JP2871920B2 - Abnormality detection device for elevator control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control including a plurality of control means for controlling various operations of an elevator.
The present invention relates to an abnormality detection device of an elevator control device that detects an abnormality of the device.

[0002]

2. Description of the Related Art In an elevator, for example, an elevator, various operations are shared and controlled by a plurality of computers. However, the occurrence of an abnormality in the elevator controlled in this way is monitored at a remote place. Monitoring at a center is common. An elevator monitoring system of this type will be described with reference to the drawings.

FIG. 3 is a block diagram schematically showing a conventional monitoring system. In this figure, reference numeral 1 denotes an elevator control panel, which is a first computer 2 for controlling the speed of the elevator and a second computer 2 for performing other controls of the elevator.
Computer 3 is provided. Reference numeral 4 denotes a power supply for driving the first and second computers 2 and 3. Reference numeral 5 denotes a terminal device, which constantly exchanges signals with the first computer 2 via the signal line 6 and constantly exchanges signals with the second computer 3 via the signal line 7. Reference numeral 8 denotes a monitoring center, which exchanges signals with the terminal device 5 via the telephone line 9.

In this monitoring system, when an abnormality occurs in the elevator, the second computer 3 determines the abnormality and transmits the abnormal data to the terminal device 5 via the signal line 7 . The terminal device 5 adds necessary data such as the elevator number of the elevator in which the abnormality has occurred to the abnormal data, and notifies the monitoring center 8 of the abnormality to notify the abnormality.

However, in this monitoring system, the second computer 3 stores a lot of control data on the elevator and executes various controls based on the lot of control data. It is impossible to grasp even the detailed contents of the occurrence of the abnormality, and only the fact of the occurrence of the abnormality is determined. Therefore, a monitoring system provided with a separate device for analyzing the content of the abnormality has been developed.

FIG. 4 is a block diagram showing an outline of a monitoring system provided with the above-mentioned abnormality analyzing device. In this figure, the same parts as those shown in FIG. Reference numeral 11 denotes a data collection device as an abnormality content analysis device, which is connected to the second computer 3. The data collection device 11 selectively extracts required data from the second computer 3 to determine the presence or absence of an abnormality. When an abnormality is detected, the data collection device 11 transmits the abnormal data to the terminal device 5 via the signal line 12 and, at that time, The data is stored and the abnormality is analyzed. The operation of the terminal device 5 that has received the abnormal data is the same as the operation described above.

[0007]

In the above-described monitoring system, a situation may occur in which signal transmission / reception cannot be performed on the signal lines 6, 7, and 12 between the elevator control panel 1 and the terminal device 5. In such a case, the terminal device 5 determines that the power supply 4 is abnormal and notifies the monitoring center 8 of the abnormality. The monitoring center 8 inquires of the power company whether or not there is a power outage,
If there is no power outage, the maintenance person is brought with a tool for repairing the failure of the power supply system, and the maintenance person is dispatched to the site. However, the situation in which signals cannot be transmitted / received through the signal lines 6, 7, 12 is not necessarily caused not only by the abnormality of the power supply 4, but also by the internal structure of the elevator control panel 1, the poor connection of the signal lines 6, 7, 12 and the disconnection. Occurs. In such a case, the inquiry about the power failure as in the prior art is wasted, and the tools for repairing the failure of the four power supplies carried by the maintenance personnel are also wasted, so that unnecessary labor and time are wasted.

An object of the present invention is to solve the above-mentioned problems of the prior art and to provide an abnormality detection device for an elevator control device capable of distinguishing between a power supply abnormality and other abnormalities.

[0009]

In order to achieve the above object, the present invention provides an elevator control apparatus including a plurality of control means for controlling various operations of an elevator, and a power supply for driving the elevator control apparatus. , The elevator control
In an abnormality detection device of an elevator control device in an elevator control unit including a terminal device that performs an abnormality notification to a monitoring center according to a state of signal transmission and reception with each control unit of the device, the terminal device includes : Detecting means for outputting a signal to each of the control means of the elevator control device to detect the presence or absence of a response to the signal; and all of the response signals are not detected.
At least, a failure determining means for determining that the power supply has failed .

[0010]

A plurality of control means included in an elevator control device
And the terminal device constantly exchange signals. In this state,
When the detecting means detects that some of the signal transmission and reception between each control means and the terminal device has been lost, the detecting means notifies the failure judging means. Here, the failure determination means determines that an abnormality has occurred on the elevator control device side since some of the signal transmission / reception has ceased, and notifies the monitoring center of this. On the other hand, when the detecting means detects that all the signals have been exchanged between each control means and the terminal device, it notifies the failure judging means. In this case the failure determination means, Jer
Judging that an abnormality has occurred in the power supply of the beta controller ,
This is reported to the monitoring center. Accordingly, the monitoring center can know whether an abnormality has occurred in the elevator control device or whether an abnormality has occurred in the power supply of the elevator control device according to the content of the notification.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a block diagram of an abnormality detection device for an elevator control unit according to an embodiment of the present invention. In this figure, the same parts as those shown in FIG. Reference numeral 2a denotes an MPU (microprocessing unit) of the first computer 2 of the elevator control panel 1,
Performs elevator speed control. The control result data is
Can be transferred to the computer 3. Reference numeral 2b denotes an input / output port of the first computer 2;
Data transmission / reception with the terminal device 5 is performed, for example, by transmitting data of the control result of a to the terminal device 5 via the signal line 6. 3
a is the MP of the second computer 3 of the elevator control panel 1
U, which controls other than the speed control of the elevator. 3
b denotes an I / F (interface) of the second computer 3, which transmits data of a control result of the MPU 3a to the data collection device 1
1 to transfer data to and from the data collection device 11. 11a is a data collection device 1 of the elevator control panel 1.
1 MPU and M of the first and second computers 2 and 3
From the data of the control results of the PUs 2a and 3a, the presence or absence of an abnormality in the elevator is determined and the details of the abnormality are analyzed. 11
b is an I / F of the data collection device 11, and the I / F3
b, the data received from the first and second computers 2 and 3 is transferred to the MPU 11a, and the data is exchanged with the I / F 3b. An input / output port 11c of the data collection device 11 exchanges data with the terminal device 5, such as transmitting abnormal data as a result of determination (analysis) by the MPU 11a to the terminal device 5 via the signal line 12.

Reference numeral 5a denotes an MPU of the terminal device 5, which controls the data of the control result of the first computer 2 and the data collection device 1
In addition to adding the machine number and the like to the abnormal data as the result of the analysis 1, various controls are performed according to a required program. 5b
Is an input / output port of the terminal device 5, and receives data received from the first computer 2 via the signal line 6
Data transfer with the first computer 2 such as transfer to the first computer 5a is performed. 5b ′ is an input / output port of the terminal device 5,
Data transmission / reception with the second computer 3 is performed by, for example, transferring data received from the second computer 3 via the signal line 12 to the MPU 5a. Reference numeral 5c denotes a memory of the terminal device 5, which stores a program for driving the MPU 5a and the like. In particular, in this embodiment, a failure detection program for discriminating between the abnormality of the power supply 4 in the elevator control panel 1 and other abnormalities is stored. 5d is terminal device 5
And transmits the processing result of the MPU 5a to the monitoring center 8 via the telephone line 9. 20 is a terminal device 5
Power supply.

The MPUs 2a and 3a of the second computer 3 and the data collection device 11 each have a function of transmitting a response signal when a signal is transmitted from the terminal device 5. Although not shown in the figure, it may be considered that the second computer 3 also has an input / output port for exchanging data with the terminal device 5.

FIG. 2 is a flowchart showing the operation of this embodiment. The MPU 5a driven based on the failure detection program first transmits data between the input / output ports 2b and 5b, and then receives the transmission (step S201). In this state, the first input / output port 5b
It is determined whether or not data from the computer 2 has been received (step S202). If it has been received, it is determined that the first computer 2 and the signal line 6 etc. are normal (step S203), but if not received, the first computer 2 and the signal line 6 etc. It is determined that it is abnormal (step S204). Subsequently, the MPU 5a transmits information between the input / output ports 5b ' and 11c, and then performs reception for the transmission (step S205). In this state, it is determined whether or not data from the second computer 3 has been received at the input port 5b ' via the data collection device 11 (step S20).
6). If received, via the data collection device 11
Te is the second computer 3 and the signal lines 12 or the like is determined that it is normal (step S207), if not received, a second call over the data acquisition device 11
It is determined that the computer 3, the signal line 12, and the like are abnormal (step S208). Then, MPU5a
Determines whether both the first computer 2 and the signal line 6 and the like, and the second computer 3 and the signal line 12 and the like via the data collection device 11 are normal (step S209). If both are normal, the process ends.

Now, one of them is abnormal,
That is, when only the first computer 2 and the signal line 6 and the like are abnormal, or when only the second computer 3 and the signal line 12 and the like are abnormal, it is determined that there is an abnormality other than the power supply 4 (step S210). After that, the process ends. Here, abnormal data representing abnormalities other than the power supply 4 is issued to the monitoring center 8 via the telephone line 9. On the other hand, if both are abnormal, it is determined that the four power supply systems are abnormal (step S
After 211), the process ends. Here the monitoring center 8
Then, abnormal data representing abnormalities of the four power supply systems is issued via the telephone line 9.

As described above, in the present embodiment, the M
The first computer 2 and the second computer are controlled by the PU 5a.
After the signals are output to the elevator 3 , the presence or absence of each of these response signals is detected, and based on the detection result, whether the internal structure of the elevator control panel 1 or the signal lines 6 and 12 is abnormal or the power supply 4 of the elevator control panel 1 Is determined, it is possible to report appropriate information discriminating between the abnormality of the power supply 4 and other abnormalities at the time of the abnormality report, so that unnecessary measures such as a power failure inquiry become unnecessary. In addition, it is possible to prompt maintenance personnel for appropriate instructions.

[0017]

According to the present invention, the terminal device has a detecting means for detecting a state of signal transmission / reception with each control means included in the elevator control device, and an internal structure of the elevator control device according to the detection result. Since the failure determining means for determining whether the abnormality is the abnormality or the power supply of the elevator control device is provided, when the abnormality occurs, the abnormality of the power supply of the elevator control device and other abnormalities can be correctly determined. As a result, the monitoring center side does not need to useless measures such as an inquiry about a power failure, and can prompt maintenance personnel to give an appropriate instruction.

[Brief description of the drawings]

FIG. 1 is a block diagram of an abnormality detection device for an elevator control panel according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 3 is a block diagram schematically illustrating a conventional monitoring system.

FIG. 4 is a block diagram schematically showing a conventional monitoring system capable of analyzing the content of an abnormality.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevator control panel 2 1st computer 3 2nd computer 4 Power supply 5 Terminal device 8 Monitoring center 5a MPU 5c Memory

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenji Kono 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside the Hitachi Building System Service Co., Ltd. (72) Inventor Hiroshi Kiyosugi 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Within Hitachi Building System Service Co., Ltd. (72) Hiroshi Yamazaki, Inventor 1-6-6 Kanda Nishikicho, Chiyoda-ku, Tokyo Stock Company Within Hitachi Building System Service Co., Ltd. (72) Inventor Hisakunori 1-6, Kandanishiki-cho, Chiyoda-ku, Tokyo (56) References JP-A-61-86376 (JP, A) JP-A-63-262382 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) ) B66B 3/00 B66B 1/34 B66B 5/02

Claims (1)

(57) [Claims] 1. An elevator control device including a plurality of control means for sharing and controlling various operations of an elevator, a power supply for driving the elevator control device , and the elevator control
In an abnormality detection device of an elevator control device in an elevator control unit including a terminal device that performs an abnormality notification to a monitoring center in accordance with a state of signal transmission and reception with each control unit of the device, the terminal device includes : Detecting means for outputting a signal to each of the control means of the elevator control device to detect the presence or absence of a response to the signal; and all of the response signals are not detected.
An abnormality detection device for an elevator control device , comprising: a failure determination unit configured to determine at least that the power supply has a failure when the power supply has failed .