Operation safety early warning system and method applied to limited space

Abstract

The invention discloses an operation safety early warning system and method applied to a limited space, and the system is characterized in that the system comprises a wireless communication device, a handheld monitoring terminal, an on-site monitoring terminal, a gas detection module, a server monitoring platform, and a handheld rescue device. Through mutual communication among the wireless communication equipment, the handheld monitoring terminal, the field monitoring terminal, the gas detection module, the server monitoring platform and the handheld rescue equipment, the safety management and control problem of the whole operation process after an operator enters a limited space is solved, and timely early warning and safety rescue for operation danger of the operator are realized; and the operation safety of operators is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction management, and in particular to an operation safety early warning system and method applied to confined spaces. Background Art

[0002] Confined space refers to a limited space with poor ventilation, which is prone to accumulation of toxic and harmful gases and substandard oxygen content, and other harsh environmental conditions. It can only accommodate a limited number of people to enter and perform unconventional and non-continuous operations. When entering a confined space for operation, because of the internal oxygen content is too low, the toxic gas content is too high, the flammable gas exceeds the standard, and other abnormal environmental conditions, coupled with the restricted entrances and exits of the confined space, it is not convenient for internal workers to evacuate quickly, and it is not easy for rescuers to carry out rescue. When dangerous conditions occur, the life safety of workers is difficult to guarantee, which can easily lead to serious consequences. Therefore, it is necessary to monitor the environmental status of confined spaces, detect abnormal conditions in a timely manner, and take corresponding emergency measures.

[0003] The current confined space monitoring method generally involves entering the working environment in advance for inspection. If the environmental data measured within a certain period of time meets the environmental data requirements for entry, the operator can enter the confined space for a short period of time.

[0004] However, this method has the following risks and disadvantages: (1) High risk of preliminary inspection: Workers who enter unfamiliar confined spaces for environmental measurement for the first time face high risks because the conditions in the space may not be completely clear or stable at this time, and there are unknown safety hazards. (2) Insufficient real-time performance: The measurement results are only valid within a specific period of time and lack continuity and real-time performance. This means that after the workers enter the space, if the environmental conditions change (such as gas leakage, temperature change, etc.), they may not be discovered in time, thereby increasing the risk of the operation. (3) Limited warning capability for sudden dangers: Since monitoring is intermittent and relies on human judgment, the system may not be able to respond quickly or issue effective warnings in the event of sudden danger, resulting in the inability of workers to take timely evasive measures. (4) Limited working time: Since it is necessary to measure in advance and wait for the results, the time window for implementing the operation is strictly limited, which not only affects work efficiency, but may also increase the pressure and error rate during the operation due to time pressure. (5) Data accuracy is affected by human factors: The accuracy of the measurement results depends on the professional level and operating specifications of the measurement personnel. There may be human errors or negligence, resulting in inaccurate or misleading data. (6) Lack of continuous monitoring: Once workers enter the space, continuous monitoring of the environment becomes difficult or impossible unless additional monitoring equipment is used, which in turn increases cost and complexity. (7) Inadequate emergency response capabilities: In emergency situations, such as gas leaks, fires, etc., existing regulatory methods may not be able to provide adequate emergency response support, including evacuation instructions, emergency communications, etc. Summary of the invention

[0005] The present invention provides an operation safety warning system and method applied to a confined space, so as to solve the problem of timely warning of operation safety of operators entering the confined space and improve the operation safety of operators.

[0006] According to one aspect of the present invention, there is provided a safety warning system for operations in confined spaces, the system comprising: a wireless communication device, a handheld monitoring terminal, a field monitoring terminal, a gas detection module, a server monitoring platform and a handheld rescue device;

[0007] A wireless communication device for establishing a wireless communication connection between the handheld monitoring terminal, the field monitoring terminal, the gas detection module, the server monitoring platform and the handheld rescue device;

[0008] A handheld monitoring terminal is configured on the operator to obtain the operator's real-time operation scene image and real-time location information, and send the real-time operation scene image and the real-time location information to the server monitoring platform, and receive the warning information sent by the server monitoring platform;

[0009] A field monitoring terminal is installed in the working space, and is used to obtain a real-time spatial scene image of the working space, and send the real-time spatial scene image to the server monitoring platform;

[0010] A gas detection module is installed in the working space and is used to obtain the gas concentration in the working space and send the gas concentration to the server monitoring platform;

[0011] The server monitoring platform is used to obtain the real-time working scene image and the real-time location information of the operator, as well as the real-time space scene image and the gas concentration of the working space, determine the warning information according to the gas concentration, the real-time working scene image and the real-time location information, and send the warning information to the handheld monitoring terminal;

[0012] The handheld rescue device is arranged on the rescuer and is used to obtain the real-time working scene image and the real-time position information of the operator, as well as the early warning information associated with the operator.

[0013] According to another aspect of the present invention, there is provided a method for early warning of work safety in a confined space, characterized in that the method comprises:

[0014] The real-time working scene image and real-time location information of the operator are obtained through a handheld monitoring terminal configured on the operator, and the real-time working scene image and the real-time location information are sent to the server monitoring platform;

[0015] Acquire a real-time spatial scene image of the working space through an on-site monitoring terminal installed in the working space, and send the real-time spatial scene image to a server monitoring platform;

[0016] Acquire the gas concentration of the working space through a gas detection module installed in the working space, and send the gas concentration to the server monitoring platform;

[0017] The server monitoring platform determines warning information according to the gas concentration, the real-time operation scene image and the real-time location information, and sends the warning information to the handheld monitoring terminal and the handheld rescue equipment configured on the rescue personnel.

[0018] The technical solution of the embodiment of the present invention solves the problem of safety control of the entire operation process after the operators enter the confined space through mutual communication among wireless communication equipment, handheld monitoring terminals, on-site monitoring terminals, gas detection modules, server monitoring platforms and handheld rescue equipment, realizes timely warning of the operators' operation hazards and safe rescue, and improves the safety of the operators' operations.

[0019] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 2 is a schematic diagram of a structure of a safety warning system for operations in confined spaces provided according to a first embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of another operation safety warning system applied to a confined space according to an embodiment of the present invention;

[0023] Figure 3 It is a flow chart of a method for early warning of work safety in confined spaces provided according to Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "candidate", "target", etc. in the specification and claims of the present invention 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 data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] Embodiment 1

[0027] Figure 1 The present invention provides a schematic diagram of a structure of a safety warning system for operations in confined spaces. This embodiment is applicable to monitoring the safety status of operators entering confined spaces to perform operations. Figure 1 As shown, the system includes:

[0028] Wireless communication device 110 , handheld monitoring terminal 120 , on-site monitoring terminal 130 , gas detection module 140 , server monitoring platform 150 and handheld rescue device 160 .

[0029] The wireless communication device 110 is used to establish a wireless communication connection between the handheld monitoring terminal 120 , the on-site monitoring terminal 130 , the gas detection module 140 , the server monitoring platform 150 and the handheld rescue device 160 .

[0030] Specifically, the wireless communication device can be a network communication device that communicates based on a traditional data communication network, wireless WiFi, or APN intranet. Through the wireless communication device, a communication connection is established between the handheld monitoring terminal and the server monitoring platform, a communication connection between the field monitoring terminal and the server monitoring platform, a communication connection between the gas detection module and the server monitoring platform, and a communication connection between the handheld rescue device and the server monitoring platform. Optionally, a communication connection can also be established between the handheld monitoring terminal and the gas detection module, or between the handheld monitoring terminal and the handheld rescue device. Communication modules are deployed in each device in the system, and data communication between any two devices can be established at any time through the wireless communication device.

[0031] The handheld monitoring terminal 120 is configured on the operator to obtain the operator's real-time work scene image and real-time location information, and send the real-time work scene image and real-time location information to the server monitoring platform, and receive the early warning information sent by the server monitoring platform.

[0032] Specifically, the handheld monitoring terminal is worn by the operator, and an image acquisition device is configured in the handheld monitoring terminal. When the operator enters a confined working space to work, video monitoring of the operator's current environment is carried out, and the real-time working scene image collected by the image acquisition device is sent to the server monitoring platform, so that the platform can obtain the operator's current scene image in real time; at the same time, a positioning device is configured in the handheld monitoring terminal to obtain the operator's real-time location information, and send the real-time location information to the server monitoring platform.

[0033] The on-site monitoring terminal 130 is installed in the working space, and is used to obtain the real-time spatial scene image of the working space, and send the real-time spatial scene image to the server monitoring platform.

[0034] Specifically, the on-site monitoring terminal includes an image acquisition device for sending real-time spatial scene images in the working space to the server monitoring platform, so that the server monitoring platform can monitor the scene images in the working space in real time to avoid affecting the personal safety of the operators due to sudden events in the work.

[0035] The gas detection module 140 is installed in the working space, and is used to obtain the gas concentration in the working space and send the gas concentration to the server monitoring platform.

[0036] Specifically, the gas detection module is used to detect the concentration of the target gas. The type of the target gas can be determined according to the operation purpose of the confined space. For example, the target gas includes at least oxygen or natural gas. The gas detection module detects the concentration of the target gas in the operation space in real time and sends the gas concentration to the server monitoring platform, so that the server monitoring platform can monitor the gas concentration in the operation space in real time to avoid affecting the operation safety of the operators due to abnormal gas concentration.

[0037] In a feasible embodiment, the gas detection module sends a gas concentration alarm to the handheld monitoring terminal after the gas concentration exceeds a preset concentration range.

[0038] Specifically, the gas detection module sends the gas concentration acquired in real time to the operator's handheld monitoring terminal so that the operator can directly monitor the gas concentration himself. In addition, after the gas detection module detects that the gas concentration exceeds the preset concentration range, it directly sends a gas concentration alarm to the handheld monitoring terminal to avoid the safety hazards caused by the delay in sending the warning of the server monitoring platform.

[0039] The server monitoring platform 150 is used to obtain the real-time work scene image and real-time location information of the workers, as well as the real-time space scene image and gas concentration of the work space, determine the warning information according to the gas concentration, real-time work scene image and real-time location information, and send the warning information to the handheld monitoring terminal.

[0040] Specifically, the server monitoring platform is deployed in the background and is monitored in real time by relevant background personnel. The server monitoring platform obtains the real-time working scene image and real-time location information of the operating personnel, as well as the real-time spatial scene image and gas concentration of the working space. If the gas concentration exceeds the preset normal gas concentration range, an early warning message is generated and sent to the handheld monitoring terminal of the operating personnel, so that the operating personnel can obtain the current space operation safety hazards in time, stop the operation in time, and leave the working space. For example, when the gas concentration exceeds the standard or the oxygen content is not within the standard range, the system automatically triggers an alarm, and sends unsafe behavior alarm information such as "gas exceeds the standard, continue to work", "interruption operation timeout, no detection" to the operating personnel through the handheld terminal, and notifies relevant personnel to deal with potential safety hazards, ensure the safety of the working environment, and prevent accidents.

[0041] The server monitoring platform can also predict whether a dangerous event will occur based on the real-time work scene image and real-time spatial scene image of the operator. If a dangerous event is predicted to occur, an early warning message can be generated and sent to the operator's handheld monitoring terminal. For example, the occurrence of a dangerous event can be predicted based on a deep learning model, and the prediction method is not limited here. For example, the sign performance is determined based on the historical type of dangerous events, and the prediction result of the dangerous event occurrence is determined based on the sign performance in the image.

[0042] In a feasible embodiment, the server monitoring platform superimposes the gas concentration on the real-time spatial scene image through image superposition technology. The real-time image of the operation site and the gas concentration data are provided on one display screen at the same time, which is convenient for operators and supervisors to quickly understand the on-site gas environment conditions, provide an intuitive basis for safety monitoring, and provide data support for subsequent alarm linkage.

[0043] The server monitoring platform can also determine the operation progress of the operator according to the real-time position information of the operator. If the real-time position information is in the middle of the operation space area, it is determined that the operator is in operation; if it is at the edge of the operation space area, it is determined that the operator is in the leaving state; if it is outside the scope of the operation space area, it is determined that the operation is completed. For example, the operation progress can also be determined according to the real-time position information of the operator and the real-time operation scene image.

[0044] In a feasible embodiment, the server monitoring platform generates warning information when it detects that the gas concentration exceeds a preset concentration range;

[0045] And the warning level is determined based on the overlap between the real-time location information and the work point area where the work space is located.

[0046] Specifically, in order to improve the accuracy of the early warning information and the safety level of the workers associated with the early warning information, different levels of safety impact are determined based on the overlap between the real-time location information of the workers and the work point area where the work space is located. For example, if the workers are in the work point area, the safety impact is the greatest and the early warning level is the highest; if the workers are not in the work point area, the safety impact is the smallest and the early warning level is the lowest.

[0047] In a feasible embodiment, determining the warning level according to the overlap between the real-time location information and the work point area where the work space is located includes:

[0048] If the real-time location information is in the middle of the operation point area, the warning level is determined to be the highest level;

[0049] If the real-time location information is at the edge of the operation point area, the warning level is determined to be medium;

[0050] If the real-time location information is outside the operation point area, the warning level is determined to be low;

[0051] Among them, different warning levels correspond to different warning information.

[0052] Specifically, if the real-time location information is in the middle of the work space area, it is determined that the work is in progress and the warning level is determined to be the highest level; if it is at the edge of the work space area, it is determined to be in the leaving state and the warning level is determined to be the medium level; if it is outside the range of the work space area, it is determined that the work is completed and the warning level is determined to be the low level. Among them, different levels of warning information can be different in specific content of the warning information, such as different text information, or different volume and length of the whistle sound.

[0053] Since the operators cannot leave the working space quickly when they are working, the highest level warning will be sent to them to increase their vigilance; when the operators are in the leaving state, it means that they can leave the working space quickly, so a medium level warning will be sent to them; if the operators are in the work completion state, a low level warning will be sent to avoid missing warnings caused by the operators still in the working space due to positioning errors.

[0054] Optionally, after receiving the warning, the operator sends a response to the server monitoring platform to inform the server monitoring platform of the operator's current status. For example, after receiving the warning and leaving the work space, the operator sends a safety response to the server monitoring platform, and the server monitoring platform cancels the warning and stops sending rescue information to the rescuer.

[0055] In a feasible embodiment, the server monitoring platform determines the auxiliary position information of the operator according to the matching result of the real-time operation scene image and the real-time space scene image;

[0056] The server monitoring platform determines the final location information of the operator based on the real-time location information and auxiliary location information.

[0057] Since the positioning may be inaccurate, in this embodiment, the position information is confirmed in combination with the image information to ensure the accuracy of the position information.

[0058] Specifically, the relative position information of the operator in the working space is determined according to the matching results of the real-time working scene image and the real-time spatial scene image as auxiliary position information, and then the final position information is determined according to the combination of the real-time position information and the auxiliary position information. For example, after the relative position information is obtained, the absolute position information corresponding to the relative position information is obtained in combination with the position information of the working space, and the intermediate value of the absolute position information and the real-time position information is used as the final position information.

[0059] For example, if the real-time location information is at the edge of the work area, if the positioning is inaccurate at this time, it will cause an early warning error. Therefore, the real-time location information is corrected in combination with the auxiliary location information to improve the accuracy of the final location information, and the work progress and warning level of the operator are determined based on the final location information.

[0060] The handheld rescue device 160 is arranged on the rescuer and is used to obtain the real-time working scene image and real-time position information of the operator, as well as the warning information associated with the operator.

[0061] Specifically, the handheld rescue device is worn by the rescuer, and is used to obtain the real-time work scene image and real-time location information of the worker in real time through the handheld rescue device when it is determined that the worker is trapped in a confined space and the worker is being rescued. The current specific information of the worker is determined based on the information to facilitate the rescue. Exemplarily, the server monitoring platform generates the worker's work warning information, and then sends the work warning information to the rescuer's handheld rescue device. The rescuer obtains the worker's real-time work scene image and real-time location information based on the work warning information. Optionally, the rescuer can directly obtain the real-time work scene image and real-time location information through the worker's handheld monitoring device to improve the efficiency of information acquisition.

[0062] In a feasible embodiment, after the server monitoring platform sends the warning information to the handheld monitoring terminal, the real-time location information of the operator is determined. If the real-time location information does not leave the work point area within a preset time interval, the real-time work scene image and real-time location information of the operator are sent to the handheld rescue device.

[0063] Specifically, after the server monitoring platform sends the warning information to the operator's handheld monitoring terminal, if the operator has not left the operation point area for a period of time after receiving the warning information, it means that the operator may be in danger, and the real-time operation scene image and real-time location information are sent to the rescuer's handheld rescue device to inform the rescuer to determine the safety of the operator based on the real-time operation scene image and real-time location information. Optionally, subsequent rescuers can directly obtain the real-time operation scene image and real-time location information from the operator's handheld monitoring terminal based on the operator's identity information, avoiding information sending errors on the server monitoring platform and improving the real-time nature of information acquisition.

[0064] The real-time location information of the operating personnel is confirmed through the server monitoring platform, the dispatch efficiency of rescue personnel is improved, and the ineffective dispatch of rescue personnel is reduced for operating personnel with low safety levels who can leave on their own.

[0065] In a feasible embodiment, the server monitoring platform displays the location information of multiple operation spaces on an electronic map, and supports searching and single-point playback of historical operation monitoring information or real-time operation monitoring information of a target operation space on the electronic map.

[0066] Specifically, relevant image information, gas concentration data, warning information, etc. are transmitted to the server monitoring platform through the IoT private network for data storage and analysis, and the location information of all equipment in the working space and the location information of the current operating personnel are displayed on the electronic map. It supports functions such as quick search and single-point playback, realizes remote management and monitoring of related equipment, improves emergency response speed, supports automatic retrieval of corresponding video surveillance and gas concentration data based on personnel location, and provides management with a basis for decision-making on accident analysis, accident tracing and responsibility demarcation.

[0067] In a feasible embodiment, the operation monitoring information includes real-time operation scene images of operators, real-time space scene images of the operation space, gas concentration and warning information.

[0068] The embodiments of the present invention solve the problem of safety control of the entire operation process after the operators enter the confined space through mutual communication among wireless communication equipment, handheld monitoring terminals, on-site monitoring terminals, gas detection modules, server monitoring platforms and handheld rescue equipment, realize timely warning of the operators' operation hazards and safe rescue, and improve the safety of the operators' operations.

[0069] Figure 2 It is a schematic diagram of the structure of another operation safety warning system applied to a confined space provided according to an embodiment of the present invention.

[0070] The system includes four layers: perception layer, network layer, platform layer and application layer. The perception layer includes gas detection modules, such as gas sensors; handheld monitoring terminals and on-site monitoring terminals, such as video cameras, and positioning modules, such as positioning devices in handheld monitoring terminals and on-site monitoring terminals.

[0071] The network layer includes using various networks to establish mutual communication between handheld monitoring terminals, on-site monitoring terminals, gas detection modules, server monitoring platforms and handheld rescue equipment.

[0072] The platform layer includes the use of video service platform and shared protocol platform to establish data interaction between handheld monitoring terminals, field monitoring terminals, gas detection modules, server monitoring platform and handheld rescue equipment.

[0073] The application layer includes early warning applications realized based on data interaction between handheld monitoring terminals, on-site monitoring terminals, gas detection modules, server monitoring platforms and handheld rescue equipment, such as safety risk monitoring, playback of operators' work trajectories, intelligent analysis of operators' work safety, comprehensive monitoring of work points, regional linkage, alarm warning and early warning emergency response.

[0074] The confined space operation safety warning system can realize real-time video monitoring of the entire operation process, and can also be closely linked with gas detection equipment. Once harmful gases are detected exceeding the standard, the alarm mechanism will be activated immediately to ensure the safety of the operation. This avoids the environmental risks of the preliminary inspection, solves the problems of insufficient real-time performance, limited early warning capabilities for sudden dangers, limited working hours, data accuracy affected by human factors, lack of continuous monitoring, and insufficient emergency response capabilities. Through the intelligent monitoring of the system, enterprises can more accurately identify and control the safety risks of the operation site, effectively prevent and resolve the occurrence of major safety accidents involving hazardous chemicals, and play an important role in the safety management of the entire process of special operations and the implementation of the responsibilities of approvers and guardians, providing a solid safety guarantee for the sustainable development of enterprises.

[0075] Embodiment 2

[0076] Figure 3 This is a flowchart of a method for early warning of work safety in confined spaces provided in Embodiment 2 of the present invention. This embodiment is applied to an early warning system for work safety in confined spaces in any of the above embodiments. Figure 3 As shown, the method includes:

[0077] S310, obtaining the real-time working scene image and real-time location information of the working personnel through the handheld monitoring terminal configured on the working personnel, and sending the real-time working scene image and real-time location information to the server monitoring platform;

[0078] S320, obtaining a real-time spatial scene image of the working space through a field monitoring terminal installed in the working space, and sending the real-time spatial scene image to a server monitoring platform;

[0079] S330, obtaining the gas concentration of the working space through a gas detection module installed in the working space, and sending the gas concentration to the server monitoring platform;

[0080] S340, the server monitoring platform determines the warning information according to the gas concentration, the real-time operation scene image and the real-time location information, and sends the warning information to the handheld monitoring terminal and the handheld rescue equipment configured on the rescue personnel.

[0081] Optionally, the server monitoring platform determines warning information based on gas concentration, real-time operation scene images and real-time location information, including:

[0082] When the server monitoring platform detects that the gas concentration exceeds the preset concentration range, it generates an early warning message, and determines the early warning level based on the overlap between the real-time location information and the work point area where the work space is located.

[0083] Optionally, after the server monitoring platform sends the warning information to the handheld monitoring terminal, the method further includes:

[0084] The server monitoring platform determines the real-time location information of the operating personnel. If the real-time location information does not leave the operating point area within a preset time interval, the real-time operating scene image and real-time location information of the operating personnel are sent to the handheld rescue device.

[0085] Optionally, the warning level is determined based on the overlap between the real-time location information and the work point area where the work space is located, including:

[0086] If the real-time location information is in the middle of the operation point area, the warning level is determined to be the highest level;

[0087] If the real-time location information is at the edge of the operation point area, the warning level is determined to be medium;

[0088] If the real-time location information is outside the operation point area, the warning level is determined to be low;

[0089] Among them, different warning levels correspond to different warning information.

[0090] Optionally, the method further includes:

[0091] The server monitoring platform determines the auxiliary position information of the operator based on the matching results of the real-time operation scene image and the real-time space scene image; the server monitoring platform determines the final position information of the operator based on the real-time position information and the auxiliary position information.

[0092] Optionally, the server monitoring platform superimposes the gas concentration on the real-time spatial scene image through image superposition technology.

[0093] Optionally, the method further includes:

[0094] The server monitoring platform displays the location information of multiple operation spaces on an electronic map, and supports searching and single-point playback of historical operation monitoring information or real-time operation monitoring information of a target operation space on the electronic map.

[0095] Optionally, the method further includes:

[0096] The operation monitoring information includes real-time operation scene images of operators, real-time spatial scene images of the operation space, gas concentration and warning information.

[0097] Optionally, after obtaining the gas concentration of the working space through a gas detection module installed in the working space, the method further includes:

[0098] The gas detection module sends a gas concentration alarm to the handheld monitoring terminal after the gas concentration exceeds the preset concentration range.

[0099] The acquisition, storage, use, and processing of data in the technical solution of this application comply with the relevant provisions of national laws and regulations and do not violate public order and good morals.

Claims

1. A safety warning system for confined space operations, characterized in that: The system includes: wireless communication equipment, handheld monitoring terminal, on-site monitoring terminal, gas detection module, server monitoring platform and handheld rescue equipment; A wireless communication device for establishing a wireless communication connection between the handheld monitoring terminal, the field monitoring terminal, the gas detection module, the server monitoring platform and the handheld rescue device; A handheld monitoring terminal is configured on the operator to obtain the operator's real-time operation scene image and real-time location information, and send the real-time operation scene image and the real-time location information to the server monitoring platform, and receive the warning information sent by the server monitoring platform; A field monitoring terminal is installed in the working space, and is used to obtain a real-time spatial scene image of the working space, and send the real-time spatial scene image to the server monitoring platform; A gas detection module is installed in the working space and is used to obtain the gas concentration in the working space and send the gas concentration to the server monitoring platform; The server monitoring platform is used to obtain the real-time working scene image and the real-time location information of the operator, as well as the real-time space scene image and the gas concentration of the working space, determine the warning information according to the gas concentration, the real-time working scene image and the real-time location information, and send the warning information to the handheld monitoring terminal; The handheld rescue device is arranged on the rescuer and is used to obtain the real-time working scene image and the real-time position information of the operator, as well as the early warning information associated with the operator.

2. The system according to claim 1, characterized in that The server monitoring platform generates warning information when detecting that the gas concentration exceeds a preset concentration range; And the warning level is determined according to the overlap between the real-time position information and the working point area where the working space is located.

3. The system according to claim 2, characterized in that After the server monitoring platform sends the warning information to the handheld monitoring terminal, the real-time location information of the operator is determined. If the real-time location information does not leave the work point area within a preset time interval, the real-time work scene image and the real-time location information of the operator are sent to the handheld rescue device.

4. The system according to claim 2, characterized in that Determining the warning level according to the overlap between the real-time location information and the work point area where the work space is located includes: If the real-time location information is in the middle of the operation point area, the warning level is determined to be the highest level; If the real-time location information is at the edge of the operation point area, the warning level is determined to be medium; If the real-time location information is outside the operation point area, the warning level is determined to be low; Among them, different warning levels correspond to different warning information.

5. The system according to any one of claims 2 to 4, characterized in that: The server monitoring platform determines the auxiliary position information of the operator according to the matching result of the real-time operation scene image and the real-time space scene image; The server monitoring platform determines the final location information of the operator based on the real-time location information and the auxiliary location information.

6. The system according to claim 1, characterized in that The server monitoring platform superimposes the gas concentration on the real-time spatial scene image through image superposition technology.

7. The system according to claim 1, characterized in that The server monitoring platform displays location information of multiple operation spaces on an electronic map, and supports searching and single-point playback of historical operation monitoring information or real-time operation monitoring information of a target operation space on the electronic map.

8. The system according to claim 7, characterized in that The operation monitoring information includes a real-time operation scene image of the operator, a real-time space scene image of the operation space, the gas concentration and warning information.

9. The system according to claim 1, characterized in that The gas detection module sends a gas concentration alarm to the handheld monitoring terminal after the gas concentration exceeds a preset concentration range.

10. A method for early warning of work safety in confined spaces, characterized in that: The method includes: The real-time working scene image and real-time location information of the operator are obtained through a handheld monitoring terminal configured on the operator, and the real-time working scene image and the real-time location information are sent to the server monitoring platform; Acquire a real-time spatial scene image of the working space through an on-site monitoring terminal installed in the working space, and send the real-time spatial scene image to a server monitoring platform; Acquire the gas concentration of the working space through a gas detection module installed in the working space, and send the gas concentration to the server monitoring platform; The server monitoring platform determines warning information according to the gas concentration, the real-time operation scene image and the real-time location information, and sends the warning information to the handheld monitoring terminal and the handheld rescue equipment configured on the rescue personnel.

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