A safety system for use in a drive system includes first and second safety sensors that provide respective first and second sensor signals indicative of a safety condition of the drive system. The safety system includes a safety device that processes the first and second sensor signals to determine a safety state of the drive system, and that controls a unit of the drive system based on the safety state. The safety device includes a multi-core processor having first and second processing cores. In some embodiments, the first and second processing cores receive and process the respective first and second sensor signals in parallel to determine the safety state. In other embodiments, each of the first and second processing cores receive both the first and second sensor signals, and each of the first and second processing cores process both the first and second sensor signals to determine the safety state.

A conveyor device (2) comprises: a conveyance element (8) extending in a longitudinal direction between two spaced apart landing portions (4, 6) and configured to move for conveying people and/or goods between the two landing portions (4, 6); at least one balustrade (10, 12) located laterally at one side of the conveyance element (8) and extending along the longitudinal direction of the conveyance element (8); and at least one sensor (22, 23), which is configured for detecting the presence of a person in a detection zone (28) which is defined by a main detection direction (D), at least one detection angle (, ) and at least one detection range (R). The at least one sensor (22, 23) is located at or next to the at least one balustrade (10, 12), and the main detection direction (D) extends from the at least one sensor (22, 23) in a direction away from the balustrade (10, 12).

A monitoring system and a monitoring method for a passenger conveying device, and the passenger conveying device. The monitoring system comprises an imaging sensor and/or a depth sensing sensor for sensing a monitoring area of the passenger conveying device to acquire data frames; and a processing device for performing data processing on the data frames to monitor whether the monitoring area is abnormal, and configured to comprise: a background acquisition module for acquiring a background model based on data frames sensed when the monitoring area is in a normal state; a foreground detection module for comparing data frames sensed in real time with the background model to obtain a foreground object; a foreground feature extraction module for extracting a corresponding foreground object markup feature from the foreground object; and a state judgment module for judging whether the foreground object belongs to an abnormal population.

A human transport device such as an escalator or a moving walkway may include tread elements connected into an endless transport belt, a drive unit for driving the transport belt, and a monitoring apparatus for detecting a faulty arrangement of at least one of the tread elements in the transport belt. The tread elements of the driven transport belt may pass through a transport region and a return region between a first return station and a second return station. The monitoring apparatus may have a detection means and a triggering unit. The detection means may be arranged in a direction of a longitudinal extension of the human transport device below the tread elements of the transport region between the first and second return stations. The detection means may be connected to the triggering unit, and the triggering unit may actuate upon mechanical influence on the detection means.

An escalator system includes a pit having an access cover plate, a detector indicating when the access cover plate is open and when it is closed, and a user interface which is located in said pit and which in an active state provides the escalator system with control signals controlling the operation of the escalator and which in a passive state does not affect the operation of the escalator. In order to improve the safety of the escalator system the escalator system is configured to stop movement of the escalator if the detector indicates that the access cover plate is closed while the user interface is in the active state.

The present disclosure discloses a system and method for measuring safety clearance between the steps and skirt panels of an escalator and positioning hidden dangers and, which improves the working efficiency of the detecting personnel and reduces labor intensity; the system and method of the present disclosure has high accuracy, and eliminates the detection error caused by manual observation and the sense of responsibility, thus helping the detecting personnel to comprehensively detect the hidden dangers to minimize the escalator safety accidents caused by such hidden dangers; and its accurate hidden danger positioning function can help the maintenance personnel to carry out maintenance and adjustment faster. Therefore, the present disclosure is of great significance to the safe operation of the escalator and the personal safety of the passengers, and plays a positive role in promoting the development of the whole quality supervision.

A monitoring system for transport installations for persons, which installations are arranged as elevator, escalator or moving walkway, includes at least one interrogation device and at least one safety switch, which switch is connected with the interrogation device by an electrical safety circuit and which monitors a door lock of the transport installation for persons. An independent energy supply device supplies power to the interrogation device.

The present disclosure discloses a system and method for measuring safety clearance between the steps and skirt panels of an escalator and positioning hidden dangers and, which improves the working efficiency of the detecting personnel and reduces labor intensity; the system and method of the present disclosure has high accuracy, and eliminates the detection error caused by manual observation and the sense of responsibility, thus helping the detecting personnel to comprehensively detect the hidden dangers to minimize the escalator safety accidents caused by such hidden dangers; and its accurate hidden danger positioning function can help the maintenance personnel to carry out maintenance and adjustment faster. Therefore, the present disclosure is of great significance to the safe operation of the escalator and the personal safety of the passengers, and plays a positive role in promoting the development of the whole quality supervision.

An escalator system includes a pit having an access cover plate, a detector indicating when the access cover plate is open and when it is closed, and a user interface which is located in said pit and which in an active state provides the escalator system with control signals controlling the operation of the escalator and which in a passive state does not affect the operation of the escalator. In order to improve the safety of the escalator system the escalator system is configured to stop movement of the escalator if the detector indicates that the access cover plate is closed while the user interface is in the active state.

A sensor system for controlling operation of an escalator arranged on a landing plate at the exit of the escalator includes a plurality of sensors arranged over a landing area of the landing plate. Each sensor is disposed at predetermined intervals with respect to the width direction along the width between two balustrades and the length direction along the moving direction of the escalator, and is configured to detect a predetermined pressure so as to obtain a transition of ON/OFF states in response to a load presence.