CN104237619B - Intelligent general-purpose An Fubiao - Google Patents
Intelligent general-purpose An Fubiao Download PDFInfo
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- CN104237619B CN104237619B CN201410319581.5A CN201410319581A CN104237619B CN 104237619 B CN104237619 B CN 104237619B CN 201410319581 A CN201410319581 A CN 201410319581A CN 104237619 B CN104237619 B CN 104237619B
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Abstract
A kind of intelligence general-purpose An Fubiao, it belongs to advanced manufacturing technology field, and well known 20 kinds of complete set column voltages, ammeter are integrated into a general-purpose panel table.It hits exactly group of four figures pipe and shows measurement result；5, left side red indicating light indicates 5 voltage gears；5, the right yellow indicator lamp indicates 5 current gears；Alternating current-direct current is distinguished in the light on and off of AC indicator lights；If reset key R, determination key Y, voltage key V and electric current key A；The gear set by button, non-resetting will not change.Realize the target of a table multipotency, wide area measurement.The instrument back side is equipped with tri- ports of COM, V/A, 10A and 22OV power input ports.More than 0.4A electric currents are inputted from 10A ports, remaining is all inputted from V/A ports.Instrument is made of microcontroller and AC/DC changeover switch, digital analog converter, analog switch and display driver chip.While measurement result is shown, data are also transferred to host computer, so as to fulfill with the network integration.Figure of abstract is direct current 400V voltage table schemas.
Description
Technical field
The present invention relates to a kind of intelligent general-purpose electrician's panel meter, specifically, being related to a kind of replacing complete set with a table
The new concept intelligent panel instrument and its implementation of column voltage table and complete series ammeter.
Background technology
The most commonly used is voltmeters and ammeter in electrotechnical measurement.Well known three Semi-digitals panel watch series include：Directly
Ampere-voltage meter 200MV, 2V, 20V, 200V, 5 00V；A.C. voltmeter 200MV, 2V, 20V, 200V, 500V；DC ammeter
200uA、2MA、20MA、200MA、5A；Alternating current ammeter 200uA, 2MA, 20MA, 200MA, 5A totally 20 kinds of variety classes and rule
Lattice.This situation not only makes producing and selling, buying, storage, multiple links such as uses very troublesome, but also tens kinds different
Instrument will be realized and be integrated with digital technology, it is difficult to find feasible program.This world-famous puzzle perplexed scientific and technological circle's decades it
Long.Well known voltage, ammeter are still familiar faces in decades, can only naked eyes reading.
The present invention provides an original creation scheme, and known all common voltages, ammeter realization is integrated and intelligent, real
Now as described in " 863 Program " " multi-source, isomer data integration, storage, processing and visualization technique ".
Invention content
In " the advanced manufacturing technology field " of " 863 Program ", save and propose in the 2.6.1 of " intelligence manufacture "：" break through tradition system
System layered structure for industrial requirement, towards wide area observing and controlling, realizes that bottom Internet of Things is merged and integrated to internet seamless." press
According to the requirement of " 863 Program ", it is high and with data communication work(that the present invention designs a kind of simple in structure, powerful, integrated level
The intelligent general-purpose An Fubiao of energy.
The present invention adopts the following technical scheme that realization：A kind of intelligence general-purpose An Fubiao, including：It is connected with input voltage
The current connector that voltage connector is connected with input current；By high input impedance circuit, current sampling resistor respectively with electricity
The analog switching circuit that pressure connector and current connector are connected；The input terminal of analog switching circuit is gated for control to obtain
The microcontroller of voltage or current information to be measured, the data line of the microcontroller are connected with analog-digital converter；For measuring alternating voltage
AC/DC converter, which is connected with analog switch, and output terminal is connected with analog-digital converter；With parallel connection
Four relays that mode is connected, input terminal are connected with V/A (voltage and current) port, output terminal and analog switch and sampling
Resistance is connected；The display circuit and communication interface being connected with microcontroller.
Wherein, resistance RI resistance values are 10M, to improve input impedance；It inputs termination V/ A (voltage and current) port, output
Terminate the common end of analog switch；The resistance value of resistance R1, R2, R3, R4 are followed successively by 1.11M, 101K, 10K, 1K, with R I groups
Into bleeder circuit intrinsic standoff ratio be followed successively by 1/10,1/100,1/1000,1/1000 0.Microcontroller inputs analog switch different address
During code, the measurement gear of 400MV [basic shelves, do not divide] and 4V, 40V, 400v, 1000V are just set successively.
Wherein, the resistance value of current sampling resistor R5, R6, R7, R8 is followed successively by 1K, 100 Ω, 10 Ω, 1 Ω.This four resistance
Common end enter ground, after signal end is connected successively with the output terminal of relay J1, J2, J3, J4, then the port with analog switch
K5, K6, K7, K8 are connected.When microcontroller inputs different address codes, analog switch just sets 400uA, 4MA, 40MA, 400MA
Electric current gear.Relay also gates one therein in an ON state by corresponding simultaneously at this time.The electricity of 400 MA -10A
Stream is directly entered 0.01 Europe resistance without relay from 10A ports.AC/DC converter is connected on the public affairs of analog switch A
Altogether between end and analog switch B, when input signal is exchange, this converter can carry out AC/DC conversion, transformed straight
Stream voltage signal enters analog-digital converter through analog switch B；Direct current signal is from analog switch A common ends directly through analog switch B
Analog-digital converter is given, microcontroller is given by the digital quantity of conversion；Wherein, communication interface is USB interfaces；Wherein, four
LED charactrons form display circuit board, for showing measurement result；Wherein, IC1 and IC2 is two eight bit register chips, single
Piece machine distinguishes the corresponding indicator light of ignition voltage and current gear by the chip；Finally, microcontroller gives transformation result to display
Plate is shown, then sends data to host computer by USB again.
Compared with prior art, the method have the advantages that：
1st, it cracks hard issues in " the advanced manufacturing technology field " of " 863 Program ", the 2.6.1 items that " intelligence manufacture " one saves, content
It is：" legacy system layered structure is broken through, for industrial requirement, towards wide area observing and controlling, realizes bottom Internet of Things to internet seamless
It merges and integrated." present invention fits like a glove with the project demand, so that satisfactory solves this difficult scientific problems.
2nd, it is widely used the present invention and is applicable not only to electrical technology field, and be suitable for science and education, electromechanics, automatically control
Various aspects are all standings of application field.
3rd, highly integrated script is divided into the product of 20 specifications, merges into an integrated instrument now, solves
" 863 Program " propose " multi-source, isomery " analog quantity to digital quantity conversion problem.
4th, powerful general-purpose instrument simple in structure, only there are three input port and four buttons.Once gear is selected,
It is not used without operation, button in operation, complete intelligent operation yet.
5th, the casing of standardization easy for installation, succinct external structure, can be very easy be installed on any of host
Position.
6th, intelligent protection increases intelligent protection function in addition to GPF (General Protection False：Voltage is crossed after range automatically into one grade high；Electricity
The disconnection of range relay is flowed through, is placed in voltage gear；Measured value is more than maximum value (voltage is more than 1000v, and electric current is more than 10A) instrument
Alarm.Perfect protection ensures that instrument safety is run.
7th, the setting of intelligent prompt general intelligence product, set-up procedure are complicated, influence to promote；This product is operated by prompting, and one
Learn will, it is easy to promote.
8th, promote electrical instrument nil signal output well known to intelligence manufacture, therefore intellectual product research and development receive greatly to restrict；
The present invention makes electrical instrument integrate with digital technology, so as to greatly promote the development of intelligence manufacture industry.
9th, the function of 20 pieces of tables of high performance-price ratio script, is satisfactorily replaced by one piece of table, is produced and sold, is stored, using all big
For simplification, overall economic efficiency is very high.
10th, it supports that Internet of Things electrotechnical measurement is ubiquitous, by the discrete instrument of " multi-source, isomery ", upgrades to integration
Standard digital source can ideally be merged by USB port with Internet of Things.
Description of the drawings
Figure 15 is schematic diagram
Fig. 1-14 is two setting citings of the present invention.
Figure 16-17 is the measurement of the present invention and setting procedure figure..
Specific implementation
There are three input ports, i.e. COM, V/A and 10A by intelligent general-purpose An Fubiao.The AC ground of electric signal to be measured or
Direct current negative terminal is all inputted from COM ends, and 400MA -10A current signals are inputted from 10A ports, and aftercurrent, voltage signal are all from V/
A ports input.
The voltage signal inputted from V/A ports, is connected through resistance RI (10M) with the common end of analog switch A, electric current letter
Number it is connected with the input terminal of four relay J1-J4 in parallel, high current (400MA-10A) is directly through 10A ports and resistance
R9 (0.01 Ω) is connected.
Three ports of microcontroller are connected with three address wires of analog switch, to control the gating of K1-K8, K1- K8
Gear layout see attached drawing 15.By setting operation, microcontroller only gate 4V, 40V, 400V, 1000V and 400uA, 4MA,
One grade in 40MA, 400MA；Analog switch contract fully, signal lead directly to gauge internal through RI during 400MV voltage gears；10A current gears
When, sample resistance R9 upper ends are connected with analog switch K6, and instrument real work is at 40MA grades, and measurement data is identical, by microcontroller
Point out current range (10A).In this way, just have 5 DC voltage shelves and 5 DC current shelves, 10 zero frequency spans altogether.
If instrument is set as direct current, signal is directly sent into analog-digital converter by analog switch B；If instrument is set as exchanging,
Then indicator light AC is bright, and analog switch B connects AC/D C AC/DC changeover switch, is entered back into after AC signal is converted to direct current signal
Analog-digital converter.In this way, just forming DC-AC two-use amounts to 20 electric currents, voltage gears.
The electric signal inputted through instrument input port, by the gear that microcontroller is set, by analog input analog-digital converter,
After converted, obtained data are sent to 4 light-emitting diode displays by microcontroller, while again send through USB port data to upper
Machine.
Intelligent An Fubiao uses the standard casing of 42*90*100mm, and instrument front is 40 .56 inches of charactrons, both sides
Respectively 5 LED lights of vertical arrangement, voltage are red, and electric current is yellow.400MV, 4V, 40V, 400V, 1000V are corresponded to respectively
With 400uA, 4MA, 40MA, 400MA, 10A.There is red exchange indicator light AC in the lower left corner.Lower right is tetra- buttons of R, Y, V, A.
Layout is shown in Figure of abstract.
When setting gear, R keys and Y keys can be pressed simultaneously, then first unclamps R keys, and rear to unclamp Y keys, instrument is shown- UA,
Represent that instrument is being inquired：It is selection voltage gearOr current gear(click V keys and select voltage gear, click A keys and select current gear).Point
V keys are hit, select voltage gear.Instrument shows U-dc, represents to confirm DC voltage shelves.V keys, AC- dC checkers are clicked again.When going out
Y keys are clicked during existing dC, indicator light L1 is bright, numeral method U- 01, represents that instrument enters 01 grade of DC voltage.Adopting consecutive click chemical reaction V
Key, gear change between 01-05, and red indicating light is synchronized to move up and be lighted.To select U4 grades (4 00V), as display U-
When 04 and 400V indicator lights are bright, Y keys are clicked, gear is identified, subsequent instrument shows Add0, indicates entry into selection address shelves.Even
It is continuous to click V keys, Add ends position successively 0,1,2,3,4,5,6,7,8,9, change between A, B, C, D, E, F, represent the address of this instrument
Value.This address value comes the data separation of different instrument when more instrument and host computer communicate；(single instrument uses, can
Do not select address value.) after address determines, Y keys are clicked, instrument shows full 0, and indicator light AC goes out, and L4 is bright, represents setting instrument work
Make in 400V grades of direct current.It is stored at this time in relation to state value.Booting next time, instrument are directly entered 400 V grades of work of direct current.Full mistake
Journey diagram is shown in Fig. 1-7.
Similarly, the operation of alternating current shelves is selected, V keys need to be only will click on and be changed to click A keys.Select 10A current gears
When, signal input reconfiguration 10A ports.The gear selecting process diagram of 10A grades of alternating current is shown in Fig. 8-14.
Above description is only the typical case example of the present invention.It is not intended to limit the present invention.In commercialization process
In, all any modification, equivalent and improvement that principle and principle according to the present invention are made should be included in the protection of the present invention
Within the scope of.
400V grades of setting up procedure of direct current：Fig. 1 while R and Y keys are pressed, first pine R keys, then pine Y keys.Instrument is shown- UA,
Ask setting U (voltage) shelves or A (electric current) shelves；Fig. 2, V keys are clicked, selects voltage gear, instrument shows U- dC, indicates entry into straight
Flow voltage gear；Fig. 3, adopting consecutive click chemical reaction V keys, instrument alternately display U-AC and U-dC；Fig. 4, when showing U- dC, click Y keys, choosing
Select DC voltage shelves.Instrument enters 1 grade of DC voltage, and 400MV indicator lights are bright, and for instrument in 1 grade of DC voltage, pilot hits V keys, shelves
Position changes between 01- 05, and indicator light, which synchronizes, to be moved up.400V grades are reached, when showing U- 04, clicks Y keys；Fig. 5, instrument are shown
Add0,400V indicator light are bright, represent voltage gear it has been determined that entering selection address shelves；Fig. 6, V keys are clicked, last position becomes between 0-F
To change, share 16 addresses, when there is Add3, click Y keys, instrument shows full 0, represents instrumentation in 400V grades of DC voltage,
Instrument code NO3, setting data have stored, and instrument is standby；Fig. 7, the state that instrument measurement value is direct current 180.5V.
The step of setting A/AC 10A grades of (alternating current)：
Fig. 8 while R and Y keys are pressed, first pine R keys, then pine Y keys, instrument are shown- UA asks setting U (voltage) shelves or A
(electric current) shelves；Fig. 9, A keys are clicked, selects current gear, instrument shows that A- dC. indicate entry into DC current shelves；Figure 10, continuity point
A keys are hit, instrument alternately displays A-dC and A-AC；Figure 11, when showing A- AC, click Y keys, select alternating current shelves, instrument into
Enter 01 grade of alternating current, exchange indicator light AC is bright, and 400uA indicator lights are bright, and adopting consecutive click chemical reaction A keys, gear changes between 01-05, refers to
Show that lamp synchronizes to move up, when reaching 10A grades, show A- 05, click Y keys；Figure 12, instrument show Add0, represent that current gear is true
Recognize, into address choice shelves；Figure 13, A keys are clicked, last position changes between 0- F, when showing Add4, clicks Y keys, instrument is shown
Full 0, expression instrumentation have been stored in 10A grades of alternating current, instrument code NO4, data, and instrument is standby；Figure 14, electric current from
10A ports and COM port input, measure the state that alternating current is 5.84A.
Claims (4)
1. intelligent general-purpose An Fubiao, which is characterized in that including all input voltages and the common voltage and current of milliampere grade electric current connect
Connect device, the dedicated current connector of ampere grade；By high input impedance circuit, current sampling resistor respectively with voltage connector and
The analog switching circuit that current connector is connected；For control gating analog switching circuit input terminal come obtain each shelves voltage or
The microcontroller of current information, this microcontroller are connected by data line with analog-digital converter, this microcontroller also passes through 2803 and four
Relay for electric current stepping is connected；AC signal first enters back into analog-digital converter through AC/DC converter；Final data
4 Digital sum pipes are sent to by microcontroller to show；20 measure gear and pass through reset key R, determination key Y, voltage key V, electric current key A
It is selected by step, gear storage is carried out by microcontroller, measurement result sends computer to by USB port；Voltage gear passes through one
High impedance input resistance RI, is connected through analog switch with divider resistance R1, R2, R3, R4 successively, divider resistance R1, R2, R3,
R4 one end altogether, and is followed successively by 1/10,1/100,1/1000,1/10000 with the intrinsic standoff ratio of RI, and microcontroller input analog switch is not
During with address code, voltage measurement gear is set successively, and current gear is connected through relay, sample resistance with analog switch, 10A electric currents
The sample resistance of shelves is directly connected without relay with analog switch, and the resistance value of sample resistance R5, R6, R7, R8, R9 are followed successively by 1K
Ω, 100 Ω, 10 Ω, 1 Ω, 0.01 Ω, when microcontroller inputs different address codes, analog switch is just set in relay
One in an ON state, completes the sampling to each shelves current value.
2. intelligent general-purpose An Fubiao according to claim 1, which is characterized in that through reset key R, determination key Y, voltage key V, electricity
It flows key A and sets different voltage, electric current gear, made a check mark with 10 indicator lights, after address determines, Y keys are clicked, at this time in relation to shape
State value is stored, and booting next time, instrument is directly into shelves.
3. intelligent general-purpose An Fubiao according to claim 1, which is characterized in that when range occurred in voltage, instrument is interim certainly
It moves and is switched to high one grade of work, power-off restarting, instrument is still operated in former setting shelves；There is relay during range in V/A grades of electric currents
It disconnects；Instrument is alarmed during V/A grades of super 1000V or 10A grades of super 10A.
4. intelligent general-purpose An Fubiao according to claim 1, which is characterized in that the data of 20 gears automatically by USB port with
Computer communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410319581.5A CN104237619B (en) | 2014-07-07 | 2014-07-07 | Intelligent general-purpose An Fubiao |
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| CN201410319581.5A CN104237619B (en) | 2014-07-07 | 2014-07-07 | Intelligent general-purpose An Fubiao |
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| CN104237619A CN104237619A (en) | 2014-12-24 |
| CN104237619B true CN104237619B (en) | 2018-07-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793049A (en) * | 2015-04-13 | 2015-07-22 | 武汉大学 | Digital power meter |
| CN113268006A (en) * | 2015-04-29 | 2021-08-17 | 武汉振道世纪科技有限公司 | Wide area measurement and control Internet of things intelligent controller |
| CN105004912B (en) * | 2015-06-05 | 2018-08-28 | 武汉振道世纪科技有限公司 | Intelligent multi-source An Fubiao |
| CN107092207A (en) * | 2017-02-28 | 2017-08-25 | 武汉振道世纪科技有限公司 | Intelligent general-purpose senses table |
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