CN112082468B - Ultrahigh frequency passive piezoelectric sensor with temperature compensation - Google Patents
Ultrahigh frequency passive piezoelectric sensor with temperature compensation Download PDFInfo
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- CN112082468B CN112082468B CN202010882497.XA CN202010882497A CN112082468B CN 112082468 B CN112082468 B CN 112082468B CN 202010882497 A CN202010882497 A CN 202010882497A CN 112082468 B CN112082468 B CN 112082468B
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- 238000013500 data storage Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
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Abstract
The invention provides an ultrahigh frequency passive piezoelectric sensor with temperature compensation, which comprises an energy acquisition module, a control module, a data storage module, a sensor module and a wireless communication module, wherein the energy acquisition module is connected with the control module; when the sensor works, according to the first received ultrahigh frequency data information, the control module controls the temperature sensor in the sensor module to work and stores the data information of the temperature sensor in the data storage module, wherein the enough working electric quantity is acquired by the energy acquisition module; when the sensor receives the second ultrahigh frequency data information, the control module controls the piezoelectric sensor in the sensor module to work, and correspondingly compensates the acquired piezoelectric sensor data according to the first acquired temperature data and then stores the data in the storage module; when the sensor receives the third ultrahigh frequency data information, the control module sends out the data information correspondingly stored in the data storage module through the wireless communication module.
Description
Technical Field
The invention relates to an ultrahigh frequency passive piezoelectric sensor with temperature compensation.
Background
In order to obtain some key data information in the environment where the sensor is located, a conventional general acquisition method is to transmit sampled data to a receiving end for processing or directly displaying by using a wired or wireless data transmission technology after the sensor is installed. In order to ensure that the system can normally operate for a certain period of time, electric energy needs to be supplied to the system, and a common method is to use a battery.
The battery can only provide fixed electric quantity, so that the service life is limited, and the battery can be discarded after being used up, thereby causing great harm to the environment.
Meanwhile, under the condition that the operating temperature changes greatly, the physical characteristic change quantity detected by the piezoelectric sensor is greatly influenced by the temperature, so that the data information detected by the sensors needs to be subjected to temperature compensation.
Meanwhile, due to the fact that multiple physical characteristics such as temperature, pressure, acceleration and the like need to be measured simultaneously, the service life of the battery is further shortened due to the fact that the multiple physical characteristics are required to be acquired simultaneously in some application occasions.
Therefore, it is necessary to provide a passive piezoelectric transducer with temperature compensation to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention provides an ultrahigh frequency passive piezoelectric sensor with temperature compensation, which does not need to depend on a battery for power supply.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: when ultrahigh frequency data information is received by the ultrahigh frequency passive piezoelectric sensor with temperature compensation for the first time, enough working electric quantity is acquired by the energy acquisition module, the control module controls the corresponding temperature sensor in the sensor module to work, and the temperature data information sensed by the temperature sensor is stored in the data storage module; when the ultrahigh frequency passive piezoelectric sensor with the temperature compensation receives second ultrahigh frequency data information, the control module controls the piezoelectric sensor in the sensor module to work, and meanwhile, collected data are correspondingly compensated according to the first collected temperature data and then stored in the storage module; when the ultrahigh frequency passive piezoelectric sensor with the temperature compensation receives the third ultrahigh frequency data information, the control module sends out the data information correspondingly stored in the data storage module through the wireless communication module.
Furthermore, the energy acquisition module is used for collecting ultrahigh frequency signal energy emitted by a matched reader-writer and supplying power to the system.
Further, the sensor module includes a temperature sensor and a piezoelectric sensor.
Furthermore, the data storage module is used for storing data information sensed by the temperature sensor and is used for the system to correspondingly compensate the data of the piezoelectric sensor when receiving a second ultrahigh frequency signal sent by the matched reader-writer.
Further, the wireless communication module works in an ultrahigh frequency band and receives and transmits ultrahigh frequency data information.
Further, the piezoelectric sensor module includes a deformation sensor, a pressure sensor, a displacement sensor, and the like, which can be distinguished according to the physical characteristics detected by the piezoelectric sensor module.
Furthermore, the data information sent by the wireless communication module comprises required sensor data information and the identification number of the sensor system, and is used for distinguishing when a plurality of systems of the invention are applied at the same time.
Furthermore, ultrahigh frequency signal energy required by the ultrahigh frequency passive piezoelectric sensor with temperature compensation is provided by a matched reader-writer.
The ultrahigh frequency passive piezoelectric sensor with the temperature compensation collects ultrahigh frequency electromagnetic wave signal energy in the environment by using an energy collecting module and converts the ultrahigh frequency electromagnetic wave signal energy into electric energy for system work.
Furthermore, the signal energy of the triple ultrahigh frequency electromagnetic wave is provided by an external reader-writer.
Further, the energy harvesting module has a common physical component, such as an antenna, with the wireless communication module.
Further, the sensor module comprises a temperature sensor and a piezoelectric sensor, and the sensor module can be a single module or can be embedded in the control module.
Further, the piezoelectric sensor module is a deformation sensor, a pressure sensor or a displacement sensor;
furthermore, the control module is a low-power-consumption single chip microcomputer.
Further, the data storage module is used for storing data of the sensor, and the data storage module can be a separate module or can be embedded in the control module.
Furthermore, after the ultrahigh frequency data information is received for the first time, the control module controls the temperature sensor to work, and the stored data of the temperature sensor is used as a temperature compensation parameter when the piezoelectric sensor works.
Further, after the ultrahigh frequency data information is received for the second time, the control module controls the sensor module to work, reads the data of the piezoelectric sensor, compensates the data of the piezoelectric sensor according to the data of the temperature sensor, and stores the data in the storage module.
Further, after the ultrahigh frequency data information is received for the third time, the control module sends out compensated piezoelectric sensor data through the wireless communication module.
The invention provides an ultrahigh frequency passive piezoelectric sensor with temperature compensation, wherein an ultrahigh frequency energy source is provided by external equipment, the information of the temperature sensor is read after the energy is collected by the sensor, and the information acquired by the piezoelectric sensor is sent out through a wireless communication module after the temperature compensation is carried out on the information through the energy source provided for the third time.
Drawings
Fig. 1 is a schematic diagram of an ultra-high frequency passive piezoelectric transducer with temperature compensation according to the present invention.
Fig. 2 is a schematic view of a sensor module of the present invention.
Detailed Description
The embodiments of the present invention will be specifically explained with reference to the accompanying drawings, which are only used for reference and illustration, and do not limit the scope of the invention.
Example 1:
referring to fig. 1 and 2, a schematic diagram of an ultra-high frequency passive piezoelectric transducer with temperature compensation according to the present invention includes the following components:
10: the ultrahigh frequency passive piezoelectric sensor with temperature compensation;
110: the energy acquisition module is used for acquiring electromagnetic wave energy emitted by an external matched reader-writer;
120: the control module can write a program for making a working logic;
130: the sensor module comprises a temperature sensor and a piezoelectric sensor;
140: a data storage module;
150: the wireless communication module is used for communicating with an external matched reader-writer;
when the ultrahigh frequency passive piezoelectric sensor with the temperature compensation receives ultrahigh frequency data information for the first time, the control module 120 controls a corresponding temperature sensor 1302 in the sensor module 130 to work, and stores temperature data information sensed by the temperature sensor 1302 in the data storage module 140; when the ultrahigh frequency passive piezoelectric sensor 10 with temperature compensation receives the second ultrahigh frequency data information, the control module 120 controls the piezoelectric sensor 1303 in the sensor module 130 to work, and meanwhile, the acquired data is correspondingly compensated according to the first acquired temperature data and then stored in the data storage module 140; when the ultrahigh frequency passive piezoelectric sensor 10 with temperature compensation receives the third ultrahigh frequency data information, the control module 120 sends out the data information correspondingly stored in the data storage module 140 through the wireless communication module 150.
When the ultrahigh frequency passive piezoelectric sensor 10 with temperature compensation is used, a matched reader-writer sends out ultrahigh frequency electromagnetic waves for the first time, and the energy acquisition module 110 acquires electromagnetic wave energy in the environment. For operation by the control module 120 module.
For example, referring to fig. 2, the sensor module includes a temperature sensor 1302 and a piezoelectric sensor 1303.
For example, the temperature sensor 1302 may be used to sense the temperature of the environment, and the control module 120 may compensate the data collected by the piezoelectric sensor module 1303 according to the data of the temperature sensor 1302.
In other embodiments, the piezoelectric sensor module 1303 may further include other sensors known to those skilled in the art, which may be configured according to the actual requirements of the present ultra-high frequency passive piezoelectric sensor 10 with temperature compensation, which is not limited by the embodiment of the present invention.
After the temperature sensor module 1302 obtains the corresponding data information, the control module 120 stores the data content information into the data storage module 140.
When the ultrahigh frequency passive piezoelectric sensor 10 with the temperature compensation receives the second ultrahigh frequency data information of the matched reader-writer. The control module 120 in the ultrahigh frequency passive piezoelectric sensor with temperature compensation 10 reads and compensates the data of the piezoelectric sensor 1303 according to the preset program logic and the preset program logic.
When the ultrahigh frequency passive piezoelectric sensor 10 with the temperature compensation receives the third ultrahigh frequency data information of the matched reader-writer. The control module 120 of the uhf passive piezoelectric sensor 10 with temperature compensation sends data information through the wireless communication module 150 according to a preset program logic.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention.
Claims (8)
1. The ultrahigh frequency passive piezoelectric sensor with the temperature compensation comprises an energy acquisition module, a control module, a sensor module, a data storage module and a wireless communication module, and is characterized in that when ultrahigh frequency data information is received by the ultrahigh frequency passive piezoelectric sensor with the temperature compensation for the first time, enough working electric quantity is acquired by the energy acquisition module, the control module controls corresponding temperature sensors in the sensor module to work, and temperature data information sensed by the temperature sensors is stored in the data storage module; when the ultrahigh frequency passive piezoelectric sensor with the temperature compensation receives second ultrahigh frequency data information, the control module controls the piezoelectric sensor in the sensor module to work, and meanwhile, collected data are correspondingly compensated according to the first collected temperature data and then stored in the data storage module; when the ultrahigh frequency passive piezoelectric sensor with the temperature compensation receives the third ultrahigh frequency data information, the control module sends out the data information correspondingly stored in the data storage module through the wireless communication module.
2. The ultra-high frequency passive piezoelectric sensor with temperature compensation of claim 1, wherein the energy collection module is used for collecting ultra-high frequency signal energy emitted by a matching reader-writer and supplying power to a system.
3. The temperature compensated UHF passive piezoelectric sensor of claim 1, wherein the sensor module comprises a temperature sensor and a piezoelectric sensor.
4. The ultrahigh-frequency passive piezoelectric sensor with temperature compensation of claim 1, wherein the data storage module is used for storing data information sensed by the temperature sensor and for making corresponding compensation on the piezoelectric sensor data by the control module when receiving a second ultrahigh-frequency signal sent by a matched reader-writer.
5. The temperature compensated uhf passive piezoelectric sensor of claim 1, wherein the wireless communication module operates in the uhf frequency band and receives and transmits uhf data information.
6. The temperature-compensated UHF passive piezoelectric sensor of claim 3, wherein the piezoelectric sensor is a strain gauge sensor, a pressure sensor or a displacement sensor distinguishable by the physical property it detects.
7. The ultrahigh frequency passive piezoelectric sensor with temperature compensation of claim 5, wherein the data information sent by the wireless communication module comprises the required sensor data information and an identification number of the sensor system, and is used for distinguishing when a plurality of ultrahigh frequency passive piezoelectric sensors with temperature compensation are simultaneously applied.
8. The ultra high frequency passive piezoelectric temperature compensated sensor of claim 2 wherein the ultra high frequency signal energy required by the ultra high frequency passive piezoelectric temperature compensated sensor is provided by a companion reader/writer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010882497.XA CN112082468B (en) | 2020-08-28 | 2020-08-28 | Ultrahigh frequency passive piezoelectric sensor with temperature compensation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010882497.XA CN112082468B (en) | 2020-08-28 | 2020-08-28 | Ultrahigh frequency passive piezoelectric sensor with temperature compensation |
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| CN112082468A CN112082468A (en) | 2020-12-15 |
| CN112082468B true CN112082468B (en) | 2022-09-13 |
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| CN113109802B (en) * | 2021-03-05 | 2023-12-26 | 福瑞泰克智能系统有限公司 | Target motion state judging method, device, radar equipment and storage medium |
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| CN104361388A (en) * | 2014-11-18 | 2015-02-18 | 中国科学院半导体研究所 | Ultrahigh-frequency wireless sensing tag |
| CN105526964A (en) * | 2015-12-02 | 2016-04-27 | 中国电子科技集团公司第四十九研究所 | Intelligent temperature and pressure sensing tag |
| CN106017574A (en) * | 2016-07-26 | 2016-10-12 | 成都布阿泽科技有限公司 | Energy collection based structural body health monitoring system and method |
| CN107077587A (en) * | 2014-09-03 | 2017-08-18 | 美卓流体控制有限公司 | Passive RFID sensors label and RFID reader |
| CN208367719U (en) * | 2018-07-09 | 2019-01-11 | 西南科技大学 | A kind of low-power consumption sensor power supply device based on passive RFID tags |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750826A (en) * | 2013-12-25 | 2014-04-30 | 杨松 | Wireless passive temperature measurement method, system and device for forming system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107077587A (en) * | 2014-09-03 | 2017-08-18 | 美卓流体控制有限公司 | Passive RFID sensors label and RFID reader |
| CN104361388A (en) * | 2014-11-18 | 2015-02-18 | 中国科学院半导体研究所 | Ultrahigh-frequency wireless sensing tag |
| CN105526964A (en) * | 2015-12-02 | 2016-04-27 | 中国电子科技集团公司第四十九研究所 | Intelligent temperature and pressure sensing tag |
| CN106017574A (en) * | 2016-07-26 | 2016-10-12 | 成都布阿泽科技有限公司 | Energy collection based structural body health monitoring system and method |
| CN208367719U (en) * | 2018-07-09 | 2019-01-11 | 西南科技大学 | A kind of low-power consumption sensor power supply device based on passive RFID tags |
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