CN106301596A - The devices and methods therefor charging under water with communicating can be realized simultaneously - Google Patents
The devices and methods therefor charging under water with communicating can be realized simultaneously Download PDFInfo
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- CN106301596A CN106301596A CN201610648594.6A CN201610648594A CN106301596A CN 106301596 A CN106301596 A CN 106301596A CN 201610648594 A CN201610648594 A CN 201610648594A CN 106301596 A CN106301596 A CN 106301596A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims description 61
- 238000004146 energy storage Methods 0.000 claims description 21
- 239000011521 glass Substances 0.000 claims description 10
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 8
- 239000013535 sea water Substances 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 20
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241001025261 Neoraja caerulea Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/806—Arrangements for feeding power
- H04B10/807—Optical power feeding, i.e. transmitting power using an optical signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Optical Communication System (AREA)
Abstract
The present invention relates to underwater wireless communication and energy transmission technology, it is desirable to provide a kind of devices and methods therefor that can simultaneously realize charging under water with communicating.This device includes transmitting end device and the receiving end device being respectively provided with pressure-resistant seal parts；Wherein transmitting end device includes that the signal generator being sequentially connected, voltage amplifier, bias drive module and laser diode, and transmitting terminal and first lens of laser diode are positioned opposite；Receiving end device includes photovoltaic cell module, communication module and electric energy memory module, and photovoltaic cell module is connected with communication module and electric energy memory module respectively, and photovoltaic cell module and the second lens are positioned opposite.The present invention can realize non-contact charge and wireless data transmission under water simultaneously, overcome existing charge independence and data transmission system structure is complicated, cost shortcoming high, inefficient, substantially increase efficiency and the speed of underwater data transmission of non-contact charge under water.The present invention uses general-purpose device, reduces cost, improves the versatility of device.
Description
Technical Field
The invention relates to underwater wireless communication and energy transmission technology, in particular to a device and a method for realizing underwater charging and communication simultaneously.
Background
With the continuous development of ocean resource development and scientific research, seabed observation networks, underwater vehicles and underwater robots are more and more involved in underwater detection. In underwater detection, an underwater vehicle needs to receive monitoring data acquired by a sensor arranged on the sea bottom; the underwater robot needs to be charged on an underwater charging platform regularly. Considering the difficulty of underwater cabling and maintenance thereof and the inconvenience and high cost of using underwater plugs. Contactless power supply and wireless data transmission between various devices and apparatuses are important.
In the prior art, wireless data transmission and non-contact power supply processes between various devices are performed separately. The wireless data transmission among various underwater devices mostly adopts acoustic communication, underwater radio frequency communication or underwater wireless optical communication. Various underwater devices are charged in a non-contact manner, and the technologies of electromagnetic induction coupling, magnetic field resonance or laser energy transmission are mostly adopted. The existing underwater detection equipment is required to realize underwater wireless data transmission and non-contact charging, one of the communication technology and the charging technology is selected to respectively establish a wireless data transmission system and a non-contact charging system, and the system is high in complexity, high in cost and difficult to maintain.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a device and a method for realizing underwater charging and communication simultaneously. The invention can meet the increasing requirements of underwater communication and underwater non-contact charging.
In order to solve the technical problem, the solution of the invention is as follows:
the device capable of simultaneously realizing underwater charging and communication comprises a pressure-resistant sealing part with a cavity; the device comprises a transmitting end device and a receiving end device which are respectively provided with a pressure-resistant sealing part; wherein,
the transmitting end device comprises: the signal generator, the voltage amplifier, the bias driving module and the laser diode are arranged in the first pressure-resistant sealing part and are sequentially connected, and the emitting end of the laser diode is opposite to the first lens; the first lens is arranged in the cavity of the first pressure-resistant sealing part, and a glass window capable of transmitting laser is arranged on the wall of the first pressure-resistant sealing part, or the first lens is embedded on the wall of the first pressure-resistant sealing part;
the receiving end device includes: the photoelectric cell panel, the communication module and the electric energy storage module are arranged in the second pressure-resistant sealing component, the photoelectric cell panel is respectively connected with the communication module and the electric energy storage module, and the photoelectric cell panel and the second lens are oppositely arranged; the second lens is disposed in the cavity of the second pressure-resistant sealing member and a glass window which can transmit laser light is provided on the wall of the second pressure-resistant sealing member, or the second lens is embedded on the wall of the second pressure-resistant sealing member.
In the present invention, the first pressure-resistant sealing member and the second pressure-resistant sealing member are both pressure-resistant sealing members made of carbon fiber reinforced plastic.
In the invention, the first lens and the second lens are both convex lenses, and the emitting end of the laser diode and the photocell plate are respectively positioned at the positions of the light beam collimation focuses of the corresponding convex lenses.
In the invention, the laser diode is a blue laser diode with the wavelength of 450 nm.
In the invention, the photovoltaic panel is made of GaAs semiconductor material.
In the invention, the electric energy storage module is a lithium battery and is provided with an external charging interface.
The invention further provides a method for simultaneously realizing underwater charging and communication by utilizing the device, which comprises the following steps:
a signal generator of the transmitting terminal device generates a communication signal, and a voltage amplifier amplifies the signal and then sends the signal to a bias driving module, so that the bias driving module drives a laser diode to emit light; the laser beam emitted by the laser diode enters the seawater channel after being collimated by the first lens; the laser beam is transmitted through a seawater channel and then reaches the second lens, and is focused on the photoelectric cell plate by the second lens; the photovoltaic cell panel converts the received light energy into electric energy, and the electric energy is transmitted to the electric energy storage module for storage; meanwhile, the time-varying current generated by the photovoltaic panel carries communication information, and the communication module demodulates the communication information to achieve the purpose of communication.
The invention also provides a transmitting terminal device of the device for realizing underwater charging and communication simultaneously, which comprises a first pressure-resistant sealing part with a cavity; further comprising: the signal generator, the voltage amplifier, the bias driving module and the laser diode are arranged in the first pressure-resistant sealing part and are sequentially connected, and the emitting end of the laser diode is opposite to the first lens; the first lens is arranged in the cavity of the first pressure-resistant sealing component, and a glass window capable of transmitting laser is arranged on the wall of the first pressure-resistant sealing component, or the first lens is embedded on the wall of the first pressure-resistant sealing component.
The invention also provides a receiving end device of the device for realizing underwater charging and communication simultaneously, which comprises a second pressure-resistant sealing part with a cavity; further comprising: the photoelectric cell panel, the communication module and the electric energy storage module are arranged in the second pressure-resistant sealing component, the photoelectric cell panel is respectively connected with the communication module and the electric energy storage module, and the photoelectric cell panel and the second lens are oppositely arranged; the second lens is disposed in the cavity of the second pressure-resistant sealing member and a glass window which can transmit laser light is provided on the wall of the second pressure-resistant sealing member, or the second lens is embedded on the wall of the second pressure-resistant sealing member.
The working principle of the invention is as follows:
the invention is based on the underwater wireless optical communication technology and the wireless energy transmission technology, and utilizes the good photoelectric conversion performance and photoelectric detection performance of the GaAs semiconductor photoelectric cell board to simultaneously regard the GaAs semiconductor photoelectric cell board as a photoelectric converter and a photoelectric detector so as to achieve the purpose of simultaneously carrying out underwater communication and transmission.
In the invention: the signal generator generates a communication signal to be transmitted; the voltage amplifier is used for amplifying the signal of the signal generator; the bias driving module is used for driving a Laser Diode (LD) and converting the electric signal into an optical signal. The first lens is used for collimating the laser beam emitted by the laser diode, so that energy is emitted in a concentrated manner, and energy loss is reduced. The second lens is used for focusing the laser beam on the photoelectric cell plate so as to improve the optical power density and the conversion efficiency and effectively increase the signal intensity for communication; the photoelectric cell panel is used for converting light energy into electric energy and converting optical signals into electric signals; the communication module is used for receiving and demodulating the electric signal, and can receive and demodulate the electric signal generated by the photoelectric cell panel without extra electric energy supply, so as to achieve the purpose of communication; the electric energy storage module is used for storing electric energy and providing a charging interface for the outside.
The invention discloses a device capable of carrying out underwater non-contact charging and wireless data transmission simultaneously, which overcomes the defects of high complexity, high cost and low efficiency of the existing discrete system and innovatively provides the device capable of carrying out underwater non-contact charging and wireless data transmission simultaneously. The device has realized using one set of system, accomplishes two kinds of different tasks simultaneously in one-time operation, greatly reduced the complexity of system, promoted work efficiency. In addition, the GaAs semiconductor photocell plate and the blue laser diode used in the invention are all universal devices mature in the existing market, thereby reducing the cost of the device and improving the universality of the device.
Compared with the prior art, the invention has the beneficial effects that:
1. the underwater device is formed by the GaAs semiconductor photoelectric cell panel and the blue-ray laser diode innovatively, can realize underwater non-contact charging and wireless data transmission simultaneously, overcomes the defects of complex structure, high cost and low efficiency of the conventional independent charging and data transmission system, and greatly improves the efficiency of underwater non-contact charging and the speed of underwater data transmission.
2. The GaAs semiconductor photocell plate and the blue laser diode used by the invention are all universal devices mature in the existing market, thereby reducing the cost and improving the universality of the device.
3. The device capable of simultaneously charging and communicating underwater can be assembled on various devices without any change, so that a specific function is realized.
Drawings
FIG. 1 is a schematic diagram of a device system for underwater simultaneous charging and communication according to an embodiment of the present invention;
FIG. 2 is a block diagram of a transmitting device according to an embodiment of the present invention;
fig. 3 is a block diagram of a receiving end device according to an embodiment of the present invention.
The reference numbers in the figures are:
1 transmitting end device; 2 receiving end device; 10 a first pressure-resistant sealing member; 11 a signal generator; 12 a voltage amplifier; 13 biasing the driving module; 14 a laser diode; 15 a first lens;
20 a second pressure-resistant sealing member; 21 a second lens; 22 a photovoltaic panel; 23 a communication module; 24 electrical energy storage module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The device capable of simultaneously realizing underwater charging and communication comprises a transmitting end device 1 and a receiving end device 2 which are respectively provided with a pressure-resistant sealing part; wherein,
the transmitting-end apparatus 1 includes: a signal generator 11, a voltage amplifier 12, a bias driving module 13 and a laser diode 14 mounted in the first pressure-resistant sealing member 10 and connected in sequence, an emitting end of the laser diode 14 being disposed opposite to the first lens 15; the first lens 15 is provided in the cavity of the first pressure-resistant sealing member 10 and a glass window through which laser light can be transmitted is provided on the wall of the first pressure-resistant sealing member 10, or the first lens 15 is fitted on the wall of the first pressure-resistant sealing member 10.
The receiving-end apparatus 2 includes: a battery panel 22, a communication module 23, and an electric energy storage module 24 mounted in the second pressure-resistant sealing member 20, the battery panel 22 being connected to the communication module 23 and the electric energy storage module 24, respectively, the battery panel 22 being arranged opposite to the second lens 21; the second lens 21 is provided in the cavity of the second pressure-resistant sealing member 20 and a glass window through which laser light can be transmitted is provided on the wall of the second pressure-resistant sealing member 20, or the second lens 21 is fitted on the wall of the second pressure-resistant sealing member 20.
Wherein, the first pressure-resistant sealing member 10 and the second pressure-resistant sealing member 20 are both pressure-resistant sealing members made of carbon fiber reinforced plastic. The first lens 15 and the second lens 21 are both convex lenses, and the emitting end of the laser diode 14 and the photocell plate 22 are respectively located at the positions of the light beam collimation focuses of the corresponding convex lenses. The laser diode 14 may alternatively be a blue laser diode with a wavelength of 450 nm. The photovoltaic panel 22 may be made of GaAs semiconductor material. The electric energy storage module 24 can select a 12V lithium battery and is provided with an external charging interface. The transmitting end device 1 and the receiving end device 2 can be produced independently and used in cooperation with each other.
The method for simultaneously realizing underwater charging and communication by utilizing the device comprises the following steps: a signal generator 11 of the transmitting terminal device 1 generates an on-off keying modulated signal, a voltage amplifier 12 amplifies the signal and then sends the amplified signal to a bias driving module 13, and the bias driving module drives a laser diode 14 to emit light; the laser beam emitted by the laser diode 14 enters the seawater channel after being collimated by the first lens 15; the laser beam is transmitted through the seawater channel and then reaches the second lens 21, and is focused on the photocell plate 22 by the second lens; the photovoltaic cell panel 22 converts the received light energy into electric energy, and sends the electric energy to the electric energy storage module 24 for storage; at the same time, the time-varying current generated by the photovoltaic panel 22 carries communication information, which the communication module 23 demodulates for communication purposes.
Specific application examples are as follows:
as shown in fig. 1, a transmitting end device 1 is installed on an Autonomous unmanned underwater vehicle (AUV), and a receiving end device 2 is installed on a sensor for monitoring a water body in a submarine observation network. The AUV needs to perform non-contact charging on the underwater sensor periodically and sends related instruction signals to the sensor. When the device of the invention is in a working state, the transmitting terminal device 1 sends out a light source signal, and the receiving terminal device 2 receives the light source signal and the electric energy supply.
As shown in fig. 2, the transmitting-end apparatus 1 includes a first pressure-resistant sealing member 10, a signal generator 11, a voltage amplifier 12, a bias driving module 13, a laser diode 14, and a first lens 15. The signal generator 11, the voltage amplifier 12, the bias driving module 13, the laser diode 14, and the first lens 15 are connected in sequence and are all disposed in the first pressure-resistant sealing member 10. The signal generator 11 generates an on-off keying (OOK) modulated signal and transmits the signal to the voltage amplifier 12 through a transmission line; the voltage amplifier 12 amplifies the signal of the signal generator 11 to make the voltage reach the working voltage of the laser diode 14; the bias driving module 13 drives the laser diode 14 to emit light; finally, the first lens 15 collimates the laser beam emitted from the LD and then emits the laser beam into the seawater channel.
As shown in fig. 3, the receiving-end device 2 includes a second pressure-resistant sealing member 20, a second lens 21, a photoelectric cell plate 22, a communication module 23, and an electric energy storage module 24. The second lens 21, the photovoltaic panel 22, the communication module 23, and the electric energy storage module 24 are connected in sequence and are all disposed in the second pressure-resistant sealing member 20. After the optical signal reaches the second lens 21 through the transmission of the seawater channel, the second lens 21 focuses the laser beam on the photocell plate 22, and the optical signal is converted into an electrical signal. At this time, the photovoltaic panel 22 not only converts the light energy into the electric energy, but also generates the time-varying current with communication information, the communication module 23 can receive and demodulate the electric signal generated by the photovoltaic panel 22 without extra electric energy supply, so as to achieve the purpose of communication, and meanwhile, the electric energy storage module 24 can store the electric energy through the internal storage battery and provide a charging interface for the outside.
Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (9)
1. A device capable of simultaneously realizing underwater charging and communication comprises a pressure-resistant sealing part with a cavity; the device is characterized by comprising a transmitting end device and a receiving end device which are respectively provided with a pressure-resistant sealing part; wherein,
the transmitting end device comprises: the signal generator, the voltage amplifier, the bias driving module and the laser diode are arranged in the first pressure-resistant sealing part and are sequentially connected, and the emitting end of the laser diode is opposite to the first lens; the first lens is arranged in the cavity of the first pressure-resistant sealing part, and a glass window capable of transmitting laser is arranged on the wall of the first pressure-resistant sealing part, or the first lens is embedded on the wall of the first pressure-resistant sealing part;
the receiving end device includes: the photoelectric cell panel, the communication module and the electric energy storage module are arranged in the second pressure-resistant sealing component, the photoelectric cell panel is respectively connected with the communication module and the electric energy storage module, and the photoelectric cell panel and the second lens are oppositely arranged; the second lens is disposed in the cavity of the second pressure-resistant sealing member and a glass window which can transmit laser light is provided on the wall of the second pressure-resistant sealing member, or the second lens is embedded on the wall of the second pressure-resistant sealing member.
2. The apparatus of claim 1, wherein the first and second pressure seal members are each a pressure seal member made of carbon fiber reinforced plastic.
3. The device of claim 1, wherein the first lens and the second lens are both convex lenses, and the emitting end of the laser diode and the photocell plate are respectively located at the position of the beam collimation focal point of the corresponding convex lens.
4. The apparatus of claim 1, wherein the laser diode is a blue laser diode having a wavelength of 450 nm.
5. The apparatus of claim 1, wherein said panel is a panel made of GaAs semiconductor material.
6. The device of claim 1, wherein the electric energy storage module is a lithium battery and is provided with an external charging interface.
7. A method for simultaneously performing underwater charging and communication using the apparatus of claim 1, comprising the steps of:
a signal generator of the transmitting terminal device generates a communication signal, and a voltage amplifier amplifies the signal and then sends the signal to a bias driving module, so that the bias driving module drives a laser diode to emit light; the laser beam emitted by the laser diode enters the seawater channel after being collimated by the first lens;
the laser beam is transmitted through a seawater channel and then reaches the second lens, and is focused on the photoelectric cell plate by the second lens; the photovoltaic cell panel converts the received light energy into electric energy, and the electric energy is transmitted to the electric energy storage module for storage; meanwhile, the time-varying current generated by the photovoltaic panel carries communication information, and the communication module demodulates the communication information to achieve the purpose of communication.
8. A transmitting terminal device for a device capable of simultaneously realizing underwater charging and communication comprises a first pressure-resistant sealing part with a cavity; it is characterized by also comprising: the signal generator, the voltage amplifier, the bias driving module and the laser diode are arranged in the first pressure-resistant sealing part and are sequentially connected, and the emitting end of the laser diode is opposite to the first lens; the first lens is arranged in the cavity of the first pressure-resistant sealing component, and a glass window capable of transmitting laser is arranged on the wall of the first pressure-resistant sealing component, or the first lens is embedded on the wall of the first pressure-resistant sealing component.
9. A receiving end device for a device capable of simultaneously realizing underwater charging and communication comprises a second pressure-resistant sealing part with a cavity; it is characterized by also comprising: the photoelectric cell panel, the communication module and the electric energy storage module are arranged in the second pressure-resistant sealing component, the photoelectric cell panel is respectively connected with the communication module and the electric energy storage module, and the photoelectric cell panel and the second lens are oppositely arranged; the second lens is disposed in the cavity of the second pressure-resistant sealing member and a glass window which can transmit laser light is provided on the wall of the second pressure-resistant sealing member, or the second lens is embedded on the wall of the second pressure-resistant sealing member.
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| CN201610648594.6A CN106301596A (en) | 2016-08-05 | 2016-08-05 | The devices and methods therefor charging under water with communicating can be realized simultaneously |
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| CN108123753A (en) * | 2017-12-11 | 2018-06-05 | 中国船舶重工集团公司第七0五研究所 | A kind of underwater high-speed radio telecommunicaltion system |
| CN109586803A (en) * | 2018-12-19 | 2019-04-05 | 广东工业大学 | A kind of method, device and equipment of wireless communication energy simultaneous interpretation |
| US10516489B1 (en) | 2018-11-15 | 2019-12-24 | Industrial Technology Research Institute | Underwater wireless communication apparatus and communication method thereof |
| CN110997479A (en) * | 2017-06-22 | 2020-04-10 | 极限深度株式会社 | Adapter, electronic device and method for transporting electronic device |
| CN113328809A (en) * | 2021-06-29 | 2021-08-31 | 北京华夏光谷光电科技有限公司 | Upload two-way communication system of underwater information acquisition platform |
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Application publication date: 20170104 |