CN102570202B - Underwater equipment interface based on inductive power transmission and wireless local area network (WLAN) signal transmission - Google Patents

Underwater equipment interface based on inductive power transmission and wireless local area network (WLAN) signal transmission Download PDF

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Publication number
CN102570202B
CN102570202B CN 201210063024 CN201210063024A CN102570202B CN 102570202 B CN102570202 B CN 102570202B CN 201210063024 CN201210063024 CN 201210063024 CN 201210063024 A CN201210063024 A CN 201210063024A CN 102570202 B CN102570202 B CN 102570202B
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China
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elementary
conical surface
underwater
cylinder
housings
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CN 201210063024
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CN102570202A (en
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李德骏
何志强
周杰
杨灿军
陈鹰
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The invention discloses an underwater equipment interface based on inductive power transmission and wireless local area network (WLAN) signal transmission. The underwater equipment interface comprises a socket and a plug, wherein the socket and the plug are independently packaged, and are not in direct electrical connection with each other after being jointed, so that the non-contact transmission of electric power and signals can be realized. According to the underwater equipment interface, non-contact underwater power transmission and non-contact underwater signal transmission are combined, the electric power is unidirectionally transmitted from a base station to equipment by using an electromagnetic induction principle, and the WLAN signals are bidirectionally transmitted between the base station and the equipment by using a wireless fidelity (WIFI) technology. Compared with the conventional wet plug connector adopting the direct contact of conductors, the underwater equipment interface has the advantages that: the direct contact of the conductors and complex sealing measures are not required, the conditions of water leakage and electric leakage are well avoided, and the long-term continuous stable running of the underwater electromechanical equipment and normal information interaction between the underwater electromechanical equipment and the underwater base station are well ensured.

Description

Underwater installation interface based on Inductive transmission and the transmission of WLAN signal
Technical field
The present invention relates to a kind ofly meet base station under water and the non-contact type electric energy between electromechanical equipment and signal transmit the general-purpose interface of demand under water.
Technical background
Marine environment is surveyed and marine resources development is hot issue always, the construction of submarine observation network and the use of electromechanical equipment under water make designing and developing of underwater units flourish, electromechanical equipment is for long-term stable operation under water, need the lasting electric power supply in base station under water, and with communicating by letter between base station under water.Yet because water is electric conductor, thus the mode that the transmission of the electric energy at two equipment interface places and signal should not adopt bare exposed conductor directly to contact, as the plug-in connector that wets, the feature limits that it is expensive, the life-span is short its extensive use.Therefore be badly in need of a kind of cheap, the life-span long, underwater installation interface easy to use, realize under water base station and under water the electric energy between electromechanical equipment with signal, transmit.
Summary of the invention
The purpose of this invention is to provide a kind of underwater installation interface based on Inductive transmission and the transmission of WLAN signal, to meet base station and the electric energy between electromechanical equipment and signal transmission demand under water under water.
Underwater installation interface based on Inductive transmission and the transmission of WLAN signal of the present invention, comprise socket and plug;
Socket comprises: the annular seal space consisted of elementary housing and elementary end cap, the conical surface of indent centered by the end face of elementary housing, there is cylinder and primary coil with elementary housing coaxial line in annular seal space, primary coil has conical central hole, be enclosed within on the conical surface of elementary housing indent, the conical surface of primary coil and the conical surface of elementary housing are affixed, one end of cylinder and the conical surface end of elementary housing indent are fixed, the other end device primary antenna bearing of cylinder, be provided with elementary WIFI antenna in cylinder, elementary WIFI antenna is fixed on the primary antenna bearing, primary side covers and is fixed with elementary underwater electrical connector, the end that elementary underwater electrical connector stretches into cavity connects elementary WIFI antenna and primary coil, the other end of elementary underwater electrical connector is connected with elementary watertight cable, several permanent magnets are installed on the conical surface of elementary housing indent, the contact-making surface of elementary housing and elementary end cap is provided with the O RunddichtringO,
Plug comprises: the annular seal space consisted of sub-housings and secondary end cap, the conical surface of evagination centered by the end face of sub-housings, the indent conical surface of this evagination conical surface and elementary housing matches, there is cylinder and secondary coil with the sub-housings coaxial line in annular seal space, secondary coil is tapered, be enclosed within on cylinder, the conical surface of secondary coil and the conical surface of sub-housings are affixed, one end of cylinder and the conical surface end of sub-housings evagination are fixed, the other end device secondary antenna bearing of cylinder, be provided with secondary WIFI antenna in cylinder, secondary WIFI antenna is fixed on the secondary antenna bearing, secondary end covers and is fixed with secondary underwater electrical connector, the end that secondary underwater electrical connector stretches into cavity connects secondary WIFI antenna and secondary coil, the other end of secondary underwater electrical connector is connected with secondary watertight cable, permanent magnet with the socket moderate quatity is installed on the conical surface of sub-housings evagination, the contact-making surface of sub-housings and secondary end cap is provided with the O RunddichtringO.
Above-mentioned elementary housing, elementary end cap, sub-housings and secondary end cap be take fiberglass usually as material is made, and can make magnetic field pass smoothly.
Operation principle: during interfaces, plug and socket relies on the suction docking be installed between the permanent magnet on the elementary housing indent conical surface and the sub-housings evagination conical surface, and the both sides cavity conical surface directly contacts.Base station provides direct current under water, through the primary treatment circuit, inversion is high-frequency alternating current, through elementary underwater electrical connector, send in socket, primary coil is accepted high-frequency alternating current, produces alternating magnetic field, and penetrable elementary cavity arrives the secondary coil in plug, produce induced electromotive force in secondary coil, induced electromotive force is transferred into the secondary treatment circuit by secondary underwater electrical connector, after the rectification of secondary treatment circuit, changes galvanic current into, supplies with electromechanical equipment under water and uses.And the signals of telecommunication such as command signal that base station sends, modulation through the primary treatment circuit, changing electromagnetic wave signal into by the elementary WIFI antenna of socket side again sends, the secondary WIFI connection of antenna of plug side is subject to electromagnetic wave signal and changes the signal of telecommunication into, and the secondary treatment circuit is again by signal of telecommunication demodulation and send electromechanical equipment to; The data that electromechanical equipment gathers under water simultaneously, modulation through the secondary treatment circuit, changing electromagnetic wave signal into by the secondary WIFI antenna of plug side again sends, the elementary WIFI connection of antenna of socket side is subject to electromagnetic wave signal and changes the signal of telecommunication into, and the primary treatment circuit is demodulated into the signal of telecommunication data again and sends base station under water to.So realized unidirectional electric energy transmission from the base station to equipment and WLAN signal transmitted in both directions between base station and equipment.
The transmission of above-mentioned WIFI signal can adopt the 802.11N standard.
Beneficial effect of the present invention:
The present invention is as electromechanical equipment and the interface of base station under water under water, and by way of electromagnetic induction and WIFI technology, the individual packages of socket and plug, can realize the contactless transmission simultaneously of underwater electric energy and signal.Pass through the wet plug-in connector that conductor directly contacts and compare with traditional, without the direct contact of conductor and complicated seal approach, avoided preferably leaking and the generation of the situation of leaking electricity, guaranteed better the long-continued stable operation of electromechanical equipment under water and and normal information interaction between base station under water thereof.And elementary housing and sub-housings joint adopt conical surface design, under the suction of both sides permanent magnet, plug and socket is easy to docking, can guarantee axial alignment, improves the delivery of electrical energy quality.The present invention for base station under water and under water electromechanical equipment provide a kind of cheap, the life-span long, underwater installation interface easy to use, met the demand that submarine observation network is built.
The accompanying drawing explanation
Fig. 1 is based on the underwater installation interface schematic diagram of Inductive transmission and the transmission of WLAN signal.
In figure: 1-level watertight cable, 2-level underwater electrical connector, 3-level end cap, the 4-O RunddichtringO, 5-sub-housings, 6-secondary antenna bearing, the 7-permanent magnet, 8-level WIFI antenna, 9-secondary coil, the 10-permanent magnet, the elementary housing of 11-, 12-primary coil, the elementary WIFI antenna of 13-, 14-primary antenna bearing, 15-O RunddichtringO, the elementary end cap of 16-, the elementary underwater electrical connector of 17-, the elementary watertight cable of 18-.
Fig. 2 is based on the underwater installation Application of Interface schematic diagram of Inductive transmission and the transmission of WLAN signal.
Embodiment
Further illustrate the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1, the underwater installation interface based on Inductive transmission and the transmission of WLAN signal of the present invention, comprise socket and plug.
Socket comprises: the annular seal space consisted of elementary housing 11 and elementary end cap 16, the conical surface of indent centered by the end face of elementary housing 11, there is cylinder and primary coil 12 with elementary housing coaxial line in annular seal space, primary coil 12 has conical central hole, be enclosed within on the conical surface of elementary housing 11 indents, the conical surface of the conical surface of primary coil 12 and elementary housing 11 is affixed, the conical surface end of one end of cylinder and elementary housing 11 indents is fixed, the other end device primary antenna bearing 14 of cylinder, be provided with elementary WIFI antenna 13 in cylinder, elementary WIFI antenna 13 is fixed on primary antenna bearing 14, be fixed with elementary underwater electrical connector 17 on elementary end cap 16, the end that elementary underwater electrical connector 17 stretches into cavity connects elementary WIFI antenna 13 and primary coil 12, the other end of elementary underwater electrical connector 17 is connected with elementary watertight cable 18, several permanent magnets 10 are installed on the conical surface of elementary housing 11 indents, the contact-making surface of elementary housing 11 and elementary end cap 16 is provided with O RunddichtringO 15,
Plug comprises: the annular seal space consisted of sub-housings 5 and secondary end cap 3, the conical surface of evagination centered by the end face of sub-housings 5, the indent conical surface of this evagination conical surface and elementary housing 11 matches, there is cylinder and secondary coil 9 with the sub-housings coaxial line in annular seal space, secondary coil 9 is tapered, be enclosed within on cylinder, the conical surface of the conical surface of secondary coil 9 and sub-housings 5 is affixed, the conical surface end of one end of cylinder and sub-housings 5 evaginations is fixed, the other end device secondary antenna bearing 6 of cylinder, be provided with secondary WIFI antenna 8 in cylinder, secondary WIFI antenna 8 is fixed on secondary antenna bearing 6, be fixed with secondary underwater electrical connector 2 on secondary end cap 3, the end that secondary underwater electrical connector 2 stretches into cavity connects secondary WIFI antenna 8 and secondary coil 9, the other end of secondary underwater electrical connector 2 is connected with secondary watertight cable 1, permanent magnet 7 with the socket moderate quatity is installed on the conical surface of sub-housings 5 evaginations, the contact-making surface of sub-housings 5 and secondary end cap 3 is provided with O RunddichtringO 4.
With reference to Fig. 2, the plug and socket of underwater installation interface in figure based on Inductive transmission and the transmission of WLAN signal of the present invention partly forms, circuit module is realized the function of processing and the conversion of electric energy and signal, comprise primary treatment circuit and secondary treatment circuit two parts, circuit module realizes and controls the contactless transmission of electric energy and signal by the DSP+ARM platform.
The primary treatment main circuit will comprise full-bridge inverter, full bridge driver, DSP(TMS320F2812), ARM(SC2401) and WLAN interface, the secondary treatment main circuit will comprise rectifier, pressurizer, electric current and voltage sampler, DSP(TMS320F2812), ARM(SC2401) and WLAN interface.In the primary treatment circuit, the full-bridge inverter direct current that base station is supplied with under water is converted to high-frequency alternating current, then sends socket to, and DSP controls full bridge driver, and full bridge driver drives full-bridge inverter work.The signals of telecommunication such as command signal that host computer on base station sends under water, through ARM and WLAN interface, modulated and be input in socket.And the signal of telecommunication of socket output is demodulated into data-signal and sends into host computer through ARM and WLAN interface; In the secondary treatment circuit, rectifier is converted to direct current by the induced electromotive force produced in secondary coil, through the pressurizer voltage stabilizing, resupplies the load of electromechanical equipment under water.The data-signal that ethernet terminal on electromechanical equipment sends under water, through ARM and WLAN interface, modulated and be input in plug.And the signal of telecommunication of plug output is through ARM and WLAN interface, is demodulated into the signal of telecommunication such as command signal and sends into ethernet terminal.Thereby circuit module is auxiliary has realized from base station under water unidirectional electric energy transmission and the base station and the WLAN signal transmitted in both directions electromechanical equipment under water under water of electromechanical equipment under water.Sampler gathers the voltage and current information of secondary coil, through DSP, processes, and then by signal circuit, passes to DSP in the primary treatment circuit, so that monitor transmission state and realize closed-loop control.

Claims (2)

1. the underwater installation interface based on Inductive transmission and the transmission of WLAN signal, is characterized in that comprising socket and plug;
Socket comprises: the annular seal space consisted of elementary housing (11) and elementary end cap (16), the conical surface of indent centered by the end face of elementary housing (11), there is cylinder and primary coil (12) with elementary housing coaxial line in annular seal space, primary coil (12) has conical central hole, be enclosed within on the conical surface of elementary housing (11) indent, the conical surface of the conical surface of primary coil (12) and elementary housing (11) is affixed, the conical surface end of one end of cylinder and elementary housing (11) indent is fixed, the other end device primary antenna bearing (14) of cylinder, be provided with elementary WIFI antenna (13) in cylinder, elementary WIFI antenna (13) is fixed on primary antenna bearing (14), be fixed with elementary underwater electrical connector (17) on elementary end cap (16), the end that elementary underwater electrical connector (17) stretches into cavity connects elementary WIFI antenna (13) and primary coil (12), the other end of elementary underwater electrical connector (17) is connected with elementary watertight cable (18), several permanent magnets (10) are installed on the conical surface of elementary housing (11) indent, the contact-making surface of elementary housing (11) and elementary end cap (16) is provided with O RunddichtringO (15),
Plug comprises: the annular seal space consisted of sub-housings (5) and secondary end cap (3), the conical surface of evagination centered by the end face of sub-housings (5), the indent conical surface of this evagination conical surface and elementary housing (11) matches, there is cylinder and secondary coil (9) with the sub-housings coaxial line in annular seal space, secondary coil (9) is tapered, be enclosed within on cylinder, the conical surface of the conical surface of secondary coil (9) and sub-housings (5) is affixed, the conical surface end of one end of cylinder and sub-housings (5) evagination is fixed, the other end device secondary antenna bearing (6) of cylinder, be provided with secondary WIFI antenna (8) in cylinder, secondary WIFI antenna (8) is fixed on secondary antenna bearing (6), be fixed with secondary underwater electrical connector (2) on secondary end cap (3), the end that secondary underwater electrical connector (2) stretches into cavity connects secondary WIFI antenna (8) and secondary coil (9), the other end of secondary underwater electrical connector (2) is connected with secondary watertight cable (1), permanent magnet (7) with the socket moderate quatity is installed on the conical surface of sub-housings (5) evagination, the contact-making surface of sub-housings (5) and secondary end cap (3) is provided with O RunddichtringO (4).
2. the underwater installation interface based on Inductive transmission and the transmission of WLAN signal according to claim 1, is characterized in that elementary housing (11), elementary end cap (16), sub-housings (5) and secondary end cap (3) are made by fiberglass.
CN 201210063024 2012-03-12 2012-03-12 Underwater equipment interface based on inductive power transmission and wireless local area network (WLAN) signal transmission Expired - Fee Related CN102570202B (en)

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CN102882562A (en) * 2012-08-22 2013-01-16 西安交通大学 Directional-magnetic-path-based high-signal-to-noise-ratio non-contact signal transmitting system
CN103972737A (en) * 2013-02-04 2014-08-06 上海蔻林半导体照明有限公司 Magnetic-induction plug socket
CN103972736A (en) * 2013-02-04 2014-08-06 上海蔻林半导体照明有限公司 Electro-magnetic inductive plug and socket combination
NO338395B1 (en) * 2014-11-19 2016-08-15 Geir Olav Gyland Device and method for wireless transmission of power and communication
CN105450265B (en) * 2015-11-10 2018-01-30 浙江大学 Underwater letter is electrically coupled contactless transmitted in both directions connector
CN109106544B (en) * 2018-08-27 2024-04-05 南京涌舟科技有限公司 Medical bag changing mechanism
CN111224287A (en) * 2018-11-26 2020-06-02 中国科学院沈阳自动化研究所 Deep sea underwater docking/separating device and method for submersible
CN109802264B (en) * 2019-01-21 2020-05-22 浙江大学 Photoelectric hybrid bidirectional communication non-contact type wet plugging and unplugging connector
CN110086506B (en) * 2019-05-13 2024-03-12 中国地震局地震预测研究所 Watertight connector
CN112583133A (en) * 2020-11-30 2021-03-30 杭州电子科技大学 Underwater pluggable coupler and coupling method
CN112952434A (en) * 2021-02-01 2021-06-11 舟山美通信息技术有限责任公司 Underwater scientific instrument socket assembly and application thereof
CN114664071B (en) * 2022-03-18 2023-03-28 青岛理工大学 Underwater vehicle remote control system and method based on magnetic sensor

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CN101667778A (en) * 2009-09-30 2010-03-10 浙江大学 Non-contact connecting device for transmitting underwater electric energy
CN202550219U (en) * 2012-03-12 2012-11-21 浙江大学 Inductive power transmission and wireless local area network (WLAN) signal transmission-based underground equipment interface

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