CN205875230U - Reinforced earth retaining wall inner stress monitoring system based on internet of things - Google Patents
Reinforced earth retaining wall inner stress monitoring system based on internet of things Download PDFInfo
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- CN205875230U CN205875230U CN201620626449.3U CN201620626449U CN205875230U CN 205875230 U CN205875230 U CN 205875230U CN 201620626449 U CN201620626449 U CN 201620626449U CN 205875230 U CN205875230 U CN 205875230U
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Abstract
The utility model discloses a reinforced earth retaining wall inner stress monitoring system based on internet of things, its characterized in that, mainly by the controller, the accumulator, signal processing unit and the AD conversion unit that are connected with the controller respectively, the stress monitoring devices who is connected with AD conversion unit, the radio signal send unit that is connected with signal processing unit, the radio signal recepition unit that is connected with the radio signal send unit through wireless network to and the PC computer that is connected with the radio signal recepition unit is constituteed. The utility model discloses a wireless network gives the interior PC computer of monitoring room at a distance monitoring data transmission, and the monitoring personnel pass through the inner stress situation of change that reinforced earth retaining wall can be known to the PC computer, need not to come to personally the monitoring scene, have practiced thrift a large amount of manpower and materials, simultaneously, through the utility model discloses the understanding reinforced earth retaining wall's that the monitoring personnel may not be interrupted inner stress situation of change has improved monitor effect.
Description
Technical field
This utility model relates to monitoring technical field, specifically refers to inside a kind of reinforced earth bulkhead based on technology of Internet of things
Stress monitoring system.
Background technology
Reinforced earth bulkhead is by lacing wire, shingle nail and a kind of NEW TYPE OF COMPOSITE supporting construction constituted that bankets.Relative to
Traditional gravity retaining wall, reinforced earth bulkhead is a kind of flexible structure, has preferable compatibility of deformation and anti-seismic performance, right
The bearing requirements of ground is the highest, and has incomparable excellent of his structure of some bases such as good economy and property handsome in appearance
More property；Therefore, it is widely used in the engineerings such as highway, water conservancy, urban construction and railway.
Reinforced earth bulkhead needs to be monitored the stress of its inside during application, by monitoring its internal answering
Power situation, in order to relevant departments understand its carrying situation and health status in time.Presently relevant department generally uses stress monitoring
Stress within reinforced earth bulkhead is monitored by system, and i.e. the internal stress by monitoring device collection reinforced earth bulkhead should
Becoming and be transferred to Control Room, monitoring personnel understand the service condition of reinforced earth bulkhead by the data that transmission is returned.But, tradition
Stress monitoring system signal during transmission signal weakening phenomenon easily occurs, synchronous signal during transmission also
It is easily subject to disturb the impact of signal, causes the data being transferred to Control Room that bigger error occurs, affect monitoring personnel to adding
The judgement of muscle soil barricade serviceability.
Utility model content
The purpose of this utility model is to overcome that traditional reinforced earth bulkhead internal stress monitoring system cannot be real-time
Solve Monitoring Data, and need to waste the defect that Monitoring Data is recorded by substantial amounts of manpower, it is provided that be a kind of based on Internet of Things
The reinforced earth bulkhead internal stress monitoring system of technology.
The purpose of this utility model is achieved through the following technical solutions: in a kind of reinforced earth bulkhead based on technology of Internet of things
Portion's stress monitoring system, including controller, the bin being connected with controller respectively, AD conversion unit and wireless signal are sent out
Penetrate unit, the monitor for stress being connected with AD conversion unit, it is connected with wireless signal transmission unit by wireless network
The reception of wireless signals unit connect, and the PC computer being connected with reception of wireless signals unit；In order to preferably implement this reality
With novel, this utility model is also serially connected with signal processing unit between controller and wireless signal transmission unit；Described letter
Number processing unit by deaccentuator, the second-order filter amplifying circuit being connected with deaccentuator, and simultaneously with frequency
The constant-current source circuit composition that rate correcting circuit is connected with second-order filter amplifying circuit.
Further, described deaccentuator by processing chip U, audion VT1, field effect transistor MOS, N pole and process
The diode D1 that VC pin is connected, P pole is connected with controller of chip U, one end is connected, separately with the P pole of diode D1
The resistance R2 of one end ground connection, the polarity that positive pole is connected with the P pole of diode D1, negative pole is connected with the base stage of audion VT1
Electric capacity C2, positive pole is connected with the N pole of diode D1, the electric capacity C4 of minus earth, is serially connected in emitter stage and the electricity of audion VT1
Hold C4 negative pole between resistance R3, P pole be connected with the colelctor electrode of audion VT1, positive pole after resistance R1 with diode D1
The diode D2 that is connected of P pole, the electricity that positive pole is connected with the N pole of diode D2, negative pole is connected with the N pole of diode D1
Hold C1, while positive pole is connected with the positive pole of electric capacity C1, negative pole is connected with constant-current source circuit electric capacity C3, the N pole of ground connection and
The diode D4 that the source electrode of field effect transistor MOS is connected, P pole is connected with the RT pin processing chip U after resistance R4, concatenation
Resistance R9 between the N pole of diode D4 and the FB pin processing chip U, and the drain electrode phase of one end and field effect transistor MOS
The inductance L composition that connection, the other end are connected with constant-current source circuit and second-order filter amplifying circuit after resistance R10 respectively；Institute
State process chip U GND pin be connected with the P pole of diode D4 while ground connection, its VOUT pin then with field effect transistor MOS
Grid be connected, its SW pin is all connected with constant-current source circuit with VIN pin；The drain electrode of described field effect transistor MOS and source
The most all it is connected with second-order filter amplifying circuit；The P pole of described diode D4 is also connected with second-order filter amplifying circuit.
Described constant-current source circuit is by audion VT2, and positive pole is connected with the base stage of audion VT2, negative pole is with electric capacity C3's
Polar capacitor C5, the P pole that negative pole is connected is connected with the VIN pin processing chip U, N pole is sequentially through resistance R6 and resistance R7
The Zener diode D3 that colelctor electrode with audion VT2 is connected afterwards, is serially connected in the P pole of Zener diode D3 and the negative of electric capacity C3
Resistance R5 between pole, and it is serially connected in the resistance R8 group between the emitter stage of audion VT2 and the SW pin processing chip U
Become；The colelctor electrode of described audion VT2 is sequentially connected through resistance R10 drain electrode with field effect transistor MOS after inductance L1；Described
The junction point of resistance R6 and resistance R7 connects 15V voltage；Described second-order filter amplifying circuit then colelctor electrode with audion VT2 is connected
Connect.
Described second-order filter amplifying circuit is by the collection of amplifier P1, amplifier P2, audion VT3, P pole and audion VT2
Electrode is connected, N pole the most sequentially through diode D6, P pole that resistance R11 is connected with the P pole of diode D4 after resistance R12 with
The diode D5 that the drain electrode of field effect transistor MOS is connected, N pole negative pole with amplifier P1 after polar capacitor C7 is connected, just
Pole is connected with the N pole of diode D5, the polar capacitor C6 of minus earth, and one end is connected with the N pole of diode D6, the other end
Resistance R13, the N pole that base stage with audion VT3 is connected after resistance R15 is connected with the base stage of audion VT3, P pole connects
The diode D7 on ground, the resistance R14 being serially connected between the P pole of diode D7 and the negative pole of amplifier P1, one end and amplifier P1
The resistance R16 that outfan is connected, other end negative pole with amplifier P2 after resistance R17 is connected, positive pole and audion
The colelctor electrode of VT3 is connected, the polar capacitor C8 of minus earth, and one end is connected with the positive pole of polar capacitor C8, other end warp
Resistance R18, the N pole that after resistance R19, outfan with amplifier P2 is connected is connected with the positive pole of amplifier P2, P pole and three
The diode D8 that the colelctor electrode of pole pipe VT3 is connected, and positive pole is connected with the negative pole of amplifier P2, negative pole is then electric with polarity
Hold the polar capacitor C9 composition that the negative pole of C8 is connected；The colelctor electrode of described audion VT3 is connected with the positive pole of amplifier P4,
Its emitter stage is then connected with the source electrode of field effect transistor MOS；The outfan of described amplifier P2 then with wireless signal transmission unit
It is connected.
Described process chip U is the integrated chip of LTC3402.
This utility model compared with the prior art, has the following advantages and beneficial effect:
(1) this utility model is sent to monitor at a distance indoor PC computer by wireless network Monitoring Data, it is to avoid
Complicated track laying, reduces production cost of the present utility model and maintenance cost.
(2) signal before being wirelessly transferred is processed by this utility model by signal processing unit, this signal processing list
Promethean deaccentuator of unit and second-order filter amplifying circuit are used in combination, and make signal still protect after being wirelessly transferred
Hold the highest accuracy, thus improve monitoring accuracy of the present utility model.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the electrical block diagram of signal processing unit of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail, but embodiment of the present utility model is also
It is not limited to this.
Embodiment
As it is shown in figure 1, reinforced earth bulkhead internal stress based on technology of Internet of things of the present utility model monitoring system, mainly
By controller, bin, signal processing unit, AD conversion unit, monitor for stress, signal processing unit, wireless signal
Transmitter unit, reception of wireless signals unit and PC computer 8 part composition.
Wherein, this controller uses AT89S51 single-chip microcomputer to realize.This monitor for stress is embedded in reinforced earth bulkhead
Portion, for measuring the ess-strain within reinforced earth bulkhead, it preferentially uses the FS-NM that Jiangxi Fashion Technology Co., Ltd. produces
Type built-in type strain gauge realizes.This AD conversion unit uses ADC0832 conversion chip, its CH1 pin to fill with stress monitoring
The signal output part put is connected, and its DO pin is then connected with the P0 pin of AT89S51 single-chip microcomputer.This bin is used for storing
The stress data collected, it is connected with the PSEN pin of AT89S51 single-chip microcomputer.The input of this signal processing unit with
The P1.1 pin of AT89S51 single-chip microcomputer is connected, and its outfan is then connected with wireless signal transmission unit.This wireless signal is sent out
Penetrate unit to be then connected with reception of wireless signals unit by wireless network.This PC computer then with this reception of wireless signals unit
Outfan is connected.This wireless signal transmission unit preferentially uses BCM1A wireless signal transmitting module, this reception of wireless signals list
Unit is preferential uses BCM1B reception of wireless signals module to realize.
As in figure 2 it is shown, this signal processing unit is by deaccentuator, the second-order filter being connected with deaccentuator
Amplifying circuit, and the constant-current source circuit composition being simultaneously connected with deaccentuator and second-order filter amplifying circuit.
Wherein, this deaccentuator by processing chip U, audion VT1, field effect transistor MOS, resistance R1, resistance R2, electricity
Resistance R3, resistance R4, resistance R9, resistance R10, inductance L1, diode D1, diode D2, diode D4, electric capacity C1, polar capacitor
C2, electric capacity C3 and electric capacity C4.
During connection, the N pole of diode D1 is connected with the VC pin processing chip U, its P pole and AT89S51 single-chip microcomputer
P1.1 pin is connected.One end of resistance R2 is connected with the P pole of diode D1, its other end ground connection.Polar capacitor C2 is just
Pole is connected with the P pole of diode D1, its negative pole is connected with the base stage of audion VT1.The positive pole of electric capacity C4 and diode D1
N pole be connected, its minus earth.Resistance R3 is serially connected between the emitter stage of audion VT1 and the negative pole of electric capacity C4.Diode
The P pole of D2 is connected with the colelctor electrode of audion VT1, its positive pole P pole with diode D1 after resistance R1 is connected.Electric capacity C1
Positive pole be connected with the N pole of diode D2, its negative pole is connected with the N pole of diode D1.The positive pole of electric capacity C3 and electric capacity C1
Positive pole be connected, its negative pole be connected with constant-current source circuit while ground connection.The N pole of diode D4 and field effect transistor MOS
Source electrode is connected, its P pole is connected with the RT pin processing chip U after resistance R4.Resistance R9 is serially connected in the N pole of diode D4
And process between the FB pin of chip U.One end of inductance L is connected with the drain electrode of field effect transistor MOS, its other end is through resistance
It is connected with constant-current source circuit and second-order filter amplifying circuit respectively after R10.
Meanwhile, ground connection, its VOUT pin while the described GND pin of process chip U is connected with the P pole of diode D4
Then be connected with the grid of field effect transistor MOS, its SW pin and VIN pin are all connected with constant-current source circuit.Described field effect
The drain electrode of pipe MOS is all connected with second-order filter amplifying circuit with source electrode.The P pole of described diode D4 is also amplified with second-order filter
Circuit is connected.The phase place of signal can well be corrected by this deaccentuator, reduces signal errors.In order to more preferably
Enforcement this utility model, this process chip U preferentially uses the integrated chip of LTC3402 to realize.
This constant-current source circuit can be that deaccentuator and second-order filter amplifying circuit provide constant operating current, from
And make deaccentuator and second-order filter amplifying circuit run more stable；It is by audion VT2, positive pole and audion VT2
Polar capacitor C5, the P pole that base stage is connected, negative pole is connected with the negative pole of electric capacity C3 with process chip U VIN pin be connected
Connect, Zener diode D3 that N pole is sequentially connected through resistance R6 colelctor electrode with audion VT2 after resistance R7, be serially connected in steady
Resistance R5 between P pole and the negative pole of electric capacity C3 of pressure diode D3, and be serially connected in the emitter stage of audion VT2 and process core
Resistance R8 composition between the SW pin of sheet U.
The colelctor electrode of this audion VT2 is sequentially connected through resistance R10 drain electrode with field effect transistor MOS after inductance L1.
The junction point of described resistance R6 and resistance R7 connects 15V voltage.Described second-order filter amplifying circuit then with the colelctor electrode of audion VT2
It is connected.
It addition, the interference signal in signal can be filtered by this second-order filter amplifying circuit, and to the letter after filtering
Number it is amplified processing, such that it is able to the weakening that offseting signal is occurred during distance is wirelessly transferred；It is by amplifying
Device P1, amplifier P2, audion VT3, diode D6, diode D5, polar capacitor C6, resistance R11, resistance R12, resistance R13,
Resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, polar capacitor C7, polar capacitor C8, polarity electricity
Hold C9, diode D7 and diode D8 composition.
During connection, the P pole of diode D6 is connected with the colelctor electrode of audion VT2, its N pole the most sequentially through resistance R11 and
After resistance R12, the P pole with diode D4 is connected.The P pole of diode D5 is connected with the drain electrode of field effect transistor MOS, its N pole with
The positive pole of polar capacitor C7 is connected.The negative pole of described polar capacitor C7 is connected with the negative pole of amplifier P1.Polar capacitor C6
Positive pole be connected with the N pole of diode D5, its minus earth.One end of resistance R13 is connected with the N pole of diode D6, it
Other end base stage with audion VT3 after resistance R15 is connected.The N pole of diode D7 is connected with the base stage of audion VT3
Connect, its P pole ground connection.Resistance R14 is serially connected between the P pole of diode D7 and the negative pole of amplifier P1.One end of resistance R16 with put
The outfan of big device P1 is connected, its other end negative pole with amplifier P2 after resistance R17 is connected.Polar capacitor C8 is just
Pole is connected with the colelctor electrode of audion VT3, its minus earth.One end of resistance R18 is connected with the positive pole of polar capacitor C8,
Its other end outfan with amplifier P2 after resistance R19 is connected.The N pole of diode D8 is connected with the positive pole of amplifier P2
Connect, its P pole is connected with the colelctor electrode of audion VT3.The positive pole of polar capacitor C9 is connected with the negative pole of amplifier P2, it is born
Pole then negative pole with polar capacitor C8 is connected.
Meanwhile, the colelctor electrode of this audion VT3 be connected with the positive pole of amplifier P4, its emitter stage then with field effect transistor
The source electrode of MOS is connected.The outfan of described amplifier P2 is then connected with wireless signal transmission unit.
Promethean deaccentuator of this signal processing unit and second-order filter amplifying circuit are used in combination, so that
The phase place of signal can be preferably corrected by deaccentuator, reduces the error of signal.It addition, can by this structure
So that the filter effect of second-order filter amplifying circuit promotes 20%, with distortionless, signal can be amplified simultaneously, additionally should
Signal processing unit is provided with constant-current source circuit the most cleverly, is put to deaccentuator and second-order filter by constant-current source circuit
Big circuit provides constant operating current, further improves the stability of signal processing unit.
During work, this monitor for stress is measured ess-strain within reinforced earth bulkhead and signal is transferred to modulus turns
Changing unit, the analogue signal that this AD conversion unit exports monitor for stress is converted to be sent to after digital signal control
Device, controller is sent to signal processing unit to signal after being identified processing, and by wireless signal transmission unit by wireless
Network is sent to reception of wireless signals unit, and monitoring personnel i.e. can be appreciated that monitoring result by PC computer.
As it has been described above, just can well realize this utility model.
Claims (5)
1. reinforced earth bulkhead internal stress based on a technology of Internet of things monitoring system, including controller, respectively with controller
Bin, AD conversion unit and the wireless signal transmission unit being connected, the stress monitoring being connected with AD conversion unit
Device, the reception of wireless signals unit being connected with wireless signal transmission unit by wireless network, and connect with wireless signal
Receive the PC computer that unit is connected；It is characterized in that, be also serially connected with at signal between controller and wireless signal transmission unit
Reason unit；Described signal processing unit is amplified electricity by deaccentuator, the second-order filter being connected with deaccentuator
Road, and the constant-current source circuit composition being simultaneously connected with deaccentuator and second-order filter amplifying circuit.
A kind of reinforced earth bulkhead internal stress based on technology of Internet of things the most according to claim 1 monitoring system, it is special
Levying and be, described deaccentuator is by processing chip U, and audion VT1, field effect transistor MOS, N pole and the VC processing chip U manage
The diode D1 that foot is connected, P pole is connected with controller, one end is connected with the P pole of diode D1, the electricity of other end ground connection
Resistance R2, the polar capacitor C2 that positive pole is connected with the P pole of diode D1, negative pole is connected with the base stage of audion VT1, positive pole and
The N pole of diode D1 is connected, the electric capacity C4 of minus earth, be serially connected in the emitter stage of audion VT1 and electric capacity C4 negative pole it
Between resistance R3, P pole be connected with the colelctor electrode of audion VT1, positive pole is connected with the P pole of diode D1 after resistance R1
Diode D2, the electric capacity C1 that positive pole is connected with the N pole of diode D2, negative pole is connected with the N pole of diode D1, positive pole and electricity
Electric capacity C3, the N pole of ground connection and field effect transistor MOS while the positive pole holding C1 is connected, negative pole is connected with constant-current source circuit
The diode D4 that source electrode is connected, P pole is connected with the RT pin processing chip U after resistance R4, is serially connected in the N of diode D4
Resistance R9 between pole and the FB pin processing chip U, and one end is connected with the drain electrode of field effect transistor MOS, other end warp
The inductance L composition being connected with constant-current source circuit and second-order filter amplifying circuit respectively after resistance R10；Described process chip U's
GND pin be connected with the P pole of diode D4 while ground connection, its VOUT pin be then connected with the grid of field effect transistor MOS,
Its SW pin is all connected with constant-current source circuit with VIN pin；The drain electrode of described field effect transistor MOS and source electrode are all and second-order filter
Amplifying circuit is connected；The P pole of described diode D4 is also connected with second-order filter amplifying circuit.
A kind of reinforced earth bulkhead internal stress based on technology of Internet of things the most according to claim 2 monitoring system, it is special
Levying and be, described constant-current source circuit is by audion VT2, and positive pole is connected with the base stage of audion VT2, negative pole is negative with electric capacity C3's
Polar capacitor C5, the P pole that pole is connected is connected with the VIN pin processing chip U, N pole is sequentially after resistance R6 and resistance R7
The Zener diode D3 being connected with the colelctor electrode of audion VT2, is serially connected in P pole and the negative pole of electric capacity C3 of Zener diode D3
Between resistance R5, and be serially connected in audion VT2 emitter stage and process chip U SW pin between resistance R8 composition；
The colelctor electrode of described audion VT2 is sequentially connected through resistance R10 drain electrode with field effect transistor MOS after inductance L1；Described electricity
The junction point of resistance R6 and resistance R7 connects 15V voltage；Described second-order filter amplifying circuit then colelctor electrode with audion VT2 is connected
Connect.
A kind of reinforced earth bulkhead internal stress based on technology of Internet of things the most according to claim 3 monitoring system, it is special
Levying and be, described second-order filter amplifying circuit is by the current collection of amplifier P1, amplifier P2, audion VT3, P pole and audion VT2
Pole is connected, N pole is the most sequentially through diode D6, P pole that resistance R11 is connected with the P pole of diode D4 after resistance R12 and field
The diode D5 that the drain electrode of effect pipe MOS is connected, N pole negative pole with amplifier P1 after polar capacitor C7 is connected, positive pole
Be connected with the N pole of diode D5, the polar capacitor C6 of minus earth, one end is connected with the N pole of diode D6, other end warp
Resistance R13, the N pole that after resistance R15, base stage with audion VT3 is connected is connected with the base stage of audion VT3, P pole ground connection
Diode D7, the resistance R14 being serially connected between the P pole of diode D7 and the negative pole of amplifier P1, one end and amplifier P1's
The resistance R16 that outfan is connected, other end negative pole with amplifier P2 after resistance R17 is connected, positive pole and audion VT3
Colelctor electrode be connected, the polar capacitor C8 of minus earth, one end is connected with the positive pole of polar capacitor C8, the other end is through resistance
Resistance R18, the N pole that after R19, outfan with amplifier P2 is connected is connected with the positive pole of amplifier P2, P pole and audion
The diode D8 that the colelctor electrode of VT3 is connected, and positive pole is connected with the negative pole of amplifier P2, negative pole then with polar capacitor C8
Negative pole be connected polar capacitor C9 composition；The colelctor electrode of described audion VT3 is connected with the positive pole of amplifier P4, it
Emitter-base bandgap grading is then connected with the source electrode of field effect transistor MOS；The outfan of described amplifier P2 is then connected with wireless signal transmission unit
Connect.
A kind of reinforced earth bulkhead internal stress based on technology of Internet of things the most according to claim 4 monitoring system, it is special
Levying and be, described process chip U is the integrated chip of LTC3402.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626449.3U CN205875230U (en) | 2016-06-22 | 2016-06-22 | Reinforced earth retaining wall inner stress monitoring system based on internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626449.3U CN205875230U (en) | 2016-06-22 | 2016-06-22 | Reinforced earth retaining wall inner stress monitoring system based on internet of things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205875230U true CN205875230U (en) | 2017-01-11 |
Family
ID=57691703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620626449.3U Withdrawn - After Issue CN205875230U (en) | 2016-06-22 | 2016-06-22 | Reinforced earth retaining wall inner stress monitoring system based on internet of things |
Country Status (1)
| Country | Link |
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| CN (1) | CN205875230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971032A (en) * | 2016-06-22 | 2016-09-28 | 中铁二局集团勘测设计院有限责任公司 | Internet of Things technology-based reinforced retaining wall inner stress monitoring system |
| CN111101549A (en) * | 2020-01-07 | 2020-05-05 | 北京国泰佳业科技发展有限公司 | Real-time bearing capacity limit monitoring method and system for retaining wall |
-
2016
- 2016-06-22 CN CN201620626449.3U patent/CN205875230U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971032A (en) * | 2016-06-22 | 2016-09-28 | 中铁二局集团勘测设计院有限责任公司 | Internet of Things technology-based reinforced retaining wall inner stress monitoring system |
| CN105971032B (en) * | 2016-06-22 | 2018-03-13 | 中铁二局集团勘测设计院有限责任公司 | A kind of reinforced earth bulkhead internal stress monitoring system based on technology of Internet of things |
| CN111101549A (en) * | 2020-01-07 | 2020-05-05 | 北京国泰佳业科技发展有限公司 | Real-time bearing capacity limit monitoring method and system for retaining wall |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170111 Effective date of abandoning: 20180313 |