CONTROL DEVICE, WIRELESS COMMUNICATION TERMINAL, AND POSITION ESTIMATION SYSTEM

• Main Authors: NISHIYASU KAZUMA, TAKAHASHI HIROSHI, SHIRAKATA NAGANORI, MORITA JUNICHI
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2019
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

This control device includes a communication unit, storage unit, and position estimation unit. The position estimation unit updates the position of a first wireless communication terminal using the difference between a first reception quality and third reception quality and the difference between a second reception quality and fourth reception quality. A first response signal includes at least thefirst reception quality, which is calculated when a first wireless communication terminal receives a first control signal, and the second reception quality, which is for a second response signal andis calculated when the first wireless communication terminal receives the second response signal. A third response signal includes at least the third reception quality, which is for a third control signal, and the fourth reception quality, which is for a fourth response signal and is calculated when the first wireless communication terminal receives the fourth response signal. 控制装置包含通信单元、存储单元、位置估计单元，位置估计单元用第1接收质量和第3接收质量之差及