CN110179638A - A kind of intelligence row monitoring crutch and system based on Internet - Google Patents

Abstract

The invention discloses an Internet-based smart walking monitoring crutch and system. The monitoring crutch includes a crutch body, an intelligent device and a power supply module; the power supply module is connected to the intelligent device and is used to supply power to the intelligent device; The smart device includes: a microprocessor unit and an acceleration acquisition unit and an interaction unit that are respectively connected to the microprocessor unit; the microprocessor unit is used to process the data collected by the acceleration acquisition unit, and when processed When the data exceeds the preset threshold, the interactive unit is controlled to issue an alarm message; the alarm message is an audible and visual reminder. The acceleration acquisition unit in the monitoring crutch can detect the acceleration in three directions in real time. The acquisition and processing of the acceleration data is realized by the microprocessor unit, and the detection is accurate. When the acceleration data exceeds the preset threshold, that is, when an accident occurs, the Alarm, control the interactive unit to send out sound and light reminders.

Description

An internet-based intelligent mobility monitoring crutch and system

technical field

The invention relates to the field of fall detection and alarm, in particular to an Internet-based smart walking monitoring crutch and system.

Background technique

With the increasing pace of life and the increasing pressure of work and work, people put more and more energy into their work, and the care of the family, especially the elderly, seems powerless. Many accidents of the elderly are left unattended. occurred under the circumstances. The World Health Organization believes that falls are the third leading cause of chronic disability in the elderly. According to relevant statistics, about 30.5% of the elderly over the age of 65 and 50% of the elderly over the age of 80 have fallen, resulting in fractures, soft tissues, contusions, And brain damage, etc., affect the normal physiology and physical and mental health of the elderly, and increase the pain and burden of the family.

The incidence of falls in the elderly is high and the consequences are serious. It is the first cause of injury death in the elderly. In our country, falls rank fourth among the causes of accidental injury death, and rank first among the elderly over 65 years old, and the death rate of falls increases sharply with age, and falls among the elderly over 85 years old. Humans have reached their peak.

The fall detection system provides appropriate and timely nursing assistance and medical services by monitoring the movement and some physiological functions of the remote object. In daily life, due to the degradation of physiological functions, the elderly have a high probability of accidental falls, which can cause great physical and mental harm to the elderly. After the elderly fall, there will be many negative psychological and physical traumas, and falls are also an important cause of travel accidents for the elderly. At present, high-tech technologies such as sensors, micro-electronic machinery, and communications have been widely used in production, business and other fields, but the utilization rate in improving the quality of life of the elderly is not high.

Contents of the invention

Aiming at the problems of increasing aging and the low quality of life of the elderly, the present invention provides an Internet-based intelligent monitoring crutch, which can be used for fall detection, and the alarm information will be sent out sound and light reminders through the switching unit.

In the first aspect, the embodiment of the present invention provides an Internet-based intelligent walking monitoring crutch, including a crutch body, a smart device, and a power module; the smart device and the power module are located on the crutch body; the power module and the smart device connection for powering the smart device;

The smart device includes: a microprocessor unit and an acceleration acquisition unit and an interaction unit that are respectively connected to the microprocessor unit;

The microprocessor unit is used to process the data collected by the acceleration acquisition unit, and when the processed data exceeds a preset threshold, control the interaction unit to send out an alarm message; the alarm message is an audible and visual reminder.

In one embodiment, the smart device further includes a wireless communication unit connected to the microprocessor unit; the wireless communication unit is a SIM900A wireless transmission module;

When the processed data exceeds the preset threshold, the microprocessor unit sends alarm information to the monitoring client terminal matched with the crutch through the SIM900A wireless transmission module.

In one embodiment, the smart device further includes: a GPS positioning unit connected to the microprocessor unit;

When the processed data exceeds the preset threshold, the microprocessor unit sends the positioning information and alarm information collected by the GPS positioning unit to the monitoring service terminal through the SIM900A wireless transmission module.

In one embodiment, the GPS positioning unit is a VK2828U7G5LF module.

In one embodiment, the interaction unit includes: function buttons, LED indicator lights and buzzers;

The microprocessor is respectively connected with the function keys, the LED indicator light and the buzzer.

In one embodiment, the microprocessor unit is a STC12C5A60S2 single-chip microcomputer.

In one embodiment, the acceleration acquisition unit is an ADXL345 acceleration sensor;

The microprocessor unit compares the three-axis acceleration collected by the ADXL345 acceleration sensor with a threshold; when the value of at least one axis exceeds the threshold and reaches a preset duration, the interactive unit is controlled to send an alarm message.

In one embodiment, the power module includes: a rechargeable battery and a charging module connected thereto;

The charging module is provided with one or more of the following:

miniUSB interface, MIcro usb interface, Type-c interface, 30pin interface and lightning interface.

In the second aspect, the present invention also provides an Internet-based Zhixing guardianship crutch system, including the Zhixing guardianship crutch and guardianship client terminal described in any one of the above-mentioned embodiments;

The monitoring client terminal is used to receive the alarm information sent by the microprocessor unit through the wireless communication unit.

In one embodiment, the monitoring client terminal is also used to receive the positioning information and alarm information sent by the microprocessor unit through the wireless communication unit;

The system also includes: a monitoring service terminal;

The monitoring service terminal is used to receive the positioning information and alarm information sent by the microprocessor unit through the wireless communication unit, and forward the positioning information and alarm information to the corresponding monitoring client terminal.

The advantage of the present invention is that, compared with the prior art, the technical solution proposed by the present invention is an Internet-based smart walking crutch, including a crutch body, a smart device and a power module; the smart device and the power module are located on the crutch On the body; the power supply module is connected with the smart device for supplying power to the smart device; the smart device includes: a microprocessor unit and an acceleration acquisition unit and an interactive unit respectively connected to the microprocessor unit unit; the microprocessor unit is used to process the data collected by the acceleration acquisition unit, and when the processed data exceeds a preset threshold, control the interactive unit to send an alarm message; the alarm message is an audible and visual reminder . The acceleration acquisition unit in the monitoring crutch can detect the acceleration in three directions in real time. The acquisition and processing of the acceleration data is realized by the microprocessor unit, and the detection is accurate. When the acceleration data exceeds the preset threshold, that is, when an accident occurs, the Alarm, control the interactive unit to send out sound and light reminders.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a structural diagram of the Internet-based smart walking monitoring crutch provided in the embodiment of the present invention.

FIG. 2 is a structural block diagram of an Internet-based intelligent device 2 for monitoring crutches provided in an embodiment of the present invention.

Fig. 3 is a flowchart of a fall detection algorithm provided in an embodiment of the present invention.

Fig. 4 is a schematic diagram of data transmission to the guardianship service terminal provided in the embodiment of the present invention.

Fig. 5 is a structural diagram of the Internet-based Zhixing monitoring crutch system provided in the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Referring to Figures 1-2, the present invention provides an Internet-based smart walking crutch, including: a crutch body 1, a smart device 2 and a power module 3; wherein: the smart device 2 and the power module 3 are located on the crutch body 1, such as Can be embedded in the crutch body 1 . The crutch body 1 includes sequentially connected handle grips, support rods and feet; as a simple device for assisting walking, the users are usually the elderly or people with disabilities, and can be made of various materials, such as wood or metal. production. The crutch body 1 has a mounting groove for placing or installing the smart device 2 and the power module 3; as long as it does not affect the role of the crutch as an auxiliary walking support, the present invention is for the smart device 2 and the power module 3 on the crutch body 1 The specific location is not limited.

The above-mentioned power supply module 3 is connected with the smart device 2 for supplying power to the smart device 2; the smart device 2 includes: a microprocessor unit 21 and an acceleration acquisition unit 22 and an interaction unit 23 respectively connected to the microprocessor unit 21;

The microprocessor unit 21 is used to process the data collected by the acceleration collection unit 22, and when the processed data exceeds a preset threshold, the control interaction unit 23 sends out an audible and visual alarm message.

The acceleration acquisition unit in the monitoring crutch can detect the acceleration in three directions in real time. The acquisition and processing of the acceleration data is realized by the microprocessor unit, and the detection is accurate. When the acceleration data exceeds the preset threshold, that is, when an accident occurs, the Alarm, control the interactive unit to send out sound and light reminders.

In one embodiment, as shown in FIG. 2, the smart device 2 also includes a wireless communication unit 24 connected to the microprocessor unit; , and a SIM card holder. For example, insert the SIM card into the SIM card holder of the module, and the module can really work. The SIM900A wireless transmission module first converts the alarm information into a digital signal, and then transmits the digital signal through the wireless network, and transfers a string of data, such as its composition structure: device ID+status<elderly status>+terminator, through SIM, based on GPRS Or the GSM network sends to the monitoring client terminal matched with the crutch. For example, when an old man uses crutches or falls down, the SIM will send it to the monitoring mobile phone of the old man's son, and the receiver will make corresponding processing according to the alarm information.

In one embodiment, as shown in FIG. 2 , it further includes: a GPS positioning unit 25 connected to the microprocessor unit 21 , for example, a VK2828U7G5LF module can be selected.

Specifically, for example, SIMCom’s compact product——SIM900A in the above embodiment, which belongs to the dual-frequency GSM/GPRS module, is completely packaged in SMT, has stable performance, compact appearance, and high cost performance, and can meet various needs. SIM900A adopts industry standard interface, the working frequency is GSM/GPRS900/1800MHz, it can realize the transmission of voice, SMS, data and fax information with low power consumption. In addition, the size of SIM900A is 24*24*3mm, which is especially suitable for the compact product design of monitoring crutches.

In this embodiment, the wireless communication module SIM900A first converts the alarm information into a digital signal, and then transmits the digital signal through the wireless network, and transfers a string of data, such as its composition structure: device ID+state<elderly state, whether to locate GPS>+latitude and longitude+terminator) to the monitoring service terminal, and finally this string of data will be forwarded by the monitoring service terminal, and will be received by the mobile terminal, and the recipient will make corresponding processing according to the alarm information. The receiving terminal should be able to allocate information such as the address and size of the received data. In order to clarify the address of the receiving end, it must have a fixed IP address.

In one embodiment, the microprocessor unit selects STC12C5A60S2 single-chip microcomputer as the main control chip. This single-chip microcomputer is a single-clock/machine cycle (1T) single-chip microcomputer produced by STC, and is a new generation of 8051 single-chip microcomputer with high speed/low power/extended anti-jamming , the instruction code is fully compatible with 8051, but the speed is 8-12 times faster. Internally integrated MAX810 dedicated reset circuit, 2-way PWM, 8-way high-speed 10-bit A/D conversion. The microcontroller also includes central processing (CPU), program memory (Flash), data memory (SRAM), timer/timer, UART serial port, serial port 2, I/O interface, PCA, watchdog and on-chip R/C oscillator Modules such as devices and external crystal oscillator circuits. The STC12C5A60S2 single-chip microcomputer contains almost all the unit modules required in data processing and control, which can be called a system-on-chip. And it has dual serial ports, two independent serial ports, high-speed 10-bit A/D converter, 8 channels, 1 clock/machine cycle 8051.

In one embodiment, the acceleration acquisition unit 22 is an ADXL345 acceleration sensor. The process of the human body falling is accompanied by body imbalance. Due to the action of gravity, the human body accelerates and falls to the ground. This process is generally irreversible. This process generally occurs within 1-3 seconds, a very short period of time. The ADXL345 accelerometer can measure static acceleration due to gravity in tilt detection applications, as well as dynamic acceleration caused by motion or shock. Its high resolution (3.9mg/LSB) enables measurement of tilt angle changes of less than 1.0°. The inclination angle refers to the bending angle of the body trunk, including the left and right inclination and the front and rear inclination of the trunk. The direction in which the human body falls can also be judged according to the inclination angle. Studies have shown that when the human body is standing, the angle between the body and the vertical direction generally does not exceed 60 degrees. But it is difficult to classify body poses completely and correctly based on the angle of inclination alone. Therefore, the tilt angle is often used as an auxiliary indicator for posture classification, and further judgments on possible fall events are made. The vertical velocity is similar to the acceleration value, and the vertical velocity curve can also represent the kinematic characteristics of the different stages of the falling process. All falls go through a certain stage in the downward vertical velocity curve. The data collected by the ADXL345 module can be used as effective parameters for fall prediction.

The acceleration of the human body during motion on the earth can be decomposed into components in three directions. The acceleration in the x-axis direction is a _x , the acceleration in the y-axis direction is a _y , and the acceleration in the z-axis direction is a _z . Then the acceleration vector of human motion is SVM represents the magnitude of the combined acceleration of the human body, and its value reflects the magnitude of the acceleration of the human body movement. The advantage of this eigenvalue is that the spatial three-dimensional acceleration is synthesized into a vector, and the spatial direction of the vector can be ignored when judging the threshold, and only whether it exceeds a certain threshold can be judged.

The process of fall detection is shown in Figure 3. First, the acceleration sensor ADXL345 takes the acceleration of three axes, then compares the collected acceleration with the threshold, and then judges whether the threshold of at least one axis exceeds the threshold. If it does not exceed, continue to collect the acceleration of the three axes; if it exceeds, for example, delay for 15s. During the delay process, if it is a false fall, the acceleration of the three axes will continue to be collected. If it is not a false fall, the guardian crutches will send an alarm to the guardian service terminal and forward it to the guardian. After receiving this dangerous message, the guardian will be notified in time. , carry out rescue treatment as soon as possible.

The purpose of the smart walking monitoring crutch of the present invention is to achieve the alarm and hope to obtain necessary rescue, which involves the data transmission problem of the alarm information. Rescue first needs to know the location of the injured, choose SIM900A module, and match it with SIM card and GPS positioning unit to realize the transmission of the alarm and positioning information, and the sending and receiving of this data is realized through the serial port of the single chip microcomputer in the form of AT commands . When an accidental fall is detected, it will be uploaded to the monitoring service terminal through an AT command data (data structure: device ID+status<elderly status, whether to locate GPS>+latitude and longitude+terminator), as shown in Figure 4. After a forwarding process is performed by the server, the mobile phone is requesting a data from the server to realize the forwarding of the data, so as to notify the guardian in time and carry out rescue treatment as soon as possible.

In one embodiment, the power supply module 3 includes a rechargeable battery and a charging module, wherein the rechargeable battery is a lithium battery, and the charging management module can realize charging and protection functions. The charging module may be provided with one or more interfaces, such as miniUSB interface, MIcro usb interface, Type-c interface, 30pin interface and lightning interface. For example, when there is a miniUSB type interface socket, you can directly use the mobile phone charger as input to charge the lithium battery.

The input voltage of the charging module is 5V, the charging cut-off voltage is 4.2V, the charging current is 1000mA, the battery over-discharge protection voltage is 2.5V, and the battery over-current protection current is 3A, which can be used for 18650, polymer and other lithium batteries with a voltage of 3.6-3.7V Charge and discharge protection, single or multiple parallel can also be used.

In the Internet-based intelligent monitoring crutch provided by the present invention, the single-chip microcomputer preprocesses the signal, performs algorithm judgment according to the data collected by the acceleration sensor, and transmits it to the monitoring service terminal through the wireless communication unit. That is, the three-axis acceleration of the human body can be collected in real time and sent to the single-chip microcomputer through the I2C interface. At the same time, the single-chip microcomputer inputs AT commands, and the single-chip microcomputer can process the data through the serial interface and send it to the upper monitoring platform through the SIM900A wireless transmission module. The platform forwards the alert information. Among them, the interactive unit mainly includes function buttons, LED indicator lights and buzzers, wherein the function buttons provide users with the function of canceling false alarms, the LED indicators are mainly used to display the connection status of the communication network, and the buzzer detects a fall A feedback alarm signal can be obtained at any time, and it can also be used as an alarm when it is not connected to a remote monitoring service terminal to make a sound so that people around can hear it, thereby realizing the rescue of the elderly.

In the second aspect, the present invention also provides an Internet-based Zhixing monitoring crutch system, as shown in FIG. 5 , including the Zhixing monitoring crutch 51 and the monitoring client terminal 52 described in any one of the above-mentioned embodiments;

The monitoring client terminal 52 is used to receive the alarm information sent by the microprocessor unit through the wireless communication unit, such as the SMS notification obtained directly; according to the SMS notification, rescue the elderly in time.

Further, the system also includes: a guardianship service terminal 53; the guardianship service terminal 53 is used to receive the positioning information and alarm information sent by the microprocessor unit through the wireless communication unit, and forward the positioning information and alarm information to the corresponding Monitor client terminals. At this time, the guardianship client terminal can be an APP software installed on the mobile phone, and obtains the alarm information sent by the guardianship service terminal server. According to the alarm information, the elderly are rescued in time.

An embodiment is used to illustrate the working process of the Internet-based Zhixing monitoring crutch system.

Step S1: The acceleration sensor in the crutch collects and measures the changes in acceleration and inclination angle caused by movement or impact. According to the inclination angle, it can also be judged whether the human body has fallen. The single-chip microcomputer collects the data of the acceleration sensor module, conducts centralized analysis and processing of the collected data, and performs alarm and control according to the operating conditions;

Step S2: The single-chip microcomputer also completes the alarm prompt of the buzzer in the hardware circuit, and uploads the collected data to the monitoring service terminal through the SIM900A wireless transmission module for back-end data processing and analysis;

Step S3: When the acceleration sensor detects an abnormal acceleration value, the single-chip microcomputer will perform a fall algorithm judgment to determine whether it has fallen.

Step S4: When the microcontroller judges that there is a fall, it will delay the judgment for 15 seconds. If it falls by mistake, it will provide the user with the button function to cancel the alarm. If the crutch is not lifted up for more than 15 seconds, the microcontroller will upload the data to the monitoring The service terminal is processed by the guardianship service terminal and sent to the guardian's mobile phone APP, and the alarm prompts.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent replacements to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all of them should be included in the scope of the present invention. within the scope of the claims.

Claims (10)

1. a kind of intelligence row based on Internet guards crutch, which is characterized in that including crutch body (1), smart machine (2) and Power module (3)；The smart machine (2) and power module (3) are located in the crutch body (1)；The power module (3) It is connect with the smart machine (2), for powering for the smart machine (2)；

The smart machine (2) includes: microprocessor unit (21) and connect respectively with the microprocessor unit (21) Acceleration acquisition unit (22) and interactive unit (23)；

The data that the microprocessor unit (21) is used to acquire the acceleration acquisition unit (22) are handled, and work as processing When data afterwards are more than preset threshold, control the interactive unit (23) and send a warning；The warning information mentions for acousto-optic It wakes up.

2. a kind of intelligence row based on Internet according to claim 1 guards crutch, which is characterized in that the intelligence is set Standby (2) further include the wireless communication unit (24) connecting with microprocessor unit (21)；The wireless communication unit (24) is SIM900A wireless transport module；

When treated data are more than preset threshold, the microprocessor unit (21) by warning information by SIM900A without Line transmission module is sent to and the matched monitoring client terminal of the crutch.

3. a kind of intelligence row based on Internet according to claim 2 guards crutch, which is characterized in that the intelligence is set Standby (2) further include: the GPS positioning unit (25) being connect with microprocessor unit (21)；

When treated data are more than preset threshold, the microprocessor unit (21) adopts the GPS positioning unit (25) The location information and warning information of collection are sent to monitoring service terminal by the SIM900A wireless transport module.

4. a kind of intelligence row based on Internet according to claim 3 guards crutch, which is characterized in that the GPS is fixed Bit location (25) is VK2828U7G5LF module.

5. a kind of intelligence row based on Internet according to claim 1 guards crutch, which is characterized in that the interaction is single First (23) include: function button, LED light and buzzer；

Respectively with the function button, LED light connects the microprocessor unit (21) with buzzer.

6. a kind of intelligence row based on Internet according to claim 1 guards crutch, which is characterized in that the micro process Device unit (21) is STC12C5A60S2 single-chip microcontroller.

7. a kind of intelligence row based on Internet according to claim 1 guards crutch, which is characterized in that the acceleration Acquisition unit (22) is ADXL345 acceleration transducer；

The three axis direction acceleration and threshold value phase that the microprocessor unit (21) acquires the ADXL345 acceleration transducer Compare；When the data of at least one axis are more than threshold value, and reach preset duration, control the interactive unit (23) and sound an alarm Information.

8. a kind of intelligence row based on Internet according to claim 1 guards crutch, which is characterized in that the power supply mould Block (3) includes: rechargeable battery and charging module connected to it；

The charging module is equipped with following one or more:

MiniUSB type interface, MIcro usb interface, Type-c interface, 30pin interface and lightning interface.

9. a kind of intelligence row based on Internet guards crutch system, which is characterized in that including any one of such as claim 1-8 institute The intelligence row monitoring crutch and monitoring client terminal stated；

The monitoring client terminal, for receiving the microprocessor unit (21) police that unit (24) is sent by wireless communication It notifies breath.

10. a kind of intelligence row based on Internet according to claim 9 guards crutch system, which is characterized in that described Client terminal is guarded, is also used to receive the microprocessor unit (21) location information that unit (24) is sent by wireless communication And warning information；

The system also includes: monitoring service terminal；

The monitoring service terminal, for receive the microprocessor unit (21) by wireless communication unit (24) send determine Position information and warning information, and the location information and warning information are transmitted to corresponding monitoring client terminal.