Apparatus and method for controlling traffic signals
First Claim
1. A traffic light control device that controls signal light change of a traffic light, comprising:
- a broadcast signal receiving unit that receives a broadcast signal emitted from a traffic control center via a broadcast network; and
a traffic light control unit that determines an offset time from a reference traffic light on the basis of offset parameter of the broadcast signal when the traffic light is a control target traffic light belonging to a reference traffic light sharing group indicated by the broadcast signal and that outputs a control signal for controlling the light change of the control target traffic light so that a time point which is adjusted by the determined offset time from a signal light display start time point of the reference traffic light is matched with a signal light display start time point of the control target traffic light.
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Abstract
Device and method of controlling a traffic light on the basis of an analysis result of a broadcast signal transmitted via a broadcast network are provided. The traffic light control device controlling signal light change of a traffic light, includes: a broadcast signal receiving unit that receives a broadcast signal emitted from a traffic control center via a broadcast network; and a traffic light control unit that determines an offset time from a reference traffic light on the basis of an analysis result of the broadcast signal and that outputs a control signal for controlling the light change of a control target traffic light so that a time point which lags by the determined offset time from a signal light display start time point of the reference traffic light is matched with a signal light display start time point of the control target traffic light.
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Citations
16 Claims
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1. A traffic light control device that controls signal light change of a traffic light, comprising:
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a broadcast signal receiving unit that receives a broadcast signal emitted from a traffic control center via a broadcast network; and a traffic light control unit that determines an offset time from a reference traffic light on the basis of offset parameter of the broadcast signal when the traffic light is a control target traffic light belonging to a reference traffic light sharing group indicated by the broadcast signal and that outputs a control signal for controlling the light change of the control target traffic light so that a time point which is adjusted by the determined offset time from a signal light display start time point of the reference traffic light is matched with a signal light display start time point of the control target traffic light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A traffic light control method which is performed by a traffic light control device controlling signal light change of a traffic light, the traffic light control method comprising the steps of:
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receiving unit a broadcast signal emitted from a traffic control center via a broadcast network; analyzing the broadcast signal; determining an offset time from a reference traffic light on the basis of offset parameter of the broadcast signal when the traffic light belongs to a reference traffic light sharing group identified by the broadcast signal; and outputting a control signal for controlling the light change of a control target traffic light so that a time point which is adjusted by the determined offset time from a signal light display start time point of the reference traffic light is matched with a signal light display start time point of the control target traffic light. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification