WO1996000431A1 - Remote data-acquisition system - Google Patents
Remote data-acquisition system Download PDFInfo
- Publication number
- WO1996000431A1 WO1996000431A1 PCT/EP1995/001983 EP9501983W WO9600431A1 WO 1996000431 A1 WO1996000431 A1 WO 1996000431A1 EP 9501983 W EP9501983 W EP 9501983W WO 9600431 A1 WO9600431 A1 WO 9600431A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- acquisition system
- remote data
- data acquisition
- line
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Definitions
- the invention relates to a remote data acquisition system, in particular for determining consumption in buildings, according to the preamble of claim 1.
- It uses a single receiver electronics to receive the data signals transmitted by a large number of measuring units on radio paths, to process them and to provide them to an evaluation unit.
- the security of the data transmission of a known remote data acquisition system could also be improved in that for each group of measuring units having similar transmission properties, e.g. B provides the measuring units arranged on one floor of a building, in each case an antenna, an associated receiving electronics and a pre-evaluation unit and the various pre-evaluation units via cable with a central one
- the present invention is therefore intended to provide a remote data acquisition system according to the preamble of the claim
- the remote data acquisition system there are a large number of antenna segments distributed in the building, each of which receives the transmission signals from adjacent measuring units.
- the transmission signals of measuring units further away eg from floors above or below
- the output signals of the different Tennis segments are added to the antenna line and placed on the receiving electronics. This therefore only needs to be provided once for very large buildings, which is advantageous in view of their high costs.
- the antenna line can be a radio-frequency cable, as is known as a standard television antenna cable.
- the antenna signals are preferably fed into this cable via an impedance converter, but without demodulation.
- the signals transmitted by the measuring units are reliably acquired with compact dimensions of the antenna segments.
- the development according to claim 5 is also advantageous with regard to low signal losses on the antenna line.
- 10-1-1 to l ⁇ -l-x (l) designate measuring units that are installed on the first floor of a building at various consumption points. Typical consumption points are radiators and hot water meters. x (l) should stand for the last measuring unit on the first floor.
- Each of the measuring units contains (not explicitly shown in the drawing) a measuring sensor which, for. B. a temperature sensor with a downstream integrator can be a transmitter electronics and an antenna 12.
- a measuring sensor which, for. B. a temperature sensor with a downstream integrator can be a transmitter electronics and an antenna 12.
- the construction of the measuring units 10 and the feeding of their antenna 12 can each take place as described in detail in WO-A-94/03882.
- an antenna unit 14-1 to 14-n is preferably provided on the floor in the stairwell. Details of the antenna unit 14-n are shown in the drawing, the other antenna units have the same structure.
- the antenna unit 14-n has a receiving antenna 6. , which is connected to an antenna line 22 common to the antenna units via an active coupling unit, denoted overall by 18, and a T-piece 20.
- the antenna line 22 is an RF coaxial cable, as is usually used as a television antenna cable.
- the free end of the antenna line 22 is terminated by a terminating resistor, designated overall by 24, whose resistance value corresponds to the wave resistance of the antenna line 22.
- an LC coupling network 26 is provided on the output side in the coupling unit 18, which compensates for the additional capacitance.
- the receiving antenna 16 is connected to the shielding of the antenna line 22 via a foot resistance, denoted overall by 28, and the antenna signal is applied to the inner conductor of the antenna line 22 via an amplifier stage 30.
- the ratios are selected overall (compare the dimensioning examples given in the drawing) in such a way that an internal resistance of the active antenna is obtained which goes towards infinity. If one realizes the internal resistance of the antenna unit of approximately 5000 ohms in the design of the antenna unit 14 shown in the drawing, then in a building with 10 floors there is only an additional resistance of 500 ohms in total, which acts as a loss load parallel to half the wave resistance of 37.5 Ohm is added. The reduced load resistance for the active antennas only drops to 35 ohms, which corresponds to an additional attenuation of 0.6 dB.
- a total of 32 designated receiving electronics are connected to the end of the antenna line 22.
- This has an input network 34, which again corresponds to the wave resistance of the antenna line 22, and a downstream preamplifier stage 36.
- the inner conductor of the antenna line 22 is supplied with a direct current with a direct current supply voltage VB, while the outer conductor is connected to ground GND.
- the output signal of the preamplifier stage 36 is fed to an input of an evaluation unit, designated overall by 38, which can have a structure similar to that of the evaluation unit described in WO-A-94/03882 (reference number 16 there).
- the evaluation unit 38 demodulates the various signals received via the antenna line 22, eliminates signals that are not correctly recognized, stores the correctly transmitted data and inputs them - 7 -
- intervals e.g. B. from a TEMEX card 40 on a telephone line 42 to which a billing computer of a billing company is connected.
- the antenna units 14 used for this have a simple structure and are therefore inexpensive.
- the special design of the antenna unit 14 ensures that only a small part of the power output by one antenna unit is lost in other antenna units. This can be attributed to the fact that the antenna units are high-impedance and can accomplish both impedance conversion and amplification.
- the antenna units can be designed so that the entire coupling unit 18 is installed as a unit in a flush-mounted box.
- the associated antenna 14 can then be arranged on this coupling unit in front of the corresponding building wall or can be installed embedded in the plaster of this wall.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Radar Systems Or Details Thereof (AREA)
- Selective Calling Equipment (AREA)
- Liquid Developers In Electrophotography (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK95921755T DK0767943T3 (en) | 1994-06-25 | 1995-05-25 | Remote data collection system |
HU9603422A HU222646B1 (en) | 1994-06-25 | 1995-05-25 | Remote data-acquisition system |
EP95921755A EP0767943B1 (en) | 1994-06-25 | 1995-05-25 | Remote data-acquisition system |
DE59503535T DE59503535D1 (en) | 1994-06-25 | 1995-05-25 | REMOTE DATA COLLECTION SYSTEM |
CZ19963818A CZ286134B6 (en) | 1994-06-25 | 1995-05-25 | Data communications and processing system |
PL95317534A PL177942B1 (en) | 1994-06-25 | 1995-05-25 | Method of remotely acquiring data |
SK1670-96A SK282574B6 (en) | 1994-06-25 | 1995-05-25 | Remote data-acquisition system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4422281.5 | 1994-06-25 | ||
DE4422281A DE4422281C1 (en) | 1994-06-25 | 1994-06-25 | Remote data acquisition system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996000431A1 true WO1996000431A1 (en) | 1996-01-04 |
Family
ID=6521507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/001983 WO1996000431A1 (en) | 1994-06-25 | 1995-05-25 | Remote data-acquisition system |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0767943B1 (en) |
AT (1) | ATE171001T1 (en) |
CZ (1) | CZ286134B6 (en) |
DE (2) | DE4422281C1 (en) |
DK (1) | DK0767943T3 (en) |
ES (1) | ES2123990T3 (en) |
HU (1) | HU222646B1 (en) |
PL (1) | PL177942B1 (en) |
SK (1) | SK282574B6 (en) |
WO (1) | WO1996000431A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19838912A1 (en) * | 1998-08-27 | 2000-03-02 | Bosch Gmbh Robert | module |
DE19954579C5 (en) * | 1999-11-12 | 2008-09-11 | Techem Energy Services Gmbh | Device for detecting the energy consumption of a heating system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3419344A1 (en) * | 1984-05-24 | 1985-11-28 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Antenna arrangement |
CH682352A5 (en) * | 1991-02-18 | 1993-08-31 | Sc Techn Dipl Ing Peter A Neuk | Transponder interrogation equipment for remote monitoring system - uses successively switched antenna elements spaced along coaxial cable coupled to base station providing HF interrogation signal |
WO1994003882A1 (en) * | 1992-07-29 | 1994-02-17 | Horst Ziegler | Method of transmitting measurement data |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5411822Y2 (en) * | 1972-04-01 | 1979-05-25 | ||
DE3221505A1 (en) * | 1982-06-07 | 1983-12-08 | Wolfgang Dr.-Ing. 8740 Bad Neustadt Volkrodt | Measuring arrangement for domestic energy consumption |
-
1994
- 1994-06-25 DE DE4422281A patent/DE4422281C1/en not_active Expired - Lifetime
-
1995
- 1995-05-25 DK DK95921755T patent/DK0767943T3/en active
- 1995-05-25 PL PL95317534A patent/PL177942B1/en not_active IP Right Cessation
- 1995-05-25 SK SK1670-96A patent/SK282574B6/en unknown
- 1995-05-25 AT AT95921755T patent/ATE171001T1/en active
- 1995-05-25 WO PCT/EP1995/001983 patent/WO1996000431A1/en active IP Right Grant
- 1995-05-25 ES ES95921755T patent/ES2123990T3/en not_active Expired - Lifetime
- 1995-05-25 CZ CZ19963818A patent/CZ286134B6/en not_active IP Right Cessation
- 1995-05-25 HU HU9603422A patent/HU222646B1/en not_active IP Right Cessation
- 1995-05-25 EP EP95921755A patent/EP0767943B1/en not_active Expired - Lifetime
- 1995-05-25 DE DE59503535T patent/DE59503535D1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3419344A1 (en) * | 1984-05-24 | 1985-11-28 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Antenna arrangement |
CH682352A5 (en) * | 1991-02-18 | 1993-08-31 | Sc Techn Dipl Ing Peter A Neuk | Transponder interrogation equipment for remote monitoring system - uses successively switched antenna elements spaced along coaxial cable coupled to base station providing HF interrogation signal |
WO1994003882A1 (en) * | 1992-07-29 | 1994-02-17 | Horst Ziegler | Method of transmitting measurement data |
Also Published As
Publication number | Publication date |
---|---|
HU9603422D0 (en) | 1997-02-28 |
SK167096A3 (en) | 1997-11-05 |
HU222646B1 (en) | 2003-09-29 |
DE4422281C1 (en) | 1996-02-01 |
ATE171001T1 (en) | 1998-09-15 |
CZ381896A3 (en) | 1997-08-13 |
CZ286134B6 (en) | 2000-01-12 |
PL317534A1 (en) | 1997-04-14 |
ES2123990T3 (en) | 1999-01-16 |
DK0767943T3 (en) | 1999-06-07 |
EP0767943A1 (en) | 1997-04-16 |
DE59503535D1 (en) | 1998-10-15 |
HUT76883A (en) | 1997-12-29 |
PL177942B1 (en) | 2000-02-29 |
SK282574B6 (en) | 2002-10-08 |
EP0767943B1 (en) | 1998-09-09 |
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