DE10134039A1 - Local positioning system with directional radio antenna and motion sensor has transmitter per movable object to be monitored whose signal enables position determination - Google Patents

Abstract

The system has a transmitter per movable object to be monitored whose signal enables determination of whether the object is moving or not. Signals are sent to a computer that determines the location of the transmitter. The signals are received by at least two directional antennas for position determination in a plane and at least three for position determination in three-dimensions.

Description

1. Local positioning system with directional radio antennas and Motion detectors for moving objects

The local positioning system (LPS) with directional radio antennas and On the one hand, motion detectors for moving objects are used for Monitoring old people, sick people, dogs or others Pets, on the other hand as a prerequisite for controlling Vehicles or to locate storage parts. LPS with directional radio Antennas and motion detectors are characterized in that Every moving object carries a transmitter with it Signals are recognized that the respective object is moving or not moves and where it is. The signals are from radio relay Antennas caught. At least 2 are needed to find the location of the Transmitter in one level, at least 3 to determine the location of the Determine transmitter 3-dimensional. At least 2 or 3 because of Reflections in wall passages etc. errors that can occur further antennas can be reduced or eliminated. The more Antennas, the more precisely the locations of the transmitters can be determined. The directional radio antennas can determine the angles from which the Signals arrive. Do the signals simultaneously recognize the Transmitter, many transmitters and their locations can be identified. The Motion detector gives a signal when there is movement, it can with the Positioning transmitter can be coupled or an extra Have transmitters.

A central computer is used to calculate the locations, the moving ones Channel. There can be almost any number of transmitters with their individual ones Markings, e.g. B. posted identifying numbers in central computer can be evaluated.

1.1 Notification of falling and fainting

• - 20 bis 30 Minuten baden
• - Beim Aufstehen aus dem Bett sich aufsetzen, nach 1 bis 2 Minuten aufstehen und innerhalb von 2 Minuten das Schlafzimmer verlassen. Überwacht wird das z. B. wie folgt: Sobald eine Bewegung z. B. 0,4 m über der Bettkante erfolgt, läuft das intelligente Programm und löst einen Voralarm aus, wenn die Person z. B. zurücksinkt oder auf den Boden fällt und X Minuten bewegungslos ist oder eben das Schlafzimmer nicht innerhalb von 4 Minuten verlassen hat. Wenn der alte Mensch das Armband mit dem Sender (oder dem Bewegungsmelder - zur Wiederaufladung der Batterie) abgelegt hatte und vergaß es anzulegen, kann ein Voralarm ausgelöst werden, wenn er sich (das Armband) nicht bis z. B. 8.30 Uhr bewegt hat. (Ähnliches im Wohnzimmer nach einem Nickerchen).

The main claim is characterized in that old people or sick people with such transmitters, including motion detectors. B. equipped on the wrist to determine: 1. whether the person is moving and 2. where he is, with the help of a program stored in the computer, which decides whether the old or sick person is in danger or not. Obviously he is in danger if he (specifically the broadcaster) z. B. is in the hallway on the floor and does not move for 1 minute. He is not in danger. B. if he is motionless in his bed or resting place at a certain, preset time for 15 minutes, so obviously sleeps. The floor plans of the apartments (together with

• - Bathe for 20 to 30 minutes
• - Sit up when you get out of bed, get up after 1 to 2 minutes and leave the bedroom within 2 minutes. This is monitored. B. as follows: As soon as a movement z. B. 0.4 m above the edge of the bed, the intelligent program runs and triggers a pre-alarm if the person z. B. sinks back or falls to the floor and is motionless for X minutes or has just not left the bedroom within 4 minutes. If the old person had put off the bracelet with the transmitter (or the motion detector - to recharge the battery) and forgot to put it on, a pre-alarm can be triggered if he (the bracelet) does not move up to e.g. B. 8:30 a.m. (Similar in the living room after a nap).

This information is recorded and the rooms are arranged in Questionnaires and based on model floor plans of apartments. The Evaluation serves directly as input for the computer program to enter in a mask by every secretary or already in the laptop on site or on Telephone during the interview. This data is then used with the executing Computer program transferred to the minicomputer or simple PC. This receives all information about the current Location of the monitored person and whether they are moving. The Mini computer or PC triggers an alarm if the normal power fails (and then an alarm is desired). A broken phone line could be in an extension can be replaced by a radio.

The program monitors the entire apartment, possibly the garden and the Entrance (or entrances) to determine if man is the apartment (or left the house).

If danger is detected, a pre-alarm is given. Is this pre-alarm from not acknowledged old people (or sick people). B. by pressing the transmitter several times on the wrist will result in a Emergency call center (of a house emergency service, H-N-D), a neighbor Son or daughter, directly called the rescue, a doctor, etc. - according to the stored priority list.

1.2 Supplemented by motion detectors and video cameras for extended protection

Additional motion detectors and the program protect against burglars. It can e.g. B. be programmed that movements in the house between 11:00 p.m. and 6:00 a.m. should trigger an alarm if this movement does not in the bedroom (or on the way to the toilet) begins: The same happens when the program detects that e.g. B. a 2nd person the house from where enters other than the main entrance.

Video cameras allow many extensions and good additions to Safety of seniors in health threats and offer better ones Protection against burglars even when you are away.

1.3 Supplements through pulse, temperature and blood pressure measurement

If the pulse, temperature and blood pressure monitors at certain times the values can be created with the minicomputer via a program evaluated and in the event of certain exceeding or falling short of Measured values trigger an alarm to a doctor or neighbor or else be sent regularly to the family doctor. The mini calculator needs for this of course a suitable connection, the rest is as described before.

1.4 Additional expansion to senior and single service

Some things can be identical to the surveillance of seniors, e.g. B. the Housing surveillance against burglary. Only the program changes here connected.

The main difference is that instead of the mini calculator or simple PC a normal (inexpensive) PC is available that is connected to the Internet is connected. Nevertheless, there should be the possibility that for People (e.g. older people) who have absolutely nothing to do with computer technology want to do, a child's play handling is made possible. To a PC with touchboard or voice input would not be possible with one Keyboard to have to work. All commands could be on the touchboard be written, as well as companies (with telephone numbers), doctors, police, Firefighters, friends, travel agencies, pizza service, repair shop, etc. Voice input would also be suitable with e.g. B. Numbers 1 to 50 that dial a phone number or execute computer commands such as B. call a speech recognition program for dictation and then email this letter to another via another number send certain address. The PCs ran in the normal state in the energy Economy and are activated at the push of a button. Also the connection to the TV would of course be possible.

The alarm could e.g. B. go to the DRK headquarters, the single service Companies on the market with existing headquarters.

What is important is the possibility of a call to a central office, the orders accepted and provided information.

• - Einholen von Angeboten für Reparaturen rund um Haus und Auto und um Reparatur-Termine zu vereinbaren. Die Organisation von ganzen Aufgaben wie die Reparatur eines Rohrbruchs durch einen Klempner, das Schließen der Lücke, neues Ausmalen und die Reparatur eines beschädigten Bodens samt Abrechnung mit der Versicherung.
• - Beratung was unter welchen Internetadressen gefunden wird, z. B.
• - Aktuelle Nachrichten und Zeitungsarchive
• - Lexika
• - Veranstaltungshinweise
• - Verbraucherinformationen
• - Börsenkurse
• - Reise- und Urlaubsangebote einholen und Fahrkarten beschaffen
• - Pizza und allgemein Essen termintreu ins Haus bestellen
• - Erledigung von Einkäufen mit Hausanlieferung
• - Sekretariatsarbeit, Bankabwicklung (Bezahlung von Rechnungen, Barabhebungen, Travellerchecks abholen), Gänge zur Post, Pakete verpacken usw.
• - Arzt-Friseur-Optiker- etc. Termine vereinbaren
• - Karten und Termine für Oper, Theater, Kino, Museumsbesuche usw. beschaffen, ebenso Videos
• - Erinnerungsanrufe für bestimmte Personen erledigen
• - Putzservice, Wäscheservice, Katzen, Hunde, Blumen betreuen und Babysitter termintreu organisieren
• - Gespräche mit Spezialisten, bestimmten Behördenvertretern, Ratgebern etc. vereinbaren, nachdem geeignete bzw. zuständige Personen gefunden worden waren
• - Anwesenheit bei großen Lieferung und Entgegennahme
• - Für die Aufbewahrung von gelieferten Waren, insbesondere Essen, werden wärmeisolierten Boxen mit Schnappschloss geliefert, in die bei Abwesenheit die Waren vor der Haustür deponiert werden können
• - Auf den PC werden bestimmte Programme auf Wunsch installiert (und wenn nötig gewartet z. B. Anti-Viren-Programme) z. B.:
• - Ein medizinisches Selbstdiagnose-Programm
• - Deutsche und europäische Fahrpläne
• - Schach und andere Spiele
• - free ware über Reisen, Wissensgebiete, Spiele, Musik usw. fachmännisch ausgesucht und durch Umfragen die Akzeptanz bestätigt
• - Auf Wunsch kann eine Verbindung zu ausgewählten anderen Teilnehmern des Single Service hergestellt werden

Typical tasks would be:

• - Obtaining offers for repairs around the house and car and to make repair appointments. The organization of entire tasks such as the repair of a pipe break by a plumber, the closing of the gap, new coloring and the repair of a damaged floor, including settlement with the insurance company.
• - Advice on what is found under which Internet addresses, e.g. B.
• - Latest news and newspaper archives
• - Encyclopedias
• - Event information
• - consumer information
• - stock market prices
• - Obtain travel and vacation offers and obtain tickets
• - Order pizza and general food on time in the house
• - Doing purchases with home delivery
• - Secretarial work, bank processing (paying bills, cash withdrawals, traveler checks), going to the post office, packing packages, etc.
• - Arrange doctor-hairdresser-optician etc. appointments
• - Obtain tickets and dates for opera, theater, cinema, museum visits etc., as well as videos
• - Make reminder calls for specific people
• - Grooming service, laundry service, taking care of cats, dogs, flowers and organizing babysitters on time
• - Arrange discussions with specialists, certain government officials, advisors, etc. after suitable or responsible persons have been found
• - Presence with large deliveries and acceptance
• - For the storage of delivered goods, especially food, heat-insulated boxes with a snap lock are supplied, in which the goods can be deposited at the front door when you are away
• - Certain programs can be installed on the PC on request (and if necessary, e.g. anti-virus programs). B .:
• - A medical self-diagnosis program
• - German and European timetables
• - chess and other games
• - Free goods were professionally selected for travel, areas of knowledge, games, music etc. and acceptance was confirmed by surveys
• - On request, a connection to selected other subscribers of the single service can be established

These services are provided through portal services. So travel agencies are engaged, secretaries close to the place, Housewives, early retirees, cleaning women etc. They will be more direct Advertising and engaged through employment offices for specific jobs, Contracts concluded and in databases with addresses, telephone and e- mail numbers filed. In larger places, a local organizer will be there employed, who finds and supports the part-time employees (e.g. 630 DM jobs) Performance and reliability monitored.

1.5 There are various solutions for dog owners

• - Keep dogs within an area without a fence: the previous one very much expensive and inflexible solution: the dog receives a collar with two Current contacts; if he approaches a buried cable, he receives increasing current surges the closer it is to the electrically charged cable approaches. Digging in such a cable is very complex, especially under Asphalt etc. With the new system, only the area is transferred to the PC entered and via the transmitter on the collar the location of the dog determined; If he approaches the border, he receives increasing surges, triggered by the PC via a transmitter. You can do the same with make any pets.
• - Bell prevention: A vibrator is currently being used to determine whether the Dog barks and then receives a power surge after a "warning". At the In the new system, the time is programmed in which time it barks may and may not, so he can use the collar (near the house) always wear. Likewise, he should z. B. barking at home etc., any flexible, as requested by the dog owner.
• - Training / educational device: As a variant of the above devices usable
• - Location of hunting dogs in z. B. a badger or fox burrow: Here the receivers would have to be measured flexibly and geometrically be set up. On a laptop, the whereabouts and the Movement of the dog made visible.

1.6 For logistics

Industrial trucks can be flexibly controlled via PC by the factory hall is stored as a plan. Today, induction cables have to be in the ground be let in; each change in the workflow means one Change in cable routing. Or there are elaborate transmitters and Receiver on board with computer evaluation installed in the new system the specification only has to be changed on the PC. Priority rules for many Vehicles can be programmed, e.g. B. right before left.

Likewise, sports fields, but also parks by remote controlled Lawnmowers are mowed, watered (individual flower beds e.g.), fertilized or whatever, very specifically.

Cranes can also be controlled as flexibly as unmanned people Fire engines in case of fire with toxic gases etc.. , , a whole range of new, flexible applications is conceivable.

1.7 A chaotic camp

Messy means that newly stored parts go to any free Place. So far, the effort has been considerable to place these in that PPS system (if available) and of course every withdrawal as well. With the new LPS, small transmitters with numbers are placed on the parts glued - done. The local one appears automatically on the PC on the screen Location with the number of the transmitter. Suitable in confusing camps with large parts or on construction sites. The control of high-bay warehouses would be conceivable, also a coupling with the very inexpensive Transponder technology for many small parts as sub-groups.

2. The LPS computer program 2.1 drawing program

The floor plan and layout of an apartment or the Floor plans and elevations drawn in a multi-story house.

The respective location of the movable transmitter is from another Program module recognized by the x, y, z coordinates in a file (Excel for example) can be saved. With the transmitter all rooms walked off by holding the transmitter on every corner and coming in and out is turned off. The coordinates are saved and with the drawn drawing program. The drawing then shows whether the entry was correct. Of course, the floor plan and elevation can also be over a CAD program can be entered.

2.2 Marking the rooms

When the floor plan is ready, the next step must be done: Every room of the apartment and also every special area of one Room must be identified as such.

In the drawn plans, certain areas are moved to another Filed module of the program LPS as "Categories", z. B. a bed, 40 cm high and 2 × 1 m large as a special area (e.g. No. 1) recorded. The moving transmitter (i.e. the monitored one) Person) in area # 1 on so the LPS program knows that there the person z. B. may be motionless for 10 hours without a Alarm is triggered.

The following solution is suggested: With the mouse in the Drawing a room or an area (e.g. bed, couch) clicked with type in a name on the keyboard, e.g. B. Wz, Sz 1, Sz 2, hall, toilet, Bad, K (eller), Kü (che), B (ett), C (ouch) etc. in a protocol then recorded, e.g. Example: Tool points 8, 9, 10, 11, 12, 13, 14 etc. Ideally, Wz would also be written in the plan wherever one clicked with the mouse. (For control for the senior and for Error prevention). Within the W (ohn) z (immers) also the drawn C (ouch) clicked and labeled C (or with couch).

2.3 Allocate rooms or areas to categories

The program registers that the transmitter moves from one room to another other moves. Depending on the previously defined category of the room the alarm system must respond, e.g. B. only movement is normal, so harmless as in the hallway - or rest + movement like on a couch. These categories are recorded in a mask, e.g. B. with K1 to K9.

One of the categories is called: Between 0 and 30 cm above the floor in an alarm is triggered in all rooms if the transmitter there is longer than Is motionless for 20 seconds (x seconds). Alarm always means Pre-alarm followed by a real alarm if it is not turned off - by touching the transmitter twice or more (preferred under the clock) with one finger: both trigger active alarm as also switch off pre-alarm.

If the apartment or house is left (work or rest in the Garden) there are also categories. Resting places or boundaries (the a senior should not leave for security reasons) must part the basic drawing and how living spaces are treated.

An annual and / or daily schedule must be provided for each room / location category be deposited. It specifies from when to when (time, Calendar day, holiday etc.) exercise or rest is normal. In the hallway probably only movement is normal and an alarm is triggered (if there is nothing to read, phone calls etc.) - after 20 or 30 Seconds of immobility, a lot on the phone (own category) longer etc. It should also be possible regardless of the time Enter hazard scenario for certain categories, which z. B. only applies to the bed or the couch.

2.4 Some program features

• - Wenn die Alarm- oder Service-Zentrale anruft, soll ein Lautsprecher in der Nähe des Senders aktiviert werden (oder alle). Das Programm "weiß" wo der Sender ist.
• - Bei Einbruch: Alle Lautsprecher sollen sehr laut vorgegebenen Text (mit tiefer Stimme) zur Vertreibung des Einbrechers von sich geben.

Activate loudspeaker:

• - When the alarm or service center calls, a loudspeaker near the transmitter should be activated (or all). The program "knows" where the transmitter is.
• - In the event of a break-in: All loudspeakers should emit very loud text (with a deep voice) to expel the burglar.

• - Bei Einbruch Polizei die Adresse und Ursache mitteilen (z. B.: Hier ist das Alarmsystem von Talstraße 13 in Oberrodenbach, die Seniorin Frau Müller schläft und im Wohnzimmer bewegt sich ein Mensch, er kam. . . . . aus dem Keller).
• - Bei Ohnmacht an Alarmzentrale, . . . . . . . . bewegt sich im Bad nicht mehr.
• - Bei Systemfehler an Service-Zentrale: "Der Sender sendet seit 1 Stunde nicht mehr"; ein Empfänger ist ausgefallen; der Computer ist abgestürzt usw.

Store language texts at alarm or service center:

• - In the event of a break-in, inform the police of the address and cause (e.g. here is the alarm system from Talstrasse 13 in Oberrodenbach, the elderly Mrs. Müller is sleeping and a person is moving in the living room, he came ... from the basement).
• - If the alarm center faints,. , , , , , , , no longer moves in the bathroom.
• - In the event of a system error at the service center: "The transmitter has not been broadcasting for 1 hour"; a recipient has failed; the computer crashed etc.

2.5 Burglary protection

The program should also react to a break-in: as soon as in one certain rooms in a certain time range (e.g. at night in the Living room) or if the monitored person is in another There is a room and a motion detector responds (via a transmitter he knows his number so that the program knows from which room the signal comes), an alarm should be triggered z. B. to the Police or a central office (to be entered alternatively).

The program should also have the possibility in the room where the motion detector responded and if the monitored person is not there is a video camera and possibly light (or only light) at the same time switch on and save the recordings in the PC and from to be sent there to a central office and / or on the Screen again.

Times should also be entered here. For example, a cleaning lady could have one Have keys and come between 8 a.m. and 12 p.m. - or a child etc. At these times, no alarm should be triggered become.

An alarm should be triggered at night if the movement is not in the Bedroom begins - or if the movement is somewhere other than on the way to the toilet begins because the bracelet has been removed beforehand. The same applies if the alarm tape carrier has left the house and has not switched off the intruder detector on the PC.

In addition to the alarm to a central office or the police should be entered be that at certain times z. B. at night or in the absence a speaker is turned on to the burglar by a Get warning to leave home.

If video cameras are used, the absolutely safe maintenance of the Privacy important. You have to make sure through the mini computer / PC that the video cameras are inactive, so they do not start operating can, if they are not released by agreed criteria. Maybe they should be visible in the bathroom, bedroom or anywhere else in the normal case be directed to the ground and only swing up when taking pictures make, so if programmed need. The criteria are from Mini computer / PC defined on site, so the video cameras can be used by the Headquarters cannot be switched on unless this is definitely agreed. We assume that an alarm is always sent via an H-N-D bracelet Push button can be triggered. In this case too, everyone Video cameras of the apartment or house via the mini computer / PC activated and observed the house, according to the agreements with Seniors or singles met how the person or house is protected shall be. The house can therefore be monitored even when you are away be, e.g. B. by regular recordings of all rooms and sending the (individual) images over the Internet to an address that are retrieved can.

In no case are continuous recordings and their storage necessary.

2.6 Failure monitoring of the devices

The program must also be activated in the event of certain failures (power failure Motion detector does not respond, even though the monitored person is there is, the transmission signal remains off, the PC fails, etc.) Execute consequences: e.g. B. alarm in headquarters or / and a message on the screen and write it down in a log that the Motion detector z. B. the hallway does not work. Alternatives should be specifiable.

All alarms and pre-alarms should also be detailed (where, why, when) be logged - to check whether everything works. envoy Alarms should be "acknowledged" immediately via loudspeakers become: to calm down, or to z. B. with the left Transmitter to stop the pre-alarm.

As for the broadcaster, you should type in a category that there is a pre-alarm with a long time (x minutes) until the alarm If the transmitter was forgotten to put on: In the morning next to the bed, in the bathroom, in the kitchen. This pre-alarm should also come from the Computers come and possibly give a light signal (for the hard of hearing): z. B. Lights in the apartment on and off at regular intervals turn off. It would be best to indicate where the Sender is (or on the computer in writing - or show in the plan if this is easier or both).

2.7 Pulse, temperature, blood pressure measurement

A corresponding own module should be connectable here.

2.8 Single service

A corresponding own module should be connectable here.

2.9 Remote surveillance of the house by video cameras and Control of devices over the phone or the Internet

A corresponding own module should be connectable here.

3. Details about the transmitter and the connections PC, transmitter, receiver and phone 3.1 transmitter

3.1.1 Press ≥ 2 times: Active alarm: contact via finger (like lift)
3.1.2 Press twice after pre-alarm: suppress alarm
3.1.3 Microphone to speak in: Switch on using the button on the side
3.1.4 Can be charged by induction by storing overnight
3.1.5 Integrated or glued under a clock. The bracelet is the antenna

3.2 Connections of the PC with 3.2.1 Wristband transmitter> PC

Inclusion of the floor plan via transmitter → in Excel table. Not a special one Switch transmitter but PC program to "Recording" and switch on + switch off the reception mode by pressing a button, so that only 1 Coordinate set (x, y, z) is recorded - per corner point.

3.2.2 Receiver → PC

To calculate the location of the transmitter: 4 cables of the same length to the box. From box to PC via transmitter or cable. Battery for a short time in the event of a power failure.

3.2.3 PC → telephone

To answer the call using the microphone in the wristband, after using Speakers come: turn on the microphone by hand, Connection through transmitter to PC, where forwarding to the phone takes place.

HND or police or private person alert. Choose from one of the 3 predefined telephone numbers via modem: selection by PC Program. If not available, the next number is dialed. choice a number even after a power failure. B. at break-in (alarm provided) or in program z. B. for the sick etc. provided. With battery Operation on request.

3.2.4 Telephone> PC: To give an alarm or to suppress a pre-alarm

From HND / police / private person Call: x loudspeakers are turned on PC program that decides whether the speakers are switched on or whether the normal telephone should ring.

4. Motion detectors without location (LPS)

• - Drucksensoren, weil Ruhepositionen mit Möbelstücken verbunden sind
• - Magnetfeldänderungen bei den Ruhepositionen, die durch die Anwesenheit einer Person (einer Masse) gestört bzw. nachhaltig verändert werden.
• - Einfache Bilderkennung, also ob in bestimmten Bereichen des Bildes, das eine stationäre Videokamera alle paar Sekunden aufnimmt, Bewegung oder Ruhe herrscht. Konkret kann also die Videokamera durch einen focusierten Bewegungsmelder aktiviert werden. Im Bild ist vorgegeben, wo die Ruhezone, z. B. die Couch ist, und die angrenzenden Bildzonen sind Bewegungszonen, die auch die Bewegungsrichtung feststellen. Kollabiert also die Person nach dem Aufstehen, so ist klar, dass die Bewegungslosigkeit ein Problem ist.
• - Bewegungsmelder an einer Wand der focusiert ist und per Funk die Anwesenheit melden. Zuerst wird eine gleichzeitige Bewegung vom Handgelenksender und vom stationären Bewegungsmelder erkannt. Anschließend kann eine erlaubte Bewegungslosigkeit für eine bestimmte Zeit eintreten.

4.1 A motion detector is worn on the wrist, which reports every 5 seconds whether the hand is moving. The computer then "knows" that man is moving, but he does not know whether there is a problem if he is not moving, because this is either an accident or an "allowed" rest, e.g. B. is in bed or on the couch. So the quiet zones must also be monitored, for which there are different options:

• - Pressure sensors because rest positions are associated with furniture
• - Magnetic field changes in the resting positions, which are disturbed or permanently changed by the presence of a person (a mass).
• - Simple image recognition, i.e. whether there is movement or rest in certain areas of the image that a stationary video camera takes every few seconds. Specifically, the video camera can be activated by a focused motion detector. The picture shows where the quiet zone, e.g. B. is the couch, and the adjacent image zones are movement zones that also determine the direction of movement. So if the person collapses after getting up, it is clear that immobility is a problem.
• - Motion detector on a wall that is focused and report presence by radio. First, a simultaneous movement from the wrist transmitter and the stationary motion detector is detected. Permitted immobility can then occur for a certain time.

4.2 Types of motion detectors

Our favorite for the wrist motion detector is a fluxgate Compass. With 2 field plates - for the x- and y-planes - as a sensor Direction vector set so that every movement is registered electronically becomes. A part with 2 axes costs less than DM 100 and fits under a watch.

Simple devices are also conceivable in which a permanent magnet Changes in location induced a current or devices similar to the triggers for Airbags.

Claims (1)

1. A local positioning system with directional radio antennas and motion detectors for moving objects, characterized in that each moving object receives a transmitter, through whose signals it is recognized that the respective object is moving or not moving, by the motion detector via a transmitter sends to a computer and where it is located by sending signals through a transmitter to determine the location of the transmitter. The signals are picked up by microwave antennas. At least 2 are necessary to determine the location of the transmitter on one level, at least 3 to determine the location of the transmitter in 3 dimensions. At least 2 or 3, because reflections can lead to wall penetrations etc., which can be reduced or eliminated by further antennas. The more antennas, the more precisely the locations of the transmitters can be determined. The directional radio antennas can determine the angles from which the signals arrive. If the signals recognize the transmitter at the same time, many transmitters and their locations can be identified. The motion detector gives a signal when there is movement, it can be coupled to the location transmitter or have an extra transmitter.
The main claim is characterized in that old people or sick people with such transmitters z. B. equipped on the wrist to determine: 1. whether the person is moving and 2. where he is, using a program stored in the computer - with special zones of the person's stay - that also decides whether the old or sick person or these people are in danger or not and then automatically dials one or more predefined telephone numbers if required.