JPS6327266B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the operation of an elevator to prevent crime inside the car.

When the elevator car door closes, it becomes a closed room, and many crimes are taking advantage of this to assault passengers (particularly women). In order to protect passengers from these crimes, it has been proposed to provide a crime prevention driving command device in the landing or in the car, and to cause the car to perform crime prevention operation when the crime prevention driving command device operates. This security operation includes forcing the car to stop at each floor and opening the door each time, limiting the number of passengers allowed into the car to one person, and preventing the car from starting when two or more people have boarded the car, thereby preventing single-occupant operation. If detected, the passenger will not be allowed to respond to calls on the way to the landing, and the passenger will be taken directly to the desired floor. Furthermore, this crime prevention driving is only carried out at night when crime is concentrated.

However, depending on the environment in which the elevator is installed in a building, security operation may be required not only at night but also during the day. Therefore, if crime prevention driving is carried out day or night as described above,
It is clear that when elevator traffic is heavy throughout the day, operating efficiency is significantly reduced.

This invention improves the above-mentioned problems, and provides an elevator security operation device that prevents a decrease in operating efficiency due to crime prevention operation by performing crime prevention operation only when elevator traffic is light. The purpose is to

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, (+) and (-) are DC power supplies, 1 is a landing button installed at the landing on each floor, 2 is a destination button installed inside the car, 3 is a call totalizer that totals the number of inputs, 4 5 is a predetermined value signal corresponding to a predetermined number of objects, 5 is a comparison between input A and input B, and when input A is input B within a certain period of time, the output becomes "H", and similarly input A <
A call number comparator whose output is “L” when input is B;
6 is a call registration detection relay that is energized when the output of the call number comparator 5 becomes "H"; 6a is its normally closed contact; 7 is a crime prevention driving command button installed at the landing;
8 is a starting command relay contact which closes when a starting command is given to the car, and 9 is a crime prevention operation command relay which, when energized, issues a crime prevention operation command to cause the car to perform the above-mentioned crime prevention operation.

Next, the operation of this embodiment will be explained.

When landing button 1 or destination button 2 is pressed,
The signal becomes "H" and the number is
It is calculated by The number of calls comparator 5 determines whether the number of calls within a certain period of time is greater or less than the predetermined value signal 4.

Now, at night, when the number of elevator users decreases and the number of calls within a certain period of time becomes less than the predetermined value signal 4, the output of the number of calls comparator 5 becomes "L". Therefore, the call registration detection relay 6 is deenergized and the contact 6a is closed. Here, when the crime prevention driving command button 7 is pressed, (+)-7-6a-9-
The security driving command relay 9 is energized by the (-) circuit, and self-maintains by closing the contact 9a. When a start command is issued to the car, the start command relay contact 8 closes, so the number of calls increases while the car is running, and as will be described later, the call registration detection relay 6 is energized and the contact 6a opens. However, the security operation command relay 9 is held until the car stops at the scheduled floor. When the car stops, the contact 8 is opened, and at this time, if the contact 6a is closed, the crime prevention operation command relay 9 is held and the crime prevention operation is continued, and the contact 6a is closed.
If it is open, the crime prevention driving command relay 9 is deenergized and the crime prevention driving is canceled.

Next, in the daytime, when the number of elevator users increases and the number of calls within a certain period of time exceeds a predetermined value signal 4, the output of the number of calls comparator 5 becomes "H".
The call registration detection relay 6 is now energized and the contact 6a is opened. Therefore, even if the crime prevention operation command button 7 is pressed, the crime prevention operation command relay 9 is not energized, and the car does not perform crime prevention operation.

In the embodiment, a case has been described in which the security operation command button 7 is installed in a hall, but it may also be installed inside a car, in an elevator control room, or the like.

Furthermore, although the crime prevention driving command is canceled immediately when the number of calls exceeds a predetermined number within a certain period of time, it is also possible to easily cancel the crime prevention driving command after a predetermined period of time has elapsed.

Furthermore, as a means of detecting elevator traffic conditions, we have developed a system that detects when a predetermined number of calls or more have occurred within a certain period of time. may be detected. Alternatively, past and current traffic conditions may be compared and calculated to predict a time period in which call occurrences are concentrated.

As explained above, in this invention, a command to perform crime prevention operation is issued only when the traffic condition of the elevator is under a predetermined condition, and once the crime prevention operation is started, this command is held until the elevator reaches the scheduled stop floor. , it is possible to suppress the abuse of the crime prevention operation that limits the number of passengers in the car to one person, to prevent a decrease in the operating efficiency of the elevator, and to give a sense of security to the passengers in the car during the crime prevention operation.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing an embodiment of an elevator security operation device according to the present invention, and FIG. 2 is a similar circuit diagram. 1... Boarding button, 2... Destination button, 3...
Call integrator, 4... Predetermined value signal, 5... Call number comparator, 6... Call registration detection relay, 6a... First
circuit (call registration relay contact), 7... crime prevention driving command button, 8... second circuit (starting command relay contact), 9... crime prevention driving command relay.

Claims (1)

[Scope of Claims] 1. Traffic condition detection that operates when the elevator traffic condition meets a predetermined condition in an elevator that enables operation only when there is only one passenger in the car when a crime prevention operation command is issued. a first circuit that prevents the generation of the crime prevention driving command when the traffic condition detection device is in operation; and a first circuit that issues the crime prevention driving command when the traffic condition detection device is not in operation; A crime prevention operation device for an elevator, comprising a second circuit that holds the crime prevention operation command until the car arrives at a floor where the car is scheduled to stop even if the traffic state detection device operates while the car is running. . 2. The elevator security operation device according to claim 1, wherein the predetermined condition is that it is in a preset arbitrary time period. 3. The elevator security operation device according to claim 1, wherein the predetermined condition is that the number of calls is greater than or equal to a predetermined value. 4. The elevator security operation device according to claim 1, wherein the predetermined condition is that the future traffic volume predicted by the calculation result is equal to or greater than a predetermined value by comparing past and present traffic conditions.