CN221079219U - Railway equipment humidity controller - Google Patents
Railway equipment humidity controller Download PDFInfo
- Publication number
- CN221079219U CN221079219U CN202322874479.9U CN202322874479U CN221079219U CN 221079219 U CN221079219 U CN 221079219U CN 202322874479 U CN202322874479 U CN 202322874479U CN 221079219 U CN221079219 U CN 221079219U
- Authority
- CN
- China
- Prior art keywords
- humidity
- equipment
- module
- control center
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000006854 communication Effects 0.000 claims abstract description 48
- 238000004891 communication Methods 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000004364 calculation method Methods 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 230000001276 controlling effect Effects 0.000 claims abstract description 7
- 230000007175 bidirectional communication Effects 0.000 claims description 12
- 238000012800 visualization Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 101100494773 Caenorhabditis elegans ctl-2 gene Proteins 0.000 claims description 3
- 101100112369 Fasciola hepatica Cat-1 gene Proteins 0.000 claims description 3
- 101100005271 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) cat-1 gene Proteins 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a humidity controller of railway equipment, which relates to the technical field of railway traffic equipment, and comprises a fan control center, a fan control center and a control unit, wherein the fan control center is used for collecting humidity parameter values in equipment and regulating and controlling the humidity in the equipment: the intelligent control system is provided with the fan control center and the host control center, humidity parameter values inside the equipment are collected through the fan control center, humidity inside the equipment is regulated and controlled, the accuracy of calculation speed and calculation accuracy are guaranteed through the host control center, meanwhile, wireless data transmission and communication are carried out among the equipment, when the intelligent control system is used, the humidity conditions inside the equipment are collected through the humidity sensor, the service life of the equipment is prolonged, original equipment line power supply is not occupied, independent power supply through the solar module is adopted, the supply of whole power resources is guaranteed, intelligent management, analysis and use are carried out on the whole humidity controller, and the whole intelligent management and control level is improved.
Description
Technical Field
The utility model relates to the technical field of railway traffic equipment, in particular to a humidity controller of railway equipment.
Background
Railway systems are used outdoors for operating environmental reasons, and are exposed to the outdoor environment for a long period of time, and various natural factors adversely affect these railway systems, wherein humidity is a very important factor. Taking a switch machine as an example, the switch machine is important signal basic equipment for reliably switching the switch position, changing the switch opening direction, locking the switch tongue and reflecting the switch position, and can well ensure the driving safety, improve the transportation efficiency and improve the labor intensity of driving personnel. Judging whether the switch rail is tightly attached to the stock rail or not through information fed back by the switch machine, when the switch machine fails, the condition that the control console has received the switch machine to finish the switch position conversion and the switch rail fails to attach to the stock rail can occur, so that misjudgment is caused, and serious loss is caused.
The electrohydraulic switch machine commonly used on the railway at present is influenced by weather conditions, so that the internal mechanism of the electrohydraulic switch machine can malfunction, for example, when the interior of the switch machine is in a high-humidity environment for a long time, the internal parts are decayed, especially the phenomenon that the transmission mechanism is blocked once decayed, so that the service life of the switch machine is reduced, and certain potential safety hazards exist. In the prior art, the fault state of the switch machine is mainly monitored on the notch of the switch machine, so that whether the switch machine works normally or not is judged, but an effective solution for environmental control in the switch machine is not available. In fact, not only the switch machine, but also a plurality of railway equipment used outdoors including a transformer and a junction box have the problem, so the present utility model needs to design a humidity controller for railway equipment to solve the above-mentioned problems.
Disclosure of utility model
The utility model aims to provide a humidity controller for railway equipment, which aims to solve the problems that in the prior art, the electrohydraulic switch machine commonly used on the railway is influenced by weather conditions, so that the internal mechanism of the electrohydraulic switch machine is out of order, for example, when the interior of the switch machine is in a high humidity environment for a long time, the interior parts are decayed, and particularly, the phenomenon that the transmission mechanism is blocked once decayed occurs, so that the service life of the switch machine is reduced, and a certain potential safety hazard exists. In the prior art, the fault state of the switch machine is mainly monitored on the notch of the switch machine, so that whether the switch machine works normally or not is judged, but the problem that the environment control in the switch machine is not effective is solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a railway equipment humidity controller comprising:
The fan control center is used for collecting humidity parameter values in the equipment and regulating and controlling the humidity in the equipment;
And the host control center is used for ensuring the rapidness of the calculation speed and the accuracy of the calculation precision and simultaneously carrying out wireless data transmission and communication among the devices.
Preferably, the host control center comprises a main control chip module, a wireless communication module and a solar power supply module, wherein the wireless communication module and the solar power supply module are in bidirectional communication connection with the main control chip module.
Preferably, the main control chip module is used for ensuring the rapidness of the calculation speed and the accuracy of the calculation precision by using the microcontroller;
the wireless communication module is used for carrying out wireless data transmission and communication among the devices;
The solar power supply module is used for converting solar radiation energy into electric energy, sending the electric energy into the storage battery and supplying the electric energy to the load for work.
Preferably, the fan control center comprises a fan control module and a humidity acquisition module, and the fan control module and the humidity acquisition module are both in bidirectional communication connection with the host control center.
Preferably, the fan control module is used for regulating and controlling the humidity inside the equipment;
The humidity acquisition module is used for acquiring humidity parameter values inside the equipment.
Preferably, each device comprises a solar cell panel, a storage battery, a fan, a main control panel, a temperature and humidity sensor and a ventilation device, wherein a control chip is fixedly connected to the inside of the main control panel, and the solar cell panel, the fan, the storage battery, the main control panel, the temperature and humidity sensor and the ventilation device are electrically connected with the control chip.
Preferably, the temperature precision of the temperature and humidity sensor is +/-0.3 ℃, and the humidity precision is +/-2% RH.
Preferably, the fan is a direct-current baking-free motor, and the solar power supply module comprises a voltage conversion chip and a filter capacitor.
Preferably, the main control chip module comprises a microcontroller unit, a communication protocol unit and a memory unit, wherein the microcontroller unit, the communication protocol unit and the memory unit are in bidirectional communication connection with the main control chip module;
The microcontroller unit is used for serial communication interface, analog-to-digital converter, PWM output and Ethernet control;
The communication protocol unit is used for supporting various communication protocols and interface standards, such as USB, CAN and Ethernet;
the memory unit includes a flash memory and an on-chip RAM for external connection through a plurality of pins.
Preferably, the wireless communication module comprises a network access unit, a wireless data transmission terminal and a visualization unit, wherein the network access unit, the wireless data transmission terminal and the visualization unit are in bidirectional communication connection with the wireless communication module;
The network access unit is used for supporting the network access of the three operators 4G Cat-1;
The wireless data transmission terminal is used for being oriented to different scenes in multiple fields, and has the use scene of the LTE wireless data transmission terminal with high speed, low delay and simple use;
The visualization unit is used for realizing online parameter customization of the communication gateway product by using the cloud, performing visualization on a flow line, and supporting power supply of a wide voltage terminal by adopting an industrial design standard; built-in independent hardware watchdog; the protection level facing to severe environments is improved, applicability in more fields is expanded, networking application can be realized by powering on, the mobile phone can be added/configured by scanning codes, the mobile phone can skip login by scanning, the operation and maintenance cost is low, simplicity and rapidness are realized, and the offline communication cost is reduced.
Compared with the prior art, the utility model has the beneficial effects that: the intelligent humidity controller is provided with the fan control center and the host control center, humidity parameter values inside the equipment are collected through the fan control center, humidity inside the equipment is regulated and controlled, the host control center is arranged to ensure the rapidness of calculation speed and the accuracy of calculation accuracy, meanwhile, wireless data transmission and communication are carried out among the equipment, when the intelligent humidity controller is used, the humidity conditions inside the equipment are collected through the humidity sensor, the fan is controlled through the pid control algorithm, the humidity state inside the equipment is further regulated, the equipment works in a more ideal environment, the service life of the equipment is prolonged, the driving risk caused by equipment faults is reduced, the equipment can be installed without damaging the original equipment structure, the original equipment circuit is not occupied for supplying power, the solar module is used for independently supplying power, and the supply of whole electric power resources is guaranteed, so that the intelligent management, analysis and use are carried out on the whole humidity controller, and the whole intelligent management and control level are improved.
Drawings
FIG. 1 is a block diagram of a structure provided by the present utility model;
FIG. 2 is a schematic diagram of an external interface of the dehumidifier according to the present utility model;
FIG. 3 is a schematic diagram of a power circuit provided by the present utility model;
fig. 4 is an overall structure diagram of the humidity controller provided by the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, 2, 3 and 4, the present utility model provides a technical solution: a railway equipment humidity controller comprising:
The fan control center is used for collecting humidity parameter values in the equipment and regulating and controlling the humidity in the equipment;
And the host control center is used for ensuring the rapidness of the calculation speed and the accuracy of the calculation precision and simultaneously carrying out wireless data transmission and communication among the devices.
Further, the host control center comprises a main control chip module, a wireless communication module and a solar power supply module, wherein the wireless communication module and the solar power supply module are in bidirectional communication connection with the main control chip module, and the main control chip module is used for ensuring the rapidness of the calculation speed and the accuracy of the calculation precision by using a high-performance 32-bit microcontroller based on an ARM Cortex-M3 kernel; the wireless communication module is used for carrying out wireless data transmission and communication among the devices; the solar power supply module is used for converting solar radiation energy into electric energy, sending the electric energy into the storage battery and supplying the electric energy to the load for work.
Further, the fan control center comprises a fan control module and a humidity acquisition module, the fan control module and the humidity acquisition module are both in bidirectional communication connection with the host control center, and the fan control module is used for regulating and controlling the humidity inside the equipment; the humidity acquisition module is used for acquiring humidity parameter values inside the equipment.
Further, each device comprises a solar cell panel, a storage battery, a fan, a main control board, a temperature and humidity sensor and a ventilation device, wherein a control chip is fixedly connected to the inside of the main control board, and the solar cell panel, the fan, the storage battery, the main control board, the temperature and humidity sensor and the ventilation device are electrically connected with the control chip.
Further, the temperature precision of the temperature and humidity sensor is +/-0.3 ℃, and the humidity precision is +/-2% RH; adopt digital interface, this module can provide very accurate temperature and humidity measurement result, and the data of carrying can directly transmit to MCU after digital processing, has the low-power consumption design simultaneously, and the response is quick, can obtain the humiture reading in several milliseconds, has powerful EMC performance, can resist outside electromagnetic interference effectively to ensure the accuracy and the stability of sensor, humidity acquisition module links to each other with the main control board through four pin external interface, and sensor information is gone up to the timing, temperature and humidity sensor is swiss SENSIRION sensor chip.
Furthermore, the fan is a direct current baking-free motor, compared with a traditional AC motor, the energy consumption can be reduced by 70%, low-power operation brings low heat productivity to the motor, flame-retardant materials are adopted to wrap the motor to reduce the operation loss, the service life is greatly prolonged, the solar power supply module comprises a voltage conversion chip and a filter capacitor, the functions of current limiting, surge protection, high frequency filtering, common mode interference filtering and the like are realized, C23, C20, C21, C22, C25 and C27 are the same capacitors, the capacitors are used for filtering high-frequency interference, the first end of the capacitors are connected with a high level, and the second end of the capacitors are connected with a ground wire; u3 is a 12V-to-5V chip; u15 is a 5V to 3.3V chip.
Further, the main control chip module comprises a microcontroller unit, a communication protocol unit and a memory unit, wherein the microcontroller unit, the communication protocol unit and the memory unit are in bidirectional communication connection with the main control chip module; the microcontroller unit is used for serial communication interfaces, analog and digital converters, PWM output and Ethernet control, adopts a 32-bit RISC architecture, has high performance, low power consumption and rich peripheral interfaces, is provided with an ARM Cortex-M3 kernel, and has a working frequency in a range of tens of MHz to hundreds of MHz; the communication protocol unit is used for supporting various communication protocols and interface standards, such as USB, CAN, ethernet and the like, so that data exchange and communication with other devices CAN be conveniently realized;
the memory unit includes a flash memory and an on-chip RAM for external connection through a plurality of pins.
Further, the wireless communication module comprises a network access unit, a wireless data transmission terminal and a visualization unit, wherein the network access unit, the wireless data transmission terminal and the visualization unit are in bidirectional communication connection with the wireless communication module; the network access unit is used for supporting the network access of the three operators 4G Cat-1; the wireless data transmission terminal is used for being oriented to different scenes in multiple fields, and has the use scene of the LTE wireless data transmission terminal with high speed, low delay and simple use; the visualization unit is used for realizing online parameter customization of the communication gateway product by using the cloud, performing visualization on a flow line, and supporting power supply of a wide voltage terminal by adopting an industrial design standard; built-in independent hardware watchdog; the protection level facing to severe environments is improved, applicability in more fields is expanded, networking application can be realized by powering on, the mobile phone can be added/configured by scanning codes, the mobile phone can skip login by scanning, the operation and maintenance cost is low, simplicity and rapidness are realized, and the offline communication cost is reduced.
It can be understood that the intelligent humidity control system is provided with the fan control center and the host control center, the humidity parameter value inside the equipment is collected by the fan control center, the humidity inside the equipment is regulated and controlled, the rapidity of calculation speed and the accuracy of calculation accuracy are ensured by the host control center, meanwhile, wireless data transmission and communication are carried out among the equipment, when the intelligent humidity control system is used, the fan is controlled by adopting the humidity condition inside the humidity sensor to collect the humidity condition inside the equipment, and then the pid control algorithm is utilized to control the fan so as to adjust the humidity condition inside the equipment, so that the equipment works in a more ideal environment, the service life of the equipment is prolonged, the driving risk caused by equipment faults is reduced, the equipment can be installed without occupying the original equipment line power supply, the solar module is adopted for independent power supply, and the supply of whole power resources is ensured, thereby the intelligent management, analysis and use of the whole humidity controller are carried out, and the whole intelligent management and control level are improved.
Those of ordinary skill in the art will appreciate that the modules and method steps of the examples described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or as a combination of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present utility model.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus, device and module described above may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus, system, and method may be implemented in other ways. For example, the system embodiments described above are merely illustrative, e.g., the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple modules or units may be combined or integrated into another device, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or apparatuses, which may be in electrical, mechanical or other form.
The modules used as fan control, humidity acquisition, main control chip, wireless communication and solar power supply can be or not physically separated, and the components displayed as the modules can be or not physical units, namely can be located in one place or can be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, it should be noted that the combination of the technical features described in the present invention is not limited to the combination described in the claims or the combination described in the specific embodiments, and all the technical features described in the present invention may be freely combined or combined in any manner unless contradiction occurs between them.
Claims (10)
1. A railway equipment humidity controller, comprising:
The fan control center is used for collecting humidity parameter values in the equipment and regulating and controlling the humidity in the equipment;
And the host control center is used for ensuring the rapidness of the calculation speed and the accuracy of the calculation precision and simultaneously carrying out wireless data transmission and communication among the devices.
2. The railway equipment humidity controller of claim 1, wherein: the host control center comprises a main control chip module, a wireless communication module and a solar power supply module, wherein the wireless communication module and the solar power supply module are in bidirectional communication connection with the main control chip module.
3. The railway equipment humidity controller of claim 2, wherein:
the main control chip module is used for ensuring the rapidness of the calculation speed and the accuracy of the calculation precision by using the microcontroller;
the wireless communication module is used for carrying out wireless data transmission and communication among the devices;
The solar power supply module is used for converting solar radiation energy into electric energy, sending the electric energy into the storage battery and supplying the electric energy to the load for work.
4. The railway equipment humidity controller of claim 1, wherein: the fan control center comprises a fan control module and a humidity acquisition module, and the fan control module and the humidity acquisition module are both in bidirectional communication connection with the host control center.
5. The railway equipment humidity controller of claim 4, wherein:
the fan control module is used for regulating and controlling the humidity inside the equipment;
The humidity acquisition module is used for acquiring humidity parameter values inside the equipment.
6. A railway equipment humidity controller according to claim 3, wherein: each device comprises a solar cell panel, a storage battery, a fan, a main control panel, a temperature and humidity sensor and a ventilation device, wherein a control chip is fixedly connected to the inside of the main control panel, and the solar cell panel, the fan, the storage battery, the main control panel, the temperature and humidity sensor and the ventilation device are electrically connected with the control chip.
7. A railway equipment humidity controller as in claim 6 wherein: the temperature precision of the temperature and humidity sensor is +/-0.3 ℃, and the humidity precision is +/-2% RH.
8. The railway equipment humidity controller of claim 6, wherein: the fan is a direct-current baking-free motor, and the solar power supply module comprises a voltage conversion chip and a filter capacitor.
9. A railway equipment humidity controller according to claim 3, wherein: the main control chip module comprises a microcontroller unit, a communication protocol unit and a memory unit, wherein the microcontroller unit, the communication protocol unit and the memory unit are in bidirectional communication connection with the main control chip module;
The microcontroller unit is used for serial communication interface, analog-to-digital converter, PWM output and Ethernet control;
The communication protocol unit is used for supporting various communication protocols and interface standards, such as USB, CAN and Ethernet;
the memory unit includes a flash memory and an on-chip RAM for external connection through a plurality of pins.
10. A railway equipment humidity controller according to claim 3, wherein: the wireless communication module comprises a network access unit, a wireless data transmission terminal and a visualization unit, wherein the network access unit, the wireless data transmission terminal and the visualization unit are in bidirectional communication connection with the wireless communication module;
The network access unit is used for supporting the network access of the three operators 4G Cat-1;
The wireless data transmission terminal is used for being oriented to different scenes in multiple fields, and has the use scene of the LTE wireless data transmission terminal with high speed, low delay and simple use;
the visualization unit is used for realizing online parameter customization of the communication gateway product by using the cloud, and performing visualization on a flow line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322874479.9U CN221079219U (en) | 2023-10-26 | 2023-10-26 | Railway equipment humidity controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322874479.9U CN221079219U (en) | 2023-10-26 | 2023-10-26 | Railway equipment humidity controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221079219U true CN221079219U (en) | 2024-06-04 |
Family
ID=91254148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322874479.9U Active CN221079219U (en) | 2023-10-26 | 2023-10-26 | Railway equipment humidity controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221079219U (en) |
-
2023
- 2023-10-26 CN CN202322874479.9U patent/CN221079219U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100350714C (en) | Intelligent observing and controlling system | |
| CN103149528B (en) | System and method for testing transducer PCBA (printed circuit board assembly) | |
| CN103840552A (en) | Power distribution room monitoring method and system | |
| CN110994803A (en) | Join in marriage electrical information acquisition and processing system of electrical room | |
| CN213937960U (en) | Multi-frequency-band communication gateway and power monitoring system thereof | |
| CN204425271U (en) | There is the photovoltaic supervising device of arc-detection function | |
| CN221079219U (en) | Railway equipment humidity controller | |
| CN108064109A (en) | A kind of 4G illuminating street lamp intelligent controllers based on Internet of Things | |
| CN117193409A (en) | Railway equipment humidity controller | |
| CN216134479U (en) | Communication sharing device based on RS485 | |
| CN213637736U (en) | Remote online broadband carrier communication detection device and power line carrier operation and maintenance system | |
| CN111555167B (en) | Box-type substation and photovoltaic power generation system | |
| CN210605701U (en) | Safe energy efficiency acquisition terminal | |
| CN209358247U (en) | A kind of distribution network automated monitoring system | |
| CN111596128A (en) | Single-phase intelligent electric energy meter for monitoring UPS power supply | |
| CN111650868A (en) | Micro-power consumption multifunctional integrated data acquisition unit | |
| CN111446775A (en) | Wiring-free centralized control type power distribution automatic terminal and system thereof | |
| CN201717615U (en) | Motor protector | |
| CN218938373U (en) | Multi-loop collector | |
| CN105591466A (en) | Intelligent power monitoring and control system | |
| CN216599891U (en) | Intelligent data monitoring system | |
| CN220139288U (en) | Flexible modularized power distribution automatic terminal | |
| CN209992570U (en) | Electric energy measuring device | |
| CN210927069U (en) | Intelligent monitoring device for branch circuit switch | |
| CN216530513U (en) | Distributed programmable relay protection and information acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |