JP2014203123A - Infrastructure control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a more reliable road control device.SOLUTION: The road control device according to one embodiment comprises: a traffic data acquisition section for acquiring traffic data; a posted information acquisition section for acquiring posted information including information on an event occurred on a road via a network; a determination section for determining whether the posted information can be used or not on the basis of the traffic data; and a report section for reporting the posted information when it is determined that the posted information can be used.

Description

  Embodiments described herein relate generally to a facility control apparatus.

  Road control devices that monitor road conditions are generally put into practical use. The road control device can detect an event such as an accident, a broken car, a fallen object, and a traffic jam that has occurred on the road, based on an image captured by a camera installed on the road.

JP 2004-287500 A

  When the place where the event has occurred is a blind spot of the camera, there is a problem that the road control device cannot detect the event from the image.

  An object of the present invention is to provide a road control device with higher reliability.

  A road control device according to an embodiment is based on a traffic data acquisition unit that acquires traffic data, a post information acquisition unit that acquires post information having information related to an event that has occurred on a road, and the traffic data. A determination unit that determines whether or not the posted information is usable, and a notification unit that notifies the posted information when it is determined that the posted information is available.

FIG. 1 is a diagram for explaining a road control device according to an embodiment. FIG. 2 is a diagram for explaining a road control device according to an embodiment. FIG. 3 is a diagram for explaining a road control device according to an embodiment. FIG. 4 is a diagram for explaining a road control device according to an embodiment.

Hereinafter, a road control device according to an embodiment will be described in detail with reference to the drawings.
FIG. 1 shows an example of a road control system 1 including a road control device.
The road control system 1 includes a road control device 10 and a user interface 20. On the road, the road control system 1 is based on information (post information) supplied from the mobile terminal 30 owned by the user using the road via the network, traffic data supplied from the traffic control system 40, and the like. Detect the event that occurred.

  The road control device 10 includes a CPU 11, a ROM 12, a RAM 13, a nonvolatile memory 14, and a communication unit 15.

  The CPU 11 includes arithmetic elements that execute various arithmetic processes. The ROM 12 stores a program for controlling the road control device 10 and a program for realizing various functions. The CPU 11 controls the operation of each module by starting a program stored in the ROM 12. The RAM 13 functions as a work memory for the CPU 11. That is, the RAM 13 stores the calculation result of the CPU 11, data read by the CPU 11, and the like. The nonvolatile memory 14 is a nonvolatile memory that stores various setting information, programs, and the like.

  The CPU 11 of the road control device 10 can implement a module for executing various processes by executing a program stored in the ROM 12, the nonvolatile memory 14, or the like.

  The communication unit 15 is a module for communicating with other devices via a network. The road control device 10 can receive post information supplied from the portable terminal 30 via the network by the communication unit 15. Further, the road control device 10 can supply information to be displayed on the display of the mobile terminal 30 by the communication unit 15 via the network. For example, the road control device 10 can supply a file for displaying a Web page to the mobile terminal 30 in response to a request from the mobile terminal 30.

  The road control device 10 can supply information to be displayed on the information board 50 or the like installed on the road by the communication unit 15 via the network. Still further, the road control device 10 can supply information to be displayed on the in-vehicle monitor 60 mounted on the user's vehicle by the communication unit 15 via the network.

  Further, the road control device 10 can transmit and receive information to and from one or a plurality of user interfaces 20 through the communication unit 15. The user interface 20 includes, for example, a display device 21 and an input device 22.

  The display device 21 is, for example, a liquid crystal display device including a liquid crystal display panel including a plurality of pixels arranged in a matrix and a backlight that illuminates the liquid crystal panel. The display device 21 can display a screen generated by the road control device 10.

  The input device 22 is an input device that generates an operation signal in response to an operation input by a staff member. The input device 22 includes, for example, operation keys or a touch pad. The input device 22 may be configured to receive an operation signal from a keyboard, a mouse, or another input device that can generate an operation signal. The input device 22 supplies an operation signal to the road control device 10.

  The portable terminal 30 generates post information such as situation explanation, route name, location (location where the event occurred), data indicating the time (time when the event occurred), and image (image where the event is captured). To do. For example, the portable terminal 30 generates text data indicating a situation description and a route name in accordance with an operation input. In addition, the mobile terminal 30 generates data indicating time according to the time indicated by a built-in clock or the like. Further, the mobile terminal 30 generates position information indicating a location (coordinates) using a built-in function such as GPS. Moreover, the structure which produces | generates position information based on the route name and kilopost information which were input by operation may be sufficient as the portable terminal 30. Furthermore, the portable terminal 30 generates image data using a function of a built-in camera or the like.

  For example, the road control device 10 stores a file (for example, an HTML file) for displaying a Web page for posting posted information on the portable terminal 30 in the nonvolatile memory 14. The portable terminal 30 generates the posting information as described above according to the operation input on the Web page, and supplies it to the road control device 10. The mobile terminal 30 may be configured to supply posted information to the road control device 10 using a function for uploading mail or other data. Also, the posting information is not limited to the above, and the number of items may be increased or decreased.

  The traffic control system 40 estimates the speed of the vehicle traveling on the road for each section. For example, the traffic control system 40 includes a plurality of cameras installed on a road. The traffic control system 40 calculates the speed of each vehicle traveling within the angle of view according to the image of the camera installed on the road. The traffic control system 40 can calculate a speed for each calculated vehicle, and can calculate an average speed of a vehicle traveling in a certain section. For example, the traffic control system 40 calculates the average value of the speeds of the vehicles that have traveled within the angle of view within a certain time as the average speed of the vehicles in a certain section.

  For example, the traffic control system 40 identifies a vehicle using images captured by a plurality of cameras. The traffic control system 40 calculates the speed of one vehicle based on the location where the camera that captured the image used for identification is installed and the time when each image was captured. Furthermore, the traffic control system 40 may be configured to calculate the average value of the speeds of a plurality of vehicles as the average speed of the vehicles in the section between the plurality of cameras.

  The traffic control system 40 calculates the average speed of the vehicle for each of a plurality of sections on the road by the above method. In addition, the traffic control system 40 can acquire an image (road image) obtained by imaging the road with a camera. The traffic control system 40 supplies the calculated average vehicle speed for each section and the road image to the road control device 10 as traffic data. The traffic control system 40 may be configured to calculate an intermediate value or a median value instead of calculating an average value of the speeds of a plurality of vehicles.

  The road control device 10 filters the posted information supplied from the mobile terminal 30 and extracts highly reliable posted information.

FIG. 2 shows an example of processing of the road control device 10.
The road control device 10 receives the posted information (step S11). That is, the road control device 10 receives post information supplied from the mobile terminal 30 via the network. The road control device 10 analyzes the received post information. Thereby, the road control device 10 acquires various information indicated by the posted information.

  In addition, the road control device 10 acquires traffic data from the traffic control system 40. The road control device 10 filters the posted information based on the acquired posted information and traffic data (step S12). As a result, the road control device 10 adds a flag (usable flag) indicating that the information can be used to highly reliable posted information. In addition, the road control device 10 adds a flag (unusable flag) indicating that the post information with low reliability cannot be used.

  The road control device 10 determines whether each piece of posted information is available (step S13). That is, the road control device 10 determines whether an available flag or an unavailable flag is added to the posted information.

  The road control device 10 causes the operator of the user interface 20 to check the posted information determined to be usable. For this reason, the road control device 10 displays the posted information determined to be usable on the display device 21 of the user interface 20 (step S14). Thereby, the road control device 10 causes the operator to input the certainty of the event occurrence. Furthermore, the user interface 20 may be configured to generate information for correcting the posted information based on the information input by the input device 22 and supply the information to the road control device 10.

  The road control device 10 determines whether post information is available based on the information input by the input device 22 of the user interface 20 (step S15). That is, the road control device 10 determines whether the posted information is determined to be highly reliable by the operator of the user interface 20. Furthermore, the road control device 10 may be configured to correct the posting information when information for correcting the posting information is supplied from the user interface 20.

  Note that the road control device 10 deletes the posted information determined to be unusable in step S13 or step S15 (step S16).

  Furthermore, the road control device 10 transmits the posting information determined to be available in step S15 to a preset device on the network (step S17). Thereby, the road control apparatus 10 can supply post information quickly. For example, the road control device 10 supplies posted information to the information board 50 installed on the road. The information board 50 displays the supplied information. Thereby, the road control device 10 can notify the user of the road by the information board 50 of the posted information whose reliability has been confirmed. The road control device 10 can also supply post information whose reliability has been confirmed to related organizations such as the police, rescue, ambulance, and patrol car.

  Further, the road control device 10 determines whether or not to post the posting information determined to be available in step S15 on the Web (step S18). The road control device 10 holds a setting file for designating whether or not to disclose on the Web in the nonvolatile memory 14. The road control device 10 determines whether to post the posted information on the Web according to the setting file.

  When posting posted information on the Web, the road control device 10 determines whether or not privacy information is included in the posted information (step S19). For example, the road control device 10 performs pattern matching on the image in the posted information, and determines whether the image includes a face image or a vehicle number. The road control device 10 determines that privacy information is included when the image in the posted information includes a face image or a vehicle number.

  If the road control device 10 determines in step S19 that the posted information does not include privacy information, the road control device 10 publishes the posted information on the Web (step S20). That is, the road control device 10 generates a file for displaying a page including posted information on a device such as the mobile terminal 30, the in-vehicle monitor 60, or another PC, and is nonvolatile in a state where it can be accessed via the network. Save in the memory 14. Thereby, the user can browse post information posted by other users.

  Further, when the road control device 10 determines in step S19 that the post information includes privacy information, the road control device 10 deletes the image in the post information (step S21) and publishes the post information. Thereby, the road control device 10 can prevent the disclosure of privacy information.

  Further, the road control device 10 may be configured to determine whether or not private information is included in the text data in the posted information. For example, the road control device 10 detects private information such as a person's name and a vehicle number from text data in the posted information. The road control device 10 may be configured to replace the private information on the text data with another character string and release it when private information is detected from the posted information.

  FIG. 3 shows an example of the filtering process of the road control device 10, that is, the process of step S12 of FIG. The road control device 10 filters the posted information by using information held by the road operator, know-how, and the like.

  As described above, the road control device 10 analyzes the posted information and acquires various information indicated by the posted information. First, the road control device 10 determines whether or not an image is included in the posted information (step S31).

  Further, the road control device 10 estimates the place (event occurrence point) where the event indicated by the posted information has occurred by analyzing the posted information. For example, the road control device 10 estimates an event occurrence point based on information such as “situation explanation”, “route name”, or “location where the event has occurred” in the posted information. Furthermore, the road control device 10 recognizes position information indicated by the posted information. That is, the road control device 10 recognizes the position information (posting point) generated by the mobile terminal 30 based on a function such as GPS when posting post information.

  The road control device 10 determines the reliability of the posted information based on the estimated event occurrence point and the posting point (step S32). For example, the road control device 10 determines whether the distance between the event occurrence point and the posting point is less than a preset distance, and determines that the reliability of the posted information is high when the distance is less than the preset distance. To do.

  Furthermore, the road control device 10 determines the reliability of the posted information based on the traffic data acquired from the traffic control system 40 and the event occurrence point recognized from the posted information (step S33).

  For example, the road control device 10 can recognize the average speed of the vehicle for each section on the road based on the traffic data. The road control device 10 determines whether or not there is a section where the average speed of the vehicle is less than a preset speed within a predetermined range from the event occurrence point. When it is determined that there is a section in which the average speed is less than a preset speed within a predetermined range from the event occurrence point, the road control device 10 determines that the reliability of the posted information is high.

  Furthermore, the road control device 10 acquires an image (road image) captured by a camera installed on the road from the traffic data. The road control device 10 determines the reliability of the posted information based on the road image and the event occurrence point recognized from the posted information (step S34). The road control device 10 can detect an abnormal event such as a low-speed driving or a stop of the vehicle from the road image. The road control device 10 determines whether or not these abnormal events are detected based on the road image captured within a predetermined range from the event occurrence point. When it is determined that an abnormal event is detected within a predetermined range from the event occurrence point, the road control device 10 determines that the reliability of the posted information is high.

  The road control device 10 adds an available flag to the posted information determined to be highly reliable in steps S31 to S34 (step S35). Further, the road control device 10 adds an unusable flag to the posted information determined to be low in the above steps S31 to S34 (step S36).

  As described above, the road control device 10 can collect post information from the portable terminal 30 possessed by an unspecified number of road users facing an abnormal event. Thereby, the road control device 10 can detect an abnormal event based on the posted information even when there is a blind spot in the road image.

  Further, the road control device 10 determines the reliability of the posted information based on the presence / absence of an image, the distance between the event occurrence point indicated by the posted information and the posted point indicated by the position information, the detection result of the abnormality based on the traffic data, and the like. Judge whether it is high. The road control device 10 causes the operator who operates the user interface 20 to check the posted information determined to be highly reliable. Thereby, the road control apparatus 10 can narrow down the posting information which an operator confirms. As a result, the road control device 10 can provide a more reliable road control device.

  Further, the road control device 10 can publish posted information that is determined to be highly reliable on the Web, the information board 50, the on-vehicle monitor 60, or the like. Thereby, the road control device 10 can supply post information with high reliability to the user.

  Further, the road control device 10 detects privacy information from the posted information, and deletes or replaces the detected privacy information with other information. Thereby, the road control device 10 can prevent the posting information including the privacy information from being disclosed.

  Further, the filtering process is not limited to the above embodiment. The road control device 10 may be configured to filter post information using still other items. Furthermore, the road control device 10 may be configured to calculate a score for each determination item and determine whether the reliability of the posted information is high based on the calculated score and a threshold value.

  FIG. 4 shows another example of the filtering process of the road control device 10. Note that step S41 is the same determination as step S31 of FIG. Further, step S43 is the same determination as step S32 in FIG. Step S45 is the same determination as step S33 of FIG. Step S47 is the same determination as step S34 in FIG. The road control device 10 calculates (adds) the reliability based on each determination result. The road control device 10 determines whether the reliability of the posted information is high based on the total reliability.

  The road control device 10 determines whether or not an image is included in the posted information (step S41). When the posted information includes an image, the road control device 10 sets the reliability to “+1”, for example (step S42).

  Moreover, the road control device 10 determines the reliability of the posted information based on the event occurrence point and the posting point (step S43). For example, the road control device 10 determines that the reliability of the posted information is high when the distance between the event occurrence point and the posting point is less than a preset distance. When the road control device 10 determines in step S43 that the reliability of the posted information is high, the road control device 10 increments the reliability by “+1” (step S44).

  Further, the road control device 10 determines the reliability of the posted information based on the average vehicle speed for each section on the road and the event occurrence point recognized from the posted information (step S45). For example, the road control device 10 determines that the reliability of the posted information is high when there is a section where the average speed of the vehicle is less than a preset speed within a predetermined range from the event occurrence point. When the road control device 10 determines that the reliability of the posted information is high in step S45, the road control device 10 increments the reliability by “+1” (step S46).

  Further, the road control device 10 determines the reliability of the posted information based on the road image and the event occurrence point recognized from the posted information (step S47). For example, when the road control device 10 determines that an abnormal event is detected within a predetermined range from the event occurrence point, the road control device 10 determines that the reliability of the posted information is high. When the road control device 10 determines in step S47 that the reliability of the posted information is high, the road control device 10 increments the reliability by “+1” (step S48).

  The road control device 10 determines whether the reliability of the posted information is high based on the total value of reliability and a preset threshold value (step S49). The road control device 10 determines that the reliability of the posted information is high when the total reliability value is equal to or greater than a preset threshold value.

  The road control device 10 adds an available flag to the posted information determined to be highly reliable in step S49 (step S50). Further, the road control device 10 adds an unusable flag to the posted information that is determined to have low reliability in step S49 (step S51).

  As described above, the road control device 10 determines the posting information based on the presence / absence of an image, the distance between the event occurrence point indicated by the posting information and the posting point indicated by the position information, the detection result of the abnormality based on the traffic data, and the like. The reliability for reliability is calculated. The road control device 10 causes an operator who operates the user interface 20 to confirm posting information whose reliability is equal to or higher than a threshold value. According to this method, the road control device 10 can handle post information with a shortage such as omission as post information candidates to be confirmed by the operator. Thereby, the road control device 10 can use the posted information more usefully.

  Although the road control device 10 has been described as having a reliability of “+1” in step S42, step S44, step S46, and step S48, the present invention is not limited to this configuration. The road control device 10 may be configured to add a different value as the reliability for each determination. Thereby, the road control apparatus 10 can set the importance (weight) of each determination.

  In the above embodiment, the road control device 10 and the traffic control system 40 have been described as different configurations, but the present invention is not limited to this configuration. The road control device 10 and the traffic control system 40 may be configured to be integrated or share some modules.

  For example, the traffic control system 40 includes an arithmetic device including a CPU, a ROM, a RAM, and a nonvolatile memory. The traffic control system 40 can execute various calculations by causing the CPU to execute a program stored in the ROM or the nonvolatile memory. Thereby, the traffic control system 40 can generate traffic data.

  Further, the CPU, ROM, RAM, and nonvolatile memory of the traffic control system 40 may have the same configuration as the CPU 11, ROM 12, RAM 13, and nonvolatile memory 14 of the road control device 10, respectively. In such a case, the CPU, ROM, RAM, and nonvolatile memory of the traffic control system 40 can realize various functions of the road control device 10. Thereby, the traffic control system 40 can incorporate the road control device 10.

  It should be noted that the functions described in the above embodiments are not limited to being configured using hardware, but can be realized by causing a computer to read a program describing each function using software. Each function may be configured by appropriately selecting either software or hardware.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Road control system, 10 ... Road control apparatus, 11 ... CPU, 12 ... ROM, 13 ... RAM, 14 ... Non-volatile memory, 15 ... Communication part, 20 ... User interface, 21 ... Display apparatus, 22 ... Input device, 30 ... mobile terminal, 40 ... traffic control system, 50 ... information board, 60 ... in-vehicle monitor.

Claims (6)

A traffic data acquisition unit for acquiring traffic data;
A post information acquisition unit for acquiring post information having information on an event occurring on a road via a network;
A determination unit for determining whether or not the posting information is available based on the traffic data;
When it is determined that the posting information is available, a notification unit that notifies the posting information;
A road control device comprising: The traffic data has a vehicle speed for each divided section obtained by dividing the road into a plurality of sections,
The determination unit estimates an event occurrence point where the event has occurred based on the posting information, and the posting information can be used based on the event occurrence point and a vehicle speed for each of the divided sections. To determine whether or not
The road control device according to claim 1. The traffic data has a road image taken by a camera installed on the road,
The determination unit estimates an event occurrence point where the event has occurred based on the posting information, and whether the posting information is usable based on the event occurrence point and the road image. judge,
The road control device according to claim 1 or 2. The posting information has position information indicating a posting point where the posting information is posted;
The determination unit estimates an event occurrence point where the event has occurred based on the posting information, and whether the posting information is available based on the event occurrence point and the posting point judge,
The road control device according to any one of claims 1 to 3.   The road control device according to any one of claims 1 to 4, further comprising a public section that publishes the posted information on a network when it is determined that the posted information is usable.   The road control device according to claim 5, wherein the disclosure unit deletes information corresponding to a condition set in advance in the posted information and publishes the posted information on a network.

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