JPH0729098A - Device for collecting road congestion information - Google Patents

Abstract

PURPOSE:To enable a vehicle driver to grasp road congestion information in realtime by momently transmitting a vehicle position speed information signal from multiple road running vehicles which are distributed in a wide range without biasing and always making road congestion information latest data. CONSTITUTION:The multiple running vehicles which are distributed in a wide range with comparatively a little biasing in terms of an area are provided with a speed sensor, an autonomous car navigation device 1 being a vehicle position detecting device and radio transmitter/receivers 6 and 7. In a base station, radio transmitter/receivers 11 and 19 and an information analysis congestion map conversion circuit 15 being an information processor are provided. Then, speed information and vehicle position information transmitted from the vehicle are statistically calculated and processed by the information processor 15. Thus, road congestion information can be collected in realtime with high precision without the necessity of specially installing a television camera, a vehicle sensor and another vehicle position detecting device on a road.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road congestion information collecting device, and more particularly to a television camera, a vehicle sensor, etc. on a road by statistically processing speed information and vehicle position information wirelessly transmitted from a vehicle at a base. The present invention relates to a road congestion information collecting device that collects road congestion information with high accuracy without the need to install the vehicle position detecting device.

[0002]

2. Description of the Related Art As a conventional example of a road congestion information collecting device, there is a device in which a large number of television cameras are dispersedly installed on a road to monitor a vehicle. Then, there is a system in which a large number of vehicle detection devices are dispersedly installed on a road and the number of vehicles passing through each vehicle detection device per unit time is counted.

There is also a system in which a traffic congestion investigation vehicle is run and wirelessly transmits road congestion information from the vehicle to the base. Further, there is also one that collects road congestion information by a helicopter and wirelessly transmits this to a base.

[0004]

As described above, the conventional road congestion information collecting device has to be equipped with a facility for grasping the road congestion information on the road or on the ground in some sense. . In order to make the road traffic congestion information highly accurate, it is necessary to install these facilities at a large number of places, which requires a large amount of capital investment. Therefore, the number of installation locations is naturally limited, and it is unavoidable that the collection of traffic congestion information is locally biased.

It is considered that the most needed information for the vehicle driver among the driving information is road congestion information, but in reality, it is extremely difficult to grasp all the road congestion information up to the destination. The present invention provides a road traffic congestion information collecting device that collects road traffic congestion information in real time with high accuracy without the need to install a TV camera, a vehicle sensor, and other vehicle position detection devices on a road.

[0006]

A vehicle is equipped with a speed sensor, a vehicle position detection device 1 and wireless communication devices 6 and 7, and a base is equipped with wireless communication devices 11 and 19 and an information processing device 15 and transmitted from the vehicle. The road congestion information collecting device is configured to receive the speed information and the vehicle position information that are generated at the base and statistically calculate the speed information and the vehicle position information by the information processing device.

The speed sensor and the vehicle position detecting device constitute a road congestion information collecting device which is a speed sensor and a vehicle position detecting device in a self-contained car navigation device mounted on a vehicle. In addition, the vehicle constitutes a road traffic congestion information collection device that is a taxi. Further, a road congestion information collecting device is configured in which a plurality of bases are configured and road congestion information is mutually exchanged between the bases.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. In summary, the road congestion information collecting device of the present invention is a self-supporting car navigation device which is a speed sensor and a vehicle position detecting device for vehicles traveling with a large number of vehicles distributed in a wide range with a relatively small regional bias. 1 and wireless transceivers 6 and 7, and the wireless transceiver 1 is installed at the base.
1, 19 and the information analysis traffic jam mapping circuit 15 which is the information processing device, receives the speed information and the vehicle position information transmitted from the vehicle at the base, and statistically calculates the speed information and the vehicle position information by the information processing device. Is to be processed. Then, by constructing a plurality of bases and mutually exchanging and providing the road congestion information between the base A and the base B, a road congestion information collecting device capable of grasping the road congestion information in a wider area is configured. It Hereinafter, a specific description will be given with reference to FIGS. 1 and 2.

First, the side of the device mounted on the road traveling vehicle side that transmits vehicle position information and speed information will be described. As a road vehicle, a taxi, which has a relatively small regional bias and is widely dispersed in a wide area, and is considered to have a relatively large proportion of self-supporting car navigation devices, is suitable.

Reference numeral 1 denotes a self-supporting car navigation device, which may be of any type as long as it is a self-supporting car navigation device. In the road congestion information collecting device of the present invention, of the information obtained by the self-supporting car navigation device,
In particular, vehicle position information and speed information are used. An information memory 2 temporarily stores the vehicle position / speed information obtained by the self-supporting car navigation device 1.
Information is wirelessly transmitted, but since a communication method that cannot normally transmit and receive in time is adopted for transmitting this kind of information, the information is temporarily stored in the information memory 2. Need to remember.

Reference numeral 3 denotes a voice microphone, which is used not only for the vehicle driver to input various information related to road congestion by voice, but also for normal business contact. An audio amplifier 4 amplifies an audio signal obtained by the microphone 3. Reference numeral 5 denotes a signal multiplexing circuit, which is a circuit for time-division multiplexing the vehicle position / speed information signal obtained by the self-supporting car navigation device 1 and the voice signal obtained by the microphone 3 in order to transmit them by a common carrier wave.
The signal multiplexing circuit 5 includes an independent car navigation device 1
The vehicle position / velocity information signal obtained by (1) is input via the information memory 2, and the voice signal obtained by the vehicle driver is input via the voice signal amplifier 4, where both signals are multiplexed.

Reference numeral 6 denotes a radio transmitter, which is a signal multiplexing circuit 5
The signals multiplexed by are wirelessly transmitted. The vehicle position / speed information signal obtained by the self-supporting car navigation device 1 is converted into a digital serial signal and automatically transmitted at regular intervals. However, when a voice information signal is transmitted, this is transmitted with interrupt priority. It When the transmission of the voice information is completed, the transmission of the vehicle position / speed information signal is resumed and restarted.

Next, the receiving side of the devices provided on the base side will be described. Reference numeral 11 denotes a wireless receiver, which receives the multiplexed signal of the vehicle position / speed information signal and the voice information signal wirelessly transmitted by the wireless transmitter 6 as described above. 12 is a voice separation circuit, 13 is a voice signal amplifier, 14
Is a speaker. The voice separation circuit 12 includes a radio receiver 1
1 receives the multiplexed signal as described above received by
The vehicle position speed information signal and the voice information signal are separated.

Reference numeral 15 is an information analysis traffic jam map circuit,
The vehicle position / velocity information signal obtained by the self-contained car navigation device 1 out of the multiplexed signals separated by the voice separation circuit 12 is input to this and analyzed, and the congestion location and the congestion degree are displayed on the map. To expand. Regarding the road congestion information transmitting side of the equipment provided on the base side, 16 is a voice microphone, which is used by the base side to input various information related to road congestion by voice, and for normal business communication. Also used. Reference numeral 17 is an audio amplifier that amplifies an audio signal obtained by the microphone 16.

Reference numeral 18 denotes a signal multiplexing circuit, which is a common carrier for the road congestion information signal obtained by analyzing the vehicle position / speed information signal obtained by the information analysis congestion map circuit 15 and the voice signal obtained by the microphone 16. It is a circuit for time division multiplexing for transmission by. A wireless transmitter 19 wirelessly transmits the signals multiplexed by the signal multiplexing circuit 18. Since the vehicle position / velocity information signal is transmitted momentarily from a large number of road traveling vehicles that are distributed in a wide area without bias, the road congestion information is always the latest data.

Finally, the side of the device mounted on the road traveling vehicle side that receives the road congestion information signal will be described. Reference numeral 7 denotes a wireless receiver, which receives the multiplexed signal of the road congestion information signal and the voice information signal wirelessly transmitted by the wireless transmitter 19 as described above. 8 is a voice separation circuit,
Reference numeral 9 is an audio signal amplifier, and 10 is a speaker. The multiplexed signal as described above received by the wireless receiver 7 is input to the voice separation circuit 8, and the road congestion information signal and the voice information signal are separated.

The road congestion information signal separated by the voice separation circuit 8 is input to the car navigation device 1, and the congestion point and the congestion degree are displayed on the map. The vehicle driver deals with the vehicle operation by referring to the display of the congestion location and the congestion degree. Here, referring to FIG. 2, this is a diagram illustrating a plurality of bases and their mutual relationships. By constructing a plurality of bases and exchanging and providing the road traffic congestion information between the bases A and B, the road traffic congestion information collecting device capable of grasping the road traffic congestion information in a wider area is configured.

[0018]

As described above, according to the road congestion information collecting device of the present invention, the vehicle position / speed information signals are transmitted from the road traveling vehicles distributed over a wide area without any bias, and the road congestion information is always updated. Since the data is based on the above, the vehicle driver can grasp the road congestion information in real time.

The road congestion information is accurate because it is created on the basis of the vehicle position / velocity information signals transmitted from the road traveling vehicles, which are distributed in large numbers in a wide area without any bias. Further, since the road congestion information collecting device of the present invention is composed only of a device provided at the base and the road traveling vehicle, it is compared with a device provided on the road or on the ground for grasping the road congestion information. Therefore, the capital investment is extremely small.

When the road traveling vehicle is a taxi, it is preferable that the already installed wireless transceiver can be diverted. In the end, it was possible to configure a road congestion information collecting device that collects road congestion information without installing any device such as a TV camera, a vehicle sensor or the like for detecting the presence of a vehicle on the road.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating an embodiment of the present invention.

FIG. 2 is a diagram showing a relationship between bases.

[Explanation of symbols]

 1 Independent Car Navigation Device 6 Radio Transmitter 7 Radio Receiver 11 Radio Receiver 15 Information Analysis Traffic Congestion Mapping Circuit 19 Radio Transmitter

Claims (4)

[Claims] 1. A vehicle includes a speed sensor, a vehicle position detecting device, and a wireless communication device, and a base includes a wireless communication device and an information processing device. The base receives speed information and vehicle position information transmitted from the vehicle. The information processing apparatus statistically arithmetically processes speed information and vehicle position information. 2. The road congestion information collecting device according to claim 1, wherein the speed sensor and the vehicle position detecting device are a speed sensor and a vehicle position detecting device in an autonomous car navigation device mounted on a vehicle. Characteristic road congestion information collection device. 3. The road congestion information collecting device according to claim 1, wherein the vehicle is a taxi. 4. The road congestion information collecting device according to claim 1, wherein a plurality of bases are formed and the road congestion information is mutually exchanged between the bases.