Elevator control system, elevator control device, and elevator control method

Abstract

To control an elevator according to a situation when the elevator shares an emergency power supply with other facilities.SOLUTION: An elevator control system that controls an operation of an elevator includes a power supply information reception unit that acquires information indicating whether or not the elevator is receiving power supply from an emergency power supply, a facility operation state reception unit that acquires an operation state of another facility that receives power supply from the emergency power supply, and an elevator operation restriction unit that restricts an operation of the elevator on the basis of the operation state of the other facility when the elevator is receiving power supply from the emergency power supply.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an elevator control system, an elevator control device, and an elevator control method. [Background technology]

[0002] Japanese Patent Application Laid-Open Publication No. 2015-013735 (Patent Document 1) describes a conventional technology for elevator operation during a power outage. This publication states that "the conventional technology has room for further improvement, for example, in terms of operation during a power outage." It also states that "an elevator system according to an embodiment includes an elevator and a control device. The control device is capable of switching between normal operation when the power source is healthy and power outage operation, in which the elevator operates at its rated speed using power from a building-side power storage device during a power outage. The control device is capable of switching between power outage operation without power outage restrictions and power outage restricted operation as the power outage operation. The power outage restricted operation is equivalent to the normal operation during a period after a power outage of the power source and before the minimum power outage operation time has elapsed. The power outage restricted operation is operation in which the elevator is operated with restrictions on the floors at which it can stop after the minimum power outage operation time has elapsed and the remaining power storage amount is equal to or greater than the operable power storage amount." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2015-013735 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional technologies perform control according to the remaining amount of stored electricity in the storage device, but do not take into consideration the case where the storage device also supplies power to other facilities. For example, if storage batteries or electric vehicles are used as emergency power sources in the event of a disaster, the emergency power sources are likely to also supply power to pumps (for water, toilets, etc.) that are lifelines.

[0005] An object of the present invention is to perform elevator control according to the situation when an elevator shares an emergency power supply with other equipment. [Means for solving the problem]

[0006] In order to achieve the above object, one representative elevator control system of the present invention is an elevator control system that controls the operation of an elevator, and is characterized by comprising: a power supply information receiving unit that acquires information indicating whether the elevator is receiving power from an emergency power source; an equipment operation status receiving unit that acquires the operation status of other equipment that receives power from the emergency power source; and an elevator operation limiting unit that, when the elevator is receiving power from the emergency power source, limits the operation of the elevator based on the operation status of the other equipment. Furthermore, one representative elevator control device of the present invention is an elevator control device that controls the operation of an elevator, and is characterized by comprising: a power supply information receiving unit that acquires information indicating whether the elevator is receiving power from an emergency power source; an equipment operation status receiving unit that acquires the operation status of other equipment that receives power from the emergency power source; and an elevator operation limiting unit that, when the elevator is receiving power from the emergency power source, limits the operation of the elevator based on the operation status of the other equipment. Furthermore, one representative elevator control method of the present invention is an elevator control method for controlling the operation of an elevator, characterized in that the elevator control device includes a power supply information receiving step for acquiring information indicating whether the elevator is receiving power from an emergency power source, an equipment operation status receiving step for acquiring the operation status of other equipment that receives power from the emergency power source, and an elevator operation restriction step for restricting the operation of the elevator based on the operation status of the other equipment when the elevator is receiving power from the emergency power source. [Effects of the Invention]

[0007] According to the present invention, when an elevator shares an emergency power supply with other equipment, elevator control according to the situation can be realized. Problems, configurations, and effects other than those described above will become clear from the following description of the embodiment. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an explanatory diagram of elevator control according to an embodiment. [Figure 2] Elevator control system configuration diagram [Figure 3] Flowchart showing the processing procedure of the elevator control device [Figure 4] Flowchart showing details of operational status communication [Figure 5] Flowchart explaining the operation of energy-saving operation mode 1 [Figure 6] Flowchart explaining the operation of energy-saving operation mode 2 [Figure 7] Data table of control conditions for operation modes [Figure 8] Example of control when driving direction is restricted (part 1) [Figure 9] Example of control when driving direction is restricted (part 2) [Figure 10] Example of control when driving direction is restricted (part 3) DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment will be described with reference to the drawings. [Example]

[0010] FIG. 1 is an explanatory diagram of elevator control according to an embodiment. The building 30 is equipped with an elevator 70 and other building facilities 50. In this embodiment, for convenience, the facilities installed in the building 30 other than the elevator 70 will be described as the building facilities 50. The building facilities 50 include facilities that constitute lifelines, such as water pumps.

[0011] The elevator 70 is controlled by an elevator control device 60. The building equipment 50 is controlled by a building equipment control device 40. Furthermore, the elevator 70 and the building equipment 50 receive a supply of power via a PCS (Power Conditioner System) 20.

[0012] Under normal circumstances, the PCS 20 uses the commercial power supply 11 as a power source to supply power to the elevator 70 and the building facilities 50. If the commercial power supply 11 becomes unavailable due to a disaster or the like, the PCS 20 supplies power from an emergency power supply to the elevator 70 and the building facilities 50. As the emergency power supply, for example, a storage battery 12 or a battery of an electric vehicle (EV) 13 can be used.

[0013] The PCS 20 outputs power supply information to the elevator control device 60. The power supply information indicates whether the commercial power supply 11 or the emergency power supply is being used. When the emergency power supply is being used, the power supply information also includes the remaining battery charge.

[0014] The elevator control device 60 uses the power supply information and the operating status of other equipment to restrict the operation of the elevator 70. Specifically, when the elevator 70 is supplied with power from an emergency power supply and equipment with a higher priority than the elevator 70 is operating, the elevator control device 60 restricts the operation of the elevator 70.

[0015] Facilities that have a higher priority than the elevator 70 are facilities related to lifelines. Restrictions on the operation of the elevator 70 include, for example, restrictions on the load capacity, speed, and direction of operation. By imposing these restrictions on the operation of the elevator 70, it is possible to reduce power consumption and prioritize the supply of power to lifelines.

[0016] The following describes limitations on the operating direction and power consumption. The elevator 70 is configured so that the car and the counterweight are balanced when, for example, the car is loaded with approximately half the specified maximum load weight. When the load on the car is light, the counterweight becomes relatively heavy, so a force is applied to the car in an upward direction. When the load on the car is heavy, the counterweight becomes relatively light, so a force is applied to the car in a downward direction. When the elevator operates in the opposite direction to the force applied to the car, power consumption increases. Operation in this case is called power running. When the elevator operates in the same direction as the force applied to the car, power consumption decreases and, in some cases, power can be obtained. Operation in this case is called regenerative operation. In this embodiment, the limitation on the operating direction of the elevator 70 is a limitation to regenerative operation.

[0017] 2 is a configuration diagram of an elevator control system. The elevator control system includes a PCS 20, a building equipment control device 40, and an elevator control device 60. The building equipment control device 40 includes an other equipment operation status reception unit 41, a building equipment control unit 42, and an operation status notification unit 43.

[0018] The other equipment operation status receiving unit 41 receives the operation status of other equipment. For example, the other equipment operation status receiving unit 41 can receive the operation status of the elevator 70 from the elevator control device 60.

[0019] The building equipment control unit 42 controls the operation of the building equipment 50. The building equipment control unit 42 can take into consideration the operating status of other equipment when controlling the operation of the building equipment 50. For example, if the elevator 70 is in powered operation with passengers on board, the operation of the building equipment 50 is suppressed until the elevator stops at the next floor and all passengers have disembarked. Although not shown in the figure, the building equipment 50 receives power from the PCS 20.

[0020] The operation status notification unit 43 notifies other facilities of the operation status of the building facility 50. For example, the operation status notification unit 43 notifies the elevator control device 60 of the operation status of the building facility 50. The information to be notified includes information identifying the building facility 50 and whether or not it is operating. Alternatively, the information may indicate the degree of operation, rather than whether or not it is operating.

[0021] The elevator control device 60 has a power supply information receiving unit 61, a car load factor determining unit 62, a demand forecasting unit 63, an other equipment operation status receiving unit 64, an operation status notification unit 65, an operation mode determining unit 67, an elevator control unit 68, and an announcement control unit 69.

[0022] The power supply information receiving unit 61 is a processing unit that receives power supply information from the PCS 20. The power supply information indicates whether or not an emergency power supply is being used. If an emergency power supply is being used, the power supply information also includes the remaining battery power.

[0023] The car load factor determination unit 62 receives the car load factor from the car load factor measurement sensor 72 and compares the car load factor with a predetermined threshold. The car load factor measurement sensor 72 measures the weight of people and objects in the car as the load weight, and outputs the ratio of the load weight to the maximum load weight as the car load factor. The car load factor determination unit 62 determines whether the car load factor is less than a first threshold and whether the car load factor is equal to or greater than a second threshold. Note that the first threshold is smaller than the second threshold.

[0024] The demand forecasting unit 63 forecasts the demand for various facilities in the building 30. Specifically, the demand forecasting unit 63 is provided with demand forecast data indicating fluctuations in demand for various facilities by time of day, and outputs the demand forecast values ​​for various facilities by referencing the demand forecast data based on current time information. The demand forecasting unit 63 may also output the peak time of demand for each facility. Note that the demand forecast data may take into account not only the time of day but also the day of the week, holidays, etc.

[0025] The other facility operation status receiving unit 64 receives the operation status of other facilities. For example, the other facility operation status receiving unit 64 can receive the operation status of the building facility 50 from the building facility control device 40.

[0026] The operation status notification unit 65 notifies other equipment of the operation status of the elevator 70. For example, the operation status notification unit 65 notifies other equipment whether or not the elevator 70 is in power running. In addition, the operation status notification unit 65 can be configured to notify whether or not operation is being restricted.

[0027] The operation mode determination unit 67 determines the operation mode of the elevator 70. The operation modes include a normal operation mode, an energy-saving operation mode 1, and an energy-saving operation mode 2. The normal operation mode is an operation mode when the elevator operates by receiving power from the commercial power source 11, and there are no restrictions on operation. The energy-saving operation mode 1 is an operation mode when the elevator operates by receiving power from the emergency power source, and there are restrictions on either or both of the speed and the load capacity of the car, but there are no restrictions on the operation direction. The energy-saving operation mode 2 is an operation mode when the elevator operates by receiving power from the emergency power source, and there are no restrictions on the operation direction.

[0028] The operation mode determination unit 67 selects an operation mode based on the power supply information received by the power supply information receiving unit 61, the determination result by the car load factor determination unit 62, the prediction result by the demand forecasting unit 63, and the operation status of the building equipment 50 received by the other equipment operation status receiving unit 64. The operation mode determination unit 67 also references the building equipment power consumption 66a and priority information 66b when determining the operation mode. The building equipment power consumption 66a is data indicating how much power each piece of equipment in the building 30 consumes during operation. Therefore, by referring to the operation status of the building equipment 50 and the building equipment power consumption 66a, it is possible to determine how much power each piece of equipment is consuming at that time. The priority information 66b indicates the priority relationship between the building equipment 50 and the elevator 70. For example, a pump related to a lifeline has a higher priority than the elevator 70. On the other hand, displays and the like for decoration or spatial presentation have a lower priority than the elevator 70.

[0029] When power is being supplied from the emergency power supply, other prioritized equipment is not in operation, and it is predicted that there is little demand for the other prioritized equipment, the operation mode determination unit 67 selects energy-saving operation mode 1. When power is being supplied from the emergency power supply, other prioritized equipment is in operation, or it is predicted that there is high demand for the other prioritized equipment, the operation mode determination unit 67 selects energy-saving operation mode 2.

[0030] The elevator control unit 68 operates the elevator drive unit 71 in accordance with the operation mode determined by the operation mode determination unit 67. Although details of general elevator control processing will be omitted, the elevator control unit 68 manages the current position of the elevator car, accepts calls from the elevator hall and registers them as departure floors, drives the elevator car from the departure floor to the destination floor, and controls the opening and closing of doors at the departure and destination floors. The elevator control unit 68 outputs the operation status of the elevator 70 to the operation status notification unit 65, which notifies other equipment.

[0031] In this way, when the elevator 70 is receiving power from the emergency power source, the operation mode determination unit 67 and the elevator control unit 68 function as an elevator operation restriction unit that restricts the operation of the elevator 70 based on the operating status of other equipment.

[0032] The announcement control unit 69 causes the announcement device 73 to output a notification about the operation mode determined by the operation mode determination unit 67. The announcement device 73 is a display provided in the elevator hall or inside the elevator car. When in the normal operation mode, no special notification output is required. When in energy-saving operation mode 1, it outputs a message such as "Operating in energy-saving operation mode. Speed ​​and load capacity are restricted." When in energy-saving operation mode 2, it outputs a message such as "Operating in energy-saving operation mode. Operation direction is restricted. Cooperation requested."

[0033] 3 is a flowchart showing the processing procedure of the elevator control device 60. The elevator control device 60 repeatedly executes steps S101 to S112 shown in FIG. Step S101 The operation mode determination unit 67 determines the priority of each piece of building equipment. The operation mode determination unit 67 may read out the set priority information 66b or may receive new priority information 66b. Then, the process proceeds to step S102.

[0034] Step S102 The elevator control device 60 communicates its operating status with the other building facility control devices 40. The details will be described later. Then, the process proceeds to step S103. Step S103 The operation mode determination unit 67 determines whether or not there is a power outage based on the power information received by the power information reception unit 61. Specifically, if there is no power supply from the commercial power source 11, there is a power outage. If there is a power outage, the process proceeds to step S104. If there is no power outage, the process proceeds to step S112.

[0035] Step S104 The operation mode determination unit 67 determines whether the emergency power supply is in use based on the power supply information received by the power supply information reception unit 61. If the emergency power supply is in use, the process proceeds to step S105. If the emergency power supply is not in use, the process ends. Step S105 The operation mode determination unit 67 determines whether the remaining battery charge of the emergency power supply is equal to or greater than a threshold based on the power supply information received by the power supply information reception unit 61. If the remaining battery charge is equal to or greater than the threshold, the process proceeds to step S106. If the remaining battery charge is not equal to or greater than the threshold, the process proceeds to step S110.

[0036] Step S106 The operation mode determination unit 67 uses the operation status of the building facility 50 received by the other facility operation status reception unit 64 and the priority information 66b to determine whether the facility to be prioritized (the facility to which a higher priority than the elevator 70 is set according to the priority information 66b) is not operating. If the facility to be prioritized is not operating, the process proceeds to step S107. If the facility to be prioritized is operating, the process proceeds to step S109. Step S107 The operation mode determination unit 67 determines whether or not the time period is low for the equipment to be prioritized based on the prediction result by the demand prediction unit 63. If the time period is low for the equipment to be prioritized, the process proceeds to step S108. If the time period is not low for the equipment to be prioritized, the process proceeds to step S109.

[0037] Step S108 The operation mode determination unit 67 starts the elevator control unit 68 in the energy saving operation mode 1, and then ends the process. Step S109 The operation mode determination unit 67 starts the elevator control unit 68 in the energy saving operation mode 2, and then ends the process.

[0038] Step S110 The elevator control unit 68 operates the car to the next floor and stops it. After that, the process proceeds to step S111. Step S111 The announcement control unit 69 causes the announcement device 73 to output a message that the operation has been stopped due to a lack of power supply, and ends the process. Step S112 The operation mode determination unit 67 operates the elevator control unit 68 in the normal operation mode, and then ends the process.

[0039] Fig. 4 is a flowchart showing details of the operation status communication (step S102) shown in Fig. 3. In the operation status communication, the elevator control device 60 sequentially executes the following steps S201 to S206. After the process shown in Fig. 4 ends, the process proceeds to step S103 shown in the flowchart in Fig. 3.

[0040] Step S201 The elevator control unit 68 determines whether or not the elevator is in power running. If it is in power running, the process proceeds to step S202. If it is not in power running, the process proceeds to step S203. Step S202 The operating state notification unit 65 notifies other facilities that the train is currently in power running. Then, the process proceeds to step S204. Step S203 The operating state notification unit 65 notifies other facilities that the train is not in power running mode. Then, the process proceeds to step S204.

[0041] Step S204 The other equipment operation status receiving unit 64 determines whether or not the operation status has been received from the other equipment. If the operation status has been received from the other equipment, the process proceeds to step S205. If the operation status has not been received from the other equipment, the process proceeds to step S206.

[0042] Step S205 The other equipment operation status receiving unit 64 determines that the other equipment is operating and ends the process. This determination result is referred to in step S106. Step S206 The other equipment operation status receiving unit 64 determines that the other equipment is not operating and ends the process. This determination result is referred to in step S106.

[0043] 5 is a flowchart illustrating the operation of energy-saving operation mode 1. When energy-saving operation mode 1 is activated, elevator control device 60 repeats and sequentially executes the following steps S301 to S305.

[0044] Step S301 The elevator control unit 68 switches the operation mode to the energy-saving operation mode 1. Then, the process proceeds to step S302. Step S302 The elevator control unit 68 determines whether the elevator has stopped at any floor after switching to energy-saving operation mode 1. If the elevator has stopped at any floor after switching to energy-saving operation mode 1, the process proceeds to step S303. If the elevator has not stopped, the process ends. In this case, the elevator continues to operate without applying speed or load capacity restrictions, and the process returns to step S301. If the restrictions of the energy-saving operation mode are applied while the elevator is operating, there is a possibility that the elevator may suddenly slow down or may not be able to land at the destination floor due to load restrictions, so the operation of the elevator is prioritized until the elevator has landed once.

[0045] Step S303 The elevator control unit 68 limits the elevator speed and load capacity, and proceeds to step S304. The speed or load capacity may be limited, or both may be limited. The extent of the limit can be set as appropriate.

[0046] Step S304 Elevator control unit 68 does not restrict the operation direction and proceeds to step S305. Energy-saving operation mode 1 is applied when "other prioritized equipment is not operating" and "it is a time period when there is little demand for other prioritized equipment," so powered operation is permitted.

[0047] Step S305 The announcement control unit 69 outputs the information about the driving mode to the announcement device 73, and then ends the process. The content of the announcement may be something like, "Driving in energy-saving driving mode. Speed ​​and load capacity are restricted." Also, specific numerical values ​​for the speed and load capacity restrictions may be displayed.

[0048] 6 is a flowchart illustrating the operation of energy-saving operation mode 2. When energy-saving operation mode 2 is activated, the elevator control device 60 repeats and sequentially executes the following steps S401 to S409.

[0049] Step S401 The elevator control unit 68 switches the operation mode to the energy-saving operation mode 2. Then, the process proceeds to step S402. Step S402 The elevator control unit 68 determines whether or not the elevator has stopped at any floor after switching to energy-saving operation mode 2. If the elevator has stopped at any floor after switching to energy-saving operation mode 2, the process proceeds to step S403. If the elevator has not stopped, the process ends. In this case, the elevator continues to operate without applying any restrictions on speed or operation direction, and the process returns to step S401. If the restrictions of the energy-saving operation mode are applied while the elevator is operating, there is a possibility that the elevator may suddenly decelerate or may not be able to land at the destination floor due to loading restrictions, so the operation of the elevator is prioritized until the elevator has landed once.

[0050] Step S403 The elevator control unit 68 limits the elevator speed and proceeds to step S404. The load capacity is not limited here because it is related to the limit on the operating direction. The extent to which the speed is limited can be set as appropriate.

[0051] Step S404 The elevator control unit 68 refers to the determination result of the car load factor determination unit 62. If the car load factor is less than the first threshold value (for example, 40%), the process proceeds to step S408. If the car load factor is not less than the first threshold value, the process proceeds to step S405.

[0052] Step S405 The elevator control unit 68 refers to the determination result of the car load factor determination unit 62. If the car load factor is equal to or greater than the second threshold (e.g., 60%), the process proceeds to step S407. If the car load factor is not equal to or greater than the second threshold, the process proceeds to step S406.

[0053] Step S406 The elevator control unit 68 does not restrict the operating direction and proceeds to step S409. This is because if the load factor in the car is between the first threshold and the second threshold, the car is balanced with the counterweight, and the elevator can ascend and descend with little power consumption. Step S407 The elevator control unit 68 limits the operation direction to only downward, and proceeds to step S409. This is because if the load factor in the car is equal to or greater than the second threshold, a downward force is applied to the passenger car due to the balance with the counterweight. Step S408 The elevator control unit 68 limits the operating direction to only upward, and proceeds to step S409. This is because if the load factor in the car is less than the first threshold, an upward force is applied to the passenger car due to the balance with the counterweight.

[0054] Step S409 The announcement control unit 69 outputs information about the operation mode to the announcement device 73 and terminates the process. The announcement may include, for example, "The vehicle is operating in energy-saving operation mode. The operating direction is restricted. Your cooperation is appreciated." This announcement may encourage load adjustment. For example, if the destination floor is an upper floor, the load must be less than a first threshold in order to ascend using regenerative operation. In this case, a strict upper load limit may be set, and an announcement may be made saying, "The load limit has been set low in order to ascend using regenerative operation." Similarly, if the destination floor is a lower floor, the load must be greater than or equal to a second threshold in order to descend using regenerative operation. In this case, a lower load limit may be set, and an announcement may be made saying, "The vehicle will descend using regenerative operation, so please share rides."

[0055] 7 is a data table of control conditions for the operation modes. If power is not supplied from an emergency power source (a storage battery or an electric vehicle), condition 1 is met, and the operation mode determination unit 67 selects the "normal operation mode."

[0056] If power is supplied from an emergency power source (storage battery or electric vehicle), the remaining battery charge of the emergency power source is sufficient, no operation signals from other prioritized building facilities have been received, and it is predicted that demand for other prioritized building facilities is low, then condition 2 is met and the operation mode determination unit 67 selects "energy-saving operation mode 1." In "energy-saving operation mode 1," the operation direction is not restricted.

[0057] If the system is receiving power from an emergency power source (storage battery or electric vehicle), the battery level of the emergency power source is sufficient, and an operation signal from other building facilities that should be prioritized is received, condition 3 is met, and the operation mode determination unit 67 selects "energy-saving operation mode 2." In "energy-saving operation mode 2," the operation direction is restricted.

[0058] If power is supplied from an emergency power source (storage battery or electric vehicle), the remaining battery charge of the emergency power source is sufficient, and it is predicted that there is high demand for other building facilities that should be prioritized, then condition 4 is met and the operation mode determination unit 67 selects "energy-saving operation mode 2." In "energy-saving operation mode 2," the operation direction is restricted.

[0059] If power is supplied from an emergency power source (storage battery or electric vehicle) and the remaining battery power of the emergency power source is insufficient, condition 5 is met and the operation mode determination unit 67 selects "stop at nearest floor."

[0060] An example of control when restricting the driving direction will be described with reference to Figs. 8 to 10. In Fig. 8, a passenger car 74 is provided to an elevator drive unit 71. The passenger car 74 is balanced with a counterweight 75, for example, at an in-car load factor of about 50%. The passenger car 74 can stop at each floor from the first floor to the fourth floor of a building 30. Buttons for calling the passenger car 74 are provided in the elevator hall of each floor. An up call button is provided on the first floor. An up call button and a down call button are provided on the second and third floors. A down call button is provided on the fourth floor.

[0061] In energy-saving operation mode 2, the direction of operation is restricted. In this case, basically, calls can only be registered for floors above the floor where the passenger car 74 is stopped. When no one is in the passenger car 74, operation in the upward direction becomes regenerative operation, and movement to floors below the passenger car 74 becomes powered operation. Therefore, by prohibiting calls from lower floors, powered operation can be avoided.

[0062] In Figure 8, the passenger car 74 is stopped on the second floor, so calls from the first floor are prohibited. Calls are possible from the second to fourth floors. If a passenger car 74 is called between the second and fourth floors and many passengers get on, the car will operate in a regenerative manner in the downward direction. However, for example, if many people get on at the third floor but all get off at the second floor, further descents will require powered operation, so calls are not possible in a situation where it has not been confirmed that the passenger car 74 will stop on the first floor.

[0063] In FIG. 9, a call button for the downward direction is pressed on the third floor, generating a call for the car 74. As a result, the elevator drive unit 71 raises the car 74 from the second floor to the third floor. Thereafter, as shown in FIG. 10, the announcement device 73 installed in the car 74 announces information such as the load amount required for descent. The load amount required for descent is the load amount required for regenerative operation during descent. For example, a message such as "Load amount of XX kg or more, can move to lower floor" may be displayed. Furthermore, the number of people required to board may be displayed as an estimate, or the current load amount may be added and displayed. Furthermore, the relationship between the load amount and the direction of travel may be displayed.

[0064] As described above, the system disclosed in the embodiments is an elevator control system that controls the operation of an elevator, and is characterized by comprising: a power supply information receiving unit 61 that acquires information indicating whether the elevator is receiving power from an emergency power source; an equipment operation status receiving unit (other equipment operation status receiving unit 64) that acquires the operation status of other equipment that receives power from the emergency power source; and an elevator operation restriction unit (operation mode determination unit 67, elevator control unit 68) that restricts the operation of the elevator based on the operation status of the other equipment when the elevator is receiving power from the emergency power source. This configuration and operation allows elevator control according to the situation when the elevator shares an emergency power source with other facilities, thereby preventing situations in which the operation of lifeline-related equipment is insufficient due to elevator operation.

[0065] In addition, the elevator operation restriction unit refers to priority information indicating the priorities of the other equipment and the elevator, and restricts the operation of the elevator when equipment with a higher priority than the elevator is operating. This allows elevators to be operated while maintaining the operation of high-priority equipment.

[0066] In addition, the elevator operation restriction unit operates the elevator in a direction restriction operation mode in which the operation direction is restricted to upward if the load on the passenger car is less than a first threshold, and the operation direction is restricted to downward if the load on the passenger car is greater than or equal to a second threshold. This allows the elevator to be operated in regenerative mode, avoiding the power consumption caused by powered operation.

[0067] The elevator operation restriction unit further includes a demand prediction unit 63 that predicts the demand for the other facilities, and when the elevator is supplied with power from the emergency power supply, if the other facilities that should be given priority are not in operation and it is predicted that the demand for the other facilities is low, the elevator operation restriction unit operates the elevator in an operation mode that restricts the speed and / or load capacity of the car, and if the other facilities that should be given priority are in operation or it is predicted that the demand for the other facilities is high, the elevator operation restriction unit operates the elevator in the direction restriction operation mode. This allows the elevator to be operated efficiently in accordance with the operating status of other facilities.

[0068] Furthermore, when starting to restrict the operation of the elevator, if there is a car in operation, the elevator operation restriction unit starts to restrict the operation after the car next stops at any floor. This allows elevator operation restrictions to be started safely.

[0069] The elevator operation restriction unit also notifies the other equipment whether or not there is a passenger car in operation. This allows other equipment to be controlled in accordance with the elevator's operating conditions.

[0070] The present invention is not limited to the above-described embodiments, but includes various modifications. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to those including all of the described configurations. Furthermore, not only can the configurations be deleted, but also replacements and additions of configurations are possible.

[0071] For example, in the above embodiment, the elevator control device 60 restricts the operation of the elevator, but the PCS 20 or another device may restrict the operation of the elevator. In addition, in the above embodiment, a process was shown in which a priority was determined, operation status communication was performed, and then a determination was made as to whether or not a power outage was occurring. However, it is also possible to determine a priority and perform operation status communication after determining whether or not a power outage is occurring. Also, the operating status communication may be performed after the power supply information is received.

[0072] In the above embodiment, the operating status communication is configured such that the operating status of the device itself is notified to other devices, and the other devices control their own devices based on the received information. For example, after the elevator control device 60 transmits to the building equipment control device 40 that the elevator is in powered operation, the building equipment control device 40 decides how the building equipment control device 40 operates, and the elevator control device 60 is not directly involved. As a variant, the elevator control device 60 may be configured to output a control instruction to the building equipment control device 40 indicating whether or not to operate based on the operating status of the device itself. In the above embodiment, the elevator control device 60 notifies the building equipment control device 40 whether the elevator control device 60 is in power running or not in the operating status communication. As another example, the elevator control device 60 may be configured to notify whether the elevator control device 60 is in power running or regenerative running or not. Also, the elevator control device 60 may be configured to notify whether the elevator control device 60 is in power running or regenerative running or not. [Explanation of symbols]

[0073] 11: commercial power supply, 12: storage battery, 30: building, 40: building equipment control device, 50: building equipment, 60: elevator control device, 61: power supply information reception unit, 62: car load factor determination unit, 63: demand forecasting unit, 64: other equipment operation status reception unit, 65: operation status notification unit, 66a: building equipment power consumption, 66b: priority information, 67: operation mode determination unit, 68: elevator control unit, 69: announcement control unit, 70: elevator, 71: elevator drive unit, 72: car load factor measurement sensor, 73: announcement device, 74: passenger car, 75: counterweight.

Claims

1. An elevator control system for controlling the operation of an elevator, comprising: a power supply information receiving unit that acquires information indicating whether the elevator is receiving power from an emergency power supply; an equipment operation status receiving unit that acquires the operation status of other equipment that receives power supply from the emergency power supply; an elevator operation limiting unit that limits operation of the elevator based on operation states of other facilities when the elevator is supplied with power from the emergency power supply; An elevator control system comprising:

2. 2. The elevator control system of claim 1, The elevator operation restriction unit refers to priority information indicating the priorities of the other equipment and the elevator, and restricts the operation of the elevator when equipment with a higher priority than the elevator is operating.

3. 2. The elevator control system of claim 1, The elevator control system is characterized in that the elevator operation restriction unit operates the elevator in a direction restriction operation mode in which the operation direction is restricted to an upward direction if the load on the passenger car is less than a first threshold, and the operation direction is restricted to a downward direction if the load on the passenger car is equal to or greater than a second threshold.

4. 4. The elevator control system of claim 3, a demand forecasting unit that forecasts demand for the other facilities; When the elevator is supplied with power from the emergency power supply, the elevator operation limiting unit: When other facilities that should be given priority are not in operation and the demand for the other facilities is predicted to be low, the elevator is operated in an operation mode that limits the speed and / or load capacity of the elevator car; When other facilities that should be given priority are in operation or when it is predicted that the demand for the other facilities is high, the elevator is operated in the direction restricted operation mode. An elevator control system comprising:

5. 2. The elevator control system of claim 1, The elevator control system is characterized in that, when starting to restrict the operation of the elevator, if there is a passenger car in operation, the elevator operation restriction unit starts to restrict the operation after the passenger car next stops at any floor.

6. 2. The elevator control system of claim 1, The elevator control system is characterized in that the elevator operation restriction unit notifies the other equipment whether or not there is a passenger car in operation.

7. An elevator control device that controls the operation of an elevator, a power supply information receiving unit that acquires information indicating whether the elevator is receiving power from an emergency power supply; an equipment operation status receiving unit that acquires the operation status of other equipment that receives power supply from the emergency power supply; an elevator operation limiting unit that limits operation of the elevator based on operation states of other facilities when the elevator is supplied with power from the emergency power supply; An elevator control device comprising:

8. An elevator control method for controlling the operation of an elevator, comprising: The elevator control device a power supply information receiving step of acquiring information indicating whether the elevator is receiving power from an emergency power supply; an equipment operation status receiving step of acquiring operation statuses of other equipment that receives power supply from the emergency power supply; an elevator operation limiting step of limiting operation of the elevator based on operation states of other facilities when the elevator is supplied with power from the emergency power supply; An elevator control method comprising:

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