Warehouse laser-guided picking operation method

Abstract

The invention relates to the technical field of warehouse logistics, and discloses a warehouse laser-guided picking operation method which comprises the following steps: firstly, arranging three-dimensional goods shelves on the ground of a warehouse in a rectangular array manner; then a laser signal receiver with a unique number, a two-dimensional code with a unique number and a confirmation button are fixedly installed in front of each storage unit of the three-dimensional goods shelf, then a laser pen capable of swinging is installed at the top of the warehouse, and then warehouse three-dimensional map information is established in a cloud server; comprising a warehouse ground coordinate system and a three-dimensional shelf coordinate system. By means of the warehouse laser guiding order picking operation method, only the order picker needs to be simply trained how to trigger laser guiding, the lazy order picker can be supervised and urged to move very simply and timely, and the effects that automatic bookkeeping is not prone to errors, and efficiency is high can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of warehouse logistics, and in particular to a warehouse laser-guided picking operation method. Background Art

[0002] In the modern logistics and warehousing industry, order picking is the core of the entire warehouse and distribution process, and it is also the part with a relatively high cost. The picking technology ranges from Pick by paper (picking by paper picking list), Pick by RF (picking with wireless radio frequency gun), pick to light (picking by electronic tag), and Pick to voice (picking by voice). However, all of the above picking methods require training and other steps before employees can complete the operation, and there are many disadvantages. For example, when picking orders, pickers spend a lot of time moving back and forth between the aisles of the shelves, and the time actually used for picking accounts for only a small proportion. This is mainly because the traditional picking method cannot reasonably plan the picking path, and there are a lot of redundant actions and procrastination in the picking process, resulting in low picking efficiency. In addition, the traditional picking method uses paper documents to manually check or use computer accounting, which is prone to human errors and low efficiency, greatly increasing the probability of errors. For this reason, a method is proposed that only requires simple training to enable sorters to get goods accurately and quickly and can automatically record accounts. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a warehouse laser-guided picking operation method, which has the advantages of greatly reducing the time for training pickers, being able to promptly urge lazy pickers, and having automatic accounting that is not prone to errors and is highly efficient. It solves the problems of needing to spend a lot of time training pickers, being difficult to promptly detect lazy pickers, and being prone to errors and low efficiency in manual accounting.

[0004] (II) Technical solution In order to achieve the above-mentioned advantages of greatly reducing the time for training pickers, timely urging lazy pickers, and automatic accounting that is not prone to errors and high efficiency, the present invention provides the following technical solutions: A warehouse laser-guided picking operation method, characterized in that it includes the following steps: Step 1: Arrange the three-dimensional shelves in a rectangular array on the warehouse floor; Step 2: A laser signal receiver with a unique number, a QR code with a unique number, and a confirmation button are fixedly installed in front of each storage unit of the three-dimensional shelf; Step 3: Install a swingable laser pointer on the top of the warehouse; Step 4: Create warehouse 3D map information in the cloud server, including the warehouse ground coordinate system and the 3D shelf coordinate system; Step 5: Build a handheld PDA version of the mobile device; Step 6: Configure an indoor positioning bracelet such as RFID, Bluetooth, Lora or WiFi. The positioning information will be synchronized to the cloud server in real time through the WiFi network in the warehouse. Step 7: Place computers, printers, trolleys and other auxiliary equipment near the warehouse entrance; Step 8: The picker wears an indoor positioning bracelet and holds a PDA mobile device to receive the inbound and outbound orders in front of the printer; Step 9: The picker scans the order through a handheld PDA mobile terminal and performs warehousing and outbound tasks according to the guidance of the laser.

[0005] Preferably, the widths of the three-dimensional shelves in the same horizontal row are as similar as possible, the lengths of the three-dimensional shelves in the same vertical row are as similar as possible, the sidewalks are as horizontal and vertical as possible, and the shelves are prevented from blocking the sidewalks.

[0006] Preferably, the upper and lower laser signal receivers need to be installed in staggered positions to the left and right, the receiving surface of the laser signal receiver needs to face upward and there must be no foreign objects above it, the laser signal receiver transmits the received laser signal to the control cabinet via a cable or wireless network, and the laser signal receiver also emits an audible and visual signal when triggered, the QR code and the confirmation button face forward and there must be no foreign objects in front of it.

[0007] Preferably, the laser pen is installed in the middle position above the sidewalk and preferably at the intersection. Each laser pen can rotate forward, backward, left and right. The installation spacing of the laser pens depends on the actual situation. The laser is required to illuminate all sidewalks and all laser signal receivers and be clearly visible. Each laser pen is only responsible for guiding the planned area and will be taken over by another laser pen when exceeding the area.

[0008] Preferably, the three-dimensional map of the warehouse established in the cloud server is used to calculate the best route for the picker to move to the target cargo location and direct the laser pointer to work.

[0009] Preferably, the handheld PDA version mobile terminal is connected to the cloud server via a wireless network, and the result of scanning the code by the handheld PDA version mobile terminal is directly uploaded to the cloud.

[0010] Preferably, the location information of the picker is uploaded to the cloud and then used as the starting point of the guidance route, and the starting point of the route is updated in real time, and then the route is updated in real time to ensure that the laser light spot hits the eyes of the picker.

[0011] Preferably, when each task is executed, an alarm signal can be issued if the laser pointer does not move for a long time. After a task is completed, the length of the path and the number of goods will be counted to the cloud, and the work efficiency of the pickers can be calculated based on these data, so that the pickers who are procrastinating and taking advantage of the situation can be directly found out.

[0012] Compared with the prior art, the present invention provides a warehouse laser-guided picking operation method, which has the following beneficial effects: 1. The laser-guided picking operation method of the warehouse can very intuitively indicate the correct walking route to the picker through laser guidance. When the laser signal receiver is triggered by the laser, it can directly prompt the picker with the storage location through sound and light signals. Since the laser guidance is clear and the rules are simple, it is very simple to simply train the picker on how to trigger the laser guidance.

[0013] 2. The warehouse's laser-guided picking operation method uses laser guidance to update the picker's position in real time. If the picker stays in one position or moves slowly or leaves the warehouse area during the task, it can be monitored in time, and the lazy picker can be urged to move in time.

[0014] 3. The warehouse laser-guided picking operation method automatically deducts or adds changes in goods through the laser signal sent by the laser pen to the laser signal receiver, which can realize automatic accounting without error and high efficiency. DETAILED DESCRIPTION

[0015] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] A warehouse laser-guided picking operation method comprises the following steps: arranging three-dimensional shelves in a rectangular array on the warehouse floor, the widths of the three-dimensional shelves in the same horizontal row are as similar as possible, the lengths of the three-dimensional shelves in the same vertical row are as similar as possible, the sidewalks are as horizontal and vertical as possible and the shelves are prevented from blocking the sidewalks, a laser signal receiver with a unique number, a two-dimensional code with a unique number and a confirmation button are fixedly installed in front of each storage unit of the three-dimensional shelf, the upper and lower laser signal receivers need to be installed at staggered positions, the receiving surface of the laser signal receiver needs to face upwards and no foreign matter can be placed above, and the laser signal receiver is connected to the storage unit through a cable or a wireless network. The network will receive the laser signal and transmit it to the control cabinet. When the laser signal receiver is triggered, it will also send out sound and light signals. The QR code and the confirmation button are facing forward and there should be no foreign objects in front. A swingable laser pen is installed on the top of the warehouse. The laser pen is installed in the middle position above the sidewalk and is preferably installed at the intersection. Each laser pen can be rotated forward, backward, left and right. The installation spacing of the laser pen depends on the actual situation. The laser is required to illuminate all sidewalks and all laser signal receivers and be clearly visible. Each laser pen is only responsible for guiding the planned area and will be connected by another laser pen when it exceeds the area. A three-dimensional map of the warehouse is established in the cloud server, including the warehouse floor. Coordinate system and three-dimensional shelf coordinate system. The three-dimensional map of the warehouse established in the cloud server is used to calculate the best route for the picker to move to the target cargo location and command the laser pen to work. A handheld PDA version of the mobile terminal is built. The handheld PDA version of the mobile terminal is connected to the cloud server through a wireless network. The result of the handheld PDA version of the mobile terminal scanning the code is directly uploaded to the cloud. Configure RFID, Bluetooth, lora or wifi one of the indoor positioning bracelets. The positioning information is synchronized to the cloud server in real time through the wifi network in the warehouse. The location information of the picker is uploaded to the cloud and used as the starting point of the route guidance in the future. The route starting point is updated in real time, and then real-time Update the route to ensure that the laser spot hits the picker's eyes. Auxiliary equipment such as computers, printers, and carts are placed near the warehouse entrance. The picker wears an indoor positioning bracelet and holds a PDA version of the mobile device to receive the incoming and outgoing orders in front of the printer. The picker scans the order through the handheld PDA version of the mobile device and performs the incoming and outgoing tasks according to the guidance of the laser. During the execution of each task, if the laser indicator does not move for a long time, an alarm signal will be issued. After a task is completed, the length of the path and the quantity of goods will be counted to the cloud, and the work efficiency of the picker will be calculated based on these data, and the pickers who are procrastinating and taking advantage of the situation can be directly found out.

[0017] Example 1: Goods entering the warehouse First, the goods that need to be stored are piled on a cart. The picker then holds the PDA version of the mobile terminal and pushes the cart to the area where the laser can guide the goods. At this time, the cloud server locates the goods in real time through the picker's positioning bracelet. The picker then scans the QR code of one of the goods with the PDA version of the mobile terminal and uploads the scanned code information to the cloud. If the same goods already exist in the warehouse, the cloud server will cast a laser to the ground with the picker's position as the starting point, and then use the location where the goods are stored as the end point. The cloud server then sends a laser to the ground. The sensor automatically plans the nearest barrier-free route based on the positions of the starting and ending points and the direction of the sidewalk. The laser pen then starts to rotate and points to the starting point, projecting a light spot downward. The laser pen continues to rotate and moves toward the end point at a certain speed along the planned route. The picker follows the light spot on the ground and synchronizes the picker's position to the cloud server in real time. If the light spot is too far away from the picker, it moves back to the picker to avoid the picker not seeing it. The light spot moves at a speed of about 80 meters per minute. In the case of real-time positioning of the picker, it can be known whether the picker is slow or not. When the laser guides the picker to the target goods storage warehouse, the laser pen will hit the laser signal receiver in front of the target storage warehouse, and then the picker uses the handheld PDA version of the mobile terminal to scan the QR code at the front of the storage warehouse, and then scans the goods and puts them in the storage warehouse. At this time, each time the code is scanned, the laser pen will use a specific frequency to flash a cycle, such as flashing 3 times quickly, then long bright 1 time, and then flashing 3 times quickly. After receiving this series of frequency flashes, the laser signal receiver sends a signal to the cloud server to add a commodity. When a commodity is stored, press the confirmation button, and then the laser pen continues to guide the picker to put other commodities. If there is no identical commodity in the warehouse, or the original warehouse is full, find an empty warehouse to scan the code and put the goods in. After the picker completes a warehousing task, the cloud server calculates the work efficiency by the time the task is completed, the length of the path and the number of commodities.

[0018] Example 2: Goods out of warehouse First, use the printer to print out the list of goods to be taken, and each list of goods has a QR code. Then the picker takes the delivery order and pushes an empty cart with a PDA mobile terminal to the area where the laser can guide. At this time, the cloud server locates the picker in real time through the picker's positioning bracelet. Then the picker scans the QR code on the delivery order with the PDA mobile terminal, and the PDA mobile terminal uploads the scanned information to the cloud. Then the cloud server casts a laser on the ground starting from the picker's position, and then sends a laser to the ground according to the storage location of the goods on the delivery order. The cloud server automatically plans the nearest barrier-free route based on the starting point, the nearest terminal position and the direction of the sidewalk. The laser pen then starts to rotate and points to the starting point, projecting a light spot downward. The laser pen continues to rotate and moves toward the nearest terminal at a certain speed along the planned route. The picker follows the light spot on the ground and synchronizes the picker's position to the cloud server in real time. If the light spot is too far away from the picker, it moves back to the picker to avoid being invisible to the picker. The speed of the light spot movement is about 80 meters per minute. When locating the picker, it can be known whether the picker walks slowly or stays in one place for a long time. If this happens, an alarm signal will be issued to remind the picker not to slack off. The area that a laser pen is responsible for guiding is limited in size. If it exceeds the specified area, the laser pen in another area will be used for guidance. When the laser guides the picker to the target cargo storage warehouse, the laser pen will hit the laser signal receiver in front of the target storage warehouse, and then the picker uses the handheld PDA version of the mobile terminal to scan the QR code at the front of the storage warehouse, and then takes the goods from the warehouse and scans the QR code of the goods and puts it on the cart. At this time, each time the code is scanned, the cargo laser pen uses a specific frequency to flash a cycle, such as flashing quickly 2 times, then long bright 1 time, and then flashing quickly 2 times. After receiving this series of frequency flashes, the laser signal receiver sends a signal to the cloud server to reduce a commodity. When the required quantity of a commodity is taken out, press the confirmation button, and then the laser pen continues to guide the picker to take other commodities. After the picker completes an outbound task, the cloud server calculates the work efficiency by the time the task is completed, the length of the path and the number of commodities.

[0019] To sum up, the laser-guided picking operation method of the warehouse can very intuitively indicate the correct walking route to the pickers through laser guidance, and the laser guidance is clear and the rules are simple, so the pickers only need to be simply trained on how to trigger the laser guidance. Through laser guidance and real-time updating of the pickers' positions, if the pickers stay in one position or move slowly or leave the warehouse area during the task, they can be monitored in time, and the lazy pickers can be urged to move in time. The laser signal sent by the laser pen to the laser signal receiver automatically deducts or adds changes in goods, and automatic accounting can be realized, which is not prone to errors and is highly efficient. At the end of the month, the pickers' walking routes and the number of goods in and out of the warehouse can be used as performance appraisals to urge the pickers to work harder and get more.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A warehouse laser-guided picking operation method, characterized in that: The following steps are involved: Step 1: Arrange the three-dimensional shelves in a rectangular array on the warehouse floor; Step 2: A laser signal receiver with a unique number, a QR code with a unique number, and a confirmation button are fixedly installed in front of each storage unit of the three-dimensional shelf; Step 3: Install a swingable laser pointer on the top of the warehouse; Step 4: Create warehouse 3D map information in the cloud server, including the warehouse ground coordinate system and the 3D shelf coordinate system; Step 5: Build a handheld PDA version of the mobile device; Step 6: Configure an indoor positioning bracelet such as RFID, Bluetooth, Lora or WiFi. The positioning information will be synchronized to the cloud server in real time through the WiFi network in the warehouse. Step 7: Place computers, printers, trolleys and other auxiliary equipment near the warehouse entrance; Step 8: The picker wears an indoor positioning bracelet and holds a PDA mobile device to receive the inbound and outbound orders in front of the printer; Step 9: The picker scans the order through a handheld PDA mobile terminal and performs warehousing and outbound tasks according to the guidance of the laser.

2. The warehouse laser-guided picking operation method according to claim 1, characterized in that: The step 1: the widths of the three-dimensional shelves in the same horizontal row are as similar as possible, the lengths of the three-dimensional shelves in the same vertical row are as similar as possible, the sidewalks are as horizontal and vertical as possible, and the shelves are prevented from blocking the sidewalks.

3. The warehouse laser-guided picking operation method according to claim 1, characterized in that: Step 2: The upper and lower laser signal receivers need to be installed in staggered positions to the left and right, the receiving surface of the laser signal receiver needs to face upwards and there must be no foreign objects above it, the laser signal receiver transmits the received laser signal to the control cabinet via a cable or wireless network, and the laser signal receiver also emits an audible and visual signal when triggered, the QR code and the confirmation button face forward and there must be no foreign objects in front of it.

4. The warehouse laser-guided picking operation method according to claim 1, characterized in that: Step three: The laser pen is installed in the middle position above the sidewalk and preferably at the intersection. Each laser pen can rotate forward, backward, left and right. The installation spacing of the laser pen depends on the actual situation. The laser is required to illuminate all sidewalks and all laser signal receivers and be clearly visible. Each laser pen is only responsible for guiding the planned area and will be connected by another laser pen when exceeding the area.

5. The warehouse laser-guided picking operation method according to claim 1, characterized in that: Step 4: The three-dimensional warehouse map established in the cloud server is used to calculate the best route for the picker to move to the target cargo location and direct the laser pen to work.

6. The warehouse laser-guided picking operation method according to claim 1, characterized in that: Step 5: The handheld PDA version mobile terminal is connected to the cloud server via a wireless network, and the result of scanning the code by the handheld PDA version mobile terminal is directly uploaded to the cloud.

7. The warehouse laser-guided picking operation method according to claim 1, characterized in that: Step six: The location information of the picker is uploaded to the cloud and used as the starting point of the guidance route, and the starting point of the route is updated in real time, and then the route is updated in real time to ensure that the laser light spot hits the picker's eyes.

8. The warehouse laser-guided picking operation method according to claim 1, characterized in that: Step nine: When each task is executed, if the laser indicator does not move for a long time, an alarm signal will be issued. After a task is completed, the length of the path and the number of goods will be counted in the cloud, and the work efficiency of the picker will be calculated based on these data, so that the pickers who are procrastinating and taking advantage of the situation can be directly found out.