JPH06171870A - Door opening/closing control device for elevator - Google Patents

Abstract

PURPOSE:To improve traveling efficiency of an elevator by shortening a door opening period, when no hall call on the floor and completion of getting on/off of passengers are detected, at stopping the elevator by a car call of longer door opening period than usual such as a wheelchair call. CONSTITUTION:This door opening/closing control device is provided with a call register detecting means 30 to detect whether car calls or hall calls at every floor are registered or not, and the sort of call of the floor succeedingly served by the elevator, and when it is judged to be a wheelchair call, an opening period is set as a longer period than usual by a door opening period setting means 40, for example 15 seconds. The elevater answers the wheelchair call, the door opening period is measured by a door control means 90 at opening the door, getting off of passengers is detected by a getting on/off detecting means 60, and when no hall call and no passenger in the car are judged, the door opening period of 15 seconds already set is shortened, for example to 1.5 seconds, and the door opening time is measured again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator automatic door opening / closing control device.

[0002]

2. Description of the Related Art Conventionally, an elevator door opening / closing control device opens a door until a predetermined fixed door opening time is expired in accordance with a call type such as a car call, a hall call, a VIP call, and a wheelchair call. It outputs a command and opens the door. After that, when the opening time elapses, the door opening command is canceled and the door is automatically opened and closed. This method causes unnecessary door opening time when there are no passengers in the car or in the hall after the stop, which causes a problem that reduces elevator operation efficiency and service performance. Suggested improvements. Japanese Examined Patent Publication No. 61-5994 discloses a method of determining a boarding / alighting state based on a change in the weight of a car, setting a door opening time limit, and resetting the door opening time limit when the photoelectric device detects the end of the boarding / alighting. Has been done. Further, JP-A-62-230573 discloses a method for shortening the door opening time when there is no hall call on the floor where the elevator is stopped and the load detection device detects that there is no passenger in the car. There is. In addition, Japanese Patent Application Laid-Open No. 2-152894 discloses a method for detecting the passenger getting on and off by a car weight detecting device and closing the door when it is detected that the passenger does not get on and off for a certain period of time. Further, as disclosed in Japanese Patent Laid-Open No. 3-267288, there has been a method of controlling the door opening time by discriminating passengers getting on and off from the change situation of the load in the car.

[0003]

These conventional techniques are
In each case, the presence / absence of passengers in the car is detected using a load detection device.However, the load detection device for a car that is generally manufactured has the drawback that it cannot detect that no passenger is in the car. It was In order to solve this, there is also a method of accurately detecting that there are no passengers using a mat switch or a load cell, but since it has a special structure, the size of the car is large and there is a drawback that it becomes expensive, It has not been put to practical use in general.

Further, when a wheelchair gets off, passengers who go to other floors get off in the hall for the purpose of assisting the getting off, or in order not to obstruct if there is a general passenger at the entrance side. There is a need. At that time, if the load detecting device detects that there are no passengers in the car and closes the door, there is a problem that passengers who go to other floors are left behind in the hall.

An object of the present invention is to judge that there are no passengers in the car and in the hall based on the registration records of the car call and the hall call, and particularly caused by a call type such as a wheelchair call or a VIP call which has a longer door opening time than usual. It is an object of the present invention to provide a door opening / closing control device that prevents deterioration of elevator operation efficiency and service performance due to useless door opening time.

[0006]

According to the present invention, there is no record of car calls other than stopped car calls and hall calls on the stop floor, and there are photoelectric devices and ultrasonic door sensors installed in the car and near the doorway. The ITV image device and other passenger detection methods that detect passenger movement determine that there are no passengers in the car and in the hall, and shorten the door opening time. Moreover, it is determined that the in-car load is equal to or less than a predetermined value by an inexpensive in-car load detection device that is generally provided.

[0007]

[Function] When the elevator is stopped by a car call with a door opening time limit longer than usual, such as a wheelchair hall call, when there is no hall call on the floor and there is no other car call in the same direction, there is no call in the car or near the doorway. When the installed photoelectric device detects the end of passengers getting on and off, it shortens the initially set door opening time longer than usual, eliminating unnecessary door opening time, and lowering elevator operation efficiency and service performance. prevent.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS.

FIG. 1 shows an example of the configuration of the present invention. Reference numeral 10 is a call input means for passengers to input a hall call and a car call. For example, a hall call and a car call are both general calls and wheelchair calls. There are two kinds of call types, and input is made by each dedicated input device. Reference numeral 20 is a call registration means for judging and registering the type of the call input from the call input means 10. Reference numeral 30 is a car call for each floor and whether or not a hall call is registered, and whether the elevator is to serve the next floor. It is a call registration detecting means for detecting the type of call.
Reference numeral 40 denotes a door opening time limit setting means, which sets the door opening time limit according to the call type detected by the call registration detecting means 30.
For example, a general car call is set to 2 seconds and a wheelchair car call is set to 15 seconds. The photoelectric device 50 is installed near the doorway of the car, and is installed so that passengers block the light when getting on and off. Reference numeral 60 denotes a boarding / alighting detection means for detecting passengers getting on / off by blocking the photoelectric device 50. Reference numeral 70 denotes a passenger in the car due to signals from the call registration means 30, the boarding / alighting detection means 60, and the load detection means 80. It is an in-car unattended determination means for determining the fact. Reference numeral 80 denotes a load detection device that detects the load inside the car, and the change in the detected load can be used by the boarding / alighting detection means 60 as auxiliary data. In addition, by using a switch under the floor for detecting that the detected load is a predetermined value, for example, 20% or less of the maximum load, it is used as an auxiliary signal by the in-car unattended determination means 70. You can also Below, the example in case the load detection apparatus 80 is not used is shown. Reference numeral 90 denotes a door opening / closing control unit that controls opening / closing of the door based on the door opening time limit set by the door opening time limit setting unit 40.
It is composed of a door opening time control unit 90a for measuring a door opening time and a door opening / closing command unit 90b for outputting a door opening / closing command.

Door opening time limit setting means 40 according to the present invention,
An embodiment of processing in the unmanned car deciding means 70 and the door opening time control unit 90a is shown in the flowchart of the door opening / closing control of FIG.

In step S21, it is determined that the floor is stopped by only a car call, that is, there is no hall call on the floor. In step S22, it is determined from the output signal of the call registration detection means 30 that the type of the car call is a wheelchair call. If the car call is a wheelchair car call, in step S23 the door opening time is for a wheelchair car call, for example, 15 seconds. Set to. If it is not stopped only by the car call in step S21, it is determined in step S40 whether the call to the wheelchair hall is answered, and 15 seconds is set in step S42. If it is determined in steps S22 and S40 that the call is not a wheelchair call, the door opening time limit is set to, for example, 2 seconds for a general car call and 3.5 for a general hall call in step S24.
Set to seconds. After the door opening time limit for calling the wheelchair is set in step S23, it is determined in step S25 from the output signal of the call registration detecting means 30 that the car call is not registered in the same direction as the traveling direction. Next, in response to the call for the wheelchair car, the door is opened by the door opening command from the door opening / closing command section 90b, and when the door is completely opened, the measurement of the door opening time is started in step S31. Once it is determined in step S26 that the door has been opened, and in step S2
In step 7, the photoelectric device 50 detects that the passenger is temporarily shielded from light and starts to get off the vehicle, and then, when the photoelectric device 50 passes light, it is determined that the passenger's getting off is completed. Since it is possible to determine that there are no passengers in the car by the above three determinations of steps S25, S26, and S27, the door opening time limit of 15 seconds already set in step S28 is set to, for example, 1.5 seconds. Shorten and re-measure the door opening time. Then, in step S29, the photoelectric device 5 is again used.
If 0 is shielded, it is considered that there is a passenger passing by, and the measurement time is reset in step S30.
Measure again. In step S31, when the measured time for door opening has reached the set door opening time limit, the door opening command is canceled in step S32, and door closing is started.

Even when the normal door opening time limit is set in step S24 and when it is detected that the car call is registered in another floor in step S25, the door opening time limit is controlled in steps S31 and S32. .

The above operation will be supplementarily described with reference to the time chart shown in FIG.

(A) is an example when only getting off. The line segment 31 indicates the first door opening time period of 15 seconds, and when the boarding / alighting detection means 60 detects the end of the boarding / alighting at t1, the door opening time period is 1.5, which is the door opening time period shown by the line segment 32.
The time is shortened to seconds, and at t2, the door opening time expires the door opening time limit and the door closing is started. Line segments 33 and 34 show the passage of the door opening time, and the portion shown by the broken line of the line segment 33 shows the passage of the door opening time when the door opening time period is not shortened. According to the present invention, by shortening the door opening time, it is possible to save the unnecessary door opening time of time T35.

(B) shows an example in which the end of getting off is detected, the door opening time period is shortened, and the boarding / alighting is detected again. The procedure is the same as that of (a) up to t1, but when a passenger shields the photoelectric device 50 and detects the entry / exit again by the entry / exit detection means 60 at a time t3 earlier than t2 when the shortened door opening time period is completed, at t4. Until the end of boarding / alighting is detected, the door opening time control unit 90a stops and resets the door opening time. At t4, after the completion of boarding / alighting is detected, the door opening time starts to be measured again. At t5, the door opening time is restarted. When the time expires, the door will close. Also in this case time T
The useless door opening time indicated by 36 can be omitted.

According to the present embodiment, the fact that there are no passengers is determined by the presence or absence of a call and the detection of the end of the boarding / alighting by the photoelectric device. Therefore, by installing a special device such as a highly accurate load detecting device, It is possible to suppress an increase in size and an increase in cost.

[0017]

According to the present invention, when an elevator stops due to a car call, such as a wheelchair call, for which the door opening time period is set longer than usual, and there are no passengers, the initially set door opening time period is longer than usual. Can be shortened, unnecessary door opening time can be eliminated, and deterioration of elevator operation efficiency and service performance can be prevented.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a door opening time limit control flowchart showing processing of the present invention.

FIG. 3 is a time chart explaining the operation of the present invention.

Claims (4)

[Claims] 1. A call registration means that has a plurality of types of hall calls or car calls, discriminates and registers the type of the call when the hall call or the car call occurs, and a floor of the floor where the elevator is stopped. Hall call, call registration detection means for detecting whether there is a car call other than the stopped floor, door opening time setting means for setting the door opening time according to the type of the call, and car inside or car entrance Corresponding to the first type of car call, the boarding / alighting detection means for detecting passengers getting on and off by a passenger detection device installed in the vicinity, and the door opening time limit setting means for the car call type among the call types Means for setting a first door opening time period, means for setting a second door opening time period larger than the first door opening time period, corresponding to a second type of car call, and When the car is stopped by two kinds of car calls, and the call registration detecting means detects that there is no hall call registration history at the stop floor and that there is no car call in the same direction except the stop floor, the boarding / alighting detection means Is equipped with a door opening time shortening means for shortening the second door opening time after detecting the passenger getting off. 2. The door opening time reduction means according to claim 1, wherein the door opening time shortening means opens the door when a predetermined time shorter than the second door opening time has elapsed after the passenger getting on / off detecting means finished detecting the passenger getting off the vehicle. Elevator door opening and closing control device that saves time. 3. The elevator door opening / closing control device according to claim 2, wherein when the boarding / alighting detection means detects the passenger getting on / off again, the door opening time is re-counted. 4. A hall register or a car call, each of which has a plurality of types, and when the hall call or the car call occurs, the call type is discriminated and registered, and the floor of the floor where the elevator is stopped. Hall call, call registration detection means for detecting whether there is a car call other than the stopped floor, door opening time setting means for setting the door opening time according to the type of the call, and car inside or car entrance Corresponding to the first type of car call, the boarding / alighting detection means for detecting passengers getting on and off by a passenger detection device installed in the vicinity, and the door opening time limit setting means for the car call type among the call types Means for setting a first door opening time period, means for setting a second door opening time period larger than the first door opening time period, corresponding to a second type of car call, and The load detection device in the car detects that the car is stopped by two types of car calls, the call registration detection means detects that there is no hall call registration history on the stop floor, and that there is no car call in the same direction except the stop floor. Is detected to be less than or equal to a predetermined load, the elevator door is provided with door opening time shortening means for shortening the second door opening time after the passenger getting on and off is detected by the boarding / alighting detection means. Switching control device.