CN105551194A - Fall detection method and device - Google Patents
Fall detection method and device Download PDFInfo
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- CN105551194A CN105551194A CN201610137313.0A CN201610137313A CN105551194A CN 105551194 A CN105551194 A CN 105551194A CN 201610137313 A CN201610137313 A CN 201610137313A CN 105551194 A CN105551194 A CN 105551194A
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- 238000001514 detection method Methods 0.000 title claims abstract description 59
- 230000037396 body weight Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000002463 transducing effect Effects 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000001631 hypertensive effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0407—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
- G08B21/043—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0438—Sensor means for detecting
- G08B21/0446—Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Gerontology & Geriatric Medicine (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Psychiatry (AREA)
- Psychology (AREA)
- Social Psychology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a falling detection method and a falling detection device, wherein a first pressure sensor arranged on the inner side of a sole, a second pressure sensor arranged on the inner side of a middle upper of a shoe back and a third pressure sensor arranged on the inner side of the upper of the shoe back are used for respectively acquiring a first pressure signal, a second pressure signal and a third pressure signal in real time; if the duration of the acquired first pressure signal, the acquired second pressure signal and the acquired third pressure signal meeting the following conditions reaches a preset time threshold: if the first pressure signal is smaller than a first preset threshold, the second pressure signal is larger than a second preset threshold or the third pressure signal is larger than a third preset threshold, the person is judged to fall; and sending out a falling alarm signal when the user determines that the user falls. The invention can accurately detect falling, and has simple realization method and low cost.
Description
Technical field
The present invention relates to intelligent shoe field, particularly relate to a kind of fall detection method and falling detection device.
Background technology
According to related data statistics, falling is the modal accidents of current children, accounts for 44% of all children's accidents; Fall and also become one of the unexpected disability of over-65s old man and dead major reason.When accident of falling occurs, if the person of falling can not get timely treatment, it can be caused to incur loss through delay because of the condition of the injury and to cause great threat to healthy situation, and for suffer from cardiovascular and cerebrovascular disease and hypertensive patient even can occur lethal may.Therefore, fall detection carried out to the potential people at highest risk that falls most important.
In order to detect the event of falling, proposing and having carried out for the event of falling the measure that detects.Such as: 3-axis acceleration sensor, angular-rate sensor and pressure transducer are located at sole, measure three groups of different sensing datas by three kinds of sensors simultaneously judge whether human body falls.But, to detect user's state of falling, that it is embodied as is high because have employed the 3-axis acceleration sensor of high cost and angular-rate sensor for the method, simultaneously, the sensing data kind got by 3-axis acceleration sensor, angular-rate sensor and pressure transducer is many, causes the complex disposal process to data in this fall detection method.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of fall detection method and device, accurately can detect and fall, and it is low to realize cost, implementation method is simple.
For solving the problems of the technologies described above, fall detection method provided by the invention, comprises the following steps:
S1: by the second pressure transducer of side inner side in after being located at the first pressure transducer inside sole, being located at footwear and the 3rd pressure transducer Real-time Collection first pressure signal, the second pressure signal and the 3rd pressure signal respectively be located at inside counter;
S2: if the duration that described first pressure signal collected, the second pressure signal and the 3rd pressure signal meet the following conditions reach default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling;
S3: send alarm signal of falling when being judged as falling.
As the improvement of such scheme, also comprise step:
When described first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduce the frequency acquisition of described first pressure transducer, the second pressure transducer and the 3rd pressure transducer.
As the improvement of such scheme, described step S2 specifically comprises:
Described first pressure signal, the second pressure signal and the 3rd pressure signal is read by the reading frequency preset; Described reading frequency is less than or equal to the frequency acquisition of the first pressure transducer, the second pressure transducer and the 3rd pressure transducer;
If the duration that described first pressure signal read, the second pressure signal and the 3rd pressure signal meet the following conditions reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling.
As the improvement of such scheme, also comprise step:
When described first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduce described reading frequency.
As the improvement of such scheme, before step S2, also comprise:
When described first pressure signal collected reaches default human body weight scope first, current described first pressure signal, the second pressure signal and the 3rd pressure signal collected is recorded as the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value respectively.
For solving the problems of the technologies described above, the present invention also provides a kind of falling detection device, comprising:
First pressure transducer, is located at inside sole, for gathering the first pressure signal;
Second pressure transducer, is located at side inner side in after footwear, for gathering the second pressure signal;
3rd pressure transducer, is located at inside counter, for gathering the 3rd pressure signal;
Central processing module, if the duration met the following conditions for described first pressure signal, the second pressure signal and the 3rd pressure signal that collect reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling;
Alarm module, for sending when central processing module judges is for falling alarm signal of falling.
As the improvement of such scheme, described falling detection device also comprises:
Frequency acquisition adjustment module, for when described first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduces the frequency acquisition of described first pressure transducer, the second pressure transducer and the 3rd pressure transducer.
As the improvement of such scheme, described central processing module comprises:
Reading unit, reads described first pressure signal, the second pressure signal and the 3rd pressure signal for the reading frequency by presetting; Described reading frequency is less than or equal to the frequency acquisition of the first pressure transducer, the second pressure transducer and the 3rd pressure transducer;
Judging unit, if the duration met the following conditions for described first pressure signal, the second pressure signal and the 3rd pressure signal that read reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling.
As the improvement of such scheme, described central processing module also comprises:
Reading frequency regulon, the first pressure signal, the second pressure signal and the 3rd pressure signal for reading at described reading unit are 0, reduces described reading frequency.
As the improvement of such scheme, it is characterized in that, described falling detection device also comprises:
Presetting module, during for reaching default human body weight scope first when described first pressure signal collected, current described first pressure signal, the second pressure signal and the 3rd pressure signal collected is recorded as the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value respectively.
As the improvement of such scheme, described falling detection device also comprises:
Power module, for powering to described first pressure transducer, the second pressure transducer, the 3rd pressure transducer and central processing module.
Compared with prior art, a kind of fall detection method provided by the invention and device carry out the multiple pressure signal of Real-time Collection by the pressure transducer being located at diverse location inside footwear chamber, judgement for the state of falling provides sufficient data, can improve the accuracy of detection; According to human body be in fall state time the foot of human body and the different laminating situations on ground, reach the condition judgment of default time threshold for falling meeting the first pressure signal, the second pressure signal and the 3rd pressure signal that collect meet that the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value duration, just alarm signal is sent when being judged as falling, this detection method is accurate, simple, can effectively avoid erroneous judgement of falling; Only relate in this process simultaneously and processing single pressure sensor signal, signal processing is simple; In addition, because the sensor type that this device uses is single, cost is lower, the cost of device can also be reduced.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 the present invention relates to a kind of fall detection method and the structural representation of application of installation on shoes.
Fig. 2 is the schematic flow sheet of the fall detection method of the embodiment of the present invention 1.
Fig. 3 is the refinement schematic flow sheet of the step S2 of the embodiment of the present invention 2.
Fig. 4 is the refinement schematic flow sheet of record first predetermined threshold value of the embodiment of the present invention 3, the second predetermined threshold value and the 3rd predetermined threshold value step.
Fig. 5 is the structural representation of the falling detection device of the embodiment of the present invention 4.
Fig. 6 is the structural representation comprising the falling detection device of frequency acquisition adjustment module of inventive embodiments 5.
Fig. 7 is the structural representation comprising the falling detection device of central processing module refinement functional module of the embodiment of the present invention 6.
Fig. 8 is the structural representation that the embodiment of the present invention 6 comprises the falling detection device of reading frequency regulon.
Fig. 9 is the structural representation comprising the falling detection device of presetting module of the embodiment of the present invention 7.
Figure 10 is the structural representation that the embodiment of the present invention 4 comprises the falling detection device of power supply.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, be the present invention relates to a kind of fall detection method and the structural representation of application of installation on shoes.As shown in Figure 1, this fall detection method and device comprise be located at inside sole 2 the first pressure transducer 10, be located at footwear after in the second pressure transducer 11 inside side 3 and the 3rd pressure transducer 12 be located at inside counter 4.Wherein, 2 be the user face that shoes contact with the sole of user foot 1 after putting on shoes inside sole; In after footwear inside side 3 for user's shoes after putting on shoes contact with the side of user foot 1 inwall; Inwall is contacted for user's shoes after putting on shoes with the heel position of user foot 1 inside counter 4.
See Fig. 1 ~ 2, fall detection method of the present invention comprises the following steps:
S1: by be located at inside sole 2 the first pressure transducer 10, be located at footwear after in the second pressure transducer 11 inside side 3 and the 3rd pressure transducer 12 respectively Real-time Collection first pressure signal, the second pressure signal and the 3rd pressure signal be located at inside counter 4;
S2: if the duration that the first pressure signal collected, the second pressure signal and the 3rd pressure signal meet the following conditions reach default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling;
S3: send alarm signal of falling when being judged as falling.
Multiple pressure transducer is located at inside footwear chamber by this fall detection method, the pressure signal produced footwear chamber with the multiple positions gathering user foot, and judges whether user is in the state of falling with the use of multiple pressure signal.Such as: when user face sky lie on the ground time, if the outside of user's counter 4 and earth surface, then the 3rd pressure transducer 12 can detect larger pressure signal, and outside sole and footwear after in side 3 not with earth surface, the pressure signal that first pressure transducer 10 and the second pressure transducer 11 detect is very little, is even 0; If fit with ground outside the sole of user, can 3 be helped to produce larger extruding in after footwear, then the second pressure transducer 11 detects larger pressure signal, and pressure is less than user for pressure under normal attitude outside sole, the pressure signal that the first pressure transducer 10 detects is still very little.When user lies prone on the ground or lies on one's side on the ground with facing, in outside user's sole and after footwear, side 3 pressures are less, and because fitting with ground outside side 3 in after footwear, the second pressure transducer 12 detects larger pressure signal.Therefore, in the present embodiment, be less than the first predetermined threshold value by the first pressure signal, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, accurately detect that user is above-mentioned state.
For improving the accuracy judged, avoiding because user oneself stands up after falling and causing erroneous judgement, when detecting that user reaches default time threshold the duration in above-mentioned state, just can be judged as falling, wherein, the time threshold preset is preferably 1 minute, also can be other time.When being judged as falling, send alarm signal, the mode specifically by sending alarming short message realizes.In this fall detection method, type sensing signal is single, simple to the disposal route of transducing signal, effectively can reduce the complexity of the method.
In enforcement 1, for reducing energy consumption, also comprise step: when the first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduce the frequency acquisition of the first pressure transducer 10, second pressure transducer 11 and the 3rd pressure transducer 12.
Understandable, for arriving energy-conservation object, can also, when the first pressure signal, the second pressure signal and the 3rd pressure signal are 0, only use the first pressure transducer 10 to gather the first pressure signal.When the first pressure signal is not 0, just control the first pressure transducer 10, second pressure transducer 11 and the 3rd pressure transducer 12 all carry out the collection of transducing signal.
See Fig. 1 and 3, wherein, Fig. 3 is the refinement schematic flow sheet of the step S2 of the embodiment of the present invention 2, and based on embodiments of the invention 1, this step S2 specifically comprises:
S21: read the first pressure signal, the second pressure signal and the 3rd pressure signal by the reading frequency preset; Reading frequency is less than or equal to the frequency acquisition of the first pressure transducer 10, second pressure transducer 11 and the 3rd pressure transducer 12;
S22: if the duration that the first pressure signal read, the second pressure signal and the 3rd pressure signal meet the following conditions reach default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling.
In the present embodiment 2, for reducing energy consumption, this fall detection method, also comprises step: when the first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduces reading frequency.
Understandable, for arriving energy-conservation object, when the first pressure signal, the second pressure signal and the 3rd pressure signal are 0, can also only read the first pressure signal that the first pressure transducer gathers; When the first pressure signal is not 0, read the transducing signal of the first pressure transducer 10, second pressure transducer 11 and the collection of the 3rd pressure transducer 12.
See Fig. 4, it is the refinement schematic flow sheet of record first predetermined threshold value of the embodiment of the present invention 3, the second predetermined threshold value and the 3rd predetermined threshold value step.This fall detection method, before step S2, also comprises:
S11: when the first pressure signal collected reaches default human body weight scope first, is recorded as the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value respectively by current the first pressure signal, the second pressure signal and the 3rd pressure signal collected.
In embodiment 3, when the first pressure signal collected reaches default human body weight scope first, user is in erectility, now record the first pressure signal, the second pressure signal and the 3rd pressure signal that collect and be respectively the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value, can be used as user under non-state of falling, its foot is to the normal pressure value of each pressure transducer.
See Fig. 1 and 5, it is the structural representation of the falling detection device of the embodiment of the present invention 4.This falling detection device, comprising:
First pressure transducer 10, to be located at inside sole 2, for gathering the first pressure signal;
Second pressure transducer 11, is located in after footwear inside side 3, for gathering the second pressure signal;
3rd pressure transducer 12, is located at inside counter 4, for gathering the 3rd pressure signal;
Central processing module 13, if the duration met the following conditions for the first pressure signal, the second pressure signal and the 3rd pressure signal that collect reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling;
Alarm module 14, for sending when central processing module 13 is judged as falling alarm signal of falling.
Multiple pressure transducer is located at inside footwear chamber by this falling detection device, the pressure signal produced footwear chamber with the multiple positions gathering user foot, and judges whether user is in the state of falling with the use of multiple pressure signal.Such as: when user face sky lie on the ground time, if the outside of user's counter 4 and earth surface, then the 3rd pressure transducer 12 can detect larger pressure signal, and outside sole and footwear after in side 3 not with earth surface, the pressure signal that first pressure transducer 10 and the second pressure transducer 11 detect is very little, is even 0; If fit with ground outside the sole of user, can 3 be helped to produce larger extruding in after footwear, then the second pressure transducer 11 detects larger pressure signal, and the pressure be subject to outside sole is less than user for pressure suffered under normal attitude, the pressure signal that the first pressure transducer 10 detects is still very little.When user lies prone on the ground or lies on one's side on the ground with facing, in outside the sole of user and after footwear, side 3 pressures are less, and because fitting with ground outside side 3 in after footwear, the second pressure transducer 11 detects larger pressure signal.Therefore, in the present embodiment, be less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value by the first pressure signal, accurately detecting user is above-mentioned state.
For improving the accuracy judged, avoiding because user oneself stands up after falling and causing erroneous judgement, when detecting that user reaches default time threshold the duration in above-mentioned state, then be judged as falling, wherein, the time threshold preset is preferably 1 minute, also can be other time.When being judged as falling, alarm module 14 sends alarm signal, and particularly, this alarm modules 14 can be SMS platform.In this falling detection device, adopt single pressure transducer just can realize the accurate judgement of state of falling to user, it is embodied as low.
See Fig. 6, it is the structural representation comprising the falling detection device of frequency acquisition adjustment module of inventive embodiments 5.For reducing the energy consumption of this device, promote its flying power, this falling detection device also comprises: frequency acquisition adjustment module 20, for when the first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduce the frequency acquisition of described first pressure transducer 10, second pressure transducer 11 and the 3rd pressure transducer 12.
Understandable, for arriving energy-conservation object, can also, when the first pressure signal, the second pressure signal and the 3rd pressure signal are 0, only use the first pressure transducer 10 to gather the first pressure signal.When the first pressure signal is not 0, just control the first pressure transducer 10, second pressure transducer 11 and the 3rd pressure transducer 12 all carry out the collection of transducing signal.
See Fig. 7, it is the structural representation comprising the falling detection device of central processing module refinement functional module of the embodiment of the present invention 6.The central processing module 13 of this device specifically comprises:
Reading unit 131, reads the first pressure signal, the second pressure signal and the 3rd pressure signal for the reading frequency by presetting; Reading frequency is less than or equal to the frequency acquisition of the first pressure transducer 10, second pressure transducer 11 and the 3rd pressure transducer 12;
Judging unit 132, if the duration met the following conditions for the first pressure signal, the second pressure signal and the 3rd pressure signal that read reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling.
See Fig. 8, it is the structural representation that the embodiment of the present invention 6 comprises the falling detection device of reading frequency regulon.Based on embodiment 6, for reducing the energy consumption of this device, promote its flying power, the central processing module 13 of this device also comprises: reading frequency regulon 133, the first pressure signal, the second pressure signal and the 3rd pressure signal for reading at reading unit are 0, reduce reading frequency.
Understandable, for arriving energy-conservation object, when the first pressure signal, the second pressure signal and the 3rd pressure signal are 0, can also only read the first pressure signal that the first pressure transducer gathers; When the first pressure signal is not 0, read the transducing signal of the first pressure transducer 10, second pressure transducer 11 and the collection of the 3rd pressure transducer 12.
See Fig. 9, it is the structural representation comprising the falling detection device of presetting module of the embodiment of the present invention 7.This falling detection device also comprises: presetting module 30, during for reaching default human body weight scope first when the first pressure signal collected, current the first pressure signal, the second pressure signal and the 3rd pressure signal collected is recorded as the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value respectively.
In embodiment 7, when the first pressure signal collected reaches default human body weight scope first, user is in erectility, now record the first pressure signal, the second pressure signal and the 3rd pressure signal that collect and be respectively the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value, can be used as user under non-state of falling, its foot is to the normal pressure value of each pressure transducer.
See Figure 10, it is the structural representation that the embodiment of the present invention 4 comprises the falling detection device of power supply.This falling detection device also comprises: power module 40, for powering to the first pressure transducer 10, second pressure transducer 11, the 3rd pressure transducer 12 and central processing module 13.
In sum, a kind of fall detection method provided by the invention and device carry out the multiple pressure signal of Real-time Collection by the pressure transducer being located at diverse location inside footwear chamber, and the judgement for the state of falling provides sufficient data, can improve the accuracy of detection; According to human body be in fall state time the foot of human body and the different laminating situations on ground, reach the condition judgment of default time threshold for falling meeting the first pressure signal, the second pressure signal and the 3rd pressure signal that collect meet that the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value duration, just alarm signal is sent when being judged as falling, this detection method is accurate, simple, can effectively avoid erroneous judgement of falling; Only relate in this process simultaneously and processing single pressure sensor signal, signal processing is simple; In addition, because the sensor type that this device uses is single, cost is lower, the cost of device can also be reduced.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a fall detection method, is characterized in that, comprises the following steps:
S1: by the second pressure transducer of side inner side in after being located at the first pressure transducer inside sole, being located at footwear and the 3rd pressure transducer Real-time Collection first pressure signal, the second pressure signal and the 3rd pressure signal respectively be located at inside counter;
S2: if the duration that described first pressure signal collected, the second pressure signal and the 3rd pressure signal meet the following conditions reach default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling;
S3: send alarm signal of falling when being judged as falling.
2. fall detection method according to claim 1, is characterized in that, also comprises step:
When described first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduce the frequency acquisition of described first pressure transducer, the second pressure transducer and the 3rd pressure transducer.
3. fall detection method according to claim 1, is characterized in that, described step S2 specifically comprises:
Described first pressure signal, the second pressure signal and the 3rd pressure signal is read by the reading frequency preset; Described reading frequency is less than or equal to the frequency acquisition of the first pressure transducer, the second pressure transducer and the 3rd pressure transducer;
If the duration that described first pressure signal read, the second pressure signal and the 3rd pressure signal meet the following conditions reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling.
4. fall detection method according to claim 3, is characterized in that, also comprises step:
When described first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduce described reading frequency.
5. fall detection method according to claim 1, is characterized in that, before step S2, also comprises:
When described first pressure signal collected reaches default human body weight scope first, current described first pressure signal, the second pressure signal and the 3rd pressure signal collected is recorded as the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value respectively.
6. a falling detection device, is characterized in that, comprising:
First pressure transducer, is located at inside sole, for gathering the first pressure signal;
Second pressure transducer, is located at side inner side in after footwear, for gathering the second pressure signal;
3rd pressure transducer, is located at inside counter, for gathering the 3rd pressure signal;
Central processing module, if the duration met the following conditions for described first pressure signal, the second pressure signal and the 3rd pressure signal that collect reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling;
Alarm module, for sending when central processing module judges is for falling alarm signal of falling.
7. falling detection device according to claim 6, is characterized in that, described falling detection device also comprises:
Frequency acquisition adjustment module, for when described first pressure signal, the second pressure signal and the 3rd pressure signal are 0, reduces the frequency acquisition of described first pressure transducer, the second pressure transducer and the 3rd pressure transducer.
8. falling detection device according to claim 6, is characterized in that, described central processing module comprises:
Reading unit, reads described first pressure signal, the second pressure signal and the 3rd pressure signal for the reading frequency by presetting; Described reading frequency is less than or equal to the frequency acquisition of the first pressure transducer, the second pressure transducer and the 3rd pressure transducer;
Judging unit, if the duration met the following conditions for described first pressure signal, the second pressure signal and the 3rd pressure signal that read reaches default time threshold: the first pressure signal is less than the first predetermined threshold value, the second pressure signal is greater than the second predetermined threshold value or the 3rd pressure signal is greater than the 3rd predetermined threshold value, be then judged as falling.
9. falling detection device according to claim 8, is characterized in that, described central processing module also comprises:
Reading frequency regulon, the first pressure signal, the second pressure signal and the 3rd pressure signal for reading at described reading unit are 0, reduces described reading frequency.
10. falling detection device according to claim 6, is characterized in that, described falling detection device also comprises:
Presetting module, during for reaching default human body weight scope first when described first pressure signal collected, current described first pressure signal, the second pressure signal and the 3rd pressure signal collected is recorded as the first predetermined threshold value, the second predetermined threshold value and the 3rd predetermined threshold value respectively.
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| CN201610137313.0A CN105551194B (en) | 2016-03-10 | 2016-03-10 | Fall detection method and device |
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| CN201610137313.0A CN105551194B (en) | 2016-03-10 | 2016-03-10 | Fall detection method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707954A (en) * | 2017-01-21 | 2017-05-24 | 深圳市厚德世家智慧养老科技有限公司 | Intelligent bathroom nursing system and control method thereof |
| CN106846731A (en) * | 2017-03-23 | 2017-06-13 | 刘宇 | Blind person's CAS |
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