JP2003288669A - Redundancy configuration system by multiple facilities - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a redundancy configuration system by multiple facilities capable of avoiding a vehicle collision by wrong information by avoiding the reporting of wrong information to an AHS vehicle by the influence of worsening weather environment. <P>SOLUTION: This system has a road facility A having a road state detecting means 1 for receiving the providing of road state information acquired by a pilot system D that is an existing facility and detecting the road state of a part concerned, and an AHS center facility B. The AHS center facility B has a database means 3 for retaining linear information of road, information related to weather condition, and weather condition information to stop the AHS system, and a control determination means 5. The control determination means 5 determines the automatic stop of the system by the influence of worsening weather environment in the position concerned from the information collected by access and stops the system when the weather environment is worsened. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention automatically compares and examines the operating state of a pilot system, which is the existing equipment at the relevant site, with the operating state of an AHS system (driving support road system) to determine the environmental conditions of the system. It is related to a redundant configuration system with multiple facilities that can detect a system stop due to the system at an early stage and detect a device abnormality at a early stage by comparing the device operating states and stop the system to maintain a highly reliable system. is there.

[0002]

2. Description of the Related Art In the conventional AHS system, it is difficult to judge the failure of the road condition grasping equipment when the system fails due to the deterioration of the weather environment (state). Therefore, there is a problem that an error in the braking distance determination or an error in the collision determination of the AHS vehicle occurs by notifying the AHS vehicle of erroneous information. Further, in the conventional AHS system, when the road condition grasping equipment notifies the erroneous information due to the deterioration of the weather environment or the like, the erroneous information is notified to the AHS vehicle so that the braking distance of the AHS vehicle is erroneously determined or the collision is determined. There was a problem that the error of occurred.

[0003]

SUMMARY OF THE INVENTION Therefore, the present invention solves the above-mentioned conventional problems, and avoids the transmission of erroneous information to the AHS vehicle due to the influence of the deterioration of the weather condition. A redundant configuration system with multiple facilities that can avoid the collision of vehicles and the like, and also can notify the center facility manager of the system stop due to the deterioration of the weather condition to prevent erroneous information from being notified to the AHS vehicle at an early stage. The purpose is to provide.

[0004]

In order to achieve the above-mentioned object, the invention according to claim 1 is provided with the road condition information acquired by a pilot system which is an existing facility, and at the same time, the condition of the road of the relevant part is checked. A road facility equipped with a road condition detecting means for detecting; and an AHS center facility,
This AHS center equipment comprises a database means for holding road linear information, information on weather conditions and weather condition information for stopping the AHS system, and a control judging means. It is characterized by judging whether or not the system is automatically stopped due to the influence of the deterioration of the weather environment at the relevant part from the information collected by accessing the database information and the database means, and stopping the system when the weather environment is deteriorated. To do.

The invention of claim 2 is the same as that of claim 1
The HS center equipment includes an external connection device, collects wide-area weather information obtained from the external connection device, collects the weather information, and road condition information and a database collected from the road condition detection means of the relevant part. It is characterized in that the AHS system is automatically stopped when the weather environment exceeds the allowable range of system shutdown by comparing and examining the weather condition information from the means.

The invention of claim 3 is characterized in that, in claim 1 or 2, the AHS system is not stopped in a meteorological environment where the wind speed is 25 m / s or less, based on the meteorological condition information held in the database means. To do. The invention according to claim 4 is the weather condition information according to any one of claims 1 to 3, wherein the hourly rainfall is 50 m.
The feature is that the AHS system is not stopped in a meteorological environment of m / h or less. A fifth aspect of the present invention is characterized in that, in any one of the first to fourth aspects, the AHS system is not stopped in a meteorological environment having a visibility of 200 m or more in the meteorological condition information held in the database means. According to the invention of claim 6, in any one of claims 1 to 5, the AHS system is not stopped in the meteorological condition information held in the database means in a fog-prone spot where the visibility is 50 m or more. Characterize.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, at the installation position of the pilot system,
Comparing the road condition information collected from the road condition detection means of the relevant part and the weather condition information from the database means
It is characterized by continuing the operation of the system when the control judging means judges that there is no need to automatically stop the system in a weather environment that exceeds the allowable range of stopping the system. .

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, when the system is automatically stopped in a weather environment exceeding the allowable range of the system stop, the operating state of the pilot system is compared. By that AHS
It is characterized in that the control judgment means of the center equipment is operated to stop the AHS system.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As an embodiment of the present invention, there are a plurality of patterns as to which of the means, devices, equipment, etc. is road equipment A, AHS center equipment B, and a plurality of other systems C. However, here, as shown in FIG. 1, the road equipment A comprises the road condition detecting means 1 and the roadside processing equipment 2, and the AHS center equipment B comprises the database means 3, the external connection device 4, and the control judging means 5. , A plurality of other systems C are provided with a wide area meteorological information receiving facility 6.
D is an existing pilot system, which includes road condition detecting means 7, control equipment 8, and information display board 9.

In the road equipment A, the road condition detecting means 1
Is for detecting the state of the road by a visible image type or an infrared image type, and the roadside processing facility 2 processes the road condition information received from the road condition detecting means 1 into information used in the AHS system. , The road condition information and meteorological information such as rainfall, wind speed, visibility, snowfall etc.
It is provided to the control determination means 5 of the HS center equipment B. The database means 3 of the AHS center equipment B holds the linear information and the weather condition information of the target portion and the road in the vicinity thereof, and provides the information by the access from the control determination means 5. The connection device 4 collects wide area weather information from the receiving equipments 6 of the other systems C, and provides the information by the access from the control determining means 5, which is the roadside processing equipment. 2, information from the database means 3, external connection device 4 AHS due to the influence of the deterioration of the weather environment
Determine whether the system is automatically stopped and stop the system as appropriate. It also assists the center facility manager in making system control decisions by notifying the system stoppage due to the deterioration of the weather environment.

The pilot system D is a system in which the road condition information is acquired by the road condition detecting means 7 and the acquired information is notified to a general vehicle through the information display board 9 by the control facility 8. The control equipment 8 is the road condition detecting means 7
The obtained information is processed into an output form on the information display board 9, and the obtained information is provided to the road condition detecting means 1 of the road equipment A. Further, the pilot system D exchanges information such as oncoming vehicle information, low speed vehicle information, and stopped vehicle information with a road condition grasping facility (not shown) installed in the AHS system.

In the above, the road condition information, the weather information, the road linear information, and the weather condition information to stop the system are collected from the pilot system D through the road condition detecting means 1 of the road facility A and the roadside processing facility 2. Own AH
From the various data from the database means 3 of the S center equipment B and the wide area meteorological information from the external connection device 4, the control judgment means 5 is automatically used for comparison and examination in each part, and the weather environment deteriorates. If so, the AHS system is automatically stopped. When the system is automatically stopped in a weather environment that exceeds the allowable range of the system stop, the AH can be compared with the operating state of the pilot system D.
The control judgment means 5 of the S center equipment B is operated to stop the AHS system. The meteorological condition information stored in the database means 3 indicates that the wind speed is 25 m / s or less, the hourly rainfall is 50 mm / h or less, and the visibility is 200 m.
The AHS system is not stopped in the above-mentioned weather environment, or in the weather environment where the visibility is 50 m or more at the fog-prone point.

At the installation position of the pilot system D, the road condition information collected from the road condition detecting means 7 of the relevant part and the meteorological condition information from the database means 3 are compared and examined, and the allowable range of system stoppage is determined. In the case of a weather environment that exceeds the above condition and the control determination means 5 determines that there is no need to automatically stop the system, the system operation is continued. This makes it possible to make highly reliable control decisions.

[0014]

As described above, the first to eighth aspects are provided.
Since the invention described in (1) is configured as described above, it is possible to avoid the collision of the vehicle due to the erroneous information by avoiding the notification of the erroneous information to the AHS vehicle due to the influence of the deterioration of the weather environment. In addition, weather information collected from multiple other systems and weather information detected by the AHS system (wind speed,
By automatically comparing and examining the visibility distance, hourly rainfall, snowfall amount) and the road condition information of the AHS system, a reliable and high-speed system control judgment can be made. Further, when the system is stopped, the center facility manager is also notified of the system stop due to the deterioration of the meteorological environment, and in this way, it is possible to prevent the false information from being notified to the AHS vehicle at an early stage. is there.

[Brief description of drawings]

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

[Explanation of symbols]

A road equipment B AHS center equipment C Multiple other systems D pilot system 1 Road condition detection means 2 Roadside processing equipment 3 database means 4 External connection device 5 Control judgment means 6 Wide area weather information receiving equipment

Claims (8)

[Claims] 1. Road equipment provided with road condition information acquired by a pilot system, which is an existing facility, and equipped with road condition detection means for detecting the condition of the road at the relevant site, and road linear information and weather conditions. Information and information about weather conditions for stopping the AHS system, and a control judgment means. The control judgment means accesses and collects information from the road equipment side and the database means. AHS center equipment that determines whether or not the system automatically stops due to the influence of the deterioration of the meteorological environment in the relevant part from the information and stops the system if the meteorological environment deteriorates. Redundant configuration system by. 2. The AHS center equipment comprises an external connection device, collects wide area weather information obtained from the external connection device, and collects the collected weather information and the road condition detection means of the corresponding part. The redundancy by a plurality of facilities according to claim 1, wherein the road condition information and the weather condition information from the database means are compared and examined, and the AHS system is automatically stopped when the weather environment exceeds the allowable range of the system stop. Configuration system. 3. The meteorological condition information stored in the database means is A in a meteorological environment where the wind speed is 25 m / s or less.
The redundant configuration system according to claim 1, wherein the HS system is not stopped. 4. The weather condition information stored in the database means does not stop the AHS system in a weather environment where the hourly rainfall is 50 mm / h or less.
A redundant configuration system comprising a plurality of facilities according to any one of 1. 5. The meteorological condition information stored in the database means is AH in a meteorological environment with a visibility of 200 m or more.
The redundant configuration system according to claim 1, wherein the S system is not stopped. 6. The plurality of facilities according to claim 1, wherein the AHS system is not stopped in the meteorological condition information held in the database means in a meteorological environment where the visibility is 50 m or more at a fog-prone point. Redundant system. 7. At a pilot system installation position, the road condition information collected from the road condition detecting means of the relevant part is compared and examined with the meteorological condition information from the database means, and the weather exceeds the allowable range of system stoppage. 7. The redundant configuration with a plurality of facilities according to claim 1, wherein the operation of the system is continued when the control determination means determines that there is no need to automatically stop the system in an environment. system. 8. When the system is automatically stopped in a meteorological environment exceeding the allowable range of the system stop, the control determination means of the AHS center equipment is operated by comparing with the operating state of the pilot system to operate the AHS system. The redundant configuration system with a plurality of facilities according to claim 1, wherein