CN2569117Y

CN2569117Y - Cold preventing instrument

Info

Publication number: CN2569117Y
Application number: CN 02260278
Authority: CN
Inventors: 宋光华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-24
Filing date: 2002-09-24
Publication date: 2003-08-27
Anticipated expiration: 2012-09-24

Abstract

The utility model relates to a cold preventing instrument in the field of a medical instrument, which aims at children's body temperature to alarm. As resistance value is big, only one preset temperature can be controlled, the temperature can not be adjusted and controlled according to the changes of air temperature, and alarm is delayed. The utility model is characterized in that a micro computer control system IC#-[1] is respectively provided with a liquid crystal display screen LCD, a time set circuit and a sound alarming circuit; a on-off key, a time display, a room temperature display when a machine is started, a time correcting keyboard, a time set key, a body temperature display and a display for low battery electric quantity are arranged on the front surface of the cold preventing instrument; a skin sensor is connected to a leading out line on the top part of the cold preventing instrument. When temperature is measured, the cold preventing instrument is fixed on any position of the inner surface of underclothes by a metal spring clamp; so long as the skin sensor can contact to skin, and the body temperature can be detected. When a child has low body temperature, the cold preventing instrument can send out 'toot-toot ' sounds; when the child has high body temperature, the cold preventing instrument sends out 'toot' long sounds. The utility model is suitable for detecting low or too high body temperature of children, has complete functions, and reflects visually.

Description

The flu prevention instrument

Affiliated technical field

The utility model relates to medical Instrument field, and a kind of children's body temperature that belongs to microcomputerized control mensuration body temperature is suffered from cold or Hyperthermic alarm.

Background technology

At present existing technology report of reporting to the police about children's's body temperature, its technology adopts thermistor sensing body temperature more, reports to the police by resistance value size trigger pip, reaches to prevent children's preventing cold of catching a cold.But its defective is: can only control a design temperature because of the resistance value comparison, can not adjust control temperature, presignal delay according to temperature Change.

Summary of the invention

The flu prevention instrument adopts micro-computer technology at above-mentioned defective, and liquid crystal display shows, adopts the Cu50 sensor of national standard to survey body temperature simultaneously, and identification body temperature precision height reaches intelligent prevention effect fully.

The physical circuit of flu prevention instrument is achieved in that central authorities' control employing microcomputer control system, and peripheral each functional circuit comprises: body temperature acquisition system, room temperature acquisition system, voltage detecting system, liquid crystal display circuit, time setting circuit, audible alarm circuit; Peripheral each functional circuit is all by central microcomputer control system unified management and co-ordination.

Described flu prevention instrument, microcomputer control system IC ₁, there is working routine memory, A/D converter, timing circuit, the watchdog circuit of 4K its inside, can be according to contact button AN ₁Instruction shutdown, start; Can report to the police from the prevention temperature spot of motion tracking the best according to the variation of room temperature and body temperature; Can remind children's fever by overtemperature alarm; Can be to peripheral fault self diagnosis, and point out with " Err ".

Described flu prevention instrument, the body temperature acquisition system, it is by R ₄, R ₅, R ₆, R ₇The bridge circuit of forming becomes electric signal with temperature transition, through IC ₂Difference is sent into microcomputer control system after amplifying.Temperature sensor R ₅Be the Cu50 of national standard.

Described flu prevention instrument, room temperature sampling system, itself and body temperature sampling system IC ₂Shared, time-sharing work is just measured room temperature in start in 10 seconds, then take temperature.

Described flu prevention instrument, voltage detecting system, cell voltage one tunnel is through R ₁₀, D ₁Comparer IC is delivered in voltage stabilizing ₃Input (+), another road is through R ₁₁, R ₁₂Divide and be sent to comparer IC ₃Input (-), when battery capacity deficiency (voltage is low), comparer IC ₃The output high level signal is sent into microcomputer system, shows that by microcomputer system control liquid crystal display battery electric quantity is low.

Described flu prevention instrument, liquid crystal display circuit comprises liquid crystal display and liquid crystal display drive circuit, liquid crystal display can show room temperature, body temperature, real-time time (time, branch), the low sign of battery electric quantity simultaneously.

Described flu prevention instrument, time setting circuit is by AN ₂, AN ₃Two contact buttons are calibrated the inner real-time clock of micro computer.

Described flu prevention instrument, the audible alarm circuit is when microcomputer control system has determined the flu possibility, from pin 13 output alarm signals, through R ₁₄, R ₁₅, V ₂After signal amplifies, drive buzzer Y and report to the police.

Its principle of work is: body temperature trans is measured the body temperature of gained and room temperature data through the microcomputer control system reasoning from logic, if leant out flu may the time, the warning of then sounding.

It catches a cold prevention instrument compared with prior art, intelligent degree height, and inner establishment expert system prevention safety and reliability adopts the large-size screen monitors liquid crystal display, and volume is little, easy to use, and is both artistic and practical.

Description of drawings

Fig. 1 is the principle of work block diagram of flu prevention instrument;

Fig. 2 is the circuit diagram of flu prevention instrument;

Fig. 3 is the outside drawing of flu prevention instrument, sequence number among this figure and title: 1, on ﹠ off switch, 2, time showing, 3, the start room temperature shows, 4, time adjustment key, 5, the time set key, 6, body temperature shows, 7, battery electric quantity is low shows, 8, alarm, 9, skin sensor, 10, battery case.

Embodiment

A kind of flu prevention instrument comprises microcomputer control system IC ₁Body temperature acquisition system IC ₂, room temperature acquisition system, voltage detecting system IC ₃, it is characterized in that microcomputer control system IC ₁Be arranged with LCDs LCD, time setting circuit, audible alarm circuit; Be provided with on ﹠ off switch 1, time showing 2, start room temperature demonstration 3, time adjustment keyboard 4, time set key 5, body temperature demonstration 6, the low demonstration of battery electric quantity in the prevention instrument front of catching a cold, be connected with skin sensor 9 in the extension line at its top, the back side is provided with battery case.

Described microcomputer control system IC ₁Inside is provided with working routine memory, A/D converter, timing circuit, the watchdog circuit of 4K, prevention body temperature point warning circuit, fault diagnosis circuit.

Described body temperature acquisition system IC ₂With the same circuit of room temperature acquisition system, respectively take temperature, room temperature are and by R ₄, R ₅, R ₆, R ₇Form bridge circuit and be connected, temperature transition is become electric signal, input microcomputer control system IC after difference is amplified ₁

Described voltage detecting system IC ₃Electrode input end and R ₁₀, D ₁Connect negative input and R ₁₁, R ₁₂Connect, output terminal is connected with high level signal, LCDs, when battery electric quantity is not enough, and voltage detecting system IC ₃The output high level signal by the microcomputerized control LCDs, shows the not enough symbol of electric weight.Liquid crystal display circuit comprises that LCDs receives microcomputer control system IC by HT1621 ₁Signal.

One, does skin temperature transducer with national standard Cu50, utilize the metal spring clip to be fixed on any position of underwear inner face, as long as skin temperature transducer can be pressed close to skin and can detect body temperature.

Two, after skin temperature transducer detects body temperature, convert electric signal to, send into single-chip microcomputer (micro computer) routine processes after amplifying by amplifying circuit again through bridge circuit.

Three, single-chip microcomputer receives body temperature, behind the room temperature signal, deliver to liquid crystal display and show that it is that body temperature shows 6 that body temperature, room temperature, the lower left corner mixed decimal surveyed are put three figure places, start room temperature when upper right corner two-digit integer is start shows 3, LCDs also can show following signal: 1, Beijing time, two buttons in the free error left side can be proofreaied and correct.2, battery is under-voltage, and when battery used electric weight and exhausts, the demonstration battery under-voltage signal can glimmer.3, this machine has fault self-diagnosis function, breaks down to show " Err " error signal.

Four, right button is an operating switch, and flicking is once just started working, and LCDs shows measured temperature, after single-chip microcomputer is accepted body temperature, room temperature signal, handle through internal processes, differentiating catches a cold can send " too-too " sound, differentiate heating and then send " toot-toot " long sound.

Claims

1. a flu prevention instrument comprises microcomputer control system IC ₁Body temperature acquisition system IC ₂, room temperature acquisition system, voltage detecting system IC ₃, it is characterized in that microcomputer control system IC ₁Be arranged with LCDs LCD, time setting circuit, audible alarm circuit; Be provided with on ﹠ off switch (1), time showing (2), the demonstration of start room temperature (3), time adjustment keyboard (4), time set key (5), body temperature demonstration (6), the low demonstration of battery electric quantity in the prevention instrument front of catching a cold, be connected with skin sensor (9) in the extension line at its top, the back side is provided with battery case.

2. flu prevention instrument according to claim 1 is characterized in that microcomputer control system IC ₁Inside is provided with working routine memory, A/D converter, timing circuit, the watchdog circuit of 4K, prevention body temperature point warning circuit, fault diagnosis circuit.

3. flu prevention instrument according to claim 1 is characterized in that body temperature acquisition system IC ₂With the same circuit of room temperature acquisition system, and by R ₄, R ₅, R ₆, R ₇Forming bridge circuit is connected.

4. flu prevention instrument according to claim 1 is characterized in that voltage detecting system IC ₃Electrode input end and R ₁₀, D ₁Connect negative input and R ₁₁, R ₁₂Connect, output terminal is connected with high level signal, LCDs.