CN205500486U - A monitoring devices that is used for elevator dimension guarantor to supervise automatically - Google Patents
A monitoring devices that is used for elevator dimension guarantor to supervise automatically Download PDFInfo
- Publication number
- CN205500486U CN205500486U CN201620264891.6U CN201620264891U CN205500486U CN 205500486 U CN205500486 U CN 205500486U CN 201620264891 U CN201620264891 U CN 201620264891U CN 205500486 U CN205500486 U CN 205500486U
- Authority
- CN
- China
- Prior art keywords
- maintenance
- elevator
- current transformer
- repair
- processing unit
- 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
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model relates to a monitoring devices that is used for elevator dimension guarantor to supervise automatically compares with prior art and has solved the defect that elevator dimension guarantor is difficult to automatic supervision. The utility model discloses a current transformer, elevator controller's IO port and safety loop's interconnecting link pass current transformer's annular magnetic core, and current transformer is located elevator controller and overhauls between the switch, and current transformer's signal output part and elevator controller 0's elevator controller 1 link to each other. The utility model discloses a with elevator control system's non - contact, thus indirect the detection overhaul the on off state and confirm whether the elevator ties up the guarantor, do not produce any influence to original elevator control system, and the implementation process is convenient reliable.
Description
Technical field
This utility model relates to elevator repair and maintenance technical field, a kind of prison automatically supervised for elevator repair and maintenance
Survey device.
Background technology
In short supply along with country's enforcement of urbanization strategy and urban land resource, skyscraper is increasing, people
More and more higher to the degree of dependence of elevator, elevator become modern society's indispensable public transportation instrument of life it
One, the safety of elevator has become as focus of concern.The operation safety of elevator daily repair and maintenance quality direct relation elevator,
Owing to lacking effective repair and maintenance regulatory measure, repair and maintenance not in time, do as a mere formality by repair and maintenance, and repair and maintenance phenomenon not in place is of common occurrence, this
Become one of key factor of causing elevator faults and accident.
Number of patent application is the technical scheme of 201510002028.3, by monitoring repair and maintenance personnel at machine room, car and the end
The access time in hole, and inspection switch signal, layer door trip signal and the pit emergency stop switch signal in electric life controller
Mode supervises elevator repair and maintenance process.But, each switching signal in the acquisition module related in this technology, in parallel side
Formula accesses original apparatus for controlling elevator, and this access way needs to obtain the license of elevator producer and interested regulatory authorities, if
Affect the electrical connection of original apparatus for controlling elevator, can run to elevator on the contrary and bring great potential safety hazard.Additionally, at machine
Room, car and pit installation personnel detector are not only constructed trouble, also can introduce safety problem.
In the technical scheme that number of patent application is 201410730028.0, when repair and maintenance personnel carry out customary repair and maintenance, pass through
RFID module verifies identity the typing repair and maintenance log information of repair and maintenance personnel, and utilizes communication module to be uploaded to Background control mould
Block, by using by the way of RFID repair and maintenance attendance card, record elevator repair and maintenance information automatically, it is to avoid repair and maintenance personnel fake and do not press
The situation of Shi Jinhang repair and maintenance.But, practical operation easily occurring, repair and maintenance attendance card is lost, leaves behind card, forgotten situations such as swiping the card, this
A lot of inconvenience is brought to repair and maintenance management and repair and maintenance personnel.It addition, also technology proposes to use GPS mode to supervise repair and maintenance personnel positioning
Pipe, but this mode due to impersonality and relates to individual privacy, it is also difficult to it is applied to reality.
How to develop a kind of device that can elevator repair and maintenance process be effectively supervised to have become as and need solution badly
Technical problem.
Utility model content
The purpose of this utility model is to be difficult to the defect automatically supervised to solve elevator repair and maintenance in prior art, it is provided that one
Kind of the monitoring device automatically supervised for elevator repair and maintenance is to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of monitoring device automatically supervised for elevator repair and maintenance, including electric life controller, processing unit, inspection switch and
Safety return circuit, the I/O port of electric life controller is connected with safety return circuit, and inspection switch is serially connected in electric life controller I/O port and peace
On the connection line of full loop,
Also including current transformer, the I/O port of electric life controller and the connection line of safety return circuit are through current transformer
Toroidal core, current transformer between electric life controller and inspection switch, the signal output part of current transformer and place
The signal input part of reason unit is connected.
Described current transformer is open-close type current transformer.
Described current transformer is enclosed type electric current transformer.
Also include that supervising platform, the data output end of described processing unit are connected with the data input pin of supervising platform.
Described processing unit includes pretreatment circuit, AD conversion module, wireless transport module and MCU, described electric current
The signal output part of transformer is connected with the signal input part of pretreatment circuit, and the data output end of pretreatment circuit is turned by AD
Die change block is connected with the data input pin of MCU, and the data output end of MCU carries out wireless by wireless transport module with supervising platform
Data cube computation.
Beneficial effect
A kind of monitoring device automatically supervised for elevator repair and maintenance of the present utility model, compared with prior art by using
With the cordless of apparatus for controlling elevator, indirect detection inspection switch state is so that it is determined that whether elevator carries out repair and maintenance, to former
There is apparatus for controlling elevator not produce any impact, and implementation process is simple and reliable.This utility model can be to repair and maintenance cycle and dimension
Protect two important indicators of duration to add up and manage, thus provide real repair and maintenance data to make reference, it is simple to specification elevator
Repair and maintenance system, improves the repair and maintenance quality of elevator, reduces the security incident of elevator.
Accompanying drawing explanation
Fig. 1 is circuit connection structure block diagram of the present utility model；
Fig. 2 is the circuit connection structure block diagram of processing unit in this utility model；
Fig. 3 is the method flow diagram involved by this utility model；
Wherein, 1-electric life controller, 2-processing unit, 3-inspection switch, 4-safety return circuit, 5-current transformer, 6-prison
Pipe platform, 21-pretreatment circuit, 22-AD modular converter, 23-MCU, 24-wireless transport module.
Detailed description of the invention
By making, architectural feature of the present utility model and effect of being reached are had a better understanding and awareness, in order to relatively
Good embodiment and accompanying drawing coordinate detailed description, are described as follows:
As it is shown in figure 1, a kind of monitoring device automatically supervised for elevator repair and maintenance described in the utility model, including elevator
Controller 1, processing unit 2, inspection switch 3 and safety return circuit 4, electric life controller 1 is the control parts of elevator, safety return circuit 4
The circuit loop that elevator halt uses is kept for elevator maintenance when overhauling.The I/O port of electric life controller 1 and safety return circuit 4 phase
Even, inspection switch 3 is serially connected on the connection line of electric life controller 1IO port and safety return circuit 4, is controlled by inspection switch 3
The state of elevator, i.e. selects elevator to be in normal Standby state or maintenance stoppage in transit state.
The data output end of processing unit 2 is connected with the data input pin of supervising platform 6, and the signal of current transformer 5 is defeated
Go out end to be connected with the signal input part of processing unit 2.Processing unit 2 is for judging to control parts, and it can use in prior art
Control structure and method, as in figure 2 it is shown, processing unit 2 includes pretreatment circuit 21, AD conversion module 22, is wirelessly transferred mould
Block 24 and MCU23.The signal output part of current transformer 5 is connected with the signal input part of pretreatment circuit 21, current transformer 5
The induced signal value obtained is sent to processing unit 2.The data output end of pretreatment circuit 21 by AD conversion module 22 with
The data input pin of MCU23 is connected, and pretreatment circuit 21 and AD conversion module 22 carry out pre-place to the induced signal value got
After reason and analog-to-digital conversion, send MCU23 to.The data output end of MCU23 is carried out with supervising platform 6 by wireless transport module 24
Wireless data connects, and result is sent to supervising platform 6 by wireless transport module 24 by MCU23, on supervising platform 6 in
Existing.
Current transformer 5 is for sensing the electric current on the connection line between electric life controller 1 and safety return circuit 4, elevator
The connection line of the I/O port of controller 1 and safety return circuit 4 is through the toroidal core of current transformer 5, and current transformer 5
Between electric life controller 1 and inspection switch 3, current transformer 5 senses corresponding induced signal value.Current transformer 5
Can be open-close type current transformer, open-close type current transformer can conveniently be installed, directly by current transformer 5 during use
Toroidal core buckle is opened, and is placed in toroidal core by the connection line of electric life controller 1 with safety return circuit 4, then is closed by buckle
Close, finally open-close type current transformer is fixed on the casing in elevator control cabinet.But open-close type current transformer generally can
Leakage field situation occur, the mensuration of induced signal value be there will be certain error, therefore current transformer 5 can also be enclosed type electric
Current transformer, the connection line of electric life controller 1 and safety return circuit 4 is through the toroidal core of current transformer 5.During installation, first
Enclosed type electric current transformer is fixed on the casing in elevator control cabinet, then by inspection switch 3 connection to elevator control
The terminal of device 1IO mouth processed disassembles, then is passed from enclosed type electric current transformer toroidal core by inspection switch 3 circuit, finally will
Inspection switch 3 circuit is installed by electric life controller 1IO mouth terminal corresponding before dismounting.
Processing unit 2 can use control method of the prior art, i.e. has induced signal by current transformer 5 sensing
By then illustrating to be currently path, non-inductive signal is current for open circuit by then explanation；Or in processing unit 2, set fixing threshold
Value, is more than threshold value when current transformer 5 records induced signal, then explanation has electric current to pass through, and is currently at inspecting state；Work as electric current
Transformer 5 records induced signal and is less than threshold value, then explanation no current passes through, and is currently at normal operating condition.
But in elevator technology is applied, owing to it exists two technical characteristics, though control determination methods of the prior art
May be used for the judgement of inspecting state and normal condition, but it exists drawback.Its main cause is as follows:
1, the I/O port of electric life controller 1 is with on the connection line of safety return circuit 4, and produced induced signal value is based on difference
Elevator know from experience and produce the change of divergence, therefore cannot provide a fixing threshold value for different elevator individualities and unify
Setting, if providing uniform threshold, will certainly cause condition adjudgement that mistake occurs；
2, the inspection switch 3 used on elevator is slightly different with the switch of use in life, and inspection switch 3 is opened for selection
Closing, inspection switch 3 selects between A loop and B loop, then electric life controller 1 and the connection line conduction path of safety return circuit 4
Change, thus the signal of inspection switch 3 sensing changes.Inspection switch 3 is broadly divided into 2 types, the first type
When opening for inspection switch 3, electric life controller 1 turns on the connection line of safety return circuit 4；The second type is inspection switch 3
During closedown, electric life controller 1 turns on the connection line of safety return circuit 4；
3, current transformer 5 senses the signal value of electric life controller 1 and the connection line of safety return circuit 4, by external environment
Impact, such as temperature etc., divides the fluctuation having little scope.
Therefore these characteristics used for elevator, in order to preferably ensure the accuracy of condition adjudgement, then need to add
Threshold value determines and judges this two step with inspection switch 3 characteristic.
As it is shown on figure 3, also provide for the monitoring method of a kind of monitoring device automatically supervised for elevator repair and maintenance at this, including
Following steps:
The first step, the monitoring of repair and maintenance record, processing unit 2 monitors whether current elevator carries out repair and maintenance, and by repair and maintenance record
Send supervising platform 6 to.It specifically comprises the following steps that
(1) determination of threshold value Vs is set.Owing to elevator body difference can bring the difference of induced signal value, it is therefore desirable to
Its threshold value Vs is reset for each elevator body before using.Current transformer 5 detects sense during inspection switch 3 open mode
Induction signal value V1 also passes to processing unit 2, and current transformer 5 detects current transformer sensing during inspection switch 3 closed mode
Signal value V2.Current transformer sense when induced signal value V1 during inspection switch 3 open mode and inspection switch 3 closed mode
Both induction signal values V2 are preferably distinguished, and two values differ greatly, such as induced signal value V1(sense during inspection switch 3 open mode
Induction signal value V2) may be 3.6, induced signal value V2(induced signal value V1 during inspection switch 3 closed mode) may be then
0.3, the induced signal value of both inspection switch 3 different conditions therefore can be directly distinguished by processing unit 2.Here, by
In the use characteristic of inspection switch 3, inspection switch 3 open mode does not represent the connection of its electric life controller 1 and safety return circuit 4
Circuit is in repair and maintenance state；Inspection switch 3 is closed at the connection line the most not representing its electric life controller 1 and safety return circuit 4
In holding state, the ratio combining induced signal value V1 and induced signal value V2 is needed just to can determine that.
Calculating and set threshold value Vs, its computing formula is as follows:
Vs=(V1+V2)/2。
Here, threshold value Vs takes induced signal value V1 and the meansigma methods of induced signal value V2, overcome induced signal value
The problem having the fluctuation of little scope.Based on upper example, when induced signal value V1 be 3.6, induced signal value V2 be 0.3 time, its threshold value
Vs is 1.95, in actual use, even if the actual sensed signal value V1 floating recorded is 3.8 or induced signal value V2 is floated and is
0.5, it is also in the range of the threshold monitor of threshold value Vs, and the little scope fluctuation being defined as induced signal value of threshold value Vs provides superfluous
Complementary space.
(2) current transformer 5 detects current induced signal value V in real time, current transformer 5 record electric life controller 1 with
The connection line of safety return circuit 4 induced signal value under different circuit.
(3) judgement of inspecting state, judges to be currently inspecting state by induced signal value or normal use (is treated
Machine) state.Processing unit 2 is according to when induced signal value V1 during inspection switch 3 open mode and inspection switch 3 closed mode
The fiducial value of induced signal value V2, carries out the judgement of inspecting state.
A, at V1 > V2 time, induced signal value V1 when now may determine that inspection switch 3 open mode be connection line inspection
Repairing state, its induced signal value is higher；Current transformer induced signal value V2 during inspection switch 3 closed mode is connection line
Holding state, its induced signal value is relatively low, and this measure purpose is the use feature of trouble hunt ing switch 3.Put before this, if V > Vs
Then current inspection switch 3 is inspecting state, when V < Vs then current inspection switch 3 is normal use (standby) state.
B, at V1, < during V2, induced signal value V1 when now may determine that inspection switch 3 open mode is that connection line is treated
Machine state, its induced signal value is relatively low；Current transformer induced signal value V2 during inspection switch 3 closed mode is connection line
Inspecting state, its induced signal value is higher, and this measure purpose is similarly the use feature of trouble hunt ing switch 3.Put before this, if
V>Vs then current inspection switch 3 is normal operating condition, when V<Vs then current inspection switch 3 is inspecting state.
(4) processing unit 2 sends repair and maintenance record to supervising platform 6.
Second step, elevator repair and maintenance event is reminded.Supervising platform 6 utilizes the timing mould carried according to elevator repair and maintenance regulatory rule
Block, calculates the date of this elevator repair and maintenance next time, forms repair and maintenance reminder events, i.e. supervising platform 6 and give in time closing on the repair and maintenance date
User sends repair and maintenance prompting message.Repair and maintenance regulatory rule is according to the repair and maintenance date of supervising platform record, in conjunction with TSG T5001-
Elevator first quarter moon repair and maintenance, season repair and maintenance, repair and maintenance half a year and the year dimension that 2009 " elevator uses management and repair and maintenance maintenance rule " specify
In guarantor's cycle, to expiring, repair and maintenance event is reminded, and normal cycle repair and maintenance event carries out record, and to expired non-repair and maintenance thing
It is watchful that part carries out repair and maintenance.Wherein it is possible to arrange, the repair and maintenance event that will expire is reminded for 3 days in advance.
3rd step, the output of repair and maintenance result.If exceeding repair and maintenance time post-processing unit 2 to be still not detected by elevator and tie up
Protect, then export repair and maintenance prompting message all the time by supervising platform 6；If processing unit 2 detects that elevator has carried out repair and maintenance, then supervise
Platform 6 carries out the elevator repair and maintenance event in next repair and maintenance cycle to be reminded.Supervising platform 6 is arranged on remote port, and processing unit 2 leads to it
Cross the multiple wireless modes such as GPRS and carry out network data communication, described supervising platform 6 be have elevator repair and maintenance data base administration and
The server of services functionality, by beginning and end date and time, the foundation of supervising platform 6 real time record elevator repair and maintenance
Above-mentioned date and time is supervised by certain repair and maintenance regulatory rule.
4th step, the calculating of repair and maintenance process time T, repair and maintenance monitoring and managing method is opened according to repair and maintenance of supervising platform 6 record
Time beginning and end time, calculate the substantially duration of this repair and maintenance process, can be as the important indicator of repair and maintenance quality evaluation
One of.It specifically comprises the following steps that
(1) processing unit 2 is monitored inspection switch 3 and is first switched on the time and be recorded as these repair and maintenance time started Ts.
(2) processing unit 2 using its to supervising platform 6 submit to the time of repair and maintenance list as terminal time, due to repair and maintenance
During, have repeatedly the on and off of inspection switch 3, using time that first time inspection switch 3 is opened as this
Repair and maintenance time started Ts, to submit to the time of repair and maintenance list as terminal time on supervising platform 6, supervising platform 6 of retrodicting is remembered
The time that the last inspection switch 4 of record is closed.Based on pushing away the inspection switch 3 last shut-in time before terminal time, with
This time is as this repair and maintenance end time Te.
(3) calculating repair and maintenance process time T, its computing formula is as follows:
T=Te-Ts。
This utility model implementation process is simple and convenient, can automatically and accurate recording elevator repair and maintenance date and time, can be right
Repair and maintenance cycle and two important indicators of repair and maintenance duration are added up and are managed.Of the present utility model practicing can be with specification elevator
Repair and maintenance system, improve the repair and maintenance quality of elevator, thus reduce the security incident of elevator.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Simply principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model also has respectively
Planting changes and improvements, these changes and improvements both fall within the range of claimed this utility model.This utility model requirement
Protection domain defined by appending claims and equivalent thereof.
Claims (5)
1. the monitoring device automatically supervised for elevator repair and maintenance, opens including electric life controller (1), processing unit (2), maintenance
Closing (3) and safety return circuit (4), the I/O port of electric life controller (1) is connected with safety return circuit (4), and inspection switch (3) is serially connected in electricity
On the connection line of ladder controller (1) I/O port and safety return circuit (4), it is characterised in that:
Also include that current transformer (5), the I/O port of electric life controller (1) pass electric current with the connection line of safety return circuit (4)
The toroidal core of transformer (5), current transformer (5) is positioned between electric life controller (1) and inspection switch (3), Current Mutual Inductance
The signal output part of device (5) is connected with the signal input part of processing unit (2).
A kind of monitoring device automatically supervised for elevator repair and maintenance the most according to claim 1, it is characterised in that: described
Current transformer (5) is open-close type current transformer.
A kind of monitoring device automatically supervised for elevator repair and maintenance the most according to claim 1, it is characterised in that: described
Current transformer (5) is enclosed type electric current transformer.
A kind of monitoring device automatically supervised for elevator repair and maintenance the most according to claim 1, it is characterised in that: also include
Supervising platform (6), the data output end of described processing unit (2) is connected with the data input pin of supervising platform (6).
A kind of monitoring device automatically supervised for elevator repair and maintenance the most according to claim 4, it is characterised in that: described
Processing unit (2) includes pretreatment circuit (21), AD conversion module (22), wireless transport module (24) and MCU(23), described
The signal output part of current transformer (5) is connected with the signal input part of pretreatment circuit (21), the number of pretreatment circuit (21)
According to outfan by AD conversion module (22) and MCU(23) data input pin be connected, MCU(23) data output end pass through nothing
Line transport module (24) carries out wireless data with supervising platform (6) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620264891.6U CN205500486U (en) | 2016-04-01 | 2016-04-01 | A monitoring devices that is used for elevator dimension guarantor to supervise automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620264891.6U CN205500486U (en) | 2016-04-01 | 2016-04-01 | A monitoring devices that is used for elevator dimension guarantor to supervise automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205500486U true CN205500486U (en) | 2016-08-24 |
Family
ID=56734043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620264891.6U Active CN205500486U (en) | 2016-04-01 | 2016-04-01 | A monitoring devices that is used for elevator dimension guarantor to supervise automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205500486U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752784A (en) * | 2016-04-01 | 2016-07-13 | 安徽中科智能高技术有限责任公司 | Monitoring device and method for automatically monitoring elevator maintenance |
| CN108639889A (en) * | 2018-07-19 | 2018-10-12 | 广州瓦良格机器人科技有限公司 | A kind of elevator cloud monitoring system based on non-invasive sensors |
| US10745244B2 (en) | 2017-04-03 | 2020-08-18 | Otis Elevator Company | Method of automated testing for an elevator safety brake system and elevator brake testing system |
| CN115231406A (en) * | 2022-07-14 | 2022-10-25 | 日立楼宇技术（广州）有限公司 | Elevator maintenance method, device, equipment and storage medium |
| CN117864891A (en) * | 2024-01-19 | 2024-04-12 | 广州励心物联科技有限公司 | Non-invasive elevator system signal state detection device and method |
-
2016
- 2016-04-01 CN CN201620264891.6U patent/CN205500486U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752784A (en) * | 2016-04-01 | 2016-07-13 | 安徽中科智能高技术有限责任公司 | Monitoring device and method for automatically monitoring elevator maintenance |
| CN105752784B (en) * | 2016-04-01 | 2018-09-28 | 安徽中科福瑞科技有限公司 | A kind of monitoring method for the monitoring device supervised automatically for elevator maintenance |
| US10745244B2 (en) | 2017-04-03 | 2020-08-18 | Otis Elevator Company | Method of automated testing for an elevator safety brake system and elevator brake testing system |
| CN108639889A (en) * | 2018-07-19 | 2018-10-12 | 广州瓦良格机器人科技有限公司 | A kind of elevator cloud monitoring system based on non-invasive sensors |
| CN115231406A (en) * | 2022-07-14 | 2022-10-25 | 日立楼宇技术（广州）有限公司 | Elevator maintenance method, device, equipment and storage medium |
| CN115231406B (en) * | 2022-07-14 | 2023-08-08 | 日立楼宇技术（广州）有限公司 | Maintenance method, device and equipment for elevator and storage medium |
| CN117864891A (en) * | 2024-01-19 | 2024-04-12 | 广州励心物联科技有限公司 | Non-invasive elevator system signal state detection device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205500486U (en) | A monitoring devices that is used for elevator dimension guarantor to supervise automatically | |
| CN105752784B (en) | A kind of monitoring method for the monitoring device supervised automatically for elevator maintenance | |
| CN202372551U (en) | Electric larceny preventing intelligent remote check device | |
| CN201145918Y (en) | Networking safety door inhibition apparatus | |
| CN105182032B (en) | Electricity meter box intelligent management system | |
| CN203616367U (en) | An anti-electricity-stealing metering cabinet | |
| CN110187235A (en) | Distributed power line fault positioning system and method based on traveling wave speed dynamic measurement | |
| CN205892393U (en) | Closed monitored control system of construction elevator guard gate | |
| CN201600423U (en) | Intelligent grounding wire detecting device | |
| CN110084946B (en) | System and method for five-prevention locking based on wearable equipment | |
| CN105227402A (en) | The integrated method of testing of a kind of intelligent substation many stipulations communication | |
| CN106487004B (en) | One electrical secondary system of intelligent substation runs hidden danger Intelligent drainage checking method | |
| CN107093017B (en) | The business datum acquisition methods and its device and system of power-off event | |
| CN201518041U (en) | Electricity monitoring apparatus | |
| CN110703161A (en) | Distribution lines fuse on-line monitoring system | |
| CN105092918A (en) | Electricity stealing prevention system and electricity stealing prevention method in allusion to high-risk electricity stealing users | |
| CN103376784A (en) | Intelligent remote transformer substation monitoring system | |
| CN105092917A (en) | Electricity theft prevention system | |
| CN210379921U (en) | Electricity meter box capable of preventing electricity theft | |
| CN106532955A (en) | Implementation method for remote measurement identification function of centralized monitoring transformer station | |
| CN103888236A (en) | Clock synchronization monitoring method applicable to intelligent substation | |
| CN104422834A (en) | Power grid safety supervision detection device based on intelligent electric meter | |
| CN109963248B (en) | Audio system with loudspeaker self-checking function and working method thereof | |
| CN110264587A (en) | The smart lock control method and device of substation's bin | |
| CN207068085U (en) | One kind is applied to underground power station intelligent alarm gate control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170830 Address after: 230088, Anhui Hefei high tech Zone, science Road, 100, Zhongke intelligence building, third floor Patentee after: Anhui Zhongke Furui Technology Co. Ltd. Address before: 230088 No. 100 science Avenue, hi tech Zone, Anhui, Hefei Patentee before: Anhui Zhongke Intelligent Hi-Tech Co., Ltd. |