CN210347096U

CN210347096U - Online monitoring device for anchor section of contact net

Info

Publication number: CN210347096U
Application number: CN201921275392.7U
Authority: CN
Inventors: 宋东健; 张建峰; 姜成; 胡志军
Original assignee: Zhengzhou Yida Information Technology Co Ltd
Current assignee: Zhengzhou Yida Information Technology Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-04-17
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a contact net anchor section on-line monitoring device comprises first host computer 1, first follow machine 2, second host computer 3, second follow machine 4. The device passes through micro-electromechanical acceleration sensor, the range finding sensor, temperature and humidity sensor, satellite data receiving module, wireless communication module, wireless networking module and radar module real-time supervision contact net compensator's weight cluster altitude variation, real-time supervision contact net acceleration value changes, the hard spot changes, the amplitude of oscillation changes, the broken string, compensator jamming fault information, and environment humiture, position and time information, and with sending to high in the clouds data analysis and processing center after the data preprocessing, overhaul the mechanism for the contact net and provide support. The device solves the problems that the state of the contact network cannot be acquired all the time and the feedback speed is low in a detection vehicle and manual inspection mode, so that the overhaul work is more targeted and the efficiency is higher, thereby improving the quality of a traction power supply system and improving the safety of train operation.

Description

Online monitoring device for anchor section of contact net

Technical Field

The utility model relates to a contact net state on-line monitoring device, especially an electrified railway contact net anchor section state on-line monitoring device.

Background

The contact net is an important task for providing electric energy for the electric locomotive, and the running working state of the contact net directly influences the transportation capacity and safety of the electrified railway. Due to the particularity of the contact network, the open-air arrangement of the contact network is determined and no standby is available, the contact network has complexity, meanwhile, the arrangement of the contact network in a geographic space has trans-regional and trans-climatic properties, and the contact network needs to work uninterruptedly in complex geographic environments such as plains, hills, mountainous areas and the like and interference and erosion of natural environments such as wind, frost, rain, snow and the like.

The contact network has complex and various failure conditions, wherein the main ones are the following types: firstly, the positioning device related to the overhead line system breaks down, and the lead-height and pull-out value of the overhead line system changes. And secondly, under the influence of natural wind, the contact line is caused to resonate under extreme conditions, the contact line swings violently, the height guide and pull-out values exceed the designed safety values, and the compensation device also loses the function. And thirdly, the contact network is damaged due to metal fatigue, and the contact network is suddenly broken, so that the power supply arm of the contact network is powered off, and the locomotive is stopped. Fourthly, the anchor section compensation device of the contact net is stuck, the contact net loses elasticity, the required range of the design tension cannot be kept, and the bow net accident occurs. These failures can severely affect rail transport, causing significant economic loss and casualty accidents.

The current state monitoring of the contact network mainly comprises two types, one type is that a line of detection vehicles runs a certain section of line through periodic driving, and state parameters such as leading-up and pulling-out values and hard spots of the contact network are collected through sensors arranged on the detection vehicles. The other method is to measure the parameter change of the overhead line system on site through manual inspection, visual inspection or using a carried tool. The monitoring methods provide basic guarantee for the normal operation of the contact network, but the two methods belong to periodic plan monitoring, cannot acquire dynamic data of the contact network in real time all day long and all time, cannot acquire a plurality of inducements causing the faults of the contact network, cannot accurately judge the true reasons of the faults, brings uncertainty and blindness to the overhaul and maintenance work of the contact network, cannot realize high-efficiency overhaul and high-efficiency fault removal, and brings hidden dangers to safe driving.

Disclosure of Invention

The utility model provides a technical problem be: aiming at the defects of the existing contact net monitoring technology, the device for monitoring the anchor section of the contact net on line in real time at all time intervals and all weather is provided.

The utility model provides a technical scheme that its technical problem adopted is: the contact net is composed of several anchor segments with different distances from several tens meters to two kilometers, and the pull-out value, height, tension, swing amplitude, frequency and hard point impact of the contact net are influenced by the acting force of the pantograph of the electric locomotive and the influence of natural environmental factors, so that the state change caused by the acting force and the influence of natural environmental factors can be transmitted to the whole contact line of the anchor segment and the contact line compensator through the contact line of metal material. The messenger wire displacement changes, which also provide the suspension support for the contact wire, are also transmitted to the entire messenger wire of the anchor section and to the messenger wire compensator. Through the change of the a value and the b value of the full-time monitoring compensation device and the change of the swing amplitude, the frequency and the hard point impact of the contact wire and the carrier cable, the information is uploaded to a cloud software data analysis platform through a wireless networking module to analyze and diagnose the operation state of the contact network, and the real-time monitoring, early warning and alarming of the contact network state are realized.

In order to achieve the above object, the utility model provides a contact net anchor section on-line monitoring equipment, the device includes: a first master 1 and a second slave 2, a second master 3 and a second slave 4. The first host 1 and the second host 2 have the same function and structure, the first slave 2 and the second slave 4 have the same function and structure, the first host 1 and the second host 2 are described as an example, the shell 24 of the first host 1 is made of metal material, the top cover 28 of the shell is made of nonmetal material, the solar cell panel A, the built-in embedded control panel A, the micro-electromechanical acceleration sensor A, the satellite data receiving module, the wireless communication module A, the wireless networking module and the lithium battery pack A are laid on the shell and the top cover, and the external temperature and humidity sensor, the distance measuring sensor and the radar module are arranged on the shell and the top cover. The slave machine shell 67 of the first slave machine 2 is made of a non-metal material, a solar cell panel B is laid outside, and an embedded control panel B, a micro-electromechanical acceleration sensor B1, a micro-electromechanical acceleration sensor B2, a wireless communication module B and a lithium battery pack B are arranged inside. The distance measuring sensor and the temperature and humidity sensor of the first host (1) are externally fixed at the edge of the top cover 28 of the machine shell and positioned below the top cover 28 of the machine shell, and the distance measuring sensor 26 is used for measuring the distance towards the base surface 16. The first host 1 and the second host 3 are respectively arranged on the uppermost layer of the weight string 5 of the contact line compensator and the upper layer of the weight string 17 of the carrier cable compensator and respectively displace with the weight string 5 of the contact line compensator and the weight string 17 of the carrier cable compensator in a step manner.

First host computer

1, 3 inner structure of second host computer are the same, all contain embedded control panel, wireless communication module, satellite receiving module, wireless networking module, lithium cell group, micro-electromechanical acceleration sensor, temperature and humidity sensor, range sensor, radar module, and solar cell panel is all applied to the top cap and the lateral wall of first host computer 1 and second host computer 3. The first host 1 and the second host 3 receive the satellite time, synchronize clocks of the embedded control boards, send clock calibration information and calibrate the clocks of the embedded control boards of the first slave 2 and the second slave 4. The method comprises the steps that a first host 1 and a second host 3 respectively measure vertical distance values between a contact line compensator weight string 5 and a catenary compensator weight string 17 to a base surface 16, an environment temperature and humidity value, acceleration values of the contact line compensator weight string 5 and the catenary compensator weight string 17 and an arrival time value of a locomotive are collected, a contact network 9 and a catenary 12 acceleration value sent by a first slave 2 and a second slave 4 are respectively received, the collected and calculated a value, b value, environment temperature and humidity value, acceleration value, locomotive information value, satellite time value and a running state of the contact network compensator are transmitted to a cloud software data analysis platform through a wireless network module after being coded and compressed by the first host 1 and the second host 3 to analyze and diagnose the running state of the contact network, online real-time monitoring, early warning and alarming of the contact network state are achieved, the attached drawings 1, the attached drawings of the installation layout of the first host 1 and the second host 2, and the attached drawings of the first host 1 and the second host 2 are included in the, The structure of the device is shown in figure 2, and the connection relation of modules is shown in figure 3.

The first slave machine 2 and the second slave machine 4 are respectively arranged on a contact line 9 at the high-voltage side of an insulator string 8 at the tail end of an anchor section of a contact network and a catenary 12 at the high-voltage side of an insulator string 11 at the tail end of the catenary, the acceleration values of the contact line 9 and the catenary 12 are monitored, the acceleration values are respectively sent to the first host machine 1 and the second host machine 3 through wireless communication modules, and in addition, command data and time synchronization data of the first host machine 1 and the second host machine 3 are respectively received. The first slave machine 2 and the second slave machine 4 are identical in structure and comprise an embedded control panel, a wireless communication module, a micro-electromechanical sensor, a lithium battery pack and a solar panel, and the first slave machine 2 and the second slave machine 4 are arranged in an attached drawing 1, an attached structural drawing 4 and an attached drawing 5 of connection relation of all modules.

The utility model has the advantages that: the device monitors the key state of an anchor section of a contact network in real time, monitors the height change of a weight string 5 of a contact line compensator, the height change of a weight string 17 of a catenary compensator, the hard point impact change of the contact line, the acceleration value change, oscillation, swing amplitude, broken line and compensator clamping stagnation fault information of the contact network and the catenary due to factors such as weather, environmental change and electric locomotive passing, and sends the data codes to a cloud data analysis and processing center for processing after compression processing, thereby providing data for a contact network maintenance mechanism. The device can extensively be applied to the contact net anchor section, realizes all-weather full period monitoring, solves the unable real-time acquisition contact net anchor section operating condition of detection vehicle and artifical inspection methods, inefficiency, the slow problem of feedback speed, can send contact net anchor section operating condition to contact net repair workshop and worker district very first time, sends early warning, alarm information and fault information, makes more corresponding of contact net repair work, and efficiency is higher to improve the quality of traction power supply system, improve the security of train operation.

Description of the drawings:

the present invention will be further explained with reference to the drawings and examples.

FIG. 1 is an installation layout diagram of the utility model at one end of the anchor section of the contact net;

fig. 2 is a schematic structural diagram of the first host 1 and the second host 3;

fig. 3 is a connection relationship diagram of the respective constituent modules of the first host 1 and the second host 3;

fig. 4 is a schematic structural diagram of the first slave 2 and the second slave 4;

fig. 5 is a connection relationship diagram of component modules of the first slave 2 and the second slave 4;

in the figure 1, 1 is a first main machine, 2 is a first auxiliary machine, 3 is a second main machine, 4 is a second auxiliary machine, 5 is a contact line compensator weight string, 6 is a contact line weight rod earring hole center, 7 is a contact line fixed pulley center, 8 is a contact line insulator string, 9 is a contact line, 10 is a contact line compensation rope, 11 is a catenary insulator string, 12 is a catenary compensator weight string, 13 is a catenary weight rod earring hole center, 14 is a catenary fixed pulley center, 15 is a catenary compensation rope, 16 is a foundation surface, and 17 is a catenary compensator weight string.

In FIG. 2, the solar cell panel comprises a radar module 20, a solar cell panel A, a solar cell panel 22, an embedded control panel A, a lithium battery pack 24, a metal shell A, a metal shell 25, a fixing bolt A, a distance measuring sensor 26, a temperature and humidity sensor 27, a nonmetal top cover 28, a fixing pull rod through hole 29, a fixing pull rod through hole 30, a fixing pull rod 31, a wireless communication module A, a wireless communication module 32, a micro-electromechanical acceleration sensor A, a weight rod 33, a weight rod through hole 34, a wireless networking module 35 and a satellite data receiving module 36.

In fig. 4, 40 is an embedded control board B, 41 is a wireless communication module B, 42 is a lithium battery pack B, 43 is a micro-electromechanical acceleration sensor B1, 44 is a micro-electromechanical acceleration sensor B2, 45 is a solar battery board B, 46 is a fixing groove 47 is a non-metal shell 48 is a fixing bolt B.

The specific implementation mode is as follows:

the first host 1 and the second host 3 are respectively arranged on the balance weight string 5 of the contact line compensator of the contact line anchor section and the uppermost layer of the carrier cable compensator balance weight string 12 and respectively synchronously displace with the balance weight string 5 of the contact line compensator and the balance weight string 17 of the carrier cable compensator. The first slave machine 2 and the second slave machine 4 are respectively arranged on the contact line 9 and the catenary 12, and are rigidly connected with the contact line 9 and the catenary 12. The first host 1 and the first slave machine 2 are in data communication through the wireless communication module, the second host 3 and the second slave machine 4 are in data communication through the wireless communication module, and the first host 1 and the second host 3 are in data communication with the cloud data analysis and processing platform through the wireless networking module.

The first master 1, the first slave 2, the second master 3 and the second slave 4 all work in a low-frequency mode when no train passes through: the first host 1 and the second host 3 collect environment temperature and humidity values in an hour unit, measure height values of the balance weight string to a foundation surface in an hour unit, collect acceleration values of the balance weight string in an external interruption mode, and send alarm information to a cloud data analysis and processing center in time when acceleration sudden changes are caused by disconnection and violent swinging of a contact network. The satellite data is received in 24 hours, clocks of the satellite data and the first slave machine 2 and the second slave machine 4 are synchronized, and micro-electromechanical acceleration sensors B1 of the first slave machine 2 and the second slave machine 4 acquire acceleration values of the overhead line system 9 and the catenary 12 in units of every second and send the acceleration values to the first host machine 1 and the second host machine 3 in time when the acceleration values exceed the limit value. When a train arrives, the whole contact net online monitoring device enters a high-frequency acquisition mode: when the micro-electromechanical acceleration sensor B1 of the first slave machine 2 and the second slave machine 4 is kept to collect data in units of each second, the first slave machine 2 and the second slave machine 4 start the micro-electromechanical acceleration sensor B2 to enter a collection mode of 10kHz per second, and when the threshold value is exceeded, all collected data of 5 seconds before and after the occurrence time of the threshold value are sent to the first host machine 1 and the second host machine 3. The first host 1 and the second host 3 increase the frequency of collecting the weight string 5 to the height value of the foundation surface from each hour to the height value of collecting the weight string to the foundation surface 16 from each second.

In the terminology of the electric railway, the length from the center of an earring hole of a weight rod to the center of a fixed pulley is called the value a of the compensator, and the distance from the bottom surface of the bottommost weight of the contact wire weight string 5 and the carrier wire weight string 17 to the base surface 16 is called the value b of the compensator. Then a11 is the a value for the contact line compensator, b11 is the b value for the contact line compensator, a12 is the a value for the catenary compensator, and b12 is the b value for the catenary compensator.

The first main machine 1 and the second main machine 3 respectively calculate the a value and the b value of the contact line compensator and the catenary compensator by the following formulas.

Contact line compensator a value = a11= H11-H11-d 11.

Contact line compensator b value = b11= h 11-L11.

The a value of the catenary compensator = a12= H12-H12-d 12.

The b value of the catenary compensator = b12= h 12-L12.

H11-vertical distance of the center of the fixed sheave 7 to the base face 16.

H12-vertical distance from the center of the fixed sheave 14 to the base surface 16.

L11 — length of weight string 5 of contact line compensator + height of first host 1.

L12-the length of the weight string 17 of the catenary compensator + the height of the second host 3.

d 11-vertical distance from contact wire weight bar earring hole center 6 to the top of first host 1.

d 12-vertical distance from the center 13 of the ear ring hole of the carrier cable weight rod to the top of the second host 3.

h 11-the distance value from the top of the first host 1 to the base surface 16.

h 12-the distance value from the top of the second host 3 to the base surface 16.

Lithium battery packs are arranged in the first main machine 1, the second main machine 3, the first slave machine 2 and the second slave machine 4, and charging is carried out through solar cell panels laid on the shell. The embedded control panels of the first host 1 and the second host 3 adopt an ultra-low power consumption controller to manage a peripheral wireless networking module, a wireless communication module, a temperature and humidity sensor, an acceleration sensor, a distance measuring sensor and a radar module, and carry out short-distance communication, time synchronization, command sending and data receiving with the first slave machine 2 and the second slave machine 4 through the wireless communication module. The first slave machine 2 and the second slave machine 4 respectively monitor the swing, oscillation and hard point impact values of the contact line 9 and the carrier cable 12 caused by the influence of natural factors or the influence of a locomotive pantograph through built-in acceleration sensors, and respectively send the values to the first host machine 1 and the second host machine 3.

The first host 1 and the second host 3 respectively acquire an a value and a b value of the catenary compensator and the contact line compensator, an ambient temperature and humidity value, an arrival information value of the locomotive, a satellite data value and acceleration values sent by the first slave machine 2 and the second slave machine 4, and send the acceleration values to the cloud data analysis and processing platform through the wireless networking module, and the cloud data platform analyzes by using the data, sends the health condition of the contact line to the contact line maintenance mechanism in real time, and sends out early warning, alarming and fault information. The method and the device realize 24-hour all-weather monitoring of the state of the anchor section of the contact network and provide more timely and accurate information for the overhaul and maintenance work of the contact network.

The above description has described the basic principles and essential features of the invention and the advantages of the invention, it being clear that the invention is not limited to the details of the above exemplary implementation, such as the setting of the acquisition frequency for the device, but also that the invention can be implemented in other specific forms without departing from the principles and essential features of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a contact net anchor section on-line monitoring device, includes first host computer (1), second host computer (3), first from machine (2) and second from machine (4) characterized by: the first host (1) and the second host (3) are respectively arranged on the uppermost layers of the contact line compensator weight string (5) and the catenary compensator weight string (17), along with synchronous displacement of the first host (1) and the second host (3), the first host (1) and the second host (3) respectively collect and calculate the a value, the b value and the acceleration value of the contact line compensator and the catenary compensator, the temperature and humidity value of the environment and the arrival information value of the electric locomotive, the first slave (2) and the second slave (4) are respectively arranged on the contact line (9) and the catenary (12) to collect the acceleration value and are respectively in wireless communication with the first host (1) and the second host (3), the a value and the b value of the contact line compensator and the catenary compensator, the acceleration value, the temperature and humidity value of the environment and the arrival information value of the electric locomotive are respectively arranged on the first host (1) and the second host (3), and the first slave (2), And the acceleration value sent from the second slave machine (4) is sent to the cloud data analysis processing platform after being encoded and compressed.

2. The device of claim 1 for online monitoring of an anchor section of a catenary, wherein: the solar energy wireless monitoring system comprises a first host (1), a shell (24), a shell top cover (28), a non-metal material, a solar cell panel A (21), a built-in embedded control panel A (22), a micro-electromechanical acceleration sensor A (32), a satellite data receiving module (36), a wireless communication module A (31), a wireless networking module (35) and a lithium battery pack A (23), an external temperature and humidity sensor (27), a distance measuring sensor (26) and a radar module (20), wherein the shell (24) of the first host (1) is made of the metal material, and the shell top cover (28) is made of the non-metal material.

3. The device of claim 1 for online monitoring of an anchor section of a catenary, wherein: the slave machine shell (47) of the first slave machine (2) is made of a non-metal material, a solar cell panel B (45) is laid outside, and an embedded control panel B (40), a micro-electromechanical acceleration sensor B1 (43), a micro-electromechanical acceleration sensor B2 (44), a wireless communication module B (41) and a lithium battery pack B (42) are arranged inside.

4. The device for monitoring the anchor section of the overhead line system of claim 1, wherein: a distance measuring sensor (26) and a temperature and humidity sensor (27) of the first host (1) are externally fixed at the edge of a top cover (28) of the machine shell, and the distance measuring sensor (26) faces the base surface (16) to measure the distance.

5. The device for monitoring the anchor section of the overhead line system of claim 1, wherein: the first slave machine (2) is rigidly connected with the contact line (9), and the second slave machine (4) is rigidly connected with the catenary (12).

6. The device for monitoring the anchor section of the overhead line system of claim 1, wherein: the first host (1) is arranged at the uppermost end of a weight string (5) of the contact line compensator and is rigidly connected with the weight string, and the second host (3) is arranged at the uppermost end of a weight string (17) of the catenary compensator and is rigidly connected with the weight string.

7. The device for monitoring the anchor section of the overhead line system of claim 1, wherein: and a wireless networking module (35) is communicated with a cloud data analysis and processing platform to upload and issue data.

8. The device for monitoring the anchor section of the overhead line system of claim 1, wherein: the first host (1) and the first slave (2) are in wireless short-distance communication, and the second host (3) and the second slave (4) are in wireless short-distance communication.

9. The device for monitoring the anchor section of the overhead line system of claim 1, wherein: the first host (1) and the second host (3) receive satellite time, synchronize clocks of respective embedded control boards, send clock calibration information and calibrate the clocks of the embedded control boards of the first slave (2) and the second slave (4).