JP4662383B2 - Elevator group management control system - Google Patents

Description

  The present invention relates to an elevator group management control system that performs group management control of a plurality of elevators, and more particularly to an elevator group management control system that saves power by controlling the number of operating elevators.

  In a building such as an office, a plurality of elevators are installed. When a hall call is registered on a certain floor, an optimum elevator is selected and responds to the floor on which the hall call is registered. In this case, other elevators may be stopped waiting for a call, but during that time, they are always in an operating state, and thus power is consumed. If the number of elevators increases, the amount of power consumption becomes very high, and countermeasures are required.

Conventionally, as a method of reducing the power consumption of the entire elevator, a control parameter using an average waiting time or a target value (percentage) of power consumption as an index is incorporated into a group management allocation evaluation formula, and each elevator is adjusted according to the above index. There is a method of controlling the number of activations (see, for example, Patent Document 1).
JP-A-6-156893

  However, in the method as described above, when group management control is performed using the average waiting time as an index, there is a problem in that it is not known in detail how much power saving effect is actually obtained. Further, even when the target value of power consumption is used as an index, for example, the target value (percentage) is ambiguous because it is an index that operates at 80% of the current power, and it is difficult to grasp the power saving effect.

  The present invention has been made in view of the above points, and can provide a specific index of power saving. By restricting the number of elevators that can be operated to satisfy the power saving index, the building manager can It is an object of the present invention to provide an elevator group management control system that can realize power saving that is easy to grasp.

  The elevator group management system according to claim 1 of the present invention is an elevator group management system that performs group management control of a plurality of elevators. In the elevator group management system, target electric energy setting means that sets a target value of power consumption during a specified period; Power consumption statistical means for statistically recording the amount of power consumed by each elevator and the average waiting time for each predetermined time period, the target value of power consumption set by the target power consumption setting means, and the consumption Based on the power consumption and the average waiting time obtained by the electricity statistics means, the operation number control means for planning the number of elevators to be operated for each time period so as to achieve the target value, and this operation A group management control means for controlling the operation of each of the elevators in response to a hall call based on the number of operating units for each time period planned by the number control means; Characterized in that Bei was.

  According to such a configuration, by setting a target value of power consumption during the specified period, the number of elevators to be operated is planned for each time period so as to achieve the target value, and each elevator is planned according to the plan. Operation is controlled. As a result, the power saving effect can be easily grasped from the relationship between the target value of the power consumption and the number of operating units.

  According to claim 2 of the present invention, in the elevator group management control system according to claim 1, the target power setting means can set power consumption and average waiting time as priorities with priority as target values. The operating number control means plans the number of operating elevators for each time zone so that the average waiting time can be achieved when the priority of the average waiting time is set high by the target power setting means. And

  According to such a configuration, power consumption can be suppressed by controlling the number of operating units giving priority to the average waiting time that is the group management capability.

  According to a third aspect of the present invention, in the elevator group management control system according to the first or second aspect, the target electric energy setting means can arbitrarily set a time zone in which the number of operating units is not limited, and the number of operating units The control means plans the number of elevators to be operated by removing the time zone set by the target electricity amount setting means.

  According to such a configuration, it is possible to prohibit the restriction on the number of operating units in advance during a time period when demand is high, such as a work time period or a lunch time period.

According to a fourth aspect of the present invention, in the elevator group management control system according to the first aspect, the operating number control means compares the power consumption planned during the designated period with the actual power consumption, When the actual power consumption is less than the planned power consumption, re-planning is performed so as to relax the restriction on the number of operating units.

According to such a configuration, when the actual power consumption is smaller than the planned power consumption, the plan for the number of operating units is reviewed so as to satisfy the target value during the remaining period.

According to claim 5 of the present invention, in the elevator group management control system according to claim 1, the operating number control means compares the power consumption planned during the designated period with the actual power consumption, When the actual power consumption is larger than the planned power consumption, the limitation on the number of operating units is re-planned so as to strengthen the limitation on the number of operating units.

According to such a configuration, when the actual power consumption is larger than the planned power consumption, the plan for the number of operating units is reviewed so as to satisfy the target value during the remaining period.

  According to a sixth aspect of the present invention, in the elevator group management control system according to the first aspect, the target cannot be achieved when the target value of power consumption set by the target power setting means cannot be achieved. It is characterized by having a display means for displaying the fact.

  According to such a configuration, when the target value of the power consumption cannot be achieved, it is possible to prompt the building administrator to reset it by indicating that the target cannot be achieved.

  According to a seventh aspect of the present invention, in the elevator group management control system according to the first aspect, display means for displaying the actual amount of electric power consumed by each of the elevators as the actual value after the specified period has elapsed. It is characterized by having.

  According to such a configuration, the actual amount of power consumption is displayed as the actual value, so that the building administrator can know the effect on the target setting with specific numerical values.

  According to claim 8 of the present invention, in the elevator group management control system according to claim 1, the elevator during the specified period at the landing on each floor based on the number of operating units planned by the operating unit control means. It is characterized by comprising display means for displaying the operating status of

  According to such a configuration, even when the number of operating units is restricted, the elevator user can grasp the current situation and use the elevator without being confused.

  According to the present invention, a specific index of power saving can be given, and the number of operating elevators is limited so as to satisfy the power saving index, thereby realizing power saving that is easy for a building manager to grasp. be able to.

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

(First embodiment)
FIG. 1 is a block diagram showing a configuration of an elevator group management control system according to a first embodiment of the present invention.

  The elevator group management control system according to the present embodiment includes a target energy setting device 11, a group management control device 12, a power consumption measuring device 13, a single controller 14a, 14b, 14c, a car 15a, 15b, 15c, a landing. Are provided with call buttons 16a, 16b..., Operating number display devices 17a, 17b.

  The target electricity setting device 11 is installed in a building monitoring room or an elevator machine room, and is connected to the group management control device 12. The target power setting device 11 is composed of, for example, a personal computer, and a building administrator (including maintenance personnel) can arbitrarily set various target values (power consumption, power saving period) related to power saving with a keyboard, a mouse, or the like. It can be set.

  The group management control device 12 performs group management control of a plurality of elevators (cars 15a, 15b, 15c...). The group management control device 12 includes a power consumption statistics unit 21, a table storage unit 22, an operating number control unit 23, and a group management control unit 24.

  Based on the information output from the group management control unit 24 and the power consumption measuring device 13, the power consumption statistics unit 21 stores statistical data on the number of operating units, average waiting time, and power consumption for each predetermined time period. Record in the storage unit 22.

  The table storage unit 22 is provided with a first table 22a and a second table 22b. As shown in FIG. 2, the first table 22 a records data on the number of operating units and average waiting time for each time period obtained by the power consumption statistics unit 21. As shown in FIG. 3, the second table 22 b records data on the number of operating units and power consumption for each time zone obtained by the power consumption statistics unit 21.

  Based on the target value of power consumption set by the target power setting device 11 and the power saving period, the operating number control unit 23 plans the number of elevators operating for each time zone so as to achieve the target value. A command for limiting the number of operating units in accordance with the plan is output to the group management control unit 24. Information on the number of elevators operated for each time zone planned by the operating number control unit 23 is sent to the operating number display devices 17a, 17b,. Is output.

  The group management control unit 24 selects an optimal car from the cars 15a, 15b, 15c... For the hall call, and sets the single control apparatus corresponding to the car of the single controllers 14a, 14b, 14c. In response, an assignment command is output. Further, the group management control unit 24 measures an average waiting time for each past fixed period, and outputs the average waiting time information to the power consumption statistics unit 21 together with the number of operating units.

  On the other hand, the power consumption measuring device 13 is installed on the power line. The power consumption measuring device 13 measures the power amount of the entire system consumed by each elevator at regular intervals, and outputs the measured power amount to the power consumption statistics unit 21.

  The single controllers 14a, 14b, 14c,... Are provided corresponding to the cars 15a, 15b, 15c,..., And control the operation of the cars 15a, 15b, 15c,. The control devices 14a, 14b, 14c,... Are provided with car control units 25a, 25b, 25c,. The car control units 25a, 25b, 25c... Perform car door opening / closing control, car call registration control, and the like. The cars 15a, 15b, 15c... Move up and down in the hoistway in response to landing calls or car calls.

  “Place call” refers to a call that is registered by operating the hall call buttons 16a, 16b... Installed at the halls on each floor, and includes information on registered floors and destination directions. The hall call signal is given to the group management control unit 24. The group management control unit 24 selects an optimal car from the current driving situation and responds to the floor on which the hall call is registered.

  On the other hand, the “car call” is a call registered by operating the destination floor buttons 26a, 26, 26c... Provided in the respective car rooms of the cars 15a, 15b, 15c. Contains floor information. The car call signals are given to the corresponding single controllers 14a, 14b, 14c,. For example, if a car call signal is given to the single control device 14a, the single control device 14a moves the car 15a to the designated destination floor by operating the destination floor button 26a.

  In the elevator group management control system having such a configuration, first, a method for statistically recording the amount of power consumed, the number of operating units, and the average waiting time in the power consumption statistics unit 21 will be described.

  The car control units 25a, 25b, 25c,... Are group management control units periodically (for example, every 100 msec) of car call information registered in the car position, car room, and hall call information registered at the landing on each floor. 24 is output. The group management control unit 24 calculates the waiting time for all hall calls based on these pieces of information. The “waiting time” is the time from when the hall call is registered until the car responds to the registration floor and arrives at the floor.

  In addition, the group management control unit 24 calculates an average waiting time at regular intervals (every 5 minutes in the present embodiment), and calculates the average waiting time together with information on the number of elevators currently operating, the power consumption statistics unit 21. Output to. That is, the group management control unit 24 periodically outputs the average waiting time for the past 5 minutes and the number of operating units during that period.

  The power consumption measuring device 13 measures the power consumption of the entire system consumed by each elevator, and supplies the power consumed at regular intervals (in this embodiment, every 5 minutes) to the power consumption statistics unit 21. Output. That is, the power consumption measuring device 13 periodically outputs the power consumption for the past 5 minutes.

  Based on the average waiting time output from the group management control unit 24 every 5 minutes and the information on the number of operating units during that time, the power consumption statistics unit 21 uses a calculation formula as shown in Equation (1) for a certain period of time. An average waiting time is calculated every time (in this embodiment, every hour) and recorded in the first table 22a.

D _{n, i, new} = (1−τ) D _{n, i, pre} + τΣD _{n, now} / α (1)
In the above formula (1), n is the number of operating units. i is a learning time zone index, which is assigned as 1, 2,... from the first time zone obtained by dividing one day into fixed time intervals, that is, time zones of one hour interval.

D _now is the current average waiting time (average waiting time of the past 5 minutes output from the group management control unit 24), and the average value in the i-th time zone is output from the group management control unit 24. ΣD _{n, now} / α can be calculated from the average reception time α of waiting time data. In other words, the average waiting time information is output from the group management control unit 24 at intervals of 5 minutes, and the number of receptions α for one time slot that is one hour interval is twelve, so the i th time slot The average value in is the average value for the 12 receptions.

D _{i, new} is an average waiting time in the i-th time zone, and is updated every time interval. _{Di, pre} is the average waiting time recorded last time. That is, D _{n, i, new} is reflected in the previous average waiting time D _{i, pre} by multiplying the average value D _{n, now} / α of the current average waiting time in the i-th time zone by a certain reflection ratio τ. Can be obtained.

  In this way, the power consumption statistics unit 21 reflects the current average waiting time while taking into account the past average waiting time, so that the past average waiting time is not greatly affected by sudden changes in demand. Is recorded statistically.

  Note that this average waiting time data is recorded for each operating number in accordance with the value of the operating number n. As will be described later, the number of operating units is controlled by the operating unit control unit 23 for each time period. For example, when the number of operating units is 6 and 5 units, the average waiting time is as shown in FIG. It shall be recorded separately. In the following description, the total number will be six.

  Further, the power consumption statistics unit 21 calculates the average value of the amount of power consumed for each time zone and the number of operating units, together with the above-described recording of the average waiting time, using a calculation formula such as Equation (2). 2 is recorded in the second table 22b.

E _{n, i, new} = (1−σ) E _{n, i, pre} + σΣE _{n, now} / β (2)
In the above formula (2), n is the number of operating units. En _{, now} is the current power consumption (power consumption for the past 5 minutes output from the current power consumption measuring device 13), and the average value in the i-th time zone is received from the power consumption measuring device 13. ΣE _{n, now} / β can be calculated from the number of times β.

_Also, E n, _{i, new} is the latest power consumption in the i-th time slot for performing recording by dissipation quantity statistics unit _21, E n, _{i, pre} is the electricity consumption of the previously recorded. That is, E _{n, i, new} is reflected in the previous power consumption E _{n, i, pre} by multiplying the average value ΣE _{n, now} / β of the power consumption in the i-th time zone by a certain reflection ratio σ. Can be obtained.

  Thereby, the power consumption for 5 minutes is statistically calculated for every number of operating units or each demand level. The power consumption data is also recorded for each number of operating units according to the value of the number n of operating units, similarly to the data of the average waiting time. The second table 22b in which the power consumption is recorded is as shown in FIG. In the example of FIG. 3, the average waiting time obtained from the table 22a shown in FIG. 2 is recorded in the second table 22b together with the power consumption of each time zone.

  The average waiting time and power consumption data for each time zone and number of units operated calculated by the power consumption statistics unit 21 are in demand in a certain day in the future. In this case, it is effective data for estimating how much electric power is required. The operating unit control unit 23 uses these data to plan the number of operating elevators.

  In a situation where the elevator is not sufficiently operated, such as when the elevator is delivered, data cannot be collected in the recording table described above. For this reason, information related to the power consumption calculated from the motor capacity, elevator car size, etc. is set as a default value in the recording table in advance. It is possible to plan the number of elevators in operation.

  Next, a method in which the building manager sets the target value using the target power setting device 11 will be described with reference to FIG.

  FIG. 4 is a diagram illustrating an example of a screen configuration of the target electricity setting device 11 according to the first embodiment. The setting screen 50 displayed on the target power setting device 11 includes a setting item 51 for setting a target value, a display item 52 for displaying the current power consumption, and a confirmation for checking the actual value. And item 53.

  In the setting item 51, as a target value, it is possible to specifically set a period during which power saving is performed and a use permitted power amount permitting consumption during the period. As the input means, for example, a keyboard, a mouse, a touch panel, or a switch is used, but is not particularly limited thereto.

  In the display item 52, the current daily power consumption obtained from the power consumption statistics unit 21 via the operating number control unit 23 is displayed. The building manager can set the use permitted power amount (that is, the target value of the power consumption amount) in the setting item 51 with reference to the information displayed in the display item 52.

  In the confirmation item 53, the amount of power consumption as a result of performing power saving during the implementation period set in the setting item 51 is displayed as an actual value. The building manager can know the power saving effect with specific numerical values by looking at the information displayed in the display item 52.

  Next, the operation number plan method by the operation number control unit 23 will be described.

  The number-of-operations control unit 23 sets a target from the daily average waiting time / power consumption statistical data obtained from the power consumption statistics unit 21 and the power saving period / permitted power consumption obtained from the target power setting device 11. The number of operating elevators is planned for each time period set by the power consumption statistics unit 21 so that the power consumption can be achieved.

Here, the processing operation of the operating number control unit 23 will be described in detail with reference to FIG.
FIG. 5 is a flowchart showing the operation number planning process by the operation number control unit 23 of the group management control device 12 in the first embodiment.

  First, the number-of-operating-unit control unit 23 calculates the permitted power consumption per day (Q1) based on the power saving period and the permitted power consumption set by the target power setting device 11 (step S11). ).

  Next, the operating number control unit 23 uses the power consumption recorded in the second table 22b by the power consumption statistics unit 21 to operate the power consumption when all the units (6 units) are operated for the entire time period of one day. An amount (Q2) is calculated (step S12).

  Then, the operating unit control unit 23 compares the use permitted power amount Q1 calculated in step S11 with the power consumption amount Q2 calculated in step S12 (step S13). As a result, if the permitted power consumption Q1 is equal to or greater than the power consumption Q2 (Yes in step S13), the operating number control unit 23 sets the target power consumption even if all the units (6 units) are operated in all time zones. It is determined that the permitted power consumption (target value) set in the device 11 can be achieved, and the number of operating units is not limited.

  On the other hand, when the permitted power consumption Q1 is lower than the power consumption Q2 (No in step S13), the operating number control unit 23 has the longest average waiting time when all the units are operated from the first table 22a. A time zone in which is good is searched (step S14).

  Then, the operating number control unit 23 calculates again the power consumption amount Q2 per day when the number of operating units is reduced by one during the best time period (step S15), and compares it with the permitted power amount Q1. (Step S16). As a result, if the consumed power amount Q2 is larger than the permitted power amount Q1 (No in step S16), the operating number control unit 23 has the best average waiting time from the first table 22a in the same manner as described above. A search is made for an appropriate time zone (step S19 → S14), and the power consumption Q2 is recalculated when the number of operating units in that time zone is reduced (step S15). In this case, data that is one less than the number of operating units at the time of the previous search becomes the search target.

  In this way, the number of operating units is decreased by one until the power consumption amount Q2 becomes equal to or less than the permitted power consumption amount Q1. If the power consumption Q2 is not less than or equal to the permitted power consumption Q1 even if the number of operating units is one for all time zones (Yes in step S19), the operating number control unit 23 is set in the target power setting device 11 Information indicating that the permitted power consumption is invalid is output (step S20). As a result, the target power setting device 11 displays that the set value is invalid in the confirmation item 53 and prompts the building administrator to reset it.

  In addition, when the number of operating units is reduced and the power consumption Q2 becomes equal to or lower than the permitted power consumption Q1 (Yes in step S16), the operating unit control unit 23 sets the operating unit to the operating unit for each time period. The number is planned (step S17). Then, when the power saving period is actually reached, the operating number control unit 23 instructs the group management control unit 24 to limit the number of operating units so that the group management control is performed with the number of operating units in each planned time period. Is output (step S18).

  In this way, the number of elevators operating in each time zone is planned so as to satisfy the permitted electric energy set by the target electric energy setting device 11.

  The operating number control unit 23 records how much power is actually consumed when the elevator is operated with the planned operating number during the power saving period, and the power saving period ends. At that time, the power consumption is output to the target power setting device 11.

  In the standard electricity amount setting device 11, the power consumption amount during the power saving period is displayed as the actual value in the confirmation item 53 of the setting screen 50 shown in FIG. As a result, the building administrator can confirm with a specific numerical value whether or not the permitted power consumption set as the target value has been realized.

  In addition, the operating number display devices 17a, 17b,... Installed at the landings on each floor obtain the operating number for each planned time period from the operating number control unit 23 and display it in a predetermined format. An example of the display is shown in FIG. 6 exemplifying the operating number display device 17a installed at a hall on a certain floor. In this example, 2 units at 0 o'clock time zone, 2 units at 1 o'clock time zone, 2 units at 2 o'clock time zone, 3 units at 22 o'clock time zone, 3 units at 23 o'clock time zone, The situation where two elevators are operating in the 24 hour time zone is displayed. By such display, the elevator user can grasp the operating status of the elevator at the landing on each floor, and can use the elevator without hesitation even if the number of operating machines changes according to the time zone.

  In the example of FIG. 6, the number of operating elevators for each time zone is displayed. However, for example, as shown in FIG. 7, the elevator units in operation are displayed in a form that can be confirmed for each time zone. That's fine. In this example, two units of Unit A and Unit B in the time zone from 0:00 to 6:00, and five units of Unit A, Unit B, Unit C, Unit D, Unit E in the time zone from 0:00 to 6:00 Shows the situation where the elevator is operating. With such a display, it is possible to know not only the number of units in operation but which unit is in operation.

  Moreover, in the target electric energy setting apparatus 11, you may enable it to set arbitrarily the time slot | zone which does not implement power saving by the operation number limit mentioned above. For example, the restriction on the number of operating units is prohibited in advance during high demand periods such as working hours and lunch hours. In this case, the operation number control unit 23 plans the operation number by removing the prohibited time zone from the restriction target of the operation number.

  In the above embodiment, the number of operating units is planned in units of one day. However, by recording the second table 22b in units of days of the week, it is possible to make a plan that takes into account changes in demand that change from day to day. It becomes.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.

  The basic configuration is the same as that of FIG. 1 of the first embodiment. In the second embodiment, items that can be set by the target energy setting device 11 are different. That is, as shown in FIG. 8, the setting item 51 provided on the setting screen 50 includes an average waiting time in addition to a period during which power saving is performed as a target value and a permitted power consumption permitted during the period. It is possible to arbitrarily set which one of the limit value, the allowed power consumption amount, and the average wait time limit value is prioritized to save power.

  In addition, in the display item 52 provided on the setting screen 50, the current daily power consumption acquired from the power consumption statistics unit 21 via the operating number control unit 23 and the time zone recorded by the power consumption statistics unit 21. The average waiting time for each is displayed. As a result, the building manager can set the limit value of the permitted power consumption or the average waiting time with reference to these pieces of information.

  The number-of-operations control unit 23 calculates the average daily waiting time / power consumption statistical data obtained from the power consumption statistics unit 21 and the power saving period / usage permitted power amount or average waiting time obtained from the target power setting device 11. Based on the limit value, the number of operating elevators is planned for each time period set by the power consumption statistics unit 21 so that the target power consumption can be achieved.

Here, the processing operation of the operating number control unit 23 will be described in detail with reference to FIG.
FIG. 9 is a flowchart showing the operation number planning process by the operation number control unit 23 of the group management control device 12 in the second embodiment of the present invention.

  First, the number-of-operating-unit control unit 23 performs a priority check of the limit value of the allowable power consumption and the average waiting time set by the target power setting device 11 (step S21). If the priority of the permitted power consumption is higher than the limit value of the average waiting time (No in step S21), the operating number control unit 23 performs the same process as in the first embodiment, that is, FIG. Will be executed (step S22).

  On the other hand, when the priority of the limit value of the average waiting time is high (Yes in step S21), the operating number control unit 23 sets the average waiting time recorded in the first table 22a by the power consumption statistics unit 21. Based on the data, the average waiting time and the limit value in each time zone when operating with all units are compared (step S24).

  As a result, when the average waiting time is equal to or greater than the limit value of the average waiting time in all time zones (Yes in step S24), the operating number control unit 23 cannot satisfy the limit value of the average waiting time. And information indicating that the limit value of the average waiting time set in the target power setting device 11 is invalid (step S27). Thereby, in the target electric energy setting apparatus 11, it is displayed on the confirmation item 53 that the set value is invalid, and the building administrator is prompted to reset.

  If the average waiting time is less than the limit value of the average waiting time in all time zones (No in step S24), the operating number control unit 23 is recorded in the first table 22a by the power consumption statistics unit 21. Based on the data of the average waiting time, the minimum operating number satisfying the limit value of average waiting time ≦ average waiting time in each time zone is planned as the operating number in each time zone (step S25). Then, when the power saving period is actually reached, the operating number control unit 23 instructs the group management control unit 24 to limit the number of operating units so that the group management control is performed with the number of operating units in each planned time period. Is output (step S26).

  In this way, the number of elevators operating in each time zone is planned so as to satisfy the limit value of the average waiting time set by the target power setting device 11.

  The operating number control unit 23 records the actual power consumption and the average waiting time in each time zone when the elevator is operated based on the planned operating number during the power saving period. When the power execution period ends, the power consumption and the average waiting time are output to the target power setting device 11.

  In the target power setting apparatus 11, the power consumption and the average waiting time during the power saving period are displayed as actual values in the confirmation item 53 on the setting screen 50 shown in FIG. As a result, the building manager can confirm with a specific numerical value how much the amount of power consumption is while satisfying the limit value of the average waiting time set as the target value.

(Third embodiment)
Next, a third embodiment of the present invention will be described.

  In the third embodiment, if the planned power consumption differs from the actual power consumption by a certain amount or more during the power saving period, the number of units in operation is replanned during the remaining period. It is intended to be implemented.

  The basic configuration is the same as that of the first embodiment, and is the configuration shown in FIG. In the operation number control unit 23 in the third embodiment, when the actual power consumption amount differs from the plan during the power saving execution period, the operation number plan is set so as to satisfy the permitted power consumption amount during the remaining power saving execution period. Can be reviewed.

  Here, with reference to FIG. 10, the flow of processing when the operation number control unit 23 reviews the operation number plan will be described.

  FIG. 10 is a flowchart showing the processing operation of the operating number control unit 23 of the group management control device 12 in the third embodiment of the present invention. Here, in the first embodiment, the power saving period and the amount of power used are set, and the number of elevators already operating is already planned by the operating number control unit 23, and the power saving period and It is assumed that

  As described in the first embodiment, the number-of-operating-unit control unit 23 plans the number of operating units and the amount of power consumption for each time period. Also, during the power saving period, the actual amount of power consumption is determined. It is recorded.

  Here, during the power saving period, the operating unit control unit 23 compares the planned power consumption (assumed as Q3) with the actual power consumption (assumed as Q4) every time one section of the time zone elapses. This is performed (step S31). As a result, when the difference between the planned power consumption amount Q3 and the actual power consumption amount Q4 is equal to or greater than a certain amount (Yes in step S31), the operating number control unit 23 uses the currently set permitted power consumption amount. And the actual power consumption amount (permitted power consumption-actual power consumption amount) is obtained, and the difference between the two is reset as a new permitted power consumption amount (step S32).

  Then, during the remaining power saving period, the operating number control unit 23 re-plans the operating number in the same manner as in the first embodiment, based on the reset allowable power consumption (step S33). ).

  As a result, when the actual power consumption Q4 is larger than the planned power consumption Q3, the plan is revised so that the permitted power consumption can be satisfied, and the limit on the number of operating units is strengthened. become. On the other hand, when the actual power consumption Q4 is small, the plan is revised so as to be within the permitted power consumption, and the restriction on the number of operating units is relaxed.

  In step S31, the value used when determining the difference between the planned power consumption Q3 and the actual power consumption Q4 can be arbitrarily changed by the building administrator through the setting screen 50 or the like.

  Further, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various forms can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be omitted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

FIG. 1 is a block diagram showing a configuration of an elevator group management control system according to a first embodiment of the present invention. FIG. 2 is a diagram showing a configuration of a first table for managing the average waiting time for each hour provided in the group management control device in the same embodiment. FIG. 3 is a diagram showing a configuration of a second table for managing the number of operating units for each hour provided in the group management control device in the same embodiment. FIG. 4 is a diagram illustrating an example of a screen configuration of the target energy setting device according to the embodiment. FIG. 5 is a flowchart showing the operation number planning process by the operation number control unit of the group management control device in the embodiment. FIG. 6 is a diagram showing a display example of the operating number display device installed at the landing on each floor in the same embodiment. FIG. 7 is a diagram illustrating another display example of the operating number display device installed at the landing on each floor in the embodiment. FIG. 8 is a diagram showing a configuration of a setting screen of the target power setting device 11 in the same embodiment. FIG. 9 is a flowchart showing the operation number planning process by the operation number control unit of the group management control apparatus according to the second embodiment of the present invention. FIG. 10 is a flowchart showing the processing operation of the operating number control unit of the group management control apparatus according to the third embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Target electric energy setting apparatus, 12 ... Group management control apparatus, 13 ... Electric power consumption measuring apparatus, 14a, 14b, 14c ... Single-unit control apparatus, 15a, 15b, 15c ... Ride car, 16a, 16b ... Landing call button, 17a, 17b ... Operating number display device, 21 ... Power consumption statistics unit, 22 ... Table storage unit, 22a ... First table, 22b ... Second table, 23 ... Operating number control unit, 24 ... Group management control unit, 25a, 25b, 25c ... car control unit, 50 ... setting screen, 51 ... setting item, 52 ... display item, 53 ... confirmation item.

Claims (8)

In the elevator group management system for group management control of multiple elevators,
Target power setting means for setting a target value of power consumption during a specified period;
Power consumption statistics means for statistically recording the amount of power consumed by each elevator and the average waiting time for each predetermined time period;
Based on the power consumption target value set by the target power consumption setting means and the power consumption and average waiting time for each time period obtained by the power consumption statistics means, the elevator is configured to achieve the target value. Operating unit control means for planning the number of operating units for each time zone,
An elevator group management control system comprising: group management control means for controlling the operation of each of the elevators in response to a hall call based on the number of operating hours planned by the operating number control means. The target power setting means can set power consumption and average waiting time as a target value with priority,
The operating number control means plans the number of operating elevators for each time zone so that the average waiting time can be achieved when the priority of the average waiting time is set high by the target power setting means. The elevator group management control system according to claim 1. The target energy setting means can arbitrarily set the time zone when the number of operating units is not restricted,
The elevator group management control system according to claim 1 or 2, wherein the operating number control means plans the number of operating elevators outside the time zone set by the target electric energy setting means. The above operating unit control means compares the planned power consumption with the actual power consumption during the specified period, and if the actual power consumption is less than the planned power consumption, the restriction on the number of operating units is relaxed. The elevator group management control system according to claim 1, wherein replanning is performed. The above operating unit control means compares the planned power consumption during the specified period with the actual power consumption, and if the actual power consumption is greater than the planned power consumption, the limit on the number of operating units is activated. The elevator group management control system according to claim 1, wherein replanning is performed so as to increase the limitation on the number of units.   The elevator group according to claim 1, further comprising display means for displaying that the target cannot be achieved when the target value of the power consumption set by the target power setting means cannot be achieved. Management control system.   The elevator group management control system according to claim 1, further comprising display means for displaying, as a performance value, the amount of power actually consumed by each of the elevators after the specified period has elapsed.   2. The group of elevators according to claim 1, further comprising display means for displaying the operating status of the elevator during the specified period at the landing on each floor based on the operating number planned by the operating number control means. Management control system.

Images