JP3004500B2 - Escalator control device for wheelchair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a wheelchair and escalator.

[0002]

2. Description of the Related Art In recent years, escalators that can be used by wheelchair users while riding in wheelchairs have been installed on stairs in railway station premises. In order to reduce the psychological burden on wheelchair users, improve driving efficiency, and improve services for general users, this escalator for wheelchairs can be used without stopping the escalator for normal driving. Some vehicles switch to driving and return to normal driving without stopping again after use by a wheelchair user.

FIG. 5 shows a general mechanical configuration of such a wheelchair / escalator. The escalator 1 connects a plurality of steps 2 endlessly, and a lower floor entrance 3
And the upper floor entry / exit gate 4 is installed at an angle. In the normal operation mode, each step 2 is operated with a step formed.

At each of the entrances 3 and 4 on the upper and lower floors, a biasing device 5 is provided.
6 are provided. These urging devices 5 and 6 transform the two steps 2 and 2 into wheelchair steps in the wheelchair driving mode such that the upper surfaces thereof are flush with each other, and convert the steps 2 and 2 in the normal driving mode. It has a function to restore. In FIG. 5, reference numerals 7a, 7b and 7c denote steps which are modified for a wheelchair. Reference numeral 8 denotes a truss, and 9 denotes a three-phase induction motor for operating the escalator 1.

At the entrance 3 on the lower floor, a clerk call button 11 for calling a clerk 10, a wheelchair changeover switch 12 provided on a balustrade of the escalator 1, a driving check button 13, a getting off button 14, a wheelchair driving Stop button 15
And a restart button 16. On the other hand, at the entrance 4 on the upper floor, a driving confirmation
7, a drop confirmation button 18, a wheelchair operation stop button 19, and a restart button 20 are provided. These buttons 13 to 20 are enabled in the wheelchair driving mode.

The deceleration start limit switches 21 and 22 are provided at positions near the upper and lower floor ends of the escalator 1, respectively, and the lower departure entrance 3 is a deceleration limit switch 23, an overrun limit switch 24, and a get off switch. An overrun limit switch 25 is provided, and the deceleration limit switch 26 is also provided at the upper floor entrance 4 similarly.
A boarding overrun limit switch 27 and a landing overrun limit switch 28 are provided. Note that these switches 21 to 28 are designed to operate when a protruding piece (not shown) provided on the wheelchair steps 7a, 7b, 7c is engaged in the wheelchair driving mode.

The deceleration start limit switches 21 and 2
2 detects a deceleration start position for decelerating each wheelchair step 7a, 7b, 7c at each of the entrances 3, 4, and the entry deceleration limit switches 23, 26.
Each of them detects a deceleration start position for decelerating the wheelchair steps 7a, 7b, 7c at the entrances 3, 4 when the wheelchair Q enters.

[0008] Also, the boarding overrun limit switch 2
4, 26, respectively, at the entrance of the wheelchair Q, each entrance 3,
Steps 7a, 7b, 7 for each wheelchair running at a very low speed at 4.
Even if c exceeds a predetermined position, for example, a position where the boarding should be completed, it is detected that the vehicle is still traveling at a very low speed.

[0009] Further, the overrun limit switches 25 and 28 are respectively operated by the wheelchair steps 7a and 7 which are traveling at a low speed at the entrances 3 and 4 when the wheelchair Q is dismounted.
This is to detect that the vehicle is still traveling at a very low speed even if b and 7c exceed a predetermined position, for example, a position where the descending operation should be completed.

The operation of the wheelchair / escalator having such a configuration will be described with reference to a timing chart shown in FIG. First, after confirming that the transportation of general passengers has been completed, when the wheelchair operation switch 12 is operated, the escalator 1 starts operating in the wheelchair operation mode. When this wheelchair driving mode is started and the wheelchair step 7a approaches the entrance 3 on the lower floor, the deceleration limit switch 23 is operated, and the escalator 1 is decelerated, and is driven at a speed of, for example, 3.5 m / min. Become so. The speed of 3.5 m / min is a speed at which the wheelchair Q can easily get on the escalator 1 and the attendant can operate with a sufficient margin.

At this speed, the wheelchair Q gets on the escalator 1, and when this is completed and the attendant operates the confirmation button 13, the escalator 1 is accelerated and driven at the specified speed of 30 m / min.

When the wheelchair step 7a reaches the deceleration start limit switch 22 on the upper floor entrance 4 at the specified speed, the switch 22 operates to decelerate the escalator 1 again at a speed of 7.5 m / min. Become driven. While the escalator 1 is moving at this speed, the wheelchair Q descends from the escalator 1, and it is confirmed that the wheelchair Q has descended. Finally, when the descending confirmation button 18 is operated, the escalator 1 returns to the normal operation mode. 30
It is operated at a speed of m / min.

[0013]

However, the above-mentioned wheelchair / escalator has a problem that a power failure occurs in the wheelchair driving mode, which causes inconvenience. In other words, a power failure occurs during driving in the wheelchair driving mode, and in order to drive again in the wheelchair driving mode after the power is restored, the wheelchair Q
Must be maintained at the stop position of the wheelchair step 7a on which the vehicle is mounted and the state immediately before the occurrence of the power failure of each of the limit switches 21 to 28 such as the boarding deceleration limit switch 23. However, maintaining the state immediately before the power failure is technically difficult.
At present, adoption is difficult even considering the security of the system.

On the other hand, if the normal operation is resumed immediately after the power is restored, if a power failure occurs during operation in the wheelchair driving mode, there is a high possibility that the wheelchair Q will remain in the middle of the escalator. However, when the vehicle arrives at the entrance after resuming driving, the speed is too high, and there is a problem in that the wheelchair user is safely lowered.

Therefore, even if a power failure occurs during operation in the wheelchair driving mode and the operation is resumed after the power is restored, the wheelchair user is reliably transported at a low speed to the entrance without being resumed in the normal operation mode. A control device is proposed in the invention of the prior application (Japanese Patent Application No. 4-230691). In this proposal, a special dedicated key switch is provided, and the operation is entrusted to the manual operation of the station staff, and according to this method, it is not possible to transport wheelchair users to the entrance after power restoration. It can be done easily. However,
There is a problem that an incorrect operation when returning a step transformed into a wheelchair step to a normal state may cause damage to the step and other devices.

The present invention has been made in view of such a conventional problem, and a power failure occurs in a wheelchair driving mode.
Even if the operation is resumed after the power is restored, the wheelchair user can be safely transported to the entry / exit at a low speed without being resumed in the normal operation mode. An object of the present invention is to provide a control device for a wheelchair and escalator that can prevent the occurrence of breakage.

[0017]

According to the first aspect of the present invention, an escalator in which a plurality of steps are connected endlessly is arranged between each of the entrances on the upper and lower floors, and the escalator is operated in a normal operation mode and in an appropriate number of predetermined positions. In a control device for a wheelchair / escalator that switches between a wheelchair driving mode in which a step is formed as a wheelchair step and operates, a driving operation switch for starting operation in a normal driving mode, and a driving mode immediately before a power failure Operation mode holding means for holding data indicating the operation of the vehicle, and when the operation mode data held by the operation mode holding means at the time of power recovery after a power failure is in the wheelchair operation mode, the operation of the driving operation switch allows the passenger in the wheelchair to safely operate. Descending
And a power recovery operation control means for performing a wheelchair rescue operation in which the escalator is restarted at a low speed at which the escalator can be restarted and stops when the vehicle arrives at one of the entrances on the upper and lower floors.

According to a second aspect of the present invention, in the control device for a wheelchair / escalator according to the first aspect, after the vehicle arrives at one of the upper and lower floor entrances and stops at a low speed operation by the wheelchair rescue operation, the driving operation switch is reset. It is provided with a mode switching means for restarting in the normal operation mode by being turned on.

According to a third aspect of the present invention, in the control device for a wheelchair / escalator according to the first or second aspect, the operation mode holding means holds the data of the driving direction together with the wheelchair operation mode immediately before the power failure, and performs the operation at the time of power recovery. When the power is restored, the control means performs the wheelchair rescue operation in the same direction as the operation direction before the power failure based on the operation direction data held by the operation mode holding means.

[0020]

According to the first aspect of the present invention, if a power failure occurs during driving in the wheelchair driving mode, the data indicating the wheelchair driving mode immediately before the power failure is held by the driving mode holding means. Then, at the time of power recovery after the power failure, the power recovery time operation control means, if the operation mode data held by the operation mode holding means is a wheelchair operation mode, by turning on a driving operation switch for normal operation operation, the wheelchair is turned on. The escalator is restarted at a low speed at which passengers can safely get off , and a wheelchair rescue operation that stops when the passenger arrives at one of the upper and lower floor entrances is performed.

In this way, if a power failure occurs during driving in the wheelchair driving mode, data indicating the wheelchair driving mode is retained, and after the power is restored, the operator must turn on the driving operation switch for normal driving again. If the driving mode immediately before the power outage was the wheelchair driving mode, the driver was restarted at a low speed at which the wheelchair user could safely get off at the entrance, ensuring the safety of the wheelchair user, and The danger to wheelchair users due to erroneous operation is also avoided.

According to a second aspect of the present invention, in the control device for a wheelchair-cum-escalator according to the first aspect, after the vehicle arrives at one of the upper and lower floor entrances and stops by low-speed driving during wheelchair rescue operation, the driving operation switch is reset. The operation mode is switched from the wheelchair rescue operation to the normal operation so that the mode switching means is restarted in the normal operation mode upon being turned on.

In this way, the operator can return to the normal operation after the power is restored simply by operating the operation switch, thereby simplifying the operation and reducing erroneous operations.

According to a third aspect of the present invention, in the control device for a wheelchair / escalator according to the first or second aspect, the operation mode holding means holds the data of the driving direction together with the wheelchair operation mode immediately before the power failure, and performs the operation at the time of power recovery. When the control unit recovers power, based on the driving direction data held by the operation mode holding unit, the wheelchair rescue operation is performed in the same direction as the driving direction before the power failure, so that the wheelchair can be restarted from any of the upper and lower floors. Allow users to get off at the entrance of their destination floor to improve service.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the configuration of a control device for a wheelchair / escalator according to a common embodiment of the first to third aspects of the present invention. This control device is used for controlling the wheelchair / escalator shown in FIG. A converter device 31 and an inverter device 32 are connected to the operation control circuit 30.
These converter device 31 and inverter device 32
Are connected via a DC bus 33, a three-phase AC power supply 34 is connected to the converter device 31, and a three-phase induction motor 9 for driving an escalator is connected to the inverter device 32. The DC bus 33 is connected to a DC smoothing capacitor 35.

The converter device 31 converts the three-phase power of the three-phase AC power supply 34 to DC during the power running operation of the escalator, and converts the inverter device 3 during the regenerative operation of the escalator 1.
2 has a function of converting the DC power supplied from the DC bus 33 to the DC bus 33 into AC power and regenerating it into the three-phase AC power supply 34, and is usually constituted by a self-extinguishing type semiconductor element, for example, GTR, IGBT or the like.

The inverter device 32 converts DC power supplied from the converter device 31 to the DC bus 33 into AC power having a variable voltage and variable frequency in the wheelchair operation mode and the normal operation mode, and supplies the AC power to the three-phase AC induction motor 9. It has a function of operating this induction motor 9 at a variable speed, and, like the converter device 31, a self-extinguishing type semiconductor element, for example, GT
R, IGBT, etc.

The above-mentioned operation control circuit 30 is provided with a signal h from the wheelchair operation changeover switch 12 and the confirmation buttons 13-1.
6, signals i from 17 to 20, each limit switch 21
28 and the signal k from the normal operation key switch 43, and sends the operation signal s1 in the normal operation mode or the wheelchair operation mode to the converter device 31, and sends the operation signal s2 to the inverter device 32,
Further, it has a function of controlling the three-phase AC induction motor 9 at a variable speed in response to the feedback values f1 and f2. As a specific circuit configuration, the microcomputer 3
6 and a ROM 6 via a bus line 37.
38, a RAM 39, an output signal interface 40, and an input signal interface 41 are connected.

The ROM 38 of the operation control circuit 30 stores operation programs of a normal operation mode and a wheelchair operation mode, and also stores an operation program of a wheelchair rescue operation mode shown in FIG. On the other hand, RAM3
9, a backup battery 42 is connected, and R
The whole area or a part of the AM 39 is backed up by a battery.

The microcomputer 36 of the operation control circuit 30 executes the respective operation programs stored in the ROM 38 to perform the operation control in the normal operation mode and the wheelchair operation mode, respectively, and the operation control in the wheelchair rescue operation mode. , The following functions are achieved. If the escalator 1 is operating in the wheelchair driving mode, the operation mode holding function of storing the wheelchair driving mode and the data indicating the driving direction in the RAM 39; If the operation mode is stored, the normal operation key switch 43
The escalator 1 operates at a low speed in the same direction as before the power outage in response to the signal k from the power supply, and executes a wheelchair rescue operation mode in which the escalator 1 is stopped after arriving at the entrance 3 or 4. Arrives at the entrance 3 or 4 and stops, and in this state, when the signal k from the normal operation key switch 43 is received again, the wheelchair operation mode is canceled to switch to the normal operation mode. is there.

The operation of the control device for a wheelchair / escalator having the above configuration will be described with reference to the flowchart of the driving control shown in FIG. 2 and the timing chart of the driving operation shown in FIG. The microcomputer 36 first determines whether the current operation mode is the normal operation mode or the wheelchair operation mode (step # 1). If the wheelchair operation switch 12 is not operated, the microcomputer 36 determines that the operation mode is the normal operation mode. The operation in the normal operation mode is executed (Step # 2). However, the wheelchair operation switch 12
If is operated, it is determined that the vehicle is in the wheelchair driving mode, and driving in the wheelchair driving mode is executed (step #).
3).

Here, when the wheelchair operation switch 12 is operated at an arbitrary timing t1 during operation in the normal operation mode and the signal h is input to the microcomputer 36 through the input signal interface 41, the microcomputer 36 proceeds to step #. The process proceeds from step 1 to step # 3, where the mode is switched to the wheelchair driving mode, and the data indicating the wheelchair driving mode and the data indicating the driving direction are registered in the RAM 39.

When the microcomputer 36 switches to the wheelchair driving mode, first, the wheelchair step 7a approaches the entrance 3 on the lower floor, and the deceleration limit switch 23 enters.
At the timing t2 when the signal j from the limit switch 23 is input through the input signal interface 41, the operation signals s1 and s2 are output to the converter device 31 and the inverter device 32, respectively. For example, the converter device 31 and the inverter device 32 are controlled to operate at a reduced speed of 3.5 m / min, for example, to reduce the rotational speed of the induction motor 9 (timing t3).

While driving at this speed, the wheelchair Q gets on the escalator 1, and when the rider completes the ride and operates the ride confirmation button 13 at timing t4, The signal i is input to the microcomputer 36 through the input signal interface 41, and the microcomputer 36 outputs the operation signals s1 and s2 of the acceleration command to the converter device 31 and the inverter device 32 according to the input of the signal i. The acceleration is to be controlled up to a speed of 30 m / min.

However, when a power failure occurs at the timing t5 during this acceleration, the microcomputer 36 determines the power failure (step # 4) and waits for the power recovery (step # 5). Due to this power failure, the escalator 1 stops, and the wheelchair steps 7a stop halfway between floors with the wheelchair Q on.

In this state, the RAM 39 receives power from the battery 42 and stores and holds data indicating the wheelchair driving mode and the driving direction.

Thereafter, when the power is restored at the timing t6,
The microcomputer 36 has a normal operation key switch 43.
Is stopped until is operated, and when the normal operation key switch 43 is turned on at timing t7 (step #).
6) It is determined whether the data indicating the driving mode stored in the RAM 39 is the wheelchair driving mode or the normal driving mode (step # 7). If so, the mode is shifted to the wheelchair rescue operation mode, and low-speed operation is started in the same direction as before the power failure (step # 8). The traveling speed in the wheelchair rescue operation mode is, for example, 7.5 m / min, which is a speed at which a wheelchair user can easily get off at the entrance 4.

When the wheelchair step 7a carrying the wheelchair Q at the wheelchair rescue driving speed reaches the entrance 4 on the upper floor at timing t8, the wheelchair Q gets off the escalator 1. In this case, since the escalator 1 is driven at a low speed for rescue of the wheelchair, the wheelchair Q can easily and safely get off the escalator 1.

For a short time thereafter, the low-speed operation of the escalator 1 is continued, and when the wheelchair step 7a reaches the entry deceleration limit switch 26 during the downward wheelchair operation of the upper floor entrance 4 at timing t9, this switch 26 is turned on. Signal j from
Is input to the microcomputer 36 (step #)
9).

At timing t9 when this signal j is input to the microcomputer 36, the wheelchair steps 7a have completely passed through the urging device 6, and therefore have returned to the normal steps 2. Therefore, the microcomputer 36 stops the operation of the escalator 1, sends a normal return command to the urging device 5, and releases the wheelchair rescue operation mode (steps # 10 to # 12).

Thereafter, when the normal operation key switch 43 is turned on again by the attendant at the timing t10, the microcomputer 36 restarts the escalator 1 in the normal operation mode (steps # 13, # 12).

As described above, in the above embodiment, the data indicating whether the operation mode is the normal operation mode or the wheelchair operation mode is stored in the RAM 3 in which the battery is backed up.
9 when the power failure occurs during driving in the wheelchair driving mode, when the normal operation key switch 43 is turned on when the power is restored, the mode identification data in the RAM 39 is checked and the wheelchair driving mode is checked. If so, switch to the wheelchair rescue driving mode of driving at a low speed and resume driving, stop after the wheelchair Q arrives at one of the upper and lower floor entrances 3, 4 and gets off the escalator 1, and then resume normal driving When the key switch 43 is turned on, the mode is switched to the normal operation mode. Therefore, the power failure occurs in the wheelchair operation mode, and the wheelchair Q that has been stopped halfway between floors is turned on after the power is restored. When the vehicle is in the wheelchair rescue operation mode, the vehicle can be safely transported in the same direction as before the power outage and dropped off from the entrance.

The low-speed operation of the escalator 1 after power recovery is normally performed automatically by operating the escalator operation key switch, and the normal return of the urging device after the wheelchair step is returned to the normal step is also automatically performed. It is performed.

Further, since the return from the wheelchair rescue driving mode to the normal driving mode is also performed by operating the normal driving key switch, there is no need for the attendant to perform complicated driving operations, and damage to the steps and other equipment due to erroneous operations. Can be prevented from occurring.

The invention of claims 1 to 3 is not limited to the above embodiment. For example, the operating speed of the escalator 1 in the wheelchair rescue operation mode is 7.5 m.
The speed is not limited to / min, and may be a little higher than that as long as the wheelchair Q can be safely transported and dropped off at the entrance, and further lower depending on the installation location.

In the above-described embodiment, the case where the mode is shifted to the wheelchair driving mode and the power failure occurs at the timing t5 during the acceleration to the specified speed has been described. Regardless of the timing of the power failure, the operation after the power recovery is the same.

In the above embodiment, when a power failure occurs during the ascending operation, the ascending operation in the same direction is automatically performed at a low speed even if the operation key switch is operated in either the up or down direction even after the power is restored. However, the invention is not particularly limited in the inventions of claims 1 and 2, and the operator operates the ascending or descending driving key switch in consideration of the direction, so that the wheelchair is moved in the same direction as before the power failure. Rescue can be driven.

In the wheelchair and escalator 1, apart from the power recovery after the power failure, several places are provided on the middle inclined portion of the escalator 1 in order to ensure the safety of the wheelchair user and the staff during normal wheelchair driving. In some cases, a "stop button" for stopping wheelchair driving may be placed,
In some cases, a "restart button" for restarting wheelchair operation when an emergency is released is also installed. However, if such an operation button is provided, if the restart button has the same shape as a normal button switch, even a general passenger can easily operate the restart button. A problem that would occur. Therefore, FIG.
As shown in FIG. 7, the restart button 46 is a key switch of a type different from the normal button-type stop button 45, so that the restart cannot be performed unless an operator operates the key by a key, so that the wheelchair user can use the key switch. Safety can be ensured.

[0049]

As described above, according to the first aspect of the present invention,
If a power failure occurs during driving in the wheelchair driving mode, the operation mode holding means holds data indicating the wheelchair driving mode immediately before the power failure, and when the power is restored after the power failure, the operation control means at the time of power recovery includes the operation mode holding means. If the driving mode data held by the vehicle is in the wheelchair driving mode, by turning on the driving operation switch for normal driving operation, the escalator is restarted at a low speed at which the passenger in the wheelchair can safely get off , and either the upper or lower floor The wheelchair rescue operation is stopped when the vehicle arrives at the entrance of the vehicle, so if a power failure occurs while driving in the wheelchair operation mode, the data indicating the wheelchair operation mode is retained and the operation is performed after the power is restored. Even if the operator performs the operation of turning on the normal operation switch for the driver again, if the operation mode immediately before the power failure was the wheelchair operation mode, User to resume operation at a low speed that can get off safely at entrance and stopped at the entrance, it is possible to unload the wheelchair user can be assured the safety of the wheelchair user.

In addition, restarting of the wheelchair rescue operation at the time of power recovery after a power failure can be performed only by operating the normal operation switch without operating the separately provided operation means. In addition, the danger of the wheelchair user due to the operation can be avoided, and the risk of damage to the device due to erroneous operation can be reduced.

According to the second aspect of the present invention, in the control device for the wheelchair-cum-escalator according to the first aspect, further, the wheelchair rescue operation causes the vehicle to arrive at one of the upper and lower floor entrances and stop by low-speed operation, and then stop the operation. The operation mode is switched from the wheelchair rescue operation to the normal operation so that the mode switching means is restarted in the normal operation mode by re-input of the power supply. Returning to the normal operation later can be performed only by operating the driving operation switch by the operator, and the operation can be simplified and erroneous operations can be reduced.

According to the third aspect of the present invention, in the control device for a wheelchair / escalator according to the first or second aspect, the driving mode holding means holds the data of the driving direction together with the wheelchair driving mode immediately before the power failure, and The hourly driving control means performs a wheelchair rescue operation in the same direction as the driving direction before the power failure based on the driving direction data held by the operation mode holding means when the power is restored. In addition to the effect of the second aspect, when power is restored after a power failure, the wheelchair rescue operation in the direction of the destination floor can be automatically restarted, and the service can be improved.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a common embodiment of the inventions of claims 1 and 2;

FIG. 2 is a flowchart showing a control operation of the embodiment.

FIG. 3 is a timing chart showing a control operation of the embodiment.

FIG. 4 shows a wheelchair operation stop button /
The front view of the installation panel of a restart button.

FIG. 5 is a mechanism diagram of a general wheelchair / escalator.

FIG. 6 is a timing chart showing a control operation of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Escalator 2 Step 3, 4 Entry and exit 5, 6 Urging device 7a, 7b, 7c Wheelchair step 9 Three-phase AC induction motor 12 Wheelchair operation changeover switch 13, 17 Driving confirmation operation operation button 21, 22 Deceleration start limit switch 23, 26 boarding deceleration limit switch 30 operation control circuit 31 converter device 32 inverter device 36 microcomputer 38 ROM 39 RAM 42 backup battery 43 normal operation key switch

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B66B 23/00-29/08

Claims (3)

(57) [Claims] An escalator in which a plurality of steps are connected endlessly is arranged between each entrance on the upper and lower floors, and the escalator is formed in a normal operation mode and an appropriate number of steps at a predetermined position are formed as wheelchair steps. In a control device for a wheelchair / escalator that switches between a driving mode and a wheelchair driving mode, a driving operation switch for starting operation in a normal driving mode, and driving mode holding means for storing data indicating a driving mode immediately before a power failure When the operation mode data held by the operation mode holding means at the time of power recovery after a power failure is a wheelchair operation mode, by turning on the operation operation switch, the escalator at a low speed at which a passenger in a wheelchair can safely get off . A power recovery operation control unit that performs a restart and performs a wheelchair rescue operation that stops when the vehicle arrives at one of the upper and lower floor entrances. A control device for a wheelchair and escalator comprising: 2. The control device for a wheelchair and escalator according to claim 1, further comprising: turning on the driving operation switch after arriving at one of the upper and lower floors at a low speed operation and stopping after the wheelchair rescue operation. A control device for a wheelchair and escalator comprising a mode switching means for restarting in a normal operation mode. 3. The control device for a wheelchair and escalator according to claim 1, wherein the operation mode holding means holds data of a driving direction together with a wheelchair operation mode immediately before a power failure, and the operation control during power recovery. A control device for a wheelchair and escalator, characterized in that when the power is restored, the wheelchair rescue operation is performed in the same direction as the driving direction before the power failure based on the driving direction data held by the operation mode holding means.