CN111803075B - Method, device, equipment and computer storage medium for detecting lower limb injury - Google Patents
Method, device, equipment and computer storage medium for detecting lower limb injury Download PDFInfo
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Abstract
The invention discloses a method, a device and equipment for detecting lower limb injury and a computer storage medium, wherein the method for detecting lower limb injury comprises the following steps: obtaining a target speed value corresponding to a lower limb when the lower limb touches the ground; determining a target damage type according to the target speed value; and generating damage prompt information according to the target damage type. The target speed value of the lower limb of the user is obtained, the corresponding target damage type can be determined relatively simply and conveniently according to the target speed value, and finally, damage prompt information can be generated according to the target damage type, so that feedback of detection conditions can be carried out, and the user can adjust the wrong movement gesture in time according to the damage prompt information.
Description
Technical Field
The invention relates to the technical field of automatic detection, in particular to a method, a device, equipment and a computer storage medium for detecting lower limb injury.
Background
People usually exercise their body through exercise. In the process of exercise, the lower limbs of the human body bear impact force which is several times that of the human body when the human body is landed, and if the user moves by using the wrong exercise posture, serious damage to the lower limbs, particularly to the joints of the lower limbs, can be caused for a long time.
Therefore, whether the movement gesture is wrong or not can be judged by detecting the position and gesture change condition of the lower limbs of the human body during movement. The common detection method is to measure the impact force of the human lower limb on the ground by detecting the sole pressure, so that whether the impact force causes lower limb injury or not can be judged, but the detection method is not easy to realize, the sole pressure detection cost is high, and the movement experience of a user can not be influenced while the detection accuracy can not be ensured.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a method for detecting the damage of the lower limb, which can simply realize the detection of the damage of the lower limb, accurately evaluate the detection result and feed back in real time so that a user can adjust the wrong movement posture in time.
The invention also provides a device for detecting the injury of the lower limb.
The invention also provides detection control equipment for the lower limb injury.
The invention also provides a computer storage medium.
According to an embodiment of the first aspect of the present invention, a method for detecting a lower limb injury, the method comprises:
obtaining a target speed value corresponding to a lower limb when the lower limb touches the ground;
determining a target damage type according to the target speed value;
And generating damage prompt information according to the target damage type.
The method for detecting the lower limb injury has at least the following beneficial effects: the target speed value corresponding to the lower limb of the user when the user touches the ground is obtained, the target damage type can be determined according to the target speed value, the detection of the damage to the lower limb can be simply realized, damage prompt information can be generated according to the target damage type, the accurate evaluation of the detection result can be realized, and real-time feedback can be carried out, so that the user can timely adjust the wrong movement posture.
According to some embodiments of the present invention, the obtaining a target speed value corresponding to a lower limb touching the ground includes: acquiring a first speed value corresponding to a thigh during touchdown and a second speed value corresponding to a shank during touchdown; and calculating a third speed value and an impact angle corresponding to the knee joint according to the first speed value and the second speed value.
According to some embodiments of the invention, the determining the target lesion type according to the target speed value includes: acquiring a first impact threshold value and a second impact threshold value; and determining a target damage type according to the third speed value, the first impact threshold value, the impact angle and the second impact threshold value.
According to some embodiments of the invention, the method further comprises: acquiring a first preset threshold value and a second preset threshold value; and determining a target damage type according to the first speed value and the first preset threshold value, and the second speed value and the second preset threshold value.
According to some embodiments of the invention, the determining the target damage type according to the third speed value and the first impact threshold, the impact angle and the second impact threshold, the determining the target damage type according to the first speed value and the first preset threshold, the second speed value and the second preset threshold, includes: judging whether the third speed value is larger than the first impact threshold value or not and whether the impact angle is larger than the second impact threshold value or not, and determining that the injury type corresponding to the third speed value and the impact angle is a knee joint injury type when the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value; judging whether the first speed value is larger than the first preset threshold value, and determining that the target injury type corresponding to the first speed value is a knee joint injury type when the first speed value is larger than the first preset threshold value; judging whether the second speed value is larger than the second preset threshold value, and determining that the target injury type corresponding to the second speed value is an ankle injury type when the second speed value is larger than the second preset threshold value.
According to some embodiments of the invention, the generating the damage prompting information according to the target damage type includes: when the target injury type is a knee joint injury type, generating knee joint injury prompt information so as to feed back knee joint detection conditions to a user; and when the target injury type is the ankle injury type, generating ankle injury prompt information so as to feed back ankle detection conditions to a user.
According to some embodiments of the invention, after generating the damage prompt information according to the target damage type, the method further includes: acquiring the recording times of the damage prompt information, and acquiring a preset warning threshold; judging whether the recording times are larger than the preset warning threshold value or not; and when the recording times are greater than the preset warning threshold value, warning prompt information is generated so as to feed back the current damage condition to the user.
A device for detecting a lower limb injury according to an embodiment of the second aspect of the present invention, the device comprising:
the acquisition module is used for acquiring a target speed value corresponding to the lower limb when the lower limb touches the ground;
the detection model is used for determining a target damage type according to the target speed value;
and the feedback module is used for generating damage prompt information according to the target damage type.
The device for detecting the damage of the lower limb has at least the following beneficial effects: through the detection device for the injury of the lower limbs, the target speed value corresponding to the lower limbs of the user when the user touches the ground can be obtained, the target injury type can be determined according to the target speed value, the detection of the injury of the lower limbs can be simply realized, the injury prompt information can be generated according to the target injury type, the accurate evaluation of the detection result can be realized, and real-time feedback can be carried out, so that the user can timely adjust the wrong movement gesture.
According to a third aspect of the present invention, a detection control apparatus for lower limb injury includes:
at least one processor, and,
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of detecting a lower limb injury according to the first aspect of the invention.
The detection control equipment for the lower limb injury has at least the following beneficial effects: through the detection control equipment for the damage of the lower limbs, the target speed value corresponding to the lower limbs of the user when the lower limbs are contacted with the ground can be obtained, the target damage type can be determined according to the target speed value, the detection of the damage of the lower limbs can be simply realized, damage prompt information can be generated according to the target damage type, the accurate evaluation of the detection result can be realized, and real-time feedback can be carried out, so that the user can timely adjust the wrong movement gesture.
According to an embodiment of the fourth aspect of the present invention, the computer-readable storage medium stores computer-executable instructions for causing a computer to perform the method for detecting a lower limb injury according to the first aspect of the present invention.
The computer-readable storage medium according to the embodiment of the invention has at least the following advantageous effects: through the computer readable storage medium, the target speed value corresponding to the lower limb of the user when the user touches the ground can be obtained, the target damage type can be determined according to the target speed value, the detection of the damage to the lower limb can be simply realized, the damage prompt information can be generated according to the target damage type, the accurate evaluation of the detection result can be realized, and real-time feedback can be carried out, so that the user can timely adjust the wrong movement posture.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a flow chart of a method for detecting lower limb injury according to an embodiment of the invention;
FIG. 2 is a flowchart of a method for obtaining a target speed value according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating feedback detection to a user according to an embodiment of the present invention;
FIG. 4 is a flow chart of feeding back the current damage condition to the user according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for detecting lower limb injury according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, a method for detecting damage to a lower limb according to an embodiment of the present invention includes:
and step S100, obtaining a target speed value corresponding to the lower limb in the ground contact.
The target speed value may be a value of acceleration and/or angular velocity of a lower limb of the user in a certain axial direction acquired in real time in the process of contacting the ground, the target speed value may be a plurality of target speed values, and the axial direction may be a preset direction of acceleration and/or angular velocity. The target speed value may be used to represent the impact experienced by the user's lower limb during exercise. The target speed value can be directly acquired by an attitude sensor arranged on the lower limb of the user, and can also be calculated according to the data acquired by the attitude sensor. Optionally, assuming that the target speed value is a value of acceleration of the thigh part of the user in the thigh direction when the thigh part touches the ground, the target speed value can be directly acquired by an attitude sensor arranged on the thigh; the target speed value is assumed to be a numerical value of the vertical upward angular speed when the knee joint part of the user touches the ground, the acceleration in a plurality of vertical directions can be acquired in real time through a posture sensor arranged on the lower limb, and the target speed value can be calculated by utilizing a calculation method of the joint angle according to the plurality of accelerations.
Step S110, determining the target damage type according to the target speed value.
The target injury types can be preset categories obtained by classifying according to lower limb injury conditions, and the target injury types can be multiple. The target speed value can be used for representing the impact condition of the lower limb of the human body in the movement process, so that the damage condition of the lower limb can be judged according to the impact condition, and if the damage condition of the lower limb occurs, the target damage type can be determined according to the damage condition. Optionally, assuming that the target injury type is a joint injury type, specifically may include a knee joint injury type and an ankle joint injury type, different target injury types may correspondingly bear different impact forces, and assuming that the impact force corresponding to the knee joint injury type is f 1 The target speed value is v 0 . Determining the target damage type according to the target speed value, and can be applied to v 0 The calculation is performed to obtain the corresponding impact force, for example: let us assume that according to velocity v 0 The acceleration a, a=dv can be calculated 0 Dt, impact force f 2 =ma, then according to v 0 The impact force of the lower limb joint is calculated to be f 2 (f 2 ＜f 1 ) The damage condition of the knee joint can be determined, so v is determined 0 The corresponding target injury type is knee joint injury type.
Step S120, generating damage prompt information according to the target damage type.
The injury prompt information can be information for feeding back the detected lower limb injury condition to the user, and the injury prompt information can be voice prompt information and/or visual prompt information. Different target injury types correspond to different lower limb injury conditions, so that corresponding injury prompt information can be generated according to each target injury type, and a detection result can be fed back to a user. Optionally, assuming that the target injury type is an ankle injury type, ankle injury prompt information may be generated to feed back to the user a detection situation in which ankle injury is detected. The prompt voice can be generated for feedback, and the prompt lamp can flash for feedback, so that the effects of timely reminding a user of adjusting wrong movement posture and protecting lower limbs from damage are achieved.
According to the method for detecting the damage of the lower limb, the target damage type can be determined and obtained by acquiring the target speed value corresponding to the lower limb of the user when the lower limb is contacted with the ground, the damage to the lower limb can be simply detected, the damage prompt information can be generated according to the target damage type, the accurate evaluation of the detection result can be realized, and real-time feedback can be carried out, so that the user can timely adjust the wrong exercise posture.
Referring to fig. 2, in some embodiments of the present invention, obtaining a target speed value corresponding to a lower limb when touching the ground includes:
step S200, a first speed value corresponding to the thigh during touchdown is obtained, and a second speed value corresponding to the shank during touchdown is obtained.
The first speed value may be an acceleration value along the thigh direction on the thigh part acquired in real time in the touchdown process, the second speed value may be an acceleration value along the shank direction on the shank part acquired in real time in the touchdown process, and the acceleration direction may be a vertical upward direction. Because the acceleration of the lower limb is large when the lower limb touches the ground, and a peak exists, the acquired acceleration peak on the thigh can be used as a first velocity value, and the acquired acceleration peak on the lower leg can be used as a second velocity value. Optionally, an acceleration value in the vertical upward direction, that is, a first velocity value, may be obtained by an attitude sensor disposed on the thigh; the acceleration value in the vertical upward direction, that is, the second velocity value can be obtained by an attitude sensor provided on the lower leg.
Step S210, according to the first speed value and the second speed value, a third speed value and an impact angle corresponding to the knee joint are calculated.
The third speed value may be an angular speed value corresponding to the knee joint in the process of touchdown; the impact angle may be a twist angle formed by the knee joint under the action of an external force. Under the action of the wrong movement posture, the knee joint is subjected to the action of external force, uncontrolled knee hyperextension and self-locking can possibly occur, and the knee joint is damaged; the self-locking process caused by the overstretching of the knee is faster, related data can be difficult to capture in the moment of self locking, or the capturing precision is not high, so the overstretching condition of the knee can be obtained by calculating according to the detected first speed value and the second speed value, and further the damage of the knee joint can be judged according to the overstretching condition of the knee. Alternatively, the third velocity value and the impact angle are calculated according to the first velocity value and the second velocity value, and may be obtained by a calculation formula of the joint angle. For example: assuming that the thigh part is A, the calf part is B, an inertial coordinate system O is set, and the postures of A, B relative to O are respectively obtained, namely a first calculated speed value is obtainedSecond calculated speed value->The pose of a with respect to B can be calculated, i.e. a third velocity value, which can be expressed as +.>Can be expressed as vector +.>Meaning A is about the axis ()>The direction of pointing) is rotated by an angle q >Is a modulus length) to B. Also because of->The result of multi-axis rotation (for example, the result of the joint rotating back and forth and then rotating left and right) is integrated, so that the third speed value and the impact angle can be determined by selecting the rotation angle (for example, the front and back rotation angle) relative to a fixed shaft. Specifically, assume that the knee joint flexion and extension axis is selected to be +.>An axis A is wound relative to B>The rotation angle of the shaft (i.e. the angle of impact) can be determined by the vector coordinate system of A, B>The axis projects to +.>The axis is the tangent plane of the normal line, and the angle between two projections of the tangent plane is calculated to represent the winding +.>The angle of rotation of the shaft, and thus the angle of impact, can be obtained. Can be indirectly calculated by acquiring a first velocity value and a second velocity value of thigh parts and shank parts of lower limbsAnd the knee overstretching condition can be simply, conveniently and quickly obtained by reaching a third speed value and an impact angle corresponding to the knee joint, and the damage condition of the knee can be accurately judged according to the knee overstretching condition, so that a more accurate detection result is obtained.
In some embodiments of the invention, determining the target lesion type from the target speed value comprises:
a third velocity value and a second impact threshold value are obtained. The first impact threshold may be a critical value corresponding to the third speed value, and the second impact threshold may be a critical value corresponding to the impact angle. Because the knee joint has a normal moving range, and the third speed value and the impact angle can both reflect the condition of the overstretching of the knee joint, the normal moving range of the knee joint can be represented by the first impact threshold value and the second impact threshold value, and whether the third speed value exceeds the first impact threshold value and the impact angle exceeds the second impact threshold value is respectively judged, so that whether the condition of the overstretching of the knee is judged. Alternatively, assume a third velocity value v 3 The corresponding first impact threshold value is m 1 The second impact threshold value corresponding to the impact angle omega is m 2 The above m can be obtained separately 1 And m 2 。
And determining the target damage type according to the third speed value, the first impact threshold value, the impact angle and the second impact threshold value. Because the normal knee joint movement angle is about 0-130 degrees, no negative angle exists in the walking process, or the negative angle is small, when the impact angle is the negative angle, the condition that the knee is overstretched can be determined at the knee part; when the third speed value exceeds the normal range, determining that the knee part has excessive impact; when the impact angle is a normal angle and the third velocity value is not out of the normal range, it can be determined that the knee portion is free from the over-extension condition and the over-impact condition. In order to enable the damage detection result to be more accurate, when the condition of overstretching of the knee and the condition of excessive impact exist simultaneously, the movement posture of the user can be determined to be wrong, the knee part is caused to exceed the corresponding normal movement range, and therefore the damage of the knee part can be determined. Optionally, when the third speed value and the impact angle both exceed the corresponding critical values, for example, assuming that the third speed value exceeds the first impact threshold and the impact angle exceeds the second impact threshold, it may be determined that the knee portion exceeds the normal range of motion, so that the knee injury condition in which the knee overstretch and the excessive impact exist simultaneously may be determined, and the target injury type may be determined according to the knee injury condition. Whether the third speed value and the impact angle are beyond the normal moving range or not is judged by acquiring the corresponding threshold value, so that whether the knee injury conditions of overstretching and excessive impact caused by the wrong movement posture or not can be judged, when the knee injury conditions exist, the corresponding target injury type can be determined, and the detection conditions can be fed back more accurately.
In some embodiments of the present invention, the method of determining a target lesion type from a target speed value further comprises: and acquiring a first preset threshold value and a second preset threshold value. The first preset threshold may be a critical value corresponding to a preset first speed value, and the second preset threshold may be a critical value corresponding to a preset second speed value. Because the thigh part and the shank part have normal moving ranges, and the first speed value and the second speed value can respectively reflect the moving conditions of the thigh part and the shank part when the thigh part and the shank part are touched, the normal moving ranges of the thigh part and the shank part can be represented by a first preset threshold value and a second preset threshold value, whether the first speed value exceeds the first preset threshold value or not is respectively judged, and whether the second speed value exceeds the second preset threshold value or not is judged, so that whether the conditions of thigh injury and shank injury caused by wrong moving postures exist or not can be judged. Alternatively, assume that the first preset threshold is n 1 The second preset threshold value is n 2 The above n can be obtained separately 1 And n 2 。
And determining the target damage type according to the first speed value and the first preset threshold value, and the second speed value and the second preset threshold value. Optionally, if the first speed value exceeds a first preset threshold, it may be determined that the thigh position exceeds the normal activity range, so that it may be determined that a thigh injury condition exists, and a corresponding target injury type may be determined according to the thigh injury condition; if the second speed value exceeds the second preset threshold value, the lower leg position can be judged to exceed the normal moving range, so that the condition of the lower leg injury can be determined, and the corresponding target injury type can be determined according to the condition of the lower leg injury. And judging whether the first speed value and the second speed value exceed the normal moving range or not by acquiring corresponding thresholds, so that whether the damage condition of the thigh part and the shank part exists or not can be judged, and when the damage condition of the thigh part and the shank part exists, the corresponding target damage type can be determined, so that the detection condition can be fed back more accurately.
In some embodiments of the present invention, determining the target lesion type from the third speed value and the first, second, and second impact thresholds, determining the target lesion type from the first speed value and the first, second, and second preset thresholds, comprises:
judging whether the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value, and determining that the injury type corresponding to the third speed value and the impact angle is the knee joint injury type when the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value. Optionally, whether the knee overstretching condition and the overstretching condition exist simultaneously or not can be judged by judging whether the third speed value exceeds the first impact threshold value and whether the impact angle exceeds the second impact threshold value, if the knee overstretching condition and the overstretching condition exist simultaneously, the knee part can be judged to exceed the corresponding normal moving range, so that the movement posture error of the user can be determined, and the injury of the knee part is caused. Specifically, assume a third speed value v 3 The corresponding first impact threshold value is m 1 The second impact threshold value corresponding to the impact angle omega is m 2 . When v 3 ＞m 1 When the angular velocity of the knee part exceeds the normal moving range, the condition of over-extension of the knee is determined; when omega > m 2 When the torsion angle of the knee part is beyond the normal moving range, the situation of excessive impact can be determined; when v 3 ＞m 1 And ω > m 2 When the knee overstretching condition and the excessive impact condition exist simultaneously, the movement posture error of the user can be determined, and the knee injury is caused. Thus, when v 3 ＞m 1 And ω > m 2 In this case, the knee injury may be determined, and the target injury type corresponding to the knee injury may be determined as the knee joint injury type.
Judging whether the first speed value is larger than a first preset threshold value, and determining that the target injury type corresponding to the first speed value is the knee joint injury type when the first speed value is larger than the first preset threshold value.
Alternatively, assume a first velocity value v 1 The corresponding first preset threshold value is n 1 When v 1 ＞n 1 It can be determined that the acceleration of the thigh portion is out of the normal range of motion, and therefore, when v 1 ＞n 1 In this case, it is determined that there is a damage to the thigh, and the damage to the thigh causes wear of the knee joint, so that the corresponding target damage type is determined as the knee joint damage type.
Judging whether the second speed value is larger than a second preset threshold value, and determining that the target injury type corresponding to the second speed value is the ankle injury type when the second speed value is larger than the second preset threshold value.
Alternatively, assume a second velocity value v 2 The corresponding second preset threshold value is n 2 . When v 2 ＞n 2 At this time, it can be determined that the acceleration of the lower leg portion is out of the normal range of motion. When v 2 ＞n 2 In this case, it is determined that there is a damage to the lower leg portion, and the ankle is worn due to the damage to the lower leg portion, so that the corresponding target damage type is determined to be the ankle damage type. Whether the first speed value, the second speed value, the third speed value and the impact angle value exceed the corresponding threshold values or not is judged respectively, so that the corresponding target damage type can be determined efficiently and accurately, and a detection result is obtained.
Referring to fig. 3, in some embodiments of the present invention, generating damage hint information according to a target damage type includes:
and step S300, generating knee joint injury prompt information when the target injury type is the knee joint injury type.
The knee joint injury prompt information can be information for feeding back the knee joint injury condition detected in real time to the user, the knee joint injury prompt information can be sound prompt information and/or visual prompt information, and the knee joint injury condition can be the condition of the knee joint injury of the user detected in real time. When the damage condition is determined to exist and the target damage type is the knee joint damage type, the detection result can be fed back to the user so as to prompt the user to know and timely adjust the wrong movement posture. Optionally, assuming that the knee joint injury prompt information is generated according to the knee joint injury type and is voice prompt information, voice prompt can be performed through the voice prompt information, so that a user can adjust the movement gesture in time according to the voice prompt information; the voice prompt information and the visual prompt information can be generated simultaneously to remind, and the multi-azimuth feedback detection result is realized.
And step S310, when the target injury type is the ankle injury type, generating ankle injury prompt information.
The ankle injury prompt information can be information for feeding back the ankle injury condition detected in real time to the user, the ankle injury prompt information can be sound prompt information and/or visual prompt information, and the ankle injury detection condition can be the condition of the ankle injury of the user detected in real time. When the damage condition is determined to exist and the target damage type is the ankle damage type, the detection result can be fed back to the user so as to prompt the user to timely adjust the wrong movement posture. Optionally, assuming that the ankle injury prompt information is generated according to the ankle injury type and is visual prompt information, the user can flash and remind through the visual prompt information, so that the user can adjust the movement gesture in time according to the visual prompt information; the voice prompt information and the visual prompt information can be generated simultaneously, and the multi-azimuth feedback detection result is realized. The corresponding injury prompt information is generated according to the real-time detected target injury type, so that the user can be accurately fed back to the lower limb injury detection condition, and the user can be timely reminded of adjusting the wrong movement posture and avoiding the abrasion of the lower limb joints.
Referring to fig. 4, in some embodiments of the present invention, after generating the damage hint information according to the target damage type, the method further includes:
step S400, obtaining the recording times of the damage prompt information, and obtaining a preset warning threshold.
The recording times can be the times of recording and generating damage prompt information in a certain period of time, namely the times of occurrence of lower limb damage obtained in a certain period of time; the preset alert threshold may be a critical value corresponding to a preset number of recordings. When the condition of the damage of the lower limb is frequently detected in a certain short time, the times of the damage of the lower limb can be recorded, and then a critical value corresponding to the recorded times can be obtained, namely the recorded times and a preset warning threshold value are obtained. Whether the recorded times exceed a critical value or not can be judged according to a preset warning threshold value, so that long-term monitoring of the damage condition of the lower limb is realized. Optionally, the number of times of generating the damage prompt information is recorded in one month is d, that is, the recorded number of times is d, and the recorded number of times d and the preset warning threshold p can be obtained if the preset warning threshold corresponding to d is p.
Step S410, judging whether the recording times are larger than the preset warning threshold value, and when the recording times are larger than the preset warning threshold value, proceeding to step S420. Otherwise, step S420 is not required.
Step S420, generating warning prompt information.
The warning prompt information may be information for feeding back the lower limb injury detected in a certain period of time to the user, and the lower limb injury prompt information may be voice prompt information and/or visual prompt information. The information of the lower limb injury condition can be judged according to the recorded times and the preset warning threshold, and optionally, the recorded times d, the preset warning threshold p and the preset warning threshold p are assumed, and d > p can be judged, so that the times of occurrence of the lower limb injury in the time period can be judged to exceed the warning range, warning prompt information can be generated, the lower limb injury condition detected in the time period can be fed back to a user, the user can be reminded of timely selecting rest or treatment before serious injury is caused, and the user can be recommended to perform finer detection. The method has the advantages that whether the times of occurrence of lower limb injury in a period of time exceeds the warning value can be judged by acquiring the recorded times and the preset warning threshold value, when the lower limb injury condition occurs for a plurality of times, feedback can be carried out to a user through warning prompt information, the lower limb injury detection condition of the user in a certain period of time can be reminded in real time, long-term monitoring of the lower limb injury condition can be realized, and a better feedback effect is achieved.
In some embodiments of the present invention, the method for detecting a lower limb injury further comprises:
in the movement process of a user, firstly, acquiring a speed value of a lower limb when the lower limb contacts the ground, for example, acquiring a value of acceleration of a thigh part in a vertical direction and/or in a thigh direction, acquiring a value of acceleration of a shank part in a vertical direction and/or in a shank direction, and acquiring a value and an angle value of an angular speed corresponding to a knee joint through an attitude sensor; and secondly, determining different lower limb injury types according to different speed values, for example, acquiring a preset threshold corresponding to the speed value of the thigh part, a preset threshold corresponding to the speed value of the calf part and a preset threshold corresponding to the speed value of the knee joint, judging whether the lower limb injury exceeds a normal moving range according to the thresholds corresponding to the speed values respectively, and determining that the lower limb injury is caused when the speed value is larger than the corresponding preset threshold. Specifically, when the value of the acceleration of the thigh part is greater than the corresponding threshold value, the knee joint injury is determined to be caused, and the corresponding injury type is determined to be the knee joint injury type; when the value of the acceleration of the lower leg part is larger than the corresponding threshold value, the ankle joint injury is determined to be caused, and the corresponding injury type is determined to be the ankle joint injury type; when the value of the angular velocity and the angle value corresponding to the knee joint are both larger than the corresponding threshold values, the damage to the knee joint can be determined, and the corresponding damage type can be determined as the knee joint damage type. Finally, prompt information can be generated according to different injury types so as to timely feed back the lower limb injury condition detected in real time to the user. The number of times of real-time feedback detection conditions in a period of time can be recorded, whether the damage condition of the lower limb in the period of time exceeds an alarm range or not is judged according to a preset alarm threshold, when the damage condition exceeds the alarm range, feedback can be carried out to a user through alarm prompt information, the user is reminded of timely selecting rest or treatment before serious damage is caused, and the user can be recommended to carry out finer detection. The method comprises the steps of acquiring a lower limb acceleration value and/or an angular velocity value of a user through an attitude sensor, acquiring thresholds respectively corresponding to the acceleration value and/or the angular velocity value, judging whether the acceleration value and/or the angular velocity value exceeds a normal moving range according to the thresholds, determining different lower limb injury types caused by the acceleration value and/or the angular velocity value exceeding the normal moving range more simply, and finally feeding back detection conditions according to the lower limb injury types, so that the user can adjust wrong moving attitudes in time according to the detection conditions.
Referring to fig. 5, a device for detecting damage to a lower limb according to an embodiment of the present invention includes:
the acquisition module 500 is used for acquiring a target speed value corresponding to the lower limb when the lower limb touches the ground;
a detection model 510 for determining a target lesion type based on the target velocity value;
and the feedback module 520 is configured to generate damage prompting information according to the target damage type.
In some embodiments of the present invention, obtaining a target speed value corresponding to a lower limb touching the ground includes: the obtaining module 500 is further configured to obtain a first speed value corresponding to a thigh when the user touches the ground, and obtain a second speed value corresponding to a shank when the user touches the ground; the obtaining module 500 is further configured to calculate a third velocity value and an impact angle corresponding to the knee joint according to the first velocity value and the second velocity value.
In some embodiments of the invention, determining the target lesion type from the target speed value comprises: the acquisition module 500 is further configured to acquire a first impact threshold value and a second impact threshold value; the detection module 510 is further configured to determine the target damage type according to the third speed value and the first impact threshold value, the impact angle, and the second impact threshold value.
In some embodiments of the present invention, the method of determining a target lesion type from a target speed value further comprises: the obtaining module 500 is further configured to obtain a first preset threshold and a second preset threshold; the detection module 510 is further configured to determine the target damage type according to the first speed value and the first preset threshold, and the second speed value and the second preset threshold.
In some embodiments of the present invention, determining the target lesion type from the third speed value and the first, second, and second impact thresholds, determining the target lesion type from the first speed value and the first, second, and second preset thresholds, comprises: the detection module 510 is further configured to determine whether the third speed value is greater than the first impact threshold and whether the impact angle is greater than the second impact threshold, and determine that the injury type corresponding to the third speed value and the impact angle is a knee joint injury type when the third speed value is greater than the first impact threshold and the impact angle is greater than the second impact threshold; the detection module 510 is further configured to determine whether the first speed value is greater than the first preset threshold, and determine that the target injury type corresponding to the first speed value is a knee joint injury type when the first speed value is greater than the first preset threshold; the detection module 510 is further configured to determine whether the second speed value is greater than a second preset threshold, and determine that the target injury type corresponding to the second speed value is an ankle injury type when the second speed value is greater than the second preset threshold.
In some embodiments of the present invention, generating damage cue information according to a target damage type includes: the feedback module 520 is further configured to generate knee joint injury prompt information when the target injury type is a knee joint injury type; the feedback module 520 is further configured to generate ankle injury prompt information when the target injury type is an ankle injury type.
In some embodiments of the present invention, after generating the damage prompt information according to the target damage type, the method further includes: the acquisition module 500 is further configured to acquire the number of times of recording the damage prompt information, and acquire a preset alert threshold; the detection module 510 is further configured to determine whether the number of times of recording is greater than a preset alert threshold; the feedback module 520 is further configured to generate alert prompt information when the number of records is greater than the preset alert threshold.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
According to the embodiment of the invention, the detection control device for the lower limb injury comprises: at least one processor, and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a method of detecting a lower limb injury: obtaining a target speed value corresponding to a lower limb when the lower limb touches the ground; determining a target damage type according to the target speed value; and generating damage prompt information according to the target damage type.
In some embodiments of the present invention, obtaining a target speed value corresponding to a lower limb touching the ground includes: acquiring a first speed value corresponding to a thigh during touchdown and a second speed value corresponding to a shank during touchdown; and calculating a third speed value and an impact angle corresponding to the knee joint according to the first speed value and the second speed value.
In some embodiments of the invention, determining the target lesion type from the target speed value comprises: acquiring a first impact threshold value and a second impact threshold value; and determining the target damage type according to the third speed value, the first impact threshold value, the impact angle and the second impact threshold value.
In some embodiments of the present invention, the method of determining a target lesion type from a target speed value further comprises: acquiring a first preset threshold value and a second preset threshold value; and determining the target damage type according to the first speed value and the first preset threshold value, and the second speed value and the second preset threshold value.
In some embodiments of the present invention, determining the target lesion type from the third speed value and the first, second, and second impact thresholds, determining the target lesion type from the first speed value and the first, second, and second preset thresholds, comprises: judging whether the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value, and determining that the injury type corresponding to the third speed value and the impact angle is knee joint injury type when the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value; judging whether the first speed value is larger than a first preset threshold value, and determining that the target injury type corresponding to the first speed value is a knee joint injury type when the first speed value is larger than the first preset threshold value; judging whether the second speed value is larger than a second preset threshold value, and determining that the target injury type corresponding to the second speed value is the ankle injury type when the second speed value is larger than the second preset threshold value.
In some embodiments of the present invention, generating damage cue information according to a target damage type includes: generating knee joint injury prompt information when the target injury type is knee joint injury type; and when the target injury type is the ankle injury type, generating ankle injury prompt information.
In some embodiments of the present invention, after generating the damage hint information according to the target damage type, the method further includes: acquiring the recording times of recording damage prompt information, and acquiring a preset warning threshold; judging whether the recording times are larger than a preset warning threshold value or not; and when the recording times are greater than a preset warning threshold value, generating warning prompt information.
According to the computer-readable storage medium of the embodiment of the present invention, the computer-readable storage medium stores computer-executable instructions for causing a computer to perform a method of detecting a lower limb injury: obtaining a target speed value corresponding to a lower limb when the lower limb touches the ground; determining a target damage type according to the target speed value; and generating damage prompt information according to the target damage type.
In some embodiments of the present invention, obtaining a target speed value corresponding to a lower limb touching the ground includes: acquiring a first speed value corresponding to a thigh during touchdown and a second speed value corresponding to a shank during touchdown; and calculating a third speed value and an impact angle corresponding to the knee joint according to the first speed value and the second speed value.
In some embodiments of the invention, determining the target lesion type from the target speed value comprises: acquiring a first impact threshold value and a second impact threshold value; and determining the target damage type according to the third speed value, the first impact threshold value, the impact angle and the second impact threshold value.
In some embodiments of the present invention, the method of determining a target lesion type from a target speed value further comprises: acquiring a first preset threshold value and a second preset threshold value; and determining the target damage type according to the first speed value and the first preset threshold value, and the second speed value and the second preset threshold value.
In some embodiments of the present invention, determining the target lesion type from the third speed value and the first, second, and second impact thresholds, determining the target lesion type from the first speed value and the first, second, and second preset thresholds, comprises: judging whether the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value, and determining that the injury type corresponding to the third speed value and the impact angle is knee joint injury type when the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value; judging whether the first speed value is larger than a first preset threshold value, and determining that the target injury type corresponding to the first speed value is a knee joint injury type when the first speed value is larger than the first preset threshold value; judging whether the second speed value is larger than a second preset threshold value, and determining that the target injury type corresponding to the second speed value is the ankle injury type when the second speed value is larger than the second preset threshold value.
In some embodiments of the present invention, generating damage cue information according to a target damage type includes: generating knee joint injury prompt information when the target injury type is knee joint injury type; and when the target injury type is the ankle injury type, generating ankle injury prompt information.
In some embodiments of the present invention, after generating the damage hint information according to the target damage type, the method further includes: acquiring the recording times of recording damage prompt information, and acquiring a preset warning threshold; judging whether the recording times are larger than a preset warning threshold value or not; and when the recording times are greater than a preset warning threshold value, generating warning prompt information.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (7)
1. The method for detecting the damage of the lower limb is characterized by comprising the following steps:
obtaining a target speed value corresponding to a lower limb when the lower limb touches the ground;
determining a target damage type according to the target speed value;
generating damage prompt information according to the target damage type;
the obtaining the target speed value corresponding to the lower limb when touching the ground comprises the following steps: acquiring a first speed value corresponding to a thigh during touchdown and a second speed value corresponding to a shank during touchdown; according to the first speed value and the second speed value, calculating to obtain a third speed value and an impact angle corresponding to the knee joint; the first speed value is an acceleration value along the thigh direction on the thigh part acquired in real time in the process of touchdown, the second speed value is an acceleration value along the calf direction on the calf part acquired in real time in the process of touchdown, the third speed value is an angular speed value corresponding to the knee joint in the process of touchdown, and the impact angle is a torsion angle formed by the knee joint under the action of external force;
The determining the target damage type according to the target speed value comprises the following steps: acquiring a first impact threshold value and a second impact threshold value; determining a target damage type according to the third speed value and the first impact threshold value, the impact angle and the second impact threshold value; the first impact threshold value is a critical value corresponding to the third speed value, and the second impact threshold value is a critical value corresponding to the impact angle;
the determining the target damage type according to the target speed value further includes: acquiring a first preset threshold value and a second preset threshold value; determining a target damage type according to the first speed value and the first preset threshold value, and the second speed value and the second preset threshold value; the first preset threshold is a preset critical value corresponding to the first speed value, and the second preset threshold is a preset critical value corresponding to the second speed value.
2. The method of claim 1, wherein the determining the target lesion type based on the third speed value and the first impact threshold, the angle of impact, and the second impact threshold, the determining the target lesion type based on the first speed value and the first preset threshold, the second speed value, and the second preset threshold, comprises:
Judging whether the third speed value is larger than the first impact threshold value or not and whether the impact angle is larger than the second impact threshold value or not, and determining that the injury type corresponding to the third speed value and the impact angle is a knee joint injury type when the third speed value is larger than the first impact threshold value and the impact angle is larger than the second impact threshold value;
judging whether the first speed value is larger than the first preset threshold value, and determining that the target injury type corresponding to the first speed value is a knee joint injury type when the first speed value is larger than the first preset threshold value;
judging whether the second speed value is larger than the second preset threshold value, and determining that the target injury type corresponding to the second speed value is an ankle injury type when the second speed value is larger than the second preset threshold value.
3. The method of claim 2, wherein generating the damage cue information according to the target damage type comprises:
generating knee joint injury prompt information when the target injury type is a knee joint injury type;
and when the target injury type is the ankle injury type, generating ankle injury prompt information.
4. The method of claim 1, further comprising, after generating the damage cue information according to the target damage type:
acquiring the recording times of the damage prompt information, and acquiring a preset warning threshold;
judging whether the recording times are larger than the preset warning threshold value or not;
and when the recording times are larger than the preset warning threshold value, warning prompt information is generated.
5. Detection device of low limbs damage, characterized in that, the device includes:
the acquisition module is used for acquiring a target speed value corresponding to the lower limb when the lower limb touches the ground;
the detection model is used for determining a target damage type according to the target speed value;
the feedback module is used for generating damage prompt information according to the target damage type;
the obtaining the target speed value corresponding to the lower limb when touching the ground comprises the following steps: acquiring a first speed value corresponding to a thigh during touchdown and a second speed value corresponding to a shank during touchdown; according to the first speed value and the second speed value, calculating to obtain a third speed value and an impact angle corresponding to the knee joint; the first speed value is an acceleration value along the thigh direction on the thigh part acquired in real time in the process of touchdown, the second speed value is an acceleration value along the calf direction on the calf part acquired in real time in the process of touchdown, the third speed value is an angular speed value corresponding to the knee joint in the process of touchdown, and the impact angle is a torsion angle formed by the knee joint under the action of external force;
The determining the target damage type according to the target speed value comprises the following steps: acquiring a first impact threshold value and a second impact threshold value; determining a target damage type according to the third speed value and the first impact threshold value, the impact angle and the second impact threshold value; the first impact threshold value is a critical value corresponding to the third speed value, and the second impact threshold value is a critical value corresponding to the impact angle;
the determining the target damage type according to the target speed value further includes: acquiring a first preset threshold value and a second preset threshold value; determining a target damage type according to the first speed value and the first preset threshold value, and the second speed value and the second preset threshold value; the first preset threshold is a preset critical value corresponding to the first speed value, and the second preset threshold is a preset critical value corresponding to the second speed value.
6. Detection control equipment of low limbs damage, its characterized in that includes:
at least one processor, and,
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of detecting a lower limb injury as claimed in any one of claims 1 to 4.
7. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method for detecting a lower limb injury according to any one of claims 1 to 4.
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| US20130244211A1 (en) * | 2012-03-15 | 2013-09-19 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for measuring, analyzing, and providing feedback for movement in multidimensional space |
| DE102012009507A1 (en) * | 2012-05-14 | 2013-11-14 | Otto Bock Healthcare Gmbh | Device and method for determining malpositions in the construction of prostheses |
| US20180028109A1 (en) * | 2016-07-27 | 2018-02-01 | Andrew TESNOW | System and method for a wearable knee injury prevention |
| CN106267785B (en) * | 2016-09-09 | 2019-06-07 | 珠海安润普科技有限公司 | A kind of intelligence protecting band |
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