CN103247157A - Electric quantity data wireless acquisition device and electric quantity data acquisition system - Google Patents

Electric quantity data wireless acquisition device and electric quantity data acquisition system Download PDF

Info

Publication number
CN103247157A
CN103247157A CN 201210030450 CN201210030450A CN103247157A CN 103247157 A CN103247157 A CN 103247157A CN 201210030450 CN201210030450 CN 201210030450 CN 201210030450 A CN201210030450 A CN 201210030450A CN 103247157 A CN103247157 A CN 103247157A
Authority
CN
China
Prior art keywords
electric quantity
quantity data
wireless
acquisition device
information
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
CN 201210030450
Other languages
Chinese (zh)
Inventor
林芳
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.)
BEIJING CHENGLI TECHNOLOGY Co Ltd
Original Assignee
BEIJING CHENGLI TECHNOLOGY Co Ltd
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 BEIJING CHENGLI TECHNOLOGY Co Ltd filed Critical BEIJING CHENGLI TECHNOLOGY Co Ltd
Priority to CN 201210030450 priority Critical patent/CN103247157A/en
Publication of CN103247157A publication Critical patent/CN103247157A/en
Pending legal-status Critical Current

Links

Images

Abstract

The present invention discloses an electric quantity data wireless acquisition device and an electric quantity data acquisition system. The device comprises: a microprocessor control module and a radio frequency module. The microprocessor control module is used for acquiring electric quantity data in an electric energy meter via an interface module, and packaging the acquired electric quantity data according to a radio protocol to obtain the packaged information. The packaged information also carries SIM card identification of the electric quantity data wireless acquisition device. The radio frequency module is used for sending the electric quantity data packaged by the microprocessor control module to a master station control system. Because the electric quantity data wireless acquisition device can directly send the electric quantity data to the master station control system wirelessly after acquiring the electric quantity data, the data is not sent to the master station control system via a concentrator, the concentrator and wiring work between the concentrator and an electric energy acquisition device can be omitted, the system structure is greatly simplified, and the installation work of system installation personnel is facilitated.

Description

Electric quantity data wireless acquisition device and electric quantity data acquisition system
Technical field
The present invention relates to the electric power data acquisition technology, particularly relate to the technology that realizes electric power data acquisition by wireless acquisition device.
Background technology
In recent years along with the high speed development of Chinese national economy, the grow at top speed power industry of basic power has also obtained fairly large development as national economy.Electric energy has penetrated into the various aspects of commercial production and daily life as the indispensable universal energy resource form of modern industrial society.Safe, stable, the economy of electric system, reliability service are related to also that enterprise produces and electricity consumption and the interests of people's life.
How to make stabilization of power grids safe operation, allow electric power resource better be social economy's service, precondition is the operation conditions of control electrical network that can be promptly and accurately, monitor operation states of electric power system timely and accurately, and in conjunction with the advanced communication technology data are transferred to control system in time, exactly, realize that electric power system data promptly and accurately gathers the purpose of transmission thereby reach.
At present, the power consuming administrative system of prior art mainly is made up of electric energy meter 101, electric energy acquisition device 102, concentrator 103, main website control system 104 as shown in Figure 1.
Electric energy acquisition device 102 is finished the electric quantity data acquisition work of ammeter, and and concentrator 103 between carry out data communication, the electric quantity data that needs transmit is delivered to concentrator 103.
Concentrator 103 is finished the data communication with electric energy acquisition device 102, and regularly circulation receives the electric quantity data of electric energy acquisition device 102, or receives the data of certain electric energy meter or certain group electric energy meter according to the order of main website control system 104.Concentrator 103 communicates with main website control system 104, and the electric quantity data of each electric energy meter 101 that will receive from electric energy acquisition device 102 is sent to the main website control system 104.
Main website control system 104 regularly or send the order of the electric quantity data of copying and accepting resident or trade company's electric energy meter at any time to concentrator 103 and receives the electric quantity data of the electric energy meter 101 that concentrator 103 returns according to this order.In addition, main website control system 104 can also arrange messaging parameter and operating parameter to concentrator, after the networking of power supply administration electricity consumption business net, can carry out functions such as electricity charge calculating, bill printing, statistical report form, the real receipts of the electricity charge.
Communication line between concentrator 103 and main website control system 104 can adopt communication medias such as telephone wire, wireless GPRS, special line.
And the communication line between concentrator 103 and the electric energy acquisition device 102 mainly connects by twisted-pair feeder or power carrier mode with the RS-485 interface standard.
The present inventor finds the system hardware framework more complicated of available technology adopting electric energy acquisition device and concentrator, there is restriction in the mode mounting distance that communicating by letter between concentrator and the electric energy acquisition device adopted RS-485, and line construction installation work amount big, be subject to artificial destruction; After circuit damaged, the trouble spot is easy-to-search not.
Summary of the invention
According to an aspect of the present invention, provide a kind of electric quantity data wireless acquisition device, in order to realize the wireless collection electric quantity data, avoided installing line construction installation works a large amount of in the electric quantity data acquisition systematic procedure, saved manpower, improved installation effectiveness.
A kind of electric quantity data wireless acquisition device of the present invention comprises: interface module links to each other with electric energy meter; Little processing and control module is for the electric quantity data that obtains described electric energy meter by described interface module; And the electric quantity data that obtains encapsulated according to wireless protocols, the information after obtaining encapsulating also carries the SIM card sign of described electric quantity data wireless acquisition device in the information after the described encapsulation; Wireless radio frequency modules is used for the electric quantity data after described little processing and control module encapsulation is wirelessly transmitted to the main website control system.
Wherein, described little processing and control module can be further used for: receive the data acquisition command information that described main website control system sends by described wireless radio frequency modules, and after the take over party's who confirms this data acquisition command information SIM card is designated the SIM card sign of this electric quantity data wireless acquisition device, according to the data acquisition command that from described data acquisition command information, parses, obtain electric quantity data in the described electric energy meter by described interface module; And after the electric quantity data that obtains encapsulated according to wireless protocols, send to described main website control system by described wireless radio frequency modules.
Wherein, described device also comprises: memory module is used for the electric quantity data that the described little processing and control module of storage is obtained from described electric energy meter.
Described device also comprises: power module is used to described little processing and control module, interface module, memory module, wireless radio frequency modules that direct supply is provided.
Described wireless protocols is GPRS agreement or gsm protocol.
Described interface module is specially the serial interface module.
According to another aspect of the present invention, provide a kind of electric quantity data acquisition system, it can realize the wireless collection electric quantity data, avoids installing line construction installation works a large amount of in the electric quantity data acquisition systematic procedure, saves manpower, improves installation effectiveness.
A kind of electric quantity data acquisition of the present invention system comprises: the electric quantity data wireless acquisition device is used for obtaining the electric quantity data of electric energy meter; And the electric quantity data that obtains encapsulated the information after obtaining encapsulating according to wireless protocols; Information after the encapsulation is carried out wireless transmission; Also carry the SIM card sign of described electric quantity data wireless acquisition device in the information after the described encapsulation; The main website control system be used for to receive the information that described electric quantity data wireless acquisition device sends, and resolves the information that receives according to wireless protocols, obtain the SIM card sign and electric quantity data of described electric quantity data wireless acquisition device after, carry out corresponding record.
Wherein, described main website control system can be further used for: send data acquisition command information;
Correspondingly, described electric quantity data wireless acquisition device also is used for receiving the data acquisition command information that described main website control system sends, and after the take over party's who confirms this data acquisition command information SIM card is designated the SIM card sign of this electric quantity data wireless acquisition device, data acquisition command according to parsing from described data acquisition command information obtains the electric quantity data in the electric energy meter; And after the electric quantity data that obtains encapsulated according to wireless protocols, send to described main website control system.
The electric quantity data wireless acquisition device of the embodiment of the invention can be after having gathered electric quantity data, directly electric quantity data is wirelessly sent to the main website control system, do not need to send to the main website control system again by concentrator, saved concentrator, and the installation work between concentrator and the electric energy acquisition device, simplify the structure of system greatly, made things convenient for the installment work of system's installation personnel.And in the maintenance work in later stage, do not have that circuit damages yet, the trouble spot problem of easy-to-search not.
Description of drawings
Fig. 1 is the power consuming administrative system synoptic diagram of prior art;
Fig. 2 is the electric quantity data acquisition system schematic of the embodiment of the invention;
Fig. 3 is the electric quantity data wireless acquisition device structured flowchart of the embodiment of the invention.
Embodiment
The electric quantity data acquisition system that the embodiment of the invention provides as shown in Figure 2, comprising: electric quantity data wireless acquisition device 201 and main website control system 202.Electric quantity data wireless acquisition device 201 has merged the function of concentrator and electric energy acquisition device, and realizes by carrying out radio communication between GPRS (General Packet Radio Service, general packet radio service technology) and the main website control system 202.Adopt electric quantity data acquisition of the present invention system, can save the installation work between concentrator and the electric energy acquisition device, simplified the structure of system greatly, make things convenient for the installment work of system's installation personnel, also be convenient to the maintenance work in later stage.
Fig. 3 shows a kind of inner structure synoptic diagram of electric quantity data wireless acquisition device 201.Wherein, comprising: little processing and control module 301, memory module 302, wireless radio frequency modules 303, interface module 304, power module (not shown).Each functions of modules is as follows:
Comprise AC/DC modular converter (AC/DC modular converter) in the power module, be used for the 220V alternating current is transferred to the direct supply of 4V, 5V, supply with each module in the electric quantity data wireless acquisition device 201.
Little processing and control module 301 mainly comprises cpu chip, realizes the control function.Interface module 304 links to each other with electric energy meter, gathers the electric quantity data in the electric energy meter.Interface module 304 also links to each other with little processing and control module 301, and little processing and control module 301 is obtained electric quantity data in the electric energy meter by interface module 304.
Interface module 304 specifically can be the interface module of RS485 serial communication protocol standard, and the rs 232 serial interface signal of the CPU of little processing and control module 301 is converted to the 5V level, and through light-coupled isolation, link to each other with the RS485 serial ports of electric energy meter.Perhaps, interface module 304 can also be the interface module of TTL, CMOS standard.
Memory module 302 links to each other with little processing and control module 301, and little processing and control module 301 will store in the memory module 302 by the electric quantity data that interface module 304 is obtained.
Memory module 302 can comprise RAM (Random Access Memory, random access memory), Flash or SDRAM (Synchronous Dynamic Random Access Memory, synchronous DRAM), and local storage function is provided.
Wireless radio frequency modules 303 transmitting-receivings meet the information of wireless protocol standard, GSM (Global System of Mobile communication for example, global system for mobile communications), the information of GPRS, CDMA (Code Division Multiple Access, CDMA) consensus standard.Include SIM (SubscriberIdentity Module, client identification module) card in the wireless radio frequency modules 303, SIM card sign (be SIM card number) is in order to the unique distinguishing mark as this electric quantity data wireless acquisition device.Little processing and control module 301 is encapsulated as electric quantity data the information that meets GSM, GPRS or CDMA consensus standard, and take over party's SIM card of determining the information after this encapsulation number is the SIM card number of main website control system 202, and the information after little processing and control module 301 will encapsulate by wireless radio frequency modules 303 sends.This SIM card can be the SIM card of electric weight special use.
Main website control system 202 is after the information that receives wireless radio frequency modules 303 transmissions, according to wireless protocols, as GSM, GPRS or CDMA agreement, resolving information, obtain the electric quantity data in the information, and number to distinguish out according to the SIM card of carrying in the information be the electric quantity data which electric quantity data wireless acquisition device sends.
Can also comprise USB (Universal Serial BUS, USB (universal serial bus)) interface module in the electric quantity data wireless acquisition device 201, little processing and control module 301 links to each other, and is used for being connected with computer, is the interface of software field upgrade or debugging.
Can also comprise button in the electric quantity data wireless acquisition device 201, link to each other with little processing and control module 301, in order to reset operation to be provided, perhaps other button indication information.
Can also comprise LED (Light Emitting Diode, light emitting diode) pilot lamp in the electric quantity data wireless acquisition device 201.For example, pilot lamp extinguishes, the expression shutdown; Pilot lamp Chang Liang, expression is not registered to GPRS network; Pilot lamp dodges (bright 0.2 second, put out 2 seconds) slowly, and expression is registered to network; Pilot lamp quickflashing (bright 0.2 second, put out 0.6 second) is during expression communication is carried out; Pilot lamp quick-flashing light (bright 0.1 second, put out 0.2 second), the indication equipment fault.
LCDs be can also comprise in the electric quantity data wireless acquisition device 201, the state of this electric quantity data wireless acquisition device or data message etc. shown.
Concrete, above-mentioned electric quantity data wireless acquisition device 201 and main website control system 202 can have two kinds of working methods:
A kind of working method be electric quantity data wireless acquisition device 201 unidirectional, regularly report the mode of electric quantity data: the little processing and control module 301 in the electric quantity data wireless acquisition device 201 is every the setting-up time section, for example 1 hour, perhaps 1 week, perhaps 1 month, by obtain the electric quantity data in the electric energy meter by interface module 304.Little processing and control module 301 encapsulates according to wireless protocols electric quantity data after having obtained the electric quantity data in the electric energy meter, sends by wireless radio frequency modules 303 again.Main website control system 202 is after the information that receives wireless radio frequency modules 303 transmissions, according to the wireless protocols resolving information, obtain the electric quantity data in the information, and number to determine according to the SIM card of carrying in the information be the electric quantity data which electric quantity data wireless acquisition device sends, thus the SIM card of the electric quantity data wireless acquisition device that carries in the corresponding record information number and electric quantity data.
Another kind of working method is initiatively query modes of main website control system 202: the data acquisition command information that main website control system 202 sends by the wireless protocols encapsulation, the take over party's of this data acquisition command information SIM card number are the SIM card number of certain electric quantity data wireless acquisition device 201.Electric quantity data wireless acquisition device 201 is resolved by the data acquisition command information that wireless radio frequency modules 303 receives 202 transmissions of main website control system, and after number being the SIM card number of this electric quantity data wireless acquisition device 201 in the SIM card of confirming this data acquisition command receiving party, carry out electric quantity data acquisition according to the data acquisition command that parses: the little processing and control module 301 in the electric quantity data wireless acquisition device 201 is by obtaining the electric quantity data in the electric energy meter by interface module 304, and electric quantity data encapsulated according to wireless protocols, the electric quantity data after will encapsulating by wireless radio frequency modules 303 again sends to main website control system 202.Main website control system 202 is after the information that receives wireless radio frequency modules 303 transmissions, according to the wireless protocols resolving information, obtain the electric quantity data in the information, and number to determine according to the SIM card of carrying in the information be the electric quantity data which electric quantity data wireless acquisition device sends, thus the SIM card of the electric quantity data wireless acquisition device that carries in the corresponding record information number and electric quantity data.
Main website control system 202 is by any mode in above-mentioned two kinds of working methods, obtain the electric quantity data that each electric quantity data wireless acquisition device sends, after recording respectively, can carry out functions such as electricity charge calculating, bill printing, statistical report form, the real receipts of the electricity charge.
The electric quantity data wireless acquisition device of the embodiment of the invention can be after having gathered electric quantity data, directly electric quantity data is wirelessly sent to the main website control system, do not need to send to the main website control system again by concentrator, saved concentrator, and the installation work between concentrator and the electric energy acquisition device, simplify the structure of system greatly, made things convenient for the installment work of system's installation personnel.And in the maintenance work in later stage, do not have that circuit damages yet, the trouble spot problem of easy-to-search not.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to instruct relevant hardware to finish by program, this program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (8)

1. electric quantity data wireless acquisition device comprises:
Interface module links to each other with electric energy meter;
Little processing and control module is for the electric quantity data that obtains described electric energy meter by described interface module; And the electric quantity data that obtains encapsulated according to wireless protocols, the information after obtaining encapsulating also carries the SIM card sign of described electric quantity data wireless acquisition device in the information after the described encapsulation;
Wireless radio frequency modules is used for the electric quantity data after described little processing and control module encapsulation is wirelessly transmitted to the main website control system.
2. device as claimed in claim 1 is characterized in that,
Described little processing and control module also is used for receiving the data acquisition command information that described main website control system sends by described wireless radio frequency modules, and after the take over party's who confirms this data acquisition command information SIM card is designated the SIM card sign of this electric quantity data wireless acquisition device, according to the data acquisition command that from described data acquisition command information, parses, obtain electric quantity data in the described electric energy meter by described interface module; And after the electric quantity data that obtains encapsulated according to wireless protocols, send to described main website control system by described wireless radio frequency modules.
3. device as claimed in claim 2 is characterized in that, also comprises:
Memory module is used for the electric quantity data that the described little processing and control module of storage is obtained from described electric energy meter.
4. device as claimed in claim 3 is characterized in that, also comprises:
Power module is used to described little processing and control module, interface module, memory module, wireless radio frequency modules that direct supply is provided.
5. as the described device of claim 1-4, it is characterized in that described wireless protocols is GPRS agreement or gsm protocol.
6. as the described device of claim 1-4, it is characterized in that described interface module is specially the serial interface module.
7. electric quantity data acquisition system comprises:
The electric quantity data wireless acquisition device is for the electric quantity data that obtains electric energy meter; And the electric quantity data that obtains encapsulated the information after obtaining encapsulating according to wireless protocols; Information after the encapsulation is carried out wireless transmission; Also carry the SIM card sign of described electric quantity data wireless acquisition device in the information after the described encapsulation;
The main website control system be used for to receive the information that described electric quantity data wireless acquisition device sends, and resolves the information that receives according to wireless protocols, obtain the SIM card sign and electric quantity data of described electric quantity data wireless acquisition device after, carry out corresponding record.
8. system as claimed in claim 7 is characterized in that,
Described main website control system also is used for sending data acquisition command information; And
Described electric quantity data wireless acquisition device also is used for receiving the data acquisition command information that described main website control system sends, and after the take over party's who confirms this data acquisition command information SIM card is designated the SIM card sign of this electric quantity data wireless acquisition device, data acquisition command according to parsing from described data acquisition command information obtains the electric quantity data in the electric energy meter; And after the electric quantity data that obtains encapsulated according to wireless protocols, send to described main website control system.
CN 201210030450 2012-02-10 2012-02-10 Electric quantity data wireless acquisition device and electric quantity data acquisition system Pending CN103247157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210030450 CN103247157A (en) 2012-02-10 2012-02-10 Electric quantity data wireless acquisition device and electric quantity data acquisition system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210030450 CN103247157A (en) 2012-02-10 2012-02-10 Electric quantity data wireless acquisition device and electric quantity data acquisition system

Publications (1)

Publication Number Publication Date
CN103247157A true CN103247157A (en) 2013-08-14

Family

ID=48926655

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201210030450 Pending CN103247157A (en) 2012-02-10 2012-02-10 Electric quantity data wireless acquisition device and electric quantity data acquisition system

Country Status (1)

Country Link
CN (1) CN103247157A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104391143A (en) * 2014-11-20 2015-03-04 成都华瑞祥电器成套设备有限公司 Smart electric meter measuring box system
CN104464251A (en) * 2014-12-29 2015-03-25 国家电网公司 Energy meter data and information collecting system
CN104735100A (en) * 2013-12-18 2015-06-24 国家电网公司 Data transmission method and device for power distribution system
CN107918323A (en) * 2017-11-28 2018-04-17 苏州合利美电子科技有限公司 A kind of electricity meter parameter acquisition device based on light-coupled isolation
WO2018103579A1 (en) * 2016-12-07 2018-06-14 中兴通讯股份有限公司 Meter reading method, apparatus and system, and communication gateway
CN108628211A (en) * 2018-05-08 2018-10-09 宁波天德创新智能科技有限公司 A kind of data concentrator and application method of installation and repairing quality intelligent control platform
CN108732977A (en) * 2018-08-30 2018-11-02 四川中电启明星信息技术有限公司 A kind of collecting method and system
WO2019184652A1 (en) * 2018-03-29 2019-10-03 华为技术有限公司 Data transmission method and related apparatus
CN112564286A (en) * 2020-12-09 2021-03-26 广东电网有限责任公司清远供电局 Power failure and recovery control device and method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104735100A (en) * 2013-12-18 2015-06-24 国家电网公司 Data transmission method and device for power distribution system
CN104391143A (en) * 2014-11-20 2015-03-04 成都华瑞祥电器成套设备有限公司 Smart electric meter measuring box system
CN104464251A (en) * 2014-12-29 2015-03-25 国家电网公司 Energy meter data and information collecting system
WO2018103579A1 (en) * 2016-12-07 2018-06-14 中兴通讯股份有限公司 Meter reading method, apparatus and system, and communication gateway
CN107918323A (en) * 2017-11-28 2018-04-17 苏州合利美电子科技有限公司 A kind of electricity meter parameter acquisition device based on light-coupled isolation
WO2019184652A1 (en) * 2018-03-29 2019-10-03 华为技术有限公司 Data transmission method and related apparatus
US11665070B2 (en) 2018-03-29 2023-05-30 Huawei Technologies Co., Ltd. Data transmission method and related apparatus
CN108628211A (en) * 2018-05-08 2018-10-09 宁波天德创新智能科技有限公司 A kind of data concentrator and application method of installation and repairing quality intelligent control platform
CN108732977A (en) * 2018-08-30 2018-11-02 四川中电启明星信息技术有限公司 A kind of collecting method and system
CN112564286A (en) * 2020-12-09 2021-03-26 广东电网有限责任公司清远供电局 Power failure and recovery control device and method

Similar Documents

Publication Publication Date Title
CN103247157A (en) Electric quantity data wireless acquisition device and electric quantity data acquisition system
AU2012253078B2 (en) Data acquisition concentrator and data acquisition method
CN102157057A (en) Wi-Fi (Wireless Fidelity)-based wireless meter reading device
CN103604962A (en) S9 multi-module energy meter collecting terminal
CN107196417A (en) Low-voltage distribution running status remote supervision system based on LoRa mechanicss of communication
CN112995100A (en) Intelligent terminal suitable for power Internet of things and communication access method thereof
CN109215322A (en) A kind of remote communication module and concentrator
CN103646524B (en) A kind of communication means of double-mode local communication module device of electric energy meter
CN203632354U (en) Electricity consumption information acquisition abnormity positioning system in electric network
CN113810788A (en) Intelligent ammeter information transmission method and device and terminal equipment
CN105243814A (en) Data collector for intelligent meter reading network system
CN108770078A (en) Photovoltaic plant multi-stage data monitors and composite information Transmission system
CN202677599U (en) Self-adapting watt-hour meter collector
CN112654022A (en) Electric power system thing networking data acquisition system based on loRa communication
CN207637288U (en) A kind of network-enabled intelligent single-phase meter communication module based on 4G technologies
CN109920232A (en) Electric power multi service access terminal and management system based on NB-loT
CN105931447A (en) Downlink communication system of low-voltage power meter reading system and meter reading method
CN207199069U (en) A kind of municipal power distribution station Multifunctional meter number recorder
CN206249047U (en) Intelligent meter counts the data acquisition server and system of collection integrality
CN210518408U (en) Communication access equipment
CN204576242U (en) Based on MESH network, electrical network electric energy is implemented to the management system of remote monitoring
CN104579848A (en) Data analyzing and network monitoring integration method for OBS instrument
CN210327551U (en) Dual-card dual-standby communication module suitable for electric power intelligent metering terminal
CN107024886A (en) Intelligence control system based on Internet of Things architectural framework
CN205959409U (en) Water -electricity -gas heat integration collector

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C05 Deemed withdrawal (patent law before 1993)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130814