AGV double-deck parking garage and control method thereof

Abstract

The present invention provides an AGV double-deck parking garage and a control method thereof. The AGV double-deck parking garage includes a parking rack, a hook unit, a vehicle loading plate, an AGV transport unit, and a parking space detection unit; the parking rack includes a plurality of parking posts arranged vertically; the hook unit includes a first hook and a second hook; the parking space detection unit includes a reflector and a sensor; the reflector is arranged on the parking post or the second hook. When there is no vehicle loading plate on the upper parking space, the reflector of the parking space detection unit is in a reflective position, and the sensor can receive the reflected light signal, thereby directly determining that there is no vehicle loading plate on the upper parking space and moving the vehicle loading plate to the upper parking space. When the sensor does not receive the reflected light signal, the vehicle loading plate cannot be transported to the upper parking space. Whether the upper parking space is loaded with a vehicle loading plate can be directly determined by whether the sensor receives the light signal reflected by the reflector, without the need for software memory, thereby improving the safety of the parking space.

Description

Technical Field

[0001] The present invention relates to the technical field of parking garages, and in particular to an AGV double-deck parking garage and a control method thereof. Background Art

[0002] In view of the various types of vehicles on the market, mechanical multi-story parking garages are important places for parking vehicles. Multi-story parking garages are generally provided with multiple parking spaces in the vertical direction to be able to park more vehicles and save occupied area.

[0003] Vehicle safety is crucial when parking in a multi-story parking garage. Each parking space must be properly protected against overlapping. Traditional methods rely on software memory to implement this protection, which poses significant safety risks. Summary of the Invention

[0004] The purpose of the present invention is to provide an AGV double-deck parking garage, which can directly determine whether the upper parking space is carrying a vehicle loading plate by whether the sensor receives the light signal reflected by the reflector, without the need for software memory, effectively avoiding mistakes and improving the safety of the parking space.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, the present invention provides an AGV double-deck parking garage, comprising a parking rack, a hook unit, a vehicle loading plate, an AGV transport unit, and a parking space detection unit; the parking rack comprises a plurality of parking columns arranged vertically; the plurality of parking columns are arranged horizontally at intervals; an upper parking space and a lower parking space with upper and lower intervals are formed between the plurality of parking columns; the hook unit comprises a first hook and a second hook; the first hook and the second hook are respectively arranged on the parking columns, and the first hook is located above the second hook; the vehicle loading plate can be carried on the first hook and the second hook respectively, so that the vehicle loading plate can be carried on the upper parking space and the lower parking space; the AGV transport unit is used to carry and lift the vehicle loading plate, so as to be able to drive the vehicle loading plate to move between the upper parking space and the lower parking space.

[0007] The parking space detection unit includes a reflector and a sensor; the reflector is arranged on the parking column or the second hook so as to be able to switch between a reflective position and a deflected position; the sensor is capable of emitting and receiving light signals, and the sensor is arranged on the AGV transport unit so that when the AGV transport unit moves to a preset position relative to the parking rack, the sensor can face the reflector, so that when the reflector is in the reflective position, the sensor can receive the reflected light signal; the reflector is configured to be in the reflective position when the upper parking space does not carry a loading plate.

[0008] In some embodiments of the present application, the parking space detection unit also includes a pull rope; the reflector is rotatably connected to the parking column or the second hook so that it can rotate between a reflective position and a deflected position; the lower end of the pull rope is fixed to the reflector, and the upper end of the pull rope is fixed to the first hook; when the loading plate is loaded on the first hook, the loading plate can press against the pull rope to drive the lower end of the pull rope to move upward, so that the reflector can rotate from the reflective position to the deflected position.

[0009] In some embodiments of the present application, the parking space detection unit also includes a first guide wheel; the first guide wheel is fixed on the parking column or the first hook, and the pull rope is wound around the first guide wheel; the pull rope includes a first section and a second section; one end of the first section is fixed on the first hook, and the other end is wound around the first guide wheel; one end of the second section is fixed on the reflector, and the other end is wound around the first guide wheel; the extension direction of the first section and the extension direction of the second section have an angle.

[0010] In some embodiments of the present application, a slot is provided on the upper surface of the first hook; the first section of the pull rope is at least partially located above the bottom wall of the slot; a protruding ear is formed on the vehicle loading plate, and the ear can be snapped downward and supported on the bottom wall of the slot; when the ear is snapped into the slot, the ear can drive the first section of the pull rope to deform downward.

[0011] In some embodiments of the present application, the reflector includes a first end and a second end relative to each other; the first end of the reflector is rotatably connected to a parking column or a second hook around a horizontal axis, and the reflecting surface of the reflector is arranged at the second end of the reflector; the lower end of the pull rope is fixedly connected to a position of the first end toward the second end or fixedly connected to the second end, so as to be able to drive the reflector to rotate upward, so that the reflector can rotate from the reflective position to the deflected position.

[0012] In some embodiments of the present application, the lower end of the pull rope is fixed to the reflector; when the pull rope is loose or broken, the reflector can be rotated downward so that the reflector cannot reflect the optical signal of the sensor.

[0013] In some embodiments of the present application, the cross-section of the reflector is three-deformed; one surface of the reflector is constructed to form a reflecting surface, and a corner of the reflector is connected to the parking column or the second hook.

[0014] In some embodiments of the present application, the AGV double-deck parking garage further includes a controller, which is electrically connected to the sensor and the AGV transport unit so as to receive signals from the sensor and control the operation of the AGV transport unit.

[0015] In some embodiments of the present application, the AGV double-deck parking garage includes an alarm device, so that when the sensor fails to detect the reflected light signal, the alarm device issues an alarm message.

[0016] In some embodiments of the present application, the AGV double-deck parking garage further includes a power unit, which is transmission-connected to the AGV transport unit so as to drive the AGV transport unit to rise and fall in the vertical direction and move in the horizontal direction.

[0017] According to another aspect of the present invention, the present invention provides a control method for an AGV double-deck parking garage, including the above-mentioned AGV double-deck parking garage; when the AGV transport unit carries a vehicle loading plate to be stored, confirm whether the sensor receives a reflected light signal; when the sensor receives the reflected light signal, the AGV transport unit lifts and moves the vehicle loading plate to be stored, and carries the vehicle loading plate to be stored on the first hook, so that the vehicle loading plate to be stored is carried on the upper parking space.

[0018] In some embodiments of the present application, when the sensor receives the reflected light signal:

[0019] When no vehicle loading plate is loaded on the upper parking space of the parking rack, the reflector is in a light-emitting position, and the reflector can reflect the light signal emitted by the sensor, so that the sensor receives the reflected light signal.

[0020] It can be seen from the above technical solutions that the present invention has at least the following advantages and positive effects:

[0021] In the present invention, a first hook and a second hook are provided on the parking rack along the upper and lower intervals, the first hook is located above the second hook, and the vehicle loading plate can be carried on the first hook and the second hook respectively, so that the vehicle loading plate can be carried on the upper parking space and the lower parking space, and two layers of vehicle loading plates can be parked in the parking garage.

[0022] The reflector is set on the parking column or the second hook so as to be able to switch between a reflective position and a deflected position. The sensor is capable of emitting and receiving light signals. When there is no vehicle loading plate on the upper parking space, the reflector of the parking space detection unit is in the reflective position, and the sensor is able to receive the reflected light signal, thereby directly determining that there is no vehicle loading plate on the upper parking space and moving the vehicle loading plate to the upper parking space. When the sensor does not receive the reflected light signal, the vehicle loading plate cannot be transported to the upper parking space, thereby avoiding repeated transport of the vehicle loading plate to the upper parking space. Whether the upper parking space is carrying a vehicle loading plate can be directly determined by whether the sensor receives the light signal reflected by the reflector, without the need for software memory, thereby improving the safety of the parking space.

[0023] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0026] Figure 1 It is a schematic diagram of the AGV double-deck parking garage of the present invention when no vehicle loading plate is carried on the upper parking space.

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0028] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0029] Figure 4 This is a control module diagram of the AGV double-deck parking garage of the present invention.

[0030] Figure 5 It is a structural schematic diagram of the vehicle loading plate of the present invention.

[0031] Figure 6 It is a schematic diagram of the AGV double-deck parking garage of the present invention, in which a vehicle loading plate is carried on the upper parking space.

[0032] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0033] Figure 8 yes Figure 6 Enlarged view of point D in the middle.

[0034] The description of the accompanying numbers is as follows: 100, parking rack; 110, parking column; 200, loading plate; 210, hanging ear; 300, AGV transport unit; 410, first hook; 420, second hook; 411, card slot; 500, parking space detection unit; 510, reflector; 511, reflecting surface; 520, sensor; 530, pull rope; 540, first guide wheel; 550, second guide wheel; 800, ground; 910, power unit; 920, controller; 930, alarm device. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0036] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0037] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0038] For ease of description and understanding, the up and down and horizontal directions are defined with reference to the state of the AGV double-deck parking garage in use.

[0039] Figure 1 It is a schematic diagram of the AGV double-deck parking garage of the present invention when no vehicle loading plate is carried on the upper parking space. Figure 2 yes Figure 1 Enlarged view of point A in the middle. Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0040] See Figures 1 to 3The present application provides an AGV double-deck parking garage, which is configured as a two-story garage capable of accommodating vehicles on both the upper and lower levels. The AGV double-deck parking garage includes a parking rack 100, a vehicle loading plate 200, and an AGV transport unit 300. The parking rack 100 is formed with an upper parking space and a lower parking space spaced apart from each other. The AGV transport unit 300 is used to transport the vehicle loading plate 200, thereby automatically transporting the vehicle loading plate 200 to the upper parking space or the lower parking space.

[0041] The vehicle loading plate 200 is used to carry the vehicle, and the AGV transport unit 300 transports the vehicle loading plate 200 to the parking space on the parking rack 100 , thereby storing the vehicle at the corresponding parking space of the parking rack 100 .

[0042] An AGV (Automated Guided Vehicle) transport unit is a type of unmanned intelligent transport equipment that uses sensors and navigation systems (such as lasers, magnetic strips, vision, or inertial navigation) to achieve unmanned operation. It is widely used in industry, warehousing, and logistics for the automated transport of goods, materials, or finished products. The AGV transport unit 300 is used to carry and lift the vehicle loading platform 200, enabling it to be moved between upper and lower parking spaces. The structure of the AGV transport unit 300 can be referenced to that of AGV transport units in related art and will not be further described here.

[0043] In some embodiments, the parking racks 100 are arranged horizontally at intervals, and the AGV transport unit 300 can transport the vehicle loading plate 200 to the upper parking spaces and lower parking spaces on different parking racks 100 .

[0044] In other embodiments, one parking rack 100 is provided, and one parking rack 100 is constructed to form an upper parking space and a lower parking space.

[0045] In some embodiments, the parking rack 100 includes a plurality of vertically arranged parking posts 110, which are arranged horizontally at intervals. Upper and lower parking spaces are formed between the parking posts 110, with the upper parking spaces being arranged above the lower parking spaces.

[0046] In some embodiments, a plurality of parking posts 110 are fixed to the ground 800 or a supporting surface, and the number of parking posts is two, three, or four or more.

[0047] Figure 4 This is a control module diagram of the AGV double-deck parking garage of the present invention.

[0048] See Figures 1 to 4The AGV double-deck parking garage also includes a power unit 910, which is transmission-connected to the AGV transport unit 300 to drive the AGV transport unit 300 to move vertically and horizontally. When the vehicle loading plate 200 is carried on the AGV transport unit 300, the AGV transport unit 300 drives the vehicle loading plate 200 to move horizontally and vertically, thereby driving the vehicle loading plate 200 to be carried on the upper parking space or the lower parking space on the parking rack 100.

[0049] In some embodiments, multiple parking racks 100 are provided, and the AGV transport unit 300 transports the vehicle loading plate 200 so as to be able to move between different parking racks 100. When there is an empty parking space on the corresponding parking rack 100, the AGV transport unit 300 transports the vehicle loading plate 200 and places it in the empty parking space of the corresponding parking rack 100.

[0050] It should be noted that when a loading plate 200 needs to be stored in a parking rack, the AVG transport unit transports the loading plate 200 toward the corresponding parking rack 100. It determines whether the upper parking space of the corresponding parking rack 100 is loaded with a loading plate 200. If no loading plate 200 is loaded in the upper parking space, the loading plate 200 is transported and placed in the upper parking space of the parking rack 100.

[0051] Figure 5 It is a structural schematic diagram of the vehicle loading plate of the present invention.

[0052] See Figures 1 to 5 The AGV double-deck parking garage also includes a hook unit, mounted on the parking column 110, for supporting the vehicle loading plate 200. The hook unit includes a first hook 410 and a second hook 420. The first hook 410 and the second hook 420 are each mounted on the parking column 110, with the first hook 410 positioned above the second hook 420. The first hook 410 forms an upper parking space, while the second hook 420 forms a lower parking space.

[0053] In some embodiments, the loading plate 200 is formed with a protruding lug 210 for being carried on the hook unit. The lug 210 is carried on the first hook 410 or the second hook 420 at different heights, thereby storing the loading plate 200 in the corresponding upper parking space or lower parking space.

[0054] In other embodiments, a slot 411 is provided on the upper surface of the first hook 410 , and the hook 210 can be snapped downward and supported on the bottom wall of the slot 411 , thereby limiting the vehicle loading plate 200 to the upper parking space.

[0055] In one embodiment, a slot 411 is respectively formed on the upper surface of the first hook 410 and the second hook 420 to respectively carry and limit the vehicle loading plate 200 .

[0056] Figure 6 It is a schematic diagram of the AGV double-deck parking garage of the present invention, in which a vehicle loading plate is carried on the upper parking space. Figure 7 yes Figure 6 Enlarged view of point C in the middle. Figure 8 yes Figure 6 Enlarged view of point D in the middle.

[0057] See Figures 2 to 8 The AGV double-deck parking garage also includes a parking space detection unit 500, which includes a reflector 510 and a sensor 520. The sensor 520 can emit and receive light signals, and the reflector 510 can reflect the light signal emitted by the corresponding sensor 520. The sensor 520 emits a light signal, which is reflected by the reflector 510 and then received by the sensor 520.

[0058] Reflector 510 is mounted on parking post 110 or second hook 420 and is switchable between a reflective position and a deflected position. When reflector 510 is in the reflective position and sensor 520 is in a preset position, sensor 520 is able to receive a reflected light signal. When a loading plate 200 is placed in an upper parking space of parking post 110, reflector 510 is in the reflective position or the deflected position. Sensor 520 detects the reflected light signal to determine whether a loading plate 200 is placed in the upper parking space.

[0059] In one embodiment, the reflector 510 is configured to be in a reflective position when no loading plate 200 is loaded in the upper parking space. The reflector 510 is mounted on the parking post 110 or the second hook 420 and can be switched between a reflective position and a deflected position. The sensor 520 is capable of emitting and receiving light signals. When no loading plate 200 is loaded in the upper parking space, the reflector 510 of the parking space detection unit 500 is in the reflective position, and the sensor 520 receives the reflected light signal. This allows the sensor 520 to directly determine that no loading plate 200 is loaded in the upper parking space and move the loading plate 200 to the upper parking space. If the sensor 520 does not receive the reflected light signal, the loading plate 200 cannot be moved to the upper parking space, thus avoiding repeated movement of the loading plate 200 to the upper parking space. Whether the upper parking space is loaded with a loading plate 200 is directly determined by the sensor 520 receiving the light signal reflected by the reflector 510, eliminating the need for software memory, effectively avoiding errors and improving parking space safety.

[0060] In another embodiment, the reflector 510 is configured to be in a reflective position when the upper parking space carries the vehicle loading plate 200 .

[0061] In some implementations, a transmission structure, such as a transmission rod, is provided between the upper parking space and the reflector 510. When the vehicle loading plate 200 is loaded on the upper parking space, the vehicle loading plate 200 drives the transmission structure to move downward or upward, thereby driving the reflector 510 to rotate between the reflective position and the deflected position.

[0062] In some embodiments, the reflector 510 is connected to a driving structure. When the vehicle loading plate 200 is loaded on the upper parking space, the driving structure drives the reflector 510 to rotate between the reflecting position and the deflecting position.

[0063] In one embodiment, the reflector 510 is rotatably connected to the parking post 110 or the second hook 420 about a horizontal axis, so that the reflector 510 can rotate in the vertical direction. The reflector 510 is connected to the parking post 110 or the second hook 420 via a horizontal rotation axis.

[0064] In one embodiment, the reflector 510 includes a first end and a second end opposite to each other; the first end of the reflector 510 is rotatably connected to the parking post 110 or the second hook 420 about a horizontal axis, and the reflective surface 511 of the reflector 510 is disposed at the second end of the reflector 510. The first end of the reflector 510 is connected to the parking post 110 or the second hook 420 via a horizontal rotation axis.

[0065] In some embodiments, the cross-section of the reflector 510 is triangular; one surface of the reflector 510 forms a reflecting surface 511 , and a corner of the reflector 510 is connected to the parking column 110 or the second hook 420 via a horizontal rotating shaft.

[0066] In other embodiments, the reflector 510 is a long strip or square structure, the first end of the reflector 510 is rotatably connected to the parking column 110 or the second hook 420, and the second end of the reflector 510 is constructed to form a reflective surface 511.

[0067] In this embodiment, the parking space detection unit 500 further includes a pull cord 530. The reflector 510 is rotatably connected to the parking post 110 or the second hook 420 so as to be capable of rotating between a reflective position and a deflected position. The lower end of the pull cord 530 is fixed to the reflector 510, and the upper end is fixed to the first hook 410. When the loading plate 200 is supported on the first hook 410, the loading plate 200 can abut against the pull cord 530, thereby driving the lower end of the pull cord 530 to move upward, allowing the reflector 510 to rotate from the reflective position to the deflected position. When the loading plate 200 is supported in an upper parking space, the loading plate 200 compresses the upper end of the pull cord 530, causing it to deform, thereby causing the lower end of the pull cord 530 to contract upward, driving the reflector 510 to rotate.

[0068] In one embodiment, the pull cord 530 is a steel wire rope, a chain, or a chain light structure.

[0069] In some embodiments, the lower end of the pull rope 530 is fixedly connected to a position on the reflector 510 where the first end faces the second end, or is fixedly connected to the second end. When the first end of the pull rope changes, it can drive the reflector 510 to rotate upward, so that the reflector 510 can rotate from the reflective position to the deflected position.

[0070] In a specific embodiment, the reflector 510 has a first end and a second end relative to each other. The first end is rotatably connected to the parking column 110 or the second hook 420, and the second end is configured to form a reflective surface 511. When the reflector 510 is in the reflective position, the reflective surface 511 is arranged vertically to be able to reflect light in the horizontal direction. The lower end of the pull rope 530 is fixed to the reflector 510 for tightening the reflector 510. The movement of the pull rope 530 drives the reflector 510 to rotate. When the loading plate 200 is not stored in the upper parking space, the pull rope 530 tightens the reflector 510 to maintain the vertical orientation of the reflective surface 511 of the reflector 510, keeping the reflector 510 in the reflective position. When the upper parking space carries the loading plate 200, the loading plate 200 drives the pull rope 530 to deform, and the pull rope 530 pulls the reflector 510 upward to rotate, so that the reflector 510 is in a deflected position, and the reflective surface 511 of the reflector 510 has an angle with the vertical direction.

[0071] In some embodiments, the lower end of the pull rope 530 is fixed to the reflector 510 ; when the pull rope 530 is loose or broken, the reflector 510 can rotate downward under the action of gravity so that the reflector 510 cannot reflect the light signal of the sensor 520 .

[0072] In some embodiments, the parking space detection unit 500 further includes a first guide wheel 540; the first guide wheel 540 is fixed to the parking column 110 or the first hook 410, and the pull rope 530 is wound around the first guide wheel 540; the pull rope 530 includes a first section and a second section; one end of the first section is fixed to the first hook 410, and the other end is wound around the first guide wheel 540; one end of the second section is fixed to the reflector 510, and the other end is wound around the first guide wheel 540; the extension direction of the first section and the extension direction of the second section form an angle. When the loading plate 200 is loaded on the upper parking space, the loading plate 200 presses against the first section of the pull rope 530, causing the first section of the pull rope 530 to deform and the second section to move upward. The upward movement of the second section of the pull rope 530 pulls the reflector 510 to deflect, causing the reflector 510 to rotate upward from the second position to the deflected position.

[0073] In other embodiments, the parking space detection unit 500 further includes a second guide wheel 550 , which is fixed to the parking column 110 or the second hook 420 to guide the pull rope 530 . The lower end of the pull rope 530 is wound around the second guide wheel 550 .

[0074] In some embodiments, a slot 411 is defined on the upper surface of the first hook 410; the first section of the pull cord 530 is at least partially located above the bottom wall of the slot 411; and a protruding lug 210 is formed on the loading plate 200. The lug 210 can be engaged downward and supported on the bottom wall of the slot 411 to support the loading plate 200 on the first hook 410. When the lug 210 is engaged in the slot 411, the lug 210 can cause the first section of the pull cord 530 to deform downward, thereby pulling the second section of the pull cord 530 upward.

[0075] In another embodiment, the first hook 410 is provided with a card slot 411 or no card slot 411 is provided, and the first section of the pull rope 530 is higher than the first hook 410 and is located above the first hook 410. In the process of the loading plate 200 moving downward and being supported by the first hook 410, the hanging ear 210 of the loading plate 200 pulls the first section of the pull rope 530 downward to deform, thereby driving the pull rope 530 to move.

[0076] It should be noted that, in one embodiment, the sensor 520 is disposed on the AGV transport unit 300. When the AGV transport unit 300 carries the vehicle loading plate 200, the AGV transport unit 300 moves toward the corresponding parking rack 100. When the AGV transport unit 300 moves toward the corresponding parking rack 100 to a preset position, the sensor 520 faces the reflector 510. The sensor 520 emits a light signal toward the reflector 510 to confirm whether the sensor 520 receives the reflected light signal.

[0077] When the upper parking space is empty of a loading plate 200, the mirror is in the reflective position, allowing the sensor 520 to receive the reflected light signal. Upon determining that the upper parking space is empty of a loading plate 200, the AGV transport unit 300 moves the loading plate 200 upward and then horizontally, placing the loading plate 200 on the AGV transport unit 300 onto the first hook 410 of the upper parking space.

[0078] When a loading plate 200 is loaded on the upper parking space, the light-emitting mirror is in a deflected position. Sensor 520 cannot receive the reflected light signal. Therefore, the AGV transport unit 300 cannot transport the loading plate 200 from the AGV transport unit 300 to the upper parking space.

[0079] In some embodiments, the sensor 520 is not fixed to the AGV transport unit 300 , and the sensor 520 is electrically or wirelessly connected to the AGV transport unit 300 .

[0080] The AGV double-deck parking garage also includes a controller 920, which is electrically connected to the sensor 520 and the AGV transport unit 300. The controller 920 receives signals from the sensor 520 and controls the operation of the AGV transport unit 300. The sensor 520 generates an electrical signal based on whether it receives a reflected light signal. Based on this electrical signal, the controller 920 determines whether to control the AGV transport unit 300 to move the loading plate 200 to the upper parking space. When the loading plate 200 needs to be moved to the upper parking space, the power unit 910 is controlled to operate, causing the AGV transport unit 300 to move the loading plate 200 to the upper parking space.

[0081] In some implementations, the AGV double-deck parking garage includes an alarm device 930 , which sends an alarm message when the sensor 520 fails to detect the reflected light signal. The alarm device 930 is electrically connected to the controller 920 .

[0082] In one embodiment, when the vehicle loading plate 200 is placed on the upper parking space of the parking rack 100 , the reflector 510 is in a deflected position, the sensor 520 cannot receive the reflected light signal, and the alarm device 930 issues an alarm signal.

[0083] In other embodiments, when the pull rope 530 breaks or in other circumstances, the reflector 510 rotates downward, the sensor 520 cannot receive the reflected light signal, and the alarm device 930 sends an alarm signal.

[0084] Based on the above structure, this application also provides a control method for an AGV double-deck parking garage.

[0085] When the vehicle loading plate 200 to be stored is carried on the AGV transport unit 300 , it is confirmed whether the sensor 520 receives the reflected light signal.

[0086] Specifically, when the AGV transport unit 300 carries the vehicle loading plate 200 to be stored, it is necessary to transport the vehicle loading plate 200 to be stored and place it on the parking rack 100. The AGV transport moves toward the parking rack 100 to a preset position, and the sensor 520 sends a light signal to the reflector 510.

[0087] When the sensor 520 receives the reflected light signal, the AGV transport unit 300 lifts and moves the vehicle loading plate 200 to be stored, and carries the vehicle loading plate 200 to be stored on the first hook 410, so that the vehicle loading plate 200 to be stored is carried on the upper parking space.

[0088] Specifically, when no vehicle loading plate 200 is loaded on the upper parking space of the corresponding parking rack 100, the reflector 510 is in the reflective position. The reflector 510 can reflect the light signal emitted by the sensor 520, so that the sensor 520 can receive the reflected light signal and determine that the upper parking space does not carry the vehicle loading plate 200. The AGV transport unit 300 lifts and moves the vehicle loading plate 200 to be stored, and carries the vehicle loading plate 200 to be stored on the first hook 410, so that the vehicle loading plate 200 to be stored is loaded on the upper parking space.

[0089] When the AGV transport unit 300 places the vehicle loading plate 200 to be stored in the upper parking space, the vehicle loading plate 200 to be stored presses down the pressing rope 530, driving the rope 530 to move upward, and the rope 530 drives the reflector 510 to rotate upward, so that the reflector 510 rotates from the reflecting position to the deflection position.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0091] In this application, unless otherwise expressly specified or limited, terms such as "assembled" and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal communication between two components; or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Throughout this specification, references to terms such as "some embodiments" and "exemplarily" indicate that the specific features, structures, materials, or characteristics described in connection with such embodiments or examples are included in at least one embodiment or example of this application. In this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, as well as features from different embodiments or examples, as long as they do not conflict with each other.

[0092] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent application.

Claims

1. An AGV double-deck parking garage, characterized in that: include: A parking rack comprising a plurality of parking columns arranged vertically; The plurality of parking columns are arranged horizontally at intervals; upper parking spaces and lower parking spaces are formed between the plurality of parking columns; The hook unit includes a first hook and a second hook; the first hook and the second hook are respectively arranged on the parking column, and the first hook is located above the second hook; A vehicle loading plate, which can be carried on the first hook and the second hook respectively, so that the vehicle loading plate can be carried on the upper parking space and the lower parking space; An AGV transport unit, which is used to carry and lift the vehicle loading plate so as to move the vehicle loading plate between the upper parking space and the lower parking space; A parking space detection unit, comprising a reflector and a sensor; the reflector is disposed on the parking post or the second hook so as to be switchable between a reflective position and a deflected position; the sensor is capable of emitting and receiving light signals, and is disposed on the AGV transport unit so as to face the reflector when the AGV transport unit moves to a preset position relative to the parking rack, and to receive reflected light signals when the reflector is in the reflective position; Wherein, the reflector is configured so that when no vehicle loading plate is loaded on the upper parking space, the reflector is in a reflective position; The parking space detection unit further includes a pull rope; the reflector is rotatably connected to the parking column or the second hook so as to be rotatable between a reflective position and a deflected position; the lower end of the pull rope is fixed to the reflector, and the upper end of the pull rope is fixed to the first hook; When the vehicle loading plate is loaded on the first hook, the vehicle loading plate can abut against the pull rope to drive the lower end of the pull rope to move upward, so that the reflector can rotate from the reflecting position to the deflecting position; The parking space detection unit further includes a first guide wheel; the first guide wheel is fixed to the parking column or the first hook, and the pull rope is wound around the first guide wheel; The pull rope includes a first section and a second section; one end of the first section is fixed to the first hook, and the other end is wound around the first guide wheel; one end of the second section is fixed to the reflector, and the other end is wound around the first guide wheel; the extension direction of the first section and the extension direction of the second section form an angle; The reflector includes a first end and a second end relative to each other; the first end of the reflector is rotatably connected to a parking column or a second hook around a horizontal axis, and the reflecting surface of the reflector is arranged at the second end of the reflector; the lower end of the pull rope is fixedly connected to a position of the first end toward the second end or fixedly connected to the second end, so as to drive the reflector to rotate upward, so that the reflector can rotate from the reflecting position to the deflected position.

2. The AGV double-deck parking garage according to claim 1, characterized in that: A slot is formed on the upper surface of the first hook; the first section of the drawstring is at least partially located above the bottom wall of the slot; A protruding lug is formed on the vehicle loading plate, and the lug can be clamped downward and carried on the bottom wall of the clamping slot; when the lug is clamped in the clamping slot, the lug can drive the first section of the pull rope to deform downward.

3. The AGV double-deck parking garage according to claim 1, characterized in that: The lower end of the pull rope is fixed on the reflector; When the pull rope is loose or broken, the reflector can be rotated downward so that the reflector cannot reflect the optical signal of the sensor.

4. The AGV double-deck parking garage according to claim 1, characterized in that: The cross section of the reflector is triangular; one surface of the reflector is structured to form a reflecting surface, and a corner of the reflector is connected to the parking column or the second hook.

5. The AGV double-deck parking garage according to claim 1, characterized in that: The AGV double-deck parking garage further includes a controller, which is electrically connected to the sensor and the AGV transport unit so as to receive signals from the sensor and control the operation of the AGV transport unit.

6. The AGV double-deck parking garage according to claim 5, characterized in that: The AGV double-deck parking garage includes an alarm device, so that when the sensor fails to detect the reflected light signal, the alarm device issues an alarm message.

7. The AGV double-deck parking garage according to claim 5, characterized in that: The AGV double-deck parking garage further includes a power unit, which is transmission-connected to the AGV transport unit so as to drive the AGV transport unit to rise and fall in the vertical direction and move in the horizontal direction.

8. A control method for an AGV double-deck parking garage, characterized in that: An AGV double-deck parking garage comprising any one of claims 1 to 7; When a vehicle loading plate to be stored is carried on the AGV transport unit, confirming whether the sensor receives a reflected light signal; When the sensor receives the reflected light signal, the AGV transport unit lifts and moves the vehicle loading plate to be stored, and carries the vehicle loading plate to be stored on the first hook, so that the vehicle loading plate to be stored is carried on the upper parking space.

9. The control method according to claim 8, characterized in that: When the sensor receives the reflected light signal: When no vehicle loading plate is loaded on the upper parking space of the parking rack, the reflector is in a light-emitting position, and the reflector can reflect the light signal emitted by the sensor, so that the sensor receives the reflected light signal.

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