技术领域technical field
本发明涉及人体通信技术领域，尤其涉及一种基于电感耦合的人体植入式通信方法和系统。The invention relates to the technical field of human body communication, in particular to a human body implantable communication method and system based on inductive coupling.
背景技术Background technique
现有的基于健康服务的人体通信系统，包括若干可分布于人体内及体外的各部分的节点，节点包括具有远程通信功能的设置在人体内部的植入式电子设备，及设置在人体外部的服务终端。服务终端和植入式电子设备之间经由网络建立连接，节点获得的信息在人体进行传播后经由电子设备传送至服务终端，服务终端发送的信息经网络和个人电子设备传播后传送至人体节点。The existing human body communication system based on health services includes a number of nodes that can be distributed in various parts of the human body and outside the body. The nodes include implantable electronic devices with remote communication functions installed inside the human body, and external service terminal. The connection between the service terminal and the implanted electronic device is established through the network, the information obtained by the node is transmitted to the service terminal through the electronic device after being propagated in the human body, and the information sent by the service terminal is transmitted to the human body node after being transmitted through the network and personal electronic device.
目前，上述人体通信系统中的服务终端和植入式电子设备采用蓝牙、WiFi或者短距离、低功耗的Zigbee通信技术进行无线通信。其中，蓝牙和短距离、低功耗的Zigbee通信系统的通信距离比较远，容易在不同的人体间造成覆盖区域重叠，降低了系统安全性；蓝牙和WiFi的功耗高，而Zigbee的数据率太低，且组网不容易。因此，现有的人体通信系统采用上述蓝牙、WiFi或者短距离、低功耗的Zigbee通信技术，造成了人体通信系统中最看重的功耗、安全性、通信健壮性等性能大打折扣。因此，开发一种安全、高效、可靠的人体通信系统是一个亟待解决的问题。At present, the service terminals and implanted electronic devices in the above human body communication system use Bluetooth, WiFi or Zigbee communication technology with short distance and low power consumption for wireless communication. Among them, the communication distance between Bluetooth and short-distance, low-power Zigbee communication system is relatively long, and it is easy to cause overlapping coverage areas between different human bodies, which reduces system security; Bluetooth and WiFi have high power consumption, while Zigbee's data rate Too low, and networking is not easy. Therefore, the existing human body communication system adopts the above-mentioned Bluetooth, WiFi or short-distance, low-power Zigbee communication technology, which greatly reduces the most important performance in the human body communication system, such as power consumption, security, and communication robustness. Therefore, developing a safe, efficient, and reliable human body communication system is an urgent problem to be solved.
发明内容Contents of the invention
本发明的实施例提供了一种基于电感耦合的人体植入式通信方法和系统，以实现安全、高效、可靠的人体通信系统。Embodiments of the present invention provide a human body implantable communication method and system based on inductive coupling, so as to realize a safe, efficient and reliable human body communication system.
本发明提供了如下方案：The present invention provides following scheme:
一种基于电感耦合的人体植入式通信方法，包括：A human implantable communication method based on inductive coupling, comprising:
在人体内部设置植入式电子设备，该植入式电子设备包括：变换器、信号调制器和信号发射器，所述变换器将需要发送的信息变换为电信号，所述信号调制器对所述电信号进行调制处理得到载波信号，所述信号发射器将所述载波信号变换成电磁波，将所述电磁波向人体外面发射。An implanted electronic device is set inside the human body, and the implanted electronic device includes: a converter, a signal modulator and a signal transmitter, the converter transforms the information to be sent into an electrical signal, and the signal modulator The electrical signal is modulated to obtain a carrier signal, and the signal transmitter converts the carrier signal into an electromagnetic wave, and transmits the electromagnetic wave to the outside of the human body.
所述的方法还包括：The method also includes:
所述信号调制器和信号发射器通过信号发射电路来实现，所述信号发射电路包括ASK调制电路、功率放大器和发射线圈，通过调整所述功率放大器的频率来调整所述发射线圈的发射功率。The signal modulator and the signal transmitter are realized by a signal transmitting circuit, and the signal transmitting circuit includes an ASK modulation circuit, a power amplifier and a transmitting coil, and the transmitting power of the transmitting coil is adjusted by adjusting the frequency of the power amplifier.
所述的方法还包括：The method also includes:
在人体外部设置服务终端，该服务终端包括：换能器、解调器和信号接收器，所述信号接收器通过电磁感应接收所述信号发射器发射的所述电磁波，将所述电磁波转换为载波信号，所述解调器对所述载波信号进行解调处理得到电信号，所述换能器将所述电信号变换为信息。A service terminal is set outside the human body, and the service terminal includes: a transducer, a demodulator and a signal receiver, the signal receiver receives the electromagnetic wave emitted by the signal transmitter through electromagnetic induction, and converts the electromagnetic wave into A carrier signal, the demodulator demodulates the carrier signal to obtain an electrical signal, and the transducer converts the electrical signal into information.
所述解调器和信号接收器通过信号接收电路实现，所述信号接收电路包括整流电路、滤波电路、接收线圈、串联谐振电路、解调器和负载，所述整流电路、滤波电路、接收线圈、串联谐振电路和负载互相串联，所述整流电路包括双二极管整流器。The demodulator and signal receiver are realized by a signal receiving circuit, and the signal receiving circuit includes a rectifying circuit, a filter circuit, a receiving coil, a series resonant circuit, a demodulator and a load, and the rectifying circuit, a filtering circuit, a receiving coil , the series resonance circuit and the load are connected in series, and the rectification circuit includes a double diode rectifier.
所述解调器包括解调电路和时钟恢复电路，所述解调电路包括幅值分压器、MOS管、检波器三极管、被动带通滤波器和迟滞比较器，所述幅值分压器设置在所述解调电路的输入端，由两个电容串联而成，所述检波器三极管、被动带通滤波器和迟滞比较器互相串联。The demodulator includes a demodulation circuit and a clock recovery circuit, and the demodulation circuit includes an amplitude voltage divider, a MOS tube, a detector triode, a passive bandpass filter and a hysteresis comparator, and the amplitude voltage divider It is arranged at the input end of the demodulation circuit and is composed of two capacitors connected in series, and the detector triode, the passive band-pass filter and the hysteresis comparator are connected in series.
一种基于电感耦合的人体植入式通信系统，包括：A human implantable communication system based on inductive coupling, comprising:
植入式电子设备，用于设置在人体内部，包括：变换器、信号调制器和信号发射器，所述变换器将需要发送的信息变换为电信号，所述信号调制器对所述电信号进行调制处理得到载波信号，所述信号发射器将所述载波信号变换成电磁波，将所述电磁波向人体外面发射。Implantable electronic equipment, used to be installed inside the human body, includes: a converter, a signal modulator and a signal transmitter, the converter converts the information to be sent into an electrical signal, and the signal modulator converts the electrical signal The carrier signal is obtained through modulation processing, and the signal transmitter converts the carrier signal into an electromagnetic wave, and transmits the electromagnetic wave to the outside of the human body.
所述的信号调制器和信号发射器通过信号发射电路来实现，所述信号发射电路包括ASK调制电路、功率放大器和发射线圈，通过调整所述功率放大器的频率来调整所述发射线圈的发射功率。The signal modulator and the signal transmitter are realized by a signal transmitting circuit, the signal transmitting circuit includes an ASK modulation circuit, a power amplifier and a transmitting coil, and the transmitting power of the transmitting coil is adjusted by adjusting the frequency of the power amplifier .
所述的系统还包括：The system also includes:
服务终端，用于设置在人体外部，服务终端包括：换能器、解调器和信号接收器，所述信号接收器通过电磁感应接收所述信号发射器发射的所述电磁波，将所述电磁波转换为载波信号，所述解调器对所述载波信号进行解调处理得到电信号，所述换能器将所述电信号变换为信息。The service terminal is used to be arranged outside the human body. The service terminal includes: a transducer, a demodulator, and a signal receiver. The signal receiver receives the electromagnetic wave emitted by the signal transmitter through electromagnetic induction, and transmits the electromagnetic wave converted into a carrier signal, the demodulator demodulates the carrier signal to obtain an electrical signal, and the transducer converts the electrical signal into information.
所述解调器和信号接收器通过信号接收电路实现，所述信号接收电路包括整流电路、滤波电路、接收线圈、串联谐振电路、解调器和负载，所述整流电路、滤波电路、接收线圈、串联谐振电路和负载互相串联，所述整流电路包括双二极管整流器，所述信号接收电路中的接收线圈和信号发射电路中的发射线圈发生电感耦合。The demodulator and signal receiver are realized by a signal receiving circuit, and the signal receiving circuit includes a rectifying circuit, a filter circuit, a receiving coil, a series resonant circuit, a demodulator and a load, and the rectifying circuit, a filtering circuit, a receiving coil , the series resonance circuit and the load are connected in series, the rectification circuit includes a double diode rectifier, and the receiving coil in the signal receiving circuit and the transmitting coil in the signal transmitting circuit are inductively coupled.
所述解调器包括解调电路和时钟恢复电路，所述解调电路包括幅值分压器、MOS管、检波器三极管、被动带通滤波器和迟滞比较器，所述幅值分压器设置在所述解调电路的输入端，由两个电容串联而成，所述检波器三极管、被动带通滤波器和迟滞比较器互相串联。The demodulator includes a demodulation circuit and a clock recovery circuit, and the demodulation circuit includes an amplitude voltage divider, a MOS tube, a detector triode, a passive bandpass filter and a hysteresis comparator, and the amplitude voltage divider It is arranged at the input end of the demodulation circuit and is composed of two capacitors connected in series, and the detector triode, the passive band-pass filter and the hysteresis comparator are connected in series.
由上述本发明的实施例提供的技术方案可以看出，本发明实施例通过接收线圈和发射线圈发生电感耦合，在植入式电子设备和服务终端之间通过电磁波来传输信息，使得通信范围局限于人体近端通信，不会在不同的人体间造成覆盖区域重叠，具有高安全性及高频带利用率，同时具有功耗低及无阴影效应等优点，从而提供了一种安全、高效、可靠的人体通信系统。It can be seen from the technical solutions provided by the above-mentioned embodiments of the present invention that in the embodiments of the present invention, the receiving coil and the transmitting coil are inductively coupled, and information is transmitted between the implanted electronic device and the service terminal through electromagnetic waves, so that the communication range is limited. Communication at the near end of the human body will not cause overlapping coverage areas between different human bodies, has high security and high frequency band utilization, and has the advantages of low power consumption and no shadow effect, thus providing a safe, efficient, Reliable body communication system.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.
图1为本发明实施例一提供的一种基于电感耦合的人体植入式通信方法的处理流程图；FIG. 1 is a processing flowchart of a human body implantable communication method based on inductive coupling provided in Embodiment 1 of the present invention;
图2为本发明实施例一提供的一种信号发射电路的部分电路结构图；FIG. 2 is a partial circuit structure diagram of a signal transmitting circuit provided in Embodiment 1 of the present invention;
图3为本发明实施例一提供的一种信号接收电路的部分电路结构图；FIG. 3 is a partial circuit structure diagram of a signal receiving circuit provided in Embodiment 1 of the present invention;
图4为本发明实施例一提供的一种解调器的部分电路结构示意图；FIG. 4 is a schematic diagram of a partial circuit structure of a demodulator provided in Embodiment 1 of the present invention;
图5为本发明实施例二提供的一种基于电感耦合的人体植入式通信系统，的具体结构图。FIG. 5 is a specific structural diagram of an inductive coupling-based human body implantable communication system provided by Embodiment 2 of the present invention.
具体实施方式detailed description
为便于对本发明实施例的理解，下面将结合附图以几个具体实施例为例做进一步的解释说明，且各个实施例并不构成对本发明实施例的限定。In order to facilitate the understanding of the embodiments of the present invention, several specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.
实施例一Embodiment one
该实施例提供的一种基于电感耦合的人体植入式通信方法的处理流程如图1所示，包括如下的处理步骤：The processing flow of a human body implantable communication method based on inductive coupling provided in this embodiment is shown in Figure 1, including the following processing steps:
步骤S110、在人体内部设置植入式电子设备，该植入式电子设备包括：变换器、信号调制器和信号发射器。Step S110, setting an implanted electronic device inside the human body, the implanted electronic device includes: a converter, a signal modulator and a signal transmitter.
ASK（AmplitudeShiftKeying，振幅键控）是一种相对简单的调制方式。ASK相当于模拟信号中的调幅，ASK调制把频率、相位作为常量，而把振幅作为变量，信息比特是通过载波的幅度来传递的。ASK发射和接收到的是幅度数字调制的载波信号，可获取接收电路所需的时钟。ASK (AmplitudeShiftKeying, amplitude keying) is a relatively simple modulation method. ASK is equivalent to amplitude modulation in analog signals. ASK modulation uses frequency and phase as constants, and amplitude as a variable. Information bits are transmitted through the amplitude of the carrier. What ASK transmits and receives is the carrier signal of amplitude digital modulation, which can obtain the clock required by the receiving circuit.
所述信号调制器和信号发射器通过信号发射电路来实现，该实施例提供的一种信号发射电路的部分电路结构图如图2所示，信号发射电路包括ASK调制器、功率放大器和发射线圈，通过调整所述功率放大器的频率来调整所述发射线圈的发射功率。The signal modulator and the signal transmitter are realized by a signal transmitting circuit, a partial circuit structure diagram of a signal transmitting circuit provided by this embodiment is shown in Figure 2, and the signal transmitting circuit includes an ASK modulator, a power amplifier and a transmitting coil , adjusting the transmitting power of the transmitting coil by adjusting the frequency of the power amplifier.
上述信号发射电路，使用改变放大器频率响应的方法。这样就避免了耗散元件的使用，提高能量传输的效率。因为调制电路的结构以及频率响应固定，信号发射电路中的能量可由放大器供电进行控制。The above-mentioned signal transmitting circuit uses a method of changing the frequency response of the amplifier. This avoids the use of dissipative components and improves the efficiency of energy transfer. Because the structure of the modulation circuit and the frequency response are fixed, the energy in the signal transmitting circuit can be controlled by the power supply of the amplifier.
步骤S120、植入式电子设备中的变换器将需要发送的信息变换为电信号，上述信息可以为人体生理参数信息或者植入式电子设备的状态信息等。Step S120, the converter in the implanted electronic device converts the information to be sent into an electrical signal, and the above information can be human physiological parameter information or status information of the implanted electronic device.
变换器、信号调制器和信号发射器互相串联，以人体为通信介质进行通信。The converter, the signal modulator and the signal transmitter are connected in series, and the human body is used as the communication medium for communication.
信号发射电路中的ASK调制器对所述电信号进行ASK调制处理得到载波信号，所述信号发射器通过发射线圈将所述载波信号变换成电磁波，将所述电磁波向人体外面发射。The ASK modulator in the signal transmitting circuit performs ASK modulation processing on the electrical signal to obtain a carrier signal, and the signal transmitter converts the carrier signal into an electromagnetic wave through a transmitting coil, and transmits the electromagnetic wave to the outside of the human body.
电磁波从发射线圈辐射后，不仅电波的能量会扩散，接收机只能收到其中极小的一部分，而且在传播过程中，电波的能量会被地面、建筑物或高空的电离层吸收或反射；或在大气层中产生折射或散射，从而造成强度的衰减。After the electromagnetic wave is radiated from the transmitting coil, not only the energy of the radio wave will spread, but the receiver can only receive a very small part of it, and during the propagation process, the energy of the radio wave will be absorbed or reflected by the ground, buildings or high-altitude ionosphere; Or produce refraction or scattering in the atmosphere, resulting in attenuation of intensity.
步骤S130、在人体外部设置服务终端，该服务终端包括：换能器、解调器和信号接收器。Step S130, setting a service terminal outside the human body, the service terminal including: a transducer, a demodulator and a signal receiver.
所述解调器和信号接收器通过信号接收电路实现，该实施例提供的一种信号接收电路的部分电路结构示意图如图3所示，所述信号接收电路包括整流电路、滤波电路、接收线圈、串联谐振电路、解调器和负载，所述整流电路、滤波电路、接收线圈、串联谐振电路和负载互相串联。The demodulator and the signal receiver are implemented by a signal receiving circuit. A schematic diagram of a partial circuit structure of a signal receiving circuit provided in this embodiment is shown in FIG. 3 , and the signal receiving circuit includes a rectifier circuit, a filter circuit, and a receiving coil , a series resonant circuit, a demodulator and a load, wherein the rectifier circuit, filter circuit, receiving coil, series resonant circuit and load are connected in series.
图3所示的整流电路中包括双二极管整流器，整流电路中存在一个远大于调谐电容C1C2的串联电容C4，并不影响电路的谐振频率。在C4C5电容之间得到稳定的直流电压，加载到R1R2上。受二极管单向导电性的影响，使用双二极管整流器时流经二极管的电流呈尖峰状。上述信号接收电路中的线圈中的感生电流流过与线圈相串联的整流电路，每个二极管导通的时间比在并联结构电路中长，所有接收到的能量全部加载到负载上。同时，由于每个半周期中只有一个二极管导通，电路的开关损耗进一步降低。The rectification circuit shown in FIG. 3 includes a double-diode rectifier. There is a series capacitance C4 in the rectification circuit that is much larger than the tuning capacitance C1 C2 , which does not affect the resonant frequency of the circuit. A stable DC voltage is obtained between the C4C5 capacitors and loaded on R1R2. Affected by the unidirectional conductivity of the diodes, the current flowing through the diodes is spiked when using a dual diode rectifier. The induced current in the coil in the above-mentioned signal receiving circuit flows through the rectifier circuit connected in series with the coil, and the conduction time of each diode is longer than that in the parallel structure circuit, and all the received energy is loaded on the load. At the same time, since only one diode conducts in each half cycle, the switching loss of the circuit is further reduced.
在上述串联结构的信号接收电路中，负载、整流器和滤波器与谐振电路相串联，实现降低直流供电电压中的纹波，减小直流滤波器的带宽，从而线圈中的感应电压不会受到整流器的影响，信号的调制度也不会发生变化，使解调电路得到简化，数据传输率得到提高。In the signal receiving circuit with the above series structure, the load, the rectifier and the filter are connected in series with the resonant circuit to reduce the ripple in the DC supply voltage and reduce the bandwidth of the DC filter, so that the induced voltage in the coil will not be affected by the rectifier The influence of the signal modulation degree will not change, so that the demodulation circuit is simplified and the data transmission rate is improved.
该实施例提供的一种解调器的部分电路结构示意图如图4所示，所述解调器包括解调电路和时钟恢复电路，所述解调电路包括幅值分压器、MOS管、检波器三极管、被动带通滤波器和迟滞比较器，所述幅值分压器设置在所述解调电路的输入端，由两个电容串联而成，所述检波器三极管、被动带通滤波器和迟滞比较器互相串联。A partial circuit structure diagram of a demodulator provided in this embodiment is shown in FIG. 4, the demodulator includes a demodulation circuit and a clock recovery circuit, and the demodulation circuit includes an amplitude voltage divider, a MOS transistor, A detector triode, a passive bandpass filter and a hysteresis comparator, the amplitude voltage divider is arranged at the input end of the demodulation circuit and is formed by connecting two capacitors in series, the detector transistor, the passive bandpass filter The comparator and the hysteresis comparator are connected in series.
在图4所示的电路中，在解调器的输入端加入了一个分压器，用来限制输入电压的幅值。这个分压器由两个电容串联而成。两个电容的值均比较小，以减小解调器对谐振电路的影响。In the circuit shown in Figure 4, a voltage divider is added to the input of the demodulator to limit the amplitude of the input voltage. This voltage divider consists of two capacitors connected in series. The values of the two capacitors are relatively small to reduce the influence of the demodulator on the resonant circuit.
二极管接法的MOS管作为小信号的放大器或大信号的衰减器。电流流经MOS管时，电路起到两个效果：The diode-connected MOS tube is used as an amplifier for small signals or an attenuator for large signals. When the current flows through the MOS tube, the circuit has two effects:
（1）在电流较小时放大器可获得较高的压降；(1) The amplifier can obtain a higher voltage drop when the current is small;
（2）在电流较大时，衰减器产生的过大电压降被二极管钳制，保护电路的其他部分。(2) When the current is large, the excessive voltage drop generated by the attenuator is clamped by the diode to protect other parts of the circuit.
数据解调中一个用于恢复信号包络的检波器三极管MRec，完成信号调理和阻抗变换。整流得到的信号通过一个被动带通滤波器。这个滤波器的带宽由传输数据的频谱决定。滤波器输出再经过一个迟滞比较器后，将数据完全恢复。In data demodulation, a detector transistor MRec is used to restore the signal envelope, and complete signal conditioning and impedance transformation. The rectified signal passes through a passive bandpass filter. The bandwidth of this filter is determined by the frequency spectrum of the transmitted data. After the filter output passes through a hysteresis comparator, the data is fully recovered.
步骤S140、信号接收器通过电磁感应接收所述信号发射器发射的所述电磁波，将所述电磁波转换为载波信号，所述解调器对所述载波信号进行解调处理得到电信号，所述换能器将所述电信号变换为信息。Step S140, the signal receiver receives the electromagnetic wave emitted by the signal transmitter through electromagnetic induction, converts the electromagnetic wave into a carrier signal, and the demodulator demodulates the carrier signal to obtain an electrical signal, the A transducer transforms the electrical signal into information.
信号接收电路中的接收线圈和信号发射电路中的发射线圈发生电感耦合，形成磁场，该磁场传输上述发射线圈发射的电磁波。接收线圈通过电磁感应接收上述电磁波，将所述电磁波转换为载波信号。The receiving coil in the signal receiving circuit and the transmitting coil in the signal transmitting circuit are inductively coupled to form a magnetic field, and the magnetic field transmits the electromagnetic waves emitted by the transmitting coil. The receiving coil receives the above-mentioned electromagnetic wave through electromagnetic induction, and converts the electromagnetic wave into a carrier signal.
信号接收电路中的解调器对所述载波信号进行解调处理得到电信号，所述换能器将所述电信号变换为信息。The demodulator in the signal receiving circuit demodulates the carrier signal to obtain an electrical signal, and the transducer converts the electrical signal into information.
实现数据的高效无线传输是保证体外装置对植入式设备进行准确控制的关键。为了充分消除由同时传递能量产生的干扰，能量和数据的传输使用同一个电感耦合装置，同时设置相同的载波。Efficient wireless transmission of data is key to ensuring accurate control of implantable devices by external devices. In order to fully eliminate the interference caused by simultaneous energy transfer, the same inductive coupling device is used for energy and data transmission, and the same carrier is set at the same time.
实施例二Embodiment two
该实施例提供的一种基于电感耦合的人体植入式通信系统，其具体结构如图5所示，包括：This embodiment provides a human body implantable communication system based on inductive coupling, its specific structure is shown in Figure 5, including:
植入式电子设备，用于设置在人体内部，包括：变换器、信号调制器和信号发射器，所述变换器将需要发送的信息变换为电信号，所述信号调制器对所述电信号进行调制处理得到载波信号，所述信号发射器将所述载波信号变换成电磁波，将所述电磁波向人体外面发射。Implantable electronic equipment, used to be installed inside the human body, includes: a converter, a signal modulator and a signal transmitter, the converter converts the information to be sent into an electrical signal, and the signal modulator converts the electrical signal The carrier signal is obtained through modulation processing, and the signal transmitter converts the carrier signal into an electromagnetic wave, and transmits the electromagnetic wave to the outside of the human body.
服务终端，用于设置在人体外部，服务终端包括：换能器、解调器和信号接收器，所述信号接收器通过电磁感应接收所述信号发射器发射的所述电磁波，将所述电磁波转换为载波信号，所述解调器对所述载波信号进行解调处理得到电信号，所述换能器将所述电信号变换为信息。The service terminal is used to be arranged outside the human body. The service terminal includes: a transducer, a demodulator, and a signal receiver. The signal receiver receives the electromagnetic wave emitted by the signal transmitter through electromagnetic induction, and transmits the electromagnetic wave converted into a carrier signal, the demodulator demodulates the carrier signal to obtain an electrical signal, and the transducer converts the electrical signal into information.
进一步地，所述植入式电子设备中的信号调制器和信号发射器通过信号发射电路来实现，所述信号发射电路包括ASK调制电路、功率放大器和发射线圈，通过调整所述功率放大器的频率来调整所述发射线圈的发射功率。Further, the signal modulator and signal transmitter in the implantable electronic device are realized by a signal transmitting circuit, and the signal transmitting circuit includes an ASK modulation circuit, a power amplifier and a transmitting coil, and by adjusting the frequency of the power amplifier to adjust the transmitting power of the transmitting coil.
所述的系统还包括：The system also includes:
进一步地，所述服务终端中的解调器和信号接收器通过信号接收电路实现，所述信号接收电路包括整流电路、滤波电路、接收线圈、串联谐振电路、解调器和负载，所述整流电路、滤波电路、接收线圈、串联谐振电路和负载互相串联，所述整流电路包括双二极管整流器，所述信号接收电路中的接收线圈和信号发射电路中的发射线圈发生电感耦合。Further, the demodulator and signal receiver in the service terminal are realized by a signal receiving circuit, and the signal receiving circuit includes a rectifying circuit, a filter circuit, a receiving coil, a series resonant circuit, a demodulator and a load, and the rectifying The circuit, the filtering circuit, the receiving coil, the series resonant circuit and the load are connected in series, the rectifying circuit includes a double diode rectifier, and the receiving coil in the signal receiving circuit and the transmitting coil in the signal transmitting circuit are inductively coupled.
所述解调器包括解调电路和时钟恢复电路，所述解调电路包括幅值分压器、MOS管、检波器三极管、被动带通滤波器和迟滞比较器，所述幅值分压器设置在所述解调电路的输入端，由两个电容串联而成，所述检波器三极管、被动带通滤波器和迟滞比较器互相串联。The demodulator includes a demodulation circuit and a clock recovery circuit, and the demodulation circuit includes an amplitude voltage divider, a MOS tube, a detector triode, a passive bandpass filter and a hysteresis comparator, and the amplitude voltage divider It is arranged at the input end of the demodulation circuit and is composed of two capacitors connected in series, and the detector triode, the passive band-pass filter and the hysteresis comparator are connected in series.
用本发明实施例的系统进行基于电感耦合的人体植入式通信的具体过程与前述方法实施例类似，此处不再赘述。The specific process of using the system of the embodiment of the present invention to carry out the human body implantable communication based on inductive coupling is similar to the foregoing method embodiment, and will not be repeated here.
综上所述，本发明实施例通过接收线圈和发射线圈发生电感耦合，在植入式电子设备和服务终端之间通过电磁波来传输信息，使得通信范围局限于人体近端通信，不会在不同的人体间造成覆盖区域重叠，具有高安全性及高频带利用率，同时具有功耗低及无阴影效应等优点，从而提供了一种安全、高效、可靠的人体通信系统。In summary, the embodiment of the present invention uses inductive coupling between the receiving coil and the transmitting coil, and transmits information between the implanted electronic device and the service terminal through electromagnetic waves, so that the communication range is limited to the proximal communication of the human body, and will not The human body overlaps the coverage area, has high security and high frequency band utilization, and has the advantages of low power consumption and no shadow effect, thus providing a safe, efficient and reliable human body communication system.
本发明实施例利用串联结构的谐振接收电路实现充分减小整流器和滤波器对所接收信号的影响。In the embodiment of the present invention, the resonant receiving circuit with a series structure is used to fully reduce the influence of the rectifier and the filter on the received signal.
人体电子工程领域已成为新一代信息技术和生物技术的重要交叉领域，本发明实施例的研究将为家电产业与医疗电子产业的有机融合提供有益的探讨。The field of human electronics engineering has become an important intersecting field of the new generation of information technology and biotechnology, and the research of the embodiment of the present invention will provide useful discussions on the organic integration of the home appliance industry and the medical electronics industry.
本领域普通技术人员可以理解：附图只是一个实施例的示意图，附图中的模块或流程并不一定是实施本发明所必须的。Those skilled in the art can understand that the accompanying drawing is only a schematic diagram of an embodiment, and the modules or processes in the accompanying drawing are not necessarily necessary for implementing the present invention.
通过以上的实施方式的描述可知，本领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件平台的方式来实现。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）执行本发明各个实施例或者实施例的某些部分所述的方法。It can be seen from the above description of the implementation manners that those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in storage media, such as ROM/RAM, disk , CD, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments of the present invention.
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于装置或系统实施例而言，由于其基本相似于方法实施例，所以描述得比较简单，相关之处参见方法实施例的部分说明即可。以上所描述的装置及系统实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device or system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for relevant parts, refer to part of the description of the method embodiments. The device and system embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, It can be located in one place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without creative effort.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or modifications within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026927.2ACN104168042B (en) | 2014-01-20 | 2014-01-20 | Human body implantation type communication means and system based on inductance coupling high |
| Application Number | Priority Date | Filing Date | Title |
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| CN201410026927.2ACN104168042B (en) | 2014-01-20 | 2014-01-20 | Human body implantation type communication means and system based on inductance coupling high |
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| CN104168042A CN104168042A (en) | 2014-11-26 |
| CN104168042Btrue CN104168042B (en) | 2016-05-04 |
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| CN201410026927.2AActiveCN104168042B (en) | 2014-01-20 | 2014-01-20 | Human body implantation type communication means and system based on inductance coupling high |
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