JPS6129305B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for broadcasting to an elevator hall.

In an assignment-based group control elevator, when a hall call is registered, the car most suitable for responding to the hall call is assigned to the hall call. At the same time, there is a system that broadcasts this message to the landing area on the floor where the above-mentioned landing call is registered and guides the passengers to the waiting area. When it is determined that the car will arrive at that floor, a further announcement is made to notify the arrival of the car.

However, depending on call assignment and car arrival conditions, two or more types of broadcasts may overlap. For example, when an arrival broadcast is being made in which a car arrives for an up call on the 5th floor, and this car is assigned to a down call on the 5th floor, that assignment broadcast will also be made. When something like this happens, passengers waiting at the landing will hear two broadcasts.
There is a risk of confusion.

This invention is intended to improve the above-mentioned problems, and an object of the present invention is to provide an elevator hall broadcasting device which prevents confusion among waiting passengers in the hall when two or more types of broadcasts overlap.

An embodiment in which the present invention is applied to a fifth floor landing will be described below with reference to FIGS. 1 to 3.

In the figure, 1 is an up call assignment signal that becomes "H" when a car is assigned to an up call at the landing on the 5th floor, and 2
3 is the down call assignment signal that becomes "H" when assigned to the 5th floor down call, and 3 is the 5th floor down call assignment signal.
When arriving at the 5th floor due to a car call on the floor or an assigned 5th floor landing up call, the up call arrival signal becomes "H", 4 is also a 5th floor car call or an assigned 5th floor landing down call A down call arrival signal that becomes “H” when the call arrives at the 5th floor;
5 is a well-known expected arrival time calculation device (not shown)
, 6 is the expected arrival time signal of the up call corresponding to the time it takes for the car to arrive in response to the up call on the 5th floor, 6 is the expected down call arrival time signal for the down call on the 5th floor, and 7 is the fixed time , for example, constant time signals corresponding to 4 seconds, 8 and 9 respectively output "H" when input at point A and input at point B,
Comparator whose output is "L" at other times, 1
0, 11 are outputs 1 with pulses each 5 seconds wide
A monostable element that generates 0a and 11a, 12 is
NOR gates, 13a to 13d are scanning signals each having a pulse that becomes "H" at slightly different times as shown in Figure 2, 14 to 19 are AND gates, and especially AND gates 14 and 15 are assigned It functions as a blocking means to block broadcasting. 20-23 are NOT gates, 24-27 are R
-S flip-flop (hereinafter referred to as memory), 2
Reference numerals 8 and 29 are monostable elements that emit pulses 28a and 29a with a width of 3 seconds. When the pulse 28a becomes "H", a broadcasting device (not shown) is activated and a message "Upcoming soon" is issued from a speaker (not shown) on the 5th floor landing. When the pulse 29a becomes "H", the assigned broadcast says "The down-bound car will arrive soon". 30 and 31 are monostable elements that emit pulses 30a and 31a with a width of 2 seconds, and when the pulse 30a becomes "H", the arrival broadcast is made from the above speaker saying "The upbound car is coming", and the pulse 31a becomes "H". When this happens, the arrival announcement will be made saying, ``The downbound basket is coming.'' 32 is a NOR gate.

Next, the operation of this embodiment will be explained.

When the car is assigned to the down call on the 5th floor, the down call assignment signal 2 becomes "H". At this time, if the expected arrival time signal 6 of the down-call to the 5th floor of the car is 5 seconds, the output of the comparator 9 is "L" because the input of point A>the input of point B, and the monostable The output 11a of the element 11 is also "L". Furthermore, since the car is not assigned to the up-call on the 5th floor, the expected up-call arrival time signal 5 shows a large value, so similarly, the output of the comparator 8 is "L" and the monostable element 10 The output 10a of is also "L". Therefore, the output of the NOR gate 12 is "H". Now, the output of the AND gate 15 becomes "H". On the other hand, since all inputs to the NOR gate 32 are "L", the output is "H". Here, when the scanning signal 13b becomes "H", the output of the AND gate 17 becomes "H", the memory 25 is set, the monostable element 29 emits a pulse 29a, and the allocation broadcast is performed for 3 seconds. The output of the NOR gate 32 becomes "L" due to the pulse 29a, and the AND gates 16 to 19 are closed for 3 seconds, so that uplink calls, downlink calls, assignments, and arrivals are not broadcast overlapping each other.

When the car approaches the 5th floor and decides to stop, the down call arrival signal 4 becomes "H". Here, when the scanning signal 13d becomes "H", the output of the AND gate 19 becomes "H", and the memory 27 is set.
The monostable element 31 emits a pulse 31a and an arrival broadcast is made for 2 seconds. During this time, AND gate 16-1
9 is closed as described above. The down call for the 5th floor will be canceled when the car arrives, so
As the assignment signal 2 and arrival signal 4 become “L”,
The outputs of NOT gates 21 and 23 become "H",
Memories 25 and 27 are reset and returned to their initial states. The above is normal operation.

Next, the car is assigned to the down call on the 5th floor,
If the expected arrival time becomes 4 seconds at time t ₁ in Figure 3,
Since the comparator 9 has the input of point A = input of point B,
The output becomes "H", and the output 11 of the monostable element 11
a becomes “H” and the output of NOR gate 12 becomes 5.
It becomes "L" for seconds. If this car is assigned to an up call on the 5th floor at time _t2 , the up call assignment signal 1 becomes "H". But as mentioned above
Since the output of NOR gate 12 is "L",
The output of the AND gate 14 becomes "L", the monostable element 28 does not emit a pulse 28a, and no assignment broadcasting is performed. When the car decides to stop on the 5th floor at time _t3 , the down call arrival signal 4 becomes "H", and as mentioned above, the pulse 31a of the monostable element 31 becomes "H" for 2 seconds, and the arrival announcement for the down call is made. It will be done. When the pulse 31a becomes "L" at time _t4 ,
The output of the NOR gate 32 becomes "H". At this time, the uplink assignment signal 1 is still at "H" and the output of the NOR gate 12 is "H", so the output of the AND gate 14 is "H" and the scanning signal 13a is "H". ” when it becomes AND
The output of the gate 16 becomes "H", the memory 24 is set, and the output 28a of the monostable element 28 becomes "H". As a result, allocation broadcasting for uplink calls is performed. In this way, when an assigned broadcast and an arriving broadcast overlap, priority is given to the arriving broadcast, and the assigned broadcast is performed after the arriving broadcast ends.

Note that it is also possible to implement as follows.

(a) In the embodiment, it was decided whether or not to broadcast the allocated broadcast in consideration of the expected arrival time, but the broadcast is given priority to the one that arrives earlier.

(b) When broadcasts overlap, one broadcast will be broadcast and once that broadcast ends, the other will no longer be broadcast.

(c) When broadcasts overlap, lower priority broadcasts are interrupted and higher priority broadcasts are performed.

(d) Broadcasting shall be carried out by determining the priority order of broadcasting for each floor and each car. In this way, only one set of broadcasting equipment is needed in a building.

(e) Do not distinguish assigned broadcasts and arriving broadcasts into uplink calls and downlink calls.

(f) In addition to broadcasting assignments and arrivals, it also broadcasts assignment changes, malfunctions, etc.

As explained above, in this invention, when the car assignment broadcast and the arrival broadcast overlap, one of them is broadcast, thereby preventing confusion among passengers waiting at the landing. can.

[Brief explanation of the drawing]

FIG. 1 is a logic circuit diagram showing an embodiment of an elevator hall broadcasting system according to the present invention, and FIG.
FIG. 3 is a waveform diagram of the scanning signal shown in FIG. 1...Fifth floor landing up call assignment signal, 2...Same left down call assignment signal, 3...Same left up call arrival signal, 4...Same left down call arrival signal, 5...Same left up call expected arrival time signal, 6... Estimated arrival time signal for the same left downbound call, 7... Fixed time signal, 8, 9...
... Comparator, 10, 11 ... Monostable element, 12 ...
NOR gate, 13a-13d...scanning signal, 1
4-19...AND gate, 24-27...R-
S flip-flop, 28-31... monostable element, 32... NOR gate. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. When a car is assigned to a landing call, an assignment broadcast is made to that landing, and when the car arrives at the landing, an arrival broadcast is made a predetermined time before the arrival, and when the car is assigned to the landing, the call is made to the floor where the car next stops. An expected arrival time calculation device that calculates the expected time until arrival, and compares the calculation result of this expected arrival time calculation device with a constant value that is greater than or equal to the value obtained by adding the time required for the allocated broadcast to the predetermined time. a comparator that outputs an output when the above expected time is smaller;
An elevator hall broadcasting device characterized by comprising a blocking means for blocking the assigned broadcasting using the output of the comparator.