JPS6054222B2 - Elevator car call release device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for collectively canceling elevator car calls.

Conventionally, when a careless passenger gets off a car, he or she may register a large number of car calls.

If this happens, the car starts operating in response to a registered car call and repeats unnecessary starting and stopping, which reduces elevator efficiency and wastes valuable power. Therefore, as a countermeasure, when it is detected that a predetermined number of car calls (for example, 2) or more have been registered while the car is stopped and there are no passengers in the car, this will be treated as a prank call and all car calls will be canceled. I try to do that. At the same time, the car door is opened to allow time for new passengers to register their car names correctly. However, in this case, when the passenger boards the car, it is assumed that one car call at the rear of the car in the driving direction (hereinafter referred to as the rear car call) has already been registered, and when the passenger boards the car, the car call at the front of the car in the driving direction (hereinafter referred to as the rear car call) has already been registered. Assume that one (hereinafter referred to as forward car call) is registered.

This means that the number of car calls is two, and the load inside the car is no load (due to an error in the car load detection device; if there is only one passenger, it will be detected as no load), so the car call number is 2. will be canceled and passengers will have to register their car calls again. In this case, the rear car call does not prevent newly boarded passengers from heading to their destination floor. Further, since the rear car call is canceled when the car becomes directionless while traveling or when the direction is reversed, there is no need to cancel the rear car call at this point. Additionally, if there is no car call in front and there are no passengers, if two or more rear car calls are registered, it will be considered a mischievous call and will be canceled, resulting in unnecessary door openings and reducing the efficiency of elevator operation. This will result in a lower level of performance. This invention aims to improve the above-mentioned problems.
To provide an elevator car call release device which eliminates erroneous detection of mischievous calls associated with registration of rear car calls and prevents deterioration of operating efficiency due to unnecessary door openings.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

In Figure 1, 0p, 1p to 5p, and Xp are floor basic pulses that are repeatedly output in the order shown in the figure, and pulses 1p to
5p corresponds to the 1st to 5th floors, respectively.

In Figures 2 and 3, 1A to 5A and 1B to 5B are AND
Gates, 11p to 15p are car call pulse signals that are pulsed car calls from the 1st to 5th floors with floor basic pulses 1p to 5p (for example, when there is a car call on the 1st floor, the floor basic pulse 1p has arrived) At this time, the car call pulse signal 11p becomes RlJ.

), 16, and 17 are counters that count the inputs and when the number of inputs reaches 2, the output is RlJ, and R indicates a reset terminal.
16a is the output of the counter 16, and when it becomes RlJ, the door open signal gives a command to open the door; 118 is the output when the input is RL, the output is ROJ, and when the input changes from RIJ to RO for a certain period of time, the door is opened. Floor basic pulse 0p, 1p ~ 5p, XP
The timer 19 and 20 whose output becomes RlJ after the time required for each pulse to occur and complete one cycle) are 0R! -t,
21 is an AND gate, and 21a is its output, which is a car call release signal that releases all car calls when r1 is reached; 22
If there is no load inside the car after the door closes, the car load detection signal will be ROJ, and if there is a load, it will be RlJ. However, taking into account the detection error, if there is only one passenger, it will be ROJ.

23 is a car position pulse signal pulsed with floor basic pulses 1p to 5p, 24 is a memory, 24a is its set output, 24b is also a reset output, 25 is a NOT gate, 26 to 31 are AND gates, 32 is 0R gate 32a
is the output of the 0R gate 32, which is the car forward scanning signal; 33 is the 0R gate; 33a is the output of the 0R gate 33, which is the car backward scanning signal; 34 is the up direction signal that becomes RlJ when the car is in uphill operation; 35 is the same. This is a downstream signal.

Next, the operation of this embodiment will be explained.

It is assumed that a car call on the second floor has already been registered for a car that is stopped on the third floor during up-bound operation, and that the car is not loaded. Assume that a car call has been registered.

When the floor basic pulse 0p is RlJ, the memory 24 is set and the set output 24a is Rl. It becomes J.

On the other hand, since the car is on the third floor, the car position pulse signal 23 is at RO when the floor basic pulse signal 0p is reached. Therefore, the output of the NOT gate 25 becomes r1, and the AND
The output of gate 26 becomes RlJ. Since the upstream signal 34 is RlJ, the output of the AND gate 30 is RlJ, and the output of the 0R gate 33, that is, the car rear scanning signal 33a, is r1. Now, AND gate 1B
~5B is opened. Since the car call on the second floor is registered, when the car call pulse signal 12p becomes rlo,
The output of AND gate 2B becomes RlJ, and counter 17
counts that there is one input.

At this time, the floor basic pulse signal 0p is ROj, and the no-load detection signal 22 of the car is also ROJ, so the output of the 0R gate 19 is also ROJ, and the counters 16 and 17 are not reset. Next, since the car is on the third floor, when the floor basic pulse 3p becomes RlJ, the car position pulse signal 23
becomes RlJ, the memory 24 is reset, and the set output 24a becomes ROJ, so the car rear scanning signal 33a becomes RO. At the same time, the reset output 24b becomes RlJ, so when the car position pulse signal 23 becomes ROJ, the output of the NOT gate 25 becomes RlJ. With this, AN
The output of the D gate 27 becomes RlJ, and the AND gate 29
The output of the 0R gate 32, that is, the car front 32a becomes RlJ.

As a result, AND gates 1A to 5A are opened. Since the car call on the fourth floor has been registered, when the car call pulse signal 14p becomes RlJ, the output of the AND gate 4A becomes RlJ, and the counter 16 counts that one input has been received.

At the same time, the counter 17 is reset via the timer 18 by the output of the AND gate 4A. That is, rear car calls are not counted, and only front car calls, if any, are counted. Counters 16 and 17 have 2 inputs.
The output of both counters 16 and 17 remains ROJ in this case, since the output will not become RlJ unless the number arrives. Therefore, the car call release signal 21a and the door open signal 16
Both a and a do not become RL, and the car leaves to answer the car call on the fourth floor. In this way, the number of rear car calls and front car calls are counted separately, and if there are front car calls, rear car calls are not considered. Therefore, all car calls are canceled by the addition of the car calls registered by the passenger who boarded the car and the remaining rear car calls, and the door will not be reversed.Also,
In the above case, it is clear that the same applies no matter how many rear car calls are registered. If a passenger who boarded the train on the 3rd floor mischievously registers a car call on the 4th floor and a car call on the 5th floor, the counter 17 will be reset in the same way as described above, and the counter 16 will count the arrival of 2 inputs. A door open signal 16a is issued and the door is opened.

At the same time, the output of the 0R gate 20 becomes RlJ, and when it becomes the basic panores Xp IJ, the AND gate 21
The output of the car call release signal 21a becomes RlJ, and all car calls are released. In this way,
Since a mischievous car call is detected only when two or more front car calls are registered in an unloaded state, misdetection of a mischievous call due to a rear car call being registered is prevented. Next, when the car stops on the third floor during uphill driving, it is assumed that the passengers in the car register the car calls for the second and first floors (rear car calls) and get off the car, leaving the car empty.

As in the case described above, the car call pulse signals 11p, 12
p, the outputs of AND gates 1B and 2B become Rl.p. It becomes J.

Since the car is unloaded, the car load detection signal 22 is R.
Since it is OJ, the counter 17 is not reset, but counts the arrival of three inputs, and its output becomes RlJ. Since car calls are not registered anywhere other than the 1st and 2nd floors, AN
The outputs of D gates 1A to 5A are all ROJ. Therefore, the output of the counter 16 is also ROJ, and the door open signal 16a is not generated. Also, counter 17
is not reset (because the outputs of AND gates 1A to 5A do not become Rl.3). Since the output of the counter 17 is RlJ, the output of the 0R gate 20 is also r1, and when the floor basic pulse Xp is RlJ, the car call release signal 21a is issued. In this way,
When the car is unloaded and there are no front car calls and only two or more rear car calls are registered, all car calls are canceled without opening the door. For this reason, the door is not opened needlessly. In addition, it is possible to prevent direction reversal due to rear car calls while the car is stopped and unnecessary running. Although the embodiment has been described with respect to the case where the car is running uphill, the same explanation can be given to the case where the car is running downhill.

As explained above, in this invention, when the car is unloaded and more than a predetermined number of car calls in the front of the car in the driving direction are registered, all registered car calls are canceled. Erroneous detection of mischievous calls associated with call registration is eliminated, and car calls can be accurately canceled.

Additionally, if there are no front car calls and only rear car calls are registered over a specified number, all registered car calls will be canceled and the car door will be prevented from reopening.
(To prevent a drop in operating efficiency due to unnecessary opening of doors due to rear car calls).

[Brief explanation of the drawing]

FIG. 1 is a floor basic pulse waveform diagram used in an embodiment of the elevator car call release device of the present invention, and FIGS.
The figure is also a logic circuit diagram.

Claims (1)

[Scope of Claims] 1. A car call detection device that distinguishes between registered car calls that are ahead of the car in the driving direction and those that are behind the car, and detects car calls that are ahead of the car in the driving direction; A front car call counting device that counts the output of this car call detection device and operates when the output exceeds a specified number, an in-car load detection device that operates by detecting the presence or absence of a load in the car, and this in-car load detection device A signal from the car and a signal from the counting device are input, a signal indicating that the car is not loaded is input, and a signal indicating that the counting device is activated is input, the car cancels all the car calls. An elevator car call release device comprising a call release device. 2. A car call detection device that separately detects registered car calls that are ahead and behind the car in the driving direction, and counts the output of this car call detection device to detect the car calls in front of the car. A rear car call counting device that operates when the number of rear car calls is counted and the number exceeds a specified number, an in-car load detection device that operates by detecting the presence or absence of a load in the car, and an in-car load detection device. When a signal from the device, a signal from the counting device, and a signal from the counting device are input, a signal indicating that the car is not loaded is input, and a signal indicating that the counting device is activated is input. A car call release device for an elevator, comprising a car call release device for canceling all the car calls, and a door reopening prevention device for preventing the door of the car from reopening when the car call release device is activated.