CN207867274U - Round-the-clock Tunnel collapses early warning system - Google Patents
Round-the-clock Tunnel collapses early warning system Download PDFInfo
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- CN207867274U CN207867274U CN201721287637.9U CN201721287637U CN207867274U CN 207867274 U CN207867274 U CN 207867274U CN 201721287637 U CN201721287637 U CN 201721287637U CN 207867274 U CN207867274 U CN 207867274U
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Abstract
The utility model is that a kind of round-the-clock Tunnel collapses early warning system,It includes mainly ups power,Electronic control unit,Central control unit,Audible-visual annunciator switch control module,Audible-visual annunciator,Intelligent terminal,Four posture adjustable laser monitoring modulars etc.,Wherein posture adjustable laser monitoring modular is by laser range sensor,The holder of two-freedom,Microcontroller and bluetooth module composition,It is connected by conducting wire between each module and module,3 buttons are housed in electronic control unit,It is power knob respectively,Reset button and operation button,Power knob is used to control the power supply of whole system,Press power knob,Whole system powers on,Press reset button,Four posture adjustable laser monitoring modulars are operated under reset mode,Press operation button,Four posture adjustable laser monitoring modulars are under normal mode of operation,The system monitor Tunnel sink deformation it is larger collapse accident when,Warning information is sent out by audible-visual annunciator.
Description
Technical field
The utility model patent is related to a kind of round-the-clock Tunnel and collapses early warning system, belongs to safety for tunnel engineering
Field.
Background technology
With the rapid development of China's economic society, the investment of the infrastructure constructions such as highway, railway is increasing,
Tunnel is the important component of highway and railway, and tunnel has many advantages, such as to improve road network trend and distribution, Economization on land,
Road reliability can greatly be shortened, reduce bend.
Tunnel is since narrow space, structure closing, sight are poor, with a varied topography, and difficulty of construction is big, and because geology
The reasons such as the shock wave that complicated condition, ess-strain be uneven, is generated in work progress are easy out during constructing tunnel
The case where existing tunnel cave.
With the progress of tunnel construction technology, after tunnelling comes out, can be reinforced and concrete biscuit fire with I-steel rapidly
It builds, and is then being reinforced again with concrete, safety greatly improves.But preliminary bracing（Tunnel segment before reinforcing again）
Wall stress caused by tunnel geology complicated condition, strain, always occur a certain amount of deformation, usually less than after excavation
The deformation of 5cm will not cause collapsing for Tunnel face wall body, but when deflection is more than 5cm, at the beginning of being easy to cause tunnel
Phase branch facing wall body rapidly collapses suddenly, causes tunnel " shutdown " phenomenon, will be trapped in the inside in the personnel of area surface construction.One
" shutdowns " accident occurs for denier, and construction personnel's life faces grave danger, the complicated difficulty of rescue work, easily cause it is catastrophic after
Fruit.Thus it is guaranteed that safety for tunnel engineering is most important.
Traditional Tunnel transformation safe monitoring relies primarily on the routine observation of site safety person, main detection tunnel
The deformation at road preliminary bracing wall top and waist, but security official is difficult to observe relatively in the environment of tunnel dark
Deformation smaller, not outstanding and change slow accumulated deformation, and security official can only separated in time monitoring it is primary, no
It can monitor in real time, people also greatly declines in the accuracy that fatigue monitors, to cause serious security risk.
Invention content
The utility model aim is to overcome the above-mentioned prior art insufficient, provides a kind of round-the-clock Tunnel and collapses
Early warning system, it is by mounted on the posture adjustable laser monitoring modular apart from Tunnel certain size, realizing tunnel
Preliminary bracing wall sinks the round-the-clock real-time monitoring of deformation, and supporting wall sinking in the early stage is when deforming more than a certain amount of,
Safe early warning information is sent out, operating personnel is prompted to withdraw at once.
The technical solution of the utility model is：It include mainly ups power（1）, electronic control unit（2）, central control unit
（3）, audible-visual annunciator switch control module（5）, audible-visual annunciator（6）, intelligent terminal（4）, four posture adjustable laser monitorings
Module（7、8、9、10）Deng.It is characterized in that：Four posture adjustable laser monitoring modulars（7、8、9、10）It is passed by 4 laser rangings
Sensor（20、25、30、35）, 4 two-degree-of-freedom cradle heads（16、21、26、31）, 4 laser monitoring module housings（17、22、27、
32）, 4 microcontrollers（19、24、29、34）With 4 bluetooth modules（18、23、28、33）Deng composition, electronic control unit（2）By opening
Powered-down source（14）, electronic control unit shell（15）, power knob（13）, reset button（12）, operation button（11）Deng composition；UPS
Power supply（1）And electronic control unit（2）Connection, electronic control unit（2）And central control unit（3）Connection, central control unit（3）With four
Platform posture adjustable laser monitoring modular（7、8、9、10）Connection, laser monitoring module（7、8、9、10）In laser range sensor
（20、25、30、35）It is separately fixed on 4 two-degree-of-freedom cradle heads by screw（16、21、26、31）, four laser monitoring moulds
Block（7、8、9、10）Respectively with audible-visual annunciator switch control module（5）Connection, audible-visual annunciator switch control module（5）With sound
Light crossing-signal（6）Connection.
The ups power（1）The exchange of output 220V supplies electricity to electronic control unit（2）, electronic control unit（2）Export the straight of 12V
Galvanic electricity gives four two-degree-of-freedom cradle heads（16、21、26、31）, central control unit（3）With audible-visual annunciator switch control module
（5）, central control unit（3）The direct current of 12V is supplied into four laser range sensors（20、25、30、35）And microcontroller
（19、24、29、34）.
The electronic control unit（2）It is upper that there are three button, power knobs（13）, which central control unit
（3）The break-make of power supply, when power switch is pressed, central control unit（3）Power supply is connected；Reset button（12）, when pressing this
After button, four laser monitoring modules（7、8、9、10）It powers on, and enters under reset mode simultaneously；Run button（11）, when by
After the lower button, four laser monitoring modules（7、8、9、10）Into under normal mode of operation.
The laser range sensor（20、25、30、35）With microcontroller（19、24、29、34）Connected by serial port
It connects, laser range sensor（20、25、30、35）The range data that measurement obtains is sent respectively to microcontroller（19、24、
29、34）.
The bluetooth module（18、23、28、33）Mounted on microcontroller（19、24、29、34）On, microcontroller（19、
24、29、34）Pass through bluetooth module（18、23、28、33）With intelligent terminal（4）Connection.
The intelligent terminal（4）It can be the equipment such as smart mobile phone, tablet computer with bluetooth, be matched by bluetooth
Pair can respectively with four posture adjustable laser monitoring modulars（7、8、9、10）Connection, communication, show laser range sensor（20、
25、30、35）The data measured, and laser monitoring module can be controlled by software interface（7、8、9、10）Operational mode.
The laser range sensor（20、25、30、35）, microcontroller（19、24、29、34）, work light etc.
All it is mounted on laser monitoring module housing（17、22、27、32）It is interior, laser monitoring module housing（17、22、27、32）Pass through bolt
Nut is mounted on two-degree-of-freedom cradle head（16、21、26、31）On.
Utility model works principle is：Four posture adjustable laser monitoring modulars（7、8、9、10）It is the core of this system
The heart, major function have monitoring distance variation, judge whether to reach triggering alert if, triggering audible-visual annunciator（6）Send out alarm
With pose adjustment etc., four laser monitoring modules（7、8、9、10）In program be the same and can be interchanged, every laser prison
Survey module（7、8、9、10）It can work independently.Four posture adjustable laser monitoring modulars（7、8、9、10）It is separately mounted to distance
The top of Tunnel metope 5cm and waist, wherein two, top, a top left side and top are referred to as according to its installation site
The right side, two waists in left and right install one respectively, and a waist left side, the waist right side are referred to as according to its installation site.Four posture adjustable lasers
Monitoring modular（7、8、9、10）After installing, pass through the holder of two-freedom（16、21、26、31）Adjust its laser sent out
Beam is parallel with Tunnel wall, and laser beam is beaten in face at this time（Work surface）On, when Tunnel wall
When a part of sinking deflection is more than 5cm, beat in face（Work surface）On the wall that will be sunk of laser beam block, swash
Ligh-ranging sensor（20、25、30、35）The data measured will become smaller, by microcontroller（19、24、29、34）Program
After judging the true false alarm that admits a fault, microcontroller（19、24、29、34）Pass through audible-visual annunciator switch control module（5）Opening sound
Light crossing-signal sends out sound-light alarm prompt operating personnel and quickly withdraws tunnel.
Laser monitoring module（7、8、9、10）Judge whether it is to need to carry out, Main Basiss be apart from itself 1 meter to join
It examines value and subtracts within the scope of 15 meters whether have shelter, if there is shelter within this range, illustrate that the deformation in preliminary bracing face is super
It crosses 5cm or has other shelters in this section of section, alarm will be triggered；Laser monitoring module（7、8、9、10）On have instruction
Lamp, the indicator light can remind user according to the different color of different display of regime, and when triggering is alarmed, the color of indicator light is
Red, system is under reset mode, and the color of indicator light is blue, and in the operating mode, the color of indicator light is green to system,
When the distance of measurement is 0 or measurement distance is less than 1 meter, and the color of indicator light is yellow, has prompted user's measuring instrument sheet
Body work is abnormal.
Central control unit（3）The working condition of four laser monitoring modules of control and working time.Working condition：It is divided into
Reset mode and normal mode of operation.When pressing electronic control unit（2）Reset button（12）When, central control unit（3）To four
Platform laser monitoring module（7、8、9、10）It powers on, and is that it is under reset mode, at this point, laser monitoring module（7、8、9、10）
In laser range sensor（20、25、30、35）Continuous measurement distance debugs four laser monitoring modules（7、8、9、10）
Posture after, four laser monitoring modules（7、8、9、10）Using the distance measured after stabilization as respective reference value, reference
Value is used for being compared with measured value when system worked well pattern, and as the important evidence for judging whether triggering early warning.
Press electronic control unit（2）Operation button（11）, system enters normal mode of operation, four laser monitoring modules
（7、8、9、10）Every 1 second to face（Working face）It measures once, if larger sinking occurs for intermediate preliminary bracing face,
The laser that laser monitoring module is sent out can be by midway when arriving, then the data that laser monitoring module measures will compared with reference value
Become smaller, then system sends out warning information after judging that identification is not false triggering.
In order to extend system service life, and program is avoided to generate excessive accumulated error, this system is provided with and recycles two-by-two
The strategy of discontinuous operation：After being first powered on operation, four laser monitoring modules（7、8、9、10）It first works at the same time 5 minutes, 5 minutes
Afterwards, the right two laser monitoring modules with the waist right side in top are closed（9、10）, the top right side and the waist right side two are automatically opened after 55 minutes per gap
Platform laser monitoring module（9、10）, four laser monitoring modules（7、8、9、10）It works at the same time 5 minutes, turns off after five minutes again
The left two laser monitoring modules with a waist left side in top（7、8）, only retain the right two laser monitoring modules with the waist right side in top（9、10）Work
Make, after 55 minutes, then opens the left two laser monitoring modules with a waist left side in top（7、8）, so move in circles operation, until system
It presses reset key or closes power supply.
Intelligent terminal is responsible for and bluetooth module（18、23、28、33）Communication, intelligent terminal send instructions to bluetooth module
（18、23、28、33）, bluetooth module（18、23、28、33）Instruction is transmitted to microcontroller（19、24、29、34）, microcontroller
（19、24、29、34）Laser monitoring module is controlled according to the instruction received（7、8、9、10）Normal mode of operation, work as reception
To command value be 49 when, laser monitoring module（7、8、9、10）It is operated under reset mode, and is to make by the value currently measured
For reference value, pass through bluetooth module（18、23、28、33）It is sent to intelligent terminal, shows on intelligent terminal software interface and surveys in real time
Magnitude；When the instruction received is 48, laser monitoring module（7、8、9、10）Work in the normal mode of operation, will reset mould
Measured value under the reference value and normal mode of operation that are obtained under formula passes through bluetooth module together（18、23、28、33）It is sent to intelligence
Energy terminal, intelligent terminal software show real-time measurement values and reference value on interface.
This system workflow is as follows：Power on first to system, presses electronic control unit（2）Reset button（12）,
Central control unit（3）It is initially located in reset mode with laser monitoring module (7,8,9,10), passes through two-degree-of-freedom cradle head respectively
（16、21、26、31）The posture for adjusting laser monitoring module, makes laser beam be incident on face（Working face）Above and apart from top surface
5cm obtains reference value, after adjustment, presses electronic control unit（2）Operation button（11）, system enters normal mode of operation,
Implementation monitoring is carried out to Tunnel facial disfigurement according to setting operational mode, when monitored preliminary bracing face is supervised at four
When the sinking of measuring point deforms more than 5cm, the audible-visual annunciator of system sends out alarm, and operating personnel is prompted to withdraw at once.
The utility model has the beneficial effects that：
1, the utility model can be monitored with the round-the-clock deformation to Tunnel, and it is more than set amount to have deformed,
Audible and visible alarm is sent out immediately, is prompted staff to withdraw, has been ensured the personal safety of staff.
2, the utility model is monitored four points of Tunnel, and monitoring point is reasonably distributed, early warning it is accurate
Property it is high.
3, the utility model adjusts the posture of laser monitoring module using two-degree-of-freedom cradle head remote control, and flexibility is good, safe
It is easy-to-use, it is simple to operate, intelligence degree is high.
4, intelligent terminal APP can check the currently monitored distance of every equipment by intelligent terminal APP, with convenient
Adjustment equipment light beam.And bluetooth module can be sent instructions to by intelligent terminal APP and adjusts every laser range sensor
Normal mode of operation.
Description of the drawings
Fig. 1 is the scheme of installation of the utility model；
Fig. 2 is the system composition of the utility model；
Fig. 3 is the electronic control unit system composition figure of the utility model；
Fig. 4 is the posture adjustable laser monitoring modular of the utility model（Top is left）System composition figure；
Fig. 5 is the posture adjustable laser monitoring modular of the utility model（Waist is left）System composition figure；
Fig. 6 is the posture adjustable laser monitoring modular of the utility model（Top is right）System composition figure；
Fig. 7 is the posture adjustable laser monitoring modular of the utility model（Waist is right）System composition figure；
Fig. 8 is the isometric use state diagram of the posture adjustable laser monitoring modular of the utility model；
Fig. 9 is the structural schematic diagram of the posture adjustable laser monitoring modular of the utility model；
Figure 10 is the isometric structural schematic diagram of the electronic control unit of the utility model；
Figure 11 is the isometric structural schematic diagram of the central control unit of the utility model；
In figure：1-UPS power supplys, 2- electronic control unit, 3- central control units, 4- intelligent terminals, 5- audible-visual annunciators switch
Control module, 6- audible-visual annunciators, 7,8,9, tetra- posture adjustable laser monitoring modulars of 10-, 11- operations button, 12- resets are pressed
Button, 13- power knobs, 14- Switching Power Supplies, 15- electronic control unit shell, 16,21,26,31- holders, 17,22,27,32- laser
Monitoring modular shell, 18,23,28,33- bluetooth modules, 19,24,29,34- microcontrollers, 20,25,30,35- laser rangings pass
Sensor.
Specific implementation mode
Embodiment 1：Such as Fig. 1-5, a kind of round-the-clock Tunnel collapses early warning system, including ups power 1, automatically controlled
4, four unit 2, central control unit 3, audible-visual annunciator switch control module 5, audible-visual annunciator 6, intelligent terminal postures can
Adjust laser monitoring module 7,8,9,10, four posture adjustable laser monitoring modulars 7,8,9,10 by 4 laser range sensors 20,
25、30、35）, 4 two-degree-of-freedom cradle head 16,21,26,31,4 laser monitoring module housings 17,22,27,32,4 microcontrollers
The compositions such as device 19,24,29,34 and 4 bluetooth modules 18,23,28,33, electronic control unit 2 is by Switching Power Supply 14, electronic control unit shell
The compositions such as body 15, power knob 13, reset button 12, operation button 11；Ups power 1 and electronic control unit 2 connect, electronic control unit 2
It is connected with central control unit 3, central control unit 3 is connect with four posture adjustable laser monitoring modulars 7,8,9,10, laser
Laser range sensor 20,25,30,35 in monitoring modular 7,8,9,10 is separately fixed at 4 two-freedom clouds by screw
16,21,26,31 on platform, four laser monitoring modules 7,8,9,10 are connect with audible-visual annunciator switch control module 5 respectively, sound
Light crossing-signal switch control module 5 is connect with audible-visual annunciator 6.
The exchange that the ups power 1 exports 220V supplies electricity to electronic control unit 2, and the direct current that electronic control unit 2 exports 12V supplies electricity to
Four two-degree-of-freedom cradle heads 16,21,26,31, central control unit 3 and audible-visual annunciator switch control module 5, center control are single
The direct current of 12V is supplied four laser range sensors 20,25,30,35 and microcontroller 19,24,29,34 by member 3.
3 power supply of central control unit in button there are three in the electronic control unit 2, power knob 13, the button control
Break-make, when power switch is pressed, 3 power supply of central control unit connect；Reset button 12, when pressed after, four
Laser monitoring module 7,8,9,10 powers on simultaneously, and enters under reset mode；Run button 11, when pressed after, four
Laser monitoring module 7,8,9,10 enters under normal mode of operation.
The laser range sensor is connect with microcontroller by serial port, and laser range sensor obtains measurement
Range data be sent to microcontroller.
On a microcontroller, microcontroller is connect by bluetooth module with intelligent terminal for the bluetooth module installation.
The intelligent terminal can be the equipment such as smart mobile phone, tablet computer with bluetooth, pass through Bluetooth pairing
It can connect, communicate with four posture adjustable laser monitoring modulars respectively, the data that measure of display laser range sensor, and can be with
The operational mode of laser monitoring module is controlled by software interface.
Described laser range sensor, microcontroller, work light etc. are all mounted in laser monitoring module housing,
Laser monitoring module housing is mounted on by bolt and nut on the holder of two-freedom.
Using being as follows：Four posture adjustable laser monitoring modulars 7,8,9,10 are separately mounted to tunnel initial-stage branch
The top of shield and waist（It is referred to as according to its installation site and pushes up left, the top right side, a waist left side, the waist right side）, apart from Tunnel wall
Face 5cm, by laser range sensor come monitor four monitoring points of Tunnel wall sink deformation whether be more than
5cm then shows that Tunnel may will collapse when wherein deforming more than 5cm there are one the sinking of monitoring point, and
Cause the accident of " closing the door ".
Before use, power on first to system, the reset button 12 of electronic control unit 2 is pressed, central control unit 3 and can
It adjusts laser monitoring module 7,8,9,10 to be initially located in reset mode, is adjusted respectively by the holder of two-freedom 16,21,26,31
The posture of laser monitoring module, makes laser beam be incident on face（Working face）Above and apart from top surface 5cm, a reference is obtained
Value, after adjustment, presses the operation button 11 of electronic control unit 2, and system enters normal mode of operation, according to setting operational mode
Implementation monitoring is carried out to Tunnel facial disfigurement, the sinking deformation four monitoring points is super when monitored preliminary bracing face
When crossing 5cm, the audible-visual annunciator of system sends out alarm, and operating personnel is prompted to withdraw at once.This early warning system is in tunnel initial-stage branch
After shield sinking deforms more than certain set amount, warning information is sent out by audible-visual annunciator, is prompted just in the personnel of operation horse back
It withdraws.This system is simple to operate, intelligence degree is high, it can be achieved that round-the-clock real-time Tunnel safety monitoring is pre-
It is alert.
Embodiment 2：Such as Fig. 1-5, a kind of round-the-clock Tunnel collapses early warning system, including ups power 1, automatically controlled
4, four unit 2, central control unit 3, audible-visual annunciator switch control module 5, audible-visual annunciator 6, intelligent terminal postures can
Adjust laser monitoring module 7,8,9,10 etc..Posture adjustable laser monitoring modular 7,8,9,10 by laser range sensor 20,25,
30,35, two-degree-of-freedom cradle head 16,21,26,31, laser monitoring module housing 17,22,27,32, microcontroller 19,24,29,34
With the compositions such as bluetooth module 18,23,28,33, electronic control unit 2 by Switching Power Supply 14, electronic control unit shell 15, power knob 13,
The compositions such as reset button 12, operation button 11；Ups power 1 and electronic control unit 2 connect, electronic control unit 2 and central control unit 3
Connection, central control unit 3 and four laser monitoring modules 7,8,9,10）It connects, swashing in laser monitoring module 7,8,9,10
Ligh-ranging sensor 20,25,30,35 is separately fixed at by screw 16,21,26,31 on 4 two-degree-of-freedom cradle heads, and four are swashed
Light detection module 7,8,9,10 is connect with audible-visual annunciator switch control module 5 respectively, audible-visual annunciator switch control module 5 with
Audible-visual annunciator 6 connects.
Using being as follows：Four posture adjustable laser monitoring modulars are separately mounted to the top of Tunnel
And waist（It is referred to as according to its installation site and pushes up left, the top right side, a waist left side, the waist right side）, apart from Tunnel metope 5cm, lead to
It crosses laser range sensor and sinks deformation whether more than 5cm, when wherein to monitor the wall of four monitoring points of Tunnel
When deforming more than 5cm there are one the sinking of monitoring point, then show that Tunnel may will collapse, and cause " to close the door "
Accident.
The specific embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the utility model is not
It is limited to the above embodiment, within the knowledge of a person skilled in the art, this practicality can also be not being departed from
Various changes can be made under the premise of novel objective.
Claims (6)
1. a kind of round-the-clock Tunnel collapses early warning system, it is characterised in that：Early warning system includes mainly ups power
（1）, electronic control unit（2）, central control unit（3）, audible-visual annunciator switch control module（5）, audible-visual annunciator（6）, intelligence
Terminal（4）With four posture adjustable laser monitoring modulars（7、8、9、10）, wherein four posture adjustable laser monitoring modulars（7、8、
9、10）Respectively by four laser range sensors（20、25、30、35）, four holders with two-freedom（16、21、26、
31）, four laser monitoring module housings（17、22、27、32）, four microcontrollers（19、24、29、34）With four bluetooth modules
（18、23、28、33）Composition and respectively autonomous working, four adjustable laser monitoring modulars（7、8、9、10）In four Laser Measurings
Away from sensor（20、25、30、35）It is separately fixed at four holders with two-freedom each by screw（16、21、26、
31）On, four laser monitoring modules（7、8、9、10）Respectively with audible-visual annunciator switch control module（5）Connection, sound-light alarm
Device switch control module（5）With audible-visual annunciator（6）Connection；Electronic control unit（2）By Switching Power Supply（14）, electronic control unit shell
（15）, power knob（13）, reset button（12）, operation button（11）Composition, ups power（1）With electronic control unit（2）Connection,
Electronic control unit（2）With central control unit（3）Connection, central control unit（3）With four posture adjustable laser monitoring modulars（7、
8、9、10）Connection, is connected between each module and module by conducting wire.
2. a kind of round-the-clock Tunnel according to claim 1 collapses early warning system, it is characterised in that：The cloud
Platform（16、21、26、31）Degree of freedom that there are two tools, and each holder（16、21、26、31）Posture can be adjusted by remote control, it is automatically controlled
3 buttons are housed on unit, are power knob, reset button and operation button respectively, power knob is for controlling whole system
Power supply, press power knob；Whole system powers on.
3. a kind of round-the-clock Tunnel according to claim 1 collapses early warning system, it is characterised in that：It is each to swash
Light detection module（7、8、9、10）Posture can adjust so that laser beam is parallel with monitored preliminary bracing face.
4. a kind of round-the-clock Tunnel according to claim 1 collapses early warning system, it is characterised in that：The system
There are two types of operating modes：Reset mode and normal mode of operation.
5. a kind of round-the-clock Tunnel according to claim 1 collapses early warning system, it is characterised in that：Left and right two
The laser monitoring module on side（7、8、9、10）Circular gap works two-by-two, to extend the service life of equipment, and program is avoided to produce
Raw excessive accumulated error.
6. a kind of round-the-clock Tunnel according to claim 1 collapses early warning system, it is characterised in that：The system
Both button control can be used（11、12）, intelligent terminal can also be used（4）Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287637.9U CN207867274U (en) | 2017-09-30 | 2017-09-30 | Round-the-clock Tunnel collapses early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287637.9U CN207867274U (en) | 2017-09-30 | 2017-09-30 | Round-the-clock Tunnel collapses early warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867274U true CN207867274U (en) | 2018-09-14 |
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ID=63475127
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721287637.9U Active CN207867274U (en) | 2017-09-30 | 2017-09-30 | Round-the-clock Tunnel collapses early warning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703801A (en) * | 2017-09-30 | 2018-02-16 | 云南云岭高速公路交通科技有限公司 | Round-the-clock Tunnel collapses early warning system and application method |
-
2017
- 2017-09-30 CN CN201721287637.9U patent/CN207867274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703801A (en) * | 2017-09-30 | 2018-02-16 | 云南云岭高速公路交通科技有限公司 | Round-the-clock Tunnel collapses early warning system and application method |
| CN107703801B (en) * | 2017-09-30 | 2024-04-16 | 云南云岭高速公路交通科技有限公司 | All-weather tunnel primary support collapse early warning system and use method thereof |
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