JPS6256077B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator hall guidance device for managing a plurality of parallel elevators as a group and for guiding waiting passengers at the hall to the arrival of the elevator.

Group control elevators control the operation of the cars effectively and efficiently, decide which car will serve a hall call, and report that car (service car) to the passengers waiting at the hall (for example, by setting a hall lantern). (lighting up and sounding gongs) to improve service to passengers waiting at the boarding point.

Generally, the above-mentioned method of notifying the service car is that when a hall call occurs, the most suitable car for that call is selected as the service car, and the selected car is displayed at the car entrance of the hall. , guiding passengers waiting at the platform to the vicinity of the service car. This is extremely effective when many elevators are installed in parallel to avoid congestion, reduce rush boarding, and ensure smooth operation. Since you can know in advance if there is a car, you can wait for the car in front of the car landing with peace of mind, which improves the quality of service.

However, when a hall call occurs, where there are still many uncertainties, the most suitable car for that call is immediately selected and determined.
If the optimal car changes due to subsequent changes in traffic demand, the display at the landing must be changed, resulting in a sense of distrust among waiting passengers regarding the information display.

For this reason, a system has recently been proposed in which the guidance display is delayed until the service car is within a predetermined distance from the floor where the hall call occurs, and when the service car is within the predetermined distance, the guidance display is performed with the assumption that the service car will almost certainly arrive first. There is. However, in this system, no guidance is displayed for waiting passengers until the service car is within a predetermined distance from the floor where the hall call occurs after the hall call is registered, so the service for waiting passengers cannot be said to be sufficient.

This invention was made in view of the above points, and provides an elevator landing guidance device that can alleviate the psychology of waiting passengers and accurately predict the first arriving car by displaying the earliest arrival probability for each car at the landing. The purpose is to provide.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. For convenience of explanation, a case will be shown in which three cars are installed in an eight-story building, but it goes without saying that the present invention is applicable regardless of the number of cars installed and the number of floors.

FIG. 1 is a block diagram showing one embodiment of an elevator hall guidance device according to the present invention, and in the figure, 1a to 1c are shown.
2a-2 are well-known response expected time calculation devices for calculating expected response times of cars A to C to hall calls;
c is an expected response time signal outputted from each of the expected response time calculating devices 1a to 1c until a hall call can be answered, and 3 is the shortest time signal and the second shortest time signal among the expected response time signals 2a to 2c. Then, select the second shortest time signal and the third shortest time signal, calculate the expected time difference between them, and use the expected time difference and each of the shorter response time signals to calculate an example as shown in FIG. 5, which will be described later. Based on the probability table, A
~Probability signal 4 that car C arrives first before other cars
First arrival probability calculation device that outputs a to 4c, 5a
~5c is A to which the probability signals 4a~4c are input.
This is the display at the elevator landing of car No. C.

FIG. 2 is a front view of display devices 5a to 5c according to the present invention installed in an elevator hall, and FIG. 3 is a detailed view of the display device, and the same reference numerals as in FIG. show. FIG. 4 is an explanatory diagram for explaining the relationship between the cars of cars A to C and each call. In the figure, C6a is the car call of the 6th floor registered in car A,
C5b, C7b are car calls for the 5th and 7th floors registered in the B car, C2c, C3c, C5c,
C7c is the 2nd floor, 3rd floor, and 5th floor registered in Unit C.
The car call for the 7th floor and the 7th floor, U7a is the hall call for the 7th floor ascending direction.

Now, the operation of the apparatus of this embodiment will be specifically explained for the case where a hall call for the 7th floor up direction is registered as shown in FIG. Assuming that the expected response times for Units A, B, and C to the 7th floor calculated by the well-known expected response time calculation devices 1a to 1c for Units A to C are 16, 19, and 44 seconds, respectively, these expected response times are Expected response time signal 2a in binary code corresponding to
~2c is input to the earliest arrival probability calculation device 3.
This earliest arrival probability calculation device 3 first selects the signal 2a with the shortest expected response time and the signal 2b with the second shortest expected response time among the input expected response time signals 2a to 2c (the expected response time is The shorter one is called the standard expected time), and the difference between those expected times (19
seconds - 16 seconds = 3 seconds). Next, this earliest arrival probability calculation device 3
The fifth data stored in the storage unit (not shown) in
Based on the probability table shown as an example in the figure, from the standard expected time of 16 seconds and the expected time difference of 3 seconds, A
There is a 60% probability that Unit 0 will arrive at the 7th floor before Unit B.
Find the probability (100% - 60% = 40%) that car B will arrive at the 7th floor before car A. Next, this earliest arrival probability calculation device 3 selects the response expected time signal 2b with the second shortest expected response time and the response expected time signal 2c with the third shortest among the inputted expected response time signals 2a to 2c. Then, calculate the expected time difference between them (44 seconds to 19 seconds = 25 seconds), and as above, based on the probability table in Figure 5, determine whether Unit B will be the same based on the standard expected time of 19 seconds and the expected time difference of 25 seconds. 80% probability of arriving at the 7th floor before Unit C and Unit B
Probability of arriving at the 7th floor before Unit No. 1 (100% - 80
%=20%). Next, the earliest arrival probability calculating device 3 calculates the probability that the A, B, and C cars will arrive first as follows.

That is, A:B=60:40... B:C=80:20... From the formula, A:B:C=6:4:1... Find the formula, and use the formula to calculate the following for each of the following units A to C. Find the probability of arriving first.

Unit A...6/(6+4+1)≒55% Unit B...4/(6+4+1)≒36% Unit C...1/(6+4+1)≒9% The earliest arrival probability calculation device 3 calculates the Probability signals 4a to 4c in decimal codes are output, and displays 5a, 5b, and 5c display the probabilities of machines A, B, and C, respectively, as shown in FIG. This probability calculation is output from the expected response time calculation devices 1a to 1c each time the timing pulse 10 generated at predetermined time intervals is input to the expected response time calculation devices 1a to 1c and the earliest arrival probability calculation device 3. This is performed by the earliest arrival probability calculation device 3 based on the predicted response time signals 2a to 2c.
c displays the probability of each car arriving first, which changes from moment to moment.

In the above example, the A and B machines, that is, the shortest and second shortest expected response times, and the B and C machines, that is, the second and third shortest expected response times. Find the first arrival probability of each machine by comparing them, and take the ratio to calculate A to C.
Although the first-arrival probability of each machine is calculated, it is also possible to change the combination of machines to be compared depending on the circumstances of each site. Furthermore, it goes without saying that the contents of the probability table may be changed depending on the circumstances of each site.

Here, we have described the case where the probability of first arrival is displayed on a digital display, but a,
The probability may be displayed in a bar graph or a pie chart as shown in b, or the brightness or lighting area of the direction light for rising or falling (in the figure, only the rising case is shown) as shown in a and b in Fig. 7. The first-come-first-served probability may be displayed by changing .

As explained above, according to the present invention, the notification to the waiting customers in the service car regarding the hall call is performed by displaying the probability of first arrival that changes from time to time, so it is possible to provide highly accurate guidance, and it is possible to flexibly change the allocation. This makes it possible to shorten waiting time and prevent long waiting times.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the elevator landing guide device according to the present invention, FIG. 2 is a front view of the elevator landing, and FIG.
5c is a detailed diagram, FIG. 4 is an explanatory diagram explaining the relationship between cars A to C and each call, FIG. 5 is a diagram showing an example of a probability table, and FIGS. 6 and 7 are according to the present invention. It is a figure showing other indicators. A, B, C...Elevator car, 1a, 1b,
1c...Response expected time calculation device, 2a, 2b, 2
c...Response expected time signal, 3...First arrival probability calculation device, 4a, 4b, 4c...Probability signal, 5a,
5a', 5a'', 5a... Indicator of unit A, 5b,
5b', 5b'', 5b...Indicator of unit B, 5c,
5c', 5c'', 5c... Indicator of Unit C, 50...
...Probability indicator for units A to C.

Claims (1)

[Scope of Claims] 1. In an elevator in which a plurality of elevators are installed in parallel, an optimal elevator among the plurality of elevators is selected and determined in response to a hall call, and the hall call is assigned to the optimal elevator, each of the plurality of elevators an expected response time calculation device for calculating the time for the elevator to respond to the hall call; means for selecting two time signals in a predetermined order from expected response time signals of each elevator output from the expected response time calculation device; means for calculating the first arrival probability of each elevator to the hall call generation floor based on a preset probability table from the shorter time signal of the two time signals and the time difference between the two time signals; a earliest arrival probability calculation device comprising means for calculating the first arrival probability of each elevator to the hall call generation floor from the first arrival probability of the elevator to the hall call generation floor; An elevator hall guidance device characterized by comprising a display device displayed at the elevator hall. 2. The means for selecting the two time signals in the predetermined order selects the first, second, and second time signals from the shortest time signal.
2. The elevator hall guidance device according to claim 1, characterized in that the elevator hall guidance device is means for selecting in the order of 3rd, 3rd, and so on.