JP2003301429A - Safety display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure safety in a construction site by quickly sensing troubles such as fall or movement of a cone which is a safety marking installed on a road and immediately restoring the marking producing the fall or movement. <P>SOLUTION: A safety display used in road construction is composed of a body installed on a ground, and an informing device installed at a position separated from the body. A transmitter incorporated in the body has a vibration sensor for detecting vibration of the body, an ID signal generator for generating an ID signal on the basis of a detection signal of the vibration sensor, and a transmitting part for transmitting the generated ID signal. The informing device is provided with: a receiving part for receiving the ID signal from the transmitter; an ID signal decoder for decoding the received ID signal; a memory for recording a message for information; a selector for selecting the message on the basis of the decoded ID signal; and an informing part for displaying the selected message. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security display device used for road construction and the like.

[0002]

2. Description of the Related Art When road construction is carried out, a safety sign cone is set in front of the construction site to indicate that road construction is being carried out for safety. This cone is
A cone-shaped main body made of rubber, plastic, or the like is generally provided with a flange-shaped seat plate at the bottom, and a weight is attached to prevent falling over. In addition, there is also proposed a structure in which a plurality of vertical ridges are provided at predetermined intervals on the outer peripheral portion of the cone so that the cone does not fall over even if a strong wind blows (registered utility model No. 3020520).

[0003]

Although these conventional cones are formed so as not to easily fall down due to strong winds, etc., they may be hit or fallen down by a vehicle traveling on a road. There were many. In order to prevent this, the cone itself is colored red, and a light emitting device is incorporated to draw the driver's attention.
Even so, there was a fall accident due to the vehicle.

If such a safety sign cone is left falling or spattered and left as it is, the indication that it is under construction or the position of course change will be insufficient, and the vehicle will be displayed on the construction site. There is a risk of plunging and causing personal injury. Therefore, the present invention is to promptly detect troubles such as falls and movements of this type of safety sign, and immediately restore the signs that have fallen, moved, etc., so that safety at the construction site can be ensured. I am trying.

[0005]

In order to solve the above problems, the present invention has the following constitution. That is, the safety display device according to the present invention is a safety display device used for road construction and the like, and is composed of a main body installed on the ground and an alarm device installed at a position apart from the main body. The main body is provided with a transmitting device having a sensor for detecting the vibration of the main body and a transmitting unit for transmitting a vibration detection signal of the sensor, and the notification device is provided with a transmitting device from the transmitting device of the main body. It is characterized in that a receiving device is provided for receiving a signal and notifying that an abnormality has occurred in the main body.

The transmitting device includes a vibration sensor for detecting vibration of the main body, and an ID based on a detection signal of the vibration sensor.
An ID signal generator for generating a signal and a transmitter for transmitting the generated ID signal are provided, and a receiver receives a ID signal from a transmitter and an ID signal for decoding the received ID signal. A decoder, a memory recording a message for notification, and a selector for selecting the message based on the decoded ID signal are provided, and the message selected by the selector is notified by the notification unit. It is preferable to keep it. It is preferable that the message be notified by voice.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below. FIG. 1 exemplifies a security display device according to the present invention. The security display device 1 includes a display device main body 2 installed on the road, a transmitting device 3 housed in the main body, and a predetermined place. And an informing device 4 provided in the.

The display device main body 2 is a conical color cone colored red and is made of rubber, plastic or the like. The cone 2 which is the main body of the display device is a hollow body, and a flange-shaped bottom plate 5 is attached to the bottom thereof. The bottom of the cone is open so that other cones can be inserted into this part and stacked compactly.

A transmitting device 3 is attached to the side portion of the cone 2 which is the main body. This transmitting device 3 is thin and is attached in a state in which it is fitted in the thick portion of the cone so as not to disturb the overlapping of the cones. Transmitter 3
As shown in FIG. 2, a vibration sensor 11 as a sensor for detecting vibrations that may cause a fall, a collision, etc., an ID signal generator 12, a transmission unit 13, a power supply unit (battery) 14, and an antenna 15 are provided. There is. As the vibration sensor 11, for example, a piezoelectric element such as a ceramic vibrator can be used. This piezoelectric element generates a voltage when mechanical pressure or vibration is applied. A condenser microphone or the like can be used as another vibration sensor. The condenser microphone obtains an electric output by using vibration as sound pressure. In any case, it is sufficient that the main body 2 can obtain an electric output when it is hit or vibrated by a certain amount or more.

The ID signal generator is used to identify the main body (cone) 2 to which the transmitter is attached from a plurality of main bodies 2, ...
When the vibration sensor detects a trouble with the D symbol (identification symbol), it outputs an ID signal (identification signal) for identifying the main body in which the vibration sensor is provided. This ID signal is wirelessly transmitted from the transmitter 13. If only one or a small number of main bodies (cones) 2 are used, only one type of ID signal is required. In addition,
A normal battery or a storage battery is used as a power source of the transmitter, but a solar battery can be used without using these. In this case, a solar cell is attached to a part of the surface of the cone, and the electricity generated is attached to the cone (for example, a power storage device using a known electric double layer capacitor).
It should be charged and used.

The alarm device 4 is installed in a place where workers and managers are present, for example, a work site where construction is actually performed, a construction management office, or the like. The notification device 4 includes a receiving device, and as shown in FIG.
1, a reception unit 22, an ID signal decoder 23, a power supply unit 24, a selector 25, a display unit 26 and the like. The ID signal decoder 23 decodes which main body (cone) has a trouble based on the received ID signal. Further, the selector 25 selects a message corresponding to the decoded ID signal and outputs the message signal to the display unit 26. The content of the message is, for example, “nth
There was a problem with the second cone. ”This message is written in the IC memory in advance. In the illustrated example, the display unit 26 is composed of a voice amplifier 27 and a speaker 28, and notifies the selected message by voice.
This message may be displayed by a visual notification means such as an alarm lamp or a display.

The security display device 1 is a cone 2 which is a main body on a road before a road construction site, a place where a road is changed, or the like.
Is installed and used for notification of construction work. It is preferable that the cone itself is colored in a conspicuous color such as red and the light emitting device is used to perform light emission display at night. In addition, it is convenient to use the power source of the transmitter as the power source for this light emission. It is also possible to attach a weight or the like so that the cone does not easily fall, but in the present invention, since the transmitter 3 is built in the cone, it also has a function as a part of the weight. .

When a vehicle traveling on a road comes into contact with or collides with the main body 2, the vibration sensor 11 of the transmitter 3 detects the vibration and outputs it as an electric signal. This electric signal is input to the ID signal generator to identify the main body 2 I
It is converted into a D signal and the ID signal is transmitted wirelessly.

When this signal is received by the receiving section of the notification device 4, the ID signal decoder 23 decodes the ID signal, and a message corresponding to the content is selected and notified. In the illustrated example, since the message is notified by voice from the speaker, it is possible to know the occurrence of trouble even during work. When this display is performed by a visual display means, the display is often unnoticed. Therefore, it is preferable to give an alarm by voice or bell before or during the display. At a noisy site, only the voice may be heard, so that the sound and the visual display are used to increase the safety.

Since this security display device can immediately know which one of the plurality of cones arranged on the road or the like has a trouble, for example, a cone that has fallen or is splashed can be quickly restored. it can. Therefore, the safety is high even when performing construction on the road. In addition,
In the above example, only the cone having the trouble was notified, but since the magnitude of the impact can be detected by the vibration sensor, the magnitude of the impact received by the cone is displayed in several stages. You may do it.

In the above example, a known cone is used as an example of the display device main body 2, but various security display means such as a doll or an animal-shaped sign may be used. it can. Further, in the illustrated example, since the wireless transmission / reception is possible, a cord or the like can be easily used even in a remote place, but in some cases, wired transmission / reception may be performed.

[0017]

As described above, in the safety display device according to the present invention, as in the conventional case, a large number of display device bodies (cones, etc.) are arranged side by side at appropriate positions on the road, and are under construction. It is possible to inform the driver of the car of such a thing. Moreover, even when a trouble such as a fall or a movement occurs due to a contact or collision of a vehicle or the like, the trouble can be immediately known, and it is possible to quickly recover and ensure safety.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a configuration example of a security display device of the present invention (a)
It is an external view (b) of a cone.

FIG. 2 is a block diagram showing the configuration of the transmitting device.

FIG. 3 is a block diagram showing a configuration of a notification device.

[Explanation of symbols]

1 Security display device 2 body (cone) 3 transmitter 4 Notification device 11 Vibration sensor 12 ID signal generator 13 Transmitter 22 Receiver 23 ID signal decoder 25 selector

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2D064 AA01 AA21 CA02 EA13 FA05                       GA02                 2D101 CA11 CB07 EA07 FA12 GA26                       GA32                 5C086 AA49 BA30 CA06 CA23 CB26                       CB27 DA14 EA41 EA45 FA06                       FA12

Claims (3)

[Claims] 1. A safety display device used for road construction and the like, comprising a main body installed on the ground and an alarm device installed at a position distant from the main body. A transmitter having a sensor for detecting vibration of the main body and a transmitter for transmitting a vibration detection signal of the sensor is attached, and the notification device receives a signal from the transmitter of the main body, A security display device comprising a receiving device for informing that an abnormality has occurred in the main body. 2. The transmitter includes a vibration sensor for detecting vibration of the main body, an ID signal generator for generating an ID signal based on a detection signal of the vibration sensor, and a transmitter for transmitting the generated ID signal. The receiving device is provided with a receiving unit for receiving the ID signal from the transmitting device, an ID signal decoder for decoding the received ID signal, a memory for recording a notification message, and the decoded ID signal. The security display device according to claim 1, further comprising: a selector that selects the message based on the message, and the message selected by the selector is notified by the notification unit. 3. The security display device according to claim 1, wherein the notification unit is configured to notify the message by voice.