Abstract: An elevator monitoring system, includes: one or more sensors; a controller arranged to acquire sensor data from the one or more sensors; analyse the sensor data to identify a first event and a second event, the first event corresponding to an elevator door motion; categorize the first event based on the sensor data for the first event and the second event.

Abstract: A monitoring system for a conveyance system includes a pressure sensor mounted on a conveyance apparatus; an accelerometer mounted on the conveyance apparatus; and a controller arranged to: acquire accelerometer data by sampling the accelerometer; store the accelerometer data in a buffer; acquire pressure sensor data by sampling the pressure sensor; determine from the pressure sensor data that a start or stop of the conveyance apparatus has occurred; and upon said determination, analyse the accelerometer data to determine a first position within the accelerometer data, wherein the first position is a position at which the start or stop of the conveyance apparatus occurred. Both pressure and acceleration readings are combined to determine a point in time at which motion started or stopped. The pressure sensor is used first to determine a robust indication that the motion state has changed (started or stopped).

Abstract: An exemplary method of managing remote control of an elevator system includes preventing any source located remotely from a site of the elevator system from controlling an operation of the elevator system when there is an indication that the elevator system is being serviced by a mechanic.

Abstract: An exemplary method of managing remote control of an elevator system includes preventing any source located remotely from a site of the elevator system from controlling an operation of the elevator system when there is an indication that the elevator system is being serviced by a mechanic.

Abstract: A communication bus containing master and slave devices includes a monitor unit for fault tolerant communications. In the event the master is unable to communicate, the monitor automatically assumes the master communication role. When more than one monitor is connected within the communications network, the monitor with the lowest communications address assumes the master communications role. The master includes software implementation that allows an operator to obtain data from any of the slave devices via the monitor.

Abstract: An interface monitor is connected with a LAN that is formatted with an RS-485 protocol and which is interconnected with a plurality of electrical distribution devices. The monitor includes a socket connection for receiving an RS-232 plug from a PC and software logic for interpreting between the RS-232 and RS-485 formats. The PC is enabled for communicating with each one of the electrical distribution devices.