JPS623747B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator control device, and more particularly to an elevator control device that detects and judges the number of customers waiting in an elevator hall to distribute items while preventing them from being left behind.

In recent years, with the development of electronic technology, elevator control has become more sophisticated, and the number of customers waiting in an elevator hall is detected and cars are allocated based on this information. First, before explaining conventional elevator control, detection of the number of waiting customers in an elevator hall will be explained. FIG. 1 shows a number of people detection device for detecting the number of people waiting in an elevator hall, in which 1 is a transducer having a transmitter 1a and a receiver 1b, 2 is a number of people detector, and the transmitter A driver 2a that drives the driver 1a to send out energy waves such as ultrasonic waves or electromagnetic waves in a pulsed manner.
, an amplifier 2b that amplifies the received output signal of the reflected wave received by the receiver 1b, and an amplifier 2b that supplies a drive command signal to the driver 2a and
The central processing unit 2e calculates the number of people within the detection range by taking in the output signal of the output signal 2e and processing it. 3 is a waiting customer existing within the detection range.

In the number of people detection device configured in this way,
The central processing unit 2c sends out a drive command signal and supplies it to the driver 2a. When the driver 2a receives the drive command signal, the driver 2a drives the wave transmitter 1a to radiate energy waves in a pulsed manner toward the detection range. In this case, if there is a human within the detection range,
A pulsed energy wave emitted from the transmitter 1a is reflected by the person 3, and the reflected wave is received by the receiver 1b and converted into a corresponding electrical signal. The output signal of this receiver 1b is amplified in an amplifier 2b and then supplied to the central processing unit. The central processing unit 2c calculates the time from when the drive command signal is sent to the driver 2a until the reflected wave is detected and the output of the amplifier 2b is supplied, and the energy wave is reflected by this time. The distance to human 3 is calculated. The central processing unit 2c also receives information about the horizontal direction angle and vertical direction angle θ of the transducer 1 based on a signal from a transducer direction detection section (not shown), and based on this information, the 3 position coordinates P(x,
y) is being calculated. That is, when the propagation speed of the energy wave is v, x and y are as shown in the following equation.

x=vt/2・cosθ・sin y=vt/2・cosθ・cos By performing such processing while scanning the entire detection range while sequentially changing the direction of the transducer 1, the detection range can be It is possible to detect in which coordinate part a person exists, and for example, when there is only one person 3 in the detection range as shown in FIG. 2, the human detection display 3a is displayed as shown in FIG. Video information of only one person is obtained, and the number of people is output as one person.

FIG. 4 is a block diagram showing an example of an elevator control device using the number of people detection device shown in FIG. 5 is a car group consisting of n cars 5a to 5n that operate as a group in the building. , 6 is an in-car passenger number detection device constituted by weighing devices 6a to 6n provided in the cars 5a to 5n, respectively, and 7 is an elevator control device for controlling the movement of the car group 5.

In the apparatus configured as described above, the number of people signal which detects the number of waiting customers in the elevator hall and is output from the number of people detector 2 is supplied to the elevator control device 7 and is subsequently input thereto. On the other hand, the elevator control device 7 receives a ratio signal for distributing the expected number of waiting customers in the elevator hall into up and down depending on the time and other call conditions supplied from the number allocator 4, and Estimation is made by calculating the number of customers waiting in the direction and the number of customers waiting in the down direction, and control is performed so that the operating efficiency of the car group 5 is maximized. In other words, if the number of passengers waiting in the up direction is estimated to be 5, for example, if the number of additional passengers in cars 5a to 5n is less than 5, allocation for calls on this floor will be stopped. However, if 10 people are waiting in the up direction on another floor, the cars with 10 or more passengers who can board the cars 5a to 5n will be transferred to the up direction 5.
The floor is controlled to be assigned preferentially to the floor where people are waiting. In this case, the additional number of passengers will be
This is calculated by the elevator control device 7 from the difference between the number of passengers in the car detection device 6 and the pre-stored car capacity. In this way, by detecting the number of customers waiting in the elevator hall, the operating efficiency of the car group 5 can be increased.

However, in the above configuration, the number of customers waiting in the up or down direction is calculated and estimated based on the number of people detected in the elevator hall and the expected ratio output from the number of people allocator 4. If the prediction is incorrect, the number of customers waiting in the up and down direction will differ from the actual number.

In such a case, even if the elevator control device 7 allocates a car with a certain number of passengers who can board the car than the calculated number of waiting passengers, the actual number of waiting passengers will be larger and backlogs will occur.
In this way, when a car is left behind, when the remaining passenger operates the hall call button again, it is detected that the car is left behind and another car is assigned. Therefore,
In addition to feeling irritated by being left behind, customers who are left behind will continue to feel irritated during the time it takes for another basket to arrive. Furthermore, compared to the case where all waiting customers are assigned a car that can board,
As a result, two cars are allocated, which has the disadvantage that the operating efficiency of the car group is significantly reduced.

Accordingly, an object of the present invention is to provide an elevator control device with high operation efficiency and no unloaded items. Hereinafter, the elevator control method according to the present invention will be explained in detail using the drawings.

5 and 6 are a plan view and a block diagram of an elevator hall showing an embodiment of the elevator control system according to the present invention, and the same parts as in FIG. 4 are denoted by the same symbols. The detailed explanation is omitted. In the figure, 8 is an elevator hall, and this elevator hall 8
is constituted by divided detection ranges 8a to 8n divided corresponding to the respective cars 5a to 5n. Reference numeral 9 denotes a number of people in a divided range detection unit that detects the number of waiting customers existing in the divided detection ranges 8a to 8n in the elevator hall, and 10 indicates a case where all the number of waiting customers cannot fit into the cars assigned to that floor. This is a device for determining leftover items.

In the device configured in this manner, the number of people and their coordinates existing within the detection range are detected by the number of people detector 2 as described above. In addition, the number of waiting customers in the entire elevator hall is calculated from the divided detection range 8a to
The number of waiting customers existing within 8n is detected by the number of people within the division range detection section 9. Here, customers waiting in the up direction are generally guided to gather in front of the car where the arrival forecast light in the up direction is lit, and passengers waiting in the down direction are generally guided to gather in front of the car where the arrival forecast light in the down direction is lit. We will be guided to gather in front of you. Therefore, the elevator control device 7 can know the number of waiting passengers who will board the car whose arrival forecast light is on, based on the output of the number of people within the division range detection section 9.

On the other hand, the left-stack determining device 10 determines the number of waiting passengers who will actually board the car whose arrival forecast light is on, based on the output of the number of passengers within the division range detection section 9 and the output of the number of passengers in the car detection device 6. Depending on whether the sum of the number of passengers in the car exceeds the car capacity, it is determined whether or not there is a backlog, and if it is determined that a backlog has occurred, an output signal indicating this is supplied to the elevator control device 7. do. That is, based on the outputs of the number of people within the division range detection unit 9 and the left-stack determination device 10, the elevator control device 7 determines whether the left-stack is actually occurring and the remaining waiting passengers operate the hall call button again. It is possible to determine that an unloaded car will occur before the assigned car arrives at the floor. Therefore, you can add and allocate another car before the car arrives.
As a result, passengers left behind in the previously allocated cars can quickly gather in the additionally allocated cars.

Alternatively, it is possible to cancel the allocation of the car that has already been allocated and to allocate another car in which the number of additional boarding passengers is greater than the number of waiting passengers. However, when changing assignments, after turning off the previous arrival warning light,
It is possible to turn on the arrival forecast light of a separately assigned car. In this way, the elevator control device 7 controls the car group 5 while making decisions based on the relationship between the number of waiting customers and the number of people who can board, thereby reducing the sense of impatience among waiting customers and improving the overall operation of the elevator. It becomes possible to significantly increase efficiency.

In addition, in the above embodiment, a case has been described in which the number of waiting passengers in the elevator hall is detected using energy waves, and the number of passengers in the car is detected by a weighing device, but the present invention is not limited to this. Needless to say, it is not necessary to use a device for detecting the number of people, such as a television camera or a floor mat switch.

As explained above, according to the elevator control device according to the present invention, the number of passengers in the car and the number of waiting passengers existing in the divided zones of the elevator hall are detected, and the zone near the car where the car arrival forecast light is lit is detected. If it is determined that the sum of the number of waiting customers and the number of passengers in the car exceeds the capacity of the car, another car will be added or the current allocated car will be canceled and another car that can accommodate all the waiting customers will be allocated. The predicted distribution ratio in the up and down directions by the number divider that allocates the car is incorrect, and the number of waiting customers in the up and down directions differs from the actual number, resulting in unfilled waiting passengers where not all waiting passengers can board the cars assigned to that floor. Even if such a situation occurs, it is possible to quickly provide car service to these unloaded waiting passengers, and to quickly allow unloaded passengers to board additionally allocated cars, thereby reducing the feeling of frustration among waiting passengers and improving elevator service. It has an excellent effect of increasing overall operating efficiency.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing conventional detection of the number of waiting customers, FIGS. 2 and 3 are diagrams for explaining the operation of FIG. 2, and FIG. 4 is a block diagram showing conventional elevator control. FIG. 5 is a plan view showing the elevator hall, and FIG. 6 is a system block diagram showing the elevator control device according to the present invention. DESCRIPTION OF SYMBOLS 1... Transducer/receiver, 2... Number of people detector, 4... Number of people allocator, 5... Car group, 6... Number of passengers in the car detecting device, 7
...Elevator control device, 8...Elevator hall,
9...Detection unit for the number of people within the division range, 10...Remaining stock determination device. Note that the same parts in the figures are indicated using the same reference numerals.

Claims (1)

[Claims] 1 A passenger number detection device that separately detects the number of passengers in each elevator car, and a waiting passenger number detection device that divides the elevator hall into multiple zones corresponding to the cars and detects the number of waiting passengers in each zone. a device, a number distribution means for predicting the number of waiting passengers in the hall in upward and downward directions, and a car arrival prediction light and the number of passengers detected by the passenger number detection device of the car whose car arrival prediction light is lit. Detects the number of waiting passengers in the zone of the elevator hall near the car where the lamp is lit.It is determined whether or not the sum of the number of waiting customers detected by the above-mentioned waiting passenger number detection device exceeds the capacity of the car. An elevator control device comprising an unstacked car determination device that determines the presence or absence of an unstacked car and controls the allocation of additional cars or another car when it is determined that an unstacked car occurs.