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US 2019/0079485 A1Published application
Unit and control system
AssigneeMitsubishi Electric Corporation
InventorAkihiro HAMAGUCHI
Life of this patent
Estimating the term…
Abstract
A unit is connected to both devices to be controlled and the other unit. The unit includes a control unit connected to the devices to be controlled, and a shared memory to be capable of storing therein information. The control unit allocates control data related to the devices to be controlled to the shared memory of its own unit and the shared memory of the other unit so as to be stored respectively in the shared memories.
Claims16
1:
- A unit connected to both another unit and one or more control-target devices, the unit comprising:
- a controller connected to the control-target devices;
- and
- a first memory to be capable of storing therein information, wherein
- the controller divides control data related to the control-target devices into a plurality of pieces, and stores divided pieces of the control data respectively in the first memory and a second memory of the another unit,
- the first memory and the reread memory share a storage area, and
- in a state of being capable of transmitting and receiving the control data between the unit and the another unit, and a controller unit connected to the unit and the another unit, the first memory and the second memory are used in a ring buffer configuration, and at a timing when a cause of interrupt in a given cycle has occurred before an available area of the first memory and the second memory becomes full, the control data stored in the first memory and the second memory is transferred to the controller unit.
4 more elements
2:
- The unit according to claim 1, wherein the unit is connected to the another unit via a network.
3:
- The unit according to claim 1, wherein
- the controller transmits a control signal for controlling the control-target devices as the control data to the control-target devices on a basis of a signal received from the controller unit.
4:
- A control system comprising a plurality of units, each of which is connected to one or more control-target devices and includes a memory, where the units are connected to each other, wherein
- a unit in the units includes a controller connected to the control-target devices connected to the unit,
- the controller in the unit divides control data, related to the control-target devices connected to the unit, into a plurality of pieces, and stores divided pieces of the control data respectively in the memory of the unit and the memory of another unit in the units,
- the memory of the unit and the memory of the another unit share a storage area, and
- in a state of being capable of transmitting and receiving the control data between the units and a controller unit connected to the units, in the control system, the memory of the unit and the memory of the another unit are used in a ring buffer configuration, and at a timing when a cause of interrupt in a given cycle has occurred before an available area of the memory of the unit and the memory of the another unit becomes full, the control data stored in the memory of the unit and the memory of the another unit is transferred to the controller unit.
2 more elements
5:
- The control system according to claim 4, wherein
- the controller transmits a control signal for controlling the control-target devices as the control data to the control-target devices on a basis of a signal received from the controller unit.
6:
- A control system comprising a plurality of units, each of which is connected to one or more control-target devices and includes a memory, where the units are connected to each other, wherein
- a unit in the units includes a controller connected to the control-target devices connected to the unit,
- the controller in the unit allocates control data, related to the control-target devices connected to the unit, to the memory of the unit and the memory of another unit in the units so as to be stored respectively in the memory of the unit and the memory of the another unit,
- the unit includes a priority setter to be set a priority for storing the control data related to each control-target device in the entire control system, and
- the controller stores the control data related to each control-target device in the memory in accordance with the priority set in the priority setter.
2 more elements
7:
- A control system comprising a plurality of units, each of which is connected to one or more control-target devices and includes a memory, where the units are connected to each other, wherein
- a unit in the units includes a controller connected to the control-target devices connected to the unit,
- the controller in the unit allocated control data, related to the control-target devices connected to the unit, to the memory of the unit and the memory of another unit in the units so as to be stored respectively in the memory of the unit and the memory of the another unit,
- the memory in the unit includes a waveform memory to store therein waveform data indicating a regular operation of the control-target devices connected to the unit,
- the unit includes a trigger condition setter to determine whether the control data related to the control-target devices connected to the unit satisfies a predetermined trigger condition for the waveform data stored in the waveform memory, and
- the controller stores the control data, determined by the trigger condition setter as having satisfied the trigger condition, in the memory.
3 more elements
8:
- The control system according to claim 7, wherein the predetermined trigger condition is that a difference between an amplitude of the waveform data and an amplitude of the control data is equal to or smaller than a predetermined value.
9:
- The control system according to claim 7, wherein the predetermined trigger condition is that a difference between a wavelength of the waveform data and a wavelength of the control data is equal to or smaller than a predetermined value.
10:
- The unit according to claim 2, wherein
- the controller transmits a control signal for controlling the control-target devices as the control data to the control-target devices on a basis of a signal received from the controller unit.
11:
- The control system according to claim 7, further comprising a controller unit connected to the units, wherein
- the controller transmits a control signal for controlling the control-target devices as the control data to the control-target devices on a basis of a signal received from the controller unit.
12:
- The control system according to claim 7, wherein
- the unit includes a priority setter to be set a priority for storing the control data related to each control-target device in the entire control system, and
- the controller stores the control data related to each control-target device in the memory in accordance with the priority set in the priority setter.
13:
- The control system according to claim 11, wherein the predetermined trigger condition is that a difference between an amplitude of the waveform data and an amplitude of the control data is equal to or smaller than a predetermined value.
14:
- The control system according to claim 12, wherein the predetermined trigger condition is that a difference between an amplitude of the waveform data and an amplitude of the control data is equal to or smaller than a predetermined value.
15:
- The control system according to claim 11, wherein the predetermined trigger condition is that a difference between a wavelength of the waveform data and a wavelength of the control data is equal to or smaller than a predetermined value.
16:
- The control system according to claim 12, wherein the predetermined trigger condition is that a difference between a wavelength of the waveform data and a wavelength of the control data is equal to or smaller than a predetermined value.