JP3367873B2 - Automatic toll collection system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic toll collection system applied to toll collection on toll roads.

[0002]

2. Description of the Related Art As an automatic toll collection device applied to toll collection on toll roads, the present applicant previously filed Japanese Patent Application No. 6-3.
According to Japanese Patent Laid-Open No. 8-161557, a receiving unit (front panel) and a moving vehicle move vertically in accordance with the height of a driver's seat of a passing vehicle. Accordingly, we applied for an automatic toll collection device that can move forward and backward. Moreover, the applicant of the present invention is
In No. 36859, the height of the driver's cab of the passing vehicle is determined based on the side surface transmission pattern of the vehicle by the optical vehicle detector and the tire position information by the tread, and the collection unit of the automatic toll collection device is set to the driver's cab height. I applied for an automatic toll collection system that controls in conjunction with the above.

FIG. 9 shows the configuration of an automatic fee collection system that combines the contents of the above two applications. In FIG. 9, 1 and 2 are the light emitting side and the light receiving side of the vehicle detector.
The optical screen 5 is stretched in the vertical direction, and the vehicle 6 detects the transmission pattern blocking the optical screen 5.

A tread plate 7 detects vehicle type classification information such as the number of axles, the number of wheels, and the tread of the passing vehicle 6. Reference numeral 8 denotes a vehicle information processing device, which encodes information on a vehicle type and a driver's height of each passing vehicle from the transmission pattern of the vehicle 6 and vehicle type classification information, and stores the information in the entry order of the vehicle. When the approach road is long, a plurality of memories are provided.

Reference numeral 9 is an automatic toll collection device, and 10 is a toll collection unit (front panel) which is one of its components. Although not shown, banknotes, coins, processing ports for various cards, change and receipt processing ports for user operation, a charge indicator, operation buttons and the like are arranged.

The automatic toll collection device 9 controls the toll collection unit 10 to move vertically according to the vehicle type and the cab height code of the vehicle information processing device 8. Further, a vehicle width-adjustment sensor 11 arranged below the toll collection unit 10
It is a system for measuring the approaching vehicle width by a and 11b, moving the toll collection unit in the front-back direction accordingly, and controlling the movement of the toll collection unit to a position where the user can easily operate the front panel. ing.

[0007]

In the above-described conventional automatic fee collection system, if the control timing of the fee collection unit 10 is the vertical direction, there is no problem even if the movement starts from the time when the vehicle type information is determined, but the forward and backward directions. In this case, if the toll collection unit 10 is moved while the vehicle 6 is moving, a safety problem will occur. For example, there is a risk that the fee collection unit 10 collides with a protrusion such as a fender mirror or a door mirror on the side of the vehicle.

The conventional width-shifting sensors 11a and 11b are also provided.
Although no specific example of the detection method is disclosed, an ultrasonic displacement meter or a laser displacement meter is assumed. This detection method using an ultrasonic displacement meter or a laser displacement meter has problems such as detection of protrusions such as fender mirrors and door mirrors other than the vehicle body depending on the measurement position, and poor reliability of measured values.

The present invention has been made in order to solve the above problems, and can reliably detect the entry position of a vehicle, and can also adjust the vehicle's width-shifting position without being affected by protrusions such as fender mirrors and door mirrors. It is an object of the present invention to provide an automatic toll collection system that can be reliably detected and that can control movement of a collection unit in a vertical direction and a front-back direction at an accurate position at a safe timing.

[0010]

An automatic toll collection system according to claim 1 of the present invention is an automatic toll for controlling movement of a toll collection unit provided in an automatic toll collection device in the front-rear direction according to the width of a vehicle. Vehicle entry in the collection system
A vehicle detector for detecting a vehicle approaching the road, provided on the vehicle entry side of the front face of the electronic toll collection system, the vehicle detection
It operates by the vehicle detection signal from the output device and measures the distance to the vehicle.
A width-shifting sensor for detecting and a vehicle passage sensor for detecting the presence of the vehicle, which is provided on the vehicle start side of the automatic toll collection device.
And the value detected by the width adjustment sensor
Vehicle passing signal detected by the vehicle passing sensor
Minimum value hold time to detect and output the minimum value at the rising edge of
Path and the value output from the minimum value hold circuit.
And move the toll collection unit forward and between the vehicle
Stop at the position where the distance is optimal,
After a series of processing in the above, or the vehicle passage sensor
At the fall of the vehicle passage signal detected by
Toll collection unit that moves the receiving unit backward to the normal position
And driving means .

An automatic fee collection system according to claim 2 of the present invention is a fee collection unit provided in an automatic fee collection device.
Automatic control to move the front and back according to the width of the vehicle
Vehicles entering the vehicle approach path in the toll collection system
And a vehicle detector for detecting the vehicle, which is provided on the vehicle entrance side and the vehicle start side of the front of the automatic toll collection device.
It operates by the vehicle detection signal from the detector and detects the distance to the vehicle.
First and second transversely shifting sensors for output, said second paper side
Above the road surface, which is slightly ahead of the sensor
A vehicle passage sensor that is provided to detect the presence of a vehicle from above.
And the first and second width-shifting sensors
Value is read and detected by the vehicle passage sensor
First to detect and output the minimum value at the rising edge of the vehicle passage signal
And a second minimum value holding circuit, and the first and second minimum value holding circuits.
Depending on the application, the value output from the minimum value hold circuit
And the arithmetic circuit that selects the average or minimum value
The toll collection unit is moved forward based on the road output value.
The vehicle and stop at a position where the distance from the vehicle is optimal,
After or before the series of processing in the gold collection unit
The trailing edge of the vehicle passage signal detected by the vehicle passage sensor
Move the toll collection unit backwards to the steady position with a gull.
And a charge collection unit driving means . The automatic fee collection system according to claim 3 of the present invention is
The target of the width adjustment sensor is set at the bottom of the vehicle.
And are characterized .

According to a fourth aspect of the present invention, in the automatic toll collection system, two vehicle passage sensors are provided and arranged in a column.
It is characterized in that the detected value is taken out through an OR circuit . An automatic toll collection system according to claim 5 of the present invention comprises a toll collection unit provided in an automatic toll collection device.
Automatic fee to control the movement in the front-back direction according to the width of the vehicle
In the collection system, the vehicle entering the vehicle approach path is detected.
The vehicle detector to be output and the front side of the automatic toll collection device provided on the vehicle entrance side and the vehicle start side, and
It operates by the vehicle detection signal from the above and detects the distance to the vehicle.
First and second transversely shifting sensor that, the second transversely shifting cell
It is buried on the road surface that is slightly ahead of the vehicle
Detection of vehicle passage using electromagnetic induction of loop coil
Vehicle passage sensor, and the first and second width-shifting sensors
Read the value detected by the
The minimum value is detected at the rising edge of the vehicle passage signal detected by
First and second minimum value holding circuits for outputting
The value output from the first and second minimum value hold circuits
On the other hand, an arithmetic circuit that selects the average value or the minimum value according to the application
And the charge collection unit based on the output value of this arithmetic circuit.
At the position where the distance between the
Stop and end a series of processing in the toll collection unit
Vehicle detected after or by the vehicle passage sensor
When the passing signal falls, the toll collection unit is in the normal position.
And a charge collection unit driving means for moving the vehicle backward .

An automatic fee collection system according to claim 6 of the present invention is a fee collection unit provided in an automatic fee collection device.
Automatic control to move the front and back according to the width of the vehicle
In the toll collection system, the vehicle of the automatic toll collection device
Tire position detection provided on the road surface corresponding to both starting sides
An intelligent tread and the presence of a vehicle installed above the tread
Vehicle passage sensor that detects the vehicle from above, and the detection of the tread
Tire position detection time to detect the vehicle tire position from the signal
Detect the forward and backward movement of the vehicle from the road and the detection signal of the tread
Forward / reverse detection circuit, the forward / reverse detection circuit, and
Based on the detection signal of the vehicle passage sensor, the toll collection unit
A logic circuit that outputs a forward signal or a reverse signal, and
Based on the detection signals of the ear position detection circuit and logic circuit
Set the toll collection unit to the position where the distance from the vehicle is optimal.
Charge collection to move forward with or to reverse to a steady position
And unit driving means .

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 (a) is a front view of an automatic toll collection device portion showing a configuration of an automatic toll collection system according to a first embodiment of the present invention, and FIG. 1 (b) is a plan view of the same. 2 is a block diagram showing a configuration of a signal processing circuit in the same embodiment.

In FIGS. 1 (a) and 1 (b), reference numeral 4 is a vehicle approach path, and 6 is a vehicle. 9 is an automatic toll collection device,
Reference numeral 10 is a toll collection unit that serves as an interface with the driver of the vehicle 6.

On the panel of the fee collection unit 10,
Equipped with passports, banknotes, coupons, various card processing ports, change, receipt processing ports, and other indicators and keys necessary for operation, which are not related to the present invention. It is omitted because it is a part.

Like the conventional system, the toll collection unit 10 is provided with a mechanism capable of moving in the vertical direction and the front-back direction according to the vehicle type (the height of the driver's cab) of the entering vehicle 6 and the approaching distance.

On the front surface of the automatic fee collection device 9, a width-shift sensor 11 and a vehicle passage sensor 12 are provided. As the width-shift sensor 11 and the vehicle passage sensor 12, for example, an ultrasonic sensor is used, but a laser sensor may be used and the method is not particularly limited. The width-shift sensor 11 uses a sensor having a sharp directional angle, and the vehicle passage sensor 12 uses a sensor having a wide characteristic. In FIG. 1, a two-dot chain line indicates qualitative directivity.

Further, the arrangement of the width-shift sensor 11 and the vehicle passage sensor 12 is such that the width-shift sensor 11 is on the front side (right in the figure) and the vehicle passage sensor 12 is on the rear side (see the figure) with respect to the approach direction (arrow) of the vehicle 6. In the left), and in the up-down direction, the width-shift sensor 11 is arranged below the hood of the vehicle 6 or the window of the driver's seat, at the tire center height of all vehicle types. This is to avoid detection of protrusions such as fender mirrors and door mirrors (hereinafter simply referred to as mirrors). On the other hand, since the vehicle passage sensor 12 has a wide directional angle,
It should be high enough that all car types can be seen.

The width-shifting sensor 11 measures the width-shifting distance from the vehicle 6, and the vehicle passage sensor 12 detects the presence (approach, start) of the vehicle 6 within the sensor field of view. The transmitted wave is output, the reflected wave is detected, the displacement with respect to the object is detected by the time difference, and the presence is detected by the presence or absence thereof.

Others have the same system configuration as the automatic fee collection system shown in FIG. Next, referring to FIG. 2, a signal processing circuit for processing the signals of the width-shifting sensor 11 and the vehicle passage sensor 12 to drive and control the toll collection unit 10 will be described.

In FIG. 2, 13 is a transmitter / receiver of the width-shift sensor 11, and 14 is a transmitter / receiver of the vehicle passage sensor 12. The transmitter / receiver 13 outputs the displacement data to the minimum value hold circuit 15 every time the reflected wave is received, and the transmitter / receiver 14 raises the bit output while the reflected wave is received. That is, the transmitter / receiver 14 outputs a high level signal while the reflected wave is being received, and inputs it to the minimum value hold circuit 15 as a vehicle passage signal.

The minimum value hold circuit 15 is used in the transmitter / receiver 1.
The displacement data sent from the controller 3 is read, the minimum value of the width adjustment is detected at the rise of the vehicle passage signal output from the transmitter / receiver 14, and is input to the motor control circuit 16. The motor control circuit 16 drives the toll collection unit drive motor 17 based on the minimum value of the width adjustment detected by the minimum value hold circuit 15.

The minimum value hold circuit 15 is reset at the trailing edge of the vehicle passing signal output from the transmitter / receiver 14, but restarts the measurement if the next vehicle enters.
After the toll collection process is completed, the backward movement of the toll collection unit 10 is driven by the end signal of a series of processes in the toll collection unit 10 or the trailing edge of the vehicle passing signal of the transmitter / receiver 14.

Next, the operation of the above embodiment will be described. Figure 9
As shown in FIG. 5, when the driver driving the vehicle 6 enters the vehicle entry path 4 of the toll gate, the driver passes through the portion where the vehicle detector is installed and is provided in the automatic toll collection device 9. The vehicle 6 is stopped in front of the toll collection unit 10.

On the other hand, the automatic toll collection system at the tollgate is
When the vehicle 6 enters the vehicle approach path 4 and is detected by the vehicle detector, the vehicle information processing device 8 operates, and the vehicle type and the driver's cab for each passing vehicle from the transmission pattern of the approaching vehicle 6 and the vehicle type classification information. The height information is coded and stored in the entry order of the vehicle, and the discrimination information is output to the automatic fee collection device 9. The automatic toll collection device 9 controls the collection unit to move vertically according to the vehicle type and the cab height code of the vehicle information processing device 8 and stops at the optimum position.

Further, when the approaching vehicle 6 is detected by the vehicle detector, the signal from the signal processing circuit is sent by the detection signal.
The receiver 13 is activated. The transmitter / receiver 13 cyclically outputs a transmitted wave via the width-shift sensor 11, detects the reflected wave, and holds the displacement data at a minimum value hold circuit each time the reflected wave from the vehicle 6 is received. Output to 15.

Therefore, the front part of the vehicle 6 is provided with the width-shift sensor 11.
When the vehicle passes the front of the vehicle and reaches the area (two-dot chain line) of the vehicle passage sensor 12, the reflected wave from the vehicle 6 detected by the width-shift sensor 11 is sufficiently sampled by the minimum value hold circuit 15. The minimum value of width adjustment is detected at the rising edge of the vehicle passage signal output from the transmitter / receiver 14, and is sent to the motor control circuit 16. The motor control circuit 16 drives the toll collection unit drive motor 17 on the basis of the minimum value of the width adjustment detected by the minimum value hold circuit 15 to move the toll collection unit 10 to the front, and the vehicle 6
Stop at a position where the interval between and is optimal.

The driver who is driving the vehicle 6 inserts a ticket into the toll collection unit 10 stopped to the side of the driver's seat, pays bills by bills, coins, coupons or various cards, and makes a change. The vehicle 6 is started after receiving the receipt of the toll collection unit 10 and receiving the receipt issued by the toll collection unit 10.

Further, the motor control circuit 16 causes the toll collection unit 10 to move backward when the series of processes in the toll collection unit 10 is completed, or at the fall of the vehicle passage signal output from the transmitter / receiver 14, and then becomes stationary. Return to the position and prepare for the next approaching vehicle.

According to the first embodiment, the motor control circuit 16 drives the toll collection unit drive motor 17 based on the width-shifted data sent from the minimum value hold circuit 15.
The time when the vehicle 6 is started is the point where the vehicle 6 just stops in front of the toll collection unit 10. Therefore, after the vehicle 6 has completely entered the vehicle entry path 4, or when the vehicle 6 has almost completely entered. Then, the toll collection unit 10 is controlled to move forward based on the width-shifted data of the vehicle 6, and it is possible to avoid a collision between the vehicle 6 and the toll collection unit 10 that is moving. Further, since the directivity of the width-shift sensor 11 is sharpened and the lower part of the vehicle body is targeted, it is possible to avoid the inconvenience of detecting a mirror or the like projecting laterally from the vehicle 6,
It is possible to improve the accuracy of shifting the charge collection unit 10. Further, since the directivity of the vehicle passage sensor 12 is widened, there is an effect that the reception of the reflected wave due to the shape of the vehicle body is made more reliable, and even if the vehicle body such as the trailer is partially discontinued, it is counted as two vehicles. Without, it is possible to accurately detect the number of passing vehicles.

(Second Embodiment) FIG. 3 (a) is a front view of an automatic toll collection device portion showing the configuration of an automatic toll collection system according to the second embodiment of the present invention, and FIG. 3 (b) is the same plane. FIG. 3C is a side view of the same, and FIG. 4 is a block diagram showing a configuration of a signal processing circuit in the same embodiment. The same parts as those in the first embodiment are designated by the same reference numerals, and different parts from the first embodiment will be described.

Two width-shifting sensors 11a and 11b are symmetrically arranged on the front surface of the automatic toll collection device 9. One of the width-shifting sensors 11a is provided on the entry side of the vehicle 6, and the other of the width-shifting sensors 11b is provided on the starting side of the vehicle 6. The mounting heights of the width-shifting sensors 11a and 11b are the same as in the case of the first embodiment, and the measurement target is near the tire under the vehicle body.

Further, as shown in FIGS. 3B and 3C, for example, an ultrasonic type vehicle passage sensor 18 is installed at a position overlooking the vehicle 6 from above the vehicle approach path 4. In this case, the vehicle passage sensor 18 is supported at a predetermined height position by a support pillar or the like. The vehicle passage sensor 18 is provided on the starting side of the vehicle 6 when viewed from the vehicle approach direction (arrow), and the width adjustment sensor 11 is provided.
It should be a little closer to the starting side (to the left in the figure) than the front of b.

Then, the signal processing circuit, as shown in FIG. 4, sends / receives signals to / from the width-shifting sensors 11a and 11b.
a and 13b are connected, and the output signals of the transmitter / receivers 13a and 13b are input to the minimum value hold circuits 15a and 15b. The minimum value hold circuits 15a and 15b read the displacement data sent from the transmitter / receivers 13a and 13b, and detect the minimum value of the width adjustment at the rising edge of the vehicle passage signal output from the transmitter / receiver 14. , To the arithmetic circuit 19. The arithmetic circuit 19 includes a minimum value hold circuit 15
With respect to the minimum value of the width adjustment sent from a and 15b, the average value is processed or the minimum value is selected according to the application, and the result is input to the motor control circuit 16. This motor control circuit 16
Based on the data input from the arithmetic circuit 19, the first
The toll collection unit drive motor 17 is driven and controlled at the same control timing as in the embodiment.

The vehicle passage sensor 18 detects passage of the vehicle 6 by using the difference in propagation time of reflected waves between the road surface and the vehicle body as a threshold. In this case, the directional angle of the vehicle passage sensor 18 is narrowed slightly sharply so as not to be affected by diffused reflection of the automatic toll collection device 9 in the vicinity.

Therefore, if two trailers are to be detected, two vehicle passage sensors 18a and 18b are arranged in series as shown in FIG. 3 (b), and the detected values are taken out via an OR circuit. With such a configuration, it is possible to correctly detect even the trailer.

According to the second embodiment, as in the first embodiment, after the vehicle 6 has completely entered the vehicle entry path 4, or when the vehicle 6 has almost completely entered,
The toll collection unit 10 is based on the widthwise data of the vehicle 6.
Since the movement control is started, it is possible to avoid a collision between the vehicle 6 and the moving fee collection unit 10.

Further, since the two width-shifting sensors 11a and 11b are arranged on the front surface of the automatic toll collection device 9, the width-shifting can be detected more accurately even when the vehicle 6 enters obliquely. The control accuracy of the toll collection unit 10 can be improved.

In the above system, the arrangement of the width-shift sensor 11a and the vehicle passage sensor 18a allows the first sensor
It is also possible to configure a system similar to the embodiment. (Third Embodiment) FIG. 5 is a plan view of an automatic fee collection device portion showing a configuration of an automatic fee collection system according to a third embodiment of the present invention.

In the third embodiment, instead of the vehicle passage sensor 18 in the second embodiment, a loop coil 20 is embedded in the vehicle approach path 4. The loop coil 20 is located closer to the starting side (to the left in the figure) than the front of the width-shift sensor 11b on the starting side of the vehicle when viewed from the vehicle approach direction (arrow).

Using electromagnetic induction between the loop coil 20 and the vehicle body (metal), the passage of the vehicle 6 is detected by the change in the inductance of the coil. The signal processing circuit has the same configuration as that shown in FIG. 4 shown in the second embodiment, and therefore will be omitted. Also in the third embodiment, the same effect as in the second embodiment can be obtained.

(Fourth Embodiment) FIG. 6 is a plan view of an automatic toll collection device portion showing a configuration of an automatic toll collection system according to a fourth embodiment of the present invention. FIG. 7 is a resistance-type contact which is a tire position sensor. FIG. 8 is a block diagram showing the configuration of a signal processing circuit, which is a principle diagram of the body.

In the fourth embodiment, a tire position detecting type tread plate 21 is used as a vehicle width adjustment sensor. The tread 21 is embedded in the front of the automatic toll collection device 9 in the vehicle approach path 4 closer to the starting side (left side in the figure) with respect to the vehicle traveling direction (arrow) so as to be orthogonal to the vehicle traveling direction. The tread plate 21 has a configuration in which a strip-shaped resistance contact body 22 that can detect at least the stepped position of the tire and a strip-shaped flat contact body 23 that only detects whether or not the tire has stepped are arranged in parallel.

Since the tread 21 is an axial position sensor in principle, it is connected to the vehicle passage sensor 18 of, for example, the ultrasonic type shown in the second embodiment in order to identify each passing vehicle. The installation position of this vehicle passage sensor 18 is shown in FIG.
As shown in, the center of the tread 21 is almost overlapped.

FIG. 7 shows the tire position detecting type tread 21.
The principle diagram of is shown. As shown in FIG. 7, the tread plate 21 has two strip-shaped electrodes, that is, an upper electrode S and a lower electrode R, which are opposed to each other with a slight gap. The upper electrode S has a spring property and is deformed by the tire pressure p to detect the contact between the upper and lower electrodes S and R. When the lower electrode R is used as a resistor and a constant current i is applied, the voltage ΔV generated in the upper electrode S when the tire is stepped is proportional to the resistance value r at the stepped position. = Ir ”can be detected.

FIG. 8 shows a signal processing circuit according to the fourth embodiment. Resistance type contact body 22 of tread 21
The detection signal of is input to the tire position detection circuit 24. The tire position detection circuit 24 is provided in the resistance type contact body 22.
The tire position is detected by the resistance value r when the tire is stepped on and the constant current i, and the detection signal is converted into a digital signal by the A / D conversion circuit 25 and input to the motor control circuit 16.

A detection signal from the flat contact body 23 of the tread 21 is input to the forward / reverse detection circuit 26. Further, the tire position signal detected by the tire position detecting circuit 24 is input to the forward / reverse detecting circuit 26. The forward / reverse detection circuit 26 detects forward / reverse of each axis of the vehicle based on the signal detection order of the resistance contact 22 and the flat contact 23.
The forward movement detection signal f and the backward movement detection signal b are input to the logic circuit 27. The forward / reverse detection circuit 26 is the resistance type contact body 22.
The forward contact detection signal f is output when the detection order by the flat contact point 23 is “22 → 23”, and the reverse travel detection signal b is output when the detection order is “22 ← 23”. Further, a vehicle passage signal detected by the vehicle passage sensor 18 and the transmitter / receiver 14 is input to the logic circuit 27.

The logic circuit 27 causes the motor control circuit 16 to make a logical determination between the forward / reverse signals f and b detected by the forward / reverse detection circuit 26 and the vehicle passage signal input from the transmitter / receiver 14. The following receiving unit forward signal F1 and receiving unit backward signal F2 are output.

F1 = p * f1 (forward movement of the first axis) F2 = p * fn (forward movement of the final axis) In the logic circuit 27, the vehicle moves backward midway or reverses after passing once ("B = p"). * (B1 + b2 + b
n) ”can also be detected. Such a state is a case where abnormal processing of the entire system is required, and by sending the reverse signal B to the host CPU on the side of the automatic fee collection device 9, it is possible to take appropriate measures.

For example,     Reverse after normal processing → Alarm, system lock (prevention of unauthorized use)     No processing-reverse processing after overrun → reprocessing     Halfway backward → Reprocessing And so on.

According to the fourth embodiment, the same effect as that of the first embodiment can be obtained. Further, the width-shift measurement value is determined by the tire position on the first axis of the vehicle, and therefore, there is an advantage that even if the vehicle makes an oblique approach or a meandering approach, it is not affected by the progress of the process.

[0053]

As described above in detail, according to the present invention, in the automatic toll collection system for controlling the movement of the toll collection unit in the front-rear direction in accordance with the lateral alignment of the vehicle, the lateral alignment sensor for detecting the distance from the vehicle. Is provided on the front side of the toll collection unit on the vehicle entrance side, and the vehicle passage sensor for detecting the presence of the vehicle is provided on the vehicle start side of the toll collection unit, so that the vehicle can reliably enter the vehicle entry path at the toll gate. After that, or when the approach of the vehicle is almost completed, the receiving unit can be controlled to move forward based on the vehicle width adjustment data, and the collision between the vehicle and the moving receiving unit can be avoided. You can In addition, the target of the width adjustment sensor is the lower part of the vehicle body, and the distance data is processed with the minimum value.Therefore, there is no fear of detecting mirrors protruding laterally from the vehicle, and the width adjustment accuracy of the receiving unit can be improved. Can be improved. In addition, the width adjustment sensor that detects the distance to the vehicle is additionally provided not only on the vehicle entry side of the front of the toll collection unit but also on the vehicle start side, so that the width adjustment can be accurately performed even when the vehicle enters diagonally. Therefore, it is possible to further improve the accuracy of width adjustment of the receiving unit.

Further, the vehicle passage sensor is a tire position detecting type tread provided near the vehicle starting side of the toll collection unit, so that the influence of the progress of the vehicle even when the vehicle enters obliquely or meanders. Therefore, the receiving unit can be reliably moved to the other side. Also,
By detecting the vehicle using the treads, it is possible to determine whether the vehicle is moving forward or backward, and even when the vehicle moves backward, appropriate measures such as fraud prevention can be taken.

[Brief description of drawings]

FIG. 1A is a front view of an automatic toll collection device portion showing a configuration of an automatic toll collection system according to a first embodiment of the present invention, and FIG.

FIG. 2 is a block diagram showing a configuration of a signal processing circuit according to the same embodiment.

3A is a front view of an automatic toll collection device portion according to a second embodiment of the present invention, FIG. 3B is a plan view thereof, and FIG. 3C is a side view thereof.

FIG. 4 is a block diagram showing a configuration of a signal processing circuit according to the same embodiment.

FIG. 5 is a plan view of an automatic fee collection device portion according to a third embodiment of the present invention.

FIG. 6 is a plan view of an automatic fee collection device portion according to a fourth embodiment of the present invention.

FIG. 7 is a principle diagram of a tire position detection type tread plate in the same embodiment.

FIG. 8 is a block diagram showing a configuration of a signal processing circuit according to the same embodiment.

FIG. 9 is a configuration diagram of an automatic fee collection system to which the present invention is applied.

[Explanation of symbols]

1, 2 Vehicle detector light emitting side and light receiving side 3 Photoelectric switch group 4 vehicle approach 5 optical screen 6 vehicles 7 treads 8 Vehicle information processing equipment 9 Automatic toll collection device 10 Toll collection unit 11, 11a, 11b Width sensor 12 Vehicle passage sensor 13 transmitter / receiver 14 transmitter / receiver 15 Minimum value hold circuit 16 Motor control circuit 17 Toll collection unit drive motor 18 Vehicle passing sensor 19 arithmetic circuit 20 loop coil 21 treads 22 Resistance type contact body 23 Flat contact body 24 Tire position detection circuit 25 A / D conversion circuit 26 Forward / reverse detection circuit 27 logic circuits

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-8-161557 (JP, A) JP-A-7-134799 (JP, A) JP-A-5-217040 (JP, A) Actual Kaihei 6- 81054 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G08G 1/04 G07B 15/00 G07D 9/00

Claims (6)

(57) [Claims] 1. An automatic toll collection system for controlling the movement of a toll collection unit provided in an automatic toll collection device in the front-rear direction according to the width of a vehicle, and a vehicle detector for detecting a vehicle entering an entry path of a vehicle. , provided on the vehicle entry side of the front face of the electronic toll collection system, before
The vehicle detection signal from the vehicle detector operates to
And a vehicle for detecting the presence of the vehicle, which is provided on the vehicle start side of the automatic toll collection device and which detects the distance of the vehicle.
The value detected by the passage sensor and the width-shift sensor is
The vehicle traffic detected by the vehicle passage sensor is read.
Minimum value ho which detects and outputs the minimum value at the rising edge of the over signal
Field and the value output from the minimum value hold circuit
The vehicle by moving the toll collection unit forward based on
Stop at a position where the interval between
After a series of processing in the
At the fall of the vehicle passage signal detected by the sensor,
A toll collection unit that moves the toll collection unit back to the normal position.
An automatic toll collection system comprising a knit driving means . 2. A toll collection device provided in an automatic toll collection device
The unit is controlled to move forward and backward according to the width of the vehicle.
In the automatic toll collection system, the vehicle detector that detects the vehicle entering the vehicle entry path,
The vehicle entrance side and vehicle start side in front of the automatic toll collection device
Is provided in the vehicle detection signal from the vehicle detector
First and second width adjustments that operate to detect the distance to the vehicle
A sensor and a way of advancing the vehicle a little than the second width-shift sensor
It is installed above the road surface that goes to the opposite side,
Vehicle passage sensor that detects more, and the first and second widths
Read the value detected by the displacement sensor and
Minimum rise of vehicle passage signal detected by over-sensor
First and second minimum value hold times for detecting and outputting a value
And output from the first and second minimum value holding circuits
Select the average value or the minimum value for the registered value according to the application.
Calculation circuit and the above-mentioned charge based on the output value of this calculation circuit.
Move the gold collection unit forward to optimize the distance from the vehicle.
Stop at the position where
After the processing of, or detected by the vehicle passage sensor
Toll collection unit at the fall of the vehicle passing signal
And a fee collection unit driving means for moving the vehicle to the normal position
An automatic toll collection system, which is equipped with: 3. The automatic toll collection system according to claim 1, wherein a target of the width-shifting sensor is set at a lower portion of a vehicle body. 4. The two vehicle passage sensors are provided in a column arrangement.
The automatic fee collection system according to claim 2, characterized in that the detected value is retrieved via an OR circuit . 5. A fee collection device provided in an automatic fee collection device
The unit is controlled to move forward and backward according to the width of the vehicle.
In the automatic toll collection system, the vehicle detector that detects the vehicle entering the vehicle entry path,
The vehicle entrance side and vehicle start side in front of the automatic toll collection device
Is provided in the vehicle detection signal from the vehicle detector
First and second width adjustments that operate to detect the distance to the vehicle
A sensor and a way of advancing the vehicle a little than the second width-shift sensor
It is buried in the road surface that goes to the opposite side and the electromagnetic induction of the loop coil
A vehicle passage sensor that detects the passage of a vehicle using
Read the values detected by the first and second width-shifting sensors
Vehicle passage detected by the vehicle passage sensor
First and second detecting and outputting the minimum value at the rising edge of the signal
Minimum value holding circuit and the first and second minimum value ho
Average value for the value output from the field circuit depending on the application
Or the arithmetic circuit that selects the minimum value and the output of this arithmetic circuit
Move the toll collection unit forward based on the value
Stop at a position where the distance between the two is optimal, and collect the charges.
After completion of a series of knitting processes or through the vehicle
In front of the trailing edge of the vehicle passage signal detected by the excess sensor
Toll collection to move the toll collection unit back to the normal position
An automatic toll collection system comprising unit driving means . 6. A toll collection device provided in an automatic toll collection device
The unit is controlled to move forward and backward according to the width of the vehicle.
In the automatic toll collection system, the road surface position corresponding to the vehicle start side of the automatic toll collection device
Tire position detection type tread provided on the tread
Passing the vehicle, which is installed on one side and detects the presence of the vehicle from above
The tire position of the vehicle is detected from the sensor and the detection signal of the tread.
Whether the tire position detection circuit to detect and the detection signal of the tread
A forward / reverse detection circuit for detecting the forward / backward movement of the vehicle,
For the detection signals of the forward / reverse detection circuit and the vehicle passage sensor
Based on the forward or backward signals of the toll collection unit based on
Force logic circuit, the tire position detection circuit and the logic circuit
The toll collection unit is connected to the vehicle based on the road detection signal.
Forward to a position where the
An automatic toll collection system , comprising: a toll collection unit driving means for moving the vehicle to the rear .