JP3033405B2 - Wireless information transmission type beacon receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless information transmission type signage system for wirelessly transmitting information about a road sign to a vehicle and transmitting the information to a driver through a vehicle-mounted device.

[0002]

2. Description of the Related Art Conventionally, a driver visually recognizes a road sign installed at a road edge or the like, for example, a road sign indicating maximum speed, parking, stop prohibition, etc., and travels at a traveling speed based on the recognition. And in areas where parking and stopping is prohibited,
They try to avoid parking and stopping. Such road signs have a shape that is easy for a driver or the like to recognize, and are installed by selecting a place without obstruction that blocks the view.

[0003]

In such a conventional example, it is necessary to install a road sign in a place where there is no obstacle in running the vehicle, and it is necessary to cut down troublesome branches and leaves such as a standing tree which obstructs the view. . Also, while traveling at an intersection where a number of road signs are installed, the road signs may be overlooked. Further, there is a disadvantage that the road sign at the passing point cannot be reconfirmed during traveling.

The present invention has been made to solve the above-mentioned conventional problems, and it is possible to reliably confirm a road sign at a point to be recognized without obstructing a vehicle and to easily identify a road sign at a point where the vehicle has passed. An object of the present invention is to provide an excellent wireless information transmission type beacon system that can be confirmed again.

[0005]

In order to achieve the above object, a radio information transmission type signage system according to the present invention comprises: road sign information in which a road sign is associated with a numeral; and an effective distance section of the road sign information. A road sign information transmitting device that transmits a sign effective distance information indicating a radio wave from a road sign information transmitting device, and a radio wave from the road sign information transmitting device that is mounted on the vehicle and in which a sign is valid based on unit distance traveling. And a road sign information receiving device for displaying the road sign information obtained by reception.

[0006] In this configuration, the road sign information transmitting section stores in advance a plurality of types of road sign information classified by time zone, and stores the stored road sign information and a valid distance section of the road sign information. An information generating unit that transmits a high-frequency signal modulated with the indicated sign effective distance information through a communication line; and an information transmitting unit that transmits a high-frequency signal supplied through the communication line to a traveling vehicle by radio waves. Configuration.

[0007] The road sign information receiving section mounted on the vehicle includes an information receiving section for outputting a reception signal that is the road sign information having received the radio wave and the sign effective distance information, and the vehicle on which the device is mounted travels. A distance information receiving unit that outputs a unit distance traveling signal for each traveling of a certain distance, and a storage unit that stores a received signal from the information receiving unit for a plurality of sections in which road sign information and sign effective distance information change. And an operation unit for instructing display of past road sign information and sign effective distance information stored in the storage unit, road sign information and sign effective distance information, and processing information based on the unit distance traveling signal, It is configured to include a processing unit that outputs while the vehicle travels the section distance where the sign is valid, and a transmission unit that displays and transmits processing information from the processing unit.

[0008]

With such a configuration, the wireless information transmission type sign system of the present invention transmits the road sign information and the sign effective distance information indicating the effective distance section of the road sign information by radio waves. Further, the road sign information receiving device mounted on the vehicle stores the road sign information obtained by receiving the radio wave from the road sign information transmitting device in the distance section where the sign is valid based on the unit distance traveling. In addition, the sign is displayed in a valid distance section and transmitted to the driver.
Further, the display is performed again. Therefore, the road sign can be surely confirmed at a point to be recognized without any obstacle in vehicle running, and the road sign at the point where the vehicle has passed can be easily reconfirmed.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a wireless information transmission type beacon system according to the present invention;

FIG. 1 is a block diagram showing an electrical configuration of an embodiment of a wireless information transmission type beacon system according to the present invention. In FIG. 1, this example includes a road sign information transmitting unit A,
The road sign information and the sign effective distance information which are mounted on the car and wirelessly transmitted from the sign information transmitting unit A, and a distance section where the sign is valid based on the unit distance travel, for example, 4
During Km, the received road sign information, for example, the maximum speed 5
A road sign information receiving unit B that displays 0 km and transmits the information to the driving vehicle is generally configured.

The road sign information transmitting unit A stores in advance road sign information in which a plurality of types of road signs classified according to time zones correspond to numerals, for example, road sign information having a maximum speed of 50 km, and stores the stored road sign information. Information generating section 1 for transmitting, through a cable F, information and a high-frequency signal modulated with sign effective distance information indicating an effective distance section of road sign information.
And an information transmitting unit 2 connected to the information generating unit 1 by a cable F and transmitting a high-frequency signal supplied through the cable F, that is, road sign information and sign effective distance information to a traveling vehicle by radio waves W. doing.

An information creating unit 1 stores in advance road sign information in which all kinds of road signs are associated with numerals, and sends out information on road sign information and sign valid distance information described below; It has a modulator 1b and a carrier output unit 1c for modulating and outputting a carrier with the road sign information and the sign effective distance information from the information sending unit 1a.

The road sign information receiving section B receives a reception signal while traveling on the radio wave W transmitted from the information transmitting section 2,
That is, the information receiving unit 3 that outputs the road sign information and the sign effective distance information, and a unit distance traveling signal for every traveling of a predetermined unit distance from a certain distance, for example, rotation of a wheel, in which an automobile equipped with the device travels, And a distance information receiving section 4 for outputting. Further, an operation unit 5 installed in a place where the driver can easily operate and instructing to display past road sign information and sign effective distance information again, and an information receiving unit 3
Based on the road sign information and the sign effective distance information, which are the signals received from the vehicle, and the unit distance traveling signal from the distance information receiving unit 4, while the vehicle 12 travels in the distance section where the sign is valid, for example, the traveling distance is 4 km. And a processing unit 6 that outputs road sign information, for example, processing information at a maximum speed of 50 km. The road sign information receiving unit B stores a signal received from the information receiving unit 3, that is, road sign information and sign effective distance information for several sections obtained by the traveling of the automobile 12. And a transmission unit 8 for displaying road sign information, which is processing information from the processing unit 6, on a color LCD display or the like and transmitting the information to the driver.

FIG. 2 is a perspective view showing the actual arrangement of the road sign information transmitting section A and the road sign information receiving section B. In FIG. 2, an information creating unit 1 is installed at a road end, and an information transmitting unit 2 is attached to an upper part of a support provided at a road end by a cable F. Also, a car 1 traveling on this road
2, an information receiving unit 3 is provided on a hood or the like corresponding to the height of the information transmitting unit 2. Further, the distance information receiving section 4 detects rotation of the wheels and the like, and outputs a unit distance traveling signal every time the vehicle travels a predetermined unit distance. Further, an operation unit 5 and a transmission unit 8 are provided in the driver's seat.
A processing unit 6 and a storage unit 7 connected by cables are provided between the information receiving unit 3 and the distance information receiving unit 4, for example, below the front seat.

Next, the operation of the configuration of this embodiment will be described. 1 and 2, road sign information is stored in advance in an information creating unit 1 in a road sign information transmitting unit A. This road sign information is information in which all kinds of road signs classified according to the time zone correspond to numbers. The information creator 1 includes one or more of road sign information, one or more road sign information to be provided at the transmission point here, and sign effective distance information indicating an effective distance section of the provided road sign information. And send it out. With the two road sign information and the sign effective distance information, the carrier is modulated through the modulator 1b and the carrier output 1c, and transmitted to the information transmitter 2. The information transmitting unit 2 transmits the radio wave W within a certain range on the road.
And a high-frequency signal from the information creating unit 1 is transmitted as a radio wave W. When the automobile 12 travels within the radiation pattern of the radio wave W, the information receiving unit 3 in the road sign information receiving unit B receives the radio wave W transmitted from the information transmitting unit 2 and processes the received signal. Output to the unit 6. At the same time, the distance information receiving unit 4 detects the rotation of the wheels and sends a unit distance traveling signal to the processing unit 6 every time the vehicle travels a predetermined unit distance. The processing unit 6 allows the vehicle 12 to travel the effective distance of the sign based on the signal received from the information receiving unit 3, that is, the road sign information and the effective sign distance information, and the data and the unit distance traveling signal from the distance information receiving unit 4. The traffic sign information, for example, during a travel distance section of 4 km,
For example, the processing information at the maximum speed of 50 km is transmitted to the transmission unit 8 to be displayed on the screen and transmitted to the driver. The storage unit 7 stores a reception signal from the information reception unit 3, that is, road sign information and sign effective distance information for several sections in which the automobile 12 travels. The stored road sign information and sign effective distance information are read out by the driver operating the operation unit 5 and displayed on the screen by the transmission unit 8. That is, when the driver has overlooked or when the road sign is checked again, it can be easily performed.

In this case, the road sign information transmitting section A can transmit a plurality of types of road signs by radio waves W at one point. For example, one road sign information transmitting unit A can be installed at a place other than the road edge, and at the same time, it is possible to display the maximum speed and simultaneously transmit sign information such as parking, stop regulation, and no overtaking to the driver. There is an advantage that it is hard to become a traffic obstacle as an installed object. Further, since the information transmitting unit 2 in the road sign information transmitting unit A transmits the traffic sign information before reaching the intersection and provides the driver with the road sign information, the number of objects installed near the intersection can be reduced. In addition, since the sign transmits the effective distance section to the driver, regardless of the position of the sign, it can be installed in front of the sign, for example, at a point at an arbitrary distance from the intersection where the sign is installed The sign information can be safely and easily transmitted to the driver.

[0017]

As is apparent from the above description, the radio information transmission type signage system of the present invention transmits, by radio waves, road sign information and sign effective distance information indicating an effective distance section of the road sign information. Further, in the road sign information receiving device mounted on the vehicle, the road sign information obtained by receiving the radio wave from the road sign information transmitting device in the distance section where the sign is valid based on the unit distance travel is obtained. And the sign is displayed in the valid distance section and transmitted to the driver and displayed again, so that the road sign has no obstruction to the vehicle running and is surely confirmed at the point to be recognized This has the effect that the road sign at the point where the vehicle has passed can be easily reconfirmed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electrical configuration of a wireless information transmission type beacon system according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an actual arrangement of a road sign information transmitting unit and a road sign information receiving unit shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Information creation part 2 Information transmission part 3 Information reception part 4 Distance information reception part 5 Operation part 6 Processing part 7 Storage part 8 Transmission part A Road sign information transmission part B Road sign information reception part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G08G 1/09 H04B 7/26

Claims (1)

(57) [Claims] 1. A road sign information transmitting device for transmitting by radio waves.
Is installed on the vehicle and a sign is
In the effective distance section, from the above road sign information transmission device
To display road sign information obtained by receiving radio waves
Wireless information transmission type beacon device comprising road sign information receiving device
In the road sign information receiving unit mounted on the vehicle ,
There road sign information receiving apparatus, the travel of a predetermined distance when an information receiving unit for outputting a received signal is a road sign information and sign effective distance information received radio wave, is the vehicle equipped with the device travels A distance information receiving unit that outputs a unit distance traveling signal for each unit, a storage unit that stores a reception signal from the information receiving unit for a plurality of sections in which road sign information and sign effective distance information change, an operation unit for instructing the display of the stored past road sign information and sign effective distance information, and the road sign information and sign effective distance information, the processing information based on the unit distance travel signal, the <br / > A wireless information transmission type sign receiving device comprising: a processing unit for outputting while the vehicle travels a section distance in which the sign is valid; and a transmitting unit for displaying and transmitting processing information from the processing unit. equipment