CN110664393A - Electrocardio guardianship device based on wireless sensor - Google Patents

Abstract

Translated fromChinese

一种基于无线传感器的心电监护装置，属于传感器检测技术领域，是主要由心电电极、放大滤波电路、射频发射芯片、射频接收芯片、MAX3218模块和PC机组成的，其特征在于：所述心电电极和放大滤波电路相连接，放大滤波电路和射频发射芯片相连接，射频发射芯片和射频接收芯片相连接，射频接收芯片和MAX3218模块相连接，MAX3218模块与PC机相连接，该系统的基于无线传感器的心电监护系统，具有携带方便、应用灵活等优点，高性能、低功耗的新器件，为研制心电监护系统提供了良好的技术支持。

An ECG monitoring device based on wireless sensors belongs to the technical field of sensor detection, and is mainly composed of ECG electrodes, amplifying filter circuits, a radio frequency transmitting chip, a radio frequency receiving chip, a MAX3218 module and a PC, and is characterized in that: the The ECG electrode is connected with the amplifying filter circuit, the amplifying filter circuit is connected with the radio frequency transmitting chip, the radio frequency transmitting chip is connected with the radio frequency receiving chip, the radio frequency receiving chip is connected with the MAX3218 module, and the MAX3218 module is connected with the PC. The ECG monitoring system based on wireless sensors has the advantages of easy portability and flexible application, and new devices with high performance and low power consumption provide good technical support for the development of the ECG monitoring system.

Description

Translated fromChinese

一种基于无线传感器的心电监护装置A wireless sensor-based ECG monitoring device

技术领域technical field

本发明涉及一种基于无线传感器的心电监护装置，属于传感器检测技术领域。The invention relates to an electrocardiogram monitoring device based on a wireless sensor, which belongs to the technical field of sensor detection.

背景技术Background technique

随着我国步入老龄化社会，心血管疾病的发病率有升高的趋势，所以对生理监护仪提出了迫切的要求，目前，国内外的无线监测系统多采用付费认证的蓝牙技术或基于无线局域网，价格昂贵，普及度较低。另一方面，无线监测系统的便携特性对设备尺寸提出了较高要求，而小尺寸的电路又势必与电路性能之间存在矛盾，目前所使用的监护方法大多采用固定的心电监护仪连接设备将传感器探头连接在病人与监护设备之间进行信号的传递，。复杂的设备，众多的连线，会造成病人心理上的压力和紧张情绪，可能会影响病人身体状况，使得诊断所得到的数据与真实情况有一定差距，给病人和医护人员都带来不便，可能会影响对病情的正确诊断。本发明研发一种基于无线传感器的心电监护装置。As our country enters an aging society, the incidence of cardiovascular disease is on the rise, so there is an urgent requirement for physiological monitors. At present, wireless monitoring systems at home and abroad mostly use paid-for-certified Bluetooth technology or wireless-based Local area network, expensive and less popular. On the other hand, the portable nature of the wireless monitoring system puts forward higher requirements on the size of the equipment, and the circuit of small size is bound to be in conflict with the performance of the circuit. Most of the monitoring methods currently used use a fixed ECG monitor to connect the equipment. Connect the sensor probe between the patient and the monitoring equipment for signal transmission. Complex equipment and numerous connections will cause psychological pressure and tension in patients, which may affect the patient's physical condition, making the data obtained from the diagnosis and the real situation to a certain extent, causing inconvenience to both patients and medical staff. May interfere with the correct diagnosis of the condition. The invention develops an electrocardiogram monitoring device based on a wireless sensor.

发明内容SUMMARY OF THE INVENTION

针对上述不足，本发明提供了一种基于无线传感器的心电监护装置。In view of the above deficiencies, the present invention provides an ECG monitoring device based on a wireless sensor.

本发明是通过以下技术方案实现的：一种基于无线传感器的心电监护装置，是主要由心电电极、放大滤波电路、射频发射芯片、射频接收芯片、MAX3218模块和PC机组成的，其特征在于：所述心电电极和放大滤波电路相连接，放大滤波电路和射频发射芯片相连接，射频发射芯片和射频接收芯片相连接，射频接收芯片和MAX3218模块相连接，MAX3218模块与PC机相连接。The present invention is realized through the following technical solutions: a wireless sensor-based cardiac monitoring device is mainly composed of ECG electrodes, amplifying filter circuits, radio frequency transmitting chips, radio frequency receiving chips, MAX3218 modules and a PC. The electrocardiographic electrode is connected with the amplifying filter circuit, the amplifying filter circuit is connected with the radio frequency transmitting chip, the radio frequency transmitting chip is connected with the radio frequency receiving chip, the radio frequency receiving chip is connected with the MAX3218 module, and the MAX3218 module is connected with the PC .

所述的放大滤波电路放大器选用美国AD公司的精密仪表放大器AD623，前置滤波电路采用BB公司的OPA2277运算放大器。The amplifier of the amplifying filter circuit adopts the precision instrumentation amplifier AD623 of AD Company of the United States, and the pre-filter circuit adopts the OPA2277 operational amplifier of BB Company.

所述的PC机与单片机的通信采用RS-232C接口与单片机通信的方法，并使用MAX3232进行电平转换。The communication between the PC and the single-chip computer adopts the RS-232C interface to communicate with the single-chip computer, and uses MAX3232 for level conversion.

该发明的有益之处是：本发明的基于无线传感器的心电监护系统，具有携带方便、应用灵活等优点，高性能、低功耗的新器件，为研制心电监护系统提供了良好的技术支持。The benefits of the invention are: the wireless sensor-based ECG monitoring system of the present invention has the advantages of being convenient to carry, flexible in application, and a new device with high performance and low power consumption, which provides a good technology for the development of the ECG monitoring system. support.

附图说明Description of drawings

图1为本发明的系统示意图。FIG. 1 is a schematic diagram of the system of the present invention.

图中，1、心电电极，2、放大滤波电路，3、射频发射芯片，4、射频接收芯片，5、MAX3218模块，6、PC机。In the figure, 1. ECG electrode, 2. Amplifying filter circuit, 3. RF transmitting chip, 4. RF receiving chip, 5. MAX3218 module, 6. PC.

具体实施方式Detailed ways

一种基于无线传感器的心电监护装置，是主要由心电电极1、放大滤波电路2、射频发射芯片3、射频接收芯片4、MAX3218模块5和PC机6组成的，其特征在于：所述心电电极1和放大滤波电路2相连接，放大滤波电路2和射频发射芯片3相连接，射频发射芯片3和射频接收芯片4相连接，射频接收芯片4和MAX3218模块5相连接，MAX3218模块5与PC机6相连接。An ECG monitoring device based on wireless sensors is mainly composed of ECG electrodes 1, amplifying filter circuits 2, radio frequency transmitting chips 3, radio frequency receiving chips 4, MAX3218 modules 5 and PCs 6, and is characterized in that: the said The ECG electrode 1 is connected to the amplifying filter circuit 2, the amplifying filter circuit 2 is connected to the RF transmitter chip 3, the RF transmitter chip 3 is connected to the RF receiver chip 4, the RF receiver chip 4 is connected to the MAX3218 module 5, and the MAX3218 module 5 is connected Connect with PC 6.

所述的放大滤波电路2放大器选用美国AD公司的精密仪表放大器AD623，前置滤波电路采用BB公司的OPA2277运算放大器。The amplifier of the amplifying filter circuit 2 adopts the precision instrumentation amplifier AD623 of AD Company of the United States, and the pre-filter circuit adopts the OPA2277 operational amplifier of BB Company.

所述的PC机6与单片机的通信采用RS-232C接口与单片机通信的方法，并使用MAX3232进行电平转换。The communication between the PC 6 and the single-chip microcomputer adopts the RS-232C interface to communicate with the single-chip computer, and uses MAX3232 to perform level conversion.

本系统在工作时，心电采集与放大电路由心电电极、放大滤波电路组成，完成心电图的采集与放大工作。心电电极传感器将心电生理信息变为电信号，经放大、滤波等处理后输入到发射端，无线发送、接收部分主要由两片n RF24E1芯片、EEPROM、晶振和印刷天线组成。发射端经过n RF24E1将信号转换为数字信号，经调制后发射出去；无线收发模块之间的通信采用印刷天线，无线接收模块与主机间采用RS232C接口进行串行通讯；接收端将接收到的信号解调，解调信号经MAX3218进行电平转换，然后通过RS232串口将信号送给PC机实时显示与处理。系统软件采用Lab VIEW图形化编程环境，能对心电信号进行频谱分析，信号数据和特征参数可以存入相关文件，还具有显示和回放等功能。When the system is working, the ECG acquisition and amplification circuit consists of ECG electrodes, amplifying filter circuits, and completes ECG acquisition and amplification. The ECG electrode sensor converts the ECG physiological information into electrical signals, which are input to the transmitter after amplification, filtering, etc. The wireless sending and receiving part is mainly composed of two n RF24E1 chips, EEPROM, crystal oscillator and printed antenna. The transmitter converts the signal into a digital signal through n RF24E1, and transmits it after modulation; the communication between the wireless transceiver modules uses a printed antenna, and the wireless receiver module and the host use the RS232C interface for serial communication; the receiver will receive the signal. Demodulation, the demodulation signal is level-converted by MAX3218, and then the signal is sent to the PC for real-time display and processing through the RS232 serial port. The system software adopts Lab VIEW graphical programming environment, which can analyze the spectrum of ECG signal, the signal data and characteristic parameters can be stored in relevant files, and also have functions such as display and playback.

对于本领域的普通技术人员而言，根据本发明的教导，在不脱离本发明的原理与精神的情况下，对实施方式所进行的改变、修改、替换和变型仍落入本发明的保护范围之内。For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principle and spirit of the present invention, changes, modifications, substitutions and alterations to the embodiments still fall within the protection scope of the present invention within.

Claims (3)

Translated fromChinese

1.一种基于无线传感器的心电监护装置，是主要由心电电极、放大滤波电路、射频发射芯片、射频接收芯片、MAX3218模块和PC机组成的，其特征在于：所述心电电极和放大滤波电路相连接，放大滤波电路和射频发射芯片相连接，射频发射芯片和射频接收芯片相连接，射频接收芯片和MAX3218模块相连接，MAX3218模块与PC机相连接。1. an ECG monitoring device based on a wireless sensor is mainly composed of an ECG electrode, amplifying filter circuit, a radio frequency transmitting chip, a radio frequency receiving chip, a MAX3218 module and a PC, and is characterized in that: the ECG electrode and The amplifying and filtering circuit is connected, the amplifying and filtering circuit is connected with the radio frequency transmitting chip, the radio frequency transmitting chip is connected with the radio frequency receiving chip, the radio frequency receiving chip is connected with the MAX3218 module, and the MAX3218 module is connected with the PC.2.如权利要求1所述的一种基于无线传感器的心电监护装置，其特征在于：所述的放大滤波电路放大器选用美国AD公司的精密仪表放大器AD623，前置滤波电路采用BB公司的OPA2277运算放大器。2. a kind of ECG monitoring device based on wireless sensor as claimed in claim 1, is characterized in that: described amplifying filter circuit amplifier selects precision instrument amplifier AD623 of American AD company for use, and pre-filter circuit adopts OPA2277 of BB company Operational Amplifier.3.如权利要求1所述的一种基于无线传感器的心电监护装置，其特征在于：所述的PC机与单片机的通信采用RS-232C接口与单片机通信的方法，并使用MAX3232进行电平转换。3. A wireless sensor-based ECG monitoring device as claimed in claim 1, characterized in that: the communication between the PC and the single-chip microcomputer adopts the method of communicating with the single-chip microcomputer through the RS-232C interface, and uses MAX3232 to conduct level convert.

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