An elevator operation quality detecting system and a detecting method. The system comprises an elevator operation quality detector (1); the elevator operation quality detector (1) comprises a power supply (11) having a charging function, a central processing module (12), and a data transmission module (13), a data storage module (14), a data acquisition module (15) and a touch display module (16) which are connected to the central processing module (12); the data acquisition module (15) is connected to a signal sensing module (17); the signal sensing module (17) comprises a tri-axial acceleration sensor (18) and a tri-axial angular velocity gyroscope (19) which are both connected to the data acquisition module (15); the data transmission module (13) comprises a GPRS wireless transmission module (20) and a USB interface circuit (21) which are both connected to the central processing module (12); the central processing module (12) is a DSP main controller. The system further comprises a weighing limiting bearing frame (3), a water belt (2), and a water charging/discharging hose (39). An elevator operation quality detecting accuracy rate and free counterweighting are increased, and occurrence of a detection accident is effectively avoided.

An illustrative example embodiment of an elevator brake control device includes at least one primary switch configured to selectively conduct current for lifting all of a plurality of brake applicators. A plurality of secondary switches are each associated with one of the brake applicators. Each of the secondary switches is configured to selectively conduct current for lifting the associated one of the brake applicators. The plurality of secondary switches are between the primary switch and the associated one of the brake applicators.

There is provided an ascension aid for a wind turbine comprising a cabin, a catch unit which co-operates with a securing cable as a securing means and a testing unit for testing the functionality of the catch unit. The testing unit has a base plate, a closure counterpart holder, a closing member and an actuating element coupled to the closing member. By actuation of the actuating element the closing member and the closure counterpart holder clamp the securing cable and the closing member and the closure counterpart holder move upwardly along the base plate. Upon release or de-activation of the actuating element the closing member releases the securing cable and the catch unit trips.

An elevator counterweight assembly (11) includes a counterweight structure (38), at least one safety brake (12a, 12b) mounted on the counterweight structure (38), and a safety actuation mechanism (16) including a connection (17) for a suspension member (18). The safety actuation mechanism (16) is configured to move, relative to the counterweight structure (38), between a normal position, and a safety position. In the safety position the safety actuation mechanism (16) is arranged to actuate the at least one safety brake (12a, 12b) and thereby brake the counterweight structure (38). The counterweight assembly (11) also includes a mechanical actuator (22), configured, when actuated, to apply a force to the safety actuation mechanism (16) and thereby move the safety actuation mechanism (16) from the normal position to the safety position, e.g. for the purposes of a handover test.

A brake (200) comprising a braking surface (202); a brake lever (206) arranged to move between a retracted position and an engaged position; a brake lining (210) and at least one non-contact sensor (212). The brake lining is disposed between the braking surface and the brake lever such that when the brake lever is in the engaged position the brake lining is in contact with the braking surface. The at least one non-contact sensor is arranged to output a signal dependent on the distance between the non-contact sensor and the braking surface.

A method of testing of an elevator safety brake system is provided. The method includes initiating an automated test procedure. The method also includes triggering an electronic safety actuator. The method further includes generating braking data about performance of the electronic safety actuator. The method yet further includes analyzing the braking data. The method also includes generating a report to indicate whether the elevator safety brake system performed adequately.

A condition monitoring system for performing a transformation of mixed elevator data is provided. The condition monitoring system includes a computer sub-system. The computer sub-system includes a memory storing transformation software and a processor coupled to the memory. The processor executes the transformation software to cause the condition monitoring system to acquire quantitative and qualitative information and transform the quantitative and qualitative information to produce transformed information. The processor executes the transformation software to further cause the condition monitoring system to execute analytics on the transformed information and generate predictions based on the analytics of the transformed information.

The invention relates to an elevator comprising an elevator control having a motor drive of an elevator motor driving an elevator car on an movement path, which motor drive comprising a frequency converter with a rectifier bridge designed to be connected to mains, a converter bridge for feeding the elevator motor and an intermediate DC circuit located in-between, the elevator further comprising a brake drive for supplying energy to at least two motor brakes with the brake drive being connected to the intermediate DC circuit as well as an emergency power supply battery designed to allow safe release of passengers in case of a power outage. According to the invention the battery is connected to the intermediate DC circuit, and the elevator control has a measuring circuit connected to the intermediate DC circuit and the elevator control has a battery testing module which is configured to apply a defined load to the battery and to measure the voltage of the DC circuit for a defined time period. The battery testing module comprises a comparator for comparing the measured voltage with at least one stored first threshold value, whereby the elevator control is configured to issue a replacement signal for the battery dependent on the signal of the comparator.

A method and system for testing an elevator car door interlock and deterrent mechanism in an elevator system is disclosed. The method includes the steps of: ensuring that no passengers are in the elevator car and closing the elevator car door; operating the elevator car to move it away from the selected landing; commanding the elevator car door to open for a predetermined duration and measuring the displacement of the elevator car door from a closed position; and closing the elevator car door and operating the elevator car to return to a landing.

A method for self-testing a monitoring device monitoring an integrity status of an elevator suspension member arrangement includes the monitoring device having a voltage generation arrangement for generating electric voltages and applying the electric voltages to cords in suspension members of the suspension member arrangement. The monitoring device has a voltage analyzer arrangement for detecting a deterioration in the integrity status based on modifications in the applied electric voltages upon transmission through the cords. The method includes the steps of: specifically modifying the generated electric voltages to systematically induce modifications in the applied electric voltages upon transmission through the cords which, under normal operation conditions of the monitoring device, would be interpreted by the monitoring device as indicating the deterioration in the integrity status; verifying whether the deterioration in the integrity status is correctly detected; and initiating a self-test-failure-action if the deterioration in the integrity status is not correctly detected.