CN112896231B - Railway track sand burying degree monitoring device and method - Google Patents

Abstract

The invention discloses a railway track sand burying degree monitoring device and method, which acquire images of a track in an image acquisition place by acquiring the images of the track in the running process of a train and then processing the images by a computer device, particularly, after acquiring an image with latitude and longitude information, establishing a database based on the acquired image information, and when processing the images, calculating that the number of pixels of the track and a sleeper in a single image is x ₁ ,y ₁ Determining a key area needing to be sampled for many times, if delta is more than or equal to 60%, the situation that the sand and dust are equal to the height of the rail possibly occurs, and timely sending a worker to the key area to carry out on-site inspection on the rail and clearing the sand and dust; delta may occur during subsequent processing of the region of interest _i The condition of rapid explosion also needs to be cleaned to ensure the running safety of the train, and the maintenance cost of the rail can be greatly reduced through the image acquisition equipment and the subsequent processing of the image.

Description

A device and method for monitoring the degree of sand burial in railway track

technical field

The invention relates to a railway maintenance technology, in particular to a device and method for monitoring the sand burial degree of a railway track.

Background technique

With the improvement of the rail transit network in the northwest region, the research and development of measures for the railways passing through desertified areas to deal with the invasion of yellow sand is particularly necessary. At present, shelter forests or sand-fixing belts are mainly built in areas with severe sand damage, which are extremely expensive and difficult to protect the entire line. There are also some lines that use image monitoring systems to monitor the road sections with serious sand burial hazards, and send video or image information back to the control center for processing to make manual maintenance decisions. Due to the high construction cost, many road sections do not have monitoring equipment, and it is impossible to obtain information on the sand burial condition in time, which brings certain risks to vehicle operation. In addition, there is currently a lack of corresponding technical means for how to identify the railway track burial problems caused by some new activated sand sources, and to carry out early warning and treatment in a timely manner. .

The protection of existing railway sand burial hazards is mainly to build shelter forests on relevant road sections, or set up high vertical sand barriers, geogrids, dig and intercept sand trenches, build sand retaining walls, plant tree branches sand barriers, lay sand and stones, etc. to fix sand. technology for protection. However, due to the strong sandstorm and strong sunshine in the desert, the sand control grid is often torn by the wind and must be repaired and maintained regularly, resulting in very serious economic losses. At the same time, the railway line is too long, and the economic cost of building all the protective belts is too high, which is not practical. In addition, some scholars have tried to use chemical material spraying to fix sand, but they have been abandoned for large-scale applications due to problems such as material durability and environmental health. For the monitoring of sand burial, the railway department tries to install image monitoring systems in some areas with serious sand burial hazards, and implements the monitoring of railway sand burial hazards by collecting images - image processing - manual judgment - manual decision-making. Because it is fixed-point monitoring, the monitoring points are very limited, and the larger the monitoring scope, the higher the construction cost, so it is not widely adopted. In addition, necessary information cannot be given to the new sand source activation road section, so that the safety of vehicle operation cannot be fundamentally guaranteed. At present, this aspect is mainly detected by manual inspection. Therefore, there is a need for a monitoring device that can collect images of railroad tracks with geographic information and has a good image collection effect.

SUMMARY OF THE INVENTION

The purpose of the invention is to provide a monitoring device and method for the degree of sand burial of a railway track. The invention has the advantages of being able to collect the image of the railway track in real time and accompanied by geographic information, the image collection effect is good, and the maintenance cost of the railway track can be greatly reduced, so as to solve the above-mentioned background. Issues raised in technology.

To achieve the above object, the present invention provides the following technical solutions:

A device for monitoring the sand burial degree of railway tracks, comprising an installation frame and an image acquisition device, the installation frame is fixed on a train by bolts, the image capture device is installed on the side wall of the installation frame, and the installation frame includes a first horizontal plate , the second horizontal plate, the vertical plate, the baffle plate and the cover plate, the bottom end of the cover plate is movably connected with the second horizontal plate through hinges, the top of the cover plate is in contact with the edge of the first horizontal plate, the first horizontal plate and the second horizontal plate are in contact with each other. The horizontal plates are fixed on the side walls of the vertical plates, the vertical plates and the first horizontal plate are connected to the train by bolts, and the image acquisition equipment is installed on the second horizontal plate. The image acquisition equipment includes acquisition cameras, fill lights and GPS locators , the GPS locator is installed above the second horizontal plate, the lower surface of the second horizontal plate is equipped with a collection camera and a fill light, the GPS locator is connected to the collection camera through a wire, the fill light is located on one side of the collection camera, and the vertical plate A baffle is installed at the bottom of the .

Preferably, there are four acquisition cameras in total, the four acquisition cameras are divided into two pairs, and the two pairs of acquisition cameras are respectively arranged obliquely above both sides of the rail.

Preferably, both the fill light and the lens of the capturing camera face toward the inner and outer walls of the rail.

Preferably, the baffle is a transparent acrylic plate.

Preferably, a buckle and a handle are installed on the top of the cover plate, and the cover plate is connected to the first horizontal plate through the buckle.

Another technical problem to be solved by the present invention is to provide an implementation method of a railway track sand burial degree monitoring device, comprising the following steps:

S1: Equipment installation, first install the image acquisition equipment on the mounting frame, and the cover plate needs to be closed after the GPS locator is installed. The acquisition camera and fill light in the image acquisition equipment are installed on the back side of the baffle to avoid direct Facing the wind, at the same time, the lens of the acquisition camera faces the inside and outside of the rail;

以保证可实现每行驶n米成像一次，n值的确定可根据所采用的摄像头视野确定，并对采集图像进行实时储存，存储格式为地理位置N,S、图像中铁轨所占像素数目x₀、枕木所占像素数目y₀；S2: Phase acquisition during operation. Driven by the train, the image acquisition device 2 continuously takes pictures of the rails and sleepers. At the same time, with the cooperation of the GPS locator 23, images with latitude and longitude information can be obtained. Specifically, When the speed of the train is v, adjust the frame rate of the image acquisition system and set the frame rate

In order to ensure that the imaging can be realized once every n _meters of driving, the n value can be determined according to the field of view of the camera used, and the collected images can be stored in real time. , the number of pixels y ₀ occupied by sleepers;

且

则说明当地没有沙埋情况发生，否则说明当地已有可能出现沙埋情况，在后续这些区域可每隔t天采集一次数据进行检测，也可以在每列火车安装本系统，每趟列车采集一次信息并经图像处理后记录所获取的数据；S3: Image processing. Image processing is to detect rails and sleepers. During image processing, it is necessary to calculate the number of pixels of both the rails and sleepers in a single image as x ₁ , y ₁ . It is assumed that the image is acquired when there is no sand between the rails. The number of pixels occupied by rails x ₀ , the number of pixels occupied by sleepers y ₀ , and

and

It means that there is no sand burial in the local area. Otherwise, it means that there may be sand burial in the local area. In the following areas, data can be collected every t days for testing, or the system can be installed on each train to collect data once per train. information and record the acquired data after image processing;

和

并保存采样时间t_i，采样位置(N,S)及δ_i与β_i的值，若δ≥40％时需派人进行实地查验，并考虑对埋沙进行清理。若经当δ≥60％时，可能出现沙尘已与铁轨高度持平的情况，此时列车行驶已不太安全，禁止列车通行；S4: Subsequent processing of key areas, the images collected at time t _i after the key areas are processed by digital image processing, and the pixel elements occupied by the rails and sleepers are calculated as xi, yi (i≥2), respectively.

and

And save the sampling time t _i , the sampling location (N, S) and the values of δ _i and β _i . If δ ≥ 40%, a person should be dispatched to conduct on-the-spot inspection, and the buried sand should be cleaned up. If the time δ ≥ 60%, it may happen that the sand and dust are at the same height as the rail, and the train is not very safe at this time, and the train is prohibited from passing;

S5: Personnel inspection. When the system detects that the sand and dust may be equal to the height of the rails, staff should be dispatched to key areas to conduct on-site inspections of the rails and remove sand and dust.

Preferably, in the step S3, after the image processing data is processed, it is found that there are discontinuities in a plurality of sleepers through image recognition, or δ ₁ and δ ₂ do not meet the above conditions, indicating that sand and dust has accumulated at the position, and the corresponding image is saved. and GPS information, store it in the specified file, and instruct the sensor to encrypt and take pictures when it arrives at the location subsequently, and record the key monitoring locations determined by the detection here as A(i), where i only means this There are multiple locations.

Preferably, in the step S4, a rapid surge of δ _i may occur during the subsequent processing of key areas, that is, after obtaining certain data about t _i , δ _i , and β _i , it is possible to increase δ _i , β _i by a fixed ratio It is assumed that according to the obtained historical data, it takes 2 days for δ _i to increase from 40% to 60%. Then, after detecting that δ _i is close to the set threshold, it is necessary to arrange relevant personnel to clean it up in time. Ensure the safety of trains.

Preferably, in the S2, after the operation phase acquisition is completed, not only can the image information data be transmitted to the remote control center in real time through the wireless data network, but also the image information data can be temporarily stored on the train until it reaches the terminal, or there is a stable The data relay station of the signal is sent to the control center.

Compared with the prior art, the beneficial effects of the present invention are: the device and method for monitoring the sand burial degree of the railway track proposed by the present invention, the image acquisition device can perform image acquisition on the track during the running of the train, and the collected data can be collected. The image and geographic location information are sent to the data processing center, and image processing is carried out with the help of computer equipment to obtain the sand burial of the rails at the image collection site. In the case of blocking sand and dust; in which, after obtaining the image with latitude and longitude information, a database is established based on the collected image information at the same time. When performing image processing, it is necessary to calculate the number of pixels in a single image for both the rail and the sleeper as x ₁ , y _1. When there is no sand burial, data can be collected every t days for detection. When there is accumulation of sand and dust, a photo should be taken every time you arrive at the location, and the key areas determined by the detection will be taken here. , and reprocess the images collected in the key areas. If the δ ≥ 60%, the sand and dust may be equal to the height of the rails. Staff should be dispatched to the key areas to conduct on-site inspections of the rails and remove the sand and dust. ; In the follow-up process of key areas, there may be a rapid surge of δ _i , which should also be cleaned up to ensure the safety of trains. Through the image acquisition equipment and the follow-up processing of the images, the maintenance cost of the rails can be greatly reduced.

Description of drawings

1 is a schematic side view of the overall structure of the present invention;

Fig. 2 is the front schematic diagram of the overall structure of the present invention;

3 is a schematic diagram of the structure of the mounting frame of the present invention;

FIG. 4 is a schematic diagram of the structure of the cover plate of the present invention.

In the figure: 1. Mounting frame; 11. The first horizontal plate; 12. The second horizontal plate; 13. Vertical plate; 14. The baffle plate; 15. The cover plate; Equipment; 21. Capture camera; 22. Fill light; 23. GPS locator.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figure 1-4, a railway track sand burial degree monitoring device, including a mounting frame 1 and an image acquisition device 2, the mounting frame 1 is fixed on the train by bolts, and the image acquisition device 2 is installed on the side wall of the mounting frame 1 , that is, the entire mounting frame 1 and the image acquisition device 2 are arranged on the locomotive or the body or the rear of the train. During the running process of the train, the train drives the mounting frame 1 and the image acquisition device 2, and the image acquisition device 2 can perform image acquisition on the track. The collected images and geographic location information are sent to the data processing center, and image processing is performed with the help of computer equipment to obtain the sand burial of the rails at the image collection site. The mounting frame 1 includes a first horizontal plate 11, a second horizontal plate 12, and a vertical plate. 13. The baffle plate 14 and the cover plate 15. The bottom end of the cover plate 15 is movably connected to the second horizontal plate 12 through hinges. The top end of the cover plate 15 is in contact with the edge of the first horizontal plate 11. Buckle 151 and handle 152. The cover plate 15 is connected to the first horizontal plate 11 through the buckle 151, wherein the buckle 151 is used for the connection between the cover plate 15 and the first horizontal plate 11, and the installation of the handle 152 facilitates the operation of the cover plate 15. Both the horizontal plate 11 and the second horizontal plate 12 are fixed on the side wall of the vertical plate 13, the vertical plate 13 and the first horizontal plate 11 are both connected to the train by bolts, and the image acquisition device 2 is installed on the second horizontal plate 12. The device 2 includes a capture camera 21, a fill light 22 and a GPS locator 23. The GPS locator 23 is installed above the second horizontal plate 12, that is, the GPS locator 23 is arranged on the first horizontal plate 11, the second horizontal plate 12 and the In the cavity formed by the cover plate 15 , the installation of the cover plate 15 can prevent sand and dust from invading the GPS locator 23 , and a collection camera 21 and a fill light 22 are installed on the lower surface of the second horizontal plate 12 , and the collection camera 21 images the track. For acquisition, the installation of the fill light 22 can fill in the light in dim conditions, ensuring that the acquisition camera 21 can perform image acquisition normally. The GPS locator 23 is connected to the acquisition camera 21 through a wire, so that the image information collected by the acquisition camera 21 can be added Geographic location information, the fill light 22 is located on one side of the collection camera 21, there are four collection cameras 21 in total, the four collection cameras 21 are divided into two pairs, and the two pairs of collection cameras 21 are respectively arranged on both sides of the rail. The lenses of the fill light 22 and the acquisition camera 21 are both facing the inner and outer walls of the rails. The bottom end of the vertical plate 13 is provided with a baffle 14. The baffle 14 is a transparent acrylic plate. The baffle 14 made of transparent acrylic can not only block the Sand and dust can avoid sand and dust from eroding the acquisition camera 21 and the fill light 22. At the same time, the transparent feature can ensure the illumination and ensure that the image acquisition device 2 can perform image acquisition normally. Of course, the baffle 14 can also be replaced by high-transmittance tempered glass. .

An implementation method of a railway track sand burial degree monitoring device, comprising the following steps:

The first step: equipment installation, first install the image capture device 2 on the mounting frame 1, where the GPS locator 23 needs to be sealed with the cover 15 after installation, and the capture camera 21 and the fill light 22 in the image capture device 2 are installed on the The rear side of the baffle 14 avoids it being directly windward, and at the same time the lens of the capturing camera 21 faces the inside and outside of the rail.

以保证可实现每行驶n米成像一次，n值的确定可根据所采用的摄像头视野确定，并对采集图像进行实时存储，存储格式为地理位置N,S、图像中铁轨所占像素数目x₀、枕木所占像素数目y₀；运行取相结束后不仅可以通过无线数据网络将图像信息数据实时传输给远处的控制中心，还能将图像信息数据暂存在火车上待到终点站，或有稳定信号的数据中继站时发送至控制中心。The second step: run phase acquisition. Driven by the train, the image acquisition device 2 continuously takes pictures of the rails and sleepers. At the same time, with the cooperation of the GPS locator 23, an image with latitude and longitude information can be obtained. Say, when the speed of the train is v, adjust the frame rate of the image acquisition system and set the frame rate

In order to ensure that the imaging can be realized every n _meters , the n value can be determined according to the field of view of the camera used, and the collected images can be stored in real time. , the number of pixels y ₀ occupied by the sleepers; after the operation and phase acquisition, not only can the image information data be transmitted to the remote control center in real time through the wireless data network, but also the image information data can be temporarily stored on the train to the terminal station, or It is sent to the control center when the data relay station of the stable signal.

且

则说明当地没有沙埋情况发生，否则说明当地已有可能出现沙埋情况，作为重点区域进行重点处理。在系统中记录时间、对应位置的GPS信息和δ₁，β₁值，在后续这些区域可每隔t天采集一次数据进行检测；也可以在每列火车安装本系统，每趟列车采集一次信息并经图像处理后记录所获取的数据；图像处理数据处理后出现图像识别发现多个枕木存在不连续现象，或δ₁与δ₂不满足上述条件，说明该位置处已有沙尘累计，保存对应的图像和GPS信息，将其存储于指定文件中，并指令传感器在后续到达该位置处时均加密拍照，并将此处检测确定的重点监测位置分别记为A(i)，此处i只表示这样的位置存在多处。The third step: image processing. Image processing is to detect rails and sleepers. During image processing, it is necessary to calculate the number of pixels of both the rails and sleepers in a single image as x ₁ , y ₁ , and

and

It means that there is no sand burial in the local area. Otherwise, it means that there may be sand burial in the local area, which should be treated as a key area. The system records the time, GPS information of the corresponding position, and δ ₁ , β ₁ values. In the subsequent areas, data can be collected every t days for detection; the system can also be installed on each train to collect information once per train. And record the obtained data after image processing; after image processing, image recognition found that there are discontinuities in multiple sleepers, or δ ₁ and δ ₂ do not meet the above conditions, indicating that sand and dust has accumulated at the location, save it. The corresponding image and GPS information are stored in the specified file, and the sensor is instructed to encrypt and take pictures when it arrives at the location subsequently, and the key monitoring locations determined by the detection here are recorded as A(i), where i It just means that there are multiple such locations.

和

并保存采样时间t_i，采样位置(N,S)及δ_i与β_i的值，若经当δ≥60％时，可能出现沙尘已与铁轨高度持平的情况，此时列车行驶已不太安全，禁止列车通行；重点区域后续处理过程中可能出现δ_i快速激增的情况，即获得一定的关于t_i,δ_i,β_i数据后，可对δ_i,β_i增加固定比率所需的时长Δ进行估算，假定根据已获得的历史数据，δ_i由40％增加至60％需要2天，那么在检测到δ_i接近设定阈值后就需及时安排相关人员去进行清理，以保障列车行驶安全。Step 4: Subsequent processing of key areas. After digital image processing of the images collected at time t _i after the key areas, the pixel elements occupied by the rails and sleepers are calculated as x _i , y _i (i≥2), respectively. Calculate

and

And save the sampling time t _i , the sampling position (N, S) and the values of δ _i and β _i , if δ ≥ 60%, it may happen that the sand and dust are equal to the height of the rail, and the train is no longer running. It is too safe to allow trains to pass; δ _i may rapidly surge in the subsequent processing of key areas, that is, after obtaining certain data about t _i , δ _i , β _i , you can increase δ _i , β _i by a fixed ratio required Assuming that according to the obtained historical data, it takes 2 days for δ _i to increase from 40% to 60%, then after detecting that δ _i is close to the set threshold, it is necessary to arrange relevant personnel to clean it up in time to ensure The train runs safely.

Step 5: Personnel inspection. When the system detects that the sand and dust may be equal to the height of the rails, staff should be dispatched to key areas to conduct on-site inspections of the rails and remove sand and dust.

In this device for monitoring the sand burial degree of railway tracks, the installation frame 1 and the image acquisition device 2 are arranged at the locomotive or the body or the rear of the train. The acquisition camera 21 in the image acquisition device 2 can be replaced by a high-speed camera. During the running of the train, the image acquisition device 2 can carry out image collection on the track, and send the collected image and geographic location information to the data processing center, and perform image processing with the help of computer equipment, so as to obtain the sand burial situation of the rail at the image collection site, and the image collection equipment 2 includes a collection camera 21 , the fill light 22 and the GPS locator 23, the installation of the cover 15 can prevent sand and dust from invading the GPS locator 23, the acquisition camera 21 performs image acquisition on the track, and the installation of the fill light 22 can fill in the light in dim conditions, It is ensured that the acquisition camera 21 can perform image acquisition normally, so that the image information collected by the acquisition camera 21 can be added to the geographic location information. There are four acquisition cameras 21 in total, and the four acquisition cameras 21 are divided into two pairs, and the two pairs of acquisition cameras 21 They are arranged diagonally above both sides of the rail, and the lenses of the fill light 22 and the acquisition camera 21 are both facing the inner and outer walls of the rail. The baffles made of transparent materials can not only block sand and dust, but also prevent the dust from eroding the acquisition camera 21 and the fill light. At the same time, the transparent feature of the lamp 22 can ensure illumination and ensure that the image acquisition device 2 can perform image acquisition normally.

且

则说明当地没有沙埋情况发生，并记录对应的GPS信息和δ₁，β₁值，在后续这些区域可每隔t天采集一次数据进行检测；图像处理数据处理后出现图像识别发现多个枕木存在不连续现象，或δ₁与δ₂不满足上述条件，说明该位置处已有沙尘累计，保存对应的图像和GPS信息，将其存储于指定文件中，并指令传感器在后续到达该位置处时均拍照1次，并将此处检测确定的重点监测位置分别记为A(i)。The implementation method of the railway track sand burial degree monitoring device is to install the equipment first, install the image acquisition device 2 on the train, wherein the lens of the acquisition camera 21 faces the inner and outer sides of the railway track, and then take the phase of the railway track as the train runs, and image acquisition. The device 2 continuously takes pictures of the rails and sleepers, and at the same time, with the cooperation of the GPS locator 23, an image with latitude and longitude information can be obtained, and the image is taken every n meters. At the same time, a database is established based on the collected image information. The storage format is the geographic location N, S, the number of pixels occupied by the rails x ₀ in the image, and the number of pixels occupied by the sleepers y ₀ ; the running phase acquisition can not only transmit the image information data to the remote control center in real time through the wireless data network, but also The image information data is temporarily stored on the train, and then image processing is performed. Image processing is to detect rails and sleepers. During image processing, it is necessary to calculate the number of pixels of both the rails and sleepers in a single image as x ₁ , y ₁ , and

and

It means that there is no sand burial in the local area, and the corresponding GPS information and δ ₁ , β ₁ values are recorded. In the subsequent areas, data can be collected every t days for detection; There is discontinuity, or δ ₁ and δ ₂ do not meet the above conditions, indicating that there is sand accumulation at the location, save the corresponding image and GPS information, store it in the specified file, and instruct the sensor to arrive at the location in the future Take pictures once every time, and record the key monitoring positions determined by the detection here as A(i).

和

并保存采样时间t_i，采样位置(N,S)及δ_i与β_i的值，若经当δ≥60％时，可能出现沙尘已与铁轨高度持平的情况，此时列车行驶已不太安全，应及时派工作人员到重点区域对铁轨进行实地巡查，并清除沙尘。After the image collected at time t _i after the key area is processed by digital image, the pixel elements occupied by the rails and sleepers are calculated as x _i , y _i (i≥2), respectively.

and

And save the sampling time t _i , the sampling position (N, S) and the values of δ _i and β _i , if δ ≥ 60%, it may happen that the sand and dust are equal to the height of the rail, and the train is no longer running. If it is too safe, staff should be dispatched to key areas to conduct on-site inspections of the rails and remove sand and dust.

In the follow-up processing of key areas, there may be a rapid surge of δ _i , that is, after obtaining certain data about t _i , δ _i , β _i , the time duration Δ required for δ _i , β _i to increase by a fixed ratio can be estimated, Assuming that according to the obtained historical data, it takes 2 days for δ _i to increase from 40% to 60%, then after detecting that δ _i is close to the set threshold, it is necessary to arrange relevant personnel to clean it up in time to ensure the safety of the train.

Not only that, sensors such as lidar can also be installed on the train to replace the acquisition camera 21, and the corresponding signals can be collected by sensors such as lidar and compared with historical signals to determine the degree of sand and dust burial. This method should also be used. It belongs to an application of this case and is also within the protection scope of the present invention. At the same time, the installation number, installation position and angle of cameras and GPS sensors only affect the imaging quality and image results, but do not affect the main protection features of the invention.

To sum up, according to the device and method for monitoring the sand burial degree of the railway track proposed by the present invention, the image acquisition device 2 can collect the image of the track during the running of the train, and send the collected image and geographic location information to the data. The processing center performs image processing with the help of computer equipment, thereby obtaining the sand burial situation of the rails at the image collection site. The installation of the fill light 22 can fill in the light under dim conditions, and the baffle 14 can block the sand and dust without affecting the light; After the image with latitude and longitude information is obtained, a database is established based on the collected image information at the same time. When performing image processing, it is necessary to calculate the number of pixels in a single image of rails and sleepers as x ₁ , y ₁ . When there is no sand burial When the situation occurs, data can be collected every t days for detection. When there is accumulation of sand and dust, a photo should be taken every time you arrive at the location, and the key areas identified here will be detected and collected. If δ≥60%, the sand and dust may be at the same height as the rails, and staff should be dispatched to key areas to conduct on-site inspections of the rails and remove sand and dust; follow-up processing in key areas During the process, there may be a rapid surge of _δi , which should also be cleaned up to ensure the safety of the train. Through the image acquisition device 2 and the subsequent processing of the images, the maintenance cost of the rails can be greatly reduced.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (8)

1. The implementation method of the railway track sand burying degree monitoring device comprises an installation frame (1) and image acquisition equipment (2), and is characterized in that: the mounting frame (1) is fixed on a train through bolts, the image acquisition equipment (2) is installed on the side wall of the mounting frame (1), the mounting frame (1) comprises a first transverse plate (11), a second transverse plate (12), a vertical plate (13), a baffle plate (14) and a cover plate (15), the bottom end of the cover plate (15) is movably connected with the second transverse plate (12) through a hinge, the top end of the cover plate (15) is in edge contact with the first transverse plate (11), the first transverse plate (11) and the second transverse plate (12) are both fixed on the side wall of the vertical plate (13), the vertical plate (13) and the first transverse plate (11) are both fixedly connected with the train through bolts, the image acquisition equipment (2) is installed on the second transverse plate (12), the image acquisition equipment (2) comprises an acquisition camera (21), a light supplement lamp (22) and a GPS (23), and the GPS (23) is installed above the second transverse plate (12), the lower surface of the second transverse plate (12) is provided with a collecting camera (21) and a light supplementing lamp (22), a GPS (global positioning system) positioner (23) is connected with the collecting camera (21) through a wire, the light supplementing lamp (22) is positioned on one side of the collecting camera (21), and the bottom end of the vertical plate (13) is provided with a baffle (14);

the implementation method comprises the following steps:

s1: the device is installed, the image acquisition device (2) is installed on the installation frame (1), an upper cover plate (15) needs to be sealed after the GPS positioner (23) is installed, an acquisition camera (21) and a light supplement lamp (22) in the image acquisition device (2) are installed on the rear side of the baffle (14) to avoid the image acquisition device directly facing the wind, and meanwhile, a lens of the acquisition camera (21) faces towards the inner side and the outer side of the rail;

s2: the method comprises the steps of operating to take a photo, carrying out continuous photographing on a rail and a sleeper by the image acquisition equipment (2) under the driving of a train to take a photo, and simultaneously obtaining an image with longitude and latitude information under the cooperation of the GPS (global positioning system) positioner (23)

The method ensures that the imaging can be realized once every N meters is driven, the determination of the N value can be determined according to the adopted camera visual field, and the acquired image is stored in real time in a format of geographical position N, S and the number x of pixels occupied by the rail in the image ₀ The number of pixels occupied by the crosstie ₀ ；

S3: image processing, in which the number of pixels of the rail and the sleeper in a single image is x, is calculated when the image processing is performed in order to detect the rail and the sleeper ₁ ,y ₁ Assuming that the number of pixels x of the rail in the image acquired when there is no sand between the rails ₀ Number of pixels y occupied by crosstie ₀ And is and

and is

If not, the local sand burying condition is indicated, otherwise, the local sand burying condition is indicated, data can be collected once every t days in the subsequent areas for detection, or the system is installed in each train, information is collected once in each train, and the obtained data is recorded after image processing;

s4: subsequent treatment of the region of interest, after the region of interest t _i The image collected at any moment is processed by digital image, and pixel elements occupied by the rail and the sleeper are calculated and recorded as x respectively _i ,y _i (i.gtoreq.2), calculating

And

and saving the sampling time t _i Sampling positions (N, S) and delta _i And beta _i If delta is larger than or equal to 40%, people need to be sent to carry out field inspection, and the buried sand is considered to be cleaned; if delta is more than or equal to 60 percent, the situation that the sand and dust are leveled with the height of the rail can occur, at the moment, the train is not safe to run, and the train is forbidden to pass;

s5: and (4) personnel check, when the system detects that the sand and dust are possibly leveled with the height of the rail, the system needs to send workers to a key area in time to carry out on-site inspection on the rail and remove the sand and dust.

2. The implementation method of the railway track sand burying degree monitoring device according to claim 1, characterized in that: the four acquisition cameras (21) are four in number, the four acquisition cameras (21) are divided into two pairs, and the two pairs of acquisition cameras (21) are arranged above the two sides of the rail in an inclined mode respectively.

3. The implementation method of the railway track sand burying degree monitoring device according to claim 1, characterized in that: the lenses of the light supplement lamp (22) and the collecting camera (21) face the inner wall and the outer wall of the rail.

4. The implementation method of the railway track sand burying degree monitoring device according to claim 1, characterized in that: the baffle (14) is a transparent acrylic plate.

5. The implementation method of the railway track sand burying degree monitoring device according to claim 1, characterized in that: the top end of the cover plate (15) is provided with a buckle (151) and a handle (152), and the cover plate (15) is connected with the first transverse plate (11) through the buckle (151).

6. The method as claimed in claim 1, wherein in S3, the image recognition after the image processing data processing shows that there is discontinuity, or delta, between the sleepers ₁ And delta ₂ If the condition is not met, the accumulated dust at the position is described, the corresponding image and the GPS information are stored and stored in a designated file, the sensor is instructed to encrypt and take a picture when arriving at the position in the future, the important monitoring positions detected and determined at the position are respectively marked as A (i), and i only indicates that a plurality of positions exist at the position.

7. The method as claimed in claim 1, wherein in S4, δ may appear in the process of subsequent treatment of the important area _i In case of rapid surge, i.e. obtaining a certain relation to t _i ,δ _i ,β _i After the data, can be to delta _i ,β _i The duration delta required to increase the fixed ratio is estimated, assuming that delta is based on the historical data obtained _i Increase from 40% to 60% takes 2 days, then delta is detected _i After the train approaches the set threshold value, related personnel need to be arranged in time to clean the train so as to ensure the running safety of the train.

8. The implementation method of the railway track sand burying degree monitoring device according to claim 1, wherein in the step S2, after the operation and the operation are combined, the image information data is transmitted to a remote control center in real time through a wireless data network, or the image information data is temporarily stored on a train to be transmitted to a terminal station, and a data relay station with a stable signal is transmitted to the control center.

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