Middle and long-distance running detection system and method

Abstract

The present invention discloses a middle and long-distance running detection system and method. The middle and long-distance running detection system includes a controller, and also includes a camera and an RFID card reader device connected to the controller; the RFID card reader device includes a passive receiver and an active receiver; the passive receiver is arranged on both sides of the runway end; the active receiver is buried in the ground at the runway end; it also includes a sports vest, and a passive RFID card and an active RFID card are embedded in the sports vest. The present invention enables users to detect the examination time through RFID electronic identification during the middle and long-distance running examination, and also identify the students' identities through number plates for quick verification, and record them into the examination system in time after verification. In this way, a low-pixel camera can be used to reduce costs. It can record the user's portrait when static, and identify the user's identity with a large-font number plate when running, so as to review the middle and long-distance running timing detection of the user to prevent errors.

Description

Technical Field

[0001] The present invention relates to a motion detection device, and more specifically to a middle and long-distance running detection system and method. Background Art

[0002] In the prior art, when schools conduct middle and long-distance running examinations for students, due to the large number of students, if manual examination and detection are carried out, not only the labor cost is high, but also it is easy to make mistakes, and the data detected manually needs to be re-entered into the electronic system for electronic management. This will generate a second workload.

[0003] Therefore, many manufacturers have developed electronic middle and long-distance running detection devices. For example: CN113289323A discloses an optical measurement method and system for long-distance running, and CN212383186U discloses a running management system applied to middle and long-distance running tests. These middle and long-distance running examination and detection systems or devices mainly use detection functions such as optical detection and smart bracelets, which are relatively complex. The former has a relatively high cost, and the latter may have the situation of cheating.

[0004] As a service provider of sports products, the applicant has long served the school sports cause. Regarding the middle and long-distance running in schools, the applicant believes that it is necessary to develop a more practical and effective examination and detection device that has a low cost and anti-cheating functions. Summary of the Invention

[0005] The purpose of the present invention is to provide a middle and long-distance running detection system and method for the above problems existing in the prior art.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] The middle and long-distance running detection system includes a controller, and also includes a camera and an RFID card reading device connected to the controller; the RFID card reading device includes a passive receiver and an active receiver; the passive receiver is arranged on both sides of the runway end; the active receiver is buried in the ground at the runway end; it also includes a number of sports vests with number plates, and passive RFID cards and active RFID cards are embedded in the sports vests.

[0008] A further technical solution of it is: there are four passive receivers, which are respectively arranged on both sides of the runway end.

[0009] A further technical solution of it is: it also includes a control box for accommodating the controller, and a passive receiver interface, an active receiver interface, a display screen and a power interface are arranged on the upper end surface of the control box.

[0010] A further technical solution is as follows: a cover plate is hingedly provided on the upper end of the control box; one side of the cover plate is hinged to the control box, and the other side is connected by a snap-fit.

[0011] A further technical solution is that a handle is further provided on the upper surface of the cover plate.

[0012] Its further technical solution is: the controller includes a microcontroller arranged in a control box, a laptop or PC connected to the microcontroller; and the camera is connected to the laptop or PC.

[0013] Its further technical solution is: the active RFID card includes a card shell, an RFID circuit arranged in the card shell, a power supply circuit connected to the RFID circuit, and a single chip microcomputer connected to the power supply circuit.

[0014] Its further technical solution is: the active RFID card includes a heart rate sensor connected to the single-chip microcomputer, the heart rate sensor is used to detect the user's heart rate, the active RFID card is arranged at the collar of the sports vest to be close to the skin; the heart rate sensor is embedded in the surface of the card shell close to the human skin.

[0015] A further technical solution is as follows: the active RFID card is also provided with an acceleration sensor connected to a single-chip microcomputer, and a flexible belt for wrapping around the user's chest and / or abdomen; the flexible belt includes a fixed section and a telescopic section; the telescopic section is also connected in parallel with a shell and a sliding piece connected together in a linear sliding manner; the single-chip microcomputer is provided with an input end connected between the shell and the sliding piece; the connection between the shell and the sliding piece is provided with a linear resistor on one side and an electrical contact on the other side; the sliding between the shell and the sliding piece causes a change in the resistance value of the input end to detect the user's breathing volume.

[0016] The middle- and long-distance running detection method of the present invention uses the above-mentioned middle- and long-distance running detection system, and also includes a wireless transmission command device and an infrared detection device located at the finish line. In specific implementation, the following steps can be used:

[0017] Step 1: The tester goes to the track and prepares to start;

[0018] Step 2: The camera captures the face of the athlete (i.e., the user) and the numbered athlete vest to identify the athlete;

[0019] Step 3: The wireless transmitting device at the starting point receives the signal prepared by the end point device;

[0020] Step 4: The starter activates the start controller, and the start device automatically issues a voice command and simultaneously activates the endpoint device to start;

[0021] Step 5: When the starting wireless transmitter receives an alarm from the infrared violation detection device, the wireless starter device automatically notifies the finish point to cancel the current timing, and automatically recalls the testers who have run out through voice. If there is no alarm, proceed to the next step;

[0022] Step 6: Each time the user passes the card reader at the finish point, the card readers of active RFID and passive RFID simultaneously and automatically identify and record the number of laps the user has run;

[0023] Step 7: The camera at the finish point captures the image of the athlete (i.e., the user) at the sprint moment; the card readers of active RFID and passive RFID judge based on the communication duration, and the communication time with the shortest duration is taken as the time when the user reaches the finish point;

[0024] Step 8: Lock and display the timing result and ranking;

[0025] Step 9: After all the athletes in this group have crossed the finish line, stop automatically or press the stop button manually;

[0026] Step 10: Import the timing image of the result and replay it on the computer, etc. After confirming the result, enter Step 1 to start the timing of the next group of examinations;

[0027] Among them, the user first undergoes finish point timing through RFID. First, the passive RFID is used. If there is no record in the passive RFID reader, the record of the active RFID reader is then called, and the time when the signal of the active RFID card is the strongest is calculated, and this is used as the time when the examinee crosses the finish line; the camera photo at the time of crossing the finish line is retrieved, and the photo is sent to the face recognition device to output the examinee information. At this time, the system stores the time and photo when the examinee crosses the finish line.

[0028] The present invention also discloses a middle and long-distance running practice method, which uses an active RFID card. It includes a heart rate sensor connected to the single-chip microcomputer. The heart rate sensor is used to detect the heart rate of the user. The active RFID card is arranged at the collar of the sports vest to be close to the skin. The heart rate sensor is embedded on the surface of the card shell close to the human skin. The active RFID card is also provided with an acceleration sensor connected to the single-chip microcomputer, and a flexible belt for surrounding the chest and / or abdomen of the user. The flexible belt includes a fixed section and a telescopic section. The telescopic section is also connected in parallel with a sleeve and a sliding piece that are linearly slidably connected. The single-chip microcomputer is provided with an input terminal connected between the sleeve and the sliding piece. At the connection of the sleeve and the sliding piece, a linear resistor is provided on one side and an electrical contact is provided on the other side. The sliding between the sleeve and the sliding piece constitutes a change in the resistance value of the input terminal to detect the breathing volume of the user, so as to match the running action and breathing frequency of the student's running exercise. The feedback of the matching situation of the running action and breathing frequency is sent to the user, which can help the user know their running habits and then make adaptive adjustments or modifications. The detection result of the breathing volume can also guide the student to perform deep breathing exercises during middle and long-distance running, thereby improving the ability and performance of middle and long-distance running.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses a sports vest with a number plate and an RFID card, so that when the user (i.e., the student) takes the middle and long-distance running exam, the exam time can be detected through the RFID electronic identification, and the identity of the student can be recognized through the number plate for quick verification. After verification, it is recorded in the exam system in time. In this way, a low-pixel camera can be used to reduce costs. It can record the portrait of the user when static, and when running, the identity of the user can be recognized with a large-font number plate to recheck the middle and long-distance running timing detection of the user to prevent errors. And passive RFID cards and active RFID cards are used to ensure the reliability of the detection of the middle and long-distance running exam results and further prevent errors. Further, a control box with a hinged cover plate is used, which is convenient for moving during handling and is also easy to install and connect quickly. Further, the active RFID card uses a heart rate sensor, which can detect the heart rate of the user and deeply analyze the user's running. The active RFID card further uses a flexible belt, which is beneficial to keep the heart rate sensor close to the position of the human skin. The sliding connection of the sleeve and the sliding piece is used to form a variable resistor, which can detect the breathing volume of the user. When the linear resistor exceeds a certain set value or is disconnected, it can be detected that the user takes off the sports vest to prevent cheating during the exam. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the first specific embodiment of the middle and long-distance running detection system of the present invention;

[0031] Figure 2 is Figure 1 the circuit block diagram of the embodiment;

[0032] Figure 3 is Figure 1 the structural schematic diagram of the specific embodiment;

[0033] Figure 4 is the circuit block diagram of the active RFID card in the second specific embodiment of the middle and long distance running detection system of the present invention;

[0034] Figure 5 is the control flowchart of the specific embodiment of the middle and long distance running detection method of the present invention.

[0035] Reference numerals

[0036] 10 Controller 11 Microcontroller

[0037] 20 Camera 31 Passive receiver

[0038] 32 Active receiver 40 Sports vest

[0039] 41 Passive RFID card 42 Active RFID card

[0040] 421 Card shell 422 RFID circuit

[0041] 423 Power supply circuit 424 Single-chip microcomputer

[0042] 425 Heart rate sensor 426 Acceleration sensor

[0043] 50 Flexible belt 51 Fixed section

[0044] 52 Telescopic section 5***1*** Sleeve

[0045] 532 Slide 533 Linear resistor

[0046] 534 Electrical contact 90 Control box

[0047] 91 Passive receiver interface 92 Active receiver interface

[0048] 93 Display screen 94 Power interface

[0049] 99 Cover plate 200 Tripod Specific implementation manners

[0050] In order to more fully understand the technical content of the present invention, the technical solutions of the present invention will be further introduced and described below in conjunction with specific embodiments, but not limited thereto.

[0051] Such as Figures 1 to 3 **Note**: There seems to be a formatting issue in the original text where "531 Sleeve" in the translation should probably be "531 Shell" for better consistency. Also, the "***1***" in the translation of "531 Shell" is a placeholder for the correct number in the original text which might be a formatting error in the source. The above translation is done as accurately as possible based on the provided text.The first embodiment shown, the long-distance running detection system of the present invention, can be used for both test detection and regular practice detection. It includes a controller 10, a camera 20 connected to the controller 10 (fixed by a tripod 200), and an RFID card reader; the RFID card reader includes a passive receiver 31 and an active receiver 32; the passive receiver 31 is located on both sides of the runway end; the active receiver 32 is buried in the ground at the runway end; and several sports vests 40 with number tags are also included. The sports vests 40 have passive RFID cards 41 and active RFID cards 42 embedded therein. The passive RFID card 41 is in communication with the passive receiver 31, and the active RFID card 42 is in communication with the active receiver 32.

[0052] More specifically, there are four passive receivers, which are located on both sides of the runway end point and can be designed to be at different heights.

[0053] More specifically, it also includes a control box 90 for accommodating the controller 10 , and an upper end surface of the control box 90 is provided with a passive receiver interface 91 , an active receiver interface 92 , a display screen 93 and a power supply interface 94 .

[0054] More specifically, a cover plate 99 is hingedly provided on the upper end of the control box 90; one side of the cover plate 99 is hingedly connected to the control box 90, and the other side is snap-fitted. A handle (not shown) is also provided on the upper surface of the cover plate 99 for easy carrying.

[0055] More specifically, the controller 10 includes a microcontroller 11 disposed in a control box 90 , and a laptop or PC connected to the microcontroller 11 ; the camera 20 is connected to the laptop 21 (or PC).

[0056] In other embodiments, an infrared detection device can be added at the finish line. When triggered, it captures a camera image, identifies the runner by their number, and calculates their middle- and long-distance running scores. Finally, the infrared detection and camera results, the passive RFID results, and the active RFID results are compared, and the average of these three results is taken as the final score. This integration of three-way detection and sensing technology can significantly reduce measurement time errors and prevent missed runs.

[0057] like Figure 4 In the second embodiment shown, the active RFID card 42 includes a card housing 421 , an RFID circuit 422 disposed in the card housing 421 , a power supply circuit 423 connected to the RFID circuit 422 , and a single-chip microcomputer 424 connected to the power supply circuit 423 .

[0058] More specifically, the active RFID card 42 includes a heart rate sensor 425 connected to the single-chip microcomputer 424. The heart rate sensor 425 is used to detect the heart rate of the user. The active RFID card 42 is disposed at the collar (or chest) of the sports vest to be close to the skin; the heart rate sensor 425 is embedded in the surface of the card case 421 close to the human skin.

[0059] More specifically, the active RFID card 42 is also provided with an acceleration sensor 426 connected to the single-chip microcomputer 424, and a flexible belt 50 for surrounding the user's chest and / or abdomen; the flexible belt includes a fixed section 51 and a telescopic section 52 (which can be made of elastic band material).

[0060] More specifically, the telescopic section 52 is also connected in parallel with a sleeve 531 and a sliding piece 532 that are linearly slidably connected together. The single-chip microcomputer 424 is provided with an input end connected between the sleeve 531 and the sliding piece 532. At the connection of the sleeve 531 and the sliding piece 532, a linear resistor 533 is provided on one side and an electrical contact 534 is provided on the other side; the sliding between the sleeve 531 and the sliding piece 532 constitutes a change in the resistance value of the input end to detect the user's breathing volume. This structure can not only be used for students' examinations, but also for students' usual running exercises. Combining with the detection of the acceleration sensor, the running movements and breathing frequencies of the students' running can be matched. By feeding back the matching situation of the running movements and breathing frequencies to the user, it is beneficial for the user to know their own running habits and then make adaptive adjustments or modifications. The detection result of the breathing volume can also guide students to perform deep breathing exercises during middle and long-distance running, thereby improving the ability and performance of middle and long-distance running.

[0061] When this embodiment works specifically, the flexible belt 50 is embedded in the sports vest. After the user wears it, it will adhere to the user's (i.e., the student examinee's) chest. When running, the user's breathing will drive the sliding of the sliding piece. Through the conversion of the chest circumference size, the breathing volume can be calculated, and it can also detect whether the user takes off the sports vest illegally during the exercise process (because when taking it off, the sliding piece will be moved outwards to the maximum extent, exceeding the set maximum resistance value, resulting in alarm data or an alarm sound).

[0062] As Figure 5 shown, the middle and long-distance running detection method of the present invention includes the above-mentioned middle and long-distance running detection system, and also includes a wireless transmitting command device and an infrared detection device located at the finish line. When specifically implemented, the following steps can be adopted:

[0063] Step 1: The tester gets on the track and gets ready for the start.

[0064] Step 2: The camera (i.e., the camera) captures the face of the athlete (i.e., the user) and the numbered athlete's vest to identify the athlete.

[0065] Step 3: The wireless starting device at the starting point receives the signal that the device at the ending point is ready.

[0066] Step 4: The starter activates the starting controller. The starting device gives an automatic voice command and simultaneously starts the device at the ending point.

[0067] Step 5: When the wireless starting device at the starting point receives an alarm from the infrared violation detection device, the wireless starting device automatically notifies the ending point to cancel the current timing and automatically recalls the testers who have started running through an automatic voice message. If there is no alarm, proceed to the next step.

[0068] Step 6: Each time the user passes the card reader at the ending point, the card readers of active RFID and passive RFID simultaneously and automatically identify and record the number of laps the user has run.

[0069] Step 7: The camera at the ending point captures the image of the athlete (i.e., the user) at the sprinting moment. The card readers of active RFID and passive RFID judge based on the communication duration, and the communication time with the shortest duration is taken as the time when the user reaches the ending point.

[0070] Step 8: Lock and display the timing result and ranking.

[0071] Step 9: After all the athletes in this group have crossed the ending point, stop automatically or press the stop button manually.

[0072] Step 10: Import the timing images and playback them on the computer. After confirming the results, go back to Step 1 to start the timing for the next group of examinations.

[0073] Detection principle: The user's ending timing is first done through RFID. First, the passive RFID is used. If there is no record in the passive RFID reader / writer, then the record of the active RFID reader / writer is called, and the time when the signal of the active RFID card is the strongest is calculated and used as the time when the examinee crosses the finish line. The camera photo at the time of crossing the finish line is retrieved, and the photo is sent to the face recognition device to output the examinee's information. At this time, the system stores the time and photo when the examinee crosses the finish line. Because during middle and long-distance running, the user will pass through the ending point multiple times, and each time passing through will be recorded to calculate the number of times passed through.

[0074] More specifically, it also includes a step of detecting and matching the step distance and breathing frequency. Compare the actually detected data of the step distance and breathing frequency with the step distance and breathing frequency reference model set in the controller or server to obtain the adjustment data, and output it through a display screen or a speaker, etc., or send it to the mobile phone of the user at the time of registration through the server. More specifically, the step distance and breathing frequency reference model includes a fixed model and a transition model. The fixed model is generated according to the user's weight, height, and age. The filtering model is to divide the difference value between the user's existing step distance and breathing frequency data and the data of the fixed model by the growth cycle preset by the user (such as 21 days) to obtain the single adjustment amount; according to the existing step distance and breathing frequency data, add a single adjustment amount every day, every two days, or every three days, such as forming 21, 10, or 7 transition models required for 21 consecutive days, so as to provide 21, 10, or 7 reference step distance and breathing frequency reference models for the user. Such a reference model is closer to the minute changes of the user every day and is very likely to bring about qualitative changes through the accumulation of time. More specifically, during the adjustment period, each single adjustment amount in the early stage is used for a longer time than in the later stage, so that the user can have more time in the early stage to adapt to the actions required for the adjustment. When practicing specifically, it can be: when the user raises the left leg or the right leg, start inhaling, run 3 steps, then exhale, then run 3 steps, and then inhale. The starting actions of inhaling and exhaling are synchronized with the leg-lifting action. After adjustment and through examination and detection, when the user's breathing action and running action reach the maximum efficiency (that is, the user runs the fastest and consumes the least physical energy), record it as the best reference model, and then use this best reference model as a reference to guide the user to practice middle and long-distance running. Finally, form muscle memory and practice better middle and long-distance running results.

[0075] The present invention also discloses a middle and long-distance running practice method, which uses an active RFID card. It includes a heart rate sensor connected to the single-chip microcomputer. The heart rate sensor is used to detect the user's heart rate. The active RFID card is arranged at the collar of the sports vest to be close to the skin. The heart rate sensor is embedded in the surface of the card shell close to the human skin. The active RFID card is also provided with an acceleration sensor connected to the single-chip microcomputer, and a flexible belt for surrounding the user's chest and / or abdomen. The flexible belt includes a fixed section and a telescopic section. The telescopic section is also connected in parallel with a sleeve and a sliding piece slidably connected in a straight line. The single-chip microcomputer is provided with an input end connected between the sleeve and the sliding piece. At the connection of the sleeve and the sliding piece, a linear resistor is arranged on one side and an electrical contact is arranged on the other side. The sliding between the sleeve and the sliding piece constitutes a change in the resistance value of the input end to detect the user's breathing volume. To match the running action and breathing frequency of the student's running exercise. The feedback of the matching situation of the running action and breathing frequency is sent to the user. It can help the user know their running habits and then make adaptive adjustments or modifications.

[0076] The detection result of the breathing volume can also guide students to practice deep breathing during middle and long-distance running, thereby improving the ability and performance of middle and long-distance running.

[0077] More specifically, the middle and long-distance running practice method adopts other structures of the middle and long-distance running detection system in Embodiment 1 or Embodiment 2.

[0078] More specifically, there is also a matching relationship between the standard breathing frequency and the running times, which is set to inhale once every 3-7 steps and exhale once every 3-7 steps.

[0079] More specifically, there is also a detection and matching step for the step length and breathing frequency. Compare the data of the actually detected step length and breathing frequency with the step length and breathing frequency reference model set in the controller or server, and thus obtain the adjustment data, and output it through a display screen or a speaker, etc., or send it to the mobile phone terminal when the user registers through the server.

[0080] More specifically, the step length and breathing frequency reference model includes a fixed model and a transition model. The fixed model is generated according to the user's weight, height, and age. The filtering model is the difference value between the user's existing step length and breathing frequency data and the data of the fixed model, and then divided by the user's preset growth cycle (such as 21 days) to obtain a single adjustment amount. According to the existing step length and breathing frequency data, add a single adjustment amount every day, every two days, or every three days. For example, form 21, 10, or 7 transition models required for 21 consecutive days, so as to provide 21, 10, or 7 reference step length and breathing frequency reference models for the user. Such a reference model is closer to the daily micro-changes of the user and is very likely to bring about qualitative changes through the accumulation of time.

[0081] More specifically, during the adjustment period, the amount of each single adjustment in the early stage is used for a longer time than in the later stage, so that users have more time in the early stage to adapt to the actions required for adjustment. During specific practice, it can be as follows: when the user raises the left leg or the right leg, start inhaling, run 3 steps, then exhale, then run 3 steps, and then inhale. The starting actions of inhaling and exhaling are both synchronized with the leg-lifting action. After adjustment and through examination and testing, when the user's breathing action and running action reach the maximum efficiency (that is, the user runs the fastest and consumes the least physical energy), it is recorded as the best reference model, and then the best reference model is used as a reference to guide the user to practice middle and long-distance running. Finally, muscle memory is formed to practice better middle and long-distance running results.

[0082] In summary, the present invention adopts a sports vest with a number plate and an RFID card, so that when users (i.e., students) take the middle and long-distance running exam, the exam time can be detected through the RFID electronic identification, and the identity of the students can also be identified through the number plate for quick verification, and then recorded in the exam system in time after verification. In this way, a low-pixel camera can be used to reduce costs. It can record the portrait of the user when static, and when running, identify the identity of the user with a large-font number plate to review the timing detection of the user's middle and long-distance running to prevent errors. And passive RFID cards and active RFID cards are adopted to ensure the reliability of the detection of the middle and long-distance running exam results and further prevent errors. Further, a control box with a hinged cover plate is adopted, which is convenient for moving during handling and is also easy to install and connect quickly. Further, the active RFID card adopts a heart rate sensor, which can detect the user's heart rate and conduct in-depth analysis of the user's running. The active RFID card further adopts a flexible belt, which is beneficial to placing the heart rate sensor close to the human skin. The sliding connection of the sleeve and the sliding piece forms a variable resistor, which can detect the user's breathing volume. When the linear resistance exceeds a certain set value or is disconnected, it can be detected that the user takes off the sports vest to prevent cheating during the exam.

[0083] The above only uses examples to further illustrate the technical content of the present invention to make it easier for readers to understand, but it does not mean that the implementation mode of the present invention is limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. Middle and long-distance running detection method, using a middle and long-distance running detection system, the middle and long-distance running detection system includes a controller, and also includes a camera and an RFID card reader device connected to the controller; the RFID card reader device includes a passive receiver and an active receiver; the passive receiver is arranged on both sides of the runway end; the active receiver is buried in the ground at the runway end; it also includes a number of sports vests with number plates attached, and passive RFID cards and active RFID cards are embedded in the sports vests; characterized in that It also includes a wireless command - issuing device and an infrared detection device installed at the finish point. In specific implementation, the following steps are adopted: Step 1: The tester gets on the track and gets ready for the start. Step 2: The camera captures the user's face and the numbered athlete's vest to identify the athlete. Step 3: The wireless command - issuing device at the starting point receives the signal that the device at the finish point is ready. Step 4: The starter activates the starting controller. The starting device gives an automatic voice command and at the same time starts the device at the finish point. Step 5: When the wireless command - issuing device at the starting point receives an alarm from the infrared violation detection device, the wireless command - issuing device automatically notifies the finish point to cancel the current timing and automatically recalls the running tester by voice. If there is no alarm, proceed to the next step. Step 6: Each time the user passes the card reader at the finish point, the active RFID and passive RFID card readers automatically identify and record the number of laps the user has run. Step 7: The camera at the finish point captures the image of the user's sprint moment. The active RFID and passive RFID card readers judge based on the communication duration, and take the communication time with the shortest duration as the time when the user reaches the finish point. Step 8: Lock and display the timing result and ranking. Step 9: After all the athletes in this group have crossed the finish line, stop automatically or press the stop button manually. Step 10: Import the timing result and image for playback in the computer. After confirming the result, go back to Step 1 to start the timing for the next group of examinations. Among them, the user's finish - point timing is first done through RFID. First, use passive RFID. If there is no record in the passive RFID reader, then call the record of the active RFID reader, and calculate the time when the signal of the active RFID card is the strongest, and take this as the time when the examinee crosses the finish line. Retrieve the camera photo of the crossing - the - finish - line time, send the photo to the face recognition device to output the examinee information, and the system stores the examinee's crossing - the - finish - line time and photo at this time. It also includes a step of detecting and matching the step distance and breathing frequency. Compare the actually detected data of the step distance and breathing frequency with the step - distance breathing - frequency reference model set in the controller or server to obtain the adjustment data, and output it through the display screen or speaker, or send it to the mobile phone terminal when the user registers through the server. The step - distance breathing - frequency reference model includes a fixed model and a transition model. The fixed model is generated according to the user's weight, height, and age. The transition model is obtained by dividing the difference value between the user's existing step - distance breathing - frequency data and the data of the fixed model by the preset growth period of the user to get the single - adjustment amount. According to the existing step - distance breathing - frequency data, add a single - adjustment amount every day, every two days, or every three days. During the adjustment period of the step - distance breathing - frequency reference model, the use time of each single - adjustment amount in the early stage is longer than that in the later stage, so that the user has more time in the early stage to adapt to the actions required for the adjustment.

2. The middle and long distance running detection method according to claim 1, wherein There are four passive receivers, which are respectively installed on both sides of the runway finish point.

3. The middle and long distance running detection method according to claim 2, wherein It also includes a control box for accommodating the controller. The upper end face of the control box is provided with a passive receiver interface, an active receiver interface, a display screen, and a power supply interface.

4. The middle and long distance running detection method according to claim 3, characterized in that, A cover plate is also hinged to the upper end of the control box; one side of the cover plate is hinged to the control box, and the other side is connected by a buckle.

5. The middle and long-distance running detection method according to claim 4, characterized in that, A handle is further provided on the upper surface of the cover plate.

6. The middle and long-distance running detection method according to claim 1, wherein The controller includes a microcontroller disposed in the control box, a laptop or a PC connected to the microcontroller; the camera is connected to the laptop or the PC.

7. The middle and long-distance running detection method according to claim 1, characterized in that The active RFID card includes a card shell, an RFID circuit disposed in the card shell, a power supply circuit connected to the RFID circuit, and a single-chip microcomputer connected to the power supply circuit.

8. The middle and long distance running detection method according to claim 7, characterized in that, The active RFID card further includes a heart rate sensor connected to the single-chip microcomputer, the heart rate sensor is used to detect the heart rate of the user, and the active RFID card is disposed at the collar of the sports vest to be close to the skin; the heart rate sensor is embedded in the surface of the card shell close to the human skin.

9. The middle and long-distance running detection method according to claim 7 or 8, characterized in that, The active RFID card is further provided with an acceleration sensor connected to the single-chip microcomputer, and a flexible belt for surrounding the user's chest and / or abdomen; the flexible belt includes a fixed section and a telescopic section; a sleeve and a sliding piece linearly slidably connected in parallel are further provided in the telescopic section, the single-chip microcomputer is provided with an input end connected between the sleeve and the sliding piece, a linear resistor is provided on one side at the connection between the sleeve and the sliding piece, and an electrical contact is provided on the other side; the sliding between the sleeve and the sliding piece constitutes a change in the resistance value of the input end to detect the breathing volume of the user.

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