CN108363107A - A kind of well lid condition monitoring device based on magnetic sensing technology - Google Patents
A kind of well lid condition monitoring device based on magnetic sensing technology Download PDFInfo
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- CN108363107A CN108363107A CN201810159368.0A CN201810159368A CN108363107A CN 108363107 A CN108363107 A CN 108363107A CN 201810159368 A CN201810159368 A CN 201810159368A CN 108363107 A CN108363107 A CN 108363107A
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- Prior art keywords
- well lid
- monitoring device
- platform
- sensing technology
- device based
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
Abstract
The invention discloses a kind of well lid condition monitoring devices based on magnetic sensing technology, the device is made of detection part, slave computer, host computer and display portion, wherein detection part is located at below well lid, it includes mounting bracket, stepper motor, rotatable platform, sliding platform, alarm, permanent magnet and Hall sensor；Slave computer is a microcontroller, and the detection port carried is connect with the detection part below well lid, and serial ports is connected with communication interface with pc.The changes of magnetic field that slave computer is measured according to detection part determines whether well lid is damaged or loses, and determines whether to start alarm warning passerby, while providing well lid condition information to host computer, and display portion is used for showing well lid situation and its geographical location information；Multiple detection ports of slave computer are connected from the detection part below different well lids respectively, then the network monitoring to many well lid situations can be achieved.The present invention can avoid the appearance of the personal safety accident because of caused by manhole cover damage or loss.
Description
Technical field
The present invention relates to electromagnetism, singlechip technology, detection of magnetic field and data acquisition technologys etc., it is using well lid to magnetic field
The influence of distribution judges whether well lid is impaired or loses through detection of magnetic field.
Background technology
Well lid is common in city roadside or Around the house, and trampling or rolling will cause the prodigious drawing of generation of well lid lower surface to be answered
Power, can gradually occur drawing crack, it is damaged situations such as.Well lid is impaired or loses, and will cause road vehicle or personnel fall, to mistake
Safety toward personnel constitutes a threat to, and causes economic loss.
Patent CN201410600490, CN201420683699, CN201520558504, CN201410778131,
CN201410441597, CN201710297081 describe respective well lid monitoring technology, the equal nothing of monitoring system of introduction respectively
Method carries out earlier damage monitoring to tested well lid.To solve the above-mentioned problems, the present invention provides one kind being based on magnetic sensing technology
Well lid condition real-time monitoring device, can to well lid carry out early stage flaw detection, have non-destructive testing, precisely flaw detection, sensor environment
The advantages that adaptability is stronger has very strong practical value.
Invention content
The purpose of the present invention is to disclose a kind of well lid condition monitoring device based on magnetic sensing technology, it utilizes well lid pair
The influence of Distribution of Magnetic Field, by detection of magnetic field, capture well lid is impaired or loses information.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：Described device by detection part, under
Position machine, host computer and display portion form, and the detection part is integrally placed at below tested well lid, by mounting bracket, stepping electricity
Machine, rotatable platform, sliding platform, alarm, permanent magnet and Hall sensor composition, the stepper motor are installed on the peace
Fill the lower section of holder, shaft connect with the rotatable platform being placed in above the mounting bracket, the sliding platform by
Sliding block is connect with rotatable platform, is placed in the top of rotatable platform, and the permanent magnet is placed in sliding platform with Hall sensor
Top, and reciprocating linear movement is done with sliding platform, the slave computer, detection port connects the Hall sensor, from institute
It states and manhole cover damage is provided in the signal of Hall sensor offer or loses information, the host computer utilizes host computer with display portion
Communication interface connect with the slave computer serial ports, the geography of manhole cover damage that slave computer is provided or loss situation together with well lid
Location information is shown by display portion.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：The mounting bracket be end to
On curve 90 degree " cross " shape structure, respectively there are a mounting holes in the vertical direction for four ends, for propping up the installation
Frame is parallel to well lid and is fixed on the borehole wall.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：The rotatable platform is strip
Structure, is arranged two closed slides and a gear, rackwork, the equal length of the guide rail and the rack, and with described turn
The length of moving platform is consistent, and the rack is fixed along the center line of rotatable platform upper surface length direction, and two guide rails are symmetrical
The rack both sides are distributed in, and are respectively positioned on the upper surface of rotatable platform.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：Two sliding block is placed in the cunning
The lower section of moving platform is individually fixed in the both sides of sliding platform, and a direct current generator is arranged, and the machine shaft passes through the gear
With the cooperation of the rack, the sliding block is driven to be slided along the guide rail.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：The guide rail both ends are equipped with limit
Block and close switch, are used for the moving range of limit slippage platform.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：The permanent magnet and it is described suddenly
You shift to the other end by sensor with the sliding platform from one end of the rotatable platform, and the rear stepper motor drives institute in place
State rotatable platform turn an angle (such as 20 degree) stop afterwards, direct current generator restarting at this time drives the sliding flat
Platform moves backward, and in cycles, the permanent magnet and the Hall sensor is made to carry out apodization scanning to well lid.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：The permanent magnet is U-shaped knot
Structure, the alignment of two magnetic grades are tested well lid, and the Hall sensor is placed between two magnetic poles, for detecting magnetic field, when well lid is broken
When damage or loss, it will influence the distribution in magnetic field produced by magnet, and Hall sensor passes through the variation for detecting magnetic field, captures well lid
Condition information.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：The slave computer is a microcontroller,
When damaged or loss occurs in well lid, slave computer is according to changes of magnetic field, it is determined whether sends alarm signal to host computer and passes through peace
Alarm in the mounting bracket warns passerby.
A kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：Multiple detections of the slave computer
Port can be connect with the detection part below multiple well lids simultaneously, realize the network monitoring to many well lid situations.
Compared with the prior art, the device have the advantages that being embodied in：
(1) is by being measured in real time the magnetic field below well lid, determining manhole cover damage or losing information.
(2) it be non-destructive testing technology, can to well lid carry out early stage flaw detection.
(3) Hall sensor used in has the characteristics that maintenance, strong environmental adaptability less.
(4) the technologies can carry out network monitoring to the situation of many well lids, there is very strong application value.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright schematic implementation and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 well lid condition monitoring device schematic diagrames
Fig. 2 detection part schematic diagrames
Fig. 3 mounting brackets
Fig. 4 permanent magnets and sensor running orbit schematic diagram
Fig. 5 host computers show picture
In Fig. 1：1- detection parts, 2- slave computers, 3- host computers and display portion.
In Fig. 2：The 4- boreholes wall, 5- stepper motors, 6- mounting brackets, 7- rotatable platforms, 8- sliding platforms, 9- permanent magnets with
Hall sensor, 10- are tested well lid.
In Fig. 3：11- mounting holes, 12- blind holes.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.Described herein specific examples are only used to explain the present invention, is not used to limit
Invention.
A kind of well lid condition real-time monitoring device based on magnetic sensing technology, as shown in Figure 1, it include detection part 1, under
Position machine 2, host computer and display portion 3.
Detection part is shown in shown in Fig. 2, it is located at the lower section of tested well lid 10, by mounting bracket 6, stepper motor 5, rotation
Platform 7, sliding platform 8, permanent magnet and Hall sensor 9 form.
Mounting bracket 6, which is that aluminium alloy plate is stamped, is made " cross " shape structure, and there is a through-hole at center, near four ends
Respectively there is a mounting hole 11, the four end bendings of " cross " structure as shown in Figure 3, using the cooperation of bolt and mounting hole 11, will be pacified
Dress holder 6 is parallel to well lid 10 and is fixed on the borehole wall.
Symmetric position bores four blind holes 12, profit on cross axis of the lower section of mounting bracket 6 close to central through hole position
With the cooperation of bolt and blind hole 12, stepper motor 5 is fixed on mounting bracket, motor driving shaft passes from below through mounting bracket 6
Central through hole, and connect with the rotatable platform 7 of the top of mounting bracket 6.Rotatable platform 7 is parallel with the face where mounting bracket 6,
But the two not in contact with.
Rotatable platform 7 is a strip aluminium alloy plate, and two closed slides and a rack, the length phase of guide rail and rack is arranged
Deng, and it is consistent with the length of rotatable platform long side.Rack and guide rail are fixed on 7 upper table of rotatable platform with bolt along long side direction
Face, rack are fixed along center line, and two guide rails are symmetrically distributed in rack both sides.
Two sliding blocks with guide rail cooperation are set, and the two is located at 8 lower section of sliding platform, and is distributed in 8 both sides of sliding platform.
One direct current generator is set, the side of sliding platform 8 is installed on, machine shaft is acted on by wheel and rack, drives sliding block
It is slided along guide rail.Guide rail both ends are used for the moving range of limit slippage platform 8 equipped with limited block and close to switch.
There is bolt hole in 8 top of sliding platform, is used for fixed permanent magnet, Hall sensor and alarm.Permanent magnet is U
Shape structure, for generating magnetic field.Magnet two-stage alignment top tested well lid 10, Hall sensor between two magnetic poles,
For detecting magnetic field.Hall sensor and power supply are connected with conducting wire, the output signal of Hall sensor is acquired through data
After be supplied to slave computer 2, handled by it.
When system operation, the rotation of stepper motor 5 will drive rotatable platform 7 together with the sliding platform 8 of top, alarm, forever
Long magnet and Hall sensor 9 rotate together, and rotate certain angle (such as 20 degree) and stop afterwards, and direct current generator starts at this time, by
It drives, and Hall sensor above rotatable platform 7 shifts to the other end along guide rail with sliding platform from one end.Two motors interlock,
In discontinuous operation state, in cycles.It is driven by two motors, the magnetic field that permanent magnet generates carries out apodization to well lid and sweeps
It retouches, as shown in Figure 4, while the magnetic field that Hall sensor couples well lid synchronizes detection.When well lid occurs damaged or loses
When, Hall sensor detects the variation in magnetic field, provides information to slave computer 2.Slave computer 2 is according to changes of magnetic field, determination
It is no to send alarm signal to host computer 3 and passerby is warned by alarm.
Slave computer 2 is a microcontroller, it is located at independently of detection part near tested well lid.The microcontroller of certain model
(such as：STM32 types microcontroller), the built-in A/D converter in port becomes detection port, and the output of Hall sensor is direct
It is attached thereto.For not built-in A/D converter microcontroller (such as：STC89C52 etc.), port connect an A/D conversion after at
To detect port, then it connect with the output end of Hall sensor.
Same microcontroller can have multiple input mouth simultaneously, it is connect with the detection part below multiple well lids respectively, can
Realize the network monitoring to many well lid situations.
Host computer is located at display portion 3 in municipal administration computer room, utilizes its PORT COM and local all bottoms
The serial ports of machine carries out communication connection.To improve the transmission range of signal, when slave computer is connect with host computer, respective interface difference
Access FT232 modules.
Display portion is used to show the manhole cover damage or lose information that slave computer 2 provides, and shows the geographical location of well lid
(as shown in Figure 5).
It these are only the embodiment of the present invention, be not intended to limit the present invention in any form；All industry
Those of ordinary skill can the shown and above swimmingly implementation present invention of by specification attached drawing；But all skills for being familiar with this profession
Art personnel without departing from the scope of the present invention, a little change are made using disclosed above technology contents, is repaiied
Decorations and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals according to the present invention are to above real
The variation, modification and evolution etc. for applying any equivalent variations made by example, still fall within the protection domain of technical scheme of the present invention
It is interior.
Claims (9)
1. a kind of well lid condition monitoring device based on magnetic sensing technology, it is characterised in that：Described device is by detection part, bottom
Machine, host computer and display portion form, and the detection part is integrally placed at below tested well lid, by mounting bracket, stepper motor,
Rotatable platform, sliding platform, alarm, permanent magnet and Hall sensor composition, the stepper motor are installed on the installation
The lower section of holder, shaft are connect with the rotatable platform being placed in above the mounting bracket, and the sliding platform is by cunning
Block is connect with rotatable platform, is placed in the top of rotatable platform, and the permanent magnet is placed in Hall sensor on sliding platform
Side, and do reciprocating linear movement with sliding platform, the slave computer, detection port connects the Hall sensor, from described
Manhole cover damage is obtained in the signal that Hall sensor provides or loses information, and the host computer utilizes host computer with display portion
Communication interface is connect with the slave computer serial ports, the geographical position of manhole cover damage that slave computer is provided or loss situation together with well lid
Confidence breath is shown by display portion.
2. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Mounting bracket is that end curves 90 degree " cross " shape structure upwards, four ends in the vertical direction respectively there are a mounting hole,
It is fixed on the borehole wall for the mounting bracket to be parallel to well lid.
3. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Rotatable platform is strip structure, and two closed slides and a gear, rackwork, the length of the guide rail and the rack is arranged
It is equal and consistent with the length of the rotatable platform, center line of the rack along rotatable platform upper surface length direction
Fixed, two guide rails are symmetrically distributed in the rack both sides, and are respectively positioned on the upper surface of rotatable platform.
4. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Two sliding blocks are placed in the lower section of the sliding platform, are individually fixed in the both sides of sliding platform, and a direct current generator, the motor is arranged
Shaft drives the sliding block to be slided along the guide rail by the cooperation of the gear and the rack.
5. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Guide rail both ends are used for the moving range of limit slippage platform equipped with limited block and close to switch.
6. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Permanent magnet and the Hall sensor shift to the other end with the sliding platform from one end of the rotatable platform, in place rear institute
State stepper motor drive the rotatable platform turn an angle (such as 20 degree) stop afterwards, the direct current generator opens again at this time
It is dynamic, it drives the sliding platform to move backward, in cycles, the permanent magnet and the Hall sensor is made to carry out well lid
Apodization scans.
7. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Permanent magnet is U-shaped structure, and the alignment of two magnetic grades is tested well lid, and the Hall sensor is placed between two magnetic poles, is used for detection magnetic
, when damaged or loss occurs in well lid, the Hall sensor detects that magnetic field changes.
8. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Slave computer is a microcontroller, and when damaged or loss occurs in well lid, slave computer is according to changes of magnetic field, it is determined whether is sent to host computer
Alarm signal simultaneously warns passerby by the alarm in the mounting bracket.
9. a kind of well lid condition monitoring device based on magnetic sensing technology according to claim 1, it is characterised in that：It is described
Multiple detection ports of slave computer can be connect with the detection part below multiple well lids simultaneously, realize the net to many well lid situations
Networkization monitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159368.0A CN108363107A (en) | 2018-02-26 | 2018-02-26 | A kind of well lid condition monitoring device based on magnetic sensing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159368.0A CN108363107A (en) | 2018-02-26 | 2018-02-26 | A kind of well lid condition monitoring device based on magnetic sensing technology |
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| CN108363107A true CN108363107A (en) | 2018-08-03 |
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| CN201810159368.0A Pending CN108363107A (en) | 2018-02-26 | 2018-02-26 | A kind of well lid condition monitoring device based on magnetic sensing technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986750A (en) * | 2019-12-04 | 2020-04-10 | 国网安徽省电力有限公司淮南供电公司 | Well lid in-place monitoring system and method based on nonlinear magnetic sensor |
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Cited By (2)
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Application publication date: 20180803 |
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