be used to determine an estimated actual position. A certain number of past position or movement data can be used to determine the estimated actual position. If, for example, the last position or movement data indicated that the mobile communication unit was moving with increasing speed, the estimated actual position will take this speed into account.
  • a warning signal could be output in each monitoring mode or position determination mode if no position signal was received by the mobile communication unit for a predetermined period of time.
  • both a position determination via the network operator and a position determination via a can also be used to increase the system security or the position determination security global positioning system (or another external positioning system or one provided in the mobile communication unit). Both position results can then be subjected to a plausibility check.
  • a position of a mobile communication unit can be automatically entered with high accuracy by the security system according to the invention or by the inventive method for automatic position determination.
  • the power requirement of the mobile communication unit can be minimized by the possibility that the mobile communication unit automatically emits certain position signals at predetermined time intervals and / or transfers corresponding signals to a network operator who then undertakes a position determination.
  • the mobile communication unit itself does not require any external operation and can be described as a passive device.
  • the mobile communication unit can also have active components, if appropriate (for example an emergency button, a microphone for recording audio signals or the like).
  • the mobile communication unit can thus itself become active.
  • sensors or signal sensors that are arranged on the mobile communication unit and / or directly on the object, corresponding signals for mobile communication unit can be transferred. These signals can be, for example, vibrations detected or measured on the object, a blood pressure, skin moisture, a temperature measured by means of contact and / or non-contact, and / or a noise.
  • These object properties or this object state determined by the sensors can then be examined for specific limit values or property / state profiles.
  • This examination can be carried out, for example, by the sensor itself, which then, for example, outputs a status signal to the mobile communication unit after a predetermined limit value has been exceeded.
  • the evaluation of the signals can also be carried out by the mobile communication unit.
  • the mobile communication unit can then record this signal at predetermined time intervals (or if a signal arrives from the sensor (s)), possibly store it with a time stamp and evaluate it. If the evaluation with regard to an absolute value, which is compared with a previously stored limit value, shows that this limit value has been exceeded, the system management unit is contacted, for example, by sending the current position data.
  • the signals can also be evaluated with regard to their temporal course.
  • the system management unit can also be contacted.
  • the contacting of the system management unit is thus more timely and situation-oriented. Furthermore, a contact is only established when it is required. As a result, energy can be saved again, so that the service life of the energy supply to the mobile communication unit is extended again and furthermore the radiation exposure for the object is further reduced.
  • All processes in the mobile communication unit can be carried out automatically. The same applies to the monitoring process taking place in the system management unit.
  • the mobile communication unit can also be constructed in such a way that it takes over all functions of the system management unit and has the same or similar components. A separate system management unit would then no longer be necessary.
  • FIGS. 1-3 block diagrams of the invention according to various embodiments.
  • FIG. 4 shows a schematic representation of the mobile communication unit according to an embodiment of the invention
  • 5 shows a schematic representation of the system management unit according to a further embodiment of the invention
  • 6 shows a flowchart for determining position data of the mobile communication unit, the position data being determined by the network operator;
  • FIG. 7 shows a flowchart for determining position data of the mobile communication unit, the position data being determined via a position determination unit (for example GPS);
  • a position determination unit for example GPS
  • FIG. 11 shows an exemplary embodiment of a mobile communication unit.
  • the 1 shows a block diagram with a mobile communication unit 1, which is connected to a system management unit 2.
  • This connection can be made via a network operator 3.
  • the connection itself can be a radio connection.
  • the network used by the network operator can be, for example, a GSM network.
  • the mobile communication unit 1 is connected to a position determination unit 4.
  • the position Mood unit 4 can contain a positioning system 5, which allows, for example, satellite-based precise position determination, this position data then being available to the mobile communication unit 1. This position data can then be transmitted to the system management unit 2 via the network operator 3 or directly via a data stream.
  • the position determination unit 4 is implemented by the network operator 3.
  • the network operator 3 can then determine, for example via the base station assigned to the mobile communication unit 1, a cell in which the mobile communication unit 1 is currently located. This position can then be forwarded to the system management unit 2.
  • the network operator 3 can determine a more precise position if, for example, three base stations are available, in the reception area of which the mobile communication unit 1 is located. An exact position of the mobile communication unit 1 can then be determined by running time differences. To do this, the base stations should be time-synchronized.
  • FIG. 3 shows a further embodiment of the invention, the mobile communication unit 1 containing the position determination unit 4.
  • the position determination unit 4 can, for example, carry out a positioning using transit time differences with geostationary and / or terrestrial transmitters or receivers and then pass this on to the network operator 3, which tion signals in turn transmitted to the system management unit 2.
  • FIGS. 1, 2 and 3 can be combined with one another as desired.
  • the mobile communication unit 1 contains a transmitter 6, a receiver 7, a frequency filter 8, a timer 9, a CPU (central processing unit) 10 and a memory 11.
  • the aforementioned components are electrically connected to one another in a suitable manner.
  • the receiver 7 can receive signals from the position determination unit 4, wherein the position determination unit 4 can be a GPS system 5. These received signals can then be temporarily stored in a memory 11, for example.
  • the time intervals or the times at which the receiver 7 receives corresponding signals can be predetermined by the timer 9.
  • the timer 9 can also contain time intervals for the transmission of signals by the transmitter 6.
  • the timer 9 can also provide the corresponding position signals with a system time.
  • the reception of position data via the GPS system 5 and the transmission of this position data by the transmitter 6 can take place sequentially or in parallel in time.
  • the CPU 10 can control the individual components accordingly.
  • the communication unit 1 can also receive sensor signals from sensors and, for example, evaluate them in a control unit. to respond accordingly and contact the system management unit, if necessary (not shown).
  • FIG. 5 shows a highly schematic representation of the system management unit 2.
  • the system management unit 2 is connected to an output unit 12.
  • the output unit 12 can include a computer 13 and / or a telephone 14.
  • the output unit 12 is connected to the system management unit 2 via a user interface 15.
  • the user interface 15 is in turn connected to a control unit 16 of the system management unit 2.
  • the control unit 16 is also connected to a call center 17 and a further interface 18.
  • the control unit 16 also has access to a system memory 19.
  • an input unit 20 is provided.
  • the input unit 20 can also contain a computer and / or a telephone. A user can have the position of a mobile communication unit 1 determined via the computer 13 and / or via the telephone 14 of the input unit 20.
  • the corresponding position determination mode can be specified both via the telephone 14 and via the computer 13.
  • the corresponding mode can be agreed directly with the call center 17 using the telephone 14, for example.
  • the system memory 19 can be, for example, a RAM (random access memory) and / or a hard disk.
  • the system management unit 2 can be in a radio network or landline connection (direct line) with the network operator 3.
  • the system management unit 2 can provide the network operator 3 with the position determination requests specified via an input unit 20 Pass on network operator 3, so that he carries out the necessary processing routines independently and then returns the respective position data to the system management unit 2 accordingly.
  • An independent organization of the automatic position determination by the system management unit 2 is of course also possible.
  • the output unit 12 and the input unit 20 can also be designed as a device or component (not shown).
  • the call center 17 can also be connected directly to the user interface 15 and the external interface 18, so that a contact can be made bypassing the control unit 16.
  • a warning signal is generated in the restricted stay mode or the route tracking mode, this can be forwarded to the output unit 12 as well as to the police 21 or a security service 22 via the further interface 18, so that they can then carry out or initiate the necessary steps , A plausibility check can be carried out by the call center 17 before the transfer.
  • the user can contact the call center 17 at any time around the clock, the call center 17 in turn being able to contact the security service 22 and / or the police 21 at any time around the clock.
  • FIG. 6 shows a flow chart for determining the position data of the mobile communication unit 1.
  • the user is initially authenticated. This can the user and / or the device assigned to him enter a user identification USERID, a password and / or a personal identification number PIN via the user interface 15. If the system management unit 2 or the control unit 16 determines that the user is authorized, a branch is made to a step 101. If the entered user data does not lead to authentication, the user does not have access to the system management unit 2. In step 101, the user interface 15 of the system management unit 2 is queried.
  • a position request is ascertained in a step 102, that is to say, for example, a position request has been entered via the input unit 20, it being noted that the input unit 20 can also contain a computer and / or a telephone, a branch is made to a step 103. If no position request was determined in step 102, a branch is made back to step 100.
  • the mobile communication unit 1 is identified and / or localized.
  • the network operator 3 can identify and / or localize it. If the mobile communication unit 1 has been identified and / or localized, the position data can be determined by the network operator 3 in a step 104. This determination can be made, for example, by specifying or holding the respective network cell and / or coordinates assigned to the mobile communication unit 1. However, it is also possible to use the already mentioned transit time measurements to optimally determine a position via three base stations.
  • the position data determined in this way can be transferred from the network operator 3 to the system management unit 2 in a step 105.
  • the position data thus transferred can then be transmitted in a step 106 to the user interface 15, which forwards it to the output unit 12.
  • the position data can also be transmitted via the call center 17 or directly to the further interface 18.
  • FIG. 7 shows a further flow chart in which the user interface 15 of the system management unit 2 is queried in a step 201. If it is determined in a step 202 that there is a corresponding position data request, a branch is made to a step 203. If it is determined in step 202 that there is no position request, the process branches back to step 201.
  • step 203 the mobile communication unit 1 is again identified and / or localized. This identification and / or localization can be carried out by the network operator 3.
  • a position request signal is sent to the mobile communication unit 1.
  • This position request signal can also be sent by the network operator 3.
  • the mobile communication unit 1 can then determine its position in a step 205 via the position determination unit 4.
  • the position determination unit can be a global positioning system 5, for example. If the position of the mobile communication unit in step 205 is was true, or if the mobile communication unit 1 itself has determined this position via the position determination unit 4, the mobile communication unit 1 sends the position data thus determined to the network operator 3 in a step 206.
  • the network operator 3 transfers the position data to the system management unit 2, which then transfers the same to the user interface 15 in a step 208.
  • the user interface 15 in turn forwards the determined position data to the output unit 12.
  • the position data can also be transmitted via the call center 17 or directly to the further interface 18.
  • the warning signal, the position signals and / or the route data can be transferred or forwarded to the user interface 15, the call center 17 and / or the external interface 18.
  • a route tracking mode can be specified. Such an indication can be made, for example, via the input unit 20.
  • the input unit 20 can contain, for example, a computer or a telephone, it being possible for the route tracking mode to be input via these input devices.
  • the data entered in this way are transmitted via the user interface 15 to the control unit 16 of the system management unit 2.
  • a corresponding route tracking mode routine is started there.
  • the position data of the mobile communication unit 1 can be stored in the system memory 19.
  • the stored position data can each contain time stamps, so that each position data record is assigned a corresponding time.
  • the stored position data can then be queried with a time stamp, so that route tracking is possible.
  • FIG. 9 shows a possible flow chart in the restricted stay mode.
  • the restricted stay mode can be entered into the system management unit 2 via the input unit 20.
  • a location area for the mobile communication unit 1 can be defined. This location area can be a circle, for example, which extends around a specific coordinate with a specific radius. Of course, any other areas of residence can be specified. Here, for example, neighborhoods, streets or the like can be specified.
  • a step 401 the position data of the mobile communication unit 1 are then queried automatically at predetermined time intervals.
  • the position data are compared with the predetermined target stay area. If this comparison in step 402 reveals that the position data are not outside the predetermined target stay area, the method branches back to step 401. However, this comparison reveals that If the position data are outside the predetermined desired location area, a branch is made to a step 403, which causes a warning message to be output to the output unit 12. Step 403 can also cause a warning signal to be output via the further interface 18 to a police station 21 or a security service 22.
  • the position extrapolation mode can be selected via the input unit 20.
  • the position extrapolation mode can, however, also be selected automatically by the system management unit 2 if, in the corresponding query sequence of position data, it emerges at predetermined time intervals that no position data is available at certain times. Since the position data are queried at predetermined time intervals in step 500, and since these position data are then stored, they are available for the position extrapolation mode.
  • step 501 it is checked whether the position data is available or not. If it is found that no position data is available at the corresponding point in time at which position data are to be queried again, a branch is made to a step 502. If it emerges in step 501 that position data is available, the method branches back to step 500.
  • step 502 an extrapolation is then carried out using the available position data and / or using available and already determined movement data.
  • the movement data can be for example, direction data, speed data and / or acceleration data of the mobile communication unit 1.
  • the extrapolation in step 502 thus takes place with movement data and / or position data from the past, these data being stored, for example, in the system memory 19 of the system management unit 2.
  • An estimated actual position can then be determined in step 502 using a corresponding estimation routine using the stored values from the past.
  • the program then branches to a step 503, a warning message being output and the estimated actual position being indicated.
  • the warning message can in turn be output both to the output unit 12 and via the further interface 18 to a police station or a security service.
  • the output to the police station or the security service should of course only take place if position data cannot be determined within a predetermined period of time, this period of time being variable depending on the security level of the mobile communication unit 1.
  • a so-called Children Security System can be implemented, which makes it possible to find out where a child is currently located.
  • the CSS system gives parents and legal guardians the opportunity to find out about the child's place of residence around the clock every day.
  • the CSS system opens up the possibility of a timely response if the position of the child or children requested from the call center deviates from the agreed or accepted position.
  • the CSS system also enables the search and rescue institutions the time advantage, which can possibly save lives, since time-efficient support of search and rescue operations is possible. Every child using a CSS system can, for example, receive a visually striking badge that is visibly attached to the child's clothing, school bag, gym bag, etc. and thus helps preventively prevent criminal access.
  • the mobile communication unit 1 is assigned to an object and has a GPS receiver 30 and a GPS antenna 31 as a position determination unit 4.
  • the GPS receiver 30 receives the signals of the GPS system and determines the position of the mobile communication unit 1.
  • Modern GPS receivers enable a location to be determined even within buildings with an accuracy deviation of approximately 10 m. This makes it possible to determine the exact location of children, for example, also within buildings via the mobile communication unit 1 assigned to them, and thus to continuously monitor their position.
  • the mobile communication unit 1 also has a control unit 32, a GSM modem 33 and a GSM antenna 34.
  • the position determined by the GSM receiver 30 is transmitted to the system management unit 2 at predetermined time intervals or on request from the control unit 32 via the GSM modem 33 and the antenna 34. This is done in the present form via a GSM mobile radio network, which enables data transmission between the GSM modem 33 and the system management unit 2.
  • the mobile communication unit 1 also has a power supply 35, for example a lithium-ion battery, and an internally metallized plastic housing 36 for shielding to increase the electromagnetic compatibility (EMC). It is possible for the mobile communication unit 1 to have controls (not shown) which are used to configure the device. To avoid inadvertent unconfiguration or undesired manipulation of the mobile communication unit 1, it can be advantageous to operate the device from the system management unit 2 via the mobile radio connection and to dispense with operating elements.
  • a power supply 35 for example a lithium-ion battery
  • EMC electromagnetic compatibility
  • the data transmission between the mobile communication unit 1 and the system management unit 2 can take place by exchanging SMS messages or via a data transmission protocol suitable for a GSM mobile radio connection, preferably via CSD (Circuit Switched Data) or GPRS (General Packet Radio System) ,
  • This protocol is terminated in the mobile communication unit 1 in the GSM modem 33, which is controlled by the control unit 32 and exchanges data to be transmitted with it.
  • the control unit 32 also evaluates commands from the system management unit 2, which it receives from the GSM modem 33.
  • the mobile communication unit 1 can be configured in accordance with the received commands.
  • the transmission of the position determined by the GPS receiver 30 to the system management unit 2 can be carried out by the control unit 32 only on request.
  • a particularly expedient embodiment of the invention comprises the conversion of a received position into an address from, for example, country, city, street and house number by the system management unit 2.
  • the output of such a converted position as an address simplifies the understanding of the position data for the user.
  • a user who is interested in the location of his child, for example, is not informed of this in the form of coordinates, but rather as an easily understandable address. This saves the user a laborious manual conversion of the coordinates with the help of a map to get an impression of his child's whereabouts.
  • the security system can convert the position data into an easily understandable description of the location (e.g. "the searched object")
  • the facility is located approximately 3 km north-east of the intersection between federal roads x and y ").
  • Such an address can advantageously be output via a telephone device 13 connected to the output unit 12.
  • a telephone device 13 connected to the output unit 12.
  • the current address of the object is communicated to it by a voice output device of the output unit 12. In this way, the user can query the desired location from any fixed or mobile telephone connection.
  • the requested address can conveniently be queried fully automatically via an interactive voice response system (interactive voice response (IVR) system).
  • IVR interactive voice response
  • An interactive voice information system can automatically recognize incoming voice messages (voice recognition) and convert them into corresponding commands to the system management unit 2.
  • voice information system often conducts an automatic dialog with the user and poses corresponding questions for clarification.
  • the user's answers to the questions of the voice information system are recognized and evaluated by the voice recognition device.
  • Another possibility for the user to enter information into the voice information system is to use the DTMF characters assigned to the number keys on a telephone.
  • the questions asked to the user in dialog or the desired address can be output, for example, via a speech synthesis device which can output any words or texts in linguistic form.
  • the corresponding words or texts can also be stored as saved voice messages.
  • a further embodiment of the invention provides that the request of a user for determining the position of an object and the output of the determined position data via SMS messages, graphically fictional mobile devices (via WAP, GPRS, UMTS), handheld computers (e.g. PalmPilot with wireless network connection or similar) or the Internet.
  • Such an address output via the Internet can be done very graphically by displaying a map section with the marked position of the object sought.

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  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un système de sécurité destiné à la détermination automatique de la position d'objets, en particulier d'enfants. Ledit système est composé d'une unité de communication mobile (1) affectée à l'objet, d'une unité de détermination de position (4) déterminant des données de position de l'unité de communication (1), et d'une unité de gestion système (2) présentant une interface utilisateur (15), et transmettant les données de position déterminées par l'unité de détermination de position (4) à une unité d'émission (12) par l'intermédiaire de l'interface utilisateur (15).
PCT/EP2001/006068 2000-05-26 2001-05-28 Systeme de securite destine a la determination automatique de la position d'objets WO2001091077A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10026181.7 2000-05-26
DE2000126181 DE10026181A1 (de) 2000-05-26 2000-05-26 Sicherheitssystem zur automatischen Positionsbestimmung von Objekten

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WO2001091077A1 true WO2001091077A1 (fr) 2001-11-29

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Publication number Priority date Publication date Assignee Title
FR2862796A1 (fr) * 2004-02-10 2005-05-27 France Telecom Procede de surveillance et systeme permettant de mettre en oeuvre ce procede
DE202006020851U1 (de) * 2006-09-01 2010-08-19 Audi Ag Rahmenelement für einen Kraftwagen und dessen Befestigungsanordnung an einer Kraftwagenkarosserie
DE102019120343A1 (de) * 2019-07-26 2021-01-28 Cargoguard Gmbh Energieeffizienter Betrieb eines Überwachungsmoduls, Überwachungsmodul und Transportbehälter mit Überwachungsmodul

Citations (2)

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Publication number Priority date Publication date Assignee Title
US5652570A (en) * 1994-05-19 1997-07-29 Lepkofker; Robert Individual location system
GB2314986A (en) * 1996-07-02 1998-01-14 Alan Michael Cox Electronic child protection system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652570A (en) * 1994-05-19 1997-07-29 Lepkofker; Robert Individual location system
GB2314986A (en) * 1996-07-02 1998-01-14 Alan Michael Cox Electronic child protection system

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