NL2031627A - Main control board of multifunctional on-line water quality monitoring system for fishing boat - Google Patents

Main control board of multifunctional on-line water quality monitoring system for fishing boat Download PDF

Info

Publication number
NL2031627A
NL2031627A NL2031627A NL2031627A NL2031627A NL 2031627 A NL2031627 A NL 2031627A NL 2031627 A NL2031627 A NL 2031627A NL 2031627 A NL2031627 A NL 2031627A NL 2031627 A NL2031627 A NL 2031627A
Authority
NL
Netherlands
Prior art keywords
main control
module
water quality
control board
monitoring system
Prior art date
Application number
NL2031627A
Other languages
Dutch (nl)
Other versions
NL2031627B1 (en
Inventor
Zhao Xinying
Zhu Chencheng
Li Jianyu
Original Assignee
Fishery Machinery & Instrument Res Inst Cafs
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fishery Machinery & Instrument Res Inst Cafs filed Critical Fishery Machinery & Instrument Res Inst Cafs
Publication of NL2031627A publication Critical patent/NL2031627A/en
Application granted granted Critical
Publication of NL2031627B1 publication Critical patent/NL2031627B1/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18Water
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/32Means for protecting converters other than automatic disconnection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Studio Devices (AREA)

Abstract

Disclosed is a main control board for a Hmltifunctional on—line water quality monitoring system. for a fishing boat. The main control board includes a main control chip, a communication module, a light emitting diode (LED) light supplement module, a camera, a water quality sensor unit, a rail motor, an uplink cable, a direct current direct current (DCDC) power supply module and a main control power supply grading module. By means of the main control board, a device can be remotely controlled, and a water quality of each water layer of a fish cabin is monitored and mastered in real time, thereby providing powerful data support for technicians. In addition, the main control board has stable performance and, low power dissipation, and, can. be connected, to various water quality sensors and used in cooperation with different monitoring software, thereby being widely applied to various on—line monitoring platforms.

Description

MAIN CONTROL BOARD OF MULTIFUNCTIONAL ON-LINE WATER QUALITY MONITORING SYSTEM FOR FISHING BOAT
TECHNICAL FIELD The present invention relates to the technical field of water quality detection, and in particular to a main control board of a multifunctional on-line water quality monitoring system for a fishing boat.
BACKGROUND ART The fishing boat often needs to work far away, and therefore, it is necessary to remotely adjust the draft of deep-water cameras and sensors to monitor the water quality environment in full depth. The multifunctional on-line water quality monitoring system for a fishing boat centrally arranges cameras, light emitting di- ode (LED) light supplement lamps, water quality sensors, etc., is a multifunctional intelligent monitoring system that is specially developed for aquaculture fishing boats or live fish carrier pro- jects and is suitable for any fish cabin, can remotely control the draft of the camera and sensor, and detect and analyze the water quality environment in real time in different water depths, there- by providing a scientific and effective basis for whether the fish cabin needs water purification or cleaning. The existing system for detecting water quality is relatively backward, and thus needs to be improved.
SUMMARY The objective of the present invention is to provide a main control board of a multifunctional on-line water quality monitor- ing system for a fishing boat, so as to solve the problem provided in the above background art. In order to achieve the above objective, the present inven- tion provides the following technical solution: the main control board of a multifuncticnal on-line water quality monitoring system for a fishing boat includes a main con-
trol chip, a communication module, a light emitting diode (LED) light supplement module, a camera, a water quality sensor unit, a rail motor, an uplink cable, a direct current direct current (DCDC) power supply module and a main control power supply grading module, where the main control chip is connected to the communica- tion module, the LED light supplement module, the camera and the water quality sensor unit separately, the communication module is further connected to the uplink cable, the uplink cable is further connected to the DCDC power supply module and the rail motor sepa- rately, the DCDC power supply module is further connected to the main control power supply grading module, the LED light supplement module and the camera separately, and the main control power sup- ply grading module is further connected to the water quality sen- sor unit.
As a further technical solution of the present invention, the DCDC power supply module has input voltage of 220 V and output voltage of 24 V.
As a further technical solution of the present invention, the main control power supply grading module has input voltage of 24 V and output voltage of 3.3 V.
As a further technical solution of the present invention, the main control power supply grading module uses TPS5430 as a power supply chip.
As a further technical solution of the present invention, a main control module uses a Nanopi NEO corel.
As a further technical solution of the present invention, the communication module uses a power line carrier module for uplink and downlink communication.
As a further technical solution of the present invention, the main control board further includes a current detection module and a voltage detection module, where the current detection module is used for inputting voltage and current of the system for detec- tion, and the voltage detection module controls the voltage to be 0 V-3.3 V in a voltage division manner, and then inputs the volt- age to an ADS1100 chip of an integrated circuit (IC6), so as to output an inter integrated circuit (IIC) signal to the main con- trol chip.
Compared with the prior art, the present invention has the beneficial effects that by means of the main control board, a de- vice may be remotely controlled, and a water quality of each water layer of a fish cabin is monitored and mastered in real time, thereby providing powerful data support for technicians. In addi- tion, the main control board has stable performance and low power dissipation, and may be connected to various water quality sensors and used in cooperation with different monitoring software, there- by being widely applied to various on-line monitoring platforms.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a hardware block diagram of the present invention. FIG. 2 is a power supply block diagram. FIG. 3 is a schematic diagram of a direct current (DC)-direct current (DC) step-down circuit. FIG. 4 is a schematic diagram of step-down hardware. FIG. 5 is a schematic diagram of a camera. FIG. 6 is a schematic diagram of a communication module. FIG. 7 is a schematic diagram of a main control module. FIG. 8 is a schematic diagram of a voltage and current detec- tion module.
DETAILED DESCRIPTION OF THE EMBODIMENTS The technical solutions in the embodiments of the present in- vention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the embodiments described are merely some rather than all of the embodiments of the present invention. On the basis of the embodiments in the present invention, all other embodiments acquired by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention. With reference to FIGs. 1-8, embodiment 1: a main control board of a multifunctional on-line water quality monitoring system for a fishing boat includes a main control chip, a communication module, a light emitting diode (LED) light supplement module, a camera, a water quality sensor unit, a rail motor, an uplink ca-
ble, a direct current direct current (DCDC) power supply module and a main control power supply grading module, where the main control chip is connected to the communication module, the LED light supplement module, the camera and the water quality sensor unit separately, the communication module is further connected to the uplink cable, the uplink cable is further connected to the DCDC power supply module and the rail motor separately, the DCDC power supply module is further connected to the main control power supply grading module, the LED light supplement module and the camera separately, and the main control power supply grading mod- ule is further connected to the water quality sensor unit.
24 V direct current is used for system power supply, and is supplied to an electronic cabin from a water surface by means of a composite cable, and then the 24 V direct current is supplied to the main control board of the system. The main control board con- verts 24 V into multiple paths of 24 Vv, 12 V, 5 V and 3.3 V to be supplied to modules respectively. A power supply block diagram of the main control board is shown in FIG. 2.
A direct current (DC)-direct current (DC) step-down module has a direct current input range of 18 Vdc-24 Vdc, may output 24 V in a stabilized voltage manner, has power of 200 W and conversion efficiency of 86%, and supplies power to a main control module and the modules.
With regard to power supply conversion of the main control module, the main control module uses a TPS5430 as a power supply chip and may output 3 A current to be supplied to the system for use. The TPS5430 is a pulse width modulation (PWM) converter hav- ing high output current, integrates a low resistance high side N- channel MOSFET, is included on a substrate, and features a high- performance voltage error amplifier on the market, which may pro- vide strict voltage adjustment precision under transient condi- tions, and an undervoltage lockout circuit to prevent startup un- til input voltage reaches 5.5 V, and is internally provided with a slow start circuit to limit surge current, and a voltage feed for- ward circuit to improve transient response. An ENA pin is used, supply current is turned off to drop to 18 pA typical. Other func- tions further include a high-level active enable, over-current limit, over-voltage protection and thermal shutdown. A voltage stabilizing circuit uses a reference circuit provided by a manu- facturer, and is adjusted in combination with requirements of the system, and outputs of power supplies with different voltages are 5 achieved by adjusting feedback resistors R18 and R22. An implemen- tation circuit is as follows in FIG. 3.
3.3 V uses ASM1117-3. 3 V as a voltage stabilizing chip, and as shown in FIG. 4, ASM1117-3.3 V is a forward low-voltage step- down voltage stabilizer, has voltage drop of 1.2 V under current of 1 A, and moreover, has the functions of current limiting and overheating cut-off. 3.3 V is converted by a 5V power supply to supply power to a water quality sensor.
A video monitoring module uses a single network camera, has a pixel of 1080 p, is provided with a high-lumen LED lamp, and may be used in cooperation with the camera to detect a video.
The communication module is shown in FIG. 6, uses a power line carrier module for uplink and downlink communication, is de- signed on the basis of an Atheros main chip, has the characteris- tics of high integration level, small size, etc., and may provide a power line transmission rate of 500 Mbps, and has stable work and reliable performance. A signal directly transmits a data pack- et sent by the main control chip to an uplink computer by means of a cable to be analyzed in a power line carrier manner.
A main controller mainly achieves the functions: 1, acquiring a video of the camera; 2, acquiring data of the water quality sen- sor; 3, acquiring voltage and current input into a main control power supply; 4, outputting a control signal of a rail motor; and 5, data processing interaction. In addition, the main controller may be connected to a 5-use and 5-standby water quality sensor in- terface and may be connected to various sensors.
Embodiment 2: on the basis of embodiment 1, a main control beard of a multifunctional on-line water quality monitoring system for a fishing boat further includes a current detection module and a voltage detection module, where as shown in FIG. 8, the current detection module is used for detecting voltage and current input to the system, such that an uplink computer may conveniently mas- ter a real-time condition of the system, an integrated circuit 4
(IC4) uses an AD8217 chip, and is a high-voltage and high- resolution shunt amplifier, and an integrated circuit 5 (ICH) is a 16-bit self-calibration analog-to-digital converter ADS1100, and may complete data interaction with a main control chip by means of an inter integrated circuit (IIC). In the system, front-end cur- rent is input into the IC4 by means of a 50 milliohm shunt resis- tor, and is input into the IC5 after amplifying a signal, and af- ter receiving the signal, the IC5 converts an analog signal into a digital signal, and the digital signal is transmitted into the main control chip by means of the IIC.
A voltage detection module controls voltage to be 0 V-3.3 V in a voltage division manner, and then inputs the voltage into an ADS1100 chip of an integrated circuit {(IC6), so as to output an IIC signal to the main control chip.
For those skilled in the art, it is apparent that the present invention is not limited to the details of the above exemplary em- bodiments, and the present invention may be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should all be regarded as exemplary and non- limiting. The scope of the present invention is defined by the ap- pended claims rather than the above description, and therefore, it is intended that all changes which fall within the meaning and scope of equivalency of the claims are embraced in the present in- vention. Any reference numeral in the claims should not be con- strued as limiting the related claims.
In addition, it should be understood that although the de- scription is described according to implementations, each imple- mentation does not include only one independent technical solu- tion, the description is for clarity only, and those skilled in the art should take the description as a whole, the technical so- lutions in the various embodiments may be appropriately combined to form other implementations understandable by those skilled in the art.

Claims (7)

CONCLUSIESCONCLUSIONS 1. Hoofdbesturingskaart van een multifunctioneel on-line waterkwa- liteitsbewakingssysteem voor een vissersboot, omvattende een hoofdbesturings-chip, een communicatiemodule, een light emitting diode (LED) lichtsupplementmodule, een camera, een waterkwali- teitssensoreenheid, een railmotor, een uplink-kabel, een gelijk- stroom-gelijkstroom (DCDC) voedingsmodule en een beoordelingsmodu- le voor de hoofdbesturingsvoeding, waarbij de hoofdbesturings-chip afzonderlijk is aangesloten op de communicatiemodule, de LED- lichtsupplementmodule, de camera en de water kwaliteitssensoreen- heid, waarbij de communicatiemodule verder is verbonden met de uplink-kabel, waarbij de uplink-kabel verder afzonderlijk is ver- bonden met de DCDC-voedingsmodule en de railmotor, waarbij de DCDC-voedingsmodule verder afzonderlijk is verbonden met de hoofd- besturingsvoedingsmodule , de LED-lichtsupplementmodule en de ca- mera, en waarbij de hoofdcontrolevoedingsmodule verder is verbon- den met de waterkwaliteitssensoreenheid.A main control board of a multifunctional on-line water quality monitoring system for a fishing boat, comprising a main control chip, a communication module, a light emitting diode (LED) light supplement module, a camera, a water quality sensor unit, a rail motor, an uplink cable, a direct current-to-direct current (DCDC) power supply module and a main control power assessment module, wherein the main control chip is separately connected to the communication module, the LED light supplement module, the camera and the water quality sensor unit, the communication module being further connected to the uplink cable, the uplink cable further being separately connected to the DCDC power module and the rail motor, the DCDC power module being further separately connected to the main control power module, the LED light supplement module, and the mera, and where the main control power module is further connected to the water quality s sensor unit. 2. Hoofdbesturingskaart van een multifunctioneel on-line waterkwa- liteitsbewakingssysteem voor een vissersboot volgens conclusie 1, waarbij de DCDC-voedingsmodule een ingangsspanning van 220 V en een uitgangsspanning van 24 V heeft.The main control board of a multifunctional on-line water quality monitoring system for a fishing boat according to claim 1, wherein the DCDC power module has an input voltage of 220 V and an output voltage of 24 V. 3. Hoofdbesturingskaart van een multifunctioneel on-line waterkwa- liteitsbewakingssysteem voor een vissersboot volgens conclusie 1, waarbij de beoordelingsmodule voor de hoofdbesturingsvoeding een ingangsspanning van 24 V en een uitgangsspanning van 3,3 V heeft.The main control board of a multifunctional on-line water quality monitoring system for a fishing boat according to claim 1, wherein the main control power judging module has an input voltage of 24 V and an output voltage of 3.3 V. 4. Hoofdbesturingskaart van een multifunctioneel on-line waterkwa- liteitsbewakingssysteem voor een vissersboot volgens conclusie 1, waarbij de beoordelingsmodule voor de hoofdbesturingsvoeding TPS5430 gebruikt als een voedings-chip.The main control board of a multifunctional on-line water quality monitoring system for a fishing boat according to claim 1, wherein the main control power supply judgment module uses TPS5430 as a power chip. 5. Hoofdbesturingskaart van een multifunctioneel on-line waterkwa- liteitsbewakingssysteem voor een vissersboot volgens conclusie 1,The main control board of a multifunctional on-line water quality monitoring system for a fishing boat according to claim 1, waarbij een hoofdbesturingsmodule een Nanopi NEO-core2 gebruikt.where a main control module uses a Nanopi NEO core2. 6. Hoofdbesturingskaart van een multifunctioneel on-line waterkwa- liteitsbewakingssysteem voor een vissersboot volgens conclusie 1, waarbij de comunicatiemodule een voedingslijndragermodule ge- bruikt voor uplink en downlink communicatie.The main control board of a multifunctional on-line water quality monitoring system for a fishing boat according to claim 1, wherein the communication module uses a feedline carrier module for uplink and downlink communication. 7. Hoofdbesturingskaart van een multifunctioneel on-line waterkwa- liteitsbewakingssysteem voor een vissersboot volgens conclusie 1, verder omvattende een stroomdetectiemodule en een spanningsdetec- tiemodule, waarbij de stroomdetectiemodule wordt gebruikt voor het invoeren van spanning en stroom van het systeem voor detectie, en de spanningsdetectiemodule de spanning regelt om 0 V tot 3,3 V te zijn op een spanningsdelingsmanier, en vervolgens de spanning in- voert op een ADS1100-chip van een geïntegreerde schakeling 6 (IC6), om een inter geïntegreerde schakeling (IIC) signaal naar de hoofdbesturingschip uit te voeren.The main control board of a multifunctional on-line water quality monitoring system for a fishing boat according to claim 1, further comprising a current detection module and a voltage detection module, the current detection module being used to input voltage and current from the system for detection, and the voltage detection module regulates the voltage to be 0 V to 3.3 V in a voltage division fashion, then inputs the voltage to an ADS1100 chip of an integrated circuit 6 (IC6), to send an inter integrated circuit (IIC) signal to the main control chip to be carried out.
NL2031627A 2021-05-27 2022-04-19 Main control board of multifunctional on-line water quality monitoring system for fishing boat NL2031627B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110583271.4A CN113238019A (en) 2021-05-27 2021-05-27 Main control panel of fishing boat multifunctional water quality online monitoring system

Publications (2)

Publication Number Publication Date
NL2031627A true NL2031627A (en) 2022-06-27
NL2031627B1 NL2031627B1 (en) 2023-09-29

Family

ID=77139350

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2031627A NL2031627B1 (en) 2021-05-27 2022-04-19 Main control board of multifunctional on-line water quality monitoring system for fishing boat

Country Status (2)

Country Link
CN (1) CN113238019A (en)
NL (1) NL2031627B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050038929A (en) * 2003-10-23 2005-04-29 재단법인 포항산업과학연구원 Underwater camera for scanning sea farm and apparatus for scanning sea farm using the same
CN107192801A (en) * 2017-06-05 2017-09-22 三峡大学 Big depth of water section water quality online auto monitoring system and monitoring method
CN207133657U (en) * 2017-09-15 2018-03-23 章志福 Intelligent accurate aquaculture system
CN109738605A (en) * 2019-03-04 2019-05-10 宁波大学 A kind of Portable unmanned water surface movable water monitoring device
CN112124113A (en) * 2020-08-31 2020-12-25 宁波大学 Rail mounted water quality monitoring robot

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203502405U (en) * 2013-09-22 2014-03-26 山东省科学院海洋仪器仪表研究所 Remote-control type underwater robot system for monitoring water quality
CN203623921U (en) * 2013-12-10 2014-06-04 中国水产科学研究院东海水产研究所 Small drifting type buoy for detecting water quality of inland rivers and lakes
CN206420863U (en) * 2017-01-16 2017-08-18 华南农业大学 A kind of long-range water quality detection unmanned boat
CN108107178A (en) * 2018-01-29 2018-06-01 上海海洋大学 A kind of towed water quality detecting device of unmanned boat
CN110057991A (en) * 2019-04-18 2019-07-26 中国水产科学研究院渔业机械仪器研究所 A kind of water environment real-time monitoring system and method based on enclosure culture, net enclosure culture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050038929A (en) * 2003-10-23 2005-04-29 재단법인 포항산업과학연구원 Underwater camera for scanning sea farm and apparatus for scanning sea farm using the same
CN107192801A (en) * 2017-06-05 2017-09-22 三峡大学 Big depth of water section water quality online auto monitoring system and monitoring method
CN207133657U (en) * 2017-09-15 2018-03-23 章志福 Intelligent accurate aquaculture system
CN109738605A (en) * 2019-03-04 2019-05-10 宁波大学 A kind of Portable unmanned water surface movable water monitoring device
CN112124113A (en) * 2020-08-31 2020-12-25 宁波大学 Rail mounted water quality monitoring robot

Also Published As

Publication number Publication date
NL2031627B1 (en) 2023-09-29
CN113238019A (en) 2021-08-10

Similar Documents

Publication Publication Date Title
DE102015107862B4 (en) Method and device for supplying power to components of an LED driver in the dimmed state
US9385702B2 (en) I/O module
EP2547174A3 (en) Illumination light communication device, and illumination apparatus and system including same
EP1851777A4 (en) Systems and methods for distributed series compensation of power lines using passive devices
WO2018107779A1 (en) Led driver circuit
US20120294015A1 (en) Powered Base for a Lamp
CA2571618A1 (en) Method for supplying electrical power to equipment using a battery
NL2031627B1 (en) Main control board of multifunctional on-line water quality monitoring system for fishing boat
US8258716B2 (en) Driving power supply system of an active type LED with multiple channels
US20180339641A1 (en) Lighting circuit and vehicle lamp
US8975830B2 (en) Light emitting system, optical power control device, and control signal module
TWI358690B (en) Light emitting diode driver
CN202975189U (en) Laser light emitting component aging test system
KR102632783B1 (en) Systems and methods for providing power to a tethered aircraft
EP2873560A2 (en) Device for controlling a plurality of light blocks of a motor vehicle
DE102016105513A1 (en) Lighting circuit, luminaire and lighting system
KR101260990B1 (en) Dc power supply apparatus
WO2014199382A3 (en) Laser driver system and method
CN208299199U (en) A kind of Distributed Feedback Laser drive circuit board
ES2030464T3 (en) CURRENT SUPPLY DEVICE WITH AT LEAST ONE ELECTRICAL TOOL CONNECTABLE TO IT THROUGH A UNION CABLE.
US9120578B2 (en) Guidance apparatus of a tanker aircraft
EP3660395A3 (en) Led controller
US9955540B1 (en) Low current LED fixture internal auxiliary power supply
CN214205886U (en) Signal input/output and light source controller
US20180192498A1 (en) Environmental management device, system and method thereof