CN104089635A - Device for detecting opening or closing of cover - Google Patents
Device for detecting opening or closing of cover Download PDFInfo
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- CN104089635A CN104089635A CN201410364239.7A CN201410364239A CN104089635A CN 104089635 A CN104089635 A CN 104089635A CN 201410364239 A CN201410364239 A CN 201410364239A CN 104089635 A CN104089635 A CN 104089635A
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Abstract
The invention discloses a device for detecting opening or closing of a cover. The device is used for a combination with a container and the cover. The device comprises a detection unit, a control signal generation unit, a state reminding unit and a power supply unit. The detection unit is used for detecting opening or closing between the cover and the container and generating a detection signal. The control signal generation unit is used for generating a control signal according to the detection signal. The state reminding unit is used for generating a reminding signal according to the control signal and displaying the opening or closing state between the cover and the container. The power supply unit is used for supplying power to the detection device. The device for detecting opening or closing of the cover can detect the opening or closing state of the cover and remind a user, so that safety of a packaging case is improved.
Description
Technical field
The present invention relates to a kind of pick-up unit for the combination with container and lid, relate in particular to a kind of Cover opening or closed pick-up unit.
Background technology
At present, for transporting the packing case of banknote, be disposable, pure mechanical snap is stuck, when opening the box, need to destroy chest, and cost compare is large, and it is cumbersome to unpack.In order to save the cost of currency logistics, and realize intellectuality, adopt packet of electrons vanning to replace traditional packing case for currency logistics, can repeatedly use, and open locking needs authentication to realize security.But for can be nonexpondable packet of electrons vanning, particularly when loading valuables, need especially to user reminding lid whether in closed condition, to improve the security of packing case.
Summary of the invention
For solving the existing problem of above-mentioned prior art, a kind of Cover opening or the closed pick-up unit of providing of the present invention, can detect the state of Cover opening or closure and send prompting to user, has improved the security of packing case.
To achieve these goals, the present invention has adopted following technical scheme:
Cover opening or a closed pick-up unit, the combination for container and lid, comprising:
One detecting unit, for detection of closure or openness between described lid and container, produces a detection signal;
One control signal generation unit, produces a control signal according to described detection signal;
One state reminding unit, produces an alerting signal according to described control signal, shows closure or openness state between described lid and container;
One power supply unit, provides power supply to described pick-up unit;
When described Cover opening, described detecting unit produces the first detection signal, described control signal generation unit produces the first control signal according to described the first detection signal, described state reminding unit produces the first alerting signal according to described the first control signal, shows that described lid is opening; When described lid is closed, described detecting unit produces the second detection signal, described control signal generation unit produces the second control signal according to described the second detection signal, described state reminding unit produces the second alerting signal according to described the second control signal, shows that described lid is closure state.
Preferably, described detecting unit comprises a photoswitch circuit, described photoswitch circuit comprises a light-emitting tube and a light receiving tube, according to described light receiving tube, from described light-emitting tube, receive light state, described photoswitch circuit produces a voltage signal and is input in described control signal generation unit; Described control signal generation unit comprises a voltage comparator circuit, and described control signal is high level or the low level being produced by described voltage comparator circuit.
Preferably, described light-emitting tube comprises a light emitting diode, and the negative pole of described light emitting diode is electrically connected with ground, and positive pole is connected with a power supply by the first resistance; Described light receiving tube comprises a photodiode, the positive pole of described photodiode is electrically connected with ground, negative pole is connected with a power supply by the second resistance, wherein, connects described voltage signal be input to described control signal generation unit from the negative pole of described photodiode; Described voltage comparator circuit comprises a comparer, and the normal phase input end of described comparer receives the voltage signal that described photoswitch circuit produces; The inverting input of described comparer is connected with a reference voltage by the 3rd resistance, and the inverting input of described comparer is also electrically connected by the 4th resistance and ground, by the first electric capacity and ground, is electrically connected; The output terminal of described comparer is connected to described state reminding unit; When described photodiode received from the light time of described light emitting diode transmitting, described photoswitch circuit produces the normal phase input end that the first voltage is input to described comparer, described the first voltage is greater than described reference voltage, the output terminal output high level of described comparer; When described photodiode did not receive from the light time of described light emitting diode transmitting, described photoswitch circuit produces the normal phase input end that second voltage is input to described comparer, described second voltage is less than described reference voltage, the output terminal output low level of described comparer.
Preferably, described light-emitting tube and light receiving tube are arranged side by side in described lid simultaneously, in described container, are provided with barrier sheet; When described Cover opening, described light receiving tube cannot receive the light of described light-emitting tube transmitting; When described lid is closed, by the reflection of described barrier sheet, described light receiving tube receives the light of described light-emitting tube transmitting.
Preferably, described light-emitting tube and light receiving tube are arranged side by side in described container simultaneously, in described lid, are provided with barrier sheet; When described Cover opening, described light receiving tube cannot receive the light light of described light-emitting tube transmitting; When described lid is closed, by the reflection of described barrier sheet, described light receiving tube receives the light of described light-emitting tube transmitting;
Preferably, described light-emitting tube and light receiving tube are relatively arranged on respectively in described lid and container, and when described Cover opening, described light receiving tube cannot receive the light of described light-emitting tube transmitting; When described lid is closed, described light receiving tube receives the light of described light-emitting tube transmitting.
Preferably, described detecting unit comprises a Hall element and a magnetisable material, and described Hall element and magnetisable material are relatively arranged on respectively in described lid and container, and described Hall element is also used as described control signal generation unit simultaneously; When described Cover opening, described magnetisable material is away from described Hall element, and described Hall element produces tertiary voltage and is input to described state reminding unit; When described lid is closed, described magnetisable material is near described Hall element, and described Hall element produces the 4th voltage and is input to described state reminding unit.
Preferably, described magnetisable material is magnet or electromagnetic structure body.
Preferably, described lid and container coordinate closure or openness by an electronic lock, and described electronic lock is controlled unit controls by an electronic lock; Wherein, described electronic lock is controlled unit and is connected to described state reminding unit, receives described alerting signal; Described power supply unit is integrated in described electronic lock and controls in unit.
Preferably, described state reminding unit comprises a light-emitting device and/or a sound-producing device.
Preferably, described state reminding unit comprises a LED lamp, and the positive pole of described LED lamp is connected to a power supply by the 5th resistance, and negative pole is connected to the output terminal of described control signal generation unit; The negative pole of described LED lamp is also connected to described electronic lock and controls unit.
Beneficial effect:
Pick-up unit provided by the invention can detect the state of Cover opening or closure and send prompting to user, has improved the security of packing case; And this pick-up unit precision is high, simple in structure, cheap, is easy to industrialization.
Accompanying drawing explanation
The structured flowchart of the pick-up unit that Fig. 1 provides for the specific embodiment of the invention.
The circuit diagram of the pick-up unit that Fig. 2 provides for the embodiment of the present invention 1.
The circuit diagram of the pick-up unit that Fig. 3 provides for the embodiment of the present invention 2.
Embodiment
In order to set forth better technical characterstic of the present invention and structure, below in conjunction with embodiment and accompanying drawing thereof, describe the present invention.
Consult Fig. 1, present embodiment pick-up unit is for packet of electrons vanning, and electronic packaging case comprises lid and container, between lid and container, by an electronic lock, coordinates closure or openness, and described electronic lock is controlled unit 5 by an electronic lock and controlled.This pick-up unit comprises: detecting unit 1, for detection of closure or openness between lid and container, produces a detection signal; Control signal generation unit 2, produces a control signal according to described detection signal; State reminding unit 3, produces an alerting signal according to described control signal, shows closure or openness state between described lid and container; Power supply unit 4, provides power supply to described pick-up unit.Wherein, described electronic lock is controlled unit 4 and is connected to described state reminding unit 3, receives described alerting signal; And described power supply unit 4 is integrated in described electronic lock and controls in unit 5.
Embodiment 1
In the present embodiment, detecting unit 1 comprises a photoswitch circuit, and this photoswitch circuit comprises a light-emitting tube and a light receiving tube; Control signal generation unit 2 comprises a voltage comparator circuit.Particularly, as shown in Figure 2, described light-emitting tube comprises a light emitting diode D1, and the negative pole of described light emitting diode D1 is electrically connected with ground, and positive pole is connected with a power supply V1 by the first resistance R 1.Described light receiving tube comprises a photodiode D2, the positive pole of described photodiode D2 is electrically connected with ground, negative pole is connected with a power supply V2 by the second resistance R 2, wherein, connects a voltage signal be input to control signal generation unit 2 from the negative pole of described photodiode D2.Described voltage comparator circuit comprises a comparer OP, and the normal phase input end of described comparer OP receives the voltage signal that described photoswitch circuit produces, and is connected to the negative pole of photodiode D2; The inverting input of described comparer OP is connected with a reference voltage V 3 by the 3rd resistance R 3, and the inverting input of described comparer OP is also electrically connected by the 4th resistance R 4 and ground, by the first capacitor C 1 and ground, is electrically connected; The output terminal of described comparer OP is connected to described state reminding unit 3.Described state reminding unit 3 comprises a LED lamp D3, and the positive pole of described LED lamp D3 is connected to a power supply V4 by the 5th resistance R 5, and negative pole is connected to the output terminal of described control signal generation unit 2, is connected to the output terminal of described comparer OP; The negative pole of described LED lamp D3 also connects a signal OUTPUT, is connected to electronic lock and controls unit 5.In the present embodiment, power supply V1, V2, V3 and V4 are provided by power supply unit 4, and power supply unit 4 is integrated in described electronic lock control unit 5.
In the present embodiment, light-emitting tube and light receiving tube are arranged side by side in lid simultaneously, are provided with barrier sheet (barrier sheet can be served as by wall of a container, also can arrange in addition on wall of a container) in described container.When described Cover opening, described photodiode D2 cannot receive the light of described light emitting diode D1 transmitting, and photodiode D2 is in cut-off state.Described photoswitch circuit produces the normal phase input end that the first voltage is input to described comparer OP, described the first voltage is greater than described reference voltage V 3, the output terminal output high level of described comparer OP is input to the negative pole of LED lamp D3, and now LED lamp D3 extinguishes, corresponding Cover opening state.When described lid is closed, by the reflection of described barrier sheet, described photodiode D2 receives the light of described light emitting diode D1 transmitting, and photodiode D2 is in conducting state.Described photoswitch circuit produces the normal phase input end that second voltage is input to described comparer OP, described second voltage is less than described reference voltage V 3, the output terminal output low level of described comparer OP is input to the negative pole of LED lamp D3, and now LED lamp D3 is shinny, corresponding lid closure state.
In some other embodiment, light-emitting tube and light receiving tube also can make to be arranged side by side in described container simultaneously, are provided with barrier sheet (barrier sheet can be served as by the edge of lid, also can arrange in addition on lid) in described lid; When described Cover opening, photodiode D2 cannot receive the light of described light emitting diode D1 transmitting; When described lid is closed, by the reflection of described barrier sheet, described photodiode D2 receives the light of described light emitting diode D1 transmitting.Or, light-emitting tube and light receiving tube are relatively arranged on respectively in described lid and container, when described Cover opening, photodiode D2 cannot receive the light of described light emitting diode D1 transmitting; When described lid is closed, photodiode D2 can receive the light of described light emitting diode D1 transmitting.
In the present embodiment, alarm set adopts LED lamp, can effectively show its state position and working condition, is convenient to artificial observation and detection; In a further embodiment, can also adopt sound-producing device to replace LED lamp D3 wherein as alarm set, when Cover opening, the sound-producing device prompting of sounding; When lid is closed, sound-producing device is not sounded.Or: add in the present embodiment sound-producing device, adopt mode luminous and that sounding is reminded simultaneously.
Embodiment 2
In the present embodiment, detecting unit 1 comprises a Hall element and a magnetisable material, and described Hall element and magnetisable material are relatively arranged on respectively in described lid and container, and described Hall element is also used as control signal generation unit 2 simultaneously.Particularly, as shown in Figure 2, the power pins VCC of Hall element H is connected to a power supply V5, and power pins VCC is also electrically connected by the second capacitor C 2 and ground; The grounding pin GND of Hall element H is electrically connected with ground, and output pin OUT is connected to state reminding unit 3.State reminding unit 3 comprises a LED lamp D4, and the positive pole of described LED lamp D4 is connected to power supply V5 by the 6th resistance R 6, and negative pole is connected to the output terminal of described control signal generation unit 2, i.e. the output pin OUT of Hall element H; The negative pole of described LED lamp D4 also connects a signal OUTPUT, is connected to electronic lock and controls unit 5.In the present embodiment, power supply V5 is provided by power supply unit 4, and power supply unit 4 is integrated in described electronic lock control unit 5.Wherein, the marking current waking up of reminding unit 3 is very little, and the speed of waking up is very fast, all, in microampere and millisecond rank, can not produce and pauses or postpone.In the present embodiment, described magnetisable material is a magnet, certainly, in some other embodiment, also can replace the magnet in the present embodiment with electromagnetic structure body.
When described Cover opening, described magnetisable material is away from described Hall element H, and the output pin OUT of described Hall element H output high level is input to the negative pole of LED lamp D4, and now LED lamp D4 extinguishes, corresponding Cover opening state.When described lid is closed, described magnetisable material is near described Hall element H, and the output pin OUT output low level of described Hall element H is input to the negative pole of LED lamp D4, and now LED lamp D4 is shinny, corresponding lid closure state.
In the present embodiment, alarm set adopts LED lamp, can effectively show its state position and working condition, is convenient to artificial observation and detection; In a further embodiment, can also adopt sound-producing device to replace LED lamp D3 wherein as alarm set, when Cover opening, the sound-producing device prompting of sounding; When lid is closed, sound-producing device is not sounded.Or: add in the present embodiment sound-producing device, adopt mode luminous and that sounding is reminded simultaneously.
In sum, pick-up unit provided by the invention can detect the state of Cover opening or closure and send prompting to user, has improved the security of packing case; And this pick-up unit precision is high, simple in structure, cheap, is easy to industrialization; And this pick-up unit carries out the impact that position probing is not subject to temperature, gas, humidity and deformation, more good is its life-span of times influence that is not subject to mechanical motion.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Although the present invention is described in detail and shows with reference to its exemplary embodiment, but will be understood by those skilled in the art that, in the situation that do not depart from the spirit and scope of the present invention that are defined by the claims, can carry out to it various changes of form and details.
Claims (11)
1. Cover opening or a closed pick-up unit, the combination for container and lid, is characterized in that, comprising:
One detecting unit, for detection of closure or openness between described lid and container, produces a detection signal;
One control signal generation unit, produces a control signal according to described detection signal;
One state reminding unit, produces an alerting signal according to described control signal, shows closure or openness state between described lid and container;
One power supply unit, provides power supply to described pick-up unit;
When described Cover opening, described detecting unit produces the first detection signal, described control signal generation unit produces the first control signal according to described the first detection signal, described state reminding unit produces the first alerting signal according to described the first control signal, shows that described lid is opening; When described lid is closed, described detecting unit produces the second detection signal, described control signal generation unit produces the second control signal according to described the second detection signal, described state reminding unit produces the second alerting signal according to described the second control signal, shows that described lid is closure state.
2. pick-up unit according to claim 1, it is characterized in that, described detecting unit comprises a photoswitch circuit, described photoswitch circuit comprises a light-emitting tube and a light receiving tube, the light state receiving from described light-emitting tube according to described light receiving tube, described photoswitch circuit produces a voltage signal and is input in described control signal generation unit; Described control signal generation unit comprises a voltage comparator circuit, and described control signal is high level or the low level being produced by described voltage comparator circuit.
3. pick-up unit according to claim 2, is characterized in that,
Described light-emitting tube comprises a light emitting diode, and the negative pole of described light emitting diode is electrically connected with ground, and positive pole is connected with a power supply by the first resistance; The positive pole of described auroral poles pipe is electrically connected with ground, negative pole is connected closed tube by the second resistance with a power supply and comprises a photodiode, described photoelectricity two connects, and wherein, connects described voltage signal be input to described control signal generation unit from the negative pole of described photodiode;
Described voltage comparator circuit comprises a comparer, and the normal phase input end of described comparer receives the voltage signal that described photoswitch circuit produces; The inverting input of described comparer is connected with a reference voltage by the 3rd resistance, and the inverting input of described comparer is also electrically connected by the 4th resistance and ground, by the first electric capacity and ground, is electrically connected; The output terminal of described comparer is connected to described state reminding unit;
When described photodiode received from the light time of described light emitting diode transmitting, described photoswitch circuit produces the normal phase input end that the first voltage is input to described comparer, described the first voltage is greater than described reference voltage, the output terminal output high level of described comparer; When described photodiode did not receive from the light time of described light emitting diode transmitting, described photoswitch circuit produces the normal phase input end that second voltage is input to described comparer, described second voltage is less than described reference voltage, the output terminal output low level of described comparer.
4. pick-up unit according to claim 3, is characterized in that, described light-emitting tube and light receiving tube are arranged side by side in described lid simultaneously, in described container, are provided with barrier sheet; When described Cover opening, described light receiving tube cannot receive the light of described light-emitting tube transmitting; When described lid is closed, by the reflection of described barrier sheet, described light receiving tube receives the light of described light-emitting tube transmitting.
5. pick-up unit according to claim 3, is characterized in that, described light-emitting tube and light receiving tube are arranged side by side in described container simultaneously, in described lid, are provided with barrier sheet; When described Cover opening, described light receiving tube cannot receive the light of described light-emitting tube transmitting; When described lid is closed, by the reflection of described barrier sheet, described light receiving tube receives the light of described light-emitting tube transmitting.
6. pick-up unit according to claim 3, is characterized in that, described light-emitting tube and light receiving tube are relatively arranged on respectively in described lid and container, and when described Cover opening, described light receiving tube cannot receive the light of described light-emitting tube transmitting; When described lid is closed, described light receiving tube receives the light of described light-emitting tube transmitting.
7. pick-up unit according to claim 1, it is characterized in that, described detecting unit comprises a Hall element and a magnetisable material, and described Hall element and magnetisable material are relatively arranged on respectively in described lid and container, and described Hall element is also used as described control signal generation unit simultaneously;
When described Cover opening, described magnetisable material is away from described Hall element, and described Hall element produces tertiary voltage and is input to described state reminding unit; When described lid is closed, described magnetisable material is near described Hall element, and described Hall element produces the 4th voltage and is input to described state reminding unit.
8. pick-up unit according to claim 1, is characterized in that, described magnetisable material is magnet or electromagnetic structure body.
9. according to the arbitrary described pick-up unit of claim 1-8, it is characterized in that, described lid and container coordinate closure or openness by an electronic lock, and described electronic lock is controlled unit controls by an electronic lock; Wherein, described electronic lock is controlled unit and is connected to described state reminding unit, receives described alerting signal; Described power supply unit is integrated in described electronic lock and controls in unit.
10. pick-up unit according to claim 9, is characterized in that, described state reminding unit comprises a light-emitting device and/or a sound-producing device.
11. pick-up units according to claim 10, is characterized in that, described state reminding unit comprises a LED lamp, and the positive pole of described LED lamp is connected to a power supply by the 5th resistance, and negative pole is connected to the output terminal of described control signal generation unit; The negative pole of described LED lamp is also connected to described electronic lock and controls unit.
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CN201410364239.7A CN104089635A (en) | 2014-07-28 | 2014-07-28 | Device for detecting opening or closing of cover |
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CN201410364239.7A CN104089635A (en) | 2014-07-28 | 2014-07-28 | Device for detecting opening or closing of cover |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109141481A (en) * | 2018-09-30 | 2019-01-04 | 广州市捷众智能科技有限公司 | A kind of environmental parameter detection circuit |
CN111740180A (en) * | 2020-06-30 | 2020-10-02 | 上海瓶安新能源科技有限公司 | Battery box illegal opening monitoring device based on photoelectric switch |
CN115096339A (en) * | 2022-06-29 | 2022-09-23 | 联宝(合肥)电子科技有限公司 | Circuit for detecting opening of cover of electronic equipment and electronic equipment |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020036475A1 (en) * | 2000-09-18 | 2002-03-28 | Kiyoshi Okamoto | Opening and closing control device for cover |
CN2494584Y (en) * | 2001-07-25 | 2002-06-05 | 力捷电脑股份有限公司 | Cover-lifting controlled power open-and-close device of scanner |
CN1862733A (en) * | 2005-12-31 | 2006-11-15 | 四川道亨计算机软件有限责任公司 | Apparatus lid opening detecting device and detecting method |
CN101686792A (en) * | 2007-07-09 | 2010-03-31 | Bsh博世和西门子家用器具有限公司 | Domestic appliance with a self-diagnosing door lock position detection device |
CN201532693U (en) * | 2009-11-12 | 2010-07-21 | 昆明理工大学 | Infrared electronic alarm |
CN203365319U (en) * | 2013-07-23 | 2013-12-25 | 深圳市安瑞科科技有限公司 | Infrared detection device for transparent medicine bottle |
CN103630149A (en) * | 2012-08-20 | 2014-03-12 | 艾默生过程控制流量技术有限公司 | Method of transmitter for controlling light-emitting unit of transmitter |
CN204101057U (en) * | 2014-07-28 | 2015-01-14 | 深圳宝嘉电子设备有限公司 | Cover opening or closed pick-up unit |
-
2014
- 2014-07-28 CN CN201410364239.7A patent/CN104089635A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020036475A1 (en) * | 2000-09-18 | 2002-03-28 | Kiyoshi Okamoto | Opening and closing control device for cover |
CN2494584Y (en) * | 2001-07-25 | 2002-06-05 | 力捷电脑股份有限公司 | Cover-lifting controlled power open-and-close device of scanner |
CN1862733A (en) * | 2005-12-31 | 2006-11-15 | 四川道亨计算机软件有限责任公司 | Apparatus lid opening detecting device and detecting method |
CN101686792A (en) * | 2007-07-09 | 2010-03-31 | Bsh博世和西门子家用器具有限公司 | Domestic appliance with a self-diagnosing door lock position detection device |
CN201532693U (en) * | 2009-11-12 | 2010-07-21 | 昆明理工大学 | Infrared electronic alarm |
CN103630149A (en) * | 2012-08-20 | 2014-03-12 | 艾默生过程控制流量技术有限公司 | Method of transmitter for controlling light-emitting unit of transmitter |
CN203365319U (en) * | 2013-07-23 | 2013-12-25 | 深圳市安瑞科科技有限公司 | Infrared detection device for transparent medicine bottle |
CN204101057U (en) * | 2014-07-28 | 2015-01-14 | 深圳宝嘉电子设备有限公司 | Cover opening or closed pick-up unit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109141481A (en) * | 2018-09-30 | 2019-01-04 | 广州市捷众智能科技有限公司 | A kind of environmental parameter detection circuit |
CN111740180A (en) * | 2020-06-30 | 2020-10-02 | 上海瓶安新能源科技有限公司 | Battery box illegal opening monitoring device based on photoelectric switch |
CN115096339A (en) * | 2022-06-29 | 2022-09-23 | 联宝(合肥)电子科技有限公司 | Circuit for detecting opening of cover of electronic equipment and electronic equipment |
CN115096339B (en) * | 2022-06-29 | 2024-07-02 | 联宝(合肥)电子科技有限公司 | Circuit for detecting opening of cover body of electronic equipment and electronic equipment |
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