Anti-interference automatic circle counting method

Abstract

The invention discloses an anti-interference automatic circle counting method, which comprises the following steps that: firstly, after a monitor of a medical care terminal and a signal transmitter of a patient terminal are successfully bound and are started, the monitor of the medical care terminal identifies whether a patient enters a six-minute walking test process or not; thirdly, starting a six-minute walking test process, sending information by a signal transmitter at the patient end, monitoring the strength of an rssi number and whether a distance sensor is triggered or not by a monitor at the medical care end so as to obtain real-time step number information and time count, and recording and calculating the motion information of the current circle; then, the six-minute walking test is finished, and the movement distance of the patient less than the last circle is calculated; and finally, obtaining the total movement distance of the whole six-minute walking test. According to the anti-interference automatic circle counting method, the problem that the circle cannot be automatically counted in a six-minute walking test is solved, the total movement distance is obtained by calculating the movement distance of the last circle through double anti-interference of the rssi signal intensity and the sensor, and the accuracy and the efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the field of medical rehabilitation, and in particular relates to an anti-interference automatic lap counting method. Background Art

[0002] In previous six-minute walk tests, patients usually walked back and forth in hospital corridors due to venue limitations. During the reciprocating exercise, doctors were often required to manually record the number of laps the patient walked and calculate the distance the patient moved.

[0003] Some semi-automatic lap counting solutions often require doctors to clear the corridor of people before semi-automatic lap counting can be achieved, which is extremely inconvenient; at the same time, interference signals may cause inaccurate exercise data recording, resulting in inaccurate final data. Summary of the invention

[0004] Purpose of the invention: In order to overcome the above shortcomings, the purpose of the present invention is to provide an interference-resistant automatic lap counting method. Compared with the traditional detection method, it mainly solves and circumvents the problem of being unable to automatically count laps during the six-minute walking test. Through the dual anti-interference of RSSI signal strength and distance sensor, combined with the calculation of the last lap movement distance, the movement distance of the walking test is obtained, thereby improving the accuracy and efficiency.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention provides an anti-interference automatic lap counting method, comprising the following steps: first, after the monitor on the medical side and the signal transmitter on the patient side are successfully bound and turned on, the lap length is set according to the venue, and the monitor on the medical side identifies whether the patient has entered the six-minute walking test process; then, the six-minute walking test process starts, the signal transmitter on the patient side sends step counting information, RSSI signal and distance signal, and the monitor on the medical side monitors the RSSI signal strength and whether the distance sensor is triggered to obtain real-time step information and time count, and record and calculate the motion information of the current lap; then, at the end of the six-minute walking test, the monitor on the medical side calculates the patient's last less than one lap of motion distance based on the motion information of the last complete lap and the number of steps in the last less than one lap of motion; finally, the monitor on the medical side combines the motion information of all complete laps with the motion information of the last less than one lap to derive the patient's total motion distance in the entire six-minute walking test.

[0006] Furthermore, the signal transmitter at the patient end of S1) is a patient end slave, including a slave signal module, a pedometer module, a slave power management unit and a battery; the battery is connected to the slave power management unit for power supply; the slave power management unit is connected to the slave signal module and the pedometer module to ensure the voltage stability of the two; the pedometer module transmits the pedometer information to the slave signal module; the slave signal module is used to send the pedometer information, RSSI signal and distance signal to the monitor at the medical end. The modular setting is convenient for troubleshooting and solving problems after they occur.

[0007] Furthermore, the monitor of the medical and nursing end in S1) is a medical and nursing end host, including a host signal module, a host power management unit, a calculation unit, a distance sensor and a USB communication unit; the host power management unit is connected to the USB communication unit and the calculation unit to ensure the voltage stability of the two; the host signal module is used to receive the step counting information and RSSI signal sent by the slave signal module; the host signal module transmits the step counting information and RSSI signal strength to the calculation unit; the distance sensor is used to receive the distance signal sent by the slave signal module, and if triggered, transmits the signal to the calculation unit; the USB communication unit is connected to the calculation unit to transmit its results to an external PC; the calculation unit is used to analyze and calculate the patient's motion parameters during the entire six-minute walking test, including start and stop, number of laps, stride, step frequency, pace and total distance; the distance sensor is used to assist in sensing whether the patient has passed the starting point or the middle point and has reached the second judgment of the lap count. The RSSI signal strength and distance signal sent by the slave signal module are received by the host signal module and the distance sensor respectively, and double verification is performed to ensure reliability.

[0008] Furthermore, the specific operation of the S1) medical and nursing monitor identifying whether to enter the six-minute walk test process is as follows: identifying whether the medical and nursing monitor and the patient's signal transmitter are both in working state; if both are in working state, the six-minute walk test process is entered. This step ensures the accuracy of the start time of the six-minute walk test and the correct recording of the subsequent lap duration.

[0009] Furthermore, the specific operation of triggering the acquisition of real-time step information and time count in S2) is: the signal transmitter on the patient side sends step information, RSSI signal strength and distance signal to the monitor on the medical side, and the monitor on the medical side starts to monitor the RSSI signal strength and whether the distance sensor is triggered, and obtains real-time step information and time count at the same time; when the monitor on the medical side detects that the RSSI signal strength meets the threshold range and the distance sensor is triggered synchronously, it records the number of complete circles plus one, and records the circle duration and exercise steps in the current circle of exercise. The RSSI signal value is limited by the influence of the environment, and the actual fluctuation is obvious. It is easy to make a false touch if it is judged only by the RSSI signal value; adding a distance sensor for secondary verification ensures the accuracy of each reading.

[0010] Furthermore, the specific operation of calculating the motion information of the current lap in S2) is: calculating the pace, stride and frequency of the current lap, Pace = lap time ÷ lap length; Stride length = circle length ÷ number of steps; Cadence = number of steps ÷ lap time.

[0011] Calculate the pace, stride length and frequency of a complete circle so as to prepare for the subsequent calculation of the exercise distance of an incomplete circle.

[0012] Furthermore, the operation of completing the last circle length of less than one circle in S3) is: calculating the average stride length of all complete circles, if the error between the average stride length and the stride length of the last complete circle does not exceed 5%, then: The stride length of the last less than one lap = the mean stride length; otherwise: The stride length of the last less than one circle = the stride length of the last full circle movement; The final circle length of less than one circle is as follows: The length of the last circle = the number of steps * the stride length.

[0013] The length of the last circle is calculated by combining the movement information of the last complete circle with the number of steps in the last circle, thereby improving efficiency.

[0014] Furthermore, the operation of completing the total movement distance in S4) is: Total exercise distance = circle length * number of complete circles + length of the last circle that is less than one circle.

[0015] It can be seen from the above technical solution that the present invention has the following beneficial effects: The purpose of the present invention is to provide an interference-resistant automatic lap counting method. Compared with the traditional detection method, the present invention mainly solves and circumvents the problem of being unable to automatically count laps during a six-minute walking test. Through the dual anti-interference of RSSI signal strength and distance sensor, combined with the calculation of the last lap movement distance, the movement distance of the walking test is obtained, thereby improving the accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall flow chart of an anti-interference automatic lap counting method according to the present invention; Figure 2 A simplified diagram of the patient-side slave device of an anti-interference automatic lap counting method according to the present invention; Figure 3 A simplified diagram of the medical host configuration of an anti-interference automatic lap counting method according to the present invention; Figure 4 A diagram showing the structure of an apparatus for an anti-interference automatic lap counting method according to the present invention; Figure 5 This is a method demonstration diagram of an anti-interference automatic lap counting method described in the present invention. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] Example 1 In this embodiment, Figure 1 The present invention discloses an anti-interference automatic lap counting method, comprising the following steps: S1): After the medical monitor and the patient's signal transmitter are successfully bound and turned on, the medical monitor identifies whether the patient has entered the six-minute walk test process according to the circle length set in the venue; S2): The six-minute walking test process begins. The signal transmitter on the patient side sends step information, RSSI signal and distance signal. The monitor on the medical side monitors the RSSI signal strength and whether the distance sensor is triggered to obtain real-time step information and time count, and record and calculate the motion information of the current lap; S3): At the end of the six-minute walk test, the medical monitor calculates the patient's last exercise distance in less than one lap based on the exercise information of the last complete lap and the number of steps in the last less than one lap. S4): The monitor at the medical end combines the movement information of all complete laps with the movement information of the last less than one lap to derive the total movement distance of the patient in the entire six-minute walk test.

[0019] Example 2 On the basis of Example 1, in this example, Figure 1 , Figure 2 and Figure 4 The present invention discloses an anti-interference automatic lap counting method, wherein the signal transmitter at the patient end S1) is a patient end slave, including a slave signal module, a pedometer module, a slave power management unit and a battery; the battery is connected to the slave power management unit for power supply; the slave power management unit is connected to the slave signal module and the pedometer module to ensure that the voltage of the two is stable; the pedometer module transmits the pedometer information to the slave signal module; the slave signal module is used to send the pedometer information, RSSI signal and distance signal to the monitor at the medical end.

[0020] It should be noted that the power source of the signal transmitter is not limited to dry batteries, and the circuit can be modified to use an external adapter, a power bank, a built-in rechargeable battery, etc. for power supply; the pedometer module is only a preferred method for step detection, and the number of steps can also be acquired by using a bracelet, watch, mobile phone, etc. with a pedometer function.

[0021] In this embodiment, Figure 1 , Figure 3 and Figure 4 , the monitor of the medical and nursing end in S1) is a medical and nursing end host, including a host signal module, a host power management unit, a calculation unit, a distance sensor and a USB communication unit; The host power management unit is connected to the USB communication unit and the calculation unit to ensure the voltage stability of the two; the host signal module is used to receive the pedometer information and RSSI signal sent by the slave signal module; the host signal module transmits the pedometer information and RSSI signal strength to the calculation unit; the distance sensor is used to receive the distance signal sent by the slave signal module, and if triggered, the signal is transmitted to the calculation unit; the USB communication unit is connected to the calculation unit to transmit its result to an external PC; the calculation unit is used to analyze and calculate the patient's motion parameters during the entire six-minute walking test, including start and stop, number of laps, stride, step frequency, pace and total distance; the distance sensor is used to assist in sensing whether the patient has passed the starting point or the middle point to reach the second lap judgment.

[0022] It should be noted that the data transmission of the monitor at the medical end is not limited to USB form, and the circuit can be modified to use Bluetooth, WIFI, lora, 4G / 5G and other forms for data interaction; the power source of the monitor at the medical end is not limited to USB power supply, and the circuit can be modified to use an external adapter, a power bank, a built-in rechargeable battery and other forms of power supply.

[0023] In this embodiment, Figure 1 In S1), the monitor of the medical nurse terminal identifies whether to enter the six-minute walk test process. The specific operation is as follows: Identify whether the monitor on the medical side and the signal transmitter on the patient side are both in working state; if both are in working state, enter the six-minute walk test process.

[0024] In this embodiment, Figure 1 and Figure 5 The specific operation of triggering the acquisition of real-time step count information and time count in S2) is: The signal transmitter on the patient side sends step information, RSSI signal strength and distance signal to the monitor on the medical side. The monitor on the medical side starts to monitor the RSSI signal strength and whether the distance sensor is triggered, and obtains real-time step information and time count at the same time; when the monitor on the medical side detects that the RSSI signal strength meets the threshold range and the distance sensor is triggered synchronously, it records the number of complete circles plus one, and records the lap duration and number of steps in the current circle of exercise.

[0025] It should be noted that the distance sensor is only a preferred detection method, and infrared tubes, infrared detectors, RFID detection, magnetic induction detection, visual detection and other forms can also be used to achieve corresponding functions; Bluetooth is a preferred signal transmitter at the patient end to transmit RSSI signals, and wireless modules with signal strength functions such as WiFi, Lora, Zigbee, etc. can also be used.

[0026] In this embodiment, Figure 1 The specific operation of calculating the motion information of the current lap in S2) is: calculating the pace, stride and frequency of the current lap, Pace = lap time ÷ lap length; Stride length = circle length ÷ number of steps; Cadence = number of steps ÷ lap time.

[0027] In this embodiment, Figure 1 , the operation of completing the last circle length of less than one circle in S3) is: calculating the average stride length of all complete circles, if the error between the average stride length and the stride length of the last complete circle does not exceed 5%, then: The stride length of the last less than one lap = the mean stride length; otherwise: The stride length of the last less than one circle = the stride length of the last full circle movement; The final circle length of less than one circle is as follows: The length of the last circle = the number of steps * the stride length.

[0028] In this embodiment, Figure 1 , the operation of completing the total movement distance in S4) is: Total exercise distance = circle length * number of complete circles + length of the last circle that is less than one circle.

[0029] The working principle of the above embodiment is: The present invention discloses an anti-interference automatic lap counting method. First, after the monitor of the medical staff end and the signal transmitter of the patient end are successfully bound and turned on, the lap length is set according to the site, and the monitor of the medical staff end identifies whether the patient enters the six-minute walking test process; then, the six-minute walking test process starts, the signal transmitter of the patient end sends step counting information, RSSI signal and distance signal, and the monitor of the medical staff end monitors the RSSI signal strength and whether the distance sensor is triggered to obtain real-time step information and time count, and record and calculate the motion information of the current lap; then, at the end of the six-minute walking test, the monitor of the medical staff end calculates the patient's last less than one lap movement distance based on the motion information of the last complete lap and the number of steps in the last less than one lap movement; finally, the monitor of the medical staff end combines the motion information of all complete laps with the motion information of the last less than one lap to derive the patient's total motion distance in the entire six-minute walking test.

[0030] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. The anti-interference automatic lap counting method according to claim 1, characterized in that: The steps include: S1): After the medical monitor and the patient's signal transmitter are successfully bound and turned on, the medical monitor identifies whether the patient has entered the six-minute walk test process according to the circle length set in the venue; S2): The six-minute walking test process begins. The signal transmitter on the patient side sends step information, RSSI signal and distance signal. The monitor on the medical side monitors the RSSI signal strength and whether the distance sensor is triggered to obtain real-time step information and time count, and record and calculate the motion information of the current lap; S3): At the end of the six-minute walk test, the medical monitor calculates the patient's last exercise distance in less than one lap based on the exercise information of the last complete lap and the number of steps in the last less than one lap. S4): The monitor at the medical end combines the movement information of all complete laps with the movement information of the last less than one lap to derive the total movement distance of the patient in the entire six-minute walk test.

2. The anti-interference automatic lap counting method according to claim 1, characterized in that: The signal transmitter at the patient end in S1) is a patient end slave, including a slave signal module, a step counting module, a slave power management unit and a battery; The battery is connected to the slave power management unit for power supply; the slave power management unit is connected to the slave signal module and the pedometer module to ensure the voltage stability of the two; the pedometer module transmits the pedometer information to the slave signal module; the slave signal module is used to send the pedometer information, RSSI signal and distance signal to the monitor at the medical end.

3. The anti-interference automatic lap counting method according to claim 2, characterized in that: The monitor of the medical and nursing end in S1) is a medical and nursing end host, including a host signal module, a host power management unit, a calculation unit, a distance sensor and a USB communication unit; The host power management unit is connected to the USB communication unit and the calculation unit to ensure the voltage stability of the two; the host signal module is used to receive the step counting information and RSSI signal sent by the slave signal module; the host signal module transmits the step counting information and RSSI signal strength to the calculation unit; the distance sensor is used to receive the distance signal sent by the slave signal module, and transmits the signal to the calculation unit if triggered; the USB communication unit is connected to the calculation unit to transmit its result to an external PC; The computing unit is used to analyze and calculate the patient's motion parameters during the entire six-minute walk test, including start-stop, number of laps, stride length, stride frequency, pace, and total distance; The distance sensor is used to assist in sensing whether the patient has passed the starting point or the middle point to reach the second lap determination.

4. The anti-interference automatic lap counting method according to claim 1, characterized in that: The specific operation of the monitor at the medical and nursing end in S1) identifying whether to enter the six-minute walk test process is as follows: Identify whether the monitor on the medical side and the signal transmitter on the patient side are both in working state; if both are in working state, enter the six-minute walk test process.

5. The anti-interference automatic lap counting method according to claim 1, characterized in that: The specific operation of triggering the acquisition of real-time step count information and time count in S2) is: The signal transmitter on the patient side sends step information, RSSI signal strength and distance signal to the monitor on the medical side. The monitor on the medical side starts to monitor the RSSI signal strength and whether the distance sensor is triggered, and obtains real-time step information and time count at the same time; When the monitor on the medical end detects that the RSSI signal strength meets the threshold range and the distance sensor is triggered synchronously, the number of complete circles is recorded plus one, and the circle duration and number of steps in the current circle of exercise are recorded.

6. The anti-interference automatic lap counting method according to claim 5, characterized in that: The specific operation of calculating the motion information of the current lap in S2) is: calculating the pace, stride and frequency of the current lap, Pace = lap time ÷ lap length; Stride length = circle length ÷ number of steps; Cadence = number of steps ÷ lap time.

7. The anti-interference automatic lap counting method according to claim 6, characterized in that: The operation of completing the last circle length of less than one circle in S3) is: calculating the average stride length of all complete circles. If the error between the average stride length and the stride length of the last complete circle does not exceed 5%, then: The stride length of the last less than one lap = the mean stride length; otherwise: The stride length of the last less than one circle = the stride length of the last full circle movement; The final circle length of less than one circle is as follows: The length of the last circle = the number of steps * the stride length.

8. The anti-interference automatic lap counting method according to claim 7, characterized in that: The operation of completing the total movement distance in S4) is: Total exercise distance = circle length * number of complete circles + length of the last circle that is less than one circle.

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