226results about "Energy efficiency in elevators" patented technology

In addition to the construction of a typical elevator control device in which power generated during regenerative operation is dissipated by a resistance chopper (18), an elevator control device is newly provided with: an electric double layer capacitor (21) connected in parallel with the DC capacitor (3) that smoothes the DC ripple of the rectifier circuit (2) that rectifies the AC power of the AC power source (1) and having an electrostatic capacitance that is considerably larger than this DC capacitor; a voltage detection circuit (22) that detects the terminal voltage of this electric double layer capacitor; and a drive control unit (5) that uses a voltage in the vicinity of the rated voltage of the electric double layer capacitor as the operating voltage of resistance chopper and, when the terminal voltage detected by a voltage detection circuit reaches the voltage in the vicinity of the rated voltage of the electric double layer capacitor, operates and controls the resistance chopper.

A method and a system for responding to a service request sent to a transportation service, determining one or more alternatives as a transportation device for the user and selecting a personal transportation device. An automated transportation system according to the invention comprises: an elevator group comprising a plurality of elevators, a passenger terminal device for reserving elevators for use by passengers, an elevator group control system responsive to the passenger terminal device for controlling the elevators. The method of the invention comprises the steps of: entering a personal service request via the terminal device, determining on the basis of the service request at least one alternative as a transportation device for the user, and selecting via the terminal device one of the alternatives as the transportation device.

The invention belongs to the technical field of elevator group control, and relates to an elevator group control energy-saving scheduling method. The method comprises the following steps: (1) determining a traffic flow mode; (2) establishing a virtual simulation environment for elevator operation; (3) carrying out curve fitting on each data array respectively, and establishing the traffic flow mode, namely, an optimal energy-saving point knowledge base; (4) choosing the average elevator waiting time, congestion degree and energy consumption as objective functions of the multi-objective optimization problem study on an elevator group control system, and establishing an evaluation function; (5) generating elevator traffic flow information by simulation or collecting the actual traffic flow information; (6) determining the traffic flow mode, and searching the evaluation function parameters matched with the type of the traffic flow in a parameter library of the knowledge base as well as an evaluation function expected value matched with the traffic flow mode; and (7) solving a optimal elevator scheduling scheme by a discrete particle swarm optimization method. The proposed scheduling method can realize energy saving effectiveness in the elevator group control system.

The invention relates to a lift shaft capable of ventilating by wind power and a lift ventilating method. The lift shaft is provided with a new air pipeline and an air exhausting pipeline. A new air port is arranged corresponding to a position of a floor and the upper part of a lift car. When the lift runs, a lower exhaust blower stops running. A new air shutter in the lift car is started facing to wind based on the running direction. Air flow with ascending air supplying flow and descending air exhausting flow is formed in the internal part of the lift car, so that energy consumption is saved and respiratory tract infection of passengers and bad influence of odor are effectively prevented. The shortcomings that the lift shaft is damp and the lift car is stuffy are overcome. Therefore, the method disclosed by the invention can be widely applied to ventilation of lift shaft and lift car and the lift shaft can be manufactured in an industrial, standard, universal and serial manner. The invention belongs to the fields of buildings, building ventilation and lift manufacturing.

The present invention discloses a method for optimal routing of the elevators in an elevator system in a situation where the supply power received by the system is limited e.g. due to emergency power operation. In the invention, routes are optimized by using a cost function to which has been added a term containing the summed instantaneous power consumed. Power consumption is monitored in real time, and the elevators need a start permission from the control system. A route alternative that exceeds the power limit is penalized in the cost function by a so-called penal term. With the elevator routing obtained as a result, the instantaneous power consumed by the system remains continuously below the set power limit. Some call can thus be postponed to be served later. By the method of the invention, the number of elevators serving passengers in an emergency power situation can be varied dynamically.

The invention provides an elevator, wherein an electrical storage voltage control device (25) causes electric power charged into an electrical storage device (21) to be discharged to supply DC buses under the condition that a power failure detection device (26) detects power failure. Under the condition that the direction of the electric current detected by an electric current detection device (11) is the direction from a user electrical source (1) to a convertor device (2), namely, a power running direction, the electrical storage voltage control device (25) is judged as at power running to cause the electric power charged into the electrical storage device (21) to be discharged to supply the DC buses. On the other hand, under the condition that the direction of the electric current detected by the electric current detection device (11) is the direction from the convertor device (2) to the user electrical source (1), namely, a regenerating direction, the electrical storage voltage control device (25) is judged as at regenerating running to charge the electrical storage device (21) to regenerate the electric power.

The battery counterweighted elevator is adapted for rack and pinion or cable traction elevators. The elevator uses electrical power from a solar cell array to charge or recharge storage batteries, which, in turn, provide the electrical power to drive the elevator. The storage batteries serve as counterweights for at least a substantial portion of the weight of the elevator car, and travel up and down opposite the car. A traveling cable connects the elevator car with the batteries in the counterweight in the case of the rack and pinion elevator, with the cable providing power to the drive motor situated with the car and also providing control of the system from the car. The cable traction elevator has a traveling control cable extending to a fixed junction box, with power supplied from the batteries to the junction box and thence to the fixed motor at the top of the hoistway.

The invention relates to the field of elevators, aims to provide a method for saving energy, lowering consumption and particularly solving the problem of high energy consumption during operation rush time of elevators. The technical scheme adopted by the invention is as follows: a cluster control dispatching method of energy-saving elevators in dynamic subareas during rush time is realized by means of a cluster controller and comprises the following steps of: acquiring the current positions and operation directions of all the elevators by the cluster controller, acquiring all information of passengers inside and outside the current lift car by using a destination floor registration plate, and carrying out rolling dynamic optimization on service floor subareas of all the elevator accordingto a system energy consumption minimizing rule; during dynamic optimization, calculating the total system energy consumption of the current subarea, the total system energy consumption of an ascending subarea and the total system energy consumption of a descending subarea by using the cluster controller, comparing the three kinds of energy consumption, and carrying out dynamic subarea adjustment on all the subareas in an energy consumption minimum positioning way, so that the energy-saving optimization of cluster control dispatching during rush time is realized. The method is mainly applied to elevator dispatching control occasions.

A method of controlling an elevator installation with several elevators, in which destination call inputs of passengers are input by destination call input apparatus and in which at least one traffic criterion, which characterizes a traffic intensity, of the elevator installation is measured by an elevator control, wherein the elevator control allocates cost-optimizing elevators to the destination call inputs. In order to obtain an energy saving without prejudicing the transport capacity of the elevator installation, the elevator control additionally allocates energy-optimizing elevators to the destination call inputs in dependence on the traffic criterion.

The present invention relates to an elevator, which is characterized in that it has a cage call registration device, an elevator control device (3) for controlling the elevator apparatus containing the cage call registration device, and a power supply control section (9) for maintaining the power supply to the call registration device of the elevator apparatus and cutting off the power supply to other devices when the running status is at a valley state.

Energy saving methods and apparatus for elevator systems having a plurality of elevator cars operating in a plurality of elevator shafts are disclosed. The present invention provides methods and apparatus for determining which one of the plurality of elevator cars is to be assigned to a new hall call in order to reduce the net energy consumption of the elevator system over time.

The invention relates to a cluster controller of elevators, comprising an ARM microprocessor, an external periphery device, a CAN bus communication module and an Ethernet communication module, wherein the ARM microprocessor is responsible for the real-time dynamic distribution of the call-out sequence of the elevator group control network in multithread way, and the transmission of the state information of each single elevator of the elevator group control network to the remote monitor server. The CAN bus communication module is used to receive the state information and the calling elevator information, and transmit the real-time group control result to the single-elevator controller to achieve the group control of the elevators. The Ethernet communication module is used to connect the cluster controller with the outer monitor workstation, and transmit the operation status information and the failure information of each elevator under the group control status to the monitor workstation. The invention meanwhile provides a method of elevator group control. The cluster controller of elevators has the advantages of guaranteeing the continuity and stability of the operation of the dispatch algorithm of the elevator group control, short response time of the elevator group control, better operation stability, energy saving and cost saving.

The invention relates to a microcomputer controlled and storage battery driven high-rise building fire high-speed escape elevator which comprises an evacuation escape elevator hall arranged in each unit or each house on each floor of a high-rise building, a high-speed escape elevator host configured in each evacuation escape elevator hall with the power supplied by a storage battery, a controller respectively arranged in the evacuation escape elevator hall and the high-speed escape elevator host with the power supplied by the storage battery; and in case of fire, the controller is operated, the high-speed escape elevator host carrying escapers is moved out of the high-rise building wall from the evacuation escape elevator hall, and is lowered onto the ground at high speed. The microcomputer controlled and storage battery driven high-rise building fire high-speed escape elevator has the advantages of safety, quickness, no restriction by the floor height and easy operation, and is convenient for the crew in the high-rise building to quickly escape immediately.

An elevator drive assembly (20) includes a motor (28), drive (32) and a capacitive energy storage device (50). In a disclosed example, the capacitive energy storage device (50) comprises at least one nano-gate capacitor (52). The disclosed example has unique energy storage capabilities provided by the presence of the at least one nano-gate capacitor.