CN108593049A - A kind of railway tunnel inner orbit water detection and warning device - Google Patents
A kind of railway tunnel inner orbit water detection and warning device Download PDFInfo
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- CN108593049A CN108593049A CN201810363754.1A CN201810363754A CN108593049A CN 108593049 A CN108593049 A CN 108593049A CN 201810363754 A CN201810363754 A CN 201810363754A CN 108593049 A CN108593049 A CN 108593049A
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- ponding
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 241001669679 Eleotris Species 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a kind of railway tunnel inner orbit water detection and warning devices,Including water level detector,Semaphore,LED display,It is laid with water level detector on ballast bed of track in railway tunnel,Semaphore and LED display are mounted on railway tunnel hole top,And semaphore and the adjacent installation of LED display,Water level detector monitors the track ponding situation in railway tunnel in real time,As long as arbitrary five on railway tunnel inner orbit and its above water level detector are detected simultaneously by the ponding of corresponding position when being more than to a certain degree,Water level detector is i.e. to the semaphore mounted on hole top,Semaphore control LED display shows the ponding situation in the tunnel,The tunnel of track ponding is discovered convenient for railway servant,Railway dispatching center and corresponding Railway Bureau track division are sent that information to simultaneously,The advance of train is controlled by railway dispatching center,Railway servant is sent to go to draining with Railway Bureau's track division is corresponded to.
Description
Technical field
The present invention relates to track water detection and warning device more particularly to a kind of railway tunnel inner orbit water detection with
Warning device.
Background technology
Railway is national important traffic infrastructure and resource-type and environmentally friendly one of means of transportation,
The important connection tie of the national economic development, the development of high ferro especially in recent years, it shorten city with it is intercity away from
From having driven the development of periphery industry so that the people has more better choices in used during taking train.And railway security
A focus for becoming everybody concern, due to the construction and tunnel Nei Shui in tunnel are not easy to be discharged and air-dry,
Lead to the easy ponding of tunnel context, traffic safety can be seriously affected when ponding reaches a certain level, or even cause traffic accidents.
Such as：From the beginning of this year, after especially into flood season, continuously there are heavy showers weather, individual tunnel exposures in elder brother's high ferro Guizhou, Shanghai section
A lot of influence traffic safeties occur for the hidden danger of quality such as cracking, leak, interfere transport order, influence conevying efficiency and benefit
Quality problems.If in the case of not knowing tunnel inner orbit ponding in advance, when train is driven on the long-pending track for having water, easily leading to row
Traffic accident occurs for vehicle.
In the prior art, two schemes are mainly taken to be detected track ponding, i.e.,：1, railway is entered by railway servant
Tunnel is patrolled, there is spend human and material resources it is more, find not in time the defects of and deficiency；2. utilizing the track electricity on track
Road is detected track ponding, and when ponding reaches a certain level on track, track circuit will be short-circuited, and this method is missed
Inspection rate is high, and does not know the position of ponding, especially tunnel internal water accumulation when, be not easy to be found by railway servant.
Invention content
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of railway tunnel inner orbit water detections and alarm
Device monitors the track ponding in railway tunnel in real time by being laid with water level detector on the ballast bed of track in railway tunnel
Situation, when ponding is more than to a certain degree, water level detector is aobvious to the semaphore control LED display mounted on hole top
Show the ponding situation in the tunnel, while the information is sent to railway dispatching center and corresponding railway by wireless base station apparatus
Office's track division is controlled the advance of train by railway dispatching center, and corresponding Railway Bureau track division sends railway servant to go to draining.
The present invention can monitor the ponding situation of railway tunnel inner orbit in real time, and can automatically be sent to the geographical location information at this
Railway dispatching center and corresponding Railway Bureau's track division, effectively use manpower and material resources sparingly, false drop rate it is low.
To achieve the above object, a kind of railway tunnel inner orbit water detection provided by the invention and warning device are in this way
It realizes：
A kind of railway tunnel inner orbit water detection and warning device, are characterized in：Including water level detector, semaphore, LED
Display screen on the track in railway tunnel, installs water level detector, and water level detector pastes on the railway roadbed between adjacent sleeper
Two water level detectors are installed, semaphore and LED display are mounted on railway on the railway roadbed between nearly rail, each adjacent sleeper
At the top of tunnel portal, and semaphore and the adjacent installation of LED display, water level detector monitor the track in railway tunnel in real time
Ponding situation, when ponding is more than to a certain degree, water level detector is to send track product to the semaphore mounted on hole top
Water information, semaphore control LED display show the ponding situation in the tunnel, the tunnel of track ponding are discovered convenient for railway servant
Road, while railway dispatching center and corresponding Railway Bureau track division are sent that information to, train is controlled by railway dispatching center
Advance, and corresponding Railway Bureau track division sends railway servant to go to draining.
The water level detector of the present invention is by the first metallic aluminium box, waterproof plastic box, ZigBee terminal nodes, control circuit
Plate, water level sensor composition, can effectively be monitored the ponding situation of entire track in tunnel, along the first metallic aluminium box
Identical shutter is outputed on the vertical direction in four faces in front, rear, left and right, enters the first metallic aluminium convenient for the ponding on track
Box, waterproof plastic box and water level sensor are mounted on inside the first metallic aluminium box, ZigBee terminal nodes, control circuit board installation
Inside waterproof plastic box, waterproof plastic box is for preventing Water Damage ZigBee terminal nodes and control circuit board, level sensor
Device is used to detect the ponding information on track, and transmits this information to control circuit board, and ZigBee is controlled by control circuit board
Terminal node sends that information to semaphore.
The ZigBee terminal nodes of the present invention use technical grade ZigBee terminal nodes.
The water level sensor of the present invention uses industrial ultrasonic wave liquid level difference flowmeter sensor.
The semaphore of the present invention is by the second metallic aluminium box, power voltage step down module, gsm module, GPS module, controller, relay
Device, ZigBee routers composition, the information for converging each water level detector installed on the track in railway tunnel,
And the tunnel location information where the information and the water level detector is sent to by railway dispatching center and right by gsm module
Railway Bureau's track division is answered, is patrolled into each tunnel without railway servant, you can know the tunnel position where track ponding
It sets, effectively reduces manpower and materials；Power voltage step down module, gsm module, GPS module, controller, relay, ZigBee routings
Device is mounted in the second metallic aluminium box, and the voltage step-down used in railway equipment is 220V, 12V, 5V voltage stabilizing by power voltage step down module
Power supply, 220V regulated power supplies are powered for LED display, and 12V regulated power supplies are powered for ZigBee routers, and 5V regulated power supplies are
Gsm module, GPS module, controller power supply, GPS module are used to position the geographical location information of railway tunnel at this, and by the letter
Breath passes to controller, and ZigBee routers are used to receive the track ponding information that ZigBee terminal nodes are sent, and should
Information passes to controller, and gsm module is controlled by the track ponding information and the railway tunnel in the railway tunnel by controller
The geographical location information in road is sent to railway dispatching center and corresponding Railway Bureau track division, meanwhile, controller controls relay work
Make, indirect control LED display shows the ponding situation information in the tunnel.
The control circuit board of the present invention is equipped with temperature-compensation circuit, amplifying circuit, filter circuit, A/D conversion circuits, list
Piece machine minimum system circuit, temperature-compensation circuit are used to carry out temperature-compensating to water level sensor, improve the inspection of water level sensor
Survey rate, amplifying circuit use differential amplifier circuit, the track ponding information amplification for detecting water level sensor, and should
Information is transferred to filter circuit, and filter circuit uses second-order filter circuit, for being filtered to the information that amplifying circuit transmits
Processing, and information is sent to A/D conversion circuits by treated, A/D conversion circuits are using ADC0804 chips as analog-to-digital conversion
The analog signal that filter circuit transmits is converted to digital signal, then gives the digital data transmission to microcontroller minimum system by chip
System circuit, singlechip minimum system circuit use STC89C51 as kernel, the number sent for handling A/D conversion circuits
Signal, and give the information conveyance to ZigBee terminal nodes.
Since the present invention is by the way that on the track in railway tunnel, water-level detecting is installed on the railway roadbed between adjacent sleeper
Device, and water level detector monitors iron in real time close to two water level detectors of installation on the railway roadbed between rail, each adjacent sleeper
Track ponding situation in the tunnel of road, and by the track ponding information detected pass to hole top semaphore control LED
Display screen shows the ponding situation in the tunnel, at the same by the information by wireless base station apparatus be sent to railway dispatching center and
The structure of corresponding Railway Bureau track division, it is following so as to obtain
Advantageous effect：
1. the present invention installs water level detector, and water on the track in railway tunnel on the railway roadbed between adjacent sleeper
Location probe can monitor railway tunnel in real time close to two water level detectors of installation on the railway roadbed between rail, each adjacent sleeper
Track ponding situation in road, effectively increases the verification and measurement ratio of track ponding.
2. the present invention shows the ponding situation in the tunnel by LED display, track ponding is discovered convenient for railway servant
Tunnel.
The present invention is believed the geographical location residing for the information of the railway tunnel inner orbit ponding and tunnel by semaphore
Breath is sent to railway dispatching center and corresponding Railway Bureau track division, reminds the advance of railway dispatching center control train, and corresponding
Railway Bureau's track division sends railway servant to go to draining, effectively use manpower and material resources sparingly, false drop rate it is low.
Description of the drawings
Fig. 1 is a kind of mounting structure schematic diagram of railway tunnel inner orbit water detection and warning device of the present invention；
Fig. 2 is a kind of water level detector detail drawing of installation of railway tunnel inner orbit water detection and warning device of the present invention；
Fig. 3 is the water level detector structure signal of a kind of railway tunnel inner orbit water detection of the present invention and warning device
Figure；
Fig. 4 is a kind of water level detector exterior view of railway tunnel inner orbit water detection and warning device of the present invention；
Fig. 5 is a kind of semaphore structural schematic diagram of railway tunnel inner orbit water detection and warning device of the present invention；
Fig. 6 is a kind of fundamental diagram of railway tunnel inner orbit water detection and warning device of the present invention.
Main element symbol description.
Specific implementation mode
With reference to embodiment and compares attached drawing invention is further described in detail.
It please refers to Fig.1 to 6, a kind of railway tunnel inner orbit water detection and report showing in first embodiment of the invention
Alarm device, including water level detector 1, semaphore 2, LED display 3.
As shown in Figure 1, the water level detector 1 is mounted on the track in railway tunnel, i.e.,：Between adjacent sleeper
Water level detector 1 is installed, and water level detector 1 is close to installing two on the railway roadbed between rail, each adjacent sleeper on railway roadbed
Water level detector 1, semaphore 2 and LED display 3 are mounted on railway tunnel hole top, and 3 phase of semaphore 2 and LED display
Neighbour's installation, water level detector 1 monitor the track ponding situation in railway tunnel in real time, as long as appointing on railway tunnel inner orbit
When the ponding that meaning five and its above water level detector 1 are detected simultaneously by corresponding position is more than to a certain degree, water level detector 1 is
Track ponding information is sent to the semaphore 2 mounted on hole top, semaphore 2 controls LED display 3 and shows in the tunnel
Ponding situation, the tunnel of track ponding is discovered convenient for railway servant, while sending that information to railway dispatching center and correspondence
Railway Bureau's track division is controlled the advance of train by railway dispatching center, and corresponding Railway Bureau track division sends railway servant to go to
Draining, when only there are five water level detectors 1 below to detect that the ponding of corresponding position is more than certain on railway tunnel inner orbit
When degree, water level detector 1 does not send track ponding information to semaphore 2.
As shown in figure 3, the water level detector 1 is by the first metallic aluminium box 4, waterproof plastic box 5, ZigBee terminal nodes
6, control circuit board 7, water level sensor 8 form, and can be effectively monitored to the ponding situation of entire track in tunnel, along the
Identical shutter is outputed on the vertical direction in four faces in front, rear, left and right of one metallic aluminium box 5, convenient for the ponding on track
Into the first metallic aluminium box 4, waterproof plastic box 5 and water level sensor 8 are mounted on inside the first metallic aluminium box 4, ZigBee terminals
Node 6, control circuit board 7 are mounted on inside waterproof plastic box 5, and waterproof plastic box 5 is for preventing water from entering in waterproof plastic box 5
Portion and damage ZigBee terminal nodes 6 and control circuit board 7, water level sensor 8 is used to detect ponding information on track, and will
The information is transferred to control circuit board 7, the threshold being had an impact to traffic safety when predetermined trajectory ponding in control circuit board 7
Value, then carries out processing analysis to the water level information that water level sensor 8 detects, is compared with predetermined threshold value, work as level sensor
When the water level value that device 8 detects is more than threshold value, control circuit board 7 controls ZigBee terminal nodes 6 and sends that information to signal
Machine 2.
The ZigBee terminal nodes 6 use technical grade ZigBee terminal nodes.
The water level sensor 8 uses industrial ultrasonic wave liquid level difference flowmeter sensor.
As shown in figure 5, the semaphore 2 is by the second metallic aluminium box 9, power voltage step down module 10, gsm module 11, GPS moulds
Block 12, controller 13, relay 14, ZigBee routers 15 form, for converge installed on the track in railway tunnel it is every
The information of one water level detector 1, and by gsm module 11 by the tunnel location where the information and the water level detector 1
Information is sent to railway dispatching center and corresponding Railway Bureau track division, patrols into each tunnel without railway servant, i.e.,
It may know that the tunnel location where track ponding, effectively reduce manpower and materials；Power voltage step down module 10, gsm module 11,
GPS module 12, controller 13, relay 14, ZigBee routers 15 are mounted in the second metallic aluminium box 9, power voltage step down module
10 by the voltage step-down used in railway equipment be 220V, 12V, 5V regulated power supply, 220V regulated power supplies be LED display 3 confession
Electricity, 12V regulated power supplies are powered for ZigBee routers 15, and 5V regulated power supplies are gsm module 11, GPS module 12, controller 13
Power supply, GPS module 12 are used to position the geographical location information of railway tunnel at this, and pass it to controller 13,
ZigBee routers 15 pass it to control for receiving the track ponding information that ZigBee terminal nodes 6 are sent
Device 13 processed controls gsm module 11 by the ground of track ponding information and the railway tunnel in the railway tunnel by controller 13
Reason location information is sent to railway dispatching center and corresponding Railway Bureau track division, meanwhile, controller 13 controls relay 14 and works,
Indirect control LED display 3 shows the ponding situation information in the tunnel.
Write-in in advance needs information to be shown in the LED display 3, i.e. " herein in tunnel ponding ".
Turn as shown in fig. 6, the control circuit board 7 is equipped with temperature-compensation circuit, amplifying circuit, filter circuit, A/D
Circuit, singlechip minimum system circuit are changed, temperature-compensation circuit is used to carry out temperature-compensating to water level sensor 8, improves water level
The verification and measurement ratio of sensor 8, amplifying circuit use differential amplifier circuit, the track ponding letter for detecting water level sensor 8
Breath amplification, and filter circuit is transmitted this information to, filter circuit uses second-order filter circuit, for what is transmitted to amplifying circuit
Information is filtered, and information is sent to A/D conversion circuits by treated, and A/D conversion circuits use ADC0804 chips
As modulus conversion chip, the analog signal that filter circuit transmits is converted into digital signal, then the digital data transmission is given
Singlechip minimum system circuit, singlechip minimum system circuit, as kernel, electricity are converted for handling A/D using STC89C51
The digital signal that road is sent, and give the information conveyance to ZigBee terminal nodes.
The working principle and working process of the present invention is as follows：
As shown in fig. 6, water level sensor 8 detects the ponding information on track, and transmit this information to control circuit board
7, temperature-compensating is carried out to water level sensor 8 by the temperature-compensation circuit in control circuit board 7, amplifying circuit is to water level sensor
The 8 track ponding information detected are amplified, and are transmitted this information to filter circuit and be filtered, by treated
Information is sent to A/D conversion circuits and the analog signal transmitted is converted to digital signal, then by the digital data transmission to monolithic
Machine minimum system circuit, the threshold value that traffic safety is had an impact when predetermined trajectory ponding in singlechip minimum system circuit,
Then processing analysis is carried out to the water level information that water level sensor 8 detects, is compared with predetermined threshold value, when water level sensor 8
When the water level value detected is more than threshold value, singlechip minimum system circuit control ZigBee terminal nodes 6 are sent that information to
ZigBee routers 15, ZigBee routers 15 pass it to controller 13, and GPS module 12 is also by the railway tunnel
Geographical location information sends controller 13 to, and gsm module 11 is controlled by the track ponding in the railway tunnel by controller 13
The geographical location information of information and the railway tunnel is sent to railway dispatching center and corresponding Railway Bureau track division, meanwhile, control
Device 13 controls relay 14 and works, and indirect control LED display 3 shows the ponding situation information in the tunnel.
Claims (3)
1. a kind of railway tunnel inner orbit water detection and warning device, it is characterized in that：Including water level detector, semaphore, LED
Display screen on the track in railway tunnel, installs water level detector, and water level detector pastes on the railway roadbed between adjacent sleeper
Two water level detectors are installed, semaphore and LED display are mounted on railway on the railway roadbed between nearly rail, each adjacent sleeper
At the top of tunnel portal, and semaphore and the adjacent installation of LED display, water level detector monitor the product of the track in railway tunnel in real time
Regimen condition, when ponding is more than to a certain degree, water level detector is to send track ponding to the semaphore mounted on hole top
Information, semaphore control LED display show the ponding situation in the tunnel, the tunnel of track ponding are discovered convenient for railway servant
Road, while railway dispatching center and corresponding Railway Bureau track division are sent that information to, train is controlled by railway dispatching center
Advance, and corresponding Railway Bureau track division sends railway servant to go to draining.
2. a kind of railway tunnel inner orbit water detection according to claim 1 and warning device, it is characterised in that：It is described
Water level detector is made of the first metallic aluminium box, waterproof plastic box, ZigBee terminal nodes, control circuit board, water level sensor,
Effectively the ponding situation of entire track in tunnel can be monitored, along the face of the front, rear, left and right of the first metallic aluminium box four
Vertical direction on output identical shutter, enter the first metallic aluminium box, waterproof plastic box and water convenient for the ponding on track
Level sensor is mounted on inside the first metallic aluminium box, and ZigBee terminal nodes, control circuit board are mounted on inside waterproof plastic box,
Waterproof plastic box is for preventing Water Damage ZigBee terminal nodes and control circuit board, and water level sensor is for detecting on track
Ponding information, and control circuit board is transmitted this information to, the information is sent out by control circuit board control ZigBee terminal nodes
Give semaphore.
3. a kind of railway tunnel inner orbit water detection according to claim 1 and warning device, it is characterised in that：It is described
Semaphore is by the second metallic aluminium box, power voltage step down module, gsm module, GPS module, controller, relay, ZigBee routers
Composition, the information for converging each water level detector installed on the track in railway tunnel, and should by gsm module
Tunnel location information where information and the water level detector is sent to railway dispatching center and corresponding Railway Bureau track division, nothing
Railway servant is needed to patrol into each tunnel, you can to know the tunnel location where track ponding, effectively reduce people
Power material resources；Power voltage step down module, gsm module, GPS module, controller, relay, ZigBee routers are mounted on the second metal
In aluminium box, the voltage step-down used in railway equipment is 220V, 12V, 5V regulated power supply, 220V regulated power supplies by power voltage step down module
It powers for LED display, 12V regulated power supplies are powered for ZigBee routers, and 5V regulated power supplies are gsm module, GPS module, control
Device power supply processed, GPS module is used to position the geographical location information of railway tunnel at this, and passes it to controller,
ZigBee routers pass it to control for receiving the track ponding information that ZigBee terminal nodes are sent
Device is believed the geographical location of track ponding information and the railway tunnel in the railway tunnel by controller control gsm module
Breath is sent to railway dispatching center and corresponding Railway Bureau track division, meanwhile, controller controls relay work, indirect control LED
Display screen shows the ponding situation information in the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363754.1A CN108593049A (en) | 2018-04-22 | 2018-04-22 | A kind of railway tunnel inner orbit water detection and warning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363754.1A CN108593049A (en) | 2018-04-22 | 2018-04-22 | A kind of railway tunnel inner orbit water detection and warning device |
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| Publication Number | Publication Date |
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| CN108593049A true CN108593049A (en) | 2018-09-28 |
Family
ID=63613828
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|---|---|---|---|
| CN201810363754.1A Pending CN108593049A (en) | 2018-04-22 | 2018-04-22 | A kind of railway tunnel inner orbit water detection and warning device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398010A (en) * | 2018-12-11 | 2019-03-01 | 华东交通大学 | A kind of car assisted device for crossing highway |
| CN109459534A (en) * | 2018-11-30 | 2019-03-12 | 华东交通大学 | A kind of medical oxygen concentration monitor and alarm set |
| CN114463945A (en) * | 2021-12-30 | 2022-05-10 | 中国建筑第八工程局有限公司 | Tunnel construction emergency early warning system and use method thereof |
| CN115166832A (en) * | 2022-07-18 | 2022-10-11 | 西南交通大学 | Subway tunnel accumulated water detection and evaluation method based on dynamic analysis of steel rail backflow |
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| CN205138598U (en) * | 2015-11-06 | 2016-04-06 | 江苏晟翔云数据信息技术有限公司 | Public road ponding intelligent monitoring system in city |
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| CN208125231U (en) * | 2018-04-22 | 2018-11-20 | 华东交通大学 | A kind of railway tunnel inner orbit water detection and warning device |
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| KR101117307B1 (en) * | 2010-11-03 | 2012-02-27 | (주)티엘씨테크놀로지 | Railroad tunnel safety systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109459534A (en) * | 2018-11-30 | 2019-03-12 | 华东交通大学 | A kind of medical oxygen concentration monitor and alarm set |
| CN109398010A (en) * | 2018-12-11 | 2019-03-01 | 华东交通大学 | A kind of car assisted device for crossing highway |
| CN114463945A (en) * | 2021-12-30 | 2022-05-10 | 中国建筑第八工程局有限公司 | Tunnel construction emergency early warning system and use method thereof |
| CN115166832A (en) * | 2022-07-18 | 2022-10-11 | 西南交通大学 | Subway tunnel accumulated water detection and evaluation method based on dynamic analysis of steel rail backflow |
| CN115166832B (en) * | 2022-07-18 | 2023-09-12 | 西南交通大学 | Subway tunnel ponding detection evaluation method based on rail backflow dynamic analysis |
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