CN102573184B - Lighting fixture control chip, device, system as well as addressing method thereof - Google Patents

Lighting fixture control chip, device, system as well as addressing method thereof Download PDF

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Publication number
CN102573184B
CN102573184B CN201010602064.0A CN201010602064A CN102573184B CN 102573184 B CN102573184 B CN 102573184B CN 201010602064 A CN201010602064 A CN 201010602064A CN 102573184 B CN102573184 B CN 102573184B
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China
Prior art keywords
lighting fixture
control chip
fixture control
setting voltage
address
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CN201010602064.0A
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Chinese (zh)
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CN102573184A (en
Inventor
林俊甫
郭俊廷
谢政翰
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明阳半导体股份有限公司
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Priority to CN201010602064.0A priority Critical patent/CN102573184B/en
Publication of CN102573184A publication Critical patent/CN102573184A/en
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Abstract

The invention relates to a lighting fixture control chip, a device, a system and an addressing method of the lighting fixture control chip. The lighting fixture control chip is provided with a triggering end, an output end and a signal receiving interface, wherein the triggering end is used for receiving a first setting voltage, and the output end is used for outputting a second setting voltage. The signal receiving interface is used for receiving a data packet provided with a plurality of serial transmission data slots; the address of the lighting fixture control chip is automatically determined according to the voltage level of the first setting voltage and a counting signal corresponding to the received amount of the data slots. For the lighting fixture control chip, the arrangement order of each chip can be adjusted at random, and when each chip receives the data packet, the corresponding address can be automatically set, and the lighting fixture control chip is very convenient to use.

Description

Lighting fixture control chip, device, system and its addressing method

Technical field

The present invention relates to a kind of lamp control device, and be particularly related to a kind of lighting fixture control chip, apparatus, system and method for the DMX512 of being applicable to agreement.

Background technology

The application of LED is more and more extensive, is mainly used in illumination and shows with cresset, and wherein the control criterion of the most frequently used LED is DMX512 standard.DMX512 is a kind of standard of Interface for digital communication, is mainly used in the communication protocol between light units, and its content comprises the data format of transfer of data, the electrical characteristic of equipment and connector type.DMX512 agreement at first Shi You U.S. theater technological associations (Engineering Commission of United States Institute for Theatre Technology, USITT) develops formulation.Before DMX512 agreement is worked out, just have a lot of light control protocols to be applied on light units, but along with system is more and more complicated, the mutual capacitive demand between different product is just more and more high, DMX512 be in this case in response to and give birth to.

DMX512 data are to adopt asynchronous serial data transmission mode (asynchronous serialformat) to transmit, each data packet comprises an initial code (START CODE) and maximum 512 channel datas, wherein (slot 0 for the 1st slot data, also can be described as time slot) be used for transmitting initial code, the 2nd slot data (slot 1) thereafter to the 512nd slot data (slot 512) is for Transfer pipe data.The world, domestic Computer lamp generally adopt DMX512 data format Draw up Procedure Files at present.The speed of DMX512 data flow is 250K, 4 microseconds (us) that each bit is full-length, and the bit length that meets agreement is between 3.92us~4.08us.

With the standard agreement of DMX512 standard or its extension, control the addressing that light fixture needs setup control chip, the general practice is to use pin position setting or writing address is to each control chip one by one.No matter be which kind of practice, in known technology, control chip need to carry out respectively the action of writing address, position that cannot its connection of automatic Identification and order.

Summary of the invention

The invention provides a kind of lighting fixture control chip, equipment and system, what its chips can automatic Identification itself puts in order and automatically sets address to reach the effect of automatic desired location.

The invention provides a kind of method for controlling lamp, utilize the slot data quantity having received putting in order with automatic setting chip address of the chip of identification own, reach whereby the effect of automatic setting address.

The present invention proposes a kind of lighting fixture control chip, be applicable to drive one or more light fixtures according to one first setting voltage and a data packet, wherein this data packet has the slot data of a plurality of serial transmissions, wherein, this lighting fixture control chip comprises a trigger end, one output and a signal receiving interface, this trigger end is in order to receive this first setting voltage, this output is in order to export one second setting voltage, this signal receiving interface is in order to receive this data packet, wherein this lighting fixture control chip according to the voltage level of this first setting voltage with corresponding to the count signal of the slot data quantity having received, determine an address of this lighting fixture control chip.

In an embodiment of the present invention, wherein this lighting fixture control chip is when voltage level conversion to preset potential of this first setting voltage being detected, according to the count signal of the slot data quantity corresponding to having received, determine this address of this lighting fixture control chip, then after the slot data of interval one predetermined quantity, this second setting voltage that this output is exported is converted to this preset potential.

In an embodiment of the present invention, above-mentioned lighting fixture control chip bag one counter is drawn together a counter, an address setting unit and a driver element.Counter is coupled to this signal receiving interface and this trigger end, the slot data quantity having received in order to counting, and when voltage level conversion to preset potential of this first setting voltage, export this count signal corresponding to the slot data quantity having received.Address setting unit is coupled to this counter, according to this count signal, sets this address.Driver element is coupled to this address setting unit and this signal receiving interface, reads the one or more light fixtures of corresponding one or more slot datas to drive this lighting fixture control chip to be connected according to this address in this received data packet.

In an embodiment of the present invention, wherein above-mentioned data packet is corresponding to the data format of DMX512 standard, and this first setting voltage is a DC voltage level, and this signal receiving interface is applicable to receive the signal that meets EIA-485 standard.

A kind of lamp control device of the another proposition of the present invention, be applicable to drive a plurality of light fixtures according to one first setting voltage and a data packet, wherein this data packet has the slot data of a plurality of serial transmissions, and this lamp control device comprises one first lighting fixture control chip and one second lighting fixture control chip.The first lighting fixture control chip has one first trigger end, one first output and a first signal receiving interface, wherein this first trigger end is in order to receive this first setting voltage, this first output is in order to export one second setting voltage, and this first signal receiving interface is in order to receive this data packet.The second lighting fixture control chip has one second trigger end, one second output and a secondary signal receiving interface, and wherein this second trigger end is coupled to this first output, and this secondary signal receiving interface is in order to receive this data packet.Wherein this first lighting fixture control chip determines one first address of this first lighting fixture control chip according to the voltage level of this first setting voltage and one first count signal of the slot data quantity having received corresponding to this first lighting fixture control chip; This second lighting fixture control chip determines one second address of this second lighting fixture control chip according to the voltage level of this second setting voltage and one second count signal of the slot data quantity having received corresponding to this second lighting fixture control chip.

The present invention proposes again a kind of lighting system, comprises a plurality of light fixtures and above-mentioned lamp control device.Lamp control device is coupled to those light fixtures, is applicable to drive these light fixtures according to one first setting voltage and a data packet, and wherein lamp control device as mentioned above, does not add tired stating at this.

From another perspective, the present invention proposes a kind of addressing method of lighting fixture control chip, be applicable to a lighting fixture control chip, this lighting fixture control chip comprises a trigger end, one output and a signal receiving interface, wherein this trigger end is in order to receive one first setting voltage, this output is in order to export one second setting voltage, this signal receiving interface is in order to receive a data packet, wherein this data packet has the slot data of a plurality of serial transmissions, wherein, this addressing method comprises the following steps: to count slot data quantity that this lighting fixture control chip received to produce a count signal, and according to the voltage level of this first setting voltage with corresponding to this count signal of the slot data quantity having received, determine an address of this lighting fixture control chip.

Comprehensively above-mentioned, proposed by the invention lighting fixture control chip can automatically be set address according to the slot data having received when being triggered.The program that lighting fixture control chip of the present invention does not need outside set mechanism or manually sets one by one, just the putting in order and set corresponding address of detection itself automatically.Whereby, lighting fixture control chip of the present invention can arbitrarily be adjusted putting in order of each chip, and each chip can automatically be set corresponding address when receiving data packet, quite convenient in the use.

For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.

Accompanying drawing explanation

Fig. 1 is the lighting system schematic diagram according to first embodiment of the invention.

Fig. 2 is the signal waveforms according to first embodiment of the invention.

Fig. 3 is according to the circuit diagram of the lighting fixture control chip of first embodiment of the invention.

Fig. 4 is the addressing method flow chart according to second embodiment of the invention.

Description of reference numerals in above-mentioned accompanying drawing is as follows:

100: lighting system

110: the first lamp control devices

111~119: first to N lighting fixture control chip

120:DMX512 controller

131~139: first to N light fixture

141: trigger end

142: signal receiving interface

143: output

R: resistance

Slot 0~slot 2: slot data

BREAK: interrupt

MAB: in have no progeny the time

H: logic high potential

L: logic low potential

219: the interchannel time

210: address setting unit

220: counter

230: driver element

MD: count signal

S410~S420: step

Embodiment

Hereinafter, will illustrate that embodiments of the invention describe the present invention in detail by accompanying drawing, and same reference numbers in accompanying drawing can be in order to element like representation class.

(the first embodiment)

Please refer to Fig. 1, Fig. 1 is the lighting system schematic diagram according to first embodiment of the invention, and lighting system 100 comprises a plurality of light fixtures, according to putting in order, with first, represents to N light fixture 131~139.Lighting system 100 more comprises lamp control device 110, it comprises that first to N lighting fixture control chip 111~119, wherein first is respectively coupled to first to N light fixture 131~139 to N lighting fixture control chip 111~119, to drive respectively first to N light fixture 131~139, wherein N is positive integer.The first trigger end 141 to N lighting fixture control chip 111~119 is connected with series system with output 143, each lighting fixture control chip has trigger end 141, output 143 and signal receiving interface 142, and the output 142 of the lighting fixture control chip of previous stage is coupled to the trigger end 141 of the lighting fixture control chip of next stage.141 of the trigger ends of the first lighting fixture control chip 111 are coupled to the first setting voltage, and wherein the first setting voltage is fixing DC voltage level, for example 5V or 3V, but the present invention is not restricted to this.Above-mentioned light fixture is for example light-emitting diode (light emitting diode, LED) light fixture, but the present invention is not restricted to this.

The first signal receiving interface 142 to N lighting fixture control chip 111~119 all can be coupled to the output interface of DMX512 controller 120 to receive the data packet corresponding to DMX512 standard, and wherein each data packet has the slot data (slot) of a plurality of serial transmissions.As shown in Figure 1, the first signal receiving interface 142 to N lighting fixture control chip 111~119 is to be connected in parallel the output interface of DMX512 controller 120 to receive DMX control signal (being data packet).That is to say, in the present embodiment, the addressing interface that the first trigger end 141 to N lighting fixture control chip 111~119 and output 143 can be considered single line, is that the mode of connecting connects.The first signal receiving interface 142 to N lighting fixture control chip 111~119 can be considered the interface that signal receives, and is the output interface that is connected in parallel DMX512 controller 120.

The output interface of DMX512 controller 120 is for example the differential transmission interface of RS485 standard, and also referred to as EIA-485 coffret, but the present invention is not restricted to this.RS485 is differential interface, so its end meeting contact resistance R is to form loop.The applicable signal that meets EIA-485 standard that receives of signal receiving interface 142.The speed of DMX512 controller 120 output data packets can be determined according to system requirements, for example, adopt DMX512 standard or two speed DMX512 standards or four speed DMX512 standards, but the present invention is not restricted to this.So-called two speed DMX512 standards or four speed DMX512 standards are exactly to transmit more data packets in same period by the doubling frequency of the DMX512 of standard.In addition, up-to-date DMX standard, be named as RDM (remote device management), its time standard and DMX512 are the same, but it can pass back to by the state of differential interface handle assembly DMX controller, so the signal that this interface is likely two-way (receive and transmit) transmits interface.Signal receiving interface 142 of the present invention also can adopt the interface that meets above-mentioned RDM standard to realize.

First to an address that N lighting fixture control chip 111~119 can determine lighting fixture control chip according to the received voltage level of trigger end 141 and count signal corresponding to the slot data quantity having received to represent the order of connection (as first or second) of itself.First lighting fixture control chip 111 of take is example, and when receiving data packet, the quantity of the slot data that the first lighting fixture control chip 111 countings are received is to produce count signal.Enumeration data groove quantity has a variety of, as long as detect in each slot data, only there will be signal once, for example, can use (1) initial code (start bit); (2) the 8 bit data (8bit data) in slot data; (3) stop bit (stop bits); (4) interchannel mark (mark betweenslot), because above-mentioned four signals are in 1 slot data, all only there will be once.In other words, the mode of enumeration data groove can detect via the form corresponding to slot data or signal, extrapolates the quantity of slot data in mode indirectly.

When the first setting voltage being detected and be converted to logic high potential, the first lighting fixture control chip 111 can be according to determine the address of the first lighting fixture control chip 111 corresponding to the count signal of the slot data quantity having received.For instance, if the first setting voltage is exactly logic high potential when system starts, the first lighting fixture control chip 111 can be logic high potential with regard to the level of its trigger end 141 being detected before receiving any slot data.Now, because the slot data quantity having received is zero, so the first lighting fixture control chip 111 will be known, itself be to be arranged in first of all lighting fixture control chips.

Then, the first lighting fixture control chip 111 can, after voltage level conversion to preset potential of the first setting voltage (the present embodiment be take logic high potential as example) being detected, can continue to count received slot data quantity.Then, the slot data of one predetermined quantity at interval (for example 1 slot data or two slot datas, can determine on demand) afterwards, the second setting voltage that the output of the first lighting fixture control chip 111 143 can be exported is converted to preset potential (being logic high potential).

In like manner, the second lighting fixture control chip 112 can, when the current potential of its trigger end 141 (the second setting voltage that output 143 of the first lighting fixture control chip 111 is exported) being detected and be converted to logic high potential, determine the address of the second lighting fixture control chip 112 according to the count signal of the slot data quantity corresponding to having received.For instance, if the first lighting fixture control chip 111 is, after the slot data of one, interval, its output 143 is converted to logic high potential.The second lighting fixture control chip 112 can first receive the current potential that its trigger end 141 just can be detected after a slot data and be converted to logic high potential.Therefore, the second lighting fixture control chip 112 can learn it itself is to be arranged in second of all lighting fixture control chips, and the address of setting itself accordingly.

By that analogy, each lighting fixture control chip 111~119 can be converted at the current potential of its trigger end 141 logic high potential time (when trigger end 141 is triggered), according to the slot data quantity that received, learn that then putting in order of itself determine the address of lighting fixture control chip.First, to N lighting fixture control chip 111~119, set behind address itself, just can be according to the slot data in its address reading data package to drive corresponding first to N light fixture 131~139.For instance, the 1st slot data (slot 1) in the first lighting fixture control chip 111 reading out data packages, and the 2nd slot data (slot 2) in the second lighting fixture control chip 112 reading out data packages, the rest may be inferred for all the other lighting fixture control chips, at this, is not repeated.In addition, it should be noted that, each lighting fixture control chip also can once read a plurality of slot datas, the the 1st to the 3rd slot data (slot 1~slot 3) in the first lighting fixture control chip 111 reading out data packages for example, and the 4th~6th slot data (slot 4~slot 6) in the second lighting fixture control chip 112 reading out data packages, the rest may be inferred for all the other lighting fixture control chips, at this, is not repeated.That is to say, first can be respectively determines the address of lighting fixture control chip according to the voltage level of its trigger end 141 and the count signal corresponding to the slot data quantity having received to N lighting fixture control chip 111~119.

Next, coordinate the waveform of data packet to further illustrate the above-mentioned first address setting mode to N lighting fixture control chip 111~119.Please with reference to Fig. 2, Fig. 2 is the signal waveforms according to first embodiment of the invention.Generally speaking, in the data packet of DMX512, the slot data slot 0 transmitting is at first initial code (start code), can be used for the light fixture type that difference connects, with initial data groove, represent in the present embodiment, the 1st to the 512nd slot data (slot 1~slot 512) is thereafter the data that drive light fixture for transmitting.The data format of DMX512 signal comprise interruption " BREAK ", in have no progeny the time " Marktime after BREAK; MAB ", initial code (start code, be arranged in initial data groove slot 0), channel data (is positioned at the 1st slot data slot 1 to the 512nd slot data slot 512, the 1st slot data slot 1 after the 512nd slot data slot 512 is positioned at initial data groove slot 0, the not shown all slot datas of Fig. 2), the interchannel time 219 (Mark time between slots).Detailed DMX512 standard please refer to its specification, at this, does not add tired stating.

In Fig. 2, the first setting voltage represents the received voltage of trigger end 141 of the first lighting fixture control chip 111, the second setting voltage represents the received voltage of the trigger end 141 of the second lighting fixture control chip 112 (while is also the voltage that the output 143 of the first lighting fixture control chip 111 is exported), and the 3rd setting voltage represents the received voltage of the trigger end 141 of the 3rd lighting fixture control chip 113 (while is also the voltage that the output 143 of the second lighting fixture control chip 112 is exported).

When system starts, the first setting voltage is preset as logic high potential (H), and therefore the address of the first lighting fixture control chip 111 meeting settings itself is the first cis-position, represents that it is arranged in all lighting fixture control chips 111~119 first.Then, after the slot data of one, interval, the second setting voltage can be converted to logic high potential by the first lighting fixture control chip 111 and set its address to trigger the second lighting fixture control chip 112.The position that is converted to logic high voltage due to the second setting voltage is to be positioned at initial data groove slot 0, so the second lighting fixture control chip 112 can detect initial data groove slot 0, the second lighting fixture control chip 112 can be take corresponding to putting in order as second lighting fixture control chip setting address whereby.In like manner, after the slot data of one, interval, the voltage (the 3rd setting voltage) that the second lighting fixture control chip 112 can be exported its output 143 after the 1st slot data slot 1 being detected be converted to logic high potential with the 3rd lighting fixture control chip 113 that triggers next stage to set address.In like manner analogize, the slot data quantity having received when the lighting fixture control chip of rear end can sequentially be triggered and foundation triggers is known the address that puts in order to determine itself of itself by inference.

In addition, it should be noted that the time of switching output end voltage can be chosen in transmit slot data during in arbitrary position, as shown in the second setting voltage in Fig. 2, as long as lighting fixture control chip can be counted the slot data quantity having received.In another embodiment of the present invention, after also can completing in corresponding slot data transmission, switches again the time of switching output end voltage, and the present invention is not restricted to this.Through as shown in the above description, lighting fixture control chip of the present invention is the putting in order and set corresponding address to read corresponding slot data of detection itself automatically.In lighting fixture control chip, from trigger end 141 be triggered (setting voltage that receives preset potential) to interval time of the setting voltage exported of its output 143 of conversion, can be one or more slot datas (or cycle of slot data).The interval time of the lighting fixture control chip of all series connection must be identical, and the slot data that lighting fixture control chip could receive via counting is like this known the arrangement position of itself by inference.

For instance, suppose that be two slot datas interval time, the slot data having received when lighting fixture control chip is triggered is 10 (or receive the 9th slot data, slot 9), represents that this lighting fixture control chip is to be arranged in the 6th.In addition, in the present embodiment, the number of the lighting fixture control chip of serial connection is not limited, for example two or more lighting fixture control chips.According to the explanation of above-mentioned the present embodiment, the art those of ordinary skill should be known other execution modes by inference, at this, does not add tired stating.

In addition, in the present embodiment, first can re-start the action of setting address, or continue to use the address of setting for the first time when the new data packet of one of every reception to N lighting fixture control chip 111~119, and the present embodiment is not limited.When the first setting voltage is converted to logic low potential or ground connection, above-mentioned first just can continue to use the address originally setting to N lighting fixture control chip 111~119, and can not reset address.

First can utilize firmware or circuit to realize to the addressing system in N lighting fixture control chip 111~119, and the present invention does not limit.Take circuit as example, please refer to Fig. 3, Fig. 3 is according to the circuit diagram of the lighting fixture control chip of first embodiment of the invention.Wherein, Fig. 3 be take the first lighting fixture control chip 111 as example explanation, and the structure of all the other lighting fixture control chips is identical, can be known by inference by Fig. 3.Please refer to Fig. 3, the first lighting fixture control chip 111 comprises address setting unit 210, counter 220 and driver element 230, and its Counter 220 is coupled to signal receiving interface 142, trigger end 141, output 143 and address setting unit 210.Driver element 230 is coupled to address setting unit 210 and signal receiving interface 142 with according to the slot data in the address reading data package setting.

Counter 220 is used for the slot data quantity that receives of counting, and the voltage level conversion of the first setting voltage during to preset potential (as logic high potential) output corresponding to the count signal MD of the slot data quantity having received to address setting unit.Address is set according to count signal MD in address setting unit 210.Then, driver element 230 reads the one or more light fixtures of corresponding one or more slot datas to drive the first lighting fixture control chip 111 to be connected according to the address setting in received data packet.Voltage that it should be noted that above-mentioned output 143 can be realized by other circuit, for example driver element 230 outputs, and above-mentioned Fig. 3 is only one embodiment of the invention, the present invention is not limited to this.In the present embodiment, the preset potential of above-mentioned the first setting voltage is to take logic high potential as example explanation, but in another embodiment of the present invention, above-mentioned preset potential also can be set as logic low potential according to design requirement, and the present invention is not limited to this.

(the second embodiment)

According to the explanation of above-described embodiment, the present invention can summarize a kind of addressing method of lighting fixture control chip, is applicable to a lighting fixture control chip.This lighting fixture control chip comprises a trigger end, an output and a signal receiving interface, wherein trigger end is in order to receive one first setting voltage, output is in order to export one second setting voltage, signal receiving interface is in order to receive a data packet, and wherein data packet has the slot data of a plurality of serial transmissions.The structure of lighting fixture control chip please refer to the explanation of above-mentioned the first embodiment.The flow chart of addressing method please refer to Fig. 4, and Fig. 4 is the addressing method flow chart according to second embodiment of the invention.First, the slot data quantity that received of counting lighting fixture control chip to be to produce a count signal (step S410), then according to the voltage level of the first setting voltage with corresponding to the count signal of the slot data quantity having received, determine an address (step S420) of this lighting fixture control chip.Wherein when step S420 is more included in the voltage level conversion that the first setting voltage detected and is a preset potential, according to the slot data quantity having received, determine the address of the first lighting fixture control chip, then after the slot data of interval one predetermined quantity, the second setting voltage that output is exported is converted to preset potential (for example logic high potential).All the other details of addressing method of the present invention, the art those of ordinary skill should be known by inference in the explanation of above-mentioned the first embodiment, at this, does not add tired stating

In addition, it should be noted that the relation that couples between said elements comprises direct or indirect electric connection, as long as can reach required electrical signal transfer function, the present invention is not limited.Technological means in above-described embodiment can merge or use separately, and its element can increase, remove, adjust or replace according to its function and design requirement, and the present invention is not limited.After the explanation via above-described embodiment, the art those of ordinary skill should be known its execution mode by inference, at this, does not add tired stating.

In sum, lighting fixture control chip of the present invention can transmit setting voltage according to slot data sequential time delay, then in conjunction with the characteristic of DMX512 data packet and the sequential of the setting voltage that postpones to transmit, allow lighting fixture control chip can carry out via the slot data quantity having received the effect that puts in order to reach automatic addressing of identification itself.

Although preferred embodiment of the present invention has disclosed as above; yet the present invention is not limited to above-described embodiment; any those skilled in the art; within not departing from disclosed scope; when doing a little change and adjustment, so protection scope of the present invention should be as the criterion with the appended scope that claim was defined.

Claims (9)

1. a lighting fixture control chip, be applicable to drive one or more light fixtures according to one first setting voltage and the data packet from outside, wherein this data packet has the slot data of a plurality of serial transmissions, it is characterized in that this lighting fixture control chip comprises a trigger end, one output and a signal receiving interface, this trigger end is in order to receive this first setting voltage, this output is in order to export one second setting voltage, this signal receiving interface is in order to receive this data packet, the slot data quantity that wherein this lighting fixture control chip counting has received and according to the voltage level of this first setting voltage with corresponding to a count signal of the slot data quantity having received, determine an address of this lighting fixture control chip, wherein this lighting fixture control chip is when voltage level conversion to preset potential of this first setting voltage being detected, according to this count signal, determine this address of this lighting fixture control chip, then after the slot data of interval one predetermined quantity, this second setting voltage that this output is exported is converted to this preset potential.
2. lighting fixture control chip as claimed in claim 1, is characterized in that this lighting fixture control chip also comprises:
One counter, is coupled to this signal receiving interface and this trigger end, the slot data quantity having received in order to counting, and when voltage level conversion to preset potential of this first setting voltage, export this count signal corresponding to the slot data quantity having received;
One address setting unit, is coupled to this counter, according to this count signal, sets this address; And
One driver element, is coupled to this address setting unit and this signal receiving interface, reads the one or more light fixtures of corresponding one or more slot datas to drive this lighting fixture control chip to be connected according to this address in this received data packet.
3. lighting fixture control chip as claimed in claim 1, is characterized in that this data packet is corresponding to the data format of DMX512 standard, and this first setting voltage is a DC voltage level, and this signal receiving interface is applicable to receive the signal that meets EIA-485 standard.
4. a lamp control device, is applicable to drive a plurality of light fixtures according to one first setting voltage and the data packet from outside, and wherein this data packet has the slot data of a plurality of serial transmissions, it is characterized in that this lamp control device comprises:
One first lighting fixture control chip, there is one first trigger end, one first output and a first signal receiving interface, wherein this first trigger end is in order to receive this first setting voltage, this first output is in order to export one second setting voltage, and this first signal receiving interface is in order to receive this data packet; And
One second lighting fixture control chip, has one second trigger end, one second output and a secondary signal receiving interface, and wherein this second trigger end is coupled to this first output, and this secondary signal receiving interface is in order to receive this data packet;
Wherein, the slot data quantity that this first lighting fixture control chip counting has received and one first address that determines this first lighting fixture control chip according to the voltage level of this first setting voltage and one first count signal of the slot data quantity having received corresponding to this first lighting fixture control chip; This second lighting fixture control chip determines one second address of this second lighting fixture control chip according to the voltage level of this second setting voltage and one second count signal of the slot data quantity having received corresponding to this second lighting fixture control chip;
Wherein, this first lighting fixture control chip is when the voltage level conversion that this first setting voltage detected is a preset potential, according to this first count signal, determine this first address of this first lighting fixture control chip, then after the slot data of interval one predetermined quantity, this second setting voltage that this output is exported is converted to this preset potential.
5. lamp control device as claimed in claim 4, is characterized in that this first lighting fixture control chip comprises:
One counter, is coupled to this first signal receiving interface and this first trigger end, and the slot data quantity having received in order to counting is to produce this first count signal;
One address setting unit, is coupled to this counter, according to this first count signal, sets this first address; And
One driver element, be coupled to this address setting unit and this first signal receiving interface, according to this first address, in this received data packet, read the one or more light fixtures of corresponding one or more slot datas to drive this first lighting fixture control chip to be connected.
6. lamp control device as claimed in claim 4, it is characterized in that this data packet is corresponding to the data format of DMX512 standard, this first setting voltage and this second setting voltage are DC voltage level, the applicable signal that meets EIA-485 standard that receives of this first signal receiving interface and this secondary signal receiving interface.
7. a lighting system, is characterized in that this lighting system comprises:
A plurality of light fixtures;
One lamp control device, is coupled to described light fixture, is applicable to drive described light fixture according to one first setting voltage and the data packet from outside, and wherein this lamp control device comprises:
One first lighting fixture control chip, there is one first trigger end, one first output and a first signal receiving interface, wherein this first trigger end is in order to receive this first setting voltage, this first output is in order to export one second setting voltage, and this first signal receiving interface is in order to receive this data packet; And
One second lighting fixture control chip, has one second trigger end, one second output and a secondary signal receiving interface, and wherein this second trigger end is coupled to this first output, and this secondary signal receiving interface is in order to receive this data packet;
The slot data quantity that wherein this first lighting fixture control chip counting has received and one first address that determines this first lighting fixture control chip according to the voltage level of this first setting voltage and one first count signal of the slot data quantity having received corresponding to this first lighting fixture control chip, this second lighting fixture control chip determines one second address of this second lighting fixture control chip according to the voltage level of this second setting voltage and one second count signal of the slot data quantity having received corresponding to this second lighting fixture control chip, this first lighting fixture control chip is when the voltage level conversion that this first setting voltage detected is a preset potential, according to this first count signal, determine this first address of this first lighting fixture control chip, then after the slot data of interval one predetermined quantity, this second setting voltage that this output is exported is converted to this preset potential.
8. the addressing method of a lighting fixture control chip, be applicable to a lighting fixture control chip, this lighting fixture control chip comprises a trigger end, an output and a signal receiving interface, wherein this trigger end is in order to receive one first setting voltage, this output is in order to export one second setting voltage, this signal receiving interface is in order to receive the data packet from outside, and wherein this data packet has the slot data of a plurality of serial transmissions, it is characterized in that this addressing method comprises:
Count slot data quantity that this lighting fixture control chip received to produce a count signal; According to the voltage level of this first setting voltage with corresponding to this count signal of the slot data quantity having received, determine an address of this lighting fixture control chip; And
When the voltage level conversion that this first setting voltage detected is a preset potential, according to this count signal, determine this address of this lighting fixture control chip, then after the slot data of interval one predetermined quantity, this second setting voltage that this output is exported is converted to this preset potential.
9. the addressing method of lighting fixture control chip as claimed in claim 8, it is characterized in that this data packet is corresponding to the data format of DMX512 standard, this first setting voltage is a DC voltage level, and this signal receiving interface is applicable to receive the signal that meets EIA-485 standard.
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