JP2007169032A - Control device of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device of a passenger conveyor capable of shortening operation stopping time, even when processor failure is caused when operating the passenger conveyor. <P>SOLUTION: The control device has an input network switch 2 distributing a plurality of input data, a plurality of processors 3a, 3b and 3c respectively processing and outputting the input data distributed by the input network switch 2, and an output network switch 4 distributing and respectively outputting processing data respectively outputted from the plurality of processors as processing data corresponding to the plurality of input data. The output network switch 4 has the failure state monitoring function of indicating processing of the input data to the input network switch 2 to be distributed to the other processor when failure of the processor is caused, by monitoring a failure state of the plurality of processors by monitoring whether or not the processing data from the plurality of processors is the same as a predetermined signal. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a control device for passenger conveyors such as escalators and moving walkways.

  Conventionally, a power supply system including a power converter and a power supply system that bypasses the power supply system are formed. In a steady state, the power supply system including the power converter is operated. There is a control device for a passenger conveyor that restarts operation by switching the power supply system to bypass (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2000-199852

  However, in the above-described passenger conveyor control device, there is a problem that a redundant system is not configured for a processor failure in a control device equipped with a processor.

  The present invention has been made in view of the above problems, and controls a passenger conveyor that constitutes a processor redundancy system and can reduce the operation stop time even when a processor failure occurs during operation of the passenger conveyor. An object is to provide an apparatus.

  The control apparatus for a passenger conveyor according to the present invention includes an input network switch that distributes a plurality of input data, a plurality of processors that process and output the input data distributed by the input network switch, and the plurality of processors Output network switches that distribute the processing data output from each of them as processing data corresponding to the plurality of input data and output the processing data, respectively, and the output network switch predetermines processing data from the plurality of processors. The failure status of the plurality of processors is monitored by monitoring whether the signal is the same as the received signal, and the input network switch is instructed to distribute the processing of the input data to other processors when the failure of the processor occurs. Has failure status monitoring function And wherein the door.

  According to this invention, the failure status of a plurality of processors is monitored by the output network switch, and when the processor failure occurs, the processing of the input data is distributed to the other processors. By instructing the distribution, real-time performance can be ensured with the hardware configuration with the minimum number of processors according to the processing status of all received data. Shortening can be achieved.

Embodiment 1 FIG.
FIG. 1 is an overall view of a passenger conveyor according to Embodiment 1 of the present invention, and FIG. 2 is a block diagram showing a passenger conveyor control apparatus according to Embodiment 1 of the present invention.
The passenger conveyor 8 shown in FIG. 1 is driven and controlled based on the control of the control device 7, and the control device 7 has a plurality of input data 1a input from the preceding stage as shown in FIG. 1b, 1c, a plurality of processors 3a, 3b, 3c that process and output the input data distributed by the input network switch 2, and the plurality of processors 3a, 3b, And an output network switch 4 for distributing the processing data output from 3c as processing data corresponding to the plurality of input data and outputting the processing data.

  Here, the output network switch 4 monitors whether the processing data from the plurality of processors 3a, 3b, and 3c is the same as a predetermined signal, thereby monitoring the plurality of processors 3a, 3b, and 3c. It has a failure status monitoring function for monitoring the failure status and instructing the input network switch 2 to distribute input data processing to other processors when a processor failure occurs.

  Examples of input data include input signals from safety switches and operation panels, automatic operation escalators, sensor input signals, motor operation commands, variable speed escalators, and I / F with an inverter. In the case of a signal (pulse signal from a motor encoder) and a remote monitoring panel, an activation command from the remote monitoring panel can be exemplified. In the illustrated example, the number of input data, the number of processors, and the number of output data is three. However, the present invention is not limited to this and can be applied to a plurality of examples.

Next, an operation of processing a plurality of input data in the passenger conveyor control device according to the above configuration will be described.
Input data 1a to 1c input to the input network switch 2 from the previous stage is distributed and sent to the processors 3a to 3c, respectively.
The processors 3 a to 3 c execute processing of input data and output the obtained processing data to the output network switch 4.
The output network switch 4 has a failure status monitoring function for determining a failure status by monitoring whether or not the processing data from the processor is the same as a predetermined signal. For example, any one of the processors 3a to 3c If the processing data from the other processor is different from a predetermined signal, the processor determines that the failure has occurred, and instructs the input network switch 2 to distribute the processing to other processors. Of course, if there is no processing data from the processor, it can be immediately judged as a failure, and the input network switch 2 is instructed to distribute the processing to other processors.

Here, the operation at the time of failure of the processor 3a will be described with reference to FIG.
In FIG. 3, for example, when the output network switch 4 does not detect the processing data from the processor 3a, the output network switch 4 determines that the processor 3a has failed, and the input network switch 2 An instruction is given to distribute the input data 1a to be output to 3a to another processor, in this case, the processor 3b. Then, the output network switch 4 distributes and outputs the two processing data processed by the processor 3b to the output data 5a and 5b, respectively.

  As described above, according to the first embodiment, the output network switch 4 monitors the processing status of each processor and instructs the input network switch 2 to distribute the input data. Real-time performance can be ensured with a hardware configuration with the minimum number of processors according to the processing status of the system, and even if a processor failure occurs during operation of the passenger conveyor, the operation stop time can be shortened. Can be planned.

It is a general view of the passenger conveyor which concerns on Embodiment 1 of this invention. It is a block diagram which shows the control apparatus of the passenger conveyor which concerns on Embodiment 1 of this invention. It is explanatory drawing of the operation example of the control apparatus of the passenger conveyor which concerns on Embodiment 1 of this invention.

Explanation of symbols

  1a, 1b, 1c input data, 2 input network switch, 3a, 3b, 3c processor, 4 output network switch, 5a, 5b, 5c output data, 7 control device, 8 passenger conveyor.

Claims (1)

An input network switch that distributes multiple input data;
A plurality of processors each processing and outputting input data distributed by the input network switch;
An output network switch that distributes processing data output from each of the plurality of processors as processing data corresponding to the plurality of input data and outputs the processing data;
The output network switch monitors the failure status of the plurality of processors by monitoring whether or not the processing data from the plurality of processors is the same as a predetermined signal. A passenger conveyor control device comprising a failure condition monitoring function for instructing the input network switch to distribute the processing to another processor.

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