Fuzzy Systems Part 10

Tham khảo tài liệu 'fuzzy systems part 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | The Algorithms of the Body Signature Identification 171 A 1 a2 a3 a t 0 a 4 5 a6 a7 a8 a9 0 a10 a11 0 a12 _ a13 0 a14 _ 1 B b1 0 b2 b3 b4 0 b5 0 b6 0 b7 b8 b9 b10 b11 b12 b13 b14 2 sensors values represented in Fig. 1a. The The elements of matrix A corresponds of the matrix have the 3 columns and 6 rows. The number of columns corresponds to the maximum number of sensors placed on the length. The null elements indicate the absence of the sensors. Matrix B has 2 columns and 9 rows. Its elements correspond of the sensors value placed according to Fig 1b. The maximum number of sensors placed on the length is 2. The sampling period of acquisition is 2s. Using the values acquired from the sensors and a simple algorithm one can know the hour of presence or absence of subject on the bed the period of time spend in bed the movement period and the body position Table 1. . Data The hour of body movement The sensor value variation maxim The part of body movement The movement period The daily period Hour absence on the bed 12 52 0 572V All 10s Aftern oon 13 55 18 50 1V All 1h Night 19 30 19 40 1V All 10min Night - 19 40 20 12 0 22 Right leg 5s Night - 19 40 20 50 0 57V All 5s Night 20 55 21 30 1 2V All 10s Night - Table 1. The table diagram of the subject behaviour on the bed 172 Fuzzy Systems The sensor value variation Table 1 represents the maximum variation of the data between all the sensors which results after the body movement. The localisation of the body movement is achieved. The data are analysed during a period of 24 hours and this are divided in the small periods corresponding to the day and the night. The period of 24 hours is a sum of the absence Tabs and presence Tpres periods of the subject on the bed. 24h Tabs Tpres 3 The period of rest of the subject on the bed can be passive or active and this results from the movement period and the amplitude. The system might be integrated in the intelligent .