JP2000194987A - Large-sized car guidance and warning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discriminate a large truck from a medium-sized truck and to guide and to warn the travel change of the large truck and an excessive loading vehicle by detecting the vehicle kind number of a number plate, axle load, total weight, the farthest shaft distance, full length, etc. SOLUTION: Vehicle discriminating devices 3a and 3b operate the interval of each axle shaft of a vehicle 1. A weight sensor part 2 measures the number of axle shafts of the vehicle 1, the farthest shaft distance, a full length and each axle load or wheel load and operates total weight. These operations are performed by an analysis controlling part 8. A 1st number recognizing device 4 recognizes the number plate of the measured vehicle 1. The analysis controlling part 8 discriminates that the vehicle number of the number plate of a large-sized car and the vehicle 1 whose excessive loading is detected through the weight sensor part 2 and the vehicle discriminating devices 3a and 3b coincides with the vehicle kind number of the number plate of the vehicle 1 recognized by a 2nd number recognizing device 5, and display such as an excessive loading warning together with the vehicle number is outputted to a guidance and warning display device 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overload warning system for automatically measuring and confirming an offloaded vehicle traveling in an overloaded state and alerting a driver of the offending vehicle.

[0002]

2. Description of the Related Art Conventionally, it has been pointed out that one of the causes of complaints, such as noise and vibration, from residents along the general highway is the passage of large vehicles, especially overloaded vehicles. Accordingly, attempts have been made to make the traveling lane of large trucks the center of the road, such as Route 7, to reduce noise and vibration at all.

For example, the number plate of a running vehicle is captured as an image by a dedicated camera, and the characters of the license plate or the area of the dial are detected to discriminate between a large vehicle plate and a plate smaller than a medium-sized vehicle. Means are provided for guiding to change lanes. Of course, regulatory signs are also used.

For overloaded vehicles, a weighing scale immediately before or immediately after the tollgate booth, or an axle weigher in a special vehicle automatic measurement system under the jurisdiction of the Ministry of Construction is installed on a general road, or is simply installed on a general vehicle. An axle load meter that measures axle load is used for loading load measurement, and means for manually confirming the overload by comparing the allowable load calculated by manually inputting vehicle type data has been adopted. Was.

[0005]

In the conventional method of discriminating between a large car plate and a plate of a medium-sized car or smaller, a clear image cannot be taken because the license plate is dirty or the position is changed. In such a case, erroneous determination may be made, which is inferior in reliability.

Further, the conventional weighing machine checks whether or not the load exceeds an allowable load. In the case of overload control based on the Road Traffic Law, only the current criminal can be controlled. As a result, several police officers were detained during the crackdown time, which was laborious and time consuming.

[0007] Therefore, it is difficult to continuously monitor the load of a large luggage vehicle or the like without a break, and it has not been possible to alert the driver on a daily basis.

[0008] In addition, traveling of an overloaded large luggage vehicle or the like promotes not only noise complaints from roadside residents, but also failures directly related to accidents such as braking and axle damage, and a reduction in road life due to exceeding the allowable weight of the road. It was the cause of that.

[0009]

SUMMARY OF THE INVENTION A large vehicle guidance / warning system according to the present invention detects a vehicle type number, an axle load, a total weight, a farthest axle distance, an overall length, etc. of a license plate of each vehicle. It discriminates between large trucks and ordinary trucks, and guides or warns of changes in the running of large trucks and overloaded vehicles. However, for some vehicles, it is necessary to refer to the base of the center for the number read by the number recognition device and determine that the vehicle is a large truck.

That is, a vehicle discriminating device for discriminating an individual vehicle traveling at a predetermined position on a road or the like, a weight sensor unit provided on a road surface close to the vehicle discriminating device and measuring an axle load or a wheel load of the vehicle; By the vehicle identification device, the first number recognition device that reads the characters and numbers displayed on the license plate of each vehicle determined, and the driver of the overloaded vehicle can recognize the violation along with the driving vehicle number while traveling, Inputs signals from the guidance / warning display device provided on the road surface or on the roadside zone to enable guidance, the vehicle discriminating device, the weight sensor unit, and the first number recognition device, and discriminates between large vehicles and overloaded, and determines And an analysis control unit that outputs the vehicle number and the like of the offending vehicle so as to be displayed on the guidance / warning display device.

A vehicle discriminating device for discriminating an individual vehicle traveling at a predetermined position on a road or the like; a weight sensor unit provided on a road surface adjacent to the vehicle discriminating device for measuring the axle load or wheel load of the vehicle; A first number recognition device for reading characters and numbers displayed on a license plate of a vehicle determined by the vehicle determination device, a second number recognition device for reading a license plate of the vehicle at any time, and a driver of an overloaded vehicle. Is provided to display the vehicle number etc. so that the vehicle can recognize and guide the violation along with the vehicle number.
Warning display device, vehicle identification device, weight sensor, first
The signal of the number recognition device is inputted, the overload is determined, and when the overloaded vehicle is confirmed by the second number recognition device, the vehicle number or the like is output immediately to be displayed on the warning display. It consists of an analysis control unit.

Further, the analysis control section performs an operation for determining overloading when the first number recognition device determines the number 1 or number 8 of the lorry. However,
For some vehicles, it is necessary to refer to the center base for the number read by the number recognition device and determine that the vehicle is a large truck.

[0013] Further, a vehicle discriminating device or a weight sensor unit is disposed at an interval of 4 m or less in the traveling direction of the vehicle,
This allows the analysis control unit to calculate the vehicle speed.

[0014]

[Operation] Vehicle discriminating device 3a. Reference numeral 3b denotes a loop coil disposed on the road surface, a super radio wave transmitting / receiving device provided in an upper space of the road, and the like.
Is determined one by one.

The weight sensor unit 2 includes a vehicle discriminating device 3a. 3
It is arranged on the road surface close to b and detects the weight of each axle or wheel set and the passage of the axle or wheel set.

Vehicle discriminating device 3a. 3b or the weight sensor unit 2 is the shortest vehicle length in the traveling direction of the axle on the road surface.
The vehicle 1 is disposed so as not to detect three or more vehicles at the same time, and each vehicle 1 is reliably identified. In the middle, the other weight sensor unit 2 or the vehicle discriminating device 3a. By disposing 3b, the axle load or wheel load of each vehicle and the entry of the vehicle are detected. The analysis control unit 8
Vehicle discriminating device 3a. 3b, each vehicle is identified by receiving the signal of 3b.
a. 3b or the weight sensor unit 2 detects the traveling speed of the vehicle 1 from the time difference when the entry of the axle 1 is detected, and further detects the difference in the detection time of the axle load or wheel load detected by the weight sensor unit 2 sequentially. Calculate the far axis distance, total vehicle length, and number of axles. Then, the data is compared with the stored data such as the distance between the vehicles and the number of axes, and it is determined whether or not the vehicle is a large truck, the type of the vehicle, and the allowable load. However, in some vehicles, when the number or the like is determined, an operation for determining overload is performed. However, there are some types of vehicles which need to refer to the center base for the number read by the vehicle number recognition device and determine that the truck is a large truck.

The first number recognizing device 4 reads the license plate of the vehicle 1 and outputs it to the analysis control unit 8.
When the number 8 and the number 8 are detected, the vehicle number is stored. The second number recognizing device 5 checks the offending vehicle or the large vehicle, identifies the offending vehicle if the vehicle number stored in the analysis control unit 8 matches, and warns the warning display device 6.

[0018]

FIG. 1 shows a first embodiment of a large vehicle guidance / warning system according to the present invention, which is installed on a general road. In the figure, reference numeral 1 denotes a vehicle, 2 denotes a weight sensor unit, and 3a and 3b denote vehicle discriminating devices. Although the vehicle discriminating devices 3a and 3b show loop coils disposed on the road in the drawing, the vehicle discriminating devices 3a and 3b may be super-radio wave transmitting / receiving devices that detect the vehicle 1 from above in a space above the road surface. The vehicle discriminating devices 3a and 3b distinguish between the front and rear vehicles 1. Further, a pair of vehicle discriminating devices 3a, 3
b is arranged narrower than the length of a small vehicle, so that a separate vehicle 1 is detected by the vehicle discriminating devices 3a and 3b, and another vehicle 1 is prevented from being interrupted, and the vehicle discriminating device 2, the weight sensor unit 3a, Measurement of vehicle speed, axle load, wheel load, etc. by 3b and correspondence with the vehicle 1 are ensured.

The vehicle speed of the vehicle 1 is calculated based on the time difference between the time when the head of the vehicle 1 is sequentially detected by the vehicle discriminating devices 3a and 3b and the interval at which the vehicle discriminating devices 3a and 3b are provided. The first axis and the second axis on the weight sensor unit 2 correspond to the calculated speed.
The distance between each axle is calculated by multiplying the time difference when the axis, the third axis and the like pass. In addition, the weight sensor unit 2 measures the number of axles, the farthest axle distance, the total length, the axle weight or the wheel load of each vehicle 1, and calculates the total weight. These calculations are performed by the analysis control unit 8 to determine the already stored vehicle type and select an allowable load.

In FIG. 1, the weight sensor unit 2 is arranged between the pair of vehicle discriminating devices 3a and 3b, but the same applies when one vehicle discriminating device 3 is arranged between the pair of weight sensor units 2. Measurement is possible. That is, the vehicle speed and the front and rear vehicles are distinguished by the front and rear weight sensor units 2, and each vehicle is determined based on the time difference when the first axis, the second axis, the third axis, and the like passing on one weight sensor unit 2 pass. Is calculated.

The first number recognizing device 4 recognizes the license plate of the vehicle 1 measured by the weight sensor 2 and the vehicle discriminating devices 3a and 3b. In FIG. Is activated when the front of the vehicle is detected, and the number of the axle 1 is input and stored in the analysis control unit 8.

The second number recognition device 5 detects a license plate of the vehicle 1 running at any time, and is provided with a weight sensor provided in front of the expressway toll booth, near the exit of the expressway, and for confirming overloading. The vehicle number of the license plate of the large vehicle and the vehicle 1 for which overload has been detected through the unit 2 and the vehicle identification devices 3a and 3b, and the license plate number of the vehicle 1 which is recognized at any time by the second number recognition device 5. The analysis control unit 8 determines that they are the same, and outputs a display such as an overload warning together with the vehicle number to the guidance / warning display device 6 at the same time. The guidance / warning display device 6 is provided behind the second number recognition device 5 so that the driver of the overloaded vehicle can check the display while traveling.

The vehicle number stored in the analysis control unit 8 can be reduced in memory by recognizing the same number by the second number recognition device 5 and then sequentially deleting it after a certain period of time.

The guidance / warning display device 6 is provided at a position which is not far from the first number recognition device 4 and is used for guiding the lane of a large vehicle, alerting, etc. Need not be provided.

Next, another embodiment of the guidance / warning system for a large vehicle according to the present invention will be described with reference to FIG. The weight sensor unit 2, the vehicle discriminating devices 3a and 3b, and the first number recognizing device 4 are arranged on the road so as to operate similarly to FIG.

The second number recognizing device 5 is provided at the upper part of each toll booth 9 and reads the number plate of the vehicle 1 entering at any time, and inputs the vehicle number to the analysis control unit 8. The analysis control unit 8 receives the vehicle number of the overloaded vehicle input via the weight sensor unit 2, the vehicle discriminating devices 3a and 3b, and the first number recognizing device 4 and the input from the second number recognizing device 5. It is determined that the vehicle numbers are the same and displayed on the warning display device 6 and an alarm lamp 10 provided on each approach road of the toll booth 9.
Lights to prevent entry of overloaded vehicles. At this time, actuation of the gate may be considered as one means, and a control signal is output from the analysis control unit 8 for these means. As another means, it is possible to issue a warning toll so as to automatically get off at the next interchange.

[0027] The large vehicle guidance / warning system of the present invention can also be used as means for guiding a large cargo vehicle traveling on a general trunk line toward a center line to prevent noise. That is, vehicles with eight numbers range from passenger cars to large freight cars. Generally, a large freight vehicle has three or more axles, and the first axle axle is about 5000 kg regardless of whether it is loaded or not. In the case of a passenger car, it has two shafts, and the first shaft axle weight does not reach 5000 kg. In addition, freight vehicles with one number include ordinary freight vehicles and large freight vehicles. Regular freight vehicles are usually two-axle vehicles, and large freight vehicles have three or more axles. However, for some vehicles, it is necessary to refer to the base of the center for the number read by the number recognition device and determine that the vehicle is a large truck. From the above, a large vehicle can be recognized by the recognition of the vehicle type number by the first number recognition device 4, the detection of the first axle weight and the number of axles by the weight sensor unit 2, and the discrimination of each vehicle 1 by the vehicle discrimination devices 3a and 3b. Is accurately determined, and the guidance / warning display device 6 instructs a lane change or the like. Reference numeral 11 denotes an axle for measuring the axle of a passing vehicle by installing a weighing scale immediately after the expressway toll booth and an axle weigher in a special vehicle automatic measurement system under the jurisdiction of the Ministry of Construction on a general road or simply installing the axle weight. This is a truck scale in which a weighing machine or the like is used for measuring a load to be loaded, and an overload is artificially confirmed by comparing an allowable load calculated by manually inputting data of a vehicle type. Reference numeral 12 denotes a measuring instrument installation and measurement room of the truck scale 11. The truck scale 10 and the measuring equipment installation and weighing room were installed in order to confirm by a conventional means when the checked vehicle driver was unwilling about the judgment measured in front of the tollgate booth. Equipment.

【The invention's effect】

As described above, in the large vehicle guidance / warning system of the present invention, a large vehicle and an overloaded vehicle are automatically specified and displayed on the guidance / warning display device, and no manual operation is required. In addition, traffic of overloaded vehicles can be blocked or eliminated from the expressway, and road damage can be reduced. In addition, overloaded large freight vehicles can no longer travel long distances on expressways and highways, and violations of laws and regulations are reduced,
Since this can be used to alert the driver on a daily basis, it has the effect of contributing to nationwide traffic safety.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a large vehicle guidance / warning system according to the present invention.

FIG. 2 is a diagram showing another embodiment of the guidance / load warning system for a large vehicle according to the present invention.

[Explanation of symbols]

 1-Vehicle 2-Weight sensor 3a. 3b-vehicle discriminating device 4-first number recognizing device 5-second number recognizing device 6-guidance / warning display device 8-analysis control unit 9-toll booth 10-alarm lamp 11-truck scale 12-measuring device Installation and weighing room

Claims (4)

[Claims] 1. A vehicle discriminating device for discriminating an individual vehicle traveling at a predetermined position on a road or the like, and a weight sensor unit provided on a road surface adjacent to the vehicle discriminating device and measuring an axle load or a wheel load of the vehicle. And a first number recognition device that reads letters and numbers displayed on the license plate of the vehicle determined by the vehicle determination device, and the driver of the overloaded vehicle can recognize the violation along with the number of the driving vehicle while driving, Signals from the guidance / warning display device provided on the road surface or on the roadside zone so as to be able to guide the vehicle, the above-mentioned vehicle discriminating device, the weight sensor unit, and the first number recognition device are inputted to discriminate between a large vehicle and overloaded. And an analysis control unit for outputting the vehicle number and the like of the offending vehicle so as to be displayed on the guidance / warning display device so as to guide the vehicle to a predetermined traveling lane. Large car guidance and warning system. 2. A vehicle discriminating device for discriminating an individual vehicle traveling at a predetermined position on a road or the like, and a weight sensor unit provided on a road surface adjacent to the vehicle discriminating device and measuring an axle load or a wheel load of the vehicle. A first number recognition device for reading characters and numerals displayed on the license plate of the vehicle determined by the vehicle determination device, a second number recognition device for reading the license plate of the vehicle at any time, and operation of the overloaded vehicle A guidance / warning display device provided to display a vehicle number or the like so that a driver can recognize and guide a violation together with a vehicle number, and a signal from the vehicle identification device, the weight sensor unit, and the first number recognition device. Is input to determine overloading, and when a vehicle identified as overloaded is confirmed by the second number recognition device, a warning table is displayed immediately with the vehicle number, etc. A large-sized vehicle guidance system, comprising: an analysis control unit that outputs an image to be displayed on a display board.
Warning system. 3. The large-sized vehicle guidance / warning system according to claim 1, wherein the analysis control unit is configured to control the large-sized cargo when the first number recognition device determines the display of the first and eighth numbers of the lorry. A large-sized vehicle guidance / warning system that performs an operation of determining whether the vehicle is classified as a vehicle or is overloaded. 4. A large vehicle guidance / warning system according to claim 1 or 2, wherein a vehicle discriminating device or a weight sensor unit is disposed at a distance of 4 m or less in a traveling direction of the vehicle, and a vehicle speed is controlled by an analysis control unit. A large vehicle guidance / warning system characterized by being able to calculate.