CN210268717U - Real-time monitoring device for underground water level and soil humidity of ditch head landfill area - Google Patents
Real-time monitoring device for underground water level and soil humidity of ditch head landfill area Download PDFInfo
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- CN210268717U CN210268717U CN201920985547.XU CN201920985547U CN210268717U CN 210268717 U CN210268717 U CN 210268717U CN 201920985547 U CN201920985547 U CN 201920985547U CN 210268717 U CN210268717 U CN 210268717U
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Abstract
The utility model discloses a real-time monitoring device for the underground water level and the soil humidity of a ditch head landfill area, which comprises an underground water observation well arranged in an area to be monitored, wherein a drop-in liquid level transmitter is placed in the underground water observation well, senses the water level change of underground water and transmits data to an environment monitoring cloud platform through a data acquisition module; the underground water observation well is characterized in that a plurality of soil moisture transmitters are arranged on the well wall of the underground water observation well in a layered mode, each soil moisture transmitter transmits collected signals to a signal bus, the signal bus is connected with an environment monitoring host, the environment monitoring host is in wireless connection with an environment monitoring cloud platform, and a user remotely logs in the environment monitoring cloud platform and the environment monitoring cloud platform to check real-time data; the data acquisition module and the environment monitoring host are connected with the power supply module, and the power supply module comprises a storage battery and two power supply branches. The utility model discloses can monitor the water level and the soil moisture real-time data of groundwater simultaneously, reduce work load, improve the data precision.
Description
Technical Field
The utility model belongs to environmental monitoring and protection field, concretely relates to first landfill district ground water level of ditch and soil moisture real-time supervision device, provide the data basis for exploring the destruction reason of the first landfill district engineering measure of loess plateau.
Background
The loess plateau is one of auspicious places of ancient civilizations of Chinese nationalities, has fine loess particles and soft soil quality, contains rich mineral nutrients, is beneficial to cultivation, breeds residents of the first generation of yellow land and the second generation of yellow land, but also becomes one of the most serious water and soil loss and the most vulnerable ecological environment in the world due to special geomorphologic characteristics, climate types and soil quality characteristics. In recent years, during the process of construction of the tableland fixing and protecting project and ecological environment treatment, a plurality of ground subsidences and ground cracks are generated, real-time monitoring of the groundwater level and the soil humidity in a ditch head landfill area is inevitable, and a monitoring device and a monitoring technology are important means for scientific research.
In the process of water and soil loss prevention and treatment research, four water and soil loss prevention and treatment measures are mainly adopted at present, namely farming measures, biological forest and grass measures, ecological restoration and engineering measures. Because loess plateau geological structure soil property characteristic is special, the damage that many solid ditch guarantor tableland engineering measures received groundwater level lift and soil water content variation easily causes a large amount of geological disasters' emergence, for example the hardening treatment engineering to the ditch head after the ditch head landfill, because of the inhomogeneous settlement of ground, lead to concrete fracture, produce the crack.
Therefore, the groundwater level and the soil humidity in the trench head landfill area need to be monitored in real time, and the relationship among the soil humidity threshold value, the groundwater level threshold value and the soil uneven settlement is explored through developing a monitoring device and a corresponding method.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem among the above-mentioned prior art, provide a ditch head landfill district ground water level and soil moisture real-time supervision device, can monitor ground water level and soil moisture simultaneously, the operation is stable, and the reliability is high.
In order to realize the purpose, the utility model discloses a technical scheme be: the environment monitoring system comprises an underground water observation well arranged in an area to be monitored, wherein a drop-in type liquid level transmitter is placed in the underground water observation well, senses the water level change of underground water and transmits data to an environment monitoring cloud platform through a data acquisition module; the underground water observation well is characterized in that a plurality of soil moisture transmitters are arranged on the well wall of the underground water observation well in a layered mode, each soil moisture transmitter transmits collected signals to a signal bus, the signal bus is connected with an environment monitoring host, the environment monitoring host is wirelessly connected with an environment monitoring cloud platform, and a user remotely logs in the environment monitoring cloud platform and the environment monitoring cloud platform to check real-time data; the data acquisition module and the environment monitoring host are connected with the power supply module.
The power supply module comprises a storage battery and two power supply branches which are simultaneously connected with the storage battery; one path is that the civil power grid charges the storage battery through the intelligent charger, and the other path is that the solar panel charges the storage battery through the solar panel controller; the intelligent charger and the solar panel controller play roles in short circuit open circuit protection and overcharge and overdischarge protection.
The input type liquid level transmitter is connected with the data acquisition module through a coaxial cable, and the solar cell panel, the solar cell panel controller, the storage battery and the data acquisition module are all connected through a wire.
Solar cell panel installs on solar panel support, and solar panel support middle part is with the stainless steel receiver, and the stainless steel receiver is used for accomodating solar cell panel controller, intelligent charger, battery, data acquisition module and environmental monitoring host computer.
The solar panel support is made of stainless steel square tubes.
The wall of the underground water observation well is a PVC pipe, an outer pipe is sleeved at the bottom of the underground water observation well, the bottom end of the underground water observation well is closed, a spiral closing cover is arranged at the upper part of the outer pipe, an insertion hole of the inner pipe is reserved in the center of the cover, water inlet holes are uniformly formed in the whole wall of the outer pipe, and a fine sand layer, a medium sand layer and a coarse sand layer are sequentially wrapped outside the wall from inside to outside; the inner pipe extends to the ground, a water inlet hole is formed in the wrapped part of the outer pipe, and the water inlet hole and the position below the water inlet hole are wrapped by a layer of geotextile.
The water inlet hole on the inner pipe is smaller than that on the outer pipe and is arranged on the upper part, and the groundwater filtered by the outer pipe is primarily precipitated through the space between the inner pipe and the outer pipe. Soil moisture changer pass through the buckle and fix on the wall of a well of groundwater observation well, the buckle comprises two semi-circular PVC material modules fixed position structure, fixed position structure's top is equipped with the bolt hole, fix on the fixed position of groundwater observation well through the bolt, wherein a semi-circular PVC material module outside middle part is equipped with protruding cylinder, reserve three on the protruding cylinder and tie up the groove, soil moisture changer's for the ribbon tie up on protruding cylinder, and the other comb line hole that is equipped with of protruding cylinder, play fixed carding effect to soil moisture changer's wire.
The environment monitoring host and the environment monitoring cloud platform are in GPRS wireless connection.
The utility model discloses a monitoring method of ditch head landfill district ground water level and soil moisture real-time supervision device, including following step:
firstly, generating a monitoring signal in real time through a throwing-in type liquid level transmitter placed in an underground water observation well and a soil moisture transmitter fixed on the outer wall of the underground water observation well in a layering manner;
secondly, transmitting the underground water level signal generated by the input type liquid level transmitter to a data acquisition module; a soil moisture signal generated by the soil moisture transmitter is converged to a signal bus and transmitted to the environment monitoring host through the signal bus;
step three, the data acquisition module transmits the water level data to an environment monitoring cloud platform through a built-in wireless transmission module; the environment monitoring host transmits the soil moisture signal to an environment monitoring cloud platform through a built-in wireless transmission module;
and step four, the user logs in the environment monitoring cloud platform and the environment monitoring cloud platform to check the real-time data.
The wireless transmission module is provided with a mobile phone flow card, data transmission to the environment monitoring cloud platform and the environment monitoring cloud platform can send monitoring data and analysis results to a terminal with a reserved mobile phone number, the terminal with the reserved mobile phone number can also send a setting short message to the mobile phone flow card, and the setting of the monitoring range of the water level data and the soil humidity data is completed remotely.
Compared with the prior art, the utility model discloses ditch head landfill district ground water level and soil moisture real-time supervision device can monitor the water level and the soil moisture real-time data of groundwater simultaneously, through treating that monitoring area sets up the groundwater observation well, place the income formula liquid level transmitter in the middle of the groundwater observation well, a plurality of soil moisture transmitters of layer arrangement on the wall of a well of groundwater observation well, the operation is stable, high reliability, user's long-range logging in environment monitoring cloud platform and environment monitoring cloud platform can conveniently look over real-time data, the simultaneous monitoring of two kinds of functions has been realized to loess plateau ditch head landfill district, with regard to the destruction of loess plateau ditch head landfill district engineering measure, explore destruction reason and ground water level and soil moisture relation, establish the theoretical basis for formulating scientific solid ditch protecting plateau engineering measure.
Further, the utility model discloses a power module includes the battery and simultaneously for the two way power supply branch roads of battery powered, single power supply system probably leads to the system outage when receiving the harm, if rural electric network has a power failure, the idle time circuit overhauls and does not supply power, or solar energy power supply system meets with adverse weather environment like cloudy rainy day, or because of the long-time snow of solar panel, the laying dust causes the conversion efficiency condition such as low excessively, also can not guarantee that power supply system is hundred incessants. The utility model discloses power module adopts the double-circuit power supply, is rural electric wire netting all the way, and another way is solar cell panel, and two the tunnel all are battery charging, and solar cell panel controller and intelligent charging ware play the overcharge protection to the battery, and the battery is the device power supply again, reaches the requirement of long-term stable power supply.
Further, the solar cell panel support is stainless steel side's nest of tubes and constitutes, adopts bolted connection, and simple to operate is swift, can play fine fixed effect, and the stainless steel receiver plays the guard action to placing device wherein, prevents the damage of wind, rain and sunshine.
Furthermore, the underground water observation well of the utility model is made of PVC pipes which are corrosion-resistant and oxidation-resistant, thereby saving the complex work of solidifying the well wall; the bottom of groundwater observation well is equipped with the structure of preventing silt and getting into, and inside and outside two-layer pipe is jointly prevented silt, and two-layer pipe all is equipped with the hole of permeating water, guarantees that ground water level is unanimous with well water level, and the skin is to the groundwater of getting into and is pre-treated, and the groundwater of getting into is just deposiing in the headspace between two-layer, and the inlayer parcel geotechnological cloth keeps apart silt once more, guarantees that the groundwater that gets into the inner tube carries still less silt, solves bottom silt jam problem, prevents effectively that input liquid level transmitter from taking place.
Drawings
Fig. 1 is a schematic view of the overall structure of the real-time monitoring device of the present invention;
FIG. 2 is an overall flow chart of the monitoring method of the present invention;
fig. 3 is a schematic connection diagram of the dual power supply module of the present invention;
FIG. 4 is a schematic view of a solar panel support of the present invention;
FIG. 5 is a schematic view of the bottom anti-clogging structure of the groundwater observation well of the present invention;
in the drawings: 1-civil power grid; 2-a solar panel; 3-a storage battery; 4-a drop-in level transmitter; 5-a data acquisition module; 6-underground water observation well; 6-1, an outer tube; 6-2. water inlet holes; 6-3, geotextile; 6-4, fine sand layer; 6-5, a medium sand layer; 6-6. coarse sand layer; 7-a soil moisture transmitter; 8-buckling; 9-environment monitoring host computer; 10-solar panel support; 10-1, hanging hooks; 10-2. bolt; 10-3 bolt holes; 10-4. fixing screws; 11. concrete; 12-stainless steel receiver box; 12-1, box buckle; 12-2, an outlet hole and an antenna outlet; 12-3. a coded lock; 13-a solar panel controller; 14-Intelligent charger.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses groundwater level and soil moisture real-time supervision device mainly includes two parts, groundwater level monitoring devices and soil moisture monitoring devices. The underground water level monitoring device mainly comprises a power supply module and a data acquisition and transmission module; the power supply module adopts two paths for power supply, one path is connected with a civil power grid 1, the other path adopts a solar panel 2 for power supply, the civil power grid 1 is connected with an intelligent charger 14 and is connected with a storage battery 3, the solar panel 2 is connected with a solar panel controller 13 and is also connected with the storage battery 3, and then the storage battery 3 supplies power for the soil and underground water monitoring device; the data acquisition module 5 and the input type liquid level transmitter 4 form a data acquisition transmission module, wherein the input type liquid level transmitter 4 is placed in the underground water observation well 6 to sense the water level change of underground water, and the data acquisition module 5 acquires data and transmits the acquired data to the environment monitoring cloud platform.
Soil moisture monitoring devices uses same power supply with ground water level monitoring devices, a plurality of soil moisture transmitters 7 are fixed in on buckle 8, install on the wall of a well of groundwater observation well 6 in the subdivision layer, the layering is to soil moisture monitoring, signal transmission to signal bus that each soil moisture transmitter 7 will gather, signal bus connects environment monitoring host 9, environment monitoring host 9 adopts GPRS wireless transmission to environment monitoring cloud platform, user long-range login, can look over real-time data.
Referring to fig. 3, the power supply module of the real-time monitoring device for groundwater level and soil humidity of the present invention includes two parts, one is that the civil power grid 1 is connected with the intelligent charger 14 to charge the storage battery 3; and secondly, the solar panel 2 is combined with a storage battery 3 for supplying power, the solar panel 2 is connected with a solar panel controller 13 and then connected with the storage battery 3, the converted electric energy is stored in the storage battery 3, and the solar panel controller 13 and the intelligent charger 14 mainly play roles in short-circuit open-circuit protection and overcharge and overdischarge protection.
The power supply module supplies power to the underground water level monitoring device and the soil humidity monitoring device, and the output voltage is 12V according to the device requirement.
The utility model discloses a throw-in liquid level changer 4 and data acquisition module 5 and pass through coaxial cable and be connected, solar cell panel 2, solar cell panel controller 13, battery 3 and data acquisition module 5 all pass through the wire and connect. The input type liquid level transmitter 4 completes signal generation, and the data acquisition module 5 completes data conversion and signal transmission; the soil moisture transmitter 7 senses the signal change, the signal is converged into the bus and then transmitted to the environment monitoring host 9, and the signal transmission is completed through the environment monitoring host 9.
Referring to FIG. 5, the well wall of the underground water observation well 6 is a PVC pipe, the bottom silt prevention device comprises an inner pipe and an outer pipe 6-1, the outer pipe 6-1 is nested at the bottom of the inner pipe, the height is 50cm, the diameter is 2 times of that of the inner pipe, the bottom of the inner pipe is closed, the upper part of the outer pipe 6-1 is provided with a spiral cover closing mode, an inner pipe inserting hole is reserved in the center of the cover, the whole wall is provided with uniform water inlet holes 6-2, and the wall is sequentially wrapped with a fine sand layer 6-4, a medium sand layer 6-5 and a coarse sand layer 6-6; the inner pipe extends to the ground, the upper part of the inner pipe wrapped by the outer pipe is provided with uniform water inlet holes 6-2, and the water inlet holes and the positions below the water inlet holes are wrapped by a layer of geotextile 6-3, so that the problem of bottom sediment blockage is solved.
The intermediate space between the inner pipe and the outer pipe 6-1 can make initial precipitation on the groundwater filtered by the outer pipe 6-1, the water inlet hole of the inner pipe is smaller than that of the outer pipe 6-1 and is arranged on the upper part, so that precipitated silt is prevented from entering the inner pipe, and the purpose of preventing silt from entering the inner pipe is achieved. The soil moisture transmitter 7 mainly comprises a probe, a power line and a transmission lead, and is used for acquiring signals and transmitting the signals to the environment monitoring host 9.
The utility model discloses a buckle 8 is the PVC material, mainly accomplishes monitoring position fixing and soil moisture changer probe fixing, and position fixing comprises two semicircular PVC materials, and the height is 4cm, and the top is equipped with the bolt hole, fixes on the fixed position of groundwater observation well 6 with the bolt; protruding cylinder is established at one of them semicircle outside middle part, and 3 are reserved to the cylinder and are tied up the groove, and soil moisture changer for the probe ribbon tie up on protruding cylinder, accomplish soil moisture changer 7 fixed, and the other comb line hole that is equipped with of cylinder plays fixed carding effect to 7 wires of soil moisture changer. The environment monitoring host 9 mainly comprises a power supply hole, a flow card slot, a signal interface and an antenna pedestal; and transmitting the soil moisture transmitter signal to an environment monitoring cloud platform.
Referring to fig. 4, the utility model discloses real-time supervision device's solar panel support 10 material is stainless steel square pipe for fixed solar cell panel 2, stainless steel receiver 12 is installed at the support middle part, places equipment, and wire hole and antenna outlet 12-2 are established in the bottom, attach and take equipment in the trick lock 12-3 protection box. Solar panel support 10 mainly comprises 12 stainless steel square pipes and stainless steel receiver 12, and the bottom of solar panel support 10 is fixed in concrete 11, accomplishes fixed purpose.
The utility model discloses groundwater water level and soil moisture real-time supervision method in loess plateau ditch head landfill district, including following step:
firstly, signals are generated in real time through a throwing-in type liquid level transmitter 4 placed in an underground water level observation well 6 and a soil moisture transmitter 7 fixed on the outer wall of the underground water level observation well 6 in a layering mode.
Secondly, transmitting the underground water level signal generated by the input type liquid level transmitter 4 to a data acquisition module 5; the soil moisture signal generated by the soil moisture transmitter 7 is collected to the bus and transmitted to the environment monitoring host 9 by the bus.
Step three, the data acquisition module 5 transmits the water level data to an environment monitoring cloud platform through a built-in GPRS wireless transmission module; the environment monitoring host 9 transmits the soil moisture signal to the environment monitoring cloud platform through the built-in GPRS wireless transmission module.
And step four, the user logs in the environment monitoring cloud platform and the environment monitoring cloud platform to check real-time data or check the real-time data on the mobile equipment.
In the first step, the input type liquid level transmitter 4 is placed at the bottom of the underground water observation well 6; the bottom end of the outer wall of the underground water observation well 6 is provided with a soil moisture transmitter 7, and a plurality of soil moisture transmitters are sequentially arranged upwards by 1m in a layered mode at intervals.
And in the third step, the GPRS wireless transmission is provided with a mobile phone traffic card, transmits the data to the environment platform, and completes the transmission of monitoring data and analysis results to the mobile phone number reserved by the environment platform. The mobile equipment with the mobile phone number reserved in the environment platform can send a short message to a mobile phone flow card in GPRS wireless transmission to complete the setting of the monitoring range of the water level data and the soil humidity data.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and it should be understood by those skilled in the art that the present invention can be modified and replaced by other embodiments without departing from the spirit and principle of the present invention, and all such modifications and substitutions are intended to be included within the scope of the appended claims.
Claims (8)
1. The utility model provides a ditch head landfill district ground water level and soil moisture real-time supervision device which characterized in that: the environment monitoring system comprises an underground water observation well (6) arranged in an area to be monitored, wherein a throwing-in type liquid level transmitter (4) is placed in the underground water observation well (6), and the throwing-in type liquid level transmitter (4) senses the water level change of underground water and transmits data to an environment monitoring cloud platform through a data acquisition module (5);
a plurality of soil moisture transmitters (7) are arranged on the well wall of the underground water observation well (6) in a layered mode, each soil moisture transmitter (7) transmits an acquired signal to a signal bus, the signal bus is connected with an environment monitoring host (9), the environment monitoring host (9) is wirelessly connected with an environment monitoring cloud platform, and a user remotely logs in the environment monitoring cloud platform and the environment monitoring cloud platform to check real-time data; the data acquisition module (5) and the environment monitoring host (9) are connected with the power supply module.
2. The trench head landfill underground water level and soil humidity real-time monitoring device of claim 1, wherein: the power supply module comprises a storage battery (3) and two power supply branches which are simultaneously connected with the storage battery (3);
wherein, one path is that the civil power grid (1) charges the storage battery (3) through the intelligent charger (14), and the other path is that the solar panel (2) charges the storage battery (3) through the solar panel controller (13); the intelligent charger (14) and the solar panel controller (13) play roles in short-circuit open-circuit protection and overcharge and overdischarge protection.
3. The trench head landfill underground water level and soil humidity real-time monitoring device of claim 2, wherein: the throw-in type liquid level transmitter (4) is connected with the data acquisition module (5) through a coaxial cable, and the solar cell panel (2), the solar cell panel controller (13), the storage battery (3) and the data acquisition module (5) are connected through wires.
4. The trench head landfill underground water level and soil humidity real-time monitoring device of claim 2, wherein: the solar panel (2) is arranged on a solar panel support (10), a stainless steel storage box (12) is attached to the middle of the solar panel support (10), and the stainless steel storage box (12) is used for storing a solar panel controller (13), an intelligent charger (14), a storage battery (3), a data acquisition module (5) and an environment monitoring host (9); the solar panel support (10) is made of stainless steel square tubes.
5. The trench head landfill underground water level and soil humidity real-time monitoring device of claim 1, wherein: the wall of the underground water observation well (6) is a PVC pipe, an outer pipe (6-1) is sleeved at the bottom of the underground water observation well (6), the bottom end of the underground water observation well (6) is closed, a spiral closed cover is arranged at the upper part of the outer pipe (6-1), an insertion hole of the inner pipe is reserved in the center of the cover, water inlet holes (6-2) are uniformly formed in the whole wall of the outer pipe (6-1), and a fine sand layer (6-4), a medium sand layer (6-5) and a coarse sand layer (6-6) are sequentially wrapped outside the wall from inside to outside; the inner pipe extends to the ground, a water inlet hole (6-2) is formed in the part, wrapped by the outer pipe (6-1), of the inner pipe, and the water inlet hole (6-2) and the part, below the water inlet hole (6-2), of the inner pipe are wrapped by a layer of geotextile (6-3).
6. The trench head landfill underground water level and soil humidity real-time monitoring device of claim 5, wherein: the water inlet hole (6-2) on the inner pipe is smaller than that on the outer pipe (6-1) and is arranged on the upper part, and the groundwater filtered by the outer pipe (6-1) is primarily precipitated through the space between the inner pipe and the outer pipe (6-1).
7. The trench head landfill underground water level and soil humidity real-time monitoring device of claim 1, wherein: soil moisture changer (7) fix on the wall of a well of groundwater observation well (6) through buckle (8), buckle (8) constitute fixed position structure by two semi-circular PVC material modules, fixed position structure's top is equipped with the bolt hole, fix on the fixed position of groundwater observation well (6) through the bolt, wherein a semi-circular PVC material module outside middle part is equipped with protruding cylinder, reserve the three groove of tying up on the protruding cylinder, the other comb line hole that is equipped with of probe of soil moisture changer (7) is tied up on protruding cylinder, play fixed carding effect to the wire of soil moisture changer (7).
8. The trench head landfill underground water level and soil humidity real-time monitoring device of claim 1, wherein: the environment monitoring host (9) is in GPRS wireless connection with the environment monitoring cloud platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985547.XU CN210268717U (en) | 2019-06-27 | 2019-06-27 | Real-time monitoring device for underground water level and soil humidity of ditch head landfill area |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920985547.XU CN210268717U (en) | 2019-06-27 | 2019-06-27 | Real-time monitoring device for underground water level and soil humidity of ditch head landfill area |
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| CN210268717U true CN210268717U (en) | 2020-04-07 |
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| CN201920985547.XU Expired - Fee Related CN210268717U (en) | 2019-06-27 | 2019-06-27 | Real-time monitoring device for underground water level and soil humidity of ditch head landfill area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207758A (en) * | 2019-06-27 | 2019-09-06 | 长安大学 | A kind of ditch head landfill area's level of ground water and soil moisture real-time monitoring device and method |
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2019
- 2019-06-27 CN CN201920985547.XU patent/CN210268717U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207758A (en) * | 2019-06-27 | 2019-09-06 | 长安大学 | A kind of ditch head landfill area's level of ground water and soil moisture real-time monitoring device and method |
| WO2020259362A1 (en) * | 2019-06-27 | 2020-12-30 | 长安大学 | Real-time monitoring apparatus and method for groundwater level and soil moisture in gully head landfill region |
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| GR01 | Patent grant | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Huo Aidi Inventor after: Yang Lei Inventor after: Huang Zhikai Inventor after: Chen Siming Inventor after: Chen Sibin Inventor after: Li Congyi Inventor after: Wen Dieran Inventor before: Huo Aidi Inventor before: Yang Lei Inventor before: Huang Zhikai Inventor before: Chen Siming Inventor before: Chen Sibin Inventor before: Li Congyi Inventor before: Wen Dieran |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 Termination date: 20200627 |