CN107318191A - LED lamp system and life-span monitoring method based on DMX512 agreements - Google Patents
LED lamp system and life-span monitoring method based on DMX512 agreements Download PDFInfo
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- CN107318191A CN107318191A CN201710495458.2A CN201710495458A CN107318191A CN 107318191 A CN107318191 A CN 107318191A CN 201710495458 A CN201710495458 A CN 201710495458A CN 107318191 A CN107318191 A CN 107318191A
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- led lamp
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
Abstract
The invention discloses a kind of LED lamp system based on DMX512 agreements, including：Host computer, DMX512 controllers, multiple LED lamps；A unidirectional state exhausting line is connected between each LED lamp, two bar state exhausting lines are connected between last LED lamp and DMX512 controllers；Each LED lamp includes LED and controls module and multiple sensors；Status information bag is simultaneously transferred in DMX512 controllers and is transferred to host computer by the status information of sensor detection light fixture by state exhausting line, and host computer judges the service life of each LED lamp according to status information bag.The invention also discloses a kind of LED lamp system lifetim monitoring method based on DMX512 agreements.The present invention can be judged the service life of LED lamp, can be sent early warning to having reached and will reach the light fixture in service life time limit, and be carried out light fixture in advance and change preparation, improve efficiency.
Description
Technical field
It is more particularly to a kind of based on multi-path digital transmission the present invention relates to LED lamp system（Digital Multiplex
With 512 pieces of information, DMX512）The LED lamp system of agreement.It is based on the invention further relates to one kind
The LED lamp system lifetim monitoring method of DMX512 agreements.
Background technology
DMX512 agreements are the digital multiplex agreements formulated by theater technology association of the U.S., are that one kind is used for transmitter
Light modulation agreement between lighting network control, is the universal signal control protocol of light implication digitizer.
In the LED lamp system based on DMX512 agreements, a DMX512 control device can control multiple LEDs
Tool, signal transmission, a DMX512 number are carried out between DMX512 controllers and LED lamp using DMX485 namely RS485 buses
According to initial code and 512 each data frames is included, i.e., each package includes 513 bytes, and each digital frame includes 1 starting
Position, 8 data bit and 2 stop positions, DMX512 signal data transfer rate is 250Kbps, and data frame is 4 μ s per bit width,
Sending a frame needs 44 μ s, and the time for sending the data packet of 513 byte is about 23ms.
All be stored with fixed address in the control module of LED lamp, and the control module of LED lamp is only received and its ground
Location relative to frame data, and shown according to the frame data of reception.So the LED lamp system energy based on DMX512 agreements
Control is digitized to LED lamp well.
But can not be realized in the existing LED lamp system based on DMX512 agreements and the life-span of LED lamp is predicted,
It is changed before the service life of LED lamp so as to realize, this can cause that LED occurs in use
Light fixture influences display effect due to being damaged beyond life span.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of LED lamp system based on DMX512 agreements, can be to LED
The service life of light fixture is judged, can send early warning to having reached and will reach the light fixture in service life time limit, and in advance
Carry out light fixture and change preparation, improve efficiency.The invention also discloses a kind of LED lamp system lifetim based on DMX512 agreements
Monitoring method.
In order to solve the above technical problems, the LED lamp system based on DMX512 agreements that the present invention is provided includes：It is upper
Machine, DMX512 controllers, multiple LED lamps.
The host computer and the DMX512 controllers are connected by netting twine.
The data and command signal that the DMX512 controllers connect each LED lamp by RS485 data/address bus are defeated
Enter end；
It is connected with a unidirectional state exhausting line between each LED lamp, last described LED lamp and described
Two bar state exhausting lines are connected between DMX512 controllers.
Each LED lamp includes LED and controls module and multiple sensors.
Each sensor of each LED lamp detects the status information of the corresponding LED lamp and believes state
After breath package formation status information bag and it is transferred to by the state exhausting line of series connection in the DMX512 controllers, it is described
The status information bag of each LED lamp is transferred to the host computer by DMX512 controllers, and the host computer is according to each described
The status information bag of LED lamp judges the service life of each LED lamp.
Further improve is that each sensor of each LED lamp includes：Current sensor, voltage sensor,
Temperature sensor, time timer.
Further improve is that the DMX512 controllers are passed to the data and command signal input of the LED lamp
The transfer rate for sending data is 250Kbps, and the data and order package for transmitting data are 513 bytes.
Further improve is that each sensor of each LED lamp sends described in the DMX512 controllers
Carried out in the time slot of data and order package.
Further improve is to transmit the speed of data between each LED lamp using unidirectional state exhausting line
250Kbps, last described LED lamp transmits the speed of data using two bar state exhausting lines to the DMX512 controllers
250Kbps。
Further improve is that each LED lamp sends the data and order package in the DMX512 controllers
Time slot in transmit the status information bag to corresponding next LED lamp, last described LED lamp exists
The DMX512 controllers send described to DMX512 controllers transmission in the time slot of the data and order package
Status information bag.
Further improve is the lm80 data reportings that are stored with the host computer, and the host computer is by each LED
Status information bag and lm80 the data reportings contrast of tool judge the service life of each LED lamp.
Further improve is that the host computer is computer or work station.
Further improve is that the DMX512 controllers are connected to described by the first A ports and the first B ports
RS485 data/address bus, the data and command signal input of each LED lamp include the first A ports and the first B ports and logical
Cross the first A ports and the first B ports are connected to the RS485 data/address bus.
Further improve be, the TXD ends of each LED lamp are connected to corresponding next by the state exhausting line
The RXD ends of the individual LED lamp.
Last described LED lamp is connected to and the DMX512 controllers phase by the 2nd A ports and the 2nd B ports
Two bar state exhausting lines even, and the two bar states exhausting line is connected to the 2nd A ports and the 2nd B of the DMX512 controllers
Port.
In order to solve the above technical problems, the monitoring of the LED lamp system lifetim based on DMX512 agreements that the present invention is provided
Method comprises the following steps：
Step 1, the DMX512 controllers send the startup life that light fixture service life judges by the RS485 data/address bus
Order.
Step 2, all LED lamps are received after the startup order on the RS485 data/address bus, are made into light fixture
Judge state with the life-span.
Step 3, under light fixture service life judgement state, each sensor of each LED lamp is described
DMX512 controllers send the status information that the corresponding LED lamp is carried out in the time slot of the data and order package
Detection and by status information package formation status information bag.
Step 4, by the state exhausting line of series connection the status information bag of each LED lamp is transferred to it is described
In DMX512 controllers, using transmitting step by step during each LED lamp transmission state packet, it is transmitted as step by step：When prime
The status information bag received is transferred to LED lamp described in next stage by the LED lamp by the corresponding state exhausting line
In, afterwards when the LED lamp that the LED lamp of prime receives upper level passes through the status information bag of coming；By last
The level LED lamp several times and every time the mode of one status information bag of transmission by the status information of all LED lamps
Bag is transferred in the DMX512 controllers, and each LED lamp is described carrying out corresponding status information bag transmission
DMX512 controllers send in the time slot of the data and order package and carried out.
Step 5, the DMX512 controllers are after the status information bag of all LED lamps is received by all institutes
The status information encapsulating bag for stating LED lamp is transferred to the host computer, and the host computer is believed according to the state of each LED lamp
Breath bag judges the service life of each LED lamp.
Further improve is that each sensor of each LED lamp includes：Current sensor, voltage sensor,
Temperature sensor, time timer.
Further improve is, in the time slot that the DMX512 controllers send the data and order package,
The current sensor detects the current average in corresponding time slot, between the voltage sensor senses corresponding time
Average voltage in gap, the temperature sensor detects the temperature averages in corresponding time slot；The time timing
The use total time of the corresponding LED lamp of device real-time statistics；Each LED lamp is always according to the current average, institute
State average voltage and the temperature averages calculate the power average value of the corresponding LED lamp.
Further improve is that the data in the status information bag of each LED lamp include：The address of light fixture, light fixture
Port number, the current average, the average voltage, the temperature averages, the power average value and the LED
The use total time value of light fixture, data check byte.
Further improve is the lm80 data reportings that are stored with the host computer, and the host computer is by each LED
Status information bag and lm80 the data reportings contrast of tool judge the service life of each LED lamp, send early warning, and generate lamp
Have actual life report, light fixture actual life report is sent to cloud platform control data corporation.
The present invention sets multiple sensors in LED lamp, and the status information of LED lamp can be detected by sensor；
The present invention is also provided with state exhausting line and transfers back to the status information package of light fixture in DMX controllers, and DMX controllers are again by shape
State packet is transmitted to host computer, and host computer can judge the service life of each LED lamp according to status information bag, so energy of the present invention
Service life to LED lamp judges, can send early warning to having reached and will reach the light fixture in service life time limit,
And light fixture replacing preparation is carried out in advance, improve efficiency.
Sensor includes current sensor, voltage sensor, temperature sensor, time timer, difference energy in the present invention
Electric current, voltage, temperature and the total time used during the use of LED lamp are detected, wherein electric current, voltage and temperature can
The average power content of light fixture is calculated, so that the status information of light fixture can be judged by average power content, it is total in conjunction with what is used
Time can then estimate its service life.
In the present invention, status information bag is transmitted by state exhausting line, can be realized in DMX512 control devices
Transmission state packet in the data sent and the time slot of order package, and can realize in each time slot transmission one
The status information bag of individual LED lamp, the status information bag of each LED lamp is sequentially transmitted to next LED lamp, and by last
One LED lamp transmits the status information bag of each LED lamp to DMX controllers, and the status information bag of all LED lamps is transferred
The status information bag of all LED lamps is transferred to host computer by Cheng Houzai by DMX controllers, and host computer then can be very square by software
Just realization is analyzed the working condition of each LED lamp, is calculated the service life time limit of each light fixture and is grown light fixture
Actual life reports, moreover it is possible to service life report is sent into cloud platform control data corporation, so as to very convenient basis
Light fixture actual life reports, for having reached and will reach the light fixture in service life time limit, sends early warning, carries out in advance
Light fixture, which is changed, to be prepared, and improves efficiency.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Fig. 1 is the structure chart of LED lamp system of the embodiment of the present invention based on DMX512 agreements.
Embodiment
As shown in figure 1, being the structure chart of LED lamp 3 system of the embodiment of the present invention based on DMX512 agreements, the present invention is real
Applying LED lamp 3 system of the example based on DMX512 agreements includes：Host computer 1, DMX512 controllers 2, multiple LED lamps 3.
The host computer 1 is computer (PC) or work station.The host computer 1 and the DMX512 controllers 2 pass through net
Line is connected, and the agreement of netting twine connection is TCP/IP.
N number of LED lamp 3 is shown in Fig. 1 altogether, LED lamp is also used respectively in Fig. 1（1）, LED lamp（2）Until
LED lamp（N）Represent in a LED lamp 3, bracket as numbering.
The DMX512 controllers 2 are that the DMX485 data/address bus connection in Fig. 1 is each described by RS485 data/address bus
The data and command signal input of LED lamp 3.In the embodiment of the present invention, the DMX512 controllers 2 pass through the first A ports
The RS485 data/address bus is connected to the first B ports, and the data and command signal input of each LED lamp 3 include the
One A ports and the first B ports and each A in the RS485 data/address bus, Fig. 1 is connected to by the first A ports and the first B ports
Port all represents that B ports are all represented with B with A.RS485 buses include a-signal line and B signal line, are a pair of twisted-pair feeders.
A unidirectional state exhausting line is connected between each LED lamp 3, last described LED lamp 3 and institute
State and be connected with two bar state exhausting lines between DMX512 controllers 2.In the embodiment of the present invention shown in Fig. 1, each LED lamp
3 TXD ends are connected to the RXD ends of corresponding next LED lamp 3 by the state exhausting line.
Last described LED lamp 3 is connected to and the DMX512 controllers 2 by the 2nd A ports and the 2nd B ports
Two connected bar state exhausting lines, and the two bar states exhausting line is connected to the 2nd A ports and of the DMX512 controllers 2
Two B ports.In each LED lamp 3, transmitted between RS485 bus signals and each LED lamp 3 by TXD and RXD
Realized between series signals by RS485 conversion modules.
Each LED lamp 3 includes LED and controls module 4 and multiple sensors.
Each sensor of each LED lamp 3 detects the status information of the corresponding LED lamp 3 and by state
After message packet formation status information bag and it is transferred to by the state exhausting line of series connection in the DMX512 controllers 2,
The status information bag of each LED lamp 3 is transferred to the host computer 1, the host computer 1 by the DMX512 controllers 2
The service life of each LED lamp 3 is judged according to the status information bag of each LED lamp 3.
In the embodiment of the present invention, each sensor of each LED lamp 3 includes：Current sensor 5, voltage sensor
Device 7, temperature sensor 6, time timer 8.Current sensor 5 detects the current signal of the LED lamp 3, voltage sensor 7
The voltage signal of the LED lamp 3 is detected, temperature sensor 6 detects the temperature of the LED lamp 3, and time timer 8 is counted
The use time of the LED lamp 3.
The DMX512 controllers 2 transmit data from the transmission speed of data to the LED lamp 3 and command signal input
Rate is 250Kbps, and the data and order package for transmitting data are 513 bytes, i.e., be transmitted using the DMX512 agreements of standard,
Include the initial code of a byte in 513 bytes（StartCode）With the data of 512 bytes.
Each sensor of each LED lamp 3 sends the data and order package in the DMX512 controllers 2
Time slot in carry out.
The speed 250Kbps of data is transmitted between each LED lamp 3 using unidirectional state exhausting line, last
The LED lamp 3 transmits the speed 250Kbps of data using two bar state exhausting lines to the DMX512 controllers 2.
Each LED lamp 3 the DMX512 controllers 2 send in the time slot of the data and order package to
Corresponding next LED lamp 3 transmits the status information bag, and last described LED lamp 3 is controlled in the DMX512
Device 2 processed sends in the time slot of the data and order package and to transmit the status information bag to the DMX512 controllers 2.
Be stored with lm80 data reportings in the host computer 1, and the host computer 1 is by the status information of each LED lamp 3
Bag and lm80 data reportings contrast the service life for judging each LED lamp 3.
The present invention, which can be realized, to be judged the service life of LED lamp, judges that mechanism is as follows：
Current sensor 5, voltage sensor 7, temperature sensor 8 are that the real-time collecting of time timer 6 is corresponding with timing sensor
LED lamp 3 current value, magnitude of voltage, temperature value and net cycle time.Each DMX512 data packets（513 bytes）Hair
It is about 23ms (44us/byte) to send the time, and the frame frequency of DMX512 systems is to have 10ms between 30hz, therefore DMX512 data packets
The time slot of left and right.Using this time slot, LED controls the average current of LED lamp 3 in the timing statisticses gap of module 4
Value, average voltage level and average temperature value, calculate the average power content of light fixture, judge the status information of light fixture.Between each time
Gap returns to the status information of a LED lamp 3, and it is that the status information bag sends next LED lamp 3 to form packet,
The status information bag of all LED lamps 3 is sent back into DMX512 controllers by last LED lamp 3.Finally by PC/
The control software of work station 1, the instantaneous operating conditions of each LED lamp 3 of analytic statistics calculate the use longevity of each LED lamp 3
Order the time limit, the generation actual life of LED lamp 3 report, and be sent to cloud platform control data corporation.It is real according to LED lamp 3
Border service life report, for having reached and will reach the LED lamp 3 in service life time limit, sends early warning, carries out in advance
LED lamp 3, which is changed, to be prepared, and improves efficiency.
LED lamp system lifetim monitoring method of the embodiment of the present invention based on DMX512 agreements comprises the following steps：
Step 1, the DMX512 controllers 2 send the startup life that light fixture service life judges by the RS485 data/address bus
Order.
Step 2, all LED lamps 3 are received after the startup order on the RS485 data/address bus, into light fixture
Service life judges state.
Step 3, under light fixture service life judgement state, each sensor of each LED lamp 3 is described
DMX512 controllers 2 send the state letter that the corresponding LED lamp 3 is carried out in the time slot of the data and order package
Status information package is simultaneously formed status information bag by the detection of breath.
Preferably selection be：Each sensor of each LED lamp 3 includes：Current sensor 5, voltage sensor 7,
Temperature sensor 8, time timer 6.The time slot of the data and order package is sent in the DMX512 controllers 2
Interior, the current sensor 5 detects the current average in corresponding time slot, and the voltage sensor 7 detects corresponding
Average voltage in time slot, the temperature sensor 8 detects the temperature averages in corresponding time slot；When described
Between the corresponding LED lamp 3 of the real-time statistics of timer 6 use total time.
Each LED lamp 3 is calculated always according to the current average, the average voltage and the temperature averages
The power average value of the corresponding LED lamp 3.
Data in the status information bag of each LED lamp 3 include：The address of light fixture, the port number of light fixture, the electricity
Levelling average, the average voltage, the temperature averages, the power average value and the LED lamp 3 use it is total when
Between be worth, data check byte.
Step 4, by the state exhausting line of series connection the status information bag of each LED lamp 3 is transferred to it is described
In DMX512 controllers 2, using transmitting step by step during each 3 transmission state packet of LED lamp, it is transmitted as step by step：
When the LED lamp 3 of prime the status information bag received is transferred to by the corresponding state exhausting line it is next
In the level LED lamp 3, afterwards when the LED lamp 3 that the LED lamp 3 of prime receives upper level passes through the state of coming
Packet；LED lamp 3 is several times as described in afterbody and the mode of one status information bag of transmission will be all described every time
The status information bag of LED lamp 3 is transferred in the DMX512 controllers 2, and each LED lamp 3 is carrying out corresponding state
Information packet transmissions are to send in the time slot of the data and order package to carry out in the DMX512 controllers 2.
Namely：All LED lamps 3 send the state of this grade of LED lamp 3 by state exhausting line to next stage LED lamp 3
Information packet is status information bag（State information data packet includes uniting in the address of light fixture, the port number of light fixture, step 3
Light fixture average current value, average voltage level, average power content, average temperature value and the light fixture of meter use total time value, data school
Test byte etc.）.Every LED lamp 3 is received after the state information data packet of upper level LED lamp 3, is reclaimed in state in time slot
The automatic state information data packet that the upper level LED lamp 3 received is sent to next stage LED lamp 3.Often receive a package i.e.
State information data packet passes a package under next stage；It is straight to cause to complete all packages.Package number is returned in every bus every time
It is relevant with the light fixture quantity in bus.As shown in figure 1, LED lamp（1）Receive after order, to LED lamp（2）Send oneself
Status data package is status information bag；LED lamp（2）Receive and the status data package of oneself is first sent after order, receiving
To LED lamp（1）State package after to LED lamp（3）Send LED lamp（1）State package.The like.Last
Individual LED lamp 3 is LED lamp（N）By state exhausting line, the status information package of all LED lamps 3 is sent to DMX512
Controller 2.
Step 5, the DMX512 controllers 2 will be all after the status information bag of all LED lamps 3 is received
The status information encapsulating bag of the LED lamp 3 is transferred to the host computer 1；In present invention method, DMX512 controllers
2 receive after all status information data packages of last root LED lamp 3 transmission, by TCP/IP procotols, via netting twine
It is sent to PC/ work stations 1.
The host computer 1 judges the use longevity of each LED lamp 3 according to the status information bag of each LED lamp 3
Life.Preferably, be stored with lm80 data reportings in the host computer 1, and the host computer 1 believes the state of each LED lamp 3
Breath bag and lm80 data reportings contrast the service life for judging each LED lamp 3；Judging the state of each LED lamp 3
When, the host computer 1 can calculate corresponding institute according to the current average, the average voltage and the temperature averages
State the power average value of LED lamp 3, afterwards with reference to the LED lamp 3 various states and lm80 data reportings as in lm80
The data such as temperature or luminosity are contrasted, the instantaneous operating conditions of each LED lamp 3 of analytic statistics, judge each LED lamp 3
Actual life, send early warning, and generate the report of light fixture actual life.Meanwhile, this report is sent to cloud platform
Control data corporation.
From the foregoing, it will be observed that the light fixture virtual condition numerical value that the present invention can be transmitted using DMX512 data packets, contrast lm80 reports
Data are accused, the real use state of light fixture can be calculated by composite factors such as temperature, power, use times, and then judge lamp
The actual life of tool, to carry out production and the preparation such as installation of changing light fixture in advance, greatly improve operating efficiency.
Following all data summarizations are easy to centralized management to cloud platform control data corporation.
In addition, in the present invention, the time slot between DMX512 data packets is relevant with the display frame frequency of system, and frame frequency is got over
Height, time slot is shorter, and the information that can be transmitted is fewer.The data packet for needing reasonable disposition state to transmit.Each time
The status data of a light fixture is transmitted in gap；How many light fixture is accomplished by how many time slots in bus；Therefore complete total
The state of all light fixtures at least needs the time required to reclaiming on line：T=light fixture quantity ×（1/ system frame frequency）.
The present invention is described in detail above by specific embodiment, but these not constitute the limit to the present invention
System.Without departing from the principles of the present invention, those skilled in the art can also make many modification and improvement, and these also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of LED lamp system based on DMX512 agreements, it is characterised in that including：Host computer, DMX512 controllers are more
Individual LED lamp；
The host computer and the DMX512 controllers are connected by netting twine；
The DMX512 controllers connect the data and command signal input of each LED lamp by RS485 data/address bus；
It is connected with a unidirectional state exhausting line between each LED lamp, last described LED lamp and described
Two bar state exhausting lines are connected between DMX512 controllers；
Each LED lamp includes LED and controls module and multiple sensors；
Each sensor of each LED lamp detects the status information of the corresponding LED lamp and seals status information
Bag is formed after status information bag and is transferred to by the state exhausting line of series connection in the DMX512 controllers, described
The status information bag of each LED lamp is transferred to the host computer by DMX512 controllers, and the host computer is according to each described
The status information bag of LED lamp judges the service life of each LED lamp.
2. the LED lamp system as claimed in claim 1 based on DMX512 agreements, it is characterised in that：Each LED lamp
Each sensor includes：Current sensor, voltage sensor, temperature sensor, time timer.
3. the LED lamp system as claimed in claim 1 based on DMX512 agreements, it is characterised in that：The DMX512 controls
The transfer rate that device transmits data from data to the LED lamp and command signal input is 250Kbps, transmits the number of data
It is 513 bytes according to order package.
4. the LED lamp system as claimed in claim 3 based on DMX512 agreements, it is characterised in that：Each LED lamp
Each sensor is carried out in the time slot that the DMX512 controllers send the data and order package.
5. the LED lamp system as claimed in claim 3 based on DMX512 agreements, it is characterised in that：Each LED lamp it
Between the speed 250Kbps of data is transmitted using unidirectional state exhausting line, last described LED lamp is using two bar states time
Take-up transmits the speed 250Kbps of data to the DMX512 controllers.
6. the LED lamp system lifetim monitoring method as claimed in claim 1 based on DMX512 agreements, it is characterised in that：
Comprise the following steps：
Step 1, the DMX512 controllers send the startup life that light fixture service life judges by the RS485 data/address bus
Order；
Step 2, all LED lamps are received after the startup order on the RS485 data/address bus, and the longevity is used into light fixture
Order judgement state；
Step 3, under light fixture service life judgement state, each sensor of each LED lamp is controlled in the DMX512
Device processed sends the detection for the status information that the corresponding LED lamp is carried out in the time slot of the data and order package simultaneously
By status information package formation status information bag；
Step 4, the status information bag of each LED lamp is transferred to by the DMX512 by the state exhausting line of series connection
In controller, using transmitting step by step during each LED lamp transmission state packet, it is transmitted as step by step：As the LED of prime
The status information bag received is transferred in LED lamp described in next stage by light fixture by the corresponding state exhausting line, afterwards
When the LED lamp that the LED lamp of prime receives upper level passes through the status information bag of coming；As described in afterbody
LED lamp is several times and the mode of one status information bag of transmission transmits the status information bag of all LED lamps every time
Into the DMX512 controllers, each LED lamp is in DMX512 controls carrying out corresponding status information bag transmission
Device processed sends in the time slot of the data and order package and carried out；
Step 5, the DMX512 controllers will be all described after the status information bag of all LED lamps is received
The status information encapsulating bag of LED lamp is transferred to the host computer, and the host computer is according to the status information of each LED lamp
Bag judges the service life of each LED lamp.
7. the LED lamp system lifetim monitoring method as claimed in claim 6 based on DMX512 agreements, it is characterised in that：
Each sensor of each LED lamp includes：Current sensor, voltage sensor, temperature sensor, time timer.
8. the LED lamp system lifetim monitoring method as claimed in claim 7 based on DMX512 agreements, it is characterised in that：
In the time slot that the DMX512 controllers send the data and order package, the current sensor detection is corresponding
Average voltage in current average in time slot, the corresponding time slot of the voltage sensor senses, the temperature
The temperature averages spent in the corresponding time slot of sensor detection；The corresponding LED of the time timer real-time statistics
The use total time of light fixture；Each LED lamp is flat always according to the current average, the average voltage and the temperature
The power average value of the corresponding LED lamp of mean value computation.
9. the LED lamp system lifetim monitoring method as claimed in claim 8 based on DMX512 agreements, it is characterised in that：
Data in the status information bag of each LED lamp include：The address of light fixture, the port number of light fixture, the current average,
The average voltage, the temperature averages, the use total time value of the power average value and the LED lamp, data
Check byte.
10. the LED lamp system lifetim monitoring method as claimed in claim 9 based on DMX512 agreements, it is characterised in that：
Be stored with lm80 data reportings in the host computer, and the host computer reports the status information bag of each LED lamp and lm80
The service life that data comparison judges each LED lamp is accused, early warning is sent, and generates the report of light fixture actual life, will
The light fixture actual life report is sent to cloud platform control data corporation.
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| CN201710495458.2A CN107318191A (en) | 2017-06-26 | 2017-06-26 | LED lamp system and life-span monitoring method based on DMX512 agreements |
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| CN201710495458.2A CN107318191A (en) | 2017-06-26 | 2017-06-26 | LED lamp system and life-span monitoring method based on DMX512 agreements |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686064A (en) * | 2019-03-02 | 2019-04-26 | 浙江弘电智能科技有限公司 | A kind of intelligent building lighting control system |
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