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我想分析一系列来自Galaxy Nexus的Android传感器数据，并且我正在运行一些奇怪的模式。例如，对于磁场传感器，我得到8的重复值，屏幕方向传感器的随机值为255。这些值在我阅读的文档中似乎没有任何特别的意义，但它们反复弹出。任何人有任何想法为什么？安卓随机传感器值报告
我在传感器数据输出中加入了一个样本，以防万一任何人想要它，0表示在收听时间段（1分钟）内没有返回数据。每行5分钟不同：
MPU6500 Acceleration Sensor AK09911C Magnetic field Sensor AK09911C Magnetic Sensor UnCalibrated MPU6500 Gyroscope Sensor MPU6500 Uncalibrated Gyroscope Sensor Barometer Sensor TMG399X Proximity Sensor TMG399X RGB Sensor MPL Rotation Vector MPL Game Rotation Vector SAMSUNG Step Detector Sensor SAMSUNG Step Counter Sensor SAMSUNG Significant Motion Sensor MAX86900 Screen Orientation Sensor HRM Sensor Orientation Sensor Gravity Sensor Linear Acceleration Sensor
-0.7918822 -1.44 8 -0.0010652645 0 0 0.027657 -0.00831 107.56043 0 0 255 0 0 -0.79049826 0.005798638 344.4021 -0.7916513 0.012937188
-1.6178818 18.66 -1.14 8 8 0 0.028444 -0.008315 0 0 0 255 0 0 -1.6365771 0.04024315 110.17886 -1.6392937 0.029791594
-1.638831 8 8 -2.66E-04 0 0.047552 -0.03045 0 0 0 255 0 0 0 -1.6823589 0.04951334 352.47757 -1.6795416 0.03173232
-1.6753427 -1.08 8 -0.0026631611 0 0.048844 -0.030235 0 1 0 255 0 0 0 -1.7105712 0.07293725 103.25511 -1.7080178 0.043449044
-1.721431 8 8 0.0013315806 0.0013315806 0.044273 -0.03007 0 0 0 255 0 0 0 -1.7184123 0.013740659 358.64462 -1.7213204 0.008867621
-1.7154455 18.72 -1.08 8 0.046393 -0.030042 0 0 0 255 0 0 0 0 -1.7471539 0.020335913 97.08981 -1.7468109 0.036153793
-1.8076223 -1.08 8 -0.0034621095 -0.0034621095 0 0.032184 -0.052209 0 0 0 255 0 0 -1.8572613 0.07178533 9.031282 -1.849128 0.043301344
-1.7962499 -1.08 8 8 -0.051598 -0.050319 1 0 0 255 0 0 0 0 -1.8097965 0.018933535 98.16796 -1.8121501 0.0069220066
-1.7830818 14.4 8 8 0 0 0.031865 -0.051793 0 0 0 0 0 255 -1.8501818 0.051537752 6.3113422 -1.8480959 0.033290982
-1.8968062 -1.02 8 8 0 0.035205 -0.051669 0 0 0 0 255 0 0 -1.9285302 0.06584132 9.900935 -1.9213988 0.02040255
-1.846528 15.06 8 8 0 0 0 88.72001 -0.0386 -1.8738624 255 0 0 0 -1.8782147 0.009540319 13.564674 -1.8787019 0.023794174
-1.2557588 18.6 8 8 0.002130529 -0.056822 -0.059393 0 0 255 0 0 1 0 -1.2829624 0.013437033 99.33356 -1.2816399 0.024684072
-1.2449849 18.6 8 0.014114754 0 0 0 85.962204 0.003289 -0.057907 -1.2985611 0 0 255 -1.2931483 0.042776465 14.364091 -1.2938662 0.037508845
-1.2443863 18.54 -1.26 8 8 0 0 -0.054567 -0.056251 2.5835018 0 0 255 0 -1.2474166 -0.011933446 93.84088 -1.2518827 -0.0062702894
-1.1426327 18.72 8 8 0 -0.052494 -0.056559 1 0 0 255 0 0 0 -1.1527904 0.017340302 6.746513 -1.1546664 0.01502645
-1.1492168 18.6 8 8 0.002396845 0 -0.048156 -0.04867 0 0 255 0 0 0 -1.1757433 0.03131497 99.13985 -1.1777196 0.019524574
-1.4927847 8 -2.66E-04 0 0 0.031505 -0.028662 0 0 255 0 0 1 0 -1.5062454 0.024833083 7.337884 -1.5073864 0.029565454
-1.5041572 18.78 0.005060006 8 8 0 0 -0.023542 -0.027803 5.926271 0 0 255 0 -1.5276097 0.030635118 91.725334 -1.527528 0.038933158
-1.5143325 -1.08 8 8 5.33E-04 0 0 0 0 -0.027872 0.04729855 85.258766 -1.529908 0 255 -1.5293596 0.009041548 -1.5280322 0.033451796
-1.4993688 14.52 8 8 0 -0.023884 -0.026326 0 0 255 0 0 0 0 -1.5211747 0.03198123 93.13916 -1.526189 0.013652086
-0.9816227 18.48 -1.32 8 8 0 0 0 -0.020971 -0.0265 -1.526189 0.5559387 7.78904 255 -1.0139774 0.030559063 85.279945 -1.0111967 0.031968236
-0.9756372 18.6 -1.2 8 8 0 0 -0.006156 -0.011322 0 0 255 0 1 -0.9895226 -0.0034725666 11.263685 -0.9939272 0.0069175363
-0.9923966 18.54 8 8 -0.0037284256 0 -0.010102 -0.010804 0 0 0 0 255 0 -1.011731 0.015144587 95.325294 -1.0129408 0.02712822
-0.7445967 0.12 8 8 0 -0.007972 -0.010841 0 0 255 0 0 0 0 -0.76289475 0.030269027 99.85943 -0.7639039 0.028285444
-0.18794483 19.62 -0.18 8 0 0 0.029863 0.031101 0 0 255 0 0 0 -0.19251534 0.0069647133 22.254642 -0.19720303 0.021827757