JP5637643B2 - Weight variable elevator - Google Patents

Description

  Embodiments described herein relate generally to a weight variable elevator.

  A so-called elevator with a counterweight is a hoisting machine that lifts and lowers a car in a hoistway by moving the car and counterweight connected via a rope up and down in opposite directions. It is possible to make it. During the operation of this lift-type elevator, when the heavier one of the rider and the counterweight is lifted, more hoisting machine power is required, and the closer the weight of the rider and the counterweight, the more energy-saving operation. Enable. In such a lift-type elevator, the weight of the counterweight is generally set so as to be suspended with the car when the car has a predetermined load (for example, 1/2 of the maximum load). For this reason, the counterweight is heavier when there are no passengers in the car, and the car is heavier when the car is full. In this way, the car and the counter weight change the state of suspension depending on the number of passengers in the car. Therefore, some conventional elevators detect the weight of the car and detect the loaded weight. In some cases, the weight of the counterweight is adjusted in real time using a liquid.

Japanese Patent No. 4849651

  However, when the weight of the counterweight is adjusted in real time, it takes time to adjust the weight every time the user gets on and off, and there is a possibility that the power consumption increases. For this reason, it has been very difficult to appropriately adjust the weight of the counterweight without adjusting it more than necessary.

  The present invention has been made in view of the above, and an object thereof is to provide a weight variable elevator that can change the weight of a counterweight at an appropriate timing.

  The weight variable elevator according to the embodiment includes a car, a counter weight, a weight changing unit, a usage information acquisition unit, and a weight control unit. The car is arranged in the hoistway. The counterweight is disposed in the hoistway and is connected to the car via a main rope wound around the hoisting machine. The weight changing means changes the weight of the counter weight. The usage information acquisition means acquires usage information indicating a usage status of a user who gets on the car. The weight control means generates a counter weight weight change pattern based on the usage information acquired by the usage information acquisition means, and causes the weight change means to change the weight of the counter weight based on the generated change pattern. is there.

FIG. 1 is a schematic diagram of a weight variable elevator according to the first embodiment. FIG. 2 is a block diagram showing the configuration of the weight variable elevator shown in FIG. FIG. 3 is a schematic view of a weight variable elevator according to the second embodiment. FIG. 4 is a schematic view of a weight variable elevator according to the third embodiment.

  Hereinafter, an embodiment of a weight variable elevator according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

Embodiment 1
FIG. 1 is a schematic diagram of a weight variable elevator according to the first embodiment. The weight variable elevator 1 according to the first embodiment is configured as a so-called lift type elevator in which a main rope 11 connects a car 5 capable of moving up and down a hoistway 3 and a counterweight 10 as a counterweight. . The weight variable elevator 1 includes a hoistway 3, a car 5, a counterweight 10, a main rope 11, an elevating drive device 12, a landing 8, and a control device 30. As the car 5 moves up and down, the car 5 can move between the landings 8.

  Among these, the hoistway 3 is provided along the vertical direction of the building provided with the weight variable elevator 1, and is provided over a plurality of floors in the building. Moreover, the raising / lowering drive apparatus 12, the control apparatus 30, etc. are provided in the machine room 14 etc. which are located in the vertical direction upper side of the hoistway 3 where the car 5 raises / lowers, for example. The car 5 is a structure for a user to ride on or load, and is arranged in the hoistway 3 so that the hoistway 3 can be raised and lowered.

  The counterweight 10 is connected to the car 5 via the main rope 11 and disposed in the hoistway 3, and is provided as a counterweight capable of moving up and down the hoistway 3 in conjunction with the car 5. Further, the main rope 11 is hung on the main sheave 16 and the deflecting sheave 17 of the hoisting machine 15 of the lifting drive device 12 provided at the upper part of the hoistway 3, and the car 5 is connected to one end and the other end The counterweight 10 is connected to the two to connect them.

  The elevating drive device 12 includes an electric motor 18 that is a power source, and a main sheave 16 that is coupled to the electric motor 18, and includes a hoisting machine 15 that electrically winds up the main rope 11 with power generated by the electric motor 18. The drive control is possible by the control device 30. The landing 8 is provided on each elevator stop floor where the car 5 can be landed, and is a place for the user to get on and off the car 5 and to load and unload luggage on the car 5. ing.

  In addition, the car 5 is provided with a load sensor 6 that is a load detecting means for detecting a load in the car 5. The load sensor 6 can detect the entire load in the car 5 such as the weight of the entire user in the car 5.

  The control device 30 is electrically connected to various parts of the various sensors, detectors, and weight variable elevators 1, and is configured so that the operation of each part can be comprehensively controlled. The car 5 is connected to the control device 30 by a tail cord 7 having a control cable, a power cable, and the like.

  Furthermore, the weight variable elevator 1 includes a weight transfer device 20 that is a weight changing unit that can change the weight of the counterweight 10. The weight transfer device 20 is located at the uppermost part of the lifting / lowering range of the counterweight 10 in the hoistway 3 and can be operated by a control signal from the control device 30 to change the weight of the counterweight 10. It has become.

  Specifically, the counterweight 10 includes a main weight 25 and a subweight 26, and the subweight 26 is configured to be detachable from the main weight 25, and a plurality of layers are stacked above the main weight 25. Yes. The weight transfer device 20 is configured to be able to hold the sub-weights 26, and when the counterweight 10 is located at the uppermost part of the lifting / lowering range, a desired number of sub-weights 26 can be added as necessary. The weight of the counterweight 10 is changed by attaching to and detaching from the main weight 25.

  FIG. 2 is a block diagram showing the configuration of the weight variable elevator shown in FIG. The control device 30 includes a processing unit having a CPU (Central Processing Unit) connected to each other by a bidirectional common bus of a normal format, and a ROM (Read Only Memory) that stores a predetermined control program and the like in advance. A RAM (Random Access Memory) for temporarily storing calculation results of the CPU, a backup RAM for storing information such as map data prepared in advance, specifications of the weight variable elevator 1, and a microcomputer and a drive circuit having an input / output port device I have. The control device 30 is connected to the load sensor 6, the lifting drive device 12, the weight transfer device 20, and the like, and the control device 30 can exchange signals with these devices.

  The processing unit of the control device 30 configured in this way operates the elevator such as controlling the lifting drive device 12 to perform the lifting control of the car 5 and controlling the opening and closing of the door (not shown). A driving control unit 31 that is a driving control unit that performs control, a usage information acquisition unit 32 that is a usage information acquisition unit that acquires usage information indicating a usage status of a user who is on the car 5, and a usage information acquisition unit 32 Weight control is weight control means for generating a change pattern of the weight of the counterweight 10 based on the usage information acquired in step S3, and causing the weight transfer device 20 to change the weight of the counterweight 10 based on the generated change pattern. Part 33. A storage device such as a RAM is also provided as a storage unit 34 that is a storage unit that stores the usage information acquired by the usage information acquisition unit 32.

  The weight variable elevator 1 according to the first embodiment is configured as described above, and the operation thereof will be described below. When the weight variable elevator 1 is in operation, an operation panel (not shown) in which the user of the weight variable elevator 1 is installed in the car 5 or an operation panel installed in the landing 8 on each floor where the car 5 stops ( An instruction to move the car 5 is given by performing an input instruction operation on (not shown). That is, the movement instruction of the car 5 is performed by performing an input operation on a call button (not shown) provided on the operation panel, and input information to the call button is transmitted from each operation panel as an electrical signal to the control device 30. The call registration is performed in the control device 30. In response to this call registration, the control device 30 controls the hoisting machine 15 by the operation control unit 31.

  That is, the operation control unit 31 drives the hoisting machine 15 in accordance with the movement instruction signal transmitted from the operation panel. As a result, the length of the portion of the main rope 11 wound around the main sheave 16 on the side of the car 5 and the length of the portion on the side of the counterweight 10 changes with the hoisting machine 15 as a reference. The car 5 and the counterweight 10 that are suspended by the main rope 11 are raised and lowered according to the change in the length of the main rope 11 with respect to the hoisting machine 15.

  Further, since the main rope 11 is also wound around the deflecting sheave 17, both the portion on the car 5 side and the portion on the counterweight 10 side are both hoistways from the machine room 14 side. 3 is almost vertically inserted. For this reason, when raising and lowering the car 5 and the counterweight 10 by driving the hoisting machine 15, the hoisting machine 15 and the main rope 11 can be raised and lowered without an unnecessary large load acting.

  When the car 5 is raised and lowered, the car 5 and the counterweight 10 are lifted and lowered in the hoistway 3 in this way, but the directions are opposite to each other. As a result, the hoisting machine 15 can raise and lower the car 5 using the weight of the counterweight 10 or the energy at the time of raising and lowering the counterweight 10, so that the car 5 can be raised and lowered with relatively small power. Is possible.

  Here, the hoisting machine 15 can raise and lower the car 5 with small power as the weight difference between the car 5 and the counterweight 10 becomes smaller. On the other hand, the weight of the car 5 varies depending on the number of users in the car 5. Therefore, in the weight variable elevator 1 according to the first embodiment, the weight of the counterweight 10 is changed as necessary based on the weight of the car 5. The weight of the counterweight 10 is changed by controlling the weight transfer device 20 by the weight control unit 33 of the control device 30 and operating the weight transfer device 20.

  The weight change of the counter weight 10 by the weight transfer device 20 is performed by attaching / detaching the sub weight 26 by the weight transfer device 20 and adjusting the number of sub weights 26 placed on the main weight 25. That is, the counterweight 10 increases in weight according to the weight of the subweight 26 placed on the main weight 25, and therefore the counterweight is intended to reduce the weight difference between the car 5 and the counterweight 10. When the weight of 10 is changed, the weight can be changed by an amount corresponding to the weight of the mounted subweight 26.

  In this way, the weight control unit 33 that changes the weight of the counterweight 10 with respect to the weight transfer device 20 generates a change pattern that is a pattern such as a timing at which the weight of the counterweight 10 is changed or a weight to be changed. Then, the weight is changed based on the generated change pattern. This change pattern is generated based on the usage information indicating the usage status of the user boarding the car 5.

  The usage information used for generating the change pattern is estimated by the usage information acquisition unit 32 based on the detection result of the load sensor 6 installed in the car 5. That is, since the load sensor 6 can detect the entire load in the car 5, by acquiring the load detected by the load sensor 6, the load sensor 6 can detect the total load of the users who have boarded the car 5. You can guess how many people there are. For this reason, the usage information acquisition unit 32 acquires the information on the load detected by the load sensor 6 via the tail cord 7 and uses the user who rides on the car 5 based on the acquired information on the load. Estimate information.

  The usage information estimated and acquired by the usage information acquisition unit 32 is transmitted to the storage unit 34 and stored in the storage unit 34. In the storage unit 34, the usage information is stored in real time as usage information based on the load detected by the load sensor 6. When the change pattern is generated by the weight control unit 33, the change pattern is generated based on the usage information stored in the storage unit 34. Specifically, the weight control unit 33 organizes the usage information by day of the week or time zone, calculates average usage information for each day of the week or time zone, and generates a change pattern for each day of the week or time zone. That is, the weight control unit 33 generates a change pattern for each day of the week or time period based on the usage information for each day of the week or time period stored in the storage unit 34.

  The weight control unit 33 that has generated the change pattern causes the weight transfer device 20 to change the weight of the counter weight 10 based on the generated change pattern. That is, the weight transfer device 20 is made to transfer the sub weights 26 so that the weight according to the change pattern is obtained at the timing according to the change pattern.

  Since this change pattern is a transfer pattern of the subweights 26 that is set so that the total weight of the car 5 and the total weight of the counterweight 10 are close to each other on the day of the week and the time zone, By transposing 26, the difference in weight between the car 5 and the counterweight 10 becomes relatively small on any day of the week or time zone.

  In addition, when the weight of the counterweight 10 is changed in this way, when the number of users boarding the car 5 is extremely greater or less than the average value for each day of the week or time zone, The weight difference between the car 5 and the counterweight 10 may increase. In this case, the hoisting machine 15 is adjusted so as not to be loaded by changing acceleration, deceleration, jerk, and rated speed when the car 5 is raised and lowered.

  The weight variable elevator 1 according to the first embodiment includes the weight transfer device 20 that can change the weight of the counterweight 10, and the weight of the counterweight 10 is determined based on the usage information of the user boarding the car 5. Since a change pattern is generated and the weight of the counterweight 10 is changed based on the change pattern, it is possible to suppress the weight of the counterweight 10 from being adjusted more frequently than necessary. As a result, the weight of the counterweight 10 can be changed at an appropriate timing.

  In addition, a load sensor 6 for detecting the load in the car 5 is provided, and the usage information of the user is estimated based on the load detected by the load sensor 6, so a change pattern corresponding to the usage status of the user is provided. Can be generated more accurately. As a result, the weight of the counterweight 10 can be changed at a more appropriate timing.

  In addition, a storage unit 34 for storing user usage information is provided, and the change pattern of the weight of the counterweight 10 is generated for each time zone based on the usage information for each time zone stored in the storage unit 34. The change pattern according to the user's usage situation can be generated more accurately. As a result, the weight of the counterweight 10 can be changed at a more appropriate timing.

[Embodiment 2]
The weight variable elevator 1 according to the second embodiment has substantially the same configuration as the weight variable elevator 1 according to the first embodiment, but is characterized in that it includes a camera that images a user in the car 5. Since other configurations are the same as those of the first embodiment, the description thereof is omitted and the same reference numerals are given.

  FIG. 3 is a schematic view of a weight variable elevator according to the second embodiment. Similar to the weight variable elevator 1 according to the first embodiment, the weight variable elevator 1 according to the second embodiment holds the subweight 26 of the counterweight 10 and can be attached to and detached from the main weight 25. A weight transfer device 20 is provided.

  Further, in the weight variable elevator 1 according to the second embodiment, the car 5 is provided with a car camera 40 that is a camera for imaging a user in the car 5. The car camera 40 is constituted by, for example, a CCD (Charge Coupled Device) camera or the like, and can output image information as an electrical signal. The car camera 40 configured as described above is attached to the ceiling or the like of the car 5 so that the entire car 5 can be imaged at any time, and the control device 30 is connected via the tail cord 7. Is electrically connected. Thereby, the image information in the car 5 imaged by the car camera 40 can be transmitted to the control device 30 in real time as an electric signal.

  The weight variable elevator 1 according to the second embodiment is configured as described above, and the operation thereof will be described below. When the weight variable elevator 1 according to the second embodiment is operated, a change pattern is generated based on the usage information of the user who is on the car 5, similarly to the operation of the weight variable elevator 1 according to the first embodiment. Then, the sub-weights 26 are transshipped based on the generated change pattern.

  In the weight variable elevator 1 according to the second embodiment, the usage information used for generating the change pattern includes not only the load information detected by the load sensor 6 but also the information on the number of users imaged by the car camera 40. Based on this, the usage information acquisition unit 32 estimates the information. That is, since the car camera 40 is arranged so as to be able to take an image of the inside of the car 5, the approximate number of users who have boarded the car 5 is determined based on the image information taken by the car camera 40. You can guess the number of people. For this reason, the usage information acquisition unit 32 acquires the image information captured by the car camera 40 in addition to the load information detected by the load sensor 6 via the tail cord 7, and the acquired image information and the load Based on the information, the usage information of the user boarding the car 5 is estimated.

  The usage information estimated and acquired by the usage information acquisition unit 32 is transmitted to the storage unit 34, stored in the storage unit 34, and based on the usage information for each day of the week or time period stored in the storage unit 34, the weight control unit 33, a change pattern is generated for each day of the week or time zone. The weight control unit 33 changes the weight of the counter weight 10 by causing the weight transfer device 20 to transfer the sub weight 26 based on the generated change pattern. As a result, the car 5 is moved up and down in a state where the difference in weight between the car 5 and the counterweight 10 is relatively small on any day of the week or time zone.

  The weight variable elevator 1 according to the second embodiment described above includes a car camera 40 that images a user in the car 5 in the car 5, and user usage information is imaged by the car camera 40. Since it estimates based on image information, the change pattern according to a user's utilization condition can be produced | generated more accurately. As a result, the weight of the counterweight 10 can be changed at a more appropriate timing.

[Embodiment 3]
The weight variable elevator 1 according to the third embodiment has substantially the same configuration as the weight variable elevator 1 according to the first embodiment, but is characterized in that it includes a camera that captures a user who stands by at the landing 8. Since other configurations are the same as those of the first embodiment, the description thereof is omitted and the same reference numerals are given.

  FIG. 4 is a schematic view of a weight variable elevator according to the third embodiment. Similarly to the weight variable elevator 1 according to the first embodiment, the weight variable elevator 1 according to the third embodiment holds the subweight 26 of the counterweight 10 and can be attached to and detached from the main weight 25. A weight transfer device 20 is provided.

  Furthermore, in the weight variable elevator 1 according to the third embodiment, a landing camera 50 that is a camera that captures a user standing by at the landing 8 is provided at the landing 8 where the passenger rides on and off the car 5. This landing camera 50 is arranged at each landing 8 where the car 5 stops when the weight variable elevator 1 is operated, and each landing camera 50 images the vicinity of the entrance / exit for the riding car 5 at each landing 8 as needed. It is attached to the ceiling of each platform 8 so that it can be done. The landing camera 50 of each landing 8 is electrically connected to the control device 30, and image information of the landing 8 captured by the landing camera 50 can be transmitted to the control device 30 in real time as an electric signal. Yes.

  The weight variable elevator 1 according to the third embodiment is configured as described above, and the operation thereof will be described below. When the weight variable elevator 1 according to the third embodiment is operated, a change pattern is generated based on the usage information of the user who is on the car 5, similarly to the operation of the weight variable elevator 1 according to the first embodiment. Then, the sub-weights 26 are transshipped based on the generated change pattern.

  In the weight variable elevator 1 according to the third embodiment, the usage information used for generating the change pattern is the usage waiting on the landing 8 captured by the landing camera 50 in addition to the load information detected by the load sensor 6. Based on the information on the number of persons, the usage information acquisition unit 32 estimates the information. That is, since the landing camera 50 is arranged so as to be able to capture the landing 8, the approximate number of users who have boarded the car 5 is estimated from the image information captured by the landing camera 50. be able to.

  In other words, at the landing 8, people who will enter the car 5 and people who got off the car 5 will come and go, so by calculating the number of these people based on the image information captured by the landing camera 50, The approximate number of users who have boarded the car 5 can be estimated. For this reason, the usage information acquisition unit 32 estimates the number of users from the image information captured by the landing camera 50, information on the number of users captured by the landing camera 50, and the load detected by the load sensor 6. And the usage information of the user boarding the car 5 is estimated.

  The usage information estimated and acquired by the usage information acquisition unit 32 is transmitted to the storage unit 34, stored in the storage unit 34, and based on the usage information for each day of the week or time period stored in the storage unit 34, the weight control unit 33, a change pattern is generated for each day of the week or time zone. The weight control unit 33 changes the weight of the counter weight 10 by causing the weight transfer device 20 to transfer the sub weight 26 based on the generated change pattern. As a result, the car 5 is moved up and down in a state where the difference in weight between the car 5 and the counterweight 10 is relatively small on any day of the week or time zone.

  The weight variable elevator 1 according to the third embodiment includes the landing camera 50 that captures a user who stands by at the landing 8, and the usage information of the user is based on image information captured by the landing camera 50. Therefore, it is possible to generate a change pattern according to the usage status of the user with higher accuracy. As a result, the weight of the counterweight 10 can be changed at a more appropriate timing.

[Modification]
It should be noted that the change pattern used for transshipment of the subweight 26 is preferably updated as needed according to the usage information. Specifically, the usage information acquisition unit 32 periodically acquires usage information based on the detection result of the load sensor 6 and the like after the change pattern is generated by the weight control unit 33. The weight control unit 33 compares the usage information newly acquired by the usage information acquisition unit 32 with the usage information already acquired by the usage information acquisition unit 32. A new change pattern is generated based on the acquired usage information and the acquired usage information.

  For example, the weight control unit 33 compares the new usage information of the current time with the usage information of the same time period stored in the storage unit 34, and when both usage information changes, Both pieces of usage information are averaged, and a change pattern for the time zone is newly generated based on the averaged usage information. The weight control unit 33 causes the weight transfer device 20 to transfer the sub-weight 26 based on this new change pattern, so that the weight of the counter weight 10 according to the latest usage information in that time zone. Can be changed. As a result, the weight of the counterweight 10 can be changed to an appropriate weight at a more appropriate timing.

  In the weight variable elevator 1 according to the second embodiment, the usage information is estimated based on the image information captured by the car camera 40 and the load information detected by the load sensor 6. You may estimate using only the image information imaged with the camera 40. FIG. Similarly, in the weight variable elevator 1 according to the third embodiment, usage information is estimated based on image information captured by the landing camera 50 and load information detected by the load sensor 6. You may estimate using only the image information imaged by 50. FIG. Since it is possible to estimate the usage information only with the image information obtained by capturing the user, by estimating the usage information using only the image information captured by the car camera 40 and the landing camera 50 as described above, Manufacturing costs can be reduced.

  In the weight variable elevator 1 according to the third embodiment, the usage information estimated based on the image information captured by the landing camera 50 is temporarily stored in the storage unit 34 and then used to generate a change pattern. Based on image information captured by the camera 50, the weight of the counterweight 10 may be changed in real time. That is, from the image information captured by the landing camera 50, it is possible to estimate the number of users getting into the car 5 from now on, so this estimated number of people is used to calculate the weight of the counterweight 10 that is required most recently. be able to. Therefore, by changing the weight of the counterweight 10 based on the image information captured by the landing camera 50, the difference in weight between the car 5 and the counterweight 10 can be reduced in real time.

  Moreover, in the weight variable elevator 1 mentioned above, although the load sensor 6, the car camera 40, and the landing camera 50 are used for estimation of utilization information, you may estimate utilization information other than these. Any means can be used as long as it can appropriately estimate the usage information of the user of the car 5.

  Moreover, the weight variable elevator 1 may combine suitably the structure, control, etc. which are used in embodiment mentioned above and the modification, or may use other than the structure and control mentioned above. Regardless of the configuration and control of the weight variable elevator 1, a change pattern of the weight of the counterweight 10 is generated based on the usage information of the user who rides in the car 5, and the weight of the counterweight 10 is generated based on this change pattern. The weight of the counterweight 10 can be changed at an appropriate timing.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

1 Weight variable elevator 3 Hoistway 5 Car 6 Load sensor (load detection means)
7 Tail cord 8 Platform 10 Counterweight 11 Main rope 12 Lifting drive device 14 Machine room 15 Hoisting machine 16 Main sheave 17 Warp sheave 18 Electric motor 20 Weight transfer device (weight changing means)
25 Main Weight 26 Sub Weight 30 Control Device 31 Operation Control Unit 32 Usage Information Acquisition Unit (Usage Information Acquisition Unit)
33 Weight control unit (weight control means)
34 Storage section (storage means)
40 ride car camera 50 landing camera

Claims (6)

A car placed in the hoistway,
A counterweight disposed in the hoistway and coupled to the car via a main rope wound around a hoist;
Weight changing means for changing the weight of the counterweight;
Usage information acquisition means for acquiring usage information indicating a usage status of a user boarding the car;
A weight that generates a change pattern of the weight of the counterweight based on the usage information acquired by the usage information acquisition means, and that causes the weight change means to change the weight of the counterweight based on the generated change pattern Control means;
Equipped with a,
If the weight difference between the car and the counterweight is large, at least one of acceleration, deceleration, jerk, and rated speed when the car is raised and lowered is taken as the car and the counterweight. A weight variable elevator characterized in that a load on the hoisting machine is reduced by changing the weight difference when the difference in weight is small . Load detecting means for detecting the load in the car,
The weight variable elevator according to claim 1, wherein the usage information acquisition unit estimates the usage information based on a load detected by the load detection unit. The car is equipped with a car camera that images the users in the car,
The weight variable elevator according to claim 1, wherein the usage information acquisition unit estimates the usage information based on information on the number of users captured by the car camera. The usage information acquisition means periodically acquires the usage information after generating the change pattern,
The weight control unit compares the usage information newly acquired by the usage information acquisition unit with the usage information acquired by the usage information acquisition unit, and if there is a change, the newly acquired The weight variable elevator according to any one of claims 1 to 3, wherein the change pattern is newly generated based on usage information and the acquired usage information. A storage unit for storing the usage information acquired by the usage information acquisition unit;
The weight variable elevator according to any one of claims 1 to 4, wherein the weight control unit generates the change pattern for each time zone based on the usage information for each time zone stored in the storage unit. A platform camera that captures a user waiting at the platform to get on and off the car;
The weight variable elevator according to claim 1, wherein the usage information acquisition unit estimates the usage information based on information on the number of users captured by the landing camera.

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