CN106384481A - Remote Internet-based first-aid alarm device with fall posture judgment function - Google Patents

Abstract

A remote interconnected emergency alarm device with fall posture judgment, including: a fall recognition module, based on an acceleration sensor installed on the human body, to realize human body activity perception by acquiring angle, acceleration, and displacement changes; a body temperature detection module, installed in the armpit of the human body The pulse detection module is installed on the human body to collect the human pulse in real time; the processor module receives the detection data from the fall detection module, body temperature detection module and pulse detection module, and the power supply module realizes power supply; the information display module , information display; voice alarm module, voice alarm; the invention uses flexible solar panels to supplement electric energy, which embodies the concept of energy saving and environmental protection; not only can it accurately identify whether the user has fallen by judging the posture of the human body, but more importantly, it can judge whether the user has fallen type, and monitor the user's body temperature and pulse information in real time; it can automatically make calls to the user's relatives and display GPS location information on the mobile phone.

Description

A remote interconnected first aid alarm device with fall posture judgment

technical field

The invention belongs to the technical field of intelligent medical treatment and wearable equipment, and relates to travel monitoring, in particular to a remote interconnected first aid alarm device with fall posture judgment.

Background technique

As the number of elderly people continues to increase, the healthy travel of the elderly has become a hot topic of social concern. The aging of body functions makes the elderly very prone to falls in daily life, causing fractures, cerebral hemorrhage, myocardial infarction and other diseases, and even life-threatening.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a remote interconnected first aid alarm device with a fall posture judgment, which can detect whether the elderly have fallen, monitor the health status and respond in case of an accident. Calling the police in time can more effectively obtain information on the health status of the elderly, and reduce the harm caused by falling without timely treatment.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A remote interconnected first aid alarm device with fall posture judgment, comprising:

Fall recognition module 3, based on the acceleration sensor installed on the human body, realizes human body activity perception by acquiring angle, acceleration, and displacement changes;

The body temperature detection module 4 is arranged under the armpit of the human body to collect the body temperature in real time;

The pulse detection module 5 is arranged on the human body to collect the human pulse in real time;

The processor module 1 receives the detection data of the fall detection module 3, the body temperature detection module 4 and the pulse detection module 5, and performs early warning and judgment according to preset conditions;

The power supply module 2 realizes power supply;

Information display module 6, information display;

Voice alarm module 7, voice alarm.

The fall recognition module 3 adopts an acceleration sensor ADXL345, and takes the processor module 1 as the operation core.

There are two acceleration sensors, and when the two acceleration sensors detect that the inclination angle of the human body is greater than 60 degrees, the displacement is greater than the thigh length, and the acceleration is greater than the acceleration generated when sitting down, it is determined that the user has fallen.

Two acceleration sensors can be placed on the front and side of the human body respectively to realize the recognition of the user falling from the front or side;

Or place two acceleration sensors on the torso and legs of the human body respectively, so as to realize the identification of the user completely falling or sitting on the ground.

The body temperature detection module 4 adopts a temperature sensor DS18B20, is placed under the armpit of the human body, collects body temperature information, displays the body temperature on the digital tube, and sends the temperature information to the processor module 1 at the same time, and the processor module 1 performs judgment to realize the above. Lower limit alarm function, alarm when the measured data exceeds the normal range.

Described pulse detection module 5 adopts infrared pulse sensor HKG——07A, gathers pulse signal, obtains pulse signal related to pulse after preamplification circuit, filter circuit, A/D conversion circuit, and this pulse signal is exchanged as interrupt signal The pulse period is calculated by the processor module 1, and then the pulse rate per minute is obtained, which is the heart rate, and the heart rate is displayed on the digital tube. The processor module 1 simultaneously judges the heart rate to realize the upper and lower limit alarm function. When the measured data exceeds the normal Alarm when out of range.

The information display module 6 adopts an eight-digit digital tube, which is placed on the chest, and the information detected by the body temperature and pulse detection module is displayed on the digital tube in turn.

The voice alarm module 7 includes a voice unit, a GPS unit and a communication unit. When the embedded microcontroller recognizes that the user has fallen according to the information collected by the fall detection module or judges the user's body according to the information detected by the body temperature and pulse detection module. When the situation is abnormal, the automatic alarm module is triggered, the voice unit gives a voice alarm, the GPS unit transmits the current location to the processor module 1, and the processor module 1 controls the communication unit to dial the pre-stored phone number of the user’s relatives to realize remote help, and the help information is pre-recorded Voice clip + current location, or pre-stored text content + current location, or active voice.

The power module 2 is a mobile power supply, placed at the waist, with dual USB outputs, and provides power to the user's mobile phone while supplying power to other modules. At the same time, the flexible solar panel is equipped on the back of the user's clothes. When traveling, Convert sunlight into electricity by photoelectric conversion.

Compared with the prior art, the present invention revolves around the embedded chip STM32, adopts embedded technology, wireless communication technology, GPS positioning technology, etc., and designs a fall posture judgment system including fall recognition, heart rate and body temperature detection and abnormal alarm. The remote interconnected first aid alarm device can ensure that the elderly can be effectively rescued in case of travel accidents.

The invention uses flexible solar panels to supplement electric energy, which embodies the concept of energy saving and environmental protection; not only can it accurately identify whether the user has fallen by judging the posture of the human body, but more importantly, it can judge the type of the fall, and monitor the user's body temperature and pulse in real time information; it can automatically make a call to the user's relatives and display the GPS location information on the mobile phone.

Description of drawings

Fig. 1 is a system block diagram of the present invention.

Fig. 2 is a block diagram of the pulse detection principle of the present invention.

Fig. 3 is a structural diagram of the voice alarm module of the present invention.

Fig. 4 is a working flow diagram of the present invention.

detailed description

The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

Referring to Fig. 1, the remote interconnected emergency alarm device with fall posture judgment includes: 1. Processor module 2, power supply module 3, fall recognition module 4, body temperature detection module 5, pulse detection module 6, information display module 7, Voice alarm module.

The processor module 1 is connected to the fall recognition module 3, the body temperature detection module 4, the pulse detection module 5, the information display module 6 and the voice alarm module 7 respectively, and the power supply module 2 supplies power to the above-mentioned parts.

Processor module 1 is the center of the remote interconnected first aid alarm device with fall posture judgment. It adopts ARM series microcontroller STM32F103ZET6, which has the advantages of high performance, low cost and low power consumption.

The power module 2 chooses a large milliampere mobile power supply, placed on the waist, with dual USB outputs, which can provide power to the user's mobile phone while supplying power to the working module of the device. At the same time, the flexible solar panel is equipped on the back of the user's clothes, which can At the same time, sunlight is converted into electrical energy through photoelectric conversion. It not only improves the battery life of the device, but also is economical, non-polluting, and conforms to the concept of green environmental protection.

See Figure 2, the pulse detection module uses the infrared pulse sensor HKG—07A, which uses the sensitivity of specific wavelength infrared rays to the change in blood volume produced by the blood microcirculation at the end of the blood vessel to detect the blood change at the fingertip due to the beating of the heart, that is, the pulse signal After the preamplifier circuit, filter circuit, and A/D conversion circuit, a pulse signal related to the pulse is obtained. The pulse signal is used as an interrupt signal and is handed over to the processor module 1 for calculation of the pulse period, and then the pulse rate per minute is obtained. The frequency is the heart rate, and the heart rate is displayed on the digital tube, and the sensor outputs a complete pulse wave voltage signal that reflects the change in fingertip blood volume. The processor module 1 simultaneously judges the heart rate to realize the upper and lower limit alarm function, and gives an alarm when the measured data exceeds the normal range.

The body temperature detection module 4 uses a temperature sensor DS18B20, which is placed under the armpit of the human body to collect human body temperature information, display the body temperature on the digital tube, and send the temperature information to the processor module 1, and the processor module 1 makes judgments to realize the upper and lower limit alarm function , to give an alarm when the measured data exceeds the normal range.

The information display module 6 adopts eight digital tubes, which are placed on the chest, and the information detected by the body temperature and pulse detection module is displayed on the digital tubes in turn.

The voice alarm module 7 includes a voice unit, a GPS unit and a communication unit. When the embedded microcontroller recognizes that the user has fallen according to the information collected by the fall detection module or judges that the user's physical condition is abnormal according to the information detected by the body temperature and pulse detection module Afterwards, the automatic alarm module is triggered, and the voice unit performs a voice alarm. The GPS unit is the GPS chip M-9129, which transmits the current location to the processor module 1, and the processor module 1 controls the communication unit to dial the pre-stored phone number of the user's relatives to realize remote help. The information is a pre-recorded voice segment + current location, or a pre-stored text content + current location, or an active voice.

Referring to FIG. 3 , the core of the fall judgment in the present invention is the fall recognition module 3 , which adopts the acceleration sensor ADXL345 and uses the processor module 1 as the operation core.

There are two acceleration sensors. When the two acceleration sensors detect changes in acceleration, displacement, and angle, they send the data to the processor to determine the occurrence of different falls and detect whether the user has fallen.

However, when a person falls, there are different postures. It may be a frontal fall or a side fall, or a complete fall or a fall on the ground. The two sensors are respectively placed on the front torso and side legs of the human body. The front and side installation can ensure accurate recognition whether the user falls from the front or the side, and the torso and leg installation can ensure that the user can accurately identify whether the user falls completely or sits on the ground.

The judgment condition of the angle is whether it is greater than 60 degrees, the judgment condition of the displacement is whether it is greater than the thigh distance, and the judgment condition of the acceleration is whether it is greater than the acceleration of ordinary people sitting down.

Situation 1: The acceleration, displacement and angle conditions of the front sensor are satisfied, and the processor judges that the alarm condition of falling from the front is met.

Situation 2: The acceleration, displacement and angle conditions of the side sensor are satisfied, and the processor judges that the alarm condition of falling from the side is met.

Situation 1 and Situation 2 all belong to complete fall.

Case 3: The acceleration and displacement conditions of the front sensor are satisfied, the angle conditions of the side sensor are satisfied, and the processor judges that the alarm condition of falling to the ground is met.

Situation 4: The acceleration condition of the front torso sensor is satisfied, the angle and acceleration conditions of the side leg sensors are satisfied, the processor judges that the person is sitting down quickly, and the alarm condition is not satisfied.

Situation 5: When the angle and displacement conditions of the front torso sensor are satisfied, and the angle and displacement conditions of the side leg sensors are satisfied, the processor judges that the person is lying down slowly, and the alarm condition is not met.

The two sensors complement each other. When ordinary users travel, running, jumping, walking or general sports conditions are distinguished, which greatly reduces the occurrence of misjudgment by the device. At the same time, when the sensor detects and transmits data, the Kalman filter is used to denoise and optimize the data, which effectively suppresses the excessive data deviation caused by sensor drift and affects the accuracy of judgment.

In the present invention, when the embedded micro-controller recognizes that the user has fallen according to the information collected by the fall detection module, or judges that the user's physical condition is abnormal according to the information detected by the body temperature and pulse detection module, the automatic alarm module is triggered to dial the number of the user's relatives. The phone realizes remote help, and relatives can check the user's location obtained by the GPS positioning module through the mobile phone, and carry out timely treatment.

Referring to Figure 4, the workflow of the remote interconnected emergency alarm device with fall posture judgment is as follows:

1) The user installs the device on the clothing, presses the power button, powers on, and the system initializes.

2) The body temperature detection module, pulse detection module, and fall detection module start to work, and the detected body temperature data and pulse data are displayed on the digital tube in turn, and users can know their own temperature and heart rate information according to the display.

3) When the user falls and the upper and lower limits of body temperature and heart rate are triggered, the detection module detects an abnormality, sends the abnormal information to the embedded microprocessor, and triggers the operation of the alarm module.

4) When the alarm module starts to work, it will automatically dial the phone numbers of relatives and friends stored in the module. At the same time, relatives and friends can check the user's GPS location through the mobile phone, and talk to the user, judge the user's physical condition, and decide to rescue the user.

In the present invention, the processor module 1 controls the communication unit to dial the pre-stored phone number of the user's relatives to realize remote help-seeking, and the help-seeking information is a pre-recorded voice segment+current location, or a pre-stored text content+current location, or an active voice, and at the same time, A short message can be sent to the dialed phone synchronously. The content of the short message is the type of falling posture judged by the processor module 1. After the family members receive the automatic alarm call, they can determine their falling posture according to the text message sent, and determine the fast diagnosis and treatment for the doctor later. best treatment options.

Claims (9)

1. A remote interconnected first aid alarm device with a fall posture judgment, characterized in that it comprises: The fall recognition module (3), based on the acceleration sensor arranged on the human body, realizes human body activity perception by acquiring angle, acceleration, and displacement changes; The body temperature detection module (4) is arranged under the armpit of the human body to collect the body temperature in real time; The pulse detection module (5) is arranged on the human body to collect the human pulse in real time; The processor module (1) receives the detection data from the fall detection module (3), body temperature detection module (4) and pulse detection module (5), and performs early warning and discrimination according to preset conditions; A power supply module (2) realizes power supply; Information display module (6), information display; Voice alarm module (7), voice alarm. 2. The remote interconnected emergency alarm device with fall posture judgment according to claim 1, characterized in that, the fall recognition module (3) adopts an acceleration sensor ADXL345, and takes the processor module 1 as the operation core. 3. The remote interconnected first aid alarm device for judging the band fall posture according to claim 2, wherein the acceleration sensor has two, and when the two acceleration sensors detect changes in acceleration, displacement and angle, the data will be Send to the processor and judge that different fall situations occur, and detect whether the user has fallen. 4. The remote interconnected emergency alarm device with fall posture judgment according to claim 3, characterized in that two acceleration sensors are respectively placed on the front of the trunk and the side of the legs of the human body, and the judgment condition of the angle is whether it is greater than 60° Degree, the judgment condition of displacement is whether it is greater than the thigh distance, and the judgment condition of acceleration is whether it is greater than the acceleration of ordinary people sitting down, then: When the acceleration, displacement and angle conditions of the front sensor are satisfied, the processor judges that the alarm condition of a frontal complete fall is met; When the acceleration, displacement and angle conditions of the side sensor are satisfied, the processor judges that the alarm condition of a complete side fall is met; When the acceleration and displacement conditions of the front sensor are satisfied, and the angle conditions of the side sensor are satisfied, the processor judges that the alarm condition of falling to the ground is met; When the acceleration condition of the front torso sensor is met, and the angle and acceleration conditions of the side leg sensor are met, the processor judges that the person is sitting down quickly, and the alarm condition is not met; When the angle and displacement conditions of the front torso sensor are satisfied, and the angle and displacement conditions of the side leg sensors are satisfied, the processor judges that the person is lying down slowly, and the alarm condition is not satisfied. 5. The remote interconnection first aid alarm device with judgment of falling posture according to claim 1, characterized in that, the body temperature detection module (4) adopts a temperature sensor DS18B20, is placed under the armpit of the human body, and collects the temperature information of the human body. The body temperature is displayed on the digital tube, and the temperature information is sent to the processor module (1) at the same time. The processor module (1) judges to realize the upper and lower limit alarm function, and alarms when the measured data exceeds the normal range. 6. The remote interconnected first aid alarm device with fall posture judgment according to claim 1, characterized in that, the pulse detection module (5) adopts an infrared pulse sensor HKG——07A to collect pulse signals and pass through the front Amplifying circuit, filtering circuit, A/D conversion circuit obtain the pulse signal related to the pulse, the pulse signal is given to the processor module (1) as an interrupt signal to calculate the pulse cycle, and then the pulse number per minute is obtained. heart rate, and display the heart rate on the nixie tube, the processor module (1) simultaneously judges the heart rate to realize the upper and lower limit alarm function, and gives an alarm when the measured data exceeds the normal range. 7. The remote interconnected first aid alarm device with fall posture judgment according to claim 1, characterized in that, the information display module (6) adopts eight digital tubes, placed on the chest, and the body temperature and pulse detection module The detected information is displayed on the digital tube in turn. 8. The remote interconnected first aid alarm device of the band fall posture judgment according to claim 1, characterized in that, the voice alarm module (7) comprises a voice unit, a GPS unit and a communication unit, when the embedded micro-controller according to The information collected by the fall detection module recognizes that the user has fallen or judges that the user's physical condition is abnormal according to the information detected by the body temperature and pulse detection module, and then triggers the automatic alarm module, the voice unit gives a voice alarm, and the GPS unit transmits the current location to the processing The device module (1), the processor module (1) controls the communication unit to dial the pre-stored phone number of the user's relatives to realize remote help-seeking, and the help-seeking information is a pre-recorded voice segment + current location, or a pre-stored text content + current location, or an active voice . 9. The remote interconnected first aid alarm device with judgment of falling posture according to claim 1, characterized in that, the power module (2) is a mobile power supply, placed on the waist, dual USB output, for other modules While supplying power, it provides electric energy for the user's mobile phone, and at the same time, the flexible solar panel is equipped on the back of the user's clothes. While traveling, it converts sunlight into electrical energy through photoelectric conversion.