CN108646211A - A kind of ammeter communication failure monitor - Google Patents
A kind of ammeter communication failure monitor Download PDFInfo
- Publication number
- CN108646211A CN108646211A CN201810650959.8A CN201810650959A CN108646211A CN 108646211 A CN108646211 A CN 108646211A CN 201810650959 A CN201810650959 A CN 201810650959A CN 108646211 A CN108646211 A CN 108646211A
- Authority
- CN
- China
- Prior art keywords
- ammeter box
- ammeter
- box ontology
- control chip
- vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
-
- 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
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention discloses a kind of ammeter communication failure monitors, including ammeter box ontology, sliding slot is offered on the ammeter box ontology rear end face, and the ammeter box ontology is slidably mounted on by the sliding slot on sliding rail, end concave surface is symmetrically arranged with locating button at left and right sides of the sliding rail, it is installed with detector on the active pulling-door of the ammeter box ontology front end face, control chip and data collecting system are installed in the detector, the control chip is connect with the data collecting system, the data collecting system is connected with analogy signal processing unit, the present invention has small, it is easy to install, the advantages that easy networking, it can ensure the normal work of each electric elements of ammeter box body interior, avoid influencing the use of each electric elements of ammeter box body interior, increase the usability of the present apparatus.
Description
Technical field
The invention belongs to monitoring device technical fields, and in particular to a kind of ammeter communication failure monitor.
Background technology
With the development of science and technology, data center is worldwide widely disposed, the electricity consumption in data center is set
It is standby numerous, it is in large scale, it is ensured that the normal work of electrical equipment, data center need to consume a large amount of electric energy, data center
There is prodigious wastes for the calculating energy consumption of interior energy consumption for cooling and each device server, also result in prodigious electric energy and are lost in.
In addition, with the extensive use of control device and electronic device based on computer system, power load structure in electric system
It changes, certain pollution and destruction is caused to power quality, still, the more and more abundant development of electrical equipment is functional
Also increasingly stronger, electrical equipment is also higher and higher for power quality permissible accuracy, how to ensure electrical equipment in data
The normal use of the heart, and accurately metering and monitoring are made to the power consumption of each electrical equipment of data center, it is ability
Field technique personnel's urgent problem to be solved, due to using telephone wire carry out communication usually require the long period shake hands response and
Circuit continued access, communication efficiency is very low when data point is more；In addition, when concentrator number is more, the telephone wire of rental is also more,
City especially intensive in resident, the density of concentrator is very big, and the phone rates of administrative center will be quite high, in addition existing
Heat in ammeter box is not easy to be discharged, therefore can influence the normal use of electric elements in ammeter box.
Invention content
The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide a kind of ammeter communication failure monitoring
Device.
In order to solve the above technical problem, the present invention provides the following technical solutions：
A kind of ammeter communication failure monitor of the present invention, including ammeter box ontology open up on the ammeter box ontology rear end face
There is sliding slot, and the ammeter box ontology is slidably mounted on by the sliding slot on sliding rail, end concave surface at left and right sides of the sliding rail
Place is symmetrically arranged with locating button, and detector, the detection are installed on the active pulling-door of the ammeter box ontology front end face
Control chip is installed in device and data collecting system, the control chip are connect with the data collecting system, the data
Acquisition system is connected with analogy signal processing unit, the analogy signal processing unit respectively with the detector built in flame
Detecting module, smoke detection module, electric leakage detecting module, heat detection module are connected with humidity detecting module, and the flame is visited
Survey module, the smoke detection module, the electric leakage detecting module, the heat detection module and the humidity detecting module
Detection end point is respectively positioned in the ammeter box ontology, and the data collecting system includes master concentrator and several from concentrator,
The master concentrator and the filtering for being both provided with filter A and filter B out of concentrator, being arranged in the master concentrator
Device A and filter B is correspondingly connected with by twisted-pair feeder and the filter A being arranged out of concentrator and filter B, the ammeter
Be provided with heat release on case ontology top end face, the heat release include shell and it is disposed in the housing and with it is described
The vessel that ammeter box body interior communicates is provided with the opening communicated with the vessel, the appearance among the housing tip face
It is symmetrically arranged with guide groove in the rear and front end wall of top of chamber, two symmetrical lids are slidably connected in the guide groove
Plate, vessel top left and right are extended the driving screw thread for having through the cover board and being connect with the cover board screw-thread fit
Bar, the driving threaded rod left end and first motor be connected by power, vessel middle part left and right, which is extended, transverse arm, the cross
Rotatably it is provided with rotation axis among arm bottom face, the rotation axis lower end is fixedly installed positioning sleeve, left on the positioning sleeve
The right side is symmetrically arranged with flabellum, and left gear is fixedly installed in the rotation axis, and the transverse arm bottom face is located at the rotation axis right side
Side insertion is provided with the second motor, and the output shaft lower end of second motor is fixedly installed the right tooth engaged with the left gear
Wheel.
As a preferred technical solution of the present invention, the left gear is identical as the right gear volume, the transverse arm
Left and right ends are fixedly connected with vessel left and right ends wall, and the driving threaded rod right end and the vessel right end wall are rotatable
It is connected, the first motor insertion is arranged in the vessel left end wall, and the positioning sleeve is located at immediately below the opening.
As a preferred technical solution of the present invention, the sum of the distance between two described cover boards or so are more than described open
The distance of mouth in the lateral direction, the first motor and second motor are connect with the control chip.
As a preferred technical solution of the present invention, the control chip is connected with image capture module, described image
Acquisition module is high-definition camera and its acquisition port is located in the ammeter box ontology；The control chip is also associated with alarm
Device, the alarm are buzzer.
As a preferred technical solution of the present invention, the control chip passes through wireless communication module and PC receiving units
Connection；The control chip is also associated with power supply unit and storage unit；The control chip model is SN65LBC184.
As a preferred technical solution of the present invention, watch window, the sight are offered on the detector front end face
It examines and is provided with transparent glass cover in window.
The beneficial effects of the invention are as follows：
The present invention has broken the formation mode of traditional one phone of a concentrator, and by multiple concentrations of position Relatively centralized
Device forms LAN with CAN bus, and a LAN only needs a phone to be communicated with administrative center.This teaming method is on the one hand
It greatly reduces concentrator phone and leases number, greatly reduce communications cost；On the other hand, distinctive wide using CAN bus
Communication mode is broadcast, the real-time Communication for Power ability of system can be effectively improved, while having many advantages, such as small, easy to install, easy networking, also
Have and on the one hand then worked by controlling first motor and the second motor, ammeter box body interior hot gas is discharged to facilitate, from
And ensure the normal work of each electric elements of ammeter box body interior, it avoids influencing each electric elements of ammeter box body interior
Use, increase the usability of the present apparatus.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the internal framework figure of detector in the present invention；
Fig. 3 is the internal framework figure of data collecting system of the present invention；
Fig. 4 is the overall structure diagram of heat release in the present invention.
Specific implementation mode
Hereinafter, certain exemplary embodiments are simply just described.As one skilled in the art will recognize that
Like that, without departing from the spirit or scope of the present invention, described embodiment can be changed by various different modes.
Therefore, attached drawing and description are considered essentially illustrative rather than restrictive.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection, can also be communication；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or "lower"
It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " side " and " above " include fisrt feature
Right over second feature and oblique upper, or it is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature is
Two features " under ", " lower section " and " following " include fisrt feature right over second feature and oblique upper, or be merely representative of
One characteristic level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figs 1-4, a kind of ammeter communication failure monitor of the invention, including ammeter box ontology 1, the ammeter box
Sliding slot 4 is offered on 1 rear end face of ontology, and the ammeter box ontology 1 is slidably mounted on by the sliding slot 4 on sliding rail 3, it is described
3 left and right sides end concave surface of sliding rail is symmetrically arranged with locating button 5, consolidates on the active pulling-door of 1 front end face of ammeter box ontology
Dingan County is equipped with detector 2, and control chip 8 and data collecting system 9, the control chip 8 and institute are equipped in the detector 2
The connection of data collecting system 9 is stated, the data collecting system 9 is connected with analogy signal processing unit 10, at the analog signal
Manage unit 10 respectively with built in the detector 2 flame detecting module 11, smoke detection module 12, electric leakage detecting module 13,
Heat detection module 14 and humidity detecting module 15 connect, the flame detecting module 11, the smoke detection module 12, described
The detection end point of electric leakage detecting module 13, the heat detection module 14 and the humidity detecting module 15 is respectively positioned on the electricity
In electricity box ontology 1, the data collecting system 9 includes master concentrator 22 and several from concentrator 23,22 He of the master concentrator
It is described that filter A and filter B, the filter A being arranged in the master concentrator 22 and filtering are both provided with out of concentrator 23
Device B is correspondingly connected with by twisted-pair feeder and the filter A and filter B being arranged out of concentrator 23, the ammeter box ontology 1
Be provided with heat release on top end face, the heat release include shell 60 and be arranged in the shell 60 and with the electricity
The vessel 61 communicated inside electricity box ontology 1 is provided with the opening 62 communicated with the vessel 61 among 60 top end face of the shell,
It is symmetrically arranged with guide groove 63 in the rear and front end wall at 61 top of the vessel, two are slidably connected in the guide groove 63
A symmetrical cover board 65,61 top left and right of the vessel, which is extended, to be had through the cover board 65 and matches with 65 screw thread of the cover board
Close the driving threaded rod 64 of connection, 64 left end of driving threaded rod and 66 be connected by power of first motor, 61 middle part of the vessel
Left and right, which is extended, a transverse arm 67, is rotatably provided with rotation axis 68 among 67 bottom face of the transverse arm, under the rotation axis 68
End is fixedly installed positioning sleeve 69, and flabellum 70 is symmetrically set on the positioning sleeve 69, fixes and sets in the rotation axis 68
It is equipped with left gear 71,67 bottom face of the transverse arm is located at that 68 right side of the rotation axis is embedded to be provided with the second motor 73, and described the
The output shaft lower end of two motors 73 is fixedly installed the right gear 72 engaged with the left gear 71.
Preferably, the left gear 71 is identical as 72 volume of the right gear, 67 left and right ends of the transverse arm and the appearance
61 left and right ends wall of chamber is fixedly connected, and 64 right end of driving threaded rod is rotatably connected with 61 right end wall of the vessel,
The insertion of the first motor 66 is arranged in 61 left end wall of the vessel, and the positioning sleeve 69 is located at immediately below the opening 62.
Preferably, the sum of the distance between two described cover boards 65 or so be more than it is described opening 62 in the lateral direction away from
From the first motor 66 and second motor 73 are connect with the control chip 8.
Preferably, the control chip 8 is connected with image capture module 16, and described image acquisition module 16 is high-definition camera
Head and its acquire port be located in the ammeter box ontology 1；The control chip 8 is also associated with alarm 21, the alarm
21 be buzzer.
Preferably, the control chip 8 is connect by wireless communication module 19 with PC receiving units 20；The control chip
8 are also associated with power supply unit 17 and storage unit 18；The 8 model SN65LBC184 of control chip.
Preferably, watch window 7 is offered on 2 front end face of the detector, transparent glass is provided in the watch window 7
Glass lid.
Specifically, using telephone line dialing mode, three-level communication includes the MODEM between administrative center and master concentrator 22
Communication, master concentrator 22 are communicated with from the CAN bus between concentrator 23, between concentrator and analogy signal processing unit 10
RS-485 bus communications, by the modulation and demodulation function of MODEM, the remote information that can in time, easily carry out system passes
It is defeated, realize information exchange with master concentrator 22：Every master concentrator 22 can be managed and be placed in 10 km respectively by CAN bus
Slave concentrator 23 near distribution transformer is 1~110 from concentrator 23；From concentrator 23 by RS-485 buses, use
SN65LBC184 chips as defined in slave number be 1~64, therefore the number of system acquisition terminal also be 1~64, pipe
Manage transformer collecting unit and low pressure resident's acquisition terminal;Each acquisition terminal may be implemented 1~16 family resident's
Electric quantity acquisition and acquisition information transmission, effectively improve the real-time Communication for Power ability of system.
In addition, the temperature inside the ammeter box ontology 1 is detected by the heat detection module 14, it is when temperature once super
Preset temperature is crossed, then first controlling the first motor 66 by the control chip 8 works, 66 task driven of the first motor
Two cover boards 65 distinguish outside Slideslip, to open the opening 62, then control second motor 73 and work, described
Right gear 72 described in second motor, 73 task driven rotates, and the rotation of the right gear 72 drives the left gear 71 to rotate, described
The rotation of left gear 71 drives the rotation axis 68 to rotate, and the rotation of the rotation axis 68 drives the positioning sleeve 69 to rotate, to logical
Crossing the positioning sleeve 69 drives the flabellum 70 to rotate, to which 1 inside hot gas of the ammeter box ontology to be discharged, to ensure
The normal work for stating the 1 each electric elements in inside of ammeter box ontology, when 1 internal temperature of ammeter box ontology is where appropriate, then control
Make the first motor 66 work reversion so that two cover boards 65 by it is described opening 62 closing, to prevent dust or
Other things are fallen into inside ammeter box ontology 1, to influence the use of the 1 each electric elements in inside of the ammeter box ontology.
The beneficial effects of the invention are as follows：
The present invention has broken the formation mode of traditional one phone of a concentrator, and by multiple concentrations of position Relatively centralized
Device forms LAN with CAN bus, and a LAN only needs a phone to be communicated with administrative center.This teaming method is on the one hand
It greatly reduces concentrator phone and leases number, greatly reduce communications cost；On the other hand, distinctive wide using CAN bus
Communication mode is broadcast, the real-time Communication for Power ability of system can be effectively improved, while having many advantages, such as small, easy to install, easy networking, also
Have and on the one hand then worked by controlling first motor and the second motor, ammeter box body interior hot gas is discharged to facilitate, from
And ensure the normal work of each electric elements of ammeter box body interior, it avoids influencing each electric elements of ammeter box body interior
Use, increase the usability of the present apparatus.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features.All essences in the present invention
God and principle within, made by any modification, equivalent replacement, by etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of ammeter communication failure monitor, which is characterized in that including ammeter box ontology, on the ammeter box ontology rear end face
Sliding slot is offered, and the ammeter box ontology is slidably mounted on by the sliding slot on sliding rail, end at left and right sides of the sliding rail
Concave surface is symmetrically arranged with locating button, and detector is installed on the active pulling-door of the ammeter box ontology front end face, described
Control chip and data collecting system are installed, the control chip is connect with the data collecting system, described in detector
Data collecting system is connected with analogy signal processing unit, the analogy signal processing unit respectively with the detector built in
Flame detecting module, smoke detection module, electric leakage detecting module, heat detection module are connected with humidity detecting module, the fire
Flame detecting module, the smoke detection module, the electric leakage detecting module, the heat detection module and the humidity detect mould
The detection end point of block is respectively positioned in the ammeter box ontology, and the data collecting system includes master concentrator and several from concentration
Device, the master concentrator and it is described be both provided with filter A and filter B out of concentrator, be arranged in the master concentrator
Filter A and filter B is correspondingly connected with by twisted-pair feeder and the filter A being arranged out of concentrator and filter B, described
Be provided with heat release on ammeter box ontology top end face, the heat release include shell and it is disposed in the housing and with
The vessel that the ammeter box body interior communicates is provided with the opening communicated with the vessel, institute among the housing tip face
It states and is symmetrically arranged with guide groove in the rear and front end wall at the top of vessel, two are slidably connected in the guide groove symmetrically
Cover board, vessel top left and right are extended the driving screw thread for having through the cover board and being connect with the cover board screw-thread fit
Bar, the driving threaded rod left end and first motor be connected by power, vessel middle part left and right, which is extended, transverse arm, the cross
Rotatably it is provided with rotation axis among arm bottom face, the rotation axis lower end is fixedly installed positioning sleeve, left on the positioning sleeve
The right side is symmetrically arranged with flabellum, and left gear is fixedly installed in the rotation axis, and the transverse arm bottom face is located at the rotation axis right side
Side insertion is provided with the second motor, and the output shaft lower end of second motor is fixedly installed the right tooth engaged with the left gear
Wheel.
2. a kind of ammeter communication failure monitor according to claim 1, which is characterized in that the left gear and the right side
Gear volume is identical, and the transverse arm left and right ends are fixedly connected with vessel left and right ends wall, the driving threaded rod right end
It is rotatably connected with the vessel right end wall, the first motor insertion is arranged in the vessel left end wall, described fixed
Position set is located at immediately below the opening.
3. a kind of ammeter communication failure monitor according to claim 1, which is characterized in that two described cover boards or so it
Between sum of the distance be more than the opening distance in the lateral direction, the first motor and second motor with it is described
Control chip connection.
4. a kind of ammeter communication failure monitor according to claim 1, which is characterized in that the control chip is connected with
Image capture module, described image acquisition module is high-definition camera and its acquisition port is located in the ammeter box ontology；Institute
It states control chip and is also associated with alarm, the alarm is buzzer.
5. a kind of ammeter communication failure monitor according to claim 1, which is characterized in that the control chip passes through nothing
Line communication module is connect with PC receiving units；The control chip is also associated with power supply unit and storage unit；The control core
Piece model SN65LBC184.
6. a kind of ammeter communication failure monitor according to claim 1, which is characterized in that on the detector front end face
Watch window is offered, transparent glass cover is provided in the watch window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810650959.8A CN108646211A (en) | 2018-06-22 | 2018-06-22 | A kind of ammeter communication failure monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810650959.8A CN108646211A (en) | 2018-06-22 | 2018-06-22 | A kind of ammeter communication failure monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108646211A true CN108646211A (en) | 2018-10-12 |
Family
ID=63753366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810650959.8A Withdrawn CN108646211A (en) | 2018-06-22 | 2018-06-22 | A kind of ammeter communication failure monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108646211A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568398A (en) * | 2019-10-16 | 2019-12-13 | 内蒙古电力（集团）有限责任公司呼和浩特供电局 | Handheld terminal for field maintenance of electric energy meter |
-
2018
- 2018-06-22 CN CN201810650959.8A patent/CN108646211A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568398A (en) * | 2019-10-16 | 2019-12-13 | 内蒙古电力（集团）有限责任公司呼和浩特供电局 | Handheld terminal for field maintenance of electric energy meter |
| CN110568398B (en) * | 2019-10-16 | 2024-06-04 | 内蒙古电力（集团）有限责任公司呼和浩特供电局 | Electric energy meter field maintenance handheld terminal |
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Application publication date: 20181012 |