CN205041378U

CN205041378U - But low -power consumption pulse tester of seeing and hearing

Info

Publication number: CN205041378U
Application number: CN201520498401.4U
Authority: CN
Inventors: 江金龙; 胡於鑫
Original assignee: Jiujiang University
Current assignee: Jiujiang University
Priority date: 2015-07-12
Filing date: 2015-07-12
Publication date: 2016-02-24
Anticipated expiration: 2025-07-12

Abstract

The utility model relates to a but low -power consumption pulse tester of seeing and hearing, its characterized in that: including little consumption single -chip module, pulse sensing module, pulse detection switch, pulse shaping module, power module, display module, pulse power amplifier and speaker, little consumption single -chip module is MSP430G2 series singlechip, and an one of which IO mouth is connected with the pulse detection switch, and a IO mouth is used for starting voltage stabilizing module work, the output signal of pulse sensing module divides the three routes to handle, and the ADC input of singlechip is received to the first via, and the inside comparison module of singlechip is received through shaping module in the second way for test pulse width calculates the pulse frequency, and the pulse signal of sampling shows on waveform converting exports LCD, and third way passages through which vital energy circulates is fought the power amplifier and is play at the speaker. The utility model discloses can audio -visually see the pulse condition of beating, it is visual in image, also can hear sphygmous details, have abundant pulse information of beating and health information.

Description

A kind of low-power consumption pulse test meter of audio-visual

Technical field

This utility model relates to a kind of pulse test meter of biomedical engineering technology field.

Background technology

In community hospital and the hospital of traditional Chinese hospital, doctor often feels the pulse to patient, as a diagnosis basis of disease.In family, feel the pulse and can observe physical condition.But a small amount of information such as frequency, dynamics that only can obtain pulse or heartbeat of feeling the pulse.If energy pulse and heart beating situation show intuitively and find out, more biological information will be obtained, for medical diagnosis on disease and health care of body provide more services.

Summary of the invention

The purpose of this utility model is the low-power consumption pulse test meter providing a kind of audio-visual, and the pulse test meter overcome in the past only can obtain the frequency of pulse or heartbeat, cannot obtain the shortcoming of more biological informations.

A kind of low-power consumption pulse test meter of audio-visual, it is characterized in that: comprise ultra low-power microcontroller module, pulse sensing module, pulse detection switch, pulse Shaping Module, power module, LCD waveform display module, pulse power amplifier and speaker, described ultra low-power microcontroller module is MSP430G2 series monolithic, an one I/O mouth is connected with pulse detection switch, and an I/O mouth is for starting Voltage stabilizing module work; The output signal of pulse sensing module divides three tunnel process, the first via receives the ADC input of single-chip microcomputer, the comparison module of single-chip microcomputer inside is received through Shaping Module in second tunnel, for test pulse width, calculate pulse frequency, the pulse signal of sampling outputs on LCD through waveform conversion and shows, and the 3rd tunnel is play at speaker through pulse power amplifier.

A kind of audio-visual low-power consumption pulse test meter, is characterized in that: its inside of ultra low-power microcontroller module comprises ADC unit, capture compare unit, timing and sleep block, and do not need the peripheral circuits such as external crystal oscillator, ADC, integrated circuit is succinct.

A kind of audio-visual low-power consumption pulse test meter, it is characterized in that: described ultra low-power microcontroller normally can work within the scope of 1.8 ~ 3.3V, can directly by two joint 1.5V battery powered, an one I/O mouth is connected with pulse detection switch, when detecting pulse, port level wake-up single-chip microcomputer, simultaneously after the time delay of setting, single-chip microcomputer enters park mode automatically, when again detecting, single-chip microcomputer and peripheral circuit can be waken up again, substantially prolongs the service life of battery, also eliminate the trouble of user's powered-down simultaneously.

A kind of audio-visual low-power consumption pulse test meter, it is characterized in that: pulse sensing module uses electret capacitor microphone, its transient response performance is good, highly sensitive, distortion is little, and noise is little, tone color is soft, after power amplifier, tester can hear the pulse sound that oneself is melodious, can see the waveform of beating of the pulse of oneself at LCD simultaneously.

A kind of audio-visual low-power consumption pulse test meter, is characterized in that: software module comprises single-chip microcomputer and wakes parameter estimation function, waveform transforming function transformation function, the waveform explicit functions such as function, ADC sampling function, frequency up.

The utility model has the advantages that: this utility model can see beat pulse situation intuitively, visual in image, details of beating can also be observed intuitively, also the details of pulse can be heard, there is abundant beat pulse information and physical condition information, adopt low-power scm, add power saving management mode, remove the trouble of user's powered-down simultaneously from.Both extend the service life of battery, be also conducive to environmental conservation.

Accompanying drawing explanation

Fig. 1 is theory structure schematic diagram of the present utility model;

Fig. 2 is single chip circuit structural representation of the present utility model;

Fig. 3 is pulse power amplifier of the present utility model and LCD display circuit;

Fig. 4 is pulse shaping circuit of the present utility model;

Fig. 5 is pulse sensing circuit of the present utility model.

Detailed description of the invention

Now be described with reference to the accompanying drawings the embodiment of this utility model structure:

A kind of low-power consumption pulse test meter of audio-visual, it is characterized in that: comprise ultra low-power microcontroller module, pulse sensing module, pulse detection switch, pulse Shaping Module, power module, LCD waveform display module, pulse power amplifier and speaker etc., its inside of ultra low-power microcontroller module comprises ADC unit, capture compare unit, timing and sleep block, do not need the peripheral circuits such as external crystal oscillator, ADC, integrated circuit is succinct.Its entire block diagram as shown in Figure 1.Described ultra low-power microcontroller module is MSP430G2 series monolithic, and an one I/O mouth is connected with pulse detection switch, and an I/O mouth is for starting Voltage stabilizing module work; The output signal of pulse sensing module divides three tunnel process, the first via receives the ADC input of single-chip microcomputer, the comparison module of single-chip microcomputer inside is received through Shaping Module in second tunnel, for test pulse width, calculate pulse frequency, the pulse signal of sampling outputs on LCD through waveform conversion and shows, and the 3rd tunnel is play at speaker through pulse power amplifier.Each modular circuit as shown in Figure 2-5.Ultra low-power microcontroller module as shown in Figure 2, is Systematical control core, is responsible for the A/D sampling of pulse signal, waveform conversion, sends the functions such as video data, the calculating of pulse frequency parameter, timing shutdown and power module control.Wherein pulse detection switch is responsible for waking single-chip microcomputer up, pulse detection switch is in normally open at ordinary times, when detecting beat pulse, pulse detection switch closes automatically, low level wake-up single-chip microcomputer, and then single-chip microcomputer sends instruction, power on to power module, system starts, after the delay of certain hour, system enters battery saving mode automatically.As shown in Figure 3, the pulse signal of A/D sampling is transferred to LCD display module by SPI host-host protocol after waveform conversion for pulse power amplifier and LCD display module, the display pulse waveform simultaneously also parameter such as pulse frequency.The analogue signal that pulse sensing module exports, after pulse power amplifier, promotes speaker sounding.Pulse Shaping Module as shown in Figure 4, utilizes the capture compare module of single-chip microcomputer inside to detect pulse frequency.Because pulse signal is signal irregular cycle, suitable threshold values can be selected to be transformed into square-wave signal to pulse signal, then the capture compare module through single-chip microcomputer inside detect pulse frequency.Pulse sensing module as shown in Figure 5.In order to obtain melodious pulse sound, this utility model adopts Electret condenser microphone to detect beat pulse information, amplifies and after level shift, export the ADC input port of 0 ~ 3V voltage to one-chip computer module through secondary.

Work process of the present utility model is as follows: when the Electret condenser microphone of pulse test meter is attached to the place such as arm, chest, pulse detection switch closes automatically, wake single-chip microcomputer work up, start Voltage stabilizing module to power to peripheral circuit, single-chip microcomputer first gathers pulse signal simultaneously, then waveform conversion, and show at LCD display, pulse signal after shaping simultaneously enters capture compare module, calculates pulse frequency, pastes to be added on LCD to show.In addition, the signal that pulse sensing module exports, after power amplifier, plays back at speaker.After waking single-chip microcomputer up, the intervalometer that single-chip microcomputer carries also is started working, and after reaching fixed time delay, single-chip microcomputer auto sleep, enters battery saving mode.When again detecting, repeat said process.

Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field; make some equivalent alternative or obvious modification without departing from the concept of the premise utility; and performance or purposes identical, then should be considered as belonging to the protection domain that claims that this utility model submits to are determined.

Claims

1. the low-power consumption pulse test meter of an audio-visual, it is characterized in that: comprise ultra low-power microcontroller module, pulse sensing module, pulse detection switch, pulse Shaping Module, power module, LCD waveform display module, pulse power amplifier and speaker, described ultra low-power microcontroller module is MSP430G2 series monolithic, an one I/O mouth is connected with pulse detection switch, and an I/O mouth is for starting Voltage stabilizing module work; The output signal of pulse sensing module divides three tunnel process, the first via receives the ADC input of single-chip microcomputer, the comparison module of single-chip microcomputer inside is received through Shaping Module in second tunnel, for test pulse width, calculate pulse frequency, the pulse signal of sampling outputs on LCD through waveform conversion and shows, and the 3rd tunnel is play at speaker through pulse power amplifier.

2. audio-visual low-power consumption pulse test meter according to claim 1, is characterized in that: its inside of ultra low-power microcontroller module comprises ADC unit, capture compare unit, timing and sleep block, does not need external crystal oscillator, ADC peripheral circuit.

3. audio-visual low-power consumption pulse test meter according to claim 2, it is characterized in that: described ultra low-power microcontroller normally works within the scope of 1.8 ~ 3.3V, direct use two saves 1.5V battery powered, an one I/O mouth is connected with pulse detection switch, when detecting pulse, and port level wake-up single-chip microcomputer, simultaneously after the time delay of setting, single-chip microcomputer enters park mode automatically, when again detecting, can wake single-chip microcomputer and peripheral circuit up again.

4. the audio-visual low-power consumption pulse test meter according to claim 1 or 3, is characterized in that: pulse sensing module uses electret capacitor microphone.