JP6625019B2 - Passenger conveyor - Google Patents

Description

  The present invention relates to a passenger conveyor such as an escalator or a moving sidewalk, and more particularly to a passenger conveyor having a variable traveling speed.

  In the case of installing a passenger conveyor having a long running process, it is considered to increase the speed of the passenger conveyor in order to reduce the time from when the passenger gets on the vehicle to when it gets off.

  2. Description of the Related Art There has been proposed a passenger conveyor that changes the speed according to the state of passengers entering the vehicle (for example, see Patent Document 1). In the passenger conveyor described in Patent Document 1, the total number of passengers currently riding on the passenger conveyor is calculated based on the count history of the approach detection sensor provided near the entrance, and when the total number of passengers is large, Change the drive frequency of the AC motor of the device to reduce the operation speed. On the other hand, when the total number of passengers is small, high-speed driving is performed.

JP-A-2004-123348

  As described above, when installing a passenger conveyor having a long traveling process, it is required to increase the speed of the passenger conveyor. However, in order to perform high-speed operation, it is necessary to increase the capability of the driving device. In addition, the power equipment needs to be strengthened. Therefore, the volume required for installing the passenger conveyor increases. This is disadvantageous when installing a passenger conveyor in an existing building.

  In Patent Literature 1, the speed is controlled in accordance with the capability of the driving device, so that the speed of the passenger conveyor is increased without increasing the size of the driving device and power equipment. However, in Patent Literature 1, since the speed of the passenger conveyor is simply changed in accordance with the total number of passengers, if the driving speed of the passenger conveyor changes to a high speed while the passenger is riding, the passenger: Since the speed of the passenger conveyor at the time of getting in and the speed at the time of getting off are different, there is a possibility that it is puzzled when getting off. Further, when the passenger gets on and off at the timing of the speed switching, there is a possibility that the passenger falls down.

  The present invention has been made to solve such a problem, and increases the speed of the passenger conveyor when there are no passengers performing the getting on / off operation, and there are few passengers on the passenger conveyor and the motor is in a light load state. In addition to improving the transportation capacity, when the passenger enters and exits, the speed is returned to the normal speed, and a passenger conveyor that can control each passenger so that there is no speed change at the time of getting on and off is obtained. The purpose is to:

The present invention relates to a passenger conveyor in which a plurality of steps connected endlessly are circulated and moved by a driving device, wherein a load detection unit that detects a load of the driving device, A passenger detection unit provided for detecting a passenger scheduled to get on the passenger conveyor, and a passenger provided before the exit of the passenger conveyor and detecting a passenger scheduled to get off the passenger conveyor. A detection unit, the load of the drive device detected by the load detection unit, the detection result of the passenger to be boarded by the entrance passenger detection unit, and the passenger to be disembarked by the exit passenger detection unit Based on the detection result, by controlling the driving device, to control the traveling speed of the passenger conveyor, a control device, and the cumulative number of detection results of the passengers scheduled to board by the entrance passenger detection unit and Previous Fukuchi based on the difference between the cumulative number of passenger detection result of the alighting planned by the passenger detecting unit, and a aboard passenger detector for detecting a passenger riding present on the footstep of the passenger conveyor, The control device is that the load of the drive device detected by the load detection unit is less than a threshold , the passenger detection unit during boarding detects the passengers in the board, and the entrance passenger detection unit and When the exit passenger detection unit does not detect the scheduled passenger and the scheduled passenger, the traveling speed of the passenger conveyor is changed from a normal traveling speed to a first traveling speed higher than the normal traveling speed. It is a passenger conveyor that switches to the traveling speed of the passenger.

  ADVANTAGE OF THE INVENTION According to the passenger conveyor of this invention, when there are few passengers in a passenger conveyor and a motor is in a light load state, while using a motor and increasing the speed of a passenger conveyor, a transportation capacity is improved and a passenger enters and exits. Sometimes, the speed is returned to the normal speed, and there is no change in speed when getting on and off, so that passenger safety can be ensured.

FIG. 1 is an overall configuration diagram showing a configuration of a passenger conveyor according to Embodiment 1 of the present invention. FIG. 4 is a diagram showing an operation pattern of the passenger conveyor according to the first embodiment of the present invention.

  The present invention provides a passenger conveyor to which inverter control is applied, by increasing the speed of the passenger conveyor when the motor has a light load and efficiently using the motor, thereby improving the transportation capacity, and also allowing passengers to enter the vehicle. The present invention relates to a passenger conveyer that can return safely to a normal speed when the passenger gets off the vehicle, so that the passenger can get on and off safely safely.

  Hereinafter, an embodiment for carrying out a passenger conveyor according to the present invention will be described.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration of a passenger conveyor according to Embodiment 1 of the present invention. FIG. 1 shows the overall configuration of the passenger conveyor according to the first embodiment. As shown in FIG. 1, the passenger conveyor 1 has a main frame 10. The main frame 10 is provided with a loop-shaped, ie, endless, circulation path 11. Also, a plurality of steps 3 are provided. The plurality of steps 3 are circulated and moved along the circulation path 11. A passenger using the passenger conveyor 1 moves on the steps 3. The circulation path 11 has an upper reversing part 12 and a lower reversing part 13 where each step 3 is reversed. The circulation path 11 is wound around the upper chain gear 14 and the lower chain gear 15 in the upper reversing unit 12 and the lower reversing unit 13.

  The circulation path 11 is driven by the motor 2. The motor 2 is connected to an external power supply via an inverter device (not shown). The motor 2 is inverter-controlled by an inverter device. The motor 2 and the inverter device constitute a driving device for driving the passenger conveyor 1. The control device 6 controls the motor 2 and the inverter device. The control device 6 changes the speed of the passenger conveyor 1 by controlling the driving frequency of the motor 2 via the inverter device. The motor 2 is provided with a current sensor 20 for detecting a motor load current of the motor 2. The motor load current detected by the current sensor 20 is input to the control device 6.

  In addition, the passenger conveyor shown in FIG. 1 is comprised of an escalator. FIG. 1 shows a passenger conveyor in the case of an UP operation from a lower floor to an upper floor. Arrow A indicates the traveling direction of the passenger conveyor 1. The configuration of the passenger conveyor in the case of the DOWN operation from the upper floor to the lower floor is basically the same as that of FIG. 1 except that the upside down is reversed, so that illustration and description are omitted here.

  The passenger conveyor 1 has an entrance 16 and an exit 17. The passenger gets on the passenger conveyor 1 from the entrance 16 and gets off from the exit 17.

  The entrance sensor 4 is provided at a position in front of the entrance 16 in the traveling direction A, that is, at the landing 18 of the passenger conveyor 1. The entrance sensor 4 detects a passenger immediately before the passenger gets on the passenger conveyor 1. The entry sensor 4 outputs an entry detection signal to the control device 6 when a passenger is detected. The control device 6 can detect that there is a passenger scheduled to board the passenger conveyor 1 by receiving the boarding detection signal. In the following, the passengers scheduled to ride on the passenger conveyor 1 will be referred to as “scheduled passengers”. The passenger gets on the passenger conveyor 1 0.5 to 2 seconds after being detected by the entrance sensor 4.

  The exit sensor 5 is provided at a position in front of the exit 17 in the traveling direction A. The exit sensor 5 is disposed on the left or right side of the step 3. The exit sensor 5 detects a passenger when the passenger on the passenger conveyor 1 approaches the exit 17. The exit sensor 5 outputs an exit detection signal to the control device 6 when detecting a passenger. By receiving the rear vehicle detection signal, the control device 6 can detect that there is a passenger who is currently in the passenger conveyor 1 and is scheduled to get off soon. Hereinafter, a passenger who is currently on the passenger conveyor 1 and is about to get off is referred to as a "passenger who is about to get off". After being detected by the exit sensor 5, the passenger gets off the passenger conveyor 1 to the exit 19 0.5 to 2 seconds later.

  The difference between the cumulative number of passengers detected by the entrance sensor 4 and the cumulative number of passengers detected by the exit sensor 5 corresponds to the number of passengers currently in the passenger conveyor 1. Therefore, the control device 6 calculates the difference based on the history data of the detection result of the entrance sensor 4 and the history data of the detection result of the exit sensor 5, so that the control device 6 is currently on the foot conveyor 1. Of passengers can be detected. The passenger currently in the passenger conveyor 1 is hereinafter referred to as a “passenger in the passenger”.

  Next, the operation of the passenger conveyor 1 according to Embodiment 1 of the present invention will be described. The table of FIG. 2 shows each operation pattern of the passenger conveyor 1 according to the first embodiment. Before describing the operation of the passenger conveyor 1, first, the table of FIG. 2 will be described.

  Hereinafter, each operation pattern in the table of FIG. 2 will be described. In the “motor load” of FIG. 2, “heavy” means that the load of the motor 2 is equal to or greater than a preset threshold, and hereinafter, that state is referred to as “heavy load state” of the motor 2. And Further, “light” means a case where the load of the motor 2 is less than the threshold value, and hereinafter, this state is referred to as “light load state” of the motor 2.

  In the table of FIG. 2, the operation pattern (1) is an operation pattern in a case where no passengers are currently in the passenger conveyor 1 and there are no passengers scheduled to get on and off. If the control device 6 determines that there is no currently occupied passenger or no scheduled passenger based on the detection result of the entrance sensor 4 and the detection result of the exit sensor 5, Is set to “slow”, which is slower than “normal”. Thereby, the amount of electric power used for traveling of the passenger conveyor 1 can be suppressed, and energy saving operation can be performed.

  In the table of FIG. 2, an operation pattern (2) is an operation pattern in a case where one or more “scheduled passengers” or “disembarked passengers” exist and one or more “passengers on board” exist. is there. Based on the detection result of the entrance sensor 4 and the detection result of the exit sensor 5, the control device 6 determines that one or more “scheduled passengers” or “destined passengers” exists, If it is determined that one or more passengers exist, the speed of the passenger conveyor 1 is set to “normal” regardless of the load state of the motor 2. Thus, the "passenger scheduled to get on" or the "passenger scheduled to get off" can get on and off when the passenger conveyor 1 is traveling at the normal speed, and can get on and off safely.

  In the table of FIG. 2, the operation pattern (3) is such that there is at least one “passenger scheduled to get on” or “passenger scheduled to get off”, there is no “passenger on board”, and the motor 2 is “light”. This is an operation pattern in the case of “load state”. The control device 6 includes one “passenger scheduled to get on” or “passenger scheduled to get off” based on the detection result of the current sensor 20, the detection result of the entrance sensor 4, and the detection result of the exit sensor 5. If there is no "passenger on board" and the motor 2 is determined to be "lightly loaded", the speed of the passenger conveyor 1 is set to "normal". Thus, the "passenger scheduled to get on" or the "passenger scheduled to get off" can get on and off when the passenger conveyor 1 is traveling at the normal speed, and can get on and off safely.

  In the table of FIG. 2, the operation pattern (4) indicates that the “passenger scheduled to get on” and the “passenger scheduled to get off” do not exist and one or more “passengers on board” exist, but the motor 2 does not operate. It is an operation pattern in the case of "light load state". In a passenger conveyor having a long running process, the riding rate is relatively low in spite of the long riding time of the passenger, so that the motor 2 is in a light load state for a long time. Therefore, based on the detection result of the current sensor 20, the detection result of the entrance sensor 4, and the detection result of the exit sensor 5, the control device 6 determines whether the “passenger scheduled to get on” or the “passenger scheduled to get off” is If there is no and there is one or more “passengers on board” but the motor 2 is determined to be in the “light load state”, the speed of the passenger conveyor 1 is set to “high speed” higher than “normal”. To "." Thereby, the passenger who is riding on the passenger conveyor 1 can shorten the time from getting on to getting off the passenger conveyor 1 and improving the transport capacity of the passenger conveyor 1. However, the switching from the normal speed to the high speed needs to be started after a lapse of time from the detection of the entrance sensor 4 to the end of the passenger's boarding. A timer is provided to switch from the normal speed to the high speed after confirming by the timer that a preset delay time of about 1 to 3 seconds has elapsed.

  In the table of FIG. 2, the operation pattern (5) is such that there is no “passenger scheduled to get on” or “passenger scheduled to get off”, and one or more “passengers on board” exist, and the motor 2 is “ This is an operation pattern in the case of “heavy load state”. Based on the detection result of the current sensor 20, the detection result of the entrance sensor 4, and the detection result of the exit sensor 5, the control device 6 determines whether a “scheduled passenger” and a “scheduled passenger” exist. If there is at least one "passenger on board" and the motor 2 is determined to be in "heavy load state", the speed of the passenger conveyor 1 is set to "normal". As a result, the passenger conveyor 1 runs within the range of the capacity of the motor 2, so that the transport capacity of the passenger conveyor 1 is maximized within the range of the capacity of the motor 2 without increasing the size of the motor 2 and the power equipment. can do.

  The above is the respective operation patterns summarized in the table of FIG.

  Next, the operation of the passenger conveyor 1 will be described.

  The control device 6 reduces the power consumption by setting the operation speed of the passenger conveyor 1 to "low speed" in a state where the passenger conveyor 1 is activated, there are no passengers scheduled to get on and off, and no passengers are riding. Set to the energy saving mode.

  Next, when the entrance sensor 4 detects a passenger during the energy saving mode, the control device 6 accelerates the passenger conveyor 1 and increases the speed to the "normal" speed. Further, at this time, when the number of passengers in the vehicle is small, the load on the motor 2 is light, so the control device 6 uses the motor 2 and sets the operation speed to “high speed”. However, at this time, the control device 6 switches from the “normal” speed to the “high” speed after confirming by the timer that the preset delay time has elapsed. That is, the time length of the delay time is set in advance to an appropriate time length so that the speed is switched from the “normal” speed to the “high speed” after the passenger getting on / off operation is completed.

  On the other hand, when the entrance sensor 4 detects a passenger while the operation speed is "high speed", the control device 6 reduces the speed of the passenger conveyor 1 from "high speed" to "normal" speed.

  In addition, when the passenger approaches the exit when the driving speed is “high speed” and the exit sensor 5 detects the passenger, the control device 6 changes the speed of the passenger conveyor 1 from “high speed” to “normal” speed. Slow down.

  In addition, when many passengers enter the passenger conveyor 1 and the motor 2 is in the “heavy load state”, the speed of the passenger conveyor 1 is changed regardless of the detection results of the entrance sensor 4 and the exit sensor 5. Leave at "normal" speed without shifting to "fast".

  In the present embodiment, as described above, the operation pattern of the passenger conveyor 1 is switched according to the load state of the motor 2 and the riding condition of the passenger. Thereby, when there is a passenger on board, the transport capacity of the passenger conveyor 1 is maximized within the range of the capacity of the motor 2 to improve the transport capacity, and the “passenger scheduled to get on” or “get off” If there is a “passenger”, the speed of the passenger conveyor 1 is switched to the “normal” speed before the passenger gets on and off, so that the “scheduled passenger” or the “disembarked passenger” is at the normal speed. , It is possible to get on and off the passenger conveyor 1 that is traveling, so that it is possible to get on and off safely. Therefore, according to the passenger conveyor according to the first embodiment, there is no need to add new equipment, and the capacity of the drive device is increased without increasing the capacity of the drive device or the power equipment. Within this range, it is possible to improve the transport capacity of the passenger conveyor and to ensure passenger safety.

  In the above description, an example has been described in which the current sensor 20 that detects the motor load current of the motor 2 is used as the detection device that detects the load of the motor 2. However, the invention is not limited thereto, and the entrance sensor 4 and the exit sensor 5 may be used as a detection device for detecting the load of the motor 2. In that case, the control device 6 calculates the difference between the total number of passengers detected by the entrance sensor 4 and the total number of passengers detected by the exit sensor 5, and thereby outputs the current “ The number of “passengers on board” is detected, and this is set as the load of the motor 2. In this case, the control device 6 sets a threshold value for the difference in advance, and when the difference is larger than the threshold value, determines that the motor 2 is in the “heavy load state” and determines that the difference is smaller than the threshold value. In this case, it is assumed that the load of the motor 2 is in the “light load state”.

  In the above description, the case where the traveling speed of the passenger conveyor 1 is set to "high speed" has been described as being only the case of the exercise pattern (4) in FIG. However, the present invention is not limited to this case, and when the motor 2 is in the “light load state” and the entrance sensor 4 and the exit sensor 5 do not detect a passenger scheduled to get on and a passenger scheduled to get off, Regardless of the presence or absence of a passenger, the traveling speed of the passenger conveyor 1 may be set to “high speed”. However, also in this case, when the entrance sensor 4 and the exit sensor 5 detect the passenger who is going to get on and the passenger who is going to get off, the traveling speed of the passenger conveyor 1 is changed from "high speed" to "normal" speed. To switch to.

  INDUSTRIAL APPLICABILITY The present invention is applicable to all inverter-controlled passenger conveyors. In the above description, an escalator is described as an example of a passenger conveyor, but it is needless to say that the present invention can be applied to a moving sidewalk.

  1 Passenger conveyor, 2 motors, 3 steps, 4 entrance sensors, 5 exit sensors, 6 control devices.

Claims (4)

A passenger conveyor in which a plurality of steps connected endlessly are circulated and moved by a driving device,
A load detection unit that detects a load of the driving device;
An entrance passenger detection unit that is provided in front of the entrance of the passenger conveyor and detects a passenger who is scheduled to board the passenger conveyor,
An exit passenger detection unit that is provided in front of the exit of the passenger conveyor and detects a passenger scheduled to exit from the passenger conveyor,
The load of the drive device detected by the load detection unit, and the detection result of the passenger to be boarded by the entrance passenger detection unit and the detection result of the passenger to get off by the exit passenger detection unit Based on, by controlling the drive device, to control the traveling speed of the passenger conveyor, a control device ,
Based on the difference between the cumulative number of detection results of the passengers scheduled to get on by the entrance passenger detection unit and the cumulative number of detection results of passengers scheduled to get off by the exit passenger detection unit, A passenger detection unit for detecting a passenger in the vehicle existing on the step ,
The control device includes:
When the load of the driving device detected by the load detection unit is less than a threshold, the on- board passenger detection unit detects the on-board passenger, and the entrance passenger detection unit and the exit passenger detection Switching the traveling speed of the passenger conveyor from a normal traveling speed to a first traveling speed higher than the normal traveling speed when the unit does not detect the passenger to be boarded and the passenger to be disembarked; ,
Passenger conveyor. The control device includes:
When the entrance passenger detection unit detects the passenger to be boarded, regardless of the value of the load of the drive device detected by the load detection unit, the traveling speed of the passenger conveyor to the normal speed Set the running speed,
The passenger conveyor according to claim 1. The control device includes:
When the exit passenger detection unit detects the passenger to be disembarked, the traveling speed of the passenger conveyor is changed to the normal traveling speed regardless of the value of the load of the drive device detected by the load detection unit. Set speed,
The passenger conveyor according to claim 1. The control device includes:
The on-board passenger detection unit did not detect the on-board passenger, and the on-board passenger detection unit and the on-board passenger detection unit did not detect the on-board passenger and the off-board passenger. In the case, regardless of the value of the load of the drive device detected by the load detection unit, the traveling speed of the passenger conveyor is set to a second traveling speed lower than the normal traveling speed,
The passenger conveyor according to any one of claims 1 to 3 .

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