WO2001055025A1

WO2001055025A1 - Control/monitoring system and control/monitoring method for evevator

Info

Publication number: WO2001055025A1
Application number: PCT/JP2000/000482
Authority: WO
Inventors: Toshio Masuda
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2000-01-28
Filing date: 2000-01-28
Publication date: 2001-08-02

Abstract

A control/monitoring system comprising a plurality of respective unit control boards (1a) and (1b) which manage and control, as a group, the operations of elevator cages which are controlled by the respective unit control boards, a monitoring board (8) which monitors the operations of the plurality of respective unit control boards and a respective unit control/monitoring communication bus (17) for connecting the respective unit control boards and the monitoring board together, wherein a monitoring means which receives a part of information data which can be information data for the monitoring of the respective unit control boards and are included in group management and control information data which are transmitted to the respective unit control/monitoring communication bus is provided in the monitoring board, whereby an exclusive interface for a monitoring device is not necessary and hence a cost can be reduced. Further, when abnormalities caused by the respective unit control boards under group management and control are detected during monitoring, the monitoring board practices group management and control.

Description

Specification

Control monitoring system and control monitoring method for elevator

Technical field

The present invention relates to a control monitoring system and a control monitoring method for an elevator, and more particularly to a communication process between a control panel and a monitoring panel of each unit.

Background art

FIG. 5 is a block diagram showing a configuration of a conventional control and monitoring system of this type, which is disclosed in, for example, Japanese Patent Application Laid-Open No. 5-922883.

In Fig. 5, the conventional control and monitoring system of the elevator system has a CPU (not shown) in which each unit control panel 1a, 1b, which performs group management control by a plurality of individual unit control panels, internally operates according to a program. ), And the local buses 6a and 6b of each unit control unit 3a and 3b control communication of each unit The devices 4a and 4b and the monitoring communication devices 5a and 5b for communicating monitoring information of each elevator are connected. In addition, each unit control communication device 4a of each unit control panel 1a and each unit control communication device 4b of each unit control panel 1b are connected by a control communication bus 7 for each unit to mutually transmit and receive data. Have been.

On the other hand, a monitoring unit including a CPU (not shown) that operates according to a program is provided inside the monitoring panel 8, and a local bus 11 of the monitoring unit 9 has a dual port RAM or a The monitoring communication device 10 having a shared memory is provided. The monitoring communication devices 5 a and 5 b of the control panels la and 1 b and the monitoring communication device 10 of the monitoring panel 8 are each a monitoring communication bus 12 that is a second bus-type transmission path. Connected with.

Next, the transmission / reception operation in the conventional system will be described with reference to FIG. A description will be given of a communication process for performing group management between each control panel 1a and 1b, in which each control panel 1a transmits group management control information to each control panel 1b. For example, when transmitting the position information and the non-interference time information of the car (not shown) of the elevator, which is the group management control information of each unit control panel 1b, the information is transmitted to each unit by the unit control unit 3a. Each unit control panel number is added to each unit control communication bus 7 via the control communication device 4a and output. Each unit control communication device 4 b of each unit control panel 1 b The group management control information transmitted to the server 7 is received, and this data is transmitted to each unit control unit 3b, and the communication of the group management information is established.

Next, with respect to the communication operation of the monitoring information of the elevator operation, a case will be described in which each unit control panel la transmits the position information of the elevator (not shown). Since the monitoring panel 8 is connected to each vehicle monitoring communication bus 12, the car position information is transmitted to each vehicle monitoring communication bus 12 via each vehicle monitoring communication device 5 a. Is output. The monitoring information transmitted to each monitoring communication bus 12 is written into a dual port ram (not shown) of the monitoring communication device 10 in the monitoring panel 8, and the monitoring unit 9 reads the written data and monitors the data. Communication of visual information is established.

In the control and monitoring system for ELEBE overnight as described above, two transmission lines were used: a control communication bus for each unit and a communication communication bus for monitoring each unit. The control of each car for group management operation control of the elevator car requires mutual communication between a plurality of car control panels via the car control communication bus. On the other hand, the monitoring data for each unit for monitoring system abnormalities is based on the dual-port memory or shared memory used by the monitoring panel connected to the monitoring communication bus. It is only necessary to carry out communication. Therefore, since the content of the information, the data format, and the communication format were different, it was necessary to prepare separate transmission lines for control and monitoring. In other words, two transmission lines were required to realize the group management function and the monitoring function.

Furthermore, since the transmission lines for each unit control communication bus and each unit monitoring communication bus are separated, each connected unit control panel checks whether there is an abnormality in the communication data transmitted and received on each unit control communication path. Detected. In this case, if each of the multiple control panels that perform group management control detects an error in the control communication bus, the group management control among the multiple control panels will not function at all. There was.

Therefore, according to the present invention, the information that can be used as the information for monitoring each control panel included in the group management control information is monitored as monitoring information, so that the entire control and monitoring can be performed with one transmission path. The purpose is to provide a control monitoring system and a control monitoring method for ELEBE.

In addition, when each control panel performing group management control detects an error in the communication bus, the monitoring panel takes over the group management control, and the group management control back-up between each control panel is performed. Function is provided.

Disclosure of the invention

According to a first aspect of the present invention, there are provided a plurality of individual control panels for group-controlling and controlling the operation of each elevator car to be controlled; a monitoring panel for monitoring the operation of each of the plurality of individual control boards; A control communication bus for connecting each of the plurality of control panels and the monitoring panel, and a control management communication bus for connecting the plurality of control panels and the monitoring panel, wherein each of the monitoring panels is included in group management control information for group management transmitted to each control and monitoring communication bus. The control and monitoring system according to the present invention is characterized in that the control and monitoring system is provided with monitoring means for receiving and monitoring, as monitoring information, part of information that can be used as information for monitoring the control panel.

According to a second aspect of the present invention, there is provided the monitoring means, wherein the monitoring panel monitors abnormalities in data from the control panels, and abnormalities in car assignment processing information performed by the control panels performing group management control. An abnormality control panel determining means for determining whether the abnormality is an abnormality of each of the control panels performing group management control when the abnormality is detected, and controlling the group management by the abnormality control panel determining means. Group management control means for performing group management control on each of the plurality of unit control panels via the respective unit control monitoring communication bus when it is determined that each of the control panels being performed is abnormal. 2. The control and monitoring system for an elevator according to claim 1, wherein

According to a third aspect of the present invention, the abnormal control panel determining means performs group management control even after a predetermined time has elapsed after the car position information from any of the individual control panels on the individual control and monitoring communication bus. 3. The elevator according to claim 2, wherein when there is no information on the car assignment process from each of the control panels, the control panel performing group control is determined to be abnormal. In the evening control and monitoring system.

According to a fourth aspect of the present invention, a plurality of control panels communicate group management control information via a communication bus to perform group management control of the operation of each elevator car to be controlled. An elevator characterized by receiving, as monitoring information, a part of information that can be information for monitoring each control panel included in the group management control information transmitted to the communication bus as monitoring information and performing monitoring. Control monitoring method.

A fifth aspect of the present invention is a process for monitoring abnormalities in data from each of the above control panels, abnormalities in car assignment processing information performed by each of the control panels performing group management control, A step of, when an abnormality is detected, determining whether the abnormality is an abnormality of each of the control panels performing group management control; and determining that each of the control panels performing group management control is abnormal. 5. The method according to claim 4, further comprising a step of performing group management control on the plurality of control panels at times.

In a sixth aspect of the present invention, in the determining step, group management control is performed even after a lapse of a predetermined time after the car position information from any of the control panels on each of the control and monitoring communication buses. 6. The system according to claim 5, wherein when there is no information on the car assignment process from each of the control panels, the control panel performing group management control is determined to be abnormal. In the control and monitoring method.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram showing a configuration of a control and monitoring system for an elevator according to a first embodiment of the present invention;

FIG. 2 is a flowchart showing the operation of the monitoring panel in the second embodiment of the present invention. FIG. 3 is a functional block diagram of the monitoring panel in the second embodiment of the present invention.

FIG. 4 is a diagram showing an example of an operation when detecting an abnormality of the group management control according to the second embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of a conventional control and monitoring system for an elevator.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Example 1

FIG. 1 is a diagram showing a configuration of a control and monitoring system for an elevator according to a first embodiment of the present invention. Each of the unit control panels 1a and lb includes a unit control unit 3a and 3b for controlling an elevator including a CPU (not shown) that operates according to a program. 3a, 3b single-car buses 6a, 6b send and receive control information for each unit, and control and monitor communication devices for each unit for transmitting and receiving monitoring information to and from the monitoring panel 8 14a, 14 b is connected. Each control panel 1a, 1b has the same configuration ο

The monitoring panel 8 includes a CPU (not shown) that operates according to a program. A monitoring unit 21 for monitoring the operation of the monitoring unit 21 is provided. A communication control device 20 for transmitting / receiving monitoring information while transmitting / receiving control information is connected to the local bus 11 of the monitoring unit 21. I have. Each unit control monitoring communication device 14a of each unit control panel 1a, each unit control monitoring communication device 14b of each unit control panel 1b, and communication control unit 20 of monitoring unit 8 Connected to communication bus 17.

For convenience of explanation, the number of each control panel is two, but more control panels 1 may be connected to each control monitoring communication path 17.

Next, regarding communication data for group management between each control panel 1a and 1b, the case where each control panel 1a transmits group management control information to each control panel 1b, The case of transmission to the monitoring panel 8 will be described.

For example, when transmitting position information of a car (not shown) and non-interference time, which are group management control information for each control panel 1b, the control unit 3a of each unit passes through the control monitoring communication device 14a of each unit. Then, each unit control panel number is added to each unit control monitoring communication bus 17 and the information is output. Each unit control monitoring communication device 14 b of each unit control panel 1 b receives the group management control information transmitted to each unit control monitoring communication bus 17 and transmits this data to each unit control unit 3. The communication of the group management information is established.

On the other hand, since the monitoring information included in the group management control information is also included in the group management control information, the communication control device 20 of the monitoring panel 8 receives the group management control information transmitted to each unit control monitoring communication bus 17. Then, the monitoring unit 21 can receive, as the monitoring information, the position information of the car which can be the monitoring information, which is a part of the received data, and the communication of the monitoring information is established.

Example 2.

In this embodiment, the backup is performed when the monitoring panel 8 detects an abnormality in the group management control. FIG. 2 is a flowchart showing the operation of the monitoring panel 8 in this embodiment, particularly the operation of the monitoring unit 9.

The operation will be described according to the flowchart of FIG. 2.The monitoring panel 8 connected to the control / monitoring communication bus 17 of each unit turns on the normal power supply in step 31 and completes initialization. The communication data of the monitoring communication bus 17 can be received, and the monitoring of the communication state starts. In step 33, for example, the group control information such as the position information of the car (not shown) is not transmitted, the format of the communication data is abnormal, etc. It monitors for abnormalities, such as when the data in the above is abnormal, or when there is no car assignment processing information to be performed by the control panels that perform group management control. At this time, if it is abnormal, it is determined in step 34 whether or not the abnormal device is the control panel of each unit that is performing group management processing. If it is determined that the abnormal device is a control panel for each unit that is performing group management processing, the monitoring unit 21 starts the group management control program P prepared in advance in step 35 to perform group management control. Realize.

For example, when the group management processing function built in each control panel 1a fails, the monitoring panel 8 receives the position information of the car (not shown) output from each control panel 1b, and the monitoring section 21 Car group assignment processing is performed, and group management control is realized by transmitting car assignment information to each of the normal car controllers 1b.

Fig. 3 shows a functional block diagram of the monitoring panel 8. The monitoring means 8a, the abnormality control panel determination means 8b, and the proxy group management control means 8c correspond to steps 33, 34, 35 in FIG. 2, respectively.

FIG. 4 shows a data communication performed on each control and monitoring communication bus 17. In the figure, reference numeral 41 denotes group management control information such as car position information transmitted from each control panel 1b to 1a, and reference numeral 42 denotes a car output from each control panel 1a performing group management processing. This is group management control information indicating the allocation processing. If the control panels and buses of each unit are normal, information is transmitted and received as shown in Fig. 4A.

Here, when the control panel 1a becomes abnormal, the group management control information 42 is not generated as shown in FIG. 4B. Since the monitoring panel 8 monitors the communication data of each unit control monitoring communication bus 17, the group management control information 42 must be communicated for a certain period of time d from the predetermined output time to be output. Then, the group management processing section of each unit control panel 1a judges that there is an error, and outputs group management control information 51 indicating car assignment processing to each unit control panel lb, and each unit control unit 1b outputs this data. Operate the car based on

Industrial applicability

As described above, according to the first and fourth aspects of the present invention, a plurality of individual control panels for controlling and controlling the operation of each elevator car to be controlled, A monitoring panel for monitoring the operation of the control panel; and a control / monitoring communication bus for connecting the plurality of control panels and the monitoring panel to each other. The monitoring panel is transmitted to the control / monitoring communication bus for each unit. A monitoring means for receiving and monitoring, as the monitoring information, part of the information that can be used as the monitoring information of each control panel included in the group management control information for group management. Since the control and monitoring system of the evening and the control and monitoring method based on this are used, there is no need to prepare a dedicated interface for the monitoring device, and the cost can be reduced.

Further, according to the second and fifth aspects of the present invention, the monitoring panel is configured to perform a car assignment process performed by each of the control panels that perform the abnormalities of the data from the control panels and the group management control. Monitoring means for monitoring information abnormality; abnormality control board determination means for determining, when detecting the abnormality, whether or not the abnormality is an abnormality of each control panel performing group management control; A group for performing group management control on each of the plurality of unit control panels via the above-mentioned unit control monitoring communication bus when each of the unit control panels performing group management control by the abnormality control panel determination means is determined to be abnormal. The system is characterized by having a management control means and a control control method based on the system, so that the control panel can receive the control information of each control panel that is communicating with the node. The panel judges whether the control information is abnormal and It is possible to back up the management control.

Further, according to the third and sixth aspects of the present invention, the abnormal control panel determining means determines that the predetermined time has elapsed after the car position information from any of the individual control panels on the individual control / monitoring communication bus. The system characterized in that, when there is no information on car assignment processing from each car control panel performing group management control, the car control panel performing group management control is determined to be abnormal. Since the control monitoring method is based on the system, it is easy to determine whether or not the abnormality is from each control panel that performs group management control.

Claims

The scope of the claims

1. A plurality of control boards for controlling the operation of each elevator car to be controlled in groups.

A monitoring panel for monitoring the operation of each of the plurality of control panels;

And a control / monitoring communication bus for connecting the plurality of control panels and monitoring panels, and the monitoring panel is included in the group management control information for group management transmitted to each control / monitoring communication bus. An elevator control monitoring system comprising a monitoring means for receiving and monitoring, as monitoring information, a part of information that can be information for monitoring each control panel.

2. The monitoring panel monitors the abnormalities of the data from the control panels of the respective vehicles, the monitoring means for monitoring the abnormalities of the car assignment processing information performed by the control panels controlling the group, and the detection of the abnormalities. Abnormality control panel determining means for determining whether the abnormality is an abnormality of each of the control panels performing group management control,

When each of the control panels performing group management control is determined to be abnormal by the abnormality control panel determination means, the group control is performed on the plurality of control panels via the control communication communication bus. Group management control means;

The control and monitoring system according to claim 1, further comprising:

3. Each of the control panels which performs the group management control even after a lapse of a predetermined period of time after the car position information from any of the control panels on the control and communication bus of the control of each of the above-mentioned cars. 3. The control and monitoring system for elevators according to claim 2, wherein when there is no information on the car assignment processing from the control unit, each control panel performing the group management control is determined to be abnormal.

4. A plurality of control panels communicate group management control information via a communication bus to control and control the operation of the elevator cars controlled by each group, and the group transmitted to the communication bus. A control and monitoring method for an elevator in which a part of information which can be information for monitoring each control panel included in the management control information is received and monitored as monitoring information.

5. A process of monitoring for abnormalities in the data from the above-mentioned control panels and for abnormalities in the car assignment processing information performed by the control panels for performing the group management control; A step of, when detecting the abnormality, determining whether the abnormality is an abnormality of each of the control panels performing group management control; and

A step of performing group management control on each of the plurality of unit control panels when it is determined that each unit control panel performing group management control is abnormal;

5. The control and monitoring method of an elevator according to claim 4, further comprising:

6. In the above-mentioned judgment process, the car is assigned from each car control panel which performs group management control even if a predetermined time has passed after the car position information from any car control panel on the car control monitoring communication bus. 6. The control and monitoring method according to claim 5, wherein when there is no report on the processing, it is determined that each of the control panels performing the group management control is abnormal.