CN102360411A - Uncovering locking method and device and communication device - Google Patents
Uncovering locking method and device and communication device Download PDFInfo
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- CN102360411A CN102360411A CN2011103147803A CN201110314780A CN102360411A CN 102360411 A CN102360411 A CN 102360411A CN 2011103147803 A CN2011103147803 A CN 2011103147803A CN 201110314780 A CN201110314780 A CN 201110314780A CN 102360411 A CN102360411 A CN 102360411A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen
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Abstract
The invention provides an uncovering locking method and device and a communication device. The communication device comprises a microswitch, a lithium battery, a storage cell and a micro control unit, wherein the storage cell is used for storing enciphered data of the communication device; the lithium battery is used for supplying electricity to the storage cell; the microswitch is used for switching off a link between the lithium battery and the storage cell for interrupting the lithium battery to supply electricity to the storage cell when detecting that a cover of the communication device is opened, thus the enciphered data of the storage cell is lost; and the micro control unit is used for locking the communication device when detecting that the enciphered data of the storage cell is lost. By using the characteristic of power failure data loss of the storage cell, after the communication device is uncovered, the lithium battery is controlled to be switched off for supplying electricity to an SARM (Static Random Access Memory), and enciphered data inside the SRAM is lost, so that an MCU (Microprogrammed Control Unit) can not read the enciphered data in the SRAM, thus the communication device is locked.
Description
Technical field
The present invention relates to engineering machinery manufacturing technology field, particularly a kind of locking means of uncapping, device and communication facilities.
Background technology
Along with the competition of domestic construction machinery industry is day by day fierce; Add that engineering machinery costs an arm and a leg; The user only need prepay certain fund just can buy engineering goods, in follow-up use, when user's situation in violation of rules and regulations such as non delivery money of exceeding the time limit occurring; Enterprise need need carry out remote lock to selling engineering goods; Remote lock is through realizing that with the inner electronic communication equipment interaction data of engineering goods some users possibly artificially reequip communication facilities in order under unwarranted situation, to use engineering goods.
Enterprise for the inner communication facilities of the product of protecting production not by artificial dismounting, repacking, installed the detection module of uncapping additional in communication facilities inside, be implemented in and automatically lock product after communication facilities is opened; Because the testing circuit in the communication facilities needs power supply, therefore, this product does not externally have under the situation of power supply will realize that also the people is the lock function of uncapping.
At present; Solution commonly used is: at independent micro-control unit MCU, high power lithium battery power supply unit and the detecting unit of the inner increase of communication facilities; The signal of the real-time monitoring and detection of MCU unit, after the product lid was opened, MCU will receive signal; Execution command realizes the AutoLock feature after product is uncapped.
In research and practice process to prior art, inventor of the present invention finds that existing realization is uncapped in the mode that locks; Need on circuit board, increase independent micro-control unit MCU; Thereby take more circuit board, increased cost, and need powerful lithium battery be the MCU power supply; And circuit board and lithium battery all must be encapsulated in MCU inside, takies a large amount of inner spaces.While MCU need consume more energy and keep duty or low power consumpting state.
Summary of the invention
The present invention provides a kind of locking means of uncapping, device and communication facilities, to solve the technical matters that product is uncapped and locked.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of communication facilities, and said communication facilities comprises: microswitch, lithium battery, storage unit and micro-control unit, wherein,
Said storage unit, the enciphered data that is used to store the said communication facilities of locking;
Said lithium battery is used to said storage unit power supply;
Said microswitch is used for when the lid that detects said communication facilities is opened, breaking off the link between said lithium battery and the storage unit, and interrupting lithium battery is said storage unit power supply, and said storage unit enciphered data is lost;
Said micro-control unit is used for when the enciphered data that detects said storage unit is lost, locking said communication facilities.
Preferably, before the lid of said communication facilities is opened,
Said microswitch also is used for when detecting the cap closure of said communication facilities, connecting the link between said lithium battery and the storage unit, so that said lithium battery is said storage unit power supply;
Said micro-control unit also is used to obtain the enciphered data of said storage unit, and said enciphered data is verified, and after checking is passed through, controls said communication facilities operate as normal.
Preferably, said microswitch comprises: shell fragment, first pin, second pin and three-prong, and said first pin is connected with said lithium battery, and said second pin is connected with said static ram cell, said three-prong ground connection;
Said microswitch specifically is used for when detecting the cap closure of said communication facilities, controls said shell fragment and connects said first pin and said second pin, breaks off said first pin and three-prong; Perhaps when the lid that detects said communication facilities is opened, controls said shell fragment and upspring, break off said first pin and said second pin, connect said first pin and three-prong.
Preferably, said storage unit is: static random storage chip or volatile memory.
Preferably, said lithium battery is a rechargeable lithium battary.
Accordingly, the present invention also provides a kind of locking device of uncapping, and is applied to communication facilities; The said locking device of uncapping comprises: microswitch, lithium battery and storage unit; Wherein, said microswitch comprises shell fragment, first pin, second pin and three-prong, and said first pin is connected with said lithium battery; Said second pin is connected with said storage unit, said three-prong ground connection;
Said storage unit, the enciphered data that is used to store the said communication facilities of locking;
Said microswitch; Be used for when the lid that detects said communication facilities is opened; Control said shell fragment and upspring, break off said first pin and second pin, and connect first pin and three-prong; Interrupting said lithium battery is said storage unit power supply, and the enciphered data in the said storage unit is lost.
Preferably, before the lid of said communication facilities is opened,
Said microswitch also is used for when detecting the cap closure of said communication facilities, controls said shell fragment and connects said first pin and second pin, breaks off said first pin and three-prong, and said lithium battery is said storage unit power supply.
Preferably, said storage unit is: static random storage chip or volatile memory; Said lithium battery is a rechargeable lithium battary.
Accordingly, the present invention provides a kind of locking means of uncapping again, is applied to said communication facilities; Said communication facilities comprises: microswitch, lithium battery, storage unit and micro-control unit; Wherein, said microswitch comprises shell fragment, first pin, second pin and three-prong, and said first pin is connected with said lithium battery; Said second pin is connected with said storage unit, said three-prong ground connection; Said method comprises:
When said microswitch was opened at the lid that detects said communication facilities, interrupting said lithium battery was said storage unit power supply, and the enciphered data of storing in the said storage unit is lost;
Said micro-control unit detects said storage unit, and when the enciphered data that detects said cell stores is lost, locks said communication facilities.
Preferably, before the lid of said communication facilities was opened, said method also comprised:
Said microswitch is when detecting the cap closure of said communication facilities, and controlling said lithium battery is said storage unit power supply, stores the enciphered data of encrypting this communication facilities in the said storage unit;
Said micro-control unit is verified said enciphered data when getting access to the enciphered data of said storage unit, and after checking is passed through, is controlled said communication facilities operate as normal.
Preferably, said method also comprises:
To carry out conversion for the voltage that the external power source of communication facilities power supply is exported, obtain burning voltage;
With said burning voltage step-down is the voltage that satisfies this lithium battery requirement, is said lithium cell charging.
Preferably, said microswitch comprises shell fragment, first pin, second pin and three-prong, and said first pin is connected with said lithium battery, and said second pin is connected with said storage unit, said three-prong ground connection; Wherein,
The said lithium battery of said interruption is that said storage unit power supply specifically comprises: said microswitch is controlled said shell fragment and is upspring, and breaks off said first pin and second pin, connects first pin and three-prong, and said lithium battery is not said storage unit power supply;
The said lithium battery of said control is that said storage unit power supply specifically comprises: control said shell fragment and connect said first pin and second pin, break off said first pin and three-prong, said lithium battery is said storage unit power supply.
The present invention has utilized the characteristic of storage unit (such as SRAM etc.) power down loss of data; After communication facilities is uncapped; Microswitch control lithium battery is broken as the SRAM power supply, and the inner enciphered data of SRAM is lost, to such an extent as to micro-control unit MCU is when the enciphered data that detects said storage unit is lost; Be that MCU can't read the enciphered data among the SRAM, thereby communication facilities is locked.
Description of drawings
Fig. 1 is the structural representation of a kind of communication facilities provided by the invention;
Uncap when the being opened structural representation of locking device of Fig. 2 for the lid of a kind of communication facilities provided by the invention;
Uncap during for the cover closing of a kind of communication facilities provided by the invention structural representation of locking device of Fig. 3;
Fig. 4 is the circuit theory synoptic diagram of a kind of locking device of uncapping provided by the invention;
Fig. 5 provides a kind of process flow diagram of the locking means of uncapping for the present invention.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is done further to specify below in conjunction with accompanying drawing and embodiment.
See also Fig. 1, be the structural representation of communication facilities provided by the invention; Said communication facilities comprises: microswitch 11, lithium battery 12, storage unit 13 and micro-control unit (MCU, Micro Control Unit claims one chip microcomputer or single-chip microcomputer again) 14, wherein,
Said storage unit 13, the enciphered data that is used to store the said communication facilities of locking;
Wherein, the said unit that stores into can be static random storage chip (SRAM, Static Random Access Memory) or volatile memory, but is not limited to this, so long as the storer of power down obliterated data all can, present embodiment does not limit.
Said lithium battery 12 is used to said storage unit 13 power supplies;
Wherein, said lithium battery is low capacity lithium and rechargeable lithium battary.Its charging modes can be when communication facilities external power supply and operate as normal, can be this lithium cell charging.
Said microswitch 11 is used for when the lid that detects said communication facilities is opened, breaking off the link between said lithium battery and the storage unit, and interrupting lithium battery is said storage unit power supply, and said storage unit enciphered data is lost;
Said micro-control unit 14 is used for when the enciphered data that detects said storage unit is lost, locking said communication facilities.Such as; When said storage unit power down, when promptly lithium battery can not be for said storage unit power supply, the enciphered data of said storage unit will be lost when outage; Said micro-control unit 14 is just visited the enciphered data of fail memory cell, thereby locks this communication facilities.
Preferably, on the basis of the foregoing description, before the lid of said communication facilities is opened; Said microswitch; Also be used for when detecting the cap closure of said communication facilities, connecting the link between said lithium battery and the storage unit, so that said lithium battery is said storage unit power supply.That is to say that generally, the lid of said communication facilities is closed, in this case, lithium battery is said storage unit power supply always, to guarantee the enciphered data of this communication facilities of cell stores locking;
Said micro-control unit also is used to obtain the enciphered data of said storage unit, and said enciphered data is verified, and after checking is passed through, controls said communication facilities operate as normal.
Preferably; In the above-described embodiments, said microswitch comprises: shell fragment, first pin, second pin and three-prong, and said first pin is connected with said lithium battery; Said second pin is connected with said static ram cell, said three-prong ground connection;
Wherein, When the lid of communication facilities is in closure state; The lid that said microswitch will detect said communication facilities is in closure state; And control said shell fragment and connect said first pin and said second pin (promptly connecting the link between first pin and second pin), break off said first pin and three-prong (promptly breaking off the link between first pin and second pin); Perhaps
When the lid of communication facilities is in open mode; The lid that said microswitch will detect said communication facilities is in open state; Control said shell fragment and upspring, break off said first pin and said second pin, connect said first pin and three-prong.
Preferably, said storage unit can be static random storage chip or volatile memory, and perhaps other power down lose the parts of the data of storage inside, and present embodiment does not limit.
Preferably, said lithium battery can be rechargeable lithium battary, promptly when communication facilities connects the external power source operate as normal, can be this lithium cell charging.
Among the present invention; The enciphered data of this communication facilities of storage locking in storage unit in advance, such as encrypted code etc., the micro-control unit (such as MCU) in the communication facilities is after start; Through enciphered data in the reading cells; And verify the correctness of said enciphered data, and after checking is passed through, this communication facilities operate as normal.If the lid of this communication facilities once was opened; This storage unit (such as SRAM) can lose power supply in the moment that the lid of communication facilities is opened; Thereby lose internal data, after the enciphered data in micro-control unit detects storage unit is lost, will automatically lock this communication facilities.
The present invention adopts the extremely low power dissipation device, and a consume static current has been saved energy during operate as normal.Further, utilize SRAM power down loss of data characteristic, saved the inner space of control module.
Accordingly, the present invention also provides a kind of locking device of uncapping, and the said locking device of uncapping is applied to communication facilities; Wherein, the said locking device of uncapping comprises: microswitch, lithium battery and storage unit (present embodiment is example with SRAM), wherein; Said microswitch comprises first pin, second pin, three-prong and shell fragment; Said first pin is connected with said lithium battery, and said second pin is connected with said storage unit, said three-prong ground connection;
Said storage unit, the enciphered data that is used to store the said communication facilities of locking;
Wherein, in this embodiment, said storage unit can also be: volatile memory, and the perhaps storer of other power down obliterated datas, present embodiment does not limit.
Said microswitch; Be used for when the lid that detects said communication facilities is opened, control said shell fragment and upspring, break off said first pin and second pin; And connect first pin and three-prong; Interrupting said lithium battery is said storage unit power supply, and the enciphered data of said storage unit is lost, and its structural representation sees Fig. 2 for details; Uncap when being opened for the lid of a kind of communication facilities provided by the invention structural representation of locking device of said Fig. 2, promptly the moment SRAM that is opened of the lid of communication facilities loses the schematic diagram of power supply.
Preferably; Before the lid of said communication facilities was opened, said microswitch also was used for when detecting the cap closure of said communication facilities; Control said shell fragment and connect said first pin and second pin; Break off said first pin and three-prong, said lithium battery is said storage unit power supply, and its structural representation sees Fig. 3 for details; Uncap during for the cover closing of a kind of communication facilities provided by the invention structural representation of locking device of said Fig. 3, promptly the moment lithium battery of the cap closure of communication facilities is the schematic diagram of SRAM power supply.
In embodiment as shown in Figures 2 and 3, said first pin and second pin and three-prong represent with label 1,2 and 3 that respectively shell fragment is represented with label 4.
As shown in Figures 2 and 3, microswitch, lithium battery and SRAM place in the box of communication facilities, under the normal condition.The lid of communication facilities is a closure state, i.e. the shell fragment 4 of the lid of communication facilities compressing microswitch, and said shell fragment is connected the pin one and 2 of microswitch, promptly connects the link between lithium battery and the SRAM, and said lithium battery is SRAM power supply (specifically shown in Figure 2).
After the lid of communication facilities was opened, the shell fragment 4 of microswitch was upspring, and pin one and 2 breaks off, and pin one and 3 connections, and promptly the link between lithium battery and the SRAM breaks off; Lithium battery just can not be for SRAM supplies power, and SRAM loses power supply, and the enciphered data of storage inside is lost.Specifically shown in Figure 3.At this moment, because SRAM loses power supply, the enciphered data of storage inside is lost, MCU can't be from SRAM the enciphered data of reading pre-stored, afterwards, just lock this communication facilities.
Also see also the circuit theory synoptic diagram of Fig. 4 for a kind of locking device of uncapping of providing among the present invention; As shown in the figure; V42 is that external power source passes through direct supply (DC/DC) conversion; Obtaining 4.2V voltage (being burning voltage), is about 3.4V lithium battery to be charged through diode D9 (such as MMSD4148), D15 (such as MMSD4148) step-down.Microswitch S1 (such as D2F-01L) is under normal condition (being the cap closure state); Because the lid of communication facilities is in closure state; Pin one and 2 is connected, and promptly connects the link between rechargeable lithium battary B1 (such as VL2330-VCN) and the SRAM, at this moment; Lithium battery is the SRAM power supply, and V33SRAM is the SRAM power supply among Fig. 4.When the lid of communication facilities was opened, pin one and pin two broke off, and pin one and pin 3 are connected, and promptly break off the link between said lithium battery and the SRAM, and said lithium battery can not be said SRAM power supply, and the enciphered data of SRAM storage is lost; The MCU (not shown) can't be from SRAM the enciphered data of reading pre-stored, thereby lock this communication facilities.
Therefore, the invention provides a kind of easy to be easy-to-usely, long-acting, little design proposal takes up room.Promptly utilized SRAM power down loss of data characteristic, after communication facilities was uncapped, the control lithium battery was broken as the SRAM power supply, and the inner enciphered data of SRAM is lost, to such an extent as to MCU can't read the enciphered data among the SRAM, thereby communication facilities is locked.Wherein, SRAM device power consumption is minimum, guarantees the power supply of SRAM under the situation that makes the small size lithium battery used in the product continue not start shooting in about 90 days at product.
Therefore, the application compared with prior art stores following advantage:
At first, utilize SRAM power down characteristic realize the uncapping function of locking device.In this embodiment, SRAM is the extremely low power dissipation device, and SRAM storage data need not to refresh, and only needs extremely low quiescent current, loss of data after power down.
Secondly; Adopt the low capacity chargeable lithium cell that storage unit (SRAM) is supplied power; The space hold of circuit board has been dwindled in the employing of low capacity lithium battery greatly, and when normally using, the external power source of supplying power for communication facilities can be lithium cell charging; Electric weight until lithium battery is full of, thereby has guaranteed the ageing of communication facilities.
Once more, the present invention adopts microswitch as detecting unit, and whether control lithium battery is that storage unit provides power supply.
Implementation procedure based on said apparatus; The embodiment of the invention also provides a kind of locking means of uncapping; Its process flow diagram sees Fig. 5 for details; Said method is applied to said communication facilities, but is not limited to this this communication facilities, and said communication facilities comprises: microswitch, lithium battery, storage unit and micro-control unit; Said method comprises:
Step 501: when microswitch was opened at the lid that detects said communication facilities, interrupting said lithium battery was said storage unit power supply, and the enciphered data of storing in the said storage unit is lost;
Step 502: micro-control unit detects said storage unit, and when the enciphered data that detects said cell stores is lost, locks said communication facilities.
Preferably; Before the lid of said communication facilities is opened; Said method can also comprise: said microswitch is controlled said shell fragment and is connected said first pin and second pin when detecting the cap closure of said communication facilities, breaks off said first pin and three-prong; Said lithium battery is said storage unit power supply, stores the enciphered data of encrypting this communication facilities in the said storage unit;
Said micro-control unit is verified said enciphered data when getting access to the enciphered data of said storage unit, and after checking is passed through, is controlled said communication facilities operate as normal.
Preferably, said method can also comprise: will carry out conversion for the voltage that the external power source of communication facilities power supply is exported, and obtain burning voltage; With said burning voltage step-down is the voltage that satisfies this lithium battery requirement, is said lithium cell charging.
Preferably, in the foregoing description, said microswitch comprises shell fragment, first pin, second pin and three-prong, and said first pin is connected with said lithium battery, and said second pin is connected with said storage unit, said three-prong ground connection; The said lithium battery of said interruption is that said storage unit power supply specifically comprises: said microswitch is controlled said shell fragment and is upspring, and breaks off said first pin and second pin, connects first pin and three-prong, and said lithium battery is not said storage unit power supply; Promptly having interrupted said lithium battery is said storage unit power supply, and the enciphered data of storing in the said storage unit is lost;
The said lithium battery of said control is that said storage unit power supply specifically comprises: control said shell fragment and connect said first pin and second pin; Break off said first pin and three-prong; Said lithium battery is said storage unit power supply, and promptly controlling said lithium battery is said storage unit power supply.
The implementation procedure of each step sees implementation procedure corresponding in the said apparatus for details in the said method, repeats no more at this.
The present invention has utilized SRAM power down loss of data characteristic, and after communication facilities was uncapped, the control lithium battery was broken as the SRAM power supply, and the inner enciphered data of SRAM is lost, to such an extent as to MCU can't read the enciphered data among the SRAM, thereby communication facilities is locked.
Need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
Through the description of above embodiment, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better embodiment under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (12)
1. a communication facilities is characterized in that, comprising: microswitch, lithium battery, storage unit and micro-control unit, wherein,
Said storage unit, the enciphered data that is used to store the said communication facilities of locking;
Said lithium battery is used to said storage unit power supply;
Said microswitch is used for when the lid that detects said communication facilities is opened, breaking off the link between said lithium battery and the storage unit, and interrupting lithium battery is said storage unit power supply, and said storage unit enciphered data is lost;
Said micro-control unit is used for when the enciphered data that detects said storage unit is lost, locking said communication facilities.
2. communication facilities according to claim 1 is characterized in that, before the lid of said communication facilities is opened,
Said microswitch also is used for when detecting the cap closure of said communication facilities, connecting the link between said lithium battery and the storage unit, so that said lithium battery is said storage unit power supply;
Said micro-control unit also is used to obtain the enciphered data of said storage unit, and said enciphered data is verified, and after checking is passed through, controls said communication facilities operate as normal.
3. communication facilities according to claim 1 and 2; It is characterized in that; Said microswitch comprises: shell fragment, first pin, second pin and three-prong; Said first pin is connected with said lithium battery, and said second pin is connected with said static ram cell, said three-prong ground connection;
Said microswitch specifically is used for when detecting the cap closure of said communication facilities, controls said shell fragment and connects said first pin and said second pin, breaks off said first pin and three-prong; Perhaps when the lid that detects said communication facilities is opened, controls said shell fragment and upspring, break off said first pin and said second pin, connect said first pin and three-prong.
4. communication facilities according to claim 1 and 2 is characterized in that, said storage unit is: static random storage chip or volatile memory.
5. communication facilities according to claim 1 and 2 is characterized in that, said lithium battery is a rechargeable lithium battary.
6. the locking device of uncapping is characterized in that, is applied to communication facilities; The said locking device of uncapping comprises: microswitch, lithium battery and storage unit; Wherein, said microswitch comprises shell fragment, first pin, second pin and three-prong, and said first pin is connected with said lithium battery; Said second pin is connected with said storage unit, said three-prong ground connection;
Said storage unit, the enciphered data that is used to store the said communication facilities of locking;
Said microswitch; Be used for when the lid that detects said communication facilities is opened; Control said shell fragment and upspring, break off said first pin and second pin, and connect first pin and three-prong; Interrupting said lithium battery is said storage unit power supply, and the enciphered data in the said storage unit is lost.
7. according to the said locking device of uncapping of claim 6, it is characterized in that, before the lid of said communication facilities is opened,
Said microswitch also is used for when detecting the cap closure of said communication facilities, controls said shell fragment and connects said first pin and second pin, breaks off said first pin and three-prong, and said lithium battery is said storage unit power supply.
8. according to claim 6 or 7 described communication facilitiess, it is characterized in that,
Said storage unit is: static random storage chip or volatile memory;
Said lithium battery is a rechargeable lithium battary.
9. the locking means of uncapping is characterized in that, is applied to said communication facilities, and said communication facilities comprises: microswitch, lithium battery, storage unit and micro-control unit; Said method comprises:
When said microswitch was opened at the lid that detects said communication facilities, interrupting said lithium battery was said storage unit power supply, and the enciphered data of storing in the said storage unit is lost;
Said micro-control unit detects said storage unit, and when the enciphered data that detects said cell stores is lost, locks said communication facilities.
10. method according to claim 9 is characterized in that, before the lid of said communication facilities was opened, said method also comprised:
Said microswitch is when detecting the cap closure of said communication facilities, and controlling said lithium battery is said storage unit power supply, stores the enciphered data of encrypting this communication facilities in the said storage unit;
Said micro-control unit is verified said enciphered data when getting access to the enciphered data of said storage unit, and after checking is passed through, is controlled said communication facilities operate as normal.
11., it is characterized in that said method also comprises according to claim 9 or 10 described methods:
To carry out conversion for the voltage that the external power source of communication facilities power supply is exported, obtain burning voltage;
With said burning voltage step-down is the voltage that satisfies this lithium battery requirement, is said lithium cell charging.
12. according to claim 9 or 10 described methods; It is characterized in that said microswitch comprises shell fragment, first pin, second pin and three-prong, said first pin is connected with said lithium battery; Said second pin is connected with said storage unit, said three-prong ground connection;
The said lithium battery of said interruption is that said storage unit power supply specifically comprises: said microswitch is controlled said shell fragment and is upspring, and breaks off said first pin and second pin, connects first pin and three-prong, and said lithium battery is not said storage unit power supply;
The said lithium battery of said control is that said storage unit power supply specifically comprises: control said shell fragment and connect said first pin and second pin, break off said first pin and three-prong, said lithium battery is said storage unit power supply.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103147803A CN102360411A (en) | 2011-10-17 | 2011-10-17 | Uncovering locking method and device and communication device |
| PCT/CN2012/074308 WO2013056542A1 (en) | 2011-10-17 | 2012-04-18 | Locking method, device and communication device when cover is opened |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103147803A CN102360411A (en) | 2011-10-17 | 2011-10-17 | Uncovering locking method and device and communication device |
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| CN102360411A true CN102360411A (en) | 2012-02-22 |
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| CN2011103147803A Pending CN102360411A (en) | 2011-10-17 | 2011-10-17 | Uncovering locking method and device and communication device |
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| CN (1) | CN102360411A (en) |
| WO (1) | WO2013056542A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056542A1 (en) * | 2011-10-17 | 2013-04-25 | 湖南三一智能控制设备有限公司 | Locking method, device and communication device when cover is opened |
| CN108880810A (en) * | 2018-09-07 | 2018-11-23 | 江苏云涌电子科技股份有限公司 | One kind ruining key circuit structure |
| CN109446849A (en) * | 2018-12-25 | 2019-03-08 | 威海银创微电子技术有限公司 | Nonvolatile sram data encryption device |
| CN111639370A (en) * | 2020-06-11 | 2020-09-08 | 威海银创微电子技术有限公司 | Nonvolatile SRAM data encryption device |
| CN113806828A (en) * | 2021-09-22 | 2021-12-17 | 深圳市共进电子股份有限公司 | Cover opening protection device and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510243B (en) * | 2009-03-04 | 2011-12-14 | 深圳市凯明杨科技有限公司 | Data protection device and safety payment equipment |
| KR20110100466A (en) * | 2010-03-04 | 2011-09-14 | 삼성전자주식회사 | Powerdown method for system having volatile memory devices |
| CN102184352A (en) * | 2011-03-16 | 2011-09-14 | 东南大学 | Automatic protecting method for computer system based on Bluetooth device authentication |
| CN102360411A (en) * | 2011-10-17 | 2012-02-22 | 三一重工股份有限公司 | Uncovering locking method and device and communication device |
-
2011
- 2011-10-17 CN CN2011103147803A patent/CN102360411A/en active Pending
-
2012
- 2012-04-18 WO PCT/CN2012/074308 patent/WO2013056542A1/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056542A1 (en) * | 2011-10-17 | 2013-04-25 | 湖南三一智能控制设备有限公司 | Locking method, device and communication device when cover is opened |
| CN108880810A (en) * | 2018-09-07 | 2018-11-23 | 江苏云涌电子科技股份有限公司 | One kind ruining key circuit structure |
| CN108880810B (en) * | 2018-09-07 | 2024-02-27 | 江苏云涌电子科技股份有限公司 | Key destroying circuit structure |
| CN109446849A (en) * | 2018-12-25 | 2019-03-08 | 威海银创微电子技术有限公司 | Nonvolatile sram data encryption device |
| CN109446849B (en) * | 2018-12-25 | 2023-05-12 | 威海银创微电子技术有限公司 | Nonvolatile SRAM data encryption device |
| CN111639370A (en) * | 2020-06-11 | 2020-09-08 | 威海银创微电子技术有限公司 | Nonvolatile SRAM data encryption device |
| CN113806828A (en) * | 2021-09-22 | 2021-12-17 | 深圳市共进电子股份有限公司 | Cover opening protection device and method |
| CN113806828B (en) * | 2021-09-22 | 2024-02-02 | 深圳市共进电子股份有限公司 | Cover opening protection device and method |
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| Publication number | Publication date |
|---|---|
| WO2013056542A1 (en) | 2013-04-25 |
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