JP6771318B2 - Infrastructure management methods and equipment - Google Patents

Description

The present invention relates to an infrastructure management method and device for managing facilities that are the basis of industrial and social life, and more particularly to an infrastructure management method and device for managing social infrastructure such as roads, bridges, and railway lines.

Our lives are various social infrastructures that form the basis of industrial and social life such as schools, hospitals, roads, ports, industrial land, public housing, bridges, railway lines, bus lines, water supply, sewerage, electricity, gas, and telephone. Supported by.
Among these social infrastructures, transportation-related social infrastructures such as roads, bridges, tunnels, and railway lines are obliged to carry out regular maintenance and inspections to ensure safety. Of these, on railway lines, the condition of overhead line equipment, railway tracks, track beds, etc. is monitored by a dedicated track inspection vehicle, etc., and used for maintenance and inspection operations. Conventionally, as a system for managing a railway line, a condition monitoring system for a railway overhead line facility described in Patent Document 1 can be mentioned.

Japanese Unexamined Patent Publication No. 2011-031643

The state monitoring system of the railway overhead line equipment described in Patent Document 1 is equipped with a preceding train equipped with a camera for imaging the railway overhead line equipment and data of the railway overhead line equipment in the normal state, and data of the railway overhead line equipment in the normal state. A data processing unit that captures the image captured by the camera of the preceding train and the rear train, and processes this image, a data storage unit that stores data after image processing, and image-processed data at normal times. By comparing with the data of the railway overhead line equipment of the above, it was judged whether or not to carry out a detailed investigation of the abnormality detection part of the railway overhead line equipment where the presence or absence of abnormality was detected, and it was judged that a more detailed investigation was necessary. In this case, a radio transmission / reception device for transmitting a detailed investigation command of the abnormality detection location of the railway overhead line equipment to the rear line vehicle is provided, and a detailed investigation of the abnormality detection location is performed on the rear queue vehicle based on the investigation command. The location of the abnormality has been confirmed.

A conventional infrastructure management method such as the state monitoring system for railway overhead line equipment described in Patent Document 1 obtains image data of railway overhead line equipment by running a train or inspection vehicle equipped with a camera along a track. Various processes are applied to the captured and captured image data to detect the presence or absence of an abnormality.
In addition, in the past, condition monitoring was performed regularly by inspection vehicles and track maintenance technicians, but the frequency is limited and it is difficult to improve the reliability and efficiency of inspections. For this reason, recently, a technique has been proposed in which an inspection device is mounted on a commercial train to monitor the track condition with high frequency.
However, these technologies can be used when a commercial train or inspection vehicle equipped with a conventional camera or inspection device cannot run, such as when a large-scale disaster such as an earthquake occurs, or when there is a problem or failure due to aging deterioration. It was not possible to consider cases where it is difficult to detect sudden abnormalities such as mischief or obstacles by regular condition monitoring. In addition, if the discovery of these events is delayed, a serious accident may occur.
The present invention has been made in view of the above points, and provides an infrastructure management method and device capable of providing real-time information on abnormal conditions that have occurred in social infrastructure such as roads, bridges, tunnels, and railway lines. The purpose is.

The first feature of the infrastructure management method according to the present invention is that a plurality of individual monitoring means for imaging a continuously constructed structure of a transportation social infrastructure are continuously arranged along the structure at predetermined intervals. Then, by comparing the image taken by the individual monitoring means with the reference image, the abnormality of the structure is detected, and the notification means group connected to the individual monitoring means is determined according to the detection result. The purpose is to notify that an abnormality has been detected in the structure.
This is because roads, bridges, tunnels, railway lines, etc., which are the structures of the social infrastructure of the transportation system, are continuously constructed, so some of them are defective or broken due to aging deterioration, abnormalities due to mischief, etc. When a tunnel or the like occurs, it affects the entire continuous structure, so it is desirable to detect the occurrence of an abnormality at an early stage. Therefore, in the present invention, a plurality of simple camera systems such as a smartphone with a camera are continuously arranged along roads, bridges, tunnels, and railway lines as individual monitoring means, and each individual monitoring means photographs in advance. The existing reference image and the image currently being photographed are compared in real time, and if a different part exists as a result of the comparison processing, it is detected as an abnormality. When an abnormal part is detected, the detection result is judged by computer processing or artificial processing, and the occurrence of the abnormality is notified by using the notification means connected to the individual monitoring means according to the judgment result. As the notification means, a visually recognizable object such as a revolving light can be confirmed from a relatively long distance, and is suitable. It is possible to notify the degree of abnormality by making the color of a revolving light different.

The second feature of the infrastructure management method according to the present invention is that in the infrastructure management method described in the first feature, a continuous railway line which is a structure of the transportation social infrastructure and a railway overhead line facility accompanying the continuous railway line. When an abnormality in the railway line and the railway overhead line equipment associated therewith is detected by a plurality of the individual monitoring means, a plurality of before and after including the individual monitoring means in which the abnormality is detected according to the detection result. The purpose is to notify using the notification means.
It monitors railway lines and associated railway overhead lines as a structure of transportation-related social infrastructure. In particular, since railway lines and railway overhead line facilities are highly continuous, individual monitoring means are continuously provided along the railway lines, and the railway lines and railway overhead line facilities are continuously photographed by the plurality of individual monitoring means provided. By monitoring, it is possible to detect the occurrence of an abnormality in real time and easily identify the location of the abnormality. In addition, when the occurrence of an abnormality is detected, the railway vehicle can be visually notified by using a plurality of notification means before and after the abnormality, including the individual monitoring means for detecting the abnormality, before the railway vehicle reaches the abnormality occurrence location. It will be possible to decelerate, slow down and stop. In particular, since the power transmission overhead line supports, which are railway overhead line facilities, are provided at intervals of about 50 to 100 [m], it is preferable to provide individual monitoring means for each power transmission overhead line support.

The third feature of the infrastructure management method according to the present invention is that when the individual monitoring means detects an abnormality in the infrastructure management method described in the second feature, the individual monitoring means in the vicinity of the individual monitoring means When the detected abnormality is notified from the notification means group connected to the individual monitoring means, or when the individual monitoring means receives confirmation of the presence or absence of an abnormality from the vehicle management office or the like due to the occurrence of a disaster such as an earthquake. In addition, by error detection processing that compares at least two images in the abnormality detection image, the current state image, and the reference image, the positional relationship between the rails of the railway track, the railway overhead line, and the equipment attached thereto is detected. It is determined whether the degree of abnormality or change is within the travelable range of the inspection vehicle or the restoration work vehicle, and the result is notified using the notification means group connected to the individual monitoring means. It is to be a feature.
This is a railroad track by comparing two images in the image at the time of abnormality detection and the reference image, the current image and the reference image after the abnormality detection, the image at the time of abnormality detection and the current image, and error detection processing based on the comparison result. Detects the positional relationship between the rails and railroad overhead lines and the equipment associated with them, determines whether the degree of abnormality or change is within the travelable range of the inspection vehicle or restoration work vehicle, and determines the result. The communication function of the individual monitoring means is used to notify the vehicle management office, etc., and the final inspection vehicle and the restoration work vehicle can be instructed to determine the driving instruction. It is desirable to perform all the comparisons of the above-mentioned images, but it is also possible to use only the comparison result of the image at the time of abnormality detection and the reference image. Further, since the image at the time of abnormality detection includes both the image immediately before the occurrence of the abnormality and the image after the occurrence of the abnormality, only the image at the time of abnormality detection including the immediately preceding image and the image after the abnormality may be compared. However, the image immediately before the abnormality is detected may be compared with the current image.

The fourth feature of the infrastructure management method according to the present invention is to measure the degree of abnormality or change in the reference image or the information accompanying the reference image in the infrastructure management method described in the third feature. The dimensional information of the above is provided in advance, and the positions of the rail of the railroad track, the railroad overhead line, and the equipment associated therewith are detected by the error detection process by comparing the abnormality detection image, the current state image, and the reference image. The relationship is to be detected based on the dimensional information.
This is because it is very useful for railway rail management to provide the degree of abnormality or change as information by dimensions, so the degree of abnormality or change (change amount) is measured in the reference image or the information accompanying the reference image. Dimensional information for dimensional measurement is provided in advance for this purpose, and the degree of abnormality or change is detected based on the dimensional information. The second, third, and fourth features are mentioned in the case of monitoring railway lines and associated railway overhead line facilities as a structure of social infrastructure for transportation, but other roads. , Bridges, tunnels, etc., by executing error detection processing for abnormal parts (road damage, road depressions, falling objects, cracks, cracks, steps and deviations, distance between play, other failures, etc.) , The positional relationship, etc. can be detected.

The first feature of the infrastructure management device according to the present invention is that a plurality of structures of the transportation social infrastructure constructed continuously are continuously arranged at predetermined intervals along the structures in order to photograph the structures, respectively. An abnormality detecting means for detecting an abnormality in the structure and an abnormality detecting means for detecting an abnormality in the structure by comparing the individual monitoring means group having the notification means with the image taken by the individual monitoring means group and the reference image, respectively. It is provided with a control means for notifying that an abnormality has been detected in the structure by using the notifying means connected to the individual monitoring means according to the detection result.
This is an invention of an infrastructure management device corresponding to the first feature of the infrastructure management method.

The second feature of the infrastructure management device according to the present invention is that in the infrastructure management device described in the first feature, the individual monitoring means group is a continuous railway line and a structure of the transportation social infrastructure. When the control means detects an abnormality in the railway line and the railway overhead line equipment associated therewith by photographing the railway overhead line equipment accompanying the abnormality, the individual monitoring means in which the abnormality is detected according to the detection result. The purpose is to notify the outside by using the notification means connected to the plurality of individual monitoring means before and after including the above.
This is an invention of an infrastructure management device corresponding to the second feature of the infrastructure management method.

The third feature of the infrastructure management device according to the present invention is that when the individual monitoring means detects an abnormality in the infrastructure management device described in the second feature, the individual monitoring means in the vicinity of the individual monitoring means When the detected abnormality is notified from the notification means group connected to the individual monitoring means, or when the individual monitoring means receives confirmation of the presence or absence of an abnormality from the vehicle management office or the like due to the occurrence of a disaster such as an earthquake. In addition, by error detection processing that compares at least two images in the abnormality detection image, the current state image, and the reference image, the positional relationship between the rails of the railway track, the railway overhead line, and the equipment attached thereto is detected. It is decided to judge whether the degree of abnormality or change is within the travelable range of the inspection vehicle and the restoration work vehicle, and notify the result using the notification means group connected to the individual monitoring means. is there.
This is an invention of an infrastructure management device corresponding to the third feature of the infrastructure management method.

The fourth feature of the infrastructure management device according to the present invention is to measure the degree of abnormality or change in the reference image or the information accompanying the reference image in the infrastructure management device described in the third feature. The dimensional information of the above is provided in advance, and the positions of the rail of the railroad track, the railroad overhead line, and the facilities associated therewith are detected by the error detection process by comparing the abnormality detection image, the current state image, and the reference image. The relationship is to be measured based on the dimensional information.
This is an invention of an infrastructure management device corresponding to the fourth feature of the infrastructure management method.

According to the infrastructure management method and device of the present invention, there is an effect that information on an abnormal state generated in social infrastructure such as roads, bridges, tunnels, and railway lines can be provided in real time.

It is a figure which shows an example of the infrastructure management method and the device which can provide the information about the abnormal state of the overhead wire equipment of a railway line in real time. It is a figure which shows an example of the image taken by the individual monitoring device. It is a figure which shows an example of the operation which becomes the reference of the infrastructure management method which monitors the abnormal state of the overhead wire facility of the railroad line of this invention. It is a figure which shows an example of the operation of the infrastructure management method which monitors the abnormal state of the overhead wire facility of the railroad line of this invention by using the dimension measurement processing. It is a figure which shows the specific example of the individual monitoring apparatus which lights / blinks in red and yellow. It is a figure which shows the specific example of the installation place of an individual monitoring device.

Hereinafter, preferred embodiments of the infrastructure management method and apparatus according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing an example of an infrastructure management method and device capable of providing information on an abnormal state of overhead wire equipment on a railway line in real time. FIG. 1 (A) shows an outline of a railway line from A station to Z station. FIG. 1 (B) shows an enlarged part of the section between stations B and C in FIG. 1 (A). In FIG. 1B, there are five power transmission overhead line supports 11 to 15, and individual monitoring devices B51 to B55 are installed on the upper side of each power transmission overhead line support 11 to 15. The distance between the power transmission overhead wire supports 11 to 15 is about 50 to 100 [m], respectively. This interval is an example, and there are more or less intervals.

The individual monitoring devices B51 to B55 have a built-in smartphone function with a camera in a semi-dome-shaped transparent protective cover. This smartphone function with a camera has a camera function, a recording function, a memory function, a communication function, an image processing function, and the like. The images used by the camera-equipped smartphone function for determination are near-infrared images, X-ray images, visible light images, and other images in which an abnormality to be detected is easily detected. The determination distance by the camera-equipped smartphone function is about 70 to 200 [m]. The individual monitoring devices B51 to B55 are provided with rotating lights of two colors. When an abnormality is detected, the rotating lights of the individual monitoring devices B51 to B55 within about 1 [km] before and after the track are configured to light / blink red or yellow to indicate the abnormality. The red rotating light indicates danger, and the train driver who sees it stops the running train. In addition, the yellow revolving light indicates caution due to the existence of a dangerous condition in the future, and the train driver who sees this indicates slow-moving operation.

The smartphone function with a camera is equipped with an internal memory that can store the reference image in the normal state and the image taken for 2 hours before the abnormality, and the taken image is sent to the infrastructure management center etc. in real time or at a predetermined time interval. Will be sent. The power to the smartphone function with a camera of the individual monitoring devices B51 to B55 is usually supplied from a part of the power transmission overhead line as an auxiliary power source that can switch between the self-supporting solar battery provided outside and the rechargeable battery. It is possible. Even when it is difficult to supply power from the overhead line for power transmission due to a disaster or the like, consideration is given so that it can be operated using a self-supporting solar battery and a rechargeable battery.

The smartphone function with a camera in the individual monitoring devices B51 to B55 has communication functions such as 3G, 4G (LTE), mobile WiMAX, and wireless LAN, and can communicate with the base station of the mobile communication network by these. .. In addition, mutual communication is possible between a plurality of neighboring individual monitoring devices set in advance by wireless LAN or the like, and even if the adjacent individual monitoring device cannot communicate due to a failure or the like, communication of the entire individual monitoring device is possible. It has a complementary function so that the information will not be interrupted.

The mobile communication network 2 is a communication service network provided by a mobile phone service company such as a mobile phone or PHS. The smartphone function with a camera in the individual monitoring devices B51 to B55 is connected to the mobile communication network 2. Further, the mobile communication network 2 is connected to the network (Internet) 4 via the ISP (Internet Service Provider) 3. On the other hand, the infrastructure management method and the central processing unit 6 of the device are arranged in the infrastructure management center in a remote location away from the place where the individual monitoring devices B51 to B55 are installed, and are connected to the network (Internet) 4 via the ISP 5. Will be done. A plurality of monitors are installed in the vehicle management office and the like, and are configured to display abnormal images and the like transmitted from the individual monitoring devices B51 to B55 by the central processing unit 6 in real time. The communication line 7 is a communication service provided by a public telephone service company such as a fixed telephone. Therefore, the central processing unit 6 can be individually connected to the camera-equipped smartphone functions in the individual monitoring devices B51 to B55 via the communication line 7 and the mobile communication network 2.

FIG. 2 is a diagram showing an example of an image taken by an individual monitoring device. The image of FIG. 2 is a schematic view showing an image of a railway overhead line facility including power transmission overhead line supports 12 and 13 taken by a smartphone function with a camera of the individual monitoring device B51. In FIG. 2, as overhead wire equipment installed on the overhead wire supports 12 and 13 for power transmission, feeder wires 20R and 20L, feeder branch wires 21, trolley wires 22R and 22L, overhead wires 23R and 23L, hangers 24R and 24L, respectively. The curved feeder 25, the high-voltage distribution line 26, and the like are displayed on the upper side of the image. Further, in FIG. 2, rails 27L, 27R, 28L, and 28R corresponding to the vertical lines are displayed on the lower side of the image, respectively. Since the image of FIG. 2 was taken by the smartphone function with a camera of the individual monitoring device B51, the images taken by other individual monitoring devices B52 to B55 and the like are different from those of FIG. 2, respectively. The illustration is omitted.

FIG. 3 is a diagram showing an example of the operation of the infrastructure management method for monitoring the abnormal state of the overhead wire facility of the railway line of the present invention. FIG. 3 is a diagram showing an example of a railway overhead line facility photographed by a smartphone function with a camera of an individual monitoring device. In FIG. 3, rails 27L, 27R, 28L, 28R showing gentle curves, a group of power transmission overhead wire support parts arranged along the rails 27L, 27R, 28L, 28R, taken by an individual monitoring device, and the upper part of these power transmission overhead wire support parts. The group of individual monitoring devices installed in the above and the trolley lines 22R and 22L are displayed. FIG. 3A is a normal image without any abnormality, and this is a reference image.

FIG. 3B is a diagram showing an example of an image when some abnormality occurs in the rail 28R. In the image of FIG. 3B, a portion 29 in which a part of the rail is missing due to some abnormality occurring in the rail 28R is photographed. By performing an error detection process (predetermined image processing) for comparing the image (image at the time of abnormality detection) of FIG. 3 (B) with the reference image (image at the time of normal) of FIG. 3 (A), the abnormal portion The existence of 29 and the content of the abnormality are clarified, and as a result of the error detection process, the position of the abnormality portion 29 and the content of the abnormality in which a part of the rail is missing are detected.

In the individual monitoring device, the cause is "abnormality of high importance", which is judged to be impossible to drive due to concerns about derailment, collision, etc., depending on the content of the abnormality detected in advance, poor visibility, poor image, defective individual monitoring device, etc. Judges which of the "abnormalities that cannot be judged to be of high importance" that requires confirmation and detailed investigation to judge the importance, and depending on the judgment result, an abnormality detection image to the vehicle management office, etc. Transmission processing, lighting / blinking processing of rotating light, etc. are executed.

The individual monitoring device B54, which detected the position of the abnormal part 29 and the "abnormality of high importance" of the partial omission of the rail according to FIG. 3, took the image of the abnormal part 29 detected in the vehicle management office. Etc., and the abnormality detection information is transmitted to the individual monitoring device B54 itself and the six individual monitoring devices B51 to B57 before and after the individual monitoring device B54 to turn on / blink the rotating light in red. In addition, information on abnormality detection is transmitted to the 16 individual monitoring devices B43 to B50 and B58 to B65 before and after that, and the rotating light is turned on / blinks in yellow. This makes it possible to instruct the train driver near the individual monitoring device that displays the revolving light in yellow to slow down, and to instruct the driver of the train near the individual monitoring device that displays the revolving light in red to stop the operation. It is possible to prevent the occurrence of such accidents.

When the individual monitoring device B54 detects another abnormality that is determined to be "an abnormality that cannot be determined to be of high importance", the image of the detected abnormality is transmitted to the vehicle management office or the like, and the individual monitoring device B54 itself. And the information of abnormality detection is transmitted to the eight individual monitoring devices B46 to B62 before and after that, and the rotating light is turned on / blinked in yellow. This makes it possible to instruct train drivers near the individual monitoring device that displays a rotating light in yellow to drive slowly, and accidents occur when there is an abnormality on the track by checking the abnormality detection site by slow driving. Can be prevented in advance.

At the vehicle management office or the like where the information on the abnormality detection and the image of FIG. 3 (B) are transmitted from the individual monitoring device B54 that has detected the abnormal portion 29, the received abnormal portion 29 is photographed in FIG. 3 (B). Based on the image, it is determined whether it corresponds to "an abnormality of high importance" or "an abnormality that cannot be determined to be of high importance", and processing is executed according to the determination result.

When it is determined that the abnormality is of high importance, the rotating lights of the individual monitoring devices B51 to B57 including the individual monitoring device B54 that detected the abnormality part 29 are continuously lit / blinked in red. In addition, by taking measures such as instructing the drivers of all other affected trains to stop operation, the occurrence of secondary accidents can be prevented. In addition, when an inspection vehicle or work vehicle is required for the abnormal location 29 for detailed investigation or restoration, whether or not the vehicle can travel to the abnormal location 29 is transmitted from the individual monitoring device on the route to the abnormal location 29. The judgment can be made by checking the real-time image.

When it is determined that "an abnormality cannot be determined to be of high importance", the rotating lights of the eight individual monitoring devices B46 to B62 including the individual monitoring device B54 that detected the abnormal part 29 are continuously lit / blinked in yellow. While keeping it, instruct the driver of the train near the individual monitoring device that displays the rotating light in yellow to slow down and check the abnormality detection site. As a result of the confirmation, if there is an abnormality in the railroad track, it is possible to prevent the occurrence of a secondary accident by performing processing such as instructing all train drivers to stop the operation.
Further, when there is no abnormality in the line, the cause of the abnormality detected by the individual monitoring device B54 is eliminated, and normal operation without any abnormality is instructed.
In the image of FIG. 3B, a state in which the individual monitoring device B54 and the like are lit / blinking is photographed.

FIG. 4 is a diagram showing an example of the operation of the infrastructure management method for monitoring the abnormal state of the overhead wire facility of the railway line of the present invention by using the dimension measurement process, and is a diagram showing the presence or absence of abnormality of the overhead wire facility of the railway line of FIG. An example of a method of measuring the degree of change and the degree of change using information (dimension information) for dimension measurement processing is shown. In FIG. 4, measuring rods 30 to 33 for dimensional measurement processing are installed in the vicinity of the vertical columns of the overhead wire supports 11 to 14 for power transmission. As a result, as shown in the reference image of FIG. 4A, dimensional information for dimensional measurement processing of the degree of change (change amount) at the time of abnormality is added to the image.

When some abnormality occurs in the rail 28R as described above, as shown in FIG. 4B, a portion 29 in which a part of the rail 28R is missing is photographed on the image. First, the existence of the abnormal portion 29 is determined by performing an error detection process for comparing the image of FIG. 4 (B) (image at the time of abnormality detection) with the reference image (image at the time of normal) of FIG. 4 (A). The content of the abnormality is clarified, and as a result of the error detection process, the content of the abnormality where the position of the abnormality portion 29 and the rail 28R are partially missing is detected.

Next, the position of the abnormal portion 29 and the size of the partial omission of the rail 28R are measured based on the dimensional information of the measuring rods 31 to 32 close to the position of the abnormal portion 29, and the dimensional measurement process is executed. Calculate the position of the partial omission and the dimension of the partial omission. This makes it possible to grasp the position and size of the abnormality in more detail.

Further, in order to determine whether or not the inspection vehicle or the work vehicle can travel to the position of the abnormal portion 29, the rail width (1067 [mm] at the positions of the power transmission overhead wire supports 13 and 14 is shown in FIG. 4 (B). ]) And the position of the trolley wire (distance from the left and right rails 5204 to 5205 [mm]) are dimensionally measured. In FIG. 4B, the distance between the rails 27L and 27R and the positional relationship of the trolley wire 22L at the positions of the power transmission overhead wire supports 13 and 14 and the positional relationship between the rails 28L and 28R and the trolley wire 22R are displayed in a triangular shape. Shown. Based on this measured value, it is judged whether the inspection vehicle or work vehicle can run. For example, if possible, the number is displayed in green, and if not, it is displayed in red. Display the number, etc. to the vehicle management office, etc. Executes the transmission processing of the abnormality detection image of. By measuring the distance between the rails 27L and 27R and the positional relationship of the trolley wire 22L at the positions of the power transmission overhead wire supports 12 and 13, and the positional relationship between the rails 28L and 28R and the trolley wire 22R, an abnormal location is found. It is possible to measure the distance (4320 [mm]) from the power transmission overhead wire support 13 of 29 and the length (2580 [mm]) of the missing rail 28R. Similarly, for roads, bridges, tunnels, etc. other than the overhead line facilities of railway lines, abnormal parts (road damage, depression holes in roads, falling objects, cracks, cracks, steps and deviations, distance between play, other failures, etc.) By executing the error detection process, it is possible to detect the positional relationship and the like.

FIG. 5 is a diagram showing a specific example of an individual monitoring device that lights / blinks in red and yellow. FIG. 5 schematically shows individual monitoring devices B39 to B67 installed on the upper side of the power transmission overhead line support of FIG. 1B. When the abnormal portion 29 is detected in the image from the individual monitoring device B54 as described above, as shown in FIG. 5, the individual monitoring device B54 is included, and about 6 individual monitoring devices B51 to B57 before and after the individual monitoring device B54. The revolving light lights / blinks in red, and the revolving lights of about 16 individual monitoring devices B43 to B50 and B58 to B65 before and after the revolving light turn on / blink in yellow. As a result, the driver or the like who has entered the vicinity of the individual monitoring devices B43 to B50 and B58 to B65 instantly recognizes that an abnormality has occurred in the vicinity of the individual monitoring devices B51 to B57 by lighting / blinking yellow. be able to. It is possible to check for abnormalities by slowly driving or stopping the vehicle. To check for abnormalities, contact the vehicle management office, etc., or actually go out to the railroad tracks, etc.

FIG. 6 is a diagram showing a specific example of the installation location of the individual monitoring device. In FIG. 6A, individual monitoring devices 41 and 42 are installed on the overhead wire pillar beside the platform, and the track is photographed. In FIG. 6A, an abnormal state in which earth and sand flowed out onto the track is photographed. In FIG. 6B, an individual monitoring device 43 is installed on an overhead wire pillar near a railroad crossing, a railroad crossing alarm, or the like, and the state inside the railroad crossing and the state of the line are photographed. In FIG. 6C, an individual monitoring device 44 is installed on the ceiling inside the tunnel, and a state in the vicinity of the tunnel is photographed. In FIG. 6D, an individual monitoring device 45 is installed on a dedicated pillar or the like on a track where no overhead wire exists, and the track is photographed. In FIG. 6D, an abnormal state in which sediment trees and the like flowed out onto the track due to a landslide was photographed. In FIG. 6 (E), an individual monitoring device 46 is installed under the pedestrian bridge, and the track is photographed. In FIG. 6 (F), an individual monitoring device 47 is installed under the overpass and the track is photographed.

In the above-described embodiment, the overhead line equipment of the railway line has been described as an example of the infrastructure, but the same can be applied to other transportation-related social infrastructures such as roads, bridges, and tunnels. For example, it can be dealt with by continuously providing a plurality of individual monitoring devices along the road, or continuously at the entrance / exit of a bridge or a tunnel or in the middle thereof.
Further, in the above-described embodiment, the case of comparing the image of FIG. 3 (B) (image at the time of abnormality detection) and the reference image (image at the time of normal) of FIG. 3 (A) has been described. The current state image after that may be compared with the reference image, or the image immediately before the abnormality detection and the current state image immediately after that may be compared. That is, an error detection process may be executed in which at least two images in the abnormality detection image, the current image, and the reference image are appropriately compared. Further, assuming that the image at the time of abnormality detection includes both the image immediately before the occurrence of the abnormality and the image after the occurrence of the abnormality, even if the image immediately before the image and the image before and after the time of abnormality detection including the image after the abnormality are compared. Alternatively, the image immediately before the abnormality is detected may be compared with the current image.

11 to 15 ... Transmission overhead wire support, 2 ... Mobile communication network, 20L, 20R ... Feeder wire, 21 ... Feeder branch line, 22L, 22R ... Trolley line, 23L, 23R ... Overhead line, 24L, 24R ... Hanger, 25 ... Curved feeder, 26 ... High-voltage distribution line, 27L, 28R ... Rail, 29 ... Abnormal location, 30-33 ... Measuring instrument, 3,5 ... Internet Service Provider, B39-B67 ... Individual monitoring device, 41- 47 ... Individual monitoring device, 6 ... Central processing device, 7 ... Communication line

Claims (8)

A plurality of individual monitoring means for imaging a structure of a continuously constructed transportation social infrastructure are continuously arranged along the structure at predetermined intervals, and an image and a reference image taken by the individual monitoring means are provided. By comparing each of the above, the abnormality of the structure is detected, and it is visually recognized that the abnormality is detected in the structure by using the notification means provided in each of the individual monitoring means according to the detection result. It is an infrastructure management method that informs as much as possible.
It is an intercommunication means capable of communicating with a plurality of neighboring individual monitoring means, and the intercommunication means provided by each of the individual monitoring means corresponds to the abnormality detection result of the structure. The abnormality detection information of the structure is transmitted to a plurality of individual monitoring means existing in the vicinity of the detected individual monitoring means, and the detection of the abnormality in the structure means that the individual that has detected the abnormality of the structure. Visibly notify by using the notification means of the plurality of individual monitoring means existing in the vicinity of the monitoring means.
Normally, power is supplied from the power transmission means to the individual monitoring means, and when it is difficult to supply power from the power transmission means due to a disaster or the like, the auxiliary power supply means provided by each of the individual monitoring means is used. An infrastructure management method characterized by supplying electric power to the individual monitoring means. In the infrastructure management method according to claim 1, a continuous railroad line which is a structure of the transportation system social infrastructure and a railroad overhead line facility associated therewith are photographed by a plurality of the individual monitoring means, and the railroad line and the railroad line and the like. When an abnormality in the railway overhead line equipment associated with the above is detected, the railway line and the above-mentioned railway line and a plurality of individual monitoring means existing in the vicinity of the individual monitoring means for detecting the abnormality of the railway overhead line equipment associated therewith are Abnormality detection information of the accompanying railway overhead line equipment is transmitted via the mutual communication means, and it is possible to visually recognize that an abnormality has been detected in the railway line and the railway overhead line equipment attached thereto by using the notification means. An infrastructure management method characterized by notifying. In the infrastructure management method according to claim 2, when the individual monitoring means detects an abnormality, the notification means provided in the individual monitoring means notifies the abnormality detected by the individual monitoring means in the vicinity of the individual monitoring means. When the individual monitoring means receives confirmation of the presence or absence of an abnormality from the vehicle management office, etc. due to a disaster such as an earthquake, at least 2 of the abnormality detection image, the current state image, and the reference image The error detection process that compares two images detects the positional relationship between the rails of the railroad track, the railroad overhead line, and the equipment attached to them, and the degree of abnormality or change can be measured by the inspection vehicle or the restoration work vehicle. An infrastructure management method characterized in that it is determined whether or not it is within a certain range, and the result is notified by using the notification means provided in each of the individual monitoring means. In the infrastructure management method according to claim 3, dimensional information for measuring the degree of abnormality or change is provided in advance in the reference image or information accompanying the reference image, and the image at the time of abnormality detection, the said. It is characterized in that the positional relationship between the rails of the railway line, the railway overhead line, and the equipment attached thereto detected by the error detection process by comparing the current image and the reference image is detected based on the dimensional information. Infrastructure management method to do. A group of individual monitoring means, each of which is continuously arranged at predetermined intervals along the structure in order to photograph a structure of a continuously constructed transportation-related social infrastructure, and each of which has a notification means.
An abnormality detecting means for detecting an abnormality in the structure by comparing an image taken by the individual monitoring means group with a reference image, respectively.
An infrastructure management device provided with a control means for visually notifying that an abnormality has been detected in the structure by using the notification means connected to the individual monitoring means according to the detection result of the abnormality detection means. There,
Each of the individual monitoring means includes mutual communication means capable of communicating with a plurality of neighboring individual monitoring means, and the abnormality detection information of the structure according to the abnormality detection result of the structure. Is transmitted to a plurality of individual monitoring means existing in the vicinity of the detected individual monitoring means, and the fact that an abnormality is detected in the structure is present in the vicinity of the individual monitoring means in which the abnormality in the structure is detected. By using the notification means of the plurality of individual monitoring means to perform visual notification,
Further, the individual monitoring means usually receives power from the power transmission means to the individual monitoring means, and when it is difficult to supply power from the power transmission means due to a disaster or the like, the individual monitoring means of the individual monitoring means. An infrastructure management device characterized in that power is supplied using the auxiliary power supply means provided by each. In the infrastructure management device according to claim 5, the individual monitoring means group photographs a continuous railway line which is a structure of the transportation system social infrastructure and a railway overhead line facility associated therewith, and the control means means. When an abnormality is detected in the railway line and the railway overhead line equipment associated therewith , the plurality of individual monitoring means existing in the vicinity of the individual monitoring means for detecting the abnormality in the railway line and the railway overhead line equipment associated therewith are described. The abnormality detection information of the railway line and the railway overhead line equipment associated therewith is transmitted via the mutual communication means, and the notification means that the abnormality is detected in the railway line and the railway overhead line equipment attached thereto is notified. An infrastructure management device characterized by being visually notified by using it. When the individual monitoring means detects an abnormality in the infrastructure management device according to claim 6, the notification means provided in the individual monitoring means notifies the abnormality detected by the individual monitoring means in the vicinity of the individual monitoring means. When the individual monitoring means receives confirmation of the presence or absence of an abnormality from the vehicle management office, etc. due to a disaster such as an earthquake, at least 2 of the abnormality detection image, the current state image, and the reference image The error detection process that compares two images detects the positional relationship between the rails of the railroad track, the railroad overhead line, and the equipment attached to them, and the degree of abnormality or change can be measured by the inspection vehicle or the restoration work vehicle. An infrastructure management device characterized in that it determines whether or not it is within a certain range, and notifies the result by using the notification means provided in each of the individual monitoring means. In the infrastructure management device according to claim 7, dimensional information for measuring the degree of abnormality or change is provided in advance in the reference image or information accompanying the reference image, and the abnormality detection image, the said. It is characterized in that the positional relationship between the rails of the railway line, the railway overhead line, and the equipment attached thereto detected by the error detection process by comparing the current image and the reference image is measured based on the dimensional information. Infrastructure management equipment.

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