PROBLEM TO BE SOLVED: To provide a traffic light control device capable of appropriately switching a display state of a signal display unit even when a control signal for switching the display state of the signal display unit cannot be received.SOLUTION: A traffic light control device comprises: a power supply unit; a power storage unit; a power supply switching unit that switches between a first mode and a second mode, a detection unit that detects a traffic volume based on an image captured by an image capturing unit; and a display control unit which switches a display state of the signal display unit of the traffic light based on a switching signal received from outside of the device, when the power supply switching unit selects the first mode, and switches the display state of the signal display unit of the traffic light based on the traffic volume detected by the detection unit, when the power supply switching unit selects the second mode. The power supply switching unit selects the first mode when a voltage or a current supplied to the power supply unit is larger than a predetermined threshold value, and selects the second mode when the voltage or the current supplied to the power supply unit is lower than or equal to the predetermined threshold value.SELECTED DRAWING: Figure 1

    【課題】信号表示部の表示状態を切り替えるための制御信号を受信できない場合であっても、信号表示部の表示状態を適切に切り替えることができる信号機制御装置を提供する。【解決手段】信号機制御装置が、電源部と、蓄電部と、第1のモードと第2のモードとを切り替える電源切り替え部と、撮像部により撮像された画像に基づいて、交通量を検出する検出部と、電源切り替え部が第1のモードを選択している場合に、自装置の外部から受信した切替信号に基づいて信号機が備える信号表示部の表示状態を切り替え、電源切り替え部が第2のモードを選択している場合に、検出部が検出した交通量に基づいて表示状態を切り替える表示制御部と、を有し、電源切り替え部は、電源部に供給される電圧または電流が所定の閾値より大きい場合に第1のモードを選択し、電源部に供給される電圧または電流が所定の閾値以下である場合に第2のモードを選択する。【選択図】図1


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    Title :

    TRAFFIC LIGHT CONTROL DEVICE AND TRAFFIC LIGHT


    Additional title:

    信号機制御装置、および、信号機


    Contributors:
    INOUE HIDEYA (author) / SANKAKI KOJI (author)

    Publication date :

    2018-05-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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