CN203661075U - Non-contact human body surface micro-motion information detection device - Google Patents

本实用新型公开了一种非接触式的人体体表微动信息检测装置，包括：天线、多普勒雷达单元，数据采集与处理单元及无线传输单元；所述多普勒雷达单元用于将产生特定频率的射频信号发送至所述天线，所述天线在接收到所述射频信号后，将所述射频信号发射至人体体表产生发射信号，所述天线将所述发射信号传送至所述多普勒雷达单元进行放大后，所述多普勒雷达单元将放大后的发射信号传输至所述数据采集与处理单元进行处理后获得人体体表微动信息，无线传输单元将所述人体体表微动信息经无线传输方式传输出去。本实用新型提供的非接触式的人体体表微动信息检测装置，不需要接触人体就可以检测人体的体表微动信息，灵活有效，灵活性高。

The utility model discloses a non-contact human body surface micro-movement information detection device, comprising: an antenna, a Doppler radar unit, a data acquisition and processing unit and a wireless transmission unit; the Doppler radar unit is used to Generate a radio frequency signal of a specific frequency and send it to the antenna. After receiving the radio frequency signal, the antenna transmits the radio frequency signal to the body surface of the human body to generate a transmission signal, and the antenna transmits the transmission signal to the After the Doppler radar unit is amplified, the Doppler radar unit transmits the amplified transmission signal to the data acquisition and processing unit for processing to obtain human body surface micro-movement information, and the wireless transmission unit transmits the human body surface The table micro-movement information is transmitted through wireless transmission. The non-contact human body surface micro-movement information detection device provided by the utility model can detect the human body surface micro-motion information without contacting the human body, which is flexible, effective and high in flexibility.

非接触式的人体体表微动信息检测装置Non-contact human body surface micro-movement information detection device

技术领域 technical field

本实用新型涉及医学行业生理信号检测技术领域，特别涉及一种非接触式的人体体表微动信息检测装置。  The utility model relates to the technical field of physiological signal detection in the medical industry, in particular to a non-contact human body surface micro-movement information detection device. the

背景技术 Background technique

实时监测人体体表微动信息在很多场合有重要意义，如临床上了解病人的呼吸心率随时间的变化规律，老年人的家庭健康监护场合，特殊人群的生理状况监护等。现有的监测手段需要人体上佩戴胸带或者电极以实现信号采集，会影响人体的正常运动或者睡眠，为了使实时监测能够更方便的进行，对受监测对象产生尽可能小的影响，目前，生理信号采集系统的体积和功耗大幅减小，便携性和可穿戴性增强，并出现非接触式的生理信号监测方式。  Real-time monitoring of human body surface micro-movement information is of great significance in many occasions, such as clinically understanding the patient's respiratory and heart rate changes over time, family health monitoring of the elderly, and physiological status monitoring of special populations. Existing monitoring methods require the human body to wear chest straps or electrodes to achieve signal acquisition, which will affect the normal movement or sleep of the human body. In order to make real-time monitoring more convenient and have as little impact on the monitored objects as possible, at present, The size and power consumption of the physiological signal acquisition system are greatly reduced, the portability and wearability are enhanced, and a non-contact physiological signal monitoring method appears. the

非接触体表微动信息监测中，用于信号采集传感器或探头本身不与人体接触，而是用电磁波，红外线，超声等方式间接的获取人体生理参数，传感器与信号处理设备间用有线连接或者使用无线通信。非接触式的体表微动信息监测方式更有益于受监测对象，使监测对象使用方便，不受监测仪器束缚，活动自由，无需主动介入监测，同时这种监测方式适应更多的监测场合，包括灾害救援、隔墙监控、传染性疾病临床监护等特殊场合。  In non-contact body surface micro-movement information monitoring, the signal acquisition sensor or probe itself is not in contact with the human body, but indirectly obtains human physiological parameters by means of electromagnetic waves, infrared rays, ultrasound, etc., and the sensor and signal processing equipment are connected by wired or Use wireless communication. The non-contact body surface micro-movement information monitoring method is more beneficial to the monitored object, which makes the monitored object easy to use, not bound by the monitoring instrument, free to move, and does not need to actively intervene in the monitoring. At the same time, this monitoring method is suitable for more monitoring occasions. Including disaster rescue, partition monitoring, clinical monitoring of infectious diseases and other special occasions. the

实用新型内容 Utility model content

本实用新型所要解决的技术问题是提供一种方便，灵活性高的非接触式的人体体表微动信息检测装置。  The technical problem to be solved by the utility model is to provide a convenient and highly flexible non-contact human body surface micro-movement information detection device. the

为解决上述技术问题，本实用新型提供了一种非接触式的人体体表微动信息检测装置，包括：天线、多普勒雷达单元、显示单元、数据采集与处理单元及无线传输单元；  In order to solve the above technical problems, the utility model provides a non-contact human body surface micro-movement information detection device, including: antenna, Doppler radar unit, display unit, data acquisition and processing unit and wireless transmission unit;

所述多普勒雷达单元用于产生特定频率的射频信号，并将所述射频信号传送至所述天线，所述天线在接收到所述射频信号后，将所述射频信号发射至人体体表产生发射信号，所述天线将所述发射信号传送至所述多普勒雷达单元进行放大后，所述多普勒雷达单元将放大后的发射信号传输至所述数据采集与处理单元；  The Doppler radar unit is used to generate a radio frequency signal of a specific frequency, and transmit the radio frequency signal to the antenna, and the antenna transmits the radio frequency signal to the surface of the human body after receiving the radio frequency signal Generate a transmission signal, the antenna transmits the transmission signal to the Doppler radar unit for amplification, and the Doppler radar unit transmits the amplified transmission signal to the data acquisition and processing unit;

所述显示单元用于在接收到所述人体体表微动信息后，对所述人体体表微动信息进行整理、记录或存储，且还能对所述人体体表微动信息进行显示、提示，及将所述人体体表微动信息传送至其他硬件设备;  The display unit is configured to sort out, record or store the human body surface micro-movement information after receiving the human body surface micro-movement information, and also display the human body surface micro-movement information, Prompt, and transmit the micro-movement information of the human body surface to other hardware devices;

所述数据采集与处理单元在接收到所述放大后的发射信息后，对所述放大后的发射信号进行滤波、采样，并从所述放大后的发射信号中获得人体体表微动信息，并将所述微动信息传输至所述显示单元与所述无线传输单元；  After receiving the amplified transmission information, the data acquisition and processing unit filters and samples the amplified transmission signal, and obtains human body surface micro-motion information from the amplified transmission signal, and transmitting the micro-movement information to the display unit and the wireless transmission unit;

所述无线传输单元用于在接收到所述数据采集与处理单元得出的所述人体体表微动信息后，将所述人体体表微动信息通过无线传输方式传输出去。  The wireless transmission unit is configured to transmit the micro-movement information of the human body surface through wireless transmission after receiving the micro-movement information of the human body surface obtained by the data acquisition and processing unit. the

进一步地，所述多普勒雷达单元包括：  Further, the Doppler radar unit includes:

环形器，低噪声放大器，混频器，频率产生器，功率放大器，滤波器 以及可变增益放大器；  Circulators, Low Noise Amplifiers, Mixers, Frequency Generators, Power Amplifiers, Filters and Variable Gain Amplifiers;

其中，所述低噪声放大器、混频器、滤波器以及可变增益放大器形成接收支路，所述功率放大器形成发射支路；  Wherein, the low noise amplifier, mixer, filter and variable gain amplifier form a receiving branch, and the power amplifier forms a transmitting branch;

所述环形器用于隔离接收支路信号和发射支路信号；  The circulator is used to isolate the receiving branch signal and the transmitting branch signal;

所述频率产生器产生两路信号，一路所述射频信号经所述功率放大器放大后经所述环形器送入所述天线发射出去形成发射信号，另一路所述射频信号给所述混频器提供本振信号，所述发射信号经人体体表微动调制后产生反射信号，所述反射信号由所述天线接收后经所述环形器送入所述低噪声放大器放大，放大后的信号送入所述混频器与所述本振信号混频后的信号再经所述滤波器滤波和所述可变增益放大器放大后送入所述数据采集与处理单元。  The frequency generator generates two signals, one of which is amplified by the power amplifier and then sent to the antenna through the circulator to be emitted to form a transmission signal, and the other is sent to the mixer Provide a local oscillator signal, the transmitted signal is modulated by the human body surface to generate a reflected signal, the reflected signal is received by the antenna and then sent to the low noise amplifier for amplification through the circulator, and the amplified signal is sent to the The signal mixed with the local oscillator signal by the mixer is sent to the data acquisition and processing unit after being filtered by the filter and amplified by the variable gain amplifier. the

进一步地，所述频率产生器输出的射频信号的频率为400MHz-11GHz之间的任一频率。  Further, the frequency of the radio frequency signal output by the frequency generator is any frequency between 400MHz-11GHz. the

本实用新型提供的非接触式的人体体表微动信息检测装置，无需佩戴任何胸带或者电极，不需要接触人体就可以检测人体的体表微动信息，经数据采集以及处理后会得到人体的生理状况，还可以直接通过蓝牙，GPRS，WLAN等无线传输方式将得到的人体生理状况传输出去，实现对被测人体的远程监测，方便有效，且灵活性非常高。  The non-contact human body surface micro-movement information detection device provided by the utility model can detect the human body surface micro-motion information without wearing any chest belt or electrode, and can detect the human body surface micro-motion information after data collection and processing. The physiological condition of the human body can also be directly transmitted through Bluetooth, GPRS, WLAN and other wireless transmission methods to realize remote monitoring of the measured human body, which is convenient, effective, and very flexible. the

附图说明 Description of drawings

图1为本实用新型实施例提供的非接触式的人体体表微动信息检测装置的结构框图；  Fig. 1 is a structural block diagram of a non-contact human body surface micro-movement information detection device provided by an embodiment of the present invention;

图2为本实用新型实施例提供的非接触式的人体体表微动信息检测装 置中多普勒雷达单元的结构框图。  Fig. 2 is a structural block diagram of the Doppler radar unit in the non-contact human body surface micro-movement information detection device provided by the embodiment of the present invention. the

具体实施方式 Detailed ways

参见图1，本实用新型实施例提供的一种非接触式的人体体表微动信息检测装置，包括：天线、多普勒雷达单元、显示单元、数据采集与处理单元、无线传输单元及显示单元。其中，多普勒雷达单元用于产生特定频率的射频信号，并将射频信号传送至天线，天线在接收到射频信号后，将射频信号发射至人体体表产生发射信号，天线将发射信号传送至多普勒雷达单元进行放大后，多普勒雷达单元将放大后的发射信号传输至数据采集与处理单元。  Referring to Fig. 1, a non-contact human body surface micro-movement information detection device provided by the embodiment of the present invention includes: antenna, Doppler radar unit, display unit, data acquisition and processing unit, wireless transmission unit and display unit. Among them, the Doppler radar unit is used to generate a radio frequency signal of a specific frequency and transmit the radio frequency signal to the antenna. After the Doppler radar unit performs amplification, the Doppler radar unit transmits the amplified emission signal to the data acquisition and processing unit. the

参见图2，多普勒雷达单元包括：环形器，低噪声放大器，混频器，频率产生器，功率放大器，滤波器以及可变增益放大器。频率产生器产生两路射频信号，频率产生器输出的射频信号的频率为400MHz-11GHz之间的任一频率。  Referring to Fig. 2, the Doppler radar unit includes: a circulator, a low noise amplifier, a mixer, a frequency generator, a power amplifier, a filter and a variable gain amplifier. The frequency generator generates two radio frequency signals, and the frequency of the radio frequency signal output by the frequency generator is any frequency between 400MHz-11GHz. the

多普勒雷达单元中，低噪声放大器、混频器、滤波器以及可变增益放大器形成接收支路，功率放大器形成发射支路，环形器用于隔离接收支路信号和发射支路信号。频率产生器产生两路信号，一路射频信号经功率放大器放大后经环形器送入天线发射出去形成发射信号；另一路射频信号给混频器提供本振信号。发射信号经人体体表微动调制后产生反射信号，反射信号由天线接收后经环形器送入低噪声放大器，放大后的信号送入混频器与本振信号混频后的信号再经滤波器滤波和可变增益放大器放大后送入数据采集与处理单元。  In the Doppler radar unit, the low noise amplifier, mixer, filter and variable gain amplifier form the receiving branch, the power amplifier forms the transmitting branch, and the circulator is used to isolate the receiving branch signal and the transmitting branch signal. The frequency generator generates two signals, one RF signal is amplified by the power amplifier and sent to the antenna through the circulator to be emitted to form a transmission signal; the other RF signal provides the local oscillator signal to the mixer. The transmitted signal is modulated by the human body surface to produce a reflected signal. The reflected signal is received by the antenna and sent to the low-noise amplifier through the circulator. The amplified signal is sent to the mixer to mix with the local oscillator signal and then filtered. Filtered by the filter and amplified by the variable gain amplifier, it is sent to the data acquisition and processing unit. the

显示单元用于在接收到人体体表微动信息后，对人体体表微动信息进行整理、记录或存储，且还能对人体体表微动信息进行显示、提示，及将 人体体表微动信息传送至其他硬件设备。  The display unit is used to organize, record or store the micro-movement information of the human body surface after receiving the micro-movement information of the human body surface, and can also display and prompt the micro-movement information of the human body surface, and display the micro-movement information of the human body surface Send the dynamic information to other hardware devices. the

数据采集与处理单元在接收到放大后的发射信息后，对放大后的发射信号进行滤波、采样，并从放大后的发射信号中获得眼睛运动、胸腔运动、鼻腔运动等人体体表微动信息，并将微动信息传输至显示单元与无线传输单元。  After receiving the amplified transmission information, the data acquisition and processing unit filters and samples the amplified transmission signal, and obtains human body surface micro-movement information such as eye movement, chest cavity movement, and nasal cavity movement from the amplified transmission signal , and transmit the micro-movement information to the display unit and the wireless transmission unit. the

无线传输单元用于在接收到数据采集与处理单元得出的人体体表微动信息后，将人体体表微动信息通过蓝牙、GPRS、WLAN等无线传输方式传输出去。  The wireless transmission unit is used to transmit the micro-movement information of the human body surface through Bluetooth, GPRS, WLAN and other wireless transmission methods after receiving the micro-movement information of the human body surface obtained by the data acquisition and processing unit. the

为使本发明的目的、技术方案和优点更加清楚明白，以下结合具体实施例，对本发明进一步详细说明。  In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples. the

假设多普勒雷达单元所产生的射频信号其中，w₀为发射的射频信号的频率，A_t为发射的射频信号的幅度，

为发射信号初始相位。该射频信号经天线发射出去遇到人体体表后，产生发射信号，该发射信号是经人体体表微动调制后的调制信号，通过天线接收该调制信号。  Assume that the RF signal generated by the Doppler radar unit Among them, w ₀ is the frequency of the transmitted radio frequency signal, _At is the amplitude of the transmitted radio frequency signal,

is the initial phase of the transmitted signal. After the radio frequency signal is emitted by the antenna and meets the body surface of the human body, a transmission signal is generated. The transmission signal is a modulated signal modulated by micro-movement of the human body surface, and the modulated signal is received through the antenna.

假设调制信号为：

其中，A_r为发射的射频信号的幅度，

为时变的相移。  Suppose the modulating signal is:

Among them, _Ar is the amplitude of the transmitted radio frequency signal,

is a time-varying phase shift.

S(t)、S_m(t)两路信号在多普勒雷达单元中经混频与高频滤波后，得到差频信号：  After the two signals of S(t) and _Sm (t) are mixed and filtered by high frequency in the Doppler radar unit, the difference frequency signal is obtained:

A为差频信号的幅度。 

A is the amplitude of the difference frequency signal.

S_d(t)为与眼睛运动、胸腔运动、鼻腔运动等微动信息相关的信号，是所要监测和处理的信号。  S _d (t) is a signal related to micro-movement information such as eye movement, chest movement, and nasal cavity movement, and is a signal to be monitored and processed.

本实用新型提供的非接触式的人体体表微动信息检测装置，无需佩戴 任何胸带或者电极，不需要接触人体就可以检测人体的体表微动信息，经数据采集以及处理后会得到人体的生理状况，还可以直接通过蓝牙，GPRS，WLAN等无线传输方式将得到的人体生理状况传输出去，实现对被测人体的远程监测，方便有效，且灵活性非常高。  The non-contact human body surface micro-movement information detection device provided by the utility model can detect the human body surface micro-motion information without wearing any chest belt or electrode, and can detect the human body surface micro-motion information after data collection and processing. The physiological condition of the human body can also be directly transmitted through Bluetooth, GPRS, WLAN and other wireless transmission methods to realize remote monitoring of the measured human body, which is convenient, effective, and very flexible. the

最后所应说明的是，以上具体实施方式仅用以说明本实用新型的技术方案而非限制，尽管参照实例对本实用新型进行了详细说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的精神和范围，其均应涵盖在本实用新型的权利要求范围当中。  Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to examples, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the claims of the utility model. the