A method for safety monitoring in marathon running

Abstract

This invention discloses a method for safety monitoring in marathon running, comprising: Step 1, initialization of roadside equipment and body area network (BNB) equipment; Step 2, BNB equipment monitoring athletes' health signs and running routes, and roadside equipment monitoring the weather along the course; Step 3, when athletes' health signs are abnormal, BNB equipment sends a voice alarm to the athletes and broadcasts a data packet containing abnormal information; when athletes deviate from the marathon route, BNB equipment sends voice reminders and voice navigation to the athletes; Step 4, after athletes enter the communication range between BNB equipment and roadside equipment, BNB equipment uploads data information to roadside equipment; Step 5, roadside equipment sends the monitored weather information and received health sign information to a central server; Step 6, the central server performs real-time safety assessment of the marathon race. This invention is characterized by ensuring the safety of marathon running.

Description

Technical Field

[0001] This invention relates to the fields of communication technology and sports, and more specifically, to a method for monitoring and controlling the safety of marathon running. Background Technology

[0002] Marathon running is a very popular long-distance running event both domestically and internationally. Athletes participate in races on open and diverse courses, enjoying different scenery while exercising and improving their fitness. With the increasing awareness of health and wellness among the public, the number of people participating in marathons is also constantly increasing. However, due to weak risk prevention mechanisms, a lack of awareness about safety precautions, and inappropriate prevention models, marathon events have fallen into an imbalance between rapid growth in scale and weak safety guarantees. Ensuring the personal safety of athletes has become an urgent problem to be solved. Furthermore, sudden changes in weather can easily lead to hypothermia, and unfamiliar courses can easily cause athletes to get lost. Accidents caused by getting lost or physical discomfort are also frequent.

[0003] To ensure the safety of athletes and promote the healthy development of marathon running, it is urgent to introduce new technologies to establish a marathon safety monitoring system that can effectively monitor the real-time status of athletes and the course, so that staff can promptly and accurately grasp relevant information and provide logistical support in the event of an abnormal incident. Summary of the Invention

[0004] The purpose of this invention is to design and develop a safety monitoring method for marathon running. By monitoring the athlete's health status, running path, and natural environment of the track, potential dangers and anomalies can be detected in real time, preventing safety accidents and ensuring the safety of marathon running.

[0005] The technical solution provided by this invention is as follows:

[0006] A method for safety monitoring in marathon running includes the following steps:

[0007] Step 1: Initialize the roadside equipment and body area network equipment;

[0008] Step 2: The body area network device monitors the athlete's health signs and movement path, and the roadside equipment monitors the track weather in real time;

[0009] Step 3: When an athlete's vital signs data are abnormal, the body area network device sends a voice alarm to the athlete and broadcasts a data packet containing abnormal information. Other body area network devices and roadside devices within the communication range can receive the data packet containing abnormal information.

[0010] When an athlete's path deviates from the marathon route, the body area network device sends voice reminders and voice navigation to the athlete;

[0011] Step 4: After the athlete enters the communication range of the roadside equipment, the body area network device uploads data information to the roadside equipment;

[0012] Step 5: The roadside equipment uploads data to the central server;

[0013] Step Six: The central server assesses whether the event is secure.

[0014] If the competition venue does not meet the requirements of the competition, the roadside equipment will send a reminder message to the body area network equipment;

[0015] If an athlete's vital signs data exceeds the range of normal human health, the athlete's vital signs data is determined to be abnormal, and the central server sends a reminder to the staff.

[0016] If an athlete's path deviates from the marathon route and the roadside equipment does not receive data from the athlete's corresponding body area network device for more than 20 minutes, the central server will send an alert to the staff.

[0017] Preferably, step one specifically includes: data initialization of roadside equipment, data initialization of body area network equipment, configuration initialization of roadside equipment, and configuration initialization of body area network equipment.

[0018] Preferably, the athlete's health indicators include: body temperature, heart rate, blood oxygen, and blood pressure.

[0019] Preferably, the body area network device monitors the motion path in the following ways:

[0020] The body area network device locates the athlete's geographical location in real time and compares the athlete's real-time location with the GPS data information of the marathon route to determine whether the athlete has deviated from the race path.

[0021] Preferably, the roadside equipment monitors the temperature, humidity, wind direction, and wind speed at its location in real time.

[0022] Preferably, in step four, the roadside equipment divides the infinite channel into periodic superframes, which include management periods, CSMA access periods, and TDMA periods.

[0023] Specifically, the body area network (BAN) device sends a time slot reservation request to the roadside node during the CSMA access period, the roadside node allocates available time slots to the BAN device during the management period, and the BAN device uploads data information to the roadside node during the TDMA period using the time slots allocated by the roadside node.

[0024] Preferably, when the time slots of the infinite channel are insufficient, data from higher-priority body area network devices are uploaded first, and the priority satisfies:

[0025]

[0026] In the formula, d il Let D be the distance between the i-th individual area network device and the l-th roadside device. th δ represents the maximum communication distance of a body area network (BAN) device. i Let δ be the abnormal factor of the i-th individual area network device, and let δ be the abnormal factor when the athlete deviates from the route. i =1, when the athlete's physical signs are abnormal. i =2.

[0027] Preferably, step four further includes:

[0028] When a body area network (BNB) device cannot communicate with the roadside device, it will interact and transmit data with other BNB devices in the vicinity. When there are no abnormalities in the athlete's vital signs data and movement path, the BNB device will only broadcast data one-on-one. When there are abnormalities in the athlete's vital signs data or movement path, the BNB device will propagate the abnormal data to the roadside node through multi-hop routing. The BNB device that generates abnormal data will also perform multi-hop transmission of the abnormal data in the two directions before and after it.

[0029] After receiving an abnormal message broadcast by another body area network device, if no other body area network device forwards the abnormal message in the direction of its propagation and within a waiting period, the body area network device will forward the abnormal message.

[0030] Wherein, the waiting time satisfies:

[0031]

[0032] In the formula, d ij T is the distance between the VLAN device that last sent an abnormal data packet and the VLAN device that is currently potentially forwarding an abnormal data packet. th The threshold time.

[0033] Preferably, the abnormal data includes: the abnormal GPS location of the athlete's body area network device, the GPS location of the body area network device forwarding the abnormal data, and the propagation direction of the message.

[0034] The beneficial effects of this invention are as follows:

[0035] This invention presents a marathon safety monitoring method that uses wearable body area network (BNB) devices to detect abnormalities in athletes' health status in real time and to detect whether athletes have deviated from the track, providing timely alarms. Roadside devices deployed along the track collect the data sensed by the athletes' BNB devices and aggregate it to a central server. This allows support staff to more accurately grasp the real-time status of the marathon and provide precise logistical support when needed, effectively improving the safety of marathon events. Attached Figure Description

[0036] Figure 1 This is a flowchart illustrating the marathon safety monitoring method described in this invention.

[0037] Figure 2 This is a schematic diagram of the layout of the roadside equipment described in this invention. Detailed Implementation

[0038] The present invention will now be described in further detail so that those skilled in the art can implement it based on the description.

[0039] like Figure 1 As shown, the present invention provides a marathon safety monitoring method, which monitors athlete safety based on a marathon monitoring device consisting of a body area network device worn by the athlete, roadside devices deployed on the marathon track, and a central server. The method specifically includes the following steps:

[0040] Step 1: Initialize the roadside equipment and body area network (BAN) equipment, specifically including data initialization of the roadside equipment, data initialization of the BAN equipment, configuration initialization of the roadside equipment, and configuration initialization of the BAN equipment.

[0041] The data initialization of the roadside equipment and the data initialization of the body area network equipment are both processes in which the central server imports data to the roadside equipment and the body area network equipment. The roadside equipment receives the preset GPS location information of the roadside equipment sent by the central server, and the body area network equipment receives the marathon route GPS data information and the location information of all roadside equipment sent by the central server.

[0042] The configuration initialization of the roadside equipment is to have staff pre-deploy any one of the roadside equipment at a preset GPS location; the configuration initialization of the body area network equipment is to correctly wear each body area network device on each athlete.

[0043] like Figure 2As shown, in this embodiment, the roadside equipment is deployed at track bends and in the middle of the track where the two bends are far apart. When the distance between adjacent bends exceeds a threshold distance, additional roadside equipment is deployed at that adjacent bend to ensure that the distance between adjacent roadside equipment does not exceed the threshold distance. The threshold distance satisfies the following:

[0044] d th =5.56×T Δ ;

[0045] In the formula, d th T is the threshold distance. Δ The threshold time for an athlete to travel between two adjacent roadside devices at an average speed of 5.56 m / s;

[0046] In this embodiment, the threshold time for an athlete to travel between two adjacent roadside devices at an average speed of 5.56 m / s is 600 s, and the threshold distance is 3336 m. That is, if an athlete cannot reach the next roadside device within 10 minutes of traveling from one roadside device at a speed of 5.56 m / s, then a supplementary roadside device is provided between the two adjacent roadside devices.

[0047] In this embodiment, the central node of the body area network device is equipped with a GPS positioning module and a voice interaction module, in addition to the communication module.

[0048] Step 2: The body area network device monitors the athlete's health signs and movement path, and the roadside equipment monitors the track weather in real time;

[0049] Among them, the body area network device monitors the athlete's health signs by collecting vital signs data such as body temperature, heart rate and blood pressure to assess the athlete's real-time physical condition.

[0050] The body area network device monitors the athlete's movement path by locating the athlete's geographical location in real time and comparing the athlete's real-time location with the GPS data information of the marathon route obtained during initialization, thereby determining whether the athlete has deviated from the race route.

[0051] The roadside equipment monitors weather data at its location, such as temperature, humidity, wind direction, and wind speed, which are crucial for athletes' physical condition and the safety of the marathon race.

[0052] Step 3: Determine the athlete's real-time physical condition and real-time movement path;

[0053] When an athlete's vital signs data become abnormal, i.e., when the athlete's vital signs data exceed the range of human health vital signs, the body area network device sends a voice alarm to the athlete and broadcasts the abnormal vital signs information to the body area network devices worn by other athletes in the vicinity and the roadside equipment within its communication range.

[0054] The range of human health indicators is as follows: body temperature between 36 and 37.3°C, heart rate between 60 and 100 beats per minute, and blood pressure between 90 and 140 mmHg.

[0055] When an athlete's real-time location deviates from the marathon route by more than 20 meters, the body area network device sends a voice reminder to the athlete. At the same time, based on the GPS data of the marathon route and its own real-time positioning, it provides voice navigation to help the athlete return to the race route.

[0056] Step 4: The body area network device uploads data information;

[0057] When the body area network device uploads data information to the roadside node, the roadside node acts as the central node to schedule the network communication process.

[0058] The roadside node divides the wireless channel into periodic superframes, with the superframe length satisfying the following:

[0059] T = T b +T c +T t ;

[0060] In the formula, T is the superframe length, T b For the length of the management period, T c T represents the CSMA access time period. t The TDMA time period length;

[0061] The superframe includes a management period, a CSMA access period, and a TDMA period, and the length of the management period satisfies the following:

[0062]

[0063] In the formula, L b R is the length of the management message broadcast by the roadside equipment;

[0064] The CSMA access time period length is a fixed value, T. c =0.05ms;

[0065] The TDMA time period length satisfies:

[0066]

[0067] In the formula, n represents the number of body area networks within the communication range of the roadside equipment that have obtained time slot allocations, and L... u The length of the data packets sent by the body area network device;

[0068] The body area network device sends a time slot reservation request to the roadside node during the CSMA access period, the roadside device allocates available time slots to the body area network device during the management period, and the body area network device uploads data information to the roadside node during the time slot allocated by the roadside node during the TDMA period.

[0069] The data information uploaded by the body area network device to the roadside node during the TDMA period includes: the athlete's own physical characteristics information sensed by the body area network device and important data information received from other body area network nodes during the marathon;

[0070] The time slot allocation for the TDMA period is determined based on the priority of the body area network (BAN) devices. Data from BAN devices with higher priority is uploaded first. The priority of the BAN devices is determined based on the vital sign data sensed by the BAN, and the formula is as follows:

[0071]

[0072] In the formula, d il Let D be the distance between the i-th individual area network device and the l-th roadside device. th δ represents the maximum communication distance of a body area network (BAN) device. i Let δ be the abnormal factor of the i-th individual area network device when the athlete deviates from the route. i =1, when the athlete's physical signs are abnormal. i =2;

[0073] The body area network (BNB) device will only interact and transmit data with other BNB devices in the vicinity when it is unable to communicate with the roadside device. When the BNB device enters the communication range of the roadside device, the BNB device directly uploads data to the roadside device without needing to interact and transmit data with other BNB devices in the vicinity.

[0074] The data interaction and transmission between the body area network devices includes two types: single-hop data broadcasting and multi-hop data routing. When there are no abnormalities in the athlete's physical signs and route, the body area network device only needs to perform single-hop data broadcasting. Otherwise, multi-hop routing is required to propagate abnormal data to the roadside node. The body area network device that generates abnormal data performs multi-hop transmission of abnormal data in the two directions before and after it (i.e., the direction in which the athlete is moving along the marathon track is the front).

[0075] The transmitted abnormal data includes the abnormal GPS location of the athlete's body area network device and the GPS location of the body area network device forwarding the abnormal data, as well as the propagation direction of the message;

[0076] To prevent data broadcast storms, when a VLAN device receives an abnormal message broadcast by another VLAN device, it first determines whether it is in the propagation direction of the message. If it is in the propagation direction and no other VLAN device forwards the abnormal message within a waiting time, it will forward the message. That is, when another VLAN device forwards the message, the current potential forwarding node can receive the forwarded message. If other nodes forward the message within the waiting time, it will not forward the message itself; otherwise, it will forward the message itself.

[0077] The waiting time is related to the distance, and the specific calculation formula is as follows:

[0078]

[0079] In the formula, d ij T is the distance between the VLAN device that last sent an abnormal data packet and the VLAN device that is currently potentially forwarding an abnormal data packet. th The threshold time;

[0080] In this embodiment, the threshold time is 128 μs.

[0081] The important data information sent by other body area network nodes includes abnormal physical signs of other athletes, deviation from the track, and the last updated position information.

[0082] Data interaction between the body area networks occurs when no roadside nodes are present, and channel contention and management are carried out through the CSMA mechanism. The body area network devices periodically broadcast their own GPS location information, and broadcast abnormal information at the same time when there are abnormal physical signs or abnormal paths.

[0083] Step 5: The roadside equipment uploads data;

[0084] The roadside equipment sends the weather data it monitors to the central server, and at the same time, forwards the data it receives from the body area network devices to the central server.

[0085] The communication channel used between the roadside equipment and the central server is different from the communication channel used between the body area network (BAN) devices and between the BAN devices and the roadside nodes.

[0086] The communication between the roadside equipment and the central server is coordinated and scheduled by the central server. The central server polls the roadside equipment, and the roadside equipment uploads data information to the central server after receiving the polling instruction.

[0087] Step Six: The central server assesses the security of the event;

[0088] The assessment of real-time safety in a marathon race includes two aspects: whether the venue meets the requirements of the race and the assessment of the athletes' physical condition.

[0089] If the venue does not meet the requirements for the competition, the roadside nodes will send a reminder to the body area network (BNB) devices. If an athlete's physical condition is abnormal, the central server will send a reminder to the staff to provide medical support to the athlete. Furthermore, if the roadside devices still do not receive data uploaded by the athlete's BNB devices after more than 20 minutes of deviation from the competition route, it will be determined that an early warning needs to be issued to the staff, who will then decide whether to search for and provide medical support to the athlete.

[0090] Whether a venue meets the requirements for a competition is mainly determined by weather conditions, such as strong winds, rain, or excessively high temperatures. These conditions all indicate that the venue does not meet the requirements for a competition. In this embodiment, the temperature, humidity, wind direction, and wind speed data monitored by the roadside equipment are uploaded to the central server, where professional managers determine whether the venue is suitable for the competition. If there is a safety risk, the central server sends a warning message to the transporter through the roadside equipment.

[0091] This invention presents a marathon safety monitoring method that monitors athletes' health status and the natural environment of the racecourse in real time to detect potential dangers and anomalies, ensuring the safety of marathon events. Simultaneously, it detects athletes' deviation from the track in real time and provides voice navigation for those who have strayed, preventing accidents caused by getting lost and effectively improving the safety of marathon events.

[0092] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A method for safety monitoring in marathon running, characterized in that, Includes the following steps: Step 1: Initialize the roadside equipment and body area network equipment; Step 2: The body area network device monitors the athlete's health signs and movement path, and the roadside equipment monitors the track weather in real time; Step 3: When an athlete's vital signs data are abnormal, the body area network device sends a voice alarm to the athlete and broadcasts a data packet containing abnormal information. Other body area network devices and roadside devices within the communication range can receive the data packet containing abnormal information. When an athlete's path deviates from the marathon route, the body area network device sends voice reminders and voice navigation to the athlete; Step 4: After the athlete enters the communication range of the roadside equipment, the body area network device uploads data information to the roadside equipment; The roadside equipment divides the infinite channel into periodic superframes, which include management periods, CSMA access periods, and TDMA periods; In this process, the body area network device sends a time slot reservation request to the roadside node during the CSMA access period, the roadside node allocates available time slots to the body area network device during the management period, and the body area network device uploads data information to the roadside node during the time slot allocated by the roadside node in the TDMA period. When the time slots of the infinite channel are insufficient, data from higher-priority body area network devices are uploaded first, and the priority satisfies the following: In the formula, d il Let D be the distance between the i-th individual area network device and the l-th roadside device. th δ represents the maximum communication distance of a body area network (BAN) device. i Let δ be the abnormal factor of the i-th individual area network device, and let δ be the abnormal factor when the athlete deviates from the route. i =1, when the athlete's physical signs are abnormal. i =2; Step four also includes: When a body area network (BNB) device cannot communicate with the roadside device, it will interact and transmit data with other BNB devices in the vicinity. When there are no abnormalities in the athlete's vital signs data and movement path, the BNB device will only broadcast data one-on-one. When there are abnormalities in the athlete's vital signs data or movement path, the BNB device will propagate the abnormal data to the roadside node through multi-hop routing. The BNB device that generates abnormal data will also perform multi-hop transmission of the abnormal data in the two directions before and after it. After receiving an abnormal message broadcast by another body area network device, if no other body area network device forwards the abnormal message in the direction of its propagation and within a waiting period, the body area network device will forward the abnormal message. Wherein, the waiting time satisfies: In the formula, d ij T is the distance between the VLAN device that last sent an abnormal data packet and the VLAN device that is currently potentially forwarding an abnormal data packet. th The threshold time; The threshold time is 128 μs; Step 5: The roadside equipment uploads data to the central server; Step Six: The central server assesses whether the event is secure. If the competition venue does not meet the requirements of the competition, the roadside equipment will send a reminder message to the body area network equipment; If an athlete's vital signs data exceeds the range of normal human health, the athlete's vital signs data is determined to be abnormal, and the central server sends a reminder to the staff. If an athlete's path deviates from the marathon route and the roadside equipment does not receive data from the athlete's corresponding body area network device for more than 20 minutes, the central server will send an alert to the staff.

2. The marathon safety monitoring method as described in claim 1, characterized in that, Step one specifically includes: data initialization of roadside equipment, data initialization of body area network equipment, configuration initialization of roadside equipment, and configuration initialization of body area network equipment.

3. The marathon safety monitoring method as described in claim 2, characterized in that, The athlete's health indicators include: body temperature, heart rate, blood oxygen, and blood pressure.

4. The marathon safety monitoring method as described in claim 3, characterized in that, The body area network device monitors the motion path in the following ways: The body area network device locates the athlete's geographical location in real time and compares the athlete's real-time location with the GPS data information of the marathon route to determine whether the athlete has deviated from the race path.

5. The marathon safety monitoring method as described in claim 4, characterized in that, The roadside equipment monitors the temperature, humidity, wind direction, and wind speed at its location in real time.

6. The marathon safety monitoring method as described in claim 5, characterized in that, The abnormal data includes: the abnormal GPS location of the athlete's body area network device, the GPS location of the body area network device forwarding the abnormal data, and the propagation direction of the message.

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