CN113358089A - Device, method and system for detecting state of railway sound insulation barrier - Google Patents
Device, method and system for detecting state of railway sound insulation barrier Download PDFInfo
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- CN113358089A CN113358089A CN202110764076.1A CN202110764076A CN113358089A CN 113358089 A CN113358089 A CN 113358089A CN 202110764076 A CN202110764076 A CN 202110764076A CN 113358089 A CN113358089 A CN 113358089A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
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- G—PHYSICS
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- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
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Abstract
The utility model provides a railway sound insulation barrier state detection device, includes: the detection device detects the position and/or the angle of the railway sound insulation barrier; data processing means for receiving position and/or angle signals from the sensing means; the receiving and sending device receives the data processed by the data processing device and sends the data to the external equipment; and the power supply device is used for supplying power to the detection device, the data processing device and the receiving and sending device, wherein the detection device detects the current position of the railway sound-proof barrier, so that whether the position of the railway sound-proof barrier changes or not can be judged according to the detected current position, and the state of the railway sound-proof barrier is further judged.
Description
Technical Field
The invention relates to a device, a method and a system for detecting the state of a railway sound insulation barrier.
Background
In order to suppress noise generated by railways to residents around and to protect trains running in railway lines, it is increasingly common to provide sound-proof barriers on railway tracks. The current detection aiming at the railway sound insulation barrier only stays on the mechanical property detection, such as the mechanical property detection which is not installed on a road and the mechanical property detection which is installed on the road. For example, chinese patent application CN104007018A mainly discloses a method and a system for testing mechanical properties of an existing sound barrier on a road. The detection is only a mechanical performance test which is performed according with relevant regulations when the structural technical parameters of the sound barrier are met.
In the daily use process of the sound barrier, the sound barrier may be damaged, for example, toppling, local swinging, loosening of the main body frame and the like may occur due to the inward stress deformation of the barrier and the influence of vibration on the barrier caused by the negative pressure change in the barrier caused by the passing of a train. However, the prior art does not disclose a device and a method for detecting the state of the railway sound-proof barrier in the daily use process, and the device and the method have great and practical significance for effectively avoiding the accidental toppling of the sound-proof barrier and predicting the occurrence of danger in advance.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present invention provides a railway sound insulation barrier state detection apparatus, method and system.
In order to achieve the purpose, the invention adopts the following technical scheme: a railway sound insulation barrier state detection device, characterized by comprising:
a detection device that detects a position and/or an angle of the railway sound barrier;
a data processing device that receives position and/or angle signals from the detection device;
a receiving and sending device which receives the data processed by the data processing device and sends the data to an external device; and
a power supply device for supplying power to the detection device, the data processing device and the receiving and sending device,
the detection device detects the current position of the railway sound insulation barrier, so that whether the position of the railway sound insulation barrier changes or not can be judged according to the detected current position, and the state of the railway sound insulation barrier is further judged.
Preferably, the railway sound barrier state further comprises a housing which accommodates the detection device, the data processing device, the receiving and transmitting device and the power supply device, and which is provided so as to be fixedly mountable to a surface of the railway sound barrier.
Preferably, a magnet is arranged on the casing so that the casing can be magnetically attracted to the surface of the railway sound insulation barrier; or
The shell is provided with a magnet, and the shell is adsorbed to the surface of the railway sound insulation barrier through the interaction of the magnet and the magnet arranged on the surface of the railway sound insulation barrier.
Preferably, the power supply device is a solar panel, and the housing includes an inclined surface, the solar panel is disposed on the inclined surface, and a side surface adjacent to the inclined surface is provided with a magnet so as to be attracted to a surface of the railway sound barrier.
Preferably, the device further comprises a monitoring device for monitoring the working state parameter of the detection device.
Preferably, the monitoring device includes a power supply detection device, a temperature detection device and a communication state detection device, the power supply detection device is used for detecting the power supply state of the power supply device, the temperature detection device is used for detecting the ambient temperature, and the communication state detection device is used for detecting the communication state of the receiving and sending device.
Preferably, the power supply device comprises a solar panel and a rechargeable battery.
Preferably, the detection device employs an acceleration sensor.
Preferably, the acceleration sensor employs an MPU6050 integrated 6-axis motion processing component.
Preferably, the receiving and sending device comprises a GPS or Beidou positioning module, a 4G or 5G communication module and an antenna module.
Preferably, the detection device, the receiving and sending device and the data processing device are arranged on a circuit board.
Preferably, the circuit board is disposed on a bottom surface of the case opposite to the inclined surface of the top.
The invention also provides a method for detecting the state of the railway sound insulation barrier, which comprises the following steps:
acquiring Euler angle data of the railway sound barrier through an acceleration sensor fixedly arranged on the railway sound barrier;
comparing the obtained Euler angle data with a preset threshold range;
if the Euler angle data change is within the preset threshold range, determining that the sound insulation barrier is in a normal state; if the angle change exceeds the preset threshold range, determining that the sound insulation barrier has structural deterioration; and when the Euler angle exceeds the preset threshold value and is kept unchanged, determining that the sound insulation barrier is damaged.
Preferably, the method further comprises: and detecting position information, and outputting an alarm signal with the position information when the sound insulation screen is determined to be damaged.
Preferably, the sampling time interval for acquiring euler angle data is not less than 100 milliseconds.
The invention also provides a railway sound insulation barrier state detection system, which is characterized by comprising the following components:
the railway sound insulation barrier state detection devices are arranged on the railway sound insulation barrier at intervals, and each of the railway sound insulation barrier state detection devices is provided with an identity information storage device;
the data receiving and processing device is used for receiving the detected state information of the sound insulation barrier and the identity information of the detection device;
the state information output device is used for displaying the state of each position of the sound insulation barrier;
and the data receiving and processing device analyzes and processes the state information, and obtains the state of the position after obtaining the position information corresponding to the state information according to the identity information.
Preferably, the detection system further includes a monitoring device for detecting the state of the state detection device, the monitoring device transmits the working state parameter signal of the state detection device to the data receiving and processing device, and the data receiving and processing device determines whether the state detection device is in a normal working state according to the state parameter signal.
Preferably, the monitoring device includes a power supply detection device, a temperature detection device and a communication state detection device, the power supply detection device is used for detecting the power supply state of the state detection device, the temperature detection device is used for detecting the ambient temperature of the state detection device, and the communication state detection device is used for detecting the communication state of the state detection device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a schematic perspective view of one embodiment of a detection apparatus according to the present invention;
FIG. 2 is a schematic view of the internal perspective of one embodiment of the detection device of the present invention;
FIG. 3 is a block diagram of the structure of the detecting device of the present invention;
FIG. 4 is a schematic view of a mounting structure of an embodiment of the detecting unit of the present invention and a railway sound-proof barrier;
FIG. 5 is a signal processing flow of the detection apparatus of the present invention;
fig. 6 is a control flow chart of the detecting device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 3, a railway sound insulation barrier state detection device is characterized by comprising:
a detection device that detects a position and/or an angle of the railway sound barrier;
a data processing device that receives position and/or angle signals from the detection device;
a reception transmission device that receives the data processed by the data processing device and transmits the data to an external apparatus; and
a power supply device for supplying power to the detection device, the data processing device and the receiving and sending device,
the detection device detects the current position of the railway sound insulation barrier, so that whether the position of the railway sound insulation barrier changes or not can be judged according to the detected current position, and the state of the railway sound insulation barrier is further judged.
The data processing device is a single chip microcomputer, the detection device is a sensor, the receiving and sending device is a 4G or 5G module, and the power supply device is combined by a solar panel and a rechargeable battery due to the fact that the single chip microcomputer, the sensor and the 4G or 5G module are arranged.
Therefore, the solar power supply mode is generally adopted, the requirement of the product on power consumption is fully considered, and how to carry out power supply management and self function adjustment under the condition that the sunshine condition of the external environment is poor is considered, so that the adaptability of the external environment is improved to the maximum extent.
The solar panel and the self-inferior rechargeable battery are combined to be used as a power supply device, the power supply device is a necessary condition for realizing work at night and also a necessary condition for continuously working in a rainy day environment, and in addition, because the temperature difference in winter and summer is large, particularly the difference between the outdoor temperature in the south and north, the requirement on the working temperature of the product is high, and environmental tests are required to be carried out for verification.
In addition, as the product of position detection and monitoring, need have fixed and stable position relation with the target of being surveyed, do not adopt ordinary acceleration sensor in this design, traditional acceleration sensor adopts metal construction, hugs closely the object surface with the sensor in the test process, acquires the vibration parameter.
The acceleration sensor may be classified into a piezoresistive acceleration sensor, a capacitive acceleration sensor, and a piezoelectric acceleration sensor. The piezoresistive type generally comprises a millivolt output type mV and a volt value output type V; the piezoelectric acceleration sensor generally has a charge output type PE, a low-impedance voltage output type (IEPE) and a current output (4-20 mA); the capacitive acceleration sensor generally has two types, i.e., millivolt output type mV and volt value output V.
Piezoelectric acceleration sensors of the charge output type (PE) and low impedance voltage output type (IEPE) are commonly used sensor types for acceleration detection.
The traditional piezoelectric acceleration sensor outputs a charge signal which is proportional to the acceleration through an internal sensitive core body. In actual use, the high-impedance charge signal output by the sensor can be read only by converting the high-impedance charge signal into a low-impedance voltage signal through a secondary instrument. Since high impedance charge signals are very susceptible to interference, low noise shielded cables must be used for signal transmission from the sensor to the secondary meter. The working mode is inconvenient to install, particularly, the connection line from the sensor to the acquisition equipment brings construction complexity, and long-term maintenance is not facilitated.
In the invention, the sensor MPU6050 is used as a position detection device, and the MPU-6000(6050) is a global first integrated 6-axis motion processing component, so that compared with a multi-component scheme, the problem of time axis difference between a combined gyroscope and an accelerator is solved, and a large amount of packaging space is reduced.
MPU-6000(6050) has angular speed full-grid sensing ranges of 250, 500, 1000 and 2000/sec (dps), can accurately track fast and slow motions, and user programmable accelerator full-grid sensing ranges of 2g, 4g, 8g and 16 g. The product transmission can be passed through IIC up to 400kHz or SPI up to 20MHz (MPU-6050 has no SPI). MPU-6000 can work under different voltages, VDD supply voltage is 2.5V + -5%, 3.0V + -5% or 3.3V + -5%, and logic interface VDDIO supply voltage is 1.8V + -5% (MPU6000 only uses VDD). MPU-6000 package size 4x4x0.9mm (QFN), is a revolutionary size in the industry. Other features include built-in temperature sensors, including oscillators that vary by only + -1% in the operating environment.
In view of the characteristics of miniaturization and high sensitivity of the sensor, the sensor is mainly applied to motion sensing games, reality augmentation, Electronic Image Stabilization (EIS), Optical Image Stabilization (OIS), pedestrian navigators, zero-touch gesture user interfaces, gesture shortcuts, portable navigation devices and the like.
The MPU6050 digitally outputs fusion operation data of a rotation matrix of 6-axis or 9-axis, quaternion (quaternion), and Euler Angle format (Euler Angle form).
3-axis angular velocity sensors (gyroscopes) with 131LSBs/°/sec sensitivity and a full-grid sensing range of 250, ± 500, ± 1000 and ± 2000 °/sec. 3-axis accelerators that are programmable and have a range of + -2 g, + -4 g, + -8 g and + -16 g.
The analysis for accuracy and corresponding speed is as follows.
In the above condition, the angle measurement range may be
| Angular range (degree) | ±250 | ±500、 | ±1000 | ±2000 |
| Precision range (LSB/degree/second) | 131 | 65.5 | 32.8 | 16.4 |
| Minimum angular resolution (LSB/degree/second) | 0.0076 | 0.0152 | 0.0305 | 0.0610 |
If the range is +/-250 degrees, i.e., 500 degrees per second, the 16 bit AD range corresponds to a digital quantity of 65536, one digital quantity representing an angle of 0.0076 degrees, and if any dimension is X, Y, Z, the exact angular variation can be obtained according to the chip and the data processing algorithm. According to the actual position of the chip, namely the actual position state of the sound insulation barrier, when the barrier changes, the sensor of the chip synchronously identifies the barrier, when the circuit device provided with the chip is arranged at different positions of the sound insulation barrier, the change of the sound insulation barrier can be different, for example, when the barrier swings back and forth, the swing amplitude of the top is larger, and the swing amplitude of the bottom is smaller; because the sound insulation barrier is fixed by the H-shaped steel upright post, the swing amplitude of the position close to the upright post is small, the swing amplitude of the position far away from the upright post is large, the installation positions are different, the swing amplitude can be synchronously reflected to the sensor chip, the position of the barrier which is transversely centered and longitudinally centered or slightly above is selected, the influence of external force on the barrier can be sensed, after the test device is fixed, the gravity acceleration in three directions and the rotating speed in three directions and the Euler angle calculated from the gravity acceleration can reflect the state of the barrier, and through the extraction and storage of data, the long-term observation and deviation monitoring of single data can be carried out, faults can be interpreted, and the trend of faults can be predicted.
For example, when the barrier is in a static state, all measured values change slightly in a noise range, once a large change occurs, it is said that there is an external force influence, for example, when a train passes through, negative pressure in the barrier causes inward stress deformation of the barrier, when the train drives away, the barrier recovers to its original state, the measured values of the sensor return to normal values, and when the variation changes continuously, even becomes larger continuously, it is said that the structure of the barrier changes, i.e., the trend of deterioration appears. When the pitch or roll or azimuth is changed greatly and is not recoverable, the occurrence of damage is stated.
The VDD power supply voltage is 2.5V +/-5%, 3.0V +/-5% and 3.3V +/-5%; VDDIO is 1.8V + -5%.
The receiving and sending device comprises a GPS or Beidou positioning module, a 4G or 5G communication module 10 and an antenna module.
Data communication is to adopt a 4G or 5G module for data receiving and sending, and the 4G or 5G communication brings the advantages that the region is not limited, but the data flow and the operation cost are related to the working mode of the product, the mode modification function is required to be provided on the working mode of the product, the adjustment is carried out on line according to the actual requirement, and the automatic reset function under the debugging and abnormal states is met.
The euler angle measurement is realized by using the MPU6050, and an IC bus is required for parameter setting and data acquisition. Considering that the product is outdoor for a long time, and the fixed mode depends on the barrier to support, so the product volume needs miniaturized design, avoids the influence of self weight to the barrier, and secondly the wiring can increase the construction degree of difficulty, so need utilize new technology to improve the environmental suitability that the product was used on power supply and data transmission.
As shown in fig. 1 and 4, the solar panel technology is mature, and can be selected according to voltage, including area and fixing mode, and necessary investigation is performed in combination with the service condition of the solar cell adopted by the existing outdoor product, so as to determine the service life and the fixing mode. The position of the product is related to the sun exposure and the back exposure, the sunshine receiving time of the sun exposure position is long, the integrated design of the shell and the solar panel can be realized by fixing the product, the process of independently fixing the solar panel is reduced, and the construction links are reduced. But also needs to be designed in a split mode according to actual conditions, and the normal power supply under the condition of unsatisfactory illumination conditions is met.
Split type design adopts solar panel and casing separation design, and solar cell panel's fixed adoption independent mode only with pin connection to product casing, the advantage is favorable to fixing solar panel in the position that accepts the sunshine condition is good, guarantees to accept efficiency, and the shortcoming is that, solar panel and casing separation have the lead wire to need fixed, and the fixed influence of external environment ageing to insulating part need be considered to the fixed of lead wire, engineering wiring need be known.
Split type design adopts solar panel and casing separation design, and solar cell panel's fixed adoption independent mode only with pin connection to product casing, the advantage is favorable to fixing solar panel in the position that accepts the sunshine condition is good, guarantees to accept efficiency, and the shortcoming is that, solar panel and casing separation have the lead wire to need fixed, and the fixed influence of external environment ageing to insulating part need be considered to the fixed of lead wire, engineering wiring need be known.
The power supply and antenna are led out from the side or from the bottom, and the plane parallel to the screen can be used as the acting side of the solar panel, but considering the solar receiving angle, the solar panel can be generally placed on the top to obtain better energy receiving. Structurally, the design of a non-traditional cuboid can be made, one face of the cuboid is made into an inclined face, the casing of a product is made into a polyhedron, one face is the inclined face, the solar panel is placed in a benefited mode, the outgoing line of the solar panel is led into the casing from the back, the solar panel is sealed fixedly through gum, a solar panel factory needs to be contacted, the outgoing line position and the frame structure of the future possible solar panel are known, and the optimization is well made through the design of the casing of the solar panel factory. The solar energy power supply and waterproof problem is solved.
External wiring of the wires is reduced or avoided, and a sheath needs to be added to the part where the external wiring is necessary to protect the wires.
In terms of internal structure design, the position detection device, the signal receiving and transmitting device and the data processing device are arranged on a circuit board. Meanwhile, circuit board fixation, battery fixation and antenna fixation are considered. Because the appearance and the inside of the product have an interface relation, the solar panel is assembled in sequence and needs to be fixed in advance, and the lead of the solar panel is welded with a plug in advance and connected with the circuit board in a socket plugging mode, so that the solar panel is convenient to assemble and maintain.
The circuit board can be arranged at a position parallel to the sound insulation screen or a position vertical to the sound insulation screen, and in consideration of future die sinking, the frame type outer frame is more attractive, and the circuit board is more convenient to fix and mount on the base. The base is used as a link of final sealing, the connection of an antenna and a power supply battery is butted with a circuit board on the bottom plate through connectors in different forms, the antenna adopts a small coaxial connector, the power supply adopts a plastic 2-core with a self-locking device, and the connectors at the interval of 2.54 are connected. The fixed of electroplax board need punch on the base, do the screw thread, support the circuit board through platform form screw, and circuit board thickness need be greater than the height of screw thread, and the cost of this kind of processing mode is simpler than the processing mode of local making the boss, and is economic. The circuit board is fastened in a manner of being matched with the table-shaped screws.
The whole floor and the outer frame are connected by embedding screw holes in the frame structure, the frame structure is reinforced by screws, the screws are flat-headed screws, the bottom of the bottom plate is guaranteed to be free of protruding parts, and the bottom plate can be protected by film pasting.
The connection and fixation mode of the product casing and the barrier. Two common approaches are used.
(1) Fixing a fastener: the screw and the nut are common modes for realizing the connection of products or parts, the fixing mode also has a plurality of screw materials which can be selected, the screw materials mainly comprise carbon steel, stainless steel and copper, wherein the carbon steel comprises low carbon steel, medium carbon steel, high carbon steel and alloy steel. The material selection mainly ensures that the screw material and the barrier material are both metal, and long-term reliability is influenced due to electrochemical corrosion on a contact part caused by long-term outdoor environment, acid rain and the like. In addition, the installation and construction of the product can not be completed by one person, the screw and the nut are not arranged on the same surface of the barrier, two persons are required to cooperate for construction, and certain complexity is achieved.
(2) Strong magnet adsorption: the bottom of the machine shell is provided with the strong magnetic material, so that the fixation of the product can be realized. The first mode is that the shell and the barrier are made of iron materials, and the shell and the barrier are fixed by utilizing magnets; in another case, if the enclosure is not a metal or a magnetic material, the barrier is not a magnetic material, or one of the two is not a magnetic material, a magnetic metal plate needs to be fixed on the surface of the barrier to serve as a base for fixing the enclosure. The mode can separate the installation of the base and the product, and the installation of the product does not need screws and is completely realized by magnetic materials.
The invention adopts a strong magnet adsorption mode for installation and fixation, the sound insulation barrier is fixedly provided with a base with a magnetic material arranged inside, and the magnetic material in the base and the side surface of the casing with the magnetic material are attracted towards each other so as to fix the casing on the sound insulation barrier. By adopting the mode, the technical effects of facilitating construction and installation, avoiding damaging the sound insulation barrier structure and the like are achieved.
The product is installed on one side with longer sunshine time of the barrier as far as possible, and the sufficient power supply of the product is ensured.
Adopt the part of fastener reinforcement to need adopt the mode of rubber buffer protection, cover the surface to screw part, avoid corroding to cause the screw corrosion to drop.
The firmness of installation of the product and parts (the machine shell, the antenna and the solar panel) of the product is ensured in design, and meanwhile, the materials exposed in the air are ensured to have the capabilities of corrosion resistance and oxidation in material selection, so that the potential safety hazard caused by aging of the parts per se is avoided.
The electronic components used by the product adopt industrial products in the aspect of selection of types, and the temperature range meets the working condition of-40 to +85 ℃. And high and low temperature circulation tests, high and low temperature storage tests and aging tests are carried out on the product, so that the reliability of long-term outdoor work of the product is ensured.
The method comprises the following steps:
acquiring Euler angle data of the railway sound barrier through an acceleration sensor fixedly arranged on the railway sound barrier;
comparing the obtained Euler angle data with a preset threshold range;
if the Euler angle data change is within the preset threshold range, determining that the sound insulation barrier is in a normal state; if the angle change exceeds the preset threshold range, determining that the sound insulation barrier has structural deterioration; and when the Euler angle exceeds the preset threshold value and is kept unchanged, determining that the sound insulation barrier is damaged.
The method further comprises the following steps: and detecting position information, and outputting an alarm signal with the position information when the sound insulation screen is determined to be damaged.
And the sampling time interval for acquiring the Euler angle data is not less than 100 milliseconds.
The MUP60X0 uses SCL and SDA as IIC interfaces to connect the MCU, and the MCU controls the MPU6050 through the IIC interfaces to obtain the original data of the acceleration sensor, the angular velocity sensor, and the temperature sensor. And obtaining a course angle (yaw), a roll angle (roll) and a pitch angle (pitch) through a calculation formula of the Euler angle. However, direct pose fusion solution by using the raw data we obtained is relatively complex.
The MPU6050 has a digital motion processor DMP, and InvenSense provides an embedded motion driving library of the MPU6050, and in combination with the DMP of the MPU6050, the obtained raw data can be directly converted into quaternion to be output, and after a quaternion is obtained, the euler angle can be conveniently calculated, so that yaw, roll and pitch are obtained.
The detection method mainly comprises the steps of reading MPU6050 data, processing the data to obtain Euler angles, reading GPS positioning information, caching the data, and estimating the shortest time of a measuring point passing through a train according to the speed of the train and the length of the train by setting a sampling interval.
Serial number high-speed train length (meter) speed (kilometer/hour)
| 1 | CRH1A motor car 8-section carriage | 213.5 | 250 |
| 2 | CRH1B motor car 16-section carriage | 426.3 | 250 |
| 3 | CRH1E motor car 16-section carriage | 428.9 | 250 |
| 4 | CRH2A motor car 8-section carriage | 201.4 | 250 |
| 5 | CRH2B motor car 16-section carriage | 401.4 | 250 |
| 6 | CRH2C motor car 8-section carriage | 201.4 | 250 |
| 7 | CRH2E motor car 16-section carriage | 401.4 | 250 |
| 8 | CRH3C motor car 8-section carriage | 200.3 | 250 |
| 9 | CRH5A motor car 8-section carriage | 211.5 | 250 |
| 10 | CRH380A motor car 8-section carriage | 203 | 250 |
| 11 | CRH380AL motor car 16-section carriage | 403 | 250 |
| 12 | CRH380BL motor car 16-section carriage | 399.3 | 250 |
| 13 | CRH380B motor car 8-section carriage | 200.3 | 250 |
| 14 | CRH380D motor car 8-section carriage | 215.3 | 250 |
| 26 | Fuxing number | 414.26 | 350 |
It can be calculated that the time for a train to pass the sensor is about 2.8 seconds to 6.17 seconds. The minimum sampling interval must not be below 2.8 seconds for sampling to be missed. However, in order to understand the influence of the train on the barrier, the number of sampling points needs to be increased properly, the actual situation needs to be adjusted by comparing the discrete types of the sampling point frequency, the minimum sampling interval is assumed to be 100ms, and the number of the sampling points is not less than 28 points in one train passing. The scientific setting needs to know the vibration frequency of the barrier when the barrier encounters a train, the setting is carried out according to the sampling theorem, and a register configurable mode is designed on software, so that the modification is convenient.
As shown in fig. 5-6, it can be seen that the main program stores the data acquired 100 times, and calculates three angle maximum values and minimum values of the data, and the calculated values are sent to the 4G port together with the data sampled 100 times, and received by the server, and the server can further process the data, because the data amount at the server end is larger, the minimum value can know the angle change condition of the test position represented by the test point by receiving the maximum value of the data, and the larger the angle change is, the more obvious the position change is, when the angle change is within a certain range, the barrier is in a normal state, and if the angle deviation is larger, the test point is tracked and checked according to the position information, so as to achieve the dangerous case early warning.
The invention also discloses a railway sound insulation barrier state detection system, which comprises a plurality of railway sound insulation barrier state detection devices, a data receiving and processing device and a state information output device, the plurality of railway sound insulation barrier state detection devices are arranged on the railway sound insulation barrier at intervals, each of the plurality of railway sound insulation barrier state detection devices is provided with an identity information storage device, the detection device communicates with the data receiving and processing device through a mobile signal, and transmits the detected sound insulation barrier state information and the identity information of the detection device to the data receiving and processing device which analyzes and processes the state information, and after obtaining the position information corresponding to the identity information according to the identity information, transmitting an analysis processing result and the position information to the state information output device, wherein the state information output device displays each position state of the sound insulation barrier.
The detection system also comprises a monitoring device for detecting the state of the state detection device, the monitoring device transmits the working state parameter signal of the state detection device to the data receiving and processing device, and the data receiving and processing device judges whether the state detection device is in a normal working state or not according to the state parameter signal.
The monitoring device comprises a power supply detection device, a temperature detection device and a communication state detection device, wherein the power supply detection device is used for detecting the power supply state of the state detection device, the temperature detection device is used for detecting the environment temperature of the state detection device, and the communication state detection device is used for detecting the communication state of the state detection device.
The product is consistent in appearance, positioning information exists in the data transmission process, but modules which are close to each other cannot be distinguished in space positions, so that a physical address needs to be provided, the physical address needs to be solidified into a nonvolatile memory, physical address information needs to be carried in the data uploading process, and in order to further confirm a target in a positioning range, a nameplate or a self-testing port can be added on the product to read data and know identity information of the product. So as to identify and operate the product requiring maintenance.
Besides realizing data acquisition, data processing and data output of the internal sensor, state information of the state is required to be reported, the state information mainly comprises a power supply state, an environment temperature and a communication state, the signals are helpful for understanding the functions of products, fault location and reason analysis are carried out on abnormal products, early warning is carried out on possible faults, such as charging voltage, if the abnormal products deviate from normal values gradually, the service life of the battery is possibly close to the validity period, and reference basis can be provided for product maintenance personnel to replace the battery through statistical rules.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It should be understood by those skilled in the art that the above embodiments are only for clarity of explanation and are not intended to limit the scope of the present application. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are still within the scope of the present application.
Claims (10)
1. A railway sound insulation barrier state detection device, characterized by comprising:
a detection device that detects a position and/or an angle of the railway sound barrier;
a data processing device that receives position and/or angle signals from the detection device;
a receiving and sending device which receives the data processed by the data processing device and sends the data to an external device; and
a power supply device for supplying power to the detection device, the data processing device and the receiving and sending device,
the detection device detects the current position of the railway sound insulation barrier, so that whether the position of the railway sound insulation barrier changes or not can be judged according to the detected current position, and the state of the railway sound insulation barrier is further judged.
2. The railway sound barrier status detection device according to claim 1, further comprising a housing that houses the detection device, the data processing device, the reception and transmission device, and the power supply device, and is configured to be fixedly attached to a surface of the railway sound barrier.
3. The railway sound barrier state detection apparatus of claim 2,
the shell is provided with a magnet so that the shell can be magnetically adsorbed to the surface of the railway sound insulation barrier; or
The shell is provided with a magnet, and the shell is adsorbed to the surface of the railway sound insulation barrier through the interaction of the magnet and the magnet arranged on the surface of the railway sound insulation barrier.
4. The railway sound barrier status detection apparatus of claim 3, wherein the power supply means is a solar panel, and the housing includes an inclined surface, the solar panel being disposed on the inclined surface, and a side surface adjacent to the inclined surface being provided with a magnet so as to be attracted to a surface of the railway sound barrier.
5. The railway sound barrier state detection device according to any one of claims 1 to 4, further comprising a monitoring device for monitoring an operating state parameter of the detection device.
6. The railway sound barrier state detection device according to claim 5, wherein: the monitoring device comprises a power supply detection device, a temperature detection device and a communication state detection device, wherein the power supply detection device is used for detecting the power supply state of the power supply device, the temperature detection device is used for detecting the ambient temperature, and the communication state detection device is used for detecting the communication state of the receiving and sending device.
7. A state detection method of a railway sound insulation barrier is characterized by comprising the following steps: the method comprises the following steps:
acquiring Euler angle data of the railway sound barrier through an acceleration sensor fixedly arranged on the railway sound barrier;
comparing the obtained Euler angle data with a preset threshold range;
if the Euler angle data change is within the preset threshold range, determining that the sound insulation barrier is in a normal state; if the angle change exceeds the preset threshold range, determining that the sound insulation barrier has structural deterioration; and when the Euler angle exceeds the preset threshold value and is kept unchanged, determining that the sound insulation barrier is damaged.
8. The method for detecting the state of a railway sound barrier according to claim 7, characterized in that: the method further comprises the following steps: and detecting position information, and outputting an alarm signal with the position information when the sound insulation screen is determined to be damaged.
9. A railway sound barrier condition detection system, comprising:
the railway sound insulation barrier state detection devices are arranged on the railway sound insulation barrier at intervals, and each of the railway sound insulation barrier state detection devices is provided with an identity information storage device;
the data receiving and processing device is used for receiving the detected state information of the sound insulation barrier and the identity information of the detection device;
the state information output device is used for displaying the state of each position of the sound insulation barrier;
and the data receiving and processing device analyzes and processes the state information, and obtains the state of the position after obtaining the position information corresponding to the state information according to the identity information.
10. The railway sound barrier status detection system of claim 9, wherein: the detection system also comprises a monitoring device for detecting the state of the state detection device, the monitoring device transmits the working state parameter signal of the state detection device to the data receiving and processing device, and the data receiving and processing device judges whether the state detection device is in a normal working state or not according to the state parameter signal.
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Application publication date: 20210907 |