DE4230790A1 - Monitoring system for air safety system with distributed stations - has stations with self testing capability and reporting facility back to central station that maintains data logging. - Google Patents

Abstract

The air safety system, for German national coverage, has a number of installations (ANL 1-ANL n) that can be radar and radio facilities. These are unmanned and located in remote locations. Each installation can consist of different equipment items (GER 11-GER nq) and have self test stages ('Built in test equipment' BITE). The units within an installation group are coupled to a local control and monitoring system (LCMS 1-LCMS n). These connect with remote control and monitoring systems (RCMS 1-RCMS n), connected in turn to a central station (ZEN). An expert system (WARTEX) that has a facility to log all maintenance and repairs to any of the stations is coupled to the central station. This provides an electronic `service book' that can be accessed at any time. USE/ADVANTAGE - Provides expert system input for maintenance and repair. Faults are recognised and corrected very early.

Description

The invention relates to a method for monitoring meh other technical systems according to the generic term of Pa claim 1.

Technical, in particular electronic devices and / or an layers with the help of suitable test, measurement, test and calibration devices are set to the target operating parameters provides and / or checked (serviced). It is also possible, automatically working in these devices and / or systems Install inspection devices. So that the devices and / or plants then at predeterminable times and / or automatically checked according to predefinable time periods become. Errors found are displayed and ge  reports. Such a self-test arrangement is in the narrow literary literature also "build in test equipment" Called (BITE). Such self-test arrangements are for Checking individual devices and / or assemblies that also called modules.

It has now been found that such self-tests regulations can only be used to a limited extent with extensive Plants, e.g. B. ground radar systems, and / or systems, for. B., a monitoring system that ent several such systems holds. It can happen disadvantageously that individual devices and / or modules are in order that the System or the system is still unsatisfactory work. Such errors are, for example, that one or more devices and / or modules just at the allowable limit of the tolerance of the work area. With such an error, there is no error message from the affected device. Such errors are disadvantageous Way very hard to find and therefore require a ho cost and work effort and require very high costs system or system downtimes.

The invention has for its object a genus to indicate moderate procedure with which in a reliable manner even minor faults in a plant or system become recognizable.

This problem is solved by the in the characteristic Part of claim 1 specified features. Advantage sticky refinements and / or further training are the Removable subclaims.  

A first advantage of the invention is that the Operating state of a system and / or a system be already recorded during its commissioning and continuously is taken care of. This can potentially emerge identified errors are identified and eliminated very early, sometimes even if an actual mistake is still there has not occurred.

A second advantage is that when there are several Chen and / or almost the same plants the experience comparable to the operation of the systems in a simple manner become.

A third advantage is that the maintenance person nal in a control center very reliable about the condition a system can be informed so that maintenance and / or repair work reliably and quickly become feasible.

Further advantages result from the following description exercise.

The invention is based on an embodiment example with reference to a schematic Darge put figure explained in more detail.

The figure shows a block diagram of a national flight safe system for one country, e.g. B. for Germany. The flight security system contains several systems ANL 1 to ANL n, e.g. B. radar and / or radio systems (radio beacons), some of which are unmanned and often in a difficult to access area Terrain are arranged. Each system consists of several  same and / or different devices GER 11 to GER nq. Every device has a self-test already mentioned order BITE. All devices in a system are with one local control and monitoring system LCMS ("local control and monitoring system "), which is a local storage of measured values and condition control device LAS owns. These local (local) control and over surveillance systems LCMS 1 to LCMS n can be operated by one region nal competent authority RCMS ("remote control and monito ring system ") can be monitored, e.g. using Nach directional transmission links. All regionally responsible Positions RCMS 1 to RCMS n are created by a central ZEN supervised.

Are the systems ANL 1 to in such a system ANL n far apart, e.g. B. all over German land distributed, very extensive, e.g. B. radar and / or Radio systems with transmitter / receiver modules, air conditioning and (emergency) Power supply systems, and must be made of Si security reasons, e.g. B. to ensure flight safety unit, continuously in operation, it is necessary that for each system or at least in the vicinity of maintenance personnel is available so that possible faults in the systems can be eliminated as quickly as possible. At same or Almost the same systems can therefore happen that for the plants - due to their spatial separation - under different maintenance personnel who are in follow the spatial separation when a difficult occurs help, if necessary, inadequate help can. This can be very disadvantageous long maintenance times arise.  

This disadvantage is avoided in the invention by that an expert system WARTEX is attached to the central ZEN is closed. This advantageously contains a da ten processing plant, in which at least all important Operating data of all systems continuously evaluated and be saved, e.g. B. advantageously in a so-called named database. It is useful to have the operating data to be able to feed when a system is commissioned and any change and / or correction, e.g. B. at a Repair and / or maintenance, also to save. Wei Furthermore, the expert system WARTEX from every system all faults and / or error messages as well as the type of Disposal notified. The WARTEX expert system includes hence a so-called electronic maintenance book.

With such an expert system there are a variety of Evaluations possible. For example, at Commissioning of a system determined target operating data ten, e.g. B. measurement protocols, consecutive or time who periodically compared with the actual operating data the. In this way, an impending mistake can be a so-called creeping mistakes, recognized in time and be eliminated before an actual error of the self-test arrangement BITE is recognized and reported.

It is also possible, for example, when it occurs of an error, all error messages of a self-test arrangement BITE, the real reason for the error messages like this as the measures to eliminate the error in the Ex storage system WARTEX.  

If an error occurs in any system, it can with the expert system it can be checked in a short time whether such or a similar error in any way had occurred before and like this error was eliminated. This information (error analysis) is the maintenance personnel responsible for the faulty system responsible, communicated. So it is advantageous possible to correct the error in the shortest possible time and thus very very cheap to eliminate.

It is particularly advantageous if the maintenance personnel over a communication link, e.g. B. the so-called called Datex-P network, and a data display device, e.g. B. a So-called terminal or a so-called PC ("personel computer "), connected to the Wartex expert system becomes. In such a case, the maintenance staff of Conduct a dialogue with the expert system and in this way also otherwise difficult to determine and / or resolve rare errors in the shortest possible time ben.

It is possible more expedient, defective plant and / or sy to replace stem parts and / or defective devices with new ones replace and these defective parts and / or devices in one central repair department ZI to repair. In In such a case, it is advantageous that the In ZI maintenance department with the WARTEX expert system is coupled and thus all related to the error data are recorded, evaluated and saved can.  

It is advantageous to use the WARTEX expert system as yourself to train a learning expert system. So the following are Benefits attainable:

• - Minimization of the time required for the error slide gnosis occur in complicated and / or rarely the mistakes;
• - Fusion of ver with preventive maintenance tied high achievable system reliability with the possibility of maximum utilization of Wear parts;
• - increasing the MTBF ("Mean Time Between Failures"), d. that is, an increase in reliability;
• - Recognize multilayered relationships in complicated systems and thus avoidance of Repeated repairs of apparent fault patterns without Discovery of the real cause;
• - Optimization of repair work for defective Assemblies;
• - improved availability of expert knowledge.

The learning programs of the WARTEX expert system enable after a reasonable time also the generation change in the To understand plant technology. About the preparation of the ) Operating data it gathers its experience with the new one System generation already during the guarantee period. At such a generation change may depend on  speed of the technical progress fend. For example, a first system can be have been in operation for 3 to 4 years, when the last one Plant of the same type starts operating. To this Maintenance personnel who are still learning receive the time experience gathered in previous years from the operation of the other systems.

The invention is not based on the embodiment described examples limited, but analogously to others reversible, for example on several power plants or sewage or pump systems or rail systems. With all these occasions genes and / or systems are geographically separate and / or system parts available with the invention can be monitored and / or serviced.

Claims (6)

1. Procedure for monitoring several technical systems, whereby

• - Each system is equipped with a test and error reporting system and
• - an error that has occurred in a system is reported both in the system and in a control center assigned to the systems,
  characterized,
• - that an expert system (WARTEX) is installed in the head office,
• that operational changes in a system are communicated to the expert system,
• - That when an error occurs in a system, the expert system checks whether a comparable error has already occurred in the same or in another system and
• - That the maintenance personnel of the faulty system is given an indication of the comparable errors and how to remedy them.

2. The method according to claim 1, characterized in that the expert system (WARTEX) as a self-learning expert system is trained. 3. The method according to claim 1 or claim 2, characterized ge indicates that the expert system (WARTEX) in a Da ten processing system is installed. 4. The method according to any one of the preceding claims characterized in that the maintenance personnel via a Message transmission link and a data display device access to the expert system is made possible. 5. The method according to any one of the preceding claims characterized in that the plants are spatially separated are and with communication links with a Central (ZEN) and that at least one Flight monitoring system is trained.   6. The method according to any one of the preceding claims, since characterized in that at least one plant as Ra daranlage is trained.