Intelligent warehouse system based on LoRaWAN wireless communication technology and working method thereof

Abstract

The invention discloses an intelligent warehouse system based on a LoRaWAN wireless communication technology and a low-power-consumption working method thereof, the system comprises a cloud server, a LoRaWAN gateway, a plurality of zone position guiding terminals and a material guiding terminal, the material guiding terminal integrates a main control unit, a LoRa module, an indicating lamp, a buzzer and a physical button, a unique ultra-low-power-consumption working method is adopted, and the LoRaWAN wireless communication technology and the LoRaWAN wireless communication technology are integrated. And through periodic dormancy and wake-up monitoring instructions, battery endurance of several months or more is realized. When the system works, goods are accurately positioned through secondary acousto-optic guidance, three closing modes of manual operation, instruction and time delay are supported, and inventory data are synchronized in real time through PDA / APP. The characteristics of wide coverage and strong penetration of the LoRaWAN are utilized, the problems that a traditional warehousing system is difficult to deploy, poor in coverage and high in power consumption are solved, precise, efficient and intelligent management of warehousing operation is achieved, and the inventory accuracy and the operation efficiency are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of smart warehouse technology, and specifically to a smart warehouse system based on LoRaWAN wireless communication technology and its working method. Background Technology

[0002] Currently, factory warehousing faces a severe challenge from a surge in demand for multi-variety, small-batch, and short-delivery orders. Traditional static storage and reliance on manual paper-based operations are no longer adequate for efficient and accurate on-demand material requisition and warehousing, revealing the following key pain points:

[0003] 1. Traditional methods heavily rely on manual memory and material retrieval, especially when handling a wide variety of electronic components and small materials. Pickers spend a significant amount of time navigating the warehouse searching for target locations, resulting in extremely low picking efficiency. This not only forces production lines to halt due to waiting for materials but also easily leads to shipping errors, untimely inventory data updates, and other problems, resulting in serious discrepancies between inventory records and actual stock, severely restricting the accuracy of production planning and the responsiveness of the supply chain.

[0004] 2. Traditional warehousing models cannot achieve real-time visualization and dynamic updates of inventory information. Managers have difficulty grasping accurate inventory data, which makes it impossible to make scientific procurement and production decisions, resulting in both inventory backlog and material shortage risks.

[0005] 3. Existing wired sensor network solutions require rewiring, which is complex, costly, and prone to damaging existing warehouse structures. Traditional wireless communication technologies also have significant drawbacks: for example, Bluetooth and ZigBee technologies have short communication ranges and weak obstacle penetration capabilities, making them difficult to cover large warehouse spaces; Wi-Fi technology has high power consumption and requires numerous access points, resulting in substantial construction and maintenance costs; while cellular network technologies (such as 4G / 5G or NB-IoT) offer wide coverage, their communication modules are expensive and they rely on operator networks, generating continuous operating costs, which does not meet enterprises' expectations for low-cost, highly autonomous IoT solutions.

[0006] Therefore, there is an urgent need in this field for a wireless communication solution that can take into account wide-area coverage, low power consumption, low-cost deployment, high reliability, and easy rapid implementation in existing warehousing environments, in order to build a truly practical and efficient intelligent warehouse management system and overcome the aforementioned long-standing technical bottlenecks. Summary of the Invention

[0007] The problem solved by this invention is that the conical wheel of the scraper blasting booth in the prior art is prone to dust accumulation and jamming, which affects the normal blasting operation. This invention provides an intelligent warehouse system based on LoRaWAN wireless communication technology and its low-power operation method.

[0008] The present invention is achieved through the following technical solution: an intelligent warehouse system based on LoRaWAN wireless communication technology, comprising: a cloud server for data storage, processing, analysis and instruction generation;

[0009] The LoRaWAN gateway communicates with the cloud server to build a LoRaWAN network and enable bidirectional data transmission.

[0010] The location guidance terminal, connected to the LoRaWAN gateway via the LoRaWAN network, is deployed in different functional areas of the warehouse to provide regional-level cargo location guidance.

[0011] Material guidance terminals are installed in each area of ​​the warehouse. Each material guidance terminal includes a main control unit, a LoRa communication module, indicator lights, a buzzer, a power supply module, and physical buttons. It is connected to the LoRaWAN gateway through the LoRaWAN network and deployed at specific storage locations to monitor the status of goods, provide storage location-level audio-visual guidance, and support manual interaction.

[0012] Furthermore, the intelligent warehouse system also includes user terminals, including a planning administrator terminal, a warehouse administrator terminal, and a pickup operator's handheld PDA or mobile phone. The pickup operator's handheld PDA or mobile phone is equipped with a dedicated APP, which is used to input the quantity of goods to be picked up. The data is synchronized to the cloud server in real time to update the inventory.

[0013] Furthermore, the material guidance terminal has multiple physical installation methods, including one of the following: fixing with screws through the mounting holes on the housing, fixing with magnetic attraction through the magnet built into the housing, or fixing with double-sided adhesive.

[0014] Furthermore, the location guidance terminal includes an indicator light, which is a tri-color LED light.

[0015] Furthermore, the power supply module is a button battery.

[0016] Furthermore, the material guidance terminal is also configured to periodically report its battery power information to the cloud server.

[0017] Furthermore, the housing of the material guidance terminal is provided with a QR code or barcode for identification of the material guidance terminal.

[0018] Furthermore, the location guidance terminal also includes temperature and humidity sensors and / or light sensors, used to monitor warehouse environmental parameters in real time and upload them to the cloud server via the LoRaWAN network.

[0019] Another aspect of the present invention provides a low-power operation method for an intelligent warehouse management system based on LoRaWAN wireless communication technology: when performing a retrieval task, the cloud server issues a lighting command, causing the location guidance terminal to issue a reminder, the material guidance terminal to flash its light and trigger a buzzer to sound, guiding the picker through sound and light signals. When picking up goods, the picker inputs the quantity to be picked up through a PDA or a dedicated mobile APP, and the data is synchronized to the cloud server in real time. The system automatically verifies and updates the inventory database to ensure data accuracy and real-time synchronization of inventory status.

[0020] During the above process, the material guidance terminal performs the following steps:

[0021] Sleep mode: Control the main control unit and LoRa communication module to enter a low-power sleep state;

[0022] Periodic wake-up step: Wake up the main control unit and LoRa communication module at preset time intervals;

[0023] Listening steps: Open the receiving window of the LoRa communication module and listen for instructions from the LoRaWAN gateway;

[0024] Judgment and execution steps: If a valid instruction is received in the receiving window, the indicator light and / or buzzer will be controlled to perform the corresponding action and send a confirmation message, and then return to the sleep step; if no valid instruction is received, the process will directly return to the sleep step.

[0025] Furthermore, it is characterized by:

[0026] The audio-visual guidance has three modes for being turned off:

[0027] Manual shutdown mode: The pickup operator triggers shutdown by pressing the physical button on the material guidance terminal;

[0028] Command-based shutdown mode: The cloud server sends a shutdown command after receiving confirmation information from a PDA or mobile phone scan.

[0029] Delayed shutdown mode: The material guidance terminal will automatically shut off after the sound and light guidance has been in effect for a preset period of time.

[0030] The beneficial effects of this invention are:

[0031] 1. This invention utilizes the strong penetration and long transmission distance of LoRaWAN technology, allowing a single gateway to cover an entire large warehouse, effectively solving the problem of insufficient signal coverage of traditional wireless technologies such as Wi-Fi and Bluetooth.

[0032] 2. The material guidance terminal of this invention adopts a unique "sleep-wake-listen" ultra-low power consumption working method, which enables the battery life to reach more than 10 months.

[0033] 3. The material guide of this invention is powered by a button battery and can be installed in various ways such as magnetic attraction and adhesive, enabling rapid and non-destructive deployment in existing warehouses. It truly achieves "one-time investment, long-term maintenance-free" and significantly reduces the overall cost of ownership.

[0034] 4. This invention utilizes a two-tiered audio-visual navigation system combining "location guidance" and "material guidance" to provide picking personnel with intuitive and precise guidance from the designated area to the storage location, reducing manual search time from minutes to seconds and significantly improving picking efficiency. Simultaneously, by integrating PDA / APP barcode scanning confirmation with real-time data synchronization, it ensures that every operation is recorded by the system, achieving dynamic and accurate updates of inventory information. This fundamentally solves long-standing management pain points in traditional warehouses, such as discrepancies between records and actual inventory and incorrect shipments. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of an intelligent warehouse system based on LoRaWAN wireless communication technology according to the present invention;

[0036] Figure 2 This is a system block diagram of an intelligent warehouse system based on LoRaWAN wireless communication technology according to the present invention;

[0037] Figure 3 This is a system block diagram of the material guidance terminal described in this invention;

[0038] Figure 4 This is a front view of the housing of the material guidance terminal described in this invention;

[0039] Figure 5 This is a schematic diagram of the back of the housing of the material guidance terminal described in this invention;

[0040] Figure 6 This is a flowchart illustrating the workflow of the material guidance terminal described in this invention.

[0041] In the diagram: 1. Cloud server; 2. LoRaWAN gateway; 3. Location guidance terminal; 4. Material guidance terminal; 401. Main control unit; 402. LoRa communication module; 403. Indicator light; 404. Buzzer; 405. Power supply module; 406. Physical button; 5. PDA. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1-5 As shown, an intelligent warehouse system based on LoRaWAN wireless communication technology includes: a cloud server 1, used for data storage, processing, analysis and instruction generation;

[0044] LoRaWAN gateway 2 is communicatively connected to cloud server 1 and is used to build a LoRaWAN network to achieve bidirectional data transmission.

[0045] Location guidance terminal 3 is connected to the LoRaWAN gateway 2 via the LoRaWAN network and is deployed in different functional areas of the warehouse to provide regional-level cargo location guidance.

[0046] Material guidance terminal 4: Several material guidance terminals 4 are set up in each area of ​​the warehouse. Each material guidance terminal 4 includes a main control unit 401, a LoRa communication module 402, an indicator light 403, a buzzer 404, a power supply module 405, and a physical button 406. It is connected to the LoRaWAN gateway 2 through the LoRaWAN network and deployed in specific storage locations to monitor the status of goods, provide storage location-level audio and visual guidance, and support manual interaction.

[0047] During operation, cloud server 1 generates operation commands, which are broadcast to the corresponding location guidance terminal 3 and material guidance terminal 4 via LoRaWAN gateway 2. Location guidance terminal 3 provides visual guidance for the area, while material guidance terminal 4 accurately locates specific goods locations using audio-visual signals. After the pickup operator interacts, status information is transmitted back to cloud server 1 via the gateway, updating inventory in real time. This constructs a complete "cloud-pipe-edge-device" IoT architecture, utilizing LoRaWAN to achieve wide-area, low-power wireless coverage within the warehouse. This solves the problems of difficult traditional wired deployments and insufficient coverage of wireless technologies such as Wi-Fi and Bluetooth, providing fundamental communication support for intelligent warehouse management. The LoRaWAN gateway 2 has a coverage radius of over 1 kilometer in complex environments such as densely built-up urban areas or industrial plants, with low signal penetration loss through walls and metal obstacles, eliminating the need for dense relay equipment. Communication between devices does not require 4G or 5G networks, enabling a one-time investment for lifetime use.

[0048] In practical applications, the intelligent warehouse system also includes user terminals, including a planning administrator terminal, a warehouse administrator terminal, and a pickup operator's handheld PDA or mobile phone. The pickup operator's handheld PDA or mobile phone is equipped with a dedicated APP for inputting the quantity of goods to be picked. This data is synchronized in real-time to the cloud server 1 to update the inventory. In this solution, after completing the picking operation, the pickup operator immediately inputs the actual quantity of goods picked via the PDA or mobile APP. This data is sent to the cloud server 1 in real-time via Wi-Fi or mobile network, and the server automatically verifies and updates the central inventory database. This achieves closed-loop management, ensuring the real-time nature and accuracy of inventory data updates through the mobile terminal APP. It fundamentally solves the problems of discrepancies between records and actual inventory and information lag caused by traditional manual recording, significantly improving the accuracy and efficiency of inventory management.

[0049] In practical applications, the material guidance terminal 4 offers multiple physical installation methods, including: screw fixing via mounting holes on the housing, magnetic fixing via built-in magnets, or adhesive fixing via double-sided tape. During deployment, the most suitable installation method is selected based on the shelf material. For example, direct magnetic fixing on metal shelves, screw fixing on wooden shelves, and high-strength double-sided tape for surfaces where drilling is inconvenient. This provides extremely high deployment flexibility, enabling the system to quickly adapt to various environments in existing warehouses without requiring modifications to warehouse infrastructure, significantly reducing the complexity and cost of system deployment, making it particularly suitable for the intelligent upgrading and transformation of older warehouses.

[0050] In practical applications, the location guidance terminal 3 includes an indicator light 403, which is a tri-color LED. Using color coding to intuitively convey complex status information provides richer visual cues than single-color lights.

[0051] In practical applications, the power supply module 405 is a button battery. The button battery provides power to the entire material guidance terminal 4. Due to its small size, it helps to achieve a miniaturized and lightweight design of the terminal device, and can be flexibly installed on shelves with limited space. At the same time, combined with the low power consumption design, even using a relatively small-capacity button battery can achieve a long service life, balancing the device size and battery life.

[0052] In practical applications, the material guidance terminal 4 is also configured to periodically report its battery level information to the cloud server 1. The firmware of the material guidance terminal 4 sets the battery level reporting cycle, such as every 24 hours. At the predetermined time, the terminal measures the current battery voltage or level and sends the battery data packet to the cloud server 1 via the LoRaWAN network. System administrators can remotely monitor the battery health status of each terminal, plan battery replacement schedules in advance, and avoid terminal disconnection due to sudden battery depletion, thereby affecting normal warehouse operations and improving system reliability and maintainability.

[0053] In practical applications, the material guidance terminal 4 has a QR code or barcode on its casing for identification. Each material guidance terminal 4 is assigned a unique identifier at the time of manufacture or deployment, and a corresponding QR code or barcode is generated and affixed to the casing. After scanning the code with a PDA5, the administrator or system can quickly obtain the terminal ID and complete the binding, location, or maintenance record of the device with the system backend.

[0054] In practical applications, the location guidance terminal 3 also includes temperature and humidity sensors and / or light sensors for real-time monitoring of warehouse environmental parameters and uploading data to the cloud server 1 via the LoRaWAN network. In addition to location guidance, environmental monitoring functionality is added, making it particularly suitable for scenarios with special requirements for the storage environment (such as warehouses for electronic components, food, and pharmaceuticals). This provides data support for quality assurance and energy-saving control (such as intelligent lighting and air conditioning), expanding the system's application value.

[0055] Another aspect of the present invention provides a low-power operation method for an intelligent warehouse management system based on LoRaWAN wireless communication technology: when performing a retrieval task, the cloud server 1 issues a lighting command, causing the location guidance terminal 3 to issue a reminder, the material guidance terminal 4 to flash its light and trigger the buzzer 404 to sound, guiding the picker through sound and light signals. When picking up goods, the picker inputs the quantity to be picked up through PDA5 or a dedicated mobile APP, and the data is synchronized to the cloud server 1 in real time. The system automatically verifies and updates the inventory database to ensure data accuracy and real-time synchronization of inventory status.

[0056] During the above process, the material guidance terminal 4 performs the following steps:

[0057] Sleep mode: Control the main control unit 401 and LoRa communication module 402 to enter a low-power sleep state;

[0058] Periodic wake-up step: Wake up the main control unit 401 and LoRa communication module 402 at preset time intervals;

[0059] Listening steps: Open the receiving window of the LoRa communication module 402 and listen for instructions from the LoRaWAN gateway 2;

[0060] Judgment and execution steps: If a valid instruction is received in the receiving window, the indicator light 403 and / or the buzzer 404 are controlled to perform the corresponding action and send a confirmation message, and then return to the sleep step; if no valid instruction is received, the process directly returns to the sleep step.

[0061] The core of this method is the "intermittent operation" mechanism. The terminal spends over 99% of its time in a very low-power sleep mode, only periodically waking up briefly to open a wireless receiving window and listen for network commands, for example, waking up every 8 seconds and opening the wireless receiving window for 100 milliseconds. Once the task is completed, it quickly returns to sleep mode. This is the core technology for achieving ultra-long battery life. Through extreme dynamic power management, the average operating current is reduced to the microamp level, allowing the terminal to operate continuously for months or even years using a high-capacity battery, significantly reducing maintenance frequency and battery replacement costs, and solving the power consumption problem.

[0062] In practical applications, its characteristics are:

[0063] The audio-visual guidance has three modes for being turned off:

[0064] Manual shutdown mode: The pickup operator triggers shutdown by pressing the physical button 406 on the material guidance terminal 4;

[0065] Command-based shutdown mode: The cloud server 1 sends a shutdown command after receiving confirmation information from the PDA5 or mobile phone scan.

[0066] Delayed shutdown mode: The material guidance terminal 4 will automatically shut down after the sound and light guidance has been in effect for a preset period of time.

[0067] This solution provides multiple, reliable termination mechanisms to ensure smooth operation and energy efficiency. Manual mode offers rapid response, command mode boasts high integration and automation, and delay mode provides fault-tolerant protection. This design enhances system robustness and user experience, preventing energy waste and equipment malfunctions.

[0068] Based on the above, a smart warehouse retrieval and outbound process based on LoRaWAN is provided. For example, cloud server 1 receives an outbound instruction from the enterprise ERP system, requesting the retrieval of 50 electronic components of a certain model from warehouse B, location 05.

[0069] 1. Command Issuance and Terminal Wake-up: Cloud server 1 generates a data packet containing the target location (Area B, Storage Location 05) and the command content (audio-visual guidance), and sends it to LoRaWAN gateway 2 deployed in the center of the warehouse via Ethernet / 4G network. The gateway then broadcasts the command through the LoRaWAN wireless network.

[0070] At this time, as Figure 6 As shown, the material guidance terminal 4 is in its unique low-power operating state: its STM32L0 main control unit 401 and LoRa communication module 402 are in deep sleep mode for more than 99% of the time. Every 8 seconds, the terminal is woken up by an internal timer and opens a receive window of about 100 milliseconds to listen for gateway calls.

[0071] Location guidance terminal 3 in area B and material guidance terminal 4 at location 05 recognize their respective instructions in their receiving windows and are then activated.

[0072] 2. Multi-level audio-visual guidance: The activated terminal executes the command.

[0073] The tri-color LED light strip on the location guidance terminal 3 lights up green, providing the pickup staff with macro-level area guidance so that they can quickly locate area B.

[0074] At the same time, the LED indicator 403 of the material guidance terminal 4 at location 05 begins to flash red, and the buzzer 404 emits a "beep beep" alert sound. This precise audio-visual signal at the location level guides the picker to quickly find the exact target among the dense shelves.

[0075] 3. Human-computer interaction and guided closure: After the pickup operator arrives at location 05, a confirmation operation is performed. The system provides three flexible closure modes:

[0076] Manual shutdown mode: The pickup operator can directly press the physical button 406 on the terminal to immediately stop the lights and sounds.

[0077] Command-off mode: The pickup operator uses a handheld PDA5 to scan the barcode on the goods. The PDA5 sends the "picked" information to the cloud server 1 via Wi-Fi, and the server then sends a "close" command to the terminal.

[0078] Delayed shutdown mode: If the pickup operator does not perform any operation, the terminal's built-in timer will automatically turn off the indicator light 403 and buzzer 404 after 60 seconds of continuous audio-visual guidance to avoid power waste.

[0079] Regardless of the method, the terminal will send an acknowledgment message after completing the task, and then quickly return to a low-power sleep state.

[0080] 4. Real-time inventory updates: The pickup operator enters the actual quantity "50" to be retrieved through the dedicated APP interface on the PDA5. This data is synchronized to cloud server 1 in real time via warehouse Wi-Fi. After the server verifies that there are no errors, it automatically subtracts 50 from the inventory quantity in storage location 05, ensuring that the inventory information in the database is always consistent with the physical inventory.

[0081] The design uses an STM32L0 series microcontroller as the main controller, with a power consumption of only 76μA / MHz in operating mode and as low as 0.3μA in sleep mode.

[0082] During an 8-second sleep period, the LoRa node consumes 11μA of current, and the microcontroller consumes 0.58μA. The microcontroller receives and processes data from the LoRa node. Upon waking, when receiving signals, the LoRa node consumes 7.6mA of current, and the microcontroller consumes 0.26mA. If correct information is received, the light illuminates and an acknowledgment message is sent. When sending information, the LoRa node consumes 70mA of current, the microcontroller consumes 0.15mA, and the LED consumes 20mA. The node reports its battery level daily, reminding the warehouse manager to replace the battery in a timely manner. Calculations show an average current consumption of 88μA, and a 700mAh battery can last for more than 10 months, meeting low power consumption requirements and reducing the burden on the wireless communication battery. The battery installation structure is also optimized for quick replacement.

[0083] This embodiment achieves low-power, high-penetration coverage across the entire warehouse using LoRaWAN, solving deployment challenges; it greatly improves picking efficiency and accuracy through multi-level audio-visual guidance based on "area + location" and various confirmation methods; and it enables precise inventory management through real-time data synchronization.

[0084] In summary, the intelligent warehouse system and its low-power operation method based on LoRaWAN wireless communication technology described in this invention achieve low-power, high-penetration coverage across the entire warehouse through LoRaWAN, solving the deployment challenge; through multi-level audio-visual guidance based on "area + location" and multiple confirmation methods, it greatly improves picking efficiency and accuracy; and through real-time data synchronization, it achieves precise inventory management.

[0085] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments are merely illustrative of the technical concept and characteristics of the present invention, intended to enable those skilled in the art to understand and implement the invention, and should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A smart warehouse system based on LoRaWAN wireless communication technology, characterized in that: include: Cloud server (1) is used for data storage, processing, analysis and instruction generation; The LoRaWAN gateway (2) is connected to the cloud server (1) to build a LoRaWAN network and realize bidirectional data transmission. The location guidance terminal (3) is connected to the LoRaWAN gateway (2) via the LoRaWAN network and is deployed in different functional areas of the warehouse to provide regional cargo location guidance. Material guidance terminal (4): Each area of ​​the warehouse is equipped with several material guidance terminals (4). The material guidance terminal (4) includes a main control unit (401), a LoRa communication module (402), an indicator light (403), a buzzer (404), a power supply module (405), and a physical button (406). It is connected to the LoRaWAN gateway (2) through the LoRaWAN network and deployed in specific storage locations to monitor the status of goods, provide storage location-level audio-visual guidance, and support manual interaction.

2. The intelligent warehouse system based on LoRaWAN wireless communication technology according to claim 1, characterized in that: The intelligent warehouse system also includes user terminals, including a planning administrator terminal, a warehouse administrator terminal, and a pickup operator's handheld PDA (5) or mobile phone. The pickup operator's handheld PDA (5) or mobile phone is equipped with a dedicated APP, which is used to input the quantity of goods to be picked up. The data is synchronized to the cloud server (1) in real time to update the inventory.

3. The intelligent warehouse system based on LoRaWAN wireless communication technology according to claim 1, characterized in that: The material guidance terminal (4) has multiple physical installation methods, including one of the following: fixing with screws through the mounting holes on the housing, fixing with magnetic attraction through the magnet built into the housing, or fixing with double-sided adhesive.

4. The intelligent warehouse system based on LoRaWAN wireless communication technology according to claim 1, characterized in that: The location guidance terminal (3) includes an indicator light (403), which is a tri-color LED light.

5. The intelligent warehouse system based on LoRaWAN wireless communication technology according to claim 1, characterized in that: The power supply module (405) is a button battery.

6. The intelligent warehouse system based on LoRaWAN wireless communication technology according to claim 1, characterized in that: The material guidance terminal (4) is also configured to periodically report its battery power information to the cloud server (1).

7. The intelligent warehouse system based on LoRaWAN wireless communication technology according to claim 1, characterized in that: The material guidance terminal (4) has a QR code or barcode on its casing for identification.

8. The intelligent warehouse system based on LoRaWAN wireless communication technology according to claim 1, characterized in that: The location guidance terminal (3) also includes a temperature and humidity sensor and / or a light sensor, used to monitor warehouse environmental parameters in real time and upload them to the cloud server (1) via the LoRaWAN network.

9. A method for operating an intelligent warehouse management system based on the LoRaWAN wireless communication technology according to any one of claims 1-8, characterized in that: When performing the item retrieval task, the cloud server (1) issues a lighting command, causing the location guidance terminal (3) to issue a reminder, the material guidance terminal (4) to flash its light and trigger the buzzer (404) to sound, guiding the picker through sound and light signals. When picking up the goods, the picker enters the quantity to be picked up through the PDA (5) or a dedicated mobile APP. The data is synchronized to the cloud server (1) in real time. The system automatically verifies and updates the inventory database to ensure data accuracy and real-time synchronization of inventory status. In the above process, the material guidance terminal (4) performs the following steps: Sleep mode: Control the main control unit (401) and LoRa communication module (402) to enter a low-power sleep state; Periodic wake-up step: Wake up the main control unit (401) and LoRa communication module (402) at preset time intervals. Listening steps: Open the receiving window of the LoRa communication module (402) and listen for instructions from the LoRaWAN gateway (2); Judgment and execution steps: If a valid instruction is received in the receiving window, the indicator light (403) and / or the buzzer (404) are controlled to perform the corresponding action and a confirmation message is sent, and then the process returns to the sleep step; if no valid instruction is received, the process returns directly to the sleep step.

10. The working method of an intelligent warehouse management system based on LoRaWAN wireless communication technology according to claim 8, characterized in that: The audio-visual guidance has three off modes: Manual shutdown mode: The pickup operator triggers shutdown by pressing the physical button (406) on the material guidance terminal (4); Command-based shutdown mode: The cloud server (1) sends a shutdown command after receiving confirmation information from the PDA (5) or mobile phone scan; Delayed shutdown mode: The material guidance terminal (4) will automatically shut down after the sound and light guidance has been in effect for a preset period of time.

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