Electrocardiogram acquisition and wireless transmission real-time system based on low-power-consumption Bluetooth

Abstract

The utility model provides an electrocardio acquisition wireless transmission real-time system based on low-power-consumption Bluetooth, which comprises a power supply module electrically connected with an electrocardio signal acquisition unit, a processor module and a posture acquisition unit respectively and used for providing stable power for the electrocardio signal acquisition unit, the processor module and the posture acquisition unit. The electrocardiosignal acquisition unit is used for acquiring electrocardiosignals of a person to be diagnosed, the posture acquisition unit is used for acquiring limb acceleration electric signals of the person to be diagnosed, data are transmitted to the processor module, and the Bluetooth module is used for modulating and transmitting the data to the mobile terminal, so that the mobile terminal can watch and store the monitoring data. Meanwhile, a control signal can be sent through the mobile terminal, the control signal is demodulated through the Bluetooth module to generate a control electric signal, and the control electric signal is transmitted to the processor module to be processed, so that the posture acquisition unit and the electrocardiosignal acquisition unit are remotely controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of signal acquisition, in particular to a real-time system for wireless transmission of electrocardiogram acquisition based on low-power Bluetooth. Background Art

[0002] Heart disease is still one of the major diseases that threaten human life. ECG monitors are widely used to evaluate patients' heart function. ECG signals are one of the earliest biosignals studied and used in clinical medicine. They are easier to detect than other bioelectric signals and have more intuitive regularity.

[0003] After collecting ECG signals, general ECG monitors will directly exchange and store data with the computer through the serial port. The monitoring data can only be viewed on the computer, which is inconvenient. At the same time, general heart disease patients will have various sudden onset characteristics, causing the patient to suddenly fall or fall sideways. These sudden behaviors require doctors to monitor or observe on the spot, which is a waste of manpower.

[0004] The Chinese utility model patent with patent number CN202021517946.2 discloses a Bluetooth-based electrocardiograph, which relates to the technical field of electrocardiographs, including a front cover and a back cover, and the front cover and the back cover are connected by snapping, a main board is provided on the inner side of the front cover, and an MCU processor, a sensor, a filter circuit board, an amplifier circuit board and an A / D converter are installed on the main board respectively, a partition is provided at the center between the front cover and the back cover, and a battery and a Bluetooth slave are provided on the back of the partition, a panel is embedded on the surface of the front cover, and the panel and the front cover are connected by snapping, and buttons, display windows and acquisition heads are provided on the surface of the panel respectively, and the A / D converter, MCU processor, filter circuit board, amplifier circuit board and sensor are connected in series in sequence. Compared with the existing electrocardiograph, it has the advantages of small size, easy to carry, charge and use, and can transmit the detection data in real time through Bluetooth, and the transmission signal is relatively stable, which greatly facilitates the use of elderly patients with limited mobility. It only monitors the electrocardiograph of the patient, but does not monitor the patient's limbs, and the monitoring is not comprehensive. Utility Model Content

[0005] The purpose of the utility model is to provide a real-time system for wireless transmission of electrocardiogram collection based on low-power Bluetooth to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The real-time system for wireless transmission of ECG data based on low-power Bluetooth includes:

[0008] A power module, the power module is electrically connected to the ECG signal acquisition unit, the processor module, and the posture acquisition unit, respectively, and is used to provide power to the ECG signal acquisition unit, the processor module, and the posture acquisition unit;

[0009] An ECG signal acquisition unit, which is electrically connected to the processor and is used to acquire ECG signals and send the ECG signals to the processor module;

[0010] A posture acquisition unit, the posture acquisition unit is electrically connected to the processor module, and is used to collect acceleration signals of the limbs and send the acceleration signals to the processor module;

[0011] A processor module, the processor module is electrically connected to the Bluetooth module, and is used to process the received ECG signals and limb acceleration signals, and send the data to the Bluetooth module;

[0012] A Bluetooth module, which is used to receive the electrocardiogram signal and the acceleration signal of the limbs processed by the processor module and transmit the data to the mobile terminal or receive the control command of the computer;

[0013] The mobile terminal is connected to the Bluetooth module signal and is used to receive data transmitted by the Bluetooth module.

[0014] In one embodiment, the Bluetooth module includes a wireless transceiver, a baseband controller, a microprocessor, and a serial unit connected in series, which are respectively used to send / receive electromagnetic wave signals and modulate / demodulate electromagnetic wave signals, control the wireless transceiver, process pre-modulated signals / demodulated signals, and exchange data with a computer.

[0015] In one embodiment, the power module includes a low-voltage difference linear regulator and a power management chip connected in series, the low-voltage difference linear regulator is electrically connected to the electrocardiogram signal acquisition unit, the posture acquisition unit, and the processor module, respectively, the low-voltage difference linear regulator is used to output a stable voltage, and the power management chip is used to control an external power supply to charge the processor module, the posture acquisition unit, and the electrocardiogram signal acquisition unit.

[0016] In one of the embodiments, the ECG signal acquisition unit uses electrodes to acquire the ECG signal of the person to be diagnosed.

[0017] In one of the embodiments, the posture acquisition unit uses a three-axis acceleration sensor to acquire limb acceleration electrical signals of the person to be diagnosed.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model collects the electrocardiogram (ECG) signal of the person to be diagnosed through the ECG signal collection unit, collects the limb acceleration electric signal of the person to be diagnosed through the posture collection unit, transmits the data to the processor module, modulates and sends the data to the mobile terminal through the Bluetooth module, so that the mobile terminal can view and store the monitoring data, and there is no need to send the data to the server, and the mobile terminal can view the monitoring data without going through the Internet. The utility model is easy to use, and the medical staff can observe the limb acceleration signal of the person to be diagnosed through the mobile terminal to determine whether the person has fallen, and can help and rescue the patient in the first time. At the same time, the control signal can be sent through the mobile terminal, and the control signal is demodulated by the Bluetooth module to generate a control electric signal, and transmitted to the processor module for processing, so as to remotely control the posture collection unit and the ECG signal collection unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a module diagram of the utility model;

[0021] Figure 2 This is a module diagram of the Bluetooth module of the utility model;

[0022] Figure 3 This is a module diagram of the ECG signal acquisition unit of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0026] The real-time system for wireless transmission of ECG data based on low-power Bluetooth includes:

[0027] In order to supply stable power to the utility model, a power supply module is provided, including a low-voltage difference linear regulator and a power management chip connected in series. The low-voltage difference linear regulator is electrically connected to the electrocardiogram signal acquisition unit, the posture acquisition unit, and the processor module respectively. The power management chip is used to control the low-voltage difference linear regulator to distribute voltage charging to the processor module, the posture acquisition unit, and the electrocardiogram signal acquisition unit from an external power supply. The utility model is also provided with a rechargeable battery, which is electrically connected to the low-voltage difference linear regulator and can provide power for the utility model. The model of the low-voltage difference linear regulator is RT9068, which is used to output a stable voltage. The model of the power management chip is LMG3410R050.

[0028] In order to monitor the ECG signal of the person to be diagnosed, an ECG signal acquisition unit is provided. The ECG signal acquisition unit is electrically connected to the processor module. The ECG signal acquisition unit can acquire the analog ECG signal of the person to be diagnosed and convert the ECG signal into a digital ECG signal. The ECG signal acquisition unit uses an electrode sheet to acquire the analog ECG signal of the person to be diagnosed. When in use, the electrode sheet is attached to the body part of the person to be diagnosed, receives the changes in the patient's heart rate parameters, generates an analog ECG signal, and converts it into a digital ECG signal through the electrically connected AD7938BSUZ-REEL7 analog-to-digital converter.

[0029] In order to dynamically obtain the limb acceleration information of the person to be diagnosed, a posture acquisition unit is provided, which is electrically connected to the processor module and is used to collect the limb acceleration analog electrical signal of the person to be diagnosed and convert the limb acceleration analog electrical signal into a limb acceleration digital electrical signal; the posture acquisition unit uses a three-axis acceleration sensor of model BMA253 to collect the limb acceleration analog electrical signal of the person to be diagnosed, and an AD7938BSUZ-REEL7 analog-to-digital converter is connected in series between the three-axis acceleration sensor and the processor module, which can convert the limb acceleration analog electrical signal into a limb acceleration digital electrical signal, and the person to be detected is detected by the collected electrical signal to determine whether the human body falls. During implementation, the three-axis acceleration sensor is attached to the limb of the person to be diagnosed. When the limb of the person to be diagnosed produces a behavioral action, the three-axis acceleration sensor synchronously generates a limb acceleration analog electrical signal, and the analog-to-digital converter converts the limb acceleration analog electrical signal into a limb acceleration digital electrical signal, which is received and processed by the processor module.

[0030] The processor module is electrically connected to the Bluetooth module. The model of the processor module is AT91SAM9260B-QUARM microcontroller, which can process the received digital electrocardiogram signals and digital acceleration electrical signals of the limbs and send the data to the Bluetooth module.

[0031] In order to upload the collected data to a mobile terminal or a computer terminal, a Bluetooth module is provided. The Bluetooth module is used to receive the digital electrocardiogram signals and digital electrical signals of limb acceleration processed by the processor module and transmit the data to the mobile terminal or receive the control command of the computer. The Bluetooth module includes a wireless transceiver, a baseband controller, a microprocessor, and a serial unit connected in series in sequence. The microprocessor of the Bluetooth module is electrically connected to the processor module. The wireless transceiver is used to send / receive electromagnetic wave signals and modulate / demodulate the electromagnetic wave signals. The wireless transceiver is a short-range microwave frequency radio frequency transceiver operating in the 2.4-2.5GHz ISM frequency band, model PBA31301. The baseband controller controls the wireless transceiver and is responsible for processing the underlying link layer function, model MT1020. The microprocessor processes the pre-modulated signal / demodulated signal, model AT89C51 single-chip microcomputer. The serial unit is used to exchange data with the computer. The serial unit is a UART universal asynchronous receiver / transmitter, which provides an interface for exchanging data with the computer. During operation, the analog electrical signal of limb acceleration received and processed by the processor module is converted into a digital electrical signal of limb acceleration and sent to the microprocessor of the Bluetooth module. After processing, the frequency modulation sequence is selected through the baseband controller, and then modulated into an electromagnetic wave signal through the wireless transceiver and sent out. The mobile terminal receives the signal to realize data playback and storage. At the same time, the mobile terminal can send a control signal, which is received by the wireless transceiver and demodulated into a control electrical signal, which is sent to the microprocessor through the baseband controller and then transmitted to the processor module. The control electrical signal is processed by the processor module and then sent to the ECG signal acquisition unit and the posture acquisition unit respectively to control the ECG signal acquisition unit and the posture acquisition unit. The control signal includes a start test command, a stop test command, a stop data transmission command, etc.

[0032] In order to realize data playback and storage, a mobile terminal is provided. The mobile terminal is connected to the Bluetooth module signal and is used to receive data transmitted by the Bluetooth module. The mobile terminal can use a mobile phone or other device with built-in Bluetooth to remotely receive data transmitted by the Bluetooth module. The mobile terminal has a built-in Bluetooth receiving and transmitting module, which can receive electromagnetic wave signals transmitted by the Bluetooth module or transmit electromagnetic wave signals that can be received by the Bluetooth module.

[0033] The use principle of the utility model is as follows: the power supply module outputs a stable voltage, controls and distributes an external power supply to provide power to the processor module, the posture acquisition unit, and the electrocardiogram signal acquisition unit; by attaching electrode sheets to the body parts of the person to be diagnosed, the changes in the patient's heart rate parameters are collected, and an analog electrocardiogram signal is generated, and the analog electrocardiogram signal is converted into a digital electrocardiogram signal through an electrically connected AD7938BSUZ-REEL7 analog-to-digital converter; the posture acquisition unit adopts a three-axis acceleration sensor with a model of BMA253 to collect the limb acceleration analog electric signal of the person to be diagnosed; an AD7938BSUZ-REEL7 analog-to-digital converter is connected in series between the three-axis acceleration sensor and the processor module, and the limb acceleration analog electric signal can be converted into a limb acceleration digital electric signal; the collected digital electrocardiogram signal and limb acceleration digital electric signal are sent to the processor module, and uploaded to the mobile terminal through the Bluetooth module, so that the mobile terminal can view these monitoring data; at the same time, the mobile terminal can send a control signal, and the control signal is demodulated by the Bluetooth module to generate a control electric signal, and the control electric signal is transmitted to the processor module for processing, thereby remotely controlling the posture acquisition unit and the electrocardiogram signal acquisition unit.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Real-time system for wireless transmission of ECG data based on low-power Bluetooth, characterized by: include: A power module, the power module is electrically connected to the ECG signal acquisition unit, the processor module, and the posture acquisition unit, respectively, and is used to provide power to the ECG signal acquisition unit, the processor module, and the posture acquisition unit; An ECG signal acquisition unit, which is electrically connected to the processor module and is used to acquire ECG signals and send the ECG signals to the processor module; A posture acquisition unit, the posture acquisition unit is electrically connected to the processor module, and is used to acquire acceleration signals of the limbs and send the acceleration signals to the processor module; A processor module, the processor module is electrically connected to the Bluetooth module, and is used to process the received ECG signals and limb acceleration signals, and send the data to the Bluetooth module; A Bluetooth module, which is used to receive the electrocardiogram signal and the acceleration signal of the limbs processed by the processor module and transmit the data to the mobile terminal or receive the control command of the computer; The mobile terminal is connected to the Bluetooth module signal and is used to receive data transmitted by the Bluetooth module.

2. According to the low-power Bluetooth-based real-time ECG acquisition and wireless transmission system of claim 1, it is characterized by: The Bluetooth module includes a wireless transceiver, a baseband controller, a microprocessor, and a serial unit connected in series, which are respectively used to send / receive electromagnetic wave signals and modulate / demodulate electromagnetic wave signals, control the wireless transceiver, process pre-modulated signals / demodulated signals, and exchange data with a computer.

3. The real-time system for wireless transmission of ECG data acquisition based on low-power Bluetooth according to claim 1 is characterized by: The power module includes a low-voltage difference linear regulator and a power management chip connected in series. The low-voltage difference linear regulator is electrically connected to the electrocardiogram signal acquisition unit, the posture acquisition unit, and the processor module respectively. The low-voltage difference linear regulator is used to output a stable voltage, and the power management chip is used to control an external power supply to charge the processor module, the posture acquisition unit, and the electrocardiogram signal acquisition unit.

4. The real-time system for wireless transmission of ECG data acquisition based on low-power Bluetooth according to claim 1 is characterized in that: The electrocardiogram signal acquisition unit uses electrodes to acquire the electrocardiogram signal of the person to be diagnosed.

5. The real-time system for wireless transmission of ECG data acquisition based on low-power Bluetooth according to claim 1 is characterized in that: The posture acquisition unit uses a three-axis acceleration sensor to acquire the limb acceleration electrical signal of the person to be diagnosed.

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