Abstract: An elevator control apparatus solves a major problem with a conventional elevator control apparatus in that a state of charge of a battery is not always maintained at 100% because of the need for securing an allowance for charging regenerative electric power, causing generation of an inert material in the battery with a resultant decrease in an apparent charging capacity of the battery and a shortened life of the battery.

Abstract: This invention provides a controller of an elevator capable of performing smooth speed control by using a cheap power accumulating device of a low capacity even at a power failure time.

Abstract: This invention provides a controller of an elevator for stably controlling regenerated power by using a cheap secondary battery of a low capacity without damaging energy saving effects obtained by charging.

Abstract: An elevator control apparatus solves a problem in that charging and discharging characteristics of a battery used for a power storage unit changes with temperatures, and charging all regenerative electric power of the elevator may cause a sudden rise in the temperature of the battery especially at a low temperature, and a gas may be generated in the battery, leading to significant deterioration of the battery. The elevator control apparatus includes: a converter; an inverter; a controller for controlling a motor based on the AC power of a variable voltage and a variable frequency supplied from the inverter so as to operate an elevator; a power storage unit for storing the DC power; a thermistor for detecting a temperature of the power storage unit; a charge/discharge control circuit for controlling a charging and discharging electric energy based on the detected temperature and issuing a drive signal; and a charge/discharge circuit for charging and discharging the power storage unit based on the drive signal.

Abstract: This invention provides a controller of an elevator capable of performing stable speed control by using a cheap power accumulating device of a low capacity even at a discharging control time. Therefore, the controller has a converter 2, an inverter 4, a power accumulating device 11 arranged between DC buses 3, a charging-discharging control circuit 15 for controlling charging and discharging operations of the power accumulating device, a power failure detector 22, a current measuring instrument 23 and a voltage measuring instrument 24 for respectively detecting an output current and an output voltage of the inverter, a car load measuring instrument 25, an encoder 20, and a speed control circuit 21A for controlling an operation of the inverter. The speed control circuit 21A calculates output power of the inverter, and calculates discharging ability power of the power accumulating device on the basis of a measuring value of charging and discharging states.

Abstract: This invention provides a controller of an elevator for reducing the number of execution times of uniform charging of a power accumulating device and having higher energy saving effects. Therefore, the controller has a converter 2, an inverter 4, a power accumulating device 11 arranged between DC buses 3, a charging-discharging control circuit 15A for controlling charging and discharging operations of the power accumulating device, and a charging-discharging state measuring device 14A for measuring at least one of a temperature, charging and discharging currents, and charging and discharging voltages of the power accumulating device. The charging-discharging control circuit 15A sets the execution of uniform charging of the power accumulating device on the basis of an output of the charging-discharging state measuring device, and executes only the required uniform charging. Thus, an elevator with the power accumulating device having larger energy saving effects is constructed.

Abstract: An elevator control apparatus solves a problem in that electric power produced in a regenerative mode of an elevator is thermally consumed by a regenerative resistor or the like rather than being effectively used.

Abstract: This invention provides a controller of an elevator in which a space for mounting a power accumulating device can be saved and the controller can be applied to the elevator having no machine room. Therefore, the controller has power accumulating means arranged between DC buses between a converter and an inverter, and accumulating DC power from the DC buses at a regenerative operation time of the elevator and supplying the DC power accumulated on the DC buses at a power running operation time; and charging-discharging control means for controlling charging and discharging operations of the power accumulating means with respect to the DC buses. The power accumulating means is constructed by a secondary battery and a DC-DC converter for controlling charging and discharging operations of the secondary battery, and the secondary battery is constructed by connecting plural cells in series to each other.

Abstract: An elevator control apparatus solves a major problem with a conventional elevator control apparatus in that an elevator cannot be operated in case of a power failure of a commercial power source because the controlling apparatus constantly consumes power supplied from the commercial power source. The elevator control apparatus includes: a power storage unit for storing the DC power; a charge/discharge control circuit that controls a state of charge of the power storage unit, outputs a drive signal to charge the power storage unit with the DC power during a halt of the elevator based on operational information regarding the elevator received from the controller, and outputs a stop signal to stop charging when a voltage of the power storage unit reaches a preset predetermined voltage; and a charge/discharge circuit for starting charging the power storage unit with the DC power in response to the drive signal, and stopping the charging in response to the stop signal.

Abstract: This invention provides a controller of an elevator for stably controlling charging and discharging operations of a power accumulating device by using a cheap secondary battery of a low capacity, without damaging energy saving effects obtained by charging.

Abstract: An elevator control device includes: a convertor which rectifies an a.c. power and converts the a.c. power into a d.c. power; an inverter which converts the d.c. power into an a.c. power having a variable voltage and a variable frequency; an electric motor which is driven by the a.c. power having a variable voltage and a variable frequency to drive an elevator; a power storing unit which is charged with an electric power; a required-power arithmetically operating circuit which calculates a required power of the elevator which is an electric power required for the operation of the elevator or an electric power caused by the operation of the elevator; and a charging/discharging control circuit which controls the charging operation or the discharging operation of the power storing unit based on the required power of the elevator.

Abstract: To reduce a total power amount required to drive an elevator by a commercial power supply during a peak power-consumption time period, for instance, afternoon in summer time, a control apparatus for this elevator is arranged by employing: a converter for rectifying AC electric power to be converted into DC electric power; and inverter for inverting the DC electric power into AC electric power having a variable voltage and a variable frequency; a motor driven by said AC electric power having the variable voltage and the variable frequency so as to operate an elevator; a power storage apparatus for charging thereinto electric power; and charge/discharge control means for controlling charging/discharging operation with respect to the power storage apparatus based upon a charging target value every time with respect to the power storage apparatus.

Abstract: To reduce a total power amount required to drive an elevator by a commercial power supply during a peak power-consumption time period, for instance, afternoon in summer time, a control apparatus for this elevator is arranged by employing: a converter for rectifying AC electric power to be converted into DC electric power; and inverter for inverting the DC electric power into AC electric power having a variable voltage and a variable frequency; a motor driven by said AC electric power having the variable voltage and the variable frequency so as to operate an elevator; a power storage apparatus for charging thereinto electric power; and a power controller for using both the power storage apparatus and the commercial power supply so as to supply the electric power to the inverter, and for controlling at least any one of the power storage apparatus and the commercial power supply in order to supply electric power which is required for the inverter.

Abstract: The present invention prepares a rule base for storing therein a plurality of control rule sets, predicts a group management performance such as a waiting time distribution which is obtained when applying an arbitrary rule set stored in the rule base to the current traffic situation, and selects the optimal rule set in accordance with the performance prediction result. In addition, a weight database for storing therein weight parameters of a neural net corresponding to the rule sets and performance learning measure for correcting the weight parameters in the weight database in accordance with the learning result of the neural net is provided, whereby the prediction of the group management performance by the neural net using the corrected weight parameters is carried out.

Abstract: A robot control apparatus including a first coordinate transformation unit for transforming an output from a setting unit for setting moving positions of a robot into information in a predetermined general coordinate system. A selector changes the destinations of output information from the first coordinate transformation unit dependent on the type of robot being controlled. A second coordinate transformation unit is provided having a plurality of transformation sections for transforming outputs in the general coordinate system from the first cooridnate transformation unit into information in a coordinate system inherent to the particular robot. The output from the first coordinate transformation unit is applied to one of the transformation sections which is selected by the selector. Robot drive signals are produced in response to output information from the second coordinate transformation unit.

Abstract: A computer control system for a controlled apparatus such as an elevator executes operation with a plurality of standard programs corresponding to the conventional standard elevator relay circuits, the plurality of standard programs being stored in a ROM (Read Only Memory) device.The computer control system is equipped with a special program corresponding to at least one of the plurality of standard programs, and the special program is stored in a ROM device. If the elevator is to operate in a standard mode, the computer control system operates using only the standard ROM devices. If the elevator is to operate in a modified mode, the computer control system operates using the standard ROMs together with the special ROM, a control signal corresponding to this special ROM device being employed as a valid control signal. In both modes of operation, the standard program is not modified.

Abstract: An elevator control system includes an ROM device having control data common to all elevator cars stored therein, and a setting device having a plurality of switches which are selectively closed and opened to designate the ordinal binary numbers of floors of a building served by an associated elevator car. When the building has many floors, the setting device may similarly designate the ordinal binary number of the lower ten floors and those of the remaining floors are additionally stored in the ROM device.

Abstract: A control device for an elevator system in which an operating program for the elevator can readily be changed by the addition of a read-only memory containing only instructions needed for modifying control signals computed by a standard program. To the standard computerized control device of an elevator system is added a further read-only memory and a further random access memory. The read-only memory stores programs which modify the computational results produced as a result of executing the standard programs. The computational results produced by executing the standard programs are stored in the added random access memory, there modified as a result of executing the special program stored in the added read-only memory, and then transferred to another random access memory for transfer to the devices which perform the direct control of the elevator cage of the system.

Abstract: An apparatus for operating during earthquake which should be stopped to prevent an accident by detecting earthquake is provided. The apparatus detects an initial slight earthquake shock to perform a preliminary operation for earthquake by a first control device. When higher vibration is not detected within a specific time, the apparatus is reset. When high vibration is detected, an operation for earthquake including the stop of the apparatus is performed by a second control device.

Abstract: A wire rope is formed by twisting two different metal wires which vary from each other by at least 50% in their loss factors. The two different metal wires are combined in two embodiments: first, wires of steel material and wires of titanium containing material, or secondly, wires of a steel material and wires of chromium stainless steel material. In a preferred embodiment, a wire rope is formed by twisting a plurality of strands around a center core and two different metal wires as described above are employed to form the strands.