CN205019031U - Body temperature detecting system - Google Patents
Body temperature detecting system Download PDFInfo
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- CN205019031U CN205019031U CN201520614469.4U CN201520614469U CN205019031U CN 205019031 U CN205019031 U CN 205019031U CN 201520614469 U CN201520614469 U CN 201520614469U CN 205019031 U CN205019031 U CN 205019031U
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- temperature
- resistance
- operational amplifier
- outfan
- circuit
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Abstract
The utility model discloses a body temperature detecting system, including simulation temperature measuring device, digital temperature measuring device, treater, liquid crystal disply device and the wireless conveyer of WSN, the simulation temperature measuring device with the digit temperature measuring device be connected to on the treater, the treater still with liquid crystal disply device with the wireless conveyer of WSN connects, simulation temperature measuring device includes temperature measurement bridge circuit, signal amplification circuit and AD converting circuit, digit temperature measuring device includes digital temperature sensor. It is showing the effect: body temperature detects simple and conveniently, and can realize remote control with temperature measurement wireless conveying as a result, and the equipment investment is little, and work load is little, and the reliability is high.
Description
Technical field
This utility model relates to temperature detection technology, specifically, is a kind of temperature check system.
Background technology
Temperature, ordinary meaning is the cold and hot degree of object.But in fact refer to the severe degree of molecular motion.Move slower, temperature is lower; Hurry up, temperature is higher.Exactly because this feature, our usual so-called temperature survey is not the temperature directly measured, but is the change in physical properties of certain object by temperature inversion, is completed by indirect method.
Temperature detection is very common, example is detected as with human body temperature, the larger infectious disease of the coverage such as severe acute respiratory syndrome (SevereAcuteRespiratorySyndromes, SARS) and Acute respiratory infectious disease (A type H1Nl influenza) had once been broken out respectively in China 2003 and 2009.The crowds such as school, station, market than the environment of comparatively dense, than being easier to the high-risk district becoming these infectious diseases.Therefore, comparatively necessity is detected to crowd's temperature of key area.
Traditional human body temperature detection method comprises noncontact and surveys body temperature and contact survey body temperature, what so-called noncontact surveyed that body temperature utilizes is object all can outside this principle of radiations heat energy, temperature is different, the change of wavelength and energy can be there is in object to extraradial ray, although body temperature is surveyed in noncontact have thermometric speed soon, the feature of limit for height on thermometric, this equipment price is expensive, and need manually to carry out thermometric to everyone, workload is large; It is make use of heat balance principle that traditional contact surveys body temperature, employing mercurial thermometer is mainly contained in prior art, namely in glass tubing, hydrargyrum is loaded, by mercurial thermometer, long-time and human contact makes mercury temperature raise, and make hydrargyrum volumetric expansion, but this mode thermometric time is generally at 5-10 minute, the thermometric time is long, and this thermometer easily breaks down, reliability is low, and uses inconvenient.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of temperature check system, simulation temperature measurement device and Digital Measurement of Temperature device is adopted to combine, add WSN radio transmission device, achieve and thermometric is carried out to the different parts of human body, make thermometric simple and convenient, and can by temperature-measuring results Wireless transceiver, realize controlling at a distance, solve the problems such as thermometric in dense population is difficult, expensive, the thermometric time is long, workload is large.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of temperature check system, comprise simulation temperature measurement device, Digital Measurement of Temperature device, processor, liquid crystal indicator and WSN radio transmission device, described simulation temperature measurement device and described Digital Measurement of Temperature device are connected on described processor, and described processor is also connected with described liquid crystal indicator and described WSN radio transmission device;
Described simulation temperature measurement device comprises bridge for measuring temperature circuit, signal amplification circuit and A/D convertor circuit, and described Digital Measurement of Temperature device comprises digital temperature sensor;
First diagonal two ends of described bridge for measuring temperature circuit are respectively the first outfan and the second outfan, second diagonal two ends of described bridge for measuring temperature circuit are respectively power end and earth terminal, first brachium pontis of described bridge for measuring temperature circuit is composed in parallel by resistance R1 and resistance R2, second brachium pontis is composed in parallel by resistance R3 and resistance R4, 3rd brachium pontis by after resistance R9 and resistance R10 parallel connection again series resistance R102 and resistance R103 form, four bridge legs is made up of thermal resistance, the common port of described first brachium pontis and the second brachium pontis is power end, the common port of described second brachium pontis and the 3rd brachium pontis is first input end, the common port of described 3rd brachium pontis and four bridge legs is earth terminal, the common port of described four bridge legs and the first brachium pontis is the second outfan,
Described first outfan is connected with the in-phase input end of the operational amplifier U1 in described signal amplification circuit, the inverting input of described operational amplifier U1 is connected with the outfan of operational amplifier U1, the outfan of operational amplifier U1 is connected with the inverting input of operational amplifier U3 through resistance R6, described second input is connected with the in-phase input end of the operational amplifier U2 in described signal amplification circuit, the inverting input of described operational amplifier U2 is connected with the outfan of operational amplifier U2, the outfan of operational amplifier U2 is connected with the in-phase input end of described operational amplifier U3 through resistance R8, the in-phase input end of described operational amplifier U3 is through resistance R10 ground connection, the outfan of described operational amplifier U3 is connected with the inverting input of described operational amplifier U3 through resistance R5, the outfan of described operational amplifier U3 is connected to A/D convertor circuit through resistance R7.
By above-mentioned design, respectively the temperature measuring equipment of simulation temperature measurement device and Digital Measurement of Temperature device composition can be arranged to different shapes, facilitate user to measure the temperature of human body different parts, improve the accuracy and reliability of thermometric.
Further describe, in order to make measurement accurate, described thermal resistance is PT100 thermal resistance.
Further describe, in order to make the easy-to-connect of digital temperature device, the chip model of described digital temperature sensor is DS18B20 again.
Further describe, in order to save processor I/O resource, and precision is high again, and described A/D convertor circuit adopts model to be the AD conversion chip of TLC2543.
As preferably, described processor adopts STC12C52 series monolithic.
Further describe, in order to reduce costs and shorten the construction cycle, described WSN radio transmission device adopts CC2530 chip again.
As different embodiments, described liquid crystal indicator adopts 1602 LCDs.
Remarkable result of the present utility model is: the temperature measuring equipment with simulation temperature measurement device and Digital Measurement of Temperature device, two kinds of temperature measuring equipments can be arranged to different shapes, facilitate the temperature that user measures different parts, and added WSN radio transmission device, can by temperature-measuring results Wireless transceiver, realize controlling at a distance, and solve the problems such as thermometric is difficult, equipment price is expensive, the thermometric time is long, workload is large in dense population.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is bridge for measuring temperature circuit theory diagrams;
Fig. 3 is signal amplification circuit schematic diagram;
Fig. 4 is that AD dress changes circuit theory diagrams;
Fig. 5 is processor circuit schematic diagram;
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model and operation principle are described in further detail.
As can be seen from Figure 1, a kind of temperature check system, comprise simulation temperature measurement device, Digital Measurement of Temperature device, processor, liquid crystal indicator and WSN radio transmission device, simulation temperature measurement device and Digital Measurement of Temperature device are connected on processor, and processor is also connected with liquid crystal indicator and WSN radio transmission device;
Simulation temperature measurement device comprises bridge for measuring temperature circuit, signal amplification circuit and A/D convertor circuit, and Digital Measurement of Temperature device comprises digital temperature sensor;
As can be seen from Figure 2, first diagonal two ends of bridge for measuring temperature circuit are respectively the first outfan and the second outfan, second diagonal two ends of bridge for measuring temperature circuit are respectively power end and earth terminal, first brachium pontis of bridge for measuring temperature circuit is composed in parallel by resistance R1 and resistance R2, second brachium pontis is composed in parallel by resistance R3 and resistance R4, 3rd brachium pontis by after resistance R9 and resistance R10 parallel connection again series resistance R102 and resistance R103 form, four bridge legs is made up of thermal resistance, the common port of the first brachium pontis and the second brachium pontis is power end, the common port of the second brachium pontis and the 3rd brachium pontis is first input end, the common port of the 3rd brachium pontis and four bridge legs is earth terminal, the common port of four bridge legs and the first brachium pontis is the second outfan,
As can be seen from Figure 3, first outfan is connected with the in-phase input end of the operational amplifier U1 in signal amplification circuit, the inverting input of operational amplifier U1 is connected with the outfan of operational amplifier U1, the outfan of operational amplifier U1 is connected with the inverting input of operational amplifier U3 through resistance R6, second input is connected with the in-phase input end of the operational amplifier U2 in signal amplification circuit, the inverting input of operational amplifier U2 is connected with the outfan of operational amplifier U2, the outfan of operational amplifier U2 is connected with the in-phase input end of operational amplifier U3 through resistance R8, the in-phase input end of operational amplifier U3 is through resistance R10 ground connection, the outfan of operational amplifier U3 is connected with the inverting input of operational amplifier U3 through resistance R5, the outfan of operational amplifier U3 is connected to A/D convertor circuit through resistance R7.Wherein the output of signal amplifier is
v
in+for the homophase input voltage of operational amplifier U3, V
in-for the reverse inter-input-ing voltage of operational amplifier U3, V
outfor the output voltage of operational amplifier U3.
As can be seen from Figure 4, the AD conversion chip model of A/D convertor circuit is TLC2543.
As can be seen from Figure 5, processor adopts STC12C52 series monolithic.
Further describe, thermal resistance is PT100 thermal resistance.
Preferably, the chip model of digital temperature sensor is DS18B20.
In the present embodiment, in order to reduce costs and shorten the construction cycle, WSN radio transmission device adopts CC2530 chip.
In the present embodiment, liquid crystal indicator adopts 1602 LCDs.
Operation principle of the present utility model is as follows:
By bridge for measuring temperature circuit, the changing value of thermal resistance Pt100 is transformed into magnitude of voltage, connected by the operational amplifier U1 in-phase input end of the first output end signal amplifying circuit, second outfan is connected with operational amplifier U2 in-phase input end, send signal amplification circuit to, carry out analog quantity amplification, signal after signal amplifies is connected with A/D convertor circuit through the outfan of operational amplifier U3, AD conversion chip TLC2543 converts analog voltage signal to digital signal, and sending processor process, processor is through process, first by serial ports, temperature data is transferred to WSN radio transmission device, be sent at a distance, monitor, , corresponding temperature value is sent to liquid crystal indicator by simultaneous processor, and shows in LCDs, simultaneously, Digital Measurement of Temperature chip in Digital Measurement of Temperature device is connected with processor, carry out temperature detection, Digital Measurement of Temperature device and simulation temperature measurement device can be arranged to different shapes in actual applications, realize different parts and adopt different temperature measuring equipments, thermometric in intensive crowd is made to become simple and convenient, cost of equipment is low, and workload is little, and reliability is high, and can remote monitoring be realized, Real-Time Monitoring body temperature.
Claims (7)
1. a temperature check system, it is characterized in that: comprise simulation temperature measurement device, Digital Measurement of Temperature device, processor, liquid crystal indicator and WSN radio transmission device, described simulation temperature measurement device and described Digital Measurement of Temperature device are connected on described processor, and described processor is also connected with described liquid crystal indicator and described WSN radio transmission device;
Described simulation temperature measurement device comprises bridge for measuring temperature circuit, signal amplification circuit and A/D convertor circuit, and described Digital Measurement of Temperature device comprises digital temperature sensor;
First diagonal two ends of described bridge for measuring temperature circuit are respectively the first outfan and the second outfan, second diagonal two ends of described bridge for measuring temperature circuit are respectively power end and earth terminal, first brachium pontis of described bridge for measuring temperature circuit is composed in parallel by resistance R1 and resistance R2, second brachium pontis is composed in parallel by resistance R3 and resistance R4, 3rd brachium pontis by after resistance R9 and resistance R10 parallel connection again series resistance R102 and resistance R103 form, four bridge legs is made up of thermal resistance, the common port of described first brachium pontis and the second brachium pontis is power end, the common port of described second brachium pontis and the 3rd brachium pontis is first input end, the common port of described 3rd brachium pontis and four bridge legs is earth terminal, the common port of described four bridge legs and the first brachium pontis is the second outfan,
Described first outfan is connected with the in-phase input end of the operational amplifier U1 in described signal amplification circuit, the inverting input of described operational amplifier U1 is connected with the outfan of operational amplifier U1, the outfan of operational amplifier U1 is connected with the inverting input of operational amplifier U3 through resistance R6, described second input is connected with the in-phase input end of the operational amplifier U2 in described signal amplification circuit, the inverting input of described operational amplifier U2 is connected with the outfan of operational amplifier U2, the outfan of operational amplifier U2 is connected with the in-phase input end of described operational amplifier U3 through resistance R8, the in-phase input end of described operational amplifier U3 is through resistance R10 ground connection, the outfan of described operational amplifier U3 is connected with the inverting input of described operational amplifier U3 through resistance R5, the outfan of described operational amplifier U3 is connected to A/D convertor circuit through resistance R7.
2. temperature check system according to claim 1, is characterized in that, described thermal resistance is PT100 thermal resistance.
3. temperature check system according to claim 1, is characterized in that, the chip model of described digital temperature sensor is DS18B20.
4. temperature check system according to claim 1, is characterized in that, the AD conversion chip model of described A/D convertor circuit is TLC2543.
5. temperature check system according to claim 1, is characterized in that, described processor adopts STC12C52 series monolithic.
6. temperature check system according to claim 1, is characterized in that, described WSN radio transmission device adopts CC2530 chip.
7. temperature check system according to claim 1, is characterized in that, described liquid crystal display circuit adopts 1602 LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614469.4U CN205019031U (en) | 2015-08-14 | 2015-08-14 | Body temperature detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520614469.4U CN205019031U (en) | 2015-08-14 | 2015-08-14 | Body temperature detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205019031U true CN205019031U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520614469.4U Expired - Fee Related CN205019031U (en) | 2015-08-14 | 2015-08-14 | Body temperature detecting system |
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| Country | Link |
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| CN (1) | CN205019031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931956A (en) * | 2018-09-03 | 2018-12-04 | 康泰医学系统（秦皇岛）股份有限公司 | Temperature signals simulation output device and method |
-
2015
- 2015-08-14 CN CN201520614469.4U patent/CN205019031U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931956A (en) * | 2018-09-03 | 2018-12-04 | 康泰医学系统（秦皇岛）股份有限公司 | Temperature signals simulation output device and method |
| CN108931956B (en) * | 2018-09-03 | 2024-03-26 | 康泰医学系统（秦皇岛）股份有限公司 | Body temperature signal analog output device and method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20160814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |