DE102005014975B4 - Method for locating a person - Google Patents

Abstract

Method for locating a person (1) who can stay in at least a first zone (2) and in a second zone (3), characterized in that a) the location of the person (1) in the first zone (2) by a transmitter (4) located on the person (1) which is in communication with at least one receiver (5) arranged in the first zone (2), the position of the person detected by the at least one receiver (5) (1) is transmitted to a monitoring station (19), where it is registered, and b) that the location of the person (1) in the second zone (3) is effected by b1) that a Global Positioning System signal ( GPS signal) from Global Positioning System satellites is received by a receiving device (6 ') located at the person (1), b2) that the Global Positioning System signal is transmitted directly or indirectly to a transmitting element (6' '). ) and b3) that the transmitting element (6 '') the position coordinates of the person (1) mitt els a mobile connection, in particular according to the GSM standard, transmitted to the monitoring station (19), where they are registered, wherein when leaving the first zone (2) and entering the second zone (3), a signal is generated, the the global positioning system signal receiving receiving device (6 ') and / or the position coordinates transmitting transmitting element (6' ') is activated, wherein when leaving the second zone (3) and upon re-entry into the first zone (2) a signal is generated which deactivates the receiving device (6 ') receiving the Global Positioning System signal and / or the transmitting element (6' ') transmitting the position coordinates, the person (1) using a measuring device (12) for measuring is provided by the measuring device (12) to the receiver (5) located in the first zone (2) and / or to the transmitting element (6 '') located on the person (1) and / or or to the mobile phone (7) at least t then a signal is transmitted when the meter (12) detects abnormal data, ...

Description

The invention relates to a method for locating a person who may be at least in a first zone and in a second zone.

The location of persons, but also of other objects, has recently become very important. Especially through the availability of modern positioning systems new possibilities have been created. Attention is drawn to the location by means of Global Positioning System (GPS) signals, which makes new application possible.

In the case of personal location, the aspect of safety usually plays a major role. The said systems now available enable hitherto unknown possibilities of monitoring. Here, above all, the monitoring of the place of sick and old people, but also of schoolchildren to call.

The DE 100 58 156 A1 discloses a method for the wireless transmission and for the diagnosis and analysis of biosignals, in particular heart and circulatory signals. The biosignals of a person to be monitored are recorded by means of a mobile phone and transmitted to a workstation for evaluation. In addition to the transmission of various biosignals is also provided that the current location data of the monitored person are transmitted, with a GPS transmitter is integrated into the mobile phone. This can be done in the given case, a location of the person in order to initiate emergency aid. A similar solution is from the DE 100 58 157 A1 known.

The DE 101 40 968 A1 proposes a method for measuring bodily functions, in which it is provided that the person to be monitored carries a measuring device which is capable of detecting biosignals, in particular of blood sugar values. The meter is connected to a mobile phone via a wireless connection in accordance with the Blue-Tooth standard or via a Blue-Tooth Point-to-Point connection via which the measured data is transmitted. Data can be transmitted for further evaluation.

The DE 102 04 028 A1 proposes in addition to this solution, that an electronic message is converted after receipt in the receiving device into a voice message or that in the receiving device, the reception of an electronic message causes the generation of a voice message.

From the DE 101 13 545 A1 is a method for determining position by means of a position receiving device, wherein a plurality of signals, namely a first and a second signal, are used for positioning. It is first emitted a first signal via a first signal path, which is then received and processed; then a second signal is sent at a predetermined time via a second signal path. Subsequently, a determination is made as to whether the second signal is received over the second signal path in a second predetermined time.

If this is the case, a primary message is processed to determine the position.

The DE 197 11 087 C1 deals with the finding and the location of persons by means of a transmitting device, the person to be located is provided with a micro-transmitter implanted under the skin and the transmitter emits an individual detection signal after receiving the activation signal.

Other solutions for locating people and objects are from the US 6 614 349 B1 , from the WO 2005/020551 A1 and from the US 5,317,309 A known.

If a person is to be monitored in a building, locating by means of a Global Positioning System signal (GPS signal) is not suitable since this can not be received in the building. Surveillance systems in which the person to be monitored is equipped with a transmitter that communicates with a receiver have proven to be useful here. This transmitter or receiver are used, which operate by means of a high-frequency signal. The communication is effected by a radio frequency identification signal (RFID signal). The range of the transmitter is indeed very limited (maximum in the range of about 100 m). However, this is usually sufficient for monitoring in a building.

If the person to be monitored leaves the building, he or she may leave at a checkpoint ("gate"), ie. H. For example, at an exit door, by a transponder, which carries the person, a transmitter are energized, which causes a warning signal. Such systems are used, for example, by disoriented elderly persons who are allowed to move freely in a building (retirement home), but who are not allowed to leave the building without supervision. As an alternative to the output of the warning signal by the signal sent by the transponder to the gate, for example, it can also be made to close the exit door so that the person can not leave the building.

It is also known that such transceiver system communicate with a meter that transmits biosignals. So can in one Building body functions are monitored by persons.

Although it is already possible with the existing systems to carry out a far-reaching monitoring of the location of a person or other object, such as a valuables, and thus possibly to observe body functions of a person, the rapid location of the person occasionally is problematic if This can be in a building (where, although a wireless connection can exist, but in which no GPS signal can be received) and outside of the building can move.

Previously known systems are overdetermined in this regard, i. H. It may be that in the combination of the previously known solutions for monitoring in the home and away from home two signals must be evaluated before the location of the person is possible.

As problematic, it has been found in known detection systems, especially in nursing home or hospital area, that the reliable assurance full operational readiness is very laborious. Since the GPS receiver is always activated in particular when monitoring the position by means of GPS positioning, the device which carries the person to be carried with it constantly requires power, so that it is necessary to charge the batteries of the device cyclically , This represents a considerable effort for the nursing staff.

The invention is therefore based on the object to propose a method for locating a person, with which it is possible to overcome this disadvantage. So it should be possible to achieve an improved and faster location of the person, it should no longer matter whether the person is in a building or outside a building. It should be possible at any place a quick and clear location of the person. Furthermore, it should be possible to keep the effort for ensuring a proper operating state of the tracking devices that carry the people to be carried with them as low as possible in order to achieve an efficient relief of the nursing staff, especially in retirement homes and hospitals.

• a) dass die Ortung der Person in der ersten Zone durch einen sich an der Person befindlichen Sender erfolgt, der in Kommunikationsverbindung mit mindestens einem in der ersten Zone angeordneten Empfänger steht, wobei die von dem mindestens einen Empfänger erfasste Position der Person an eine Überwachungsstation übermittelt wird, wo diese registriert wird, und
• b) dass die Ortung der Person in der zweiten Zone dadurch erfolgt,
• b1) dass ein Global-Positioning-System-Signal (GPS-Signal) von Global-Positioning-System-Satelliten von einem sich an der Person befindlichen Empfangsgerät empfangen wird,
• b2) dass das Global-Positioning-System-Signal direkt oder indirekt einem Sendeelement zugeleitet wird und
• b3) dass das Sendeelement die Positionskoordinaten der Person mittels einer Mobilfunkverbindung, insbesondere nach dem GSM-Standard, an die Überwachungsstation übermittelt, wo diese registriert werden, wobei beim Verlassen der ersten Zone und beim Eintritt in die zweite Zone ein Signal erzeugt wird, das das das Global-Positioning-System-Signal empfangende Empfangsgerät und/oder das die Positionskoordinaten übermittelnde Sendeelement aktiviert, und wobei beim Verlassen der zweiten Zone und beim Wiedereintritt in die erste Zone ein Signal erzeugt wird, das das das Global-Positioning-System-Signal empfangende Empfangsgerät und/oder das die Positionskoordinaten übermittelnde Sendeelement deaktiviert, wobei die Person mit einem Messgerät, das zur Messung von Körperfunktionen geeignet ist, versehen ist, wobei vom Messgerät an den sich in der ersten Zone befindlichen Empfänger und/oder an das sich an der Person befindlichen Sendeelement und/oder an das Mobiltelefon zumindest dann ein Signal übertragen wird, wenn das Messgerät abnormale Daten detektiert, wobei über den sich in der ersten Zone befindlichen Empfänger oder über das sich an der Person befindlichen Sendeelement oder über das Mobiltelefon bei der Übertragung eines Signals bei Detektion abnormaler Daten ein Notrufsignal ausgelöst wird, wobei ein Warnsignal ausgegeben wird, wenn die Kommunikationsverbindung zwischen dem Messgerät und dem sich in der ersten Zone befindlichen Empfänger oder zwischen dem Messgerät und dem sich an der Person befindlichen Sendeelement oder zwischen dem Messgerät und dem Mobiltelefon unterbrochen ist.

The solution of this problem by the invention is in locating a person from the following: According to the invention,

• a) that the location of the person in the first zone is effected by a personal transmitter in communication with at least one receiver located in the first zone, the position of the person detected by the at least one receiver being transmitted to a monitoring station becomes, where this is registered, and
• b) locating the person in the second zone,
• b1) a Global Positioning System (GPS) signal from Global Positioning System satellites is received by a receiving device on the person,
• b2) that the Global Positioning System signal is fed directly or indirectly to a transmitting element, and
• b3) that the transmitting element transmits the position coordinates of the person by means of a mobile radio connection, in particular according to the GSM standard, to the monitoring station, where they are registered, wherein when leaving the first zone and entering the second zone, a signal is generated, the the receiving device transmitting the global positioning system signal and / or the transmitting the position coordinates transmitting element, and when leaving the second zone and re-entering the first zone, a signal is generated which receives the global positioning system signal Receiving device and / or the transmitting the position coordinates transmitting element, wherein the person is provided with a measuring device which is suitable for measuring body functions, being provided by the measuring device to the receiver located in the first zone and / or to the person at least then ei. located transmitting element and / or to the mobile phone n signal is transmitted when the meter detects abnormal data, with an emergency call signal being triggered by the receiver located in the first zone or by the transmitter element or by the mobile telephone during the transmission of a signal when abnormal data is detected a warning signal is issued when the communication link between the meter and the receiver located in the first zone or between the meter and the transmitter element located on the person or between the meter and the mobile phone is interrupted.

The invention thus provides that in a monitoring station, the position information of the person converge, wherein in the first zone, the location is carried out by means of a person located on the transmitter, which is in communication with a receiver arranged in the first zone. In the second zone, however, the location is effected by means of a Global Positioning System signal (GPS signal), wherein a at the Person located GPS receiver is present, which gives its position information to a transmitting element that transmits the coordinates of the person to the monitoring station by means of a mobile radio connection. It is essential to the invention that the GPS receiver and / or the transmitting element is activated only when leaving the first zone and entering the second zone by means of a generated signal; Upon reentry of the person from the second to the first zone then deactivation of the GPS receiver and / or the transmitting element.

This means that in the first zone, the GPS receiver and / or the transmitting element is in a sleep mode and thus consumes no power. Only when leaving the first zone, the GPS receiver or the transmitting element begins to consume power.

Since the persons to be monitored frequently reside in a building in which no GPS location is possible anyway, and the persons leave the building only occasionally (eg nursing home, hospital), the invention proposal significantly increases the operating time of the positioning system until the battery is recharged.

A first development provides that the first zone is a space in which no Global Positioning System (GPS) signal can be received. In this case, the first zone may be a building or a vehicle interior.

The second zone is preferably an area outside of buildings or vehicles.

The transmitter located at the person and the at least one receiver located in the first zone can communicate via a radio signal. The short-range signal may be a high-frequency signal.

The transmitter located at the person and the at least one receiver located in the first zone can also communicate via a radio signal. Furthermore, it is possible for the transmitter located at the person and the at least one receiver located in the first zone to communicate via a signal in the GSM standard.

The station located at the person transmitter, the receiving device and located on the person transmitting element can be in communication with a mobile phone, preferably arranged in this.

The signal generated when leaving the first zone and entering the second zone can be generated by a transponder located on the person, which excites a receiver arranged at the transition location from the first to the second zone and causes the transmitting element to be switched on.

In the activated state of the receiving device receiving the Global Positioning System signals, the position coordinates can be transmitted via the transmitting element to the monitoring station at predefinable time intervals, whereby these are recorded or stored there.

An optimal possibility for tracking the location of the person in the second zone is achieved if, in the activated state of the GPS receiver or the transmitting element at predetermined or predetermined time intervals, the position determined by the locating signal of the person is recorded or stored, namely the monitoring station. This has a high practical value, above all, because it can not be ensured that the GPS signal provided for locating in the second zone is always receivable. If, for example, the person moves to a location where the GPS signal can not be received (tunnel, dense forest, etc.), at least the place where the person was last identified is definable. Finding the person is thus much easier possible.

Supervised persons, such as the elderly and the sick, can maintain a largely independent way of life with the method according to the invention or the corresponding device, without having to give up the monitoring that is necessary for their well-being. Similarly, security personnel can be monitored better, easier and with less effort to better assure their safety. Even for students, especially in the lower grades, there is an improved monitoring option to respond quickly to unforeseen circumstances when needed.

In the drawing, an embodiment of the invention is shown. Show it:

1 schematically the top view of a building and on an adjacent exposed area with a person to be monitored and

2 the person with a mobile phone using it.

In the figures is an object 1 outlined, which is a person to be monitored in terms of their location. It is this Note again that the described method is particularly suitable for locating persons, but is not limited thereto. For example, a suitcase with valuables can be monitored with regard to its location.

The person 1 can move freely in two zones, namely in a first zone 2 , which is a building in the present case, and in a second zone 3 , which is the environment (the outdoors).

As long as the person 1 inside the building 2 is, their location is done with a transmitter 4 the person has with him and with one in the building 2 arranged receiver 5 communicated. transmitter 4 and receiver 5 work with a short-range radio signal. The range between transmitters 4 and receiver 5 Although limited to a range of about 100 meters, but this is sufficient to the person 1 when in the zone 2 to be located.

The recipient 5 may be arranged to respond to specific signals, such as by passing received information to a central monitoring station.

The one from the receivers 5 determined position of the person 1 is sent to a monitoring station 19 passed on the whereabouts of the person 1 registers and saves the data if necessary.

In 1 is the first zone 2 , that is, the building, in several subzones 2 ' . 2 '' and 2 ''' divided. In each subzone 2 ' . 2 '' . 2 ''' there is one receiver each 5 ' . 5 '' . 5 ''' , With the subdivision into the zones 2 ' . 2 '' . 2 ''' It is possible not only to make a statement about whether the person 1 inside the building 2 is, but also to determine the appropriate zone of residence. It can also be planned that on doors 13 . 14 between two zones 2 ' . 2 '' . 2 ''' receiver 15 . 16 are arranged by a transponder 8th be stimulated by the person 1 carries with itself. This also makes it possible to better locate the person 1 within the building. This is especially in large buildings into consideration, for. In a nursing home or in a hospital.

With the logging of the passed doors 13 . 14 or the triggered passed recipient 15 . 16 is also a recognition of the direction of the person 1 inside the building 2 possible. The finer the network of each zone 2 ' . 2 '' . 2 ''' is, the more accurate the whereabouts of the person 1 be determined.

Together with the transmitter 4 the person has other electronic elements with him, s. 2 , It is a GPS receiver 6 ' and a transmitting element 6 '' , The GPS receiver 6 ' is - upon activation, ie application of power from a battery, not shown - able to the location coordinates of the person 1 in known GPS standard to determine. These coordinates are sent to the transmitting element 6 '' passed. In 2 is schematically indicated that the coordinates of the person 1 via a conventional mobile radio connection - ie via a mobile telephone network, namely in the GSM standard or in the UMTS standard - to the monitoring station 19 to get redirected. There, the position coordinates are registered and possibly saved.

Preferably, the first transmitter 4 for RFID signal tracking, the GPS receiver 6 ' and the transmitting element 6 '' together in a mobile phone 7 housed the person 1 with you (s. 2 ). The transponder 8th can also be in the mobile phone 7 be arranged; It can just as well as z. B. on the clothing of the person 1 be appropriate as it is in 2 is indicated.

Leaves the person 1 the building 2 , it must necessarily pass a control point ("gate"), ie a transitional location 9 from the first to the second zone. Here is a receiver 10 arranged by the transponder 8th is addressed, the person 1 carries with itself.

The recipient 10 when leaving the first zone 2 and entering the second zone 3 through the transponder 8th is excited, causes a signal to the GPS receiver 6 ' and the transmitting element 6 '' activated, so that the location can be done by GPS. While the GPS receiver 6 ' and the transmitting element 6 '' in the building (zone 2 ) in a passive mode is ("sleep mode") these components when leaving the building 2 put into active mode so that they now allow GPS tracking.

In the embodiment, the person leaves 1 the building 2 and lay a path 17 back. When the GPS receiver is activated 6 ' and transmitting element 6 '' is now constantly made at predetermined intervals a location, so that the positions 11 . 11 ' . 11 '' etc. of the person 1 taken and sent to the monitoring station 19 be transmitted. Thus, in the required case, the distance traveled 17 in the monitoring station 19 be reconstructed. Kick the person 1 into a zone 18 in which no GPS signal can be transmitted because there is no line of sight to the positioning satellite (for example, in a dense forest or in the area of a bridge or a tunnel) is at least the last position 11 '' the person 1 detectable, so that if required, a targeted search can be performed.

So while the location of the person 1 inside the building 2 by means of the transmitter 4 and the recipient 5 takes place, whereby for communication between transmitter 4 and receiver 5 A Radio Frequency Identification signal is used, comes outside the building, so outdoors 3 using GPS tracking. The GPS receiver 6 ' and the transmitting element 6 '' be targeted when crossing the first zone 2 to the second zone 3 activated. As a result, a very specific location is possible, so that it can be seen immediately, which locating system must be used.

The person 1 is still with a measuring device 12 equipped to measure bodily functions that can be worn as a (watch) bracelet. This meter is one that can capture the most diverse data. These range from muscle reflexes and pulse rate to blood glucose levels, temperature data, skin resistance values, blood pressure values and acceleration values (case detection), so that the data, which are of importance for their health, can be queried, especially in old and sick people.

As it is in 2 is indicated only schematically, communicates the meter 12 with the mobile phone 7 as known in the art as such. The data connection can be made via a wireless connection according to the Blue-Tooth standard or via a Blue-Tooth Point-to-Point connection.

It is thus possible, in addition to the location of the person 1 also to constantly query their body data and monitor for abnormalities. If any abnormalities occur, which can be detected by means of a monitoring computer, a warning signal can be triggered, so that possibly a call of the person 1 by means of the mobile phone 7 or the targeted search for the person based on the tracked position data 11 . 11 ' . 11 ''' , ... can be initiated.

The abnormalities can also be directly in the meter 12 be monitored, so that, for example, when leaving a permissible range for a parameter of the body data automatically an SMS message from the mobile phone 7 is sent to a central monitoring station, so that, if necessary, rescue measures can be initiated.

To increase the safety of the person 1 is further provided that when the data connection between the meter 12 and the mobile phone 7 a warning signal is triggered. This can either be the meter 12 on the person's wrist emit a corresponding sound or even the mobile phone 7 ring. Thus, the person can 1 Always be reminded of the mobile phone 7 with elements 4 . 6 ' . 6 '' take with you if she changes her whereabouts.

Such a warning - both to the person 1 as well as to the central monitoring station 19 - can also be issued if the person 1 without a mobile phone 7 (including integrated elements 4 . 6 ' . 6 '' ) wants to leave the house.

Further, it is possible, after a given time, the warning to which the person 1 did not respond (by calling the mobile phone 7 itself), to send a corresponding message to a central monitoring station, so that from there measures can be taken before the person is too far from the building 2 has moved away.

Another action may be that a warning to the central monitoring station 19 is sent out when on the meter 12 is manipulated, z. For example, if the bracelet is dropped or it is cut or the batteries of the meter 12 are empty.

Upon reentry of the person 1 in the building 2 can - correspondingly reversed as explained above - by the release of the receiver 10 At the "gate" via the transponder a signal is generated, which is the GPS receiver 6 ' and the transmitting element 6 '' disabled. This immediately indicates that the person 1 back in the building 2 located.

The proposed invention is particularly suitable for the elderly and nursing. However, as already mentioned, items can also be monitored, including vehicles that carry valuables. The first zone 2 can therefore also be a vehicle (in which no GPS signal can be received). The GPS transmitter is then disabled as long as not the receiver 10 through the transponder 8th when leaving the vehicle was triggered.

In the case of monitoring elderly or sick people, an automatic emergency call system and Wegläuferschutzsystem is created, which allows a particularly stable operation.

One possible development is locating in the second zone 3 (ie outdoors) to define a pathway that the person 1 can not leave, for example the inner city area). This range can be defined in terms of its coordinates, which are then "allowed"; the remaining area is "inadmissible".

Leaves the person 1 this "approved" area, a warning signal can be triggered, which enters at a central monitoring point, z. B. as SMS with the indication of the whereabouts of the person 1 , In this case, a variability of the permissible range as a function of the time can also be carried out in a simple manner. Certain areas can therefore be "allowed" at defined times and "forbidden" at other times (eg the route to work is permitted in the morning and evening in a defined time window, otherwise not).

Similarly, the system can be used when z. B. a student should be monitored with regard to its location. In the morning and - according to the timetable - also at noon, the way to school is "released", possibly extended by a permissible range. If this is left, a warning signal can be triggered.

A central computer in the surveillance center for old and sick people or a monitor place in the student's home can display the distance traveled on the display, where it can be tracked to intervene when needed. But other types of surveillance are possible. For example, a hospital or geriatric nurse may be informed of a pager in the event of a warning signal input.

The required components that are required for the procedure according to the invention can also be built very small if required. For example, all elements (transmitter, transponder, possibly even the mobile phone) can be integrated into a wristwatch.

LIST OF REFERENCE NUMBERS

1

Object (person)

2

first zone

2 '

subzone

2 ''

subzone

2 '' '

subzone

3

second zone

4

transmitter

5

Receiver in the first zone

5 '

receiver

5 ''

receiver

5 '' '

receiver

6 '

GPS receiver

6 ''

transmitting element

7

mobile phone

8th

transponder

9

Transition location from the first to the second zone

10

receiver

11

position

11 '

position

11 ''

position

11 '' '

position

12

Measuring device for measuring body functions

13

door

14

door

15

receiver

16

receiver

17

path

18

Zone

19

monitoring station

Claims (10)

Method for locating a person ( 1 ), at least in a first zone ( 2 ) and in a second zone ( 3 ), characterized in that a) that the location of the person ( 1 ) in the first zone ( 2 ) by a person ( 1 ) ( 4 ) in communication with at least one in the first zone ( 2 ) ( 5 ), whereby the information from the at least one recipient ( 5 ) detected position of the person ( 1 ) to a monitoring station ( 19 ), where it is registered, and b) that the location of the person ( 1 ) in the second zone ( 3 b1) that a Global Positioning System signal (GPS signal) from Global Positioning System satellites from a person ( 1 ) receiving device ( 6 ' b2) that the Global Positioning System signal directly or indirectly a transmitting element ( 6 '' ) and b3) that the transmitting element ( 6 '' ) the position coordinates of the person ( 1 ) by means of a mobile radio connection, in particular according to the GSM standard, to the monitoring station ( 19 ), where they are registered, whereby when leaving the first zone ( 2 ) and entering the second zone ( 3 ) a signal is generated, which receives the global positioning system signal receiving device ( 6 ' ) and / or the transmitting the position coordinates transmitting element ( 6 '' ), whereby when leaving the second zone ( 3 ) and re-entering the first zone ( 2 ) a signal is generated, which receives the global positioning system signal receiving device ( 6 ' ) and / or the transmitting the position coordinates transmitting element ( 6 '' ), whereby the person ( 1 ) with a measuring device ( 12 ), which is suitable for the measurement of bodily functions, being provided by the measuring device ( 12 ) in the first zone ( 2 ) ( 5 ) and / or to the person ( 1 ) transmitting element ( 6 '' ) and / or to the mobile phone ( 7 ) at least then a signal is transmitted when the meter ( 12 ) detects abnormal data, whereby in the first zone ( 2 ) ( 5 ) or about the person ( 1 ) transmitting element ( 6 '' ) or via the mobile phone ( 7 ) an emergency call signal is triggered during the transmission of a signal when abnormal data is detected, a warning signal is emitted when the communication connection between the measuring device ( 12 ) and in the first zone ( 2 ) ( 5 ) or between the meter ( 12 ) and to the person ( 1 ) transmitting element ( 6 '' ) or between the meter ( 12 ) and the mobile phone ( 7 ) is interrupted. Method according to claim 1, characterized in that the first zone ( 2 ) is a space in which no Global Positioning System signal (GPS signal) can be received. Method according to claim 2, characterized in that the first zone ( 2 ) is a building or a vehicle interior. Method according to one of claims 1 to 3, characterized in that the second zone ( 3 ) is an area outside of buildings or vehicles. Method according to one of claims 1 to 4, characterized in that on the person ( 1 ) located transmitter ( 4 ) and the at least one in the first zone ( 2 ) receivers ( 5 ) communicate via a, preferably kurzreichendes, radio signal. Method according to one of claims 1 to 4, characterized in that on the person ( 1 ) located transmitter ( 4 ) and the at least one in the first zone ( 2 ) receivers ( 5 ) communicate via a signal in the GSM standard. Method according to one of claims 1 to 6, characterized in that on the person ( 1 ) located transmitter ( 4 ), the receiving device ( 6 ' ) and the person ( 1 ) transmitting element ( 6 '' ) with a mobile phone ( 7 ) are in communication connection, preferably arranged in this. Method according to one of claims 1 to 7, characterized in that when leaving the first zone ( 2 ) and entering the second zone ( 3 ) generated signal from a person ( 1 ) transponder ( 8th ), one at the transitional location ( 9 ) from the first ( 2 ) to the second ( 3 ) Zone arranged receiver ( 10 ). Method according to one of claims 1 to 8, characterized in that in the activated state of the receiving device receiving the Global Positioning System signals ( 6 ' ) at predetermined time intervals, the position coordinates via the transmitting element ( 6 '' ) to the monitoring station ( 19 ), where these are recorded or stored there. Method according to one of claims 1 to 9, characterized in that a warning signal to the central monitoring station ( 19 ), if one on the person's arm ( 1 ) is removed or cut through, with the warning signal from a detector arranged on or in the wristband in the first zone ( 2 ) ( 5 ) or to the transmitting element ( 6 '' ) and the recipient ( 5 ) or from the transmitting element ( 6 '' ) to the monitoring station ( 19 ) is transmitted.

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