JPH06214509A - Signal lamp unit with character display - Google Patents

Abstract

PURPOSE:To utilize the after-image phenomenon of the naked eye and to obtain effect more than before with a small number of light emission bodies by providing a light emission array at the external end part of a rotary substrate in parallel to the shaft of the rotary substrate, controlling the position timing of its blinking, etc., by a microcomputer, and rotating the rotary substrate at a specific speed. CONSTITUTION:The rotary substrate 1 is coupled with a holding frame 3 by a rotary shaft 4 through a bearing 5. The rotary shaft 4 is supplied with a turning force by a driving electric motor and the rotary substrate 1 is rotated. At the external end part of the rotary substrate 1, light emitting diodes 2 are arrayed in parallel to the rotary shaft. The number of the light emitting diodes 2 is determined by constituting character bits. The microcomputer and an IC 10 are arranged on the rotary disk 1 and the light emission timing, light emission time, etc., of the respective light emitting diodes are controlled. A proximity switch moving part 7 is arranged at the lower end of the rotary substrate 1 and faces a proximity switch fixing part 11, and a pulse is generated each time they face each other to hold the rotating speed at a reference value. The position reference of the rotary substrate 1 is thus obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal lamp with a character display.

[0002]

2. Description of the Related Art Signal lamps of various types are commonly used. However, if a character display is also displayed in the signal lamp, the meaning of the signal can be transmitted well, and the effectiveness thereof is extremely wide, so that it is widely used. There is. In order to change the type of character, it has been generally used to arrange light-emitting bodies in a matrix and thereby create a character for lighting display.

[0003]

However, since the conventional one is formed in a matrix, the number of light emitters is large, the structure is complicated, and the cost cannot be increased. In addition, in the display in the other direction, there was a problem that the matrix light emitting bodies had to be installed by the number of surfaces facing each other in this direction.

It is an object of the present invention to provide a signal light device which takes advantage of the physiological afterimage phenomenon of the naked eye to obtain these effects with an extremely small number of light emitters and to obtain an effect equal to or higher than that.

[0005]

In order to achieve the above object, in the marker lamp of the present invention, a row of light emitters is provided at the outer end of the rotating substrate in parallel with the axis of the rotating substrate. A rotating substrate is rotated at a predetermined speed by controlling a blinking position timing and the like by a microcomputer. As a result, when blinking is performed by a process based on the displayed characters and figures, the corresponding characters and figures are displayed at the end position of the rotating substrate due to the afterimage effect of the inner eye.

[0006]

The operation of the present invention will be described with reference to the drawings. Figure 2
In, the rotating substrate 21 rotates about the shaft 23. At the outer end portion of the rotating substrate, the light emitting bodies 22 are arranged in a line in parallel with the shaft 23. Each light emitter can be independently blinked.

As an example, as shown in FIG.
_{It is} assumed that the motor rotates at a constant speed from the position _{0 to} the position t ₆ . In this case, each light emitter is turned on according to the positional relationship shown in FIG. That is, in FIG. 4, the light emitter in the stage a is lit at the position t ₄ (that is, time), and the light emitter in the stage c is t.
_The light is turned on at the positions of ₂ , t ₄ , t ₅ , and t ₆ and turned off at the other positions. Hereinafter, the same operation is performed in each stage.

When such an operation is performed and the rotation speed is increased to some extent, the signal characters can be assembled and recognized due to the physiological afterimage phenomenon of the naked eye.

[0009]

Embodiments will be described with reference to the drawings. In FIG. 1, the rotary substrate 1 is connected to a holding frame 3 by a rotary shaft 4 via a bearing 5. The rotating shaft 4 is given a rotating force by a drive motor, and the rotating substrate 1 is rotated. The light emitting diodes 2 are arranged at the outer end of the rotating substrate 1 in parallel with the rotation axis. The number of light emitting diodes is determined by the character bit that constitutes them. A microcomputer and an IC 10 are arranged on the rotating substrate to control the light emission timing, light emission time, etc. of each light emitting diode. Light emitting diode, microcomputer,
Power for the IC 10 and the like is externally supplied via the rotary transformer 6. At the lower end of the rotating substrate 1, a proximity switch movable part 7 is arranged, which faces the fixed part 11 and the fixed part serves as a reference point.

When the power source is connected in the above structure, the rotor is rotated by the drive motor. A pulse is generated each time the rotating substrate faces the proximity switch, and the number of pulses is counted within a unit time. The count number is compared with a reference value, and the difference is fed back to adjust the voltage or frequency supplied to the drive motor to keep the rotation number at the reference value.

On the other hand, a pulse is generated by another proximity switch, and this is used as the position reference of the rotor. As shown in the flowchart of FIG. 5, when this pulse is generated, time counting is started and the light emitting diode is caused to emit light for a predetermined time. This goes out after a certain period of time. The blinking time of the light emitting diodes varies depending on the order of arrangement in rows. As an example, as shown in FIG. 4, the character "stop" is marked as the light emission locus of the arrayed light emitting diode at the rotor end.

The above turning on / off control is performed by the CPU of the microcomputer shown in FIG. 6, and the data of the marking characters is stored in the ROM. Each time the rotating substrate passes the reference point, the proximity switch 7 generates a synchronization pulse, and FIG.
A signal is transmitted to the CPU 66 via the I / O device 64 shown in FIG. As a result, the signals stored in the ROM 65 are transferred to the CPU
, While the timing pulse generated by the OSC 63 is counted, and the lighting control device 62 blinks according to the timing schedule.

The type of the marking character information retrieved from the ROM 65 (that is, the type of the marking character) is selected by the marking type switching circuit 67. In addition, it is possible to alternately indicate different characters for each rotation or half rotation of the rotating substrate by a signal from the marking character switching circuit 67. In this case, the marking character switching pulse is generated by a proximity switch different from that for generating the synchronizing pulse.

These relationships are shown in the flow chart shown in FIG. That is, when the rotating substrate passes the reference point, the pulse generator for time counting is activated and pulse counting is started. When the count point reaches t ₂ point in FIG. 4, for example,
The corresponding light emitting diode, in this case c in FIG.
The columns d and e are selectively turned on. This goes out after a certain period of time.

Power is supplied to each of the electronic components arranged on the rotary substrate, which is performed via a rotary connector or a rotary transformer. The lighting control timing pulse may be generated using a timing circuit built in the CPU.

[0016]

Since the present invention is constructed as described above, it has the following effects. The number of light emitters in the present invention is extremely small compared to the conventional method, and not only the number of light emitters themselves, but also the associated wiring, control circuit, etc. of the light emitters are greatly reduced, which greatly contributes to cost reduction. Is.

Further, since a unique flicker display state can be achieved by controlling the rotation speed of the rotating substrate, it is possible to make the display state visually different from the conventional display method, and it is extremely effective in attracting attention of the interpersonal person. Is large.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a configuration state of a signal light device according to the present invention.

FIG. 2 is a perspective view of a rotating substrate portion of the signal lamp according to the present invention.

FIG. 3 is a relationship diagram of a position direction of a light emitting element array with respect to a viewing direction and time.

4 is a relationship diagram of blinking of each light emitting element for each time in FIG.

FIG. 5 is a control flow diagram regarding blinking of the light emitting element.

FIG. 6 is a block diagram showing a configuration of a main part according to the present invention.

[Explanation of symbols]

 1, 21 Rotating substrate 2, 22 Light emitting diode 4, 23 Rotating shaft 6 Rotating connector, Rotating transformer 7 Proximity switch (movable part) 10 Microprocessor, RAM, ROM 11 Proximity switch (fixed part)

Claims (3)

[Claims] 1. A rotating substrate 1, a group of luminous bodies 2 arranged in a row at the outer end of the substrate in parallel with the rotation axis, and opposed switches 7 and 11 for detecting when the substrate passes a fixed position. A signal lamp provided with means for forming characters and figures on the rotation locus surface of the substrate end by blinking each light emitter according to a predetermined time schedule as the substrate rotates based on the passing detection time. . 2. A plurality of predetermined time schedules,
The signal lamp according to claim 1, further comprising means capable of selecting the signal lamp. 3. The signal lamp according to claim 1, wherein the light emitter is a light emitting diode.