CN104457683A - Tunnel deforming monitoring sensor capable of storing electric power with mechanical energy - Google Patents
Tunnel deforming monitoring sensor capable of storing electric power with mechanical energy Download PDFInfo
- Publication number
- CN104457683A CN104457683A CN201410717620.7A CN201410717620A CN104457683A CN 104457683 A CN104457683 A CN 104457683A CN 201410717620 A CN201410717620 A CN 201410717620A CN 104457683 A CN104457683 A CN 104457683A
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- China
- Prior art keywords
- mechanical energy
- rotating shaft
- shell
- monitoring sensor
- electric power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the field of electric power, in particular to a tunnel deforming monitoring sensor capable of storing electric power with mechanical energy. The sensor comprises an LED lamp and a power supply module. The power supply module comprises an energy storage mechanism which converts electric energy into mechanical energy and a power generating mechanism which converting mechanical energy into electric energy. The power generating mechanism comprises a permanent magnet and an inductance coil which is connected with the LED lamp. The power supply module comprises an outer shell which is provided with a light transmission opening. The LED lamp is placed behind the light transmission opening. A specially-designed mechanical energy electricity storage system is used, the mechanical energy electricity storage system stores mechanical energy, then the efficient mode that mechanical energy is converted into electric energy through a magnetic field switching power supply is used, and electric energy storing, converting and releasing are achieved. Humidity and water logging can be well resisted. The service life can be as long as dozens of years or even hundreds of years. The structure is simple, and cost is low.
Description
Technical field
The present invention relates to power domain, be specifically related to sensing detection field.
Background technology
Tunnel generation deformation is breakneck thing.
Summary of the invention
The object of the present invention is to provide a kind of tunnel deformation monitoring sensor adopting mechanical energy electric power storage, to solve the problems of the technologies described above.
Adopt the tunnel deformation monitoring sensor of mechanical energy electric power storage, comprise a LED, it is characterized in that, also comprise a power module, it is the accumulating mechanism of mechanical energy that described power module comprises one by electric energy conversion, described accumulating mechanism comprises a motor, a clockwork, and described clockwork comprises a clockwork spring, and is positioned at rotating shaft in the middle part of described clockwork spring, and the driving shaft of described motor connects described rotating shaft;
It is the power facility of electric energy that described power module also comprises one by changes mechanical energy, and described power facility comprises a permanent magnet, a telefault, and described telefault connects described LED;
Described power module also comprises shell, described telefault embeds in described shell, one is provided with for fixing the rotary shaft rack of described rotating shaft in described shell, described rotating shaft is positioned on described rotary shaft rack, described rotating shaft can be rotated around described rotary shaft rack, described permanent magnet is positioned at described shell, and described permanent magnet is fixed in described rotating shaft;
Described shell is provided with a printing opacity mouth, and described LED is positioned at the rear of described printing opacity mouth.The present invention adopts specially designed mechanical energy accumulating system, and what mechanical energy accumulating system stored is mechanical energy, then adopts magnetic field Switching power to be very efficiently converted into the mode of electric energy, realizes power storage and transforms release.Can well resist humidity and water logging.And serviceable life, can many decades be reached, even go up a century.And structure is simple, with low cost.
Described shell is provided with two openings, one flexible sheets is through two openings, described flexible sheets is positioned at the below of described clockwork, the middle part of described flexible sheets is provided with a stopper upward, described stopper is positioned at described shell, and described stopper is less than the maximum distance of described permanent magnet apart from described rotating shaft apart from the minimum distance of described rotating shaft.To block permanent magnet by stopper, and then realize the locking of clockwork spring position.
When the present invention uses, first the two ends of shell, flexible sheets are all fixed on tunnel, if there is fracture or will rupture in tunnel, tunnel is elongated, drives flexible catch to move, and then drives stopper telemechanical, after tunnel deformation exceedes certain value, the drive being blocked in clockwork spring mechanical energy that permanent magnet departs from catch is rotated, thus power module is generated electricity, and then driving LED lamp outwards sends alerting signal.
Or, described shell is provided with an opening, an air bag is provided with in described opening, described air bag comprises the cell parts being positioned at described shell and the outer cell parts be positioned at outside described shell, described interior cell parts is connected cell parts UNICOM with described outer cell parts by one, outer wall and the described opening of described connection cell parts are tightly connected, when described interior cell parts is full of gas, described interior cell parts is not less than the maximum distance of described permanent magnet apart from described rotating shaft apart from the minimum distance of described rotating shaft.To block permanent magnet by air bag, and then realize the locking of clockwork spring position.
When the present invention uses, first shell, outer cell parts are fixed on tunnel, if there is fracture or will rupture in tunnel, tunnel is elongated, draws outside outer cell parts, and gas enters outer cell parts by interior cell parts, thus make permanent magnet depart from the stop of interior cell parts, rotate in the drive of clockwork spring mechanical energy, thus power module is generated electricity, and then driving LED lamp outwards sends alerting signal.
The bottom of described shell, two ends of described flexible catch are equipped with gum.The present invention is pasted onto on tunnel by gum.
Two ends of described flexible catch are provided with bolt hole.The present invention is utilized by bolt hole and is bolted on tunnel.
Described opening is preferably 5 degree to 60 degree with the angle of vertical plane.To reduce the resistance of motion of flexible catch, improve sensitivity and the accuracy of alarm.
Two ends of described permanent magnet are all in semicircle shape.To reduce the friction with shell in rotation process.
The side of described end is provided with a protective layer.Described protective layer can be plastic layer, also can be metal level.
Described telefault is preferably made up of at least two single layer coils, all coilings in the shape of a spiral centered by described rotating shaft of each single layer coil, and the distance between two adjacent single layer coils is not less than 0.5mm.To produce larger electric energy.
Described telefault also connects a communicating wireless signals module by a regulator rectifier circuit.To send wireless alarm signal by communicating wireless signals module to Terminal Server Client.
Accompanying drawing explanation
Fig. 1 is part-structure schematic diagram of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
With reference to Fig. 1, adopt the tunnel deformation monitoring sensor of mechanical energy electric power storage, comprise a LED, also comprise a power module, it is the accumulating mechanism of mechanical energy that power module comprises one by electric energy conversion, accumulating mechanism comprises a motor, a clockwork 1, and clockwork 1 comprises a clockwork spring, and is positioned at rotating shaft in the middle part of clockwork spring, driving shaft 7 connection rotating shaft of motor; It is the power facility of electric energy that power module also comprises one by changes mechanical energy, and power facility comprises permanent magnet 6, telefault 2, and telefault 2 connects LED; Power module also comprises shell 4, and telefault 2 embeds in shell 4, and be provided with one in shell 4 for the rotary shaft rack of fixed rotating shaft, rotating shaft is positioned on rotary shaft rack, and rotating shaft can holder pivots around the shaft, and permanent magnet 6 is positioned at shell, and permanent magnet 6 is fixed in rotating shaft; Shell is provided with a printing opacity mouth, and LED is positioned at the rear of printing opacity mouth.
The present invention adopts specially designed mechanical energy accumulating system, and what mechanical energy accumulating system stored is mechanical energy, then adopts magnetic field Switching power to be very efficiently converted into the mode of electric energy, realizes power storage and transforms release.Can well resist humidity and water logging.And serviceable life, can many decades be reached, even go up a century.And structure is simple, with low cost.
Specific embodiment 1, with reference to Fig. 1, shell is provided with two openings, one flexible sheets 5 is through two openings, flexible sheets 5 is positioned at the below of clockwork 1, the middle part of flexible sheets 5 is provided with a stopper 3 upward, and stopper 3 is positioned at shell, and the minimum distance of stopper distance rotating shaft is less than the maximum distance of permanent magnet 6 apart from rotating shaft.To block permanent magnet 6 by stopper, and then realize the locking of clockwork spring position.When the present invention uses, first the two ends of shell, flexible sheets 5 are all fixed on tunnel, if there is fracture or will rupture in tunnel, tunnel is elongated, drives flexible catch to move, and then drives stopper telemechanical, after tunnel deformation exceedes certain value, the drive being blocked in clockwork spring mechanical energy that permanent magnet departs from catch is rotated, thus power module is generated electricity, and then driving LED lamp outwards sends alerting signal.
Specific embodiment 2, shell is provided with an opening, an air bag is provided with in opening, air bag comprises the cell parts being positioned at shell and the outer cell parts be positioned at outside shell, interior cell parts is connected cell parts UNICOM with outer cell parts by one, the outer wall and the opening that connect cell parts are tightly connected, and when interior cell parts is full of gas, the minimum distance of interior cell parts distance rotating shaft is not less than the maximum distance of permanent magnet distance rotating shaft.To block permanent magnet by air bag, and then realize the locking of clockwork spring position.When the present invention uses, first shell, outer cell parts are fixed on tunnel, if there is fracture or will rupture in tunnel, tunnel is elongated, draws outside outer cell parts, and gas enters outer cell parts by interior cell parts, thus make permanent magnet depart from the stop of interior cell parts, rotate in the drive of clockwork spring mechanical energy, thus power module is generated electricity, and then driving LED lamp outwards sends alerting signal.
Two ends of the bottom of shell, flexible catch are equipped with gum.The present invention is pasted onto on tunnel by gum.Two ends of flexible catch are provided with bolt hole.The present invention is utilized by bolt hole and is bolted on tunnel.
Opening is preferably 5 degree to 60 degree with the angle of vertical plane.To reduce the resistance of motion of flexible catch, improve sensitivity and the accuracy of alarm.
Two ends of permanent magnet are all in semicircle shape.To reduce the friction with shell in rotation process.The side of end is provided with a protective layer.Protective layer can be plastic layer, also can be metal level.
Telefault 2 is preferably made up of at least two single layer coils, all coilings in the shape of a spiral centered by rotating shaft of each single layer coil, and the distance between two adjacent single layer coils is not less than 0.5mm.To produce larger electric energy.Telefault also connects a communicating wireless signals module by a regulator rectifier circuit.To send wireless alarm signal by communicating wireless signals module to Terminal Server Client.
Telefault can also connect a thyristor by a rectification module.A load current regulating system is provided with between thyristor and rectification module, load current regulating system comprises a control module, control module is provided with a control signal output terminal, control module connects a voltage-adjusting unit by control signal output terminal, and the signal output part of voltage-adjusting unit connects a Current Control signal processing module; The secondary side of thyristor is provided with a constant current output circuit, the Current Control conditioning signal of signal processing module receiver voltage adjustment unit, and after analyzing and processing is carried out to conditioning signal, export to constant current output circuit, realize the adjustment of constant current output circuit output current.Adjustable output current of the present invention, to adapt to the need for electricity of load of multiple brand, multiple model.Current Control signal processing module communicates to connect a host computer.So that current parameters, service time, load model are uploaded host computer.
Control module is also provided with a control signal input end, control signal input end connection signal disposal system; A Current adjustment static database matched containing the output valve of constant current output circuit and the control signal of voltage-adjusting unit is provided with in host computer, host computer judges the output valve needing the constant current output circuit regulated, search the control signal matched, by signal processing system, control signal is passed to control module, export to voltage-adjusting unit by control module again, realize the adjustment to constant current output circuit output current.
Also be provided with a dynamic data base in host computer, host computer input signal to external world carries out record, and stored in dynamic data base, dynamic data base is in use expanded, and forms the dynamic data base that has Self-learning Model; Host computer judges the output valve needing the constant current output circuit regulated, the value that the output valve of constant current output circuit obtained according to unceasing study in dynamic data base and the control signal of voltage-adjusting unit match exports control signal, by signal processing system, control signal is passed to control module, export to voltage-adjusting unit by control module again, realize the adjustment to constant current output circuit output current.
Current Control signal processing module can adopt the signal processing modes such as short circuit output, filtering, signal limiter, signal conversion to the processing mode of conditioning signal.To realize eliminating interference, signal shaping.Here conditioning signal can be the electrical signal form such as voltage, electric current, PWM, frequency.Voltage-adjusting unit receives the control signal that control module exports, regulate AH (mxm. of conditioning signal) end hold with AW (conditioning signal) between and AW (conditioning signal) holds and AL (minimum of conditioning signal) hold between equivalent resistance, realization outputs to the control of the conditioning signal of Current Control signal processing module.Here conditioning signal can be the electrical signal form such as voltage, electric current, PWM, frequency.It is the circuit or the chip that are equivalent to resistance that the AH of voltage-adjusting unit holds between AW end and between AW end and AL end, and regulates equivalent resistance value according to the output signal of control module.Also comprise a reference voltage module, ORV+ (output voltage maximal value) end of reference voltage module, ORV-(output voltage minimum value) end connect AH end, the AL end of voltage-adjusting unit respectively, so that the output signal of control voltage adjusting module is in the scope of setting.According to the requirement generation reference voltage of the conditioning signal that Current Control exports with signal processing module.The AH end of voltage-adjusting unit is also connected a divider resistance between holding with the ORV+ of reference voltage module, the AL end of voltage-adjusting unit is connected another divider resistance between holding with the ORV-of reference voltage module 1, and the AH of two divider resistances and voltage-adjusting unit holds, AL holds, AW holds formation one bleeder circuit.Reference voltage module export voltage through bleeder circuit dividing potential drop, output regulation signal to Current Control signal processing module, to determine that the output signal of Current Control signal processing module is in set scope.Here, the conditioning signal of output is the signal form such as voltage, PWM.The conditioning signal control signal that can also be exported by control module that voltage-adjusting unit exports control.
Control module connects at least two voltage-adjusting units, and at least two voltage-adjusting units connect a Current Control signal processing module respectively, connect constant current output circuit respectively by Current Control signal processing module; Also comprise at least two reference voltage modules, between at least two reference voltage modules and voltage-adjusting unit, be respectively equipped with divider resistance.Realize a control module and control two constant current output circuits.Control module adopts the intelligent cells such as MCU (microcontroller), also can be the interface circuit that DLC (digital logic circuit), on-off circuit, analog regulation etc. can adjust duty.Current Control signal processing module and constant current output circuit can receive the electric signal that control module exports respectively, and adjust its duty according to the electric signal that control module exports.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not by the restriction of above-mentioned using method; what describe in above-mentioned using method and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. adopt the tunnel deformation monitoring sensor of mechanical energy electric power storage, comprise a LED, it is characterized in that, also comprise a power module, it is the accumulating mechanism of mechanical energy that described power module comprises one by electric energy conversion, described accumulating mechanism comprises a motor, a clockwork, and described clockwork comprises a clockwork spring, and is positioned at rotating shaft in the middle part of described clockwork spring, and the driving shaft of described motor connects described rotating shaft;
It is the power facility of electric energy that described power module also comprises one by changes mechanical energy, and described power facility comprises a permanent magnet, a telefault, and described telefault connects described LED;
Described power module also comprises shell, described telefault embeds in described shell, one is provided with for fixing the rotary shaft rack of described rotating shaft in described shell, described rotating shaft is positioned on described rotary shaft rack, described rotating shaft can be rotated around described rotary shaft rack, described permanent magnet is positioned at described shell, and described permanent magnet is fixed in described rotating shaft;
Described shell is provided with a printing opacity mouth, and described LED is positioned at the rear of described printing opacity mouth.
2. the tunnel deformation monitoring sensor of employing mechanical energy according to claim 1 electric power storage, it is characterized in that: described shell is provided with two openings, one flexible sheets is through two openings, described flexible sheets is positioned at the below of described clockwork, the middle part of described flexible sheets is provided with a stopper upward, described stopper is positioned at described shell, and described stopper is less than the maximum distance of described permanent magnet apart from described rotating shaft apart from the minimum distance of described rotating shaft.
3. the tunnel deformation monitoring sensor of employing mechanical energy according to claim 1 electric power storage, it is characterized in that: described shell is provided with an opening, an air bag is provided with in described opening, described air bag comprises the cell parts being positioned at described shell and the outer cell parts be positioned at outside described shell, described interior cell parts is connected cell parts UNICOM with described outer cell parts by one, outer wall and the described opening of described connection cell parts are tightly connected, when described interior cell parts is full of gas, described interior cell parts is not less than the maximum distance of described permanent magnet apart from described rotating shaft apart from the minimum distance of described rotating shaft.
4. the tunnel deformation monitoring sensor of the employing mechanical energy electric power storage according to Claims 2 or 3, is characterized in that: the angle of described opening and vertical plane is 5 degree to 60 degree.
5. the tunnel deformation monitoring sensor of the employing mechanical energy electric power storage according to claim 1,2 or 3, is characterized in that: two ends of described permanent magnet are all in semicircle shape.
6. the tunnel deformation monitoring sensor of employing mechanical energy according to claim 5 electric power storage, is characterized in that: the side of described end is provided with a protective layer.
7. the tunnel deformation monitoring sensor of employing mechanical energy according to claim 5 electric power storage, it is characterized in that: described telefault is made up of at least two single layer coils, the all coilings in the shape of a spiral centered by described rotating shaft of each single layer coil, the distance between two adjacent single layer coils is not less than 0.5mm.
8. the tunnel deformation monitoring sensor of the employing mechanical energy electric power storage according to claim 1,2 or 3, is characterized in that: described telefault also connects a communicating wireless signals module by a regulator rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717620.7A CN104457683A (en) | 2014-12-01 | 2014-12-01 | Tunnel deforming monitoring sensor capable of storing electric power with mechanical energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717620.7A CN104457683A (en) | 2014-12-01 | 2014-12-01 | Tunnel deforming monitoring sensor capable of storing electric power with mechanical energy |
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| Publication Number | Publication Date |
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| CN104457683A true CN104457683A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410717620.7A Pending CN104457683A (en) | 2014-12-01 | 2014-12-01 | Tunnel deforming monitoring sensor capable of storing electric power with mechanical energy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386798A (en) * | 2017-08-11 | 2019-02-26 | 宣邦智能科技（上海）有限公司 | A kind of intelligence side's lamp |
| CN112483130A (en) * | 2020-12-11 | 2021-03-12 | 中国矿业大学(北京) | Supporting method for high-stress soft rock roadway |
| CN112525053A (en) * | 2020-12-02 | 2021-03-19 | 中国人民解放军63926部队 | Collapse escape air bag ring bearing deformation testing device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080219831A1 (en) * | 2007-03-06 | 2008-09-11 | Jen-Yen Yen | Pipe flow-driven power generator |
| CN201162632Y (en) * | 2007-09-21 | 2008-12-10 | 游图明 | Mechanical energy accumulation battery |
| CN103636030A (en) * | 2011-06-09 | 2014-03-12 | 罗伯特·博世有限公司 | Method for detecting a triggering of a security device |
| CN103807089A (en) * | 2012-11-12 | 2014-05-21 | 上海市闵行区知识产权保护协会 | Electricity generating device |
-
2014
- 2014-12-01 CN CN201410717620.7A patent/CN104457683A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080219831A1 (en) * | 2007-03-06 | 2008-09-11 | Jen-Yen Yen | Pipe flow-driven power generator |
| CN201162632Y (en) * | 2007-09-21 | 2008-12-10 | 游图明 | Mechanical energy accumulation battery |
| CN103636030A (en) * | 2011-06-09 | 2014-03-12 | 罗伯特·博世有限公司 | Method for detecting a triggering of a security device |
| CN103807089A (en) * | 2012-11-12 | 2014-05-21 | 上海市闵行区知识产权保护协会 | Electricity generating device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386798A (en) * | 2017-08-11 | 2019-02-26 | 宣邦智能科技（上海）有限公司 | A kind of intelligence side's lamp |
| CN109386798B (en) * | 2017-08-11 | 2024-05-03 | 宣邦智能科技（上海）有限公司 | Intelligent square lamp |
| CN112525053A (en) * | 2020-12-02 | 2021-03-19 | 中国人民解放军63926部队 | Collapse escape air bag ring bearing deformation testing device and method |
| CN112483130A (en) * | 2020-12-11 | 2021-03-12 | 中国矿业大学(北京) | Supporting method for high-stress soft rock roadway |
| CN112483130B (en) * | 2020-12-11 | 2021-08-06 | 中国矿业大学(北京) | Supporting method for high-stress soft rock roadway |
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Application publication date: 20150325 |
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