CN207115124U - A kind of wind-power box becomes measure and control device - Google Patents
A kind of wind-power box becomes measure and control device Download PDFInfo
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- CN207115124U CN207115124U CN201721095084.7U CN201721095084U CN207115124U CN 207115124 U CN207115124 U CN 207115124U CN 201721095084 U CN201721095084 U CN 201721095084U CN 207115124 U CN207115124 U CN 207115124U
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Abstract
The utility model discloses a kind of wind-power box to become measure and control device, belongs to case and becomes observation and control technology field.It includes power module and exchanges acquisition module, in addition to opens into module, outputs module, central processing module and communication network module；The power module respectively with it is described open into module, output module, exchange acquisition module, central processing module be connecteds, the power module is opened into module to described, outputs module, exchange acquisition module and central processing module power supply；The communication network module includes CAN and I2C buses, the central processing module pass through the I2C buses respectively with it is described open into module, output module, exchange acquisition module carries out communication and is connected.For prior art wind-power box become supervising device in testing and control project deficiency, operation maintenance difficulty is big the problem of, it can overcome the shortcomings of testing and control project, be easy to maintenance management.
Description
Technical field
It the utility model is related to case and become observation and control technology field, more particularly to a kind of wind-power box becomes measure and control device.
Background technology
At present, box-type substation is a kind of high-tension switch gear, distribution transformer and low-voltage distribution equipment by certain wiring
Scheme lines up that integral prefabrication is indoor, outdoor close-coupled controller switching equipment, i.e., matches somebody with somebody high powered, transformer pressure-reducing, low pressure
The functions such as electricity are organically combined, installed in a protection against the tide, antirust, dust-proof, protection against rodents, fire prevention, it is antitheft, heat-insulated, totally-enclosed,
Electromechanical integration, totally-enclosed operation, it is after civil engineering especially suitable for urban network construction and upgradation in moveable steel-structure box body
A kind of brand-new transformer station to be emerged after transformer station.Box-type substation is applied to mine, factory and enterprise, oil gas field and wind-force hair
Power station, it instead of original civil engineering power distribution room and power distribution station, turn into new complete change power distribution equipment.
Case change is the abbreviation of box step-up transformer, and wind-power box becomes measure and control device and then refers to that the box step-up transformer of wind-powered electricity generation is surveyed
Control device.Wind-power box becomes the important electrical changed and transmitted as electric energy, and its safe operation is to ensureing power system just
Often work and the quality of power supply play conclusive effect, while wind-power box change is also very valuable electric elements in itself.Wind-powered electricity generation
It is mainly to become the device for providing protection, observing and controlling and communication into wind-power box that case, which becomes measure and control device, to a certain extent, can solve wind
The monitoring and the present situation of control that electric field booster stations synthesis robot control system(RCS) can not become to wind-power box, realize the remote management that wind-power box becomes
With management mode that is automatically-monitored, and meeting wind energy project " few man on duty ".Wherein, the bone in existing wind-power box change
Dry communication network is mainly traditional Ethernet, using Ethernet carry out signal data transmission reliability and anti-interference compared with
Difference.
Chinese utility model patent, publication number：205265359U, publication date：On May 25th, 2016, disclose a kind of tool
There are the wind-powered electricity box transforming type intelligent monitoring device of communication management function, wind-power box to be provided with transformer, including monitoring host computer, communication pipe in becoming
Reason module, bicyclic self-healing optic module and data acquisition module, monitoring host computer include optoelectronic transceivers, bicyclic self-healing optic module
Including Ethernet interface, main ring, standby ring and the first GPRS (General Packet Radio Service, general grouped wireless
Service) module, communication management module includes the second GPRS module and the first bluetooth module, optoelectronic transceivers and Ethernet interface company
Connect, the first GPRS module and the second GPRS module radio communication, the first bluetooth module and the second bluetooth module radio communication, data
Acquisition module is used for three-phase voltage and three-phase current and the high-pressure side for gathering transformer for gathering the low-pressure side of transformer
Three-phase voltage and three-phase current.This wind-powered electricity box transforming type intelligent monitoring device with communication management function using observing and controlling, protection,
The mentality of designing of communication integral, the wiring of whole wind power generation unit is simplified, reduce engineering debugging and later maintenance
Workload, reduce the cost of investment of wind power station, and bicyclic self-healing optic module main ring is had no progeny or a few dresses
When putting failure, system communication is not interfered with, realizes the overall monitor become to wind-power box.Its weak point is：It is being related to industry
Using when, using double loop self-cure type Ethernet, cause the holistic cost of supervising device higher；Ethernet can not be efficiently used
Bandwidth, cause the waste of Internet resources；There is collision in Ethernet, without intrinsic certainty, cause to carry out signal using Ethernet
The reliability and antijamming capability of data transfer are poor, and can not meet the needs of process control real-time operation.
Utility model content
1. utility model technical problems to be solved
For prior art wind-power box become supervising device in testing and control project deficiency, operation maintenance difficulty is big the problem of,
The utility model provides a kind of wind-power box and becomes measure and control device, and it can overcome the shortcomings of testing and control project, be easy to maintenance management.
2. technical scheme
To solve the above problems, technical scheme provided by the utility model is：
A kind of wind-power box becomes measure and control device, including power module with exchange acquisition module, in addition to open into module, output mould
Block, central processing module and communication network module；The power module is opened into module with described respectively, outputs module, exchanges and adopt
Collect module, central processing module connection, the power module to it is described open module, output module, exchange acquisition module and in
Entreat processing module power supply；The communication network module includes CAN and I2C buses, the central processing module pass through described
I2C buses respectively with it is described open into module, output module, exchange acquisition module carries out communication and is connected.
Preferably, described open includes into module：On-off signal collecting unit and pulsed quantity input collecting unit；It is described to open
The collection position of pass amount input collecting unit includes on-load switch position, ground connection cutter position and low-side switch position, the arteries and veins
The pulse signal of momentum input collecting unit collection includes positive active electrical degree, reverse active electrical degree, positive idle electric degree and anti-
To idle electric degree pulse.
Preferably, in addition to light-coupled isolation module, the light-coupled isolation module are connected to the On-off signal collection list
It is first between the central processing module.
Preferably, the module of outputing goes out including non-ionizing energy loss outlet junctions, excessively stream one section outlet contact, two sections of excessively stream
Mouth contact, three sections of outlet junctions of excessively stream, zero-sequence current protection outlet junctions, under-voltage protection outlet junctions and overvoltage protection go out
Mouth contact.
Preferably, in addition to DC analogue quantity output module, the DC analogue quantity output module pass through CAN and institute
State central processing module and carry out communication connection.
Preferably, the communication network module includes CAN interface and I2C EBIs, described CAN and I2C
Bus is corresponding to pass through CAN interface and I respectively2C EBIs are connected with the central processing module.
Preferably, the communication network module also includes RS232 communication interfaces, Ethernet interface, optical fiber ring network interchanger
Module, WIFI communication module, GPRS communication module and ZIGBEE communication modules, are connected with the central processing module respectively
Connect.
Preferably, in addition to indicating lamp module and man-machine interface interactive module；Indicating lamp module and man-machine interface interaction mould
Block is connected with the power module and the central processing module.
Preferably, indicating lamp module includes power lights, running indicator, warning light, communication indicator lamp and transmitting-receiving lamp, power supply lamp position
In on power module, on the central processing module, communication indicator lamp is located at communication network for running indicator, warning light and transmitting-receiving lamp position
In network module.
Preferably, described man-machine interface interactive module is connected by CAN with the central processing module, power supply mould
Block is connected with man-machine interface interactive module.
3. beneficial effect
Using technical scheme provided by the utility model, compared with prior art, have the advantages that：
(1) a kind of wind-power box of the present utility model becomes measure and control device, using human-computer interface module configuration mode, man-machine interface
Design use the innovative technology of general mobile terminal (such as notebook computer, iPad, intelligent mobile phone), user can pass through
Wireless network realization is contactless to device to be checked and operates, and while efficiency is improved, strengthens security；Both avoided
Draw outside the substantial amounts of buses of CPU, improve the reliability and operability of device, and hardly increase product cost, greatly carry
The ratio of performance to price of device is risen；
(2) a kind of wind-power box of the present utility model becomes measure and control device, using reliable CAN communication at a high speed, is easy to thing
Part information quickly uploads, and enhances system response time；
(3) a kind of wind-power box of the present utility model becomes measure and control device, for the deficiency of testing and control project, fortune in current wind power plant
The unfavorable factors such as row maintenance difficulties are big, with reference to a collection measurement researched and developed on the basis of design that existing case becomes, application scheme, protect
Shield, control, communication function become intelligent measuring and control device in the wind-power box of one.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail with reference to drawings and Examples.
Embodiment 1
As shown in figure 1, a kind of wind-power box becomes measure and control device, including power module with exchange acquisition module, in addition to open into
Module, output module, central processing module and communication network module；The power module is opened into module, outputed with described respectively
Module, exchange acquisition module, central processing module connection, the power module to it is described open into module, output module, exchange adopt
Collect module and central processing module power supply；The communication network module includes CAN and I2C buses, the central processing mould
Block passes through the I2C buses respectively with it is described open into module, output module, exchange acquisition module carries out communication and is connected.
Embodiment 2
A kind of wind-power box becomes measure and control device, is further improved on the basis of embodiment 1, described open includes into module：Open
Pass amount input collecting unit and pulsed quantity input collecting unit；The collection position of the On-off signal collecting unit includes load
The position of the switch, ground connection cutter position and low-side switch position, the pulse signal of the pulsed quantity input collecting unit collection include
Positive active electrical degree, reverse active electrical degree, positive idle electric degree and reversely idle electric degree pulse.Also include light-coupled isolation module,
The light-coupled isolation module is connected between the On-off signal collecting unit and the central processing module.
Embodiment 3
A kind of wind-power box becomes measure and control device, is further improved on the basis of embodiment 1 or 2, the module of outputing includes
Non-ionizing energy loss outlet junctions, excessively stream one section outlet contact, excessively stream second stage exit contact, three sections of outlet junctions of excessively stream, zero sequence electricity
Flow protection exit contact, under-voltage protection outlet junctions and overvoltage protection outlet junctions.A kind of wind-power box becomes measure and control device also
Including DC analogue quantity output module, the DC analogue quantity output module is entered by CAN and the central processing module
Row communication connection.
Communication network module includes CAN interface and I2C EBIs, described CAN and I2Corresponding point of C buses
CAN interface and I are not passed through2C EBIs are connected with the central processing module.
Communication network module also includes RS232 communication interfaces, Ethernet interface, optical fiber ring network switch module, WIFI and led to
Module, GPRS communication module and ZIGBEE communication modules are interrogated, is connected respectively with the central processing module.
A kind of wind-power box, which becomes measure and control device, also includes indicating lamp module and man-machine interface interactive module；Indicating lamp module and people
Machine interface alternation module is connected with the power module and the central processing module.
Indicating lamp module includes power lights, running indicator, warning light, communication indicator lamp and transmitting-receiving lamp, power lights and is located at power supply
In module, on the central processing module, communication indicator lamp is located at communication network module for running indicator, warning light and transmitting-receiving lamp position
On.Man-machine interface interactive module is connected by CAN with the central processing module, and power module interacts mould with man-machine interface
Block connects.Using reliable CAN communication at a high speed, it is easy to event information quickly to upload, enhances system response time.
Embodiment 4
For the unfavorable factor such as the deficiency of testing and control project, operation maintenance difficulty in current wind power plant be big, become with reference to existing case
Design, research and develop on the basis of application scheme it is a integrate measurement, protection, control, the wind-power box of communication function become intelligence
Can measure and control device.A kind of wind-power box of the present embodiment becomes measure and control device
1600KVA and the above all types of transformers, and the real-time monitoring to box-type substation electric parameter and running status can be realized,
And data are uploaded to monitoring system；Remote monitoring is realized, is laid the foundation for digitlization, intelligent wind power plant.
Power module is designed using the installation's power source of wide scope：Input parameter：AC220~400V ± 10%, output parameter：
DC24V、2A.Other DC voltages that power module needs through being depressured anti-interference filtration output device, i.e. 5V, 3.3V and 12V.
5V and 3.3V：Working power for each processor system of the central processing module；
12V：For drive signal output and the power supply of relay；
24V：For the power supply for driving intake signal to input.
Open includes into module：A) the 16 way switch amounts input collection of definable：On-load switch position, it is grounded cutter position, is low
Press the side position of the switch；Grave gas, light gas, pressure relief valve action, the tripping operation of transformer high temperature alarm, transformer superhigh temperature, change
Depressor oil level is low to wait non electrical quantity collection；B) pulsed quantity input collection：Positive active electrical degree, reverse active electrical degree, positive idle electricity
Degree, reversely idle electric degree pulse.Wherein, electricity often increases by 0.001 degree, exports a pulse, opens the input extraction into module
Terminal is located at the front of main frame.
Outputing module has 8 road idle contact outputs of definable, and non-ionizing energy loss, excessively stream can be defined as according to different demands
One section, two sections of excessively stream, three sections of excessively stream, zero-sequence current protection, under-voltage protection, the various electrical quantity protections such as overvoltage protection go out
Mouth contact, the output leading-out terminal for outputing module are located at the front of main frame.
Exchange acquisition module：
A) input rated voltage：57.7V or 100V；
B) rated current is inputted：5A；
3 road electric currents, 4 road voltages, the virtual value of fundamental wave harmonic, active power, reactive power, the total wattful power of power factor
The calculating of rate, total reactive power, fundamental frequency, phase voltage to line voltage, calculate electric degree (positive active electrical degree, reversely active electricity
Degree, positive idle electric degree and reverse idle electric degree), power quality parameter is (negative sequence voltage, negative-sequence current, tri-phase unbalance factor, humorous
Ripple containing ratio, total harmonic distortion factor etc.).
DC analogue quantity output module：
4 tunnel 0~5V or 4~20mA signals (optional) are inputted, are sampled after isolation, output 2 0~5V of tunnel or 4~
20mA (can customize as electric current, voltage or power), substitution exchange collection transmitter.
Indicating lamp module：
The module is provided with the working condition that 8 LED are used for each main modular of instruction device altogether.Concrete meaning is as follows：
1) power lights：Display is red to represent that power module power supply is normal；
2) running indicator：Flicker represents device normal operation, no self test failure；
3) warning light：Display is red to represent that device has alarm signal generation；
4) lamp is received and dispatched：It is literary normal that green flicker represents that receiving text is normal, red flicker expression is transmitted messages；
5) indicator lamp is communicated：Flicker represents that communication is normal.
The module employs LED light-guiding pillars relatively advanced at present, and perspectivity is strong, beneficial to the resolution and sight of state instruction
Examine.
Human-computer interface module：
Device provide apolegamy based on third-party platform (Windows, Windows mobile, Android, Apple etc.)
User interface, major function is display device information in real time, by general movement or tablet device, through wireless, wired
Network is that monitoring, setting and the maintenance to device can be achieved.
Using the man-machine interface configuration mode of such a innovation, both avoided and drawn outside the substantial amounts of buses of CPU, and improved device
Reliability and operability, and hardly increase product cost, greatly improve the ratio of performance to price of device.
A kind of wind-power box of the present embodiment becomes the major function of measure and control device：
1st, measurement and calculating：
Digital quantity part：
Collection digital quantity includes：35kV on-load switch position signallings；690V low-voltage circuit breaker position signallings；Low pressure is kept apart
Close fuse group position signalling；It is small to be spaced apart position signalling；Fuse blows signal；State of box type substation door etc..
Of ac part：
Of ac input includes 4 road voltages, 3 road electric currents：UA、UB、UC、U0、IA、IB、IC.Intelligent AC module is with weekly
The point sampling of ripple 64, and take automatic frequency tracking to sample, results of calculation is output to 63 subharmonic, and provides phase voltage to line
Voltage, the non-equilibrium state (positive sequence, negative phase-sequence, zero sequence) of voltage and current, active power, reactive power, power factor, electric degree etc.
Calculating and power quality analysis.
2nd, protect：
Non-electric quantity is protected：Transformer Heavy Gas；Light transformer gas；Transformer high temperature；Transformer superhigh temperature；Pressure is released
Put valve events；Transformer oil level is low etc..
Electrical quantity is protected：One section of excessively stream, two sections of excessively stream, three sections of excessively stream, zero-sequence current protection, under-voltage protection, overvoltage
Protection etc..
3rd, control：
To there is the switch of electric behaviour's function to realize long-range control point and control closing operation：The interstitial content of remote control can be according to different demands
Customization.
4th, communicate：
Internal communication：
CAN and I are used between each unit module2C bus connecting communications, reliably realize each unit intermodule at a high speed
Data exchange and information transfer.
Communicated between host module (i.e. central processing module) and other single functional modules using CAN, at a high speed
Reliably realize the data exchange and information transfer between each unit module.
External communication：
RS232 mouths are used to debug in factory as device debugging mouth, using the communication between optical fiber ring network and main website.
A kind of wind-power box of the present embodiment becomes measure and control device and integrates measurement, calculating, protection, control, communication function.Adopt
With multiprocessor technology, built-in aboundresources, periphery circuit design is simple, has good interference free performance.Using module, list
The structure design of memberization clamping-rail so that casing structure compact, facilitate in-site installation with safeguarding.Each acquisition module externally with
And quarantine measures are used between each group, exclude any possible weak link and introduce external interference.All used inside device
Technical grade chip and component, there is good stability and reliability in adverse circumstances.Strong antijamming capability, pass through 10
Electromagnetic compatibility detects certification, and fast transient, static discharge, surge interference free performance reach highest ranking (IV grade) standard.
Of ac collection wide dynamic range, precision are high, and power quality analysis function can be achieved.Main measure the item has：Survey
Measure three-phase current (Ia, Ib, Ic), three-phase or line voltage, residual voltage (Ua, Ub, Uc, Uab, Ubc, Uca, U0), temperature T (members
Part, environment etc.), active-power P, reactive power Q, power factor (PF)Frequency f, positive active electrical degree+kWh, the active electricity of negative sense
Degree-kWh, positive idle electric degree+kVarh, negative sense is idle electric degree-kVarh；Power quality analysis includes calculating voltage and current
Non-equilibrium state (positive sequence, negative phase-sequence, zero sequence), the amplitude of each harmonic and phase, voltage and current total harmonic distortion etc..
Digital data acquisition is enriched with control interface, and any extended interface quantity can be configured by unit.Input, output connect
Mouth supports programming in logic and User Defined.Realize non electrical quantity and electric quantity protective control and perform function.Device has dynamic certainly
Checking functions, reliability is high, the generation for effectively preventing from judging by accident and exporting by mistake.
With analog input and output function, the data acquisition of sensor, controller is realized, integrates the work(such as transmitter
Energy.Interface quantity can be according to different demands dynamic configuration.
Communication unit also provides a variety of while providing with electric, fan monitoring system and master control system data communication
The communication interface of type, communication access and the processing function of other equipment can be achieved, support general and main flow communication protocol and association
View.
Integrated optical fiber looped network function of exchange, possesses Network Management Function.Patrolled according to monitoring system and user-defined control
Collect the remote auto control function of realizing box type power station.Complete machine quiescent dissipation is less than (about 6W).Installation's power source supports two-way input,
Blower fan output can be used to be used as working power.Device operating ambient temperature range：- 45 DEG C~+75 DEG C.
The design of man-machine interface uses the wound of general mobile terminal (such as notebook computer, iPad, intelligent mobile phone)
New technology.User can check and operate by the way that wireless network realization is contactless to device, while efficiency is improved, enhancing
Security.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, do not depart from the utility model create objective in the case of, without creativeness design
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (10)
1. a kind of wind-power box becomes measure and control device, including power module and exchange acquisition module, it is characterised in that also including opening into mould
Block, output module, central processing module and communication network module；The power module is opened into module with described respectively, outputs mould
Block, exchange acquisition module, central processing module connection, the power module to it is described open into module, output module, exchange gather
Module and central processing module power supply；The communication network module includes CAN and I2C buses, the central processing module
Pass through the I2C buses respectively with it is described open into module, output module, exchange acquisition module carries out communication and is connected.
2. a kind of wind-power box according to claim 1 becomes measure and control device, it is characterised in that described open includes into module：Open
Pass amount input collecting unit and pulsed quantity input collecting unit；The collection position of the On-off signal collecting unit includes load
The position of the switch, ground connection cutter position and low-side switch position, the pulse signal of the pulsed quantity input collecting unit collection include
Positive active electrical degree, reverse active electrical degree, positive idle electric degree and reversely idle electric degree pulse.
3. a kind of wind-power box according to claim 2 becomes measure and control device, it is characterised in that also including light-coupled isolation module,
The light-coupled isolation module is connected between the On-off signal collecting unit and the central processing module.
4. a kind of wind-power box according to claim 1 becomes measure and control device, it is characterised in that the module of outputing includes non-electrical
Protection exit contact, excessively stream one section outlet contact, excessively stream second stage exit contact, three sections of outlet junctions of excessively stream, zero-sequence current is measured to protect
Protect outlet junctions, under-voltage protection outlet junctions and overvoltage protection outlet junctions.
5. a kind of wind-power box according to claim 1 becomes measure and control device, it is characterised in that is also exported including DC analogue quantity
Module, the DC analogue quantity output module carry out communication with the central processing module by CAN and are connected.
6. a kind of wind-power box according to claim 5 becomes measure and control device, it is characterised in that the communication network module includes
CAN interface and I2C EBIs, described CAN and I2C buses are corresponding to pass through CAN interface and I respectively2C is total
Line interface is connected with the central processing module.
7. a kind of wind-power box according to claim 6 becomes measure and control device, it is characterised in that the communication network module is also wrapped
Include RS232 communication interfaces, Ethernet interface, optical fiber ring network switch module, WIFI communication module, GPRS communication module and
ZIGBEE communication modules, it is connected respectively with the central processing module.
8. a kind of wind-power box according to claim 1 becomes measure and control device, it is characterised in that also including indicating lamp module and people
Machine interface alternation module；Indicating lamp module and man-machine interface interactive module with the power module and the central processing module
It is connected.
9. a kind of wind-power box according to claim 8 becomes measure and control device, it is characterised in that indicating lamp module includes power supply
Lamp, running indicator, warning light, communication indicator lamp and transmitting-receiving lamp, power lights are located on power module, running indicator, warning light and transmitting-receiving
In on the central processing module, communication indicator lamp is located in communication network module lamp position.
10. a kind of wind-power box according to claim 8 becomes measure and control device, it is characterised in that described man-machine interface interaction
Module is connected by CAN with the central processing module, and power module is connected with man-machine interface interactive module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721095084.7U CN207115124U (en) | 2017-08-30 | 2017-08-30 | A kind of wind-power box becomes measure and control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721095084.7U CN207115124U (en) | 2017-08-30 | 2017-08-30 | A kind of wind-power box becomes measure and control device |
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| CN207115124U true CN207115124U (en) | 2018-03-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784017A (en) * | 2019-10-31 | 2020-02-11 | 国网山东省电力公司东营供电公司 | Intelligent detection device and method for distribution transformer based on real-time data acquisition |
| CN114039418A (en) * | 2021-10-29 | 2022-02-11 | 韩海泉 | Comprehensive protection system for unit box transformer substation |
-
2017
- 2017-08-30 CN CN201721095084.7U patent/CN207115124U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784017A (en) * | 2019-10-31 | 2020-02-11 | 国网山东省电力公司东营供电公司 | Intelligent detection device and method for distribution transformer based on real-time data acquisition |
| CN114039418A (en) * | 2021-10-29 | 2022-02-11 | 韩海泉 | Comprehensive protection system for unit box transformer substation |
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Effective date of registration: 20200805 Address after: 518000 venture capital building 2207, No.9 Tengfei Road, huanggekeng community, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Runshida Engineering Co., Ltd Address before: North Street Center in Shanxi province 030006 Taiyuan city high tech Development Zone No. 3 Building 10 morning rain Patentee before: NANZI JINNENG AUTOMATION Co.,Ltd. |
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