JP-7856157-B2 - Communication management device, communication management method, and program

Inventors

• 佐藤 祐児
• 尾形 一気
• 高澤 淳
• 利根川 敬志
• 小林 航生
• 吉川 英希

Assignees

• 日本電気株式会社

Dates

Publication Date

20260511

Application Date

20220824

Claims (9)

1. Communication devices placed at intersections , A means for acquiring traffic information at the aforementioned intersection as video, An analysis means for analyzing the video acquired by the acquisition means, A storage means for storing past images of the aforementioned intersection, Equipped with , The analysis means compares the past video footage with the video footage of the intersection acquired by the acquisition means to analyze the cause of the communication failure of the communication means. Communication management device.
2. A driving means for changing the orientation of the communication means, When the cause of the communication failure of the communication means is analyzed by the analysis means, a control means is provided to cause the drive means to change the orientation of the communication means according to the cause of the communication failure, Equipped with, The communication management device according to claim 1.
3. The cause of the aforementioned communication failure is an obstacle that hinders communication by the communication means. The communication management device according to claim 2 .
4. The analysis means predicts the movement of the obstacle, The control means causes the drive means to change the orientation of the communication means in accordance with the predicted movement of the obstacle. The communication management device according to claim 3 .
5. The past video footage of the aforementioned intersection is footage of the intersection when the communication quality deteriorated. The analysis means identifies the cause of the communication failure of the communication means when the similarity between past video footage of the intersection and video footage of the intersection acquired by the acquisition means is greater than or equal to a predetermined value. The control means causes the drive means to change the orientation of the communication means according to the cause of the communication failure. The communication management device according to claim 2 .
6. The past video footage of the aforementioned intersection is footage of the intersection when the communication quality was good. The analysis means compares the video of the intersection when the communication quality is good with the video of the intersection acquired by the acquisition means when the communication quality deteriorates, in order to identify the cause of the communication failure. The communication management device according to claim 2 .
7. If the analysis means does not identify the cause of the communication failure of the communication means, the control means will not allow the drive means to change the orientation of the communication means. The communication management device according to claim 6.
8. A communication management method performed by a communication management device, To acquire traffic information at intersections as video, The acquired video footage is analyzed , To record past images of the aforementioned intersection, Includes, Analyzing the aforementioned video includes comparing the aforementioned past video with the acquired video of the intersection to analyze the factors causing communication failures of the communication means installed at the intersection. Communication management methods.
9. On the computer, The process of acquiring traffic information at intersections as video, The process involves analyzing the acquired video footage, A process to record past images of the aforementioned intersection, Make it run, The process for analyzing the aforementioned video includes comparing the aforementioned past video with the acquired video of the intersection to analyze the cause of the communication failure of the communication means installed at the intersection. program .

Description

This invention relates to a communication management device, a communication management method, and a program. Conventionally, communication devices have been developed that detect obstacles and change the direction of a directional antenna to avoid those obstacles. A related technology is the invention disclosed in Patent Document 1 below. Patent Document 1 discloses a communication device comprising: an obstacle detection unit that detects when a communication obstacle enters the wireless propagation path between the vehicle and the communication partner; an edge detection unit that detects the edge shape of the communication obstacle as viewed from the vehicle; and a control unit that controls the wireless communication unit to change the direction of the directional beam from the directional antenna from a direction toward the communication partner to a direction toward the edge of the communication obstacle when a communication obstacle enters the wireless propagation path. Japanese Patent Publication No. 2020-080066 This is a block diagram showing an example configuration of a communication management device according to a first exemplary embodiment of the present invention.This is a flowchart showing the flow of a communication management method for a communication management device according to a first exemplary embodiment of the present invention.This figure shows an example of an intersection where a communication management device according to a second exemplary embodiment of the present invention is located.This is a block diagram showing an example configuration of a communication management device according to a second exemplary embodiment of the present invention.This block diagram shows the configuration of a computer that functions as a communication management device according to each exemplary embodiment. [Exemplary Embodiment 1] <Communication management device 1 according to exemplary embodiment 1> A first exemplary embodiment of the present invention will be described in detail with reference to the drawings. This exemplary embodiment is the basic form of the exemplary embodiments described later. The reference numerals in the drawings appended to this summary are added for convenience to each element as an example to aid understanding, and are not intended to limit the present invention to the illustrated form. In addition, the connection lines between blocks in the drawings and other references referred to in the following description include both bidirectional and unidirectional lines. Unidirectional arrows schematically indicate the flow of the main signal (data) and do not exclude bidirectionality. Furthermore, the input and output connection points of each block in the figures may be configured to include ports or interfaces, but these configurations are omitted from the illustration. Figure 1 is a block diagram showing an example configuration of a communication management device 1 according to a first exemplary embodiment of the present invention. As shown in Figure 1, the communication management device 1 according to this exemplary embodiment includes a communication means 11, an acquisition means 12, an analysis means 13, a driving means 14, and a control means 15. The communication means 11 is capable of communicating with the base station, is positioned at an intersection, and has directionality. The communication means 11 is, for example, a directional antenna. The communication means 11 may experience communication failures due to multiple factors, such as obstacles between it and the base station causing communication problems, or radio interference causing communication problems. Base stations include, for example, gNBs (next generation Node B) in the 5G (fifth-generation mobile communication system) core network (5GC) as defined by 3GPP (Third Generation Mobile Communications System Partnership Project), or eNBs (evolved Node B) in the 4G (fourth-generation mobile communication system) core network (4GC). The communication means 11 is installed at traffic lights at intersections, etc., in a location where communication with the base station is not obstructed by ordinary cars, pedestrians, etc. However, there is a possibility that communication with the base station may be obstructed by large vehicles such as trucks. The acquisition means 12 acquires traffic information at the intersection as video. The acquisition means 12 acquires video footage captured by, for example, one or more cameras positioned at the intersection. The one or more cameras may capture video footage of the entire intersection, or only video footage of a portion of the intersection. The analysis means 13 analyzes the video acquired by the acquisition means 12. The analysis means 13 identifies objects in the video by performing object recognition using deep learning, such as a convolutional neural network (CNN). For example, the analysis means 13 is configured to identify vehicles and their make an