CN106054267B - Receiving transducer in mining wireless electric wave hole - Google Patents

Receiving transducer in mining wireless electric wave hole Download PDF

Info

Publication number
CN106054267B
CN106054267B CN201610428299.XA CN201610428299A CN106054267B CN 106054267 B CN106054267 B CN 106054267B CN 201610428299 A CN201610428299 A CN 201610428299A CN 106054267 B CN106054267 B CN 106054267B
Authority
CN
China
Prior art keywords
resistance
capacitance
triode
solid
state relay
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
Application number
CN201610428299.XA
Other languages
Chinese (zh)
Other versions
CN106054267A (en
Inventor
赵兆
张仲礼
刘磊
王继矿
范涛
宁殿艳
赵睿
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.)
Xian Research Institute Co Ltd of CCTEG
Original Assignee
Xian Research Institute Co Ltd of CCTEG
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 Xian Research Institute Co Ltd of CCTEG filed Critical Xian Research Institute Co Ltd of CCTEG
Priority to CN201610428299.XA priority Critical patent/CN106054267B/en
Publication of CN106054267A publication Critical patent/CN106054267A/en
Application granted granted Critical
Publication of CN106054267B publication Critical patent/CN106054267B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/30Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with electromagnetic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Details Of Aerials (AREA)

Abstract

The invention discloses receiving transducer in a kind of mining wireless electric wave hole, the receiving transducer includes shell, magnetic antenna, control circuit, the shell is nylon material, and the head built-in magnetic antenna and control circuit of the shell, the afterbody of the shell is helicitic texture.Invention increases the detection range of Mine Wireless ripple perspective, makes the detection range of traditional Mine Wireless ripple perspective method increase to more than 200 meters;Pass through drilling, the present invention is sent to there is inside working face anomalous structure areas adjacent to carry out proximity detection, the precision of detection is added, improves the resolution ratio of Mine Wireless ripple perspective, so as to promote the development and application of radio wave exploration engineering in coal mine down-hole drilling.

Description

Receiving transducer in mining wireless electric wave hole
Technical field
The invention belongs to wireless radio wave receiver technical field in coal mine hole, and in particular to a kind of mining wireless electricity Receiving transducer in wave hole.
Background technology
In traditional Mine Wireless ripple perspective exploration, form of construction work carries out transmitting letter for the tunnel on working face one side Number, another side lane channel receiving signal, but it is subject to the explosion-proof requirement of underground coal mine product, the power of mining instrument is restricted, The radio wave power that transmitting exports is caused to be limited, signal can sharp-decay after penetrating coal seam.
The existing explosion-proof wireless wave penetration system perspective distance in coal seam of underground coal mine is generally 150 meters of left sides at present The right side, and it is mostly more than 200 meters that China newly opens coal mine working face width at present, thus traditional reception antenna to 200 meters with On relatively broad wall internal signal cannot carry out good reception, have impact on the detection of downhole wireless electric wave fluoroscopy techniques Distance.
The content of the invention
In view of this, it is a primary object of the present invention to provide receiving transducer in a kind of mining wireless electric wave hole.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:
The embodiment of the present invention provides receiving transducer in a kind of mining wireless electric wave hole, which includes shell, magnetism Antenna, control circuit, the shell are nylon material, and the head built-in magnetic antenna and control circuit of the shell are described outer The afterbody of shell is helicitic texture.
In such scheme, the center of the magnetic antenna is extended type bar magnet, exterior coiling receiving coil.
In such scheme, the control circuit includes the first triode Q1, the second triode Q2, the 3rd triode Q3, the One solid-state relay U1, the second solid-state relay U2, antenna TX, wire socket J1, the second of the first solid-state relay U1 End is connected by resistance RO with the 5th end of wire socket J1, and the 5th end of the first solid-state relay U1 passes through the second capacitance C2 is connected with antenna TX, and the 20th one end of the antenna TX is connected by the 3rd capacitance C3 with the first triode Q1, and described One end of one triode Q1 is connected with the second triode Q2, the second triode Q2 all the way through the 7th capacitance C7 and the three or three Pole pipe Q3 connections, another way are connected through the 5th resistance R5, the 6th resistance R6 with the 3rd end of the second solid-state relay U2;Described The 2nd end of two solid-state relay U2 is grounded after the 9th capacitance C9, the 7th resistance R7, the 8th resistance R8;3rd triode Third and fourth end of two-way difference connecting wire socket J1 is divided in one end of Q3 after the 8th capacitance C8, signaling conversion circuit T1, another End is connected with one end of the tenth resistance R10, the other end of the tenth resistance R10 be connected to the 6th resistance R6 and the second solid-state after Between electric appliance U2;Connect the first resistor R1 being sequentially connected in series, second resistance R2,3rd resistor R3, the connection of the 4th resistance R4 one end Between the 5th resistance R5, the 6th resistance R6, the other end is connected to the other end of the first triode Q1;The wire socket The second end of J1 is connected with the first end of the second solid-state relay U2.
In such scheme, the one of the tenth capacitance C10 is connected between the 6th resistance R6 and the second solid-state relay U2 End, the other end ground connection of the tenth capacitance C10;Is connected between one end of the 3rd triode Q3 and the 8th capacitance C8 One end of nine resistance R9, the other end ground connection of the 9th resistance R9.
In such scheme, the 11st resistance is connected between the 3rd end of the signaling conversion circuit T1 and wire socket J1 One end of R11, the other end of the 11st resistance R11 are connected to the 9th capacitance C9 in the 2nd end of the second solid-state relay U2 Between;One end of the 12nd resistance R12 is connected between the 4th end of the signaling conversion circuit T1 and wire socket J1, it is described The other end ground connection of 12nd resistance R12.
In such scheme, between the 9th capacitance C9 and the 7th resistance R7 and the tenth resistance R10 and the three or three pole Connected between the other end of pipe Q3;Between the 7th resistance R7 and the 8th resistance R8 and the 7th capacitance C7 and the three or three pole Connected between pipe Q3.
In such scheme, the second triode Q2 is connected with one end of the 5th capacitance C5, and the 5th capacitance C5's is another One end is grounded;The first triode Q1 is connected with one end of the 3rd capacitance C3, the other end ground connection of the 3rd capacitance C3;Institute State one end that the 6th capacitance C6 is connected between tie point and first resistor R1 between the 5th resistance R5 and the 6th resistance R6, institute State the other end ground connection of the 6th capacitance C6.
In such scheme, one end of the first capacitance C1 is connected between the tenth one end of the second capacitance C2 and antenna TX, The other end of the first capacitance C1 is connected and is grounded with the 12nd end of antenna TX;The 20th one end of the antenna TX with 3rd capacitance C3 connections, the 22nd end ground connection.
In such scheme, between the first resistor R1 and second resistance R2 and the second triode Q2 and the 5th capacitance C5 it Between connect;Connected between the second resistance R2 and 3rd resistor R3 between the first triode Q1 and the 3rd capacitance C3;It is described The 4th capacitance C4 is parallel with 4th resistance R4.
In such scheme, the three, the eight ends of the first solid-state relay U1, the first end of the wire socket J1, institute State one end of the 9th capacitance C9, one end of the signaling conversion circuit T1, one end of the 4th resistance R4 are grounded.
Compared with prior art, beneficial effects of the present invention:
Invention increases the detection range of Mine Wireless ripple perspective, makes traditional Mine Wireless ripple perspective method Detection range increase to more than 200 meters;By drilling, by the present invention send to have inside working face anomalous structure areas adjacent into Row proximity detection, adds the precision of detection, improves the resolution ratio of Mine Wireless ripple perspective, so as to promote coal mine The development and application of radio wave exploration engineering in lower drilling.
Brief description of the drawings
Fig. 1 provides a kind of structure diagram of receiving transducer in mining wireless electric wave hole for the embodiment of the present invention;
Fig. 2 provides a kind of functional block diagram of receiving transducer in mining wireless electric wave hole for the embodiment of the present invention;
Fig. 3 provides a kind of circuit diagram of the control circuit of receiving transducer in mining wireless electric wave hole for the embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The embodiment of the present invention provides receiving transducer in a kind of mining wireless electric wave hole, as shown in Figure 1, 2, the receiving transducer bag Include shell 1, magnetic antenna 2, control circuit 3, the shell 1 is nylon material, the head built-in magnetic antenna 2 of the shell 1 With control circuit 3, the afterbody of the shell 1 is helicitic texture.
The center of the magnetic antenna 2 is extended type bar magnet, exterior coiling receiving coil.
As shown in Fig. 2, the control circuit 3 includes the first triode Q1, the second triode Q2, the 3rd triode Q3, the One solid-state relay U1, the second solid-state relay U2, antenna TX, wire socket J1, the second of the first solid-state relay U1 End is connected by resistance RO with the 5th end of wire socket J1, and the 5th end of the first solid-state relay U1 passes through the second capacitance C2 is connected with antenna TX, and the 20th one end of the antenna TX is connected by the 3rd capacitance C3 with the first triode Q1, and described One end of one triode Q1 is connected with the second triode Q2, the second triode Q2 all the way through the 7th capacitance C7 and the three or three Pole pipe Q3 connections, another way are connected through the 5th resistance R5, the 6th resistance R6 with the 3rd end of the second solid-state relay U2;Described The 2nd end of two solid-state relay U2 is grounded after the 9th capacitance C9, the 7th resistance R7, the 8th resistance R8;3rd triode Third and fourth end of two-way difference connecting wire socket J1 is divided in one end of Q3 after the 8th capacitance C8, signaling conversion circuit T1, another End is connected with one end of the tenth resistance R10, the other end of the tenth resistance R10 be connected to the 6th resistance R6 and the second solid-state after Between electric appliance U2;Connect the first resistor R1 being sequentially connected in series, second resistance R2,3rd resistor R3, the connection of the 4th resistance R4 one end Between the 5th resistance R5, the 6th resistance R6, the other end is connected to the other end of the first triode Q1;The wire socket The second end of J1 is connected with the first end of the second solid-state relay U2.
It is connected with one end of the tenth capacitance C10 between the 6th resistance R6 and the second solid-state relay U2, the described tenth The other end ground connection of capacitance C10;It is connected with the 9th resistance R9's between one end of the 3rd triode Q3 and the 8th capacitance C8 One end, the other end ground connection of the 9th resistance R9.
One end of the 11st resistance R11 is connected between the 3rd end of the signaling conversion circuit T1 and wire socket J1, The other end of the 11st resistance R11 is connected to the 9th capacitance C9 between the 2nd end of the second solid-state relay U2;The letter One end of the 12nd resistance R12, the 12nd resistance number are connected between conversion circuit T1 and the 4th end of wire socket J1 The other end ground connection of R12.
Between the 9th capacitance C9 and the 7th resistance R7 and the tenth resistance R10 and the 3rd triode Q3 the other end Between connect;Connect between the 7th resistance R7 and the 8th resistance R8 between the 7th capacitance C7 and the 3rd triode Q3 Connect.
The second triode Q2 is connected with one end of the 5th capacitance C5, the other end ground connection of the 5th capacitance C5;Institute State one end that the first triode Q1 is connected with the 3rd capacitance C3, the other end ground connection of the 3rd capacitance C3;5th resistance One end of the 6th capacitance C6, the 6th capacitance are connected between tie point and first resistor R1 between R5 and the 6th resistance R6 The other end ground connection of C6.
One end of the first capacitance C1, first capacitance are connected between the tenth one end of the second capacitance C2 and antenna TX The other end of C1 is connected and is grounded with the 12nd end of antenna TX;The 20th one end of the antenna TX connects with the 3rd capacitance C3 Connect, the 22nd end ground connection.
Connected between the first resistor R1 and second resistance R2 between the second triode Q2 and the 5th capacitance C5;It is described Connected between second resistance R2 and 3rd resistor R3 between the first triode Q1 and the 3rd capacitance C3;On the 4th resistance R4 It is parallel with the 4th capacitance C4.
The three, the eight ends of the first solid-state relay U1, the first end of the wire socket J1, the 9th capacitance C9 One end, one end, one end of the 4th resistance R4 of the signaling conversion circuit T1 be grounded.
When receiving 175kHz signals, 5 feet of J1 transmit control signal order solid-state relay U1 conductings, make C1, C2 with Antenna TX forms 175kHz frequency selection circuits, and AC signal is amplified by triode Q1, Q2 first order to be put with the triode Q3 second level Greatly, the signal after amplifying is made signal be converted into differential wave by single-ended signal, is then passed to by signaling conversion circuit T1 J1。
The control circuit 3 is made of signal amplification circuit and frequency selective network, and signal amplification circuit is used for day The small-signal that line receives is amplified, and ensures the normal transmission of analog signal, 175kHz is realized by controlling frequency selection circuit With the switching between two kinds of working frequencies of 310kHz.
The present invention uses receiving transducer in hole as the antenna for receiving specific frequency radio wave signal, to utilize underground coal mine The existing gas extraction hole of working face, receiving transducer in hole is sent into hole, the Working mould using control circuit to specific frequency Formula carries out frequency-selecting, uses hard, lighter weight nylon material as shell so that during receiving coil reception radio signal not It can be lost, afterbody uses the helicitic texture supporting with drilling rod, facilitates the push in deep hole, magnetic antenna is using customization Extended type bar magnet as magnetic core, exterior wound around coil forms reception antenna, and the small-signal that formulate frequency can be received, Control circuit and magnetic antenna cooperating, according to the requirement of mine instrument, using Explosion-proof Design.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims (8)

1. receiving transducer in a kind of mining wireless electric wave hole, it is characterised in that the receiving transducer includes shell, magnetic antenna, control Circuit processed, the shell are nylon material, the head built-in magnetic antenna and control circuit of the shell, the afterbody of the shell For helicitic texture;
The center of the magnetic antenna is extended type bar magnet, exterior coiling receiving coil;
The control circuit include the first triode Q1, the second triode Q2, the 3rd triode Q3, the first solid-state relay U1, Second solid-state relay U2, antenna TX, the second end of wire socket J1, the first solid-state relay U1 are by resistance RO with leading The 5th end connection of line socket J1, the 5th end of the first solid-state relay U1 are connected by the second capacitance C2 with antenna TX, The 20th one end of the antenna TX is connected by the 3rd capacitance C3 with the first triode Q1, one end of the first triode Q1 It is connected with the second triode Q2, the second triode Q2's is connected through the 7th capacitance C7 with the 3rd triode Q3 all the way, another Five resistance R5 of Lu Jing, the 6th resistance R6 are connected with the 3rd end of the second solid-state relay U2;The second solid-state relay U2 The 2nd end be grounded after the 9th capacitance C9, the 7th resistance R7, the 8th resistance R8;One end the 8th of the 3rd triode Q3 Divide third and fourth end of two-way difference connecting wire socket J1, the other end and the tenth resistance after capacitance C8, signaling conversion circuit T1 One end connection of R10, the other end of the tenth resistance R10 are connected between the 6th resistance R6 and the second solid-state relay U2; Connect the first resistor R1 being sequentially connected in series, second resistance R2,3rd resistor R3, the 4th resistance R4 one end are connected to the 5th electricity Hinder between R5, the 6th resistance R6, the other end is connected to the other end of the first triode Q1;The second end of the wire socket J1 with The first end connection of second solid-state relay U2.
2. receiving transducer in mining wireless electric wave hole according to claim 1, it is characterised in that:The 6th resistance R6 with One end of the tenth capacitance C10, the other end ground connection of the tenth capacitance C10 are connected between second solid-state relay U2;It is described One end of the 9th resistance R9 is connected between one end of 3rd triode Q3 and the 8th capacitance C8, the 9th resistance R9's is another End ground connection.
3. receiving transducer in mining wireless electric wave hole according to claim 2, it is characterised in that:The signaling conversion circuit One end of the 11st resistance R11, the other end of the 11st resistance R11 are connected between T1 and the 3rd end of wire socket J1 The 9th capacitance C9 is connected between the 2nd end of the second solid-state relay U2;The signaling conversion circuit T1 and wire socket J1 The 4th end between be connected with one end of the 12nd resistance R12, the other end ground connection of the 12nd resistance R12.
4. receiving transducer in mining wireless electric wave hole according to claim 3, it is characterised in that:The 9th capacitance C9 with Connected between 7th resistance R7 between the other end of the tenth resistance R10 and the 3rd triode Q3;The 7th resistance R7 It is connected between the 8th resistance R8 between the 7th capacitance C7 and the 3rd triode Q3.
5. receiving transducer in mining wireless electric wave hole according to claim 4, it is characterised in that:The second triode Q2 It is connected with one end of the 5th capacitance C5, the other end ground connection of the 5th capacitance C5;The first triode Q1 is connected with the 3rd One end of capacitance C3, the other end ground connection of the 3rd capacitance C3;Connection between the 5th resistance R5 and the 6th resistance R6 One end of the 6th capacitance C6, the other end ground connection of the 6th capacitance C6 are connected between point and first resistor R1.
6. receiving transducer in mining wireless electric wave hole according to claim 5, it is characterised in that:The second capacitance C2 with One end of the first capacitance C1, the other end of the first capacitance C1 and the tenth of antenna TX the are connected between the tenth one end of antenna TX Two ends connect and are grounded;The 20th one end of the antenna TX is connected with the 3rd capacitance C3, the 22nd end ground connection.
7. receiving transducer in mining wireless electric wave hole according to claim 6, it is characterised in that:The first resistor R1 with Connected between second resistance R2 between the second triode Q2 and the 5th capacitance C5;The second resistance R2 and 3rd resistor R3 it Between connected between the first triode Q1 and the 3rd capacitance C3;The 4th capacitance C4 is parallel with the 4th resistance R4.
8. receiving transducer in mining wireless electric wave hole according to claim 7, it is characterised in that:The first solid-state relay The three, the eight ends of device U1, the first end of the wire socket J1, one end of the 9th capacitance C9, the signaling conversion circuit One end of T1, one end of the 4th resistance R4 are grounded.
CN201610428299.XA 2016-06-16 2016-06-16 Receiving transducer in mining wireless electric wave hole Active CN106054267B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610428299.XA CN106054267B (en) 2016-06-16 2016-06-16 Receiving transducer in mining wireless electric wave hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610428299.XA CN106054267B (en) 2016-06-16 2016-06-16 Receiving transducer in mining wireless electric wave hole

Publications (2)

Publication Number Publication Date
CN106054267A CN106054267A (en) 2016-10-26
CN106054267B true CN106054267B (en) 2018-05-04

Family

ID=57168283

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610428299.XA Active CN106054267B (en) 2016-06-16 2016-06-16 Receiving transducer in mining wireless electric wave hole

Country Status (1)

Country Link
CN (1) CN106054267B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203178499U (en) * 2013-02-20 2013-09-04 安徽恒源煤电股份有限公司 Geology acquisition and monitoring device used for coal mining
CN103472490A (en) * 2013-09-05 2013-12-25 中煤科工集团西安研究院 Mining intrinsic safety type transient electromagnetic instrument receiving antenna
US8884805B2 (en) * 2011-04-19 2014-11-11 Raytheon Company Systems and methods for mapping the crust of the earth
CN104656151A (en) * 2013-11-21 2015-05-27 西安大昱光电科技有限公司 Single-hole geological exploration system
CN204679653U (en) * 2015-05-08 2015-09-30 中煤科工集团西安研究院有限公司 The accurate bit mask receiving antenna of mine transient electromagnetic instrument

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8884805B2 (en) * 2011-04-19 2014-11-11 Raytheon Company Systems and methods for mapping the crust of the earth
CN203178499U (en) * 2013-02-20 2013-09-04 安徽恒源煤电股份有限公司 Geology acquisition and monitoring device used for coal mining
CN103472490A (en) * 2013-09-05 2013-12-25 中煤科工集团西安研究院 Mining intrinsic safety type transient electromagnetic instrument receiving antenna
CN104656151A (en) * 2013-11-21 2015-05-27 西安大昱光电科技有限公司 Single-hole geological exploration system
CN204679653U (en) * 2015-05-08 2015-09-30 中煤科工集团西安研究院有限公司 The accurate bit mask receiving antenna of mine transient electromagnetic instrument

Also Published As

Publication number Publication date
CN106054267A (en) 2016-10-26

Similar Documents

Publication Publication Date Title
CN106223937B (en) A kind of reception device suitable for the wireless short pass of the nearly drill bit in underground
CN103089249B (en) Signal wireless electromagnetism transmission system while drilling
CN206564328U (en) Transient electromagnetic exploration integrated dual-mode antenna rod and measurement apparatus
CN103837903B (en) Underground full-wave nuclear magnetic resonance detection device based on wireless network
CN204357427U (en) Wireless ground direct reading system for downhole test data
CN103306668B (en) The EM-MWD transmission system of extension antenna underarm
CN105464646B (en) A kind of communication device and method of underground geologic parameter
CN102251769A (en) Electromagnetic wave signal transmission method and system of measurement while drilling
CN201367895Y (en) Multi-phase compensating drilling electric resistivity well measuring apparatus
CN102536204A (en) Method for increasing transmitting efficiency of electromagnetic wave wireless measurement-while-drilling system by aid of multiple insulation short pieces
CN105019891A (en) Underground coal mine logging-while-drilling tool based on electromagnetic wave resistivity and measuring method thereof
CN106089187B (en) Marine well logging signal transmission system
CN106054267B (en) Receiving transducer in mining wireless electric wave hole
CN2900781Y (en) Electromagnetic wave path type radio measurer while drilling
CN103061754A (en) Electromagnetic wave measurement while drilling system wireless remote receiving device and measuring method and application thereof
CN206299374U (en) A kind of reception device suitable for the underground wireless short pass of nearly drill bit
CN108612523B (en) A kind of bi-directional electromagnetic measurement while drilling control method and system based on aerial array
CN203756158U (en) Double-flow drill rod signal transmission system
CN101392643A (en) Underground data wireless transmission device of gas drilling while drilling
Sun et al. Channel and energy analysis on magnetic induction-based wireless sensor networks in oil reservoirs
CN106894813B (en) Electromagnetic measurement while drilling system and method based on adjacent well receiving antenna
CN201233961Y (en) Insulation dipole wireless transmission antenna in conjunction with drill
CN108442926A (en) A kind of nearly drill bit electromagnetic resistivity adds gamma ray logger
CN208310758U (en) A kind of nearly drill bit electromagnetic resistivity adds gamma ray logger
CN204287508U (en) Between two lane, multicast radiowave cheats field strength measurement system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant