JP6577260B2 - Information processing apparatus and event detection method - Google Patents

Description

  Embodiments described herein relate generally to an information processing apparatus and an event detection method.

  Sound patterns such as collision sounds and sudden braking sounds that are likely to be generated due to various events such as accidents are stored in advance, and the sound collected by the microphone installed on the road and the pre-stored sound patterns There is a technique for detecting the occurrence of an accident and notifying the subsequent vehicle of the occurrence of the detected accident.

Japanese Patent Laid-Open No. 10-162277 JP 2003-329475 A JP-A-9-98412 JP 2000-353290 A

  However, in the above technique, the occurrence of an accident is detected when the sound collected by the microphone resembles a pre-stored sound pattern even if various events such as an accident do not occur on the road. The detection accuracy of various events such as accidents is low.

The information processing apparatus according to the embodiment includes a storage unit, a reception unit, a detection unit, a transmission unit, and an update unit. Storage unit, in association with events occurring roads, and sound pattern candidate, the. The receiving unit receives a sound pattern collected by the sound collecting unit from the sound collecting unit installed on the road, and captures the road with a monitoring camera arranged adjacent to the sound collecting unit. Receive video. Detection unit, among the stored tone pattern candidate storing unit, the received sound pattern an event stored in association with Ruoto pattern candidate matches is detected as a first event triggered by received sound pattern . A transmission part transmits the received monitoring camera image | video to the display apparatus provided in a traffic control room, when a 1st event is detected. Updating unit, if the display device, by road administrators, whether the determination result first event has occurred is entered, indicating that the determination result is determined to be the first event has not occurred, as the first event by the sound collection of the received sound pattern is not detected, updates Oite in the storage unit, a sound pattern candidates stored in association with the first event.

FIG. 1 is a schematic diagram of a traffic congestion monitoring system according to the first embodiment. FIG. 2 is a diagram illustrating an example of a configuration of the traffic jam monitoring system according to the first embodiment. FIG. 3 is a block diagram illustrating an example of a functional configuration of the central processing unit included in the congestion monitoring system according to the first embodiment. FIG. 4 is a flowchart illustrating an example of a flow of sound pattern candidate update processing by the central processing unit included in the traffic congestion monitoring system according to the first embodiment. FIG. 5 is a flowchart illustrating an example of a flow of sound pattern candidate update processing by the central processing unit of the traffic congestion monitoring system according to the second embodiment.

  Hereinafter, a traffic monitoring system to which an information processing apparatus and an event detection method according to the present embodiment are applied will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a schematic diagram of a traffic congestion monitoring system according to the first embodiment. FIG. 2 is a diagram illustrating an example of a configuration of the traffic jam monitoring system according to the first embodiment. As shown in FIG. 2, the traffic congestion monitoring system according to the present embodiment includes an information collection terminal A, an interpolation device B, a central processing device C, a display device D, and an information providing terminal E. . The information collection terminal A (an example of a sound collection unit) is configured by a microphone or the like, and is provided so as to collect sound generated by various events such as an accident that occurs on a monitored road. Then, the information collection terminal A transmits sound information indicating the sound pattern of the collected sound (hereinafter referred to as the first sound pattern) to the central processing unit C. In the present embodiment, as shown in FIG. 1, the information collection terminal A is provided for each section obtained by dividing the road to be monitored. Further, the information collecting terminal A is provided in a place such as a tunnel that does not collect sound generated by other events so as not to collect sound generated by events other than events that occur on the monitored road. It is preferable.

  The interpolating device B includes a vehicle detector, an emergency telephone, a monitoring camera, a smartphone, a mobile phone, and the like, and interpolating information other than sound generated by various events that occur on the monitored road (for example, by imaging various events) Transmitted image or the like) to the central processing unit C. Based on the first sound pattern indicated by the sound information received from the information collection terminal A, the central processing unit C (an example of the information processing device) detects an event that has occurred on the road to be monitored. Then, the central processing unit C transmits event information (an example of second information) relating to the detected event to the display device D to display the event information on the display device D, or to notify the occurrence of the detected event Information is distributed to the information providing terminal E (an example of a second external device).

  The display device D (an example of a first external device) is provided in a traffic control room that monitors a road, and displays event information notified from the central processing unit C. Moreover, the information provision terminal E is comprised with an information board, a highway radio, a smart phone, a mobile telephone, onboard equipment, etc., and displays the event information received from the central processing unit C.

  FIG. 3 is a block diagram illustrating an example of a functional configuration of the central processing unit included in the congestion monitoring system according to the first embodiment. As shown in FIG. 3, in the present embodiment, the central processing unit C includes a storage unit 301, a communication unit 302, a detection unit 303, and an update unit 304. The storage unit 301 stores events associated with roads such as accidents, natural flows, traffic jams, sudden brakes, runaways, fires, and the like, and sound patterns generated by the events (hereinafter referred to as sound pattern candidates) in association with each other. To do. Here, the sound pattern is a volume of a sound emitted by an event, a frequency of the sound, or the like.

  The communication unit 302 can communicate with the information collection terminal A, the interpolation device B, the display device D, and the information providing terminal E. In the present embodiment, the communication unit 302 receives sound information from the information collection terminal A. Further, the communication unit 302 receives interpolation information from the interpolation device B. Further, the communication unit 302 distributes event information related to an event that has occurred on the monitored road to the display device D and the information providing terminal E.

  The detection unit 303 stores a sound pattern candidate stored in the storage unit 301 in association with a second sound pattern that is a sound pattern candidate that matches the first sound pattern indicated by the sound information received from the information collection terminal A. The detected event is detected as an event event (an example of a first event) that is an event that has occurred on the road to be monitored. The update unit 304 receives a determination result (an example of first information) indicating whether or not an event event has occurred from an external device (an example of a first external device) such as the display device D, and the determination result is an event. When the event has not occurred, the event information is stored in the storage unit 301 so that the event event is not detected by collecting the first sound pattern indicated by the sound information received from the information collecting terminal A. Update the two-tone pattern.

  FIG. 4 is a flowchart illustrating an example of a flow of sound pattern candidate update processing by the central processing unit included in the traffic congestion monitoring system according to the first embodiment. In the present embodiment, the communication unit 301 periodically receives (collects) sound information from the information collection terminal A (step S401). When the sound information is received by the communication unit 302, the detection unit 303 compares the sound pattern candidates stored in the storage unit 301 with the first sound pattern indicated by the received sound information (step S402). And the detection part 303 is matched with the 2nd sound pattern which is a sound pattern candidate which corresponds to the 1st sound pattern which the received sound information shows among the sound pattern candidates memorize | stored in the memory | storage part 301, and was memorize | stored Are detected as event events occurring on the road (step S402).

  Here, the phrase “the first sound pattern matches the sound pattern candidate” includes the case where the first sound pattern completely matches the sound pattern candidate and the case where the first sound pattern is similar to the sound pattern candidate. For example, the detection unit 303 selects a sound pattern candidate having a volume matching the volume as the first sound pattern, or a sound pattern candidate within a predetermined volume based on the volume as the first sound pattern, from among the sound pattern candidates. An event that is specified as a two-sound pattern and stored in association with the specified second sound pattern is specified as an event event. The detection unit 303 also selects a sound pattern candidate having a frequency that matches the frequency as the first sound pattern, or a sound pattern candidate within a predetermined frequency range based on the frequency as the first sound pattern. Is identified as a second sound pattern, and an event stored in association with the identified second sound pattern is detected as an event event.

  The communication unit 302 determines whether or not an event event has been detected by the detection unit 303 (step S403). When the event event is not detected by the detection unit 303 (step S403: No), the process returns to step S401, and the communication unit 302 receives sound information from the information collection terminal A. On the other hand, when the event event is detected by the detection unit 303 (step S403: Yes), the communication unit 302 (an example of the transmission unit) is adjacent to the information collection terminal A that is the transmission source of the sound information indicating the first sound pattern. Interpolation information received from the interpolating device B arranged in this manner (for example, monitoring camera video that is an image obtained by imaging of the monitoring camera as the interpolating device B), character information indicating the detected event event, and the like are detected. Event information relating to the event is transmitted to the display device D, and the detected event is notified to the road administrator (step S404).

  Thereafter, the communication unit 302 receives a determination result indicating whether the detected event event has occurred from the display device D. Then, the updating unit 304 determines whether or not the received determination result indicates that the detected event event has occurred (step S405). When the determination result indicates that the detected event event has occurred (step S405: Yes), the update unit 304 determines that the second sound pattern stored in the storage unit 301 is based on the detected event event. It is determined that the sound pattern is correct and is stored in the storage unit 301 as it is without updating the second sound pattern (step S406).

  On the other hand, when the determination result indicates that the detected event event has not occurred (step S405: No), the update unit 304 determines that the event event is generated by collecting the first sound pattern indicated by the received sound information. In the sound pattern candidates stored in the storage unit 301, the second sound pattern is updated (step S407). Thus, even if a sound pattern similar to the first sound pattern indicated by the received sound information is collected again, it is possible to prevent the event event from being detected. In other words, the second sound pattern is changed to the actual sound pattern. Since it is possible to approach the sound pattern emitted by the event, the detection accuracy of the event event can be improved.

  Specifically, when the first sound pattern indicated by the received sound information is a volume, the update unit 304 matches the volume range of the specified second sound pattern with the volume of the first sound pattern. And change to a volume that is not similar. For example, the update unit 304 expands or reduces the volume range of the second sound pattern or changes at least one of the upper limit and the lower limit of the volume range of the second sound pattern.

  Alternatively, when the first sound pattern indicated by the received sound information is a frequency, the update unit 304 sets the frequency of the specified second sound pattern to a frequency that does not match or resembles the frequency of the first sound pattern. change. For example, the update unit 304 expands or reduces the frequency range of the second sound pattern, or changes at least one of the upper limit and the lower limit of the frequency range of the second sound pattern.

  As described above, according to the traffic congestion monitoring system according to the first embodiment, the sound pattern candidates stored in the storage unit 301 can be brought closer to the sound pattern generated by an actual event. Detection accuracy can be improved.

(Second Embodiment)
In this embodiment, when the reliability of the information collection terminal that has collected the first sound pattern indicated by the received sound information is higher than a predetermined reliability, road information that notifies the occurrence of an event event (an example of third information) Is transmitted to the information providing terminal. In the following description, description of the same parts as those in the first embodiment is omitted.

  In the present embodiment, the central processing unit C includes a storage unit 301 and a communication unit 302 that are different from those in the first embodiment, in addition to the detection unit 303 and the update unit 304. When a sound pattern that coincides with a sound pattern candidate is emitted, the storage unit 301 is a degree of reliability that an event stored in association with the sound pattern candidate is generated (in other words, the event is surely generated). I remember). The reliability increases each time a first sound pattern that matches the sound pattern candidate is collected and an event stored in association with the sound pattern candidate is detected as an event event. .

  FIG. 5 is a flowchart illustrating an example of a flow of sound pattern candidate update processing by the central processing unit of the traffic congestion monitoring system according to the second embodiment. In the present embodiment, when an event event is detected by the detection unit 303 (step S403: Yes), the communication unit 302 determines whether or not the detected event event is an automatic event event generation target (step S501). Here, the automatic event event generation target is an event stored in association with a second sound pattern having a reliability higher than a predetermined reliability.

  When it is determined that the detected event event is not an automatic event event generation target (step S501: No), the communication unit 302 proceeds to step S404 and notifies the road manager of the detected event event. On the other hand, when it is determined that the detected event event is an automatic event event generation target (step S501: Yes), the communication unit 302 generates an automatic event event including road information that notifies the occurrence of the detected event event. (Step S502). Then, the communication unit 302 registers the generated automatic event event in a traffic control system (not shown), transmits the generated automatic event event to the information providing terminal E, and is a user of the information providing terminal E. Road information is provided to the road user (step S503).

  As described above, according to the traffic congestion monitoring system of the second embodiment, when it is determined that the reliability of the second sound pattern is high, the automatic event event is automatically notified to the information providing terminal E. The road information for notifying the event that has occurred on the road to be monitored can be immediately provided to the road user via the information providing terminal E.

  In the present embodiment, the communication unit 302 always generates an automatic event event when the event event is detected by the detection unit 303 and the reliability of the second sound pattern is higher than a predetermined reliability, and the information providing terminal E However, if the operator of the central processing unit C has set to prohibit the generation of automatic event events, whether or not an event event has been detected is stored as log data. And Then, when the operator of the central processing unit C performs the setting for permitting the generation of the automatic event event, the reliability of the second sound pattern stored in association with the detected event event is referred to the log data. It is determined whether the degree is higher than a predetermined reliability, and when the reliability of the second sound pattern is higher than the predetermined reliability, an automatic event event may be generated and transmitted to the information providing terminal E .

  As described above, according to the first and second embodiments, the detection accuracy of event events can be improved.

  Note that the program executed by the central processing unit C of the present embodiment is provided by being incorporated in advance in a ROM (Read Only Memory) or the like. The program executed by the central processing unit C of the present embodiment is an installable format or executable format file, and is a computer such as a CD-ROM, flexible disk (FD), CD-R, DVD (Digital Versatile Disk). The information may be provided by being recorded on a recording medium that can be read by the user.

  Furthermore, the program executed by the central processing unit C of the present embodiment may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. The program executed by the central processing unit C of the present embodiment may be configured to be provided or distributed via a network such as the Internet.

  The program executed by the central processing unit C according to the present embodiment has a module configuration including the above-described units (communication unit 302, detection unit 303, and update unit 304). Unit) reads the program from the ROM and executes it, so that the above-described units are loaded on the main storage device, and the communication unit 302, the detection unit 303, and the update unit 304 are generated on the main storage device. .

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

A Information collection terminal B Interpolation device C Central processing unit D Display device E Information provision terminal 301 Storage unit 302 Communication unit 303 Detection unit 304 Update unit

Claims (4)

And events occurring road, a storage unit in association with the sound pattern candidate, and
A sound pattern collected by the sound collecting unit is received from a sound collecting unit installed on the road, and a monitoring camera image obtained by imaging the road by a monitoring camera arranged adjacent to the sound collecting unit is received. A receiving unit to
Among the sound pattern candidates stored in the storage unit, the received said event stored the sound pattern candidate and associated with matching the sound patterns, the first event triggered by Kion pattern before the received A detection unit to detect;
When the first event is detected, a transmission unit that transmits the received monitoring camera image to a display device provided in a traffic control room;
If from the display device, by road administrators, the determination of whether the result first event has occurred is input, the determination result indicates that the first event is judged not occurred as the first event is not detected by the pickup of the Kion pattern before the received Oite in the storage unit, an updating unit for updating the Kion pattern candidate before stored in association with the first event ,
An information processing apparatus comprising: The storage unit further stores a reliability that is associated with the event and increases each time the event is detected as the first event by the detection unit,
The transmitting unit may further, in the storage unit, when relaxin Yoriyukido before being stored in association with the first event detected by the detecting unit is higher than the predetermined level of reliability, the first thing Elephant the information processing apparatus according to 請 Motomeko 1 that sends the event to the notification information capable providing terminal to road users. A sound pattern collected by the sound collecting unit is received from a sound collecting unit set on the road, and a monitoring camera image obtained by imaging the road by a monitoring camera arranged adjacent to the sound collecting unit is received. And
Detection unit, in the storage unit, among the sound pattern candidates in association with the events occurring on the road Ru is memorize, the sound pattern candidate association with the stored event that matches said received sound pattern, received detecting a first event triggered by Kion pattern before the,
When the first event is detected, the transmission unit transmits the received monitoring camera image to a display device provided in a traffic control room,
The updating unit, from the display device, by road administrators, the determination of whether the result first event has occurred is input, the determination result, the first event is judged not to have occurred when showing the, as the first event by the sound collection of Kion pattern before it receives is not detected, updating the Oite in the storage unit, the first event and association with pre-stored Kion pattern candidates ,
An event detection method including: The storage unit further stores a reliability that is associated with the event and increases each time the event is detected as the first event by the detection unit,
Further, in the storage unit, when relaxin Yoriyukido before being stored in association with the first event detected by the detecting unit is higher than the predetermined level of reliability, the first thing elephants, to road users The event detection method according to claim 3 , comprising transmitting the event to an information providing terminal capable of notifying the event.

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