JPH0383781A - Elevator control apparatus - Google Patents

Abstract

PURPOSE:To prevent each cage position indicating device from indicating an unnatural elevator cage position by providing a position indicating data computing device which causes a high speed running indicating device of the case position indicating device to indicate a high speed running mode when an elevator cage runs at a speed higher than a predetermined speed. CONSTITUTION:A cage position indicating data producing unit 9 provided to an elevator control device 1 in a machine room determines whether an elevator cage runs at a speed higher than a predetermined speed or not, in accordance with a running speed data signal 18, and if it is not on a high speed running, a cage position data 17 is delivered from a cage position detecting unit 7, directly to a main station 2. Further, it it is on a high speed running, a high speed running indicating data stored in the cage position indicating data producing unit 9 is delivered, as a cage position indicating data signal 19, to the main station 2. Accordingly, since the indication mode is changed over into a high speed running indication mode during a high speed running mode in which a cage position indicating device 5 cannot exactly indicate a cage position, the user does never feel to be strange or unusual.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention consists of a main station provided in the control device of an elevator machine room, and a remote station provided in each floor landing, inside the car, and on the monitoring panel. The present invention relates to an elevator control device that performs serial transmission to control a car position display device in a hall, inside a car, and on a monitoring panel.

(Prior Art) Generally, an elevator control device notifies elevator users of the current position of a car by means of a car position display device provided at a landing on each floor, inside the car, and on a monitoring panel.

In recent years, remarkable advances in semiconductor technology have improved the performance and reduced the cost of microcomputers, and they are rapidly becoming popular in general industry. Therefore, even in the field of elevator control, devices that employ microcomputers and serial transmission have become widely available for the purpose of facilitating installation work and maintenance.

Elevator control equipment equipped with a serial transmission system using such a microcomputer is equipped with a main stage 1 equipped with a microcomputer in the control equipment in the machine room, and microcomputers are also installed at each floor landing, inside the car, and on the monitoring panel. The main station receives the car position and running direction signals as input, sends car position signals to each remote station, and displays the car position on the car position display device at each floor landing, inside the car, and on the monitoring panel. I try to make it possible.

(Problem to be Solved by the Invention) However, in such a conventional elevator control device, in the case of serial transmission, each station run shares the signal line, so the position display data controlled by the remote station on a given floor cannot be transmitted. Updates take a certain amount of time.

For example, the main station calls the remote station of the car position display device on the first floor using a signal line, and then sends position display data to the same signal line to update the data of the remote station for controlling the car position display device on the first floor. After that, use the same procedure to display each car position display device on the 2nd floor, 3rd floor, etc., then the car position display device in the car, the car position display device on the monitoring panel, and the remote station position in sequence. In order to update the car position display data, the cumulative time required for controlling each of these car position display devices is required as a whole to update the car position display data.

Now, if the data update procedure at one remote station requires 1005 seconds, the time required to update the data at all remote stations from the display control remote stage on the 1st floor in a building on the 10th floor is as follows: It becomes like this.

100ssec
2 sec Here, ■ is the hall remote station data update time, ■ is the car remote station data update time, and ■ is the monitoring panel remote station data update time.

When the time required for such data updating becomes long, there is a problem that it adversely affects the car position display of the car position display device, especially in high-speed elevators.

In other words, as shown in Fig. 5, if we consider the case where the car moves directly from the 1st floor to the 10th floor, the car speed increases at a constant acceleration, reaches a constant speed at the 4th floor, and reaches the 7th floor. It decelerates at a constant deceleration from the position of 1
Although the speed is controlled so that the car stops at the 0th floor, the data update time of the remote station is always constant, and this data update time t is equal to the travel time Tn (n=
1°2,...), that is, timing τ1
The car position can be displayed correctly at 6 and timings τ9 to τ14, but the travel time for one floor is longer than the data update time t.
When the time becomes shorter than , the update of the car position data cannot follow the movement of the car position, and the timing τ7 to τ8
This results in the car position display skipping, and the car position cannot be displayed correctly.

The present invention has been made in view of these conventional problems, and an object thereof is to provide an elevator control device that does not display an unnatural car position even in a high-speed elevator without increasing the serial transmission performance. purpose.

[Battle Bottom of the Invention] (Means for Solving the Problems) This invention provides serial transmission between a main station provided in the control device of the elevator machine room and remote stations provided in the landings of each floor, inside the car, and on the monitoring panel. Due to the landing,
In an elevator control device that controls each car position display device provided on a car and a monitoring panel, a position display data calculation device is provided in the control device of the elevator machine room, and the car position display device at each floor landing, inside the car, and on the monitoring panel. A high-speed running display device is provided in the car, and when the elevator car starts to run at a predetermined speed or higher according to the position display data calculation device, the high-speed running display device of each car position display device displays a high-speed running display. This is what I did.

(Function) In the elevator control device of the present invention, the position display data calculation device determines whether the traveling speed is so high that the car position cannot be displayed correctly.

Then, while the traveling speed is below a predetermined value, each car position display device displays the car position, but when the traveling speed is higher than the predetermined value, the car position is displayed on each car position display device. Instead of having the vehicle do this, the high-speed travel display device can display a message indicating that the vehicle is traveling at high speed, giving the user a sense of security even when traveling at high speed.

(Example) Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

FIG. 2 shows an embodiment of a microcomputer-applied elevator control device that uses a general serial transmission method. A control device 1 in the elevator machine room includes a main station 2 that controls the entire elevator and receives data transmission with each remote station, and a position display data calculation unit 3.
are provided.

Each floor landing is equipped with a remote station 4 for data transmission with the main station 2 and a position display device 5 whose display is controlled by the remote station 4. Furthermore, a remote stage haze 4 is installed inside the car and on the monitoring panel. and a position display device 5 are provided.

The main station 2 and each remote station 4 are connected by a transmission path 6 consisting of a pair of signal lines.

FIG. 1 shows a more detailed configuration of the machine room control device 1. The position display data calculation unit 3 is composed of a car position detection unit 7, a running speed detection unit 8, and a car position display data creation unit 9. The input signals are a running pulse signal 10 that is manually input according to the distance that the car travels, and a driving direction signal 11 that indicates the direction in which the car is moving.

Further, the car position detection unit 7 includes an up/down counter 12, a floor data storage element 13, and a decoder 14.
The traveling speed detection unit 8 includes a frequency-voltage (CF/V) converter 15 and a comparator 1.
It consists of 6.

Next, the operation of the elevator control device having the above configuration will be explained.

First, the serial transmission method will be explained. In this embodiment, the Wyclick scan method is adopted, and the main station 2 has control over the transmission. Each remote stage 5-4 is assigned a predetermined address for position display device control output. and,
Each remote station 4 receives the address data sent from the main station 2 through the transmission line 6, and then inputs the position display data sent from the main station 2 only if it is its own address. The position is displayed by outputting it to the position display device 5 at the location.

Next, the operation of the position display data calculation unit 3 provided in the control device 1 of the machine room will be explained.

In FIG. 1, a running pulse signal 10 and a driving direction signal 11 are input to a car position detection unit 7, which calculates the car position and outputs car position data 17. A running pulse signal 10 is input to the running speed detection unit 8, and running speed data 18 is outputted. The car position display data creation unit 9 receives the car position data 17 and running speed data 18 as input, and outputs the car position data or high speed running display data signal 19 to the main station 2 depending on the magnitude of the running speed.

More detailed operations of the car position detection unit 7 and traveling speed detection unit 8 will be explained. First, in the car position detection unit 7, based on the running pulse signal 10 and the running direction signal 11, when the up/down counter 12 is in the up direction, the running pulse is counted up, and when it is in the down direction, the running pulse is counted down, and the decoder 14
give to Then, the decoder 14 determines the car position from the running pulse count based on the floor data in the floor data storage element 13, and provides the car position data signal 17 to the car position display data creation unit 9.

Further, in the traveling speed detection unit 8, the traveling pulse signal 10
is converted into a voltage signal by an F/V converter 15, and compared with a reference voltage Vref by a comparator 16. This reference voltage Vref is a running pulse signal 1 corresponding to a running speed at which the car position can be correctly displayed following the movement of the car.
This is the voltage value obtained when the frequency of 0 is converted into voltage by the F/V converter 15, and is given to the comparator 16 in advance.

If the running speed instruction voltage from the F/V converter 15 is equal to or higher than the reference voltage Vref, the comparator 16 outputs a running speed data signal 18 indicating that the vehicle is running at high speed.

The car position display data creation unit 9 operates based on the flowchart shown in FIG.
If the car is not running at high speed, the car position data 17 from the car position detection unit 7 is output directly to the main station 2 (step S2). If so, the built-in high speed running display data is outputted to the main station 2 as the car position display data signal 19 (step S3).

This operation will be explained in more detail with reference to the graph shown in FIG. Considering the case where an elevator car travels from the first floor to the tenth floor, the traveling speed of the car increases at a constant acceleration from a stopped state. However, while the remote station data update time t is shorter than the time required for the car to travel the distance of one floor, that is, from τ1 to τ6, the traveling speed of the car is the reference speed Vref.
(Here, since the output voltage V of the F/v converter 15 is proportional to the running speed of the car, the following will be explained in terms of voltage signals.) In this case, the position display device 5 displays the position of each position display device 5 as the car moves. Since the car can be tracked, the car position is displayed.

However, if the car speed increases beyond the reference speed Vref, the position display will no longer be able to follow the car movement, so this timing chart will switch to the high-speed running display,
A, B, C, . . . are displayed.

As the car approaches the destination floor and decelerates at a constant rate,
Although the car speed falls below the reference speed Vref again, the car position display returns again in this timing chart.

In this way, when the car position display device 5 cannot correctly display the car position, the user may feel strange or unnatural when viewing the display on the position display device 5 by switching to the high-speed driving display during high-speed driving. You will be able to use it with a sense of security without any problems.

In addition, as a display during high-speed running, the position display device 5 displays the floor number and the letters A, B, and C as a display during high-speed running.
,... In addition to providing a display indicating that the vehicle is traveling at a high speed, it is also possible to provide an indicator light that indicates ``Driving at high speed'' and turn it on or flash when the vehicle is traveling at a high speed. In this case, the display mode is not particularly limited.

[Effects of the Invention] As described above, according to the present invention, when the car position display device is unable to follow the actual car position change during high-speed travel, the car position display device switches to the high-speed travel display. The car position display device does not skip over or become unable to display the car position, and it can show users that they are traveling at high speed, giving them a sense of security and improving service. .

[Brief explanation of drawings]

FIG. 1 is a block diagram of the main parts of an embodiment of the present invention, and FIG.
The figure is a block diagram showing the overall configuration of an embodiment of the present invention.
FIG. 3 is a flowchart showing the operation of the car position display data creation unit of the above embodiment, FIG. 4 is a timing chart showing the operation of the above embodiment, and FIG. 5 is a timing chart showing the operation of the conventional example. . 1... Control device 2... Main station 3... Position display data calculation unit 4... Remote station 5... Position display device 6... Transmission line 7... Car position detection unit 8. ...Traveling speed detection unit 9...Car position display data creation unit Daisanjin patent attorney Hidekazu Miyoshi! 2 Figure 3 Figure 5

Claims (1)

[Scope of Claims] Each car position provided in the landing, car, and monitoring panel is transmitted through serial transmission between a main station provided in the control device of the elevator machine room and a remote station provided in each floor landing, car, and monitoring panel. In an elevator control device that controls a display device, a position display data calculation device is provided in the control device of the elevator machine room, a high speed running display device is provided in the car position display device in each floor landing, in the car, and on the monitoring panel, and the above-mentioned position An elevator control device configured to cause a high-speed travel display device of each car position display device to display a high-speed travel indication when an elevator car is set to travel at a predetermined speed or higher according to a display data calculation device.