JP2007168932A - Elevator control device and elevator control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an elevator control device capable of accurately detecting presence/absence of persons inside a car before start of earthquake restoration diagnostic operation. <P>SOLUTION: This elevator control device is provided with a car camera 2 arranged inside the car 1 of an elevator and imaging inside of the car 1; a person presence/absence detecting device 3 for detecting the presence/absence of persons inside the car 1, based on camera images obtained by the car camera 2; a seismic sensor 9 sensing an earthquake; and an elevator control panel 8 for performing earthquake restoration diagnostic operation, when absence of persons inside the car 1 is detected by the person presence/absence detecting device 3 after an earthquake is sensed by the seismic sensor 9. Based on the camera image, the elevator control device accurately detects the presence/absence of persons inside the car 1 before start of the earthquake restoration diagnostic operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator control device and an elevator control method for detecting the presence or absence of a person in a car when an elevator car stops in a hoistway due to an earthquake and then shifting to an earthquake restoration diagnosis operation.

  Normally, when an elevator car stops in a hoistway due to an earthquake, etc., after moving the car to the nearest floor using electric power supplied from private power generation facilities etc., the car stops at the landing on the nearest floor A door-opening operation is performed to rescue passengers who are trapped in the car. In addition, as an elevator control device that implements such an operation, an image pickup device that is installed in the car and reflects the inside of the car, and a passenger who determines whether there is a passenger in the car from the image in the car imaged by the image pickup device By providing a confirmation device and an operation control device that moves only the car determined to have passengers by this passenger confirmation device to the nearest floor, it saves the power of the standby power supply and gives priority to only the passenger car There has been proposed a system that allows a passenger to be rescued promptly and rescues passengers promptly (see, for example, Patent Document 1).

JP 2002-249289 A

  In the elevator system, after the rescue operation is carried out after the earthquake has occurred and the passengers in the car are rescued, before the normal operation is resumed, whether or not each device and various operations of the elevator system are normal. Some earthquake recovery diagnosis operations are automatically performed. In such an earthquake restoration diagnosis operation, after a passenger in the car gets off, the door is closed to make the car unattended, and the car is moved at low speed across the upper and lower terminal floors while performing a predetermined diagnosis. And when there is no problem in various diagnostic results, normal operation is resumed. Here, to make the car unattended during earthquake recovery diagnosis operation, if elevator equipment and facilities are damaged due to the shaking of the earthquake, depending on the extent of the damage, This is because it may be necessary to make a sudden stop.

  However, even after an earthquake occurs, even if the passenger is locked in the car without performing the door opening operation or the door opening operation is performed after the nearest floor stop, There is a possibility that suddenly ill people cannot go out of the car and are left in the car, and there is a risk that the earthquake recovery diagnosis operation will be started with passengers in the car there were.

  A method of detecting the presence or absence of passengers in the car by a scale device that measures the load in the car before the start of the earthquake restoration diagnosis operation is also conceivable. However, after the occurrence of the earthquake, the main rope for suspending the car may be caught by equipment in the hoistway due to the shaking of the earthquake, and the output of the scale device may not accurately indicate the load load in the car. For this reason, the said scale apparatus was not able to be utilized in order to detect the presence or absence of the passenger in a cage | basket | car after an earthquake occurrence.

  In addition, in patent document 1, there is no description regarding the means to detect the presence or absence of the passenger in a cage | basket | car before the earthquake restoration diagnosis driving | operation start, and the said problem was not able to be solved.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator control device that can accurately detect the presence or absence of a person in a car before starting an earthquake restoration diagnosis operation. Is to provide.

  An elevator control device according to the present invention is installed in an elevator car and detects whether a person is in the car based on a camera in the car that images the car and a camera image captured by the camera in the car. A detection device, an earthquake detector that detects an earthquake, and an elevator control panel that performs an earthquake recovery diagnosis operation when no person in the car is detected by the presence / absence detection device after the earthquake is detected by the earthquake detector It is equipped with.

  The elevator control method according to the present invention includes a step of detecting an earthquake by an earthquake detector, and the presence / absence of a person in the car based on a camera image taken by the car camera after the earthquake is sensed by the earthquake detector. Is detected by the person presence / absence detection device, and when the person presence / absence detection device detects the absence of a person in the car, a step of performing an earthquake recovery diagnosis operation is provided.

  The elevator control method according to the present invention includes a step of detecting an earthquake by an earthquake detector, a step of stopping the elevator car at the nearest floor after the earthquake is detected by the earthquake detector, and opening the door. A step of closing the door after a lapse of a predetermined time since opening, a step of detecting the presence or absence of a person in the car by a person presence / absence detection device based on a camera image captured by the car camera after the door closing is completed, and a person And a step of performing an earthquake restoration diagnosis operation when the presence / absence detection device detects that there is no person in the car.

  The present invention includes an in-car camera that is installed in an elevator car and images the inside of the car, a person presence / absence detecting device that detects the presence / absence of a person in the car based on a camera image captured by the in-car camera, And an elevator control panel that performs earthquake restoration diagnosis operation when no person in the car is detected by the person presence / absence detection device after an earthquake is detected by the earthquake detector. Thus, it is possible to accurately detect the presence or absence of a person in the car before starting the earthquake restoration diagnosis operation.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is a system configuration diagram showing an elevator control apparatus according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a car that moves up and down in an elevator hoistway, 2 denotes an in-car camera that is installed in the car 1 and images the inside of the car 1, and the in-car camera 2 specifically captures a person in the car 1. The arrangement and orientation are set so that they can be performed. A person presence / absence detection apparatus 3 is connected to the in-car camera 2 through a communication line and detects the presence / absence of a person in the car 1 based on a camera image captured by the in-car camera 2. Includes an image processing means 4 for collecting and processing a camera image taken by the in-car camera 2, and analyzing the image processing result of the image processing means 4, and there is a person in the car 1 (there is a person in the car) ) Or determination means 5 for determining whether there is no person in the car 1 (no person in the car).

  Reference numeral 6 denotes a communication device connected to the determination means 5 of the person presence / absence detection device 3 via a communication line, 7 denotes an external information center (management room) connected to the communication device 6 via a telephone line, and 8 denotes a communication device 6. An elevator control panel 9 connected by a communication line is an earthquake detector provided in a building or the like in which an elevator apparatus is installed, and detects an earthquake. The earthquake detector 9 outputs earthquake occurrence information to the person presence / absence detection device 3 and the elevator control panel 8 when an earthquake shake is sensed to notify the occurrence of the earthquake. The elevator control panel 8 is connected to the communication device 6 via a communication line, and the elevator operation mode is changed to normal operation or the car 1 is moved to the nearest floor after the car 1 is stopped in an emergency in the hoistway. Operation mode switching means 10 for switching to rescue operation for rescue of passengers in the car 1, earthquake restoration diagnosis operation for moving the car 1 at low speed across the upper and lower terminal floors while carrying out a predetermined diagnosis after the occurrence of an earthquake, In various operation modes such as rescue operation and earthquake restoration diagnosis operation, an operation control means 11 for controlling various operations of the car 1 such as movement of the car 1 and door opening / closing operation is provided.

  Next, the operation of the elevator control device having the above configuration when an earthquake occurs will be described. FIG. 2 is a flowchart showing the operation of the elevator control apparatus according to Embodiment 1 of the present invention. In FIG. 2, when an earthquake occurs during normal operation of the elevator, the earthquake shake is detected by the earthquake detector 9, and earthquake occurrence information is output from the earthquake detector 9 to the person presence / absence detection device 3 and the elevator control panel 8. The That is, the earthquake detector 9 operates (step S101), and it is notified that an earthquake has occurred.

  In the elevator control panel 8 to which the earthquake occurrence information is input from the earthquake detector 9, first, the car 1 is urgently stopped in the hoistway for the safety of passengers. In order to prevent passengers from being trapped in the car 1 and falling into a canned state, the operation mode switching means 10 switches the operation mode from the normal operation to the rescue operation, and the operation control means 11 starts the rescue operation. . Specifically, first, in order to travel the car 1 to the nearest floor, a travel command is issued to the operation control means 11 (step S102). When the car 1 stops at the nearest floor under the control of the operation control means 11 based on the travel command, the door opening operation is started so that the passenger can get out of the car 1 (step S103), and then the door open state. Is continued for a predetermined time. Then, after a predetermined time has elapsed since the door was opened, that is, after a sufficient time has passed for the passengers in the car 1 to leave the car 1, the passenger enters the car 1 in order to shift to the earthquake restoration diagnosis operation. In order to prevent this, a door closing operation is performed (step S104).

  On the other hand, in the person presence / absence detection device 3 to which the earthquake occurrence information is input from the earthquake detector 9, the presence / absence of a person in the car 1 is determined based on the camera image captured by the car camera 2 after the door closing is completed. It is detected (step 105). Specifically, the camera image collected from the in-car camera 2 is image-processed by the image processing unit 4, and based on the analysis result of this image processing, the determination unit 5 has a person in the car or no person in the car. A determination is made. The person presence / absence detection device 3 compares, for example, camera images continuously photographed for a predetermined time, and determines that there is a person in the car when there is a predetermined movement, or the person in the car 1 Since it may be impossible to move due to injury or the like, it is possible to determine that there is a person in the car even if there is a person who does not move.

  When the person presence / absence detection device 3 detects that there is no person in the car, the door closing state is continued as it is, and the operation proceeds to the earthquake restoration diagnosis operation (step S106). That is, a signal indicating that there is no person in the car is output from the person presence / absence detection device 3 to the elevator control panel 8, and the operation mode switching means 10 to which the signal is input causes the elevator operation mode to be restored from the rescue operation to the earthquake recovery. Switch to diagnostic operation. Then, the earthquake restoration diagnosis operation is performed by the operation control means 11.

  On the other hand, when the presence / absence of a person in the car is detected by the person presence / absence detection device 3, it is not possible to shift to the earthquake recovery diagnosis operation with a passenger in the car 1, and therefore the operation does not shift to the earthquake recovery diagnosis operation. (Step S107), the external information center 7 is notified (Step S108). That is, a signal indicating that there is a person in the car is output from the person presence / absence detection device 3 to the elevator control panel 8, and the operation mode switching means 10 to which the signal is input causes the elevator operation mode to remain in the rescue operation. Maintained. When a signal indicating that there is a person in the car is input to the operation mode switching means 10, the operation control means 11 performs the door opening operation again, for example, to promptly detect passengers in the car 1. You may comprise as follows.

  The signal indicating that there is a person in the car, which is output from the person presence / absence detection device 3, is also input to the external information center 7 via the communication device 6 and the telephone line. In the information center 7 to which the above signal is input, the car 1 cannot move to the earthquake restoration diagnosis operation, that is, the passenger is left in the car 1 even though it has been opened for a predetermined time. It is possible to grasp the situation and take appropriate measures. Even if the camera image captured by the in-car camera 2 is an elevator apparatus that is not transmitted to the information center 7 during normal operation of the elevator, if the presence / absence of a person in the car is detected by the person presence / absence detection apparatus 3, A camera image taken by the car camera 2 may be transmitted to the information center 7 together with a signal indicating that there is a person inside. By having such a configuration, the information center 7 can grasp the situation in the car 1 more accurately.

  According to the first embodiment of the present invention, when an earthquake is detected by the earthquake detector 9 and the presence / absence of a person in the car is detected by the person presence / absence detection device 3, the earthquake control diagnosis operation is performed by the elevator control panel 8. Therefore, it is possible to reliably prevent the earthquake recovery diagnosis operation from being carried out while the passenger is left in the car 1, and to provide a safer elevator device. Since the presence / absence detection of the person in the car by the person presence / absence detection device 3 is performed based on the camera image captured by the car camera 2, the presence / absence of the person in the car 1 before the start of the earthquake restoration diagnosis operation. Can be accurately detected.

  In addition, when the presence / absence of a person in the car is detected by the person presence / absence detection device 3 after the earthquake is detected by the earthquake detector 9, the earthquake recovery diagnosis operation is not performed and the external information center 7 is notified. Therefore, it becomes possible to quickly cope with protection, rescue, etc. of the person left in the car 1. Further, depending on the situation in the car 1, it is possible to shift to the earthquake restoration diagnosis operation through the communication device 6 and the telephone line by the operation from the information center 7.

Embodiment 2. FIG.
FIG. 3 is a system configuration diagram showing an elevator control apparatus according to Embodiment 2 of the present invention. The configuration is the same as that of Embodiment 1 except that the information center 7 is not connected to the communication apparatus 6 via a telephone line. have. In this way, even when not connected to the information center 7, the other configurations and operations are the same as those in the first embodiment, and based on the camera image captured by the car camera 2, the earthquake The presence or absence of a person in the car 1 can be accurately detected before the start of the earthquake restoration diagnosis operation after the occurrence.

It is a system block diagram which shows the elevator control apparatus in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the elevator control apparatus in Embodiment 1 of this invention. It is a system block diagram which shows the elevator control apparatus in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Car camera 3 Person presence detection apparatus 4 Image processing means 5 Judgment means 6 Communication apparatus 7 Information center 8 Elevator control panel 9 Seismic detector 10 Operation mode switching means 11 Operation control means

Claims (5)

An in-car camera that is installed in an elevator car and images the car;
A person presence / absence detecting device for detecting the presence / absence of a person in the car based on a camera image captured by the car camera;
An earthquake detector for detecting earthquakes;
An elevator control panel that performs an earthquake recovery diagnosis operation when no person in the car is detected by the person presence detection device after an earthquake is detected by the earthquake detector;
An elevator control device comprising:   When an earthquake is detected by the earthquake detector and the presence / absence of a person in the car is detected by the person presence / absence detection device, a report is made to an external information center without performing the earthquake restoration diagnosis operation. The elevator control device according to 1. Detecting an earthquake with an earthquake detector;
Detecting the presence / absence of a person in the car by a person presence / absence detection device based on a camera image captured by the car camera after an earthquake is detected by the earthquake detector;
When the absence or presence of a person in the car is detected by the person presence / absence detection device, performing an earthquake recovery diagnosis operation;
An elevator control method comprising: Detecting an earthquake with an earthquake detector;
After an earthquake is detected by the earthquake detector, stopping the elevator car on the nearest floor and opening it;
A step of closing the door after a predetermined time has passed since the door was opened;
Detecting the presence or absence of a person in the car by a person presence / absence detection device based on a camera image captured by the car camera after the door is closed;
When the absence or presence of a person in the car is detected by the person presence / absence detection device, performing an earthquake recovery diagnosis operation;
An elevator control method comprising: 5. The method according to claim 3, further comprising a step of notifying an external information center without performing an earthquake recovery diagnosis operation when the presence / absence of a person in the car is detected by the person presence / absence detection device. The elevator control method described.

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