CN108510723A - Volt ampere meter and data-sharing systems - Google Patents
Volt ampere meter and data-sharing systems Download PDFInfo
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- CN108510723A CN108510723A CN201810508527.3A CN201810508527A CN108510723A CN 108510723 A CN108510723 A CN 108510723A CN 201810508527 A CN201810508527 A CN 201810508527A CN 108510723 A CN108510723 A CN 108510723A
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- 238000012545 processing Methods 0.000 claims abstract description 51
- 238000004891 communication Methods 0.000 claims abstract description 43
- 238000005259 measurement Methods 0.000 claims abstract description 33
- 238000004458 analytical method Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 17
- 238000007405 data analysis Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 21
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000013500 data storage Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000000819 phase cycle Methods 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of volt ampere meter and data-sharing systems.The volt ampere meter includes：Measurement module, signal processing module and communication module；The measurement module carries out communication with the signal processing module and connect；The signal processing module is connected to the server set on backstage by the communication module；After the measurement module is used to measure the electrical quantity of volt ampere meter measurement point, the electrical quantity is sent to signal processing module；The signal processing module calculates electrical data according to the electrical quantity that the measurement module is sent, and the electrical data is uploaded to the server by the communication module.Above-mentioned volt ampere meter, realize it is synchronous the measurement data that volt ampere meter measurement obtains be uploaded to network share, solve the problems, such as remotely to obtain that volt ampere meter test data real-time is low, to improve the utilization rate and the efficiency of management of volt ampere meter test data.
Description
Technical field
The present invention relates to electric instrument fields, more particularly to a kind of volt ampere meter and data-sharing systems.
Background technology
Volt ampere meter is the instrument of the phase between being used to measure two voltages in electrotechnics, between two electric currents between voltage and current.
The result data that traditional volt ampere meter is tested can only be locally displayed, and if desired remotely obtain test data, then
It needs the test result test data of volt ampere meter is manually uploaded to computer by interfaces such as USB, 232, passes through computer
Realize that data network is shared.But this mode cannot directly share the test data of volt ampere meter to online so that network is total
The test result enjoyed is synchronous with the test result that volt ampere meter is instant, to cause data analysis accuracy rate low.
Invention content
Based on this, it is necessary to the problem of for cannot directly share the test data of volt ampere meter to network, provide one kind
Volt ampere meter and data-sharing systems.
A kind of volt ampere meter, including：Measurement module, signal processing module and communication module；The measurement module and the letter
Number processing module carries out communication connection；The signal processing module is connected to the service set on backstage by the communication module
Device；
After the measurement module is used to measure the electrical quantity of volt ampere meter measurement point, the electrical quantity is sent at signal
Manage module；The electrical quantity that the signal processing module is sent according to the measurement module calculates electrical data, and by the electricity
Tolerance data are sent to communication module；The electrical data that the signal processing module is sent is uploaded to institute by the communication module
State server.
The volt ampere meter in one of the embodiments, further includes display device：At the display device and the signal
Manage module communication connection；It, will be described electrical after the display device receives the electrical data that the signal processing module is sent
Amount data are shown.
The volt ampere meter in one of the embodiments, further includes alarm device；At the alarm device and the signal
Manage module communication connection；It, will be described after the alarm device is used to receive the electrical data that the signal processing module is sent
Electrical data is compared with the threshold value of setting；When the electrical data is more than the threshold value, then outputting alarm
Prompt.
The volt ampere meter in one of the embodiments, further includes processor and memory.
The electrical data includes in one of the embodiments,：Three-phase voltage, phase, power factor, has electric current
Work(power, reactive power and frequency.
The form that the electrical data is shown is included by the display device in one of the embodiments,：Table
Lattice are shown, vectogram is shown and curve graph is shown.
The communication module includes 4G communication modules in one of the embodiments,.
A kind of data-sharing systems, including above-mentioned volt ampere meter, server and terminal；The volt ampere meter and the server into
Row network connection；The server carries out network connection with the terminal；
After the volt ampere meter detection electrical data, the electrical data is sent to by the service by communication module
Device；
After the server receives the electrical data of the volt ampere meter sender, the electrical data is solved
Data Detection report after generating Data Detection report, is sent to the terminal by analysis；
The terminal shows the Data Detection received report.
The data-sharing systems in one of the embodiments, further include high in the clouds platform；The high in the clouds platform with it is described
Server carries out network connection；The high in the clouds platform is stored the electrical data that the server is sent is obtained.
The Data Detection report includes that electrical data is shown in one of the embodiments, historical data analysis report
It accuses, user power utilization is accustomed to analysis report.
Above-mentioned volt ampere meter and data-sharing systems are tested by measurement module after obtaining the electrical quantity of measurement point first, will
The electrical quantity of acquisition is sent to signal processing module, after electrical data then is calculated by signal processing module, finally
Electrical data is uploaded to network by communication module to share, realizes the synchronous measurement number for obtaining volt ampere meter measurement
Shared according to network is uploaded to, solve the problems, such as remotely to obtain volt ampere meter test data real-time it is low, to improve volt-ampere
The utilization rate and the efficiency of management of table test data.
Description of the drawings
Fig. 1 is the structural schematic diagram of an embodiment volt ampere meter；
Fig. 2 is the structural schematic diagram of another embodiment volt ampere meter；
Fig. 3 is the structural schematic diagram of another embodiment volt ampere meter；
Fig. 4 is the structural schematic diagram of another embodiment volt ampere meter；
Fig. 5 is the structural schematic diagram of an embodiment data-sharing systems；
Fig. 6 is the structural schematic diagram of another embodiment data-sharing systems；
Fig. 7 is the structural schematic diagram of an embodiment three-phase phase volt ampere meter.
Specific implementation mode
It is below in conjunction with the accompanying drawings and preferably real further to illustrate the effect of the technological means and acquirement of the invention taken
Example is applied, to the technical solution of the embodiment of the present invention, clear and complete description is carried out by taking three-phase phase volt ampere meter 10 as an example.
As shown in FIG. 1, FIG. 1 is the structural schematic diagrams of an embodiment volt ampere meter, including：Measurement module 110, signal processing mould
Block 120 and communication module 130；The measurement module 110 carries out communication with the signal processing module 120 and connect；The signal
Processing module 120 is connected to the server 20 set on backstage by the communication module 130；The measurement module 110 is for surveying
After the electrical quantity for measuring 10 measurement point of volt ampere meter, the electrical quantity is sent to signal processing module 120；The signal processing mould
The electrical quantity that block 120 is sent according to the measurement module 110 calculates electrical data, and by the communication module 130 by institute
It states electrical data and is uploaded to the server 20.
Wherein, electrical quantity indicate in electric system directly with the relevant parameter of electricity, such as voltage, electric current, capacitance and frequency
Deng；Electrical data includes voltage effective value, current effective value, frequency, phase, power factor；The positive and negative zero sequence of voltage and current point
Amount, voltage unbalance factor, phase sequence；Voltage and current harmonic wave, total harmonic distortion factor and each phase active power, reactive power, three-phase
Total active power etc..After the measurement module 110 of volt ampere meter 10 is used for the electrical quantity in Acquisition Circuit, electrical quantity is sent to immediately
Signal processing module 120 makes signal processing module 120 according to the electrical quantity of acquisition, calculates electrical data, and by communicating mould
Block 130 is in real time by electrical data network share to server 20 so that the electrical data that volt ampere meter 10 measures can synchronize
It is uploaded to network.
Above-mentioned volt ampere meter 10, after testing the electrical quantity of measurement point by the measurement module 110 of volt ampere meter 10, by electrical quantity
It is sent to signal processing module 120；Then after calculating electrical data by signal processing module 120, pass through communication module 130
Electrical data is uploaded to server 20, realize it is synchronous by volt ampere meter 10 measure obtained measurement data be uploaded to network into
Row is shared, to improve the utilization rate and the efficiency of management of 10 test data of volt ampere meter, solves the long-range volt ampere meter 10 that obtains and tests
The low problem of real-time property.
The volt ampere meter 10 further includes processor 140 and memory 150 in one of the embodiments,.As shown in Fig. 2,
Processor 140 and memory 150 are by running the embedded OS built in volt ampere meter 10,10 whole fortune of manipulation volt ampere meter
Row.
The volt ampere meter 10 further includes display device 160 in one of the embodiments,；As shown in figure 3, the display dress
160 are set to connect with the communication of the signal processing module 120；The display device 160 receives the transmission of the signal processing module 120
Electrical data after, the electrical data is locally displayed.
Wherein, the display device 160 in volt ampere meter 10 directly carries out communication with signal processing module 120 and connect, at signal
Electrical data is calculated in reason module 120, electrical data is sent to display device 160 immediately so that display device 160
120 electrical data of signal processing module is locally displayed for synchronization, to quickly that the electrical data of test is intuitive
Displaying.
Preferably, the display device 160 is liquid crystal display, and volt ampere meter 10 is by liquid crystal display, respectively according to electricity
The type of tolerance data is shown each electrical data in the form of table, vectogram or curve graph.In addition, aobvious
The content of 160 liquid crystal display device 160 of showing device display further includes the analysis result of history electrical data.
The volt ampere meter 10 further includes alarm device 170 in one of the embodiments,；As shown in figure 4, the alarm dress
170 are set to connect with the communication of the signal processing module 120；160 alarm device 170 of the display device receives the signal processing
After the electrical data that module 120 is sent, the electrical data is compared with the threshold value of setting；When the electrical quantity
When data are more than the threshold value, then outputting alarm prompt.Wherein, each electrical data has the corresponding thresholding of setting
Value, after alarm device 170 receives the electrical data of the transmission of signal processing module 120, with i.e. by electrical data with it is pre-
The threshold value deposited compares, and is detected, if alarm device 170 detects that any electrical data is more than threshold value, sends out
Warning reminding information is to arouse attention.
Based on above-described embodiment, the present invention also provides a kind of data-sharing systems, as shown in figure 5, the data sharing system
System includes volt ampere meter 10, server 20 and terminal 30；The volt ampere meter 10 carries out network connection with the server 20；The clothes
Business device 20 carries out network connection with the terminal 30；After the volt ampere meter 10 detects electrical data, pass through built-in communication module
The electrical data is sent to the server 20 by 130；The server 20 receives 10 sender's of the volt ampere meter
After electrical data, the electrical data is parsed, generates Data Detection report, and the Data Detection is reported and is sent out
It send to the terminal 30；The terminal 30, which reports the Data Detection received, carries out result displaying.
The volt ampere meter 10 includes：Measurement module 110, signal processing module 120, processor 140, memory 150, communication
Module 130, alarm device 170 and display device 160.Measurement module 110 carries out communication with signal processing module 120 and connect；Institute
It states signal processing module 120 and is connected to server 20 set on backstage by the communication module 130；Alarm device 170 and aobvious
Showing device 160 directly carries out communication with signal processing module 120 and connect.
Wherein, measurement module 110 is for the electrical quantity in Acquisition Circuit, such as voltage, electric current, capacitance and frequency.Signal
Processing module 120 is used to, according to the electrical quantity of acquisition, calculate electrical data, as voltage effective value, current effective value, frequency,
Phase, power factor；The positive and negative zero-sequence component of voltage and current, voltage unbalance factor, three-phase phase-sequence；It is three-phase voltage current harmonic wave, total
Percent harmonic distortion and each phase active power, reactive power, the total active power of three-phase and reactive power etc..Embeded processor
140 and data storage 150 be used to run embedded OS built in volt ampere meter 10, to manipulate the entirety of volt ampere meter 10
Operation operation.Communication module 130 is used to electrical data being sent to server 20 to realize that data network is shared.It is communicating
Display device 160 described in module 130 is used in the form of table, vectogram and curve graph, by each electrical data and is gone through
The analysis result of the electrical data of history is shown.After the server 20 receives the electrical data that volt ampere meter 10 is sent,
Electrical data is subjected to storage preservation, and analyzing processing is carried out to the electrical data of acquisition.Server 20 is to electrical quantity number
Include according to the content of analysis：According to the specification criterion of setting, the electrical data of historical storage is analyzed, is gone through to generate
History data analysis report, frequency analysis report and user power utilization custom analysis report etc., and by the historical data analysis report of generation
Announcement, frequency analysis report and user power utilization analysis report etc. are sent to terminal 30.
In general, the terminal 30 is mobile terminal 30, terminal 30 obtains volt ampere meter 10 by server 20 and sends in real time
Electrical data after, electrical data is shown.In addition terminal 30 can be serviced according to the actual demand of user by obtaining
Historical data analysis report, frequency analysis report and the user power utilization custom analysis report that device 20 is sent are shown with different respectively
Show that form carries out simple and clear display, such as table is shown, vectogram is shown, curve is shown and harmonic wave graphical display, to
Greatly strengthen the interactive means of data.
The data-sharing systems further include in one of the embodiments,：High in the clouds platform；The high in the clouds platform with it is described
Server 20 carries out network connection；The high in the clouds platform is deposited the electrical data that the server 20 is sent is obtained
Storage.The electrical data that the test of 10 history of a large amount of volt ampere meters is stored on the platform of high in the clouds, according to big data analysis method, to storage
The electrical data of history test is analyzed, and the variation dynamic of the electrical data of the test of volt ampere meter 10 is obtained, so as to
According to the variation of electrical data dynamic, the equipment state of volt ampere meter 10 is assessed, with the operating condition of real-time monitoring equipment.Separately
Outside, can also stored electrical data remotely be downloaded by high in the clouds platform, improves the efficiency of electrical data used.
It should be noted that the type of the volt ampere meter 10 is not construed as limiting.
Based on above-described embodiment, the composition knot of data-sharing systems is now illustrated so that volt ampere meter is three-phase phase volt ampere meter as an example
Structure.
As shown in fig. 6, Fig. 6 is the structural schematic diagram of another embodiment data-sharing systems, including three-phase phase volt ampere meter
50, server 20, terminal 30 and high in the clouds platform 40；The three-phase phase volt ampere meter 50 carries out network company with the server 20
It connects；The server 20 carries out network connection with the terminal 30.
Wherein, structural schematic diagram such as Fig. 7 of the three-phase phase volt ampere meter 50, including：Measuring device 510, signal processing
Device 520, embeded processor 540, data storage 550,4G communication devices 530, alarm device 570 and liquid crystal display
560.Measuring device 510 carries out communication with signal processing apparatus 520 and connect；The signal processing apparatus 520 is logical by the 4G
News device 530 is connected to the server 20 set on backstage；Alarm device 570 and display device 560 are directly and signal processing apparatus
520 carry out communication connection.
After the three-phase phase volt ampere meter 50 detects electrical data, by built-in 4G communication devices 130, by the electricity
Tolerance data are sent to the server 20；The server 20 receives the electrical data of the transmission of three-phase phase volt ampere meter 50
Afterwards, the electrical data is parsed, generates Data Detection report, and Data Detection report is sent to the end
End 30；Meanwhile electrical data is sent to high in the clouds platform 40 and carries out data storage by the server 20；The terminal 30 will connect
After the Data Detection report received, result displaying is carried out according to the type of data monitoring report.
Wherein, measuring device 510 is for the electrical quantity in Acquisition Circuit, such as voltage, electric current, capacitance and frequency.Signal
Processing unit 520 is used for the electrical quantity according to acquisition, calculates electrical data, and electrical data includes：Three-phase voltage virtual value,
Current effective value, frequency, phase, power factor；The positive and negative zero-sequence component of three-phase voltage current, non-equilibrium among three phase voltages, three-phase
Phase sequence；Three-phase voltage current harmonic wave, total harmonic distortion factor and each phase active power, reactive power, the total active power of three-phase and
Three phase reactive power etc..Embeded processor 540 and data storage 550 are embedding built in three-phase phase volt ampere meter 50 for running
Enter formula operating system, to manipulate the integrated operation operation of three-phase phase volt ampere meter 50.4G communication devices 530 are used for electrical quantity
Data are sent to server 20 to realize that data network is shared.In the present embodiment, liquid crystal display 560 be used for table,
The form of vectogram and curve graph shows the analysis result of each electrical data and the electrical data of history.
After the server 20 receives the electrical data that three-phase phase volt ampere meter 50 is sent, electrical data is subjected to storage preservation,
And analyzing processing is carried out to the electrical data of acquisition.The content that server 20 analyzes electrical data includes：According to setting
Specification criterion, the electrical data of historical storage is analyzed, to generate historical data analysis report, frequency analysis report
It accuses and user power utilization is accustomed to analysis report etc., and the report of the historical data analysis of generation, frequency analysis report and user are used
Electroanalysis report etc. is sent to terminal 30.
After terminal 30 obtains the electrical data that three-phase phase volt ampere meter 50 is sent in real time by server 20, by electrical quantity
Data are shown.Also, terminal 30 can be according to the actual demand of user, the historical data that the server 20 of acquisition is sent point
The Data Detections reports such as analysis report, frequency analysis report and user power utilization custom analysis report are simple and clear in different ways
Display, wherein the mode of display includes but not limited to that table is shown, vectogram is shown and curve graph is shown, to enhance
The interactive means of data.
The high in the clouds platform 40 is connect with server 20, the history detecting electric amount number for backing up storage volt ampere meter 50
According to.By the way that electrical data is uploaded to high in the clouds platform 40, realizing can be with remote download electrical data.In addition, high in the clouds is flat
The electrical data that a large amount of 50 history of three-phase phase volt ampere meter tests are stored on platform 40, according to big data analysis method, to storage
The electrical data of history test analyzed, the variation for obtaining the electrical data of the test of three-phase phase volt ampere meter 50 is dynamic
State, so as to which according to the variation of electrical data dynamic, the equipment state of assessment three-phase phase volt ampere meter 50 is real-time to realize
Monitor the operating condition of three-phase phase volt ampere meter.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of volt ampere meter, which is characterized in that including：Measurement module, signal processing module and communication module；The measurement module
Communication is carried out with the signal processing module to connect；The signal processing module is connected to by the communication module set on backstage
Server；
After the measurement module is used to measure the electrical quantity of volt ampere meter measurement point, the electrical quantity is sent to signal processing mould
Block；The signal processing module calculates electrical data according to the electrical quantity that the measurement module is sent, and passes through the communication
The electrical data is uploaded to the server by module.
2. volt ampere meter according to claim 1, which is characterized in that further include display device：The display device with it is described
Signal processing module communication connection；After the display device receives the electrical data that the signal processing module is sent, by institute
Electrical data is stated to be shown.
3. volt ampere meter according to claim 1, which is characterized in that further include alarm device；The alarm device with it is described
Signal processing module communication connection；After the alarm device is used to receive the electrical data that the signal processing module is sent,
The electrical data is compared with the threshold value of setting；It is when the electrical data is more than the threshold value, then defeated
Go out alarm prompt.
4. volt ampere meter according to claim 1, which is characterized in that further include processor and memory；The processor and
Memory controls any volt ampere meter of the claims 1 to 3 by embedded OS.
5. volt ampere meter according to claim 1, which is characterized in that the electrical data includes：Three-phase voltage, electric current,
Phase, power factor, active power, reactive power and frequency.
6. volt ampere meter according to claim 2, which is characterized in that the display device shows the electrical data
The form shown includes：Table is shown, vectogram is shown and curve graph is shown.
7. volt ampere meter according to claim 1, which is characterized in that the communication module includes 4G communication modules.
8. a kind of data-sharing systems, which is characterized in that including volt ampere meter, server and the terminal described in claim 1 to 7；
The volt ampere meter carries out network connection with the server；The server carries out network connection with the terminal；
After the volt ampere meter detection electrical data, the electrical data is sent to by the server by communication module；
After the server receives the electrical data of the volt ampere meter sender, the electrical data is parsed,
Data Detection report is generated, and Data Detection report is sent to the terminal；
The terminal shows the Data Detection received report.
9. data-sharing systems according to claim 8, which is characterized in that further include high in the clouds platform；
The high in the clouds platform carries out network connection with the server；The high in the clouds platform will obtain the institute of the server transmission
Electrical data is stated to be stored.
10. data-sharing systems according to claim 8, which is characterized in that the Data Detection, which is reported, includes：Electrical quantity
Data show that historical data analysis report, user power utilization is accustomed to analysis report.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810508527.3A CN108510723A (en) | 2018-05-24 | 2018-05-24 | Volt ampere meter and data-sharing systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508527.3A CN108510723A (en) | 2018-05-24 | 2018-05-24 | Volt ampere meter and data-sharing systems |
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| CN108510723A true CN108510723A (en) | 2018-09-07 |
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| CN201810508527.3A Pending CN108510723A (en) | 2018-05-24 | 2018-05-24 | Volt ampere meter and data-sharing systems |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090128125A1 (en) * | 2007-08-14 | 2009-05-21 | Fluke Corporation | Mini-measurement display for digital multimeter |
| CN201845037U (en) * | 2010-06-10 | 2011-05-25 | 甘肃机械电子职工大学甘肃省机械工业总公司分校 | Electric parameter wireless measurement device |
| CN202171619U (en) * | 2011-08-08 | 2012-03-21 | 江苏省电力公司仪征市供电公司 | Personal Digital Assistant (PDA) phase volt-ampere tester |
| CN104122468A (en) * | 2014-07-23 | 2014-10-29 | 国家电网公司 | Intelligent power transformation device state parameter analysis meter |
| CN208335447U (en) * | 2018-05-24 | 2019-01-04 | 广州供电局有限公司 | Volt ampere meter and data-sharing systems |
-
2018
- 2018-05-24 CN CN201810508527.3A patent/CN108510723A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090128125A1 (en) * | 2007-08-14 | 2009-05-21 | Fluke Corporation | Mini-measurement display for digital multimeter |
| CN201845037U (en) * | 2010-06-10 | 2011-05-25 | 甘肃机械电子职工大学甘肃省机械工业总公司分校 | Electric parameter wireless measurement device |
| CN202171619U (en) * | 2011-08-08 | 2012-03-21 | 江苏省电力公司仪征市供电公司 | Personal Digital Assistant (PDA) phase volt-ampere tester |
| CN104122468A (en) * | 2014-07-23 | 2014-10-29 | 国家电网公司 | Intelligent power transformation device state parameter analysis meter |
| CN208335447U (en) * | 2018-05-24 | 2019-01-04 | 广州供电局有限公司 | Volt ampere meter and data-sharing systems |
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