CN106482845A - Temp measuring system and method based on RFID - Google Patents

Temp measuring system and method based on RFID Download PDF

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Publication number
CN106482845A
CN106482845A CN201610939601.8A CN201610939601A CN106482845A CN 106482845 A CN106482845 A CN 106482845A CN 201610939601 A CN201610939601 A CN 201610939601A CN 106482845 A CN106482845 A CN 106482845A
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CN
China
Prior art keywords
passive
temperature
thermometric
rfid
antenna
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CN201610939601.8A
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Chinese (zh)
Inventor
印杰
陆建
吕峰
潘文建
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Shanghai Silicon Sensor Co Ltd
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Shanghai Silicon Sensor Co Ltd
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Application filed by Shanghai Silicon Sensor Co Ltd filed Critical Shanghai Silicon Sensor Co Ltd
Priority to CN201610939601.8A priority Critical patent/CN106482845A/en
Publication of CN106482845A publication Critical patent/CN106482845A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02Means for indicating or recording specially adapted for thermometers
    • G01K1/024Means for indicating or recording specially adapted for thermometers for remote indication
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The present invention relates to a kind of temp measuring system based on RFID and method.Wherein, the system includes passive RFID temperature sensor, rf gain antenna data acquisition terminal;Passive RFID temperature sensor is arranged at point for measuring temperature;Data collection station and rf gain antenna are arranged at the position for having setpoint distance with passive RFID temperature sensor;Data collection station sends thermometric order and radiofrequency signal to each passive RFID temperature sensor in rf gain antenna footprint, provides the energy needed for thermometric for each passive RFID temperature sensor;Each passive RFID temperature sensor carries out thermometric to the respective point for measuring temperature being located, and the temperature data that thermometric is obtained is sent to the data collection station.The temp measuring system of the embodiment of the present invention, RFID is combined with temperature measurement circuit, it is possible to achieve strong and weak detached Digital Measurement of Temperature, and temperature-measuring results are not easily susceptible to interference, can realize the passive thermometric of sensor contact.

Description

Temp measuring system and method based on RFID
Technical field
The present invention relates to sensor technical field, more particularly to a kind of temp measuring system based on RFID and method.
Background technology
In power system, cable connection copper bar and contact of breaker be aging, dust stratification, is easily caused contact resistance and becomes big, flows through Electric current cause hot-spot.If arranging problem not in time, equipment hot operation can cause the accident.Therefore, it is necessary to copper bar It is also easy to produce with contact of breaker etc. and aging enters trip temperature real-time monitoring with dust stratification position.In faulty generation, need in time Fault point.
Traditional thermometric scheme includes:Temperature indicating record label, far infrared temperature measurement, optical fiber temperature-measurement, wired thermometric, SAW Thermometric etc..The feature of traditional thermometric scheme is as follows:
1, temperature indicating records label:Temperature spot is single, cannot quantify, need hand inspection, not real-time.
2, far infrared temperature measurement:Cannot detect when being blocked using infrared temperature rifle manual inspection, light path, not real-time.
3, optical fiber temperature-measurement:Little, the easy dust stratification using fibre optic temperature sensor, frangibility, installation complexity, temperature resistant range.
4, wired thermometric:Battery is powered, battery life is limited, change difficulty;CT power taking is required to load current.
5, SAW thermometrics:Data transfer is disturbed using analog quantity, easily;During multiple sensors, ID distinguish difficult.
To sum up, traditional thermometric scheme exist easily be disturbed, need battery, data not in real time, need manual inspection etc. to lack Fall into.
Content of the invention
Technical problem
In view of this, the technical problem to be solved in the present invention be to provide a kind of passive temp measuring system based on RFID and Method.
Solution
In order to solve above-mentioned technical problem, according to one embodiment of the invention, there is provided a kind of thermometric system based on RFID System, including:Passive RFID temperature sensor, rf gain antenna data acquisition terminal;
The passive RFID temperature sensor is arranged at point for measuring temperature;
The data collection station is connected with the rf gain antenna, the data collection station and the rf gain Antenna is arranged at the position for having setpoint distance with the passive RFID temperature sensor;
Wherein, the data collection station is used for covering model by the rf gain antenna to the rf gain antenna Each passive RFID temperature sensor in enclosing sends thermometric order;Radiofrequency signal, institute are sent to each passive RFID temperature sensor Radiofrequency signal is stated for the energy needed for thermometric being provided for each passive RFID temperature sensor;
Each passive RFID temperature sensor, for carrying out thermometric to the respective point for measuring temperature being located, and thermometric is obtained Temperature data the data collection station is sent to by the rf gain antenna.
For said system, in a kind of possible implementation, the passive RFID temperature sensor includes:Thermometric with RFID integrated circuit and passive passive RF antenna;
Wherein, the thermometric is connected with the passive passive RF antenna with RFID integrated circuit,
The thermometric is used for connecing from the rf gain antenna by the passive passive RF antenna with RFID integrated circuit The thermometric order and the radiofrequency signal is received, thermometric is carried out to the point for measuring temperature and obtains the temperature data;
The thermometric is additionally operable to by the passive passive RF antenna and the rf gain antenna with RFID integrated circuit The temperature data is sent to the data collection station.
For said system, in a kind of possible implementation, the thermometric is included with RFID integrated circuit:First temperature Degree sensor, the first temperature measurement circuit and passive RFID termination power;
The data collection station is additionally operable to read the RSSI of first temperature sensor, and passes through the rf gain Antenna and the passive passive RF antenna send the radiofrequency signal being adapted with the RSSI to first temperature measurement circuit;
First temperature measurement circuit, for, controlling first temperature sensor to survey under the driving of the radiofrequency signal Measure the temperature data of corresponding point for measuring temperature;
The passive RFID termination power, for reading the temperature data from first temperature measurement circuit, and passes through institute State passive passive RF antenna and the rf gain antenna temperature data is sent to the data collection station.
For said system, in a kind of possible implementation, the passive RFID temperature sensor also includes:Motherboard And shell;
The top of the motherboard is provided with thermal insulation layer;
The top of the thermal insulation layer is provided with the passive passive RF antenna;
The top of the passive passive RF antenna is provided with the thermometric and RFID integrated circuit;
The shell is enclosed located at the thermometric and RFID integrated circuit, the outside of the passive passive RF antenna, and institute State shell and can fasten with the motherboard and be integrated.
For said system, in a kind of possible implementation, also include:
Wireless data transmission terminal, is communicated with the data collection station, from the data collection station reception processing Temperature data afterwards, and to the temperature data after external equipment transmission processe.
For said system, in a kind of possible implementation, the passive RFID temperature sensor is installed on wind-powered electricity generation The high current busbar of system and/or switch cubicle contact, the high current busbar of the wind power system and/or switch cubicle contact are thermometric Point;
The data collection station and the rf gain antenna be installed on the high current busbar with the wind power system and/ Or switch cubicle contact has the position of setpoint distance.
The embodiment of the present invention also provides a kind of temp measuring method based on radio frequency discrimination RFID, including:
Data collection station is by rf gain antenna to each passive RFID in the rf gain antenna footprint Temperature sensor sends thermometric order;
The data collection station sends radiofrequency signal to each passive RFID temperature sensor, and the radiofrequency signal is for being Each passive RFID temperature sensor provides the energy needed for thermometric;
Each passive RFID temperature sensor of the thermometric order and the radiofrequency signal is received to the respective survey being located Warm spot carries out thermometric, and the temperature data that thermometric is obtained is sent to the data acquisition end by the rf gain antenna End.
For said method, in a kind of possible implementation, the passive RFID temperature sensor includes:Thermometric with RFID integrated circuit and passive passive RF antenna;
Each passive RFID temperature sensor of the thermometric order and the radiofrequency signal is received to the respective survey being located Warm spot carries out thermometric, including:
The thermometric and RFID integrated circuit are by the passive passive RF antenna and the rf gain antenna from described Data collection station receives the thermometric order and the radiofrequency signal;
The thermometric measures the temperature for obtaining corresponding point for measuring temperature under the driving of the radiofrequency signal with RFID integrated circuit Degrees of data;
The thermometric and RFID integrated circuit are by the passive passive RF antenna and the rf gain antenna to described Data collection station sends the temperature data.
For said method, in a kind of possible implementation, the thermometric is included with RFID integrated circuit:First temperature Degree sensor, the first temperature measurement circuit and passive RFID termination power;
The thermometric and RFID integrated circuit are by the passive passive RF antenna and the rf gain antenna from described Data collection station receives the thermometric order and the radiofrequency signal, including:First temperature sensor is by the nothing The passive RF antenna in source and the rf gain antenna, receive after the thermometric order, to the number from the data collection station RSSI is sent according to acquisition terminal, and the radiofrequency signal being adapted with the RSSI is received from the data collection station;
The thermometric measures the temperature for obtaining corresponding point for measuring temperature under the driving of the radiofrequency signal with RFID integrated circuit Degrees of data, including:First temperature measurement circuit controls first temperature sensor measurement under the triggering of the radiofrequency signal Obtain the temperature data of corresponding point for measuring temperature;
The thermometric and RFID integrated circuit are by the passive passive RF antenna and the rf gain antenna to described Data collection station sends the temperature data, including:The passive RFID termination power is read from first temperature measurement circuit The temperature data, and sent to the data collection station by the passive passive RF antenna and the rf gain antenna The temperature data.
For said method, in a kind of possible implementation, also include:
Temperature data of the wireless data transmission terminal from after the data collection station reception processing, and send out to external equipment Send the temperature data after processing.
Beneficial effect
The temp measuring system of the embodiment of the present invention, RFID is combined with temperature measurement circuit, it is possible to achieve strong and weak detached numeral is surveyed Temperature, temperature-measuring results are not easily susceptible to interference.Data collection station provides survey by radiofrequency signal for each passive RFID temperature sensor Energy needed for temperature, can realize the passive thermometric of sensor contact.
Further, data collection station can read the temperature of each point for measuring temperature in real time from each passive RFID temperature sensor Data, are uploaded to monitoring system by data/address bus and wireless data transmission terminal, in time without the need for manual inspection.Also, adopt Wireless data transmission terminal, it is possible to reduce wiring and installation.
Further, the temp measuring system of the embodiment of the present invention, install from temperature measuring equipment safeguard, temperature measurement accuracy with real-time Property, the aspect such as human resources utilization cost-effective, can pre- high temperature-proof abnormal and cause second accident, be that safe power supply is provided with Try hard to keep barrier.
Further, the temp measuring system of the embodiment of the present invention is applied in wind power system, is conducive in wind power system It was found that during temperature anomaly, control wind power generation unit blade feathering and braking in time, it is not necessary to which artificial climbing is overhauled up, can be prevented Generation accident.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the further feature of the present invention and aspect will become Clear.
Description of the drawings
Comprising in the description and accompanying drawing and the specification of the part that constitutes specification together illustrates the present invention's Exemplary embodiment, feature and aspect, and for explaining the principle of the present invention.
Fig. 1 illustrates the structured flowchart of the temp measuring system based on RFID according to an embodiment of the invention.
Fig. 2 and Fig. 3 illustrate passive RFID TEMP in the temp measuring system based on RFID according to an embodiment of the invention The structural representation of device.
Fig. 4 illustrates the knot of passive RFID temperature sensor in the temp measuring system based on RFID according to an embodiment of the invention Structure block diagram.
Fig. 5 illustrates the schematic diagram of the operation principle of the temp measuring system based on RFID according to an embodiment of the invention.
The flow chart that Fig. 6 illustrates the temp measuring method based on radio frequency discrimination RFID according to an embodiment of the invention.
Fig. 7 illustrates another flow chart of the temp measuring method based on radio frequency discrimination RFID according to an embodiment of the invention.
Specific embodiment
Describe various exemplary embodiments, feature and the aspect of the present invention below with reference to accompanying drawing in detail.Identical in accompanying drawing Reference represent the same or analogous element of function.The various aspects of embodiment are although shown in the drawings, but are removed Non-specifically is pointed out, it is not necessary to accompanying drawing drawn to scale.
Special word " exemplary " means " as example, embodiment or illustrative " here.Here as " exemplary " Illustrated any embodiment is should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, giving numerous details in specific embodiment below. It will be appreciated by those skilled in the art that without some details, the present invention can equally be implemented.In some instances, for Method well known to those skilled in the art, means, element and circuit are not described in detail, in order to highlight the purport of the present invention.
Embodiment 1
Fig. 1 illustrates that according to an embodiment of the invention (Radio Frequency Identification, penetrates based on RFID Frequency recognize) temp measuring system structured flowchart.As shown in figure 1, temp measuring system that should be based on RFID can include:Passive RFID temperature Degree sensor 100,200 data acquisition terminal 300 of rf gain antenna.
Wherein, the passive RFID temperature sensor 100 is arranged at point for measuring temperature (or referred to as measured point).The data acquisition Terminal 300 is for example connected by coaxial line with the rf gain antenna 200, the data collection station 300 and the radio frequency Gain antenna 200 is arranged at the position with the passive RFID temperature sensor 100 with setpoint distance.
Wherein, the data collection station 300 is used for by the rf gain antenna 200 to the rf gain antenna Each passive RFID temperature sensor 100 in 200 coverages sends thermometric order;To each passive RFID temperature sensor 100 Radiofrequency signal is sent, and the radiofrequency signal is used for the energy needed for thermometric being provided for each passive RFID temperature sensor 100. Each passive RFID temperature sensor 100, for carrying out thermometric, and the temperature that thermometric is obtained to the respective point for measuring temperature being located Data are sent to the data collection station 300 by the rf gain antenna 200.
In a kind of possible implementation, as shown in Figures 2 and 3, the passive RFID temperature sensor 100 includes: Thermometric and RFID integrated circuit 101 and passive passive RF (radio frequency) antenna 102.
Wherein, the thermometric is connected with the passive passive RF antenna 102 with RFID integrated circuit 101, the thermometric with RFID integrated circuit 101 is used for receiving the thermometric by the passive passive RF antenna 102 from the rf gain antenna 200 Order and the radiofrequency signal, carry out thermometric to the point for measuring temperature and obtain the temperature data;
The thermometric is additionally operable to increase by the passive passive RF antenna 102 and the radio frequency with RFID integrated circuit 101 Beneficial antenna 200 sends the temperature data to the data collection station 300.
In a kind of possible implementation, as shown in figure 4, the thermometric is included with RFID integrated circuit 101:First temperature Degree sensor 111, the first temperature measurement circuit 112 and passive RFID termination power 113;
The data collection station 300 is additionally operable to read the RSSI of first temperature sensor 111, and is penetrated by described Frequency gain antenna 200 and the passive passive RF antenna 102 are sent to first temperature measurement circuit 112 and are adapted with the RSSI Radiofrequency signal;
First temperature measurement circuit 112, for, under the driving of the radiofrequency signal, controlling first temperature sensor 111 measurements obtain the temperature data of corresponding point for measuring temperature;
The passive RFID termination power 113, for reading the temperature data from first temperature measurement circuit 112, and The temperature is sent to the data collection station 300 by the passive passive RF antenna 102 and the rf gain antenna 200 Degrees of data.
For example, thermometric and RFID integrated circuit 101 can using high precision measuring temperature and RFID IC chip come Realize.High precision measuring temperature and RFID IC chip are built-in temperature sensors of high precision (the first temperature sensor 111), super Low-power consumption temperature measurement circuit (the first temperature measurement circuit 112) and passive RFID termination power 113.Each passive RFID temperature sensor 100 have global unique numerical identification (identification, ID), can accurately distinguish each point for measuring temperature.Wherein, passive RFID Temperature sensor 100 can be communicated with data collection station 200 using such as ISO18000-6C/EPC Gen II agreement.
Further, passive passive RF antenna 102 can adopt PCB (Printed Circuit Board, printed circuit Plate) printed antenna.In the pcb, can flexible design FPC (Flexible Printed Circuit, flexible PCB) flexibility, To adapt to various mounting structures.
In a kind of possible implementation, as shown in Figures 2 and 3, the passive RFID temperature sensor 100 is also wrapped Include:Motherboard 103 and shell 104;
The top of the motherboard 103 can be provided with thermal insulation layer 105;
The top of the thermal insulation layer 105 is provided with the passive passive RF antenna 102;
The top of the passive passive RF antenna 102 is provided with the thermometric and RFID integrated circuit 101;
The shell 104 is enclosed located at the thermometric and RFID integrated circuit 101, the outside of the passive passive RF antenna, And the shell 104 can be fastened with the motherboard 103 and is integrated.
Wherein, motherboard 103 can cross chromium using copper, can carry out temperature acquisition, and play fixation.Such material 103 heat transfer performance of motherboard, oxidation resistance all adapt to the thermometric environment in power system with physical strength.Shell 104 is excellent High strength shell is selected, moisture-proof antistatic effect can be played, the internal temperature measurement circuit of protection is without damage, realizes non-maintaining.
In a kind of example, rf gain antenna 200 can adopt standard EPC Gen II UHF RFID antenna, can one To reading the data of multiple passive RFID temperature sensors 100 more.According to site environment, can select the day of all size is installed Line.For example, compact ceramic antenna 0-3 rice, 8dBi circular polarized antenna 0-10 rice, 12dBid linear polarized antenna 0-15 rice.
In a kind of example, the working frequency range of data collection station 300 can adopt 840M-960M, compatibility standard MODBUS bus, can access dependent surveillance terminal.Data collection station 300 can detect circuit with built-in aerial Time-sharing control, Hold multichannel acquisition time data.Support ISO18000-6C/EPC Gen II agreement RFID label tag.Additionally, data collection station 300 can store at least temperature data of 6 months, can achieve data statistic analysis in disconnection mode.Wireless data biography can be equipped with Defeated module, realizes wireless remote data monitoring.
In a kind of possible implementation, as shown in figure 5, the temp measuring system also includes:
Wireless data transmission terminal 400, is communicated with the data collection station 300, from the data collection station 300 Temperature data after reception processing, and to the temperature data after external equipment such as user's monitoring terminal transmission processe.
For example, wireless data transmission terminal 400 can adopt ISM (Industrial Scientific Medical, industrial scientific medical) frequency range Wireless Data Transmission, distant early warning is can achieve, solves difficult wiring and Cost Problems.
In a kind of possible implementation, the temp measuring system can apply to the detection to wind power system.This scene Under, the passive RFID temperature sensor 100 of the temp measuring system is installed on high current busbar and/or the switch cubicle of the wind power system Contact, the high current busbar of the wind power system and/or switch cubicle contact are point for measuring temperature.The data collection station 300 and institute State that rf gain antenna 200 is installed on the high current busbar with the wind power system and/or switch cubicle contact has setpoint distance Position.
It is as follows that the specific works of the temp measuring system of the embodiment of the present invention realize process:
As shown in figure 5, data collection station 300 launches magnetic field energy by rf gain antenna 200, rf gain is scanned Passive RFID temperature sensor 100 in the range of antenna 200.After detecting passive RFID temperature sensor 100, data acquisition Terminal 300 sends thermometric order by rf gain antenna 200 to passive RFID temperature sensor 100.Passive by reading RSSI (the Received Signal of the temperature sensors of high precision (the first temperature sensor 111) of RFID temperature sensor 100 Strength Indication, received signal strength indicator) select suitable transmission power.Data collection station 300 is by penetrating Frequency gain antenna 200 sends the radiofrequency signal with suitable transmission power to passive RFID temperature sensor 100, gives first 112 energy of temperature measurement circuit is to complete thermometric.After the completion of thermometric, data collection station 300 passes through RFID (passive RFID termination power 113) temperature data in the first temperature measurement circuit 112 is read, and data collection station 300 can be according to the temperature data meter for being read Calculate actual temperature.The memory space that data collection station 300 is carried can retain current test data, and pass through fieldbus Temperature data is passed to user's monitoring terminal 500 to related protection equipment with wireless data transmission terminal 400.
In a kind of example, data collection station 300 can adopt such as below equation, according to the temperature data for being read Calculate actual temperature.
In above formula, T represents actual temperature, and unit can be degree Celsius.C, CODE1, CODE2 are passed for passive RFID temperature The calibration parameter of sensor 100, can write when passive RFID temperature sensor 100 dispatches from the factory.TEMP1 and TEMP2 are no respectively The temperature data that source RFID temperature sensor 100 is tested out according to CODE1, CODE2.
The temp measuring system of the embodiment of the present invention, RFID is combined with temperature measurement circuit, it is possible to achieve strong and weak detached numeral is surveyed Temperature, temperature-measuring results are not easily susceptible to interference.Data collection station provides survey by radiofrequency signal for each passive RFID temperature sensor Energy needed for temperature, can realize the passive thermometric of sensor contact.
Further, data collection station can read the temperature of each point for measuring temperature in real time from each passive RFID temperature sensor Data, are uploaded to monitoring system by data/address bus and wireless data transmission terminal, in time without the need for manual inspection.Also, adopt Wireless data transmission terminal, it is possible to reduce wiring and installation.
Further, the temp measuring system of the embodiment of the present invention, install from temperature measuring equipment safeguard, temperature measurement accuracy with real-time Property, the aspect such as human resources utilization cost-effective, can pre- high temperature-proof abnormal and cause second accident, be that safe power supply is provided with Try hard to keep barrier.
Further, the temp measuring system of the embodiment of the present invention is applied in wind power system, is conducive in wind power system It was found that during temperature anomaly, control wind power generation unit blade feathering and braking, try to avert accidents in time.
Therefore, the embodiment of the present invention solve easily being disturbed of traditional thermometric scheme, need battery, data not in real time, need Want the defects such as manual inspection.
Embodiment 2
The flow chart that Fig. 6 illustrates the temp measuring method based on RFID according to an embodiment of the invention.Referring to above-described embodiment 1 In Fig. 1 to Fig. 5, as shown in fig. 6, should temp measuring method based on RFID can include:
Step 501, data collection station 300 cover model by rf gain antenna 200 to the rf gain antenna 200 Each passive RFID temperature sensor 100 in enclosing sends thermometric order;
Step 502, data collection station 300 send radiofrequency signal, the radio frequency to each passive RFID temperature sensor 100 Signal is used for providing the energy needed for thermometric for each passive RFID temperature sensor 100;
Step 503, each passive RFID temperature sensor 100 pairs for receiving the thermometric order and the radiofrequency signal are each Thermometric is carried out from the point for measuring temperature being located, and the temperature data that thermometric is obtained is sent to institute by the rf gain antenna 200 State data collection station 300.
In a kind of possible implementation, as shown in Figures 2 and 3, the passive RFID temperature sensor 100 includes: Thermometric and RFID integrated circuit 101 and passive passive RF antenna 102.
As shown in fig. 7, in step 503, receiving each passive RFID temperature of the thermometric order and the radiofrequency signal Degree sensor carries out thermometric to the respective point for measuring temperature being located, and can include:
Step 601, thermometric and RFID integrated circuit 101 are by the passive passive RF antenna 102 and the rf gain Antenna 200 receives the thermometric order and the radiofrequency signal from the data collection station 300;
Step 602, thermometric are measured under the driving of the radiofrequency signal with RFID integrated circuit 101 and obtain corresponding thermometric The temperature data of point;
Step 603, thermometric and RFID integrated circuit 101 are by the passive passive RF antenna 102 and the rf gain Antenna 200 sends the temperature data to the data collection station 300.
In a kind of possible implementation, as shown in figure 4, the thermometric is included with RFID integrated circuit 101:First temperature Degree sensor 111, the first temperature measurement circuit 112 and passive RFID termination power 113.
In a kind of possible implementation, step 601 can include:First temperature sensor 111 is by described Passive passive RF antenna 102 and the rf gain antenna 200, receive the thermometric order from the data collection station 300 Afterwards, RSSI is sent to the data collection station 300, and receive from the data collection station 300 adaptable with the RSSI Radiofrequency signal.
Step 602 can include:First temperature measurement circuit 112 controls described the under the triggering of the radiofrequency signal One temperature sensor 111 measures the temperature data for obtaining corresponding point for measuring temperature.
Step 603 can include:The passive RFID termination power 113 reads described from first temperature measurement circuit 112 Temperature data, and by the passive passive RF antenna 102 and the rf gain antenna 200 to the data collection station 300 send the temperature data.
In a kind of possible implementation, as shown in Fig. 7 and Fig. 5, the temp measuring method also includes:
The temperature data of step 504, wireless data transmission terminal 400 from after 300 reception processing of the data collection station, And to the temperature data after external equipment such as 500 transmission processe of user's supervision equipment.
This programme high precision measuring temperature circuit solves the problems, such as interference and temperature measurement accuracy.Passive RFID technology solves power supply with power Electrically separated problem.Data collection station reads temperature data in real time, uploads in time, solves the problems, such as manual inspection.Wireless data is passed Defeated terminal, reduces wiring and installs.In terms of temperature measuring equipment installs maintenance, temperature measurement accuracy and real-time, human resources utilization etc. Cost-effective, pre- high temperature-proof causes second accident extremely, is that safe power supply provides powerful guarantee.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the scope of the claims.

Claims (10)

1. a kind of temp measuring system based on radio frequency discrimination RFID, it is characterised in that include:Passive RFID temperature sensor, radio frequency Gain antenna data acquisition terminal;
The passive RFID temperature sensor is arranged at point for measuring temperature;
The data collection station is connected with the rf gain antenna, the data collection station and the rf gain antenna It is arranged at the position that there is setpoint distance with the passive RFID temperature sensor;
Wherein, the data collection station is used for by the rf gain antenna into the rf gain antenna footprint Each passive RFID temperature sensor send thermometric order;Radiofrequency signal is sent to each passive RFID temperature sensor, described penetrate Frequency signal is used for providing the energy needed for thermometric for each passive RFID temperature sensor;
Each passive RFID temperature sensor, for carrying out thermometric, and the temperature that thermometric is obtained to the respective point for measuring temperature being located Degrees of data is sent to the data collection station by the rf gain antenna.
2. system according to claim 1, it is characterised in that the passive RFID temperature sensor includes:Thermometric with RFID integrated circuit and passive passive RF antenna;
Wherein, the thermometric is connected with the passive passive RF antenna with RFID integrated circuit,
The thermometric is used for receiving institute by the passive passive RF antenna from the rf gain antenna with RFID integrated circuit Thermometric order and the radiofrequency signal is stated, thermometric is carried out to the point for measuring temperature and obtains the temperature data;
The thermometric is additionally operable to by the passive passive RF antenna and the rf gain antenna to institute with RFID integrated circuit State data collection station and send the temperature data.
3. system according to claim 2, it is characterised in that the thermometric is included with RFID integrated circuit:First temperature Sensor, the first temperature measurement circuit and passive RFID termination power;
The data collection station is additionally operable to read the RSSI of first temperature sensor, and passes through the rf gain antenna The radiofrequency signal being adapted with the RSSI is sent with the passive passive RF antenna to first temperature measurement circuit;
First temperature measurement circuit, for, controlling first temperature sensor measurement to obtain under the driving of the radiofrequency signal Temperature data to corresponding point for measuring temperature;
The passive RFID termination power, for reading the temperature data from first temperature measurement circuit, and by the nothing The passive RF antenna in source and the rf gain antenna send the temperature data to the data collection station.
4. system according to claim 2, it is characterised in that the passive RFID temperature sensor also includes:Motherboard and Shell;
The top of the motherboard is provided with thermal insulation layer;
The top of the thermal insulation layer is provided with the passive passive RF antenna;
The top of the passive passive RF antenna is provided with the thermometric and RFID integrated circuit;
The shell is enclosed located at the thermometric and RFID integrated circuit, the outside of the passive passive RF antenna, and described outer Shell can be fastened with the motherboard and is integrated.
5. system according to any one of claim 1 to 4, it is characterised in that also include:
Wireless data transmission terminal, is communicated with the data collection station, from after the data collection station reception processing Temperature data, and to the temperature data after external equipment transmission processe.
6. system according to any one of claim 1 to 4, it is characterised in that the passive RFID temperature sensor peace High current busbar and/or switch cubicle contact loaded on wind power system, the high current busbar of the wind power system and/or switch cubicle connect Point is point for measuring temperature;
The data collection station and the rf gain antenna are installed on the high current busbar with the wind power system and/or open Close the position that cabinet contact has setpoint distance.
7. a kind of temp measuring method based on radio frequency discrimination RFID, it is characterised in that include:
Data collection station is by rf gain antenna to each passive RFID temperature in the rf gain antenna footprint Sensor sends thermometric order;
The data collection station sends radiofrequency signal to each passive RFID temperature sensor, and the radiofrequency signal is used for being described Each passive RFID temperature sensor provides the energy needed for thermometric;
Each passive RFID temperature sensor of the thermometric order and the radiofrequency signal is received to the respective point for measuring temperature being located Thermometric is carried out, and the temperature data that thermometric is obtained is sent to the data collection station by the rf gain antenna.
8. method according to claim 7, it is characterised in that the passive RFID temperature sensor includes:Thermometric with RFID integrated circuit and passive passive RF antenna;
Each passive RFID temperature sensor of the thermometric order and the radiofrequency signal is received to the respective point for measuring temperature being located Thermometric is carried out, including:
The thermometric is with RFID integrated circuit by the passive passive RF antenna and the rf gain antenna from the data Acquisition terminal receives the thermometric order and the radiofrequency signal;
The thermometric measures the temperature number for obtaining corresponding point for measuring temperature under the driving of the radiofrequency signal with RFID integrated circuit According to;
The thermometric is with RFID integrated circuit by the passive passive RF antenna and the rf gain antenna to the data Acquisition terminal sends the temperature data.
9. method according to claim 8, it is characterised in that the thermometric is included with RFID integrated circuit:First temperature Sensor, the first temperature measurement circuit and passive RFID termination power;
The thermometric is with RFID integrated circuit by the passive passive RF antenna and the rf gain antenna from the data Acquisition terminal receives the thermometric order and the radiofrequency signal, including:First temperature sensor passes through the passive quilt Dynamic RF antenna and the rf gain antenna, receive after the thermometric order from the data collection station, adopt to the data Collection terminal sends RSSI, and receives the radiofrequency signal being adapted with the RSSI from the data collection station;
The thermometric measures the temperature number for obtaining corresponding point for measuring temperature under the driving of the radiofrequency signal with RFID integrated circuit According to, including:First temperature measurement circuit controls first temperature sensor measurement to obtain under the triggering of the radiofrequency signal The temperature data of corresponding point for measuring temperature;
The thermometric is with RFID integrated circuit by the passive passive RF antenna and the rf gain antenna to the data Acquisition terminal sends the temperature data, including:The passive RFID termination power reads described from first temperature measurement circuit Temperature data, and sent to the data collection station by the passive passive RF antenna and the rf gain antenna described Temperature data.
10. the method according to any one of claim 7 to 9, it is characterised in that also include:
Temperature data of the wireless data transmission terminal from after the data collection station reception processing, and at external equipment transmission Temperature data after reason.
CN201610939601.8A 2016-10-25 2016-10-25 Temp measuring system and method based on RFID Pending CN106482845A (en)

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