CN109747661B - Multifunctional railway platform cap device - Google Patents
Multifunctional railway platform cap device Download PDFInfo
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- CN109747661B CN109747661B CN201910201884.XA CN201910201884A CN109747661B CN 109747661 B CN109747661 B CN 109747661B CN 201910201884 A CN201910201884 A CN 201910201884A CN 109747661 B CN109747661 B CN 109747661B
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- bearing plate
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- 238000009434 installation Methods 0.000 claims abstract description 59
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000013480 data collection Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Train Traffic Observation, Control, And Security (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a multifunctional railway platform cap device which comprises a control terminal, control sub-ends and bearing plates, wherein the control sub-ends are in communication connection with the control terminal, and the control sub-ends correspond to the bearing plates one by one; the bearing plate is installed on the surface of a platform, a displacement sensor and a voice prompt unit are installed on the vertical surface of the bearing plate, a safe yellow line area and a safe white line area are arranged on the horizontal surface of the bearing plate, a first installation concave cavity and a second installation concave cavity are formed in the surface of the bearing plate, a first electronic screen is installed at the bottom in the first installation concave cavity, a second electronic screen is installed at the bottom in the second installation concave cavity, and a white line out-of-range triggering unit is installed on the surface of the bearing plate. The beneficial effects are that: the second electronic screen can display carriage information of the current train, so that passengers can be conveniently queued for waiting; the automatic detection and warning of the crossing line and the automatic monitoring of the platform limit can be realized, and the safety of passengers is ensured.
Description
Technical Field
The invention relates to the technical field of platform caps, in particular to a multifunctional railway platform cap.
Background
The train is an important transportation means for people to travel, and in order to facilitate passengers waiting for the train, a carriage number signboard is arranged on the bottom end surface of the platform, so that passengers can conveniently queue for waiting; in order to ensure the safety of passengers when waiting for queuing, a safety yellow line and a safety white line are arranged on the bottom surface of the platform to remind the passengers and prevent the passengers from falling off the platform or scraping and bumping with an inbound train; in order to ensure the safety of the entering of the train, the measuring tool is required to measure the size of the platform limit, so that the safety accidents such as the stamping of passengers, scraping of the train body and even collision are prevented, namely, the safety protection device is arranged on the stone of the railway platform.
However, the carriage number identification plate on the existing platform rubble indicates the carriage numbers of different marshalling trains when the train stops at the platform through the ground number plates with different colors, so that confusion is easy to cause, passengers cannot accurately judge the carriage numbers of the current train in time, and the use effect is not ideal; at present, station staff is required to remind passengers, passengers are prevented from crossing a safety white line, the working difficulty of the staff is greatly increased, the observation range of the staff is provided with a blind area, each passenger cannot be observed in time, and potential safety hazards exist; most of the prior platform limit measuring devices are contact measuring tools, measurement needs to be carried out on a track, the measuring time is limited, the operation efficiency is low, and the situation that the platform limit state changes and potential safety hazards exist is not easy to discover in time.
Disclosure of Invention
The invention aims to solve the problems and provide a multifunctional railway platform cap device which is used for solving the problems that the prior art that the current carriage number identification plate indicates carriage numbers of different marshalling train stations through different colored ground number plates is easy to cause confusion, passengers cannot accurately judge the carriage numbers of the current train in time, and the use effect is not ideal; at present, station staff is required to remind passengers, passengers are prevented from crossing a safety white line, the working difficulty of the staff is greatly increased, the observation range of the staff is provided with a blind area, each passenger cannot be observed in time, and potential safety hazards exist; most of the prior platform limit measuring devices are contact measuring tools, measurement needs to be carried out on a track, the measuring time is limited, the operation efficiency is low, and the technical problems of platform limit state change, potential safety hazards and the like are not easy to find in time. According to the preferred technical scheme, the second electronic screen can display the carriage information of the current train, so that passengers can observe the carriage information conveniently, and queue up and wait can be carried out; the automatic detection and automatic reminding of passengers crossing the safety white line area are realized through the white line crossing triggering unit and the voice prompt unit, so that the labor capacity of staff is reduced, and the safety of passengers is ensured; the distance between the vehicle and the platform is measured by the displacement sensor, so that the automatic real-time measurement of the limit size of the platform is realized, the detection by workers is not needed, the cost is reduced, the safety of the platform and the train is ensured, and the like are explained in detail below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a multifunctional railway platform cap device which comprises a control terminal, a control sub-end and a bearing plate, wherein the control sub-end is in communication connection with the control terminal, and the control sub-end corresponds to the bearing plate one by one;
the bearing plate is arranged on the surface of the platform, corresponds to a carriage door of a stopped train, is in a horizontal L-shaped structure, is level with the surface of the platform, and is level with the vertical surface of the platform close to a rail; the vertical surface of the bearing plate is provided with a displacement sensor and a voice prompt unit, the displacement sensor and the voice prompt unit are electrically connected with the control sub-end, the horizontal surface of the bearing plate is provided with a safety yellow line area and a safety white line area, the safety white line area is adjacent to the safety yellow line area, and the safety white line area is close to a train track; the surface of the bearing plate is provided with a first installation concave cavity and a second installation concave cavity, the first installation concave cavity is positioned in the safety white line area, the second installation concave cavity is positioned at one side of the safety yellow line area, which is far away from the safety white line area, a first electronic screen for displaying a safety warning language is installed in the first installation concave cavity, a second electronic screen for displaying the current train carriage number information is installed in the second installation concave cavity, the first electronic screen and the second electronic screen are electrically connected with the control sub-end, and transparent protection plates are installed at the ports of the first installation concave cavity and the second installation concave cavity; the white line out-of-range triggering unit is arranged on the surface of the bearing plate and is positioned at one side of the safety white line area far away from the safety yellow line area, and the white line out-of-range triggering unit is electrically connected with the control sub-end;
the control sub-end comprises a control panel unit, a data acquisition unit and a communication unit, wherein the data acquisition unit is electrically connected with the control panel unit and is used for processing data of the displacement sensor, the communication unit is electrically connected with the control panel unit and is used for realizing communication between the control sub-end and the control terminal, and the white line out-of-range triggering unit, the voice prompt unit, the first electronic screen and the second electronic screen are electrically connected with the control panel unit.
By adopting the multifunctional railway platform cap device, when the device works, the arrangement and combination of the train carriage numbers are preset through the control terminal, the information is transmitted to the control board unit through the communication unit, the first electronic screen is controlled to work through the control board unit, the carriage number information of the current train is displayed through the first electronic screen, the pointing direction of the adjacent carriage is displayed, passengers can conveniently and rapidly find the position of the carriage number needing to be taken, and wait, so that greater convenience is brought to the passengers waiting for the train; the control panel unit controls the second electronic screen to work, warning slogans are displayed through the second electronic screen, passengers are reminded not to cross the safety white line area, when the passengers cross the safety white line area by mistake, the white line out-of-range triggering unit triggers and transmits signals to the control panel unit, and the control panel unit receives the signals and controls the voice prompt unit to carry out voice warning, so that the passengers are reminded to keep away, and personal safety of the passengers is guaranteed; after a train enters a station and stops stably, the distance between the train beside the stop platform and the edge of the platform is measured through the displacement sensor, collected data are processed through the data collection unit, the processed data are transmitted to the control terminal through the communication unit, real-time monitoring of the platform limit is facilitated, and the change of the state of the platform limit and the potential safety hazard existing in the state can be found in time.
Preferably, the first installation concave cavity and the second installation concave cavity are respectively provided with an installation sinking groove at the port, the transparent protection plate is installed in the installation sinking groove through bolts, and waterproof sealant is coated at the joint of the transparent protection plate and the installation sinking groove.
Preferably, the thickness dimension of the transparent protection plate is equal to the groove depth dimension of the installation sinking groove.
Preferably, a sealing groove is formed in the bottom of the installation sinking groove, the sealing groove is annularly distributed on the outer sides of the first installation concave cavity and the second installation concave cavity, a sealing ring is installed at the bottom end of the transparent protection plate, the sealing ring corresponds to the sealing groove, and the sealing ring is in clearance fit with the sealing groove.
Preferably, waterproof lamp strips are embedded in the surface of the bearing plate, the waterproof lamp strips are distributed around the safety white line area in an annular mode, and the waterproof lamp strips are electrically connected with the control panel unit.
Preferably, the surface of the bearing plate is provided with anti-skid patterns.
Preferably, the white line out-of-range triggering unit is a human body proximity sensor.
The beneficial effects are that: 1. the second electronic screen can display carriage information of the current train, so that passengers can observe the carriage information conveniently, and train waiting is performed;
the automatic detection and automatic reminding of passengers crossing the safety white line area are realized through the white line crossing triggering unit and the voice prompt unit, so that the labor capacity of staff is reduced, and the safety of passengers is ensured;
3. the distance between the vehicle and the platform is measured through the displacement sensor, so that the automatic real-time detection of the limit size of the platform is realized, the detection by workers is not needed, the cost is reduced, and the safety of the platform and the train is ensured.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a carrier plate according to the present invention;
FIG. 2 is a schematic view of the internal structure of a first mounting cavity of the present invention;
FIG. 3 is a schematic view of the internal structure of a second mounting cavity of the present invention;
fig. 4 is a system control block diagram of the present invention.
The reference numerals are explained as follows:
1. a carrying plate; 101. a first mounting cavity; 102. a second mounting cavity; 103. installing a sinking groove; 104. sealing the groove; 2. a voice prompt unit; 3. a displacement sensor; 4. a safe white line area; 5. a safety yellow line region; 6. white line out-of-range triggering unit; 7. a first electronic screen; 8. a waterproof light belt; 9. a transparent protection plate; 901. a seal ring; 10. a second electronic screen; 11. a control sub-end; 1101. a control board unit; 1102. a data acquisition unit; 1103. a communication unit; 12. and controlling the terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Referring to fig. 1-4, the invention provides a multifunctional railway platform cap device, which comprises a control terminal 12, a control sub-end 11 and a bearing plate 1, wherein the control sub-end 11 is in communication connection with the control terminal 12, and the control sub-end 11 corresponds to the bearing plate 1 one by one;
the bearing plate 1 is arranged on the surface of a platform, the bearing plate 1 corresponds to a carriage door of a stopped train, the bearing plate 1 is in a horizontal L-shaped structure, the problem that the existing platform elevation adhesive bricks fall off can be solved, the horizontal plane of the bearing plate 1 is flush with the surface of the platform, and the vertical plane of the bearing plate 1 is flush with the elevation of the platform, which is close to a track; the vertical surface of the bearing plate 1 is provided with a displacement sensor 3 and a voice prompt unit 2, the displacement sensor 3 and the voice prompt unit 2 are electrically connected with a control sub-end 11, the horizontal surface of the bearing plate 1 is provided with a safety yellow line area 5 and a safety white line area 4, the safety white line area 4 is adjacent to the safety yellow line area, and the safety white line area 4 is close to a train track; the surface of the bearing plate 1 is provided with a first installation concave cavity 101 and a second installation concave cavity 102, the first installation concave cavity 101 is positioned in the safety white line area 4, the second installation concave cavity 102 is positioned on one side of the safety yellow line area 5 far away from the safety white line area 4, a first electronic screen 7 for displaying a safety warning sign is installed at the bottom in the first installation concave cavity 101, a second electronic screen 10 for displaying the current train carriage number information is installed at the bottom in the second installation concave cavity 102, the first electronic screen 7 and the second electronic screen 10 are electrically connected with the control sub-end 11, transparent protection plates 9 are installed at the ports of the first installation concave cavity 101 and the second installation concave cavity 102, and the first electronic screen 7 and the second electronic screen 10 are protected through the transparent protection plates 9; the surface of the bearing plate 1 is provided with a white line out-of-range triggering unit 6, the white line out-of-range triggering unit 6 is positioned at one side of the safety white line area 4 far away from the safety yellow line area 5, and the white line out-of-range triggering unit 6 is electrically connected with the control sub-end 11;
the control sub-terminal 11 comprises a control board unit 1101, a data acquisition unit 1102 and a communication unit 1103, wherein the data acquisition unit 1102 is electrically connected with the control board unit 1101 and is used for processing data of the displacement sensor 3, the communication unit 1103 is electrically connected with the control board unit 1101 and is used for realizing communication between the control sub-terminal 11 and the control terminal 12, and the white line out-of-range triggering unit 6, the voice prompt unit 2, the first electronic screen 7 and the second electronic screen 10 are electrically connected with the control board unit 1101.
As an alternative embodiment, the ports of the first installation cavity 101 and the second installation cavity 102 are provided with the installation sinking groove 103, the transparent protection plate 9 is installed inside the installation sinking groove 103 through bolts, and the joint of the transparent protection plate 9 and the installation sinking groove 103 is coated with waterproof sealant, so that the sealing effect of the protection transparent plate on the first installation cavity 101 and the second installation cavity 102 is ensured, and the protection effect on the first electronic screen 7 and the second electronic screen 10 is ensured.
The thickness dimension of the transparent protection plate 9 is equal to the groove depth dimension of the installation countersink 103, so that the transparent protection plate 9 can be flush with the surface of the carrier plate 1.
The sealing groove 104 is formed in the bottom in the installation sinking groove 103, the sealing groove 104 is annularly distributed on the outer sides of the first installation concave cavity 101 and the second installation concave cavity 102, the sealing ring 901 is installed at the bottom end of the transparent protection plate 9, the sealing ring 901 corresponds to the sealing groove 104, the sealing ring 901 is in clearance fit with the sealing groove 104, and the sealing performance of the first installation concave cavity 101 and the second installation concave cavity 102 can be further improved through the sealing ring 901 and the sealing groove 104.
The waterproof lamp area 8 is embedded in the surface of the bearing plate 1, the waterproof lamp area 8 is annularly distributed around the safety white line area 4, and the waterproof lamp area 8 is electrically connected with the control panel unit 1101, so that the safety white line area 4 is more obvious due to the fact that night illumination is conducted through the waterproof lamp area 8.
The surface of the bearing plate 1 is provided with anti-slip patterns, so that the anti-slip effect can be achieved, and passengers are prevented from slipping.
The white line out-of-range triggering unit 6 is a human body proximity sensor, so that whether a passenger passes through the safety white line area 4 or not can be accurately monitored, and safety of the passenger is guaranteed.
With the adoption of the structure, when the device works, the arrangement and combination of the train carriage numbers are preset through the control terminal 12, the information is transmitted to the control board unit 1101 through the communication unit 1103, the first electronic screen 7 is controlled to work through the control board unit 1101, the carriage number information of the current train is displayed through the first electronic screen 7, the pointing direction of the adjacent carriage is displayed, passengers can conveniently and rapidly find the position of the carriage number needing to be taken, and the passengers wait, so that greater convenience is brought to the passengers waiting for the train; the control board unit 1101 controls the second electronic screen 10 to work, warning slogans are displayed through the second electronic screen 10, passengers are reminded not to cross the safety white line area 4, when the passengers cross the safety white line area 4 by mistake, the white line crossing triggering unit 6 triggers and transmits signals to the control board unit 1101, the control board unit 1101 receives the signals and controls the voice prompt unit 2 to carry out voice warning, the passengers are reminded to keep away, and personal safety of the passengers is guaranteed; after the train enters the station and stops stably, the distance between the train beside the stop platform and the edge of the station is measured through the displacement sensor 3, collected data are processed through the data collection unit 1102, the processed data are transmitted to the control terminal 12 through the communication unit 1103, real-time monitoring of the station limit is facilitated, and the change of the state of the station limit and the potential safety hazard can be found in time.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A multifunctional railway platform cap device is characterized in that: the control terminal comprises a control terminal (12), control sub-terminals (11) and a bearing plate (1), wherein the control sub-terminals (11) are in communication connection with the control terminal (12), and the control sub-terminals (11) are in one-to-one correspondence with the bearing plate (1);
the bearing plate (1) is arranged on the surface of a platform, the bearing plate (1) corresponds to a carriage door of a stopped train, the bearing plate (1) is of a horizontal L-shaped structure, the horizontal plane of the bearing plate (1) is level with the surface of the platform, and the vertical plane of the bearing plate (1) is level with the vertical plane of the platform, which is close to a rail; a displacement sensor (3) and a voice prompt unit (2) are arranged on the vertical surface of the bearing plate (1), the displacement sensor (3) and the voice prompt unit (2) are electrically connected with the control sub-end (11), a safety yellow line area (5) and a safety white line area (4) are arranged on the horizontal surface of the bearing plate (1), the safety white line area (4) is adjacent to the safety yellow line area (5), and the safety white line area (4) is close to a train track; the bearing plate (1) is provided with a first installation concave cavity (101) and a second installation concave cavity (102) on the surface, the first installation concave cavity (101) is located inside the safety white line area (4), the second installation concave cavity (102) is located on one side, far away from the safety white line area (4), of the safety yellow line area (5), a first electronic screen (7) for displaying a safety warning language is installed in the first installation concave cavity (101), a second electronic screen (10) for displaying current train carriage number information is installed in the second installation concave cavity (102), the first electronic screen (7) and the second electronic screen (10) are electrically connected with the control sub-end (11), and transparent protection plates (9) are installed at ports of the first installation concave cavity (101) and the second installation concave cavity (102); the white line out-of-range triggering unit (6) is arranged on the surface of the bearing plate (1), the white line out-of-range triggering unit (6) is positioned on one side of the safety white line area (4) far away from the safety yellow line area (5), and the white line out-of-range triggering unit (6) is electrically connected with the control sub-end (11);
the control sub-terminal (11) comprises a control board unit (1101), a data acquisition unit (1102) and a communication unit (1103), wherein the data acquisition unit (1102) is electrically connected with the control board unit (1101) and is used for processing data of the displacement sensor (3), the communication unit (1103) is electrically connected with the control board unit (1101) and is used for realizing communication between the control sub-terminal (11) and the control terminal (12), and the white line out-of-range triggering unit (6) is electrically connected with the control board unit (1101) through the voice prompt unit (2), the first electronic screen (7) and the second electronic screen (10).
2. A multi-function railroad platform cap apparatus according to claim 1, wherein: the waterproof sealing device is characterized in that the first installation concave cavity (101) and the second installation concave cavity (102) are respectively provided with an installation sinking groove (103), the transparent protection plate (9) is installed inside the installation sinking grooves (103) through bolts, and waterproof sealing glue is coated at the joint of the transparent protection plate (9) and the installation sinking grooves (103).
3. A multi-function railroad platform cap apparatus according to claim 2, wherein: the thickness dimension of the transparent protection plate (9) is equal to the groove depth dimension of the installation sinking groove (103).
4. A multi-purpose railroad platform cap assembly according to claim 3, wherein: the sealing device is characterized in that a sealing groove (104) is formed in the bottom in the installation sinking groove (103), the sealing groove (104) is annularly distributed on the outer side of the first installation concave cavity (101) and the outer side of the second installation concave cavity (102), a sealing ring (901) is installed at the bottom end of the transparent protection plate (9), the sealing ring (901) corresponds to the sealing groove (104), and the sealing ring (901) is in clearance fit with the sealing groove (104).
5. A multi-function railroad platform cap apparatus according to claim 1, wherein: waterproof lamp area (8) are embedded in the surface of the bearing plate (1), waterproof lamp area (8) are distributed around the safety white line area (4) in an annular mode, and the waterproof lamp area (8) is electrically connected with the control panel unit (1101).
6. A multi-function railroad platform cap apparatus according to claim 1, wherein: the surface of the bearing plate (1) is provided with anti-skid patterns.
7. A multi-function railroad platform cap apparatus according to claim 1, wherein: the white line out-of-range triggering unit (6) is a human body proximity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201884.XA CN109747661B (en) | 2019-03-18 | 2019-03-18 | Multifunctional railway platform cap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201884.XA CN109747661B (en) | 2019-03-18 | 2019-03-18 | Multifunctional railway platform cap device |
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| Publication Number | Publication Date |
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| CN109747661A CN109747661A (en) | 2019-05-14 |
| CN109747661B true CN109747661B (en) | 2024-03-08 |
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| CN201910201884.XA Active CN109747661B (en) | 2019-03-18 | 2019-03-18 | Multifunctional railway platform cap device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002384A (en) * | 2004-06-16 | 2006-01-05 | Nabtesco Corp | Platform screen door device |
| CA2502537A1 (en) * | 2005-03-30 | 2006-09-30 | Bahattin Gunes | Safety entrance norm (sen) |
| CN104527650A (en) * | 2014-11-28 | 2015-04-22 | 深圳市方大自动化系统有限公司 | Anti-pinch system applied to track traffic platform |
| CN205220656U (en) * | 2015-12-21 | 2016-05-11 | 天津智超星信号技术有限公司 | Novel railroad platform electron stops car logo |
| CN209566914U (en) * | 2019-03-18 | 2019-11-01 | 中国铁路沈阳局集团有限公司科学技术研究所 | A kind of multifunctional railway platform emits device |
-
2019
- 2019-03-18 CN CN201910201884.XA patent/CN109747661B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006002384A (en) * | 2004-06-16 | 2006-01-05 | Nabtesco Corp | Platform screen door device |
| CA2502537A1 (en) * | 2005-03-30 | 2006-09-30 | Bahattin Gunes | Safety entrance norm (sen) |
| JP2008534357A (en) * | 2005-03-30 | 2008-08-28 | ギュネス バハッティン | Safety ride standards |
| CN104527650A (en) * | 2014-11-28 | 2015-04-22 | 深圳市方大自动化系统有限公司 | Anti-pinch system applied to track traffic platform |
| CN205220656U (en) * | 2015-12-21 | 2016-05-11 | 天津智超星信号技术有限公司 | Novel railroad platform electron stops car logo |
| CN209566914U (en) * | 2019-03-18 | 2019-11-01 | 中国铁路沈阳局集团有限公司科学技术研究所 | A kind of multifunctional railway platform emits device |
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| CN109747661A (en) | 2019-05-14 |
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Effective date of registration: 20200923 Address after: 110013 4-3, Jing bin street, Shenhe District, Shenyang City, Liaoning province (1-7 level) Applicant after: Shenyang Railway Science and Technology Research Institute Co.,Ltd. Address before: 110113 No. 4-3 Jingbin Street, Shenhe District, Shenyang City, Liaoning Province Applicant before: Science and Technology Institute of China Railway Shenyang Bureau Group Co.,Ltd. |
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