CN206792392U - Body temperature measuring instrument - Google Patents
Body temperature measuring instrument Download PDFInfo
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- CN206792392U CN206792392U CN201720011164.3U CN201720011164U CN206792392U CN 206792392 U CN206792392 U CN 206792392U CN 201720011164 U CN201720011164 U CN 201720011164U CN 206792392 U CN206792392 U CN 206792392U
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Abstract
The utility model embodiment provides a kind of body temperature measuring instrument, and it includes：Earplug is popped one's head in and radio transmitter, the pleasant end of the earplug probe is provided with temperature sensor, the temperature sensor is connected with the radio transmitter, the earplug probe, which can be inserted into, to be measured in the external auditory meatus of human body so that the temperature sensor in earplug probe is isolated from the outside, the temperature of external auditory meatus is with electric signal output described in the earplug probe measurement, it is achieved thereby that being measured in the relatively closed environment of external auditory meatus to body temperature, the accuracy of temperature survey is added.
Description
Technical field
The utility model embodiment is related to measurement of bldy temperature technical field, more particularly to a kind of body temperature measuring instrument.
Background technology
In four big vital signs (T, P, R, Bp), body temperature is come most anteposition one, and measurement of bldy temperature can be used directly
Prevention, diagnosis in clinical disease.
The conventional method of measurement of bldy temperature has oral cavity mensuration, oxter mensuration, ear temperature measurement method etc..For oral cavity measurement
Thermometer is oral thermometer, and for the thermometer for oxter measurement armpit table, the thermometer for ear temperature measurement is mainly infrared ear thermometer.
The mercury in thermometer should be all got rid of before measuring to less than 35 DEG C using the metering system of clinical thermometer.
The specific method for measuring body temperature is as follows：
(1) oral cavity mensuration：Oral thermometer is sterilized, dried, it is sublingual that mercury head end is put in into patient, allows patient to close lip,
It is sure not to bite with the teeth, does not also speak, in case thermometer is bitten into pieces or come off.Taken out after 3 minutes, it is at light, thermometer is horizontal
Hold, and slowly rotate, observe scale where the mercury of horizontal line position.Normal oral temperature is 36.2~37.2 DEG C.
(2) oxter mensuration：Patient oxter is dried, armpit table is gently put into patient oxter, mercury head end is located at armpit
Top, allow patient clamp armpit.Taken out after 5~10 minutes, the same oral thermometer of inspection method.Normal axillaty temperature is 36~37 DEG C.
(3) ear temperature measurement method：The mode for being adopted as infrared ear thermometer at present measures, and infrared ear thermometer is that heat radiation is former
Reason, is influenceed by environment temperature, light intensity, distance and cutaneous roughness of measured etc., and precision is poor.Also there is very small amount
Ear temperature measurement is carried out using clinical thermometer, but due to external auditory meatus and the air circulation of external environment condition, test result is compared with actual result
It is relatively low.
But no matter which kind of above-mentioned measurement scheme, i.e., can not be one because environment and the external world of measurement of bldy temperature are not isolated
The measurement carried out in individual relatively closed environment, so as to cause the accuracy of measurement of bldy temperature relatively low.
Utility model content
In view of this, one of technical problem that the utility model embodiment solves is to provide a kind of body temperature measuring instrument,
To overcome defect in the prior art.
The utility model embodiment provides a kind of body temperature measuring instrument, and it includes：Earplug is popped one's head in and radio transmitter, described
The pleasant end of earplug probe is provided with temperature sensor, and the temperature sensor is connected with the radio transmitter, the ear
Plug probe, which can be inserted into, is measured in the external auditory meatus of human body the temperature sensor and external environment so that in earplug probe
Isolation, the temperature of external auditory meatus described in the earplug probe measurement is with electric signal output, and by the radio transmitter to institute
State electric signal and carry out analog-to-digital conversion to launch.
Alternatively, in another embodiment of the application, the earplug probe includes body, supporting construction and is arranged on
Temperature sensor on body end face, the body are arranged on the nearly ear end in the supporting construction.
Alternatively, in another embodiment of the application, the body is elastic heat-insulated body, for blocking due to ear
Type of thermal communication caused by external environment temperature and Er Nei temperature-differences, the temperature sensor are embedded in the heat-insulated body and exposed
At one end on face so that the temperature sensor can be inserted into the external auditory meatus of measured human body.
Alternatively, in another embodiment of the application, the elastic heat-insulated body is measured the outer of human body in insertion
Volume is changed from small to big until be fully bonded the external auditory meatus inwall is thermally isolated effect to reach during duct.
Alternatively, in another embodiment of the application, the radio transmitter is encapsulated in a circular arc shell, institute
State after earplug probe insertion is measured in the external auditory meatus of human body and be located in auricle.
Alternatively, in another embodiment of the application, the output line of the temperature sensor is arranged on the ear
In the supporting construction for filling in probe, and it is connected with radio transmitter.
Alternatively, in another embodiment of the application, the radio transmitter include bluetooth module, zigbee,
LoRa or WIFI module, to launch the electric signal after analog-to-digital conversion process.
Alternatively, in another embodiment of the application, the temperature sensor is thermistor；Accordingly, the nothing
Line radiating circuit includes signal processing circuit, for the resistance value conversion for having the thermistor in real time during thermometric
For analog voltage signal.
Alternatively, in another embodiment of the application, the radio transmitter also includes wave filter, the wave filter
Electrically connected with the signal processing circuit, the analog voltage signal for handling to obtain to the signal processing circuit is filtered
Ripple processing therefrom filters out interference signal.
Alternatively, in another embodiment of the application, the radio transmitter also includes：A/D convertor circuit, it is described
A/D convertor circuit is connected with the wave filter, is turned for carrying out modulus to the analog voltage signal for filtering out the interference signal
Get the data signal of corresponding measured temperature in return.
Alternatively, in another embodiment of the application, the radio transmitter also includes microprocessing unit, and described
A/D convertor circuit connects, for calculating the actual numerical value of measured temperature according to the data signal of corresponding measured temperature.
Alternatively, in another embodiment of the application, the microprocessing unit is further used for calculating measured temperature
Actual numerical value when, the data signal of measured temperature is compensated according to predetermined temperature compensation model with calculate surveyed
The actual numerical value of temperature.
Alternatively, in another embodiment of the application, the radio transmitter also includes：Radio-frequency modulations demodulation electricity
Road, it is connected with the microprocessing unit, for being modulated into high frequency carrier letter to the actual numerical value digital electric signal of measured temperature
Number.
Alternatively, in another embodiment of the application, the radio transmitter also includes：Low-noise amplifier and
Power amplifier, the low-noise amplifier are connected with the microprocessing unit, for being obtained from the high-frequency carrier signal
Take the actual numerical value digital electric signal of measured temperature；The power amplifier is connected with the low-noise amplifier, for right
The actual numerical value digital electric signal of measured temperature carries out power amplification to launch.
From above technical scheme, body temperature measuring instrument in the utility model embodiment, it includes：Earplug is popped one's head in and wireless
Radiating circuit, the pleasant end of the earplug probe are provided with temperature sensor, the temperature sensor and wireless transmission electricity
Road connects, and the earplug probe, which can be inserted into, is measured in the external auditory meatus of human body the TEMP so that in earplug probe
Device is isolated from the outside, and the temperature of external auditory meatus is with electric signal output described in the earplug probe measurement, and passes through the wireless transmission
Circuit carries out analog-to-digital conversion to the electric signal to launch, it is achieved thereby that to body in the relatively closed environment of external auditory meatus
Temperature measures, and adds the accuracy of temperature survey.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments described in the utility model embodiment, for those of ordinary skill in the art, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of body temperature measuring instrument structural representation that the utility model embodiment one provides；
Fig. 2 is the structural representation of the radio transmitter of the embodiment of the present application two；
Fig. 3 is the structural representation of the signal processing unit of the embodiment of the present application three；
Fig. 4 is the structural representation of the wave filter of the embodiment of the present application four；
Fig. 5 is the principle schematic that digital filtering is realized in the embodiment of the present application five；
Fig. 6 is the structural representation of the A/D convertor circuit of the embodiment of the present application six；
Fig. 7 is the AD conversion waveform diagram of the embodiment of the present application seven；
Fig. 8 is that the structure of radio-frequency modulations demodulator circuit and low noise wave filter, power amplifier in the embodiment of the present application eight is shown
It is intended to.
Embodiment
Certainly, any technical scheme for implementing the utility model embodiment it is not absolutely required to the institute for reaching the above simultaneously
There is advantage.
In order that those skilled in the art more fully understand the technical scheme in the embodiment of the utility model, below in conjunction with this
Accompanying drawing in utility model embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, and shows
So, described embodiment is only the utility model embodiment part of the embodiment, rather than whole embodiments.Based on this reality
The every other embodiment obtained with the embodiment in new embodiment, those of ordinary skill in the art, it should all belong to this
The scope of utility model embodiment protection.
Further illustrate that the utility model embodiment implements with reference to the utility model embodiment accompanying drawing.
Body temperature measuring instrument in the utility model embodiment, it includes：Earplug is popped one's head in and radio transmitter, and the earplug is visited
The pleasant end of head is provided with temperature sensor, and the temperature sensor is connected with the radio transmitter, the earplug probe
So that the temperature sensor in earplug probe is isolated from the outside in the external auditory meatus of pluggable measured human body, the ear
The temperature of external auditory meatus described in probe measurement is filled in electric signal output, and the electric signal is carried out by the radio transmitter
Analog-to-digital conversion, it is achieved thereby that being measured in the relatively closed environment of external auditory meatus to body temperature, adds temperature to launch
Spend the accuracy of measurement.
Fig. 1 is a kind of body temperature measuring instrument structural representation that the utility model embodiment one provides；As shown in figure 1, it is wrapped
Include：Earplug probe 101 and radio transmitter 102, the pleasant end of the earplug probe 101 are provided with temperature sensor 121, institute
State temperature sensor 121 to be connected with the radio transmitter 102, the earplug probe 101 can be inserted into the outer of measured human body
So that the temperature sensor 121 in earplug probe 101 is isolated from the outside in duct, the measurement of earplug probe 101
The temperature of the external auditory meatus is carried out modulus to the electric signal by the radio transmitter 102 and turned with electric signal output
Change to launch.Specifically, for example the radio transmitter 102 includes bluetooth module, zigbee, LoRa or WIFI module,
To launch the electric signal after analog-to-digital conversion process.
In the present embodiment, the earplug probe 101 includes body (not shown), supporting construction 111 and is arranged on
Temperature sensor 121 on body end face, the body are arranged on the nearly ear end in the supporting construction 111.
In the present embodiment, the body is elastic heat-insulated body, for blocking the type of thermal communication of environment and Er Nei temperature, institute
Temperature sensor 121 is stated to be embedded in the heat-insulated body and exposed at one end on face.
In the present embodiment, the elastic heat-insulated body insertion be measured human body external auditory meatus during volume by small change
It is big that effect is thermally isolated to reach up to being fully bonded the external auditory meatus inwall.
In the present embodiment, the radio transmitter 102 is encapsulated in a circular arc shell, and the earplug probe 101 is inserted
It is located at after entering in the external auditory meatus of measured human body in auricle.
In the present embodiment, the output line of the temperature sensor 121 is arranged on the support knot of the earplug probe 101
In structure 111, and it is connected with radio transmitter 102.
In the present embodiment, because the supporting construction 111 is rigid structure, so as to increase the branch to earplug probe 101
Support, will not be deformed when inserting duct because of resistance so that operation is more convenient.At the same time, due on earplug probe 101
There is provided flexible heat-barrier material, on the one hand can ensure that earplug probe 101 is fully bonded with external auditory meatus, increase is closed
Property；Further, since being heat-barrier material, so that earplug probe 101 is enclosed in external auditory meatus, it is isolated from the outside, so as to increase
The accuracy of temperature survey.
Specifically, the body is the silica gel of elasticity or similar cavernous body etc., when in use, pinched in advance
Volume is minimum, more easily inserts in external auditory meatus, recovers deformation behavior due to the body, be gradually restored to normal shape
Shape, so as to realize that earplug probe 101 is fully bonded with external auditory meatus, increase seal and increase the accuracy of temperature survey.
In the present embodiment, because wireless signal transmission circuit 102 is arranged on the outside of supporting construction 111, and the support knot
Structure 111 is located in auricle when carrying out measurement of bldy temperature, and therefore, the transmission of signal will not be blocked, and is passed so as to improve signal
Defeated intensity.
Fig. 2 is the structural representation of the radio transmitter of the embodiment of the present application two；As shown in Fig. 2 in the present embodiment, with institute
Temperature sensor is stated as exemplified by thermistor, the radio transmitter can specifically include：Signal processing circuit, wave filter,
A/D convertor circuit, microprocessing unit MCU, radio-frequency modulations demodulator circuit, low-noise amplifier (LNA) and power amplifier
(PA).The specific function of above-mentioned part that radio transmitter includes is as follows in detail：
Signal processing circuit is connected with the thermistor, for the thermistor is had in real time during thermometric
Some resistance values are converted into analog voltage signal.
Wave filter electrically connects with the signal processing circuit, for the simulation for handling to obtain to the signal processing circuit
Voltage signal is filtered processing and therefrom filters out interference signal.
A/D convertor circuit (ADC) is connected with the wave filter, for the analog voltage to filtering out the interference signal
Signal carries out analog-to-digital conversion and obtains the data signal of corresponding measured temperature.
Microprocessing unit (MCU) is connected with the A/D convertor circuit, for the data signal according to corresponding measured temperature
Calculate the actual numerical value of measured temperature.Specifically, the microprocessing unit is further used for calculating the actual number of measured temperature
During value, the data signal of measured temperature is compensated according to predetermined temperature compensation model to calculate the reality of measured temperature
Border numerical value.In the present embodiment, microprocessing unit can select conventional MCU, such as 8 8-digit microcontroller AM1 (MN101), in detail
Repeat no more.Specifically, when being compensated to testing temperature, if it is considered that the circumstance of temperature difference inside and outside ear, if inside and outside ear
Circumstance of temperature difference it is bigger, then compensation when, larger compensation rate can be used, otherwise can use less compensation rate.In order to
Environment temperature outside ear can be monitored, in the present embodiment, can specifically increase a temperature on the shell of encapsulation main frame
Sensor, for sensing the environment temperature outside ear, so as to carry out mathematic interpolation with the temperature sensor measured temperature in ear.
Radio-frequency modulations demodulator circuit is connected with the microprocessing unit, for the actual numerical value numeral electricity to measured temperature
Signal modulation is into high-frequency carrier signal.
The low-noise amplifier (Low Noise Amplifier, LNA) is connected with the microprocessing unit, for
The actual numerical value digital electric signal of measured temperature is obtained from the high-frequency carrier signal；Power amplifier (the Power
Aamplifier, PA) it is connected with the low-noise amplifier, for being carried out to the actual numerical value digital electric signal of measured temperature
Power amplification is to launch.
Fig. 3 is the structural representation of the signal processing unit of the embodiment of the present application three；As shown in figure 3, in the present embodiment, signal
Processing unit include measurement resistance R18 (first resistor), R19 (second resistance), R20 (3rd resistor), R21 (the 4th resistance),
R22 (the 5th resistance), R24 (the 6th resistance) and two thermistor NTC (thermistors of XS5- first, the temperature-sensitives of XS3- second
Resistance), its annexation is as follows：Thermistor XS5 one end (2 represent i.e. in figure) is connected, thermistor with R18 one end
XS5 other end (1 represents i.e. in figure) is connected to ground, and R22 one end and R19 one end connect, and the R22 other end and ground connect
Connect, R19 other end and R18 other end connect, and are connected to power supply AVCC, so as to form XS5 measurement path.
Similarly, thermistor XS3 one end (2 represent i.e. in figure) is connected with R20 one end, and thermistor XS5 is in addition
One end (1 represents i.e. in figure) is connected with ground (DGND), and R24 one end and R21 one end are connected, and the R24 other end is connected to ground,
R21 other end and R20 other end connect, and are connected to power supply AVCC, so as to form XS3 measurement path.
R18 (first resistor), R19 (second resistance), R20 (3rd resistor), R21 (the 4th resistance) in foregoing circuit
One end is commonly connected to same voltage source AVCC, R22 (the 5th resistance), R24 (the 6th resistance) one end common ground.
(XS5 path measurement resistance is R18, R19, R22 to thermistor, XS3's with respective path measurement resistance respectively
Path measurement resistance is R20, R21, R24) partial pressure, thermistor varies with temperature and change in resistance, therefore AD0, the AD2 exported
The analog voltage of respectively two thermistors, AD1 and AD3 are respectively as AD0, AD2 reference voltage, this two voltage AD1
The reference quantity for being converted to temperature value used as finally is needed with AD3, to reduce the error of temperature survey.In figure, through undue
4 road magnitude of voltage AD0, AD1, AD2, AD3 of pressure, after rear class differential operational amplifier, as circuit can use below.
It should be noted that in other embodiments, voltage source AVCC can also be done by using a voltage stabilizing IC, by heat
With measuring resistant series, now real-time change occurs quick resistance for thermistor resistance value during thermometric, you can passes through temperature-sensitive
The voltage swing at resistance both ends is distinguished.
It should be noted that above-mentioned voltage source can also be replaced with into current source, foregoing circuit component is accordingly adjusted
Annexation, so as to form the signal processing unit of other forms.
It should be noted that the path number of series resistance can also be changed, to realize partial pressure calculus of differences.In order to count
The temperature value of calculation is accurate, and the series resistance in the signal processing unit will select precision resister.
Furthermore, it is contemplated that the resistance value size of thermistor is more sensitive to temperature, therefore, signal transacting is stated in design
During unit, preferably ensure that the electric current for flowing through thermistor is smaller, prevent from causing temperature-sensitive because the electric current for flowing through thermistor is excessive
The resistance value of resistance is difficult to the size of accurately reflection measured temperature.
Fig. 4 is the structural representation of the wave filter of the embodiment of the present application four；As shown in figure 4, in the present embodiment, the knot of wave filter
Structure includes：Resistance R1, R2, R3, C1 and operational amplifier, the annexation of all parts refers to Fig. 4 in the filter construction
It is shown.
Its detailed filtering operation process is as follows：This wave filter is active filter, by resistance, electric capacity and active device group
Into.Wherein, resistance R3, C1 forms RC low pass filters, and resistance R1 and R2 are used to form negative-feedback circuit while play signal to put
Big effect, the function of an amplification more than passive filter, voltage gain and input impedance are very high, and output resistance is small, and band is negative
Loading capability is strong.
The course of work of filter circuit is as follows, and transmission function is as follows：
The transmission function A of --- --- circuitv(S)
The frequency characteristic A of --- --- circuitv(jω)
In order to which the target signal filter for accessing circuit to be fallen to the interference noise of high frequency, signal to noise ratio is improved, has selected low pass filtered herein
Ripple device.By the frequency selective device of wave filter, can make in signal specific frequency composition by, and greatly decay other frequencies into
Point.
It should be noted that above-mentioned wave filter can also be realized by filter module or digital filter, Fig. 5 is number
The theory diagram of word wave filter by pending analog voltage signal, it is necessary to be converted into data signal, by Digital Signal Processing list
Member carries out the filtering algorithms such as FIR, IIR to it, and for reconvert into the mode of analog voltage signal, it includes analog-digital converter, numeral
Signal processor, digital analog converter, Digital Signal Processing are used to perform the filtering algorithms such as FIR, IIR.
Fig. 6 is the structural representation of the A/D convertor circuit of the embodiment of the present application seven；As shown in fig. 6, A/D convertor circuit includes：Four
Road input (or two Differential Inputs) by inputoutput multiplexer (MUX), low-noise programmable gain amplifier (PGA), two
Programmable excitation current source (ACDD, AVss), a voltage reference (REFP0, REFN0), an oscillator, a low side switch
(connection AVSS and MUX switch) and a precision temperature sensor (precision temp sensor).Describe in detail such as
Under：
AIN0-AIN3：Analog input channel.Four road single inputs can be carried out, two-pass DINSAR analog quantity can also be carried out
Input；In the present embodiment, if analog voltage has AD0-AD3, it is used to input per analog input channel all the way and simulates all the way
Voltage.
PGA：Low-noise programmable gain amplifier, for carrying out the adjustment of gain.
16bitADC：The ADC of 16, for realizing the main unit of analog-to-digital conversion, for being AD converted.
Digital Filter and SPI Interface：Digital filtering and SPI interface.For realizing digital filtering
And the digital output that will be converted.Digital filtering can realize that 50Hz, 60Hz synchronously suppress, and PGA can be provided up to
128V/V gain.
LowDrift Oscillator：Internal oscillator, for producing real-time clock.
Precision Temp Sensor：Precision temperature sensor.Temperature available for measurement chip.
Reference Mux：Voltage-reference, connection voltage reference (REFP0, REFN0), can use internal voltage reference
(Internal Reference), can also use external voltage reference.
Fig. 7 is the AD conversion waveform diagram of the embodiment of the present application seven；As shown in fig. 7, corresponding above-mentioned Fig. 7 AD conversion electricity
Road, its course of work are as follows：
IN0-IN3 is upper to connect the 4 road analog signalses for wanting measures conversion, in the present embodiment, by what is measured
AD0-AD3 is connected to four road analog voltage signals of corresponding voltage signal, specifically, when chip selection signal CS is low, Ke Yijin
The corresponding conversion of row and transmission work.When new data is ready to, change data is written to inner buffer, output pin
DOUT/DRDY is dragged down, and data are sent straight to DOUT/DRDY pins, and effective data are sent in SCLK each rising edge
Position, until 16 digits changed are sent completely.
It should be noted that the form of data conversion is not limited to above-mentioned pattern, there can be other variations, such as can
To have DIN in the case where there is initiation command, then go change data, transmit the form of data.
Fig. 8 is that the structure of radio-frequency modulations demodulator circuit and low noise wave filter, power amplifier in the embodiment of the present application eight is shown
It is intended to；As shown in figure 8, the data signal of above-mentioned A/D convertor circuit output forms high-frequency carrier signal, the high frequency by frequency mixer
Carrier signal is formed and can passed through in the form of an electromagnetic wave after low noise wave filter (LPF), the processing of its power amplifier (PA) again
Antenna is transmitted.Specifically, can be sent by bluetooth module or WIFI module, for example the frequency of Bluetooth signal can be with
It is that 2.4GHz, the frequency of zigbee signal are 2.4GHz, Lora is 433MHz wireless signal.OSC is local oscillations in Fig. 8
Device, for providing clock signal to frequency mixer.
Finally it should be noted that：Above example is only to illustrate the technical scheme of the embodiment of the present application, rather than it is limited
System；Although the application is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：Its
The technical scheme described in foregoing embodiments can still be modified, or which part technical characteristic is equal
Replace；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technical scheme of the application
Spirit and scope.
Claims (14)
- A kind of 1. body temperature measuring instrument, it is characterised in that including：Earplug is popped one's head in and radio transmitter, and the earplug probe enters Ear end is provided with temperature sensor, and the temperature sensor is connected with the radio transmitter, and the earplug probe can be inserted into So that the temperature sensor in earplug probe is isolated with external environment in the external auditory meatus of measured human body, the earplug The temperature of external auditory meatus described in probe measurement carries out mould by the radio transmitter with electric signal output to the electric signal Number is changed to launch.
- 2. body temperature measuring instrument according to claim 1, it is characterised in that the earplug probe includes body, supporting construction And the temperature sensor on body end face is arranged on, the body is arranged on the nearly ear end in the supporting construction.
- 3. body temperature measuring instrument according to claim 2, it is characterised in that the body is the heat-insulated body of elasticity, is used for Block because type of thermal communication caused by ear external environment temperature and Er Nei temperature-differences, the temperature sensor are embedded in described heat-insulated It is in body and exposed at one end on face so that the temperature sensor can be inserted into the external auditory meatus of measured human body.
- 4. body temperature measuring instrument according to claim 3, it is characterised in that the elastic heat-insulated body is measured in insertion Volume is changed from small to big until be fully bonded the external auditory meatus inwall is thermally isolated effect to reach during the external auditory meatus of human body.
- 5. body temperature measuring instrument according to claim 1, it is characterised in that the radio transmitter is encapsulated in a circular arc In shell, the earplug probe insertion is located in auricle after being measured in the external auditory meatus of human body.
- 6. body temperature measuring instrument according to claim 1, it is characterised in that the output line of the temperature sensor is set In the supporting construction of earplug probe, and it is connected with radio transmitter.
- 7. body temperature measuring instrument according to claim 6, it is characterised in that the radio transmitter include bluetooth module, Zigbee, LoRa or WIFI module, to launch the electric signal after analog-to-digital conversion process.
- 8. according to the body temperature measuring instrument described in claim any one of 1-7, it is characterised in that the temperature sensor is temperature-sensitive electricity Resistance；Accordingly, the radio transmitter includes signal processing circuit, for by the thermistor during thermometric it is real When the resistance value that has be converted into analog voltage signal.
- 9. body temperature measuring instrument according to claim 8, it is characterised in that the radio transmitter also includes wave filter, The wave filter electrically connects with the signal processing circuit, for the analog voltage for handling to obtain to the signal processing circuit Signal is filtered processing and therefrom filters out interference signal.
- 10. body temperature measuring instrument according to claim 9, it is characterised in that the radio transmitter also includes：AD conversion Circuit, the A/D convertor circuit are connected with the wave filter, for the analog voltage signal to filtering out the interference signal Carry out analog-to-digital conversion and obtain the data signal of corresponding measured temperature.
- 11. body temperature measuring instrument according to claim 10, it is characterised in that the radio transmitter also includes microprocessor Unit, it is connected with the A/D convertor circuit, for calculating the reality of measured temperature according to the data signal of corresponding measured temperature Numerical value.
- 12. body temperature measuring instrument according to claim 11, it is characterised in that the microprocessing unit is further used for counting When calculating the actual numerical value of measured temperature, the data signal of measured temperature is compensated according to predetermined temperature compensation model To calculate the actual numerical value of measured temperature.
- 13. body temperature measuring instrument according to claim 12, it is characterised in that the radio transmitter also includes：Radio frequency Modulation-demodulation circuit, it is connected with the microprocessing unit, for being modulated into the actual numerical value digital electric signal of measured temperature High-frequency carrier signal.
- 14. body temperature measuring instrument according to claim 13, it is characterised in that the radio transmitter also includes：Low noise Acoustic amplifier and power amplifier, the low-noise amplifier are connected with the microprocessing unit, for from the high frequency The actual numerical value digital electric signal of measured temperature is obtained in carrier signal；The power amplifier connects with the low-noise amplifier Connect, for carrying out power amplification to the actual numerical value digital electric signal of measured temperature to launch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720011164.3U CN206792392U (en) | 2017-01-05 | 2017-01-05 | Body temperature measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720011164.3U CN206792392U (en) | 2017-01-05 | 2017-01-05 | Body temperature measuring instrument |
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| Publication Number | Publication Date |
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| CN206792392U true CN206792392U (en) | 2017-12-26 |
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| CN201720011164.3U Active CN206792392U (en) | 2017-01-05 | 2017-01-05 | Body temperature measuring instrument |
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| Country | Link |
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| CN (1) | CN206792392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125018A (en) * | 2021-05-17 | 2021-07-16 | 复旦大学 | Intelligent infrared ear thermometer with long-time monitoring function |
-
2017
- 2017-01-05 CN CN201720011164.3U patent/CN206792392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125018A (en) * | 2021-05-17 | 2021-07-16 | 复旦大学 | Intelligent infrared ear thermometer with long-time monitoring function |
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