CN117406040A - Wireless multi-parameter fusion sensor - Google Patents
Wireless multi-parameter fusion sensor Download PDFInfo
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- CN117406040A CN117406040A CN202311382709.8A CN202311382709A CN117406040A CN 117406040 A CN117406040 A CN 117406040A CN 202311382709 A CN202311382709 A CN 202311382709A CN 117406040 A CN117406040 A CN 117406040A
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- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 11
- 230000003238 somatosensory effect Effects 0.000 claims description 6
- 230000005291 magnetic effect Effects 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
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- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005676 thermoelectric effect Effects 0.000 description 2
- ZHBBDTRJIVXKEX-UHFFFAOYSA-N 1-chloro-2-(3-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=CC=CC=2)Cl)=C1 ZHBBDTRJIVXKEX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a wireless multi-parameter fusion sensor, which comprises a closed container formed by a sensor shell and an insulating cover, wherein a fusion detection unit, a signal processing unit and a wireless receiving and transmitting unit are arranged in the closed container; the signal processing unit is respectively and electrically connected with the wireless transceiver unit and the fusion detection unit, and the fusion detection unit is used for acquiring and sending vibration signals, ultrasonic signals and temperature signals to the signal processing unit and transmitting the vibration signals, the ultrasonic signals and the temperature signals to the far end through the wireless transceiver unit; the multi-parameter signal detection provides reliable data support for overall reliability assessment of the state of the power equipment, solves the problem of low integration level of the existing sensor equipment, and improves the working efficiency and the service performance of the sensor.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a wireless multi-parameter fusion sensor.
Background
Large-sized electric devices such as transformers, gas-insulated switchgear, reactors, motors, etc. are not only complex electric devices but also complex mechanical devices, and generally operate under high voltage and high current conditions, and internal mechanical and insulation defects thereof are main causes of faults in the operation of the devices. Typical mechanical defects in electrical equipment include poor contact of internal electrical contacts, the presence of metallic foreign matter inside, loosening of insulators and fasteners, etc., and abnormal vibration signals can be generated under the action of electromotive force, electromagnetic force and magnetostriction. Meanwhile, the mechanical defects often cause insulation defects, partial discharge is generated under the action of a strong electric field, and high temperature and vibration generated by the partial discharge can further cause loosening, ablation, deformation and the like of the mechanical connecting piece, so that the severity of the mechanical defects is further increased. It can be seen that the mechanical and insulation defects of the electrical equipment are mutually influenced in the degradation process, so that mechanical vibration and partial discharge signals with relevant characteristics are generated, and in addition, temperature changes caused by the defects can also be used for analyzing fault conditions, so that in order to accurately detect and analyze defect state information of the electrical equipment, the mechanical vibration, partial discharge and temperature signals of the electrical equipment need to be detected simultaneously, and at present, the integration level of a single sensor is low, and the mechanical vibration, the partial discharge and the temperature signals cannot be detected simultaneously.
Chinese patent, publication No.: CN219829937U, publication date: 2023, 10 month 13 days discloses a wireless temperature vibration sensor, including the bottom plate, the terminal surface is fixed with the connecting seat under the bottom plate, the bottom plate up end is fixed with the unit ware storehouse, be fixed with card strip one around the unit ware storehouse inner wall respectively, the terminal surface is fixed with four screw grooves under the unit ware storehouse inner chamber, four screw groove up end swing joint has the PCB board, the counterpoint hole has been seted up around the PCB board respectively, counterpoint downthehole chamber cup joints the hand screw bolt with screw groove screw thread meshing. Although the sensor solves the problems of convenient disassembly and assembly of the traditional outer shell, high sealing effect of the shell and convenient installation or replacement of the PCB and the battery, the sensor does not provide detection of temperature and vibration, and meanwhile, needs to detect the voltage state of equipment and then ultrasonic data, so that the sensor can be used for more comprehensively detecting the state of power equipment.
Disclosure of Invention
The invention aims to solve the problem of low integration level of the existing sensor equipment, designs a wireless multi-parameter fusion sensor, can simultaneously acquire a temperature signal, a vibration signal and an ultrasonic signal of power equipment through a fusion detection unit integrated in a closed container, provides reliable data support for comprehensively evaluating the state of the power equipment, and overcomes the problem of low integration level of the existing sensor equipment.
In order to solve the technical problems, the invention adopts the following technical scheme: the wireless multi-parameter fusion sensor comprises a closed container formed by a sensor shell and an insulating cover, wherein a fusion detection unit, a signal processing unit and a wireless receiving and transmitting unit are arranged in the closed container; the signal processing unit is respectively and electrically connected with the wireless receiving and transmitting unit and the fusion detection unit; the fusion detection unit is used for acquiring vibration signals, ultrasonic signals and temperature signals, sending the vibration signals, the ultrasonic signals and the temperature signals to the signal processing unit and transmitting the signals to the far end through the wireless receiving and transmitting unit.
In this scheme, can acquire power equipment's temperature, vibration and ultrasonic signal simultaneously through the integration detecting element of integration in closed container, ultrasonic signal can reflect power equipment's partial discharge state, will power equipment's temperature signal, vibration signal and ultrasonic signal transmit to the distal end, the distal end can be for possessing data analysis and management function's data platform or mobile terminal, provides reliable data support for the distal end carries out comprehensive reliability evaluation to power equipment state, has overcome the low problem of the integrated level of current sensor device.
Preferably, the fusion detection unit comprises a vibration detection subunit and an ultrasonic generation subunit; the ultrasonic wave generation subunit generates an ultrasonic wave signal based on the equipment vibration and the voltage state to act on the vibration detection subunit, and the vibration detection subunit generates a vibration signal based on the ultrasonic wave signal and transmits the vibration signal to the signal processing unit.
In the scheme, the ultrasonic generation subunit can generate ultrasonic signals by detecting the discharge state of the power equipment, generate vibration signals based on the ultrasonic signals and transmit the vibration signals to the signal processing unit, so that the current state information of the power equipment can be truly and reliably reflected.
Preferably, the fusion detection unit further comprises a temperature detection subunit; the temperature detection subunit is used for detecting the equipment somatosensory state signals and transmitting the equipment somatosensory state signals to the signal processing unit.
In the scheme, the temperature detection subunit can truly and reliably reflect the current temperature state information of the power equipment by detecting the temperature signal of the power equipment and transmitting the temperature signal to the signal processing unit.
Preferably, the vibration detecting subunit includes a backing block, a piezoelectric element, a first wire, and a conductive rod; the conducting rod is fixedly connected with the positive electrode end of the piezoelectric element, penetrates through the backing block and is fixedly nested with the backing block, and the conducting rod is electrically connected with the signal processing unit through the first lead.
In this scheme, backing piece detects ultrasonic wave signal, produces vibration signal and transmits it to signal processing unit by the conducting rod based on ultrasonic wave signal, and the conducting rod transmits piezoelectric element's output voltage signal to signal processing unit simultaneously, can effectively monitor the sensor power consumption situation and reflect power equipment's current mechanical vibration information.
Preferably, the ultrasonic wave generating subunit comprises a metal matching layer and an ultrasonic wave generating element arranged at the bottom end of the closed container, and the ultrasonic wave generating element is fixedly connected with the negative electrode end of the piezoelectric element through the metal matching layer.
In the scheme, through the metal matching layer, the sound intensity transmissivity between the ultrasonic wave generating element and the tested power equipment is greatly improved, acoustic impedance matching or filtering is realized, and the occurrence and transmission invariance of the waveform of an ultrasonic wave signal are ensured.
Preferably, the temperature detection subunit comprises a second wire and a temperature probe arranged at the proximal end of the bottom of the closed container, and the temperature probe is electrically connected with the signal processing unit through the second wire.
In the scheme, the temperature probe can measure the temperature signal of the power equipment in real time by utilizing the thermoelectric effect through the temperature gradient existing between the sensor and the power equipment, and reflect the current temperature condition of the power equipment in real time.
Preferably, the signal processing unit comprises an analog-to-digital conversion element, a control element and an operational amplifier element which are arranged on a PCB; the vibration signal and the ultrasonic signal are sequentially transmitted to the control element through the first lead, the operational amplifier element and the analog-to-digital conversion element; the temperature signal is transmitted to the control element via the second wire and the analog-to-digital conversion element in sequence.
In the scheme, the operational amplifier element pre-processes the vibration signal and the ultrasonic signal and provides the functions of direct current bias, signal amplification and noise filtering impedance matching, so that the signals received by the analog-to-digital conversion element are more accurate; the analog-digital conversion element converts the vibration signal, the ultrasonic signal and the temperature signal into corresponding digital signals and transmits the corresponding digital signals to the control element, and the control element performs edge calculation on the digital signals, so that the real-time detection performance is improved, and the processing pressure of the remote end on the vibration signal, the ultrasonic signal and the temperature signal is relieved.
Preferably, the signal processing unit further comprises a battery pack inserted on the PCB.
In this scheme, the battery package is pegged graft on the PCB board, provides the electric energy for the continuous operation of PCB board, makes the PCB board can receive and handle vibration signal, ultrasonic wave signal and temperature signal in real time.
Preferably, the device also comprises a magnetic lantern ring fixedly sleeved at the outer end of the closed container and close to the bottom end of the closed container.
In this scheme, use the fixed cup joint of magnetism lantern ring in the sensor outside, can be fixed in the measuring position that power equipment had ferromagnetic property with the sensor, the installation of the sensor of being convenient for is used, has avoided complicated circuit installation mode.
Preferably, the wireless transceiver unit includes a ceramic antenna disposed on the PCB board.
In the scheme, the wireless receiving and transmitting unit adopts the ceramic antenna, so that the signal transmission rate and the space utilization rate of the sensor are increased.
The invention has the beneficial effects that:
1. the fusion detection unit can simultaneously measure the temperature, vibration and ultrasonic signals of the equipment, and transmits the signals to the far end in a wireless transmission mode, so that reliable data support is provided for the overall reliability assessment of the state of the power equipment, the problem of low integration level of the existing sensor equipment is solved, and the detection efficiency of the power equipment is improved;
2. the signal processing unit can store, calculate and convert temperature, vibration and ultrasonic signals, so that the power consumption of the sensor is reduced, the data measurement stability is improved, and the working sensitivity of the sensor is improved;
3. the invention uses the wireless communication device, can carry on the remote control to a plurality of sensors through the customer end, facilitate remote on-line monitoring, distributed measurement and data analysis.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures.
Fig. 1 is a front anatomical view of a wireless multi-parameter fusion sensor according to the present invention.
Fig. 2 is a schematic structural diagram of a wireless multi-parameter fusion sensor according to the present invention.
Fig. 3 is a schematic diagram of a wireless multi-parameter fusion sensor according to the second embodiment of the present invention.
Fig. 4 is a diagram of a networking distributed measurement architecture of a wireless multi-parameter fusion sensor according to the present invention.
The figure indicates:
1. a metal matching layer; 2. a piezoelectric element; 3. a first backing block; 4. a second backing block; 5. a sensor housing; 6. a PCB board; 7. a ceramic antenna; 8. a battery pack; 9. a conductive rod; 10. a temperature probe; 11. an insulating cover; 13. a second ground fixing hole; 14. a magnetic collar; 15. a first wire; 16. and a second wire.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples, it being understood that the detailed description herein is merely a preferred embodiment of the present invention, which is intended to illustrate the present invention, and not to limit the scope of the invention, as all other embodiments obtained by those skilled in the art without making any inventive effort fall within the scope of the present invention.
Examples: as shown in fig. 1, a wireless multi-parameter fusion sensor comprises a closed container formed by a sensor shell 5 and an insulating cover 11, wherein a fusion detection unit, a signal processing unit and a wireless transceiver unit are arranged in the closed container; the signal processing unit is respectively and electrically connected with the wireless receiving and transmitting unit and the fusion detection unit; the fusion detection unit is used for acquiring vibration signals, ultrasonic signals and temperature signals, sending the vibration signals, the ultrasonic signals and the temperature signals to the signal processing unit and transmitting the signals to the far end through the wireless receiving and transmitting unit.
In this embodiment, the temperature, vibration and ultrasonic signals of the power equipment can be obtained simultaneously through the fusion detection unit integrated in the closed container, the ultrasonic signals can reflect the partial discharge state of the power equipment, the temperature signals, vibration signals and ultrasonic signals of the power equipment are transmitted to the far end, the far end can be a data platform or a mobile terminal with data analysis and management functions, reliable data support is provided for the far end to evaluate the overall reliability of the state of the power equipment, and the problem of low integration level of the existing sensor equipment is solved.
Specifically, the fusion detection unit includes a temperature detection subunit, a vibration detection subunit, and an ultrasonic generation subunit; the ultrasonic generation subunit generates an ultrasonic signal based on the vibration state of the equipment to act on the vibration detection subunit, the vibration detection subunit generates a vibration signal based on the ultrasonic signal and transmits the vibration signal to the signal processing unit, and the temperature detection subunit is used for detecting the somatosensory state signal of the equipment and transmitting the somatosensory state signal to the signal processing unit.
Specifically, the vibration detection subunit is constituted by a backing block, a piezoelectric element 2, a first wire 15, and a conductive rod 9; wherein the backing block is formed by pressing a first backing block 3 and a second backing block 4 into a whole; the conducting rod is fixedly connected with the positive end of the piezoelectric element, penetrates through the backing block and is fixedly nested with the backing block, and the conducting rod is electrically connected with the signal processing unit through a first wire.
Further, as shown in fig. 1, a plurality of piezoelectric elements are fixedly combined in series to form a whole having positive and negative electrodes; the positive pole of the piezoelectric element faces downwards, namely the upper surface and the lower surface are respectively the positive pole and the negative pole, the lower surface of the piezoelectric element is tightly adhered to the upper surface of the metal matching layer 1 by conductive silver paste, the upper surface of the piezoelectric element is tightly adhered to the lower surface of the backing block, and the upper part of the conductive rod and the fixing part of the bolt are connected to the PCB 6 through a first lead.
In this embodiment, the backing block detects the ultrasonic signal, generates the vibration signal and transmits the vibration signal to the signal processing unit by the conductive rod, and simultaneously the conductive rod transmits the output voltage signal of the piezoelectric element to the signal processing unit, so that the power utilization condition of the sensor can be effectively monitored and the current mechanical vibration information of the power equipment can be reflected.
Specifically, the ultrasonic wave generating subunit comprises a metal matching layer and an ultrasonic wave generating element arranged at the bottom end of the closed container; the ultrasonic wave generating element is fixedly connected with the negative electrode end of the piezoelectric element through the metal matching layer.
In the embodiment, the ultrasonic generating element can use a piezoelectric ceramic wafer, and the piezoelectric ceramic wafer has the characteristics of simple and light structure, high sensitivity, no magnetic field scattering overflow, no copper wire and magnet, low cost and low power consumption; the ultrasonic transducer is suitable for transmitting and receiving ultrasonic waves and infrasonic waves, can also detect pressure and vibration, and adopts the working principle of reversibility of piezoelectric effect; when voltage acts on the piezoelectric ceramic, mechanical deformation is generated along with the change of voltage and frequency; on the other hand, when the piezoelectric ceramic is vibrated, an electric charge is generated. By using this principle, when an electric signal is applied to a vibrator composed of two piezoelectric ceramics or one piezoelectric ceramic and one metal sheet, so-called a bimorph element, ultrasonic waves are emitted due to flexural vibration. Conversely, an electrical signal is generated when ultrasonic vibrations are applied to the bimorph element; based on the above, piezoelectric ceramics can be used as the ultrasonic sensor.
Specifically, the temperature detection subunit is constituted by a second wire 16 and a temperature probe 10, wherein the temperature probe is provided at the proximal end of the bottom of the closed container and is electrically connected to the signal processing unit through the second wire so as to transmit the measured temperature signal to the signal processing unit.
In this embodiment, the temperature probe may use a thermocouple, and the thermocouple may measure a temperature signal of the power equipment in real time by using a thermoelectric effect through a temperature gradient existing between the sensor and the power equipment, and reflect a current temperature condition of the power equipment in real time.
Specifically, the signal processing unit comprises an analog-to-digital conversion element, a control element and an operational amplifier element which are arranged on a PCB; the vibration signal is transmitted to the control element through the first lead, the operational amplifier element and the analog-digital conversion element in sequence; the temperature signal is transmitted to the control element through the second lead and the analog-to-digital conversion element in turn.
Further, as shown in fig. 1, the PCB board is fixedly installed above the sensor housing, the temperature probe is inserted into the hole groove on the upper surface of the metal matching layer and is fixed by insulating silica gel, and the temperature probe is connected with the analog-to-digital conversion element on the PCB board through the second wire; the backing block is sequentially connected with the operational amplifier element and the analog-to-digital conversion element on the PCB through the first lead.
In the embodiment, a low-power-consumption system-on-chip is arranged in the PCB, physical quantity signals of temperature, vibration and ultrasonic waves are collected, and edge calculation is carried out on the signals, so that the real-time detection performance is improved, and the processing pressure of a client is relieved; meanwhile, a computer random access memory, namely a RAM for short, is arranged in the sensor, and the RAM is used for expanding the measurement storage space of the analog-to-digital conversion element, increasing the number of single sampling data and storing the related measurement information of the sensor, so that the effect that the sensor is connected and used by a client is achieved; the operational amplifier element is used for preprocessing temperature, vibration and ultrasonic analog signals, and can provide direct current bias, signal amplification, noise filtering and impedance matching functions, so that signals received by the analog-to-digital conversion element are more accurate.
Specifically, as shown in fig. 1, the wireless transceiver unit comprises a ceramic antenna 7 arranged on a PCB board, and the ceramic antenna is mounted at a notch of an outer disk at the top of the sensor housing.
In the embodiment, the wireless receiving and transmitting unit adopts a ceramic antenna, so that the signal transmission rate and the space utilization rate of the sensor are increased; the notch is reserved at the joint of the outer disc at the top of the sensor shell and the ceramic antenna, so that the short circuit of a power supply and the short circuit of signals can be avoided, and the efficiency of the ceramic antenna is prevented from being influenced.
Specifically, as shown in fig. 1, the signal processing unit further includes a battery pack 8 plugged onto the PCB board.
In this embodiment, the battery pack is inserted on the PCB board, and provides electric energy for continuous operation of the PCB board, so that the PCB board can continuously receive and process the vibration signal, the ultrasonic signal and the temperature signal.
Specifically, as shown in fig. 2 and 3, a metal matching layer is installed at the bottom of the sensor housing, and three first ground fixing holes (not shown) of the PCB board are fixed with three second ground fixing holes 13 of the top outer disk of the sensor housing using screws; a magnetic collar 14 is mounted to the outer end of the closed container near its bottom end.
In this embodiment, the metal matching layer of the sensor can be buckled from the outer side by using the magnet ring or the bolt hole in the center of the lower surface of the metal matching layer is used for fixing the sensor, and the sensor is fixed at the measuring position of the power equipment to be measured, which has ferromagnetic properties, or the sensor is directly tightly attached to the measuring position of the power equipment to be measured, so that the installation and the use of the sensor are simplified, and the complex circuit installation mode is avoided.
Specifically, as shown in fig. 4, a plurality of sensors may form a distributed wireless measurement network, so as to implement multi-point distributed vibration, ultrasonic wave and temperature multi-parameter fusion measurement on the device to be measured.
In this embodiment, a wireless adapter group is connected through a client, where the client may be a PC or a mobile terminal, and the wireless adapter group includes a plurality of wireless transceivers; each wireless transceiver can control a plurality of sensors to work, a client can control a sensing node to scan, connect, read and write through wireless communication such as Bluetooth or Zigbee or Lora programming, and then the measured data can be uploaded to the network through 4G and 5G, wi-Fi.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a wireless multi-parameter fuses sensor, includes the closed container that comprises sensor housing and insulating lid, its characterized in that: a fusion detection unit, a signal processing unit and a wireless receiving and transmitting unit are arranged in the closed container;
the signal processing unit is respectively and electrically connected with the wireless receiving and transmitting unit and the fusion detection unit;
the fusion detection unit is used for acquiring vibration signals, ultrasonic signals and temperature signals, sending the vibration signals, the ultrasonic signals and the temperature signals to the signal processing unit and transmitting the signals to the far end through the wireless receiving and transmitting unit.
2. The wireless multi-parameter fusion sensor of claim 1, wherein: the fusion detection unit comprises a vibration detection subunit and an ultrasonic generation subunit;
the ultrasonic wave generation subunit generates an ultrasonic wave signal based on the equipment vibration and the voltage state to act on the vibration detection subunit, and the vibration detection subunit generates a vibration signal based on the ultrasonic wave signal and transmits the vibration signal to the signal processing unit.
3. The wireless multi-parameter fusion sensor of claim 1 or 2, wherein: the fusion detection unit also comprises a temperature detection subunit;
the temperature detection subunit is used for detecting the equipment somatosensory state signals and transmitting the equipment somatosensory state signals to the signal processing unit.
4. The wireless multi-parameter fusion sensor of claim 2, wherein: the vibration detection subunit comprises a mass block, a piezoelectric element, a first lead wire and a conductive rod;
the conducting rod is fixedly connected with the positive electrode end of the piezoelectric element, penetrates through the mass block and is fixedly nested with the mass block, and the conducting rod is electrically connected with the signal processing unit through the first lead.
5. The wireless multi-parameter fusion sensor of claim 2 or 4, wherein: the ultrasonic wave generating subunit comprises a metal matching layer and an ultrasonic wave generating element arranged at the bottom end of the closed container, and the ultrasonic wave generating element is fixedly connected with the negative electrode end of the piezoelectric element through the metal matching layer.
6. The wireless multi-parameter fusion sensor of claim 4, wherein: the temperature detection subunit comprises a second lead and a temperature probe arranged at the proximal end of the bottom of the closed container, and the temperature probe is electrically connected with the signal processing unit through the second lead.
7. The wireless multi-parameter fusion sensor of claim 6, wherein: the signal processing unit comprises an analog-to-digital conversion element, a control element and an operational amplifier element which are arranged on the PCB;
the vibration signal is transmitted to the control element through the first lead, the operational amplifier element and the analog-to-digital conversion element in sequence;
the temperature signal is transmitted to the control element via the second wire and the analog-to-digital conversion element in sequence.
8. The wireless multi-parameter fusion sensor of claim 7, wherein: the signal processing unit also comprises a battery pack which is inserted on the PCB.
9. The wireless multi-parameter fusion sensor of claim 1, wherein: the magnetic sleeve ring is fixedly sleeved at the outer end of the closed container and is close to the bottom end of the closed container.
10. The wireless multi-parameter fusion sensor of claim 1, wherein: the wireless receiving and transmitting unit comprises a ceramic antenna arranged on the PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311382709.8A CN117406040A (en) | 2023-10-24 | 2023-10-24 | Wireless multi-parameter fusion sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311382709.8A CN117406040A (en) | 2023-10-24 | 2023-10-24 | Wireless multi-parameter fusion sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117406040A true CN117406040A (en) | 2024-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311382709.8A Pending CN117406040A (en) | 2023-10-24 | 2023-10-24 | Wireless multi-parameter fusion sensor |
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| Country | Link |
|---|---|
| CN (1) | CN117406040A (en) |
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2023
- 2023-10-24 CN CN202311382709.8A patent/CN117406040A/en active Pending
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