WO2000041458A2 - Verfahren und einrichtung zur sendesignalüberwachung - Google Patents
Verfahren und einrichtung zur sendesignalüberwachung Download PDFInfo
- Publication number
- WO2000041458A2 WO2000041458A2 PCT/DE2000/000035 DE0000035W WO0041458A2 WO 2000041458 A2 WO2000041458 A2 WO 2000041458A2 DE 0000035 W DE0000035 W DE 0000035W WO 0041458 A2 WO0041458 A2 WO 0041458A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- bus
- circuit
- message
- receiver
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults
- H04L25/085—Arrangements for reducing interference in line transmission systems, e.g. by differential transmission
Definitions
- the invention initially relates to a method for transmitting and receiving, wherein a sent signal is compared with a returning signal for function control.
- the returning signal represents the transmitted signal.
- the invention relates in particular to a method and to a device for transmitting and receiving in a building system technology bus that carries energy and message signals, in particular in the EIBA (European Installation Bus Association) bus.
- EIBA European Installation Bus Association
- a sent message signal is compared with the message signal coming back from the bus to check the function.
- a bus coupler of a transmitting bus participant compares its transmit signal with the signal returning from the bus, which signal is sent back by another participant for the function check. Such a comparison can be used to detect an error in the transmission stage or the reception stage. If the sent and the returning signal are different, this is understood as an error message by the system. The transmission stage is then blocked in order to avoid incorrect behavior of the subscriber and interference with the system. Other facilities also work according to this principle. Such an error message also arises without reason if the transmission stage is functioning, if the network voltage drops, for example as a result of a voltage breakdown on the bus, to such an extent that it is no longer possible to properly evaluate the transmitted message and the returning message. In such a case, the transmission stage would be blocked for no reason and the subscriber switched off for no reason.
- the invention has for its object to develop a method for transmitting and receiving, in which the monitoring of the transmission signal does not lead to unjustified shutdowns.
- the described object is achieved by a method according to claim 1. This ensures that the transmission circuit is only switched off in the event of an error, but not in the event of voltage dips.
- the solution to the problem described for a bus according to claim 2 is achieved in that in the event of a voltage dip on the bus below a predetermined value at which the message signal coming back from the bus can no longer be evaluated with sufficient certainty, the message signals to be sent are fed directly to the receiver become. As a result, the monitoring is carried out directly without a detour via the bus, so that a comparison is also possible when a signal is sent.
- the described task is also solved by a transmitting and receiving stage according to claim 3. It is again assumed that a sent message signal is compared with the message signal coming back from the bus for function control, a mismatch leading to an error flag being set and the station being blocked .
- the receiver is connected at its output to an OR circuit, the input of the transmitter being connected to an AND circuit, to which an output of a device for monitoring the bus voltage is also connected is.
- the output of the AND circuit is also connected to an input of the OR circuit.
- a signal is output to the AND circuit. If a transmission signal is present at the same time, the AND circuit forwards a signal to one input of the OR circuit, which, regardless of whether a signal returns, a signal passes on, as is the case with an intact transmission circuit. If the voltage is sufficient, the voltage monitor does not emit a signal, so that no signal is passed on by the AND circuit.
- the OR circuit When a signal is received, the OR circuit passes on a signal which corresponds to a functioning transmission stage. If the transmitter is defective, no return signal can be received, so that there is no signal from the receiver at the OR circuit. If the voltage is intact, the voltage monitor does not send any signal to the AND circuit. The transmission voltage at the transmitter arrives as a signal to the AND circuit, which, however, cannot pass on a signal, since no signal is present at its second signal. If the transmitter is defective, the receiver cannot receive a returning signal, so that no signal arrives at the OR circuit, so that it cannot emit a signal either. In the event of a voltage dip, the circuit acts as if the transmission signal were routed directly back to the receiver without running over a bus.
- the AND circuit and the OR circuit give the form of a pending signal when they are able to emit a signal.
- a signal comparison device can be arranged in front of the input of the transmitter and behind the output of the receiver, which can compare and evaluate the transmission signal running to the transmitter with the signal received by the receiver.
- the transmission and reception stage and / or the comparison device can be designed as an integrated circuit, as an IC.
- the circuit arrangements described are particularly suitable for this.
- the integrated circuit can be of the so-called UARP type.
- UARP IC circuit can be designed as a TPUARP for twisted pairs.
- the device for transmission signal monitoring works with a transmission and reception stage 1 for a bus with the bus conductors 2 for VB + with the positive bus potential and the bus conductor 3 for VB- with the negative bus potential.
- This type is typical for the EIBA bus, but the device also works correspondingly for other bus devices or other line systems in a circuit arrangement.
- These conductors then perform the function of a bus in the sense of the invention.
- a transmitter 4 and a receiver 5 are embodied in the transmission and reception stage 1.
- the functions of the individual components can be implemented in an integrated circuit, in an IC, in particular in a UARP.
- To check the function of the transmitter 4 a sent message signal is compared with the message signal returning from the bus to the receiver 5. In the event of an error, i.e.
- the blocking indicator is usually referred to as an error flag.
- the receiver 5 is connected at its output to an OR circuit 6, the input of the transmitter 4 being connected to an AND circuit 7.
- the AND circuit 7 is also connected to an output of a device 8 for monitoring the bus voltage.
- the output of the AND circuit 7 is connected to the input of the OR circuit 6.
- the voltage monitor sends a signal to the AND circuit when the bus voltage falls below a predetermined value.
- the device works in such a way that a transmission signal pending at the transmitter 4 is returned directly to the receiver 5 without the detour via the bus line. In the exemplary embodiment, it is coupled onto the receive line 9 via the OR circuit 6.
- the transmission signal can be compared with the receiver signal in a comparison device 10, which in the exemplary embodiment is before the input of the transmission signal. the 4 and is arranged behind the output of the receiver 5.
- the transmitting and receiving stage 1 can be implemented in an integrated circuit, also in a common integrated circuit.
- the transmitting and receiving stage 1 can be designed as a UARP and for a bus with a twisted two-wire line as a TPUARP.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Selective Calling Equipment (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Communication Control (AREA)
- Radar Systems Or Details Thereof (AREA)
- Dc Digital Transmission (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU26576/00A AU2657600A (en) | 1999-01-14 | 2000-01-04 | Method and device for transmission signal control |
EP00904832A EP1142208B1 (de) | 1999-01-14 | 2000-01-04 | Verfahren und einrichtung zur sendesignalüberwachung |
DE50012442T DE50012442D1 (de) | 1999-01-14 | 2000-01-04 | Verfahren und einrichtung zur sendesignalüberwachung |
HK02101687.4A HK1040149B (zh) | 1999-01-14 | 2002-03-05 | 用於傳輸信號控制的方法和裝置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19901193A DE19901193A1 (de) | 1999-01-14 | 1999-01-14 | Verfahren und Einrichtung zur Sendesignalüberwachung |
DE19901193.1 | 1999-01-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000041458A2 true WO2000041458A2 (de) | 2000-07-20 |
WO2000041458A3 WO2000041458A3 (de) | 2000-11-16 |
Family
ID=7894239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/000035 WO2000041458A2 (de) | 1999-01-14 | 2000-01-04 | Verfahren und einrichtung zur sendesignalüberwachung |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1142208B1 (de) |
AT (1) | ATE321397T1 (de) |
AU (1) | AU2657600A (de) |
DE (2) | DE19901193A1 (de) |
DK (1) | DK1142208T3 (de) |
ES (1) | ES2261179T3 (de) |
HK (1) | HK1040149B (de) |
PT (1) | PT1142208E (de) |
WO (1) | WO2000041458A2 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0664628A2 (de) * | 1993-12-21 | 1995-07-26 | Mitsubishi Denki Kabushiki Kaisha | Übertragungssteuerungsvorrichtung |
US5751746A (en) * | 1994-06-16 | 1998-05-12 | Volkswagen Ag | Method for monitoring serial transmission of digital data messages on a single-wire multiplex connection between intercommunicating signal-processing devices |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2502375C3 (de) * | 1975-01-22 | 1983-02-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Datenübertragungsverfahren mit von Hand ausgelöster Rückantwort |
US5315533A (en) * | 1991-05-17 | 1994-05-24 | Best Power Technology, Inc. | Back-up uninterruptible power system |
JPH0764817A (ja) * | 1993-08-30 | 1995-03-10 | Mitsubishi Electric Corp | 故障検出システム |
DE4413467C1 (de) * | 1994-04-19 | 1995-09-28 | Siemens Ag | Verfahren zum energiearmen Abfragen von binären Zuständen über lange Leitungen |
JP2845155B2 (ja) * | 1995-02-07 | 1999-01-13 | 日本電気株式会社 | シングルチップマイクロコンピュータのエミュレーションチップ |
DE19601881A1 (de) * | 1996-01-19 | 1997-07-24 | Siemens Ag | Überwachungseinrichtung für Strom- und Leistungsaufnahme |
US5784558A (en) * | 1996-04-26 | 1998-07-21 | Integrated Network Corporation | Method and apparatus for testing of extended ISDN BRI service |
-
1999
- 1999-01-14 DE DE19901193A patent/DE19901193A1/de not_active Withdrawn
-
2000
- 2000-01-04 ES ES00904832T patent/ES2261179T3/es not_active Expired - Lifetime
- 2000-01-04 EP EP00904832A patent/EP1142208B1/de not_active Expired - Lifetime
- 2000-01-04 AU AU26576/00A patent/AU2657600A/en not_active Abandoned
- 2000-01-04 DK DK00904832T patent/DK1142208T3/da active
- 2000-01-04 AT AT00904832T patent/ATE321397T1/de active
- 2000-01-04 DE DE50012442T patent/DE50012442D1/de not_active Expired - Lifetime
- 2000-01-04 PT PT00904832T patent/PT1142208E/pt unknown
- 2000-01-04 WO PCT/DE2000/000035 patent/WO2000041458A2/de active IP Right Grant
-
2002
- 2002-03-05 HK HK02101687.4A patent/HK1040149B/zh not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0664628A2 (de) * | 1993-12-21 | 1995-07-26 | Mitsubishi Denki Kabushiki Kaisha | Übertragungssteuerungsvorrichtung |
US5751746A (en) * | 1994-06-16 | 1998-05-12 | Volkswagen Ag | Method for monitoring serial transmission of digital data messages on a single-wire multiplex connection between intercommunicating signal-processing devices |
Also Published As
Publication number | Publication date |
---|---|
ATE321397T1 (de) | 2006-04-15 |
ES2261179T3 (es) | 2006-11-16 |
HK1040149B (zh) | 2006-08-11 |
EP1142208B1 (de) | 2006-03-22 |
AU2657600A (en) | 2000-08-01 |
DE50012442D1 (de) | 2006-05-11 |
HK1040149A1 (en) | 2002-05-24 |
DE19901193A1 (de) | 2000-07-20 |
WO2000041458A3 (de) | 2000-11-16 |
PT1142208E (pt) | 2006-07-31 |
EP1142208A2 (de) | 2001-10-10 |
DK1142208T3 (da) | 2006-07-17 |
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