CN113859303B - Intelligent monitoring system and method for switch connecting pin - Google Patents
Intelligent monitoring system and method for switch connecting pin Download PDFInfo
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- CN113859303B CN113859303B CN202111056319.2A CN202111056319A CN113859303B CN 113859303 B CN113859303 B CN 113859303B CN 202111056319 A CN202111056319 A CN 202111056319A CN 113859303 B CN113859303 B CN 113859303B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000013480 data collection Methods 0.000 claims abstract description 27
- 230000005059 dormancy Effects 0.000 claims abstract description 20
- 230000009471 action Effects 0.000 claims abstract description 17
- 230000008054 signal transmission Effects 0.000 claims abstract description 7
- 230000001133 acceleration Effects 0.000 claims description 77
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 17
- 230000007958 sleep Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 8
- 230000002618 waking effect Effects 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 4
- 230000036541 health Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims 3
- 238000012937 correction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a switch connecting pin intelligent monitoring system and a monitoring method thereof, which are characterized in that a data collection module is used for collecting switch resistance data during switching action of a switch machine, and the data collection module is combined with the vibration parameter fitting correction of a train passing through the switch, a signal transmission module is used for wirelessly transmitting to a front end convergence layer and then is integrated into a monitoring system through an existing channel, a vibration generator is arranged for supplying energy to the system, a dormancy module is arranged for realizing autonomous awakening dormancy, and all electronic systems are integrated into a shell to form a connecting pin, so that the connecting pin can be directly replaced by the existing connecting pin.
Description
Technical Field
The invention belongs to the technical field of switch monitoring, and particularly relates to an intelligent switch connecting pin monitoring system and a monitoring method thereof.
Background
The close contact of the switch tongue is an important guarantee of driving safety. With the continuous increase of the development period and the running density of the railway entering the high-speed railway in China, the problems of arrangement of maintenance 'skylights' and maintenance personnel safety and the like are increasingly outstanding by adopting the traditional turnout maintenance method. The turnout state monitoring system realizes real-time monitoring of turnout dynamic information, timely discovers abnormality and alarms, and solves the turnout maintenance problem.
The turnout state monitoring system is used for avoiding or reducing faults of driving caused by the problems that turnout is squeezed, turnout gap adjustment does not reach the standard or a display rod is in a state of being open to move to cause a bayonet, a slide plate is provided with a foreign matter grinding card, the quantity of turnout oil is insufficient and the like, and for reducing the workload of turnout maintenance personnel and improving the operation benefit, the turnout state monitoring system timely and accurately grasps the actual working operation state of the turnout through resistance, gap and monitoring of various technical indexes of the turnout, and effectively completes the early warning function through real-time data analysis of the turnout, so that the efficiency of turnout state maintenance is truly improved. In the existing turnout state monitoring system, an external power supply, solar energy and other power supplies are provided with additional parts and wires which are arranged near a rail, so that the running of a train is affected, and the adopted visual monitoring and other methods can only achieve surface judgment.
The existing railway standard requirements are more strict, the energy supply mode of the traditional turnout state monitoring system does not meet the design requirements of the railway any more, the monitored data is lower in sensitivity, and the problems of no early warning time and the like basically need to be overcome by designing a new system.
Disclosure of Invention
In order to overcome the defects, the inventor of the invention continuously reforms and innovates through long-term exploration attempts and repeated experiments and efforts, and provides a switch connecting pin intelligent monitoring system which has the capabilities of convenient use, accurate and complete data, long-time real-time monitoring and the like, achieves early warning of a switch, accurately maintains the switch and ensures the driving safety of a train.
The technical scheme adopted by the invention for achieving the purpose is as follows: provides a switch connecting pin wisdom monitoring system, it includes following structure:
And a data collection module: the method is used for collecting turnout resistance data and vibration parameters of the train passing through the turnout when the switch machine is in switching action, and fitting and correcting the turnout resistance data by utilizing the vibration parameters so as to ensure the accuracy of the turnout resistance data;
And a signal transmission module: the turnout resistance data acquired by the data collection module is sent to the convergence equipment by utilizing the wireless signal, and the convergence equipment is then integrated into an upper computer of the monitoring system through the existing channel;
and a power supply module: the power supply module is used for supplying power to each module inside the connecting pin and comprises a vibration generator and an energy storage element;
Awakening a dormancy module: the wake-up and dormancy of each module are realized by monitoring the vibration acceleration and combining the output quantity of the vibration generator;
a shell: the data collection module, the signal transmission module, the power module and the wake-up dormancy module are integrated in the shell to form a complete connecting pin.
The intelligent monitoring system for the turnout connecting pin comprises the following further preferred technical scheme: the data collection module comprises a pin shaft type sensor and an acceleration sensor, wherein the pin shaft type sensor is used for collecting turnout resistance data, and the acceleration sensor is used for collecting vibration parameters.
The intelligent monitoring system for the turnout connecting pin comprises the following further preferred technical scheme: the awakening dormancy module comprises voltage monitoring equipment and an acceleration sensor, wherein the voltage monitoring equipment is connected with a vibration generator, and the data collection module is started when the voltage monitored by the voltage monitoring equipment reaches a preset value; the acceleration sensor is used for monitoring acceleration, and the data collection module is started when the acceleration reaches a preset value.
The intelligent monitoring system for the turnout connecting pin comprises the following further preferred technical scheme: the acceleration sensor is arranged alone or in common with the data collection module.
The intelligent monitoring system for the turnout connecting pin comprises the following further preferred technical scheme: the complete connecting pin replaces the existing connecting pin, the shell is made of stainless steel, the lowest shear yield force of the complete connecting pin is 65kN, the lowest shear strength of the complete connecting pin is 85kN, and the rated range of the complete connecting pin is 10kN.
An intelligent monitoring method for a switch connecting pin comprises the following steps:
(1) Waking up: in the sleep state, any of the following reaches a condition to wake up the system and begin monitoring:
An acceleration sensor is adopted as a front trigger: starting the whole monitoring system when the acceleration value reaches a starting threshold value and continuously reaches a preset time;
Adopts a vibration generator as a trigger: when the vibration generator resonates to generate voltage, waking up the whole monitoring system;
(2) Monitoring: the data collection module is used for collecting data, and measuring turnout resistance data for monitoring turnout switching operation states; the change/increase of acceleration/time is used for judging the passing state of the train;
(3) Judging the state: in the data acquisition process, the curve of acceleration/time or generator voltage/time goes down, and the passing of the train is judged.
Dormancy: when the acceleration/time or generator voltage/time curve is reduced to the initial state and there is no change in 15s, the system sleeps, waiting for the next wake-up.
The intelligent monitoring method for the turnout connecting pin comprises the following steps: the acceleration judgment standard for starting the whole monitoring system during dormancy is from 0 to 0.1m/s 2, and the acceleration judgment standard lasts for 2 s.
The intelligent monitoring method for the turnout connecting pin comprises the following steps: the judgment standard of the voltage of the vibration generator for starting the whole monitoring system during dormancy is 300mV-380mV, and the voltage lasts for 2 s.
The intelligent monitoring method for the turnout connecting pin comprises the following steps: when the acceleration sensor triggers the system to operate and the vibration generator does not generate electricity, the acceleration change caused by the operation of the switch machine is judged to start the whole system, and the monitoring data reflect the change condition of the switching resistance in the starting, working and ending operation states of the switch machine.
The intelligent monitoring method for the turnout connecting pin comprises the following steps: when the vibration generator triggers the system to operate and the vibration generator normally generates electricity and the duration is longer than 10s, the generated energy gradually reduces the value of the acceleration sensor to approach the initial state, the passing of the train is judged, and the switch locking state switching resistance condition is monitored when the train passes the switch.
The intelligent monitoring method for the turnout connecting pin comprises the following steps: the connecting pin collects conversion force so as to reflect the switch conversion resistance, and the upper computer analyzes the switch conversion resistance to correspond to the switch conversion action process so as to obtain the health state of the switch.
Compared with the prior art, the technical scheme of the invention has the following advantages/beneficial effects:
1. All electronic systems that set up are integrated to form the integral connection round pin in the casing, and the direct replacement current connecting pin uses can, simple to operate, convenient to use.
2. The vibration generator is arranged, the power generation is performed by utilizing the vibration of the passing train, the independent running can be realized by matching with the energy storage element, the running of the train can not be influenced, the railway design requirement of higher standards is met, the maintenance is basically not needed, and the damage is directly replaced.
3. And a sleep mechanism is arranged to realize autonomous awakening and sleep, so that the cruising is ensured to the greatest extent.
3. The two awakening modes are set, so that the complete running state of the turnout is ensured to be monitored, complete and high-precision theoretical data support is provided for maintenance, maintenance and state judgment of the turnout, the maintenance in advance is realized, the fault is removed, the service life of the turnout is prolonged, and the running safety of a train is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a switch connecting pin intelligent monitoring system according to the present invention.
Fig. 2 is a graph of acceleration of switch machine start for an intelligent monitoring method of switch connecting pins according to the present invention.
Fig. 3 is a graph of switching resistance data for starting a switch machine according to an intelligent monitoring method of a switch connecting pin of the present invention.
FIG. 4 is a graph of acceleration of train passing through a method for intelligent monitoring of switch connecting pins according to the present invention.
Fig. 5 is a graph of the switching resistance data for the passing of a train in an intelligent monitoring method of the switch connecting pin of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Accordingly, the detailed description of the embodiments of the invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in the following figures.
Examples:
as shown in fig. 1, a switch connecting pin intelligent monitoring system comprises the following structures:
And a data collection module: the method is used for collecting turnout resistance data and vibration parameters of the train passing through the turnout when the switch machine is in switching action, and fitting and correcting the turnout resistance data by utilizing the vibration parameters so as to ensure the accuracy of the turnout resistance data; the fitting correction is to correct turnout resistance data acquired by a sensor through the relation between vibration parameters and a time axis and mark a state group where the data are.
And a signal transmission module: the turnout resistance data acquired by the data collection module is sent to the convergence equipment by utilizing the wireless signal, and the convergence equipment is then integrated into an upper computer of the monitoring system through the existing channel;
and a power supply module: the power supply module is used for supplying power to each module inside the connecting pin and comprises a vibration generator and an energy storage element;
Awakening a dormancy module: the wake-up and dormancy of each module are realized by monitoring the vibration acceleration and combining the output quantity of the vibration generator;
a shell: the data collection module, the signal transmission module, the power module and the wake-up dormancy module are integrated in the shell to form a complete connecting pin.
The data collection module comprises a pin shaft type sensor and an acceleration sensor, wherein the pin shaft type sensor is used for collecting turnout resistance data, the acceleration sensor is used for collecting vibration parameters, and the data collection module utilizes the collected vibration parameters to fit and correct the turnout resistance data.
The awakening dormancy module comprises voltage monitoring equipment and an acceleration sensor, wherein the voltage monitoring equipment is connected with the vibration generator, and the data collection module is started when the voltage monitoring equipment monitors that the voltage of the vibration generator reaches a preset value; the acceleration sensor is used for monitoring acceleration, the data collection module is started when the acceleration reaches a preset value, and the acceleration sensor of the wake-up module is independently arranged or shared with the data collection module.
The complete connecting pin replaces the existing connecting pin, the shell is made of stainless steel, the lowest shear yield force of the complete connecting pin is 65kN, the lowest shear strength of the complete connecting pin is 85kN, and the rated range of the complete connecting pin is 10kN.
An intelligent monitoring method for a switch connecting pin comprises the following steps:
(1) Waking up: in the sleep state, any of the following reaches a condition to wake up the system and begin monitoring:
An acceleration sensor is adopted as a front trigger: starting the whole monitoring system when the acceleration value reaches a starting threshold value and continuously reaches a preset time;
Adopts a vibration generator as a trigger: when the vibration generator resonates to generate voltage, waking up the whole monitoring system;
(2) Monitoring: the data collection module is used for collecting data, and measuring turnout resistance data for monitoring turnout switching operation states; the change/increase of acceleration/time is used for judging the passing state of the train;
(3) Judging the state: in the data acquisition process, the curve of acceleration/time or generator voltage/time goes down, and the passing of the train is judged.
Dormancy: when the acceleration/time or generator voltage/time curve is reduced to the initial state and there is no change in 15s, the system sleeps, waiting for the next wake-up.
The acceleration judgment standard (starting threshold) for starting the whole monitoring system during dormancy is 0-0.1m/s 2 and lasts for 2 s.
The judgment standard (starting threshold) of the voltage of the vibration generator for starting the whole monitoring system during dormancy is 300mV-380mV and lasts for 2 s.
When the acceleration sensor triggers the system to operate and the vibration generator does not generate electricity, the acceleration change caused by the operation of the switch machine is judged to start the whole system, and the monitoring data reflect the change condition of the switching resistance in the starting, working and ending operation states of the switch machine.
Acceleration analysis of each process group of the switch machine running once:
1. When the motor generates vibration acceleration, the vibration acceleration is transmitted to the rod piece to be captured by the sensor; (first procedure group)
2. When the action rod is started to generate acceleration, the acceleration is transmitted to the rod piece to be captured by the sensor; (second procedure group)
3. The action of the action rod generates weak acceleration, and the process is represented by a lower acceleration level; (third procedure group)
4. When the instantaneous acceleration is generated during locking, a periodic peak value appears in the acceleration value; (fourth Process group)
5. When the locking of the inertial speed of the motor is completed, the acceleration value is at a lower level; (fifth procedure group)
The graph shown in fig. 2 is finally obtained, from which the specific situation when waking up the device by acceleration is known.
Conversion resistance analysis of the switch machine running once:
1. The motor starts to drive the oil pump, the conversion force is unchanged, and the action rod is not moved (0.5 s-1 s); (first procedure group)
2. The action rod starts to act to push the turnout action force (the conversion resistance linearly increases); (second procedure group)
3. The action rod acts until locking, the force value rises to a constant peak value, and the turnout is locked; (third procedure group)
4. Maintaining a locking state after locking, wherein a certain value of the force value position is unchanged; (fourth Process group)
5. The inertia speed of the locking completion motor is stable, and the locking completion force value is slightly reduced. (fifth procedure group)
The corresponding change in the resistance to actuation lever switching is shown in fig. 3.
When the vibration generator triggers the system to operate and the vibration generator normally generates electricity and the duration is longer than 10s, the generated energy gradually reduces the value of the acceleration sensor to approach the initial state, the passing of the train is judged, and the switch locking state switching resistance condition is monitored when the train passes the switch.
Acceleration analysis of the train once:
1. After the switch machine is in place, the acceleration is reduced to a lower level, the action is completed, the train does not pass through the middle neutral position; (first procedure group)
2. The train approaches to the resonance conduction of a turnout steel rail, and the steel rail conducts vibration to an acceleration sensor (curve line type growth); (second procedure group)
3. When the train passes through the turnout, the acceleration value reaches a peak value, the train is continued until the train passes through completely, and the acceleration value is maximum when the train passes through; (third procedure group)
4. The resonance is weakened when the train passes through, the acceleration gradually decreases to 0m/s 2, and the curve is in a linear descending trend; (fourth Process group)
5. The acceleration was reduced to 0m/s 2 for 30s and the system was dormant (entering calm phase) and no force was transferred. (fifth procedure group)
The graph shown in fig. 4 is finally obtained, from which the specific situation when waking up the device by acceleration is known.
Conversion resistance analysis for train passing once
1. When the train passes through, the turnout is locked, the conversion resistance is unchanged, the conversion force is unchanged, at the moment, the turnout works well, and the curve of the conversion resistance (constant) corresponds to the turnout;
2. If the switching resistance is monitored to be large in the process, the force value is increased from 0, and the defect is a turnout.
3. If the process detects that the switching resistance is smaller, the force value rises to a constant peak value, and the switch machine is locked, the turnout is squeezed, and the corresponding curve is the switching resistance (increasing).
4. Switching resistance fluctuation; (switch locked state is unhealthy).
As shown in fig. 5, the three lever changeover resistance change curves correspond to different switch states, respectively.
The connecting pin collects conversion force so as to reflect the switch conversion resistance, and the upper computer analyzes the switch conversion resistance to correspond to the switch conversion action process so as to obtain the health state of the switch.
Disease screening:
And comparing the operation curve graphs which are acquired subsequently with the normal curve form by taking the curve graphs shown in the figures 2-5 as the normal curve form, so as to know whether the turnout is in normal operation.
1. Start-up procedure set
1. The course action mechanism is started, and the trend of the acceleration-time (m/s 2 -t) and the conversion resistance-time (N-t) curves is determined.
2. The discrimination of the disease can analyze the problem point by judging the shape of the curve.
3. Any fluctuation or change reflected on the curve can be combined with the time to correspond to five processes for analyzing diseases.
4. By judging the degree of curve variation, the disease development stage can be judged.
2. Train passing process
1. The trend of the acceleration-time (m/s 2 -t) and the conversion resistance-time (N-t) curves is determined through a process action mechanism.
2. The acceleration-time (m/s 2 -t) curve chart in the process group is used as a reference table for reflecting the passing state of the train through the turnout, the passing state of the turnout is defined by comparing with the curve chart, and the corresponding transition resistance-time (N-t) curve chart can be used for judging the turnout state if abnormality occurs.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (8)
1. A switch connecting pin intelligent monitoring system is characterized by comprising the following structures:
And a data collection module: the method is used for collecting turnout resistance data and vibration parameters of the train passing through the turnout when the switch machine is in switching action, and fitting and correcting the turnout resistance data by utilizing the vibration parameters so as to ensure the accuracy of the turnout resistance data;
And a signal transmission module: the turnout resistance data acquired by the data collection module is sent to the convergence equipment by utilizing the wireless signal, and the convergence equipment is then integrated into an upper computer of the monitoring system through the existing channel;
and a power supply module: the power supply module is used for supplying power to each module inside the connecting pin and comprises a vibration generator and an energy storage element;
Awakening a dormancy module: the vibration acceleration is monitored through the acceleration sensor, the output quantity of the vibration generator is monitored to wake up and sleep each module, when the acceleration sensor triggers the system to operate and the vibration generator does not generate electricity, the acceleration change caused by the operation of the switch machine is judged to start the whole system, and at the moment, the monitoring data reflect the change condition of conversion resistance in the starting, working and ending operation states of the switch machine; when the vibration generator triggers the system to operate and the vibration generator normally generates electricity and the duration time is longer than 10 seconds, the generated energy gradually reduces the value of the acceleration sensor to approach the initial state, the passing of the train is judged, and the process monitors the switch locking state switching resistance condition when the train passes the switch;
a shell: the data collection module, the signal transmission module, the power module and the wake-up dormancy module are integrated in the shell to form a complete connecting pin.
2. The intelligent monitoring system of a switch connecting pin according to claim 1, wherein the data collection module comprises a pin-type sensor and an acceleration sensor, the pin-type sensor is used for collecting switch resistance data, and the acceleration sensor is used for collecting vibration parameters.
3. The intelligent monitoring system for the turnout connecting pin according to claim 1, wherein the wake-up dormancy module comprises a voltage monitoring device and an acceleration sensor, the voltage monitoring device is connected with a vibration generator, and the data collection module is started when the voltage monitored by the voltage monitoring device reaches a preset value; the acceleration sensor is used for monitoring acceleration, and the data collection module is started when the acceleration reaches a preset value.
4. A switch connecting pin intelligent monitoring system according to claim 3, wherein the acceleration sensor is provided separately or in common with the data collection module.
5. The intelligent monitoring system for railroad switch connecting pins according to claim 1, wherein the complete connecting pin is used in place of the existing connecting pin, the housing is made of stainless steel, the complete connecting pin has a minimum shear yield force of 65kN, a minimum shear strength of 85kN, and a rated range of 10kN.
6. The intelligent monitoring method for the switch connecting pin is characterized by comprising the following steps:
(1) Waking up: in the sleep state, any of the following reaches a condition to wake up the system and begin monitoring:
An acceleration sensor is adopted as a front trigger: when the acceleration value reaches a starting threshold value and continuously reaches a preset time, starting the whole monitoring system, wherein the acceleration judgment standard is 0-0.1m/s 2, and when the acceleration sensor triggers the system to operate and the vibration generator does not generate electricity, judging that the acceleration change caused by the operation of the switch machine starts the whole system, and at the moment, the monitoring data reflect the change condition of the conversion resistance in the starting, working and ending operation states of the switch machine;
Adopts a vibration generator as a trigger: when the vibration generator resonates to generate voltage, the whole monitoring system is awakened, the vibration generator triggers the system to operate, after the vibration generator normally generates electricity and the duration time is longer than 10s, the generated energy gradually reduces the value of the acceleration sensor to approach an initial state, the passing of the train is judged, and the switching resistance condition of the turnout locking state when the train passes the turnout is monitored in the process;
Monitoring: the data collection module is used for collecting data, and measuring turnout resistance data for monitoring turnout switching operation states; the change/increase of acceleration/time is used for judging the passing state of the train;
judging the state: in the data acquisition process, the acceleration/time or the generator voltage/time curve goes down, and the passing distance of the train is judged;
Dormancy: when the acceleration/time or generator voltage/time curve is reduced to the initial state and there is no change in 15s, the system sleeps, waiting for the next wake-up.
7. The intelligent monitoring method of switch connecting pin according to claim 6, wherein the voltage of the vibration generator for starting the whole monitoring system during sleep is determined to be 300mV-380mV for 2 s.
8. The intelligent monitoring method for switch connecting pins according to claim 6, wherein the connecting pins collect switching force to reflect switch switching resistance, and the switch health state is obtained by analyzing the switch switching resistance corresponding to the switch switching action process through the upper computer.
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| CN202111056319.2A CN113859303B (en) | 2021-09-09 | 2021-09-09 | Intelligent monitoring system and method for switch connecting pin |
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| CN202111056319.2A CN113859303B (en) | 2021-09-09 | 2021-09-09 | Intelligent monitoring system and method for switch connecting pin |
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