JPS6339510B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator car position erroneous display device provided to prevent crimes involving elevators.

In recent years, various criminal acts related to elevators in apartment complexes have been increasing. Among these various crimes, for example, when a woman returns home alone at night, the criminal locates her home based on the display on the display device that displays the location of the elevator car, and then commits a crime. This was done with prevention in mind.

That is, an object of the present invention is to provide an elevator car position error display device that causes an elevator car position display device to display a position different from the actual position of the elevator car during movement at night.

To achieve this purpose, the device of the present invention displays a position different from the actual position of the elevator car based on a nighttime signal given at night and a moving signal generated from the start of movement of the elevator car to the end of movement. an erroneous display signal generation circuit that generates a erroneous display signal; and an erroneous display activation circuit that causes a position display device of at least one elevator car arranged on each floor to display a position different from the actual position when the erroneous display signal is received. It is equipped with

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In the figure, 1, 81 to 85 are logical sums (OR)
Circuits, 2, 5, 71-75 are AND circuits, 6, 11 are NOT circuits, 3, 10 are
RS flip-flop, 4 is a falling delay circuit (timer), and 91 to 95 are cage position display devices provided on each floor.

Next, the operation of the illustrated embodiment comprising these elements will be explained according to the signal flow.

First, the operation of causing the cage position display devices 91 to 95 to display incorrect information will be described. The OR circuit 1 indicates that a car call is registered on any floor of the car, and calculates the logical sum of the car call signals S ₀₁ to _{S 05} on the 1st to 5th floors. When the signal is "H", the output signal _S1 in the "H" state is sent to the AND circuit 2. AND circuit 2 outputs its output signal S ₁
In addition, a night signal S _o which is in the "H" state during the night time period is inputted, and the logical product of these signals S ₁ and S _o is taken and the output signal S ₂ is sent to the set terminal of the RS flip-flop 3. is being sent. The RS flip-flop 3 is set by the signal _S2 , and on the other hand, an open signal inputted to the reset terminal assumes the "H" state when the door of the elevator car is opened.
It is reset by _S0 and sends out to the fall delay circuit 4 a pulse signal _S3 corresponding to the moving operation time of the car. The falling delay circuit 4 detects the rising edge of the pulse signal _S3 , detects the falling edge of the pulse signal _S3 , and then waits for a period of time sufficient to prevent a crime even if the erroneous display operation is canceled. For example, a pulse signal (erroneous display signal) _S4 that falls after 20 seconds is sent out. This erroneous display signal _S4 is sent to the display devices 91 to 95 on each floor via the AND circuit 5 and the OR circuits 81 to 85 provided for each floor display device, and the signal _S4 becomes "H". During the state, each display device 91-95 outputs the corresponding OR circuit 81-85 _S81
~ _S85 , the cage's current position is a predetermined position, for example, if it is the one shown in the figure, the display device 91 on the first floor will display "1st floor," and the display device 92 on the second floor will display "3rd floor." ”, third floor display device 9
3, the display device 94 for the fourth floor displays the cage on the "fifth floor," and the display device 95 for the fifth floor displays the cage on the "fourth floor."

Next, the operation for preventing the actual position of the car from being displayed while the erroneous display signal _S4 is in the "H" state will be described. Erroneous display signal S ₄ is AND
After passing through the circuit 5, it is further sent to the NOT circuit 6, where it is inverted and the erroneous display signal S ₄
While is in the "H" state, each AND circuit 71-75 is closed by the output _S6 of the NOT circuit 6. That is, these AND circuits 71 to 75 suitably go to the "H" state while the elevator car is passing, and block the passage of each car position signal S _d1 to S _d5 indicating the actual car position by the output S 6 of the NOT circuit ₆ . do. Therefore, while the erroneous display signal _S4 is in the "H" state, AND
The outputs S ₇₁ - S 75 of the circuits 71 - ₇₅ are in the "L" state, and the display parts of the display devices 91 - 95 to which the outputs of the AND circuits 71 - 75 are directly connected do not light up, and the above-mentioned OR circuit Only the display sections 81 to 85 are connected are lit.

A case where the erroneous cage position display operation is interrupted will be described below. RS flip-flop 10 is
The door closing signal S _c is set by the hall call stop signal S _s which becomes "H" state when stopping at a certain hall call, and takes "H" state when the car door starts closing operation.
It is reset by NOT circuit 11.
It sends out an output signal S ₁₀ to. The NOT circuit 10 converts the inverted signal S ₁₁ of the signal S ₁₀ to the AND circuit 5 described above.
Send to. Therefore, when stopping in response to any hall call, the RS flip-flop 1
The output S ₁₀ of 0 becomes "H" and the output S ₁₁ of the NOT circuit 11 becomes "L", thereby preventing the above-mentioned erroneous display signal S ₄ from passing through the AND circuit 5. On the other hand, at this time,
The gates of AND circuits 71 to 75 are opened by the output of NOT circuit 6, and the corresponding car position signals S _d1 to S _d5 indicating the actual car positions are passed through.
Accordingly, each floor display device 91-95 displays the actual position of the elevator car. Note that when the cage door starts its closing operation, the display becomes erroneously displayed again.

As a result of the above-described operation, when the car stops in response to a hall call at night, the display devices on each floor will display an incorrect display if a car call is registered.

By the way, in the above embodiment, all the display devices on each floor display the wrong information, but in order to mislead the criminal, it is necessary to have a configuration in which only the display device on the first floor displays the wrong information. It's okay if it's hot. In addition, false displays can be avoided by displaying one floor above the actual position when the car is rising, and one floor below the actual position when the car is descending, so that occupants can confirm the actual position of the elevator car. It may be a regular erroneous display like this. Furthermore, the erroneous display is not fixed, and may be such that the display floor number changes continuously.

As described above, according to the present invention, a position different from the actual position of the elevator car is displayed based on a night signal indicating nighttime and a moving signal generated from the start of the elevator car movement operation to the end of the movement operation. An erroneous display signal generation circuit that creates an erroneous display signal, and an erroneous display activation circuit that causes a position display device of at least one elevator car arranged on each floor to display a position different from the actual position when the erroneous display signal is received. This prevents third parties from recognizing the position of cage passengers getting off the cage at night, providing a means of preventing elevator crime.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating an elevator car position erroneous display device according to an embodiment of the present invention. 1, 81-85...OR circuit, 2, 5, 71-7
5...AND circuit, 3,10...flip-flop,
4...Falling delay circuit (timer), 6, 11...NOT
Circuits 91-95...Cage position display device.

Claims (1)

[Claims] 1. An erroneous display signal creation circuit that creates an erroneous display signal for displaying a position different from the actual position of the elevator car based on a night signal given at night and at least an in-service signal generated while the elevator is in service for a car call; , an erroneous display operation circuit that causes the position display device of at least one elevator car arranged on each floor to display a position different from the actual position when the erroneous display signal is received; Device.