CN107331144A - Power information collecting device and acquisition system - Google Patents
Power information collecting device and acquisition system Download PDFInfo
- Publication number
- CN107331144A CN107331144A CN201710541355.5A CN201710541355A CN107331144A CN 107331144 A CN107331144 A CN 107331144A CN 201710541355 A CN201710541355 A CN 201710541355A CN 107331144 A CN107331144 A CN 107331144A
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- China
- Prior art keywords
- power information
- collecting device
- information collecting
- processing unit
- central processing
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
Abstract
The invention provides a kind of power information collecting device and acquisition system, it is related to the technical field of electricity consumption monitoring, the equipment includes：Central processing unit, communication module, heartbeat timer and signal acquisition module, the collection terminal of signal acquisition module and the ammeter of user are connected, the power information for gathering user, and power information is transmitted to central processing unit；Heartbeat timer is used to produce heartbeat packet according to the cycle set in advance, and heartbeat packet is sent to central processing unit；Central processing unit is used to receive heartbeat packet, sends heartbeat packet to master station according to the cycle set in advance, so that master station judges whether the communication of power information collecting device is normal.Power information collecting device and acquisition system that the present invention is provided, find the power information collecting device of communication abnormality in time by way of detecting heartbeat packet, are favorably improved the success rate of power information collection, and then improve the operating efficiency of power department.
Description
Technical field
The present invention relates to electricity consumption monitoring technical field, more particularly, to a kind of power information collecting device and acquisition system.
Background technology
The power information collecting device of power consumer is that the power information of power consumer is acquired, handle and supervised in real time
The equipment of control, with power system reform deepen constantly and process of reform quickening, improve power supply quality and service level
It is the requirement that power supply enterprise complies with market economy, therefore, the power information to power consumer is acquired, handles and supervised exactly
Control, build intelligent power service system, make great efforts to increase customer satisfaction degree, be build a harmonious society, builds harmony electric power certainty
It is required that.
In order to ensure the collection success rate of power information collection, it is necessary to using power information collecting device and the prison of power department
Control equipment and keep proper communication, the normal acquisition of power information could be carried out.And under normal circumstances, power information acquisition terminal
The factors such as performance, site environment, communication base station, acquisition system main website can all influence power information gather success rate, and due to
Number of devices is more, and staff is difficult that each equipment is monitored in real time, and finds which power information in time
The communication abnormality of collecting device, reduces the success rate of power information collection, also makes work efficiency drop.
For staff it is difficult to be monitored in real time to each equipment, power information is caused to gather asking for success rate reduction
Topic, not yet proposes effective solution at present.
The content of the invention
In view of this, it is an object of the invention to provide a kind of power information collecting device and acquisition system, with alleviate by
The technical problem of the low caused work efficiency drop of success rate is gathered in power information.
In a first aspect, the embodiments of the invention provide a kind of power information collecting device, the equipment includes：Center processing
Device, communication module, heartbeat timer and signal acquisition module, communication module, heartbeat timer and signal acquisition module respectively with
Central processing unit is connected；The collection terminal of signal acquisition module and the ammeter of user are connected, the power information for gathering user, and
Power information is transmitted to central processing unit, led so that central processing unit transmits power information to monitoring by communication module
Stand, wherein, power information includes information about power, the identification number of ammeter of user, and user profile corresponding with identification number；The heart
Jumping timer is used to produce heartbeat packet according to the cycle set in advance, and heartbeat packet is sent to central processing unit；Center processing
Device is used to receive heartbeat packet, sends heartbeat packet to master station according to the cycle set in advance, so that master station judges to use
Whether the communication of power information collecting device is normal.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, on
Stating equipment also includes locating module, and the locating module is used for the positional information of collecting device, and positional information is sent to center
Processor；Central processing unit is used for receiving position information, is sent positional information to master station by communication module.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein, on
State signal acquisition module and be provided with RS485 interfaces；Power information collecting device is connected by RS485 interfaces with ammeter.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, wherein, on
State communication module and be provided with sim card slot and GPRS antenna；Sim card slot is used to install SIM card, and power information collecting device passes through
SIM card is communicated with master station.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, on
State the signal lamp that power information collecting device also includes being connected with central processing unit；Signal lamp includes power supply instruction
Lamp, alarm lamp and communication indicator lamp, wherein, communication indicator lamp also includes uplink communication indicator lamp and downlink communication indicator lamp.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, on
State the display that power information collecting device also includes being connected with central processing unit；Display is liquid crystal display, for showing
The running parameter of power information collecting device.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the 6th of first aspect kind
Possible embodiment, wherein, above-mentioned power information collecting device also includes the data storage being connected with central processing unit；Should
Data storage is used to store power information and positional information.
With reference to first aspect and the first to six kind of possible embodiment of first aspect, the embodiments of the invention provide
7th kind of possible embodiment of one side, wherein, above-mentioned power information collecting device is encapsulated in a housing, the housing
On be additionally provided with transparent window.
With reference to the 7th kind of possible embodiment of first aspect, the embodiments of the invention provide the 8th of first aspect kind
Possible embodiment, wherein, at least one edge on above-mentioned housing is provided with connecting terminal block；The connecting terminal block bag
Include the corresponding binding post of power supply terminal, signal acquisition module and reserved binding post.
Second aspect, the embodiment of the present invention also provides a kind of power information acquisition system, and the system includes above-mentioned first party
Power information collecting device described in face, in addition to monitoring host computer and ammeter；Monitoring host computer is arranged on power information collection department,
Ammeter is arranged on user side；Monitoring host computer and power information collecting device radio communication.
The embodiment of the present invention brings following beneficial effect：
Power information collecting device provided in an embodiment of the present invention and acquisition system, by the side for setting heartbeat timer
Formula, produces heartbeat packet according to the cycle set in advance, and heartbeat packet is sent to central processing unit, by central processing unit by the heart
Jump bag to send to master station, so that master station judges whether the communication of power information collecting device is normal, inspection can be passed through
The mode of measuring heart-beat bag finds the power information collecting device of communication abnormality in time, is favorably improved the success of power information collection
Rate, and then improve the operating efficiency of power department.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those skilled in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of power information collecting device provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another power information collecting device provided in an embodiment of the present invention；
Fig. 3 is a kind of contour structures schematic diagram of power information collecting device provided in an embodiment of the present invention；
Fig. 4 is a kind of structured flowchart of power information acquisition system provided in an embodiment of the present invention.
Icon：300- housings；301- connecting terminal blocks；302- terminals are identified；303- nail；106- signal lamps；
107- displays.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those skilled in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the invention.
At present, because power information collecting device is more, power department is difficult that each power information collecting device is carried out
Monitor in real time, the success rate of power information collection is have impact on to a certain extent, based on this, the embodiments of the invention provide one
Power information collecting device and acquisition system are planted, helps to be monitored power information collecting device, power information is improved and adopts
The success rate of collection.
For ease of understanding the present embodiment, a kind of power information collection disclosed in the embodiment of the present invention is set first
It is standby to describe in detail.
Embodiment one：
The embodiments of the invention provide a kind of power information collecting device, a kind of power information collection as shown in Figure 1 is set
Standby structural representation, including：Central processing unit 101, communication module 102, heartbeat timer 103 and signal acquisition module 104,
The communication module 102, heartbeat timer 103 and signal acquisition module 104 are connected with central processing unit 101 respectively.
When implementing, the collection terminal of signal acquisition module 104 and the ammeter of user are connected, the electricity consumption for gathering user
Information, and power information is transmitted to central processing unit 101, so that power information is passed through communication module by central processing unit 101
102 transmit to master station, wherein, power information includes information about power, the identification number of ammeter of user, and with identification number pair
The user profile answered.
Heartbeat timer 103 is used to produce heartbeat packet according to the cycle set in advance, and heartbeat packet is sent to centre
Manage device 101；Central processing unit 101 is used to receive heartbeat packet, sends heartbeat packet to master station according to the cycle set in advance,
So that master station judges whether the communication of power information collecting device is normal.
Power information collecting device provided in an embodiment of the present invention, by way of setting heartbeat timer, according to advance
Cycle of setting produces heartbeat packet, and heartbeat packet is sent to central processing unit, by central processing unit by heartbeat packet send to
Master station, so that master station judges whether the communication of power information collecting device is normal, can be by detecting heartbeat packet
Mode finds the power information collecting device of communication abnormality in time, is favorably improved the success rate of power information collection, Jin Erti
The operating efficiency of high power department.
When implementing, above-mentioned signal acquisition module 104 can be realized by electric energy computation chip, for example, CS5463 types
Three-phase electrical energy computation chip, it is convenient that its software and hardware is realized, simultaneously, it may have computational accuracy is high, cheap advantage, extensively
It is general to be applied to electric energy measurement control field.When implementing, the specific side of the collection of electric signal is realized using electric energy computation chip
Formula, may be referred to related data of the prior art, and the embodiment of the present invention is not being repeated this.
Preferably, above-mentioned heartbeat timer can be realized by programming language, for example, Timer timers, it is possible to achieve hair
Send the function of heartbeat packet.Further, because heart beat cycle is to maintain master station and power information collecting device in long-time nothing
The important parameter of link is kept under communication state, and place is different, the pattern of master station detection presence is inconsistent, then adds
Upper operator and the difference of communication base station, heart beat cycle length also can be inconsistent.If heart beat cycle is long, more than master station
Or the cycle of operator's acquiescence will result in telecommunication links and can not safeguard, power information collecting device often goes offline；Such as
Core hop cycle is too short, and power information collecting device frequently sends heartbeat frame or login frame, can cause the waste of flow, therefore,
It is specific that heart beat cycle how long is set, suitable heart beat cycle can be set according to actual conditions, the embodiment of the present invention to this not
Limited.
Embodiment two：
On the basis of above-described embodiment one, the embodiment of the present invention additionally provides another power information collecting device, such as
The structural representation of another power information collecting device shown in Fig. 2.
Except the structure shown in Fig. 1, power information collecting device provided in an embodiment of the present invention includes locating module 105, should
Locating module 105 is connected with central processing unit 101, the positional information for gathering power information collecting device, and position is believed
Breath is sent to central processing unit；Central processing unit is used for receiving position information, is sent positional information to prison by communication module
Control main website.
Further, above-mentioned signal acquisition module 104 is provided with RS485 interfaces (not shown in Fig. 2)；The power information is gathered
Equipment is connected by RS485 interfaces with ammeter.Further, above-mentioned communication module 102 is provided with sim card slot and GPRS
(General Packet Radio Service, general packet radio service) antenna；Sim card slot is used to install SIM card, electricity consumption
Information collecting device is communicated by SIM card with master station.
Generally, the communication of power information collecting device and master station is referred to as uplink communication, power information collection is set
The standby communication with ammeter is referred to as downlink communication, and uplink communication mode is generally the modes such as Ethernet, optical fiber, GPRS, short message, under
Row communication modes are RS485, carrier wave, micropower is wireless etc., in the present embodiment, and uplink communication mode is preferably GPRS communications,
Downlink communication mode is preferably RS485.GPRS communications are because broad covered area, access are convenient, the low feature of operating cost and turn into electric
Preferred data feedback channel when power user power utilization information acquisition system is applied, it is contemplated that above-mentioned power information collecting device is typically all set
Put in case change, easily influenceed by installation site, can be one if the antenna of power information collecting device is arranged on into case becomes interior
Determine in degree weaken GPRS signals, part signal it is bad area in addition can not communicate at all, therefore, can in actual use
Become outer so that GPRS antenna is pulled out to case, be placed on the space of an opposing open, meanwhile, when Virtual network operator provides SIM card,
It is distinctly claimed and opens the functions such as GPRS flows, has ensured that the normal of SIM card is used.
Further, above-mentioned power information collecting device also includes the signal lamp 106 being connected with central processing unit 101；
The signal lamp 106 includes power supply indicator, alarm lamp and communication indicator lamp, wherein, communication indicator lamp also includes up logical
Believe indicator lamp and downlink communication indicator lamp.
Further, above-mentioned power information collecting device also includes the display 107 being connected with central processing unit 101；This shows
It is liquid crystal display, the running parameter for showing power information collecting device to show device 107.Preferably, above-mentioned power information is adopted
Collection equipment also includes the data storage 108 being connected with central processing unit 101；The data storage 108 is used for storage telecommunications
Breath and positional information.
In practical application, above-mentioned power information collecting device is encapsulated in a housing, it is additionally provided with the housing
Bright window, specifically, the size and the size of display 107 of the transparent window match.Further, on above-mentioned housing at least
One edge is provided with connecting terminal block；The connecting terminal block is made up of multiple binding posts, including power supply terminal, letter
Number corresponding binding post of acquisition module and reserved binding post.
Fig. 3 shows a kind of contour structures schematic diagram of power information collecting device, including housing 300, display 107,
Indicator lamp 106, connecting terminal block 301.It is more in view of the number of terminals in connecting terminal block 301, for the ease of distinguishing, in shell
With being additionally provided with terminal mark 302 on the corresponding position of connecting terminal block 301 on body 300, to identify the classification of each terminal, just
In being identified.
Further, become or on the wall of ammeter due to being fixed on case power information collecting device more, therefore, Fig. 3
Also include multiple nail 303 in the contour structures schematic diagram of shown power information collecting device, above-mentioned telecommunications is used for fixing
Cease collecting device.
It should be appreciated that the contour structures schematic diagram of the power information collecting device shown in Fig. 3, the only embodiment of the present invention
A kind of preferred structure, in other embodiments, the housing of above-mentioned power information collecting device can also have other shapes and
Fixed form, meanwhile, the quantity of connecting terminal block and position can also be configured according to actual use situation, and the present invention is implemented
Example is not limited to this.
Power information collecting device provided in an embodiment of the present invention, by way of setting heartbeat timer, according to advance
Cycle of setting produces heartbeat packet, and heartbeat packet is sent to central processing unit, by central processing unit by heartbeat packet send to
Master station, so that master station judges whether the communication of power information collecting device is normal, can be by detecting heartbeat packet
Mode finds the power information collecting device of communication abnormality in time, is favorably improved the success rate of power information collection, Jin Erti
The operating efficiency of high power department.
Embodiment three：
On the basis of above-described embodiment one and embodiment two, the embodiment of the present invention additionally provides a kind of power information collection
System, the structured flowchart of power information acquisition system as shown in Figure 4, system includes power information collecting device 401, also wraps
Include monitoring host computer 400 and ammeter 402；Monitoring host computer 400 is arranged on power information collection department, and ammeter 402 is arranged on user side.
When implementing, monitoring host computer 400 and power information collecting device radio communication.
It should be appreciated that illustrate only a power information collecting device and an ammeter for convenience of description, in Fig. 4.
In actual use, because ammeter is arranged on user side, therefore, the quantity of ammeter can have multiple, further, according to user's
Distribution situation, can gather the power information of multiple users in a designated area with a power information collecting device.When
When having multiple designated areas, above-mentioned power information collecting device can also have multiple, be specifically defined by actual use situation, this hair
Bright embodiment is not limited to this.
When implementing, the staff of power information collection department can receive power information by monitoring host computer and gather
The heartbeat packet that equipment is sent, because the transmission cycle of the heartbeat packet is pre-set, when in the transmission cycle set in advance
Interior, monitoring host computer is not received by heartbeat packet, and monitoring host computer can send prompt message to staff, for example, in monitoring master
Pop-up dialogue box on the display of machine, and the information such as prompt tone are sent, point out staff to there is power information collecting device to go out
The situation of existing communication abnormality, because power information includes the identification number of information about power, ammeter, and use corresponding with identification number
Family information, therefore, staff can transfer corresponding information in time, and abnormal conditions are investigated.
Power information acquisition system provided in an embodiment of the present invention, by way of setting heartbeat timer, according to advance
Cycle of setting produces heartbeat packet, and heartbeat packet is sent to central processing unit, by central processing unit by heartbeat packet send to
Master station, so that master station judges whether the communication of power information collecting device is normal, can be by detecting heartbeat packet
Mode finds the power information collecting device of communication abnormality in time, is favorably improved the success rate of power information collection, Jin Erti
The operating efficiency of high power department.
Power information acquisition system provided in an embodiment of the present invention, the power information collecting device provided with above-described embodiment
With identical technical characteristic, so can also solve identical technical problem, identical technique effect is reached.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description
Specific work process, may be referred to the corresponding process in previous embodiment, will not be repeated here.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.To those skilled in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Above example, is only the embodiment of the present invention, the skill to illustrate the present invention
Art scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although entering with reference to the foregoing embodiments to the present invention
Go detailed description, it should be understood by those skilled in the art that：Any one skilled in the art takes off in the present invention
In the technical scope of dew, it can still modify to the technical scheme described in previous embodiment or can readily occur in change
Change, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make relevant art
Scheme essence depart from technical scheme of the embodiment of the present invention spirit and scope, should all cover protection scope of the present invention it
It is interior.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of power information collecting device, it is characterised in that including：Central processing unit, communication module, heartbeat timer and letter
Number acquisition module, the communication module, the heartbeat timer and the signal acquisition module respectively with the central processing unit
Connection；
The collection terminal of the signal acquisition module and the ammeter of user are connected, the power information for gathering the user, and will
The power information is transmitted to the central processing unit, so that the power information is passed through the communication by the central processing unit
Module transfer to master station, wherein, the power information includes information about power, the identification number of the ammeter of the user,
And user profile corresponding with the identification number；
The heartbeat timer is used to produce heartbeat packet according to the cycle set in advance, and the heartbeat packet is sent in described
Central processor；
The central processing unit be used for receive the heartbeat packet, according to the cycle set in advance by the heartbeat packet send to
The master station, so that the master station judges whether the communication of the power information collecting device is normal.
2. power information collecting device according to claim 1, it is characterised in that the equipment also includes locating module,
The locating module is connected with the central processing unit, the positional information for gathering the power information collecting device, and will
The positional information is sent to the central processing unit；
The central processing unit is used to receive the positional information, is sent the positional information to institute by the communication module
State master station.
3. power information collecting device according to claim 1, it is characterised in that the signal acquisition module is provided with
RS485 interfaces；
The power information collecting device is connected by the RS485 interfaces with the ammeter.
4. power information collecting device according to claim 1, it is characterised in that the communication module is provided with SIM card
Groove and GPRS antenna；
The sim card slot is used to install SIM card, and the power information collecting device passes through the SIM card and the master station
Communicated.
5. power information collecting device according to claim 1, it is characterised in that the power information collecting device is also wrapped
Include the signal lamp being connected with the central processing unit；
The signal lamp includes power supply indicator, alarm lamp and communication indicator lamp, wherein, the communication indicator lamp also includes
Uplink communication indicator lamp and downlink communication indicator lamp.
6. power information collecting device according to claim 1, it is characterised in that the power information collecting device is also wrapped
Include the display being connected with the central processing unit；
The display is liquid crystal display, the running parameter for showing the power information collecting device.
7. power information collecting device according to claim 2, it is characterised in that the power information collecting device is also wrapped
Include the data storage being connected with the central processing unit；
The data storage is used to store the power information and the positional information.
8. the power information collecting device according to any one of claim 1~7, it is characterised in that the power information is adopted
Collect equipment packages in a housing, transparent window is additionally provided with the housing.
9. power information collecting device according to claim 8, it is characterised in that at least one edge on the housing
Place is provided with connecting terminal block；
The connecting terminal block includes power supply terminal, the corresponding binding post of the signal acquisition module and reserved terminals
Son.
10. a kind of power information acquisition system, it is characterised in that the system includes the use described in claim any one of 1-9
Power information collecting device, in addition to monitoring host computer and ammeter；The monitoring host computer is arranged on power information collection department, the electricity
Table is arranged on user side；
The monitoring host computer and the power information collecting device radio communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541355.5A CN107331144A (en) | 2017-07-05 | 2017-07-05 | Power information collecting device and acquisition system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541355.5A CN107331144A (en) | 2017-07-05 | 2017-07-05 | Power information collecting device and acquisition system |
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| CN107331144A true CN107331144A (en) | 2017-11-07 |
Family
ID=60196218
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710541355.5A Pending CN107331144A (en) | 2017-07-05 | 2017-07-05 | Power information collecting device and acquisition system |
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| CN108051674A (en) * | 2017-11-27 | 2018-05-18 | 江阴长仪集团有限公司 | Intelligent power quantity monitoring method and intelligent electric meter |
| CN108877116A (en) * | 2018-08-10 | 2018-11-23 | 广州供电局有限公司 | Power cable anti-theft alarm device and system |
| CN109067932A (en) * | 2018-07-24 | 2018-12-21 | 广州贯行电能技术有限公司 | A kind of data collection station data transmission method and data service end without fixed IP |
| CN112118149A (en) * | 2020-08-14 | 2020-12-22 | 深圳市科陆电子科技股份有限公司 | Device testing method, electronic device, and storage medium |
| CN114373291A (en) * | 2022-01-19 | 2022-04-19 | 深圳市力合微电子股份有限公司 | Method for automatically registering G3-PLC electric meter to master station |
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Application publication date: 20171107 |