CN203195679U - Simple finger clamp type pulse detection device - Google Patents
Simple finger clamp type pulse detection device Download PDFInfo
- Publication number
- CN203195679U CN203195679U CN 201320259930 CN201320259930U CN203195679U CN 203195679 U CN203195679 U CN 203195679U CN 201320259930 CN201320259930 CN 201320259930 CN 201320259930 U CN201320259930 U CN 201320259930U CN 203195679 U CN203195679 U CN 203195679U
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- China
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- pulse
- infrared
- bpw83
- amplifier
- mcp6281
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Abstract
A simple finger clamp type pulse detection device is formed by a single chip microcomputer controller, infrared photoelectric geminate transistors, a low-pass amplifier, a hysteresis comparator and an LCD. The infrared photoelectric geminate transistors IR333 and BPW83 are placed at the upper end and the lower end of a finger clamp to sense the induced voltage changing along with pulses in the same period, fingertip pulse non-intrusive detection is achieved, the detected pulse value is displayed in real time through the LCD, and the simple finger clamp type pulse detection device has the advantages of being reliable in performance, simple in operation, low in cost, and strong in practicability.
Description
Technical field
This utility model relates to single-chip microcomputer control technology, infrared photoelectric sensor technology, operational amplifier application technology, LCD LCD Controller technology, especially a kind of simple and easy finger-clipped pulse detecting device.
Background technology
Electronic sphygmograph is widely used at present, and except being applied to medical domain, the commercial application also constantly expanded, and all used the electronic sphygmograph of advanced technology such as the heart rate test in motion, the body-building apparatus.
Recent domestic is devoted to develop the contactless sensor of noinvasive, the key character of this class sensor is that the probe portion of measuring is not invaded body, do not cause the body wound, can automatically eliminate the error of instrument self system, certainty of measurement is high, usually external, especially indirectly measure the physiology and chemistry parameter of human body at body surface.Wherein the photo-electric pulse transducer is the pulse transducer of making according to photoplethymograph, and by the monitoring to the finger tips transmittance, indirect detection goes out pulse signal.Have the advantages such as simple in structure, not damaged, precision be high, reusable.
Summary of the invention
The purpose of this utility model is to provide a kind of simple and easy finger-clipped pulse detecting device, realize that by infrared photoelectric sensor finger tip pulse signal non-intrusion type obtains, the pulse value that shows in real time detection by the LCD LCD MODULE provides a kind of pulse detecting device of high performance-price ratio for family.
The technical scheme that its technical problem that solves this utility model adopts is: this utility model take high performance-price ratio STM8S105K6T6 single-chip microcomputer as core in conjunction with the infrared photoelectric sensor technology, the LCD control technology designs, by singlechip controller, infrared electro is to pipe, low-pass amplifier, hysteresis loop comparator, the LCD liquid crystal display forms jointly, it is characterized in that: consist of singlechip controller 1 by the STM8S105K6T6 single-chip microcomputer, by infrared-emitting diode IR333, infrared receiving diode BPW83 consists of infrared electro to managing 2, consist of low-pass amplifier 3 by the MCP6281 amplifier, consist of hysteresis loop comparator 4 by the OP07 amplifier, by JLX12864G-109-P module composition LCD liquid crystal display 5; IR333 and BPW83 are placed in and refer to up and down two ends of folder, and IR333 sends 940nm wavelength infrared light, and the BPW83 two ends induce with pulse and change synperiodic induced voltage, and the in-phase input end that this voltage signal is delivered to MCP6281 amplifies; The voltage signal of MCP6281 output is delivered to the reverse input end mouth of OP07, the external interrupt enumerator T0 port that OP07 output port output digital pulse signal is delivered to STM8S105K6T6 carries out step-by-step counting, and STM8S105K6T6 draws the pulse value of measurement divided by the timing of timer internal T1 by the count value of T0; The PC0-PC7 of STM8S105K6T6, PD3-PD7 port connect the pulse value of data terminal and the control end control LCD liquid crystal display display measurement of JLX12864G-109-P.
The beneficial effects of the utility model are: the pulse detecting device that a kind of high performance-price ratio is provided for family, adopting the high performance-price ratio single-chip microcomputer is that core designs in conjunction with infrared photoelectric sensor technology, LCD control technology, realize that finger tip pulse non-intrusion type detects and show in real time by the LCD liquid crystal display pulse value of detection, have dependable performance, simple to operate, cost is low, the distinguishing feature such as practical.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is this utility model circuit principle structure block diagram, and 1. singlechip controllers among the figure, 2. infrared electro is to pipe, 3. low-pass amplifier, 4. hysteresis loop comparator, 5.LCD liquid crystal display.
The specific embodiment
Referring to accompanying drawing 1, by singlechip controller, infrared electro pipe, low-pass amplifier, hysteresis loop comparator, LCD liquid crystal display are formed jointly.
Consist of singlechip controller 1 by the STM8S105K6T6 single-chip microcomputer, the external interrupt enumerator T0 port of STM8S105K6T6 connects the output port of OP07, and STM8S105K6T6 draws the pulse value of measurement divided by the timing of timer internal T1 by the count value of T0; The PC0-PC7 of STM8S105K6T6, PD3-PD7 port connect data terminal and the control end of JLX12864G-109-P and realize that the LCD liquid crystal display shows control.
Consist of infrared electro to managing 2 by infrared-emitting diode IR333, infrared receiving diode BPW83, IR333 and BPW83 are placed in and refer to up and down two ends of folder, the infrared transmission that IR333 launches is crossed finger, blood absorption and decay through finger tissue, received by BPW83, because the finger arterial blood presents periodic pulsatile change in the blood circulation process, so the BPW83 two ends induce with pulse with periodically variable voltage pulse signal, this weak output signal is delivered to low-pass amplifier MCP6281 with it and is amplified.
Consist of low-pass amplifier 3 by the MCP6281 amplifier, the in-phase input end that the output voltage of BPW83 is delivered to MCP6281 amplifies, and the reverse input end mouth of the output termination OP07 of MCP6281 carries out voltage ratio, its output port output digital pulse signal.
Consist of hysteresis loop comparator 4 by the OP07 amplifier, the external interrupt enumerator T0 port that the digital pulse signal of the output port output of OP07 is delivered to STM8S105K6T6 carries out step-by-step counting, and STM8S105K6T6 draws the pulse value of measurement divided by the timing of timer internal T1 by the count value of T0.
By JLX12864G-109-P module composition LCD liquid crystal display 5, the pulse value of real-time display measurement.
Claims (1)
1. simple and easy finger-clipped pulse detecting device, by singlechip controller, infrared electro is to pipe, low-pass amplifier, hysteresis loop comparator, the LCD liquid crystal display forms jointly, it is characterized in that: a). consist of singlechip controller (1) by the STM8S105K6T6 single-chip microcomputer, by infrared-emitting diode IR333, infrared receiving diode BPW83 consists of infrared electro to pipe (2), consist of low-pass amplifier (3) by the MCP6281 amplifier, consist of hysteresis loop comparator (4) by the OP07 amplifier, by JLX12864G-109-P module composition LCD liquid crystal display (5); B) .IR333 and BPW83 are placed in and refer to up and down two ends of folder, and IR333 sends 940nm wavelength infrared light, and the BPW83 two ends induce with pulse and change synperiodic induced voltage, and the in-phase input end that this voltage signal is delivered to MCP6281 amplifies; C) voltage signal of .MCP6281 output is delivered to the reverse input end mouth of OP07, the external interrupt enumerator T0 port that OP07 output port output digital pulse signal is delivered to STM8S105K6T6 carries out step-by-step counting, and STM8S105K6T6 draws the pulse value of measurement divided by the timing of timer internal T1 by the count value of T0; D) PC0-PC7 of .STM8S105K6T6, PD3-PD7 port connect the pulse value of data terminal and the control end control LCD liquid crystal display display measurement of JLX12864G-109-P.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320259930 CN203195679U (en) | 2013-05-04 | 2013-05-04 | Simple finger clamp type pulse detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320259930 CN203195679U (en) | 2013-05-04 | 2013-05-04 | Simple finger clamp type pulse detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203195679U true CN203195679U (en) | 2013-09-18 |
Family
ID=49139823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320259930 Expired - Fee Related CN203195679U (en) | 2013-05-04 | 2013-05-04 | Simple finger clamp type pulse detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203195679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106821360A (en) * | 2017-03-08 | 2017-06-13 | 佛山科学技术学院 | A kind of sensor-based human body pulse frequency testing equipment |
| CN106943125A (en) * | 2017-03-16 | 2017-07-14 | 盐城师范学院 | A kind of intelligent diagnosis system and its implementation based on pulse wave |
-
2013
- 2013-05-04 CN CN 201320259930 patent/CN203195679U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106821360A (en) * | 2017-03-08 | 2017-06-13 | 佛山科学技术学院 | A kind of sensor-based human body pulse frequency testing equipment |
| CN106943125A (en) * | 2017-03-16 | 2017-07-14 | 盐城师范学院 | A kind of intelligent diagnosis system and its implementation based on pulse wave |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140504 |