阅读说明：本技术 一种慢性病管理系统 (Chronic disease management system ) 是由 郑晓彦 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种慢性病管理系统,包括用于收集患者信息的客户端和供医生监控患者状况的服务器,客户端和服务器之间通过无线通信模块连接,所述无线通信模块和服务器之间设有信号接收电路、差分补偿电路、滤波检测输出电路,信号接收电路接收无线通信模块收到频率信号,并将频率信号发送给差分补偿电路；所述差分补偿电路对频率信号进行差分放大补偿后将信号传输到滤波检测电路,滤波检测电路对信号进行滤波处理后传输到服务器。本发明可以有效的抑制温漂,在对信号进行检测补偿的同时有效提高了数据传输的准确性。(The invention discloses a chronic disease management system, which comprises a client for collecting patient information and a server for monitoring the patient condition by a doctor, wherein the client is connected with the server through a wireless communication module; the differential compensation circuit performs differential amplification compensation on the frequency signals and then transmits the signals to the filtering detection circuit, and the filtering detection circuit performs filtering processing on the signals and then transmits the signals to the server. The invention can effectively inhibit temperature drift, and effectively improve the accuracy of data transmission while detecting and compensating signals.)

1. A chronic disease management system comprises a client for collecting patient information and a server for monitoring the patient condition by a doctor, wherein the client and the server are connected through a wireless communication module; the differential compensation circuit performs differential amplification compensation on the frequency signals and then transmits the signals to the filtering detection circuit, and the filtering detection circuit performs filtering processing on the signals and then transmits the signals to the server.

2. The chronic disease management system of claim 1, wherein the signal receiving circuit comprises a buffer matcher and a signal converter, the buffer matcher forwards the received frequency signal to the signal converter, and the signal converter converts the frequency signal to a voltage signal and transmits the voltage signal to the differential compensation circuit.

3. The chronic disease management system of claim 2, wherein the buffer matcher comprises a capacitor C1, one end of the capacitor C1 is connected to the wireless communication module, the other end of the capacitor C1 is connected to one end of an inductor L1 and one end of a capacitor C2, and the other end of the capacitor C2 is connected to an anode of a diode D2 and a cathode of a diode D1; the cathode of the diode D2 is connected with one end of the resistor R1 and the base of the triode Q2, and the anode of the diode D1 is connected with one end of the resistor R2 and the base of the triode Q1; the emitting electrode of the triode Q2 is connected with the input end of the signal converter and the emitting electrode of the triode Q1, the collecting electrode of the triode Q1 and the other end of the resistor R2 are both connected with the power supply VCC, and the collecting electrode of the triode Q2, the other end of the resistor R1 and the other end of the inductor L1 are all grounded.

4. The chronic disease management system of claim 2, wherein the signal converter includes a capacitor C3, one end of the capacitor C3 is connected to the output terminal of the buffer matcher, the other end of the capacitor C3 is connected to the 6 th pin of the frequency-voltage conversion chip U1, the 5 th pin of the frequency-voltage conversion chip U1 is connected to one end of the capacitor C4 and one end of the resistor R3, the 7 th pin of the frequency-voltage conversion chip U1 is connected to one end of the resistor R4 and one end of the resistor R5, the 8 th pin of the frequency-voltage conversion chip U1, the other end of the resistor R3 and the other end of the resistor R4 are all connected to the power VCC, the 1 st pin of the frequency-voltage conversion chip U1 is connected to one end of the resistor R8, one end of the capacitor C5 and the input terminal of the differential compensation circuit, the 2 nd pin of the frequency-voltage conversion chip U1 is connected to one end of the resistor R6, the other end of the resistor R6 is connected to one end of the variable resistor R7, the 3 rd pin of the frequency-voltage conversion chip U1, the 4 th pin of the frequency-voltage conversion chip U1, the other end of the variable resistor R7, the other end of the resistor R8, the other end of the capacitor C5, the other end of the resistor R5 and the other end of the capacitor C4 are all grounded.

5. The chronic disease management system of claim 1, wherein the differential compensation circuit includes a resistor R9, one end of the resistor R9 is connected to the output terminal of the signal receiving circuit, the other end of the resistor R9 is connected to one end of a capacitor C6, and the other end of the capacitor C6 is connected to one end of a resistor R10, one end of a capacitor C7, and one end of a resistor R11; the other end of the resistor R11 is connected with one end of a resistor R12, the base of a triode Q3, one end of a resistor R13, one end of a resistor R24 and one end of a capacitor C9, the collector of a triode Q3 is connected with one end of a resistor R14, and the emitter of the triode Q3 is connected with the emitter of a triode Q4 and the collector of a triode Q6; an emitter of the triode Q6 is connected with one end of the resistor R16, a base of the triode Q6 is connected with one end of the resistor R18 and the anode of the diode D3, and the cathode of the diode D3 is connected with one end of the resistor R17; a collector of the triode Q4 is connected with one end of the resistor R15, one end of the resistor R19 and an input end of the filtering detection output circuit, and a base of the triode Q4 is connected with one end of the resistor R21 and one end of the resistor R22; the other end of the resistor R19 is connected with the base electrode of a triode Q5, the emitter electrode of the triode Q5 is connected with one end of a resistor R20, the collector electrode of the triode Q5 is connected with one end of a resistor R23 and one end of a capacitor C8, the other end of the resistor R23 is connected with the other end of the resistor R24 and one end of a capacitor C10, and the other end of the capacitor C8 is connected with one end of a resistor R25 and the other end of the capacitor C9; the other end of the resistor R14, the other end of the resistor R15, the other end of the resistor R21, the other end of the resistor R20 and the other end of the resistor R12 are all connected with a power supply VCC, and the other end of the resistor R17, the other end of the resistor R18, the other end of the resistor R13, the other end of the resistor R16, the other end of the resistor R25, the other end of the capacitor C10 and the other end of the resistor R22 are all grounded.

6. The chronic disease management system of claim 1, wherein the filtering detection output circuit comprises an amplification compensator and an output, an input of the amplification compensator is connected to an output of the differential compensation circuit, an output of the amplification compensator is connected to an input of the output, and an output of the output is connected to an input of the server.

7. The chronic disease management system of claim 6, wherein the amplification compensator includes a resistor R26, one end of the resistor R26 is connected to the output terminal of the differential compensation circuit, and the other end of the resistor R26 is connected to one end of the resistor R28, one end of a capacitor C12, and one end of a capacitor C11; the other end of the capacitor C12 is connected with one end of a resistor R29 and the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R31 and one end of a resistor R30, and the other end of the resistor R30 is connected with one end of a variable capacitor C13, one end of an inductor L2, the other end of a resistor R28 and the output end of the operational amplifier AR 1; the other end of the inductor L2 is connected with one end of a capacitor C14, the anode of a diode D7 and the output end of an output device, the cathode of a diode D7 is connected with one end of a resistor R32, the other end of a resistor R32 is connected with the base of a triode Q7, the collector of the triode Q7 is connected with one end of a resistor R26 through a resistor R36, the emitter of the triode Q7 is connected with one end of a resistor R33, the other end of the resistor R33 is connected with the cathode of a diode D4, and the anode of the diode D4 is connected with a power supply VCC; the other end of the capacitor C11, the other end of the resistor R29, the other end of the resistor R31, the other end of the variable capacitor C13 and the other end of the capacitor C14 are all grounded.

8. The chronic disease management system of claim 6, wherein the output device comprises a capacitor C15, one end of the capacitor C15 is connected to the output terminal of the amplification compensator, and the other end of the capacitor C15 is connected to the base of a transistor Q8; an emitter of the triode Q8 is connected with one end of the resistor R35, and a collector of the triode Q8 is connected with a cathode of the diode D6 and a base of the triode Q10; the anode of the diode D6 is connected with the cathode of the diode D5, and the anode of the diode D5 is connected with one end of the resistor R34 and the base of the triode Q9; the emitter of the triode Q9 and the other end of the resistor R34 are both connected with a power supply VCC, and the collector of the triode Q9 is connected with the emitter of the triode Q10 and the input end of the server; the other end of the resistor R35 and the collector of the triode Q10 are both grounded.

Technical Field

The invention belongs to the technical field of remote medical treatment, and particularly relates to a chronic disease management system.

Background

The chronic disease management system is a chronic disease monitoring guidance system comprising a household detector, a client and a server, wherein the household detector is used for detecting various physiological parameters of a patient, such as pulse, blood pressure, heart rate and the like, detected data are processed by the client and are wirelessly transmitted to the server, a doctor checks the condition of the patient at any time through the data received by the server and makes relevant guidance, and the management mode of leaving home without much brings great convenience to people.

With the development of the social medical and health informatization construction, the system is gradually applied to remote mountain areas, the problem that people in the mountain areas are inconvenient to see a doctor due to frequent trips caused by chronic diseases is well solved, but due to the natural environment problem of the mountain areas, signals transmitted wirelessly are extremely easy to be affected by various external factors, such as signal blockage or attenuation caused by barriers, serious signal loss or signal cancellation caused by multipath and the like, so that the accuracy of received data is affected seriously even if the wirelessly received signals are weak; meanwhile, the system is also unstable due to large day and night temperature difference and variable weather in the mountainous area, so that the use effect of the whole system is greatly reduced.

Disclosure of Invention

The invention provides a chronic disease management system, which aims at the technical problem that physiological parameter data are easy to generate attenuation and instability due to environmental problems when being transmitted in remote mountainous areas.

A chronic disease management system comprises a client for collecting patient information and a server for monitoring the patient condition by a doctor, wherein the client and the server are connected through a wireless communication module; the differential compensation circuit performs differential amplification compensation on the frequency signals and then transmits the signals to the filtering detection circuit, and the filtering detection circuit performs filtering processing on the signals and then transmits the signals to the server.

The signal receiving circuit comprises a buffer matcher and a signal converter, the buffer matcher forwards a received frequency signal to the signal converter, and the signal converter converts the frequency signal into a voltage signal and transmits the voltage signal to the differential compensation circuit.

The buffer matcher comprises a capacitor C1, one end of a capacitor C1 is connected with the wireless communication module, the other end of a capacitor C1 is connected with one end of an inductor L1 and one end of a capacitor C2, and the other end of a capacitor C2 is connected with the anode of a diode D2 and the cathode of a diode D1; the cathode of the diode D2 is connected with one end of the resistor R1 and the base of the triode Q2, and the anode of the diode D1 is connected with one end of the resistor R2 and the base of the triode Q1; the emitting electrode of the triode Q2 is connected with the input end of the signal converter and the emitting electrode of the triode Q1, the collecting electrode of the triode Q1 and the other end of the resistor R2 are both connected with the power supply VCC, and the collecting electrode of the triode Q2, the other end of the resistor R1 and the other end of the inductor L1 are all grounded.

The signal converter comprises a capacitor C3, one end of a capacitor C3 is connected with the output end of a buffer matcher, the other end of a capacitor C3 is connected with a pin 6 of a frequency-voltage conversion chip U1, a pin 5 of the frequency-voltage conversion chip U1 is connected with one end of a capacitor C4 and one end of a resistor R3, a pin 7 of the frequency-voltage conversion chip U1 is connected with one end of a resistor R4 and one end of a resistor R5, a pin 8 of the frequency-voltage conversion chip U1, the other end of a resistor R3 and the other end of the resistor R4 are all connected with a power supply VCC, a pin 1 of the frequency-voltage conversion chip U1 is connected with one end of a resistor R8, one end of a capacitor C5 and an input end of a differential compensation circuit, a pin 2 of the frequency-voltage conversion chip U1 is connected with one end of a resistor R6, the other end of a resistor R6 is connected with one end of a variable resistor R7, and a pin 3 of a frequency-voltage conversion chip U67 1, The 4 th pin of the frequency-voltage conversion chip U1, the other end of the variable resistor R7, the other end of the resistor R8, the other end of the capacitor C5, the other end of the resistor R5 and the other end of the capacitor C4 are all grounded.

The differential compensation circuit comprises a resistor R9, one end of a resistor R9 is connected with the output end of the signal receiving circuit, one end of a capacitor C6 at the other end of the resistor R9 is connected, and the other end of the capacitor C6 is connected with one end of a resistor R10, one end of a capacitor C7 and one end of a resistor R11; the other end of the resistor R11 is connected with one end of a resistor R12, the base of a triode Q3, one end of a resistor R13, one end of a resistor R24 and one end of a capacitor C9, the collector of a triode Q3 is connected with one end of a resistor R14, and the emitter of the triode Q3 is connected with the emitter of a triode Q4 and the collector of a triode Q6; an emitter of the triode Q6 is connected with one end of the resistor R16, a base of the triode Q6 is connected with one end of the resistor R18 and the anode of the diode D3, and the cathode of the diode D3 is connected with one end of the resistor R17; a collector of the triode Q4 is connected with one end of the resistor R15, one end of the resistor R19 and an input end of the filtering detection output circuit, and a base of the triode Q4 is connected with one end of the resistor R21 and one end of the resistor R22; the other end of the resistor R19 is connected with the base electrode of a triode Q5, the emitter electrode of the triode Q5 is connected with one end of a resistor R20, the collector electrode of the triode Q5 is connected with one end of a resistor R23 and one end of a capacitor C8, the other end of the resistor R23 is connected with the other end of the resistor R24 and one end of a capacitor C10, and the other end of the capacitor C8 is connected with one end of a resistor R25 and the other end of the capacitor C9; the other end of the resistor R14, the other end of the resistor R15, the other end of the resistor R21, the other end of the resistor R20 and the other end of the resistor R12 are all connected with a power supply VCC, and the other end of the resistor R17, the other end of the resistor R18, the other end of the resistor R13, the other end of the resistor R16, the other end of the resistor R25, the other end of the capacitor C10 and the other end of the resistor R22 are all grounded.

The filtering detection output circuit comprises an amplification compensator and an output device, wherein the input end of the amplification compensator is connected with the output end of the differential compensation circuit, the output end of the amplification compensator is connected with the input end of the output device, and the output end of the output device is connected with the input end of the server.

The amplification compensator comprises a resistor R26, one end of a resistor R26 is connected with the output end of the differential compensation circuit, and the other end of a resistor R26 is connected with one end of a resistor R28, one end of a capacitor C12 and one end of a capacitor C11; the other end of the capacitor C12 is connected with one end of a resistor R29 and the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R31 and one end of a resistor R30, and the other end of the resistor R30 is connected with one end of a variable capacitor C13, one end of an inductor L2, the other end of a resistor R28 and the output end of the operational amplifier AR 1; the other end of the inductor L2 is connected with one end of a capacitor C14, the anode of a diode D7 and the output end of an output device, the cathode of a diode D7 is connected with one end of a resistor R32, the other end of a resistor R32 is connected with the base of a triode Q7, the collector of the triode Q7 is connected with one end of a resistor R26 through a resistor R36, the emitter of the triode Q7 is connected with one end of a resistor R33, the other end of the resistor R33 is connected with the cathode of a diode D4, and the anode of the diode D4 is connected with a power supply VCC; the other end of the capacitor C11, the other end of the resistor R29, the other end of the resistor R31, the other end of the variable capacitor C13 and the other end of the capacitor C14 are all grounded.

The output device comprises a capacitor C15, one end of a capacitor C15 is connected with the output end of the amplification compensator, and the other end of a capacitor C15 is connected with the base electrode of a triode Q8; an emitter of the triode Q8 is connected with one end of the resistor R35, and a collector of the triode Q8 is connected with a cathode of the diode D6 and a base of the triode Q10; the anode of the diode D6 is connected with the cathode of the diode D5, and the anode of the diode D5 is connected with one end of the resistor R34 and the base of the triode Q9; the emitter of the triode Q9 and the other end of the resistor R34 are both connected with a power supply VCC, and the collector of the triode Q9 is connected with the emitter of the triode Q10 and the input end of the server; the other end of the resistor R35 and the collector of the triode Q10 are both grounded.

The invention has the beneficial effects that: the signal receiving circuit is used for receiving the frequency signals, so that the signal isolation and buffering effects can be achieved while reflection interference generated in the subsequent transmission process of the signals is avoided, the subsequent circuits are isolated from the previous circuits, and interference among the signals is avoided; the signal converter converts the received frequency signal into a voltage signal, so that the voltage signal is conveniently processed subsequently; the differential circuit taking the triode Q3 and the triode Q4 as cores can effectively inhibit temperature drift, and the current source circuit can greatly improve the common-mode signal rejection ratio and ensure the accuracy of signals; in addition, the diode D3 can also compensate the temperature of the voltage between the base electrode and the emitter electrode of the triode Q6, so that the effect of restraining drift is improved; the triode Q5 is used for detecting the output signal of the differential circuit, if the amplitude of the signal is low, the triode Q5 is conducted, the signal is output to the base electrode of the triode Q3 after frequency selection for differential amplification again, and the attenuation and loss of the frequency signal in the wireless transmission process can be compensated while the signal stability is improved; the filtering detection output circuit further amplifies and detects the corresponding signals, and the problem that the data accuracy is influenced due to the fact that the signal amplitude is too low is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic circuit connection diagram of a signal receiving circuit and a differential compensation circuit.

Fig. 2 is a circuit connection diagram of the filtering detection output circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

A chronic disease management system is shown in fig. 1 and fig. 2, and comprises a client for collecting patient information and a server for monitoring patient conditions by doctors, wherein wireless communication modules are arranged on the client and the server for signal transmission between the client and the server, a signal receiving circuit, a differential compensation circuit and a filtering detection output circuit are arranged between the wireless communication modules and the server, and the signal receiving circuit receives frequency signals received by the wireless communication modules and sends the frequency signals to the differential compensation circuit; the differential compensation circuit performs differential amplification compensation on the frequency signals and then transmits the signals to the filtering detection circuit, and the filtering detection circuit performs filtering processing on the signals and then transmits the signals to the server. Of course, the system can also be arranged between the client and the corresponding wireless communication module for adjusting the received signal of the client.

The signal receiving circuit comprises a buffer matcher and a signal converter, the buffer matcher forwards a received frequency signal to the signal converter, and the signal converter converts the frequency signal into a voltage signal and transmits the voltage signal to the differential compensation circuit.

The buffer matcher comprises a capacitor C1, one end of a capacitor C1 is connected with the wireless communication module, the other end of a capacitor C1 is connected with one end of an inductor L1 and one end of a capacitor C2, and the other end of a capacitor C2 is connected with the anode of a diode D2 and the cathode of a diode D1; the cathode of the diode D2 is connected with one end of the resistor R1 and the base of the triode Q2, and the anode of the diode D1 is connected with one end of the resistor R2 and the base of the triode Q1; the emitting electrode of the triode Q2 is connected with the input end of the signal converter and the emitting electrode of the triode Q1, the collecting electrode of the triode Q1 and the other end of the resistor R2 are both connected with the power supply VCC, and the collecting electrode of the triode Q2, the other end of the resistor R1 and the other end of the inductor L1 are all grounded. The capacitor C1 is used for receiving frequency signals, and the capacitor C1, the inductor L1 and the capacitor C2 form an impedance matching circuit, so that reflection interference generated in subsequent signal transmission is avoided, and the accuracy of subsequent circuit signal transmission is ensured; the diode D1, the diode D2, the triode Q1, the triode Q2, the resistor R1 and the resistor R2 form a buffer circuit together, so that the buffer circuit plays a role of signal isolation and buffering, a subsequent circuit is isolated from a previous circuit, and interference among signals is avoided.

The signal converter comprises a capacitor C3, one end of a capacitor C3 is connected with an output end of a buffer matcher, namely an emitter of a triode Q1, the other end of the capacitor C3 is connected with a pin 6 of a frequency-voltage conversion chip U1, a pin 5 of the frequency-voltage conversion chip U1 is connected with one end of a capacitor C4 and one end of a resistor R3, a pin 7 of the frequency-voltage conversion chip U1 is connected with one end of a resistor R4 and one end of a resistor R5, a pin 8 of the frequency-voltage conversion chip U1, the other end of the resistor R3 and the other end of a resistor R4 are connected with a power supply VCC, a pin 1 of the frequency-voltage conversion chip U1 is connected with one end of a resistor R8, one end of a capacitor C5 and an input end of a differential compensation circuit, a pin 2 of the frequency-voltage conversion chip U1 is connected with one end of a resistor R6, the other end of a resistor R6 is connected with one end of a variable resistor R7, and a pin 3 of the frequency-voltage conversion chip U1 is connected with a first pin 3, The 4 th pin of the frequency-voltage conversion chip U1, the other end of the variable resistor R7, the other end of the resistor R8, the other end of the capacitor C5, the other end of the resistor R5 and the other end of the capacitor C4 are all grounded. The signal converter can convert the received frequency signal into a voltage signal, and the voltage signal is conveniently processed subsequently.

The differential compensation circuit comprises a resistor R9, one end of a resistor R9 is connected with the output end of the signal receiving circuit, namely the 1 st pin of the frequency-voltage conversion chip U1, one end of a capacitor C6 at the other end of the resistor R9 is connected, and the other end of a capacitor C6 is connected with one end of a resistor R10, one end of a capacitor C7 and one end of a resistor R11; the other end of the resistor R11 is connected with one end of a resistor R12, the base of a triode Q3, one end of a resistor R13, one end of a resistor R24 and one end of a capacitor C9, the collector of a triode Q3 is connected with one end of a resistor R14, and the emitter of the triode Q3 is connected with the emitter of a triode Q4 and the collector of a triode Q6; an emitter of the triode Q6 is connected with one end of the resistor R16, a base of the triode Q6 is connected with one end of the resistor R18 and the anode of the diode D3, and the cathode of the diode D3 is connected with one end of the resistor R17; a collector of the triode Q4 is connected with one end of the resistor R15, one end of the resistor R19 and an input end of the filtering detection output circuit, and a base of the triode Q4 is connected with one end of the resistor R21 and one end of the resistor R22; the other end of the resistor R19 is connected with the base electrode of a triode Q5, the emitter electrode of the triode Q5 is connected with one end of a resistor R20, the collector electrode of the triode Q5 is connected with one end of a resistor R23 and one end of a capacitor C8, the other end of the resistor R23 is connected with the other end of the resistor R24 and one end of a capacitor C10, and the other end of the capacitor C8 is connected with one end of a resistor R25 and the other end of the capacitor C9; the other end of the resistor R14, the other end of the resistor R15, the other end of the resistor R21, the other end of the resistor R20 and the other end of the resistor R12 are all connected with a power supply VCC, and the other end of the resistor R17, the other end of the resistor R18, the other end of the resistor R13, the other end of the resistor R16, the other end of the resistor R25, the other end of the capacitor C10 and the other end of the resistor R22 are all grounded.

The resistor R9, the resistor R10, the capacitor C6 and the capacitor C7 form a band-pass filter together, signals meeting requirements are selected from converted voltage signals, the signals are transmitted to a differential circuit with the triode Q3 and the triode Q4 as cores, the resistor R12, the resistor R13 and the resistor R22 are all base bias resistors, the triode Q6, the resistor R16, the diode D3, the resistor R17 and the resistor R18 form a current source circuit together, the common-mode signal rejection ratio can be greatly improved, wherein when the voltage between the base and the emitter of the triode Q6 changes due to temperature, the junction resistance of the diode D3 also changes synchronously, the voltage between the base and the emitter of the triode Q6 is compensated, and the effect of restraining drift is achieved. The triode Q5 is used for detecting the output signal of the differential circuit, when the level is low, the triode Q5 is conducted, frequency is selected by a frequency selector consisting of a resistor R23, a resistor R24, a resistor R25, a capacitor C8, a capacitor C9 and a capacitor C10, and then the frequency is fed back to the base of the triode Q3 for differential amplification again, so that the loss of the frequency signal in the wireless transmission process can be compensated while the signal stability is improved.

The filtering detection output circuit comprises an amplification compensator and an output device, wherein the input end of the amplification compensator is connected with the output end of the differential compensation circuit, the output end of the amplification compensator is connected with the input end of the output device, and the output end of the output device is connected with the input end of the server.

The amplification compensator comprises a resistor R26, one end of a resistor R26 is connected with the output end of the differential compensation circuit, namely the collector of a triode Q4, and the other end of the resistor R26 is connected with one end of a resistor R28, one end of a capacitor C12 and one end of a capacitor C11; the other end of the capacitor C12 is connected with one end of a resistor R29 and the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R31 and one end of a resistor R30, and the other end of the resistor R30 is connected with one end of a variable capacitor C13, one end of an inductor L2, the other end of a resistor R28 and the output end of the operational amplifier AR 1; the other end of the inductor L2 is connected with one end of a capacitor C14, the anode of a diode D7 and the output end of an output device, the cathode of a diode D7 is connected with one end of a resistor R32, the other end of a resistor R32 is connected with the base of a triode Q7, the collector of the triode Q7 is connected with one end of a resistor R26 through a resistor R36, the emitter of the triode Q7 is connected with one end of a resistor R33, the other end of the resistor R33 is connected with the cathode of a diode D4, and the anode of the diode D4 is connected with a power supply VCC; the other end of the capacitor C11, the other end of the resistor R29, the other end of the resistor R31, the other end of the variable capacitor C13 and the other end of the capacitor C14 are all grounded. The resistor R26, the resistor R29, the capacitor C11, the capacitor C12, the resistor R30, the resistor R31 and the operational amplifier AR1 form a second-order band-pass filter amplifier, and a required signal is selected and then amplified, so that the problem that the data accuracy is influenced by too low signal amplitude is solved; the diode D4 plays a role in signal one-way transmission, and signal backflow is avoided; the variable capacitor C13, the inductor L2 and the capacitor C14 form a filter circuit, and ripples in the amplified signal are filtered; diode D7 is rectifier diode, and the signal after will filtering is transmitted to triode Q7 when filtering the small signal in the signal, and triode Q7 is further detected the signal, and when signal amplitude is lower, triode Q7 switches on and feeds back to the one end of resistance R26, and further amplification after the refilter, guarantee that all signals can be by accurate discernment of server and receipt.

The output device comprises a capacitor C15, one end of a capacitor C15 is connected with the output end of the amplification compensator, namely the anode of a diode D7, and the other end of a capacitor C15 is connected with the base electrode of a triode Q8; an emitter of the triode Q8 is connected with one end of the resistor R35, and a collector of the triode Q8 is connected with a cathode of the diode D6 and a base of the triode Q10; the anode of the diode D6 is connected with the cathode of the diode D5, and the anode of the diode D5 is connected with one end of the resistor R34 and the base of the triode Q9; the emitter of the triode Q9 and the other end of the resistor R34 are both connected with a power supply VCC, and the collector of the triode Q9 is connected with the emitter of the triode Q10 and the input end of the server; the other end of the resistor R35 and the collector of the triode Q10 are both grounded. The capacitor C15 is a blocking capacitor, and a push-pull circuit composed of the triode Q8, the triode Q10 and the triode Q9 further eliminates cross-over distortion, so that the accuracy of circuit transmission signals is ensured.

When the invention is used: the signal receiving circuit is used for receiving frequency signals, and the impedance matching circuit consisting of the capacitor C1, the inductor L1 and the capacitor C2 can avoid reflection interference generated by subsequent signal transmission and ensure the accuracy of the subsequent circuit signal transmission; the buffer circuit composed of the diode D1, the diode D2, the triode Q1, the triode Q2, the resistor R1 and the resistor R2 can play a role in signal isolation and buffering, and separates a subsequent circuit from a previous circuit, so that interference among signals is avoided; the signal converter can convert the received frequency signal into a voltage signal, so that the voltage signal can be conveniently processed subsequently; the differential circuit taking the triode Q3 and the triode Q4 as cores can effectively inhibit temperature drift, and the current source circuit can greatly improve the common-mode signal rejection ratio and ensure the accuracy of signals; in addition, the diode D3 can also compensate the temperature of the voltage between the base electrode and the emitter electrode of the triode Q6, so that the effect of restraining drift is improved; the triode Q5 is used for detecting the output signal of the differential circuit, if the amplitude of the signal is low, the triode Q5 is conducted, the signal is output to the base electrode of the triode Q3 after frequency selection for differential amplification again, and the attenuation and loss of the frequency signal in the wireless transmission process can be compensated while the signal stability is improved; the filtering detection output circuit further amplifies and detects the corresponding signals, and the problem that the data accuracy is influenced due to the fact that the signal amplitude is too low is avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.