技术领域technical field
本发明涉及一种心电监测装置及其控制方法，属于医疗器械的技术领域。The invention relates to an electrocardiogram monitoring device and a control method thereof, belonging to the technical field of medical instruments.
背景技术Background technique
心脏的生物电变化通过心脏周围的导电组织和体液反映到身体表面上来，使体表各部位在每一个心动周期中也都发生有规律的电变化，将测量电极放置于体表的一定部位记录出来的心脏电变化曲线，就是心电图。在心电测量中，人体相当于一个信号源，人体的阻抗相当于信号源内阻抗，此内阻抗主要取决于电极与皮肤的接触阻抗。他不仅因人而异，而且在同一人体的同一部位也可能因不同时刻有很大变动，变动范围可达2～150kΩ，所以人体是一个不稳定的高内阻信号源。因此，要求心电放大器具有高输入阻抗(2MΩ以上)。The bioelectrical changes of the heart are reflected on the body surface through the conductive tissue and body fluid around the heart, so that various parts of the body surface also undergo regular electrical changes in each cardiac cycle, and the measuring electrodes are placed on a certain part of the body surface to record The resulting electrical change curve of the heart is the electrocardiogram. In ECG measurement, the human body is equivalent to a signal source, and the impedance of the human body is equivalent to the internal impedance of the signal source, which mainly depends on the contact impedance between the electrode and the skin. Not only does it vary from person to person, but also the same part of the same human body may vary greatly at different times, and the range of variation can reach 2-150kΩ, so the human body is an unstable high internal resistance signal source. Therefore, the ECG amplifier is required to have a high input impedance (above 2MΩ).
体表的心电电位一般在5mv以下，而其高频分量(直至2kHZ左右)形成的小波幅度较小(20μv左右)，往往受到肌电、皮肤电、市电及系统内部噪声的干扰。其中肌电可通过受试者的配合尽量减少；市电50HZ干扰是心电测量中干扰的主要来源，对心电放大器而言为共模干扰信号，所以努力提高心电放大器共模抑制比CMRR，以保证在放大心电信号的同时也能有效抑制50HZ共模干扰，在心电放大器的设计调试中特别重要。努力降低系统内部噪声也是设计中的一个重要方面。The ECG potential on the body surface is generally below 5mv, and the wavelet amplitude formed by its high-frequency component (up to about 2kHZ) is small (about 20μv), which is often interfered by myoelectricity, skin electricity, mains electricity and internal system noise. Among them, EMG can be reduced as much as possible through the cooperation of the subjects; 50HZ mains interference is the main source of interference in ECG measurement, and it is a common-mode interference signal for ECG amplifiers, so efforts should be made to improve the common-mode rejection ratio CMRR of ECG amplifiers , to ensure that the 50HZ common-mode interference can be effectively suppressed while amplifying the ECG signal, which is particularly important in the design and debugging of the ECG amplifier. Efforts to reduce system internal noise are also an important aspect of design.
目前，为了减少肌电、皮肤电对心电信号的影响，通常需要使得电极与人体接触良好，一种典型的心电图电极安放方法如下：At present, in order to reduce the influence of electromyography and skin electricity on ECG signals, it is usually necessary to make the electrodes in good contact with the human body. A typical electrocardiogram electrode placement method is as follows:
1、将专用的一次性电极背衬上的特效砂片轻擦皮肤表面，边擦边转换方向，去掉皮肤表面角质层；1. Gently rub the special-effect sand sheet on the special disposable electrode backing on the skin surface, change direction while rubbing, and remove the stratum corneum on the skin surface;
2、用75％医用酒精棉球反复擦皮肤表面，去掉表面油脂；2. Wipe the skin surface repeatedly with 75% medical alcohol cotton ball to remove the surface oil;
3、撕下一次性电极背衬，将含导电糊电极片使之与皮肤粘牢，再将电极周边的不干胶纸粘住皮肤表面，以固定住电极；3. Tear off the disposable electrode backing, stick the electrode sheet containing conductive paste to the skin, and then stick the self-adhesive paper around the electrode to the skin surface to fix the electrode;
4、将导联线连接至相应的电极。4. Connect the lead wires to the corresponding electrodes.
然而，为了取得干扰较小的心电信号，需要采用极为繁琐地步骤安放电极，并且需要较高的专业技术水平，病人也不便于自行操作，这极大地限制了心电监测装置的使用范围。However, in order to obtain ECG signals with less interference, it is necessary to adopt extremely cumbersome steps to place electrodes, and requires a high level of professional skills, and it is not convenient for patients to operate by themselves, which greatly limits the scope of use of ECG monitoring devices.
发明内容Contents of the invention
发明目的：本发明的目的在于提供一种电极安放简便的同时，能够减小肌电和皮肤电信号对心电信号干扰的心电监测装置。Purpose of the invention: The purpose of the present invention is to provide an electrocardiographic monitoring device that can reduce the interference of electromyographic and electrodermal signals on electrocardiographic signals while placing electrodes easily.
技术方案：本发明所述的心电监测装置，包括参考电极和差分信号电极1、差分信号电极2及主机，所述的参考电极、差分信号电极1和差分信号电极2分别由两个以上的电极片线与构成，线与指的是信号端分别用导线与两个以上的电极片连接，且该信号端所得信号为各电极片获得信号叠加而成，所述两个以上线与构成的电极片布置位置相互临近。Technical solution: The ECG monitoring device of the present invention includes a reference electrode, a differential signal electrode 1, a differential signal electrode 2 and a host, and the reference electrode, the differential signal electrode 1 and the differential signal electrode 2 are respectively composed of two or more Electrode piece line and composition, line and means that the signal end is connected to two or more electrode pieces with wires, and the signal obtained by the signal terminal is obtained by superimposing the signals obtained by each electrode piece, and the above two lines and the composition The electrode sheets are arranged adjacent to each other.
进一步地，参考电极、差分信号电极1、差分信号电极2均由3片电极片线与构成。Further, the reference electrode, the differential signal electrode 1 and the differential signal electrode 2 are all composed of three electrode strips and wires.
进一步地，主机包括心电检测模块、模数转换器和主处理器，所述的参考电极、差分信号电极1和差分信号电极2分别连接至心电检测模块，所述心电检测模块连接至模数转换器，所述模数转换器将信号连接至主处理器。Further, the host computer includes an ECG detection module, an analog-to-digital converter and a main processor, and the reference electrode, differential signal electrode 1 and differential signal electrode 2 are respectively connected to the ECG detection module, and the ECG detection module is connected to An analog-to-digital converter that connects the signal to the main processor.
进一步地，还包括气泵、气阀、气压传感器、血压测量模块，所述气泵、气阀、气压传感器分别连接至血压测量模块，所述的血压测量模块与主处理器相连接。Further, it also includes an air pump, an air valve, an air pressure sensor, and a blood pressure measurement module, the air pump, air valve, and air pressure sensor are respectively connected to the blood pressure measurement module, and the blood pressure measurement module is connected to the main processor.
进一步地，还包括数据存储单元、按键、WiFi模块、液晶显示屏，所述的数据存储单元、按键、WiFi模块、液晶显示屏分别连接至主处理器。Further, it also includes a data storage unit, keys, a WiFi module, and a liquid crystal display, and the data storage unit, keys, WiFi module, and liquid crystal display are respectively connected to the main processor.
本发明还包括上述心电测量装置的中的主处理器的控制方法的技术方案，其特征在于，包括以下步骤：The present invention also includes the technical scheme of the control method of the main processor in the above-mentioned electrocardiogram measuring device, which is characterized in that it includes the following steps:
1)系统初始化；1) System initialization;
2)控制WiFi模块连接网络；2) Control the WiFi module to connect to the network;
3)接收按键信号；3) Receive the button signal;
4)若接收到的按键信号为心电测量信号，则发送启动信号至模数转换模块，模数转换模块发送信号启动心电测量模块，并接收心电测量模块采集的经过模数转换模块处理后的数据，进行步骤7)；若接收到的按键信号为血压测量信号，则发送启动信号至血压测量模块，并接收血压测量模块发送的数据，进行步骤7)；若接收到的按键信号为心电血压测量信号，这发送启动信号至模数转换模块，模数转换模块发送信号启动心电测量模块，并接收心电测量模块采集的经过模数转换模块处理后的数据，发送启动信号至血压测量模块，并接收血压测量模块发送的数据，进行步骤7)；若接收到的按键信号为读取心电血压结果数据，进行步骤5)；若未接收到按键信号，返回步骤3)；4) If the received button signal is an ECG measurement signal, then send a start signal to the analog-to-digital conversion module, and the analog-to-digital conversion module sends a signal to start the ECG measurement module, and receives the data collected by the ECG measurement module and processed by the analog-to-digital conversion module After the data, proceed to step 7); if the received button signal is a blood pressure measurement signal, then send a start signal to the blood pressure measurement module, and receive the data sent by the blood pressure measurement module, and proceed to step 7); if the received button signal is ECG blood pressure measurement signal, which sends a start signal to the analog-to-digital conversion module, and the analog-to-digital conversion module sends a signal to start the ECG measurement module, and receives the data collected by the ECG measurement module after processing by the analog-to-digital conversion module, and sends the start signal to Blood pressure measurement module, and receive the data that blood pressure measurement module sends, carry out step 7); If the button signal received is to read ECG blood pressure result data, carry out step 5); If do not receive button signal, return to step 3);
5)读取数据存储单元中的数据，并处理后显示在所述液晶显示屏上；5) read the data in the data storage unit, and display it on the liquid crystal display after processing;
6)检测数据是否已经全部被读取，若未被全部读取，运行步骤5)，若已经全部被读取，运行步骤11)；6) Check whether the data has all been read, if not all read, run step 5), if all have been read, run step 11);
7)处理读取到的数据，并显示在所述液晶显示屏上；7) process the read data and display it on the liquid crystal display;
8)检测测量模块是否均已完成测量，若未完成，则运行步骤7)；若测量均已完成，则输出最终结果，并运行步骤9)；8) Check whether the measurement modules have all completed the measurement, if not completed, then run step 7); if the measurement has been completed, then output the final result, and run step 9);
9)输出最终结果并存储至数据存储单元；9) output the final result and store it in the data storage unit;
10)检测是否已经连接至网络服务器，若已经连接至网络服务器，则将最终结果床送至网络服务器，并运行步骤11)；若未连接至网络服务器，直接运行步骤11)；10) Detect whether connected to the network server, if connected to the network server, then send the final result to the network server, and run step 11); if not connected to the network server, directly run step 11);
11)结束。11) End.
有益效果：与现有技术相比，本发明具有以下显著优点：本发明采用线与电极，线与电极是指信号端分别用导线与多个(两个以上)的电极片连接，这时信号端得到的信号为各电极片获取的信号叠加而成。多个电极片线与构成的信号电极或参考电极，一方便可以更好地与并不平整的人体表面进行接触，另一方面，采用在布置位置相互临近的N个线与电极片获取信号，依据信号的叠加原理，随机的干扰电压信号--例如肌电信号，经过如此设置的线与电极片可以变为原来干扰电压信号的从而可以使得该心电监测装置在线与电极黏附皮肤的情况下与目前通用的心电标准电极相比，便可以获得噪声低又稳定的心电信号。Beneficial effects: compared with the prior art, the present invention has the following remarkable advantages: the present invention adopts wire and electrode, and wire and electrode refer to that the signal terminal is connected with a plurality of (more than two) electrode pieces respectively with wire, at this moment the signal The signal obtained at the end is the superposition of the signals obtained by each electrode piece. Multiple electrode wires and signal electrodes or reference electrodes are used to make better contact with uneven human body surfaces. On the other hand, N wires and electrode pads that are adjacent to each other are used to obtain signals. According to the principle of signal superposition, random interference voltage signals—such as electromyographic signals, the wires and electrode pieces set up in this way can become the original interference voltage signals. Therefore, the electrocardiogram monitoring device can obtain low-noise and stable electrocardiogram signals when the wires and electrodes are adhered to the skin, compared with the current general electrocardiogram standard electrodes.
此外，本发明采用心电测量模块与血压测量模块相结合的方法使得在测量心电的同时能够测量血压值，既方便使用者使用，又比不同时分别测得的心电值和血压值更能够反映生理健康的真实情况。因为对于同一个个体心脏的搏动情况与血压情况应是关联的，应有它一定的关联度，这关联度一定要在对心电值和血压值进行同时测量时求得，否则无意义。In addition, the present invention adopts the method of combining the electrocardiogram measurement module and the blood pressure measurement module so that the blood pressure value can be measured at the same time as the electrocardiogram measurement, which is not only convenient for users to use, but also more accurate than the electrocardiogram value and blood pressure value measured separately at different times. Can reflect the real situation of physical health. Because the pulsation and blood pressure of the same individual heart should be related, there should be a certain degree of correlation. This degree of correlation must be obtained when the ECG and blood pressure are measured simultaneously, otherwise it is meaningless.
附图说明Description of drawings
图1为本发明中的电极片连接示意图；Fig. 1 is a schematic diagram of electrode sheet connection among the present invention;
图2为本发明所述的心电监测装置硬件结构框图；Fig. 2 is a block diagram of the hardware structure of the ECG monitoring device of the present invention;
图3为本发明所述的心电监测装置中的心电检测模块电路图；Fig. 3 is the circuit diagram of the ECG detection module in the ECG monitoring device of the present invention;
图4为本发明所述的心电监测装置中的包含模数转换器的主处理器电路图；Fig. 4 is the circuit diagram of the main processor comprising the analog-to-digital converter in the ECG monitoring device of the present invention;
图5为本发明所述的心电监测装置中的液晶显示屏电路图；Fig. 5 is the liquid crystal display circuit diagram in the ECG monitoring device of the present invention;
图6为本发明所述的心电监测装置中的WiFi模块电路图；Fig. 6 is a circuit diagram of the WiFi module in the ECG monitoring device of the present invention;
图7为本发明所述的心电监测装置中的血压测量模块电路图；Fig. 7 is a circuit diagram of the blood pressure measurement module in the electrocardiogram monitoring device of the present invention;
图8为本发明所述的心电监测装置中的按键电路图；Fig. 8 is a key circuit diagram in the ECG monitoring device of the present invention;
图9为本发明所述的心电监测装置中的数据存储单元电路图；Fig. 9 is a circuit diagram of the data storage unit in the ECG monitoring device of the present invention;
图10为本发明所述的心电监测装置中的电源电路图；Fig. 10 is a power supply circuit diagram in the ECG monitoring device of the present invention;
图11为本发明所述的控制方法算法流程图；Fig. 11 is a flow chart of the control method algorithm of the present invention;
图12为本发明所述的心电监测装置测得的心电图形与现有的心电监测装置测得的心电图形对比图；Fig. 12 is a comparison chart of the ECG pattern measured by the ECG monitoring device of the present invention and the ECG pattern measured by the existing ECG monitoring device;
图13为本发明所述的心电检测装置显示屏显示的图形。Fig. 13 is a graph displayed on the display screen of the ECG detection device according to the present invention.
具体实施方式detailed description
下面对本发明技术方案进行详细说明，但是本发明的保护范围不局限于所述实施例。The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.
实施例：Example:
本实施例设置为腕式心电监测装置的原型机，本领域技术人员都可以想到将该心电检测装置还可以设置为臂式心电检测装置，或者引出电极引线后设置的离体式心电监测装置而不影响本发明的实现。This embodiment is set as a prototype of a wrist-type ECG monitoring device. Those skilled in the art can imagine that the ECG detection device can also be set as an arm-type ECG detection device, or an isolated ECG device after the electrode leads are drawn out. The monitoring device does not affect the realization of the present invention.
本实施例中，差分信号电极1、差分信号电极2、参考电极结构相同，均为如图1所示的结构，该图为本发明实施实例中的三块电极片线与相互连通构成的电极示意图。下方的三小块即为电极片，各个电极片通过用导线分別连接至信号端构成线与电极。本发明的心电测量装置设置差分信号电极1、差分信号电极2和参考电极。每个电极布三小块线与铜质镀金电极片或不锈钢电极片，如图1所示的每小块电极片的尺寸为14×9mm2(具体大小可视机壳大小而定)。三块电极片线与一方面是为了更好的与手腕部位接触，另一方面是为了降低皮肤电和肌电的干扰。依据信号迭加原理，干扰电压信号经过线与变为原来干扰电压信号的(N为线与电极的电极片片数，这里N＝3)倍，N越大干扰比原来降低的倍数越大，心电波形越清晰。因为皮肤电和肌电对于心电信号来说，其干扰越小越好。In this embodiment, the differential signal electrode 1, the differential signal electrode 2, and the reference electrode have the same structure, all of which are as shown in Figure 1. This figure shows the electrodes formed by the three electrode sheet lines and the interconnection in the embodiment of the present invention. schematic diagram. The three small pieces below are the electrode sheets, and each electrode sheet is connected to the signal terminal with a wire to form a line and an electrode. The electrocardiogram measuring device of the present invention is provided with a differential signal electrode 1, a differential signal electrode 2 and a reference electrode. Each electrode is clothed with three small wires and copper gold-plated electrode sheets or stainless steel electrode sheets. The size of each small electrode sheet shown in Figure 1 is 14×9mm2 (the specific size depends on the size of the casing). On the one hand, the three electrode wires are used for better contact with the wrist, and on the other hand, to reduce the interference of skin electricity and myoelectricity. According to the principle of signal superposition, the interference voltage signal passes through the line and becomes the original interference voltage signal. (N is the number of electrode sheets of the wire and the electrode, where N=3) times, the greater the N, the greater the reduction factor of the interference ratio, and the clearer the ECG waveform. Because skin electricity and electromyography have less interference with ECG signals, the better.
如图2所示为该实施例中的腕式心电血压检测装置结构框图，其中差分信号电极1端线与的三个电极片置于本实施例的腕式电子血压心电监测装置机壳正视方向左右侧，左侧布一个电极片(大拇指按放处)，右侧布两个电极片(食指或中指按放处)；这样设置，可以有效地避免血压测量时的气泵对心电测量电路的干扰影响；差分信号电极2端线与的三个电极片和参考电极2端线与的三个电极片粘贴在血压袖带套上置于左手腕部。图2中，差分信号电极1端、差分信号电极2端和参考电极端分别连通至心电检测 模块，心电检测模块再连接至模数转换器，所述模数转换器再通过通用IO接口与主处理器相连；用以检测血压的气泵、气阀、气压传感器也分别同血压测量模块相连接，血压测量模块再与主处理器通过UART串口相连，数据存储单元与主处理器通过SPI串口相连，按键通过通用IO接口与主处理器相连，液晶显示频通过通用IO接口与主处理器相连，WiFi模块通过UART串口与主处理器相连。此外，还设置有电源为各模块、部件和单元供电。As shown in Figure 2, it is a structural block diagram of the wrist-type ECG blood pressure detection device in this embodiment, wherein the differential signal electrode 1 terminal line and the three electrode pieces are placed in the front view of the wrist-type electronic blood pressure ECG monitoring device casing of this embodiment The left and right sides of the direction, one electrode piece on the left side (the place where the thumb is pressed), and two electrode pieces on the right side (the place where the index finger or middle finger is pressed); this setting can effectively prevent the air pump from measuring the ECG during blood pressure measurement Interference effect of the circuit; the three electrode sheets connected to the 2-terminal line of the differential signal electrode and the 3 electrode sheets connected to the 2-terminal line of the reference electrode are pasted on the blood pressure cuff and placed on the left wrist. In Fig. 2, the differential signal electrode 1 terminal, the differential signal electrode 2 terminal and the reference electrode terminal are respectively connected to the ECG detection module, and the ECG detection module is then connected to the analog-to-digital converter, and the analog-to-digital converter is then connected to the general-purpose IO interface Connected to the main processor; the air pump, air valve and air pressure sensor used to detect blood pressure are also connected to the blood pressure measurement module, and the blood pressure measurement module is connected to the main processor through the UART serial port, and the data storage unit and the main processor are connected through the SPI serial port The buttons are connected to the main processor through the general IO interface, the liquid crystal display frequency is connected to the main processor through the general IO interface, and the WiFi module is connected to the main processor through the UART serial port. In addition, a power supply is provided to supply power to the various modules, components and units.
本实施例中的心电监测装置的结构：采用一块电路板，同一个电源，电源开关合上，同时检测血压、显示血压值、脉搏波形及心电显示波形，并同时在液晶显示屏上显示。The structure of the ECG monitoring device in this embodiment: adopt a circuit board, the same power supply, the power switch is closed, detect blood pressure, display blood pressure value, pulse waveform and ECG display waveform at the same time, and display on the LCD screen at the same time .
通过手持信号电极，如图3所示人体的心电信号经心电检测模块进行放大和滤波处理后，通过AD_ECG送入如图4所示的ARM主处理器M051进行AD转换，该处理器采用新唐科技NuMicroM051型32位微处理器。此处的ARM主处理器带有模数转换功能，相当于所述主处理器和模数转换器模块的组合。在主处理器中做信号的数据分析得出相应的心电参数。同时ARM主处理器通过UART(图4、图7中的7BP_TX，BP_RX端口)发送信号命令血压模块开始测量，血压测量完成后模块将血压数据通过UART传回主处理器。其中血压测量主芯片为中颖电子SH79F6488，其所使用的程序由中颖电子提供；压力传感器采用的是台湾联兴微的US9111信芯片，其所使用的程序由台湾联兴微提供。Through the hand-held signal electrodes, as shown in Figure 3, the ECG signal of the human body is amplified and filtered by the ECG detection module, and then sent to the ARM main processor M051 as shown in Figure 4 through AD_ECG for AD conversion. Nuvoton Technology NuMicroM051 32-bit microprocessor. The ARM main processor here has an analog-to-digital conversion function, which is equivalent to the combination of the main processor and the analog-to-digital converter module. The corresponding ECG parameters are obtained by analyzing the signal data in the main processor. At the same time, the ARM main processor sends a signal through the UART (7BP_TX, BP_RX ports in Figure 4 and Figure 7) to order the blood pressure module to start measuring. After the blood pressure measurement is completed, the module sends the blood pressure data back to the main processor through the UART. Among them, the main chip for blood pressure measurement is Zhongying Electronics SH79F6488, and the program used is provided by Zhongying Electronics; the pressure sensor uses the US9111 letter chip of Taiwan Lianxing Micro, and the program used is provided by Taiwan Lianxing Micro.
ARM主处理器M051得到心电参数及血压数据后，可以通过8080接口模式(图4、图5中的LCMD0[0:15]，LCMCS，LCMRS，LCMWR，LCMRD，RST端口)将心电的波形和参数以及血压值显示在TFT显示屏上。同时M051通过SPI接口(图4、图9中的SPISS0，MISO0，MOSI0，SPICLK0端口)扩展FLASH存储，可以将心电的波形和参数以及血压值存入FLASH存储中。另外如果有外部网络，主处理器M051可以通过UART接口(图4、图6中的ICECLK，ICEDAT端口)与WIFI模块相连，通过WIFI模块可以将数据传输到指定的服务器上。After the ARM main processor M051 obtains the ECG parameters and blood pressure data, it can transfer the ECG waveform to And parameters and blood pressure values are displayed on the TFT display. At the same time, M051 expands FLASH storage through SPI interface (SPISS0, MISO0, MOSI0, SPICLK0 ports in Figure 4 and Figure 9), and can store ECG waveforms, parameters and blood pressure values in FLASH storage. In addition, if there is an external network, the main processor M051 can be connected to the WIFI module through the UART interface (ICECLK, ICEDAT port in Figure 4 and Figure 6), and the data can be transmitted to the designated server through the WIFI module.
如图8和图10所示，人机接口中，除了TFT显示屏幕外还有三个按键，其中有一个电源开关按键，一个选择键(SELKEY)和确认键(OKKEY)。通过这三个按键可以方便地进行操作。As shown in Figure 8 and Figure 10, in addition to the TFT display screen, there are three keys in the man-machine interface, including a power switch key, a selection key (SELKEY) and an confirmation key (OKKEY). The operation can be conveniently carried out by these three keys.
电源采用800mA/h锂电池供电，通过由电源开关按键的控制可以开启或关闭系统。The power supply is powered by 800mA/h lithium battery, and the system can be turned on or off through the control of the power switch button.
如图10所示，5V5端口是整个系统的电源接口，它经稳压器ME6206生成的各个 电源给个模块供给电源。如VCCE给主处理器和其它数字点供电，VLCD给TFT显示屏供电，aVCC和aVEE给心电模块供电。As shown in Figure 10, the 5V5 port is the power interface of the entire system, which supplies power to each module through each power supply generated by the voltage stabilizer ME6206. For example, VCCE supplies power to the main processor and other digital points, VLCD supplies power to the TFT display screen, and aVCC and aVEE supply power to the ECG module.
其中心电检测模块电路由仪表放大器和滤波电路组成对心电信号进行放大和处理。AD采样器集成于ARM主芯片中。采样得到的数据通过SPI接口存储在FLASH芯片中。血压测量模块采集脉搏波形並对此进行分析与处理，得到的血压数据通过UART传输给ARM主芯片。The ECG detection module circuit is composed of an instrument amplifier and a filter circuit to amplify and process ECG signals. The AD sampler is integrated in the ARM main chip. The sampled data is stored in the FLASH chip through the SPI interface. The blood pressure measurement module collects the pulse waveform and analyzes and processes it, and the obtained blood pressure data is transmitted to the ARM main chip through UART.
如图11所示，为本发明的软件控制算法流程图，具体而言，包括以下步骤：As shown in Figure 11, it is a software control algorithm flow chart of the present invention, specifically, comprising the following steps:
1)系统初始化；1) System initialization;
2)控制WiFi模块连接网络；2) Control the WiFi module to connect to the network;
3)接收按键信号；3) Receive the button signal;
4)若接收到的按键信号为心电测量信号，则发送启动信号至模数转换模块，模数转换模块发送信号启动心电测量模块，并接收心电测量模块采集的经过模数转换模块处理后的数据，进行步骤7)；若接收到的按键信号为血压测量信号，则发送启动信号至血压测量模块，并接收血压测量模块发送的数据，进行步骤7)；若接收到的按键信号为心电血压测量信号，这发送启动信号至模数转换模块，模数转换模块发送信号启动心电测量模块，并接收心电测量模块采集的经过模数转换模块处理后的数据，发送启动信号至血压测量模块，并接收血压测量模块发送的数据，进行步骤7)；若接收到的按键信号为读取心电血压结果数据，进行步骤5)；若未接收到按键信号，返回步骤3)；4) If the received button signal is an ECG measurement signal, then send a start signal to the analog-to-digital conversion module, and the analog-to-digital conversion module sends a signal to start the ECG measurement module, and receives the data collected by the ECG measurement module and processed by the analog-to-digital conversion module After the data, proceed to step 7); if the received button signal is a blood pressure measurement signal, then send a start signal to the blood pressure measurement module, and receive the data sent by the blood pressure measurement module, and proceed to step 7); if the received button signal is ECG blood pressure measurement signal, which sends a start signal to the analog-to-digital conversion module, and the analog-to-digital conversion module sends a signal to start the ECG measurement module, and receives the data collected by the ECG measurement module after processing by the analog-to-digital conversion module, and sends the start signal to Blood pressure measurement module, and receive the data that blood pressure measurement module sends, carry out step 7); If the button signal received is to read ECG blood pressure result data, carry out step 5); If do not receive button signal, return to step 3);
5)读取数据存储单元中的数据，并处理后显示在所述液晶显示屏上；5) read the data in the data storage unit, and display it on the liquid crystal display after processing;
6)检测数据是否已经全部被读取，若未被全部读取，运行步骤5)，若已经6) Check whether all the data has been read, if not all read, run step 5), if already
全部被读取，运行步骤11)；All are read, run step 11);
7)处理读取到的数据，并显示在所述液晶显示屏上；7) process the read data and display it on the liquid crystal display;
8)检测测量模块是否均已完成测量，若未完成，则运行步骤7)；若测量均已完成，则输出最终结果，并运行步骤9)；8) Check whether the measurement modules have all completed the measurement, if not completed, then run step 7); if the measurement has been completed, then output the final result, and run step 9);
9)输出最终结果并存储至数据存储单元；9) output the final result and store it in the data storage unit;
10)检测是否已经连接至网络服务器，若已经连接至网络服务器，则将最终结果床送至网络服务器，并运行步骤11)；若未连接至网络服务器，直接运行步骤11)；10) Detect whether connected to the network server, if connected to the network server, then send the final result to the network server, and run step 11); if not connected to the network server, directly run step 11);
11)结束。11) End.
如图12所示为本实施例的腕式心电检测装置与使用常规心电检测装置对同一使用者进行测量的心电波形，可以发现本实施例的腕式心电监测装置与常规心电检测装置测得的结果几乎完全一致。As shown in Figure 12, the wrist-type ECG detection device of this embodiment and the ECG waveform measured by the same user using a conventional ECG detection device can be found that the wrist-type ECG monitoring device of this embodiment and the conventional ECG waveform The results measured by the detection device were almost identical.
如图13所示为本发明的腕式心电检测装置显示屏显示的图形，实现了采用心电波形、脉搏波形和心率、血压值同时被检测与显示的设计理念，便于患者使用和医生观察。As shown in Figure 13, the graphics displayed on the display screen of the wrist-type ECG detection device of the present invention realize the design concept that the ECG waveform, pulse waveform, heart rate, and blood pressure values are simultaneously detected and displayed, which is convenient for patients to use and doctors to observe .
如上所述，尽管参照特定的优选实施例已经表示和表述了本发明，但其不得解释为对本发明自身的限制。在不脱离所附权利要求定义的本发明的精神和范围前提下，可对其在形式上和细节上作出各种变化。As stated above, while the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
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| CN201410412564.6ACN104188651B (en) | 2014-08-20 | 2014-08-20 | Electrocardiograph monitoring device and its control method |
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| CN201410412564.6ACN104188651B (en) | 2014-08-20 | 2014-08-20 | Electrocardiograph monitoring device and its control method |
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