Apparatus and method for displaying single signal-lamp
A signal light and signal technology, which is applied to the traffic control system, instrument, traffic control system of road vehicles, etc., can solve the problems of inability to correctly indicate the remaining time of the pedestrian signal, no indication, inability to distinguish between colorblind people and colorblind people.
Inactive Publication Date: 2003-03-26
朴泰荣
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Problems solved by technology
In other words, if the walking signal cycle of this signal controller is changed manually, or when the walking signal received by the signal light display device is unstable (such as unstable power supply), the shortcoming of the signal light display device is that it cannot correctly indicate the remaining time of the walk signal. time or no indication at all
[0008] Also, a person who is colorblind or partially colorblind cannot tell the difference between a red light and a green light, although one of the red and green lights is already on
Also, with display lights that show the remaining time, it is impossible for these people to identify which of the red and green lights is on
That is, they cannot determine whether the current remaining time display light indicates the remaining time of the red signal or the remaining time of the green signal
Method used
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[0022] Description of the preferred embodiment
[0023] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0024] figure 1 is a block diagram showing the device for displaying a single signal light according to the present invention.
[0025] Such as figure 1 As shown, the device for displaying the pedestrian signal includes a buffer 20 , a microprocessor 30 , a ROM 40 , a RAM 50 , a signal driver 60 and a signal display 70 .
[0026] The buffer 20 receives the walking signal from the signal controller 10 , temporarily stores it, and then outputs it to the microprocessor 30 .
[0027] The microprocessor 30 receives information corresponding to the on time, off time and blinking time of the walking signal generated from the buffer 20, and outputs the on signal, off signal and blinking signal in response to the corresponding information. In particular, the microprocessor 30 determines whether the ...
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The present invention provides an apparatus and method for displaying single signal-lamp. The apparatus uses LED (light-emitting diode), which is working together with a signal controller, for displaying the single signal-lamp. The apparatus takes count of open / close time of step signal generated by the signal controller, and takes inverse count of open / close time of said count according to reference value, such that remaining time of said step signal is displayed. And the apparatus determines the mode of the signal controller selected to be work mode or normal mode, and displays step signal according to the determined mode. Furthermore, the apparatus facilitates daltonist to recognize red signal, green signal and remaining time of the step signal.
Description
field of invention [0001] The present invention relates to an apparatus and method for displaying a single signal light using LEDs (Light Emitting Diodes) cooperating with a signal controller. Background technique [0002] Usually, pedestrian signal lights located near pedestrian crossings consist of a green light as a walking signal and a red light as a stop signal. The pedestrian signal light turns on the green light when receiving the walking signal from the signal controller, flashes (that is, turns on and off) the green light for a few seconds, and then turns on the red light. [0003] However, the disadvantage of this method of flashing the green light for a few seconds is that pedestrians cannot correctly identify the remaining walking time. [0004] In order to overcome this disadvantage, a walk signal that displays a remaining walking time of the walk signal using LEDs has been proposed. [0005] Figure 6 is a block diagram showing a conventional walk signal disp...
Claims
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IPC IPC(8): G08G1/095G08G1/096
Inventor 朴泰荣
Owner 朴泰荣