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Heartbeat and heart rate detection circuit

A technology for detecting circuit and heart rate, applied in the medical field, can solve the problems of large heart rate error and low accuracy

Pending Publication Date: 2021-05-11
王强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of large errors and low precision in detecting the patient's heart rate by means of finger clips, the technical problem of the present invention is to provide a heartbeat and heart rate detection circuit with high detection accuracy

Method used

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Effect test

Embodiment 1

[0020] A heartbeat heart rate detection circuit, such as figure 1 As shown, it includes a power supply circuit 1, an infrared transmitting and receiving pair tube 2, a first filter circuit 3, a first low-pass filter 4, a second filter circuit 5, a second low-pass filter 6 and an MCU7. The transmitting and receiving pair tube 2 is connected to the input end of the first filter circuit 3, the output end of the first filter circuit 3 is connected to the first low-pass filter 4, and the first low-pass filter 4 is connected to the second filter circuit The input terminal of 5 is connected, and the second filter circuit 5 is connected with the second low-pass filter 6, and the second low-pass filter 6 is connected with the MCU7, and the MCU7 is connected with the infrared transmitting and receiving pair tube 2, and the The power supply circuit 1 supplies power for the infrared transmitting and receiving pair tube 2, the first filter circuit 3, the first low-pass filter 4, the second...

Embodiment 2

[0023] A heartbeat heart rate detection circuit, such as figure 2 As shown, the infrared transmitting and receiving pair tube 2 includes a triode Q1, an infrared transmitting tube IR1, an infrared receiving tube RV1, a resistor R1-resistor R2 and a resistor R8, the emitter of the triode Q1 is grounded, and the base of the triode Q1 A resistor R8 is connected in series, the collector of the triode Q1 is connected in series with the infrared emitting tube IR1 and the resistor R1, the other end of the resistor R1 is connected to +5V, the infrared receiving tube RV1 is connected in series with a resistor R2, and the other end of the resistor R2 is connected to +5V, the other end of the infrared receiving tube RV1 is grounded.

[0024] The first filter circuit 3 includes an operational amplifier MCP602, resistor R3-resistor R6, electrolytic capacitor EC1-electrolytic capacitor EC2 and capacitor C1, the 4 pins of the operational amplifier MCP602 are grounded, and the 8 pins of the ...

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Abstract

The invention relates to the field of medical treatment, in particular to a heartbeat and heart rate detection circuit. The technical problem of the invention is to provide the heartbeat and heart rate detection circuit with high detection precision. According to the technical scheme, the heartbeat and heart rate detection circuit comprises a power supply circuit, infrared transmitting and receiving geminate transistors, a first filter circuit, a first low-pass filter and the like, wherein the infrared transmitting and receiving geminate transistors are connected with the input end of the first filter circuit, and the output end of the first filter circuit is connected with the first low-pass filter. Voltage signals can be processed through the first filter circuit, the first low-pass filter, a second filter circuit and a second low-pass filter, disordered signals in the voltage signals are removed, useful signals are reserved, and therefore, the detection precision can be guaranteed.

Description

technical field [0001] The invention relates to the medical field, in particular to a heart rate detection circuit. Background technique [0002] Heart rate refers to the number of heartbeats per minute of a normal person in a quiet state. In the medical field, heart rate can be used to judge the patient's condition, so that doctors can accurately judge the patient's condition. It is a common detection method. At present, it is mainly through finger clips. The heart rate of the patient is detected by means of this method, which has large errors and low accuracy. [0003] Aiming at the existing problems at present, we design a heartbeat and heart rate detection circuit with high detection accuracy. Contents of the invention [0004] In order to overcome the shortcomings of relatively large error and low precision in detecting the patient's heart rate by means of finger clips, the technical problem of the present invention is to provide a heartbeat and heart rate detection ...

Claims

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Application Information

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IPC IPC(8): A61B5/024A61B5/00
CPCA61B5/024A61B5/725A61B5/72
Inventor 王强
Owner 王强
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