Background technology
In home network, many equipment all are to connect and the use common protocols by network, for example (IntelligentGrouping and Resource Sharing (information equipment resource-sharing and cooperation with service) agreement communicates for UPnP (Universal Plug and Play, UPnP), IGRS.Form a network by the equipment that uses common network communication protocol to make to adopt same standard agreement in the home network, and in different equipment room transmitting control information and data.
The UPnP agreement is a kind of of household network communication agreement, by the UPnP agreement, equipment can dynamically join network and obtain the IP address and its service that provides of broadcasting, existence that also can the perception miscellaneous equipment is also understood its service ability, this process is that equipment can pass through the control appliance mutual communication subsequently automatically fully.
In home network, can there be one or more control appliances, can operate the equipment in the home network by control appliance.Exist owing to equipment is shared device access and the control hazard that causes in the existing home network, as scene 1, but user's demand is diversified simultaneously, or even contradictory (contrast scene 1 and 2).Provide this two scenes below:
Scene 1: in the home network that uses the UPnP agreement, the control point is corresponding to above-mentioned control appliance.If have two control point A and B in the network simultaneously, these two control points can find and Control Network on same DMR (Digital Media Renderer, digital media presentation device) equipment.If user U1 specifies a DMR equipment by control point A, and plays a media file; And user U2 is after user U1 determines to play, selected same DMR equipment by control point B, also selected a media file to play, because existing household network communication agreement is carried out by reception in proper order to the operational order that receives, therefore after DMR equipment receives the order of user U2, can stop the selected film of user U1 to play, play the selected media file of user U2 then, this will influence watching of user U1.
Scene 2: equally also be in the UPnP home network, user U1 stays in different rooms with user U2, and can use the interior UPnP equipment of home network by the control point in own room.User U1 uses control appliance C1 operation DVR (Digital Video Recorder, digital video recorder) recording TV program, and user U1 gos out because of busy then; After user U1 a period of time outside, want to record other TV programme; So he informs user U2, user U2 is by control appliance C2 operation DVR change program recording.
In above-mentioned two scenes, user's demand is a contradiction: the user in scene 1 does not need others to operate the equipment that he is using, and the user in scene 2 wishes that then others can operate the equipment that he is using.User's demand not only is confined to above-mentioned two kinds in real life, and therefore only offering a kind of operation of equipment mode of user is to satisfy the diversified requirement of user.
For solving visit and the control hazard problem in the existing home network, collaborative process is carried out in operation to multi-control apparatus, satisfy the home network user diversified demand, bring more enriching experiences and operational convenient to the user, prior art has been taked following method:
1, the invention " based on the method for a plurality of control appliance co-ordinations in the central controlled home network " that on July 14th, 2004, disclosed application number was CN02159582.8
In this scheme, a central control equipment (being referred to as master controller in its invention) is arranged in home network, and there are a plurality of control appliances, whole home network all is the operation by all control appliances of central control equipment control and management, be illustrated in figure 1 as the method structural representation based on a plurality of control appliance co-ordinations in the central controlled home network, all devices on the home network comprises that control appliance all will register to central control equipment.Central control equipment has two states, i.e. busy condition and not busy state.Under the busy condition situation, do not accept the control messages of other any control appliance.
Control appliance is after self generates control operation, and the central control equipment on home network sends corresponding operation requests, and central control equipment judges whether self is busy condition, if then current control appliance is retransmitted this operation requests; Otherwise put the central control equipment state for busy, handle the operation requests that is received, the rear center's control appliance of finishing dealing with is with self busy condition removing.
Wherein, when central control equipment is operated equipment according to the operation requests of control appliance, the equipment that is operated feeds back to central control equipment with current state information, central control equipment sends to the control appliance of all registrations with the current state information of this information household appliances equipment then, and the busy condition of central control equipment is eliminated.
The shortcoming of this scheme is:
1) central control equipment can become the bottleneck of handling operation requests.This scheme adopts the method that focuses on to all devices in the home network, comprises control appliance and equipment, and all operations are all handled by central control equipment.If there are a lot of control appliances that distinct device is sent request simultaneously, description by this scheme, central control equipment is in order operation requests to be handled, in case the overlong time of the processing request of certain operation of central control equipment, other operation all will get clogged, this will seriously reduce the response speed of equipment, and influence user's use.In case and central control equipment breaks down, and then can occur the situation of control fails in the home network, because other control appliance can not be controlled equipment by center control nodes.
2) this scheme restricted application can not solve the problem of device access conflict fully.This scheme is just protected a step control operation, rather than a whole operating process is protected.This technical scheme is suitable for controlling the fairly simple operation on the ordinary electrical home appliance equipment, for example for the switching on and shutting down of TV, and adjustment of refrigerator or the like, and be not suitable for the equipment that video and voice playing etc. have specific (special) requirements.Because only protected a certain step operation, and the limited time of protection, and in the relevant operation of equipment of Voice ﹠ Video, a user's operation can influence the another one user, so this scheme can not solve the problem of resource access conflict fully.
3) this invention does not provide the mechanism of communication and coordination between the operator.The user can have different requirements to the use of equipment under different occasions, wish that sometimes this equipment is shared, and but wants sometimes oneself to exclusively enjoy.Because the strategy of this scheme all is predefined, the control strategy that promptly offers the user all is fixing dead, even allow the user to be configured, its layoutprocedure is also more loaded down with trivial details.Owing to do not offer the mechanism of communication and coordination between the operator, so this scheme can not satisfy the diversified demand of user.
An expansion as this scheme, can for each equipment a state be set at central control equipment,, thereby improve the efficient of handling with the realization parallel processing, but this expansion has just increased the parallel processing capability of central control equipment, can not be from solving above mentioned shortcoming in essence.
2, the invention that on August 25th, 2004, disclosed application number was CN03104651.7 " based on the coordinating working method of a plurality of control appliances in the home network of equity connection "
In this scheme, in home network, there is not central control equipment, but by the request of other control appliance of device processes.Be illustrated in figure 2 as the coordinating working method structural representation of a plurality of control appliances in the home network that connects based on equity, in this scheme, if certain control appliance will be controlled certain equipment in the home network, must on equipment, register, for example control appliance C1 wants the equipment D1 on the Control Network, and then control appliance C1 just must register on equipment D1.The equipment here also has only two states, i.e. busy condition and not busy state.Under the busy condition situation, do not accept the control messages of other any control appliance.
When control appliance is initiated operation to controlled device, judge whether this control appliance is registered on this controlled device, if not registration, then control appliance is sent out register requirement to controlled device, control appliance is registered to controlled device; If it is registered, whether the operating state of then judging control appliance and controlled device both sides respectively is busy condition, if, then repeat to judge the current operating state that is in busy condition equipment, otherwise the operating state of putting this control appliance and controlled device respectively is a busy condition, controlled device is carried out the operation that control appliance is initiated, after operation is finished, the new state after the executable operations is sent on the control appliance of all registrations, remove the busy condition of this control appliance and controlled device.
In this scheme, though there is not the processing bottleneck problem that has now in the scheme 1, it has two shortcomings: i.e. the restricted application of this invention scheme, and the mechanism that does not still offer operator's communication and coordinate.Therefore, this scheme still can not satisfy the diversified demand of user.
Summary of the invention
Technical problem to be solved by this invention is: overcome existing home network and have the problem of handling bottleneck, can not solving the device access conflict fully, a kind of domestic network cooperation method of multi-control apparatus is provided, the mechanism that provides the operator to link up and coordinate, solve visit and control hazard problem in the existing home network, equipment in the home network is control effectively and operates, satisfy the diversified demand of user.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
The domestic network cooperation method of this multi-control apparatus may further comprise the steps:
Form control combination in the one family network by the control appliance with a certain Equipment Control power and this equipment;
When other outer control appliance of described control combination will be operated equipment in this control combination, carry out ruling by this control combination according to predefined control model, if allow, then by the new control combination of device build in new control appliance and the former control combination, otherwise refusal is to the control of this equipment.
The treatment step that control appliance is operated equipment is as follows:
S1, not the equipment that uses of controlled device with make up initial control combination to its control appliance of initiating operational order;
S2, control combination judge whether the user is the operation of being undertaken by the control appliance in this control combination, if then directly set or operate after accepting the operational order of a certain control appliance transmission; Otherwise change next step;
S3, the current control model of using of control combination judgment device are handled by this control model, judge whether agree to accept described control appliance and control, if allow then change next step, otherwise refusal is controlled this equipment;
S4, by the new control combination of device build in new control appliance and the former control combination.
When equipment was set or operated, control combination decision operation type still was common control operation for setting control model; If will set control model, then set control model according to order; If the action of appointment is then finished in common control operation by the user command operating equipment.
Described control model can comprise request pattern, free schema and locking mode; During the request pattern, send the control appliance of request and need can control the equipment of being asked through the permission of control combination; During free schema, the control appliance that control combination allows all to send request is controlled the equipment of being asked; During locking mode, this equipment is locked, other control appliance can not be controlled this equipment.
If control model is the request pattern, then the control appliance request original subscriber in the control combination provides answer, whether agree that promptly new control appliance controls the equipment in this control combination, if the original subscriber allows, equipment in then new control appliance and the former control combination is formed new control combination, removes the control combination relation of former control appliance and this equipment simultaneously; If the original subscriber does not allow, then new control appliance can not be controlled this equipment.If the original subscriber does not provide any answer in limiting time, then be considered as former control appliance and abandon control this equipment, equipment in new control appliance and the former control combination is formed new control combination, removes the control combination relation of former control appliance and this equipment simultaneously.
If control model is a free schema, the equipment in then new control appliance and the former control combination is formed new control combination, removes the control combination relation of former control appliance and this equipment simultaneously.
If control model is a locking mode, then new control appliance can not be controlled the equipment in the former control combination; Or control model sets the locking password during for locking mode, and the prompting user inputs password, if password is correct, then new control appliance can be controlled this equipment.
Can regularly send query messages between control appliance in the control combination and the equipment, to determine whether the other side exists, if the other side does not exist, then the control combination relation automatically terminates.
The control model of described control combination is safeguarded by equipment in the control combination or control appliance, or the control model of all control combinations is safeguarded by a control appliance; Service equipment is safeguarded a control combination tabulation, and each clauses and subclauses of tabulation contain the unique device name and the corresponding control model thereof of equipment or control appliance, and described service equipment is responsible for mutual with other control appliance, and upgrades described control combination tabulation.
Beneficial effect of the present invention is: the invention provides based on giving apparatus settings different control models are carried out the automatic synchronization management to the equipment in the home network method, satisfied the diversified demand of user, the mechanism of linking up and coordinating between the operator of control appliance is provided, control is disperseed, having solved central control equipment can become the bottleneck problem of handling operation requests, gives household intelligent networkization and hommization.The present invention can provide different control models according to user's needs, the user can freely select; According to user's setting, the equipment in the home network can be according to the control model auto-action of setting, and has solved the collision problem of device access and control in the home network, has realized the effective management to equipment.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As shown in Figure 3, the present invention utilizes control model to solve the collision problem of device access and control in the home network, realizes the effective management to equipment, so-called control model, be exactly the mode of operation agreement between user and the equipment, dissimilar equipment is supported different control models.
When certain control appliance has the control of certain equipment, claim this control appliance and equipment to form the control combination in the one family network.Control combination is made up of two elements, promptly comprises an equipment and a control appliance.Corresponding to Fig. 3, claim equipment D1 and control appliance C1 to form a control combination.A control appliance can belong to a plurality of control combinations simultaneously, but an equipment can only belong to a control combination simultaneously.In Fig. 3, if other control appliance, for example control appliance C2 wants operating equipment D1, must carry out ruling via control combination under the equipment D1.
For convenience of description, the equipment that scheme is related to is done following mark:
D1: for the equipment of service is provided in the home network
C1: control appliance and equipment D1 constitute a control combination
C2: control appliance, other users will control D1 in the control combination that C1 and D1 form by C2.
CC: the control combination that control appliance C1 and equipment D1 constitute
According to the device type difference, the control model of equipment support can be one or several in the various control pattern, lists three kinds of basic control models here: request pattern, free schema and locking mode.The control model of equipment is not limited to above-mentioned three kinds of control models, also can be other type control model, provides the application of these three kinds of patterns below:
1) request pattern is promptly sent the control appliance of request and need can be controlled the equipment of being asked through the permission of control combination.
2) free schema, i.e. the control appliance that control combination allows all to send request is controlled the equipment of being asked.
3) locking mode promptly locks to this equipment, and other control appliance can not be controlled this equipment.
Provide the flow chart of technical scheme of the present invention below, as shown in Figure 4:
(1) make up initial control combination CC, under the initial situation, equipment is not controlled by any control appliance, if D1 is not used by other control appliance, and C1 initiated operational order to equipment, and then C1 can control D1, and promptly C1 and D1 constitute a control combination.
(2) control combination CC accepts user command, i.e. the operational order that control appliance sends is accepted in the control combination of C1 and D1 formation.
(3) control combination CC judges whether the user operates by the control appliance among the CC, i.e. control combination decision instruction is by which control appliance to send, if the control appliance C1 among the CC then changes step (8); Otherwise change step (4).
(4) the current control model of control combination judgment device is promptly judged the control model that D1 is using.
(5) control combination is handled by the handling process of current control model, promptly according to the control model of the D1 that obtains in the step (4), coordinates operation between C1 and the C2 according to the flow process of this pattern.
(6) control combination judges whether to agree that accepting other control appliance controls, and promptly according to the result who draws in the step (5), judges whether D1 allows to accept the control of C2.If allow, then change step (7); Otherwise change step (2).
(7) make up new control combination, promptly C2 and D1 make up new control combination, and D1 no longer accepts the control of C1 simultaneously, and promptly C2 substitutes C1.
(8) CC decision operation type, the decision operation type still is common control operation for setting control model.If will set control model, then change step (9); If step (10) is then changeed in common control operation.
(9) select and set control model,, then set control model according to order if order is the control model related command.
(10) by the user command commanding apparatus, promptly finish the action of appointment by command operation equipment D1.
Wherein in step (4), the current control model of equipment D1 can be preserved by self, also can be kept on the control appliance of affiliated control combination.
Wherein in step (9), the control model that equipment D1 is supported can be obtained by self, for example the control model the supported form with file is kept on the equipment; The also control model that can come judgment device to support according to the type of equipment by control appliance.
Every kind of control model has different handling processes, is that example describes with three kinds of control models here, and its handling process as shown in Figure 5.Step among Fig. 5 (1)~(6) are the total steps of various patterns, and (8)~(11) are corresponding to the step of free schema, and (12)~(14) are corresponding to the step of locking mode.And the step of request pattern, the selection from step (7) back according to the user has different steps, sees following flow process for details:
(1) user U2 button transmitting control commands, control appliance C2 accepts operational order.
(2) C2 is to the control combination transmitting control commands at D1 place.
(3) C2 reminds user U2 to wait for the answer of control combination.
(4) if D1 has belonged to certain control combination, for example be made up of C1 and D1, then control combination sends message to C2 and informs that control combination exists.
(5) C2 reminds U2 that its equipment of being asked has belonged to certain control combination.
(6) control model that this D1 is current is judged in control combination; If control model is the request pattern, then change step (7); If free schema is then changeed step (9); If locking mode then changes step (12).
(7) request of the C1 in control combination user U1 provides answer, whether agrees that promptly C2 controls D1; If U1 does not provide any answer in limiting time, then change (9), be considered as U1 and abandon control equipment D1.
(8) user selects according to prompting, confirms action if comprise in user's the action, and allows C2 that D1 is operated, and then changes step (9); Otherwise change step (12).
(9) C2 and D1 form new control combination, remove the control combination relation of C1 and D1 simultaneously.
(10) the prompting user allows the equipment of request is controlled, and C2 points out to U2, and promptly U2 can operate D1 by C2.
(11) control combination is pointed out to U1, and promptly D1 is controlled by C2, and flow process finishes.
(12) control combination sends " not allowing control " message to C2, and C2 can not control equipment D1.
(13) the prompting user does not allow the equipment of request is controlled, and C2 gives user U2 prompting, and promptly U2 can not operate D1 by C2.
(14) provide the U1 prompting by control combination, promptly C2 will control D1, but is rejected, and flow process finishes.
Wherein, step (3), (5), (10), (11), (13), (14) can provide more friendly interactive mode for the user, are optional step.
The present invention has multiple embodiments can realize above-mentioned functions, and now further describe in conjunction with following two kinds of embodiments: the control appliance among the embodiment one and the relationship description of equipment are safeguarded by equipment; And the relationship description among the embodiment two is safeguarded by control appliance.
Wherein, be responsible for control appliance (or equipment) transmission of the equipment (or control appliance) in this control combination regularly query messages that relationship description is safeguarded in the control combination, to determine whether the other side exists.If the other side does not exist, then the control combination relation automatically terminates.This is owing to the situation that might occur side collapse in control combination, if the untimely relation of removing control combination of separating will be carried out some unnecessary operations.
Embodiment one:
In this embodiment, the relationship description of control combination safeguarded by the equipment in the control combination, and it also will be responsible for other control appliance alternately simultaneously, and the control model that equipment is supported is also obtained by equipment.
In family's network communication protocol, each equipment all has own unique identifier.For example in the UPnP agreement, each equipment all has the UDN (Unique Device Name, promptly unique implementor name) of oneself, and other control appliance can obtain the UDN of this equipment.In this embodiment, each control appliance also all has the UDN. of oneself
As shown in Figure 6, provide the flow process of present embodiment below:
(1) C2 accepts user instruction.
(2) C2 is to the D1 transmitting control commands that will control, and the content of order comprises the UDN of oneself.
(3) C2 reminds user U2 to wait for and replys message.
(4) if D1 has belonged to certain control combination, for example be made up of C1 and D1, then D1 sends message to C2 and informs that D1 has been subordinated to a control combination.
(5) C2 reminds U2 that its D1 of being asked has belonged to certain control combination.
(6) D1 judges its current control model; If the request pattern is then changeed step (7); If free schema is then changeed step (10); If locking mode then changes step (17).
(7) D1 sends control request message to C1, and expression C2 will obtain the control of D1.
(8) C1 request U1 provides answer, whether agrees that promptly C2 controls D1; If U1 does not provide any answer in limiting time, then change (10), look U1 and abandon control D1.
(9) U1 selects according to prompting; If the user confirms to select, then allow C2 that D1 is operated, then change step (10); Otherwise change step (17).
(10) D1 does and adds latching operation.
(11) D1 deletes the control combination clauses and subclauses of C1 correspondence from the control tabulation, promptly removes the control combination of C1 and D1.
(12) D1 does unlocking operation, to allow C2 operation D1.
(13) D1 sends to C2 and allows control messages, promptly allows C2 to control this equipment.
(14) C2 points out to U2, and promptly U2 can operate D1 by C2.
(15) D1 sends the control combination event notification to C1, informs that C2 has obtained the control of D1.
(16) provide user U1 prompting by D1, promptly C2 has controlled D1.Flow process finishes.
(17) D1 sends " not allowing control " message to C2, and C2 receives this message, but can not control D1.
(18) C2 gives user U2 prompting, and promptly user U2 can not operate D1 by C2.
(19) D1 sends the control combination event notification to C1, informs that the request of the control of C2 acquisition D1 is rejected.
(20) provide the U1 prompting by D1, promptly C2 will control D1, but with its refusal.Flow process finishes.
Wherein, step (1), (3), (5), (14), (15), (16), (18), (19), (20) provide more friendly prompting for the user, are optional step.In the present embodiment, obtain the control appliance of control, can free switching controls pattern.
Embodiment two:
In this embodiment, the relationship description of control combination safeguarded by the control appliance in the control combination, and it also will be responsible for other control appliance alternately simultaneously, and the control model that equipment is supported is also obtained by control appliance.Each control appliance is all safeguarded a control combination tabulation, and each clauses and subclauses of tabulation contain controls equipment UDN and corresponding control model to some extent.
As shown in Figure 7, provide the handling process of this embodiment below:
Step among Fig. 7 (1)~(6) are the total steps of various patterns; (9)~(17) corresponding to the step of free schema, (18)~(20) are corresponding to the step of locking mode.And the step of request pattern has difference according to user's selection from the back selection according to the user of step (8), sees following flow process for details:
(1) C2 accepts user's operation.
(2) control appliance of C2 in network comprises C1, and transmitting control commands is comprising UDN of oneself and the equipment UDN that will control.
(3) C2 reminds U2 to wait for the answer of C1.
(4) if D1 has belonged to certain control combination, for example be made up of C1 and D1, then C1 sends message to C2 and informs that D1 has been subordinated to a control combination.
(5) C2 reminds U2 that its D1 of being asked has been subordinated to a control combination.
(6) C1 judges the current control model of D1: if control model is the request pattern, then change step (7); If free schema is then changeed step (9); If locking mode then changes step (18).
(7) C1 shows request, U1 to provide answer, whether agrees that promptly C2 controls D1; If U1 does not provide any answer in limiting time, then change (9), look U1 and abandon control equipment.
(8) the U1 prompting is operated.If U2 confirms to select, and allow C2 that D1 is operated, then change step (9); Otherwise change step (18).
(9) C1 is to D1 transmitting apparatus locking messages, and D1 receives the operation that locks after this message, has only C1 can announce D1 and unlocks.
(10) C1 deletes the control combination clauses and subclauses of D1 correspondence from the control tabulation, promptly removes the control combination of C1 and D1.
(11) C1 sends the success message that locks to C2, informs that C2 can upgrade its list of devices.
(12) C2 revises the control combination tabulation, adds the control combination clauses and subclauses of a D1 correspondence.
(13) after the renewal tabulation finishes, send an establishment to C1 and control the success message of tabulating, so that C1 notice D1 release.
(14) D1 calls unlocking operation to oneself, to allow C2 operation D1.
(15) C1 sends the permission control messages to C2 after equipment release success, and C2 can operate D1 afterwards.
(16) C2 points out to U2, and promptly U2 can operate D1 by C2.
(17) provide the U1 prompting by C1, promptly C2 has controlled D1.
(18) C1 sends " not allowing control " message to C2, and indication C2 can not control D1.
(19) C2 points out to U2, and promptly U2 can not operate D1 by C2.
(20) provide the U1 prompting by C1, promptly C2 will control D1, but is rejected.
Wherein, step (1), (3), (5), (16), (17), (19), (20) provide more friendly prompting for the user, are optional step.In the present embodiment, the control appliance of acquisition control can free switching controls pattern.
Wherein in step (2), the message that C2 sends is multicast message, and other control appliance in the home network also can receive this message.
Wherein in step (2), if in the limiting time of C2 after sending the control assert message, receive other control appliance again, for example the control assert message of this equipment of C1 transmission then represents to have taken place conflict.Then two control appliances all need be waited for random time, and resend the control assert message.If some control appliances are received a control statement request then are initiatively abandoned sending the control assert message, by sending control appliance and control combination of device build of control statement prior to oneself.
For understanding beneficial effect of the present invention, list applied scene of the present invention:
Tom is with in Jack stays in different rooms, and all there is a control appliance in each room, and wherein control appliance can be the control appliance of handheld device or other form, and they can both find the DMR that started in the network.Tom finds a good-looking film in the computer of supporting UPnP, recommend Jack and see.Tom has selected the DMR that Jack started, but Jack has selected a media file and play, and the control model that Jack sets this DMR is the request pattern.In case the equipment that Tom has selected Jack using is just pointed out Jack, the someone will recommend to play a film to him, and whether inquiry is ready to play.Jack selects " agreement ", and Jack just can enjoy the film of Tom selection like this.If Jack does not want to be disturbed, just control model can be set at locking mode, so just only provide prompting of Tom, do not appreciate media file and can not interrupt Jack.
Like this, increased human oriented design, not watching of Jack can be interrupted by gratuitous because of misoperation or other artificial reason.And Jack need not search the position that Tom recommends the film place pretty troublesomely, and Tom just can find and plays to him.And Jack can freely set control model according to the needs of oneself, and the occupation mode of an equipment no longer is unalterable.
The invention provides based on giving apparatus settings different control models are carried out the automatic synchronization management to the equipment in the home network method, satisfied the diversified demand of user, the mechanism of linking up and coordinating between the operator of control appliance is provided, control is disperseed, solving central control equipment can become the bottleneck problem of handling operation requests, gives household intelligent networkization and hommization.Can provide different control models according to user's needs, the user can freely select; According to user's setting, the equipment in the home network can be according to the control model auto-action of setting.
The present invention also can be safeguarded the information of all control combinations in the home network, also can realize the object of the invention by a control appliance.Can be not limited to the home network of UPnP, IGRS agreement formation, control model can not only be confined to three kinds of patterns described above, can increase the expansion of more pattern and various patterns, for example in locking mode, can set the locking password,, can point out the user to input password during control appliance if equipment is locked, if password is correct, then can control equipment.Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalence that all utilizations specification of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.