Operation safety monitoring method and system based on UWB positioning card

Abstract

The invention belongs to the technical field of safety monitoring, and discloses an operation safety monitoring method and system based on a UWB positioning card. The method comprises the following steps: acquiring real-time position information and real-time acceleration information of a target monitoring person; when it is judged that the variation of the real-time position information and the variation of the real-time pose information in a first preset time period do not exceed corresponding threshold values, a health monitoring instruction is issued to a UWB positioning card; or, when it is judged that the variable quantity of the real-time acceleration information in the first preset time period is not smaller than the corresponding threshold value, a falling inquiry instruction is issued to the UWB positioning card; and when it is judged that the real-time health monitoring data is abnormal, or when to-be-rescued feedback used for responding to the falling inquiry instruction is obtained, an assistance instruction and real-time position information of a target monitoring person are periodically issued to the nearest UWB positioning card, and an assistance request and the real-time position information are reported to the master control end at the same time until an assistance response is obtained. According to the invention, the personal safety of personnel can be effectively monitored.

Description

Technical Field

[0001] The present invention relates to the technical field of safety monitoring, and particularly to an operation safety monitoring method and system based on a UWB positioning card. Background Art

[0002] In dangerous working environments such as coal mines, chemical industries, petroleum industries, and metallurgical industries, how to ensure the personal safety of workers has important practical significance.

[0003] Real-time positioning of workers based on UWB (UltraWide Band) positioning cards is a commonly used means for personal safety protection in various existing dangerous working environments. In specific implementation, since the ultra-wideband positioning technology adopted by the UWB positioning card uses intermittent pulses to send data, the pulses are extremely narrow, and the power density within the unit frequency band is quite low, so the communication interference to other devices can be ignored. At the same time, the power consumption of the UWB positioning system can be made very low, so the battery life of the UWB positioning card also has great superiority compared with traditional wireless devices. Therefore, the impact of UWB positioning technology on other devices is minimal. Moreover, the bandwidth used by the UWB positioning card is above 1 GHz, and can even be as high as several GHz. At this time, the duration of each UWB signal sent is very short. Therefore, the UWB system has a large capacity and can accommodate hundreds of UWB positioning cards to work simultaneously. Furthermore, high-precision positioning of multiple workers can be achieved simultaneously.

[0004] However, as can be seen from the above technology, currently only the positioning and tracking of personnel in dangerous environments are carried out, but the further specific states of the personnel cannot be tracked; thus, the personal safety of the personnel cannot be effectively ensured. Summary of the Invention

[0005] The purpose of the present invention is to provide an operation safety monitoring method based on a UWB positioning card to solve the technical problem that only the position tracking of personnel is carried out in the existing dangerous working environment without being able to confirm the specific states of the personnel.

[0006] To achieve the above object, the present invention proposes the following technical solutions:

[0007] In a first aspect, the present technical solution provides an operation safety monitoring method based on a UWB positioning card, which is carried out based on the worn UWB positioning card, wherein the UWB positioning card is integrated with an IMU sensor; the method includes:

[0008] Obtain the real-time position information of the target monitored person obtained based on the UWB ranging process at a first frequency, as well as the real-time pose information of the target monitored person and the real-time acceleration information in the vertical direction obtained based on the IMU sensor;

[0009] When it is determined that the change amount of the real-time position information and the change amount of the real-time position and attitude information within the first preset period do not exceed the corresponding first thresholds, a health monitoring instruction is sent to the UWB positioning card; or, when it is determined that the change amount of the real-time acceleration information within the first preset period is not less than the corresponding second threshold, a fall inquiry instruction is sent to the UWB positioning card;

[0010] Wherein, the health monitoring instruction is used to control the UWB positioning card to establish communication with a health monitoring device worn by a target monitored person, and based on the UWB positioning card, synchronously report the real-time health monitoring data of the target monitored person at a first frequency within a second preset period; wherein, the real-time health monitoring data includes: real-time heart rate, real-time blood oxygen saturation; wherein, the fall inquiry instruction is at least one of a text instruction or a voice instruction;

[0011] When it is determined that the real-time health monitoring data is abnormal, or when a rescue feedback for responding to the fall inquiry instruction is obtained, an assistance instruction and the real-time position information of the target monitored person are periodically sent to the UWB positioning card closest to the position of the UWB positioning card, and at the same time, an assistance request and the real-time position information of the target monitored person are periodically reported to the total control end until an assistance response from the nearest UWB positioning card and / or the total control end is obtained;

[0012] Wherein, the rescue feedback is a positive feedback of the target monitored person to the fall inquiry instruction, or a system automatic feedback triggered passively when the target monitored person does not respond to the fall inquiry instruction within a preset duration.

[0013] Further, after obtaining the real-time position information of the target monitored person based on the UWB ranging process at the first frequency, and the real-time position and attitude information of the target monitored person and the real-time acceleration information in the vertical direction based on the IMU sensor, it further includes:

[0014] When it is determined that the real-time position information coincides with a preset electronic fence, an alarm instruction is sent to the UWB positioning card;

[0015] Wherein, the electronic fence is a prohibited entry area, and the alarm instruction is used to remind the target monitored person to leave the area where they are located;

[0016] When an alarm feedback is obtained to confirm that the target monitored person enters the electronic fence for legitimate reasons, a health monitoring instruction is sent to the UWB positioning card to synchronously obtain the real-time health monitoring data of the target monitored person.

[0017] Further, after obtaining the real-time position information of the target monitored person based on the UWB ranging process at the first frequency, and the real-time pose information of the target monitored person and the real-time acceleration information in the vertical direction based on the IMU sensor, it further includes:

[0018] When it is determined that the change amount of the real-time position information and the change amount of the real-time pose information within the first preset time period both exceed the corresponding first threshold but do not exceed the corresponding second threshold, a health warning instruction is sent to the UWB positioning card;

[0019] Among them, the health warning instruction is used to inquire whether there is any abnormality in the body of the target monitored person, and obtain the real-time pose information of the target monitored person and the real-time acceleration information in the vertical direction at the second frequency within the time interval between the issuance and response of the health warning instruction; among them, the first threshold is greater than the second threshold, and the second frequency is greater than the first frequency.

[0020] Further, before obtaining the real-time position information of the target monitored person based on the UWB ranging process at the first frequency, and the real-time pose information of the target monitored person and the real-time acceleration information in the vertical direction based on the IMU sensor; it further includes:

[0021] Obtain the personal information of the target monitored person that is bound to the UWB positioning card one by one; among them, the personal information includes name, department, shift, and whether health monitoring or fall inquiry has been triggered within the third preset time period before.

[0022] When it is determined that the target monitored person has triggered health monitoring or fall inquiry within the third preset time period before, a health certificate instruction is sent; among them, the health certificate instruction is used to obtain a health certificate file once within the time interval between the time point when the health monitoring or fall inquiry is triggered and the time point when the health certificate instruction is sent.

[0023] When it is determined that the physical state of the target monitored person is operating, unlock the UWB positioning card to allow it to perform operations; otherwise, lock the UWB positioning card and report an abnormal operation feedback to the total control terminal.

[0024] Further, it includes:

[0025] Summarize the historical position information corresponding to each target monitored person's trigger of fall inquiry within the fourth preset time period before.

[0026] Extract the historical position information with the total number of trigger of fall inquiry greater than the preset number as high-frequency position information;

[0027] Retrieve the historical image data of each target monitoring personnel at each time when the high-frequency position information obtained based on the camera triggers a fall inquiry;

[0028] Perform background difference processing and edge detection on the historical image data to determine that when the ambient light brightness is lower than the preset brightness value or there is a dangerous placement of the device, report a rectification request to the total control terminal.

[0029] In a second aspect, the present technical solution provides an operation safety monitoring system based on a UWB positioning card, which is carried out based on the worn UWB positioning card. Among them, the UWB positioning card is integrated with an IMU sensor; it includes:

[0030] A first acquisition module, configured to acquire the real-time position information of the target monitoring personnel obtained based on the UWB ranging process at a first frequency, as well as the real-time pose information of the target monitoring personnel and the real-time acceleration information in the vertical direction obtained based on the IMU sensor;

[0031] A first judgment module, configured to issue a health monitoring instruction to the UWB positioning card when it is determined that the change amount of the real-time position information and the change amount of the real-time pose information do not exceed the corresponding first thresholds within a first preset time period; or, when it is determined that the change amount of the real-time acceleration information is not less than the corresponding second threshold within a first preset time period, issue a fall inquiry instruction to the UWB positioning card;

[0032] Among them, the health monitoring instruction is used to control the UWB positioning card to establish communication with the health monitoring device worn by the target monitoring personnel, and based on the UWB positioning card, synchronously report the real-time health monitoring data of the target monitoring personnel at a first frequency within a second preset time period; among them, the real-time health monitoring data includes: real-time heart rate, real-time blood oxygen saturation; among them, the fall inquiry instruction is at least one of a text instruction or a voice instruction;

[0033] A second judgment module, configured to periodically issue an assistance instruction and the real-time position information of the target monitoring personnel to the UWB positioning card closest to the position of the UWB positioning card when it is determined that the real-time health monitoring data is abnormal or when obtaining a rescue feedback for responding to the fall inquiry instruction, and at the same time periodically report an assistance request and the real-time position information of the target monitoring personnel to the total control terminal until an assistance response from the closest UWB positioning card and / or the total control terminal is obtained;

[0034] Among them, the rescue feedback is a positive feedback of the target monitoring personnel to the fall inquiry instruction, or a system automatic feedback triggered passively when the target monitoring personnel does not respond to the fall inquiry instruction within a preset time period.

[0035] Further, it includes:

[0036] A third judgment module, configured to issue an alarm instruction to the UWB positioning card when it determines that the real-time position information coincides with a preset electronic fence;

[0037] Wherein, the electronic fence is a prohibited entry area, and the alarm instruction is used to remind the target monitoring personnel to leave the area where they are located;

[0038] A second acquisition module, configured to issue a health monitoring instruction to the UWB positioning card to synchronously acquire the real-time health monitoring data of the target monitoring personnel when obtaining an alarm feedback to confirm that the target monitoring personnel enter the electronic fence for legitimate reasons.

[0039] Furthermore, it includes:

[0040] A fourth judgment module, configured to issue a health warning instruction to the UWB positioning card when it determines that both the change amount of the real-time position information and the change amount of the real-time pose information exceed corresponding first thresholds but do not exceed corresponding second thresholds within a first preset time period;

[0041] Wherein, the health warning instruction is used to inquire whether the target monitoring personnel have any physical abnormalities, and to acquire the real-time pose information and the real-time acceleration information in the vertical direction of the target monitoring personnel at a second frequency within the time interval between the issuance and response of the health warning instruction; wherein, the first threshold is greater than the second threshold, and the second frequency is greater than the first frequency.

[0042] In a third aspect, the present technical solution provides an electronic device, including at least one processor, the processor is coupled to a memory, and a computer program is stored in the memory, and the computer program is configured to execute the method when being run by the processor.

[0043] In a fourth aspect, the present technical solution provides a computer-readable storage medium, on which a computer program is stored, and the computer program is used to be executed by a processor to implement the method.

[0044] Beneficial effects:

[0045] As can be seen from the above technical solutions, the technical solution of the present invention provides a job safety monitoring method based on a UWB positioning card to improve the technical defect that the health status of personnel cannot be effectively monitored in the prior art.

[0046] Specifically, considering the advantages of UWB technology in communication, to ensure that other devices are not affected during health monitoring, reduce the data processing process (such as denoising to improve data accuracy, etc.), and ensure the smoothness of monitoring data reporting, instruction issuing, and feedback. The entire solution is set based on the UWB positioning card, and other health-related monitoring data and monitoring instructions are synchronously carried during the positioning data reporting of the UWB positioning card and the instruction interaction for it.

[0047] Considering two high-frequency situations of abnormal personnel health, one is the fall abnormality in a dangerous environment, and the other is the movement abnormality caused by the abnormal physical condition of the person himself. In order to effectively monitor these two abnormalities. This technical solution includes: First, obtain the real-time position information of the target monitored person obtained based on the UWB ranging process at the first frequency, as well as the real-time pose information of the target monitored person and the real-time acceleration information in the vertical direction obtained based on the IMU sensor. Secondly, when it is judged that the change amount of the real-time position information and the change amount of the real-time pose information do not exceed the corresponding first thresholds within the first preset period, a health monitoring instruction is sent to the UWB positioning card; or, when it is judged that the change amount of the real-time acceleration information is not less than the corresponding second threshold within the first preset period, a fall inquiry instruction is sent to the UWB positioning card. Wherein, the health monitoring instruction is used to control the UWB positioning card to establish communication with the health monitoring device worn by the target monitored person, and based on the UWB positioning card, synchronously report the real-time health monitoring data of the target monitored person at the first frequency within the second preset period; wherein, the real-time health monitoring data includes: real-time heart rate, real-time blood oxygen saturation; wherein, the fall inquiry instruction is at least one of a text instruction or a voice instruction. Then, when it is judged that the real-time health monitoring data is abnormal, or when obtaining the rescue feedback to be used to respond to the fall inquiry instruction, the assistance instruction and the real-time position information of the target monitored person are periodically sent to the UWB positioning card closest to the position of the UWB positioning card, and at the same time, the assistance request and the real-time position information of the target monitored person are periodically reported to the total control end until the assistance response of the closest UWB positioning card and / or the total control end is obtained. Wherein, the rescue feedback to be used is the positive feedback of the target monitored person to the fall inquiry instruction, or the system automatic feedback triggered passively when the target monitored person does not respond to the fall inquiry instruction within the preset duration. Thus, it can be seen that in order to realize the monitoring of the movement abnormality caused by the abnormal physical condition of the person himself, this technical solution takes into account that during normal walking, the posture and position of the person will both move. Therefore, based on the positioning process and the pose monitoring process, it is judged that if the person does not change the pose for a long time, there may be a movement abnormality. And the direct physical changes corresponding to the movement abnormality are shortness of breath, rapid heartbeat, etc. Therefore, it will trigger the acquisition of the data of the health monitoring device to continue to confirm whether the person has a movement abnormality. In order to realize the monitoring of the fall abnormality caused by the fall abnormality in a dangerous environment, this technical solution takes into account that a large acceleration will be generated in the vertical direction in a short time when a fall occurs, so it is monitored to confirm whether a fall abnormality occurs. And secondary confirmation will be carried out during the above risk confirmation process, so as to avoid excessive overhead caused by directly pulling data. Continuing, when it is confirmed that the person is abnormal, in addition to requesting rescue from the total control end, rescue will also be requested from the nearby operators, so as to improve the rescue efficiency.And a periodic rescue request method is adopted to confirm its response, so that the personal safety of personnel can be effectively rescued.

[0048] It should be understood that all combinations of the foregoing concepts and additional concepts described in more detail below can be regarded as part of the inventive subject matter of the present disclosure as long as such concepts do not conflict with each other.

[0049] The foregoing and other aspects, embodiments, and features of the teachings of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of exemplary embodiments, will be apparent from the following description, or will be learned through the practice of specific embodiments according to the teachings of the present invention. Brief Description of the Drawings

[0050] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in each figure may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present invention will be described by way of example and with reference to the drawings, wherein:

[0051] Figure 1 is a flowchart of the operation safety monitoring method based on the UWB positioning card described in this embodiment;

[0052] Figure 2 is another flowchart for health monitoring in this embodiment;

[0053] Figure 3 is a flowchart of health monitoring within the electronic fence area in this embodiment;

[0054] Figure 4 is a flowchart for health status confirmation in this embodiment;

[0055] Figure 5 is a flowchart for environmental rectification in this embodiment;

[0056] Figure 6 is a structural block diagram of the operation safety monitoring system based on the UWB positioning card described in this embodiment;

[0057] Figure 7 is a flowchart of the electronic device described in this embodiment. Detailed Description of the Embodiments

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains.

[0059] The terms "first", "second", and similar terms used in the description and claims of this application do not denote any order, quantity, or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, singular forms such as "a", "an", or "the" do not denote a limitation of quantity, but rather indicate the presence of at least one. Words such as "including" or "comprising" mean that the elements or items appearing before "including" or "comprising" cover the features, wholes, steps, operations, elements, and / or components listed after "including" or "comprising", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations. Terms such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0060] With the technological development in fields such as coal mines, chemical industries, petroleum, and metallurgy, more job positions are continuously created. However, the nature of work in some positions is relatively dangerous, so we need to monitor the work activity trajectories and life health of these personnel in real time. Currently, due to factors such as current technical conditions and technical costs, effective monitoring of the health of personnel in some fields is restricted. Based on this, this embodiment aims to provide a job safety monitoring method based on UWB positioning cards to solve the above technical problems.

[0061] The following specifically introduces the job safety monitoring method based on UWB positioning cards described in this embodiment with reference to the accompanying drawings.

[0062] Before executing the method, initialize the system of the UWB positioning card. Specifically, it includes system initialization configurations such as MCU working frequency configuration, system IO input / output configuration, UWB communication port configuration, IMU communication port and register configuration, SysTick, display screen interface, AD acquisition, etc. After the system initialization is completed, the UWB positioning card starts to work normally. At the same time, an IMU sensor is integrated in the UWB positioning card, and the target monitoring personnel also wear health monitoring devices at all times. The UWB positioning card communicates with the total control terminal based on UWB technology to report position information, and during the communication process, it carries the acceleration information monitored by the IMU sensor and the health monitoring data of the health monitoring device worn on the body. And the control of the IMU sensor and the health monitoring device by the total control terminal is forwarded by the UWB positioning card. Specifically, combined with Figure 1 as shown, perform data reporting interaction according to the following steps to achieve personal safety monitoring of personnel:

[0063] Step S102: Obtain the real-time position information of the target monitoring personnel obtained based on the UWB ranging process, and the real-time pose information and the real-time acceleration information in the vertical direction of the target monitoring personnel obtained based on the IMU sensor at the first frequency.

[0064] Step S104: When it is determined that the change amount of the real-time position information and the change amount of the real-time pose information do not exceed the corresponding first thresholds within the first preset period, send a health monitoring instruction to the UWB positioning card; or, when it is determined that the change amount of the real-time acceleration information is not less than the corresponding second threshold within the first preset period, send a fall inquiry instruction to the UWB positioning card.

[0065] At this time, based on step S104, it can be determined whether there is a health abnormality caused by internal reasons of the target monitoring personnel, such as difficulty breathing, inconvenient movement, etc., based on the change amount of the real-time position information and the change amount of the real-time pose information; or it can be determined whether there is a fall abnormality caused by external environmental reasons of the target monitoring personnel based on the real-time acceleration information.

[0066] In specific implementation, the health monitoring instruction is used to control the UWB positioning card to establish communication with the health monitoring device worn by the target monitoring personnel, and synchronously report the real-time health monitoring data of the target monitoring personnel at the first frequency within the second preset period based on the UWB positioning card. The real-time health monitoring data includes: real-time heart rate, real-time blood oxygen saturation.

[0067] As another specific implementation, when determining a fall, the real-time acceleration information can also be converted into displacement information to determine that a fall may have occurred when the vertical displacement amount exceeds a preset displacement amount threshold within a preset time period. The fall inquiry instruction is at least one of a text instruction or a voice instruction. Specifically, the text instruction is displayed on the display end of the UWB positioning card. As a specific implementation manner, the specific content of the fall inquiry instruction may be: "It is detected that you are at risk of falling. Do you need help?". To obtain an accurate feedback, the response feedback of the fall inquiry instruction is set to: "Yes", or "No". The response feedback can be completed by the touch display end or by voice feedback.

[0068] As a further implementation manner, considering the problem that although the change amount of the real-time position information and the change amount of the real-time pose information exceed the corresponding first threshold (that is, there is no health abnormality), there may be potential health and safety hazards for the personnel. Therefore, in combination with Figure 2 As shown, step S104 further includes the following steps:

[0069] Step S10402: When it is determined that the change amount of the real-time position information and the change amount of the real-time pose information both exceed the corresponding first threshold but do not exceed the corresponding second threshold within the first preset time period, issue a health warning instruction to the UWB positioning card.

[0070] In specific implementation, the health warning instruction is used to inquire whether there is any abnormality in the body of the target monitored person, and the real-time pose information and the real-time acceleration information in the vertical direction of the target monitored person are obtained at the second frequency within the time interval between the issuance and response of the health warning instruction. The first threshold is greater than the second threshold, and the second frequency is greater than the first frequency.

[0071] At this time, based on step S10402, high-frequency monitoring can be performed on the target monitored person in the health risk critical area, so as to respond in a timely manner when an abnormality occurs. At the same time, the high-frequency monitoring time limit for responding to the corresponding person is also used to avoid ineffective monitoring and large overhead, thereby affecting the data reporting and information interaction of other UWB positioning cards.

[0072] As a preferred implementation manner, in order to further improve the personal safety of the target monitored person and avoid the occurrence of unnecessary dangerous events. In combination with Figure 3 As shown, after step S102, it further includes:

[0073] Step S10422: When it is determined that the real-time position information coincides with the preset electronic fence, issue an alarm instruction to the UWB positioning card.

[0074] Specifically, the electronic fence is a prohibited entry area, and the warning instruction is used to remind the target monitor to leave the area where they are located. In specific implementation, when a staff member accidentally enters the area of the electronic fence, the positioning base station has a voice prompt "You have entered a dangerous area, please leave immediately". The positioning card will also have sound prompts, vibration prompts, and text prompts to remind the person to quickly leave the dangerous area.

[0075] Step S10424, when obtaining an alarm feedback to confirm that the target monitor enters the electronic fence for legitimate reasons, issue a health monitoring instruction to the UWB positioning card to synchronously obtain the real-time health monitoring data of the target monitor.

[0076] In specific implementation, the legitimate reasons include: exception handling, daily inspection, etc. This ensures the normal progress of daily inspections in the dangerous area; and further ensures the safety of personnel during operations in the electronic fence area by reporting the real-time health monitoring data of the corresponding target monitors. Further, the stay time of the target monitor in the electronic fence will be monitored. If it is determined that the stay time is greater than the preset duration, a forced departure instruction will be issued to order them to leave; to avoid safety accidents. At this time, if the corresponding person is ordered to leave, they can choose to enter and work at other times, or enter with other people to improve the work efficiency in the dangerous area.

[0077] Step S106, when it is determined that the real-time health monitoring data is abnormal, or when obtaining a feedback to be rescued for responding to the fall inquiry instruction, periodically issue an assistance instruction and the real-time position information of the target monitor to the UWB positioning card closest to the position of the UWB positioning card, and at the same time periodically report an assistance request and the real-time position information of the target monitor to the total control terminal until an assistance response from the closest UWB positioning card and / or the total control terminal is obtained.

[0078] In specific implementation, the feedback to be rescued is a positive feedback of the target monitor to the fall inquiry instruction, or a system automatic feedback triggered passively when the target monitor does not respond to the fall inquiry instruction within the preset duration. Based on the above, as a specific implementation method, the positive feedback is: the response feedback to "It is detected that you are in danger of falling. Do you need to call for help?" is: "Yes". At the same time, setting the system automatic feedback can avoid the situation where the target monitor is too severely injured after falling and unable to give feedback by themselves.

[0079] As a preferred implementation method, in order to avoid secondary dangers for operators who have had health abnormalities or fall abnormalities again, as shown in Figure 4 Before step S102, it further includes:

[0080] Step S10002: Obtain personal information of the target monitoring personnel bound one by one to the UWB positioning card.

[0081] Specifically, the personal information includes name, department, shift, and whether health monitoring or fall inquiry was triggered within the third preset time period.

[0082] Step S10004: When it is determined that the target monitored person triggers health monitoring or fall inquiry within the third preset time period, a health certification instruction is issued.

[0083] In specific implementation, the health certificate instruction is used to obtain a health certificate document of the target monitored person within the time interval between the time when the health monitoring or fall inquiry is triggered and the time when the health certificate instruction is issued. Specifically, the health certificate document can be a physical examination report, a test report, etc.

[0084] Step S10006: When it is determined that the target monitored person is in a physical state of operating, unlock the UWB positioning card to allow the person to operate; otherwise, lock the UWB positioning card and report abnormal operation feedback to the main control end.

[0085] At this time, based on steps S10002 to S10006, the UWB positioning card can be used to bind the operator information one by one, and the health status of personnel with health abnormalities can be confirmed, thereby ensuring their working safety in dangerous environments.

[0086] Considering that the occurrence of some abnormal falls is not only related to the individual, but also to the objective environment. Figure 5 As shown, after step S106, the following steps are also included:

[0087] Step S10802: Summarize the historical location information corresponding to the triggering of the fall query for each target monitoring person within the fourth preset time period.

[0088] Step S10804, extracting historical location information whose total number of triggering drop inquiries is greater than a preset number of times as high-frequency location information;

[0089] Step S10806: retrieve the historical image data of each target monitoring person each time a fall inquiry is triggered based on the high-frequency position information obtained by the camera.

[0090] Step S10808: Perform background difference processing and edge detection on each historical image data to determine if the ambient light brightness is lower than a preset brightness value, or if there is a dangerous placement of equipment, and report a rectification request to the main control terminal.

[0091] In specific implementation, the background difference processing is used to extract foreground objects (such as fixed objects like placed equipment, laid cables, etc., and people entering the area) in the background environment. In this embodiment, if the foreground object extraction cannot be performed normally, or the clarity of the extracted foreground object is lower than the preset clarity, it is determined that the ambient light is too low. Edge detection is used to extract the object contour. If it is determined that the preset areas of the fixed object contour and the person contour (such as the cable and the person's foot area, the equipment support foot and the person's foot area, the equipment and the person's body area) overlap and then the person has a fall, it is confirmed that the fixed object is not placed reasonably and needs to be rectified.

[0092] Thus, in this embodiment, data communication in the entire health monitoring is based on UWB technology, thereby ensuring the reliability of data communication. And a method of classifying and secondarily confirming two common health abnormalities is adopted to avoid ineffective overhead and affect other positioning cards and the health monitoring process. And during the process of requesting rescue after confirming the occurrence of a health abnormality, help is simultaneously requested from the master control and nearby personnel to improve the rescue efficiency. At the same time, considering the sub-healthy risk, such situations are monitored frequently to respond in a timely manner when the risk occurs. Considering the high risk of health abnormalities that may be caused in some dangerous areas, an electronic fence and corresponding operation rules are set. Considering the high risk of recurrence of health abnormalities for those who have had health abnormalities before, a health status confirmation plan is set. And considering the fall abnormality caused by objective reasons in the environment, a corresponding plan is designed to rectify the objective environment. Thus, overall, not only effective health monitoring is achieved, but also the occurrence of health abnormality conditions is effectively avoided.

[0093] The above program can run in a processor or can also be stored in a memory (or referred to as a computer-readable storage medium). Computer-readable media include permanent and non-permanent, removable and non-removable media and can implement information storage by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette tapes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media do not include transitory computer-readable media such as modulated data signals and carrier waves.

[0094] These computer programs can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one process or multiple processes and / or boxes. Different steps can be implemented by different modules. Figure 1 one process or multiple processes and / or boxes Figure 1 The steps for implementing the functions specified in one box or multiple boxes. Different steps can be implemented by different modules.

[0095] This embodiment also provides a job safety monitoring system based on a UWB positioning card, which is carried out based on the worn UWB positioning card. Among them, the UWB positioning card is integrated with an IMU sensor. Combining Figure 6 As shown, the system includes the following functional modules:

[0096] The first acquisition module is used to acquire the real-time position information of the target monitored person obtained based on the UWB ranging process at the first frequency, as well as the real-time pose information of the target monitored person and the real-time acceleration information in the vertical direction obtained based on the IMU sensor.

[0097] The first judgment module is used to issue a health monitoring instruction to the UWB positioning card when it is judged that the change amount of the real-time position information and the change amount of the real-time pose information do not exceed the corresponding first thresholds within the first preset time period; or, when it is judged that the change amount of the real-time acceleration information is not less than the corresponding second threshold within the first preset time period, issue a fall inquiry instruction to the UWB positioning card.

[0098] Among them, the health monitoring instruction is used to control the UWB positioning card to establish communication with the health monitoring device worn by the target monitored person, and synchronously report the real-time health monitoring data of the target monitored person at the first frequency within the second preset time period based on the UWB positioning card; among them, the real-time health monitoring data includes: real-time heart rate, real-time blood oxygen saturation; among them, the fall inquiry instruction is at least one of a text instruction or a voice instruction.

[0099] The second judgment module is used to periodically issue an assistance instruction and the real-time position information of the target monitored person to the UWB positioning card closest to the position of the UWB positioning card when it is judged that the real-time health monitoring data is abnormal, or when obtaining a rescue feedback for responding to the fall inquiry instruction, and simultaneously periodically report an assistance request and the real-time position information of the target monitored person to the total control end until an assistance response from the nearest UWB positioning card and / or the total control end is obtained.

[0100] Among them, the rescue feedback is a positive feedback of the target monitor to the fall inquiry instruction, or an automatic system feedback triggered passively when the target monitor fails to respond to the fall inquiry instruction within a preset time period.

[0101] Since the system is built based on the method, the above description is not repeated here.

[0102] For example, the system further includes the following functional modules:

[0103] The third judgment module is used to issue an alarm instruction to the UWB positioning card when it judges that the real-time position information coincides with a preset electronic fence.

[0104] Among them, the electronic fence is a prohibited entry area, and the alarm instruction is used to remind the target monitor to leave the area.

[0105] The second acquisition module is used to acquire alarm feedback to confirm that the target monitor enters the electronic fence for legitimate reasons, and then issue a health monitoring instruction to the UWB positioning card to synchronously acquire the real-time health monitoring data of the target monitor.

[0106] For another example, the system further includes the following functional modules:

[0107] The fourth judgment module is used to issue a health warning instruction to the UWB positioning card when it judges that both the change amount of the real-time position information and the change amount of the real-time pose information exceed the corresponding first threshold but do not exceed the corresponding second threshold within a first preset time period.

[0108] Among them, the health warning instruction is used to inquire whether the target monitor has any physical abnormalities, and acquire the real-time pose information and the real-time acceleration information in the vertical direction of the target monitor at a second frequency within the time interval between the issuance and response of the health warning instruction; where the first threshold is greater than the second threshold, and the second frequency is greater than the first frequency.

[0109] Combined Figure 7 As shown, this embodiment provides an electronic device, including at least one processor, the processor is coupled with a memory, and a computer program is stored in the memory, and the computer program is configured to execute the method when being run by the processor.

[0110] At the same time, this embodiment also provides a computer-readable storage medium, on which a computer program is stored, and the computer program is used to be executed by a processor to implement the method.

[0111] Since the system, the electronic device, and the computer-readable storage medium are all built based on the method or used to implement the method, during actual implementation, the health status of the target monitored person can also be effectively monitored, thereby ensuring the safety of operations in a dangerous environment.

[0112] Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Those of ordinary skill in the art to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to what is defined by the claims.

Claims

1. A method for monitoring operation safety based on a UWB positioning card, characterized in that: Based on a worn UWB positioning card, wherein the UWB positioning card is integrated with an IMU sensor; including: Acquire, at a first frequency, the real-time position information of the target monitoring person obtained based on the UWB ranging process, as well as the real-time posture information of the target monitoring person obtained based on the IMU sensor and the real-time acceleration information in the vertical direction; When it is determined that the change amount of the real-time position information and the change amount of the real-time posture information within the first preset time period do not exceed the corresponding first threshold value, a health monitoring instruction is issued to the UWB positioning card; or, when it is determined that the change amount of the real-time acceleration information within the first preset time period is not less than the corresponding second threshold value, a fall inquiry instruction is issued to the UWB positioning card; The health monitoring instruction is used to control the UWB positioning card to establish communication with the health monitoring device worn by the target monitoring person, and synchronously report the real-time health monitoring data of the target monitoring person within the second preset time period at the first frequency based on the UWB positioning card; wherein the real-time health monitoring data includes: real-time heart rate, real-time blood oxygen saturation; wherein the fall inquiry instruction is at least one of a text instruction or a voice instruction; When it is determined that the real-time health monitoring data is abnormal, or when the feedback to be rescued is obtained in response to the fall inquiry command, the assistance command and the real-time location information of the target monitoring person are periodically sent to the UWB positioning card closest to the UWB positioning card, and the assistance request and the real-time location information of the target monitoring person are periodically reported to the main control end until the assistance response of the nearest UWB positioning card and / or the main control end is obtained; The feedback to be rescued is a positive feedback from the target monitoring personnel to the fall inquiry command, or an automatic feedback from the system passively triggered by the target monitoring personnel not responding to the fall inquiry command within a preset time period.

2. The operation safety monitoring method based on UWB positioning card according to claim 1 is characterized in that: After acquiring the real-time position information of the target monitoring person obtained based on the UWB ranging process according to the first frequency, and the real-time posture information of the target monitoring person obtained based on the IMU sensor and the real-time acceleration information in the vertical direction, the method further includes: When it is determined that the real-time location information coincides with a preset electronic fence, an alarm instruction is sent to the UWB positioning card; Wherein, the electronic fence is a prohibited entry area, and the alarm instruction is used to remind the target monitoring personnel to leave the area; When alarm feedback is obtained to confirm that the target monitored person has entered the electronic fence for a legitimate reason, a health monitoring instruction is issued to the UWB positioning card to synchronously obtain the real-time health monitoring data of the target monitored person.

3. The operation safety monitoring method based on UWB positioning card according to claim 1 is characterized in that: After acquiring the real-time position information of the target monitoring person obtained based on the UWB ranging process according to the first frequency, and the real-time posture information of the target monitoring person obtained based on the IMU sensor and the real-time acceleration information in the vertical direction, the method further includes: When it is determined that the change amount of the real-time position information and the change amount of the real-time posture information within the first preset time period exceed the corresponding first threshold value but do not exceed the corresponding second threshold value, a health warning instruction is issued to the UWB positioning card; Among them, the health warning instruction is used to inquire whether there is any abnormality in the body of the target monitored person, and obtain the real-time posture information and real-time acceleration information in the vertical direction of the target monitored person at a second frequency within the time interval between the issuance and response of the health warning instruction; wherein, the first threshold is greater than the second threshold, and the second frequency is greater than the first frequency.

4. The operation safety monitoring method based on UWB positioning card according to claim 1 is characterized in that: Before acquiring the real-time position information of the target monitoring person obtained based on the UWB ranging process according to the first frequency, and the real-time posture information of the target monitoring person obtained based on the IMU sensor and the real-time acceleration information in the vertical direction; it also includes: Obtaining personal information of the target monitoring personnel bound to the UWB positioning card one by one; wherein the personal information includes name, department, shift, and whether health monitoring or fall inquiry is triggered within the third preset time period; When it is determined that the target monitored person triggers health monitoring or fall inquiry within the third preset time period, a health certification instruction is issued; wherein the health certification instruction is used to obtain a health certification document of the target monitored person within the time interval between the time point when the health monitoring or fall inquiry is triggered and the time point when the health certification instruction is issued; When it is determined that the target monitored person is in a physical state of operating, the UWB positioning card is unlocked to allow the person to operate; otherwise, the UWB positioning card is locked and abnormal operation feedback is reported to the main control end.

5. The operation safety monitoring method based on UWB positioning card according to claim 1 is characterized in that: include: Summarize the historical location information corresponding to the triggering of the fall query for each target monitoring personnel within the fourth preset period of time; Extract historical location information whose total number of triggering drop inquiries is greater than a preset number of times as high-frequency location information; Retrieve historical image data of each target monitoring personnel each time a fall inquiry is triggered based on the high-frequency position information obtained by the camera; Perform background difference processing and edge detection on each historical image data to determine if the ambient light brightness is lower than the preset brightness value, or if there is a dangerous placement of equipment, and report the rectification request to the main control end.

6. An operation safety monitoring system based on UWB positioning card, characterized in that: Based on a worn UWB positioning card, wherein the UWB positioning card is integrated with an IMU sensor; including: A first acquisition module is used to acquire, at a first frequency, the real-time position information of the target monitoring person obtained based on the UWB ranging process, as well as the real-time posture information of the target monitoring person obtained based on the IMU sensor and the real-time acceleration information in the vertical direction; A first judgment module is used to send a health monitoring instruction to the UWB positioning card when it is determined that the change amount of the real-time position information and the change amount of the real-time posture information within a first preset time period do not exceed the corresponding first threshold value; or, when it is determined that the change amount of the real-time acceleration information within the first preset time period is not less than the corresponding second threshold value, send a fall inquiry instruction to the UWB positioning card; The health monitoring instruction is used to control the UWB positioning card to establish communication with the health monitoring device worn by the target monitoring person, and synchronously report the real-time health monitoring data of the target monitoring person within the second preset time period at the first frequency based on the UWB positioning card; wherein the real-time health monitoring data includes: real-time heart rate, real-time blood oxygen saturation; wherein the fall inquiry instruction is at least one of a text instruction or a voice instruction; The second judgment module is used to periodically send assistance instructions and the real-time location information of the target monitoring personnel to the UWB positioning card closest to the UWB positioning card when it is judged that the real-time health monitoring data is abnormal, or when the rescue feedback for responding to the fall inquiry instruction is obtained, and periodically report the assistance request and the real-time location information of the target monitoring personnel to the main control end until the assistance response of the nearest UWB positioning card and / or the main control end is obtained; The feedback to be rescued is a positive feedback from the target monitoring personnel to the fall inquiry command, or an automatic feedback from the system passively triggered by the target monitoring personnel not responding to the fall inquiry command within a preset time period.

7. The operation safety monitoring system based on UWB positioning card according to claim 6 is characterized in that: include: A third judgment module is used to send an alarm instruction to the UWB positioning card when it is determined that the real-time location information coincides with a preset electronic fence; Wherein, the electronic fence is a prohibited entry area, and the alarm instruction is used to remind the target monitoring personnel to leave the area; The second acquisition module is used to obtain alarm feedback to confirm that when the target monitored person enters the electronic fence for a legitimate reason, send a health monitoring instruction to the UWB positioning card to synchronously obtain the real-time health monitoring data of the target monitored person.

8. The operation safety monitoring system based on UWB positioning card according to claim 6 is characterized in that: include: A fourth judgment module is used to determine that when the change amount of the real-time position information and the change amount of the real-time posture information within the first preset time period exceed the corresponding first threshold but do not exceed the corresponding second threshold, send a health warning instruction to the UWB positioning card; Among them, the health warning instruction is used to inquire whether there is any abnormality in the body of the target monitored person, and obtain the real-time posture information and real-time acceleration information in the vertical direction of the target monitored person at a second frequency within the time interval between the issuance and response of the health warning instruction; wherein, the first threshold is greater than the second threshold, and the second frequency is greater than the first frequency.

9. An electronic device, characterized in that: The method comprises at least one processor, wherein the processor is coupled to a memory, wherein a computer program is stored in the memory, and wherein the computer program is configured to execute the method according to any one of claims 1 to 5 when executed by the processor.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program is used to be executed by a processor to implement the method according to any one of claims 1 to 5.

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