TUNNEL VIDEO SYSTEM ADAPTIVE TO TRAIN SPEED VARIATION
First Claim
1. A tunnel video system comprising:
- a main controller for operating and managing the system, the main controller being connected with exterior networks;
a plurality of display controllers connected with the main controller so as to receive data;
a plurality of LED modules driven by the plurality of display controllers; and
a plurality of sensors connected at least one of the plurality of display controllers so as to sense the speed of a moving object,in which the plurality of display controllers are divided into a plurality of clusters comprising the display controllers connected with the sensors and the display controllers connected with the main controller, respectively,one of the display controllers in each of the clusters is a cluster leader display controller which has the data transmitted to the display controllers included in the same cluster by a data network that comprises a first route connected with the main controller and a second route connected with the rest display controllers included in the same cluster, andthe display controllers connected with the sensors among the display controllers included in each of the clusters have sensor signals transmitted to the display controllers included in the same cluster by a sensor network that comprises a third route connected with the display controllers included in the same cluster.
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Accused Products
Abstract
As the advertisement market of a subway has emerged, a new subway advertisement system for displaying a video in a window of a moving train is suggested. The video quality in such a subway advertisement system is dependent on the accurate and rapid measurement of the speed of the train and achievement of the frame and horizontal pixel synchronization of the video to be represented. A sensor network of a cluster structure is provided that is effective to the subway advertisement system offering based on the network a high-speed/high precision speed measurement and the adaptive synchronization algorithm. Further, the video contents must be often renewed in the subway advertisement system and a speedy data downloading is essential. The tunnel video system suggests a method for improving the data speed through constructing a new structure of a data exclusive network in addition to the sensor network.
13 Citations
15 Claims
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1. A tunnel video system comprising:
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a main controller for operating and managing the system, the main controller being connected with exterior networks; a plurality of display controllers connected with the main controller so as to receive data; a plurality of LED modules driven by the plurality of display controllers; and a plurality of sensors connected at least one of the plurality of display controllers so as to sense the speed of a moving object, in which the plurality of display controllers are divided into a plurality of clusters comprising the display controllers connected with the sensors and the display controllers connected with the main controller, respectively, one of the display controllers in each of the clusters is a cluster leader display controller which has the data transmitted to the display controllers included in the same cluster by a data network that comprises a first route connected with the main controller and a second route connected with the rest display controllers included in the same cluster, and the display controllers connected with the sensors among the display controllers included in each of the clusters have sensor signals transmitted to the display controllers included in the same cluster by a sensor network that comprises a third route connected with the display controllers included in the same cluster. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12, 13, 14)
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9. A tunnel video system comprising:
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a main controller; a plurality of display controllers connected with the main controller so as to receive a data; a plurality of LED modules driven by the plurality of display controllers; and a plurality of sensors connected to at least one of the plurality of display controllers so as to sense the speed of a moving object, in which at least one of the plurality of display controllers drives each of the LED modules according to first speed signals sensed by the sensors arranged in a first direction and second speed signals sensed by the sensors arranged in a second direction. - View Dependent Claims (10, 11, 15)
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Specification