KR100901228B1 - Device for controlling elevator operation - Google Patents

Abstract

In the elevator running control device, a plurality of running control profiles for defining values relating to the running of the elevator, such as the speed of a car, for example, are registered in the running control device main body. The running control device main body collects, for example, values such as starting frequency of the car as use status information of the elevator. In addition, the operation control apparatus main body selects the operation control profile according to the use situation information, and controls the operation of the elevator based on the selected operation control profile.

Description

Elevator driving control device {DEVICE FOR CONTROLLING ELEVATOR OPERATION}

The present invention relates to an elevator running control device for controlling the lifting of the elevator car.

In the control apparatus of the conventional elevator system, one driving profile is selected from two driving profiles, which is a driving profile for shortening the traveling time between stairs and a driving profile for lengthening the traveling time between stairs. (See, for example, Patent Document 1).

Patent Document 1: Japanese Patent No. 3029883

In a conventional elevator system, for example, a hoisting machine, an inverter, a control circuit, or the like, when a load balance between a car and a counterweight is unbalanced, a high acceleration / deceleration speed, or a high speed is continuously operated for a long time. The driving device of is affected by heat. For example, when the hoist becomes high temperature, it becomes impossible to produce the required performance due to the potato. In addition, when the inverter and the control circuit become high temperature, the device may be damaged. In addition, in the case where a protection circuit for preventing thermal damage to the equipment is provided, the protection circuit operates to stop the operation of the elevator, resulting in a decrease in the running efficiency.

This invention is made | formed in order to solve the above subjects, and an object of this invention is to obtain the elevator operation control apparatus which can suppress that operation | movement is stopped by the temperature rise of an apparatus, and can prevent the fall of operation efficiency.

In the elevator driving control apparatus according to the present invention, a plurality of driving control profiles that define values relating to the operation of the elevator are registered, and the driving control profile is selected according to the use status information of the elevator, and based on the selected driving control profile And a running control device main body for controlling the operation of the elevator.

BRIEF DESCRIPTION OF THE DRAWINGS The block diagram which shows the elevator apparatus by Embodiment 1 of this invention.

2 is an explanatory diagram showing a first example of a registration form of a driving control profile in the elevator driving control apparatus of FIG. 1;

FIG. 3 is an explanatory diagram showing a second example of the registration form of the driving control profile in the elevator driving control apparatus of FIG. 1; FIG.

4 is a flowchart showing an example of the operation of the profile determination unit in FIG. 1;

5 is a flowchart showing a speed profile determination operation by the profile determination unit of FIG. 1;

6 is a flowchart illustrating an acceleration profile determination operation by the profile determination unit of FIG. 1.

FIG. 7 is an explanatory diagram showing a recording format of usage status information of an elevator running control apparatus according to Embodiment 2 of the present invention; FIG.

8 is a flowchart showing an example of a profile determination operation of the elevator running control apparatus according to the second embodiment.

9 is an explanatory diagram showing a recording format of usage status information of an elevator running control apparatus according to a third embodiment of the present invention;

10 is a block diagram showing an elevator apparatus according to Embodiment 4 of the present invention.

11 is a configuration diagram showing an elevator apparatus according to Embodiment 5 of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described with reference to drawings.

Embodiment 1.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the elevator apparatus by Embodiment 1 of this invention. In the figure, the car 1 and the counterweight 2 are suspended in the hoistway by the main rope 3, and the inside of the hoistway is lifted by the driving force of the hoisting machine 4. The hoist 4 has a drive sheave in which the main rope 3 is wound, a motor for rotating the drive sheave, and a brake for braking the rotation of the drive sheave.

The current supplied to the hoist 4 is controlled by the inverter 5. The inverter 5 is controlled by the inverter control circuit 6. The drive device which drives the cage | basket | car 1 and the counterweight 2 is comprised by the main rope 3, the hoisting machine 4, the inverter 5, and the inverter control circuit 6. As shown in FIG.

Opening and closing of the door of the car and the door of the boarding point are controlled by the door control circuit 11. The inverter control circuit 6 and the door control circuit 11 are controlled by the elevator drive control device. The elevator travel control device has a travel control device main body 12.

The travel control device main body 12 includes a profile group storage unit 13, a use situation collection unit 14, a use situation storage unit 15, a profile determination unit 16, and a travel management unit 17.

The profile group storage 13 is, for example, the speed of the car 1, the acceleration of the car 1, the jerk of the car 1, the door opening time, the door opening speed, the door closing speed and A plurality of driving control profiles for defining values relating to the operation of the elevator, such as the call assignable number, are stored.

Further, the door opening time is the time from the door opening to the automatic closing of the door without the operation of the door closing button. The number that can be allocated to the call is a constraint when allocating the car 1 to the landing call when the plurality of cars 1 are running controlled as a group. For example, if the number of landing calls and car calls that have completed the registration of an arbitrary car 1 is equal to or larger than the call assignable number, the landing call generated at that time can be assigned to another car 1.

The driving control profile is registered in the format shown in FIG. 2 or 3, for example. In the example of FIG. 2, three types of profiles (high speed, intermediate and suppressed profiles) in which the values of the respective items are combined are registered. In the example of FIG. 3, for each of the items, profiles of the high speed type, the intermediate type and the suppression type are set separately. Two or more driving control profiles may be registered in the profile group storage unit 13 for at least one item.

The usage situation collection unit 14 collects, for example, the usage status information of the elevator, such as the starting frequency of the car 1, the traveling distance of the car 1, the number of passengers and the call registration number. The usage situation storage unit 15 stores the usage situation information collected by the usage situation collection unit 14. In addition, the use state storage unit 15 stores use state information of the past (for example, past 5 minutes) from a predetermined time ago. In the case of storing a plurality of types of usage status information, the time to be stored may be changed for each type.

The profile determining unit 16 selects and determines the driving control profile so as to avoid driving stoppage or damage to the device due to the operation of the protection circuit in accordance with the use status information. The driving management unit 17 controls the hoisting machine 4 or the door based on the driving control profile determined by the profile determination unit 16.

The travel control device main body 12 is constituted by a computer having arithmetic processing unit (CPU), a storage unit (ROM, RAM, hard disk, etc.) and a signal input / output unit. The functions of the profile group storage unit 13, the usage situation collection unit 14, the usage situation storage unit 15, the profile determination unit 16, and the operation management unit 17 are controlled by a computer of the operation control apparatus main body 12. Is realized.

That is, the control unit for realizing the functions of the profile group storage unit 13, the usage situation collection unit 14, the usage situation storage unit 15, the profile determination unit 16, and the operation management unit 17 is stored in the computer storage unit. The program is stored. In addition, data of the driving control profile and the usage status information are also stored in the storage unit. The arithmetic processing unit executes arithmetic processing relating to the functions of the travel control apparatus main body 12 based on the control program.

4 is a flowchart showing an example of the operation of the profile determination unit 16 of FIG. In Fig. 4, the profile is determined based only on the activation frequency An among the use situation information. In the profile determination unit 16, the first threshold value THan1 and the second threshold value THan2 (THan1> THan2) are set as threshold values of the starting frequency.

The profile determining unit 16 first determines whether the starting frequency An is greater than the first threshold THan1 (step S1). If the startup frequency An is larger than the first threshold THan1, the suppression profile of FIG. 2 is selected to suppress the temperature rise of the device (step S2).

When the activation frequency An is equal to or less than the first threshold THan1, it is determined whether the activation frequency An is greater than the second threshold THan2 (step S3). And if the activation frequency An is larger than 2nd threshold value THan2, the intermediate | middle profile of FIG. 2 is selected (step S4).

When the starting frequency An is equal to or less than the second threshold THan2, it is determined that the load on the device is small even when high speed travel is performed, and the high speed profile of FIG. 2 is selected (step S5). In the profile determination unit 16, the operation as shown in FIG. 4 is continuously executed at a predetermined cycle, and the profile is updated in response to the change in the startup frequency An.

As shown in Fig. 3, when a plurality of profiles are set for each item, the profile is selected and determined for each item. For example, FIG. 5 is a flowchart showing the speed profile determination operation by the profile determination unit 16 of FIG. In this case, in the profile determination unit 16, the first threshold value THanv1 and the second threshold value THanv2 (THanv1> THanv2) are set as threshold values of the starting frequency.

The profile determining unit 16 first determines whether the starting frequency An is greater than the first threshold THanv1 (step S6). If the startup frequency An is larger than the first threshold THanv1, the suppressed speed profile of Fig. 3 is selected to suppress the temperature rise of the device (step S7).

If the activation frequency An is equal to or less than the first threshold THanv1, it is determined whether the activation frequency An is greater than the second threshold THanv2 (step S8). And if the activation frequency An is larger than 2nd threshold THanv2, the intermediate | middle speed profile of FIG. 3 is selected (step S9).

When the starting frequency An is equal to or less than the second threshold value THanv2, it is determined that the load on the device is small even when the high-speed driving is performed, and the high speed type speed profile v1> v2> v3 of FIG. 3 is selected (step S10). In addition, in the profile determination unit 16, the operation as shown in Fig. 5 is continuously executed at a predetermined cycle, and the speed profile is updated in response to the change in the startup frequency An.

6 is a flowchart showing an acceleration profile determination operation by the profile determination unit 16 of FIG. In this case, the profile determination unit 16 is set with the first threshold THana1 and the second threshold THana2 (THana1> THana2) as thresholds of the starting frequency.

The profile determining unit 16 first determines whether the starting frequency An is greater than the first threshold THana1 (step S11). If the startup frequency An is larger than the first threshold THana1, the suppressed acceleration profile of FIG. 3 is selected to suppress the temperature rise of the device (step S12).

If the activation frequency An is equal to or less than the first threshold THana1, it is determined whether the activation frequency An is greater than the second threshold THana2 (step S13). And if the activation frequency An is larger than 2nd threshold THana2, the intermediate | middle acceleration profile of FIG. 3 is selected (step S14).

When the starting frequency An is equal to or less than the second threshold THana2, it is determined that the load on the device is small even when high speed travel is performed, and the high speed acceleration profile a1> a2> a3 in FIG. 3 is selected (step S15). In addition, in the profile determination unit 16, the operation as shown in FIG. 5 is continuously executed at a predetermined cycle, and the acceleration profile is updated in response to the change in the starting frequency An.

It is possible to determine other items, such as jerk, door open time, door open speed, door close speed and call assignable number, by the same method as speed and acceleration.

In the driving control apparatus 12 as described above, the driving control profile is selected according to the use status information of the elevator, and the driving of the elevator is controlled based on the selected driving control profile, so that the driving is stopped due to the temperature rise of the device. Can be suppressed and the fall of running efficiency can be prevented.

Embodiment 2.

Next, Embodiment 2 of this invention is described. In the second embodiment, usage status information of a plurality of time zones is accumulated and recorded in the usage status storage section 15. For example, FIG. 7 is explanatory drawing which shows the recording format of the usage status information of the elevator drive control apparatus by Embodiment 2. FIG. In this example, for example, the values of the maneuvering frequency, the number of passengers, and the mileage are recorded in chronological order every five minutes. The accumulated usage information of the past is N pieces except for the latest time zone.

The profile determination unit 16 obtains the change situation of the use situation from the information stored in the use situation storage unit 15, and selects the driving control profile based on the obtained change situation. 8 is a flowchart showing an example of the profile determination operation of the elevator driving control apparatus according to the second embodiment.

In this example, the value An (τ) of the usage situation at an arbitrary time τ is compared with the value An (τ-1) of the usage situation at the time τ-1, and An (τ)> An (τ− 1) The increase number jan is counted, and a profile is selected based on jan or based on jan and the value An (τ) of the latest usage situation. That is, the larger the value of jan, the profile determination unit 16 determines that the frequency of use of the elevator is increasing, and suppresses the operation of the elevator.

Specifically, in the profile determination unit 16, THan1 and TH an2 (THan1> THan2), which are threshold values of the starting frequency, and THjan1 and THjan2 (THjan1> THjan2), which are threshold values of the increase frequency jan, are set.

The profile determination unit 16 first determines whether the activation frequency An is larger than the threshold THan1 and whether the increase number jan is greater than the threshold THjan1 (step S16). If the activation frequency An is larger than the threshold THan1 and the increase number jan is larger than the threshold THjan1, the suppression profile of FIG. 2 is selected to suppress the temperature rise of the device (step S17).

When the activation frequency An is equal to or less than the threshold THan1 or the increase frequency jan is equal to or less than the threshold THjan1, it is determined whether the activation frequency An is greater than the threshold THan2 and whether the increase frequency jan is greater than the threshold THjan2 (step S18). . And if the activation frequency An is larger than the threshold THan2 and the increase frequency jan is larger than the threshold THjan2, the intermediate profile of FIG. 2 is selected (step S19).

When the starting frequency An is equal to or less than the threshold THan2 or the increase frequency jan is equal to or less than the threshold THjan2, it is determined that the load on the device is small even when high speed operation is performed, and the high speed profile of FIG. 2 is selected (step S20). In the profile determination unit 16, the operation as shown in Fig. 8 is continuously executed at a predetermined cycle, and the profile is updated in response to the fluctuations of the start frequency An and the increase frequency jan. The other configuration is the same as that in the first embodiment.

In such an elevator operation control device, the change of the use situation is obtained from the use situation information, and the operation control profile is selected based on the obtained change situation, thereby more reliably suppressing the suspension of operation due to the temperature rise of the device. Therefore, the fall of running efficiency can be prevented.

Embodiment 3.

Next, Embodiment 3 of this invention is described. In the third embodiment, the average value of the usage situation information up to the previous day is recorded in the usage situation storage unit 15 for each time zone. For example, FIG. 9 is explanatory drawing which shows the recording format of the use situation information of the elevator drive control apparatus by Embodiment 3. As shown in FIG. In this example, for example, an average value up to the day before the maneuvering frequency, the number of passengers, and the mileage is recorded every five minutes in chronological order. In addition, the average value of the use status information is updated in order by adding the value of the day.

The profile determination unit 16 extracts the value of the usage situation of the next time zone from the information stored in the usage situation storage unit 15, and selects, for example, the driving control profile by the method shown in FIG. . Moreover, the transition situation may be calculated | required from the value of the N use situation of the future from the past including a present time, and a driving control profile may be selected by the method shown in FIG.

Moreover, both the average value of the usage situation until the day before shown in FIG. 9, and the value of the past N for the day shown in FIG. 7 are stored in the use situation storage | storage part 15, and both of these values are used to select a driving control profile You may carry out. That is, the increase number jan may be calculated with respect to the past N values shown in FIG. 7 and the M values after the present time shown in FIG. 9, and the driving control profile may be selected by the method shown in FIG. . The other configuration is the same as that in the first embodiment.

In such an elevator operation control apparatus, the average value of the use situation information up to the previous day is recorded for each time zone, and the operation control profile is selected based on the average value of the use situation information. It can suppress more reliably and can prevent the fall of running efficiency.

Embodiment 4.

Next, FIG. 10 is a block diagram which shows the elevator apparatus by Embodiment 4 of this invention. In the figure, the running control device main body 12 has the functions of the temperature estimating unit 18 and the waiting time estimating unit 19 in addition to the functions of the first embodiment. The functions of these temperature estimating section 18 and waiting time estimating section 19 are also realized by a computer of the travel control apparatus main body 12.

The temperature estimation part 18 estimates the future temperature of a drive apparatus using the future use situation information in Embodiment 3 (FIG. 4). The waiting time estimation part 19 estimates a future waiting time using the future use situation information in Embodiment 3 (FIG. 4). The profile determination unit 16 determines the current running control profile required to minimize the waiting time from the estimation results by the temperature estimating unit 18 and the waiting time estimating unit 19 to the temperature of the driving device below the allowable value. Decide

Specifically, the temperature estimating unit 18 estimates the temperature of the drive device at a future time t + L from the value of the use situation for the time K portion including the present time (L <K). The temperature of a future drive device can be calculated | required by the simulation at the time of determining the running control profile which is present, for example. This simulation is performed for all profile groups. In addition, let the estimated value of the temperature of a drive apparatus be T (t + L).

The waiting time estimation part 19 estimates the waiting time in future time t + L from the value of the use situation of the time K of the time containing the present. The future waiting time can be obtained by simulation, for example, when determining a running control profile. This simulation is performed for all profile groups. In addition, let the estimated value of waiting time be AWT (t + L).

The profile determination unit 16 selects a travel control profile in which the estimated value T (t + L) of the temperature of the drive device does not exceed the threshold THt and the estimated value AWT (t + L) of the waiting time is minimum.

In such an elevator driving control apparatus, the future temperature and the future waiting time of the driving apparatus are estimated from the usage situation information, and the driving control profile is selected so that the waiting time is minimized so that the temperature of the driving apparatus is below the allowable value. The running efficiency can be improved while more reliably suppressing the stop of running due to the temperature rise.

Embodiment 5.

Next, FIG. 11 is a block diagram which shows the elevator apparatus by Embodiment 5 of this invention. In the figure, the hoisting machine 4 is provided with a hoisting temperature sensor 8 for outputting a signal corresponding to the temperature of the hoisting machine 4. The inverter 5 is provided with an inverter temperature sensor 9 which outputs a signal corresponding to the temperature of the inverter 5. The inverter control circuit 6 is provided with a temperature sensor 10 for a control circuit that outputs a signal corresponding to the temperature of the inverter control circuit 6.

The apparatus temperature measuring unit 20 is provided in the driving control apparatus main body 12. The apparatus temperature measuring unit 20 measures the temperature of the hoist 4, the inverter 5, and the inverter control circuit 6 constituting the drive device based on the signals from the temperature sensors 8 to 10. The function of the apparatus temperature measuring unit 20 is also realized by a computer of the traveling control apparatus main body 12.

The temperature estimating unit 18 estimates the future temperature of the driving device using the temperature of the driving device measured by the device temperature measuring unit 20 and the future use situation information in the third embodiment (FIG. 4). . Specifically, the temperature estimating unit 18 includes values of the use situation for the time K including the present, the temperature Tm of the present hoisting machine 4, the temperature Ti of the present inverter 5, and the present inverter control. From the temperature Tc of the circuit 6, the temperature of the drive apparatus at future time t + L is estimated (L <K). The temperature of a future drive apparatus can be calculated | required by the simulation, for example when having determined the arbitrary drive control profile. This simulation is performed for all profile groups. The other operation is the same as that of the fourth embodiment.

In such an elevator driving control apparatus, the future temperature of the driving apparatus is estimated using not only the future use status information but also the measured value of the temperature of the current driving apparatus, so that the temperature of the driving apparatus can be estimated more accurately. It is possible to more reliably suppress that the driving is stopped by the rise in temperature.

In addition, in Embodiment 5, although the temperature of the hoisting machine 4, the inverter 5, and the inverter control circuit 6 was measured as the temperature of a drive apparatus, the temperature of other parts, such as the temperature of the main rope 3, was measured, for example. You may measure.

According to this invention, the elevator operation control apparatus which controls the elevating of the cage | basket | car of an elevator can be provided.

Claims (8)

A plurality of driving control profiles which define values relating to the operation of the elevator are registered, the operation control profile is selected in accordance with the use status information of the elevator, and the operation of the elevator is controlled based on the selected operation control profile. And a vehicle control device main body, wherein the vehicle control profile includes at least one of a car speed, an acceleration of the car, a jerk of the car, a door opening time, a door opening speed, and a door closing speed. In an elevator driving control apparatus, in which an item is included and a plurality of driving control profiles are registered for each item, The driving control apparatus main body collects at least one value of the starting frequency of the car, the driving distance of the car, the number of passengers, and the number of call registrations as the use situation information, and obtains the change situation of the use situation from the use situation information. Elevator operation control device characterized in that the selection of the driving control profile based on the change situation. delete delete The method of claim 1, And said running control device main body stores past use situation information from a predetermined time ago. delete The method of claim 1, And said running control device main body selects a running control profile based on an average value for each time zone of usage status information up to the previous day. The method of claim 1, The running control device main body estimates the future temperature and the future waiting time of the driving device for driving the car from the use situation information, and runs so that the waiting time is minimized below the allowable value of the temperature of the driving device. The elevator drive control apparatus characterized by selecting a control profile. The method of claim 7, wherein The running control device main body estimates a future temperature of the driving device from the use status information and the measured value of the temperature of the current driving device.

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