Safety management and control system and method for personnel positioning data based on UWB

Abstract

The invention belongs to the technical field of information positioning, and particularly provides a UWB-based personnel positioning data security management and control system and a UWB-based personnel positioning data security management and control method. Comprising a UWB positioning label, a UWB positioning base station, a data transmission system and a management and control center. The UWB positioning tag is used for transmitting a UWB signal; the UWB positioning base station is used for receiving and processing UWB signals; the data transmission system transmits the processed signal to the management and control center; the control center analyzes the signals and displays information of related personnel; according to the invention, accurate positioning is realized by using the UWB technology, and multiple arrangement modes are suitable for different use environments; and a centralized management and unified issuing form is adopted, so that the overall management and control efficiency of the power plant is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of information positioning, and specifically provides a UWB-based personnel positioning data security management and control system and method. Background Art

[0002] As a key facility for energy conversion and supply, large power plants have a complex and large operating environment, which is not only reflected in the huge physical space, but also includes complex equipment layout, high-intensity electromagnetic environment and strict safety management requirements. Such an environment places extremely high demands on personnel management and safety monitoring. Traditionally, power plants rely on a widely distributed network of cameras to monitor personnel activities. These cameras are connected to the central control room through a complex wiring system, transmitting real-time image data to the host computer, allowing managers to remotely observe various situations in the work area, including personnel location, behavior and potential safety hazards.

[0003] However, this positioning method based on video surveillance has many limitations. First, from the perspective of storage cost, as the monitoring time increases and the number of cameras increases, the required storage space expands dramatically, which not only requires higher hardware investment, but also brings challenges to data management. The backup, archiving and retrieval process of video data is cumbersome and time-consuming. Especially in emergency situations, the ability to quickly locate key information is crucial, and traditional video surveillance is unable to do so.

[0004] Secondly, the timeliness of video surveillance cannot be ignored. Although the monitoring system can capture images in real time, there is a delay in the immediate feedback of personnel location information. When it is necessary to respond quickly to personnel location changes or emergencies, this lag may result in missing the best time to handle the situation, affecting the efficiency of security management and emergency response.

[0005] Furthermore, although satellite positioning technology performs well in outdoor environments, its application is severely limited in indoor working environments such as power plants due to factors such as building occlusion and signal interference, and its positioning accuracy is greatly reduced or even completely ineffective. This means that in indoor environments, it is not feasible to rely on satellite positioning to track the location of personnel.

[0006] In addition, even if the location information of personnel can be obtained, the existing monitoring system often lacks an intuitive and efficient way to present information. Managers need to spend a lot of time analyzing video content to understand the distribution of personnel and activity patterns, which undoubtedly increases the workload and reduces the efficiency of management and control. Especially in emergency situations where quick decisions or resource allocation are required, the problem of lack of intuitive information display is particularly prominent. Summary of the invention

[0007] The purpose of the present invention is to solve the problems in the prior art and to provide a security management and control system and method based on UWB personnel positioning data. Compared with traditional technologies, the present invention uses UWB technology to achieve precise positioning, and a variety of layout methods are suitable for different usage environments; it adopts centralized management and unified issuance to improve the overall management and control efficiency of the power plant.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a safety management and control system for personnel positioning data based on UWB, characterized in that it includes a UWB positioning tag, a UWB positioning base station, a data transmission system and a management and control center; The UWB positioning tag is used to transmit UWB signals; The UWB positioning base station is used to receive and process UWB signals; The data transmission system transmits the processed signal to the control center; The control center analyzes the signal and displays relevant personnel information.

[0009] Preferably, the UWB positioning base station includes a UWB positioning outdoor base station and a UWB positioning indoor base station; the UWB positioning outdoor base station and the UWB positioning indoor base station are both connected to a data transmission system.

[0010] Preferably, the data transmission system includes a Poe switch and a convergence switch; the Poe switch is connected to the UWB positioning base station via a network cable; the Poe switch and the convergence switch are connected via a network cable or optical fiber; the convergence switch is connected to the management and control center.

[0011] Preferably, the control center includes a server, a software system and a visualization device; the server is connected to the software system; and the software system is connected to the visualization device.

[0012] Preferably, the aggregation switch is connected to the server via a network cable.

[0013] Preferably, the software system includes a positioning information unit, a positioning alarm unit and a track query unit; the positioning information unit, the positioning alarm unit and the track query unit are all connected to the aggregation switch.

[0014] Preferably, the positioning alarm unit includes a virtual electronic fence setting unit and an electronic fence alarm unit; the virtual electronic fence setting unit and the electronic fence alarm unit are both connected to the convergence switch.

[0015] Preferably, the UWB positioning tag is arranged in the working card.

[0016] Preferably, the safety management and control system also includes a charging cabinet for charging the working card, and the charging cabinet is provided with multiple charging slots, a charging system, an operating interface and a pop-up mechanism; the pop-up mechanism and the charging system are both connected to the charging slots; the operating interface is connected to the charging system.

[0017] In a second aspect, the present invention provides a method for security management of personnel positioning data based on UWB, comprising the following steps: S1: Allocate UWB positioning tag work cards to workers and build and install UWB positioning base stations; S2: Establish a three-dimensional model of the power plant and import it into the UWB positioning base station; enter the staff information and equipment information into the UWB positioning base station; S3: Signals are transmitted between the UWB positioning tag and the UWB positioning base station to transmit the positioning information to the display screen and mobile terminal in the UWB positioning base station; through search and query on the display screen and mobile terminal, the worker's positioning information and trajectory information are retrieved and transmitted to the control center through the data transmission system; S4: Set up an electronic fence through the control center. When a worker enters the electronic fence, the UWB positioning tag will sound an alarm, and the control center will send a warning and call up the monitoring equipment at the same time; S5: After work, insert the work card into the charging slot of the charging cabinet for automatic charging. When using it again, collect the work card again through the operation interface.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention transmits UWB signals through UWB positioning tags to achieve positioning functions. The UWB positioning base station is responsible for receiving the signals transmitted by the UWB positioning tags. Through the collaborative work of multiple UWB positioning base stations, more accurate measurement and positioning of personnel positions can be achieved. The UWB positioning base station can transmit the processed signals to the control center through the data transmission system in real time. The control center conducts in-depth analysis, processing and display of the processed signals. By processing these signals, the control center can obtain the real-time location information and other relevant information of the personnel, thereby improving the overall control efficiency of the power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of the charging cabinet of the present invention; Figure 2This is a schematic diagram of the layout architecture of the wired construction of the present invention; Figure 3 This is a schematic diagram of the wireless network construction layout architecture of the present invention; Figure 4 This is a schematic diagram of the layout architecture of the communication gateway type construction of the present invention; Figure 5 The figure is a schematic diagram of a safety control process of personnel positioning data based on UWB in the present invention.

[0021] Among them: 1-work card; 2-charging cabinet; 3-charging slot; 4-operation interface. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The first object of the present invention is to provide a safety management and control system for personnel positioning data based on UWB, characterized in that it includes a UWB positioning tag, a UWB positioning base station, a data transmission system and a management and control center; The UWB positioning tag is used to transmit UWB signals; The UWB positioning base station is used to receive and process UWB signals; The data transmission system transmits the processed signal to the control center; The control center analyzes the signal and displays relevant personnel information.

[0029] The UWB positioning tag is responsible for transmitting the UWB signal, which is the basis for realizing the positioning function. The UWB positioning base station is responsible for receiving the signal transmitted by the UWB positioning tag and processing it. These processes include signal amplification, filtering, demodulation, etc., in order to extract useful positioning information. Through the collaborative work of multiple UWB positioning base stations, more accurate measurement and positioning of personnel positions can be achieved. The UWB positioning base station can transmit the processed signal to the control center through the data transmission system in real time. The control center conducts in-depth analysis, processing and display of the processed signal. By processing these signals, the control center can obtain the real-time location information and other relevant information of the personnel.

[0030] The UWB positioning tag is worn on the staff. The carrier of the UWB positioning tag can be a safety helmet, work clothes, badge, work card or access card, etc. The carrier of the UWB positioning tag is equipped with battery power supply, charging port and one-button call system. The UWB positioning tag can be integrated into daily items such as safety helmets and work clothes, without the need to carry them extra, reducing the burden on the staff. Through the positioning system, management can optimize personnel scheduling, reduce idle time and improve work efficiency. At the same time, it can also better plan the work process to avoid personnel congestion and waste of resources. The built-in battery power supply system of the carrier ensures the continuous operation of the UWB positioning tag, and the setting of the charging port makes charging convenient and fast, without the need to frequently replace the battery; secondly. The setting of the one-button call system enables the staff to quickly send out a distress signal when encountering an emergency, and the positioning system immediately locks its position, providing accurate guidance for the rescue operation, which not only shortens the rescue response time, but also improves the rescue efficiency and maximizes the life safety of the staff.

[0031] The UWB positioning base station includes a UWB positioning outdoor base station and a UWB positioning indoor base station, which respectively locate personnel indoors and outdoors; the UWB positioning outdoor base station and the UWB positioning indoor base station are connected to the data transmission system. In order to avoid insufficient positioning accuracy in the positioning area, at least three UWB positioning base stations are set; when three base stations are set, the layout of the three base stations is an obtuse triangle. The obtuse triangle layout can ensure that the relative position relationship between the base stations is more balanced, reduce the positioning blind area or error accumulation caused by improper base station layout, and thus improve the stability and reliability of the entire positioning system. When one of the base stations in the system composed of three base stations fails or the signal is interfered with, the remaining two base stations can still be used for positioning. Although the accuracy may be slightly reduced, the system can still maintain basic functions, which enhances the robustness and fault tolerance of the system. The UWB positioning base station adopts a waterproof structure, a dustproof structure and an explosion-proof structure. The base station with a waterproof and dustproof structure can be applied to various harsh environments, such as humid and dusty industrial sites, or outdoor rainy and snowy weather, to ensure that the system can still operate stably in these environments. Base stations with explosion-proof structures can be used safely in flammable and explosive environments, preventing explosion accidents caused by circuit short circuits, sparks, etc., and ensuring the safety of personnel and property.

[0032] like Figure 2 As shown, the data transmission system includes a poe (Power over Ethernet) switch and a convergence switch; the poe switch is connected to the UWB positioning base station through a network cable; the poe switch and the convergence switch are connected through a network cable or optical fiber; the convergence switch is connected to the control center. The introduction of the convergence switch makes the system structure more complex and stable, capable of handling more data traffic, and reduces the risk of single point failure.

[0033] The control center includes a server, a software system and a visualization device; the server is connected to the software system; the software system is connected to the visualization device; the visualization device includes a display screen and a mobile phone, etc., and the aggregation switch is connected to the server via a network cable.

[0034] The software system includes a positioning information unit, a positioning alarm unit and a track query unit; the positioning information unit, the positioning alarm unit and the track query unit are all connected to the aggregation switch. Among them, the positioning information includes the name of the personnel, department, position, and work number; the track query unit includes the name of the personnel, work number, start time, and end time; and an alarm is also set on the carrier of the UWB positioning tag.

[0035] The positioning alarm unit includes a virtual electronic fence setting unit and an electronic fence alarm unit; the virtual electronic fence setting unit and the electronic fence alarm unit are both connected to the aggregation switch. The virtual electronic fence setting unit includes fence authority, fence defense, fence disarming, and time setting. The fence authority includes allow, reject, enter, and leave.

[0036] The software system is also connected to monitoring equipment, which can retrieve video footage in a timely manner when an alarm occurs. By combining monitoring equipment with the software system, all-round and all-weather monitoring of the workplace can be achieved, improving the overall safety level and providing more reliable safety protection for staff and assets.

[0037] The UWB positioning tag is set in the working card 1, such as Figure 1 As shown, the present invention also includes a charging cabinet 2 for charging the work card 1, and the charging cabinet 2 is provided with a plurality of charging slots 3, a charging system, an operation interface 4 and a pop-up mechanism; the pop-up mechanism and the charging system are both connected to the charging slot 3; the operation interface 4 is connected to the charging system. The worker inserts the work card 1 into the charging slot 3 for automatic charging and storage, and the worker controls the operation interface 4 to control the charging cabinet 2 to issue the work card 1.

[0038] Exemplarily, the UWB positioning outdoor base station of the present invention is replaced by Beidou positioning. Beidou positioning is not only highly accurate, but also can be used free of charge, thus reducing costs.

[0039] For example, Figure 3 As shown, the UWB positioning base station of the present invention is connected to the server through a 4G or 5G network, or a cloud server is set up and connected to the cloud server through a wireless network. In addition, this UWB positioning base station is battery-powered, which can eliminate the need for wiring construction.

[0040] For example, Figure 4As shown, the UWB positioning base station of the present invention is connected to a server via a communication gateway, a switch, or is connected to a cloud server via a wireless network via a communication gateway, and the UWB positioning base station is battery-powered, eliminating the need for wiring construction.

[0041] The present invention utilizes the UWB system to realize the precise positioning function, and provides two methods of wired and wireless deployment of the positioning base station. The wired deployment does not require regular replacement of batteries for the base station, and the system runs more stably through wired connection; while the wireless deployment eliminates the construction cost of wiring, shortens the construction period, and can achieve rapid installation of the system; the system has multiple functions such as precise positioning, information query, trajectory tracking, electronic fence, etc., and is adapted to the complex and diverse working environment in the power plant; it provides different application forms and can adapt to different management needs, and through centralized management and unified distribution, it further brings convenience to the management and control of the power plant and improves efficiency.

[0042] In a second aspect, the present invention provides a method for securely controlling personnel location data based on UWB, such as Figure 5 The steps shown include: S1: Allocate UWB positioning tag work card 1 to workers and build and install UWB positioning base stations; S2: Establish a three-dimensional model of the power plant and import it into the UWB positioning base station; enter the staff information and equipment information into the UWB positioning base station; S3: Signals are transmitted between the UWB positioning tag and the UWB positioning base station to transmit the positioning information to the display screen and mobile terminal in the UWB positioning base station; through search and query on the display screen and mobile terminal, the worker's positioning information and trajectory information are retrieved and transmitted to the control center through the data transmission system; S4: Set up an electronic fence through the control center. When a worker enters the electronic fence, the UWB positioning tag will sound an alarm, and the control center will send a warning and call up the monitoring equipment at the same time; S5: After work, insert the work card 1 into the charging slot 3 of the charging cabinet 2 for automatic charging. When using it again, pick up the work card 1 again through the operation interface 4.

[0043] Exemplarily, the UWB positioning tag sends a signal at time t1, the UWB positioning base station receives the signal at time t2, the UWB positioning base station sends a response signal at time t3, and the UWB positioning tag receives the response signal at time t4. The distance formula between the base station and the tag is: (1) Where c is the speed of light.

[0044] The one-way flight time of the signal is: .

[0045] Therefore, the positional relationship between the tag and the base station is that the tag is located on a circle with the base station as the center and the distance d between the two as the radius.

[0046] Therefore, when a tag is positioned between multiple base stations, the tag is located at the intersection of multiple circles with the base station as the center and the distance d between the base stations as the radius.

[0047] The coordinates of positioning base station 1 are (x1, y1), the coordinates of positioning base station 2 are (x2, y2), the coordinates of positioning base station 3 are (x3, y4), and the coordinates of the positioning tag are (x0, y0).

[0048]

[0049]

[0050] Among them, d1, d2, and d3 can be obtained through the distance formula between the base station and the tag. The coordinates of each positioning base station are fixed, and the coordinates of the positioning tag can be obtained.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety control system for personnel positioning data based on UWB, characterized in that: Including UWB positioning tags, UWB positioning base stations, data transmission systems and control centers; The UWB positioning tag is used to transmit UWB signals; The UWB positioning base station is used to receive and process UWB signals; The data transmission system transmits the processed signal to the control center; The control center analyzes the signal and displays relevant personnel information.

2. According to claim 1, a security control system for personnel positioning data based on UWB is characterized in that: The UWB positioning base station includes a UWB positioning outdoor base station and a UWB positioning indoor base station; the UWB positioning outdoor base station and the UWB positioning indoor base station are both connected to a data transmission system.

3. The security control system for personnel positioning data based on UWB according to claim 1 is characterized in that: The data transmission system includes a Poe switch and a convergence switch; the Poe switch is connected to the UWB positioning base station via a network cable; the Poe switch and the convergence switch are connected via a network cable or optical fiber; the convergence switch is connected to the management and control center.

4. The security control system for personnel positioning data based on UWB according to claim 3 is characterized in that: The control center includes a server, a software system and a visualization device; the server is connected to the software system; and the software system is connected to the visualization device.

5. The security control system for personnel positioning data based on UWB according to claim 4 is characterized in that: The aggregation switch is connected to the server via a network cable.

6. The security control system for personnel positioning data based on UWB according to claim 3 is characterized in that: The software system comprises a positioning information unit, a positioning alarm unit and a track query unit; the positioning information unit, the positioning alarm unit and the track query unit are all connected to a convergence switch.

7. The UWB-based personnel location data security management and control system according to claim 6, characterized in that: The positioning alarm unit includes a virtual electronic fence setting unit and an electronic fence alarm unit; the virtual electronic fence setting unit and the electronic fence alarm unit are both connected to the convergence switch.

8. The UWB-based personnel location data security management and control system according to claim 1, characterized in that: The UWB positioning tag is arranged in the working card (1).

9. A security control system for personnel positioning data based on UWB according to claim 8, characterized in that: The safety management and control system further comprises a charging cabinet (2) for charging the working card (1); the charging cabinet (2) is provided with a plurality of charging slots (3), a charging system, an operating interface (4) and an ejection mechanism; the ejection mechanism and the charging system are both connected to the charging slots (3); and the operating interface (4) is connected to the charging system.

10. A method for security control of personnel positioning data based on UWB, characterized in that: The steps include: S1: Allocate UWB positioning tag work cards (1) to workers and build and install UWB positioning base stations; S2: Establish a three-dimensional model of the power plant and import it into the UWB positioning base station; enter the staff information and equipment information into the UWB positioning base station; S3: Signals are transmitted between the UWB positioning tag and the UWB positioning base station to transmit the positioning information to the display screen and mobile terminal in the UWB positioning base station; through search and query on the display screen and mobile terminal, the worker's positioning information and trajectory information are retrieved and transmitted to the control center through the data transmission system; S4: Set up an electronic fence through the control center. When a worker enters the electronic fence, the UWB positioning tag will sound an alarm, and the control center will send a warning and call up the monitoring equipment at the same time; S5: After work, the work card (1) is inserted into the charging slot (3) of the charging cabinet (2) for automatic charging. When it is used again, the work card (1) is collected again through the operation interface (4).

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