What is the principle of the elevator monitoring system?
The elevator monitoring system requires not only to monitor the state of the elevator but also to complete the daily management. From the function of the module, it can be divided into the following: the state of the elevator in the case of failure; the data collection of each working cycle; the daily management information. There is a lot of information to monitor the elevator in operation, rough classification: open limit switch, closed limit switch, touch panel, safety light curtain protection circuit, car door lock, door lock loop; safety circuit, emergency stop circuit, limit switch, limit switch state; driving information, call information, location information contracting state; operation time, frequency, inspection time, maintenance history etc..
The elevator monitoring, fault can be at a glance. As we all know, door system is elevator failure multiple components, elevator failure, there will always be some minor failures before parking, but these small failures are often ignored, because they will not cause elevator shutdown. The hall door locks and door knife gap adjustment inappropriate for example, uneven load operating conditions, will open the door and door knife wheel collisions, to lift emergency parking, but because the self-tuning function of the elevator, the elevator will automatically return to normal within a few minutes, "this kind of fault strong randomness, so often to be noticed, especially the automatic operation of the elevator, but with the accumulation of small fault will eventually lead to big failure or accident monitoring system will not miss these failures, can even locate the faulty floor so as to save the fault point search time maintenance personnel" in the event of failure, to prevent all kinds of information collection will help fault diagnosis and accident as long as the targeted set, all the required information can be collected.
For the statistics required by a manager, the monitoring system can gather different data in different categories. Such as judging the running state of the lift, mainly through the failure rate and failure rate to determine the number of faults commonly used in a running cycle to calculate the running time and the number of running different buildings and different uses of the elevator, it is hard to use this failure rate as a measure of the running state of the elevator according with running time number of faulty operation or to measure how many, can complete the monitoring system can accurately distinguish the statistics to the elevator working time, running times of data on the running state, it is easy to solve this problem. Daily management information includes annual inspection time, maintenance cost and accessories usage. "The above information is very easy to collect and transmit in a control unit based system. They have some / switch quantity, and some control variables are used to calculate and compare the internal variables. As long as the simple specific module is added, the network function can be used to complete the collection and transmission of the field data.
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