CN205846868U - Power circuit monitoring terminal - Google Patents
Power circuit monitoring terminal Download PDFInfo
- Publication number
- CN205846868U CN205846868U CN201620683036.9U CN201620683036U CN205846868U CN 205846868 U CN205846868 U CN 205846868U CN 201620683036 U CN201620683036 U CN 201620683036U CN 205846868 U CN205846868 U CN 205846868U
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- China
- Prior art keywords
- module
- power circuit
- wireless communication
- communication module
- monitoring terminal
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The utility model discloses a kind of power circuit monitoring terminal, including measurement module, state acquisition module and wireless communication module；Measurement module and state acquisition module are all connected with wireless communication module；Wireless communication module applies also for being connected with mobile terminal；Measurement module is for measuring the parameters of electric power in power circuit and being sent parameters of electric power to mobile terminal by wireless communication module, and state acquisition module is for gathering the on off state in power circuit and being sent on off state to mobile terminal by wireless communication module.It is all connected with wireless communication module by arranging measurement module and state acquisition module, the data measured and collect can be sent to mobile terminal by measurement module and state acquisition module by wireless communication module, it is to avoid the situation that testing staff or just must can be monitored the acquisition of data before monitoring terminal to test background and monitoring operates.Finally solve traditional power system monitoring instrument terminal operation problem the most easily.
Description
Technical field
This utility model relates to electric power monitoring technical field, particularly relates to a kind of power circuit monitoring terminal.
Background technology
At present, owing to the measuring instrument terminal of power system is typically the most only had wired communication functions.Work as testing staff
When the measuring instrument terminal using traditional power system carries out the monitoring of power circuit, generally it is required in measuring instrument terminal
In front or after a test platform (i.e., it is intended that place) is monitored the reading of data and carries out the monitoring behaviour of power system
Make.It is the most convenient that this allows for using the measuring instrument terminal of traditional power system to carry out the monitoring of power circuit.
Utility model content
Based on this, it is necessary to when carrying out the monitoring of power circuit for the measuring instrument terminal using traditional power system
It is easily caused monitoring operation problem the most easily, it is provided that a kind of power circuit monitoring terminal.
For realizing a kind of power circuit monitoring terminal that this utility model purpose provides, including measurement module, state acquisition
Module and wireless communication module；
Described measurement module and described state acquisition module are all connected with described wireless communication module；Described radio communication mold
Block applies also for being connected with mobile terminal；
Described measurement module is for measuring the parameters of electric power in power circuit and by described wireless communication module by described
Parameters of electric power sends to described mobile terminal, and described state acquisition module is for gathering the on off state in described power circuit also
By described wireless communication module, described on off state is sent to described mobile terminal.
Wherein in an embodiment, also include memory module；Described memory module respectively with described measurement module, described
State acquisition module and described wireless communication module connect, and are used for storing described parameters of electric power and described on off state.
Wherein in an embodiment, also include controller；
Described controller is electrically connected with described measurement module, described state acquisition module and described wireless communication module respectively
Connect；
Described controller, for reading described parameters of electric power and the described state acquisition module that described measurement module measurement is arrived
The described on off state collected, and the described parameters of electric power read and described on off state are passed through described wireless communication module
Transmission is to described mobile terminal；
Described controller, is additionally operable to receive test parameter by described wireless communication module, and is passed by described test parameter
Transport to described measurement module and described state acquisition module, to control described measurement module and described state acquisition module.
Wherein in an embodiment, also include clock generation circuit；Described clock generation circuit and described controller electricity
Connect, be used for exporting system clock to described controller.
Wherein in an embodiment, described wireless communication module includes single-chip microcomputer and the RF module being connected.
Wherein in an embodiment, also include wire communication module；Described wire communication module is with described controller even
Connect, and be applicable to the test background communication connection with described power circuit.
Wherein in an embodiment, also include power module；Described power module respectively with described measurement module, described
State acquisition module and the electrical connection of described wireless communication module, be used for as described measurement module, described state acquisition module and institute
State wireless communication module and electric energy is provided.
Wherein in an embodiment, described measurement module, described state acquisition module and described wireless communication module are equal
Integrated on circuit boards.
Wherein in an embodiment, also include housing；
Described housing includes casing upper cover and chassis base；Described casing upper cover is formed with described chassis base has one end
The closing space of opening；
Described circuit board is placed in described closing space by described opening.
Wherein in an embodiment, also include clip；
Described clip is arranged on the outside of described chassis base, and is applicable to be fixed on the guide rail of described power circuit
On.
Above-mentioned power circuit monitoring terminal, by arranging measurement module, state acquisition module and wireless communication module, by surveying
Parameters of electric power in power circuit and the on off state in power circuit are surveyed by amount module and state acquisition module respectively
Amount and collection, and be all connected with wireless communication module by arranging measurement module and state acquisition module, wherein radio communication mold
Block applies also for connecting mobile terminal, so that measurement module and state acquisition module will be able to be surveyed by wireless communication module
Amount and the data collected send to mobile terminal.Thus, testing staff only need to can be monitored data by mobile terminal
Real time inspection, it is achieved that checking whenever and wherever possible of Monitoring Data, which obviating testing staff must be before monitoring terminal or arrive
Test background just can be monitored acquisition and the situation of monitoring operation of data, is effectively increased the flexible of power circuit monitoring
Property and convenience.Finally efficiently solve when using monitoring that the measuring instrument terminal of traditional power system carries out power circuit
It is easily caused monitoring operation problem the most easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment one of power circuit monitoring terminal of the present utility model；
Fig. 2 is the circuit of a specific embodiment of wireless communication module in power circuit monitoring terminal of the present utility model
Figure；
Fig. 3 is the structural representation of the embodiment two of power circuit monitoring terminal of the present utility model；
Fig. 4 is the structural representation of the embodiment three of power circuit monitoring terminal of the present utility model；
Fig. 5 is the structural representation of the embodiment four of power circuit monitoring terminal of the present utility model；
Fig. 6 is the circuit of a specific embodiment of the clock generation circuit in power circuit monitoring terminal of the present utility model
Figure；
Fig. 7 is the structural representation of the embodiment five of power circuit monitoring terminal of the present utility model.
Detailed description of the invention
For making technical solutions of the utility model clearer, below in conjunction with drawings and the specific embodiments, this utility model is made
Further describe.
First, it should be noted that power circuit monitoring terminal of the present utility model refers to one and is applied to power train
In system monitoring field, for monitoring the detection device of the power circuit in power system.
Mobile terminal, then refer to various hand-hold electronic equipments, such as: mobile phone, panel computer, Intelligent bracelet etc..Herein, no
Enumerate again.
See Fig. 1, as a specific embodiment of power circuit monitoring terminal 100 of the present utility model, its internal configuration
There are measurement module 110, state acquisition module 120 and wireless communication module 130.Wherein, measurement module 110, it is used for measuring electric power
Parameters of electric power (such as: the running current of power circuit and working voltage etc.) in circuit.State acquisition module 120 is then used for gathering
On off state in power circuit (specially gather the external switch amount signal of power circuit to judge the state of external switch,
As: switch off or close).Herein, it should be noted that measurement module 110 and state acquisition module 120 all can be by corresponding
Testing circuit and Acquisition Circuit realize.Further, it can directly use the circuit in existing power circuit instrumentation, this
Place no longer repeats.
It should be noted that in power circuit monitoring terminal 100 of the present utility model, measurement module 110 and state are adopted
Collection module 120 is all connected with wireless communication module 130.Meanwhile, wireless communication module 130 applies also for being connected with mobile terminal.
Thus, it arranges wireless communication module 130 by increasing in power circuit monitoring terminal 100, and arranges wireless communication module
130 are connected with measurement module 110 and state acquisition module 120, also set up wireless communication module 130 simultaneously and are applicable to connect movement
Terminal, so that wireless communication module 130 is as the bridge between power circuit monitoring terminal 100 and mobile terminal, with reality
The purpose of the data transmission between existing power circuit monitoring terminal 100 mobile terminal.Thus, need to check electric power as testing staff
During the data that path monitoring terminal 100 is monitored, as long as power circuit monitoring terminal 100 and mobile terminal are in communication connection
On the basis of, can carry out the most on mobile terminals checking, it is achieved thereby that the purpose that Monitoring Data is checked whenever and wherever possible, have
Effect improves motility and the convenience of monitoring.
Herein, it should be noted that work as by configuring wireless communication module 130 inside power circuit monitoring terminal 100
During to realize the data-transformation facility of power circuit monitoring terminal 100 and mobile terminal, mobile terminal can be installed accordingly and electricity
Line of force road monitoring terminal 100 tests software (that is, APP, application software) accordingly, realizes receiving and showing that power circuit is monitored
Monitoring Data detected by terminal 100.Wherein, it will be appreciated by persons skilled in the art that and install on mobile terminals
Test software both can use existing testing tool to realize, it is possible to is realized by independent development.The most no longer repeat.
It is also desirable to it is noted that in power circuit monitoring terminal 100 of the present utility model, also include control
Module (not shown).This control module for carrying out the shape of power circuit at measurement module 110 and state acquisition module 120
During state detection, power circuit is controlled.
Wherein, see Fig. 2, in a specific embodiment of power circuit monitoring terminal 100 of the present utility model, channel radio
Letter module 130 can be realized by the single-chip microcomputer being connected and RF module.Wherein, what U1 referred to is exactly that single-chip microcomputer is connected with RF module
Wireless communication chips after integration.It is connected on outward the resistance (such as: R1, R2) at each pin of U1 and electric capacity (such as: C1, C3 and C4
Deng) be for ensureing what the reliability and stability that wireless communication module 130 carries out data transmission were arranged.Herein, in addition it is also necessary to
Illustrate, it will be understood by those skilled in the art that RF module refers to a kind of chip with data forwarding capability.As:
I482e-s bluetooth module, supports bluetooth V4.0 and bluetooth V2.1+EDR and supports SPP Yu GATT bimodulus Bluetooth protocol, low-power consumption
Quickly matching connection, communication distance is remote and does not interfere with each other.That is, wireless communication module 130 uses Bluetooth communication to carry out the biography of data
Defeated.Further, its single-chip microcomputer being connected by setting and RF module are as wireless communication module 130, simple in construction, it is easy to real
Existing.
Further, in order to realize testing staff, historical data is consulted, thus it is new to improve this practicality further
The reliability of the power circuit monitoring terminal 100 of type, sees Fig. 1, as power circuit monitoring terminal 100 of the present utility model
One specific embodiment, it also includes memory module 140.Wherein, memory module 140 respectively with measurement module 110, state acquisition
Module 120 and wireless communication module 130 connect, for storing parameters of electric power and the state acquisition that measurement module 110 detects
The on off state that module 120 collects.Thus, before testing staff needs to carry out, detected Monitoring Data (is specifically wrapped
Include parameters of electric power and on off state) time, can directly be gone through accordingly by memory module 140 obtains by wireless communication module 130
History Monitoring Data.This most further improves the reliability of power circuit monitoring terminal 100.Wherein it is desired to say
Bright, memory module 140 can directly use memorizer to realize.As: DRAM (dynamic RAM), FLASH (flash memory)
Deng.
It addition, when testing staff uses power circuit monitoring terminal 100 of the present utility model to carry out the monitoring of power circuit
During, it is monitored when checking of data by mobile terminal, specifically can be realized by controller 150.That is, Fig. 3 is seen,
As the embodiment two of power circuit monitoring terminal 100 of the present utility model, inside it, it is also configured with controller 150.Controller
150 are connected with measurement module 110, state acquisition module 120 and wireless communication module 130 respectively.Further, monitor when power circuit
When being also configured with memory module 140 in terminal 100, controller 150 is the most also connected with memory module 140.Thus, controller
150, for reading parameters of electric power and the on off state that collects of state acquisition module 120 that measurement module 110 is measured, and will
The parameters of electric power and the on off state that read are transmitted to mobile terminal by wireless communication module 130.Meanwhile, controller 150, also use
Transmit to measurement module 110 and state acquisition module 120 in the parameter that arranges received by wireless communication module 130, with control
Measurement module 110 processed and state acquisition module 120.
It is to say, by Configuration Control Unit 150, core control by controller 150 in power circuit monitoring terminal 100
Make and use.Concrete, controller 150 control measurement module 110 and the working voltage in power circuit and running current etc. are entered
To analyze, row real-time sampling and data statistics, judge that power circuit operation is the most normal.And by controller 150 controlled state simultaneously
External switch state in acquisition module 120 Real-time Collection power circuit is to judge the most normally power circuit to provide auxiliary
Comprehensive function is to improve the accuracy of judged result.Meanwhile, the electric power detected by measurement module 110 is also joined by controller 150
The on off state data timing that number data and state acquisition module 120 collect is saved in memory module 140.Thus, when
After testing staff is by using mobile terminal and power circuit monitoring terminal 100 to be communicatively coupled, monitored by power circuit
Wireless communication module 130 in terminal 100 starts controller 150 and goes to read the data of memory module 140 storage inside, thus real
Show testing staff to the reading of Monitoring Data and to check.
Further, after power circuit monitoring terminal and mobile terminal set up communication connection, testing staff also by
The testing tool installed on mobile terminal is (such as: power circuit test APP, it can directly use existing testing tool
Realize) corresponding test parameter is set, and then by wireless communication module 130, test parameter is sent to controller 150.Control
After device 150 receives test parameter, control measurement module 110 and state acquisition module 120 according to received test parameter
Measure accordingly and gather, it is achieved thereby that the data interaction merit between power circuit monitoring terminal 100 and mobile terminal
Energy.This most further improves the multifunctionality of power circuit monitoring terminal 100 of the present utility model, thus carries further
The high performance of power circuit monitoring terminal 100.
Wherein it is desired to explanation, when power circuit monitoring terminal 100 carries out the monitoring of power circuit, need to rely on
System clock carries out a series of detection and collection.Therefore, also include in power circuit monitoring terminal 100 of the present utility model
There is clock generation circuit.Wherein, clock generation circuit electrically connects with controller 150, is used for exporting system clock to controller
150, so that the clock of power circuit monitoring terminal 100 reaches Tong Bu purpose with external time.
Concrete, seeing Fig. 4, clock generation circuit can directly use single clock to produce chip and realize.Wherein, U2
It is RTC real time clock circuit chip.Wherein, it will be appreciated by persons skilled in the art that outer being connected at each pin of U2
Components and parts (such as: diode D1, D2, resistance R16 etc.) be for improving the system clock that exported of clock generation circuit
Accuracy and reliability and arrange.Therefore, the most no longer repeat.
Further, see Fig. 5, in the embodiment three of power circuit monitoring terminal 100 of the present utility model, in it
Portion is configured with wire communication module 160 the most simultaneously.Wherein, wire communication module 160 is connected with controller 150, and, cable modem
Letter module 160 applies also for the test background communication connection with power circuit.Thus, it is by power circuit test terminal
Portion configures wire communication module 160 simultaneously, wire communication module 160 detected by measurement module 110 by controller 150
The on off state data that parameters of electric power data and state acquisition module 120 collect (may also include institute in memory module 140
The Monitoring Data of storage) transfer function of data is realized by Modbus RTU communication protocol, thus realize power circuit prison
Survey the purpose of terminal 100 and the data interaction of test background.It is to say, power circuit monitoring terminal 100 of the present utility model
On the basis of being capable of radio communication connection, also set up wired communication connection, by RS485 bus by Monitoring Data simultaneously
It is uploaded in the external equipment such as communication processor or intelligent micro-grid tuning controller 150, then on secure communication network
Reach distant place main website and be simultaneously transferred to local monitor, thus carrying out looking into of related data to realize testing staff's platform after a test
Ask and operation.This most further improves the multiformity of power circuit monitoring terminal 100, thus further ensures
The operation checking and monitoring process of Monitoring Data.
It is also desirable to explanation, owing to being required to drive when the modules in power circuit monitoring terminal 100 works
Galvanic electricity pressure just can be carried out, and therefore, sees Fig. 6, in the embodiment four of power circuit monitoring terminal 100 of the present utility model, its
Inside is also configured with power module 170.Wherein, power module 170 respectively with measurement module 110, state acquisition module 120, nothing
The electrical connection of the modules such as line communication module 130, controller 150, memory module 140 and wire communication module 160, be used for be
Modules provides corresponding electric energy.Meanwhile, so that power circuit monitoring terminal 100 of the present utility model can have extensively
General range, power module 170 is preferably supports that 85V 470V powers, and supports direct current 110V or 220V simultaneously
Power supply is powered.
Further, can convenience in order to improve power circuit monitoring terminal 100, it is preferred that of the present utility model
In power circuit monitoring terminal 100, measurement module 110, state acquisition module 120, wireless communication module 130, controller 150,
Memory module 140, wire communication module 160 and power module 170 are all integrated on same circuit board 180.Further, figure is seen
7, as the embodiment five of power circuit monitoring terminal 100 of the present utility model, it also includes housing 190.Wherein, housing
190 include casing upper cover 191 and chassis base 192.Casing upper cover 191 is formed with chassis base 192 has one end open
Closing space, the circuit board 180 being integrated with modules is placed in closing space by this opening.So that this utility model
Power circuit monitoring terminal 100 can reach water-proof function, be effectively improved being convenient for carrying of power circuit monitoring terminal 100
While, the most effectively ensure that the service life of power circuit monitoring terminal 100.
It addition, further, seeing Fig. 7, as power circuit monitoring terminal 100 of the present utility model is concrete real
Executing example, it also includes clip 193.Wherein, clip 193 is arranged on the outer wall of chassis base 192, and is applicable to fix
On the guide rail 200 of power circuit, thus prevent coming off of power circuit monitoring terminal 100, power circuit prison has been effectively ensured
Survey process smooth.Wherein, the number of clip 193 can be multiple, preferably two.By arrange two clips 193 with
The fixing power circuit monitoring terminal 100 installation on guide rail 200, can either be effectively ensured power circuit monitoring terminal 100 and pacify
The steadiness of dress, additionally it is possible to realize saving the purpose of production cost.
Meanwhile, it will be appreciated by persons skilled in the art that each technical characteristic of embodiment described above can carry out appointing
The combination of meaning, for making description succinct, is not all described all possible combination of each technical characteristic in above-described embodiment,
But, as long as the combination of these technical characteristics does not exist contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, common for this area
For technical staff, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. a power circuit monitoring terminal, it is characterised in that include measurement module, state acquisition module and radio communication mold
Block；
Described measurement module and described state acquisition module are all connected with described wireless communication module；Described wireless communication module is also
It is applicable to be connected with mobile terminal；
Described measurement module is for measuring the parameters of electric power in power circuit and by described wireless communication module by described electric power
Parameter sends to described mobile terminal, and described state acquisition module is for gathering the on off state in described power circuit and passing through
Described on off state is sent to described mobile terminal by described wireless communication module.
Power circuit monitoring terminal the most according to claim 1, it is characterised in that also include memory module；Described storage
Module is connected with described measurement module, described state acquisition module and described wireless communication module respectively, is used for storing described electricity
Force parameter and described on off state.
Power circuit monitoring terminal the most according to claim 1, it is characterised in that also include controller；
Described controller electrically connects with described measurement module, described state acquisition module and described wireless communication module respectively；
Described controller, for reading described parameters of electric power and the described state acquisition module collection that described measurement module measurement is arrived
The described on off state arrived, and the described parameters of electric power read and described on off state are transmitted by described wireless communication module
To described mobile terminal；
Described controller, is additionally operable to receive test parameter by described wireless communication module, and is transmitted extremely by described test parameter
Described measurement module and described state acquisition module, to control described measurement module and described state acquisition module.
Power circuit monitoring terminal the most according to claim 3, it is characterised in that also include clock generation circuit；Described
Clock generation circuit electrically connects with described controller, is used for exporting system clock to described controller.
Power circuit monitoring terminal the most according to claim 1, it is characterised in that described wireless communication module includes being connected
The single-chip microcomputer connect and RF module.
Power circuit monitoring terminal the most according to claim 3, it is characterised in that also include wire communication module；Described
Wire communication module is connected with described controller, and is applicable to the test background communication connection with described power circuit.
Power circuit monitoring terminal the most according to claim 1, it is characterised in that also include power module；Described power supply
Module electrically connects with described measurement module, described state acquisition module and described wireless communication module respectively, is used for as described survey
Amount module, described state acquisition module and described wireless communication module provide electric energy.
8. according to the power circuit monitoring terminal described in any one of claim 1 to 7, it is characterised in that described measurement module, institute
State state acquisition module and described wireless communication module is the most integrated on circuit boards.
Power circuit monitoring terminal the most according to claim 8, it is characterised in that also include housing；
Described housing includes casing upper cover and chassis base；Described casing upper cover is formed with described chassis base has one end open
Closing space；
Described circuit board is placed in described closing space by described opening.
Power circuit monitoring terminal the most according to claim 9, it is characterised in that also include clip；
Described clip is arranged on the outside of described chassis base, and is applicable to be fixed on the guide rail of described power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683036.9U CN205846868U (en) | 2016-06-30 | 2016-06-30 | Power circuit monitoring terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683036.9U CN205846868U (en) | 2016-06-30 | 2016-06-30 | Power circuit monitoring terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205846868U true CN205846868U (en) | 2016-12-28 |
Family
ID=58151084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620683036.9U Active CN205846868U (en) | 2016-06-30 | 2016-06-30 | Power circuit monitoring terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205846868U (en) |
-
2016
- 2016-06-30 CN CN201620683036.9U patent/CN205846868U/en active Active
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