CN113936444A - Automatic gas alarm batch verification system - Google Patents

Automatic gas alarm batch verification system Download PDF

Info

Publication number
CN113936444A
CN113936444A CN202111194247.8A CN202111194247A CN113936444A CN 113936444 A CN113936444 A CN 113936444A CN 202111194247 A CN202111194247 A CN 202111194247A CN 113936444 A CN113936444 A CN 113936444A
Authority
CN
China
Prior art keywords
gas
detection
alarm
detected
gas alarm
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.)
Pending
Application number
CN202111194247.8A
Other languages
Chinese (zh)
Inventor
于霄鹏
宋龙波
魏斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zibo Institute Of Metrology Technology
Original Assignee
Zibo Institute Of Metrology Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zibo Institute Of Metrology Technology filed Critical Zibo Institute Of Metrology Technology
Priority to CN202111194247.8A priority Critical patent/CN113936444A/en
Publication of CN113936444A publication Critical patent/CN113936444A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12Checking intermittently signalling or alarm systems

Abstract

The application relates to an automatic gas alarm examines and determine system in batches includes: terminal equipment, gas analysis appearance, for the examination gas storage chamber and many gas detection passageway. During implementation, the gas storage chamber for detection provides gas for detection for the gas analyzer and the gas alarm to be detected; the gas alarm data acquisition unit acquires detection data of a gas alarm to be detected on gas for detection and sends the detection data of the gas alarm to be detected to the terminal equipment; the gas analyzer detects gas to be detected and sends detection data to the terminal equipment; the terminal equipment compares the detection data of the gas to be detected by the gas alarm to be detected and the gas analyzer, and generates a comparison result based on a report format and report format contents which are pre-recorded by a user. In this application, can examine and determine a plurality of gas alarm that wait to examine simultaneously to according to the form output contrast result of user's customization, improved examination efficiency and examination precision when reducing manpower consumption.

Description

Automatic gas alarm batch verification system
Technical Field
The application relates to the technical field of alarm verification, in particular to an automatic gas alarm batch verification system.
Background
At present, the demand of gas alarm products in the industries of petrochemical industry, ferrous metallurgy, pharmacy and the like is continuously increased, the workload of local metering and calibrating mechanisms is increasingly increased, and the mass testing technology of the gas alarm is still lagged behind. In the prior art, a manual detection method is adopted for data testing of the gas alarm, so that the cost is high, the efficiency is low, and the consumed time is long.
Disclosure of Invention
The system comprises a data acquisition unit, a data acquisition unit and a data processing unit.
The scheme of the application is as follows:
an automated gas alarm batch verification system comprising:
the gas detection device comprises terminal equipment, a gas analyzer, a gas storage chamber for verification and a plurality of gas detection channels;
each gas detection channel is internally provided with: the gas alarm comprises a gas supply channel, a gas alarm data acquisition unit and a gas alarm to be detected;
the terminal equipment is respectively connected with the gas analyzer and each gas alarm data collector;
the gas storage chamber for verification is respectively connected with the gas analyzer and each gas supply channel;
the gas storage chamber for verification is used for providing verification gas for the gas analyzer and the gas alarm to be verified;
the gas alarm data collector is used for collecting the detection data of the gas alarm to be detected on the gas for detection and sending the detection data of the gas alarm to be detected on the gas for detection to the terminal equipment;
the gas analyzer is used for detecting the gas to be detected and sending detection data of the gas to be detected to the terminal equipment;
the terminal equipment is used for comparing the gas alarm to be detected with the detection data of the gas for detection by the gas analyzer, and generating a comparison result based on a report form format and report form content which are pre-input by a user.
Preferably, in an implementation manner of the present application, the method further includes: a flow controller;
the flow controller is arranged at the gas storage chamber for verification and used for controlling the gas flow provided by the gas storage chamber for verification.
Preferably, in an implementable manner of the present application, each of the gas detection channels further has disposed therein: a detection table;
the detection table is used for placing the gas alarm to be detected.
Preferably, in an implementable manner of the present application, each of the gas detection channels further has disposed therein: a multi-channel program control signal converter;
the detection table base is provided with an electric turntable;
the multi-path program control signal converter is connected with the electric turntable and used for controlling the electric turntable to rotate and drive the gas alarm to be detected on the detection table to rotate.
Preferably, in an implementable manner of the present application, each of the gas detection channels further has disposed therein: a negative pressure air exhaust device;
the multi-path program control signal converter is also connected with the negative pressure exhaust device and is used for controlling the opening/closing/rotating speed of the negative pressure exhaust device.
Preferably, in an implementable manner of the present application, each of the gas detection channels further has disposed therein: mechanical and molecular pump sets;
the mechanical pump and the molecular pump set are used for evacuating the gas of the gas detection channel.
Preferably, in an implementable manner herein,
the outer side of the gas storage chamber for verification is provided with a drawing opening and closing door;
and a plurality of gas storage bottles are arranged in the gas storage chamber for verification, and the gas storage bottles are used for storing the gas for verification.
Preferably, in an implementation manner of the present application, the method further includes: a printer;
the printer is connected with the terminal equipment;
and the terminal equipment is used for controlling the printer to print and output the comparison result.
Preferably, in an implementation manner of the present application, the terminal device is further configured to store the detection data of the gas for verification by each gas alarm to be verified in a classified manner.
Preferably, in an implementation manner of the present application, the terminal device is further configured to store the comparison result corresponding to each gas alarm to be verified in a classified manner.
The technical scheme provided by the application can comprise the following beneficial effects: automatic gaseous alarm examines and determine system in batches in this application includes: terminal equipment, gas analysis appearance, for the examination gas storage chamber and many gas detection passageway. All be provided with in each gas detection passageway: the gas detection device comprises a gas supply channel, a gas alarm data collector and a gas alarm to be detected, wherein the terminal equipment is respectively connected with a gas analyzer and each gas alarm data collector, and a gas storage chamber for detection is respectively connected with the gas analyzer and each gas supply channel. During implementation, the gas storage chamber for detection provides gas for detection for the gas analyzer and the gas alarm to be detected; the gas alarm data acquisition unit acquires detection data of the gas alarm to be detected on the gas for detection, and sends the detection data of the gas alarm to be detected on the gas for detection to the terminal equipment; the gas analyzer detects gas to be detected and sends detection data of the gas to be detected to the terminal equipment; the terminal equipment compares the detection data of the gas to be detected by the gas alarm to be detected and the gas analyzer, and generates a comparison result based on a report format and report format contents which are pre-recorded by a user. In this application, can examine and determine a plurality of gas alarm that wait to examine simultaneously to according to the form output contrast result of user's customization, improved examination efficiency and examination precision when reducing manpower consumption.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic diagram of an automated gas alarm batch verification system according to one embodiment of the present application;
fig. 2 is a schematic structural diagram of an automatic gas alarm batch verification system according to another embodiment of the present application.
Reference numerals: a terminal device-1; a gas supply channel-2; a gas alarm data collector-3; a gas analyzer-4; a gas alarm to be detected-5; a gas storage chamber-6 for verification; a detection table-7; a printer-8.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
An automated gas alarm batch verification system, referring to fig. 1, comprising:
the device comprises a terminal device 1, a gas analyzer 4, a gas storage chamber 6 for verification and a plurality of gas detection channels;
all be provided with in each gas detection passageway: the gas alarm device comprises a gas supply channel 2, a gas alarm data acquisition unit 3 and a gas alarm device 5 to be detected;
the terminal equipment 1 is respectively connected with a gas analyzer 4 and each gas alarm data collector 3;
the gas storage chamber 6 for verification is respectively connected with the gas analyzer 4 and each gas supply channel 2;
the verification gas storage chamber 6 is used for supplying verification gas to the gas analyzer 4 and the gas alarm to be detected 3;
the gas alarm data collector 3 is used for collecting detection data of the gas alarm 5 to be detected on the gas for detection and sending the detection data of the gas alarm 5 to be detected on the gas for detection to the terminal equipment 1;
the gas analyzer 4 is used for detecting the gas to be detected and sending the detection data of the gas to be detected to the terminal equipment 1;
the terminal device 1 is used for comparing the detection data of the gas to be detected by the gas alarm 5 and the gas analyzer 4, and generating a comparison result based on the report format and the report format content which are pre-recorded by the user.
In this embodiment, the gas analyzer 4 is used to comprehensively calibrate the alarm error, the full-range error, the repeatability error, the response time, the zero drift and the range drift of the gas alarm.
The terminal device 1 in this embodiment may be various computer devices. Preferably, the terminal device 1 is further configured to store the detection data of the gas used for detection by each gas alarm 5 to be detected in a classified manner, and the terminal device 1 is further configured to store the comparison results corresponding to each gas alarm 5 to be detected in a classified manner, where the classification refers to classifying different types of gas alarms 5 to be detected. The classified storage is more convenient for follow-up workers to inquire the historical data through the terminal equipment 1.
In this embodiment, the terminal device 1 can also generate a comparison result according to the report format and the report format content pre-entered by the user, which is more humanized.
The automatic gas alarm batch verification system in the embodiment is provided with a plurality of gas detection channels, so that a plurality of gas alarms 5 to be verified can be verified at the same time.
The gas analyzer 4 in this embodiment is used as a standard measuring instrument, and the detection data of all the gas alarms 5 to be detected are compared with the data of the gas analyzer 4 by error, and the comparison result is calculated to be used as the detection result.
Preferably, the gas detection channel in this embodiment comprises an independent closed negative pressure gas chamber for placing the gas alarm 5 to be detected.
Preferably, in the present embodiment, the gas supply channel 2 is isolated from the power supply circuit of each device, so as to prevent the flammable and explosive gas from generating gas explosion.
The data acquisition unit 3 of the gas alarm in this embodiment performs signal acquisition and conditioning, and converts the 16-bit a/D signal into a digital signal. The gas alarm data acquisition unit 3 is preferably designed by high-precision components, such as resistors with the precision of 1% o, and a resistor network is used for reducing the resistor error; the error caused by interference on the circuit is reduced by adopting a second-order filter circuit; the 16-bit AD conversion module is used, the acquisition precision is high, and the MCU adopts digital filtering to improve the detection precision.
The automatic gas alarm batch verification system in the embodiment can simultaneously verify a plurality of gas alarms 5 to be verified, and output comparison results according to a format customized by a user, thereby reducing the manpower consumption and improving the verification efficiency and the verification precision.
The automated gas alarm batch verification system in some embodiments, further comprising: a flow controller;
the flow rate controller is provided at the verification gas storage chamber 6 for controlling the flow rate of the gas supplied from the verification gas storage chamber 6.
Preferably, in this embodiment, a digital flowmeter is further provided at the verification gas storage chamber 6 to collect gas flow data.
In this embodiment, the flow controller acquires data of the digital flow meter, and controls the gas flow output from the pump to the gas analyzer 4 and each gas supply channel 2 in the PID mode, so that the flow rate is controlled within a range of 1% standard requirements. Preferably, the flow controller in this embodiment adopts high-precision 16-bit AD and PWM, and adopts a PID algorithm, so as to ensure that the flow setting is issued by PC software within the standard range of the flow controller, and the flow is automatically adjusted according to different gases and concentrations.
In some embodiments, referring to fig. 2, the automatic gas alarm batch verification system further includes: a detection table 7;
the detection table 7 is used for placing the gas alarm 5 to be detected.
In this embodiment, still be provided with in gaseous testing channel and examine test table 7, place through examining test table 7 and wait to examine and determine gas alarm 5, it is more steady.
Further, each gas detection channel is provided with: a multi-channel program control signal converter;
the base of the detection table 7 is provided with an electric turntable;
the multi-path program control signal converter is connected with the electric turntable and used for controlling the electric turntable to rotate so as to drive the gas alarm 5 to be detected on the detection table 7 to rotate.
In this embodiment, still be provided with electric turntable at the 7 bases of test table, connect electric turntable through the program-controlled signal converter of multichannel, control electric turntable rotates and drives and wait to examine and determine gas alarm 5 on the test table 7 and rotate to adjust the position direction of waiting to examine and determine gas alarm 5.
In some embodiments, the automatic gas alarm batch verification system further includes: a negative pressure air exhaust device;
the multi-path program control signal converter is also connected with a negative pressure exhaust device and is used for controlling the opening/closing/rotating speed of the negative pressure exhaust device.
In this embodiment, a negative pressure exhaust device is further provided, and the opening/closing/rotation speed of the negative pressure exhaust device is controlled by the multi-path program control signal converter.
In some embodiments, the automatic gas alarm batch verification system further includes: mechanical and molecular pump sets;
the mechanical pump and the molecular pump set are used for evacuating the gas in the gas detection channel.
In this embodiment, a mechanical pump and a molecular pump set are provided in each gas detection channel to evacuate the non-detection gas in each gas detection channel after the end of the verification or before the start of the verification.
The automated gas alarm batch verification system in some embodiments,
a drawing open-close door is arranged on the outer side of the gas storage chamber 6 for verification;
a plurality of gas storage bottles for storing the gas for the verification are disposed in the verification gas storage chamber 6.
In the embodiment, the gas storage chamber 6 for verification is used for storing verification gas, so that the gas in the gas storage chamber can be replaced more conveniently through the drawing design.
Preferably, a plurality of gas storage bottles are disposed in the verification gas storage chamber 6 to store different gases.
The gas storage cylinder may be, but is not limited to, a steel cylinder.
The automated gas alarm batch verification system in some embodiments, with reference to fig. 2, further comprises: a printer 8;
the printer 8 is connected with the terminal device 1;
the terminal device 1 is used for controlling the printer 8 to print out the comparison result.
In this embodiment, a printer is further configured, the printer is connected to the terminal device 1, and the terminal device 1 controls the printer to print and output the comparison result.
In this embodiment, automatic gas alarm examines and determine system in batches can carry out batch data acquisition to a plurality of gas alarms, contrast, generates the comparison result and printout.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. An automatic gas alarm batch verification system, comprising:
the gas detection device comprises terminal equipment, a gas analyzer, a gas storage chamber for verification and a plurality of gas detection channels;
each gas detection channel is internally provided with: the gas alarm comprises a gas supply channel, a gas alarm data acquisition unit and a gas alarm to be detected;
the terminal equipment is respectively connected with the gas analyzer and each gas alarm data collector;
the gas storage chamber for verification is respectively connected with the gas analyzer and each gas supply channel;
the gas storage chamber for verification is used for providing verification gas for the gas analyzer and the gas alarm to be verified;
the gas alarm data collector is used for collecting the detection data of the gas alarm to be detected on the gas for detection and sending the detection data of the gas alarm to be detected on the gas for detection to the terminal equipment;
the gas analyzer is used for detecting the gas to be detected and sending detection data of the gas to be detected to the terminal equipment;
the terminal equipment is used for comparing the gas alarm to be detected with the detection data of the gas for detection by the gas analyzer, and generating a comparison result based on a report form format and report form content which are pre-input by a user.
2. The automated gas alarm batch verification system of claim 1, further comprising: a flow controller;
the flow controller is arranged at the gas storage chamber for verification and used for controlling the gas flow provided by the gas storage chamber for verification.
3. The automated gas alarm batch verification system according to claim 1, wherein each of the gas detection channels further comprises: a detection table;
the detection table is used for placing the gas alarm to be detected.
4. The automated gas alarm batch verification system according to claim 3, wherein each of the gas detection channels further comprises: a multi-channel program control signal converter;
the detection table base is provided with an electric turntable;
the multi-path program control signal converter is connected with the electric turntable and used for controlling the electric turntable to rotate and drive the gas alarm to be detected on the detection table to rotate.
5. The automated gas alarm batch verification system according to claim 4, wherein each of the gas detection channels further comprises: a negative pressure air exhaust device;
the multi-path program control signal converter is also connected with the negative pressure exhaust device and is used for controlling the opening/closing/rotating speed of the negative pressure exhaust device.
6. The automated gas alarm batch verification system according to claim 1, wherein each of the gas detection channels further comprises: mechanical and molecular pump sets;
the mechanical pump and the molecular pump set are used for evacuating the gas of the gas detection channel.
7. The automated gas alarm batch verification system of claim 3,
the outer side of the gas storage chamber for verification is provided with a drawing opening and closing door;
and a plurality of gas storage bottles are arranged in the gas storage chamber for verification, and the gas storage bottles are used for storing the gas for verification.
8. The automated gas alarm batch verification system of claim 1, further comprising: a printer;
the printer is connected with the terminal equipment;
and the terminal equipment is used for controlling the printer to print and output the comparison result.
9. The automated gas alarm batch verification system according to claim 1, wherein the terminal equipment is further configured to store the detection data of the verification gas by each gas alarm to be verified in a classified manner.
10. The batch verification system for automatic gas alarms according to claim 1, wherein the terminal device is further configured to store the comparison results corresponding to each gas alarm to be verified in a classified manner.
CN202111194247.8A 2021-10-13 2021-10-13 Automatic gas alarm batch verification system Pending CN113936444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111194247.8A CN113936444A (en) 2021-10-13 2021-10-13 Automatic gas alarm batch verification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111194247.8A CN113936444A (en) 2021-10-13 2021-10-13 Automatic gas alarm batch verification system

Publications (1)

Publication Number Publication Date
CN113936444A true CN113936444A (en) 2022-01-14

Family

ID=79278951

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111194247.8A Pending CN113936444A (en) 2021-10-13 2021-10-13 Automatic gas alarm batch verification system

Country Status (1)

Country Link
CN (1) CN113936444A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102915624A (en) * 2012-09-27 2013-02-06 淄博贝林电子有限公司 Detecting device and detecting method of fuel gas alarm
CN105572307A (en) * 2016-01-28 2016-05-11 河北先河环保科技股份有限公司 Calibration tool for gas sensors and calibration method
CN209168384U (en) * 2019-01-08 2019-07-26 烟台因卓仪表科技有限公司 The calibrating of multichannel flammable gas alarm and calibrating installation
WO2020190087A1 (en) * 2019-03-20 2020-09-24 김경용 Gas detection apparatus, detection method, and operating method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102915624A (en) * 2012-09-27 2013-02-06 淄博贝林电子有限公司 Detecting device and detecting method of fuel gas alarm
CN105572307A (en) * 2016-01-28 2016-05-11 河北先河环保科技股份有限公司 Calibration tool for gas sensors and calibration method
CN209168384U (en) * 2019-01-08 2019-07-26 烟台因卓仪表科技有限公司 The calibrating of multichannel flammable gas alarm and calibrating installation
WO2020190087A1 (en) * 2019-03-20 2020-09-24 김경용 Gas detection apparatus, detection method, and operating method

Similar Documents

Publication Publication Date Title
CN103984338B (en) Air conditioner controller automatic testing system and testing method thereof
CN108195447B (en) Flowmeter calibration system and calibration method
CN2938055Y (en) Device for detecting leakage of central air-conditioning pipeline system by differential pressure
CN101105501A (en) Fan rotary speed test system and method
CN206208451U (en) Aircraft engine test stand sine wave dynamic pressure field calibration device
CN102915624B (en) Detecting device and detecting method of fuel gas alarm
CN111308018A (en) Nitrogen-oxygen sensor calibration test system and operation method
CN109307575A (en) Rail traffic air-conditioning system airtight detecting apparatus and method
CN113936444A (en) Automatic gas alarm batch verification system
CN204630979U (en) Multisensor air chamber
JP2003254878A (en) Measurement system for exhaust gas
CN213689514U (en) Parameter monitoring and calibration system of gas detection equipment
CN100516815C (en) Automatic testing method and apparatus for performance of breathing relief valve
CN219015429U (en) Mass flowmeter calibrating device
CN103090899A (en) Test device and test method for sensor
CN102564791B (en) Pressure regulating property testing system of gas pressure regulator
CN104835300B (en) Multiple gases detect alarm automatic checkout system and method
CA2518126A1 (en) Method and apparatus for detecting a gas
CN206832535U (en) A kind of air pressure detection type air/particle sampler
CN112525152B (en) Quick response high accuracy atmospheric pressure altitude analog system
CN113310638A (en) Cabin airtightness tester control system
CN210923615U (en) Detection system of gas sensor
JP3667607B2 (en) Automotive exhaust gas measurement system
CN111238626A (en) Vane type high-frequency air pressure sensor detection device
CN110865152A (en) Gas sensor aging device for coal mine and detection method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination