阅读说明：本技术 声波传感器质询 (Acoustic wave sensor interrogation ) 是由 S·巴朗德拉斯 J·加西亚 于 2020-03-19 设计创作，主要内容包括：本发明涉及用于质询声波传感器(10)的质询装置(20),包括发送天线(21),其被配置成向声波传感器发送质询射频信号；接收天线(22),其被配置成从声波传感器接收响应射频信号；以及处理单元(24),其被配置成确定响应射频信号的N个连续帧的各帧中的所接收的响应射频信号的同相分量I和正交分量Q,N是大于1的整数,其中N个帧的各帧包括X个采样点；确定所确定的同相分量I和正交分量Q的各对的模量|Y|；基于所确定的模量|Y|确定第一范数M；基于所确定的第一范数M和所确定的模量|Y|确定第一加权函数W；确定所接收的响应射频信号的第N+1帧的同相分量I和正交分量Q,第N+1帧包括所接收的响应射频信号的X个采样点；确定所确定的第N+1帧的同相分量I和正交分量Q的各对的模量|Y|；并将第一加权函数W应用于所确定的第N+1帧中的所接收的响应射频信号的模量|Y|,以获得针对第N+1帧的、所接收的响应射频信号的加权后的模量|Y|w。(The invention relates to an interrogation device (20) for interrogating an acoustic wave sensor (10), comprising a transmitting antenna (21) configured to transmit an interrogation radio-frequency signal to the acoustic wave sensor; a receive antenna (22) configured to receive a response radio frequency signal from the acoustic wave sensor; and a processing unit (24) configured to determine an in-phase component I and a quadrature component Q of the received response radio frequency signal in each of N successive frames of the response radio frequency signal, N being an integer greater than 1, wherein each of the N frames comprises X sample points; determining a modulus | Y | for each pair of the determined in-phase component I and quadrature component Q; determining a first norm M based on the determined modulus | Y |; determining a first weighting function W based on the determined first norm M and the determined modulus Y; determining an in-phase component I and a quadrature component Q of an N +1 th frame of the received response radio frequency signal, the N +1 th frame comprising X sample points of the received response radio frequency signal; determining a modulus | Y | of each pair of the determined in-phase component I and quadrature component Q of the (N + 1) th frame; and applying a first weighting function W to the determined modulus Y of the received response radio frequency signal in the N +1 th frame to obtain a weighted modulus Y W of the received response radio frequency signal for the N +1 th frame.)

1. An interrogation device (20) for interrogating an acoustic wave sensor (10), the interrogation device comprising a transmit antenna (21) configured to transmit (101) an interrogation radio frequency signal to the acoustic wave sensor (10);

a receive antenna (22) configured to receive a responsive radio frequency signal (102) from the acoustic wave sensor (10); and

a processing unit (24) configured to

Determining (103) an in-phase component I and a quadrature component Q of the received response radio frequency signal (102) in each of N consecutive frames of the response radio frequency signal (102), N being an integer larger than 1, wherein each of the N frames comprises X sample points;

determining a modulus | Y | for each pair of the determined in-phase component I and quadrature component Q;

determining (104) a first norm M based on the determined modulus Y;

determining (105) a first weighting function W based on the determined first norm M and the determined modulus Y;

determining an in-phase component I and a quadrature component Q of an N +1 th frame of the received response radio frequency signal, the N +1 th frame comprising X sample points of the received response radio frequency signal (102);

determining a modulus | Y | of each pair of the determined in-phase component I and quadrature component Q of the (N + 1) th frame; and

applying (106) the first weighting function W to the determined modulus Y of the received response radio frequency signal (102) in the N +1 th frame to obtain a weighted modulus Y W of the received response radio frequency signal (102) for the N +1 th frame.

2. An interrogation device (20) for interrogating an acoustic wave sensor (10), the interrogation device comprising:

a transmit antenna (22) configured to transmit (101) an interrogation radio frequency signal to the acoustic wave sensor (10);

a receive antenna (21) configured to receive a responsive radio frequency signal (102) from the acoustic wave sensor (10); and

a processing unit (24) configured to

Determining (103) an in-phase component I and a quadrature component Q of the received response radio frequency signal (102) in each of N consecutive frames of the response radio frequency signal (102), N being an integer larger than 1, wherein each of the N frames comprises X sample points;

determining a first I-norm MI based on the determined in-phase component I;

determining a first Q-norm MQ based on the determined quadrature component Q;

determining a first I-weighting function WI based on the determined first I-norm MI and the determined in-phase component I;

determining a first Q weighting function WQ based on the determined first Q-norm MQ and the determined quadrature component Q;

determining an in-phase component I and a quadrature component Q of an N +1 th frame of the received response radio frequency signal (102), the N +1 th frame comprising X sample points of the received response radio frequency signal (102);

applying a first I weighting function WI to the determined in-phase component I of the received response radio frequency signal (102) in the N +1 th frame to obtain a weighted in-phase component Iw of the received response radio frequency signal (102) for the N +1 th frame; and

applying the first Q weighting function WQ to the determined quadrature component Q of the received response radio frequency signal (102) in the N +1 th frame to obtain a weighted quadrature component Qw of the received response radio frequency signal (102) for the N +1 th frame.

3. The challenge device (20) of claim 1 wherein the processing unit (24) is further configured to:

determining an in-phase component I and a quadrature component Q of the received response radio frequency signal in an N +2 frame of the response radio frequency signal (102), the N +2 frame comprising X sample points of the received response radio frequency signal (102);

determining a modulus | Y | of each pair of the determined in-phase component I and quadrature component Q of the N +2 th frame;

determining a second norm M based on the determined modulus | Y | of the 2 nd to N +1 th frames without using the determined modulus | Y | of the 1 st frame of the N frames;

determining a second weighting function W based on the determined second norm M and the determined modulus | Y | of the 2 nd to N +1 th frames without using the determined modulus | Y | of the 1 st frame of the N frames; and

applying the second weighting function W to the determined modulus Y of the received response radio frequency signal (102) in the N +2 th frame to obtain a weighted modulus Y W of the received response radio frequency signal (102) for the N +2 th frame.

4. The challenge device (20) of claim 2 wherein the processing unit (24) is further configured to:

determining an in-phase component I and a quadrature component Q of the received response radio frequency signal (102) in an N +2 frame of the response radio frequency signal (102), the N +2 frame comprising X sample points of the received response radio frequency signal;

determining a second I-norm MI based on the determined in-phase component I of the 2 nd to N +2 th frames without using the determined in-phase component I of the 1 st frame of the N frames;

determining a second Q-norm MQ based on the determined quadrature component Q of the 2 nd to N +2 th frames without using the determined quadrature component Q of the 1 st frame of the N frames;

determining a second I-weighting function WI based on the determined second I-norm MI and the determined in-phase component I of the 2 nd to N +2 th frames without using the determined in-phase component I of the 1 st frame of the N frames;

determining a second Q-weighting function WQ based on the determined second Q-norm MQ and the determined quadrature component Q of the 2 nd to N +2 nd frames without using the determined quadrature component Q of the 1 st frame of the N frames;

applying the second I weighting function WI to the determined in-phase component I of the received response radio frequency signal (102) in the N +2 th frame to obtain a weighted in-phase component Iw of the received response radio frequency signal (102) for the N +2 th frame; and

applying the second Q weighting function WQ to the determined quadrature component Q of the received response radio frequency signal (102) in the N +2 th frame to obtain a weighted quadrature component Qw of the received response radio frequency signal (102) for the N +2 th frame.

5. The challenge device (20) of claim 1 or 3, wherein the processing unit (24) is configured to determine (104) the first norm M according to the following equation:

wherein, | Y_n(ω_x) L represents the modulus of the in-phase component I and the quadrature component Q for the x-th sampling point and the n-th frame.

6. The challenge device (20) of claim 5, wherein the processing unit (24) is configured to determine (105) the first weighting function according to the following equation:

7. challenge device (20) according to one of claims 1, 3, 5 and 6, wherein the processing unit (24) is further configured to apply a Gaussian density function to the obtained weighted modulus Y | w.

8. The challenge apparatus (20) of claim 2 or 4, wherein the processing unit (24) is configured to determine (104) the first I-norm MI according to the following equation:

wherein, I_n(ω_x) Represents the in-phase component for the x-th sample point and the n-th frame, and determines the first Q-norm MQ according to:

wherein Q is_n(ω_x) Representing the quadrature component for the x sample point and the n frame.

9. Challenge device (20) according to claim 8, wherein the processing unit (24) is configured to determine the first I-weighting function WI according to the following equation:

and determining the first Q weighting function WQ according to the following equation

10. Challenge device (20) according to one of claims 2, 4, 8 and 9, wherein the processing unit (24) is further configured to

A weighted modulus | Y | w of the obtained weighted in-phase component Iw of the received response radio frequency signal (102) for the (N + 1) th frame and the obtained weighted quadrature component Qw of the received response radio frequency signal (102) for the (N + 1) th frame is calculated and a gaussian density function is applied to the calculated weighted modulus | Y | w.

11. Challenge device (20) according to one of the preceding claims, further comprising a filtering unit configured to filter the received response radiofrequency signals (102) before determining the first norm M or the first I-norm MI and the first Q-norm MQ, so as to eliminate frames of the N frames in which the variance or standard deviation of the in-phase component I and the quadrature component Q exhibits a variance or standard deviation exceeding a predetermined variance or standard deviation threshold over the respective entire frame.

12. Challenge device (20) according to claim 11, wherein the filtering unit is configured to dynamically determine the variance or standard deviation or corresponding threshold value by: an initial threshold is determined as a variance or standard deviation of an in-phase component I and a quadrature component Q in a specific frame of the N frames, and if the variance or standard deviation of the in-phase component I and the quadrature component Q in a frame directly following the specific frame is smaller than the variance or standard deviation in the specific frame, the variance or standard deviation of the in-phase component I and the quadrature component Q in a frame directly following the specific frame is determined as the threshold.

13. A system for monitoring environmental parameters, the system comprising:

challenge device (20) according to one of the preceding claims; and

an acoustic wave sensor device (10) communicatively coupled to the interrogation device, wherein the acoustic wave sensor device (10) is specifically a passive surface acoustic wave sensor device and the environmental parameter is specifically a temperature, strain, pressure, or torque of a rotating shaft.