JP5115710B2 - Multiple configuration control apparatus, multiple configuration control method, and multiple configuration control program - Google Patents

Description

  The present invention relates to a multiple configuration control apparatus, and more particularly to a multiple configuration control apparatus having a multiplexed redundant configuration.

  In a device having a multiplexed redundant configuration, one or a certain number of system failures can be tolerated, but if multiple systems fail at the same time, the operation will be hindered. From a preventive standpoint, if it is used to some extent before it breaks down, it will be replaced. Note that the system indicates individual components in a multiplexed redundant configuration. The system is classified into an active system and a standby system.

  In order to efficiently perform the replacement, there has been a technology that promotes replacement by maintaining and managing the accumulation of usage status and reporting when the upper limit for maintenance is exceeded. However, in the multiplexed configuration, only system switching is performed by paying attention to the load and power consumption, and a situation in which multiple faults occur at the same time due to the end of life at a plurality of locations has not been considered much.

  Up to now, the system switching control means in a multiplexed redundant configuration has been able to notify the time when maintenance replacement is required by monitoring the accumulated usage time, and can prompt the maintenance replacement. However, the maintenance replacement is necessary. When there was a close time between systems, there was no other way than to replace the maintenance at the same time. Since the need for maintenance and replacement indicates that there is a high possibility of failure, there is a possibility of failure in each system at the same time in spite of the multiplexed configuration.

As a related technique, a multiplex transmission system is disclosed in Japanese Patent Laid-Open No. 6-086360 (Patent Document 1).
In this related technology, the number of operations of the input / output device is counted from the reply signal data, the time for which the input / output device is turned on is measured, these values are stored, and the state value and alarm set value of the input / output device are stored. When the status value of the input / output device exceeds the alarm set value, it is determined that the terminal has reached the end of its life, and for example, an alarm with the address of the terminal is output to the display device on the master unit. To do.

JP-A-6-086360

  The present invention records the usage status of the components of each multiplexed system of a device having a redundant configuration, and rests unused systems so that the accumulated usage time of each multiplexed system is almost the same period. By selecting the system to be used so that the upper limit value for maintenance is not exceeded, the situation where all the systems fail simultaneously is avoided. In particular, a field that is effective as an object of the present invention is control of a configuration that includes parts that need to be replaced regularly because of failure due to aging such as a light emitting element or a movable part.

  In the present invention, there are means for adding / holding the accumulated usage time to the parts for maintenance replacement and means for recording / holding the upper limit value for maintenance, and compare them with the units of each system of the multiplexed configuration. Means are needed. In addition, the system to be used is selected so that the cumulative usage time of all the systems does not exceed the maintenance upper limit value at the same time, that is, the difference in the cumulative usage time of each system becomes a certain time or more. Select the system as follows. Further, the suppression of the increase in the accumulated usage time can be realized by performing an operation to cut off the power supply to the unused system at an arbitrary time.

  The multiple configuration control apparatus of the present invention adds a cumulative use time of each of the systems that are energized among a plurality of multiplexed systems, and maintains a cumulative use time of each of the plurality of systems And the accumulated usage time of each of the plurality of systems, and if the difference between the cumulative usage times of any two of the plurality of systems is not secured for a certain time, the first of the two systems System switching control means for switching the current system to the standby system to suppress energization and switching the second system to the active system for energization.

  The multiple configuration control method of the present invention includes a step of adding the accumulated usage time of each of the systems that are energized among the plurality of multiplexed systems, and maintaining the accumulated usage time of each of the plurality of systems; If the accumulated use time of each of the plurality of systems is acquired and the difference between the accumulated use times of any two of the plurality of systems is not secured for a certain time, the first of the two systems Switching to the standby system to suppress energization, and switching the second system to the active system and energizing.

  The multiple configuration control program of the present invention includes adding a cumulative usage time of each of the systems that are energized among a plurality of multiplexed systems, and holding the cumulative usage time of each of the plurality of systems; If the accumulated use time of each of the plurality of systems is acquired and the difference between the accumulated use times of any two of the plurality of systems is not secured for a certain time, the first of the two systems Is a program for causing the computer to execute a step of switching the standby system to deter energization and switching the second system to the active system and energizing.

  By adjusting the increase in the accumulated usage time to some extent, it is possible to adjust the time required for preventive maintenance replacement so that there is no overlap in each system.

Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings.
Referring to FIG. 1, the multiple configuration control apparatus of the present invention includes a system switching control unit 10, a system control unit 11, and a system control unit 12.

  The system switching control unit 10 has a function of controlling each system, such as determining which of the multiplexed systems is used, and determining whether or not energization is performed. The system control unit 11 and the system control unit 12 are prepared for each of the multiplexed systems, and have functions of adding and holding the accumulated usage time and energization control. The system control unit 11 and the system control unit 12 add the accumulated usage time only when the system is active (the system is energized), and add the cumulative usage time when the system is the standby system. Not performed. In this embodiment, since it is a duplex configuration, the system control unit 11 and the system control unit 12 mounted in each system have the same mechanism.

  The system switching control unit 10 includes a system switching information determination unit 101, a counter system control communication unit 102, and a system switching information holding unit 103.

  The system switching information determination unit 101 determines the selection of the system to be used and the presence / absence of energization of the unused system based on the information of each system. The pair control communication unit 102 instructs communication with each system and the presence / absence of energization, and collects the accumulated usage time and the presence / absence of energization of each system at regular intervals. Further, the counter system control communication unit 102 determines whether each system is energized or not in accordance with an instruction from the system switching information determination unit 101. The system switching information holding unit 103 holds the collected information for identifying individuals of each system, the accumulated usage time, and the presence / absence of energization.

  The system control unit 11 includes a power supply control unit 111, an information management unit 112, and an information holding unit 113.

  The power supply control unit 111 controls energization of the system according to an instruction from the system switching control unit 10. The information management unit 112 is responsible for adding and managing the accumulated usage time. When the power supply control unit 111 permits energization, the information management unit 112 adds the accumulated usage time acquired from the information holding unit 113 and calculates the updated accumulated usage time. The information holding unit 113 is instructed to hold it. Note that the information management unit 112 adds the accumulated usage time only when the system is active (the system is energized), and does not add the accumulated usage time when the system is the standby system. Also, the individual identification information and the accumulated usage time are returned in response to a request from the system switching control unit 10. The information holding unit 113 holds individual identification information and accumulated usage time.

  The system control unit 12 includes a power supply control unit 121, an information management unit 122, and an information holding unit 123.

  The power control unit 121, the information management unit 122, and the information holding unit 123 correspond to the power control unit 111, the information management unit 112, and the information holding unit 113, respectively. Since each component of the system control unit 12 is the same as that of the system control unit 11, the description thereof is omitted.

  As examples of the system switching information determination unit 101, the counter system control communication unit 102, the power control unit 111, the information management unit 112, the power control unit 121, and the information management unit 122, a CPU (Central Processing Unit) or a microprocessor ( a semiconductor integrated circuit that functions as a processing device such as a microprocessor, or a system switching information determination unit 101, a counter system control communication unit 102, a power control unit 111, an information management unit 112, a power control unit 121, and an information management unit 122. (IC) etc. are conceivable. Note that the system switching information determination unit 101, the counter system communication unit 102, the power control unit 111, the information management unit 112, the power control unit 121, and the information management unit 122 may be programs or hardware functions. However, actually, it is not limited to these examples.

  Further, as examples of the system switching information holding unit 103, the information holding unit 113, and the information holding unit 123, a storage device such as a memory or a storage, or a storage medium (media) can be considered. However, actually, it is not limited to these examples.

  Further, when the system switching control unit 10, the system control unit 11, and the system control unit 12 are independent devices and are connected via an external network, the paired control communication unit 102 and the information management unit 112 are connected. As an example of the information management unit 122, a network adapter such as a NIC (Network Interface Card), a communication device such as an antenna, a communication port such as a connection port (connector), or the like can be considered. (Local Area Network), wireless LAN (Wireless LAN), mobile phone network, WiMAX, 3G (3rd generation mobile phone), dedicated line, IrDA (Infrared Data Association), Bluetooth (registered trademark), serial communication line, etc. Et That. However, actually, it is not limited to these examples.

Next, the operation of this embodiment will be described with reference to FIG.
In the system switching of the duplex configuration in this embodiment, it is assumed that immediacy is not required, and the standby system is not energized at an arbitrary time. Also, a certain time is ensured for the difference in the accumulated usage time of each system. Here, it is assumed that 50 is necessary for the difference in accumulated usage time of each system.

  FIG. 2 shows the state change along the time series. The state of the system control unit at each time point and its transition are shown.

With reference to FIG. 3, the operation flow of this embodiment according to the state change of FIG. 2 will be described.
(1) Step S101
Although the initial state is time 0, the time when the states of the system control unit 11 and the system control unit 12 are acquired for the first time is time 0, and there is no information at this time, so the system control unit 11 is unconditionally set as the active system. And
(2) Step S102
At time 0, the system switching control unit 10 determines that it is necessary to switch the operating system in order to secure a difference in accumulated usage time of 50 from the collected statuses of the respective systems, and sets the system control unit 11 to the standby system. Further, the system control unit 12 is switched to the active system. Here, at time 0, the system switching control unit 10 sets a system with a short accumulated usage time (control unit 11) as a standby system and a system with a long cumulative use time (system control unit 12) as an active system. Judgment.
(3) Step S103
At time 1, the system switching control unit 10 determines that the energization of the system control unit 11, which is a standby system, needs to be suppressed in order to secure a difference in accumulated usage time of 50, and does not energize the system control unit 11. Instruct. In addition, since both systems are energized at this point, the cumulative usage time increases for both systems.
(4) Step S104
At time 2, the system switching control unit 10 determines that energization of the system control unit 11, which is a standby system, needs to be suppressed in order to secure a difference in accumulated usage time of 50, but energization has already been suppressed. Therefore, do not give instructions. Since energization of the system control unit 11 is suppressed, the cumulative usage time increases only for the system control unit 12.
(5) Step S105
At time 3, the system switching control unit 10 determines that energization of the system control unit 11, which is a standby system, needs to be suppressed in order to secure a difference in accumulated usage time of 50, but energization is already suppressed. Therefore, do not give instructions. Since energization of the system control unit 11 is suppressed, the cumulative usage time increases only for the system control unit 12.
(6) Step S106
Thereafter, the same state continues until time 41 is reached.
(7) Step S107
At time 41, the system switching control unit 10 recognizes that a difference in accumulated usage time of 50 has been secured and determines that control such as system switching is unnecessary. Since energization of the standby system is optional, the start of energization is not instructed. Since energization of the system control unit 11 is suppressed, the cumulative usage time increases only for the system control unit 12.
(8) Step S108
The same state continues from time 42 until time 81 is reached.
(9) Step S109
At time 82, when the system switching control unit 10 recognizes that a failure has occurred in the system control unit 12 that is the active system, the system switching control unit 10 switches the system control unit 11 that is the standby system to the operating system and instructs the start of energization.
(10) Step S110
Further, the system switching control unit 10 instructs the failed system control unit 12 to be a standby system and at the same time to suppress energization.
(11) Step S111
At time 83, the system control unit 11 becomes an active system and energization is started. However, since the system control unit 12 remains in a failure state, an operation for ensuring a difference in accumulated usage time is not necessary.
(12) Step S112
At time 84, since there is no state change, only the cumulative usage time of the energized system control unit 11 is increased.

  If it is a device capable of hot-swapping, the operation is resumed by replacing the failed system control unit 12, but by using the accumulated usage time acquired anew, it is possible to return to time 0 as necessary. Judgment / behavior is applied.

As described above, the present invention has the following effects.
The first effect is that it is possible to predict the maintenance replacement time associated with the aging deterioration by grasping the accumulated usage time.
The second effect is that an increase in the accumulated usage time, that is, the progress of aging deterioration can be adjusted by switching the standby system at the arbitrary time.
The third effect is that the time required for preventive maintenance replacement can be adjusted so as not to overlap in each system by adjusting the increase in the accumulated usage time to some extent.

The second embodiment of the present invention will be described below.
As a second embodiment of the present invention, an example in which a triple configuration with increased redundancy is realized without changing the basic configuration will be described. The configuration is shown in FIG. In this figure, the system controller 13 is added to FIG.

  Referring to FIG. 4, the multiple configuration control apparatus of the present invention includes a system switching control unit 10, a system control unit 11, and a system control unit 12.

  The system switching control unit 10, the system control unit 11, and the system control unit 12 are the same as those in the first embodiment.

  The system control unit 13 includes a power supply control unit 131, an information management unit 132, and an information holding unit 133.

  The power control unit 131, the information management unit 132, and the information holding unit 133 correspond to the power control unit 111, the information management unit 113, and the information holding unit 113, respectively. Since each component of the system control unit 13 is the same as that of the system control unit 11, the description thereof is omitted.

  Further, it is assumed that the system switching in the present embodiment requires immediacy, and even the standby system cannot be in a state where no power is supplied at any time. Therefore, it is necessary that one of the standby systems is always energized. It is assumed that the difference in accumulated usage time of each system needs to be 50 as in the first embodiment.

  FIG. 5 shows the state change along the time series. The state of the system control unit at each time point and its transition are shown. In addition to the items shown in FIG. 2, as an example where immediacy is required, an item of load demand that changes depending on the situation and processing content is added. The value indicated by the load demand indicates the necessary number, and it is assumed that the system in the operating state needs to exist more than the load demand.

With reference to FIG. 6, the operation flow of this embodiment according to the state change of FIG. 5 will be described.
(1) Step S201
At time 0, the system switching control unit 10 recognizes that the difference in accumulated usage time of the system control units 11 to 13 is less than 50, but there is no room to suppress energization because the load demand is 2. Therefore, do not switch the system or suppress energization.
(2) Step S202
At time 1, since there is no change in load demand, the system switching control unit 10 determines that there is no room for suppressing energization, and does not perform system switching or energization suppression as in the case of time 0.
(3) Step S203
Thereafter, the same state continues until time 49 is reached.
(4) Step S204
At time 50, the system switching control unit 10 recognizes that the load demand has become 1, and determines that it is necessary to increase the number of standby systems (standby systems) in order to ensure the difference in accumulated usage time. Then, the system control unit 11 that is currently in the operating state is changed to the standby state. That is, the system control unit 11 is changed from the first active system to the first standby system. Here, it is assumed that the system control unit 12 is the second active system. Further, it is assumed that the system control unit 13 is a second standby system.
(5) Step S205
At time 51, the system switching control unit 10 recognizes that the load demand and the number of systems in the operating state match, and there are a plurality of systems in the standby state. Recognize that energization of one of the systems in the state can be suppressed. The system switching control unit 10 determines that it is necessary to de-energize the system control unit 13 from the accumulated usage time of the system control unit 11 and the system control unit 13 that are in the same standby state, and Instruct them not to energize. At this time, since all the systems are energized, the accumulated usage time increases in all the systems.
(6) Step S206
At time 52, the system switching control unit 10 recognizes that there is no change in load demand and that the energization of the system control unit 13 is suppressed and the accumulated usage time does not increase, but the system control units 11 to 13 Since there is no change that the difference in accumulated use time is less than 50, it is determined that no further treatment can be performed, and no further system switching or energization control is performed.
(7) Step S207
At time 53, the system switching control unit 10 does not change that there is no change in load demand and that the difference in accumulated usage time of the system control units 11 to 13 is less than 50. And do not control energization.
(8) Step S208
Thereafter, the same state continues until time 100 is reached.
(9) Step S209
At time 101, the system switching control unit 10 recognizes that the difference in accumulated usage time between the system control unit 11 and the system control unit 13 has reached 50, and determines that the next switching is necessary. That is, as control for ensuring the difference in accumulated usage time between the system control unit 11 and the system control unit 12, it is necessary to suppress the energization of the system control unit 11. If energization of a certain system (standby system) control unit 13 is not resumed, it is determined that energization of the system control unit 11 cannot be suppressed, and the system control unit 13 is instructed to resume energization.
(10) Step S210
At time 102, the system switching control unit 10 recognizes that the energization of the system control unit 13 has been resumed, and performs system control as control for ensuring the difference in accumulated usage time between the system control unit 11 and the system control unit 12. The unit 11 is instructed to prevent energization.
(11) Step S211
At time 103, the system switching control unit 10 recognizes that there is no change in the load demand and that the energization of the system control unit 11 is suppressed and the accumulated usage time does not increase. Since there is no change that the difference in the accumulated usage time of the control unit 12 is less than 50, it is determined that no further treatment can be performed, and no further system switching or energization control is performed.
(12) Step S212
At time 104, the system switching control unit 10 does not change that there is no change in load demand and that the difference in accumulated usage time between the system control unit 11 and the system control unit 12 is less than 50. It is determined that the measure cannot be implemented, and no further system switching or energization control is performed.
(13) Step S213
Thereafter, the same state continues until time 141 is reached.
(14) Step S214
At time 142, the system switching control unit 10 recognizes that the difference in accumulated usage time between the system control unit 11 and the system control unit 12 has reached 50, and determines that the next switching is necessary. That is, as control for ensuring the difference in accumulated usage time between the system control unit 11 and the system control unit 13, it is necessary to suppress the energization of the system control unit 13. If energization of a certain system (standby system) control unit 11 is not resumed, it is determined that energization of the system control unit 13 cannot be suppressed, and the system control unit 11 is instructed to resume energization.
(15) Step S215
At time 143, the system switching control unit 10 recognizes that energization of the system control unit 11 has been resumed, and system control is performed as control for ensuring the difference in accumulated usage time between the system control unit 11 and the system control unit 13. The unit 13 is instructed to suppress energization.
(16) Step S216
At time 144, the system switching control unit 10 recognizes that there is no change in load demand and that the energization of the system control unit 13 is suppressed and the accumulated usage time does not increase. Since there is no change that the difference in accumulated usage time of the control unit 13 is less than 50, it is determined that no further treatment can be performed, and no further system switching or energization control is performed.
(17) Step S217
At time 145, the system switching control unit 10 does not change that there is no change in load demand and that the difference in accumulated usage time between the system control unit 11 and the system control unit 13 is less than 50. It is determined that the measure cannot be implemented, and no further system switching or energization control is performed.
(18) Step S218
Thereafter, the same state continues until time 182 is reached.
(19) Step S219
At time 183, the system switching control unit 10 recognizes that the difference in accumulated usage time between the system control unit 11 and the system control unit 13 has reached 50, and determines that the next switching is necessary.
(20) Step S220
However, since the difference in accumulated usage time has reached 50 in all the system control units 11 to 13 at this time, it is determined that adjustment of the accumulated usage time is unnecessary. Further, since there is no change in the load demand, it is determined that the current state is acceptable, and the system switching and energization control are not performed.
(21) Step S221
At time 184, the system switching control unit 10 has no change in the load demand and that the accumulated usage time has reached 50 between the system control units, so that no further treatment can be performed. Therefore, no further system switching or energization control is performed.

  As described above, in this embodiment, by performing system switching according to load demand, it is possible to obtain an effect of securing a difference in accumulated usage time for a certain time or more while maintaining a multiplexing configuration that requires immediacy.

  It should be noted that the embodiments of the present invention can be implemented in combination.

  The present invention records the usage status of the components of each multiplexed system of a device having a redundant configuration, and rests unused systems so that the accumulated usage time of each multiplexed system is almost the same period. By selecting the system to be used so that the upper limit value for maintenance is not exceeded, the situation where all the systems fail simultaneously is avoided.

  In particular, a field that is effective as an object of the present invention is control of a configuration that includes parts that need to be replaced regularly because of failure due to aging such as a light emitting element or a movable part.

FIG. 1 is a block diagram illustrating a configuration example of a multiple configuration control apparatus according to the first embodiment. FIG. 2 is a diagram illustrating a state change along the time series in the first embodiment. FIG. 3 is a flowchart showing the operation in the first embodiment. FIG. 4 is a block diagram illustrating a configuration example of the multiple configuration control apparatus according to the second embodiment. FIG. 5 is a diagram illustrating a state change along a time series in the second embodiment. FIG. 6 is a flowchart showing the operation in the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... System switching control part 101 ... System switching information judgment part 102 ... Counter system control communication part 103 ... System switching information holding part 11, 12, 13 ... System control part 111, 121, 131 ... Power supply control part 112, 122, 132 ... Information management unit 113, 123, 133 ... Information holding unit

Claims (24)

A system control means for adding the accumulated usage time of each of the systems that are energized among the plurality of multiplexed systems of three or more, and holding the accumulated usage time of each of the plurality of systems;
If the accumulated usage time of each of the plurality of systems is acquired and the difference in the accumulated usage time of each of the plurality of systems is not secured for a certain period of time, system switching and energization suppression for the plurality of systems is performed as necessary. System switching control means for setting at least one of the plurality of systems as an active system, the other system as a standby system, and energizing at least one of the standby systems. A multi-configuration control apparatus.   The multiple configuration control apparatus according to claim 1,
  In the initial state, the system switching control means is in a state where all the systems of the plurality of systems are energized regardless of the active system and the standby system, acquires the accumulated usage time of each of the plurality of systems, When it is determined that the active system needs to be switched based on the accumulated usage time of the system, switch between one of the active systems and one of the standby systems, and de-energize the specified system among the standby systems If it is determined that it is necessary, the energization of the predetermined system is suppressed,
  In the initial state, the system control means is in a state where all the systems of the plurality of systems are energized, and therefore adds up the accumulated usage time of all the systems of the plurality of systems.
  Multiple configuration controller.   The multiple configuration control apparatus according to claim 1 or 2,
  When the system switching control unit recognizes that a failure has occurred in any of the operating systems, it can switch any of the standby systems to the operating system, start energization, and wait for the system in which the failure has occurred. The system can be switched to a system and energization is suppressed, and the system in which the failure occurs is excluded when determining whether a difference in accumulated usage time of each of the plurality of systems is secured for a certain period of time.
  Multiple configuration controller. The multiple configuration control apparatus according to claim 3, wherein
The system switching control means controls a plurality of systems such that an operating system exists more than the load demand in the plurality of systems. The multiple configuration control apparatus according to claim 4, wherein
The system switching control unit, among the plurality of systems, the first system及beauty second system is the active system, if the third system is the standby system in a state of energized, the load demand 2, the first system, the second system, and the third system, even if the difference in the accumulated usage time of each of the first system, the second system, and the third system is not secured for a certain period of time, The system and the third system are continued without suppressing energization, and when the load demand becomes 1, the first system is switched to the standby system, and the energization of the third system is suppressed, A multi-configuration control apparatus that suppresses energization of the first system and energizes the third system when a difference between the accumulated usage times of the first system and the third system is ensured for a certain time. The multiple configuration control apparatus according to claim 5, wherein
When the energization of each of the first system, the second system, and the third system is continued without being suppressed, the system control means, the first system, the second system, And when the third system is de-energized, the cumulative use time of each of the first system and the second system is added. When the energization of the first system is inhibited, the multiple configuration control device adds the accumulated usage time of each of the second system and the third system. The multiple configuration control apparatus according to any one of claims 1 to 6,
The system control means includes
In accordance with an instruction from the system switching control means, power supply control means for controlling energization of each of the plurality of systems,
Information holding means for holding the accumulated usage time of each of the plurality of systems;
It is responsible for adding and managing the accumulated usage time of each of the plurality of systems, and when the power control means permits energization, adds the accumulated usage time acquired from the information holding means, and updates the accumulated usage time An information management means for instructing the information holding means to hold the information. The multiple configuration control apparatus according to any one of claims 1 to 7,
The system switching control means includes
Based on information of each of the plurality of systems, system switching information determination means for determining the selection of a system to be used and the presence or absence of energization of an unused system;
Communication with the system control means and instructions for the presence or absence of energization, and counter system control communication means for collecting the accumulated usage time and the presence or absence of energization of each of the plurality of systems at regular intervals;
A multiplex configuration control device comprising individual identification information of each of the plurality of systems, a cumulative usage time of each of the plurality of systems, and system switching information holding means for holding presence / absence of energization of each of the plurality of systems. Adding the accumulated usage time of each of the systems that are energized among the plurality of multiplexed systems of three or more, and holding the accumulated usage time of each of the plurality of systems;
If the accumulated usage time of each of the plurality of systems is acquired and the difference in the accumulated usage time of each of the plurality of systems is not secured for a certain period of time, system switching and energization suppression for the plurality of systems is performed as necessary. And at least one of the plurality of systems as an active system, the other system as a standby system, and at least one of the standby systems being energized. Control method.   The multiple configuration control method according to claim 9, wherein
  In the initial state, regardless of whether it is an active system or a standby system, the step of energizing all the systems of the plurality of systems,
  In an initial state, since all the systems of the plurality of systems are in a state of being energized, the step of adding the cumulative usage time of all the systems of the plurality of systems,
  Obtaining a cumulative usage time for each of the plurality of systems;
  When it is determined that switching of the active system is necessary based on the accumulated usage time of each system, the step of switching between any of the active systems and any of the standby systems,
  A step of inhibiting energization of the predetermined system when it is determined that energization of the predetermined system of the standby system needs to be inhibited;
Further includes
  Multiple configuration control method.   The multiple configuration control method according to claim 9 or 10,
  When recognizing the occurrence of a failure in any of the active systems, switching any of the standby systems to the active system and starting energization;
  A step of switching a failed system to a standby system and suppressing energization;
  Excluding the system in which the failure has occurred when determining whether or not the difference in accumulated usage time of each of the plurality of systems is secured for a certain period of time;
Further includes
  Multiple configuration control method. The multiple configuration control method according to claim 11, comprising:
The multiple configuration control method, further comprising the step of controlling the active system so as to be present above the load demand in the plurality of systems. The multiple configuration control method according to claim 12, comprising:
Among the plurality of systems, a first system及beauty second system is the active system, if the third system is the standby system in a state of energized, if the load demand is a 2, the second The first system, the second system, and the third system, even if the difference in accumulated usage time of each of the first system, the second system, and the third system is not secured for a certain period of time. A step of continuing without energizing each of the systems;
If the load demand becomes 1, the step of switching the first system to a standby system and de-energizing the third system;
A step of suppressing energization of the first system and energizing the third system when a difference between the accumulated usage times of the first system and the third system is ensured for a certain period of time. Including multiple configuration control method. The multiple configuration control method according to claim 13, wherein
When energization of each of the first system, the second system, and the third system is continued without being suppressed, the first system, the second system, and the third system Adding the accumulated usage time of each of
When energization of the third system is inhibited, adding the accumulated usage time of each of the first system and the second system;
A step of adding the accumulated usage time of each of the second system and the third system when energization of the first system is inhibited. The multiple configuration control method according to any one of claims 9 to 14,
Controlling the energization of each of the plurality of systems;
Wherein when a plurality of each of the energization of the system is allowed adds the cumulative use time held, further multiplexing configuration control method comprising the <br/> the step of holding the cumulative usage time of the updated. The multiple configuration control method according to any one of claims 9 to 15,
Based on the information of each of the plurality of systems, a step of determining whether to select a system to be used and whether an unused system is energized;
Instructing the presence or absence of communication and energization, and collecting the accumulated usage time and the presence or absence of energization of each of the plurality of systems at regular intervals;
And a step of holding the individual identification information of each of the plurality of systems, the accumulated usage time of each of the plurality of systems, and the presence / absence of energization of each of the plurality of systems. Adding the accumulated usage time of each of the systems that are energized among the plurality of multiplexed systems of three or more, and holding the accumulated usage time of each of the plurality of systems;
If the accumulated usage time of each of the plurality of systems is acquired and the difference in the accumulated usage time of each of the plurality of systems is not secured for a certain period of time, system switching and energization suppression for the plurality of systems is performed as necessary. And executing at least one of the plurality of systems as an active system, another system as a standby system, and setting at least one of the standby systems to a state of energization. Multiple configuration control program for   A multiple configuration control program according to claim 17,
  In the initial state, regardless of whether it is an active system or a standby system, the step of energizing all the systems of the plurality of systems,
  In an initial state, since all the systems of the plurality of systems are in a state of being energized, the step of adding the cumulative usage time of all the systems of the plurality of systems,
  Obtaining a cumulative usage time for each of the plurality of systems;
  When it is determined that switching of the active system is necessary based on the accumulated usage time of each system, the step of switching between any of the active systems and any of the standby systems,
  A step of inhibiting energization of the predetermined system when it is determined that energization of the predetermined system of the standby system needs to be inhibited;
To run the computer further
  Multiple configuration control program.   The multiple configuration control program according to claim 17 or 18,
  When recognizing the occurrence of a failure in any of the active systems, switching any of the standby systems to the active system and starting energization;
  A step of switching a failed system to a standby system and suppressing energization;
  Excluding the system in which the failure has occurred when determining whether or not the difference in accumulated usage time of each of the plurality of systems is secured for a certain period of time;
To run the computer further
  Multiple configuration control program. The multiple configuration control program according to claim 19,
A multiplex configuration control program for causing a computer to further execute a step of controlling an active system so as to exist more than a load demand in the plurality of systems. The multiple configuration control program according to claim 20,
Among the plurality of systems, a first system及beauty second system is the active system, if the third system is the standby system in a state of energized, if the load demand is a 2, the second The first system, the second system, and the third system, even if the difference in accumulated usage time of each of the first system, the second system, and the third system is not secured for a certain period of time. A step of continuing without energizing each of the systems;
If the load demand becomes 1, the step of switching the first system to a standby system and de-energizing the third system;
A step of suppressing energization of the first system and energizing the third system when a difference between the accumulated usage times of the first system and the third system is ensured for a certain period of time. Multiple configuration control program to be executed by a computer. The multiple configuration control program according to claim 21,
When energization of each of the first system, the second system, and the third system is continued without being suppressed, the first system, the second system, and the third system Adding the accumulated usage time of each of
When energization of the third system is inhibited, adding the accumulated usage time of each of the first system and the second system;
A multi-configuration control program for causing a computer to further execute a step of adding accumulated usage times of the second system and the third system when energization of the first system is inhibited. A multiplex configuration control program according to any one of claims 17 to 22,
Controlling the energization of each of the plurality of systems;
Wherein when the plurality of each of the energization of the system is allowed to add the accumulated use time held, multi for executing the <br/> step further computer that holds the accumulated use time after update Configuration control program. A multiplex configuration control program according to any one of claims 17 to 23, wherein
Based on the information of each of the plurality of systems, a step of determining whether to select a system to be used and whether an unused system is energized;
Instructing the presence or absence of communication and energization, and collecting the accumulated usage time and the presence or absence of energization of each of the plurality of systems at regular intervals;
A multiple configuration control program for causing a computer to further execute the individual identification information of each of the plurality of systems, the accumulated usage time of each of the plurality of systems, and the step of holding the presence / absence of energization of each of the plurality of systems .

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