A control system for a box-type logistics transfer station and its control method

Abstract

The present invention provides a control system for a box-type logistics transfer station and a control method thereof. The control system includes a main processing module, an access processing module, an entry / exit processing module, and a fixed transfer module that are connected and controlled by the main processing module. The access processing module is interconnected with the entry / exit processing module. The main processing module is connected to a storage module and an input display module, and the main processing module is also connected to a total logistics control system. The present invention has the following beneficial effects: The main processing module is controlled by the total logistics control system, and the access processing module, the entry / exit processing module, and the fixed transfer module that are connected and controlled by the main processing module perform actual work, which solves the technical problem that the existing transfer station directly uses the control system of the automated logistics system, resulting in a decrease in the execution speed of the control system.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics control systems, and in particular, to a control system and a control method for a box-type logistics transfer station. Background Art

[0002] Automated logistics systems are mainly applied in industries such as banks, hospitals, restaurants, and administrative centers. Taking the application in a hospital as an example, boxes containing drugs or medical devices are transported to each nurse station or pharmacy through a conveyor channel, and then used by doctors and nurses. However, the space of the nurse station and the pharmacy is limited and cannot store a large number of drugs or medical devices. Moreover, the location of incoming goods is too far from the nurse station and the pharmacy, and it is easy that when doctors and nurses need drugs, the drugs or medical devices have not yet reached the nurse station or the pharmacy.

[0003] Therefore, a transfer station is needed to store the boxes of drugs or medical devices. The control systems of traditional transfer stations are directly controlled by the control system of the automated logistics system. When the transfer station stores or ships goods, the control system not only needs to issue control instructions but also needs to feedback the working conditions of the transfer racks in real time. In this way, the CPU operation speed requirements for the control system of the automated logistics system will also increase. Otherwise, it is easy to affect the operation speed of the automated logistics system in processing other areas, resulting in a problem of decreased execution speed of the control system of the automated logistics system. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a control system and a control method for a box-type logistics transfer station, which solve the technical problem that the existing transfer station directly adopts the control system of the automated logistics system, thereby resulting in a decrease in the execution speed of the control system.

[0005] According to an embodiment of the present invention, a control system for a box-type logistics transfer station is provided. The transfer station includes a vertical lifting device for vertically transporting box-type articles, a placement rack device that can extend to one side of the vertical lifting device for placing box-type articles, a grasping device provided on the vertical lifting device for grasping box-type articles, a lifting device for horizontally transporting box-type articles to the lower side of the grasping device or horizontally transporting them out of the transfer station, a telescopic device for horizontally transporting box-type articles to the lower side of the grasping device or horizontally transporting them out of the transfer station, and a fixed conveyor device for directly horizontally transporting box-type articles through the transfer station. The control system includes:

[0006] A main processing module and an access processing module, an entry and exit processing module, and a fixed conveyor module that are connected and controlled by the main processing module. The access processing module and the entry and exit processing module are interconnected. The main processing module is connected to a storage module and an input display module, and the main processing module is also connected to a logistics total control system;

[0007] The main processing module: is used to receive commands from the total logistics control system and the input display module, combine with the existing storage situation data of the transfer station stored in the storage module, obtain the working steps, and then transmit the working steps to the access processing module, the incoming and outgoing processing module, or the fixed transfer module respectively;

[0008] The access processing module: is used to control the operation of the rack device, the vertical lifting device, and the grasping device according to the working steps;

[0009] The incoming and outgoing processing module: is used to control the operation of the lifting device and the telescopic device according to the working steps;

[0010] The fixed transfer module: is used to control the operation of the fixed transfer device according to the working steps.

[0011] Further, the access processing module is connected to control a lifting motor, a plurality of rack motors, and a grasping cylinder;

[0012] The lifting motor: is used to drive the vertical lifting device to perform vertical lifting motion;

[0013] The rack motor: is used to drive the rack device to perform horizontal telescopic motion;

[0014] The grasping cylinder: is used to drive the grasping device to clamp box-shaped items.

[0015] Further, the access processing module is also connected with a group of lifting limit sensors, a plurality of groups of rack limit sensors, and a plurality of positioning sensors;

[0016] A group of the lifting limit sensors are connected to control the lifting motor through the access processing module, a group of the rack limit sensors control a corresponding rack motor through the access processing module, the positioning sensors control the lifting motor through the access processing module, and the positioning sensors are connected to the rack motors at the same height.

[0017] Further, a group of the lifting limit sensors includes a top sensor and a bottom sensor arranged at two extreme positions of the vertical lifting device, a group of the rack limit sensors includes an outer sensor and an inner sensor arranged at two extreme positions of the rack device, the bottom sensor and the inner sensor are connected to the grasping cylinder, and all the outer sensors are connected to the lifting motor.

[0018] Further, the incoming and outgoing processing module is connected to control a lifting cylinder, a lifting transfer motor, a telescopic motor, a telescopic transfer motor, and a transfer door motor;

[0019] The lifting cylinder: is used to drive the lifting device to perform vertical motion;

[0020] The lifting conveyor motor: used to drive the lifting device to convey boxed items;

[0021] The telescopic motor: used to drive the telescopic device to perform telescopic movement in the horizontal direction;

[0022] The telescopic conveyor motor: used to drive the telescopic device to convey boxed items;

[0023] The transfer door motor: used to drive the door device on the telescopic device side to open and close.

[0024] Furthermore, the access processing module is also connected with a front sensor, a rear sensor, a photoelectric switch, a lifting sensor and a telescopic sensor:

[0025] The front sensor and the rear sensor cooperate to control the telescopic motor through the access processing module;

[0026] The photoelectric switch and the lifting sensor cooperate to control the lifting conveyor motor through the access processing module;

[0027] The photoelectric switch and the telescopic sensor cooperate to control the telescopic conveyor motor through the access processing module.

[0028] Furthermore, the rear sensor is connected to the transfer door motor, and the front sensor is connected to the lifting cylinder.

[0029] Furthermore, the fixed conveyor module is connected to control a fixed conveyor motor and a transfer door motor;

[0030] The fixed conveyor motor: used to drive the fixed conveyor device to convey boxed items;

[0031] The transfer door motor: used to drive the door device on the fixed conveyor device side to open and close.

[0032] Furthermore, the main processing module is also connected with a wireless module, the wireless module is wirelessly connected to the logistics total control system, and the input display module is a touch display screen.

[0033] A control method for a boxed logistics transfer station control system according to the embodiments of the present invention includes:

[0034] Storage:

[0035] a. Determine the storage location: The input display module or the logistics total control system gives an instruction to the main processing module that there is a new boxed item to be stored. The main processing module retrieves the existing storage situation data of the transfer racks stored in the storage module, determines whether it can still be stored, and if it can be stored, determines the storage location. Then the main processing module transmits the information of the determined storage location to the access processing module;

[0036] b. Determine the entry position of the boxed item: The main processing module obtains the information on where the boxed item enters the transfer rack from the instructions given by the input display module or the logistics total control system. Then, the main processing module transmits the information on where the boxed item enters the transfer rack to the access and handling module.

[0037] c. Gripping preparation: The access and handling module transfers the boxed item to the gripping position according to the information on where the boxed item enters the transfer rack received in step b. Then, the access and handling module gives an instruction to the storage and handling module to perform gripping, and at the same time, the access and handling module gives feedback to the main processing module on the information that the boxed item enters the gripping position of the transfer rack.

[0038] d. Complete storage: After the storage and handling module receives the instruction to perform gripping given by the access and handling module, the storage and handling module works according to the information on the determined storage position received in step a to complete the storage of the boxed item.

[0039] Shipping:

[0040] e. Determine the shipped item: The input display module or the logistics total control system gives the main processing module the instruction on the boxed item to be shipped and the information on the boxed item to be shipped. The main processing module retrieves the existing storage situation data of the transfer rack stored in the storage module to determine whether there is such a boxed item. If so, it determines the storage position of the boxed item. Then, the main processing module transmits the information on the storage position of the boxed item to the storage and handling module.

[0041] f. Determine the shipping position of the boxed item: The main processing module obtains from the instruction given by the input display module or the logistics total control system the information on where the boxed item needs to be transferred. Then, the main processing module transmits the information on where the boxed item needs to be transferred to the access and handling module.

[0042] g. Shipping preparation: After the access and handling module makes preparations to receive the boxed item according to the information on where the boxed item needs to be transferred received in step f, it then gives an instruction to the storage and handling module to start working. The storage and handling module takes out the boxed item according to the information on the storage position of the boxed item received in step e. After taking it out, the storage and handling module gives an instruction to the access and handling module to work.

[0043] h. Complete shipping: The access and handling module transfers the boxed item out of the transfer rack according to the information on where the boxed item needs to be transferred received in step f.

[0044] The technical principle of the present invention is as follows: The main processing module is connected to the overall logistics control system, enabling the overall logistics control system to only issue storage and shipping instructions. The main processing module is connected to the access processing module, the entry / exit processing module, and the fixed transfer module, enabling the main processing module to only design the working steps according to the instructions given by the overall logistics control system, while the specific working steps are implemented by the access processing module, the entry / exit processing module, and the fixed transfer module. At the same time, the working conditions of the transfer station are fed back in real time. Only by feeding back to the access processing module and the entry / exit processing module can the access processing module and the entry / exit processing module make responses. Only the final position of the boxed items will be fed back to the main processing module and stored in the storage module.

[0045] Meanwhile, manually, the input display module can be used to replace the overall logistics control system to issue storage and shipping instructions.

[0046] Compared with the prior art, the present invention has the following beneficial effects: By controlling the main processing module through the overall logistics control system, the main processing module is connected to control the access processing module, the entry / exit processing module, and the fixed transfer module. The access processing module, the entry / exit processing module, and the fixed transfer module directly control each execution device to implement the actual work and receive the feedback information of each execution device, which solves the technical problem that the existing transfer station directly uses the control system of the automated logistics system, resulting in the control system having to take on all control instructions and also taking into account the feedback working conditions information, leading to a decrease in the execution speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic structural diagram of the control system of the boxed logistics transfer station according to an embodiment of the present invention.

[0048] Figure 2 It is a schematic control structure diagram of the access processing module according to an embodiment of the present invention.

[0049] Figure 3 It is a schematic control structure diagram of the entry / exit processing module according to an embodiment of the present invention.

[0050] Figure 4 It is a schematic control structure diagram of the fixed transfer module according to an embodiment of the present invention.

[0051] Figure 5 It is a schematic structural diagram of the boxed logistics transfer station according to an embodiment of the present invention.

[0052] In the above-mentioned drawings: 10, transfer rack; 20, placing rack device; 21, placing rack motor; 30, vertical lifting device; 31, lifting motor; 34, positioning inductor; 40, grasping device; 41, grasping cylinder; 50, lifting device; 51, lifting cylinder; 60, telescopic device; 61, telescopic motor; 70, fixed conveying device; 80, door device; 81, transfer door motor; 82, conveying door motor; 90, driving roller. Detailed implementation mode

[0053] The technical solutions in the present invention will be further described below in conjunction with the drawings and embodiments.

[0054] As Figure 5 shown, the transfer station includes a vertical lifting device 30 for vertically transporting boxed items, a placing rack device 20 that can extend to one side of the vertical lifting device 30 for placing boxed items, a grasping device 40 provided on the vertical lifting device 30 for grasping boxed items, a lifting device 50 for horizontally transporting boxed items to the lower side of the grasping device 40 or horizontally transporting them out of the transfer station, a telescopic device 60 for horizontally transporting boxed items to the lower side of the grasping device 40 or horizontally transporting them out of the transfer station, and a fixed conveying device 70 for directly horizontally transporting boxed items through the transfer station.

[0055] Specifically, a transfer rack 10 for support is provided on the boxed logistics transfer station. The vertical lifting device 30 is arranged in the middle of the transfer rack. Placing rack devices 20 are evenly distributed along the height direction of the transfer rack 10 on both sides of the transfer rack 10, that is, on both sides of the vertical lifting device 30. The grasping device 40 is fixed on the bottom of the vertical lifting device 30; the lifting device 50 and the telescopic device 60 are arranged on the transfer rack 10 and are both located below the grasping device 40. The lifting device 50 and the telescopic device 60 are on the same horizontal plane. The fixed conveying device 70 is arranged below the lifting device 50 and the telescopic device 60, and door devices 80 are provided at one end of the telescopic device 60 and the fixed conveying device 70 away from the lifting device 50.

[0056] The vertical lifting device 30 can vertically transport boxed items and transport the boxed items to the placing rack device 20, the lifting device 50 or the telescopic device 60.

[0057] The grasping device 40 moves along with the vertical lifting device 30 and mainly functions to clamp or release boxed items.

[0058] The placing rack device can extend to the side of the vertical lifting device 30 and mainly cooperates with the vertical lifting device 30 to take out boxed items from the placing rack device 20 or place them on the placing rack device 20.

[0059] The lifting device 50 is correspondingly connected to two conveyor belts. The lifting device 50 can move in the vertical direction to achieve the purpose of switching between different connected conveyor belts, and is used to output boxed items onto the two conveyor belts or receive boxed items on these two conveyor belts.

[0060] The telescopic device 60 is connected to one conveyor belt, and the telescopic device 60 can contract towards the lifting device 50. In the contracted state: it can receive boxed items conveyed by the vertical lifting device 30. Only in this case can the door device 80 provided on one side of the telescopic device 60 be closed; in the extended state: it can output boxed items onto one conveyor belt or receive boxed items on this one conveyor belt. Only in this case can the lifting device 50 move upward. Receive boxed items conveyed by the vertical lifting device 30.

[0061] The fixed conveyor device 70 is used for boxed items to be directly conveyed through the transfer station without being stored.

[0062] The door device can prevent dust from entering the transfer station after being closed.

[0063] Specifically, the vertical lifting device 30 is driven by a lifting motor 31, each placement rack device 20 is driven by a placement rack motor 21, the grasping device 40 is driven by a grasping cylinder 41, the lifting device 50 is driven by a lifting cylinder 51 to make the lifting device 50 perform a lifting motion. The lifting device 50 drives the transmission roller 90 on the lifting device 50 to rotate through a lifting conveyor motor to achieve the purpose of conveying boxed items. The telescopic device 60 is driven by a telescopic motor 61 to make the telescopic device 60 perform a telescopic motion. The telescopic device 60 drives the transmission roller 90 on the telescopic device 60 to rotate through a telescopic conveyor motor to achieve the purpose of conveying boxed items. The transmission roller 90 of the fixed conveyor device 70 is driven by a fixed conveyor motor. The door device 80 at the telescopic device 60 is driven by a transfer door motor 81 to complete the opening and closing of the door. The door device 80 at the fixed conveyor device 70 is driven by a conveyor door motor 82 to complete the opening and closing of the door.

[0064] Specifically, the lifting motor: is used to drive the vertical lifting device to perform vertical lifting motion.

[0065] The placement rack motor: is used to drive the placement rack device to perform a telescopic motion in the horizontal direction.

[0066] The grasping cylinder: is used to drive the grasping device to clamp boxed items.

[0067] The lifting cylinder: is used to drive the lifting device to perform a vertical motion.

[0068] The lifting conveyor motor: is used to drive the lifting device to convey boxed items.

[0069] The telescopic motor: is used to drive the telescopic device to perform a telescopic motion in the horizontal direction.

[0070] Retractable conveyor motor: used to drive the retractable device to convey boxed items.

[0071] Transfer door motor: used to drive the door device on the side of the retractable device to open and close.

[0072] Fixed conveyor motor: used to drive the fixed conveyor device to convey boxed items.

[0073] Conveyor door motor: used to drive the door device on the side of the fixed conveyor device to open and close.

[0074] As Figure 1 shown, the control system of the boxed logistics transfer station includes a main processing module and an access processing module, an entry and exit processing module, and a fixed conveyor module that are connected to and controlled by the main processing module. The access processing module and the entry and exit processing module are interconnected to facilitate the exchange of information between the access processing module and the entry and exit processing module. The main processing module is connected to a storage module and an input display module, and the main processing module is also connected to the logistics total control system.

[0075] Specifically, the main processing module: is used to receive commands from the logistics total control system and the input display module, combine the existing storage situation data of the transfer station stored in the storage module, obtain the working steps, and then transmit the working steps to the access processing module, the entry and exit processing module, or the fixed conveyor module respectively.

[0076] Access processing module: used to control the operation of the rack device, the vertical lifting device, and the grasping device according to the working steps.

[0077] Entry and exit processing module: used to control the operation of the lifting device and the retractable device according to the working steps.

[0078] Fixed conveyor module: used to control the operation of the fixed conveyor device according to the working steps.

[0079] The main processing module is also connected to a wireless module, and the wireless module is wirelessly connected to the logistics total control system to facilitate the control of the main processing module through the logistics total control system. The storage module is used to store the existing storage situation data of the transfer rack, and the stored data includes but is not limited to information about boxed items, the storage locations of boxed items, and the remaining unoccupied storage space, to facilitate manual control of the main processing module through the input display module.

[0080] The main processing module, the access processing module, the entry and exit processing module, and the fixed processing module are CPU processing chips, the storage module is a hard disk, and the input display module is a touch display screen.

[0081] As Figure 2As shown in the figure, the access processing module is connected to control a lifting motor, several rack motors, and a grasping cylinder. The access processing module is also connected to a set of lifting limit sensors, several sets of rack limit sensors, and several positioning sensors. A set of lifting limit sensors controls the lifting motor through the access processing module, that is, it limits the extreme positions of the vertical lifting device driven by the lifting motor. A set of rack limit sensors controls a corresponding rack motor through the access processing module, that is, it limits the extreme positions of the rack device driven by the rack motor. The positioning sensors control the lifting motor through the access processing module. The positioning sensors are connected to the rack motors at the same height. Specifically, all the positioning sensors respectively control a switch, and each switch is connected in series with a corresponding rack motor. When the corresponding positioning sensor senses the vertical lifting device, the switch connected in series with the rack motor is turned on, so that the rack motor can be powered on.

[0082] As Figure 2 shown in the figure, a set of lifting limit sensors includes a top sensor and a bottom sensor arranged at two extreme positions of the vertical lifting device. A set of rack limit sensors includes an outer sensor and an inner sensor arranged at two extreme positions of the rack device. The bottom sensor and the inner sensor are connected to the grasping cylinder. Specifically, the bottom sensor and the inner sensor respectively control a switch, and the grasping cylinder is controlled to drive the grasping device to work through the principle of a double-pole double-throw switch; all the outer sensors are connected to the lifting motor, that is, switches controlled one-to-one by all the outer sensors are connected in series to the circuit of the lifting motor. Only when the switches controlled by all the outer sensors are closed can the lifting motor work, avoiding the collision between the vertical lifting device and the rack device when the rack device extends and the lifting motor drives the vertical lifting mechanism to move.

[0083] As Figure 3 shown in the figure, the access and egress processing module is connected to control a lifting cylinder, a lifting conveyor motor, a telescopic motor, a telescopic conveyor motor, and a transfer door motor. The access and egress processing module is also connected to a front sensor, a rear sensor, a photoelectric switch, a lifting sensor, and a telescopic sensor.

[0084] The front sensor and the rear sensor cooperate to control the telescopic motor through the access and egress processing module.

[0085] The photoelectric switch and the lifting sensor cooperate to control the lifting conveyor motor through the access and egress processing module.

[0086] The photoelectric switch and the telescopic sensor cooperate to control the telescopic conveyor motor through the access and egress processing module

[0087] The specific front sensor and rear sensor define the limit positions of the telescopic motor driving the telescopic device. The lifting sensor is used to sense the entry and exit of boxed items into and out of the lifting device. The telescopic sensor is used for sensing, and the photoelectric switch is used to sense whether the boxed material has reached the grasping position, that is, directly below the vertical lifting device.

[0088] As Figure 3 shown, the rear sensor is connected to control the transfer door motor. That is, the rear sensor controls a switch in series with the transfer door motor, so that the telescopic device can only work when in the retracted state, avoiding collision between the door device at the telescopic device and the telescopic device. The front sensor is connected to control the lifting cylinder. That is, the front sensor controls a switch in series with the lifting cylinder, so that only when the front sensor senses the telescopic device, the lifting cylinder can drive the lifting device to perform a lifting movement, avoiding collision between the lifting device and the telescopic device.

[0089] As Figure 4 shown, the fixed conveyor module is connected to control a fixed conveyor motor and a transfer door motor, and the fixed conveyor module controls that only after the transfer door motor controls the door device at the fixed conveyor device to open, the fixed conveyor motor can work.

[0090] As Figures 1-4 shown, the control method of the boxed logistics transfer station control system includes:

[0091] Storage:

[0092] a. Determine the storage location: The input display module or the logistics total control system gives the main processing module an instruction that there is a new boxed item to be stored. The main processing module retrieves the existing storage situation data of the transfer racks stored in the storage module, determines whether it can still be stored. If it can be stored, it determines the storage location, and then the main processing module transmits the information of the determined storage location to the access processing module. If it cannot be stored, the main processing system will send the information that it cannot be stored to the logistics total control system or visually display it on the input display module.

[0093] b. Determine the entry position of the boxed item: The main processing module obtains the information about where the boxed item enters the transfer rack from the instruction given by the input display module or the logistics total control system, and then the main processing module transmits the information about where the boxed item enters the transfer rack to the entry and exit processing module.

[0094] c. Preparation for grasping: The in-out processing module transfers the boxed item to the grasping position according to the information on where the boxed item enters the transfer rack in step b. That is, before the boxed item enters, the positions of the telescopic device and the lifting device are adjusted first, so that the positions of the telescopic device or the lifting device can be connected to the corresponding conveyor belt, and then the boxed item can be smoothly received. After receiving it, the lifting sensor or the telescopic sensor senses the boxed item, and then the lifting sensor or the telescopic sensor feeds back the information to the in-out processing module. The in-out processing module controls the rotating roller of the telescopic device or the lifting device to work. When the photoelectric switch senses the boxed material, there are three cases:

[0095] First, the boxed material is on the lifting device and the lifting device is already in the lifted state. The in-out processing module gives the access processing module an instruction that it can perform grasping, and at the same time, the in-out processing module gives the main processing module feedback on the information that the boxed item enters the grasping position of the transfer rack.

[0096] Second, the boxed material is on the lifting device, but the lifting device is in the non-lifted state; at this time, after the in-out processing module controls the lifting device to lift, it gives the access processing module an instruction that it can perform grasping, and at the same time, the in-out processing module gives the main processing module feedback on the information that the boxed item enters the grasping position of the transfer rack.

[0097] Third, the boxed material is on the telescopic device. The in-out processing module controls the telescopic motor to drive the telescopic device to contract, so that the boxed material enters the grasping position of the rack. Then the in-out processing module gives the access processing module an instruction that it can perform grasping, and at the same time, the in-out processing module gives the main processing module feedback on the information that the boxed item enters the grasping position of the transfer rack.

[0098] d. Completing storage: After the access processing module receives the instruction that it can perform grasping given by the in-out processing module, the access processing module works according to the information on the determined storage position received in step a. Specifically, the access processing module simultaneously powers on the lifting motor and the grasping cylinder. However, because the switches connected to the bottom sensor and the inner sensor of the grasping cylinder are not in series, the grasping cylinder does not work. Instead, the lifting motor drives the vertical lifting device to descend. When the bottom sensor senses the vertical lifting device, the switches connected to the bottom sensor and the inner sensor are in series, so that the grasping cylinder is powered on, and then the grasping device grasps the boxed item. At the same time, the access processing module receives the information fed back by the bottom sensor and controls the vertical motor to stop.

[0099] Then the access processing module powers on the lifting motor and the corresponding rack motor simultaneously. However, for the rack motor, since the switch controlled by the corresponding positioning sensor is in the off state, the rack motor does not work. Instead, the lifting motor drives the vertical lifting device to rise until the corresponding positioning sensor senses the vertical lifting device. At this time, the switch controlled by the corresponding positioning sensor closes, thereby turning on the rack motor, causing the rack motor to drive the rack device to move towards the vertical lifting device. When the inner sensor senses the rack device, the switches connected to the bottom sensor and the inner sensor are disconnected again, causing the gripping cylinder to lose power, and then the gripping device releases. The boxed item is placed on the rack device. At the same time, the access processing module receives the information feedback from the inner sensor and controls the rack motor to stop.

[0100] Finally, the access processing module controls the rack motor to work, driving the rack device to move away from the vertical lifting device. When the outer sensor senses the rack device, the access processing module receives the information feedback from the outer sensor and controls the rack motor to stop. At the same time, the power supply to the gripping cylinder is also stopped.

[0101] After completion, the access processing module feeds back the completion information to the main processing module. The main processing module stores and transmits the information to the logistics total control system or visualizes it on the input display module.

[0102] Shipping:

[0103] e. Determine the shipping item: The input display module or the logistics total control system gives the main processing module the instruction of the boxed item to be shipped and the information of the boxed item to be shipped. The main processing module retrieves the existing storage situation data of the transfer rack stored in the storage module to determine whether there is such a boxed item. If there is, it determines the storage location of the boxed item, and then the main processing module transmits the information of the storage location of the boxed item to the access processing module; if there is no such boxed item, the main processing system will send the information that it cannot be missing to the logistics total control system or visualize it on the input display module.

[0104] f. Determine the shipping location of the boxed item: The main processing module learns from the instruction given by the input display module or the logistics total control system where the boxed item needs to be conveyed, and then the main processing module transmits the information of where the boxed item needs to be conveyed to the access and exit processing module.

[0105] g. Shipping preparation: After the access and exit processing module makes preparations to receive the boxed item according to the information of where the boxed item needs to be conveyed received in step f, it prepares to adjust the positions of the telescopic device and the lifting device so that the positions of the telescopic device or the lifting device can be connected to the corresponding conveyor belt for easy shipping. Then it gives the start working instruction to the access processing module.

[0106] The access processing module retrieves the boxed item according to the information on the storage location of the boxed item received in step e. Specifically, the access processing module simultaneously powers on the lifting motor, the grasping cylinder, and the corresponding placement rack motor. However, since the switches connected to the bottom sensor and the inner sensor of the grasping cylinder are not in series, the grasping cylinder does not work. And since the switch controlled by the corresponding positioning sensor of the placement rack motor is in the open state, the placement rack motor does not work. The lifting motor drives the vertical lifting device to move until the corresponding positioning sensor senses the vertical lifting device. Then, the access processing module receives the information fed back by the corresponding positioning sensor and controls the vertical motor to stop.

[0107] Meanwhile, the switch controlled by the corresponding positioning sensor closes, thereby turning on the placement rack motor, causing the placement rack motor to drive the placement rack device to move toward the vertical lifting device. Until the inner sensor senses the placement rack device, the switches connected to the bottom sensor and the inner sensor are disconnected again, enabling the grasping cylinder to be powered on. Then the grasping device grabs the boxed item. At the same time, the access processing module receives the information fed back by the inner sensor and controls the placement rack motor to stop.

[0108] Then the access processing module controls the placement rack motor to work, driving the placement rack device to move away from the vertical lifting device. Until the outer sensor senses the placement rack device, the access processing module receives the information fed back by the outer sensor and controls the placement rack motor to stop.

[0109] Then the access processing module controls the lifting motor to work, driving the vertical lifting device to move downward. Until the bottom sensor senses the vertical lifting device, the switches connected to the bottom sensor and the inner sensor are disconnected again, causing the grasping cylinder to lose power. Then the grasping device releases the boxed item, causing the boxed item to fall onto the telescopic device or the lifting device. At the same time, the access processing module receives the information fed back by the bottom sensor and controls the vertical motor to stop. After the retrieval is completed, the access processing module gives a working instruction to the in-out processing module.

[0110] d. Completing the shipment: The in-out processing module transports the boxed item out of the transfer rack according to the information on where the boxed item needs to be transported received in step f. Specifically, it is divided into three cases:

[0111] First, the boxed item falls onto the telescopic device. The in-out processing module controls the telescopic motor to drive the telescopic device to extend, then connect to other conveyor belts. Then the processing module controls the telescopic conveyor motor to drive the conveyor roller of the telescopic device to transport the boxed item out of the transfer rack.

[0112] Second, the boxed item falls onto the retractable device. The in-out processing module controls the lifting conveyor motor to drive the conveyor roller of the lifting device to transport the boxed item out of the transfer rack.

[0113] Thirdly, when the box-shaped article falls onto the shrinking device, the access processing module controls the lifting cylinder to drive the lifting device to descend, connect it to another conveyor belt, and then the access processing module controls the lifting conveyor motor to drive the transmission roller of the lifting device to convey the box-shaped article out of the transfer rack.

[0114] After the work is completed, the access processing module feeds back the completion information to the main processing module, and the main processing module stores and transmits the information to the general logistics control system or visually displays it on the input display module.

[0115] The box-shaped article passes through the transfer station

[0116] The general logistics control system gives an instruction to the main processing module that there is a new box-shaped article to pass through the transfer station. Then the main processing module sends the instruction to the fixed processing module. The fixed processing module controls the portal motor to open the door device at the fixed conveyor device, and then the fixed processing module controls the fixed conveyor motor to work so that the box-shaped article can be conveyed through the fixed conveyor device and pass through the transfer station.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A control system for a box-type logistics transfer station, wherein the transfer station includes a vertical lifting device for vertically transporting box-type articles, a placement rack device that can extend to one side of the vertical lifting device for placing box-type articles, a grasping device provided on the vertical lifting device for grasping box-type articles, a lifting device for horizontally transporting box-type articles to the lower side of the grasping device or horizontally transporting them out of the transfer station, a telescopic device for horizontally transporting box-type articles to the lower side of the grasping device or horizontally transporting them out of the transfer station, and a fixed conveyor device for directly horizontally transporting box-type articles through the transfer station, characterized in that; The control system includes: a main processing module, an access processing module, an entry / exit processing module, and a fixed transfer module that are connected to and controlled by the main processing module. The access processing module is interconnected with the entry / exit processing module. The main processing module is connected to a storage module and an input / display module, and the main processing module is also connected to a total logistics control system; The main processing module: is used to receive commands from the total logistics control system and the input / display module, combine the existing storage situation data of the transfer station stored in the storage module, obtain the working steps, and then transmit the working steps to the access processing module, the entry / exit processing module, or the fixed transfer module respectively; The access processing module: is used to control the operation of the rack device, the vertical lifting device, and the grasping device according to the working steps; The entry / exit processing module: is used to control the operation of the lifting device and the telescopic device according to the working steps; The fixed transfer module: is used to control the operation of the fixed transfer device according to the working steps; The access processing module is connected to and controls a lifting motor, a plurality of rack motors, and a grasping cylinder; The lifting motor: is used to drive the vertical lifting device to perform vertical lifting movement; The rack motor: is used to drive the rack device to perform horizontal telescopic movement; The grasping cylinder: is used to drive the grasping device to clamp boxed items; The access processing module is also connected to a group of lifting limit sensors, a plurality of groups of rack limit sensors, and a plurality of positioning sensors; A group of the lifting limit sensors controls the lifting motor through the access processing module. A group of the rack limit sensors controls a corresponding rack motor through the access processing module. The positioning sensors control the lifting motor through the access processing module, and the positioning sensors are connected to the rack motors at the same height; A group of the lifting limit sensors includes a top sensor and a bottom sensor arranged at two extreme positions of the vertical lifting device. A group of the rack limit sensors includes an outer sensor and an inner sensor arranged at two extreme positions of the rack device. The bottom sensor and the inner sensor are connected to the grasping cylinder, and all the outer sensors are connected to the lifting motor; The entry / exit processing module is connected to and controls a lifting cylinder, a lifting transfer motor, a telescopic motor, a telescopic transfer motor, and a transfer door motor; The lifting cylinder: is used to drive the lifting device to perform vertical movement; The lifting transfer motor: is used to drive the lifting device to transfer boxed items; The telescopic motor: is used to drive the telescopic device to perform horizontal telescopic movement; The telescopic transfer motor: is used to drive the telescopic device to transfer boxed items; The transfer door motor: is used to drive the door device on the side of the telescopic device to open and close; 2. The control system for a box-type logistics transfer station according to claim 1, characterized in that: The entry / exit processing module is also connected to a front sensor, a rear sensor, an optical switch, a lifting sensor, and a telescopic sensor: The front sensor and the rear sensor cooperate to control the telescopic motor through the entry / exit processing module; The optical switch and the lifting sensor cooperate to control the lifting transfer motor through the entry / exit processing module; The optical switch and the telescopic sensor cooperate to control the telescopic transfer motor through the entry / exit processing module.

3. The control system for a box-type logistics transfer station according to claim 2, characterized in that: The rear sensor is connected to the transfer door motor, and the front sensor is connected to the lifting cylinder.

4. The control system for a box-type logistics transfer station according to claim 1, characterized in that: The fixed conveyor module is connected to control a fixed conveyor motor and a transfer door motor; The fixed conveyor motor: is used to drive the fixed conveyor device to convey boxed items; The transfer door motor: is used to drive the door device on the side of the fixed conveyor device to open and close.

5. A control system for a box-type logistics transfer station according to claim 1, characterized in that: The main processing module is further connected to a wireless module, the wireless module is wirelessly connected to the logistics total control system, and the input display module is a touch display screen.

6. A control method for a control system for a box-type logistics transfer station according to claim 1, characterized in that: Including: Storage: a. Determine the storage location: The input display module or the logistics total control system gives the main processing module an instruction that there is a new boxed item to be stored. The main processing module retrieves the existing storage situation data of the transfer racks stored in the storage module to determine whether it can still be stored. If it can be stored, the storage location is determined, and then the main processing module transmits the information of the determined storage location to the access processing module; b. Determine the entry position of the boxed item: The main processing module obtains the information about where the boxed item enters the transfer rack from the instruction given by the input display module or the logistics total control system, and then the main processing module transmits the information about where the boxed item enters the transfer rack to the access and exit processing module; c. Grabbing preparation: The access and exit processing module conveys the boxed item to the grabbing position according to the information about where the boxed item enters the transfer rack received in step b, and then the access and exit processing module gives the access processing module an instruction that it can perform the grabbing. At the same time, the access and exit processing module gives the main processing module feedback on the information that the boxed item enters the grabbing position of the transfer rack; d. Complete storage: After the access processing module receives the instruction that it can perform the grabbing given by the access and exit processing module, the access processing module works according to the information about the determined storage location received in step a to complete the storage of the boxed item; Shipping: e. Determine the shipped item: The input display module or the logistics total control system gives the main processing module an instruction for the boxed item to be shipped and the information about the boxed item to be shipped. The main processing module retrieves the existing storage situation data of the transfer racks stored in the storage module to determine whether there is such a boxed item. If there is, the storage location of the boxed item is determined, and then the main processing module transmits the information about the storage location of the boxed item to the access processing module; f. Determine the shipping position of the boxed item: The main processing module obtains from the instruction given by the input display module or the logistics total control system the information about where the boxed item needs to be conveyed, and then the main processing module transmits the information about where the boxed item needs to be conveyed to the access and exit processing module; g. Shipping preparation: After the access and exit processing module makes preparations for receiving the boxed item according to the information about where the boxed item needs to be conveyed received in step f, it then gives the access processing module an instruction to start working; The access processing module takes out the boxed item according to the information about the storage location of the boxed item received in step e. After taking it out, the access processing module gives the access and exit processing module an instruction to work; h. Completing shipment: The incoming and outgoing processing module conveys the boxed items out of the transfer rack according to the information on where the boxed items received in step f need to be conveyed.

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