CN214845737U - Search and rescue locator falls into water - Google Patents
Search and rescue locator falls into water Download PDFInfo
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- CN214845737U CN214845737U CN202121174247.7U CN202121174247U CN214845737U CN 214845737 U CN214845737 U CN 214845737U CN 202121174247 U CN202121174247 U CN 202121174247U CN 214845737 U CN214845737 U CN 214845737U
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- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 206010013647 Drowning Diseases 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims description 14
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
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- 238000004364 calculation method Methods 0.000 description 1
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Abstract
The invention discloses a drowning search and rescue locator which comprises a host shell and a drowning switch auxiliary shell, wherein an antenna is arranged at the top of the host shell, a switch is arranged at one side of the top of the host shell, which is far away from the antenna, an LORA mainboard and a water contact switch detector are arranged in the host shell, the LORA mainboard and the water contact switch detector are arranged adjacently, clamping blocks are arranged on two sides of the LORA mainboard and two sides of the water contact switch detector, a battery is arranged at the bottom end in the host shell, and the drowning switch auxiliary shell is arranged on the back of the host shell. By adopting the structure, the invention has the advantages of long duration, strong water resistance, small volume, portability, timely signal transmission, accurate positioning and strong extensibility.
Description
Technical Field
The invention relates to the technical field of search and rescue positioning, in particular to a drowning search and rescue positioner.
Background
In flood prevention and emergency treatment, dangerous situations are rapidly treated, lives and properties of people are rescued, and loss caused by flood is prevented or reduced. The emergency treatment method is generally divided into a conventional technology and a modern technology. The modern emergency technology mainly adopts high and new technology and mechanized equipment, such as the emergency plugging technology of a steel-wood-soil-stone combined dam applied to 98 Yangtze river flood fighting, the geotextile emergency technology, the mechanized material transportation and throwing, the sinking of ships and vehicles, the emergency plugging and the like. The system comprises a whole body for repairing piping, a reverse filter surrounding well, a dam piping leakage detector, a portable pile driver, a soil bag loader, an emergency retaining dike, and new technologies, new equipment, new materials and new methods for emergency rescue such as underwater topography measurement, underwater welding, mechanical riprap shore protection and the like.
The emergency maintenance method comprises bank patrol inspection, collapse emergency maintenance, overtopping emergency maintenance and building sliding emergency maintenance. Inspecting the bank patrol: in flood season, especially in rainstorm, flood, typhoon, earthquake, reservoir water level sudden drop and continuous high water level flood running period, a specially-assigned person needs to make round-the-clock inspection. Collapse emergency treatment: when the slope surface or slope foot of the dam collapses and slips due to water flow scouring or water level sudden drop of the dam, the dam can be rescued by foot protection for resisting shock, willow sinking for slowing down slipping and preventing shock, load reduction and slope addition and the like. Overtopping and emergency maintenance: under the action of over-standard flood and wind waves, when the dam is in danger of overtopping, the water discharge amount is increased, the reservoir level (for a reservoir) is reduced or the water blocking obstacles such as a reservoir peak shifting at the upstream of a river channel and water blocking bridges and culverts are blasted at the downstream, and the water flow is accelerated to discharge; one side is arranged at the top of the dam or the top of the dam to rob the bank. Sliding and rescuing the building: when the brake body is unstable and slides, on one hand, water is guided away as much as possible, the water inflow is reduced, and the water level before the brake is reduced; on the other hand, a pressure weight anti-slip measure is adopted.
Most of the flood prevention and rescue work needs workers to work in water and wear corresponding equipment to ensure the life safety of the workers under the condition of sudden water falling in the task execution, and the workers falling into water are positioned and searched and rescued. The existing mainstream positioning technology is not enough to support the working state of flood control and emergency rescue no matter the communication handshake time or the continuous water resistance of the equipment, the equipment is usually large in size and not easy to carry, and the equipment cannot give an alarm in time to send out information after falling into water or the positioning condition is inaccurate, so that the optimal rescue time is missed.
Disclosure of Invention
The invention aims to provide a drowning search and rescue positioner which is long in duration, strong in water resistance, small in size, easy to carry, capable of timely sending out a signal and accurate in positioning.
In order to achieve the purpose, the invention provides the following technical scheme that the drowning search and rescue locator comprises a host shell and a drowning switch auxiliary shell, wherein an antenna is arranged at the top of the host shell, a switch is arranged on one side, away from the antenna, of the top of the host shell, an LORA mainboard and a water contact switch detector are arranged in the host shell, the LORA mainboard and the water contact switch detector are arranged adjacently, clamping blocks are arranged on two sides of the LORA mainboard and two sides of the water contact switch detector, a battery is arranged at the bottom end in the host shell, and the drowning switch auxiliary shell is arranged on the back of the host shell.
Preferably, the outer surfaces of the main machine shell and the auxiliary shell of the water-falling switch are coated with waterproof coatings, and the waterproof coatings are water emulsion type high polymer coatings.
Preferably, touch water switch detector including touch water switch sensor and touch water switch detector, touch water switch sensor and adopt electronic type pressure switch sensor, touch water switch detector and adopt photoelectric mechanical sensor.
Preferably, the antenna is a transmitting antenna, and the battery material is a lithium battery.
Preferably, a radio frequency coaxial connector is arranged on the LORA main board, and the radio frequency coaxial connector is an MCX connector.
Preferably, a fixed alarm base station corresponding to the drowning search and rescue locator is arranged, and the fixed alarm base station is provided with an LORA Internet of things link and a DTU operator link.
Preferably, a mobile base station corresponding to the drowning search and rescue locator is arranged, the mobile base station adopts miniaturized equipment and also has the LORA internet of things link and the DTU operator link, and the mobile base station supports rapid antenna replacement.
Preferably, the drowning search and rescue locator adopts a wireless transmission system and a time difference positioning algorithm, the wireless transmission system is data transmission of a private network, and the time difference positioning algorithm adopts a two-dimensional plane positioning method.
Preferably, the two-dimensional planar positioning method requires three sensors and two sets of time differences, S1、S2、S3For the arranged sensors, the acoustic emission source spacing S1Most, its formula is:
in the formula, t1,t2,t3The arrival sequence and arrival time of the acoustic emission signals; c is acoustic emission propagation speed; l is an angle reference line;
the solution to the system of equations is the acoustic emission source location.
Preferably, the LORA main board and the water contact switch detector are connected to the inside of the main frame case through a threaded connection or a welding manner.
Therefore, the invention adopts the structure and has the following advantages:
1. the single lithium battery has high voltage, large specific energy, long storage life and good high-low temperature performance, and can maintain the long-time operation of equipment. The outer surfaces of the main machine shell and the auxiliary shell of the water falling switch are coated with water emulsion type high polymer waterproof coating, and a waterproof film formed by curing the coating has certain extensibility, elastoplasticity, crack resistance, impermeability and weather resistance, and can play a waterproof role, so that the damage of water inflow of internal parts is avoided.
2. The two-dimensional plane positioning method is adopted, the principle is simple, the practicability is high, the three sensors form a triangular array, and the positioning is more accurate and rapid.
3. The fixed alarm base station and the mobile base station are provided with an LORA Internet of things link and a DTU operator link, and have the advantages of rapid and flexible networking, short construction period, low cost, wide network coverage and good security and confidentiality performance.
4. The water contact switch detection sensor adopts an electronic type and a photoelectric mechanical sensor, can effectively protect repeated actions caused by pressure fluctuation by utilizing return difference setting, protects control equipment, can realize high-precision detection of pressure and liquid level signals, realizes the purpose of monitoring pressure and liquid level, and has the characteristics of intuition, high precision and long service life.
Drawings
Fig. 1 is a schematic structural view of a drowning search and rescue locator according to the present invention;
FIG. 2 is a three-dimensional view of a host housing according to the present invention;
FIG. 3 is a three-dimensional view of a host housing in accordance with the present invention;
fig. 4 is a front view of the auxiliary housing of the downpipe switch of the present invention.
Description of the drawings, 1, a host housing; 2. an antenna; 3. a switch; 4. a water contact switch detector; 5. an LORA mainboard; 6. a battery.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
As shown in fig. 1 and 3, a search and rescue locator falls into water, include host computer shell 1 and fall into water switch auxiliary shell, 1 top of host computer shell is equipped with antenna 2, 1 top of host computer shell is kept away from 2 one side of antenna is equipped with switch 3, 1 inside LORA mainboard 5 and the switch detector 4 that touches of being equipped with of host computer shell, LORA mainboard 5 with touch the adjacent setting of switch detector 4, LORA mainboard 5 with touch 4 both sides of switch detector and be equipped with the fixture block, battery 6 is equipped with to the inside bottom of host computer shell 1, fall into water switch auxiliary shell establishes the back of host computer shell 1. The water contact switch detector 4 comprises a water contact switch sensor and a water contact switch detector, wherein the water contact switch sensor adopts an electronic pressure switch sensor and is responsible for detecting whether a person is carried to fall into water or not. The pressure and liquid level monitoring device can effectively protect repeated actions caused by pressure fluctuation by utilizing return difference setting, protects control equipment, can realize high-precision detection of pressure and liquid level signals and realizes the purpose of monitoring pressure and liquid level, and has the characteristics of intuition, high precision and long service life. The water contact switch detector adopts a photoelectric mechanical sensor and is responsible for judging signals returned by the sensor and shielding interference conditions such as raindrops, splashing, humidity and the like.
As shown in fig. 1, the antenna 2 is a transmitting antenna, the battery 6 is a lithium battery, and the single battery of the lithium battery has high voltage, large specific energy, long storage life, good high and low temperature performance, and can maintain long-time operation of the device. And a radio frequency coaxial connector is arranged on the LORA mainboard 5, and the radio frequency coaxial connector is an MCX connector. The LORA motherboard 5 is responsible for functions of encoding, modulating, amplifying and the like of radio frequency signals in the system. The radio frequency coaxial connector is used as a transmission medium of radio frequency signals, and the MCX connector plays a role of a bridge and can process signals.
As shown in fig. 2 and 4, the outer surfaces of the main body housing 1 and the auxiliary housing of the downpipe switch are coated with waterproof paint, and the waterproof paint is water emulsion type polymer paint. The waterproof film formed by curing the coating has certain extensibility, elastoplasticity, crack resistance, impermeability and weather resistance, and can play a role in waterproofing, so that the damage of water inflow of internal parts is avoided. The LORA mainboard 5 with touch water switch detector 4 and connect through threaded connection or welded mode inside the host computer shell. The host shell 1 is 105mm long, 73mm high and 25.5mm wide; the waterfall switch auxiliary shell is in a front view and is 101.8mm long. The width is 69.8 mm. The volume is less, makes things convenient for the staff to carry, and does not influence staff's normal task.
The system is provided with a fixed alarm base station corresponding to the drowning search and rescue locator, wherein the fixed alarm base station is provided with an LORA Internet of things link and a DTU operator link. The mobile base station corresponding to the drowning search and rescue locator is arranged, and the method has the advantages of rapid and flexible networking, short construction period, low cost, wide coverage range and good security and confidentiality. The mobile base station adopts miniaturized equipment which is also provided with the LORA Internet of things link and the DTU operator link, and the mobile base station supports the rapid replacement of an antenna. The LORA Internet of things link is responsible for receiving early warning information reported by the locator, and the DTU operator link is responsible for transmitting the warning information transmitted by the Internet of things to the public network cloud in real time.
As shown in fig. 1, the drowning search and rescue locator employs a wireless transmission system and a time difference location algorithm, the wireless transmission system is a private network data transmission, and the time difference location algorithm employs a two-dimensional plane location method. The two-dimensional planar positioning method requires three sensors and two sets of time differences, S1、S2、S3For the arranged sensors, the acoustic emission source spacing S1Most, its formula is:
in the formula, t1,t2,t3The arrival sequence and arrival time of the acoustic emission signals; c is acoustic emission propagation speed; l is an angle reference line;
the solution to the system of equations is the acoustic emission source location. The two-dimensional plane positioning method is adopted, the principle is simple, the practicability is high, the three sensors form a triangular array, and the positioning is more accurate and rapid.
The working principle of the invention is as follows: when the rescue and relief task is executed, workers can wear the drowning search and rescue locator, when the drowning occurs, the water touch switch sensor detects the drowning accident of the carrying person, and the LORA mainboard encodes, modulates and amplifies the radio frequency signal. The transmitting antenna of the locator can timely and continuously send an address signaling carrying personal information of workers, upload personnel falling into water and position information, read zone information by a fixed alarm base station arranged along the river, upload the zone information to a public network server through a TDU (time dependent Unit) configured by the locator, and send data by a management terminal on the server. Therefore, the approximate existing area of the person falling into the water is judged, the mobile base station capable of supporting mobile monitoring is used for carrying out accurate position calculation on the person falling into the water, a two-dimensional plane positioning method is adopted to determine the specific position, and rescue means are adopted. If no fixed alarm base station is deployed on the periphery, ships and vehicles carrying the portable mobile base station travel along the river or the dam in the downstream direction until the early warning signal is received, the directional antenna can be replaced, and visual search is assisted.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a locator is searched for andd rescue in falling into water, a serial communication port, assist the shell including host computer shell (1) and the switch that falls into water, host computer shell (1) top is equipped with antenna (2), keep away from at host computer shell (1) top antenna (2) side is equipped with switch (3), host computer shell (1) inside is equipped with LORA mainboard (5) and touches water switch detector (4), LORA mainboard (5) with touch the adjacent setting of water switch detector (4), LORA mainboard (5) with touch water switch detector (4) both sides and be equipped with the fixture block, battery (6) are equipped with to the inside bottom of host computer shell (1), the switch shell that falls into water is assisted and is established the back of host computer shell (1).
2. The drowning search and rescue locator according to claim 1, wherein the outer surfaces of the main unit housing (1) and the drowning switch auxiliary housing are coated with waterproof paint, and the waterproof paint is water emulsion type polymer paint.
3. Drowning search and rescue locator according to claim 1, characterized in that the water-contact switch detector (4) comprises a water-contact switch sensor and a water-contact switch detector, the water-contact switch sensor employs an electronic pressure switch sensor, and the water-contact switch detector employs a photoelectric mechanical sensor.
4. The drowning search and rescue locator according to claim 1, characterized in that the antenna (2) is a transmitting antenna, and the battery (6) is made of a lithium battery.
5. The drowning search and rescue locator according to claim 1, characterized in that a radio frequency coaxial connector is provided on the LORA main board (5), and the radio frequency coaxial connector is an MCX connector.
6. A drowning search and rescue locator according to claim 1, characterized in that a fixed alarm base station corresponding to the drowning search and rescue locator is provided, the fixed alarm base station having a LORA internet of things link and a DTU operator link.
7. Overboard search and rescue locator according to claim 6, characterized in that a mobile base station corresponding to the overboard search and rescue locator is provided, which employs miniaturized equipment, also having the LORA internet of things link and the DTU operator link, which supports fast antenna (2) replacement.
8. The overboard search and rescue locator of claim 1, wherein the overboard search and rescue locator employs a wireless transmission system and a time difference location algorithm, the wireless transmission system is a private network data transmission, and the time difference location algorithm employs a two-dimensional plane location method.
9. The overboard search and rescue locator of claim 8 wherein the two dimensional planar location method requires three sensors and two sets of time differences,S1、S2、S3for the arranged sensors, the acoustic emission source spacing S1Most, its formula is:
in the formula, t1,t2,t3The arrival sequence and arrival time of the acoustic emission signals; c is acoustic emission propagation speed; l is an angle reference line;
the solution to the system of equations is the acoustic emission source location.
10. Drowning search and rescue locator according to claim 1, characterized in that the LORA main board (5) and the water touch switch detector (4) are connected inside the host housing (1) by means of screwing or welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174247.7U CN214845737U (en) | 2021-05-28 | 2021-05-28 | Search and rescue locator falls into water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174247.7U CN214845737U (en) | 2021-05-28 | 2021-05-28 | Search and rescue locator falls into water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214845737U true CN214845737U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121174247.7U Expired - Fee Related CN214845737U (en) | 2021-05-28 | 2021-05-28 | Search and rescue locator falls into water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214845737U (en) |
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2021
- 2021-05-28 CN CN202121174247.7U patent/CN214845737U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |