DATA COMMUNICATION METHOD

DATA COMMUNICATION METHOD

PROBLEM TO BE SOLVED: To provide a narrow area data communication method capable of performing high reliability data communications within limited communication time and dealing with the next communication by stopping transmission processing when transmission is not completed even after the lapse of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IWASAKI MASAAKI, SAKAI YASUO, MATSUZAKA SHIGERU, DEGAWA SADAO
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a narrow area data communication method capable of performing high reliability data communications within limited communication time and dealing with the next communication by stopping transmission processing when transmission is not completed even after the lapse of a fixed time from the start of that transmission processing. SOLUTION: A UDP is used as a transport protocol (a), communication data are transmitted after being divided into optimal packet length (b) and the response data of a plurality of continuous packets are simultaneously monitored by a single timer (c). After the lapse of set time of the timer, the non-received packet of no reply is sent again (d) and on the side of reception, on the other hand, the response data of the received right packet are returned (e).