JPS6229354B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention detects a mechanical auction of an elevator hall call push button (a state in which it does not return to its original state even if the push button is pressed), and the elevator door is opened on the floor where the auction occurs. The present invention relates to a protection device for preventing a failure from occurring.

FIGS. 1A and 1B are diagrams showing only the portions of a conventional call registration circuit and door opening command circuit related to hall calls. That is, hall call push button 1,
2 (1-1, 1-2 and 2-2, 2-3 in the figure)
) is pressed, the hall call registration relay contacts 3, 4 (3-1, 3-2 and 4 shown) are pressed.
-2, 4-3 shown) are energized, and Hall call clear relay contacts 6, 7 (6-1, 6-3 shown) are energized.
2, 7-2, 7-3) and hall call registration relay contacts 3a, 4a (3a-3 shown)
1, 3a-2, 4a-2, 4a-3), a self-holding circuit is formed and call registration is established. In addition, here, the ascent of the lowest floor, the ascent and descent of the next floor, and the call to ascend the next floor are also recorded. Also, when the call is registered, the door opening command is sent to direction selection relay contact 1.
The rising and falling hall call registration relay contacts 3 and 4 are connected through 8 and 19, respectively, and the door open command relay 9 is energized through the floor selector 8 to obtain the respective position detection. When the contact 9-a is energized, the contact 9-a is closed and connected to the door operating circuit 10 to open the door. On the other hand, the deletion of the call is made effective when the elevator reaches the floor and the door opens. Note that 5 is a diode, 1
Reference numerals 8 and 19 are contacts of the ascending direction selection relay and the descending direction selection relay, respectively.

A problem with the conventional circuit with such a configuration is that if the hall call push buttons 1 and 2 are mechanically auctioned, the hall call registration relays 3 and 4 will not be released, and the door open command relay 9 will also not be released. Since the elevator cannot be released and the door remains open, the elevator remains in a malfunction state with the door open. Furthermore, if the hall call buttons 1 and 2 are left pressed due to mischief or the like, a similar problem will occur and cause trouble to other passengers.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elevator protection device that can eliminate the problems of the prior art.

An embodiment of the present invention will be described below with reference to the drawings. Hall call push buttons 1 (1-1, 1-2...), 2 (2-2...) for ascending and descending in Fig. 2
When 2-z) is pressed, the hall call registration circuit 11 registers the call. This hall call registration circuit 11 is shown as an example in the figure, but
The hall call push buttons 1 and 2 are insulated from the signal power source by a photo coupler, and the signals are registered in a flip-flop circuit F/F. This flip-flop circuit F/F signal is inputted to a small computer, such as a microcomputer device 16, through an input register 12. In this case, the microcomputer device 16 is used because it has a simpler configuration and higher reliability than a system using a combination of relay sequences. Also, the cancellation signal for the hall call is sent to the microcomputer device 1.
6 through the output register 13 to the hall call registration circuit 11 so that the deletion is effected. As other input signals, position detection conditions are given by the floor selector 14 (any signal can be used as long as a position signal can be obtained). A pulse from the clock generator 17 is then applied to provide an element of the time count. Further, as output signals necessary for the present invention, a door opening/closing signal is sent to the door operation circuit 10 through the output register 13, and an output signal is also given to the failure hall call display circuit 15.

The configuration of the present invention described above is such that when the hall call push buttons 1 and 2 cause a mechanical auction, or when the hall call push buttons 1 and 2 are continuously pressed due to mischief, etc.
This circuit is designed to eliminate the problem of elevators getting stuck on the floor that answered a hall call. This will be explained below. First, in FIG. 2, signals from hall call push buttons 1 and 2 are registered as calls in a hall call registration circuit 11. If the hall call pushbuttons 1 and 2 cause a mechanical auction, they remain registered in the hall call registration circuit 11. Further, even if an erase signal is applied from the microcomputer device 16, the registration remains.

Therefore, in the present invention, the registered signal is input to the microcomputer device 16, and even if the hall call cancellation output signal is given, the clock generator 17 counts the fact that the hall call registration is not erased for a certain period of time. After a certain amount of time has elapsed, the microcomputer device 16 stops reading the call (it is read into the memory in the microcomputer device 16, but if it is read from the memory as a judgment condition, it masks the hall call registration for that floor and does not read it).Information processing It judges that there is no hall call and sends a command to close the door to door operation circuit 1.
0, forcibly closes the door and causes the elevator to respond to another floor. Further, the floor of the masked hall call read is displayed by the faulty hall call display circuit 15, and this display may be performed using a lamp, a light emitting diode, or the like. There are no restrictions on the display method, but there is a method that displays the display corresponding to the faulty hall call (this allows you to know which floor's hall call is up or down), and a method where one display is used to indicate which hall is up or down. A method of indicating that there is a fault in the call;
There is also a method of installing a floor indicator so that it is not possible to determine whether the elevator is ascending or descending, but it is possible to tell which floor there is a faulty hall call.

The above-mentioned operation is shown in the flowchart of FIG. 3, and FIG. 4 shows that the hall call push button in FIG. After detecting that
After masking and cutting out the hall call on the floor, if a call comes from another floor, for example the 4th floor, remove the masking, treat it as a general call, have the elevator respond to the 4th floor, and then cut out the hall call again. Call (Hall call mask floor e.g. 5
If this number exceeds a certain value, it is determined that there is a complete failure, the hall call is permanently masked, the hall call is cut out from the control system, and the door operation circuit 10 in Figure 2 is activated to close the door. Give a command to forcibly close the door and prepare for the next hall call, etc. This configuration increases the reliability of failure determination.

In the above embodiment, when a failure hall call occurs, it is displayed, but the system may use a display, a bell, a buzzer, etc. to warn, or a system that only issues an alarm. In addition, in the above embodiment, only the case of an elevator platform was explained, but
It also applies to several group control elevators.

With conventional elevator control systems, if a failure occurs in which the hall call is registered and cannot be deleted (generally, such as the above-mentioned auction of the hall push button), the door is opened on that floor and the elevator becomes in a malfunction state. There is no such thing. The present invention removes unerased hall calls from the control system and prevents them from responding, thereby improving elevator service without bothering other passengers.At the same time, it displays and warns of faulty hall calls, making it extremely difficult to maintain the elevator. This method is effective for shortening the time required to repair a cut-out hall call.

[Brief explanation of the drawing]

Figures 1a and b are conventional call registration circuit diagrams and door opening command circuit diagrams, Figure 2 is a circuit diagram showing an embodiment of the elevator protection device according to the present invention, and Figures 3 and 4 are the circuit diagrams according to the present invention. This is a flowchart for explaining the operation. 1...Hall call push button (for ascending), 2...Hall call push button (for descending), 11...Hall call registration circuit, 12...Input register, 13...Output register, 14...Position detection condition (e.g. floor selector), 15... Failure hall call display circuit, 16
...Microcomputer device, 17...Clock generator.

Claims (1)

[Claims] 1 By operating the hall call button, the hall call is registered in the hall call registration circuit, the car is moved to the floor where the hall call was registered, and after this, the door operation circuit is activated and the door is opened, and then the hall call is deleted. In an elevator in which the above-mentioned hall call registration is cleared by a clearing signal from a signal generating means and the hall call registration is made to respond to the next call, the hall call registration is not cleared even after a certain period of time has elapsed since the above-mentioned clearing signal was generated. a detection means for detecting the state; a means for temporarily masking the hall call registration of the floor to which the car is responding; a counting means for counting the number of hall calls on the same floor as the hall call received; and a permanent means for permanently masking the hall call on the floor to which the car is responding when the count value counted by the counting means is equal to or greater than a certain value. A protection device for an elevator consisting of masking means.