CN115457734A - Drowning detection system and working method thereof - Google Patents
Drowning detection system and working method thereof Download PDFInfo
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- CN115457734A CN115457734A CN202211057705.8A CN202211057705A CN115457734A CN 115457734 A CN115457734 A CN 115457734A CN 202211057705 A CN202211057705 A CN 202211057705A CN 115457734 A CN115457734 A CN 115457734A
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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
- G08B21/08—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
- G08B21/088—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water by monitoring a device worn by the person, e.g. a bracelet attached to the swimmer
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a drowning detection system and a working method thereof, wherein the drowning detection system comprises an alarm base station and a drowning detection bracelet, wherein the alarm base station and the drowning detection bracelet are connected and transmit information through a wireless communication module; the wireless communication module is a frequency band wireless communication frequency band lower than 1 GHz; the wireless communication module is used for the MCU to communicate with the alarm base station, sending alarm information and measurement data to the base station and reminding security personnel of paying attention to relevant dynamic information of a wearer at any time; the main structure of the drowning detection bracelet comprises a wireless communication module, an attitude sensor, an MCU, a flash memory, a screen, a water immersion module, a battery, a vibration module and a flash lamp. The wireless communication module adopted by the invention is a frequency band wireless communication frequency band lower than 1GHz, whether the wearer is in a drowned state is judged through the attitude sensor, and the accuracy rate of timely alarming reaches more than 95%.
Description
Technical Field
The invention belongs to the field of wireless communication monitoring and early warning equipment, and particularly relates to a drowning detection system and a working method thereof.
Background
The potential risk of swimming is drowning, and drowning events can be timely found to reduce drowning, so people pay more attention to safety guarantee. Drowners generally have no noise, and can not call for help due to cramping, collision, diseases or mental stress, so that the optimal rescue time is avoided from missing, various measures are taken, such as monitoring by lifeguards, the defects of numerous swimming pool personnel, inevitable omission of manual monitoring and low monitoring efficiency are overcome; the camera monitoring has the defects of large video data volume, low processing speed and delay of the optimal rescue time. Various drowning monitoring systems are designed in the prior art, such as an ultrasonic array is arranged to detect the movement rate of swimming action of a swimmer, or an ultrasonic radar is used to detect whether an object which does not move appears at the bottom of a swimming pool, and then the result of whether the swimmer drowns is processed and analyzed by a remote computer is judged.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects of the prior art, the invention provides a drowning detection system and a working method thereof.
The technical scheme is as follows: a drowning detection system comprises an alarm base station and a drowning detection bracelet, wherein the alarm base station and the drowning detection bracelet are connected and transmit information through a wireless communication module;
the drowning detection bracelet comprises a main body structure and a drowning detection bracelet body, wherein the main body structure comprises a wireless communication module, an attitude sensor, an MCU (micro control unit), a flash memory, a screen, a water immersion module, a battery, a vibration module and a flash lamp;
the wireless communication module is a frequency band wireless communication frequency band lower than 1 GHz; the wireless communication module is used for the MCU to communicate with the alarm base station, sending alarm information and measurement data to the alarm base station and reminding security personnel of paying attention to the relevant dynamic information of the wearer at any moment;
the attitude sensor is used for acquiring the motion state information of the wearer;
the MCU processes and analyzes the acquired motion state information, and the data analysis result is that an alarm is given in time when the wearer is abnormal;
the flash memory is used for storing basic information and measurement data of a drowning detection bracelet wearer;
the screen is used for displaying the current time, receiving and displaying the motion state information processed and analyzed by the MCU;
the water immersion module is used for detecting whether the wearer is in water or not and verifying whether the wearer is in a drowning state or not;
the battery is used for outputting electric energy to the drowning detection bracelet;
the vibration module is used for increasing the accuracy of alarming, when the drowning detection bracelet judges that the wearer is in a drowning state, the vibration module vibrates firstly to remind the wearer to confirm whether the wearer is in a dangerous state, and if the wearer is not in the dangerous state, the wearer can modify the alarming information manually at the first time without alarming; if the wearing person is in a dangerous state, the wearing person cannot modify alarm information manually, and the drowning detection bracelet can send out an alarm in time;
the flashlight is used for emitting flash light and used as the positioning mark to feed back the position information of the wearer at the first time.
As an optimization: the wireless communication module is a Lora/Lorawan network communication module.
As an optimization: the attitude sensor collects the numerical values of the acceleration and the angular velocity of the wearer during movement and transmits the numerical values to the MCU.
As an optimization: the MCU carries out judgment analysis through N preset judgment standard threshold values, and the following 1 condition is specifically met:
a. judging the values of the acceleration and the angular velocity during the movement, and requiring that the variable between every two values is larger than a certain numerical value and smaller than a certain numerical value; meanwhile, when a certain time is met, the state is in a drowning state within a certain interval threshold value;
b. when the numerical values of the acceleration and the angular velocity fluctuate within a certain threshold interval and reach a certain length, the drowning state is judged.
A working method of a drowning detection system comprises the steps that a drowning detection bracelet detects the state of a wearer in real time, and when the drowning detection bracelet judges that the wearer is in a drowning state, alarm information is sent to an alarm base station through a Lora/Lorawan network communication module; the method comprises the following specific steps:
(1) Sleeving a drowning detection bracelet on the wrist of a wearer, automatically starting the drowning detection bracelet to work, recording and transmitting and analyzing various data in real time, and preparing to alarm at any time;
(2) Judging whether the wearer is in water at present through the water immersion module, if so, acquiring data of human body movement through the attitude sensor, and judging and analyzing whether the wearer is in a normal swimming state or a drowning state according to the data;
(3) If the wearer is in a drowning state, the drowning detection bracelet firstly vibrates through the vibration module to confirm whether the wearer is in a dangerous state, alarm information is sent to an alarm base station through a Lora/Lorawan network communication module after the danger is confirmed, and meanwhile, a flash lamp can carry out flash positioning alarm;
(4) And after the alarm base station receives the alarm information, arranging security personnel to perform rescue actions immediately.
As an optimization: the alarm base station regularly stores and updates data, starts a self-checking function and regularly charges.
As an optimization: drowning detect bracelet regularly carry out the storage of data and update to open self-checking function, and regularly charge.
As an optimization: the alarm base station receives alarm information of the drowning detection bracelet in real time, analyzes the received alarm information and displays the analyzed information; the specific process is as follows:
(1) After the alarm base station is started to work, hardware initialization is carried out;
(2) The alarm base station waits for receiving drowning detection bracelet alarm information in real time;
(3) If the alarm base station receives the drowning bracelet alarm information, analyzing the information content;
(4) After the alarm base station analyzes the information, displaying a drowning bracelet for sending an alarm on a base station LCD display screen of the alarm base station by the analyzed information;
(5) The alarm base station sends alarm information to security personnel through a network; the security personnel receive alarm information from a computer end or a handheld mobile communication end, verify that drowning detection bracelet wearers whether have a drowning danger, and if so, perform emergency rescue.
As an optimization: the concrete work flow of drowning detection bracelet do:
(1) Open drowned detection bracelet: wearing a drowning detection bracelet on the wrist of a wearer, and automatically starting drowning detection;
(2) Reading the measurement data: measuring the motion state of the wearer, transmitting the motion state to the MCU, and analyzing whether the current behavior of the wearer is in the motion state in water or not by the MCU according to the measured data;
(3) Drowning analysis of the movement state: if the MCU judges that the wearer is in a motion state at present, whether the current behavior is normal swimming or drowning is judged and analyzed continuously according to the attitude sensor; if the wearer is in a drowned state, the MCU sends alarm information to the alarm base station through the Lora/Lorawan network communication module, and meanwhile, the flash lamp can carry out flash positioning alarm.
Has the beneficial effects that: the wireless communication module adopted by the invention is a frequency band wireless communication frequency band lower than 1GHz, whether the wearer is in a drowned state is judged through the attitude sensor, and the accuracy rate of timely alarming reaches more than 95%.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Examples
As shown in fig. 1, a drowning detection system includes an alarm base station and a drowning detection bracelet, wherein the alarm base station and the drowning detection bracelet are connected and transmit information through a wireless communication module;
the wireless communication module is a frequency band wireless communication frequency band lower than 1 GHz; in this embodiment, the wireless communication module is a Lora/Lorawan network communication module. The wireless communication module is used for the MCU to communicate with the alarm base station, and sending alarm information and measurement data to the base station to remind security personnel of paying attention to the relevant dynamic information of the wearer at any moment.
The main structure of the drowning detection bracelet comprises a wireless communication module, an attitude sensor, an MCU, a flash memory, a screen, a water immersion module, a battery, a vibration module and a flash lamp.
The attitude sensor is used for acquiring the motion state information of the wearer.
The MCU processes and analyzes the acquired motion state information, and the result of data analysis is that the alarm is timely given out when the wearer is abnormal.
The flash memory is used for storing the basic information and the measurement data of the drowning detection bracelet wearer.
The screen is used for displaying the current time, receiving the motion state information processed and analyzed by the MCU and displaying the motion state information.
The water logging module is used for detecting whether the wearer is in water or not and verifying whether the wearer is in a drowning state or not.
The battery be used for detecting bracelet output electric energy to drowning.
The vibration module is used for increasing the accuracy of alarming, when the drowning detection bracelet judges that the wearer is in a drowning state, the vibration module vibrates firstly to remind the wearer to confirm whether the wearer is in a dangerous state, and if the wearer is not in the dangerous state, the wearer can modify the alarming information manually at the first time without alarming; if be in dangerous state, then the person of wearing can not manual modification alarm information, and drowned detection bracelet can in time send the warning.
The flashlight is used for emitting flashing light and used as the positioning mark to feed back the position information of the wearer at the first time.
The wireless communication module is a Lora/Lorawan network communication module.
The attitude sensor collects the numerical values of the acceleration and the angular velocity of the wearer during movement and transmits the numerical values to the MCU.
The MCU carries out judgment analysis through N preset judgment standard threshold values, and the following 1 condition is specifically met:
a. judging the values of the acceleration and the angular velocity during the movement, and requiring that the variable between every two values is larger than a certain numerical value and smaller than a certain numerical value; meanwhile, when a certain time is met, the state is in a drowning state within a certain interval threshold value;
b. when the numerical values of the acceleration and the angular velocity fluctuate within a certain threshold interval and reach a certain time length, the drowning state is judged.
In this embodiment, the working method of the drowning detection system is as follows: the drowning detection bracelet detects the state of a wearer in real time, and when the drowning detection bracelet judges that the wearer is in a drowning state, alarm information is sent to an alarm base station through a Lora/Lorawan network communication module; the method comprises the following specific steps:
(1) Sleeving the drowning detection bracelet on the wrist of a wearer, automatically starting to work, recording and transmitting and analyzing various data in real time, and preparing to alarm at any time;
(2) Judging whether the wearer is in water at present through the water immersion module, if so, acquiring data of human body movement through the attitude sensor, and judging and analyzing whether the wearer is in a normal swimming state or a drowning state according to the data;
(3) If the wearer is judged to be in a drowned state, the drowned detection bracelet firstly vibrates through the vibration module to confirm whether the wearer is in a dangerous state, alarm information is sent to the alarm base station through the Lora/Lorawan network communication module after the wearer is confirmed to be dangerous, and meanwhile, the flash lamp can carry out flash positioning alarm;
(4) And after the alarm base station receives the alarm information, arranging security personnel to perform rescue actions immediately.
In this embodiment, alarm base station and drowned detection bracelet all regularly carry out the storage update of data to open the self-checking function, and regularly charge.
The alarm base station receives alarm information of the drowning detection bracelet in real time, analyzes the received alarm information and displays the analyzed information; the specific process is as follows:
(1) After the alarm base station is started to work, hardware initialization is carried out;
(2) The alarm base station waits for receiving the alarm information of the drowning detection bracelet in real time;
(3) If the alarm base station receives the drowning bracelet alarm information, analyzing the information content;
(4) After the alarm base station analyzes the information, displaying a drowning bracelet for sending an alarm on a base station LCD display screen of the alarm base station by the analyzed information;
(5) The alarm base station sends alarm information to security personnel through a network; the security personnel receive alarm information from a computer end or a handheld mobile communication end, verify that drowning detection bracelet wearers whether have a drowning danger, and if so, perform emergency rescue.
The concrete work flow of drowning detection bracelet do:
(1) Open drowned detection bracelet: wearing the drowning detection bracelet on the wrist of a wearer, and automatically starting the drowning detection;
(2) Reading the measurement data: measuring the motion state of the wearer, transmitting the motion state to the MCU, and analyzing whether the current behavior of the wearer is in the motion state in water or not by the MCU according to the measured data;
(3) Drowning analysis of the movement state: if the MCU judges that the wearer is in a motion state at present, whether the current behavior is normal swimming or drowning is judged and analyzed continuously according to the posture sensor; if the wearer is in a drowned state, the MCU sends alarm information to the alarm base station through the Lora/Lorawan network communication module, and meanwhile, the flash lamp can carry out flash positioning alarm.
Claims (9)
1. A drowning detection system which characterized in that: the drowning detection device comprises an alarm base station and a drowning detection bracelet, wherein the alarm base station and the drowning detection bracelet are connected and transmit information through a wireless communication module;
the drowning detection bracelet comprises a main body structure and a drowning detection bracelet body, wherein the main body structure comprises a wireless communication module, an attitude sensor, an MCU (micro control unit), a flash memory, a screen, a water immersion module, a battery, a vibration module and a flash lamp;
the wireless communication module is a frequency band wireless communication frequency band lower than 1 GHz; the wireless communication module is used for the MCU to communicate with the alarm base station, sending alarm information and measurement data to the alarm base station and reminding security personnel of paying attention to the relevant dynamic information of the wearer at any moment;
the attitude sensor is used for acquiring the motion state information of the wearer;
the MCU processes and analyzes the acquired motion state information, and the data analysis result is that an alarm is given in time when the wearer is abnormal;
the flash memory is used for storing basic information and measurement data of a drowning detection bracelet wearer;
the screen is used for displaying the current time, receiving and displaying the motion state information processed and analyzed by the MCU;
the water immersion module is used for detecting whether the wearer is in water or not and verifying whether the wearer is in a drowning state or not;
the battery is used for outputting electric energy to the drowning detection bracelet;
the vibration module is used for increasing the accuracy of alarming, when the drowning detection bracelet judges that the wearer is in a drowning state, the drowning detection bracelet vibrates firstly to remind the wearer to confirm whether the wearer is in a dangerous state, and if the wearer is not in the dangerous state, the wearer can modify the alarming information manually at the first time and does not give an alarm; if the wearing person is in a dangerous state, the wearing person cannot modify alarm information manually, and the drowning detection bracelet can send out an alarm in time;
the flashlight is used for emitting flashing light and used as the positioning mark to feed back the position information of the wearer at the first time.
2. The drowning detection system of claim 1, characterized in that: the wireless communication module is a Lora/Lorawan network communication module.
3. The drowning detection system of claim 1, characterized in that: the attitude sensor collects the numerical values of the acceleration and the angular velocity of the wearer during movement and transmits the numerical values to the MCU.
4. The drowning detection system of claim 1, characterized in that: the MCU carries out judgment analysis through N preset judgment standard threshold values, and the following 1 condition is specifically met:
a. judging the values of the acceleration and the angular velocity during the movement, and requiring that the variable between every two values is more than a certain value and less than a certain value; meanwhile, when a certain time is met, the state is in a drowning state within a certain interval threshold value;
b. when the numerical values of the acceleration and the angular velocity fluctuate within a certain threshold interval and reach a certain length, the drowning state is judged.
5. A method of operating a drowning detection system according to claim 1, characterized in that: the drowning detection bracelet detects the state of a wearer in real time, and when the drowning detection bracelet judges that the wearer is in a drowning state, alarm information is sent to the alarm base station through the Lora/Lorawan network communication module; the method comprises the following specific steps:
(1) Sleeving the drowning detection bracelet on the wrist of a wearer, automatically starting to work, recording and transmitting and analyzing various data in real time, and preparing to alarm at any time;
(2) Judging whether the wearer is in water at present through the water immersion module, if so, acquiring data of human body movement through the attitude sensor, and judging and analyzing whether the wearer is in a normal swimming state or a drowning state according to the data;
(3) If the wearer is in a drowning state, the drowning detection bracelet firstly vibrates through the vibration module to confirm whether the wearer is in a dangerous state, alarm information is sent to an alarm base station through a Lora/Lorawan network communication module after the danger is confirmed, and meanwhile, a flash lamp can carry out flash positioning alarm;
(4) And after the alarm base station receives the alarm information, arranging security personnel to perform rescue actions.
6. The method of operation of a drowning detection system of claim 5, characterized in that: the alarm base station regularly stores and updates data, starts a self-checking function and regularly charges.
7. The method of operating a drowning detection system according to claim 5, characterized in that: drowning detect bracelet regularly carry out the storage of data and update to open self-checking function, and regularly charge.
8. The method of operation of a drowning detection system of claim 5, characterized in that: the alarm base station receives alarm information of the drowning detection bracelet in real time, analyzes the received alarm information and displays the analyzed information; the specific process is as follows:
(1) After the alarm base station is started to work, hardware initialization is carried out;
(2) The alarm base station waits for receiving the alarm information of the drowning detection bracelet in real time;
(3) If the alarm base station receives the drowning bracelet alarm information, analyzing the information content;
(4) After the alarm base station analyzes the information, displaying a drowning bracelet for sending an alarm on a base station LCD display screen of the alarm base station by the analyzed information;
(5) The alarm base station sends alarm information to security personnel through a network; the security personnel receive alarm information from a computer end or a handheld mobile communication end, verify that drowning detection bracelet wearers whether have a drowning danger, and if so, perform emergency rescue.
9. The method of operating a drowning detection system according to claim 5, characterized in that: the concrete work flow of drowning detection bracelet do:
(1) Open drowned detection bracelet: wearing the drowning detection bracelet on the wrist of a wearer, and automatically starting the drowning detection;
(2) Reading the measurement data: measuring the motion state of the wearer, transmitting the motion state to the MCU, and analyzing whether the current behavior of the wearer is in the motion state in water or not by the MCU according to the measured data;
(3) Drowning analysis of the movement state: if the MCU judges that the wearer is in a motion state at present, whether the current behavior is normal swimming or drowning is judged and analyzed continuously according to the attitude sensor; if the wearer is in a drowned state, the MCU sends alarm information to the alarm base station through the Lora/Lorawan network communication module, and meanwhile, the flash lamp can carry out flash positioning alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211057705.8A CN115457734A (en) | 2022-08-30 | 2022-08-30 | Drowning detection system and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211057705.8A CN115457734A (en) | 2022-08-30 | 2022-08-30 | Drowning detection system and working method thereof |
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| CN115457734A true CN115457734A (en) | 2022-12-09 |
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| CN202211057705.8A Withdrawn CN115457734A (en) | 2022-08-30 | 2022-08-30 | Drowning detection system and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879578A (en) * | 2023-06-21 | 2023-10-13 | 清华大学 | Road acceleration sensor, control method and control device thereof |
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2022
- 2022-08-30 CN CN202211057705.8A patent/CN115457734A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879578A (en) * | 2023-06-21 | 2023-10-13 | 清华大学 | Road acceleration sensor, control method and control device thereof |
| CN116879578B (en) * | 2023-06-21 | 2024-06-04 | 清华大学 | Road acceleration sensor, control method and control device thereof |
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Application publication date: 20221209 |