JPH0967072A - Monitor for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent apparently unnatural display from being generated by providing a display unit for extracting data stored in a memory unit and displaying them, and by controlling the data to be displayed on the display unit so that the data may be selectively extracted from the memory unit. SOLUTION: When the operating state of an elevator, namely, the data for indicating the information of the car position, the operating mode, the direction, and the opening or closing state of a door are transmitted from two elevator control units 1A, 1B to a distributor 2 through a serial transmission network, and the data are supplied from the distributor 2 to a main processing unit 4 through a transport I/F circuit 3. The main processing unit 4 receives the data indicating the operating state by a receiving unit 41 and stores the received data in a memory unit 42. The data stored in the memory unit 42 are selectively extracted by a switch control unit 43 and so controlled as to be displaced on a display unit 5 such as a CRT device, and the switch control unit 43 is controlled by the switch operating request by a monitoring person.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in a monitoring room of a building, and receives the data indicating the operating condition from an elevator controller to check the operating condition of the elevator.
The present invention relates to a monitor device for an elevator that is displayed on a display device such as an RT device.

[0002]

2. Description of the Related Art An elevator monitoring device is installed in a building monitoring room, and receives and displays the operating status from the elevator controller, that is, the elevator car position, the presence / absence of an elevator failure, and control operation. It is a thing. In many conventional elevator monitoring devices, a large panel is installed in the monitoring room, and the position of the car and the operation state are displayed by LED or lamp on the panel surface.

However, as buildings have become large-scale and intelligent in recent years, an elevator using an industrial computer to receive data such as a car position and an operation state transmitted from an elevator controller and display the data on a CRT. Surveillance devices are increasingly used. In an elevator monitoring device that uses a CRT device as a display,
Even in a large building with a large number of elevators installed, a plurality of CRT devices can be prepared to sequentially switch and display the operating status of a large number of elevators to be displayed.
It has the advantage of requiring a smaller installation space than large panels. Further, in the CRT device, it is possible to arbitrarily display the information required by the supervisor, such as a screen displaying specifications of the service floor of each elevator and passenger capacity, a layout of each elevator in the building, etc. by switching screens. .

When the number of elevators to be monitored increases in a large-scale building or the like, not only the amount of data on the received operating state increases, but also the number of CRT screens for displaying them increases naturally. For example, considering a building where 40 elevators are installed, if the operating status of 40 elevators is displayed on one screen of a CRT device, the size of the screen per vehicle becomes small, and the amount of information that can be displayed is small. Also less. Therefore, it is more effective to prepare two CRT devices having screens of the same size and to display 20 CRT devices on each screen, which increases the amount of information that can be displayed for each elevator, and is effective as a monitoring device. As described above, the conventional elevator monitoring device has two or more screens and can be referred to by the monitoring staff (user) at any time.

Further, in recent years, the speed of elevators has been increased, and an elevator has been developed which travels at a speed of 800 m / min. Assuming that the floor height is about 3 m, at a speed of 800 m / min, it takes about 230 ms to move one floor. In such a high-speed operation elevator, the amount of information per unit time also increases, and the amount of data handled by the elevator monitoring device is large.

[0006]

As described above, in order to monitor the ultra-high speed elevator with the monitoring device, a high speed data communication process and a high speed drawing process of the CRT device or the like which is a display are required. If it cannot be dealt with, a display problem of the CRT device such as a jump in the position of the car display occurs.

In order to prevent these problems, in the conventional elevator monitoring device, the data communication process is executed with the highest priority first, the received data is sequentially stored in the storage device as soon as it is received, and the oldest received data is stored in order. It is configured to be taken out from and displayed.

However, as described above, when information is displayed on a plurality of CRT screens, the amount of drawing processing that must be executed when switching the screens is more than that of ordinary drawing processing for simply changing the car position. Much more. As the display screens of the display unit, there are a monitor screen for displaying the operation state of the elevator as shown in FIG. 6 and a reference screen for displaying the specifications of the elevator as shown in FIG. In the drawing process on the normal CRT screen that does not perform the switching operation between the monitor screen and the reference screen, for example, on the monitor screen shown in FIG. 6, it is possible to simply change the car position a, the operation mode b, and the direction c. is there. There is a screen change switch d at the lower right of the screen.

Now, a 21-inch CRT (1024 × 76)
When monitoring 20 elevators with a screen of 8 dots), the number of display dots in the car position a is 32 × 16 dots, the number of display dots in the operation mode b is 14 × 8 dots, and the directionality c
If the number of displayed dots is 8 × 16 dots, the drawing processing for a total of 1240 × 56 dots will be performed in the display of the operation state of 20 elevators, but these data do not change all at once. , It is possible to draw sequentially as the elevator runs.

On the other hand, the drawing process that must be executed when switching between the monitor screen (FIG. 6) and the reference screen (FIG. 7) is the entire screen, that is, 1024 × 768 dots. Drawing processing must be performed at one time by inputting a switching instruction.

As described above, when the surveillance staff who is looking at the reference screen (FIG. 7) inputs a command to switch to the surveillance screen (FIG. 6) to the monitoring device of the elevator, a great depiction process is required. In some cases, the load on the CPU in the monitoring device is temporarily increased, and the display of sequentially received data is delayed. Furthermore, since the load is reduced after the screen switching is completed, undisplayed data will be displayed rapidly one after another, and as a result, the display of car movement on the CRT will be temporarily faster, which is unnatural in appearance. There was a case where it was displayed.

Therefore, the present invention provides an elevator monitoring device that does not cause an unnatural display such as display delay, car position jump, or temporary high-speed display when switching screens. Is.

[0013]

SUMMARY OF THE INVENTION In order to solve the above conventional problems, the present invention provides an elevator control system for an elevator monitor having a function of receiving and displaying data indicating an operation state from an elevator controller. A data receiver for receiving data indicating the operating state from the device, and a storage device connected to the data receiver for storing the received data,
And a display controller for extracting and displaying the data stored in the storage, and a switching controller for controlling the data displayed on the display to be selectively extracted from the storage. Characterize.

That is, since the elevator monitoring device of the present invention has the switching controller having the next display data selection function, the data indicating the operation state is normally displayed from the oldest, but the screen from the monitor is displayed. When there is an operation input for switching and another screen is displayed, the switching controller can display the latest data and discard the old data so that it is not displayed. As a result, even if the load on the CPU due to screen switching increases temporarily, only the latest data is displayed next, so a natural display of the operating state becomes possible.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to FIGS.

FIG. 1 is an overall configuration diagram showing an embodiment of an elevator monitoring apparatus according to the present invention. The elevator operation status includes information such as car position a, operation mode b, direction c, and door opening / closing e. The data indicating the operation status is sent from the two elevator controllers 1A and 1B to the serial number in the building. Distributor 2 through the transmission network
Sent to The signal from the distributor 2 is supplied to the main processing unit 4 via the transmission interface circuit 3. The main processing unit 4 includes a receiver 41 that receives data indicating the operating state from the transmission interface circuit 3, a storage device 42 that stores the received data, and a data that is stored in the storage device 42 selectively. Extraction and asynchronous display 5 such as CRT device
And a switching controller 43 for controlling the display.

Since the switching controller 43 carries out a data file operation to the storage device 42 and a data fetching operation and a display control operation from the storage device 42 in response to a switching operation request by an observer, it includes a CPU 431 as shown in detail in FIG. It is composed of an industrial computer. The display 5
CRT screen operation at
The input operation is performed by the user.

FIG. 2 is a block diagram of the main processing section 4.
The main processing unit 4 operates on a real-time OS, and each processing is independently performed by time sharing. Data can be exchanged between the processes by signals on the OS.

The operation state data received from the elevator controllers 1A and 1B via the distributor 2 and the transmission interface circuit 3 is a receiver 41 composed of a reception circuit 411 of the main processing unit 4 and a transmission control circuit 412. Entered in. The received input data is stored in the storage device 42 by the processing of the data storage processing circuit 432 of the switching controller 43.
The next display data selection processing circuit 433 selects the data to be displayed next, and notifies the display circuit 434 of the storage destination of the data to be displayed next. The display circuit 434 reads out the data from the storage unit 42 and supplies it to the display unit 5 according to the notified storage destination.

On the other hand, when the screen switching request signal from the monitor is input to the user input circuit 435, the next display data selection processing circuit 433 causes the next display data selection processing circuit 433 to store the newest data among the data stored in the memory 42. Display circuit 434
However, when there is no screen switching request signal from the monitor, the display circuit 434 is notified of the storage destination of the oldest data. The CPU 431 is an arithmetic unit for drawing processing.

Next, FIG. 3 shows a flow chart of an outline of processing of the data storage processing circuit 432. The process of step 2a verifies whether the transmission control circuit 412 has received new data. When new data is received (YES), the display waiting record is referred to in step 2B, and a buffer (empty buffer) in which display waiting data is not stored is searched from the storage device 42. When no new data is received (N
O) repeats step 2a again. The display wait record is an array in which the indexes of the buffers in the storage device 42 are sorted and stored in the order of oldest received data. When the buffer contents are displayed, the buffer index is deleted from the record. Next, in Step 2C, it is verified whether or not there is an empty buffer, that is, a buffer in which the data already displayed on the display device 5 is stored in the storage device 42. If there is a free buffer (YES), the newly received data is stored in the free buffer in step 2d. Further, in step 2e, the index of the buffer storing the data is additionally updated in the display waiting record. On the other hand, if there is no empty buffer in step 2C (NO), the fact that the received data could not be stored (error) is displayed in step 2 to notify the user.

Next, FIG. 4 shows a flow chart of a processing outline of the next display data selection processing circuit 433. In step 3a, it is verified whether the user input circuit 435 notifies the screen change request by the monitor. When there is no notification of screen switching input (NO), the display waiting record is referred to in step 3B to search for the index of the buffer storing the oldest received data. If the screen change request is notified in step 3a, the display waiting record is referred to in step 3c to find the index of the buffer storing the latest received data, and then in step 3d, the display waiting The record is cleared, and in step 3e, the display circuit 434 is notified of the buffer index found in step 3b or step 3c as the next display data storage destination.

Next, FIG. 5 shows a flow chart of an outline of processing of the display circuit 434. In step 4a, it is verified whether or not the next display data selection processing circuit 433 notifies the buffer index as the storage destination of the next display data. If the buffer index is notified (YES), the data content of the buffer indicated by the buffer index notified in step 4B is read, and the read data is drawn on the screen of the display 5 of the CRT device in step 4C. To do. Next, in step 4d, the index of the buffer storing the data content that has been rendered is deleted from the display wait record, the display wait record is re-sorted in the oldest order, and then there is no notification in step 4a (NO). With this, this operation is repeated thereafter.

Note that the main processing unit 4 may be a system in which the respective functions operate sequentially, instead of the processing operating on the real-time OS. Further, the input means for the user's screen switching request may be an input device such as a keyboard, a mouse, or a light pen, instead of the touch screen.

As described above, according to the present invention, by the asynchronous control of the switching controller 43, old data can be abandoned and the latest data can be displayed at the time of screen switching, and the load on the CPU 431 for drawing processing. It is possible to provide an elevator monitoring device in which it is difficult for an apparently unnatural display such as a display delay, a car position jump, and temporary high-speed movement to occur even if the display temporarily increases.

[0026]

According to the elevator monitoring apparatus of the present invention, it is possible to avoid an unnatural display such as a display delay, a car position jump, or even a temporary high-speed movement even when switching screens, and in practical use. The effect is large.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an elevator monitoring device according to the present invention.

FIG. 2 is a configuration diagram showing details of a main processing unit in FIG.

3 is a flowchart showing an operation of a data storage processing circuit of a main processing section shown in FIG.

FIG. 4 is a flowchart showing an operation of a next display data selection circuit of the main processing section shown in FIG.

5 is a flowchart showing the operation of the display circuit of the main processing section shown in FIG.

FIG. 6 is a diagram showing a screen of an elevator operation state displayed on a display in the elevator monitoring device.

FIG. 7 is a diagram showing a screen for referring to elevator specifications displayed on a display in the elevator monitoring device.

[Explanation of symbols]

 1A, 1B Elevator controller 3 Transmission interface circuit 4 Main processing unit 41 Receiver 42 Storage device 43 Switching controller 431 CPU 432 Data storage processing circuit 423 Secondary display data selection circuit 434 Display circuit 5 Display device

Claims (2)

[Claims] 1. A monitoring device for an elevator having a function of receiving and displaying data indicating an operation state from an elevator controller, and a data receiver for receiving the data indicating the operation state from the elevator controller; A storage connected to the data receiver for storing the data, a display for extracting and displaying the data stored in the storage, and the data displayed on the display selectively from the storage. And a switching controller that controls so that the elevator is monitored. 2. The elevator monitoring apparatus according to claim 1, wherein the switching control unit controls switching so that the latest data stored in the storage unit is selected and displayed on the display unit.