CN105118298A - A crossroad red light running snapshot system based on a ZigBee - Google Patents
A crossroad red light running snapshot system based on a ZigBee Download PDFInfo
- Publication number
- CN105118298A CN105118298A CN201510506252.6A CN201510506252A CN105118298A CN 105118298 A CN105118298 A CN 105118298A CN 201510506252 A CN201510506252 A CN 201510506252A CN 105118298 A CN105118298 A CN 105118298A
- Authority
- CN
- China
- Prior art keywords
- module
- zigbee
- image
- red light
- crossroad
- 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.)
- Withdrawn
Links
Abstract
The invention discloses a crossroad red light running snapshot system based on a ZigBee, and belongs to the technical field of intelligent traffic vehicle snapshot systems. The system comprises a traffic monitoring terminal, a coordinator, a router and ZigBee wireless network nodes. Each ZigBee wireless network node is arranged on each crossroad of a city, and comprises a ZigBee module, a signal lamp state input unit, a vehicle detection unit, a control unit and an image acquisition unit. The image acquisition unit comprises a brightness detection module, an image snapshot module, a first fill-in light module, a second fill-in light module, a third fill-in light module, an image storage module and an image de-noising module. According to the invention, through utilization of a ZigBee wireless communication network, red light running conditions of each crossroad of the city can be monitored in day and night, and inefficiencies of unclear shoot images are avoided.
Description
Technical field
The present invention relates to a kind of crossroad based on ZigBee to make a dash across the red light capturing system, belong to intelligent traffic vehicle capturing system technical field.
Background technology
In order to reduce cause because making a dash across the red light traffic hazard, traffic congestion and traffic disturbance, traffic cross-road in big and medium-sized cities has all installed round-the-clock electronic police, violating the regulations behavior of making a dash across the red light is monitored in real time, and using the illegal picture that the photographs foundation as punishment.
Application number is 201410630011.8, the applying date be on November 11st, 2014 application discloses a kind of pedestrian running red light automatic snapshot system and recognition methods, described automatic snapshot system comprises the system management subsystem of automatically capturing for configuring and manage pedestrian running red light, for the candid photograph subsystem violating the regulations captured the pedestrian made a dash across the red light and collect evidence, for reminding and warn the warning subsystems violating the regulations of jaywalker, for preserving the data storage subsystem of original image and candid photograph image violating the regulations and video, and for candid photograph image and video data being uploaded to the network transmitting sub-system of traffic police's platform or server, described system management subsystem is connected with candid photograph subsystem violating the regulations, described candid photograph subsystem violating the regulations is connected with warning subsystems violating the regulations, data storage subsystem, network transmitting sub-system respectively, and described data storage subsystem is connected with warning subsystems violating the regulations, network transmitting sub-system respectively.Cost of the present invention is low, and without the need to human attendance, evidence is clear, and traffic police can be replaced on duty incessantly at crossing, and inspection citizen civilization is gone across the road.
Application number is 201310608719.9, the applying date is application discloses a kind of crossing temporary traffic signal lamp and making a dash across the red light grasp shoot device of on November 18th, 2013, be arranged on electricity shortage, traffic lights are about to the crossing built or traffic lights occur temporary derangement and cannot use, supervise automobile driver voluntary observance traffic rules.It is characterized in that being made up of base, support bar, light filling equipment, high-definition camera, Traffic signal box, connecting link, solar panel.Control box is fixed with in described base.Accumulator, storage medium, control module, behavior of making a dash across the red light evidence obtaining unit is included in described control box.Described control module controls while two, certain direction traffic lights are shown as red light, and video in two the high-definition camera shooting and monitoring regions controlling this direction, until red light display terminates to stop shooting.The described behavior evidence obtaining cell processing video that makes a dash across the red light, analyzes and detects moving vehicle, extract vehicle movement track, judge whether it is act of violating regulations according to track, if act of violating regulations, then form forensic information violating the regulations and be stored to storage medium.
Application number is 201410088547.1, the applying date is that the application for a patent for invention on March 11st, 2014 provides one and to make a dash across the red light capturing system and method, comprise step: second camera captures headstock photo, goes out license board information and headstock photo, license board information and candid photograph time are sent to signal conditioning package buffer memory according to headstock photo array; Whether first camera identification vehicle breaks rules and regulations, if violating the regulations, go out license board information according to comprising tailstock image recognition and photo violating the regulations, license board information violating the regulations and time violating the regulations are sent to signal conditioning package buffer memory; Signal conditioning package is receiving the photo violating the regulations that first camera sends, license board information violating the regulations and after the time violating the regulations, within the described candid photograph time that the mistiming of the candid photograph time of time violating the regulations and headstock photo is less than threshold value, search the headstock photo mated with photo violating the regulations and by described photo violating the regulations and described in the headstock photo that finds be merged into a record violating the regulations.This invention can obtain headstock photo by adding second camera, thus obtains the head portrait of driver, makes record violating the regulations be accurate to driver.
Existing red-light violation automatic capturing system mainly relies on crossroad and arranges camera shooting pedestrian violating the regulations and vehicle, and when taking because backlight or shooting environmental dim, affect the sharpness of taking pictures.
Summary of the invention
In order to solve the problem, the present invention proposes a kind of crossroad based on ZigBee to make a dash across the red light capturing system, use ZigBee wireless communication networks, the situation of making a dash across the red light of 24 hours monitoring each crossroads, city, and it is dim to avoid shooting environmental, the not fogging clear deficiency of shooting.
The present invention adopts following technical scheme for solving its technical matters:
Make a dash across the red light capturing system in a kind of crossroad based on ZigBee, comprise traffic monitoring terminal, telegon, router and ZigBee wireless network node, each router is connected with n ZigBee wireless network node, m router is connected with traffic monitoring terminal by telegon, n and m be greater than 1 natural number; Each ZigBee wireless network node is arranged on each crossroad in city, included ZigBee module, signal lamp state input block, vehicle detection unit and control module, described signal lamp state input block, vehicle detection unit are connected with ZigBee module respectively with control module; The output terminal of described ZigBee module is connected with antenna by antenna transceiver, and described antenna and residing router carry out wireless telecommunications; Described signal lamp state input block is used for the state of signal lamp to be input to control module; Whether described vehicle detection unit has vehicle to pass through according to the command detection crossroad of control module; Described control module is for receiving the information of other each unit transmission and sending instruction after carrying out multilevel iudge;
Described ZigBee wireless network node also comprises image acquisition units, and image acquisition units is connected with ZigBee module, described image acquisition units for receive control module instruction after shooting in violation of rules and regulations vehicle image and carry out image definition process, described image acquisition units comprises luminance brightness detection module, video capture module, first supplementary lighting module, second supplementary lighting module, 3rd supplementary lighting module, image storage module and image denoising module, described luminance brightness detection module captures the luminance brightness of environment for detecting, described first, two, three supplementary lighting module are used for when video capture module photograph, according to the change automatic light-supplementing of day illuminance, described video capture module is for taking the image of vehicle in violation of rules and regulations, described image storage module is for storing the image of vehicle in violation of rules and regulations, the image that described image denoising module is used for for storing carries out denoising process.
As a preferred technical solution of the present invention: described first supplementary lighting module strobing frequency is synchronous with the pulse signal of video capture module, described second supplementary lighting module strobing frequency is 2 times of the pulse signal of video capture module, and described 3rd supplementary lighting module strobing frequency is 1/2 of the pulse signal of video capture module.
As a preferred technical solution of the present invention: described ZigBee module is CC2530 module.
As a preferred technical solution of the present invention: described image denoising module adopts adaptive wiener filter or morphology scratch filter.
As a preferred technical solution of the present invention: described control module adopts embedded-type ARM 7 chip.
As a preferred technical solution of the present invention: described telegon is connected by RS232 serial ports with traffic monitoring terminal.
Make a dash across the red light capturing system in a kind of crossroad based on ZigBee of the present invention, adopts above technical scheme compared with prior art, have following technique effect:
1, the present invention uses ZigBee wireless communication networks, and the situation of making a dash across the red light of 24 hours monitoring each crossroads, city, ensures the safety traffic of vehicle, improves efficiency and the implementation capacity of the system that regulates the traffic.
2, the present invention is by arranging supplementary lighting module, according to the change automatic light-supplementing of shooting environmental day illuminance, ensure that the sharpness of the image of shooting violation vehicle.
3, native system is low in energy consumption, easy to use, extendability is high, is conducive to informationization, the Intelligent Process of accelerating urban traffic control system, existing urban construction scale improves the traffic capacity of city road network.
Embodiment
Below the invention is described in further details.
Make a dash across the red light capturing system in a kind of crossroad based on ZigBee, comprise traffic monitoring terminal, telegon, router and ZigBee wireless network node, each router is connected with n ZigBee wireless network node, m router is connected with traffic monitoring terminal by telegon, n and m be greater than 1 natural number; Each ZigBee wireless network node is arranged on each crossroad in city, included ZigBee module, signal lamp state input block, vehicle detection unit and control module, described signal lamp state input block, vehicle detection unit are connected with ZigBee module respectively with control module; The output terminal of described ZigBee module is connected with antenna by antenna transceiver, and described antenna and residing router carry out wireless telecommunications; Described signal lamp state input block is used for the state of signal lamp to be input to control module; Whether described vehicle detection unit has vehicle to pass through according to the command detection crossroad of control module; Described control module is for receiving the information of other each unit transmission and sending instruction after carrying out multilevel iudge;
Described ZigBee wireless network node also comprises image acquisition units, and image acquisition units is connected with ZigBee module, described image acquisition units for receive control module instruction after shooting in violation of rules and regulations vehicle image and carry out image definition process, described image acquisition units comprises luminance brightness detection module, video capture module, first supplementary lighting module, second supplementary lighting module, 3rd supplementary lighting module, image storage module and image denoising module, described luminance brightness detection module captures the luminance brightness of environment for detecting, described first, two, three supplementary lighting module are used for when video capture module photograph, according to the change automatic light-supplementing of day illuminance, described video capture module is for taking the image of vehicle in violation of rules and regulations, described image storage module is for storing the image of vehicle in violation of rules and regulations, the image that described image denoising module is used for for storing carries out denoising process.
As a preferred technical solution of the present invention: described first supplementary lighting module strobing frequency is synchronous with the pulse signal of video capture module, described second supplementary lighting module strobing frequency is 2 times of the pulse signal of video capture module, and described 3rd supplementary lighting module strobing frequency is 1/2 of the pulse signal of video capture module.
As a preferred technical solution of the present invention: described ZigBee module is CC2530 module.
As a preferred technical solution of the present invention: described image denoising module adopts adaptive wiener filter or morphology scratch filter.
As a preferred technical solution of the present invention: described control module adopts embedded-type ARM 7 chip.
As a preferred technical solution of the present invention: described telegon is connected by RS232 serial ports with traffic monitoring terminal.
The present invention uses ZigBee wireless communication networks, and the situation of making a dash across the red light of 24 hours monitoring each crossroads, city, ensures the safety traffic of vehicle, improves efficiency and the implementation capacity of the system that regulates the traffic.
ZigBee is a kind of highly reliable wireless data sending network, is similar to CDMA and GSM network.ZigBee digital transmission module is similar to mobile network base station.Communication distance from the 75m of standard to hundreds of rice, several kilometers, and support infinite expanding.ZigBee be one by a wireless data sending network platform that can how to form to 65000 wireless data transmission modules, in whole network range, can intercom mutually between each ZigBee-network digital transmission module, the distance between each network node can from the 75m infinite expanding of standard.
The feature of ZigBee be closely, low complex degree, self-organization, low-power consumption, low data rate.Mainly be suitable for automatically controlling and remote control field, various equipment can be embedded.In brief, ZigBee is exactly cheaply a kind of, the near radio networking mechanics of communication of low-power consumption.ZigBee is a kind of wireless network protocol of low speed short-distance transmission.Zigbee protocol is respectively Physical layer (PHY), MAC layer (MAC), transport layer (TL), network layer (NWK), application layer (APL) etc. from top to bottom.Wherein Physical layer and MAC layer follow the regulation of IEEE802.15.4 standard.ZigBee-network principal feature is low-power consumption, low cost, low rate, support great deal of nodes, support multiple network topology, low complex degree, quick, reliable, safety.Equipment in ZigBee-network can be divided into the Three roles such as telegon (Coordinator), aggregation node (Router), sensor node (EndDevice).
In the present invention, image denoising module adopts adaptive wiener filter or morphology scratch filter, improves the sharpness of process image.
Adaptive wiener filter, can adjust the output of wave filter according to the local variance of image, local variance is larger, and the smoothing effect of wave filter is stronger.Its final goal makes the square error of Recovery image and original image minimum.The filter effect of the method is better than mean filter effect, very useful to the edge and other HFSs retaining image, but calculated amount is larger.S filter is to the image filtering best results with white noise.
Morphology scratch filter, combines opening and closing for filtering noise, and first to there being noise image to carry out open operation, optional structure salt matrices is larger than the size of noise, and the result of thus opening is by the noise remove in background.Be finally that closed procedure is carried out to the image that back obtains, the noise on image is removed.Feature according to the method can be known, the image type that the method is suitable for is that the object size in image is all larger, and does not have tiny details, can be relatively good to the effect of such scene image partition.
The present invention can greatly the consciousness of high automobile driver, strengthen awareness of safety, reduce cause because making a dash across the red light illegal activities traffic hazard, blocking and traffic disturbance, improve the vehicle pass-through speed of traffic intersection, ensure the coast is clear.The present invention is conducive to informationization, the Intelligent Process of accelerating urban traffic control system, and existing urban construction scale improves the traffic capacity of city road network, ensures the safety traffic of vehicle, improves efficiency and the implementation capacity of the system that regulates the traffic.
Above embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.
Claims (6)
1. make a dash across the red light capturing system in the crossroad based on ZigBee, comprise traffic monitoring terminal, telegon, router and ZigBee wireless network node, each router is connected with n ZigBee wireless network node, m router is connected with traffic monitoring terminal by telegon, n and m be greater than 1 natural number; Each ZigBee wireless network node is arranged on each crossroad in city, included ZigBee module, signal lamp state input block, vehicle detection unit and control module, described signal lamp state input block, vehicle detection unit are connected with ZigBee module respectively with control module; The output terminal of described ZigBee module is connected with antenna by antenna transceiver, and described antenna and residing router carry out wireless telecommunications; Described signal lamp state input block is used for the state of signal lamp to be input to control module; Whether described vehicle detection unit has vehicle to pass through according to the command detection crossroad of control module; Described control module is for receiving the information of other each unit transmission and sending instruction after carrying out multilevel iudge;
It is characterized in that described ZigBee wireless network node also comprises image acquisition units, image acquisition units is connected with ZigBee module, described image acquisition units for receive control module instruction after shooting in violation of rules and regulations vehicle image and carry out image definition process, described image acquisition units comprises luminance brightness detection module, video capture module, first supplementary lighting module, second supplementary lighting module, 3rd supplementary lighting module, image storage module and image denoising module, described luminance brightness detection module captures the luminance brightness of environment for detecting, described first, two, three supplementary lighting module are used for when video capture module photograph, according to the change automatic light-supplementing of day illuminance, described video capture module is for taking the image of vehicle in violation of rules and regulations, described image storage module is for storing the image of vehicle in violation of rules and regulations, the image that described image denoising module is used for for storing carries out denoising process.
2. make a dash across the red light capturing system in a kind of crossroad based on ZigBee according to claim 1, it is characterized in that described first supplementary lighting module strobing frequency is synchronous with the pulse signal of video capture module, described second supplementary lighting module strobing frequency is 2 times of the pulse signal of video capture module, and described 3rd supplementary lighting module strobing frequency is 1/2 of the pulse signal of video capture module.
3. make a dash across the red light capturing system in a kind of crossroad based on ZigBee according to claim 1, it is characterized in that described ZigBee module is CC2530 module.
4. make a dash across the red light capturing system in a kind of crossroad based on ZigBee according to claim 1, it is characterized in that described image denoising module adopts adaptive wiener filter or morphology scratch filter.
5. make a dash across the red light capturing system in a kind of crossroad based on ZigBee according to claim 1, it is characterized in that described control module adopts embedded-type ARM 7 chip.
6. make a dash across the red light capturing system in a kind of crossroad based on ZigBee according to claim 1, it is characterized in that described telegon is connected by RS232 serial ports with traffic monitoring terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506252.6A CN105118298A (en) | 2015-08-18 | 2015-08-18 | A crossroad red light running snapshot system based on a ZigBee |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506252.6A CN105118298A (en) | 2015-08-18 | 2015-08-18 | A crossroad red light running snapshot system based on a ZigBee |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105118298A true CN105118298A (en) | 2015-12-02 |
Family
ID=54666266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510506252.6A Withdrawn CN105118298A (en) | 2015-08-18 | 2015-08-18 | A crossroad red light running snapshot system based on a ZigBee |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105118298A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741563A (en) * | 2016-03-31 | 2016-07-06 | 苏州玄禾物联网科技有限公司 | Crossroad red light running snapshot system based on Internet of Things |
| CN105761499A (en) * | 2016-04-07 | 2016-07-13 | 苏州玄禾物联网科技有限公司 | Crossroad red light running capturing system |
| WO2018068579A1 (en) * | 2016-10-12 | 2018-04-19 | 胜方光电科技股份有限公司 | Traffic audiovisual receiving and analyzing system |
| CN108470450A (en) * | 2017-04-13 | 2018-08-31 | 合肥圣博瑞科技有限公司 | Electronic police Intelligent supplemental lighting system |
| CN108597240A (en) * | 2018-04-28 | 2018-09-28 | 王赞恩 | ATC system and method |
| CN109068291A (en) * | 2018-07-21 | 2018-12-21 | 芜湖英特杰智能科技有限公司 | A kind of emergency method of the vehicle traffic accident emergency system based on Zigbee module |
| CN109191866A (en) * | 2018-09-07 | 2019-01-11 | 芜湖市高科电子有限公司 | A kind of vehicular traffic identifying system based on Zigbee module |
| CN113721252A (en) * | 2017-03-31 | 2021-11-30 | 华为技术有限公司 | Light supplement method, device and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079772A (en) * | 2007-04-05 | 2007-11-28 | 复旦大学 | Intelligent traffic control system based on ZigBee wireless communication |
| CN101877168A (en) * | 2009-04-29 | 2010-11-03 | 上海宝康电子控制工程有限公司 | Wireless DSP electronic policeman system for standard definition for running red light |
| US20120262579A1 (en) * | 2011-04-15 | 2012-10-18 | Hon Hai Precision Industry Co., Ltd. | Electronic device and vehicle detection method using the electronic device |
| CN202795750U (en) * | 2012-05-18 | 2013-03-13 | 江苏大学 | Embedded image processing based license plate indentifying WSN (wireless sensor network) node |
| CN104766480A (en) * | 2015-04-17 | 2015-07-08 | 无锡市崇安区科技创业服务中心 | Crossroad red light running capturing device |
-
2015
- 2015-08-18 CN CN201510506252.6A patent/CN105118298A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079772A (en) * | 2007-04-05 | 2007-11-28 | 复旦大学 | Intelligent traffic control system based on ZigBee wireless communication |
| CN101877168A (en) * | 2009-04-29 | 2010-11-03 | 上海宝康电子控制工程有限公司 | Wireless DSP electronic policeman system for standard definition for running red light |
| US20120262579A1 (en) * | 2011-04-15 | 2012-10-18 | Hon Hai Precision Industry Co., Ltd. | Electronic device and vehicle detection method using the electronic device |
| CN202795750U (en) * | 2012-05-18 | 2013-03-13 | 江苏大学 | Embedded image processing based license plate indentifying WSN (wireless sensor network) node |
| CN104766480A (en) * | 2015-04-17 | 2015-07-08 | 无锡市崇安区科技创业服务中心 | Crossroad red light running capturing device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741563A (en) * | 2016-03-31 | 2016-07-06 | 苏州玄禾物联网科技有限公司 | Crossroad red light running snapshot system based on Internet of Things |
| CN105761499A (en) * | 2016-04-07 | 2016-07-13 | 苏州玄禾物联网科技有限公司 | Crossroad red light running capturing system |
| WO2018068579A1 (en) * | 2016-10-12 | 2018-04-19 | 胜方光电科技股份有限公司 | Traffic audiovisual receiving and analyzing system |
| CN113721252A (en) * | 2017-03-31 | 2021-11-30 | 华为技术有限公司 | Light supplement method, device and system |
| CN108470450A (en) * | 2017-04-13 | 2018-08-31 | 合肥圣博瑞科技有限公司 | Electronic police Intelligent supplemental lighting system |
| CN108597240A (en) * | 2018-04-28 | 2018-09-28 | 王赞恩 | ATC system and method |
| CN109068291A (en) * | 2018-07-21 | 2018-12-21 | 芜湖英特杰智能科技有限公司 | A kind of emergency method of the vehicle traffic accident emergency system based on Zigbee module |
| CN109191866A (en) * | 2018-09-07 | 2019-01-11 | 芜湖市高科电子有限公司 | A kind of vehicular traffic identifying system based on Zigbee module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105118298A (en) | A crossroad red light running snapshot system based on a ZigBee | |
| CN202772924U (en) | Intelligent cloud toll-gate system | |
| CN201594319U (en) | Multifunctional electronic police system with high-definition snapshot | |
| CN101419754B (en) | Detection method and system for running the red light based on video | |
| CN104766480A (en) | Crossroad red light running capturing device | |
| US20180122231A1 (en) | Video data and gis mapping for traffic monitoring, event detection and change predicition | |
| CN202217385U (en) | Vehicle peccant lane taking snapshot system for special lane for bus | |
| CN111710177B (en) | Intelligent traffic signal lamp networking cooperative optimization control system and control method | |
| CN201397576Y (en) | Device for automatically shooting picture of the illegal turning of vehicles at crossings | |
| CN105096606A (en) | Automobile whistling and red light running snapshot system | |
| CN110648528A (en) | Wisdom highway management system | |
| CN207602033U (en) | Intelligent Transportation Information Collection System based on wireless sense network | |
| WO2022028508A1 (en) | Traffic monitoring terminal and traffic monitoring system | |
| CN108307568A (en) | Control device, wisdom lighting apparatus and intelligent lighting system | |
| CN202018736U (en) | Vehicle-mounted monitoring system for illegal bus lane occupation | |
| CN203325217U (en) | Integrated vehicle illegal U-turn snapshooting recognition system | |
| CN112435478A (en) | Off-site illegal management method and system based on roadside parking high-order video equipment | |
| CN109348179A (en) | A kind of road monitoring detection system and method based on artificial intelligence | |
| CN105303846A (en) | Motorway vehicle overspeed snapshot system based on ZigBee | |
| CN110087041A (en) | Video data processing and transmission method and system based on the base station 5G | |
| CN205050342U (en) | Car snapshot system that makes a dash across red light that whistles | |
| CN105206049A (en) | Bus-only lane occupation snapshot system based on ZigBee | |
| CN201134165Y (en) | System for detecting going through stop light based on video | |
| CN2718699Y (en) | Intelligent monitoring and recording system based on video trigger and velocity measurement for vehicle | |
| CN111372061A (en) | Video monitoring device and monitoring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151202 |
|
| WW01 | Invention patent application withdrawn after publication |