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Control apparatus

A technology for control devices and control units, applied to multi-program devices, program control design, instruments, etc., can solve problems such as increased processing load

Inactive Publication Date: 2018-03-23
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, conventionally, the processing load when sending and receiving data via the shared memory has increased.

Method used

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  • Control apparatus
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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0016] First, refer to figure 1 The configuration of the control device 100 of the first embodiment will be described. The control device 100 is a controller used in the field of instrumentation, the field of electrical control, the field of electric power, and the like.

[0017] Such as figure 1 As shown, the control device 100 includes a main board 10 , a master device 20 , and a plurality of slave devices 30 . The master device 20 and the slave device 30 are connected to the main board 10 . The master device 20 is an example of a "first device", and the slave device 30 is an example of a "second device". exist figure 1 Although the example in which three slave devices 30 are provided is shown in , the number of slave devices 30 may be four or more or two or less.

[0018] The motherboard 10 includes a shared memory 11 and an arbitration circuit 12 . The shared memory 11 is configured to be shared by the master device 20 and the slave device 30 . That is, the master d...

no. 2 approach

[0040] Next, refer to Figure 5 The configuration of the control device 100a of the second embodiment will be described. In addition, the same code|symbol is assigned to the same component as 1st Embodiment, and description is abbreviate|omitted.

[0041] Such as Figure 5 As shown, like the control device 100 of the first embodiment, the control device 100a of the second embodiment includes a main board 10a, a master device 20a, and a plurality of slave devices 30a. The master device 20a is an example of a "first device", and the slave device 30a is an example of a "second device". Figure 5 An example in which three slave devices 30a are provided is shown, but the number of slave devices 30a may be four or more or two or less.

[0042] The main board 10a of the second embodiment includes a shared memory 11, an arbitration circuit 12, and a monitoring circuit 13a. The monitoring circuit 13a is an example of a "first circuit". In addition, the host device 20 a of the seco...

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PUM

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Abstract

A control apparatus according to an embodiment is provided with: a first apparatus including a first control unit; a second apparatus including a second control unit; a shared memory; and a first circuit. The shared memory is configured to be shared by the first and second apparatuses. The first circuit is configured to acquire, when the second control unit accesses the shared memory, informationabout the access, from the second apparatus, and to output, to the first apparatus, the acquired information about the access.

Description

technical field [0001] Embodiments of the present invention relate to a control device. Background technique [0002] Conventionally, a control device including a processor that executes a predetermined task is known. In such a control device, a plurality of processors may be provided. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2012-150661 [0004] In the aforementioned conventional control device provided with a plurality of processors, each processor may transmit and receive data via one shared memory. In this case, in order to obtain data from other processors, in addition to the preset tasks, each processor needs to periodically repeatedly access the shared memory to check whether the shared memory has been written into the data from other processors. Check processing, etc. Therefore, conventionally, the processing load when transmitting and receiving data via the shared memory increases. Contents of the invention [0005] A control device according...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F15/167G06F9/54G06F11/07
CPCG06F11/0772G06F11/0751G06F15/167G06F9/544G06F9/52G06F11/0721G06F9/54
Inventor 百武博幸弘田达夫
Owner KK TOSHIBA