CN107578685A

CN107578685A - A kind of blood pressure simulative generator

Info

Publication number: CN107578685A
Application number: CN201710977087.1A
Authority: CN
Inventors: 董荣琴
Original assignee: Huzhou Rehabilitation Products Co Ltd Kay Kay
Current assignee: Huzhou Rehabilitation Products Co Ltd Kay Kay
Priority date: 2017-10-19
Filing date: 2017-10-19
Publication date: 2018-01-12

Abstract

The invention provides a kind of blood pressure simulative generator, including single chip processing module, keyboard control module, solenoid valve driving module, pressure acquisition module, voice playing module, LCD MODULE and power module.Present invention MCU driving magnetic valve simulation human pulse is beaten, and played in order Ke's labor kirschner sound to tally with the actual situation, the acoustic fidelity sent, work well, the blood pressure parameters such as corresponding systolic pressure, diastolic pressure can be set simultaneously, so as to judge the indices such as systolic pressure and diastolic pressure under different hearts rate, the accuracy of measurement result can intuitively be considered very much, medical student can be made quickly to grasp blood pressure measuring method, its system architecture is simple, and cost is cheap, it is low in energy consumption, measurement accuracy is high, stable performance, is with good expansibility.

Description

A kind of blood pressure simulative generator

Technical field

The present invention relates to medical instruments and equipment technical field, more particularly to a kind of blood pressure simulative generator.

Background technology

With the development of the social economy, the living standard more and more higher of people, health care consciousness is also increasingly stronger, to doctor Raw detection and the requirement for the treatment of level also more and more higher.Although one fairly simple technology during the measurement of blood pressure, if surveying Operate lack of standardization during amount, institute's measuring blood pressure numerical value error also often occurs compared with actual blood pressure value, it is impossible to objective and accurate true Ground reflects the blood pressure situation of measured.Conventional basic examination part of the blood pressure measurement as medical student, is all by direct Anthropological measuring, but the actual blood pressure situation of human body is tested in the case of not knowing at that time, lack the objective standard of examination, survey simultaneously Amount process is easily disturbed by external environment again, therefore causes certain difficulty to peacetime training and examination.

The content of the invention

(1) technical problem solved

In order to solve the above problems, the invention provides a kind of blood pressure simulative generator, with MCU driving magnetic valve mould Intend human pulse beating, and played in order Ke's labor kirschner sound to tally with the actual situation, corresponding systolic pressure, diastole can be set The blood pressure parameters such as pressure, so as to judge the indices such as systolic pressure and diastolic pressure under different hearts rate, can intuitively it consider very much The accuracy of measurement result.

(2) technical scheme

A kind of blood pressure simulative generator, including single chip processing module, keyboard control module, solenoid valve driving module, pressure Power acquisition module, voice playing module, LCD MODULE and power module；The keyboard control module input human blood-pressure ginseng Count and be stored in the single chip processing module, the single chip processing module controls the solenoid valve driving module by input Blood pressure parameter simulation human pulse beating, the voice playing module plays the ticktack of the simulation human pulse Sound, the pressure acquisition module gather the pressure value for simulating human pulse and simultaneously shown in the LCD MODULE, The power module remaining each module for power supply to system.

Further, the single chip processing module uses 16 single-chip microcomputer SPEC061A.

Further, the solenoid valve driving module includes the first triode, the second triode and magnetic valve, wherein described First and second triodes are NPN type triode.

Further, the pressure acquisition module uses MPX5100 serial gas pressure sensors.

Further, the voice playing module include Audio power amplifier chip, loudspeaker, the first~the 4th electric capacity, First resistor and second resistance, wherein the Audio power amplifier chip is 8pin SPY0030A.

Further, the LCD MODULE uses the small-sized Liquid Crystal Modules of CMS-TG94DYSG-w.

Further, the power module includes lithium battery, step-up/step-down circuit and charge management circuit.

Further, the step-up/step-down circuit includes buck chip, inductance, Schottky diode, the 5th~the tenth Four electric capacity and the 3rd~the 9th resistance, wherein the buck chip is 16pin MAX1705, described five, the six, the 11st It is electrochemical capacitor with the 14th electric capacity；The charge management circuit includes linear-charging managing chip, the 3rd triode, luminous two Pole pipe, the tenth~the 14th resistance, the 15th electric capacity and the 16th electric capacity, wherein the linear-charging managing chip is 8pin BQ2057, the 3rd triode are PNP type triode.

(3) beneficial effect

The invention provides a kind of blood pressure simulative generator, is beaten with MCU driving magnetic valve simulation human pulse, and With the played in order Ke's labor kirschner sound to tally with the actual situation, the acoustic fidelity sent, work well, while can set corresponding The blood pressure parameters such as systolic pressure, diastolic pressure, can be very so as to judge the indices such as systolic pressure and diastolic pressure under different hearts rate The accuracy of measurement result intuitively to be considered, medical student can be made quickly to grasp blood pressure measuring method, its system architecture is simple, into This is cheap, low in energy consumption, and measurement accuracy is high, stable performance, is with good expansibility.

Brief description of the drawings

Fig. 1 is a kind of system architecture diagram of blood pressure simulative generator involved in the present invention.

Fig. 2 is a kind of solenoid valve driving module circuit theory diagrams of blood pressure simulative generator involved in the present invention.

Fig. 3 is a kind of voice playing module circuit theory diagrams of blood pressure simulative generator involved in the present invention.

Fig. 4 is a kind of power module step-up/step-down circuit schematic diagram of blood pressure simulative generator involved in the present invention.

Fig. 5 is a kind of power module charge management circuit schematic diagram of blood pressure simulative generator involved in the present invention.

Embodiment

Embodiment involved in the present invention is described in further details below in conjunction with the accompanying drawings.

As shown in figure 1, a kind of blood pressure simulative generator, including single chip processing module, keyboard control module, magnetic valve drive Dynamic model block, pressure acquisition module, voice playing module, LCD MODULE and power module；Keyboard control module inputs human body Blood pressure parameter is simultaneously stored in single chip processing module, and single chip processing module control solenoid valve driving module is by the blood pressure inputted Parameter simulation human pulse is beaten, and voice playing module plays the bounce sound of simulation human pulse, the collection of pressure acquisition module Simulate the pressure value of human pulse and shown in LCD MODULE, source module remaining each module for power supply to system.

Single chip processing module is as Master control chip, the chip clock using ice run disaster SPEC061A 0.32~9.152MHz, built-in 2KB SRAM and 32KB Flash, 32 programmable multi-functional I/O ports, two 16 fixed When device/counter, may be programmed audio frequency process, (clock is in halted state) power consumption is only 2uA under system reserve state, 7 passages 10 voltage A/D converters, the audio input function of 10 DAC modes of binary channels, it is only necessary to which external power amplifier can complete voice Broadcasting, conveniently realize the phonetic function of system, 2 external clock references inputs, possess touching arousal function, in addition with oneself IDE, be with good expansibility.

As shown in Fig. 2 solenoid valve driving module includes triode Q1, triode Q2 and magnetic valve M1, wherein triode Q1 It is NPN type triode with Q2.The parameters such as the default human blood-pressure systolic pressure of key-press input, diastolic pressure are simultaneously stored in single-chip microcomputer, Control magnetic valve M1 to simulate human pulse according to default blood pressure parameter by single-chip microcomputer to beat, it is according to Ke's labor kirschner technology (blood The sound of 5 phases that stethoscope is heard on artery during pressure measurement) and modern medicine relevant regulations, in strict accordance with pulse The rule of generation, the acoustic fidelity sent, works well, and can simulate different hearts rate and judge blood pressure systolic pressure and diastolic pressure Deng indices, student can be made quickly to grasp blood pressure measuring method.For more preferable simulation blood pressure measurement environment, bring and more force Genuine effect, using high sensitivity, the magnetic valve M1 of low noise, its operating voltage is 5V.The magnetic valve after system initialization M1 just starts to be worked according to default blood pressure parameter, its jumping frequency rate is controlled by single-chip microcomputer, in order to increase driving current, three poles Pipe Q1 and Q2 form Darlington transistor, and its multiplication factor is the product of two triode multiplication factors, so as to reach small base stage electricity The purpose of the big collector current of flow control, worked with drive magnetic valve M1.

Pressure acquisition module uses the MPX5100 serial gas pressure sensors of Motorola, can bear 0~100KPa Pressure, output voltage meets the input voltage range of single-chip processor i/o, by built in single-chip microcomputer in the range of 0.5~4.5V A/D conversion collection gas pressure sensor voltage change, can obtain according to reduction formula AD=K1*mmHg+offset*K2 The voltage digital amount of the pressure value of measurement, wherein AD positions after AD conversion, the pressure value that mmHg positions measure, K1=1.8, K2= 329.17, offset be calibration factor=0.2.

As shown in figure 3, voice playing module includes Audio power amplifier chip U1, loudspeaker Sp1, electric capacity C1~C4, electricity R1 and R2 is hindered, wherein Audio power amplifier chip U1 is 8pin SPY0030A.Single-chip microcomputer SPCE061A supports speech play technology Required repertoire, there is two class D/A ALT-CH alternate channels, and one kind is that another kind of is to adopt directly using the DAC modes of D/A conversions With the PWM type of drive of pulsewidth modulation, its structure is made up of two DAC passages or a PWM driving passage.Two class realization sides Formula essence is all changed for D/A, is all to convert digital signals into analog current signal output.The audio output of the system is using double Passage D/A changes DAC modes, i.e. data signal is converted into analog current signal by 10 DAC, through SPY0030A chip signals After amplification, exported by loudspeaker Sp1.

LCD MODULE uses the small-sized Liquid Crystal Modules of CMS-TG94DYSG-w, 128 × 64 dot matrix lcd module Cheap, data are readable writeable, very easy to use.Its driving chip uses the KS0713 of Samsung, is a kind of small-sized big Scale integrates and carries the dot matrix type LCD Controlling chip of driver.KS0713 small volumes, directly it can be controlled by single-chip microcomputer, data Read-write operation is not controlled by external clock, and integration degree is high, power drives necessary to carrying liquid crystal, simplifies circuit knot Structure.

As shown in Figure 4 and Figure 5, power module includes lithium battery, step-up/step-down circuit and charge management circuit, step-up/step-down circuit Including buck chip U2, inductance L1, Schottky diode D1, electric capacity C5~C14 and resistance R3~R9, wherein buck chip U2 is 16pin MAX1705, and electric capacity C5, C6, C11 and C14 are electrochemical capacitor；Charge management circuit includes linear-charging management core Piece U3, triode Q3, LED 1, resistance R10~R14, wherein electric capacity C15 and C16, linear-charging managing chip U3 For 8pin BQ2057, triode Q3 is PNP type triode.

Power management is the problem of any electronic product can not all be avoided, with the lifting of energy cost, reduce power consumption into One of competitive advantage for electronic product.In the portable product won victory with mobility based on battery powered, reducing energy consumption turns into Power management urgent problem in portable product.The system power unit using MAX1705 bucks chip and BQ2057 linear-charging managing chips, MAX1705 have low-power consumption, efficiently, the characteristics of low noise, output voltage 2.5~ In the range of 5.5V, maximum output current 850mA, the needs of most of portable instrument can be met completely.TI linear lithium electricity Pond charging management chip BQ2057 is adapted to the charging needs of single-unit or two lithium ion batteries, can dynamically compensate the interior of lithium battery Resistance monitors with optional battery temperature to reduce the charging interval, battery temperature is continuously detected using battery temperature sensor, When battery temperature exceeds setting range, BQ2057 closes to charge to battery.The constant pressure and flow device being internally integrated carries high/low side Current sense and programmable charge current, charged state identification can be realized there is automatic weight by the LED 1 exported New charging, minimum current terminate the characteristics such as charging, low-power consumption sleep.The charger peripheral circuit designed using the chip is extremely simple It is single, it is especially suitable for the compact design needs of portable type electronic product.

The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention Think and scope is defined.On the premise of design concept of the present invention is not departed from, technology of the ordinary people in the field to the present invention The all variations and modifications that scheme is made, all should drop into protection scope of the present invention, the claimed technology contents of the present invention, All record in detail in the claims.

Claims

A kind of 1. blood pressure simulative generator, it is characterised in that：Driven including single chip processing module, keyboard control module, magnetic valve Dynamic model block, pressure acquisition module, voice playing module, LCD MODULE and power module；The keyboard control module input Human blood-pressure parameter is simultaneously stored in the single chip processing module, and the single chip processing module controls the solenoid-driven Module is by the blood pressure parameter simulation human pulse beating of input, the voice playing module broadcasting simulation human pulse Bounce sound, the pressure value of the pressure acquisition module collection simulation human pulse simultaneously enters in the LCD MODULE Row display, the power module remaining each module for power supply to system.
A kind of 2. blood pressure simulative generator according to claim 1, it is characterised in that：The single chip processing module uses 16 single-chip microcomputer SPEC061A.
A kind of 3. blood pressure simulative generator according to claim 1, it is characterised in that：The solenoid valve driving module includes First triode, the second triode and magnetic valve, wherein first and second triode is NPN type triode.
A kind of 4. blood pressure simulative generator according to claim 1, it is characterised in that：The pressure acquisition module uses MPX5100 serial gas pressure sensors.
A kind of 5. blood pressure simulative generator according to claim 1, it is characterised in that：The voice playing module includes sound Frequency power amplifier chip, loudspeaker, the first~the 4th electric capacity, first resistor and second resistance, wherein the Audio power amplifier Chip is 8pin SPY0030A.
A kind of 6. blood pressure simulative generator according to claim 1, it is characterised in that：The LCD MODULE uses The small-sized Liquid Crystal Modules of CMS-TG94DYSG-w.
A kind of 7. blood pressure simulative generator according to claim 1, it is characterised in that：The power module includes lithium electricity Pond, step-up/step-down circuit and charge management circuit.
A kind of 8. blood pressure simulative generator according to claim 7, it is characterised in that：The step-up/step-down circuit includes lifting Chip, inductance, Schottky diode, the 5th~the 14th electric capacity and the 3rd~the 9th resistance are pressed, wherein the buck chip For 16pin MAX1705, described five, the six, the 11st and the 14th electric capacity be electrochemical capacitor；The charge management circuit bag Include linear-charging managing chip, the 3rd triode, light emitting diode, the tenth~the 14th resistance, the 15th electric capacity and the 16th Electric capacity, wherein the linear-charging managing chip is 8pin BQ2057, the 3rd triode is PNP type triode.