EP0252266A1 - Remote monitoring system for lift installations - Google Patents

Remote monitoring system for lift installations Download PDF

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Publication number
EP0252266A1
EP0252266A1 EP87107703A EP87107703A EP0252266A1 EP 0252266 A1 EP0252266 A1 EP 0252266A1 EP 87107703 A EP87107703 A EP 87107703A EP 87107703 A EP87107703 A EP 87107703A EP 0252266 A1 EP0252266 A1 EP 0252266A1
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EP
European Patent Office
Prior art keywords
building
data
regional
level
center
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EP87107703A
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German (de)
French (fr)
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EP0252266B1 (en
Inventor
Thomas Dr. Hinderling
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Inventio AG
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Inventio AG
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Priority to AT87107703T priority Critical patent/ATE54650T1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0018Devices monitoring the operating condition of the elevator system
    • B66B5/0025Devices monitoring the operating condition of the elevator system for maintenance or repair
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0037Performance analysers

Definitions

  • the invention relates to a system for central administration, regional inspection and for the local monitoring of decentralized elevator systems, which in a modular structure at the administration level has an administration center with means and methods for electronic data processing, which has at least one with means and methods via a telecommunication connection at regional level to guarantee the maintenance of the plant is subordinate to the regional center to which at least one building with computer means for diagnosing plant activities of at least one plant is connected at a local level via a telecommunication connection.
  • Such facilities enable a rationalization of maintenance, a reduction in maintenance costs and an improved range of services in the area of elevator systems.
  • a device is known from US Pat. No. 3,973,648 which monitors elevator groups by means of a central computer via a modem connection.
  • An elevator group selected by the central computer sends data relating to operating, fault and alarm events in serial, digital form to the central computer.
  • a hardware interface with monitoring and transmission functions serves as the link between the elevator group and the central computer.
  • the disadvantage of the known device is that the data is passed on without being evaluated.
  • the central computer must evaluate the data received and decide whether a service call is indicated based on the evaluation.
  • the transmission of all current system data to the central computer requires a long occupancy of the leased lines and takes up a lot of computer time.
  • Another disadvantage of the known device is that the central computer calls the elevator groups to be monitored. As a result, the relevant system data is not recorded when it is created, but with a delay caused by the query cycle. In addition, at least at low traffic frequencies, there are inquiries for which there are no significant changes to the system data.
  • a device which comprises means for remote monitoring of elevator systems.
  • the data points of an elevator system to be monitored are connected to an auxiliary computer subordinate to a main computer.
  • an intelligent on-site main computer takes over the data from the auxiliary computers as well as the data from the elevator group control. These are processed by the main computer and forwarded to the central computer via a modem connection.
  • the central computer creates maintenance lists based on the data and transmits them to the responsible service center.
  • the disadvantage of the known device is that all data of an elevator group are processed and transmitted by means of a main computer. In the event of a malfunction or if the main computer needs maintenance (software maintenance etc.), remote monitoring of the entire elevator group fails.
  • Another disadvantage of the known device is that a modem connection to the central computer is required for each main computer. In buildings with several elevator groups, several postal lines up to the main computers located in the machine room must therefore be installed and rented.
  • a device is known from US Pat. No. 4,568,909 which comprises means for local and central remote monitoring of elevator systems.
  • One main computer per building records the data points of several using auxiliary units Elevator systems.
  • the main computer evaluates the data and decides whether there are new operating, fault and alarm events. It transmits them to a local service center via a modem connection.
  • Several service points are connected to a higher-level central computer.
  • the disadvantage of the known device is that the computer intelligence for an entire building is concentrated in a main computer. Only the connection of auxiliary units with the main computer result in a functioning monitoring system. Such a monitoring system proves to be less flexible in terms of configuration, hardware and software in terms of structure as complicated and costly as complex.
  • the invention aims to provide a device for the remote management of elevator systems. With the facility mentioned, new services for the customer are realized with the aim of simplifying the maintenance of elevator systems by means of central administration, planning and rationalization.
  • the object of the invention is to use simple means to build up an efficient remote management system using existing facilities, which records data on decentralized processes of elevator systems on a regional level and centrally manages them on a supra-regional level.
  • a process comprises all processes in systems to be monitored that fall under the term elevator technology.
  • the remote management system has an intelligent, diagnosable on-site periphery for the autonomous monitoring of a process.
  • the periphery includes means for process data acquisition, means for process data handling and means for specific adaptation to the process.
  • the periphery reports to the regional center with diagnostic data via a communication computer that is available once per building.
  • the regional center is responsible for all matters relating to maintenance activities.
  • the regional centers of a geographical area are connected to a higher-level administrative center, which thus has access to all relevant data that occurs in the network system. It is used for central administrative activities.
  • the communication channels within the building consist of the electrical installation available throughout the building, and outside the building from the country-wide postal lines.
  • 1 to 7, 1 denotes an administration center which has a central processor 1.1, a mass storage 1.2, a working memory 1.3, at least one keyboard 1.4 for inputting information and at least one data display device 1.5 and at least one printer 1.6 for outputting information.
  • the administration center 1 is connected via modem 2 and telephone connection 2.1 via a public telephone network 4 to at least one regional center 3.
  • the indices used in FIG. 1 mean the following from left to right: region, building, process. As an example of this, 1.
  • M. I means: Process I in building M of region 1.
  • the regional center 3 with A central processor 3.1, a floppy disk station 3.2, a disk storage 3.3, a data storage 3.4 and the peripheral devices such as keyboard 3.5, data display device 3.6, alarm printer 3.7 differ only slightly from the construction of the administration center 1. In terms of size, they differ from the administration center 1 wide EDP applications must be sufficient, the regional center 3, however, is essentially intended for the instruction of service personnel.
  • a telealarm device 5 is used together with a commercially available personal computer 6, which is equipped with a conventional visual display device 6.2 and a keyboard 6.3.
  • the building control center 6 is connected to the communication module 7 via the interface 7.4.
  • a dialing unit 7.5 distinguishes incoming or outgoing data from incoming or outgoing calls of the telealarm 5.
  • a bus module 8 takes over the frequency conversion of the outgoing or incoming data or calls in a modulator 8.1 and a demodulator 8.2 and sends them or receives them via a line coupler 8.3 to or from the building bus 9.
  • a peripheral module 10 points a peripheral computer 10.1, a data memory 10.2, a peripheral program memory 10.3 and a timer 10.4.
  • the peripheral module 10 is connected to the bus module 8 via a serial interface 10.5.
  • a further serial interface 10.6 enables service personnel to communicate locally with the peripheral module 10.
  • For data acquisition and data output he has at least one binary input 10.7, at least one binary output 10.8, at least one analog input 10.9 and at least one analog output 10.10.
  • a common peripheral bus 10.11 is available within the peripheral module 10.
  • the data generated by a process and the commands required for the process 11 are acquired by means of at least one binary data point 11.1, by means of at least one binary function 11.2, by means of at least one analog data point 11.3 and by means of at least one analog function 11.4, or are forwarded to the process 11.
  • a network bus 14 is an embodiment variant of the building bus 9 shown in FIG. 1.
  • the above-mentioned on-site communication is made possible by connecting a maintenance case 15 to the interface 10.6.
  • the voltage / frequency diagram shown in FIG. 7 shows at 16 a data channel width with a data carrier frequency 17.
  • a carrier frequency amplitude 20 applies to the speech channel 12 as well as to the data channel 13.
  • the system for remote administration of elevator systems shown in FIG. 1 can be divided hierarchically and functionally into four levels: administration level, regional level, building level and process level.
  • the modular structure of the system allows the individual levels to be largely independent. Each subordinate level can also function without its superordinate level. Without the administrative center 1, the system still works as a remote inspection system. Without regional center 3, the trunk system remains fully functional as an inspection system for the processes connected across the building. Without building control center 6, each individual process 11 can be monitored by means of peripherals 10 and maintenance case 15.
  • the administrative center 1 has the task of centrally and commercially efficiently managing the business required by the maintenance of elevator systems in several regions. For this purpose, it is connected via modem 2 and telephone network 4 to the regional centers 3 of the geographical regions 1 to K.
  • the relevant for the administration Data are excreted from the regional centers 32 and transmitted to the administrative center 1 with the aid of known means and methods of data communication.
  • the following IT applications are essentially implemented in the administrative center 1 equipped with commercially available devices: - Settlements - cost analysis - Maintenance optimization - Maintenance interval calculations - vulnerability analysis - trend analysis - Management of modernization businesses. The necessary working methods correspond to the state of EDP practice and are therefore not explained in more detail.
  • the regional center 3 serves as an interface between the system and the service personnel responsible for the maintenance of an entire region. It processes data and outputs it to the user in plain text.
  • the regional center 3 of the geographic region 1 is connected via the modem 2 and the telephone network 4 to the buildings 1.1 to 1.M.
  • the regional center 3 of the geographic region K is correspondingly superior to the buildings K.1 to KM.
  • operational, Fault, alarm, danger, maintenance and security messages are recorded by the processes 11 assigned to them.
  • the central processor 3.1 controlled by the operating system and user program resident in the disk memory further processes the recorded data for the following purposes: - logging - reliability statistics - efficiency analysis - Deployment planning of the service personnel - Route planning of the service personnel - Spare parts planning - Preventive maintenance planning based on the recorded operating and maintenance data. Data with secondary priority are stored on diskette 3.2 and output to printer 3.7 on demand.
  • the system has the ability to transmit audio information.
  • the operator of a regional center 3 has the possibility of making direct contact with persons involved in a process 11 on a speech channel which is separated in frequency from the data channel.
  • the operator of a house control center or the on-site service technician can claim verbal support in solving system problems from the regional control center 3.
  • Sending and receiving means are on the elevator side installed directly in the cabin. This enables people in need to report their predicament directly to the building or regional headquarters.
  • the regional center 3 allows an insight into all of its subordinate processes 11. By sending a telegram with control and address data of the peripherals 10 to be selected, the regional center 3 receives direct access to the process data, if required. Normally, however, as mentioned below, the data exchange will take place in the opposite direction.
  • the regional center 3 calls a communication module 7 only if a certain time has passed without contact. Function tests can be carried out in individual processes 11 from the regional center 3, and actions to remedy the fault condition can be initiated in the event of a fault. For these reasons, the modem 2 provided must be both self-selecting and self-answering. In addition, it must meet the requirements of telearm 5. With an additional circuit placed in the regional center 3 and not mentioned in the figures, voice connections can be established in a comparable manner with the above-mentioned data channels to the central building 6 or the individual peripherals 10.
  • the dialing unit 7.5 separates the data traffic from voice traffic into incoming and outgoing Direction.
  • the dialing unit 7.5 divides the telephone network-side information channel into the speech channel 12 and the data channel 13.
  • the modem 2 converts the data into a transferable two-frequency signal by means of frequency shift keying. In the incoming direction, it converts the frequency-modulated signals back into computer-compatible one-zero signals.
  • a communication module 7 takes over the data traffic between the regional center 3 and the processes 11 to be managed in this building.
  • the communication computer 7.1 controlled by an EPROM-resident communication program transmits the process data to the regional center 3 via modem 2 and telephone network 4.
  • the communication module serves functionally 7 on the one hand as a data buffer 7.2 between the two asynchronous communication lines telephone network 4 / building bus 9 and on the other hand for controlling communication within the building.
  • the communication computer 7.1 takes over the data from the connected processes 11 via the bus module 8 / building bus 9 explained below and stores them in the data buffer 7.2. It is not just a question of data. Every time you contact us With the peripheral modules 10, these are checked by the communication computer 7.1 for malfunctions.
  • Messages about disturbed peripheral modules 10 are also stored in the data buffer 7.2 and periodically forwarded to the regional center 3 together with the collected process data.
  • the communication module 7 does not decide whether process data is relevant for transmission or not. It merely takes over the above-mentioned data traffic between the on-site periphery 10 and the regional center 3. Process messages are processed exclusively by the peripheral modules 10 into process data relevant to transmission and forwarded to the communication module 7.
  • the processes 11 of a building can be inspected from the building control center 6.
  • a commercially available personal computer 6.1 is connected to the system via the serial interface 7.4.
  • the data pending in the data buffer 7.2 are further processed by the personal computer 6.1 for the following purposes: - Logging of operational, alarm and maintenance data of all processes 11 of a building connected to the system - Realization of simple statistical functions - Output of preventive maintenance reports with first priority.
  • the processes 11 (FIG. 1), which are indexed with 1.1.1 to 1.1.N, can be monitored from the building control center 6, for example 1.1, but, as from the regional control center 3, function tests and calls of certain process parameters can also be carried out in individual processes 11.
  • Information is exchanged within a building by means of the bus module 8 and the building bus 9 between the communication module 7 and the peripheral modules 10.
  • the bus module 8 modulates outgoing speech information on the speech carrier frequency 19 and data information on the data carrier frequency 17.
  • Information arriving from the building bus 9 arrives at the input via the line coupler 8.3 of the demodulator 8.2, which returns it to its original position by means of filtering and demodulation and forwards it to the voice or data channel in accordance with the information content.
  • the device shown in FIGS. 4 and 6 has a network bus 14 as a variant of the building bus 9.
  • a separately routed two-wire cable serves as the building bus 9 instead of the intrinsically-free network bus 14.
  • the network bus 14 is a serial bus using the high-voltage electrical installation available throughout the building. It does not require its own line network and enables signals to be fed in or received at any point in the power network that is accessible via sockets. For reasons of telecommunications authority, this means of transmitting information regarding range, transmission power and channel frequencies is restricted depending on the postal regulations.
  • the range is normally limited to your own property, the transmission power is in the range of a few milliwatts and the permissible frequency band has to be below the long-wave band.
  • Carrier frequency locks are provided on the supply side so that no third-party systems outside the property are disturbed or interference signals from outside influence your own system.
  • the exchange of data between transmitters and receivers is based on the acknowledgment principle.
  • An active transmitter sends information in the form of telegrams with control, address and data characters. He then expects a receipt from the called recipient telegram. The information transfer is only completed when the active sender has received a valid reply.
  • the signals are transmitted or received in synchronism with the network.
  • the zero crossing range of the phase voltages not used by the phase gating controls ensures a largely interference-free time window in which digital data can be transmitted.
  • the transmission methods mentioned result in data transmission with high reliability and extensive security against external interference.
  • the frequency plan shown in Fig. 7 shows a possibility for frequency separation between speech and data channel.
  • Carrier frequency amplitude 20 and the upper band limit are subject to postal regulations. Speech and data channel bandwidth and choice of speech carrier frequency 19 and data carrier frequency 17 are released by post.
  • Each process 11 has its own autonomous on-site peripheral module 10 which can be adapted to the specific process character.
  • the regional center 3 and the peripheral module 10 are equal partners with regard to data exchange.
  • anyone can initiate a connection to exchange data.
  • the peripheral module 10 is cyclically requested by the communication module 7 to exchange data. In doing so only transmit events from the I / O module 10, ie the I / O module 10 does not transmit any process states for the cyclical requests, but only the status changes that occurred between two cycles.
  • the peripheral module 10 passes on unusual system states automatically and without being requested.
  • Via at least one binary / analog input 10.7 / 10.9 the peripheral computer 10.7 records the process data present at at least one binary / analog data point 11.1 / 11.3.
  • Commands and analog variables are passed on to at least one binary / analog function 11.2 / 11.4 to process 11 by means of at least one binary / analog output 10.8 / 10.10.
  • the timer 10.4 supplies the peripheral computer 10.1 with the work cycle for cyclical processing of the user programs loaded in the peripheral program memory 10.3.
  • the peripheral computer 10.1 controls the data traffic running over the peripheral bus 10.11. All data sources and data sinks connected to the peripheral bus 10.11 and identified by addresses can send and receive data.
  • a first interface 10.5 converts parallel data into serial data, determines its transmission speed and sends it towards the communication module 7.
  • a corresponding transmission method applies in the opposite direction.
  • a second bidirectional interface 10.6 offers the possibility of connecting a maintenance case 15, which enables on-site operation and query of the peripheral module 10 as well as direct intervention opportunities in the respective process allowed.
  • the system-specific information is converted into general information.
  • the system-specific information relay XX ON / OFF is converted, for example, into the general door OPEN / CLOSE information.
  • the management of elevator systems not only requires information that is supplied by real data points. Values derived from calculations, such as operational, traffic, maintenance parameters, etc., are accessed via virtual data points. Real as well as virtual data points can be linked arithmetically and logically as well as conditions, limit values etc.
  • the system components database, knowledge base and reasoning procedure form the intelligence of the peripheral module 10.
  • the database includes all information of the data points, facts, parameter sizes, etc. of the ongoing process.
  • the knowledge base contains a basic set of hypothetical rules that a qualified operator would use to handle process messages.
  • the reasoning procedure links the database with the knowledge base. The rules below Consideration of the database information that plays a role in them. The reasoning procedure reveals new information from existing information based on the judgments, assignments and conclusions made in the knowledge base.
  • the inference procedure In the event of failure of, for example, a relay sequence, the inference procedure, based on the current information and on the basis of the rules established in the knowledge base about the failed relay sequence, concludes the relay contact causing the failure. Using the new information obtained from the first inference step and further rules, the search for the cause is continued until, for example, the open safety switch causing the failure is found.

Abstract

Mit diesem System werden neue Dienstleistungen in Form von zentraler Verwaltung, Planung und Rationalisierung des Unterhaltes von Aufzugsanlagen angeboten. Das System umfasst ein modular aufgebautes Fernverwaltungssystem, welches zentral die Verwaltung, regional die Inspektion und lokal die Überwachung von dezentralen Prozessen aufzugstechnischer Anlagen ermöglicht. Die Verwaltungszentrale (1) steht via Modem (2)/Telephonnetz (4) mit den Regionszentralen (3) in Verbindung und hat Zugriff zu sämtlichen relevanten Daten. Die Regionszentrale (3) gestattet einen Einblick in sämtliche Prozesse (11) mehrerer Gebäude. Von der Regionszentrale (3) lassen sich mittels Telealarm (5) direkte Sprechverbindungen bis zu der Peripherie aufbauen. Pro Gebäude übernimmt der Kommunikationsmodul (7) den Datenverkehr zwischen der Regionszentrale (3) und den in diesem Gebäude zu inspizierenden Prozessen (11). Die Prozessdaten werden von dem diagnosefähigen Peripheriemodul (10) erfasst und mit Hilfe von heuristischen Arbeitsmitteln zu relevanten Betriebs-, Stör- und Alarmmeldungen weiterverarbeitet. Der Peripheriemodul (10) meldet sich mit diagnostischen Daten über den gemeinsamen Gebäudebus (9) bei dem Kommunikationsmodul (7), der sie mittels telefonischer Selbstwahl an die Regionszentrale (3) weitervermittelt.This system offers new services in the form of central administration, planning and rationalization of the maintenance of elevator systems. The system comprises a modular remote management system, which enables central administration, regional inspection and local monitoring of decentralized processes in elevator systems. The administration center (1) is connected to the regional centers (3) via modem (2) / telephone network (4) and has access to all relevant data. The regional center (3) allows an insight into all processes (11) of several buildings. Direct voice connections to the periphery can be established from the regional center (3) using the telealarm (5). For each building, the communication module (7) handles the data traffic between the regional center (3) and the processes (11) to be inspected in this building. The process data are recorded by the diagnostics-capable peripheral module (10) and further processed to relevant operating, fault and alarm messages with the help of heuristic tools. The peripheral module (10) reports with diagnostic data via the common building bus (9) to the communication module (7), which forwards it to the regional center (3) by means of telephone dialing.

Description

Die Erfindung betrifft ein System zur zentralen Verwal­tung, regionalen Inspektion und zur lokalen Überwachung von dezentralen Aufzugsanlagen, welches in einer modularen Struktur auf Verwaltungsebene eine Verwaltungszentrale mit Mitteln und Methoden zur elektronischen Datenverar­beitung aufweist, der über eine Fernmeldeverbindung auf regionaler Ebene mindestens eine mit Mitteln und Methoden zur Garantierung des Anlageunterhaltes versehene Regions­zentrale untergeordnet ist, an die über eine Fernmelde­verbindung auf lokaler Ebene mindestens eine Gebäude mit Rechnermitteln zur Diagnose von Anlagetätigkeiten mindestens einer Anlage angeschlossen ist.The invention relates to a system for central administration, regional inspection and for the local monitoring of decentralized elevator systems, which in a modular structure at the administration level has an administration center with means and methods for electronic data processing, which has at least one with means and methods via a telecommunication connection at regional level to guarantee the maintenance of the plant is subordinate to the regional center to which at least one building with computer means for diagnosing plant activities of at least one plant is connected at a local level via a telecommunication connection.

Solche Einrichtungen ermöglichen eine Rationalisierung des Unterhaltes, eine Verminderung von Unterhaltskosten und ein verbessertes Angebot an Dienstleistungen im Bereich Aufzugsanlagen.Such facilities enable a rationalization of maintenance, a reduction in maintenance costs and an improved range of services in the area of elevator systems.

Aus US-PS 3 973 648 ist eine Einrichtung bekannt, die mittels Zentralrechner via Modem-Verbindung Aufzugsgruppen überwacht. Eine vom Zentralrechner angewählte Aufzugs­gruppe sendet Daten betreffend Betriebs-, Stör- und Alarm­ereignisse in serieller, digitaler Form zum Zentralrech­ner. Als Bindeglied zwischen der Aufzugsgruppe und dem Zentralrechner dient ein Hardware-Interface mit Über­wachungs- und Übermittlungsfunktionen.A device is known from US Pat. No. 3,973,648 which monitors elevator groups by means of a central computer via a modem connection. An elevator group selected by the central computer sends data relating to operating, fault and alarm events in serial, digital form to the central computer. A hardware interface with monitoring and transmission functions serves as the link between the elevator group and the central computer.

Der Nachteil der bekannten Einrichtung liegt darin, dass die Daten unausgewertet weitergegeben werden. Der Zentral­rechner muss die eingegangenen Daten auswerten und darüber entscheiden, ob auf Grund der Auswertung ein Serviceein­satz angezeigt ist. Die Übermittlung aller aktuellen Anlagedaten zum Zentralrechner bedingt eine lange Bele­gung der Mietleitungen und beansprucht viel Rechnerzeit. Ein weiterer Nachteil der bekannten Einrichtung liegt darin, dass der Zentralrechner die zu überwachenden Aufzugsgruppen anruft. Dadurch werden die relevanten Anlagedaten nicht bei ihrer Entstehung, sondern mit einer durch den Abfragezyklus bedingten Verzögerung erfasst. Ausserdem ergeben sich mindestens bei kleinen Verkehrs­frequenzen Anfragen, bei denen keine wesentlichen Änderungen betreffend Anlagedaten anstehen.The disadvantage of the known device is that the data is passed on without being evaluated. The central computer must evaluate the data received and decide whether a service call is indicated based on the evaluation. The transmission of all current system data to the central computer requires a long occupancy of the leased lines and takes up a lot of computer time. Another disadvantage of the known device is that the central computer calls the elevator groups to be monitored. As a result, the relevant system data is not recorded when it is created, but with a delay caused by the query cycle. In addition, at least at low traffic frequencies, there are inquiries for which there are no significant changes to the system data.

Aus US-PS 4 512 442 ist eine Einrichtung bekannt, die Mittel zur Fernüberwachung von Aufzugssystemen umfasst. Die zu überwachenden Datenpunkte eines Aufzugssystems sind an einen einem Hauptrechner untergeordneten Hilfs­rechner angeschlossen. Pro Aufzugsgruppe übernimmt ein intelligenter vor Ort-Hauptrechner die Daten der Hilfs­rechner wie auch die Daten der Aufzugsgruppensteuerung. Diese werden vom Hauptrechner aufbereitet und via Modem-­Verbindung an den Zentralrechner weitergeleitet. Der Zentralrechner erstellt auf Grund der anfallenden Daten Unterhaltslisten und übermittelt sie der zuständigen Servicestelle.From US-PS 4 512 442 a device is known which comprises means for remote monitoring of elevator systems. The data points of an elevator system to be monitored are connected to an auxiliary computer subordinate to a main computer. For each elevator group, an intelligent on-site main computer takes over the data from the auxiliary computers as well as the data from the elevator group control. These are processed by the main computer and forwarded to the central computer via a modem connection. The central computer creates maintenance lists based on the data and transmits them to the responsible service center.

Der Nachteil der bekannten Einrichtung liegt darin, dass sämtliche Daten einer Aufzugsgruppe mittels einem Haupt­rechner aufbereitet und übermittelt werden. Im Störungs­fall oder bei Servicebedarf (Unterhalt der Software etc.) des Hauptrechners fällt die Fernüberwachung der gesamten Aufzugsgruppe aus. Ein weiterer Nachteil der bekannten Einrichtung liegt darin, dass pro Hauptrechner eine Modem-­Verbindung zum Zentralrechner nötig ist. Bei Gebäuden mit mehreren Aufzugsgruppen müssen daher mehrere Postleitungen bis zu den im Maschinenraum plazierten Hauptrechnern installiert und gemietet werden.The disadvantage of the known device is that all data of an elevator group are processed and transmitted by means of a main computer. In the event of a malfunction or if the main computer needs maintenance (software maintenance etc.), remote monitoring of the entire elevator group fails. Another disadvantage of the known device is that a modem connection to the central computer is required for each main computer. In buildings with several elevator groups, several postal lines up to the main computers located in the machine room must therefore be installed and rented.

Aus US-PS 4 568 909 ist eine Einrichtung bekannt, die Mittel zur lokalen und zentralen Fernüberwachung von Aufzugssystemen umfasst. Pro Gebäude erfasst ein Haupt­rechner mittels Hilfseinheiten die Datenpunkte mehrerer Aufzugssysteme. Der Hauptrechner wertet die anfallenden Daten aus und entscheidet, ob neue Betriebs-, Stör- und Alarmereignisse vorliegen. Via Modem-Verbindung übermit­telt er sie einer lokalen Servicestelle. Mehrere Service­stellen sind an einen übergeordneten Zentralrechner ange­schlossen.A device is known from US Pat. No. 4,568,909 which comprises means for local and central remote monitoring of elevator systems. One main computer per building records the data points of several using auxiliary units Elevator systems. The main computer evaluates the data and decides whether there are new operating, fault and alarm events. It transmits them to a local service center via a modem connection. Several service points are connected to a higher-level central computer.

Der Nachteil der bekannten Einrichtung liegt darin, dass die Rechnerintelligenz für ein ganzes Gebäude in einem Hauptrechner konzentriert ist. Nur der Zusammenschluss von Hilfseinheiten mit dem Hauptrechner ergeben ein funktionsfähiges Überwachungssystem. Ein solches Über­wachungssystem erweist sich ausbaumässig als wenig flexibel, im Aufbau hardware- wie auch softwaremässig als kompliziert und kostenmässig als aufwendig.The disadvantage of the known device is that the computer intelligence for an entire building is concentrated in a main computer. Only the connection of auxiliary units with the main computer result in a functioning monitoring system. Such a monitoring system proves to be less flexible in terms of configuration, hardware and software in terms of structure as complicated and costly as complex.

Die Erfindung bezweckt die Schaffung einer Einrichtung zur Fernverwaltung von Aufzugsanlagen. Mit der genannten Einrichtung werden neue Dienstleistungen für den Kunden realisiert mit dem Ziel, mittels zentraler Verwaltung, Planung und Rationalisierung den Unterhalt von Aufzugs­anlagen zu vereinfachen. Der Erfindung liegt die Aufgabe zugrunde, aus einfachsten Mitteln ein effizientes Fern­verwaltungssystem unter Ausnützung bereits bestehender Einrichtungen aufzubauen, welches dezentrale Prozesse von Aufzugsanlagen auf regionaler Ebene datenmässig erfasst und auf überregionaler Ebene zentral verwaltet. Ein Prozess umfasst alle Vorgänge in zu überwachenden, unter den Begriff Aufzugstechnik fallende Anlagen.The invention aims to provide a device for the remote management of elevator systems. With the facility mentioned, new services for the customer are realized with the aim of simplifying the maintenance of elevator systems by means of central administration, planning and rationalization. The object of the invention is to use simple means to build up an efficient remote management system using existing facilities, which records data on decentralized processes of elevator systems on a regional level and centrally manages them on a supra-regional level. A process comprises all processes in systems to be monitored that fall under the term elevator technology.

Diese Aufgabe wird durch die in den Ansprüchen gekenn­zeichnete Erfindung gelöst, welche eine Einrichtung zur Fernverwaltung von Aufzugsanlagen definiert. Das Fernver­waltungssystem weist auf Prozessebene pro Prozess eine intelligente, diagnosefähige vor Ort-Peripherie zur autonomen Überwachung eines Prozesses auf. Die Peripherie umfasst Mittel zur Prozessdatenerfassung, Mittel zur Prozessdatenbehandlung und Mittel zur spezifischen Anpassung an den Prozess. Die Peripherie meldet sich mit diagnostischen Daten über einen pro Gebäude einmal vor­handenen Kommunikationsrechner bei der Regionszentrale. Der Regionszentrale obliegen sämtliche Belange der Wartungsaktivitäten. Die Regionszentralen eines geographi­schen Bereiches stehen in Verbindung mit einer übergeord­neten Verwaltungszentrale, die somit Zugriff hat zu sämtlichen im Verbundsystem auftretenden relevanten Daten. Sie wird für zentrale Verwaltungsaktivitäten ein­gesetzt. Die Kommunikationswege innerhalb der Gebäude bestehen aus der gebäudeweit vorhandenen Elektroinstalla­tion, ausserhalb der Gebäude aus den landesweit vorhande­nen Postleitungen.This object is achieved by the invention characterized in the claims, which defines a device for the remote management of elevator systems. At the process level, the remote management system has an intelligent, diagnosable on-site periphery for the autonomous monitoring of a process. The periphery includes means for process data acquisition, means for process data handling and means for specific adaptation to the process. The periphery reports to the regional center with diagnostic data via a communication computer that is available once per building. The regional center is responsible for all matters relating to maintenance activities. The regional centers of a geographical area are connected to a higher-level administrative center, which thus has access to all relevant data that occurs in the network system. It is used for central administrative activities. The communication channels within the building consist of the electrical installation available throughout the building, and outside the building from the country-wide postal lines.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass pro Prozess eine an den Prozess anpassbare, intelligente Peripherie zur Ausschei­dung von Betriebs-, Stör- und Alarmereignissen vorgesehen ist. Damit lassen sich flexible, jeden Prozess von Auf­zugsanlagen erfassende Fernverwaltungssysteme mit modula­rem Aufbau realisieren. Durch den Einsatz einfachster Mittel unter Ausnützung von Elektroinstallationen und Postleitungen als Kommunikationswege ergeben sich minimale Anlage- und Installationskosten. Die durch das Fernverwal­tungssystem erreichte optimale Wartung von Aufzugsanlagen ermöglicht wesentliche Einsparungen an Personal- und Betriebskosten.The advantages achieved by the invention are essentially to be seen in the fact that one for each process Process adaptable, intelligent peripherals for the elimination of operating, fault and alarm events is provided. This makes it possible to implement flexible remote management systems with a modular structure that cover every process in elevator systems. The use of the simplest means, using electrical installations and postal lines as communication channels, results in minimal investment and installation costs. The optimal maintenance of elevator systems achieved by the remote management system enables substantial savings in personnel and operating costs.

Auf den beiliegenden Zeichnungen ist ein Beispiel der Er­findung dargestellt, das im folgenden näher erläutert wird. Es zeigen:

  • Fig. 1 eine Systemarchitektur einer Einrichtung zur Fern­verwaltung von Aufzugsanlagen,
  • Fig. 2 ein vereinfachtes Blockdiagramm einer in Fig. 1 eingesetzten Verwaltungszentrale,
  • Fig. 3 ein vereinfachtes Blockdiagramm einer in Fig. 1 eingesetzten Regionszentrale,
  • Fig. 4 ein vereinfachtes Blockdiagramm eines in Fig. 1 eingesetzten Kommunikationsmoduls mit einem zugehörigen Busmodul,
  • Fig. 5 die Elemente einer in Fig. 1 eingesetzten Gebäude­zentrale,
  • Fig. 6 ein vereinfachtes Blockdiagramm eines in Fig. 1 eingesetzten Peripheriemoduls mit einem zugehöri­gen Busmodul und den an den Peripheriemodul angeschlossenen Prozesselementen und
  • Fig. 7 ein Spannungs-/Frequenzdiagramm im Zusammenhang mit dem in Fig. 1 eingesetzten Gebäudebus.
In the accompanying drawings, an example of the invention is shown, which is explained in more detail below. Show it:
  • 1 shows a system architecture of a device for the remote management of elevator systems,
  • FIG. 2 shows a simplified block diagram of an administration center used in FIG. 1, FIG.
  • 3 shows a simplified block diagram of a regional center used in FIG. 1,
  • 4 shows a simplified block diagram of a communication module used in FIG. 1 with an associated bus module,
  • 5 shows the elements of a building control center used in FIG. 1,
  • FIG. 6 shows a simplified block diagram of an I / O module used in FIG. 1 with an associated bus module and the process elements and connected to the I / O module
  • Fig. 7 is a voltage / frequency diagram in connection with the building bus used in Fig. 1.

In den Fig. 1 bis 7 ist mit 1 eine Verwaltungszentrale bezeichnet, die einen Zentralprozessor 1.1, einen Massen­speicher 1.2, einen Arbeitsspeicher 1.3, mindestens eine Tastatur 1.4 zur Informationseingabe sowie mindestens ein Datensichtgerät 1.5 und mindestens einen Drucker 1.6 zur Informationsausgabe aufweist. Die Verwaltungszentrale 1 steht via Modem 2 und Telephonanschluss 2.1 über ein öffentliches Telephonnetz 4 in Verbindung mit mindestens einer Regionszentrale 3. Die in Fig. 1 verwendeten Indizes bedeuten von links nach rechts folgendes: Region, Gebäude, Prozess. Als Beispiel dafür bedeutet 1. M. I: Prozess I im Gebäude M der Region 1. Der Regionszentrale 3 mit einem Zentralprozessor 3.1, einer Diskettenstation 3.2, einem Plattenspeicher 3.3, einem Datenspeicher 3.4 und den Perpheriegeräten wie Tastatur 3.5, Datensichtgerät 3.6, Alarmdrucker 3.7 unterscheidet sich im Aufbau nur unwesentlich von der Verwaltungszentrale 1. Von der Grösse her unterscheiden sie sich insofern als die Verwaltungszentrale 1 breiten EDV-Anwendungen genügen muss, die Regionszentrale 3 hingegen im wesentlichen zur Einweisung des Servicepersonals vorgesehen ist.1 to 7, 1 denotes an administration center which has a central processor 1.1, a mass storage 1.2, a working memory 1.3, at least one keyboard 1.4 for inputting information and at least one data display device 1.5 and at least one printer 1.6 for outputting information. The administration center 1 is connected via modem 2 and telephone connection 2.1 via a public telephone network 4 to at least one regional center 3. The indices used in FIG. 1 mean the following from left to right: region, building, process. As an example of this, 1. M. I means: Process I in building M of region 1. The regional center 3 with A central processor 3.1, a floppy disk station 3.2, a disk storage 3.3, a data storage 3.4 and the peripheral devices such as keyboard 3.5, data display device 3.6, alarm printer 3.7 differ only slightly from the construction of the administration center 1. In terms of size, they differ from the administration center 1 wide EDP applications must be sufficient, the regional center 3, however, is essentially intended for the instruction of service personnel.

Zur Überwachung eines Gebäudes dient eine Telealarmein­richtung 5 zusammen mit einem handelsüblichen Personal-­computer 6, der mit einem üblichen Datensichtgerät 6.2 und einer Tastatur 6.3 ausgerüstet ist. Ein Kommunika­tionsmodul 7, bestehend aus einem Kommunikationsrechner 7.1, einem Datenzwischenspeicher 7.2 und einem Kommuni­kationsprogrammspeicher 7.3 ist für den Datenaustausch zwischen dem Gebäude und der Aussenwelt verantwortlich. Die Gebäudezentrale 6 wird über die Schnittstelle 7.4 an den Kommunikationsmodul 7 angeschlossen. Eine Wähleinheit 7.5 unterscheidet ankommende oder abgehende Daten von ankommenden oder abgehenden Rufen des Telealarms 5. Ein Busmodul 8 übernimmt die frequenzmässige Umsetzung vom abgehenden oder ankommenden Daten oder Rufen in einem Modulator 8.1 und einem Demodulator 8.2 und schickt sie oder empfängt sie via einem Leitungskoppler 8.3 auf den oder von dem Gebäudebus 9. Ein Peripheriemodul 10 weist einen Peripherierechner 10.1, einen Datenspeicher 10.2, einen Peripherieprogrammspeicher 10.3 und einen Zeit­geber 10.4 auf. Der Peripheriemodul 10 ist über eine seri­elle Schnittstelle 10.5 an den Busmodul 8 angeschlossen. Eine weitere serielle Schnittstelle 10.6 ermöglicht dem Servicepersonal eine vor Ort-Kommunikation mit dem Peripheriemodul 10. Zur Datenerfassung und zur Datenaus­gabe besitzt er mindestens einen Binäreingang 10.7, mindestens einen Binärausgang 10.8, mindestens einen Analogeingang 10.9 und mindestens einen Analogausgang 10.10. Innerhalb des Peripheriemoduls 10 steht ein gemein­samer Peripheriebus 10.11 zur Verfügung. Die von einem Prozess erzeugten Daten und die für den Prozess 11 not­wendigen Befehle werden mittels mindestens einem Binär­datenpunkt 11.1, mittels mindestens einer Binärfunktion 11.2, mittels mindestens einem Analogdatenpunkt 11.3 und mittels mindestens einer Analogfunktion 11.4 erfasst oder an den Prozess 11 weitergeleitet. Mit 12 ist ein Sprech­kanal und mit 13 ist ein Datenkanal bezeichnet. Ein Netz­bus 14 ist eine Ausführungsvariante des in der Fig. 1 dargestellten Gebäudebusses 9. Durch den Anschluss eines Wartungskoffers 15 an die Schnittstelle 10.6 wird die oben genannte vor Ort-Kommunikation ermöglicht. Das mit der Fig. 7 dargestellte Spannungs-/Frequenzdiagramm zeigt mit 16 eine Datenkanalbreite mit einer Datenträgerfrequenz 17. In analoger Weise ist für den Sprechkanal 12 mit 18 eine Sprechkanalbandbreite mit einer Sprechträgerfrequenz 19 dargestellt. Eine Trägerfrequenzamplitude 20 gilt für den Sprechkanal 12 wie auch für den Datenkanal 13.To monitor a building, a telealarm device 5 is used together with a commercially available personal computer 6, which is equipped with a conventional visual display device 6.2 and a keyboard 6.3. A communication module 7, consisting of a communication computer 7.1, a data buffer 7.2 and a communication program memory 7.3, is responsible for the data exchange between the building and the outside world. The building control center 6 is connected to the communication module 7 via the interface 7.4. A dialing unit 7.5 distinguishes incoming or outgoing data from incoming or outgoing calls of the telealarm 5. A bus module 8 takes over the frequency conversion of the outgoing or incoming data or calls in a modulator 8.1 and a demodulator 8.2 and sends them or receives them via a line coupler 8.3 to or from the building bus 9. A peripheral module 10 points a peripheral computer 10.1, a data memory 10.2, a peripheral program memory 10.3 and a timer 10.4. The peripheral module 10 is connected to the bus module 8 via a serial interface 10.5. A further serial interface 10.6 enables service personnel to communicate locally with the peripheral module 10. For data acquisition and data output, he has at least one binary input 10.7, at least one binary output 10.8, at least one analog input 10.9 and at least one analog output 10.10. A common peripheral bus 10.11 is available within the peripheral module 10. The data generated by a process and the commands required for the process 11 are acquired by means of at least one binary data point 11.1, by means of at least one binary function 11.2, by means of at least one analog data point 11.3 and by means of at least one analog function 11.4, or are forwarded to the process 11. 12 is a speech channel and 13 is a data channel. A network bus 14 is an embodiment variant of the building bus 9 shown in FIG. 1. The above-mentioned on-site communication is made possible by connecting a maintenance case 15 to the interface 10.6. The voltage / frequency diagram shown in FIG. 7 shows at 16 a data channel width with a data carrier frequency 17. In an analogous manner, for the speech channel 12 at 18 there is a speech channel bandwidth with a speech carrier frequency 19 shown. A carrier frequency amplitude 20 applies to the speech channel 12 as well as to the data channel 13.

Die vorstehend beschriebene Einrichtung arbeitet wie folgt:The device described above works as follows:

Das in Fig. 1 dargestellte System zur Fernverwaltung von Aufzugsanlagen lässt sich hierarchisch und funktionell in vier Ebenen aufteilen: Verwaltungsebene, Regionsebene, Gebäudeebene und Prozessebene. Die modulare Strukturierung des Systems erlaubt eine weitgehende Eigenständigkeit der einzelnen Ebenen. Jede untergeord­nete Ebene ist auch ohne die ihr übergeordnete Ebene funktionsfähig. Ohne Verwaltungszentrale 1 arbeitet das System immer noch als Ferninspektionssystem. Ohne Regions­zentrale 3 bleibt das Rumpfsystem als Inspektionssystem für die gebäudeweit angeschlossenen Prozesse voll funk­tionsfähig. Ohne Gebäudezentrale 6 kann jeder einzelne Prozess 11 mittels Peripherie 10 und Wartungskoffer 15 überwacht werden.The system for remote administration of elevator systems shown in FIG. 1 can be divided hierarchically and functionally into four levels: administration level, regional level, building level and process level. The modular structure of the system allows the individual levels to be largely independent. Each subordinate level can also function without its superordinate level. Without the administrative center 1, the system still works as a remote inspection system. Without regional center 3, the trunk system remains fully functional as an inspection system for the processes connected across the building. Without building control center 6, each individual process 11 can be monitored by means of peripherals 10 and maintenance case 15.

Die Verwaltungszentrale 1 hat zur Aufgabe, die durch den Unterhalt von Aufzugsanlagen mehrerer Regionen nötigen Geschäfte zentral und kommerziell effizient zu verwalten. Dazu steht sie via Modem 2 und Telephonnetz 4 mit den Regionszentralen 3 der geographischen Regionen 1 bis K in Verbindung. Die für die Verwaltung relevanten Daten werden von den Regionszentralen 32 ausgeschieden und mit Hilfe bekannter Mittel und Verfahren der Daten­kommunikation an die Verwaltungszentrale 1 übermittelt. In der mit handelsüblichen Geräten ausgerüstete Verwal­tungszentrale 1 werden im wesentlichen folgende EDV Applikationen realisiert:
- Abrechnungen
- Kostenanalysen
- Wartungsoptimierung
- Wartungsintervallberechnungen
- Schwachstellenanalysen
- Trendanalysen
- Steuerung von Modernisierungsgeschäften.
Die dazu notwendigen Arbeitsmethoden entsprechen dem Stand der EDV Praxis und werden daher nicht näher erläu­tert.
The administrative center 1 has the task of centrally and commercially efficiently managing the business required by the maintenance of elevator systems in several regions. For this purpose, it is connected via modem 2 and telephone network 4 to the regional centers 3 of the geographical regions 1 to K. The relevant for the administration Data are excreted from the regional centers 32 and transmitted to the administrative center 1 with the aid of known means and methods of data communication. The following IT applications are essentially implemented in the administrative center 1 equipped with commercially available devices:
- Settlements
- cost analysis
- Maintenance optimization
- Maintenance interval calculations
- vulnerability analysis
- trend analysis
- Management of modernization businesses.
The necessary working methods correspond to the state of EDP practice and are therefore not explained in more detail.

Die Regionszentrale 3 dient als Schnittstelle zwischen dem System und dem für den Anlageunterhalt einer ganzen Region zuständigen Servicepersonals. In ihr werden Prozessdaten gehandhabt und im Klartext an den Benutzer ausgegeben. Die Regionszentrale 3 der geographischen Region 1 steht via Modem 2 und Telephonnetz 4 mit den Gebäuden 1.1 bis 1.M in Verbindung. Sinngemäss ist die Regionszentrale 3 der geographischen Region K den Gebäuden K.1 bis K.M übergeordnet. In der mit handelsüblichen Geräten ausgerüsteten Regionszentrale 3 werden Betriebs-, Stör-, Alarm-, Gefahr-, Wartungs- und Sicherheitsmeldungen von den ihr zugeordneten Prozessen 11 erfasst. Der von dem plattenspeicherresidenten Betriebssystem und Anwender­programm gesteuerte Zentralprozessor 3.1 verarbeitet die erfassten Daten zu folgenden Zwecken weiter:
- Protokollierung
- Zuverlässigkeitsstatistik
- Wirkungsgradanalysen
- Einsatzplanung des Servicepersonals
- Routenplanung des Servicepersonals
- Ersatzteilplanung
- Präventivunterhaltsplanung auf Grund der erfassten Betriebs- und Unterhaltsdaten.
Daten mit zweitrangiger Priorität werden auf der Disket­tenstation 3.2 abgelegt und auf Abruf an den Drucker 3.7 ausgegeben.
The regional center 3 serves as an interface between the system and the service personnel responsible for the maintenance of an entire region. It processes data and outputs it to the user in plain text. The regional center 3 of the geographic region 1 is connected via the modem 2 and the telephone network 4 to the buildings 1.1 to 1.M. The regional center 3 of the geographic region K is correspondingly superior to the buildings K.1 to KM. In the regional center 3 equipped with commercially available devices, operational, Fault, alarm, danger, maintenance and security messages are recorded by the processes 11 assigned to them. The central processor 3.1 controlled by the operating system and user program resident in the disk memory further processes the recorded data for the following purposes:
- logging
- reliability statistics
- efficiency analysis
- Deployment planning of the service personnel
- Route planning of the service personnel
- Spare parts planning
- Preventive maintenance planning based on the recorded operating and maintenance data.
Data with secondary priority are stored on diskette 3.2 and output to printer 3.7 on demand.

Zusätzlich zur Übertragung von digitaler Information besitzt das System die Fähigkeit, Audio-Information zu übertragen. Auf einem frequenzmässig vom Datenkanal getrennten Sprechkanal hat der Operateur einer Regions­zentrale 3 die Möglichkeit, mit an einem Prozess 11 beteiligten Personen in direkten Kontakt zu treten. Mittels Telealarm 5 kann der Operateur einer Hauszentrale oder der vor Ort-Servicetechniker mündliche Unterstützung beim Lösen von Anlageproblemen von der Regionszentrale 3 beanspruchen. Sende- und Empfangsmittel sind aufzugseitig direkt in der Kabine angebracht. Dadurch können in Not geratene Personen ihre missliche Lage direkt der Gebäude­oder Regionszentrale mitteilen.In addition to the transmission of digital information, the system has the ability to transmit audio information. The operator of a regional center 3 has the possibility of making direct contact with persons involved in a process 11 on a speech channel which is separated in frequency from the data channel. By means of telealarm 5, the operator of a house control center or the on-site service technician can claim verbal support in solving system problems from the regional control center 3. Sending and receiving means are on the elevator side installed directly in the cabin. This enables people in need to report their predicament directly to the building or regional headquarters.

Die Regionszentrale 3 gestattet einen Einblick in sämtli­che ihr untergeordneten Prozesse 11. Durch Aussenden eines Telegramms mit Steuer- und Adressdaten der anzuwählenden Peripherie 10 erhält die Regionszentrale 3 bei Bedarf direkten Zugang zu den Prozessdaten. Im Normalfall wird jedoch, wie weiter unten erwähnt, der Datenaustausch in umgekehrter Richtung erfolgen. Die Regionszentrale 3 ruft einen Kommunikationsmodul 7 nur dann an, wenn eine gewisse Zeit ohne Kontaktnahme vergangen ist. Von der Regionszentrale 3 aus lassen sich Funktionstests in einzelnen Prozessen 11 durchführen und im Störungsfall Aktionen zur Behebung des Fehlerzustandes einleiten. Aus diesen Gründen muss das vorgesehene Modem 2 sowohl selbstwählend als auch selbstantwortend sein. Ausserdem muss es den Anforderungen des Telearms 5 genügen. Mit einer in der Regionszentrale 3 plazierten, in den Figuren nicht erwähnten Zusatzschaltung lassen sich in vergleichbarer Weise mit den oben genannten Datenkanälen Sprechverbindungen mit der Gebäudezentrale 6 oder den einzelnen Peripherien 10 aufbauen.The regional center 3 allows an insight into all of its subordinate processes 11. By sending a telegram with control and address data of the peripherals 10 to be selected, the regional center 3 receives direct access to the process data, if required. Normally, however, as mentioned below, the data exchange will take place in the opposite direction. The regional center 3 calls a communication module 7 only if a certain time has passed without contact. Function tests can be carried out in individual processes 11 from the regional center 3, and actions to remedy the fault condition can be initiated in the event of a fault. For these reasons, the modem 2 provided must be both self-selecting and self-answering. In addition, it must meet the requirements of telearm 5. With an additional circuit placed in the regional center 3 and not mentioned in the figures, voice connections can be established in a comparable manner with the above-mentioned data channels to the central building 6 or the individual peripherals 10.

Gebäudeseitig scheidet die Wähleinheit 7.5 den Datenver­kehr vom Sprechverkehr in ankommender und abgehender Richtung. Als Bindeglied zwischen dem Telephonnetz 4 und dem Busmodul 8 einerseits und zwischen dem Telephonnetz 4 und dem Kommunikationsmodul-Modem 2 andererseits teilt die Wähleinheit 7.5 den telephonnetzseitigen Informationskanal in den Sprechkanal 12 und in den Datenkanal 13 auf. In abgehender Richtung setzt das Modem 2 die Daten mittels Frequenzumtastverfahren in ein übertragbares Zweifrequenz­signal um. In ankommender Richtung wandelt es die frequenzmodulierten Signale wieder in rechnerkompatible Eins-Null-Signale zurück.On the building side, the dialing unit 7.5 separates the data traffic from voice traffic into incoming and outgoing Direction. As a link between the telephone network 4 and the bus module 8 on the one hand and between the telephone network 4 and the communication module modem 2 on the other hand, the dialing unit 7.5 divides the telephone network-side information channel into the speech channel 12 and the data channel 13. In the outgoing direction, the modem 2 converts the data into a transferable two-frequency signal by means of frequency shift keying. In the incoming direction, it converts the frequency-modulated signals back into computer-compatible one-zero signals.

Pro Gebäude übernimmt ein Kommunikationsmodul 7 den Daten­verkehr zwischen der Regionszentrale 3 und den in diesem Gebäude zu verwaltenden Prozessen 11. Der durch ein EPROM-­residentes Kommunikationsprogramm gesteuerte Kommunika­tionsrechner 7.1 übermittelt die Prozessdaten via Modem 2 und Telephonnetz 4 an die Regionszentrale 3. Funktionell dient der Kommunikationsmodul 7 einerseits als Daten­zwischenspeicher 7.2 zwischen den beiden asynchronen Kommunikationslinien Telephonnetz 4/Gebäudebus 9 und andererseits zur Steuerung der Kommunikation innerhalb des Gebäudes. Mit sequenzieller, periodischer Abfrage übernimmt der Kommunikationsrechner 7.1 via dem weiter unten erläuterten Busmodul 8/Gebäudebus 9 von den ange­schlossenen Prozessen 11 die Daten und legt sie in dem Datenzwischenspeicher 7.2 ab. Dabei handelt es sich nicht nur um eine Datenabfrage. Bei jeder Kontaktnahme mit den Peripheriemodulen 10 werden diese von dem Kommuni­kationsrechner 7.1 auf Fehlverhalten geprüft. Meldungen über gestörte Peripheriemodule 10 werden ebenfalls im Datenzwischenspeicher 7.2 abgelegt und zusammen mit den gesammelten Prozessdaten periodisch an die Regionszentrale 3 weitervermittelt. Der Kommunikationsmodul 7 entscheidet nicht, ob Prozessdaten übertragungsrelevant sind oder nicht. Er übernimmt lediglich den oben erwähnten Daten­verkehr zwischen der vor Ort-Peripherie 10 und der Regionszentrale 3. Prozessmeldungen werden ausschliesslich von den Peripheriemodulen 10 zu übertragungsrelevanten Prozessdaten aufbereitet und an den Kommunikationsmodul 7 weitergegeben.For each building, a communication module 7 takes over the data traffic between the regional center 3 and the processes 11 to be managed in this building. The communication computer 7.1 controlled by an EPROM-resident communication program transmits the process data to the regional center 3 via modem 2 and telephone network 4. The communication module serves functionally 7 on the one hand as a data buffer 7.2 between the two asynchronous communication lines telephone network 4 / building bus 9 and on the other hand for controlling communication within the building. With sequential, periodic interrogation, the communication computer 7.1 takes over the data from the connected processes 11 via the bus module 8 / building bus 9 explained below and stores them in the data buffer 7.2. It is not just a question of data. Every time you contact us With the peripheral modules 10, these are checked by the communication computer 7.1 for malfunctions. Messages about disturbed peripheral modules 10 are also stored in the data buffer 7.2 and periodically forwarded to the regional center 3 together with the collected process data. The communication module 7 does not decide whether process data is relevant for transmission or not. It merely takes over the above-mentioned data traffic between the on-site periphery 10 and the regional center 3. Process messages are processed exclusively by the peripheral modules 10 into process data relevant to transmission and forwarded to the communication module 7.

Wenn keine Regionszentrale 3 vorgesehen ist oder wenn diese störungshalber ausfällt oder wenn eine zusätzliche Überwachung von einem Gebäudekontrollraum aus gewünscht wird, können die Prozesse 11 eines Gebäudes von der Gebäudezentrale 6 aus inspiziert werden. Ein handelsübli­cher Personalcomputer 6.1 steht über die serielle Schnitt­stelle 7.4 mit dem System in Verbindung. Die auch mit einem Drucker ausrüstbare Gebäudezentrale 6 entspricht funktionell in vereinfachter Weise der Regionszentrale 3. Die im Datenzwischenspeicher 7.2 anstehenden Daten werden vom Personalcomputer 6.1 zu folgenden Zwecken weiterverar­beitet:
- Protokollierung der Betriebs-, Alarm- und Unterhalts­ daten aller an das System angeschlossenen Prozesse 11 eines Gebäudes
- Realisierung einfacher Statistikfunktionen
- Ausgabe von mit erster Priorität belegter Präventiv­unterhaltsmeldungen.
Von der beispielsweise mit 1.1 indizierten Gebäudezentrale 6 lassen sich nicht nur die mit 1.1.1 bis 1.1.N indizier­ten Prozesse 11 (Fig. 1) überwachen, sondern wie von der Regionszentrale 3 aus auch Funktionstests und Aufrufe bestimmter Prozessparameter in einzelnen Prozessen 11 durchführen.
If no regional control center 3 is provided or if this fails due to malfunction or if additional monitoring from a building control room is desired, the processes 11 of a building can be inspected from the building control center 6. A commercially available personal computer 6.1 is connected to the system via the serial interface 7.4. The building control center 6, which can also be equipped with a printer, corresponds in a simplified manner to the regional control center 3. The data pending in the data buffer 7.2 are further processed by the personal computer 6.1 for the following purposes:
- Logging of operational, alarm and maintenance data of all processes 11 of a building connected to the system
- Realization of simple statistical functions
- Output of preventive maintenance reports with first priority.
Not only the processes 11 (FIG. 1), which are indexed with 1.1.1 to 1.1.N, can be monitored from the building control center 6, for example 1.1, but, as from the regional control center 3, function tests and calls of certain process parameters can also be carried out in individual processes 11.

Innerhalb eines Gebäudes werden Informationen mittels dem Busmodul 8 und dem Gebäudebus 9 zwischen dem Kommunika­tionsmodul 7 und den Peripheriemodulen 10 ausgetauscht. Der Busmodul 8 moduliert abgehende Sprechinformationen auf die Sprechträgerfrequenz 19 und Dateninformationen auf die Datenträgerfrequenz 17. Der im wesentlichen aus Übertrager- und Resonanzkreisen bestehende Leitungskoppler 8.3 überträgt die frequenzmodulierten Signale auf den Gebäudebus 9. Vom Gebäudebus 9 ankommende Information gelangt über den Leitungskoppler 8.3 an den Eingang des Demodulators 8.2, der sie mittels Filterung und Demodula­tion in ihre ursprüngliche Lage zurückversetzt und ent­sprechend dem Informationsinhalt an den Sprech- oder Datenkanal weiterleitet.Information is exchanged within a building by means of the bus module 8 and the building bus 9 between the communication module 7 and the peripheral modules 10. The bus module 8 modulates outgoing speech information on the speech carrier frequency 19 and data information on the data carrier frequency 17. The line coupler 8.3, which essentially consists of transmitter and resonance circuits, transmits the frequency-modulated signals to the building bus 9. Information arriving from the building bus 9 arrives at the input via the line coupler 8.3 of the demodulator 8.2, which returns it to its original position by means of filtering and demodulation and forwards it to the voice or data channel in accordance with the information content.

Zur Informationsübertragung zwischen Informationsquellen und Informationssenken weist die in den Figuren 4 und 6 dargestellte Einrichtung einen Netzbus 14 als Ausführungs­variante des Gebäudebusses 9 auf. Bei bereits bestehender Infrastruktur in Form von Nachrichtenkabeln dient an Stelle des eigenleitungslosen Netzbuses 14 ein separat verlegtes zweiadriges Kabel als Gebäudebus 9. Der Netzbus 14 ist ein serieller Bus unter Ausnützung der gebäudeweit vorhandenen Starkstrom-Elektroinstallation. Er benötigt kein eigenes Leitungsnetz und ermöglicht die Einspeisung oder den Empfang der Signale an jeder durch Steckdosen zugänglichen Stelle des Starkstromnetzes. Aus fernmelde­hoheitlichen Gründen ist dieses Mittel zur Informations­übertragung bezüglich Reichweite, Sendeleistung und Kanalfrequenzen je nach postalischen Vorschriften einge­schränkt. Die Reichweite beschränkt sich im Normalfall auf das eigene Grundstück, die Sendeleistung bewegt sich im Bereiche von wenigen Milliwatts und das zulässige Frequenzband hat unterhalb des Langwellenbandes zu liegen. Damit keine Drittsysteme ausserhalb des Grundstückes ge­stört werden oder Störsignale von ausserhalb das eigene System beeinflussen, sind Trägerfrequenzsperren einspei­sungsseitig vorgesehen. Der Austausch von Daten zwischen Sendern und Empfängern erfolgt auf dem Quittungsprinzip. Ein aktiver Sender setzt Information in Form von Telegram­men mit Steuer-, Adress- und Datenzeichen ab. Im Anschluss daran erwartet er vom aufgerufenen Empfänger ein Quittungs­ telegramm. Erst wenn der aktive Sender eine gültige Rück­antwort empfangen hat, ist die Informationsübermittlung abgeschlossen. Als weitere Massnahme zur Erhöhung der Kommunikationssicherheit werden die Signale netzsynchron ausgesendet beziehungsweise empfangen. Der von den Phasenanschnittsteuerungen nicht benutzte Nulldurchgangs­bereich der Phasenspannungen gewährleistet ein weitgehend störungsfreies Zeitfenster, in dem digitale Daten über­tragen werden können. Die genannten Übertragungsverfahren ergeben eine Datenübertragung mit hoher Zuverlässigkeit und weitgehender Sicherheit gegen Fremdbeeinflussung.For the transmission of information between information sources and information sinks, the device shown in FIGS. 4 and 6 has a network bus 14 as a variant of the building bus 9. In the case of existing infrastructure in the form of communication cables, a separately routed two-wire cable serves as the building bus 9 instead of the intrinsically-free network bus 14. The network bus 14 is a serial bus using the high-voltage electrical installation available throughout the building. It does not require its own line network and enables signals to be fed in or received at any point in the power network that is accessible via sockets. For reasons of telecommunications authority, this means of transmitting information regarding range, transmission power and channel frequencies is restricted depending on the postal regulations. The range is normally limited to your own property, the transmission power is in the range of a few milliwatts and the permissible frequency band has to be below the long-wave band. Carrier frequency locks are provided on the supply side so that no third-party systems outside the property are disturbed or interference signals from outside influence your own system. The exchange of data between transmitters and receivers is based on the acknowledgment principle. An active transmitter sends information in the form of telegrams with control, address and data characters. He then expects a receipt from the called recipient telegram. The information transfer is only completed when the active sender has received a valid reply. As a further measure to increase communication security, the signals are transmitted or received in synchronism with the network. The zero crossing range of the phase voltages not used by the phase gating controls ensures a largely interference-free time window in which digital data can be transmitted. The transmission methods mentioned result in data transmission with high reliability and extensive security against external interference.

Der in Fig. 7 dargestellte Frequenzplan zeigt eine Möglich­keit zur frequenzmässigen Trennung zwischen Sprech- und Datenkanal. Trägerfrequenzamplitude 20 und obere Bandgrenze unterstehen postalischen Vorschriften. Sprech- und Daten kanalbandbreite sowie Wahl der Sprechträgerfrequenz 19 und Datenträgerfrequenz 17 sind postalisch freigegeben.The frequency plan shown in Fig. 7 shows a possibility for frequency separation between speech and data channel. Carrier frequency amplitude 20 and the upper band limit are subject to postal regulations. Speech and data channel bandwidth and choice of speech carrier frequency 19 and data carrier frequency 17 are released by post.

Jeder Prozess 11 besitzt einen eigenen, an den spezifi­schen Prozesscharakter anpassbaren, autonomen vor Ort-­Peripheriemodul 10. Die Regionszentrale 3 und der Peripheriemodul 10 sind bezüglich Datenaustausch gleich­berechtigte Partner. Jeder kann einen Verbindungsaufbau zwecks Datenaustausch einleiten. Der Peripheriemodul 10 wird wie oben erwähnt von dem Kommunikationsmodul 7 zyklisch zum Datenaustausch aufgefordert. Dabei werden von dem Peripheriemodul 10 nur Ereignisse übertragen, d.h. der Peripheriemodul 10 überträgt bei den zyklischen Anfragen keine Prozesszustände, sondern lediglich die zwischen zwei Zyklen eingetretenen Statusänderungen. Aussergewöhnliche Anlagezustände gibt der Peripherie­modul 10 automatisch und unaufgefordert weiter. Über mindestens einen Binär-/Analogeingang 10.7/10.9 erfasst der Peripherierechner 10.7 die mindestens an einem Binär-/Analogdatenpunkt 11.1/11.3 anstehenden Prozess­daten. Befehle und analoge Grössen werden mittels minde­stens einem Binär-/Analogausgang 10.8/10.10 an mindestens eine Binär-/Analogfunktion 11.2/11.4 an den Prozess 11 weitergegeben. Der Zeitgeber 10.4 liefert dem Peripherie­rechner 10.1 den Arbeitstakt zur zyklischen Bearbeitung der im Peripherieprogrammspeicher 10.3 geladenen Anwender­programme. Der Peripherierechner 10.1 steuert den über Peripheriebus 10.11 laufenden Datenverkehr. Alle an den Peripheriebus 10.11 angeschlossenen und durch Adressen gekennzeichneten Datenquellen und Datensenken können Daten senden und Daten empfangen. Eine erste Schnittstelle 10.5 wandelt parallele Daten in serielle Daten, bestimmt deren Übertragungsgeschwindigkeit und schickt sie Richtung Kommunikationsmodul 7. Eine sinngemässe Übertragungsweise gilt in umgekehrter Richtung. Eine zweite bidirektionale Schnittstelle 10.6 bietet die Möglichkeit zum Anschluss eines Wartungskoffers 15, der die vor Ort-Bedienung und Abfrage des Peripheriemoduls 10 sowie direkte Eingriffs­ möglichkeiten in den jeweiligen Prozess erlaubt. Zur softwaremässigen Anpassung der verschiedenartigen Prozesse 11 an den standardisierten Peripheriemodul 10 wird eine Umwandlung der anlagespezifischen Informationen in allgemeingültige Informationen vorgenommen. Die anlagespezifische Information Relais X.X EIN/AUS wird beispielsweise in die allgemeingültige Information Türe AUF/ZU umgewandelt. Zur Verwaltung von Aufzugsanlagen werden nicht nur Informationen benötigt, die von realen Datenpunkten geliefert werden. Auf von Berechnungen stammende Werte, wie Betriebs-, Verkehrs-, Unterhalts­grössen, etc., erfolgt der Zugriff über virtuelle Datenpunkte. Reale wie auch virtuelle Datenpunkte lassen sich arithmetisch und logisch verknüpfen sowie mit Bedingungen, Grenzwerten etc. beaufschlagen. Ein nicht im voraus starr strukturiertes, intelligentes Software­system übernimmt unter Verwendung von heuristischen Arbeitsmitteln die Interpretation der an den Datenpunkten anstehenden Information. Die Systemkomponenten Datenbasis, Wissensbasis und Folgerungsprozedur bilden die Intelligenz des Peripheriemoduls 10. Die Datenbasis umfasst sämtliche Information der Datenpunkte, Fakten, Parametergrössen, etc. des laufenden Prozesses. Die Wissensbasis enthält eine Grundmenge von hypothetischen Regeln, die ein quali­fizierter Operateur zur Handhabung von Prozessmeldungen anwenden würde. Die Folgerungsprozedur verknüpft Daten­basis mit der Wissensbasis. Dabei werden die Regeln unter Berücksichtigung der in ihnen eine Rolle spielende Datenbasis-Information untersucht. Die Folgerungsprozedur erschliesst aus den in der Wissensbasis gemachten Urteile, Beiordnungen und Folgerungen neue Information aus vorhan­dener. Bei Ausfall von beispielsweise einer Relaissequenz schliesst die Folgerungsprozedur auf Grund der aktuellen Information und auf Grund der in der Wissensbasis angeleg­ten Regeln über die ausgefallene Relaissequenz auf den den Ausfall verursachenden Relaiskontakt. An Hand der aus dem ersten Folgerungsschritt gewonnenen neuen Information und weiteren Regeln wird die Suche nach der Ursache so lange fortgesetzt, bis beispielsweise der den Ausfall verursachende, offengebliebene Sicherheitsschalter gefunden ist.Each process 11 has its own autonomous on-site peripheral module 10 which can be adapted to the specific process character. The regional center 3 and the peripheral module 10 are equal partners with regard to data exchange. Anyone can initiate a connection to exchange data. As mentioned above, the peripheral module 10 is cyclically requested by the communication module 7 to exchange data. In doing so only transmit events from the I / O module 10, ie the I / O module 10 does not transmit any process states for the cyclical requests, but only the status changes that occurred between two cycles. The peripheral module 10 passes on unusual system states automatically and without being requested. Via at least one binary / analog input 10.7 / 10.9, the peripheral computer 10.7 records the process data present at at least one binary / analog data point 11.1 / 11.3. Commands and analog variables are passed on to at least one binary / analog function 11.2 / 11.4 to process 11 by means of at least one binary / analog output 10.8 / 10.10. The timer 10.4 supplies the peripheral computer 10.1 with the work cycle for cyclical processing of the user programs loaded in the peripheral program memory 10.3. The peripheral computer 10.1 controls the data traffic running over the peripheral bus 10.11. All data sources and data sinks connected to the peripheral bus 10.11 and identified by addresses can send and receive data. A first interface 10.5 converts parallel data into serial data, determines its transmission speed and sends it towards the communication module 7. A corresponding transmission method applies in the opposite direction. A second bidirectional interface 10.6 offers the possibility of connecting a maintenance case 15, which enables on-site operation and query of the peripheral module 10 as well as direct intervention opportunities in the respective process allowed. In order to adapt the various processes 11 to the standardized peripheral module 10 in terms of software, the system-specific information is converted into general information. The system-specific information relay XX ON / OFF is converted, for example, into the general door OPEN / CLOSE information. The management of elevator systems not only requires information that is supplied by real data points. Values derived from calculations, such as operational, traffic, maintenance parameters, etc., are accessed via virtual data points. Real as well as virtual data points can be linked arithmetically and logically as well as conditions, limit values etc. An intelligent software system that is not rigidly structured in advance takes over the interpretation of the information at the data points using heuristic tools. The system components database, knowledge base and reasoning procedure form the intelligence of the peripheral module 10. The database includes all information of the data points, facts, parameter sizes, etc. of the ongoing process. The knowledge base contains a basic set of hypothetical rules that a qualified operator would use to handle process messages. The reasoning procedure links the database with the knowledge base. The rules below Consideration of the database information that plays a role in them. The reasoning procedure reveals new information from existing information based on the judgments, assignments and conclusions made in the knowledge base. In the event of failure of, for example, a relay sequence, the inference procedure, based on the current information and on the basis of the rules established in the knowledge base about the failed relay sequence, concludes the relay contact causing the failure. Using the new information obtained from the first inference step and further rules, the search for the cause is continued until, for example, the open safety switch causing the failure is found.

Claims (3)

1. System zur zentralen Verwaltung, regionalen Inspektion und zur lokalen Überwachung von dezentralen Aufzugsan­lagen, welches in einer modularen Struktur auf Verwal­tungsebene eine Verwaltungszentrale (1) mit Mitteln und Methoden zur elektronischen Datenverarbeitung aufweist, der über eine Fernmeldeverbindung auf regio­naler Ebene mindestens eine mit Mitteln und Methoden zur Garantierung des Anlageunterhaltes versehene Regionszentrale (3) untergeordnet ist, an die über eine Fernmeldeverbindung auf lokaler Ebene mindestens ein Gebäude mit Rechnermitteln zur Diagnose von Anlagetätig­keiten mindestens einer Anlage angeschlossen ist,
dadurch gekennzeichnet,
- dass durch die modulare Struktur des Systems die regionale Ebene ohne die Verwaltungsebene, die lokale Ebene ohne die regionale Ebene, die Prozessebene ohne die lokale Ebene funktionsfähig bleibt,
- dass das System Mittel zur Übertragung von Audio-­Information von der regionalen Ebene bis zur Prozess­ebene und umgekehrt aufweist,
- dass das System eine Gebäudezentrale (6) aufweist, die mit Mitteln und Methoden zur Inspektion der in demselben Gebäude vorhandenen Prozesse (11) versehen ist,
- dass die Rechnermittel pro Gebäude ein den Datenver­ kehr von und zu der Regionszentrale (3) einerseits und andererseits innerhalb dem Gebäude regelnder Kommunikationsmodul (7) aufweist,
- dass die Rechnermittel pro Prozess (11) ein auto­nomer, an den Prozess (11) anpassbarer und mit heuristischen Arbeitsmitteln versehener, auch von einem Wartungskoffer (15) bedienbaren vor Ort-­Peripheriemodul (10) zur Erfassung und Verarbeitung von Prozessdaten aufweist und
- dass das System als gebäudeinternes Kommunikations­mittel zur Übertragung von Sprech- und Dateninforma­tion einen Gebäudebus (9) und pro Informationsquelle/­Informationssenke einen Busmodul (8) aufweist.
1. System for central administration, regional inspection and for the local monitoring of decentralized elevator systems, which in a modular structure at administration level has an administration center (1) with means and methods for electronic data processing, which has at least one with means and via a telecommunication connection at regional level Subordinate methods for guaranteeing the maintenance of the plant are subordinate to the regional center (3), to which at least one building with computer means for diagnosing plant activities of at least one plant is connected via a telecommunication connection at the local level,
characterized by
- the modular structure of the system means that the regional level without the administrative level, the local level without the regional level and the process level without the local level remain functional,
that the system has means for transmitting audio information from the regional level to the process level and vice versa,
- that the system has a building control center (6) which is provided with means and methods for inspecting the processes (11) present in the same building,
- That the computer means per building the data ver has traffic from and to the regional center (3) on the one hand and on the other hand within the building regulating communication module (7),
- That the computer means per process (11) has an autonomous, adaptable to the process (11) and provided with heuristic tools, which can also be operated by a maintenance case (15), on-site peripheral module (10) for recording and processing process data, and
- That the system as a building-internal communication means for the transmission of voice and data information has a building bus (9) and a bus module (8) per information source / information sink.
2. System nach Anspruch 1,
dadurch gekennzeichnet,
dass der Gebäudebus (9) ein serieller, eigenleitungs­loser Netzbus (14) unter Ausnützung der gebäudeweit vorhandenen Starkstrom-Elektroinstallation ist.
2. System according to claim 1,
characterized by
that the building bus (9) is a serial, intrinsically-free network bus (14) using the building-wide electrical power installation.
3. System nach Anspruch 1,
dadurch gekennzeichnet,
dass der Gebäudebus (9) ein serieller Zweidrahtbus ist, dem an Stelle der Starkstrom-Elektroinstallation ein separat verlegtes zweiadriges Kabel als Informations­übertrager dient.
3. System according to claim 1,
characterized by
that the building bus (9) is a serial two-wire bus, which uses a separately laid two-wire cable as an information transmitter instead of the heavy current electrical installation.
EP87107703A 1986-07-07 1987-05-27 Remote monitoring system for lift installations Expired - Lifetime EP0252266B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87107703T ATE54650T1 (en) 1986-07-07 1987-05-27 REMOTE LIFT MANAGEMENT SYSTEM.

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Application Number Priority Date Filing Date Title
CH2736/86 1986-07-07
CH273686 1986-07-07

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EP0252266A1 true EP0252266A1 (en) 1988-01-13
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JP (2) JPS6327382A (en)
CN (1) CN1007342B (en)
AT (1) ATE54650T1 (en)
AU (1) AU591568B2 (en)
CA (1) CA1269464A (en)
DE (1) DE3763766D1 (en)
DK (1) DK170435B1 (en)
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EP1464605A1 (en) 2003-03-26 2004-10-06 Inventio Ag Method for managing an elevator- or escalator system
EP1847500A2 (en) * 2006-04-20 2007-10-24 Esse-Ti S.r.l. Elevator alarm and management system
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CN108910630A (en) * 2018-07-06 2018-11-30 永大电梯设备(中国)有限公司 Multiple lift control system and method based on multiple agent competitive way

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DK346187A (en) 1988-01-08
ES2016822B3 (en) 1990-12-01
NO872792D0 (en) 1987-07-03
ATE54650T1 (en) 1990-08-15
JPH0496474U (en) 1992-08-20
DE3763766D1 (en) 1990-08-23
CA1269464A (en) 1990-05-22
DK346187D0 (en) 1987-07-06
US4771865A (en) 1988-09-20
PT85261A (en) 1988-07-29
FI84531B (en) 1991-08-30
DK170435B1 (en) 1995-09-04
PT85261B (en) 1993-07-30
FI872771A0 (en) 1987-06-22
AU591568B2 (en) 1989-12-07
JPH0630776Y2 (en) 1994-08-17
HK64191A (en) 1991-08-23
JPS6327382A (en) 1988-02-05
NO170177B (en) 1992-06-09
NO872792L (en) 1988-01-08
CN87104634A (en) 1988-01-27
NO170177C (en) 1992-09-16
EP0252266B1 (en) 1990-07-18
FI84531C (en) 1991-12-10
CN1007342B (en) 1990-03-28
AU7525687A (en) 1988-01-14
FI872771A (en) 1988-01-08

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