JP2000149184A - Overloading control unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To photograph evidence of a violating vehicle and its driver by automatically detecting and confirming a vehicle which travels in an overloaded state or exceeds a speed limit. SOLUTION: This device comprises a vehicle decision device which decides individual vehicles, a 1st license plate number recognition device 4 which reads the license plates of the vehicles out, a measuring instrument part 7 having a weight sensor part which measures shaft weight or wheel weight, a vehicle detection part which is installed >=20 m behind the measuring instrument part 7 and detects the head part of a vehicle, a 2nd license plate number recognition part 5 which reads the license plate numbers, a photographing device part 13 having a violating vehicle photographing camera 12 photographing the license plate of a vehicle specified as a vehicle violating load limit or speed limit and the face of the driver, and a violating vehicle photography part having an analysis control part 14 which analyzes the data obtained by the photographing device part 13 and measuring instrument part 7, decides the violating vehicle, and performs control so that the camera 12 is placed in photographing operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overload control device which automatically measures and confirms a vehicle with an overload and a vehicle with a speed violation, and takes a picture of the face of the vehicle and the driver to control the vehicle.

[0002]

2. Description of the Related Art Conventionally, the loading weight of a vehicle traveling on a general road is measured by an axle meter immediately before an expressway toll booth, an axle meter in a special vehicle automatic measurement system under the jurisdiction of the Ministry of Construction,
An axle load meter or the like that measures the axle load of a vehicle that is installed or simply installed on a general road and passes is used for measuring a loaded load, and a device that confirms a display by comparing it with an allowable load has been used.

[0003] On the other hand, in the case of running a vehicle, an automatic speed control device is installed on a highway or the like, and some vehicles take a vehicle number and a photograph of the driver's face for a violating vehicle.

[0004]

The conventional axle load meter checks whether or not the load exceeds the allowable load. When the overload is controlled based on the Road Traffic Law, only the current criminal is controlled. Not be able to do so, resulting in several police officers being detained throughout the crackdown time. For this reason, overloading, which makes driving itself dangerous in road traffic, has been restricted both in place and time for human reasons.

[0005] In addition, since crackdowns are carried out outdoors regardless of the weather and time, safety measures and also health measures have to be considered so as not to be involved in traffic accidents.

On the other hand, the same applies to an automatic high-speed enforcement device installed on a highway or the like. However, when photographing a driver's face, photographing is allowed only after a violation is confirmed due to privacy or other problems. .

Further, since the mounting position of the camera for photographing the offending vehicle is fixed, in order to focus on the driver together with the license plate on the front of the traveling vehicle, the photographing point is narrow and the vehicle length is 4.5 m depending on the vehicle type. There is a problem that the photographing cannot be performed at the same timing after the overloading is confirmed because it is significantly different from 20 m.

[0008]

The overload control device of the present invention detects overload and speed violation from the allowable load of each axle, and erroneously recognizes the license plate of the vehicle and the driver's face with a camera for photographing the vehicle in violation. Shoot so that there is no.

That is, a vehicle discriminating device comprising a loop coil for detecting and discriminating an individual vehicle traveling at a predetermined position on a road, a first number recognizing device for reading a license plate of the vehicle detected by the vehicle discriminating device, and a shaft. A measuring device unit having a weight sensor unit for measuring weight or axle load, and a first and second vehicle detecting unit, which is installed at least 20 m behind the measuring device unit and detects a leading portion of each individual vehicle, The second number recognition device reads the license plate of the vehicle when the first vehicle detection unit detects the leading portion of the vehicle.
When the vehicle detection unit detects the license plate of the vehicle and the image of the driver's face, the camera unit for photographing the offending vehicle, and the data obtained from the camera unit and the measurement unit are stored and analyzed. And a violating vehicle photographing unit having an analysis control unit for controlling the vehicle for photographing the violating vehicle to identify the vehicle violating the load.

Further, by arranging the weight detection sensors and the vehicle discriminating devices alternately and providing them as a whole at predetermined intervals within 4 m, it is possible to discriminate each individual vehicle and measure the axle load or wheel load and the vehicle speed. In this way, the analysis control unit calculates the predicted arrival time until the offending vehicle, whose license plate has been read by the first number recognition device, reaches the first vehicle detection unit. When the offending vehicle is not used as the first vehicle detection unit, the license plate number of the offending vehicle stored in the analysis control unit is deleted.

Further, the first number recognition device and the second number recognition device confirm the vehicle by reading the number of the same vehicle.

[0012] The axle load, the number of axles, the number of axles, and the number of axles of each vehicle are determined by determining data while the vehicle identification device is detecting the same vehicle among the axle loads or wheel loads detected by the weight sensor unit. To detect the total weight, the distance between the shafts, and the like.

[0013] The analysis control unit specifies the vehicle that violates the loading weight from the signal input from the measuring device unit, confirms the vehicle that violates the loading weight from the signal input from the second number recognition device, and determines the photographing position. Upon receiving a detection signal of a violating vehicle from a predetermined second vehicle detection unit, a photographing signal is output to a violating vehicle photographing camera.

Further, a third vehicle detecting portion is provided between the first vehicle detecting portion disposed in front of the photographing device portion and the second vehicle detecting portion disposed behind and determining the photographing position. The detection signal of the same vehicle detected by the first vehicle detection unit and the third vehicle detection unit is input to the analysis control unit, and if a speed violation is confirmed, the second vehicle detection unit Is detected, the analysis control unit outputs an operation signal to the offending vehicle photographing camera.

The distance between the first vehicle detection unit and the second vehicle detection unit is set to 4 m or less, and the vehicle that violates the load detected by the first vehicle detection unit is detected by the second vehicle detection unit. Detect without misidentification.

[0016]

The vehicle discriminating device 2 comprises a vehicle detecting sensor 15 such as a loop coil provided on a road surface or a space above a road, an ultrasonic wave transmitting device, and the like. One by one is determined.
Further, the vehicle discriminating device 2 is connected to a pair of vehicle detecting sensors 15.
a and 15b, are separated from each other at a predetermined interval of 4 m or less, and the weight detection sensor 16 is disposed between the pair of vehicle detection sensors 15a and 15b. 15b, the position of the vehicle detection sensor 15a determines the head of the vehicle by detecting the vehicle by the vehicle detection sensor 15a disposed in front and detecting the distance between the vehicles by the vehicle detection sensor 15b.
Further, the vehicle detection sensor 15a disposed in front of the vehicle detects the distance between the vehicles, and the vehicle detection sensor 15b detects the vehicle, thereby determining that the position of the vehicle detection sensor 15b is the rear part of the vehicle. In addition, as means for discriminating the head portion and the tail portion of the vehicle by the vehicle discriminating device 2, it is also possible to detect and discriminate the rising and falling of the vehicle detection signal by the vehicle discriminating device 2.

The photographing device unit 13 is configured to have a distance of at least 20 m between the first vehicle detecting unit 9 for detecting the entry of the vehicle and the vehicle detecting sensor 15b serving as a measurement end point of the measuring device unit 7 and the longest. Even if it is a trailer, the same vehicle is simultaneously driven by the first vehicle detection unit 9 and the vehicle detection sensor 15b.
To not be detected. That is, the possibility of erroneous photographing due to the operation of the photographing device unit 13 in a state where the measurement by the measuring device unit 7 is incomplete is eliminated.

The first vehicle detecting section 9 constituting the photographing apparatus section 13 is provided on a road surface or a space above a road with an interval of 4 m or less between the first vehicle detecting section 9 and a second vehicle detecting section 10 which is a photographing point. Even if there is a series of vehicles, each vehicle is identified by detecting the distance between the vehicles, thereby preventing erroneous photographing.

[0019]

FIG. 1 is a diagram showing an embodiment of an overload control device according to the present invention. FIG. 2 shows an embodiment of the overload control device of the present invention arranged on a road. 1 and 2, the vehicle discriminating device 2 includes a pair of vehicle detection sensors 15a and 15b provided apart from each other in the traveling direction A of the vehicle 1. It is composed of vehicle detection sensors 15a and 15b. The vehicle detection sensors 15a and 15b include a loop coil disposed on a road surface or an ultrasonic sensor disposed in an upper space of a road,
A laser sensor or the like is used.

The weight sensor section is composed of a weight detection sensor 16 disposed on a road surface at an intermediate position between the pair of vehicle detection sensors 15a and 15b. Weight detection sensor 16
For example, a mat-type sensor, a piano-type sensor, an electric resistance wire-type sensor, and the like provided on a road surface are used. Reference numeral 4 denotes a first number recognition device constituting the measuring device unit 7, and when the vehicle 1 travels and enters the position of the measuring device unit 7,
The vehicle detection sensor 15a, which detects the vehicle 1 from the vehicle detection sensor 15a, operates the first number recognition device 4 simultaneously with the detection of the vehicle, reads the license plate of the vehicle 1 that has entered, and reads the number such as the vehicle type number and the registration number. The signal is output to the analysis control unit 14.

When the vehicle 1 travels, the axle load is sequentially detected by the weight detection sensor 16, and the analysis control unit 14 outputs the data of one vehicle until the vehicle detection sensor 15 b does not detect the vehicle 1.

The first vehicle detecting section 9 and the second vehicle detecting section 10 constituting the photographing apparatus section 13 are provided at a distance of 2 to 4 m from each other in the traveling direction of the vehicle.
Reference numeral 1 is arranged between the first vehicle detection unit 9 and the second vehicle detection unit 10. The first vehicle detection unit 9, the second vehicle detection unit 10, and the third vehicle detection unit 11 include a loop coil disposed on a road surface, an ultrasonic sensor, a laser sensor, and the like disposed in a space above a road. Used.

The first vehicle detector 9 operates the second number recognition device 5 simultaneously with the detection of the vehicle 1 to read the license plate of the vehicle 1 and output a number signal such as a vehicle type number and a registered number to the analysis controller 14. Then, the vehicle 1 is confirmed by comparing with the signal input from the first number recognition device 4. Further, the first vehicle detection unit 9 and the third vehicle detection unit 11 are installed so as to have a constant interval, and output a traveling signal of each vehicle 1 to the analysis control unit 14 to measure a difference in detection time. By doing so, the vehicle speed is measured. The second vehicle detection unit 10 is a point where a license plate of the running vehicle 1 and a photograph of the driver's face are taken, and is a position where the offending vehicle photographing camera 12 provided in the upper space ahead of the road is focused. Therefore, the vehicle detection signal of the second vehicle detection unit 10 is input to the analysis control unit 14.

Here, the distance between the vehicle detection sensor 15b constituting the measuring device section 7 and the first vehicle detecting section 9 constituting the photographing device section 13 is set to a maximum length of the trailer of 20 m or more. Eliminating the cause of erroneous photographing, such as that the vehicle whose vehicle weight or the like is being measured by the unit 7 is applied to the photographing device unit 13 and an overloaded check or the like cannot be performed.

The analysis control unit 14 analyzes each input data, specifies a loading violation and a speeding vehicle, and determines whether the vehicle violates the second vehicle.
When the vehicle enters the position of the vehicle detection unit 10, the operation signal is output to the offending vehicle photographing camera 12 to photograph the front of the offending vehicle.

In order to perform vehicle discrimination, the data of the total length of a vehicle, the distance between axles, and the number of axles are detected by detecting the total length, the axle distance, and the like of the vehicle detected from the vehicle speed and the like. Perform collation. Therefore, the permissible load of each vehicle is accurately found, and the overload is determined by comparing with the measured total weight of the vehicle. These operations can be performed by a series of operations of the analysis control unit 14. Vehicles in which overloading is a problem are a special vehicle having a vehicle type number displayed on a license plate and a lorry having a vehicle type number of 1. Special vehicles range from passenger cars to large freight vehicles. In general, the number of axles for special vehicles and large trucks is 3 or more, and the axle load of the first axle (engine) is 5 regardless of whether it is loaded or not.
Approximately 000 kg. Some passenger cars have three axes, but none have a first axis of 5000 kg or more. Similarly, in the case of a truck, a large truck has three axes and a normal truck has two axes.

In FIG. 1 and FIG. 2, a pair of vehicle detection sensors 15a and 15b are used in the vehicle discriminating device, and from when the vehicle detection sensor 15a detects a vehicle to when the vehicle detection sensor 15b does not detect the vehicle. Is determined to be the same vehicle and distinguished from other vehicles. As another means, when the weight detection sensor 16 detects the axle load and the wheel load, it utilizes the fact that the output signal changes according to the load and produces a peak, and analyzes the time from peak to peak to determine whether the vehicle is the same vehicle. It is also possible to determine whether or not. The total weight of the vehicle in this case is
While the vehicle detection sensor 15 is detecting one vehicle, the weight of each axle detected by the weight detection sensors 16a and 16b is added to the value obtained by adding the first measured axle load and the last measured axle load. An operation such as raising to the power of 1/2 is performed.

The overloaded data and the license plate data of the vehicle whose overload has been confirmed are stored in the analysis control unit 14 and read by the second number recognition device 5 constituting the photographing device unit 13 by the license plate of the vehicle 1. By comparing and confirming with the data of No. 1, it is necessary to avoid erroneous recognition after the vehicle has moved 20 m or more. In some cases, the vehicle may not be confirmed by the second number recognition device 5 due to a lane change or the like, and the violating vehicle recognized by the first number recognition device 4 is predicted from the traveling speed by the first vehicle detection unit. If the arrival time to the vehicle 9 is significantly delayed, the number of the unknown vehicle is deleted from the storage of the analysis control unit 14, and the storage of the analysis control unit 14 is reduced to the capacity or less, thereby preventing a malfunction due to an overcapacity or the like.

The first vehicle detection unit and the second vehicle detection unit 10
A third vehicle detecting unit 11 is disposed between the first vehicle detecting unit 9 and the third vehicle detecting unit 9 so as to keep a constant distance from the first vehicle detecting unit 9. 14 to calculate the vehicle speed and determine whether or not the speed limit has been violated.

For measuring the vehicle speed, the measuring device 7
The vehicle speed can also be calculated by the analysis control unit 14 by determining the interval between the vehicle detection sensors 15a and 15b constituting the above.

The analysis control unit 14 determines the violation of the loaded weight of the running vehicle, the first vehicle detection unit 9 confirms the violating vehicle, or the vehicle 1 for which the analysis control unit 14 determines that the speed limit has been violated is the second vehicle. In response to traveling to the position of the detection unit 10, the analysis control unit 14 outputs an operation signal to the offending vehicle photographing camera 12 to photograph the offending vehicle. At this time, data of the analysis control unit 14 is also attached.

[0032]

As described above, the overload control device according to the present invention can automatically control a vehicle violating the load or a speed limit vehicle. It is no longer necessary to consider health hazards resulting from the enforcement of the law. In addition, the effect of alerting the driver can be expected by always being provided on the main road as equipment.

In addition, the overload control device has a possibility of erroneous photographing or the like in the past. However, by confirming a violating vehicle at the time of measurement or photographing, there is an effect that there is no fear of erroneous recognition. .

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of an overload control device according to the present invention.

FIG. 2 is a view showing an embodiment of an overload control device according to the present invention arranged on a road.

[Explanation of symbols]

 4 to 1st number recognition device 5 to 2nd number recognition device 7 to measurement device unit 9 to 1st vehicle detection unit 10 to 2nd vehicle detection unit 11 to 3rd vehicle detection unit 12 to violation vehicle photography Camera 13-Photographing unit 14-Analysis control unit 16-Weight detection sensor

Claims (7)

[Claims] 1. A vehicle discriminating device for detecting and discriminating an individual vehicle traveling at a predetermined position on a road, a first number recognizing device for reading a license plate of a vehicle detected and discriminated by the vehicle discriminating device, and an axle. A measuring device unit having a weight sensor unit for measuring the weight or wheel load, and a first and second vehicle detecting unit, which is installed at least 20 m behind the measuring device unit and detects a leading portion of each individual vehicle, A second number recognition device that reads the license plate of the vehicle when the first vehicle detection unit detects the leading portion of the vehicle, and when the second vehicle detection unit detects a vehicle identified as being in violation of the load weight. A photographing device unit having a vehicle for photographing a license plate of the vehicle and a driver's face for photographing a driver's face, storing and analyzing data obtained from the measuring device unit, and loading the data; An overload control device, comprising: a violating vehicle photographing unit having an analysis control unit for specifying a heavy illegal driving and controlling the photographing operation of the violating vehicle photographing camera. 2. The overload control device according to claim 1, wherein a weight detection sensor serving as a weight sensor and a vehicle discriminating device are alternately arranged in the axle traveling direction, and the whole is separated at a predetermined interval within 4 m. Thereby, it is possible to determine each individual vehicle and measure the axle load or wheel load and the vehicle speed, and until the offending vehicle whose license plate is read by the first number recognition device reaches the first vehicle detection unit. The predicted arrival time is calculated by the analysis control unit, and if the violating vehicle does not reach the first vehicle detection unit even after greatly exceeding the predicted arrival time, the license plate of the violated vehicle stored in the analysis control unit Overload control device characterized by erasing the number of the overload. 3. A vehicle according to claim 1, wherein the first number recognition device constituting the measuring device portion and the second number recognition device constituting the photographing device portion confirm the vehicle by reading the same vehicle number. The overload control apparatus according to claim 1, wherein 4. The overload control device according to claim 1, wherein the analysis control unit detects the same vehicle among the axle loads or wheel loads detected by the weight sensor unit. The overload control device is characterized in that it is possible to detect the axle weight of each vehicle, the number of axles, the total weight of the vehicles, the distance between the axles, etc. 5. The analysis control unit identifies a vehicle having a violation of the load weight from a signal input from the measurement device unit, and recognizes the vehicle having a violation of the load weight from a signal input from the second number recognition device. 5. A photographing signal is output to a violating vehicle photographing camera by receiving a detecting signal of a violating vehicle from a second vehicle detecting section which determines a photographing fixed position. Overload control equipment. 6. A third vehicle detection unit is provided between a first vehicle detection unit and a second vehicle detection unit that constitute a photographing device unit,
The overload control device according to claim 11, wherein the traveling speed can be detected from a vehicle detection signal detected by the first and third vehicle detection units. 7. The distance between the first vehicle detection unit and the second vehicle detection unit is set to 4 m or less, and the vehicle that violates the overloaded weight detected and confirmed by the first vehicle detection unit is detected by the second vehicle detection unit. An overload control device characterized in that it is detected without misidentification by a part.