TIME SLOT ALLOCATION DEVICE, TIME SLOT ALLOCATION DEVICE OPERATION METHOD, AND COMPUTER PROGRAM

• Main Authors: NARIMATSU HIROMI, MATSUKAWA SHOJI
• Format: Patent
• Language: English; Japanese
• Published: 19.05.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

PROBLEM TO BE SOLVED: To increase the possibility of communication by securing a sufficient number of time slots in a competition period.SOLUTION: A time slot allocation device calculates a lower limit value Nof the number of time slots N in a competition period on the basis of a reception frequency of data from each slave unit, and determines whether the number of time slots N is equal to or more than the lower limit value N(S15). If the number of time slots N is less than the lower limit value N(S15: NO), the device increases the number of time slots N so that the number of time slots N is equal to or more than the lower limit value N(S31).SELECTED DRAWING: Figure 4 【課題】競争期間に十分な数のタイムスロットを確保して、通信の可能性を高める。【解決手段】競争期間内のタイムスロットの数（Ｎという）の下限値Ｎｍｉｎを、各子機からのデータの受信頻度に基づいて計算し、タイムスロットの数Ｎが下限値Ｎｍｉｎ以上か否かを判定する（Ｓ１５）。タイムスロットの数Ｎが下限値Ｎｍｉｎ未満なら（Ｓ１５：ＮＯ）、タイムスロットの数Ｎが下限値Ｎｍｉｎ以上となるようにタイムスロットの数Ｎを増やす（Ｓ３１）。【選択図】図４