JP2010031495A - Vehicle sensing device for flap parking garage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle sensing device for a flap parking garage capable of securing a stable vehicle sensing performance by solving problems wherein, depending on the shape of the bottom part of a vehicle to be parked, a magnetic line of force transmitted from the transmission coil of a vehicle sensor does not properly reach the receiving coil, and the sensor cannot sense the vehicle. <P>SOLUTION: A vehicle sensing part 20 is disposed continuously with an end bearing structural part 13 serving as a pivot for the turning operation of the raising and lowering of the flap plate 11 of the flap parking garage 10. The transmission coil 22 and the receiving coil 23 are installed on the base board 21 of the vehicle sensing part 20 at an interval in the longitudinal direction. The base board 21 is formed in such a manner that the end bearing structural part 13 of the flap board 11 is positioned on the rear surface side of the base board 21 in the lateral direction, and tilted in the direction in which one end of the long side of the base board 21 is brought into contact with or in proximity to a flap device mounting surface. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle detection device suitable for use in a flap type parking lot.

  When a flap-type parking device provided for each parking area detects a vehicle that has entered, the flap plate is raised on the bottom side of the parked vehicle, or the flap plate is applied to the bottom of the parked vehicle. In a flap-type parking lot that is configured to prevent the parked vehicle from leaving before the fee is settled by rotating it, the vehicle detection device that detects the presence or absence of the parked vehicle is A loop coil type or a magnetic sensor type is generally used.

  However, in recent years, the demand for an integrated device that is integrally equipped with a flap device that prevents the parked vehicle from leaving and a vehicle detection device is gradually increasing. The integrated device integrates the flap device and the detection device, so installation work can be done easily and the entire device including the vehicle detection device can be inspected at the factory shipment stage. It is expected that it will spread further in the future.

Patent Document 1 described below shows an example of the integrated device. In the invention of Patent Document 1, a vehicle detection sensor is incorporated in a locking device (flap device) that stands up between front and rear tires of a parked vehicle so as to improve vehicle detection reliability. As a parking vehicle exit prevention device, the bearing portion of the rotating shaft is covered on the extended end side of the locking portion (flap plate) extending toward the center of the parking section of the locking device (flap device) And a vehicle detection sensor including a transmission unit including a transmission coil and a reception unit including a reception coil is housed and disposed in the cover.
JP2007-205018

  However, in the parked vehicle exit prevention device described in Patent Document 1, the bottom convex portion of the parked vehicle and the peripheral structure of the bearing portion are extremely close to each other depending on the shape of the bottom of the parked vehicle and the parked position. In such a case, the magnetic flux transmitted from the transmission coil of the vehicle detection sensor passes through the convex structure at the bottom of the parked vehicle and the peripheral structure of the bearing portion. There was a problem of malfunction such that the vehicle could not be detected as a result and the vehicle could not be detected.

  The conventional configuration will be described with reference to the drawings. FIG. 9 is a perspective view illustrating the configuration of the conventional flap type parking apparatus 100. In FIG. 9, a frame line LX indicating the width of the parking area PA of the flap type parking lot. Above, a driving unit 110 for driving the flap plate 101 is located, and a slope portion 102 for facilitating getting on the flap plate 101 when the vehicle enters, and the flap plate 101 on the opposite side are parked in parallel. Located in the vicinity of the center in the longitudinal direction of the area PA, the end bearing structure 103 is disposed at the front end of the flap plate 101 in a state of being located inside the resin cover 104. Further, a vehicle detection device generally indicated by a reference numeral 100 </ b> X composed of a transmission coil 105 and a reception coil 106 is arranged inside the cover 104 at the end. In the vehicle detection device 100X, the transmission coil 105 and the reception coil 106 are fixed on the base plate 107 so as to incline in a direction facing each other at a certain angle, and the transmission coil 105 and the reception coil 106 are sloped by wiring (not shown). The drive unit 110 is connected to the drive unit 110 through the inside of the unit 102, and a control circuit (not shown) is mounted in the drive unit 110.

  The principle of the vehicle detection device 100X using the transmission coil 105 and the reception coil 106 is a well-known technique. Basically, a magnetic loop is formed between the transmission coil 105, the reception coil 106, and the base plate 107, and the periphery thereof is formed. When a magnetic body such as a parked vehicle CR is positioned, the state of the magnetic loop changes to detect a change in the state of the magnetic flux of the receiving coil 106. However, the role of the base plate 107 is to prevent leakage of magnetic flux. In addition to the purpose of preventing and increasing the detection distance, there is also an object of preventing the vehicle detection performance from being influenced by structures, wiring, reinforcing bars, etc. that may be inside the ground of the parking area PA. Further, particularly in a cold region, it is necessary to reliably eliminate the influence of the heat pipe and heater for road heating in order to stably operate the magnetic vehicle detection device. The base plate 107 used for such a purpose is preferably a soft magnetic material, and a material having a high relative permeability such as iron, silicon iron, and permalloy is used.

Next, the operation of the conventional vehicle detection device 100X will be described based on the description of FIG.
FIG. 10 (1) shows the state of the vehicle detection device 100X when there is no parked vehicle CR, and shows the magnetic lines of force MC transmitted from the transmission coil 105 as a model, and the magnetic lines of force MC in this state are the reception coils. In the vicinity of 106, the level is low, and the receiving coil 106 is not magnetically detected. In addition, the end bearing structure 103 described above is provided between the transmission coil 105 and the reception coil 106, but is located on the back side in the drawing, from the surface connecting the center position of the transmission coil 105 and the reception coil 106 Since these are separated from each other, there is usually no influence of the end bearing structure portion 103.

  FIG. 10 (2) shows the state of the vehicle detection device 100X when there is a parked vehicle, and shows a magnetic force line MC transmitted from the transmission coil 105 as a model. The magnetic force line MC is a magnetic loop formed by a magnetic body at the vehicle bottom CX. Therefore, the receiving coil 106 is also reached, and the receiving coil 106 detects magnetism. If the vehicle bottom CX is flat as shown in this figure, this model magnetic flux state can be reliably detected, but an actual parked vehicle may not always have a flat bottom. However, it can be easily imagined that the vehicle has a complicated shape, but basically no matter how uneven it is, the magnetic flux passes through the surface and a loop is formed within the range of the base plate 107. Therefore, it is supposed that the difference from the state where there is no vehicle can be reliably detected by the receiving coil 106.

  (A) and (b) of FIG. 10 (3) are a front view and a side view showing a state in which the protrusion CZ protrudes toward the road surface at the bottom of the vehicle. It shows a state where the vehicle is reliably detected.

  (A) and (b) of FIG. 10 (4) are a front view and a side view showing a state in which the protrusion CZ protrudes toward the road surface PX of the parking area PA at the bottom of the vehicle, and the protrusion CZ Shows a state in which the end bearing structure portion 103 is located in the vicinity of. In such a positional relationship, a magnetic loop is formed in which the magnetic lines of force MC transmitted from the transmission coil 105 are attracted to the protrusion CZ of the vehicle bottom CX and then return to the base plate 107 through the end bearing structure 103. There are things to do. In this case, the detection state is equivalent to the magnetic detection state on the receiving coil 106 in the state shown in FIG. 10 (1) at the beginning, and the vehicle detection output that there is no parked vehicle remains, that is, the vehicle. May cause detection errors.

  In order to avoid this, if the end bearing structure 103 is configured to be far away from the surface connecting the centers of the transmission coil 105 and the reception coil 106 so that the end bearing structure 103 is not affected by the unevenness of the vehicle bottom CX. However, if it does so, the lateral width of the vehicle detection apparatus 100X will become large, and there also exists a problem that an apparatus will raise a cost.

  The vehicle detection device 100X may be attached separately from the end bearing structure portion 103 of the flap device 100. However, it is necessary to embed the wiring. Problems that affect the magnetic loop must also be considered separately.

  Therefore, the technical problem of the present invention is to solve the problem that depending on the shape of the bottom of the parked vehicle, the magnetic field lines transmitted from the transmission coil of the vehicle detection device may not properly reach the reception coil and the vehicle may not be detected. An object of the present invention is to provide a flap type parking vehicle detection device that can ensure stable vehicle detection performance.

(1) In order to solve the above technical problem, a flap type parking vehicle detection device according to claim 1 of the present invention is a vehicle parked in a parking area in accordance with a change in magnetic flux from a transmission coil to a reception coil. When the presence of the vehicle is detected, the flap plate of the flap device is raised and rotated on the bottom surface side of the parked vehicle, or the flap plate is brought into contact with the bottom surface of the parked vehicle and rotated before parking. A flap type vehicle detection device for a parking lot configured to prevent the vehicle from leaving, a vehicle detection unit is attached to one end of the flap device, and the transmission coil and the reception coil are provided in the detection unit. Inclinations that are spaced in the entrance / exit direction of the parked vehicle, tilted in the front-rear direction so as to face each other at a fixed angle, and tilted in the lateral direction perpendicular to the entrance / exit direction of the parked vehicle It is characterized by being configured by attaching the energized state.

(2) Further, in the flap type parking lot vehicle detection device according to claim 2 of the present invention, the transmission coil and the reception coil are placed on the base plate provided inside the vehicle detection unit. The base plate to which the coils for transmission and reception are attached is attached to the flap device with respect to the installation surface of the flap device. The transmission coil and the reception coil are attached in an inclined posture state by being inclined and attached in a lateral direction opposite to the flap plate in the direction of the rotation axis.

(3) Further, the flap type parking garage vehicle detection device according to claim 3 of the present invention is provided with an attachment angle attached to the inclined posture state in which the transmission coil and the reception coil are inclined in the horizontal direction or the base. An inclination angle at which the plate is attached while being inclined in the lateral and transverse direction opposite to the flap plate in the direction of the rotation axis of the flap plate is 25 ° to 35 ° with respect to the installation surface of the flap device.

(4) Moreover, the flap type parking garage vehicle detection device according to claim 4 of the present invention is provided with a control unit for controlling the transmission coil and the reception coil on the back surface of the base plate attached in the inclined posture state. It is characterized by having.

(5) Moreover, the flap type parking lot vehicle detection device according to claim 5 of the present invention covers the entire vehicle detection device including the transmission coil and the reception coil with a synthetic resin cover chamber, and this cover chamber. And the surrounding portions of the transmitting coil and the receiving coil above the base plate are filled with a synthetic resin filler.

(6) Further, in the flap type parking lot vehicle detection device according to claim 6 of the present invention, vehicle detection is provided on the inner side of the synthetic resin cover chamber covering the entire vehicle detection unit including the transmission coil and the reception coil. A mounting portion for fixing the entire portion to the grounding surface of the flap device with a bolt / nut is provided, and the fixing operation of the mounting portion with the bolt / nut can be performed from the outside of the cover chamber on the inner side surface of the cover chamber. A cover member that can be provided from the outside of the cover chamber that closes the opening at the root end of the slope member that forms an inclination for riding on the parked vehicle provided in the flap device. It is characterized by the continuous installation.

  According to the means according to claims 1 and 2 described in the above (1) and (2), the transmitting coil and the receiving coil are mounted in the inclined posture in the lateral direction opposite to the flap plate in the rotation axis direction of the flap plate. Therefore, depending on the shape of the bottom of the parked vehicle and the parked position, even if the convex part of the parked vehicle and the rotation support shaft of the flap plate and its bearing structure are in close proximity, The magnetic flux transmitted from the transmission coil of the vehicle detection sensor does not pass directly from the convex part at the bottom of the parked vehicle directly to the rotation support shaft of the flap plate or its bearing structure, and reaches the reception coil appropriately. Thus, vehicle detection can be reliably performed.

  According to the means according to claim 3 described in the above (3), mounting is possible without increasing the width of the entire vehicle detection unit including the base plate while maintaining the detection performance of the parked vehicle. Become.

  According to the means according to claim 4 described in the above (4), the vehicle detection device can be arranged in the proximity of the coil and the control circuit by arranging the electric circuit parts in close proximity without affecting the change in the magnetic flux between the transmission coil and the reception coil. The unit configuration includes a portion, and the configuration is compactly stored, space efficiency is good, and the vehicle detection device is versatile.

  According to the means according to claim 5 described in (5) above, it is possible to improve the strength of the inside of the cover chamber and to ensure waterproofness by sealing by filling resin around the transmission coil and the reception coil, Even if there is a damage due to riding on a tire of a parked vehicle or a crack in the cover chamber, the operation of the vehicle detection device can be stably maintained.

  According to the means according to claim 6 described in (6) above, the parked vehicle in which the structure, the mounting bolts, and the like of the mounting portion of the entire vehicle detection device are located between the transmitting coil and the receiving coil, the base plate, and the periphery thereof. It is possible to maintain stable vehicle detection performance without affecting the magnetic loop formed by the structure. That is, when a mounting bolt or the like is located in the magnetic loop, it is possible to prevent the influence of the magnetic loop state from being changed due to rusting or loosening due to secular change.

  Further, according to the means according to claim 6 described in the above (6), since the mounting portion of the entire vehicle detection device is covered in an inoperable state by the cover member of the slope member in use, a bolt etc. It is refreshing without being exposed, and can be prevented from being removed or taken away by mischief, and since the cover action by the cover member is constituted by the slope member, it can be realized at low cost without increasing the cost.

  As described above, according to the flap type parking vehicle detection device of the present invention, depending on the shape of the bottom of the parked vehicle, the magnetic lines transmitted from the transmission coil of the vehicle detection device do not properly reach the reception coil. In addition, it is possible to solve the problem that the vehicle cannot be detected, and to provide a flap type parking vehicle detection device that can ensure stable vehicle detection performance.

  In the following, an embodiment of the vehicle detection device for a flap type parking lot according to the present invention will be described in detail with reference to the drawings, but the embodiment described here is a preferred specific example of the present invention and is considered to be the best technically. However, the technical scope of the present invention is not limited to these embodiments unless specifically described in the claims to limit the present invention.

  FIG. 1 shows an embodiment of a flap type parking apparatus including a vehicle detection apparatus according to an embodiment of the present invention. FIG. 1 (1) is a plan view, FIG. 1 (2) is a side view, and FIG. ) Shows a rear view. In these drawings, the parking area PA is divided into a predetermined size within the parking lot site by a line LX such as white line paint, and a parking stop PV on the far side in the vehicle approach direction of the parking area PA. Is installed at the center of the parking area PA in the vehicle entry direction, and a flap type parking device generally indicated by reference numeral 10 is installed. Between the tires CS and CT before and after the vehicle CR, the flap plate 11 of the flap type parking apparatus 10 is disposed.

  Further, in FIG. 1, an end bearing structure portion (not shown) is configured at the end portion of the flap plate 11 of the flap type parking device 10, but adjacent to the end portion of the flap type parking device 10, The vehicle detection part shown with the code | symbol 20 is connected. The vehicle detection unit 20 is located substantially in the center in the width direction of the parking area PA, and detects the bottom CX of the parked vehicle CR. Further, in the figure, reference numeral 30 denotes a drive unit attached to the root end of the flap type parking apparatus 10, and an operation mechanism (not shown) that rotates the flap plate 11 from a tilted state to a standing state. Is contained.

  The parked vehicle CR illustrated in FIG. 1 is, for example, an off-road specification four-wheel drive vehicle, and a complex mechanism is arranged on the bottom CX of the parked vehicle CR, but a characteristic is a center differential CZ. This is a differential for controlling the rotational speeds of the front and rear tires CS and CT, and is often structurally substantially protruded in the road surface direction substantially at the center of the vehicle bottom CX. Thus, even when there is a structure that protrudes significantly at the vehicle bottom CX, the vehicle detection unit 20 needs to normally detect the presence or absence of the vehicle CR.

  2 is an external view showing an embodiment of the flap type parking apparatus 10 in which the vehicle detection apparatus according to the present invention is implemented, and FIGS. 3 (1) and 3 (2) are along the plan view and the XX line. 4 is an external view of the flap type parking apparatus 10 shown with the slope plate 12 removed. In these drawings, the reference numeral 11X indicates the flap plate 11. As shown in FIG. 4, the operation mechanism provided in the drive unit 30 is provided with the vehicle detection device 20 in the drive unit 30 by the rotation lever that rotates from the tilted state to the standing state. While the flap plate 11 is turned upright to stop the parked vehicle CR at the parking position, when the parking fee is paid, the operating mechanism turns the flap plate 11 to the state shown in FIG. , A mechanism that allows parked vehicle CR to leave It is made. Further, in the figure, reference numeral 20P denotes a synthetic resin cover chamber that covers the entire vehicle detector 20.

  3 (2) and FIG. 4 and FIG. 7, reference numeral 13 denotes an end bearing structure that rotatably supports the support shaft 11A of the flap plate 11, and this end bearing structure. As shown in FIG. 4, 13 is fixed to the road surface in the parking area PA using anchor bolts 13 </ b> T in contact with the inner surface of the vehicle detection unit 20.

  Next, the internal configuration of the vehicle detection unit 20 described above will be described with reference to the drawings. FIG. 5 (1) is a plan view, FIGS. 5 (2) and 5 (3) are side views and front views, and FIG. 6 is a perspective view seen from the back side, FIG. 6 (2) is a perspective view seen from the front side, and FIGS. 7 (1) and 7 (2) are a side view and a front view explaining the operation of the vehicle detection device 20. In these drawings, reference numeral 21 denotes a base plate that is formed in a long rectangular shape. The base plate 21 has a plate surface inside the vehicle detection unit 20 that is formed in a substantially box-like shape. The whole is attached to the inclined posture so as to incline outwardly obliquely downward. In addition, the side view of the vehicle detection unit 20 in FIG. 5 (2) is a view seen from the opposite direction to the rear view of the installation state of the flap type parking apparatus 10 shown in FIG. 1 (2). The front view in 5 (3) is a view seen from the same direction as the side view shown in FIG. 1 (3).

  The transmitting coil 22 and the receiving coil 23 are inclined 20 degrees from the vertical state with respect to the base plate 21 with respect to the plate surface inclined outwardly from the base plate 21, and the inclined state is It is fixed to the plate surface by a holding member (not shown) so that it can be maintained.

  More specifically, the mounting structure of the base plate 21 will be described with reference to the drawings. In FIG. 7, the end bearing structure portion 13 of the flap plate 11 faces the back side of the base plate 21 in the width direction of the long rectangular base plate 21. The base plate 21 is inclined so that one end of the long piece is in contact with or close to the attachment surface of the flap device 10 (the road surface PX of the parking area PA). In other words, the end bearing structure portion 13 of the flap plate 11 may be inclined so as not to protrude from the upper surface portion of the base plate 21. The transmitting coil 22 and the receiving coil 23 are installed so that the width direction is perpendicular to the inclined base plate 21 and the longitudinal direction is inclined at a certain angle in the direction facing each other.

  According to the above configuration, depending on the shape of the bottom portion CX of the parked vehicle CR and the parked position, the convex portion CZ of the bottom portion CX of the parked vehicle CR and the rotation support shaft of the flap plate 11 and its bearing structure are very close to each other. The magnetic lines of force MC transmitted from the transmission coil 22 of the vehicle detection device 20 are moved from the convex portion CZ of the bottom CX of the parked vehicle CR to the rotation support shaft of the flap plate 11 and its bearing structure even in the case of the above positional relationship. The vehicle can be reliably detected by appropriately reaching the receiving coil 23 without going directly to the receiver. Of course, it is clear that the vehicle detection is surely performed even in the positional relationship of the state of FIG.

  At this time, the inclination angle of the base plate 21 is preferably in the range of 25 ° to 35 ° with respect to the road surface PX, particularly 30 °. If the inclination angle is 30 °, the height of the vehicle detection device is set. (It needs to be lower than the specification of the lowest height of the parked vehicle CR), width (approximately the same as the conventional), vehicle detection performance (detection performance will not be reduced if it is about 30 ° from the distribution / spread state of magnetic flux) Can meet the requirements.

  In FIG. 7, a control unit 30 as a control unit for the transmission coil 22 and the reception coil 23 is disposed on the back surface of the base plate 21 in an inclined posture. According to this configuration, the vehicle detection unit 20 includes a coil and a control circuit by arranging electric circuit components close to each other without affecting the change in magnetic flux between the transmission coil 22 and the reception coil 23, And the structure is stored compactly, space efficiency is good, and it becomes a versatile structure as a vehicle detection apparatus.

  Furthermore, since it is not necessary to route the high-frequency signals of the transmission coil 22 and the reception coil 23 for a long time, noise resistance is improved, and leakage of oscillation current on the vehicle detection unit 20 side may affect surrounding wireless devices. No. Only the vehicle detection determination result needs to be output from the control unit 30 (see FIG. 6 to be described later), and the output may pass through the driving unit of the flap type parking apparatus 10 or a centralized management fee (not shown) It may be connected to a payment machine.

  Further, in the present invention, the entire vehicle detection unit 20 including the base plate 21 is covered with a resin cover chamber 20P as shown in FIGS. 2 to 7, and further, the transmission coil 22 and the reception in the space inside the cover chamber 20P. By filling the coil 23 side with a resin filler PR as shown in FIG. 7, strength and waterproofness can be ensured. In that case, the filling resin PR is preferably an epoxy resin or ethylene vinyl chloride or acetate acetate resin used in a general glue gun.

  Further, in FIG. 7, a mounting portion 25 of the entire vehicle detection unit 20 including the base plate 21 is formed integrally with the base plate 21 on the back surface side of the inclined base plate 21. By fastening the protruding anchor bolt 25T with the nut 25S, the anchor bolt 25T can be firmly fixed in strength, and even if it is stepped on the tires CS and CT of the vehicle CR, the position does not shift or the mounting is not wobbled.

  In order to prevent the mounting portion 25 from affecting the performance of the vehicle detection unit 20, the mounting portion 25 is made of a non-magnetic material, so that the performance is still stable. What is necessary is just to comprise so that it may fix to the board 21 integrally.

  In the present invention, a cover member 12A is extended in a substantially L shape at the end of the slope plate 12 so as to cover a part of the side surface of the vehicle detection unit 20, and inside the extended cover member 12A. The above-mentioned end bearing structure portion 13 is arranged, and the end bearing structure portion 13 is fixed by the anchor bolt 13T protruding from the ground as described above. Therefore, by removing the slope plate 12, the end bearing structure 13 can be attached and detached, that is, the flap plate 11 can be attached and detached freely.

  Furthermore, FIG. 4 shows the external appearance of the flap type parking apparatus 10 including the vehicle detection part 20 of the Example of this invention, and shows the state which removed the slope board 12. FIG. In this state, the attachment opening 20R formed in the inner surface of the vehicle detection unit 20 can be operated from the outside. At this time, by operating the flap plate 11 in an upright state as shown in the figure, it is possible to easily operate from the outside through the attachment opening 20L on the opposite side (see FIG. 6). Therefore, the attachment part 25 shown in FIG. 7 can be attached and detached, that is, the vehicle detection part 20 can be attached and detached.

  Each drawing shown in FIG. 5 explains the configuration of the vehicle detection unit 20 described above in a state where the inside is seen through, FIG. 5 (1) is a plan view, (2) is a side view, and (3). 6 shows a front view, and each figure of FIG. 6 also explains the configuration of the vehicle detection unit 20 in a state where the inside is seen through, and FIG. 6 (1) is from the back side (inner side side). A perspective view seen, (2) is a perspective view seen from the front side (outer side), and as is clear from these drawings, on the back side (inner side) of the cover chamber 20P constituting the vehicle detection unit 20 The two left and right attachment openings 20R and 20L are formed so as to allow the attachment part 25 to be attached and detached.

  In FIGS. 6A and 6B, reference numeral 25A denotes a mounting plate that is a component of the mounting portion 25 that is bent inside the bottom surface of the vehicle detection unit 20, and the left and right mountings are attached to the mounting plate 25A. The aforementioned insertion holes 25R and 25L for the anchor bolt 25T are provided in alignment with the openings 20R and 20L.

  From the above configuration, according to the present invention, the entire mounting portion 25 of the vehicle detection unit 20 is covered with the cover member 12A of the slope plate 12 in an inoperable state, so that the bolts and the like are exposed in appearance. Therefore, it is possible to prevent the removal and removal due to mischief, and since this is constituted by the conventional slope plate 12, it can be realized at low cost without increasing the cost.

  FIG. 8 is a block diagram illustrating the configuration of the control circuit unit 40 of the vehicle detection unit 20 according to the embodiment of the present invention. The vehicle detection unit 20 of the embodiment basically includes an oscillation circuit 40A and a transmission circuit 40B. Then, an alternating magnetic flux is transmitted from the transmission coil 22 at an oscillation frequency of several kHz, an electromotive force generated from the reception coil 23 in the reception circuit 41 is amplified by a direct current in the amplification circuit 42, and then the oscillation frequency is generated in the band pass filter 43. If the noise is removed, the detection unit 44 determines that there is a vehicle if the noise level is equal to or higher than a certain level, and the output unit 45 outputs the determination result as ON / OFF.

The Example of the flap type parking apparatus provided with the vehicle detection apparatus which concerns on this invention is shown, Comprising: (1) is a top view, (2) is a side view, (3) is a rear view. The external appearance perspective view of the flap type parking apparatus containing the vehicle detection apparatus which concerns on this invention. The external appearance of the flap type parking apparatus containing the vehicle detection apparatus which concerns on this invention is shown, (1) is a top view, (2) is sectional drawing along the XX line of (1). The external appearance perspective view which removed and showed the slope board of the flap type parking apparatus containing the vehicle detection apparatus which concerns on this invention. The external appearance of the vehicle detection part which concerns on the Example of this invention is shown, (1) is a top view, (2) is a side view, (3) is a front view. The external appearance perspective view of the vehicle detection part which concerns on the Example of this invention is shown, (1) is the perspective view seen from the back side, (2) is the perspective view seen from the front side. It demonstrates operation | movement of the vehicle detection part which concerns on the Example of this invention, Comprising: (1) is a side view, (2) is a front view. The block diagram of the vehicle detection apparatus of the Example of this invention. The external appearance perspective view which showed the conventional flap type parking apparatus. Operation | movement explanatory drawing of the conventional vehicle detection apparatus.

Explanation of symbols

PA parking area PX road surface CR parked vehicle CS, CT front and rear tires CZ center differential 10 flap type parking device 11 flap plate 11A support shaft 12 slope plate 12A cover member 13 end bearing structure portion 13T anchor bolt 20 vehicle detection portion 20P synthetic resin Cover chamber PR Synthetic resin filler 20L, 20R Mounting opening 21 Base plate 22 Transmitting coil 23 Receiving coil 25 Mounting section 25T Anchor bolt 30 Control section

Claims (6)

When the presence of a vehicle parked in the parking area is detected according to the change in the magnetic flux from the transmission coil to the reception coil, the flap plate of the flap device is erected on the bottom side of the parked vehicle, or the flap plate is It is a vehicle detection device for a flap type parking lot that is configured to prevent the parked vehicle from leaving before being settled by contacting and rotating the bottom surface of the parked vehicle,
A vehicle detector is attached to one end of the flap device, and in the detector, the transmitter coil and the receiver coil are spaced in the entrance / exit direction of the parked vehicle and face each other at a constant angle. A flap type vehicle detection device for a parking lot, which is configured to be inclined and attached to an inclined posture state inclined in a lateral direction perpendicular to an entrance / exit direction of the parked vehicle.   On the base plate provided inside the vehicle detection unit, the transmission coil and the reception coil are mounted in an inclined manner so that they are spaced apart from each other in the entrance / exit direction of the parked vehicle and face each other at a fixed angle. By attaching the entire base plate to which the coils for trust and reception are attached to the installation surface of the flap device by inclining in the lateral direction opposite to the flap plate in the rotation axis direction of the flap plate, the transmission is performed. 2. The flap type vehicle detection device for a parking lot according to claim 1, wherein the coil and the receiving coil are attached in an inclined posture state.   The mounting angle at which the transmitting coil and the receiving coil are tilted in the laterally inclined direction or the base plate is tilted in the lateral direction opposite to the flap plate in the direction of the rotation axis of the flap plate. 3. The flap type vehicle detection device for a parking lot according to claim 1, wherein an inclination angle is 25 ° to 35 ° with respect to an installation surface of the flap device.   4. The flap-type parking vehicle detection device according to claim 2, wherein a control unit that controls the transmission coil and the reception coil is provided on a back surface of a base plate attached in the inclined posture state. .   The entire vehicle detection unit including the transmission coil and the reception coil is covered with a synthetic resin cover chamber, and inside the cover chamber and around the transmission coil and the reception coil above the base plate. 5. The flap type vehicle detection device for a parking lot according to claim 1, wherein the vehicle detection device is filled with a synthetic resin filler.   In the inner part of the synthetic resin cover chamber covering the entire vehicle detection unit including the transmission coil and the reception coil, an attachment unit for fixing the entire vehicle detection unit to the grounding surface of the flap device with a bolt / nut is provided. On the inner surface of the cover chamber, there is provided an opening for fixing the mounting portion with a bolt / nut from the outside of the cover chamber, and an inclination for riding on the parked vehicle provided in the flap device is configured. 6. The flap type vehicle detection device for a parking lot according to claim 2, wherein a cover member for closing the mounting opening is continuously provided at a root end portion of the slope member.

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