CN207397061U - Intelligent electrical cabinet based on wireless internet of things - Google Patents
Intelligent electrical cabinet based on wireless internet of things Download PDFInfo
- Publication number
- CN207397061U CN207397061U CN201721251204.8U CN201721251204U CN207397061U CN 207397061 U CN207397061 U CN 207397061U CN 201721251204 U CN201721251204 U CN 201721251204U CN 207397061 U CN207397061 U CN 207397061U
- Authority
- CN
- China
- Prior art keywords
- module
- things
- current
- arm processor
- wireless internet
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of intelligent electrical cabinets based on wireless internet of things, the front end face of babinet is equipped with emergency switch module, touch screen and Fingerprint Identification Unit, emergency switch module includes master switch and multiple branch switches, the top end face of babinet is equipped with incoming line and antenna, the bottom face of babinet is equipped with multiple line outlets, and babinet is internally provided with residual current transformer, multiple current transformers, temperature sensor, leakage switch module, current-voltage transformer, central control module and electric control lock；Central control module includes multiple digital analog converters, timer, PLC, MAX232 chip and wireless narrowband communication module, and wireless narrowband communication module includes RS485 interface chips, arm processor, encrypting module, MESH chips, GPRS communication module and SIM card.The utility model can effectively prevent electrical safety accident and occur, protect electrical equipment, save electric energy.
Description
Technical field
The utility model is related to electronic box field, more particularly to a kind of intelligent electrical cabinet based on wireless internet of things.
Background technology
At present, the electricity consumption datas sensor such as residual current, electric current, temperature, electric arc in the market, is all the split in addition installed additional
Formula instrument installs the place needed at the scene, less beautiful.Either slave device is installed, and maintaining etc. is all very numb
It is tired.And interface standard is not unified, and line interface is more, and the number for the failure that causes to go wrong is more frequent, cost
It is higher.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of the prior art, provide it is a kind of can be effective
Prevent the intelligent electrical cabinet based on wireless internet of things that electrical safety accident occurs, protects electrical equipment, saving electric energy.
Technical solution is used by the utility model solves its technical problem：Construct a kind of intelligence based on wireless internet of things
Energy electronic box, including babinet, the front end face of the babinet is equipped with emergency switch module, touch screen and Fingerprint Identification Unit, described tight
Anxious switch module includes master switch and multiple branch switches, and the top end face of the babinet is equipped with incoming line and antenna, the case
The bottom face of body is equipped with multiple line outlets, and the number of the line outlet is equal with the number of the branch switch, the babinet
Be internally provided with residual current transformer, multiple current transformers, temperature sensor, leakage switch module, Current Voltage mutual inductance
Device, central control module and electric control lock, the residual current transformer, current transformer, temperature sensor, leakage switch mould
Block, current-voltage transformer and electric control lock are connected with the central control module, and the incoming line, which passes sequentially through, described always to be opened
It closes and residual current transformer is connected with the leakage switch module, each line outlet passes through corresponding current transformer
It being connected with the leakage switch module, the emergency switch module and Fingerprint Identification Unit are connected with the central control module,
The touch screen is connected by display interface with the central control module；
The central control module includes multiple digital analog converters, timer, PLC, MAX232 chip and wireless narrow bandpass
Module is interrogated, the wireless narrowband communication module includes RS485 interface chips, arm processor, encrypting module, MESH chips, GPRS
Communication module and SIM card, the residual current transformer, multiple current transformers, temperature sensor and current-voltage transformer
The data each gathered are transmitted to corresponding digital analog converter and are converted to digital signal, number described in the timer taken at regular intervals
Word signal, the PLC control the timer that the digital signal is passed sequentially through the MAX232 chips and RS485 interface cores
Piece is transmitted to the arm processor, asynchronous receiving-transmitting transmitter built in the arm processor, the asynchronous receiving-transmitting transmitter and institute
Encrypting module connection is stated, the encrypting module is also connected with the MESH chips and GPRS communication module respectively, and the GPRS leads to
News module is communicated by the antenna with cloud server, and the GPRS communication module is also connected with the SIM card.
In the intelligent electrical cabinet described in the utility model based on wireless internet of things, the central control module further includes
MCU, the emergency switch module and leakage switch module are connected by the MCU with the arm processor, and the fingerprint is known
Other device is connected with the arm processor.
In the intelligent electrical cabinet described in the utility model based on wireless internet of things, the RS485 interface chips respectively with
DAC pins, the ADC pins of the arm processor are connected with I/O pin.
In the intelligent electrical cabinet described in the utility model based on wireless internet of things, the wireless narrowband communication module also wraps
Reset circuit is included, the reset circuit is connected with the RESET pins of the arm processor.
In the intelligent electrical cabinet described in the utility model based on wireless internet of things, the wireless narrowband communication module also wraps
Include the EEPROM being connected with the arm processor.
It is the residual current transformer, multiple in the intelligent electrical cabinet described in the utility model based on wireless internet of things
Current transformer, temperature sensor, current-voltage transformer, MAX232 chips, RS485 interface chips and arm processor are logical
The power supply of+3.3V power supplys is crossed, PLC, MESH chip and GPRS communication module are powered by+4.0V power supplys.
In the intelligent electrical cabinet described in the utility model based on wireless internet of things, the number of the branch switch is four
It is a.
Implement the intelligent electrical cabinet based on wireless internet of things of the utility model, have the advantages that：Due to by residue
Current transformer, multiple current transformers, temperature sensor, current-voltage transformer and, leakage switch module pass through logic electricity
Road optimization fusion together, is designed to the integrated intelligent electrical cabinet based on wireless internet of things, realizes data precision and accuracy
Real-time dynamic acquisition is somebody's turn to do the intelligent electrical cabinet based on wireless internet of things and goes back fusing wireless narrowband communication module, wireless narrow bandpass simultaneously
The sensing datas such as module dynamic acquisition residual current, electric current, temperature and electric arc are interrogated, and sensing data is uploaded to high in the clouds clothes in real time
Business device is somebody's turn to do the intelligent electrical cabinet based on wireless internet of things and further comprises the functions such as the leakage switch of traditional electronic box, therefore can be effectively pre-
Anti- electrical safety accident occurs, protection electrical equipment, saving electric energy.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure of the front end face of intelligent electrical cabinet one embodiment middle case of the utility model based on wireless internet of things
Schematic diagram；
Fig. 2 is the internal structure schematic diagram of the embodiment middle case；
Fig. 3 is the structure diagram of the top end face of the embodiment middle case；
Fig. 4 is the structure diagram of the bottom face of the embodiment middle case；
Fig. 5 is the circuit block diagram of the intelligent electrical cabinet based on wireless internet of things in the embodiment.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
It, should the intelligence electricity based on wireless internet of things in intelligent electrical cabinet embodiment of the utility model based on wireless internet of things
Case includes babinet, and Fig. 1 is the structure diagram of the front end face of the present embodiment middle case.In Fig. 1, the front end face of the babinet is equipped with
Emergency switch module 1, touch screen 2 and Fingerprint Identification Unit 3, emergency switch module 1 include master switch SMPS and multiple branch switches,
In the present embodiment, the number of branch switch is four, PSS1, PSS2, PSS3 and PSS4 in this four branch switch, that is, Fig. 1,
Certainly, in practical applications, the quantity of branch switch can adjust accordingly as the case may be.When the manual emergency cut-off of needs
During general supply or when closing branch switch, the emergency switch module 1 can be used.The size of touch screen 2 is 7 cun, and band touch-control is shown
Function, can the data such as real time inspection residual current, electric current, voltage and temperature, can touch switch power supply etc..Fingerprint Identification Unit 3
Effect is unlocked by fingerprint, into line on certification etc..The front end face of the babinet is made using smooth surface PVC material.
Fig. 2 is the internal structure schematic diagram of the present embodiment middle case, and Fig. 3 is the structure of the top end face of the present embodiment middle case
Schematic diagram, Fig. 4 are the structure diagram of the bottom face of the present embodiment middle case.Referring to Fig. 1 to Fig. 4, set on the top end face of babinet
There are incoming line 4 and antenna 5, the bottom face of babinet is equipped with multiple line outlets 6, the number of line outlet 6 and the number of branch switch
Equal, in the present embodiment, the number of line outlet 6 is also four.Incoming line 4 is used as a total loop, and the R in incoming line 4 is
The main inlet wire firewire of power supply, L are the main inlet wire zero curve of power supply, and G is the main inlet wire ground wire of power supply.Four circuits are used as in four line outlets 6,
R in line outlet 6 is power outlet firewire, and L is power outlet zero curve, and G is power outlet ground wire.
In the present embodiment, babinet be internally provided with residual current transformer 7, multiple current transformers 8, temperature sensor 9,
Leakage switch module 10, current-voltage transformer 11, central control module 12 and electric control lock 13, wherein, residual current transformer
7th, current transformer 8, temperature sensor 9, leakage switch module 10, current-voltage transformer 11 and electric control lock 13 are controlled with center
Molding block 12 connects, and incoming line 4 passes sequentially through master switch SMPS and residual current transformer 7 is connected with leakage switch module 10,
Each line outlet 6 is connected by corresponding current transformer 8 with leakage switch module 10, and emergency switch module 1 and fingerprint are known
Other device 3 is connected with central control module 12.
Wherein, residual current transformer 7 is exclusively used in the acquisition of residual current, is matched with current-voltage transformer 11；
Current transformer 8 gathers for current data, the larger primary current of numerical value can be exactly converted to by certain no-load voltage ratio
The smaller secondary current of numerical value, measures, and is matched with current-voltage transformer 11.
Temperature sensor 9 is placed in the inside of babinet, for detecting the temperature inside the intelligent electrical cabinet based on wireless internet of things
Situation of change is spent, the accidents such as whether inside on fire of the intelligent electrical cabinet based on wireless internet of things can be predicted by temperature difference.
Leakage switch module 10 is mainly used for preventing the generation of electric leakage accident, and the operating principle of switch is：In an iron
There are two winding, main winding and auxiliary winding on core.Also there are two windings for main winding：Respectively input current winding and output current
Winding.Without electric leakage when, input current and output current are equal, and the vector sum of two magnetic fluxs is zero on iron core, would not pair around
Potential is induced in group, otherwise there will be induced voltage to be formed on auxiliary winding, through amplifier pushing executing mechanism, jumps switch
Lock.
Current-voltage transformer 11 be it is a kind of tested electrical parameter is converted into DC current and DC voltage, and isolate defeated
Go out the device of analog signal or digital signal, for measuring wave distortion in power grid more serious voltage or current signal, also may be used
To measure the nonsinusoidal waveforms such as square wave, triangular wave.Central control module 12 is used to read the data of above-mentioned each sensor, transmitting-receiving
Such as electric control lock 13, emergency switch module 1, the control instruction of Sofe Switch operation.
Fig. 5 is the circuit block diagram of the intelligent electrical cabinet based on wireless internet of things in the present embodiment, and central control module 12 includes
Multiple digital analog converters 21, timer 22, PLC23, MAX232 chip 24 and wireless narrowband communication module 25, wireless narrowband communication
Module 25 includes RS485 interface chips 251, arm processor 252, encrypting module 253, MESH chips 254, GPRS communication module
255 and SIM card 256, residual current transformer 7, multiple current transformers 8, temperature sensor 9 and current-voltage transformer 11 will
The data each gathered are transmitted to corresponding digital analog converter 21 and are converted to digital signal, specifically, residual current transformer 7 will
The residual current of acquisition is transmitted to corresponding digital analog converter 21 and is converted to digital signal, and current transformer 8 is by the electric current of acquisition
It is transmitted to corresponding digital analog converter 21 and is converted into digital signal, the temperature of acquisition is transmitted to corresponding number by temperature sensor 9
Mode converter 21 is converted into digital signal, and the electric arc of acquisition is transmitted to corresponding digital analog converter 21 by current-voltage transformer 11
It is converted into digital signal.
Digital signal is passed sequentially through MAX232 cores by 2 taken at regular intervals digital signal of timer 2, PLC23 control timers 22
Piece 24 and RS485 interface chips 251 are transmitted to arm processor 252, and asynchronous receiving-transmitting transmitter 259, different built in arm processor 252
Step receiving-transmitting transmitter 259 be connected with encrypting module 253, encrypting module 253 also respectively with MESH chips 254 and GPRS communication module
255 connections, GPRS communication module 255 are communicated by antenna 5 with cloud server, and GPRS communication module 255 is gone back and SIM card
256 connections.RS485 interface chips 251 are connected respectively with the DAC pins, ADC pins and I/O pin of arm processor 252.Touch-control
Screen 2 is connected by display interface with central control module 12.
As known from the above, timer 21 is periodically to residual current transformer 7, current sensor 8, Current Voltage sensor
11st, temperature sensor 9 etc. carries out data acquisition, and more than sensor spreads out of the frequency spectrum come after keeping constant+3.3V power voltage supplies
By becoming digital signal after digital-to-analogue conversion, under the control of PLC23, arm processor is sent by MAX232 chips 24 for signal
252, it is re-fed into encrypting module 253 and carries out data encryption, be finally sent into MESH chips 254 and GPRS communication module 255 enters cloud
Hold server.Control instruction can respond the originally instructions such as cloud server, mobile terminal, touch screen 2 by arm processor 252,
And carry out the control of Switching Power Supply or electric control lock 13.The utility model can effectively prevent electrical safety accident and occur, protect electricity consumption
Equipment saves electric energy.
In the present embodiment, model AT89C51 that model NE555 that timer 22 uses, PLC23 are used, RS485 connect
The model ADM3185 that mouth chip 251 uses, the model LPC2136 that arm processor 252 uses, encrypting module 253 use
Model FathOSI, MESH chip 254 use model CC2430, GPRS communication module 255 use model
SIM900.The model 93LC46 that EEPROM258 is used.
In the present embodiment, central control module 12 further includes MCU26, and emergency switch module 1 and leakage switch module 10 are equal
It is connected by MCU26 with arm processor 252, Fingerprint Identification Unit 3 is connected with arm processor 252.
In the present embodiment, wireless narrowband communication module 25 further includes reset circuit 257, reset circuit 257 and arm processor
252 RESET pins connection.Wireless narrowband communication module 25 further includes the EEPROM258 being connected with arm processor 252.
In the present embodiment, residual current transformer 7, multiple current transformers 8, temperature sensor 9, current-voltage transformer
11st, MAX232 chips 24, RS485 interface chips 251 and arm processor 252 are powered by+3.3V power supplys, PLC23, MESH
Chip 254 and GPRS communication module 255 are powered by+4.0V power supplys.
In short, intelligent electrical cabinet based on wireless internet of things can monitor residual current in circuit, electric current, temperature round-the-clockly
The variations such as degree, electric arc.When residual current, electric current, temperature are abnormal and when reaching early warning value or in circuit in protected circuit
When faulty electric arc generates, scene will all send sound-light alarm, and be shown in remote monitoring, by mobile terminal (such as：Mobile phone is micro-
Believing terminal) prompting relevant persons in charge receives warning message, and warning message can accurately quote trouble point, not allow circuit tape jam
And misoperation.The intelligent electrical cabinet based on wireless internet of things can also set in emergency circumstances automatic barrier gate.It is touched not invisible
The electricity consumption situation becomes visual digital monitoring, effective pre- anti-electric so as to which electrical safety accident is eliminated in budding state
The generation of gas security incident can protect electrical equipment, and save electric energy.
The intelligent electrical cabinet based on wireless internet of things can effectively contain the generation of electrical fire accident and electric shock accidents；To with
Electric security risk accomplishes early discovery, early prevention, early exclusion；Prevent overvoltage, overload triggers fire；Prevent line electrical leakage flows through from drawing greatly
Ignition calamity；Prevent the excessively high initiation fire of line temperature；Eliminate the fire hazard of fault electric arc.
It can be by installing the sensors such as warming, overload current, electric leakage, short circuit, fuel gas, dust in real time to electrical hidden danger
Carry out comprehensive detection；The data of detection are uploaded into cloud server in real time；Early warning is carried out by big data technology, is reduced
Rate of false alarm；Issue warning information in time；Pass through Internet of Things and cloud computing technology real-time oversight electricity consumption situation；Skill is turned to from people's air defense
It is anti-, power consumption management level is improved, reduces electrical fire risk to greatest extent, the generation of electricity consumption accident potential is reduced, reaches guarantee
The target of life and property safety.
The utility model have remote control acquisition Electrical Safety in terms of residual current, electric current, temperature, electric arc it is accurate
Data function；Traditional electronic box function is merged, user need to only use the intelligent electrical cabinet of the wireless internet of things, can use for tradition electricity
Case, installation is simple, and management is convenient；Intelligent linkage can be realized, when monitoring the data exceptions such as residual current, electric current, temperature, electric arc
When, intelligent linkage will be opened, startup is automatically brought into operation, such as fast trip.The utility model uses three floor height quality sealing metals
Box has the function of good anti-electromagnetic interference capability, closing, lightning protection, rain-proof etc..The utility model is suitable for production plant, learns
The fields such as school, high-end community family carry out Electrical Safety data acquisition, and can obtain good operation using effect.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modifications, equivalent replacements and improvements are made should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of intelligent electrical cabinet based on wireless internet of things, which is characterized in that including babinet, the front end face of the babinet is equipped with
Emergency switch module, touch screen and Fingerprint Identification Unit, the emergency switch module includes master switch and multiple branch switches, described
The top end face of babinet is equipped with incoming line and antenna, and the bottom face of the babinet is equipped with multiple line outlets, the line outlet
Number is equal with the number of the branch switch, the babinet be internally provided with residual current transformer, multiple current transformers,
Temperature sensor, leakage switch module, current-voltage transformer, central control module and electric control lock, the residual current mutual inductance
Device, current transformer, temperature sensor, leakage switch module, current-voltage transformer and electric control lock are controlled with the center
Module connects, and the incoming line passes sequentially through the master switch and residual current transformer and is connected with the leakage switch module,
Each line outlet is connected by corresponding current transformer with the leakage switch module, the emergency switch module with
Fingerprint Identification Unit is connected with the central control module, and the touch screen is connected by display interface and the central control module
It connects；
The central control module includes multiple digital analog converters, timer, PLC, MAX232 chip and wireless narrowband communication mould
Block, the wireless narrowband communication module include RS485 interface chips, arm processor, encrypting module, MESH chips, GPRS communications
Module and SIM card, the residual current transformer, multiple current transformers, temperature sensor and current-voltage transformer will be each
Corresponding digital analog converter, which is transmitted to, from the data of acquisition is converted to digital signal, number letter described in the timer taken at regular intervals
Number, the PLC controls the timer that the digital signal is passed sequentially through the MAX232 chips and RS485 interface chips biography
The arm processor, asynchronous receiving-transmitting transmitter built in the arm processor are sent to, the asynchronous receiving-transmitting transmitter adds with described
Close module connection, the encrypting module are also connected with the MESH chips and GPRS communication module respectively, and the GPRS communicates mould
Block is communicated by the antenna with cloud server, and the GPRS communication module is also connected with the SIM card.
2. the intelligent electrical cabinet according to claim 1 based on wireless internet of things, which is characterized in that the central control module
MCU is further included, the emergency switch module and leakage switch module are connected by the MCU with the arm processor, described
Fingerprint Identification Unit is connected with the arm processor.
3. the intelligent electrical cabinet according to claim 2 based on wireless internet of things, which is characterized in that the RS485 interfaces core
Piece is connected respectively with the DAC pins, ADC pins and I/O pin of the arm processor.
4. the intelligent electrical cabinet according to claim 3 based on wireless internet of things, which is characterized in that the wireless narrowband communication
Module further includes reset circuit, and the reset circuit is connected with the RESET pins of the arm processor.
5. the intelligent electrical cabinet according to claim 4 based on wireless internet of things, which is characterized in that the wireless narrowband communication
Module further includes the EEPROM being connected with the arm processor.
6. the intelligent electrical cabinet based on wireless internet of things according to claim 1 to 5 any one, which is characterized in that described
Residual current transformer, multiple current transformers, temperature sensor, current-voltage transformer, MAX232 chips, RS485 interfaces
Chip and arm processor are powered by+3.3V power supplys, and PLC, MESH chip and GPRS communication module pass through+4.0V electricity
Source powers.
7. the intelligent electrical cabinet based on wireless internet of things according to claim 1 to 5 any one, which is characterized in that described
The number of branch switch is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251204.8U CN207397061U (en) | 2017-09-27 | 2017-09-27 | Intelligent electrical cabinet based on wireless internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251204.8U CN207397061U (en) | 2017-09-27 | 2017-09-27 | Intelligent electrical cabinet based on wireless internet of things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207397061U true CN207397061U (en) | 2018-05-22 |
Family
ID=62404148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721251204.8U Active CN207397061U (en) | 2017-09-27 | 2017-09-27 | Intelligent electrical cabinet based on wireless internet of things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207397061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345993A (en) * | 2019-08-12 | 2019-10-18 | 乌鲁木齐明华智能电子科技有限公司 | A kind of intelligent terminal perceiving sensing fusion based on internet information |
| CN112099402A (en) * | 2020-09-03 | 2020-12-18 | 湖南小快智造电子科技有限公司 | Thing networking electronic box |
-
2017
- 2017-09-27 CN CN201721251204.8U patent/CN207397061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345993A (en) * | 2019-08-12 | 2019-10-18 | 乌鲁木齐明华智能电子科技有限公司 | A kind of intelligent terminal perceiving sensing fusion based on internet information |
| CN112099402A (en) * | 2020-09-03 | 2020-12-18 | 湖南小快智造电子科技有限公司 | Thing networking electronic box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103066644A (en) | Vertical alternating current charging pile | |
| CN202840683U (en) | Low-voltage grid intelligent distribution transformer terminal | |
| CN115825638B (en) | Comprehensive judging system and method for single-phase earth faults of power distribution network | |
| CN207397061U (en) | Intelligent electrical cabinet based on wireless internet of things | |
| CN205620036U (en) | Dry -type transformer temperature rise detection device | |
| CN208689459U (en) | A kind of automatic Temperature and Humidity Control protection data acquisition device of high-tension switch cabinet | |
| CN204424787U (en) | Intelligent operation control device of switch cabinet | |
| CN203674567U (en) | Comprehensive distribution box | |
| CN204925226U (en) | Blocking device is gathered to high voltage live display wide region | |
| CN204441722U (en) | Intelligent electricity anti-theft JP cabinet | |
| CN101640425A (en) | Intelligent electric load management device | |
| CN201478839U (en) | Intelligent type power load management apparatus | |
| CN205039622U (en) | Remote intelligent protection metrological control device | |
| CN209608400U (en) | A kind of intelligent monitoring and controlling device applied to switchgear secondary side | |
| CN209593100U (en) | A kind of remote controlled Intelligent reclosing switching device | |
| CN209103478U (en) | Electric wiring safety intelligence monitoring and controlling instrument | |
| CN209045926U (en) | A kind of intelligent socket | |
| CN105823949A (en) | Lightning arrester online monitor | |
| CN203849804U (en) | Intelligent prepayment control device | |
| CN206259621U (en) | 10kV multifunctional controlled cabinets | |
| CN204066257U (en) | Integral remote low-voltage pre-paid measuring box equipment | |
| CN103441438A (en) | On-load capacitance regulating box-type transformer substation | |
| CN209608401U (en) | A kind of intelligence construction temporary electricity distribution box | |
| CN209471187U (en) | Metal oxide arrester intelligent wireless monitors system in a kind of station | |
| CN204287282U (en) | A kind of control device of noncontact conductor induction type button of intelligent electric energy meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |