JP2013002214A - Mechanical parking lot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanical parking lot capable of reducing the influence of noise when optical protrusion sensors are installed in a room.SOLUTION: A mechanical parking lot guides a vehicle, which enters a room 12, to a storage shelf. The mechanical parking lot includes: a left protrusion sensor 36, a right protrusion sensor 38, a front protrusion sensor 40 and a back protrusion sensor 42 transmitting a detection signal to a control panel 28 when receiving the reflected light of a laser beam emitted to an inspection target range; and a left fan 60 and a right fan 62 stirring air near the vehicle while the vehicle is guided to a vehicle storage area 48 in the room 12. The inspection target ranges of the left protrusion sensor 36 and the right protrusion sensor 38 are different according to an operation mode of the mechanical parking lot 10.

Description

  The present invention relates to a mechanical parking lot that introduces a vehicle that has entered a passenger compartment into a storage shelf.

  In city centers with high population density, complex commercial facilities, and housing complexes, mechanical parking lots that use multiple storage shelves to increase parking efficiency are often used. A mechanical parking lot generally includes a passenger compartment for a driver to get on or off the vehicle, and a storage shelf provided on the ground or underground. Mechanical parking moves the vehicle between the storage shelves and the passenger compartment by the lifting device, such as an elevator.

  If the vehicle parked in the passenger compartment to park in the mechanical parking lot is too large or if the vehicle is parked at a side, the vehicle may interfere with the surroundings when entering the hoistway from the passenger compartment. Therefore, an out-of-door sensor for detecting whether or not the vehicle has stopped outside the normal accommodation area is usually provided in the passenger compartment of the mechanical parking lot.

  For example, Patent Document 1 proposes providing a protruding sensor of a type that emits laser light and receives reflected light in the passenger compartment. This type of protrusion sensor is advantageous in that it can detect a plane protrusion as compared with transmissive type sensor.

JP 2010-255377 A

  In general, since the intensity of reflected light is considerably lower than the intensity of emitted laser light, for example, it is necessary to set the sensitivity of light reception of the protrusion sensor to be correspondingly high. However, if the sensitivity is increased, it is more susceptible to noise.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a mechanical parking lot that can reduce the influence of noise on the protruding sensor when an optical protruding sensor is provided in the passenger compartment.

  One embodiment of the present invention relates to a mechanical parking lot. This mechanical parking lot is a mechanical parking lot that introduces a vehicle that has entered the passenger compartment into the storage shelf, and the vehicle protrudes from the accommodation area while the vehicle is guided to the normal accommodation area in the passenger compartment. When the vehicle is guided to the accommodation area in the passenger compartment, the optical detection device includes a light projecting unit that emits laser light so as to strike the protruding part, and a light receiving unit that receives reflected light returning from the protruding part. And a fan for agitating the air in the vicinity of the vehicle.

  According to this aspect, even when a noise source exists in the air near the vehicle while the vehicle is guided to the accommodation area in the passenger compartment, the influence of the noise on the optical detection device can be reduced.

  Another aspect of the present invention is also a mechanical parking lot. This mechanical parking lot is a mechanical parking lot that introduces a vehicle that has entered the passenger compartment to the storage shelf. When the vehicle enters the passenger compartment, it protrudes from the normal accommodation area. An optical detection device is provided that includes a light projecting unit that emits a laser beam so as to strike the part, and a light receiving unit that receives reflected light returning from the protruding part. When the light receiving part receives reflected light returning from the protruding part, the range of the space that should be detected as protruding is called the inspection target range, and the inspection target range when the vehicle is guided to the accommodation area in the passenger compartment Is set to be different from the inspection target range when the vehicle is introduced from the passenger compartment to the storage shelf.

  According to this aspect, the inspection object range can be set according to each of the case where the vehicle is guided to the accommodation area in the passenger compartment and the case where the vehicle is introduced from the passenger compartment to the storage shelf.

  It should be noted that any combination of the above-described constituent elements, or those obtained by replacing the constituent elements and expressions of the present invention with each other between apparatuses, methods, systems, computer programs, recording media storing computer programs, and the like are also included in the present invention. It is effective as an embodiment of

  According to the present invention, when an optical protrusion sensor is provided in the passenger compartment, the influence of noise on the protrusion sensor can be reduced.

It is a front view of the mechanical parking lot which concerns on embodiment. It is a top view of 2F storage shelf of FIG. It is a top view of the passenger compartment of FIG. FIG. 4 is a cross-sectional perspective view taken along line AA in FIG. 3. FIG. 4 is a cross-sectional perspective view taken along line BB in FIG. 3. It is a block diagram which shows the function and structure of a control system of the mechanical parking lot of FIG. It is a flowchart which shows a series of processes at the time of warehousing a vehicle in the mechanical parking lot of FIG.

  Hereinafter, the same or equivalent components and members shown in the respective drawings are denoted by the same reference numerals, and repeated descriptions thereof are omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in the drawings, some of the members that are not important for describing the embodiment are omitted.

  Mechanical parking according to the embodiment introduces a vehicle such as an automobile which has entered the passenger compartment to the storage shelves. This mechanical parking lot guides the vehicle to the accommodation area of the passenger compartment (hereinafter, the operation state of the mechanical parking lot related to this guidance is referred to as a guidance mode), and the vehicle stops at the stop position in the accommodation area. Alternatively, after the attendant gets off, the vehicle is introduced from the passenger compartment to the storage shelf (hereinafter, the operation state of the mechanical parking lot related to this introduction is referred to as a storage mode). This mechanical parking lot has a protrusion sensor for detecting the protrusion of the vehicle from the accommodation area in each of the guidance mode and the entry mode. This protrusion sensor is an optical detection device of a type that receives reflected light of emitted laser light. In the guidance mode, the result of the protrusion detection is used to correct the position of the vehicle, and in the warehousing mode, the result of the protrusion detection is used to determine whether or not warehousing is possible.

  When the vehicle enters the passenger compartment, exhaust gas emitted from the exhaust port of the vehicle drifts in the passenger compartment. In addition, when a vehicle enters the vehicle with water droplets adhering to it in rainy weather or the like, the water droplets evaporate due to the heat generated by the vehicle, and steam drifts into the passenger compartment. Since the laser beam for detection of protrusion hits the exhaust gas or steam drifting in the passenger compartment, the exhaust gas or steam may adversely affect the detection of protrusion.

On the other hand, in the mechanical parking lot according to the embodiment, the following two measures are taken to reduce the adverse effect on the detection of the exhaust gas or steam.
(1) A fan is provided in the passenger compartment, and the air in the vicinity of the vehicle is agitated by operating the fan in the guidance mode.
(2) When the reflected light returning from the protruding part of the vehicle is received by the light receiving part of the protruding sensor, the inspection target range, which is the range of the space to be detected as protruding, is set to be different between the guidance mode and the entry mode. To do. In particular, the inspection target range in the guidance mode is set so as not to include a range corresponding to the position of the exhaust port of the vehicle.

  Normally, the vehicle engine is turned off in the warehousing mode, and the generation of exhaust gas and steam is suppressed or substantially less than in the induction mode. Therefore, in the warehousing mode, the fan operates or stops at a lower speed than in the guidance mode, and the inspection target range in the warehousing mode is set wider than the inspection target range in the guidance mode.

  FIG. 1 is a front view of a mechanical parking lot 10 according to an embodiment. FIG. 2 is a plan view of the 2F storage shelf 14. The mechanical parking lot 10 is a ground-type mechanical parking lot provided in a building 24 provided on the ground. The mechanical parking lot 10 includes 2F storage shelves 14, 3F storage shelves 16, 4F storage shelves 18 provided on the second floor part, the third floor part, and the fourth floor part of the building 24. The first floor portion of the building 24 is used for purposes other than parking, such as commercial spaces.

  The mechanical parking lot 10 further includes a plurality of pallets 32, a moving device group that moves the pallets 32, and a protruding sensor group and a fan group attached to the passenger compartment 12. The protrusion sensor group and the fan group will be described with reference to FIG.

  The pallet 32 is a flat plate member, and the upper surface on which the vehicle is mounted, that is, the vehicle mounting surface is substantially rectangular. The mechanical parking lot 10 is a pallet type parking lot using a pallet 32. The pallet-type mechanical parking lot 10 uses a lifting device 94 to lift and lower the pallet 32 on which the vehicle 20 is mounted, or uses the first transfer device 56 and the second transfer device 58. The vehicle 20 is parked on the storage shelf by moving the pallet 32 in the surface direction.

  Each of the 2F storage shelf 14, the 3F storage shelf 16, and the 4F storage shelf 18 includes 10 parking spaces. The ten parking spaces are arranged in a matrix of 5 rows in the transfer direction (x direction) and two columns in the cross direction (y direction) substantially orthogonal to the transfer direction when viewed in plan. Each parking space is configured to accommodate the pallet 32. The parking space is one parking area (one unit of parking) in the parking room where the vehicle 20 can be parked together with the pallet.

  The boarding / alighting room 12 is provided on the first floor of the building 24. The passenger compartment 12 is provided at the lower end of the hoistway 96 having a substantially rectangular cross section, that is, on the ground surface side. The passenger compartment 12 and the hoistway 96 are connected via a communication hole 26 that is large enough to allow the pallet 32 to pass therethrough. The hoistway 96 is provided along the vertical direction (z direction in the figure). Hoistway 96 communicates with each 2F storage shelves 14,3F storage shelf 16,4F storage shelf 18. Therefore, each storage shelf and the passenger compartment are connected by the hoistway 96.

  When viewed in plan, the substantially rectangular lift frame 88 is supported by four masts 90 provided as support columns at four corners of the hoistway 96 so as to be movable up and down. A first transfer device 56 is mounted on the upper part of the lift frame 88. The lifting device 94 is installed under the floor of the passenger compartment 12 and lifts the lift frame 88 along the hoistway 96. The lift frame 88, the four masts 90, and the lifting device 94 include four lift frames described in Japanese Patent Application Laid-Open Nos. 2009-197417 and 2008-261159 previously filed by the present applicant. The mast and the lifting device can be applied respectively.

  A pallet 32 is mounted on the top of the first transfer device 56. The first transfer device 56 is configured to be able to move the pallet 32 in the transfer direction. The second transfer device 58 is provided in each parking space, and moves the pallet 32 across the parking space. A fall prevention roller 38 is installed between the parking space and the parking space to support the pallet 32 when the pallet 32 moves across the parking space. For example, a transport device described in Japanese Patent Publication No. 7-29681 filed earlier by the present applicant can be applied to the second transfer device 58.

  FIG. 3 is a plan view of the passenger compartment 12. 4 is a cross-sectional perspective view taken along line AA of FIG. In order to make the description clearer, the display of the mast 90, the first transfer device 56, the lift frame 88, and the lifting device 94 is omitted in FIGS. FIG. 3 shows a state in which the pallet 32 is called into the passenger compartment 12 before the vehicle enters the passenger compartment 12. The loading / unloading chamber 12 is substantially rectangular in plan view, and hereinafter, the transfer direction is the left-right direction and the crossing direction is the front-back direction. The front-rear direction is a direction in which the vehicle 20 enters the passenger compartment 12 from the outside.

  Near the center of the front wall of the passenger compartment 12, a vehicle guidance mirror 78 and a vehicle guidance light 80 are attached. The left front wall of the passenger compartment 12 left fan 60, the right fan 62 are respectively mounted on the right side. Both the left fan 60 and the right fan 62 operate at high speed in the guidance mode, and agitate the air on the left side and the right side of the guided vehicle. In particular, the left fan 60 forms an air flow 74 that passes through the vehicle entrance 44 from the back of the passenger compartment 12 on the left side of the guided vehicle and exits to the outside. The right fan 62 creates a similar air flow 76 on the right side of the vehicle.

  The sensor frame 34 is a square pipe extending in the left-right direction, and one end is fixed to the left wall of the passenger compartment 12 and the other end is fixed to the right wall of the passenger compartment 12. The sensor frame 34 is provided on the side opposite to the vehicle entrance 44 of the passenger compartment 12 and on the ceiling side. The left protrusion sensor 36 is attached to the sensor frame 34 via a left bracket 46 made up of bolts, nuts, plates and the like. The right protrusion sensor 38 is attached to the sensor frame 34 via a right bracket 47 configured similarly to the left bracket 46.

  FIG. 5 is a cross-sectional perspective view taken along line BB in FIG. In order to make the description clearer, the display of the mast 90, the first transfer device 56, the lift frame 88, and the lifting device 94 is omitted in FIG. When the vehicle protrudes from the left side of the accommodation area 48 in the guidance mode and the warehousing mode, the left protrusion sensor 36 emits a laser beam so as to hit the protrusion portion. The left protrusion sensor 36 emits laser light having a predetermined wavelength so as to be parallel to the yz plane, and detects light having a wavelength equivalent to that wavelength. The left protrusion sensor 36 swings the laser beam trajectory around the x-axis so that the emitted laser beam trajectory sweeps a predetermined left sweep range. The left sweep range is a plane parallel to the yz plane along the left end of the pallet 32.

  The left sweep range is the same in the guidance mode and the warehousing mode. That is, the left protrusion sensor 36 swings the locus of the laser beam in the same manner in the guidance mode and the warehousing mode. In contrast, the inspection target ranges in the guidance mode and the warehousing mode are two different ranges cut out from the same left sweep range. In particular, the left guidance inspection target range 50 that is the inspection target range in the guidance mode is set to be narrower than the left entry inspection target range 52 that is the inspection target range in the warehousing mode.

  The left guidance inspection target range 50 is a substantially rectangular surface having the position of the left protrusion sensor 36 as a vertex, and does not include the exhaust port range 54 corresponding to the position of the exhaust port 22a of the vehicle 22 mounted on the pallet 32. Is set. The exhaust port range 54 is a range corresponding to the rear portion of the vehicle 22, for example. The left warehousing inspection target range 52 is a substantially rectangular surface having the position of the left protrusion sensor 36 as a vertex, and is set to include the exhaust port range 54. Both the left guidance inspection target range 50 and the left entry inspection target range 52 are set to include a range corresponding to the position or height of the door mirror 22b of the vehicle 22 mounted on the pallet 32.

  Consider a case in which a part of the vehicle protrudes from the left guidance inspection target range 50 during vehicle guidance, that is, crosses the left guidance inspection target range 50. The left protrusion sensor 36 scans the inspection target range 50 at the time of left guidance with a laser beam. A part of such laser light is reflected by the protruding part of the vehicle. Part of the reflected laser light returns to the left protrusion sensor 36. The left protrusion sensor 36 detects the reflected light returning in this manner, and transmits the detection result to a control device such as the operation panel 28. When the left protrusion sensor 36 detects reflected light, the operation panel 28 may display an instruction for eliminating the protrusion on the vehicle guide light 80. The same applies to the protrusion from the left warehousing inspection target range 52 in the warehousing mode.

  The right protrusion sensor 38 is configured in the same manner as the left protrusion sensor 36, and the right guidance inspection target range corresponding to the left guidance inspection target range 50 and the right entry inspection target range 64 corresponding to the left entry inspection target range 52. And having.

  The front protrusion sensor 40 and the rear protrusion sensor 42 are respectively attached to the right wall and the left wall of the passenger compartment 12, and both have a light projecting / receiving function similar to that of the left protrusion sensor 36. The front sweep range 66 of the front protrusion sensor 40 is a surface parallel to the xz plane along the front end of the pallet 32. The inspection target range of the front protrusion sensor 40 is the same in the guidance mode and the warehousing mode, and includes a front sweep range 66 sandwiched between the left warehousing inspection target range 52 and the right warehousing inspection target range 64. The rear sweep range 68 of the rear protrusion sensor 42 is a plane parallel to the xz plane along the rear end of the pallet 32. In other words, the rear sweep range 68 is a range along the vehicle entrance 44 on the vehicle entrance 44 side of the passenger compartment 12. The inspection target range in the warehousing mode of the rear protrusion sensor 42 includes a portion of the rear sweep range 68 sandwiched between the left warehousing inspection target range 52 and the right warehousing inspection target range 64. In the guidance mode, the inspection target range of the trailing protrusion sensor 42 is not set.

  In the guidance mode, the storage area 48 is an area surrounded by the inspection object range 52 at the time of left entry, the inspection object area 64 at the time of right entry, and the inspection object range of the front protrusion sensor 40. In other words, the storage area 48 is set based on the size of the pallet 32. The left protrusion sensor 36, the right protrusion sensor 38, and the front protrusion sensor 40 are positioned so that the left sweep range, the right sweep range, and the front sweep range 66 include the left side surface, the right side surface, and the front surface of the accommodation area 48, respectively. In order to more reliably prevent the vehicle from protruding, the accommodation area 48 may be set smaller than the size of the pallet 32.

  FIG. 6 is a block diagram showing the function and configuration of the control system of the mechanical parking lot 10. Each block shown here can be realized by hardware such as a computer (CPU) (central processing unit) and other elements and mechanical devices, and software can be realized by a computer program or the like. Here, The functional block realized by those cooperation is drawn. Therefore, it is understood by those skilled in the art who have touched this specification that these functional blocks can be realized in various forms by a combination of hardware and software.

  The operation panel 28 includes a warehousing operation reception unit 122, a gate opening / closing unit 124, an inspection target range setting unit 126, a fan operation control unit 128, a protrusion detection unit 130, a vehicle guidance unit 132, and a vehicle warehousing unit 134. And an operation panel side communication unit 136. The left protrusion sensor 36, right protrusion sensor 38, front protrusion sensor 40, rear protrusion sensor 42, left fan 60, and right fan 62 and the operation panel 28 are each connected to a serial interface, Ethernet (registered trademark) or USB (Universal Serial Bus). It is connected by connecting means such as. The operation panel side communication unit 136 controls communication between devices via these connection means.

  The warehousing operation accepting unit 122 is a user interface configured by, for example, a touch panel or a mechanical button, and accepts an instruction to open a gate from a driver or an attendant when the gate (not shown) of the vehicle entrance 44 is closed. The warehousing operation accepting unit 122 accepts a warehousing instruction from a driver or an attendant after the vehicle enters the passenger compartment 12 and stops on the pallet 32. The operation panel 28 operates the mechanical parking lot 10 in the guidance mode from when the warehousing operation reception unit 122 receives an instruction to open the gate until the warehousing instruction is received, and after receiving the warehousing instruction, the mechanical parking lot 10 is Operate in warehousing mode.

  When the warehousing operation reception unit 122 receives an instruction to open the gate, the gate opening / closing unit 124 transmits a control signal to a driving unit (not shown) for driving the gate via the operation panel side communication unit 136 to open the gate. . Gating unit 124, when it is determined that the goods receipt Allowed the vehicle warehousing unit 134, to close the gate to the drive means.

When the warehousing operation accepting unit 122 accepts an instruction to open the gate, the inspection target range setting unit 126 guides the left projecting sensor 36, the right projecting sensor 38, and the rear projecting sensor 42 via the operation panel side communication unit 136. Setting information for setting the inspection target range in the mode is transmitted. This setting information includes, for example, a parameter indicating whether or not to set an inspection target range, an angle that determines when to wait for reflected light of a laser beam emitted at a certain angle, an inspection start time, and an inspection end time. .
When the warehousing operation reception unit 122 receives a warehousing instruction, the inspection target range setting unit 126 transmits setting information for setting the inspection target range in the warehousing mode in the same manner.

  When the warehousing operation receiving unit 122 receives an instruction to open the gate, the fan operation control unit 128 transmits a control signal to the left fan 60 and the right fan 62 via the operation panel side communication unit 136 to operate them at high speed. Fan operation control unit 128 stops left fan 60 and right fan 62 when vehicle warehousing unit 134 determines that warehousing is possible.

  The protrusion detection unit 130 waits for detection signals from the left protrusion sensor 36, the right protrusion sensor 38, the front protrusion sensor 40, and the rear protrusion sensor 42 in both the guidance mode and the warehousing mode. When the protrusion detection unit 130 receives a detection signal from one of the left protrusion sensor 36, the right protrusion sensor 38, the front protrusion sensor 40, and the rear protrusion sensor 42 via the operation panel side communication unit 136, it corresponds to the protrusion sensor. It is detected that the vehicle protrudes on the side.

  The detection signal includes information on a reflection position that is a position where the laser beam is reflected. The protrusion detection unit 130 may monitor information on the reflection position included in the detection signal. The protrusion detection unit 130 receives at least a detection signal corresponding to reflected light from a certain reflection position within the inspection target range, and at least corresponds to reflected light from a reflection position substantially the same as the reflection position within a predetermined period. When one detection signal is received, it may be detected that the vehicle protrudes. In this case, if the reflection at the reflection position is caused by exhaust gas or steam, it is less likely to be detected multiple times in succession, so that the accuracy of the protrusion detection can be increased.

The vehicle guidance unit 132 guides the vehicle to the accommodation area 48 of the passenger compartment 12 by voice or a vehicle guidance light 80 in the guidance mode. When the protrusion is detected by the protrusion detection unit 130 in the guidance mode, the vehicle guide 132 displays an instruction for eliminating the protrusion on the vehicle guide light 80. For example, the vehicle guidance unit 132 displays a left-pointing arrow on the vehicle guidance light 80 when the right-side projection is detected by the detection signal from the right-side projection sensor 38.
When the vehicle guiding unit 132 detects that the vehicle has reached the stop position in the accommodation area 48 by a sensor (not shown) that detects the position of the front wheel of the vehicle, the vehicle guiding unit 132 displays an instruction to stop the vehicle guiding guide light 80. Let

When the warehousing operation accepting unit 122 accepts the warehousing instruction, the vehicle warehousing unit 134 determines whether or not the warehousing can be performed from the viewpoint of protrusion. The vehicle warehousing unit 134 determines that warehousing is possible when the protrusion is not detected by the protrusion detection unit 130 within the predetermined entire range detection period, and determines that warehousing is not possible when the protrusion is detected. When it is determined that the vehicle can be stored, the vehicle storage unit 134 moves the pallet 32 on which the vehicle is mounted from the passenger compartment 12 to a predetermined parking space so that the lifting device 94, the first transfer device 56, and the second transfer device. 58 is controlled. The vehicle warehousing unit 134 determines the movement of the pallet in the mechanical parking lot 10 necessary for this movement using a known puzzle operation algorithm. The vehicle warehousing unit 134 transmits a command to the lifting device 94, the first transfer device 56, and the second transfer device 58 so that the determined movement of the pallet is realized.
When it is determined that entry is not possible, the vehicle storage unit 134 notifies the driver or the staff that the protrusion has been detected.

  The left protrusion sensor 36 includes a left sensor light projecting unit 102, a left sensor light receiving unit 104, a left sensor processing unit 106, a left sensor communication unit 108, and a left sensor setting holding unit 110. The left sensor light projecting unit 102 emits laser light within the left sweep range. When the left sensor light receiving unit 104 receives light having a wavelength equivalent to the wavelength of the laser light emitted by the left sensor light projecting unit 102 and higher than a predetermined intensity, the left sensor processing unit 106 receives a light reception signal. Send. The light received by the left sensor light receiving unit 104 includes reflected light returning from the protruding portion of the vehicle. The left sensor communication unit 108 controls communication with the operation panel 28 via connection means. The left sensor setting holding unit 110 holds setting information transmitted by the inspection target range setting unit 126.

  The left sensor processing unit 106 controls the left sensor light receiving unit 104 with reference to the setting information held by the left sensor setting holding unit 110. When the left sensor light projecting unit 102 emits laser light at an angle, the left sensor processing unit 106 waits for a light reception signal from the inspection start time to the inspection end time corresponding to the angle included in the setting information. Next, when the left sensor light projecting unit 102 changes the angle and emits laser light, the left sensor processing unit 106 performs a similar standby process. The left sensor processing unit 106 performs the same standby processing each time the laser light is emitted from the left sensor light emitting unit 102.

  When the left sensor processing unit 106 receives the light reception signal from the left sensor light receiving unit 104, the left sensor processing unit 106 calculates a time from when the corresponding laser light is emitted until the reflected light returns. The left sensor processing unit 106 calculates the coordinates of the reflection position from the calculated time and the corresponding angle of the laser beam. The left sensor processing unit 106 transmits a detection signal including the calculated coordinates of the reflection position to the operation panel 28 via the left sensor communication unit 108.

  The rear protrusion sensor 42 includes a rear sensor light projecting unit 112, a rear sensor light receiving unit 114, a rear sensor processing unit 116, a rear sensor communication unit 118, and a rear sensor setting holding unit 120. The rear sensor light projecting unit 112, the rear sensor light receiving unit 114, the rear sensor processing unit 116, the rear sensor communication unit 118, and the rear sensor setting holding unit 120 are respectively a left sensor light projecting unit 102, a left sensor light receiving unit 104, and a left sensor processing unit. 106, the left sensor communication unit 108, and the left sensor setting holding unit 110. When the rear sensor processing unit 116 indicates that the parameter included in the setting information held in the rear sensor setting holding unit 120 does not set the inspection target range, the rear sensor light projecting unit 112 stops the laser beam emission. or ignore the received signal from the or the rear light-receiving unit 114 stops generating the light reception signal by the rear light-receiving unit 114.

  In the above-described embodiment, examples of the holding unit are a hard disk and a memory. Based on the description in this specification, each unit is realized by a CPU (not shown), an installed application program module, a system program module, a memory that temporarily stores the contents of data read from the hard disk, and the like. It is understood by those skilled in the art who have touched this specification that they can do this.

Operation | movement of the mechanical parking lot 10 by the above structure is demonstrated.
FIG. 7 is a flowchart showing a series of processes when the vehicle is stored in the mechanical parking lot 10. The driver or the staff stops the vehicle to be parked in front of the closed gate and gets off. A driver or a staff member inputs an instruction to open the gate to the operation panel 28. The operation panel 28 receives an instruction to open the gate (S202). The operation panel 28 transmits the setting information in the guidance mode to the protrusion sensor (S204). The operation panel 28 activates the left fan 60 and the right fan 62 (S206). The operation panel 28 causes the drive means to open the gate (S208).

  While guiding the vehicle, the operation panel 28 waits for the detection signal from the protrusion sensor (S210). Here, the inspection target ranges of the left protrusion sensor 36 and the right protrusion sensor 38 are the narrower left guidance inspection target range 50 and the right guidance inspection range, respectively, and the exhaust port range 54 is excluded from the inspection target range. After that, the inspection target range of the protrusion sensor 42 is not set, and the protrusion behind the vehicle is not checked. When the detection signal is received (Y of S210), the operation panel 28 notifies the driver or the staff of the protrusion via the vehicle guide light 80 (S212). If the vehicle has not yet reached the stop position (N in S214) in a state where no detection signal has been received (N in S210), the operation panel 28 continues to wait for a detection signal from each protrusion sensor (S210). When it is detected that the vehicle has come to the stop position (Y in S214), the operation panel 28 instructs the driver or the staff to stop via the vehicle guidance light 80 (S216).

  The driver or the staff stops the vehicle, stops the engine, and gets off the vehicle. The driver or the staff leaves the boarding / exiting room 12 and inputs a warehousing instruction to the operation panel 28. The operation panel 28 receives an entry instruction (S218). The operation panel 28 transmits the setting information in the warehousing mode to the protrusion sensor (S220). The operation panel 28 determines whether or not warehousing is possible (S222). More specifically, the operation panel 28 waits for detection signals from the front, rear, left and right protrusion sensors during the entire range detection period. Here, the inspection target ranges of the left protrusion sensor 36 and the right protrusion sensor 38 are a wider left inspection inspection range 52 and a right inspection inspection range 64, respectively, and the exhaust outlet range 54 is also included in the inspection inspection range. The inspection target range is also set in the rearward protrusion sensor 42, and the rearward protrusion of the vehicle is checked. When a detection signal is received during the entire range detection period (No in S222), the operation panel 28 determines that entry is not possible and notifies the driver or staff of the protrusion via the entry operation reception unit 122 or the like (S224). For example, the operation panel 28 displays that the protrusion has occurred on the display. The driver or the clerk who has received this display may return to the passenger compartment 12 to correct the position of the vehicle, or may wait for the passage of time without moving the vehicle and input the warehousing instruction again. Considering that exhaust gas and steam diminish with time, the latter is also effective.

  When the detection signal is not received during the whole range detection period (Yes in S222), the operation panel 28 determines that entry is possible and stops the left fan 60 and the right fan 62 (S226). The operation panel 28 causes the driving means to close the gate (S228). The operation panel 28 starts the movement of the pallet 32 from the passenger compartment 12 to the storage shelf (S230).

According to the mechanical parking lot 10 according to the present embodiment, the left fan 60 and the right fan 62 agitate the air in the vicinity of the vehicle being guided in the guidance mode. As a result, exhaust gas and steam emitted from the vehicle being guided are diluted. Further, since the left fan 60 and the right fan 62 generate an air flow from the inside of the passenger compartment 12 to the outside together with the agitation, the exhaust gas and the steam are exhausted to the outside along the flow. As a result, it is possible to reduce the adverse effect of the exhaust gas and steam on the protrusion sensor, and the accuracy of the protrusion detection is improved.
For example, it is possible to reduce the possibility of erroneous detection that is detected when reflected light reflected by exhaust gas or steam returns to the protrusion sensor even though the vehicle does not protrude from the inspection target range.

  Moreover, according to the mechanical parking lot 10 which concerns on this Embodiment, if it determines with warehousing possible in warehousing mode, the left fan 60 and the right fan 62 will be stopped. Therefore, unnecessary power consumption can be suppressed. Even when the fan is operated at a lower speed without stopping, the power consumption can be suppressed.

  Moreover, according to the mechanical parking lot 10 which concerns on this Embodiment, about the left protrusion sensor 36, it sets so that the inspection object range 50 at the time of left guidance and the inspection object range 52 at the time of left warehousing may differ. The same applies to the right protrusion sensor 38. In this way, by setting different inspection object ranges depending on the operation mode of the mechanical parking lot 10, it is possible to appropriately cope with cases where the state of the protrusion detection assumed in each mode is different. That is, it is possible to set an inspection target range more suitable for each mode depending on the mode.

  Further, according to the mechanical parking lot 10 according to the present embodiment, for the left protrusion sensor 36, the left guidance inspection target range 50 is set not to include the exhaust port range 54, and the left entry inspection target range 52 is the exhaust. It is set to include the mouth area 54. The same applies to the right protrusion sensor 38. Therefore, in the guidance mode in which the generation of exhaust gas is relatively large, the detection accuracy can be improved by reducing the influence of the reflected light from the exhaust gas by removing the exhaust port range 54 from the inspection target range. Thereby, for example, the accuracy of guidance display can be improved, and the vehicle can be guided more smoothly. On the other hand, in the warehousing mode in which the generation of exhaust gas is relatively small, it is possible to prevent the detection leakage of the protrusion by expanding the inspection target range to include the exhaust port range 54.

  Moreover, in the mechanical parking lot 10 according to the present embodiment, both the left guidance inspection range 50 and the left entry inspection range 52 are set to include a range corresponding to the position or height of the door mirror 22b. . In general, the most prominent part on the left and right sides of the vehicle is the door mirror. Accordingly, it is possible to detect the protrusion more efficiently with respect to the left and right sides of the vehicle in both the guidance mode and the warehousing mode.

  Further, according to the mechanical parking lot 10 according to the present embodiment, the left sweep range is the same in the guidance mode and the entry mode for the left protrusion sensor 36, and the left guidance inspection range 50 and the left entry inspection are performed. Each of the target ranges 52 is cut out from the same left sweep range. That is, the setting of the left sensor light projecting unit 102 of the left protrusion sensor 36 is not changed between the guidance mode and the warehousing mode, while the inspection target range is set by changing the setting of the left sensor light receiving unit 104. Thus, it is possible to perform efficiently with less steps to change the inspection target range of the induction mode and receiving mode.

  The rear protrusion sensor 42 corresponds to the rear portion of the vehicle and is particularly susceptible to exhaust gas. Therefore, in the mechanical parking lot 10 according to the present embodiment, the inspection target range is not set for the rear protrusion sensor 42 during the guidance mode. Thereby, it is possible to further reduce the adverse effect on the detection of the exhaust gas in the guidance mode.

  The configuration and operation of the mechanical parking lot 10 according to the embodiment have been described above. This embodiment is an exemplification, and it is understood by those skilled in the art that various modifications can be made to combinations of the respective constituent elements, and such modifications are also within the scope of the present invention.

  In the embodiment, the ground type mechanical parking lot 10 in which the passenger compartment 12 is located at the lower end of the hoistway 96 has been described. However, the technical idea of the present embodiment is not limited to that. The present invention can also be applied to the case where it is located at the upper end or when a passenger compartment is provided in the middle of the hoistway. Moreover, although the example in which the mast 90 is installed as a support in the four corners of the hoistway has been described, two masts may be installed on both sides of the hoistway.

  In the embodiment, the case where the mechanical parking lot 10 uses the pallet 32 to move the vehicle has been described. However, the present invention is not limited to this, and the technical idea of the present embodiment protrudes by an optical sensor in the passenger compartment. Applicable to any mechanical parking lot where detection is performed.

  In the embodiment, the case where the operation panel 28 causes the drive means to open the gate after starting the left fan 60 and the right fan 62 has been described. However, the present invention is not limited to this. For example, the operation panel 28 opens the gate. After this, the left fan 60 and the right fan 62 may be activated.

  In the embodiment, the operation panel 28 has been described as the case where the gate is closed by the driving means after the left fan 60 and the right fan 62 are stopped after it is determined that entry is possible, but the present invention is not limited to this. The board 28 may stop the left fan 60 and the right fan 62 after closing the gate.

  In the embodiment, the case where the inspection target range setting unit 126 of the operation panel 28 transmits the setting information to the protrusion sensor has been described. However, the present invention is not limited to this. For example, the setting holding unit of the protrusion sensor may have setting information corresponding to the guidance mode and setting information corresponding to the warehousing mode in advance, and the operation panel may transmit information indicating which one should be selected to the protrusion sensor. . Or you may perform the process in the sensor process part of a protrusion sensor on the operation panel side.

  10 mechanical parking lot, 12 boarding / exiting room, 14 2F storage shelf, 16 3F storage shelf, 18 4F storage shelf, 28 operation panel, 32 pallet, 36 left protrusion sensor, 38 right protrusion sensor, 40 front protrusion sensor, 42 rear protrusion Sensor, 56 first transfer device, 58 second transfer device, 60 left fan, 62 right fan.

Claims (6)

It is a mechanical parking lot that introduces vehicles that have entered the entry / exit room to the storage shelf,
When the vehicle protrudes from the accommodation area while being guided to the normal accommodation area in the passenger compartment, a light projecting section that emits a laser beam so as to hit the protruding area, and a light receiving section that receives the reflected light returning from the protruding area And an optical detection device comprising:
A mechanical parking lot comprising: a fan that stirs air in the vicinity of the vehicle while the vehicle is guided to the accommodation area in the passenger compartment.   The mechanical parking lot according to claim 1, further comprising a control device for operating or stopping the fan at a low speed when the vehicle is introduced from the passenger compartment to the storage shelf. It is a mechanical parking lot that introduces vehicles that have entered the entry / exit room to the storage shelf,
When the vehicle enters the passenger compartment, when the vehicle protrudes from the normal accommodation area, a light projecting unit that emits a laser beam so as to hit the protruding part and a light receiving unit that receives reflected light returning from the protruding part are provided. Including optical detectors,
When the light receiving unit receives reflected light returning from an overhanging location, an inspection object when the vehicle is guided to the accommodation area in the passenger compartment when the area of the space to be detected as an overhang is called the inspection object area The mechanical parking lot is characterized in that the range is set to be different from the inspection target range when the vehicle is introduced from the passenger compartment to the storage shelf.   The inspection target range when the vehicle is guided to the accommodation area in the passenger compartment is set so as not to include the range corresponding to the position of the exhaust port of the vehicle, and the inspection target range when the vehicle is introduced from the passenger compartment to the storage shelf The mechanical parking lot according to claim 3, wherein is set so as to include a range corresponding to the position of the exhaust port of the vehicle.   The range in which the trajectory of the laser light emitted by the light projecting unit is swept is the same when the vehicle is guided to the accommodation area in the passenger compartment and when the vehicle is introduced from the passenger compartment to the storage shelf, and the inspection is performed. The mechanical parking lot according to claim 3 or 4, wherein the target range is two different ranges cut out from the same range. The locus of the laser beam emitted by the light projecting unit sweeps a range along the vehicle entrance on the vehicle entrance side of the passenger compartment,
The mechanical parking lot according to claim 3 or 4, wherein the inspection target range is not set while the vehicle is guided to the accommodation area in the passenger compartment.

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