CN108469314A - A kind of temperature monitoring system - Google Patents
A kind of temperature monitoring system Download PDFInfo
- Publication number
- CN108469314A CN108469314A CN201810484408.9A CN201810484408A CN108469314A CN 108469314 A CN108469314 A CN 108469314A CN 201810484408 A CN201810484408 A CN 201810484408A CN 108469314 A CN108469314 A CN 108469314A
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- China
- Prior art keywords
- circuit
- temperature
- module
- input terminal
- output end
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/022—Means for indicating or recording specially adapted for thermometers for recording
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of temperature monitoring systems, including：RFID reader, induction coil, resonance regulator rectifier circuit, digital control circuit and temperature sensor etc..The present invention can automatically record the temperature of current environment at work, if temperature anomaly can be sent out alarm signal, can be used for the storage tracking and management of frozen food.
Description
Technical field
The present invention relates to wireless telecommunications system fields, more particularly to a kind of temperature monitoring system.
Background technology
In the transport storage of frozen food and management process, usually asked because the influence of temperature causes food that quality occurs
Topic, so monitoring temperature is a crucial and important link, it is therefore desirable to which equipment can monitor the temperature of current environment, and the temperature
Degree is wanted to preserve and be checked at any time, if temperature anomaly can be sent out alarm signal.
Invention content
To meet the above-mentioned problems of the prior art, the main purpose of the present invention is to provide a kind of monitoring temperature systems
System, has the function of automatically recording current environmental temperature, if temperature anomaly can be sent out alarm signal, can be used for freezing food
The storage of product tracks and management.
In view of the above and other objects, the present invention provides a kind of temperature monitoring system comprising：RFID reader, alarm
Module, display module, transmitting coil, receiving coil, resonance circuit, rectification circuit, band-gap reference circuit, regulator circuit, modulation
Circuit, demodulator circuit, digital control circuit, temperature correction module, temperature sensor, analog-to-digital conversion module and memory module,
It includes alarm module, RFID reader, display module and transmitting coil that middle temperature, which reads system, and function is to give thermograph system
System provides power supply, and reads temperature data and show, alarms if temperature anomaly, other module composition thermographs
System, collecting temperature carry out storage and temperature are transferred to external temperature reading system.
The temperature reads system by alarm module, RFID reader, transmitting coil and display module composition；RFID Card Readers
The output end of machine is respectively connected to alarm module input terminal and display module input terminal, the antenna ends of RFID reader and transmitting
Coil both ends are connected；Display module works as temperature anomaly, alarm module is issued by alarm for showing current collected temperature
Signal, RFID reader go out sine wave signal by coil transmissions, on the one hand provide energy to thermograph system by sine wave
Amount, still further aspect transmit mutually signal by the carrier wave and thermograph system.
The thermograph system is adjusted by receiving coil, resonance circuit, rectification circuit, band-gap reference circuit, regulator circuit
Circuit processed, demodulator circuit, digital control circuit, temperature correction module, temperature sensor, analog-to-digital conversion module and memory module group
At；The antenna ends of resonance circuit are connected with the both ends of receiving coil, the input of the output end and rectification circuit of resonance circuit
End is connected, and the output end of rectification circuit is respectively connected to the input terminal reconciliation of the input terminal of band-gap reference circuit, regulator circuit
The input terminal of circuit, the output end of band-gap reference circuit is adjusted to be connected to the input terminal of regulator circuit, the output end of demodulator circuit connects
It is connected to the input terminal of digital control circuit, the output end of digital control circuit is connected to the input terminal of modulation circuit, modulation circuit
Output end connected with the input terminal of resonance circuit；The output end of digital control circuit is connected to temperature correction module, temperature school
The output end of quasi-mode block and the output end of temperature sensor are connected with the input terminal of analog-to-digital conversion module respectively, analog-to-digital conversion mould
The output end of block is connected with the input terminal of digital control circuit, digital control circuit and memory module interconnection.
The rectification circuit, band-gap reference circuit and regulator circuit, which is characterized in that the input of band-gap reference circuit is direct
By being provided in rectification circuit, the voltage of the input is a high voltage and is the voltage for stablizing output, therefore band-gap reference is electric
Road needs just have 5V devices or the design of 15V devices, first generates stable reference voltage and electric current at such high pressures, then carries again
Supply regulator circuit and generate the required supply voltage of whole system, feature be that of avoiding band-gap reference circuit and regulator circuit it
Between interfere with each other.
A kind of temperature monitoring system, advantage are can to record the temperature of current environment, and carry out real-time storage, then can be with
Temperature information is transferred to external display module, and once exception can be sent out alarm signal to temperature.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is a kind of temperature monitoring system structure chart of the present invention.
Specific implementation mode
In conjunction with shown in Fig. 1, in the following embodiments, a kind of temperature monitoring system, including：RFID reader, report
Alert module, display module, transmitting coil, receiving coil, resonance circuit, rectification circuit, band-gap reference circuit, regulator circuit are adjusted
Circuit processed, demodulator circuit, digital control circuit, temperature correction module, temperature sensor, analog-to-digital conversion module and memory module,
It includes alarm module, RFID reader, display module and transmitting coil that wherein temperature, which reads system, and RFID reader is for reading
Temperature information, while handling and judging the information, and handling result is sent to display module, then display module is just directly aobvious
Show current temperature, RFID reader can also leaf through saved each thermograph as needed.In RFID reader
In can set alarm temperature, such as preserved for food product refrigeration, once setting environment temperature is issued by alarm higher than 0 degree
Signal, then alarm module be issued by corresponding alarm signal.Transmitting coil is connected with card reader, and the effect of coil is exactly to be used for
The transmission of signal and the coupling of energy, RFID reader go out sine wave signal by coil transmissions, are on the one hand given by sine wave
Thermograph system provides energy, and still further aspect transmits mutually signal, working frequency by the carrier wave and thermograph system
For 13.56MHz.Other module composition thermograph systems, major function are exactly that collecting temperature store and transmit temperature
To external temperature reading and display system.
The thermograph system is adjusted by receiving coil, resonance circuit, rectification circuit, band-gap reference circuit, regulator circuit
Circuit processed, demodulator circuit, digital control circuit, temperature correction module, temperature sensor, analog-to-digital conversion module and memory module group
At；Resonance circuit can allow thermograph system to be coupled to more for amplifying the sine wave signal being coupled to after resonance amplification
More energy can allow system preferably to work, and signal can also be transferred to reading by Resonance Circuit by way of modulation
Card machine.It is that can be designed to the recorder compared with small area and volume in this way, therefore without battery in thermograph system
It needs in reading temperature overshot, obtain energy by carrier wave works for thermograph system.The advantages of resonance circuit is to pass through
Resonance can obtain the energy of higher efficiency, ensure the transmission of energy maximal efficiency.The sine wave signal input generated after resonance
Into rectification circuit, by rectification circuit, AC signal is just rectified into direct current signal, is that an AC signal is converted into direct current letter
Number process.The first via of rectification circuit is input in band-gap reference circuit, which is usually 3-5V, by band gap base
Standard generates stable reference voltage and reference current, and each circuit module in system is supplied to use.The second of rectification circuit
Road is input in regulator circuit, and then regulator circuit is according to the reference current and reference voltage of generation, needed for generation system work
The supply voltage wanted, for example, 1.8V supply voltage.The third road of rectification circuit is input in demodulator circuit, and being used for will be in carrier wave
Demodulated information signal come out, be then re-fed into digital control circuit and handle.
Digital control circuit can issue a command to temperature correction module at work, and then temperature correction module can be certainly
Inspection, generates corresponding calibration signal and exports to analog-to-digital conversion module.Temperature sensor meeting real-time Transmission temperature gives analog-to-digital conversion mould
Block, analog-to-digital conversion module are handled after receiving data, and the temperature transition handled well is finally sent into number control at digital signal
In circuit processed.It after digital control circuit receives temperature data, on the one hand can store in memory module, still further aspect can be by number
According to being handled, it is sent to modulation circuit, which is transferred to RFID reader by resonance circuit.When RFID reader is sent out
When the stored temperature of instructions query, the thermograph of extraction storage is passed through modulation circuit and resonance electricity by digital control circuit
Road is transferred to RFID reader.
In the framework of rectification circuit, band-gap reference circuit and regulator circuit, traditional framework is that band-gap reference circuit is hung
In regulator circuit in the following, in regulator circuit supply voltage generation depend on reference voltage, and the generation of reference voltage dependence
In supply voltage, it can cause that supply voltage can neither be generated, reference voltage can not be generated, lead to entire powers down.
And in the present invention, directly by being provided in rectification circuit, the voltage range of the input is usually 3-5V for the input of band-gap reference circuit,
And it is the voltage stablized, therefore band-gap reference circuit needs to use 5V devices or 15V devices, first generates at such high pressures
Then stable reference voltage and electric current is available to regulator circuit and generates the required supply voltage of whole system, feature is
It avoids interdepending between band-gap reference circuit and regulator circuit and interferes so that have between benchmark and supply voltage a first
Relationship afterwards.
Although the present invention is illustrated using specific embodiment, the present invention's is not intended to limit to the explanation of embodiment
Range.One skilled in the art is by reference to explanation of the invention, without departing substantially from the spirit and scope of the present invention
In the case of, it is easy to carry out various modifications or embodiment can be combined, these also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of temperature monitoring system, including：RFID reader, alarm module, display module, transmitting coil, receiving coil,
Resonance circuit, rectification circuit, band-gap reference circuit, regulator circuit, modulation circuit, demodulator circuit, digital control circuit, temperature school
It includes alarm module that quasi-mode block, temperature sensor, analog-to-digital conversion module and memory module, wherein temperature, which read system, and RFID is read
Card machine, display module and transmitting coil, function are to provide power supply to thermograph system, and read temperature data and show
Show, alarm if temperature anomaly, other module composition thermograph systems, function is that collecting temperature is stored simultaneously
Temperature is transferred to external temperature and reads system.
2. a kind of temperature monitoring system as described in claim 1, it is characterised in that：The temperature reads system by alarm module,
RFID reader, transmitting coil and display module composition；The output end of RFID reader is respectively connected to alarm module input terminal
It is connected with transmitting coil both ends with the antenna ends of display module input terminal, RFID reader；Display module is worked as showing
Preceding collected temperature works as temperature anomaly, and alarm module is issued by alarm signal, and RFID reader goes out sine by coil transmissions
On the one hand wave signal provides energy by sine wave to thermograph system, still further aspect passes through the carrier wave and thermograph
System transmits mutually signal.
3. a kind of temperature monitoring system as described in claim 1, it is characterised in that：The thermograph system by receiving coil,
Resonance circuit, rectification circuit, band-gap reference circuit, regulator circuit, modulation circuit, demodulator circuit, digital control circuit, temperature school
Quasi-mode block, temperature sensor, analog-to-digital conversion module and memory module composition；The antenna ends of resonance circuit and the two of receiving coil
End is connected, and the output end of resonance circuit is connected with the input terminal of rectification circuit, and the output end of rectification circuit is respectively connected to
The input terminal of the input terminal of band-gap reference circuit, the input terminal of regulator circuit and demodulator circuit, the output end of band-gap reference circuit
It is connected to the input terminal of regulator circuit, the output end of demodulator circuit is connected to the input terminal of digital control circuit, digital control electricity
The output end on road is connected to the input terminal of modulation circuit, and the output end of modulation circuit is connected with the input terminal of resonance circuit；Number
The output end of control circuit is connected to temperature correction module, the output end of temperature correction module and the output end of temperature sensor point
It is not connected with the input terminal of analog-to-digital conversion module, the output end of analog-to-digital conversion module is connected with the input terminal of digital control circuit
It connects, digital control circuit and memory module interconnection.
4. thermograph system as claimed in claim 3, it is characterised in that：The rectification circuit, band-gap reference circuit and steady
Volt circuit, which is characterized in that directly by being provided in rectification circuit, the voltage of the input is a high electricity for the input of band-gap reference circuit
Press and be stablize the voltage of output, therefore band-gap reference circuit can first generate at such high pressures stable reference voltage and
Then electric current is available to regulator circuit and generates the required supply voltage of whole system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484408.9A CN108469314A (en) | 2018-05-20 | 2018-05-20 | A kind of temperature monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484408.9A CN108469314A (en) | 2018-05-20 | 2018-05-20 | A kind of temperature monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108469314A true CN108469314A (en) | 2018-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810484408.9A Pending CN108469314A (en) | 2018-05-20 | 2018-05-20 | A kind of temperature monitoring system |
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| CN (1) | CN108469314A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202159352U (en) * | 2011-07-08 | 2012-03-07 | 深圳市远望谷信息技术股份有限公司 | Temperature measurement system used for train part |
| CN203854679U (en) * | 2014-04-18 | 2014-10-01 | 深圳市远望谷信息技术股份有限公司 | Passive temperature measuring device and train axle temperature detecting device |
| CN203882332U (en) * | 2013-12-13 | 2014-10-15 | 无锡成电科大科技发展有限公司 | Passive ultrahigh-frequency RFID tag device for temperature and humidity sensing type |
| CN204465114U (en) * | 2015-04-08 | 2015-07-08 | 厦门新页科技有限公司 | The receiving system of wireless charging |
-
2018
- 2018-05-20 CN CN201810484408.9A patent/CN108469314A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202159352U (en) * | 2011-07-08 | 2012-03-07 | 深圳市远望谷信息技术股份有限公司 | Temperature measurement system used for train part |
| CN203882332U (en) * | 2013-12-13 | 2014-10-15 | 无锡成电科大科技发展有限公司 | Passive ultrahigh-frequency RFID tag device for temperature and humidity sensing type |
| CN203854679U (en) * | 2014-04-18 | 2014-10-01 | 深圳市远望谷信息技术股份有限公司 | Passive temperature measuring device and train axle temperature detecting device |
| CN204465114U (en) * | 2015-04-08 | 2015-07-08 | 厦门新页科技有限公司 | The receiving system of wireless charging |
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Application publication date: 20180831 |