Automatic scheduling method of relay type vertical sorting machine

Abstract

The invention provides an automatic scheduling method of a relay type vertical sorting machine, a cargo loading signal is a signal sent by an electronic component when cargoes exist at a cargo taking position of an elevator car, a task number is an identification number distributed when the elevator car is in an idle state, the automatic scheduling method comprises the following steps: S1, checking: obtaining cargo delivery task information, cyclically checking whether each goods taking position has a goods loading signal or not; s2, searching a task number; s3, a goods taking instruction is issued, specifically, the goods taking instruction is sent to the elevator car corresponding to the task number, a goods taking control process is started synchronously, and a synchronous lock is unlocked and removed from the corresponding task number; the goods taking instruction comprises a goods taking position and a target position; s4, automatic conveying; and S5, placing and resetting. The multiple vertical sorting machines are used in the same hoistway for relay conveying, the conveying efficiency is effectively improved, and therefore the conveying efficiency is improved, more accurate equipment control is achieved, automatic dispatching of the hoists is achieved, and the multi-link influence caused by dispatching through an upper computer is avoided.

Description

Technical Field

[0001] The invention relates to an automatic dispatching method for a relay type vertical sorting machine, belonging to the technical field of control methods. Background Art

[0002] Vertical sorting machines are widely used in automated logistics systems. Traditional vertical sorting machines are mostly single reciprocating and circular sorting machines. A single reciprocating sorting machine has a certain efficiency and can only transmit a certain amount of goods each time. It is very suitable for short-distance transmission, but its transmission efficiency will be limited in high-rise long-distance transmission. The circular transmission efficiency is high, but it is also suitable for short distances. It is not suitable for high-rise long-distance transmission due to the dual influence of the site and height. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an automatic scheduling method for a relay-type vertical sorting machine. The automatic scheduling method for a relay-type vertical sorting machine uses multiple vertical sorting machines in the same shaft for relay transmission, effectively improving the transmission efficiency, thereby improving the transmission efficiency and achieving more precise equipment control.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides an automatic dispatching method for a relay type vertical sorting machine, wherein the cargo signal is a signal sent by an electronic component when there is cargo at a pickup position of a lift car, and the task number is an identification number assigned when the lift car is in an idle state, and the method comprises the following steps:

[0006] S1. Check: Get the delivery task information and cyclically check whether there is a loading signal at each pickup location;

[0007] S2. Find the task number: For the pickup location with the cargo signal, traverse and calculate to query the task number closest to it, and open the synchronization lock for the task number closest to it;

[0008] S3, issuing a pickup instruction: sending a pickup instruction to the elevator car corresponding to the task number and synchronously starting the pickup control process, unlocking the synchronization lock of the corresponding task number and canceling it; the pickup instruction includes the pickup location and the target location;

[0009] S4, automatic transportation: the elevator car enters the pickup control process according to the pickup instruction, first moves to the pickup position and stops, then loads the goods, and then the elevator car moves to a relatively close position and stops; the relatively close position is the closer position between the target position and the maximum range position;

[0010] S5, cargo release reset: if the relative close position is the target position, then unload the cargo; if the relative close position is the maximum range position, the current elevator car sends a cargo signal to wait for other elevator cars to arrive at the unloading position, then receive the cargo, and then move to the initial position and set the task number.

[0011] The unloading is to open the drum in the unloading direction until a period of time after the loading signal is generated.

[0012] The receiving of goods is to open the drum in the down direction for a period of time.

[0013] The loading is to open the roller in the loading direction to pick up the goods until the loading signal disappears and it is empty for a period of time.

[0014] The maximum range position is the farthest position to which the elevator car can travel from an initial position.

[0015] Before opening the drum, first check whether the landing door is open, and if it is not open, an alarm is given.

[0016] After the period of time, check whether the layer is closed. If it is closed, proceed to the next step. If it is not closed, an alarm is issued.

[0017] In the step S1, when the cargo signal is checked cyclically, the task number is queried at the same time.

[0018] In step S5, after receiving the goods, the other elevator cars send a pickup completion instruction to the current elevator car.

[0019] The beneficial effects of the present invention are: using multiple vertical sorting machines for relay transmission in the same shaft effectively improves the transmission efficiency, thereby improving the transmission efficiency, achieving more accurate equipment control, and automatically scheduling the elevator, avoiding the multi-link influence caused by scheduling through the host computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an exemplary flow diagram of at least one embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the operating principle of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0023] The first embodiment of the present invention relates to an automatic dispatching method for a relay type vertical sorting machine, wherein the cargo signal is a signal sent by an electronic component when there is cargo at a pickup position of a lift car, and the task number is an identification number assigned when the lift car is in an idle state, and comprises the following steps:

[0024] S1. Check: Get the delivery task information and cyclically check whether there is a loading signal at each pickup location;

[0025] S2. Find the task number: For the pickup location with the cargo signal, traverse and calculate to query the task number closest to it, and open the synchronization lock for the task number closest to it;

[0026] S3, issuing a pickup instruction: sending a pickup instruction to the elevator car corresponding to the task number and synchronously starting the pickup control process, unlocking the synchronization lock of the corresponding task number and canceling it; the pickup instruction includes the pickup location and the target location;

[0027] S4, automatic transportation: the elevator car enters the pickup control process according to the pickup instruction, first moves to the pickup position and stops, then loads the goods, and then the elevator car moves to a relatively close position and stops; the relatively close position is the closer position between the target position and the maximum range position;

[0028] S5, cargo release reset: if the relative close position is the target position, then unload the cargo; if the relative close position is the maximum range position, the current elevator car sends a cargo signal to wait for other elevator cars to arrive at the unloading position, then receive the cargo, and then move to the initial position and set the task number.

[0029] The second embodiment of the present invention is substantially the same as the first embodiment, mainly in that, during unloading, the drum is opened in the unloading direction until a certain period of time has passed after the loading signal is generated.

[0030] Furthermore, to receive the goods, the drum is opened for a period of time in the downward direction.

[0031] Furthermore, before opening the drum, check whether the floor door is open, and if it is not open, an alarm is sounded.

[0032] Furthermore, after a period of time, check whether the layer is closed. If it is closed, proceed to the next step. If it is not closed, an alarm is issued.

[0033] Furthermore, loading is performed by opening the roller in the loading direction to pick up the goods until the loading signal disappears and it is empty for a period of time.

[0034] The third embodiment of the present invention is substantially the same as the first embodiment, primarily in that the maximum range position is the farthest position to which the elevator car can travel from the initial position.

[0035] Furthermore, in step S1, when the cargo signal is cyclically checked, the task number is queried at the same time.

[0036] Furthermore, in step S5, after receiving the goods, the other elevator cars send a pickup completion instruction to the current elevator car.

[0037] Based on the above, a typical overall operation mode of the present invention is as follows Figure 1 , Figure 2 As shown, the details are as follows:

[0038] After the system is started, the primary car T1 task is executed: the system automatically checks in a loop whether there is cargo at each elevator car pickup position (one or more). When car T1 is idle and the cargo is transferred to the car pickup position, the system analyzes and processes the logical information of each pickup position (such as task number, source address, and target address), compares the task numbers, finds the smallest task number of the current pickup position, and uses this task as the current task to be executed. The tasks to be executed are processed step by step. First, according to the source address information of the task (i.e. the floor address where the goods are located), the address for the car to pick up the goods is issued. The car receives the order to pick up the goods and automatically runs to the source address of the task. After the car stops, the door opening command for the pickup position is issued. After the floor door is opened, the goods at the pickup position are transferred to the car through the roller to complete the pickup. At the same time, the door closing command for the pickup position is issued, and the floor door is automatically closed. At the same time, the relay elevator T2 is authorized to perform task search. Secondly, according to the target address information of the task (i.e. the floor address where the goods are about to be delivered), the address for the car to release the goods is issued. The car receives the order to release the goods and automatically runs to the target address of the task. After the car stops, a signal that the goods can be picked up is issued to T2. When the T2 car runs to the handover position with T1, the goods in the T1 car are transferred to the T2 car through the car roller to complete the delivery. After the task is completed, the relevant information is reset and the next task can be processed.

[0039] After the system is started, the relay car T2 task is executed: the system automatically checks in a loop whether there is any cargo at the delivery position of the T1 car. When the car T2 is idle, after finding that there is cargo at the delivery position of T1, the system analyzes and processes the logical information of the cargo at the delivery position (such as task number, source address, and target address), and uses this task as the current task to be executed. The tasks to be executed are processed step by step. First, according to the source address information of the parsed task (that is, the T1 delivery position, which is also the handover position with T2), the car pickup walking address is issued. The car receives the pickup instruction and automatically runs to the task source address. After the car stops, it determines whether T1 has a pickup signal. If there is a pickup signal, the cargo at the T1 delivery position is transferred to the T2 car through the roller to complete the pickup, and the pickup completion instruction is issued at the same time. Secondly, if T2 is the final relay, according to the target address information of the task (i.e. the floor address where the goods are about to be delivered), the address of the car to release the goods is issued. The car receives the release instruction and automatically runs to the target address of the task. After the car stops, the door opening instruction of the delivery position is issued. After the floor door is opened, the goods in the car are transferred to the corresponding target position through the roller to complete the delivery. At the same time, the door closing instruction of the delivery position is issued, and the floor door is automatically closed. After the task is completed, the next task can be processed after resetting the relevant information. If there are N relay cars, the relay elevator T3 is authorized to search for tasks at this time; again, according to the target address information of the task (i.e. the floor address where the goods are about to be delivered), the address of the car to release the goods is issued. The car receives the release instruction and automatically runs to the target address of the task. After the car stops, the signal that the goods can be picked up is issued to T3. When the T3 car runs to the handover position with T2, the goods in the T2 car are transferred to the T3 car through the car roller to complete the delivery. After the task is completed, the next task can be processed after resetting the relevant information. If there are N relay cars, the relay transmission will continue according to this rule until it reaches the final target floor position.

Claims

1. An automatic dispatching method for a relay type vertical sorting machine, characterized in that: The cargo signal is a signal sent by the electronic components when there is cargo at the pickup position of the elevator car, and the task number is an identification number assigned when the elevator car is in an idle state, including the following steps: S1. Check: Get the delivery task information and cyclically check whether there is a loading signal at each pickup location; S2. Find the task number: For the pickup location with the cargo signal, traverse and calculate to query the task number closest to it, and open the synchronization lock for the task number closest to it; S3, issuing a pickup instruction: sending a pickup instruction to the elevator car corresponding to the task number and synchronously starting the pickup control process, unlocking the synchronization lock of the corresponding task number and canceling it; the pickup instruction includes the pickup location and the target location; S4, automatic transportation: the elevator car enters the pickup control process according to the pickup instruction, first moves to the pickup position and stops, then loads the goods, and then the elevator car moves to a relatively close position and stops; the relatively close position is the closer position between the target position and the maximum range position; S5, cargo release reset: if the relative close position is the target position, then unload the cargo; if the relative close position is the maximum range position, the current elevator car sends a cargo signal to wait for other elevator cars to arrive at the unloading position, then receive the cargo, and then move to the initial position and set the task number.

2. The automatic dispatching method of the relay type vertical sorting machine according to claim 1, characterized in that: The unloading is to open the drum in the unloading direction until a period of time after the loading signal is generated.

3. The automatic dispatching method of the relay type vertical sorting machine according to claim 1, characterized in that: The receiving of goods is to open the drum in the down direction for a period of time.

4. The automatic dispatching method of the relay type vertical sorting machine according to claim 1, characterized in that: The loading is to open the roller in the loading direction to pick up the goods until the loading signal disappears and it is empty for a period of time.

5. The automatic dispatching method of the relay type vertical sorting machine according to claim 1, characterized in that: The maximum range position is the farthest position to which the elevator car can travel from an initial position.

6. The automatic dispatching method of the relay type vertical sorting machine according to claim 2 or 3, characterized in that: Before opening the drum, first check whether the landing door is open, and if it is not open, an alarm is given.

7. The automatic dispatching method of the relay type vertical sorting machine according to claim 2 or 3, characterized in that: After the period of time, check whether the layer is closed. If it is closed, proceed to the next step. If it is not closed, an alarm is issued.

8. The automatic dispatching method of the relay type vertical sorting machine according to claim 1, characterized in that: In the step S1, when the cargo signal is checked cyclically, the task number is queried at the same time.

9. The automatic dispatching method of a relay type vertical sorting machine according to claim 1, characterized in that: In step S5, after receiving the goods, the other elevator cars send a pickup completion instruction to the current elevator car.

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