CN101287316A

CN101287316A - System bridge and timeclock for RF controlled lighting systems

Info

Publication number: CN101287316A
Application number: CN 200810087264
Authority: CN
Inventors: 小罗伯特·弗朗西斯·瓦尔科; 乔恩·迈克尔·基吉; 贾森·道格拉斯·克雷泽; 格伦·安德鲁·克鲁泽
Original assignee: Lutron Electronics Co Inc
Current assignee: Lutron Electronics Co Inc
Priority date: 2003-06-10
Filing date: 2004-06-09
Publication date: 2008-10-15
Anticipated expiration: 2024-06-09
Also published as: CN100517145C; CN101287316B; CN1823314A

Abstract

A method for operatively interconnecting a first and second lighting control subnet is disclosed. In the method, a link claim is transmitted to the first and second lighting control subnets from a bridge. The link claim directs the first and second lighting control subnets to wait for a lighting control command, which is transmitted to the lighting control command to the first lighting control subnet. A random wait time is assigned to the first lighting control subnet and a maximum random wait time is assigned to the second lighting control subnet. Finally, an acknowledgement is received from the first lighting control subnet.

Description

The system bridges device and the clock that are used for RF controlled illumination system

Related application

The application requires to submit on October 8th, 2003, name is called the U. S. application No.10/681 of " System Bridge andTimeclock For RF Controlled Lighting Systems ", 062 rights and interests, the latter requires to submit on June 10th, 2003, name is called the U. S. application No.60/477 of " SystemBridging and Timeclock For RF Controlled Lighting Systems ", 505 rights and interests, their full content is hereby expressly incorporated by reference.

Technical field

The present invention relates generally to Lighting Control Assembly.Particularly, the present invention relates to the Lighting Control Assembly that interconnects, wherein these Lighting Control Assemblies are worked with identical radio frequency (RF).More specifically, the present invention relates to be used for the equipment and the method for this interconnection.

Background technology

Can utilize combination at the predetermined lighting apparatus of level works such as predetermined light intensity to realize that illumination uses.For example, residential lighting is used may need multiple illumination situation or " scene ".First kind of scene may be that the resident is needed when movable when being in and in the room.In this scene, mobile safely to be implemented in the room at the light of each position irradiation full strength.Second kind of scene may be needed when the resident goes out.For example, for safety or other reasons, outdoor light and room light may shine with different intensity grades.Equally, the scene that can dispose other be used for that the resident spends a holiday, amusement or carry out the activity of any other type.Along with the increase of lighting apparatus and/or scene, controlling lighting apparatus rather than control each lighting apparatus separately from middle position will be more easily.

In using, illumination has the multiple system that can realize to the lighting apparatus remote control.Wireless illumination control is commonly used in dwelling house and commercial the application because it compare with wired system install easily and cost low.Wired system is because of needing the hard wire lighting control equipment to have a lot of shortcomings in illumination is used.For example, existing building being overhauled (retrofit) may relate to and make it pass wall or other structures, cable tray or pipeline are installed and/or be made electric wire pass existing pipeline to electric wire wiring to provide wire system.Remain in the planning stage if the building of wire system is installed therein,, just need to provide in the planned design that electric wire includes this building in so if avoid the above-mentioned problem of overhauling.In any situation, to the plan of wired system with install and all need to pay work, this has increased cost.

On the contrary, the selection that wireless system is normally more economical than hard wire Lighting Control Assembly, because significantly reduced the needs of installing and connect electric wire, this is even more important for existing building.Needn't make a plan for lighting control equipment is installed at the during the design of building, maybe must overhaul existing building, the owner of building or operator can be placed on lighting control equipment the place of this equipment of expectation simply.This equipment can be battery powered, or can be connected to outlet simply.In older existed building, the cost savings of wireless system are especially remarkable, otherwise these buildings will need overhauling of complexity and/or trouble.Wireless system still is the preferred selection of domestic. applications, pays attention to cost more because this application is used than commerce usually.

A kind of method that enforcement has the wireless Lighting Control Assembly of wireless lighting control equipment is that these equipment can be communicated with one another by radio frequency (RF) transmission.The Lutron electronics, inc. that an example of this RF system is Coorpersburg PA makes

System.Press

All devices in the agreement, subnet is with identical frequency work, and wherein subnet is single

System.Use single-frequency can avoid and build other interior equipment and disturb, meet the FCC standard, reduce cost etc.Yet the result who does like this is, the equipment in might subnet can be interfering with each other, and this is owing to send simultaneously by identical frequency and to cause.In addition, in existing RF Lighting Control Assembly, restricted for the number of devices that can on single network, control.The equipment of too many quantity can with the FCC norm conflict because these standards only allow the time of transmission certain-length on characteristic frequency.Present system, for example

Allow 32 equipment of control at most.

In some applications, must use and exceed lighting control equipment that single subnet can be controlled, more.Therefore, may need second subnet to control the equipment of all expectations.Should be realized that, two wireless Lighting Control Assemblies are arranged close to each other, when the both works with identical frequency, can cause serious problem, especially when light scene relates to two subnets.Particularly, might each subnet communicate by letter simultaneously and therefore owing to cause message collision and unnecessarily produce RF and the phase mutual interference.Although owing to use the relatively short RF transmission time in single subnet, the probability that disturbs in a subnet may be less, in the plurality of subnets situation, because the equipment of greater number must receive and transmit the RF transmission, the RF transmission time has increased.

For example, when two incoherent subnet positions were close, each subnet all had the risk of disturbing mutually with another.Yet because each subnet is incoherent, the timing of illumination incident in each subnet (for example scene) will only can take place at one time because of coincidence.On the contrary, when two or more subnets were grouped together on function, the light scene that relates to more than a subnet can make each subnet that works communicate by letter at one time wittingly.As a result, in the plurality of subnets system, for the point that may disturb, the RF transmission time has increased.

Therefore, need a kind of method, be used to increase the number of devices that lighting control networks can be controlled, described lighting control networks uses single RF.Particularly, need a kind of method that links a plurality of subnets, described a plurality of subnets can be as coexisting with the single entity of identical RF work, and carry out the mutual of the overall situation under the situation of data collision each other and communicate by letter not having.More specifically, need a kind of method, control the illumination incident able to programme that relates to a plurality of subnets that starts by central authorities.

Summary of the invention

In view of the above problems, described a kind of bridging device and method, it provides link between each lighting mains, each called subnet, and described network, subnet are with identical RF work, and be simultaneously close to each other.In an embodiment of the present invention, provide bridger between two or more subnets, it allows each subnet reception and transmission RF signal or message to the equipment in this subnet or other subnets, and message collision is minimized.Therefore, an embodiment allows the light scene able to programme that relates to the lighting apparatus of being controlled by a plurality of subnets is controlled.Another embodiment of the present invention relates to and is used between a plurality of subnets the communication means of the information of transmitting.

In an embodiment of the present invention, provide two or more positions close subnet, wherein each subnet is with identical RF work.An embodiment can communicate with one another each subnet, allows simultaneously to carry out some overlapping controls by master controller between subnet.Correspondingly, one embodiment of the present of invention provide overall performance by the programming and the operation of for example imaginary button, and described imaginary button is connected to bridging device in operation.An embodiment has also minimized the possibility that subnet is communicated by letter simultaneously, thereby avoids data collision.

Embodiments of the invention have been expanded the use main control panel and can have been controlled and apparatus operating quantity.For example, exist

In the system, controllable equipment can be increased to 64 controllable devices from 32.In other embodiments, can control the equipment of varying number.

Description of drawings

In conjunction with the accompanying drawings, will be better appreciated by the summary of the invention and the DETAILED DESCRIPTION OF THE PREFERRED of front.For purpose of the present invention being described, exemplary embodiment of the present invention shown in the drawings; Yet, the invention is not restricted to disclosed ad hoc approach and means.In the accompanying drawings:

Fig. 1 is the block diagram that exemplary RF Lighting Control Assembly is shown;

Fig. 2 A is the block diagram of exemplary bridged equipment according to an embodiment of the invention;

Fig. 2 B is the block diagram by the exemplary RF Lighting Control Assembly of interconnection in operation of bridging device according to an embodiment of the invention;

Fig. 3 is the flow chart that illustrates according to the method for two RF Lighting Control Assemblies of embodiments of the invention bridge joint;

Fig. 4 is the exemplary sequential chart of bridge system according to an embodiment of the invention;

Fig. 5 is the exemplary sequential chart that is used to overcome the communication protocol of cross-talk situation according to one embodiment of the invention;

Fig. 6 A-C is an exemplary sequential chart of carrying out the communication protocol of serial command according to one embodiment of the invention in single subnet;

Fig. 7 A-C strides two subnets according to one embodiment of the invention to carry out the exemplary sequential chart of the communication protocol of each order in succession.

Embodiment

Embodiments of the invention relate to two or more RF Lighting Control Assemblies of interconnection in operation, and described system is with identical RF work close to each other.In such embodiments, send the ability of the RF signal that can be received near at least one equipment in the RF Lighting Control Assembly that is meant by at least one equipment in the 2nd RF Lighting Control Assembly.Should be realized that the RF signal that is used by this Lighting Control Assembly can be any frequency that is suitable for desired location and the use of this Lighting Control Assembly.For example, can select this frequency to meet the FCC standard, avoid with this Lighting Control Assembly institute operation area in other device conflicts, or according to other considerations.

As mentioned above, one embodiment of the present of invention relate to the Lighting Control Assembly that can adopt among building waits.The example of this Lighting Control Assembly is in U.S. Patent No. 5,982, describes in 103,5,905442,5,848,054,5,838,226 and 5,736,965; All these has transferred Lutron electronics, inc., and its full content is hereby expressly incorporated by reference.Can also be with reference to the website of Lutron electronics, inc. Http:// www.lutron.com, comprise in this website more about The enforcement of system and the information of use.According to the reference of institute's combination, those skilled in the art should be familiar with implementing the method for RF Lighting Control Assembly, therefore, for the sake of simplicity, in the detailed argumentation of this omission to these themes.

One embodiment of the present of invention comprise bridging device and the communication means that is adopted by this bridging device, and described bridging device for example is to link independently system bridge or the system bridge and the clock (SBT) of the network of RF control.In one embodiment, this equipment and method can be used for for example two subnets of RF illuminator of bridge joint.In such embodiments, the controlled function of all in subnet all is to finish by the RF signal between master control equipment, lighting control equipment and/or (if desired) repeater.Master control equipment provides a plurality of control buttons and positioning indicator, and described control button is designated to be used to control various lighting apparatus, the state of described positioning indicator reflection Lighting Control Assembly.When needed, repeater is used to guarantee that all devices can be received as the purpose of control appliance and pass through the communication that the RF signal transmits.Be combined with Among the embodiment of system, lighting control equipment communicates with one another by RF (for example 390,418 or 434MHz).

Forward Fig. 1 now to, provide exemplary RF Lighting Control Assembly to be shown (for example

System etc.) block diagram.System 100 comprises master controller 11, is used to make the user can be to system's 100 input commands, and observes the illumination condition information that can show on indicating device 16, and indicating device 16 can comprise for example LED, lcd screen etc.In addition, system 100 comprises lighting control equipment 12, for example dimmer.Repeater 13 as what its name hinted, from master controller 11 and/or lighting control equipment 12 received signals, and is transmitted this signal so that the RF transmission of increase scope to be provided.Should be realized that repeater 13 is optionally, because in some applications, master controller 11 and/or lighting control equipment 12 is set, make that both can direct communication, and do not need repeater 13.Master controller 11, lighting control equipment 12 and optional repeater 13 are connected to each other in operation by wireless communication link 15.As mentioned above, all devices of system 100 is worked with identical RF on each communication link 15.

The user selects to start specific light scene, begins this scene by operation master controller 11.Signal is passed to appropriate illumination control appliance 12 then, to carry out the required function of this scene.Should be realized that this signal can be transmitted by repeater 13, receive this signal to guarantee lighting control equipment 12.It should further be appreciated that this signal can comprise various message segments.For example, be used to carry out outside the order of specific function, this signal can comprise the identifier of corresponding master controller 11 and/or lighting control equipment 12 etc.Additional formatted message can be provided, for example be used for the address, room of unique identification system 100.The format of this signal any kind or configuration also are consistent with embodiments of the invention.

In case the illuminated control appliance 12 of this signal receives, then, this Equipment Control lamp 14 when needing, lighting control equipment 12 sends back master controller 11 with signal.Master controller 11 is indicated affirmation by illuminating indicating device 16 lamps, and the affirmation task completes successfully.Indicating device 16 can show the information of any kind, for example the strength grade of lamp 14, open/close state and/or similar information.

Should be appreciated that if the user wishes only to influence a lamp 14 by the light intensity that for example changes lamp 14, the user can direct control lighting control equipment 12.In such embodiments, lighting control equipment 12 can send signal to master controller 11, notifies this master controller 11 with the intensity that changes.In such embodiments, will upgrade the state of change by indicating device 16.As an alternative, lighting control equipment 12 can be waited for, has transmitted signal up to master controller 11, thereby only upgrades the state of lighting control equipment 12 when master controller 11 polls (poll).Should be appreciated that the RF Lighting Control Assembly of Fig. 1 only is exemplary, the equipment of any amount or configuration all is consistent with embodiments of the invention.

Should be realized that in the system of Fig. 1, " subnet " comprises at least one master controller 11 and at least one lighting control equipment 12.As mentioned above, only when requiring to guarantee that signal between master controller 11 and the lighting control equipment 12 successfully transmits and receives, just need repeater 13 to exist.On the contrary, in an embodiment of the present invention, below in conjunction with what Fig. 3 to 7 discussed, the subnet that links by bridger only needs to comprise individual equipment as the general.As what will can find out, comprise the function of master controller 11 according to the bridger of the embodiment of the invention from below.Therefore, subnet in one embodiment only needs to comprise single master controller 11 or single lighting control equipment 12, although the equipment of greater number is consistent with embodiments of the invention equally.

Bridging method

As mentioned above, in application,, an above equipment (for example master controller 11) increases because of sending the chance that runs into interference simultaneously with the relevant subnet of function close more than.Therefore, in an embodiment of the present invention, provide bridging device.Forward Fig. 2 A now to, show the block diagram of exemplary bridged equipment according to an embodiment of the invention.Bridger 200 comprises transmitter 205 and receiver 210, and they are suitable for by the employed RF work of each subnet (for clear, not illustrating among Fig. 2 A).What be connected to transmitter 205 and receiver 210 in operation is processor 215, and it can be universal or special computing equipment, is suitable for controlling the function of bridger 200.Should be appreciated that processor 215 can comprise single processor, perhaps it can comprise the processor of a plurality of parallel runnings.For example, in one embodiment of the invention, processor 215 comprises second processor that is used to control the first processor of RF transmission and reception and some I/O (I/O) and is used to control I/O, display and memory.

What be connected to processor 215 in operation is memory 240, I/O 225 and display 250.Memory 240 can be the data storage device of any kind, for example RAM, flash memory, ROM etc.I/O 225 is used for to bridger 200 input data or instructions or is used for the combination in any of the equipment of display status information, instruction etc.In addition, I/O 225 can comprise that data connect, and for example RS-232 connects etc., is used to connect external data source.For example, in one embodiment, bridger 200 receives time sequence information by I/O 225 from external equipment.Memory 240 can comprise the information that can be used in combination with this time sequence information.For example, memory 240 can comprise the sunrise and the sunset information in one or more geographical position, is handled in the situation of the time sequence information that receives by processor 215 then, makes that bridger 200 can be in sunrise and the predetermined behavior of execution at sunset.In another embodiment, this time sequence information can be bridger 200 inner generations.

Should be realized that the user can be mutual with bridger 200 by I/O 225 and display 250.In one embodiment, display 250 is LCD display, the prompting that it drives to user's display menu, and this user can be by I/O 225 and this menu mutual.Should be realized that, can use the display of any kind, keep simultaneously being consistent with embodiments of the invention.In addition, I/O 225 can comprise for example rocker switch, keyboard port, one or more buttons etc., and the user can handle, so that input information and response prompts displayed on display 250 are selected.It should further be appreciated that bridger 200 has shell (for clear, not illustrating) in Fig. 2 A, form this shell and make bridger 200 can be placed on all places.For example, bridger 200 can be placed invisible zone, for example in the storeroom, can strengthen perhaps that it is ornamental, so that be placed on the visibility region of room or building.

Bridger 200 a plurality of independently RF networks of link or the subnets of an embodiment, they move on identical frequency, shown in Fig. 2 B.For example, Fig. 2 B is two exemplary RF

lighting control subnet

220 and 230 block diagram according to an embodiment of the invention, they in operation by bridger 200 interconnection.Have master controller 11, lighting control equipment 12, repeater 13 and lighting apparatus 14 although

subnet

220 and 230 is shown, should be realized that, as mentioned above, only need comprise individual equipment according to the

subnet

220 and 230 of the embodiment of the invention.

As among Fig. 2 B as can be seen, subnet 220 is connected to subnet 230 via wireless connections A and B by bridger 200 in operation.As below in conjunction with what Fig. 3 to 7 discussed, use this bridger 200 to provide this ability: can when bridger 200 sends, on shared RF, not produce message collision near operation as subnet 220 and 230.In other words, when bridger 200 sent, it had eliminated the RF conflict between

subnet

220 and 230 by keeping another subnet of not communicating by

letter

220 or 230 static with

subnet

220 or 230 communication period.In addition, bridger 200 also provides the means that communicate with one another for

subnet

220 and 230, and can not make a subnet interrupt the communication of another subnet.Bridger 200 also allows

subnet

220 and 230 to operate as the system of independent operating, and the global operation between

separate subnet

220 and 230 also is provided simultaneously.

In one embodiment, relate on function that the light scene of

relevant subnet

220 and 230 realizes by bridger 200 " imagination " button.The imagination button is the virtual push button that is programmed to have specific function.This imaginary button can pass through for example I/O 225 programmings such as grade.In single or

multiple subnets

220 and 230, the specific imaginary button of can programming, to create the illumination scheme of customization, this scheme relates to for example top in conjunction with described lamp 14 lighting apparatus such as grade of Fig. 1.In such embodiment, global operation comprises that standard-sized sheet (ALL ON, all lighting apparatus open), complete shut-down (ALL OFF, all lighting apparatus cut out) and other can relate to the setting able to programme from any amount lighting apparatus of any amount subnet.Recited above a use

Among the embodiment of system, outside standard-sized sheet and complete shut-down, provide 15 kinds of settings able to programme.Although some embodiment (for example below in conjunction with the described embodiment of Fig. 4 to 7) use two subnets, should be realized that, use any amount of subnet all to be consistent with embodiments of the invention equally.Therefore, the imaginary button of bridger 200 can influence the equipment that two systems plant, and can be used in from master controller 11 or by another equipment (for example RS-232 equipment)

control subnet

220 and 230.

Single

In the subnet, the user starts light scene by the button of for example pressing the expression light scene on master controller 11.In response, master controller 11 sends the RF signal according to the predetermined set to this light scene to one or more lighting control equipments 12.On the contrary, in one embodiment of the invention, master controller 11 sends the identifier of the selected light scene of expression.Bridger 200 the signal that is received and imaginary button relatively, the light scene of described imaginary button corresponding stored in memory 240 for example.Then, bridger 200 sends to one or more lighting control equipments 12 in one or more subnets 220 and/or 230 with suitable RF signal.Therefore, the master controller 11 in a subnet can be controlled at the lighting control equipment 12 in all-

ones subnet

220 and 230.

In another embodiment, bridger 200 can use together with master controller 11, described master controller 11 with existing single subnet

The corresponding to mode of system is moved.For example, in certain embodiments, bridger 200 can add in the subnet 220 and/or 230 that is pre-existing in, and in conjunction with one or more equipment, comprises additional subnet.Should be realized that, when for example existing subnet has reached its capacity and need one or more additional subnet, this situation can occur.As a result, one or more master controllers 11 only can not be configured to response button and press down the transmission scene identifiers.In such embodiments, as below in conjunction with Fig. 3 to 8 discussed, master controller 11 to be sent such as bridger 200 finishes to send, and the imaginary button that sign is corresponding sends suitable RF signal to appropriate illumination control appliance 12 then.In such embodiments, although order can be sent to some lighting control equipments 12 by twice, once by master controller 11, once by bridger 200, but should be realized that bridger 200 is all same compatible with this master controller 11RF host-host protocol of two types.

In an embodiment of the present invention, use The RF host-host protocol.In this agreement, equipment is attempted avoiding the RF conflict by stand-by period and propagation delay time (backoff).Stand-by period is that the equipment that receives the RF signal is sending the time quantum that should wait for before the signal after this signal ended.Stand-by period is that transmitting apparatus is to the receiving equipment appointment.Propagation delay time also is that the equipment that receives the RF signal is sending the time quantum that should wait for before the signal after this signal ended.But the difference of propagation delay time and stand-by period is propagation delay time by receiving equipment hypothesis, rather than to the receiving equipment appointment.The equipment that receives the RF signal oneself specifies a propagation delay time of waiting for for it when detecting signal after this signal ended, disturb with any other RF signal so that avoid.In case propagation delay time is at the expiration, and if do not have other RF signal to receive, then if desired, this equipment can freely send.In one embodiment, the length of propagation delay time is what to determine at random, thus etc. equipment to be sent unlikely when propagation delay time expires, send the RF signal simultaneously.

Forward Fig. 3 now to, the flow chart that illustrates according to the illustrative methods of two RF lighting control subnet 220 of bridge joint of the embodiment of the invention and 230 is provided.In step 301, bridger 200 detects incident.This incident can be the RF transmission from master controller 11 in the subnet (subnet 220 among Fig. 2 for example recited above) or lighting control equipment 12.In addition, incident can be to press action etc. at bridger 200 from button on one's body by I/O 225.As cognoscible, if this incident is RF transmission, so this transmission can comprise the light scene identifier, to the order of lighting control equipment and/or or the like.In one embodiment, bridger 200 also can be set propagation delay time at random, thereby avoids disturbing with the RF transmission before proceeding to step 303-309.

In step 303, bridger 200 sends subnet activity (subnetaction) with " reservation " this work RF to subnet 220 and 230.In conjunction with what Fig. 4 to 8 discussed, the subnet activity normally starts with the link requirement as below.Link requires will to give an order to subnet 220 and 230 notices, in case and each

subnet

220 and 230 receive this link requirement, each equipment in each

subnet

220 and 230 stops to send and waits for transmission from bridger 200.As mentioned above, each equipment is all supposed a propagation delay time when receiving the RF signal that comprises the link requirement.In one embodiment, this propagation delay time is the random value in preset range.Except that link required, the subnet activity can comprise the one or more orders to one or more equipment.Therefore, the subnet activity can realize all or part of of light scene.As cognoscible, the subnet activity can also comprise family's identifier, device identifier etc.It should further be appreciated that in certain embodiments, the subnet activity repeats this subnet activity once or more times, receive with the safety of guaranteeing order.Also discuss as top, in one embodiment, the equipment of bridger 200 in targeted

subnet

220 and 230 sends random wait time.

In step 305, receive from for example affirmation of equipment such as master controller 11 and/or lighting control equipment 12.As cognoscible, in certain embodiments, if should confirm not to send as the part of the communication plan of embodiment, frame 305 can be optional.In step 307, determine for another subnet activity whether bridger 200 will be carried out on any subnet 220,230.If then this method is returned step 303, to send another subnet activity.After finishing all necessary subnet activities, in step 309, bridger 200 is waited at the device transmission time lapse.After this time, other equipment can freely send the RF signal as required.

Forward Fig. 4 now to, the exemplary sequential chart of bridge system according to an embodiment of the invention is provided.In system 400, frame 405 expression User Activities, frame 410 is illustrated in master controller 12 activities in the subnet 220, and

frame

415 and 420 is represented the activity of the bridger 200 in

subnet

220 and 230 respectively.Frame 425-460 illustrates example activity sequence according to an embodiment of the invention.Should be realized that the embodiment of Fig. 4 provides the example of overall button, one of them or more a plurality of equipment, for example lighting control equipment 12, lamp 14 etc. are influenced in two or more subnets 220 and 230.The example of this overall button is for example top in conjunction with described standard-sized sheet of Fig. 2 A-B and complete shut-down button.

At frame 425, the user presses the button, and in response, master controller 12 transmits signal at frame 430, indicates this button to be pressed.At frame 435, bridger 200 sends overall button signal in subnet 220.Conspicuous, frame 435 is equivalent to the frame 706-708,714,720 and 726 among Fig. 7 A, and the frame 725-756 among Fig. 7 B, and these will be discussed below.As cognoscible, processor 215 grades of bridger 200 can be searched the imaginary button of corresponding light scene in memory 240 grades when receiving the signal of frame 430.In other words, the scene of any pre-programmed of the imaginary button of the overall button on the master controller 12 in the subnet 220 in can corresponding bridger 200.Bridger 200 determine button that users press be subnet 200 this locality or for influencing the button of two

subnets

220 and 230, under the situation of this locality, carry out subsequently as following in conjunction with the described processing of Fig. 6 A-C, under the situation that influences two

subnets

220 and 230, carry out subsequently as following in conjunction with the described processing of Fig. 7 A-C.

In the embodiment of Fig. 4, as mentioned above,, in subnet 220, send overall button by bridger 200 at frame 435.Discuss as following, in one embodiment, frame 435 and frame 460 comprise that link requires, orders and be used for therein the time period of confirmation of receipt.At frame 460, in subnet 230, send overall button by bridger 200.In addition, should be realized that frame 460 is equivalent to the frame 710,712,716,718,722,724 and 728 among Fig. 7 A, and the frame 758-794 among Fig. 7 C, these will be discussed below.At frame 445,

subnet

220 and 230 is waited for link unimpeded (clear).Frame 445 for example can comprise to be waited for during propagation delay time in conjunction with the step 309 of Fig. 3 is described in the above.At frame 450, the display 250 of bridger 200 illuminates the indicating device 16 of master controller 12 etc. by for example LED.As cognoscible, the processing (as represented by frame 450) of illuminating LED etc. can also comprise the signal transmission of carrying out according to the method for Fig. 3.

At frame 455, start other LED or display device, for example display 250 and/or indicating device 16.Therefore, should be realized that embodiments of the invention allow as at first execution such as the illumination control commands of an overall button part, and delayed acknowledgement LED etc. are up to the end of these orders.In this way, utilize positioning indicator that the user not too the notes slight delay in upgrading to be cost, reduced the response time of lamp 14 grades that the user pays close attention to the most.

Cross-talk

Method among top Fig. 3 can be better understood in the embodiment of this method.Although following Fig. 5 to 7 only shows two

subnets

220 and 230, can recognize that any amount of subnet 220-230 can be by bridger 200 interconnection in operation.May increase although control the required time of a large amount of subnets, should be realized that, sequential chart only is the purpose that is used for example, and actual sequential chart can have more or less frame and/or functional block, carries out them and realizes desirable order.Therefore, embodiments of the invention provide communications framework, can implement Lighting Control Assembly on this framework.

Forward Fig. 5 now to, show the exemplary sequential chart that is used to overcome the communication protocol of cross-talk situation according to one embodiment of the invention.As what can find out from following Fig. 5 and Fig. 6 to 7, the time advances along the direction of time shaft.As cognoscible, Fig. 5 to 7 does not accurately draw in proportion, because any time, communication protocol or frequency all may influence the definite spacing of these frames.

Only there is the cross-talk situation in each equipment under the situation of mutual communication in a subnet, but another contiguous subnet with same frequency work can cause disturbing or " cross-talk ".Therefore Fig. 5 shows the basic communication incident that is included in device start wherein by 220 pairs of subnets, also has second subnet 230 simultaneously.This sequential chart shows the communication of avoiding cross-talk according to bridger 200.Shown in Figure 53 each bit stream, wherein each has been indicated in communication period subnet 220 that relates to bridger 200 and 230 sequential.

In an embodiment of the present invention, integrating step 307 and the 313 random wait times of discussing specify by starting subnet 220 above.Therefore, in the cross-talk example of Fig. 5, subnet 220 comprises equipment with which, specifies the stand-by period at random for it oneself, simultaneously subnet 230 is specified the maximum random wait time.Equally, each equipment in each

subnet

220 and 230 is supposed a propagation delay time at random when receiving the RF signal.Therefore, " worst case " among Fig. 5 is the propagation delay time of hypothesis maximum possible, and " best-case " is the possible propagation delay time of hypothesis minimum.Therefore, as cognoscible, the sequential of " worst case " of subnet 220 as shown by frame 502-518, occurs when the random wait time is the maximum possible value.Should be realized that, below Fig. 6 B, the 6C, 7B and the 7C that are discussed show the sequential of this worst case.

In one embodiment of the invention, four possible random wait and five propagation delay time values are arranged, they can distinguish designated or hypothesis.As cognoscible, any amount of stand-by period and/or propagation delay time value all are consistent with embodiments of the invention equally.In addition, in one embodiment, the value of stand-by period/propagation delay time is that link requires necessary a plurality of time quantum.Link requires (link claim) to measure for example five or 14 half circulations any time.According to an embodiment, when subnet 230 is specified maximum latencies, only need a sequential chart, as by shown in the frame 520-534.As can from Fig. 5 and below Fig. 6 to 7 find out that solid box is represented actual RF transmission, frame of broken lines represents the RF sequential.

When bridger 200 sent, bridger 200 hypothesis propagation delay times were zero, therefore allow bridger 200 can send immediately once finishing in order.As cognoscible, this configuration makes bridger 200 can keep control to

subnet

220 and 230, because bridger 200 can at first send after command execution all the time.In case propagation delay time at the expiration,, then can keep free to guarantee RF to the

subnet

220 and 230 link requirement that retransfers if there is second order to carry out.Then, this order is retransmitted to request subnet 220 and correspondingly carries out.Therefore, although two

subnets

220 and 230 have all received the message that order arrives, have only request subnet 220 actual reception and carry out this order.

Therefore, when subnet 220 receives order, bridger 220 all transmits the link requirement to two

subnets

220 and 230, so that " reservation " this work RF.As cognoscible, and as mentioned above, the order that receives from subnet 220 can comprise scene identifiers.As an alternative, this order can comprise the order to equipment in the subnet 220 (for example lighting control equipment 12), so that realize desirable light scene.Initial link to subnet 220 requires by frame 502 and 502 ' expression the link requirement of subnet 230 to be represented by frame 520.Frame 504 and the state of 504 ' expression subnet 220 when requiring wait command according to link.Keep this RF by subnet 220, its communication capacity of subnet 230 temporary suspensions is so that bridger 200 can be communicated by letter under the situation that does not have interference with subnet 220.

The order that frame 506 and 506 ' expression are transmitted by subnet 220, simultaneously at frame 522, subnet 230 continues to wait for.For example, the link that frame 522 expression subnets 230 bases have received at frame 520 requires at wait command, but as cognoscible, this order does not arrive.As a result, subnet 230 keeps static, and this makes bridger 200 can communicate by letter under the situation that does not have message collision to threaten with the equipment in the subnet 220.At frame 508 and 508 ', specify to subnet 220 the random wait time of worst case and best-case respectively, and specify maximum latency to subnet 230 at frame 524.As what discussed, in the present example, are any time amounts less than the maximum possible random wait time for the random wait of the worst case of subnet 220 below in conjunction with Fig. 6 and 7.

In the example communication incident of Fig. 5, order is retransmitted automatically, is correctly received by all devices to guarantee it, thereby at frame 510,510 ' and 526, transmits the second link requirement to

subnet

220 and 230 respectively.At frame 512 and 512 ', order is retransmitted to subnet 220, simultaneously at frame 528, and subnet 230 wait commands.Should order confirm then, as represented by frame 514 and 514 ' by all devices in the subnet 220.Any method that transmission, reception and collecting device are confirmed all is consistent with embodiments of the invention equally.

As cognoscible, the affirmation correspondence of the worst case of frame 514 for example has the subnet of large number quipments.Described in the above

In the situation of system,, can obtain the longer affirmation time along with near 32 equipment of maximum quantity.Simultaneously, at frame 530, subnet 230 continues to wait for.At frame 516 and 516 ', the exchange bitmap is to guarantee that for example the display 16 of the master controller 11 of subnet 220 upgrades.At frame 532, subnet 230 continues to wait for.Finish part in command sequence, subnet 220 is in frame 518 ' (expression minimum transfer time delay) and duration of waiting for the propagation delay time of its hypothesis at frame 518 (expression maximum transmitted time delay).Equally, at frame 534, subnet 230 is waited for the duration of its propagation delay time.

As cognoscible, and as mentioned above, the function of one embodiment of the invention is during subnet 220 receives and carries out its order, forbids that subnet 230 is with this RF communication.According to this embodiment, subnet 230 must wait for, up to it propagation delay time at the expiration, and this RF is open and available before it can attempt communicating by letter.

Order in succession to same subnet

In certain embodiments, and as mentioned above, bridger 200 can also be zero to keep the control to the RF in a plurality of subnets by the duration of hypothesis propagation delay time.This allows bridger 200 to identical subnet or different subnet transmission orders in succession.For example, when pressing two overall buttons, repeat to transmit a process of commands in order to pass second order.As the situation among Fig. 5, bridger 200 stops non-request subnet (for example subnet 230) to send, and simultaneously these two orders is sent in succession request subnet 220.

Forward Fig. 6 A now to, show according to one embodiment of the invention and be used for realizing the exemplary sequential chart of the communication protocol of order in succession at single subnet.Fig. 6 A shows serial command is sent to processing in the same subnet, and for the purpose of example, this subnet is a subnet 220.Frame 602-612 represents the RF transmission of subnet 220, the RF sequential of

frame

614 and 616 expression subnets 220, the RF transmission of

frame

618 and 620 expression subnets 230, the RF sequential of

frame

622 and 624 expression subnets 230.

At frame 602, on for example master controller 11 or bridger 200, press main button.At frame 604, propagation delay time at random takes place, require to be sent to subnet 220 up to link, and be sent to subnet 230 at frame 618 at frame 606, subnet 220 is at frame 614 wait commands simultaneously.At frame 608, send first order be used for realization example overall situation button, limit maximum latency simultaneously less than as an example 4 units, as what discuss more in detail in conjunction with Fig. 6 B below.Should be appreciated that frame 608 is equivalent in the above in conjunction with the described frame 506-516 of Fig. 5 on function.Simultaneously, subnet 230 is waited at frame 622.Because will send second order, send the link requirements at frame 610 and 620, frame 620 appears when subnet 220 during at frame 616 wait commands wherein.At frame 612, send second order be used for realization example overall situation button 2, as in conjunction with Fig. 6 C more detailed argumentation.Simultaneously, subnet 230 is waited at frame 624.

According to handling similar mode with the top described individual command of Fig. 5 that combines, after the signal that receives from subnet 220, transmit the link requirement to two

subnets

220 and 230 by bridger 200, be used to ask subnet 220 to keep RF.When finishing first order, non-request subnet 230 is specified the largest random stand-by period, simultaneously request subnet 220 is specified the random wait time.Because request subnet (subnet 220) has the littler stand-by period, can transmit another link requirement to subnet 230, so that can handle the button press action of any queuing.The appointment of this largest random stand-by period to subnet 230 is to provide the means of keeping the ability that the control of RF and continuation are communicated by letter with subnet 220 for bridger 200.Then, the corresponding execution of finishing order.In case carry out and finished final order by bridger 200, then suppose propagation delay time at random by the equipment in

subnet

220 and 230.

Therefore, forward Fig. 6 B to, show the details of overall button 1, Fig. 6 A center 606,608,614,618 and 622.As what can find out from Fig. 6 B, the RF transmission by frame 625-640 shows subnet 220 is shown the RF transmission of subnet 230 by frame 642-656.The first and second link requirements occurred at frame 625,626 and 642, comprised that subnet 220 wait commands send the time that second link requires simultaneously in subnet 230.At frame 628, this order is transmitted to subnet 220, and subnet 230 is at frame 644 wait commands simultaneously.Then, specify the random wait time at 630 pairs of subnets of frame 220, in the exemplary embodiment of Fig. 6 B, this time is certain time quantum less than the largest random stand-by period, as shown in Fig. 6 B being " max-1 ", to indicate less than a peaked stand-by period.Should be realized that, all be consistent with embodiments of the invention equally less than any time of maximum latency amount.

At frame 646, subnet 230 is specified maximum latency.Then, in conjunction with what Fig. 4 discussed, at frame 632-636, send another link requirement as in the above, repeat this order, collect from subnet 220 and confirm, simultaneously at frame 648-652, subnet 230 is waited for.Collect bitmap at frame 638, simultaneously at frame 654, subnet 230 is waited for.At last, in

frame

640 and 656,

subnet

220 and 230 is waited for the duration of the propagation delay time of their hypothesis respectively.

Forward Fig. 6 C now to, as cognoscible, the details of overall button 2, the frame 610,612,616,620 and 624 among the corresponding diagram 6A is according to occurring in conjunction with identical mode as described in Fig. 6 B as top.As what can find out from Fig. 6 C, the RF of subnet 200 transmission is illustrated by frame 658-674, and the RF transmission of subnet 230 is illustrated by frame 676-690.First and second links require to appear at frame 658,660 and 676, and it comprises subnet 220 wait commands and send the time that second link requires in subnet 230.At frame 662, order is sent to subnet 220, simultaneously at frame 678 subnets 230 wait commands.Then, specify the random wait time at frame 664 to subnet 220, in Fig. 6 B, this time is the time quantum less than the largest random stand-by period, specifies maximum latency at frame 680 in subnet 230 simultaneously.Then, in conjunction with what Fig. 4 discussed,, send another link requirement, repeat this order, and collect affirmation, wait at frame 682-686 subnet 230 simultaneously from subnet 220 at frame 666-670 as in the above.As the situation among top Fig. 6 B, collect bitmap at frame 672, subnet 230 is waited at frame 688 simultaneously.At last, in frame 674 and 690, subnet 220 and 230 is waited for the duration of the propagation delay time of their hypothesis respectively.

Order in succession in different sub-network

As top in conjunction with the described situation of order in succession that in same subnet, realizes of Fig. 6 A-C, in the embodiment of two subnet systems, bridger 200 will require to respond the button of autonomous controller 11 to press action by transmitting link to subnet 220 and 230, be used for communication to keep this RF.Comparing in conjunction with the shown method of Fig. 7 A-C with top, is to carry out the position of second order and transmitting the extra link requirement of adding before second order in the difference between switched sub-networks 220 and 230.As being discussed in conjunction with Fig. 7 A-C below, it is to guarantee that RF is unimpeded before transmitting Next Command that this extra link requires.Bridger 200 has the flexibility that another order is sent to subnet 220 or subnet 230 like the open RF.

Forward Fig. 7 A now to, show and stride two

subnets

220 and 230 according to one embodiment of the invention and realize the exemplary sequential chart of the communication protocol of order in succession.Fig. 7 A shows and will order the processing that is sent to two different sub-networks in succession, and for the example purpose, described subnet is subnet 220 and 230.Frame 702-712 represents the RF transmission of subnet 220, and frame 714-718 represents the RF sequential of subnet 220, and frame 720-724 represents the RF transmission of subnet 230, and frame 726-728 represents the RF sequential of subnet 230.As the situation of the frame 602 among Fig. 6 A recited above,, on for example master controller 11 or bridger 200, press main button at frame 702.At frame 704, propagation delay time at random takes place, require to be sent to subnet 220 up to link, and be sent to subnet 230 at frame 720 at frame 706, subnet 220 is at frame 714 wait commands simultaneously.

At frame 708, send first order that is used for realization example overall situation button 1, limit the random wait time simultaneously less than the largest random stand-by period.Simultaneously, wait at frame 726 subnets 230.Because order this moment second will be dealt in the subnet 230, therefore all sends the link requirement at

frame

710 and 722 pairs of two

subnets

220 and 230, wherein, carry out frame 722, the while is at frame 716 subnets 220 wait commands.At frame 712, different with the example of Fig. 6 A, second link requires to be sent to subnet 220, to prevent that maximum wait period at the expiration before frame 724 bridgers 200 are accomplished to all orders in the subnet 230.Therefore, at frame 728, subnet 230 wait commands.In addition, second link requires to guarantee to line up in this subnet from any pending RF business of

subnet

220 or 230, to avoid message collision.Therefore, bridger 200 guarantees that it will keep control to each

subnet

220 and 230, sends newer command simultaneously and/or switches between

subnet

220 and 230.

Should be realized that the necessity that sends the second link requirement in subnet 220 is to create the result of minimum possibility stand-by period after link requires.When bridger 200 during only with a subnetwork communicating, this subnet for example is a subnet 220, and as the situation among the situation among top Fig. 6 B-C and the following Fig. 7 B, the wait period of subnet 230 will not allow it to begin to send on the RF link when subnet 220 is movable.Yet, as the situation among following Fig. 7 C, when subnet 220 receives the link requirement, wait for that then subnet 230 receives link requirement and order, wait for that then largest random etc. bides one's time, if personal attendant's machine that subnet 230 is designated waits near largest random is waited for, might can before finishing, subnet 230 begin to send the RF signal by subnet 220 so.Therefore, second link to subnet 220 requires to guarantee that the RF link keeps unimpeded.Refer again to Fig. 7 A,, send second order be used for realization example overall situation button, as in conjunction with the more detailed argumentation of Fig. 7 C at frame 724.Simultaneously, wait at frame 718 subnets 220.

Forward Fig. 7 B now to, the details of overall button is shown, the frame 706,708,714 and 720 among the corresponding diagram 7A.As what can find out from Fig. 7 B, the RF of subnet 220 transmission is illustrated by frame 725-740, and the RF transmission of subnet 230 is illustrated by frame 742-756.The first and second link requirements occur at frame 725,727 and 742, comprise that subnet 220 wait commands send the time that second link requires simultaneously in subnet 230.At frame 728, this order is sent to subnet 220, simultaneously at frame 742, and subnet 230 wait commands.Then, specifying the random wait time at frame 730 to subnet 220, should be a chronomere less than the largest random stand-by period time in the exemplary embodiment of Fig. 7 B, simultaneously at frame 746, specified the largest random stand-by period to subnet 230.Then, at frame 732-736, send another link requirement in conjunction with what Fig. 5 and 6B discussed as top, iterated command, and from subnet 220 collection affirmations, wait at frame 748-752 subnet 230 simultaneously.At frame 738, collect bitmap, simultaneously at frame 754, subnet 230 is waited for.At last, in frame 740 and 756, subnet 220 and 230 is waited for the duration of the propagation delay time of their hypothesis respectively.

Forward Fig. 7 C now to, should be appreciated that, the frame 710,712,716,718,722,724 and 728 among the details corresponding diagram 7A of overall button 2 is according to occurring in conjunction with identical mode as described in Fig. 7 A-B as top.Can find out that from Fig. 7 C the RF transmission of subnet 220 is illustrated by frame 758-776, the RF transmission of subnet 230 is illustrated by frame 778-794.First and second links require to appear at frame 758,760 and 778, and it comprises subnet 220 wait commands and send the time that second link requires in subnet 230.As top described,, send the 3rd link and require (in the subnet 220 second), simultaneously at frame 780 subnets 230 wait commands at frame 762 in conjunction with Fig. 7 A.At frame 782, order is sent to subnet 230, simultaneously at frame 764, and subnet 220 wait commands.Then, specify the random wait time at frame 784 to subnet 230, in Fig. 7 B, this time is the time quantum less than the largest random stand-by period, specifies maximum latency at frame 766 to subnet 220 simultaneously.Then, in conjunction with what Fig. 5 discussed,, send another link requirement, repeat this order, and collect affirmation, wait at frame 768-772 subnet 220 simultaneously from subnet 230 at frame 786-790 as in the above.Collect bitmap at frame 792, subnet 220 is waited at frame 774 simultaneously.At last, in frame 776 and 794, subnet 220 and 230 is waited for the duration of the propagation delay time of their hypothesis respectively.

Therefore, the method and system of the illuminator that is used for the one or more RF controls of bridge joint is provided.Although described the present invention in conjunction with the exemplary embodiment in each accompanying drawing, but should be appreciated that, can use other similar embodiment, perhaps can make amendment and replenish described embodiment, be used for carrying out and identical functions of the present invention, and do not depart from the present invention.For example, those of skill in the art will recognize that described in this application the present invention can be applicable to the electronic equipment of any kind of radio communication on identical RF, use and need not be confined to illumination.Therefore, the present invention should not be confined to any single embodiment, and should think in the scope according to the broad of claims.

Claims

1. wireless Lighting Control Assembly comprises:

First lighting control subnet is connected to first lighting apparatus in operation;

Second lighting control subnet is connected to second lighting apparatus in operation, wherein first and second lighting control subnet operate on the identical radio frequency (RF); And

Bridger, wirelessly and operatively communicate by letter with first and second lighting control subnet and first and second lighting control equipments, wherein, described bridger sends the subnet activity to this first and second lighting control subnet, transmits from described bridger so that first and second lighting control subnet are waited for.

2. the system as claimed in claim 1, wherein said subnet activity are the link requirements.

3. the system as claimed in claim 1, wherein said bridger response detects the RF signal and sends described subnet activity.

4. system as claimed in claim 3, wherein, described bridger is further waited for propagation delay time, and to the order of first lighting control subnet transmission about first lighting apparatus.

5. system as claimed in claim 3, wherein said RF signal comprise be stored in described bridger in the relevant light scene identifier of light scene.

6. system as claimed in claim 5, wherein, described RF signal comprises the illumination command relevant with light scene, and wherein said bridger is determined the light scene relevant with this illumination command.

7. system as claimed in claim 5, the button that responds on the master controller in described first lighting control subnet is pressed, and sends described detected RF signal by described first lighting control subnet.

8. system as claimed in claim 8, wherein said bridger also comprises display, wherein said display is indicated the state of this first and second lighting apparatus.

9. the system as claimed in claim 1, wherein said first lighting control subnet comprises master controller.

10. system as claimed in claim 9, wherein, described master controller comprises indicating device, the state of this first lighting apparatus of wherein said indicator for displaying.

11. system as claimed in claim 50, wherein said first lighting control subnet comprises lighting control equipment.

12. system as claimed in claim 11, wherein said lighting control equipment is a dimmer.

13. the system as claimed in claim 1, wherein said bridger is connected to external equipment in operation.

14. system as claimed in claim 13, wherein said bridger is connected by RS-232 and is connected to described external equipment in the operation.

15. system as claimed in claim 13, wherein, described bridger is from described external equipment receiving time information, and the temporal information that response receives sends the subnet activity.

16. system as claimed in claim 13, wherein, described bridger response sends the subnet activity from the warning that described external equipment receives.

17. the system as claimed in claim 1, wherein, described bridger receiving time information determines when according to the position of described bridger to arrive sunrise and sunset time, and sends the subnet activity with respect to described sunrise and sunset time.

18. a method comprises:

Send the subnet activity to first and second lighting control subnet that operate on the identical RF, the movable indication of wherein said subnet first and second lighting control subnet are waited for the transmission that receives from described bridger.

19. method as claimed in claim 18 further comprises: send the illumination control command to first lighting control subnet.

20., further comprise: first lighting control subnet was specified for first stand-by period, and second lighting control subnet was specified for second stand-by period as the described method of claim 68.

21. being the buttons on the response illumination control bridger, method as claimed in claim 18, wherein said forwarding step press.

22. method as claimed in claim 18, wherein said forwarding step are the RF signal of response detection by the master controller transmission of first lighting control subnet.

23. method as claimed in claim 22, wherein said RF signal comprise be stored in described bridger on the relevant light scene identifier of imaginary button.

24. method as claimed in claim 22, wherein said RF signal comprise the second illumination control command relevant with light scene.

25. method as claimed in claim 22, wherein said RF signal is pressed and is sent by described master controller response button.

26. method as claimed in claim 24 also comprises: determine the imaginary button relevant with light scene according to described illumination control command.

27. method as claimed in claim 18 also comprises:, on bridger, show the state of each subnet according to this affirmation.

28. method as claimed in claim 18 also comprises:

Receiving time information;

According to institute's canned data and the temporal information that is received, determine sunrise and sunset time; And

According to the activity of described definite transmission subnet.

29. method as claimed in claim 18 also comprises: receiving time information and respond this temporal information and send the subnet activity.

30. method as claimed in claim 18 also comprises:

Receive alarm signal; And

Send the subnet activity according to described alarm signal.

31. a bridger comprises:

Transmitter is used for sending message to first and second lighting control subnet, and wherein said first and second subnets operate on the predetermined RF;

Receiver is used for receiving message from this first and second subnet of being scheduled on the RF;

Memory is used for stored information;

Input-output apparatus is used for receiving or transmission information; And

Processor, wherein, described processor is connected to described memory, transmitter, receiver and input-output apparatus in operation, and wherein said processor makes described transmitter send the subnet activity to first and second subnets, waits for illumination command to indicate this first and second lighting control subnet.

32. bridger as claimed in claim 31, wherein said processor also make described transmitter send for first order and the random wait time to first subnet, and send the largest random stand-by period to second subnet.

33. bridger as claimed in claim 31, wherein said processor also by described receiver from the first subnet confirmation of receipt.

34. bridger as claimed in claim 31, wherein said subnet activity are the link requirements.

35. bridger as claimed in claim 34, wherein said processor response sends the link requirement by the signal that receiver receives from master controller in first subnet.

36. bridger as claimed in claim 34, wherein, described processor also sends the second link requirement by transmitter to first and second subnets, send the 3rd link requirement to first subnet, sent for second order and the second random wait time to second subnet, and sent for the second largest random stand-by period, and receive second by receiver from second subnet and confirm to first subnet.

37. bridger as claimed in claim 34, wherein, described input-output apparatus is suitable for receiving alarm signal, and described processor is suitable for responding this alarm signal and transmits described link requirement.

38. bridger as claimed in claim 31 also comprises display device, is used for the presentation information to the user.

39. bridger as claimed in claim 38, wherein said display device present the state information relevant with first and second subnets.

40. bridger as claimed in claim 38, wherein said display device is a lcd screen.

41. bridger as claimed in claim 38, wherein said display device is a light-emitting diode display.

42. bridger as claimed in claim 31, wherein said RF are one of 390MHz, 418MHz or 434MHz.

43. being RS-232, bridger as claimed in claim 31, wherein said input-output apparatus connect.

44. bridger as claimed in claim 31, wherein said processor also send order by first subnet of transmitter on predetermined RF.

45. bridger as claimed in claim 38, wherein, described first subnet comprises first master controller and first lighting control equipment, and described second subnet comprises second master controller and second lighting control equipment.