CN102494743A - Small-flow automatic detection device and detection method for water meters - Google Patents
Small-flow automatic detection device and detection method for water meters Download PDFInfo
- Publication number
- CN102494743A CN102494743A CN2011104441777A CN201110444177A CN102494743A CN 102494743 A CN102494743 A CN 102494743A CN 2011104441777 A CN2011104441777 A CN 2011104441777A CN 201110444177 A CN201110444177 A CN 201110444177A CN 102494743 A CN102494743 A CN 102494743A
- Authority
- CN
- China
- Prior art keywords
- water meter
- controller
- flow
- pulse
- tested
- 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
Links
Images
Abstract
The invention discloses a device and a method for error detection under the conditions of small flows of water meters. According to the device, a computer is used for comprehensively controlling a detection process, calculating errors and managing test data; photoelectric sensors are used for converting rotating signals of plum-blossom needles of standard water meters and the tested water meters into electric square wave signals, and outputting the electric square wave signals to an input port of a controller; the controller is used for executing specific control action and data acquisition; a flow control part takes an output signal of a differential pressure flow sensor as a feedback signal of flow control; an error measurement part acquires the output signals of the photoelectric sensors of the standard water meters and the tested water meters; a decimal pulse counting method is adopted for the data acquisition; and acquired data is transmitted to the computer, and the computer calculates error values of the tested water meters according to the test data. By the device and the decimal pulse counting method, time for testing the water meters can be effectively shortened, so that water meter testing efficiency can be greatly improved, and a production bottleneck problem caused by low water meter testing speed in the batch production of the water meters can be solved.
Description
Technical field
The invention belongs to the Automatic Measurement Technique field, be specifically related to a kind of pick-up unit of water meter low discharge error.
Background technology
At present, in the testing process of water meter, mainly use the manual pick-up unit of positive displacement, mainly the water yield indicating value through relatively flowing through tested water meter and the difference error of calculation of volumetric standard.In operating process,, when the indicating value of the indicating value of water-meter reading and volumetric standard, cause personal error easily to the having relatively high expectations of operating personnel; At checking flow hour, in order to reduce personal error, the total flow that need flow through is bigger, and the time is longer, is 25 liters of/hour these flow points like checking flow, and the water yield that flows through accumulation if desired reaches 10 liters, and then checking time is 24 minutes.Automatic water meter calibration device is also arranged at present; Substitute manual read's list index data of fetching water through video camera, handle through image recognition technology, the tested water meter of each piece needs a high-resolution video camera; And the software processes difficulty is higher; If the string school, this method cost is too high, is not suitable for production in enormous quantities equipment.
Summary of the invention
The purpose of this invention is to provide a kind of real intelligent water meter pick-up unit and method, make the testing process of water meter simple, shorten the test duration, increase work efficiency, to satisfy the production in enormous quantities of water meter.
The present invention adopts following technical proposals:
A kind of water meter low discharge automatic detection device comprises computing machine, controller, differential pressure flow sensor, a plurality of photoelectric sensor, solenoid valve, standard water meter, electronic control ball valve; It is characterized in that:
Water inlet end at device is equipped with solenoid valve, and the water side is equipped with electronic control ball valve;
Differential pressure flow sensor, standard water meter and tested water meter are installed in the pipeline between solenoid valve and the electronic control ball valve successively;
The output terminal of said controller connects solenoid valve, electronic control ball valve respectively, and said controller is through solenoid control test water source opening and closing, and said controller is regulated through electronic control ball valve and is used for test water source flux size;
Said a plurality of photoelectric sensor be installed in respectively standard water meter and tested water meter directly in order to measure the flow value of said standard water meter and tested water meter; Said photoelectric sensor output terminal is connected to the input end of controller, and the flow value of measured standard water meter and tested water meter is uploaded to said controller;
The output terminal of said differential pressure flow sensor is connected to the input end of said controller, and the flow value of the measured standard that flows through water meter and tested water meter is uploaded to said controller;
Said computing machine connects controller through bus; Computing machine to said controller transmitted traffic control, error testing order; Receive the measured standard that the flows through water meter of measured standard water meter of command response and said a plurality of photoelectric sensor of controller and tested flow value and differential pressure flow sensor and the flow value of tested water meter, calculate the error of tested water meter.
Water meter low discharge automatic detection device based on above-mentioned the invention also discloses a kind of detection method, it is characterized in that, said method comprising the steps of:
The first step, computing machine is to controller sending flow rate control command;
Second step, through the controller opens solenoid valve, control electronic control ball valve, make the flow size that flows through standard water meter and tested water meter reach setting value;
In the 3rd step, computing machine issues the error testing order to said controller after receiving replying that the flow control of controller accomplishes, and said controller remains the control to flow;
In the 4th step, controller is gathered the pulse signal of the photoelectric sensor of standard water meter and tested water meter according to the time parameter of test command, and calculates the decimal pulse, and pulse data is sent to computing machine; The computing method of said decimal pulse are the quantity of the length of the imperfect pulse of initiating terminal and end when counting through acquisition pulse, total complete pulse, the total length of complete pulse; Calculate the average length of complete pulse; Calculate the ratio of imperfect pulse length of initiating terminal and end and average length then respectively, thereby calculate the fraction part of umber of pulse;
In the 5th step, computing machine calculates the error of every tested water meter according to the pulse data of passback, preserves database.
The decimal pulse computing method of this device and employing thereof can make the test duration of water meter effectively shorten, thereby significantly improve the water meter testing efficiency, solve the production bottleneck problem that the water meter detection speed brings slowly in the water meter production in enormous quantities.
Description of drawings
Accompanying drawing 2 is the application's water meter low discharge automatic detection device theory diagram;
Accompanying drawing 3 is the application's automatic testing method schematic flow sheet;
Accompanying drawing 4 is that the medium and small rapid pulse of the application embodiment dashes the calculating synoptic diagram.
Wherein, 1 is computing machine, and 2 is controller, and 2-1 is the controller flow-control module, and 2-2 is the controller error measurement module, and 3 is solenoid valve, and 4 is the laser photoelectricity sensor, and 5 is the standard water meter, and 6 is tested water meter, and 7 is electronic control ball valve, 8 differential pressure flow sensors.
Embodiment
Below in conjunction with Figure of description technical scheme of the present invention is explained further details.
The application's water meter low discharge automatic detection device structural representation as shown in Figure 1; A kind of intelligentized water meter pick-up unit; Entire equipment comprises computing machine 1, controller 2, solenoid valve 3, photoelectric sensor 4, standard scale 5, electronic control ball valve 7, differential pressure flow sensor 8, and tested water meter 6.
Described computing machine 1 is used to move TT&C software; The management testing step; With communicate by letter through RS232 between the controller, order and corresponding parameters such as sending flow rate control, error testing receive command response and test data that controller 2 is uploaded; And go out the error of tested water meter according to the calculation of parameter of test data and setting, realize the management and the networking of test data; Described controller 2 is used for communicating by letter with TT&C software; Control electromagnetic valve 3; Control electronic control ball valve 7, gather the output signal of differential pressure flow sensor 8, the pulse data of photoelectric sensor 4 outputs; And the early stage of the photoelectric sensor data of gathering handle etc., used the computing method of decimal pulse during data processing; Described solenoid valve 3 is used to test the control of water source opening and closing; Described electronic control ball valve 7 is used for the adjusting of test traffic size, makes the scope that reaches water meter test procedure regulation through the flow size of standard water meter and tested water meter.Described photoelectric sensor 4 is used for converting the turn signal of the cutaneous acupuncture of standard water meter and tested water meter into controller treatable electric impulse signal.Described standard scale (5) is used for the benchmark of tested water meter Error Calculation.It is controller 2 treatable electric signal that described differential pressure flow sensor 8 is used for the flow size conversion that flows through standard water meter and tested water meter.
Be illustrated in figure 2 as the application's water meter low discharge automatic detection device theory diagram, comprise computing machine 1, effect as previously mentioned; Concrete action is carried out in the order that controller 2, receiving computer issue, and comprises flow-control module 2-1 and error measure module 2-2; Wherein, flow-control module 2-1 is responsible for and computing machine 1 communication; Control electromagnetic valve 3 realizes the unlatching at water meter test water source or closes; Flow-control module 2-1 gathers the measured standard that the flows through water meter of differential pressure flow sensor 8 and the flow of tested water meter; According to the controlled variable in the flow control order; The size of the opening degree through the electronic control ball valve 7 of PID calculation control; Realize the automatic adjusting of flow size, make the flow size that flows through standard water meter and tested water meter reach the flow magnitude range of water meter test procedure regulation; Be responsible for the communication with error measure module 2-2 simultaneously, transmit the order that module 2-2 such as error measure order needs, and the data forwarding that need send to computing machine 1 to module 2-2 be to computing machine 1.Error measure module 2-2 is according to error testing order and test duration parameter; In official hour, accomplish the collection of photoelectric sensor 4 output umber of pulses; Calculate the decimal umber of pulse, arrive computing machine to the decimal pulse transmission of the standard water meter of test and tested water meter through module 2-1; Differential pressure flow sensor 8 converts flow signal into controller 2 treatable electric signal.
As shown in Figure 3, a complete test process comprises following five steps: the first step, computing machine 1 sending flow rate control command; In second step, module 2-1 opens solenoid valve 3 in the controller 2, controls electronic control ball valve 7, makes the flow size that flows through standard water meter and tested water meter reach setting value; In the 3rd step, computing machine issues the error testing order after receiving replying that the flow control of controller 2 accomplishes, and module 2-1 is forwarded to module 2-2 to the error testing order, and module 2-1 remains the control to flow simultaneously; In the 4th step, the module 2-2 of controller 2 gathers the pulse signal of the photoelectric sensor of standard water meter and tested water meter according to the time parameter of test command, and calculates the decimal pulse, and 2-1 sends to computing machine to data through module; In the 5th step, computing machine calculates the error of every tested water meter according to the pulse data of passback, preserves database.So far, a complete test is accomplished.
Wherein, the flow size is controlled automatically and is specified as follows:
In the control procedure of flow, adopt the PID control technology.The conduct of PID (PID) controller is existing more than 50 year history of controller of practicability the earliest, remains most widely used industrial control unit (ICU) now.The PID controller is easily understood, and does not need condition precedents such as accurate system model in the use, thereby becomes application controller the most widely.PID control is divided into position model PID and increment type PID (concrete PID control is referring to PID control system related data).Native system adopts position model PID to control, and computing formula is simple, is fit to handle with single-chip microcomputer, and its computing formula is:
Wherein: Kp is a scale-up factor, and Ki is an integral coefficient, and Kd is a differential coefficient
Differential flowmeter is a kind of instrument of measuring flow.It is the principle that has certain relation between the pressure differential that produced when utilizing fluid to flow through restriction device and the flow, realizes flow measurement through measuring pressure reduction.Controller 2 is gathered the output signal of differential flowmeter, calculates through PID, controls the unlatching size of electronic control ball valve 7, thereby realizes the automatic adjusting of flow size.
The error testing of tested table specifies as follows:
In the table tool string school, the water yield that in the identical time, flows through the table tool is identical, writes down the reading of every table tool respectively, obtains the indicating value of every table tool.If wherein the error amount of a table tool is known, just can obtain the water yield of reality through its error correction, the error of residue table tool can be through calculating, i.e. the standard scale relative method.
In the water meter, cutaneous acupuncture rotates a circle and represents a fixing water yield, simultaneously, exports fixing umber of pulse (scale according to cutaneous acupuncture is confirmed) through photoelectric sensor, i.e. the certain water yield of each pulse representative.Can obtain showing the indicating value flow of tool through the umber of pulse of calculating photoelectric sensor output, through calculating the error that can obtain tested table.
In the test,, must guarantee that the umber of pulse sum is enough big if in order to reduce the influence of individual pulse.As, ading up to 1000, one of the error of umber of pulse, its error are 0.1%; If add up to 300, the error of umber of pulse is 0.3, i.e. 1/3 pulse, and its error is similarly 0.1%.So under the situation that guarantees certain measuring accuracy, adopted decimal pulse Calculation Method, can effectively reduce the test duration.As, the DN15 water meter is under the 2500L/h at flow commonly used, Measuring Time can shorten to actual 10 seconds of test duration by 2.4 minutes (100L water, volumetric method test).
Wherein, the detailed method of decimal pulse calculating is following:
As shown in Figure 4 is the pulse synoptic diagram that is formed by the standard scale of photoelectric sensor output and the cutaneous acupuncture rotation of two tested water meters wherein.Handle this three road signal by the microcontroller capture channel, obtain the total umber of pulse of every road pulse, the periodic quantity of each pulse obtains each required among figure time value simultaneously.
Wherein, obtain the decimal umber of pulse through following method:
The time point of A point for beginning to measure among the figure, the B point is for finishing the Measuring Time point.The time span of t1, t3, the initial imperfect pulse of the moment of t7 wherein; T2, t4, t8 are the time span of the imperfect pulse finish time; T5, t6, t9 are the T.T. length of complete pulse, and its corresponding pulse adds up to m, n, the calculating of the umber of pulse of k mixed decimal, difference t1+t2 writing time, t3+t4, t7+t8, t5, t6, t9;
The umber of pulse of the mixed decimal of tested table 1 is: m+ (t1+t2)/(t5/m)
The umber of pulse of the mixed decimal of tested table 2 is: n+ (t3+t4)/(t6/n)
The umber of pulse of the mixed decimal of standard scale is: k+ (t7+t8)/(t9/k).
Claims (7)
1. a water meter low discharge automatic detection device comprises computing machine, controller, differential pressure flow sensor, a plurality of photoelectric sensor, solenoid valve, standard water meter, electronic control ball valve; It is characterized in that:
Water inlet end at device is equipped with solenoid valve, and the water side is equipped with electronic control ball valve;
Differential pressure flow sensor, standard water meter and tested water meter are installed in the pipeline between solenoid valve and the electronic control ball valve successively;
The output terminal of said controller connects solenoid valve, electronic control ball valve respectively, and said controller is through solenoid control test water source opening and closing, and said controller is regulated through electronic control ball valve and is used for test water source flux size;
Said a plurality of photoelectric sensor be installed in respectively standard water meter and tested water meter directly in order to measure the flow value of said standard water meter and tested water meter; Said photoelectric sensor output terminal is connected to the input end of controller, and the flow value of measured standard water meter and tested water meter is uploaded to said controller;
The output terminal of said differential pressure flow sensor is connected to the input end of said controller, and the flow value of the measured standard that flows through water meter and tested water meter is uploaded to said controller;
Said computing machine connects controller through bus; Computing machine to said controller transmitted traffic control, error testing order; Receive the measured standard that the flows through water meter of measured standard water meter of command response and said a plurality of photoelectric sensor of controller and tested flow value and differential pressure flow sensor and the flow value of tested water meter, calculate the error of tested water meter.
2. water meter low discharge automatic detection device according to claim 1 is characterized in that:
Said controller is controlled electronic control ball valve, by the flow control order that computing machine issues the test water source flux size that flows through is controlled automatically, makes flow value satisfy the regulation of water meter calibration rules.
3. according to claim or 2 described water meter low discharge automatic detection devices, it is characterized in that:
Said controller comprises flow-control module and error measure module, and wherein said flow-control module is used to control electronic control ball valve and solenoid valve, and said error measure module receives the measurement data of a plurality of photoelectric sensors.
4. water meter low discharge automatic detection device according to claim 3 is characterized in that:
Said flow-control module receives the measured standard that the flows through water meter of differential pressure flow sensor and the flow value of tested water meter; Flow feedback signal when regulating automatically as flow; And according to the controlled variable in the flow control order; The size of the opening degree through the electronic control ball valve of PID calculation control realizes the automatic adjusting of flow size.
5. water meter low discharge automatic detection device according to claim 1 is characterized in that:
Described photoelectric sensor is used for converting the turn signal of the cutaneous acupuncture of standard water meter and tested water meter into controller treatable electric impulse signal.
6. water meter low discharge automatic detection device according to claim 5 is characterized in that:
When said controller is gathered standard water meter and tested water meter photoelectric sensor output umber of pulse, make pulse counting method decimally.
7. the water meter detection method based on the described water meter low discharge of claim 1-6 automatic detection device is characterized in that, said method comprising the steps of:
The first step, computing machine is to controller sending flow rate control command;
Second step, through the controller opens solenoid valve, control electronic control ball valve, make the flow size that flows through standard water meter and tested water meter reach setting value;
In the 3rd step, computing machine issues the error testing order to said controller after receiving replying that the flow control of controller accomplishes, and said controller remains the control to flow;
In the 4th step, controller is gathered the pulse signal of the photoelectric sensor of standard water meter and tested water meter according to the time parameter of test command, and calculates the decimal pulse, and pulse data is sent to computing machine; The computing method of said decimal pulse are the quantity of the length of the imperfect pulse of initiating terminal and end when counting through acquisition pulse, total complete pulse, the total length of complete pulse; Calculate the average length of complete pulse; Calculate the ratio of imperfect pulse length of initiating terminal and end and average length then respectively, thereby calculate the fraction part of umber of pulse;
In the 5th step, computing machine calculates the error of every tested water meter according to the pulse data of passback, preserves database.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104441777A CN102494743A (en) | 2011-12-27 | 2011-12-27 | Small-flow automatic detection device and detection method for water meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104441777A CN102494743A (en) | 2011-12-27 | 2011-12-27 | Small-flow automatic detection device and detection method for water meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102494743A true CN102494743A (en) | 2012-06-13 |
Family
ID=46186587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104441777A Pending CN102494743A (en) | 2011-12-27 | 2011-12-27 | Small-flow automatic detection device and detection method for water meters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102494743A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052812A (en) * | 2016-08-15 | 2016-10-26 | 安徽翼迈科技股份有限公司 | Watermeter detection equipment |
| CN106052805A (en) * | 2016-07-19 | 2016-10-26 | 天津市炳华节能技术有限公司 | Electromechanical synchronization detection system for mechanical remote water meter |
| CN106643994A (en) * | 2017-02-13 | 2017-05-10 | 江苏金钰铭电子有限公司 | Meter measuring system for measuring friction of water meter cores |
| CN110231074A (en) * | 2019-07-08 | 2019-09-13 | 无锡水表有限责任公司 | A kind of method of quick detection water meter error |
| CN112763028A (en) * | 2020-12-23 | 2021-05-07 | 宁波泽联科技有限公司 | Intelligent meter calibration system and method for ultrasonic water meter |
| CN113639832A (en) * | 2021-08-12 | 2021-11-12 | 宁波水表(集团)股份有限公司 | Method and system for detecting influence factors of water meter metering precision |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729662Y (en) * | 2004-06-16 | 2005-09-28 | 余晓冬 | Serial-type dynamic automatic detector for watermeter |
| CN2767974Y (en) * | 2004-12-17 | 2006-03-29 | 张祖明 | Microcomputer controlled water meter calibrating apparatus |
| CN101408452A (en) * | 2008-11-27 | 2009-04-15 | 浙江大学 | Full-automatic water meter production inspecting method |
| CN101893464A (en) * | 2010-06-23 | 2010-11-24 | 宁波明泰流量设备有限公司 | High-precision and fast pulse metering device and method thereof |
| CN202511852U (en) * | 2011-12-27 | 2012-10-31 | 重庆市智能水表有限责任公司 | Water meter small flow automatic checkout device |
-
2011
- 2011-12-27 CN CN2011104441777A patent/CN102494743A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729662Y (en) * | 2004-06-16 | 2005-09-28 | 余晓冬 | Serial-type dynamic automatic detector for watermeter |
| CN2767974Y (en) * | 2004-12-17 | 2006-03-29 | 张祖明 | Microcomputer controlled water meter calibrating apparatus |
| CN101408452A (en) * | 2008-11-27 | 2009-04-15 | 浙江大学 | Full-automatic water meter production inspecting method |
| CN101893464A (en) * | 2010-06-23 | 2010-11-24 | 宁波明泰流量设备有限公司 | High-precision and fast pulse metering device and method thereof |
| CN202511852U (en) * | 2011-12-27 | 2012-10-31 | 重庆市智能水表有限责任公司 | Water meter small flow automatic checkout device |
Non-Patent Citations (1)
| Title |
|---|
| 黄宗升: "《四频激光陀螺脉冲细分技术》", 《激光杂质》, vol. 28, no. 3, 15 June 2007 (2007-06-15), pages 33 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052805A (en) * | 2016-07-19 | 2016-10-26 | 天津市炳华节能技术有限公司 | Electromechanical synchronization detection system for mechanical remote water meter |
| CN106052812A (en) * | 2016-08-15 | 2016-10-26 | 安徽翼迈科技股份有限公司 | Watermeter detection equipment |
| CN106643994A (en) * | 2017-02-13 | 2017-05-10 | 江苏金钰铭电子有限公司 | Meter measuring system for measuring friction of water meter cores |
| CN110231074A (en) * | 2019-07-08 | 2019-09-13 | 无锡水表有限责任公司 | A kind of method of quick detection water meter error |
| CN110231074B (en) * | 2019-07-08 | 2021-11-30 | 无锡水表有限责任公司 | Method for rapidly detecting error of water meter |
| CN112763028A (en) * | 2020-12-23 | 2021-05-07 | 宁波泽联科技有限公司 | Intelligent meter calibration system and method for ultrasonic water meter |
| CN113639832A (en) * | 2021-08-12 | 2021-11-12 | 宁波水表(集团)股份有限公司 | Method and system for detecting influence factors of water meter metering precision |
| CN113639832B (en) * | 2021-08-12 | 2024-02-13 | 宁波水表(集团)股份有限公司 | Detection method and monitoring system for water meter measurement accuracy influence factors |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102494743A (en) | Small-flow automatic detection device and detection method for water meters | |
| CN102621032B (en) | Automatic tester for gas content in coal gas | |
| CN103499373B (en) | Be with self-alignment automatic capacity calibration device for tank truck and method | |
| CN102538914B (en) | Electronic water meter with correction function | |
| CN104964719A (en) | Household electronic water meter flow metering method based on BP neural network | |
| CN202547738U (en) | Automatic high-performance flow calibration system | |
| CN107300404A (en) | Natural gas flowmeter verification system | |
| CN209743128U (en) | Automatic testing device for improving testing precision of water pump | |
| CN104267199B (en) | Shale gas content assaying method and Analytical system | |
| CN202511851U (en) | Automatic detection device for large flow of water meter | |
| CN102506964A (en) | Liquid reservoir automatic calibration device and calibration method | |
| CN201497548U (en) | On-line verification system of water meter | |
| CN202247792U (en) | Gate for measuring flow quantity through flow velocity | |
| CN202614292U (en) | Intelligent fluid flow meter | |
| CN202511852U (en) | Water meter small flow automatic checkout device | |
| CN103175582B (en) | Fluid metering method and apparatus | |
| CN202210005U (en) | Heat energy meter flow full-automatic detection device | |
| CN201464003U (en) | Rotor flow meter calibrating device | |
| CN1687718A (en) | Method for calibrating flow meter and applied system for calibrating flow meter | |
| CN102494744A (en) | Large-flow automatic detection device and detection method for water meters | |
| CN105890713A (en) | Flowmeter calibration system | |
| CN102566549A (en) | Oil distributing control system | |
| CN201707783U (en) | Automatic data acquisition system of concrete cooling through water | |
| CN106444931A (en) | A white spirit alcoholic strength on-line monitoring method and a monitoring device | |
| CN210033413U (en) | Single well metering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120613 |