JP2011210173A - Conduit patrol evaluation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conduit patrol evaluation system for easily evaluating conduit patrol by a patrolling vehicle to a conduit route as an object to be patrolled and monitored.SOLUTION: The conduit patrol evaluation system is configured to cooperate with a car navigation device loaded on a patrolling vehicle for monitoring the peripheral situations of a conduit buried underground. The system is provided with: a conduit information processing means for creating a conduit route specified by a map position based on conduit information including the map position of a conduit; a route matching part for matching the travel route of the patrolling vehicle specified based on a self-vehicle position obtained from the car navigation device with a conduit route included in the conduit information; and a conduit patrol evaluation part for evaluating the patrol travel of the patrolling vehicle by calculating the degree of patrol to the conduit route based on patrol recording information in which the travel route is linked with the conduit route matched with the travel route.

Description

  The present invention relates to a conduit patrol evaluation system that cooperates with a car navigation device mounted on a patrol vehicle that monitors the surrounding situation of underground buried objects such as conduits buried underground.

  There is known a patrol monitoring navigation device used when patrol monitoring is performed as a maintenance work for underground buried objects such as water pipes and gas pipes (for example, see Patent Document 1). This navigation device for patrol monitoring stores current position detecting means for detecting a current position, map data acquiring means for acquiring map data, display means for displaying the map data as a map screen, and information relating to underground objects. A portable storage medium, and control means for displaying the information relating to the underground buried object read from the portable storage medium and the information relating to the current position on the map screen displayed on the display means. It is a thing. With this configuration, the patrol monitoring worker can perform maintenance management on the map screen while corresponding to the information on the current position on the map screen even at night, during snowfall, and the like.

  Such a navigation monitoring navigation device is convenient for periodically and periodically monitoring underground buried objects such as water pipes and gas pipes managed by the company. However, since it is impossible for a dedicated tour supervisor to perform the patrol of the pipes that run around the local road network, such as gas pipes, it is impossible to follow the road network for various other purposes. In many cases, a moving vehicle (worker) monitors a conduit network embedded along the road network using the movement opportunity. In such tours, the network of pipes is only monitored randomly, and there are conduit sections that are repeatedly monitored and conduit sections that are not monitored at all or little, but no countermeasures are taken into account.

  In order to effectively perform work analysis for work to inspect and maintain gas main piping, a travel locus management system that can clearly grasp the difference between the travel locus of the work vehicle and the original patrol route has been proposed. (For example, refer to Patent Document 2). This traveling locus management system includes a center device and an in-vehicle device, and the in-vehicle device stores a registered course for patroling a plurality of inspection points for confirming the state of piping buried underground. Course storage means, position measurement means for measuring the position of the work vehicle using a geodetic satellite, and travel locus storage means for storing the travel locus of the work vehicle from the position measured by the position measurement means, The center device compares the registered course stored in the registered course storage means of the in-vehicle device with the travel locus of the work vehicle stored in the travel locus storage means to obtain a travel deviation rate. A travel deviation rate calculating means is provided. The registered course storage means of the in-vehicle device reads and stores the pipe position information, pipe state inspection point information, and inspection point inspection route information stored in the memory card. After the patrol using the in-vehicle device is completed, a patrol report is created by the worker, and the information, information on the traveling track of the work vehicle, and the like are stored in the memory card and then uploaded to the center device. A deviation rate between the traveling track of the work vehicle and the registered course is determined by the center device, and the result is visually displayed on the monitor. This traveling track management system only knows how much the traveling track of the work vehicle is different from the original registered course route, and is actually for the conduit route to be visited. There is no assessment of the pipeline tour, such as how much of the pipeline route is being monitored.

Japanese Patent Laying-Open No. 2004-279172 (paragraph number [0006-0013], FIG. 1) JP 2008-65421 A (paragraph number [0005-0022], FIG. 4)

  In view of the above circumstances, the object of the present invention is to easily evaluate the pipeline tour such as the extent of the conduit route actually patroled by the patrol vehicle with respect to the conduit route to be monitored. It is to provide a possible pipeline patrol evaluation system.

  In order to achieve the above-mentioned object, the conduit patrol evaluation system according to the present invention, which cooperates with a car navigation device mounted on a patrol vehicle for monitoring the surrounding situation of a conduit buried underground, includes a map position of the conduit. A memory device storing conduit information; a conduit information processing means for generating a conduit route defined by a map position based on the conduit information read from the memory device; and a vehicle position obtained from the car navigation device A route matching unit for matching the travel route of the vehicle based on the above and the conduit route included in the conduit information, and a tour record information that links the travel route and the conduit route matched to the travel route Based on the record information generation unit and the tour record information, the degree of patrol for the conduit route is calculated to evaluate the traveling of the patrol vehicle. And a conduit patrol evaluation unit that performs.

  According to this configuration, the travel route actually traveled by the traveling vehicle is subjected to matching processing with the conduit route to be monitored, and traveling record information is generated by linking the conduit route matched with the travel route to the travel route by this matching processing. The Therefore, from this patrol record information, it is possible to calculate the degree of patrol, which is the relationship between the conduit route that the patrol vehicle was able to monitor and the conduit route that could not be patrol, with respect to the actual travel route of the patrol vehicle. It is possible to easily perform the traveling traveling evaluation.

  In one preferred embodiment of the present invention, as the degree of patrol, a ratio of a travel route linked to a conduit route and / or a frequency of a travel route linked to a partial conduit route are adopted. is doing. In other words, in the former, the length of the travel route that was traveled while patrol monitoring, that is, the travel that was able to be matched with the length of the conduit route that is the subject of patrol monitoring in the area assigned to the patrol vehicle or in the jurisdiction of this system. The ratio of the length of the route is the degree of patrol. In the latter case, the pipeline route that is subject to patrol monitoring is divided into multiple parts, the number of times the divided conduit route part is patrol-monitored by the patrol vehicle, and the patrol monitoring frequency for each conduit route part is defined as the degree of patrol. To do. As a result, it is possible to evaluate the pipeline tour with simple statistical processing.

  When the area to be evaluated is a narrow area, the pipeline tour evaluation in the present invention is preferably performed for each tour vehicle by including a conduit tour evaluation unit for each tour vehicle. Looking at the degree of patrol of the patrol vehicle, the driver may intensively patrol where the patrol is short. It is effective in terms of patrol monitoring if you travel in a place where the patrol is weak even if you make a detour. In addition, when the area to be evaluated is a wide area, the pipeline patrol evaluation unit calculates the degree of patrol based on the patrol record information collected from a large number of patrol vehicles and conducts a comprehensive duct patrol evaluation for the entire jurisdiction. Is preferably provided on the center side. As an embodiment for achieving the former purpose, the conduit tour evaluation unit includes an individual conduit tour evaluation unit that calculates the tour travel evaluation based on tour record information of a single traveling vehicle. Is suitable. Further, as an embodiment for achieving the latter purpose, the conduit traveling evaluation unit calculates the traveling traveling evaluation based on the traveling record information of the traveling vehicles belonging to the center, and performs the entire traveling evaluation. A configuration including a center side conduit patrol evaluation unit to be performed is suitable.

  As one of preferred embodiments of the present invention, the memory device is affected by security target area data relating to a security target area that is an influence range of a third party construction performed around the conduit, and the third party construction. 3rd party construction management information including the conduit data to be secured relating to the fusible conduit is stored, and the third party construction management information processing unit that reads the third party construction management information by accessing the memory device, and is obtained from the car navigation device. A security target area determination unit that determines a construction area of another company located around the vehicle position as a security target area, and the traveling record information generation unit matches the travel route when generating the traveling record information. The target area is further linked to the travel route, and the pipeline traveling evaluation unit calculates the traveling travel evaluation. Which considering the cyclic degree for the security target area is proposed in. According to this configuration, the security target area data related to the security target area (for example, the area where the water pipe construction affects other underground buried objects such as the gas pipe) that is the scope of influence of other companies' construction (for example, water pipe construction), Since data related to a security target conduit (for example, a gas pipe) belonging to the security target area is stored in the memory device, it is possible to determine whether the traveling vehicle is monitoring the safety target conduit. Accordingly, it is possible to generate traveling record information in which a safety target conduit, which is a special conduit, is distinguished from other conduits in the travel route. As a result, it is possible to realize a patrol monitoring evaluation that distinguishes between a pipeline (for example, a gas pipe) that is highly important for patrol monitoring and a general pipe that may be affected by the construction of other companies (for example, water pipe construction).

It is a functional block diagram which shows an example of the fundamental structure of the conduit patrol evaluation system by this invention. It is a schematic diagram which shows the information content stored in the information storage part constructed | assembled in a memory card. It is a schematic diagram which shows the structure of the flow of data and the display image displayed on a monitor in one Embodiment by this invention. It is a typical monitor screen figure which shows the large scale image and enlarged image in the monitor image which the safety | security object area image, the conduit | pipe arrangement | positioning image, and the navigation map image were synthesize | combined. It is a schematic diagram explaining the relationship between a driving | running route | root, a conduit | pipe route | root, and a conduit | pipe route | route in a safety target area. It is a schematic diagram for demonstrating typically the method of a link with a driving | running route, a conduit | pipe route, and the conduit | pipe route | path in a safe area. It is the monitor screen figure which shows the frequency of the patrol monitoring driving | running | working with respect to a conduit | pipe path | route graphically.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram showing an example of a basic configuration of a conduit patrol evaluation system according to the present invention. In this embodiment, the gas circulation evaluation system is operated by the gas company. The construction of other companies means construction for underground objects other than gas pipes. As can be understood from FIG. 1, this conduit patrol evaluation system includes a car navigation device mounted on a gas company's patrol vehicle, and a memory card such as an SD card as a removable memory device that can be attached to and detached from the car navigation device. 3 is provided.

  As is well known, the car navigation device includes a sensor module 11, a car navigation module 12, a notification module 13, and the like. The sensor module 11 includes a GPS (Global Positioning System) device that acquires position information representing the position of the host vehicle by GPS positioning, an orientation sensor, a distance sensor, and the like, and transfers the detection signal to the car navigation module 12. The car navigation module 12 performs navigation processing such as route search processing on the road map and map matching processing for determining the position of the vehicle on the road map. In particular, in the map matching process, map information around the vehicle position is obtained from the map database, and a known map matching algorithm is performed based on the map information, and the position on the road indicated by the map information is finally determined from the current position of the vehicle. The vehicle position is determined. Various navigation information generated by the car navigation module 12 is notified to the occupant in the form of image information or audio information. In order to notify the information by the image, the monitor 90 prepares 91 for notifying the information by voice. Various operation input signals are given to the car navigation module 12 through a touch panel attached to the monitor 90.

  The card driver 14 exchanges data between the inserted memory card 3 and the car navigation device. The memory card 3 functions as an information storage unit in the conduit circulation evaluation system of the present invention, and can store conduit information as gas pipe information, construction management information of other companies, and tour record information. The gas pipe information includes gas pipe arrangement data that can be collated with road map data, the gas pipe size and other attribute data, etc., so that the gas pipe is overlaid on the road map. They can be displayed together. Such gas pipe information is well known and will not be described in detail. The other company's construction management information includes the other company's construction basic data including the construction type and / or importance of each other company's construction, the security target area data related to the security target area that is affected by each company's construction, and the effects of each other company's construction. Data on the gas pipes to be secured regarding the gas pipes to be received are included. The gas pipe information and the construction management information of other companies are downloaded from the center PC as a server computer installed in the gas pipe drawing management center and stored in the memory card 3. The other company's construction management information is input based on an underground buried management database that manages construction acceptance information for underground buried objects such as water pipes, sewage pipes, and electric / communication conduits. The gas pipe information is downloaded from a gas pipe database installed in a gas management center not shown here. The traveling record information is data in which a travel route and a conduit route matched with the travel route are linked, and will be described in detail later.

Various programs are recorded in a program memory (not shown) constituted by a non-volatile memory, a hard disk, and the like, and these program modules are expanded into a working memory and configured by various functions when activated. A function realization means is constructed. The function realizing means particularly related to the present invention are the other company construction management means 20, the conduit information processing means 30, the conduit tour information recording means 40, and the security management means 50.
The other company construction management means 20 includes a third party construction management information processing unit 21, a security target area determination unit 22, and a security target area image generation unit 23. The third-party construction management information processing unit 21 accesses the memory card 3 to read desired third-party construction management information and converts it into a format that can be appropriately processed internally. The security target area determination unit 22 determines a third-party construction area located around the vehicle position sent from the car navigation module 12 as a security target area from the third-party construction management information. The security target area image generation unit 23 uses the security target area data included in the other company's construction management information read through the other company's construction management information processing unit 21, and uses the security target area image indicating the security target area adjacent to the vehicle position. Is generated.
The conduit information processing means 30 generates a conduit path defined by a map position based on the conduit information read from the memory device. For this purpose, the conduit information processing means 30 includes a conduit image generation unit 31 and a conduit attribute data processing unit 32. The conduit image generation unit 31 is based on the gas pipe data included in the read conduit information, and the gas pipe embedded image in the area around the vehicle position and the gas pipe embedded image in the area around the individually specified map point. Is generated. The conduit attribute data processing unit 32 processes the attribute data for specifying the gas pipe type such as the gas pipe size included in the read conduit information, and can display it together with the gas pipe embedded image or as necessary. Convert to format. Since these gas pipe embedded image processing situations are well known, further explanation is omitted.

The conduit tour information recording means 40 includes a tour traveling route setting unit 41, a route matching unit 42, a tour record information generating unit 43, and a conduit tour evaluation unit 44. The traveling route setting unit 41 is not always used. However, when a decrease in the degree of circulation is recognized due to an increase in the number of conduit routes in which traveling is short, the traveling route setting unit 41 cooperates with the car navigation module 12 to travel. It has a function of setting a travel route that increases the degree. Specifically, route search request data having a passage point as a point that defines a conduit route in which traveling is short is generated and transferred to the car navigation module 12. The route matching unit 42 performs a matching process between the traveling route of the traveling vehicle defined based on the vehicle position obtained from the car navigation device and the conduit route included in the conduit information. In the matching processing in this embodiment, as will be described in detail later, matching between the travel route portion finely divided by the node and the conduit route portion classified into the corresponding travel route portion is accompanied by vehicle travel. Will be done sequentially. The cyclic record information generating unit 43 generates the matching result performed by the route matching unit 42 in a format that can be processed as cyclic record information. The traveling record information has a data structure in which a travel route and a conduit route that matches the travel route are linked. The conduit patrol evaluation unit 44 calculates the degree of patrol for the conduit route based on the tour record information and evaluates the traveling of the patrol vehicle. The conduit patrol evaluation unit 44 calculates the patrol traveling evaluation based on the patrol record information of a single patrol vehicle, and is constructed in each patrol vehicle. On the other hand, a traveling record processing unit 51 and a center side conduit traveling evaluation unit 52 are also constructed in the center PC in order to perform traveling traveling evaluation based on traveling record information of a plurality of traveling vehicles belonging to the center. . The traveling record processing unit 51 collects traveling record information of each traveling vehicle and integrates the individual traveling record information. The center-side conduit patrol evaluation unit 52 calculates the degree of patrol based on the integrated patrol record information and evaluates the patrol traveling by all the patrol vehicles.
The preferred degree of patrol adopted here is a statistical value, which is the ratio of the travel route linked to the conduit route and the frequency of the travel route linked to the partial conduit route. Either one degree of circulation may be employed, or both may be employed selectively.
The security management means 50 uses a key system and / or a password system to prohibit unauthorized use of the memory card 3 and to allow the memory card 3 to be used only in the conduit circulation evaluation system. I do.

Next, the contents of conduit information, other company construction management information, and traveling record information included in the memory card 3 functioning as an information storage unit will be described using the data structure schematically shown in FIG.
The conduit information is obtained by extracting the gas pipe information of the area where the patrol vehicle goes around from the gas pipe database. The gas pipe information includes data necessary for generating a gas pipe image indicating a gas pipe path to be superimposed on the map image. Here, the gas pipe ID, which is one of the gas pipe attribute values, including the gas pipe ID, the node ID, the node coordinates, the length between nodes, and the like is included.
The traveling record information has a data structure in which the date and time, the travel route, the conduit route, and the construction area of other companies are linked to each other. The recording procedure will be described later in detail.

Next, the contents of the other company construction basic data, security target area data, and safety target gas pipe data included in the other company construction management information included in the memory card 3 functioning as the other company construction management information storage unit are shown in FIG. Description will be made using a data structure schematically shown. Other company construction basic data includes other company construction ID, construction type, importance, etc. as record items. Therefore, by notifying the basic data, it is possible for the occupant to grasp information about what kind of underground buried work is being done by what business entity. The importance here indicates the magnitude of the risk of damage to the gas pipe caused by the construction. For example, the importance becomes high when the excavation scale in the construction is large. The security area data shows the areas of other companies 'construction that may have some influence on the gas pipes.In other words, the area where there are gas pipes that are subject to security for other companies' construction (security area) ) Is data for displaying on a monitor. In this embodiment, in addition to the security target area coordinates linked to the security target area ID assigned to identify the security target area, data indicating the position of the center of gravity of the security target area is also linked. The security target area coordinates are a set of corner coordinates of the polygon for defining the security target area by a predetermined polygon, and when using a plurality of types of polygons, a code indicating the type of the polygon is also linked. Is done. The corner coordinates are coordinate values on the map or values that can be easily converted thereto, and an image showing the security target area can be superimposed on the map image using the corner coordinate set. The area center of gravity is used as a representative position of the security target area, for example, when the security target area is represented by a symbol symbol. The other company construction basic data and the security target area data are input to the center PC using a predetermined input device, and downloaded to the memory card 3 from the center PC.
The gas pipe data for safety belongs to the vicinity of the security target area including the security target area among the gas pipe data of the conduit information described above, and the actual data content uses the information of the pipe information. Here, only link data is included. However, the security target gas pipe ID given to facilitate the link with the security target area, and the security target gas pipe in the security target area specified by the security target gas pipe ID are represented on the map image. The gas pipe coordinates to be secured, which is a coordinate set that can be linked to the gas pipe data.

Here, patrol monitoring of the security target area based on the construction management information of other companies will be described.
First, a procedure for generating a travel route image by a navigation device and a procedure for generating a display image of a security target area used for data included in other company construction management information will be described with reference to FIG. When the traveling vehicle starts traveling and the car navigation module 12 starts operating, the vehicle position layer is generated from the vehicle position data. Further, corresponding road data and building data are extracted from the map coordinates based on the vehicle position data, and a road layer and a building layer are generated, respectively. By superimposing the vehicle position layer, the road layer, and the building layer, a map image indicating a basic traveling position in general car navigation is created. Although such a map image can be created by various methods, it is well known, and the description thereof is omitted here.

  In the other company construction management means 20, when the own vehicle position data representing the own vehicle position is given to the security target area determination unit 22, for example, the security around the host vehicle position is determined from index data created based on the security target area data in advance. Determine the target area. The security target area data corresponding to the determined security target area, the other company construction basic data and the safety target gas pipe data linked to the security target area data are read from the memory card 3, and the other company construction management information processing unit 21 Preprocessed. The security target area data is imaged as a security target area image used as a construction layer of another company by the security target area image generation unit 23. At that time, an anchor for calling the other company construction basic data is given to an arbitrary point in the security target area in the other company construction layer. As a result, it is possible to call and display the information of the other company construction basic data from the security target area displayed on the monitor 90. The safety target gas pipe data is imaged as a safety target gas pipe image used as a gas pipe layer in the conduit image generation unit 32. Again, when the gas pipe attribute data is included in the security target gas pipe data, an anchor for calling the gas pipe attribute data is given to an arbitrary point of the gas pipe path in the gas pipe layer. Thereby, the information of the gas pipe attribute data can be called up and displayed from the security target gas pipe path displayed on the monitor 90.

  Note that the flow of various data and the configuration of the navigation image which is the monitor display image using FIG. 3 are for the purpose of explanation, and the present invention is not limited to this form. For example, the extraction timing of the security target area data and the security target gas pipe data, and the timing of image generation based on the data can be freely performed. In addition, the usage method of the layer and the display method of the other company's construction basic data and gas pipe attribute data can be freely selected according to the specifications.

  The generated vehicle position layer, road layer, building layer, other company construction layer, and gas pipe layer are superimposed and synthesized, and transferred to the notification module 13, so that a navigation image as illustrated in FIG. Is displayed. FIG. 4 shows a wide navigation image at a large scale and an enlarged navigation image obtained by enlarging a security target area, which is a partial area of the wide navigation image, to fill the screen. In a wide-area navigation image, a triangular symbol indicating the position of the vehicle and a symbol “x” (labeled with a drawing number G) indicating the center of gravity of the security target area are displayed. Furthermore, the gas pipe path is indicated by a thick dotted line, and the conduit (water pipe) that is the target of construction work by another company in the security target area is indicated by a two-dot chain line. In this embodiment, the gas pipe route is also displayed outside the security target area. In this embodiment, the gas pipe information of the entire circulation area is stored in the information storage unit, and the gas pipe route image is generated by the gas pipe image generation unit 24. It is because it has become.

  The data structure of the security target area will be specifically described using the enlarged navigation image of FIG. Here, for the purpose of explanation, all the configurations are simplified, so that they are different from the actual forms. First, the security target area is indicated by a rectangle. Here, two security target areas are specified by the IDs indicated by SID (n) and SID (n + 1). Further, the gas pipe paths arranged in each security target area are respectively defined by the start end coordinate: Ps (x, y) and the end end coordinate: Pe (x, y). The start end coordinates and end end coordinates are stored as safety target gas coordinates of the safety target gas pipe data.

  In the enlarged navigation image of FIG. 4, two security target areas are displayed. When a traveling vehicle approaches these security target areas, for example, when the security target area approaches within 100 m, a speaker (buzzer) is displayed. ) A warning sound is emitted from 91. Alternatively, the center of gravity G may be blinked. The construction of other companies that creates the security target area includes not only water pipes, but also various types of sewer pipes, electrical / communication pipes, etc. It is also preferable to change the display color of the target area. By displaying such navigation images on the monitor, passengers of patrol vehicles can use other companies such as water pipe construction that may affect their gas pipes through the car navigation system installed in the patrol vehicle. Construction can be confirmed easily.

  Next, a schematic generation procedure of cyclic recording information by the cyclic recording information generation unit 43 will be described with reference to FIGS. In the upper area of FIG. 5, the trajectory of the traveling vehicle that has traveled on the grid-like road defined by the row number and the column number is indicated by a thick line. In this embodiment, the conduit is embedded in the gas pipe. The conduit path showing is indicated by a dotted line. The security target areas based on the construction of other companies mentioned above are shown with diagonal lines. In the lower area of FIG. 5, a time stamp indicating the date and time, a travel route that is segmented in units of squares (defined by natural numbers m and n): Tmn-Tmn, also segmented in units of squares. The conduit route: Pmn-Pmn and the security target area: Wmn-Wmn are displayed in a list. The key in the list display is a travel route: Tmn-Tmn that is listed over time as the traveling vehicle travels, and each travel route: Tmn through matching processing by the route matching unit 42. The conduit route matched with -Tmn: Pmn-Pmn and the security target area: Wmn-Wmn are shown next to the matching travel route. The link state on the data structure of the travel route Tmn-Tmn, the conduit route: Pmn-Pmn, and the security target area: Wmn-Wmn is schematically shown in FIG. From FIG. 6, it can be understood that the traveling record information has a data structure in which the travel route: Tmn-Tmn, the conduit route: Pmn-Pmn, and the construction areas of other companies are linked to each other. The travel route: Tmn-Tmn is generated while corresponding to the minute road portion defined by the start point node and the end point node which are road data. Each traveling route (traveling route portion) as a traveling locus of the traveling vehicle generated in this way: Tmn-Tmn If the conduit route: Pmn-Pmn is matched, data indicating the conduit route: Pmn-Pmn Links. Of the conduit route: Pmn-Pmn, the conduit route: Pmn-Pmn belonging to the security target area: Wmn-Wmn is linked to the data indicating the security target area: Wmn-Wmn. If the traveling record information having the data structure shown in FIG. 6 is evaluated based on the traveling route: Tmn-Tmn, the ratio of traveling along the conduit route: Pmn-Pmn out of all traveling routes of the traveling vehicle, and Security target area: A ratio of traveling along Wmn-Wmn is calculated. Further, if evaluated with reference to the conduit route: Pmn-Pmn, the ratio of the travel route: Tmn-Tmn to all the conduit routes in the specific area, that is, the ratio of the traveling vehicle traveling in the entire conduit route. Is calculated. Further, by counting the number of links of a plurality of travel routes: Tmn-Tmn to the same conduit route: Pmn-Pmn, the traveling frequency of the traveling vehicle for the specific conduit route: Pmn-Pmn is calculated.

  FIG. 7 shows the results of the pipeline tour evaluation for a predetermined period in a predetermined area, which is obtained by counting the tour record information as described above. FIG. 7 is an image that graphically represents the frequency of the patrol monitoring travel for the conduit route. By displaying the image on the monitor screen, it is possible to visually grasp the conduit tour evaluation. In this example, the frequencies are distinguished by different line patterns, but may be distinguished by line color, line thickness, or the like. Further, by displaying such an evaluation image on the monitor 90, a passenger of the traveling vehicle can easily determine an effective traveling route.

Note that the pipes that are subject to the pipeline inspection are, for example, in the case of gas pipes, which are mainly medium-diameter pipes that are relatively large in diameter and are buried along roads with heavy vehicle traffic. It is suitable for use in a system that cooperates with a car navigation apparatus as in the invention.
In the above-described embodiment, this pipeline patrol evaluation system is operated by a gas company, and the construction of other companies is construction for underground buried objects other than gas pipes. However, this is not limited by the present invention. Any combination applicable to the present invention is the subject of the present invention.

3: Memory card (memory device)
12: Car navigation module (car navigation system)
13: Notification module 90: Monitor 20: Other company construction management means 21: Other company construction management information processing unit 22: Security target area determination unit 23: Security target area image generation unit 30: Conduit information processing unit 31: Gas pipe image generation unit 40 : Conduit tour information recording means 41: tour traveling route setting unit 42: route matching unit 43: tour record information generating unit 44: conduit tour evaluation unit 51: tour record information processing unit 52: center side conduit tour evaluation unit

Claims (5)

In a pipeline patrol evaluation system that cooperates with a car navigation device mounted on a patrol vehicle that monitors the surrounding conditions of a conduit buried underground,
A memory device storing conduit information including a map location of the conduit;
Conduit information processing means for generating a conduit path defined by a map position based on the conduit information read from the memory device;
A route matching unit that performs matching between the traveling route of the traveling vehicle defined based on the own vehicle position obtained from the car navigation device and the conduit route included in the conduit information;
A traveling record information generating unit that generates traveling record information that links the traveling route and a conduit route that matches the traveling route;
A conduit patrol evaluation unit that calculates the degree of patrol for the conduit route based on the tour record information and performs patrol traveling evaluation of the patrol vehicle,
Conduit patrol evaluation system with   The conduit circuit evaluation system according to claim 1, wherein the degree of circulation is a ratio of a travel route linked to a conduit route and / or a frequency of a travel route linked to a partial conduit route.   The conduit tour evaluation system according to claim 1 or 2, wherein the conduit tour evaluation unit includes an individual conduit tour evaluation unit that calculates the tour travel evaluation based on tour record information of a single traveling vehicle. .   The conduit side tour evaluation unit includes a center side conduit tour evaluation unit that calculates the travel travel evaluation based on travel record information of a plurality of the traveling vehicles belonging to the center and performs overall travel evaluation. The conduit circuit evaluation system according to any one of claims 1 to 3. The memory device includes a third party construction including a safety target area data related to a security target area that is an affected area of a third party construction performed around the conduit and a safety target pipe data related to a conduit that may be affected by the third party construction. A third-party construction management information processing unit that stores management information and reads the third-party construction management information by accessing the memory device, and a third-party construction area located around the vehicle position obtained from the car navigation device The traveling record information generating unit further links the security target area matched with the travel route when generating the travel record information to the travel route, and The conduit patrol evaluation unit determines the patrol for the security target area when calculating the patrol traveling evaluation. The conduit circuit evaluation system according to any one of claims 1 to 4, wherein a degree is taken into consideration.

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