CN103257906A - Storage card hot plug control method and device - Google Patents
Storage card hot plug control method and device Download PDFInfo
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- CN103257906A CN103257906A CN2012100394998A CN201210039499A CN103257906A CN 103257906 A CN103257906 A CN 103257906A CN 2012100394998 A CN2012100394998 A CN 2012100394998A CN 201210039499 A CN201210039499 A CN 201210039499A CN 103257906 A CN103257906 A CN 103257906A
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Abstract
The invention relates to a storage card hot plug control method and device. The control method includes step 100 receiving a card pulling command requesting for pulling out a storage card; step 110 detecting whether reading-writing operation exists in the storage card; step 120 keeping the locking state of the storage card by a locking mechanism on yes judgment and step 130 removing the locking state of the storage card by the locking mechanism on no judgment. When a mobile terminal receives the card pulling command, a detection and control circuit is utilized to detect whether the reading-writing operation is conducted on the storage card. When the reading-writing operation exists, the circuit controls the locking mechanism to enable the storage card to be kept at the locking state, and locking of the storage card is removed when the reading-writing operation does not exist in the storage card. The method and device avoids severe results of crash, data loss, system collapse and the like caused by the fact that a user cannot judge whether the storage card is in the reading-writing state and directly pulls the storage card from a card slot, and simultaneously brings good experience to the user.
Description
Technical field
The present invention relates to mobile memory card, more particularly, relate to a kind of storage card hot plug control method and device.
Background technology
Existing portable terminal for example mobile phone is generally handled storage card following several mode is arranged: a kind of is directly storage card to be put into mobile phone inside, forbid that the user plugs, another is mobile memory card, support user hot plug, the user can pull out under the situation of mobile phone power-on.Also having some is exactly only just can pull out storage card laying down under the situation of battery.
For first kind of storage card implementation, need not to plug thereby do not discuss, for second kind, owing to support hot plug, add the plug scheme of carrying out that current all systems all can't be real, tend in the damage that causes system crash, crashes or cause data file, the third implementation, because the necessary shutdown system of user, so the problem that second kind of situation brought can not occur, but during operating cost, inconvenience, thereby the user experiences bad.
Summary of the invention
The technical problem to be solved in the present invention is, the defective that can cause system crash, deadlock or data file to damage during at the above-mentioned mobile memory card hot plug of prior art provides a kind of storage card hot plug control method.
The technical problem to be solved in the present invention is, the defective that can cause system crash, deadlock or data file to damage during at the above-mentioned mobile memory card hot plug of prior art provides a kind of storage card hot plug control device.
The technical solution adopted for the present invention to solve the technical problems is: a kind of storage card hot plug control method is provided, comprises:
The card that pulls out that step 100, the request of reception are extracted storage card instructs;
In storage card hot plug control method of the present invention, described step 120 also comprises:
If there is read-write operation in storage card, then in the default time period, detect the read-write operation that whether exists described storage card at interval repeatedly with predetermined time, if there is not the read-write operation to described storage card, then remove the lock-out state to described storage card.
In storage card hot plug control method of the present invention, also comprise step 130,
If do not exist described storage card read-write operation, the lock-out state of mechanism to described storage card then unlocks.
In storage card hot plug control method of the present invention, described locking mechanism comprises first locking mechanism and second locking mechanism, also comprises before step 100:
When storage card inserted, first locking mechanism was carried out the pintle hook lock operation, and second locking mechanism keeps release conditions or carries out the pintle hook lock operation.
In storage card hot plug control method of the present invention,
First locking mechanism is carried out the pintle hook lock operation when storage card inserts, second locking mechanism keeps also comprising before the described step 120 under the situation of release conditions:
If there is read-write operation in storage card, then trigger the lock-out state of described second locking mechanism.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of storage card hot plug control device, comprising:
Locking mechanism is used for locking and is placed on the interior storage card of storage card draw-in groove;
Trigger circuit are used for receiving the card that pulls out of asking to extract storage card and instruct;
Detect and control circuit, whether have read-write operation for detection of storage card, and have read-write operation when storage card, keep the lock-out state of described locking mechanism.
In storage card hot plug control device of the present invention,
Described detection and control circuit also are used for:
Receiving described card when instruction of pulling out, when there is read-write operation in storage card, in the default time period, detect the read-write operation that whether exists described storage card at interval repeatedly with predetermined time, if there is not the read-write operation to described storage card, then remove the lock-out state to described storage card.
In storage card hot plug control device of the present invention, described detection and control circuit also are used for: receiving described card when instruction of pulling out, if do not exist described storage card read-write operation, the lock-out state of mechanism to described storage card then unlocks.
In storage card hot plug control device of the present invention, described locking mechanism comprises first locking mechanism and second locking mechanism; And when storage card inserted, described detection and control circuit were controlled described first locking mechanism and are carried out the pintle hook lock operation, and controlled described second locking mechanism maintenance release conditions or carry out the pintle hook lock operation.
In storage card hot plug control device of the present invention, first locking mechanism is carried out the pintle hook lock operation when storage card inserts, second locking mechanism keeps under the situation of release conditions,
Receiving described card when instruction of pulling out, if there is read-write operation in storage card, described detection and control circuit trigger the described second locking mechanism locking storing card.
Implement the present invention, has following beneficial effect: in the technical scheme of the present invention, when portable terminal receive pull out card instruction after, come the detection of stored card whether to have read-write operation by detection and control circuit, when having read-write operation, the control locking mechanism makes storage card remain on lock-out state, and when there is not read-write operation in storage card, removes the locking to storage card.Thereby avoid directly storage card being extracted serious consequences such as causing deadlock, loss of data, system crash from the storage card draw-in groove because the user can't judge whether storage card is in read-write state.Bring preferably to the user simultaneously and experience.
Another beneficial effect of the present invention is: the storage card hot plug control device of portable terminal is provided with two storage card locking mechanisms, second locking mechanism can have data stream when transmission conversion or remain lock-out state detecting between storage card and the main frame, avoid the user directly storage card to be extracted serious consequences such as causing deadlock, loss of data, system crash from the storage card draw-in groove when there is read-write operation in storage card.Bring preferably to the user simultaneously and experience.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of storage card hot plug control device of the present invention;
Fig. 2 is the structural representation of storage card hot plug control device according to an embodiment of the invention;
Fig. 3 A is the structural representation that has the portable terminal of storage card hot plug control device according to an embodiment of the invention;
Fig. 3 B is the structural representation of the locking mechanism in the storage card hot plug control device according to an embodiment of the invention;
Fig. 4 is the process flow diagram of storage card hot plug control method of the present invention;
Fig. 5 is the process flow diagram of storage card hot plug control method according to an embodiment of the invention;
Fig. 6 is the process flow diagram of storage card hot plug control method according to another embodiment of the present invention.
Embodiment
As shown in Figure 1, storage card hot plug control device of the present invention comprises locking mechanism 13, trigger circuit 14 and detection and control circuit 15.Wherein, locking mechanism 13 is used for locking and is placed on storage card 11 in the storage card draw-in groove 10, and storage card is pulled out when preventing from carrying out read-write operation.Trigger circuit 14 are used for receiving that request that the user sends extracts storage card pulls out card instruction, and to detecting and control circuit 15 sends and pulls out card signal and instruct to pass on this to pull out card.In a single day detection and control circuit 15 receive from trigger circuit 14 and pull out card signal, be whether the data stream transmission is arranged between detection of stored card 11 and the main frame 20, when data stream is transmitted, determine that there is read-write operation in storage card, then control locking mechanism 13 and make it remain lock-out state.When not having the data stream transmission, determine the current read-write operation that do not exist of storage card, then control locking mechanism 13 and make its releasing to the lock-out state of storage card.
In an embodiment of the present invention, detection and control circuit 15 are after there is read-write operation in definite storage card, in the default time period (for example 2-5 second), detect the read-write operation that whether exists described storage card repeatedly with predetermined time interval (for example 0.5 second), if there is not the read-write operation to described storage card, then controls locking mechanism 13 and make its releasing to the lock-out state of storage card.
As shown in Figure 2, as improvement, in one embodiment of this invention, locking mechanism 13 comprises first locking mechanism 131 and second locking mechanism 132.
Relevant second locking mechanism 132:
In one embodiment, second locking mechanism 132 is in the lock state under the situation of start after storage card 11 inserts storage card draw-in groove 10, and is in release conditions under the situation of shutdown.Locking, power down release namely power on.In this case, under open state, when needs take out storage card, user's pressing release-push, trigger circuit 14 receive to pull out card instruction and be forwarded to and detect and control circuit 15, detect and whether control circuit 15 has data stream to transmit between detection of stored card 11 and the main frame 20 immediately, when data stream is transmitted, determine that there is read-write operation in storage card, then detection and control circuit 15 control first locking mechanisms 131 and second locking mechanism 132 make it remain lock-out state.When not having read-write operation or when detecting read-write operation and finishing, then detect and control circuit 15 control first locking mechanisms 131 and second locking mechanism 132 make it remove lock-out state to storage card, thereby the user can extract storage card 11.
In another embodiment, second locking mechanism 132 is in release conditions after storage card 11 inserts storage card draw-in groove 10, only receive to pull out the card instruction and detect storage card when having read-write operation under open state, just carry out the pintle hook lock operation, be converted to lock-out state.In this case, under open state, when needs take out storage card, user's pressing release-push, trigger circuit 14 receive to pull out card instruction and be forwarded to and detect and control circuit 15, detect and whether control circuit 15 has data stream to transmit between detection of stored card 11 and the main frame 20 immediately, when data stream is transmitted, determine that there is read-write operation in storage card, then detection and control circuit 15 controls second locking mechanism 132 make it be converted to lock-out state.And during read-write operation, make first locking mechanism 131 and second locking mechanism 132 remain on lock-out state.When read-write operation finished, detection and control circuit 15 control first locking mechanisms 131 and second locking mechanism 132 made its releasing to the lock-out state of storage card, thereby the user can extract storage card 11.
As shown in Figure 3A, portable terminal 200 is provided with the storage card hot plug control device according to an embodiment of the invention, comprising the locking mechanism 13 that is arranged on the storage card draw-in groove, the detection and the control circuit 15 that communicate to connect with locking mechanism 13, and be connected in and detect and the trigger circuit 14 of control circuit 15.Wherein, detection and control circuit 15 also are connected with main-machine communication.Storage card 11 can withdraw from and insert in the storage card draw-in groove along the direction of arrow.
In the embodiment shown in Fig. 3 B, storage card 11 can be in storage card draw-in groove 10 move left and right in the direction of arrow B, to withdraw from or to enter storage card draw-in groove 10.First locking mechanism 131 for example comprises elastomeric element and catch (not shown) thereof, under off-mode, when user's pressing release-push, first locking mechanism 131 is converted to release conditions, for example catch is removed, and elastomeric element produces outside tension force, and desire is released the storage card draw-in groove with storage card.Second locking mechanism 132 is the locking mechanisms that can move up and down in the direction of arrow A.For example, under open state, the action of above-mentioned catch and locking mechanism all is controlled by detection and control circuit 15.
In other embodiments of the invention, release-push can be physical button.Physical button can be the keyswitch that the card instruction is pulled out in input that is exclusively used in that arranges separately.
As shown in Figure 4, in storage card hot plug control method of the present invention, in step 100, what storage card 11 was extracted in the request of receiving of the trigger circuit 14 in the portable terminal 200 pulls out card instruction, and to detecting and control circuit 15 sends and pulls out card signal and instruct to pass on this to pull out card.In step 110, whether detection and control circuit 15 detection of stored cards exist read-write operation, if then enter step 120; If not, then enter step 130.In step 120, when there is read-write operation in storage card, detect and control circuit 15 control locking mechanisms 13 make it remain lock-out state.In step 130, when there is not read-write operation in storage card, detect and control circuit 15 control locking mechanisms 13, make its releasing to the lock-out state of storage card.In addition, after the step 120, return step 110 again.For example, detection and control circuit 15 are after there is read-write operation in definite storage card, in the default time period (for example 2-5 second), detect the read-write operation that whether exists described storage card repeatedly with predetermined time interval (for example 0.5 second), if there is not the read-write operation to storage card, then controls locking mechanism 13 and make its releasing to the lock-out state of storage card.
As shown in Figure 5, in the storage card hot plug control method of one embodiment of the invention, in step 80, storage card 11 is inserted into storage card draw-in groove 10.Subsequently, in step 90, first locking mechanism 131 is carried out the pintle hook lock operation, and second locking mechanism 132 is also carried out the pintle hook lock operation simultaneously.Be that first locking mechanism 131 and second locking mechanism 132 all were in the lock state after storage card inserted, storage card is locked.In step 100, what storage card 11 was extracted in the request of receiving of the trigger circuit 14 in the portable terminal 200 pulls out card instruction, and to detecting and control circuit 15 sends and pulls out card signal and instruct to pass on this to pull out card.In step 110, whether detection and control circuit 15 detection of stored cards exist read-write operation, if then enter step 120; If not, then enter step 130.In step 120, when there is read-write operation in storage card, detect and control circuit 15 control first locking mechanism 131 and second locking mechanisms 132, make it remain lock-out state.In step 130, when there is not read-write operation in storage card, detect and control circuit 15 control locking mechanisms, 13 control first locking mechanisms 131 and second locking mechanism 132 make it remove lock-out state to storage card.In addition, after the step 120, return step 110 again.For example, detection and control circuit 15 are after there is read-write operation in definite storage card, in the default time period (for example 2-5 second), detect the read-write operation that whether exists described storage card repeatedly with predetermined time interval (for example 0.5 second), if there is not the read-write operation to described storage card, then controls first locking mechanism 131 and second locking mechanism 132 and make its releasing to the lock-out state of storage card.
As shown in Figure 6, in the storage card hot plug control method of another embodiment of the present invention, in step 80, storage card 11 is inserted into storage card draw-in groove 10.Subsequently, in step 90 ', first locking mechanism 131 is carried out the pintle hook lock operation, and second locking mechanism 132 keeps release conditions simultaneously.Be that first locking mechanism 131 was in the lock state after storage card inserted, second locking mechanism 132 is in release conditions, and storage card is by 131 lockings of first locking mechanism.In step 100, what storage card 11 was extracted in the request of receiving of the trigger circuit 14 in the portable terminal 200 pulls out card instruction, and to detecting and control circuit 15 sends and pulls out card signal and instruct to pass on this to pull out card.In step 110, whether detection and control circuit 15 detection of stored cards exist read-write operation, if then enter step 115; If not, then enter step 130.
In step 115, detect and control circuit 15 triggerings second locking mechanism 132, make it carry out pintle hook lock operation, so that second locking mechanism 132 is in the lock state.Subsequently, enter step 120, detect and control circuit 15 control first locking mechanism 131 and second locking mechanisms 132, make it remain lock-out state.After the step 120, enter step 110 ', whether detection and control circuit 15 detection of stored card again exist read-write operation.If then return step 120; If not, then enter step 130.
In step 130, when there is not read-write operation in storage card, detect and control circuit 15 control first locking mechanisms 131 and second locking mechanism 132 make it remove lock-out state to storage card.
In addition, after the step 120, return step 110 again '.For example, detection and control circuit 15 are after there is read-write operation in definite storage card, in the default time period (for example 2-5 second), detect the read-write operation that whether exists described storage card repeatedly with predetermined time interval (for example 0.5 second), if there is not the read-write operation to described storage card, then controls locking mechanism 13 and make its releasing to the lock-out state of storage card.
The present invention describes by several specific embodiments, it will be appreciated by those skilled in the art that without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, at particular condition or concrete condition, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall in the claim scope of the present invention.
Claims (10)
1. a storage card hot plug control method is characterized in that, comprising:
The card that pulls out that step 100, the request of reception are extracted storage card instructs;
Step 110, whether the detection of stored card exists read-write operation;
Step 120 if there is read-write operation in storage card, then keeps the lock-out state of locking mechanism.
2. storage card hot plug control method according to claim 1 is characterized in that described step 120 also comprises:
If there is read-write operation in storage card, then in the default time period, detect the read-write operation that whether exists described storage card at interval repeatedly with predetermined time, if there is not the read-write operation to described storage card, then remove the lock-out state to described storage card.
3. storage card hot plug control method according to claim 1 is characterized in that, also comprises step 130,
If do not exist described storage card read-write operation, the lock-out state of mechanism to described storage card then unlocks.
4. storage card hot plug control method according to claim 1, described locking mechanism comprises first locking mechanism and second locking mechanism, it is characterized in that, also comprises before step 100:
When storage card inserted, first locking mechanism was carried out the pintle hook lock operation, and second locking mechanism keeps release conditions or carries out the pintle hook lock operation.
5. storage card hot plug control method according to claim 4 is characterized in that,
First locking mechanism is carried out the pintle hook lock operation when storage card inserts, second locking mechanism keeps also comprising before the described step 120 under the situation of release conditions:
If there is read-write operation in storage card, then trigger the lock-out state of described second locking mechanism.
6. a storage card hot plug control device is characterized in that, comprising:
Locking mechanism is used for locking and is placed on the interior storage card of storage card draw-in groove;
Trigger circuit are used for receiving the card that pulls out of asking to extract storage card and instruct;
Detect and control circuit, whether have read-write operation for detection of storage card, and have read-write operation when storage card, keep the lock-out state of described locking mechanism.
7. storage card hot plug control device according to claim 6 is characterized in that,
Described detection and control circuit also are used for:
Receiving described card when instruction of pulling out, when there is read-write operation in storage card, in the default time period, detect the read-write operation that whether exists described storage card at interval repeatedly with predetermined time, if there is not the read-write operation to described storage card, then remove the lock-out state to described storage card.
8. storage card hot plug control device according to claim 6, it is characterized in that, described detection and control circuit also are used for: receiving described card when instruction of pulling out, if do not exist described storage card read-write operation, the lock-out state of mechanism to described storage card then unlocks.
9. storage card hot plug control device according to claim 6 is characterized in that, described locking mechanism comprises first locking mechanism and second locking mechanism; And when storage card inserted, described detection and control circuit were controlled described first locking mechanism and are carried out the pintle hook lock operation, and controlled described second locking mechanism maintenance release conditions or carry out the pintle hook lock operation.
10. storage card hot plug control device according to claim 9 is characterized in that, first locking mechanism is carried out the pintle hook lock operation when storage card inserts, second locking mechanism keeps under the situation of release conditions,
Receiving described card when instruction of pulling out, if there is read-write operation in storage card, described detection and control circuit trigger the described second locking mechanism locking storing card.
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CN201210039499.8A CN103257906B (en) | 2012-02-21 | 2012-02-21 | Storage card hot plug control method and device |
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CN201210039499.8A CN103257906B (en) | 2012-02-21 | 2012-02-21 | Storage card hot plug control method and device |
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CN103257906B CN103257906B (en) | 2016-04-06 |
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Cited By (4)
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CN106445844A (en) * | 2016-11-25 | 2017-02-22 | 广东远峰电子科技股份有限公司 | Data protection method and device for expansion card |
CN106973089A (en) * | 2017-03-16 | 2017-07-21 | 北京索瑞特医学技术有限公司 | Data processing method and device |
CN108170564A (en) * | 2017-12-13 | 2018-06-15 | 浙江大华技术股份有限公司 | A kind of method and device for monitoring mobile hard disk hot plug situation |
CN115033512A (en) * | 2022-04-29 | 2022-09-09 | 浙江华锐捷技术有限公司 | Method for preventing hard disk from hot plug, vehicle-mounted monitoring system and computer storage medium |
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CN115033512A (en) * | 2022-04-29 | 2022-09-09 | 浙江华锐捷技术有限公司 | Method for preventing hard disk from hot plug, vehicle-mounted monitoring system and computer storage medium |
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