CN105892533B - A kind of wireless humiture controller monitored for cold chain storage environment - Google Patents
A kind of wireless humiture controller monitored for cold chain storage environment Download PDFInfo
- Publication number
- CN105892533B CN105892533B CN201610083172.9A CN201610083172A CN105892533B CN 105892533 B CN105892533 B CN 105892533B CN 201610083172 A CN201610083172 A CN 201610083172A CN 105892533 B CN105892533 B CN 105892533B
- Authority
- CN
- China
- Prior art keywords
- pin
- resistance
- external power
- srwf
- pmos
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The present invention relates to a kind of cold chain storage control technology field, more particularly to a kind of wireless humiture controller monitored for cold chain storage environment.The technical scheme is that:Comprising external power supply, humiture sample circuit, core single-chip microcomputer, warning circuit, LCD display circuit, wireless transceiver circuit, GPRS transmission circuits, humiture sample circuit, warning circuit, LCD display circuit, wireless transceiver circuit, GPRS transmission circuits are connected with the I/O mouthful and external power supply of core single-chip microcomputer respectively.The advantage of the invention is that being applicable in the management of various cold chain storage links, installation, low easy to operate, cost, efficiency high, simple and reliable for structure, security performance are high, feedback time is rapid, in good time, make to control the information of humiture in good time in warehousing management, it is easy to management, in time, effectively, in good time, type of alarm is various for alarm, flexibly, receiving position is convenient to be operated installation site.
Description
Technical field
The present invention relates to a kind of cold chain store in a warehouse control technology field, more particularly to it is a kind of for cold chain storage environment monitor
Wireless humiture controller.
Background technology
Need the goods that cold chain is controlled receiving related according to the relevant regulations of country, check and accept, store, deliver, dispense, transport
The logistics links such as defeated carry out strict, uninterrupted cold chain control management.According to the storage characteristics of article, it is desirable to use proprietary skill
Art and facility, with the stabilization of the quality that ensures relative article, effectively.Requirement to the storage environment of these articles is very high, because
This to cold chain storage environment control, supervision etc. step just seem particularly significant.
The content of the invention
To solve above technical problem, the present invention proposes a kind of wireless humiture control monitored for cold chain storage environment
Device, comprising external power supply, humiture sample circuit, core single-chip microcomputer, warning circuit, LCD display circuit, wireless transceiver circuit,
GPRS transmission circuits, the humiture sample circuit, warning circuit, LCD display circuit, wireless transceiver circuit, GPRS transmitting-receiving electricity
Road is connected with the I/O mouthful and external power supply of core single-chip microcomputer respectively, and the external power supply includes the external electricity of M72
Source, 4V2 external power supplys, 3V3 external power supplys, the wireless transceiver circuit includes SRWF-1E80 wireless data transmission modules and four are dialled
Code switch, No. 1 pin ground wire of the SRWF-1E80 wireless data transmission modules, No. 2 pin point of SRWF-1E80 wireless data transmission modules
Lian Jie not 3V3 external power supplys and the ground wire after electric capacity C13, No. 3 pin and the core list of SRWF-1E80 wireless data transmission modules
The transmission FPDP of piece machine is connected, No. 4 pin of SRWF-1E80 wireless data transmission modules and the reception number of the core single-chip microcomputer
It is connected according to port, No. 5 pin of SRWF-1E80 wireless data transmission modules are connected with No. 1 pin of the 4-bit DIP switch,
No. 6 pin of SRWF-1E80 wireless data transmission modules are divided into two after resistance R12, wherein one external with 3V3 after resistance R10
Power supply is connected, another ground wire after electric capacity C14, SRWF-1E80 wireless data transmission modules 11, after No. 13 pin short circuits with ground
Line is connected, No. 22 pin ground wires of SRWF-1E80 wireless data transmission modules, No. 23 pin of SRWF-1E80 wireless data transmission modules with
No. 3 pin of the 4-bit DIP switch are connected, No. 24 pin and the 4-bit DIP switch of SRWF-1E80 wireless data transmission modules
No. 2 pin be connected, No. 28 pin of SRWF-1E80 wireless data transmission modules are connected with No. 4 pin of the 4-bit DIP switch,
No. 35 pin connection ground wire of SRWF-1E80 wireless data transmission modules, No. 36 pin of SRWF-1E80 wireless data transmission modules connect external day
Line, the 4-bit DIP switch 5,6,7, be connected with ground wire after No. 8 pin short circuits, the humiture sample circuit includes sensing
Device, base stage of the sensor with triode Q5 after resistance R48 is connected, triode Q5 grounded emitter line, triode
Q5 colelctor electrode connects 3V3 external power supplys, another connection PMOS Q7 G level phases after being divided into two, a connection resistance R47
Connection, the D poles of the PMOS Q7 are connected with 3V3 external power supplys, the S poles of the PMOS Q7 with substrate is extremely short connect after with connecting
No. 1 pin for meeting device P5 is connected, and No. 2 pin of the connector P5 are connected with the sensing data port of the core single-chip microcomputer
Connect, No. 3 pin of the connector P5 are connected with the sensor clock port of the core single-chip microcomputer, the 4 of the connector P5
Number pin connection ground wire, No. 3 pin of the connector P5 through resistance R51, No. 2 pin through resistance R50 it is in parallel after be connected with No. 1 pin,
The GPRS transmission circuits include GPRS chips and GRPS on-off control circuits, the signal sending end mouthful and core of the GPRS chips
The GPRS receiver ports of heart single-chip microcomputer are connected, the receiver port of the GPRS chips and the GPRS of core single-chip microcomputer
Signal sending end mouthful is connected, and the power port of the GPRS chips is connected with the M72 external power supplys of external power supply, described
The triode Q1, the triode Q1 of GPRS on-off control circuits including NPN type base stage by after resistance R18 with core monolithic
The I/O of machine mouthful is connected, the grounded emitter line of the triode Q1, the colelctor electrode of the triode Q1 with it is in parallel
A circuit and two circuits be connected, G poles and the triode Q1 of a circuit including PMOS Q8, the PMOS Q8
Colelctor electrode be connected, PMOS Q8 S poles are connected with 4V2 external power supplys, and the D poles of the PMOS Q8 are connected with substrate pole
It is connected afterwards with M72 external power supplys, the S poles of the PMOS Q8 are connected after resistance R54 with its G pole, No. two include PMOS
Pipe Q2, the G poles of the PMOS Q2 are connected with triode Q1 colelctor electrode, and PMOS Q2 S poles are connected with 4V2 external power supplys
Connect, the D poles of the PMOS Q2 are connected after being connected with substrate pole with M72 external power supplys, the S poles of the PMOS Q2 are through resistance
It is connected after R15 with its G pole.
The technical program can be optimized for, and the electric capacity C13 is 100nF, and electric capacity C14 is 100 nF, resistance R12 resistance
It is worth for 1000 ohm, the resistance R10 is that resistance value is 10K ohm, the resistance value of the resistance R48 is 1000 ohm, described
Resistance R47 resistance value is 10K ohm, and the resistance value of the resistance R50 is 10K ohm, and the resistance value of the resistance R51 is
10K ohm, the resistance value of the resistance R18 is 1000 ohm, and the resistance value of the resistance R54 is 10K ohm, the resistance
R15 resistance value is 10K ohm.
It can also be optimized for, the core single-chip microcomputer refers to STM32F103VET6 controllers.
Further it is optimized for, the warning circuit includes sound light alarming circuit and GSM message warning circuit.
The advantage of the invention is that being applicable in the management of various cold chain storage links, installation, easy to operate, cost
Low, efficiency high, simple and reliable for structure, security performance are high, and feedback time is rapid, in good time, makes the letter to humiture in warehousing management
Breath is controlled in good time, is easy to management, in time, effectively, in good time, type of alarm is various for alarm, flexibly, receiving position is convenient for installation site
Operation.
Brief description of the drawings
Fig. 1 is the overall structure figure of the present invention;
Fig. 2 is the structure chart of the wireless transceiver circuit of the present invention.
Fig. 3 is the humiture sample circuit of the present invention
Fig. 4 is the structure chart of the GPRS transmission circuits of the present invention.
Embodiment
Specific embodiment:
It is of the invention with reference to the technical program specific implementation situation is described in detail as shown in Fig. 1 and Fig. 2, Fig. 3 and Fig. 4
A kind of wireless humiture controller monitored for cold chain storage environment is proposed, external power supply, humiture sample circuit, core is included
Heart single-chip microcomputer, warning circuit, LCD display circuit, wireless transceiver circuit, GPRS transmission circuits, the humiture sample circuit, report
Alert circuit, LCD display circuit, wireless transceiver circuit, GPRS transmission circuits respectively with the I/O mouthful of core single-chip microcomputer with
And external power supply is connected, the external power supply includes M72 external power supplys, 4V2 external power supplys, 3V3 external power supplys, described wireless
Transmission circuit includes SRWF-1E80 wireless data transmission modules and 4-bit DIP switch, the 1 of the SRWF-1E80 wireless data transmission modules
Number pin ground wire, No. 2 pin of SRWF-1E80 wireless data transmission modules connect 3V3 external power supplys and are grounded after electric capacity C13 respectively
Line, No. 3 pin of SRWF-1E80 wireless data transmission modules are connected with the transmission FPDP of the core single-chip microcomputer, SRWF-1E80
No. 4 pin of wireless data transmission module are connected with the reception FPDP of the core single-chip microcomputer, SRWF-1E80 wireless data transmission modules
No. 5 pin be connected with No. 1 pin of the 4-bit DIP switch, No. 6 pin of SRWF-1E80 wireless data transmission modules are through resistance R12
After be divided into two, wherein one is connected after resistance R10 with 3V3 external power supplys, another ground wire after electric capacity C14,
SRWF-1E80 wireless data transmission modules 11, be connected with ground wire after No. 13 pin short circuits, the 22 of SRWF-1E80 wireless data transmission modules
Number pin ground wire, No. 23 pin of SRWF-1E80 wireless data transmission modules are connected with No. 3 pin of the 4-bit DIP switch, SRWF-
No. 24 pin of 1E80 wireless data transmission modules are connected with No. 2 pin of the 4-bit DIP switch, SRWF-1E80 wireless data transmission modules
No. 28 pin be connected with No. 4 pin of the 4-bit DIP switch, No. 35 pin of SRWF-1E80 wireless data transmission modules connection ground
Line, No. 36 pin connection external antenna of SRWF-1E80 wireless data transmission modules, the 4-bit DIP switch 5,6,7, No. 8 pin it is short
Be connected with ground wire after connecing, the humiture sample circuit includes sensor, the sensor after resistance R48 with triode Q5
Base stage be connected, triode Q5 grounded emitter line, triode Q5 colelctor electrode is divided into two, a connection resistance R47
3V3 external power supplys are connected afterwards, and another connection PMOS Q7 G levels are connected, D poles and the external electricity of 3V3 of the PMOS Q7
Source is connected, and the S poles of the PMOS Q7 are connected with connector P5 No. 1 pin afterwards with extremely short connect of substrate, the connector P5
No. 2 pin be connected with the sensing data port of the core single-chip microcomputer, No. 3 pin of the connector P5 and the core list
The sensor clock port of piece machine is connected, No. 4 pin connection ground wire of the connector P5, No. 3 pin warp of the connector P5
Resistance R51, No. 2 pin are connected after resistance R50 parallel connections with No. 1 pin, and the GPRS transmission circuits include GPRS chips and GRPS
On-off control circuit, the signal sending end mouthful of the GPRS chips is connected with the GPRS receiver ports of core single-chip microcomputer,
The receiver port of the GPRS chips is connected with the GPRS signal sending ends mouthful of core single-chip microcomputer, the GPRS chips
Power port is connected with the M72 external power supplys of external power supply, and the GPRS on-off control circuits include the triode of NPN type
Q1, the triode Q1 base stage are connected by the I/O mouthful after resistance R18 with core single-chip microcomputer, the triode
Q1 grounded emitter line, the colelctor electrode of the triode Q1 is connected with a circuit in parallel and two circuits, described No. one
Circuit includes PMOS Q8, and the G poles of the PMOS Q8 are connected with triode Q1 colelctor electrode, PMOS Q8 S poles and 4V2
External power supply is connected, and the D poles of the PMOS Q8 are connected after being connected with substrate pole with M72 external power supplys, the PMOS
Q8 S poles are connected after resistance R54 with its G pole, No. two G poles including PMOS Q2, the PMOS Q2 and triode Q1
Colelctor electrode be connected, PMOS Q2 S poles are connected with 4V2 external power supplys, and the D poles of the PMOS Q2 are connected with substrate pole
It is connected afterwards with M72 external power supplys, the S poles of the PMOS Q2 are connected after resistance R15 with its G pole.
The electric capacity C13 is 100nF, and electric capacity C14 is 100 nF, and resistance R12 resistance value is 1000 ohm, the resistance
R10 is that resistance value is 10K ohm, and the resistance value of the resistance R48 is 1000 ohm, and the resistance value of the resistance R47 is 10K Europe
Nurse, the resistance value of the resistance R50 is 10K ohm, and the resistance value of the resistance R51 is 10K ohm, the electricity of the resistance R18
Resistance is 1000 ohm, and the resistance value of the resistance R54 is 10K ohm, and the resistance value of the resistance R15 is 10K ohm.It is described
Core single-chip microcomputer refers to STM32F103VET6 controllers.The warning circuit includes sound light alarming circuit and GSM message alarm electricity
Road.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (4)
1. it is a kind of for cold chain storage environment monitor wireless humiture controller, comprising external power supply, humiture sample circuit,
Core single-chip microcomputer, warning circuit, LCD display circuit, wireless transceiver circuit, GPRS transmission circuits, it is characterised in that described warm and humid
Spend sample circuit, warning circuit, LCD display circuit, wireless transceiver circuit, GPRS transmission circuits defeated with core single-chip microcomputer respectively
Go out input port and external power supply is connected, it is external that the external power supply includes M72 external power supplys, 4V2 external power supplys, 3V3
Power supply, the wireless transceiver circuit include SRWF-1E80 wireless data transmission modules and 4-bit DIP switch, the SRWF-1E80 without
No. 1 pin ground wire of line number transmission module, No. 2 pin of SRWF-1E80 wireless data transmission modules connect 3V3 external power supplys and through electricity respectively
Hold ground wire after C13, No. 3 pin of SRWF-1E80 wireless data transmission modules are connected with the transmission FPDP of the core single-chip microcomputer
Connect, No. 4 pin of SRWF-1E80 wireless data transmission modules are connected with the reception FPDP of the core single-chip microcomputer, SRWF-1E80
No. 5 pin of wireless data transmission module are connected with No. 1 pin of the 4-bit DIP switch, No. 6 of SRWF-1E80 wireless data transmission modules
Pin is divided into two after resistance R12, wherein one is connected after resistance R10 with 3V3 external power supplys, another through electric capacity C14
Ground wire afterwards, SRWF-1E80 wireless data transmission modules 11, be connected with ground wire after No. 13 pin short circuits, SRWF-1E80 wireless data sendings
No. 22 pin ground wires of module, No. 23 pin of SRWF-1E80 wireless data transmission modules are connected with No. 3 pin of the 4-bit DIP switch
Connect, No. 24 pin of SRWF-1E80 wireless data transmission modules are connected with No. 2 pin of the 4-bit DIP switch, and SRWF-1E80 is wireless
No. 28 pin of digital transmission module are connected with No. 4 pin of the 4-bit DIP switch, No. 35 pin of SRWF-1E80 wireless data transmission modules
Connect ground wire, No. 36 pin connection external antenna of SRWF-1E80 wireless data transmission modules, 5,6,7, the 8 of the 4-bit DIP switch
It is connected after number pin short circuit with ground wire, the humiture sample circuit includes sensor, the sensor is after resistance R48 with three
Level pipe Q5 base stage is connected, triode Q5 grounded emitter line, and triode Q5 colelctor electrode is divided into two, a connection electricity
Hinder and 3V3 external power supplys are connected after R47, another connection PMOS Q7 G levels are connected, outside the D poles of the PMOS Q7 and 3V3
Connect power supply to be connected, the S poles of the PMOS Q7 are connected with connector P5 No. 1 pin afterwards with extremely short connect of substrate, the connection
Device P5 No. 2 pin are connected with the sensing data port of the core single-chip microcomputer, No. 3 pin and the core of the connector P5
The sensor clock port of heart single-chip microcomputer is connected, No. 4 pin connection ground wire of the connector P5, No. 3 of the connector P5
Pin through resistance R51, No. 2 pin through resistance R50 it is in parallel after be connected with No. 1 pin, the GPRS transmission circuits include GPRS chips and
GRPS on-off control circuits, the signal sending end mouthful of the GPRS chips is connected with the GPRS receiver ports of core single-chip microcomputer
Connect, the receiver port of the GPRS chips is connected with the GPRS signal sending ends mouthful of core single-chip microcomputer, the GPRS cores
The power port of piece is connected with the M72 external power supplys of external power supply, and the GPRS on-off control circuits include three poles of NPN type
Pipe Q1, the triode Q1 base stage are connected by the I/O mouthful after resistance R18 with core single-chip microcomputer, three pole
Pipe Q1 grounded emitter line, the colelctor electrode of the triode Q1 is connected with a circuit in parallel and two circuits, and described one
Number circuit includes PMOS Q8, and the G poles of the PMOS Q8 are connected with triode Q1 colelctor electrode, PMOS Q8 S poles and
4V2 external power supplys are connected, and the D poles of the PMOS Q8 are connected after being connected with substrate pole with M72 external power supplys, the PMOS
Pipe Q8 S poles are connected after resistance R54 with its G pole, and No. two include PMOS Q2, the G poles of the PMOS Q2 and triode
Q1 colelctor electrode is connected, and PMOS Q2 S poles are connected with 4V2 external power supplys, and D poles and the substrate pole of the PMOS Q2 connect
It is connected after connecing with M72 external power supplys, the S poles of the PMOS Q2 are connected after resistance R15 with its G pole.
2. a kind of wireless humiture controller monitored for cold chain storage environment according to claim 1, its feature exists
It is 100nF in the electric capacity C13, electric capacity C14 is 100 nF, and resistance R12 resistance value is 1000 ohm, and the resistance R10 is
Resistance value is 10K ohm, and the resistance value of the resistance R48 is 1000 ohm, and the resistance value of the resistance R47 is 10K ohm, institute
The resistance value for stating resistance R50 is 10K ohm, and the resistance value of the resistance R51 is 10K ohm, and the resistance value of the resistance R18 is
1000 ohm, the resistance value of the resistance R54 is 10K ohm, and the resistance value of the resistance R15 is 10K ohm.
3. a kind of wireless humiture controller monitored for cold chain storage environment according to claim 1 to 2 is any, its
It is characterised by that the core single-chip microcomputer refers to STM32F103VET6 controllers.
4. a kind of wireless humiture controller monitored for cold chain storage environment according to claim 1 to 2 is any, its
It is characterised by that the warning circuit includes sound light alarming circuit and GSM message warning circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610083172.9A CN105892533B (en) | 2016-02-06 | 2016-02-06 | A kind of wireless humiture controller monitored for cold chain storage environment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610083172.9A CN105892533B (en) | 2016-02-06 | 2016-02-06 | A kind of wireless humiture controller monitored for cold chain storage environment |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105892533A CN105892533A (en) | 2016-08-24 |
CN105892533B true CN105892533B (en) | 2017-07-28 |
Family
ID=57013716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610083172.9A Active CN105892533B (en) | 2016-02-06 | 2016-02-06 | A kind of wireless humiture controller monitored for cold chain storage environment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105892533B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108000715A (en) * | 2018-01-23 | 2018-05-08 | 深圳市晟腾企业管理有限公司 | A kind of cement mortar determines wet mixer |
CN108214912A (en) * | 2018-01-23 | 2018-06-29 | 深圳市晟腾企业管理有限公司 | A kind of automatic control type cement stirring device |
CN108189225A (en) * | 2018-01-23 | 2018-06-22 | 深圳市晟腾企业管理有限公司 | A kind of construction site mixed mortar blender |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202815521U (en) * | 2012-06-06 | 2013-03-20 | 海尔集团公司 | Remote cooler management system |
CN103968636A (en) * | 2013-02-04 | 2014-08-06 | 福建新大陆电脑股份有限公司 | Cloud refrigerator with function of remote temperature monitoring |
CN203325194U (en) * | 2013-07-22 | 2013-12-04 | 深圳市博实结科技有限公司 | Vehicle-mounted terminal for cold chain transport vehicle |
CN103514525A (en) * | 2013-08-27 | 2014-01-15 | 北京华海隆科技有限公司 | Temperature real-time monitoring and tracing system |
HUP1400188A2 (en) * | 2014-04-04 | 2015-10-28 | Pannon Cargo & Sped Trans Kft | Method and system to realize a temperature-controlled storage, transport, logistic technology |
-
2016
- 2016-02-06 CN CN201610083172.9A patent/CN105892533B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN105892533A (en) | 2016-08-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105892533B (en) | A kind of wireless humiture controller monitored for cold chain storage environment | |
KR101323686B1 (en) | Monitoring and controlling system for reefer container | |
US20140329467A1 (en) | Wireless communications capable power distribution unit and techniques for communicating therewith | |
US20230058686A1 (en) | Distributed charging station | |
CN203204735U (en) | Remote controller seeking system | |
TW200421897A (en) | Operation monitoring system | |
CN206179188U (en) | Home appliance remote controller , handheld terminal in location and home appliance remote controller positioning system | |
CN104252640A (en) | Electronic tag and article monitoring system employing same | |
CN109507898A (en) | A kind of smart home trip object management system | |
CN205405301U (en) | Wireless humiture system to cold chain storage environment supervision | |
CN104021640A (en) | Antitheft control device and control method for digital display product | |
KR20080068969A (en) | System for taking and controlling the temperature | |
CN201497275U (en) | Network refrigerator for transmitting information through power line | |
US9621965B2 (en) | Module, circuit and method of communication for detection device and sensor comprising such a module, in particular for explosive atmosphere | |
CN203152726U (en) | Electronic-induction interactive badge | |
CN205156504U (en) | Low -power consumption fridge monitored control system | |
CN204256818U (en) | Active electric Force system safety device | |
JP6334466B2 (en) | Transportation status monitoring system | |
CN105573389B (en) | A kind of temperature and humidity controller for refrigerating box supervision | |
CN203241172U (en) | A wireless temperature measuring apparatus used in high-voltage cabinets | |
CN202957889U (en) | Remote controller of smart phone | |
KR101827133B1 (en) | Showcase using energy harvesting sensor module and temperature controlling method thereof | |
CN206442525U (en) | A kind of wireless penetration network transmission device | |
CN206833683U (en) | Engineering calling system and production line | |
CN110658755A (en) | Intelligent system for monitoring logistics safety |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB03 | Change of inventor or designer information |
Inventor after: Xu Zifeng Inventor after: Cong Yi Inventor after: Bi Zhensheng Inventor after: Hu Guihua Inventor after: Hu Jin Inventor after: Gao Xueshuai Inventor before: Xu Zifeng Inventor before: Bi Zhensheng Inventor before: Hu Guihua Inventor before: Hu Jin Inventor before: Gao Xueshuai |
|
COR | Change of bibliographic data | ||
GR01 | Patent grant | ||
GR01 | Patent grant |