公开(公告)号：US09024727B1

公开(公告)日：2015-05-05

申请号：US13901981

申请日：2013-05-24

Applicant: Google Inc.

Inventor： Brian Patrick Otis ,  Nathan Pletcher ,  Daniel Yeager

IPC: G08C19/16 ,  H04Q5/22 ,  G08B13/14 ,  H04B5/00 ,  H04M1/00 ,  G01S3/02 ,  G06K7/10 ,  H01H3/16 ,  G01K5/72 ,  H01Q3/36 ,  G08B25/10

CPC classification number: H01Q3/36 ,  G01K1/024 ,  G01K5/72 ,  G01K7/32 ,  G01K2217/00 ,  G06K19/0717 ,  G06K19/0723 ,  G08B25/10 ,  H01H3/166 ,  H01Q1/2216 ,  H01Q7/00

Abstract: Methods and systems for utilizing oscillator frequency divider settings as a temperature sensor are described herein. An example method may involve a reader device transmitting an RF signal to a tag device that includes an electronic oscillator configured to generate an oscillator signal with an oscillator frequency and a frequency adjuster configured to adjust the oscillator frequency with a frequency adjustment factor to provide a resulting frequency, the oscillator frequency being dependent on a temperature of the tag device and the resulting frequency being based on a reference frequency provided by the RF signal. The method may also involve the reader device receiving data from the tag device, the data being indicative of the oscillator frequency. The method may further involve the reader device determining an estimate of the temperature of the tag device based on at least the received data and a predetermined relationship between temperature and oscillator frequency.

Abstract translation: 本文描述了利用振荡器分频器设置作为温度传感器的方法和系统。 示例性方法可以涉及将RFID信号发送到标签设备的读取器设备，该标签设备包括被配置为产生具有振荡器频率的振荡器信号的电子振荡器和被配置为利用频率调整因子调整振荡器频率的频率调整器，以提供产生的 频率，振荡器频率取决于标签装置的温度，所得到的频率基于由RF信号提供的参考频率。 该方法还可以涉及读取器设备从标签设备接收数据，该数据指示振荡器频率。 该方法还可以包括读取器装置至少基于所接收的数据和温度与振荡器频率之间的预定关系来确定标签装置的温度估计。