Background technology
Such method is used to the operating means of controlling light emitting device and is used in the illuminator: come the break-make luminescent device and regulate brightness by central control unit.Usually, this moment will be by the operating means controlling light emitting device.Operating means is united in groups and can be controlled by one or more central control units.Not only represent gaseous discharge lamp with term " luminescent device ", also represent Halogen lamp LED or light-emitting diode (LED).Such luminescent device can be arranged in the photophore separately or together with other luminescent device, and this photophore also can comprise this operating means.
In modern illuminator, send digital control instruction by central control unit to operating means usually.By these external control instructions, especially can stipulate brightness value, so that obtain different illuminating positions.Operating means can be equipped with an address, is used to realize by the independent of central control unit or grouping control.
The control method of another extensive use is according to DALI (the luminous interface of digital address) standard control illuminator.This standard is defined for the interface and the transformat of digital control operating means, wherein for a plurality of independently operating means, and can specified address.Operating means can be by external control instruction by break-make or carry out brilliance control, and can start a special operating conditions such as Emergency Light state and inquiry error reporting.
The DALI standard is 16 Manchester codes, and it has realized the maximum dimmer speed when changing less than 0.7 second from 1% to 100% brightness.High level is positioned at almost 16V scope, and low level is in the voltage that is almost 0 volt.
Is setting (65 addresses that are used for a zone) according to the control of DALI standard with the restricted number of the presumable address in the illuminator.This quantity especially usually is not enough for the illuminator of the luminescent device that comprises different colours.Therefore, in the illuminator that now address is had higher requirements, stipulated illuminator is divided into a plurality of subsystems, but this division requires the control device of greater number, therefore not only improved the cost of setting up this illuminator, and having improved the complexity of control device, multistage illuminator must be controlled and monitor to this control device in the case.
By using new luminescent device such as light-emitting diode, can obtain the various application of illuminator, especially can realize the blend of colors and the change color of illuminator.By using various multicolor luminous devices, can realize color change according to such control method.In such color lighting, can and mix the light of multicolor luminous device by the coupling of corresponding optical element.Heterogeneous light mixing especially can be in a photophore or the combination by a plurality of photophores realize.This color change may require the coupling of brightness pace of change.
Open source literature DE102006001256A1 has described a kind of method, is used for regulating according to luminance instructions the brightness of luminescent device.According to this method, operating means is monitored the time sequencing of luminance instructions and is made this time sequencing of velocity adaptive of the brightness variation that is started by control command.
When low-light level, the observer can perceive brightness well and change.Therefore, especially it is important when slowly carrying out that in the brightness variation brightness changes and carries out continuously in the very little mode of intensity level step-length.The observer may feel that it is undesirable that brightness step by step changes.When utilizing multicolor luminous device to be used to change the color of illuminator or photophore, especially true when the user can feel very little change color.
According to the DALI standard, have only the intensity level of limited quantity to supply brightness regulation used according to the predetermined brightness instruction.A limited number of intensity levels are restriction luminance area and the convertible speed that is used for the brightness variation when being used to color change especially.
According to DE102006001256A1, can realize the speeds match that the brightness expected changes really, still, only realization speed of this method improves, and but, can't increase intensity level quantity.And according to DE102006001256A1, existing transformat is used to transmit control command.Maximum transmission rate and and then brightness change maximum speed was restricted and was subjected to existing transformat because of the use that has transformat now constraint.
Current illuminator requires to use the control method of general standard as illuminator and the operating means that comprised thereof.This standardized method changed or revise mean that the user pays sky high cost when the practicability.Not only the manufacturer of the manufacturer of corresponding operating device and control unit must make its product adaptation in unified standard, and especially photophore manufacturer and installation and use the professional person of this illuminator need learn corresponding standard and observe corresponding requirement of client.
Summary of the invention
Task of the present invention provides a kind of method, and this method can be come the control operation device by a control unit, but above-mentioned defective do not occur, in other words, has obviously alleviated above-mentioned defective.
For method, according to the present invention, finish this task by the characteristic feature of claim 1, for the device of the above-mentioned type,, finish this task by claim 12,17 and 23 characteristic feature according to the present invention.Particularly preferred execution mode of the present invention has been described in the dependent claims.
The controlling schemes of operating means of the present invention can adopt first control command transmission of standard transmission formats according to the rules selectively based on following conception, perhaps also can select to adopt second transformat different with first transformat by the user.At this moment, two kinds of transmission are finished by digital control instruction, and this control command sends at least one operating means by one or more central control units.
In this way, can not only select respective transmissions corresponding to the standard transmission formats of being set up, with the control unit of acquisition illuminator and the high as far as possible compatibility of operating means, and can select the specific (special) requirements of adaptating lighting system and the transmission that changes and utilize second transformat, and use it for the transmission of control command.
Preferably, the transmission rate of these two kinds of transmission is different.Therefore for an application scenario that requires brightness to change at a high speed, can select to be used for second transmission than the higher transmission rate of first transmission that can be used for according to the standard of being set up.Preferably, transformat itself can be different aspect edge steepness, level height or the signal figure place of its signal.
But, second transmission that can freely select can be characteristics with additional control command also, and additional control command can provide other possibility for the control of operating means.Because the control command that should add for example can utilize the transmission of additional transmitted form to realize the address of greater number or the intensity level of greater number by this.
According to the present invention, control command is not only and can be transferred to the going code of operating means, open command or new brightness value, and can comprise extend information.Especially, as control command, can transmit color information color instruction in other words, address, state information or fault-signal.
According to the present invention, the user can be transmitted in the control device adjusted this moment.The user can select the transmission according to the standard of being set up, and perhaps drafts second transmission.By the transmission rate of convergent-divergent first transmission, obtain the advantageous applications of the transmission that can freely select.Preferably adjust the multiplication of first transmission rate, especially, the user can select the double growth or the three multiplication length of transmission rate.
Utilize the transmission of first transmission rate multiplication preferably to select by special control command.This control command not only is sent to continuous control device, also is sent to operating means.After receiving these special control commands, control device and/or operating means come its transmission of conversion according to control command.
An alternative solution is, imposes a condition by user or other, can give at least one control device the transmission that will select.Other user of illuminator comes self adaptation to regulate transmission means according to the transmission of being discerned, so that the transmitting-receiving control command.In the following description, operating means or the control device that joins with bus is called as the user.At this moment, after control command transmission beginning, preferably other user by illuminator analyzes transmission.
The invention still further relates to a kind of illuminator, it comprises that a control device and at least one are used for the operating means of operating light-emitting device, and wherein, this control device can send the digital control instruction of at least two kinds of different transpost formats.
The invention still further relates to a kind of device that is used for receiving control command by the operating means of luminescent device.This operating means has the drive circuit that is used for the operating light-emitting device.In order to receive and the Evaluation and Control instruction, operating means has interface circuit.According to the control command of being received, operating means can come the work and the brightness of controlling light emitting device by drive circuit.
According to a particularly preferred embodiment, operating means can be monitored transmission and analyze transmission according to the control command of being received by its interface circuit.According to the transmission situation of being discerned, operating means can be adjusted its interface circuit to adapt to this transmission.The identification of transmission can be preferably carried out according to the evaluation to the transmission rate of the control command received.
According to another preferred embodiment, a kind of control device that is used for illuminator also can receive the digital control instruction of at least two kinds of different transpost formats, wherein, this control device can come automatic identification control instruction by which kind of transformat to send according to the digital control instruction of being received.
Embodiment
Below will the present invention be described according to the embodiment of the operating means of LED.But the present invention can be used in all types of luminescent device operating means.In addition, can use distinct luminescent device, especially can adopt the light-emitting diode of gaseous discharge lamp, Halogen lamp LED or organic or inorganic.
In operating means shown in Figure 11, has control circuit 2, all functions of the building block of this control circuit control and monitoring operating means 1 as central unit.Especially, control and monitor and particularly also adjust the work of converter 3.Converter 3 is connected with power supply network 20 by joint and receives the needed electric energy of luminescent device work.And it is the brightness of work, the especially luminescent device of controlling light emitting device also.As luminescent device, the LED lamp is connected with the converter 3 of operating means 1.Converter 3 also is responsible for correct receiving from the electric power of power supply network 20 of task, and this electric power can be by power supply unit fixed condition setting really.This task may relate generally to High-frequency Interference and realize less receiving for sine-shaped electric current as far as possible as far as possible.Therefore converter 3 can comprise and be used to avoid the so-called filter of High-frequency Interference and be used for the circuit that effective power factor is proofreaied and correct that High-frequency Interference may come from power supply network 20, or may be produced by converter 3.In addition, converter 3 guarantees that the LED lamp works in accordance with regulations.Especially, it can regulate or adjust the electric current and/or the voltage of LED lamp.In a particular embodiment, converter 3 also can be configured to multilevel converter, is used for different task is distributed to a plurality of levels of converter 3.Preferably, guarantee the correct electric current that receives from power supply network 20, the work of the level control LED lamp of a back by a level.Power supply network 20 can be the low-frequency ac voltage of 230V voltage or the direct voltage of 24V.According to the type of power supply network 20, converter 3 can be constructed to dc dc converter or exchange rheology parallel operation always.In a particularly preferred execution mode, converter 3 can comprise an electric storage means (Cbus), this electric storage means can by store electricity perhaps rechargeable battery constitute.
Operating means 1 and control device 10 are parts of illuminator A.
Control circuit 2 also links to each other with interface circuit 4.Interface circuit 4 is connected with bus 21.Transmit the control command of sending by control device 10 by bus 21.This control command receives and is transferred to control circuit 2 by interface circuit 4.This control command can be estimated and store to control circuit 2.According to the control command that is sent, control circuit 2 can be by the work of converter 3 control LED lamps.Control circuit 2 can also be monitored the work of LED lamp and converter 3, is breaking down or during special event, finds that fault or special event also send the control corresponding instruction by interface circuit 4 and bus 21 to control device 10.In addition, other control device 11 can be connected to bus 21. Different control device 10 and 11 can be different transducer, for example motion sensor or luminance sensor, also can be can be by the actuator of user control for example switch, button, perhaps also can be the touch-screen that comprises the user interface of the control that is used to throw light on.
Control circuit 2 can comprise memory 8 or be controlled at external memory storage 8 in the operating means 1.
Bus 21 is designed to the two-wire data wire, and its transmission is as the digital signal that contains low dc voltage of control command.By bus 21, for example transmit transfer of data according to the DALI standard.Interface circuit 4 and control device 10 can receive the control command according to the DALI standard.But,, can select to comprise the transmission of other parameter as substituting of the transfer of data of transmitting according to standardization according to the present invention.Can carry out transfer of data according to the DALI standard by operating means 1 and control device 10, the building block of illuminator can obtain very high compatibility.Thus one, for the user provides a large amount of control and operating means and can be for the use of different application purpose from different suppliers, the user can select described device at corresponding illuminator as required.
According to the present invention, can be different from another transmission means of DALI standard by bus 21 transmission.
For example, the transmission rate that is used for control command can subtract with many multiplications, it is desirable to, and transmission rate is double or three multiplications are long.As an alternative or supplement, the edge steepness of the signal that is transmitted increases and decreases at double, it is desirable to, and edge steepness is big with twice or three multiplications.As other possibility mode that changes transmission, the amplitude of signal to be transmitted can change according to similar manner.
Notice that the transfer of data of control command not necessarily connects mode by bus 21 with line to be finished, but can for example come wireless transmission by wireless link, or transmits by power supply network 20 by power line carrier, PLC (PLC).For above-mentioned transmission variant, exist respectively to be similar to the standardization transmission method of line transfer of data with the DALI standard, wherein according to the inventive method, the transfer of data that can change by identical bus 21.
Variation can be stipulated to control device 10 by the user.At this moment, the user can be by ordering to provide for example transmission rate variation coefficient to control device.
This order is a special control command.Control device is ordered adjustment according to the user subsequently, and it is transferred to control command the transmission rate of bus 21.According to same way as, for example also can adjust edge steepness or transmission amplitude.Before control device 10 is adjusted its transmission, can tell of the change of other control device 11 by bus 21 according to specific control command with operating means 1 transmission that links to each other.Other control device 11 and the operating means that joins are also referred to as bus user below 1.
In a substitute variants scheme, control device 10 can be adjusted its transmission rate and be transferred to other bus user by starting the control command that will comprise adjusted transmission rate the first time of user or existing transducer through bus 21 in control for the first time after adjusting transmission rate according to the rated condition that is used for its transmission rate to be selected.The transmission rate of the control command that this bus user monitoring bus and analysis are received.According to this transmission rate, other bus user can also be adjusted its transmission rate.And the sending of the reception of control command and control command can be adjusted and be adapted to the transmission rate obtained.Particularly preferably be, reformed transmission rate is many times of the first standardization transmission rate.In the case, bus user can be according to selecting corresponding to the scheduled transmission speed of measured value in the reference table of transmission rate from be stored in control circuit 2 of measuring and adjusting its transmission thus.Such reference table can be stored in 8 li of memories that are arranged in operating means 1.According to the specific control command of control device 10, reference table can be adjusted or expand.By presumable transmission rate being restricted to many times of first (standardization) transmission rate, can reduce the risk that in transmission, breaks down because of the transmission rate deviation.Such transmission rate deviation may be caused by the temperature fluctuation that the components and parts error maybe may have influence on the element of interface circuit 4.By presumable transmission rate being fixed to many times of first (standardization) transmission rate, can combining with the storage of predetermined transmission rate and obviously reduce the transmission fault risk.
Under the situation of this embodiment, control circuit 2 reads by the control command of control device 10 through bus 21 transmission from interface circuit 4.At this moment, control circuit 2 can be temporarily stored in the control command that is received in the memory 8 and according to its transmission rate and analyze.Transmission rate is by long qualification the in position of each part of control command.
An example of such transmission will illustrate according to Fig. 3 subsequently.
Control circuit 2 analysis and Control instruction and can adjusting subsequently is used for due-in subsequently or waits the transmission rate of the control command sent out.
Perhaps, control device 10 can change the transmission rate that maximal rate is come automatic calculating optimum according to the brightness of expectation, and this brightness changes and can be stipulated by the programming of the order of different brightness values or other lighting parameter by the user.Like this, can obtain in required brightness pace of change and the maximum best compromise that allows between the transmission rate of secure data transmission.
By adjusting transmission rate, this illuminator can adapt to special user's requirement better.Therefore, for example can realize changing, to change brightness by the brightness faster of control command order faster by the multiplication of transmission rate.
Perhaps, also can obtain the intensity level of greater number or the address of greater number by increasing transmission rate.Therefore, for example can also increase the data length of control command to be transmitted in conjunction with the increase of transmission rate.
For example can replace the control command of 2 byte longs of standard agreement to send 3 byte control commands or 4 byte control commands, be used for addressing.How many data volume and and then the how many address areas of response when in this way, transmission rate multiplication that can be interior at one time and data length double.
Control device 10 can change the back and carry out and check finishing its transfer of data, with check other bus user for example operating means 1 whether can know through the transfer of data adjusted and whether can correspondingly adjust its transfer of data.For this reason, control device 10 can send to the control command that is used for status poll many each bus users.If each bus user can be adjusted its transfer of data, then this bus user is replied and is used for according to answering the control command of state through the transfer of data of adjusting.If there is not state to answer, then control device 10 must suppose that the bus user of this response can't adjust transfer of data.In the case, control device 10 must be recalled to its transfer of data to first transfer of data again.According to this example, control device 10 can be inquired for example operating means 1 and check whether can adopt adjusted transfer of data of each bus user according to its known address (this has provided) when throw to pay using in illuminator.
When the control circuit in the operating means 12 is defined as having changed this transformat and is used for the transmission of digital control command according to the transmission after changing, perhaps when having changed this transformat by special control command and be used for the transmission of digital control command, control circuit 2 is stored the information about the transformat of the digital control instruction transmission usefulness of last selection in memory 8.The storage of this information can also be finished by connecting mains supply behind the making operation device according to regular time intervals or when receive control command per first time.
Can so expand example shown in Figure 1, that is, three have operating means 1a, the 1b of not homochromy LED (for example RGB) and 1c to control by a control device 10 respectively.There are three operating means 1a, 1b and the 1c of not homochromy LED (for example RGB) to be combined in the photophore respectively, are used to obtain color lighting.But, mode can also have a plurality of converter 3a, 3b and 3c in an operating means 1 as an alternative, at least one LED of color of each convertor controls (for example RGB).The control of three converter 3a, 3b and 3c is undertaken by common control circuit 2.
When the user wishes to follow soft fast versicolor special efficacy illumination now, but when this special efficacy illumination can only realize because of the limiting transmission of data condition according to the DALI standard very restrictedly, the user can directly or by the calculating in the control device 10 adjust higher transmission rate and higher brightness step.To this, control device 10 will be adjusted transfer of data by bus 21.
Fig. 2 represents such example, in this example, at least one control device 10 by bus 21 control be used for as the gaseous discharge lamp LA of luminescent device operating means 1 '.Another control device 11 is connected on this bus 21.
Operating means 1 ' have a rectifier 14, it is connected to power supply network 20.The electric energy of being accepted by rectifier 14 is passed to intermediate circuit 15, and this intermediate circuit can comprise active circuit of power factor correction (PFC) and energy storage.After the intermediate circuit 15 is inverter 16, and it is by load circuit 17 control gaseous discharge lamp LA.Inverter 16 can be made of half-bridge, and this half-bridge gives load circuit 17 supply pulsed dc voltages.Load circuit 17 can be made of the resonance series loop that comprises an inductance and an electric capacity.
Control circuit 2 is received bus 21 by interface circuit 4, so the control command that control device 10 is sent can be received.
Control device 10 can be monitored the transfer of data with analysis and utilization bus 21.In case control device 10 has been determined the change of transmission rate, then its transmission rate that is used to control command to be received and dispatched can be adjusted.According to same way as, operating means 1 ' can adjust the transmission rate that it is used to control command to be received and dispatched.
Fig. 3 express time curve chart and will be used to illustrate control command of the present invention transmission.Signal A according to the DALI standard shown here, this signal has the transmission rate of regulation.The length of control command is determined, as the amplitude and the edge steepness of signal.Control command according to the DALI standard constitutes by 16, and wherein the valid data transmission rate is 1200 bps.The position is 416us long this moment.This so-called position is long determined with the transmission rate of transmission control command.This moment, admissible edge steepness was positioned at the scope of 10us to 100us.
Also show secondary signal B, it has the twice transmission rate of signal A.The edge steepness of this signal can be in the scope of 5us to 30us.The position is long for example can be reduced to 213us, but it also can be reduced in the scope of 100us to 150us.
And secondary signal B is originally different in edge steepness, level height or signal figure place aspect and the signal A of its signal.
These two kinds of different transpost formats can also so be distinguished by its transmission, and promptly first transformat utilizes so-called " low state is effective " transmission, that is, short of transmission data are with regard to one of the long-term existence level of 12V for example.Under the transfer of data situation, level is in order to transmit one and be pulled down to for example level of 2V.And second transformat can utilize a signal that involves so-called " high state is effective " transmission.In the case, short of transmission data are with regard to one of the long-term existence level of 0V for example.Under the transfer of data situation, level is in order to transmit one and bring up to for example 12V.
In this way, can between such two kinds of transfer of data, select, in a kind of therein transfer of data, by " low state is effective " transmission to bus 21 apply permanent voltage and thereby can give control device 10 power supplies by bus 21, another kind of transfer of data involves " high state is effective " transmission.The high state effectively advantage of transmission is do not need bus 21 to power for a long time, thereby control device 10 to be disconnected fully when bus error is operated.