CN114816642A - MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium - Google Patents

MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium Download PDF

Info

Publication number
CN114816642A
CN114816642A CN202210508901.6A CN202210508901A CN114816642A CN 114816642 A CN114816642 A CN 114816642A CN 202210508901 A CN202210508901 A CN 202210508901A CN 114816642 A CN114816642 A CN 114816642A
Authority
CN
China
Prior art keywords
coil
data
unit
positioning
information
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202210508901.6A
Other languages
Chinese (zh)
Inventor
崔筱曼
张泽润
谭林林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southeast University
Original Assignee
Southeast University
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 Southeast University filed Critical Southeast University
Priority to CN202210508901.6A priority Critical patent/CN114816642A/en
Publication of CN114816642A publication Critical patent/CN114816642A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/451Execution arrangements for user interfaces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/21Design, administration or maintenance of databases
    • G06F16/219Managing data history or versioning
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24Querying
    • G06F16/242Query formulation
    • G06F16/2428Query predicate definition using graphical user interfaces, including menus and forms
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24Querying
    • G06F16/245Query processing
    • G06F16/2458Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
    • G06F16/2474Sequence data queries, e.g. querying versioned data
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24Querying
    • G06F16/248Presentation of query results
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29Geographical information databases
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance

Abstract

The invention discloses a system, a method, equipment and a storage medium for GUI high-precision coil positioning based on MATLAB, relating to the technical field of wireless charging, comprising a positioning information display module, a switch control unit and a system parameter unit, wherein the positioning information display module is used for acquiring data transmitted by a single chip microcomputer and processing the data by utilizing a GUI graphical interface tool, and the system parameter unit utilizes a two-dimensional graph to label and display coil information; the data retrieval module is used for receiving the data collected by the positioning information display module, recording the reference points of the coils, displaying the reference points in a table form, and realizing data storage through the storage unit; the system parameter unit includes: the coil unit and the position unit visually display the coupling degree of the coil through standardized coils and standardized data processing and storage, suggest the efficiency of electric energy transmission, display the transmission process, greatly improve the conversion efficiency of scientific research achievements, and are beneficial to optimization and popularization of a wireless charging technology.

Description

MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium
Technical Field
The invention belongs to the technical field of wireless charging, and particularly relates to a system, a method, equipment and a storage medium for GUI high-precision coil positioning based on MATLAB.
Background
With the development of electric automobile technology, the development of electric automobiles is greatly supported by the government of China because of important roles in accelerating fuel substitution, reducing automobile exhaust emission and guaranteeing energy safety of China. Since the capacity of the electric vehicle mounted on the vehicle is limited, a charging technology for the electric vehicle is becoming a research focus. At present, the charging technology for electric vehicles is mainly divided into two types: wired charging and wireless charging. However, the wired charging technology has many limitations, such as the connection part is easy to damage (aging and leakage), sparks are easy to generate during plugging, potential safety hazards exist, the occupied area is large, manual operation and maintenance are required, and the like. And compare in wired charging, wireless charging has that area is little, convenient nimble, need not plug security high, not influenced by bad weather, the maintenance cost is low, with the electric wire netting interactive ability reinforce, charge advantages such as more intelligent, therefore receive more and more attention.
According to the difference of relay energy forms in the energy transmission process, the wireless power transmission can be divided into: magnetic (field) coupling, electric (field) coupling, electromagnetic radiation (such as solar radiation), and mechanical wave coupling (ultrasound). Currently, magnetic field coupling wireless power transmission is receiving much attention. The energy transfer performance of the wireless charging system of the electric automobile is very sensitive to the position relationship between the primary coil (ground coil) and the secondary coil (vehicle-mounted coil). When the centers of the two are aligned, the system can achieve the highest transmission power and efficiency; when the offset exceeds a certain range, the transmission power and efficiency of the system will be significantly reduced. The positioning method suitable for the auxiliary positioning function of the wireless charging system at present comprises electromagnetic positioning, visual positioning, GPS positioning, laser positioning and the like. The wireless charging system positioning method comprises the following steps of (1) positioning a wireless charging system, wherein the wireless charging system is provided with various algorithms which can be divided into three types: centralized and distributed algorithms, single-hop and multi-hop algorithms, ranging-based algorithms, and non-ranging-based algorithms.
At present, the positioning accuracy of a wireless charging system positioning system is insufficient, and the conversion efficiency is low.
Disclosure of Invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a MATLAB-based GUI high-precision coil positioning system, method, apparatus and storage medium that addresses the problems identified above in the background. The purpose of the invention can be realized by the following technical scheme: MATLAB GUI based high precision coil positioning system comprising:
the positioning information display module is used for acquiring data transmitted by the single chip microcomputer and processing the data by utilizing a GUI graphical interface tool and comprises a switch control unit and a system parameter unit, wherein the system parameter unit marks and displays coil information by utilizing a two-dimensional graph;
the data retrieval module is used for receiving the data collected by the positioning information display module and comprises a data processing unit and a storage unit, wherein the data processing unit displays datum reference point data to realize historical retrieval of a plurality of coils, records the datum reference points of the coils to be displayed in a table form, and realizes data storage through the storage unit;
the system parameter unit includes: the coil unit comprises a vertical distance between coils and the number of reference points.
As a further aspect of the present invention, the memory unit includes:
the setting part is used for achieving multi-azimuth overall observation of the coil position by setting the number of the reference points and selecting the corresponding coil;
the history part is used for inquiring, interrupting and inquiring historical data in the system and realizing updating or re-measurement of the coil;
the storage part is used for realizing the review and analysis of the later information by storing the data in time;
the data in the storage unit can be displayed on the table display unit intuitively through the coil button.
As a further scheme of the invention, the working state of the system is provided with three types of closing, normal and abnormal, and information is displayed by light signals with different colors respectively; the light signal display state is that red light is displayed when the lamp is turned off, green light is normally displayed, and yellow light is abnormally displayed.
As a further scheme of the invention, the two-dimensional graph marking of the system parameter unit simplifies the models of the receiving coil and the sending coil into two rectangles with different sizes by using coordinates and grids; the size and the position of a lower reference coil are displayed on an interface, gray graph display is utilized, real-time position information of an upper measured coil is displayed by a red graph, the center point of the reference coil is marked by a circle, the coordinates are set as original point coordinates all the time, the center point of the measured coil is marked by a solid point, and the coordinates change along with the deviation of the two coordinates.
As a further aspect of the present invention, in the position unit, the abscissa, the ordinate, and the angle difference of the coil deviation are displayed in real time by the slider, thereby observing the change process of the numerical value.
A positioning method based on an MATLAB GUI high-precision coil specifically comprises the following steps:
s1, initializing a coil positioning system: opening a corresponding upper computer, starting serial port communication, distributing a UI thread by a real-time operating system, activating UI beats, starting data initialization by a GUI frame, and preparing for entering an interface by state monitoring;
s2, clicking 'open system' to start positioning on the positioning information interface;
s3, receiving hardware information through a serial port, timely displaying the hardware information on a display interface of the high-precision coil positioning system, and refreshing data;
s4, selecting a coil number to change a benchmark reference point on a data information interface, and realizing multi-surface and all-dimensional observation of the position of the coil;
and S5, processing data, and viewing, changing and recording history information by setting a reference point, and querying, storing and deleting history.
As a further aspect of the present invention, in S5, the query and save of the history data are presented in the state of a table file.
An apparatus having a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: and realizing the steps of the positioning method based on the MATLAB GUI high-precision coil.
A storage medium storing machine executable instructions that, when invoked and executed by a processor, cause the processor to: and realizing the steps of the positioning method based on the MATLAB GUI high-precision coil.
The invention has the beneficial effects that: according to the invention, through the standardized coil and the standardized data processing and storage, the coupling degree of the coil is visually displayed, the efficiency of electric energy transmission is implied, the transmission process is displayed, the efficiency of scientific research result conversion can be greatly improved, and the optimization and popularization of a wireless charging technology are facilitated.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is an initial diagram of a positioning information interface corresponding to a closed state according to the present invention;
FIG. 2 is an initial diagram of a data information interface corresponding to a normal state of the present invention;
FIG. 3 is a flow chart of the operation of the positioning system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, based on the MATLAB GUI high-precision coil positioning system, the positioning information unit processes data transmitted from the upper computer through the GUI graphical interface, so as to realize the function of positioning information, display the working state of the system, change the system state, including opening and closing the system, displaying system parameters, displaying a reference position and a current position, and visually displaying the current position state, and labeling and displaying coil information including the shape, size and state of the coil by using a two-dimensional graph; the data information unit displays datum reference point data, realizes the historical retrieval function of at most four coils, records the datum reference points of all the coils, displays the datum reference points through a table and realizes the data function of the current balance coil; the window can display the historical data of a plurality of coils, and inquire, empty and store the historical data;
wherein the system parameter unit includes: the coil unit comprises a transmitting coil model and a receiving coil model; and the position unit comprises the vertical distance between the coils and the number of the reference points.
Wherein the system current balance coil data functional unit comprises: the setting part is used for achieving multi-azimuth overall observation of the coil position by setting the number of the reference points and selecting the corresponding coil; the history part can inquire the history data and interrupt the inquiry at any time, and meanwhile, the history data in the system can be emptied, so that the coil can be updated or measured again; and the storage part is used for realizing the review and analysis of the later information by storing the data in time.
As shown in fig. 3, the MATLAB GUI-based high-precision coil positioning method specifically includes the following steps:
s1, initializing a coil positioning system: opening a PC (personal computer) end corresponding to a serial port communication upper computer, opening serial port communication, opening a corresponding serial port, allocating a UI (user interface) thread by a real-time operating system, activating a UI beat, starting data initialization by a GUI (graphical user interface) frame, entering an initialization state, and preparing for entering an interface by state monitoring;
s2, clicking 'open system' to start positioning on the positioning information interface; observing that the starting button is grayed, clicking again to lose efficacy, and simultaneously observing that the function of the closing button is started, the normal state lamp is lighted up, and the abnormal and closed state lamps are extinguished; clicking a 'closing system', recovering the initial state of the positioning system, turning on a lamp in the closing state, turning off a lamp in the abnormal and normal states, temporarily disabling the closing function, and enabling the opening function again; clicking the 'open system' again to enable the system to enter normal operation;
s3, receiving hardware information through a serial port, displaying the hardware information on a display interface of the high-precision coil positioning system in time, and refreshing data; observing the type of a sending coil, the type of a receiving coil, the distance between the sending coil and the receiving coil and the number of reference points in a corresponding frame, and simultaneously, changing the positions of two coils in a coordinate system, shifting a red coil and changing a corresponding coordinate value;
s4, selecting coil numbers on a data information interface to realize multi-surface and all-directional observation of the coil positions;
and S5, processing data, and viewing, changing and recording history information by setting a reference point, and querying, storing and deleting history.
In S5, the search and storage of the history data are performed using a fixed-position table file.
In an example, the system working state comprises closing, normal and abnormal, and information is displayed through light signals with different colors respectively; and turning off red light, normally displaying green light and abnormally displaying yellow signals.
The two-dimensional graph marking display unit simplifies the models of the receiving coil and the sending coil into two rectangles with different sizes by using coordinates and grids; the size and the position of a lower large coil (a reference coil) are displayed on an interface, a gray graph is used for displaying, and real-time position information of an upper small coil (a detected coil) is used for displaying by a red graph; the center point of the reference coil is marked by a circle, and the coordinate is always set as the origin coordinate; the center point of the coil to be measured is marked by a solid point, and the coordinate changes along with the deviation of the center point and the solid point.
In the current position state unit, the horizontal coordinate, the vertical coordinate and the angle difference of the coil deviation are displayed in real time through the sliding block, so that the change process of the numerical value is observed.
An apparatus having a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: and realizing the steps of the positioning method based on the MATLAB GUI high-precision coil.
A storage medium storing machine executable instructions that, when invoked and executed by a processor, cause the processor to: and realizing the steps of the positioning method based on the MATLAB GUI high-precision coil.
It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the spirit and scope of the invention, and any equivalents thereto, such as those skilled in the art, are intended to be embraced therein.
1. A system for MATLAB GUI based high precision coil positioning, comprising:
the positioning information display module is used for collecting data transmitted by the single chip microcomputer through serial port communication and processing the data by utilizing a GUI (graphical user interface) graphic interface, so that the function of positioning information display can be realized, and the positioning information display module specifically comprises a switching system, a system parameter unit, a reference position current position data display and a coil position graphical state, namely a two-dimensional graph is used for marking and displaying coil information, including the shape, size and state of a coil;
the data retrieval module is used for displaying the datum reference point data, realizing the historical retrieval function of a plurality of coils, recording the datum reference point of each coil, displaying the datum reference point through a table and realizing the storage function; the window can display the historical data of a plurality of coils, and inquire, empty and store the historical data; the system specifically comprises a storage unit and a table display unit;
the system parameter unit includes:
the coil unit comprises a transmitting coil model and a receiving coil model;
a position unit including a vertical distance between the coils and the number of reference points;
the system parameter unit is positioned in the positioning information display module, receives and displays data communicated by the serial port, and can realize data storage and lookup through the storage and retrieval functions of the data retrieval module;
the system storage unit includes:
the setting part is used for achieving multi-azimuth overall observation of the coil position by setting the number of the reference points and selecting the corresponding coil;
the history part can inquire the history data and interrupt the inquiry at any time, and meanwhile, the history data in the system can be emptied, so that the coil can be updated or measured again;
the storage part is used for realizing the review and analysis of the later information by storing the data in time;
the data in the storage unit can be displayed on the table display unit intuitively through the coil button.

Claims (9)

1. A system for MATLAB GUI based high precision coil positioning, comprising:
the positioning information display module is used for acquiring data transmitted by the single chip microcomputer and processing the data by utilizing a GUI graphical interface tool and comprises a switch control unit and a system parameter unit, wherein the system parameter unit marks and displays coil information by utilizing a two-dimensional graph;
the data retrieval module is used for receiving the data collected by the positioning information display module and comprises a data processing unit and a storage unit, wherein the data processing unit displays datum reference point data to realize historical retrieval of a plurality of coils, records the datum reference points of the coils to be displayed in a table form, and realizes data storage through the storage unit;
the system parameter unit includes: the coil unit comprises a vertical distance between coils and the number of reference points.
2. The MATLAB GUI high accuracy coil positioning system of claim 1, wherein: the memory cell includes:
the setting part is used for achieving multi-azimuth overall observation of the coil position by setting the number of the reference points and selecting the corresponding coil;
the history part is used for inquiring, interrupting and inquiring historical data in the system and realizing updating or re-measurement of the coil;
the storage part is used for realizing the review and analysis of the later information by storing the data in time;
the data in the storage unit can be displayed on the table display unit intuitively through the coil button.
3. The MATLAB GUI high accuracy coil positioning system of claim 2, wherein: the working state of the system is provided with three types of closing, normal and abnormal, and information is displayed through light signals with different colors respectively; the light signal display state is that red light is displayed when the lamp is turned off, green light is normally displayed, and yellow light is abnormally displayed.
4. The MATLAB GUI-based high precision coil positioning system of claim 3, wherein: marking two-dimensional graphs of the system parameter unit, and simplifying models of a receiving coil and a sending coil into two rectangles with different sizes by using coordinates and grids; the size and the position of a lower reference coil are displayed on an interface, gray graph display is utilized, real-time position information of an upper measured coil is displayed by a red graph, the center point of the reference coil is marked by a circle, the coordinates are set as original point coordinates all the time, the center point of the measured coil is marked by a solid point, and the coordinates change along with the deviation of the two coordinates.
5. The MATLAB GUI-based high precision coil positioning system of claim 4, wherein: in the position unit, the horizontal coordinate, the vertical coordinate and the angle difference of the coil deviation are displayed in real time through the sliding block, so that the change process of the numerical value is observed.
6. A positioning method using a MATLAB GUI high accuracy coil positioning system as claimed in claim 5, comprising the following steps:
s1, initializing a coil positioning system: opening a corresponding upper computer, starting serial port communication, distributing a UI thread by a real-time operating system, activating a UI beat, starting data initialization by a GUI frame, and preparing a state monitoring to enter an interface;
s2, clicking 'open system' to start positioning on the positioning information interface;
s3, receiving hardware information through a serial port, displaying the hardware information on a display interface of the high-precision coil positioning system in time, and refreshing data;
s4, selecting a coil number to change a benchmark reference point on a data information interface, and realizing multi-surface and all-dimensional observation of the position of the coil;
and S5, processing data, and viewing, changing and recording history information by setting a reference point, and querying, storing and deleting history.
7. The MATLAB GUI high precision coil-based positioning method of claim 6, wherein: in S5, the query and save of the history data are presented in the state of the form file.
8. A device having a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: -carrying out the method steps of any one of claims 6 to 7.
9. A storage medium having stored thereon machine-executable instructions that, when invoked and executed by a processor, cause the processor to: -carrying out the method steps of any one of claims 6 to 7.
CN202210508901.6A 2022-05-10 2022-05-10 MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium Pending CN114816642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210508901.6A CN114816642A (en) 2022-05-10 2022-05-10 MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210508901.6A CN114816642A (en) 2022-05-10 2022-05-10 MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium

Publications (1)

Publication Number Publication Date
CN114816642A true CN114816642A (en) 2022-07-29

Family

ID=82513789

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210508901.6A Pending CN114816642A (en) 2022-05-10 2022-05-10 MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium

Country Status (1)

Country Link
CN (1) CN114816642A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110462967A (en) * 2017-01-23 2019-11-15 耐克创新有限合伙公司 Wireless charging system with multi-coil scanning
CN113352923A (en) * 2021-07-14 2021-09-07 国家电网有限公司 Coil alignment method of electric vehicle wireless charging system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110462967A (en) * 2017-01-23 2019-11-15 耐克创新有限合伙公司 Wireless charging system with multi-coil scanning
CN113612317A (en) * 2017-01-23 2021-11-05 耐克创新有限合伙公司 Wireless charging system with multi-coil scanning
CN113352923A (en) * 2021-07-14 2021-09-07 国家电网有限公司 Coil alignment method of electric vehicle wireless charging system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
章晨: "基于磁传感的电动汽车无线充电线圈高精度对准关键技术研究", 中国优秀硕士学位论文全文数据库, pages 1 - 59 *

Similar Documents

Publication Publication Date Title
CN204270126U (en) A kind of family roof photovoltaic stratification management system
CN201903502U (en) SF6 gas laser imager
CN208569321U (en) Intelligent controller, intelligent terminal and management system
CN105243811A (en) Lithium ion energy storage battery pack management system based on Beidou short message communication
CN114816642A (en) MATLAB GUI-based high-precision coil positioning system, method, equipment and storage medium
CN204244348U (en) A kind of Novel rural product collector
US20220307985A1 (en) Molecular probe-based safety prewarning and fault location system for electrochemical energy storage station
CN204422764U (en) A kind of low-power consumption field unattended radiation monitoring system
CN204924455U (en) Photovoltaic power supply temperature transmitter based on WIA -PA communication
CN207234490U (en) A kind of multifunctional vehicle mounted charging of electric automobile and control device
CN103166273A (en) Storage battery charge-discharge process automatic monitoring and controlling system
CN214381426U (en) Integrated control base station based on 5G communication
CN103699088B (en) A kind of base station oil engine dispatching management information system based on dynamic environment monitoring and method
CN214798046U (en) Be applied to smart jack's that electric bicycle charges ten way control panels
CN113729341A (en) Accurate positioning terminal of workman based on housing construction engineering construction project
CN210346055U (en) Remote control type refrigeration house system with multiple refrigeration units
CN102923012A (en) Battery information sensing system and method
CN208646523U (en) A kind of new automobile tire pressure monitoring system
CN211452447U (en) Environmental monitoring and protecting system for outdoor equipment
CN204694623U (en) A kind of plant soil nutrient device for quick testing
CN111654114A (en) In-cabinet environment monitoring system and intelligent terminal cabinet
CN110208877A (en) A kind of hand-held atmospherium, weather station
CN216248131U (en) Current detection device
CN209841935U (en) Intelligence ammeter case based on NB-IOT
CN206781448U (en) tire pressure monitoring display with Bluetooth function

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination