CN106199339A - A kind of photovoltaic panel is confluxed circuit automatic matching device and method - Google Patents

A kind of photovoltaic panel is confluxed circuit automatic matching device and method Download PDF

Info

Publication number
CN106199339A
CN106199339A CN201610580010.6A CN201610580010A CN106199339A CN 106199339 A CN106199339 A CN 106199339A CN 201610580010 A CN201610580010 A CN 201610580010A CN 106199339 A CN106199339 A CN 106199339A
Authority
CN
China
Prior art keywords
main frame
far
group
binding post
circuit
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.)
Pending
Application number
CN201610580010.6A
Other languages
Chinese (zh)
Inventor
严俊
郑运洪
郭继舟
贾隽
李少祥
李德家
罗威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China First Metallurgical Group Co Ltd
Original Assignee
China First Metallurgical Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China First Metallurgical Group Co Ltd filed Critical China First Metallurgical Group Co Ltd
Priority to CN201610580010.6A priority Critical patent/CN106199339A/en
Publication of CN106199339A publication Critical patent/CN106199339A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground

Abstract

The invention discloses a kind of photovoltaic panel to conflux circuit automatic matching device and method, including device main frame and distance connection unit, device main frame includes that main frame can touch-control man machine interface, first group of main frame binding post, second group of main frame binding post, main frame PLC system, main frame marking module and main frame wireless control module;Distance connection unit includes that far-end can touch-control man machine interface, the first group far end binding post, the second group far end binding post, far-end PLC system, far-end marking module and far-end wireless control module;By the wireless connections of main frame wireless control module Yu far-end wireless control module, main frame PLC system and far-end PLC system carry out communication.Capacity of resisting disturbance is strong, without earthed system, the verification to circuit, pairing can be automatically performed, far-end PLC system can be by the circuit of successful matching or wireless control module, line information is sent to main frame PLC, automatically circuit number is printed on the line, simple to operate, improve work efficiency and wiring accuracy rate.

Description

A kind of photovoltaic panel is confluxed circuit automatic matching device and method
Technical field
The present invention relates to photovoltaic apparatus mounting technique field, be specifically related to a kind of photovoltaic panel and conflux circuit automatic matching device And method.
Background technology
The cable that confluxes in photovoltaic panel job site pairing, school line are generally used circuit tester at circuit two by two workmens End has checked one by one, then identifies to cable, needs reliable earthed system during inspection, when running into special circumstances, and ground connection During system imperfection, needing to lay special earth lead, work efficiency is relatively low.
Summary of the invention
The technical problem to be solved in the present invention is, in view of the foregoing defects the prior art has, it is provided that a kind of photovoltaic panel Conflux circuit automatic matching device and method, and capacity of resisting disturbance is strong, it is not necessary to earthed system, can be automatically performed the school to circuit Test, match, automatically circuit number is printed on the line, simple to operate, improve work efficiency and wiring accuracy rate.
The present invention solves that above-mentioned technical problem be the technical scheme is that
A kind of photovoltaic panel is confluxed circuit automatic matching device, including device main frame and distance connection unit, wherein, device master Machine includes mainframe box, and the panel of mainframe box is provided with main frame can touch-control man machine interface, first group of main frame binding post and second group Main frame binding post, is provided with main frame PLC system, main frame marking module, cell host group and main frame wireless controlled molding in mainframe box Block, main frame can be connected with main frame PLC system in touch-control man machine interface, first group of main frame binding post and the input of main frame PLC system End connect, second group of main frame binding post is connected with the outfan of main frame PLC system, the outfan of cell host group respectively with master Machine can touch-control man machine interface, main frame PLC system, main frame marking module and main frame wireless control module connect, main frame controlled in wireless Module is connected with main frame PLC system and main frame marking module respectively;
Distance connection unit includes far end box, on the panel of far end box far-end can touch-control man machine interface, first group remote Terminated line terminal and the second group far end binding post, be provided with far-end PLC system, far-end marking module, far-end electricity in far end box Pond group and far-end wireless control module, far-end can be connected with far-end PLC system in touch-control man machine interface, the first group far end binding post Being connected with the input of far-end PLC system, the second group far end binding post is connected with the outfan of far-end PLC system, far-end electricity The outfan of pond group respectively can touch-control man machine interface, far-end PLC system, far-end marking module and far-end wireless controlled molding with far-end Block connects, and far-end wireless control module is connected with far-end PLC system and far-end marking module;
By the wireless connections of main frame wireless control module Yu far-end wireless control module, main frame PLC system and far-end PLC System carries out communication, and the circuit in pair of wire connection terminals matches.
Connecing technique scheme, device main frame also includes that main frame optical-electrical converter, distance connection unit also include far-end light Electric transducer, the outfan of main frame optical-electrical converter is connected with the input of cell host group, the output of far-end optical-electrical converter End is connected with the input of far-end set of cells.
Connect technique scheme, first group of main frame binding post, second group of main frame binding post, first group far end terminals Son and the second group far end binding post are all with LED.
Use the matching method that two photovoltaic panel are implemented of above-described automatic matching device, comprise the following steps:
1) circuit that confluxed by the near-end photovoltaic panel positive pole in two photovoltaic panel is connected with second group of main frame binding post successively;
2) circuit that confluxed near-end photovoltaic panel negative pole pole is connected with first group of main frame binding post successively;
3) device for opening main frame, arranges relevant parameter;
4) circuit that confluxed by the far-end photovoltaic panel positive pole in two photovoltaic panel is connected with the second group far end binding post successively;
5) circuit that confluxed by far-end photovoltaic panel negative pole is connected with the first group far end binding post successively;
6) open distance connection unit, relevant parameter is set;
7) distance connection unit and device main frame communicate, and match circuit;
8) on the circuit of successful matching, line information is printed upon on the circuit of correspondence by marking module.
Connecing technique scheme, device main frame also includes that main frame optical-electrical converter, distance connection unit also include far-end light Electric transducer, in described step 1) before the most further comprising the steps of: by job site photovoltaic panel respectively with main frame optical-electrical converter It is connected with far-end optical-electrical converter, charges, when photovoltaic panel electricity shortage or night to cell host group and far-end set of cells respectively During construction, cell host group be can be used directly and far-end is battery-powered.
Connect technique scheme, first group of main frame binding post, second group of main frame binding post, first group far end terminals Son and the second group far end binding post are all with LED, in described step 7) in, distance connection unit and device main frame lead to Letter, matches to circuit, first group of main frame binding post, second group of main frame binding post, the first group far end binding post and The LED that in second group far end binding post, the binding post of successful matching is corresponding is lighted, in described step 8) in, it is being paired into On the circuit of merit, line information is printed upon on the circuit of correspondence by marking module, and the complete LED of marking is extinguished, and device stops work Make.
The method have the advantages that
By integrated for each parts duct device main frame and Remote Access Unit, need not carry out the most at the scene assembling wiring, This device establishes one's own system, and capacity of resisting disturbance is strong, it is not necessary to earthed system, can be automatically performed the verification to circuit, pairing, simultaneously can To edit line information as required, automatically circuit number is printed on the line, simple to operate, improve work efficiency and wiring Accuracy rate.
Accompanying drawing explanation
Fig. 1 is the front view of device main frame in the embodiment of the present invention;
Fig. 2 is the front view of distance connection unit in the embodiment of the present invention;
In figure, 1-mainframe box, 2-main frame can touch-control man machine interface, second group of main frame binding post of 3-, first group of main frame of 4- Binding post, 5-main frame LED, 6-far end box, 7-the second group far end binding post, 8-the first group far end binding post, 9- Far-end LED, 10-far-end can touch-control man machine interface.
Detailed description of the invention
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1~Fig. 2, the photovoltaic panel in the embodiment that the present invention provides is confluxed circuit automatic matching dress Putting, including device main frame and distance connection unit, wherein, device main frame includes that mainframe box 1, the panel of mainframe box 1 are provided with master Machine can 2, first group of main frame binding post 4 of touch-control man machine interface and second group of main frame binding post 3, be provided with main frame in mainframe box 1 PLC system, main frame marking module, cell host group and main frame wireless control module, main frame can touch-control man machine interface 2 and main frame PLC system connects, and first group of main frame binding post 4 is connected with the input of main frame PLC system, second group of main frame binding post 3 Being connected with the outfan of main frame PLC system, the outfan of cell host group respectively can touch-control man machine interface 2, main frame PLC with main frame System, main frame marking module and main frame wireless control module connect, and provide electric energy for this device, and main frame wireless control module is respectively It is connected with main frame PLC system and main frame marking module;
Distance connection unit include far end box 6, the panel of far end box 6 be provided with far-end can touch-control man machine interface 10, First group far end binding post 8 and the second group far end binding post 7, is provided with far-end PLC system, far-end marking mould in far end box Block, far-end set of cells and far-end wireless control module, far-end can be connected with far-end PLC system in touch-control man machine interface 10, first group Distal lugs terminal 8 is connected with the input of far-end PLC system, the second group far end binding post 7 and the output of far-end PLC system End connects, and the outfan of far-end set of cells respectively can touch-control man machine interface 10, far-end PLC system, far-end marking module with far-end Connecting with far-end wireless control module, provide electric energy for this device, far-end wireless control module is beaten with far-end PLC system and far-end Number module connects;
The circuit needing wiring photovoltaic panel is attached with corresponding binding post, by main frame wireless control module with The wireless connections of far-end wireless control module, main frame PLC system and far-end PLC system carry out communication, to respective binding post On circuit be identified pairing, the LED that after successful matching, corresponding binding post is corresponding lights, and marking module is to being paired into Line information is printed upon on corresponding circuit by the circuit of merit.
Further, second group of main frame binding post 3 and the corresponding LED of first group of main frame binding post 4 are main frame The corresponding LED of LED 5, the first group far end binding post 8 and the second group far end binding post 7 is far-end LED 9.
By integrated for each parts duct device main frame and Remote Access Unit, need not carry out the most at the scene assembling wiring, This device establishes one's own system, and capacity of resisting disturbance is strong, it is not necessary to earthed system, can be automatically performed the verification to circuit, pairing, far-end Line information can be sent to main frame PLC by the circuit of successful matching or wireless control module by PLC system, simultaneously can root Edit line information according to needs, automatically circuit number is printed on the line, simple to operate, improve work efficiency and wiring is accurate Rate.
Further, device main frame also includes that main frame optical-electrical converter, distance connection unit also include far-end opto-electronic conversion Device, the outfan of main frame optical-electrical converter is connected with the input of cell host group, and the outfan of far-end optical-electrical converter is with remote The input of end-cell group connects, and the electric energy of photovoltaic panel sorption enhanced is flowed to cell host group, enters by main frame optical-electrical converter Row stores, and the electric energy of photovoltaic panel sorption enhanced is flowed to far-end set of cells, stores, utilizes photovoltaic by far-end optical-electrical converter Plate is powered, energy-conserving and environment-protective.
Use the matching method that two photovoltaic panel are implemented of above-described automatic matching device, comprise the following steps:
1) circuit that confluxed by the near-end photovoltaic panel positive pole in two photovoltaic panel needing wiring connects with second group of main frame successively Line terminals 3 connects;
2) circuit that confluxed near-end photovoltaic panel negative pole pole is connected with first group of main frame binding post 4 successively;
3) device for opening main frame, arranges relevant parameter;
4) by need the far-end photovoltaic panel positive pole in two photovoltaic panel of wiring conflux circuit successively with the second group far end wiring Terminal 7 connects;
5) circuit that confluxed by far-end photovoltaic panel negative pole is connected with the first group far end binding post 8 successively;
6) open distance connection unit, relevant parameter is set;
7) distance connection unit and device main frame communicate, and match circuit;
8) on the circuit of successful matching, line information is printed upon on the circuit of correspondence by marking module.
Further, device main frame also includes that main frame optical-electrical converter, distance connection unit also include far-end opto-electronic conversion Device, in described step 1) before the most further comprising the steps of: by job site photovoltaic panel respectively with main frame optical-electrical converter and far-end Optical-electrical converter is connected, and charges to cell host group and far-end set of cells respectively, when photovoltaic panel electricity shortage or when carrying on construction work at night, Cell host group be can be used directly and far-end is battery-powered.
Further, first group of main frame binding post, second group of main frame binding post, first group far end binding post and Two group far end binding posts are all with LED, in described step 7) in, distance connection unit and device main frame communicate, right Circuit matches, first group of main frame binding post, second group of main frame binding post, the first group far end binding post and second group The LED that in distal lugs terminal, the binding post of successful matching is corresponding is lighted, in described step 8) in, at the line of successful matching Lu Shang, line information is printed upon on the circuit of correspondence by marking module, and the complete LED of marking is extinguished, and device quits work.
The above presently preferred embodiments of the present invention that is only, can not limit the interest field of the present invention with this certainly, Therefore the equivalence change made according to scope of the present invention patent, still belongs to protection scope of the present invention.

Claims (6)

1. a photovoltaic panel is confluxed circuit automatic matching device, it is characterised in that include device main frame and distance connection unit, its In, device main frame includes mainframe box, and the panel of mainframe box is provided with main frame can touch-control man machine interface, first group of main frame binding post With second group of main frame binding post, be provided with in mainframe box main frame PLC system, main frame marking module, cell host group and main frame without Line traffic control module, main frame can be connected with main frame PLC system in touch-control man machine interface, first group of main frame binding post and main frame PLC system The input of system connects, and second group of main frame binding post is connected with the outfan of main frame PLC system, the outfan of cell host group Can touch-control man machine interface, main frame PLC system, main frame marking module and main frame wireless control module be connected with main frame respectively, main frame Wireless control module is connected with main frame PLC system and main frame marking module respectively;
Distance connection unit includes far end box, the panel of far end box be provided with far-end can touch-control man machine interface, first group remote Terminated line terminal and the second group far end binding post, be provided with far-end PLC system, far-end marking module, far-end electricity in far end box Pond group and far-end wireless control module, far-end can be connected with far-end PLC system in touch-control man machine interface, the first group far end binding post Being connected with the input of far-end PLC system, the second group far end binding post is connected with the outfan of far-end PLC system, far-end electricity The outfan of pond group respectively can touch-control man machine interface, far-end PLC system, far-end marking module and far-end wireless controlled molding with far-end Block connects, and far-end wireless control module is connected with far-end PLC system and far-end marking module;
By the wireless connections of main frame wireless control module Yu far-end wireless control module, main frame PLC system and far-end PLC system Carrying out communication, the circuit in pair of wire connection terminals matches.
Photovoltaic panel the most according to claim 1 is confluxed circuit automatic matching device, it is characterised in that device main frame also includes Main frame optical-electrical converter, distance connection unit also includes far-end optical-electrical converter, the outfan of main frame optical-electrical converter and main frame The input of set of cells connects, and the outfan of far-end optical-electrical converter is connected with the input of far-end set of cells.
Photovoltaic panel the most according to claim 1 is confluxed circuit automatic matching device, it is characterised in that first group of main frame wiring Terminal, second group of main frame binding post, the first group far end binding post and the second group far end binding post are all with LED.
4. the matching method that two photovoltaic panel are implemented of employing automatic matching device described in claim 1, it is characterised in that Comprise the following steps:
1) circuit that confluxed by the near-end photovoltaic panel positive pole in two photovoltaic panel is connected with second group of main frame binding post successively;
2) circuit that confluxed near-end photovoltaic panel negative pole pole is connected with first group of main frame binding post successively;
3) device for opening main frame, arranges relevant parameter;
4) circuit that confluxed by the far-end photovoltaic panel positive pole in two photovoltaic panel is connected with the second group far end binding post successively;
5) circuit that confluxed by far-end photovoltaic panel negative pole is connected with the first group far end binding post successively;
6) open distance connection unit, relevant parameter is set;
7) distance connection unit and device main frame communicate, and match circuit;
8) on the circuit of successful matching, line information is printed upon on the circuit of correspondence by marking module.
Matching method the most according to claim 4, it is characterised in that device main frame also includes main frame optical-electrical converter, far End access unit also includes far-end optical-electrical converter, in described step 1) the most further comprising the steps of: by job site photovoltaic Plate is connected with main frame optical-electrical converter and far-end optical-electrical converter respectively, charges to cell host group and far-end set of cells respectively, When photovoltaic panel electricity shortage or when carrying on construction work at night, cell host group be can be used directly and far-end is battery-powered.
Matching method the most according to claim 4, it is characterised in that first group of main frame binding post, second group of main frame connect Line terminals, the first group far end binding post and the second group far end binding post are all with LED, in described step 7) in, far-end Access unit and device main frame communicate, and match circuit, first group of main frame binding post, second group of main frame terminals The LED that in son, the first group far end binding post and the second group far end binding post, the binding post of successful matching is corresponding is lighted, In described step 8) in, on the circuit of successful matching, line information is printed upon on the circuit of correspondence by marking module, and marking is complete Finishing LED to extinguish, device quits work.
CN201610580010.6A 2016-07-22 2016-07-22 A kind of photovoltaic panel is confluxed circuit automatic matching device and method Pending CN106199339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610580010.6A CN106199339A (en) 2016-07-22 2016-07-22 A kind of photovoltaic panel is confluxed circuit automatic matching device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610580010.6A CN106199339A (en) 2016-07-22 2016-07-22 A kind of photovoltaic panel is confluxed circuit automatic matching device and method

Publications (1)

Publication Number Publication Date
CN106199339A true CN106199339A (en) 2016-12-07

Family

ID=57492160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610580010.6A Pending CN106199339A (en) 2016-07-22 2016-07-22 A kind of photovoltaic panel is confluxed circuit automatic matching device and method

Country Status (1)

Country Link
CN (1) CN106199339A (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2116225U (en) * 1992-03-29 1992-09-16 任晓武 Multifunctional automatic cable alignment apparatus
CN2155573Y (en) * 1993-05-26 1994-02-09 陶河章 Cable pairing device
CN1128465A (en) * 1994-06-16 1996-08-07 克罗内有限公司 Automatic distribution device for telecommunication and data lines
CN2807505Y (en) * 2004-10-13 2006-08-16 李伟旬 Electric wire connecting junction
FR2925694B1 (en) * 2007-12-21 2010-03-05 Thales Sa DEVICE FOR TESTING AN ELECTRICAL SYSTEM AND METHOD FOR IMPLEMENTING THE DEVICE
CN201819962U (en) * 2010-10-12 2011-05-04 山东电力集团公司菏泽供电公司 Intelligent cable checker
CN102193048A (en) * 2011-05-19 2011-09-21 郭小定 Intelligent lead aligner
CN102457305A (en) * 2010-10-26 2012-05-16 致伸科技股份有限公司 Test and pairing system and method applied to production flow of wireless peripheral device
CN202758030U (en) * 2012-08-10 2013-02-27 湖南工程学院 Intelligent cable wire pairing device
CN203164350U (en) * 2013-03-29 2013-08-28 江苏省电力公司张家港市供电公司 Intelligent distribution instrument
CN103605034A (en) * 2013-12-02 2014-02-26 北京铁路信号有限公司 Device for detecting wiring of equipment cabinet
CN104865665A (en) * 2015-06-04 2015-08-26 南京丰泰通信技术股份有限公司 Intelligent fiber distribution system with function of remote control, and control method for intelligent fiber distribution system
CN105929510A (en) * 2016-07-05 2016-09-07 桂林创研科技有限公司 Optical fiber wiring device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2116225U (en) * 1992-03-29 1992-09-16 任晓武 Multifunctional automatic cable alignment apparatus
CN2155573Y (en) * 1993-05-26 1994-02-09 陶河章 Cable pairing device
CN1128465A (en) * 1994-06-16 1996-08-07 克罗内有限公司 Automatic distribution device for telecommunication and data lines
CN2807505Y (en) * 2004-10-13 2006-08-16 李伟旬 Electric wire connecting junction
FR2925694B1 (en) * 2007-12-21 2010-03-05 Thales Sa DEVICE FOR TESTING AN ELECTRICAL SYSTEM AND METHOD FOR IMPLEMENTING THE DEVICE
CN201819962U (en) * 2010-10-12 2011-05-04 山东电力集团公司菏泽供电公司 Intelligent cable checker
CN102457305A (en) * 2010-10-26 2012-05-16 致伸科技股份有限公司 Test and pairing system and method applied to production flow of wireless peripheral device
CN102193048A (en) * 2011-05-19 2011-09-21 郭小定 Intelligent lead aligner
CN202758030U (en) * 2012-08-10 2013-02-27 湖南工程学院 Intelligent cable wire pairing device
CN203164350U (en) * 2013-03-29 2013-08-28 江苏省电力公司张家港市供电公司 Intelligent distribution instrument
CN103605034A (en) * 2013-12-02 2014-02-26 北京铁路信号有限公司 Device for detecting wiring of equipment cabinet
CN104865665A (en) * 2015-06-04 2015-08-26 南京丰泰通信技术股份有限公司 Intelligent fiber distribution system with function of remote control, and control method for intelligent fiber distribution system
CN105929510A (en) * 2016-07-05 2016-09-07 桂林创研科技有限公司 Optical fiber wiring device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
徐昌华: "基于上位机控制自动接线单片机实验系统", 《现代电子技术》 *

Similar Documents

Publication Publication Date Title
WO2020181656A1 (en) Building-block type electric automobile direct-current charging facility detection device
CN109212357A (en) A kind of portable SVG power module test tooling
CN106504500A (en) Multifunctional remote wireless communication relay set based on remote radio communication relaying technique
CN108562860A (en) Electric energy meter two-way accessory power supply power consumption Auto-Test System and test method
CN208766251U (en) A kind of cable core line connector
CN203164350U (en) Intelligent distribution instrument
CN204228947U (en) A kind of single-phase real load electric energy table calibration equipment
CN103630729A (en) One-step wiring device and method for testing 1000kV lightning arrester reference voltage and leakage current
CN105783991A (en) Agricultural greenhouse environment data sensor system
CN106199339A (en) A kind of photovoltaic panel is confluxed circuit automatic matching device and method
CN207923996U (en) A kind of high-voltage acquisition module of the battery management system with flexible connecting structure
CN209117765U (en) Novel cable phase checking device
CN111929523A (en) Low-voltage transformer area topology rapid identification system
CN106647515A (en) Handheld virtual loop tester
CN105589011A (en) Missort investigation device and investigation method before installation of single-phase resident ammeter
CN110138093A (en) A kind of ammeter and transformer corresponding relationship intelligent distinguishing device, system and method
CN213521403U (en) Host device of low-voltage transformer area topology rapid identification instrument
CN210868413U (en) Charging and billing control device
CN205543129U (en) Battery maintenance appearance based on distribution automation terminal
CN204225765U (en) Horizontal screw drilling guiding device
CN207529192U (en) Central control desk is adopted in microcomputer interlocking drive
CN207281251U (en) A kind of detecting system of circuit board
CN207663018U (en) Switch the detection device of relay and its wiring
CN209117803U (en) A kind of Harding's plug correcting line machine
CN202748438U (en) Cable checking instrument

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20161207