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DE10116972A1 - Data transmission system has transmitter/receiver unit in each device connected to directional radio antenna; devices are more than 50 m. apart, at least one connected to network - Google Patents

Data transmission system has transmitter/receiver unit in each device connected to directional radio antenna; devices are more than 50 m. apart, at least one connected to network

Info

Publication number
DE10116972A1
DE10116972A1 DE10116972A DE10116972A DE10116972A1 DE 10116972 A1 DE10116972 A1 DE 10116972A1 DE 10116972 A DE10116972 A DE 10116972A DE 10116972 A DE10116972 A DE 10116972A DE 10116972 A1 DE10116972 A1 DE 10116972A1
Authority
DE
Germany
Prior art keywords
data transmission
devices
network
transmission system
transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE10116972A
Other languages
German (de)
Inventor
Thomas Kleiner
Philippe Pretre
Daniel Matter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Research Ltd Switzerland
Original Assignee
ABB Research Ltd Switzerland
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 ABB Research Ltd Switzerland filed Critical ABB Research Ltd Switzerland
Priority to DE10116972A priority Critical patent/DE10116972A1/en
Publication of DE10116972A1 publication Critical patent/DE10116972A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

The data transmission system has a Bluetooth transmitter/receiver unit in each device (11,12) for data transmission in the ISM band with a carrier frequency of the order of 2.4 GHz. Each transmitter/receiver unit is connected to a directional radio antenna (21,22). The devices are more than 50 m. from each other and at least one device is connected to further devices via a network.

Description

Einleitungintroduction

Die Bluetooth Technologie wurde für die kabellose Kommunikation von elektronischen Geräten untereinander entwickelt. Mobile Geräte, die mit Bluetooth Chips ausgerüstet sind (z. B. Computer, Drucker, Handys, Messinstrumente etc.), können in einem Netzwerk auf kurze Distanz untereinander Daten austauschen. Die typische Reichweite einer Funkverbindung zwischen zwei Bluetooth-Modulen beträgt 10 m. Aufgrund gesetzlicher Vorschriften, darf die Sendeleistung 1 mW nicht überschreiten.Bluetooth technology was developed for wireless communication between electronic devices. Mobile devices that are equipped with Bluetooth chips (e.g. computers, printers, cell phones, measuring instruments, etc.) can exchange data with each other over a short distance in a network. The typical range of a radio connection between two Bluetooth modules is 10 m. Due to legal regulations, the transmission power must not exceed 1 mW.

Für viele Anwendungen ist es aber notwendig, Daten über eine grössere Distanzen (z. B. bis 100 m) zu übertragen. Sind bei einer solchen Anwendung beide Geräte statisch d. h. nicht mobil (Wettersensoren auf einem Mast, Verbindung zwischen zwei Gebäuden, Überwachungskameras, Sicherheitsanlagen etc.) so könnten solche Strecken zwar mitttels Richtfunk überbrückt werden, der Einsatz eines Kabels ist für solche Distanzen aber kostengünstiger.For many applications, however, it is necessary to store data over large distances (e.g. up to 100 m) to be transferred. In such an application, are both devices static d. H. Not mobile (weather sensors on a mast, connection between two buildings, Surveillance cameras, security systems etc.) such routes could indeed be Directional radio can be bridged, but the use of a cable is for such distances cost-effective.

Stand der TechnikState of the art

Auf dem Markt sind Netzwerke wie "Wireless LAN" bis 30 m, und proprietäre Technologien oder auf "Wireless LAN" basierende Technologien wie IEEE 802.3 (Ethernet) für Richtfunkstrecken erhältlich (Reichweite bis zu 16 km), z. B. von der Firma Gemtek (http:/ / www.gemtek.com.tw/). Alle diese Systeme arbeiten wie Bluetooth im 2.4 GHz ISM (Industrial Scientific Medicine) Band.Networks such as "Wireless LAN" up to 30 m, and proprietary technologies or technologies based on "Wireless LAN" such as IEEE 802.3 (Ethernet) for microwave links are available on the market (range up to 16 km). B. from the company Gemtek (http: / / www.gemtek.com.tw/). All of these systems work like Bluetooth in the 2.4 GHz ISM (Industrial Scientific Medicine) band.

Ideeidea

Durch die Verwendung eines Bluetooth Moduls mit einer geeigneten Richtfunkantenne (z. B. eine Parabolspiegelantenne oder eine Yagi-Antenne, d. h. eine Anordnung von Stabantennen mit Richtcharakteristik), lässt sich die Reichweite der Funkverbindung zwischen zwei Geräten erhöhen. Die Bluetooth Module werden hier als Brücke "missbraucht", die Netzwerkfähigkeiten der beiden beteiligten Module bleiben in der Regel ungenutzt. By using a Bluetooth module with a suitable directional radio antenna (e.g. a parabolic mirror antenna or a Yagi antenna, d. H. an arrangement of rod antennas with directional characteristic), the range of the radio connection between two Increase devices. The Bluetooth modules are "misused" here as a bridge Network capabilities of the two modules involved are usually not used.  

Vorteile
benefits

  • a) Viel kleinere Kosten im Vergleich zu herkömmlichen proprietären oder "Wireless LAN" Technologien, durch die Verwendung der Bluetooth Technologie.a) Much lower costs compared to conventional proprietary or "wireless LAN" Technologies through the use of Bluetooth technology.
  • b) Grössere Abhörsicherheit als "Wireless LAN" Lösungen.b) Greater security against eavesdropping than "wireless LAN" solutions.
  • c) Bluetooth Verbindung über grössere Strecken als 10 m.c) Bluetooth connection over distances greater than 10 m.
Nachteiledisadvantage

  • a) Geringere Übertragungsrate als konventionelle Systeme.a) Lower transmission rate than conventional systems.
  • b) Die Richtfunkstrecke arbeitet als Brücke, zwischen zwei Geräten, nicht als Netzwerk. Die Kommunikation ist nur zwischen zwei Teilnehmern möglich. Diese können allerdings als Gateway zu einem Netzwerk fungieren.b) The directional radio link works as a bridge, between two devices, not as a network. The Communication is only possible between two participants. However, these can be used as Act as gateway to a network.
  • c) Verbindung nur zwischen statischen Geräten, da eine Ausrichtung der Richtfunkantenne notwendig ist.c) Connection only between static devices, since an alignment of the directional radio antenna necessary is.
Figurencharacters

Fig. 1 zeigt eine erste Ausführungsform der Erfindung, bei welcher ein Personal Computer als erstes Gerät 11 mit einer Wetterstation als zweites Gerät 12 über eine Richtfunkverbindung kommuniziert. An die für die Datenübertragung nach dem Bluetooth-Standard vorgesehenen, an die Geräte 11, 12 gekoppelten Sende/Empfangseinheiten sind dabei Richtflinkantennen 21, 22 angeschlossen. Die Signale, welche von den Sende/Empfangseinheiten erzeugt werden, werden dabei direkt auf die Richtfunkantennen 21, 22 geleitet und von diesen abgestrahlt. Da die Sende/Empfangseinheiten von Bluetooth Modulen bereits ein HF Radioteil umfassen, sind zusätzliche Verstärker nicht notwendig, können aber zur Erhöhung der Reichweite vorgesehen werden. Fig. 1 shows a first embodiment of the invention in which a personal computer communicates the first device 11 with a weather station as the second device 12 via a radio link. Directional fast antennas 21 , 22 are connected to the transmitting / receiving units provided for the data transmission according to the Bluetooth standard and coupled to the devices 11 , 12 . The signals which are generated by the transmitting / receiving units are passed directly to the directional radio antennas 21 , 22 and emitted by them. Since the transmitter / receiver units of Bluetooth modules already include an HF radio part, additional amplifiers are not necessary, but can be provided to increase the range.

Fig. 2 zeigt eine Richtfunkverbindung zwischen einem ersten Gerät 11 und einem zweiten Gerät 12, welches an ein Netzwerk 30 angekoppelt ist und als Gateway für die Kommunikation zwischen diesem Netzwerk 30 und dem ersten Gerät 11 dient. Das Netzwerk 30 kann beispielsweise ein Bluetooth Netzwerk (wie in Fig. 2) oder ein Ethernet Netzwerk sein, wobei bis auf das stationäre zweite Gerät 12 alle weiteren Geräte des Netzwerks 30 mobil sein können. In Fig. 3 ist eine erfindungsgemässe Richtfunkverbindung zwischen einem Ethernet Netzwerk 31 und einem Bluetooth Netzwerk 32 dargestellt. Fig. 2 shows a radio link between a first device 11 and second device 12 which is coupled to a network 30 and a gateway for communication between the network 30 and the first device 11 is used. The network 30 can be, for example, a Bluetooth network (as in FIG. 2) or an Ethernet network, with the exception of the stationary second device 12, all other devices of the network 30 can be mobile. In Fig. 3 an inventive radio link between an Ethernet network 31 and a Bluetooth network 32 is shown.

Fig. 4 zeigt eine Richtfunkverbindung mit einem Repeater 4, mit dem z. B. um Hausecken oder um andere Hindernisse herum gesendet werden kann. Eine solche Relaisstation kann mit einem einzigen Bluetooth Modul, dank dessen Netzwerkfähigkeiten, betrieben werden, wenn ein Antennendesign mit zwei Vorzugs-Empfangs/Abstrahlrichtungen verwendet wird. Der Repeater 4 kommuniziert in diesem Fall mit den beiden anderen Modulen 11, 12, welche keine direkte Verbindung zueinander haben. Fig. 4 shows a radio link with a repeater 4 , with the z. B. around house corners or around other obstacles. Such a relay station can be operated with a single Bluetooth module, thanks to its network capabilities, if an antenna design with two preferred reception / radiation directions is used. In this case, the repeater 4 communicates with the two other modules 11 , 12 , which have no direct connection to one another.

Claims (4)

1. Datenübertragungssystem zur drahtlosen Verbindung zweier Geräte (11, 12), wobei die Geräte (11, 12) stationär sind und über eine Bluetooth Sende/Empfangseinheit zur Datenübertragung im ISM-Band mit einer Trägerfrequenz im Bereich von 2.4 GHz verfügen, dadurch gekennzeichnet, dass die Sende/Empfangseinheiten je an eine Richtfunkantenne (21, 22) angeschlossen sind.1. Data transmission system for the wireless connection of two devices ( 11 , 12 ), the devices ( 11 , 12 ) being stationary and having a Bluetooth transmitter / receiver unit for data transmission in the ISM band with a carrier frequency in the range of 2.4 GHz, characterized in that that the transmitter / receiver units are each connected to a directional radio antenna ( 21 , 22 ). 2. Datenübertragungssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Geräte (11, 12) mehr als 50 m voneinander entfernt sind.2. Data transmission system according to claim 1, characterized in that the devices ( 11 , 12 ) are more than 50 m apart. 3. Datenübertragungssystem nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Gerät (12) über ein Netzwerk (32) mit weiteren Geräten verbunden ist.3. Data transmission system according to claim 1, characterized in that at least one device ( 12 ) is connected to other devices via a network ( 32 ). 4. Datenübertragungssystem nach Anspruch 1, dadurch gekennzeichnet, dass ein Bluetooth- Modul (4), dessen Sende/Empfangseinheit an eine Antenne mit zwei Empfangs/Abstrahlrichtungen angeschlossen ist, als Repeater vorgesehen ist.4. Data transmission system according to claim 1, characterized in that a Bluetooth module ( 4 ), whose transmitting / receiving unit is connected to an antenna with two receiving / radiation directions, is provided as a repeater.
DE10116972A 2001-04-05 2001-04-05 Data transmission system has transmitter/receiver unit in each device connected to directional radio antenna; devices are more than 50 m. apart, at least one connected to network Withdrawn DE10116972A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10116972A DE10116972A1 (en) 2001-04-05 2001-04-05 Data transmission system has transmitter/receiver unit in each device connected to directional radio antenna; devices are more than 50 m. apart, at least one connected to network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10116972A DE10116972A1 (en) 2001-04-05 2001-04-05 Data transmission system has transmitter/receiver unit in each device connected to directional radio antenna; devices are more than 50 m. apart, at least one connected to network

Publications (1)

Publication Number Publication Date
DE10116972A1 true DE10116972A1 (en) 2002-10-10

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DE10116972A Withdrawn DE10116972A1 (en) 2001-04-05 2001-04-05 Data transmission system has transmitter/receiver unit in each device connected to directional radio antenna; devices are more than 50 m. apart, at least one connected to network

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1480393A1 (en) 2003-05-21 2004-11-24 Sony Ericsson Mobile Communications AB Communication system providing information on location dependent and/or situation aware services
DE102007027169B4 (en) * 2007-06-13 2010-11-11 Aipermon Gmbh & Co. Kg Bluetooth network with repeater, Bluetooth network for transmission of health-relevant data and procedure for setting up a Bluetooth network with repeater

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520024A1 (en) * 1995-05-31 1996-12-05 Siemens Ag Universal mobile telecommunication system
WO1999065152A1 (en) * 1998-06-05 1999-12-16 Epfl Service Des Relations Industrielles (Sri) Device for a communications system and corresponding communications system
WO2000051199A2 (en) * 1999-02-11 2000-08-31 Ericsson, Inc. Systems and methods for coaxially coupling an antenna through an insulator and for amplifying signals adjacent the insulator
DE19951371A1 (en) * 1999-10-26 2001-05-03 Nokia Mobile Phones Ltd High-frequency circuit with a connector for a printed antenna
WO2001039103A1 (en) * 1999-11-29 2001-05-31 Tagmaster Ab Portable communications unit
DE19957534A1 (en) * 1999-11-30 2001-06-21 Infineon Technologies Ag Method for controlling antennas of a receiving device in a radio system, in particular a mobile radio system
WO2001059938A2 (en) * 2000-02-12 2001-08-16 Qualcomm Incorporated Multiple band wireless telephone with multiple antennas

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520024A1 (en) * 1995-05-31 1996-12-05 Siemens Ag Universal mobile telecommunication system
WO1999065152A1 (en) * 1998-06-05 1999-12-16 Epfl Service Des Relations Industrielles (Sri) Device for a communications system and corresponding communications system
WO2000051199A2 (en) * 1999-02-11 2000-08-31 Ericsson, Inc. Systems and methods for coaxially coupling an antenna through an insulator and for amplifying signals adjacent the insulator
DE19951371A1 (en) * 1999-10-26 2001-05-03 Nokia Mobile Phones Ltd High-frequency circuit with a connector for a printed antenna
WO2001039103A1 (en) * 1999-11-29 2001-05-31 Tagmaster Ab Portable communications unit
DE19957534A1 (en) * 1999-11-30 2001-06-21 Infineon Technologies Ag Method for controlling antennas of a receiving device in a radio system, in particular a mobile radio system
WO2001059938A2 (en) * 2000-02-12 2001-08-16 Qualcomm Incorporated Multiple band wireless telephone with multiple antennas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1480393A1 (en) 2003-05-21 2004-11-24 Sony Ericsson Mobile Communications AB Communication system providing information on location dependent and/or situation aware services
DE102007027169B4 (en) * 2007-06-13 2010-11-11 Aipermon Gmbh & Co. Kg Bluetooth network with repeater, Bluetooth network for transmission of health-relevant data and procedure for setting up a Bluetooth network with repeater

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