CN114960401B - Self-energy-harvesting access board monitoring system - Google Patents
Self-energy-harvesting access board monitoring system Download PDFInfo
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- CN114960401B CN114960401B CN202210587241.5A CN202210587241A CN114960401B CN 114960401 B CN114960401 B CN 114960401B CN 202210587241 A CN202210587241 A CN 202210587241A CN 114960401 B CN114960401 B CN 114960401B
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- 238000003306 harvesting Methods 0.000 title claims abstract description 88
- 238000012544 monitoring process Methods 0.000 title claims abstract description 55
- 230000036541 health Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 47
- 239000000919 ceramic Substances 0.000 claims description 17
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 12
- 239000004917 carbon fiber Substances 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 10
- 230000008092 positive effect Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009191 jumping Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
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- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 239000002689 soil Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/183—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using impacting bodies
Abstract
The invention discloses a self-energy-harvesting access board monitoring system, which comprises: the self-energy-harvesting device is arranged below the bridge head butt strap, and the bridge head butt strap vibrates to drive the self-energy-harvesting device to vibrate so as to generate electric energy, and meanwhile, the vibration is absorbed by the self-energy-harvesting device, so that vibration impact on a lower foundation is reduced, and foundation settlement is slowed down; the data acquisition module is connected with the self-energy-harvesting device and is used for acquiring electric energy data generated by the self-energy-harvesting device; the monitoring cloud platform receives the electric energy data transmitted by the data acquisition module, the health state of the bridge head butt strap is judged through the stability of the electric energy data, when the bridge head butt strap is sunken and vibrates weakly, when the electric energy data received by the monitoring cloud platform is smaller, reverse currents are applied to two coils in the self-energy harvesting device, and the generated repulsive effect drives the bridge head butt strap to lift up. The system can convert the vibration energy of the bridge head butt strap into electric energy and monitor the health state of the bridge head butt strap; the bridge head butt strap can be reversely adjusted, so that the problem of bridge head jumping is avoided.
Description
Technical Field
The invention relates to the field of bridge monitoring systems. More particularly, the present invention relates to a self-energy-harvesting access panel monitoring system.
Background
The bridge head access board is a measure for reducing the sedimentation difference between the filling roadbed and the bridge abutment, is placed between the end part of the bridge abutment or the cantilever beam board and the filling, rotates along with the sedimentation of the filling, can reduce the vibration impact on the vehicle body and the bridge caused by the jump of the bridge head, and plays a role in buffering the driving to the bridge body. The long-term rain and vibration impact easily cause the reduction of the elastic modulus of the foundation, the aggravation of sedimentation, the lower part of the bridge head butt strap is loosened, and then the butt strap is cracked, the bridge head continuously jumps over the vehicle, and the safety of the vehicle and the structure is threatened.
According to the prior engineering design and construction investigation, the problems of bridge head butt strap and the like are often prevented by adopting a transition section drainage treatment method, a bench back backfill material and the like, and the butt strap is rarely monitored in real time. Statistics show that bridge head transition section diseases caused by the subsidence of bridge head abutment back embankment or bridge head butt strap breakage of different degrees account for 30 to 40 percent of all road diseases containing bridge structures in China, and huge economic losses caused by the diseases are also caused, and more than billions of yuan are consumed annually to repair and maintain the bridge head abutment back embankment, so that the bridge head butt strap real-time monitoring device has good economic benefit.
Disclosure of Invention
It is an object of the present invention to address at least the above problems and/or disadvantages and to provide at least the advantages described below.
It is still another object of the present invention to provide a self-energy-harvesting access panel monitoring system that can convert the vibration energy of the bridge head access panel into electrical energy, monitor the health status of the bridge head access panel, and also reverse adjust the bridge head access panel to avoid the problem of bridge head jump.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a self-energy storage access panel monitoring system, comprising:
the self-energy harvesting device is arranged below the bridge head butt strap, and the bridge head butt strap vibrates to drive the self-energy harvesting device to vibrate so as to generate electric energy;
the data acquisition module is connected with the self-energy-harvesting device and is used for acquiring electric energy data generated by the self-energy-harvesting device;
the monitoring cloud platform is in communication connection with the data acquisition module and receives the electric energy data transmitted by the data acquisition module, and the monitoring cloud platform judges the health state of the bridge head butt strap through the stability of the electric energy data, wherein when the bridge head butt strap is sunken and weak in vibration, when the electric energy data received by the monitoring cloud platform is smaller, reverse current is applied to two coils in the self-energy harvesting device, and the generated repulsive interaction drives the bridge head butt strap to lift up.
Preferably, the self-energy-harvesting access panel monitoring system, the self-energy-harvesting device comprises:
a support plate;
a first energy conversion component comprising: one end of the carbon fiber reinforced drum is arranged at the bottom of the bridge head butt strap, and the other end of the carbon fiber reinforced drum is arranged above the supporting plate; the energy collecting device is arranged on the inner wall of the carbon fiber reinforced drum, and the bridge head butt strap generates electric energy through piezoelectric positive effect when vibrating;
and the second energy conversion component is fixedly arranged below the supporting plate, and generates electric energy through magneto-electric conversion when the bridge head butt strap vibrates.
Preferably, the self-energy-harvesting access panel monitoring system, the self-energy-harvesting device further comprises a third energy conversion component, which comprises: one end of the first elastic component is arranged at the bottom of the bridge head butt strap; a magnetic arc groove connected with the other end of the first elastic part; the first coil is fixedly arranged on the supporting plate and positioned below the magnetic arc groove, wherein the magnetic arc groove vibrates up and down in the first coil when the bridge head butt strap vibrates, and electric energy is generated.
Preferably, the self-energy-harvesting access panel monitoring system, the energy collecting device specifically comprises:
a cube fixing seat;
the energy collection module, it is provided with 6, follow respectively six face directions of square fixing base are fixed on the square fixing base, every energy collection module all includes:
a first housing having a cylindrical shape;
the piezoelectric ceramics are provided with two ends which are respectively arranged in the first shell;
the first mass block is arranged in the first shell, two opposite side surfaces are respectively provided with a striking column, the striking columns are opposite to the piezoelectric ceramics, and a gap is reserved between the striking columns;
the two second elastic parts are respectively arranged on two opposite side surfaces of the first mass block, one end of each second elastic part is sleeved on the corresponding striking column, the other end of each second elastic part is fixed on the corresponding piezoelectric ceramic, and the end head of each piezoelectric ceramic extends into the corresponding second elastic part;
when the bridge head butt strap vibrates, the first mass block vibrates, the second elastic component deforms, and the striking post is enabled to strike the piezoelectric ceramic, so that electric energy is generated through piezoelectric positive effect.
Preferably, in the self-energy-harvesting access panel monitoring system, the second energy conversion component specifically includes:
the first limiting block and the second limiting block are arranged on the two opposite vertical inner walls of the second shell, a first vibrating membrane is arranged between the two first limiting blocks, and a second vibrating membrane is also arranged between the two second limiting blocks;
a first magnet fixedly provided above the first diaphragm, and a second coil provided around the first magnet;
a second magnet fixedly disposed below the second diaphragm, and a third coil disposed around the second magnet;
the second mass block is fixedly arranged below the first vibrating membrane, and third vibrating membranes are arranged on two side surfaces of the second mass block and are fixed on the inner wall of the second shell;
the shell wall between the first limiting block and the second limiting block is made of elastic materials, and when reverse current is applied to the second coil and the third coil, the second energy conversion component is pushed up by the repulsive force, so that the bridge head butt strap is driven to lift up.
Preferably, in the self-energy-harvesting access panel monitoring system, the second energy conversion component further includes a first pad, which is fixedly disposed on the first diaphragm, and the first magnet is fixed on the first pad:
the second cushion block is fixedly arranged below the second vibrating diaphragm, and the second magnet is fixed on the bottom surface of the second cushion block.
Preferably, the self-energy-harvesting access panel monitoring system, the self-energy-harvesting device further comprises: a first storage battery disposed under the support plate;
a second battery provided below the second energy conversion member;
the support sleeve is provided with a first support sleeve and a second support sleeve, a first through hole and a second through hole are formed in the bottom of the bridge head butt strap, the first elastic component is connected with the first support sleeve through the first through hole, and the carbon fiber reinforced barrel is connected with the second support sleeve through the second through hole.
Preferably, the self-energy-harvesting access panel monitoring system further comprises solar equipment and wind energy equipment, wherein the solar equipment and the wind energy equipment are connected with the first storage battery or the second storage battery.
Preferably, the self-energy-harvesting access panel monitoring system, the self-energy-harvesting device further comprises: a power amplifier connected to the second energy conversion means for amplifying an electrical signal;
the vibration exciter is connected with the power amplifier, and the signal amplified by the power amplifier excites the vibration exciter to vibrate, so that the self-energy harvesting device is driven to vibrate.
Preferably, the self-energy-harvesting access board monitoring system further comprises an energy collecting circuit connected with the self-energy-harvesting device, and the data collecting module is connected with the energy collecting circuit;
and the wireless transmission module is connected with the data acquisition module and used for transmitting the data acquired by the data acquisition module to the receiving terminal, and the receiving terminal is used for transmitting the data to the monitoring cloud platform.
The invention at least comprises the following beneficial effects:
1. the self-energy-harvesting device comprises a first energy conversion component, a second energy conversion component and a third energy conversion component, and when the bridge head butt strap vibrates, the self-energy-harvesting device is driven to vibrate, so that a striking column in the first energy conversion component strikes piezoelectric ceramics, electric energy is generated through a piezoelectric positive effect, a second coil and a third coil in the second energy conversion component cut magnetic force lines to generate electric energy, and a magnetic arc groove in the third energy conversion component vibrates up and down in the first coil to cut magnetic force lines to generate electric energy. Therefore, the self-energy-harvesting device can conveniently convert mechanical vibration caused by repeated impact of the vehicle on the bridge head butt strap into electric energy, and meanwhile, the vibration is absorbed by the self-energy-harvesting device, so that vibration impact on a lower foundation is reduced, and foundation settlement is slowed down.
2. The data acquisition module that sets up can gather the electric energy data that produces from the energy device, then transmits the electric energy data of gathering to cloud monitoring platform through wireless transmission module, the cloud monitoring platform just can real-time supervision just like this produces the condition of electric energy from the energy device to through electric energy parameter, like voltage, the change characteristic of electric current, judge whether the bridge end strap is in normal state, when the bridge end strap is sunken, the electric energy data that produces from the energy device can necessarily reduce, consequently, the cloud monitoring platform can in time discover the condition that the bridge end strap is sunken.
3. When the bridge head butt strap is found to sink, the second coil and the third coil are applied with reverse current, so that the second coil moves upwards under the repulsive action, the supporting plate is jacked upwards, and then the bridge head butt strap is driven to lift up to generate reverse displacement.
4. When the electric energy data generated by sinking the bridge head butt strap is reduced, the power amplifier can amplify the electric signals and excite the vibration exciter to vibrate, so that the self-energy harvesting device is driven to vibrate, and electric energy is generated.
5. The self-energy-harvesting device has good robustness, is convenient and flexible to manufacture and install, and can be used for long-term field bridge structural systems.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a self-energy-harvesting access panel monitoring system according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of an energy harvesting device in a self-harvesting access panel monitoring system according to one embodiment of the invention;
FIG. 3 is a schematic diagram of an energy harvesting module according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a second energy conversion component of the self-harvesting access panel monitoring system according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of the control relationship of the self-energy-harvesting access panel monitoring system in accordance with one embodiment of the present invention;
fig. 6 is a schematic diagram of the structure between the bridge head strap and the main beam of the self-energy-harvesting strap monitoring system according to an embodiment of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 6, the self-energy-harvesting access panel monitoring system provided by the embodiment of the invention includes: the self-energy harvesting device 1 is arranged below the bridge head butt strap 2, and the bridge head butt strap 2 vibrates to drive the self-energy harvesting device 1 to vibrate so as to generate electric energy; the data acquisition module is connected with the self-energy-harvesting device and is used for acquiring electric energy data generated by the self-energy-harvesting device; the monitoring cloud platform is in communication connection with the data acquisition module and receives the electric energy data transmitted by the data acquisition module, and the monitoring cloud platform judges the health state of the bridge head butt strap through the stability of the electric energy data, wherein when the bridge head butt strap is sunken and weak in vibration, when the electric energy data received by the monitoring cloud platform is smaller, reverse current is applied to two coils in the self-energy harvesting device, and the generated repulsive interaction drives the bridge head butt strap to lift up.
In the above embodiment, the self-energy capturing device arranged below the bridge head butt strap can convert vibration energy generated by repeated impact of a vehicle on the bridge head butt strap into electric energy, the data acquisition module can acquire generated electric energy data and transmit the generated electric energy data to the cloud monitoring platform, and the cloud monitoring platform is arranged in such a way that the cloud monitoring platform can monitor the health state of the bridge head butt strap in real time through the electric energy data, such as voltage and current changes, and timely find out whether the bridge head butt strap is sunken, if so, measures are taken, reverse current is applied to the self-energy capturing device, and the bridge head butt strap is driven to lift by repulsive force generated by two coils, so that reverse adjustment of the bridge head butt strap is realized. The problem of bridge head jumping is avoided.
When specifically setting up, as shown in fig. 6, the bridge end butt strap 2 is set up in one side of girder 3, abutment 4, and through the long-time repeated impact of vehicle, it is extremely easy to cause bridge end butt strap lower part to take off the sky, and then leads to the common disease of bridge end butt strap fracture, continuous jump of bridge end. Therefore, the self-energy-harvesting device is arranged between the bridge head butt strap 2 and the bench back filling soil 5, so that vibration energy generated by a vehicle to the bridge head butt strap can be converted into electric energy, the generated electric energy can be utilized to enable the cloud monitoring platform to monitor the condition of the bridge head butt strap in real time, and meanwhile, vibration is absorbed by the self-energy-harvesting device, vibration impact to a lower foundation is reduced, and foundation settlement is slowed down.
In order to enable the self-energy harvesting device to conveniently convert vibrational energy into electrical energy, in one embodiment, the self-energy harvesting device 1 comprises: a support plate 110; a first energy conversion component 120 comprising: a carbon fiber reinforced cylinder 121 having one end disposed at the bottom of the bridgehead strap 2 and the other end disposed above the support plate 110; an energy collecting device 122 disposed on an inner wall of the carbon fiber reinforced cylinder 121, the bridgehead strap 1 generating electric energy by a piezoelectric positive effect when vibrating; and a second energy conversion part 130 fixedly provided under the support plate 110, which generates electric energy through magneto-electric conversion when the bridgehead strap vibrates. The self-energy harvesting device 1 further comprises a third energy conversion component 140 comprising: a first elastic member 141 having one end provided at the bottom of the bridge head butt strap 2; a magnetic arc groove 142 connected to the other end of the first elastic member 141; and a first coil 143 fixedly disposed on the support plate 110 and below the magnetic arc groove 142, wherein the magnetic arc groove 142 vibrates up and down in the first coil 143 when the bridge head strap 2 vibrates, thereby generating electric energy.
As shown in fig. 2 and 3, the energy collecting device 122 specifically includes: a square fixing base 1221; the energy collection modules 1222, which are provided with 6, are respectively fixed on the cube fixing base 1221 from six surface directions of the cube fixing base 1221, and each energy collection module 1222 includes: a first housing 12221 having a cylindrical shape; a piezoelectric ceramic 12222 provided in two, two ends provided in the first housing 12221, respectively; a first mass block 12223 disposed inside the first housing 12221, and having a striking post 12223 disposed on opposite sides thereof, the striking post 12224 being disposed opposite to the piezoelectric ceramic 12222 with a gap therebetween; the second elastic members 12225 are respectively arranged on two opposite side surfaces of the first mass block 12223, one end of the second elastic member 12225 is sleeved on the striking column 12224, the other end of the second elastic member is fixed on the piezoelectric ceramics 12222, and the end head of the piezoelectric ceramics 12222 extends into the second elastic member 12225; wherein the first mass 12223 is vibrated when the bridge deck 2 vibrates, and the second elastic member 12225 is deformed to cause the striking pin 12224 to strike the piezoelectric ceramic 12222, thereby generating electric energy by a piezoelectric positive effect.
As shown in fig. 4, the second energy conversion unit 130 specifically includes: a second housing 1301, wherein a first limiting block 1302 located above and a second limiting block 1303 located below are arranged on two opposite vertical inner walls of the second housing, a first vibrating membrane 1304 is arranged between the two first limiting blocks 1302, and a second vibrating membrane 1305 is also arranged between the two second limiting blocks 1303; a first magnet 1306 fixedly provided above the first diaphragm 1304, and a second coil 1307 provided around the first magnet 1306; a second magnet 1308 fixedly provided below the second diaphragm 1305, and a third coil 1309 is provided around the second magnet 1308; a second mass block 1310 fixedly provided below the first diaphragm 1304, a third diaphragm 1311 being provided on both side surfaces of the second mass block 1310, the third diaphragm 1311 being fixed to an inner wall of the second housing 1301; wherein, the shell wall between the first stop block 1302 and the second stop block 1303 is made of elastic material, and when a reverse current is applied to the second coil 1307 and the third coil 1309, the repulsive force generated by the repulsive force acts on the second energy conversion member 130 to push up the support plate 110, so as to drive the bridge end strap 2 to lift up.
In the above embodiment, the self-energy harvesting device 1 includes the first energy conversion member 120, the second energy conversion member 130, and the third energy conversion member 140, and when the bridge deck 2 vibrates, the self-energy harvesting device 1 is driven to vibrate, so that the striking post in the first energy conversion member strikes the piezoelectric ceramic, and generates electric energy through the positive piezoelectric effect, so that the second coil and the third coil in the second energy conversion member cut magnetic lines of force to generate electric energy, and the magnetic arc slot in the third energy conversion member vibrates up and down in the first coil to cut magnetic lines of force to generate electric energy. Therefore, the self-energy-harvesting device can conveniently convert mechanical vibration caused by repeated impact of the vehicle on the bridge head butt strap into electric energy.
When specifically setting up, still be provided with the shell from energy storage device, can enclose first energy conversion part and third energy conversion part to and the backup pad, protect. The second energy conversion member is disposed below the support plate and is located outside the housing.
When the energy collecting device is specifically arranged, the energy collecting device can be fixed on the inner wall of the carbon fiber reinforced drum through the steel wire, and the energy collecting device belongs to a floating magnetic end. The first elastic member and the second elastic member are preferably springs. Since the first housing is cylindrical, the shape of the first mass is preferably set to be cylindrical. The housing wall between the first limiting block and the second limiting block is made of an elastic material, and the embodiment of the invention is not particularly limited as to the elastic material of the housing wall, as long as the housing wall is made of a material capable of stretching and contracting to have elasticity, so that when reverse current is applied to the second coil and the third coil to generate a repulsive effect, the housing wall between the first limiting block and the second limiting block can stretch along with the movement of the second coil.
In one embodiment, the self-energy-harvesting access panel monitoring system, the second energy-conversion component 130 further comprises a first spacer 1312 fixedly disposed on the first diaphragm 1304, and the first magnet 1306 is fixed on the first spacer 1312: a second spacer 1313 fixedly disposed under the second diaphragm 1305, the second magnet 1308 being fixed on the bottom surface of the second spacer 1313.
In one embodiment, the self-energy-harvesting access panel monitoring system, the self-energy-harvesting device 1 further comprises: a first storage battery 150 disposed under the support plate 110; a second battery 160 disposed below the second energy conversion member 130; the support sleeve is provided with a first support sleeve 170 and a second support sleeve 180, a first through hole and a second through hole are formed in the bottom of the bridge head butt strap 2, the first elastic component 141 is connected with the first support 170 sleeve through the first through hole, and the carbon fiber reinforced barrel 121 is connected with the second support sleeve 180 through the second through hole. When the device is specifically arranged, a first coil in the third energy conversion component is electrically connected with the first storage battery, generated electric energy is stored by the first storage battery, an energy collection module in the first energy conversion component and a second coil and a third coil in the second energy conversion component are electrically connected with the second storage battery, and generated electric energy is stored by the second storage battery. Meanwhile, the electric energy in the second battery may also apply a reverse current to the coil in the second energy conversion member.
In one embodiment, the self-energy-harvesting access panel monitoring system further comprises a solar device and a wind energy device, wherein the solar device and the wind energy device are connected with the first storage battery or the second storage battery. The arrangement of the solar energy equipment and the wind energy equipment can further ensure the operation of the whole system and complement the condition of insufficient electric energy generated by the self-energy harvesting device.
In one embodiment, the self-energy-harvesting access panel monitoring system, the self-energy-harvesting device 1 further comprises: a power amplifier connected to the second energy conversion means for amplifying an electrical signal; the vibration exciter is connected with the power amplifier, and the signal amplified by the power amplifier excites the vibration exciter to vibrate, so that the self-energy harvesting device is driven to vibrate. The power amplifier and the vibration exciter can enable the self-energy harvesting device to vibrate and increase the generated electric energy when the generated electric energy is reduced when the bridge head butt strap is sunken.
In one embodiment, as shown in fig. 5, the self-energy-harvesting access panel monitoring system further includes an energy collecting circuit connected to the self-energy-harvesting device, and the data collecting module is connected to the energy collecting circuit; and the wireless transmission module is connected with the data acquisition module and used for transmitting the data acquired by the data acquisition module to the receiving terminal, and the receiving terminal is used for transmitting the data to the monitoring cloud platform.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. The application, modification and variation of the self-energy access panel monitoring system of the present invention will be apparent to those skilled in the art.
As described above, the embodiment of the invention can convert the vibration energy of the bridge head butt strap into electric energy, monitor the health state of the bridge head butt strap, and can reversely adjust the bridge head butt strap so as to avoid the problem of bridge head jumping.
Although embodiments of the invention have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (7)
1. Self-energy-harvesting access panel monitoring system, characterized by comprising:
the self-energy harvesting device is arranged below the bridge head butt strap, and the bridge head butt strap vibrates to drive the self-energy harvesting device to vibrate so as to generate electric energy;
the data acquisition module is connected with the self-energy-harvesting device and is used for acquiring electric energy data generated by the self-energy-harvesting device;
the monitoring cloud platform is in communication connection with the data acquisition module and receives the electric energy data transmitted by the data acquisition module, and judges the health state of the bridge head butt strap through the stability of the electric energy data, wherein when the bridge head butt strap is sunken and weak in vibration, when the electric energy data received by the monitoring cloud platform is smaller, reverse current is applied to two coils in the self-energy harvesting device, and the generated repulsive action drives the bridge head butt strap to lift;
wherein, the self-energy harvesting device includes:
a support plate;
a first energy conversion component comprising: one end of the carbon fiber reinforced drum is arranged at the bottom of the bridge head butt strap, and the other end of the carbon fiber reinforced drum is arranged above the supporting plate; the energy collecting device is arranged on the inner wall of the carbon fiber reinforced drum, and the bridge head butt strap generates electric energy through piezoelectric positive effect when vibrating;
the second energy conversion part, its fixed setting is in the below of backup pad, produce the electric energy through magnetoelectric conversion when the bridgehead strap vibrates, the second energy conversion part specifically includes: the first limiting block and the second limiting block are arranged on the two opposite vertical inner walls of the second shell, a first vibrating membrane is arranged between the two first limiting blocks, and a second vibrating membrane is also arranged between the two second limiting blocks; a first magnet fixedly provided above the first diaphragm, and a second coil provided around the first magnet; a second magnet fixedly disposed below the second diaphragm, and a third coil disposed around the second magnet; the second mass block is fixedly arranged below the first vibrating membrane, and third vibrating membranes are arranged on two side surfaces of the second mass block and are fixed on the inner wall of the second shell; the shell wall between the first limiting block and the second limiting block is made of elastic materials, and when reverse current is applied to the second coil and the third coil, the generated repulsive action enables the second energy conversion part to jack up the supporting plate upwards, so that the bridge head butt strap is driven to lift up;
the self-energy harvesting device further includes a third energy conversion component comprising: one end of the first elastic component is arranged at the bottom of the bridge head butt strap; a magnetic arc groove connected with the other end of the first elastic part; the first coil is fixedly arranged on the supporting plate and positioned below the magnetic arc groove, wherein the magnetic arc groove vibrates up and down in the first coil when the bridge head butt strap vibrates, and electric energy is generated.
2. The self-energy-harvesting access panel monitoring system of claim 1, wherein the energy harvesting device specifically comprises:
a cube fixing seat;
the energy collection module, it is provided with 6, follow respectively six face directions of square fixing base are fixed on the square fixing base, every energy collection module all includes:
a first housing having a cylindrical shape;
the piezoelectric ceramics are provided with two ends which are respectively arranged in the first shell;
the first mass block is arranged in the first shell, two opposite side surfaces are respectively provided with a striking column, the striking columns are opposite to the piezoelectric ceramics, and a gap is reserved between the striking columns;
the two second elastic parts are respectively arranged on two opposite side surfaces of the first mass block, one end of each second elastic part is sleeved on the corresponding striking column, the other end of each second elastic part is fixed on the corresponding piezoelectric ceramic, and the end head of each piezoelectric ceramic extends into the corresponding second elastic part;
when the bridge head butt strap vibrates, the first mass block vibrates, the second elastic component deforms, and the striking post is enabled to strike the piezoelectric ceramic, so that electric energy is generated through piezoelectric positive effect.
3. The self-energy bridge monitoring system of claim 1, wherein the second energy conversion component further comprises a first spacer fixedly disposed on the first diaphragm, the first magnet being fixed on the first spacer:
the second cushion block is fixedly arranged below the second vibrating diaphragm, and the second magnet is fixed on the bottom surface of the second cushion block.
4. The self-energy-harvesting access panel monitoring system of claim 1, wherein the self-energy-harvesting device further comprises: a first storage battery disposed under the support plate;
a second battery provided below the second energy conversion member;
the support sleeve is provided with a first support sleeve and a second support sleeve, a first through hole and a second through hole are formed in the bottom of the bridge head butt strap, the first elastic component is connected with the first support sleeve through the first through hole, and the carbon fiber reinforced barrel is connected with the second support sleeve through the second through hole.
5. The self-harvesting access panel monitoring system of claim 4, further comprising a solar device and a wind energy device, each connected to either the first battery or the second battery.
6. The self-energy-harvesting access panel monitoring system of claim 1, wherein the self-energy-harvesting device further comprises: a power amplifier connected to the second energy conversion means for amplifying an electrical signal;
the vibration exciter is connected with the power amplifier, and the signal amplified by the power amplifier excites the vibration exciter to vibrate, so that the self-energy harvesting device is driven to vibrate.
7. The self-energy harvestable patch monitoring system of claim 1, further comprising an energy harvesting circuit coupled to said self-energy harvesting device, said data acquisition module coupled to said energy harvesting circuit;
and the wireless transmission module is connected with the data acquisition module and used for transmitting the data acquired by the data acquisition module to the receiving terminal, and the receiving terminal is used for transmitting the data to the monitoring cloud platform.
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