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 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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Accused Products
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
17 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 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. - 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 an analysis result of 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 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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A recording medium in which a program of command words which is executed by a digital processor so as to perform a traffic light control method in a traffic light control device controlling signal light change of a traffic light is materially implemented and which is able to be read by the digital processor, the program having recorded thereon the program for performing 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 an analysis result of 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 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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Specification