CN110608773A - Contact net compensation device state monitoring method - Google Patents
Contact net compensation device state monitoring method Download PDFInfo
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- CN110608773A CN110608773A CN201910993284.1A CN201910993284A CN110608773A CN 110608773 A CN110608773 A CN 110608773A CN 201910993284 A CN201910993284 A CN 201910993284A CN 110608773 A CN110608773 A CN 110608773A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/26—Compensation means for variation in length
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a contact net compensation device state monitoring method, which comprises the following steps of S1: the ratchet state monitoring node sends the detected information to the state monitoring gateway through wireless communication, and the step S2: the state monitoring gateway calculates and determines the working state of the catenary compensation device according to the information detected by the ratchet state monitoring node, and the step S3 is that: and the state monitoring gateway sends the working state of the contact net compensation device to the background system through the mobile communication network. The invention discloses a method for monitoring the state of a contact net compensation device, which can effectively monitor the working state of the contact net compensation device.
Description
Technical Field
The invention belongs to the technical field of railway contact networks, and particularly relates to a method for monitoring the state of a contact network compensation device.
Background
The publication number is: CN107300875A, entitled intelligent online monitoring system for high-speed railway contact network compensation, the technical scheme thereof discloses a fault online monitoring system which is provided with a ratchet wheel compensation device (1) and a fault online monitoring device (2) fixed between spokes of the ratchet wheel compensation device (1) through a clamp, wherein the fault online monitoring device (2) is provided with a temperature and humidity sensor (3) for measuring the ambient temperature and humidity of the ratchet wheel compensation device (1), an angle sensor (4) for measuring the rotation angle and the installation verticality of the ratchet wheel compensation device (1), a singlechip (5) for storing and calculating the measurement data of the temperature and humidity sensor (3) and the angle sensor (4) and a wireless communication module (6) for sending alarm information to a background server;
the whole monitoring device is arranged on the ratchet wheel device, the equipment volume is large, and each monitoring device can only monitor one ratchet wheel device; the adopted angle sensor has the advantages of complex structure, large volume, high cost and low accuracy.
The publication number is: 107415775A, the subject name is the invention patent of a device for monitoring the position of a falling weight of a contact net system, the technical proposal of which discloses that the device comprises a shell (1) which is hoisted on a bracket (3) above a falling weight string (2); a displacement sensor (6), a battery, a built-in antenna, a communication circuit and an acquisition circuit are arranged in the shell (1); the displacement sensor (6) is over against the top surface of the weight string (2).
The invention patent adopts a laser ranging mode, has high cost and high power consumption (the real-time performance is limited), and can be influenced by the environment.
In summary, there is a need for an improved method for monitoring the condition of a catenary compensation device.
Disclosure of Invention
The invention mainly aims to provide a contact net compensation device state monitoring method which has the advantages of high safety performance, high precision and low cost.
Another object of the present invention is to provide a method for monitoring the state of a compensation device of a catenary, which can effectively monitor the working state of the compensation device of the catenary.
In order to achieve the aim, the invention discloses a contact net compensation device state monitoring method, which comprises the following steps:
step S1: the ratchet wheel state monitoring node sends the detected information to the state monitoring gateway through wireless communication;
step S2: the state monitoring gateway calculates and judges the working state of the catenary compensation device according to the information detected by the ratchet state monitoring node;
step S3: and the state monitoring gateway sends the working state of the contact net compensation device to the background system through the mobile communication network.
A further preferred embodiment of the above-described embodiment, step S1 is specifically implemented as the following steps:
step S1.1: the first ratchet state monitoring node is arranged on the contact wire ratchet device;
step S1.2: the second ratchet wheel state monitoring node is arranged on the carrier cable ratchet wheel device;
step S1.3: the first ratchet wheel state monitoring node sends the detected acceleration value and temperature value to a state monitoring gateway through wireless communication;
step S1.4: and the second ratchet wheel state monitoring node sends the detected acceleration value and temperature value to the state monitoring gateway through wireless communication.
As a further preferable embodiment of the above technical means, step S2 is specifically implemented as the following steps:
step S2.1: the state monitoring gateway calculates the rotation angle of the contact wire ratchet device through the acceleration value sent by the first ratchet state monitoring node;
step S2.2: the state monitoring gateway calculates the rotation angle of the carrier cable ratchet device through the acceleration value sent by the second ratchet state monitoring node;
step S2.3: the state monitoring gateway calculates the variation of b value of the balance weight through the rotating angle and the diameter of the contact wire ratchet device;
step S2.4: the state monitoring gateway calculates the variation of the b value of the balance weight through the rotating angle and the diameter of the carrier cable ratchet device;
step S2.5: the state monitoring gateway respectively calculates theoretical b values of balance weights of the contact wire ratchet device and the carrier cable ratchet device and actual b values of the contact wire ratchet device and the carrier cable ratchet device;
step S2.6: and the state monitoring gateway judges the working state of the overhead line system compensation device through data comparison and trend analysis.
As a more preferable mode of the above mode, the b value is a distance from the bottom surface of the weight to the ground or the foundation surface.
As a further preferable technical solution of the above technical solution, the state monitoring gateway is provided with an upper pointer and a lower pointer, the upper pointer and the lower pointer are located at diagonally opposite positions, the upper pointer is used for indicating a b-value state of the catenary ratchet device, and the lower pointer is used for indicating a b-value state of the contact line ratchet device.
As a further preferable technical solution of the above technical solution, when the b-value states of the carrier cable ratchet device and the contact line ratchet device are normal, the upper pointer and the lower pointer are at diagonal positions; when the actual b values of the carrier cable ratchet device and the contact line ratchet device are respectively smaller than the theoretical b value, the upper pointer and the lower pointer deflect positively; when the actual b values of the carrier cable ratchet device and the contact wire ratchet device are respectively larger than the theoretical b value, the upper pointer and the lower pointer deflect negatively.
As a further preferable technical solution of the above technical solution, a calculation formula of the deflection angle of the upper pointer and the lower pointer is:
A＝B*(C/D)；
wherein a represents a deflection angle;
b represents the maximum deflection angle;
c represents the deviation value of the b value, namely the actual b value minus the theoretical b value;
d denotes an indication range.
As a more preferable embodiment of the above-mentioned technical means, the calculation formula of the rotation angle is:
AX/AY＝(1g*sinθ)/(1g*cosθ)＝tanθ；
θ＝tan-1(AX/AY)；
wherein A isXRepresents an acceleration value of the X axis;
AYrepresents acceleration values of the Y axis;
θ represents the rotation angle.
As a further preferable technical solution of the above technical solution, the state monitoring gateway calculates the installation perpendicularity of the contact wire ratchet device by using the acceleration value sent by the first ratchet state monitoring node; and the state monitoring gateway calculates the mounting verticality of the carrier cable ratchet device through the acceleration value sent by the second ratchet state monitoring node.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
In preferred embodiments of the present invention, those skilled in the art will note that the messenger ratchet, contact wire ratchet, etc. to which the present invention relates may be considered prior art.
Preferred embodiments.
The invention discloses a contact net compensation device state monitoring method, which comprises the following steps:
step S1: the ratchet wheel state monitoring nodes (including a first ratchet wheel state monitoring node and a second ratchet wheel state monitoring node) send the detected information to the state monitoring gateway through wireless communication;
step S2: the state monitoring gateway calculates and judges the working state of the catenary compensation device according to the information detected by the ratchet state monitoring node;
step S3: and the state monitoring gateway sends the working state of the contact net compensation device to a background system through a mobile communication network (or optical fiber or cable).
Preferably, the ratchet state monitoring node comprises a three-axis acceleration sensor, a temperature sensor, a battery, a transmitting and receiving integrated circuit and a control circuit, and has the following functions:
1. monitoring three-axis gravitational acceleration (X-axis, Y-axis, Z-axis) of the installation position;
2. monitoring the temperature of the mounting location;
3. the system is characterized by being designed with ultra-low power consumption (low-power consumption devices comprise a microcontroller, an acceleration sensor and a temperature sensor; low-power consumption design comprises intermittent work, low-power consumption wireless communication and the like), long in service life and long in service life, and being powered by a high-capacity battery;
4. based on wireless sensor network technology and wireless electrical connection, the wireless sensor network system is free of wiring, simple in structure and easy to install and use;
5. the structure of the ratchet device (comprising a contact wire ratchet device and a carrier cable ratchet device) is not damaged after installation, and the normal operation of the ratchet is not influenced;
6. the full-sealed waterproof structure (the antenna is built in), the size is small (the ratchet wheel device is adaptive to various sizes), the working temperature range is wide (-40 ℃ -85 ℃), and the environmental suitability is strong.
It is worth mentioning that the state monitoring gateway and the ratchet state monitoring node keep wireless connection (a specific node is configured in the state monitoring gateway, and the state monitoring gateway manages the work of the ratchet state monitoring node, including allocating a dedicated data channel, allocating a work gap and the like) and acquires acceleration data, temperature data, battery power and the like of the ratchet state monitoring node.
Specifically, step S1 is implemented as the following steps:
step S1.1: the first ratchet state monitoring node is arranged on the contact wire ratchet device;
step S1.2: the second ratchet wheel state monitoring node is arranged on the carrier cable ratchet wheel device;
step S1.3: the first ratchet wheel state monitoring node sends the detected acceleration value and temperature value to a state monitoring gateway through wireless communication;
step S1.4: and the second ratchet wheel state monitoring node sends the detected acceleration value and temperature value to the state monitoring gateway through wireless communication.
More specifically, step S2 is specifically implemented as the following steps:
step S2.1: the state monitoring gateway calculates the rotation angle of the contact wire ratchet device through the acceleration value sent by the first ratchet state monitoring node;
step S2.2: the state monitoring gateway calculates the rotation angle of the carrier cable ratchet device through the acceleration value sent by the second ratchet state monitoring node;
step S2.3: the state monitoring gateway calculates the variation of b value of the balance weight through the rotating angle and the diameter of the contact wire ratchet device;
step S2.4: the state monitoring gateway calculates the variation of the b value of the balance weight through the rotating angle and the diameter of the carrier cable ratchet device;
step S2.5: respectively calculating theoretical b values of balance weights of a contact wire ratchet device and a balance weight of a carrier wire ratchet device and actual b values of the contact wire ratchet device and the carrier wire ratchet device by a state monitoring gateway (comprehensive environment temperature data and carrier wire/contact wire linear expansion coefficient (unit temperature balance weight displacement variation));
step S2.6: the state monitoring gateway (faces the train coming direction and is convenient for the overhead line system safety inspection device to collect image or video data) judges the working state of the overhead line system compensation device through data comparison and trend analysis.
Preferably, the state monitoring gateway is powered by solar energy or other external power sources, and the storage battery is preferably a lithium titanate battery.
Further, the value b is the distance from the bottom surface of the weight to the ground or the base surface.
Furthermore, the state monitoring gateway is provided with an upper pointer and a lower pointer, the upper pointer and the lower pointer are in diagonal positions, the upper pointer is used for indicating the b value state of the carrier cable ratchet device, and the lower pointer is used for indicating the b value state of the contact line ratchet device.
It is worth mentioning that when the b value states of the carrier cable ratchet device and the contact wire ratchet device are normal (namely, the upper pointer and the lower pointer are overlapped), the upper pointer and the lower pointer are positioned at the diagonal positions; when the actual b values of the carrier cable ratchet device and the contact wire ratchet device are respectively smaller than the theoretical b value (namely the actual position of the weight is higher than the theoretical position), the upper pointer and the lower pointer deflect positively (deflect towards the upper left corner); when the actual b values of the carrier cable ratchet device and the contact wire ratchet device are respectively larger than the theoretical b value (namely the actual position of the weight is lower than the theoretical position), the upper pointer and the lower pointer deflect negatively (deflect towards the lower right corner).
Preferably, the calculation formula of the deflection angle of the upper pointer and the lower pointer is:
A＝B*(C/D)；
wherein a represents a deflection angle;
b denotes the maximum deflection angle (plus or minus 45 °);
c represents the deviation value of the b value, namely the actual b value minus the theoretical b value;
d denotes an indication range (settable).
For example, the indication range is set to plus or minus 500mm, the pointer (including the upper pointer and the lower pointer) is positively deflected by 4.5 ° when the b-value bias value is plus 50mm, the pointer is negatively deflected by 9 ° when the b-value bias value is minus 100mm, and the pointer will be at the maximum deflection angle (plus or minus 45 °) when the b-value bias value exceeds the plus or minus 500mm range.
Preferably, the calculation formula of the rotation angle is:
AX/AY＝(1g*sinθ)/(1g*cosθ)＝tanθ；
θ＝tan-1(AX/AY)；
wherein A isXRepresents an acceleration value of the X axis;
AYrepresents acceleration values of the Y axis;
θ represents the rotation angle.
(14bit sensors can achieve 0.1 resolution, for example, with a 550mm diameter ratchet, 0.5 mm.)
Preferably, the state monitoring gateway calculates the installation verticality of the contact line ratchet device through an acceleration value sent by the first ratchet state monitoring node; and the state monitoring gateway calculates the mounting verticality of the carrier cable ratchet device through the acceleration value sent by the second ratchet state monitoring node.
Preferably, the communication mode between the state monitoring gateway and the ratchet state monitoring node includes:
free collision mode: the time and the period of data sent by the ratchet wheel state monitoring node are not managed by the state monitoring gateway, and the gateway is always in a passive receiving mode with higher power consumption;
and (3) gateway management mode: the state monitoring gateway distributes working gaps to all ratchet state monitoring nodes, and the gateway receiver and the ratchet state monitoring nodes only work in limited time slots.
A first embodiment.
The invention discloses a contact net compensation device state monitoring method, which comprises the following steps:
step S1: the ratchet wheel state monitoring nodes (including a first ratchet wheel state monitoring node and a second ratchet wheel state monitoring node) send the detected information to the state monitoring gateway through wireless communication;
step S2: the state monitoring gateway calculates and judges the working state of the catenary compensation device according to the information detected by the ratchet state monitoring node;
step S3: and the state monitoring gateway sends the working state of the contact net compensation device to a background system through a mobile communication network (or optical fiber or cable).
Preferably, the ratchet state monitoring node comprises a three-axis acceleration sensor, a temperature sensor, a battery, a transmitting and receiving integrated circuit and a control circuit, and has the following functions:
1. monitoring three-axis gravitational acceleration (X-axis, Y-axis, Z-axis) of the installation position;
2. monitoring the temperature of the mounting location;
3. the system is characterized by being designed with ultra-low power consumption (low-power consumption devices comprise a microcontroller, an acceleration sensor and a temperature sensor; low-power consumption design comprises intermittent work, low-power consumption wireless communication and the like), long in service life and long in service life, and being powered by a high-capacity battery;
4. based on wireless sensor network technology and wireless electrical connection, the wireless sensor network system is free of wiring, simple in structure and easy to install and use;
5. the structure of the ratchet device (comprising a contact wire ratchet device and a carrier cable ratchet device) is not damaged after installation, and the normal operation of the ratchet is not influenced;
6. the full-sealed waterproof structure (the antenna is built in), the size is small (the ratchet wheel device is adaptive to various sizes), the working temperature range is wide (-40 ℃ -85 ℃), and the environmental suitability is strong.
It is worth mentioning that the state monitoring gateway and the ratchet state monitoring node keep wireless connection (a specific node is configured in the state monitoring gateway, and the state monitoring gateway manages the work of the ratchet state monitoring node, including allocating a dedicated data channel, allocating a work gap and the like) and acquires acceleration data, temperature data, battery power and the like of the ratchet state monitoring node.
Specifically, step S1 is implemented as the following steps:
step S1.1: the first ratchet state monitoring node is arranged on the contact wire ratchet device;
step S1.2: the second ratchet wheel state monitoring node is arranged on the carrier cable ratchet wheel device;
step S1.3: the first ratchet wheel state monitoring node sends the detected acceleration value and temperature value to a state monitoring gateway through wireless communication;
step S1.4: and the second ratchet wheel state monitoring node sends the detected acceleration value and temperature value to the state monitoring gateway through wireless communication.
More specifically, step S2 is specifically implemented as the following steps:
step S2.1: the state monitoring gateway calculates the rotation angle of the contact wire ratchet device through the acceleration value sent by the first ratchet state monitoring node;
step S2.2: the state monitoring gateway calculates the rotation angle of the carrier cable ratchet device through the acceleration value sent by the second ratchet state monitoring node;
step S2.3: the state monitoring gateway calculates the variation of the a value of the balance weight through the rotating angle and the diameter of the contact wire ratchet device;
step S2.4: the state monitoring gateway calculates the variation of the a value of the balance weight through the rotating angle and the diameter of the carrier cable ratchet device;
step S2.5: respectively calculating theoretical a values of balance weights of a contact wire ratchet device and a carrier wire ratchet device and actual a values of the contact wire ratchet device and the carrier wire ratchet device by a state monitoring gateway (integrating environmental temperature data and carrier cable/contact wire linear expansion coefficient (unit temperature balance displacement variation));
step S2.6: the state monitoring gateway (faces the train coming direction and is convenient for the overhead line system safety inspection device to collect image or video data) judges the working state of the overhead line system compensation device through data comparison and trend analysis.
Preferably, the state monitoring gateway is powered by solar energy or other external power sources, and the storage battery is preferably a lithium titanate battery.
Further, the value a is the distance from the center of the pendant earring hole to the lower edge of a pulley of a contact net compensation device (fixed).
Furthermore, the state monitoring gateway is provided with an upper pointer and a lower pointer, the upper pointer and the lower pointer are in diagonal positions, the upper pointer is used for indicating the a value state of the carrier cable ratchet device, and the lower pointer is used for indicating the a value state of the contact wire ratchet device.
It is worth mentioning that when the a value state of the carrier cable ratchet device and the contact wire ratchet device is normal (namely the upper pointer and the lower pointer are overlapped), the upper pointer and the lower pointer are positioned at the diagonal position; when the actual a values of the carrier cable ratchet device and the contact wire ratchet device are respectively smaller than the theoretical a value (namely the actual position of the weight is higher than the theoretical position), the upper pointer and the lower pointer deflect positively (deflect towards the upper left corner); when the actual a values of the carrier cable ratchet device and the contact wire ratchet device are respectively larger than the theoretical a value (namely the actual position of the weight is lower than the theoretical position), the upper pointer and the lower pointer deflect negatively (deflect towards the lower right corner).
Preferably, the calculation formula of the deflection angle of the upper pointer and the lower pointer is:
A＝B*(C/D)；
wherein a represents a deflection angle;
b denotes the maximum deflection angle (plus or minus 45 °);
c represents the deviation value of the value a, namely the actual value a is subtracted by the theoretical value a;
d denotes an indication range (settable).
Preferably, the calculation formula of the rotation angle is:
AX/AY＝(1g*sinθ)/(1g*cosθ)＝tanθ；
θ＝tan-1(AX/AY)；
wherein A isXRepresents an acceleration value of the X axis;
AYrepresents acceleration values of the Y axis;
θ represents the rotation angle.
(14bit sensors can achieve 0.1 resolution, for example, with a 550mm diameter ratchet, 0.5 mm.)
Preferably, the state monitoring gateway calculates the installation verticality of the contact line ratchet device through an acceleration value sent by the first ratchet state monitoring node; and the state monitoring gateway calculates the mounting verticality of the carrier cable ratchet device through the acceleration value sent by the second ratchet state monitoring node.
Preferably, the communication mode between the state monitoring gateway and the ratchet state monitoring node includes:
free collision mode: the time and the period of data sent by the ratchet wheel state monitoring node are not managed by the state monitoring gateway, and the gateway is always in a passive receiving mode with higher power consumption;
and (3) gateway management mode: the state monitoring gateway distributes working gaps to all ratchet state monitoring nodes, and the gateway receiver and the ratchet state monitoring nodes only work in limited time slots.
It should be noted that the technical features of the carrier cable ratchet device, the contact wire ratchet device, etc. related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode of the technical features may be conventional choices in the field, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.
It will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.
Claims (7)
1. A contact net compensation device state monitoring method is characterized by comprising the following steps:
step S1: the ratchet wheel state monitoring node sends the detected information to the state monitoring gateway through wireless communication;
step S2: the state monitoring gateway calculates and judges the working state of the catenary compensation device according to the information detected by the ratchet state monitoring node;
step S3: and the state monitoring gateway sends the working state of the contact net compensation device to the background system through the mobile communication network.
2. The method for monitoring the state of the catenary compensation device according to claim 1, wherein the step S1 is implemented as the following steps:
step S1.1: the first ratchet state monitoring node is arranged on the contact wire ratchet device;
step S1.2: the second ratchet wheel state monitoring node is arranged on the carrier cable ratchet wheel device;
step S1.3: the first ratchet wheel state monitoring node sends the detected acceleration value and temperature value to a state monitoring gateway through wireless communication;
step S1.4: and the second ratchet wheel state monitoring node sends the detected acceleration value and temperature value to the state monitoring gateway through wireless communication.
3. The method for monitoring the state of the catenary compensation device according to claim 2, wherein the step S2 is implemented as the following steps:
step S2.1: the state monitoring gateway calculates the rotation angle of the contact wire ratchet device through the acceleration value sent by the first ratchet state monitoring node;
step S2.2: the state monitoring gateway calculates the rotation angle of the carrier cable ratchet device through the acceleration value sent by the second ratchet state monitoring node;
step S2.3: the state monitoring gateway calculates the variation of b value of the balance weight through the rotating angle and the diameter of the contact wire ratchet device;
step S2.4: the state monitoring gateway calculates the variation of the b value of the balance weight through the rotating angle and the diameter of the carrier cable ratchet device;
step S2.5: the state monitoring gateway respectively calculates theoretical b values of balance weights of the contact wire ratchet device and the carrier cable ratchet device and actual b values of the contact wire ratchet device and the carrier cable ratchet device;
step S2.6: and the state monitoring gateway judges the working state of the overhead line system compensation device through data comparison and trend analysis.
4. The method for monitoring the state of the contact line compensation device according to claim 3, wherein the state monitoring gateway is provided with an upper pointer and a lower pointer, the upper pointer and the lower pointer are in diagonal positions, the upper pointer is used for indicating the b-value state of the catenary ratchet device, and the lower pointer is used for indicating the b-value state of the contact line ratchet device.
5. The method for monitoring the state of the contact line compensation device according to claim 3, wherein when the b value states of the catenary ratchet device and the contact line ratchet device are normal, the upper pointer and the lower pointer are at diagonal positions; when the actual b values of the carrier cable ratchet device and the contact line ratchet device are respectively smaller than the theoretical b value, the upper pointer and the lower pointer deflect positively; when the actual b values of the carrier cable ratchet device and the contact wire ratchet device are respectively larger than the theoretical b value, the upper pointer and the lower pointer deflect negatively.
6. The method for monitoring the state of the contact net compensation device according to claim 5, wherein the calculation formula of the deflection angle of the upper pointer and the lower pointer is as follows:
A＝B*(C/D)；
wherein a represents a deflection angle;
b represents the maximum deflection angle;
c represents the deviation value of the b value, namely the actual b value minus the theoretical b value;
d denotes an indication range.
7. The method for monitoring the state of the catenary compensation device according to claim 3, wherein the calculation formula of the rotation angle is as follows:
AX/AY＝(1g*sinθ)/(1g*cosθ)＝tanθ；
θ＝tan-1(AX/AY)；
wherein A isXRepresents an acceleration value of the X axis;
AYrepresents acceleration values of the Y axis;
θ represents the rotation angle.
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| CN111675066A (en) * | 2020-07-07 | 2020-09-18 | 广东卓梅尼技术股份有限公司 | Elevator compensating rope tensioning device fault determination method and system based on laser ranging |
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| CN107425607A (en) * | 2017-07-23 | 2017-12-01 | 浙江维思无线网络技术有限公司 | A kind of contact net state identification method and device |
| CN107499187A (en) * | 2017-09-05 | 2017-12-22 | 中铁第勘察设计院集团有限公司 | Contact net system ratchet angles monitoring device |
| CN207301235U (en) * | 2017-09-05 | 2018-05-01 | 中铁第一勘察设计院集团有限公司 | A kind of contact net on-line monitoring system |
| CN208630405U (en) * | 2018-05-28 | 2019-03-22 | 成都素寺图科技有限公司 | A kind of monitoring contact line compensation falls the device for the height change that sticks together |
| CN110196032A (en) * | 2019-07-11 | 2019-09-03 | 南京普泰德电气科技有限公司 | A kind of railway contact line ratchet compensating device a (b) value measurement method and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675066A (en) * | 2020-07-07 | 2020-09-18 | 广东卓梅尼技术股份有限公司 | Elevator compensating rope tensioning device fault determination method and system based on laser ranging |
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| CN110608773B (en) | 2021-06-29 |
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Denomination of invention: A Method for Monitoring the Status of Catenary Compensation Devices Effective date of registration: 20230815 Granted publication date: 20210629 Pledgee: Bank of Jiaxing science and technology branch of Limited by Share Ltd. Pledgor: ZHEJIANG WIRELESS NETWORK TECHNOLOGY Ltd. Registration number: Y2023980052235 |
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