JP2013052990A - Elevator monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator monitoring device enabling an observer to easily confirm the amount of the saved power of an elevator device using regenerative electric power.SOLUTION: The elevator monitoring device monitors the elevator device including a winding drum type winding machine having a motor where a state is switched into a power feeding state and a regenerative state; a power storage device feeding power when the state of the motor is in the power feeding state, and receiving power generated in the motor when the state of the motor is in the regenerative state, and a car liftable in conjunction with the drive of the motor. Moreover, the elevator monitoring device includes a power detection device detecting power supplied from the power storage device to the motor, and a power amount display device displaying a power amount supplied from the power storage device to the motor based on a detection result by the power detection device.

Description

  The present invention relates to an elevator monitoring apparatus that monitors an elevator apparatus.

  2. Description of the Related Art Conventionally, an elevator monitoring device that acquires position information indicating the position of a car from an elevator apparatus and displays the position of the car based on the acquired position information is known (see, for example, Patent Document 1).

JP-A-10-231068

  However, the elevator monitoring device cannot display the power saving amount of the elevator device by using the regenerative power when the elevator device moves the car using the regenerative power generated in the motor of the hoisting machine. . Therefore, the supervisor who monitors an elevator apparatus using an elevator monitoring apparatus had the problem that the power saving amount of the elevator apparatus by utilizing regenerated electric power could not be confirmed.

  The present invention provides an elevator monitoring apparatus in which a supervisor can easily confirm the power saving amount of the elevator apparatus by using regenerative power.

  The elevator monitoring device according to the present invention, a winding drum type hoisting machine having a motor whose state is switched between a power running state and a regenerative state, and when the state of the motor is the power running state, sends power to the motor, An elevator monitoring device that monitors an electric storage device to which electric power generated in the motor is sent when the motor is in the regenerative state, and an elevator device that includes an elevator that moves up and down in conjunction with driving of the motor. A power detection device that detects power sent from the power storage device to the motor, and a power amount display device that displays power amount sent from the power storage device to the motor based on a detection result of the power detection device. It has.

  According to the elevator monitoring apparatus according to the present invention, a hoisting type hoisting machine having a motor whose state is switched between a power running state and a regenerative state, and when the motor is in a power running state, power is sent to the motor. An elevator monitoring device that monitors an electric storage device to which electric power generated in the motor is sent when the state of the motor is in a regenerative state and an elevator device that includes a car that moves up and down in conjunction with driving of the motor, from the electric storage device Since it includes a power detection device that detects power sent to the motor and a power amount display device that displays the amount of power sent from the power storage device to the motor based on the detection result of the power detection device, the power amount display device Displays the amount of power sent to the motor from the power storage device that stores the power generated in the motor. Thereby, the power saving amount of the elevator device by using the regenerative power is displayed on the power amount display device. As a result, the supervisor can easily confirm the power saving amount of the elevator apparatus by using the regenerative power.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the elevator system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the display apparatus of FIG. It is a flowchart which shows operation | movement of the elevator monitoring apparatus of FIG. It is a flowchart which shows operation | movement of the power saving amount display apparatus of FIG.

Embodiment 1 FIG.
1 is a block diagram showing an elevator system according to Embodiment 1 of the present invention. In the figure, a car 1 on which a passenger gets on and off is provided in a hoistway (not shown) so as to be able to go up and down. A rope 2 extending upward from the top of the car 1 is provided at the top of the car 1. The upper portion of the rope 2 is wound around a winding drum type hoisting machine 3 having a motor 31. The motor 31 is configured to switch between a power running state and a regenerative state. The power running state is a state in which the car 1 is raised by supplying electric power to the motor 31. The regenerative state is a state in which electric power is generated using an electromotive force generated in the motor 31 when the car 1 descends. The car 1 moves up and down in conjunction with the drive of the motor 31.

The motor 31 is provided with an encoder device 4 that detects the rotational position ω _s of the motor 31. Information on the rotational position ω _s of the motor 31 detected by the encoder device 4 is sent to the control device 5. The control device 5 detects the position of the car 1 based on the information on the rotational position ω _s sent from the encoder device 4. Further, the control device 5 determines whether the car 1 is rising or whether the car 1 is falling based on the information on the rotational position ω _s sent from the encoder device 4. The control device 5 controls the drive of the motor 31.

  A power transmission device 6 is electrically connected to the winding drum type hoisting machine 3. A power storage device 7 and a solar cell 8 are electrically connected to the power transmission device 6. When the state of the motor 31 is the power running state, the power of the power storage device 7 and the power of the solar cell 8 are sent to the motor 31 via the power transmission device 6. When the state of the motor 31 is the regenerative state, the electric power generated in the motor 31 is sent to the power storage device 7 via the power transmission device 6. When power is sent from the power storage device 7 and the solar battery 8 to the motor 31, the power transmission device 6 converts the power from direct current to alternating current. In addition, when power is sent from the motor 31 to the power storage device 7, the power transmission device 6 converts the power from alternating current to direct current.

  A charge state detection device 9 is electrically connected to the power storage device 7. The charging state detection device 9 detects the charging state of the power storage device 7. Examples of the state of charge of the power storage device 7 detected by the state of charge detection device 9 include a normal state, a state of insufficient charge, a fully charged state, and an overcharged state. The normal state means that the amount of power stored in the power storage device 7 is larger than the minimum amount of power that can raise and lower the car 1 and is stored in the power storage device 7 in a fully charged state. Less state. The insufficient charge state is a state in which the amount of power stored in the power storage device 7 is less than the minimum amount of power that can move the car 1 up and down. Information on the state of charge of the power storage device 7 detected by the state of charge detection device 9 is sent to the control device 5.

  In addition, a charging device 10 is electrically connected to the power storage device 7. An AC power supply device (external power supply device) 11 is electrically connected to the charging device 10. The power of the AC power supply device 11 is sent to the power storage device 7 through the charging device 10. Charging device 10 has an open / close switch 101 that opens and closes a circuit of power from AC power supply device 11 to power storage device 7, and a converter 102 that converts power sent from AC power supply device 11 to power storage device 7 from AC to DC. doing. Open / close switch 101 is displaced between an ON position where power from AC power supply device 11 is sent to power storage device 7 and an OFF position where power transmission from AC power supply device 11 to power storage device 7 is interrupted. Although connection lines are not shown in FIG. 1, the opening / closing operation of the opening / closing switch 101 is controlled by the control device 5.

  When the state of charge of the power storage device 7 is an insufficient charge state and the power generated in the motor 31 and the power of the solar cell 8 are not sent to the power storage device 7, the control device 5 turns on the position of the open / close switch 101. In the position, the power storage device 7 is charged by the electric power of the AC power supply device 11. In addition, after the power of the motor 31 or the power of the solar battery 8 is sent to the power storage device 7 after the position of the opening / closing switch 101 is set to the ON position, the control device 5 sets the position of the opening / closing switch 101 to the OFF position. .

  A solar cell power changeover switch 12 is provided between the power transmission device 6 and the power storage device 7 and the solar cell 8. The solar battery power changeover switch 12 is electrically connected to the AC power supply device 11 via the power conditioner device 13. The solar cell power change-over switch 12 has a contact 121 on the solar cell 8 side, a contact 122 on the power transmission device 6 and power storage device 7 side, and a contact 123 on the power conditioner device 13 side. The solar cell power changeover switch 12 is displaced between a normal position where the contact 121 and the contact 122 are conducted and a discharge position where the contact 121 and the contact 123 are conducted. When the contact 121 and the contact 122 are conducted, the contact 121 and the contact 123 are not conducted. When the contact 121 and the contact 123 are conducted, the contact 121 and the contact 122 are not conducted. When the position of the solar battery power switch 12 is the normal position, the power of the solar battery 8 is sent to the power storage device 7 and also sent to the motor 31 via the power transmission device 6. When the position of the solar battery power changeover switch 12 is the discharge position, the power of the solar battery 8 is sent to the AC power supply device 11 via the power conditioner device 13. Although the connection line is not shown in FIG. 1, the switching operation of the solar cell power selector switch 12 is controlled by the control device 5.

  A motor power changeover switch 14 is provided between the power transmission device 6 and the power storage device 7. The motor power changeover switch 14 is electrically connected to the power conditioner device 13 via the solar battery power changeover switch 12. The motor power changeover switch 14 includes a contact 141 on the power storage device 7 side, a contact 142 on the power transmission device 6 side, and a contact 143 on the power conditioner device 13 side. The motor power changeover switch 14 is displaced between a normal position where the contact 141 and the contact 142 are conducted and a discharge position where the contact 142 and the contact 143 are conducted. When the contact 141 and the contact 142 are conducted, the contact 142 and the contact 143 are not conducted. When the contact 142 and the contact 143 are conducted, the contact 141 and the contact 142 are not conducted. When the position of the motor power changeover switch 14 is the normal position, power is transmitted and received between the power transmission device 6 and the power storage device 7. When the position of the motor power switch 14 is the discharge position, the power generated in the motor 31 is sent to the AC power supply device 11 via the power conditioner device 13. Although the connection line is not shown in FIG. 1, the switching operation of the motor power changeover switch 14 is controlled by the control device 5.

  Control device 5 displaces solar battery power selector switch 12 to the discharge position and further displaces motor power selector switch 14 to the discharge position when the state of charge of power storage device 7 is a fully charged state. In addition, when the charging state of the power storage device 7 is normal or undercharged, the control device 5 displaces the solar battery power switch 12 to the normal position, and further sets the motor power switch 14 to the normal position. Displace.

  A diode 15 is provided between the solar cell 8 and the contact 121 to prevent current from flowing from the contact 121 toward the solar cell 8. The diode 15 prevents power generated in the motor 31 from flowing into the solar cell 8.

  A diode 16 is provided between the contact 123 and the contact 143 to prevent a current from flowing from the contact 123 toward the contact 143. The diode 16 prevents the power of the AC power supply device 11 from flowing to the power transmission device 6 via the power conditioner device 13.

  The electric power generated in the solar cell 8 is sent to an operation device 17 including a car operation panel and a hall operation panel. Between the solar cell 8 and the operation device 17, a diode 18 that prevents current from flowing from the operation device 17 toward the solar cell 8 is provided.

  The solar cell 8 has a voltage detection device 81 that detects the voltage of power generated by the solar cell 8. The solar cell 8 supplies electric power when the voltage value of the electric power generated in the solar cell 8 exceeds a predetermined voltage value. Although connection lines are not shown in FIG. 1, information on the voltage value of the solar cell 8 detected by the voltage detection device 81 is sent to the control device 5.

  The elevator device includes a car 1, a rope 2, a winding drum type hoisting machine 3, an encoder device 4, a control device 5, a power transmission device 6, a power storage device 7, a solar cell 8, a charging state detection device 9, a charging device 10, and an AC power supply. The apparatus 11 includes a solar battery power changeover switch 12, a power conditioner device 13, a motor power changeover switch 14, a diode 15, a diode 16, an operating device 17, and a diode 18.

  The elevator monitoring device that monitors the elevator device includes a power detection device 19 that detects the power sent from the power storage device 7 to the motor 31 and the power sent from the solar cell 8 to the motor 31, and the motor 31 from the power storage device 7 and the solar cell 8. A power amount calculation device 20 that calculates the amount of power sent to the power source, a determination device 21 that determines whether or not the power amount sent from the power storage device 7 and the solar battery 8 to the motor 31 has reached the target power amount, and an elevator apparatus And a display device 22 for displaying the state.

  The detection result of the power detection device 19 is sent to the power amount calculation device 20. The power amount calculation device 20 integrates the detection results of the power detection device 19 and calculates the amount of power sent from the power storage device 7 and the solar battery 8 to the motor 31.

  The calculation result of the electric energy calculation device 20 is sent to the determination device 21 and the display device 22. The determination device 21 compares the calculation result of the power amount calculation device 20 with a preset target power amount. When the power amount calculated by the power amount calculation device 20 is larger than the target power amount, the determination device 21 sends an achievement signal indicating that the target has been achieved to the display device 22. In addition, when the power amount calculated by the power amount calculation device 20 has not reached the target power amount, the determination device 21 sends an unachieved signal indicating that the target has not been achieved to the display device 22.

  The display device 22 is electrically connected to the control device 5. FIG. 2 is a block diagram showing the display device 22 of FIG. The display device 22 includes an operation display device 221 that displays the position of the car 1, an energy flow display device 222 that indicates the flow of power among the power transmission device 6, the power storage device 7, the solar cell 8, and the AC power supply device 11, and an elevator A power saving amount display device (power amount display device) 223 for displaying the power saving amount of the apparatus.

  The control device 5 sends information on the position of the car 1 to the operation display device 221. The operation display device 221 displays the position of the car 1 based on the information on the position of the car 1 sent from the control device 5.

  The control device 5 is configured such that the information indicating the state of the motor 31, the information indicating the position of the solar battery power selector switch 12, the information indicating the position of the motor power selector switch 14, and the voltage value of the power generated in the solar battery 8 are a predetermined voltage. Information indicating whether or not the value is exceeded is sent to the energy flow display device 222. In the energy flow display device 222, information indicating the state of the motor 31, information indicating the position of the solar battery power selector switch 12, information indicating the position of the motor power selector switch 14, and the voltage value of power generated in the solar battery 8 are predetermined. The flow of electric power among the motor 31, the power storage device 7, the solar cell 8, and the AC power supply device 11 is displayed on the basis of information indicating whether or not the voltage value is exceeded.

  Specifically, when the state of the motor 31 is a power running state, the energy flow display device 222 displays that power is sent from the power storage device 7 to the motor 31, and the state of the motor 31 is in a regenerative state. In addition, the fact that electric power is sent from the motor 31 to the power storage device 7 is displayed. Further, the energy flow display device 222 displays that the electric power of the solar cell 8 is sent to the power storage device 7 and the motor 31 when the voltage value of the solar cell 8 exceeds a predetermined voltage value. Further, the energy flow display device 222 displays that the power generated in the motor 31 is switched from the power storage device 7 to the AC power supply device 11 when the power storage device 7 is fully charged. Further, the energy flow display device 222 displays that the power of the solar cell 8 is switched from the power storage device 7 to the AC power supply device 11 when the power storage device 7 is in a fully charged state.

  The power saving amount display device 223 displays the amount of power sent from the power storage device 7 and the solar cell 8 to the motor 31 as a bar graph based on the calculation result of the power amount calculation device 20. Since the electric power sent from the power storage device 7 to the motor 31 is the electric power in which the regenerative power of the motor 31 is stored in the power storage device 7, the amount of power sent from the power storage device 7 to the motor 31 is the power saving amount of the elevator device. Become. Moreover, since the electric power sent to the motor 31 from the solar cell 8 differs from the electric power input from external power supply devices, such as the alternating current power supply device 11, the electric energy sent from the solar cell 8 to the motor 31 is the elevator apparatus. Power saving amount. That is, the power saving amount display device 223 displays the power saving amount of the elevator apparatus based on the calculation result of the power amount calculation device 20.

The power saving amount display device 223 calculates the CO ₂ reduction amount from the amount of power sent from the power storage device 7 and the solar cell 8 to the motor 31 and displays the calculated CO ₂ reduction amount as a bar graph. Further, the power saving amount display device 223 displays whether or not the amount of power sent from the power storage device 7 and the solar cell 8 to the motor 31 has reached the target power amount based on the signal sent from the determination device 21. Specifically, the power saving amount display device 223 is lit in blue when an achievement signal is sent from the determination device 21, and is lit in red when an unachieved signal is sent from the determination device 21.

  The elevator system includes an elevator device and an elevator monitoring device.

  Next, the operation of the elevator monitoring device will be described. FIG. 3 is a flowchart showing the operation of the elevator monitoring apparatus of FIG. In the figure, first, each of the operation display device 221, the energy flow display device 222, and the power saving amount display device 223 displays an initial screen (step S101).

  Thereafter, the control device 5 determines whether or not the power value of the solar cell 8 exceeds a predetermined voltage value based on the detection result of the voltage detection device 81 (step S102). If the control device 5 determines in step S102 that the power value of the solar cell 8 does not exceed the predetermined voltage value, step S102 is repeated. On the other hand, when the control device 5 determines in step S102 that the power value of the solar cell 8 has exceeded a predetermined voltage value, the energy flow display device 222 sends the power of the solar cell 8 to the power storage device 7 and the motor 31. Is displayed (step S103).

  Thereafter, the control device 5 determines whether or not the car 1 has moved based on the detection result of the encoder device 4 (step S104). If the controller 5 determines in step S104 that the car 1 has not moved, step S104 is repeated. On the other hand, when the control device 5 determines that the car 1 has moved in step S104, the operation display device 221 displays the position of the car 1 (step S105).

  Thereafter, the control device 5 determines whether or not the car 1 has been raised based on the detection result of the encoder device 4 (step S106). When the control device 5 determines that the car 1 has risen in step S106, the energy flow display device 222 displays that the state of the motor 31 is the power running state (step S107), and further, the power storage device 7 and the solar cell. 8 indicates that each power of 8 is sent to the motor 31. On the other hand, when the control device 5 determines that the car 1 has not risen in step S106, the energy flow display device 222 displays that the state of the motor 31 is in the regenerative state (step S108). It is displayed that the electric power generated in is sent to the power storage device 7.

  Thereafter, control device 5 determines whether or not the state of power storage device 7 is a fully charged state based on the detection result of charge state detection device 9 (step S109). If control device 5 determines in step S109 that the state of power storage device 7 is not fully charged, step S109 is repeated. On the other hand, when control device 5 determines that power storage device 7 is fully charged in step S109, energy flow display device 222 displays power feedback from motor 31 to AC power supply device 11 (step S110). ).

Next, the operation of the power saving amount display device 223 will be described. FIG. 4 is a flowchart showing the operation of the power saving amount display device 223 of FIG. In the figure, first, the power detection device 19 detects the power sent from the power storage device 7 to the motor 31 and the power sent from the solar cell 8 to the motor 31 (step S201). Thereafter, the power saving amount display device 223 displays the power saving amount and the CO ₂ reduction amount of the elevator apparatus (step S202).

  Thereafter, the power saving amount display device 223 determines whether or not the power saving amount is equal to or greater than the target value based on the determination result of the determination device 21 (step S203). If the power saving amount display device 223 determines in step S203 that the power saving amount is not equal to or greater than the target value, the process returns to step S201. On the other hand, when the power saving amount display device 223 determines in step S203 that the power saving amount is equal to or greater than the target value, the power saving amount display device 223 displays that the power saving amount has reached the target value (step S204). ).

  As described above, according to the elevator monitoring apparatus according to the first embodiment of the present invention, the winding drum type hoisting machine 3 having the motor 31 whose state is switched between the power running state and the regenerative state, and the state of the motor 31 Is the power storage device 7 that sends power to the motor 31 when the motor 31 is in the power running state, and sends the power generated in the motor 31 when the motor 31 is in the regenerative state, and the car that moves up and down in conjunction with the drive of the motor 31 1 is an elevator monitoring device that monitors an elevator device including a power detection device 19 that detects power sent from the power storage device 7 to the motor 31, and a power storage device 7 based on a detection result of the power detection device 19. Since the power saving amount display device 223 displays the amount of power sent from the motor 31 to the motor 31, the power saving amount display device 223 stores the electric power generated in the motor 31. Displaying the amount of power delivered to Luo motor 31. Thereby, the power saving amount display device 223 displays the power saving amount of the elevator apparatus by using the regenerative power. As a result, the supervisor can easily confirm the power saving amount of the elevator apparatus by using the regenerative power.

  The power detection device 19 further detects the power generated by the solar cell 8 and sent from the solar cell 8 to the motor 31, and the power saving amount display device 223 is based on the detection result of the power detection device 19. Since the amount of power sent from the power storage device 7 and the solar cell 8 to the motor 31 is displayed, in addition to the regenerative power of the motor 31, the amount of power generated by the power generated in the solar cell 8 is also displayed as a power saving amount. . As a result, the supervisor can easily confirm the power saving amount of the elevator apparatus by using the regenerative power and the power of the solar battery 8.

  In addition, an energy flow display device 222 that displays the direction of power transmission between the power storage device 7 and the motor 31 is further provided. The energy flow display device 222 starts from the power storage device 7 when the motor 31 is in a power running state. Since it is displayed that electric power is sent to the motor 31, and when the state of the motor 31 is in a regenerative state, it is displayed that electric power is sent from the motor 31 to the power storage device 7, so that the supervisor can The direction of power transmission to 31 can be easily confirmed.

  In addition, the energy flow display device 222 is configured such that when the power value of the solar cell 8 that generates power to be sent to the power storage device 7 or the motor 31 exceeds a predetermined voltage value, the power of the solar cell 8 is converted to the power storage device 7 or the motor 31. Is further displayed, the supervisor can easily confirm the direction of power transmission among the power storage device 7, the motor 31, and the solar cell 8.

  In addition, energy flow display device 222 further displays that the electric power generated in motor 31 is switched from power storage device 7 to AC power supply device 11 when the power storage device 7 is fully charged. The monitor can easily confirm that the regenerative current is discharged to the AC power supply device 11.

  Further, the energy flow display device 222 switches the power of the solar battery 8 that generates power to be sent to the power storage device 7 from the power storage device 7 to the AC power supply device 11 when the power storage device 7 is fully charged. Since it is further displayed that it is sent, the supervisor can easily confirm that the electric power of the solar cell 8 is released to the AC power supply device 11.

  In addition, although the elevator apparatus provided with the charging device 10 was demonstrated in the said Embodiment 1, the elevator apparatus which is not provided with the charging device 10 may be sufficient.

  DESCRIPTION OF SYMBOLS 1 cage | basket, 2 ropes, 3 winding cylinder type hoisting machine, 4 encoder apparatus, 5 control apparatus, 6 power transmission apparatus, 7 electrical storage apparatus, 8 solar cell, 9 charge state detection apparatus, 10 charging apparatus, 11 AC power supply apparatus (external Power supply device), 12 solar cell power changeover switch, 13 power conditioner device, 14 motor power changeover switch, 15 diode, 16 diode, 17 operation device, 18 diode, 19 power detection device, 20 power amount calculation device, 21 determination device , 22 display device, 31 motor, 81 voltage detection device, 101 open / close switch, 102 converter, 121 contact, 122 contact, 123 contact, 141 contact, 142 contact, 143 contact, 221 operation display device, 222 energy flow display device, 223 Energy saving display device (electric energy display device).

Claims (6)

A winding drum type hoisting machine having a motor that switches between a power running state and a regenerative state; and when the motor is in the power running state, power is sent to the motor, and the motor is in the regenerative state. An elevator monitoring device for monitoring an electric storage device to which electric power generated in the motor is sent in some cases and an elevator device having a car that moves up and down in conjunction with driving of the motor,
A power detection device for detecting power sent from the power storage device to the motor;
An elevator monitoring device comprising: an electric energy display device that displays an electric energy sent from the power storage device to the motor based on a detection result of the electric power detection device. The power detection device further detects power that is generated by a solar cell and is sent from the solar cell to the motor,
2. The elevator monitoring device according to claim 1, wherein the power amount display device displays the amount of power sent from the power storage device and the solar cell to the motor based on a detection result of the power detection device. . An energy flow display device that displays a direction of power transmission between the power storage device and the motor;
The energy flow display device displays that power is sent from the power storage device to the motor when the state of the motor is the power running state, and when the state of the motor is the regenerative state, The elevator monitoring apparatus according to claim 1 or 2, wherein power is sent from the motor to the power storage device.   The energy flow display device sends the power of the solar cell to the power storage device or the motor when the power value of the solar cell that generates power to be sent to the power storage device or the motor exceeds a predetermined voltage value. The elevator monitoring apparatus according to claim 3, further displaying the above.   The energy flow display device further displays that power generated in the motor is switched from the power storage device to an external power supply when the power storage device is fully charged. The elevator monitoring apparatus of Claim 3 or Claim 4 to do.   In the energy flow display device, when the state of charge of the power storage device is a fully charged state, the power of a solar cell that generates power to be sent to the power storage device is switched from the power storage device to an external power supply device and is sent. The elevator monitoring apparatus according to any one of claims 3 to 5, further displaying.

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