Aluminum processing deep well casting production line personnel positioning alarm informatization system

Abstract

The invention provides a personnel positioning and alarming informatization system for an aluminum processing deep well casting production line, which adopts a UWB base station to cover areas at least comprising a casting bay, a smelting bay and a converter area in the aluminum processing deep well casting and casting production line so as to realize real-time positioning of personnel in the production area. Precise personnel positioning is realized by adopting a UWB positioning technology, the position of a positioning label is calculated according to positioning label signal data on personnel and equipment provided by a positioning system, and position information is displayed on a personnel positioning software platform. The number, the positions and the distribution condition of the personnel in the working area, the position of each person at any moment, the risk early warning prompt and the alarm of the position and the movement track of each time period are timely and accurately provided, and real-time remote visual supervision of the operating personnel is realized.

Description

Technical Field

[0001] The invention belongs to the technical fields of safe production, nonferrous metal processing and manufacturing, and in particular relates to a personnel positioning alarm information system for an aluminum processing deep well casting production line. Background Art

[0002] The existing video surveillance, production rules and regulations and other solutions to ensure safe production are relatively complete, but for the deep well casting process of aluminum processing, there is a corresponding demand for strict control of the number of personnel. The relevant standard "Criteria for Determining Major Accident Hazards in Industry and Trade (2017 Edition)" lists "Article 7: The number of people on the casting workshop is not strictly controlled, and the entry of non-production personnel is not controlled" as a major safety hazard. At the same time, the production site danger factors of the melting and casting process are more obvious. The enterprise safety management needs to strictly control the number of people in the melting and casting workshop to minimize the number of irrelevant personnel stranded at the production site. At present, the melting and casting production line site has not effectively supervised the number of people entering the production site and the on-the-job personnel of the key processes. There is a possibility that too many people enter the site and the on-the-job personnel of the key processes are missing. The existing monitoring and early warning solutions are also difficult to effectively solve the above problems. Summary of the invention

[0003] Considering the defects and deficiencies of the existing technology, and further considering the current situation of smelting and casting production, there is inadequate supervision of important positions and important operating procedures, and there are blind spots in safety supervision. It is impossible to carry out targeted and precise management of some key areas, key time periods, and key processes, and it is impossible to respond to events efficiently and quickly. For example, for important casting time periods, there is a lack of precise control over the number of personnel, location, working status, etc.; there is a lack of monitoring and early warning of personnel violations in key operating areas and key operating periods such as converters that are prone to aluminum leakage accidents.

[0004] The invention provides a personnel positioning alarm information system for an aluminum processing deep well casting production line.

[0005] The specific technical solutions are as follows: Firstly, a personnel positioning method for an aluminum processing deep well casting production line is provided: a UWB base station is used to cover at least the casting bay, smelting bay and converter area in the aluminum processing deep well casting and melting production line to realize real-time positioning of personnel in the production area.

[0006] Furthermore, according to the personnel activity factors, importance, characteristics of the equipment distribution area, application scenarios of positioning technology, and differences in positioning accuracy, presence positioning, one-dimensional positioning, two-dimensional positioning and space positioning base station groups are deployed respectively, and networked with dedicated signal transmission cables, all positioning base station signals are converged and connected to the personnel positioning server, and the personnel positioning system management data and business data are sent to the aluminum processing and casting line smart security system server to achieve real-time positioning of personnel in the entire production area; and provide the number, location, distribution of personnel in the working area, and the location of each person at each time, risk warning prompts and alarms of the location, as well as activity trajectories in each time period, to achieve real-time remote visual supervision of operators.

[0007] Furthermore, virtual electronic fences are set up for key equipment and key operation areas to automatically track and identify people entering the area; if unauthorized people enter the area, a warning signal is issued, and the alarm mode includes at least: Illegal approach / intrusion alarm: When unauthorized personnel enter the control area of ​​the aluminum processing casting line, the alarm is activated; Detention alarm: Set up a key monitoring area for detention. If an abnormal person is found to be detained for an excessive period of time, a detention alarm will be issued. Overcrowding alarm: The smelting and casting production area is divided into multiple control areas. If the total number of people in the corresponding control area exceeds the set value, an alarm is activated to remind people to evacuate to avoid overcrowding in the area. Personnel absence alarm: For important places including the deep well casting area and the main operation room, when the number of personnel is less than the set value, the alarm will be activated to remind people of the shortage of personnel and avoid personnel absence in the area.

[0008] Furthermore, when the casting machine / converter is started, the area associated with the casting machine / converter starts the area over-limit rule, that is, an alarm is triggered when the number of people in the area exceeds the limit; When the casting machine / converter is not started, the area over-limit rules of the associated area are disabled, and no alarm will be issued if the number of people in the area exceeds the limit, and all alarms being sent will be terminated.

[0009] Furthermore, in order to achieve consistency in personnel positioning and casting machine equipment signal status collection data, a timing function is established in the casting machine control logic for the flow, filling, crystallization and steady-state process of molten aluminum before casting. The different status signals are accumulated and converted into the entire casting time to ensure the accuracy of the casting preparation and casting process time, thereby ensuring the accuracy of the alarm rule triggering.

[0010] Furthermore, in the casting machine control logic, the states of the aluminum liquid flow, filling, crystallization and steady-state process before casting are timed, and the whole casting time is converted into cumulatively through different state signals; A converter start switch is added at the converter port of the smelting furnace. After the start switch is triggered, the warning lights installed around the converter are used to remind the converter of dangerous operations. At the same time, the converter switch signal of the smelting furnace is connected with the signal of the static tilting furnace that receives the aluminum liquid to realize the converter status signal interlocking function to ensure that the tilting furnace cannot move, and the converter operation status is displayed in real time on the tilting furnace screen to avoid leakage of aluminum liquid during the converter transmission process caused by other personnel's misoperation of the tilting furnace during the converter process; The above status signals are sent synchronously to the positioning system to notify personnel within the range that the operation is in progress.

[0011] Furthermore, the alarm mode also includes: Illegal approach / intrusion alarm: By setting the authority of the electronic fence, an alarm will be triggered when unauthorized personnel enter the control area of ​​the aluminum processing casting line; Detention alarm: Set the area for key monitoring of detention. If an abnormal person is found to be detained for an excessive period of time, an alarm will be triggered. No-accompaniment alarm: By setting up a guardian and worker accompaniment mechanism, if no one is found to be accompanying, an alarm will be activated to prevent illegal behavior of unaccompanied operation; Wrong interval alarm: In key areas of the aluminum processing and casting line, including the distribution room and booster station, set a limited work range when issuing a work ticket to prevent wrong intervals and avoid "non-stop" incidents of the aluminum processing and casting line.

[0012] On the basis of the above method design, the present invention further provides a personnel positioning alarm information system for an aluminum processing deep well casting production line, including: a UWB positioning system and a personnel positioning system; the UWB positioning system includes multiple UWB base stations and multiple UWB positioning beacons; the personnel positioning system is deployed with at least a map module and a virtual electronic fence module; the map module is used to display the location of the personnel corresponding to the UWB positioning beacon; the virtual electronic fence module is used to set a virtual electronic fence on the map, automatically track and identify personnel entering the area, and trigger an alarm according to the alarm rules.

[0013] Furthermore, it also includes cameras deployed in the aluminum processing deep well casting and melting production line, which includes at least the casting span, the smelting span, and the converter area, for linking with the personnel positioning system to realize video monitoring.

[0014] Furthermore, it also includes an access control system and equipment detection sensors, which are used to work with the personnel positioning system to prohibit unauthorized personnel from entering and collect the status of key equipment.

[0015] Compared with the existing technology, the present invention and its preferred solution can significantly improve the safety management of deep well casting, effectively realize the precise positioning of foundry personnel, accurately limit the number of people, and timely issue alarms for the absence of personnel in important positions. It can achieve accurate linkage with key equipment in the production area to effectively realize danger warning or alarm. It has excellent promotion and application prospects in the context of deep well casting production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall architecture of the system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the UWB high-precision positioning principle of an embodiment of the present invention; Figure 3 This is a reference diagram of the smelting and casting production area according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] Hereinafter, the specific embodiments of the present application will be described in detail with reference to the accompanying drawings. According to these detailed descriptions, those skilled in the art can clearly understand the present application and can implement the present application. Without violating the principles of the present application, the features in the various embodiments can be combined to obtain new implementations, or certain features in certain embodiments can be replaced to obtain other preferred implementations.

[0018] In order to make the features and advantages of this patent more obvious and easy to understand, the following embodiments are specifically described in detail with the accompanying drawings as follows: In the systematic design scheme provided by the present invention, UWB precise positioning technology is used to cover the personnel positioning systems of the casting span, smelting span, converter area, etc. in the aluminum processing deep well casting and melting production line. The system is deployed in the management information area. According to the personnel activity factors, importance, equipment distribution area characteristics and positioning technology application scenarios and positioning accuracy differences in these scenes, existence positioning, one-dimensional positioning, two-dimensional positioning and space positioning base station groups are deployed respectively, and a dedicated signal transmission cable is used to form a network, and all positioning base station signals are converged and connected to the personnel positioning server, and the personnel positioning system management data and business data are sent to the aluminum processing melting and casting line smart security system server, so as to realize the personnel positioning of the entire production area. Real-time positioning, real-time trajectory display of personnel, historical trajectory query, management of outsiders, dynamic roll call, virtual electronic fence, video linkage, remote video communication and emergency rescue functions. At the same time, through the smart security system, you can also link and view the video surveillance of each area, and conduct all-round, full-element, and full-coverage real-time perception, prediction and early warning of "unsafe behaviors of people, unsafe conditions of objects, unsafe factors of the environment, and management loopholes" in the aluminum processing and casting production line area, so as to catch them early, stop and correct unsafe phenomena, realize real-time perception of safety situation, smart supervision of on-site operations, dynamic early warning of risks and hidden dangers, effectively control safety risks, prevent production safety accidents, and improve the level of inherent safety. Its overall architecture is as follows: Figure 1 shown.

[0019] This system uses UWB positioning technology to achieve precise positioning of personnel. It calculates the location of the positioning tags based on the positioning tag signal data on employees and equipment provided by the positioning system, and displays the location information on the personnel positioning software platform. It provides timely and accurate information on the number, location, distribution of personnel in the work area, and the location of each person at any time, risk warning prompts and alarms for the location, and activity trajectories in each time period, thereby achieving real-time remote visual supervision of operators. The functions that can be achieved include but are not limited to the following.

[0020] 1. Emergency rescue function: The staff wears a positioning tag. Once an emergency occurs, they can trigger the SOS button on the positioning tag to contact the monitoring center and get support in time to ensure the safety of the personnel.

[0021] 2. Real-time personnel positioning function: Display the real-time location of all personnel in the current area in the visual graphical interface environment of the system. Display the extended information such as the name, age, occupation, etc. of the designated personnel according to the needs of the monitoring management personnel.

[0022] 3. Map presentation function: All located personnel information will be presented on the GIS map, and the location information will be displayed in an integrated manner. The map supports operations such as zooming, dragging, and clicking to view details.

[0023] 4. Regional monitoring function: monitor the distribution and working status of personnel in the area to avoid overcrowding, solitude, entry and exit of restricted areas, etc.

[0024] 5. Real-time personnel trajectory display function: The movement trajectory of the selected personnel is displayed in the system's visual graphical interface environment. The navigation map automatically switches as the tag moves. The current location of the tag can be seen at any time, and the number of people and distribution at a certain location can be queried and displayed at any time.

[0025] 6. Historical track query function: You can query the historical track of a specified person within a certain period of time at any time according to the name, work number and other information of the selected person, and can play it back. It supports track playback of any time period, supports multiple speed adjustment, and historical data can be saved for no less than 1 year.

[0026] 7. Virtual electronic fence function: set up virtual electronic fences on the map for key equipment (such as casting area, converter area, material preparation area, lifting and unloading area, etc.) and key operation areas, and the system automatically tracks and identifies people entering the area. If someone enters the area without authorization, the system will promptly send a warning signal to the monitoring center and the parties involved, and remind the on-site personnel in time. Supports direct dragging and marking of fence areas on the map, which is convenient and easy to use. Supports custom configuration of fence properties, such as effective time, alarm mode, etc. The alarm mode includes but is not limited to: 1) Illegal approach / intrusion alarm: Flexible setting of electronic fences. When unauthorized personnel enter the control area of ​​the aluminum processing casting line, the system will automatically alarm and notify the management personnel.

[0027] 2) Detention alarm: Set up key monitoring areas for detention. If any abnormal person is found to be detained for an excessive period of time, the system will issue a detention alarm to notify the management personnel.

[0028] 3) Overcrowding alarm: The smelting and casting production area is divided into three levels of control areas, namely level 1, level 2 and level 3, according to the different dangers and degrees. If the total number of people in the corresponding control area exceeds the set value, the system will automatically alarm immediately to remind people to evacuate to avoid overcrowding in the area.

[0029] 4) Personnel absence alarm: For important places such as the deep well casting area and the main operation room, when the number of personnel is less than the set value, the system will immediately issue an automatic alarm to remind people of the shortage of personnel and avoid personnel absence in the area.

[0030] Furthermore, the following extended alarm functions can be provided: 1) Illegal approach / intrusion alarm: Flexible setting of electronic fences. When unauthorized personnel enter the control area of ​​the aluminum processing casting line, the system will automatically alarm and notify the management personnel.

[0031] 2) Detention alarm: Set up key monitoring areas for detention. If any abnormal person is found to be detained for an excessive period of time, the system will issue a detention alarm to notify the management personnel.

[0032] 3) No-accompaniment alarm: Set up a guardian and worker accompaniment mechanism. If no one is accompanying, the system will automatically alarm immediately to prevent violations such as unsupervised operation.

[0033] 4) Wrong interval alarm: For key areas of the aluminum processing and casting line, such as the distribution room and booster station, set a limited work range when issuing work tickets to prevent wrong intervals and avoid "non-stop" incidents of the aluminum processing and casting line.

[0034] In the above technical solutions, UWB positioning technology is used to achieve precise positioning of personnel. The positioning system calculates the location of the positioning tag signal data on employees and equipment, and displays the location information on the personnel positioning software platform. It provides timely and accurate information on the number, location, distribution of personnel in the work area, and the location of each person at any time, risk warning prompts and alarms of the location, as well as activity trajectories in different time periods, to achieve real-time remote visual supervision of operators.

[0035] 1. Hardware: UWB base station equipment has high stability, strong anti-interference ability, and explosion-proof product certification. It can be powered by POE mode, and its deployment and installation are simple and convenient, with low subsequent maintenance costs. UWB positioning beacons can be made into visitor badges or fixed on safety helmets through card holders, which is flexible and convenient to meet enterprise management needs.

[0036] 2. Software: By integrating ultra-high frequency positioning technology, three-dimensional display, monitoring linkage and other technologies, the visual management of the safety supervision work of the entire factory can be achieved. Combined with the electronic fence system based on location data, it provides users with more reliable active virtual electronic fence protection and video surveillance linkage to achieve all-round monitoring and protection.

[0037] like Figure 2 As shown, the UWB high-precision positioning system adopted in the embodiment of the present invention is based on wireless pulse technology. By deploying a reasonable number of UWB base stations in the workshop, the positions of tags carried by employees and vehicles can be accurately located in real time, and the position information of people, vehicles and objects can be displayed on the company's control center software system platform with zero delay, simulating an intuitive dynamic scene.

[0038] In the embodiment of the present invention, the system platform mainly includes three parts: 1. Positioning tag: The UWB positioning tag is in the form of a card. It serves as a carrier for accurate positioning within the positioning area. It is available in both badge type (generally worn by visitors) and helmet type (fixed on the helmet through a card holder). It can be flexibly selected according to the number of employees in the enterprise (optional at any time).

[0039] 2. Positioning base station: The positioning base station is deployed in the melting and casting workshop according to the positioning accuracy requirements and combined with the on-site survey and design planning. Wired base stations and wireless base stations are arranged according to actual needs.

[0040] 3. Software platform: Contains location map and mapping service software, real-time trajectory display and quick search, historical location trajectory, tag organizational structure management, multi-logic electronic fence and alarm, video linkage, software permission management, inspection point and trajectory management, regional electronic roll call, intelligent attendance and access management, location heat map evaluation and analysis and other rich application functions.

[0041] In this system, the distance between the tag and the positioning base station is accurately calculated based on the positioning algorithm; the system uses the measurement data of multiple positioning base stations to obtain and analyze the spatial position of the tag, and finally transmits the information to the relevant information system. The positioning base station is organized in the form of a cellular unit (Cell), and supports the roaming of tags between different positioning units in the same spatial coordinate system; in each positioning unit, the main sensor sends the tag position to the positioning platform through the industrial field bus or Ethernet, and performs real-time position information processing.

[0042] This system installs the server in the centralized control center and can log in to the system through the Web to view and perform related operations (account permissions can be set).

[0043] The following is a further description of the present invention through a specific design and application example: Take the implementation of the personnel positioning alarm function of the 1# melting and casting line as an example. Figure 3 As shown: 1. Overcrowding alarm in workshop (level 3 control area). It can achieve: The total number of people in the No. 1 melting and casting line factory is controlled at 29, and an alarm will be activated if the number is exceeded.

[0044] A 70-inch display was installed in the office building.

[0045] (II) Holding furnace area (secondary control area) It can achieve: the total number of people in the holding furnace area is controlled within 15 people, and an alarm will be triggered if the number exceeds the limit.

[0046] (III) Overstaffing and off-duty alarm in the foundry area (first-level control area). The total number of people in the casting area is controlled between 2 and 8. If the number is exceeded, an alarm will be triggered; if the number is insufficient, an alarm will also be triggered.

[0047] Monitoring conditions: From the start of casting to the end of casting, the casting machine gives the start and end signals. From the preparation stage, casting stage to the end of casting, the secondary system of the casting machine sends different signal states. After linkage with the positioning system, the positioning alarm can automatically realize status warning and meet the safety control requirements of the casting area. The specific implementation is as follows: ① The positioning system periodically obtains the fields of the casting machine database table scada dat: If "s20 101 == 0", the "1# casting machine area over limit" rule is disabled. After disabling, all alarms with the alarm status of "not ended" will end; if "s20101 == 1", the "1# casting machine area over limit" rule is enabled. 0 means not in casting preparation or casting process, 1 means in casting preparation or casting process, and the collection cycle interval is 3 seconds.

[0048] ② To meet the data consistency requirements between the personnel positioning system and the casting machine equipment signal status collection: In the casting machine control logic, a timing function is established for the flow, filling, crystallization and steady-state process of molten aluminum before casting, and the entire casting time is converted into cumulative signals of different states. This method can ensure the accuracy of the casting preparation and casting process time, and ensure the consistency of the personnel positioning system with the casting signal, so that safety control measures can be accurately implemented.

[0049] (IV) Report an alarm if the main operator of the foundry is off duty. Requirements: The total number of people in the main operation room should not be less than 1. If the number of people is insufficient, an alarm will be activated.

[0050] (V) Alarm for personnel leaving their posts in the converter area (3 converter chutes in total). Requirements: During the whole process of converter operation, there must be no less than one person on site. If the number of people is insufficient, an alarm will be activated.

[0051] Among the converter personnel, all personnel in the converter area are on the white list, and an alarm will be triggered if the personnel qualifications do not meet the requirements.

[0052] In the converter stage, the smelting furnace equipment control system sends out the signal status of the converter. After automatically linking with the positioning system, the positioning alarm can provide real-time status warning to meet the safety control requirements of the converter operation area. The specific implementation is as follows: Add a converter start switch at the converter mouth of the smelting furnace. After the start switch is triggered, the warning lights installed around the converter remind the converter of dangerous operations. At the same time, the smelting furnace converter switch signal establishes a communication connection with the static tilting furnace signal that receives aluminum liquid, realizing the converter status signal interlocking function, which can ensure that the tilting furnace cannot move, and display the converter operation status in real time on the tilting furnace screen, avoiding leakage of aluminum liquid during the converter transmission process caused by other personnel misoperating the tilting furnace during the converter process. These signal states are sent synchronously to the positioning system to let the entire workshop personnel know that the converter operation is in progress.

[0053] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

[0054] This patent is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of a personnel positioning alarm information system for an aluminum processing deep well casting production line under the inspiration of this patent. All equal changes and modifications made according to the scope of the patent application of the present invention should be covered by this patent.

Claims

1. A personnel positioning method for an aluminum processing deep well casting production line, characterized by: UWB base stations are used to cover the aluminum processing deep well casting and melting production line, including at least the casting bay, smelting bay, and converter area, to achieve real-time positioning of personnel in the production area.

2. The personnel positioning method for aluminum processing deep well casting production line according to claim 1 is characterized by: Based on the personnel activity factors, importance, characteristics of the equipment distribution area, application scenarios of positioning technology, and differences in positioning accuracy, presence positioning, one-dimensional positioning, two-dimensional positioning, and space positioning base station groups are deployed respectively, and networked with dedicated signal transmission cables. All positioning base station signals are aggregated and connected to the personnel positioning server, and the personnel positioning system management data and business data are sent to the aluminum processing and casting line smart security system server to achieve real-time positioning of personnel in the entire production area; and the number, location, distribution of personnel in the working area, and the location of each person at each time, risk warning prompts and alarms of the location, as well as activity trajectories in each time period are provided to achieve real-time remote visual supervision of operators.

3. The personnel positioning method for aluminum processing deep well casting production line according to claim 1 is characterized by: Set up virtual electronic fences for key equipment and key operation areas to automatically track and identify people entering the area; if anyone enters the area without authorization, a warning signal will be issued. The alarm mode includes at least: Illegal approach / intrusion alarm: When unauthorized personnel enter the control area of ​​the aluminum processing casting line, the alarm is activated; Detention alarm: Set up a key monitoring area for detention. If an abnormal person is found to be detained for an excessive period of time, a detention alarm will be issued. Overcrowding alarm: The smelting and casting production area is divided into multiple control areas. If the total number of people in the corresponding control area exceeds the set value, an alarm will be activated to remind people to evacuate to avoid overcrowding in the area. Personnel absence alarm: For important places including the deep well casting area and the main operation room, when the number of personnel is less than the set value, the alarm will be activated to remind people of the shortage of personnel and avoid personnel absence in the area.

4. The personnel positioning method for aluminum processing deep well casting production line according to claim 3 is characterized by: When the casting machine / converter is started, the area associated with the casting machine / converter starts the area over-limit rule, that is, an alarm is triggered when the number of people in the area exceeds the limit; When the casting machine / converter is not started, the area over-limit rules of the associated area are disabled, and no alarm will be issued if the number of people in the area exceeds the limit, and all alarms being sent will be terminated.

5. The personnel positioning method for aluminum processing deep well casting production line according to claim 4 is characterized in that: In order to achieve consistency between personnel positioning and casting machine equipment signal status collection data, a timing function is established in the casting machine control logic for the flow, filling, crystallization and steady-state process of molten aluminum before casting. The different status signals are accumulated and converted into the entire casting time to ensure the accuracy of casting preparation and casting process time, thereby ensuring the accuracy of alarm rule triggering.

6. The personnel positioning method for aluminum processing deep well casting production line according to claim 3 is characterized by: In the casting machine control logic, the states of aluminum liquid flow, filling, crystallization and steady-state process before casting are set up for timing, and the whole casting time is converted into cumulatively through different state signals; A converter start switch is added at the converter port of the smelting furnace. After the start switch is triggered, the warning lights installed around the converter are used to remind the converter of dangerous operations. At the same time, the converter switch signal of the smelting furnace is connected with the signal of the static tilting furnace that receives the aluminum liquid to realize the converter status signal interlocking function to ensure that the tilting furnace cannot move, and the converter operation status is displayed in real time on the tilting furnace screen to avoid leakage of aluminum liquid during the converter transmission process caused by other personnel's misoperation of the tilting furnace during the converter process; The above status signals are sent synchronously to the positioning system to notify personnel within the range that the operation is in progress.

7. The personnel positioning method for aluminum processing deep well casting production line according to claim 3 is characterized by: The alarm mode also includes: Illegal approach / intrusion alarm: By setting the authority of the electronic fence, an alarm will be triggered when unauthorized personnel enter the control area of ​​the aluminum processing casting line; Detention alarm: Set up a key monitoring area for detention. If an abnormal person is found to be detained for an excessive period of time, an alarm will be triggered. No-accompaniment alarm: By setting up a guardian and worker accompaniment mechanism, if no one is found to be accompanying, an alarm will be activated to prevent illegal behavior of unaccompanied operation; Wrong interval alarm: In key areas of the aluminum processing and casting line, including the distribution room and booster station, set a limited work range when opening a work ticket to prevent wrong intervals and avoid "non-stop" incidents of the aluminum processing and casting line.

8. A personnel positioning alarm information system for aluminum processing deep well casting production line, characterized in that: Based on the personnel positioning method of the aluminum processing deep well casting production line according to any one of claims 1-7, it includes: a UWB positioning system and a personnel positioning system; the UWB positioning system includes multiple UWB base stations and multiple UWB positioning beacons; the personnel positioning system is deployed with at least a map module and a virtual electronic fence module; the map module is used to display the location of the personnel corresponding to the UWB positioning beacon; the virtual electronic fence module is used to set a virtual electronic fence on the map, automatically track and identify the personnel entering the area, and trigger an alarm according to the alarm rules.

9. The personnel positioning alarm information system for aluminum processing deep well casting production line according to claim 8 is characterized by: It also includes cameras deployed in the aluminum processing deep well casting and melting production line, which includes at least the casting span, smelting span, and converter area, and is used to realize video monitoring in conjunction with the personnel positioning system.

10. The personnel positioning alarm information system for aluminum processing deep well casting production line according to claim 8 is characterized by: It also includes an access control system and equipment detection sensors, which are used to work with the personnel positioning system to prohibit unauthorized personnel from entering and collect the status of key equipment.

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