CN102887448A - Control system, control method and engineering machinery - Google Patents
Control system, control method and engineering machinery Download PDFInfo
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- CN102887448A CN102887448A CN2012103634724A CN201210363472A CN102887448A CN 102887448 A CN102887448 A CN 102887448A CN 2012103634724 A CN2012103634724 A CN 2012103634724A CN 201210363472 A CN201210363472 A CN 201210363472A CN 102887448 A CN102887448 A CN 102887448A
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Abstract
The invention relates to the field of engineering machinery, and discloses a control system, a control method and the engineering machinery. The control system comprises a first processing unit, a first obtaining unit and a second processing unit, wherein the first processing unit is used for enabling the engineering machinery to be in an action protection state when the state information reported by a sensor is unusual; the first obtaining unit is in signal connection with the first processing unit and is used for obtaining authorized operating information set by a user when the engineering machinery is in the action protection state; and the second processing unit is in signal connection with the first obtaining unit and is used for enabling the state information reported by the sensor to be out of work according to the authorized operating information and enabling the engineering machinery to quit the action protection state. By implementing the control system disclosed by the invention, the authorized operating information can be manually set when the engineering machinery works in an unusual working condition as one sensor or some sensors is/are in failure and the state information is incorrectly reported, and thus the whole machine can enter into the working state again so as to complete the operation or a vehicle can be quickly taken back so as to carry out the overhauling and the maintenance.
Description
Technical field
The present invention relates to engineering machinery field, particularly control system, method and construction machinery and equipment.
Background technology
Along with the fast development of economy, engineering construction project is increasing, and market is also increasing for demand large-scale, the ultra-large type hoisting crane.In some goliaths, owing to dispose the detachable parts such as super lifting device, auxiliary, mobile operating chamber, movable weight, the danger of hoisting crane self increases greatly, in order to improve the safety performance of hoisting crane, need the numerous sensor of magnitude setting to monitor the state everywhere of complete machine.
When certain or some sensors are quoted error state, no matter whether sensor is reported by mistake, control system will be operated under the unusual service condition, the restriction complete machine moves to dangerous direction, for example, when the angle of quoting crane arm when angular transducer is lower than preset value (such as zero degree), control system will be cut off hoisting crane the fall width of cloth, reduction arm and off the hook action, and send alerting signal.
Because the number of sensor and sensor combinations is numerous, the situation that sensor occurs reporting by mistake because self breaking down is more, in the prior art, when cause system works in unusual service condition lower time because of sensor wrong report, generally need suspension of works, again sensor is overhauled after adopting expeditious measures with the complete machine safe retraction, for example, when the angle of angular transducer wrong report crane arm is lower than preset value, need to put down the lift heavy thing, carry continuing to hang after complete machine safe retraction and the maintenance, affected like this construction progress, and the client has been caused unnecessary loss.
Summary of the invention
In view of this, the present invention is intended to propose a kind of control system, method and construction machinery and equipment, is being operated in the problem that unusual service condition lower time can't enter mode of operation because of sensor wrong report to solve existing construction machinery and equipment.
First aspect, the invention provides a kind of control system for construction machinery and equipment, be provided with a plurality of sensors on the described construction machinery and equipment, described control system comprises: the first processing unit, and the status information that is used for reporting at sensor makes construction machinery and equipment be in the action protection state when being unusual; The first acquiring unit that is connected with the first processing unit signal is used for obtaining the Authorized operation information that the user sets when construction machinery and equipment is in the action protection state; The second processing unit that is connected with the first acquiring unit signal is used for losing efficacy according to the status information that described Authorized operation information reports this sensor, and makes construction machinery and equipment withdraw from the action protection state.
Further, described Authorized operation information comprises: the existing condition information of the monitored object that the information that this sensor breaks down, the information of ignoring this sensor and/or this sensor are corresponding.
Further, described control system also comprises: second acquisition unit is used for obtaining the status information that it reports at this sensor before not losing efficacy; With second acquisition unit be connected the judging unit that the processing unit signal is connected, be used for judging whether institute's status information unusual;
Further, the described control system of answering also comprises: the setup unit that is connected with the first acquiring unit signal is used for setting described Authorized operation information for the user.
Further, with setup unit signal connectivity verification unit, be used for verifying whether described user is authorized user, if then enable described setup unit.
Further, described control system also comprises the display unit that is connected with the authentication unit signal with setup unit, and described display unit comprises verification operation display module and setting operation display module.
Second aspect, the present invention also provides a kind of control method for construction machinery and equipment, be provided with a plurality of sensors on the described construction machinery and equipment, the status information that described control method comprises the steps: A1, report at sensor makes construction machinery and equipment be in the action protection state when being unusual; A2, when construction machinery and equipment is in the action protection state, obtain the Authorized operation information that the user sets; A3, the status information that this sensor is reported according to described Authorized operation information lost efficacy, and make construction machinery and equipment withdraw from the action protection state.
Further, described Authorized operation information comprises: the existing condition information of the monitored object that the information that this sensor breaks down, the information of ignoring this sensor and/or this sensor are corresponding.
Further, described control method also comprised the steps: A4, verifies whether this user is authorized user, if then go to steps A 5 before steps A 1; A5, set described Authorized operation information by this user.
The third aspect, the present invention also provides a kind of construction machinery and equipment, and described construction machinery and equipment is provided with above-mentioned each described control system.
A kind of control system provided by the invention and a kind of control method break down because of certain (a bit) sensor at construction machinery and equipment (such as hoisting crane); the status information that wrong report status information or sensor report is unusual and be operated in unusual service condition lower time; can be by the artificial Authorized operation information of setting; the status information that this sensor is reported lost efficacy; and make construction machinery and equipment withdraw from the action protection state; thereby make the complete machine rearming to fulfil assignment or to return the vehicle to the garage and knock off fast to carry out repair and maintenance; for example; when the angle of reporting crane arm by mistake because of faults itself when angular transducer is lower than zero degree; control system will make complete machine be operated under the unusual service condition; and the locking hoisting crane is towards the action (being that hoisting crane enters the action protection state) of dangerous direction; actual angle (perhaps comparatively near this actual angle) by the hand inspection crane arm; and with this actual angle input control system; the status information of this sensor will be ignored by system; and make hoisting crane withdraw from the action protection state; thereby removed the motion limits of hoisting crane; make hoisting crane can work on to finish the lift heavy operation; hoisting crane can be returned the vehicle to the garage and knock off rapidly in order to carry out repair and maintenance according to regular event; compared with prior art; the present invention effectively reduces sensor wrong report etc. to the impact of construction progress, has realized the flexible control of construction machinery and equipment.
Construction machinery and equipment provided by the invention is provided with above-mentioned control system, because above-mentioned control system has more above-mentioned technique effect, therefore, this project machinery also has corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
The structured flowchart of a kind of control system for construction machinery and equipment that Fig. 1 provides for the embodiment of the invention;
The diagram of circuit of a kind of control method for construction machinery and equipment that Fig. 2 embodiment of the invention provides.
The specific embodiment
Should be pointed out that in this part that to the description of concrete structure and description order only be explanation to specific embodiment, should not be considered as that protection scope of the present invention is had any restriction.In addition, under the situation of not conflicting, embodiment and the feature among the embodiment in this part can make up mutually.
Please refer to Fig. 1, as shown in the figure, the control system of this embodiment is used for construction machinery and equipment, this project mechanically is provided with a plurality of sensors, this control system comprises the first acquiring unit, judging unit, the first processing unit, second acquisition unit and the second processing unit at least, and wherein: the status information that the first processing unit is used for reporting at sensor makes construction machinery and equipment be in the action protection state when being unusual; The first acquiring unit is connected with the first processing unit signal, is used for obtaining the Authorized operation information that the user sets when construction machinery and equipment is in the action protection state; The second processing unit is connected with the first acquiring unit signal, is used for losing efficacy according to the status information that described Authorized operation information reports this sensor, and makes construction machinery and equipment withdraw from the action protection state; Second acquisition unit is used for obtaining the status information that it reports at this sensor before not losing efficacy; Judging unit and second acquisition unit be connected the processing unit signal and be connected, be used for judging whether institute's status information unusual;
Particularly, in the engineer machinery operation process, control system is obtained the status information (can characterize the current state of monitored object) that each sensor reports, and this status information and safe preset value compared, judge whether this status information belongs to unusual, thereby determine whether construction machinery and equipment is under the unusual service condition, when definite construction machinery and equipment is in unusual service condition lower time, control system restriction or locking construction machinery and equipment are to the action (even construction machinery and equipment is in the action protection state) of dangerous direction, so that construction machinery and equipment can carry out repair and maintenance to secure side to action and after the unloading; But, the number of (being the situation that the output of a certain sensor depends on the input of other sensors) is numerous because sensor and sensor combinations, sensor is reported by mistake because of faults itself easily, and it is inconsistent that namely sensor reports the current state of the status information of control system and monitored object; Therefore; when construction machinery and equipment is in the action protection state after sensor uploaded state information; can confirm by hand inspection or other monitoring means (it is first-class for example to make a video recording) existing condition of monitored object; if the status information that the existing condition of monitored object and sensor report is inconsistent; then can determine the sensor wrong report; at this moment; can set Authorized operation information by the user; this Authorized operation information comprises the information that this sensor breaks down; the existing condition information of ignoring monitored object corresponding to the information of this sensor and/or this sensor; namely this Authorized operation information comprises at least one among the above-mentioned three; then control system is according to this Authorized operation information; make the status information that this sensor reports lost efficacy (being that the status information that no longer this sensor reported of control system is as the control parameter); and make construction machinery and equipment withdraw from the action protection state; like this so that construction machinery and equipment can continue to enter mode of operation to fulfil assignment, perhaps so that construction machinery and equipment can return the vehicle to the garage and knock off fast in order to carry out repair and maintenance.
Preferably, the control system of above-described embodiment also comprises setup unit, more preferably, also comprises authentication unit; Wherein, authentication unit is connected with the setup unit signal, is used for when the user plans metering-in control system, verifying whether described user is authorized user after construction machinery and equipment enters the action protection state, if, then enable setup unit, log in otherwise refuse this user; And setup unit is connected with the first acquiring unit signal, is used for setting Authorized operation information the user by confession user after verifying, for example supplies the existing condition information of user's input monitoring object; In addition, visualized operation for the ease of proof procedure and assignment procedure, more preferably, control system also comprises display unit, this display unit is connected with the authentication unit signal with setup unit, comprise verification operation display module and setting operation display module, carry out verification operation and setting operation thereby be convenient to the user.
Need to prove, in specific implementation process, setup unit can be configured to a plurality of other setting modules of level, and be multiple dynamic password verification module with verification units configured, wherein, various dynamic passwords are corresponding one by one with each other setting module of level, and the user must by the checking of dynamic password, could operate the setting module of appropriate level; For example, take hoisting crane as example, first rank that is set as that has surpassed breech lock Authorized operation information (such as actual lock-out state), crane arm Authorized operation information (such as actual angle state) be set as second level, the user need to input and could set the Authorized operation information that has surpassed breech lock after corresponding the first dynamic password and checking are passed through, similarly, after need to inputting corresponding the second dynamic password and pass through checking, the user could set the Authorized operation information of crane arm, about producing, the detailed process of checking dynamic password can referring to the associated description of prior art, not given unnecessary details hereby.In addition, in above-described embodiment, the first acquiring unit and setup unit or the first acquiring unit, setup unit and authentication unit also can be integrated in the same unit.
Need to prove, in the optimal way of above-described embodiment,, in other embodiments, also can realize by other means realizing the setting to Authorized operation information by display unit, for example use the mode of toggle switch.
The below is as an example of hoisting crane example and principle of work, advantage and the operating process of above-mentioned control system be described in conjunction with concrete application scenarios:
1, when having surpassed locking signal that the breech lock sensor reports when unusual, hoisting crane is under the unusual service condition, control system restriction hoisting crane hangs and carries, but (such as camera head monitor or hand inspection etc.) can be confirmed to have surpassed breech lock and really are in the lock state (namely surpassed breech lock sensor wrong report) at this moment, by all means.
In the prior art, need to adopt expeditious measures that car is retracted to safe condition and carries out repair and maintenance, hoisting crane can't continue to hang and carries, then can be by user's (having certain other professional and technical personnel of level) from display unit (such as telltale) metering-in control system in the above embodiment of the present invention, after carrying out corresponding dynamic password verification, can will surpass breech lock and be set in lock-out state, perhaps set and surpassed the breech lock sensor and break down, perhaps setting this, to have surpassed the status information that the breech lock sensor reports invalid, thereby remove hanging of hoisting crane and carry restriction, hoisting crane can be worked on a period of time, carry out repair and maintenance after perhaps making hoisting crane by normal mode car is recycled to safe condition.
2, the angle information that reports when the angular transducer of crane arm is during less than safe preset value (such as zero degree), and hoisting crane is under the unusual service condition, and control system restriction hoisting crane hangs and carries, but at this moment, is that the angle of observable principal arm is larger by naked eyes.
In the prior art, need to put down and hang thing, safety is returned the vehicle to the garage and knock off and finish can continue to hang after the maintenance and carry, the above embodiment of the present invention then can be by the user from the display unit metering-in control system, after through checking, it can be actual value or near actual value with the angle initialization of crane arm, the angular transducer of perhaps setting crane arm breaks down, it is invalid perhaps to set the status information that this angular transducer reports, thereby make construction machinery and equipment withdraw from corresponding action protection state, and then worked on a period of time, to finish the process of carrying of hanging; This is hanging that thing can not put down and the action of hoisting crane is particularly useful when being restricted.
3, other such as control cabin abnormal state restriction rotation of rotary table, the action of hoisting system pressure anomaly restriction elevator, the unusual restriction of super lift winch rope form attitude surpass move and tower arm abnormal state to limit situation and above-mentioned two kinds of situations of tower arm and principal arm action etc. similar, hereby do not give unnecessary details.
To sum up, a kind of control system that the embodiment of the invention provides is operated in unusual service condition lower time at construction machinery and equipment because certain (a bit) sensor breaks down, reports by mistake status information, can be by the artificial existing condition information of setting, make the complete machine rearming to fulfil assignment or to return the vehicle to the garage and knock off fast to carry out repair and maintenance, effectively reduce like this sensor wrong report to the impact of construction progress, realized the flexible control of construction machinery and equipment.
Please refer to Fig. 2, the control method of this embodiment is used for construction machinery and equipment, and this project mechanically is provided with a plurality of sensors, and this control method comprises the steps:
S1, obtain the status information that sensor reports;
Particularly, sensor reports control system with it after detecting the status information of detected object, and certainly, sensor may et out of order and report by mistake, and the status information that namely reports and the state of detected object are inconsistent.
S2, judge whether to be under the unusual service condition according to this status information;
Particularly, no matter whether sensor is reported by mistake, and control system is compared status information and safe preset value that sensor reports, determines whether this status information belongs to unusual, and then judge whether construction machinery and equipment is under the unusual service condition, if then go to step S3.
S3, restriction construction machinery and equipment move towards dangerous direction;
Particularly; when definite construction machinery and equipment is in unusual service condition lower time; control system makes control system be in the action protection state; to avoid occuring safety misadventure; for example; take hoisting crane as example, when the angle of crane arm was lower than 0 °, control system was with fast shut-off hoisting crane the fall width of cloth, reduction arm and off the hook action.
Can construction machinery and equipment work under S34, the judgement actual condition;
Particularly, when construction machinery and equipment is in unusual service condition lower time after sensor uploaded state information, can judge by all means whether construction machinery and equipment can work under precondition, such as the existing condition of confirming monitored object by camera head monitor or hand inspection etc., if no matter whether sensor is reported by mistake, construction machinery and equipment still can work on, and then goes to step S4.
S4, authentication of users;
Particularly, after confirming that construction machinery and equipment can work on, when the user needs metering-in control system, need whether this user of checking is authorized user, for example, verification mode has varied, for example, can verify that by the mode of dynamic password the mode of relevant dynamic password can be referring to the relevant description of said system embodiment.
S5, checking are passed through, and set Authorized operation information;
Particularly, after the user is by checking, set Authorized operation information, the existing condition information of the monitored object that the information that this Authorized operation information breaks down for this sensor, the information of ignoring this sensor and/or this sensor are corresponding.
S6, make sensor failure, withdraw from the action protection state;
Particularly; control system is according to this Authorized operation information; control the status information inefficacy that this sensor reports; make the corresponding units in the control system ignore the status information that this sensor reports; and dominant project machinery withdraws from the action protection state; like this so that construction machinery and equipment can continue to enter mode of operation to fulfil assignment, perhaps so that construction machinery and equipment can return the vehicle to the garage and knock off fast in order to carry out repair and maintenance.
The advantage of the method embodiment, principle, expansion and beneficial effect can referring to the relevant description of preamble system embodiment, not given unnecessary details hereby.
The embodiment of the invention also provides a kind of construction machinery and equipment, such as hoisting crane etc., this project machinery is provided with the described control system of above-described embodiment, because above-mentioned control system has above-mentioned technique effect, therefore, this project machinery also should possess corresponding technique effect, and the specific implementation process of its appropriate section is similar to the above embodiments, does not hereby give unnecessary details.
One of ordinary skill in the art will appreciate that, all or part of step/units/modules of realization the invention described above embodiment can be finished by the relevant hardware of programmed instruction, aforementioned program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or laser disc.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a control system is used for construction machinery and equipment, is provided with a plurality of sensors on the described construction machinery and equipment, it is characterized in that described control system comprises:
The first processing unit, the status information that is used for reporting at sensor makes construction machinery and equipment be in the action protection state when being unusual;
The first acquiring unit that is connected with the first processing unit signal is used for obtaining the Authorized operation information that the user sets when construction machinery and equipment is in the action protection state;
The second processing unit that is connected with the first acquiring unit signal is used for losing efficacy according to the status information that described Authorized operation information reports this sensor, and makes construction machinery and equipment withdraw from the action protection state.
2. control system as claimed in claim 1 is characterized in that, described Authorized operation information comprises: the existing condition information of the monitored object that the information that this sensor breaks down, the information of ignoring this sensor and/or this sensor are corresponding.
3. control system as claimed in claim 1 or 2 is characterized in that, described control system also comprises:
Second acquisition unit is used for obtaining the status information that it reports at this sensor before not losing efficacy;
With second acquisition unit be connected the judging unit that the processing unit signal is connected, be used for judging whether institute's status information unusual.
4. control system as claimed in claim 1 or 2 is characterized in that, the described control system of answering also comprises: the setup unit that is connected with the first acquiring unit signal is used for setting described Authorized operation information for the user.
5. control system as claimed in claim 4 is characterized in that, described control system also comprises: with setup unit signal connectivity verification unit, be used for verifying whether described user is authorized user, if then enable described setup unit.
6. control system as claimed in claim 5 is characterized in that, described control system also comprises the display unit that is connected with the authentication unit signal with setup unit, and described display unit comprises verification operation display module and setting operation display module.
7. a control method is used for construction machinery and equipment, is provided with a plurality of sensors on the described construction machinery and equipment, it is characterized in that described control method comprises the steps:
A1, the status information that reports at sensor make construction machinery and equipment be in the action protection state when being unusual;
A2, when construction machinery and equipment is in the action protection state, obtain the Authorized operation information that the user sets;
A3, the status information that this sensor is reported according to described Authorized operation information lost efficacy, and make construction machinery and equipment withdraw from the action protection state.
8. control method as claimed in claim 7 is characterized in that, described Authorized operation information comprises: the existing condition information of the monitored object that the information that this sensor breaks down, the information of ignoring this sensor and/or this sensor are corresponding.
9. such as claim 7 or 8 described control methods, it is characterized in that described control method also comprised the steps: before steps A 1
A4, verify whether this user is authorized user, if then go to steps A 5;
A5, set described Authorized operation information by this user.
10. a construction machinery and equipment is characterized in that, described construction machinery and equipment is provided with each described control system of claim 1 to 6.
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| CN201210363472.4A CN102887448B (en) | 2012-09-26 | 2012-09-26 | Control system, control method and engineering machinery |
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| CN201210363472.4A CN102887448B (en) | 2012-09-26 | 2012-09-26 | Control system, control method and engineering machinery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742125A (en) * | 2013-12-30 | 2014-04-23 | 北京市三一重机有限公司 | Rotary drilling rig and safety control system and method thereof |
| CN106846010A (en) * | 2016-12-30 | 2017-06-13 | 上海华兴数字科技有限公司 | A kind of method of password authentication for being applied to corrective maintenance confirmation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02163289A (en) * | 1988-12-16 | 1990-06-22 | Sanwa Seiki Co Ltd | Setting method for interlocking characteristics of crane |
| JPH08198589A (en) * | 1995-01-25 | 1996-08-06 | Tadano Ltd | Hook block operating device in self-traveling crane |
| CN1137783A (en) * | 1993-11-08 | 1996-12-11 | 株式会社小松制作所 | Apparatus and method for controlling operation of reach tower crane |
| CN201224662Y (en) * | 2008-03-07 | 2009-04-22 | 武汉理工大学 | Non-load sensing type elevating capacity stopper |
| CN102180410A (en) * | 2011-01-26 | 2011-09-14 | 徐州赫思曼电子有限公司 | Safety protection device for hoisting equipment in improper working range |
| CN202022663U (en) * | 2011-05-05 | 2011-11-02 | 宜昌市微特电子设备有限责任公司 | Torque limiting device with automatic sensor cable breakage detection function |
| US20120152878A1 (en) * | 2010-12-17 | 2012-06-21 | Kobelco Cranes Co., Ltd. | Crane |
-
2012
- 2012-09-26 CN CN201210363472.4A patent/CN102887448B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02163289A (en) * | 1988-12-16 | 1990-06-22 | Sanwa Seiki Co Ltd | Setting method for interlocking characteristics of crane |
| CN1137783A (en) * | 1993-11-08 | 1996-12-11 | 株式会社小松制作所 | Apparatus and method for controlling operation of reach tower crane |
| JPH08198589A (en) * | 1995-01-25 | 1996-08-06 | Tadano Ltd | Hook block operating device in self-traveling crane |
| CN201224662Y (en) * | 2008-03-07 | 2009-04-22 | 武汉理工大学 | Non-load sensing type elevating capacity stopper |
| US20120152878A1 (en) * | 2010-12-17 | 2012-06-21 | Kobelco Cranes Co., Ltd. | Crane |
| CN102180410A (en) * | 2011-01-26 | 2011-09-14 | 徐州赫思曼电子有限公司 | Safety protection device for hoisting equipment in improper working range |
| CN202022663U (en) * | 2011-05-05 | 2011-11-02 | 宜昌市微特电子设备有限责任公司 | Torque limiting device with automatic sensor cable breakage detection function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742125A (en) * | 2013-12-30 | 2014-04-23 | 北京市三一重机有限公司 | Rotary drilling rig and safety control system and method thereof |
| CN103742125B (en) * | 2013-12-30 | 2017-01-25 | 北京市三一重机有限公司 | Rotary drilling rig and safety control system and method thereof |
| CN106846010A (en) * | 2016-12-30 | 2017-06-13 | 上海华兴数字科技有限公司 | A kind of method of password authentication for being applied to corrective maintenance confirmation |
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| CN102887448B (en) | 2015-04-22 |
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