4609results about "Escalators" patented technology

The invention discloses a system and a method for monitoring state of an escalator. The system comprises a signal sensing sub system, a data acquisition sub system and a monitoring and diagnosing main system, wherein the signal sensing sub system is used for obtaining state information, in an operation process, of the escalator; the data acquisition sub system is used for acquiring and obtaining corresponding original state information after pre-processing the obtained state information, and storing the original state information; and the monitoring and diagnosing main system is used for carrying out online monitoring, early-warning and alarm processing after carrying out analysis and feature extraction on the original state information to obtain a real-time state feature vector, and carrying out self-learning type intelligent diagnosing and fault predicating on the state feature vector by combining with historical fault data and/or expert knowledge base. The system can be used for realizing comprehensive online monitoring of the escalator, can be used for accurately carrying out intelligent diagnosing and fault predicating, and can be widely applied to the monitoring industry of the escalators, moving sidewalks and elevators.

This invention provides an improved handrail construction for escalators and moving walkways that enables the handrail to be advance by positive drive forces so as to reduce the amount of stress on the handrail structure and to improve the durability of escalator handrail systems. The handrail includes teeth for engaging a drive mechanism, the teeth preferably being formed in the body of the handrail.

A transfer device includes an upper mechanism and a lower mechanism associated with the upper mechanism. The upper mechanism includes a first endless belt that circulates in forward and reverse directions. The lower mechanism includes a second endless belt that circulates in forward and reverse directions independently of the first endless belt. The first and the second endless belts are selectively brought into and out of engagement with each other.

The present invention discloses and teaches method and apparatus for the detection of a disengaged, moving, handrail on a people moving walkway particularly an escalator. By the present invention a proximity sensor is positioned beneath the handrail for detection of a handrail that has become disengaged from its underlying guide rail. Upon detection of a disengaged handrail, the proximity sensor sends an electrical signal to a controller which stops the escalator or walkway.

A method and system to mitigate at least one threat associated with a building includes receiving at least one threat parameter of the at least one threat via at least one threat sensor, and actively controlling at least one threat mitigator in response to the at least one threat parameter via a threat controller.

The invention discloses an energy-saving control system for a permanent magnet synchronous escalator. The main loop is that: each phase of a three-phase power supply is connected with two groups of pulse width modulation controllers in star connection through an inductor and a resistor in sequence, wherein the central points of each group of pulse width modulation controllers are a positive electrode output end and a negative electrode output end respectively; and a capacitor is in bridge connection with the positive electrode output end and the negative electrode output end; the control circuit is that: a voltage signal and a current signal of each phase are sampled from each phase of the three-phase power supply and connected with a microprocessor through a shaping and isolating circuit; the voltage output from the positive electrode output end and the negative electrode output end is connected with the microprocessor through an isolating circuit; the three-phase pulse width modulation output of the microprocessor is connected with each pulse width modulation controller through a driver and an isolator respectively; and the microprocessor is connected with a failure protection circuit, a keyboard and a display and communication interface circuit. The energy-saving control system has the most important characteristic of energy conservation, so the average energy conservation of the escalator reaches over 40 percent, the average energy consumption is 50 percent of that during single-speed operation, the mechanical wearing is reduced, and the service life of the parts and the entire machine is prolonged.

A drive system for escalators having steps or moving walkways having pallets includes at least one drive motor. A drive chain is driven by the drive motor and is comprised of a plate link chain. The drive chain has such a pitch that a maximum of two links are used for each step or pallet. A mechanism for minimizing a polygon effect which occurs during entry and reversing of the chain at a reversing element includes at least one device for actuating one of the drive motor, the reversing elements or the drive chain with a non-constant rotational speed or velocity.

A drive control system for conveyor utilizes a dynamic chain pull calculation program that is integrated with a PLC, which communicates to a plurality of controllers. The controllers in turn automatically adjust their associated drive motors so as to maximize efficiency at moving material on a conveyor system. Sensing devices provide continuous load parameters to a PLC that in turn, processes the data and adjusts the system's operation based upon desired conditions.

A handrail sanitization system incorporates ultraviolet light treatment into long straight sections of the handrail run, most preferably along the hidden return area of the endless loop forming the moving handrail. This treatment area allows for longer exposure times to the UV light and facilitates the treatment of the entire outer surface of the handrail. In some versions, an additional dosage controller is provided.

A method and a device for maintenance of an elevator or escalator installation includes an interface for connection of a controller of the installation with a display and control unit for display of operating parameters or for input of control commands and data, and connection equipment for creating a data connection with a maintenance center. Data and parameters stored in the maintenance center can be transferred to the display and control unit by the data connection after an identification check. A fault log with component designations, which is transferred by the data connection from the display and control unit to the maintenance center, can be produced in dependence on a comparison between operating parameters and transferred data and parameters.

The invention discloses an embedded computer vision escalator pedestrian flow supervision and alarm device, which performs supervision and alarm on the pedestrian flow of an escalator so as to ensure the safety of passengers on the escalator. The technical scheme is that the device comprises the following components: an image acquisition device for taking images at the escalator; an embedded computer vision escalator pedestrian flow supervision and alarm system which comprises a computer vision monitoring module comprising an image acquisition submodule, a storage submodule, an analysis submodule, a comparison engine, an alarm operation module, an alarming apparatus, wherein the image acquisition submodule is used for acquiring the images of the passengers on the escalator; the storage submodule is provided with a visual video storage database inside for storing the acquired videos; the analysis submodule is used for analyzing the acquired images; the comparison engine is used for comparing an analysis value with a preset safety range; the alarm operation module is used for sending alarm signals to the passengers according to the obtained abnormal behavior conclusion; and the alarming apparatus is used for performing caution actions. The escalator pedestrian flow supervision and alarm device is applied in the field of escalator safety supervision devices.

A control system for a passenger conveyor includes a ready-to-operate mode, a standby speed and a nominal speed. A method to operate the passenger conveyor includes the steps of: transitioning the conveyor from ready-to-operate mode to nominal speed using a frequency converter; switching from frequency converter to line power at nominal speed; switching back to frequency converter if no passengers are present and transitioning from nominal to standby speed; and transitioning from standby speed to ready-to-operate mode if a predetermined amount of time passes without a passenger entering the conveyor.

A load limiting device for a jib extension includes a pivotal insert adjacent the tip of the jib extension, a cable sheave mounted on the insert, a force measuring device for measuring forces imposed upon the insert by a load on the cable, an angle transducer for measuring the angle of orientation, and means for determining, based upon such force and angle of orientation, the load on the jib extension.

The invention provides an escalator safety device which is adapted for all escalators and has high detection precision to abnormal conditions. The escalator safety device of present invention comprises a plurality of photoelectric sensors (111) arranged along traveling direction of the escalator (1); a pattern generator (112) of shading patterns which uses existence or nonexistence of shading of each position of the escalator generated by determining a plurality of sensor output values with certain sampling interval as time series; a passenger state estimation part (120) for outputting walking estimation result (123a), crowding degree estimation result (125a) or fall down sate estimation result (126a) of passengers according to the shading patterns; a warning part (113) for warning passengers according to the estimation result; and a controller (114) for controlling operation of the escalator according to the estimation result.

An escalator step riser is improved by adding grooves to the cleat surfaces, and, at the same time, a skid-inhibiting function is realized at the rear edge of the step. For escalator step (1), cleats (5a) are formed with a pitch twice that of tread (4) on riser (3). On each cleat (5a) of the riser (3), one or more grooves (6) are formed in the longitudinal direction. In addition, skid-inhibiting surface (7), made of synthetic resin and having a prescribed width, is attached in a quick connecting/disconnecting manner on the rear edge of step (2). A serrated irregular portion (7c) is formed on the upper surface of cleats (7a), (7b) of the non-slip surface (7).

A guard device for a handrail in an entry zone of an escalator is disclosed, which assures safety of an entry of the escalator, sanitary maintenance of the handrail by sterilization, efficient advertisement of products and business corporations, and clean maintenance of air in the entry of the escalator. The guard device includes a guide channel at its bottom to receive a part of the handrail. The guard device further includes a sterilization unit to sterilize the handrail, an advertising display provided on a front face thereof, and an air-cleaning unit provided at a side wall thereof.

In an escalator or travelator configured to travel in two directions and including a step or pallet belt returned in first and second return portions facing away from each other, a monitoring device and method for detecting steps or pallets of the step or pallet belt is provided. The device includes a first detector configured to detect the steps or pallets in one of the directions of travel, a second detector configured to detect the steps or pallets in the other direction of travel, and an electronic analyzer/controller functionally coupled with each of the first and second detectors. The electronic analyzer/controller is configured to receive and compare signals from the first and second detectors for the two directions of travel and derive therefrom a signal for halting the escalator or travelator. When the signals from at least one of the first and second detectors indicates a missing step or pallet within the step or pallet belt, the electronic analyzer/controller outputs the derived signal to halt a drive of the escalator or travelator.

The present invention provides an escalator monitoring system which is provided with at least two shooting devices (22a, 22b) at a place where the body of the escalator (11) can be monitored. Each image which is shot through the shooting devices (22a, 22b) is transmitted to an image processor (24). In the image processor (24), the three-dimensional information is obtained according to each image.The three-dimensional information is analyzed. The position of a passenger (10) who uses the escalator (11) is detected, wherein the position comprises the depth direction of the shooting range, and simultaneously, the motion of the passenger (10) is detected based on the operation information of escalator (11).

An illumination system for an escalator handrail has a rechargeable power source and a light source. The rechargeable power source is recharged by a charging circuit which receives power from one or more magnetically coupled charging stations. The light source emits light into an optic fiber or another light carrying and dispersing element. The optic fiber is selected to disperse light from its sides and thereby appears to be illuminated.

The invention discloses a system for an escalator and an automatic moving pavement, which comprises all safety switches for detecting deletion of steps, chain fracture of chains, strap breakage of hand straps, skirt panels and the like, an escalator main control device, a plurality of auxiliary control devices and communication buses for connecting all the control devices, wherein a group of contacts of all safety switches is connected with the escalator main control device, when any one safety switch is turned off, the power supply of an escalator driving device is cut off so as to ensure safety. Another group of contacts of the safety switches is connected with the auxiliary control devices for detecting the state of the safety switches. Each auxiliary control device is connected with the main control device through the buses for carrying out data communication. The invention is capable of conveniently carrying out failure detection and control, is easy for system expansion and has low manufacturing cost.

A guard device (1) comprising a deflector (8) for guarding the gap between an escalator step and an escalator side wall. The guard device (1) comprises an elongate body portion (2) having an elongate recess (4) adapted to receive a base of a deflector (8) with some play. A mouth (6) of the recess (4) is sufficiently wide to allow the base of the deflector (8) to be inserted through it into the recess (4). An elongate wedging element (10) is adapted to be slid into an end of the recess (4) between the end of the deflector (8) and a side wall of the body portion (2), thereby taking up the said play and retaining the deflector (8) in the body portion (2).

A modular belt having plug-inserts produced from electroconductive material. The plugs may be snapped into respective holes that are preformed or machined in a standard plastic belt module. The modules may be produced from low cost materials such as polypropylene or polyacetal. The electroconductive plugs may be attached to the belt in numerous ways including, but not limited to, snap fit, gluing, screwing or direct integration by molding.