COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION SYSTEM

• Main Authors: MATSUZAKI KOKI, NAKAHARA MASAMORI, KONO MASAJI
• Format: Patent
• Language: English; Japanese
• Published: 23.03.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

To provide a communication device, a communication method, and a communication system that make it difficult to increase a communication load between a center device and the communication device.SOLUTION: A communication device 1 includes a communication unit 11 and a control unit 15. The control unit 15 transmits a first telegraphic message D1 to a center device 2, controls the communication unit 11 so as to receive a first response R1 from the center device 2, and acquires first response reception time, which is the time when the communication unit 11 receives the first response R1 from the center device 2. The control unit 15 transmits a second telegraphic message D2 to the center device 2 after the acquisition of the first response reception time, controls the communication unit 11 so as to receive a second response R2 from the center device 2, and acquires second response reception time, which is the time when the communication unit 11 receives the second response R2 from the center device 2. The control unit 15 calculates a transmission interval ΔT, which is a time interval during which the center device 2 can transmit a response R to the communication unit 11 based on the first response reception time and the second response reception time.SELECTED DRAWING: Figure 8 【課題】センタ装置と通信装置との間の通信負荷が増大し難い通信装置、通信方法、及び通信システムを提供する。【解決手段】通信装置１は、通信部１１と、制御部１５とを備える。制御部１５は、センタ装置２へ第１電文Ｄ１を送信し、センタ装置２から第１応答Ｒ１を受信するように通信部１１を制御して、通信部１１がセンタ装置２から第１応答Ｒ１を受信した時刻である第１応答受信時刻を取得する。制御部１５は、第１応答受信時刻の取得後、センタ装置２へ第２電文Ｄ２を送信し、センタ装置２から第２応答Ｒ２を受信するように通信部１１を制御して、通信部１１がセンタ装置２から第２応答Ｒ２を受信した時刻である第２応答受信時刻を取得する。制御部１５は、第１応答受信時刻及び第２応答受信時刻に基づいて、センタ装置２が通信部１１に応答Ｒを送信可能な時間の間隔である送信間隔ΔＴを算出する。【選択図】図８