JP2012185530A - Tread board frame and toll collection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tread board frame capable of realizing an integrated management of vehicle specification information and axial load information without reducing accuracy in detecting pressing force and axial force of a vehicle.SOLUTION: A tread board frame 20, to fix a tread board 10 for detecting pressing force of a vehicle traveling on a passage for transit processing in a pay facility for the vehicle, comprises: a frame main body 21 which is embedded in the passage and capable of storing the tread board; and an axial load scale 24 which is installed at both edges of the frame main body 21 in a traveling direction of the vehicle and measures an axial load of the vehicle traveling on the passage.

Description

  The present invention relates to a tread frame for installing a tread board for detecting a pressing of a vehicle at a toll gate of a toll facility for vehicles such as a toll road and a parking lot, and a toll collection system including the tread.

  In recent years, ETC (Electronic Toll Collection System) has been introduced as a system for automating toll collection at toll gates such as toll roads and parking lots. This toll collection method by ETC obtains vehicle specific information of the vehicle by performing wireless communication between the IC card set in the vehicle-mounted device mounted on the vehicle and the antenna of the toll collection system installed at the toll gate The toll is collected.

  In the toll collection system, a toll passage is provided with a tread for detecting entry of a vehicle (see, for example, Patent Document 1). The tread is embedded in the passage, and a contact body provided therein is short-circuited to the vehicle by weight, thereby detecting the pressing of the vehicle. A pressing signal indicating the presence or absence of pressing is output to a lane server of the toll collection system, and the lane server performs vehicle entry detection and forward / backward detection based on the pressing signal.

In addition, a tread board that can detect a distance (tread) between left and right wheels in a vehicle is also known (see, for example, Patent Document 2).
Information based on the pressure of the vehicle detected by such a tread (hereinafter referred to as tread detection information) is linked to the vehicle specifying information acquired by the antenna by the lane server, and is used for smooth operation of the toll road. ing.

On the other hand, an axle weight meter is provided in front of the toll gate on the toll road separately from the toll collection system (see, for example, Patent Document 3). This axle weight meter measures the axle weight of a passing vehicle and determines the possibility of overloading for the purpose of road maintenance and the like.
Also known is a tread that can detect the axle weight of a vehicle with a pressure sensor such as a strain gauge and obtain tread detection information such as the number of axles of the vehicle, tread, and forward / reverse based on the detected axle weight information. (For example, refer to Patent Document 4).

Japanese Patent No. 2941650 JP-A 61-166688 JP 2008-039489 A Japanese Patent Application Laid-Open No. 07-225891

  By the way, in the current road traffic system, the tread board and the axle weight meter in the toll collection system are arranged with a certain distance in the vehicle traveling direction and managed separately. Therefore, for example, when vehicle axle load information is to be managed collectively by the toll collection system, the vehicle specific information acquired by the antenna and the axle load information acquired by the axle load meter can be linked to be integrated. There was a problem that it was difficult.

  That is, for example, if the preceding vehicle once passes through the axle weight meter and then moves backward and moves to another lane, the vehicle identification information of the following vehicle acquired by the antenna may be associated with the axle weight information of the preceding vehicle. There is. In addition, in the case of a vehicle having a large number of axes and a long vehicle length such as a large trailer, the axle load information of the last wheel may be associated with the vehicle identification information of the following vehicle. Therefore, there is a possibility that it is erroneously specified which vehicle is likely to be overloaded, and it is difficult to perform unified management by associating the vehicle specifying information with the axle weight meter.

  Here, for example, in the case of a tread that can also detect vehicle axle load information, such as the tread described in Patent Document 4, unified management of the axle load information and vehicle specifying information acquired by the antenna is performed. It can also be done.

However, the tread described in Patent Document 4 has a drawback in that reliability and life are insufficient because the processing is complicated compared to a tread including a contact body as described in Patent Document 1, for example. In addition, since the tread described in Patent Document 4 is not supposed to detect overloading in the first place, when excessive axle load acts from the vehicle, there is a possibility that the axle load cannot be measured appropriately. .
Therefore, in the tread described in Patent Document 4, there is a problem in that it is not possible to detect the vehicle pressure with high reliability while ensuring the overload determination with as much axle load measurement accuracy as possible.

  The present invention has been made in view of the above-described problems, and it is possible to realize unified management of vehicle specifying information and axle load information without reducing the accuracy of detecting the pressure of the vehicle and the axle load. An object is to provide a tread frame and a toll collection system.

In order to achieve the above object, the present invention employs the following means.
That is, the tread frame according to the present invention is a tread frame for installing in the passage a tread that detects the pressure of a vehicle traveling in a passage for passage processing of a toll facility for vehicles, and is embedded in the passage. A frame main body capable of accommodating the tread, and an axle weight meter that is provided integrally with at least one of both ends of the frame main body in the vehicle traveling direction and measures the axial weight of the vehicle traveling in the passage. It is a feature.

  According to the footboard frame having such a feature, the footboard and the axle load meter are integrated with each other, while the foot board for detecting the pressure of the vehicle and the axle weight meter for detecting the axle weight of the vehicle are configured separately. Can be arranged. Thereby, a tread board and a shaft weight meter can be continuously passed through a vehicle traveling in a passage.

  Further, in the tread frame according to the present invention, the frame main body includes a bottom plate portion laid on the bottom surface of the recess formed in the passage, and rises from both ends of the bottom plate portion in the vehicle traveling direction with respect to the tread. A pair of end plate portions abutting from both sides, and the axle load scale includes a pressure receiving plate portion projecting from the upper end of at least one of the pair of end plate portions to the outside of the tread frame, and the pressure receiving plate portion. It is preferable to have a load detecting element that is provided and detects a load acting downward on the pressure receiving plate portion.

  Since the tread frame is composed of the bottom plate and the end plate, the tread can be firmly fixed to the passage. Moreover, the load of the vehicle acting on the pressure receiving plate provided integrally with the end plate of the frame body is detected by the load detection element, so that the axle load of the vehicle can be easily detected. In this way, the tread plate and the axle weight meter are integrally provided on the tread frame, so that the tread plate and the axle weight meter can be continuously passed through the vehicle traveling in the passage.

In the tread frame according to the present invention, it is preferable that the pressure receiving plate portion is displaceable downward, and the load detecting element is a strain gauge.
As a result, the axle load of the vehicle can be reliably detected by the axle weight meter provided integrally with the frame body.

Furthermore, in the tread frame according to the present invention, it is preferable that a slit extending in the width direction of the passage is formed in the pressure receiving plate portion.
Accordingly, the pressure receiving plate provided integrally with the rigid frame body for fixing the tread plate can be easily deformed downward. That is, by forming a slit in the pressure receiving plate portion, the rigidity of the slit can be reduced. Therefore, it is possible to more reliably measure the load with the strain gauge.

Moreover, in the tread frame according to the present invention, it is preferable that the axle load scale has an elastic material that contacts a lower surface of the pressure receiving plate portion.
Here, for example, when a space is provided below the pressure receiving plate portion so as to allow a downward displacement of the pressure receiving plate portion, rainwater, dust, and the like accumulate in the space, which is preferable from the viewpoint of maintenance. Absent. On the other hand, in the present invention, when a load is applied to the pressure receiving plate portion in the downward direction, the elastic material is elastically deformed to allow the pressure receiving plate portion to be displaced downward. There is no need to provide a space below the. Therefore, maintainability can be improved. Moreover, since the said elastic material relieve | moderates the impact by the load which acts on a pressure receiving plate part, the impact resistance of a pressure receiving plate part can be improved.

Furthermore, in the tread frame according to the present invention, it is preferable that the axle weight meter has a block material provided on an upper surface of the pressure receiving plate portion.
When the traveling vehicle passes over the block member, the pressure receiving plate portion can be more reliably displaced downward by the load of the vehicle.

  A toll collection system according to the present invention is a toll collection system that is installed in a toll facility for a vehicle and collects a usage fee for the toll facility, and includes any one of the tread frame and the frame main body of the tread frame. And a tread board that is housed and detects a vehicle press by a short circuit of a contact body provided therein.

  According to the toll collection system having such a feature, while the treadle that can detect the pressing of the vehicle and the axle weight meter that measures the axle weight of the vehicle are configured as separate bodies, They can be arranged integrally. Thereby, the tread board and the axle weight meter can be continuously passed through the vehicle traveling in the passage.

  The toll collection system according to the present invention is a toll collection system that is installed in a toll facility for a vehicle and collects a use fee of the toll facility, and is embedded in a passage for passage processing of the toll facility for the vehicle. A frame main body, a tread that is housed in the frame main body and detects pressing of the vehicle by a short circuit of a contact body provided therein, and in the vicinity of the frame main body in at least one of the passage main body in the forward and backward directions of the frame main body And an axle weight meter that measures the axle weight of the vehicle traveling in the passage.

  According to the toll collection system having such a feature, since the tread board and the axle weight meter are arranged in the vicinity of each other, the tread board and the axle weight gauge can be continuously passed through the vehicle traveling on the passage.

  According to the tread frame and toll collection system of the present invention, since the tread and the axle load meter can be provided separately, the measurement accuracy of the tread and the axle load meter is not lowered. Furthermore, since the vehicle traveling in the passage continuously passes through the tread board and the axle weight meter, for example, it is possible to avoid the axle weight of the preceding vehicle being linked to the vehicle specifying information of the succeeding vehicle. Therefore, it is possible to realize unified management of vehicle specifying information and axle load information.

It is a top view which shows schematic structure of the fee collection system of this embodiment. It is a longitudinal cross-sectional view of a tread board and a tread board frame. It is a top view of a part of tread frame.

Hereinafter, a tread frame and a toll collection system according to an embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the toll collection system 1 is provided in a passage for processing between islands in, for example, a toll gate on a toll road, and includes a tread board 10 accommodated in a tread frame 20 and a first vehicle. Of the detector 2, the second vehicle detector 3, the third vehicle detector 4, the first antenna 5, the second antenna 6, the start controller 7, the roadside indicator 8, and the toll collection system 1. And a lane server (not shown) for controlling each device.

As shown in FIG. 1, the tread board 10 is installed so as to extend in the width direction of the passage at the entrance of the passage.
As shown in FIG. 2, the tread 10 includes a tread main body 11 having a rectangular shape in plan view in which the passage width direction is a longitudinal direction and the vehicle traveling direction is a short direction, and has a predetermined thickness in the vertical direction. ing. The tread board main body 11 is formed of an elastic body such as rubber, and a plurality of cavities 12 extending in the passage width direction are spaced apart in the vehicle traveling direction (four in this embodiment). Is formed. Further, a plurality of (four in this embodiment) ridges 11 a that protrude upward and extend in the passage width direction are formed at locations corresponding to the hollow portions 12 on the upper surface of the tread plate 10.

  The four cavities 12 are provided with contact sensors 13 respectively. The contact sensor 13 includes a pair of contact bodies that are spaced apart from each other in the vertical direction, and detects pressing of the vehicle when the contact bodies are short-circuited. A pressing signal indicating the presence or absence of pressing of the vehicle detected by the contact sensor 13 is output to the lane server. The lane server detects tread plate detection information such as the number of axes, tread (distance between right and left wheels of the vehicle) and forward / backward movement of the vehicle based on the pressing signal.

  As shown in FIG. 1, the first vehicle detector 2, the second vehicle detector 3, and the third vehicle detector 4 are a pair of optical sensors installed on both sides of the passage so as to face each other across the passage. The vehicle detection signal which shows whether the space between these pair of optical sensors is a light transmission state or a light-shielding state is output to a lane server. The lane server detects vehicle entry when the vehicle detection signal transitions from the light-transmitting state to the light-blocking state, and detects passage of the vehicle when the vehicle detection signal transitions from the light-blocking state to the light-transmitting state.

  The first vehicle detector 2 is installed at substantially the same position as the tread board 10 in the vehicle traveling direction of the passage. The second vehicle detector 3 is installed on the front side in the vehicle traveling direction from the first vehicle detector 2, and the third vehicle detector 4 is further on the front side in the vehicle traveling direction than the second vehicle detector 3. Is installed.

  The 1st antenna 5 communicates with the onboard equipment mounted in the vehicle which drive | works a path | route, and reads the vehicle specific information which specifies a vehicle from onboard equipment by control of a lane server. The first antenna 5 is installed in front of the second vehicle detector 3 in the vehicle traveling direction so as to be adjacent to the second vehicle detector 3 in the vehicle traveling direction. A range between the vehicle detector 3 is a communication area.

  The second antenna 6 communicates with the vehicle-mounted device mounted on the vehicle traveling along the passage, and writes the vehicle type information determined using the number of axles counted by the tread board 10 to the vehicle-mounted device under the control of the lane server.

The start controller 7 is installed behind the third vehicle detector 4 in the vehicle traveling direction, and includes a blocking bar installed so that the passage can be freely opened and closed. The start controller 7 opens or closes the passage by opening and closing the blocking bar under the control of the lane server.
The roadside indicator 8 displays information notified to the vehicle driver under the control of the lane server.

  Next, the tread frame 20 for installing the tread 10 will be described. The tread frame 20 includes a frame main body 21 and a shaft weight meter 24, and is installed in a recess 40 formed at the entrance of the passage. The concave portion 40 includes a rectangular hole-shaped first concave portion 41 extending in the passage width direction, and a rectangular hole-shaped second concave portion 42 extending in the passage width direction on both sides of the first concave portion 41 in the vehicle traveling direction. And is formed from. The depth of the second recess 42 is set smaller than that of the first recess 41.

As shown in FIGS. 2 and 3, the frame main body 21 has a rectangular bottomed box shape that can accommodate the tread frame 20, and is formed of a material having high rigidity such as steel. . The frame body 21 is installed in a first recess 41 having a depth substantially the same as the height of the frame body 21.
More specifically, the frame body 21 includes a bottom plate portion 22 laid on the bottom surface of the first recess 41, a pair of end plate portions 23 rising from both ends of the bottom plate portion 22 in the vehicle traveling direction, and the bottom plate portion 22. And a pair of side plate portions 21a rising from both ends in the passage width direction.

  On the upper surface of the bottom plate portion 22, the lower surface of the tread plate 10 is placed. Further, the end plate portion 23 contacts the tread plate 10 from both sides in the vehicle traveling direction, and the side plate portion 21a contacts the tread plate 10 from both sides in the passage width direction. The height of the end plate portion 23 and the side plate portion 21a from the bottom plate portion 22 is substantially the same as the thickness of the tread plate 10. Thus, the tread plate 10 can be accommodated in the inner space of the tread frame 20 including the bottom plate portion 22, the end plate portion 23, and the side plate portion 21a without any gap. Further, in the state in which the tread plate 10 is accommodated in the tread frame 20 as described above, the upper ends of the end plate portion 23 and the side plate portion 21a and the upper surface of the tread plate 10 are substantially flush with the road surface of the passage and are exposed to the road surface shape. ing.

  The axle weight meter 24 is provided integrally with the frame body 21 so as to be housed in the second recess 42 before and after the frame body 21 in the vehicle traveling direction. The axle weight meter 24 includes a pressure receiving plate portion 25, a strain gauge (load detection element) 28, and an elastic material 29.

The pressure receiving plate portion 25 is provided integrally with the frame body 21 so as to protrude from the upper ends of the pair of end plate portions 23 of the frame body 21 to the outside of the frame body 21.
That is, of the pair of pressure receiving plate portions 25, one pressure receiving plate portion 25 integrated with the end plate portion 23 on the rear side in the vehicle traveling direction is rearward in the vehicle traveling direction so as to cover the entire region of the end plate portion 23 in the passage width direction. Overhangs. Further, of the pair of pressure receiving plate portions 25, the other pressure receiving plate portion 25 integrated with the end plate portion 23 on the front side in the vehicle traveling direction is rearward in the vehicle traveling direction so as to cover the entire region of the end plate portion 23 in the passage width direction. It protrudes toward the side. Each of the pair of pressure receiving plate portions 25 is formed in a plate shape having a rectangular shape in a plan view, and is preferably integrally formed with the end plate portion 23 of the frame main body 21 by, for example, a steel material.

  The pressure receiving plate portion 25 is formed with a slit 26 that penetrates the pressure receiving plate portion 25 in the vertical direction and extends in the passage width direction. In the present embodiment, in particular, a pair of slits 26 are formed on the left and right sides of the passage at intervals in the vehicle traveling direction, that is, a total of four slits 26 are provided.

  A block member 27 made of, for example, metal or hard rubber is fixed between a pair of slits 26 spaced apart in the vehicle traveling direction on the upper surface of the pressure receiving plate portion 25. The block member 27 has a longitudinal dimension substantially the same as the dimension in the extending direction of the slit 26 and a rectangular dimension in a short side direction shorter than the interval between the slits 26 spaced apart in the vehicle traveling direction. It has a shape and is arranged so as to protrude from the upper surface of the pressure receiving plate portion 25 at a predetermined height.

  The strain gauge 28 is configured, for example, by forming a metal resistor in a meandering manner on an insulator, and can detect the amount of strain based on a change in electrical resistance due to deformation. The strain gauge 28 is integrally provided on the lower surface of the pressure receiving plate portion 25. In this embodiment, the strain gauge 28 is provided in a region between the slits 26 that are separated in the vehicle traveling direction on the left and right sides of the pressure receiving plate portion 25, respectively. . Thereby, the strain gauge 28 detects the amount of strain based on the downward displacement of the pressure receiving plate portion 25 due to the axle load of the vehicle.

  Here, the downward displacement of the pressure receiving plate portion 25 increases in accordance with the load acting downward on the pressure receiving plate portion 25, that is, the value of the axle load of the vehicle. Therefore, the strain amount detected by the strain gauge 28 corresponds to the vehicle axle weight, and the strain gauge 28 outputs this strain amount to the lane server as vehicle axle load information. In particular, in the present embodiment, since the strain gauges 28 are separately provided on the left and right sides of the pressure receiving plate portion 25, the left and right axle weights of the vehicle are output to the lane server as axle weight information.

  The elastic material 29 is a member made of a material having elasticity, such as silicon, and is provided so as to fill a space between the pressure receiving plate portion 25 and the bottom surface of the second recess 42. Thereby, the lower surface of the pressure receiving plate portion 25 and the strain gauge 28 are in contact with the elastic material 29. The elastic material 29 may also be filled in the slit 26 of the pressure receiving plate portion 25.

Next, the operation and processing of the toll collection system 1 provided with such a tread frame 20 will be described.
When a vehicle enters the passage of the toll collection system 1, the lane server detects the entry of the vehicle by first turning off the optical sensor of the first vehicle detector 2. At the same time, the vehicle sequentially passes on the axle weight meter 24 on the front side in the vehicle traveling direction, the tread board 10, and the axle weight scale 24 on the rear side in the vehicle traveling direction. 10 is output to the lane server.

  At this time, the lane server counts the number of axles based on the pressing signal of the tread board 10. In other words, the lane server counts the number of output of the pressing signal while the first vehicle detector 2 detects the entry of the vehicle as the number of axles of the vehicle. The lane server determines, for example, that it is a “normal vehicle” when the number of axles is “2”, and determines that it is a “large vehicle” when the number of axles is “3” or “4”. When the number of axles is “5” or more, it is determined that the vehicle is an “extra large vehicle”.

Further, the lane server calculates the total weight of the vehicle based on the axle weight information of the axle weight meter 24. In other words, the lane server adds the peak of the axle load information by each of the pair of axle load gauges 24 while the vehicle entry is detected by the first vehicle detector 2, for each axle load gauge 24. The total weight of is calculated.
If the lane server determines that the lane server is overloaded as a result of the total weight of the vehicle exceeding a predetermined threshold, the lane server outputs display information indicating that the lane server is overloaded to the roadside indicator 8, and the roadside indicator 8 displays the display information on the screen.

  The first antenna 5 is activated by detecting the entry of the vehicle by the first vehicle detector 2. The first antenna 5 communicates with the on-vehicle device of the vehicle, acquires vehicle specifying information stored in the IC card inserted into the on-vehicle device, and transmits it to the lane server. The lane server manages the vehicle specifying information in association with the axle load information.

  Next, when the vehicle travels and the optical sensor of the second vehicle detector 3 is in a light-shielded state, the lane server determines whether or not the vehicle specifying information is normal, and determines that it is normal The normal process is executed. That is, the lane server outputs an opening command to the start controller 7, and the start controller 7 opens the passage based on the open command. Further, the lane server outputs display information indicating that the passage is permitted to the roadside indicator 8, and the roadside indicator 8 displays the display information on the screen.

Then, when the traveling vehicle sets the light sensor of the third vehicle detector 4 in the light-shielded state, the lane server outputs a turn-off command to the road-side display 8, and based on this, the road-side display 8 turns off the screen. Further, when the vehicle passes through the irradiation range of the optical sensor of the third vehicle detector 4 and the optical sensor enters a light-transmitting state, the lane server outputs a closing command to the start controller 7, and the start controller 7 Based on the closing instruction, the blocking bar is lowered to close the passage. Thereafter, the second antenna 6 communicates with the vehicle-mounted device and writes the vehicle type information determined using the number of axles counted by the tread board 10 to the vehicle-mounted device.
On the other hand, when the lane server determines that the vehicle identification information or the like is abnormal, the lane server executes an abnormality process and maintains the closed state of the passage by the lane server.

In the toll collection system 1 as described above, the tread plate 10 is housed in the frame body 21 of the tread frame 20 integrally provided with the axle weight 24, so that the tread plate 10 that detects the pressing of the vehicle and the shaft of the vehicle While the axle weight meter 24 for detecting the weight is configured as a separate body, the tread board 10 and the axle weight gauge 24 can be integrally disposed.
That is, since the tread board 10 and the axle weight meter 24 can be provided separately, for example, compared with the case where the function of the tread board 10 and the function of the axle weight gauge 24 are integrated, the measurement of the vehicle pressure and the axle weight is performed. Accuracy can be guaranteed.
Further, since the tread board 10 and the axle weight meter 24 can be continuously passed through the vehicle traveling in the passage, for example, the axle load of the preceding vehicle is linked to the vehicle specifying information of the succeeding vehicle in the lane server. It can be avoided. Therefore, it is possible to realize unified management of vehicle specifying information and axle load information.

  Further, in the present embodiment, since the tread frame 20 includes the bottom plate portion 22 and the end plate portion 23, the tread plate 10 can be firmly fixed to the passage. The strain gauge 28 detects the vehicle load acting on the pressure receiving plate portion 25 provided integrally with the end plate portion 23 of the frame main body 21, that is, the displacement of the pressure receiving plate portion 25. Can be easily detected.

  Further, the tread frame 20 according to the present embodiment is formed with a slit 26 extending in the width direction of the passage in the pressure receiving plate portion 25, so that the pressure receiving plate provided integrally with the rigid frame body 21 is provided. The rigidity of the portion 25 can be reduced, and the pressure receiving plate portion 25 can be easily deformed downward. Therefore, the load measurement by the strain gauge 28 can be performed more reliably.

  Here, for example, when a space is provided below the pressure receiving plate portion 25 to allow the pressure receiving plate portion 25 to be displaced downward, rainwater, dust, or the like accumulates in the space, which is not preferable for maintenance. . On the other hand, in this embodiment, when a load acts on the pressure receiving plate portion 25 downward, the elastic material 29 is elastically deformed to allow the pressure receiving plate portion 25 to be displaced downward. Therefore, it is not necessary to provide a space below the pressure receiving plate portion 25, and the maintainability can be improved. In addition, since the elastic material 29 relaxes the impact due to the load acting on the pressure receiving plate portion 25, the impact resistance of the pressure receiving plate portion 25 can be improved.

  Further, since the block member 27 is provided on the upper surface of the pressure receiving plate portion 25, the traveling vehicle passes over the block member 27, so that the pressure receiving plate portion 25 is more reliably moved downward by the load of the vehicle. Can be displaced. That is, since the axle weight of the vehicle is dispersed by the block material 27, the load can be applied uniformly to the entire installation location of the block material 27. As a result, the pressure receiving plate portion 25 can be appropriately displaced downward.

As mentioned above, although embodiment of this invention was described in detail, unless it deviates from the technical idea of this invention, it is not limited to these, A some design change etc. are possible.
For example, in the embodiment, the example in which the strain gauge 28 is used as the load detection element has been described. However, the present invention is not limited to this, and other load detection elements can be used as long as the load applied to the pressure receiving plate portion 25 can be detected. For example, a load cell, a pressure sensitive sheet, or the like may be used.

  Further, the axle load gauges 24 in the tread frame 20 may not be provided on both sides of the frame main body 21 in the vehicle traveling direction, and may be provided on at least one side of the frame main body 21 in the vehicle traveling direction.

  Furthermore, in the toll collection system 1 of the embodiment, the axle load scale 24 is configured integrally with the frame body 21, but the axle load scale 24 may be provided separately from the frame body 21. In this case, it is preferable that the axle weight meter 24 is provided in the vicinity of the frame main body 21 in at least one of the passages before and after the frame main body 21 in the traveling direction. As a result, the axle load gauge 24 and the tread board 10 can be continuously passed through the vehicle traveling in the passage.

  Further, in this case, the installation location of the axle weight meter 24 can be set so that the axle weight of the vehicle can be detected by the axle weight meter 24 while the vehicle entry is detected by the first vehicle detector 2. preferable. This also prevents the axle load information of the preceding vehicle acquired by the axle load gauge 24 from being associated with the vehicle identification information of the succeeding vehicle. Centralized management can be performed.

  In the embodiment, the elastic material 29 is provided below the pressure-receiving plate portion 25 of the axle weight 24. However, the elastic material 29 is not necessarily provided. In other words, any configuration that allows the downward displacement of the pressure receiving plate portion 25 may be used.

  In the embodiment, the slit 26 is formed in the pressure receiving plate portion 25 so that the pressure receiving plate portion 25 is easily displaced downward. For example, the thickness of the pressure receiving plate portion 25 formed integrally with the frame main body 21 is reduced. The pressure receiving plate portion 25 may be easily displaced downward by reducing it from the frame body 21. Thereby, it is possible to displace the pressure receiving plate portion 25 while ensuring the rigidity of the frame body 21. Furthermore, the pressure receiving plate portion 25 may be easily displaced downward by using a material having rigidity lower than that of the frame body 21 as a material constituting the pressure receiving plate portion 25.

DESCRIPTION OF SYMBOLS 1 Toll collection system 2 1st vehicle detector 3 2nd vehicle detector 4 3rd vehicle detector 5 1st antenna 6 2nd antenna 7 Start control machine 8 Roadside indicator 10 Tread plate 11 Tread plate main body 11a ridge 12 Cavity 13 Contact sensor 20 Tread frame 21 Frame body 22 Bottom plate 23 End plate 21a Side plate 24 Axle weight 25 Pressure receiving plate 26 Slit 27 Block material 28 Strain gauge 29 Elastic material 41 First recess 42 Second recess

Claims (8)

A tread frame for installing a tread for detecting the pressure of a vehicle traveling in a passage for passage processing of a toll facility for a vehicle in the aisle,
A frame body embedded in the passage and capable of accommodating the tread;
A tread frame, comprising: a shaft weight meter that is provided integrally with at least one of both ends of the frame main body in the vehicle traveling direction and that measures a shaft weight of a vehicle traveling in the passage. The frame body is
A bottom plate portion laid on the bottom surface of the recess formed in the passage;
A pair of end plate portions rising from both ends of the bottom plate in the vehicle traveling direction and contacting the tread from both sides of the vehicle traveling direction;
The axle scale is
A pressure receiving plate portion projecting from the upper end of at least one of the pair of end plate portions to the outside of the tread frame;
The tread frame according to claim 1, further comprising a load detection element that is provided on the pressure receiving plate portion and detects a load acting downward on the pressure receiving plate portion. The pressure receiving plate portion can be displaced downward,
The tread frame according to claim 2, wherein the load detection element is a strain gauge.   The tread frame according to claim 3, wherein a slit extending in a width direction of the passage is formed in the pressure receiving plate portion. The axle scale is
The tread frame according to any one of claims 2 to 4, further comprising an elastic material that contacts a lower surface of the pressure receiving plate portion. The axle scale is
The tread frame according to any one of claims 2 to 5, further comprising a block member provided on an upper surface of the pressure receiving plate portion. A toll collection system that is installed in a toll facility for a vehicle and collects a usage fee for the toll facility,
The tread frame according to any one of claims 1 to 6,
A toll collection system comprising: a tread that is housed in the frame body of the tread frame and that detects pressing of the vehicle by a short circuit of a contact body provided therein. A toll collection system that is installed in a paid facility for vehicles and collects usage fees for the toll facility.
A frame body embedded in a passage for passage processing of the paid facility for the vehicle;
A tread board which is housed in the frame body and detects the pressing of the vehicle by a short circuit of a contact body provided inside;
A toll collection system comprising: an axle weight meter that is provided in the vicinity of the frame main body in at least one of front and rear of the frame main body in the passage in the passage and measures the axle weight of the vehicle traveling in the passage. .

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