CN212649466U

CN212649466U - Portable diving communication equipment based on blue light LED

Info

Publication number: CN212649466U
Application number: CN202020845060.4U
Authority: CN
Inventors: 谢杰荣; 郑磊; 楚涓; 孙晓磊; 李诠娜
Original assignee: PLA Navy Submarine College
Current assignee: PLA Navy Submarine College
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-03-02
Anticipated expiration: 2030-05-20

Abstract

A portable diving communication device based on blue light LED comprises a shell, a transmitter, a receiver, a communication circuit board on which a communication device is arranged; the communication device comprises a transmitting unit and a receiving unit, wherein the transmitting unit comprises an analog signal input module, an analog signal modulator, a digital signal input module, an input ARM development board, a combiner, a three-stage amplifying circuit, a blue light LED driver, a photoelectric conversion module and a focusing lens, and the transmitting unit also comprises a transmitter; the receiving unit comprises a receiver, a pre-amplification circuit, a main amplification circuit, a detection filter circuit, a shunt, an analog signal demodulator, an analog signal output module, an output ARM development board and a digital signal output module. The advantages are that: the transmission speed is high, the transmission is stable, the system practicability is enhanced, and the development potential is large; the cost of components is low; realizing analog-digital cross interoperability: the communication distance is prolonged, and the receiving area is expanded to 360-degree space surface coverage.

Description

Portable diving communication equipment based on blue light LED

Technical Field

The utility model relates to an underwater communication technical field, concretely relates to portable dive communication equipment based on blue light LED.

Background

Underwater communication is a difficult and urgent problem to solve in modern communication technology. In the fields of ocean exploration, underwater rescue, underwater scientific investigation, ocean monitoring and the like, diving equipment plays a vital role. Diving equipment commonly used in the prior art is commonly adopted: (1) long-wave radio transmission in an ultra-low frequency range is not widely applied in practical application because of extremely low communication rate and large electromagnetic interference of underwater equipment. (2) Underwater acoustic communication is developed more and more technically; however, the transmission speed of sound in seawater is still relatively slow (not more than 1500 m/s), the communication speed is not high, and the equipment is large in size and high in cost. The manufacturing cost of the two is high, the defects of poor communication quality, poor confidentiality, unstable signals, narrow bandwidth, low transmission speed and the like exist, and great inconvenience is brought to underwater communication and cooperation among divers, guarantee of life safety and the like; not only limits diver range of motion, but may jeopardize diver safety.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the portable diving communication equipment based on the blue light LED is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a portable dive communication equipment based on blue light LED which characterized in that: the water-tight sealing device comprises a water-tight sealing shell and a communication circuit board sealed in the water-tight sealing shell, wherein a communication device is arranged on the communication circuit board; the watertight sealing shell is provided with a watertight sealing shell;

the communication device comprises a transmitting unit and a receiving unit, wherein the transmitting unit comprises an analog signal input module, an analog signal modulator, a digital signal input module, an input ARM development board, a combiner, a three-level amplifying circuit, a blue light LED driver, a photoelectric conversion module and a gathering lens, and the transmitting unit also comprises the transmitter; the receiving unit comprises the receiver, a pre-amplification circuit, a main amplification circuit, a detection filter circuit, a shunt, an analog signal demodulator, an analog signal output module, an output ARM development board and a digital signal output module;

the analog signal input module is electrically connected with the analog signal modulator, and the digital signal input module is electrically connected with the input ARM development board; the analog signal modulator and the input ARM development board are respectively and electrically connected with the combiner; the combiner, the three-stage amplifying circuit, the blue light LED driver and the photoelectric conversion module are sequentially and electrically connected; the photoelectric conversion module, the focusing lens and the emitter are sequentially connected;

the receiver, the pre-amplification circuit, the main amplification circuit, the detection filter circuit and the shunt are sequentially and electrically connected; the shunt is respectively and electrically connected with the analog signal demodulator and the output ARM development board, the analog signal demodulator is electrically connected with the analog signal output module, and the output ARM development board is electrically connected with the digital signal output module.

Preferably, the watertight sealing shell is made of acrylic plates, and the inner wall of the watertight sealing shell is coated with epoxy resin; and spraying three-proofing paint on the surface layer of the communication circuit board, and reinforcing by using silica gel.

Compared with the prior art, the beneficial effects of the utility model are that: (1) the blue visible light is innovatively utilized for underwater communication, and compared with wired communication, underwater acoustic communication and the like, the underwater acoustic communication system is high in transmission speed and stable in transmission, enhances the practicability of the system, and has great development potential. (2) The structure is simple relatively, and the components and parts are with low costs, and the product has very big price advantage. And can reequip on equipment such as current dive illumination, camera shooting, integrate, miniaturized development potentiality is big. (3) Analog and digital signals are transmitted simultaneously, so that the cross and mutual use of analog and digital is realized, the functions of illumination, communication talkback and shooting are integrated, and the device is simple, light and suitable for diving operation. (4) Based on the transmission characteristic analysis of blue light in a seawater channel, the blue light LED is used as a light source, a focusing lens is used for focusing the light path of the blue light LED at an emitting unit so as to prolong the communication distance, and a diversity receiving technology is adopted at a receiving unit so as to enlarge the receiving area to 360-degree space surface coverage.

Drawings

Fig. 1 is a block diagram of the embodiment of the present invention.

Labeled as:

1. comprises a watertight packaging shell; 2. a communication circuit board; 21. a transmitting unit; 211. an analog signal input module;

212. an analog signal modulator; 213. a digital signal input module; 214. inputting an ARM development board; 215. a combiner;

216. a third-stage amplifying circuit; 217. a blue LED driver; 218. a photoelectric conversion module; 219. a focusing lens;

210. a transmitter; 22. a receiving unit; 221. a receiver; 222. a pre-amplification circuit; 223. a main amplification circuit;

224. a detection filter circuit; 225. a splitter; 226. an analog signal demodulator; 227. an analog signal output module;

228. outputting an ARM development board; 229. and a digital signal output module.

Detailed Description

The invention is further described with reference to the following embodiments:

example one

As shown in fig. 1, a portable diving communication device based on blue light LED comprises a watertight packaging case 1 and a communication circuit board 2 packaged in the watertight packaging case 1, wherein a communication device is arranged on the communication circuit board 2; the communication device comprises a transmitting unit 21 and a receiving unit 22; the watertight packaging shell 1 is made of an acrylic plate, and the inner wall of the watertight packaging shell is coated with epoxy resin; the surface layer of the communication circuit board 2 is sprayed with three-proofing paint and is reinforced by silica gel.

The watertight sealing device also comprises a transmitter 210 and a receiver 221 which are arranged on the watertight sealing shell 1, wherein one part of the transmitter 210 is exposed out of the watertight sealing shell 1, and the other part is arranged in the watertight sealing shell 1; a part of the receptacle 221 is exposed outside the watertight sealing case 1, and the other part is disposed inside the watertight sealing case 1.

The transmitting unit 21 includes an analog signal input module 211, an analog signal modulator 212, a digital signal input module 213, an input ARM development board 214, a combiner 215, a three-stage amplification circuit 216, a blue LED driver 217, a photoelectric conversion module 218, a collective lens 219, and a transmitter 210; the analog signal input module 211 is electrically connected with the analog signal modulator 212, and the digital signal input module 213 is electrically connected with the input ARM development board 214; the analog signal modulator 212 and the input ARM development board 214 are respectively and electrically connected with the combiner 215; the combiner 215, the three-stage amplifying circuit 216, the blue light LED driver 217 and the photoelectric conversion module 218 are sequentially and electrically connected; the photoelectric conversion module 218, the collective lens 219, and the emitter 210 are sequentially connected in this order.

The receiving unit 22 includes a receiver 221, a pre-amplifying circuit 222, a main amplifying circuit 223, a detection filter circuit 224, a splitter 225, an analog signal demodulator 226, an analog signal output module 227, an output ARM development board 228, and a digital signal output module 229; the receiver 221, the preamplifier 222, the main amplifier 223, the detection filter 224 and the splitter 225 are electrically connected in sequence; the splitter 225 is electrically connected to the analog signal demodulator 226 and the output ARM development board 228, respectively, the analog signal demodulator 226 is electrically connected to the analog signal output module 227, and the output ARM development board 228 is electrically connected to the digital signal output module 229.

The cable connecting plug used by the utility model is an aviation plug with IP86 waterproof grade; the power switch is a waterproof pressure-sensitive switch of IP 86; the joints of the emitter 210 and the receiver 221 and the watertight packaging shell 1 are all fixed by 502 glue and are subjected to waterproof treatment by adopting silica gel and resin.

The working principle of the utility model is as follows:

as shown in fig. 1, the transmitting unit 21 is used to convert the information of the user into visible light signal and transmit the visible light signal to the other party:

on one hand, the transmitting unit 21 inputs the original audio baseband signal from the microphone to the analog signal modulator 212 through the analog signal input module 211, performs AM modulation processing through the analog signal modulator 212, and outputs an analog frequency band signal to the combiner 215; on the other hand, the transmitting unit 21 inputs the original image and video signal from the camera to the input ARM development board 214 through the digital signal input module 213, performs digital modulation and coding processing through the input ARM development board 214, and outputs a digital frequency band signal in TTL level format to the combiner 215;

the analog electrical signal and the digital electrical signal are synthesized into a signal by the combiner 215, and are input to the third-stage amplifying circuit 216, and are sequentially subjected to linear voltage amplification and linear current amplification by the third-stage amplifying circuit 216, so that the linear amplified signal is output to the blue LED driver 217, and an electrical signal capable of driving the blue LED light source is generated by the blue LED driver 217 and is input to the photoelectric conversion module 218;

the photoelectric conversion module 218 performs electric signal-optical signal conversion processing to generate a divergent blue visible light signal, the divergent blue visible light signal is radiated to the focusing lens 219, the focusing lens 219 focuses on the optical path to generate a focused blue visible light signal, and the focused blue visible light signal is emitted to the outside of the watertight sealing housing 1 through the emitter 210.

As shown in fig. 1, the receiving unit 22 is used for the user to receive the information sent by the outside personnel:

the receiver 221 performs diversity reception on a blue visible light signal which is from a 360-degree space surface and carries original information, performs optical signal-electrical signal conversion processing by using a PIN-13DSB silicon photodiode to generate a high-frequency current signal, performs I-V conversion and pre-amplification by using a pre-amplification circuit 222, and further amplifies the high-frequency current signal by using a main amplification circuit 223 to generate a voltage amplification signal with certain Gaussian noise; the voltage amplification signal is input to a detection filter circuit 224, comparator decision and noise isolation processing are performed by the detection filter circuit 224, a low-noise analog signal and a digital signal in a TTL level format are generated, and output to a splitter 225, where separation processing of the analog signal and the digital signal is performed;

on the other hand, the splitter 225 inputs the separated analog band signal to the analog signal demodulator 226; the analog signal demodulator 226 performs AM demodulation processing, and the analog signal output module 227 restores an audio baseband signal carrying original information and sends the audio baseband signal to an audio player; on the other hand, the splitter 225 inputs the separated digital band signal to the output ARM development board 228, performs digital demodulation and decoding processing through the output ARM development board 228, restores an image and a video signal carrying original information through the digital signal output module 229, and transmits the restored image and video signal to the visual operation terminal.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a portable dive communication equipment based on blue light LED which characterized in that: the water-tight sealing device comprises a water-tight sealing shell and a communication circuit board sealed in the water-tight sealing shell, wherein a communication device is arranged on the communication circuit board; the watertight sealing shell is provided with a watertight sealing shell;

2. The blue LED-based portable submersible communication device according to claim 1, wherein: the watertight packaging shell is made of an acrylic plate, and the inner wall of the watertight packaging shell is coated with epoxy resin; and spraying three-proofing paint on the surface layer of the communication circuit board, and reinforcing by using silica gel.