Rocket operation site safety monitoring management system and management method

Abstract

The invention discloses a rocket operation site safety monitoring management system and management method, and belongs to the field of rocket operation site safety monitoring management, the rocket operation site safety monitoring management system comprises an intelligent wearable terminal, a UWB positioning base station, an IoT positioning platform and a control center server; the control center server is provided with monitoring general control software; a UWB high-precision positioning technology is utilized to position a worker entering a rocket operation site, and monitoring master control software monitors position information of each wearable terminal in real time and judges whether each intelligent wearable terminal is in an authorized area or not, so that the situation that the worker crosses an operation space area consciously or unconsciously is avoided. According to the invention, accurate positioning and real-time monitoring of the operating personnel can be realized, the operating personnel are ensured to operate within the authority range of respective post, and the risk of safety accidents caused by misjudgment of the area by the operating personnel is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of rocket operation site safety monitoring and management, and in particular to a rocket operation site safety monitoring and management system and a management method. Background Art

[0002] At a complex and high-risk rocket operation site, whether it is the management of flammable and explosive, low-temperature and high-pressure materials during propellant filling operations, the operation of precision instruments during electrical system debugging and testing operations, the control of special equipment during rocket body structure assembly operations, and the management and control of heavy machinery during ground support equipment operation and maintenance operations, coupled with high-demand tasks such as comprehensive testing operations before rocket launch involving the coordination of multiple systems, the personal safety of operators is always the primary consideration in production safety management.

[0003] At present, the safety management measures at the rocket operation site mainly include physical isolation and manual supervision. In terms of physical isolation, the operation area is divided into different sub-areas by setting up cordons and warning signs to warn and restrict the range of personnel activities. Manual supervision is to arrange full-time safety managers to patrol the operation site and judge whether the range of activities of the position operators is in compliance with the regulations based on the position type of the operators and the safety training experience received.

[0004] However, the areas divided by physical isolation are not detailed enough and cannot accurately match the requirements of different job safety levels and types. This may cause some operators to mistakenly enter dangerous areas due to unclear area divisions, or affect work efficiency in unnecessary restricted areas. Manual supervision relies on the safety education knowledge, attention and judgment of the safety administrator, and cannot guarantee real-time and continuous monitoring of each operator. When there are many people on the job site and the work tasks are complex, supervision gaps are prone to occur, so that the operator's cross-border behavior cannot be discovered and stopped in time, causing safety hazards.

[0005] In view of this, it is necessary to provide a new technical solution to solve the above problems. Summary of the invention

[0006] In order to solve the above-mentioned technical problems, the present application provides a rocket operation site safety monitoring management system and management method, which can realize accurate positioning and real-time monitoring of operating personnel, ensure that operating personnel operate within the scope of their respective job authority, and effectively reduce the risk of safety accidents caused by operating personnel misjudgment of the area.

[0007] A rocket operation site safety monitoring and management system, comprising: A smart wearable terminal; the smart wearable terminal internally integrates a UWB positioning tag that sends a uniquely coded information identifying the terminal to the surrounding space at a fixed frequency; the smart wearable terminal is equipped for each staff member entering the rocket operation site; UWB positioning base station; the UWB positioning base station is pre-fixedly arranged at the operation site of the rocket operation plant, and is used to receive the pulse signal sent by the UWB positioning tag; IoT positioning platform; the IoT positioning platform has a built-in real-time positioning algorithm for receiving data from the UWB positioning base station and calculating the location coordinate information of the smart wearable terminal; and Control center server; the control center server is provided with monitoring master control software; the control center server is used to store the authority information of each operator, monitor the location information of each wearable terminal in real time and determine whether each smart wearable terminal is in an authorized area.

[0008] Preferably, the smart wearable terminal also includes a communication module for data communication interaction with the monitoring master control software; the UWB positioning tag sends an uplink UWB positioning pulse signal containing coded information that uniquely identifies the terminal to the surrounding space at a frequency of 500 Hz.

[0009] Preferably, the smart wearable terminal also includes an alarm device for issuing a warning when the operator exceeds the authorized area.

[0010] Preferably, there are no less than 4 UWB positioning base stations; any three or more UWB positioning base stations are not arranged in a co-linear manner.

[0011] Preferably, the positioning base station is internally provided with a clock module and a signal processing module for accurately measuring key parameters including the arrival time, arrival angle, and arrival phase of the pulse signal, thereby providing support for obtaining high-precision positioning data.

[0012] Preferably, the real-time positioning algorithm calculates the position coordinate information of the smart wearable terminal using a least squares estimation algorithm based on the coordinates of each UWB positioning base station and the time when each UWB positioning base station receives the wearable terminal positioning pulse signal.

[0013] Preferably, the monitoring master control software has a database management system; the database management system is used to store information including each operator's name, work number, position, qualification certificate, safety compliance log, safety violation log, and work site action trajectory, and can achieve a unique correspondence between the smart wearable terminal and the operator.

[0014] Preferably, the monitoring and control software divides the operation site into multiple sub-areas and sets corresponding numbers according to the operation safety level and operation type of the rocket operation site, and stores the vertex coordinates of the sub-areas in a database; the monitoring and control software sets the authority of one or more sub-areas that each smart wearable terminal can enter.

[0015] Preferably, the monitoring master control software also has the function of analyzing and recording the safety behavior information of the operators, and monitors the location information of each wearable terminal and the safety-related behavior of the operators in real time; for smart wearable terminals that approach and enter unauthorized areas, the monitoring master control software sends warning information to the corresponding terminal.

[0016] According to another aspect of the present application, a rocket operation site safety monitoring management method is also provided, and the rocket operation site safety monitoring management system is used to perform rocket operation site safety monitoring management, including: When operators wear smart wearable terminals to enter the rocket operation site, the UWB positioning tag automatically and periodically sends UWB positioning pulse signals; The UWB positioning base station continuously receives the pulse signal sent by each smart wearable terminal, and uses the internal clock measurement module to obtain the arrival time data including the pulse signal arriving at the UWB positioning base station, and transmits the arrival time data to the IoT positioning platform in real time; The IoT positioning platform receives the arrival time data from the UWB positioning base station, uses the real-time positioning algorithm to solve the position coordinates of each smart wearable terminal, obtains the position coordinate information of the smart wearable terminal at the work site, and transmits the position coordinate information and the corresponding smart wearable terminal number to the monitoring master control software in real time; After the monitoring master control software receives the location coordinate information and the corresponding smart wearable terminal number information, it retrieves the sub-area range set authorized by the terminal from the database through the wearable terminal number, and uses the sub-area vertex coordinates and the location coordinates calculated by the IoT positioning platform to determine in real time whether it is within the authorized area based on the vector cross product method.

[0017] Compared with the prior art, this application has at least the following beneficial effects: 1. The present invention can realize accurate positioning and real-time monitoring of operating personnel, ensuring that operating personnel operate within the scope of their respective job authority, and effectively reducing the risk of safety accidents caused by operating personnel misjudging the area.

[0018] 2. The present invention uses UWB positioning technology to achieve centimeter-level or even higher precision positioning. Compared with the traditional method of setting warning line area division and manual supervision, it greatly improves the accuracy and reliability of monitoring the position of operators.

[0019] 3. The present invention can monitor the operators in real time and continuously without continuous manual attention, thus avoiding the omissions of traditional manual supervision. Once an abnormal situation occurs, the alarm and recording functions can be automatically triggered, thus improving the efficiency and timeliness of safety management.

[0020] 4. The present invention comprehensively records the safety behavior information of the operators, including out-of-zone behavior, approaching dangerous equipment, etc., providing recorded data for subsequent in-depth understanding of the safety status of the work site, and providing a strong data basis for subsequent safety management measures such as optimizing the work process, adjusting the authorized area, and strengthening safety education.

[0021] 5. The present invention reduces the reliance on manual supervision, reduces the cost and error of manual supervision, realizes automated and intelligent safety management, enables safety managers to focus more on analyzing data and formulating preventive measures, and improves the overall safety management efficiency and quality of rocket operation sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 A schematic diagram of the system composition of the rocket operation site safety monitoring and management system of the present invention; Figure 2 This is a schematic diagram of the deployment of positioning base stations in the rocket operation site safety monitoring and management system of the present invention; Figure 3 It is a relationship diagram between the midpoints and the convex polygon positions of the rocket operation site safety monitoring and management system of the present invention; Figure 4 This is a relationship diagram between the midpoints and non-convex polygon positions of the rocket operation site safety monitoring and management system of the present invention.

[0023] The above drawings include the following reference numerals: 10. Smart wearable terminal; 20. UWB positioning base station; 30. IoT positioning platform; 40. Control center server. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0025] like Figure 1 As shown, a rocket operation site safety monitoring and management system includes: a smart wearable terminal 10, a UWB positioning base station 20, an IoT positioning platform 30 and a control center server 40; The smart wearable terminal 10 is internally integrated with a UWB positioning tag that sends a UWB positioning tag containing coding information that uniquely identifies the terminal to the surrounding space at a fixed frequency; the smart wearable terminal 10 is equipped for each staff member entering the rocket operation site; The UWB positioning base station 20 is pre-fixedly arranged at the operation site of the rocket operation plant, and is used to receive the pulse signal sent by the UWB positioning tag; The IoT positioning platform 30 has a built-in real-time positioning algorithm for receiving data from the UWB positioning base station 20 and calculating the position coordinate information of the smart wearable terminal 10; and The control center server 40 is provided with a monitoring master control software; the control center server 40 is used to store the authority information of each operator, monitor the location information of each wearable terminal in real time and determine whether each smart wearable terminal 10 is in an authorized area.

[0026] Specifically, UWB positioning base station 20: multiple UWB positioning base stations 20 are pre-fixed and arranged at the operation site of the rocket operation plant. The UWB positioning base station 20 adopts advanced signal reception and measurement technology, and can stably receive the pulse signal sent by the UWB positioning tag in the smart wearable terminal 10. The UWB positioning base station 20 is internally provided with a high-precision clock module and a signal processing module, which are used to accurately measure the key parameters of the pulse signal such as the arrival time, arrival angle, and arrival phase, thereby providing support for obtaining high-precision positioning data.

[0027] Among them, UWB (Ultra Wide Band) technology is a new type of wireless communication technology. The positioning technology based on UWB has centimeter-level high-precision positioning capabilities.

[0028] Smart wearable terminal 10: Each staff member entering the rocket operation site is equipped with a smart wearable terminal 10, which has an integrated UWB positioning tag. The UWB positioning tag sends an uplink UWB positioning pulse signal to the surrounding space at a frequency of 500Hz. The signal contains coded information that uniquely identifies the terminal. The smart wearable terminal 10 also has a communication module for data communication interaction with the monitoring master control software on the control center server 40. In addition, the smart wearable terminal 10 is equipped with sound, light, and tactile alarm devices to issue warnings when the operator exceeds the authorized area.

[0029] IoT positioning platform 30: The IoT positioning platform 30 is connected to the UWB positioning base station 20 through wired or wireless communication, and receives measurement data from each UWB positioning base station 20. The IoT positioning platform 30 has a built-in real-time positioning algorithm, which uses the least squares estimation algorithm to calculate the position coordinate information of the smart wearable terminal 10 based on the coordinates of each UWB positioning base station 20 and the time when each positioning base station receives the wearable terminal positioning pulse signal.

[0030] Among them, the IoT positioning platform 30 is a system platform based on the Internet of Things technology, which is mainly used to determine and track the location information of Internet of Things devices.

[0031] Control center server 40: The control center server 40 is provided with monitoring master control software and is the core management part of the entire system.

[0032] The monitoring and control software has a database management system for storing information such as each operator's name, work number, position, qualification certificate, safety compliance log, safety violation log, and work site movement trajectory, and at the same time establishes a unique corresponding relationship between the smart wearable terminal 10 and the operator.

[0033] In addition, according to the operation safety level and operation type of the rocket operation site, the operation site is divided into multiple sub-areas and corresponding numbers are set, and the vertex coordinates of the sub-areas are stored in the database of the monitoring master control software. The monitoring master control software sets one or more sub-areas that each smart wearable terminal 10 is authorized to enter.

[0034] At the same time, the monitoring master control software can receive the location coordinate information of each smart wearable terminal 10 transmitted by the IoT positioning platform 30 in real time, and compare each smart wearable terminal 10 with the corresponding preset authorized sub-area through the vector cross product algorithm.

[0035] In addition, the monitoring and control software also has the function of analyzing and recording the safety behavior information of the operators, and can monitor the location information of each wearable terminal and various safety-related behaviors of the operators in real time, such as whether they are approaching or entering the unauthorized area. For the smart wearable terminal 10 approaching or entering the unauthorized area, the monitoring and control software sends a warning message to the corresponding terminal.

[0036] It should be noted that the base station cannot be moved at will after being arranged in the operation plant. If it is moved, the position coordinates of each positioning base station need to be re-measured and calibrated. At the same time, in order to improve the effectiveness and accuracy of positioning, the number of UWB positioning base stations 20 deployed is not less than 4, and its arrangement is not limited to the factory boundary. Any three or more UWB positioning base stations are not collinearly arranged, such as Figure 2 shown.

[0037] Corresponding to this solution, when conducting safety monitoring and management of rocket operation sites, solutions combining Bluetooth low energy (BLE) positioning technology and visual recognition technology, solutions based on Zigbee communication protocol technology, and improved manual supervision and electronic recording solutions can also be used.

[0038] Combining Bluetooth Low Energy (BLE) positioning technology with visual recognition technology: BLE positioning technology can achieve regional positioning by deploying multiple beacons at the work site, but the BLE positioning accuracy is relatively low, and it needs to be combined with visual recognition technology to use the camera at the work site to identify and track the workers. However, this method is greatly affected by factors such as ambient light and obstructions, and the complexity and computational complexity of the visual recognition algorithm are high, which may affect the real-time performance and stability of the system.

[0039] Solution based on Zigbee communication protocol technology: Use Zigbee communication protocol technology to achieve personnel positioning and area monitoring. Deploy Zigbee nodes at the work site, and operators carry Zigbee terminal devices. Zigbee technology has the advantages of low power consumption and self-organizing network, but it is usually not as accurate as UWB technology in positioning, and may not meet the requirements of high-precision positioning at the rocket operation site. In addition, for complex work site environments, the stability of Zigbee signals may be affected, resulting in inaccurate positioning.

[0040] Improved manual supervision and electronic recording scheme: On the basis of the original manual supervision, safety managers are equipped with electronic devices, such as tablet computers, to record the location and behavior information of operators. When operators are found to have crossed the line or engaged in unsafe behavior, relevant information is manually input for recording. However, this method still relies on manual active observation and operation, which cannot avoid human negligence, and has poor real-time performance, and cannot promptly discover and handle sudden safety issues.

[0041] As a similar inventive concept, a rocket operation site safety monitoring and management method is also provided, which is characterized in that the rocket operation site safety monitoring and management system is used to perform rocket operation site safety monitoring and management, including: The operator wears the smart wearable terminal 10 and enters the rocket operation site, and the UWB positioning tag automatically and periodically sends UWB positioning pulse signals; The UWB positioning base station 20 continuously receives the pulse signal sent by each smart wearable terminal 10, and uses the internal clock measurement module to obtain the arrival time data including the pulse signal arriving at the UWB positioning base station 20, and transmits the arrival time data to the IoT positioning platform 30 in real time; The IoT positioning platform 30 receives the arrival time data from the UWB positioning base station 20, and uses the real-time positioning algorithm to solve the position coordinates of each smart wearable terminal 10, obtains the position coordinate information of the smart wearable terminal 10 at the work site, and transmits the position coordinate information and the corresponding smart wearable terminal 10 number to the monitoring master control software in real time; After the monitoring master control software receives the location coordinate information and the corresponding smart wearable terminal 10 number information, it retrieves the sub-area range set authorized by the terminal from the database through the wearable terminal number, based on the sub-area vertex coordinates and the location coordinates calculated by the IoT positioning platform 30, and determines in real time whether it is within the authorized area based on the vector cross product method.

[0042] Furthermore, if the operator is in the authorized area and the behavior complies with safety regulations, the system continues to operate normally. If the operator exceeds the authorized area or his behavior violates the safety regulations, the monitoring and control software sends instructions to the smart wearable terminal 10 on the one hand, triggering the alarm module built into the terminal to issue a warning, such as a sound alarm, vibration prompt or flashing light, etc., to remind the operator to return to the authorized area in time or correct the unsafe behavior. On the other hand, the monitoring and control software will record the operator's out-of-zone behavior or unsafe behavior information, including the operator's identity information, the time of the behavior, the specific location, the type of behavior, etc. These recorded data will be stored in the database to provide a basis for subsequent safety analysis and management decisions.

[0043] The above-mentioned judgment rule for real-time judgment of whether it is within the authorized area based on the vector cross product method is as follows: For any two-dimensional region, the vertices of the marked region form a convex polygon <m1-m2-m3-m4>,like Figure 3 As shown. According to the pre-planned area, the convex polygon vertices are known<M1、M2、M3、M4> Coordinates and target points measured by IoT positioning platform 30 Coordinates, starting from each vertex of the convex polygon to the target point, form a vector set S1, and the four vertices are connected in clockwise order to form a vector set S2. Each vector in the vector set S1 and the corresponding vector in the vector S2 with a common starting point (for example) are vector cross-products to obtain 4 scalar values. If all 4 scalar values ​​are greater than 0, it indicates that the target point P is in the point set<M1、M2、M3、M4> Otherwise, it is outside the convex polygon (such as point Q).

[0044] If the region does not form a convex polygon <n1-n2-n3-n4-n5>, then add auxiliary lines to construct two or more convex polygons, and then use the vector cross product method to calculate, such as Figure 4 shown.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0048] The above description is only a preferred embodiment of the present invention and is 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 rocket operation site safety monitoring and management system, characterized in that: include: A smart wearable terminal; the smart wearable terminal internally integrates a UWB positioning tag that sends a uniquely coded information identifying the terminal to the surrounding space at a fixed frequency; the smart wearable terminal is equipped for each staff member entering the rocket operation site; UWB positioning base station; the UWB positioning base station is pre-fixedly arranged at the operation site of the rocket operation plant, and is used to receive the pulse signal sent by the UWB positioning tag; IoT positioning platform; the IoT positioning platform has a built-in real-time positioning algorithm for receiving data from the UWB positioning base station and calculating the position coordinate information of the smart wearable terminal; as well as Control center server; the control center server is provided with monitoring master control software; the control center server is used to store the authority information of each operator, monitor the location information of each wearable terminal in real time and determine whether each smart wearable terminal is in an authorized area.

2. The rocket operation site safety monitoring and management system according to claim 1, characterized in that: The smart wearable terminal also includes a communication module for data communication interaction with the monitoring master control software; the UWB positioning tag sends an uplink UWB positioning pulse signal containing coding information that uniquely identifies the terminal to the surrounding space at a frequency of 500 Hz.

3. The rocket operation site safety monitoring and management system as claimed in claim 2, characterized in that: The smart wearable terminal also includes an alarm device for issuing a warning when the operator exceeds the authorized area.

4. The rocket operation site safety monitoring and management system as claimed in claim 1, characterized in that: The number of the UWB positioning base stations is no less than 4; any three or more UWB positioning base stations are non-collinearly arranged.

5. The rocket operation site safety monitoring and management system as claimed in claim 4, characterized in that: The positioning base station is internally provided with a clock module and a signal processing module for accurately measuring key parameters including the arrival time, arrival angle, and arrival phase of the pulse signal, thereby providing support for obtaining high-precision positioning data.

6. The rocket operation site safety monitoring and management system as claimed in claim 5, characterized in that: The real-time positioning algorithm uses a least squares estimation algorithm to calculate the position coordinate information of the smart wearable terminal based on the coordinates of each UWB positioning base station and the time when each UWB positioning base station receives the wearable terminal positioning pulse signal.

7. The rocket operation site safety monitoring and management system as claimed in claim 6, characterized in that: The monitoring master control software is equipped with a database management system; the database management system is used to store information including the name, work number, position, qualification certificate, safety compliance log, safety violation log, and action trajectory of each operator, and can achieve a unique correspondence between the smart wearable terminal and the operator.

8. The rocket operation site safety monitoring and management system as claimed in claim 7, characterized in that: The monitoring master control software divides the operation site into multiple sub-areas and sets corresponding numbers according to the operation safety level and operation type of the rocket operation site, and stores the vertex coordinates of the sub-areas in a database; the monitoring master control software sets the authority of one or more sub-areas that each smart wearable terminal can enter.

9. The rocket operation site safety monitoring and management system as claimed in claim 8, characterized in that: The monitoring master control software also has the function of analyzing and recording the safety behavior information of the operators, and monitors the location information of each wearable terminal and the safety-related behavior of the operators in real time; For smart wearable terminals that approach or enter unauthorized areas, the monitoring master control software sends warning information to the corresponding terminals.

10. A rocket operation site safety monitoring and management method, characterized in that: The rocket operation site safety monitoring and management system according to any one of claims 1 to 9 is used to perform rocket operation site safety monitoring and management, comprising: When operators wear smart wearable terminals and enter the rocket operation site, the UWB positioning tag automatically and periodically sends UWB positioning pulse signals; The UWB positioning base station continuously receives the pulse signal sent by each smart wearable terminal, and uses the internal clock measurement module to obtain the arrival time data including the pulse signal arriving at the UWB positioning base station, and transmits the arrival time data to the IoT positioning platform in real time; The IoT positioning platform receives the arrival time data from the UWB positioning base station, uses the real-time positioning algorithm to solve the position coordinates of each smart wearable terminal, obtains the position coordinate information of the smart wearable terminal at the work site, and transmits the position coordinate information and the corresponding smart wearable terminal number to the monitoring master control software in real time; After the monitoring master control software receives the location coordinate information and the corresponding smart wearable terminal number information, it retrieves the sub-area range set authorized by the terminal from the database through the wearable terminal number, and uses the sub-area vertex coordinates and the location coordinates calculated by the IoT positioning platform to determine in real time whether it is within the authorized area based on the vector cross product method.

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