CN110807900A

CN110807900A - Floating device, safety system and detection method

Info

Publication number: CN110807900A
Application number: CN201910718530.2A
Authority: CN
Inventors: 彭程东; 王雯; 巴斯里奥斯·科洛
Original assignee: Shenzhen Zhongbao Yidian Technology Co Ltd
Current assignee: Shenzhen Zhongbao Yidian Technology Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-02-18

Abstract

The application discloses a floating device, a safety system and a detection method, wherein the floating device can float on the liquid surface in a target monitoring area, the floating device comprises a shell, and a control circuit, a sensor device and an alarm device which are contained in the shell, and the sensor device and the alarm device are connected to the control circuit; wherein the sensor means is for detecting a liquid ripple within the target monitoring area, the liquid ripple being any movement ripple caused by a target object falling into the liquid within the target monitoring area; the control circuit is used for analyzing the characteristics of the liquid ripples to judge whether a falling event caused by the fact that a target object falls into liquid in the target monitoring area occurs or not, and when the falling event is judged to occur, the alarm device is controlled to send out an alarm signal, so that the falling event can be effectively detected, the alarm signal can be sent out in time, and the safety of the target monitoring area is improved.

Description

Floating device, safety system and detection method

Technical Field

The embodiment of the application relates to the technical field of monitoring equipment, in particular to floating equipment, a safety system and a detection method.

Background

At present, under various environments such as residential swimming pools, commercial swimming pools, natural lakes and artificial lakes, particularly under unsupervised conditions, a water falling event caused by target objects such as people, animals or objects may occur, so that life risks or property losses are caused, and great potential safety hazards exist. How to effectively monitor the drowning event has become an important research topic in the industry.

Disclosure of Invention

The embodiment of the application provides a floating device, a safety system and a detection method, which can effectively detect a falling event and can send out an alarm signal in time.

The embodiment of the application provides a floating device which can float on the surface of liquid in a target monitoring area, and the floating device comprises a shell, and a control circuit, a sensor device and an alarm device which are contained in the shell, wherein the sensor device and the alarm device are connected to the control circuit;

wherein the sensor means is for detecting fluid ripples within the target monitoring area, the fluid ripples being any moving ripples caused by a target object falling into a fluid within the target monitoring area;

the control circuit is used for analyzing the characteristics of the liquid ripples to judge whether a falling event caused by the fact that a target object falls into the liquid in the target monitoring area occurs or not, and when the falling event is judged to occur, the control circuit controls the alarm device to send out an alarm signal.

The embodiment of the present application further provides a security system, where the security system includes a master control device and a floating device, the floating device is the floating device in any embodiment of the present application, and the master control device and the floating device establish a communication connection in a wireless manner to perform data exchange between devices;

when a falling event occurs, the floating equipment sends an alarm signal and sends falling data related to the falling event to the main control equipment, so that the main control equipment responds to a corresponding safety strategy according to the falling data and preset conditions.

The embodiment of the present application further provides a detection method, which is applied to the floating device according to any embodiment of the present application, and the method includes:

acquiring liquid ripples of a target monitoring area;

analyzing the characteristics of the liquid ripples to judge whether a falling event caused by the target object falling into the liquid in the target monitoring area occurs or not;

and sending out an alarm signal when the falling event is judged to occur.

The floating equipment provided by the embodiment of the application can float on the liquid surface in a target monitoring area, and comprises a shell, and a control circuit, a sensor device and an alarm device which are contained in the shell, wherein the sensor device and the alarm device are connected to the control circuit; wherein the sensor means is for detecting fluid ripples within the target monitoring area, the fluid ripples being any moving ripples caused by a target object falling into a fluid within the target monitoring area; the control circuit is used for analyzing the characteristics of the liquid ripples to judge whether a falling event caused by the fact that a target object falls into the liquid in the target monitoring area occurs or not, and when the falling event is judged to occur, the control circuit controls the alarm device to send out an alarm signal. The embodiment of the application can effectively detect the falling event and timely send out the alarm signal by detecting the liquid ripple of the target monitoring area and analyzing the characteristics of the liquid ripple so as to improve the safety of the target monitoring area.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of an application scenario of a floating device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a floating device according to an embodiment of the present application.

Fig. 3 is another schematic structural diagram of a floating device according to an embodiment of the present application.

Fig. 4 is another schematic structural diagram of a floating device according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a wireless front-end circuit according to an embodiment of the present disclosure.

Fig. 6 is a schematic diagram of another structure of a wireless front-end circuit according to an embodiment of the present disclosure.

Fig. 7 is another schematic structural diagram of a floating device according to an embodiment of the present application.

Fig. 8 is another schematic structural diagram of a floating device according to an embodiment of the present application.

Fig. 9 is another schematic structural diagram of a floating device according to an embodiment of the present application.

Fig. 10 is a perspective view of fig. 9.

Fig. 11 is another schematic structural diagram of a floating device according to an embodiment of the present application.

Fig. 12 is a system architecture diagram of a security system according to an embodiment of the present application.

Fig. 13 is a schematic flowchart of a detection method according to an embodiment of the present application.

Fig. 14 is another schematic flow chart of a detection method according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

At present, in various environments such as residential houses or commercial swimming pools, natural lakes and artificial lakes, particularly when the environment is used in an unsupervised situation, a water falling event caused by target objects such as people, animals or objects may occur, so that life risks or property losses are caused, and great potential safety hazards exist. Therefore, the embodiment of the application provides a floating device, a safety system and a detection method, and by detecting the liquid ripple of a target monitoring area and analyzing the characteristics of the liquid ripple, a drop event can be effectively detected and an alarm signal can be timely sent out, so that the safety of the target monitoring area is improved.

The detection method provided by the embodiment of the application can be realized in the floating device and can also be realized in a safety system comprising the floating device.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic view of an application scenario of a floating device according to an embodiment of the present disclosure, and fig. 2 is a schematic view of a structure of a floating device according to an embodiment of the present disclosure. The floating device 10 floats on the surface of the liquid 400 in the target monitoring area 200, and the floating device 10 can effectively detect the falling event caused by the target object 300 and can timely send out an alarm signal by detecting the liquid ripple of the target monitoring area 200 and analyzing the characteristics of the liquid ripple so as to improve the safety of the target monitoring area 200. The floating device 10 may also establish a communication connection with the main control device 20 through a wired network or a wireless network to perform data exchange between devices, for example, the drop data in the floating device 10 is sent to the main control device 20, so as to display the drop data related to the drop event on an application program or a user graphical interface in the main control device 20. The falling data may include a falling position, a falling object, sensor data, and the like, and then the main control device 20 sends a relevant operation instruction to the floating device according to the falling data. Wherein the floating device 10 and the master control device 20 form a security system 100.

The floating device 10 comprises a housing 11, and a control circuit 12, a sensor device 13 and an alarm device 14 which are accommodated in the housing 11, wherein the sensor device 13 and the alarm device 14 are connected to the control circuit 12;

the sensor device 13 is used for detecting the liquid ripple in the target monitoring area 200, which is any moving ripple caused by the target object 300 falling into the liquid 400 in the target monitoring area 200;

the control circuit 12 is configured to analyze characteristics of the liquid ripple to determine whether a drop event occurs when the target object 300 drops into the liquid 400 in the target monitoring area 200, and control the alarm device 14 to send an alarm signal when the drop event is determined to occur.

For example, the target monitoring area 200 may include monitoring areas such as residential swimming pools, commercial swimming pools, natural lakes, artificial lakes, water reservoirs, industrial wastewater treatment pools, chemical solution receiving pools, and the like.

For example, the liquid 400 in the target monitoring area 200 may include water, chemical solution, and the like.

For example, the target object 300 may include a human, an animal, and other objects.

In some embodiments, please refer to fig. 3, and fig. 3 is another schematic structural diagram of a floating device according to an embodiment of the present disclosure. The sensor means 13 comprises a multi-axis motion sensor 131, the multi-axis motion sensor 131 being adapted to detect changes in the earth's magnetic field and the spatial physical position of the floatation device 10 to detect liquid ripples within the target monitoring area 200.

For example, the multi-axis motion sensor 131 detects the wave form and frequency of the liquid in multiple axes, and during this detection, sensor data can be collected and processed through mathematical equations or algorithmic models to generate wave parameters associated with a fall event that can stimulate the surface of the liquid, such as water, to cause wave motion of the liquid in the target area. For example, the multi-axis motion sensor 131 may be a six-axis sensor or a nine-axis sensor. Taking a nine-axis sensor as an example, the nine-axis sensor may be composed of a three-axis accelerometer, a three-axis gyroscope and a three-axis magnetic field meter, specifically, absolute angular rate, acceleration and magnetic field strength of the floating device 10 in three directions are measured, especially, a change in a spatial physical position of the earth magnetic field and the floating device 10 is measured, and a specific algorithm is adopted to calculate a liquid ripple in the target monitoring area 200. By using the nine-axis sensor for data collection, the scene change in the target monitoring area 200 can be monitored in all directions and recorded in real time, so as to provide more comprehensive detection data for the sensor device 13.

In some embodiments, the sensor device 13 further comprises an environmental sensor 132, and the environmental sensor 132 is configured to detect an environmental parameter in the target monitoring area 200.

In some embodiments, the environmental parameter includes any one or more of a temperature of the liquid, a ph of the liquid, a turbidity of the liquid, a free residual chlorine content of the liquid, a urea content of the liquid, a bacterial count of the liquid, a wind speed at the surface of the liquid, and an air temperature.

For example, the environmental sensors 132 include temperature sensors for sensing liquid temperature and air temperature. For example, when the temperature sensor touches a person falling into water, the temperature sensor can also be used for detecting the body surface temperature of the person falling into water.

For example, the environmental sensor 132 includes a pH sensor for detecting the pH value of the liquid and obtaining the pH value of the liquid. For example, the ph of water in a swimming pool is detected, so that a user or a swimming pool manager can timely master the water quality condition, and the swimming pool can be cleaned or replaced conveniently.

For example, the environmental sensor 132 includes a TDS sensor for detecting the total solids content dissolved in the liquid, and thus the turbidity of the liquid. For example, conductive substances such as suspended matter, heavy metals, and conductive ions in the water are detected. For example, the total solids content of the water in the reservoir or pool is monitored so that the user or corresponding manager can timely assess the water quality for cleaning the reservoir or pool and for replacing the water in the reservoir or pool.

In some embodiments, the alarm device 14 includes a speaker 141 and an indicator light 142, and the control circuit 12 controls the speaker 141 to emit an alarm sound and the indicator light 142 to emit a warning light when it is determined that a fall event occurs.

For example, the speaker 141 and the indicator 142 may be controlled to emit different alarm sounds and/or different warning lights according to different target objects, so that others may preliminarily determine what the target object in a fall incident is specific according to different alarm sounds and/or different warning lights, so as to rescue in time. For example, when the target subject of the falling event is a human, the speaker 141 sounds a loud and prolonged sound, and the warning light is a flashing red light. For example, when the object of the falling event is an animal, the speaker 141 emits a short and repetitive beep sound, and the warning light is a flashing yellow light or a multi-color conversion light, and the animal is, for example, a bird, a cat, a dog, a cow, a sheep, a snake, or the like. For example, when the target object of the falling event is another object, the speaker 141 emits a sound that is different from the sound when the person and the animal fall, and the warning light is a blinking blue light or the like, for example, the other object is a mobile phone, a box, clothes, or the like. The above examples are not intended to limit the present application.

In some embodiments, the indicator lights 142 may also be used for illumination or location cues. The sensor device 13 may further include a photo-sensor reactor, and the photo-sensor reactor has a photo-sensor device thereon. The light sensation reactor can be connected with the indicator lamp 142, and when the brightness of the ambient light reaches a preset value, the indicator lamp 142 is not turned on, so that the energy-saving effect is achieved. When the brightness of the ambient light is lower than the preset value, the indicator lamp 142 is triggered to automatically start, so as to achieve the illumination effect. In addition, under the condition that the ambient light is dark, the indicator lamp 142 is lightened, so that the user can effectively find the floating device 10 to play a role in position prompt. For example, the indicator lamp 142 may be an LED lamp.

In some embodiments, the sensor device 13 may further include an acoustic sensor, an image sensor, or an infrared sensor, and the sensor device 13 may be used to detect the fall location and the distance between the fall location and the floating facility 10 of the fall event. For example, the falling position of the target object and the distance between the falling position and the floating device are calculated by transmitting an acoustic signal to the target object in the falling event through the acoustic sensor and then receiving an acoustic reflection signal reflected by the target object. For example, the falling position of the target object and the distance between the falling position and the floating device are calculated by analyzing a plurality of frames of images of the falling event captured by the image sensor. For example, infrared signals are transmitted to the target object in the falling event through an infrared sensor, and then infrared reflection signals reflected by the target object are received, so that the falling position of the target object and the distance between the falling position and the floating equipment are calculated.

The floating device 10 can detect irregular liquid ripples caused by displacement of the floating device in liquid such as water, and can collect environmental parameters such as pH value and temperature in the liquid so as to maintain the safety and convenient use of a target monitoring area such as a swimming pool. Also, a built-in loud speaker 141 is provided, which triggers the speaker 141 to emit an alarm signal when a fall event occurs. The floating device 10 can effectively avoid the occurrence of unexpected drowning events, and particularly, can effectively monitor the drowning events of the unknown people. Meanwhile, the floating device 10 can also effectively monitor events such as the falling of pet of owners into the swimming pool. Wild animals and the like which slide into the pond can also be monitored in time. When the floating device 10 collects environmental parameters, the owner can be reminded to maintain the swimming pool or the like according to the collected environmental parameters.

In some embodiments, please refer to fig. 4 to 6, fig. 4 is another structural schematic diagram of a floating device according to an embodiment of the present disclosure, fig. 5 is a structural schematic diagram of a wireless front-end circuit according to an embodiment of the present disclosure, and fig. 6 is another structural schematic diagram of a wireless front-end circuit according to an embodiment of the present disclosure. The floating device 10 further includes a communication device 15, the communication device 15 is connected to the control circuit 12, the communication device 15 further includes a communication circuit 151 and a communication interface 152 that are coupled, the communication circuit 151 is used for receiving and transmitting signals, and the communication interface 151 establishes a communication connection with the main control device 20 in a wired or wireless manner to perform data exchange between devices.

The communication interface 152 may include a wireless communication interface and a wired communication interface. The communication interface 152 establishes a communication connection with the main control device 20 through a wired or wireless manner to transmit the fall data in the floating device 10 to the main control device 20, so as to display the fall data related to the fall event on an application program or a user graphic interface in the main control device 20. The falling data may include a falling position, a falling object, sensor data, and the like, and then the main control device 20 sends a relevant operation instruction to the floating device according to the falling data.

For example, the master device 20 may include a smart wearable device, a smart phone, a computer, a cloud server, and the like.

In some embodiments, the communication circuit 151 further includes a wireless front-end circuit 1511, as shown in fig. 5 and 6, the wireless front-end circuit 1511 is configured to transceive wireless signals;

the control circuit 12 is configured to monitor the signal quality of the wireless signal, and when the signal quality of the wireless signal is lower than a preset threshold, control the wireless front-end circuit 1511 to increase the output power or dynamically adjust the impedance matching module 15111 in the wireless front-end circuit 1511, so as to improve the signal quality of the wireless signal.

The impedance matching module 15111 may be composed of a reactance component and a matching circuit, and when the signal quality of the wireless signal is lower than a preset threshold, the reactance component and/or the matching circuit in the impedance matching module 15111 may be dynamically adjusted to continuously monitor the signal quality of the wireless signal and dynamically adjust the attenuation signal. For example, as shown in fig. 5, the reactive components may include variable impedances C1, C2, and L1. For example, as shown in fig. 6, the reactive components may include variable impedances C3, L2, and L3.

In some embodiments, the wireless front-end circuitry 1511 further includes a radio frequency module 15112, a microcontroller 15113, and a plurality of radiating antennas 15114; the rf module 15112 is coupled to the plurality of radiation antennas 15114 through the microcontroller 15113;

the microcontroller 15113 is configured to obtain a measured signal strength received by each of the multiple radiation antennas 15114, and select a radiation antenna corresponding to a maximum measured signal strength among the measured signal strengths as a main set antenna of the wireless front-end circuit 1511.

Wherein, the rf module 15112 adjusts the connection relationship between the reactive component and the matching circuit in the impedance matching module 15111 by controlling the switch K1.

The wireless front-end circuit 1511 further includes a radio frequency switch 15115 and an amplifier 15116. The microcontroller 15113 controls the connection state of the rf switch 15115 to control the rf module 15112 to connect the radiation antenna with the highest signal strength among the plurality of radiation antennas 15114. The amplifier 15116 is used to amplify radio frequency signals.

In some embodiments, the plurality of radiation antennas 15114 are surface antennas composed of metal structures disposed on the surface of the housing 11, and the control circuit 12 is coupled to the metal structures in the surface antennas.

In some embodiments, the housing 11 is further provided with a control button for controlling the floating device 10 to be turned on, turned off or restarted according to a command input by a user.

For example, an LED lamp is also provided in the control button, and the LED lamp in the control button can be turned on when the floating device 10 is turned on.

In some embodiments, please refer to fig. 7, and fig. 7 is another structural schematic diagram of a floating device according to an embodiment of the present disclosure. The floating device 10 further comprises a driving means 16, wherein the driving means 16 is used for controlling the floating device 10 to move to a preset detection position and/or a falling position of the target object 300.

For example, the driving device 16 may include a motor assembly or a propeller assembly, the driving device 16 may control the floating device 10 to move to a preferred detection position and a falling position, and the floating device 10 can control the floating device 10 to respond through a control program on the main control device 20 such as a mobile phone APP under the condition of data exchange through establishing a communication connection with the main control device 20, so that the floating device 10 moves to a designated release position, a preset detection position, a falling position or a designated recovery position of the target object 300 and the like under the driving of the driving device 16, so as to control, release, position, recovery and the like of the floating device 10.

In some embodiments, the housing 11 is made of a highly buoyant material to allow the floatation device 10 to float on the surface of the liquid 400 within the target monitoring area 200;

when it is determined that the falling event is a person falling into water, the driving device 16 controls the floating device 10 to move to the falling position of the person falling into water, so that the person falling into water can float on the water surface by means of the floating device 10.

For example, when a fall event is detected in which a person falls into a water and a fall position of a man falling into a water is detected, the driving device 16 controls the floating device 10 to move to the place falling into the water, so that the man falling into the water can carry out self-rescue. For example, rescue materials such as food, life jackets, etc. may be carried on the floating device 10 so that when the floating device 10 is moved to a falling position of a person who falls into a water, the person who falls into the water may perform self-rescue by the rescue materials before the arrival of the rescue personnel.

In some embodiments, please refer to fig. 8, and fig. 8 is another structural schematic diagram of a floating device according to an embodiment of the present disclosure. The floating device 10 further comprises anti-theft means 17, said anti-theft means 17 being adapted to trigger an alarm signal and a localization tracking signal in case of a theft event.

For example, the anti-theft device 17 is equipped with an alarm and a locator, and when the floating equipment 10 is stolen, an alarm signal and a location tracking signal are triggered.

In some embodiments, the housing 11 compactly houses the functional components of the control circuit 12, the sensor device 13, the alarm device 14, and the like, within the housing 11, thereby providing good environmental protection for the functional components of the floating device 10. Wherein the functional components may also include components such as a communication device 15, a driving device 16, an anti-theft device 17, etc.

In some embodiments, the internal structure of the housing 11 may be a closed space such that water, air, dust, or the like cannot intrude therein. The unique design of the internal structure of the housing 11 may enable the interaction of waves with the outer shell of the housing 11 to create a mechanical rocking motion for identification by electronic systems in the internal structure.

In some embodiments, in order to improve the detection sensitivity of the sensor device 14, some sensors in the sensor device 14 may be disposed on the housing 11. For example, sensors such as a temperature sensor, a pH sensor, a TDS sensor, etc. are provided on the housing 11 so that the respective sensors can directly contact the liquid surface to improve detection sensitivity.

For example, a temperature sensor such as a temperature thermistor may be provided below the surface of the water, i.e. at the bottom of the housing, with the control circuit 12 in the internal structure being coupled to the temperature thermistor for continuous measurement of the water temperature.

Referring to fig. 9 and 10, fig. 9 is another schematic structural diagram of a floating device according to an embodiment of the present application, and fig. 10 is a perspective view of fig. 9. Figure 9 is a schematic view of the floating device in a structurally deployed state. The floating device 40 includes a housing 41, and a connector 42, an alarm device 43, a metal plate 44, a sealing member 45, a circuit board 46, a battery pack 47, a fastener 48, and the like, which are housed inside the housing 41.

The housing 41 includes a circular top cover 411, a machine housing 412 and a bottom cover 413.

In some embodiments, a control button 4111 is further disposed on the circular top cover 411, and the control button 4111 is configured to control the floating device 40 to be turned on, turned off, or restarted according to a command input by a user. The control button 4111 may be a touch button. For example, an LED lamp is further disposed in the control button 4111, and the LED lamp in the control button can be turned on when the floating device 10 is turned on.

In some embodiments, a port 4112 is further disposed on the circular top cover 411, and the port 4112 may be used for connecting a power supply or a master device, so as to facilitate charging the floating device 40 or data transmission. The port 4112 may be a waterproof charging port and/or a waterproof communication port.

Wherein connector 42 is for connecting port 4112.

Wherein the alarm device 43 is adapted to emit an alarm signal in the event of a fall event. The alarm device 43 may be composed of a speaker, for example, 4 speakers are provided, and the speakers are embedded in the slots of the metal plate 44. When a fall event occurs, the alarm device 43, which is composed of a speaker, is controlled to emit an alarm signal, for example, an alarm sound.

The sealing member 45 is a circular sealing member for preventing liquid such as water from penetrating into the inner structure of the housing 41, and has sealing and waterproof functions.

A circuit board 46, which is a printed circuit board, wherein the printed circuit board 46 is installed in the housing 41, the printed circuit board 46 may be a main board of the floating device 40, and one, two or more of functional components such as a sensor device, an alarm device 43, a driving device, a communication device, an anti-theft device, a microcontroller, a battery management system, and the like may be integrated on the printed circuit board 46.

Wherein, the sensor device can include multiaxis motion sensor and environmental sensor, and environmental sensor can include temperature sensor, pH sensor, TDS sensor etc. again. For example, the internal structure of the housing 41 may be a closed space such that water, air, dust, or the like cannot intrude therein. The unique design of the internal structure of the housing 41 may enable the interaction of waves with the outer shell of the housing 41 to create a mechanical rocking motion for identification by electronic systems in the internal structure. For example, in order to improve the detection sensitivity of the sensor device, some sensors in the sensor device may be disposed on the housing 41. For example, sensors such as a temperature sensor, a pH sensor, a TDS sensor, and the like are provided on the housing 41 so that the respective sensors can directly contact the liquid surface to improve detection sensitivity.

Wherein a battery assembly 47 is mounted in the housing 41, the battery assembly 47 being electrically connected to said printed circuit board 46 for providing power to the floating device 40.

The printed circuit board 46 may also be configured to detect an electric quantity value of the battery assembly 47, and report the detected electric quantity value to a main control device that establishes a communication connection with the floating device 40, so that a user may monitor the electric quantity value of the floating device 40 through control programs such as APP on the main control device.

The fastener 48 is used for fixedly receiving the battery pack 47.

Wherein the center of gravity of the battery assembly 47 and the center of gravity of the alarm device 43 are aligned along the central axis a, and the overall center of gravity of the floating device 40 is centered on the central axis a, so that the floating device 40 smoothly floats on the liquid surface.

Referring to fig. 11, fig. 11 is another schematic structural diagram of a floating device according to an embodiment of the present disclosure. Fig. 11 differs from fig. 10 in that: the bottom cover 413 is further provided with an opening 4131 and an opening cover 4132 cooperating with the opening 4131. The opening cover 4132 is provided over the opening 4131.

The opening 4132 may be covered on the opening 4131 in a plugging manner.

In some embodiments, the opening cover 4132 may be screwed to cover the opening 4131. For example, the outer circumference of the opening 4131 has external threads, and the inner circumference of the opening cover 4132 has internal threads corresponding to the external threads, so that the opening cover 4132 is coupled to the opening 4131 in a screw-coupled manner.

Wherein a portion of the sensors of the sensor device may be disposed within the opening 4131. For example, a sensor 49 such as a temperature sensor, a pH sensor, a TDS sensor, etc. is provided in the opening 4131, and when the floating device 40 is placed in a liquid such as water for normal use, the opening cover 4132 is removed so that the corresponding sensor can directly contact the liquid surface to improve detection sensitivity. For example, as shown, sensor a disposed within opening 4131 is a pH sensor.

Referring to fig. 12, fig. 12 is a system architecture diagram of a security system according to an embodiment of the present application. The embodiment of the present application further provides a security system 100, where the security system 100 includes a main control device 20 and a floating device 10, where the floating device 10 is the floating device according to any embodiment of the present application, and the main control device 20 and the floating device 10 establish a communication connection in a wireless manner to perform data exchange between devices;

when a fall event occurs, the floating device 10 sends an alarm signal and sends fall data related to the fall event to the main control device 20, so that the main control device 20 responds to a corresponding security policy according to the fall data and a preset condition.

In some embodiments, the fall data includes a fall location, a falling object, and sensor data.

In some embodiments, the security system 100 further comprises a peripheral device 30, wherein the peripheral device 30 wirelessly establishes a connection with the master device 20 and the floating device 10;

when a fall event occurs, the main control device 20 controls the peripheral device 30 to respond to a corresponding security policy.

In some embodiments, the peripheral device 30 comprises a rescue device 31, and when a fall event occurs, the main control device 20 controls the rescue device 31 to move to the fall position so as to carry out emergency treatment on the falling object, wherein the rescue device 31 is provided with a driver and is made of a strong buoyancy material.

In some embodiments, the peripheral device 30 includes a lighting device 32, and the master control device 20 controls the lighting device 32 to illuminate the drop location when a drop event occurs.

Referring to fig. 13 to 14, fig. 13 to 14 are schematic flow charts of a detection method according to an embodiment of the present disclosure. The detection method is applied to the floating device in any embodiment of the application, and comprises the following steps:

step 101, acquiring the liquid ripple of a target monitoring area.

For example, the liquid ripple within the target monitoring area 200, which is any moving ripple caused by the target object 300 falling into the liquid 400 within the target monitoring area 200, is detected by the sensor device 13.

For example, the sensor device 13 includes a multi-axis motion sensor 131, and the multi-axis motion sensor 131 is used for detecting the earth magnetic field and the change of the spatial physical position of the floating device 10 to detect the liquid ripple in the target monitoring area 200.

For example, the multi-axis motion sensor 131 detects the wave form and frequency of the liquid in multiple axes, and during this detection, sensor data can be collected and processed through mathematical equations or algorithmic models to generate wave parameters associated with a fall event that can stimulate the surface of the liquid, such as water, to cause wave motion of the liquid in the target area. For example, the multi-axis motion sensor 131 may be a six-axis sensor or a nine-axis sensor. Taking a nine-axis sensor as an example, the nine-axis sensor may be composed of a three-axis accelerometer, a three-axis gyroscope and a three-axis magnetic field meter, specifically, absolute angular rate, acceleration and magnetic field strength of the floating device 10 in three directions are measured, especially, a change in a spatial physical position of the earth magnetic field and the floating device 10 is measured, and a specific algorithm is adopted to calculate a liquid ripple in the target monitoring area 200.

And 102, analyzing the characteristics of the liquid ripples to judge whether a falling event caused by the target object falling into the liquid in the target monitoring area occurs or not.

In some embodiments, as shown in fig. 14, step 102 may be implemented by steps 1021 to 1023, specifically:

step 1021, judging whether the liquid ripple is regularly changed; if yes, go to step 1022; if not, go to step 1023.

For example, whether the wave is a falling event is determined by detecting whether the wave changes regularly, if the wave changes regularly corresponding to swimming, and the wave changes regularly, other parameters need to be further acquired to determine whether the wave is a falling event. Specifically, after the liquid ripple is obtained, whether the liquid ripple is regularly changed or not is judged; if yes, it indicates that the target object is performing regular movements such as swimming, then step 1022 is executed; if not, it indicates that there is a possible fall event, then go to step 1023.

At step 1022, it is determined as a non-falling event.

For example, if the liquid ripple changes regularly, it indicates that the target object is performing regular motion such as swimming.

And 1023, inputting the characteristics of the liquid ripples into a trained detection model for detection so as to judge whether a falling event caused by the fact that the target object falls into the liquid in the target monitoring area occurs.

If the liquid ripples are irregularly changed, the falling event possibly exists, and machine learning can be performed to improve the accuracy of the detection of the falling event. Firstly, a fall incident database is established for storing training samples marked as fall incidents, a detection model is established by training the marked training samples and learning fall characteristics, and then the trained detection model is used for analyzing data to be detected to judge whether the data are the fall incidents or not. And the data to be detected is the characteristics of the liquid ripples collected currently. The fall incident database can be stored in a memory of the floating device, or in a main control device connected with the floating device or a cloud server, and fall data acquired each time can be stored in the fall incident database to serve as a basis for next data analysis.

And 103, sending out an alarm signal when the falling event is judged to occur.

For example, the alarm device 14 for emitting an alarm signal includes a speaker 141 and an indicator lamp 142, and when it is determined that a fall event occurs, the control circuit 12 may control the speaker 141 to emit an alarm sound and the indicator lamp 142 to emit a warning light.

All the above technical solutions can be combined arbitrarily to form the optional embodiments of the present application, and are not described herein again.

The floating device, the security system and the detection method provided by the embodiment of the present application are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A floating device capable of floating on the surface of liquid in a target monitoring area, which is characterized by comprising a shell, a control circuit, a sensor device and an alarm device, wherein the control circuit, the sensor device and the alarm device are accommodated in the shell, and the sensor device and the alarm device are connected to the control circuit;

2. The floatation device of claim 1, wherein the sensor arrangement includes a multi-axis motion sensor for detecting changes in the Earth's magnetic field and the spatial physical position of the floatation device to detect liquid ripples within the target monitoring area.

3. The floating device of claim 2, wherein the sensor arrangement further comprises an environmental sensor for detecting an environmental parameter within the target monitoring area.

4. The floating installation according to claim 3, wherein the environmental parameters include any one or more of liquid temperature, liquid pH, liquid turbidity, free residual chlorine content of the liquid, urea content of the liquid, total bacterial content of the liquid, wind speed at the liquid surface, air temperature.

5. The floatation device of claim 1, wherein the alarm means includes a speaker and an indicator light, and the control circuit controls the speaker to emit an alarm sound and the indicator light to emit a warning light when it is determined that a drop event has occurred.

6. The floating device according to claim 1, wherein the floating device further comprises a communication device, the communication device is connected to the control circuit, the communication device further comprises a communication circuit and a communication interface, the communication circuit is coupled to receive and transmit signals, and the communication interface establishes a communication connection with the main control device in a wired or wireless manner to perform data exchange between devices.

7. The floating device of claim 6, wherein the communication circuit further comprises a wireless front-end circuit for transceiving wireless signals;

the control circuit is used for monitoring the signal quality of the wireless signals, and when the signal quality of the wireless signals is lower than a preset threshold value, the control circuit controls the wireless front-end circuit to increase the output power or dynamically adjusts an impedance matching module in the wireless front-end circuit so as to improve the signal quality of the wireless signals.

8. The floating device of claim 7, wherein the wireless front-end circuit further comprises a radio frequency module, a microcontroller, and a plurality of radiating antennas; the radio frequency module is coupled and connected with the plurality of radiation antennas through the microcontroller respectively;

the microcontroller is configured to obtain a measured signal strength received by each of the plurality of radiation antennas, and select a radiation antenna corresponding to a maximum measured signal strength among the measured signal strengths as a main set antenna of the wireless front-end circuit.

9. The floating device of claim 8, wherein the plurality of radiating antennas are surface antennas comprised of metal structures disposed on the surface of the housing, the control circuit coupled to the metal structures in the surface antennas.

10. The floating device of claim 1, wherein the housing further comprises a control button for controlling the floating device to be turned on, turned off, or restarted according to a command input by a user.

11. The floatation device of claim 1, further comprising a drive arrangement for controlling movement of the floatation device to a preset detection position and/or a fall position of the target object.

12. The floatation device of claim 11, wherein the housing is made of a highly buoyant material to cause the floatation device to float on a surface of liquid within a target monitoring area;

when the falling event is judged to be people falling into water, the driving device controls the floating device to move to the falling position of the people falling into water, so that the people falling into water can float on the water surface by means of the floating device.

13. The floating device as recited in claim 1 further comprising anti-theft means for triggering an alarm signal and a location tracking signal in the event of a theft event.

14. A security system, characterized in that the security system comprises a master device and a floating device, the floating device is the floating device according to any one of claims 1 to 13, the master device and the floating device establish a communication connection in a wireless manner to perform data exchange between the devices;

15. A safety system according to claim 14, wherein the fall data includes a fall location, a falling object, and sensor data.

16. The security system of claim 15, further comprising a peripheral device that wirelessly establishes a connection with the master device and the floating device;

and when a falling event occurs, the main control equipment controls the peripheral equipment to respond to the corresponding security policy.

17. The safety system of claim 16, wherein the peripheral device comprises a rescue apparatus, the master control device controlling the rescue apparatus to move to the fall position to facilitate emergency treatment of the falling object in the event of a fall, wherein the rescue apparatus has a driver and is made of a highly buoyant material.

18. The security system of claim 16, wherein the peripheral device comprises a lighting device, and wherein the master device controls the lighting device to illuminate the fall location when a fall event occurs.

19. A detection method, applied to a floating device according to any one of claims 1 to 13, comprising:

acquiring liquid ripples of a target monitoring area;

and sending out an alarm signal when the falling event is judged to occur.

20. The detection method of claim 19, wherein said analyzing characteristics of said fluid ripples to determine whether a drop event has occurred in a fluid within said target monitoring area caused by a target object falling, comprises:

judging whether the liquid ripple is regularly changed or not;

and if the liquid ripple changes irregularly, inputting the characteristics of the liquid ripple into a trained detection model for detection so as to judge whether a falling event caused by the target object falling into the liquid in the target monitoring area occurs or not.