JP6013524B2 - Elevator contactless power supply system - Google Patents

Description

  Embodiments of the present invention relate to an elevator non-contact power supply system that supplies electric power necessary for operation of an elevator in a non-contact manner.

  In recent years, interest in non-contact power supply technology has increased, and it has come to be used in various fields. The non-contact power supply technology mainly uses the principle of electromagnetic induction, and transmits electric power in a non-contact manner by generating an electromotive force by applying an alternating magnetic flux generated in the primary coil to the secondary coil. Technology.

  In an elevator, it is considered that electric power consumed by a car is supplied in a contactless manner. In this case, the car is provided with a battery for storing electric power supplied in a non-contact manner. Electric power stored in the battery is used to drive equipment (lighting equipment, doors, etc.) in the car. When the remaining amount of the battery becomes low during operation of the car, the car is moved to the power supply floor and the battery is charged by non-contact power supply.

JP 2003-54849 A

  In the above-described elevator, cordlessness is realized by using a battery as a power source for the car. However, in the configuration using the power of the battery, the operation of the car must be stopped and replaced when the battery is at the end of its life or failure. While the battery is being replaced, the driving service cannot be performed, and passengers are inconvenienced. In addition, if the battery breaks down while the car is in operation, there is a possibility that a confinement accident in the car will occur.

  The problem to be solved by the present invention is to provide a contactless power feeding system for an elevator that can continue to operate safely even if the life or failure of the battery occurs in a configuration in which a car is operated using the power of the battery. Is to provide.

The contactless power feeding system for an elevator according to the present embodiment includes an elevator contactless power feeding system that feeds power to a passenger car in a contactless manner, at least two batteries for storing electric power fed to the passenger car, and the passenger car. The first control device that controls the operation of the car and the ratio of the number of times of charging / discharging with respect to each of the batteries are set so as not to overlap with the replacement time, and the charging / discharging of each of the batteries is maintained to maintain the ratio. And a second control device for controlling the discharge operation.
When any one of the batteries is replaced, the second control device is configured to charge the battery after replacement and another battery according to the ratio of the number of times of charging / discharging set for the battery to be replaced. The ratio of the number of discharges is reset.

FIG. 1 is a diagram illustrating a configuration of an elevator according to the first embodiment. FIG. 2 is a block diagram showing the configuration of the contactless power feeding system of the elevator in the same embodiment. FIG. 3 is a flowchart for explaining the operation at the time of battery discharge in the embodiment. FIG. 4 is a flowchart for explaining the operation at the time of battery discharge in the embodiment. FIG. 5 is a diagram showing a relationship between the two threshold values M1 and M2 with respect to the remaining amount of the two batteries in the embodiment, and FIG. 5A shows that the remaining amount of both of the two batteries is larger than the first threshold value M1. FIG. 4B shows a state in which the remaining amount of one of the two batteries is less than or equal to the first threshold M1, and FIG. 5C shows a state in which the remaining amount of both of the two batteries is less than or equal to the first threshold M1. Show. FIG. 6 is a flowchart for explaining the operation at the time of battery charging in the embodiment. FIG. 7 is a flowchart showing an operation for changing the setting of the second threshold M2 in the embodiment. FIG. 8 is a diagram for explaining the relationship between the second threshold M2 and the traffic demand in the embodiment. FIG. 9 is a flowchart showing an operation for changing the setting of the second threshold value M2 by another method in the embodiment. FIG. 10 is a diagram for explaining the relationship between the second threshold value M2 and the hall call generation interval in the embodiment. FIG. 10A shows a state in which the hall call generation interval becomes shorter as time elapses. FIG. 2B shows a state in which the hall call generation interval becomes longer with time. FIG. 11 is a block diagram showing a configuration of an elevator non-contact power feeding system according to the second embodiment. FIG. 12 is a flowchart showing the processing operation after battery replacement in the same embodiment. FIG. 13 is a diagram showing an operation when the primary battery is replaced at the end of its life while using two systems of batteries in the embodiment. FIG. 14 is a diagram showing an operation in the case where a non-primary battery is replaced due to a failure while using two systems of batteries in the embodiment. FIG. 15 is a diagram illustrating an operation in the case where the primary battery is replaced due to a failure while using two batteries in the embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram illustrating a configuration of an elevator according to the first embodiment. The example of FIG. 1 shows an example in which a 1: 1 roping type elevator is installed in a building.

  A car 11 and a counterweight 12 are provided in the hoistway 10 of the building. The car 11 and the counterweight 12 are supported by guide rails (not shown) so as to be movable up and down.

  A car 11 is connected to one end of the main rope 13, and a counterweight 12 is connected to the other end of the main rope 13. The main rope 13 is wound around a main sheave 14 a attached to the rotating shaft of the hoisting machine 14. 14b is a deflecting sheave. The hoisting machine 14 is installed in the machine room of the building together with the elevator control device 15. In the machine roomless type elevator without the machine room, the hoisting machine 14 and the elevator control device 15 are installed in the hoistway 10.

  The elevator control device 15 performs control of the entire elevator including drive control of the hoisting machine 14, and is sometimes referred to as a “control panel”. When the hoisting machine 14 is driven by a drive instruction from the elevator control device 15, the car 11 and the counterweight 12 are lifted and lowered in a slipping manner via the main rope 13.

  The car 11 is provided with a car control device 16 and a car operation panel 17. The car control device 16 performs car door opening / closing control, lighting device drive control, and the like. The car operation panel 17 is provided in the car room and includes a destination floor button 17a, a door opening button 17b, a door closing button 17c, and the like corresponding to each floor.

  On the other hand, hall call buttons 18a, 18b, 18c,... The hall call buttons 18a, 18b, 18c... Are made of direction buttons for designating the user's destination direction (upward or downward).

  Here, in the present embodiment, electric power is supplied to the car 11 in a contactless manner. Specifically, a power feeding device 20 is installed in the hoistway 10, and a power receiving device 21 is installed in the car 11. Necessary power is fed from the power feeding device 20 to the power receiving device 21 in a contactless manner with the power feeding device 20 and the power receiving device 21 facing each other on a specific floor (power feeding floor). The power supply floor is installed on the top floor, for example. Alternatively, the power feeding device 20 may be installed on the reference floor where the car 11 stops most frequently.

  The power receiving device 21 is installed on a side surface or an upper portion of the car 11 so as to face the power feeding device 20 when the car 11 comes to the power feeding floor. A battery device 22 is installed in the car 11. The configuration of the battery device 22 will be described in detail later with reference to FIG.

  By supplying power to the car 11 in a non-contact manner, a power cable connected to the car 11 is not required. The signal transmission between the elevator control device 15 and the car control device 16 may be wired or wireless.

  FIG. 2 is a block diagram showing the configuration of the elevator non-contact power feeding system, and mainly shows the configuration of the battery device 22.

  The battery device 22 includes two batteries (A) 31, a battery (B) 32, a battery control device 33, charging circuits 34 and 37, and switches 35, 36, 38, and 39.

  S11 to S20 in the drawing represent signals (information) output from the battery device 22 or signals (information) input to the battery device 22. S11: Charge permission signal, S12: Discharge permission signal, S13: Charge permission signal, S14: Discharge permission signal, S15: Battery information, S16: Battery information, S17: First charge request signal, S18: Second charge request Signal, S19: operation state information, S20: power supply start signal.

  The battery (A) 31 and the battery (B) 32 are, for example, lithium secondary batteries that have a large capacity and can be rapidly charged. The battery (A) 31 and the battery (B) 32 are replaceably mounted in the battery device 22.

  The battery control device 33 selectively uses the battery (A) 31 and the battery (B) 32 according to the ratio of the number of times of charging and discharging set in advance during operation of the car 11. Specifically, the battery control device 33 sets the ratio of the number of times of charging / discharging with respect to the battery (A) 31 and the battery (B) 32 to n: 1 so that the replacement times do not overlap. n is an arbitrary constant. The constant n may be an integer or not an integer. The battery control device 33 controls the charge / discharge operation of the battery (A) 31 and the battery (B) 32 so that the ratio n: 1 is maintained during operation of the car 11.

  The battery control device 33 includes a counter (A) 41, a counter (B) 42, a battery remaining amount evaluation unit 43, a function for controlling the charging / discharging operation of the battery (A) 31 and the battery (B) 32. A generation interval evaluation unit 44 and a table storage unit 45 are provided.

  The counter (A) 41 counts the number of times the battery (A) 31 is charged / discharged. The counter (B) 42 counts the number of times of charging / discharging of the battery (B) 32. The count value of the counter (A) 41, that is, the current charge / discharge number of the battery (A) 31 is set to N1. The count value of the counter (B) 42, that is, the current charge / discharge count of the battery (B) 32 is set to N2.

  The remaining battery capacity evaluation unit 43 has a first threshold value that is defined as a determination criterion for whether discharge is not necessary / requires charging, and a second threshold value that is defined as a determination criterion for whether discharge is possible / requires charging. The remaining battery capacity evaluation unit 43 evaluates the remaining capacity of the battery (A) 31 and the battery (B) 32 in comparison with the first threshold M1 and the second M2.

  Here, assuming that the first threshold value is M1 and the second threshold value is M2, M1 <M2 (see FIG. 5). The values of M1 and M2 are determined to be optimum values in consideration of the capacity and average life of the battery (A) 31 and the battery (B) 32.

  The call generation interval evaluation unit 44 evaluates the generation interval of hall calls registered on each floor. Specifically, the call generation interval evaluation unit 44 measures the generation interval of the hall calls for a predetermined number of times (for example, 10 times), and determines the hall call generation interval (T2) obtained in this measurement and the previous time. The state of traffic demand is judged by comparing the hall call generation intervals (T1) obtained by measurement.

  The table storage unit 45 stores a table TBL1 in which a relationship between a time zone and traffic demand is set in advance. For example, if the average number of passengers per unit time on each floor is greater than a preset reference value, it is determined that the traffic demand is high, and if it is less than the reference value, it is determined that the traffic demand is low.

  In general, in an office building, traffic demand is higher than usual during busy hours such as morning work hours (8:00 to 10:00) and evening work hours (17:00 to 19:00). There are many. On the other hand, traffic demand is less during the quiet hours than at normal times. In the table TBL1, it is assumed that information relating to such traffic demands that differ for each time zone is stored in an updatable manner.

  The charging circuit 34 and the switches 35 and 36 are provided for the battery (A) 31. The charging circuit 34 is a circuit for charging the battery (A) 31 with the power received by the power receiving device 21.

  The switch 35 is a changeover switch for charging. The switch 35 is normally in an OFF state (open state), and is switched to an ON state (closed state) by a charge permission signal S11 output from the battery control device 33. When the switch 35 is switched to the ON state, the charging circuit 34 is connected to the power receiving device 21. At this time, if the car 11 is stopped at the power supply floor, power is supplied from the power supply device 20 to the power receiving device 21, and the power is supplied to the battery (A) 31 via the charging circuit 34.

  The switch 36 is a changeover switch for discharging. The switch 36 is normally in an OFF state (open state), and is switched to an ON state (closed state) by a discharge permission signal S12 output from the battery control device 33. When the switch 36 is switched to the ON state, the battery (A) 31 is connected to the car control device 16. Thereby, the electric power stored in the battery (A) 31 is discharged, and the discharged electric power is given to the car control device 16. The electric power given to the car control device 16 is used not only as driving power for the car control device 16 but also for lighting equipment in the car 11, the car operation panel 17, and the like.

  The charging circuit 37 and the switches 38 and 39 are provided for the battery (B) 32. The charging circuit 37 is a circuit for charging the battery (B) 32 with the power received by the power receiving device 21.

  The switch 38 is a changeover switch for charging. The switch 38 is normally in an OFF state (open state), and is switched to an ON state (closed state) by a charge permission signal S13 output from the battery control device 33. When the switch 38 is switched to the ON state, the charging circuit 37 is connected to the power receiving device 21. At this time, if the car 11 is stopped at the power supply floor, power is supplied from the power supply device 20 to the power receiving device 21, and the power is supplied to the battery (B) 32 via the charging circuit 37.

  The switch 39 is a changeover switch for discharging. The switch 39 is normally in an OFF state (open state), and is switched to an ON state (closed state) by a discharge permission signal S14 output from the battery control device 33. When the switch 39 is switched to the ON state, the battery (B) 32 is connected to the car control device 16. Thereby, the electric power stored in the battery (B) 32 is discharged, and the discharged electric power is given to the car control device 16. The electric power given to the car control device 16 is used not only as driving power for the car control device 16 but also for lighting equipment in the car 11, the car operation panel 17, and the like.

  The battery (A) 31 outputs battery information S15 indicating the current remaining amount, the state of being charged / discharged, and the like to the battery control device 33. Similarly, the battery (B) 32 outputs battery information S <b> 16 indicating the current remaining amount and the state of being charged / discharged to the battery control device 33.

  Here, when the remaining amount of either the battery (A) 31 or the battery (B) 32 is equal to or less than the second threshold value M2, the battery control device 33 sends a first charge request signal to the car control device 16. S17 is output. When the remaining amount of both the battery (A) 31 and the battery (B) 32 is equal to or less than the threshold value M1, the second charge request signal S18 is output from the battery control device 33 to the car control device 16.

  When the elevator controller 15 receives the first charging request signal S17, the elevator controller 15 moves the car 11 to the power supply floor at a predetermined timing. Specifically, the “predetermined timing” is when the car call and the hall call are not registered in the car 11, that is, when the car 11 is in a call waiting state.

  “Place call” is a call signal registered by operating the hall call buttons 18a, 18b, 18c... Installed at the halls on each floor, and includes information on registered floors and destination directions. The “car call” is a call signal registered by operating the destination floor button 17a on the car operation panel 17 provided in the car room, and includes destination floor information.

  The second charge request signal S18 is more urgent than the first charge request signal S17. When the elevator control device 15 receives the second charging request signal S18, the elevator control device 15 stops the car 11 at the nearest floor and gets off the passenger, and then prohibits call registration (registration of hall call and car call). The car 11 is moved to the power supply floor.

  When the car 11 stops at the power supply floor, the power receiving device 21 provided in the car 11 faces the power supply device 20. In this state, a power supply start signal S20 is output from the elevator control device 15 to the power supply device 20, and power is supplied to the car 11.

  On the other hand, the car control device 16 acquires information related to the current driving state of the car 11 from the elevator control device 15 and supplies the information to the battery control device 33 as driving state information S19. The driving state information S19 includes information necessary for determining traffic demand, such as the number of registered calls, the car load, and the unanswered time, in addition to the car position and the driving direction. The battery control device 33 measures (learns) traffic demand (average number of passengers) for each predetermined time zone based on the driving state information S19, and sets a table TBL1 in which the relationship between the time zone and the traffic demand is set. It has a function to update.

  S21 and S22 represent signals between the car control device 16 and the car operation panel 17. S21: Control signal of the car operation panel 17, S22: Operation signal of each button of the car operation panel 17. The control signal S21 includes a signal for prohibiting registration of a car call.

  S23 and S24 represent signals between the elevator controller 15 and the hall call buttons 18a, 18b, 18c. S23: Control signals for the hall call buttons 18a, 18b, 18c... S24: Operation signals for the hall call buttons 18a, 18b, 18c. The control signal S23 includes a signal for prohibiting registration of the hall call.

  Next, the operation of the embodiment will be described.

  The operations relating to the charge / discharge control of the two systems of the battery will be described separately for (a) when the battery is discharged, (b) when the battery is charged, and (c) when the second threshold value M2 is changed.

(A) During Battery Discharge FIGS. 3 and 4 are flowcharts for explaining the operation during battery discharge. The processing shown in this flowchart is executed when the operation of the car 11 is started. This flowchart mainly shows the operation of the battery control device 33, but partially includes the operation of the elevator control device 15.

  First, the battery control device 33 (remaining battery capacity evaluation unit 43) is configured to store the battery (A) 31 and the battery (B) based on the battery information S15 and S16 output from the battery (A) 31 and the battery (B) 32. 32 is determined (steps A11, A12, A13).

  FIG. 5 shows the relationship between the two threshold values M1 and M2 with respect to the remaining amount of the battery (A) 31 and the battery (B) 32.

  FIG. 5A shows a state in which the remaining amount of both the battery (A) 31 and the battery (B) 32 is greater than the first threshold value M1 (one remaining amount is greater than the second threshold value M2). . FIG. 5B shows a state in which the remaining amount of one of the battery (A) 31 and the battery (B) 32 is not more than the first threshold value M1. FIG. 3C shows a state where the remaining amounts of both the battery (A) 31 and the battery (B) 32 are not more than the first threshold value M1. As described above, the first threshold value M1 is a criterion for determining whether discharge is possible or charging is necessary. The second threshold value M2 is a criterion for determining whether discharge is possible or need charging.

  If the remaining amounts of both the battery (A) 31 and the battery (B) 32 are larger than the first threshold value M1 (No in step A11 → No in A13), it is determined as the state a. As will be described later, in the state a, the remaining amount of the battery (A) 31 and the battery (B) 32 is compared with the second threshold value M2, which is a determination criterion for whether discharge or charge is necessary.

  On the other hand, if the remaining amount of either the battery (A) 31 or the battery (B) 32 is equal to or less than the first threshold value M1 (Yes in step A11 → No in A12 or No in step A11 → Yes in A13), State b is determined.

  If the remaining amount of both the battery (A) 31 and the battery (B) 32 is equal to or less than the first threshold value M1 (Yes in step A11 → Yes in A12), it is determined as the state c. The state c is a state where both the battery (A) 31 and the battery (B) 32 need to be charged, that is, a state where “emergency charging” is necessary.

・ State a
In state a, the following processing is executed.

  The battery control device 33 selects one of the battery (A) 31 and the battery (B) 32 as a discharge target based on the charging / discharging times N1 and N2 of the battery (A) 31 and the battery (B) 32 (step) A14).

  The selection condition is N1> n × N2 (n is an arbitrary constant). When this selection condition is satisfied (Yes in Step A14), the battery control device 33 performs discharge from the battery (B) 32 and increments the charge / discharge number N2 (Steps A15 and A16). Specifically, the battery control device 33 outputs the discharge permission signal S14 to turn on the switch 39 to supply the electric power of the battery (B) 32 to the car control device 16. At this time, the battery control device 33 updates the value of the counter (B) 42 corresponding to the battery (B) 32 (number of times of charging / discharging N2) by one.

  When the selection condition is not satisfied (No in Step A14), the battery control device 33 discharges from the battery (A) 31 and increments the charge / discharge count N1 (Steps A17 and A18). Specifically, the battery control device 33 outputs the discharge permission signal S12 to turn on the switch 36, and supplies the electric power of the battery (A) 31 to the car control device 16. At this time, the battery control device 33 updates the value of the counter (A) 41 corresponding to the battery (A) 31 (number of times of charging / discharging N1) by one.

  Thus, by selecting one of the battery (A) 31 and the battery (B) 32 under the above selection conditions, the ratio of the number of times of charging / discharging with respect to the battery (A) 31 and the battery (B) 32 is set to n: 1. Can be deliberately biased.

  For example, when n = 2, the ratio of the number of times of charging / discharging with respect to the battery (A) 31 and the battery (B) 32 is 2: 1. This means that the battery (A) 31 is preferentially used at twice the frequency of the battery (B) 32. During operation of the car 11, the battery (A) 31 or the battery (B) 32 is selected as a discharge target in the determination of step A14 so as to maintain this ratio. Thereby, it is possible to prevent the battery (A) 31 and the battery (B) 32 from being changed at the same time.

  When the battery control device 33 selects the battery (A) 31 or the battery (B) 32 to perform discharging, the battery control device 33 compares the remaining amount of the selected battery with the second threshold value M2 (step A19).

  The second threshold value M2 is a criterion for determining whether discharge is possible or need charging. That is, in step A19, it is determined whether or not the discharged battery is in a state that requires charging. If the remaining amount of the battery is greater than the second threshold value M2 (No in step A19), the battery control device 33 determines that charging is not necessary, and repeats the processing from step A11. Thereby, the frequency | count of charge of a battery can be reduced and the lifetime can be extended.

  When the remaining amount of the battery is equal to or less than the second threshold value M2 (Yes in step A19), the battery control device 33 determines that charging is necessary, and sends the first charge request signal S17 to the elevator via the car control device 16. By outputting to the control device 15, it is notified that the battery needs to be charged (step A20).

・ State b
In state b, the following processing is executed.

  When the remaining amount of the battery (B) 32 is equal to or less than the first threshold value M1 (Yes in Step A13), the battery control device 33 discharges the power of the battery (A) 31 (Step A21). Specifically, the battery control device 33 outputs a discharge permission signal S11 to turn on the switch 36 to supply the electric power of the battery (A) 31 to the car control device 16.

  At this time, the battery control device 33 outputs a first charge request signal S17 to the elevator control device 15 via the car control device 16 to notify that the battery (B) 32 needs to be charged. (Step A22). Further, the battery control device 33 updates the value of the counter (A) 41 corresponding to the battery (A) 31 (number of times of charging / discharging N1) by +1 (step A23).

  On the other hand, when the remaining amount of the battery (A) 31 is equal to or less than the first threshold value M1 (No in Step A12), the battery control device 33 discharges the power of the battery (B) 32 (Step A24). Specifically, the battery control device 33 outputs the discharge permission signal S14 to turn on the switch 39 to supply the electric power of the battery (B) 32 to the car control device 16.

  At this time, the battery control device 33 outputs a first charge request signal S17 to the elevator control device 15 via the car control device 16 to notify that the battery (A) 31 needs to be charged. (Step A25). Further, the battery control device 33 updates the value of the counter (B) 42 (charge / discharge count N2) corresponding to the battery (B) 32 by +1 (step A26).

・ State c
When the battery (A) 31 and the battery (B) 32 are both in the state c where the battery (A) 31 and the battery (B) 32 need to be charged (a state where emergency charging is necessary), the following processing is executed. At this time, the battery (A) 31 and the battery (B) 32 are not completely in an empty state, and at least the electric power remains until the car 11 is moved to the nearest floor and opened. And As the power source of the car 11 during this period, either the battery (A) 31 or the battery (B) 32 may be used, or the battery with the remaining amount may be used.

  The battery controller 33 urgently needs to charge both the battery (A) 31 and the battery (B) 32 by outputting the second charge request signal S18 to the elevator controller 15 via the car controller 16. (Step A27).

  In response to this notification, the elevator control device 15 moves the car 11 to the nearest floor, where it is opened and the passenger gets off (step A28). At this time, the elevator control device 15 cancels the already registered call (the hall call and the car call), and further prohibits the new call registration (step A29).

  Specifically, the elevator control device 15 outputs a control signal S21 for prohibiting registration of a car call to the car operation panel 17 via the car control device 16, and a control signal S23 for prohibiting registration of a hall call. Are output to the hall call buttons 18a, 18b, 18c. In this case, for example, “Elevator operation will be suspended. Please be aware that call registration cannot be performed for a while.” May be.

  After the passengers in the car 11 get off at the nearest floor, the elevator controller 15 moves the car 11 to the power supply floor (step A30). When the car 11 stops at the power supply floor, the power receiving device 21 provided in the car 11 faces the power supply device 20. In this state, a power supply start signal S20 is output from the elevator control device 15 to the power supply device 20, and power is supplied to the car 11. At this time, in the battery control device 33, the switches 35 and 38 are turned on by the output of the charge permission signals S11 and S13. Thereby, the electric power supplied from the power supply device 20 to the power receiving device 21 is charged to the battery (A) 31 and the battery (B) 32 through the charging circuits 34 and 37.

  When charging of the battery (A) 31 and the battery (B) 32 is started, the battery control device 33 includes a counter (A) 41 and a counter (B) 42 corresponding to the battery (A) 31 and the battery (B) 32. (Number of charge / discharge times N1 and number of charge / discharge times N2) is updated by +1 (step A31).

  When charging of both the battery (A) 31 and the battery (B) 32 is completed (Yes in step 32), the battery control device 33 sends the battery (A) 31 and the battery to the elevator control device 15 via the car control device 16. (B) The fact that the charging of 32 has been completed is notified (step A33). In addition, it is preferable to turn off the switches 35 and 38 immediately after completion of charging in order to prevent overcharging of the battery (A) 31 and the battery (B) 32.

  When the elevator control device 15 receives the notification of the completion of charging, it cancels the call registration prohibition and restarts the operation of the car 11 (step A34). At that time, for example, a message such as “restarting the elevator operation” may be sent to the passenger car 11 and the landings on each floor by voice or display.

(B) Operation at the time of battery charging Next, an operation when either one of the battery (A) 31 and the battery (B) 32 is charged will be described.

  FIG. 6 is a flowchart for explaining the operation during battery charging. It is assumed that the processing shown in this flowchart is executed by a timer interrupt that is periodically generated in the elevator control device 15. This flowchart mainly shows the operation of the elevator control device 15, but partially includes the operation of the battery control device 33.

  When the elevator control device 15 confirms that one of the battery (A) 31 and the battery (B) 32 is in a state that needs to be charged by the first charge request signal S17 (Yes in step B11), the following Perform the following process.

  That is, first, the elevator control device 15 determines whether or not an unanswered call is registered (step B12). The “call” here includes both a hall call and a car call. If an unanswered call has been registered (Yes in step B12), the elevator control device 15 moves the car 11 in response to the call (step B13). In this case, steps B11 to B13 are repeated until normal responses are continued until all registered calls are answered.

  When an unanswered call is not registered (No in Step B12), the elevator control device 15 moves the car 11 to the power supply floor (Steps B14 and B15). When the car 11 stops at the power supply floor, the power receiving device 21 provided in the car 11 faces the power supply device 20. In this state, a power supply start signal S20 is output from the elevator control device 15 to the power supply device 20, and power is supplied to the car 11.

  Here, for example, when the remaining amount of the battery (A) 31 is equal to or less than the second threshold M2 (Yes in Step B16), the battery control device 33 sets the switch 35 to the ON state by the output of the charge permission signal S11. deep. As a result, the power supplied from the power feeding device 20 to the power receiving device 21 is charged to the battery (A) 31 through the charging circuit 34. When the charging of the battery (A) 31 is started, the battery control device 33 updates the value of the counter (A) 41 corresponding to the battery (A) 31 (number of times of charging / discharging N1) by +1 (step B17).

  The battery control device 33 continues the charging operation for the battery (A) 31 until electric power of a predetermined capacity is accumulated in the battery (A) 31 (step B20). When the charging of the battery (A) 31 is completed (Yes in Step B18), a charging completion notification is issued from the battery control device 33 to the elevator control device 15 via the car control device 16, and the processing here is finished.

  When a new call (a landing call) is registered while the battery (A) 31 is being charged (Yes in Step B19), the elevator control device 15 instructs the battery control device 33 to stop the charging operation, The car 11 is moved to the floor where the call was made (step B13).

  That is, if a hall call is registered at an arbitrary floor during charging, the charging of the battery (A) 31 is interrupted and the normal operation is resumed immediately, thereby preventing a decrease in driving service. In this case, since the battery (A) 31 is being charged, power is not sufficiently accumulated, but there is no problem in operation because the other battery (B) 32 has power. If the call disappears, charging to the battery (A) 31 is resumed by the processing from step B11 again.

  The same applies when the remaining amount of the battery (B) 32 is equal to or less than the second threshold value M2 (including the first threshold value M1 or less) (Yes in step B21). In this case, in the battery control device 33, the switch 38 is turned on by the output of the charge permission signal S13. As a result, the power supplied from the power feeding device 20 to the power receiving device 21 is charged to the battery (B) 32 through the charging circuit 37. When the charging of the battery (B) 32 is started, the battery control device 33 updates the value of the counter (B) 42 corresponding to the battery (B) 32 (number of times of charging / discharging N2) by one (step B22).

  The battery control device 33 continues the charging operation for the battery (B) 32 until electric power of a predetermined capacity is accumulated in the battery (B) 32 (step B25). When the charging of the battery (B) 32 is completed (Yes in step B23), a charging completion notification is issued from the battery control device 33 to the elevator control device 15 via the car control device 16, and the processing here is finished.

  When a new call (a landing call) is registered while the battery (B) 32 is being charged (Yes in step B24), the elevator control device 15 instructs the battery control device 33 to stop the charging operation, and The car 11 is moved to the floor where the call was made (step B13).

  Thus, the battery (A) 31 and the battery (B) 32 are selectively used during operation of the car 11. Thereby, rather than using only one battery continuously, the burden of the battery (A) 31 and the battery (B) 32 can be reduced and the life can be extended. Even if one of the battery (A) 31 and the battery (B) 32 fails for some reason, the operation can be continued using the other battery.

  Moreover, since the ratio of the number of times of charging / discharging with respect to the battery (A) 31 and the battery (B) 32 is set so as to be biased to n: 1, the replacement times of both do not overlap with each other depending on the service life.

(C) Operation at the time of changing the setting of the second threshold value M2 The second threshold value M2 is a criterion for determining whether discharge is possible or need to be charged. If the remaining amount of the battery (A) 31 and the battery (B) 32 is greater than the second threshold value M2, discharging is possible and charging is not necessary. Therefore, if the second threshold M2 is lowered, the number of times of charging / discharging can be reduced and the replacement time can be delayed. However, when the traffic demand is high, charging of the battery (A) 31 and the battery (B) 32 may be delayed, which may hinder driving.

  Hereinafter, a method for changing the setting of the second threshold M2 will be described in detail.

(Change method 1)
FIG. 7 is a flowchart showing an operation for changing the setting of the second threshold M2. It is assumed that the processing shown in this flowchart is executed by a timer interrupt that is periodically generated in the battery control device 33.

  The table storage unit 45 of the battery control device 33 stores a table TBL1 in which a relationship between a time zone and traffic demand is set in advance. The battery control device 33 refers to this table TBL1 to determine whether or not it is a time zone when the traffic demand is higher than usual (steps C11 and C12).

  If the traffic demand is greater than usual, that is, a busy time zone (Yes in Step C11), the battery control device 33 sets the second threshold value M2 to be larger than the default value (Step C13). On the other hand, when the traffic demand is less than usual, that is, a quiet time zone (Yes in Step C12), the battery control device 33 makes the second threshold value M2 smaller than the default value (Step C14). .

  When the traffic demand is a normal time zone, that is, a time zone other than the busy time zone and the quiet time zone (No in Step C12), the battery control device 33 uses the second threshold value M2 as a default value as it is ( Step C15).

This will be specifically described with reference to FIG.
For example, the remaining battery level is divided into 10 levels. When the level is 10, the battery is full (full charge state), and when the level is 0, the battery is empty. Assume that the default value of the second threshold M2 is set to, for example, half of the battery capacity, that is, level 5. Note that the first threshold M1 is set to level 1, for example.

  When there is a lot of traffic demand, there are frequent call registrations, so there are few opportunities to move the car 11 to the power supply floor. That is, there are few opportunities to charge the battery (A) 31 and the battery (B) 32. In such a case, it is preferable to prepare for charging early. Therefore, when there is a lot of traffic demand, the second threshold value M2 is set and changed to level 8 which is increased from level 5 to +3. As a result, it is reported to the elevator control device 15 that the state where charging is necessary is earlier than usual, and when there is no call registration, the battery (A) 31 or the battery ( B) 32 can be charged.

On the other hand, when traffic demand is low, call registration is small, so there are many opportunities to move the car 11 to the power supply floor. That is, there are many opportunities to charge the battery (A) 31 and the battery (B) 32. In such a case, in order to prevent the deterioration of the battery (A) 31 and the battery (B) 32, it is preferable to continue the operation in a state where the battery (A) 31 and the battery (B) 32 are not charged as much as possible. Therefore, when the traffic demand is low, the second threshold value M2 is changed to level 2 which is lower than level 5 by -3. Thus, the fact that charging is necessary is reported to the elevator control device 15 later than usual, and charging of the battery (A) 31 or the battery (B) 32 can be delayed.

  In the table TBL1, a time zone in which traffic demand is high and the second threshold value M2 (+3) at that time, a time zone in which traffic demand is low and the second threshold value M2 (−3) at that time are set in advance. It shall be.

  In addition, here, the second threshold M2 is set and changed in a time zone in which there is a high traffic demand and a time zone in which the traffic demand is low. However, the traffic threshold is divided more finely for each time zone, and the second threshold M2 is set step by step. It is also possible to change the setting.

(Change method 2)
Next, another method for changing the setting of the second threshold M2 will be described.

  In the change method 1, the second threshold value M2 is set and changed with reference to the table TBL1 in which the relationship between the time zone and the traffic demand is set in advance. On the other hand, in the change method 2, the second threshold M2 is set and changed by determining the traffic demand from the call generation interval without using such a table TBL1. The “call” here refers to a hall call registered on each floor.

  FIG. 9 is a flowchart showing an operation of changing the setting of the second threshold value M2 by another method. It is assumed that the processing shown in this flowchart is executed by a timer interrupt that is periodically generated in the battery control device 33. In the figure, T1 is the previous hall call occurrence interval, and T2 is the current hall call occurrence interval. α is an arbitrary constant. The constant α may be an integer or may not be an integer.

  Assume that the interval of 10 hall calls is measured. The battery control device 33 compares the current hall call occurrence interval T2 with the previous hall call occurrence interval T1. As a result, if the current hall call occurrence interval T2 is longer than the time obtained by multiplying the previous hall call occurrence interval T1 by α, that is, if T2> α × T1 (Yes in step D11), the battery control device 33 Determines that the traffic demand is decreasing (step D12). In this case, the battery control device 33 makes the second threshold value M2 smaller than the default value (step D13).

  On the other hand, if the previous hall call generation interval T1 is longer than the time obtained by multiplying the current hall call generation interval T2 by α, that is, if T1> α × T2 (Yes in step D14), the battery control device 33 It is determined that the traffic demand is increasing (step D15). In this case, the battery control device 33 makes the second threshold value M2 larger than the default value (step D16).

  If neither T2> α × T1 nor T1> α × T2 (No in step D14), the battery control device 33 determines that there is no significant change in traffic demand (step D15). In this case, the battery control device 33 sets the second threshold value M2 as a default value as it is (step D18).

This will be specifically described with reference to FIG.
FIG. 10 is a diagram for explaining the relationship between the second threshold M2 and the generation interval of the hall call. FIG. 10A shows a state where the generation interval of the hall call becomes longer as time elapses. Indicates a state in which the hall call generation interval becomes shorter with time.

  As shown in FIG. 10 (a), it is assumed that the generation interval of ten hall calls gradually becomes longer with time. If the current hall call occurrence interval T2 is longer than the time obtained by multiplying the previous hall call occurrence interval T1 by α, it is determined that the occurrence frequency of the hall call is low and the traffic demand is reduced.

  For example, when T1 = 20 seconds, T2 = 60 seconds, and α = 1.5, α × T1 = 30 seconds, and T2> α × T1 is established. In this case, it is determined that the traffic demand is decreasing.

  When traffic demand is low, call registration is low, so there are many opportunities to move the car 11 to the power supply floor, and the battery (A) 31 and the battery (B) 32 can be charged at any time. Therefore, in order to prevent the deterioration of the battery (A) 31 and the battery (B) 32, it is preferable to continue the operation in a state in which charging is not possible as much as possible. Therefore, when the traffic demand is small, as shown in FIG. 8, the second threshold value M2 is changed from level 5 to level 2, which is increased by -3.

  On the other hand, as shown in FIG. 10B, it is assumed that the hall call generation interval is gradually shortened with time. If the previous hall call occurrence interval T1 is longer than the time obtained by multiplying the current hall call occurrence interval T2 by α, it is determined that the frequency of occurrence of hall calls is high and the traffic demand is increasing.

  For example, when T1 = 60 seconds, T2 = 20 seconds, and α = 1.5, α × T2 = 30 seconds, and T1> α × T2 holds. It is judged that traffic demand is increasing.

  When there is a lot of traffic demand, since there is frequent call registration, there are few opportunities to move the car 11 to the power supply floor, and charging of the battery (A) 31 and the battery (B) 32 may be delayed. Therefore, it is preferable to prepare for charging early. Therefore, when there is a lot of traffic demand, as shown in FIG. 8, the second threshold value M2 is changed to level 8 which is increased by 3 from level 5.

  Note that the value of α can be arbitrarily set.

  In addition, the second threshold value M2 is set and changed here when the traffic demand is high and low, but the traffic demand is further divided using a plurality of α, and the second threshold value M2 is set and changed stepwise. But it ’s okay.

  In this way, by changing the setting of the second threshold value M2 according to traffic demand, when the traffic demand is high, preparation for charging is made early, and the operation is interrupted due to a shortage of remaining battery power. Can be prevented in advance. On the other hand, when traffic demand is low, battery deterioration can be prevented by delaying the charging timing as much as possible.

(Second Embodiment)
Next, a second embodiment will be described.

  At the initial stage, the two batteries (batteries 31 and 32) are unused, and the ratio of the number of times of charging / discharging is set to n: 1 (n is a constant). During operation of the car 11, the charging / discharging operation of the two batteries is controlled so as to maintain this ratio. However, when one battery is replaced with a new battery due to its life or failure, the other battery that has not been replaced has already been charged and discharged several times, while the new battery is charged and discharged. The number of times is zero. Therefore, after battery replacement, it is necessary to review the ratio of the number of charge / discharge cycles for the two batteries.

  Hereinafter, charge / discharge control after battery replacement will be described.

  FIG. 11 is a block diagram showing a configuration of an elevator non-contact power feeding system according to the second embodiment. The basic configuration is the same as that shown in FIG. 2, and only the portion related to battery replacement is shown here. In the figure, S31 and S32 are unusable signals, S33 is a battery replacement signal, and S34 is a replacement completion signal.

  When the battery (A) 31 breaks down due to its lifetime or for some reason, the battery (A) 31 outputs an unusable signal S31 to the battery control device 33. The same applies to the battery (B) 32. When the battery (B) 32 becomes unusable due to a failure due to the life or for some reason, the unusable signal S32 is output from the battery (B) 32 to the battery control device 33.

  When the battery control device 33 receives the unusable signal S31 or the unusable signal S32, the battery control device 33 determines that the battery (A) 31 or the battery (B) 32 needs to be replaced. Then, the battery control device 33 outputs a battery replacement signal S33 indicating that the battery needs to be replaced to the elevator control device 15 via the car control device 16. When the elevator control device 15 receives this battery replacement signal S33, the elevator control device 15 stops the car 11 at the nearest floor and stops the operation for battery replacement.

  Here, when the battery (C) 50 is replaced, a replacement completion signal S14 is output from the battery (C) 50 to the battery control device 33, and the operation of the elevator (car 11) is resumed.

  FIG. 12 is a flowchart showing the processing operation after battery replacement. The process shown in this flowchart is executed at the timing when the battery control device 33 receives the replacement completion signal S34 from the new battery (C) 50.

  It is assumed that one of the battery (A) 31 and the battery (B) 32 is replaced with a new battery (C) 50 for some reason such as failure or life. When the battery is replaced with a new battery (C) 50 (Yes in step E11), the battery control device 33 determines whether or not the battery to be replaced is primary (step E12).

  Here, “primary” means “priority setting”. That is, the ratio of the number of times of charging / discharging is set higher than that of other batteries. At the initial time, since the ratio of the number of times of charging / discharging with respect to the battery (A) 31 and the battery (B) 32 is set to n: 1, the battery (A) 31 is primary.

  Here, when the battery to be replaced is the primary (Yes in Step E12), the battery control device 33 manages the other battery as the primary (Step E13).

  At that time, the battery control device 33 resets the ratio so that the number of times of charging / discharging the new battery (C) 50 after replacement is less than that of the other battery (step E14). Further, the battery control device 33 clears the count value of the counter corresponding to the battery to be replaced, and counts the number of charge / discharges for the new battery (C) 50 after replacement from zero using the counter. (Step E15).

  For example, it is assumed that the battery (A) 31 is to be replaced in a state where the ratio of the number of charge / discharge times to the battery (A) 31 and the battery (B) 32 is n: 1. In this case, since the battery (A) 31 is primary, the battery (B) 32 is managed as primary. At that time, the ratio of the number of charge / discharge cycles to the new battery (C) 50 and the battery (B) 32 is reset to 1: n.

  Further, the count value N1 of the counter (A) 41 corresponding to the battery (A) 31 is cleared, and the charge / discharge count for the new battery (C) 50 is newly counted by the counter (A) 41. The count value N2 of the counter (B) 42 corresponding to the primary battery (B) 32 is not cleared but is counted from the current value.

  On the other hand, it is assumed that the battery to be replaced is not the primary, that is, the battery in which the ratio of the number of charge / discharge times is set to be the first to be replaced (No in step E12). In such a case, the battery control device 33 clears the count value of the counter for the battery to be replaced while maintaining the current primary, and uses the counter for a new battery (C ) Count from zero of charge / discharge frequency for 50 (step E15).

  For example, when the ratio of the number of times of charging / discharging with respect to the battery (A) 31 and the battery (B) 32 is n: 1 and the battery (B) 32 is to be replaced, the battery (A) 31 is the primary The ratio remains the same.

  Further, the count value N2 of the counter (B) 42 corresponding to the battery (B) 32 is cleared, and the charge / discharge count for the new battery (C) 50 is newly counted by the counter (B) 42. The count value N1 of the counter (A) 41 corresponding to the primary battery (A) 31 is not cleared and is counted from the current value.

The operation after battery replacement will be described in detail with reference to FIGS.
For simplicity of explanation, one of the two batteries is “battery 1” and the other is “battery 2”. Battery life is due to life and failure. In case of failure, the battery must be replaced before the end of its life. The ratio of the number of times of charging / discharging with respect to the battery 1 and the battery 2 is set to 2: 1, and it is assumed that the life is reached when the number of times of charging / discharging reaches 100 times. Actually, the battery 1 and the battery 2 are not always used accurately at 2: 1 depending on the operation state of the car 11.

(1) When the primary battery is replaced at the end of life First, the case where the primary battery is replaced at the end of its life will be described.

  FIG. 13 is a diagram showing an operation in the case where the primary battery is replaced at the end of its life while using two systems of batteries.

  Initially, battery 1 is primary and is used twice as often as battery 2. Therefore, when the number of times of charging / discharging of the battery 2 is close to 50 times, the number of times of charging / discharging of the battery 1 is close to 100 times. When the number of times of charge / discharge of the battery 1 reaches 100 times, it is replaced with another new battery (referred to as a new battery 1).

  In this case, since the battery 1 to be replaced is the primary, the primary is switched to the battery 2, and the charge / discharge ratio is reset to 1: 2 (new battery 1: battery 2). As a result, the battery 2 is used twice as often as the new battery 1 starting from the current charge / discharge count (50 times). That is, only the new battery 1 is used (charged / discharged) until the ratio of the number of times of charging / discharging becomes 1: 2. And when it becomes the relationship of the ratio of 1: 2, the new battery 1 and the battery 2 will be used alternately maintaining the relationship of the said ratio.

  Thereafter, when the number of times of charging / discharging of the battery 2 becomes nearly 100 times, the battery 2 is replaced with another new battery (referred to as a new battery 2). Then, this time, the primary is switched to the new battery 1 and the ratio of the number of charge / discharge times is reset to 2: 1 (new battery 1: new battery 2).

  Thus, when the battery to be replaced is the primary, the primary is switched to the other battery, and the charge / discharge ratio is reset.

(2) When a non-primary battery is replaced due to a failure Next, a case where a non-primary battery is replaced due to a failure will be described.

  A non-primary battery is used at a frequency half that of a primary battery. Thus, if there is no accident, a non-primary battery will not be replaced at the end of its life prior to the primary battery. A non-primary battery is replaced before a primary battery when it fails for some reason.

  FIG. 14 is a diagram illustrating an operation when a battery that is not primary is replaced due to a failure while two systems of batteries are used.

  Initially, battery 1 is primary and is used twice as often as battery 2. For example, when the number of times of charging / discharging of the battery 2 is close to 25 times, the number of times of charging / discharging of the battery 1 is close to 50 times.

  Here, it is assumed that the battery 2 has failed for some reason and has been replaced with another new battery (referred to as a new battery 2). In this case, since the battery 2 to be replaced is non-primary, the primary is not changed, and the ratio of the number of charge / discharge remains 2: 1 (battery 1: new battery 2). The charge / discharge count of the battery 1 is updated from the current count (50 times), and the charge / discharge count of the new battery 2 is updated from zero. At that time, only the new battery 2 is used (charged / discharged) until the ratio of the number of times of charging / discharging becomes 2: 1. When the ratio of 2: 1 is reached, the battery 1: new battery 2 is alternately used while maintaining the ratio.

  The battery 1 and the new battery 2 are alternately used, and are replaced with another new battery (referred to as a new battery 1) when the primary battery 1 has reached the charge / discharge count of 100 times.

  As described above, when the battery to be replaced is not the primary, the primary is not changed, and two batteries are used at the currently set charge / discharge ratio.

(3) When the primary battery is replaced due to a failure Next, the case where the primary battery is replaced due to a failure rather than a life will be described.

  FIG. 15 is a diagram showing an operation when the primary battery is replaced due to a failure while using two systems of batteries.

  Initially, battery 1 is primary and is used twice as often as battery 2. For example, when the number of times of charging / discharging of the battery 2 is close to 30, the number of times of charging / discharging of the battery 1 is close to 60 times.

  Here, it is assumed that the battery 1 has failed for some reason before reaching the lifetime of 100 times and has been replaced with another new battery (referred to as a new battery 1). Since the battery 1 to be replaced is the primary, the primary is switched to the battery 2 and the charge / discharge ratio is reset to 1: 2 (new battery 1: battery 2).

  When the battery 1 is replaced with the new battery 1, since the battery 2 is already used, only the new battery 1 is used (charged / discharged) until the charge / discharge ratio becomes 1: 2. And when it becomes the relationship of the ratio of 1: 2, the new battery 1 and the battery 2 will be used alternately maintaining the relationship of the said ratio.

  As described above, when the battery to be replaced is the primary and the cause of the replacement is not a life but a failure, the ratio of the number of charge and discharge is reset according to the primary change. At that time, only the new battery is used until the relationship between the new battery after replacement and the primary battery corresponds to the ratio.

  As can be seen from the cases (1) to (3) above, when one of the two batteries is replaced, the number of times of charging / discharging the new battery is the other in order to use the other battery quickly. The charge / discharge ratio is reset so as to be less than the battery. Thereby, even after the replacement, the operation can be continued by efficiently using the two batteries.

  According to at least one embodiment described above, in the configuration in which the car is operated using the power of the battery, even if the battery life or failure occurs, the operation is safely continued without causing trouble to the passengers. It is possible to provide a contactless power feeding system for an elevator that can be used.

  In each of the above embodiments, the case where two batteries are provided in the car has been described. However, more batteries may be provided in the car and these may be selectively used. Also in this case, the same effect as described above can be obtained by setting the ratio of the number of times of charging / discharging for each battery so that the replacement times do not overlap, and controlling the charging / discharging operation of each battery so as to maintain the ratio. Can do.

  In short, several embodiments of the present invention have been described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 10 ... Hoistway, 11 ... Ride car, 12 ... Counterweight, 13 ... Main rope, 14 ... Hoisting machine, 14a ... Main sheave, 14b ... Deflection sheave, 15 ... Elevator control device, 16 ... Car control device, 17 ... Car operation panel, 17a ... destination floor button, 17b ... door open button, 17c ... door close button, 18a, 18b, 18c ... landing call button, 20 ... power feeding device, 21 ... power receiving device, 22 ... battery device, 31, 32 50, battery, 33, battery control device, 34, 37 ... charging circuit, 35, 36, 38, 39 ... switch, 41, 42 ... counter, 43 ... battery remaining amount evaluation unit, 44 ... call generation interval evaluation unit, 45 ... Table storage unit, S11, S13 ... Charging permission signal, S12, S14 ... Discharging permission signal, S15, S16 ... Battery information, S17 ... First charging request No., S18 ... second charging request signal, S19 ... operating state information, S20 ... power supply start signal, S21 ... control signal for car operation panel, S22 ... operation signal for each button on car operation panel, S23 ... for hall call button Control signal, S24 ... hall call button operation signal, S31, S32 ... unusable signal, S33 ... battery exchange signal, S34 ... exchange completion signal.

Claims (9)

In an elevator contactless power supply system that supplies power to a passenger car without contact,
At least two batteries for storing power fed to the car;
A first control device for controlling the operation of the car;
A second control device configured to bias and set a ratio of the number of times of charging / discharging with respect to each of the batteries so as not to overlap, and to control a charging / discharging operation of each of the batteries so as to maintain the ratio. and,
The second control device includes:
When any of the above batteries is replaced, the ratio of the number of times of charging / discharging with respect to the battery after replacement and another battery is reset according to the ratio of the number of times of charging / discharging set for the battery to be replaced. An elevator non-contact power feeding system characterized by that. The second control device includes:
When the ratio of the number of times of charging / discharging with respect to the battery to be replaced is set higher than that of the other battery, the replacement battery and the other are used so that the other battery is preferentially used after replacement. non-contact power supply system for an elevator according to claim 1, wherein the reconfiguring the ratio of the charge and discharge times for the battery. The second control device includes:
When the ratio of the number of times of charging / discharging with respect to the battery to be replaced is set lower than that of the other battery, the other battery is preferentially used similarly to the ratio before replacement. Item 2. A contactless power supply system for an elevator according to item 1 . The second control device includes:
Measuring means for measuring the number of times of charging / discharging of each battery,
A first threshold value that is defined as a determination criterion for the non-dischargeable / required charge, and a remaining amount evaluation unit that evaluates the remaining amount of each battery by comparing with the first threshold value,
When the remaining amount of each battery evaluated by the remaining amount evaluating means is greater than the first threshold value, each battery is determined based on the number of charge / discharge times of each battery and the ratio measured by the measuring means. The non-contact electric power feeding system of the elevator of Claim 1 which selects the battery made into discharge object from among. The second control device includes:
When any remaining amount of each of the batteries evaluated by the remaining amount evaluation means is less than the first threshold value, a battery other than the battery is selected as a discharge target from the batteries and the first control is performed. Report that the device needs to be charged,
The first control device includes:
5. The contactless power feeding system for an elevator according to claim 4, wherein the car is moved to a power feeding floor at a predetermined timing in response to a notification from the second control device. The second control device includes:
When the remaining amount of each of the batteries evaluated by the remaining amount evaluating means is less than the first threshold value, the first control device is notified that emergency charging is required. And
The first control device includes:
In response to a notification from the second control device, after stopping the passenger car at the nearest floor and getting off the passenger, prohibiting call registration and moving the passenger car to the power supply floor. The elevator non-contact power feeding system according to claim 4 . The remaining amount evaluation means
It has a second threshold value that is defined as a criterion for determining whether discharge is possible or necessary to charge,
The second control device includes:
When the remaining amount of each of the batteries evaluated by the remaining amount evaluating means is less than the second threshold value, the first control device is notified that charging is necessary,
The first control device includes:
5. The contactless power feeding system for an elevator according to claim 4, wherein the car is moved to a power feeding floor at a predetermined timing in response to a notification from the second control device. The second control device includes:
It has a table in which the relationship between the time zone and traffic demand is set in advance,
8. The table according to claim 7, wherein the second threshold is raised in a time zone when traffic demand is higher than normal with reference to the table, and the second threshold is lowered in a time zone when traffic demand is lower than normal. Elevator contactless power supply system. The second control device includes:
Call generation interval evaluation means for evaluating the occurrence interval of hall calls for a predetermined number of times,
When the previous hall call occurrence interval obtained by the call occurrence interval evaluation means is compared with the current hall call occurrence interval, and the current hall call occurrence interval is longer than the time obtained by multiplying the previous hall call occurrence interval by a predetermined amount. Because the traffic demand is decreasing, the second threshold is lowered, and the traffic demand increases if the previous landing call occurrence interval is longer than the time that has been multiplied by the current landing call occurrence interval. The elevator non-contact power feeding system according to claim 7, wherein the second threshold value is raised by determining that the second power supply is operating.

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