Title:
CONTROL DEVICE, CONTROL SYSTEM, AND MESSAGE DELAY DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/042615
Kind Code:
A1
Abstract:
This control device (50), which is a second control device in a control system in which a first control device and the second control device perform the transmissions/receptions of messages via a communication device, comprises: a communication unit (51) that receives a first message, i.e., a message transmitted from the first control device, via the communication device and that transmits a second message, i.e., a message directed to the first control device via the communication device; a delay detection unit (52) that detects a delay of the first message by using first time information attached to the first message and related to the transmission of the first message using a first expiration time of the first control device and further by using second time information related to the reception of the first message, or the transmission of the second message, using a second expiration time of the control device different from the first expiration time; and a time measurement unit (53) that measures a time by using the second expiration time.
Inventors:
ASUKA MASASHI (JP)
ITAGAKI SACHI (JP)
TOKUMARU MAKOTO (JP)
ITAGAKI SACHI (JP)
TOKUMARU MAKOTO (JP)
Application Number:
PCT/JP2022/031729
Publication Date:
February 29, 2024
Filing Date:
August 23, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04W24/02
Domestic Patent References:
| WO2020095413A1 | 2020-05-14 |
Foreign References:
| JP2016527812A | 2016-09-08 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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