JPH1171077A - Inside-car atmospheric pressure control device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep atmospheric pressure in a car adequately by controlling inside-car atmospheric pressure by providing command to a pump and a flow adjusting valve so that the inside-car atmospheric pressure detected by a barometer varies according to a predetermined atmospheric pressure adjusting pattern. SOLUTION: A car 1 of an elevator is structured such that it is sealed during door closing, and a barometer 2 is provided in the car 1. The barometer 2 measures atmospheric pressure in the car 1, and the measured inside-car atmospheric pressure is transformed into digital signals by an A/D converter 3, and is input into a control circuit 5 through an input/output circuit 4. The control circuit 5 controls atmospheric pressure so that the measured inside-car atmospheric pressure varies in a atmospheric pressure adjusting pattern prestored in a memory 10. A human body abnormal button 6 is provided in the car 1, and is pressed when passenger's body has abnormality by variation of the atmospheric pressure in the car 1. When the human body abnormal button 6 is pressed, the control circuit 5 controls atmospheric pressure in protecting operation mode prestored in the memory 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car air pressure control device for appropriately controlling the air pressure in an elevator car.

[0002]

2. Description of the Related Art Generally, in a high-rise and high-speed elevator, it is required to control the air pressure in a car.
This is because the traveling of the elevator rapidly changes the air pressure in the car, which may cause discomfort to passengers due to the change in air pressure.

Conventionally, the control of the air pressure in a car of an elevator is such that when the elevator moves down, the inside of the car is pressurized, and when the elevator rises, the inside of the car is depressurized. This controls the air pressure in the car to approach the air pressure at the destination floor. There are also elevators that do not particularly control the air pressure.

[0004]

However, even when controlling the air pressure in the car, if the air pressure in the car is not properly controlled, passengers may feel uncomfortable. It is also important that when an abnormality occurs in the passenger's body due to a sudden change in air pressure, a protection operation for the abnormality can be performed. In particular, passengers of a high-rise, high-speed elevator may suffer from the following symptoms due to a difference between an internal pressure (living body side) and an external pressure (environmental pressure) due to a rapidly changing air pressure. (1) The tympanic membrane is pushed, and the sound transmission becomes poor. (2) Even in the case of a healthy body, the Eustachian tube that connects the middle ear cavity and the pharyngeal cavity is opened, and the ears are crisp. (3) When the nose is blocked by a cold or allergy, the eustachian tube is closed, and if the external pressure (environmental pressure) and the internal pressure (living body side) cannot be equalized, excessive force will cause a problem. It is more likely to cause ear and inner ear disorders.

[0005] It is an object of the present invention to control the pressure in an elevator so that the pressure in the car can be appropriately maintained, and a protection operation can be performed when an abnormality occurs in the passenger's body due to a sudden change in the pressure. It is to provide a device.

[0006]

According to a first aspect of the present invention, there is provided an elevator air pressure control device which detects an air pressure in an elevator car, sends air into the car, or sucks air in the car. Pump, a flow control valve for adjusting the amount of inflow air and outflow air from the pump into the car, and a pump for changing the car internal pressure detected by the barometer according to a predetermined pressure adjustment pattern. And a control circuit for controlling the internal pressure of the car by issuing a command to the flow regulating valve.

[0007] In the elevator air pressure control device according to the first aspect of the present invention, the control circuit includes a pump and a flow control valve such that the internal pressure of the car detected by the barometer changes according to a predetermined air pressure adjustment pattern. To control the air pressure inside the car.

According to a second aspect of the present invention, in the elevator air pressure control device according to the first aspect of the present invention, there is provided a car abnormality button for performing a push operation when the body is abnormal due to a change in the air pressure in the car. And the control circuit controls the air pressure in a predetermined protection operation mode when the body abnormality button is pressed.

In the elevator air pressure control device according to the second aspect of the present invention, in addition to the operation of the first aspect of the present invention, when the abnormal body button in the cab is pressed, the control circuit operates in a predetermined protection operation mode. Pressure control is performed.

According to a third aspect of the present invention, in the elevator pressure control apparatus according to the first aspect of the present invention, the control circuit is configured to perform a predetermined protective operation when the rate of change of the pressure in the car exceeds a physiological limit value. The air pressure is controlled by the mode.

According to a third aspect of the present invention, in addition to the operation of the first aspect, the control circuit monitors the rate of change of the air pressure in the car and determines the rate of change of the air pressure in the car in advance. When the detected physiological limit value is exceeded, the atmospheric pressure is controlled by a predetermined protection operation mode.

According to a fourth aspect of the present invention, in the elevator pressure control apparatus according to the second or third aspect,
The predetermined protection operation mode uses a protection operation mode in which the traveling pattern of the elevator is switched to the low-speed pattern to extend the time until arrival at the destination floor, and to control the rate of change of the atmospheric pressure in the car to be smaller.

[0013] In the elevator air pressure control device according to the invention of claim 4, in addition to the operation of the invention of claim 2 or 3, the control circuit switches the traveling pattern of the elevator to the low speed pattern and arrives at the destination floor. Extend the time of
The pressure change rate in the car is controlled to be smaller.

According to a fifth aspect of the present invention, there is provided the elevator air pressure control device according to the second or third aspect of the present invention.
The predetermined protection operation mode uses the protection operation mode in which the traveling pattern of the elevator is switched to the low-speed pattern, and the flow control valve is opened to make the inside pressure of the car equal to the outside pressure.

According to a fifth aspect of the present invention, in addition to the operation of the second or third aspect of the present invention, the control circuit switches the traveling pattern of the elevator to the low-speed pattern and sets the flow rate adjusting valve. Open to make the inside pressure of the car equal to the outside pressure.

According to a sixth aspect of the present invention, in the elevator air pressure control device according to the first aspect of the present invention, the predetermined air pressure adjusting pattern is such that the car door at the departure floor is closed to the car door at the destination floor. At this time interval, an air pressure adjustment pattern is used in which the inside air pressure of the car is changed at a constant rate from the air pressure of the departure floor to the air pressure of the destination floor.

In the elevator air pressure control apparatus according to the sixth aspect of the present invention, in addition to the operation of the first aspect of the present invention, the control circuit is configured to perform a process from the closing of the car at the departure floor to the opening of the car at the destination floor. At time intervals, the car internal pressure is changed at a constant rate from the departure floor pressure to the destination floor pressure.

According to a seventh aspect of the present invention, in the elevator air pressure control device according to the first aspect of the present invention, the predetermined air pressure adjustment pattern is a predetermined time period from when the car door is closed at the departure floor to when the door is opened at the destination floor. In the previous time interval, the car internal pressure is changed at a constant rate from the departure floor pressure to the destination floor pressure, and the car internal pressure is once overshot from a predetermined time before the door opens at the destination floor. Then, when the door is opened at the destination floor, the air pressure adjustment pattern is used to return to the pressure at the destination floor.

According to a seventh aspect of the present invention, in the elevator air pressure control device, in addition to the operation of the first aspect of the invention, the control circuit may further comprise a control circuit which is provided before the predetermined time when the car is closed at the departure floor and the door is opened at the destination floor. In the time interval up to, the inside pressure of the car is changed at a constant rate from the pressure of the departure floor to the pressure of the destination floor, and the pressure inside the car is once overshot from a predetermined time before the door opens at the destination floor. When the door opens at the destination floor, it returns to the pressure of the destination floor.

According to an eighth aspect of the present invention, there is provided the elevator air pressure control device according to the sixth or seventh aspect.
The car starts running after a predetermined time has passed from the closing of the car door on the departure floor, and the time interval in the air pressure adjustment pattern is extended.

According to an eighth aspect of the present invention, in addition to the operation of the sixth or seventh aspect of the present invention, in the elevator air pressure control device, the car starts to travel after a lapse of a predetermined time from the closing of the car at the departure floor. , The time interval in the air pressure adjustment pattern is extended, and the rate of change of the air pressure in the car is reduced.

According to a ninth aspect of the present invention, in the elevator pressure control apparatus according to the sixth or seventh aspect,
The door of the car is opened after a lapse of a predetermined time from the arrival of the car at the destination floor, and the time interval in the air pressure adjustment pattern is extended.

According to a ninth aspect of the present invention, in addition to the effect of the sixth or seventh aspect, the elevator pressure control apparatus opens the car door after a lapse of a predetermined time from the arrival of the car at the destination floor. , The time interval in the air pressure adjustment pattern is extended, and the rate of change of the air pressure in the car is reduced.

[0024]

Embodiments of the present invention will be described below. FIG. 1 is a configuration diagram of an air pressure control device for an elevator according to an embodiment of the present invention.

The car 1 of the elevator has a closed structure when the door is closed, and a barometer 2 is provided in the car 1. The barometer 2 measures the barometric pressure in the car 1. The barometric pressure in the car measured by the barometer 2 is converted from an analog signal to a digital signal by an A / D converter 3, and the input / output circuit 4 to a control circuit 5. The control circuit 5 stores the measured car internal pressure in the memory 1
Atmospheric pressure control is performed so as to change according to the atmospheric pressure adjustment pattern stored in advance at 0.

Further, an abnormal body button 6 is provided in the car 1, and is pressed when there is an abnormality in the passenger's body due to a change in the atmospheric pressure in the car 1. When the abnormal body button 6 is pressed, the operation signal is input to the control circuit 5 via the input / output circuit 4, and the control circuit 5 controls the air pressure in the protection operation mode stored in the memory 10 in advance.

Further, the air in the car 1 is made to flow in and out by a pump 7, the amount of the air is adjusted by a flow control valve 8, and the air in the car 1 is cleaned by an air filter 8. Do. When pressurizing the air pressure in the car 1, the pump 7
And the flow control valve 8 controls the flow rate of the air. On the other hand, when the air pressure in the car 1 is reduced, the pump 7 sucks the air in the car 1 and controls the flow rate of the air by the flow rate adjusting valve 8. The control circuit 5 outputs a command to the pump 7 and the flow rate control valve 8 based on the pressure adjustment pattern and the protection operation mode stored in the memory 10 in advance to control the pressure in the car 1.

FIG. 2 is a flow chart showing the processing contents of the car internal pressure control and the protection operation in the control circuit 5.
The car internal pressure control and the protection operation in the control circuit 5 are started after the elevator car door is opened.

After the car door is closed, the control device 8 reads the air pressure adjustment pattern stored in the memory 10 in advance, and performs an operation of increasing or decreasing the air pressure in the car according to the air pressure adjustment pattern (S1). Then, as a result of the operation for controlling the air pressure, it is determined whether or not the rate of change of the air pressure in the car exceeds a physiological limit value at which a physiological problem occurs for the passenger (S).
2). If the rate of change of the air pressure in the car is less than the physiological limit value, it is next determined whether or not the operation necessary for the air pressure control according to the air pressure adjustment pattern has been completed (S3). When necessary operations according to the barometric pressure adjustment pattern have been completed,
The barometric pressure control ends.

On the other hand, if it is determined in step S3 that the operation necessary for controlling the air pressure has not been completed, it is determined whether or not the abnormal body button 6 has been pressed (S4). If not, the process returns to step S1 to continue the atmospheric pressure control.

If it is determined in step S2 that the rate of change of the air pressure in the car exceeds the physiological limit value, it is determined that the air pressure control in the car is not operating properly, and the protection operation mode is controlled. Perform (S5). Similarly, when the body abnormality button 6 is pressed in the determination in step S4, the protection operation mode is controlled (S5).

In this protection operation mode, for example, the traveling pattern of the elevator is switched to the low-speed pattern to extend the time until arrival at the destination floor, and to control the rate of change of the atmospheric pressure in the car to be smaller. In this case, when controlling the protection operation mode, the control circuit 5 notifies the traveling control device of the elevator to that effect. Upon notification from the control circuit 5 that the protection operation mode has been set, the elevator traveling control device switches the elevator traveling pattern to the low-speed pattern. With that low-speed pattern,
The control circuit 5 controls the rate of change of the atmospheric pressure in the car to be smaller.

In the protection operation mode, it is possible to switch the running pattern of the elevator to the low-speed pattern and open the flow control valve 8 to make the car internal pressure equal to the external pressure. That is, after switching the running pattern of the elevator to the low-speed pattern, the flow control valve 8 is fully opened to make the external pressure equal to the car internal pressure.
As a result, passengers are transported with a gradual change in air pressure.

Next, an air pressure adjustment pattern according to the embodiment of the present invention will be described. FIG. 3 is an explanatory diagram of the first air pressure adjustment pattern C1 and the second air pressure adjustment pattern C2 in the embodiment of the present invention. FIG. 3 shows an air pressure adjustment pattern during an elevator descent operation.

In FIG. 3, the vertical axis indicates the change in the air pressure in the car, where the departure floor pressure is 0 and the destination floor pressure is 100. The horizontal axis indicates the traveling time of the car, and the time t
1 is the time when the car is closed and the traveling starts, time t2 is the time when the car arrives at the destination floor and the door is started to open, and time t3 is the time before a predetermined time before the time t2. A characteristic curve A is a non-control curve indicating a change in air pressure in the car during elevator traveling when there is no air pressure control in the car, and a characteristic curve B is a limit value indicating a limit value of a pressure change rate at which a passenger causes a physiological problem. The curve and the characteristic curve C1 are the first air pressure adjustment pattern of the present invention,
The characteristic curve C2 is the second air pressure adjustment pattern of the present invention.

Here, in the non-control curve A without the car internal pressure control, the rate of change during steady running (linear portion) exceeds the rate of change of the limit value curve B. Therefore, in the embodiment of the present invention, the first pressure adjustment pattern C1 is such that the pressure difference from the departure floor pressure to the destination floor pressure changes at a constant rate of change so as not to exceed the rate of change of the limit value curve B. Is used. The first air pressure adjustment pattern C1 that changes at such a constant change rate can be easily calculated if the travel time of the car and the air pressure difference (the air pressure difference between the departure floor and the destination floor) are known. That is,
Since the pressure difference between the departure floor pressure and the destination floor pressure only depends on the ascent and descent of the building, it can be easily known, and the travel time of the car can be easily known from the travel control data. Therefore, the first
Can be easily calculated.

The control circuit 5 reads the internal pressure of the car actually running from the barometer 2 via the A / D converter 3, and controls the internal pressure of the car to change in accordance with the first pressure adjustment pattern C1. I do. That is, the control is performed so as to compensate for the difference area D1 between the no-control curve A and the first air pressure adjustment pattern C1 at the time when the vehicle starts running. Difference area D1
In the control, a command to send out air to the pump 7 is issued, and control is performed to pressurize the inside of the car by the flow rate adjusting valve 8. On the other hand, when the vehicle approaches the destination floor, an air suction command is issued to the pump 7 so as to compensate for the difference area D2 between the non-control curve A and the first air pressure adjustment pattern C1, and the car is operated by the flow rate adjusting valve 8 to compensate for the difference. Control to reduce the pressure inside is performed.

Thus, since the car internal pressure is controlled in accordance with the first air pressure adjustment pattern, the car internal pressure can be controlled to the target floor pressure below the limit change rate (slope) of the limit value curve B, and the passenger can be transported. become.

The first pressure adjustment pattern C1 described above
Is a barometric pressure adjustment pattern for controlling the rate of change in air pressure inside the car at a constant value. As shown by a second barometric pressure adjustment pattern C2 in FIG. 3, a time t2 when the car arrives at the destination floor (door opening starts).
By a time t3 earlier than a predetermined time, the pressure inside the car is changed at a constant rate from the pressure of the departure floor to the pressure of the destination floor, and the pressure inside the car is changed from the time t3 before the predetermined time when the door is opened at the destination floor. The air pressure of the destination floor may be restored at time t2 when the door is opened at the destination floor by overshooting once.

That is, during the time from the time point t3 to the time point t2 when the vehicle arrives at the destination floor, the control is performed by a series of car internal pressure adjustment patterns in which an overshoot is applied to the difference area D3 having a peak value of about 10% of the air pressure difference. Arrive near the air pressure on the destination floor.

In the first air pressure adjustment pattern C1, the internal pressure of the car simply increases at a constant rate. However, in the second air pressure adjustment pattern C2, since the overshoot is performed before arrival, the air pressure decreases. While arriving, it is possible to provide passengers with a feeling of comfort that has not been experienced in conventional elevators.

Next, FIG. 4 is an explanatory diagram of the third air pressure adjustment pattern C3 and the fourth air pressure adjustment pattern C4 in the embodiment of the present invention. FIG. 4 shows an air pressure adjustment pattern during an elevator descent operation. The third air pressure adjustment pattern C3 and the fourth air pressure adjustment pattern C4 are different from the first air pressure adjustment pattern C1 and the second air pressure adjustment pattern C2 shown in FIG. The car starts running at time t1 after a predetermined time has elapsed from t0, and the time interval in the air pressure adjustment pattern is extended.

In FIG. 4, the vertical axis indicates the change in air pressure in the car, where the departure floor pressure is 0 and the destination floor pressure is 100. The horizontal axis indicates the traveling time of the car, and the time t
0 is a time when the car is closed, time t1 is a time when the car starts running, time t2 is a time when the car arrives at the destination floor and the door is started to open, and time t3 is a time before a predetermined time before the time t2. A characteristic curve A is a non-control curve indicating a change in air pressure in the car during elevator traveling when there is no air pressure control in the car, and a characteristic curve B is a limit value indicating a limit value of a pressure change rate at which a passenger causes a physiological problem. The curve and the characteristic curve C3 are the third air pressure adjustment pattern of the present invention, and the characteristic curve C4 is the fourth air pressure adjustment pattern of the present invention.

Here, the change in air pressure inside the car depends on the time from the closing of the door at the departure floor to the opening of the door at the destination floor, and the elevating process. If
Pressure changes will be less gradual, reducing the likelihood of passengers having physiological problems. First air pressure adjustment pattern C1
Then, passengers enter the cab and start running immediately after closing the door. Therefore, the time until the door is opened after arriving at the destination floor is shortened.

Therefore, in the third air pressure adjustment pattern C3 and the fourth air pressure adjustment pattern C4, the passenger starts running at a time t1 after a lapse of a predetermined time from the time t0 at which the door enters the door, and from the time the door is closed to the time the door is opened. To increase the time. In this case, at the time point t0 when the door is closed, an announcement in the car cabin is sent, such as "Pressure adjustment is in progress. Please wait for a while." Since the air pressure control is started from the time t0 when the door is closed, the time from when the door is closed to when the door is opened is longer than the first air pressure adjustment pattern C1 and the second air pressure adjustment pattern C2. Therefore, it is possible to control the air pressure at the destination floor with a constant change by a more gradual change in the air pressure. In this case, the amount of pressurization in the difference area D1 in the first pressure adjustment pattern C1 increases, and the amount of pressure reduction in the difference area D2 decreases.

The fourth air pressure adjustment pattern C4 shown in FIG.
In the same manner as in the second air pressure adjustment pattern C2, the internal pressure of the car is changed from the air pressure of the departure floor to the air pressure of the destination floor by the time t3 when the car arrives at the destination floor (door opening starts) and a predetermined time before the time t3. At a constant rate of change until a predetermined time before the door opens at the destination floor, at time t3, the car internal pressure is once overshot and returned to the target floor pressure at time t2 when the door is opened at the destination floor. I have.

That is, during the time from time t3 to time t2 when the vehicle arrives at the destination floor, the control is performed in a series of cage internal pressure adjustment patterns in which an overshoot is applied to the difference area D3 having a peak value of about 10% of the air pressure difference. Arrive near the air pressure on the destination floor. In the fourth air pressure adjustment pattern C4, the overshoot is performed before the arrival, so that the vehicle arrives with a reduced air pressure, and it is possible to provide passengers with a feeling of comfort that has not been experienced in conventional elevators. .

Next, FIG. 5 is an explanatory diagram of a fifth air pressure adjustment pattern C5 and a sixth air pressure adjustment pattern C6 in the embodiment of the present invention. FIG. 5 shows an air pressure adjustment pattern during an elevator descent operation. The fifth air pressure adjustment pattern C5 and the sixth air pressure adjustment pattern C6 are different from the first air pressure adjustment pattern C1 and the second air pressure adjustment pattern C2 shown in FIG. 3 when the car arrives at the destination floor. Time point t4 after a lapse of a predetermined time from t2
The door of the car is opened to extend the time interval in the air pressure adjustment pattern.

In FIG. 5, the vertical axis represents the change in the air pressure in the car, where the departure floor pressure is 0 and the destination floor pressure is 100. The horizontal axis indicates the traveling time of the car, and the time t
1 is the time when the car is closed and the car starts running, time t2 is the time when the car arrives at the destination floor, and time t4 is the time when the door starts to open. A characteristic curve A is a non-control curve indicating a change in air pressure in the car during elevator traveling when there is no air pressure control in the car, and a characteristic curve B is a limit value indicating a limit value of a pressure change rate at which a passenger causes a physiological problem. The curve and the characteristic curve C5 are the fifth air pressure adjustment pattern of the present invention, and the characteristic curve C6 is the sixth air pressure adjustment pattern of the present invention.

Here, in the third air pressure adjustment pattern C3 and the fourth air pressure adjustment pattern C4 shown in FIG. 4, an announcement is made at the time of closing the door, and running starts after a lapse of a predetermined time. The time until opening is extended to perform gradual air pressure control. In the fifth air pressure adjustment pattern C5 and the sixth air pressure adjustment pattern C6, an announcement is made after arrival at the destination floor, and the door is opened after a predetermined time elapses. Open.

At time t2, the elevator has arrived at the destination floor, but from that time t2, an announcement was made to the car, and the air pressure was being adjusted. Please wait for a while. It is extended until t4 (several seconds after the end of the announcement). Thereby, the time from door closing to door opening is extended. Thereby, a gradual change in air pressure can be provided to the passenger.

The sixth air pressure adjustment pattern C6 shown in FIG.
Then, by the time t2 when the car arrives at the destination floor, the pressure inside the car is changed at a constant rate from the pressure of the departure floor to the pressure of the destination floor, and the pressure inside the car is temporarily exceeded from the time t2 when the car arrives at the destination floor. Time to shoot and open at the destination floor t
In step 4, the pressure is returned to the atmospheric pressure of the destination floor.

That is, the time from the time t2 when the vehicle arrives at the destination floor to the time t4 when the door is opened at the destination floor, and the pressure difference of 10
The control is performed by a series of car air pressure adjustment patterns in which an overshoot is applied to the difference area D3 having a peak value of about%, and the vehicle approaches the air pressure of the destination floor and arrives. In the sixth air pressure adjustment pattern C6, since the overshoot is performed before the door is opened, it is possible to provide the passenger with comfort that has not been experienced in the conventional elevator. Although the start time of the overshoot is the arrival time t2 of the car at the destination floor, it is not always necessary to match the arrival time t2, and any time may be used as long as the peak value can be about 10% of the atmospheric pressure difference.

[0054]

As described above, according to the present invention, by controlling the inside pressure of the car, it is possible to suppress the physiological problems of the passengers in the high-rise / high-speed elevator, and to provide the passengers with more comfort. Also, when the car internal pressure control does not operate normally, or when the passenger complains of a physical abnormality despite the normal operation, it is possible to switch to the protection operation mode, so that the passenger can be transported safely. .

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an elevator air pressure control device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing processing contents of a car internal pressure control and a protection operation in a control circuit according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram of a first air pressure adjustment pattern and a second air pressure adjustment pattern according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram of a third air pressure adjustment pattern and a fourth air pressure adjustment pattern according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram of a fifth air pressure adjustment pattern and a sixth air pressure adjustment pattern according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Basket 2 Barometer 3 A / D converter 4 I / O circuit 5 Control circuit 6 Physical abnormality button 7 Pump 8 Flow control valve 9 Air filter 10 Memory

Claims (9)

[Claims] 1. A barometer for detecting an air pressure in a car of an elevator, a pump for sending air into or sucking air from the car, and an amount of air flowing into the car from the pump. And a flow control valve for adjusting the amount of outflow air, and issuing a command to the pump and the flow control valve so that the internal pressure of the car detected by the barometer changes according to a predetermined pressure control pattern. An elevator car internal pressure control device, comprising: a control circuit for controlling an air pressure. 2. An abnormal body button for performing a push operation when there is an abnormality in the body due to a change in atmospheric pressure in the car is provided in the car room, and the control circuit is configured to execute the operation when the abnormal body button is pressed. 2. The car internal pressure control device for an elevator according to claim 1, wherein pressure control is performed by a predetermined protection operation mode. 3. The control circuit according to claim 1, wherein when the rate of change of the pressure in the car exceeds a physiological limit value, the control circuit controls the pressure in the predetermined protection operation mode. 2. The elevator car internal pressure control apparatus according to claim 1. 4. The protection operation mode in which the predetermined protection operation mode switches a traveling pattern of an elevator to a low-speed pattern to extend the time until arrival at a destination floor, and controls the rate of change in air pressure in the car to be smaller. The elevator car internal pressure control device according to claim 2 or 3, wherein: 5. The protection operation mode, wherein the predetermined protection operation mode is a protection operation mode in which an elevator traveling pattern is switched to a low-speed pattern, and the flow control valve is opened to make the car internal pressure equal to the external pressure. The car internal pressure control device for an elevator according to claim 2 or 3, wherein: 6. The predetermined atmospheric pressure adjustment pattern is such that, during a time interval from the closing of the car at the departure floor to the opening of the car at the destination floor, the internal pressure of the car is changed from the pressure at the departure floor to the pressure at the destination floor. 2. The elevator car internal pressure control device according to claim 1, wherein the pressure adjustment pattern changes at a constant rate of change up to a predetermined value. 7. The predetermined atmospheric pressure adjustment pattern is such that, in a time interval from a time when a car is closed at a departure floor to a time before a door is opened at a destination floor, a pressure inside the car is reduced from a pressure at a departure floor to a destination floor. A pressure adjustment pattern that changes at a constant rate of change to the air pressure of the destination, overshoots the air pressure in the car once from a point in time before the door opens at the destination floor, and returns to the air pressure of the destination floor when the door opens at the destination floor The elevator car internal pressure control device according to claim 1, wherein: 8. The vehicle according to claim 6, wherein the car starts running after a lapse of a predetermined time from the closing of the car door on the departure floor, and a time interval in the air pressure adjustment pattern is extended. An elevator car internal pressure controller according to claim 7. 9. The car door is opened after a lapse of a predetermined time from arrival of the car at the destination floor, and a time interval in the air pressure adjustment pattern is extended. An elevator car internal pressure controller according to claim 7.