PRACTICAL APPLICATIONS FOR THE DEVELOPMENT OF DIAGNOSTIC EQUIPMENT OF LIFT EQUIPMENT
Keywords:elevator, diagnostics, control points, algorithm, event list
The methods of collecting and analyzing primary information about possible malfunctions of elevator electromechanical equipment are considered. Experimental data and experience of the service of repairing elevators of public utilities allowed obtaining and performing a statistical analysis of the most typical malfunctions of elevator equipment for various purposes. On the basis of the system analysis of the well-known repairs carried out on complex mechatronic equipment, practical techniques for ranking absolutely all faults and elevator equipment components in which these events were recorded are considered. Using the catalogs of commercially available technical means for monitoring technological quantities in real time, the selection of receiving elements, sensors and sensors suitable for the implementation of a technical diagnostics device was made. The use of fault modeling using mathematical descriptions of logical interrelationships of monitored values allows you to specify the choice of means of monitoring technological parameters with a given measurement accuracy, which guarantees the possibility of further comparison of measured values with given intervals of varying them under different operating conditions of mechatronic devices. On the basis of the practical application of the hierarchical structures of individual components of the equipment, the methods of preparing a real list of events for the development of algorithms for diagnosing the required depth are considered. The paper describes an example of the development of a functional integrity scheme that allows you to synthesize logical diagnostic devices of arbitrary structure. An algorithm for identifying events with a diagnostic device is given, the functionality of which the developer can arbitrarily change, taking into account the means used to monitor physical quantities and the requirements for the device for diagnostic control of the entire set of equipment of the mechatronic system. Obtained in the examples of binary codes of possible faults illustrate the possibility of widespread use of similar digital devices based on microcontrollers and logical microassemblies for the implementation of diagnostic control tools in the elevator industry with any terms of their manufacture and operation.
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