CN109798996A - A kind of system for detecting temperature - Google Patents
A kind of system for detecting temperature Download PDFInfo
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- CN109798996A CN109798996A CN201910051970.7A CN201910051970A CN109798996A CN 109798996 A CN109798996 A CN 109798996A CN 201910051970 A CN201910051970 A CN 201910051970A CN 109798996 A CN109798996 A CN 109798996A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 239000013078 crystal Substances 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 14
- 230000008901 benefit Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 3
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- 238000004146 energy storage Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 229960005486 vaccine Drugs 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000003760 hair shine Effects 0.000 description 1
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- 238000013021 overheating Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
The present invention provides a kind of system for detecting temperature, including single-chip microcontroller, the single-chip microcontroller is connected separately with signal conversion circuit, control circuit, power circuit, LED display circuit, sound light alarming circuit and signal output apparatus, the signal conversion circuit is connected with a thermocouple, the temperature value measured is input in single-chip microcontroller by the medical temperature sensor by thermocouple by signal conversion circuit, control circuit handles collected temperature value, the measurement result of acquisition, LED display circuit is sent to be shown, corresponding frequency signal is calculated simultaneously, it exports to sound light alarming circuit, and monitoring host computer is uploaded to by signal output apparatus, the present invention passes through prior art condition, using microcomputer processing technique, improve sensor accuracy grade and job stability, expand its function, and assign its intelligent feature, Make sensor that can not only real-time and accurately measure Minepit environment temperature, while reducing unnecessary manual operation as far as possible, improves working efficiency.
Description
Technical field
The present invention relates to temperature detection fields, and in particular to arrives a kind of system for detecting temperature.
Background technique
In the modern life, temperature is an amount for usually needing to measure and control in people's routine work and life.It is special
It is not that requirement in high-end scientific research, medical field, to measurement and the control of temperature is very stringent.Traditional temperature is in respect of reflection
Slowly, the disadvantages of reading is troublesome, measurement accuracy is not high, error is big, volume is big, can no longer meet the requirement of modern production.With
The continuous development of electronic technology, single-chip microcontroller in electronic product application it is more and more extensive.It is designed to using single-chip microcontroller
The enough system for detecting temperature of medical temperature sensor have big advantage compared with traditional thermometer.
Temperature measurement occupies an important position in the fields such as industrial, civilian, military.For testing and determining electrician, electronics
And other products and material carry out the variation of the temperature environment of high temperature, low temperature, alternating temperature-changing or constant test, judgement is when detection mesh
Target temperature value sends warning signal when reaching warning conditions.
With the development of health care industry, safety problem has become matter of utmost importance in the urgent need to address.Due to medical ring
Border complicated condition, so often there are safety hazards.In safety accident, caused by the temperature controls such as vaccine, drug
Malpractice is especially prominent, analyzes according to medical industry relevant expert, and environment temperature also has the validity of drug, reagent and vaccine
It directly affects, is of great significance in terms of accident forecast so being monitored to the temperature of important place.
Temperature is to characterize the physical quantity of the cold and hot degree of object.Measurement in industrial and agricultural production and daily life, to temperature
And control is always in occupation of critical positions.Temperature sensor application range is wide, and usage quantity is big, is also in various kinds of sensors
First of.Currently, temperature sensor just develops towards the direction of single-chip integrated, intelligence, networking and monolithic system.
Summary of the invention
In order to solve above-mentioned insufficient defect, the present invention provides a kind of system for detecting temperature, the present invention passes through existing work
Skill condition is improved sensor accuracy grade and job stability, is expanded its function, and assign using microcomputer processing technique
Its intelligent feature is given, makes sensor that can not only real-time and accurately measure Minepit environment temperature, while reducing as far as possible need not
The manual operation wanted improves working efficiency.
The present invention provides a kind of system for detecting temperature, including single-chip microcontroller, the single-chip microcontroller is connected separately with signal conversion
Circuit, control circuit, power circuit, LED display circuit, sound light alarming circuit and signal output apparatus, the signal conversion electricity
Road is connected with a thermocouple, and the medical temperature sensor is defeated by signal conversion circuit by the temperature value measured by thermocouple
Enter into single-chip microcontroller, control circuit handles collected temperature value, and the measurement result of acquisition send LED display circuit to be shown
Show, while calculating corresponding frequency signal, output is uploaded to monitoring to sound light alarming circuit, and by signal output apparatus
Host.
Above-mentioned system, wherein the single-chip microcontroller is AT89C51 single-chip microcontroller.
Above-mentioned system, wherein the signal conversion circuit is A/D conversion circuit, for being converted into digital signal.
Above-mentioned system, wherein the LED display circuit is shown by LED charactrons.
Above-mentioned system, wherein the power circuit is realized by buck DC/DC converter.
Above-mentioned system, wherein the external crystal oscillating circuit of the single-chip microcontroller is by a 11.0596MHz crystal oscillator, in single-chip microcontroller
Outside across crystal oscillator and trimmer, forms feed circuit by two pins of XTAL1, XTAL2, constitute one it is stable
Self-excited oscillator.
Above-mentioned system, wherein the light alarm of the sound light alarming circuit realizes that lamp is used by changing display color
Bi-colour light；Acoustic alarm is realized by buzzer, is arranged so that monitoring personnel is taken in time.
The present invention provides a kind of system for detecting temperature to have the advantages that the present invention passes through prior art condition,
Using microcomputer processing technique, sensor accuracy grade and job stability are improved, expands its function, and assign its intelligence
Change feature, make sensor that can not only real-time and accurately measure Minepit environment temperature, while reducing as far as possible unnecessary artificial
Operation improves working efficiency.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the present invention and its feature, outer
Shape and advantage will become more apparent upon.Identical label indicates identical part in all the attached drawings.Not deliberately proportionally
Draw attached drawing, it is preferred that emphasis is show the gist of the present invention.
Fig. 1 is one of temperature sensor system block diagram in the present invention.
Fig. 2 is power circuit diagram involved in the present invention.
Fig. 3 is the single chip circuit being related in the present invention.
Fig. 4-Fig. 8 is flow chart involved in the present invention.
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
In order to thoroughly understand the present invention, detailed step and detailed structure will be proposed in following description, so as to
Illustrate technical solution of the present invention.Presently preferred embodiments of the present invention is described in detail as follows, however other than these detailed descriptions, this
Invention can also have other embodiments.
Referring to Fig.1 shown in-Fig. 8, a kind of system for detecting temperature provided by the invention, including medical temperature sensor is through overheating
The temperature value measured is input in controller (single-chip microcontroller) by galvanic couple by signal conversion, and microcontroller is by collected temperature value
Processing, obtains high-precision measurement result, LED charactrons is sent to show, while calculating corresponding frequency signal, and output is to monitoring
The work station of system, is uploaded to monitoring host computer.
In the present invention, AT89C51 is a kind of band 4K byte flashing programmable and erasable read-only memory (FPEROM-
Flash Programmable and Erasable Read Only Memory) low-voltage, 8 micro- places of high-performance CMOS
Device is managed, single-chip microcontroller is commonly called as.AT89C2051 is a kind of single-chip microcontroller of band 2K byte flashing programmable and erasable read-only memory.
AT89C51 single-chip microcontroller and MCS-51 single-piece inner function, pin and instruction system aspect are completely compatible.And it introduces
Flash and 80C51 kernel combined technology.The working performance that keeps AT89C51 single-chip microcontroller excellent, the flexibility used and higher
The ratio of performance to price, be widely used in practice.AT89C51: the completely compatible microcontroller of instruction set, in addition to tool
Have except the digital peripherals component of standard C51, be also integrated in piece in data acquistion and control system common analog component and
Other digital peripherals and functional component.Internal flash storage may be implemented in System Programming, can both make program storage or make
Non-volatile data storage.Artificial circuit provides the in-circuit emulation of full speed in piece, is not take up user resources in piece.It supports disconnected
The debug commands such as point, single step, point of observation, operation and stopping, and support memory and register check and modification.
The main pin function of AT89C51 singlechip chip
1.VCC: main power source pin VCC, when normal operating, meets+5V.
2.GND: main power source pin GND, when normal work, is grounded.
The pin type of 3./TST:/RST is number I/O, monolithic processor resetting.External signal can be by setting the pin
Start primary system for low level to reset.
4.XTAL1: pin type is simulation input.Crystal oscillator input, the pin are the inside vibration of crystal oscillator or ceramic resonator
The feed back input of device is swung, to obtain accurate internal crystal oscillator or ceramic resonator, an outside can also be inputted by the pin
Cmos clock source, provides system clock.
5.XTAL2: pin type is simulation output.Crystal oscillator output, the pin are the excitation drives of crystal oscillator or ceramic resonator
Dynamic device output end.
6. input and output pin: P0 mouthfuls are the quasi- two-way I/O of an open-drain type, when accessing external memory,
It is conversion address (least-significant byte) and the data/address bus of time division multiple, while activating P1 mouthfuls of internal pull-up resistor is band pull-up resistor
8 it is I/O mouthfuls two-way, receive least-significant byte address in EPROM program and program verification.P2 mouthfuls are 8 with internal pull-up resistor
I/O mouthfuls two-way, when accessing external memory, it sends out most-significant byte address, receives most-significant byte in EPROM program and program verification
Address.P3.0-P3.4 is that 8 with internal pull-up resistor are I/O mouthfuls two-way, these pins have special function in AT89C51,
As shown in table 1.
Table 1
In the present invention, signal conversion circuit is A/D conversion circuit, for being converted into digital signal, specially through excess temperature
The amplified voltage signal of sensing element is spent, this signal is analog signal, and single-chip microcontroller machine can not receive, therefore must carry out A/D and turn
It changes, is converted into digital signal.In actual circuit, ICL7109 chip is selected.There are 14 (12-bit data inside ICL7109
With a polarity, one spilling) latch and one 14 ternary output registers, while can easily with it is various
Microprocessor is directly connected to, without external plus additional latch.There are two types of interface modes by ICL7109, and one is directly connect
Mouthful, another kind is hook interface.In direct interface mode, when ICL7109 conversion end, Change-over knot is issued by STATUS
Shu Zhiling to single-chip microcontroller, single-chip microcontroller to after conversion data point upper byte and low byte read.In hook interface side
When formula, ICL7109 provides the data exchange mode of industrial standard, is suitable for remote data collection system.
In the present invention, following advantage is shown using LED charactrons；It is cheap；Show that information is clearly eye-catching；
It is relatively fewer to instrument system resource occupation.Although higher using LED power consumption, since display information is clear, it is suitable for
The weaker environment of down-hole light.Further are as follows: constituted using universal logic circuit chip such as 74HC373, CD4051 etc., Ci Zhongfang
Cost is relatively low for method, and peripheral circuit is also fairly simple, easy to control, convenient for the detail programming of instrument.74HC373 is supervisory keyboard
Chip is controlled with the special intelligent of light-emitting diode display, and 74HC373 is a piece of can to drive 8 common cathode formulas simultaneously with serial line interface
The chip of the driving of the intelligent display of charactron (or 64 independent LED), the chip can also connect up to 64 keys simultaneously
Keyboard matrix, monolithic can complete LED show, the function of keyboard & display.The chip uses serial interface mode, has and disappears automatically
Except key jitter and the function of key range code, so as to improve the working efficiency of CPU, while its serial interface mode again may be used
The big design for simplifying cpu interface circuit, reduces the occupancy of software and hardware resources；And contain decoder inside 74HC373, Ke Yizhi
Binary-coded decimal or 16 ary codes are received, and at the same time there are two types of the modes decoded for tool, in addition, also with the instruction of various control
Such as blanking is flashed, is moved to left, moving to right, segment addressing function.74HC373 has chip selection signal, it may be convenient to realize and be more than 8
Typical or more than 64 keys keyboard interface.
In the present invention, power module is mainly converted using DC/DC, under mine, the electricity of medical temperature sensor
Source connects the+21V power supply of power supply box offer, uses voltage, supply at circuit is various by the internal electric source module converter of single-chip microcontroller
Each circuit module.The basic functional principle of buck DC/DC converter is that V2 switching tube works under the control of the control circuit
In switch state.When switching tube is connected, by N1, energy storage inductor L1 and capacitor C6, C7 constitute circuit, and charging current not only exists
C6, C7 establish at both ends DC voltage, and the electromotive force that generation is left just on energy storage inductor L2, the right side is negative；During switching tube ends,
Since the electric current in energy storage inductor L1 cannot be mutated, so, L1 right just, left negative pulse voltage by self-induction generation.Then, L1
The positive voltage of right end → filter capacitor left end C6, C7 → L2 constitutes discharge loop, and discharge current continues in C6, and the both ends C7 are established straight
Galvanic electricity pressure, it is load supplying that the both ends L2, which obtain 5V voltage,.Similarly, the voltage of 3.3V is obtained at the both ends L3.
In the present system, AT89C51 is a complete data acquistion and control system.C51 kernel is really this list
The core control portions of piece machine system, the effect of this Partial key is CPU.After single-chip microcontroller power-up, internal clock circuit is opened immediately
Beginning work after CPU starting, first from 0000 address instruction fetch of program storage, starts to execute program.The essence of single-chip microcontroller
Exactly execute the process of program, one immediate skip of every execution can be divided into 3 stages, i.e. instruction fetch, analysis instruction and execute instruction.
The task of instruction fetch is to read current ordcurrent order according to the value in program counter PC from program storage, be sent to command register.
The task of analysis instruction is to take out the instruction operation code of command register, is stored to command decoder and is analyzed, analyzes it and refer to
Enable property.If instruction requires operand, seek operand address.Executing instruction for task is to take out operand, is then operated
The property of operand operates operand.When single-chip microcontroller is just powered on, external or internal reset signal makes monolithic first
Machine resets, and it is minimum power consumption state that the initial reset state of above-mentioned each functional module, which is to shut down to wait,.If it is desired that those function
Can module work, then pass through software first to using each module to carry out with postpone could be with outside in the initialization section of program
Connection；Crystal oscillating circuit: the effect of crystal oscillating circuit is that basic clock signal is provided for system.Crystal oscillator is that frequency base is provided for circuit
Quasi- component, has generally fallen into source crystal oscillator and without two major class of source crystal oscillator, no source crystal oscillator needs chip interior to have oscillator, and
And the signal voltage of crystal oscillator allows different voltage depending on start-oscillation circuit, but without the usual signal quality of source crystal oscillator and precision
It is poor, it needs accurately to match peripheral circuit (inductance, capacitor, resistance etc.), to replace the electricity of periphery when such as needing to change crystal oscillator simultaneously
Road.There is source crystal oscillator not need the internal oscillator of chip, high-precision frequency reference can be provided, signal quality also more passive crystalline substance
Vibration will be got well.
In the present invention, referring to shown in Fig. 3, working principle: the external crystal oscillating circuit of single-chip microcontroller is by a 11.0596MHz
Crystal oscillator forms feed circuit across crystal oscillator and trimmer by two pins of XTAL1, XTAL2 outside single-chip microcontroller,
Constitute a stable self-excited oscillator.Monolithic function is set to have an accurate clock signal (necessary when using serial communication
The crystal oscillator used is 11.0596MHz).
In the present invention, LED display circuit uses static status display, 3 common anode LED charactrons.So-called static status display is exactly
Each display will occupy the individually I/O interface with latch function and be used for stroke section font code.Such single-chip microcontroller
As long as font code to be shown is sent to interface circuit, not having to pipe, it is retransmited when to show new data
New graphemic code, therefore, in this way, the expense of CPU is small in single-chip microcontroller.
In the present invention, the light-emitting diode display of actual use is usually made of multidigit, to the control packet of Multi-bit LED display
Include word row control and word bit control, under static status display mode, do not have a display word row control be it is independent, be coupled with
One 8 I | on O Interface, word bit control line connects together, ground connection or 5 volts.The connection of light emitting diode in light-emitting diode display and
Principle:
Common-anode: connecting together the anode of light emitting diode and constitute common-anode, in use, public anode connects+5
Volt, in this way, low level section of light emitting diode of anode input terminal is turned on and lighted, and input high level is not lighted then.
Working principle: when a segment electrode connects low level, when public anode connects high level, corresponding pen section can shine.LED number
Code pipe is equivalent to the more PN junctions with luminescent properties.When PN junction conducting, by the note people of minority carrier and answering then
Close and radioluminescence, C-V characteristic are similar to general-purpose diode.Before forward conduction, forward current is similar to zero, pen section
It does not shine.When voltage is more than cut-in voltage, electric current is just steeply risen, and pen section shines.It is formulated: L=KIF.Brightness with
Forward current is directly proportional.The forward voltage U of LED, then it is related with forward current and die material.When using LED charactrons, work
Make electric current and generally select 10mA or so/section, not only guaranteed that brightness is moderate, but also device will not be damaged.
Pass through the amplified voltage signal of temperature-sensing element in of the invention, this signal is analog signal, single-chip microcontroller machine
It can not receive, therefore A/D conversion must be carried out, be converted into digital signal.In actual circuit, ICL7109 chip is selected；Work is former
Reason: there are one 14 (12-bit data and a polarity, a spilling) latch and one 14 tri-states inside ICL7109
Output register, while can be easily directly connected to various microprocessors, without external plus additional latch.
There are two types of interface modes by ICL7109, and one is direct interface, another kind is hook interface.In direct interface mode, when
When ICL7109 conversion end, conversion end instruction is issued to single-chip microcontroller by STATUS, single-chip microcontroller is to the data after a conversion point high position
Byte and low byte are read.When linking up with interface mode, ICL7109 provides the data exchange mode of industrial standard, fits
For remote data collection system.
In the present invention, sound light alarming circuit；System can be realized in the case where temperature is more than predetermined temperature
Sound-light alarm.Light alarm realizes that lamp uses bi-colour light by changing display color.Acoustic alarm realized by buzzer, so that
Monitoring personnel is taken arrange in time.
In the present invention, it show workflow schematic diagram of the invention referring to Fig. 4-Fig. 8, specifically includes that main program master
Wanting function is control call subroutine, realizes real-time display, reading and the measurement temperature value handled of temperature；The sub- journey of keyboard scan
The key that ordered pair is pressed is judged, and goes to the corresponding program segment of corresponding key pressed, and executes corresponding function；Interrupt routine is
When realizing that single-chip microcontroller is when receiving the signal of substation or main website, the program currently run can be interrupted, goes to execute
The order that substation or main website are assigned.Continue to execute after order and interrupts the preceding program run；LED display module
Effect be that the data that will be handled well are shown.The part will complete the segment encode conversion of 16 systems to 7 segment numerals, and finally will
Correct segment encode output, lights corresponding charactron with this；Reading temperature subprogram major function is 9 words read in RAM
Section, CRC check need to be carried out when reading, and verification has the rewriting staggered the time without temperature data.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, devices and structures not described in detail herein should be understood as gives reality with the common mode in this field
It applies；Anyone skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and technical content many possible changes and modifications are made to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this is not affected the essence of the present invention.Therefore, anything that does not depart from the technical scheme of the invention, foundation
Technical spirit of the invention any simple modifications, equivalents, and modifications made to the above embodiment, still fall within the present invention
In the range of technical solution protection.
Claims (7)
1. a kind of system for detecting temperature, which is characterized in that including single-chip microcontroller, the single-chip microcontroller is connected separately with signal conversion electricity
Road, control circuit, power circuit, LED display circuit, sound light alarming circuit and signal output apparatus, the signal conversion circuit
It is connected with a thermocouple, the medical temperature sensor is inputted the temperature value measured by signal conversion circuit by thermocouple
Into single-chip microcontroller, control circuit handles collected temperature value, and the measurement result of acquisition send LED display circuit to be shown,
Corresponding frequency signal is calculated simultaneously, is exported to sound light alarming circuit, and monitoring master is uploaded to by signal output apparatus
Machine.
2. a kind of system for detecting temperature as described in claim 1, which is characterized in that the single-chip microcontroller is AT89C51 single-chip microcontroller.
3. a kind of system for detecting temperature as claimed in claim 2, which is characterized in that the signal conversion circuit is A/D conversion
Circuit, for being converted into digital signal.
4. a kind of system for detecting temperature as claimed in claim 3, which is characterized in that the LED display circuit passes through LED number
Pipe is shown.
5. a kind of system for detecting temperature as claimed in claim 4, which is characterized in that the power circuit passes through buck DC/
DC converter is realized.
6. a kind of system for detecting temperature as claimed in claim 5, which is characterized in that the external crystal oscillating circuit of the single-chip microcontroller by
One 11.0596MHz crystal oscillator, by two pins of XTAL1, XTAL2 across crystal oscillator and trimmer outside single-chip microcontroller,
Feed circuit is formed, a stable self-excited oscillator is constituted.
7. a kind of system for detecting temperature as claimed in claim 5, which is characterized in that the light alarm of the sound light alarming circuit is logical
Change display color is crossed to realize, lamp uses bi-colour light；Acoustic alarm is realized by buzzer, so that monitoring personnel is taken in time
It arranges.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051970.7A CN109798996A (en) | 2019-01-21 | 2019-01-21 | A kind of system for detecting temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051970.7A CN109798996A (en) | 2019-01-21 | 2019-01-21 | A kind of system for detecting temperature |
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| CN109798996A true CN109798996A (en) | 2019-05-24 |
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ID=66559780
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115327373A (en) * | 2022-04-20 | 2022-11-11 | 岱特智能科技（上海）有限公司 | Hemodialysis equipment fault diagnosis method based on BP neural network and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555662U (en) * | 2009-11-19 | 2010-08-18 | 上海第二工业大学 | Temperature detection alarm |
| CN202501926U (en) * | 2012-04-06 | 2012-10-24 | 长安大学 | One-chip microcomputer based temperature alarm display apparatus |
| CN202836806U (en) * | 2012-07-31 | 2013-03-27 | 西安科技大学 | Handheld cola body temperature detection instrument |
| CN104215344A (en) * | 2014-09-12 | 2014-12-17 | 陕西高新实业有限公司 | Temperature measuring device |
| CN106768413A (en) * | 2017-02-08 | 2017-05-31 | 广东理工学院 | Multipoint temperature detecting device |
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2019
- 2019-01-21 CN CN201910051970.7A patent/CN109798996A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555662U (en) * | 2009-11-19 | 2010-08-18 | 上海第二工业大学 | Temperature detection alarm |
| CN202501926U (en) * | 2012-04-06 | 2012-10-24 | 长安大学 | One-chip microcomputer based temperature alarm display apparatus |
| CN202836806U (en) * | 2012-07-31 | 2013-03-27 | 西安科技大学 | Handheld cola body temperature detection instrument |
| CN104215344A (en) * | 2014-09-12 | 2014-12-17 | 陕西高新实业有限公司 | Temperature measuring device |
| CN106768413A (en) * | 2017-02-08 | 2017-05-31 | 广东理工学院 | Multipoint temperature detecting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115327373A (en) * | 2022-04-20 | 2022-11-11 | 岱特智能科技（上海）有限公司 | Hemodialysis equipment fault diagnosis method based on BP neural network and storage medium |
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