CN209560696U - A kind of people's air defense gantry crane horn shape state detection system based on close to switch - Google Patents
A kind of people's air defense gantry crane horn shape state detection system based on close to switch Download PDFInfo
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- CN209560696U CN209560696U CN201920519398.8U CN201920519398U CN209560696U CN 209560696 U CN209560696 U CN 209560696U CN 201920519398 U CN201920519398 U CN 201920519398U CN 209560696 U CN209560696 U CN 209560696U
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Abstract
A kind of based on the people's air defense gantry crane horn shape state detection system close to switch includes: first close to switch, tablet and signal control cabinet；The real time position state electric signal of closed guard gate's relative induction plate is acquired close to switch, and sends signal input interface to；Tablet is set to outside closed guard gate, is had distance with close to switch, is cooperated close to switch and realize signal acquisition；Signal control cabinet, including processor, memory, signal input interface and signal output interface；Signal input interface receives live signal and sends processor to；Memory stores preset alarm electric signal, real time position state electric signal and by the people's air defense gantry crane horn shape state information after processor multilevel iudge；Live signal compared with preset alarm signal, is judged whether closed guard gate hangs angle by processor, and sends result to signal output interface；Signal output interface externally exports judging result.Angle is hung in this system prevention, improves safety and convenience；Structure is simple, at low cost.
Description
Technical field
The utility model belongs to closed guard gate's technical field, more particularly, to a kind of closed guard gate's state automatic detection system.
Background technique
Closed guard gate is exactly the door of people's protection works entrance, and for protecting the crowd of taking refuge, barrier poison gas, explosion killing are used
Door.
After closed guard gate's installation, under gravity or other external forces, door leaf meeting run-off the straight also referred to as " hangs angle ", state
Schematic diagram is as shown in Figure 4.When closed guard gate occurs more than when hanging angular region of design, one side closed guard gate will be not closed completely, cannot
Plugging action is played, in war or the attack of terrorism (especially when meeting with poison gas or nuclear radiation), to the people's
The security of the lives and property can not have the effect of being effectively protected；On the other hand, closed guard gate occurs after seriously hanging angle, and closed guard gate may enter
The area Gui Hang for invading Underground Rail Transit, forms huge hidden trouble of traffic.
Angle detection is hung for closed guard gate, patrol officer is currently relied primarily on and finds the problem during customary inspection, so
After report, realize the maintenance of closed guard gate.But such routine inspection mode may cause sternly because of that cannot find the problem in time
Weight consequence is found the problem in time so how to provide a kind of real-time detecting system of people's air defense gantry crane horn shape state, becomes this field urgency
Problem to be solved.
Utility model content
In view of this, the utility model is intended to provide a kind of people's air defense gantry crane horn shape state detection system based on close to switch,
Horn shape state is hung so as to real-time detection closed guard gate, prevention people's air defense gantry crane angle walks and transfinites in advance, improves safety and maintenance just
Victory.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of people's air defense gantry crane horn shape state detection system based on close to switch, comprising: the first close switch, tablet and letter
Number control cabinet；
Described first is set on closed guard gate close to switch, for the real time position shape to closed guard gate relative to the tablet
State electric signal is acquired, and is sent the signal control cabinet to and be compared processing；
The tablet is set to outside closed guard gate, has distance close between switching with described first, described close to switch
Extension line perpendicular to the tablet, the alarm critical surface for being parallel to the tablet with one on the extension line, In
First deviates close to switch to the critical surface described in when the closed guard gate hangs angle, when described first close to switch contact or
When across the critical surface, described first enters zone of alarm close to switch；
The signal control cabinet, including processor, memory, signal input interface and signal output interface；
The signal input interface, for receiving the real time position state electric signal and sending the processor to；
The memory, for storing preset alarm electric signal, real time position state electric signal and by the processor ratio
Compared with the people's air defense gantry crane horn shape state information after judgement；
The processor judges for the real time position state electric signal to be compared with preset alarm electric signal
Whether closed guard gate hangs angle, and sends judging result to the signal output interface；
The signal output interface, for externally being exported the judging result of the processor.
The signal control cabinet further includes power supply processing module, the 220v exchange that the power supply processing module is used to input
DC power supply needed for electricity is converted to system.
Further include onsite alarming device, the warning device receives the signal of the signal output interface output, for pair
It alarms when hanging horn shape state.
Further include second close to switch, described second close to switch be set to closed guard gate on, described first close to switch and
Described second is located on the same face of closed guard gate close to switch, and the two is concordant, there is certain spacing, the center of the two between the two
Line is parallel to the tablet, and the two shares one piece of tablet, and the alarm critical surface of the two is identical, in the closed guard gate
Second deviates close to switch to the critical surface described in when hanging angle, faces close to switch contact or across described when described second
When interface, described second enters zone of alarm close to switch；
Described second close switch is transmitted for being acquired to closed guard gate relative to the location status of the tablet
Processing is compared to the processor；
The processor compares the first closed guard gate's real time position shape acquired close to switch before judging whether to hang angle
State electric signal and described second close to switch acquisition closed guard gate's real time position state electric signal it is whether identical, judge two approach open
Close whether faulty failure；Two, close to when switch fault-free failure, approach the real time position state electric signals that switch acquires for two
It is compared respectively with preset alarm electric signal, when the two is all satisfied the condition for hanging angle, judges to hang angle.
It further include user terminal, the user terminal includes cloud platform and orbits controlling room, and the user terminal passes through network and institute
State signal output interface connection.
It further include signal box, the signal box is set between the signal control cabinet and the user terminal, for signal
The output signal of control cabinet carries out transfer, and the signal box is also used to carry out transfer to 220v alternating current.
The distance of described first close switch and the second close switch is 3-5 centimetres.
Compared with the existing technology, a kind of people's air defense gantry crane horn shape state detection system based on close to switch described in the utility model
System has the advantage that
Due to the adoption of the above technical scheme: the application has following beneficial effect
(1) system of the utility model acquires the inclined state of tenesmus of closed guard gate, processor by first close to switch
Real-time acquisition position state electric signal is compared with preset alarm electric signal, judge closed guard gate hang angle situation and in real time it is defeated
Out, horn shape state can be hung with real-time detection closed guard gate, prevention people's air defense gantry crane angle walks and transfinites in advance, improves safety and maintenance
Convenience；This programme structure is simple simultaneously, at low cost.
(2) power supply processing module is integrated in signal control cabinet, it is possible to reduce outside appurtenances facilitates installation and debugging.
(3) two concordant simultaneously to detect the location status electric signal of closed guard gate close to switch, on the one hand can be with
Location status electric signal close to switch acquisition is compared, it is intact close to switching if the two state is identical, if the two
State is different, has failure damaged condition close to switch, needs to overhaul two close to switch, avoids misrepresenting deliberately wrong report；It is another
The aspect two location status electric signals close to switch acquisition just carry out hanging angle alarm when identical as preset alarm electric signal, main
What the case where being directed to jack failure was designed, improve the precision for the detection failed to jack, high reliablity.
(4) user terminal is connect with signal output interface, can be convenient orbits controlling room and cloud platform to people's air defense gantry crane horn shape
State and understood in time close to switch situation, and then commander is scheduled to train, avoid accident, while also being facilitated pair
It hangs angle failure and carries out investigation overhaul management.
(5) setting of signal box, which facilitates, introduces signal control cabinet for power supply, and output signal is transferred to user terminal.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In
In attached drawing:
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic diagram of the utility model detection system signal control cabinet.
Fig. 3 is the structural schematic diagram of the utility model detection system signal box.
Fig. 4 is people's air defense gantry crane angle status diagram.
Fig. 5 is the angle schematic diagram that closed guard gate's difference hangs Angle Position state.
Fig. 6, Fig. 7 are the structural schematic diagram that different location is arranged in close to switch and tablet for the utility model.
Fig. 8 is the flow chart of 1 detection process of the utility model embodiment.
Fig. 9 is the flow chart of 2 detection process of the utility model embodiment.
Description of symbols:
1: people's air defense door main body, 1-1: signal control cabinet, 1-2: the first close to switch, and 1-3 second is close to be switched, 1-4 hinge,
2: ground, 2-1: jack, 2-2: placement platform, 2-3: tablet, 2-4: alarm critical surface, 3: signal box, 4: user terminal, 5:
Normal condition, 6: hanging horn shape state.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment 1, as shown in figs 1-9, a kind of people's air defense gantry crane horn shape state detection system based on close to switch, comprising: the
One close switch, tablet and signal control cabinet；
Described first is set on closed guard gate close to switch, for the real time position shape to closed guard gate relative to the tablet
State electric signal is acquired, and is sent the signal control cabinet to and be compared processing；
The tablet is set to outside closed guard gate, has distance close between switching with described first, described close to switch
Extension line perpendicular to the tablet, the alarm critical surface for being parallel to the tablet with one on the extension line, In
First deviates close to switch to the critical surface described in when the closed guard gate hangs angle, when described first close to switch contact or
When across the critical surface, described first enters zone of alarm close to switch；
The signal control cabinet, including processor, memory, signal input interface and signal output interface；
The signal input interface, for receiving the real time position state electric signal and sending the processor to；
The memory, for storing preset alarm electric signal, real time position state electric signal and by the processor ratio
Compared with the people's air defense gantry crane horn shape state information after judgement；
The processor judges for the real time position state electric signal to be compared with preset alarm electric signal
Whether closed guard gate hangs angle, and sends judging result to the signal output interface；
The signal output interface, for externally being exported the judging result of the processor.
This system acquires the inclined state of tenesmus of closed guard gate by first close to switch, and processor is to real-time acquisition position
State electric signal is compared with preset alarm electric signal, is judged hanging angle situation and exporting in real time for closed guard gate, can be examined in real time
That surveys closed guard gate hangs horn shape state, and prevention people's air defense gantry crane angle walks and transfinites in advance, improves the convenience of safety and maintenance；Simultaneously originally
Scenario-frame is simple, at low cost.
Memory includes memory and external memory, and interim swapace when memory is mainly processor work plays interim storage
And coordinative role, external memory major function are the necessary file that storage system operation needs, such as operating system, by different information point
(memory storage close switch acquisition information, preset value and judging result, external memory storage system fortune are not stored in memory and external memory
Style of writing part), facilitate calling, improves the speed of service.
Further, the signal control cabinet further includes power supply processing module, what the power supply processing module was used to input
DC power supply needed for 220v alternating current is converted to system.Power supply processing module is integrated in signal control cabinet, it is possible to reduce outer
Portion's accessory, facilitates installation and debugging.
It further, further include onsite alarming device, the warning device receives the signal of the signal output interface output,
For alarming when hanging horn shape state.Onsite alarming device facilitates scene to understand to hang angle and transfinite abnormal conditions, tieed up in time
Processing is repaired, the generation of accident is avoided.
Embodiment 2 further includes on that basis of example 1 second equal close to switch close to switch, described second further
On closed guard gate, described first is located on the same face of closed guard gate close to switch and described second close to switch, and the two position
On horizontal line near the same level door side, or on the same vertical line near same vertical door side, there is one between the two
Fixed spacing generally selects 3-5 centimetres, and the line of centres of the two is parallel to the tablet, and the two shares one piece of induction
The alarm critical surface of plate, the two is identical, when the closed guard gate hangs angle described in second close to switch it is inclined to the critical surface
It moves, when described second close to switch contact or across the critical surface, described second enters zone of alarm close to switch；
Described second close switch is transmitted for being acquired to closed guard gate relative to the location status of the tablet
Processing is compared to the processor；
The processor compares the first closed guard gate's real time position shape acquired close to switch before judging whether to hang angle
State electric signal and described second close to switch acquisition closed guard gate's real time position state electric signal it is whether identical, judge two approach open
Close whether faulty failure；Two, close to when switch fault-free failure, approach the real time position state electric signals that switch acquires for two
It is compared respectively with preset alarm electric signal, when the two is all satisfied the condition for hanging angle, judges to hang angle.
Two concordant simultaneously to detect the location status electric signal of closed guard gate close to switch, on the one hand can dock
The location status electric signal of nearly switch acquisition is compared, if the two state is identical (while being " 0 " or be simultaneously " 1 "), is connect
It closely switchs intact, if the two state is different (one is " 0 ", another is " 1 "), has failure damaged condition close to switch, need
Two are overhauled close to switch, avoid misrepresenting deliberately wrong report；On the other hand the two location status telecommunications close to switch acquisition
It just carries out hanging angle alarm (when two switches enter zone of alarm) when number identical as preset alarm electric signal, be primarily directed to
What the case where jack fails was designed, improve the precision for the detection failed to jack, high reliablity.
As shown in figure 5, when the position P0, closed guard gate is in there is no any horizontality for hanging angle, when the position P1, people's air defense
Door slightly run-off the straight, shape are angled θ1Hang angle, closed guard gate continues to tilt, and when the position P2, shape is angled θ2Hang angle,
Closed guard gate continues to tilt, and when the position P3, shape is angled θ3Hang angle, different angles of hanging corresponds to the different location status of closed guard gate
D1、D2。
Two can be optoelectronic switch close to switch simultaneously, can also simultaneously be electromagnetic induction switch, and optoelectronic switch is corresponding
Tablet be nontransparent plate, the corresponding tablet of electromagnetic induction switch be metal plate.
It further, further include user terminal, the user terminal includes cloud platform and orbits controlling room, and the user terminal passes through net
Network is connect with the signal output interface.User terminal is connect with signal output interface, can be convenient orbits controlling room and cloud platform
Understood in time to people's air defense gantry crane horn shape state and close to switch situation, and then commander is scheduled to train, accident is avoided to send out
It is raw, while also facilitating and carrying out investigation overhaul management to hanging angle failure.
It further, further include signal box, the signal box is set between the signal control cabinet and the user terminal, is used for
Transfer is carried out to the output signal of signal control cabinet, the signal box is also used to carry out transfer to 220v alternating current.Signal box
Setting, which facilitates, introduces signal control cabinet for power supply, and output signal is transferred to user terminal.
As shown in figure 8, the detection process of embodiment 1, includes the following steps:
Close to switch acquisition closed guard gate's real time position state electric signal, real time position state electric signal passes through letter for S1, first
Number input interface sends processor to；
S2, processor call the preset alarm electric signal in memory to be compared with real time position state electric signal, sentence
Whether disconnected closed guard gate hangs angle, and sends judging result to the signal output interface；If real time position state telecommunications
Number different from preset alarm electric signal, people's air defense door state is normal, return step S1；If real time position state electric signal and default
Alarming, electric signal is identical, and closed guard gate hangs angle, enters step S3；
S3, signal output interface send judging result to warning device, alarm.
It hangs horn shape condition to inclination close to switch by one to detect, structure is simple, at low cost.
As shown in figure 9, the detection process of embodiment 2, includes the following steps:
S1, the first close switch, the second close switch acquire the real time position state electric signal of closed guard gate respectively；Two connect
The real time position state electric signal closely switched passes through signal input interface and sends processor to；
S2, processor are compared two real time position state electric signals close to switch, if two location status
Electric signal is identical, enters step S3, if two location status electric signals are different, enter step S4 and sentence close to switch failure
It is disconnected；
S3, processor call preset alarm electric signal and two real time position states close to switch acquisition in memory
Electric signal is compared, and judges whether two real time position state electric signals meet the condition for hanging angle, and by judging result
Send the signal output interface to；If two real time position state electric signals are different from preset alarm electric signal, people's air defense
Door state is normal, return step S1；If two close to switch real time position state electric signals with preset alarm electric signal
It is identical, closed guard gate enter occur it is larger hang angle, enter step S6；If two real time position state electric signals close to switch have
One identical as preset alarm electric signal, another is different from preset alarm electric signal, enters step S4.
S4, delay a period of time, are usually arranged as 5-10s, once because jack fails, closed guard gate occurs seriously to hang angle
It is cracking, and if jack does not fail, what will not also occurs substantially and hang angle, even if hinge has damage, jack
The main reason for being supported well on the door, therefore hanging angle is exactly jack failure；During delay in real time to two
Location status electric signal carries out continuing to compare, if the two has unanimous circumstances, enters step S3, if the two is lasting different
It causes, judgement first, there are malfunction and failure situation, enters step S5 close to switch and second close to switching；
S5, signal output interface send judging result to warning device, alarm close to switch failure；
S6, signal output interface send judging result to warning device, carry out hanging angle alarm.
Horn shape condition hung to inclination detect close to switch by two, on the one hand by two close to switch acquisition
Location status electrical signal information is compared judgement close to the fault condition of switch: it is normal close to switch if the two is identical,
If the two is different, have failure damaged condition close to switch, need it is split put capable maintenance into, effectively avoid because close to switch failure
Caused by misrepresent deliberately wrong report, improve detection accuracy and reliability；On the other hand by two location status close to switch acquisition
Electric signal is compared with preset alarm electric signal respectively, if both identical as alarm electric signal, judges to occur biggish
It hangs angle situation (namely jack failure), this method can carry out auxiliary judgment to the failure of jack, while pass through delay
Period carries out continuing to compare to inconsistent real time position state electric signal, judges whether really fail close to switch, avoids one
A little instantaneous interference situations (for example mouse gets over induction zone or two close switches while entering the time difference existing for zone of alarm)
The case where influencing close to switch failure judging result improves the reliability judged close to switch failure.
Further, further include following steps:
S0, signal output interface send judging result to user terminal by network.
User terminal can make corresponding command scheduling or maintenance management according to judging result: such as judging result is to hang
Transfinite abnormality at angle, it is necessary to which command scheduling stops the train operation of respective stretch, and maintenance personal is sent to overhaul, and hangs angle
The reason of may be jack and/or hinge failure, maintenance personal checks maintenance one by one；If it is close to switch failure,
It needs first command scheduling to stop vehicle operation, maintenance personal is then sent to carry out timely maintenance and inspection replacement, in order to avoid influence train fortune
Capable or other accidents are restored normally to be open to traffic in time.Therefore safety of the communication of user terminal and signal control cabinet for rail traffic
It is very great to run meaning, the generation of some failures and accident can be prevented in advance, improves safety.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (9)
1. a kind of people's air defense gantry crane horn shape state detection system based on close to switch characterized by comprising the first close switch,
Tablet and signal control cabinet；
Described first is set on closed guard gate close to switch, for the real time position state electricity to closed guard gate relative to the tablet
Signal is acquired, and is sent the signal control cabinet to and be compared processing；
The tablet is set to outside closed guard gate, and with described first close to having distance between switch, the close switch prolonging
Line is stretched perpendicular to the tablet, there is an alarm critical surface for being parallel to the tablet on the extension line, described
First deviates close to switch to the critical surface described in when closed guard gate hangs angle, close to switch contact or passes through when described first
When the critical surface, described first enters zone of alarm close to switch；
The signal control cabinet, including processor, memory, signal input interface and signal output interface；
The signal input interface, for receiving the real time position state electric signal and sending the processor to；
The memory, for storing preset alarm electric signal, real time position state electric signal and relatively being sentenced by the processor
The people's air defense gantry crane horn shape state information having no progeny；
The processor judges people's air defense for the real time position state electric signal to be compared with preset alarm electric signal
Whether door hangs angle, and sends judging result to the signal output interface；
The signal output interface, for externally being exported the judging result of the processor.
2. the people's air defense gantry crane horn shape state detection system according to claim 1 based on close to switch, it is characterised in that: described
Signal control cabinet further includes power supply processing module, and the power supply processing module is used to the 220v alternating current of input being converted to system
Required DC power supply.
3. the people's air defense gantry crane horn shape state detection system according to claim 1 based on close to switch, it is characterised in that: also wrap
Include onsite alarming device, the warning device receives the signal of the signal output interface output, for when hanging horn shape state into
Row alarm.
4. the people's air defense gantry crane horn shape state detection system according to claim 1-3 based on close to switch, feature
Be: further include second close to switch, described second close to switch be set to closed guard gate on, described first close to switch and it is described
Second is located on the same face of closed guard gate close to switch, and the two is concordant, there is spacing between the two, and the line of centres of the two is parallel to
The tablet, the two share one piece of tablet, and the alarm critical surface of the two is identical, when the closed guard gate hangs angle
Described second deviates close to switch to the critical surface, when described second close to switch contact or across the critical surface, institute
It states second and enters zone of alarm close to switch；
Described second close switch sends institute to for being acquired to closed guard gate relative to the location status of the tablet
It states processor and is compared processing.
5. the people's air defense gantry crane horn shape state detection system according to claim 1 or 3 based on close to switch, it is characterised in that:
It further include user terminal, the user terminal includes cloud platform and orbits controlling room, and the user terminal is defeated by network and the signal
Outgoing interface connection.
6. the people's air defense gantry crane horn shape state detection system according to claim 2 based on close to switch, it is characterised in that: also wrap
User terminal is included, the user terminal includes cloud platform and orbits controlling room, and the user terminal is connect by network and signal output
Mouth connection.
7. the people's air defense gantry crane horn shape state detection system according to claim 6 based on close to switch, it is characterised in that: also wrap
Signal box is included, the signal box is set between the signal control cabinet and the user terminal, for the output to signal control cabinet
Signal carries out transfer, and the signal box is also used to carry out transfer to 220v alternating current.
8. the people's air defense gantry crane horn shape state detection system according to claim 4 based on close to switch, it is characterised in that: described
The distance of first close switch and the second close switch is 3-5 centimetres.
9. the people's air defense gantry crane horn shape state detection system according to claim 4 based on close to switch, it is characterised in that: also wrap
User terminal is included, the user terminal includes cloud platform and orbits controlling room, and the user terminal is connect by network and signal output
Mouth connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519398.8U CN209560696U (en) | 2019-04-17 | 2019-04-17 | A kind of people's air defense gantry crane horn shape state detection system based on close to switch |
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| CN201920519398.8U CN209560696U (en) | 2019-04-17 | 2019-04-17 | A kind of people's air defense gantry crane horn shape state detection system based on close to switch |
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| CN209560696U true CN209560696U (en) | 2019-10-29 |
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887244A (en) * | 2019-04-17 | 2019-06-14 | 天仁民防建筑工程设计有限公司 | A kind of people's air defense gantry crane horn shape state detection system and method based on close to switch |
| CN111664061A (en) * | 2020-06-15 | 2020-09-15 | 三一重能有限公司 | Fault diagnosis method and device for yaw system in wind generating set |
-
2019
- 2019-04-17 CN CN201920519398.8U patent/CN209560696U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887244A (en) * | 2019-04-17 | 2019-06-14 | 天仁民防建筑工程设计有限公司 | A kind of people's air defense gantry crane horn shape state detection system and method based on close to switch |
| CN109887244B (en) * | 2019-04-17 | 2023-07-04 | 成都天仁民防科技有限公司 | Civil air defense door lifting angle state detection system and method based on proximity switch |
| CN111664061A (en) * | 2020-06-15 | 2020-09-15 | 三一重能有限公司 | Fault diagnosis method and device for yaw system in wind generating set |
| CN111664061B (en) * | 2020-06-15 | 2021-12-17 | 三一重能有限公司 | Fault diagnosis method and device for yaw system in wind generating set |
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Effective date of registration: 20191125 Address after: No. 1104-12, building 2, No. 118, weijianian 1st Road, Jinniu District, Chengdu City, Sichuan Province Patentee after: Chengdu Tianren Civil Defense Technology Co.,Ltd. Address before: 100036 room 1328, 13 floor, 5 building, Lianhua court, Haidian District, Beijing. Patentee before: TIANREN CIVIL DEFENSE CONSTRUCTION ENGINEERING DESIGN CO.,LTD. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191029 Effective date of abandoning: 20230704 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191029 Effective date of abandoning: 20230704 |