CN209386570U - A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication - Google Patents
A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication Download PDFInfo
- Publication number
- CN209386570U CN209386570U CN201822115300.0U CN201822115300U CN209386570U CN 209386570 U CN209386570 U CN 209386570U CN 201822115300 U CN201822115300 U CN 201822115300U CN 209386570 U CN209386570 U CN 209386570U
- Authority
- CN
- China
- Prior art keywords
- wall
- hung boiler
- speech recognition
- module
- recognition module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Selective Calling Equipment (AREA)
Abstract
The utility model discloses the voice control burnt gas wall hanging furnaces that a kind of power carrier and wifi are communicated, belong to wall-hung boiler field, including body and control system, pass through the power line carrier module with speech recognition module and wifi communication module, it can be in the absence of a network or under the premise of having wifi network, it is carried out using the power carrier communication and wifi communication mode of wired connection complementary, make user that can accurately use wall-hung boiler by voice or button operation everywhere at home, it avoids the convenience that power carrier communication is used alone not good enough and the defect of the signal limitation of wifi communication is used alone, directly wall-hung boiler can also be controlled by voice beside wall-hung boiler, it is brought convenience to the life of user.
Description
Technical field
The utility model relates to wall-hung boiler fields, and in particular to a kind of voice control combustion gas of power carrier and wifi communication
Wall-hung boiler.
Background technique
Wall-hung boiler is the abbreviation of burnt gas wall hanging furnace, and full name is " fuel wall hanging formula heating stove ", is one kind using natural gas as energy
The water heater in source, but it is not traditional gas heater, is essentially different with water heater.Burnt gas wall hanging furnace
Heating function and domestic hot-water can be provided, gas heater only has domestic hot-water's function.In order to realize heating function, combustion gas wall
Hang furnace built-in blower, water pump, built-in corresponding automatic control and safety protection function, and these are all gas heater institutes
Do not have.
The domestic existing wall-hung boiler using Alternating Current Power Supply can use display panel if wanting to adjust the functions such as temperature, switching on and shutting down
On physical button realize that but these all need to contact the key on display panel by hand to operate.Therefore, firstly, with
When the hand inconvenience of family, effective control in time can not be carried out to wall-hung boiler;Secondly, for user at home apart from wall-hung boiler farther out
And when needing to carry out wall-hung boiler operation at once, just (such as kitchen, bathroom etc.) voice fast and accurately can not be utilized at home
It realizes and adjusts the functions such as temperature, switching on and shutting down, in general, current wall-hung boiler greatly limits use crowd and the control of wall-hung boiler
Range processed, and the ease of use as daily life indispensability electric appliance.
Utility model content
In view of the deficiencies of the prior art, the utility model lies in that proposing the voice control of a kind of power carrier and wifi communication
Burnt gas wall hanging furnace can be in the feelings of not network by the power line carrier module with speech recognition module and wifi communication module
Under condition or under the premise of having wifi network, carried out using the power carrier communication and wifi communication mode of wired connection mutual
It mends, user is made by voice or button operation using wall-hung boiler can accurately to avoid that electric power load is used alone everywhere at home
The convenience of wave communication is not good enough and the defect of the signal limitation of wifi communication is used alone, can also be directly logical beside wall-hung boiler
It crosses voice to control wall-hung boiler, be brought convenience to the life of user.
To achieve the above object, the technical scheme adopted by the utility model is
A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication, including wall-hung boiler body, the wall-hung boiler
It is provided with the blower for burning waste gas to be discharged in body, smoke extraction chamber, heat exchanger, staged burners assembly, split-wind plate, divides
Segmentation gas valve and gas ratio valve;The gas ratio valve is connected to segmented gas valve, the segmented by fuel gas pipeline
Gas valve is connected to the staged burners assembly, and the air inlet of staged burners assembly, the segmentation is arranged in the split-wind plate
Combustion chamber cavity is set above burner assembly, and the combustion chamber cavity is connected to smoke extraction chamber, and the blower setting is discharged in flue gas
Between mouth and smoke extraction chamber;The heat exchanger is located above the combustion chamber cavity, and the heating outlet of the heat exchanger passes through
Pipeline is connected to the heating water outlet of wall-hung boiler, and the Heating water inlet of the heat exchanger is pumped by the heating of pipeline and wall-hung boiler to be connected
It is logical;The hot water outlet of the heat exchanger is connected to by pipeline with the hot water outlet of wall-hung boiler, the hot water of the heat exchanger
Entrance is connected to by pipeline with the cold water inlet of wall-hung boiler;Heating water return outlet is set on the heating pump;The gas proportion
Valve import is connected with fuel gas inlet;The staged burners assembly include ignition discharge device and with the ignition discharge device
The flame sensing device matched;Be provided in week on the inside of the wall-hung boiler body closed air chamber, the closed air chamber and air into
Mouth connection;The air inlet that staged burners assembly is arranged in is connected to by split-wind plate with the closed air chamber;
The wall-hung boiler is additionally provided with control system, and the control system includes the master being arranged on the wall-hung boiler body
Controller, wifi communication module I, power line carrier module I, speech recognition module I and panel, and be arranged in the wall-hung boiler machine
External wifi communication module II, speech recognition module II, microphone II, key II and display screen II;The master controller point
It is not communicated mutually with the wifi communication module I, power line carrier module I, speech recognition module I and panel, the master controller
Signal or instruction are sent to blower, ignition discharge device and gas ratio valve;The panel includes key I and display screen I, described
Display screen I receives the signal of master controller, and the key I sends signal to the master controller;The speech recognition module I connects
Receive the signal for the microphone I being arranged on the wall-hung boiler body;The wifi communication module I and wifi communication module II is mutual
Communication, the wifi communication module II are mutually communicated with the speech recognition module III, and the speech recognition module III is received
The signal of microphone III, the wifi communication module II receives the signal of key III, and sends signal to display screen III;Institute
It states power line carrier module I and is mutually communicated with setting in the extra-organismal multiple power line carrier module II of wall-hung boiler, the power carrier
Module ii is mutually communicated with the speech recognition module II, and the speech recognition module II receives the signal of microphone II, described
Power line carrier module II receives the signal of key II, and sends signal to display screen II.
Master controller is the core of entire wall-hung boiler, and master controller is the conventional journey of existing microprocessor implantation
Sequence controls the operation such as logic and constant temperature of entire wall-hung boiler;Key I and display screen I, the main setting temperature for showing wall-hung boiler and
The information such as leaving water temperature, and pass through key I lifting setting temperature and switching on and shutting down etc.;User can pass through the extra-organismal language of wall-hung boiler
Sound identification module II is sent out corresponding order is changed into after the speech recognition that microphone II is acquired again by power carrier communication mode
Master controller is given, is such as said voice " heating ", speech recognition module sends heating order to main control after recognizing this voice
Device, master controller adjust gas ratio valve, setting temperature are increased once, this is equivalent to by the heating key one on the key
The effect of sample;It can also be by the extra-organismal speech recognition module III of wall-hung boiler turning again after the speech recognition that microphone III is acquired
Communication modes are communicated by wifi at corresponding order and are sent to master controller, such as say voice " heating ", speech recognition module III
Heating order is sent to master controller after recognizing this voice, and master controller adjusts gas ratio valve, and setting temperature is increased
Once, this was equivalent to the effect by the heating key on the key;Mike can also directly be passed through in face of wall-hung boiler
Wind I directly carries out above-mentioned voice control to wall-hung boiler.
Equally it can also remotely be controlled by key II or key III.
As those skilled in the art, the wall-hung boiler in the utility model is burnt gas wall hanging furnace, and undocumented part is equal
Belong to the prior art, can be transferred through control system to carry out voice control.
Further, the speech recognition module I is connected with loudspeaker I, the loudspeaker I receives the speech recognition
The signal of module I;The status information of wall-hung boiler can be played back by voice.
Further, the speech recognition module II is connected with loudspeaker II, the loudspeaker II receives the voice
The signal of identification module II;The status information of wall-hung boiler can be played back by voice.
Further, the speech recognition module III is connected with loudspeaker III, the loudspeaker III receives institute's predicate
The signal of sound identification module III;The status information of wall-hung boiler can be played back by voice.
Further, the speech recognition module I, speech recognition module III and speech recognition module II model are all
CI1006A;It can recognize multilingual, adaptation range is wide, and discrimination is high.
Further, wifi communication module I and wifi communication module II the model wifi-w1.
Further, being additionally provided with air chamber convex closure in wall-hung boiler body;This air chamber convex closure forms air duct, has
Conducive to air mass flow is increased, keep oxygen required for burning more abundant.
Further, the model of the power line carrier module I and power line carrier module II is all LHT980B-350D-
002A。
Further, the power line carrier module I is connect with power line carrier module II by 220V power supply line.
Further, the wifi network that the wifi communication module I and wifi communication module II pass through wireless router
Connection.
The beneficial effects of the utility model are:
1, the wall-hung boiler of the utility model, be all respectively set inside and outside wall-hung boiler with wifi communication and power carrier communication be
The speech control module of transmission mode can adjust temperature, switch by button operation on wall-hung boiler in the case where no network
The functions such as machine can also carry out voice to wall-hung boiler in user's family by power carrier communication mode and press key control, have
In the case where wifi network, voice and key can be carried out to wall-hung boiler in user's family by wifi communication modes in user family
Control, considerably increases ease of use and safety, meets the use demand of different users under various circumstances.
2, when user is in face of wall-hung boiler, voice control can directly be carried out by the speech control system being arranged in wall-hung boiler
System, more direct convenience.
3, the wall-hung boiler of the utility model is also provided with loudspeaker, can voice feedback speech recognition result, to prompt user,
User is facilitated to judge whether voice operating is completed.
4, the speech recognition module that the wall-hung boiler of the utility model uses can multilingual identification, facilitate different language crowd
It uses, expands the target user of wall-hung boiler.
Detailed description of the invention
Fig. 1 is the front view of the utility model wall-hung boiler;
Fig. 2 is the side view of the utility model wall-hung boiler;
Fig. 3 is the control system architecture schematic diagram of the utility model wall-hung boiler;
In figure: 1, blower;11, flue gas discharge opening;12, air intlet;2, smoke extraction chamber;3, heat exchanger;34, burning chamber
Body;4, staged burners assembly;41, ignition discharge device;42, flame sensing device;5, split-wind plate;6, segmented gas valve;
7, gas ratio valve;8, air chamber convex closure;9, closed air chamber;10, heating pumps;101, heating water outlet;102, hot water effluent
Mouthful;103, fuel gas inlet;104, cold water inlet;105, heating water return outlet.
Specific embodiment
It is practical new to this with reference to the accompanying drawing in order to keep the purpose of this utility model, technical solution and advantage clearer
Type is further elaborated.
In this example, as shown in Figure 1-3, the voice control burnt gas wall hanging furnace of a kind of power carrier and wifi communication, is wrapped
Wall-hung boiler body is included, blower 1, smoke extraction chamber 2, heat exchanger for burning waste gas to be discharged are provided in the wall-hung boiler body
3, staged burners assembly 4, split-wind plate 5, segmented gas valve 6 and gas ratio valve 7;The gas ratio valve 7 passes through combustion gas
Pipeline connection segmented gas valve 6, the segmented gas valve 6 are connected to the staged burners assembly 4, and the split-wind plate 5 is set
The air inlet in staged burners assembly 4 is set, combustion chamber cavity 34, the burning are set above the staged burners assembly 4
Chamber body 34 is connected to smoke extraction chamber 2, and the blower 1 is arranged between flue gas discharge opening 11 and smoke extraction chamber 2;The heat exchanger 3
Above the combustion chamber cavity 34, the heating outlet of the heat exchanger 3 passes through the heating water outlet 101 of pipeline and wall-hung boiler
The Heating water inlet of connection, the heat exchanger 3 is connected to by pipeline with the heating of wall-hung boiler pump 10;The heat of the heat exchanger 3
Water out is connected to by pipeline with the hot water outlet 102 of wall-hung boiler, and the hot water inlet of the heat exchanger 3 passes through pipeline and wall
The cold water inlet 104 for hanging furnace is connected to;Heating water return outlet 105 is set on the heating pump 10;7 import of gas ratio valve connects
It is connected to fuel gas inlet 103;The staged burners assembly 4 include ignition discharge device 41 and with 41, the ignition discharge device
The flame sensing device 42 matched;It is provided with closed air chamber 9, the closed air chamber 9 and sky on the inside of the wall-hung boiler body week
Gas import 12 is connected to;The air inlet that staged burners assembly 4 is arranged in is connected by split-wind plate 5 and the closed air chamber 9
It is logical;
The wall-hung boiler is additionally provided with control system, and the control system includes the master being arranged on the wall-hung boiler body
Controller, wifi communication module I, power line carrier module I, speech recognition module I and panel, and be arranged in the wall-hung boiler machine
External wifi communication module II, speech recognition module II, microphone II, key II and display screen II;The master controller point
It is not communicated mutually with the wifi communication module I, power line carrier module I, speech recognition module I and panel, the master controller
Signal or instruction are sent to blower 1, ignition discharge device 41 and gas ratio valve 7;The panel includes key I and display screen I,
The display screen I receives the signal of master controller, and the key I sends signal to the master controller;The speech recognition mould
Block I receives the signal for the microphone I being arranged on the wall-hung boiler body;The wifi communication module I and wifi communication module
II is mutually communicated, and the wifi communication module II is mutually communicated with the speech recognition module III, the speech recognition module
III receives the signal of microphone III, and the wifi communication module II receives the signal of key III, and sends to display screen III
Signal;The power line carrier module I is mutually communicated with setting in the extra-organismal multiple power line carrier module II of wall-hung boiler, the electricity
Power carrier module II is mutually communicated with the speech recognition module II, and the speech recognition module II receives the letter of microphone II
Number, the power line carrier module II receives the signal of key II, and sends signal to display screen II.
The speech recognition module I is connected with loudspeaker I, and the loudspeaker I receives the letter of the speech recognition module I
Number.
The speech recognition module II is connected with loudspeaker II, and the loudspeaker II receives the speech recognition module II's
Signal.
The speech recognition module III is connected with loudspeaker III, and the loudspeaker III receives the speech recognition module
The signal of III.
The speech recognition module I, speech recognition module III and speech recognition module II model are all CI1006A.
Wifi communication module I and wifi communication module II the model wifi-w1.
Air chamber convex closure 8 is additionally provided in wall-hung boiler body.
The model of the power line carrier module I and power line carrier module II is all LHT980B-350D-002A.
The power line carrier module I is connect with power line carrier module II by 220V power supply line.
The wifi communication module I is connect with wifi communication module II by the wifi network of wireless router.
The speech control process of the wall-hung boiler of the utility model is as follows:
In the case where no network, can by the way that multiple power line carrier module II are arranged, in user family everywhere (such as bathroom,
Kitchen lamp) installation control point, user at home, can be at each control point by issuing instruction to microphone II, and voice signal passes through
It is sent to master controller after speech recognition module II identification to be handled, master controller is sent out after signal processing with instruction type
Blower 1, ignition discharge device 41 and gas ratio valve 7 are given, to open or close wall-hung boiler;When wall-hung boiler is run, if
Think the height of adjustment temperature, user instructs by issuing to microphone, and voice signal is sent after speech recognition module I identification
It is handled to master controller, master controller is sent to gas ratio valve 7 for after signal processing with instruction type, to adjust combustion
Gas proportioning valve size, the heating of control leaving water temperature and cooling;
In the case where there is wifi network, when user is in range, pass through wifi communication module I and wifi communication module
II connection, is communicated by the wifi network of wireless router, carries out voice control to wall-hung boiler, while can also pass through key III
Wireless control is carried out, the different demands of different user are met;
When user is in face of wall-hung boiler, voice control can be directly carried out by the speech control system being arranged in wall-hung boiler
System, more direct convenience.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (8)
1. the voice control burnt gas wall hanging furnace of a kind of power carrier and wifi communication, which is characterized in that including wall-hung boiler body, institute
State blower (1), smoke extraction chamber (2), the heat exchanger (3), segmentation combustion being provided in wall-hung boiler body for burning waste gas to be discharged
Burner assembly (4), split-wind plate (5), segmented gas valve (6) and gas ratio valve (7);The gas ratio valve (7) passes through combustion
Air pipe is connected to segmented gas valve (6), segmented gas valve (6) connection staged burners assembly (4), and described point
The air inlet in staged burners assembly (4) is arranged in aerofoil (5), setting burning chamber above the staged burners assembly (4)
Body (34), the combustion chamber cavity (34) are connected to smoke extraction chamber (2), and blower (1) setting is in flue gas discharge opening (11) and smoke evacuation
Between chamber (2);
The heat exchanger (3) is located above the combustion chamber cavity (34), and the heating outlet of the heat exchanger (3) passes through pipe
Road is connected to the heating water outlet (101) of wall-hung boiler, and the Heating water inlet of the heat exchanger (3) is adopted by pipeline and wall-hung boiler
Warming-up (10) connection;The hot water outlet of the heat exchanger (3) is connected to by pipeline with the hot water outlet (102) of wall-hung boiler,
The hot water inlet of the heat exchanger (3) is connected to by pipeline with the cold water inlet (104) of wall-hung boiler;The heating pumps (10)
Upper setting heating water return outlet (105);Gas ratio valve (7) import is connected with fuel gas inlet (103);III
The staged burners assembly (4) include ignition discharge device (41) and with the matched fire of the ignition discharge device (41)
Flame sensing device (42);
It is provided in week closed air chamber (9) on the inside of the wall-hung boiler body, the closed air chamber (9) and air intlet (12) are even
It is logical;
The setting is connected to by split-wind plate (5) with the closed air chamber (9) in the air inlet of staged burners assembly (4);
The wall-hung boiler is additionally provided with control system, and the control system includes the main control being arranged on the wall-hung boiler body
Device, wifi communication module I, power line carrier module I, speech recognition module I and panel, and be arranged outside the wall-hung boiler body
Wifi communication module II, speech recognition module II, microphone II, key II and display screen II;The master controller respectively with
The wifi communication module I, power line carrier module I, speech recognition module I and panel mutually communicate, and the master controller is aweather
Machine (1), ignition discharge device (41) and gas ratio valve (7) send signal or instruction;The panel includes key I and display screen
I, the display screen I receive the signal of master controller, and the key I sends signal to the master controller;The speech recognition
Module I receives the signal for the microphone I being arranged on the wall-hung boiler body;
The wifi communication module I and wifi communication module II is mutually communicated, and the wifi communication module II and the voice are known
Other module ii I is mutually communicated, and the speech recognition module III receives the signal of microphone III, and the wifi communication module II connects
The signal of key III is received, and sends signal to display screen III;
The power line carrier module I is mutually communicated with setting in the extra-organismal multiple power line carrier module II of wall-hung boiler, the electricity
Power carrier module II is mutually communicated with the speech recognition module II, and the speech recognition module II receives the letter of microphone II
Number, the power line carrier module II receives the signal of key II, and sends signal to display screen II.
2. wall-hung boiler as described in claim 1, which is characterized in that the speech recognition module I is connected with loudspeaker I, described
Loudspeaker I receives the signal of the speech recognition module I.
3. wall-hung boiler as described in claim 1, which is characterized in that the speech recognition module II is connected with loudspeaker II, institute
State the signal that loudspeaker II receives the speech recognition module II.
4. wall-hung boiler as described in claim 1, which is characterized in that the speech recognition module III is connected with loudspeaker III,
The loudspeaker III receives the signal of the speech recognition module III.
5. such as described in any item wall-hung boilers of claim 1-4, which is characterized in that the speech recognition module I, speech recognition
Module ii I and speech recognition module II model are all CI1006A.
6. wall-hung boiler as described in claim 1, which is characterized in that be additionally provided with air chamber convex closure (8) in wall-hung boiler body.
7. wall-hung boiler as described in claim 1, which is characterized in that the power line carrier module I and power line carrier module II is logical
Cross the connection of 220V power supply line.
8. wall-hung boiler as described in claim 1, which is characterized in that the wifi communication module I and wifi communication module II is logical
Cross the wifi network connection of wireless router.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822115300.0U CN209386570U (en) | 2018-12-17 | 2018-12-17 | A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822115300.0U CN209386570U (en) | 2018-12-17 | 2018-12-17 | A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209386570U true CN209386570U (en) | 2019-09-13 |
Family
ID=67872140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201822115300.0U Active CN209386570U (en) | 2018-12-17 | 2018-12-17 | A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209386570U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109612117A (en) * | 2018-12-17 | 2019-04-12 | 成都前锋电子有限责任公司 | A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication |
-
2018
- 2018-12-17 CN CN201822115300.0U patent/CN209386570U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109612117A (en) * | 2018-12-17 | 2019-04-12 | 成都前锋电子有限责任公司 | A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109631310A (en) | A kind of gas heater communicated with speech recognition and wifi | |
CN209263376U (en) | A kind of voice control gas heater of double wireless telecommunications | |
CN209263379U (en) | A kind of voice control gas heater of power carrier and wifi communication | |
CN209386570U (en) | A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication | |
CN209263375U (en) | A kind of burnt gas wall hanging furnace of wired and wireless voice control | |
CN209263378U (en) | A kind of wall-hung boiler of power carrier and double wireless speech Communication Controls | |
CN209341604U (en) | A kind of voice control burnt gas wall hanging furnace of wireless telecommunications | |
CN209263377U (en) | A kind of burnt gas wall hanging furnace communicated with speech recognition and Digiplex | |
CN209386571U (en) | A kind of burnt gas wall hanging furnace with speech recognition and power carrier communication | |
CN209341608U (en) | A kind of burnt gas wall hanging furnace communicated with speech recognition and wifi | |
CN109612117A (en) | A kind of voice control burnt gas wall hanging furnace of power carrier and wifi communication | |
CN209341607U (en) | A kind of wall-hung boiler with speech recognition | |
CN209341605U (en) | It is a kind of can wired and wireless voice control gas heater | |
CN102116501A (en) | Hybrid power wall-hung boiler | |
CN201615538U (en) | Double-source wall-mounted boiler | |
CN205842759U (en) | Efficiency energy saving gas range | |
CN209246411U (en) | A kind of gas heater communicated with speech recognition and wireless remote control | |
CN211261241U (en) | Gas self-adaptive full-premixing wall-mounted boiler | |
CN209230034U (en) | A kind of gas heater communicated with speech recognition and wifi | |
CN209341606U (en) | A kind of gas heater of power carrier and double wireless speech Communication Controls | |
CN209386572U (en) | A kind of gas heater with speech recognition and power carrier communication | |
CN109612119A (en) | A kind of wall-hung boiler with speech recognition | |
CN209386569U (en) | It is a kind of can speech recognition gas instantaneous water heater | |
CN109442759A (en) | A kind of burnt gas wall hanging furnace of wired and wireless voice control | |
CN109812980A (en) | A kind of wall-hung boiler of power carrier and double wireless speech Communication Controls |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |