CN114235235A - Intelligent wireless pressure sensor for micro-energy collection and pressure detection method - Google Patents
Intelligent wireless pressure sensor for micro-energy collection and pressure detection method Download PDFInfo
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- CN114235235A CN114235235A CN202010942121.3A CN202010942121A CN114235235A CN 114235235 A CN114235235 A CN 114235235A CN 202010942121 A CN202010942121 A CN 202010942121A CN 114235235 A CN114235235 A CN 114235235A
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- 238000001514 detection method Methods 0.000 title claims abstract description 93
- 230000003750 conditioning effect Effects 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000003306 harvesting Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 230000005284 excitation Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000013480 data collection Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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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
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction
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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
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2268—Arrangements for correcting or for compensating unwanted effects
- G01L1/2281—Arrangements for correcting or for compensating unwanted effects for temperature variations
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/001—Energy harvesting or scavenging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides an intelligent wireless pressure sensor for micro-energy collection and a pressure detection method, wherein the intelligent wireless pressure sensor comprises: the micro-energy collection module is used for collecting micro-energy of the environment; the power supply management module is connected with the micro-energy collection module and is used for conditioning and storing the micro-energy; the control module is connected with the power management module and used for controlling the strain detection module to start to execute pressure strain detection when the micro energy reaches a critical value and storing a result; the strain detection module is connected with the control module and used for executing pressure strain detection action under the control of the control module. The intelligent wireless pressure sensor with micro-energy collection and the pressure detection method provide stable energy for fasteners needing pressure detection for a long time, the integral structure adopts an integrated miniaturized design, the size is reduced, engineering installation is convenient, meanwhile, radio frequency excitation is added to assist data acquisition, and the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to an intelligent wireless pressure sensor for micro-energy collection and a pressure detection method.
Background
In large systems such as railways, electric power, telecommunications and bridges, a large number of fasteners are provided, and the fasteners can work in a field environment for a long time, and under the action of natural forces such as wind, rain, vibration and temperature change, bolt loosening and other events can occur. Due to the limitation of conditions such as power supply, installation, data acquisition and the like, the condition monitoring of the massive bolts is a very difficult problem, and in some systems such as railways, important bolts are inspected or detected one by one in a manual or semi-automatic mode, so that the efficiency is low.
By adopting the traditional pressure sensor method, long-term effective detection cannot be realized due to the limitation of power supply, and meanwhile, in order to avoid the potential danger brought to outdoor operation of workers by the traditional method, a measuring device which does not need external power supply and can provide electric energy for a long time is urgently needed for detecting the working state of a fastener in the field.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides an intelligent wireless pressure sensor with micro energy collection and a pressure detection method, which are used for solving the problem that the long-term detection of a fastener cannot be realized due to the power supply limitation in the prior art.
In order to achieve the above objects and other related objects, the present invention provides an intelligent wireless pressure sensor with micro-energy collection, which includes a micro-energy collection module for collecting micro-energy of an environment; the power supply management module is connected with the micro-energy collection module and is used for conditioning and storing the micro-energy; the control module is connected with the power management module and used for controlling the strain detection module to start to execute pressure strain detection when the micro energy reaches a critical value and storing a result; the strain detection module is connected with the control module and used for executing pressure strain detection action under the control of the control module.
In an embodiment of the present invention, the method further includes: and when the micro energy is lower than the critical value, entering a stop working state.
In an embodiment of the present invention, the method further includes: and the wireless communication module is connected with the control module and used for transmitting the stored detection result and the identification information to the external data acquisition unit in a wireless transmission mode when receiving an instruction of the external data acquisition unit in a working state.
In an embodiment of the present invention, the method further includes: and the radio frequency energy collection module is connected with the power management module and is used for obtaining the radio frequency energy emitted by the data collector and taking the radio frequency energy as an electric energy source when the collected micro energy of the environment is insufficient.
In an embodiment of the present invention, the micro energy collecting module, the power management module, the control module, and the strain detecting module are disposed on a detecting and controlling circuit board; the intelligent wireless pressure sensor further comprises: a metal pressure ring, a strain gauge, and a housing; wherein the content of the first and second substances,
the metal pressure ring is in a hollow metal cylinder form, the shell is fixed on the outer side wall of the metal pressure ring, the strain gauge is fixed on the outer surface of the metal pressure ring and located in the shell, the detection and control circuit board is arranged in an accommodating space formed by the shell and the metal pressure ring, and one end, far away from the inner side wall of the shell, of the detection and control circuit board corresponds to the position of the strain gauge.
In an embodiment of the present invention, the strain gauge is used for strain detection and temperature compensation; the detection strain gauge is arranged along the longitudinal direction, and the temperature compensation strain gauge is arranged along the horizontal direction.
To achieve the above and other related objects, the present invention provides a method for pressure detection based on micro-energy collection, the method comprising:
collecting micro-energy of the environment;
and conditioning and storing the micro energy, starting to execute pressure strain detection when the micro energy reaches a critical value, and storing the result.
In an embodiment of the present invention, the method further includes: and when the micro energy is lower than the critical value, entering a stop working state.
In an embodiment of the present invention, the method further includes: and in a working state, when an instruction of an external data acquisition unit is received, the control module transmits the stored detection result and the identification information to the external data acquisition unit in a wireless transmission mode.
In an embodiment of the present invention, the method further includes: and acquiring radio frequency energy emitted by the data acquisition unit, and taking the radio frequency energy as an electric energy source when the collected micro energy of the environment is insufficient.
As described above, the intelligent wireless pressure sensor with micro-energy collection and the pressure detection method of the invention use the micro-energy collection mode to provide power for the wireless pressure sensor, are suitable for the scene that pressure detection needs to be carried out for a long time but energy can not be provided, the metal pressure ring and the detection circuit are designed in an integrated and miniaturized mode, the volume is reduced, the engineering installation is convenient, the radio frequency excitation assists data acquisition, and the reliability of data transmission is ensured, and meanwhile, the minimum pressure detection times are ensured.
Drawings
FIG. 1 is a schematic circuit diagram of a micro-energy harvesting intelligent wireless pressure sensor in one embodiment of the present invention;
FIG. 2A is a schematic diagram illustrating an embodiment of a micro-energy harvesting intelligent wireless pressure sensor of the present invention;
FIG. 2B is a cross-sectional view of the intelligent wireless pressure sensor of the present invention shown in FIG. 2A, taken along the direction a-a;
FIG. 3 is a schematic view of an exemplary embodiment of a micro-energy harvesting intelligent wireless pressure sensor;
FIG. 4 is a flow chart illustrating a method for pressure measurement based on micro-energy collection according to an embodiment of the present invention;
FIG. 5 is a flow chart illustrating a method for pressure detection based on micro-energy collection according to another embodiment of the present invention;
FIG. 6 is a flow chart illustrating a method for pressure detection based on micro-energy collection according to another embodiment of the present invention.
Description of the element reference numerals
1 intelligent wireless pressure sensor
11 metal pressure ring
12 strain gage
13 detection and control circuit board
14 outer cover
2 bolt
3 nut
S41-S42
S51-S55
S61-S65
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The invention aims to provide an intelligent wireless pressure sensor with micro-energy collection and a pressure detection method, which are used for solving the problems of long-term pressure detection and data transmission in the environment without external power supply.
Referring to fig. 1, in an embodiment of the present invention, the smart wireless pressure sensor for micro-energy collection of the present invention includes:
the micro-energy collection module is used for collecting micro-energy of the environment;
the power supply management module is connected with the micro-energy collection module and is used for conditioning and storing the micro-energy;
the control module is connected with the power management module and used for controlling the strain detection module to start to execute pressure strain detection when the micro energy reaches a critical value and storing a result;
the strain detection module is connected with the control module and used for executing pressure strain detection action under the control of the control module.
Specifically, aiming at the problem that a pressure sensor works in the field for a long time and cannot acquire stable electric energy through a circuit for pressure detection and data transmission, the invention adopts a mode of collecting micro energy of the environment to provide electric energy for the sensor according to the characteristics that the pressure change of a detection point is slow and the detection can be carried out at a larger time interval under most long-term pressure detection application scenes, and a system finishes one-time detection when the collected micro energy exceeds a critical value, thereby solving the problem of long-term power supply of the sensor, simultaneously reducing the power consumption of a strain detection module, wherein the micro energy collection module collects the micro energy of the environment, can be configured with different types of vibration, photoelectricity, heat energy and the like according to different environments for collecting the micro energy of the environment, and the power management module conditions the micro energy collected by the micro energy collection module through an energy conditioning module of the power management module, and temporarily storing the micro energy in an energy cache module, when the micro energy reaches the critical value, starting a voltage regulation module by the power management module, outputting the stored micro energy as electric energy to provide power for a control and detection part of the intelligent wireless pressure sensor 1, controlling a strain detection module to start to execute pressure strain detection by the control module, and storing a result.
In one embodiment, the operation stop state is further entered when the micro energy is lower than the critical value.
Specifically, after the micro energy release output is electric energy, the micro energy storage value is lower than the critical value, and the power management module closes the voltage output, so that the intelligent wireless pressure sensor 1 enters a stop working state.
In one embodiment, the micro-energy collecting intelligent wireless pressure sensor of the present invention further comprises: and the wireless communication module is connected with the control module and used for transmitting the stored detection result and the identification information to the external data acquisition unit in a wireless transmission mode when receiving an instruction of the external data acquisition unit in a working state.
Specifically, the intelligent wireless pressure sensor 1 stores the sensor ID and the detection data after detection is completed in a working state, and when receiving the instruction of the data collector, the intelligent wireless pressure sensor 1 controls the control module to send the stored detection result and the identification information to the data collector through the wireless communication module.
In one embodiment, the micro-energy collecting intelligent wireless pressure sensor of the present invention further comprises: and the radio frequency energy collection module is connected with the power management module and is used for obtaining the radio frequency energy emitted by the data collector and taking the radio frequency energy as an electric energy source when the collected micro energy of the environment is insufficient.
Specifically, the micro energy collection module may have insufficient energy when collecting environmental micro energy, and at this time, the fastener needs to be detected, and energy may be collected by the radio frequency energy collection module, and the radio frequency energy collection module collects the auxiliary radio frequency excitation emitted by the data collector as an energy source, so as to activate the intelligent wireless pressure sensor 1 to operate, and provide power for pressure detection and data transmission.
As shown in fig. 2A and 2B, in an embodiment, further, the micro energy collecting module, the power management module, the control module, and the strain detecting module are disposed on a detecting and controlling circuit board 13; the intelligent wireless pressure sensor 1 further comprises: a metal pressure ring 11, a strain gauge 12, and a housing 14; wherein the content of the first and second substances,
the metal pressure ring 11 is in a hollow metal cylinder form, the shell 14 is fixed on the outer side wall of the metal pressure ring 11, the strain gauge 12 is fixed on the outer surface of the metal pressure ring 11 and is positioned in the shell 14, the detection and control circuit board 13 is arranged in an accommodating space formed by the shell 14 and the metal pressure ring 11, and one end, far away from the inner side wall of the shell 14, of the detection and control circuit board 13 corresponds to the position of the strain gauge 12.
It should be noted that the height and material of the metal pressure ring 11 can be adjusted according to different application requirements, for example, a steel cylinder can be adopted, the height of the steel cylinder is slightly higher than that of the housing 14, the steel cylinder is tightly pressed with the upper and lower fasteners during use, the housing 14 is made of a non-metal material, and is fixed on the outer side wall of the metal pressure ring 11 and sealed, so that rainwater is prevented from seeping into the housing to affect the operation of internal electronic components; the strain gauge 12 is tightly attached to the outer surface of the metal pressure ring, fixed through viscose for example, and used for strain detection and temperature compensation, wherein the strain gauge 12 is a resistance strain gauge and is divided into two types, one type of the strain gauge is arranged longitudinally along the height for pressure detection, and the other type of the strain gauge is arranged horizontally for eliminating the influence of the environmental temperature change on the resistance; the detection and control circuit board 13 is a core part of the whole sensor and mainly realizes functions of micro-energy collection, power management, pressure detection, wireless transmission and the like; the inner side wall of the shell 14 facing the metal pressure ring 11 is fixedly connected with the detection and control circuit board 13, and all devices are fixed and sealed through the shell 14.
Further, aiming at the problem of large volume of the traditional pressure sensing system, the invention integrates the metal pressure ring 11 with a strain detection module, a micro-energy collection module, a radio frequency energy collection module, a power management module, a wireless communication module and a control module, and installs the detection and control circuit board 13 tightly against the metal pressure ring 11, wherein the strain detection module is connected with the strain gauge 12 through a wire, the intelligent wireless pressure sensor 1 is in a ring-shaped structure in appearance and is slightly larger than the metal pressure ring 11 in size by one circle, when in use, the intelligent pressure sensor 1 is sleeved in a bolt-nut fastening system, as shown in fig. 3, the bolt 2 and the nut 3 are installed in large systems such as railways, electric power, telecommunication, bridges and the like for fastening installation, the intelligent wireless pressure sensor 1 is sleeved on the bolt 2, the intelligent wireless pressure sensor 1 is tightly pressed with the upper fastening piece and the lower fastening piece in a threaded screwing mode of the nut 3.
In addition, the present invention further provides a pressure detection method based on micro-energy collection, referring to fig. 4, in an embodiment, the method is applied to an intelligent wireless pressure sensor, and the method includes the following steps:
s41, collecting micro energy of the environment;
s42, conditioning, storing the micro energy, and when the micro energy reaches a critical value, starting to execute pressure strain detection and storing the result.
As shown in fig. 5 and 6, the following describes a specific implementation process of steps S41 to S42.
As shown in fig. 5, in an embodiment, the method for pressure detection based on micro-energy collection of the present invention includes the following steps:
step S51, the environment collection module collects environment micro energy;
step S52, the power management module conditions and stores the micro energy;
step S53, when the micro energy reaches the critical value, starting to execute pressure strain detection and storing the result;
step S54, when the micro energy is lower than the critical value, the working state is stopped;
and step S55, when receiving the instruction of the external data collector, sending the stored detection result and the identification information to the external data collector in a wireless transmission mode.
As shown in fig. 6, in another embodiment, the method for detecting pressure based on micro-energy collection of the present invention comprises the following steps:
step S61, acquiring radio frequency energy emitted by the data acquisition unit;
step S62, the power management module conditions and stores the micro energy;
step S63, when the micro energy reaches the critical value, starting to execute pressure strain detection and storing the result;
step S64, when the micro energy is lower than the critical value, the working state is stopped;
and step S65, when receiving the instruction of the external data collector, sending the stored detection result and the identification information to the external data collector in a wireless transmission mode.
Specifically, when external micro energy collection or radio frequency excitation signal energy collection reaches when the critical value, power management module regulation voltage, for intelligent wireless pressure sensor 1 control provides electric power with the detection part, the control module ware starts and controls low-power consumption strain detection module and accomplishes the detection of straining force to save the testing result, be less than when the energy storage value of collecting when the critical value, power management module closes voltage output, intelligent wireless pressure sensor 1 gets into and stops operating condition, works as intelligent wireless pressure sensor 1 receives under operating condition during data collection station's instruction, intelligent wireless pressure sensor 1 with last testing result through wireless transmission's mode to data collection station sends out.
In conclusion, the wireless pressure sensor is reliable and stable in structure, a micro-energy collection mode is used for providing power for the wireless pressure sensor, the wireless pressure sensor is suitable for a scene that pressure detection needs to be carried out for a long time but energy cannot be provided, meanwhile, the metal pressure ring and the detection circuit are integrally designed in a miniaturized mode, the size is reduced, engineering installation is convenient, radio frequency excitation is added to assist data acquisition, reliability of data transmission can be guaranteed, the minimum pressure detection times can be guaranteed, and working efficiency is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An intelligent wireless pressure sensor for micro-energy collection, comprising:
the micro-energy collection module is used for collecting micro-energy of the environment;
the power supply management module is connected with the micro-energy collection module and is used for conditioning and storing the micro-energy;
the control module is connected with the power management module and used for controlling the strain detection module to start to execute pressure strain detection when the micro energy reaches a critical value and storing a result;
the strain detection module is connected with the control module and used for executing pressure strain detection action under the control of the control module.
2. The smart wireless micro-energy harvesting pressure sensor according to claim 1, further comprising: and when the micro energy is lower than the critical value, entering a stop working state.
3. The smart wireless micro-energy harvesting pressure sensor according to claim 1, further comprising: and the wireless communication module is connected with the control module and used for transmitting the stored detection result and the identification information to the data acquisition unit in a wireless transmission mode when receiving an instruction of an external data acquisition unit in a working state.
4. The smart wireless micro-energy harvesting pressure sensor according to claim 1, further comprising: and the radio frequency energy collection module is connected with the power management module and is used for obtaining the radio frequency energy emitted by the data collector and taking the radio frequency energy as an electric energy source when the collected micro energy of the environment is insufficient.
5. The micro-energy harvesting intelligent wireless pressure sensor of claim 1, wherein the micro-energy harvesting module, the power management module, the control module, and the strain detection module are disposed on a detection and control circuit board; the intelligent wireless pressure sensor further comprises: a metal pressure ring, a strain gauge, and a housing; wherein the content of the first and second substances,
the metal pressure ring is in a hollow metal cylinder form, the shell is fixed on the outer side wall of the metal pressure ring, the strain gauge is fixed on the outer surface of the metal pressure ring and located in the shell, the detection and control circuit board is arranged in an accommodating space formed by the shell and the metal pressure ring, and one end, far away from the inner side wall of the shell, of the detection and control circuit board corresponds to the position of the strain gauge.
6. The smart wireless micro-energy harvesting pressure sensor according to claim 5, wherein the strain gauge is used for strain detection and temperature compensation; the detection strain gauge is arranged along the longitudinal direction, and the temperature compensation strain gauge is arranged along the horizontal direction.
7. A pressure detection method based on micro-energy collection is characterized by being applied to an intelligent wireless pressure sensor and comprising the following steps:
collecting micro-energy of the environment;
and conditioning and storing the micro energy, starting to execute pressure strain detection when the micro energy reaches a critical value, and storing the result.
8. The method for pressure detection based on micro-energy collection according to claim 7, further comprising: and when the micro energy is lower than the critical value, entering a stop working state.
9. The method for pressure detection based on micro-energy collection according to claim 7, further comprising: and in a working state, when an instruction of an external data acquisition unit is received, the stored detection result and the identification information are transmitted to the data acquisition unit in a wireless transmission mode.
10. The method for pressure detection based on micro-energy collection according to claim 7, further comprising: and acquiring radio frequency energy emitted by the data acquisition unit, and taking the radio frequency energy as an electric energy source when the collected micro energy of the environment is insufficient.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010942121.3A CN114235235A (en) | 2020-09-09 | 2020-09-09 | Intelligent wireless pressure sensor for micro-energy collection and pressure detection method |
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| CN202010942121.3A CN114235235A (en) | 2020-09-09 | 2020-09-09 | Intelligent wireless pressure sensor for micro-energy collection and pressure detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790949A (en) * | 2022-09-28 | 2023-03-14 | 武汉地震工程研究院有限公司 | Bolt connection state monitoring method based on wearable intelligent gasket |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075044Y (en) * | 2007-10-11 | 2008-06-18 | 李连秀 | Access type pressure transducer |
| CN104614103A (en) * | 2014-12-26 | 2015-05-13 | 复旦大学 | Wireless passive prestress sensor |
| CN106153113A (en) * | 2016-07-26 | 2016-11-23 | 成都布阿泽科技有限公司 | Sensor assembly for structure health detection |
| US20180095001A1 (en) * | 2015-02-05 | 2018-04-05 | Sikorsky Aircraft Corporation | Self-powered multi-functional structural health monitoring sensor |
| CN111371164A (en) * | 2020-04-13 | 2020-07-03 | 南京信息工程大学 | Self-powered high-sensitivity bridge stress detection device based on comprehensive environment energy collection and use method |
-
2020
- 2020-09-09 CN CN202010942121.3A patent/CN114235235A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075044Y (en) * | 2007-10-11 | 2008-06-18 | 李连秀 | Access type pressure transducer |
| CN104614103A (en) * | 2014-12-26 | 2015-05-13 | 复旦大学 | Wireless passive prestress sensor |
| US20180095001A1 (en) * | 2015-02-05 | 2018-04-05 | Sikorsky Aircraft Corporation | Self-powered multi-functional structural health monitoring sensor |
| CN106153113A (en) * | 2016-07-26 | 2016-11-23 | 成都布阿泽科技有限公司 | Sensor assembly for structure health detection |
| CN111371164A (en) * | 2020-04-13 | 2020-07-03 | 南京信息工程大学 | Self-powered high-sensitivity bridge stress detection device based on comprehensive environment energy collection and use method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790949A (en) * | 2022-09-28 | 2023-03-14 | 武汉地震工程研究院有限公司 | Bolt connection state monitoring method based on wearable intelligent gasket |
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