CN202204608U

CN202204608U - Intelligent thermometer with low power consumption voice broadcast

Info

Publication number: CN202204608U
Application number: CN2011202776042U
Authority: CN
Inventors: 张佳惠; 由军; 张子红
Original assignee: Harbin Medical University
Current assignee: Harbin Engineering University; Harbin Medical University
Priority date: 2011-08-02
Filing date: 2011-08-02
Publication date: 2012-04-25
Anticipated expiration: 2021-08-02

Abstract

The utility model discloses an intelligent thermometer with low power consumption voice broadcast. A mercury thermometer slips easily and is easy to break, so that a child can take mercury mistakenly to result in poisoning; a person with poor sight and the aged can not read the number accurately; and a neonate and a baby can not cooperate with a doctor due to the long-time measuring, and the repeat measurement is difficult, so that the nursing workload and the potential danger are increased unconsciously, and timely mastering of the ill state of infants by medical workers is influenced. The intelligent thermometer with low power consumption voice broadcast comprises a main controller (1), one side of the main controller is connected with a voice broadcaster (2), a button input device (3) and a power supply (4), and another side of the main controller is connected with an LCD (Liquid Crystal Display) (5) and a temperature sensor (6). The intelligent thermometer is used for measuring the body temperature of a human body.

Description

Intelligent clinical thermometer with low-power consumption voice broadcast

Technical field:

the utility model relates to a kind of device of novel take temperature, is specifically related to a kind of intelligent clinical thermometer with low-power consumption voice broadcast.

Background technology:

" modern electronic technology " total the 330th phase of 2010 the 19th phases discloses a kind of " based on the intelligent thermometer design of SPCE061A "; Adopt 16 single-chip microcomputer SPCE061A of Ling Yang as the control core; Utilize its UART effected network savvy; Be equipped with voice output circuit and key circuit and realize programing function, the realization state switches and the parameter setting.Realize voice broadcast through the voice output circuit; With one-wire bus digital temperature sensor DSl8820 is temperature element; Realized that voice broadcast temperature-measuring results, different conditions switch and the relevant parameter setting; And with the historical temperature variation curve of host computer on-line dispaly, networking realizes patient and medical personnel's isolation thermometric.Weak point is that the DS18B20 precision is low, needs to programme in strict accordance with its monobus lin protocol.Mercury clinical thermometer is prone to slippage, frangible being wrongly taken by children causes poisoning; Dysphotia person and the elderly be reading correctly; Neonate and young infant Measuring Time length are mismatched, the repeated measurement difficulty.Increased nursing work load and potential danger property virtually, influenced the timely grasp of medical personnel infant's state of an illness.

Summary of the invention:

The purpose of the utility model provides the intelligent measurement of bldy temperature instrument of a kind of low-power consumption, quick, voice broadcast, can instruct the intelligent clinical thermometer of body temperature the degree of heat classification.

Above-mentioned purpose realizes through following technical scheme:

a kind of intelligent clinical thermometer with low-power consumption voice broadcast; Its composition comprises: master controller; Described master controller one side connects voice announcer, button input unit and power supply, and described master controller one side connects LCD display and temperature sensor.

described intelligent clinical thermometer with low-power consumption voice broadcast; Described temperature sensor comprises AD590 temperature signal collection chip; Described temperature signal collection chip connects the MSP430F135 single-chip microcomputer as master controller of processes temperature signal, and described LCD display is that 1602 LCDs, described voice announcer are the ZY1420A pronounciation processing chip.

Beneficial effect:

1. the utility model have solved low-power consumption, voice broadcast and have instructed the classification of the body temperature numerical value the degree of heat of surveying, can be divided into normal, low-heat, middle heat, warning in various degree that height is warm.

the utility model passes through audio alert; Having solved needs to measure a large amount of patients and be applied to dysphotia person in the daily life, the elderly in hospital; Be particularly useful for measuring the neonate that can not cooperate and the problem of young infant, improved medical personnel's work efficiency.

The comparing with traditional mercury clinical thermometer of the utility model has advantage such as safe, quick, efficient and improves medical personnel's work efficiency greatly; Compare with present existing electronic thermometer have low-power consumption, meaning that low cost and having can instruct body temperature under the measured value.

the utility model only needs on display, to demonstrate numerical value several seconds when measuring; Precision (± 0.1 ℃), on average consume energy 2 μ A, show the classification (normal, low-heat, middle heat, high heat) of the degree of heat under this measurement numerical value simultaneously; Broadcast with the voice broadcast form through button; The high heat of severe can be sent " ticking " buzz and report to the police automatically, has the reminder alarm effect; The operation of this product, control, easy to use, safety is difficult for contaminated environment.

the utility model fast (3 second) carry out measurement of bldy temperature; Its output temperature adopts numeral to show; The buzz alarm is informed the measured body temperature numerical value and the basic, normal, high scope of affiliated heating thereof with the voice broadcast form; Can measured value be stored simultaneously, promptly have the memory storage function, help observing one day or body temperature situation of change within the next few days.

the utility model is compared with traditional mercury thermometer, has convenient measurement fast, safely, accurately, has the clinical thermometer of preventing damage and causes the mercury leakage hazard healthy.

the utility model can further reduce the quantity of peripheral component, and then reduces entire system power consumption and cost; Processor has jtag interface, and program debug is all very convenient with download, greatly reduces development difficulty.

Description of drawings:

accompanying drawing 1 is the structural representation of this product.

accompanying drawing 2 is single chip machine controlling circuit schematic diagrams in the accompanying drawing 1.

accompanying drawing 3 is ZY1420A voice module circuit diagrams in the accompanying drawing 1.

accompanying drawing 4 is temperature collection circuit schematic diagrams in the accompanying drawing 1.

accompanying drawing 5 is LCD display circuit schematic diagrams in the accompanying drawing 1.

accompanying drawing 6 is keyboard input circuits in the accompanying drawing 1.

accompanying drawing 7 is warning circuits in the accompanying drawing 1.

accompanying drawing 8 is the power circuit principle figure in the accompanying drawing 1.

Embodiment:

Embodiment 1:

a kind of intelligent clinical thermometer with low-power consumption voice broadcast; Its composition comprises: master controller 1; Described master controller one side connects voice announcer 2, button input unit 3 and power supply 4, and described master controller one side connects LCD display 5 and temperature sensor 6.

Embodiment 2:

embodiment 1 described master controller sends signal and gives described voice announcer; The power supply of described master controller is provided by described power supply; Described button input unit is controlled described master controller; Described temperature sensor is passed to described master controller with temperature measurement signal, and described master controller is given described LCD display with the gained signal.

Embodiment 3:

embodiment 1 or 2 described intelligent clinical thermometers with low-power consumption voice broadcast; Through temperature sensor AD 590 collecting temperature signal, temperature is handled, shown, reported, can realize reporting to the police when temperature surpasses setting value through pronounciation processing chip ZY1420A by LCDs 1602 by the MSP430F135 single-chip microcomputer.Controller uses single-chip microcomputer MSP430F135, and temperature probe uses AD590, and liquid crystal display uses 1602, pronounciation processing chip ZY1420A.

Embodiment 4:

embodiment 1 or 2 described intelligent clinical thermometers with low-power consumption voice broadcast; This product is selected TI (Texas Instruments for use; TIX) 16 single-chip microcomputers of the MSP430 of company series are as microprocessor; MSP430F135 has lower price, and the main cause of selecting this chip for use is that the MSP430 series monolithic is compared with other 16 bit processor and had super low-power consumption, thereby is fit to very much the harsh requirement of native system to power consumption.In addition, also integrated A/D in these processor chips, FLASH etc. are peripheral modules a lot.

this preparation implement has following characteristics.

instruction execution speed is fast.During the 8MHz clock frequency, instruction cycletime is 125ns, and most instructions were accomplished in a clock period.

have super low-power consumption.In WV is 3V, and when dominant frequency was 1MHz, consumed current was less than 400uA during operate as normal, and it is available that processor also has 5 kinds of different low-power consumption modes in addition, and after chip got into low-power consumption mode, the minimum of current sinking can drop to below the 1uA.

have on-chip memory.16K FLASH and 256 Byte RAM are arranged in the MSP430F135 sheet, be used for stored program instruction and data, be fit to computing fast.

have optional clock source.Chip has 3 crystal oscillators available; The clock source of chip periphery module and CPU can be selected in 3 crystal oscillators flexibly; According to the different working state is that CPU and peripheral module are selected different clock sources, can make the performance of chip perform to maximum, power consumption is reduced to minimum.

built-in chip type 12 digital to analog converter ADC12.

have the JTAG DLL, can be under the help of a PC and an easy jtag controller download, debugging and the emulation of completion program, develop very convenient.

The miniature voice recording-reproducing assembly of ZY1420A that pronounciation processing chip adopts Guangzhou Zhiyuan Electronics Co., Ltd. to produce; Its inner ISD1420 that uses possesses whole premium properties of ISD1420, like a large amount of EEROM storeies as main control chip; The microphone amplifier of de-noising; The dedicated voice filtering circuit, automatic gain is regulated agc circuit, the clock oscillation circuit of high stability and speech processing circuit etc.In addition its recording playback tonequality is splendid, does not have common ground unrest.The information that ZY1420A records leaves in the interior nonvolatile memory cell of sheet, can preserve for a long time after the outage.It uses the patent analog storage technology of ISD, and voice and sound signal directly store in the internal storage with original state without conversion, can realize high-quality speech reproduction.Inside circuit is made up of oscillator, voice memory unit, prime amplifier, automatic gain control circuit, anti-interference filter and output amplifier.The recording-reproducing system of a minimum only just can be made up of a microphone, loudspeaker, two buttons, a power supply.

Temperature sensor:

The electric current that AD590 produces is directly proportional with absolute temperature; Its receivable WV is 4V-30V, and the temperature range of detection is-55 ℃-+150 ℃, and it has extraordinary linear output performance; 1 ℃ of the every increase of temperature, its electric current increases 1uA.The relation of AD590 temperature and electric current is as shown in the table:

Celsius temperature	The AD590 electric current	Through 10K Ω voltage
			0℃	273.2 uA	2.732V
10℃	283.2 uA	2.832 V
			20℃	293.2 uA	2.932 V
30℃	303.2 uA	3.032 V
			40℃	313.2 uA	3.132 V
50℃	323.2 uA	3.232 V
			60℃	333.2 uA	3.332 V
100℃	373.2 uA	3.732 V

are the current-output type temperature sensors of ADI, and power supply voltage range is 3-30V, output current 223 μ A (50 ℃)-423 μ A (+150 ℃), and sensitivity is 1 μ A/ ℃.When serial connection sampling resistor R in circuit, the voltage at R two ends can be used as output voltage.AD590 output current signal transmission range can reach more than the 1km.Utilize the AD590 temperature sensor to accomplish the measurement of temperature, send into MSP430F135 to the analog quantity of the temperature value of conversion, the result who changes is carried out sending into liquid crystal display after the temperature value conversion.

The effect of temperature detection, amplifying circuit main devices: OP1: voltage follower; OP2: voltage follower; OP3: differential amplifier circuit; AD590: temperature sensor; SVR: zero-bit adjustment.

Liquid crystal display circuit:

Advantages such as LCD (LCD) is little, in light weight owing to volume, power consumption is little have become the desirable display commonly used of various embedded systems.

character-type liquid crystal display module is to be specifically designed to the lattice type LCD that shows letter, numeral, symbol etc.The operation of the read-write operation of 1602 Liquid Crystal Modules, screen and cursor all realizes through instruction programming.The display part is the classification of measured temperature values and the degree of heat.

keyboard is interactive input equipment, through keyboard systematic parameter can be set, the control system operation.The needed button of native system is less, so adopt free-standing button to realize that one is storage key, one is the temperature survey key, and one is the voice broadcast key.

Warning circuit:

" ticking " buzz can be sent automatically in when body temperature numerical value surpasses 39.5 ℃, to point out.

Power circuit:

power unit is a pith of electronic thermometer, and the quality of its performance is with the work that directly influences each several part.As the power supply of total system, it can provide 4 fixed voltage 12V, 5V, 3.3V and-5V.

Claims

1. intelligent clinical thermometer with low-power consumption voice broadcast; Its composition comprises: master controller; It is characterized in that: described master controller one side connects voice announcer, button input unit and power supply, and described master controller one side connects LCD display and temperature sensor.

2. According to claim 1Have the intelligent clinical thermometer of low-power consumption voice broadcast, it is characterized in that: described Temperature sensor comprises AD590 temperature signal collection chip,Described The temperature signal collection chip connects the MSP430F135 single-chip microcomputer as master controller of processes temperature signal, and is describedLCD display does 1602 LCDs, describedVoice announcer does The ZY1420A pronounciation processing chip.