JP2502713B2 - Elevator monitoring system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an elevator monitoring system, and particularly to an elevator monitoring system suitable for remote monitoring.

[Conventional technology]

Generally, elevators are regularly monitored by maintenance personnel so that prompt measures can be taken against accidents and breakdowns. However, in recent years, such an elevator monitoring system is changing to an elevator monitoring system that is constantly monitored by an elevator monitoring device located in a remote place, and in many cases, the existing elevator is modified by modifying it. Was there.

One of the methods is a modification of the elevator control panel, which will be described with reference to FIG. The elevator 1 is controlled by an elevator control panel 2, and these are monitored by an elevator monitoring device 4, and when an abnormality is detected, the elevator monitoring device 4 communicates with the central monitoring device 5 via a communication line 6. In the elevator control panel 2, a microcomputer 2a for controlling the signal of the elevator 1, a memory 2b for storing the control information thereof, and a maintenance person carrying and reading and writing the control information are shown. An I / O port 2c connectable to a maintenance device and an input / output interface 2d for transmitting a signal from the micro computer 2a to the outside are provided. Also, elevator monitoring device 4
Inside is a microcomputer 4a for controlling it, and a memory 4b for storing control information including its operation information.
And communication port 4c for taking in information, and elevator 1
Is provided with a communication port 4d for sending information to the outside when an abnormality is detected in the microcomputer 4a.
It has input buffers A3 and B3 for inputting information to. The elevator monitoring device 4 is driven by rectifying the electric power from the power supply 41 with the rectifying device 42.

In order to remotely monitor from the elevator monitoring device 4 with such an apparatus, the elevator control panel 2 is provided with the non-voltage relay contacts A2 and B2 for providing the elevator monitoring device 4 with necessary information. In addition, output buffers A0 and B0 and relays A1 and B1 must be added at any time depending on the amount of information. That is, the microcomputer 2a controls the signal of the elevator 1 and
A signal is output from the input / output interface 2d and output buffer
Control A0 and B0. Information from the output buffers A0, B0 is transmitted to the relays A1, B1 and drives the non-voltage relay contacts A2, B2. The information of the non-voltage relay contacts A2 and B2 is transmitted to the microcomputer 4a through the input buffers A3 and B3 in the elevator monitor 4. Based on the information, the microcomputer 4a monitors the elevator 1, and when a predetermined condition is satisfied, the monitoring information is transmitted from the communication port 4d to the central monitoring device 5 via the communication line 6,
I was able to cope with accidents and breakdowns.

[Problems to be Solved by the Invention]

Since the conventional elevator monitoring system involves modification of the inside of the elevator control panel as described above, it is necessary to design the modification of this elevator control panel at the time of modification, which requires a lot of time. Also, the number of information that must be provided to the elevator monitoring device is actually large, and although FIG. 2 shows only two relays and two output buffers, it is actually a large number. In some elevators, additional space may be specially created for the large number of relays and output buffers, resulting in increased costs and longer working hours.

An object of the present invention is to provide a case where a lot of control information for elevator monitoring is required without modification of the elevator control panel even when the data communication modes of the elevator control panel and the elevator monitoring device are different. Even so, it is to provide a small and low-cost elevator monitoring system that does not require many parts or spaces for housing parts for communication connection between them.

[Means for solving the problem]

In order to achieve the above object, the present invention has a communication means conversion device that connects an elevator control panel and an elevator monitoring device, and the communication means conversion device is an I / O in the elevator control panel.
According to the request from the I / O port connected to the O port, the communication port connected to the communication port inside the elevator monitoring device, and the elevator monitoring device, the control information is read from the memory inside the microcomputer of the elevator control panel. The data communication form is converted into a form required by the elevator monitoring device and output.

[Action]

The microcomputer of the elevator control board stores the control information of the elevator in operation in the built-in memory. When there is a request to read the elevator control information from the elevator monitoring device, the communication means conversion device causes the control computer to read the control information from the memory in the microcomputer of the elevator control panel, and through the I / O port connecting them. Upon reception, the data communication form conversion means converts the received control information into the data communication form required by the elevator monitoring device, and outputs it to the elevator monitoring device via the communication port.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. The same parts as those in FIG. 2 are designated by the same reference numerals, and detailed description thereof will be omitted.

The elevator 1 is controlled by the elevator control panel 2, and its I / O port 2c is connected to the I / O port 3a of the communication means converter 3 composed of an interface board. The information from here is converted by the first communication means conversion circuit 31 to enable optical communication, further converted by the second communication means conversion circuit 32, and transmitted to the elevator monitoring device 4 via the communication port 3z. Sent. The two communication means conversion circuits, which are the main components of the communication means conversion device 3, are configured as follows. First communication means conversion circuit
Reference numeral 31 is for storing a communication control program which has a first communication conversion means and operates by the microcomputer 2a.
It comprises a ROM 3e, a memory 3f for storing the information read from the memory 2b, and a communication port 3g for transmitting the converted information by optical communication. The second communication means conversion circuit 32 includes a communication port 3y for receiving information in optical communication, a microcomputer 3w having a second communication conversion means,
It comprises a memory 3x for storing the information processed by the microcomputer 3w and a communication port 3z for transmitting the converted information to the elevator monitor 4. Between these two communication means conversion circuits, communication ports 3g, 3y
Since optical communication is performed between the elevators and the power supply insulation device 3b such as a DC / DC converter is provided, even if strong noise is induced to the elevator monitoring device 4 from the outside, the elevator control panel 2 will not operate. Basically not affected.

 With this configuration, the operation is as follows.

The first communication means conversion circuit transmits control information including the operation information of the elevator stored in the memory 2b in the elevator control panel 2 requested by the second communication means conversion circuit 32 via optical communication to the first communication means conversion circuit. The communication control program stored in the ROM 3e having one communication conversion means reads out via the I / O port 3a, and the control information is transmitted to the second communication means conversion circuit 32 through optical communication.

The operation of the second communication means conversion circuit 32 which receives the control information will be described with reference to the program configuration diagram of FIG.

The second communication means conversion circuit 32 transmits the control information requested from the elevator monitoring device 4 via the communication ports 4c and 3z,
The task switcher 3S created by the software operates by switching the following three programs to perform the predetermined conversion processing on the control information received via the communication port 3y, and then the elevator via the communication port 4c. It transmits to the monitoring device 4. That is, the elevator control information reading program 3-Way ₁ for storing control information to the elevator control information storage table 3T ₁ in memory 3x, the control information of the elevator control information storage table 3T ₁ to request data from the elevator monitoring apparatus 4 The data conversion program 3P ₂ for converting and storing the request data in the request data storage table 3T ₂ in the memory 3x, and the elevator monitoring device 4 requests from the request data in the elevator control information storage table 3T ₂ . Select data and communication port
A data communication program that sends that data via 3z
By going switched task switcher 3S three program with 3-Way _3, the request data obtained by converting the control information is to be transmitted to the elevator monitoring apparatus 4.

In response to this, the elevator monitoring device 4 receives the central monitoring device 5 via the communication port 4d when a predetermined condition is satisfied.
Report to.

Since the communication means conversion device 3 used here is composed of an interface board for converting the control information read from the memory 2b of the elevator control panel 2 into the data in the form required by the elevator monitoring device 4, the elevator monitoring device 4
Regardless of the data communication mode of the internal communication port 4c, the elevator control panel 2 of any data communication mode can be monitored, and the elevator monitoring system can be unified.

〔The invention's effect〕

As described above, the present invention is provided in the elevator control panel.
According to the request from the I / O port connected to the I / O port, the communication port in the elevator monitoring device, and the elevator monitoring device, the control information is sent from the memory in the microcomputer of the elevator control panel. Since the communication means conversion device having the data communication form conversion means for reading out and converting the data communication form into the form required by the elevator monitoring device and outputting is connected between the elevator control panel and the elevator monitoring device. , Even if the data communication mode of the elevator control panel and the elevator monitoring device is different, even if a lot of control information for elevator monitoring is required without modification of the elevator control panel, Small, low-cost elevator monitoring system that does not require many parts or space to store parts for communication connection between It is possible to provide.

[Brief description of drawings]

1 is a block diagram of an elevator monitoring system according to an embodiment of the present invention, FIG. 2 is a block diagram of a conventional elevator monitoring system, and FIG. 3 is a communication means used in the elevator monitoring system according to an embodiment of the present invention. It is a partial program block diagram of a converter. 1 ... elevator, 2 ... elevator control panel, 2a ... microcomputer, 2c ... I / O port, 3 ... communication means conversion device, 3a ... I / O port, 3z ... communication port, 4
...... Elevator monitoring device, 4c …… Communication port, 5 …… Central monitoring device.

Claims (1)

(57) [Claims] 1. An elevator control panel having an I / O port for controlling elevator drive by a microcomputer, and a communication port for the elevator based on control information including operation information of the elevator by the microcomputer. In the elevator monitoring system including an elevator monitoring device that monitors the operating state of the elevator and notifies the central monitoring device when a predetermined condition is satisfied, a communication means conversion device that connects the elevator control panel and the elevator monitoring device is provided. The communication means conversion device is an I / O port connected to the I / O port in the elevator control panel, a communication port connected to the communication port in the elevator monitoring device, and the elevator monitoring device. According to the request from the control information from the memory in the elevator control board microcomputer Read thereby, the elevator monitoring system, characterized in that the data communication form equipped with data communication mode conversion means for converting the form of the elevator monitoring device requests.