CN100570644C - Double-system type ETC trackside equipment and communication means thereof - Google Patents
Double-system type ETC trackside equipment and communication means thereof Download PDFInfo
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- CN100570644C CN100570644C CNB200810028608XA CN200810028608A CN100570644C CN 100570644 C CN100570644 C CN 100570644C CN B200810028608X A CNB200810028608X A CN B200810028608XA CN 200810028608 A CN200810028608 A CN 200810028608A CN 100570644 C CN100570644 C CN 100570644C
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Abstract
The invention discloses a kind of double-system type ETC trackside equipment and communication means thereof that is applied in the electronic charging system without parking, described double-system type ETC trackside equipment comprises radiating circuit unit, receiving circuit unit, digital control circuit unit and antenna element, utilize digital control circuit unit controls radiating circuit unit and the receiving circuit unit data-signal by antenna element emission or reception different systems, the board units in realization and the ETC system communicates; Communication party's rule of described double-system type ETC trackside equipment is set up corresponding with it application by roadside device according to type under the board units and is handled.Solve the ETC equipment of using in area, present Guangdong and used the problem of transition to GB, realize a kind of can be compatible Guangdong use and the roadside device of GB application, can solve area, present Guangdong ETC equipment greatly and not meet the situation that GB is used, for realizing in the future the interconnected technical foundation of laying of ETC device intercommunicating in all parts of the country.
Description
Technical field
The present invention relates to intelligent transportation system (Intelligent Transport System, abbreviation ITS) electric non-stop toll (the Electronic Toll Collection in the application, be called for short ETC) the systems technology field, particularly a kind of roadside device (Road Side Units in the electronic charging system without parking that GB uses of meeting that is applied to the area, Guangdong, be called for short RSU), and based on the communication means of this roadside device.
Background technology
At first, the relational language among the present invention is carried out description below:
DSRC: Dedicated Short Range Communications, (Dedicated Short Range Communication is called for short DSRC) is a kind of short distance microwave communication system of the 5.8GHz of use frequency range.
ETC: electric non-stop toll (Electronic Toll Collection, be called for short ETC), be a kind of do not need to stop pay the fees charging method by charge station, vehicle is installed electronic tag, finishes charging process by board units and roadside device communication.
RSU: roadside device (Road Side Unit, be called for short RSU), also claim road side base station, its major function be with vehicle on board units (OBU) and the host computer installed carry out communication, related transmitting information.
OBU: electronic tag or board units (On Board Unit is called for short OBU), be installed in the equipment that Che Nei and roadside device (RSU) communicate, also store simultaneously about the information relevant, as information such as license plate number, vehicles with electric non-stop toll.
BST: beacon service table (Beacon Service Table is called for short BST), at first to broadcast BST information by roadside device (RSU) and give board units (OBU), beginning is carried out handshake communication with board units.
Use in Guangdong: at present in the widespread use of Guangdong Province's electric non-stop toll (ETC) equipment, and ETC equipment possesses the own technical system in Guangdong Province, about 200 ETC tracks arranged, more than 20 ten thousand OBU user; Therefore define be applied as " the Guangdong application " of electronic tag and roadside device in the present invention in Guangdong Province.
China ETC national standard: the electric non-stop toll national standard of the formal promulgation of the national bid committee of in May, 2007 China, be called for short Chinese ETC national standard here.This standard comprises five parts, is respectively:
GB/T 20835.1-2007 " electronic charging Dedicated Short Range Communications, part 1: Physical layer ",
GB/T 20835.2-2007 " electronic charging Dedicated Short Range Communications, part 2: link layer ",
GB/T 20835.3-2007 " electronic charging Dedicated Short Range Communications, the 3rd part: application layer ",
GB/T 20835.4-2007 " electronic charging Dedicated Short Range Communications, the 4th part: equipment is used ",
GB/T 20835.5-2007 " electronic charging Dedicated Short Range Communications, the 5th part: Physical layer major parameter method of testing ".
GB is used: refer to that the equipment that meets above-mentioned Chinese ETC national standard is applied as " GB application ".
Double-standard: refer to the application of both compatible Guangdong, the technology that compatible again GB is used.
Electronic charging system without parking comprises two key equipments usually: electronic tag (be also referred to as board units, be called for short OBU) and roadside device (being called for short RSU).Wherein, electronic tag (OBU) is installed on the vehicle, and roadside device (RSU) is installed in charge station's track front end.When vehicle approaching charge station, roadside device (RSU) is read and write electronic tag (OBU), gathers the information that writes down in the electronic tag, finishes transaction, and notice track computing machine, finishes a series of actions such as expense demonstration, the clearance of arguing for the sake of arguing.
In Dec, 2002, Guangdong Province has issued the ETC networking standard " Guangdong Province's expressway network toll system " that is applicable to the area, Guangdong, up to the present, electronic charging system without parking is in the operation fully under way of Guangdong the whole province, the ETC track quantity of having built up is above 200, OBU user surpasses 200,000, is the ETC system that uses the earliest in China, and is largest, the most extensive.
In May, 2007, the Chinese ETC national standard " electronic charging Dedicated Short Range Communications, " of Ministry of Communications's issue is totally five parts, this national standard range of application is a national each province municipality directly under the Central Government of autonomous region, and the purpose of issuing this standard is in order to be that ETC system equipment in all parts of the country reaches and interconnects.The end of the year in 2007, areas such as Beijing, Fujian begin to use the ETC system that meets Chinese ETC national standard, and the Yangtze River Delta, area, Beijing-Tianjin Ji have entered demonstration project and used.
But use in Guangdong and GB is applied on the technical system also incomplete same.In the area, Guangdong, because historical reasons, the time ratio China ETC national standard that Guangdong ETC equipment uses takes early 5 years, and therefore, the present ETC equipment that uses in Guangdong Province meets Guangdong to be used, and uses and meet GB.In the long run, the ETC equipment that uses in the area, Guangdong Province will must satisfy national standard to the GB application development, just can reach the whole nation and interconnect.
Realize using to GB from Guangdong and use transition, the OBU user in the area, Guangdong reaches more than 200,000 at present, more than 20 ten thousand electronic tags is recalled and is changed, no matter be from economically or all be unpractical the social influence.Therefore, must set about from roadside device, roadside device is carried out upgrading, make roadside device can compatible meet the electronic tag of using in Guangdong at present and carry out communication transaction, the electronic tag that also can compatible meet the GB application carries out communication transaction.After all roadside device transformations finish in Guangdong Province, the electronic tag of new issue will all adopt the electronic tag that GB is used on the market.
For example, the Chinese invention patent CN 1312640C in Granted publication on April 25th, 2007 discloses a kind of fixed station communication system, E-payment system and method thereof, and it can be realized that board units with the various protocols type communicates and collect toll and use.In particular, this invents described E-payment system is a kind of dissimilar Communication between protocols system based on same communication frequency (5.8GHz as shown in Figure 6), wherein each communication protocol has all adopted different modulation demodulation systems, need be between above-mentioned dissimilar agreement during system works frequently switch, with reach with various board units between communicate by letter.
Summary of the invention
At the technological deficiency that exists in the prior art, the objective of the invention is to solve the transition problem of the ETC equipment of present Guangdong area application to the GB application, propose a kind of can be compatible Guangdong use and the roadside device and the communication means thereof of GB application, solve area, present Guangdong ETC equipment and do not meet the situation that GB is used, lay technical foundation for realizing in the future the interconnection of ETC equipment in all parts of the country.
The technical solution adopted in the present invention: a kind of double-system type ETC trackside equipment, comprise radiating circuit unit, receiving circuit unit, digital control circuit unit and antenna element, wherein: the signal input part of described radiating circuit unit is connected with the digital control circuit unit, output terminal is connected with antenna element, be used to produce the transmit frequency signal that meets different systems, and export the antenna element emission after modulating with the data-signal that is sent out to; The signal input part of described receiving circuit unit is connected with antenna element, output terminal is connected with the digital control circuit unit, be used to produce the local frequency signal that meets different systems, and carry out exporting the digital control circuit unit to after the demodulation with the data-signal that receives; Described digital control circuit unit comprises central processing unit, the data-signal that is used to control emission or receives different systems, and the board units in realization and the ETC system communicates; Described antenna element is controlled by the digital control circuit unit, is used for emission or received RF signal.
Above-mentioned radiating circuit unit comprises the first transmission frequency source and the second transmission frequency source, two-way transmission frequency source is connected with radio-frequency (RF) switch with second wave filter through first wave filter respectively, and the output signal of described radio-frequency (RF) switch exports antenna element to through attenuator, modulator, promotion level and power amplifier successively.
Above-mentioned receiving circuit unit comprises the first receive frequency source and the second receive frequency source, and two-way receive frequency source is connected with radio-frequency (RF) switch respectively, and the output terminal of described radio-frequency (RF) switch is connected through one of input end of driver and frequency mixer; Another input end of described frequency mixer is connected with antenna element with low noise amplifier through wave filter, and the output signal of frequency mixer exports the digital control circuit unit to through intermediate-frequency filter, intermediate frequency amplifier and detuner successively.
Above-mentioned digital control circuit unit comprises central processing unit and the mission controller that is attached thereto, launching code device, receives controller, Rcv decoder and antenna controller, described mission controller is connected with the radiating circuit unit with the launching code device, described reception controller is connected with receiving circuit unit with Rcv decoder, and described antenna controller is connected with antenna element.Wherein, the mission controller of described digital control circuit unit is connected with radio-frequency (RF) switch in the radiating circuit unit, is used to control the first transmission frequency source and the second transmission frequency source is switched.The reception controller of described digital control circuit unit is connected with the radio-frequency (RF) switch in the receiving circuit unit, is used to control the first receive frequency source and the second receive frequency source is switched.
Above-mentioned antenna element comprises radio-frequency (RF) switch and first dual-mode antenna that is attached thereto and second dual-mode antenna, and described first dual-mode antenna and second dual-mode antenna are switched by the control of radio-frequency (RF) switch.Described first dual-mode antenna and second dual-mode antenna adopt left circular polarisation mode and right circular polarisation mode respectively.
Simultaneously, the present invention also provides a kind of communication means of double-system type ETC trackside equipment, is applied to comprise the electronic charging system without parking of roadside device and board units, comprises the steps:
(a) meeting Guangdong by the roadside device emission uses and GB applying broadcasting signal;
(b) after roadside device detects the back-signalling of board units, judge the type of board units, and enter corresponding treatment scheme according to type under the board units;
(c1) if board units meets Guangdong to be used, roadside device promptly connects with this board units, and it is met the processing that use in Guangdong;
(c2) if board units meets GB to be used, roadside device promptly connects with this board units, and it is met the processing that GB is used.
Especially, the roadside device in the above-mentioned steps (a) is launched successively according to polling mode and is met that use in Guangdong and GB applying broadcasting signal.
The present invention has following advantage and effect with respect to prior art:
1) two kinds of different application is combined, solve the ETC equipment of using in area, present Guangdong and used the problem of transition to GB, realize a kind of can be compatible Guangdong use and the roadside device of GB application, can solve area, present Guangdong ETC equipment greatly and not meet the situation that GB is used, for realizing in the future the interconnected technical foundation of laying of ETC device intercommunicating in all parts of the country.
2) the synthetic mode of using of switching of employing multichannel cooperates process optimization, and the energy quick identification goes out board units (OBU) equipment of different application.
3) can discern the type of board units (OBU) automatically, and enter the application corresponding treatment scheme according to type under the board units.
4) adopt the mode that has similar partial common in two kinds of standard application, for example, in radiating circuit unit and receiving circuit unit, adopted identical modulation-demodulation circuit, and, adopt different transmission frequency sources and receive the local frequency source, and the antenna of corresponding different polarization modes for dissimilar communication protocol, thereby simplified design, reduce volume, reduced cost of products, helped promoting the upgrading of the existing ETC system in Guangdong roadside device.
Description of drawings
Fig. 1 is the hardware principle block diagram of roadside device of the present invention;
Fig. 2 is the process flow diagram of the communication means of roadside device of the present invention.
Embodiment
Be described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.
As shown in Figure 1, double-system type ETC trackside equipment of the present invention, comprise radiating circuit unit 1, receiving circuit unit 2, digital control circuit unit 3 and antenna element 4, the signal input part of described radiating circuit unit 1 is connected with digital control circuit unit 3, output terminal is connected with antenna element 4, be used to produce the transmit frequency signal that meets different systems, and export the antenna element emission after modulating with the data-signal that is sent out to; The signal input part of described receiving circuit unit 2 is connected with antenna element 4, output terminal is connected with digital control circuit unit 3, be used to produce the local frequency signal that meets different systems, and carry out exporting the digital control circuit unit to after the demodulation with the data-signal that receives; Described digital control circuit unit 3 comprises central processing unit 30, the data-signal that is used to control emission or receives different systems, and the board units (OBU) in realization and the ETC system communicates; Described antenna element 4 is controlled by digital control circuit unit 3, is used for emission or received RF signal.Below specifically introduce the structure of each unit module in this roadside device:
Radiating circuit unit 1 comprises the first transmission frequency source 10 and the second transmission frequency source 12, two-way transmission frequency source (using the transmission frequency source of using with GB corresponding to Guangdong) is connected with radio-frequency (RF) switch 14 with second wave filter 13 through first wave filter 11 respectively, and described radio-frequency (RF) switch 14 is linked in sequence successively with attenuator 15, modulator 16, promotion level 17, power amplifier 18.Select through radio-frequency (RF) switch 14 by the radiofrequency signal that the first transmission frequency source 10 and the second transmission frequency source 12 generate, export antenna element 4 emissions after modulating with the data-signal that is sent out to.Power switch 19 among the figure is connected with power amplifier 18, for power amplifier provides power supply.
Receiving circuit unit 2 comprises the first receive frequency source 20 and the second receive frequency source 21, two-way receive frequency source (using and the local frequency source of GB application corresponding to Guangdong) is connected with radio-frequency (RF) switch 22 respectively, and the output terminal of described radio-frequency (RF) switch 22 is connected through one of input end of driver 23 and frequency mixer 24; Another input end of frequency mixer 24 is connected with antenna element 4 with low noise amplifier 26 by wave filter 25.Select through radio-frequency (RF) switch 22 by the local oscillation signal that the first receive frequency source 20 and the second receive frequency source 21 generate, data-signal with the board units that is received by antenna element 4 carries out mixing, by frequency mixer 24 outputs, export digital control circuit unit 3 to through intermediate-frequency filter 27, intermediate frequency amplifier 28 and detuner 29 successively then.
Aforesaid ETC roadside device can be used and two kinds of standards of GB application in simultaneously compatible Guangdong by the digital control circuit unit controls, and wherein the principle of work of the physical circuit in each unit module is prior art, describes no longer one by one at this.As shown in Figure 2, the communication means of double-system type ETC trackside equipment of the present invention is applied to comprise in the electronic charging system without parking of roadside device (RSU) and board units (OBU), specifically comprises the steps:
(a) at first launch successively according to polling mode and meet that use in Guangdong and GB applying broadcasting signal (BST) by roadside device;
(b) when roadside device after detecting the back-signalling of board units under the accepting state, judge the type of this board units, and enter corresponding treatment scheme according to type under the board units;
(c1) if meeting Guangdong, uses board units, roadside device promptly connects with this board units, and it is met the processing that use in Guangdong---generate by the radiating circuit unit and meet the radiofrequency signal that use in Guangdong, the output of digital control circuit unit meets the coded data that use in Guangdong, after ovennodulation, export by the dual-mode antenna emission, receiving circuit unit is used according to Guangdong and is generated corresponding local oscillation signal simultaneously, antenna element receives the data-signal from board units, and, handle through being sent to the digital control circuit unit after the demodulation by the suitable intermediate-freuqncy signal of frequency mixer generation;
(c2) if meeting GB, uses board units, roadside device promptly connects with this board units, and it is met the processing that GB is used---generate by the radiating circuit unit and meet the radiofrequency signal that GB is used, the output of digital control circuit unit meets the coded data that GB is used, after ovennodulation, export by the dual-mode antenna emission, receiving circuit unit is used according to GB and is generated corresponding local oscillation signal simultaneously, antenna element receives the data-signal from board units, and, handle through being sent to the digital control circuit unit after the demodulation by the suitable intermediate-freuqncy signal of frequency mixer generation.
In sum, the present invention uses Guangdong and the GB application combines, solve the ETC equipment of using in area, present Guangdong and used the problem of transition to GB, realize a kind of can be compatible Guangdong use and the roadside device of GB application, can solve area, present Guangdong ETC equipment greatly and not meet the situation that GB is used, for realizing in the future the interconnected technical foundation of laying of ETC device intercommunicating in all parts of the country.
Claims (11)
1. a double-system type ETC trackside equipment comprises radiating circuit unit, receiving circuit unit, digital control circuit unit and antenna element, it is characterized in that:
The signal input part of described radiating circuit unit is connected with the digital control circuit unit, and output terminal is connected with antenna element, is used to produce the transmit frequency signal that meets different systems, and exports the antenna element emission after modulating with the data-signal that is sent out to;
The signal input part of described receiving circuit unit is connected with antenna element, output terminal is connected with the digital control circuit unit, be used to produce the local frequency signal that meets different systems, and carry out exporting the digital control circuit unit to after the demodulation with the data-signal that receives;
Described digital control circuit unit comprises central processing unit, the data-signal that is used to control emission or receives different systems, and the board units in realization and the ETC system communicates;
Described antenna element is controlled by the digital control circuit unit, is used for emission or received RF signal.
2. double-system type ETC trackside equipment according to claim 1, it is characterized in that, described radiating circuit unit comprises the first transmission frequency source and the second transmission frequency source, two-way transmission frequency source is connected with radio-frequency (RF) switch with second wave filter through first wave filter respectively, and the output signal of described radio-frequency (RF) switch exports antenna element to through attenuator, modulator, promotion level and power amplifier successively.
3. double-system type ETC trackside equipment according to claim 2, it is characterized in that, described digital control circuit unit comprises central processing unit and the mission controller that is attached thereto, launching code device, receives controller, Rcv decoder and antenna controller, described mission controller is connected with the radiating circuit unit with the launching code device, described reception controller is connected with receiving circuit unit with Rcv decoder, and described antenna controller is connected with antenna element.
4. double-system type ETC trackside equipment according to claim 3, it is characterized in that, the mission controller of described digital control circuit unit is connected with radio-frequency (RF) switch in the radiating circuit unit, is used to control the first transmission frequency source and the second transmission frequency source is switched.
5. double-system type ETC trackside equipment according to claim 1, it is characterized in that, described receiving circuit unit comprises the first receive frequency source and the second receive frequency source, two-way receive frequency source is connected with radio-frequency (RF) switch respectively, and the output terminal of described radio-frequency (RF) switch is connected through one of input end of driver and frequency mixer; Another input end of described frequency mixer is connected with antenna element with low noise amplifier through wave filter, and the output signal of frequency mixer exports the digital control circuit unit to through intermediate-frequency filter, intermediate frequency amplifier and detuner successively.
6. double-system type ETC trackside equipment according to claim 5, it is characterized in that, described digital control circuit unit comprises central processing unit and the mission controller that is attached thereto, launching code device, receives controller, Rcv decoder and antenna controller, described mission controller is connected with the radiating circuit unit with the launching code device, described reception controller is connected with receiving circuit unit with Rcv decoder, and described antenna controller is connected with antenna element.
7. double-system type ETC trackside equipment according to claim 6, it is characterized in that, the reception controller of described digital control circuit unit is connected with the radio-frequency (RF) switch in the receiving circuit unit, is used to control the first receive frequency source and the second receive frequency source is switched.
8. double-system type ETC trackside equipment according to claim 1, it is characterized in that, described antenna element comprises radio-frequency (RF) switch and first dual-mode antenna that is attached thereto and second dual-mode antenna, and described first dual-mode antenna and second dual-mode antenna are switched by the control of radio-frequency (RF) switch.
9. double-system type ETC trackside equipment according to claim 8 is characterized in that, described first dual-mode antenna and second dual-mode antenna adopt left circular polarisation mode and right circular polarisation mode respectively.
10. the communication means of a double-system type ETC trackside equipment is applied to comprise it is characterized in that the electronic charging system without parking of roadside device and board units, comprises the steps:
(a) meeting Guangdong by the roadside device emission uses and GB applying broadcasting signal;
(b) after roadside device detects the back-signalling of board units, judge the type of board units, and enter corresponding treatment scheme according to type under the board units;
(c1) if board units meets Guangdong to be used, roadside device promptly connects with this board units, and it is met the processing that use in Guangdong;
(c2) if board units meets GB to be used, roadside device promptly connects with this board units, and it is met the processing that GB is used.
11. the communication means of double-system type ETC trackside equipment according to claim 10 is characterized in that, the roadside device in the described step (a) is launched successively according to polling mode and is met that use in Guangdong and GB applying broadcasting signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200810028608XA CN100570644C (en) | 2008-06-06 | 2008-06-06 | Double-system type ETC trackside equipment and communication means thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200810028608XA CN100570644C (en) | 2008-06-06 | 2008-06-06 | Double-system type ETC trackside equipment and communication means thereof |
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| CN101299280A CN101299280A (en) | 2008-11-05 |
| CN100570644C true CN100570644C (en) | 2009-12-16 |
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Families Citing this family (18)
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| CN101996425B (en) * | 2009-08-26 | 2013-06-05 | 中兴通讯股份有限公司 | Compatible toll charging method, device and system |
| CN101673419B (en) * | 2009-10-26 | 2011-01-26 | 北京中交国通智能交通系统技术有限公司 | Method for providing toll data for taxi meter by ETC vehicle-mounted equipment |
| CN102082587B (en) * | 2009-12-01 | 2015-05-20 | 中兴通讯股份有限公司 | Data communication method and system of vehicle-mounted unit |
| CN102222369A (en) * | 2010-04-13 | 2011-10-19 | 深圳市金溢科技有限公司 | Method and device for distinguishing beacon service table (BST) signal protocol of road side equipment by national standard/Guangdong standard dual-mode no-parking charge on-board unit |
| WO2012119305A1 (en) * | 2011-03-08 | 2012-09-13 | 深圳市金溢科技有限公司 | System and method for charging authentication in an intelligent traffic system |
| CN102810219B (en) * | 2011-05-31 | 2016-03-02 | 中兴通讯股份有限公司 | Based on label transaction method and the system of radio-frequency (RF) identification |
| CN102324114A (en) * | 2011-09-20 | 2012-01-18 | 广州新软计算机技术有限公司 | The method and apparatus of the electric non-stop toll of compatible multiple ETC standard |
| CN103177479B (en) * | 2011-12-20 | 2015-09-30 | 北京北大千方科技有限公司 | Road side equipment and data processing method in road side equipment |
| CN102542621B (en) * | 2012-01-04 | 2014-12-03 | 中国电子科技集团公司第三十八研究所 | Electric toll road side equipment based on intelligent antenna technology |
| CN102693560A (en) * | 2012-05-17 | 2012-09-26 | 上海搜林信息技术有限公司 | Recording method and device for trading process of electronic toll collection |
| CN103778668A (en) * | 2013-03-05 | 2014-05-07 | 深圳市金溢科技有限公司 | Driveway transaction abnormity processing method and system |
| CN103778671A (en) * | 2013-04-15 | 2014-05-07 | 深圳市金溢科技有限公司 | ETC device and information interaction method |
| CN103778673B (en) * | 2013-04-23 | 2016-04-27 | 深圳市金溢科技股份有限公司 | Electronic communication device, electronic tag and electronic charging system without parking |
| CN103731178B (en) * | 2013-10-17 | 2016-01-06 | 深圳市金溢科技股份有限公司 | A kind of road side unit radio frequency control and relevant apparatus |
| CN111145364B (en) * | 2020-01-03 | 2021-06-29 | 北京握奇数据股份有限公司 | Roadside parking management system |
| CN114389009A (en) * | 2020-10-16 | 2022-04-22 | 华为技术有限公司 | Communication apparatus and method |
| CN112562104A (en) * | 2020-11-26 | 2021-03-26 | 东南大学 | Programmable self-adaptive single-chip vehicle-mounted unit |
| CN114299710A (en) * | 2021-11-24 | 2022-04-08 | 广州市埃特斯通讯设备有限公司 | Method and system for applying ETC to highway service area to collect traffic flow |
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Address after: Nanshan District Keyuan Road Shenzhen city Guangdong province 518057 Tsinghua building A building 12 layer Patentee after: SHENZHEN GENVICT TECHNOLOGY CO., LTD. Address before: 518057 R & D complex building, Tsinghua information port, North Zone, Nanshan District hi tech Zone, Shenzhen, Guangdong, 808 Patentee before: Shenzhen Jinyi Technologies Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20190606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |