JP5602543B2 - Wheel detector - Google Patents

Description

The present invention manages the admission and participation of bicycles and motorcycles, to a suitable wheel sensing device used in bicycles / motorcycles combined parking.

In recent years, paid and free bicycle parking lots have been set up in front of railway stations and around large shopping malls, but there is still no maintenance for motorcycle parking lots. As this solution, but there is also a method of installing a motorcycle-only parking, an existing bicycle-only parking lot in recent years, also improved as can be accommodated in the combination to the motorcycle, Ya entrance of the bicycle parking lot If a motorcycle is discriminated at the entrance and a motorcycle is used, the usage of a parking lot usage fee that is slightly higher than that of a bicycle is increasing.

Therefore, there is a need for a discriminating device that can discriminate between vehicle types , that is, bicycles and motorcycles automatically and accurately, and as a result, for example, Patent Document 1 discloses five beams. a vehicle detection device for projecting light based on the detection signal from the vehicle detection device, in a vehicle discrimination system comprising a vehicle discrimination apparatus for discriminating a vehicle that blocks the respective beams, the vehicle discrimination apparatus with the progress of the vehicle Corresponding to the fact that each beam is shielded by the moving wheels, it is determined whether the entering vehicle is a bicycle or a motorcycle based on the shielding state and change of each beam represented by the detection signal output from the vehicle detection device. by reliably to determine the bicycles and motorcycles, Thus also, easily to existing parking lot, and a technique of installing a vehicle capable classification system has been developed at a low cost.

JP2007-304725A

However, the the bicycle / motorcycle combination parking using a conventional vehicle discrimination system, bicycles and vehicles determination system which is considered as a motorcycle can determine, at the time of admission, accidentally or intentionally, bicycle or automatic If something other than the wheel of a motorcycle, such as a user's foot, blocks a detection beam for vehicle identification, there is a problem that it is impossible to identify a bicycle or a motorcycle. This problem was addressed by calling attention in the cautionary notes on the operation of the parking lot by clearly stating that the detection beam should not be blocked by anything other than a bicycle or motorcycle. , to exploit this malfunction, by disguise a motorcycle and bicycle, and there is a problem that the rate of fraud occurs cheap to calculate the parking lot use fee is high, against the fraud of this, such as, strong The actual situation is that the system is not defenseable.

Furthermore, in the conventional vehicle discrimination system, the height of the cross section including the tire and the rim of the motorcycle wheel, by utilizing the characteristic that differs from that of the bicycle, but to determine the bicycle and motorcycle, motorcycle If the air pressure of the tire was low, accidentally or intentionally, the state that the user has crushed tires added weight from the front wheels upwardly around the detection beam in a flat state Then, a motorcycle as a bicycle there is a possibility that false positives occur that result in recognition, even to fraud to the false positives is calculated cheap parking use fee using, strong measures have been demanded.

Therefore, the technical problem of the present invention is that even if a user's foot or the like blocks the detection beam for identifying the wheel , or adds weight from above the front wheel in the vicinity of the detection beam to make the tire flat, This is to realize a wheel detection device provided with a vehicle type discrimination system that exhibits a strong defense function against a user's intentional fraud.

(1) In order to solve the above-described problem, a wheel detection device according to claim 1 of the present invention is a pair of light-emitting and light-receiving devices installed opposite to each other on both sides of a roadway on which a bicycle or a motorcycle runs. A wheel detection device capable of discriminating and detecting a bicycle and a motorcycle according to a light reception detection pattern on the other side of a plurality of beams emitted from one side,
The height from the beam of the car road surface is at least a reference, and arranged in substantially equal height as the central position of the front wheels smallest diameter envisaged from a height from the vehicle road, at a position spaced apart from the vehicle road by the plurality of beams to detect a difference in thickness to the outer diameter and the rim inner diameter portion in the traveling direction front side of the front wheel has been detected, to determine the thickness of the front wheel tires, bicycles and motorcycles from the determination result It is characterized by identifying.

(2) In order to solve the above-described problem, a wheel detection device according to claim 2 of the present invention is provided with a pair of light-emitting / receiving devices opposed to both sides of a roadway on which a bicycle or a motorcycle runs. accordance receiving detection pattern at the other side of the four beams emitted from one side of the pair of light-emitting light-receiving device obtained by equally placed, a wheel sensing device for detecting a bicycle and motorcycle,
Of the four beams, the first beam (B1) is spaced from the road surface and has a height substantially equal to the center position of the smallest tire of the bicycle, and the second beam (B2) is the first beam (B2). The third beam (B3) is disposed obliquely below the traveling direction at a distance longer than the thickness (W1) of the bicycle tire and shorter than the thickness (W2) of the motorcycle tire. ) Above the position offset in the direction of the line connecting the first and second beams (B1) and (B2) further than the second beam (B2), and the first and second beams (B1). ) And (B2) are arranged at the middle of the height from the road surface, and the fourth beam (B4) is further in the first and second beams (B1) and (B2) than the second beam (B2). Below the position offset in the direction of the line connecting Second beam and (B2) be disposed intermediate the height of the car road, the light receiving detection pattern at the other side of each beam, to output to determine the bicycles and motorcycles and other foreign matter It is a feature.

(3) In order to solve the above-described problem, the wheel detection device according to claim 3 of the present invention makes the emission direction of any one or two of the beams different from the other beams. It is characterized by that.

According to the means according to claim 1 described in the above (1), the difference in thickness between the outer diameter portion of the front wheel and the inner diameter portion of the rim detected by the reference beam, that is, the thickness of the tire on the front side in the traveling direction of the front wheel. that is if it is detected that a thin, bicycle and to determine, if the thickness of the front wheel traveling direction front side of the tire is detected as the thick, by discriminating the motorcycle, to accurately identify the bicycles and motorcycles to enable.

According to the means according to claim 2 described in the above (2) , the bicycle and the motorcycle can be accurately identified based on whether or not both the first beam and the second beam are shielded . That is, these first and front wheel second beam is separated from the floor surface, in particular, in order to detect the front wheel traveling direction front side, can be prevented as much as possible be detected overlapping with the user's foot, the error Occurrence can be reduced.

Further, according to the means according to claims 1, 2 described in the above (1) and (2), a front wheel tire pressure, in order to have detected by the front wheels of the front, the user near the detecting beam adding weight than the upper, even if crushed tires flattened, crushed is given a lower portion of the front wheel, not a front wheel of the front, there is no Rukoto are left and right thus determining the degree collapse of the tire It is possible to reliably prevent fraud that causes the tire to be intentionally crushed and erroneously detected.

  Further, according to the means according to claim 2 described in the above (2), the bicycle is determined in a state where both the first beam and the second beam are transmitted, and the front wheel to be detected is greatly increased in the traveling direction. Even if the vehicle is bent, there is almost no difference in the detection state of the front wheels compared to the straight state, and the bicycle can be detected accurately.

In addition, according to the means according to claim 3 described in (3) above, interference and erroneous detection between a plurality of neighboring beams can be reliably prevented, and the wheel detection device can be realized with high performance.

Depending described above, according to the wheel detecting apparatus of the present invention, even if the foreign matters such as the user's foot has blocked the detection beam for wheel discrimination, without to cause malfunction, and in the vicinity of the detection beam be that to deform the tire in a flat state by the addition of weight from the wheel upward, it is a fried the erroneous detection wrong motorcycles and bicycles occurs, robust to misconduct which such deliberate and accurate A wheel detection device equipped with a vehicle type discrimination function can be realized. For example, the wheel detection device is suitable for installation at an entrance or exit of a pay bicycle / motorcycle combined parking lot.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an entrance road of a bicycle / motorcycle combined parking lot equipped with a wheel detection device according to an embodiment of the present invention. 1 is an overview of a wheel detection device according to an embodiment of the present invention. The side view of the wheel detection apparatus which concerns on the Example of this invention. The detail drawing of the wheel detection apparatus which concerns on the Example of this invention. Operation | movement explanatory drawing in case the wheel detection apparatus which concerns on the Example of this invention has detected the bicycle of a large diameter tire. Operation | movement explanatory drawing in case the wheel detection apparatus which concerns on the Example of this invention has detected the bicycle of a small diameter tire. Operation | movement explanatory drawing in case the wheel detection apparatus which concerns on the Example of this invention has detected the motorcycle (motorcycle). The operation | movement flowchart of the wheel detection apparatus which concerns on the Example of this invention. Operation | movement explanatory drawing of the wheel detection apparatus which concerns on the Example of this invention. The general-view figure of the wheel detection apparatus which concerns on the other Example of this invention. The detail drawing of the wheel detection apparatus which concerns on the Example of this invention.

  Hereinafter, an embodiment of a wheel detection device according to the present invention will be described with reference to the drawings. FIG. 1 shows a bicycle / motorcycle combined parking lot (hereinafter simply referred to as parking) equipped with a wheel detection device according to an embodiment of the present invention. It is a general view of the entrance lane ED portion of the car). In FIG. 1, road shoulders ES and ET are formed on both sides of an entrance road ED, and a parking ticket issuing machine 10 is installed on one side of the road shoulder ED. In addition, the road width of the entrance road ED is limited to a width that prevents two bicycles / motorcycles from proceeding simultaneously. Although not shown on the shoulders ES and ET, a regulation barrier is installed, The system does not allow the user to go out of the roadway ES or ET from the middle of the entrance lane ED or to escape.

  In addition, a pair of wheel detection devices 11 and 12 are installed on both road shoulders ES and ET separately on one side and the other side on the far side in the traveling direction from the parking ticket issuing machine 10. User H may leave bicycle A or motorcycle M while entering bicycle A or motorcycle M (see FIG. 7) into entrance lane ED, but get off and push the handle as shown in the figure. It is common to enter while. Of course, there are cases where the parking lot manager is obliged to get off and enter to avoid danger in operation.

  Although not shown, gate devices are respectively installed before and after the entrance lane ED of FIG. 1, the gate device on the near side entering the lane ED, the gate device on the back side leaving the lane ED, and the parking ticket A sensor for detecting the bicycle A, the motorcycle M, and the user H is also installed in the vicinity of the issuing machine 10, the pair of wheel detection devices 11 and 12, and the gate device on the front side and the back side (not shown). Has been.

  The wheel detection device of the present invention may be used as a sensor in the vicinity of the gate device. Rather, in the entrance lane ED, it is installed in the vicinity of the parking ticket issuing machine 10 and the bicycle A or the motorcycle M. It is used to accurately identify these. In addition, when it is installed on the entry lane (not shown), a fee settlement machine (not shown) is used in place of the parking ticket issuing machine 10, but the wheel detection of the present invention is in the vicinity of the fee settlement machine. The device is installed and used.

   When the bicycle A enters the entrance lane ED as illustrated in the state of FIG. 1, when the front wheel AS of the bicycle A reaches a predetermined position between the pair of wheel detection devices 11 and 12, the bicycle A Or when the parking ticket issuing machine 10 receives the signal and enters the bicycle A, the parking ticket issuing machine 10 recognizes that it is the bicycle A. . Next, the parking ticket issuing machine 10 automatically issues a bicycle parking ticket or outputs a message such as “Please press the ticketing button and take the parking ticket”, and the user H presses the ticketing button 10H. When the button is pressed, a bicycle parking ticket may be issued.

  The bicycle parking ticket has a flag indicating the bicycle recorded on the parking ticket (not shown), but the entrance date, time, parking ticket number, machine number of the parking ticket issuing machine, etc. are illustrated. The parking ticket is recorded on the magnetic stripe and printed on the surface so that the information is visible. On the contrary, when the motorcycle M is determined, a flag indicating the motorcycle M is recorded.

1 to 3, were generally indicated by the respective reference numerals 11 and 12, a wheel detecting apparatus according to an embodiment of the present invention, the wheel detection unit 11 on one side is 4 inside the case箇The light receiving portions 11A, 11B, 11C, and 11D (infrared light receiving elements) are arranged at the predetermined positions shown in the figure. Further, in the wheel detection device 12 on the other side, four light emitting units 12A, 12B, 12C, and 12D (infrared light emitting elements) are disposed at predetermined positions inside the case. Of course, each relative positional relationship is the same, that is, a symmetrical relationship with respect to the center line of the road ED.

On the other hand, in the wheel sensing device 12 of the other side case mounting mechanism of the light-emitting element as a light emitting portion 12A~12D described above (not shown) is provided, through which such wiring not shown from the light emitting element It is connected to the wheel detection device 11 on one side. Inside the case of one side of the wheel detection unit 11, and the mounting mechanism of the light-emitting element as a light receiving portion 11A~11D described above, the wiring from the light-receiving element (all not shown), each of said Wirings from the light emitting units 12A to 12D are provided, and each of these wirings is connected to an internal control unit (not shown), and in the case, other power supply units and setting operation units (all are not shown). Etc. are provided.

  Further, the wheel detection device 11 on one side is connected to the parking ticket issuing machine 10 through a wiring (not shown), and an input / output unit for a vehicle type discrimination signal and a reset signal, which will be described later, and a power supply path are used for an entrance vehicle ED and a shoulder ES , Buried in the ET and wired.

  In the embodiment of the present invention, sensors using infrared beams are used for the light emitting units 12A to 12D and the light receiving units 11A to 11D described above, but not only infrared rays but also red visible light type sensors may be used. The method using ultrasonic waves, microwaves, or laser beams can also be realized, and may be appropriately determined in consideration of sensor directivity, spot diameter, and sensor element price.

FIG. 3: has shown the side view of the one side wheel detection apparatus 11 which concerns on the Example of this invention, and has shown the state which looked at the one side wheel detection apparatus 11 from the wheel detection apparatus 12 side of the other side. As shown in the figure, the wheel detection device 11 on one side is provided with first to fourth beam light receiving portions 11A to 11D each having a light receiving opening at a predetermined position. Elements are arranged. Open the four light-emitting opening wheel sensing device 12 of the other side and which exactly the same positional relationship, each infrared light emitting portion 12A~12D is disposed.

Next, the arrangement of each of the light receiving portions 11A to 11D will be described with reference to the drawings. First, a first beam (hereinafter referred to as a first beam B1) at a position away from the ground of the entrance lane ED on the front side in the traveling direction. 11A of the second beam is disposed, and the light receiving unit 11B of the second beam (hereinafter referred to as the second beam B2) is disposed at a position shifted obliquely downward in the traveling direction from the light receiving unit 11A of the first beam B1. Yes. Furthermore, the third beam is positioned above the position where the imaginary line passing through the second beam B2 is slightly obliquely offset downward at a substantially right angle to the line connecting the light receiving portions 11A and 11B of the first and second beams B1 and B2. A light receiving portion 11C (hereinafter referred to as a third beam B3) is disposed, and a light receiving portion 11D of a fourth beam (hereinafter referred to as a fourth beam B4) is disposed below the virtual line.
<Detailed explanation of sensor placement>

4A and 4B are detailed views of the wheel detection device according to the embodiment of the present invention, and show the detailed positional relationship of the arrangement of the light receiving portions 11A to 11D of the four beams B1 to B4 described above. . First, the light receiving portion 11A of the first beam B1 described above is farthest from the surface of the road ED and is at a height substantially equal to the center position of the smallest tire ASL of the bicycle A. And the said 1st beam B1 comprises the beam used as the reference | standard of Claim 1 of the said claim.

  Specifically, in FIG. 4A, the assumed diameter of the minimum tire ASL of the bicycle A is 12.5 inches in the JIS standard and is approximately 320 mm in diameter, and therefore the light receiving portion 11A of the first beam B1. Is arranged at a height of about 160 mm from the surface of the road ED, but preferably it is arranged at a height between 140 mm and 160 mm in consideration of the recess of the smallest tire ASL. preferable. However, if it is higher than the center position of the tire diameter, there is a concern that the wheel will not be properly detected by parts such as mudguards, but it is better that it is as high as possible.

  The reason why the light receiving portions 11A and 11B of the first and second beams B1 and B2 are preferably as high as possible is that the bicycle A can be used depending on whether or not the light receiving portions 11A and 11B of the beams B1 and B2 are both shielded. And the motorcycle M can be identified, and these beams B1, B2 are separated from the road surface to detect the front side in the traveling direction of the front wheel AS. This is because the rate of error occurrence can be reduced. Even when the air pressure of the minimum tire ASL is low, since the front side of the front wheel AS is detected, it is not affected by the collapse state of the minimum tire ASL. This is because it can be prevented.

  Next, the light receiving portion 11B of the second beam B2 is disposed obliquely downward in the traveling direction at a distance of L1 from the light receiving portion 11A of the first beam B1, and the distance of L1 is outside the smallest tire of the bicycle A. The difference between the diameter D3 and the rim inner diameter D4, that is, a distance slightly longer than the thickness W1 of the tire ASR of the bicycle A, and the difference between the outer diameter B of the tire MSL of the motorcycle M and the rim inner diameter D, The distance is set shorter than the thickness W2 of the tire MSL of the motorcycle M shown in FIG.

  At this time, the assumed thickness W1 of the tire ASR of the bicycle A is adopted, while the assumed thickness W2 of the tire MSL of the motorcycle M is adopted. Specifically, the thickness W1 of the tire ASR of the bicycle A is about 60 mm or less, and the thickness W2 of the tire MSL of the motorcycle M is about 80 mm or more. Therefore, the beam interval L1 between the first beam B1 and the second beam B2 is set to about 70 mm. The angle of the line connecting both beams B1 and B2 is set downward about 45 degrees.

  Next, the aforementioned third beam B3 is substantially perpendicular to the line connecting the light receiving portions 11A and 11B of the first and second beams B1 and B2, and further passes through a virtual line passing through the second beam B2. The offset dimension L2 is assumed to be about 10 mm in consideration of the deformation and installation error, assuming the largest tire, and further to the road ED. The height from the surface is lower than that of the first beam B1, and is arranged approximately in the middle of the heights of the first and second beams B1 and B2.

  Further, the above-mentioned fourth beam B4 is substantially perpendicular to the line connecting the light receiving portions 11A and 11B of the first and second beams B1 and B2, and further passes through a virtual line passing through the second beam B2. It is below the position offset in the direction of the line connecting the second beams B1 and B2, and the offset dimension L3 is assumed to be about 10 mm in consideration of the deformation and installation error assuming the minimum tire ASL, and the road surface ED The height from the second beam B2 is lower than that of the second beam B2, at least higher than the surface of the roadway ED, and at a height of about two-thirds from the middle of the second beam B2 height. Yes.

  The offset dimensions L2 and L3 described above are substantially perpendicular to the line connecting the light receiving portions 11A and 11B of the first and second beams B1 and B2, and a virtual line passing through the second beam B2 is further added to the first and second beams B1 and B2. Although the distance may be indicated by an offset in the direction of the line connecting the second beams B1 and B2, the largest tire ASR and the smallest tire ASL of the bicycle A assumed in actual use move in the traveling direction, respectively. The maximum tire ASR is determined in consideration of the distance in the traveling direction to the position where the smallest tire ASL shields the third beam B3 and the smallest tire ASL shields the fourth beam B4. In consideration of this deformation, the offset dimensions L2 and L3 are about 10 mm as described above.

The details of these positional relationships may be determined in consideration of the beam diameter of the infrared sensor used, the degree of interference with adjacent elements, and the accuracy of installation position adjustment. Further, the positional relationship between the light-emitting side beams B1 to B4 is exactly the same as that, that is, is symmetrical with respect to the center line of the roadway ED.
<Description of operation>

  FIGS. 5 (1) to (6) are operation explanatory views of the wheel detectors 11 and 12 according to the embodiment of the present invention. First, the operation of the bicycle A1 of the maximum diameter tire ASR is shown. In (1), since the front wheel of the bicycle A1 does not reach between the wheel detection devices 11 and 12, all the beams B1 to B4 are all in the ON (transmission) state. When the bicycle A1 advances, the position (2) is first reached, and only the first beam B1 is turned off (shielded). When the bicycle A1 further travels, the position (3) is reached, the first beam B1 is turned on, and the other beams B2 to B4 are kept on. The position (4) is reached immediately and the second beam B2 is turned OFF, and then the position (5) is reached and the second beam B3 is turned OFF. As it further proceeds, the position (6) is reached and the fourth beam B4 is also turned OFF. In this series of detection states, when the detection state (5) is reached, the determination of the bicycle A1 with the maximum tire ASR can be output.

  FIG. 6 is a diagram for explaining the operation of the wheel detection device according to the embodiment of the present invention, and shows the operation of the bicycle A2 having the smallest tire ASL. In (1), since the front wheel of the bicycle A2 does not reach the wheel detection devices 11 and 12, all the beams B1 to B4 are all in the ON (transmission) state. When the bicycle advances, the position (2) is first reached, and only the first beam B1 is turned off (shielded). When the bicycle A2 further travels, the position (3) is reached, the first beam B1 is turned on, and the other beams B2 to B4 are kept on. The position (4) is reached immediately and the second beam B2 is turned OFF, and then the position (5) is reached and the fourth beam B4 is turned OFF. As it further proceeds, the position (6) is reached and the third beam B3 is also turned OFF. In this series of detection states, when the detection state (5) is reached, the determination of the bicycle A2 with the smallest tire ASL can be output.

  That is, even if it is the maximum tire ASR shown in FIG. 5, the minimum tire ASL shown in FIG. 6, or a tire having an intermediate diameter, as long as it is a bicycle A, (1) all the beams B1 to B4 are all ON, (2) only the first beam B1 is OFF, (3) the first beam B1 is ON and the other beams B2 to B4 remain ON, (4) the second beam B2 is OFF, (5 The detection state is such that one of the third beam B3 or the fourth beam B4 is OFF, and (6) the other of the third beam B3 or the fourth beam B4 is OFF. Therefore, the bicycle determination is output at the stage (5), but it may be performed after detecting (6). In addition, the third and fourth beams may be turned off simultaneously in (5) and (6).

FIG. 7 is an explanatory diagram of the operation of the wheel detection device according to the embodiment of the present invention, and shows the operation of the motorcycle M.
In (1), since the front wheel MA of the motorcycle M does not reach the wheel detectors 11 and 12, all the beams B1 to B4 are in the ON (transmission) state. When the motorcycle M advances, the position (2) is first reached, and the first beam B1 is turned off. When the motorcycle M further advances, the position (3) is reached, and the first beam B1 is OFF and the second beam B2 is OFF. Since it is different from the detection state of the bicycles A1 and A2, the determination of the motorcycle M can be output at this time. When the motorcycle M further travels, the position (4) is reached, but whether or not the first beam B1 is turned on at that time is not uniform depending on the wheel shape of the tire MA of the motorcycle M or the like. Also, whether the second beam B2 is turned off or the third beam B3 is turned off depends on the tire diameter of the motorcycle M.

  In any case, in the case of the motorcycle M, (1) the beams B1 to B4 are all ON, (2) only the first beam B1 is OFF, and (3) the second beam while the first beam B1 remains OFF. The determination of the motorcycle M is output when the detection state that B2 is OFF, but this determination may be made after detecting (4).

  As described above, in the embodiment of the present invention, it is determined whether the bicycle A or the motorcycle M is detected from the detection state (ON / OFF state) of the four beams indicated by B1 to B4. It is devised to output a discrimination signal when established. Further, even if the user H tries to generate these detection patterns by holding the foot HL or the like, the respective beams B1 to B4 arranged at heights separated from the roadway ED are detected according to the above-described pattern. It can be said that it is almost impossible to do this intentionally for fraudulent purposes, even if it happens.

  FIG. 8 shows an operation flow of the wheel detection apparatus according to the embodiment of the present invention. Whether the determination output of the bicycle A or the determination of the motorcycle M is performed depending on which of the detection patterns described above is established. Has been switched. If none of the patterns is applicable, an error is output as shown in step S11, and the process returns to step S1 and restarts.

  When the determination output of the bicycle A is output in step S5 or the determination output of the motorcycle M is output in step S8, the output is input to the parking ticket issuing machine 10 described above to record and print desired data. When a parking ticket is issued and the user pulls out the parking ticket, the gate device (not shown) in the forward direction is opened, and the user can leave the entrance lane ED.

  When the exit of the user is separately detected by a sensor (not shown) near the gate, the parking ticket issuing machine 10 outputs a gate closing command to the gate device, and a reset signal is sent to the wheel detection devices 11 and 12. Output. When the reset signal is received in step S6, the operation of the wheel detectors 11 and 12 is completed.

FIG. 9 is an explanatory view of the operation of the wheel detectors 11 and 12 according to the embodiment of the present invention, and shows the traveling state of the motorcycle M. The advantage of the configuration of the present invention is that it accurately discriminates between the bicycle A and the motorcycle M and prevents fraud that intentionally misdetects the discrimination state. For example, as in (1) When the motorcycle M is advanced to the wheel detectors 11 and 12 while the weight FP is applied to the handle MH and the front tire MA is recessed as indicated by the symbol MX as shown in (2), the air pressure can be reduced. In the embodiment of the present invention, since the state of (2) is exactly the same pattern as the detection state of FIG. 7 (3), when the punctured motorcycle M is pushed, Even if it is detected in such a state, it can be accurately determined that the vehicle is a motorcycle M.

  Another advantage of the present invention is that the detection of the front wheel tire is performed on the front side in the traveling direction of the front wheel tire AS or MA shown in FIG. 1 or 9, so that it is intended when the user is pushing the handle. Even if the foot HL (refer to FIG. 1) is caught near the front wheel tire AS or MA, the foot HL is judged together with the tire MA and an error is prevented in most cases. I can do it. Of course, there is a possibility of an error if you intentionally protrude the foot HL forward and hold it over the position of the tire AS and MA, but if you unintentionally run the tire AS, MA and the foot HL side by side, The effect that it is hard to become an error can be fully exhibited.

  Further, as an advantage of the present invention, if the beams B1 to B4 are in a state of being separated from the surface of the road ED and the positional relationship between them is accurately arranged, the surface of the road ED is distorted, Even if the central part is slightly higher due to the gradient, there is an advantage that there is almost no hindrance to the discrimination between the bicycle A and the motorcycle M, and the relative positional relationship between the beams B1 to B4 as a whole. If it can be maintained, the performance will not be affected by the installation state. Therefore, if it is well adjusted at the manufacturing plant, the adjustment process when shipped and installed locally can be reduced.

<Other Example 1>
FIG. 10 is a schematic view of a wheel detection device according to another embodiment of the present invention. Although it is difficult to implement the present invention, each of the beams B1 to B4 may be arranged relatively close to each other. For example, there are four beams so as not to cause interference or misdetection by the adjacent beams. It is also effective to cause two of B1 to B4 to emit light from different directions by alternately providing light emitting units 12A, 12B, 11X, and 11Y and light receiving units 11A, 11B, 12X, and 12Y as shown in the drawing. is there.

  Further, it is also effective to make the beams B1 to B4 from the same direction strong against interference by changing the polarization angle through a polarizing lens. Of course, it is also effective to use pulse drive to detect light emission and light reception at different timings. By combining these, it is possible to reliably prevent interference and erroneous detection of a plurality of beams arranged at neighboring positions. .

  FIG. 11 is a detailed view of the wheel detection device according to the embodiment of the present invention. As an advantage of the present invention, it is described that the bicycle A is reliably detected even when the front wheel ASL or ASR of the bicycle A is bent. FIG. (1) is a plan view seen from above the roadway ED, and (2) is a view seen from the side. In particular, the smaller the tire ASL in the bicycle A, the greater the tire ASL may bend by bending the handle when traveling in the passage as shown in (1). The figure shows a state bent 45 degrees.

In FIG. 11 (2), when the bicycle A of the assumed minimum tire ASL is detected by the wheel detectors 11 and 12, the case where the tire ASL is bent 45 degrees as in (1) is compared with the straight state. As shown. Even when the smallest tire ASL of the bicycle A is bent 45 degrees, the tire outer diameter X and the rim inner diameter Y (see FIG. 6 (2)) can be accommodated between the first and second beams B1 and B2. Thus, the same detection state as the straight state can be obtained. As a result, even if the tire ASL of the bicycle A is bent 45 degrees (even if the tire ASL is bent 45 degrees), the bicycle can be reliably determined.

When FIG. 11 (2) is described in detail, the most different in the side view between the straight tire ASL and the 45-degree bent tire ASL is the portion of the outer diameter difference between the diagonally lower and upper diagonal of the tire ASL. The tire ASL can be detected by the first and second beams B1 and B2 with almost no part of this portion, and the state in which the fourth beam B4 has not yet been detected is obtained. In the embodiment of the invention, it is clearly shown that the tire ASL bent about 45 degrees can be accurately determined as the bicycle A.
<Other Example 2>

  Although not specifically shown, when the wheel detection devices 11 and 12 according to the embodiment of the present invention are arranged so that two sets are close to each other in the traveling direction of the road ED, it is determined whether or not these detection signal patterns are repeated in the same manner. Thus, the user's foot HL and the bicycle A or the motorcycle M can be reliably identified.

In particular, it is a place where a small animal may be jealous, or considering that the user uses a pet, the wheel detectors 11 and 12 of the embodiment of the present invention are arranged close to each other , By outputting the detection signal of the bicycle A or the motorcycle M only when each detection signal pattern is repeated twice, a robust wheel detection device that is extremely unlikely to be erroneously detected is realized.

  The configuration of the wheel detection device described in the embodiment of the present invention is an example, and the above-described embodiment of the present invention is a preferred specific example of the present invention, with various technically preferable limitations. However, the technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention.

The technology of the present invention is expected to be installed and used at an entrance or exit of a pay bicycle / motorcycle combined parking lot.

10 Parking ticket issuing machine ED Entrance road (vehicle surface)
11, 12 Wheel detection device B1-B4 Beam 11A-11D Light-receiving part 12A-12D Light-emitting part A Bicycle M Motorcycle AS, MS Front wheel H User

Claims (3)

A bicycle and a motorcycle according to a light reception detection pattern on the other side of a plurality of beams emitted from one side of a pair of light emitting and receiving devices installed opposite to each other on both sides of a road on which the bicycle or motorcycle runs A wheel detection device capable of detecting and detecting
At least the height of the reference beam from the road surface is arranged at a height position approximately equal to the center position of the front wheel of the smallest diameter assumed from the height from the road surface, at a position away from the road surface. by the plurality of beams to detect a difference in thickness to the outer diameter and the rim inner diameter portion in the traveling direction front side of the front wheel has been detected, to determine the thickness of the front wheel tires, bicycles and motorcycles from the determination result A wheel detection device characterized by identifying the wheel . A pair of light emitting / receiving devices are installed facing both sides of a roadway on which a bicycle or a motorcycle runs, and the other four beams emitted from one side of the installed light emitting / receiving devices are on the other side A wheel detection device for detecting a bicycle and a motorcycle according to a light reception detection pattern,
Of the four beams, the first beam (B1) is spaced from the road surface and has a height substantially equal to the center position of the smallest tire of the bicycle, and the second beam (B2) is the first beam (B2). The third beam (B3) is disposed obliquely below the traveling direction at a distance longer than the thickness (W1) of the bicycle tire and shorter than the thickness (W2) of the motorcycle tire. ) Above the position offset in the direction of the line connecting the first and second beams (B1) and (B2) further than the second beam (B2), and the first and second beams (B1). ) And (B2) are arranged at the middle of the height from the road surface, and the fourth beam (B4) is further in the first and second beams (B1) and (B2) than the second beam (B2). Below the position offset in the direction of the line connecting Second beam and (B2) be disposed intermediate the height of the car road, the light receiving detection pattern at the other side of each beam, to output to determine the bicycles and motorcycles and other foreign matter The wheel detection device according to claim 1, wherein 3. The wheel detection device according to claim 1, wherein the light emission direction of any one or two of the beams is different from that of the other beams. 4.

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