CN209087108U - Well lid monitoring device - Google Patents
Well lid monitoring device Download PDFInfo
- Publication number
- CN209087108U CN209087108U CN201821671507.XU CN201821671507U CN209087108U CN 209087108 U CN209087108 U CN 209087108U CN 201821671507 U CN201821671507 U CN 201821671507U CN 209087108 U CN209087108 U CN 209087108U
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- Prior art keywords
- well lid
- mounting bracket
- switch
- transmitter
- monitoring device
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Abstract
The utility model provides a kind of well lid monitoring device, including mounting bracket, lockset, sensory package, switch, power supply and terminal device；Mounting bracket is fixed on well head, for installing well lid；Lockset is set in mounting bracket, locking well cover is used for, and cooperate with switch, with control switch opening and closing；Switch is set in mounting bracket, with sensory package, power electric connection to form sensing circuit, and by the closure and opening of switch, can control the conducting and disconnection of sensing circuit；Sensory package is fixed on mounting bracket, and wirelessly communicates with terminal device；And locked by lockset when well lid, whether sensory package is damaged or relative to mounting bracket displacement, inclination for monitoring well lid；And sensory package monitor manhole cover damage or relative to mounting bracket displacement, inclination when, sensory package to terminal device emit alarm signal.The utility model is to be in damaged, displacement and heeling condition by service worker's opening or well lid for distinguishing well lid.
Description
[technical field]
The utility model relates to well lids to monitor field, in particular to well lid monitoring device.
[background technique]
Well lid is seen everywhere in city streets and lanes, and well lid does not cover when getting togather, and the vehicles or pedestrians nearby travelled may
It falls into well, therefore, it is necessary to notify well lid management unit in time when well lid is not covered and got togather, separately also needing correctly to distinguish is well
Whether lid is opened by worker, consequently facilitating well lid management unit manages well lid.
[utility model content]
Existing of the existing technology to overcome the problems, such as, the utility model provides a kind of well lid monitoring device.
The scheme that the utility model solves technical problem is to provide a kind of well lid monitoring device, including mounting bracket, lockset,
Sensory package, switch, power supply and terminal device；The mounting bracket is fixed on well head, for installing well lid；The lockset is set
It is placed in the mounting bracket, locking well cover is used for, and cooperate with the switch, to control the switch opening and closing；Institute
It states switch to be set in the mounting bracket, with sensory package, power electric connection to form sensing circuit, and passes through the switch
Closure and opening, can control the conducting and disconnection of the sensing circuit；The sensory package is fixed on the mounting bracket, and
It is wirelessly communicated with the terminal device；And when the well lid is locked by lockset, the sensory package is for monitoring whether well lid breaks
Damage is displaced, inclination relative to mounting bracket；And the sensory package monitors the manhole cover damage or relative to mounting bracket
When displacement, inclination, the sensory package emits alarm signal to the terminal device.
Preferably, the sensory package includes sensor and transmitter, and the sensor and the transmitter are electrically connected；Institute
It states when closing the switch, the sensor monitors the well lid information, and the sensory package monitors the manhole cover damage or phase
When for mounting bracket displacement, inclination, transmitter described in the sensor-triggered emits alarm signal.
Preferably, the sensor includes photosensitive sensor, and the transmitter includes first transmitter, the light sensor
When device monitors the manhole cover damage or is displaced, tilts relative to mounting bracket, the first transmitter transmitting first can trigger
Alarm signal.
Preferably, the sensor further includes range sensor, and the transmitter further includes second transmitter, the distance
When sensor monitors the well lid relative to mounting bracket displacement, inclination, it is alert to can trigger the second transmitter transmitting second
The number of notifying.
Preferably, the sensor further includes pressure sensor, and the transmitter further includes third transmitter, the distance
When sensor monitors the well lid relative to mounting bracket displacement, the third transmitter transmitting third alarm signal can trigger
Number.
Preferably, the lockset includes lockset main body, the first lock tongue and the second lock tongue, and the lockset main body is fixed on institute
Mounting bracket is stated, first lock tongue and second lock tongue can the relatively described lockset main body displacements；It is arranged on the well lid
There is locking piece；First lock tongue and the locking piece cooperate to lock or unlock well lid；Second lock tongue and the switch
Cooperation controls the conducting and disconnection of the sensing circuit.
Preferably, the switch includes elastic component, and second lock tongue is with the switch contact so that the switch closes
It closes, when second lock tongue is not with switch contact, the switch is opened under the elastic-restoring force effect of elastic component.
Preferably, the transmitter further includes coding unit so as to believe in the alarm signal that transmitter issues with well lid
Breath；The terminal device includes decoding unit, and decoding unit is for decoding the well lid information received.
Preferably, the terminal device includes receiving unit and display unit, and receiving unit and display unit are electrically connected；It connects
Unit is received for receiving the alarm signal that sensory package is emitted；Display unit is for showing alarm signal.
Preferably, the terminal device further includes recognition unit, and recognition unit is electrically connected with receiving unit, display unit,
First alarm signal, the second alarm signal and third alarm signal for identification, and generate alarm information signal be transmitted to it is aobvious
Show unit.
Compared with prior art, the utility model well lid monitoring device has the advantage that
1, it is by service worker's opening or stolen or breakage that well lid monitoring device, which can effectively distinguish well lid,.In worker to well
Lid carries out daily maintenance or in use, well lid is opened in unlock, and well lid monitoring device is not sent at well lid to the terminal device of distal end
In the alarm signal of abnormal condition；Well lid be not by service worker unlock open and well lid be in abnormal condition when, well
Lid monitoring device can send the alarm signal that well lid is in abnormal condition to the terminal device of distal end, and well lid management unit passes through
Terminal device can understand well lid in time and be in abnormal condition to eliminate safe hidden trouble so that worker be arranged to check and repair.
2, different alarm signals can be transmitted in well lid monitoring device, and terminal device can receive and identify that well lid monitoring device is sent out
Send different alarm signals, terminal unit management person can not go to check on the spot by different alarm signal combinations can be accurate
Know well lid is which kind of specific state among damaged, inclination or displacement state, in order to which well lid management unit arranges work
Make personnel to repair particular problem specific aim.
[Detailed description of the invention]
Fig. 1 a is the stereoscopic schematic diagram of the utility model well lid monitoring device mounting bracket.
Fig. 1 b is the utility model well lid monitoring device composition member position relation schematic diagram.
Fig. 1 c is the utility model well lid stereoscopic schematic diagram.
Fig. 2 is the utility model well lid monitoring device lockset stereoscopic schematic diagram.
Fig. 3 a is the utility model well lid monitoring device sensory package connection structure schematic block diagram.
Fig. 3 b is the utility model well lid monitoring device sensing circuit connection schematic diagram.
Fig. 4 is the utility model well lid monitoring device terminal device connection structure schematic block diagram.
Description of symbols: 100, well lid monitoring device；101, well lid；1011, locking piece；20, mounting bracket；30, it locks
Tool；301, lockset main body；302, the first lock tongue；303, the second lock tongue；40, it switchs；50, power supply；60, sensory package；601, it passes
Sensor；6011, photosensitive sensor；6012, range sensor；6013, pressure sensor；602, transmitter；6021, the first transmitting
Device；6022, second transmitter；6023, third transmitter；6024, coding unit；70, terminal device；701, receiving unit；
702, recognition unit；703, display unit；704, decoding unit.
[specific embodiment]
In order to make the purpose of this utility model, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to solve
The utility model is released, is not used to limit the utility model.
Please refer to Fig. 1 a- Fig. 1 c, a kind of well lid monitoring device 100, for monitoring well lid 101 comprising mounting bracket
20, lockset 30, switch 40, power supply 50, sensory package 60 and terminal device 70.Mounting bracket 20 is fixed on well head, for pacifying
Fill well lid 101；Lockset 30, switch 40, power supply 50 and sensory package 60 are both secured to mounting bracket 20；Switch 40 and power supply 50
And sensory package 60 is electrically connected to form sensing circuit；Lockset 30 is used to lock or unlock well lid 101 in mounting bracket 20,
And can simultaneously control switch 40 open or close, to control the disconnection or conducting of sensing circuit；When sensing circuit conducting, pass
Sense component 60 can monitor 101 situation of well lid, and when well lid 101 occurs abnormal, wirelessly communicate with terminal device 70, by well
101 information of lid is sent to terminal device 70.When sensing circuit disconnects, sensory package 60 is unable to monitor the information of well lid 101.
The lid of well lid 101 closes in mounting bracket 20, and well lid 101 is provided with locking piece 1011, lockset 30 by with locking piece
1011 cooperations, well lid 101 is locked in mounting bracket 20.Preferably, locking piece 1011 is lock ring.
Referring to Fig. 2, lockset 30 includes lockset main body 301, the first lock tongue 302 and the second lock tongue 303.Lockset main body
301 are fixed on mounting bracket 20, and the first lock tongue 302, the second lock tongue 303 are flexibly connected with lockset main body 301, can be relative to lockset
Main body 301 is displaced.
In locking well cover 101, the first lock tongue 302 cooperates with locking piece 1011, and well lid 101 is locked in mounting bracket 20
On, while 303 trigger switch 40 of the second lock tongue, keep the closure of switch 40 in the conductive state to control sensing circuit.
When unlocking well lid 101, the first lock tongue 302 does not cooperate with locking piece 1011, and well lid 101 can be remote under external force
From mounting bracket 20 to be lifted from mounting bracket 20, at the same the second lock tongue 303 will not trigger switch 40, switch 40 be in beat
It opens to control sensing circuit disconnection.
Lockset main body includes connector and elastic component, and the first lock tongue is connect by connector with elastic component with the second lock tongue,
It is driven in the first lock tongue and the second lock tongue and lockset main body and is stretched out by connector when elastic component discharges, elastic component passes through when shrinking
Connector drives the first lock tongue and the second bolt retraction in lockset main body, the release and contraction of remote control control elastic component.As
A kind of embodiment, elastic component are hard Tape spring, and the first lock tongue is fixed with the second lock tongue with by connector and Tape spring
Connection.As another embodiment, connector is link mechanism, and elastic component is spring, bindiny mechanism respectively with the first lock tongue,
Two lock tongues and spring are hinged.
When lockset unlocks, when 30 locking well cover 101 of lockset, the first lock tongue 302 stretches out in lockset main body 301, the first lock
Tongue 302 passes through lock ring, with the sealed cooperation of lock ring so that well lid 101 is locked in mounting bracket 20 to close well head, meanwhile, the second lock
Tongue 303 stretches out in lockset main body 301, contacts with switch 40, and pushing down switch 40 is closed switch 40, so that sensing circuit is in
On state, when sensing circuit conducting, sensory package 60 can monitor 101 situation of well lid；When lockset 30 unlocks well lid 101
When, the first lock tongue 302 is shunk in lockset main body 301, does not extend into lock ring, and well lid 101 can be opened with spacious far from mounting bracket 20
Drive a well mouth, and the second lock tongue 303 is shunk in lockset main body 301, does not contact with switch 40, and switch 40 is opened, and sensing circuit is in disconnected
Open state, when sensing circuit disconnects, sensory package 60 is unable to monitor the information of well lid 101.Preferably, switch 40 includes elasticity
Component, when the second lock tongue 303 is not contacted with switch 40, switch 40 is opened under the elastic-restoring force effect of elastic component.
It is appreciated that lockset 30 can be remote-controlled lock, induction lock, mechanical lock, electronic lock and other locks, lockset 30 and well lid
101, it is also possible to other locking fit structures between switch 40.As long as sensing circuit conducting, solution can be controlled in locking well cover
Control sensing circuit disconnects when locking well lid.
As one embodiment, well lid monitoring device 100 can not also include mounting bracket 20, lockset 30, switch 40, electricity
Source 50 and sensory package 60 may be mounted at well head.
Fig. 3 a, Fig. 3 b are please referred to, sensory package 60 includes sensor 601 and transmitter 602, sensor 601 and transmitter
602 electrical connections.When sensing circuit is in the conductive state, sensor 601 can incude setting feature, when monitor setting feature become
When changing, is abnormal, transmitter 602 is triggered.Transmitter 602 and terminal device 70 wirelessly communicate, and can emit after being triggered by sensor 601
Alarm signal is to terminal device 70.
Sensing circuit is in the conductive state, and sensor 601 can incude setting feature；Sensing circuit is in an off state, and is passed
Sensor 601 can not incude setting feature.Sensing circuit is in the conductive state, if normal condition at well lid 101, setting feature will not
It changes, sensor 601 senses that setting feature keeps stablizing, and sensor 601 will not trigger transmitter 602, transmitter 602
It will not signal an alert.If well lid 101 is in abnormal condition (including well lid 101 damages, tilts or have displacement), can make to set
Determine feature to change, sensor 601 will trigger transmitter 602 after sensing the variation for setting feature, and transmitter 602 is triggered
Alarm signal will be emitted afterwards to terminal device 70.
Specifically, sensor 601 includes photosensitive sensor 6011, range sensor 6012 and pressure sensor 6013,
It is appreciated that can be used alone can also be with it for photosensitive sensor 6011, range sensor 6012 and pressure sensor 6013
In be applied in combination for two or three, in the present embodiment, photosensitive sensor 6011, range sensor 6012 and pressure sensor
6013 3 kinds are applied in combination, and after the changing features of three kinds of sensor sensings to setting, triggering transmitter 602 sends alarm signal extremely
Terminal device 70.
Transmitter 602 includes first transmitter 6021, second transmitter 6022 and third transmitter 6023.First transmitting
Device 6021, second transmitter 6022 and third transmitter 6023 can emit the feature and being capable of identified first alarm of having any different
Signal, the second alarm signal and third alarm signal.Wherein first transmitter 6021 is electrically connected with photosensitive sensor 6011, is used
In emitting the first alarm signal；Second transmitter 6022 is electrically connected with range sensor 6012, for emitting the second alarm signal；
Third transmitter 6023 is electrically connected with pressure sensor 6013, for emitting third alarm signal.
The inductance characteristics that photosensitive sensor 6011 is set is intensities of illumination.In the case where sensing circuit is in the conductive state, if well
Normally lid closes in mounting bracket 20 lid 101, and intensity of illumination will not change under well lid, and photosensitive sensor 6011 senses light
According to intensity constant, first transmitter 6021 will not be triggered to terminal device 70 and emit the first alarm signal；If well lid 101 damages
Bad, inclination or displacement, light can enter well lid 101 by the gap between 101 breakage of well lid or well lid 101 and mounting bracket 20
Under, cause the intensity of illumination under well lid 101 to change, i.e., intensity of illumination changes from weak to strong under well lid 101, photosensitive sensor
After 6011 detect intensity of illumination variation, triggering first transmitter 6021 is emitted into the first alarm signal to terminal device 70.
The inductance characteristics that range sensor 6012 is set arrive the distance between mounting bracket as well lid.It is in sensing circuit
Under on state, if normally lid closes in mounting bracket 20 well lid 101, there is no distance between well lid 101 and mounting bracket 20
Variation, range sensor 6012 sense that constant distance is constant, will not trigger second transmitter 6022 and emit to terminal device 70
Second alarm signal；If 101 run-off the straight of well lid or displacement, the distance between well lid 101 and mounting bracket 20 can change,
After range sensor 6012 detects distance change, triggering second transmitter 6022 is emitted into the second alarm signal to terminal device 70
Number.
The inductance characteristics that pressure sensor 6013 is set act on the pressure of mounting bracket as well lid.It is in sensing circuit
Under on state, if the lid of well lid 101 closes in mounting bracket 20, pressure sensor 6013 can sense that well lid 101 acts on peace
The pressure on bracket 20 is filled, pressure sensor 6013 will not trigger third transmitter 6023 and emit third alarm to terminal device 70
Signal；If well lid 101 does not cover conjunction in mounting bracket 20 after being displaced, the induction of pressure sensor 6013 acts on installation less than well lid
Pressure on bracket, pressure is 0 at this time, and triggering third transmitter 6023 is emitted third alarm signal to terminal device 70.
In the present embodiment, transmitter 602 includes coding unit 6024, and coding unit 6024 is for sending out transmitter 602
101 information of well lid is had in alarm signal out, to identify well lid 101.That is, when sensory package 60 senses abnormal, in addition to
Emit outside alarm signal, also the information of launcher closure 101 is to terminal device 70 simultaneously, so as to can differentiate on terminal device 70
Provide the position of abnormal well lid 101.
It is appreciated that the information of well lid 101 is the position of well lid 101, it is set in coding unit 6024, each coding is single
The information of the corresponding well lid 101 of member 6024.
Referring to Fig. 4, terminal device 70 is used to receive the information of alarm signal and well lid 101 that transmitter 602 is emitted,
It identifies alarm signal type (including the first alarm signal, the second alarm signal and third alarm signal), shows alarm signal
Information is convenient for 101 management unit of well lid so that 70 administrator of terminal device be enable to distinguish well lid state according to alarm information signal
It sends staff's maintenance, reinstall well lid 101.
Terminal device 70 includes receiving unit 701, recognition unit 702, display unit 703 and decoding unit 704, is received
Unit 701, recognition unit 702, display unit 703 and decoding unit 704 are electrically connected.Receiving unit 701 is for receiving transmitting
The alarm signal that device 602 is emitted；The alarm information signal that recognition unit 702 receives for identification has received several polices
The number of notifying and be which alarm signal, and generate alarm information signal and be transmitted to display unit 703；Decoding unit 704 is for solving
101 information of well lid that code receives, and 101 serial number information of well lid is transmitted to display unit 703；Display unit 703 is for showing
Show alarm information signal.
Administrator can be gone wrong according to 101 serial number of well lid inquiry specifically which well lid 101 and its position, can root
Understand well lid is specifically which kind of abnormal condition be according to alarm signal classification, to targetedly arrange task.If receiving
First alarm signal and do not receive the second alarm signal, well lid 101 known to third alarm signal be occur it is damaged；If receiving first
Alarm signal, the second alarm signal and the not damaged but run-off the straight of well lid known to third alarm signal is not received；As received simultaneously
To the first alarm signal, the second alarm signal and third alarm signal, it is known that well lid 101 is subjected to displacement not cover to close and install
It may be lost on bracket 20, is stolen.
Compared with prior art, the utility model well lid monitoring device has the advantage that
1, it is to be in damaged, inclination or position by service worker's opening or well lid that well lid monitoring device, which can effectively distinguish well lid,
Shifting state.Daily maintenance is carried out to well lid in worker or in use, unlock lockset opens well lid, well lid monitoring device will not be to end
End equipment sends alarm signal；Well lid be not by service worker unlock lockset open and well lid be in abnormal condition when, well
Lid monitoring device can send alarm signal to terminal device, and well lid management unit can understand in time well lid by terminal device and be in
Abnormal condition eliminates safe hidden trouble so that worker be arranged to check and repair.
2, different alarm signals can be transmitted in well lid monitoring device, and terminal device can receive and identify that well lid monitoring device is sent out
Send different alarm signals, terminal unit management person can not go to check on the spot by different alarm signal combinations can be accurate
Know well lid is which kind of specific state among damaged, inclination or displacement state, in order to which well lid management unit arranges work
Make personnel to repair particular problem specific aim.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification within the principle of utility model, equivalent replacement and improvement etc. should all include the protection scope of the utility model
Within.
Claims (10)
1. a kind of well lid monitoring device, for monitoring the well lid of capping well head, it is characterised in that: the well lid monitoring device includes
Mounting bracket, lockset, sensory package, switch, power supply and terminal device；
The mounting bracket is fixed on well head, for installing well lid；
The lockset is set in the mounting bracket, locking well cover is used for, and cooperate with the switch, to control the switch
Opening and closing；
The switch is set in the mounting bracket, with sensory package, power electric connection to form sensing circuit, and passes through institute
The closure and opening for stating switch can control the conducting and disconnection of the sensing circuit；
The sensory package is fixed on the mounting bracket, and wirelessly communicates with the terminal device；And when the well lid is locked
Whether tool locking, the sensory package are damaged or relative to mounting bracket displacement, inclination for monitoring well lid；And the sensing group
When part monitors the manhole cover damage or is displaced, tilts relative to mounting bracket, the sensory package is sent out to the terminal device
Penetrate alarm signal.
2. a kind of well lid monitoring device as described in claim 1, it is characterised in that: the sensory package includes sensor and hair
Emitter, the sensor and transmitter electrical connection；
Described when closing the switch, the sensor monitors the well lid information, and the sensory package monitors that the well lid is broken
When damaging or be displaced relative to mounting bracket, tilting, transmitter described in the sensor-triggered emits alarm signal.
3. a kind of well lid monitoring device as claimed in claim 2, it is characterised in that: the sensor includes photosensitive sensor,
The transmitter includes first transmitter, and the photosensitive sensor monitors the manhole cover damage or relative to mounting bracket position
When moving, tilting, it can trigger the first transmitter and emit the first alarm signal.
4. a kind of well lid monitoring device as claimed in claim 3, it is characterised in that: the sensor further includes Distance-sensing
Device, the transmitter further include second transmitter, the range sensor monitor the well lid relative to mounting bracket displacement,
When inclination, it can trigger the second transmitter and emit the second alarm signal.
5. a kind of well lid monitoring device as claimed in claim 4, it is characterised in that: the sensor further includes pressure sensing
Device, the transmitter further include third transmitter, and the range sensor monitors that the well lid is displaced relative to mounting bracket
When, it can trigger the third transmitter transmitting third alarm signal.
6. a kind of well lid monitoring device as described in claim 1, it is characterised in that: the lockset includes lockset main body, first
Lock tongue and the second lock tongue, the lockset main body are fixed on the mounting bracket, and first lock tongue and second lock tongue are equal
It can the relatively described lockset main body displacement；
Locking piece is provided on the well lid；First lock tongue and the locking piece cooperate to lock or unlock well lid；
The locking and unlocking of first lock tongue and well lid trigger the second lock tongue and switch cooperation controls the sensing circuit
Conducting and disconnection.
7. a kind of well lid monitoring device as claimed in claim 6, it is characterised in that: the switch includes elastic component, described
Second lock tongue is with the switch contact so that described close the switch, and when second lock tongue is not with switch contact, the switch exists
The elastic-restoring force effect of elastic component is lower to open.
8. a kind of well lid monitoring device as claimed in claim 2, it is characterised in that: the transmitter further include coding unit with
With well lid information in the alarm signal for issuing transmitter；
The terminal device includes decoding unit, and decoding unit is for decoding the well lid information received.
9. a kind of well lid monitoring device a method as claimed in any one of claims 1-8, it is characterised in that: the terminal device includes connecing
Receive unit and display unit, receiving unit and display unit electrical connection；Receiving unit is for receiving the police that sensory package is emitted
The number of notifying；Display unit is for showing alarm signal.
10. a kind of well lid monitoring device as claimed in claim 9, it is characterised in that: the terminal device further includes that identification is single
Member, recognition unit are electrically connected with receiving unit, display unit, for identification alarm signal, and generate alarm information signal transmission
To display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821671507.XU CN209087108U (en) | 2018-10-15 | 2018-10-15 | Well lid monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821671507.XU CN209087108U (en) | 2018-10-15 | 2018-10-15 | Well lid monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087108U true CN209087108U (en) | 2019-07-09 |
Family
ID=67119347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821671507.XU Active CN209087108U (en) | 2018-10-15 | 2018-10-15 | Well lid monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209087108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867056A (en) * | 2019-12-13 | 2020-03-06 | 深圳市沃尔核材股份有限公司 | Remote monitoring system and method based on cable tube plugging device |
| CN112431228A (en) * | 2020-11-04 | 2021-03-02 | 苏州汇融信息工程有限公司 | Cable well lid intellectual detection system |
-
2018
- 2018-10-15 CN CN201821671507.XU patent/CN209087108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867056A (en) * | 2019-12-13 | 2020-03-06 | 深圳市沃尔核材股份有限公司 | Remote monitoring system and method based on cable tube plugging device |
| CN112431228A (en) * | 2020-11-04 | 2021-03-02 | 苏州汇融信息工程有限公司 | Cable well lid intellectual detection system |
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