JP2013087419A - Sign device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sign device that can be arranged at a tapered place of traffic restriction or a traffic accident occurrence place so that an upstream-side traveling vehicle is gently guided to a desired lane speedily and safely.SOLUTION: The sign device includes a warming indication surface 3 for traveling vehicles, driving wheels 2, driving means 11 for the driving wheels 2, and control means 12 of controlling the operation of the driving means 11 on the basis of relative position data on a reference sign 4 placed at a base point, and travels by itself to a predetermined position under the control of the driving means 11 controlled by the control means 12. The reference sign 4 is placed at both end positions of an installation section, a sensor 13 is connected to the control means 12, and the control means 12 may be configured to obtain relative position data on the basis of detection data of the sensor 13. Further, the control means 12 may be configured to obtain the relative position data for the reference sign on the basis of a sound wave or electric wave transmitted from the reference sign 4 or absolute position data obtained from a GPS receiver.

Description

  The present invention relates to a sign device used to guide a traveling vehicle to a desired lane in a taper portion of road regulation or a traffic accident occurrence site.

  In traffic regulation for carrying out construction work such as road repair on a road, a sign for indicating prohibition of entry into a work area is used for a traveling vehicle. This sign is usually temporarily placed in a place that is a traveling road. When the work area extends from several hundred meters to several kilometers, a large number of signs are arranged at predetermined intervals. There is a need. Therefore, various methods and apparatuses have been proposed for efficiently and safely arranging a sign indicating prohibition of entry into the work area. For example, Japanese Patent Laid-Open No. 2001-73324 includes a chute for sliding a sign from a holding shelf to the road surface sequentially as the sign setting vehicle travels, and each sign slides on the road surface via the chute. In conjunction with this, there is disclosed a sign placing device provided with a gas supply means for switching the display unit from the storage position to the display position. In this sign placing device, a plurality of traffic control signs provided with a display unit on a weight-bearing seating board are also held in which the seating boards are aligned and held in a storage posture in which the display part is flat. It is possible to reduce the size of the vehicle on which the sign is installed, and to install the sign on the road surface with a stable display posture.

JP 2001-73324 A

  A traffic regulation sign may be temporarily temporarily installed on the uppermost stream side of the work area by hand before a large sign with high visibility is installed. In addition, when the work is completed in a short period of time, only a small sign may be manually installed. However, when a small sign is manually installed, it must be installed across the road while looking at the clearance of the traveling vehicle. On the other hand, in order to avoid a sudden steering operation by the traveling vehicle, the upstream traveling vehicle Must be arranged so as to be gently guided to the side lane of the work area. And this arrangement | positioning operation | work which must also confirm the position of a sign, confirming a traveling vehicle is a danger.

  In addition, the sign indicating prohibition of invasion to the traveling vehicle is not limited to the construction work, and is also installed at the site of the traffic accident. In this case, in order to prevent the following vehicle from colliding with the accident vehicle, a sign indicating the presence of the accident vehicle is arranged. However, it is necessary to install a sign as soon as possible after the accident at the traffic accident occurrence site. Therefore, there is no time to carry in the installation equipment. Therefore, in an actual accident occurrence site, a worker who performs necessary processing work crosses the road while looking for a gap between traveling vehicles and installs a smoke cylinder as a sign. This work is also dangerous, as is the traffic regulation sign.

  SUMMARY OF THE INVENTION Accordingly, the present invention is to provide a sign device that can be arranged so that an upstream traveling vehicle is gently guided to a desired lane quickly and safely at a taper portion of road regulation or a traffic accident occurrence site.

  The sign device according to the present invention controls the operation of the driving means based on the warning display surface for the traveling vehicle, the driving wheel, the driving means of the driving wheel, and the relative position data with respect to the reference sign arranged at the base point. Control means, and self-runs to a predetermined position by the control of the driving means by the control means.

  The reference mark may be arranged at both end positions of an installation section, a sensor is connected to the control means, and the control means may obtain the relative position data based on detection data of the sensor.

  The reference sign is provided with a sound wave or electromagnetic wave transmitter and is disposed at both end positions of an installation section, the sound wave or electromagnetic wave receiver is connected to the control means, and the control means receives the sound wave received by the receiver. Alternatively, the relative position data may be obtained based on the electromagnetic wave.

  The reference sign includes a GPS receiver and wireless communication means, and the control means obtains absolute position data of the reference sign by the GPS receiver by wireless communication with the reference sign, and is connected to its own station. The relative position data may be obtained by comparing the position data with the absolute position data. GPS is a global positioning system (global positioning system).

  A receiver of sound waves or electromagnetic waves transmitted from a remote controller is connected to the control means, and the control means specifies the position of the remote controller based on the sound waves or electromagnetic waves transmitted from the remote controller, It may be self-propelled to the position of the remote controller.

  The warning sign part may be a flat high-luminance light emitter that emits light toward the side. In the present invention, the term “flat” refers to a flat shape, that is, a dimension for specifying the size of the bottom surface, specifically, a diameter for a cylinder, a height for a side or a diagonal line for a prism. Is to be small. Therefore, for example, the hemisphere is flat with respect to the diameter of the circular bottom surface, and is thus flat. In addition, emitting light toward the side means that the direction in which light is emitted is not only in the vertical direction, and when light is emitted in the horizontal direction or obliquely upward between the horizontal direction and the vertical direction, Assume that light is emitted toward the side.

  In the sign device of the present invention, the driving means is controlled based on the relative position data with respect to the reference sign placed at the base point, and the worker who installs the sign places the reference sign at the base point. It is possible to arrange at a predetermined position, that is, an arrangement in which the upstream traveling vehicle is gently guided to a desired lane by a simple operation. Moreover, since it is self-propelled at a predetermined position, it is not necessary to separately use a device for installation, and setting work and adjustment operations at the site are not required, and quick installation is possible.

  As a method for obtaining the relative position data with respect to the reference sign, a sensor may be connected to the control means, and the relative position data may be obtained based on the detection data of the sensor. At this time, since it is necessary to specify the section in which the marking device is installed in order to arrange the upstream traveling vehicle to be gently guided to the desired lane, the reference signs are arranged at both end positions of the installation section. Although there is no restriction | limiting in the sensor to be used, an ultrasonic sensor and an electromagnetic wave sensor are suitable.

  In addition, it is good also as providing the reference | standard label | marker arrange | positioned at the both ends of an installation area with the transmitter of a sound wave or electromagnetic waves, and connecting these sound wave or electromagnetic wave receivers to a control means. In this case, the control means obtains the relative position data based on the sound wave or electromagnetic wave received by the receiver.

  As another method for obtaining the relative position data with respect to the reference sign, GPS (Global Positioning System) may be used. In this case, a GPS receiver and wireless communication means are mounted on the reference sign. Then, the control means obtains the absolute position data by the GPS receiver of the reference sign by wireless communication with the reference sign, and obtains the relative position data by comparing the position data of the GPS receiver connected to the own station and the absolute position data. Can be obtained.

  Also, if the position of the remote controller is specified based on the sound wave or electromagnetic wave transmitted from the remote controller and it is assumed that it will run to the remote controller position, it will automatically move from the installation position to the withdrawal position when the accident processing is completed. It can be run and quickly and easily removed. At this time, it is assumed that the remote controller transmits a sound wave or an electromagnetic wave according to a method in which the control unit of the marker device obtains relative position data with respect to the reference marker. For example, as long as relative position data is obtained based on sound waves or electromagnetic waves transmitted from a reference sign, the same sound waves or electromagnetic waves transmitted from the reference sign may be used. In this case, since the travel destination point of the sign device is a specific point, it is not necessary to transmit from the two points. In addition, if the relative position data is obtained based on the absolute position data by the GPS receiver of the reference sign, the remote controller also includes the GPS receiver, and the sound wave or electromagnetic wave transmitted from the remote controller is transmitted to the absolute position of the remote controller. A signal including data may be used.

  The warning sign section needs to have high visibility from the traveling vehicle and does not significantly reduce the traveling performance of the sign device itself.For example, a flat high-luminance illuminant that emits light to the side is suitable. is there. In this case, the visibility is high due to the light emitted toward the side, and since the flatness is flat, the center of gravity of the marking device is low and stable running is possible. Moreover, the strength that can sufficiently withstand the load when the traveling vehicle gets on by mistake can be provided.

Embodiment of the marker apparatus which concerns on this invention is shown, (a) is a front view, (b) is a top view. It is a functional block diagram of the marker device. It is a figure which shows the state in which the said marker apparatus is installed from the sky side of a road. (A) which shows other embodiment of the marker apparatus which concerns on this invention is a front view, (b) is a top view.

An embodiment of a marking device according to the present invention will be described with reference to FIGS.
As shown in FIG. 1, the marking device 10 has a main body portion 1 having a shape in which a rectangular parallelepiped having a square bottom surface is flattened, and a drive wheel 2 is attached to the lower bottom surface of the main body portion 1. The drive wheel 2 is attached to the drive means 11 via the axle and is driven by the drive means 11. The drive means 11 may be any means that can drive the drive wheels 2, and a known electric motor can be used. In this embodiment, four drive means 11 are provided for the four drive wheels 2, each of the drive wheels 2 is driven independently, and its direction can be changed independently. However, two wheels may be fixed to the same axle, and two drive wheels 2 may be driven simultaneously by one drive means 11.

  On the upper bottom surface of the main body 1, a high-intensity illuminant formed by arranging a plurality of high-intensity LEDs is attached as a warning indicator 3. The high-intensity LED is arranged such that the optical axis is horizontal, the side surface of the warning sign unit 3 emits light, and can be viewed from the traveling vehicle. The housing enclosing the high-intensity LED and the power source is also shaped like a rectangular parallelepiped with a flat bottom, like the main body 1. And the height from the grounding part of the drive wheel 2 to the upper surface of the warning sign part 3 is about 10 cm. In addition, the length of the one side in the bottom face of the main-body part 1 and the warning marking part 3 is about 20 cm.

  The main body 1 is equipped with a microcomputer as the control means 12 of the drive means 11. The control means 12 includes a data storage unit 15 and stores the installation position data of the own station as a relative position with respect to the reference mark 4 arranged at the installation base point. A wireless communication means (not shown) is connected to the control means 12, and a remote switching operation is performed using a remote controller (not shown).

  The main body 1 also has an ultrasonic sensor 13 and is connected to the control means 12. The ultrasonic sensor 13 measures the distance from the reference marker 4, calculates relative position data 14 with respect to the reference marker 4, and passes the data to the control means 12. A known sensor is used.

  Upon receiving the relative position data 14 from the ultrasonic sensor 13, the control means 12 compares this with the installation position data stored in the data storage unit 15, and within a predetermined allowable range (with respect to the XY coordinate value- 10 cm to about +10 cm), a control signal 16 for instructing stoppage is sent to the driving means 11. On the other hand, if the difference between the relative position data 14 and the installation position data is not within the allowable range, the direction in which the vehicle should travel is calculated from the difference, and a control signal 16 designating the angle of the drive wheels 2 is sent to the drive means 11. . The driving means 11 operates based on the control signal 16 and stops the driving wheel 2 if it is instructed to stop, and if it specifies the angle of the driving wheel 2, the driving means 2 Continue driving after changing the angle. The permissible range of the stop position is not limited as long as chattering (continuation of fine movement) can be prevented, and may be set as appropriate in consideration of the performance of the drive means 11 and the drive wheels 2.

  The reference sign 4 has the same appearance as the sign device 10 and has a warning display part 3 on the upper bottom surface of the main body part 1. However, since there is no need for self-propelled driving, the driving wheel 2 is not provided, and the driving means 11, the control means 12, and the ultrasonic sensor 13 are not provided in the main body 1.

Next, a method for installing the marking device 10 will be described.
First, in the upstream region of the accident vehicle 20, it is necessary to specify a section where the sign device 10 is to be installed, so the reference signs 4 are arranged at both ends of the section where the sign device 10 is installed. In addition, a predetermined number of marking devices 10 are arranged on the roadside belt toward the installation position. In this embodiment, five labeling devices 10 are arranged.

  When the arrangement work of the reference mark 4 and the five mark devices 10 is completed (the state shown in FIG. 3A), an installation instruction signal is transmitted using the remote controller. All the labeling apparatuses 10 that have received the installation instruction signal travel to the installation position while grasping the relative position of the own station with respect to the reference sign 4 by the ultrasonic sensor 13. And each marker apparatus 10 stops at a predetermined installation position, and the installation is completed (the state shown in FIG. 3B).

  In addition, there is no restriction | limiting in the detection method of the reference | standard label | marker 4 by a sensor, You may employ | adopt the detection method using electromagnetic waves instead of an ultrasonic wave. In this case, an electromagnetic wave sensor may be provided instead of the ultrasonic sensor 13. Moreover, it is good also as what transmits a sound wave or electromagnetic waves from the reference | standard label | marker 4, and obtains the relative position data with respect to the reference | standard label | marker 4 based on them. In this case, the reference sign 4 is provided with a sound wave or electromagnetic wave transmitter, and the sign device 10 is provided with a sound wave or electromagnetic wave receiver transmitted from the reference mark 4 in place of the ultrasonic sensor 13. To do.

  Furthermore, instead of the ultrasonic sensor 13, a GPS receiver may be connected to the control means 12. In this case, a GPS receiver and wireless communication means are mounted on the reference sign 4. Then, the control means 12 obtains absolute position data by the GPS receiver of the reference sign 4 by wireless communication with the reference sign 4, and compares the position data of the GPS receiver connected to the own station with the absolute position data. The position data shall be obtained. Note that the obtained relative position data is stored in the data storage unit 15. The operation after obtaining the relative position data is the same as described above.

  Furthermore, when a method of obtaining relative position data with respect to the reference sign 4 based on the sound wave or electromagnetic wave transmitted from the reference sign 4 or the absolute position data by the GPS receiver, the remote controller is similar to the reference sign 4. It is possible to withdraw all at once by giving the function. For example, when a method of obtaining relative position data with respect to the reference mark 4 based on a sound wave or electromagnetic wave transmitted from the reference mark 4 is used, the same sound wave or electromagnetic wave is transmitted from the remote controller. On the other hand, the control means 12 of the marking device 10 identifies the position of the remote controller based on the sound wave or electromagnetic wave transmitted from the remote contra, and is programmed to travel to the position of the remote controller. Then, after the accident handling work is completed, an instruction signal for simultaneous withdrawal is transmitted from the remote controller, and thereafter, transmission of sound waves or electromagnetic waves is continued. Upon receiving the simultaneous withdrawal instruction signal, the marking device 10 identifies the position of the remote controller based on the sound wave or electromagnetic wave transmitted from the remote controller, and self-travels to the position of the remote controller. It can be withdrawn at the same time at the controller.

  In addition, when the system which acquires the relative position data with respect to the reference | standard mark 4 based on the absolute position data by a GPS receiver is employ | adopted, the GPS receiver is also mounted in the remote controller. The control means 12 of the sign device 10 is programmed to identify the position of the remote controller based on the absolute position data from the GPS receiver transmitted from the remote contra and to travel to the position of the remote controller. Then, after the accident handling work is completed, an instruction signal for simultaneous withdrawal and absolute position data from the GPS receiver are transmitted from the remote controller. The sign device 10 that has received the simultaneous withdrawal instruction signal specifies the position of the remote controller based on the absolute position data transmitted from the remote controller, and self-travels to the position of the remote controller. It can be withdrawn at the same time at the controller.

  The reference mark 4 may be provided with a self-propelled function, that is, provided with the drive means 11 and the drive wheel 2. In that case, when there is an instruction for simultaneous withdrawal from the remote controller, by specifying the position of the remote controller based on the sound wave or electromagnetic wave transmitted from the remote controller, by programming to travel to the position of the remote controller, It becomes possible to withdraw together with the labeling device 10.

  The warning display unit 3 is not limited in its shape or light source as long as it is highly visible from the traveling vehicle and does not significantly reduce the traveling property of the sign device 10 itself. FIG. 4 shows an embodiment in which the shape of the warning display unit 3 is changed. In FIG. 4, parts that are substantially the same as those of the embodiment shown in FIGS.

  The warning display unit 31 of the signage device 30 shown in FIG. 4 has a dome shape made of reinforced plastic, and a high-intensity lamp is arranged inside so that the entire surface is brightly illuminated from the inside. Further, the main body 1 has a circular bottom surface in accordance with the shape of the bottom surface of the warning display unit 31. Thus, by making the warning display part 31 into a dome shape, visibility is high and load bearing performance can be improved.

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Drive wheel 3, 31 Warning label | marker part 4 Reference | standard label | markers 10, 30 Marking apparatus 11 Drive means 12 Control means 13 Ultrasonic sensor 14 Relative position data 15 Data storage part 16 Control signal 20 Accident vehicle

Claims (6)

  A warning display unit for a traveling vehicle; drive wheels; drive means for the drive wheels; and control means for controlling the operation of the drive means based on relative position data with respect to a reference sign arranged at a base point. The sign device is self-propelled to a predetermined position under the control of the driving means by means.   The sign apparatus according to claim 1, wherein the reference sign is arranged at both end positions of an installation section, a sensor is connected to the control means, and the control means obtains the relative position data based on detection data of the sensor.   The reference sign is provided with a sound wave or electromagnetic wave transmitter and is disposed at both end positions of an installation section, the sound wave or electromagnetic wave receiver is connected to the control means, and the control means receives the sound wave received by the receiver. The labeling device according to claim 1, wherein the relative position data is obtained based on the electromagnetic wave.   The reference sign includes a GPS receiver and wireless communication means, and the control means obtains absolute position data of the reference sign by the GPS receiver by wireless communication with the reference sign, and is connected to its own station. The marking device according to claim 1, wherein the relative position data is obtained by comparing the position data of a receiver and the absolute position data.   A receiver of sound waves or electromagnetic waves transmitted from a remote controller is connected to the control means, and the control means specifies the position of the remote controller based on the sound waves or electromagnetic waves transmitted from the remote controller, The marking device according to claim 1, 2, 3 or 4, which self-propels to the position of the remote controller. The sign device according to claim 1, 2, 3, 4 or 5, wherein the warning sign is a flat high-luminance illuminant that emits light to the side.

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