CN109785583B - Drowning alarm system - Google Patents
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- CN109785583B CN109785583B CN201910094045.2A CN201910094045A CN109785583B CN 109785583 B CN109785583 B CN 109785583B CN 201910094045 A CN201910094045 A CN 201910094045A CN 109785583 B CN109785583 B CN 109785583B
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Abstract
The invention discloses a drowning alarm system, which comprises: wearable drowning alarm, a plurality of regional alarm and the safety monitoring equipment that are suitable for to set up on the swimming pool surface of water. The area alarm and the safety monitoring equipment are in communication connection with the drowning alarm. Safety monitoring equipment includes a wireless transceiver adapted to be disposed above the pool for transmitting wireless signals at a predetermined frequency. And the drowning alarm is used for monitoring a wireless signal with a preset frequency transmitted by the wireless transceiver and transmitting an alarm signal outwards when the wireless signal is not monitored for a preset time. And the area alarm is used for receiving the alarm signal sent by the drowning alarm, sending an alarm and generating alarm information according to the alarm signal, and sending the alarm information to the safety monitoring equipment. The invention can improve the accuracy and reliability of the alarm mechanism and can realize the multi-level alarm.
Description
Technical Field
The invention relates to the technical field of lifesaving application, in particular to a drowning alarm.
Background
Statistics show that drowning death becomes the first killer of abnormal death of children of 3-23 years old, and the drowning death accident is caused to happen frequently even in a standard swimming pool in a city. At present, drowning monitoring of swimming personnel in China mostly depends on rescue personnel, is determined through visual observation, and has no scientific equipment and means to provide timely and effective drowning information for the rescue personnel. If the drowning person is not discovered or rescued in time, the drowning death accident may occur, so the drowning problem has become a very important safety problem. In the swimming pool environment with high temperature and high humidity, because the devices are more and the circuit is complex, the equipment has larger failure probability compared with other operation environments, and the reliability of the whole set of equipment is reduced. The existing drowning alarm device has the disadvantages that equipment is interdependent, is absent, any equipment fails, the whole system loses due alarm function immediately, the position of a drowning person cannot be determined, and precious rescue time is wasted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a drowning alarm system, wherein the whole system realizes multi-level alarm, each level provides many-to-many concurrent alarm capability, the whole system is not crashed due to the fault of individual equipment, and the accuracy, reliability and practicability of an alarm mechanism can be improved.
In order to achieve the above object, the present invention provides a drowning alarm system, including:
the system comprises a wearable drowning alarm, a plurality of area alarms suitable for being arranged on the water surface of a swimming pool and safety monitoring equipment suitable for being arranged above the swimming pool; the area alarm and the safety monitoring equipment are in communication connection with the drowning alarm;
the drowning alarm is used for monitoring a wireless safety signal with a first preset frequency transmitted by a wireless transceiver of the safety monitoring equipment on the water surface, and transmitting an alarm signal to the water surface through a plurality of propagation media when the wireless safety signal is not monitored for a preset time so as to drive a plurality of regional alarms within a signal coverage range, thereby forming a one-to-many diffusion alarm effect;
the area alarm is used for receiving an alarm signal sent by the drowning alarm underwater, generating alarm information, sending the alarm information to the safety monitoring equipment and sending an area sound-light alarm according to the alarm signal; wherein, a plurality of the regional alarms in the swimming pool can receive alarm signals sent by the drowning alarm within a preset range to form concurrent alarms;
the safety monitoring equipment is provided with a wireless transceiver which is deployed above the swimming pool, and the wireless transceiver uninterruptedly transmits a wireless safety signal with a first preset frequency as a safety identification signal to be received by the drowning alarm; the wireless transceiver is also used for receiving alarm information transmitted by the area alarm and sending an alarm according to the alarm information.
Preferably, the plurality of propagation media includes an ultrasonic medium and a radio wave medium; the drowning alarm comprises a first wireless communication module, an ultrasonic transmitter, a radio wave transmitter, a first-level alarm device and a first main control chip; the first wireless communication module, the ultrasonic transmitter, the radio wave transmitter and the first-level alarm device are respectively and electrically connected with the first main control chip;
the first wireless communication module is used for monitoring wireless safety signals transmitted by the wireless transceiver;
the first main control chip is used for judging that the first wireless communication module is in an underwater time overtime state when the first wireless communication module does not monitor the wireless safety signal for the preset time, switching the current working mode from a safety state to a dangerous state, and controlling the ultrasonic wave emitter to emit an ultrasonic alarm signal and controlling the radio wave emitter to emit a wireless alarm signal when the first main control chip enters the dangerous state;
the ultrasonic transmitter is controlled by the first main control chip to transmit ultrasonic alarm signals with second preset frequency, and the ultrasonic alarm signals are received by the area alarms on the water surface and serve as first trigger signals of first-level alarms;
the radio wave transmitter is controlled by the first main control chip to transmit a radio alarm signal with a third preset frequency, the radio wave signal carries an address code of a drowning alarm, and a plurality of regional alarms on a water supply surface receive the radio wave signal as a second trigger signal of a first-level alarm;
the first-level alarm device is controlled by the first main control chip to start audible and visible sound and light alarm to serve as a first-level alarm.
Preferably, the area alarm suitable for being distributed on the water surface of the swimming pool according to area division comprises the second wireless communication module, an ultrasonic receiver, a radio receiver, a second-level alarm device and a second main control chip; the second wireless communication module, the ultrasonic receiver, the radio receiver and the second-level alarm device are respectively and electrically connected with the second main control chip;
the ultrasonic receiver is used for receiving an ultrasonic signal sent by the drowning alarm and sending the judged state to the second main control chip when the ultrasonic signal is judged to be a first-stage ultrasonic alarm signal sent in a dangerous state;
the radio receiver is used for receiving the radio wave signal sent by the drowning alarm, and sending the address code of the drowning alarm to the second main control chip when the address code of the drowning alarm is acquired from the radio alarm signal when the radio wave signal is judged to be a first-level radio alarm signal sent in a dangerous state;
the second main control chip is used for recording the receiving time of the ultrasonic alarm signal when receiving the first-stage ultrasonic alarm signal, controlling the second-stage alarm device and sending out corresponding sound and light alarm;
the second main control chip is also used for recording the receiving time of the wireless alarm signal when the first-stage wireless alarm signal is received and the address code of the drowning alarm is obtained, controlling the second-stage alarm device and sending out the sound and light alarm corresponding to the wireless alarm; simultaneously starting a second wireless communication module, and transmitting alarm information to wireless transceivers of a plurality of safety monitoring equipment above the swimming pool by the alarm event; the alarm information transmitted by each area alarm is received by the wireless transceivers of the plurality of safety monitoring devices, so that a second-stage diffusion alarm is formed;
the second wireless communication module is controlled by the second main control chip and transmits alarm information to wireless transceivers of a plurality of safety monitoring devices deployed above the swimming pool;
the alarm information content comprises wireless alarm signal receiving time, ultrasonic alarm signal receiving time, a drowning alarm address code and a regional alarm address code;
and the second-level alarm device is controlled by the second main control chip to send out sound and light alarm to serve as a second-level alarm.
Preferably, in the acousto-optic alarm as the second-level alarm, the light is a flashing light and flashes at an agreed frequency rhythm.
Preferably, the safety monitoring device comprises a third-level alarm device and a third main control chip, wherein the third-level alarm device is electrically connected with the third main control chip;
the third main control chip is connected with the wireless transceiver, is always in a state of sending a safety signal at a preset frequency, and sends a safety signal identifier for the drowning alarm to receive;
the third main control chip is also connected with the wireless transceiver, is always in a state of waiting for receiving alarm information at a preset frequency, and receives the alarm information from any one of the area alarms;
and the third-level alarm device is controlled by the third main control chip and gives out sound and light alarm to serve as a third-level alarm when receiving an alarm instruction sent by the third main control chip.
Preferably, the number of the safety monitoring devices is multiple; the single regional alarm sends out a wireless signal in a coverage range, can drive a plurality of safety monitoring equipment, respectively starts a third-level alarm to form a diffusion effect, and controls the third-level alarm device to send out sound and light of a system level and large-screen graphical alarm according to the alarm information.
Preferably, the safety monitoring device further comprises a positioning module, a communication module and a decoding module; the positioning module, the communication module and the decoding module are respectively and electrically connected with the third main control chip;
the positioning module is used for acquiring the address code of the drowning alarm and the address codes of the plurality of area alarms received by the third main control chip, and calculating the coordinate value of the drowning alarm relative to the swimming pool according to the wireless alarm signal receiving time and the ultrasonic alarm signal receiving time reported by each area alarm;
the decoding module is used for the third main control chip to inquire and translate the address code of the drowning alarm into the name of the drowning person, combine the positioning coordinate values to form alarm text information and send the alarm text information to a large screen for display through the communication module;
and the communication module is used for sending the alarm text information to more than two associated user terminals by the third main control chip.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the invention takes the wireless signal continuous disappearance time exceeding the preset time as one of drowning judgment conditions, and increases the drowning condition judgment conditions.
2. The invention has a multi-level independent alarm mechanism, including drowning alarm, area alarm and safety monitoring equipment, which can alarm independently, thus ensuring quick and effective alarm.
3. The invention can drive the alarm in the area to give an alarm against drowning events, and the alarms in the adjacent areas give alarms in parallel, thus showing that the whole system runs reliably and strengthening the audio-visual effect of alarm;
4. the invention adopts a multi-to-multi step-by-step diffusion alarm strategy to realize a multi-level alarm amplification effect, thereby objectively further improving the reliability of system operation and improving the monitoring and rescue force on drowning events.
5. The invention can resist high temperature and high humidity environment, each area alarm operates independently, and does not interfere with each other on the horizontal plane of the swimming pool, thus being stable and reliable, and the whole alarm effect is not influenced when any one area alarm fails.
Drawings
Fig. 1 is a schematic structural diagram of a drowning alarm system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a drowning alarm provided by an embodiment of the invention.
Fig. 3 is a schematic structural diagram of an area alarm provided in an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a safety monitoring device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 4, an embodiment of the invention provides a drowning alarm system, including:
a wearable drowning alarm 2, a plurality of area alarms 3 suitable for being arranged on the water surface of the swimming pool and a safety monitoring device 1 suitable for being arranged above the swimming pool; the region alarm 3 is in communication connection with the safety monitoring device 1 and the drowning alarm 1. Wherein:
In the present embodiment, considering that the wireless signal has a fast attenuation speed in water, the present embodiment preferably adopts a wireless transceiver 11 with a frequency higher than 2.4GHz as a communication base station, for example, the wireless transceiver 11 is an LC 12S. Of course, it is understood that in other embodiments of the present invention, the wireless transceiver 11 may also be configured correspondingly according to actual needs, for example, a wireless WiFi AP router, a ZigBee base station, a bluetooth base station, a LoRa base station, etc. may also be adopted, and the specific model thereof may be configured according to actual needs, and the present invention is not limited specifically.
In this embodiment, in order to avoid the problem that a single propagation medium is unstable or fails to give an alarm normally, the drowning alarm 2 of this embodiment adopts multiple propagation media to transmit an alarm signal to the water surface, so as to increase the reliability of the alarm.
For example, the various propagation media include ultrasonic media, radio wave media, visible light media, and audible sound media.
In this case, the drowning alarm 2 includes a first wireless communication module 21, an ultrasonic transmitter 23, a radio wave transmitter 22, a first-stage alarm device 24, and a first main control chip 20; the first wireless communication module 21 and the first main control chip 20 are connected by a UART; the ultrasonic transmitter 22 is connected with the first main control chip 20 by PIO; the radio wave emitter 23 is connected with the first main control chip 20 by PIO; the first-level alarm device 24 is connected with the first main control chip 20 by PIO.
In this embodiment, the first main control chip 20 is an STM8S103K3T6C, and it should be noted that the first main control chip 20 may also be a main control chip of another model, which may be specifically set according to actual needs, and the present invention is not limited specifically herein.
In this embodiment, the first wireless communication module 21 is an LC12S, and the wireless frequency is 2.4 GHz; the ultrasonic emitter 23 is YH-82, and the ultrasonic frequency is 40 KHz; the radio wave transmitter 22 is H34C-315, and the radio frequency is 315 KHz.
In a specific operation process, the first wireless communication module 21 can receive a wireless security signal transmitted by the wireless transceiver 11 under a normal condition, in which case, it indicates that the user is safe. However, when the first wireless communication module 21 fails to receive the wireless security signal for a predetermined time (the frequency of the wireless electromagnetic wave is higher because the attenuation of the wireless electromagnetic wave propagating in water is greater than that of the wireless electromagnetic wave propagating in air, and the attenuation is faster, therefore, when the user is in a deeper water, the penetration distance of the wireless signal in water is limited, and the first wireless communication module 21 cannot detect the wireless security signal transmitted by the wireless transceiver 11), it indicates that the user may drown, and the drown alarm 2 needs to send an alarm signal. When a person drowns, a large amount of water, silt and sundries are poured into the lung of the person falling into water through the mouth and the nose, so that respiratory tract obstruction, oxygen deficiency and coma can be caused until the person dies. The process is very rapid in development, and the death is caused by stopping breathing in 2-4 minutes, so that the drowning person is rescued for seconds. In the present embodiment, the signal disappearance duration is preferably 15 seconds. Of course, it is understood that in other embodiments of the present invention, the signal lasting disappearance time may also be set according to actual situations, for example, 10 seconds, 17 seconds, 20 seconds, etc., or even longer, and the present invention is not limited in particular herein.
In this embodiment, when the first main control chip 20 determines that the first wireless communication module 21 does not monitor and receive the wireless safety signal for a predetermined time, it determines that the first main control chip is in an underwater time out state, switches the current working mode from a safety state to a dangerous state, and when the first main control chip enters the dangerous state, the first main control chip 20 controls the ultrasonic emitter 23 to send out an ultrasonic alarm signal and controls the radio wave emitter 22 to send out a wireless alarm signal, wherein the wireless alarm signal carries an address code of a drowning alarm.
Furthermore, the first main control chip 20 controls the first-level alarm device 24 to start an alarm with audible and visible appointed frequency sound and appointed wavelength light as a first-level alarm, so that the alarm can arouse the alertness of other nearby swimmers, timely discover the drowning person, and give a rescue aid or inform related life-saving personnel of taking a rescue at the first time.
In this embodiment, the first wireless communication module 21 may be an LC 12S. Of course, it should be noted that the first wireless communication module 21 may also be a wireless communication module of other types, which may be specifically configured according to actual needs, but needs to be capable of matching with the wireless transceiver 11. Certainly, it should be noted that the wireless communication modules such as the ZigBee module, the bluetooth module, the WIFI module, and the mobile communication module are also within the protection scope of the present invention, and are not described herein again.
It should be noted that the drowning alarm 2 may be mounted on a swimming cap, goggles, or a swimsuit, or may be worn on the swimmer as a wearable device, and the specific fixing manner and the fixing position of the drowning alarm are not limited in this invention.
The area alarm 3 is used for receiving an alarm signal sent by the drowning alarm 2 underwater, generating alarm information, sending the alarm information to the safety monitoring equipment 1, and sending an area sound-light alarm according to the alarm signal; wherein, a plurality of the area alarms 3 in the swimming pool can receive the alarm signals sent by the drowning alarm 2 in the preset range to form the concurrent alarm.
Referring to fig. 3, in the present embodiment, the area alarm 3 includes: a second-level alarm device 31, an ultrasonic receiver 34, a radio receiver 32, a second wireless communication module 33 and a second main control chip 30; the second-level alarm device 31 is connected with the second main control chip 30 through PIO, the ultrasonic receiver 34 is connected with the second main control chip 30 through PIO, the radio receiver 32 is connected with the second main control chip 30 through PIO, and the second wireless communication module 33 is connected with the second main control chip 30 through UART.
In this embodiment, the second main control chip 30 is stm32f103rct6, and it should be noted that the second main control chip 30 may also be a main control chip of another type, which may be specifically set according to actual needs, and the present invention is not limited specifically herein.
The ultrasonic receiver 34 receives the ultrasonic signal sent by the drowning alarm 2, and sends the judgment state to the second main control chip 30 when judging that the ultrasonic signal is the first-level ultrasonic alarm signal sent in the dangerous state. Similarly, the radio wave receiver 32 receives the radio wave signal sent by the drowning alarm 2, and judges that the radio wave signal is the first-level wireless alarm signal sent under the dangerous condition, and then the address code of the drowning alarm is obtained from the wireless alarm signal, and then the address code of the drowning alarm is sent to the second main control chip 30.
When the second main control chip 30 receives the first-stage ultrasonic alarm signal, it records the receiving time of the ultrasonic signal, and controls the second-stage alarm device 31 to send out a corresponding sound-light alarm.
The second main control chip 30 is further configured to record the receiving time of the wireless alarm signal when receiving the first-level wireless alarm signal and obtaining the address code of the drowning alarm 2, and control the second-level alarm device 31 to send out a corresponding sound-light alarm. Meanwhile, the second main control chip 30 is also used for recording the received alarm data and editing the alarm data into an alarm information frame (the alarm frame structure is: "drowning alarm 2 address code + area alarm 3 address code + wireless alarm signal receiving time + ultrasonic alarm signal receiving time") to transmit alarm information to the wireless transceivers 11 of the plurality of safety monitoring devices 1 above the swimming pool; since the alarm information transmitted by each area alarm 3 is received by the wireless transceivers 11 of a plurality of safety monitoring devices 1, a second-level diffusion is formed.
In the present embodiment, the second-stage warning device 31 includes a first warning lamp (not shown), a second warning lamp (not shown), and a buzzer (not shown). When receiving the ultrasonic alarm signal of the ultrasonic receiver 34, the second main control chip 30 controls the first alarm lamp to emit light and the buzzer to emit an alarm whistle; when receiving the wireless alarm signal of the radio receiver 32, the buzzer controls the second alarm lamp to emit light and the buzzer to emit an alarm whistle.
In this embodiment, the first warning light may be a yellow warning light or a warning light of another color, and the second warning light may be a red warning light or a warning light of another color. In addition, the buzzer may also be an alarm, an electric bell, an alarm bell or other devices that can alarm and remind, and the present invention is not limited specifically. For convenience of description, the first warning light is a yellow warning light, and the second warning light is a red warning light.
In this embodiment, considering that the transmission distance of the radio wave signal is shorter than that of the ultrasonic wave signal, in this embodiment, the radio receiver 32 is used to receive the alarm signal of near-drowning, 315 mega frequency is selected, and other radio frequency signals such as 433MHz, 1.2GHz, 2.4GHz, etc. can be also applied here, and these are within the protection scope of the present invention, and will not be described again here. Of course, it should be noted that, in this embodiment, the radio receiver 32 may be LR35A, which receives a 315MHz radio wave signal, and the radio receiver 32 may also select a radio receiver of a corresponding model, such as KYL-324, according to practical situations, and the present invention is not limited in particular.
In this embodiment, considering that the ultrasonic signal has a long transmission distance in water, the receiving range is relatively large, and therefore, in this embodiment, the ultrasonic frequency is selected to be 40KHz, and other frequencies such as 28KHz and 60KHz can also be applied here, which are within the protection scope of the present invention and will not be described herein again. In this embodiment, the ultrasonic receiver 34 may be HC-SR04P, and it should be noted that, in this embodiment, the ultrasonic receiver 34 may also select the corresponding type of ultrasonic receiver 34 according to the actual situation, and the invention is not limited in this respect.
In this embodiment, the second wireless communication module 33 may be a module with 433MHz, 315MHz, WIFI, ZigBee, bluetooth, Lora, NB-IOT, 2G/3G/4G/5G mobile communication module, etc., and the present invention is not limited specifically herein.
In this embodiment, the shape of the housing of the area alarm 3 may be spherical, cylindrical or other shapes, which are within the protection scope of the present invention, and the description of the present invention is omitted. In this embodiment, the area alarm 3 is designed according to the floating principle, for example, the center of gravity can be designed according to the principle that a boat floats on the water surface or a hollow gourd like a tumbler, and the center of gravity can be designed under the water surface and simultaneously floats on the water surface, so that the area alarm 3 always floats on the water surface of the swimming pool. Of course, it should be noted that the area alarm 3 may also be designed to be wall-mounted on the water surface of the pool wall. Every regional alarm 3 all is the independent operation, and mutual noninterference is reliable and stable on the swimming pool horizontal plane, and any one regional alarm 3 breaks down and does not influence whole warning. Moreover, in this example, the radio receiver 32 is designed to effectively receive radio signals at a distance of at least 7.5 meters, and other radio transmission distances can be configured according to the size and shape of the actual swimming pool; the ultrasonic receiver 34 can receive ultrasonic signals with a radius of at least 16 meters, and can be configured with other ultrasonic transmission distances according to the size and shape of the actual swimming pool. Specifically, the area alarm 3 is suitable for being placed on the water surface of the swimming pool, and can be arranged on the swimming pool at a preset row spacing and a preset column spacing, and of course, the area alarm can also be placed on the water surface of the swimming pool according to the actual shape of the swimming pool.
The drowning alarm 2 swimmer is worn and is in a plurality of between the regional alarm 3, and every regional alarm 3 independently works, each other does not influence. The area alarm 3 is normally in a silent state. However, when the radio wave receiver 32 of the area alarm 3 receives the radio wave signal transmitted from the radio wave transmitter 22 of the drowning alarm 2, the second main control chip 30 can control the second alarm lamp to turn on the red alarm lamp and control the buzzer to sound an alarm. A plurality of regional alarms in the region with the radius of 7.5 meters of the swimming pool can flicker with red lights periodically at the same time, and a buzzer sounds, so that a lifeguard of the swimming pool can easily distinguish drowning points and can rescue in time. If the ultrasonic receiver 34 receives the ultrasonic signal sent by the ultrasonic transmitter 23 of the drowning alarm 2, the second main control chip 30 controls the first alarm lamp to light the yellow alarm lamp and controls the buzzer to sound for alarm. A plurality of regional alarms in the area with the radius of 16 meters of the swimming pool can flicker with the yellow light periodically at the same time, and the buzzer rings, so that the lifeguard of the swimming pool can easily distinguish drowned areas, rescue in time and have a multi-layer independent alarm mechanism.
In this embodiment, the security monitoring apparatus 1 includes: a third-level alarm device 12, a wireless transceiver 11 and a third main control chip 10; the third-level alarm device 12 is connected with the third main control chip 10 by PIO, and the wireless transceiver 11 is connected with the third main control chip 10 by UART.
The number of the safety monitoring devices 1 is multiple; the single regional alarm 3 sends out a wireless signal in a coverage range and can drive a plurality of safety monitoring devices 1, so that each safety monitoring device 1 can start a third-level alarm to form a diffusion effect, and the third-level alarm device is controlled to send out sound and light of a system level and large-screen graphical alarms according to the alarm information.
In this embodiment, the third main control chip 10 is stm32f103rct6, and it should be noted that the third main control chip 10 may also be a main control chip of another type, which may be specifically set according to actual needs, and the present invention is not limited specifically herein.
Further, referring to fig. 4, in the present embodiment, the monitoring security device 1 further includes a decoding module 15, a communication module 13, a positioning module 14, and a third main control chip 10. The decoding module 15 and the third main control chip 10 are connected by UART, the communication module 13 and the third main control chip 10 are connected by UART, and the positioning module 14 and the third main control chip 10 are connected by UART, wherein:
the positioning module 14 is used for acquiring the address code of the drowning alarm 1 and the address code of the area alarm 3 received by the third main control chip 10, and calculating the coordinate value of the drowning alarm relative to the swimming pool according to the wireless alarm signal receiving time and the ultrasonic alarm signal receiving time reported by each area alarm 3, and sending the coordinate value to the third main control chip 10 for controlling the drowning alarm to display on a large screen.
The decoding module 15 is used for the third main control chip 10 to inquire and translate the address code of the drowning alarm into the name of the drowning person and combine the positioning coordinate values to form alarm information.
The communication module 13 is configured to send the drowning event information to more than two associated user terminals by the third main control chip 10.
In this embodiment, the communication module 13 may select various possible communication technologies such as a WIFI device, a 2G/3G/4G/5G mobile communication device, and the like, and the present invention is not limited specifically herein.
Specifically, wireless transceiver 11 receives "drowning alarm 2 address code + regional alarm 3 address code + wireless alarm signal receiving time + ultrasonic alarm signal receiving time" alarm information frame that a plurality of regional alarms 3 sent in parallel, and will receive the alarm information frame is forwarded to third main control chip 10, and third main control chip 10 receives above-mentioned a plurality of regional alarm 3's alarm information frame, forwards to orientation module 14, because the region that a plurality of adjacent regional alarms 3 constitute carries out partition and code (coding table) in advance, orientation module 14 is to the alarm information frame of a plurality of adjacent regional alarms 3 of receiving, calculates the distance of drowning point and each regional alarm, and according to the relative coordinate of drowning locating point at the swimming pool is judged to the partition coding table in advance, and the editor is: the drowning alarm 2 address code + area code + wireless alarm signal reception time + relative coordinate (x, y) and the positioning information frame is sent to the third main control chip 10.
Certainly, it can be understood that, in a normal situation, the positioning module 14 receives the positioning information frame, where the positioning information frame at least includes contents of alarm information frames sent by 2 to 3 adjacent area alarms 3, and generates a positioning information frame with higher positioning accuracy (<7.5 meters); in an extreme case, when the adjacent area alarm devices are in fault, only one alarm information frame sent by the area alarm device 3 exists, and the positioning module 14 can edit and generate the alarm information frame with lower relative precision (within a range of 7.5 m in radius) according to the position of the area alarm device as a positioning coordinate: the drowning alarm 2 address code + area code + wireless alarm signal receiving time + area alarm coordinate (x, y) "is a positioning information frame.
The third main control chip 10 forwards the positioning information frame to the decoding module 15; receiving the positioning information frame, translating the address code of the drowning alarm 2 into a name, editing and generating a drowning event information frame related to rescue alarm, and sending the drowning event information frame to a third main control chip 10, wherein the content of the drowning event information frame is as follows: "XXX drowns in XX area of XXX swimming pool, please rescue people immediately" or other text expression.
The third main control chip 10 transmits the drowning event information frame to the cloud voice server through the communication module 13 to synthesize voice, and broadcasts the voice,
the third main control chip 10 sends the event information frame to the communication module 13, and sends the event information frame to two or more associated user terminals.
In this embodiment, after obtaining the location (area code), the third main control chip 10 edits the text information of time and rescue alarm by using the area code as an element. And submitting the text information to a cloud voice server to synthesize voice, and performing voice broadcast or sending the voice to an associated user terminal. Specifically, the safety monitoring device 1 is connected to a cloud voice server of a network through the communication module 13, synthesizes voice from the short message information through artificial intelligence, and automatically calls voice terminals such as mobile phones, call centers, on-duty phones, interphones and the like of all relevant parties to automatically broadcast voice short messages. For example: the following voice rescue information is played through the safety monitoring equipment 1: "Please note that in the D6 area, a drowning accident occurs, all people please evacuate to the shore, and the lifesaver please rescue immediately". Of course, it should be noted that the drowning alarm system is also provided with a telephone call system, a short message pushing module and the like, and when drowning occurs, the drowning alarm system automatically calls the alarm information to call for help and pushes the alarm event to the associated user terminal and the like.
The invention has openness, and can realize that each layer can relatively independently send out various alarm signals to people and other equipment on site. The multi-dimensional alarm signal propagation generated by each area is cross-covered, and the multi-dimensional alarm signals are mutually overlapped and mutually reinforced when the alarm capacity is formed, so that the multi-dimensional alarm system has a strong expression effect and improves the reliability of the alarm function. The safety monitoring equipment 1 of the invention is externally provided with at least two wireless transceivers 11, each zone alarm 3 which receives the alarm signal actively sends drowning event data records to the safety monitoring equipment 1, and the safety monitoring equipment 1 can draw the drowning event on a screen after receiving each event record: the name of the drowning person and the expression graph of the drowning position send out an alarm bell to remind the swimming pool management personnel. The regional alarm 3 is provided with a corresponding ultrasonic receiver 34 and a corresponding radio wave receiver 32, and can receive ultrasonic signals and radio wave alarm signals sent by the drowning alarm 2, so that the regional alarm 3 drives different alarm forms according to the received different medium alarm signals: the alarm lamps with different sounds and different colors are flickered to remind the lifeguard to rescue immediately. And the drowning alarm 2 can send out ultrasonic signal and radio wave signal respectively, realizes that the two-medium reports to the police simultaneously.
Referring to fig. 1, on the basis of the first embodiment, in a preferred embodiment of this embodiment, the emergency cloud service platform 4 is further included, and is configured to send the alarm information sent by the receiving security monitoring device 1 to two or more associated user terminals, so that the user terminals perform emergency processing according to the alarm information.
In this embodiment, the alarm information sent by the safety monitoring device 1 includes time, name of swimming pool, drowning area code, ID of drowning person (name of drowning person, mobile phone number of person related to drowning person, etc.). After receiving alarm information sent by the safety monitoring equipment 1, the emergency cloud service platform starts an emergency mechanism:
(1) and pushing event information to the emergency APP of the related personnel of the party.
(2) And initiating a video conference call, and calling relevant units such as a site video, a site interphone, a manager mobile phone, a 120 emergency center, a community hospital and the like to have an online video conference to guide the life saving matters of the swimming pool.
Specifically, in this embodiment, the safety monitoring device 1 can collect the alarm information of the drowning event occurring in the swimming pool in real time, edit the alarm information into short message information, and rapidly distribute the short message information to the mobile phones, call centers, and information centers of the related parties such as the responsible persons, managers, family members, industry management centers, insurance companies, emergency rescue organizations, and the like according to the registered related information.
For the understanding of the present invention, the working process and principle of the drowning warning system of the present embodiment will be described in detail as follows:
the physical properties of the ultrasonic waves and the wireless electromagnetic waves are as follows:
1. the radio electromagnetic wave has larger attenuation in water than in air; the higher the frequency of the wireless electromagnetic wave is, the faster the attenuation is;
2. the propagation speed of the wireless electromagnetic wave in water is about 2.20x10^8 m/s; the speed of sound wave propagation in water is faster than that in air, and the speed of sound wave propagation in water is about 1500 m/s.
According to the above characteristic 1: the water surface of the swimming pool is used as an interface, and an underwater signal intensity value can be preset as a warning line based on the characteristic that the intensity of a radio electromagnetic wave incident from the air to the water surface is suddenly reduced; the wireless transceiver 11 should use a higher frequency as the security identification signal source, and the water-entering is fast in decay, so the security identification signal source of the wireless transceiver 11 should use a higher frequency, such as 2.4 GHz. According to characteristic 2: the time difference between the arrival of the radio wave and the sound wave transmission between two points can be used for measuring the distance.
This characteristic can be quantified as an underwater state judgment condition, i.e., for the drowning alarm 2. Firstly, a wireless transceiver 11 of the safety monitoring device 1 is arranged above the swimming pool, and broadcasting signals of safety identification signals are continuously sent out. The method is used as a drowning sensor in a drowning alarm 2 worn by a swimmer, and can find the occurrence of an abnormal-drowning state in time and start an alarm process immediately.
The drowning alarm 2 starts an alarm process: and respectively sending an ultrasonic alarm signal and a wireless alarm signal to realize the simultaneous alarm of double mediums. The effective transmission radius of the ultrasonic wave is larger than that of the radio wave, the radio transmission range with small radius is directly expressed as an alarm area of a drowning occurrence point, and the ultrasonic range with large radius is an alarm notice area; since the difference between the sound wave velocity and the electromagnetic wave velocity generated by the drowning alarm 2 exceeds the 5 th power of 10, the arrival time of the electromagnetic wave between two points is almost negligible relative to the arrival time of the sound wave.
Since the deployment area of each area alarm 3 is different, the small radius of the underwater wireless signal determines that a few area alarms can receive the ultrasonic signal and the radio wave signal at the same time, and therefore the radio wave signal drives the alarm form to be preferentially expressed. Each area alarm 3 that receives an alarm signal transmits an alarm data frame to the "security monitoring device 1" via the wireless transceiver 11: the address code of the drowning alarm 2, the address code of the area alarm 3, the receiving time of the wireless alarm signal and the receiving time of the ultrasonic alarm signal.
Every swimming pool sets up "safety monitoring equipment 1", and its wireless transceiver 11 more than two of establishing, every zone alarm 3 that receives 2 alarm signal of drowning alarm all initiatively to the drowning incident data record that the center sent, and safety monitoring equipment 1 receives every incident record, can draw drowning incident on safety monitoring equipment 1's central screen: the name of the drowning person and the expression graph of the drowning position send out an alarm bell to remind the swimming pool management personnel.
The drowning point positioning method comprises the following steps: the difference Δ T between the reception times of the two-medium alarm signals between the two points can be used as the time when the sound wave reaches the area alarm 3, i.e. the distance between the two points from the drowning point to the area alarm 3 is determined: r is Δ T1500, and the relation with the possible drowning position is obtained from the single area alarm 3, namely a circular track function taking the area alarm 3 as the center of a circle and r as the radius; the plurality of area alarms 3 receiving the wireless signal respectively obtain different r, form the relationship of a plurality of circles with different radiuses on the plane diagram of the swimming pool, and obtain the intersection point area of the plurality of circles to obtain relatively accurate drowning point coordinates.
The present invention is not limited to the above-mentioned preferred embodiments, and those skilled in the art can derive other products in various forms without departing from the spirit of the present invention, however, any changes in shape or structure thereof, which are similar or equivalent to the present invention, fall within the protection scope of the present invention.
Claims (8)
1. A drowning warning system, comprising:
the system comprises a wearable drowning alarm, a plurality of area alarms suitable for being arranged on the water surface of a swimming pool and safety monitoring equipment suitable for being arranged above the swimming pool; the area alarm and the safety monitoring equipment are in communication connection with the drowning alarm;
the drowning alarm is used for monitoring a wireless safety signal with a first preset frequency transmitted by a wireless transceiver of the safety monitoring equipment on the water surface, and transmitting an alarm signal to the water surface through a plurality of propagation media when the wireless safety signal is not monitored for a preset time so as to drive a plurality of regional alarms within a signal coverage range, thereby forming a one-to-many first-stage diffusion alarm effect;
the area alarm is used for receiving an alarm signal sent by the drowning alarm underwater, generating alarm information, sending the alarm information to the safety monitoring equipment and sending an area sound-light alarm according to the alarm signal; wherein, a plurality of the regional alarms in the swimming pool can receive alarm signals sent by the drowning alarm within a preset range to form concurrent alarms;
the safety monitoring equipment is provided with a wireless transceiver which is deployed above the swimming pool, and the wireless transceiver uninterruptedly transmits a wireless safety signal with a first preset frequency as a safety identification signal to be received by the drowning alarm; the wireless transceiver is also used for receiving alarm information transmitted by the area alarm and sending an alarm according to the alarm information.
2. The drowning warning system of claim 1, wherein the plurality of propagation media include ultrasonic media and radio wave media.
3. The drowning alarm system according to claim 2, wherein the drowning alarm comprises a first wireless communication module, an ultrasonic transmitter, a radio wave transmitter, a first level alarm device and a first main control chip; the first wireless communication module, the ultrasonic transmitter, the radio wave transmitter and the first-level alarm device are respectively and electrically connected with the first main control chip;
the first wireless communication module is used for monitoring wireless safety signals transmitted by the wireless transceiver;
the first main control chip is used for judging that the first wireless communication module is in an underwater time overtime state when the first wireless communication module does not monitor the wireless safety signal for the preset time, switching the current working mode from a safety state to a dangerous state, and controlling the ultrasonic wave emitter to emit an ultrasonic alarm signal and controlling the radio wave emitter to emit a wireless alarm signal when the first main control chip enters the dangerous state;
the ultrasonic transmitter is controlled by the first main control chip to transmit ultrasonic signals with second preset frequency, and the ultrasonic signals are received by the area alarms on the water surface and serve as first trigger signals of first-level alarms;
the radio wave transmitter is controlled by the first main control chip to transmit a radio wave signal with a third preset frequency, the radio wave signal carries an address code of a drowning alarm, and a plurality of regional alarms on a water supply surface receive the radio wave signal as a second trigger signal of a first-level alarm;
the first-level alarm device is controlled by the first main control chip to start audible and visible sound and light alarm to serve as a first-level alarm.
4. The drowning warning system of claim 3, wherein the area alarm adapted to be distributed on the surface of the pool by area comprises a second level alarm device, an ultrasonic receiver, a radio receiver, a second wireless communication module and a second main control chip; the second-level alarm device, the ultrasonic receiver, the radio receiver and the second wireless communication module are respectively and electrically connected with the second main control chip;
the ultrasonic receiver is used for receiving an ultrasonic signal sent by the drowning alarm and sending the judged state to the second main control chip when the ultrasonic signal is judged to be a first-stage ultrasonic alarm signal sent in a dangerous state;
the radio receiver is used for receiving the radio wave signal sent by the drowning alarm, and sending the address code of the drowning alarm to the second main control chip when the address code of the drowning alarm is acquired from the radio wave signal when the radio wave signal is judged to be a first-level radio alarm signal sent in a dangerous state;
the second main control chip is used for recording the receiving time of the ultrasonic signal when receiving the first-stage ultrasonic alarm signal, controlling the second-stage alarm device and sending out corresponding sound and light alarm;
the second main control chip is also used for recording the receiving time of the wireless alarm signal when the first-stage wireless alarm signal is received and the address code of the drowning alarm is obtained, controlling the second-stage alarm device and sending out the sound and light alarm corresponding to the wireless alarm; simultaneously starting a second wireless communication module, and transmitting alarm information to wireless transceivers of a plurality of safety monitoring equipment above the swimming pool by the alarm event; the alarm information transmitted by each area alarm is received by the wireless transceivers of the plurality of safety monitoring devices, so that a one-to-many second-stage diffusion alarm effect is formed;
the second wireless communication module is controlled by the second main control chip and transmits alarm information to wireless transceivers of a plurality of safety monitoring devices deployed above the swimming pool;
the alarm information content comprises wireless alarm signal receiving time, ultrasonic alarm signal receiving time, a drowning alarm address code and a regional alarm address code;
and the second-level alarm device is controlled by the second main control chip to send out sound and light alarm to serve as a second-level alarm.
5. The drowning warning system according to claim 4, wherein in the audible and visual alarm as the second level alarm, the light is a flashing light and flashes at a predetermined frequency rhythm.
6. The drowning alarm system of claim 5, wherein the safety monitoring device further comprises a third level alarm device and a third main control chip, the third level alarm device being electrically connected to the third main control chip;
the third main control chip is used for receiving the alarm information which is sent by the wireless transceiver and is always in a state of waiting for receiving the alarm information at a preset frequency, and receiving the alarm information from any one area alarm;
and the third-level alarm device is controlled by the third main control chip and gives out sound and light alarm to serve as a third-level alarm when receiving an alarm instruction sent by the third main control chip.
7. The drowning alarm system of claim 6, wherein the number of safety monitoring devices is plural; the wireless signal sent by the single area alarm can drive a plurality of safety monitoring devices within a coverage range, respectively starts a third-level alarm to form a diffusion effect, and controls the third-level alarm device to send out sound and light of a system level and large-screen graphical alarm according to the alarm information.
8. The drowning alarm system of claim 7, wherein the safety monitoring device further comprises a positioning module, a decoding module, a communication module; the positioning module, the decoding module and the communication module are respectively and electrically connected with the third main control chip;
the positioning module is used for acquiring the address code of the drowning alarm and the address codes of the plurality of area alarms received by the third main control chip, and calculating the coordinate value of the drowning alarm relative to the swimming pool according to the wireless alarm signal receiving time and the ultrasonic alarm signal receiving time reported by each area alarm;
the decoding module is used for the third main control chip to inquire and translate the address code of the drowning alarm into the name of the drowning person, combine the positioning coordinate values to form alarm text information and send the alarm text information to a large screen for display through the communication module;
and the communication module is used for sending the alarm text information to more than two associated user terminals by the third main control chip.
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| CN201910094045.2A CN109785583B (en) | 2019-01-30 | 2019-01-30 | Drowning alarm system |
| PCT/CN2020/073364 WO2020156350A1 (en) | 2019-01-30 | 2020-01-21 | Drowning alarm, safety monitoring device and related system |
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| CN201910094045.2A CN109785583B (en) | 2019-01-30 | 2019-01-30 | Drowning alarm system |
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| WO2020156350A1 (en) * | 2019-01-30 | 2020-08-06 | 厦门闻达科技有限公司 | Drowning alarm, safety monitoring device and related system |
| CN110648500A (en) * | 2019-09-25 | 2020-01-03 | 北京爱接力科技发展有限公司 | Tumbling remote processing method and device, robot, storage medium and processing system |
| CN112738788A (en) * | 2019-10-29 | 2021-04-30 | 深圳市荣盛智能装备有限公司 | Help seeking method and system applied to water area and electronic equipment |
| CN111429697B (en) * | 2020-04-29 | 2024-09-27 | 广东得胜电子有限公司 | Safe drowning prevention device and detection method thereof |
| CN112309092A (en) * | 2020-11-26 | 2021-02-02 | 深圳市安室智能有限公司 | Local area network wireless smoke alarm system, method and alarm |
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