CN2301979Y - Electronic basic thermometer - Google Patents

Abstract

The utility model relates to an electronic basic thermometer, which is composed of an oscillator divider 1, a single-chip microcomputer 2, a liquid crystal driver 3, a liquid display screen 4, an RC oscillator 5, a vibrating bell circuit 6, a keyboard 7, a temperature sensor 8, a nand gate 9, a cell detection circuit 11, a housing 12, etc. The thermometer is used for measuring the female body temperature, and the information of easy gestational period, contraception period, menstruation period, early pregnancy, yellow body dysfunction, body temperature, etc. are displayed by figures and characters on the liquid display screen. Compared with the prior art, the utility model has the advantages of easy use, timely measuring, non missed measuring, visual display, and convenient carrying.

Description

Electronics basal body temperature meter

This utility model relates to the electronic clinical thermometer that a kind of numeral shows.

Measure the body temperature when just having waken up early morning every day, can reflect the cycle activity of women's vitals one ovary comparatively objectively.If the women of child-bearing age want onset of ovulation, menstruation arriving phase of judging with the method for Fundamentals of Measurement body temperature oneself etc., general way is: the back of getting up every day is with the clinical thermometer take temperature, keep a record with paper and pen, and to the record data analyze, just can draw relevant conclusion.Do not only bothering but also uninteresting like this, and as if do not measure or forget that measurement also can influence the accuracy of conclusion on time, so most of people is difficult to accomplish or adheres to for a long time getting off.At present commercially available electronic clinical thermometer can not be reminded women of child-bearing age's take temperature on time, and basal body temperature numerical value that can not the automatically and continuously recording several months can not show the information relevant with basal body temperature.

The purpose of this utility model is to propose a kind of electronic clinical thermometer, this clinical thermometer can be reminded women of child-bearing age's Fundamentals of Measurement body temperature on time, and the basal body temperature numerical value of automatically and continuously recording several months, the onset of ovulation, the menstruation that are calculated the women by single-chip microcomputer are arrived the phase, and show with figure, character and the information such as phase, early pregnancy, luteal function be unusual of arriving easy pregnancy period, contraception phase, menstruation the user to be come into plain view.

The purpose of this utility model is achieved in that a kind of electronic clinical thermometer, by oscillator divider 1, single-chip microcomputer 2, liquid crystal driver 3, LCDs 4, RC agitator 5, quarter-bell circuit 6, keyboard 7, temperature sensor 8, NAND gate 9, battery detection circuit 11 are formed, the outfan of the fundamental frequency of this oscillator divider, 9 frequency divisions, 14 frequency divisions, link to each other with the outer vibration input of single-chip microcomputer 2, an I/O mouth, a counting input end respectively, 9 frequency division output terminal also link to each other with the driving signal input of liquid crystal driver 3; RC agitator 5 is used for thermometric, the control end of this agitator, outfan link to each other with an I/O mouth of single-chip microcomputer 2, a counting input end respectively, temperature sensor 8 is connected in the oscillation circuit of RC agitator 5, the dual serial mouth of single-chip microcomputer 2 links to each other with data terminal, the displacement control end of liquid crystal driver 3 respectively, an I/O mouth links to each other with quarter-bell circuit 6, three I/O mouths link to each other with keyboard 7, and two inputs of single-chip microcomputer 2 internal simulation comparators link to each other with battery detection circuit 11.Having worked out the user in the program of single-chip microcomputer 2 can make quarter-bell circuit 6 send the sound by real-time clock, the alarm clock of keyboard 7 settings to naming a person for a particular job, remind user's take temperature.14 frequency division output terminal of oscillator divider 1 are supplied with the required count pulse of real-time clock.Temperature sensor 8 is a critesistor, when its resistance varies with temperature, to cause the variation of agitator 5 output frequencies, detect the output frequency of agitator 5 with single-chip microcomputer 2, and by liquid crystal driver 3 on LCDs 4, shows the correspondence temperature, simultaneously also with this temperature value with leave a few days ago comparing, analyzing to the measurement of bldy temperature value of front several months in the single-chip microcomputer 2 in, on LCDs, show information such as easy pregnancy period, contraception phase, menstruation arriving phase, early pregnancy, luteal function be unusual then with figure, character.

This utility model advantage compared with the prior art is, the user if hear quarter-bell make a noise ring after, take temperature get final product, other work is all finished by single-chip microcomputer, thereby easy to use, measures on time, can test leakage, and intuitive display, easy to carry.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a circuit diagram of the present utility model.

Fig. 2 is an outline drawing of the present utility model.

Referring to accompanying drawing 1,2, electronic clinical thermometer of the present utility model, oscillator divider 1 (model 4060) is arranged, single-chip microcomputer 2 (model AT89C2051), liquid crystal driver 3 (model KS0065B), LCDs 4, RC agitator 5 (model 74HC00), compositions such as quarter-bell circuit 6, keyboard 7, temperature sensor 8, NAND gate 9,10, battery detection circuit 11.The fundamental frequency outfan COUT of oscillator divider 1 links to each other with the outer vibration input XTAL1 of single-chip microcomputer 2, supplies with single-chip microcomputer 2 outer oscillator signals; 9 frequency division output terminal Q9 of oscillator divider 1 link to each other with the driving signal input M of liquid crystal driver 3, supply with liquid crystal driver 3 and exchange the driving signal, this end also links to each other with the P1.7 of single-chip microcomputer 2 simultaneously, so that single-chip microcomputer 2 can detect the signal of this end, 9 frequency division output terminal Q9 of oscillator divider 1 also link to each other with an end of NAND gate 9, the other end of NAND gate 9 meets the P1.4 of single-chip microcomputer 2, P1.4 output video data latch signal, do to make being added in liquid crystal driver 3 to latch the signal of end on the CL1 accurately synchronous with the signal that M holds like this, avoid direct current signal to be added on the LCDs.NAND gate 10 is connected into phase inverter, sends into the COM end of LCDs 4 after the signal inversion with the M of liquid crystal driver 3 end, makes LCDs 4 obtain required interchange and drives signal; 14 frequency division output terminal Q14 of oscillator divider 1 link to each other with the counting input end P3.4 of single-chip microcomputer 2, supply with the required count pulse of single-chip microcomputer 2 inner real-time clocks; RC agitator 5 is used for thermometric, and the control end of this agitator links to each other with the P1.6 of single-chip microcomputer 2, and whether RC agitator 5 vibrates and controlled by P1.6; The outfan of RC agitator 5 links to each other with the P3.5 of single-chip microcomputer 2, and single-chip microcomputer 2 is counted the pulse of the output of RC agitator 5 by this mouthful, cooperates with the P3.3 mouth to determine frequency.Temperature sensor 8 is a critesistor, is connected in the oscillation circuit of RC agitator 5, and the variation of its resistance will cause the variation of RC agitator 5 output frequencies, i.e. the variation of the variation corresponding temperature of this frequency.The serial port P3.0 of single-chip microcomputer 2 links to each other with the data terminal of liquid crystal driver 3, P3.1 links to each other with the displacement control end of liquid crystal driver 3, single-chip microcomputer 2 sends video data to liquid crystal driver 3 by this dual serial mouth, shows character, figure to drive LCDs 4.The P1.3 mouth of single-chip microcomputer 2 links to each other with quarter-bell circuit 6, and quarter-bell is controlled; P3.2 mouth, P1.5 mouth, P1.1 mouth link to each other with S1, S2, the S3 key of keyboard 7 respectively, and the user can be provided with clock and alarm clock and other functions by these keys.Having worked out in the program of single-chip microcomputer 2 can be by real-time clock, the alarm clock of outer setting, quarter-bell circuit 6 will be made a noise to be rung, remind user's take temperature on time, measurement finishes, LCDs 4 shows corresponding temperature, simultaneously single-chip microcomputer 2 also with this temperature value with leave a few days ago comparing, analyzing to the measurement of bldy temperature value of earlier month among its RAM in, on LCDs, demonstrate easy pregnancy period, contraception phase, menstruation arriving phase, early pregnancy, luteal function then and reach information such as abnormal body temperature unusually with figure, character.The P1.1 of single-chip microcomputer 2, P1.0 link to each other with battery detection circuit 11 with the P3.7 mouth, P3.7 is a low level when detecting cell voltage, this moment is if the level of P1.1 end is higher than the level of P1.0, the upset of single-chip microcomputer 2 internal simulation comparators, illustrating needs to change battery, at this moment, single-chip microcomputer 2 will make LCDs 4 show the figure of changing battery, remind the user in time more to renew battery.

Fig. 3 is outline drawing of the present utility model, and 12 is shell among the figure, and 8 is the temperature sensing Device, 7 is keyboard, and 6 are the bell that makes a noise, and 4 is LCDs.

Claims (1)

1, a kind of electronic clinical thermometer, its characteristic is: by oscillator divider 1, single-chip microcomputer 2, liquid crystal driver 3, LCDs 4, RC agitator 5, quarter-bell circuit 6, keyboard 7, temperature sensor 8, NAND gate 9, battery detection circuit 11 are formed, the outfan of the fundamental frequency of this oscillator divider, 9 frequency divisions, 14 frequency divisions, link to each other with the outer vibration input of single-chip microcomputer 2, an I/O mouth, a counting input end respectively, 9 frequency division output terminal also link to each other with the driving signal input of liquid crystal driver 3; RC agitator 5 is used for thermometric, the control end of this agitator, outfan link to each other with an I/O mouth of single-chip microcomputer 2, a counting input end respectively, temperature sensor 8 is connected in the oscillation circuit of RC agitator 5, the dual serial mouth of single-chip microcomputer 2 links to each other with data terminal, the displacement control end of liquid crystal driver 3 respectively, an I/O mouth links to each other with quarter-bell circuit 6, three I/O mouths link to each other with keyboard 7, and two inputs of single-chip microcomputer 2 internal simulation comparators link to each other with battery detection circuit 11.

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