JPH0332840B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a sign display device, and specifically relates to a display portion formed in a rod shape and covered with a cover made of a material that transmits light, and a display portion connected to the display portion. The present invention relates to a sign display device that functions as a specific sign by grasping the grip and shaking the display section left and right or up and down.

(Prior Art) As a conventional sign display device of this type, there is, for example, a stop bar used by a police officer or the like when regulating traffic. This stop bar has a light projecting portion formed at the tip of the cylindrical body. The light projector consists of a light bulb and a window that surrounds it. By operating a switch at hand, power is supplied to the light bulb, causing the light bulb to light up continuously and emitting light from the window. Police officers signal the driver of the vehicle to stop by waving a stop stick from side to side toward the approaching vehicle.

It can be said that the movement of the light beam emitted from the tip of the stop bar from side to side functions as a kind of sign that tells you to stop.

(Problems to be Solved by the Invention) In the above-mentioned sign display devices such as stop bars, the display function is simply to turn on a light bulb continuously and move the emitted light from side to side. It cannot be said that it is possible to sufficiently arouse the attention of such viewers.

Therefore, characters, figures,
If a sign has a more specific display function, such as displaying a symbol, the content of the sign can be conveyed to the viewer in a more concrete manner.For example, in the case of a stop bar, it is possible to sufficiently draw the attention of vehicle drivers. However, the display surface must be made considerably large in order for viewers who are far away to clearly recognize the displayed content. Therefore, there is a problem that the display section becomes large, the structure becomes complicated, and the cost becomes high, which is impractical.

However, if a sign display device such as a stop bar could have a more specific display function as described above, it could be used for various purposes, such as when a vehicle breaks down at night or in a tunnel, and when asking for help from others. It can be used for purposes such as displaying specific information.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a sign display device that has a simple configuration and improves the function of attracting the attention of viewers without increasing the size of the display section. That is.

(Means for Solving the Problems) A sign display device according to the present invention for achieving the above object includes a rod-shaped display body, a ROM, a light emitting diode, an address data generating means, a pendulum switch, and a battery. The bar-shaped display body includes a display part and a grip part integrated with the display part, and M-bit light emitting diodes are linearly arranged in the display part. ROM
The lighting is controlled in response to the output of the light emitting diode, and the ROM is configured to control a virtual display area of N bits, where one vertical column corresponds to M bits of the light emitting diode and N columns correspond to the horizontal column. It stores display data such as a predetermined character string, and is read out at an output address of the address data generation means, and the address data generation means is configured to store display data such as a predetermined character string. When it is detected according to the output signal of the pendulum switch, the
It generates address data for reading the display data of the ROM in M-bit units in a predetermined order. The device is characterized in that when it is swung, it resets the address data generating means, and when it is swung in one predetermined direction, it releases the reset state and provides a signal to start operation.

(Function) In the present invention, characters to be displayed on a virtual display surface of M×N bits are displayed on a virtual display surface of M×N bits using a bit image.
It is divided vertically into bits and stored in the ROM as N pieces of display data in advance.
M-bit parallel display data is sequentially read out from the ROM in correspondence with the virtual display area and output to M-bit light emitting diodes linearly arranged on the display section.

By configuring like this, the apparent size is M×N.
Characters, etc. can be displayed on the bit dot matrix display screen.

Furthermore, since the content displayed on the display section is specifically shown as an afterimage such as a character string, it is possible for the viewer to clearly recognize the displayed content.

Furthermore, when the display section is shaken in one predetermined direction by grasping the grip, display data is output to the M-bit light emitting diodes, and when the display section is returned to the opposite direction, the display data is output. Since it is configured to stop, when the display unit is swung in one predetermined direction, the character string etc. is displayed continuously in the order of display → disappear → display, and since the afterimage is used, the viewer It is possible to draw very strong attention to this.

(Example) Hereinafter, an example of the sign display device according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows the appearance of a sign display device according to the present invention, and in the figure, a rod-shaped display body 10 is composed of a display section 100 covered with a cover made of a material that transmits light, and a grip section 102. These are connected via a spring (not shown). A plurality of (eight in this embodiment) display elements, for example, light emitting diodes 60-1N60-8, are arranged within the display section 100.
In addition, various circuit parts, power supplies, etc. are built into the grip part 102, and a power switch SW is installed outside of the grip part 102.
1. All light emitting diodes 60-1 to 60-8,
An all-lighting switch SW2 that is operated to turn on the light and a variable resistor VR1 for changing the oscillation frequency of a clock pulse generation circuit 40, which will be described later, are provided.

Next, FIG. 2 shows a specific configuration of the display circuit of the sign display device. In the figure, the display circuit includes a ROM 20 as a storage means, a binary counter 30 and a clock pulse generation circuit 40 as address data generation means, and a group of light emitting diodes 60-1 to 60-6 for displaying display data read out from the ROM 20.
0-8, and a pendulum switch SW3 as a reset means for resetting a binary counter. In Figure 2, the circuit A is for generating a signal for counting up the address output circuit shown in C, and the circuit B is for generating a signal for counting up the address output circuit shown in C.
This circuit returns the counter value of the address output circuit to O. In addition, the address output circuit of C outputs Q 1 to A ₁ to the ROM20A ₀₁ to A ₁ according to the signal of the circuit of A.
_Q12 . Therefore, first, when a signal is output from the circuit B, the circuit C becomes the initial state (address=0). Then, by inputting the count-up signal from circuit A to circuit C, address signals that have been counted up sequentially are output. The output of the above address is from 0 to 4095, and when it reaches 4095, it returns to 0 and counts up again from 0. However, if a signal from circuit B is input during the count-up, the address returns to the initial 0.

The display data stored in the ROM 20 is created as follows, and is formed when the display section 100 of the rod-shaped display body 10 to be stored is swung out. For example, the third
As shown in the figure, a virtual display area of M×N bits (8 bits in the vertical direction) and N bits in the horizontal direction by the light emitting diodes 60-1 to 60-8 in the display unit 100 is displayed, for example. Suppose that a message "Stop" is displayed. In this case, the display area is vertically divided into M bits, that is, 8 bits, to provide N pieces of display data. The light emitting diode 60-1 located at the tip side of the display unit 100 is
The most significant bit in the memory area of 20 corresponds to the least significant bit of the light emitting diode on the hand side, and the bit corresponding to the light emitting diode to be turned on is set to "1", and the bit corresponding to the light emitting diode to be turned off is set to "1". Set to “0”.

Then, the 8-bit display data is further divided into 4 bits each to create data in hexadecimal representation, and this is stored in the storage area of the ROM 20, for example, from address 0 to address N-1, as shown in Figure 4. It comes to show.

Further, the binary counter 30 counts the clock pulses output from the clock pulse generation circuit 40,
The count output is output from output terminals Q1 to Q12 to the ROM 20 as address data. The binary counter is configured to be reset by the switch output of the pendulum switch SW3.

The clock pulse generation circuit 40 is connected to a capacitor C.
1. The oscillation frequency of the clock pulse is determined by the constants of the resistor R2 and the variable resistor VR1, and the oscillation frequency can be changed by adjusting the resistance value of the variable resistor VR1. When the oscillation frequency of the clock pulse is changed, the output timing of the skin data is changed, so that characters, etc. to be displayed can be enlarged or reduced in the horizontal direction (direction in which the display section is oriented).

Inverters 50-1 to 50-7, transistor Q1, and resistors R13 to R20 are light emitting diodes 60.
-1 to 60-8 constitutes a drive circuit.

The data output terminals D0 to D7 of the ROM 20 are connected to the input terminals of the inverters 50-1 to 50-7, and these signal lines are connected to the resistors R5 to R12 and the full lighting switch SW2, respectively.
Connected to battery VB via.

Fixed contact a of pendulum switch SW3 is floating from the ground, and fixed contact b is connected to the power switch.
Connected to battery VB via SW1,
For example, when grasping the grip part 102 of the rod-shaped display body 10 and swinging out the display part 100 from left to right,
The movable contact P contacts the contact a side, and conversely, when the display unit 100 is returned from right to left, the movable contact P contacts the contact b.

The operation of the display circuit of the sign display device having the above configuration will be explained. First, turn on the power switch SW1 and leave all the lighting switches off. Power is supplied to each circuit section, and the circuit section is in an operating state.
Shake 0 left and right.

By the way, after the power switch SW1 is turned on, the capacitor C2 is always charged.
The connection point n between the capacitor C2 and the resistor R3 is approximately at ground potential. Therefore, when the display section 100 is returned from the right to the left direction, the pendulum switch SW3
The movable contact P contacts the fixed contact b side, and the connection point n
The potential of increases from ground potential to the power supply voltage of battery VB. This voltage is differentiated by a differentiating circuit consisting of a capacitor C3 and a resistor R4, and is sent to the reset terminal R of the binary counter 30 as a reset pulse.
A positive pulse is output. As a result, the binary counter 30 is in a reset state.

Next, when the display unit 100 is swung from left to right, the movable contact P of the pendulum switch SW3 comes into contact with the fixed contact a, so that the potential of the connection point n becomes
The power supply voltage VB drops to the ground potential, a negative pulse is output to the reset terminal R of the binary counter 30, and the reset state is released. The binary counter counts the clock pulses output from the clock pulse generation circuit 40, and outputs the counted output, that is, address data from the output terminals Q1 to Q12.
It is output to input terminals A0 to A11 of the ROM20.
In the binary counter 30, the clock pulse generation circuit 4
Each time one clock pulse is input from 0 to the counter input terminal C of the binary counter 30, the address is updated, and from the ROM 20, the address is updated from the 0th address to the Nth address.
The display data up to the address is sequentially displayed by the inverter 50-
1 to 50-7 are outputted via the transistor Q1, and the light emitting diodes 60-1 to 60-8 are turned on or off in a predetermined pattern, and eventually a display area of M×N bits is displayed as shown in FIG. A character string such as "Stop" will be displayed.

Further, as described above, when the display section 100 is swung from right to left and the character string "Stop" is displayed, when the display section 100 is returned from left to right,
Since the binary counter 30 is reset by the operation of the pendulum switch SW3, the display operation on the display section 100 is stopped. Therefore, the rod-shaped display body 10
When you repeat the action of swinging left and right at a nearly constant speed,
The character string "Stop" will be displayed repeatedly intermittently.

Next, the light emitting diodes 60-1 to 60-1 of the display section 100
If all 60-8 are to be used in a constantly lit state, operate the all lighting switch SW2 to turn them on. When the full lighting switch SW2 is turned on, the chip enable terminal of the ROM 20 becomes high level, and the ROM 20 no longer outputs display data.

At the same time, all lighting switch SW2, resistor R5
〜R12 to each inverter 50-1 to 50-
Since a high level signal is input to the input terminal of transistor Q1 and the base of transistor Q1, all of the light emitting diodes 60-1 to 60-8 are turned on.

In this way, the light emitting diodes 60-1 to 60-8
By swinging the rod-shaped display body 10 from side to side with all of them blinking, it can also have the same function as a conventional stop rod.

In this embodiment, the display section 100 and the grip section 10
2 is connected via a spring, and is configured to swing left and right due to the natural frequency of the display unit 100 and the spring, so that, for example, the character string "Stop" is displayed in a stable and easy-to-read state.

In addition, the clock frequency of the clock pulse generation circuit 40 is set within the time required for a stroke (one way) when the bar-shaped display body 10 is swung left and right.
The display area formed by the stroke is M×N bits (M: vertical direction, N:
horizontal direction), the frequency is set to allow the light emitting diodes 60-1 to 60-8 to blink N+ (20 to 30) times. In this case, if it is desired to horizontally enlarge or reduce each character of the displayed character string, the variable resistor VR1 can be used to adjust and change as appropriate.

Although the present embodiment has been described using character strings as the display target, the present invention is not limited to this, and graphics, symbols, etc. may also be displayed.

(Effects of the Invention) As explained above, the present invention corresponds to a virtual display area formed when the display section is swung out, with M bits in the vertical direction and N bits in the horizontal direction (direction of swiveling). Display data such as a character string to be displayed in the display area is vertically divided into M bit units as a dot image, stored in advance in the ROM as N pieces of data, and the display part is held by grasping the grip part. When the display is started, the M-bit parallel display data is sequentially read out from the storage means in correspondence with the virtual display area and output to the M-bit light emitting diodes linearly arranged on the display section. Therefore, without increasing the size of the display,
It has a simple configuration and can improve the function of calling attention to the caregiver.

[Brief explanation of drawings]

FIG. 1 is an external view of a sign display device according to the present invention;
FIG. 2 is a circuit diagram showing a specific configuration of an embodiment of the display circuit of the sign display device shown in FIG. 1; FIG. 3 is an explanatory diagram showing the relationship between a character string to be displayed and display data; FIG. 4 is an explanatory diagram showing the storage state of display data in the ROM, and FIG. 5 is an explanatory diagram showing the usage state of the sign display device according to the present invention. 10... Rod-shaped display body, 20... ROM, 30...
...Binary counter, 40...Clock pulse generation circuit, 60-1 to 60-8...Light emitting diode, 1
00...display section, 102...grip section, SW1...
Power switch, SW2...All lighting switch, SW
3... Pendulum switch.

Claims (1)

[Claims] 1. A rod-shaped display body 10, a ROM 20, light emitting diodes 60-1 to 60-8, address data generation means 30, 40, a pendulum switch SW3,
The rod-shaped display body 10 includes a display section 100 and a grip section 102 integrated with the display section 100, and the display section 100 includes an M-bit light emitting diode 60.
-1 to 60-8 are arranged linearly, and the above-mentioned
The lighting is controlled in response to the output of the ROM 20, and the ROM 20 has N bits in which one column in the vertical direction corresponds to M bits of the light emitting diodes 60-1 to 60-8 and N columns in the horizontal direction. The address data generating means 3 stores display data such as a predetermined character string for a virtual display area of the address data generating means 3.
The address data generating means 30, 40 detects that the rod-shaped display body 10 is swung in a predetermined direction according to the output signal of the pendulum switch SW3. When the display data of the ROM 20 is
The pendulum switch SW3 generates address data to be read out in a predetermined order bit by bit.
The device detects the direction in which the object is swung, and resets the address data generating means 30, 40 when the object is swung in a predetermined opposite direction, and releases the reset state when it is swung in one predetermined direction. A sign display device characterized in that it gives a signal to start an operation.