CN104680715A - Method for realizing old people falling detection based on three-axis acceleration sensor - Google Patents
Method for realizing old people falling detection based on three-axis acceleration sensor Download PDFInfo
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- CN104680715A CN104680715A CN201310609054.3A CN201310609054A CN104680715A CN 104680715 A CN104680715 A CN 104680715A CN 201310609054 A CN201310609054 A CN 201310609054A CN 104680715 A CN104680715 A CN 104680715A
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- Prior art keywords
- falling
- acceleration sensor
- axis acceleration
- elderly
- old people
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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
Abstract
Accidental falling is one of the main reasons for the disability of the elderly. This is a medical problem, and the possibility of severe long-term consequences produced in the later stage is increased if the elderly do not get timely help in the early stage after falling. Moreover, the energy of the elderly is limited, and they generally do not have self-care ability of preventing and treating falling. A falling detector based on a three-axis acceleration sensor, an embedded single chip microcomputer and GSM wireless communication is designed in the invention. The 3D acceleration value of a human body is acquired by the three-axis acceleration sensor and analyzed by the single chip microcomputer, and information of falling is released by messaging if abnormal falling is detected.
Description
Technical field
The present invention relates to a kind of implementation method detected based on 3-axis acceleration sensor Falls in Old People, belong to information communication control field.
Background technology
Move towards today of aging gradually in society, the ratio shared by the elderly also increases gradually, and the action safety of the elderly has become the major issue of society.The elderly can face dual danger after falling.It is evident that falls itself may produce injury to human body; In addition, if can not be succoured timely after falling, result may be made more to worsen.Have data to show, much serious consequence is not directly cause owing to falling, but due to after falling, is processed timely and give first aid to.When occurring falling situation, if salvor can be notified in time, the harm caused owing to falling will be alleviated widely.Therefore, a set of perfect fall detection is invented and communication system is considerable.The object of the invention is the real-time monitoring wishing to utilize electronic information technology to realize to the elderly's body posture and motion, when there is abnormal falling, the information of falling of the elderly being issued in time.
Summary of the invention
The present invention devises a kind of fall detection device, and this fall detection device is by 3-axis acceleration sensor, embedded scm, gsm wireless communication 3 large module compositions.Utilize 3-axis acceleration sensor to gather the three-dimensional acceleration value of human body, and analyzed by single-chip microcomputer, when detected abnormal fall occur time, the mode of the information of falling by note is issued.In the present invention, propose a portable hardware unit with GSM function, the object of design is real time automatic detection accidentally tumble event and reminds first aid or paramedic when detecting and falling.
Accompanying drawing explanation
Fig. 1 system chart
Fig. 2 system hardware conceptual scheme
The circuit theory diagrams of Fig. 3 gsm module TC35i
Fig. 4 program design process flow diagram
Embodiment
The fall detector of the present invention's design is made up of acceleration transducer, CPU module, power supply and communication module.Wherein 3-axis acceleration sensor is measured its acceleration CPU module and is responsible for processing the acceleration transducer data received when the acceleration change of the measured, and the acceleration change of analysis to measure object controlling is reported to the police and the issue of warning message; Power module is responsible for whole system provides electric power to supply; Communication module is responsible for warning message to issue.According to the specific purposes that the needs analyzing fall detection device realize, invention design proposal adopts framework as shown in Figure 1.This framework based on 51 series monolithics--AT89S52, after the acceleration change information of acquisition obtaining acceleration transducer, by realizing the function such as fall detection and warning after analytical calculation.
After the specific requirement analyzing fall detection device, the hardware plan of design as shown in Figure 2.This framework is made up of three large modules: acceleration acquisition module, CPU module and gsm communication module.Acceleration acquisition module, in fact based on ADXL335 3-axis acceleration sensor, after the acceleration of this sensor when gathering human body and falling, is analyzed and is converted analog voltage signal to and export.Whether analog signal output, to CPU module, converts digital signal to through ADC0832, by calculating and the analysis of the program in AT89S52 single board computer, detect wearer and fall.If detected generation of falling, will warning be produced, and send alarming short message in the mobile phone of contact person.
Specific design
● acceleration acquisition module
ADXL335 is a high-precision analog 3-axis acceleration sensor with signal conditioning circuit that ADI releases, it can be used in the static weight acceleration measured in tilt detection application, and the dynamic acceleration etc. that motion, impact or vibration cause.
User uses C
x, C
yand C
zelectric capacity X on pin
oUT, Y
oUTand Z
oUTselect the bandwidth of this accelerometer.Can according to the suitable bandwidth of application choice, the bandwidth range of X-axis and Y-axis is 0.5Hz to 1600Hz, and the bandwidth range of Z axis is 0.5Hz to 550Hz.
● gsm module
Gsm module adopts Siemens TC35i.Circuit diagram as shown in Figure 3.
● software systems process flow diagram
Program design process flow diagram as shown in Figure 4.
Claims (3)
1. one kind based on 3-axis acceleration sensor Falls in Old People detection system by 3-axis acceleration sensor, embedded scm, gsm wireless communicate 3 large module compositions.
2. according to claim 1 based on 3-axis acceleration sensor Falls in Old People detection system, it is characterized in that the real-time monitoring that can realize the elderly's body posture and motion.
3. according to claim 1 based on 3-axis acceleration sensor Falls in Old People detection system, when there is abnormal falling, the information of falling of the elderly can be issued by gsm module by system in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609054.3A CN104680715A (en) | 2013-11-28 | 2013-11-28 | Method for realizing old people falling detection based on three-axis acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609054.3A CN104680715A (en) | 2013-11-28 | 2013-11-28 | Method for realizing old people falling detection based on three-axis acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104680715A true CN104680715A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310609054.3A Pending CN104680715A (en) | 2013-11-28 | 2013-11-28 | Method for realizing old people falling detection based on three-axis acceleration sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912433A (en) * | 2020-07-14 | 2020-11-10 | 威步智能科技(苏州)有限公司 | High-precision falling real-time judgment system |
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| CN201853320U (en) * | 2010-11-23 | 2011-06-01 | 南通大学 | Monitoring and alarm system for the old |
| CN202563645U (en) * | 2012-04-27 | 2012-11-28 | 西安中星测控有限公司 | Human fall initiative alarm device having voice prompt and voice communication functions |
| CN202632475U (en) * | 2012-06-08 | 2012-12-26 | 西安中星测控有限公司 | Human-body-falling-down detection alarming device |
| CN102920117A (en) * | 2012-10-26 | 2013-02-13 | 中北大学 | Intelligent walking stick with automatic alarming function in case of falling |
| CN102968882A (en) * | 2012-11-21 | 2013-03-13 | 上海大学 | Automatic falling detection alarm waistband |
| US20140197945A1 (en) * | 2011-09-29 | 2014-07-17 | Rongxiang Gu | Human tumble detecting and alarming device |
-
2013
- 2013-11-28 CN CN201310609054.3A patent/CN104680715A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201853320U (en) * | 2010-11-23 | 2011-06-01 | 南通大学 | Monitoring and alarm system for the old |
| US20140197945A1 (en) * | 2011-09-29 | 2014-07-17 | Rongxiang Gu | Human tumble detecting and alarming device |
| CN202563645U (en) * | 2012-04-27 | 2012-11-28 | 西安中星测控有限公司 | Human fall initiative alarm device having voice prompt and voice communication functions |
| CN202632475U (en) * | 2012-06-08 | 2012-12-26 | 西安中星测控有限公司 | Human-body-falling-down detection alarming device |
| CN102920117A (en) * | 2012-10-26 | 2013-02-13 | 中北大学 | Intelligent walking stick with automatic alarming function in case of falling |
| CN102968882A (en) * | 2012-11-21 | 2013-03-13 | 上海大学 | Automatic falling detection alarm waistband |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912433A (en) * | 2020-07-14 | 2020-11-10 | 威步智能科技(苏州)有限公司 | High-precision falling real-time judgment system |
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Application publication date: 20150603 |
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