Warehouse management system applying infrared light curtain monitoring

Abstract

The invention provides a warehouse management system applying infrared light curtain monitoring, and relates to the technical field of warehouse management. The goods shelf is provided with a plurality of goods positions for placing goods; the infrared light curtain sensor group is crosswise arranged at a goods allocation and sends a signal to the controller to monitor the state change of goods in real time; the controller receives the signals and judges the goods location state and whether the goods are shifted or not. The monitor is connected with the controller and displays real-time pictures of the goods shelf. According to the scheme, all-around real-time monitoring of stored goods is achieved, the management accuracy and efficiency are improved, abnormal conditions can be found in time, storage safety is guaranteed, visual monitoring pictures are provided for managers, and measures can be conveniently taken in time for management and adjustment.

Description

Technical Field

[0001] The present application relates to the technical field of warehouse management, and in particular to a warehouse management system using infrared light curtain monitoring. Background Art

[0002] With the rapid development of modern logistics, higher requirements are placed on the informatization and automation of warehouse management. It is necessary to monitor the flow of goods in real time and improve the efficiency of warehouse operations.

[0003] Existing technologies rely on regular manual inspections or video surveillance to ensure the safety of goods. Specifically, warehouse managers use the system-generated cargo inspection checklist to regularly check and record each cargo location. Managers use the warehouse management system on mobile terminals to scan cargo location labels and manually enter cargo location status and cargo information. Managers take photos or record videos and save cargo location status as inspection results.

[0004] However, these methods are slow, can only perform sampling inspections, and have problems such as low efficiency and lack of real-time performance, making it difficult to monitor the status changes of goods in a comprehensive and real-time manner. Summary of the invention

[0005] The present application provides a warehouse management system using infrared light curtain monitoring, which is used to monitor the status changes of stored goods in real time and accurately, thereby improving the efficiency and safety of warehouse management.

[0006] In a first aspect, the present application provides a warehouse management system that uses infrared light curtain monitoring, and the warehouse management system that uses infrared light curtain monitoring includes: a shelf, which is provided with multiple cargo spaces for placing goods; an infrared light curtain sensor group, which is arranged in each cargo space in the shelf, and the infrared light curtain sensor group uses a cross-layout method to send a signal to a controller to monitor the status changes of goods in each cargo space in real time; a controller, which is communicatively connected to the infrared light curtain sensor group, is used to receive the signal of the infrared light curtain sensor group, and determines the cargo space status and whether the goods are in a row based on the sensor signal; a monitor, which is communicatively connected to the controller, is used to display a real-time picture of the shelf.

[0007] By adopting the above technical solution, real-time monitoring of stored goods is realized. The infrared light curtain sensor group adopts a cross layout method, which can monitor the state changes of goods in the cargo space in an all-round way, and can timely discover abnormal conditions of goods, thereby improving the efficiency and safety of warehouse management.

[0008] In combination with some embodiments of the first aspect, in some embodiments, the controller has a built-in data analysis module, and the data analysis module is used to perform in-depth analysis on the received sensor signal to identify and warn of abnormal conditions, which include abnormal cargo location status and cargo cross-location.

[0009] By adopting the above technical solutions, the data analysis module can identify and warn of abnormal conditions, including abnormal storage conditions and cargo mixing. This enables managers to take timely measures to avoid losses caused by abnormal conditions.

[0010] In combination with some embodiments of the first aspect, in some embodiments, the infrared light curtain sensor group is composed of a plurality of infrared transmitters and receivers, the plurality of infrared transmitters are used to emit infrared light networks, and the receiver is used to receive the infrared light networks.

[0011] By adopting the above technical solution, the status changes of goods can be detected quickly and accurately, improving the real-time and accuracy of warehouse management.

[0012] In combination with some embodiments of the first aspect, in some embodiments, multiple cameras are further included, which are communicatively connected to the controller and are used to monitor the status of the cargo locations and cargo on the shelves in real time and send them to the monitor.

[0013] By adopting the above technical solution, managers can visually view the actual situation of goods through the monitor, and cooperate with the infrared light curtain sensor group to further improve the accuracy and reliability of warehouse management.

[0014] In combination with some embodiments of the first aspect, in some embodiments, the monitor also includes an abnormal alarm module, which is used to analyze and identify the real-time images sent by the camera. After determining the cargo type information, if it is detected that the cargo type information does not match the preset standard storage cargo type, it is determined that there is cargo concatenation in the target cargo location, and a cargo concatenation warning is sent to the monitor; if it is detected that the target cargo location status is abnormal, an abnormal cargo location status warning is sent to the monitor.

[0015] By adopting the above technical solution, problems such as cargo mixing and abnormal cargo status can be discovered in a timely manner, thereby improving the efficiency and safety of warehouse management.

[0016] In combination with some embodiments of the first aspect, in some embodiments, a prohibited item alarm module is further included, which is used to issue an alarm message. The prohibited item alarm module is communicatively connected to the controller, and the controller is also used to determine whether there are preset prohibited items stored in the cargo position based on the cargo situation. If so, a prohibited item alarm is sent to the monitor.

[0017] By adopting the above technical solution, prohibited items can be effectively prevented from entering the storage area, ensuring storage safety.

[0018] In combination with some embodiments of the first aspect, in some embodiments, after determining the existence of the prohibited item, the controller controls the camera in the corresponding area to obtain an image of the prohibited item, determines the type of the prohibited item through image recognition technology, generates a prohibited item report including the type, quantity and location of the prohibited item, and sends the prohibited item report to the monitor.

[0019] By adopting the above technical solution, after determining the prohibited items, the controller controls the camera to obtain images and identify them, generates a prohibited items report and sends it to the monitor, so that the management personnel can handle it in time.

[0020] In combination with some embodiments of the first aspect, in some embodiments, the controller combines the detection results of the infrared light curtain sensor group, analyzes and obtains the quantity of goods in each cargo location, and sends the quantity of goods to the storage module for storage. The controller is also used to compare the quantity of goods with the standard storage quantity of the cargo location stored in the database to determine whether the inventory is sufficient. If not, a stock-out warning prompt is sent to the monitor.

[0021] By adopting the above technical solution, if the inventory is insufficient, an out-of-stock warning will be sent. This function utilizes the real-time monitoring capability of the infrared light curtain sensor group and the data analysis function of the controller to remind management personnel to replenish goods in time to avoid production or sales being affected by out-of-stock.

[0022] In combination with some embodiments of the first aspect, in some embodiments, a weight sensor is further included, which is arranged under each cargo location, and is used to measure the weight of the cargo in the target cargo location and send the cargo weight to the controller; the controller is also used to determine whether the target cargo location is an abnormal cargo location based on the cargo weight. If it is an abnormal cargo location, the target cargo location and the corresponding cargo weight are sent to the monitor.

[0023] By adopting the above technical solution, the weight sensor and the infrared light curtain sensor group cooperate with each other to more comprehensively monitor the status of the cargo position and detect abnormal situations in time.

[0024] In combination with some embodiments of the first aspect, in some embodiments, after the controller determines the cargo movement information according to the infrared light curtain sensor group, if it is detected that the cargo has not moved within a set time period, a long-term accumulation of cargo prompt information is sent to the monitor.

[0025] By adopting the above technical solutions, managers can be reminded to deal with long-pile goods in a timely manner to avoid expiration without being discovered, optimize the use of storage space, and improve the efficiency of warehouse management.

[0026] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. The use of infrared light curtain sensors to monitor each cargo position in real time, intelligent analysis and judgment by controllers, and display by monitors effectively solves the technical problem of low efficiency of manual inspections and realizes the automatic monitoring and early warning functions of storage status.

[0027] 2. Thanks to the technical means of video surveillance and image analysis, abnormalities of goods such as cross-location can be automatically identified, which effectively solves the problem of low efficiency of video surveillance relying on manual inspection and realizes the automatic early warning function of abnormal goods.

[0028] 3. Due to the addition of technical means of prohibited items detection and alarm, the potential safety hazard of prohibited items entering the warehouse can be effectively solved, achieving the effect of avoiding safety accidents from the source. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a module connection diagram of an embodiment of the present application; Figure 2 This is another module connection diagram of an embodiment of the present application.

[0030] Description of reference numerals: 1. Shelf; 2. Infrared light curtain sensor group; 3. Controller; 4. Monitor; 5. Data analysis module; 6. Infrared transmitter; 7. Receiver; 8. Camera; 9. Abnormal alarm module; 10. Prohibited items alarm module; 11. Weight sensor. DETAILED DESCRIPTION

[0031] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to and includes any or all possible combinations of one or more listed items.

[0032] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0033] The present application embodiment provides a warehouse management system using infrared light curtain monitoring, such as Figure 1 As shown, Figure 1 It is a module connection diagram of an embodiment of the present application, including: Shelf 1 is provided with multiple cargo spaces for placing cargo; An infrared light curtain sensor group 2 is arranged at each cargo position in the shelf 1. The infrared light curtain sensor group 2 uses a cross layout to send a signal to the controller 3 to monitor the status change of the cargo in each cargo position in real time; The controller 3 is connected to the infrared light curtain sensor group 2 for receiving the signal of the infrared light curtain sensor group 2 and judging the state of the cargo position and whether the cargo is in a stacked position according to the sensor signal; The monitor 4 is connected to the controller 3 for displaying the real-time image of the shelf 1 .

[0034] Specifically, a plurality of cargo spaces are arranged in the shelf 1 for storing goods of different types and batches. The infrared light curtain sensor group 2 adopts a cross layout to install a plurality of infrared transmitters 6 and receivers 7 at different positions of the cargo space, so that infrared light forms a cross monitoring network in the cargo space. An infrared transmitter 6 and a receiver 7 can be installed at the four corners of the cargo space or other locations respectively, so that infrared light can irradiate the goods in the cargo space from different directions. When the goods enter or leave the cargo space, part of the infrared light will be blocked, thereby causing the light signal received by the receiver 7 to change. At this time, the infrared light curtain sensor group 2 will immediately send a signal to the controller 3 to monitor the state changes of the goods in each cargo space in real time. In addition, it is also possible to determine whether the goods are in a cross-location by the following method: In the warehouse management system, each cargo space is preset with specific cargo shape information. This preset information is determined based on the storage plan of the warehouse and the types, sizes and other characteristics of the goods. When the goods are placed on the cargo space, the infrared light curtain sensor group 2 on the cargo space starts to work. The infrared light curtain sensor group 2 forms a monitoring network for the goods in the cargo space by emitting and receiving infrared light. The approximate shape of the goods is analyzed based on the reflection and occlusion of the received infrared light. If the controller 3 receives the goods-related signal sent by the infrared light curtain sensor group 2 and detects that the shape of the goods on the cargo space does not match the preset shape of the goods, it will determine that the goods should not be on the cargo space, thereby judging that a cross-location has occurred.

[0035] In practical applications, the monitor 4 is usually a device such as a liquid crystal display or a touch screen, and the monitor 4 can display the status of each cargo position on the shelf 1 in real time, including whether there are goods, the quantity of goods, the location of goods, etc. The manager can intuitively understand the storage situation through the monitor 4 and take corresponding measures to deal with it in time. In addition, the monitor 4 can also provide some operation interfaces to facilitate the manager to set up and manage the warehouse management system.

[0036] In the above embodiment, the shelf 1 provides a cargo storage space, and the infrared light curtain sensor group 2 monitors the state changes and shapes of the cargo in the cargo space in real time through a cross layout, and determines whether the cargo is in a cross position in combination with the preset cargo shape information. The controller 3 receives the sensor signal for analysis and processing, issues an alarm in time, and communicates with the monitor 4 and other devices. The monitor 4 displays the cargo space status information in real time in the form of an LCD screen or a touch screen and provides an operation interface. The system improves the accuracy, reliability, intelligence level and management efficiency of warehouse management, and ensures safe and orderly storage of cargo.

[0037] For ease of understanding, the following is a further module description of the system provided by this implementation in combination with the above content. Figure 2 , Figure 2 This is another module connection diagram of an embodiment of the present application.

[0038] exist Figure 2 In the warehouse management system using infrared light curtain monitoring, the controller 3 has a built-in data analysis module 5, which is used to deeply analyze the received sensor signal to identify and warn of abnormal conditions, including abnormal storage space status and cargo cross-location. Specifically, in the data collection stage, the infrared light curtain sensor group 2 will send the real-time monitored cargo status change signal in the storage space to the controller 3. These signals contain rich information, such as changes in the intensity of infrared light, blocking time, and change trends. The data analysis module 5 will pre-process these signals, including data cleaning, denoising, normalization and other operations to improve the quality and reliability of the data. Next, the data analysis module 5 will use a specific feature extraction method to extract key features from the pre-processed signal. These features can reflect the storage space status and various attributes of the goods, such as the location, quantity, shape, and motion status of the goods. The identification of abnormal cargo space status can be done in the following ways: Detect the change in the quantity of goods in the cargo space. If the quantity of goods in the cargo space suddenly increases or decreases within a period of time, exceeding the normal fluctuation range, it may mean that there is an abnormality in the cargo space, such as the loss, theft, or wrong storage of goods. Detect the change in the location of the goods. If the location of the goods is significantly offset or does not match the preset cargo space, it may also indicate that the cargo space status is abnormal. The identification of cargo cross-location can be done in the following ways: The data analysis module 5 will compare the shape of the goods detected by the infrared light curtain sensor group 2 with the preset shape information. If the two do not match, it can be determined that the goods have been cross-located. In the above manner, the data analysis module 5 built into the controller 3 can accurately identify abnormal cargo space status and cargo cross-location by deeply analyzing the received sensor signals. This function improves the accuracy, standardization and intelligence level of warehouse management, and helps to improve the warehouse management efficiency and operational benefits of the enterprise.

[0039] In some embodiments, the infrared light curtain sensor group 2 in the warehouse management system using infrared light curtain monitoring is composed of a plurality of infrared transmitters 6 and receivers 7, wherein the plurality of infrared transmitters 6 are used to emit infrared light networks, and the receiver 7 is used to receive the infrared light networks. Specifically, the infrared transmitter 6 usually adopts advanced infrared light emitting diode technology, which can stably emit infrared light of a specific wavelength. These infrared lights have strong penetrating power and anti-interference ability, and can be effectively propagated in a complex storage environment. In order to form a dense infrared light network, a plurality of infrared transmitters 6 can be arranged at different positions of the cargo space. The receiver 7 is responsible for receiving the infrared light emitted by the infrared transmitter 6, and the position and number of the receiver 7 correspond to the infrared transmitter 6, so that the infrared light can be received after being blocked by the cargo. When the cargo enters or leaves the cargo space, part of the infrared light will be blocked, resulting in a change in the intensity of the light signal received by the receiver 7. The receiver 7 will convert the received light signal into an electrical signal, and perform amplification, filtering and other processing to improve the quality and stability of the signal. Then, the processed signal is sent to the controller 3 for analysis and processing. Through the coordinated work of multiple infrared transmitters 6 and receivers 7, high-precision, real-time and reliable monitoring of the status of stored goods is achieved, realizing more intelligent warehouse management.

[0040] In some embodiments, the warehouse management system using infrared light curtain monitoring also includes a plurality of cameras 8, which are connected to the controller 3 for real-time monitoring of the state of the cargo space and the cargo situation on the shelf 1 and sending them to the monitor 4. Specifically, the main function of the camera 8 is to monitor the state of the cargo space and the cargo situation on the shelf 1 in real time. In practical applications, the camera 8 is installed at different positions and angles so as to fully cover all areas of the shelf 1. The camera 8 can clearly capture the details of the cargo on the cargo space, including the quantity, shape, color, packaging and other information of the cargo. At the same time, the camera 8 can also monitor the state of the cargo space, such as whether it is vacant or damaged. When the camera 8 captures the state of the cargo space and the cargo situation on the shelf 1, the image data will be sent to the monitor 4. After the monitor 4 receives the image data sent by the camera 8, it will display it for the management personnel to view. The management personnel can intuitively understand the actual situation of the warehouse through the monitor 4, find problems in time and take corresponding measures.

[0041] In some embodiments, the monitor 4 in the warehouse management system using infrared light curtain monitoring also includes an abnormal alarm module 9, which is used to analyze and identify the real-time picture sent by the camera 8. After determining the type of goods information, if it is detected that the type of goods information does not match the preset standard storage type of goods, it is determined that there is a cross-location of goods in the target cargo position, and a warning of the cross-location of goods is sent to the monitor 4; if the state of the target cargo position is detected to be abnormal, an abnormal warning of the cargo position state is sent to the monitor 4. Specifically, the abnormal alarm module 9 uses a deep learning algorithm to train a large number of images of different types of goods in advance so that the characteristics of various goods, such as shape, color, texture, etc., can be accurately identified. When the camera 8 captures the cargo picture on the shelf 1 in real time, the abnormal alarm module 9 will quickly process the image, extract the characteristics of the goods, and compare it with the stored cargo feature database to determine the type of goods. The abnormal alarm module 9 will compare it with the preset standard storage cargo type. The preset standard storage cargo type is set in advance according to the planning and requirements of warehouse management. If it is detected that the cargo type information does not match the preset standard storage cargo type, the abnormal alarm module 9 will determine that there is a cargo cross-location situation in the target cargo location. At this time, the abnormal alarm module 9 will send a cargo cross-location warning to the monitor 4. The warning method can be to display a striking prompt message on the monitor 4, such as red flashing text or icon, and at the same time, a sound alarm can be issued so that the management personnel can notice it in time and take corresponding measures. By analyzing and identifying the real-time images sent by the camera 8, it is possible to timely detect cargo cross-location and abnormal cargo location status, and send a warning to the monitor 4, providing effective protection for warehouse management.

[0042] In some embodiments, the warehouse management system using infrared light curtain monitoring also includes a prohibited item alarm module 10 for issuing an alarm message. The prohibited item alarm module 10 is connected to the controller 3 in communication. The controller 3 is also used to determine whether there are preset prohibited items stored in the cargo position according to the cargo situation. If there are, a prohibited item alarm is sent to the monitor 4. Specifically, the controller 3 receives the video stream or image information captured by the camera 8, analyzes and processes it, identifies the characteristics of the cargo on the target cargo position, and compares the characteristics of the cargo with the preset prohibited item characteristics. If the similarity between the two is close to the preset threshold, the cargo is determined to be a prohibited item. If it is identified as a prohibited item, the prohibited item alarm module 10 is controlled to send a prohibited item alarm signal to the monitor 4. After receiving the prohibited item alarm signal, the monitor 4 will prompt the management personnel in an intuitive manner, such as popping up a warning window to display the relevant information of the prohibited items. In this way, the management personnel can be prompted with the prohibited item information in an intuitive manner, providing a basis for optimizing management.

[0043] In some embodiments, after determining that the prohibited items exist, the controller 3 in the warehouse management system using infrared light curtain monitoring controls the camera 8 in the corresponding area to obtain the image of the prohibited items, and determines the type of the prohibited items through image recognition technology, generates a prohibited item report containing the type, quantity and location of the prohibited items, and sends the prohibited item report to the monitor 4. Specifically, when the controller 3 determines that the prohibited items exist, it will send a control signal to the camera 8 in the corresponding area according to the pre-set instructions and procedures. This control signal contains the location information of the target cargo position and the relevant parameters for obtaining the image, such as the shooting angle, resolution and other requirements. After receiving the control signal, the camera 8 will adjust its own shooting parameters, shoot the area where the prohibited items are located, and obtain a clear image. Then, the camera 8 transmits the acquired image data back to the controller 3. After receiving the image data, the controller 3 starts the image recognition technology module. The module first pre-processes the image, including image noise reduction, contrast enhancement and other operations to improve the quality and recognizability of the image. Then, the image recognition technology module extracts the feature information of the image. This feature information may include the shape, color, texture, pattern and the like of the object. The types of prohibited items are determined by comparing and matching with the prohibited item feature templates pre-stored in the database. While determining the types of prohibited items, the controller 3 will also determine the quantity and location of the prohibited items in combination with other relevant information. For the determination of quantity, if the prohibited items are items with regular shapes and known sizes, the controller 3 can calculate the number of items in the image through image analysis, and estimate the actual number of prohibited items in combination with the spatial dimensions of the cargo space and known placement rules. The location information is determined by the shooting angle of the camera 8 and the cargo space numbering system of the shelf 1. The controller 3 will combine the viewing angle of the camera 8 with the layout information of the shelf 1 to accurately determine the cargo space location where the prohibited items are located. Finally, the controller 3 organizes and packages the prohibited item report containing the types, quantities and locations of the prohibited items in a specific format and sends it to the monitor 4 through the communication link. After receiving the report, the monitor 4 can display the relevant information on the screen so that the management personnel can intuitively understand the details of the prohibited items and take corresponding measures to deal with them in a timely manner.

[0044] In some embodiments, the controller 3 in the warehouse management system using infrared light curtain monitoring combines the detection results of the infrared light curtain sensor group 2 to analyze and obtain the quantity of goods in each cargo space, and sends the quantity of goods to the storage module for storage. The controller 3 is also used to compare the quantity of goods with the standard storage quantity of the cargo space stored in the database to determine whether the inventory is sufficient. If not, it sends a shortage warning prompt to the monitor 4. Specifically, the infrared light curtain sensor group 2 monitors the goods in the cargo space in an all-round manner through its cross-layout. When the position of the goods in the cargo space changes or new goods are put in or the original goods are taken out, the sensor group will send these change information to the controller 3 in the form of electrical signals.

[0045] After receiving these signals, the controller 3 uses the built-in algorithm to analyze and process the signals. Due to the layout characteristics of the sensor group and the principle of monitoring the goods, the controller 3 can infer the approximate outline and boundary of the goods in the cargo space according to the change of the signal, and then calculate the size of the space occupied by the goods. Then, combined with the cargo size information pre-stored in the system and the spatial size information of the cargo space, the number of goods in each cargo space is analyzed and obtained through space calculation and ratio conversion. For example, if it is known that the goods are cubes with a specific side length, and the length, width and height of the cargo space are known at the same time, the number of goods can be obtained by calculating the ratio of the space occupied by the goods in the cargo space to the volume of a single cargo. After obtaining the number of goods, the controller 3 sends it to the storage module for storage. The storage module will record and save the cargo quantity information of each cargo space according to a specific data structure and storage method for subsequent query and use. At the same time, the controller 3 will also obtain the standard storage quantity of the cargo space from the database. The database stores the standard value of the number of goods that should be stored in each cargo space according to the design and planning. The controller 3 compares the calculated number of goods with the standard storage quantity. If the calculated quantity of goods is less than the standard storage quantity, the controller 3 determines that the inventory is insufficient. After determining that the inventory is insufficient, the controller 3 will send a shortage warning prompt to the monitor 4 according to the preset communication protocol and method. After receiving the warning prompt, the monitor 4 will display the shortage information to the management personnel in an intuitive way (such as a pop-up window, a warning sign showing a specific color, etc.), so that the management personnel can understand the inventory situation in time and take corresponding measures, such as arranging replenishment, etc.

[0046] In some embodiments, the warehouse management system using infrared light curtain monitoring also includes a weight sensor 11, which is arranged under each cargo position, and is used to measure the weight of the goods in the target cargo position, and send the weight of the goods to the controller 3; the controller 3 is also used to determine whether the target cargo position is an abnormal cargo position according to the weight of the goods, and if it is an abnormal cargo position, the target cargo position and the corresponding weight of the goods are sent to the monitor 4. Specifically, the weight sensor 11 is precisely placed under each cargo position. When the goods are placed on the cargo position, the weight sensor 11 will sense the pressure exerted by the goods in real time, and convert this pressure signal into an electrical signal, thereby measuring the weight of the goods in the target cargo position. Then, the weight sensor 11 sends the measured cargo weight data to the controller 3 through a pre-set communication line. After receiving the cargo weight data from the weight sensor 11, the controller 3 will compare it with the normal weight range preset in the system. This normal weight range is determined based on factors such as the type, specification and expected quantity of the goods stored in each cargo location. If the measured weight of the goods is not within this preset normal weight range, the controller 3 will determine that the target cargo location is an abnormal cargo location, which may mean that the quantity of goods is abnormal or there is a problem with the goods themselves (such as damage to the goods, replacement, etc.). Once the controller 3 determines that the target cargo location is an abnormal cargo location, it will send the identification information of the target cargo location and the corresponding cargo weight data to the monitor 4 through the communication link. After receiving this information, the monitor 4 will display it in an intuitive way, such as highlighting the location of the abnormal cargo location and the corresponding weight data on the screen, so that the management personnel can promptly discover and handle the abnormal situation.

[0047] In some embodiments, after the controller 3 in the warehouse management system using infrared light curtain monitoring determines the cargo movement information according to the infrared light curtain sensor group 2, if it is detected that the cargo has not moved within the set time, the long-term accumulation cargo prompt information is sent to the monitor 4. Specifically, the infrared light curtain sensor group 2 monitors the cargo in the cargo space in real time through its cross layout. When the cargo moves in the cargo space, the sensor group detects the light changes caused by the movement and sends the relevant signal to the controller 3. The controller 3 can determine the cargo movement information according to these signals, including parameters such as the direction, distance and time of movement. The controller 3 sets a specific time threshold, which is determined comprehensively based on factors such as the characteristics of the cargo, the requirements of warehouse management and experience. For example, for some perishable cargo, the time threshold may be set shorter; while for some relatively stable cargo, the time threshold may be set longer. After determining the cargo movement information, the controller 3 starts timing and continues to pay attention to whether the cargo moves again within the set time. If the cargo does not move within the set time, the controller 3 determines that the cargo is in a long-term accumulation state. Then, the controller 3 will send the long-term piled goods prompt information to the monitor 4 according to the preset communication protocol and format. After receiving the prompt information, the monitor 4 will display the relevant information to the manager in an intuitive way, such as popping up a prompt window to show which cargo positions are in a long-term piled state, so that the manager can understand the situation in time and take corresponding measures, such as checking the cargo, rearranging the storage location, etc.

[0048] The warehouse management system using infrared light curtain monitoring in this embodiment includes: shelves 1, infrared light curtain sensor group 2, controller 3, monitor 4, data analysis module 5, infrared transmitter 6, receiver 7, camera 8, abnormal alarm module 9, prohibited items alarm module 10, and weight sensor 11.

[0049] Shelf 1 is provided with multiple cargo spaces for placing cargo; An infrared light curtain sensor group 2 is arranged at each cargo position in the shelf 1. The infrared light curtain sensor group 2 uses a cross layout to send a signal to the controller 3 to monitor the status change of the cargo in each cargo position in real time; The controller 3 is connected to the infrared light curtain sensor group 2 for receiving the signal of the infrared light curtain sensor group 2 and judging the state of the cargo position and whether the cargo is in a stacked position according to the sensor signal; A monitor 4 is connected to the controller 3 for displaying a real-time image of the shelf 1; The controller 3 has a built-in data analysis module 5, which is used to perform in-depth analysis on the received sensor signal to identify and warn of abnormal conditions, including abnormal cargo position and cargo cross-location. The infrared light curtain sensor group 2 is composed of a plurality of infrared transmitters 6 and a receiver 7. The plurality of infrared transmitters 6 are used to emit infrared light networks, and the receiver 7 is used to receive the infrared light networks. A camera 8 is connected to the controller 3 for real-time monitoring of the cargo position status and cargo situation on the shelf 1 and sending the information to the monitor 4; The monitor 4 also includes an abnormal alarm module 9, which is used to analyze and identify the real-time image sent by the camera 8. After determining the cargo type information, if it is detected that the cargo type information does not match the preset standard storage cargo type, it is determined that there is a cargo cross-location in the target cargo location, and a cargo cross-location warning is sent to the monitor 4; if it is detected that the state of the target cargo location is abnormal, a cargo location state abnormality warning is sent to the monitor 4; The prohibited items alarm module 10 is used to send out an alarm message. The alarm module is in communication with the controller 3. The controller 3 is also used to determine whether there are preset prohibited items stored in the cargo space according to the cargo situation. If there are, a prohibited item alarm is sent to the monitor 4. After determining that the prohibited items exist, the controller 3 controls the camera 8 in the corresponding area to obtain an image of the prohibited items, determines the type of the prohibited items through image recognition technology, generates a prohibited items report including the type, quantity and location of the prohibited items, and sends the prohibited items report to the monitor 4; The controller 3 analyzes and obtains the quantity of goods in each cargo space in combination with the detection results of the infrared light curtain sensor group 2, and sends the quantity of goods to the storage module for storage. The controller 3 is also used to compare the quantity of goods with the standard storage quantity of the cargo space stored in the database to determine whether the inventory is sufficient. If not, a shortage warning prompt is sent to the monitor 4; The weight sensor 11 is arranged under each cargo position, and is used to measure the weight of the cargo in the target cargo position, and send the cargo weight to the controller 3; the controller 3 is also used to determine whether the target cargo position is an abnormal cargo position according to the cargo weight, and if it is an abnormal cargo position, send the target cargo position and the corresponding cargo weight to the monitor 4; After the controller 3 determines the cargo movement information according to the infrared light curtain sensor group 2 , if it detects that the cargo has not moved within a set time period, it sends a long-term cargo accumulation prompt information to the monitor 4 .

[0050] Through the above embodiment, all-round monitoring of the cargo status can be achieved. The cargo position and cargo status can be determined through the infrared light curtain sensor group 2 and the controller 3. The monitor 4 intuitively displays the real-time image of the shelf 1, and timely warns of abnormal cargo position status, cargo mixing, prohibited items, etc., to remind management personnel to manage.

Claims

1. A warehouse management system using infrared light curtain monitoring, characterized in that: include: Shelves are provided with multiple cargo spaces for placing goods; An infrared light curtain sensor group is arranged at each cargo position in the shelf, and the infrared light curtain sensor group uses a cross layout to send a signal to the controller to monitor the status change of the cargo in each cargo position in real time; A controller is connected to the infrared light curtain sensor group for receiving signals from the infrared light curtain sensor group and determining the state of the cargo position and whether the cargo is stacked according to the sensor signals; The monitor is connected to the controller for displaying the real-time picture of the shelf.

2. The warehouse management system using infrared light curtain monitoring according to claim 1 is characterized in that: The controller has a built-in data analysis module, which is used to perform in-depth analysis on the received sensor signals to identify and warn of abnormal conditions, including abnormal cargo position conditions and cargo cross-location.

3. The warehouse management system using infrared light curtain monitoring according to claim 1 is characterized in that: The infrared light curtain sensor group is composed of a plurality of infrared transmitters and receivers. The plurality of infrared transmitters are used to emit infrared light networks, and the receivers are used to receive the infrared light networks.

4. The warehouse management system using infrared light curtain monitoring according to claim 1 is characterized in that: It also includes a plurality of cameras, which are connected to the controller for real-time monitoring of the storage space status and cargo conditions on the shelves and sending the results to the monitor.

5. The warehouse management system using infrared light curtain monitoring according to claim 4 is characterized in that: The monitor also includes an abnormal alarm module, which is used to analyze and identify the real-time images sent by the camera. After determining the cargo type information, if it is detected that the cargo type information does not match the preset standard storage cargo type, it is determined that there is a cargo jam in the target cargo location, and a cargo jam warning is sent to the monitor; if it is detected that the target cargo location status is abnormal, an abnormal cargo location status warning is sent to the monitor.

6. The warehouse management system using infrared light curtain monitoring according to claim 4 is characterized in that: It also includes a prohibited item alarm module for issuing an alarm message. The prohibited item alarm module is in communication with the controller. The controller is also used to determine whether there are preset prohibited items stored in the cargo position according to the cargo situation. If so, a prohibited item alarm is sent to the monitor.

7. The warehouse management system using infrared light curtain monitoring according to claim 6 is characterized in that: After determining the existence of the prohibited items, the controller controls the camera in the corresponding area to obtain images of the prohibited items, determines the types of the prohibited items through image recognition technology, generates a prohibited item report including the types, quantities and locations of the prohibited items, and sends the prohibited item report to the monitor.

8. The warehouse management system using infrared light curtain monitoring according to claim 1 is characterized in that: The controller combines the detection results of the infrared light curtain sensor group to analyze and obtain the quantity of goods in each cargo space, and sends the quantity of goods to the storage module for storage. The controller is also used to compare the quantity of goods with the standard storage quantity of the cargo space stored in the database to determine whether the inventory is sufficient. If not, a stock-out warning prompt is sent to the monitor.

9. The warehouse management system using infrared light curtain monitoring according to claim 1 is characterized in that: It also includes a weight sensor, which is arranged under each cargo location and is used to measure the weight of the cargo in the target cargo location and send the cargo weight to the controller; the controller is also used to determine whether the target cargo location is an abnormal cargo location based on the cargo weight. If it is an abnormal cargo location, the target cargo location and the corresponding cargo weight are sent to the monitor.

10. The warehouse management system using infrared light curtain monitoring according to claim 1 is characterized in that: After the controller determines the cargo movement information according to the infrared light curtain sensor group, if it is detected that the cargo has not moved within a set time period, it sends a long-term cargo accumulation prompt information to the monitor.

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