CN112550369A - Switch application on-line state monitoring system - Google Patents
Switch application on-line state monitoring system Download PDFInfo
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- CN112550369A CN112550369A CN201910917419.6A CN201910917419A CN112550369A CN 112550369 A CN112550369 A CN 112550369A CN 201910917419 A CN201910917419 A CN 201910917419A CN 112550369 A CN112550369 A CN 112550369A
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- turnout
- switch
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- monitoring system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
- B61L23/04—Control, warning, or like safety means along the route or between vehicles or vehicle trains for monitoring the mechanical state of the route
Abstract
The invention relates to an on-line state monitoring system for switch application, which comprises a front-end sensor (1), a node unit (2), a base station (3), a server (4) and an upper computer (5), wherein the front-end sensor (1) is arranged at a switch traction point and is connected with the upper computer (5) sequentially through the node unit (2), the base station (3) and the server (4). Compared with the prior art, the invention has the following advantages: the method comprises the following steps that important indexes such as the turnout dynamic state, the turnout static state closure amount, the opening amount, the crawling amount, the turnout frame and the like are comprehensively monitored and displayed on line, the future running state of the turnout is predicted and judged and the like, and the turnout dynamic monitoring is the monitoring of important indexes such as the turnout closure amount, the opening amount, the crawling amount, the turnout frame and the like in the process that a train passes through the turnout or the turnout is positioned and reversed to rotate; the static monitoring of the turnout is the monitoring of the state above the turnout when no train passes and the turnout does not rotate.
Description
Technical Field
The invention relates to the field of turnout monitoring, in particular to an on-line turnout application state monitoring system.
Background
Along with the increasing of railway speed-up and high-density driving sections, the requirements on the turnout application quality and the state stability are higher and higher in order to ensure the driving safety.
Foreign matters exist between the stock rails and the switch rails of the turnout or the switch machine has poor action, so that the close contact between the stock rails and the switch rails is overlarge, and further, the accident of extruding the turnout is caused.
When a train passes through a turnout at a high speed, the turnout (particularly a switch rail) continuously bears extremely large acting force with low frequency, large amplitude and high frequency, small amplitude; if the turnout state information cannot be timely and effectively acquired, and the railway engineering electric department carries out combined renovation operation to eliminate the diseases in the early deterioration stage of the turnout, the operating states of the point switch and the turnout will rapidly deteriorate, so that equipment is damaged, and the driving safety is endangered.
At present, the manual inspection method is mainly adopted for monitoring the turnout operation state in China, the efficiency is low, and the turnout health information of the system is difficult to provide. With the progress of electronic technology in recent years, railway electric service departments introduce turnout gap monitoring systems, follow the technical specification of turnout gap monitoring systems of the state iron group (original iron general company), and adopt two modes of mechanical contact type or photoelectric detection type sensors (such as a camera and a grating optical fiber sensor) installed in a point switch to identify gaps of detection rods. The following problems mainly exist in the way of monitoring the gap of the detection rod of the switch machine: 1. the monitoring result is inaccurate, and false alarm often occurs due to the complex field environment; 2. the monitoring parameters are few, only one notch value can be measured, and the main parameters of turnout operation states such as turnout closure, opening and crawling quantity cannot be comprehensively measured; 3. the indirect monitoring can not directly reflect the above operation parameter values of the turnout; 4. the monitoring frequency is low, and the train can not be dynamically monitored when passing the rail.
In addition, for the mode of directly measuring the turnout operation state by adopting the eddy current sensor, the effective measuring distance of the eddy current sensor is short (generally not more than 40mm), and only parameters such as close contact, crawling amount and the like can be measured; in addition, the protection grade and stability of the eddy current sensor in actual use cannot meet the requirement of long-time continuous and stable operation in the railway environment.
With the development of electronic communication technology, the system for directly monitoring the working state of the railway turnout equipment can dynamically/statically acquire important parameters concerned by railway electric engineering in real time, provide early warning maintenance information, enable railway operation and maintenance personnel to know the turnout state and change trend in time, find potential problems and realize preventive state maintenance of the turnout related equipment.
Disclosure of Invention
The present invention aims to overcome the above-mentioned drawbacks of the prior art and provide an on-line monitoring system for turnout operation.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a switch application on-line status monitoring system, this system includes front end sensor, node unit, basic station, server and host computer, the front end sensor locate the switch pulling point, loop through node unit, basic station and server connection host computer.
Preferably, each of the switch traction points is provided with a group of front end sensors and a node unit.
Preferably, when the point of traction of the turnout is the first one, the group of front-end sensors comprises two piezoelectric acceleration sensors, three hysteresis expansion displacement sensors, a temperature sensor and a humidity sensor; when the point of traction of the turnout is the second or more, the group of front-end sensors at the point comprises three hysteresis telescopic displacement sensors.
Preferably, two first hysteresis extension displacement sensors of the three hysteresis extension displacement sensors are arranged perpendicular to the stock rail and used for measuring the distance between the turnout switch rail and the stock rail, realizing dynamic and static monitoring of the close contact quantity and the opening quantity between the turnout switch rail and the stock rail and also being used for measuring change data in the turnout positioning and reversing conversion process;
and a second hysteresis telescopic displacement sensor in the three hysteresis telescopic displacement sensors is arranged in the middle of the roadbed and used for measuring the distance between the two stock rails and realizing the dynamic and static monitoring of the turnout frame.
Preferably, the vernier magnet of the hysteresis telescopic displacement sensor is fixed on the switch rail and suspended above the measuring rod of the sensor, so that a non-contact displacement measurement mode is realized.
Preferably, the piezoelectric acceleration sensors are arranged on stock rails in front of the switch rails, each stock rail is respectively provided with one piezoelectric acceleration sensor, whether a train passes through the monitoring system is judged according to output data of the piezoelectric acceleration sensors, and the system automatically adjusts the sampling frequency of the hysteresis telescopic displacement sensor according to whether the train passes through;
when the output data of the piezoelectric acceleration sensor exceeds a set threshold value, the train is judged to pass through a monitoring system, and at the moment, the node unit accelerates the acquisition rate of the hysteresis telescopic displacement sensor to realize dynamic monitoring; when the output data of the piezoelectric acceleration sensor is lower than a set threshold value, it is judged that no train passes through the monitoring system, and at the moment, the node unit reduces the acquisition rate of the hysteresis telescopic displacement sensor and reduces the data transmission quantity.
Preferably, the temperature sensor and the humidity sensor are arranged beside the rail and used for measuring environmental data of the turnout.
Preferably, the node unit comprises a power supply, a data acquisition circuit, a data processing circuit and a wireless transceiver circuit, wherein the power supply is respectively connected with the front-end sensor, the data acquisition circuit, the data processing circuit and the wireless transceiver circuit, and the data processing circuit is respectively connected with the data acquisition circuit and the wireless transceiver circuit;
the data acquisition circuit is used for acquiring data of the accessed front-end sensor; the data processing circuit adjusts the acquisition rate of the hysteresis telescopic displacement sensor according to the data of the piezoelectric acceleration sensor, and analyzes, compresses and converts the acquired data of the front-end sensor; the wireless transceiver circuit is used for transmitting data to the base station to which the wireless transceiver circuit belongs.
Preferably, the base station receives data of subordinate node units within several kilometers of the base station, and then sends the data to a server in a railway machine room through an operator public network;
the server is used for storing data, analyzing the health state of the turnout, operating web service and providing user authentication, data query everywhere and data graphical display for users.
Preferably, the upper computer provides user login and management webpages, provides users with user login according to different grades of road offices, stations, sections and workshops, and provides turnout real-time and historical data query and graphical display, health state analysis and maintenance early warning.
Compared with the prior art, the invention has the following advantages:
1. the system collects important parameters such as the turnout application state related closure amount, the opening amount, the crawling amount, the stock rail distance and the like of the turnout in real time, and realizes comprehensive online monitoring on the turnout application state.
2. The system firstly proposes to adopt a non-contact hysteresis telescopic displacement sensor to realize the continuous and uninterrupted monitoring of turnout operation data in the static, dynamic and turnout conversion processes, and the dynamic monitoring of the turnout is the monitoring of important indexes such as turnout closure, opening, crawling amount, turnout frame and the like in the process that a train passes through the turnout or the fixed-position and reverse-position rotation of the turnout; the static monitoring of the turnout is the monitoring of the state above the turnout when no train passes and the turnout does not rotate.
3. The system judges whether the train passes the rail according to the output value of the vibration sensor, so that the sampling frequency of the sensor is adjusted.
4. The system establishes a large database of the operation state of the railway turnout, summarizes the change rule of the turnout according to the analysis of turnout monitoring data, and predicts and judges the future operation state of the turnout.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic layout diagram of the double-traction point (double-machine double-point) turnout site system equipment of the double-track switch of the invention.
FIG. 3 is a diagram of an upper computer monitoring interface according to the present invention.
Wherein 1 is the front end sensor, 2 is the node unit, 3 is the base station, 4 is the server, 5 is the host computer, 11 is piezoelectric type acceleration sensor, 12 is the flexible displacement sensor of hysteresis lag, 13 is temperature sensor, 14 is humidity transducer, 121 is the flexible displacement sensor of first hysteresis lag, 122 is the flexible displacement sensor of second hysteresis lag.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
As shown in fig. 1, the system for monitoring the on-line state of the switch application comprises a front-end sensor 1, a node unit 2, a base station 3, a server 4 and an upper computer 5, wherein the front-end sensor 1 is arranged at a switch traction point and is connected with the upper computer 5 sequentially through the node unit 2, the base station 3 and the server 4.
As shown in fig. 2, each switch traction point is provided with a group of front end sensors 1 and a node unit 2.
When the point of traction of the turnout is the first point, the group of front-end sensors 1 comprises two piezoelectric acceleration sensors 11, three hysteresis telescopic displacement sensors 12, a temperature sensor 13 and a humidity sensor 14; when the point of traction of the turnout is the second or more, the front end sensor 1 of the point comprises three hysteresis telescopic displacement sensors 12.
Two first hysteresis extension displacement sensors 121 of the three hysteresis extension displacement sensors 12 are installed perpendicular to the stock rails and used for measuring the distance between the turnout switch rails and the stock rails, realizing dynamic and static monitoring of the sealing amount and the opening amount between the turnout switch rails and the stock rails, and also being used for measuring change data in the turnout positioning and reversing conversion process.
The vernier magnet of the hysteresis telescopic displacement sensor 12 is fixed on the switch rail and suspended above the measuring rod of the sensor, so that a non-contact displacement measurement mode is realized.
The second hysteresis telescopic displacement sensor 122 is installed in the middle of the roadbed and used for measuring the distance between two stock rails and realizing dynamic and static monitoring of the turnout frame.
The piezoelectric acceleration sensors 11 are arranged on stock rails in front of switch rails, each stock rail is respectively provided with one piezoelectric acceleration sensor 11, whether a train passes through a monitoring system is judged according to output data of the piezoelectric acceleration sensors, and the system automatically adjusts the sampling frequency of the hysteresis telescopic displacement sensor 12 according to whether the train passes through.
When the output data of the piezoelectric acceleration sensor 11 exceeds a set threshold value, it is determined that a train passes through a monitoring system, and at the moment, the node unit 2 accelerates the acquisition rate of the hysteresis telescopic displacement sensor 12 to realize dynamic monitoring; when the output data of the piezoelectric acceleration sensor 11 is lower than the set threshold value, it is determined that no train passes through the monitoring system, and at this time, the node unit 2 reduces the acquisition rate of the hysteresis telescopic displacement sensor 12, and reduces the amount of transmission data.
The temperature sensor 13 and the humidity sensor 14 are arranged beside the rail and used for measuring the environmental data of the turnout.
The node unit 2 comprises a power supply, a data acquisition unit, a data processing unit and a wireless transceiver, wherein the power supply is used for supplying power to the accessed front-end sensor 1 and the node unit 2; the data acquisition is used for acquiring data of the accessed front-end sensor 1; the data processing adjusts the acquisition rate of the hysteresis telescopic displacement sensor 12 according to the data of the piezoelectric acceleration sensor 11, and analyzes, compresses and converts the acquired data of the front-end sensor 1; the wireless transceiving is used for transmitting data to the base station 3 to which the wireless transceiving belongs.
The base station 3 receives data of the subordinate node units 2 within several kilometers nearby, and then sends the data to the server 4 in the machine room of the railway department through the public network of the operator.
The server 4 is used for storing data, analyzing the health state of the turnout, operating web service and providing user authentication, data query and data graphical display for users.
As shown in fig. 3, the upper computer 5 provides a user login and management web page, provides users with user logins of different grades according to the road bureau, station, section and workshop, and provides turnout real-time and historical data query and graphical display, health state analysis and maintenance early warning.
The railway turnout type also comprises various forms such as three-point switch, three-traction point (three-point switch) and multi-machine multi-point traction turnout, and the system of the invention can be applied to the turnout of the type.
If the distances among the multiple groups of front-end sensors are close enough, the front-end sensors can access the data acquisition part of the same node unit and share one node unit, so that the number of system equipment is reduced, and the system cost is reduced.
For the turnout type equipment arrangement of more than two traction points, the equipment arrangement of a double-machine double-point is referred, namely, at the subsequent traction point, only one hysteresis expansion displacement sensor for measuring the opening amount and the close adhesion amount is required to be respectively arranged on two movable rails, and a hysteresis expansion displacement sensor for measuring the distance between stock rails is required to be arranged in the middle of a roadbed, and a temperature and humidity sensor and a piezoelectric type acceleration sensor are not required to be arranged.
The hysteresis telescopic displacement sensor has good temperature compensation performance and stability, can ensure long-time stable work after initial installation and debugging are finished, and does not need to be calibrated again. The maintainer can adopt specialized tool such as sharp chi, slide caliper to measure the value of switch closure amount, opening volume, compares with displacement sensor output value. If the deviation exceeds the allowable range, the calibration needs to be recalibrated. And recording the output voltage of the displacement sensor at regular intervals during calibration, and inputting the actual distance and the output voltage value of the corresponding displacement sensor into calibration software after measurement is finished so as to finish calibration.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a switch application on-line status monitoring system, its characterized in that, this system includes front end sensor (1), node unit (2), basic station (3), server (4) and host computer (5), front end sensor (1) locate the switch pulling point, loop through node unit (2), basic station (3) and server (4) and connect host computer (5).
2. A switch use on-line status monitoring system according to claim 1, wherein each said switch traction point is provided with a set of front end sensors (1) and a node unit (2).
3. The on-line turnout state monitoring system according to claim 2, wherein when the turnout traction point is the first one, the set of front sensors (1) comprises two piezoelectric acceleration sensors (11), three hysteresis displacement sensors (12), a temperature sensor (13) and a humidity sensor (14); when the traction point of the turnout is the second or more, the front end sensor (1) of the point comprises three hysteresis expansion displacement sensors (12).
4. The on-line switch application state monitoring system according to claim 3, wherein two first hysteretic telescopic displacement sensors (121) of the three hysteretic telescopic displacement sensors (12) are installed perpendicular to the stock rail and used for measuring the distance between the switch blade and the stock rail, realizing dynamic and static monitoring of the close contact amount and the open contact amount between the two switch blades of the switch and the stock rail, and also being used for measuring the change data in the switch positioning and reversing conversion process;
and a second hysteresis telescopic displacement sensor (122) in the three hysteresis telescopic displacement sensors (12) is arranged in the middle of the roadbed and used for measuring the distance between two stock rails and realizing the dynamic and static monitoring of the turnout frame.
5. The on-line switch point state monitoring system according to claim 4, wherein the vernier magnet of the hysteresis displacement sensor (12) is fixed on the switch rail and suspended above the sensor rod, so as to realize a non-contact displacement measurement mode.
6. The on-line switch application state monitoring system according to claim 3, wherein the piezoelectric acceleration sensors (11) are arranged on stock rails in front of switch rails, each stock rail is respectively provided with one piezoelectric acceleration sensor (11), whether a train passes through the monitoring system is judged according to output data of the piezoelectric acceleration sensors, and the system automatically adjusts the sampling frequency of the hysteresis telescopic displacement sensor (12) according to whether the train passes through a switch;
when the output data of the piezoelectric acceleration sensor (11) exceeds a set threshold value, the train is judged to pass through a monitoring system, and at the moment, the node unit (2) accelerates the acquisition rate of the hysteresis telescopic displacement sensor (12) to realize dynamic monitoring; when the output data of the piezoelectric acceleration sensor (11) is lower than a set threshold value, it is judged that no train passes through the monitoring system, and at the moment, the node unit (2) reduces the acquisition rate of the hysteresis expansion displacement sensor (12) and reduces the data transmission amount.
7. The on-line switch operating condition monitoring system according to claim 3, wherein the temperature sensor (13) and the humidity sensor (14) are disposed beside the track for measuring the environmental data of the switch.
8. The on-line monitoring system for switch application as claimed in claim 3, wherein the node unit (2) comprises a power supply, a data acquisition circuit, a data processing circuit and a wireless transceiver circuit, the power supply is respectively connected with the front end sensor (1), the data acquisition circuit, the data processing circuit and the wireless transceiver circuit, and the data processing circuit is respectively connected with the data acquisition circuit and the wireless transceiver circuit;
the data acquisition circuit is used for acquiring data of the accessed front-end sensor (1); the data processing circuit adjusts the acquisition rate of the hysteresis telescopic displacement sensor (12) according to the data of the piezoelectric acceleration sensor (11), and analyzes, compresses and converts the acquired data of the front-end sensor (1); the wireless transceiver circuit is used for transmitting data to the base station (3) to which the wireless transceiver circuit belongs.
9. The on-line state monitoring system for switch application according to claim 1, wherein the base station (3) receives data of subordinate node units (2) within several kilometers nearby, and then sends the data to the server (4) in the railway machine room through the public network of the operator;
the server (4) is used for storing data, analyzing the health state of the turnout, operating web service and providing user authentication, data query everywhere and data graphical display for users.
10. The switch operation online state monitoring system according to claim 1, wherein the upper computer (5) provides a user login and management webpage, provides users with user login according to different levels of a road bureau, a station, a section and a workshop, and provides switch real-time and historical data query and graphical display, health state analysis and maintenance early warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917419.6A CN112550369A (en) | 2019-09-26 | 2019-09-26 | Switch application on-line state monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917419.6A CN112550369A (en) | 2019-09-26 | 2019-09-26 | Switch application on-line state monitoring system |
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| CN112550369A true CN112550369A (en) | 2021-03-26 |
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| CN201910917419.6A Pending CN112550369A (en) | 2019-09-26 | 2019-09-26 | Switch application on-line state monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562030A (en) * | 2021-07-26 | 2021-10-29 | 西安和利时系统工程有限公司 | Comprehensive control system for turnouts |
| CN114475716A (en) * | 2022-01-24 | 2022-05-13 | 中国国家铁路集团有限公司 | Method, device, equipment and storage medium for detecting turnout working state |
| CN115535030A (en) * | 2022-11-07 | 2022-12-30 | 通号通信信息集团上海有限公司 | Turnout state detection method and device based on number of zero crossings of turnout closure value |
| CN117191950A (en) * | 2023-11-07 | 2023-12-08 | 通号通信信息集团有限公司 | Rail hanging structure health monitoring method, system, storage medium and computing equipment |
-
2019
- 2019-09-26 CN CN201910917419.6A patent/CN112550369A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562030A (en) * | 2021-07-26 | 2021-10-29 | 西安和利时系统工程有限公司 | Comprehensive control system for turnouts |
| CN114475716A (en) * | 2022-01-24 | 2022-05-13 | 中国国家铁路集团有限公司 | Method, device, equipment and storage medium for detecting turnout working state |
| CN115535030A (en) * | 2022-11-07 | 2022-12-30 | 通号通信信息集团上海有限公司 | Turnout state detection method and device based on number of zero crossings of turnout closure value |
| CN115535030B (en) * | 2022-11-07 | 2023-08-08 | 通号通信信息集团上海有限公司 | Switch state detection method and device based on switch close value zero crossing number |
| CN117191950A (en) * | 2023-11-07 | 2023-12-08 | 通号通信信息集团有限公司 | Rail hanging structure health monitoring method, system, storage medium and computing equipment |
| CN117191950B (en) * | 2023-11-07 | 2024-04-02 | 通号通信信息集团有限公司 | Rail hanging structure health monitoring method, system, storage medium and computing equipment |
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